Solid-liquid separation device for waste gas paint gas treatment

Abstract

The utility model provides a solid-liquid separation device for waste gas paint gas treatment, which belongs to the technical field of solid-liquid separation, and comprises a dust-settling tank and a settling tank, one side of the top of the dust-settling tank is hermetically communicated with a gas inlet pipe, the inner wall of the gas inlet pipe is in threaded connection with a large-particle filter cartridge, and a plurality of dust-settling annular water pipes are distributed at the top of the inner wall of the dust-settling tank; a plurality of atomizing dust-falling nozzles are distributed on the inner sides of the dust-falling annular water pipes, a dust-falling water pump is arranged on the other side of the dust-falling tank, a flow-dividing pipe is arranged at the top of the water pump, and the water outlet end of the flow-dividing pipe penetrates through the top of one side of the dust-falling tank to be in sealed communication with the dust-falling annular water pipes; according to the solid-liquid separation device for waste gas paint gas treatment, an external water source is pumped into the dust-falling annular water pipe through the dust-falling water pump and sprayed out from the atomization dust-falling spray head, and at the moment, waste gas with the bottom located in water mist dust falling is pumped into the exhaust pipe through the air inlet hole by the circulating fan and sprayed out from the inner circulating air pipe; the contact area of waste gas and water mist is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solid -liquid separation technical field, concretely relates to a solid -liquid separation device for waste gas paint gas treatment. BACKGROUND

[0002] In the process of producing industrial paint, the harmful waste gas in paint gas is generally removed by activated carbon, and the activated carbon filtration has limited effect on the filtration of harmful substances. The disclosed "waste paint gas purification treatment device for aluminum alloy mobile spraying" with the application number "CN202321025479.5" is a mature technology. The spraying waste gas is preliminarily filtered and adsorbed under the action of the first filter screen layer and the activated carbon adsorption screen layer, and the spraying waste gas is introduced into the water in the spraying chamber through the pipe, and the large particles are wet treated. Under the action of the infusion pump and the spraying pipe, the water is sprayed again to wet treat the waste gas, further improve the removal effect of the large particles in the spraying waste gas, and reduce the influence of the large particles in the spraying waste gas on the subsequent activated carbon filler.

[0003] However, the device still has the following defects: in actual use, the waste gas cannot effectively contact the water mist in the wet gas treatment, and the compounds in the waste gas cannot be effectively separated and recovered in the use process. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a solid-liquid separation device for waste gas paint gas treatment, which solves the problem that the waste gas cannot effectively contact the water mist in the wet gas treatment, and the compounds in the waste gas cannot be effectively separated and recovered in the use process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: including dust fall tank, sedimentation tank, one side of the top of dust fall tank is sealed and communicated with inlet pipe, the inner wall of inlet pipe is threadedly connected with large particle filter cartridge, the top of dust fall tank inner wall is distributed with a plurality of dust fall annular water pipes, the inner side of dust fall annular water pipe is distributed with a plurality of atomizing dust fall sprays, the other side of dust fall tank is equipped with dust fall water pump, the top of water pump is equipped with shunt pipe, the water outlet end of shunt pipe penetrates one side top of dust fall tank and is sealed and communicated with dust fall annular water pipe, dust fall annular water pipe is communicated with each other through shunt pipe, the middle part of dust fall tank inner wall is wound with cooling pipe, the both ends of cooling pipe are sealed and communicated with external refrigeration equipment, one side of sedimentation tank is equipped with water suction pump, the bottom of water suction pump is equipped with water delivery pipe, one end of water delivery pipe is sealed and communicated with the bottom of one side of dust fall tank.

[0006] In the solid-liquid separation device for waste gas paint gas treatment of the utility model, the top of the water suction pump is sealed and communicated with the water delivery pipe, one end of the water delivery pipe is sealed and communicated with the top of the sedimentation tank.

