CN212188401U

CN212188401U - Paint spraying waste gas treatment equipment

Info

Publication number: CN212188401U
Application number: CN202020413658.6U
Authority: CN
Inventors: 邢明敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-22
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a paint spraying waste gas treatment equipment, including spray column, active carbon adsorption device, the blast pipe that connects gradually, be provided with the draught fan on the blast pipe, spray column has set gradually spray set, cyclone, circulation tank down from last, spray set passes through the water pump and links to each other with circulation tank, and the spray set below is provided with the packing layer, be provided with the air intake on the cyclone lateral wall, the bottom is equipped with the fluid-discharge tube of being connected with circulation tank. The utility model provides a waste gas treatment equipment that sprays paint that purification efficiency is high, rational in infrastructure.

Description

Paint spraying waste gas treatment equipment

Technical Field

The utility model relates to a waste gas treatment equipment sprays paint belongs to environmental protection equipment technical field.

Background

Paint spraying waste gas is generated on a paint spraying workbench for coating a workpiece, most of paint sprayed by high-pressure air is left on the workpiece, other paint mist dust is brought out along with the waste gas, the dust content is not high, the particle size is small, most of the dust is below 10 micrometers, and if the dust is not treated, the dust directly enters activated carbon adsorption equipment for adsorption, so that activated carbon is easily blocked, and the treatment effect is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem that a paint spraying exhaust-gas treatment equipment is provided, can carry out high-efficient purification treatment to paint waste gas, reduce the emergence of the active carbon adsorption equipment active carbon blocking condition, can solve the not enough of prior art.

The technical scheme of the utility model is that: the utility model provides a paint spraying waste gas treatment equipment, is including spray column, active carbon adsorption device, the blast pipe that connects gradually, be provided with the draught fan on the blast pipe, spray column has set gradually spray set, cyclone, circulation tank from last to down, spray set passes through the water pump and links to each other with circulation tank, and the spray set below is provided with the packing layer, be provided with the air intake on the cyclone lateral wall, the bottom is equipped with the fluid-discharge tube of being connected with circulation tank. Under the effect of the induced draft fan, paint spraying waste gas firstly enters a cyclone separator in the spray tower to generate a cyclone effect, the paint spraying waste gas is fully contacted with water sprayed on the packing layer, the paint spraying waste gas is discharged from the top of the spray tower, the paint spraying waste gas is adsorbed by the activated carbon adsorption device and then discharged through the exhaust pipe, the sprayed water is collected by the cyclone separator and then falls into the circulating water tank through the discharge pipe, and the sprayed water is pumped by the water pump to the spray device for recycling.

Furthermore, a filter layer is arranged in the circulating water tank, the inside of the circulating water tank is separated into a left cavity and a right cavity by the filter layer, a liquid discharge pipe at the bottom of the cyclone separator is connected with the left cavity, and the water pump is connected with the right cavity. The sprayed water falls into the left cavity of the circulating water tank, contains more impurities, flows into the right cavity after being filtered by the filter layer, is pumped to the spraying device by the water pump for recycling, so that the sprayed water is kept clean, and the spraying purification effect is improved.

Further activated carbon adsorption device is including being equipped with the box that both ends branch was equipped with export and import, the several draw-in groove has been seted up on the box lateral wall, every draw-in groove department sliding connection has the net frame, the net frame distributes along box transverse section, and the intussuseption of net frame is filled with activated carbon. The waste gas that sprays paint after spraying is filled the screen frame that has active carbon through the several when importing to the export from the box and is filtered, improves the purifying effect of the waste gas that sprays paint greatly, and sliding connection's screen frame is easy to assemble and change.

The liquid redistribution device comprises a liquid collector and a liquid redistributor. When liquid flows downwards along the packing layer, the liquid tends to concentrate towards the tower wall gradually, so that the liquid flow near the tower wall is gradually increased, the wall flow phenomenon is caused, gas and liquid phases are unevenly distributed in the packing layer, the mass transfer efficiency is reduced, the packing layer is divided into two layers and an upper layer, a liquid redistribution device is arranged between the two adjacent packing layers, the liquid under the upper layer of packing layer flows is sent to a liquid redistributor after passing through a liquid collector, and the wall flow phenomenon can be effectively eliminated after being redistributed and sprayed onto the lower layer of packing, so that the mass transfer efficiency is improved.

To sum up, the utility model provides a waste gas treatment equipment that sprays paint that purification efficiency is high, rational in infrastructure.

Drawings

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

fig. 2 is a schematic structural diagram of an activated carbon adsorption device.

Shown in the figure: a spray tower 1; an activated carbon adsorption device 2; an exhaust pipe 3; a draught fan 4; a spraying device 5; a cyclone separator 6; a circulating water tank 7; a water pump 8; a left cavity 9; a right cavity 10; a filter layer 11; a filler layer 12; a drain pipe 13; a liquid redistributor 14; a liquid collector 15; liquid redistribution means 16; a screen frame 17; a case 18; a card slot 19; a guide rail 20; an air inlet 21.

