Hot galvanizing pickling tank

Abstract

The invention belongs to the technical field of hot galvanizing processes, particularly relates to a hot galvanizing pickling tank, and aims to solve the problems of serious acid mist pollution, non-uniform acid supplementation and lagging acidity monitoring in the background technology. The hot galvanizing pickling tank comprises a pickling tank main body, a first side plate is arranged on one side of the outer wall of the top of the pickling tank main body, and a second side plate is arranged on the other side of the outer wall of the top of the pickling tank main body; a first side plate is arranged on the outer wall of the top of the pickling tank body, a second side plate is arranged on one side of the outer wall of the top of the pickling tank body, an acid mist recycling mechanism is arranged on the outer wall of the first side plate, an acid supplementing mechanism is arranged on the outer wall of the second side plate, and the acid mist recycling mechanism and the acid supplementing mechanism are located on the two sides of the pickling tank body respectively. Through linkage of the negative pressure fan and the gas-liquid separator, after acid mist is sucked by the smoke suction hopper, gas-liquid separation is achieved in the barrel through the honeycomb liquid dropping plate and the air filter element, acid liquid returns to the pickling tank through the backflow pipe, waste gas is purified and discharged through the gas outlet pipe, the recovery rate is greatly increased, acid consumption and environmental pollution are reduced, and the energy consumption is reduced. The method has the characteristics of efficient acid mist recovery and resource circulation.

Description

Technical Field

[0001] The present invention relates to the technical field of hot-dip galvanizing processes, and particularly to a hot-dip galvanizing pickling tank. Background Art

[0002] A hot-dip galvanizing pickling tank is a container used to hold an aqueous solution and remove the thin film on the metal surface during the pickling process of workpieces. The pickling tank is an indispensable part of the hot-dip galvanizing processing. It is mainly used to remove oxides and other impurities on the metal surface to prepare for the subsequent hot-dip galvanizing process. In the hot-dip galvanizing process, the pickling tank is a key device for removing the oxide layer and impurities on the metal surface. The existing pickling tanks generally have the following problems: 1. Severe acid mist pollution: The acid mist (such as HCl, H2SO4 vapor) generated during the pickling process escapes into the environment, not only corroding the equipment but also posing a threat to the health of operators. The traditional acid mist recovery device has low efficiency, the filter element is easily blocked, and there is a lack of an acid liquid reflux mechanism after gas-liquid separation, resulting in waste of resources.

[0003] 2. Uneven acid replenishment: Traditional acid replenishment mostly adopts manual or fixed spraying methods, and it is impossible to adjust the acid replenishment amount and position in real time according to the acid liquid concentration in the tank, resulting in too high or insufficient local acidity and affecting the pickling quality.

[0004] 3. Lag in acid monitoring: Most of the existing monitoring devices adopt off-line sampling and cannot provide real-time feedback on the change of acid liquid concentration, resulting in untimely or excessive acid replenishment, increasing costs and affecting the process stability.

[0005] In view of the above problems, the present invention proposes a hot-dip galvanizing pickling tank integrating acid mist recovery, intelligent acid replenishment, real-time monitoring and high corrosion resistance structure, aiming to improve environmental protection, operation efficiency and equipment life. Summary of the Invention

[0006] In view of the deficiencies of the prior art, the present invention provides a hot-dip galvanizing pickling tank, which overcomes the deficiencies of the prior art and effectively solves the problems of severe acid mist pollution, uneven acid replenishment and lag in acid monitoring.

