Chemical engineering waste gas purification device

Abstract

The utility model discloses a chemical engineering waste gas purification device, and relates to the technical field of chemical engineering waste gas purification, the device comprises a pretreatment box, a spray tower and a purification liquid box which are arranged on the ground, a pretreatment module is arranged in the pretreatment box, and a gas outlet of the pretreatment box is communicated with a gas inlet of the spray tower through a gas conveying module; a waste gas purification mechanism is arranged in the spray tower, a spray accumulated liquid outlet at the bottom end of the spray tower is communicated with a purification liquid box through an accumulated liquid discharge structure, and a liquid conveying unit is arranged on the purification liquid box. The spray accumulated liquid outlet is arranged at the bottom of the spray tower, a first liquid conveying pipe communicated with the spray accumulated liquid outlet is provided with a first U-shaped bend of the liquid conveying pipe, and a second U-shaped bend of the liquid conveying pipe is provided with a second U-shaped bend of the liquid conveying pipe; the bottom of the first U-shaped bend of the liquid conveying pipe is in threaded connection with a sludge accumulation tank, so that dirt in accumulated liquid at the bottom of the spray tower is deposited in the sludge accumulation tank, the sediment can be cleaned by detaching the sludge accumulation tank, excessive dirt accumulation in the spray tower is prevented, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical waste gas purification, in particular to a chemical engineering waste gas purification device. Background Art

[0002] Chemical engineering waste gas generally contains substances such as powder or organic vapor that are harmful to the environment and human health and need to be treated before being discharged.

[0003] For example, the centralized purification treatment equipment for chemical waste gas recorded in patent announcement number CN220990216U, the equipment treats waste gas by first passing the waste gas through a treatment box, the filter screen and activated carbon in the treatment box preliminarily intercept and treat large particles and organic oil mist in the waste gas, and then the waste gas enters a spray tower for spray treatment, the dust impurities in the waste gas are combined with water mist and adsorbed by the filler, under the action of the spray device, the dust adsorbed on the filler falls into the base with the water droplets formed by the water mist, and accumulates to form sludge that is not easy to clean.

[0004] Based on this, a chemical engineering waste gas purification device is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0005] The utility model aims to provide a chemical engineering waste gas purification device to solve the problems in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A chemical engineering waste gas purification device comprises a pretreatment box, a spray tower and a purified liquid tank arranged on the ground, wherein the left end of the pretreatment box is provided with a pretreatment box air inlet, the right end of the pretreatment box is provided with a pretreatment box air outlet, a pretreatment module is provided in the pretreatment box, a spray tower air inlet is provided at the lower left part of the spray tower, a spray tower liquid inlet is provided at the upper right part of the spray tower, a purified gas outlet is provided at the top of the spray tower, the pretreatment box air outlet is connected to the spray tower air inlet through a gas delivery module, a waste gas purification mechanism is provided in the spray tower, a spray accumulated liquid outlet is provided at the bottom end of the spray tower, the spray accumulated liquid outlet is connected to the purified liquid tank through an accumulated liquid discharge structure, and a liquid delivery unit for supplying purified liquid to the waste gas purification mechanism is provided on the purified liquid tank.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional scheme: the pretreatment module includes a sliding groove arranged on the bottom surface of the pretreatment box near one end of the air inlet of the pretreatment box, a filter rack is slidably provided on the sliding groove, a filter is provided on the filter rack, a support frame is slidably provided on the bottom surface of the pretreatment box to the right of the filter frame, the bottom of the support frame is rotatably connected to a support wheel, the support wheel contacts the ground, and an activated carbon block is provided on the support frame.

[0010] In an optional solution: the gas delivery module includes a fan whose gas input end is connected to the air outlet of the pretreatment box, the gas output end of the fan is connected to one end of the gas pipe, and the other end of the gas pipe is connected to the air inlet of the spray tower, and a U-shaped bend of the gas pipe is provided on the side of the air inlet of the pretreatment box close to the air inlet of the spray tower.