[0007] In the scheme, after dust setting, the wastewater adsorbing waste harmful substances is deposited in the dust setting tank, the wastewater in the dust setting tank is pumped into the sedimentation tank by the water pump, and is further treated.

[0008] In the solid-liquid separation device for waste gas paint gas treatment, the inner circulating air pipe is embedded on the top of the dust setting tank, the upper circulating pipe is sealingly and communicatively connected to the top of the inner circulating air pipe, the air extraction pipe is sealingly and communicatively connected to the bottom of the inner circulating air pipe, the air inlet holes are arranged on the surface of the air extraction pipe, and the circulating fan is arranged on the inner wall bottom of the inner circulating air pipe.

[0009] In the scheme, the external waste gas paint gas enters the dust setting tank through the air inlet pipe for dust setting treatment, at this time, the dust setting water pump pumps the external water source into the dust setting annular pipe, and sprays out from the atomizing dust setting nozzle, the atomizing dust setting nozzle is inclined upward by 30 degrees for spraying, can be fully contacted with the waste gas at the air inlet pipe, at this time, the circulating fan extracts the waste gas with water mist dust setting through the air inlet hole into the air extraction pipe and sprays out from the inner circulating air pipe, and carries out secondary dust setting treatment.

[0010] In the solid-liquid separation device for waste gas paint gas treatment, the flow limiting valve is sealingly and communicatively connected to the top of one side of the sedimentation tank, the solution supply pump is arranged on the bottom of the flow limiting valve, and the liquid inlet end of the solution supply pump is sealingly and communicatively connected with the external pipeline.

[0011] In the scheme, the external flocculating agent is pumped into the sedimentation tank through the solution supply pump, and the waste gas after dust setting is treated by flocculation.

[0012] In the solid-liquid separation device for waste gas paint gas treatment, the sealing pipe is threadedly connected to the inner wall bottom of the sedimentation tank, the waterproof sealing ring is arranged on the side of the bottom of the sealing pipe, the filtering fence is arranged on the inner wall of the sealing pipe, the V-shaped filtering grooves are arranged on the surface of the filtering fence, the drain stop valve is sealingly and communicatively connected to the bottom of the sealing pipe, and the drain stop valve is sealingly and communicatively connected with the external pipeline.

[0013] In the scheme, after the flocculating agent and the waste gas compounds in the wastewater are fully reacted, the flocculated floc is filtered through the filtering fence, the flocculated floc is concentrated and deposited on the inner wall bottom of the V-shaped filtering groove under the action of gravity, and the filtered wastewater is discharged through the drain stop valve, so that the compounds in the paint gas waste gas can be effectively recovered.

[0014] In the solid-liquid separation device for waste gas paint gas treatment, the motor speed reducer is arranged at the top end of the sedimentation tank, the stirring motor is arranged at the top of the motor speed reducer, the motor speed reducer is arranged on the stirring motor, and the stirring rod is fixedly connected to the output end of the motor speed reducer.

[0015] In this scheme, during the addition of flocculant, the output end of the motor gearbox of the stirring motor is rotated to drive the stirring rod to effectively stir the wastewater containing compounds in the paint exhaust gas, thereby improving the reaction between the flocculant and the compounds in the exhaust gas, enhancing the reaction effect, and reducing the compound content in the wastewater.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. External water is pumped into the dust suppression ring water pipe by a dust suppression water pump and sprayed out from the atomizing dust suppression nozzle. The atomizing dust suppression nozzle is tilted upward at 30 degrees to spray, so that it can fully contact the exhaust gas at the air inlet pipe. At this time, the circulating fan draws the exhaust gas at the bottom of the water mist dust suppression into the exhaust pipe through the air inlet and sprays it out from the internal circulation air pipe for secondary dust suppression treatment, thereby increasing the contact area between the exhaust gas and the water mist and improving the treatment efficiency of exhaust gas dust suppression.

