Hydrochloric acid mist absorption device

Abstract

The utility model discloses a hydrochloric acid mist absorption device which comprises a box body, a sealing door movably connected to the box body, an air inlet pipe fixedly arranged on the side wall of the box body, an electromagnetic valve fixedly arranged in the middle of the air inlet pipe and a partition plate fixedly arranged between the inner walls of the box body. The neutralization assembly is arranged in the box body and is used for treating hydrochloric acid mist; and the neutralization assembly comprises a bottom box for placing an acid mist absorbent and a spray head for absorbing the hydrochloric acid mist by a wet method. The utility model belongs to the technical field of hydrochloric acid mist treatment, and particularly relates to a hydrochloric acid mist absorption device which is used for efficiently neutralizing hydrochloric acid mist generated during loading and avoiding the conditions that the atmospheric quality is reduced and the body health of loading personnel is influenced due to direct discharge.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydrochloric acid mist treatment, and particularly relates to a hydrochloric acid mist absorption device. Background Art

[0002] In the process of producing caustic soda by the ion membrane method, the electrolysis process produces 32% caustic soda solution, which is pumped to the caustic soda tank area through the alkali solution intermediate tank. The caustic soda is then transported to the outside of the factory area by train and car through the tank area loading trestle. The last process of ion membrane caustic soda is the hydrochloric acid synthesis process, which is used to produce qualified hydrochloric acid that meets industrial requirements. Hydrochloric acid is a volatile liquid and it is very easy to volatilize hydrogen chloride gas, which pollutes the surrounding environment. Especially in the summer when it is rainy and the air pressure is low, the tank area is filled with smoke during loading, resulting in very poor air quality, affecting the health of the loading personnel, causing environmental pollution, and corroding the surrounding pipeline facilities. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a hydrochloric acid mist absorption device, which can efficiently neutralize the hydrochloric acid mist generated during loading, so as to avoid the deterioration of air quality and the impact on the health of the loaders caused by direct discharge.

[0004] The technical scheme adopted by the utility model is as follows: a hydrochloric acid mist absorption device, comprising a box body, a sealing door movably connected to the box body, an air intake pipe fixedly arranged on the side wall of the box body, an electromagnetic valve fixedly arranged in the middle position of the air intake pipe and a partition fixedly arranged between the inner walls of the box body, and also comprising a neutralization component arranged inside the box body for treating the hydrochloric acid mist, wherein the neutralization component comprises a bottom box for placing an acid mist absorbent and a nozzle for wet absorbing the hydrochloric acid mist.

[0005] Furthermore, the neutralization component also includes a box body fixedly mounted on the outer wall of the box body, a water pump fixedly mounted on the outer wall of the box body, a fixed plate fixedly mounted on the inner wall of the box body, an activated carbon adsorption plate between the pull-out arrangement and the fixed plate, an air pump fixedly mounted on the top wall of the partition, a protective plate fixedly mounted on the top wall of the partition, a ventilation fan fixedly mounted between the inner walls of the box body, a collection box fixedly mounted on the outer wall of the box body, and a reflux pipe connected between the inside of the box body and the collection box.

[0006] Furthermore, the nozzles are fixedly arranged at the output end of the water pump, the nozzles are arranged in a horizontally evenly spaced manner, the water pump input end is arranged inside the box body, the bottom box is fixedly arranged on the bottom wall of the box body, and the fixing plates are symmetrically arranged in pairs.

[0007] Furthermore, the middle position of the top of the box body is opened.

[0008] Furthermore, the top wall of the partition is inclined, and the bottom wall of the partition is higher in the middle and lower on both sides.

[0009] Furthermore, the two sides of the protective plate are arranged to be through, and the top of the protective plate is arranged to be arc-shaped.

[0010] Furthermore, a one-way valve is provided in the middle of the reflux pipe.

[0011] After adopting the above structure, the beneficial effects of the utility model are as follows: A hydrochloric acid mist absorption device proposed by the utility model:

[0012] (1) Acid mist absorbent, such as sodium hydroxide, can be added to the bottom box. The hydrochloric acid mist that enters the box can come into contact with the acid mist absorbent to cause a neutralization reaction.

[0013] (2) Water can be sprayed into the box by spraying or water curtain through multiple nozzles, and the hydrochloric acid mist reacts with the water;

[0014] (3) The water sprayed from the nozzle can be recycled and the impact of the water spray on the vacuum pump can be reduced;

[0015] (4) The overall structural design is simple and reasonable, which improves the absorption and treatment effect of hydrochloric acid mist and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of a hydrochloric acid mist absorption device proposed by the utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of a hydrochloric acid mist absorption device proposed by the utility model;

[0019] Figure 3 This is a cross-sectional view of a hydrochloric acid mist absorption device proposed by the utility model;

[0020] Figure 4 This is a front view of the internal structure of a hydrochloric acid mist absorption device proposed by the utility model;

[0021] Figure 5 This is a cross-sectional view from another perspective of the hydrochloric acid mist absorption device proposed by the utility model.

[0022] In the attached drawings: 1. box body, 2. sealing door, 3. air inlet pipe, 4. solenoid valve, 5. partition, 6. bottom box, 7. nozzle, 8. box body, 9. water pump, 10. fixing plate, 11. activated carbon adsorption plate, 12. vacuum pump, 13. protective plate, 14. ventilation fan, 15. collection box, 16. reflux pipe, 17. one-way valve. DETAILED DESCRIPTION

[0023] like Figure 1-2 As shown, a hydrochloric acid mist absorption device comprises a box body 1, a sealing door 2 movably connected to the box body 1, an air intake pipe 3 fixedly arranged on the side wall of the box body 1, a solenoid valve 4 fixedly arranged at the middle position of the air intake pipe 3 and a partition 5 fixedly arranged between the inner walls of the box body 1, and also comprises a neutralization component arranged inside the box body 1 for treating the hydrochloric acid mist, the neutralization component comprises a bottom box 6 for placing an acid mist absorbent and a nozzle 7 for wet absorbing the hydrochloric acid mist.

