JPH0914841A - Drying furnace, incineration furnace, and drying/ incineration furnace - Google Patents

Abstract

PURPOSE: To efficiently perform a drying work of wastes, especially organic sludge by a method wherein a rotating furnace body is provided, and the outer periphery of the furnace body is heated. CONSTITUTION: On the left side wall 15 of a drying part 22, a burner is arranged, and an outlet 62 of the burner is located at a left side opening of a rotating drum 14. Around the outlet 62, a square opening 63 is provided as an outlet for an exhaust gas which circulates from a re-combustion cylinder 23. Then, the circulating gas and a high temperature gas being generated from the burner are fed into the rotating drum 14, and sludge being stirred is heated and drie 4. The rotating drum 14 is heated by an exhaust gas from an incineration part 21 from the outer periphery, and the inside is heated by the high temperature gas of the burner and the circulating exhaust gas. By the heating from both the inside and the outer periphery, the drying capability is drastically increased. Further, since the exhaust gas which is completely burnt in the re- combustion cylinder 23 is circulated and recycled, the thermal efficiency is also high. The sludge which is dried and granulated or powdered is discharged from a right side opening of the rotating drum 14.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a drying oven, an incinerator and a drying incinerator. In particular, the present invention relates to a drying furnace, an incinerator and a dry incinerator which are useful for incinerating industrial wastes peculiar to the textile industry, among them sludge, yarn waste, waste cloth and the like containing chemical fibers.

[0002]

2. Description of the Related Art The textile industry is a leading local industry in Ishikawa prefecture. In the textile industry, sludge, lint, waste, etc. are generated as industrial waste. Conventionally, these have been individually incinerated and landfilled.

[0003]

Incineration of the waste is most preferable (unless there is a problem of toxic gas, etc.). This is because incineration destroys (vaporizes) all the combustible parts of the substance, making it the smallest volume. If it is turned into ash, it will be less likely to decompose.

However, the above-mentioned textile industry waste belongs to the category where this incineration is difficult. That is, sludge can be burned if it is dried and appropriately supplemented with combustion, but there has been no device capable of efficiently performing this. The same applies to lint and waste, and there was no device that could incinerate them efficiently without manpower. In particular, those related to chemical fibers, that is, sludge, thread waste, waste cloth and the like containing chemical fibers are more difficult to incinerate because they are dripped and hardened under the grate when heated and melted.

An object of the present invention is to provide a drying furnace capable of efficiently drying waste, especially organic sludge. It is another object of the present invention to provide an incinerator capable of efficiently incinerating wastes, particularly waste including chemical fibers, yarn wastes and the like. Another object of the present invention is to
It is an object of the present invention to provide a dry incinerator capable of consistently processing waste, particularly textile industry waste, from drying to incineration.

[0006]

In order to achieve the above-mentioned object, the drying furnace of claim 1 has a rotating furnace body, and the outer circumference of the furnace body is heated. In the incinerator according to claim 2, below the grate is a sub incineration chamber, the sub incineration chamber is provided with air blowing means for blowing combustion air, and the incineration material dropped from between the grate is The blown air burns in the sub incineration chamber. In the dry incinerator of Claim 3, it has a drying part and an incineration part, The said drying part is equipped with the furnace body which rotates, The outer periphery of this furnace body is heated by the exhaust gas of the said incineration part. The dry incinerator according to claim 4, comprising a drying section and an incineration section, wherein the drying section includes a rotating furnace body, the outer periphery of the furnace body is heated by the exhaust gas of the incinerator, and the incinerator burns. Below the grate is a sub-incineration chamber, the sub-incineration chamber is provided with air blowing means for blowing combustion air, and the incineration material dropped between the grate is the sub-incineration by the blown combustion air. Burns indoors.

In the drying furnace of claim 5, the outer periphery of the furnace body according to claim 1 is heated by the exhaust gas generated in another furnace. According to a sixth aspect of the dry incinerator, there is provided a conveying means for conveying the material to be dried that has been dried in the drying section according to the third or fourth aspect to the incineration section. In the drying furnace according to claim 7, the inside of the furnace body according to claim 1 or 5 is also heated. In the dry incinerator of claim 8, claim 3, claim 4 or claim 6
The inside of the furnace body is heated.