[0018] 2. External flocculant is pumped into the sedimentation tank via a solution supply pump to flocculate the dust-laden exhaust gas. The stirring motor drives the output end of the motor reduction gearbox to effectively stir the wastewater containing compounds in the paint exhaust gas, improving the full reaction between the flocculant and the compounds in the exhaust gas. The clumps of flocculated material are filtered through the filter screen. Under the action of gravity, the flocculated material settles at the bottom of the inner wall of the V-shaped filter groove. The filtered wastewater is discharged through the drain stop valve, which can effectively recover the compounds in the paint exhaust gas. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the dust collection tank of this utility model;

[0022] Figure 3 This is a schematic cross-sectional view of the sedimentation tank of this utility model;

[0023] Figure 4 This is a schematic diagram of the sealing tube structure of this utility model.

[0024] In the diagram: 1. Dust settling tank; 2. Sedimentation tank; 3. Air inlet pipe; 4. Large particle filter cartridge; 5. Dust settling ring water pipe; 6. Atomizing dust settling nozzle; 7. Dust settling water pump; 8. Diverter pipe; 9. Cooling pipe;

[0025] 10. Water pump; 11. Water delivery pipe; 12. Water supply pipe; 13. Internal circulation duct; 14. Upper circulation pipe; 15. Exhaust duct; 151. Air inlet; 16. Circulating fan; 17. Flow limiting valve; 18. Solution supply pump; 19. Sealing pipe;

[0026] 20. Waterproof sealing ring; 21. Filter screen; 22. V-shaped filter groove; 23. Drain shut-off valve; 24. Motor gearbox; 25. Agitator motor; 26. Agitator rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 4 This utility model provides the following technical solution: a solid-liquid separation device for treating paint gas, including a dust settling tank 1 and a sedimentation tank 2. The top of the dust settling tank 1 is sealed and connected to an air inlet pipe 3. A large particle filter cylinder 4 is threadedly connected to the inner wall of the air inlet pipe 3. Several dust settling annular water pipes 5 are distributed on the top of the inner wall of the dust settling tank 1. Several atomizing dust settling nozzles 6 are distributed on the inner side of the dust settling annular water pipes 5. A dust settling water pump 7 is provided on the other side of the dust settling tank 1. A diversion pipe 8 is provided on the top of the water pump. The water outlet end of the diversion pipe 8 passes through the top of one side of the dust settling tank 1 and is sealed and connected to the dust settling annular water pipes 5. The dust settling annular water pipes 5 are interconnected through the diversion pipe 8. A cooling pipe 9 is wound around the middle of the inner wall of the dust settling tank 1. The two ends of the cooling pipe 9 are sealed and connected to an external refrigeration equipment. A water pump 10 is provided on one side of the sedimentation tank 2. A water delivery pipe 11 is provided at the bottom of the water pump 10. One end of the water delivery pipe 11 is sealed and connected to the bottom side of the dust settling tank 1.

[0029] In a specific embodiment of a solid-liquid separation device for treating paint gas waste, please refer to... Figure 1 The top of the water pump 10 is sealed and connected to a water delivery pipe 12, one end of which is sealed and connected to the top of the sedimentation tank 2.

[0030] Please see Figure 1 After the dust suppression is completed, the wastewater that has adsorbed harmful substances settles inside the dust suppression tank 1. The wastewater inside the dust suppression tank 1 is pumped into the sedimentation tank 2 for treatment by the water pump 10.

[0031] In a specific embodiment of a solid-liquid separation device for treating paint gas waste, please refer to... Figure 2The inner circulating air pipe 13 is embedded on the top of the dust falling tank 1, the upper circulating pipes 14 are sealed and communicated on the top of the two sides of the inner circulating air pipe 13, the air extraction pipe 15 is sealed and communicated at the bottom of the inner circulating air pipe 13, the air inlet holes 151 are distributed on the surface of the air extraction pipe 15, and the circulating fan 16 is arranged on the inner wall of the inner circulating air pipe 13.

