A tail gas collecting and processing device for concentrated hydrochloric acid loading

Abstract

The utility model discloses a kind of tail gas collection treatment devices for concentrated hydrochloric acid loading, including absorption tower, the side of absorption tower is communicated with gas pipe, concentrated hydrochloric acid can be loaded into absorption tower when the tail gas of loading, further include absorption pool, collection cylinder, transition box, circulation seat, shower head and gas outlet pipe, the side of absorption pool is communicated with liquid inlet pipe, liquid inlet valve is set on liquid inlet pipe, to liquid inlet valve opening, absorption pool can be replenished absorbent by liquid inlet pipe, collection cylinder is set between absorption pool and absorption tower, and absorption tower and collection cylinder are connected through, transition box is installed in the side of collection cylinder, and collection cylinder and transition box are connected through, collection cylinder is trapezoidal, and the inside wall of collection cylinder is inclined to the side of transition box, to make the stable flow of hydrochloric acid treatment fluid and absorbent in collection cylinder into transition box and be collected. The tail gas collection treatment device for concentrated hydrochloric acid loading is convenient for timely treatment and use of absorbent.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas collection and treatment technology, specifically to an exhaust gas collection and treatment device for loading concentrated hydrochloric acid onto vehicles. Background Technology

[0002] Concentrated hydrochloric acid is a common inorganic acid with a strong, pungent odor. It is volatile, and the hydrogen chloride gas it releases combines with water vapor in the air to form white mist. It is widely used in chemical experiments, industrial production, and other fields.

[0003] In existing technologies, concentrated hydrochloric acid is a basic chemical raw material with a large demand, so it needs to be transported by tanker truck. However, when loading concentrated hydrochloric acid, the acid mist emitted can easily pollute the surrounding environment and harm the health of workers. Although concentrated hydrochloric acid tail gas can be absorbed by spraying in an absorption tower, the absorbent is directly recycled during the treatment of concentrated hydrochloric acid tail gas, which is not convenient for treatment. The concentration of hydrochloric acid in the absorbent is easy to exceed the standard, which will affect the spraying treatment effect of concentrated hydrochloric acid tail gas. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a device for collecting and treating exhaust gas from concentrated hydrochloric acid trucks, thereby solving the problem mentioned in the background technology of the inconvenience in timely processing and use of the absorbent.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a device for collecting and treating exhaust gas from concentrated hydrochloric acid loading vehicles, comprising an absorption tower, one side of which is connected to an air supply pipe, and further comprising an absorption tank, a collection cylinder, a transition box, a circulation seat, a spray head, and an exhaust pipe.

[0008] The absorption tank is located below the absorption tower;

[0009] The collection cylinder is disposed between the absorption tank and the absorption tower, and the absorption tower and the collection cylinder are connected through the absorption tank;

[0010] The transition box is installed on one side of the collection cylinder, and the collection cylinder and the transition box are connected through the cylinder.

[0011] The circulation seat is installed between the transition box and the absorption tower;

[0012] The spray head is configured as a plurality of spray heads, which are linearly distributed in the absorption tower, and a spray assembly is installed between the absorption tank and the plurality of spray heads;

[0013] The gas outlet pipe is connected to the top of the absorption tower, and a processing component is installed on the gas outlet pipe.

[0014] Furthermore, the processing component includes:

[0015] A processing box, located on one side of the absorption tank;

[0016] A processing pipe, which connects the outlet pipe and the processing box, and a processing valve is installed on the processing pipe;

[0017] An activated carbon mesh plate, which is detachably connected inside the processing box;

[0018] An adsorption mesh plate, wherein the adsorption mesh plate is detachably installed on one side of the activated carbon mesh plate;

[0019] A vacuum tube is connected to one side of the processing chamber, and a vacuum valve is installed on the vacuum tube.

[0020] Furthermore, the spray assembly includes:

[0021] A delivery pump is installed on one side of the absorption tank, and the inlet of the delivery pump is connected to the absorption tank.

[0022] An infusion pipe, which connects the delivery pump and the absorption tower;

[0023] A dilution tube, which connects the infusion tube and the collection cylinder, and is equipped with a dilution valve;

[0024] A spray pipe, which connects the infusion pipe to the plurality of spray heads.

[0025] Furthermore, the circulation seat includes:

[0026] A circulation pump, which is installed at the top of the transition box;

[0027] A connecting pipe, which connects the circulating pump and the transition box;

[0028] A circulation pipe is connected between the output end of the circulation pump and the absorption tower, and the circulation pipe is also connected to the spray pipe.