[0011] In an optional scheme: the exhaust gas purification mechanism includes a gas diffuser connected to the air inlet of the spray tower and a sprayer connected to the liquid inlet of the spray tower, the diffuser includes a main diffusion pipe connected to the air inlet of the spray tower, the main diffusion pipe is connected to multiple secondary diffusion pipes, and the secondary diffusion pipes are provided with diffusion holes.

[0012] In an optional solution: the sprayer includes a main spray pipe connected to a liquid inlet of a spray tower, the main spray pipe is connected to a plurality of auxiliary spray pipes, and a plurality of atomizing nozzles are arranged on the lower surface of the auxiliary spray pipes.

[0013] In an optional scheme: the accumulated liquid discharge structure includes a first infusion tube with one end connected to the spray accumulated liquid outlet, the other end of the first infusion tube is connected to the top of the purified liquid tank and connected to the inside of the purified liquid tank, a first U-shaped bend of the infusion tube is provided on the end of the first infusion tube near the spray accumulated liquid outlet, the bottom end of the first U-shaped bend of the infusion tube is threadedly connected to the sludge accumulation tank, and a second U-shaped bend of the infusion tube is provided on the end of the first infusion tube near the purified liquid tank.

[0014] In an optional solution: the liquid delivery unit includes a water pump arranged on the purified liquid tank, the water pump input end is arranged on the bottom surface of the purified liquid tank, and the water pump output end is connected to the liquid inlet of the spray tower through a second liquid delivery pipe.

[0015] In an optional solution: the height of the U-shaped bend of the gas delivery pipe from the ground is higher than the second U-shaped bend of the liquid delivery pipe.

[0016] In an optional solution, the height of the second U-shaped bend of the infusion pipe from the ground is higher than that of the main diffusion pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The utility model provides a spray liquid outlet at the bottom of the spray tower, a first U-shaped bend of the infusion pipe is provided on the first infusion pipe connected to the spray liquid outlet, and a sludge accumulation tank is threadedly connected to the bottom of the first U-shaped bend of the infusion pipe, so that dirt in the liquid at the bottom of the spray tower is deposited in the sludge accumulation tank, and the sediment can be cleaned by removing the sludge accumulation tank, thereby preventing excessive accumulation of dirt in the spray tower, and the operation is convenient.

[0019] The utility model limits the upper limit of the liquid level of the accumulated liquid in the spray tower through the height of the second U-shaped bend of the liquid delivery pipe from the ground, so that the diffuser is located below the liquid level of the accumulated liquid, thereby improving the purification effect.

[0020] The utility model prevents the liquid accumulated in the spray tower from flowing back into the pretreatment box connected with the gas delivery pipe by making the gas delivery pipe U-shaped bend on the gas delivery pipe higher than the ground height of the second U-shaped bend of the liquid delivery pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the upper left front structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the right front lower structure of the utility model.

[0023] Figure 3 It is a cross-sectional schematic diagram of the pretreatment box of the utility model.

[0024] Figure 4 It is a partial cross-sectional schematic diagram of the rear side of the utility model.

[0025] Figure 5 For this utility model Figure 4 A partial enlarged view of middle A.

[0026] Figure 6 For this utility model Figure 4 A partial enlarged view of B.

[0027] Notes on reference numerals: 101, pretreatment box; 102, spray tower; 103, purified liquid box; 201, sliding trough; 202, filter rack; 203, filter; 204, support frame; 205, support wheel; 206, activated carbon block; 301, air inlet of pretreatment box; 302, air outlet of pretreatment box; 303, fan; 304, gas pipeline; 305, U-bend of gas pipeline; 306, air inlet of spray tower; 307, spray Liquid inlet of the shower tower; 401, main diffusion pipe; 402, auxiliary diffusion pipe; 403, diffusion hole; 404, main spray pipe; 405, auxiliary spray pipe; 406, atomizing nozzle; 407, purified gas outlet; 408, spray effluent outlet; 501, first liquid infusion pipe; 502, first U-shaped bend of liquid infusion pipe; 503, sludge accumulation tank; 504, second U-shaped bend of liquid infusion pipe; 601, water pump; 602, second liquid infusion pipe. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0029] Example 1