[0032] Please refer to Figure 2 The external waste gas paint gas enters the dust falling tank 1 through the air inlet pipe 3 to be treated, at this time, the dust falling water pump 7 pumps the external water source into the dust falling annular water pipe 5 and sprays it from the atomizing dust falling nozzle 6, the atomizing dust falling nozzle 6 is inclined upward by 30 degrees to spray, which can fully contact with the waste gas at the air inlet pipe 3, at this time, the circulating fan 16 extracts the waste gas with water mist dust at the bottom through the air inlet hole 151 into the air extraction pipe 15 and sprays it from the inner circulating air pipe 13 to be treated.

[0033] In a specific embodiment of the solid-liquid separation device for treating waste gas paint gas, please refer to Figure 3 The flow limiting valve 17 is sealed and communicated on one side of the top of the sedimentation tank 2, the solution supply pump 18 is arranged at the bottom of the flow limiting valve 17, and the liquid inlet end of the solution supply pump 18 is sealed and communicated with the external pipeline.

[0034] Please refer to Figure 3 The external flocculating agent is pumped into the sedimentation tank 2 by the solution supply pump 18 to be treated.

[0035] In a specific embodiment of the solid-liquid separation device for treating waste gas paint gas, please refer to Figures 3-4 The sealing pipe 19 is threadedly connected to the inner wall of the bottom of the sedimentation tank 2, the waterproof sealing ring 20 is arranged on the side of the bottom of the sealing pipe 19, the filter fence 21 is arranged on the inner wall of the sealing pipe 19, the V-shaped filter groove 22 is arranged on the surface of the filter fence 21, the drain stop valve 23 is sealed and communicated with the external pipeline.

[0036] Please refer to Figure 3 - Figure 4 After the flocculating agent fully reacts with the waste gas compounds in the waste water, the flocculated floc is filtered by the filter fence 21, the flocculated floc is concentrated and deposited on the inner wall of the bottom of the V-shaped filter groove 22 under the action of gravity, and the filtered waste water is discharged through the drain stop valve 23, so that the compounds in the paint gas waste gas can be effectively recovered.

[0037] In a specific embodiment of the solid-liquid separation device for treating waste gas paint gas, please refer to Figure 3 The motor reduction box 24 is arranged at the top of the sedimentation tank 2, the stirring motor 25 is arranged at the top of the motor reduction box 24, the motor reduction box 24 is arranged on the stirring motor 25, and the stirring rod 26 is fixedly connected to the output end of the motor reduction box 24.

[0038] Please refer to Figure 3 : in the process of joining flocculating agent, through the stirring motor 25 rotates the motor output end of speed reducer 24, driving the stirring rod 26 to the wastewater mixed with paint gas compounds in the waste gas for effective stirring, improve the flocculating agent and compounds in the waste gas for full reaction, improve the reaction effect, reduce the compound content in wastewater.

[0039] The solid-liquid separation device for waste gas paint gas treatment provided by the utility model, the specific use mode is as follows: the large-particle filter cartridge 4 filters large impurities in air, improves waste gas purity, reduces dust content, external waste gas paint gas enters the dust falling tank 1 through the air inlet pipe 3 to carry out dust falling treatment, at this time, the dust falling water pump 7 pumps external water source into the dust falling annular water pipe 5 and sprays from the atomizing dust falling nozzle 6, the atomizing dust falling nozzle 6 is inclined upward by thirty degrees to spray, can fully contact with the waste gas at the air inlet pipe 3, at this time, the circulating fan 16 draws the waste gas with water mist dust into the exhaust pipe 15 through the air inlet hole 151 and sprays from the inner circulating air pipe 13 to carry out secondary dust falling treatment, the water pump 10 draws wastewater into the sedimentation tank 2, the external flocculating agent is pumped into the sedimentation tank 2 through the solution supply pump 18 to carry out flocculation treatment on the dust falling waste gas, the stirring motor 25 rotates the motor output end of speed reducer 24 to drive the stirring rod 26 to effectively stir the wastewater mixed with compounds in the paint gas waste gas, improve the flocculating agent and compounds in the waste gas for full reaction, improve the reaction effect, reduce the compound content in wastewater, after the flocculating agent and the waste gas compounds in wastewater fully react, the filter fence 21 filters the agglomerated flocculating material, the flocculating material is concentrated and deposited on the inner wall bottom of the V-shaped filter groove 22 under the action of gravity, the filtered wastewater is discharged through the drain stop valve 23, and the compounds in the paint gas waste gas can be effectively recovered.

