WO2005019727A1 - Treating system for wastes such as tire, and method for the treatment, and treatment of wastes such as tire - Google Patents

Abstract

[PROBLEMS] To provide a treating system for wastes such as a tire, which allows the continuous treatment of waste tires and the like and the appropriate removal of the toxic substances such as dioxin being generated in the treatment from an exhaust gas. [MEANS FOR RESOLVING PROBLEMS] A treating system for a waste, which has a plurality of treating furnaces (100) for holding the waste in a gas-tight state and generating a destructive distillation gas form the waste, a gas combustion section for utilizing the energy obtained from the combustion of the destructive distillation gas generated in said treating furnaces (100), and a flow path for the destructive distillation gas (310) for transporting the destructive distillation gas from the treating furnaces (100) to the gas combustion section, characterized in that the treating furnace (100) has a discharging path (320) for discharging an exhaust gas in the furnace, said discharging path (320) is arranged to pass through a region held at a specific temperature or higher, and the flow path (310) for the destructive distillation gas and the discharging path (320) have opening/closing valves (311) and (321).

Description

 Specification

 System for treating waste such as tires, method for treating the same, and furnace for treating waste such as tires

 Technical field

 The present invention relates to a waste treatment system, a waste treatment method, and a waste treatment furnace, and more particularly, to an invention suitable for treating waste tires. Background art

 [0002] In collecting carbonization gas from waste tires, generally, waste tires are chipped, and the chip-shaped waste tires are carbonized in a carbonization furnace to obtain carbonized gas. Later waste tires are turned into ash by other treatment means.

 [0003] In a powerful treatment method, it is necessary to tip the tires, and it is necessary to treat the waste tires after obtaining the carbonization gas by another treatment means different from the carbonization furnace. Was very complicated.

 [0004] Furthermore, after the carbonization, until the waste tire is removed from the furnace, the carbonized gas cannot be generated, and the carbonized gas cannot be continuously used. I have.

 [0005] Regarding the dry distillation of waste tires, a method in which a pair of dry distillation furnaces and a boiler are provided is also known (Patent Document 1). However, when treating waste tires, harmful exhaust gas such as dioxin is generated. However, Patent Document 1 does not take such consideration into account.

 Patent Document 1: JP-A-8-94043

 Disclosure of the invention

 Problems to be solved by the invention

[0006] Therefore, in view of the above problems, the present invention provides a tire and the like that can continuously treat waste tires and the like and can accurately remove toxic substances such as dioxin from exhaust gas. It is an object to provide a waste treatment system.

 Means for solving the problem

[0007] The present invention has been made in order to solve the above-mentioned problems, and a tire and the like according to the present invention are provided. The characteristics of this type of waste treatment system are: a plurality of processing furnaces that store waste in a sealed state to generate waste power such as tires, and the energy generated by burning the carbonized gas generated in the processing furnace. A gas-burning section that utilizes a gas furnace, and a carbonization gas flow path that supplies a carbonization gas from the processing furnace to the gas-burning section. The processing furnace has a discharge path that discharges exhaust gas from the furnace. The discharge path is provided so that the exhaust gas passes through a region where the exhaust gas is maintained at a certain temperature or higher by the gas combustion unit. An open / close valve is provided in the dry distillation gas flow path and the discharge path. It is characterized by having been done.

 [0008] In the processing system according to the present invention having the above-mentioned constitutional power, the carbonized gas is generated by one processing furnace, and the carbonized gas is introduced to the gas combustion section from the carbonized gas flow path to the gas combustion section. It can be burned and used for blast furnaces or the like by the heat of combustion. Then, after the carbonization gas is generated in the one processing furnace, carbonization can be started in another processing furnace to supply the carbonization gas to the gas combustion unit, and the carbonization gas is continuously used as a heat source. be able to. Also, after the above-mentioned carbonization gas is generated, the exhaust gas generated in the processing furnace is kept at a certain temperature or higher by the gas combustion part by closing the carbonization gas flow path of one processing furnace and opening the discharge path. The dioxin in the exhaust gas can be removed by passing through the defined area. Further, in one furnace, the waste can be incinerated after being carbonized, and there is no need to transfer the carbonized waste to another treatment means as before.

 [0009] Further, in the processing system according to the present invention, it is preferable that the on-off valve is provided close to the inside of the processing furnace, as described in claim 2.

[0010] By employing this configuration, temperature control in the furnace can be easily performed. Further, when treating a tire, it is also possible to prevent the pitch of tar or the like in which the evaporated oil solidifies from sticking to the flow path. Note that “close to the furnace” means to include an on-off valve in the processing furnace or to provide an on-off valve near a processing furnace in a pipeline connected to the processing furnace.

