Collecting and treating device for VOCs gas in coal coking wastewater pool

Abstract

The utility model belongs to the technical field of coal coking waste, particularly relates to a collecting and treating device for VOCs (volatile organic compounds) gas in a coal coking waste water pool, and provides the following scheme aiming at the problems that the treated gas does not reach the standard and must be discharged to the atmosphere to cause environmental pollution due to the fact that the existing equipment is not provided with a waste secondary reflux structure. A filtering structure is arranged in the treatment box, a liquid supply structure is arranged at the bottom end of the interior of the treatment box, the filtering structure comprises six bearing plates symmetrically welded to the two sides of the interior of the treatment box, and first filtering plates are mounted at the tops of the two bearing plates at the top in the six bearing plates through bolts. According to the utility model, the detector is arranged in the exhaust port, so that the gas concentration detection behavior is realized in real time, and once the gas concentration is detected to be substandard, the gas is conveyed to the gas collection port through the return pipe, so that the secondary treatment behavior is realized, the quality of the exhausted gas is effectively improved, and the problem of environmental pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal coking waste, in particular to a device for collecting and treating VOCs gas in a coal coking wastewater pool. Background Art

[0002] VOCs are various organic compounds with boiling points ranging from 50°C to 260°C at room temperature. VOCs are usually divided into several categories, including non-methane hydrocarbons, oxygen-containing organic compounds, halogenated hydrocarbons, hydrogen-containing organic compounds, and sulfur-containing organic compounds. VOCs participate in the formation of ozone and secondary aerosols in the atmospheric environment, and have an important impact on regional atmospheric ozone pollution and PM2.5 pollution. Most VOCs have a special unpleasant odor and are toxic, irritating, teratogenic, and carcinogenic. Benzene, toluene, and formaldehyde, in particular, can cause great harm to human health. VOCs are important precursors to urban haze and photochemical smog, and are mainly derived from processes such as coal chemical industry, petrochemical industry, fuel coating manufacturing, and solvent manufacturing and use.

[0003] A patent with publication number CN216801037U is retrieved and disclosed, which is a device for collecting and treating VOCs gas in a coal coking wastewater pool. The device comprises a horizontally arranged water pool, a crossbeam is horizontally installed at the top center of the water pool, a gas collecting pipe and a water inlet pipe are installed at the top of the crossbeam, an induced draft fan is installed on the gas collecting pipe, and folded rainproof cloths are connected to both sides of the crossbeam.

[0004] The existing equipment does not have a secondary reflux structure for waste, resulting in the treated gas being discharged into the atmosphere when it does not meet the standards, causing environmental pollution. Therefore, we propose a collection and treatment device for VOCs gas in coal coking wastewater pools to solve the above problem. Utility Model Content

[0005] The utility model aims to solve the shortcoming that the gas cannot be treated secondary, and proposes a device for collecting and treating VOCs gas in a coal coking wastewater pool.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a collection and treatment device for VOCs gas in a coal coking wastewater pool, comprising a treatment box, a filtering structure is arranged inside the treatment box, and a liquid supply structure is arranged at the bottom end of the treatment box;

[0007] The filtering structure comprises six supporting plates symmetrically welded to both sides of the inside of the processing box, wherein the top of the two top supporting plates among the six supporting plates are installed with filter plates 1 by bolts, the top of the two middle supporting plates among the six supporting plates are installed with filter plates 2 by bolts, and the top of the two bottom supporting plates among the six supporting plates are installed with filter plates 3 by bolts;

[0008] An exhaust port is welded on the top of the processing box, a detector is plugged into the exhaust port, a return pipe is plugged into one side of the exhaust port and at the bottom of the detector, and the other end of the return pipe is plugged into the inside of the gas collecting port.

[0009] Preferably, one end of the gas collecting port is welded to the processing box, and the other end of the gas collecting port is mounted with a dustproof cover by screws.

[0010] Preferably, a motor is fixed to the interior of the air collecting port via a support frame installed by bolts, and a fan blade is inserted into one end of the motor close to the dustproof cover via a driving shaft.

[0011] Preferably, a waste liquid outlet is welded at the bottom of one end of the processing box.

[0012] Preferably, the filter plate 1 is made of activated carbon particles, the filter plate 2 is made of ceramic particles, and the filter plate 3 is made of fiber particle board.

[0013] Preferably, the liquid supply structure includes a water pump installed at the bottom end of the treatment box by bolts, one end of the water pump is connected to an equalizing pipe through a welded connecting pipe, and both ends of the equalizing pipe are installed at the top end of the treatment box by bolts.

