A hot-dip galvanizing acid mist absorbing device

Abstract

The utility model relates to acid mist absorption technical field, concretely is a kind of hot galvanizing acid mist absorption device, including gas-collecting structure, air extraction structure and processing structure, gas-collecting structure includes gas-collecting hood;Air extraction structure includes venturi, and the upper end of gas-collecting hood is fixedly connected with several venturis, and one end of venturi is interconnected with fan;Processing structure includes spray chamber, and spray chamber is interconnected with the other end of venturi.The utility model in, the negative pressure suction force generated in the expansion position of venturi, the acid mist of gas-collecting hood bottom is sucked, and along with the airflow in venturi together is blown into spray chamber interior and carries out spray work processing work, effectively avoids acid mist and fan contact, guarantees the effect of acid mist extraction, conveying, avoids the influence of acid mist to fan and other equipment, completely avoids the contact with high concentration, high humidity acid mist, service life is greatly extended, and operation reliability is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of acid mist absorption technology, specifically a hot-dip galvanized acid mist absorption device. Background Technology

[0002] In the hot-dip galvanizing and metal surface treatment industry, the pickling process generates a large amount of highly corrosive acid mist such as hydrochloric acid and sulfuric acid. This acid mist not only seriously pollutes the workshop and surrounding environment and endangers the health of operators, but also corrodes the factory structure and production equipment. Therefore, efficient and reliable acid mist absorption and treatment devices are indispensable environmental protection equipment in this field.

[0003] Currently, common acid mist treatment methods often involve collecting the gas with a gas collection hood, then directly extracting it with a corrosion-resistant fan and sending it to a packed tower or spray tower for neutralization and purification. However, in this method, the fan impeller and casing are in direct contact with high concentrations and high humidity corrosive gases for a long time, which makes them prone to rust and damage, resulting in high equipment failure rates, frequent maintenance, and a significant increase in operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a hot-dip galvanizing acid mist absorption device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A hot-dip galvanizing acid mist absorption device, comprising: Gas collection structure, including gas collection hood; The air extraction structure includes a venturi tube. Several venturi tubes are fixedly connected to the upper end of the air collection hood, and one end of the venturi tube is connected to the fan. The treatment structure includes a spray chamber, which is connected to the other end of a venturi tube.

[0006] Furthermore, a pipe mounting base is fixedly installed on the upper side of the gas collection hood, and several exhaust pipes are fixedly connected to the upper end of the pipe mounting base.

[0007] Furthermore, the Venturi tube has an air inlet at one end and an air outlet at the other end, and an exhaust gas interface at the bottom, which is connected to the upper end of the exhaust gas pipe.

[0008] Furthermore, several venturi tubes are fixedly connected to multi-port pipes at both ends, the air inlet is connected to the fan interface through the multi-port pipe, and each air outlet is connected to the exhaust gas pipe through the multi-port pipe.

[0009] Furthermore, the exhaust gas connection is fixedly installed on one side of the spray chamber, and a spray pipe is fixedly installed on the top of the spray chamber, with an external water pipe interface fixedly connected to the upper end of the spray pipe.

[0010] Furthermore, a drainage hopper is fixedly installed at the bottom of the spray chamber, and a drainage pipe is fixedly installed at the lower end of the drainage hopper.

[0011] Furthermore, a filler slot is provided between the spray chamber and the drainage hopper, a filler placement frame is installed in the filler slot, a sealing plate is fixedly installed on the outside of the filler placement frame, and the inside of the sealing plate is filled with treatment filler.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. Utilizing the negative pressure suction generated at the expansion position of the Venturi tube, the acid mist at the bottom of the gas collection hood is drawn in and blown into the spray chamber along with the airflow inside the Venturi tube for spray treatment. This effectively avoids contact between the acid mist and the fan, ensuring the effectiveness of acid mist extraction and transportation while preventing the acid mist from affecting the fan and other equipment. It completely avoids contact with high-concentration, high-humidity acid mist, significantly extending the service life and greatly improving operational reliability.

[0013] 2. The system is connected to the fan via the fan interface and uses a multi-port pipe to distribute the airflow into multiple Venturi tubes, ensuring the suction power of the acid mist. At the same time, the high-speed airflow in the Venturi tubes vigorously mixes and dilutes the acid mist and air, and improves the contact effect between the subsequent spray water and acid mist ions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the gas collecting structure in this utility model; Figure 3 This is a schematic diagram of the air extraction structure in this utility model; Figure 4 This is a schematic diagram of the Chinese-language tube of this utility model; Figure 5 This is a schematic diagram of the processing structure in this utility model.

[0015] In the diagram: 1. Gas collection structure; 101. Gas collection hood; 102. Pipe mounting base; 103. Exhaust gas pipe; 2. Exhaust structure; 201. Venturi tube; 202. Air inlet; 203. Air outlet; 204. Exhaust gas interface; 205. Multi-port pipe; 206. Fan interface; 3. Treatment structure; 301. Exhaust gas connection pipe; 302. Spray chamber; 303. Spray pipeline; 304. Water pipe external interface; 305. Drainage hopper; 306. Drainage pipe; 307. Packing slot; 308. Packing placement frame; 309. Sealing plate; 310. Treatment packing. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-5 In this embodiment of the present invention, a hot-dip galvanizing acid mist absorption device includes a gas collection structure 1, a gas extraction structure 2, and a treatment structure 3. The gas collection structure 1 includes a gas collection hood 101; the gas extraction structure 2 includes a venturi tube 201, and a plurality of venturi tubes 201 are fixedly connected to the upper end of the gas collection hood 101, with one end of the venturi tube 201 connected to a fan; the treatment structure 3 includes a spray chamber 302, and the spray chamber 302 is connected to the other end of the venturi tube 201.

