Acid mist treatment device for hydrochloric acid pool

Abstract

The utility model relates to an acid mist treatment device for a hydrochloric acid tank, which comprises an acid mist absorption tower capable of reacting and absorbing acid mist, the side wall of the acid mist absorption tower is connected with a mixed gas conveying pipe capable of driving acid mist to directionally flow by continuously inputting air in a hydrochloric acid tank and an alkali liquor input pipe capable of adjustably conveying alkali liquor into the acid mist absorption tower; the input end of the alkali liquor input pipe is connected with an alkali liquor supply assembly, and the output end, inserted into the acid mist absorption tower, of the alkali liquor input pipe is connected with a multi-stage spraying assembly capable of spraying alkali liquor to point positions in a layered manner; the bottom of the acid mist absorption tower is also provided with a waste liquid collection assembly capable of transferring and storing waste liquid generated by the combination reaction of the alkali liquor and the acid mist. According to the utility model, non-contact traction can be carried out on acid mist in a negative pressure traction mode, and meanwhile, an acid mist dispersing structure is constructed to improve the acid mist compounding effect and sufficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to acid mist treatment equipment technical field especially relates to a hydrochloric acid pool acid mist treatment device. BACKGROUND

[0002] Because the acid liquid volume in the hydrochloric acid storage tank will change with use, therefore must set up the breathing mouth with the outside environment communication, to ensure that the air pressure balance in the tank. Hydrochloric acid belongs to volatile acid, and the volatilized acid meets the air and will produce acid mist, and part of acid mist will overflow from the breathing mouth. The emission of acid mist will cause the acid mist and acid gas in the air of the workplace to diffuse, and after being discharged into the atmosphere, it will also cause the acid deposition in the atmospheric environment. It not only endangers the health of workers and residents around the plant, corrodes the plant equipment and precision instruments, causes the loss of production and life, but also will have adverse effects on the survival of crops and other animals and plants, cause damage to buildings, historical relics and other buildings, etc. The prior art usually uses suspended plastic balls covering, foam sealing liquid level and other methods to prevent acid mist overflow, but these methods only play a blocking role, and the actual effect of preventing acid mist overflow is poor.

[0003] The patent document with the publication number CN207928956U discloses a hydrochloric acid loading acid mist treatment device, relates to the field of hydrochloric acid loading supporting equipment, and provides a device capable of collecting and treating the volatilized hydrochloric acid gas in the hydrochloric acid loading process. The device comprises an acid mist absorption device and a hydrochloric acid absorption tower; the hydrochloric acid absorption tower comprises a tower body, and a lower absorption liquid storage space, at least two spraying devices, a filler absorption layer, a conical gas collection cover and an upper absorption liquid storage space are sequentially arranged in the tower body from bottom to top; the upper absorption liquid storage space and the lower absorption liquid storage space are communicated through an absorption liquid circulation pipe, and a circulating pump is arranged on the absorption liquid circulation pipe; the upper absorption liquid storage space and each spraying device are communicated through a spraying pipeline, and a spraying valve is arranged on each spraying pipeline; the gas collection cover is connected with an exhaust pipe at the top, and the exhaust pipe extends out of the tower body; the number of acid mist absorption devices is at least two, and each acid mist absorption device is communicated with the internal space of the tower body.

[0004] The filler absorption tower is also a commonly used acid mist treatment method. The method mainly uses a fan to suck the acid mist into the tower for water spray to make the gas and liquid contact, and the acid and alkali are neutralized to achieve the purification effect. However, the built-in functional components such as circuit, energy conversion element and driving part of the fan will be corroded by the acid mist after long-time contact with the acid mist, and the service life will be greatly shortened, which greatly increases the treatment cost and maintenance frequency. In addition, when the hydrogen chloride content to be absorbed is high, a large amount of heat will be released during the absorption process. Since the filler absorption belongs to an adiabatic absorption method, the large amount of heat generated during the adiabatic absorption process cannot be discharged, thereby reducing the absorption efficiency. Finally, the built-in acid mist discharge structure of the acid mist treatment device disclosed in the prior art cannot uniformly disperse the acid mist on the cross section of the tank cavity, resulting in regional deviation of the subsequent neutralization and combination effect and efficiency, and the self-diffusion of the acid mist will cause the acid mist in the relatively concentrated area to not fully combine with the alkali solution, and part of the acid mist will be easily discharged without being effectively converted. Practical new type content