[0030] In one embodiment, Figure 1-Figure 6 As shown, a chemical engineering waste gas purification device includes a pretreatment box 101, a spray tower 102 and a purification liquid tank 103 arranged on the ground, the pretreatment box 101 is provided with a pretreatment box air inlet 301 at the left end, the pretreatment box 101 is provided with a pretreatment box air outlet 302 at the right end, the pretreatment box 101 is provided with a pretreatment module, the spray tower 102 is provided with a spray tower air inlet 306 at the lower left side, and the spray tower 102 is provided with a spray tower liquid inlet at the upper right side 307, a purified gas outlet 407 is provided at the top of the spray tower 102, the air outlet 302 of the pretreatment box is connected to the air inlet 306 of the spray tower through a gas delivery module, an exhaust gas purification mechanism is provided in the spray tower 102, a spray accumulated liquid outlet 408 is provided at the bottom of the spray tower 102, the spray accumulated liquid outlet 408 is connected to the purified liquid tank 103 through a liquid discharge structure, and a liquid delivery unit for supplying purified liquid to the exhaust gas purification mechanism is provided on the purified liquid tank 103.

[0031] In this embodiment, the chemical waste gas is first subjected to preliminary filtration and adsorption treatment through the pretreatment box 101, and then the chemical waste gas enters the pretreatment box 101 through the gas delivery module, is further purified by the waste gas purification mechanism, and is finally discharged through the liquid inlet 307 of the spray tower. The purified part of the chemical waste gas, such as the purified liquid at the bottom of the dust-mixing spray tower 102, is discharged through the accumulated liquid discharge structure, while the dust is accumulated in the form of sludge in the accumulated liquid discharge structure for easy cleaning.

[0032] In one embodiment, Figure 1-Figure 3 As shown, the pretreatment module includes a sliding groove 201 arranged on the bottom surface of the pretreatment box 101 near one end of the pretreatment box air inlet 301, a filter frame 202 is slidably provided on the sliding groove 201, a filter 203 is provided on the filter frame 202, a support frame 204 is slidably provided on the bottom surface of the pretreatment box 101 and parallel to the right of the filter frame 202, the bottom of the support frame 204 is rotatably connected to a support wheel 205, the support wheel 205 contacts the ground, an activated carbon block 206 is provided on the support frame 204, the filter 203 can be cleaned or replaced by pulling out the filter frame 202, and the activated carbon block 206 can be replaced by pulling out the support frame 204, and the operation is simpler and more convenient.

[0033] In one embodiment, Figure 1As shown, the gas delivery module includes a fan 303 whose gas input end is connected to the pretreatment box air outlet 302, the gas output end of the fan 303 is connected to one end of the gas pipe 304, and the other end of the gas pipe 304 is connected to the spray tower air inlet 306, and a gas pipe U-shaped bend 305 is provided on the side of the pretreatment box air inlet 301 close to the spray tower air inlet 306 to help the gas in the pretreatment box 101 enter the spray tower 102 and prevent the purified liquid in the spray tower 102 from flowing back into the pretreatment box 101.

[0034] In one embodiment, Figure 4 and Figure 6 As shown, the waste gas purification mechanism includes a gas diffuser connected to the spray tower air inlet 306 and a sprayer connected to the spray tower liquid inlet 307. The diffuser includes a main diffusion pipe 401 connected to the spray tower air inlet 306. The main diffusion pipe 401 is connected to multiple secondary diffusion pipes 402. The secondary diffusion pipes 402 are provided with diffusion holes 403. The diffuser allows the chemical waste gas to evenly enter the spray tower 102, so that the chemical waste gas can more evenly contact the purification liquid.

[0035] In one embodiment, Figure 4 and Figure 5 As shown, the sprayer includes a main spray pipe 404 connected to the liquid inlet 307 of the spray tower, and the main spray pipe 404 is connected to multiple auxiliary spray pipes 405. The lower surface of the auxiliary spray pipe 405 is provided with multiple atomizing nozzles 406. The purified liquid is sprayed through the atomizing nozzles 406 to fully contact the chemical waste gas in the spray tower 102.

