CN215879210U

CN215879210U - Device for pyrolyzing fly ash dioxin generated in incineration of household garbage at low temperature by using waste heat of brick kiln

Info

Publication number: CN215879210U
Application number: CN202121930587.8U
Authority: CN
Inventors: 彭人勇; 范宏辉; 孙状田
Original assignee: Dongying Resource Research Institute Of Qingdao University Of Science And Technology
Current assignee: Dongying Resource Research Institute Of Qingdao University Of Science And Technology
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-22
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a device for pyrolyzing municipal solid waste incineration fly ash dioxin at low temperature by using waste heat of a brick kiln, and relates to the technical field of waste incineration fly ash disposal. This utilize device of brickkiln waste heat low temperature pyrolysis domestic waste incineration flying ash dioxin, including the flying ash material jar, one side outer fixed surface of flying ash material jar is connected with the conveyer belt, and the one end fixedly connected with vibration flying ash hopper of conveyer belt, the bottom intercommunication of vibration flying ash hopper are connected with the heating metal pipe. This utilize device of brickkiln waste heat low temperature pyrolysis domestic waste incineration flying ash dioxin, through utilizing shale brickkiln waste heat low temperature pyrolysis flying ash desorption dioxin, can be fast effectual handle the dioxin in the flying ash, carry out reasonable utilization to the resource simultaneously, the flying ash after will cooling can be done and made into the brick of baking-free, the brick of baking-free can be regarded as the hole filler to the hole in the existing mine, carries out ecological remediation, has reduced the treatment cost in the flying ash desorption dioxin.

Description

Device for pyrolyzing fly ash dioxin generated in incineration of household garbage at low temperature by using waste heat of brick kiln

Technical Field

The utility model relates to the technical field of waste incineration fly ash disposal, in particular to a device for pyrolyzing domestic waste incineration fly ash dioxin at low temperature by using waste heat of a brick kiln.

Background

The household garbage incineration is an important mode for disposing household garbage and originally storing the household garbage at present, the current investment of a household garbage incineration power generation project is yes, the household garbage can generate a large amount of fly ash in the incineration process, and the fly ash can form dioxin when being cooled at about 300 ℃, so that the household garbage incineration fly ash contains dioxin, 5% -20% of soluble salt, heavy metal oxides such as Cu, Pb, Zn and Cr, and the disposal of the fly ash is mainly concerned with detoxification (dioxin), desalination (dechl-) and heavy metal solidification.

According to the technical specification for controlling pollution of fly ash burned by domestic garbage issued by ecological environment ministry of the people's republic of China at 2019, 10 months and 25 days, before the fly ash is used as a substitute raw material in the production process of non-high-temperature building materials such as baking-free bricks, cement admixture, concrete admixture and the like, the fly ash is subjected to dioxin detoxification pretreatment according to the pollution control technical requirement of dioxin detoxification pretreatment, the leaching concentration of heavy metals of the produced product meets the requirement of GB30760, the produced product enters a domestic garbage landfill site for disposal, is different from the common industrial solid waste landfill of the domestic garbage, has high landfill cost of about 400-inch (1100 yuan)/ton, is limited due to the site, is not accepted in the existing landfill site, needs to meet the requirement of GB16889, enters a cement kiln for cooperative disposal, needs to meet the requirement of GB30485, is eliminated quickly by the new national cement standard 32.5 (R), and has the lowest strength grade of 42.5, the treatment cost is high in the treatment process of the fly ash, and the effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device for pyrolyzing household garbage incineration fly ash dioxin at low temperature by using waste heat of a brick kiln, wherein the fly ash is pyrolyzed at low temperature by using the waste heat of the shale brick kiln to remove the dioxin, so that the dioxin in the fly ash can be rapidly and effectively treated, resources are reasonably utilized, the cooled fly ash can be made into baking-free bricks, and the baking-free bricks can be used as pit hole fillers to carry out ecological restoration on pits of mines, thereby reducing the treatment cost for removing the dioxin from the fly ash.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the device for pyrolyzing the fly ash dioxin generated in the incineration of household garbage at low temperature by utilizing the waste heat of a brickkiln comprises a fly ash material tank, wherein a conveying belt is fixedly connected to the outer surface of one side of the fly ash material tank, a vibration fly ash hopper is fixedly connected to one end of the conveying belt, a heating metal pipe is connected to the bottom of the vibration fly ash hopper in a communicating manner, an insulation box is sleeved on the outer surface of the heating metal pipe, a shale brick kiln is fixedly connected to the bottom of the insulation box, a conveying pipe is fixedly connected to one end of the heating metal pipe, a water cooling camera bellows is sleeved on the outer surface of the conveying pipe, a fly ash temporary storage bin is fixedly connected to one end of the conveying pipe, a water cooling tower is connected to the outer surface of the front side of the water cooling camera bellows in a communicating manner through a hose, an air extracting pump is connected to the outer surface of the rear side of the water cooling camera bellows in a communicating manner through a hose, and an output end of the air pump is connected to a water vapor storage bin in a communicating manner, the water cooling tower is characterized in that the outer surface of one side of the water vapor storage tank is connected to the outer surface of one side of the water cooling camera bellows through a hose in a communicating mode, the top end of the water cooling tower is fixedly connected with a transmission pump, and the output end of the transmission pump is connected to the top of the water cooling camera bellows in a communicating mode.