[0007] To achieve the above object, the present invention adopts the following technical solutions: A hot-dip galvanizing pickling tank includes a pickling tank main body. On one side of the outer wall of the top of the pickling tank main body, a first side plate is provided, and on one side of the outer wall of the top of the pickling tank main body, a second side plate is provided. An acid mist recovery mechanism is provided on the outer wall of the first side plate, and an acid replenishment mechanism is provided on the outer wall of the second side plate. Among them, the acid mist recovery mechanism and the acid replenishment mechanism are respectively located on both sides of the pickling tank main body. An acid monitoring component is provided on the outer wall of the other side of the pickling tank main body; The acid mist recovery mechanism includes smoking pipes, inlet pipes, negative pressure fans, inlet gas pipes, gas-liquid separators, and return pipes. Among them, the symmetrically distributed smoking pipes are welded to the inner wall of the first side plate. The inlet pipe is fixedly connected to the outer wall of one end of the smoking pipe. The negative pressure fan is installed on the outer wall of one end of the inlet pipe. The inlet gas pipe is fixedly connected to the exhaust port of the negative pressure fan. The gas-liquid separator is installed on the outer wall of one end of the inlet gas pipe. The return pipe is fixedly connected between the main body of the pickling tank and the gas-liquid separator.

[0008] Preferably, the main body of the pickling tank includes an acid-resistant ceramic pool and a fiberglass outer layer. Among them, the fiberglass outer layer is installed outside the acid-resistant ceramic pool, and adjacent pickling pools are arranged inside the acid-resistant ceramic pool.

[0009] Preferably, a sewage discharge pipe is installed at the bottom of the outer wall of one side of the main body of the pickling tank, and a valve is installed on the outer wall of the sewage discharge pipe. The two sewage discharge pipes are respectively communicated with the inner walls of the two pickling pools.

[0010] Preferably, the gas-liquid separator includes a cylinder body, a liquid collection bottle, an air outlet pipe, and a filter element. Among them, the cylinder body is fixedly connected to the outer wall of one end of the inlet gas pipe, and the outer wall of the cylinder body is welded to the outer wall of the first side plate through a bracket. The liquid collection bottle is arranged on the outer wall of the bottom of the cylinder body. The air outlet pipe is fixedly connected to the inner wall of the top of the cylinder body. The filter element is installed inside the cylinder body, and the height of the filter element is higher than the height of the inlet gas pipe.

[0011] Preferably, the acid replenishment mechanism includes a protective plate frame, a connecting rod, an electric guide rail, an acid spraying pipe, a first gear, a second gear, a servo motor, an acid inlet pipe, and a pulley pair. Among them, the protective plate frame is arranged on the top of the main body of the pickling tank. There are two connecting rods, which are respectively welded to the outer walls on both sides of the protective plate frame. The electric guide rail is fixedly connected to the outer wall of the second side plate through screws. One end of one of the connecting rods is fixedly connected to the slider of the electric guide rail. The symmetrically distributed acid spraying pipes are all rotatably connected to the inner wall of the bottom of the protective plate frame through bearings. The first gear is installed on the outer wall of one of the acid spraying pipes. The second gear meshes with the outer wall of the first gear. The output shaft of the servo motor is fixedly connected to the inner wall of the second gear, and the servo motor is fixedly connected to the outer wall of the bottom of the protective plate frame through screws. The acid inlet pipe is rotatably connected to the outer walls of the tops of the two acid spraying pipes through bearings. The pulley pair is installed between the two acid spraying pipes.

[0012] Preferably, the acid monitoring component includes a vertical pipe, a liquid inlet pipe, a liquid outlet pipe, and an acidity sensor. Among them, the vertical pipe is arranged on the other side of the main body of the pickling tank. The liquid inlet pipe and the liquid outlet pipe are both fixedly connected between the vertical pipe and the main body of the pickling tank, and the height of the liquid inlet pipe is higher than the height of the liquid outlet pipe. The acidity sensor is installed on the outer wall of the top of the vertical pipe, and the probe of the acidity sensor is arranged inside the vertical pipe.

[0013] Preferably, the filter element includes an air filter element and a honeycomb drip plate, wherein the air filter element is arranged on the inner wall of the cylinder body, and the honeycomb drip plate is arranged at the bottom of the air filter element.