[0036] In one embodiment, Figure 1 As shown, the accumulated liquid discharge structure includes a first infusion tube 501 whose one end is connected to the spray accumulated liquid outlet 408, and the other end of the first infusion tube 501 is connected to the top of the purified liquid tank 103 and is connected to the inside of the purified liquid tank 103. A first U-shaped bend 502 of the infusion tube is provided on the first infusion tube 501 near the spray accumulated liquid outlet 408, and the bottom end of the first U-shaped bend 502 of the infusion tube is threadedly connected to the sludge accumulation tank 503, and a second U-shaped bend 504 of the infusion tube is provided on the first infusion tube 501 near the purified liquid tank 103. The dirt in the accumulated liquid is concentrated in the sludge accumulation tank 503 at the bottom of the first U-shaped bend 502 of the infusion tube, and the sludge accumulation tank 503 can be cleaned by removing it. The height of the second U-shaped bend 504 of the infusion tube determines the highest liquid level of the accumulated liquid at the bottom of the spray tower 102.

[0037] In one embodiment, Figure 4As shown, the liquid delivery unit includes a water pump 601 arranged on the purified liquid tank 103, the input end of the water pump 601 is arranged on the bottom surface of the purified liquid tank 103, and the output end of the water pump 601 is connected to the liquid inlet 307 of the spray tower through a second infusion pipe 602. The water pump 601 pumps the liquid in the purified liquid tank 103 into the sprayer.

[0038] Example 2

[0039] In one embodiment, Figure 1 As shown, the height of the gas pipe U-bend 305 from the ground is higher than the second U-bend 504 of the liquid pipe, so as to prevent the accumulated liquid in the spray tower 102 from flowing back into the pretreatment box 101 through the gas pipe 304 .

[0040] In one embodiment, Figure 1 As shown, the second U-shaped bend 504 of the infusion pipe is higher from the ground than the main diffusion pipe 401, so that the sprayer is placed below the liquid level in the spray tower 102. When the chemical waste gas enters the spray tower 102, it first passes through the liquid, thereby improving the purification effect.

[0041] The above embodiment discloses a chemical engineering waste gas purification device, the chemical waste gas enters the pretreatment box 101 from the pretreatment box air inlet 301, is first filtered out of large particles by the filter 203, and then some harmful odor molecules in the chemical waste gas are adsorbed by the activated carbon block 206. Under the action of the fan 303, the pretreated chemical waste gas in the pretreatment box 101 enters the main diffusion pipe 401 in the spray tower 102 through the air pipe 304, and is dispersed into the spray tower 102 through the diffusion hole 403 on the secondary diffusion pipe 402 connected to the main diffusion pipe 401. The water pump 601 pumps the purified liquid in the purified liquid tank 103 into the main spray pipe 404, and the purified liquid is sprayed through the atomizing nozzle 406 on the secondary spray pipe 405 connected to the main spray pipe 404. The water mist is formed in the spray tower 102 to fully contact the chemical waste gas, thereby achieving a purification effect. The purified chemical waste gas is discharged from the purified gas outlet 407 at the top of the spray tower 102. The harmful substances in the chemical waste gas combine with the purified liquid mist and fall to the bottom of the spray tower 102 to form accumulated liquid. When the liquid level of the accumulated liquid is higher than the second U-shaped bend 504 of the infusion pipe, the accumulated liquid in the spray tower 102 flows into the purified liquid tank 103 through the first infusion pipe 501 for reuse. Some dirt in the accumulated liquid is deposited in the sludge accumulation tank 503 at the bottom of the first U-shaped bend 502 of the infusion pipe. The sediment can be cleaned by removing the sludge accumulation tank 503. When replacing the purified liquid, you only need to start the water pump 601 and unscrew the sludge accumulation tank 503 to release the accumulated liquid and the purified liquid in the purified liquid tank 103.

