CN217584467U

CN217584467U - Anti-coking device at bottom of secondary combustion chamber of hazardous waste incinerator

Info

Publication number: CN217584467U
Application number: CN202220972301.0U
Authority: CN
Inventors: 罗文群; 卞禹; 卞国胜; 朱迪
Original assignee: Nanjing Fenghao Environmental Protection Technology Co ltd
Current assignee: Nanjing Fenghao Environmental Protection Technology Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-10-14
Anticipated expiration: 2032-04-25

Abstract

The utility model discloses a hazardous waste burns burning furnace second combustion chamber bottom anti-coking device relates to and fires burning furnace technical field. Including two combustion chambers, the surface of two combustion chambers is provided with the connector of connecting the rotary kiln, and the bottom surface of two combustion chambers is the vertical plane, and the below of two combustion chamber bin outlet is provided with the shrend mucking machine, and the shrend mucking machine carries the discharged slag of two combustion chamber bin outlet to the stoving case that is located shrend mucking machine bin outlet below, and the inner wall of stoving case is provided with the heating pipe, and the heating pipe can provide steam by heat exchange device for the stoving case provides the heat source, and heat exchange device connects the exhaust port of two combustion chambers even. This dangerous waste incinerator second combustion chamber bottom anti-coking device straightens second combustion chamber bottom to set up the shrend mucking machine in the below, the ash of second combustion chamber directly drops in dragging for the sediment machine like this, the difficult coking in bottom, but the waste heat of recycle high temperature flue gas is dried the slag, and is with low costs with the heat.

Description

Anti-coking device at bottom of secondary combustion chamber of hazardous waste incinerator

Technical Field

The utility model relates to a fire burning furnace technical field, specifically be a hazardous waste burns burning furnace second combustion chamber bottom anti-coking device.

Background

In the hazardous waste treatment industry or the household garbage incineration industry, an incinerator is often used. The incinerator is provided with two combustion chambers, namely a first combustion chamber and a second combustion chamber, a two-stage combustion mode is adopted, the first combustion chamber burns solid, the second combustion chamber burns gas, an inlet of the second combustion chamber is an outlet of the rotary kiln, smoke at an outlet of the rotary kiln enters the second combustion chamber, and when high-temperature smoke at the outlet of the rotary kiln moves towards the cylinder body on the second combustion chamber in the height direction under the action of negative pressure, dust in the smoke and low-melting-point substances in the smoke are melted under the high-temperature condition.

In the prior art, the bottom of the secondary combustion chamber of the incinerator is an inclined surface, so that coking is easy to occur, slag is discharged through a water-cooled slag discharging machine generally, and finally discharged slag generally has high water content, so that the landfill cost of the slag is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coking prevention device at the bottom of a secondary combustion chamber of a hazardous waste incinerator to solve the problem in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a hazardous waste burns burning furnace second combustion chamber bottom anti-coking device, includes the second combustion chamber, the surface of second combustion chamber is provided with the connector of connecting the rotary kiln, the bottom surface of second combustion chamber is the vertical plane, the below of second combustion chamber bin outlet is provided with the shrend mucking machine, the shrend mucking machine carries the discharged slag of second combustion chamber bin outlet to the stoving case that is located shrend mucking machine bin outlet below, the inner wall of stoving case is provided with the heating pipe, the heating pipe can provide steam by heat exchange device and provide the heat source for the stoving case, and heat exchange device even connects the exhaust port of second combustion chamber.

Further, heat exchange device includes the heat exchange tank body, the top inlet end of the heat exchange tank body advances the exhaust port of union coupling second combustion chamber through the flue gas, one side of the heat exchange tank body is provided with the centrifugal fan through intake duct and heat exchange tank body coupling, centrifugal fan's air-out end passes through connecting pipe intercommunication heating pipe, the inside of the heat exchange tank body is provided with the heat exchange board, and the heat exchange board is connected with intake duct and connecting pipe respectively.

Furthermore, the heating pipes are annularly distributed in the inner cavity of the drying box.

Furthermore, the top of stoving case is provided with the feeder hopper that is located the shrend slag extractor bin outlet below, the bottom of stoving case is provided with the row hopper.