In the drying furnace according to claim 9, organic sludge is put into the furnace body according to claims 1, 5, and 7 as a material to be dried. In the dry incinerator of claim 10, organic sludge is put into the furnace body of claim 3, claim 4, claim 6 or claim 8 as a material to be dried. In the incinerator according to claim 11,
The waste related to the chemical fiber is the incineration object according to claim 2. In the dry incinerator according to the twelfth aspect, the waste related to the chemical fiber is the incineration object according to the third, fourth, sixth, eighth or tenth aspect.

[0009]

In the drying furnace of the first aspect, the furnace body is heated from the outer circumference and rotated. The heating from the outer circumference brings about a sufficient temperature rise of the entire furnace body, and the rotation agitates the material to be dried. The sufficient temperature rise and the agitation are combined with each other to improve the drying efficiency and realize a smooth process flow in which the materials are sequentially dried and discharged if they are sequentially charged. In the incinerator according to the second aspect, below the grate is a sub-incinerator chamber, into which combustion air is blown. There is a burning material to be burned on the grate, and the radiant heat also heats this sub-incinerator. Therefore, even if the material to be incinerated falls from between the grate, combustion continues due to this heat and the blown air, and the incineration continues smoothly.

In the dry incinerator of claim 3, the outer periphery of the rotating furnace body is heated by the exhaust gas of the incinerator. Resources are saved because the exhaust gas is used as a heat source. In addition, a smooth work flow is formed from drying to incineration. In the dry incinerator of claim 4, as in the incinerator of claim 2, efficient combustion is realized. Since the furnace body is heated from the outer periphery by the exhaust gas, more efficient drying is realized. Also in the drying furnace of claim 5, the exhaust gas is effectively used for heating the outer circumference of the furnace body.

In the dry incinerator of the sixth aspect, the dried material to be dried is automatically conveyed from the drying section to the incineration section. The drying process and incineration process are executed as a series,
Waste treatment will be carried out more smoothly. In the drying furnace of claim 7 or the drying incinerator of claim 8, the inside of the furnace body is also heated. As a result of heating both the outer circumference and the inner circumference, the drying efficiency is improved, and so to speak, anyone can easily dispose of waste without taking time.

In the drying furnace of claim 9 and the drying incinerator of claim 10, organic sludge is put in as a material to be dried. The furnace body has a high drying efficiency and is particularly suitable for this treatment, and its advantages are fully demonstrated. In the incinerator according to the eleventh aspect and the dry incinerator according to the twelfth aspect, the waste related to the chemical fiber is treated as the incineration target. The drying furnace and the drying incinerator are also effective for this, and their advantages are fully exhibited. In particular, the combination in which the material to be dried is organic sludge and the material to be incinerated is the organic sludge after drying and waste cloth (dry incinerator of claim 12 citing claim 10) does not have an auxiliary combustion material. Also maintains a very stable combustion state and is most useful in terms of efficiency and effective use of resources.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the illustrated embodiments. 1 to 12 show a dry incinerator main body 101 (hereinafter simply referred to as "main body"). FIG. 13 shows the transport mechanism 102. FIG. 14 shows another example of the structure for controlling the discharge amount (weir 103).
Is shown. 2 shows the front of the main body 101, FIGS. 3 and 4 show the right side, and FIG. 5 shows the plane. It should be noted that FIGS. 3 and 4 are originally one sheet. The vapor escape tube 11 and the direct exhaust tube 12 of FIG.
And the chimney 13 is cut at the upper part to obtain the next FIG. FIG. 1 shows a vertical section taken along line (1)-(1) of FIG. FIG. 6 shows a horizontal section taken along line (6)-(6) of FIG. FIG. 7 and FIG. 8 show vertical cross sections as viewed in the direction of arrows (7)-(7) of FIG. This is also one sheet originally, and FIG. 7 is the left side and FIG. 8 is the right side.

