Washing tower for waste gas treatment

Abstract

The utility model discloses a washing tower for waste gas treatment, which belongs to the technical field of washing towers and comprises a tower body, a liquid recovery chamber, a first treatment chamber and a second treatment chamber are sequentially arranged in the tower body from bottom to top, and a gas inlet pipe and a first spraying component are arranged on the outer side of the first treatment chamber. A baffle is arranged in the first treatment chamber and located above the gas outlet end, filler layers are arranged on the left side and the right side of the baffle, a second spraying assembly is arranged on the left side of the baffle, an activated carbon layer is arranged in the second treatment chamber, an exhaust pipe is arranged on the top face of the second treatment chamber, and a filter screen is arranged in the liquid recovery chamber. And supporting legs are arranged below the liquid recovery chamber. Waste gas enters the first treatment chamber and passes through the packing layer twice, so that the transmission distance of the waste gas in the washing tower is prolonged, the contact time of the waste gas and the packing layer is prolonged, the waste gas can fully react with packing, and the waste gas can fully and completely react in the washing tower.

Description

Technical Field

[0001] The utility model relates to the technical field of washing towers, in particular to a washing tower for waste gas treatment. Background Art

[0002] At present, in chemical production, various chemicals react with each other, resulting in various waste gases in the process of reaction. These waste gases need to be treated to meet the standards before they can be discharged. The existing method of treating waste gases generally uses a scrubber. When the gas contains more harmful substances, the waste gas directly passes through the packing area from bottom to top. Some of the harmful substances in the waste gas are not fully reacted with the substances on the packing area before being directly discharged. The quality of waste gas treatment is low, affecting environmental hygiene. Utility Model Content

[0003] The utility model aims to provide a washing tower for waste gas treatment, so as to solve the problem that when the gas contains a large amount of harmful substances, the waste gas directly passes through the packing area from bottom to top, and some of the harmful substances in the waste gas are directly discharged without fully reacting with the substances on the packing area, resulting in low quality of waste gas treatment and affecting environmental hygiene.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a washing tower for waste gas treatment, comprising a tower body, wherein the interior of the tower body is sequentially arranged as a liquid recovery chamber, a first treatment chamber, and a second treatment chamber from bottom to top, an air inlet pipe is arranged on the outside of the first treatment chamber, a first spray assembly is arranged in the air inlet pipe, an air outlet end of the air inlet pipe is arranged at the rear side of the first treatment chamber, a baffle is arranged inside the first treatment chamber and above the air outlet end, a packing layer is arranged on the left and right sides of the baffle, the packing layer is located below the air outlet end, a second spray assembly is arranged on the left side of the baffle, an activated carbon layer is arranged inside the second treatment chamber, an exhaust pipe is arranged on the top surface of the second treatment chamber, a filter is arranged inside the liquid recovery chamber, and supporting legs are arranged below the liquid recovery chamber.

[0006] Furthermore, the first spray assembly includes a first liquid delivery pipe, which is arranged above the air inlet pipe, and a plurality of spray pipes are connected below the first liquid delivery pipe. The spray pipes extend to the inside of the air inlet pipe and are connected to the first spray head.

[0007] Furthermore, the cross section of the baffle is set to be L-shaped.

[0008] Furthermore, the second spray assembly includes a spray plate, which is arranged on the left side of the baffle, and a plurality of second spray heads are installed on the bottom surface of the spray plate. A solution containing box is arranged on the outside of the liquid recovery chamber, and a booster pump is installed behind the solution containing box. One end of the booster pump is connected to the solution containing box, and the other end of the booster pump is connected to the spray plate through a second liquid delivery pipe.

[0009] Furthermore, the activated carbon layer includes a holding plate, the holding plate is arranged inside the second treatment chamber, a plurality of air holes are opened on the holding plate, and the top surface of the holding plate is paved with activated carbon particles.

[0010] Furthermore, an observation window is arranged in front of the liquid recovery chamber, a first side door is arranged in front of the first processing chamber, and a second side door is arranged in front of the second processing chamber.

