Acid gas treatment device

Abstract

The utility model discloses an acid gas treatment device, which relates to the technical field of hydrochloric acid dilution and comprises a box body and a first driving motor, a centrifugal pump is arranged at the output end of the first driving motor, a water outlet pipe is arranged at the bottom of the box body and connected with the water inlet end of the centrifugal pump, and a water return pipe is arranged at the top of the box body. The water return pipe is connected with the water outlet end of the centrifugal pump; an air storage tank is arranged on the box body, an air inlet pipe is arranged at the air inlet end of the air storage tank, a booster pump is arranged on the air inlet pipe, an air outlet pipe is arranged at the air outlet end of the air storage tank, and the air outlet pipe is communicated with a water return pipe; a feeding opening for feeding NaOH powder is formed in the top of the box body, and a box cover is arranged on the feeding opening; according to the utility model, the NaOH powder is added into the water in the box body, so that the NaOH powder reacts with the acid gas to obtain a harmless sodium chloride solution, and the harm to a human body due to the fact that the acid gas is directly discharged into the air is further avoided.

Description

Technical Field

[0001] This utility model relates to the field of hydrochloric acid dilution technology, and in particular to an acid gas treatment device. Background Technology

[0002] The process of diluting industrial hydrochloric acid is roughly as follows: First, concentrated hydrochloric acid is pumped from the main tank to the dilution tank. Then, a large amount of water is added to the dilution tank to dilute the concentration of the concentrated hydrochloric acid. In order to achieve pressure balance in the dilution tank and to continuously add concentrated hydrochloric acid and water to the dilution tank, a pressure balance valve connected to the outside is installed at the top of the dilution tank. When the pressure in the dilution tank is too high, it will be discharged through the pressure balance valve.

[0003] However, hydrochloric acid is volatile, and its dilution process produces a large amount of acidic gas. If this gas is released directly without treatment, it will harm the environment and human health. Inhalation can cause irritation to the respiratory tract and eyes, leading to burning sensations in the throat, nose, and eyes, coughing, and wheezing. Contact with skin or eyes can cause chemical burns or corrosion, resulting in severe pain, wheezing, and mucosal damage. Furthermore, inhaling high concentrations of hydrochloric acid gas can cause respiratory problems such as chest tightness, difficulty breathing, and pulmonary edema, and in severe cases, suffocation. Long-term exposure to hydrochloric acid gas can lead to chronic respiratory problems such as bronchitis, asthma, and difficulty breathing. Hydrochloric acid gas can also cause nausea, dizziness, chest pain, stomach pain, and diarrhea.

[0004] Therefore, there is an urgent need for an acid gas treatment device to recover and treat the acid gas generated during the dilution of hydrochloric acid, thereby reducing the harm of acid gas to the human body. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an acid gas treatment device to solve the problem that existing hydrochloric acid dilution processes lack a device for further treating the generated acid gas, resulting in the direct emission of acid gas into the air and causing significant harm to the human body.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] An acid gas treatment device includes a main body, comprising a housing and a first drive motor. The output end of the first drive motor is equipped with a centrifugal pump. The bottom of the housing is equipped with a water outlet pipe, which is connected to the water inlet of the centrifugal pump. The top of the housing is equipped with a water return pipe, which is connected to the water outlet of the centrifugal pump.

[0008] The housing is equipped with an air storage tank, the air inlet end of the air storage tank is equipped with an air inlet pipe, the air inlet pipe is equipped with a booster pump, and the air outlet end of the air storage tank is equipped with an air outlet pipe, which is connected to the return water pipe.

[0009] The top of the box is provided with a feeding port for dispensing NaOH powder, and the feeding port is provided with a box cover;

[0010] The bottom of the box is equipped with a drain pipe.

[0011] Furthermore, the air outlet pipe is equipped with a flow regulating valve and a one-way valve to prevent water from the return water pipe from entering the air storage tank.

[0012] Furthermore, an overflow pipe is provided between the box and the drain pipe.