[0014] Preferably, the other side of the pickling tank body is fixedly connected with a long guide rod, and one end outer wall of the other connecting rod is slidably connected to the outer wall of the long guide rod.

[0015] Preferably, first solenoid valves are installed at both ends of the outer wall of the acid inlet pipe close to the two acid spraying pipes.

[0016] Preferably, a second solenoid valve is installed on the outer wall of the return pipe close to one end of the return pipe.

[0017] The beneficial effects of the present invention are as follows: 1. For the hot-dip galvanizing pickling tank of the present invention, through the linkage of the negative pressure fan and the gas-liquid separator, after the acid mist is inhaled through the smoke suction pipe, gas-liquid separation is realized in the cylinder body through the honeycomb drip plate and the air filter element, the acid liquid returns to the pickling tank through the return pipe, and the waste gas is purified and discharged through the air outlet pipe, greatly improving the recovery rate, reducing acid consumption and environmental pollution, and having the characteristics of efficient acid mist recovery and resource recycling; 2. For the hot-dip galvanizing pickling tank of the present invention, the acid replenishment mechanism drives the gear set and the pulley pair through the servo motor, so that the acid spraying pipe moves along the electric guide rail, and combines with the first solenoid valve to control the flow rate, realizing multi-angle and uniform acid spraying, ensuring the consistency of the acid liquid concentration in the tank, and having the function of precise and intelligent acid replenishment; 3. For the hot-dip galvanizing pickling tank of the present invention, the acid monitoring part circulates the acid liquid in the tank through the vertical pipe, the acidity sensor detects the pH value in real time and transmits it to the control system, triggering acid replenishment or alarm, avoiding the delay of manual intervention, and being able to monitor and feedback the acidity in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of a hot-dip galvanizing pickling tank proposed by the present invention Figure 1 ; Figure 2 is a schematic diagram of the overall structure of a hot-dip galvanizing pickling tank proposed by the present invention Figure 2 ; Figure 3 is a schematic diagram of the overall structure of a hot-dip galvanizing pickling tank proposed by the present invention Figure 3 ; Figure 4 is a schematic diagram of the structure of the pickling tank body of a hot-dip galvanizing pickling tank proposed by the present invention; Figure 5 is a schematic diagram of the acid mist recovery mechanism of a hot-dip galvanizing pickling tank proposed by the present invention Figure 1 ; Figure 6 is a schematic diagram of the structure of the gas-liquid separator of a hot-dip galvanizing pickling tank proposed by the present inventionFigure 2 ; Figure 7 Schematic structural diagram of a gas-liquid separator for a hot-dip galvanizing pickling tank proposed by the present invention; Figure 8 Schematic structural diagram of a filter element for a hot-dip galvanizing pickling tank proposed by the present invention; Figure 9 Schematic diagram of an acid replenishment mechanism for a hot-dip galvanizing pickling tank proposed by the present invention Figure 1 ; Figure 10 Schematic diagram of an acid replenishment mechanism for a hot-dip galvanizing pickling tank proposed by the present invention Figure 2 ; Figure 11 Schematic structural diagram of an acid monitoring component for a hot-dip galvanizing pickling tank proposed by the present invention.