[0011] Further, the processing system according to the present invention is provided with a carbonization air supply means for supplying air to the processing furnace, as described in claim 3, and the carbonization air supply means at the time of carbonization. It is preferable that the supplied air amount is controlled by the control means. [0012] In the processing system employing the above configuration, the amount of air is adjusted by the control means, so that the carbonization of the waste in the furnace can be controlled, and the desired carbonization gas at a desired time can be obtained. An outbreak can take place. Here, the control means, for example, adjusting the amount of air in accordance with the temperature in the furnace. More specifically, for example, if the inside of the furnace is below a predetermined temperature, a certain amount of air is supplied, and It is possible to stop the air supply if possible, and to restart the air supply when the temperature falls below a predetermined temperature. Further, for example, it is also possible to provide such that the air supply amount is adjusted according to the start time of the carbonization start force.

 [0013] Further, in the processing system according to the present invention, an upper supply port for supplying air to the processing furnace is provided at an upper portion of the processing furnace, as described in claim 4. Preferably, the supply of air is controlled by control means.

 [0014] In the treatment system employing the above configuration, the upper supply rock air can be supplied after the carbonization, and an appropriate amount of air for incineration of waste can be supplied. In particular, the upper supply port is closed at the time of carbonization, and even if the upper supply port is clogged with oil or the like, the upper supply port is provided at the upper portion, so that the oil and the like can be easily removed by the supplied air pressure.

 [0015] Further, in the processing system according to the present invention, as set forth in claim 5, the exhaust gas discharged from the discharge path also passes through a region maintained at a certain temperature or higher by the gas combustion section, and It is preferable that a cooling device be provided downstream of the device.

 [0016] According to the processing system having the above constitution, the exhaust gas is cooled after passing through the region having a certain temperature or higher, so that dioxin can be more reliably removed.

 [0017] Further, the processing system according to the present invention has a suction means for sucking air in the gas combustion section downstream from the gas combustion section, as described in claim 6. It is preferable.

 [0018] According to the processing system having the above configuration, the gas combustion section can be set at a negative pressure also in the processing furnace by the suction means. Therefore, flashback from the gas combustion section to the processing furnace (gas combustion) can be performed. Part of the fire flowing back into the processing furnace).

[0019] Further, a feature of the processing method according to the present invention is that waste such as tires is transferred to a processing furnace. In the treatment furnace, a dry distillation gas is generated in a sealed state with waste, and the dry distillation gas generated in the treatment furnace is passed through a dry distillation gas passage to a gas combustion section. After the combustion, the energy is utilized, and after a lapse of a predetermined time, the dry distillation gas flow path of the processing furnace is closed to open the exhaust path, and the exhaust gas passes through a region where the temperature is maintained at a predetermined temperature or higher by the gas combustion unit. At the same time, carbonized gas is generated in another processing furnace while the waste is sealed, and the generated carbonized gas is burned to the gas combustion section via the carbonized gas passage in the other processing furnace. And use energy.

 [0020] In the processing method according to the present invention having the above-described configuration, the carbonized gas is generated by one processing furnace, and the carbonized gas is introduced into the gas combustion section from the carbonized gas flow path and burned. The heat of combustion can be used, for example, in blast furnaces. Then, after the carbonization gas is generated in the one processing furnace, the carbonization is started in the other processing furnace, and the carbonization gas is supplied to the gas combustion unit. Therefore, the carbonization gas can be continuously used as a heat source. Wear. Further, after the above-mentioned carbonization gas is generated, the carbonization gas flow path of one processing furnace is closed and the discharge path is opened, and the exhaust gas generated in the processing furnace is kept at a certain temperature or higher by the gas combustion unit. The dioxin in the exhaust gas can be removed by passing through the region. Further, in one furnace, the waste can be incinerated after the carbonization of the waste, and it is not necessary to transfer the waste after the carbonization to another treatment means as before.

 [0021] The processing method according to the present invention preferably employs a configuration in which the amount of air supplied to the processing furnace at the time of carbonization is controlled by a control means, as described in claim 8.

 [0022] In the above-described processing method, the carbonization of the waste in the furnace can be controlled by adjusting the amount of air by the control means, and the desired carbonization gas at a desired time can be controlled. An outbreak can take place. Here, the control means, for example, adjusting the amount of air according to the temperature in the furnace. More specifically, for example, if the inside of the furnace is at or below a predetermined temperature, a constant amount of air is supplied, and It is possible to perform a process of stopping the air supply if possible, and restarting the air supply when the temperature falls below a predetermined temperature. Further, for example, it is also possible to provide such that the air supply amount is adjusted according to the start time of the start of the dry distillation.

[0023] Further, the treatment method according to the present invention is characterized in that after the carbonization, Preferably, the upper supply port provided at the top of the furnace supplies air.

[0024] According to the processing method employing the above configuration, the upper supply local air can be supplied after the carbonization, and an appropriate amount of air for incineration of waste can be supplied. In particular, the upper supply port is closed at the time of carbonization, and even if the upper supply port is clogged with oil or the like, the upper supply port is provided at the upper portion, so that the oil and the like can be easily removed by the supplied air pressure. .

 [0025] Further, according to the treatment method of the present invention, as set forth in claim 10, the exhaust gas discharged from the discharge passage is passed through a region maintained at a certain temperature or higher by the gas combustion section, On the side, it is preferable to cool down.

[0026] According to the processing method having the above configuration, the exhaust gas is cooled after passing through a region having a temperature equal to or higher than a certain temperature, so that dioxin can be more reliably removed.

