Spray tower and waste gas treatment system

Abstract

The utility model discloses a spray tower and a waste gas treatment system, the spray tower comprises a tower body, the bottom of the tower body is provided with a first reflux inlet and a gas inlet, the tower body is arranged on a first liquid medicine storage box, and the first reflux inlet of the tower body is communicated with the inside of the first liquid medicine storage box; a first spraying assembly, a partition plate, a second spraying assembly and a demister which are distributed from bottom to top are arranged in the tower body, the first spraying assembly is connected with a first liquid medicine storage box through a first liquid supply pipeline, a through hole is formed in the partition plate, and a spraying liquid backflow groove corresponding to the through hole is formed in a gap below the partition plate; a distance is kept between the spraying liquid backflow groove and the inner wall of the tower body, the second spraying assembly is connected with a second liquid medicine storage box through a second liquid supply pipeline, and the spraying liquid backflow groove is connected with the second liquid medicine storage box through a backflow pipeline. According to the utility model, acid and alkali treatment can be carried out in one tower body, and meanwhile, separation and cyclic utilization of two kinds of liquid medicine can be effectively realized.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection equipment, in particular to a spray tower and a waste gas treatment system. Background Art

[0002] The spray tower is a commonly used equipment for waste gas treatment, which treats the waste gas by spraying acid or alkali solution into the gas in the tower.

[0003] In order to enrich the functions of the spray tower, some spray towers need to spray both acid and alkali. For example, the utility model patent with authorization announcement number CN213078029U discloses a corresponding structure.

[0004] However, this structure realizes the corresponding function by setting up two independent spray towers, one spray tower spraying acid solution and the other spray tower spraying alkali solution. This structure requires two spray towers, has a more complex structure and occupies a large space. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and to provide a spray tower and an exhaust gas treatment system.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A spray tower comprises a tower body, wherein the bottom of the tower body has a first reflux port and an air inlet, the top of the tower body has an air outlet, the tower body is arranged on a first liquid medicine storage tank and its first reflux port is connected to the interior of the first liquid medicine storage tank, the tower body is provided with a first spray assembly located above the air inlet, a partition located above the first spray assembly, a second spray assembly located above the partition and a demister located above the second spray assembly, the first spray assembly is connected to the first liquid medicine storage tank through a first liquid supply pipeline, a through hole is provided on the partition, a spray liquid reflux groove corresponding to the through hole is provided in the gap below the partition, a distance is maintained between the spray liquid reflux groove and the inner wall of the tower body, the second spray assembly is connected to the second liquid medicine storage tank through a second liquid supply pipeline, and the spray liquid reflux groove is connected to the second liquid medicine storage tank through a reflux pipe.

[0008] Preferably, the tower body is arranged on the first liquid medicine storage tank and the second storage tank.

[0009] Preferably, acid liquid is stored in the first liquid medicine storage box.

[0010] Preferably, alkaline solution is stored in the second liquid medicine storage tank.

[0011] Preferably, a first pH meter is disposed in the first drug liquid storage box, and the first drug liquid storage box is connected to a first drug source via a first drug supply pipeline.

[0012] Preferably, a second pH meter is provided in the second drug liquid storage box, and the second drug liquid storage box is connected to a second drug source via a second drug supply pipeline.

[0013] Preferably, a first packing layer located below the first spray assembly is provided in the tower body.

[0014] Preferably, a second filler layer is provided below the partition plate and is located in the spray liquid reflux groove and keeps a distance from the inner wall of the spray liquid reflux groove.

[0015] Preferably, a connecting plate is provided at the outer side wall of the spray liquid reflux groove, a fixing plate is provided at the inner wall of the tower body, and the spray liquid reflux groove is fixed to the fixing plate through the connecting plate.

[0016] An exhaust gas treatment system comprises a spray tower as described above.

[0017] The advantages of the technical solution of the utility model are mainly reflected in:

[0018] The utility model arranges a first spray assembly and a second spray assembly in a tower body, and separates the first spray assembly from the second spray assembly by a partition, a spray liquid reflux groove, etc., so that acid and alkali can be treated separately in one tower body. At the same time, the liquid medicine sprayed by the first spray assembly can flow back to the first liquid medicine storage tank, and the liquid medicine sprayed by the second spray assembly can be collected in the spray liquid reflux groove and flow back to the second liquid medicine storage tank, so that the separation and recycling of the two liquid medicines can be effectively realized.

