CN213668685U

CN213668685U - Paint spraying chamber exhaust treatment device

Info

Publication number: CN213668685U
Application number: CN202022543239.7U
Authority: CN
Inventors: 孙丁明; 黄磊; 丁雪峰; 董保明
Original assignee: Taicang Huamao Metal Products Co Ltd
Current assignee: Taicang Huamao Metal Products Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-13
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a paint spray booth exhaust treatment device, including air inlet, wet-type cyclone, demister, photodissociation purifier, dry-type filter, spray column, water pump and pond, the wet-type cyclone hypomere is located to the air inlet, the gas outlet on wet-type cyclone top is connected with the demister air inlet, the export of wet-type cyclone bottom is connected with the pond, the demister is connected with photodissociation purifier, photodissociation purifier is connected with dry-type filter, dry-type filter is connected with the spray column, water pump, pond interconnect constitute water cyclic utilization return circuit. The utility model discloses a paint spray booth exhaust treatment device can fully get rid of waste gas such as the organic pollutant that produces through the combination of each device in the paint spraying process, reduces organic waste gas and volatilizees the pollution that causes the environment, and waste water can cyclic utilization, energy-concerving and environment-protective after filtration treatment.

Description

Paint spraying chamber exhaust treatment device

Technical Field

The utility model belongs to the technical field of exhaust-gas treatment device, in particular to paint spray booth exhaust-gas treatment device.

Background

Paint spraying is a very common surface treatment process, and a large amount of organic waste gas is generated in the paint spraying production process, wherein the organic waste gas contains a large amount of paint mist, organic solvents and the like. The paint spraying waste gas in the paint spraying chamber has high concentration and content of toxic and harmful substances, and a large amount of carcinogenic substances exist, so that the body health and the life safety of a paint spraying operator are endangered if the waste gas is not effectively purified and controlled; if the toxic and harmful paint spraying waste gas is discharged directly, the environment is polluted, and the harm is caused to people.

The waste gas treatment in the prior art has the defects of incomplete demisting on organic waste gas, easy premature failure and frequent replacement of activated carbon, insufficient utilization of treated waste water and waste gas and the like.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome not enough above, the utility model aims at providing a paint spray booth exhaust treatment device, its simple structure can fully get rid of the organic pollutant that produces in the paint spraying process through the combination of each device, reduces the pollution that organic waste gas volatilizees and cause the environment, and exhaust treatment is efficient, and waste water is after the filtration is handled, and centralized processing can cyclic utilization, energy-concerving and environment-protective.

The technical scheme is as follows: the utility model provides a paint spray booth exhaust treatment device, includes air inlet, wet cyclone, demister, photodissociation purifier, dry-type filter, spray column, water pump and pond, the wet cyclone hypomere is located to the air inlet, the gas outlet and the demister air inlet on wet cyclone top are connected, wet cyclone bottom export is connected with the pond, the demister is connected with photodissociation purifier, photodissociation purifier is connected with dry-type filter, dry-type filter is connected with the spray column, water pump, pond interconnect constitute water cycle and recycle the return circuit. Through the harmful substance in the wet cyclone, demister, photodissociation purifier, dry-type filter, the spray column combination fully getting rid of waste gas, exhaust-gas treatment is efficient, recycles waste water centralized treatment through waste water circulation, avoids the waste of water resource and the improvement of cost.

Furthermore, in the paint spray chamber waste gas treatment device, the spray tower is provided with a plurality of groups of spray headers, and the spray tower is provided with corresponding water inlets at each group of spray headers.

Furthermore, in the paint spray chamber waste gas treatment device, the lower end of the spray head at the bottommost end of the spray tower is provided with the waste gas inlet, and the waste gas inlet is connected with the dry filter. The waste gas import is located the shower head lower extreme and is favorable to waste gas and spray water more abundant contact to fuse.

Further, foretell spray booth exhaust treatment device, the top of the tower that sprays is equipped with the air exit, the air exit is equipped with the exhaust fan. The air purified by the spray tower is exhausted out of the spray booth by the exhaust fan.

Further, foretell paint spray booth exhaust treatment device, the bottom end of the tower that sprays is equipped with the leakage fluid dram, the leakage fluid dram is connected with the pond to be equipped with the valve on the connecting tube between leakage fluid dram and pond.