[0027] In the treatment method according to the present invention, as in claim 11, it is preferable that air in the gas combustion unit is sucked from a downstream side of the gas combustion unit by a suction unit.

[0028] According to the processing method having the above-described configuration, the gas combustion unit can be set to a lower pressure than the processing furnace by the suction means, and therefore, backfire from the gas combustion unit to the processing furnace is prevented beforehand. You can do it.

 [0029] Also, a feature of the processing furnace according to the present invention is a processing furnace for waste such as tires that generates carbonized gas from waste gas such as tires. It is characterized in that it has a carbonized gas sending port and an exhaust port for discharging exhaust gas, and is provided with an on-off valve for opening and closing the flow path of the carbonized gas sending port and the exhaust port.

[0030] In the processing furnace according to the present invention having the above configuration, the carbonized gas is generated, and the carbonized gas is sent out from the carbonized gas delivery rocker, and is introduced into, for example, a gas combustion unit and burned. The combustion heat can be used, for example, in blast furnaces. After the above-mentioned carbonization gas is generated, the on-off valve of the carbonization gas outlet of the processing furnace is closed and the on-off valve of the discharge port is opened, and the exhaust gas generated in the processing furnace is discharged to a certain extent by, for example, a gas combustion unit. Dioxin in the exhaust gas can be removed by passing through a region maintained at a temperature equal to or higher than the temperature. Further, in one furnace, the waste can be incinerated after being carbonized, and there is no need to transfer the waste after carbonization to another processing means as in the past. Also this Since the on-off valve is provided in the processing furnace itself, the temperature in the furnace can be easily controlled and the like, and at the same time, it is possible to prevent the pitch of tar or the like in which the evaporated oil solidifies from sticking to the flow path. Further, by connecting the processing furnace to a plurality of gas combustion units, it is possible to start carbonization in another processing furnace after the generation of carbonization gas in one processing furnace and supply the carbonization gas to the gas combustion unit. The carbonization gas can be continuously used as a heat source.

 [0031] Further, the processing furnace according to the present invention is provided with a carbonization air supply means for supplying air into the furnace as described in claim 13, and is supplied by the carbonization air supply means during carbonization. Preferably, the amount of air to be supplied is controlled by the control means.

 [0032] In the processing furnace having the above-mentioned constitutional power, the carbonization of waste in the furnace can be controlled by adjusting the amount of air by the control means, and the desired carbonization gas at a desired time can be obtained. An outbreak can take place. Here, the control means, for example, adjusting the amount of air in accordance with the temperature in the furnace. More specifically, for example, if the inside of the furnace is at or below a predetermined temperature, a certain amount of air is supplied, and In this case, it is possible to perform a process of stopping the air supply, and restarting the air supply when the temperature falls below a predetermined temperature.

 [0033] Further, in the processing furnace according to the present invention, an upper supply port for supplying air is provided at an upper portion in the furnace, and air from the upper supply port is provided. The supply is preferably controlled by control means.

 [0034] According to the processing furnace employing the above configuration, the upper supply locating air can be supplied after the carbonization, and an appropriate amount of air for incineration of waste can be supplied. In particular, the upper supply port is closed at the time of carbonization, and even if the upper supply port is clogged with oil, etc., since it is provided at the upper part, the oil etc. can be easily removed by the supplied air pressure. .

 [0035] Further, the processing furnace according to the present invention has an opening for carrying waste into the furnace and a lid for closing the opening, as described in claim 15. It is preferable that the lid is provided so as to be slidable with respect to the furnace main body, and is provided so as to be pressed against the furnace main body side by a clamp means!

[0036] According to the processing furnace having the above-mentioned constitutional power, the opening force enables waste to be carried in and out. By closing the lid, the inside of the furnace can be sealed. In particular, since the lid is provided so as to slide with respect to the furnace main body and be pressed against the furnace main body side by the clamp means, it is more reliably provided than the one provided rotatably with a hinge. The inside of the furnace can be sealed.

 The invention's effect

 [0037] As described above, according to the processing system of the present invention, after the carbonization gas is generated in one processing furnace, the carbonization is started in another processing furnace, and the carbonization gas is supplied to the gas combustion unit. And the carbonization gas can be continuously used as a heat source. Further, after the above-mentioned carbonization gas is generated, the exhaust gas generated in the processing furnace is heated to a certain temperature or more by the gas combustion section by closing the carbonization gas flow path of one processing furnace and opening the discharge path. By passing through the retained area, dioxin in exhaust gas can be removed. Further, in one furnace, the waste can be incinerated after being carbonized, and there is no need to transfer the carbonized waste to another treatment means as before.

 Brief Description of Drawings

 FIG. 1 is a flowchart showing an entire configuration of a waste tire processing system according to an embodiment of the present invention.

 FIG. 2 is a schematic plan view of a processing furnace and a melting furnace of the system of the embodiment.

 FIG. 3 is a side view of the processing furnace and the melting furnace of the embodiment.

 FIG. 4 is a schematic plan view of a processing furnace of the system of the embodiment.

