JPH0940179A - Gas carrier - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the object to be conveyed is in a state in which an easily gas-carrying substance and a difficult gas-carrying substance are mixed, such as incineration residue, even if the substance is in the carrying state, (EN) A gas transfer device that separates from an easy gas transfer object and can transfer the easy gas transfer object to a desired transfer end point, and further achieves gas transfer with an extremely simple configuration. [Structure] A starting point side conveying path 11 for guiding an object to be conveyed to a separating section 12 from a conveying starting point, a first conveying path 13 for conveying an easily gas conveyed object separated in the separating section 12 to a conveying end point, and a separating section 12 The second transport path 14 for transporting the separated difficult-gas transport material to the recovery unit 7, and the second transport path 14
Is configured in a tilted posture that is inclined from the horizontal direction,
The lower end side of the first transfer path 13 is connected to the upper end side of the second transfer path 14 to configure the separation part 12 in the vicinity of the connection part, and the suction flow for gas transfer is provided on the transfer end side of the first transfer path 13. The suction mechanism 16 for inducing

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas transfer device for transferring an object to be transferred, which is made of solid particles, from a transfer start point to a transfer end point by gas.

[0002]

2. Description of the Related Art Conventionally, in this type of gas transfer device, the transferred object is composed of particles having a granularity within a certain range, and the total amount of transferred object is from the starting point to the ending point. It is configured to be transported.

[0003]

However, as an object to be conveyed, which is made of solid powder or granules for which gas is desired to be conveyed,
In some cases, it may be necessary to separate only the easy-to-gas carrier from the transferred object in a state where the easily-to-be-carried easy-to-carry carrier and the difficult-to-carry difficult-to-carry carrier are mixed to carry the gas to the end point. is there. An example of such transportation is a case where the incineration residue produced by the refuse incineration process in the refuse incinerator is guided to the melting furnace for the melting process. Conventionally, in such a transport system, separation of clinker, can, metal solids, stones, etc. is carried out by a mechanical separation device such as a dedicated sieve, and the residue other than the above is introduced into a melting furnace by a conveyor or the like. Was there. Examples of easy-gas carriers contained in the incineration residue include incineration ash, and as difficult-gas carriers, relatively large-sized clinker, can, etc. Unsuitable metal solids, stones and the like can be mentioned. It can be said that such an easy-gas carrier and a difficult-gas carrier are carriers having different gas-transporting properties, but in the case of a powder or granular material having the same specific gravity and shape, the gas-resistant carrier becomes difficult as the particle size increases. It becomes transportable. Further, for those having the same shape and particle size, the larger the specific gravity is, the more difficult the gas is to be transported. When trying to introduce these from the ash pit provided in the incinerator to the melting furnace by gas transport, which is a relatively simple and useful transport technology, the incinerator ash is separated from the incinerator ash while separating the above-mentioned difficult-to-gas transport products. Need to lead to. However, heretofore, there has been no implementation of both the separation function and the gas transfer function with a relatively simple mechanical structure, and this can be achieved only with a relatively complicated and expensive device system. Fig. 3 shows the configuration of a conventional waste incineration residue separating / transporting system. As shown in the figure, the system includes a separation hopper 113 having a sieve 112 on the carry-out side of a supply conveyor 111 that supplies raw materials such as incineration residue 200.
And a vibration feeder 1 on the discharge side of the hopper 113.
It was equipped with 14 grade | etc., And guided the easy-gas conveyance material which has incineration ash as a main component to the predetermined part (the hopper 116 in the case shown in FIG. 3). Further, the separated substance separated by the sieve 112 is
Separately, a structure is adopted in which a predetermined stacking unit 115 performs a stacking process. In this structure, in addition to the above problems, it is necessary to use a sieve that is relatively clogged, so there is a problem of clogging, and incineration residue easily wears the wire mesh of the sieve, causing problems in the transport system. There was a problem that it was easy. Therefore, an object of the present invention is that even if the transported object is in a state where the easily gas-transported material and the difficult-gas-transported material are mixed, such as incineration residue, it is difficult to carry in the transportation state. In addition to separating the gas carrier from the easy gas carrier, the easy gas carrier can be transported to the desired transport end point.
An object of the present invention is to obtain a gas transfer device that can achieve gas transfer with an extremely simple structure.

