CN204448403U - A kind of paint line device for purifying and treating tail gas - Google Patents

Abstract

The utility model relates to a tail gas purification treatment device of a painting production line. The paint mist and exhaust gas in the painting production line are first passed through a ground grid 1, through a pit channel 2, and then by a spray pipeline 3 and a water pool through an exhaust fan 10. The spray pipe 6 is washed twice, and then fully adsorbed by the large-scale multi-layer, staggered, trapezoidal activated carbon filter 9, and finally discharged by the straight air pipe 11 up to the standard. Its advantages are high efficiency in absorbing paint mist exhaust gas, improving the working environment, ensuring the performance of the equipment, and reducing operating costs.

Description

A coating production line tail gas purification treatment device

technical field

The utility model relates to a post-treatment tail gas purification treatment device in a large-scale painting production line, in particular to a tail gas purification treatment device for a painting production line.

Background technique

At present, most of the post-treatment exhaust gas purification in the coating industry is treated with paint mist, which is filtered by sheet non-woven fabric and sheet activated carbon filtration. The filter area is small, the wind speed is high, the adsorption rate is low, the replacement frequency is high, and the paint mist exhaust gas treatment capacity relatively low.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the above-mentioned deficiencies in the prior art and provide a tail gas purification treatment device for a coating production line, which greatly improves the treatment rate of paint mist waste gas, improves the working environment of workers, and ensures that the equipment Use performance.

The technical solution of the utility model is: including a paint spraying room 13, a circulating pool 4, a water pump 5, an air collecting box 8, a purification room 12 and an exhaust tube 11, and the lower side of the paint spraying room 13 is provided with a ground grille 1 and a pit air Road 2, an exhaust fan 10 is provided in the exhaust duct 11, and the pit air duct 2 and the circulating pool 4 are located underground, and it is characterized in that: the air collecting box 8 and the spray booth 13 are connected through the pit air duct 2 and the pool 4. The pit air channel 2 is provided with a vertically arranged pit spray pipeline 3, and the air collecting box 8 on the upper side of the circulating pool 4 is provided with a horizontally arranged pool spray pipeline 6. Both the shower pipeline 3 and the pool spray pipeline 6 communicate with the circulating pool 4 through the water pump 5 and are recycled; the upper end of the pool spray pipeline 6 in the air collecting box 8 is provided with a horizontally arranged, plate-shaped paint mist filter cotton 7; the clean room 12 is located between the air collection room 8 and the exhaust tube 11, and the clean room 12 is provided with an activated carbon filter 9; the activated carbon filter 9 is a multi-layer staggered trapezoidal setting, and the layer is used between the layers. The sloping plates are separated so that the section is "Z" shaped.

Evenly arranged nozzles are arranged on the pit spray pipeline 3 and the pool spray pipeline 6 .

The pool spray pipeline 6 in the wind collecting box 8 is arranged in parallel with the paint mist filter cotton 7 .

The ground of pit air duct 2 is inclined.

Compared with the prior art, the utility model has the following advantages:

1. The exhaust gas purification treatment device of the coating production line can carry a greater working wind speed, and the pressure loss is small, which improves the exhaust gas treatment capacity of the coating production line;

2. Two water spray washing, one paint mist filter cotton adsorption and multi-layer activated carbon filter enlarge the adsorption area, enhance the adsorption capacity, increase the tail gas treatment capacity, improve the working environment and ensure the performance of the equipment ;

3. Paint mist filter cotton and multi-layer activated carbon filter can be conveniently replaced regularly;

4. The multi-layer activated carbon filter can be used repeatedly after regeneration treatment, reducing operating costs.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model.

Among them: 1-ground grille, 2-pit air duct, 3-pit spray pipeline, 4-circulating pool, 5-water pump, 6-pool spray pipeline, 7-paint mist filter cotton, 8- Air collection box, 9-multi-layer activated carbon filter, 10-exhaust fan, 11-exhaust pipe, 12-clean room, 13-painting room.

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is described in further detail:

The utility model includes a paint spraying room 13, a circulating pool 4, a water pump 5, an air collecting box 8, a clean room 12 and an exhaust tube 11. The lower side of the paint spraying room 13 is provided with a ground grille 1 and a pit air duct 2, and the exhaust tube Exhaust fan 10 is arranged in 11, pit air duct 2 and circulating pool 4 are arranged underground, and wind collecting box 8 and spray booth 13 are communicated by pit air duct 2 and pool 4.