[0040] Finally, it should be noted that: the above only for preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A solid-liquid separation device for treating paint waste gas, comprising a dust settling tank (1) and a settling tank (2), characterized in that: The dust collection tank (1) has a sealed air inlet pipe (3) on one side of its top. A large particle filter cartridge (4) is threaded onto the inner wall of the air inlet pipe (3). Several dust collection annular water pipes (5) are distributed on the top of the inner wall of the dust collection tank (1). Several atomizing dust collection nozzles (6) are distributed on the inner side of the dust collection annular water pipes (5). A dust collection water pump (7) is provided on the other side of the dust collection tank (1). A diversion pipe (8) is provided on the top of the water pump. The water outlet of the diversion pipe (8) passes through the dust collection tank. 1) The top of one side is sealed and connected to the dust-suppressing annular water pipe (5). The dust-suppressing annular water pipes (5) are interconnected through the diversion pipe (8). The middle of the inner wall of the dust-suppressing tank (1) is wrapped with a cooling pipe (9). The two ends of the cooling pipe (9) are sealed and connected to the external refrigeration equipment. A water pump (10) is provided on one side of the sedimentation tank (2). A water delivery pipe (11) is provided at the bottom of the water pump (10). One end of the water delivery pipe (11) is sealed and connected to the bottom side of the dust-suppressing tank (1).

2. The solid-liquid separation device for treating paint gas according to claim 1, characterized in that: The top of the water pump (10) is sealed and connected to a water delivery pipe (12), and one end of the water delivery pipe (12) is sealed and connected to the top of the sedimentation tank (2).

3. The solid-liquid separation device for treating paint gas according to claim 1, characterized in that: The dust collection tank (1) is equipped with an internal circulation duct (13) at the top. The upper circulation duct (14) is sealed and connected to both sides of the top of the internal circulation duct (13). The exhaust duct (15) is sealed and connected to the bottom of the internal circulation duct (13). Air inlets (151) are distributed on the surface of the exhaust duct (15). A circulation fan (16) is provided at the bottom of the inner wall of the internal circulation duct (13).

4. The solid-liquid separation device for treating paint gas according to claim 1, characterized in that: The top of one side of the sedimentation tank (2) is sealed and connected to a flow limiting valve (17). The bottom of the flow limiting valve (17) is equipped with a solution supply pump (18). The inlet end of the solution supply pump (18) is sealed and connected to an external pipeline.

5. A solid-liquid separation device for treating paint gas according to claim 1, characterized in that: The sedimentation tank (2) has a sealing tube (19) threaded to the bottom of its inner wall. The bottom side of the sealing tube (19) is provided with a waterproof sealing ring (20). The inner wall of the sealing tube (19) is provided with a number of filter grids (21). The surface of the filter grids (21) is provided with a number of V-shaped filter grooves (22). The bottom of the sealing tube (19) is sealed and connected to a drain stop valve (23). The drain stop valve (23) is sealed and connected to an external pipe.

6. A solid-liquid separation device for treating paint gas according to claim 5, characterized in that: The sedimentation tank (2) is equipped with a motor reduction gearbox (24) at the top, and a stirring motor (25) is provided at the top of the motor reduction gearbox (24). The stirring motor (25) is equipped with a motor reduction gearbox (24), and a stirring rod (26) is fixedly connected to the output end of the motor reduction gearbox (24).

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