Acid mist collecting and treating system

Abstract

The utility model relates to the field of pickling acid mist treatment, and particularly discloses an acid mist collecting and treating system which comprises a condensing tower, a ventilation opening formed in the top of the condensing tower, a feeding opening formed in the side face of the condensing tower, a first partition plate arranged in the condensing tower and located above the feeding opening, a heat exchanger arranged above the first partition plate and a condensing column arranged below the first partition plate. The condensation column is of a hollow structure, a condensation pipe is fixedly arranged on the inner wall of the condensation column, a through hole is formed in the first partition plate, the two ends of the condensation pipe penetrate through the through hole to be connected with the heat exchanger, a discharging port is formed in the bottom of the condensation tower, and the bottom of the discharging port is connected with a liquid collecting tank. The heat exchanger and the condensation pipe are arranged in the condensation column to reduce the temperature of the condensation column, the acid mist can be condensed through the condensation column, and finally the condensed acid liquid is collected through the liquid collection tank.

Description

Technical Field

[0001] The utility model relates to the field of pickling acid mist treatment, in particular to an acid mist collection and treatment system. Background Art

[0002] The method of using acid solution to remove oxide scale and rust on the surface of steel is called pickling, which is a method of cleaning the metal surface. Acid mist waste gas will be produced during the pickling process. Acid mist waste gas is a common atmospheric pollutant. Acid mist waste gas will not only pollute the environment, but also harm human health. Therefore, it is very important to treat acid mist waste gas.

[0003] Most of the existing enterprises use liquid absorption method to treat acid mist for dust precipitation, and neutralize the acid mist by spraying water or alkaline solution to achieve the purpose of acid mist neutralization treatment. For example, an acid mist treatment tower with patent number CN219376672U introduces a device for treating acid mist by neutralizing dust precipitation. However, in the process of using this device, it is found that if the collected acid liquid needs to be put into use here, the neutralized acid liquid needs to be purified, which is relatively cumbersome. Therefore, a treatment system that can collect acid mist and put the collected acid mist back into use is needed. Utility Model Content

[0004] The utility model is to solve the technical problems mentioned in the above background technology, and proposes the following technical solutions:

[0005] A system for collecting and treating acid mist comprises a condensation tower, wherein a vent is arranged on the top of the condensation tower, a feed port is arranged on the side of the condensation tower, a first partition is arranged in the condensation tower, the first partition is located above the feed port, a heat exchanger is arranged above the first partition, a condensation column is arranged below the first partition, the condensation column is a hollow structure, a condensation tube is fixedly arranged on the inner wall of the condensation column, a through hole is arranged on the first partition, and both ends of the condensation tube pass through the through holes respectively to be connected with the heat exchanger.

[0006] A feed discharge port is provided at the bottom of the condensation tower, and a liquid collecting tank is connected to the bottom of the feed discharge port.

[0007] Preferably, a support column is provided at the bottom of the condensation tower.

[0008] Preferably, the bottom of the condensation column is a conical structure.

[0009] Preferably, a filter box is provided on one side of the condensation tower, and an air inlet and an air outlet are respectively provided on the left and right sides of the top of the filter box, a second partition is provided in the filter box, the second partition is located between the air inlet and the air outlet, and there is a gap between the bottom of the second partition and the bottom of the filter box, an alkaline solution is provided in the filter box, and a ventilation pipe is provided at the bottom of one side of the condensation tower, and one end of the ventilation pipe is connected to the air inlet.

[0010] Preferably, a liquid level observation window is provided on the side of the filter box.

[0011] The beneficial effects of the utility model are:

[0012] 1. A condensation tower is provided, a condensation column is provided in the condensation tower, a heat exchanger and a condensation tube are provided in the condensation column to reduce the temperature of the condensation column, the acid mist can be condensed through the condensation column, and finally the condensed acid liquid is collected through a liquid collecting tank.

[0013] 2. By setting up a filter box, the condensation tower is connected to the filter box through a ventilation pipe, and by setting up an alkaline solution and a second partition in the filter box, the acid mist can be further collected and processed to avoid pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a structural schematic diagram of the second embodiment of the utility model.

[0016] In the figure: 1. condensation tower; 1-1. ventilation port; 1-2. feed port; 1-3. discharge port; 2. first partition; 2-1. through hole; 3. condensation column; 4. condenser tube; 5. heat exchanger; 6. liquid collecting tank; 7. support column; 8. filter box; 8-1. air inlet; 8-2. air outlet; 8-3. liquid level observation window; 9. second partition; 10. alkaline solution; 11. ventilation pipe. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] In the description of the present utility model, it is necessary to understand that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described in the terms "fixed connection" and "fixed setting" include but are not limited to "welding", "riveting", "adhesion", and "threaded connection". The terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device.