[0004]

In order to achieve this object, the characteristic structure of the gas transfer device according to claim 1 according to the present invention is that an object to be transferred is an easy gas transfer object and a difficult gas transfer object. When a gas carrier is included, a starting-side carrier path that guides the transferred object from the carrier start point to the separation unit, a first carrier path that carries the easily gas-carried object separated in the separation unit to the carrier end point, and a separation unit And a second transport path for transporting the difficult-to-gas transported material separated to the collecting section, the second transport path is configured in an inclined posture inclined from the horizontal direction, and the first transport path is provided on the upper end side of the first transport path. By connecting the lower end side of the conveying path, the vicinity of the connecting portion is configured as a separating portion, and the conveying end point side of the first conveying path is
There is a suction mechanism for inducing a suction flow for gas transportation. Further, in the characteristic configuration of the gas transfer device according to claim 1, the starting point side transfer path is connected to an intermediate portion of a single straight pipe that is arranged to be inclined with respect to the horizontal direction,
The vicinity of the connection portion is configured as the separation portion, the straight pipe portion positioned below the separation portion is used as the second transport path, and the straight pipe portion positioned above the separation portion is used as the first transport path. It is preferable to configure. This is the characteristic configuration of the gas transfer device according to claim 2 of the present application. Further, in the gas transfer device according to claim 1 or 2, it is further preferable that the suction mechanism is provided with a flow rate setting mechanism capable of setting the flow rate of the suction flow. This is a characteristic configuration of the gas transfer device according to claim 3 of the present application. further,
In the gas transfer device according to claim 1, 2, or 3, it is preferable that the transferred object is an incineration residue containing incinerated ash as the easy-gas transfer object. This is a characteristic configuration of the gas transfer device according to claim 4. The actions and effects thereof are as follows.

[0005]

That is, in the gas transfer device according to the first aspect of the present application, the transferred object is transferred to the separation section via the starting side transfer path while the easy-gas transferred object and the difficult-gas transferred object are mixed. Come on. Then, of the transported objects that have reached the separation unit,
The easily-gas-transported material, which facilitates gas transport, is guided to the transport end point by riding on the gas-transport flow in the first transport path generated by the suction mechanism. On the other hand, the difficult-to-gas carrier material falls downward in the inclined second carrier path and is recovered by the recovery unit. Here, the second transport path is configured to be inclined with respect to the horizontal direction, and the suction mechanism is located on the transport end point side of the first transport path, thereby achieving both the above-described separation function and transport function. be able to. Further, in the gas conveying device according to claim 2 of the present application, the starting side conveying path is connected to the intermediate portion of the single straight pipe, and the portion above the connecting portion is the above-mentioned first conveying passage and the lower side. Is the second part
It is configured as a transport path. As a matter of course, this straight pipe is disposed so as to be inclined with respect to the horizontal, and can perform the above-mentioned separating function and carrying function. Furthermore, since the first transport path and the second transport path can be configured by using only a single straight pipe, the configuration is simple and problems such as retention and clogging of transported objects do not occur. Further, in the gas transfer device according to claim 3 of the present application, the suction mechanism is provided with a flow rate setting mechanism capable of setting the suction flow rate. As described above, basically, it is possible to guide the easily gas-carrying object toward the end point of the carrier and the difficult-gas-carrying object to the recovery part by the suction flow, but the object to be conveyed to the apparatus is transferred. The nature of changes. The easy gas carrier and the difficult gas carrier in the device of the present application are distinguished from each other depending on the flow rate of the suction flow. Therefore, in the gas transfer device according to this section, for example, when a small amount of small metal solids is contained in light ash that is relatively easy to transfer as an object to be transferred, the suction flow rate is set to be low, Efficiently separates and transports only ash. On the other hand, when ash, which is relatively heavy as a material to be transported, contains relatively large-sized stones, the suction flow rate is set to a large amount for efficient separation and transportation. That is, by this flow rate setting mechanism, the flow rate of the suction flow can be set to a flow rate at which an easily gas-carrying object can be carried by a gas, and a difficult-gas-carrying object cannot be carried, and the separation and the carrying of the carried object can be carried out well, It can be done. Furthermore, in the gas transfer device according to claim 4, when handling incineration residue, incinerator ash or the like as an easily gas transfer material that can easily transfer gas is separated from the above-mentioned clinker, stone, canister, etc. , Leading to, for example, a melting furnace,
It can be used for a predetermined purpose.

[0006]

Therefore, even if the transported object is in a state in which the easily gas-transported material and the difficult gas-transported material are mixed, such as incineration residue, the transported object is changed to the transportation state. Therefore, it is possible to obtain a gas transfer device that can separate the difficult-to-gas transferred product and can transfer the easily-transferred gas to the desired transfer end point. Here, when the solid powder and granules are separated from the exhaust gas containing the solid powder and granules, and only the exhaust gas is compared with a cyclone that sends the lower side of the conveyance, the cyclone mainly separates solid powder by centrifugal force. The present application is different in that the present invention basically separates the particles, and the present invention basically separates the particles depending on the conveying ability of the suction flow. And
The structure of the present application is remarkably simple. When the configuration according to claim 2 is adopted, the first straight pipe is used for the first,
Since the second transport path is configured, the device configuration is greatly simplified, maintenance is easy, and problems such as clogging are unlikely to occur. Furthermore, when the configuration according to claim 3 is adopted, the desired separation, while appropriately setting the flow rate of the suction flow according to the state of the transported object,
The transport function can now be demonstrated. Claim 4
When adopting the configuration related to, it became easier to handle the incineration residue.