Furthermore, in the paint spraying chamber waste gas treatment device, valves are arranged on a connecting pipeline between the water pump and the water pool and a connecting pipeline between the water pump and the spray tower.

Furthermore, according to the paint spraying chamber waste gas treatment device, the upper end of the water tank is provided with the plurality of filter layers, and the first filter layer at the top end of each filter layer is provided with the coagulant. The coagulant can change the adhesion condition of the paint mist, so that the paint mist is formed into slag blocks, and the wastewater is further purified.

Further, in the paint spray chamber waste gas treatment device, the demister is a baffle type demister, and the demister is provided with two defoaming layers. Removing the mist through a demister.

Further, foretell spray booth exhaust treatment device, photolysis purifier is UV catalysis photolysis purifier. The photolysis purification device can remove organic pollutants in the waste gas and convert the organic pollutants into low molecular chemical substances such as carbon dioxide and water through photolysis and oxidation.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has:

1. the spray booth waste gas treatment device of the utility model, the spray tower, the water pump and the water pool are connected with each other to form a water recycling loop, the waste water in the spray tower flows into the water pool for filtering and purifying, the water pump introduces the filtered clean water into the water inlet of the spray tower for spraying the organic waste gas for paint spraying, thereby realizing the recycling of water, avoiding the waste of water resources, saving cost, saving energy and protecting environment;

2. paint spray booth exhaust treatment device, through wet cyclone, demister, photodissociation purifier, dry-type filter, the harmful substance in the spray column combination fully gets rid of waste gas, exhaust-gas treatment is efficient, improves the exhaust purification degree.

Drawings

FIG. 1 is a schematic structural view of a paint spray booth exhaust treatment device according to the present invention;

in the figure: 1 air inlet, 2 wet cyclone separators, 3 defoamers, 4 photolysis purification devices, 5 dry filters, 6 spray towers, 61 water inlets, 62 waste gas inlets, 63 air outlets, 64 liquid outlets, 65 spray headers, 7 water pumps, 8 water tanks and 81 first-layer filter layers.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

As shown in fig. 1, a paint spray booth exhaust treatment device, including air inlet 1, wet cyclone 2, demister 3, photolysis purifier 4, dry filter 5, spray tower 6, water pump 7 and

pond

8, 2 hypomere of wet cyclone is located to air inlet 1, the gas outlet on 2 tops of wet cyclone is connected with demister 3 air inlets, 2 bottom exports of wet cyclone are connected with pond 8, demister 3 is connected with photolysis purifier 4, photolysis purifier 4 is connected with dry filter 5, dry filter 5 is connected with spray tower 6,

water pump

7, 8 interconnect in pond constitute water cycle recycle return circuit. Through the combination of wet cyclone 2, demister 3, photodissociation purifier 4, dry-type filter 5, spray column 6 fully get rid of the harmful substance in the waste gas, exhaust-gas treatment is efficient, recycles waste water centralized treatment through waste water circulation, filters purification waste water, avoids the waste of water resource and the improvement of cost.

Example 2

pond

water pump

Further, in the above paint spray booth waste gas treatment device, the spray tower 6 is provided with a plurality of groups of spray headers 65, and the spray tower 6 is provided with corresponding water inlets 61 at each group of spray headers 65.

Further, in the above paint spray booth exhaust gas treatment device, the lower end of the spray header 65 at the bottom end of the spray tower 6 is provided with the exhaust gas inlet 62, and the exhaust gas inlet 62 is connected with the dry filter 5. The waste gas inlet 62 is arranged at the lower end of the spray header 65, so that the waste gas is in contact with and merged with the spray water more fully.

Further, in the above paint spraying chamber waste gas treatment device, the top end of the spray tower 6 is provided with an air outlet 63, and the air outlet 63 is provided with an exhaust fan. The air purified by the spray tower 6 is exhausted out of the spray booth by the exhaust fan.

Further, in the above paint spraying chamber waste gas treatment device, the bottom end of the spray tower 6 is provided with the liquid outlet 64, the liquid outlet 64 is connected with the water tank 8, and a valve is arranged on a connecting pipeline between the liquid outlet 64 and the water tank 8.

Furthermore, in the paint spray booth exhaust gas treatment device, valves are arranged on a connecting pipeline between the water pump 7 and the water tank 8 and a connecting pipeline between the water pump 7 and the spray tower 6.

