CN214862305U

CN214862305U - Waste incineration's exhaust treatment device

Info

Publication number: CN214862305U
Application number: CN202121486283.7U
Authority: CN
Inventors: 王洪
Original assignee: Sichuan Yongchen Environmental Protection Equipment Co ltd
Current assignee: Sichuan Yongchen Environmental Protection Equipment Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-11-26
Anticipated expiration: 2031-07-01

Abstract

The utility model discloses a waste gas treatment device for waste incineration, which comprises a spray dust removal tank and an electrostatic dust removal tank, wherein the upper end of the spray dust removal tank is connected with the bottom of the electrostatic dust removal tank through a flue gas pipeline, the lower end of the spray dust removal tank is connected with a smoke inlet pipeline, a first fan is arranged on the smoke inlet pipeline, and the upper end of the electrostatic dust removal tank is connected with a smoke exhaust pipeline; be provided with spray set in the dust removal jar that sprays, be provided with a plurality of cathode bars in the electrostatic precipitator jar, a plurality of cathode bars are installed on cathode installation stick, and cathode installation stick is fixed on the bracing piece, is provided with the dust collecting plate on the inner wall of electrostatic precipitator jar, and dust collecting plate and cathode bar are connected with the transformer electricity, and the transformer is connected with the controller electricity. This scheme is used for handling the waste gas that msw incineration produced, and the flue gas that the waste combustion produced is discharged into through first fan and is sprayed the dust removal jar, gets rid of the large granule smoke and dust, and the smoke and dust of tiny granule is in the same direction as in the exhaust pipe discharges into electrostatic precipitator, carries out electrostatic precipitator.

Description

Waste incineration's exhaust treatment device

Technical Field

The utility model relates to a waste gas treatment technical field, concretely relates to waste incineration's exhaust treatment device.

Background

Compared with the garbage incineration, the garbage incineration has a plurality of good advantages, the garbage incineration technology is also pushed in a plurality of cities, and the garbage incineration has the following advantages:

1. the process is simple and the operation is reliable. The incinerator can be directly incinerated without sorting and pretreatment, the technologies of waste heat boilers, steam power circulation, cogeneration and the like are mature and reliable, and the full-closed industrialized production mode can ensure that the incinerator can operate all the day without being influenced by natural conditions.

2. The garbage treatment speed is high, and the treatment capacity is large.

3. The volume reduction of the waste after incineration is large. The capacity reduction is 70% -90%, which is particularly important for cities with very short supply of land resources.

4. Improves the urban sanitary environment. During high temperature incineration, a large number of pathogens are destroyed.

5. Changing waste into valuable. The conversion of chemical energy in the garbage to high-grade electric energy is realized.

In the process of waste incineration, a large amount of waste gas is generated, a large amount of smoke dust is mixed in the waste gas and is discharged into the air, so that the environment is seriously polluted, and the waste gas needs to be treated in time.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough among the prior art, the utility model provides a waste incineration's exhaust treatment device.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the waste gas treatment device for waste incineration comprises a spraying dust removal tank and an electrostatic dust removal tank, wherein the upper end of the spraying dust removal tank is connected with the bottom of the electrostatic dust removal tank through a flue gas pipeline, the lower end of the spraying dust removal tank is connected with a smoke inlet pipeline, a first fan is arranged on the smoke inlet pipeline, and the upper end of the electrostatic dust removal tank is connected with a smoke exhaust pipeline; be provided with spray set in the dust removal jar that sprays, be provided with a plurality of cathode bars in the electrostatic precipitator jar, a plurality of cathode bars are installed on cathode installation stick, and cathode installation stick is fixed on the bracing piece, is provided with the dust collecting plate on the inner wall of electrostatic precipitator jar, and dust collecting plate and cathode bar are connected with the transformer electricity, and the transformer is connected with the controller electricity.

Further, spray set includes the toroidal tube, and the toroidal tube is installed in the upper end that sprays the dust removal jar, installs a plurality of shower nozzles on the toroidal tube, and the toroidal tube passes through the raceway and is connected with the storage water tank, is provided with first water pump on the raceway.

Further, the lower end of the spraying dust removal tank is provided with a slag discharge port, the slag discharge port is connected with a filter residue cavity at the upper end of the water storage tank, and a filter screen is arranged in the filter residue cavity.

