Automatic hot-dip galvanizing line for scaffold disc buckle

Abstract

The utility model relates to the field of scaffold disc buckle processing, concretely relates to scaffold disc buckle automatic hot dip galvanizing production line, its technical scheme is: including hot dip galvanizing pot and clamping sling, the clamping sling of adjacent middle is provided with dust collecting hood, the one end of dust collecting hood away from hot dip galvanizing pot is connected with cloth bag dust collector, the one side of cloth bag dust collector away from hot dip galvanizing pot is provided with spray tower, the bottom fixed welding of spray tower has base, the one side of spray tower away from cloth bag dust collector is provided with water storage tank, the upper end of water storage tank is connected with mixing box, the utility model has the beneficial effects that: when the flue gas enters the inner chamber of spray tower through cloth bag dust collector, the water containing lye can be sprayed into the flue gas containing acidic gas, the acid and alkali occur neutralization reaction, generate harmless salt and water, thereby remove the acidic gas in the flue gas, and the purified flue gas can be discharged through the pipeline at the top of spray tower, avoid the harm of the acid gas mixed in the flue gas to human body.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding disc buckle processing, specifically to an automatic hot-dip galvanizing production line for scaffolding disc buckles. Background Technology

[0002] During the hot-dip galvanizing process, when the scaffolding coils are immersed in the zinc pot, the ammonium chloride in the flux decomposes at high temperatures, producing ammonia and hydrogen chloride gas. Zinc chloride also volatilizes under high temperatures, combining with water vapor in the air to form zinc fumes, the main components of which are zinc oxide and zinc chloride. When the zinc liquid is at high temperatures, the zinc vapor on its surface reacts with oxygen in the air to generate zinc oxide particles, forming fumes. Untreated zinc fumes are directly emitted into the atmosphere, causing environmental pollution, affecting air quality, and adversely impacting the surrounding ecological environment. Furthermore, if the zinc oxide and zinc chloride particles in the fumes are inhaled, they can irritate and damage the respiratory tract and lungs. Long-term exposure may lead to zinc poisoning and other health problems, causing respiratory diseases and lung infections.

[0003] The conventional approach is to treat the flue gas using dust removal equipment. Commonly used dust removal equipment includes bag filters and electrostatic precipitators. Bag filters use filter bags to filter out particulate matter in zinc fumes, allowing the purified gas to be released into the atmosphere. Electrostatic precipitators, on the other hand, use an electric field to adsorb particulate matter in the flue gas onto the collecting plates, thus achieving the purpose of dust removal.

[0004] However, while dust removal equipment can effectively filter smoke and dust, it cannot treat acidic gases in zinc fumes, such as hydrogen chloride. As a result, after the filtered smoke and dust are emitted, the acidic gases are still mixed in with the filtered gas, posing a safety hazard.

[0005] Therefore, it is necessary to invent an automatic hot-dip galvanizing production line for scaffolding disc buckles. Utility Model Content

[0006] The purpose of this invention is to solve the problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic hot-dip galvanizing production line for scaffolding disc buckles, comprising a hot-dip galvanizing pot and clamping hangers. The clamping hangers are arranged on both sides of the upper end of the hot-dip galvanizing pot. A dust collection hood is arranged between adjacent clamping hangers. A bag filter is connected to the end of the dust collection hood away from the hot-dip galvanizing pot. The bag filter is located on one side of the hot-dip galvanizing pot. A spray tower is arranged on the side of the bag filter away from the hot-dip galvanizing pot. A base is fixedly welded to the bottom of the spray tower. A water storage tank is arranged on the side of the spray tower away from the bag filter. A mixing tank is connected to the upper end of the water storage tank.