FIG. 9 is shown by removing the roller 46 and the bolt 49 for supporting the rotary drum in the same arrow view as FIG. FIG.
Reference numeral 0 indicates the rotary drum 14, the roller 46 and the like by removing the left side wall 15 of the drying portion in the same arrow view as in FIG. 1 (FIGS. FIG. 11 shows a vertical section taken along line (11)-(11) of FIG. FIG. 12 is a detailed view of the combustion air blowing nozzle 16 as viewed in the direction of arrows (12)-(12) of FIG. It should be noted that the portions described in any of the drawings are given the same reference numerals in the other drawings and will not be described again unless necessary. Further, due to the relation of resolution, the iron plate is represented by a single line in the cross-sectional view (thickness is not represented, but is represented in FIGS. 7 to 12 and 14). Further, hatching may be omitted for a fine cross section.

The respective figures will be described below in order. Body 1
01 consists of two blocks, the incineration part 21 and the drying part 22 connected to this (refer to FIGS. 1-5). A re-combustion cylinder 23 is connected to this, and the whole of them is mounted on the frame 20. The internal volume of the incinerator 21 is approximately 1.5 cubic meters, the width is 1.2 m, the depth is 1.1 m, and the central height is approximately 1.4 m, and it is possible to incinerate 10 kg of waste acrylic waste cloth per hour. The drying unit 22 has an inner volume of the rotating drum 14 of 1.4 cubic meters and a diameter of 1 m,
The length is about 1.8 m, and 50 kg of organic sludge of acrylic fiber can be dried per hour. The incinerator 21 is water cooled. The front, rear, left and right side walls 31 to 34 and the roof 35 are double walls made of iron plate, and the water supply pipe 27 is extended from the cis tank 26 arranged on the roof 35 to the lower side of the right side wall 34, through which cooling is performed. Water 28 is supplied.

An escape tank 25 is arranged on the roof 35 (see FIGS. 2 to 5). A vapor escape tube 11 is provided on the upper portion thereof. The internal space of the escape tank 25 communicates with the internal space of the double wall, the cooling water is heated by the heat of the incinerator 21, and the steam generated thereby is released from the escape tube 11 to the outside, so that it is incinerated. The part 21 is cooled. Note that considerable heat is also radiated from the outside of each side wall. The cooling water level is about the middle of the escape tank 25. The cis tank 26 has a ball tap (not shown) built therein, and a water pipe (not shown) is connected to the ball tap. When the water level of the cooling water drops due to evaporation, the ball tap opens and the shortage of water is supplied.

Only the bottom 29 of the incineration section 21 is caster-cast (heat-resistant mortar-clad) (see FIGS. 1 and 3).
Four iron pipes 30 for supporting the grate are arranged slightly above the bottom 29. The inner space of the iron pipe 30 communicates with the inner spaces of the left and right side walls 33 and 34, and the cooling water 28 is also filled therein. The grate 36 is this iron pipe 3
Placed on top of 0. A nozzle 16 for blowing combustion air projects into the fire chamber of the incinerator 21 (see FIG. 6, FIG. 12, etc.). These penetrate the left and right side walls 33 and 34, and are located above the iron pipe 30, and each four from the left and right.
4 from the left and right, and 1 right and left respectively below the iron pipe 30 through the right and left sides of the side wall 31 on the front side. The combustion air is supplied from the blower 24 placed on the roof 35 (see FIGS. 2 to 5, etc.). The air taken in and pressurized here is buffered by the accumulator 37, and is supplied to each nozzle 16 via the supply pipe 38.

A diffuser plate 39 is attached to the tip of the nozzle 16 located above the grate 36 (FIG. 12). The diffuser plate 39 is a steel plate cut out in a circular shape.
The air blown out from 6 is diffused upward or downward in a fan shape. Specifically, the rightmost frontmost nozzle 16 has the diffuser plate 39 attached so as to blow out upward, and the diffuser plate 39 is attached next so as to eject downward. The left side is attached so that the first one blows air downward and the next one is blown upward. Combustion is stabilized by diffusing in a fan shape and ejecting. As a result, the nozzle diameter can be made thicker than in the past, and so to speak, air can be blown in. Therefore, the number of nozzles decreases accordingly,
Manufacturing and maintenance costs are reduced. Reference numeral 17 is an incineration object inlet, and 18 is an ash outlet, and a heating burner 19 is attached to the outlet 18 (FIG. 2).
And others).