Detailed Description

The embodiment of the utility model provides a: as shown in fig. 1 to 2, a paint spraying waste gas treatment device comprises a spray tower 1, an activated carbon adsorption device 2 and an exhaust pipe 3 which are connected in sequence, wherein an induced draft fan 4 is arranged on the exhaust pipe 3, the spray tower 1 is sequentially provided with a spray device 5, a cyclone separator 6 and a circulating water tank 7 from top to bottom, the spray device 5 is connected with the circulating water tank 7 through a water pump 8, a filler 12 layer is arranged below the spray device 5, an air inlet 21 is arranged on the side wall of the cyclone separator 6, and a liquid discharge pipe 13 connected with the circulating water tank 7 is arranged at the bottom. Under the effect of the draught fan 4, paint spraying waste gas firstly enters the cyclone separator 6 in the spray tower 1 to generate a cyclone effect, the paint spraying waste gas is fully contacted with water sprayed on the packing layer 12, then the paint spraying waste gas is discharged from the top of the spray tower 1, is adsorbed by the activated carbon adsorption device 2 and then is discharged through the exhaust pipe 3, and the sprayed water is collected by the cyclone separator 6, falls into the circulating water tank 7 through the liquid discharge pipe 13 and is pumped to the spray device 5 through the water pump 8 for recycling.

A filter layer 11 is arranged in the preferential circulating water tank 7 of the embodiment, the filter layer 11 separates the inside of the circulating water tank 7 into a left cavity 9 and a right cavity 10, a liquid discharge pipe 13 at the bottom of the cyclone separator 6 is connected with the left cavity 9, and a water pump 8 is connected with the right cavity 10. The sprayed water falls into the left cavity 9 of the circulating water tank 7, contains more impurities, flows into the right cavity 10 after being filtered by the filter layer 11, is pumped to the spraying device 5 by the water pump 8 for reuse, keeps the sprayed water clean, and improves the purification effect of spraying.

The preferential active carbon adsorption equipment 2 of this embodiment is including being equipped with the box 18 that both ends branch was equipped with export and import, has seted up several draw-in groove 19 on the box 18 lateral wall, and every draw-in groove 19 department sliding connection has net frame 17, is provided with in the box 18 with net frame 17 frame matched with guide rail 20, but net frame 17 removes along 18 transverse section of box, and the intussuseption of net frame 17 is filled with active carbon. The waste gas after spraying is filled with the screen frame 17 of active carbon through the several when 18 imports to the export from the box and filters, improves the purifying effect of the waste gas that sprays paint greatly, and sliding connection's screen frame 17 is easy to assemble and change.

The preferred packing layers 12 of this embodiment are two or more layers, and a liquid redistribution device 16 is disposed between two adjacent packing layers 12, and the liquid redistribution device 16 includes a liquid collector 15 and a liquid redistributor 14. When liquid flows downwards along the packing layer 12, the liquid tends to concentrate towards the tower wall gradually, so that the liquid flow near the tower wall is increased gradually, the wall flow phenomenon is caused, the gas phase and the liquid phase are distributed unevenly in the packing layer 12, the mass transfer efficiency is reduced, the packing layer 12 is divided into two layers and is arranged on the two layers, a liquid redistribution device 16 is arranged between the two adjacent packing layers 12, the liquid under the upper layer of packing layer flows passes through the liquid collector 15 and is sent to the liquid redistributor 14, and the wall flow phenomenon can be effectively eliminated after the liquid is redistributed and is sprayed on the lower layer of packing, so that the mass transfer efficiency is improved.

Claims

1. The utility model provides a paint spraying waste gas treatment equipment which characterized in that: including spray column, active carbon adsorption device, the blast pipe that connects gradually, be provided with the draught fan on the blast pipe, spray column has set gradually spray set, cyclone, circulation tank from last to down, spray set passes through the water pump and links to each other with circulation tank, and the spray set below is provided with the packing layer, be provided with the air intake on the cyclone lateral wall, the bottom is equipped with the fluid-discharge tube of being connected with circulation tank.

2. The painting exhaust gas treatment apparatus according to claim 1, characterized in that: the cyclone separator is characterized in that a filter layer is arranged in the circulating water tank, the filter layer separates the inside of the circulating water tank into a left cavity and a right cavity, a liquid discharge pipe at the bottom of the cyclone separator is connected with the left cavity, and the water pump is connected with the right cavity.

3. The painting exhaust gas treatment apparatus according to claim 1, characterized in that: the activated carbon adsorption device comprises a box body, wherein an outlet and an inlet are respectively formed in two ends of the box body, a plurality of clamping grooves are formed in the side wall of the box body, each clamping groove is slidably connected with a net frame, the net frames are distributed along the transverse cross section of the box body, and activated carbon is filled in the net frames.

4. The painting exhaust gas treatment apparatus according to claim 1, characterized in that: the packing layer is two-layer and more than, is provided with liquid redistribution device between two adjacent packing layers, liquid redistribution device includes liquid collector and liquid redistributor.