[0011] Compared with the prior art, the beneficial technical effects of the utility model are:

[0012] According to the utility model, waste gas enters the first treatment chamber, cannot move upward due to the blocking effect of the baffle, and can only move downward into the packing layer, where the waste gas is treated, and then enters the liquid recovery chamber and then moves upward through the packing layer again. The waste gas passes through the packing layer twice, which extends the transmission distance of the waste gas in the washing tower and increases the contact time between the waste gas and the packing layer, so that the waste gas can fully react with the packing, and the waste gas can fully react completely in the washing tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a washing tower for waste gas treatment of the utility model;

[0015] Figure 2 This is a front view of the waste gas treatment washing tower of the utility model;

[0016] Figure 3 This is a rear view of the waste gas treatment washing tower of the utility model;

[0017] Figure 4 It is a top view of the washing tower for waste gas treatment of the utility model;

[0018] Figure 5 It is a cross-sectional view of the utility model along the AA direction.

[0019] Explanation of the accompanying drawings: 1. tower body; 1-1. liquid recovery chamber; 1-2. first treatment chamber; 1-3. second treatment chamber; 2. air inlet pipe; 201. air outlet; 3. exhaust pipe; 4. first liquid delivery pipe; 5. spray pipe; 6. first spray head; 7. baffle; 8. packing layer; 9. solution holding box; 10. second liquid delivery pipe; 11. spray plate; 12. second spray head; 13. activated carbon layer; 13-1. holding plate; 13-2. activated carbon particles; 14. filter screen; 15. support leg; 16. observation window; 17. first side door; 18. second side door; 19. booster pump. DETAILED DESCRIPTION

[0020] like Figure 1-5 As shown, a washing tower for waste gas treatment includes a tower body 1, the interior of the tower body 1 is sequentially arranged as a liquid recovery chamber 1-1, a first treatment chamber 1-2 and a second treatment chamber 1-3 from bottom to top, an air inlet pipe 2 is connected to the outside of the first treatment chamber 1-2, the cross section of the air inlet pipe 2 is arranged in a rectangular shape, the air inlet pipe 2 is arranged in an arc shape along the length direction, the air inlet pipe 2 is close to the outer wall of the first treatment chamber 1-2 and its size gradually decreases, a first spray assembly is arranged in the air inlet pipe 2, an air outlet end 201 of the air inlet pipe 2 is arranged at the rear side of the first treatment chamber 1-2, a baffle 7 is connected to the inside of the first treatment chamber 1-2 and above the air outlet end 201, the cross section of the baffle 7 is arranged in an L shape, and the baffle 7 A packing layer 8 is installed on the left and right sides, and the packing layer 8 is located below the air outlet 201. A second spray assembly is arranged on the left side of the baffle 7. An activated carbon layer 13 is arranged inside the second treatment chamber 1-3, and an exhaust pipe 3 is arranged on the top surface of the second treatment chamber 1-3. A filter screen 14 is installed inside the liquid recovery chamber 1-1, and a support leg 15 is connected to the bottom of the liquid recovery chamber 1-1; specifically, the filler of the packing layer 8 is a multi-faceted hollow ball, a wreath or a biological filler to increase filtering adsorption and improve the washing effect; the exhaust gas enters the first treatment chamber 1-2 through the air outlet 201, and cannot move upward due to the blocking effect of the baffle 7, but can only move downward into the packing layer 8, and the exhaust gas is treated by the packing layer 8.

[0021] The first spray assembly includes a first liquid delivery pipe 4, which is installed above the air intake pipe 2. A plurality of spray pipes 5 are connected to the bottom of the first liquid delivery pipe 4, and the spray pipes 5 extend to the interior of the air intake pipe 2 and are connected to a first spray head 6. The first liquid delivery pipe 4 is connected to an external water pipe, and water is pumped into the first liquid delivery pipe 4 by a water pump, and water is sprayed into the air intake pipe 2 through the first spray head 6 to perform preliminary dust reduction treatment on the exhaust gas.

[0022] The second spray assembly includes a spray plate 11, which is arranged on the left side of the baffle 7. A plurality of second spray heads 12 are installed on the bottom surface of the spray plate 11. The outer side of the liquid recovery chamber 1-1 is connected to a solution holding box 9. A booster pump 19 is installed behind the solution holding box 9. One end of the booster pump 19 is connected to the solution holding box 9, and the other end of the booster pump 19 is connected to the spray plate 11 through a second liquid delivery pipe 10. The treated liquid in the solution holding box 9 is pumped into the spray plate 11 through the booster pump 19 and is evenly sprayed out by the second spray head 12.

[0023] The activated carbon layer 13 includes a holding plate 13-1, which is arranged inside the second treatment chamber 1-3. The holding plate 13-1 is provided with a plurality of air holes, and the top surface of the holding plate 13-1 is covered with activated carbon particles 13-2. In addition, the activated carbon layer 13 can also directly adopt an activated carbon plate; the adsorption effect of activated carbon is used to adsorb harmful substances in the exhaust gas in one step.