 FIG. 5 is an end view taken along line A—A in FIG. 4.

 FIG. 6 is a schematic sectional side view of a processing furnace of the system according to the embodiment.

 FIG. 7 is a schematic rear view of the processing furnace of the system of the embodiment.

 FIG. 8 is an enlarged plan view of a main part of the processing furnace of the system of the embodiment.

 Explanation of symbols

[0039] T tire

 100 processing furnace

 101 frames

102 Refractory 104 Support bracket

105 explosion safety hole

110 Carbonization gas outlet

120 outlet

 130 opening

 140 Lower supply port

141 Lower pipe

150 Upper supply port

151 Upper Pipe

152 Air supply line

152a

 152b trunk

 152c branch pipe

 160 air blower

200 blast furnace

 201 Door

 202 air blower

210 melting chamber

 21 1 Carbonization gas parner

212 Ignition Pana

213 Control Pana

220 holding room

 221 Molten aluminum outlet

222 Control Pana

223 auxiliary wrench

230 Exhaust gas outlet 10 Carbonized gas supply path 320 outlet

 321 On-off valve

 400 lid

 401 frame

 402 Refractory

 403 Hanging bracket

 404 protrusion

 410 motor

 411 sprocket

 415 rotating roller

 416 sprocket

 418 chain

 420 clamping means

 421 Support bracket

 430 wire

 440 pillar members

 441 Information Renole

 450 connecting frame

 460 F Strong frame

 470 counterweight

 500 cooling tower

 600 Bag Filter

 700 sulfur removal equipment

 800 blower

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a flowchart showing the entire configuration of the waste tire processing system according to the embodiment of the present invention. FIG. 2 is a schematic plan view of a processing furnace and a melting furnace of the system of the embodiment. FIG. 3 is a side view of the processing furnace and the melting furnace of the embodiment (however, the exhaust gas outlet of the blast furnace is not shown). 4 to 8 are explanatory views of the processing furnace of the system according to the embodiment. FIG. 4 is a schematic plan view, FIG. 5 is an end view taken along line AA of FIG. 4, and FIG. FIG. 7 is a schematic rear view, and FIG. 8 is an enlarged plan view of a main part.

 First, the entire configuration of the processing system according to the present embodiment will be described. As shown in FIG. 1, the present system is configured to seal a waste tire T that generates carbonized gas from the waste tire T in a sealed state. A plurality of (two in this embodiment) processing furnaces 100 and a smelting furnace 200 (gas burning part) for melting aluminum by using energy obtained by burning the carbonization gas generated in the processing furnace 100; A cooling tower 500 provided downstream of the blast furnace 200 for cooling the exhaust gas discharged from the blast furnace 200, and an exhaust gas power provided downstream of the cooling tower 500 and discharged from the cooling tower 500. A bag filter 600 for removing dust. And a sulfur removing device 700 provided downstream of the bag filter 600 for removing exhaust gas from the bag filter 600 and releasing the sulfur-containing compound to the atmosphere.

 [0043] The sulfur removal device 700 is provided so as to remove the sulfur processed component in the gas by bringing the gas discharged from the bag filter 600 into contact with water, and to discharge the gas to the atmosphere from the discharge port. I have. Further, the bag filter 600 has a filter for removing dust and the like from the gas cooled by the cooling tower 500. Here, in a gas flow path connecting the sulfur removing device 700 and the bag filter 600, a blower 800 for sucking exhaust gas (so that the bag filter 600 side has a negative pressure) is provided on the downstream side.

 [0044] The cooling tower 500 is provided so as to cool the exhaust gas by introducing exhaust gas discharged from the blast furnace 200 into the tower and injecting cold water into the exhaust gas. In the present embodiment, the exhaust gas of about 850 degrees discharged from the blast furnace 200 is provided so as to be rapidly cooled to about 200 degrees by the cooling tower 500.

The blast furnace 200 has a melting chamber 210 for melting aluminum and a melting chamber 210 for melting the aluminum. A holding chamber 220 for holding the molten aluminum is provided.

[0046] The holding chamber 220 is provided with a molten aluminum discharge port 221 for discharging the molten aluminum to the outside, and also for keeping the temperature in the holding chamber 220 at a certain level or higher (850 degrees or higher). Are provided. Here, two parners 222 and 223 are provided, and the control parner 222 mainly used and the auxiliary parner 223 used as auxiliary also serve as power. Both the control parner 222 and the auxiliary parner 223 are heavy oil. Burnaka is also composed.

 Further, the melting chamber 210 has a carbonization gas parner 211 for burning the carbonization gas from each processing furnace 100. The carbonization gas parner 211 corresponds to the number of the processing furnaces 100. There are two. Further, the melting chamber 210 is provided with an ignition parner 212 for igniting the carbonization gas parner 211 and a control parner 213 for maintaining the temperature inside the melting chamber 210 at a certain level or higher (1000 degrees or higher). The ignition parner 212 and the control parner 213 are both constituted by heavy oil burners.