A large square opening 42 is provided on the rear side wall 32 of the incinerator 21. The opening 43 of the same size is also provided on the front side wall of the drying unit 22, and these are abutted against each other so that the fire chamber of the incineration unit 21 and the internal space of the drying unit 22 communicate with each other. Each of the side walls, ceiling and floor of the drying unit 22 is caster-cast. The incinerator 21 was water-cooled, but the temperature was lower than that, so casters were used. In the center of the internal space of the drying section 22,
The rotary drum 14 is arranged with the opening facing sideways (FIG. 6 and others). The rotary drum 14 is made of iron, and a stirring blade 44 is provided inside the rotary drum 14 (FIG. 1). A rim 45 is externally fitted and fixed to both ends of the rotary drum 14 (FIG. 6), and this portion is rotatably supported by two left and right rollers 46 (FIGS. 7 and 8). The roller 46 on the left side is supported by an overhanging mount 47 (FIG. 7). Right two rollers 4
6 are each supported by two bolts 49 (FIG. 8).
The bolt 49 is for changing the height of the roller 46, and adjusts the inclination of the rotary drum 14 to the right with this. If the inclination is made steep, the retention time of the sludge in the rotary drum 14 becomes short, and if it becomes loose, the opposite occurs. As shown in FIG. 14, the weir 103 may be arranged in the opening of the rotary drum 14, and the weir 103 may be moved up and down as shown by an arrow 50 to adjust the gap G to control the discharge amount of the dried sludge.

A ring-shaped chain 51 is fixed to the side surface of the left rim 45 of the rotary drum 14 (FIG. 7). A geared motor 52 is arranged on the left outer side of the drying section 22, and a chain sprocket 53 is attached to its output shaft. This meshes with the chain 51, and the rotary drum 1
Rotate 4. When the rotation speed of the geared motor 52 is changed, the rotation speed of the rotary drum 14 is changed. A screw conveyor 54 penetrates the left side wall 15 of the drying unit 22 (FIGS. 7, 13, and 1). Screw conveyor 54
Is for throwing sludge into the rotary drum 14, and the tip 55 is projected from the left opening of the rotary drum 14 to a position slightly inside. The intake 56 of the screw conveyor 54 is at the bottom of the sludge receiving bucket 57 (FIG. 1).
3). The sludge thrown into the bucket 57 is sequentially fed into the rotary drum 14 from here. Reference numeral 58 is a screw driving pulley, which is driven by a V belt (not shown). The amount of sludge input can be adjusted by changing the rotation speed of the screw 59.

A burner 61 is also arranged on the left side wall 15 of the drying section 22 (FIG. 7). Air outlet 62 of burner 61
Is just at the position of the left opening of the rotating drum 14. A square opening 63 is provided around it (FIG. 1). This is the outlet of the exhaust gas recirculated from the reburning cylinder 23,
The recirculated exhaust gas and the high-temperature gas generated by the burner 61 are blown into the rotary drum 14 to heat and dry the agitated sludge. Rotating drum 14 is incinerated part 2 from the outer periphery
It is heated by the exhaust gas of No. 1 and is heated from the inside by the high temperature gas of the burner 61 and the recirculated exhaust gas. By heating from both inside and outside, the drying capacity is significantly enhanced. Further, the exhaust gas completely recycled in the reburning cylinder 23 is recycled for reuse. Therefore, the thermal efficiency is also high.

The dried, granulated or powdered sludge is discharged from the right opening of the rotary drum 14. On the inner surface of the right side wall of the drying section 22, a surrounding wall 64 is provided so as to surround the lower half of the right side opening of the rotary drum 14 (FIG. 11).
The lower part of the surrounding wall 64 extends downward on both sides. A closing plate 66 is attached to this portion and forms a chute 65 in cooperation with the side wall. The lower opening 67 of the chute 65 penetrates the overhanging pedestal 48 and passes through the drying section 22.
It projects to the lower right side of the (Fig. 8). The dried sludge discharged from the rotary drum 14 falls on the first conveyor 69 from here (FIG. 13). The dried sludge is conveyed to the front by the first conveyor 69. Then, it is put into the incinerator 21 via the second conveyor 70 and the third conveyor 71. These three conveyors 69 to 71 form the transport mechanism 102. 7
Reference numerals 2 and 73 are openings and doors for manually extracting the dried sludge (FIG. 3), and 74 and 75 are openings and doors for extracting the ash accumulated at the bottom (FIGS. 3 and 1).