[0014] Preferably, a plurality of nozzles are evenly connected to the bottom end of the averaging pipe through screw holes.

[0015] Preferably, a liquid inlet is welded to one end of the water pump.

[0016] In the utility model, the device for collecting and treating VOCs gas in a coal coking wastewater pool is:

[0017] 1. The utility model realizes real-time gas concentration detection by setting a detector inside the exhaust port. Once the gas concentration is not up to standard, the gas is transported to the gas collection port through the reflux pipe to realize secondary treatment, effectively improve the quality of the exhaust gas, and avoid environmental pollution.

[0018] 2. The utility model filters impurities in polluted wastewater by setting three layers of filter plates, realizes the secondary utilization of water resources, and achieves the purpose of reducing use costs and saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a device for collecting and treating VOCs gas in a coal coking wastewater pool proposed by the utility model;

[0020] Figure 2This is a schematic diagram of the internal structure of a device for collecting and treating VOCs gas in a coal coking wastewater pool proposed by the utility model;

[0021] Figure 3 This is a structural schematic diagram of part A of a device for collecting and treating VOCs gas in a coal coking wastewater pool proposed by the utility model.

[0022] In the figure: 1. treatment box; 2. filtering structure; 201. supporting plate; 202. filter plate one; 203. filter plate two; 204. filter plate three; 3. liquid supply structure; 301. equalizing pipe; 302. nozzle; 303. connecting pipe; 304. water pump; 305. liquid inlet; 4. detector; 5. reflux pipe; 6. gas collecting port; 7. dust shield; 8. motor; 9. fan blade; 10. exhaust port; 11. waste liquid outlet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-3 , a collection and treatment device for VOCs gas in a coal coking wastewater pool, comprising a treatment box 1, a filtering structure 2 is arranged inside the treatment box 1, and a liquid supply structure 3 is arranged at the bottom of the treatment box 1;

[0025] The filtering structure 2 includes six supporting plates 201 symmetrically welded to both sides of the inside of the processing box 1, the tops of the two top supporting plates 201 of the six supporting plates 201 are installed with filter plates 1 202 by bolts, the tops of the two middle supporting plates 201 of the six supporting plates 201 are installed with filter plates 203 by bolts, and the tops of the two bottom supporting plates 201 of the six supporting plates 201 are installed with filter plates 3 204 by bolts;

[0026] An exhaust port 10 is welded on the top of the processing box 1, and a detector 4 is inserted into the exhaust port 10. A return pipe 5 is inserted on one side of the exhaust port 10 and at the bottom of the detector 4, and the other end of the return pipe 5 is inserted into the inside of the gas collecting port 6.

[0027] In this embodiment, one end of the gas collecting port 6 is welded to the processing box 1, and the other end of the gas collecting port 6 is mounted with a dustproof shield 7 by screws.

[0028] By adopting the above solution, one end of the gas collecting port 6 is welded to the processing box 1, and the other end of the gas collecting port 6 is installed with a dustproof cover 7 by screws, so that gas collection is achieved through the gas collecting port 6.

[0029] In this embodiment, a motor 8 is fixed inside the air collecting port 6 via a support frame installed with bolts, and a fan blade 9 is inserted into one end of the motor 8 close to the dustproof cover 7 via a driving shaft.

[0030] By adopting the above scheme, a motor 8 is fixed to a support frame installed by bolts inside the air collecting port 6, and a fan blade 9 is inserted into the end of the motor 8 close to the dust cover 7 through a driving shaft, so that the motor 8 can control the synchronous rotation of the fan blade 9, thereby effectively improving the ventilation absorption efficiency.

[0031] In this embodiment, a waste liquid outlet 11 is welded to the bottom of one end of the processing box 1 .

[0032] By adopting the above solution, a waste liquid outlet 11 is welded at the bottom of one end of the processing box 1 to discharge the waste liquid.

[0033] In this embodiment, filter plate 1 202 is made of activated carbon particles, filter plate 2 203 is made of ceramic particles, and filter plate 3 204 is made of fiber particle board.

[0034] By adopting the above scheme, the filter plate 1 202 is made of activated carbon particles, the filter plate 203 is made of ceramic particles, and the filter plate 3 204 is made of fiber particle board, so as to achieve layer-by-layer filtering capability.

