CN215388444U

CN215388444U - Smelting flue gas treatment device

Info

Publication number: CN215388444U
Application number: CN202120572384.XU
Authority: CN
Inventors: 张瑞霖
Original assignee: Chenzhou Rongyuan Environmental Protection Technology Co ltd
Current assignee: Chenzhou Rongyuan Environmental Protection Technology Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-01-04
Anticipated expiration: 2031-03-19

Abstract

The utility model discloses a smelting flue gas treatment device which comprises a main body and a supporting structure arranged at the bottom of the main body, wherein the main body internally comprises a dust removal box, a denitration and desulfurization box and a heat exchange box; the utility model has the advantages of ingenious design, reasonable structure and simple operation, can absorb and filter the flue gas, can utilize the heat in the flue gas, and the gas treated by the device can reach the environmental emission standard without secondary treatment.

Description

Smelting flue gas treatment device

Technical Field

The utility model relates to the related field of flue gas treatment, in particular to a smelting flue gas treatment device.

Background

With the development of times and the continuous promotion of industrialization, the development and smelting of metals gradually become an important support for economic development, but the pollution of the atmosphere environment caused by smoke generated in the smelting process is very serious, and in recent years, the importance of green development is continuously provided, so that the treatment of the smoke becomes more urgent. However, the existing smelting flue gas treatment device has the following disadvantages: 1. the existing smelting flue gas treatment device has the defects of the structure, so that the device cannot contact flue gas comprehensively when in use, the desulfurization and denitrification effects of the device are poor, and the emission of the flue gas is severe to atmospheric pollution. 2. The existing smelting flue gas treatment device adopts a single dust removal plate to remove dust, so that the device has poor dust treatment effect on flue gas. 3. The existing smelting flue gas treatment device generally has the defects of low heat utilization rate and large energy loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a smelting flue gas treatment device to solve the problems in the background technology.

In order to achieve the above purpose, the utility model provides the following technical scheme:

a smelting flue gas treatment device comprises a main body and a supporting structure arranged at the bottom of the main body, wherein the main body internally comprises a dust removal box, a denitration and desulfurization box and a heat exchange box, the dust removal box, the denitration and desulfurization box and the heat exchange box are mutually communicated, one side of the main body is provided with an air inlet pipeline, the other side of the main body is provided with an air outlet pipeline, a magnetic net, a wet electric dust remover, a pulse dust collection cloth bag, a zeolite layer, an active carbon layer and a suction fan are sequentially arranged in the dust removal box from left to right, the top of the denitration and desulfurization box is provided with a motor and a liquid inlet pipeline, a liquid mixer is connected above the liquid inlet pipeline, a plurality of liquid inlet branch pipes are communicated above the liquid mixer, the lower part of the liquid inlet pipeline is connected with the top of a spray pipe, a rotary screen is arranged on the left side of the spray pipe in the denitration and desulfurization box, and a ventilation baffle is arranged between the spray pipe and the rotary screen, the denitration desulfurization box is characterized in that a liquid guide plate with two high sides and a low middle part is arranged below the spray pipe, the lowest end of the liquid guide plate is communicated with a liquid outlet pipeline arranged at the bottom of the denitration desulfurization box, the denitration desulfurization box is communicated with a heat exchange box through a vent pipe, a water inlet is formed in the top of the heat exchange box, and a water outlet is formed in the bottom of the heat exchange box.

Preferably, the liquid inlet branch pipe, the liquid outlet pipeline, the water inlet and the water outlet are all provided with switch valves.

Preferably, the surface of the rotary screen is sintered with a denitration catalyst.

Preferably, the rotary silk screen is fixed on the rotating shaft and is driven by the motor to rotate around the shaft.

Preferably, the spray pipe is provided with a plurality of groups of uniformly distributed spray heads.

Preferably, the vent pipe is hermetically connected with the heat exchange box through a flange.

Preferably, the motor bottom is provided with the support frame, the support frame comprises backup pad and clamping screw, the motor bottom with backup pad top intermediate position fixed connection, the backup pad both sides all are provided with clamping screw, the backup pad pass through clamping screw with main part top fixed connection.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has the advantages of ingenious design, reasonable structure and simple operation, can absorb and filter the flue gas, can utilize the heat in the flue gas, and the gas treated by the device can reach the environmental emission standard without secondary treatment.

Drawings

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

in the figure: 1. a support structure; 2. an air intake duct; 3. an air outlet pipe; 4. a dust removal box; 5. A magnetic net; 6. a wet electric precipitator; 7. a pulse dust collection cloth bag; 8. a zeolite layer; 9. an activated carbon layer; 10. a suction fan; 11. a denitration and desulfurization box; 12. a motor; 13. a liquid mixer; 14. A liquid inlet branch pipe; 15. a shower pipe; 16. a spray head; 17. rotating the screen; 18. a rotating shaft; 19. A gas-permeable partition plate; 20. a liquid guide plate; 21. a liquid outlet pipeline; 22. a heat exchange box; 23. a water inlet; 24. a water outlet; 25. a breather tube.