[0005] The utility model aims at providing a kind of hydrochloric acid pool acid mist treatment device that can be by negative pressure traction mode to the acid mist is carried out non-contact traction, while constructing acid mist dispersion structure to improve acid mist combination effect and fullness, to solve the acid mist of existing acid mist treatment device and directly contact with acid mist and be easily corroded by acid mist, and directly output acid mist concentration is higher, it is easy to produce excessive heat in decomposition reaction process and hinder the progress of reaction, and high concentration of acid mist is easily limited by equipment decomposition capacity and cannot be fully decomposed defect, in addition, the dispersion degree of existing acid mist treatment equipment is poor, and the problem of not being able to guarantee being fully decomposed cannot be guaranteed.

[0006] The technical scheme adopted by the utility model is: a kind of hydrochloric acid pool acid mist treatment device, including the acid mist absorption tower that can react and absorb acid mist, the side wall of the acid mist absorption tower is connected with the mixed gas pipe that can drive acid mist directional flow by continuously inputting the air of hydrochloric acid pool and the alkali liquor input pipe that can adjustly transport alkali liquor to the acid mist absorption tower;The input end of the alkali liquor input pipe is connected with alkali liquor supply assembly, and the output end of the alkali liquor input pipe inserted into the acid mist absorption tower is connected with the multistage spray assembly that can spray alkali liquor in layers and to point position;The bottom of the acid mist absorption tower is further provided with waste liquid collection assembly that can transfer and store waste liquid generated by the combination reaction of alkali liquor and acid mist.

[0007] According to a preferred embodiment, the acid mist absorption tower includes a main tank body, a converging top and a top discharge port, wherein the top of the main tank body is connected with the top discharge port through the converging top, a plurality of groups of corrosion-resistant fillers below the multistage spray assembly are vertically spaced in the main tank body, and a plurality of inspection windows are formed in the side surface of the main tank body.

[0008] According to a preferred embodiment, the alkali liquor supply assembly comprises an alkali liquor mixing tank, a storage tank, a supply pump and a mixing stirring unit, wherein the output end of the alkali liquor mixing tank is communicated with the storage tank through the supply pump capable of directing the suction of alkali liquor in the tank cavity, and the storage tank is connected with the alkali liquor input pipe; a mixing stirring unit capable of stirring and mixing the solution and medicament added into the tank cavity is further inserted at the top of the alkali liquor mixing tank, and a medicament adding port is further provided on the top surface of the alkali liquor mixing tank.

[0009] According to a preferred embodiment, the waste liquor output pipeline of the waste liquor collection assembly is detachably connected on the bottom side of the main tank body, and the output end of the waste liquor output pipeline is connected with a waste liquor lifting pump, so that the waste liquor in the main tank body is directed to be discharged externally to a waste liquor temporary storage tank or an externally connected treatment device.

[0010] According to a preferred embodiment, one end of the mixed gas delivery pipe inserted into the acid mist absorption tower is connected with an exhaust assembly capable of dispersing and discharging the air-diluted and guided acid mist.

[0011] According to a preferred embodiment, the exhaust assembly comprises an air inlet elbow, a sealing adapter, a gas guide rotary turbine, an exhaust pipe and a shunt exhaust branch pipe, wherein the air inlet elbow is connected with the output end of the mixed gas delivery pipe, and the output end of the air inlet elbow is connected with the exhaust pipe through the sealing adapter; the gas guide rotary turbine capable of driving the exhaust pipe to rotate is arranged in the sealing adapter; a plurality of shunt exhaust branch pipes capable of multi-point exhaust are annularly and spacedly arranged on the pipe side wall of the exhaust pipe.