Furthermore, the feed hopper extends into the inner chamber of stoving case, the inside of feed hopper is rotated and is provided with first crushing roller and second crushing roller, first crushing roller and second crushing roller are by setting up two opposite motor drive of rotation direction at the feed hopper rear portion.

Compared with the prior art, the utility model provides a hazardous waste burns burning furnace second combustion chamber bottom anti-coking device possesses following beneficial effect:

1. this dangerous waste incinerator second combustion chamber bottom anti-coking device straightens second combustion chamber bottom to set up the shrend mucking machine in the below, the ash of second combustion chamber directly drops in draging for the sediment machine like this, the difficult coking in bottom.

2. The anti-coking device at the bottom of the secondary combustion chamber of the hazardous waste incinerator can recycle the waste heat of high-temperature flue gas, dries the furnace slag and has low heat consumption cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the drying box of the present invention;

fig. 3 is an enlarged schematic view of the utility model at a;

fig. 4 is a side sectional view of the second combustion chamber of the present invention.

In the figure: 1. a second combustion chamber; 2. a connecting port; 3. a water quenching slag extractor; 4. a drying box; 5. a heat exchange tank; 6. a flue gas inlet pipe; 7. a connecting pipe; 8. a centrifugal fan; 9. a feed hopper; 10. a first crushing roller; 11. a second crushing roller; 12. a drive motor; 13. a rotating shaft; 14. stirring blades; 15. a discharge hopper; 16. heating the tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model discloses a hazardous waste burns burning furnace second combustion chamber bottom anti-coking device, including second combustion chamber 1, the surface of second combustion chamber 1 is provided with the connector 2 of connecting the rotary kiln, the bottom surface of second combustion chamber 1 is the straight face, the below of 1 bin outlet of second combustion chamber is provided with shrend mucking machine 3, shrend mucking machine 3 carries the discharged slag of 1 bin outlet of second combustion chamber to the drying cabinet 4 that is located the 3 bin outlet below of shrend mucking machine, the inner wall of drying cabinet 4 is provided with heating pipe 16, heating pipe 16 can provide steam by heat exchange device and provide the heat source for drying cabinet 4, and heat exchange device connects the exhaust port of second combustion chamber 1 even, the end inner wall of drying cabinet 4 still can be provided with the hot plate and assists the stoving.

Specifically, heat exchange device includes the heat exchange tank body 5, the top inlet end of the heat exchange tank body 5 advances the exhaust port of pipe 6 connection two combustion chambers 1 through the flue gas, one side of the heat exchange tank body 5 is provided with the centrifugal fan 8 of being connected through intake duct and the heat exchange tank body 5, the air-out end of centrifugal fan 8 passes through connecting pipe 7 intercommunication heating pipe 16, the inside of the heat exchange tank body 5 is provided with the heat exchange board, and the heat exchange board is connected with intake duct and connecting pipe 7 respectively.

The high-temperature flue gas enters the heat exchange tank body 5 along the flue gas inlet pipe 6, meanwhile, the centrifugal fan 8 is started, cooling air is discharged into a heat exchange plate in the heat exchange tank body 5 from an air inlet duct, the cooling air exchanges heat with the high-temperature flue gas through the heat exchange plate in the heat exchange tank body 5, the high-temperature flue gas flows to a next-stage device from an exhaust port arranged on one side of the heat exchange tank body 5, the heated cooling air becomes hot air and is conveyed to the heating pipe 16 through the connecting pipe 7, and one end of the heating pipe 16 is provided with a discharge pipe.

Specifically, the heating pipes 16 are annularly distributed in the inner cavity of the drying box 4.

Specifically, the top of stoving case 4 is provided with feeder hopper 9 that is located the 3 bin outlet below of water quenching mucking machine, the bottom of stoving case 4 is provided with discharge hopper 15, feeder hopper 9 extends into the inner chamber of stoving case 4, the inside rotation of feeder hopper 9 is provided with first crushing roller 10 and second crushing roller 11, first crushing roller 10 and second crushing roller 11 are by setting up two opposite motor drive of rotation direction at feeder hopper 9 rear portion.