[0019] In the figure: 1, pickling tank main body; 2, first side plate; 3, second side plate; 4, acid mist recovery mechanism; 41, smoke suction pipe; 42, smoke inlet pipe; 43, negative pressure fan; 44, smoke inlet pipe; 45, gas-liquid separator; 451, cylinder body; 452, liquid collection bottle; 453, gas outlet pipe; 454, filter element; 46, return pipe; 5, acid replenishment mechanism; 51, protective plate frame; 52, connecting rod; 53, electric guide rail; 54, acid spraying pipe; 55, first gear; 56, second gear; 57, servo motor; 58, acid inlet pipe; 59, pulley pair; 6, acid monitoring component; 61, vertical pipe; 62, liquid inlet pipe; 63, liquid outlet pipe; 64, acidity sensor; 7, air filter element; 8, honeycomb drip plate; 9, long guide rod; 10, first solenoid valve; 11, second solenoid valve; 12, acid-resistant ceramic pool; 13, fiberglass outer layer; 14, sewage discharge pipe; 15, valve. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Referring to Figures 1 - 4 , a hot-dip galvanizing pickling tank includes a pickling tank main body 1. One side of the outer wall of the top of the pickling tank main body 1 is provided with a first side plate 2, and one side of the outer wall of the top of the pickling tank main body 1 is provided with a second side plate 3. An acid mist recovery mechanism 4 is provided on the outer wall of the first side plate 2, and an acid replenishment mechanism 5 is provided on the outer wall of the second side plate 3. Among them, the acid mist recovery mechanism 4 and the acid replenishment mechanism 5 are respectively located on both sides of the pickling tank main body 1, and an acid monitoring component 6 is provided on the outer wall of the other side of the pickling tank main body 1.

[0022] Example 1, referring to Figures 5 - 6, A hot-dip galvanizing pickling tank, wherein the acid mist recovery mechanism 4 includes a smoke suction funnel 41, a smoke inlet pipe 42, a negative pressure fan 43, a smoke inlet pipe 44, a gas-liquid separator 45, and a return pipe 46. Among them, the symmetrically distributed smoke suction funnels 41 are welded to the inner wall of the first side plate 2, the smoke inlet pipe 42 is fixedly connected to the outer wall of one end of the smoke suction funnel 41, the negative pressure fan 43 is installed on the outer wall of one end of the smoke inlet pipe 42, the smoke inlet pipe 44 is fixedly connected to the exhaust port of the negative pressure fan 43, the gas-liquid separator 45 is installed on the outer wall of one end of the smoke inlet pipe 44, and the return pipe 46 is fixedly connected between the pickling tank main body 1 and the gas-liquid separator 45.

[0023] Smoke suction funnel 41: Symmetrically welded to the inner wall of the first side plate 2, with a flared opening design to expand the acid mist capture range.

[0024] Negative pressure fan 43: Draws the acid mist into the smoke inlet pipe 44 through the smoke inlet pipe 42.

[0025] Gas-liquid separator 45: An inclined honeycomb drip plate 8 is installed in the cylinder body 451. The acid mist impinges on the plate surface and condenses into liquid droplets, which flow into the liquid collection bottle 452. The air filter element 7 is made of PTFE material to filter residual acid mist particles. The purified gas is discharged to the waste gas treatment system through the air outlet pipe 453. The return pipe 46 is controlled by the second solenoid valve 11 to periodically return the acid liquid in the liquid collection bottle 452 to the pickling tank.

[0026] In this embodiment, through the linkage of the negative pressure fan 43 and the gas-liquid separator 45, after the acid mist is inhaled through the smoke suction funnel 41, gas-liquid separation is achieved in the cylinder body 451 through the honeycomb drip plate 8 and the air filter element 7. The acid liquid returns to the pickling tank through the return pipe 46, and the waste gas is purified and discharged through the air outlet pipe 453, greatly improving the recovery rate, reducing acid consumption and environmental pollution, and having the characteristics of efficient acid mist recovery and resource recycling.