[0012] According to a preferred embodiment, a condensing pipe is spirally coiled on the transverse pipe body of the air inlet elbow, and the condensing pipe can form a closed loop circulation pipeline with an externally arranged circulating refrigeration unit to continuously cool the diluted acid mist in the transverse pipe body.

[0013] According to a preferred embodiment, the turbine body of the gas guide rotary turbine is installed in the fixed pipe body of the sealing adapter, and the turbine blades of the turbine body are connected with the movable pipe body of the sealing adapter through a linkage rod.

[0014] According to a preferred embodiment, a plurality of exhaust ports are spacedly arranged on the pipe body of the shunt exhaust branch pipe, and the exhaust ports on adjacent shunt exhaust branch pipes are staggered; a double-head cone is supported by a positioning support rod connected with the pipe body of the shunt exhaust branch pipe above the exhaust port.

[0015] According to a preferred embodiment, the mixed gas delivery pipe comprises a main air inlet pipe, an air inlet pipe, an acid mist inlet pipe and a negative pressure traction pipe, wherein the output end of the main air inlet pipe is connected with the air inlet elbow, and the input end of the main air inlet pipe is connected with the air inlet pipe and the acid mist inlet pipe in parallel through the negative pressure traction pipe.

[0016] The utility model discloses the beneficial effects are:

[0017] The mixed gas delivery pipe 2 of the application can utilize the local pressure difference generated by the air flow in the negative pressure traction pipe, thereby effectively attracting the acid mist to flow directionally with the air flow, and mixing with the air during the flow in the same pipe, thereby effectively reducing the concentration of the acid mist, so that the acid mist can fully react with the lye during the subsequent neutralization and decomposition process to ensure the completion degree of the reaction.

[0018] The application can make the multi-layer spiral spray head arranged in multiple layers in the main tank body, so that the multi-stage processing can effectively react with the acid mist to avoid the existence of residual acid mist discharge.

[0019] The gas guide rotating turbine arranged in the application can rotate under the driving of the pressurized acid mist dilution gas flow flowing through the sealed adapter, thereby effectively stirring the mixed gas flow of the acid mist and the air, so that the acid mist can be more effectively mixed with the air during the stirring, improving the uniformity of the mixing. In addition, the rotation of the gas guide rotating turbine can also drive the exhaust pipe and the shunt exhaust branch pipe to rotate, thereby improving the dispersion uniformity of the dilution acid mist gas flow discharged from the shunt exhaust branch pipe in the main tank body, avoiding the local area deviation of the neutralization reaction in the tank cavity, improving the reaction fullness and effect, and avoiding the discharge of residual acid mist. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a preferred structure diagram of the hydrochloric acid pool acid mist treatment device provided by the utility model;

[0021] Figure 2 is a preferred plane diagram of the hydrochloric acid pool acid mist treatment device provided by the utility model;

[0022] Figure 3 is a preferred structure diagram of the mixed gas delivery pipe of the hydrochloric acid pool acid mist treatment device provided by the utility model;

[0023] Figure 4 is a preferred structure diagram of the exhaust assembly of the hydrochloric acid pool acid mist treatment device provided by the utility model.