[0029] Furthermore, a protective cover is detachably connected to the top of the processing box, and a positioning frame is fixedly connected to the top of the protective cover. The positioning frame has a positioning plane that matches the outer side wall of the processing box, and a handle ring is fixedly connected to the top of the positioning frame.

[0030] Furthermore, the collecting cylinder is trapezoidal, and the inner wall of the collecting cylinder is inclined toward one side of the transition box.

[0031] Furthermore, one side of the absorption tank is connected to an inlet pipe, and an inlet valve is installed on the inlet pipe.

[0032] Furthermore, one side of the transition box is connected to a liquid outlet pipe, and a liquid outlet valve is installed on the liquid outlet pipe.

[0033] (III) Beneficial Effects

[0034] Compared with the prior art, this utility model provides a device for collecting and treating exhaust gas from concentrated hydrochloric acid trucks, which has the following advantages:

[0035] 1. In this utility model, the gas supply pipe facilitates the entry of concentrated hydrochloric acid tail gas into the absorption tower. The combination of the absorption tank and the spray assembly facilitates the spray treatment of the concentrated hydrochloric acid tail gas in the absorption tower, thereby improving the collection and treatment efficiency of concentrated hydrochloric acid loading tail gas.

[0036] 2. In this utility model, the combination of the collection cylinder and the transition box facilitates the collection of the treated absorbent, while the circulation seat facilitates the timely processing and reuse of the used absorbent, thereby improving the recycling efficiency of the absorbent.

[0037] 3. In this utility model, the exhaust pipe facilitates the discharge of the treated concentrated hydrochloric acid tail gas. At the same time, the treatment components can further treat the concentrated hydrochloric acid tail gas to reduce the impact of the concentrated hydrochloric acid tail gas discharge on the working environment and to reduce the impact of the concentrated hydrochloric acid tail gas on the health of workers. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of this application;

[0039] Figure 2 This is a schematic diagram of the structure of the spray head, spray pipe and circulation pipe in this application;

[0040] Figure 3 This is a schematic diagram of the structure of the transition box, circulating pump and connecting pipes in this application;

[0041] Figure 4 This is a schematic diagram of the structure of the processing box, protective cover and handle ring of this application.

[0042] In the diagram: 1. Absorption tower; 2. Gas supply pipe; 3. Absorption tank; 4. Collection cylinder; 5. Transition box; 6. Spray head; 7. Gas outlet pipe; 8. Treatment box; 9. Treatment pipe; 10. Activated carbon mesh plate; 11. Adsorption mesh plate; 12. Vacuum pipe; 13. Transfer pump; 14. Liquid delivery pipe; 15. Dilution pipe; 16. Spray pipe; 17. Circulation pump; 18. Connecting pipe; 19. Circulation pipe; 20. Protective cover; 21. Positioning frame; 22. Handle ring. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Please see Figures 1 to 4 A device for collecting and treating exhaust gas from concentrated hydrochloric acid loading, comprising an absorption tower 1, with a gas supply pipe 2 connected to one side of the absorption tower 1 to allow exhaust gas from concentrated hydrochloric acid loading to enter the absorption tower 1; and an absorption tank 3, a collection cylinder 4, a transition box 5, a circulation seat, a spray head 6, and an exhaust pipe 7. The absorption tank 3 is located below the absorption tower 1, and an inlet pipe is connected to one side of the absorption tank 3. An inlet valve is installed on the inlet pipe; opening the inlet valve allows the absorption agent to be added to the absorption tank 3 through the inlet pipe. The collection cylinder 4 is positioned between the absorption tank 3 and the absorption tower 1, with the absorption tower 1 and the collection cylinder 4 connected through each other. The transition box 5 is installed on one side of the collection cylinder 4, with the collection cylinder 4 and the transition box 5 connected through each other. The collection cylinder 4 is trapezoidal, and its inner wall is inclined towards the transition box 5 to facilitate the stable flow of hydrochloric acid treatment liquid and absorbent in the collection cylinder 4 into the transition box 5 for collection. One side of the transition box 5 is connected to an outlet pipe, and an outlet valve is installed on the outlet pipe. Opening the outlet valve allows the hydrochloric acid treatment liquid in the transition box 5 to be discharged through the outlet pipe for use. A circulation seat is installed between the transition box 5 and the absorption tower 1. Multiple spray heads 6 are set, and the multiple spray heads 6 are linearly distributed in the absorption tower 1 to uniformly spray the concentrated hydrochloric acid tail gas in the absorption tower 1. A spray assembly is installed between the absorption tank 3 and the multiple spray heads 6. The gas outlet pipe 7 is connected to the top of the absorption tower 1, and a treatment assembly is installed on the gas outlet pipe 7.

