Acid mist absorption treatment device for hot galvanizing processing

Abstract

The utility model provides an acid mist absorption treatment device for hot galvanizing processing, which comprises a box body, a liquid inlet pipe, a liquid outlet pipe, a speed reducing motor and a driving cylinder, the liquid inlet pipe is arranged at the top of the box body, the liquid outlet pipe is arranged on the side wall of the box body, the speed reducing motor is fixedly connected to the bottom of the box body, and the driving cylinder is arranged in the box body. And the driving end of the gear motor is fixedly connected with a driving rod. According to the utility model, three-dimensional dynamic mixing is realized through the composite driving mechanism, rotary stirring and vertical disturbance are synchronously completed, the gas-liquid mass transfer efficiency is remarkably improved, and sufficient and uniform acid-base neutralization reaction is ensured. The foam breaking and wall self-cleaning functions are integrated, foam accumulation generated in the reaction process is effectively eliminated, impurities attached to the inner wall of the box body are automatically removed in the liquid discharging stage, and the manual maintenance requirement is reduced. The unique net plate lifting design breaks through a traditional static reaction mode, a solution at the bottom of the box is stirred periodically, sediment deposition and hardening are prevented, and the stability of a reaction system is maintained.

Description

Technical Field

[0001] This utility model relates to the field of tea processing technology, specifically to an acid mist absorption and treatment device for hot-dip galvanizing. Background Technology

[0002] During the hot-dip galvanizing process, the highly corrosive acid mist generated by the pickling process can cause serious damage to the environment and equipment. Traditional acid mist treatment devices mostly use spray towers or fixed bed absorption processes, which have the following technical defects:

[0003] Insufficient mixing efficiency: Conventional stirring mechanisms are mostly single-rotation modes, lacking vertical disturbance, which leads to limited gas-liquid contact area. Especially when dealing with high-concentration acid mist, reaction dead zones are prone to occur, and the neutralization efficiency is significantly reduced.

[0004] Lack of foam and impurity control: Foam generated during the reaction process is prone to accumulate and block pipelines, and traditional mechanical defoaming devices cannot simultaneously process impurities adhering to the walls, requiring frequent shutdowns for manual cleaning, which affects continuous production capacity;

[0005] Sediment accumulation problem: Unreacted solid particles are easily deposited at the bottom of static reaction tanks, forming hard scale after long-term operation, which not only reduces the effective volume, but also increases the risk of equipment corrosion.

[0006] Poor maintenance adaptability: Fixed transmission structures are difficult to replace after component wear, and the stirring intensity cannot be dynamically adjusted according to the acid mist concentration, resulting in an imbalance between energy consumption and treatment effect;

[0007] Low level of automation: Existing equipment relies heavily on manual monitoring of pH value and adjustment of operating parameters, resulting in slow response and poor operational consistency, making it difficult to meet the intelligent control requirements of modern production. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing an acid mist absorption and treatment device for hot-dip galvanizing.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: an acid mist absorption and treatment device for hot-dip galvanizing, comprising a housing, an inlet pipe, an outlet pipe, a geared motor, and a drive cylinder. The inlet pipe is located at the top of the housing, and the outlet pipe is located on the side wall of the housing. The geared motor is fixedly connected to the bottom of the housing, and a drive rod is fixedly connected to the drive end of the geared motor. A movable sleeve is fitted on the outer surface of the drive rod, and a stirring rod is fixedly connected to the top of the movable sleeve. Multiple stirring blades are fixedly connected to both sides of the stirring rod at equal intervals. Two pH meters are fixedly connected to the inner bottom wall of the housing, and the two pH meters are located on both sides of the drive rod. A connecting plate is connected through the stirring rod, and a cleaning ring is fixedly connected to the outer surface of the connecting plate. The drive cylinder penetrates the top of the housing, and a movable plate is fixedly connected to the movable end of the drive cylinder. The top of the stirring rod penetrates the movable plate, and two fixing rings are fixedly connected to the outer surface of the top of the stirring rod, with the two fixing rings contacting the upper and lower surfaces of the movable plate, respectively.

[0010] Preferably, the connecting plate is located above the stirring blade, and the cleaning ring is movably engaged inside the housing.

[0011] Preferably, the outer surface of the movable sleeve is provided with threads, and a push plate is threadedly connected to the outer surface of the movable sleeve, the push plate being movably engaged inside the housing.

[0012] Preferably, a support ring is fixedly connected to the outer surface of the stirring rod, and the bottom of the connecting plate is in contact with the support ring.