[0019] The directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0020] Embodiment 1

[0021] Reference Figure 1 A system for collecting and treating acid mist comprises a condensation tower 1, a vent 1-1 is arranged on the top of the condensation tower 1, a feed port 1-2 is arranged on the side of the condensation tower 1, a first partition plate 2 is arranged in the condensation tower 1, the first partition plate 2 is located above the feed port 1-2, a heat exchanger 5 is arranged above the first partition plate 2, a condensation column 3 is arranged below the first partition plate 2, the condensation column 3 is a hollow structure, a condensation pipe 4 is fixedly arranged on the inner wall of the condensation column 3, a through hole 2-1 is arranged on the first partition plate 2, and both ends of the condensation pipe 4 pass through the through hole 2-1 respectively to be connected with the heat exchanger 5.

[0022] A feed opening 1-3 is arranged at the bottom of the condensation tower 1, and the bottom of the feed opening 1-3 is connected to a liquid collecting tank 6.

[0023] Preferably, a support column 7 is provided at the bottom of the condensation tower 1 .

[0024] Preferably, the bottom of the condensation column 3 is a conical structure.

[0025] In actual operation, the acid mist will enter the condensation tower 1 through the feed port 1-2, and the temperature of the condensation column 3 will be reduced under the action of the heat exchanger 5 and the condensation tube 4. The acid mist will condense on the condensation column 3 and then fall down into the liquid collecting pipe 6 along the condensation column 3.

[0026] Embodiment 2

[0027] Reference Figure 2The difference between this embodiment and the first embodiment is that a filter box 8 is arranged on one side of the condensation tower 1, and an air inlet 8-1 and an air outlet 8-2 are arranged on the left and right sides of the top of the filter box 8 respectively. A second partition plate 9 is arranged in the filter box 8, and the second partition plate 9 is located between the air inlet 8-1 and the air outlet 8-2. There is a gap between the bottom of the second partition plate 9 and the bottom of the filter box 8. An alkaline solution 10 is arranged in the filter box 8, and the liquid level of the alkaline solution 10 is higher than the lowest point of the second partition plate 9. A ventilation pipe 11 is arranged at the bottom of one side of the condensation tower 1, and one end of the ventilation pipe 11 is connected to the air inlet 8-1. A liquid level observation window 8-3 is arranged on the side of the filter box 8, and the liquid level of the alkaline solution 10 can be observed in real time through the page height observation window 8-3.

Claims

1. An acid mist collection and treatment system, comprising a condensation tower (1), characterized in that: The top of the condensation tower (1) is provided with a vent (1-1), the side of the condensation tower (1) is provided with a feed port (1-2), a first baffle (2) is provided inside the condensation tower (1), the first baffle (2) is located above the feed port (1-2), a heat exchanger (5) is provided above the first baffle (2), a condensation column (3) is provided below the first baffle (2), the condensation column (3) is a hollow structure, a condensation tube (4) is fixedly provided on the inner wall of the condensation column (3), a through hole (2-1) is provided on the first baffle (2), and both ends of the condensation tube (4) pass through the through hole (2-1) to be connected to the heat exchanger (5); The bottom of the condensation tower (1) is provided with a feed opening (1-3), and the bottom of the feed opening (1-3) is connected to a liquid collecting tank (6).

2. The acid mist collection and treatment system according to claim 1, characterized in that: A support column (7) is provided at the bottom of the condensation tower (1).

3. An acid mist collection and treatment system according to claim 2, characterized in that: The bottom of the condensation column (3) is a conical structure.

4. The acid mist collection and treatment system according to claim 1, characterized in that: A filter box (8) is provided on one side of the condensation tower (1), and an air inlet (8-1) and an air outlet (8-2) are provided on the left and right sides of the top of the filter box (8), respectively; a second partition plate (9) is provided in the filter box (8), and the second partition plate (9) is located between the air inlet (8-1) and the air outlet (8-2), and there is a gap between the bottom of the second partition plate (9) and the bottom of the filter box (8); an alkaline solution (10) is provided in the filter box (8); a ventilation pipe (11) is provided at the bottom of one side of the condensation tower (1), and one end of the ventilation pipe (11) is connected to the air inlet (8-1).

5. The acid mist collection and treatment system according to claim 4, characterized in that: A liquid level observation window (8-3) is provided on the side of the filter box (8).

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