[0008] Based on the above characteristics: the scaffolding disc buckle material is placed into the hot-dip galvanizing pot through a clamping and lifting device, so that a zinc layer is evenly attached to the surface of the scaffolding disc buckle material. At this time, the dust collection hood will be located above the hot-dip galvanizing pot to collect the flue gas generated during the hot-dip galvanizing process. Then, this flue gas will be transmitted to a bag filter for filtration, and then to a spray tower for acid removal. Finally, the filtered and purified gas can be discharged to the outside, while the deacidified liquid can fall into the base for filtration and collection. The collected liquid can be discharged from the water storage tank and then transported to the mixing tank for convenient secondary use.

[0009] Preferably, the upper end of the dust collection hood is connected to a guide pipe A and a fan connected to the other end of the guide pipe A, and the output end of the fan is connected to a guide pipe B.

[0010] Based on the above characteristics: when the fan starts, the flue gas can be collected by the guide pipe A and the dust collection hood, and then introduced into the bag filter through the guide pipe B.

[0011] Preferably, limit plates are fixedly welded to both sides of the inner wall of the base, a filter drawer is movably inserted into the inner cavity of the base, a sealing door plate is movably connected to one side of the base, and a slot is provided on the surface of the base near the sealing door plate.

[0012] Based on the above features: the limiting plate can limit the filter drawer in the inner cavity of the base, leaving a gap between the bottom of the filter drawer and the bottom surface of the base, while the sealing door can seal one side of the base to prevent leakage after liquid enters the base.

[0013] Preferably, the filter drawer is a rectangular frame structure with an open top, baffles are symmetrically welded to both sides of the top of the filter drawer, and a filter screen is provided on the bottom surface of the filter drawer.

[0014] Based on the above characteristics: when harmless salts and water are generated inside the spray tower and fall, the salts and water will fall into the filter drawer. At this time, the filter screen can filter and separate the solid salts and liquid water. The liquid that passes through the filter screen will fall to the bottom of the base cavity.

[0015] Preferably, a sealing block is fixedly connected to one side surface of the sealing door panel, and the sealing block matches the slot.

[0016] Based on the above features: when the sealing door panel blocks the opening on one side of the base, the sealing block on one side of the sealing door panel will be inserted into the slot for positioning and sealing.

[0017] Preferably, a suction pump A is provided between the water storage tank and the base, and a circulation pump is provided on the side of the water storage tank away from the suction pump A, and the output end of the circulation pump is connected to a return water pipe.

[0018] Based on the above features, it is convenient to use the storage circulation pump and return water pipe to pump the water in the storage tank to the mixing tank.

[0019] Preferably, a suction pump B is installed on the side of the mixing tank near the spray tower, and a water distributor is connected to the end of the suction pump B away from the mixing tank. Spray heads are spaced apart at the lower end of the water distributor.

[0020] Based on the above characteristics: the suction pump B can transport the liquid extracted from the mixing tank to the water distributor, and then spray it downward through the spray head. At this time, the water containing alkaline solution can be sprayed into the flue gas containing acidic gas. The acid and alkali will undergo a neutralization reaction to generate harmless salts and water, thereby removing the acidic gas in the flue gas.

[0021] The beneficial effects of this utility model are:

[0022] 1. Facilitates the removal of acidic gases from flue gas. When the flue gas enters the inner cavity of the spray tower through the bag filter, the suction pump B can transport the liquid extracted from the mixing tank to the water distributor, and then spray it downward through the spray head. At this time, the water containing alkaline solution can be sprayed onto the flue gas containing acidic gases. The acid and alkali will undergo a neutralization reaction to generate harmless salts and water, thereby removing the acidic gases from the flue gas. The purified flue gas can be discharged through the pipe at the top of the spray tower to avoid the acidic gases in the flue gas from causing harm to the human body.

[0023] When harmless salts and water are generated inside the spray tower and fall, they will fall into the filter drawer. At this time, the filter screen can filter and separate the solid salts and liquid water. The liquid that passes through the filter screen will fall to the bottom of the base cavity, and the suction pump A can use the inlet pipe to draw out the filtered liquid, and then input it into the water storage tank through the outlet pipe, so that the filtered liquid can be reused.