[0027] Example 2, refer to Figures 9 - 10, a hot-dip galvanizing pickling tank, the acid replenishment mechanism 5 includes a protective plate frame 51, a connecting rod 52, an electric guide rail 53, a spraying acid pipe 54, a first gear 55, a second gear 56, a servo motor 57, an acid inlet pipe 58 and a pulley pair 59. Among them, the protective plate frame 51 is arranged on the top of the pickling tank main body 1, there are two connecting rods 52 which are respectively welded on the outer walls on both sides of the protective plate frame 51, the electric guide rail 53 is fixedly connected to the outer wall of the second side plate 3 by screws, and one end of the outer wall of one of the connecting rods 52 is fixedly connected to the slider of the electric guide rail 53. The symmetrically distributed spraying acid pipes 54 are all rotatably connected to the inner wall of the bottom of the protective plate frame 51 through bearings. The first gear 55 is installed on the outer wall of one of the spraying acid pipes 54, the second gear 56 meshes with the outer wall of the first gear 55, the output shaft of the servo motor 57 is fixedly connected to the inner wall of the second gear 56, and the servo motor 57 is fixedly connected to the outer wall of the bottom of the protective plate frame 51 by screws. The acid inlet pipe 58 is rotatably connected to the outer walls of the tops of the two spraying acid pipes 54 through bearings, and the pulley pair 59 is installed between the two spraying acid pipes 54.

[0028] The protective plate frame 51: Covers the top of the pickling tank to prevent acid splashing.

[0029] The electric guide rail 53: Installed on the second side plate 3, the slider drives the connecting rod 52 to move horizontally, and the speed is adjustable.

[0030] The spraying acid pipe 54: Drives the first gear 55 and the second gear 56 through the servo motor 57 to make the spraying acid pipe 54 rotate, and cooperates with the pulley pair 59 for synchronous double-pipe action to ensure uniform atomization of the acid liquid.

[0031] The acid inlet pipe 58: Is connected to an external acid tank through the first solenoid valve 10, and the valve opening is adjusted by the PLC according to the signal of the acidity sensor 64.

[0032] In this embodiment, the acid replenishment mechanism 5 drives the first gear 55, the second gear 56 and the pulley pair 59 through the servo motor 57 to make the spraying acid pipe 54 move along the electric guide rail 53, combines with the control of the first solenoid valve 10 for the flow rate, realizes multi-angle and uniform acid spraying, ensures the consistency of the acid liquid concentration in the tank, and has the function of precise and intelligent acid replenishment.

[0033] Refer to Figure 4 , the pickling tank main body 1 includes an acid-resistant ceramic pool 12 and a fiberglass outer layer 13. Among them, the fiberglass outer layer 13 is installed outside the acid-resistant ceramic pool 12, and adjacent pickling pools are arranged inside the acid-resistant ceramic pool 12. It is composed of the acid-resistant ceramic pool 12 and the fiberglass outer layer 13. There are two independent pickling pools in the ceramic pool to process workpieces in different batches respectively; the fiberglass outer layer is bonded by epoxy resin to enhance the impact resistance.

[0034] Refer to Figure 3, a drain pipe 14 is installed at the bottom of the outer wall on one side of the pickling tank body 1, and a valve 15 is installed on the outer wall of the drain pipe 14. The two drain pipes 14 are respectively communicated with the inner walls of the two pickling pools.

[0035] A drain pipe 14 is arranged at the bottom of each pickling pool, and the valve 15 is a pneumatic butterfly valve, which supports remote control.

[0036] Refer to Figure 7 , the gas-liquid separator 45 includes a cylinder body 451, a liquid collection bottle 452, an air outlet pipe 453 and a filter element 454. Among them, the cylinder body 451 is fixedly connected to the outer wall of one end of the flue gas inlet pipe 44, and the outer wall of the cylinder body 451 is welded to the outer wall of the first side plate 2 through a bracket. The liquid collection bottle 452 is arranged on the outer wall at the bottom of the cylinder body 451. The air outlet pipe 453 is fixedly connected to the inner wall at the top of the cylinder body 451. The filter element 454 is installed inside the cylinder body 451, and the height of the filter element 454 is higher than the height of the flue gas inlet pipe 44.