[0024] like Figure 1-5 As shown, the hydrochloric acid mist can be neutralized and absorbed by setting the following structure. The neutralization component also includes a box body 8 fixedly installed on the outer wall of the box body 1, a water pump 9 fixedly installed on the outer wall of the box body 1, a fixed plate 10 fixedly installed on the inner wall of the box body 1, an activated carbon adsorption plate 11 between the pull-out setting and the fixed plate 10, an air pump 12 fixedly installed on the top wall of the partition 5, a protective plate 13 fixedly installed on the top wall of the partition 5, a ventilation fan 14 fixedly installed between the inner walls of the box body 1, a collecting box 15 fixedly installed on the outer wall of the box body 1, and a reflux pipe 16 connected between the inside of the box body 1 and the collecting box 15, the nozzle 7 is fixedly installed at the output end of the water pump 9, and the nozzles 7 are arranged at equal intervals in the horizontal direction, the input end of the water pump 9 is arranged inside the box body 8, the bottom box 6 is fixedly installed on the inner bottom wall of the box body 1, and the fixed plates 10 are symmetrically arranged in pairs.

[0025] In order to facilitate the flow of hydrochloric acid mist and the recovery of waste water, the top wall of the partition 5 is inclined, and the bottom wall of the partition 5 is high in the middle and low on both sides.

[0026] The middle position of the top of the box body 1 is open, the two sides of the protection plate 13 are through-connected, the top of the protection plate 13 is arc-shaped, and a one-way valve 17 is provided in the middle of the return pipe 16.

[0027] When in use, one end of the air intake pipe 3 is placed at the loading port of the tank area through an external connecting pipe, a proper amount of sodium hydroxide is added to the bottom box 6, a proper amount of water is added to the box body 8, the solenoid valve 4 is opened, and the hydrochloric acid mist enters the interior of the box body 1 through the air intake pipe 3, and the hydrochloric acid mist contacts with the sodium hydroxide to cause a primary neutralization reaction, and the water pump 9 and the air pump 12 are turned on at the same time, and the air pump 12 draws the primary neutralized hydrochloric acid mist into the top of the partition 5, and the water is sprayed into the box body 1 by spraying or water curtain through multiple nozzles 7, and the hydrochloric acid mist reacts with the water. Acidic droplets are formed and fall onto the top of the partition 5. The one-way valve 17 is opened, and the water sprayed from the nozzle 7 flows into the collection box 15 through the reflux pipe 16 for recovery treatment. The sprayed water flow reduces the impact of the water flow spraying on the vacuum pump 12 under the setting of the protective plate 13, and then the ventilation fan 14 is turned on. The ventilation fan 14 is operated to extract the hydrochloric acid mist outward. During this period, the hydrochloric acid mist is adsorbed again by the activated carbon adsorption plate 11, and the acid mist is adsorbed on the surface of the activated carbon by physical adsorption. The ventilation fan 14 accelerates the flow rate of the hydrochloric acid mist inside the box 1.

[0028] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the scope of protection of the utility model.

Claims

1. A hydrochloric acid mist absorption device, comprising a box, a sealing door movably connected to the box, an air inlet pipe fixedly arranged on the side wall of the box, a solenoid valve fixedly arranged in the middle of the air inlet pipe and a partition fixedly arranged between the inner walls of the box, characterized in that: It also includes a neutralization component arranged inside the box body for treating hydrochloric acid mist. The neutralization component includes a bottom box for placing an acid mist absorbent and a nozzle for wet absorbing hydrochloric acid mist.

2. A hydrochloric acid mist absorption device according to claim 1, characterized in that: The neutralization component also includes a box body fixedly mounted on the outer wall of the box body, a water pump fixedly mounted on the outer wall of the box body, a fixed plate fixedly mounted on the inner wall of the box body, an activated carbon adsorption plate between the pull-out device and the fixed plate, an air pump fixedly mounted on the top wall of the partition, a protective plate fixedly mounted on the top wall of the partition, a ventilation fan fixedly mounted between the inner walls of the box body, a collection box fixedly mounted on the outer wall of the box body, and a reflux pipe connected between the inside of the box body and the collection box.

3. A hydrochloric acid mist absorption device according to claim 2, characterized in that: The nozzles are fixedly arranged at the output end of the water pump, and are arranged in a horizontally evenly spaced manner. The input end of the water pump is arranged inside the box body, and the bottom box is fixedly arranged on the bottom wall of the box body. The fixing plates are symmetrically arranged in pairs.

4. A hydrochloric acid mist absorption device according to claim 3, characterized in that: The middle position of the top of the box body is opened.

5. A hydrochloric acid mist absorption device according to claim 4, characterized in that: The top wall of the partition is arranged in an inclined manner, and the bottom wall of the partition is arranged to be high in the middle and low on both sides.

6. A hydrochloric acid mist absorption device according to claim 5, characterized in that: The two sides of the protection plate are connected, and the top of the protection plate is arc-shaped.

7. A hydrochloric acid mist absorption device according to claim 6, characterized in that: A one-way valve is arranged in the middle of the reflux pipe.

Images