The pit air duct 2 is provided with a vertically arranged pit spray pipeline 3, the air collecting box 8 on the upper side of the circulating pool 4 is provided with a horizontally arranged pool spray pipeline 6, and the pit spray pipeline 3 And the water pool spray pipeline 6 all communicates with the circulating water pool 4 through the water pump 5, and can make the water in the circulating water pool 4 be recycled. Evenly arranged nozzles are arranged on the pit spray pipeline 3 and the pool spray pipeline 6 .

The upper end of the pool spray pipeline 6 in the air collecting box 8 is provided with a horizontally arranged, plate-shaped paint mist filter cotton 7 , and the paint mist filter cotton 7 is arranged in parallel with the pool spray pipeline 6 .

The clean room 12 is arranged between the air collection room 8 and the exhaust tube 11 , and an activated carbon filter 9 is arranged in the clean room 12 . The activated carbon filter 9 is arranged in a multi-layer staggered trapezoidal shape, and the layers are separated by inclined plates so that the cross-section is in a "Z" shape.

The ground of the pit air duct 2 is set to be inclined, so that the water in the pit spray pipeline 3 can flow smoothly into the circulating pool 4 .

When the utility model is working, the paint mist and exhaust gas in the coating production line are firstly passed through the ground grid 1 through the exhaust fan 10, then through the pit channel 2, sprayed for the first time through the pit spray pipeline 3, and then passed through The pool spray pipeline 6 is washed, and the mist and dust of large particles in the tail gas of the production line can be washed in water. The pit spraying pipeline 3 and the pool spraying pipeline 6 are pumped by the water pump 5 to pump the water in the circulating pool 4 into each spraying tube to wash and atomize the exhaust gas of the coating production line; The paint mist tail gas is further absorbed by the paint mist filter cotton 7 and enters the wind collecting box 8, then further adsorbed by the multi-layer activated carbon filter 9, and then discharged through the exhaust fan 10 and the exhaust pipe 11 up to the standard.

Since the activated carbon filter 9 is arranged in a multi-layer staggered trapezoidal shape, the surface area of the activated carbon increases. Under the condition of a certain air volume, the adsorption area of the paint mist exhaust gas is increased, and the wind speed of ventilation is reduced at the same time. The time for the paint mist tail gas generated by the production line to be filtered by activated carbon is prolonged, thereby improving the adsorption rate of the tail gas.

Claims (4)

1. a paint line device for purifying and treating tail gas, it is characterized in that: comprise paint spray booth (13), circulating water pool (4), water pump (5), air collecting box (8), clean room (12) and exhaust tube (11), the downside of paint spray booth (13) is provided with floor grating (1) and melt pit air channel (2), exhaust blower (10) is provided with in exhaust tube (11), melt pit air channel (2) and circulating water pool (4) are located at underground, it is characterized in that: make it to communicate by melt pit air channel (2) and pond (4) between air collecting box (8) with paint spray booth (13), wherein be provided with the melt pit spray pipeline (3) of vertically arrangement in melt pit air channel (2), the pond spray pipeline (6) horizontally arranged is provided with in the air collecting box (8) of circulating water pool (4) upside, melt pit spray pipeline (3) and pond spray pipeline (6) are all communicated with circulating water pool (4) by water pump (5), and recycle, in air collecting box (8), the upper end in pond spray pipeline (6) is provided with coating cloud filter cotton (7) that is horizontally disposed, tabular, clean room (12) is located between wind assembling set (8) and exhaust tube (11), is provided with active carbon filter (9) in clean room (12), described active carbon filter (9) is the trapezoidal setting of multilayer staggered, separates between layers with swash plate, makes it cross section in " Z " shape.

2. a kind of paint line device for purifying and treating tail gas as claimed in claim 1, is characterized in that: melt pit spray pipeline (3) and pond spray pipeline (6) are equipped with evenly distributed nozzle.

3. a kind of paint line device for purifying and treating tail gas as claimed in claim 1, is characterized in that: the pond spray pipeline (6) in air collecting box (8) and coating cloud filter cotton (7) be arranged in parallel.

4. a kind of paint line device for purifying and treating tail gas as claimed in claim 1, is characterized in that: the ground of melt pit air channel (2) is tilting.