Further, the top fixedly connected with circulating pump of fly ash material jar, and the input intercommunication of circulating pump is connected in one side surface of steam storage tank to the input of circulating pump is connected with a plurality of shower nozzles through the hose intercommunication.

Further, all rotate between the both sides inner wall of heating tubular metal resonator and be connected with first auger, the pot head of first auger is equipped with the fixed disk.

Furthermore, the top fixedly connected with fixed motor of insulation can, and fixed motor's output also overlaps and is equipped with the fixed disk, two be connected through the belt between the fixed disk.

Furthermore, a second packing auger is rotatably connected between the inner walls of the two sides of the conveying pipe, and a fixed gear is sleeved at one end of the second packing auger.

Furthermore, the top fixedly connected with of steam bin rotates the motor, and the output that just rotates the motor also overlaps and is equipped with fixed gear, two fixed gear intermeshing.

The utility model provides a device for pyrolyzing municipal solid waste incineration fly ash dioxin at low temperature by using waste heat of a brick kiln. The method has the following beneficial effects:

(1) this utilize device of brick kiln waste heat low temperature pyrolysis domestic waste incineration flying dust dioxin through utilizing shale brick kiln waste heat low temperature pyrolysis flying dust desorption dioxin, can be fast effectual handle the dioxin in the flying dust, carries out reasonable utilization to the resource simultaneously.

(2) The device for pyrolyzing the municipal solid waste incineration fly ash dioxin at low temperature by using the waste heat of the brick kiln can manufacture cooled fly ash into baking-free bricks, and the baking-free bricks can be used as pit hole fillers to carry out ecological restoration on existing pits of mines, thereby reducing the treatment cost for removing the dioxin from the fly ash.

Drawings

FIG. 1 is a front perspective view of the present invention;

FIG. 2 is a rear perspective view of the present invention;

fig. 3 is a partial cross-sectional view of the present invention.

In the figure: 1. a fly ash tank; 2. a conveyor belt; 3. vibrating a fly ash hopper; 4. heating the metal tube; 5. a shale brick kiln; 6. a first auger; 7. a water cooling tower; 8. a fly ash temporary storage bin; 9. water cooling the camera bellows; 10. a water vapor storage tank; 11. an air pump; 12. a heat preservation box; 13. fixing a motor; 14. fixing the disc; 15. a transfer pump; 16. a circulation pump; 17. a transport pipe; 18. fixing a gear; 19. rotating the motor; 20. a spray head; 21. and a second packing auger.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1-3, the present invention provides a technical solution: the device for pyrolyzing the fly ash dioxin incinerated by the household garbage at low temperature by utilizing the waste heat of a brickkiln comprises a fly ash charging bucket 1, wherein the outer surface of one side of the fly ash charging bucket 1 is fixedly connected with a conveyer belt 2, one end of the conveyer belt 2 is fixedly connected with a vibration fly ash hopper 3, the bottom of the vibration fly ash hopper 3 is communicated and connected with a heating metal pipe 4, the outer surface of the heating metal pipe 4 is sleeved with an insulation box 12, the bottom of the insulation box 12 is fixedly connected with a shale brick kiln 5, one end of the heating metal pipe 4 is fixedly connected with a conveying pipe 17, the outer surface of the conveying pipe 17 is sleeved with a water cooling camera bellows 9, one end of the conveying pipe 17 is fixedly connected with a fly ash temporary storage bin 8, the outer surface of the front side of the water cooling camera bellows 9 is communicated and connected with a cooling tower 7 through a hose, the outer surface of the rear side of the water cooling camera bellows 9 is communicated and connected with an air pump 11 through a hose, and the output end of the air pump 11 is communicated and connected with a water vapor storage bin 10, the outer surface of one side of water vapor storage tank 10 passes through hose intercommunication and connects in the outer surface of one side of water-cooling camera bellows 9, and the top fixedly connected with transmission pump 15 of cooling tower 7, and the output intercommunication of transmission pump 15 connects in the top of water-cooling camera bellows 9.