[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A chemical engineering waste gas purification device, comprising a pretreatment box (101), a spray tower (102) and a purification liquid tank (103) arranged on the ground; It is characterized in that The pretreatment box (101) is provided with a pretreatment box air inlet (301) at the left end, and a pretreatment box air outlet (302) is provided at the right end of the pretreatment box (101). A pretreatment module is provided in the pretreatment box (101). The spray tower (102) is provided with a spray tower air inlet (306) at the lower left side, and a spray tower liquid inlet (307) is provided at the upper right side of the spray tower (102). The top of the spray tower (102) is provided with a purified gas outlet ( 407), the air outlet (302) of the pretreatment box is connected to the air inlet (306) of the spray tower through the gas delivery module, the spray tower (102) is provided with an exhaust gas purification mechanism, the bottom of the spray tower (102) is provided with a spray effluent outlet (408), the spray effluent outlet (408) is connected to the purification liquid tank (103) through the effluent discharge structure, and the purification liquid tank (103) is provided with a liquid delivery unit for supplying purification liquid to the exhaust gas purification mechanism.

2. A chemical engineering waste gas purification device according to claim 1, characterized in that: The pretreatment module comprises a sliding groove (201) arranged on the bottom surface of the pretreatment box (101) near one end of the air inlet (301) of the pretreatment box, a filter frame (202) being slidably arranged on the sliding groove (201), a filter (203) being arranged on the filter frame (202), a support frame (204) being slidably arranged on the bottom surface of the pretreatment box (101) to the right of the filter frame (202), the bottom of the support frame (204) being rotatably connected to a support wheel (205), the support wheel (205) being in contact with the ground, and an activated carbon block (206) being arranged on the support frame (204).

3. A chemical engineering waste gas purification device according to claim 1, characterized in that: The gas delivery module comprises a fan (303) whose gas input end is connected to the pretreatment box gas outlet (302); the gas output end of the fan (303) is connected to one end of a gas supply pipe (304); the other end of the gas supply pipe (304) is connected to a spray tower gas inlet (306); and a gas supply pipe U-shaped bend (305) is provided on the pretreatment box gas inlet (301) on the side close to the spray tower gas inlet (306).

4. A chemical engineering waste gas purification device according to claim 3, characterized in that: The exhaust gas purification mechanism comprises a gas diffuser connected to the spray tower air inlet (306) and a sprayer connected to the spray tower liquid inlet (307), the diffuser comprises a main diffusion pipe (401) connected to the spray tower air inlet (306), the main diffusion pipe (401) is connected to a plurality of secondary diffusion pipes (402), and the secondary diffusion pipes (402) are provided with diffusion holes (403).

5. A chemical engineering waste gas purification device according to claim 4, characterized in that: The sprayer comprises a main spray pipe (404) connected to a liquid inlet (307) of a spray tower, the main spray pipe (404) being connected to a plurality of auxiliary spray pipes (405), and a plurality of atomizing nozzles (406) are arranged on the lower surface of the auxiliary spray pipes (405).

6. A chemical engineering waste gas purification device according to claim 4, characterized in that: The accumulated liquid discharge structure comprises a first liquid infusion tube (501) having one end connected to the spray accumulated liquid outlet (408); the other end of the first liquid infusion tube (501) is connected to the top of the purified liquid tank (103) and is connected to the interior of the purified liquid tank (103); a first U-shaped bend (502) of the liquid infusion tube is provided on the end of the first liquid infusion tube (501) close to the spray accumulated liquid outlet (408); the bottom end of the first U-shaped bend (502) of the liquid infusion tube is threadedly connected to the sludge accumulation tank (503); and a second U-shaped bend (504) of the liquid infusion tube is provided on the end of the first liquid infusion tube (501) close to the purified liquid tank (103).

7. A chemical engineering waste gas purification device according to claim 1, characterized in that: The liquid delivery unit comprises a water pump (601) arranged on the purified liquid tank (103), the input end of the water pump (601) is arranged on the bottom surface of the purified liquid tank (103), and the output end of the water pump (601) is connected to the liquid inlet (307) of the spray tower through a second liquid delivery pipe (602).

8. A chemical engineering waste gas purification device according to claim 6, characterized in that: The height of the U-shaped bend (305) of the gas delivery pipe from the ground is higher than the second U-shaped bend (504) of the liquid delivery pipe.

9. A chemical engineering waste gas purification device according to claim 6, characterized in that: The height of the second U-shaped bend (504) of the liquid infusion pipe from the ground is higher than that of the main diffusion pipe (401).

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