Furthermore, a liquid level sensor is arranged in the water storage tank, the upper end of the water storage tank is connected with a water inlet pipe, and the water inlet pipe is connected with a water pipe for conveying water through a second water pump.

Further, a second fan is arranged on the flue gas pipeline.

Furthermore, the cathode mounting bars are vertically arranged in the electrostatic dust removal tank, the cathode bars are vertically arranged on the cathode mounting bars, and the cathode bars are uniformly distributed on the cathode mounting bars.

The utility model has the advantages that: the scheme is used for treating waste gas generated by waste incineration, smoke generated by waste combustion is discharged into the spraying dust removal tank through the first fan, and water mist is sprayed in the spraying dust removal tank, so that large-particle smoke dust is attached with water and falls into the lower end of the spraying dust removal tank; the small-particle smoke dust is discharged into the electrostatic dust collection tank along the smoke discharge pipeline, electrostatic voltage is generated between the cathode bar and the dust collection plate, and after the dust particles and negative ions are combined to be charged negatively, the dust particles tend to be discharged and deposited on the surface of the anode, so that the dust is collected on the dust collection plate. And the smoke dust discharged into the electrostatic dust collection tank carries water mist, so that the conductivity is improved, and the separation of dust and air flow is facilitated.

The first water pump extracts water in the water storage tank, divides the water flow through the annular pipe, and forms even water mist in the spraying dust removal tank through the plurality of spray heads, so that the dust removal effect is improved. The large granule smoke and dust that has attached to water falls into the filter residue intracavity to carry out the drainage through the filter screen, realize the recovery of water, impurity stays the filter screen top. The liquid level sensor is used for detecting the amount of water in the water storage tank, and when the liquid level is too low, the second water pump pumps water to replenish the water amount in time. The second fan is used for driving the flue gas to be discharged into the electrostatic dust removal tank, so that the flow velocity of the flue gas is increased, and the efficiency of flue gas discharging is improved. A plurality of cathode bars and dust collecting plate cooperation form even electric field, avoid the tiny particle in the waste gas to run off, increase exhaust-gas treatment's effect.

Drawings

FIG. 1 is a schematic view of a waste gas treatment apparatus for incinerating waste.

Fig. 2 is a structural view of the ring pipe.

The device comprises a first fan 1, a first fan 2, a smoke inlet pipeline 3, a spray dust removal tank 4, a ring pipe 5, a slag discharge port 6, a dust collecting plate 7, a filter residue cavity 8, a second water pump 9, a water storage tank 10, a filter screen 11, a liquid level sensor 12, a first water pump 13, a transformer 14, a controller 15, a second fan 16, a cathode bar 17, a cathode mounting bar 18, a support rod 19, a smoke pipeline 20, a smoke exhaust pipeline 21, an electrostatic dust removal tank 22 and a spray head.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 to 2, the waste gas treatment device for waste incineration in the scheme comprises a spraying dust-removing tank 3 and an electrostatic dust-removing tank 21, wherein the upper end of the spraying dust-removing tank 3 is connected with the bottom of the electrostatic dust-removing tank 21 through a flue gas pipeline 19, the lower end of the spraying dust-removing tank 3 is connected with a smoke inlet pipeline 2, a first fan 1 is arranged on the smoke inlet pipeline 2, and the upper end of the electrostatic dust-removing tank 21 is connected with a smoke exhaust pipeline 20; be provided with spray set in the dust removal jar 3 that sprays, be provided with a plurality of cathode bar 16 in the electrostatic precipitator jar 21, a plurality of cathode bar 16 are installed on cathode installation stick 17, and cathode installation stick 17 is fixed on bracing piece 18, and the both ends of bracing piece 18 are fixed on electrostatic precipitator jar 21, are provided with dust collecting plate 6 on the inner wall of electrostatic precipitator jar 21, and dust collecting plate 6 and cathode bar 16 are connected with transformer 13 electricity, and transformer 13 is connected with controller 14 electricity.

The scheme is used for treating waste gas generated by waste incineration, smoke generated by waste combustion is discharged into the spraying dust removal tank 3 through the first fan 1, water mist is sprayed in the spraying dust removal tank 3, and large-particle smoke dust is attached with water and falls into the lower end of the spraying dust removal tank 3; the small-particle smoke is discharged into the electrostatic dust collection tank 21 along the smoke discharge pipe 20, electrostatic voltage is generated between the cathode bar 16 and the dust collection plate 6, and after the dust particles and negative ions are combined to be charged negatively, the dust particles tend to be discharged on the surface of the anode and deposited, so that the dust is collected on the dust collection plate 6. And the smoke dust discharged into the electrostatic dust collection tank 21 carries water mist, so that the conductivity is improved, and the separation of dust and air flow is facilitated.