[0037] Example 3, refer to Figure 11 , the acid monitoring member 6 includes a vertical pipe 61, a liquid inlet pipe 62, a liquid outlet pipe 63 and an acidity sensor 64. Among them, the vertical pipe 61 is arranged on the other side of the pickling tank body 1. The liquid inlet pipe 62 and the liquid outlet pipe 63 are both fixedly connected between the vertical pipe 61 and the pickling tank body 1, and the height of the liquid inlet pipe 62 is higher than the height of the liquid outlet pipe 63. The acidity sensor 64 is installed on the outer wall at the top of the vertical pipe 61, and the probe of the acidity sensor 64 is arranged inside the vertical pipe 61.

[0038] Vertical pipe 61: Vertically installed on the side wall of the tank body, forming a U-shaped liquid path inside.

[0039] Liquid inlet pipe 62 and liquid outlet pipe 63: Drive the acid liquid to circulate by using the height difference.

[0040] Acidity sensor 64: Adopts a glass electrode type, with a detection accuracy of ±0.1pH, and the data is transmitted to the control panel in real time.

[0041] In this embodiment, the acid monitoring member 6 circulates the acid liquid in the tank through the vertical pipe 61. The acidity sensor 64 detects the pH value in real time and transmits it to the control system to trigger acid replenishment or alarm, avoiding the delay of manual intervention, and enabling real-time acid monitoring and feedback.

[0042] Refer to Figure 8 , the filter element 454 includes an air filter element 7 and a honeycomb drip plate 8. Among them, the air filter element 7 is arranged on the inner wall of the cylinder body 451, and the honeycomb drip plate 8 is arranged at the bottom of the air filter element 7.

[0043] Refer to Figure 9 , the other side of the pickling tank body 1 is fixedly connected with a long guide rod 9, and one end of the other connecting rod 52 is slidably connected to the outer wall of the long guide rod 9.

[0044] Long guide rod 9: The surface is plated with hard chromium to ensure smooth sliding of the connecting rod 52 and reduce the vibration of the acid replenishing mechanism 5.

[0045] Refer to Figure 10 , and a first solenoid valve 10 is installed at each end of the outer wall of the acid inlet pipe 58 close to the two acid spraying pipes 54.

[0046] Refer to Figure 5 , and a second solenoid valve 11 is installed on the outer wall of the return pipe 46 close to one end of the return pipe 46.

[0047] Working principle: I. Acid mist recovery and treatment Acid mist generation: During the hot-dip galvanizing pickling process, a large amount of acid mist such as hydrochloric acid mist is generated when the acid solution reacts with the metal.

[0048] Negative pressure adsorption: After the negative pressure fan 43 is started, a negative pressure area is formed at the smoking pipe 41, and the acid mist in the pickling tank is sucked into the system through the smoke inlet pipe 42.

[0049] Gas-liquid separation: The acid mist enters the cylinder body 451 of the gas-liquid separator 45 through the smoke inlet pipe 44. First, large droplets are intercepted by the honeycomb drip plate 8, and the droplets fall into the liquid collection bottle 452 due to gravity; then the gas further filters residual acidic particles through the air filter element 7, and the purified gas is discharged through the air outlet pipe 453.

[0050] Acid solution reflux: The separated acid solution passes through the return pipe 46 and is automatically refluxed to the pickling tank main body 1 under the control of the second solenoid valve 11, realizing the recycling of the acid solution, reducing waste and environmental pollution.

[0051] II. Dynamic acid replenishment control Acid solution monitoring: The acid monitoring member 6 forms a circulation loop through the liquid inlet pipe 62 and the liquid outlet pipe 63, and the acidity sensor 64 continuously detects the concentration of the acid solution in the vertical pipe 61. When the acid solution concentration is lower than the set threshold, the sensor sends a signal to the control system.

[0052] Acid replenishment trigger: The control system starts the acid replenishing mechanism 5. The servo motor 57 drives the acid spraying pipe 54 to rotate through the first gear 55 and the second gear 56. At the same time, the electric guide rail 53 drives the protective plate frame 51 to move horizontally along the long guide rod 9, so that the acid spraying pipe 54 evenly sprays the acid solution in the pickling tank.