An exhaust opening 81 is provided on the inner side of the drying section 22 (FIGS. 1 and 6 and others). A reburning cylinder 23 is arranged behind the drying unit 22, and the rear side opening 81 is connected to a lower portion of the reburning cylinder 23 via a duct 82.
An opening 83 for exhaust is also provided on the right side wall of the drying unit 22 (FIGS. 8 and 11). The pipe 84 and the exhaust pipe 12 are directly connected to the right opening (FIGS. 2 and 3 and the like).
The pipe 84 is connected to the upper part of the internal space of the reburning cylinder 23. In the middle, the nozzle 4 is directed toward the reburning cylinder 23 side.
1 is provided. Air is supplied to the nozzle 41 from the blower 86 (FIGS. 5 and 3), and the exhaust gas is attracted to the reburning cylinder 23 side by this airflow. The direct stack 12 has a chimney 13
(Fig. 4).

An unillustrated flow rate adjusting damper is inserted in the middle of the pipe 84 and the direct exhaust tube 12. The amount of carbon monoxide, soot, etc. in the exhaust gas differs depending on the incinerated material. Therefore, the opening degree of the damper is changed according to the property to adjust the flow rate to the reburning cylinder 23 and the external discharge amount. As a result, the exhaust gas is completely burned, pollution can be prevented, and the amount of heat for recirculation is increased to improve efficiency. Two burners 87 are attached to the upper and lower parts of the reburning cylinder 23 (FIGS. 1, 3, and 5). From these, high-temperature gas is ejected in the circumferential direction in the re-combustion cylinder 23.
Inside, the exhaust gas swirls counterclockwise, achieving perfect reburn. Then, the reburned exhaust gas is discharged to the outside through the chimney 13.

An exhaust gas recirculation pipe 8 is provided in the middle of the chimney 13.
8 are connected. A nozzle 89 is arranged in the middle of the pipe 88 toward the drying section 22 side (FIGS. 5 and 1), and the air supplied from the blower 91 blows out from this, and the high temperature exhaust gas of the reburning cylinder 23 is discharged. Attract to the drying unit 22 side. Reference numeral 92 is an opening for maintenance, which is used for removing ash accumulated in the reburning cylinder 23.

For example, when incinerating sludge containing chemical fibers and a waste of chemical fibers, the burners 19 and 61 of the incinerator 21 and the dryer 22 are ignited to heat the incinerator 21 and the dryer 22. The screw conveyor 54 and the rotary drum 14 are rotated, and the conveyors 68 to 70 are also activated. Blower 2
4 is also activated to inject combustion air above and below the grate 36. In this state, an appropriate amount of waste is put into the incinerator 21. The waste is heated and begins to burn. Therefore, an appropriate amount of waste is sequentially added to increase combustion. As the combustion progresses, the fibers melt and they drip under the grate 36 and collect on the bottom 29 of the incinerator 21. These are grate 3
6 is heated by radiation from combustion. Combustion air is blown into the bottom of the grate 36. Therefore, the bottom of the grate 36 serves as a sub-incinerator, and the melt continues burning.

The sludge is put into the bucket 57. Sludge is sequentially fed into the rotary drum 14 by the rotation of the screw 59. While being stirred by the rotation of the rotary drum 14,
The slope gradually moves toward the right side opening.
The rotary drum 14 is heated from the inside by the high temperature gas of the burner 61 and the reflux exhaust gas, and is heated from the outer periphery by the exhaust gas of the incinerator 21. Therefore, by the time the right side opening of the rotary drum 14 is reached, the water contained therein is completely evaporated into a smooth, granular powder (as it happens,
Adjust the inclination of the rotating drum 14 to the right, the number of rotations, the amount of sludge input, etc.). The dried sludge falls from the chute 65 onto the first conveyor 68. Then, it is carried to the front and drops onto the next second conveyor 69, and then the third conveyor 70.
It falls on top and is thrown in incineration part 21. Since the water content is completely lost and it is an organic sludge, it burns immediately after being charged, and combustion in the incinerator 21 becomes more active.