[0013] This utility model has the following beneficial effects:

[0014] 1. Three-dimensional dynamic mixing is achieved through a composite drive mechanism, which simultaneously completes rotary stirring and vertical disturbance, significantly improving gas-liquid mass transfer efficiency and ensuring that acid-base neutralization reaction is fully and uniform;

[0015] 2. It integrates foam breaking and self-cleaning functions, effectively eliminating foam accumulation generated during the reaction process, and automatically removing impurities adhering to the inner wall of the tank during the drainage stage, reducing the need for manual maintenance;

[0016] 3. The unique screen plate lifting design breaks the traditional static reaction mode, periodically agitating the solution at the bottom of the tank to prevent precipitates from settling and caking, and maintaining the stability of the reaction system;

[0017] 4. The modular transmission structure design balances motion accuracy and maintainability, making it easy to adjust the stirring parameters according to the processing capacity and improving the applicability of the equipment;

[0018] 5. The flexible scraping component ensures effective cleaning while avoiding wear on the inner wall of the box, thus extending the service life of key components;

[0019] 6. Intelligent monitoring and actuator linkage enables fully automated operation from reaction control to equipment cleaning, significantly improving processing efficiency and operational safety. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the present invention.

[0021] The components are as follows: 1. Box body; 2. Inlet pipe; 3. Outlet pipe; 4. Gear motor; 5. Drive rod; 6. Movable sleeve; 7. Stirring rod; 8. Stirring blade; 9. Pushing screen plate; 10. pH meter; 11. Connecting plate; 12. Cleaning ring; 13. Drive cylinder; 14. Movable plate; 15. Fixed ring. Detailed Implementation

[0022] 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. Example

[0023] like Figure 1 As shown, this utility model embodiment provides an acid mist absorption treatment device for hot-dip galvanizing, including a housing 1, an inlet pipe 2, an outlet pipe 3, a geared motor 4, and a drive cylinder 13. The inlet pipe 2 is located at the top of the housing 1, and the outlet pipe 3 is located on the side wall of the housing 1. The geared motor 4 is fixedly connected to the bottom of the housing 1. A drive rod 5 is fixedly connected to the drive end of the geared motor 4. A movable sleeve 6 is sleeved on the outer surface of the drive rod 5. A stirring rod 7 is fixedly connected to the top of the movable sleeve 6. Multiple stirring blades are fixedly connected at equal intervals to both sides of the stirring rod 7. 8. Two pH meters 10 are fixedly connected to the inner bottom wall of the box body 1. The two pH meters 10 are located on both sides of the drive rod 5. The stirring rod 7 is connected through a connecting plate 11. A cleaning ring 12 is fixedly connected to the outer surface of the connecting plate 11. The drive cylinder 13 is connected through the top of the box body 1. A movable plate 14 is fixedly connected to the movable end of the drive cylinder 13. The top end of the stirring rod 7 is connected through the movable plate 14. Two fixing rings 15 are fixedly connected to the outer surface of the top end of the stirring rod 7. The two fixing rings 15 are in contact with the upper and lower surfaces of the movable plate 14, respectively.

[0024] The connecting plate 11 is located above the stirring blade 8, and the cleaning ring 12 is movably engaged inside the housing 1, allowing the connecting plate 11 to remove the foam generated by the stirring blade 8 in the solution. The outer surface of the movable sleeve 6 is threaded, and a pushing screen plate 9 is threadedly connected to the outer surface of the movable sleeve 6. The pushing screen plate 9 is movably engaged inside the housing 1, and the pushing screen plate 9 can be limited by the inner wall of the housing 1, so that when the movable sleeve 6 rotates, it can drive the pushing screen plate 9 to move up and down, thereby allowing the pushing screen plate 9 to push the solution on the bottom wall of the housing 1 to other areas, promoting uniform mixing of the solution in the housing 1, which is convenient for the pH meter 10 to detect the pH of the solution in the housing 1. A support ring is fixedly connected to the outer surface of the stirring rod 7, and the bottom of the connecting plate 11 contacts the support ring, so that the stirring rod 7 can drive the connecting plate 11 to move up and down.