[0013] Furthermore, a second drive motor is provided on the top of the box, and the output end of the second drive motor is located inside the box and is equipped with a stirring paddle.

[0014] Furthermore, the box is equipped with a guide plate for guiding NaOH powder to the stirring paddle.

[0015] Furthermore, a magnetic ring is provided around the feeding port, and the magnetic ring can attract the box cover.

[0016] Furthermore, the box body is surrounded by a barrier around the feeding port.

[0017] Furthermore, the height of the air outlet pipe is not lower than that of the water return pipe.

[0018] In summary, the beneficial technical effects of this utility model are as follows:

[0019] The diluted acid gas is pressurized by a booster pump and stored in a gas storage tank. The acid gas is metered into the chamber and dissolved in water using a flow regulating valve. A centrifugal pump driven by a first drive motor circulates the water in the chamber. NaOH powder is added to the chamber through the feeding port to react with the acid gas, ultimately yielding a harmless NaC solution which is then discharged. This further reaction treatment of the acid gas avoids direct release into the air, thus preventing harm to the environment and human health. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 yes Figure 1 A structural diagram from another angle;

[0022] Figure 3 yes Figure 1 A diagram showing the hidden lid;

[0023] Figure 4 yes Figure 3 A diagram from another angle.

[0024] Reference numerals in the attached drawings: 1. Box body; 2. First drive motor; 3. Centrifugal pump; 4. Air storage tank; 41. Air outlet pipe; 5. Air inlet pipe; 6. Booster pump; 7. Water outlet pipe; 8. Water return pipe; 9. Flow regulating valve; 10. Feeding port; 11. Box cover; 12. Drain pipe; 13. Overflow pipe; 14. Magnetic ring; 15. Enclosure; 16. Second drive motor; 17. Agitator; 18. Guide plate. Detailed Implementation

[0025] The present invention will now be described clearly and completely with reference to the embodiments.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] See appendix Figure 1-4 The diagram shows an acid gas treatment device, including a housing 1. A first drive motor 2 is mounted on one side of the housing 1 via a mounting base. The output end of the first drive motor 2 is connected to a centrifugal pump 3. A water outlet pipe 7 is provided at the bottom of the housing 1 and is connected to the water inlet of the centrifugal pump 3. A water return pipe 8 is provided at the top of the housing 1 and is connected to the water outlet of the centrifugal pump 3. In use, the centrifugal pump 3 uses the water outlet pipe 7 and the water return pipe 8 to circulate the water inside the housing 1.

[0029] A gas storage tank 4 is installed on the outer wall of the housing 1 via a support frame. One end of the gas storage tank 4 is equipped with an air inlet pipe 5, and a booster pump 6 is installed on the air inlet pipe 5. The top of the gas storage tank 4 is equipped with an air outlet pipe 41, and the air outlet pipe 41 is equipped with a flow regulating valve 9 and a one-way valve to prevent water in the return water pipe 8 from entering the gas storage tank 4. The air outlet pipe is connected to the return water pipe 8. The acid gas generated during the dilution of hydrochloric acid will be further collected and then stored in the gas storage tank 4 by the booster pump 6. Then, the acid gas is metered through the return water pipe 8 to the housing 1 via the flow regulating valve 9 and dissolved in the circulating water in the housing 1.

[0030] The top of the chamber 1 is provided with a feeding port 10 for adding NaOH powder. When treating acid gas, NaOH powder is added to the water in the chamber 1 through the feeding port 10. At this time, the acid gas in the water will react with the NaOH powder chemically, i.e., NaOH + HCl = NaCl + H2O. Through this reaction, the acid gas will be reacted to obtain a harmless NaCl solution, thus avoiding the direct release of acid gas into the air and causing harm to the environment and human body.

[0031] Furthermore, a drain pipe 12 is provided at the bottom of the box 1. After the acid gas reaction is completed, it can be discharged through the drain pipe 12. At the same time, an overflow pipe 13 is provided between the box 1 and the drain pipe 12 to prevent the water level in the box 1 from being too high and overflowing from the feeding port 10.