[0053] Precise acid supply: The acid inlet pipe 58 controls the acid solution flow through the first solenoid valve 10, and combines the pulley pair 59 to synchronize the rotation speed of the two acid spraying pipes 54, ensuring a wide coverage range and uniform concentration during the acid replenishment process.

[0054] III. Optimization of the pickling tank structure Corrosion-resistant design: The main body 1 of the pickling tank uses an acid-resistant ceramic pool 12 as the inner layer to resist strong acid corrosion; the outer layer is wrapped with a fiberglass layer 13 to enhance the structural strength and prevent external environmental erosion.

[0055] Partitioned pickling: Two adjacent pickling pools inside can process workpieces of different batches or types respectively, improving production efficiency.

[0056] IV. Sewage discharge and maintenance Waste liquid discharge: After pickling is completed, open the valve 15, and the waste liquid is quickly discharged through the sewage pipe 14. The double sewage pipe 14 is designed to clean the two pickling pools separately to avoid cross-contamination.

[0057] Maintenance of the filter element 454: Regularly replace the air filter element 7 and clean the honeycomb drip plate 8 to ensure the gas-liquid separation efficiency; the liquid collection bottle 452 is detachable for easy recovery of residual acid liquid.

[0058] V. Automatic coordination System linkage: Acid mist recovery, acid replenishment, monitoring, and sewage discharge are linked through the central control system. For example, when the acidity sensor 64 triggers acid replenishment, the negative pressure fan 43 keeps running to maintain a negative pressure environment in the tank and prevent acid mist from escaping.

[0059] Safety protection: The first solenoid valve 10 and the second solenoid valve 11 can be remotely controlled to quickly cut off the acid liquid or gas path in case of emergency, ensuring operation safety.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0062] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A hot-dip galvanizing pickling tank, comprising a pickling tank main body (1), characterized in that, On one side of the outer wall of the top of the pickling tank body (1), a first side plate (2) is provided, and on one side of the outer wall of the top of the pickling tank body (1), a second side plate (3) is provided. An acid mist recovery mechanism (4) is provided on the outer wall of the first side plate (2), and a supplementary acid mechanism (5) is provided on the outer wall of the second side plate (3). Among them, the acid mist recovery mechanism (4) and the supplementary acid mechanism (5) are respectively located on both sides of the pickling tank body (1). On the outer wall of the other side of the pickling tank body (1), an acid monitoring member (6) is provided; The acid mist recovery mechanism (4) includes a smoke suction pipe (41), a smoke inlet pipe (42), a negative pressure fan (43), a smoke inlet pipe (44), a gas-liquid separator (45), and a return pipe (46). Among them, the symmetrically distributed smoke suction pipes (41) are welded to the inner wall of the first side plate (2). The smoke inlet pipe (42) is fixedly connected to the outer wall of one end of the smoke suction pipe (41). The negative pressure fan (43) is installed on the outer wall of one end of the smoke inlet pipe (42). The smoke inlet pipe (44) is fixedly connected to the exhaust port of the negative pressure fan (43). The gas-liquid separator (45) is installed on the outer wall of one end of the smoke inlet pipe (44). The return pipe (46) is fixedly connected between the pickling tank body (1) and the gas-liquid separator (45).

2. The hot-dip galvanized pickling tank according to claim 1, wherein The pickling tank body (1) includes an acid-resistant ceramic pool (12) and a fiberglass outer layer (13). Among them, the fiberglass outer layer (13) is installed outside the acid-resistant ceramic pool (12), and adjacent pickling pools are provided inside the acid-resistant ceramic pool (12).

3. A hot-dip galvanizing pickling tank according to claim 1, wherein, A sewage discharge pipe (14) is installed at the bottom of the outer wall of one side of the pickling tank body (1), and a valve (15) is installed on the outer wall of the sewage discharge pipe (14). The two sewage discharge pipes (14) are respectively communicated with the inner walls of the two pickling pools.