[0024] LIST OF REFERENCE NUMERALS

[0025] 1: acid mist absorption tower; 2: mixed gas delivery pipe; 3: lye input pipe; 4: lye supply assembly; 5: multi-stage spraying assembly; 6: waste liquid collection assembly; 7: exhaust assembly; 11: main tank body; 12: converging top; 13: top discharge port; 111: corrosion-resistant filler; 112: maintenance viewing window; 121: demisting filler; 21: main air inlet pipe; 22: air inlet pipe; 23: acid mist inlet pipe; 24: negative pressure traction pipe; 41: lye mixing tank; 42: liquid storage tank; 43: supply pump; 44: mixing and stirring unit; 411: dosing port; 51: spraying discharge pipe; 52: spraying liquid inlet pipe; 53: spiral spray head; 61: waste liquid output pipeline; 62: waste liquid booster pump; 63: waste liquid temporary storage tank; 71: air inlet elbow; 72: sealing adapter; 73: air guide rotary turbine; 74: exhaust pipe; 75: shunt exhaust branch pipe; 711: transversely arranged pipe body; 712: condensing pipe; 713: external circulating refrigeration unit; 721: fixed pipe body; 722: movable pipe body; 731: turbine main body; 732: turbine blade; 733: linkage rod; 751: exhaust port; 752: alignment support rod; 753: double-head cone. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the present application will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings structure is only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0027] The technical solutions provided by the present application will be described in detail below by way of embodiments with reference to the drawings. It should be noted that the description of these embodiments is used to help understand the present application, and does not constitute a limitation on the present application. In some examples, since some embodiments belong to prior art or conventional technology, they are not described or not described in detail.

[0028] In addition, the technical features described in this paper, or the steps in all the methods or processes disclosed, can be combined in any suitable manner in one or more embodiments, except for mutually exclusive features and / or steps. Those skilled in the art will readily understand that the order of steps or operations of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only used for illustration and does not imply a requirement for a certain order, unless explicitly stated.

[0029] The serial numbers of components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "coupling" in this application include direct and indirect connection (coupling) under reasonable circumstances (not self-contradictory).

[0030] The details will be described below in conjunction with the drawings.

[0031] Embodiment 1

[0032] The application provides a hydrochloric acid mist treatment device, which comprises an acid mist absorption tower 1, a mixed gas supply pipe 2, an alkali liquid input pipe 3, an alkali liquid supply assembly 4, a multi-stage spraying assembly 5, a waste liquid collection assembly 6 and an exhaust assembly 7.

[0033] According to Figures 1-4 According to a specific embodiment shown, the acid mist absorption tower 1 can use the alkali liquid input into the inside to react and absorb the acid mist input into the inside in multiple stages. The mixed gas supply pipe 2 capable of driving the directional flow of the acid mist by continuously inputting the air of the hydrochloric acid pool and the alkali liquid input pipe 3 capable of adjusting the alkali liquid to be input into the acid mist absorption tower 1 are connected to the side wall of the acid mist absorption tower 1. The input end of the alkali liquid input pipe 3 is connected with the alkali liquid supply assembly 4. The output end of the alkali liquid input pipe 3 inserted into the acid mist absorption tower 1 is connected with the multi-stage spraying assembly 5 capable of spraying the alkali liquid in layers and at points. The bottom of the acid mist absorption tower 1 is further provided with the waste liquid collection assembly 6 capable of transferring and storing the waste liquid generated by the combination reaction of the alkali liquid and the acid mist. One end of the mixed gas supply pipe 2 inserted into the acid mist absorption tower 1 is connected with the exhaust assembly 7 capable of dispersing and discharging the acid mist diluted and guided by the air.

[0034] Preferably, the acid mist absorption tower 1 comprises a main tank body 11, a converging top 12 and a top discharge port 13. Preferably, the top of the main tank body 11 is connected with the top discharge port 13 through the converging top 12. Preferably, a plurality of groups of corrosion-resistant fillers 111 under the multi-stage spraying assembly 5 are vertically spaced in the main tank body 11. Specifically, the corrosion-resistant filler 111 is the PP filler commonly used in acid mist treatment. Further preferably, a plurality of inspection windows 112 are formed in the side surface of the main tank body 11. Preferably, the converging top 12 is filled with the demisting filler 121 capable of filtering the tail gas. Specifically, the demisting filler 121 is a hollow ball filler made of a material with a large specific surface area, a small resistance and good corrosion resistance, such as a PP one-piece hollow ball filler or a multi-surface hollow ball filler. Specifically, the top discharge port 13 can be a commonly used conventional rainproof exhaust structure.