Further, in the paint spray booth exhaust gas treatment device, the upper end of the water tank 8 is provided with a plurality of filter layers, and the first filter layer 81 at the top end of each filter layer is provided with a coagulant. The coagulant can change the adhesion condition of the paint mist, so that the paint mist is formed into slag blocks, and the wastewater is further purified.

Further, in the above paint spray booth exhaust gas treatment device, the demister 3 is a baffle type demister, and the demister 3 is provided with two defoaming layers. The mist is removed by the demister 3.

Further, in the paint spray booth exhaust gas treatment device, the photolysis purification device 4 is a UV catalytic photolysis purification device. The photolysis purification device 4 can remove organic pollutants in the waste gas, and photolyze and oxidize the organic pollutants into low molecular chemical substances such as carbon dioxide and water.

Paint spray booth exhaust treatment device's theory of operation do: waste gas in a spray booth enters a wet cyclone separator 2 through an air inlet 1, the wet cyclone separator 2 separates liquid and solid paint mist with large particles in the waste gas, the separated liquid and solid paint mist flows into a water tank 8 through an outlet at the bottom end, and the rest waste gas enters a demister 3 through an outlet at the top end of the wet cyclone separator 2; the demister 3 further removes the mist; entering a photolysis purification device 4, and performing photolysis oxidation on the organic pollutants in the waste gas by the photolysis purification device 4 to convert the organic pollutants into low-molecular chemical substances such as carbon dioxide, water and the like; entering a dry filter 5, wherein the dry filter 5 can further remove dust and paint mist; the waste water enters a spray tower 6, acid oxides formed by oxidizing organic pollutants are removed through the spray tower 6, the purified waste gas is discharged out of a spray room through an exhaust port 63, and the waste water flows into a water tank 8 through a liquid outlet 64; the wastewater flowing into the water tank 8 is filtered and purified by a filter layer and flows into the bottom of the water tank 8; the water pump 7 introduces the filtered clean water into the water inlet 61 of the spray tower to be used as spray water to come out from the spray header 65 for spray treatment, so that the water is recycled.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a paint spray booth exhaust treatment device which characterized in that: including air inlet (1), wet cyclone (2), demister (3), photodissociation purifier (4), dry-type filter (5), spray column (6), water pump (7) and pond (8), wet cyclone (2) hypomere is located in air inlet (1), the gas outlet and the demister (3) air inlet on wet cyclone (2) top are connected, wet cyclone (2) bottom export is connected with pond (8), demister (3) are connected with photodissociation purifier (4), photodissociation purifier (4) are connected with dry-type filter (5), filter (5) are connected with spray column (6), water pump (7), pond (8) interconnect group water cyclic utilization return circuit.

2. The paint spray booth exhaust treatment device of claim 1, wherein: the spray tower (6) is provided with a plurality of groups of spray headers (65), and the spray tower (6) is provided with corresponding water inlets (61) at each group of spray headers (65).

3. The paint spray booth exhaust treatment device of claim 2, wherein: and a waste gas inlet (62) is formed in the lower end of a spray header (65) at the bottommost end of the spray tower (6), and the waste gas inlet (62) is connected with the dry filter (5).

4. The paint spray booth exhaust treatment device of claim 2, wherein: the top end of the spray tower (6) is provided with an air outlet (63), and the air outlet (63) is provided with an exhaust fan.

5. The paint spray booth exhaust treatment device of claim 3, wherein: the bottom end of the spray tower (6) is provided with a liquid outlet (64), the liquid outlet (64) is connected with the water pool (8), and a valve is arranged on a connecting pipeline between the liquid outlet (64) and the water pool (8).

6. The paint spray booth exhaust treatment device of claim 1, wherein: and valves are arranged on a connecting pipeline between the water pump (7) and the water pool (8) and a connecting pipeline between the water pump (7) and the spray tower (6).

7. The paint spray booth exhaust treatment device of claim 1, wherein: the upper end of the water tank (8) is provided with a plurality of filtering layers, and the first filtering layer (81) at the top end of each filtering layer is provided with a coagulant.

8. The paint spray booth exhaust treatment device of claim 1, wherein: the demister (3) is a baffle type demister, and the demister (3) is provided with two defoaming layers.

9. The paint spray booth exhaust treatment device of claim 1, wherein: the photolysis purification device (4) is a UV catalytic photolysis purification device.