Detailed Description

The technical solutions in 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A smelting flue gas treatment device comprises a main body and a supporting structure 1 arranged at the bottom of the main body, wherein the main body comprises a dust removal box 4, a denitration and desulfurization box 11 and a heat exchange box 22, the dust removal box 4, the denitration and desulfurization box 11 and the heat exchange box 22 are communicated with each other, one side of the main body is provided with an air inlet pipeline 2, the other side of the main body is provided with an air outlet pipeline 3, a magnetic net 5, a wet electric dust collector 6, a pulse dust collection cloth bag 7, a zeolite layer 8, an active carbon layer 9 and a suction fan 10 are sequentially arranged in the dust removal box 4 from left to right, the top of the denitration and desulfurization box 11 is provided with a motor 12 and a liquid inlet pipeline, a liquid mixer 13 is connected above the liquid inlet pipeline, a plurality of liquid inlet branch pipes 14 are communicated above the liquid mixer 13, the lower part of the liquid inlet pipeline is connected with the top of a spray pipe 15, a rotary silk screen 17 is arranged on the left side of the spray pipe in the denitration and desulfurization box 11, a ventilating partition plate 19 is arranged between the spraying pipe 15 and the rotary silk screen 17, a liquid guide plate 20 with two high sides and a low middle part is arranged below the spraying pipe 15, the lowest end of the liquid guide plate 20 is communicated with a liquid outlet pipeline 21 arranged at the bottom of the denitration and desulfurization box 11, the denitration and desulfurization box 11 is communicated with the heat exchange box 22 through a ventilating pipe 25, a water inlet 23 is arranged at the top of the heat exchange box 22, and a water outlet 24 is arranged at the bottom of the heat exchange box 22.

Preferably, the liquid inlet branch pipe 14, the liquid outlet pipe 21, the water inlet 23 and the water outlet 24 are all provided with switch valves.

Preferably, a denitration catalyst is sintered on the surface of the rotary screen 17.

Preferably, the rotary screen 17 is fixed on the rotating shaft 18 and rotates around the shaft under the driving of the motor 12.

Preferably, the spray pipe 15 is provided with a plurality of groups of uniformly distributed spray heads 16.

Preferably, the vent pipe 25 is hermetically connected to the heat exchange box 22 through a flange.

Preferably, the bottom of the motor 12 is provided with a support frame, the support frame is composed of a support plate and a fixing screw rod, the bottom of the motor is fixedly connected with the middle position of the top of the support plate, the two sides of the support plate are respectively provided with the fixing screw rod, and the support plate is fixedly connected with the top of the main body through the fixing screw rod.

The working principle of the utility model is as follows: when in use, smoke generated by smelting enters a dust removal box 4 through an air inlet pipeline 2, the smoke is sequentially filtered through a magnetic net 5, a wet electric dust remover 6, a pulse dust collection cloth bag 7, a zeolite layer 8 and an activated carbon layer 9 under the action of a suction fan 10, wherein the magnetic net 5 is arranged at the foremost end of the dust removal box 4 and can magnetically attract metal powder wrapped in the smoke so as to be recycled, cleaner gas obtained by multiple times of dust removal enters a denitration and desulfurization box 11 and is fully contacted with cleaning liquid sprayed by a spray head after being reacted with denitration catalyst sintered on the surface of a rotary wire mesh 17 so as to complete desulfurization, wherein the rotary wire mesh 17 can rotate around a shaft under the driving of a motor 12 to increase the contact area of the catalyst and the smoke so that the denitration is more thorough, the cleaning liquid sprayed by the spray head can be mixed in a liquid mixer 13 through a liquid inlet branch pipe 14 so as to match the most appropriate cleaning liquid so as to ensure that the desulfurization is cleaner, the gas after denitration and desulfurization finally enters the heat exchange box 22, heat is transferred to water and then is discharged from the gas outlet pipeline 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A smelting flue gas treatment device comprises a main body and a supporting structure arranged at the bottom of the main body, and is characterized in that the main body comprises a dust removal box, a denitration and desulfurization box and a heat exchange box, the dust removal box, the denitration and desulfurization box and the heat exchange box are mutually communicated, one side of the main body is provided with an air inlet pipeline, the other side of the main body is provided with an air outlet pipeline, a magnetic net, a wet type dust collector, a pulse dust collection cloth bag, a zeolite layer, an active carbon layer and a suction fan are sequentially arranged in the dust removal box from left to right, the top of the denitration and desulfurization box is provided with a motor and a liquid inlet pipeline, a liquid mixer is connected above the liquid inlet pipeline, a plurality of liquid inlet branch pipes are communicated above the liquid mixer, the lower part of the liquid inlet pipeline is connected with the top of a spray pipe, a rotary silk screen is arranged on the left side of the spray pipe in the denitration and desulfurization box, and a ventilation baffle is arranged between the spray pipe and the rotary screen, the denitration desulfurization box is characterized in that a liquid guide plate with two high sides and a low middle part is arranged below the spray pipe, the lowest end of the liquid guide plate is communicated with a liquid outlet pipeline arranged at the bottom of the denitration desulfurization box, the denitration desulfurization box is communicated with a heat exchange box through a vent pipe, a water inlet is formed in the top of the heat exchange box, and a water outlet is formed in the bottom of the heat exchange box.

2. The smelting flue gas treatment device according to claim 1, wherein the liquid inlet branch pipe, the liquid outlet pipeline, the water inlet and the water outlet are provided with switch valves.

3. The metallurgical off-gas treatment device of claim 1, wherein the surface of the rotary wire mesh is sintered with a denitration catalyst.

4. The metallurgical off-gas treatment device of claim 1, wherein the rotary screen is fixed on a rotating shaft and is driven by a motor to rotate around the shaft.

5. The metallurgical off-gas treatment device of claim 1, wherein the spray pipe is provided with a plurality of groups of uniformly distributed spray heads.

6. The metallurgical off-gas treatment device of claim 1, wherein the vent pipe is hermetically connected to the heat exchange box by a flange.

7. The smelting flue gas treatment device according to claim 1, wherein the bottom of the motor is provided with a support frame, the support frame is composed of a support plate and fixing screws, the bottom of the motor is fixedly connected with the middle position of the top of the support plate, the fixing screws are arranged on two sides of the support plate, and the support plate is fixedly connected with the top of the main body through the fixing screws.