 [0048] In the figure, reference numeral 201 denotes an opening / closing door of the blast furnace 200. Reference numeral 202 denotes an air blower for supplying air to each of the parners 21 1,.

 [0049] The blast furnace 200 and the processing furnace 100 are formed when the waste tire T is processed in the processing furnace 100 after the carbonization and the carbonization gas supply path 310 for supplying the carbonization gas generated in the processing furnace 100 to the blast furnace 200. Exhaust gas to the blast furnace 200. The tip of the carbonized gas supply path 310 is connected to the carbonized gas parner 211, and the carbonized gas is burned in the carbonized gas parner 211. The carbonization gas supply path 310 and the discharge path 320 are each provided in a number corresponding to the number of the processing furnaces 100 (in FIG. 1, the two discharge paths 320 are illustrated as being joined together. However, each discharge path 320 is connected to the melting chamber 220 as shown in FIG.

) o

[0050] Further, both the dry distillation gas supply path 310 and the discharge path 320 are provided with on-off valves 311 and 321. Opening and closing of these on-off valves 311 and 321 are controlled by control means (not shown). More specifically, when the on-off valves 311 and 321 are generated, the on-off valve 311 of the carbonized gas supply passage 310 is opened, and the on-off valve 321 of the discharge passage 320 is closed. After the generation of the carbonization gas, the on-off valve 311 of the carbonization gas supply path 310 is closed and the on-off valve 321 of the discharge path 320 is controlled to open.

 Further, the blast furnace 200 has an exhaust gas discharge port 230 for discharging gas in the furnace to the downstream side. Here, as shown in FIG. Have been.

 [0052] Further, a discharge path 320 for supplying exhaust gas from the processing furnace 100 to the blast furnace 200 is connected to the blast furnace 200 so as to pass through the blast furnace 200 for a predetermined time (2 seconds) or more. In this embodiment, as shown in FIGS. 1 to 3, the discharge path 320 is connected to the upper part of the holding chamber 220 of the blast furnace 200 having a certain distance from the exhaust gas outlet 230 of the holding chamber 220. More specifically, as shown in FIG. 2, the connection ports between the two discharge paths 320 and the holding chamber 220 are arranged such that the distances from the exhaust gas discharge ports 230 of the holding chamber 220 are the same in plan view. The exhaust gas supplied from each discharge passage 320 into the blast furnace 200 is discharged from the exhaust gas outlet 230 of the blast furnace 200 after the same time has passed.

 Next, the configuration of the processing furnace 100 will be described.

 The processing furnace 100 of the present embodiment is one in which the waste tire T is carbonized in the furnace, and then is incinerated (hereinafter, the process of incineration after carbonization is sometimes referred to as “ignition”). is there . As shown in FIGS. 5 and 6, the processing furnace 100 has a furnace body including a frame 101 and a refractory material 102 supported by the frame 101, and the inside of the furnace is surrounded by a refractory material 102 such as a brick. It is configured to be enclosed.

 The refractory 102 is supported by a frame 101 around the refractory. In particular, the refractory constituting the upper wall is provided on an iron plate 103 fixed to the frame 101 as shown in FIG. It is supported by a substantially Y-shaped support bracket 104. Note that such a configuration can be obtained by welding a support fitting 104 to the iron plate 103 and then laminating and solidifying a clay-like refractory on the iron plate 103.

Further, as shown in FIG. 6, the processing furnace 100 includes a carbonization gas outlet 110 for supplying the carbonization gas obtained from the waste tire T to the blast furnace 200 as described above, and a carbonization gas outlet 110 after carbonization. An exhaust port 120 is provided for discharging exhaust gas generated from the waste tire to the holding chamber 220 of the blast furnace 200. That is, the carbonized gas outlet 110 and the outlet 120 are respectively connected to the carbonized gas described above. And a part of the feed path 310 and the discharge path 320.

 In the processing furnace 100, the open / close valves 311 and 321 controlled by the control means as described above are provided at the dry distillation gas outlet 110 and the outlet 120, respectively (in FIG. 6, The illustration of the on-off valve 311 on the carbonized gas outlet 110 side is omitted). In the present embodiment, the dry distillation gas outlet 110 is formed on one side wall of the processing furnace 100 (a side wall facing an opening 130 described later), and the discharge port 120 is provided on the processing furnace 100. It is formed on the upper wall.

 [0056] The processing furnace 100 is provided with air supply means 140, 150 for supplying air into the furnace, and the amount of air supplied by the air supply means 140, 150 is controlled by control means (not shown). ). The processing furnace 100 has a plurality of types of air supply means 140 and 150. Specifically, the processing furnace 100 has a plurality of lower supply ports 140 (a supply of air for dry distillation) for supplying lower side forced air in the furnace. ), And a plurality of upper supply ports 150 (fire-supplying air supply means) for supplying air from the upper side in the furnace.

 Further, the processing furnace 100 is provided with temperature detecting means (not shown) for measuring the temperature inside the furnace, and the control means is controlled by the air supply means 140 and 150 according to the temperature of the temperature detecting means. Adjust the supply of air.