[0035] In this embodiment, the liquid supply structure 3 includes a water pump 304 installed at the bottom end of the processing box 1 by bolts, one end of the water pump 304 is connected to the equalizing pipe 301 through a welded connecting pipe 303, and both ends of the equalizing pipe 301 are installed at the top end of the processing box 1 by bolts.

[0036] By adopting the above scheme, the equalizing pipe 301 is inserted into one end of the water pump 304 through a welded connecting pipe 303, and the two ends of the equalizing pipe 301 are installed at the top of the inside of the treatment box 1 by bolts, so as to realize the use of the water pump 304 to supply water to the equalizing pipe 301.

[0037] In this embodiment, a plurality of nozzles 302 are evenly connected to the bottom end of the averaging pipe 301 through screw holes, and a liquid inlet 305 is welded to one end of the water pump 304 .

[0038] By adopting the above scheme, a plurality of nozzles 302 are evenly connected to the bottom of the equalizing pipe 301 through screw holes, and a liquid inlet 305 is welded to one end of the water pump 304, so as to achieve the purpose of evenly spraying liquid and effectively improve the neutralization efficiency.

[0039] In the utility model, when in use, the motor 8 controls the fan blades 9 to rotate to generate suction, and the external VOCs gas is collected into the treatment box 1. The water pump 304 draws the liquid at the bottom end of the treatment box 1 to the equalizing pipe 301, and sprays it out through a plurality of nozzles 302 to neutralize the gas. The treated gas is discharged through the exhaust port 10. Once the detector 4 detects that the gas concentration does not meet the standard, the gas is refluxed through the reflux pipe 5, and the waste liquid is filtered layer by layer through the filter plate 1 202, the filter plate 203, and the filter plate 3 204 to achieve secondary use of the liquid.

[0040] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for collecting and treating VOCs gas in a coal coking wastewater pool, comprising a treatment box (1), characterized in that: The processing box (1) is provided with a filtering structure (2) inside, and the bottom end of the processing box (1) is provided with a liquid supply structure (3); The filtering structure (2) comprises six supporting plates (201) symmetrically welded to two sides of the inside of the processing box (1); the tops of the two top supporting plates (201) among the six supporting plates (201) are mounted with filter plates one (202) by bolts; the tops of the two middle supporting plates (201) among the six supporting plates (201) are mounted with filter plates two (203) by bolts; and the tops of the two bottom supporting plates (201) among the six supporting plates (201) are mounted with filter plates three (204) by bolts; An exhaust port (10) is welded on the top of the processing box (1), a detector (4) is plugged into the interior of the exhaust port (10), a return pipe (5) is plugged into one side of the exhaust port (10) and at the bottom of the detector (4), and the other end of the return pipe (5) is plugged into the interior of the gas collecting port (6).

2. The device for collecting and treating VOCs gas from a coal coking wastewater pool according to claim 1, characterized in that: One end of the gas collection port (6) is welded to the processing box (1), and the other end of the gas collection port (6) is mounted with a dustproof shield (7) via screws.

3. The device for collecting and treating VOCs gas from a coal coking wastewater pool according to claim 2, characterized in that: A motor (8) is fixed inside the air collecting port (6) via a support frame installed with bolts, and a fan blade (9) is inserted into one end of the motor (8) close to the dustproof shield (7) via a driving shaft.

4. The device for collecting and treating VOCs gas from a coal coking wastewater pool according to claim 1, characterized in that: A waste liquid discharge port (11) is welded to the bottom of one end of the treatment box (1).

5. The device for collecting and treating VOCs gas from a coal coking wastewater pool according to claim 1, characterized in that: The filter plate one (202) is made of activated carbon particles, the filter plate two (203) is made of ceramic particles, and the filter plate three (204) is made of fiber particle board.

6. The device for collecting and treating VOCs gas from a coal coking wastewater pool according to claim 1, characterized in that: The liquid supply structure (3) comprises a water pump (304) installed at the bottom end of the processing box (1) by means of bolts, one end of the water pump (304) is connected to an equalizing pipe (301) by means of a welded connecting pipe (303), and both ends of the equalizing pipe (301) are installed at the top end of the processing box (1) by means of bolts.

7. The device for collecting and treating VOCs gas from a coal coking wastewater pool according to claim 6, characterized in that: The bottom end of the equalizing pipe (301) is evenly connected with a plurality of nozzles (302) through screw holes.

8. The device for collecting and treating VOCs gas from a coal coking wastewater pool according to claim 6, characterized in that: A liquid inlet (305) is welded to one end of the water pump (304).

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