In this embodiment, the cooperation of the first crushing roller 10 and the second crushing roller 11 can crush the large slag to facilitate the subsequent drying, and the discharge hopper 15 is provided with an electromagnetic valve for controlling the open state of the discharge hopper 15.

Specifically, a driving motor 12 is arranged at the top of the drying box 4, an output shaft of the driving motor 12 is fixedly connected with a rotating shaft 13, and a stirring blade 14 is arranged on the surface of the rotating shaft 13.

In this embodiment, the driving motor 12 drives the rotating shaft 13 to rotate, so that the stirring blades 14 can turn over the slag during drying, thereby improving the drying efficiency of the slag.

When the secondary combustion chamber is used, slag generated in the secondary combustion chamber 1 is discharged to the water quenching slag extractor 3, is cooled by water and then is conveyed into the feed hopper 9 of the drying box 4, massive slag can be crushed through the matching of the first crushing roller 10 and the second crushing roller 11, and meanwhile, the heat exchange device can recycle flue gas waste heat to enable the drying box 4 to dry the slag.

To sum up, this dangerous waste incinerator second combustion chamber bottom anti-coking device straightens second combustion chamber 1 bottom to set up the shrend mucking machine in the below, the ash of second combustion chamber 1 directly drops in dragging for the sediment machine like this, and the difficult coking in bottom can recycle the waste heat of high temperature flue gas, dries the slag, and it is with low costs to use heat.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hazardous waste burns burning furnace second combustion chamber bottom anti-coking device, includes second combustion chamber (1), its characterized in that: the surface of two combustion chambers (1) is provided with connector (2) of connecting the rotary kiln, the bottom surface of two combustion chambers (1) is the straight-face, the below of two combustion chambers (1) bin outlet is provided with shrend mucking machine (3), shrend mucking machine (3) are carried two combustion chambers (1) bin outlet exhaust slag to being located stoving case (4) of shrend mucking machine (3) bin outlet below, the inner wall of stoving case (4) is provided with heating pipe (16), heating pipe (16) can provide steam by heat exchange device and provide the heat source for stoving case (4), and heat exchange device even connects the exhaust port of two combustion chambers (1).

2. The bottom anti-coking device for secondary combustion chamber of hazardous waste incinerator according to claim 1, characterized in that: the heat exchange device comprises a heat exchange tank body (5), wherein a smoke outlet of the secondary combustion chamber (1) is connected with a top air inlet end of the heat exchange tank body (5) through a smoke inlet pipe (6), a centrifugal fan (8) connected with the heat exchange tank body (5) through an air inlet passage is arranged on one side of the heat exchange tank body (5), an air outlet end of the centrifugal fan (8) is communicated with a heating pipe (16) through a connecting pipe (7), a heat exchange plate is arranged inside the heat exchange tank body (5), and the heat exchange plate is connected with the air inlet passage and the connecting pipe (7) respectively.

3. The device for preventing coking at the bottom of the secondary combustion chamber of the hazardous waste incinerator according to claim 1, characterized in that: the heating pipes (16) are annularly distributed in the inner cavity of the drying box (4).

4. The device for preventing coking at the bottom of the secondary combustion chamber of the hazardous waste incinerator according to claim 1, characterized in that: the top of stoving case (4) is provided with feeder hopper (9) that are located water quenching mucking machine (3) bin outlet below, the bottom of stoving case (4) is provided with row hopper (15).

5. The device for preventing coking at the bottom of the secondary combustion chamber of the hazardous waste incinerator according to claim 4, characterized in that: the inner cavity of stoving case (4) is extended into in feeder hopper (9), the inside rotation of feeder hopper (9) is provided with first crushing roller (10) and second crushing roller (11), first crushing roller (10) and second crushing roller (11) are by setting up two motor drive that rotate opposite direction at feeder hopper (9) rear portion.

6. The device for preventing coking at the bottom of the secondary combustion chamber of the hazardous waste incinerator according to claim 1, characterized in that: the drying box is characterized in that a driving motor (12) is arranged at the top of the drying box (4), a rotating shaft (13) is fixedly connected to an output shaft of the driving motor (12), and stirring blades (14) are arranged on the surface of the rotating shaft (13).