[0025] Working Principle: When using the acid mist absorption treatment device for hot-dip galvanizing, the acid mist to be treated is first introduced into the chamber 1 through the inlet pipe 2, allowing the acid mist to mix and contact with the pre-injected alkaline solution in the chamber 1. A pH meter 10, installed on the bottom wall of the chamber 1, monitors the solution pH value in real time, providing data support for process control. The geared motor 4 drives the movable sleeve 6 to rotate via the drive rod 5. This rotational motion is transmitted to the stirring rod 7, causing the stirring blades 8 on its periphery to perform three-dimensional stirring of the solution in the chamber. The movable sleeve 6 and the pushing mesh plate 9 form a spiral pair structure. Under the constraint of the guide groove on the inner wall of the chamber 1, the rotation of the movable sleeve 6 is converted into the vertical reciprocating motion of the pushing mesh plate 9, effectively agitating the solution deposited at the bottom of the chamber and enhancing gas-liquid mass transfer efficiency. During the stirring process, the connecting plate 11 connected to the top of the stirring rod 7 rotates accordingly; its special configuration effectively breaks up surface foam. The drive cylinder 13, through the linkage between the movable plate 14 and the fixed ring 15, can drive the stirring rod 7 to make vertical displacement adjustment, enabling the stirring blade 8 to perform stirring operations at different liquid levels. Combined with the lifting and lowering motion of the screen plate 9, a three-dimensional mixing flow field is formed, significantly improving the uniformity of the neutralization reaction. When the neutralization reaction reaches the set endpoint, the treated solution is discharged through the outlet pipe 3. During this process, light impurities adhering to the inner wall of the tank 1 form an adhesive layer under the action of liquid surface tension. At this time, the drive cylinder 13 drives the stirring rod 7 to perform vertical reciprocating motion, causing the cleaning ring 12 to scrape along the tank wall. The elastic material design of the cleaning ring 12 allows it to effectively peel off the adhering impurities without damaging the inner surface of the tank 1, and with the subsequent rinsing process, the tank 1 can achieve self-cleaning. This device, through the coordinated control of the geared motor 4 and the drive cylinder 13, realizes the combined effect of the three-dimensional motion of the stirring blade 8 and the vertical motion of the screen plate 9, constructing a multi-mode mixing system including forced convection, shear mixing, and zone displacement. The core innovations of this device in achieving dynamic adjustment are the spiral transmission structure of the movable sleeve 6 and the pushing mesh plate 9, and the linkage mechanism between the driving cylinder 13 and the fixed ring 15. The combined design of the cleaning ring 12 and the connecting plate 11 effectively solves the problems of foam accumulation and vessel wall contamination in traditional devices while ensuring reaction efficiency, significantly improving the stability and continuity of equipment operation.

[0026] 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. An acid mist absorption treatment device for hot galvanizing processing, comprising a box body (1), a liquid inlet pipe (2), a liquid outlet pipe (3), a speed reduction motor (4) and a driving cylinder (13), characterized in that: The inlet pipe (2) is located at the top of the box (1), the outlet pipe (3) is located on the side wall of the box (1), the geared motor (4) is fixedly connected to the bottom of the box (1), the drive end of the geared motor (4) is fixedly connected to a drive rod (5), the outer surface of the drive rod (5) is fitted with a movable sleeve (6), the top of the movable sleeve (6) is fixedly connected to a stirring rod (7), and multiple stirring blades (8) are fixedly connected at equal intervals on both sides of the stirring rod (7). Two pH meters (10) are fixedly connected to the inner bottom wall of the box (1). The alkalinity detector (10) is located on both sides of the drive rod (5). The stirring rod (7) is connected through a connecting plate (11). A cleaning ring (12) is fixedly connected to the outer surface of the connecting plate (11). The drive cylinder (13) passes through the top of the housing (1). A movable plate (14) is fixedly connected to the movable end of the drive cylinder (13). The top of the stirring rod (7) passes through the movable plate (14). Two fixing rings (15) are fixedly connected to the outer surface of the top of the stirring rod (7). The two fixing rings (15) are in contact with the upper and lower surfaces of the movable plate (14) respectively.

2. The acid mist absorbing treatment device for hot galvanizing processing according to claim 1, characterized by: The connecting plate (11) is located above the stirring blade (8), and the cleaning ring (12) is movably engaged inside the housing (1).

3. The acid mist absorbing apparatus for hot galvanizing process according to claim 1 or 2, characterized by: The outer surface of the movable sleeve (6) is provided with threads, and the outer surface of the movable sleeve (6) is threadedly connected to a push plate (9), which is movably engaged inside the housing (1).

4. The acid mist absorbing apparatus for hot galvanizing process according to claim 1, characterized by: A support ring is fixedly connected to the outer surface of the stirring rod (7), and the bottom of the connecting plate (11) is in contact with the support ring.

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