[0019] The utility model makes the first medicine liquid storage box and the second medicine liquid storage box close to each other and arranges the tower body on the top of them, so as to provide integration to the greatest extent.

[0020] The utility model arranges pH meters in the first liquid medicine storage box and the second liquid medicine storage box respectively, and can determine whether to replenish liquid medicine according to the measured pH value, thus avoiding manual operation and being conducive to improving the degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the spray tower of the utility model;

[0022] Figure 2 It is a schematic diagram of the spray tower of the utility model having the first and second pH meters;

[0023] Figure 3 It is a schematic diagram of a spray tower of the utility model having a first packing layer and a second packing layer. DETAILED DESCRIPTION

[0024] The purpose, advantages and features of the present invention will be illustrated and explained through the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0025] In the description of the scheme, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] Example 1

[0027] The spray tower disclosed by the utility model is described below in conjunction with the accompanying drawings. Figure 1 As shown, it includes a tower body 100, the bottom of the tower body 100 has a first reflux port 110 and an air inlet 120, the top of the tower body 100 has an air outlet 130, the tower body 100 is arranged on a first liquid medicine storage tank 200 and its first reflux port 110 is connected to the interior of the first liquid medicine storage tank 200, and the tower body 100 is provided with a first spray assembly 300 located above the air inlet 120, a partition 400 located above the first spray assembly 300, a second spray assembly 500 located above the partition 400, and a second spray assembly 500 located above the second spray assembly 500. The demister 600 is located above, the first spray assembly 300 is connected to the first liquid medicine storage tank 200 through the first liquid supply pipeline 700, the partition 400 is provided with a through hole (not shown in the figure), and the gap below the partition 400 is provided with a spray liquid reflux groove 800 corresponding to the through hole, and the spray liquid reflux groove 800 maintains a distance from the inner wall of the tower body 100, the second spray assembly 500 is connected to the second liquid medicine storage tank A00 through the second liquid supply pipeline 900, and the spray liquid reflux groove 800 is connected to the second liquid medicine storage tank A00 through the reflux pipe B00.

[0028] During operation, the air inlet 120 is connected to the waste gas delivery pipe, and the waste gas entering the tower body 100 flows upward and reacts with the liquid sprayed by the first spray assembly 300, passes through the gap between the spray liquid reflux groove 800 and the through hole on the partition 400, and then enters the top of the partition 400 to react with the liquid sprayed by the second spray assembly 500, and finally passes through the demister 600 and is discharged from the top air outlet 130. The liquid sprayed by the first spray assembly 300 flows back to the first liquid storage tank 200 through the first reflux port 110, and the liquid sprayed by the second spray assembly 500 flows into the spray liquid reflux groove 800 through the through hole on the partition 400, and then flows back to the second liquid storage tank A00.

[0029] As attached Figure 1 As shown, the tower body 100 can be a known cylindrical or rectangular parallelepiped or other feasible shapes, which will not be described here. The bottom of the tower body 100 is open as a whole so as to serve as the first reflux port 110. At the same time, the first liquid medicine storage tank 200 can be a storage container of a feasible shape. Preferably, the top of the first liquid medicine storage tank 200 has an opening 210 corresponding to the opening, so that the liquid can flow back from the opening into the first liquid medicine storage tank 200. The second liquid medicine storage tank A00 can be a closed container. At the same time, it is closely arranged on a base C00 with the first liquid medicine storage tank 200. The tower body 100 is also arranged on the top of the second liquid medicine storage tank A00, so that the overall structure can be more compact.

[0030] The liquid medicines stored in the first liquid medicine storage box 200 and the second liquid medicine storage box A00 can be designed as needed. Preferably, the first liquid medicine storage box 200 stores acidic liquid, and the second liquid medicine storage box A00 stores alkaline liquid, so that acid-base treatment can be achieved.