In this embodiment: the fly ash charging bucket 1 is used for storing and primarily treating fly ash, the conveying belt 2 is arranged for conveying fly ash, the vibrating fly ash hopper 3 is arranged for storing and conveying fly ash, and vibration is arranged to facilitate the fly ash to enter the next treatment step, the heating metal pipe 4 is used for conveying, the heat insulation box 12 is arranged for preserving temperature, dioxin is treated by high temperature, the shale brick kiln 5 is arranged for reasonably utilizing heat, the fly ash is pretreated by finding a heat source of 800-1000 ℃ because the dioxin is liquefied at 305 ℃, gasified at 460 ℃, decomposed at 500 ℃ and completely decomposed at 800 ℃ in 21S, the temperature of one section of the shale brick kiln 5 is 970 ℃, the top temperature of the shale brick kiln 5 can be reasonably utilized, the outer diameter of the heating metal pipe 4 is 400 mm and is 1400 ℃ resistant, the conveying pipe 17 is arranged for conveying the treated fly ash, the setting of aspiration pump 11 is used for collecting vapor, the setting of water cooling camera bellows 9 is used for carrying out the water-cooling to the flying dust after handling, cooling tower 7 is used for cooling the hot water behind the flying dust and recycles, vapor storage tank 10 is used for collecting and storing vapor, the setting of transfer pump 15 is used for the transmission and the recycling of water resource, conveyer belt 2, the structure and the principle of aspiration pump 11 and transfer pump 15 belong to prior art, do not describe in detail here, its model can be selected according to the in-service use condition.

Specifically, the top of the fly ash bucket 1 is fixedly connected with a circulating pump 16, the input end of the circulating pump 16 is connected to the outer surface of one side of the water vapor storage tank 10, and the input end of the circulating pump 16 is connected with a plurality of nozzles 20 through hoses.

In this embodiment: the setting of circulating pump 16 is used for the transmission circulation to the water resource, and a plurality of shower nozzles 20 are located the last inner wall of fly ash material jar 1, and for the slope form setting, and the setting of shower nozzle 20 is used for watering the fly ash in the fly ash material jar 1, and water is the dense water of cooling tower, avoids the dense water to arrange outward, and cyclic utilization simultaneously, circulating pump 16's structure and principle belong to prior art, do not describe in detail here, and its model can be selected according to the in-service use condition.

Specifically, all rotate between the both sides inner wall of heating tubular metal resonator 4 and be connected with first hank dragon 6, the pot head of first hank dragon 6 is equipped with fixed disk 14.

In this embodiment: the first auger 6 is arranged for conveying fly ash, the fly ash can be uniformly heated through the first auger 6, and the fixed disc 14 is arranged for connection.

Specifically, the top end of the heat preservation box 12 is fixedly connected with a fixed motor 13, the output end of the fixed motor 13 is also sleeved with a fixed disc 14, and the two fixed discs 14 are connected through a belt.

In this embodiment: the fixed motor 13 is configured to provide a rotational force, the fixed disk 14 is configured to transmit the power of the fixed motor 13 to rotate the first auger 6, and the structure and principle of the fixed motor 13 are not described in detail herein, and the type thereof can be selected according to actual use conditions.

Specifically, a second packing auger 21 is rotatably connected between the inner walls of the two sides of the conveying pipe 17, and a fixed gear 18 is sleeved at one end of the second packing auger 21.

In this embodiment: the second auger 21 is arranged for transmitting the treated fly ash, and the fixed gear 18 is arranged for connection.

Specifically, the top end of the water vapor storage tank 10 is fixedly connected with a rotating motor 19, the output end of the rotating motor 19 is also sleeved with a fixed gear 18, and the two fixed gears 18 are meshed with each other.

In this embodiment: the arrangement of the rotating motor 19 provides rotating force, the rotation of the rotating motor 19 can be transmitted through the arrangement of the fixed gear 18, the second packing auger 21 rotates, the structure and the principle of the rotating motor 19 belong to the prior art, detailed description is omitted, and the type of the rotating motor can be selected according to actual use conditions.