 [0058] The upper supply port 150 is provided on the upper wall of the processing furnace 100. The upper supply port 150 has an upper part that penetrates the refractory 102 and the iron plate 103 as shown in Figs. 5 and 6. One end of the pipe 151 is exposed in the furnace, and the other end of the upper pipe 151 is connected to the air supply line 152. As shown in FIG. 4, the air supply pipe 152 is connected to an air blower 160 and is divided into two main pipes 152a, a main pipe 152b that is branched into three from the main pipe 152a, and a main pipe 152b that is branched from the main pipe 152b. And a branch pipe 152c to which the upper pipe 151 is connected. The main pipe 152a is provided with an on-off valve (not shown) whose opening and closing are controlled by control means (not shown). The on-off valve is controlled to be closed at the time of carbonization and opened at the time of ignition. ing.

The lower supply port 140 is formed below the side wall of the processing furnace 100 as shown in FIGS. 5 and 6, and the lower supply port 140 is provided with the refractory material 102 constituting the side wall. One end of the lower pipe 141 that penetrates is exposed in the furnace. This lower pipe 141 is connected to a lower air supply pipe (not shown), and this air supply pipe is connected to the air blower 160. The air blower 160 controls the amount of supplied air by a control unit. An on-off valve (not shown) is also provided on the lower air supply line, and when the temperature in the furnace reaches a certain temperature or higher, a control means is provided so that the on-off valve is closed. Is controlled by

An explosion safety hole 105 closed by a lid is formed on the upper wall of the processing furnace 100. Further, the processing furnace 100 is provided with an ignition parner 106 for raising the temperature of the waste tire T to a temperature at which the waste tire T can be carbonized. Note that, as the ignition parner 106, a natural gas parner is preferably used. The ignition parner 106 is supplied with air by an air blower 202 that supplies air to the parners 211 of the blast furnace 200. Reference numeral 107 in FIG. 1 denotes a nitrogen gas supply device for supplying nitrogen gas into the furnace in an emergency.

 As shown in FIG. 6, the processing furnace 100 is provided with an opening 130 for carrying the waste tire T into the furnace, and a cover body for closing the opening 130. Has 400. As shown in FIGS. 6 to 8, the lid body 400 is provided so as to move up and down by means of up and down movement means 410, and when it moves to the lower side, it is pressed against the furnace body by clamping means 420. It is provided as follows. Here, the clamp means 420 is supported by a clamp support 421 fixed to the frame 101 of the furnace body.

 The lid 400 is composed of a frame 401 provided in a lattice shape and a refractory 402 attached to the frame 401. It is provided so that the inside of the furnace can be sealed by being pressed! /

 As shown in FIGS. 6 and 7, hanging metal fittings 403 to which wires 430 are attached are fixed to the upper part of the lid 400, and are lifted upward by the wires 430. It is provided to be used.

Further, a column member 440 is fixed to the frame 101 of the furnace main body, and an electric motor 410 as the vertical moving means for lifting the lid 400 upward is provided above the column member 440. Installed. More specifically, a pair of pillar members 440 are fixed to the frame 101 of the furnace main body, and a connection frame 450 is fixed above the pair of pillar members 440. The connecting frame 450 is fixed to the other end of the reinforcing frame 460 having one end fixed to the frame 101 of the furnace body.

Further, as shown in FIGS. 7 and 8, the electric motor 410 and a rotating roller 415 rotated by the electric motor 410 are fixed to the connection frame 450 in a pair on the left and right sides. The pair of left and right rotating rollers 415 are provided in front and rear, respectively, and are rotatably supported by a roller support attached to the connecting frame 450. Here, a sprocket 411 is attached to the output shaft of the electric motor 410, and a sprocket 416 is also attached to the shaft of the rotating roller 415. A chain 418 is wound around the sprockets 411 and 416 to rotate. It is provided to transmit force. Further, the wire 430 is hooked around the outer periphery of the rotating roller 415, and the cover 400 is provided so as to move up and down by the rotation of the rotating roller 415. A counterweight 470 (not shown in FIG. 8) is attached to the other end of the wire 430 so as to be in balance with the lid 400.

 [0066] Further, the lid 400 is provided with projections 404 having a roller force on both sides, and the column member 440 is provided with a guide rail to which the projections 404 can engage as shown in FIG. 441 is provided, and the lid 400 is provided so that the projection 404 is engaged with the guide rail 441 when the lid 400 rises, and the lid 400 can be raised in a stable state. Further, the guide rail 441 is provided at a position where the engagement with the protrusion 404 is released when the lid 400 is located at the lowest position (when it is located at the closed position of the opening 130). When the lid 400 is located at the lowermost position, it is provided so as to be pressed against the furnace main body by the clamping means 420.

 Next, a method of treating a waste tire by the above-described treatment system will be described below.

 First, in one processing furnace 100, the lid 400 is raised, and the waste tire T is carried into the furnace from the opening 130. At the time of carrying in, a large number of waste tires T are carried in from the opening 130 by using, for example, a forklift or the like in a state without being crushed.