[0045] refer to Figure 1 as well as Figure 4The treatment assembly includes a treatment box 8, a treatment pipe 9, an activated carbon mesh plate 10, an adsorption mesh plate 11, and a vacuum tube 12. The treatment box 8 is located on one side of the absorption tank 3. The treatment pipe 9 connects the outlet pipe 7 and the treatment box 8, and a treatment valve is installed on the treatment pipe 9. When the treatment valve is opened, concentrated hydrochloric acid tail gas can enter the treatment box 8 through the treatment pipe 9. The activated carbon mesh plate 10 is detachably connected to the treatment box 8. The activated carbon mesh plate 10 can be used after being soaked in NaOH solution and dried. The adsorption mesh plate 11 is detachably installed on one side of the activated carbon mesh plate 10. Two concave grooves are provided on the inner side wall of the treatment box 8 for placing the activated carbon mesh plate 10 and the adsorption mesh plate 11. The activated carbon mesh plate 10 and the adsorption mesh plate 11 can be quickly installed and disassembled in the treatment box 8. The vacuum tube 12 is connected to one side of the treatment box 8, and a vacuum valve is installed on the vacuum tube 12. A vacuum pump is connected to one side of the vacuum tube 12. The vacuum pump can draw a vacuum into the absorption tower 1 through the vacuum tube 12, the treatment box 8, the treatment tube 9 and the gas outlet tube 7, so that the treatment equipment used for collecting and treating exhaust gas from concentrated hydrochloric acid trucks can maintain a slight negative pressure state during treatment.

[0046] After the concentrated hydrochloric acid exhaust gas is sprayed, it enters the treatment box 8 through the exhaust pipe 7 and the treatment pipe 9. The activated carbon mesh plate 10 and the adsorption mesh plate 11 will filter and adsorb the concentrated hydrochloric acid exhaust gas in sequence. Then, the vacuum valve is opened to discharge the concentrated hydrochloric acid exhaust gas, reducing the impact of the odor of the concentrated hydrochloric acid exhaust gas on the working environment and the health of workers.

[0047] refer to Figure 1 as well as Figure 2 The spray assembly includes a delivery pump 13, a delivery pipe 14, a dilution pipe 15, and a spray pipe 16. The delivery pump 13 is installed on one side of the absorption tank 3, and the inlet end of the delivery pump 13 is connected to the absorption tank 3. The delivery pipe 14 is connected between the delivery pump 13 and the absorption tower 1. The dilution pipe 15 is connected between the delivery pipe 14 and the collection cylinder 4, and a dilution valve is installed on the dilution pipe 15. The spray pipe 16 is connected between the delivery pipe 14 and multiple spray heads 6.

[0048] When the transfer pump 13 is started, the absorbent in the absorption tank 3 can enter the spray pipe 16 through the delivery pipe 14, so that multiple spray heads 6 can spray the concentrated hydrochloric acid tail gas evenly. At the same time, the dilution valve is opened, so that the absorbent can enter the collection cylinder 4 through the dilution pipe 15 to absorb the hydrochloric acid treatment liquid in the collection cylinder 4 for subsequent discharge and use. When the hydrochloric acid concentration in the transition tank 5 reaches a certain amount, the dilute hydrochloric acid can be directly discharged and used. The absorbent in the collection cylinder 4 and the transition tank 5 is replenished through the dilution pipe 15, and the hydrochloric acid concentration in the collection cylinder 4 and the transition tank 5 will not exceed the standard. It can also be directly recycled.

[0049] refer to Figure 3The circulation seat includes a circulation pump 17, a connecting pipe 18 and a circulation pipe 19. The circulation pump 17 is installed at the top of the transition box 5. The connecting pipe 18 connects the circulation pump 17 and the transition box 5. The circulation pipe 19 connects the output end of the circulation pump 17 and the absorption tower 1, and the circulation pipe 19 is connected to the spray pipe 16.

[0050] When the hydrochloric acid concentration in the collection cylinder 4 and the transition tank 5 is at a certain value, the circulation pump 17 can be started, so that the hydrochloric acid treatment solution in the transition tank 5 enters the spray pipe 16 through the connecting pipe 18 and the circulation pipe 19, thereby reusing the hydrochloric acid treatment solution in the collection cylinder 4 and the transition tank 5 and improving the recycling efficiency of the hydrochloric acid treatment solution.

[0051] refer to Figure 1 as well as Figure 4 The top of the processing box 8 is detachably connected to a protective cover 20, and the top of the protective cover 20 is fixedly connected to a positioning frame 21. The positioning frame 21 has a positioning plane that matches the outer side wall of the processing box 8, and the top of the positioning frame 21 is fixedly connected to a handle ring 22.

