CN203635057U - Washing tower for treating low-radiation film coating tail gas - Google Patents

Abstract

The utility model relates to a washing tower for treating low-radiation coating tail gas, which comprises a tower body (1), an air outlet (4) is arranged at the upper end of the tower body, a sewage outlet (6) is arranged at the lower end of the tower body, and There is also an air inlet (3) on the side wall of the tower, and the tower body is connected to the lye source (2) through the spray pipe (5). The zone (11) is set above the air inlet (3); the air distribution plate (8) is connected with the tower body, and the air flow distribution plate is set between the lowermost spraying area and the air inlet. The utility model has the advantages that the device has high stability, simple operation, safety and reliability, and convenient maintenance. It adopts a multi-layer spray area with different fillers to achieve a better purification effect.

Description

A scrubber for treating low-radiation coating tail gas

technical field

The utility model relates to a washing tower, in particular to a washing tower used for treating low-radiation coating tail gas.

Background technique

In recent years, with the continuous development of urban industries, air pollution has become increasingly serious, and air quality has further deteriorated. Environmental problems have become global problems. The scrubber is a new type of gas purification treatment equipment, which is widely used in an important link in the purification treatment of industrial waste gas. The composition of the high-temperature exhaust gas produced by low-radiation online coating production is relatively complex, containing acidic substances and large dust, and foam is generated during the washing process. If it is discharged directly, it will cause serious pollution to the environment. Therefore, before discharging the exhaust gas Purification treatment must be carried out to effectively cool and purify the flue gas before it is discharged, which is conducive to the sustainable development of the environment. This requires that the scrubber for online coating tail gas purification has good stability, safety and efficiency, low operating cost, and can handle high-temperature, highly corrosive, and complex-composition exhaust gas. After extensive searching, a comparatively ideal technical solution has not been found yet.

Utility model content

The purpose of this utility model is to solve the shortcomings of low efficiency of the existing scrubbers in processing high-temperature, acidic, dust-containing and fluorine-containing coating exhaust gases at the present stage, and propose a scrubber for processing low-radiation coating exhaust gases. .

In order to achieve the above object, the utility model adopts the following technical solutions:

A washing tower for treating low-radiation coating exhaust gas, comprising a tower body, an air outlet is provided at the upper end of the tower body, a sewage outlet is provided at the lower end, an air inlet is also provided on the side wall at the lower end of the tower body, and the tower body The lye source is connected through a spray pipe, which is characterized in that:

a. A group of spraying areas are arranged successively in the tower body, and the spraying areas are all arranged above the air inlet. The spraying areas include a packing layer, and a spraying pipe is set correspondingly above the packing layer. There are openings corresponding to the packing layer;

b. An air distribution plate is also connected to the tower body, and a group of ventilation holes are evenly distributed on the air distribution plate, and the air distribution plate is arranged between the spray area and the air inlet at the bottom.

On the basis of above-mentioned technical scheme, can have following further technical scheme:

The packing layer includes a net bag, and a packing material is arranged in the net bag, and the net bag is matched and connected on the inner wall of the tower body. The packing material of the uppermost packing layer is a group of metal Pall rings, and the packing materials of the other packing layers are A set of metal taylor wreaths.

There is also a group of inspection ports on the tower body, and the inspection ports are respectively matched with the corresponding spraying areas.

The lower end of the tower body is a conical funnel structure, and a sewage outlet is arranged at the bottom of the funnel structure.

The claimed tower body is cylindrical, and the conical sewage outlet at the bottom of the tower body can facilitate the products produced after the gas-liquid reaction to slide down on the inclined tower wall and then be discharged from the sewage outlet.

After the coating tail gas enters the tower body from the air inlet, under the action of the air distribution plate, the coating tail gas is evenly distributed up, so that the upper spray area can evenly contact with the coating tail gas.

The device is equipped with three spray areas, the two spray areas below have the same structure, and the packing layer adopts metal Taylor rosette water-absorbing components, which are used to further increase the residence time of liquid in the tower, thereby increasing the contact time of gas and liquid , improve purification efficiency. The packing layer in the uppermost spraying area adopts metal Pall rings. Under the action of gravity, the foam produced by the gas-liquid reaction is easily adsorbed on the Pall rings, reducing the foam being carried out of the tower with the rising air flow.