[0032] Furthermore, in order to improve the dissolution rate of NaOH powder in water and prevent it from depositing at the bottom of the tank 1, a second drive motor 16 is provided at the top of the tank 1. The output end of the second drive motor 16 is located inside the tank 1 and a stirring paddle 17 is provided. At the same time, a guide plate 18 is inclinedly provided inside the tank 1. The guide plate 18 extends inclinedly toward the stirring paddle 17. When NaOH powder is added, the guide plate 18 can quickly guide the NaOH powder to the position of the stirring paddle 17. At this time, the stirring paddle 17 can accelerate the dissolution of NaOH powder in water.

[0033] Furthermore, in order to prevent the agitator 17 from splashing water out of the feed inlet 10 during agitation, a box cover 11 is provided on the feed inlet 10, and a magnetic ring 14 is provided around the feed inlet 10, which can attract the box cover 11.

[0034] Finally, in order to prevent NaOH powder from spreading arbitrarily to the top of the box 1, a barrier 15 is provided around the feeding port 10.

[0035] It should be noted that in order to prevent water in the return water pipe 8 from flowing back into the gas storage tank 4, the position of the gas outlet pipe 41 needs to be set at a height no lower than that of the return water pipe 8.

[0036] During the treatment of acid gas, the acid gas from the inlet pipe 5 is pressurized by the booster pump 6 and stored in the gas storage tank 4. Then, the flow regulating valve 9 is opened to allow the pressurized acid gas to enter the tank 1 along the return water pipe 8 and dissolve in the water. Then, the centrifugal pump 3 driven by the first drive motor 2 realizes the circulation of water in the tank 1. Then, NaOH powder is added into the tank 1 through the feeding port 10. With the cooperation of the second drive motor 16, it achieves a full reaction with the acid gas. The resulting NaCl solution is discharged through the drain pipe 12.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape and principle of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An acid gas treatment device, characterized in that: The device includes a housing (1) and a first drive motor (2). The output end of the first drive motor (2) is equipped with a centrifugal pump (3). The bottom of the housing (1) is equipped with a water outlet pipe (7), which is connected to the water inlet of the centrifugal pump (3). The top of the housing (1) is equipped with a water return pipe (8), which is connected to the water outlet of the centrifugal pump (3). The housing (1) is provided with an air storage tank (4), the air inlet end of the air storage tank (4) is provided with an air inlet pipe (5), the air inlet pipe (5) is equipped with a booster pump (6), the air outlet end of the air storage tank (4) is provided with an air outlet pipe (41), and the air outlet pipe (41) is connected to the return water pipe (8). The top of the box (1) is provided with a feeding port (10) for feeding NaOH powder, and the feeding port (10) is provided with a box cover (11); The bottom of the box (1) is provided with a drain pipe (12).

2. The acid gas treatment device according to claim 1, characterized in that: The air outlet pipe (41) is equipped with a flow regulating valve (9) and a one-way valve to prevent water in the return water pipe (8) from entering the air storage tank (4).

3. The acid gas treatment device according to claim 1, characterized in that: An overflow pipe (13) is provided between the box (1) and the drain pipe (12).

4. The acid gas treatment device according to claim 1, characterized in that: The top of the box (1) is provided with a second drive motor (16), and the output end of the second drive motor (16) is located inside the box (1) and is provided with a stirring paddle (17).

5. The acid gas treatment device according to claim 4, characterized in that: The housing (1) is equipped with a guide plate (18) for guiding NaOH powder to the stirring paddle (17).

6. The acid gas treatment device according to claim 1, characterized in that: A magnetic ring (14) is provided around the feeding port (10), and the magnetic ring (14) can adsorb with the box cover (11).

7. The acid gas treatment device according to claim 1, characterized in that: The box (1) is surrounded by a barrier (15) around the feeding port (10).

8. The acid gas treatment device according to claim 1, characterized in that: The height of the air outlet pipe (41) is not lower than that of the water return pipe (8).

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