When the sludge is kept in a good dry state, and the combustion of the waste on the grate 36 and the combustion of the melt dropped in the sub-incinerator 93 are maintained well, the incinerator 21 of the incinerator 21 is heated. The burner 19 and the burner 61 of the drying unit 22 are stopped. Since air is blown into the bottom of the grate 36, the combustion is still sufficiently sustained. As a result, the waste, which is industrial waste, and the chemical fiber, which has been difficult to incinerate in the past, can be smoothly incinerated. It should be noted that, as a result of the trial production and experiment conducted by the inventors, an extremely good combustion state was maintained, but when the combustion state is poor such that the sludge is almost inorganic, it is better to ignite the burner to assist the combustion. .

A modified example will be described. Only the drying unit 22,
You may make it implement only the incineration part 21. In this case, any heat source may be used to heat the outer circumference of the rotary drum 14 of the drying section 22. For example, a general-purpose burner may be used as a heat source, or exhaust gas of other incinerators, various exhaust gas of a factory, for example, exhaust gas of a blast furnace, and various other heat sources may be used as the heat source for this purpose. It should be noted that it is preferable to use an inexpensive fuel such as exhaust gas instead of a new fuel cost such as a burner. It can be fully effective and saves energy. The material to be dried is not limited to sludge. The drying unit 22 is also useful for drying papermaking waste and various other wet industrial waste and household waste (household waste). The materials to be incinerated are not limited to chemical fibers. It is also useful for things that melt when burned, such as plastic,
Furthermore, it is also useful for general industrial waste and household waste.

[0030]

As described above, in the drying furnace of claim 1, the rotating furnace body is heated from the outer circumference. Therefore, the temperature of the entire furnace body is sufficiently increased, and efficient drying can be performed. Further, the furnace length can be considerably shortened as compared with the conventional one for the same purpose. Therefore, it is possible to reduce the number of installation places, for example, by arranging it horizontally when viewed from the front and arranging it after the incinerator as in the embodiment. In particular, when the exhaust gas generated by another furnace is used for heating the outer circumference of the furnace body of this drying furnace, the resource can be saved. In the incinerator according to the second aspect of the present invention, the sub-incinerator is provided below the grate, and the combustion air is blown into the sub-incinerator. The sub-incinerator chamber is also heated by the radiant heat of the incineration object burning on the grate. By blowing the combustion air into it, even if the material to be incinerated falls between the grate, it is completely burned here. In particular, claim 11
When the material to be burned is a chemical fiber like in the above, even if it hits the bottom of the grate in the past, it hardly burns as it accumulates at the bottom and hardens, but like the present invention, By injecting air, this and radiant heat effectively act to continue combustion, resulting in quick and complete incineration.

In the dry incinerator according to the third aspect, the exhaust gas of the incinerator 21 connected in series heats the outer periphery of the furnace body of the dryer. Resources are saved because the exhaust gas is used as a heat source. In addition, the drying process and the incineration process can be executed together. In the dry incinerator of claim 4, claim 2
As in the case of the incinerator, efficient combustion is realized, and the exhaust gas heats the furnace body in the drying section from the outer periphery. Therefore, a more efficient drying process can be performed.

In the dry incinerator of the sixth aspect, the material to be dried dried in the drying section is conveyed to the incineration section by the conveying means. As a series of drying and incineration processes, so to speak, they can be automatically executed, and smoother waste disposal can be performed. In the drying furnace of claim 7 or the drying incinerator of claim 8, the inside of the furnace body is also heated. As a result of heating both the outer circumference and the inner circumference, the drying efficiency is further improved, and so to speak, anyone can treat industrial waste easily and in a short time. In the drying furnace according to claim 9 and the drying incinerator according to claim 10,
Organic sludge was added as a material to be dried. Although organic sludge is difficult to dry, the drying efficiency of these drying furnaces and dry incinerators has been greatly improved, so even these can be quickly dried and incinerated.