[0024] An observation window 16 is installed in front of the liquid recovery chamber 1-1 to facilitate observation of the liquid level in the liquid recovery chamber 1-1. When the liquid level rises to a predetermined height, the valve at the bottom of the liquid recovery chamber 1-1 is opened to discharge the liquid downward; a first side door 17 is installed in front of the first treatment chamber 1-2 to facilitate replacement of the filler of the packing layer 8. The packing layer 8 includes a filler support plate at the bottom. The filler support plate has through holes, and the filler is evenly laid on the filler support plate; after a period of use, the first side door 17 is opened to replace the filler; a second side door 18 is installed in front of the second treatment chamber 1-3 to facilitate replacement of activated carbon; after a period of use, the second side door 18 is opened to replace the activated carbon.

[0025] The working process of the utility model is as follows:

[0026] The waste gas is passed into the air inlet pipe 2, and water is sprayed into the air inlet pipe 2 through the first spray head 6 to perform preliminary dust reduction treatment on the waste gas; the waste gas enters the first treatment chamber 1-2 through the air outlet end 201, moves downward to the packing layer 8, and is treated by the packing layer 8 on the right side, and then enters the liquid recovery chamber 1-1 and then moves upward again through the packing layer 8 on the left side; the treated gas moves upward, and the treated liquid in the solution holding box 9 is pumped into the spray plate 11 by the booster pump 19, and is evenly sprayed by the second spray head 12 to treat the gas again; the gas continues to rise and passes through the activated carbon layer 13 to further adsorb harmful substances in the waste gas, and the treated gas is discharged to the outside through the exhaust pipe 3.

[0027] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A scrubber for waste gas treatment, characterized in that: The tower body (1) comprises a liquid recovery chamber (1-1), a first treatment chamber (1-2) and a second treatment chamber (1-3) arranged in sequence from bottom to top; an air inlet pipe (2) is arranged outside the first treatment chamber (1-2); a first spray assembly is arranged inside the air inlet pipe (2); an air outlet end (201) of the air inlet pipe (2) is arranged at the rear side of the first treatment chamber (1-2); a baffle is arranged inside the first treatment chamber (1-2) and above the air outlet end (201); A baffle (7) is provided with a packing layer (8) on the left and right sides of the baffle (7), and the packing layer (8) is located below the gas outlet end (201); a second spray assembly is provided on the left side of the baffle (7); an activated carbon layer (13) is provided inside the second treatment chamber (1-3); an exhaust pipe (3) is provided on the top surface of the second treatment chamber (1-3); a filter screen (14) is provided inside the liquid recovery chamber (1-1); and a support leg (15) is provided below the liquid recovery chamber (1-1).

2. The exhaust gas treatment scrubber according to claim 1, characterized in that: The first spray assembly comprises a first liquid delivery pipe (4), the first liquid delivery pipe (4) being arranged above the air inlet pipe (2), a plurality of spray pipes (5) being connected below the first liquid delivery pipe (4), the spray pipes (5) extending into the interior of the air inlet pipe (2) and being connected to a first spray head (6).

3. The exhaust gas treatment scrubber according to claim 1, characterized in that: The cross section of the baffle (7) is arranged to be L-shaped.

4. The exhaust gas treatment scrubber according to claim 1, characterized in that: The second spray assembly comprises a spray plate (11), the spray plate (11) is arranged on the left side of the baffle (7), a plurality of second spray heads (12) are installed on the bottom surface of the spray plate (11), a solution storage box (9) is arranged on the outside of the liquid recovery chamber (1-1), a booster pump (19) is installed behind the solution storage box (9), one end of the booster pump (19) is connected to the solution storage box (9), and the other end of the booster pump (19) is connected to the spray plate (11) through a second liquid delivery pipe (10).

5. The exhaust gas treatment scrubber according to claim 1, characterized in that: The activated carbon layer (13) comprises a containing plate (13-1), the containing plate (13-1) is arranged inside the second treatment chamber (1-3), a plurality of air holes are opened on the containing plate (13-1), and the top surface of the containing plate (13-1) is paved with activated carbon particles (13-2).

6. The exhaust gas treatment scrubber according to claim 1, characterized in that: An observation window (16) is provided in front of the liquid recovery chamber (1-1), a first side door (17) is provided in front of the first treatment chamber (1-2), and a second side door (18) is provided in front of the second treatment chamber (1-3).

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