After the waste tire T is carried into the furnace, the lid 400 is lowered, and the lid 400 is pressed against the furnace main body side by the clamping means 420 to seal the inside of the furnace. When the lid 400 is moved up and down, the lid 400 is guided by the guide means 441, so that the lid 400 can be moved up and down accurately. After the inside of the furnace is sealed by the lid 400 as described above, air is supplied from the lower supply port 140 while the temperature is raised by the ignition parner 106. The amount of air at the start of this supply is the theoretical amount of air required to incinerate the stored tires 3-4 (the amount of air required for complete combustion is 10).

 When the temperature inside the processing furnace 100 reaches a constant temperature (about 250 ° C.), the force at which the carbonization of the waste tire T is started. The amount of air supplied from the port 140 is controlled to about 0.2-0.3. The ignition parner 106 is turned off after the temperature inside the furnace reaches a certain temperature or higher. Also, the upper supply port 150 is closed at the start of the dry distillation (does not supply air).

 When the inside of the furnace is heated to a certain temperature (for example, 500 ° C.) or more during carbonization, the control means controls the air supply from the lower supply port 140. Specifically, when the temperature reaches a certain level or more, the air supply from the lower supply port 140 is stopped once, and then the expected air volume (theoretical air volume 0.2-0.3) If less air is supplied and the temperature drops below a certain temperature (for example, 500 degrees), the normal operation (air supply with a theoretical air volume of 0.2-0.3) is restarted. Further, when the temperature in the furnace becomes lower than a certain temperature (for example, 250 degrees), the control means supplies more air than the normal operation to the air supply from the lower supply port 140 so that the temperature becomes lower than a certain temperature (for example, 250 degrees). When the above is reached, the normal operation (supply of air with a theoretical air volume of 0.2-0.3) is restarted. It should be noted that the air blower 160 may be provided so as to adjust the air supply amount according to time. As described above, by adjusting the supplied air, the carbonization speed and the carbonization gas amount of the waste tire T can be accurately adjusted.

When the carbonized gas is generated from the waste tire T as described above, the open / close valve 311 of the carbonized gas supply passage 310 is opened and the open / close valve 322 of the discharge passage 320 is closed. As a result, the generated carbonized gas is supplied to the carbonized gas parner 211 of the blast furnace 200 via the carbonized gas supply path 310. Then, the carbonization gas is burned in the carbonization gas parner 211, and the temperature of the melting chamber 210 of the blast furnace 200 can be increased. When the temperature of the melting chamber 210 of the blast furnace 200 becomes lower than a certain temperature, the control parner 213 is ignited to keep the temperature of the melting chamber 210 at a certain temperature (for example, 1000 degrees) or more. The holding room 220 is also The temperature is kept at a certain temperature (for example, 850 degrees) or more by the control parner 222 and the auxiliary parner 223.

 [0074] As described above, when the carbonization gas is burned by the carbonization gas parner 211, the blower 800 provided on the downstream side is turned on. As a result, the blast furnace 200 has a lower pressure than that of the processing furnace 100, so that flashback from the blast furnace 200 to the processing furnace 100 can be prevented.

 [0075] The aluminum melted as described above is taken out of the molten aluminum discharge port 221 through the holding chamber 220.

 After a certain period of time (eg, 12 hours) after the start of the dry distillation, the open / close valve 311 of the dry distillation gas supply passage 310 of the processing furnace 100 is closed, and the open / close valve 322 of the discharge passage 320 is closed. Open. Further, in the other processing furnace 100, the waste tire T is carried into the furnace, and carbonization is started. That is, after the carbonization by one processing furnace 100 is completed, carbonization by the other processing furnace 100 is started. Therefore, the combustion of the carbonization gas in the melting furnace can be continuously performed.

 [0077] As described above, in the processing furnace 100 in which the on-off valve 311 of the carbonization gas supply path 310 is closed and the on-off valve 322 of the discharge path 320 is opened (in the processing furnace 100 after the carbonization is completed), The air supply from the upper supply port 150 as well as the supply port 140 is started. As a result, the amount of air required for incineration can be supplied, and the waste tire T after dry distillation can be completely incinerated. Even when the upper supply port 150 is closed by oil or the like at the time of dry distillation, since the supply port 150 is provided downward, the oil or the like can be easily removed by the supplied air pressure. .

 [0078] The exhaust gas generated when the waste tire T is ashed is discharged to the holding chamber 220 maintained at a certain temperature or higher through the discharge path 320. The exhaust gas discharged into the holding chamber 220 is discharged from the exhaust gas outlet 230 together with the other exhaust gas in the blast furnace 200. Since the connection port of the discharge path 320 is separated from the exhaust gas outlet 230 by a certain distance or more, the exhaust gas stays in the holding chamber 220 maintained at a certain temperature or more for a certain time or more.

[0079] The exhaust gas discharged from the exhaust gas outlet 230 is rapidly cooled to about 200 degrees in the cooling tower 500, and then the dust is removed by the bag filter 600. Therefore, after the sulfur-containing compound is removed, it is released to the atmosphere. For this reason, this treatment system discharges gas into the atmosphere with a very small amount of dioxin and sulfur conjugate remaining.