4. A hot-dip galvanizing pickling tank according to claim 1, characterized in that, The gas-liquid separator (45) includes a cylinder body (451), a liquid collection bottle (452), an air outlet pipe (453), and a filter element (454). Among them, the cylinder body (451) is fixedly connected to the outer wall of one end of the smoke inlet pipe (44), and the outer wall of the cylinder body (451) is welded to the outer wall of the first side plate (2) through a bracket. The liquid collection bottle (452) is arranged on the outer wall of the bottom of the cylinder body (451). The air outlet pipe (453) is fixedly connected to the inner wall of the top of the cylinder body (451). The filter element (454) is installed inside the cylinder body (451), and the height of the filter element (454) is higher than the height of the smoke inlet pipe (44).

5. A hot-dip galvanizing pickling tank according to claim 1, characterized in that, The acid replenishing mechanism (5) includes a protective plate frame (51), a connecting rod (52), an electric guide rail (53), an acid spraying pipe (54), a first gear (55), a second gear (56), a servo motor (57), an acid inlet pipe (58), and a pulley pair (59). Among them, the protective plate frame (51) is arranged on the top of the pickling tank body (1), and there are two connecting rods (52) which are respectively welded on the outer walls on both sides of the protective plate frame (51). The electric guide rail (53) is fixedly connected to the outer wall of the second side plate (3) by screws, and one end of the outer wall of one of the connecting rods (52) is fixedly connected to the slider of the electric guide rail (53). The symmetrically distributed acid spraying pipes (54) are all rotatably connected to the inner wall of the bottom of the protective plate frame (51) through bearings. The first gear (55) is installed on the outer wall of one of the acid spraying pipes (54), and the second gear (56) meshes with the outer wall of the first gear (55). The output shaft of the servo motor (57) is fixedly connected to the inner wall of the second gear (56), and the servo motor (57) is fixedly connected to the outer wall of the bottom of the protective plate frame (51) by screws. The acid inlet pipe (58) is rotatably connected to the outer walls of the tops of the two acid spraying pipes (54) through bearings, and the pulley pair (59) is installed between the two acid spraying pipes (54).

6. The hot-dip galvanizing pickling tank according to claim 1, wherein The acid monitoring component (6) includes a vertical pipe (61), a liquid inlet pipe (62), a liquid outlet pipe (63), and an acidity sensor (64). Among them, the vertical pipe (61) is arranged on the other side of the pickling tank body (1). The liquid inlet pipe (62) and the liquid outlet pipe (63) are both fixedly connected between the vertical pipe (61) and the pickling tank body (1), and the height of the liquid inlet pipe (62) is higher than that of the liquid outlet pipe (63). The acidity sensor (64) is installed on the outer wall of the top of the vertical pipe (61), and the probe of the acidity sensor (64) is arranged inside the vertical pipe (61).

7. A hot-dip galvanized pickling tank according to claim 4, characterized in that, The filtering component (454) includes an air filter element (7) and a honeycomb drip plate (8). Among them, the air filter element (7) is arranged on the inner wall of the cylinder body (451), and the honeycomb drip plate (8) is arranged at the bottom of the air filter element (7).

8. A hot-dip galvanizing pickling tank according to claim 1, characterized in that, A long guide rod (9) is fixedly connected to the other side of the pickling tank body (1), and one end of the outer wall of the other connecting rod (52) is slidably connected to the outer wall of the long guide rod (9).

9. A hot-dip galvanizing pickling tank according to claim 5, characterized in that, A first solenoid valve (10) is installed on the outer wall of the acid inlet pipe (58) near one end of the two acid spraying pipes (54).

10. A hot-dip galvanizing pickling tank according to claim 1, characterized in that, A second solenoid valve (11) is installed on the outer wall of the reflux pipe (46) near one end of the reflux pipe (46).

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