[0035] Preferably, the mixed gas delivery pipe 2 comprises a main air inlet pipe 21, an air inlet pipe 22, an acid mist inlet pipe 23 and a negative pressure traction pipe 24. Preferably, the output end of the main air inlet pipe 21 is connected with the air inlet elbow 71. Further preferably, the input end of the main air inlet pipe 21 is connected with the air inlet pipe 22 and the acid mist inlet pipe 23 in parallel through the negative pressure traction pipe 24. Specifically, the present application is used for processing the natural acid mist volatilized after the sealing of the hydrochloric acid pool, in order to reduce the possibility of acid mist volatilized from the sealed pool to the outside world, the sealed hydrochloric acid pool is only reserved with a breathing port, a hydrochloric acid filling port and a hydrochloric acid extraction port. The input port of the acid mist inlet pipe 23 is connected with the breathing port of the hydrochloric acid pool. Specifically, the negative pressure traction pipe 24 comprises a drainage cannula, a flared pipe and a converging pipe, wherein the drainage cannula and the flared pipe are connected with the air inlet pipe 22 and the acid mist inlet pipe 23 respectively. The drainage cannula is in communication with the converging pipe in the manner of being inserted on the flared pipe, and the converging pipe is also in communication with the flared pipe, so that in the case that the drainage cannula high-pressure tractions the air flow to input into the converging pipe, the local air pressure change is generated in the pipe cavity due to the directional flow of the air flow, so as to form a negative pressure environment, so that the acid mist in the flared pipe flows directionally under the action of the negative pressure in the pipe, so as to mix with the air flow and flow directionally along the air flow. Preferably, the air inlet pipe 22 is connected with an external pressurized air pump. Preferably, the acid mist inlet pipe 23 is connected with the breathing port of the hydrochloric acid pool. Further preferably, the main flow pipe body of the air inlet pipe 22 is provided with a shunt branch pipe, so as to ensure the air pressure stability in the hydrochloric acid pool after the acid mist is discharged by providing a certain amount of air for the hydrochloric acid pool. Preferably, the main air inlet pipe 21 and the air inlet pipe 22 are both provided with a one-way valve. The mixed gas delivery pipe 2 provided in the present application can utilize the local pressure difference generated by the air flow in the negative pressure traction pipe 24, so as to effectively traction the acid mist to flow directionally along the air flow, and mix with the air in the process of flowing in the same pipe, so as to effectively reduce the concentration of the acid mist, so that the acid mist can fully react with the alkali liquor in the subsequent alkali liquor neutralization and decomposition process to ensure the completion degree of the reaction.

[0036] Preferably, the alkali solution supply assembly 4 comprises an alkali solution mixing tank 41, a storage tank 42, a supply pump 43 and a mixing stirring unit 44. Preferably, the output end of the alkali solution mixing tank 41 is communicated with the storage tank 42 through the supply pump 43 capable of orienting the suction of the alkali solution in the tank cavity thereof. Preferably, the storage tank 42 is connected with the alkali solution input pipe 3, so that the storage tank 42 continuously and controllably supplies the finished alkali solution to the alkali solution input pipe 3 through the water pump. Preferably, a mixing stirring unit 44 capable of stirring and mixing the solution and medicament added to the tank cavity thereof is also inserted at the top of the alkali solution mixing tank 41. Further preferably, the top surface of the alkali solution mixing tank 41 is also provided with a medicament inlet 411 for inputting the solution and medicament. Preferably, the alkali solution used in the present application is sodium hydroxide solution, which is converted into sodium chloride and aqueous solution by the chemical decomposition reaction of sodium hydroxide solution with hydrochloric acid. The alkali solution supply assembly 4 provided in the present application can continuously and in advance prepare the alkali solution required for the neutralization reaction, thereby providing sufficient reaction materials for acid mist treatment.