[0031] As attached Figure 2 As shown, in order to ensure the treatment effect of the liquid medicine in the first liquid medicine storage tank 200 and the second liquid medicine storage tank A00, a first pH meter D00 is arranged in the first liquid medicine storage tank 200, and the first liquid medicine storage tank 200 is connected to a first medicine source (not shown in the figure) through a first medicine supply pipeline (not shown in the figure), and a second pH meter E00 is arranged in the second liquid medicine storage tank A00, and the second liquid medicine storage tank A00 is connected to a second medicine source (not shown in the figure) through a second medicine supply pipeline (not shown in the figure). The first medicine source is, for example, a tank storing acid, and the second medicine source is, for example, a tank storing alkali. The first medicine supply pipeline and the second medicine supply pipeline have the same structure, which generally includes pipes, pumps, valves and other structures, which are not described here.

[0032] As attached Figure 3As shown, in order to make the gas contact with the liquid medicine more fully, the tower body 100 is provided with a first packing layer F00 located below the first spray assembly 300, and the partition plate 400 is provided with a second packing layer G00 located in the spray liquid reflux groove 800 and keeping a distance from the inner wall of the spray liquid reflux groove 800, so that the gas can contact with the liquid medicine more fully through the gap between the first packing layer F00 and the second packing layer G00. The specific structure and material of the first packing layer and the second packing layer are known technologies and will not be described in detail here.

[0033] In order to facilitate the installation of the spray liquid reflux trough 800, a connecting plate is provided at the outer wall of the spray liquid reflux trough 800, and a fixing plate is provided on the inner wall of the tower body 100. The fixing plate and the connecting plate are preferably L-shaped plates. The spray liquid reflux trough 800 is fixed to the fixing plate through the connecting plate. They can be screwed or connected by welding or other methods. A second reflux port 810 is provided on the bottom plate or side plate of the spray liquid reflux trough 800, and the second reflux port 810 is connected to the second liquid reflux box through the reflux pipe. The first liquid supply pipeline 700 includes a pipeline connecting the first liquid storage box 200 and the first spray assembly 300 and a first reflux pump provided on the pipeline. The structure of the second liquid supply pipeline 900 is the same or equivalent to that of the first liquid supply pipeline 700, and will not be described in detail here.

[0034] Example 2

[0035] This embodiment discloses a waste gas treatment system, comprising any of the spray towers described above.

[0036] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A spray tower, comprising a tower body, wherein the bottom of the tower body has a first reflux port and an air inlet, and the top of the tower body has an air outlet, characterized in that: The tower body is arranged on the first liquid medicine storage tank and its first reflux port is connected to the interior of the first liquid medicine storage tank. A first spray assembly located above the air inlet, a partition located above the first spray assembly, a second spray assembly located above the partition and a demister located above the second spray assembly are arranged in the tower body. The first spray assembly is connected to the first liquid medicine storage tank through a first liquid supply pipeline, a through hole is arranged on the partition, and a spray liquid reflux groove corresponding to the through hole is arranged in the gap below the partition, and a distance is maintained between the spray liquid reflux groove and the inner wall of the tower body, the second spray assembly is connected to the second liquid medicine storage tank through a second liquid supply pipeline, and the spray liquid reflux groove is connected to the second liquid medicine storage tank through a reflux pipe.

2. The spray tower according to claim 1, characterized in that: The tower body is arranged on the first chemical liquid storage tank and the second chemical liquid storage tank.

3. The spray tower according to claim 1, characterized in that: Acid liquid is stored in the first liquid storage box.

4. The spray tower according to claim 1, characterized in that: The second liquid medicine storage tank stores alkaline solution.

5. The spray tower according to claim 1, characterized in that: A first pH meter is arranged in the first drug liquid storage box, and the first drug liquid storage box is connected to a first drug source through a first drug supply pipeline.

6. The spray tower according to claim 1, characterized in that: A second pH meter is arranged in the second drug liquid storage box, and the second drug liquid storage box is connected to a second drug source through a second drug supply pipeline.

7. The spray tower according to claim 1, characterized in that: The tower body is provided with a first packing layer located below the first spray assembly.

8. The spray tower according to claim 1, characterized in that: A second packing layer is arranged below the partition plate and is located in the spray liquid reflux groove and keeps a distance from the inner wall of the spray liquid reflux groove.

9. The spray tower according to claim 1, characterized in that: A connecting plate is provided at the outer side wall of the spray liquid reflux groove, a fixing plate is provided at the inner wall of the tower body, and the spray liquid reflux groove is fixed on the fixing plate through the connecting plate.

10. Waste gas treatment system, characterized by: It comprises a spray tower as described in any one of claims 1 to 9.

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