When the fly ash storage bin is used, a vehicle pulls fly ash to enter a plant area and send the fly ash to a fly ash storage tank 1, the fly ash is sent to a vibration fly ash hopper 3 in a closed environment through a conveyer belt 2, the fly ash enters a heating metal pipe 4 through the lower end of the vibration fly ash hopper 3, at the moment, a fixed motor 13 rotates to drive a fixed disk 14 to rotate, a first auger 6 rotates through transmission between the two fixed disks 14 so as to drive the fly ash to move, the fly ash is conveyed forwards at a certain speed, at the moment, the fly ash passes through an insulation box 12 on a shale brick kiln 5, dioxin in the fly ash is decomposed into carbon dioxide and water in a high-temperature section of 800-, cooling the fly ash through reverse water intaking, hot water after the cooling passes through the hose and cools off in getting into cooling tower 7, and vapor passes through aspiration pump 11 and enters into steam storage tank 10, and refrigerated vapor passes through the hose and enters into cooling tower 7, through transfer pump 15, can make cooling tower 7's water resource part enter into water cooling camera bellows 9, and the circulation uses, can take out dense water in cooling tower 7 through circulating pump 16 and mix in fly ash material jar 1 and spray through shower nozzle 20 and recycle.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Utilize device of brickkiln waste heat low temperature pyrolysis domestic waste incineration flying ash dioxin, including flying ash bucket (1), its characterized in that: the outer fixed surface of one side of fly ash material jar (1) is connected with conveyer belt (2), the one end fixedly connected with vibration fly ash hopper (3) of conveyer belt (2), the bottom intercommunication of vibration fly ash hopper (3) is connected with heating metal tube (4), the surface cover of heating metal tube (4) is equipped with insulation can (12), and the bottom fixedly connected with shale brick kiln (5) of insulation can (12), the one end fixedly connected with transport pipe (17) of heating metal tube (4), and the surface cover of transport pipe (17) is equipped with water cooling camera bellows (9), the one end fixedly connected with fly ash temporary storage bin (8) of transport pipe (17), the front side outer surface of water cooling camera bellows (9) is connected with cooling tower (7) through the hose intercommunication, the rear side outer surface of water cooling camera bellows (9) is connected with aspiration pump (11) through the hose intercommunication, and the output intercommunication of aspiration pump (11) is connected with steam bin (10), one side surface of steam bin (10) passes through the hose intercommunication and connects in one side surface of water-cooling camera bellows (9), the top fixedly connected with transmission pump (15) of cooling tower (7), and the output intercommunication of transmission pump (15) is connected in the top of water-cooling camera bellows (9).

2. The apparatus for low-temperature pyrolysis of fly ash dioxin from incineration of household garbage by using waste heat of brick kilns as set forth in claim 1, wherein: the top fixedly connected with circulating pump (16) of fly ash material jar (1), and the input intercommunication of circulating pump (16) is connected in one side surface of steam storage tank (10) to the input of circulating pump (16) is connected with a plurality of shower nozzles (20) through the hose intercommunication.

3. The apparatus for low-temperature pyrolysis of fly ash dioxin from incineration of household garbage by using waste heat of brick kilns as set forth in claim 1, wherein: all rotate between the both sides inner wall of heating tubular metal resonator (4) and be connected with first auger (6), the pot head of first auger (6) is equipped with fixed disk (14).

4. The apparatus for low-temperature pyrolysis of fly ash dioxin from incineration of household garbage by using the waste heat of brick kilns as set forth in claim 3, wherein: the top fixedly connected with fixed motor (13) of insulation can (12), and the output of fixed motor (13) also overlaps and is equipped with fixed disk (14), two be connected through the belt between fixed disk (14).

5. The apparatus for low-temperature pyrolysis of fly ash dioxin from incineration of household garbage by using waste heat of brick kilns as set forth in claim 1, wherein: the conveying pipe is characterized in that a second packing auger (21) is rotatably connected between the inner walls of the two sides of the conveying pipe (17), and a fixed gear (18) is sleeved at one end of the second packing auger (21).

6. The apparatus for low-temperature pyrolysis of fly ash dioxin from incineration of household garbage by using the waste heat of brick kilns as set forth in claim 5, wherein: the top end of the water vapor storage box (10) is fixedly connected with a rotating motor (19), the output end of the rotating motor (19) is also sleeved with a fixed gear (18), and the fixed gear (18) is meshed with the fixed gear (18).