[0037] Preferably, the multi-stage spraying assembly 5 comprises a spraying bank 51 arranged above the corrosion-resistant filler 111 in layers, and a spraying liquid inlet pipe 52 communicated with the spraying bank 51 and located outside the acid mist absorption tower 1. Further preferably, the spraying bank 51 is provided with spiral nozzles 53 distributed in a dot matrix at intervals. The present application arranges multiple spraying banks 51 in layers in the main tank body 11, so that the spiral nozzles 53 arranged in multiple stages can be segmented and treated in multiple layers for acid mist neutralization, so that the multi-stage treatment can effectively react with the acid mist to avoid the existence of residual acid mist discharge.

[0038] Preferably, the waste liquid collection assembly 6 is detachably connected to the bottom side of the main tank body 11 through the waste liquid output pipeline 61, so that it can effectively discharge the combined waste liquid collected at the bottom of the main tank body 11. Preferably, the output end of the waste liquid output pipeline 61 is connected with a waste liquid lifting pump 62, so that the waste liquid in the main tank body 11 is oriented to be discharged to the waste liquid temporary storage tank 63 or the external treatment equipment. Specifically, the waste liquid temporary storage tank 63 can also be connected with the external treatment equipment through a liquid pipeline. The waste liquid output pipeline 61 provided in the present application can continuously discharge the waste liquid generated in the neutralization reaction in the main tank body 11 under the traction of the waste liquid lifting pump 62, and directly discharge or transfer to the waste liquid temporary storage tank 63 for short-term storage according to the situation of the external equipment.

[0039] Preferably, the exhaust assembly 7 comprises an air inlet elbow 71, a sealing adapter 72, a gas guide rotating turbine 73, an exhaust pipe 74 and branch exhaust pipes 75. Preferably, the air inlet elbow 71 is connected with the output end of the mixed gas delivery pipe 2. Further preferably, the output end of the air inlet elbow 71 is connected with the exhaust pipe 74 through the sealing adapter 72, so that the exhaust pipe 74 can be positioned in the lower section of the main tank body 11 in a coaxial manner. Preferably, the gas guide rotating turbine 73 is arranged in the sealing adapter 72 to drive the rotation of the exhaust pipe 74. Specifically, the gas guide rotating turbine 73 can be driven to rotate by the airflow flowing through its inner cavity, thereby driving the synchronous rotation of the exhaust pipe 74. Preferably, a plurality of branch exhaust pipes 75 capable of multi-point exhaust are annularly and spacedly arranged on the pipe side wall of the exhaust pipe 74. Further preferably, the exhaust pipe 74 and the branch exhaust pipes 75 are both tubular fittings made of polytetrafluoroethylene or other ultra-light corrosion-resistant materials. This is because polytetrafluoroethylene has sealing property, high lubrication and non-stickiness, electrical insulation and good anti-aging ability, excellent temperature resistance, and can work for a long time at a temperature of +250°C to -180°C. The polytetrafluoroethylene material also has good anti-fouling and anti-sticking properties, and has very small and similar dynamic and static friction coefficient values, as well as good friction-reducing lubrication performance, so that when used as a sealing rotating joint structure, it can reduce the friction between the sealing surfaces, reduce the operating torque, and improve the service life of the product. The gas guide rotating turbine 73 arranged in the present application can be driven to rotate by the pressurized acid mist dilution gas flowing through the sealing adapter 72, thereby effectively stirring the mixed gas flow of acid mist and air, so that the acid mist can be more effectively mixed with the air during stirring, improving the uniformity of the mixture. In addition, the rotation of the gas guide rotating turbine 73 can also drive the rotation of the exhaust pipe 74 and the branch exhaust pipes 75, thereby improving the dispersion uniformity of the dilution acid mist gas flow discharged from the branch exhaust pipes 75 in the main tank body 11.

[0040] Preferably, the transversely arranged pipe body 711 of the air inlet elbow 71 is spirally wound with a condenser pipe 712. Further preferably, the condenser pipe 712 can form a closed loop circulation pipeline with the external circulating refrigeration unit 713 to continuously cool the dilution acid mist in the transversely arranged pipe body 711. The circulating cooling liquid in the circulation pipeline formed by the condenser pipe 712 and the external circulating refrigeration unit 713 can continuously cool the acid mist flowing through the transversely arranged pipe body 711, so that the temperature of the acid mist during the subsequent neutralization reaction is effectively reduced to avoid the temperature of the reaction heat being too high to hinder further reaction, thereby improving the efficiency and completeness of the reaction.