[0018] Specifically, a gas collection hood 101 is installed above the pickling tank, and multiple Venturi tubes 201 are connected in parallel at the upper end of the gas collection hood 101. An airflow is generated by a fan and injected into the Venturi tubes 201. Then, the negative pressure suction generated by the expansion position of the Venturi tubes 201 is used to draw the acid mist at the bottom of the gas collection hood 101 and blow it into the spray chamber 302 along with the airflow in the Venturi tubes 201 for spraying treatment. This effectively avoids contact between the acid mist and the fan, ensuring the effectiveness of acid mist extraction and transportation while preventing the acid mist from affecting the fan and other equipment.

[0019] Example 1 like Figure 1 , 5 As shown, in this embodiment, the exhaust gas inlet pipe 301 is fixedly installed on one side of the spray chamber 302, the top of the spray chamber 302 is fixedly installed with a spray pipe 303, and the upper end of the spray pipe 303 is fixedly connected with a water pipe external interface 304; the bottom of the spray chamber 302 is fixedly installed with a drain hopper 305, and the lower end of the drain hopper 305 is fixedly installed with a drain pipe 306; a filler slot 307 is provided between the spray chamber 302 and the drain hopper 305, a filler placement frame 308 is fitted in the filler slot 307, a sealing plate 309 is fixedly installed on the outside of the filler placement frame 308, and the sealing plate 309 is filled with treatment filler 310.

[0020] In this embodiment, a water supply structure is connected to the spray pipe 303 to spray a water curtain on the top of the spray chamber 302. The water is mixed with acid mist and, driven by the impact of airflow and water flow, passes through the treatment packing 310 for preliminary treatment. Then, it is discharged into the waste liquid pool through the drain hopper 305 and the drain pipe 306 for subsequent treatment. At the same time, the treatment packing 310 is integrated into the packing placement frame 308, and the packing placement frame 308 is designed as a replaceable structure to facilitate the replacement of the treatment packing 310.

[0021] Example 2 Based on Example 1, in order to supplement the specific method of extracting acid mist below the gas collection hood 101 through the venturi tube 201, which was not mentioned in Example 1.

[0022] like Figure 1-5 As shown, in this embodiment, a pipe mounting base 102 is fixedly installed on the upper side of the gas collection hood 101, and several exhaust pipes 103 are fixedly connected to the upper end of the pipe mounting base 102; one end of the venturi tube 201 is provided with an air inlet 202, the other end of the venturi tube 201 is provided with an air outlet 203, and the bottom of the venturi tube 201 is provided with an exhaust gas interface 204, which is connected to the upper end of the exhaust pipe 103; both ends of several venturi tubes 201 are fixedly connected to multi-port pipes 205, the air inlets 202 are connected to the fan interface 206 through the multi-port pipes 205, and each air outlet 203 is connected to the exhaust gas connection pipe 301 through the multi-port pipes 205.

[0023] In practice, the fan interface 206 is connected to the fan, and the airflow is divided into multiple venturi tubes 201 by the multi-port pipe 205 to ensure the suction power of acid mist. At the same time, the high-speed airflow in the venturi tubes 201 is used to vigorously mix and dilute the acid mist and air, and improve the contact effect between the subsequent spray water and acid mist ions.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hot-dip galvanizing acid mist absorption device, characterized in that, include: The gas collection structure (1) includes a gas collection hood (101). The air extraction structure (2) includes a Venturi tube (201). Several Venturi tubes (201) are fixedly connected to the upper end of the air collection hood (101). One end of the Venturi tube (201) is connected to the fan. The processing structure (3) includes a spray chamber (302) which is connected to the other end of a venturi tube (201).

2. The hot-dip galvanizing acid mist absorption device according to claim 1, characterized in that, The gas collection hood (101) is fixedly installed with a pipe mounting seat (102) on the upper side, and a number of exhaust pipes (103) are fixedly connected to the upper end of the pipe mounting seat (102).

3. The hot-dip galvanizing acid mist absorption device according to claim 2, characterized in that, The Venturi tube (201) has an air inlet (202) at one end and an air outlet (203) at the other end. The Venturi tube (201) has an exhaust gas interface (204) at the bottom and is connected to the upper end of the exhaust gas pipe (103).

4. The hot-dip galvanizing acid mist absorption device according to claim 3, characterized in that, Several Venturi tubes (201) are fixedly connected to multi-port pipes (205) at both ends. The air inlet (202) is connected to the fan interface (206) through the multi-port pipe (205). Each of the air outlets (203) is connected to the exhaust gas pipe (301) through the multi-port pipe (205).

5. The hot-dip galvanizing acid mist absorption device according to claim 4, characterized in that, The exhaust gas inlet (301) is fixedly installed on one side of the spray chamber (302), and a spray pipe (303) is fixedly installed on the top of the spray chamber (302). A water pipe external interface (304) is fixedly connected to the upper end of the spray pipe (303).

6. The hot-dip galvanizing acid mist absorption device according to claim 5, characterized in that, A drainage hopper (305) is fixedly installed at the bottom of the spray chamber (302), and a drainage pipe (306) is fixedly installed at the lower end of the drainage hopper (305).

7. The hot-dip galvanizing acid mist absorption device according to claim 6, characterized in that, A filler slot (307) is provided between the spray chamber (302) and the drainage hopper (305). A filler placement frame (308) is installed in the filler slot (307). A sealing plate (309) is fixedly installed on the outside of the filler placement frame (308). The sealing plate (309) is filled with treatment filler (310).

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