[0052] Applying force to the handle ring 22 causes the positioning frame 21 to move the protective cover 20, placing the protective cover 20 on the treatment box 8. This protects the inside of the treatment box 8, and at the same time, the protective cover 20 can come into contact with the activated carbon mesh plate 10 and the adsorption mesh plate 11 for filtration, increasing the stability of the activated carbon mesh plate 10 and the adsorption mesh plate 11 during use.

[0053] In summary, when the exhaust gas generated during the loading of concentrated hydrochloric acid enters the absorption tower 1 through the inlet pipe, the delivery pump 13 is started, so that the absorbent in the absorption tank 3 enters the spray pipe 16 through the liquid delivery pipe 14, so that multiple spray heads 6 can evenly spray the concentrated hydrochloric acid exhaust gas in the absorption tower 1. The hydrochloric acid treatment liquid after spraying will enter the transition box 5 through the collection cylinder 4. At the same time, the gas generated by spraying will enter the treatment box 8 through the outlet pipe 7 and the treatment pipe 9. The activated carbon mesh plate 10 and the adsorption mesh plate 11 can filter the gas and adsorb odors.

[0054] Furthermore, when it is necessary to dilute the hydrochloric acid treatment solution in the collection cylinder 4 and the transition tank 5, the dilution valve is opened so that the absorbent in the absorption tank 3 can enter the collection cylinder 4 through the dilution pipe 15.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for collecting and treating exhaust gas from concentrated hydrochloric acid trucks, comprising an absorption tower (1), wherein one side of the absorption tower (1) is connected to a gas supply pipe (2), characterized in that, Also includes: Absorption tank (3), which is located below the absorption tower (1); A collection cylinder (4) is disposed between the absorption tank (3) and the absorption tower (1), and the absorption tower (1) and the collection cylinder (4) are connected through each other; A transition box (5) is installed on one side of the collection cylinder (4), and the collection cylinder (4) and the transition box (5) are connected through each other; A circulation seat is installed between the transition box (5) and the absorption tower (1); Spray head (6), the spray head (6) is configured in multiple ways, the multiple spray heads (6) are linearly distributed in the absorption tower (1), and a spray assembly is installed between the absorption tank (3) and the multiple spray heads (6); An exhaust pipe (7) is connected to the top of the absorption tower (1), and a processing component is installed on the exhaust pipe (7).

2. The exhaust gas collection and treatment device for concentrated hydrochloric acid loading as described in claim 1, characterized in that, The processing component includes: A processing tank (8) is located on one side of the absorption tank (3); A processing pipe (9) is connected between the air outlet pipe (7) and the processing box (8), and a processing valve is installed on the processing pipe (9); Activated carbon mesh plate (10), which is detachably connected to the processing box (8); An adsorption mesh plate (11) is detachably installed on one side of the activated carbon mesh plate (10); A vacuum tube (12) is connected to one side of the processing box (8), and a vacuum valve is installed on the vacuum tube (12).

3. The exhaust gas collection and treatment device for concentrated hydrochloric acid loading as described in claim 2, characterized in that, The spray assembly includes: A delivery pump (13) is installed on one side of the absorption tank (3), and the inlet end of the delivery pump (13) is connected to the absorption tank (3). Infusion pipe (14), the infusion pipe (14) is connected between the delivery pump (13) and the absorption tower (1); A dilution tube (15) is connected between the infusion tube (14) and the collection cylinder (4), and a dilution valve is installed on the dilution tube (15); A spray pipe (16) is connected between the infusion pipe (14) and the plurality of spray heads (6).

4. The exhaust gas collection and treatment device for concentrated hydrochloric acid loading as described in claim 3, characterized in that, The circulation seat includes: A circulation pump (17) is installed at the top of the transition box (5); A connecting pipe (18) is connected between the circulating pump (17) and the transition box (5); A circulation pipe (19) is connected between the output end of the circulation pump (17) and the absorption tower (1), and the circulation pipe (19) is connected to the spray pipe (16).

5. The exhaust gas collection and treatment device for concentrated hydrochloric acid loading as described in claim 4, characterized in that, The top of the processing box (8) is detachably connected to a protective cover (20), and the top of the protective cover (20) is fixedly connected to a positioning frame (21). The positioning frame (21) has a positioning plane that matches the outer side wall of the processing box (8), and the top of the positioning frame (21) is fixedly connected to a handle ring (22).

6. The exhaust gas collection and treatment device for concentrated hydrochloric acid loading as described in claim 5, characterized in that, The collecting cylinder (4) is trapezoidal, and the inner wall of the collecting cylinder (4) is inclined toward one side of the transition box (5).

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