[0041] Preferably, the turbine body 731 of the air guide rotary turbine 73 is installed in the fixed pipe body 721 of the sealing adapter 72. Further preferably, the turbine blades 732 of the turbine body 731 are connected with the movable pipe body 722 of the sealing adapter 72 through the linkage rods 733, so that the movable pipe body 722 can be synchronously rotated when the turbine blades 732 are rotated under the driving of the air flow, and the axial end of the movable pipe body 722 connected with the exhaust pipe 74 is synchronously rotated. The turbine blades 732 provided in the present application can be rotated under the driving of the air flow flowing through the inner cavity of the turbine body 731, so as to shear and stir the air flow, so that the acid mist can be fully mixed with the air. The rotating turbine blades 732 can also drive the exhaust pipe 74 to synchronously rotate through the linkage rods 733, so that the air flow output by the branch exhaust pipes 75 can improve the uniformity of the mixed gas dispersion output by changing the exit point, so as to improve the distribution uniformity of the acid mist and the alkali solution reaction, and improve the reaction effect and effectiveness.

[0042] Preferably, a plurality of exhaust ports 751 are arranged on the pipe body of the branch exhaust pipe 75. Specifically, the exhaust ports 751 on the adjacent branch exhaust pipes 75 are arranged in a staggered manner, so that the diluted acid mist output by the plurality of branch exhaust pipes 75 can be effectively and uniformly dispersed during the rotation of the branch exhaust pipes 75 following the exhaust pipe 74, so as to ensure the sufficiency and effectiveness of the chemical reaction by improving the distribution uniformity of the diluted acid mist in the tank. Preferably, a double-head cone 753 capable of shunting the diluted acid mist and blocking the downward flow of the combined waste liquid is supported by the alignment support rod 752 connected with the pipe body of the branch exhaust pipe 75 above the exhaust port 751. Preferably, the exhaust pipe 74, the branch exhaust pipe 75 and their accessories are made of light and corrosion-resistant materials, so as to improve the feasibility of being driven to rotate by the air flow, slow down the speed of being eroded by the acid mist, and improve the service period and the uniformity of the acid mist exhaust.

[0043] The present application is not limited to the above-mentioned optional embodiments, and anyone can derive other various forms of products under the inspiration of the present application, but regardless of any changes in shape or structure, any technical solutions falling within the scope defined by the claims of the present application fall within the protection scope of the present application. Those skilled in the art should understand that the present application specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of the present application is defined by the claims and their equivalents. In the entire text, the features introduced by "preferably" are only optional ways, and should not be understood as necessarily provided, therefore the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A hydrochloric acid pool acid mist treatment device, comprising an acid mist absorption tower (1) capable of reactively absorbing acid mist, characterized in that: Connected to the side wall of the acid mist absorption tower (1) are a mixed air supply pipe (2) capable of driving the directional flow of the acid mist by continuously supplying air from the hydrochloric acid pool, and an alkali solution supply pipe (3) for adjustably supplying alkali solution into the acid mist absorption tower (1); The input end of the alkali solution input pipe (3) is connected to an alkali solution supply component (4), and the output end of the alkali solution input pipe (3) inserted into the acid mist absorption tower (1) is connected to a multi-stage spray component (5) capable of spraying alkali solution in layers and at specific locations; The bottom of the acid mist absorption tower (1) is also provided with a waste liquid collection component (6) capable of transferring and storing waste liquid generated by the chemical reaction between the alkali solution and the acid mist.

2. The hydrochloric acid pool acid mist treatment device according to claim 1, characterized in that: The acid mist absorption tower (1) comprises a main tank body (11), a convergent top (12) and a top discharge port (13), wherein: The top of the main tank body (11) is connected to the top discharge port (13) through the convergent top (12). A plurality of groups of corrosion-resistant fillers (111) are vertically spaced apart and arranged below the multi-stage spray assembly (5) in the main tank body (11), and a plurality of inspection windows (112) are provided on the side of the main tank body (11).