 After the incineration as described above is completed and the temperature in the furnace becomes equal to or lower than a certain value, the lid 400 of the processing furnace 100 is raised to remove the incinerated waste tire T from the opening 130. After removal, the waste tire T is carried in again as described above, and preparation is made so that the dry distillation can be started after the dry distillation in the other processing furnace 100 is completed. Then, after the carbonization by the other processing furnace 100 is completed, the carbonization as described above is performed.

 [0081] In the present embodiment, the waste tire T is treated by the method described above or by the method described above. However, the present invention is not limited to this, but is within the intended range of the present invention. The design can be changed as appropriate.

 That is, although the system of the above embodiment has been described as a gas combustion unit that uses energy obtained by burning carbonization gas to melt aluminum, the gas combustion unit includes a boiler, a generator, and the like. It is also possible to adopt.

Claims

The scope of the claims  [1] a plurality of processing furnaces that store waste in a sealed state that generates carbonized gas from waste such as tires,  A gas combustion unit that utilizes energy obtained by burning the carbonized gas generated in the processing furnace; and a carbonized gas passage that supplies the carbonized gas from the processing furnace to the gas combustion unit.  The processing furnace is provided with a discharge path for discharging exhaust gas in the furnace, and the discharge path is provided so that the exhaust gas passes through a region maintained at a certain temperature or higher by the gas combustion unit. Yes,  An on-off valve is provided in the carbonized gas flow path and the discharge path.  [2] The processing system according to claim 1, wherein  The treatment system for waste such as tires, wherein the on-off valve is provided close to the inside of the processing furnace.  [3] The processing system according to claim 1 or 2,  A tire or the like, characterized in that a dry distillation air supply means for supplying air to the processing furnace is provided, and the amount of air supplied during the dry distillation by the dry distillation air supply means is controlled by a control means. Waste treatment system.  [4] The processing system according to any one of claims 1 to 3,  An upper supply port for supplying air to the processing furnace is provided at an upper portion of the processing furnace, and air supply from the upper supply port is controlled by control means. Waste treatment system such as tires.  [5] The processing system according to any one of claims 1 to 4, wherein  The exhaust gas discharged from the discharge path is provided so as to pass through a region maintained at a certain temperature or higher by the gas combustion unit and to be cooled downstream thereof. Waste treatment system such as tires. [6] The processing system according to any one of claims 1 to 5, wherein A system for treating waste such as tires, further comprising a suction unit provided downstream of the gas combustion unit for suctioning air in the gas combustion unit downstream. [7] A method for treating waste such as tires in a treatment furnace!  In the processing furnace, waste gas is generated in a sealed state with waste,  In the processing furnace, the generated carbonized gas is transferred to a gas combustion section via a carbonized gas flow path, and is burned to use enoenergies for IJ.  After a certain period of time, the dry distillation gas flow path of the processing furnace is closed and the exhaust path is opened to allow the exhaust gas to pass through a region maintained at a certain temperature or higher by the gas combustion unit and to be discarded in another processing furnace. Generate dry distillation gas in a sealed state,  A method for treating waste such as tires, characterized in that carbonized gas generated in the other processing furnace is burned in a gas combustion section through a carbonized gas flow path to utilize energy.  [8] The processing method according to claim 7, wherein  A method for treating waste such as tires, wherein the amount of air supplied to the treatment furnace during carbonization is controlled by control means. [9] The processing method according to claim 7 or 8, wherein  After the carbonization, a method for treating waste such as tires, wherein air is supplied from an upper supply port provided in an upper part of the processing furnace. [10] The processing method according to any one of claims 7 to 9, wherein  A method for treating waste such as tires, wherein the exhaust gas discharged from the discharge passage is passed through a region maintained at a certain temperature or higher by the gas combustion unit and cooled downstream.  [11] The processing method according to any one of claims 7 to 10, wherein  A method for treating waste such as tires, wherein air in the gas combustion section is sucked by suction means from a downstream side of the gas combustion section. [12] A furnace for treating waste such as tires that generates carbonized gas from wastes such as tires, provided with a carbonized gas outlet for supplying carbonized gas and an outlet for discharging exhaust gas. Together, An on-off valve for opening and closing the flow path of the carbonized gas sending / outlet and the outlet is provided. A waste treatment furnace for tires and the like, characterized in that:  [13] The processing furnace according to claim 12, wherein  Tire air disposal means for supplying air into the furnace is provided, and disposal of tires and the like is characterized in that the amount of air supplied during carbonization by the carbonization air supply means is controlled by control means. Furnace for processing objects. [14] The processing furnace according to claim 12 or 13, wherein  An upper supply port for supplying air is provided at an upper part in the furnace, and the air supply from the upper supply port is controlled by control means, and the waste such as tires is characterized in that: Processing furnace. [15] The processing furnace according to any one of claims 12 to 14, wherein It has an opening for carrying waste into the furnace and a lid for closing the opening, and the lid is provided slidably with respect to the furnace main body, and is provided by a clamp means. A furnace for treating waste such as tires, which is provided so as to be pressed against the furnace body. [Figure 1]