The inspection port is arranged in the middle of the three spray areas, which facilitates the cleaning and replacement of the packing layers in the three spray areas and the maintenance of the spray pipes.

The utility model has the advantages that the device has high stability, simple operation, safety and reliability, and convenient maintenance, and adopts multiple layers of spraying areas with different fillers to achieve a better purification effect.

Description of drawings

Fig. 1 is the basic structural representation of the utility model;

Fig. 2 is a side view of Fig. 1;

Fig. 3 is a perspective view of the utility model.

Detailed ways

As shown in Figure 1, a washing tower for treating low-radiation coating tail gas provided by the utility model includes a cylindrical tower body 1, an air outlet 4 is provided at the upper end of the tower body 1, and a sewage outlet is provided at the lower end 6. There is also an air inlet 3 on the side wall at the lower end of the tower body 1. The tower body 1 is connected to the lye source 2 through the spray pipe 5, and the lye source 2 uses the lye pump to pass the lye into the lye from the spray pipe. In the tower body, it is characterized in that:

a. As shown in Fig. 3, three spray areas 11 are successively arranged in the tower body 1, and the spray areas 11 are all arranged above the air inlet 3, and the spray areas 11 include a packing layer 11a, the The packing layer 11a of the packing layer includes a net bag 13, and a packing material is arranged in the net bag 13. The net bag 13 is matched and connected on the inner wall of the tower body 1, and the packing material of the top packing layer 11a is a group of metal Pall rings 10, and the lower two layers The filler of the filler layer 11a is a group of metal Taylor rosettes 9 . A spray pipe 5 is correspondingly arranged above each packing layer 11a, and a group of openings are evenly distributed on the spray pipe 5 in the tower body 1, and the openings are correspondingly matched with the packing layer 11a, and the openings are circular openings. hole.

b. A circular air distribution plate 8 is also connected in the tower body 1, and a group of ventilation holes 12 are evenly distributed on the air distribution plate 8. The air distribution plate 8 is arranged on the lowermost spray area 11 and the air inlet. between 3.

c. As shown in FIG. 2 , a group of inspection ports 7 are also provided on the tower body 1 , and the inspection ports 7 are matched with corresponding spray areas 11 respectively. The lower end of the tower body 1 is a conical funnel structure, and a sewage outlet 6 is arranged at the bottom of the funnel structure.

Claims (4)

1. A washing tower for treating low-radiation coating tail gas, comprising a tower body (1), an air outlet (4) is provided at the upper end of the tower body (1), and a sewage outlet (6) is provided at the lower end. (1) There is also an air inlet (3) on the side wall of the lower end, and the tower body (1) is connected to the lye source (2) through the spray pipe (5), which is characterized in that: a. A group of spraying areas (11) are arranged sequentially in the tower body (1), and the spraying areas (11) are all set above the air inlet (3), and the spraying areas (11) include packing layers (11a), a spray pipe (5) is correspondingly arranged above the packing layer (11a), and an opening corresponding to the packing layer (11a) is provided on the spray pipe (5); b. The air distribution plate (8) is also connected to the tower body (1), and a group of air holes (12) are evenly distributed on the air distribution plate (8), and the air distribution plate (8) is set at the bottom of the spray Between zone (11) and air inlet (3). 2. A washing tower for treating low-E coating tail gas according to claim 1, characterized in that: the packing layer (11a) includes a net bag (13), and packing materials are arranged in the net bag (13) , the net bag (13) is matched and connected on the inner wall of the tower body (1), the packing material of the uppermost packing layer (11a) is a group of metal Pall rings (10), and the packing materials of the other packing layers (11a) are A set of metal taylor wreaths (9). 3. A washing tower for treating low-radiation coating tail gas according to claim 1, characterized in that: a set of inspection ports (7) are provided on the tower body (1), and the inspection ports (7) are respectively connected with Corresponding spray area (11) corresponds to cooperate. 4. A washing tower for treating low-radiation coating tail gas according to claim 1, characterized in that: the lower end of the tower body (1) is a conical funnel structure, and sewage is arranged at the bottom of the funnel structure exit (6).

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