[0007]

EXAMPLE A case where the gas transfer device 3 of the present application is used to transfer an incineration residue generated in the refuse incinerator 1 from the incinerator 1 to the melting furnace 2 will be described with reference to FIG. In the case of this example, the refuse incineration residue as the transported object is put into the entrance 5 part of the device (this part is substantially the starting point of the transfer) by the ash conveyor 4 and, after passing through the device, the clinker and the can. And the like, a second recovery unit 7 for recovering small solids such as metals and stones, and a hopper 8 for transporting and recovering incineration ash and the like to be charged into the melting furnace 2.
(This part is substantially the end point of the conveyance) are separated and conveyed and collected respectively.

In more detail, the structure of the apparatus will be described below.
A description will be given along the moving route of the refuse incineration residue that is the transported object. As shown in FIG. 1, the gas transfer device 3 includes a charging path 9,
The separating device 10, the starting-side conveying path 11 configured as a descending inclined path, the separating section 12, the first conveying path 13, and the hopper 8,
It is provided along the ash transport route. The first recovery unit 6 is provided below the separating device 10. Below the separation unit 12, the above-mentioned second recovery unit 7 is provided via the second transport path 14. Here, the second recovery unit 7
Is configured as a closed box as shown in the figure,
Small solids such as metals and stones are collected on the bottom side. Further, a gas intake port 15 is provided in this portion in addition to the second transfer passage 14, and this gas transfer device 3
The suction mechanism (specifically, the suction blower 16) provided in the
A carrier flow across the second carrier path 14, the first carrier path 13, and the suction blower 16 is induced. The suction blower 16 is equipped with a damper 16a for setting the flow rate.
The transport flow rate by 6a is such that incineration ash, which is the above-mentioned easy-gas transport product, in the first transport path 13, a small-diameter clinker, stone,
The amount is set so that it can be separated from metal or the like and conveyed to the hopper 8 side through this path 13. Therefore, this damper 16a
Is a flow rate setting mechanism. As such a flow rate setting mechanism, a rotation speed setting mechanism of the suction blower 16 (not shown)
Also plays this role. Here, instead of the suction blower 16, a blower type blower, for example, A in FIG.
It is also possible to provide it in a part. However, when this structure is adopted, there may be a problem that the transportation state in the starting point side transportation path 11 becomes unstable, and dust or the like contained in the refuse incineration residue is blown out of the apparatus. The suction type is preferable.

The first conveying path 13 is provided on the upper side of the separating section 12, and the vertically enlarged cylindrical portion 18 having the back filter 17 is provided on the conveying end point side located on the upper side. . The suction blower 16 is provided downstream of the bag filter 17. A hopper 8 connected to the melting furnace 2 is provided at a lower position of the vertically enlarged cylindrical portion 18. As shown in the figure, the above-described first transport path 13 and second transport path 14 are configured as specific portions in a single straight pipe 100 that is arranged so as to be inclined with respect to the horizontal direction. The starting side conveying path 11 is connected to an intermediate portion of the single straight pipe 100, and the vicinity of this connecting portion is configured as a separating portion 12. Therefore, the separation unit 1
The straight pipe portion located below 2 is configured as the second transport path 14, and the straight pipe portion located above the separation unit 12 is configured as the first transport path 13.

The operation when the refuse incineration residue is put into the gas transfer device of the present application will be described below. When the gas transfer device 3 is in operation, the suction blower 16 is maintained in operation. The waste incineration residue introduced from the gas transfer device inlet 5 is dropped and dispersed on the separation device 10,
Large-sized clinker, can, etc. are recovered by the first recovery unit 6.
The passing matter that has passed through the separation device 10 is guided to the separation unit 12 via the starting point side transport path 11. Among the transported objects that have reached the separation unit 12, the incinerated ash or the like, which is easily transported by gas, is transferred to the first transportation path 13
To reach the vertically enlarged cylindrical portion 18. Here, the relatively heavy incinerated ash falls and accumulates in the hopper 8. On the other hand, very fine dust, etc.
7 is supplemented. Further, in the separating unit 12, a relatively heavy gas, such as metal or stone, which is a small granular material but relatively heavy, falls through the second conveying path 14, and the second collecting unit 7
Will be collected. In addition, incineration ash and the like adhering to such metals and stones are also separated from the metals and stones when they fall, so that the apparatus of the present invention can exhibit a sufficient separation function.