In this embodiment, the spraying device comprises a ring pipe 4, the ring pipe 4 is installed at the upper end of the spraying dust removal tank 3, a plurality of spray heads 22 are installed on the ring pipe 4, the ring pipe 4 is connected with the water storage tank 9 through a water pipe, and a first water pump 12 is arranged on the water pipe. The lower extreme that sprays dust removal tank 3 is provided with row cinder notch 5, arranges cinder notch 5 and is connected with filter residue chamber 7 on the storage water tank 9, is provided with filter screen 10 in the filter residue chamber 7, is provided with the chamber door that can open on the filter residue chamber 7, conveniently arranges the sediment. A liquid level sensor 11 is arranged in the water storage tank 9, the upper end of the water storage tank 9 is connected with a water inlet pipe, and the water inlet pipe is connected with a water pipe for conveying water through a second water pump 8.

The first water pump 12 pumps water in the water storage tank 9, the water is divided through the annular pipe 4, and uniform water mist is formed in the spraying dust removal tank 3 through the plurality of spray heads 22, so that the dust removal effect is improved. The large-particle smoke dust attached with water falls into the filter residue cavity 7, water is filtered through the filter screen 10, water is recycled, and impurities are left above the filter screen 10. The liquid level sensor 11 is used for detecting the amount of water in the water storage tank 9, and when the liquid level is too low, the second water pump 8 pumps water to supplement the water amount in time.

In this embodiment, the flue gas duct 19 is provided with a second fan 15; the second fan 15 is used for driving the flue gas to be discharged into the electrostatic dust collection tank 21, so that the flow velocity of the flue gas is increased, and the efficiency of flue gas discharging is improved. The cathode mounting bars 17 are vertically arranged in the electrostatic dust collection tank 21, the plurality of cathode bars 16 are vertically arranged on the cathode mounting bars 17, and the plurality of cathode bars 16 are uniformly distributed on the cathode mounting bars 17; the cathode bars 16 are matched with the dust collecting plate 6 to form an even electric field, so that the loss of tiny particles in waste gas is avoided, and the effect of waste gas treatment is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The waste gas treatment device for waste incineration is characterized by comprising a spraying dust removal tank and an electrostatic dust removal tank, wherein the upper end of the spraying dust removal tank is connected with the bottom of the electrostatic dust removal tank through a flue gas pipeline; the improved electrostatic dust collection tank is characterized in that a spraying device is arranged in the spraying dust collection tank, a plurality of cathode bars are arranged in the electrostatic dust collection tank and are installed on the cathode installation bar, the cathode installation bar is fixed on the supporting rod, a dust collection plate is arranged on the inner wall of the electrostatic dust collection tank, the dust collection plate and the cathode bars are electrically connected with a transformer, and the transformer is electrically connected with the controller.

2. The waste gas treatment device for waste incineration according to claim 1, wherein the spraying device comprises a ring pipe, the ring pipe is installed at the upper end of the spraying dust removal tank, a plurality of spray heads are installed on the ring pipe, the ring pipe is connected with the water storage tank through a water conveying pipe, and a first water pump is arranged on the water conveying pipe.

3. The waste incineration exhaust gas treatment device according to claim 2, wherein a slag discharge port is arranged at the lower end of the spray dust removal tank, the slag discharge port is connected with a filter residue cavity at the upper end of the water storage tank, and a filter screen is arranged in the filter residue cavity.

4. The waste gas treatment device of claim 2, wherein a liquid level sensor is arranged in the water storage tank, the upper end of the water storage tank is connected with a water inlet pipe, and the water inlet pipe is connected with a water pipe for conveying water through a second water pump.

5. The waste incineration exhaust gas treatment device of claim 1, wherein a second fan is disposed on the flue gas pipeline.

6. The waste incineration exhaust gas treatment device according to claim 1, wherein the cathode mounting bars are vertically disposed in the electrostatic dust collection tank, a plurality of the cathode bars are vertically mounted on the cathode mounting bars, and a plurality of the cathode bars are uniformly distributed on the cathode mounting bars.