According to the dry incinerator of claim 12, claim 3,
4, 6, 8 or 10 dry incinerators are applied to chemical fiber waste. In the dry incinerator of each of these claims, the drying capacity and the incineration capacity are greatly improved by the respective configurations including the heating of the outer circumference. As a result, in particular, the drying and incineration of the waste related to this chemical fiber can be carried out quickly, smoothly and efficiently. In particular, when the material to be dried is organic sludge and the material to be incinerated is a combination of the material after drying it and waste cloth (dry incinerator of claim 12 of claim 10), the auxiliary combustion material is Even without it, very stable combustion can be performed, and it is possible to carry out batch processing regardless of different types.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view taken along the line (1)-(1) of FIG.

FIG. 2 is a front view showing a dry incinerator main body and the like of an embodiment.

FIG. 3 is a right side view (lower side) showing the dry incinerator main body of the embodiment.

FIG. 4 is a right side view (upper side) showing the dry incinerator main body of the embodiment.

FIG. 5 is a plan view showing a dry incinerator body of an example.

FIG. 6 is a horizontal sectional view taken along line (6)-(6) of FIG.

FIG. 7 is a vertical cross-sectional view (left side) shown by arrows in FIGS. 6 (7)-(7).

FIG. 8 is a vertical cross-sectional view (right side) shown by arrows in FIGS.

9 is a rotary drum support mechanism 104 in the same direction as FIG.
The vertical sectional view which removes and shows.

10 is a left side wall 1 of the drying unit 22 as viewed in the same direction as FIG.
5 is a right side view showing the rotary drum 14, a support mechanism, etc., with 5 removed. FIG.

FIG. 11 is a vertical sectional view taken along line (11)-(11) of FIG.

FIG. 12 is a detailed vertical sectional view of a combustion air blowing nozzle portion as shown by arrows in FIGS. 5 (12)-(12).

FIG. 13 is a plan view showing a transport mechanism.

FIG. 14 is a right side view showing another structural example (103) for controlling the amount of discharged sludge after drying.

[Explanation of symbols]

 14 furnace body (“rotating drum” in the example) 16 air blowing means (nozzle in the example) 21 incinerator (incinerator) 22 drying oven (drying section) 36 grate 93 sub-incinerator 101 dry incinerator 102 transporting means (In the embodiment, the first to third conveyors)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location F26B 23/00 F26B 23/00 A

Claims (12)

[Claims] 1. A drying furnace having a rotating furnace body, the outer circumference of which is heated. 2. A sub-incineration chamber is provided below the grate, and an air blowing means for blowing combustion air is provided in the sub-incineration chamber, and an incineration object dropped from between the grate is blown into the sub-incineration chamber. An incinerator characterized by being combusted in the sub-incinerator chamber with air. 3. A dry incinerator having a drying section and an incineration section, wherein the drying section includes a rotating furnace body, and the outer periphery of the furnace body is heated by the exhaust gas of the incinerator section. 4. A drying section and an incineration section, wherein the drying section includes a rotating furnace body, the outer periphery of the furnace body is heated by the exhaust gas of the incineration section, and the incinerator has a lower grate. The sub-incineration chamber is provided with an air blowing unit for blowing combustion air into the sub-incineration chamber, and the incineration material dropped from between the grate is burned in the sub-incineration chamber by the blown combustion air. A dry incinerator characterized by that. 5. The drying furnace according to claim 1, wherein the outer circumference of the furnace body is heated by exhaust gas generated in another furnace. 6. The dry incinerator according to claim 3 or 4, further comprising a transfer unit that transfers the material to be dried that has been dried in the drying section to the incineration section. 7. The drying furnace according to claim 1, wherein the inside of the furnace body is also heated. 8. The dry incinerator according to claim 3, wherein the inside of the furnace body is also heated. 9. The drying furnace according to claim 1, wherein the material to be dried put into the furnace body is organic sludge. 10. The dry incinerator according to claim 3, wherein the material to be dried put into the furnace body is organic sludge. 11. The incinerator according to claim 2, wherein the material to be incinerated is waste related to chemical fibers. 12. The dry incinerator according to claim 3, claim 4, claim 6, claim 8 or claim 10, wherein the material to be incinerated is waste related to chemical fibers.