[Other Embodiment] Another embodiment of the present application will be described below. (A) In the above-mentioned embodiment, when treating the refuse incineration residue, the separation device 1 is installed at the inlet of the starting side transport path 11.
Although the gas transfer device is configured by including 0, if it is difficult to mix a large clinker, a can, or the like, the gas transfer device can be configured as shown in FIG. The illustrated example is an example in which the system corresponding to the above-described conventional technique is configured. In the case of this example, after the waste incineration residue is put into the raw material receiving hopper 21, it is cut into a fixed amount by the vibrating feeder 22 and sent to the starting point side conveying path 11 arranged in the vertical direction. The lower end of the transport path 11 serves as a separating section 12 as in the above-described embodiment. Then, this separating unit 12
The pipe portion located at the lower portion constitutes the second transport passage 14, and the pipe portion located at the upper portion constitutes the first transport passage 13. The second transport path 14 is arranged so as to be inclined from the horizontal direction. At the bottom of the second transport path 14, the separated material receiving hopper 2 is provided.
3 is provided, and a hopper 8 having a bag filter 17 is provided downstream of the first transport path 13. Also in this case, a suction blower 16 for carrying suction and a damper 16a for setting the flow rate are provided. Further, a vibrating device 24 is provided on the upper side of the second transport path 14, and a structure is adopted to promote the falling of the difficult-gas-transported product that may be deposited on this portion 14 toward the separated product receiving hopper 23 side.

(B) In the above embodiment, both the main parts of the first and second conveying paths are constructed as a part of the straight pipe which is arranged in an inclined manner, but the inclination degrees of both are different. May be. That is, in order to obtain a sufficient gas transfer state in the relationship between the easy gas transfer object and the difficult gas transfer object to be separated, the first transfer path is placed in a relatively gentle inclined posture (relatively horizontal). The two transport paths may be set in a large inclined posture (relatively close to vertical). In this case, by changing the inclination of each path according to the property of the material contained in the material to be transported, it is possible to obtain a transportation structure in which the ability of the suction blower can be sufficiently brought out. (C) In the above embodiment, a separating device was provided at the entrance site of the starting side conveying path to remove large particles. However, in addition to such a separating device, a separating device such as a plate or A mechanical separation device such as a lattice-shaped sieve may be provided. Furthermore, as for this installation position, with respect to the separation part,
It may be located at any position on the upstream side.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a gas transfer device of the present application.

FIG. 2 is a diagram showing another configuration example of the gas transfer device of the present application.

FIG. 3 is a diagram showing a conventional configuration of a waste incineration residue separation / transportation system.

[Explanation of symbols]

 7 Recovery Section 11 Starting Side Transport Path 12 Separation Section 13 First Transport Path 14 Second Transport Path 100 Straight Pipe

Claims (4)

[Claims] 1. A gas carrying device for carrying a gas from a transport starting point to a transport ending point, which is made of a solid powder or granular material, wherein the gas is easily transported to the transported object and is difficult. When a gas carrier is included, a starting point-side carrier path (11) that guides the transferred object from the carrier starting point to the separating unit (12) and the easy-gas carrier that is separated in the separating unit (12) are provided. A first transport path (13) for transporting to the transport end point, and a second transport path (14) for transporting the difficult gas transport product separated in the separation section (12) to a recovery section (7), The second transport path (14) is configured in an inclined posture inclined from the horizontal direction, and the lower end side of the first transport path (13) is connected to the upper end side of the second transport path (14), The vicinity of the connection portion is configured as the separation portion (12), and the first transfer (13) the transport end point of a gas conveying device provided with a suction mechanism for inducing suction flow of gas transport (16). 2. The starting side conveying path (11) is connected to an intermediate portion of a single straight pipe (100) arranged to be inclined with respect to the horizontal direction, and the vicinity of the connecting portion is connected to the separating portion ( 12), the straight pipe portion located below the separating portion (12) is used as the second transport path (14), and the straight pipe portion above the separating portion (12) is formed into the first pipe portion. 2. The gas transfer device according to claim 1, which is configured as one transfer path (13). 3. The gas transfer device according to claim 1, wherein the suction mechanism (16) is provided with a flow rate setting mechanism capable of setting a flow rate of the suction flow. 4. The gas transfer device according to claim 1, wherein the transferred object is an incineration residue containing incinerated ash as the easy-gas transfer object.