3. The hydrochloric acid pool acid mist treatment device according to claim 2, characterized in that: The alkali solution supply assembly (4) comprises an alkali solution mixing tank (41), a liquid storage tank (42), a supply pump (43) and a mixing and stirring unit (44), wherein: The output end of the alkali solution mixing tank (41) is connected to the liquid storage tank (42) through the supply pump (43) capable of directionally sucking the alkali solution in the tank cavity, and the liquid storage tank (42) is connected to the alkali solution input pipe (3); A mixing unit (44) capable of mixing the solution and the medicine added into the tank cavity is inserted on the top of the alkali solution mixing tank (41), and a medicine adding port (411) is also provided on the top surface of the alkali solution mixing tank (41).

4. The hydrochloric acid pool acid mist treatment device according to claim 3, characterized in that: The waste liquid output pipe (61) of the waste liquid collection assembly (6) is detachably connected to the bottom side of the main tank (11). The output end of the waste liquid output pipeline (61) is connected to a waste liquid lifting pump (62), so that the waste liquid in the main tank body (11) is directed to be discharged to the waste liquid temporary storage tank (63) or an external processing device.

5. The hydrochloric acid pool acid mist treatment device according to claim 4, characterized in that: One end of the mixed air delivery pipe (2) inserted into the acid mist absorption tower (1) is connected to an exhaust assembly (7) capable of dispersing and discharging the acid mist diluted and drained by air.

6. The hydrochloric acid pool acid mist treatment device according to claim 5, characterized in that: The exhaust assembly (7) comprises an intake elbow (71), a sealing adapter (72), an air-guiding rotary turbine (73), an exhaust pipe (74) and a diverting exhaust branch pipe (75), wherein: The intake elbow (71) is connected to the output end of the mixed gas transmission pipe (2), and the output end of the intake elbow (71) is connected to the exhaust pipe (74) via the sealing adapter (72); The air-guiding rotating turbine (73) capable of driving the exhaust pipe (74) to rotate is provided in the sealing adapter (72); A plurality of branch exhaust pipes (75) capable of multi-point exhaust are arranged at intervals on the side wall of the exhaust pipe (74) in an annular manner.

7. The hydrochloric acid pool acid mist treatment device according to claim 6, characterized in that: A condenser (712) is spirally wound on the transverse tube body (711) of the air intake elbow (71), and the condenser (712) can form a closed-loop circulation pipeline with an external circulation refrigeration unit (713) to continuously cool the diluted acid mist in the transverse tube body (711).

8. The hydrochloric acid pool acid mist treatment device according to claim 7, characterized in that: The turbine body (731) of the air-guiding rotary turbine (73) is installed in the fixed tube body (721) of the sealing adapter (72), and the turbine blades (732) of the turbine body (731) are connected to the moving tube body (722) of the sealing adapter (72) through a linkage rod (733).

9. The hydrochloric acid pool acid mist treatment device according to claim 8, characterized in that: A plurality of exhaust ports (751) are provided on the pipe body of the diverting exhaust branch pipe (75) at intervals, and the exhaust ports (751) on adjacent diverting exhaust branch pipes (75) are staggered. A double-headed cone (753) is supported above the exhaust port (751) by a counter-positioned support rod (752) connected to the pipe body of the diverting exhaust branch pipe (75).

10. The hydrochloric acid pool acid mist treatment device according to claim 9, characterized in that: The mixed air delivery pipe (2) comprises a main air inlet pipe (21), an air inlet pipe (22), an acid mist inlet pipe (23) and a negative pressure traction pipe (24), wherein: The output end of the main air intake pipe (21) is connected to the air intake elbow (71), and the input end of the main air intake pipe (21) is connected to the air intake pipe (22) and the acid mist intake pipe (23) connected in parallel via the negative pressure traction pipe (24).

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