[0024] 2. The filter drawer is removable and detachable. The sealing door panel can block the opening on one side of the base to prevent liquid leakage into the inner cavity of the base. A sealing block is fixedly connected to one side of the sealing door panel. The sealing block is made of rubber and has good sealing performance. When the sealing door panel blocks the opening on one side of the base, the sealing block on one side of the sealing door panel will insert into the slot for positioning and sealing. When it is necessary to remove the filter drawer to clean solid salts, simply remove the sealing door panel and then pull out the filter drawer to separate it from the base. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of the automatic hot-dip galvanizing production line for scaffolding disc buckles provided by this utility model;

[0026] Figure 2 A diagram showing the connection status of the spray tower, water storage tank, and mixing tank in the automatic hot-dip galvanizing production line for scaffolding disc buckles provided by this utility model.

[0027] Figure 3 A schematic diagram of the base structure of the automatic hot-dip galvanizing production line for scaffolding disc buckles provided by this utility model;

[0028] Figure 4 Another structural schematic diagram of the sealing door panel of the automatic hot-dip galvanizing production line for scaffolding disc buckles provided by this utility model;

[0029] Figure 5 The existing process flow diagram of the automatic hot-dip galvanizing production line for scaffolding disc buckles provided by this utility model.

[0030] In the diagram: 1. Hot-dip galvanizing pot; 2. Clamping and lifting device; 3. Dust collection hood; 31. Guide pipe A; 32. Fan; 33. Guide pipe B; 4. Bag filter; 5. Spray tower; 6. Base; 61. Limiting plate; 62. Filter drawer; 621. Baffle; 622. Filter screen; 63. Sealing door panel; 631. Sealing block; 64. Slot; 7. Water storage tank; 71. Suction pump A; 72. Circulation pump; 73. Return water pipe; 8. Mixing box; 81. Suction pump B; 82. Water distributor; 83. Spray head. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] See attached document Figure 5 The existing process flow diagram of the automatic hot-dip galvanizing production line includes processes such as feeding, alkaline washing, acid washing, cleaning, fluxing, drying, hot-dip galvanizing, cooling, passivation, quality inspection and packaging.

[0033] During use, intelligent trolleys or automated feeding equipment are used to extract the raw materials for galvanizing scaffolding disc buckles from the rack or pool and place them onto the conveyor on the production line. This ensures that the raw materials can stably and accurately enter subsequent processes. During conveying, the raw materials are first immersed in an alkaline solution. The alkaline solution removes the anti-corrosion oil layer from the outside of the raw materials, and ultrasonic vibrations generate cavitation, enhancing the cleaning effect and making the surface of the raw materials cleaner, preparing them for subsequent pickling. Then, the alkaline-washed scaffolding disc buckles are... The scaffolding clip material is inserted into the acid solution. The acid solution not only neutralizes the alkaline solution remaining on the outside of the scaffolding clip material, but also reacts chemically with the oxide layer of the scaffolding clip material to remove it. Similarly, during pickling, ultrasonic vibration can also generate cavitation effect to improve pickling efficiency and quality, ensuring that the oxide layer of the scaffolding clip material is completely removed. After pickling, the scaffolding clip material is inserted into clean water to thoroughly wash away the acid solution remaining on its outside, preventing the acid solution from having an adverse effect on subsequent processes and avoiding corrosion of the steel.

[0034] In the next process, the cleaned scaffolding disc buckle material is immersed in an aqueous solution of ammonium chloride or zinc chloride, or a mixed aqueous solution of ammonium chloride and zinc chloride, so that the surface of the scaffolding disc buckle material is evenly coated with a flux. The flux can prevent the scaffolding disc buckle material from oxidizing again before immersion in zinc, and also helps the scaffolding disc buckle material to be wetted in zinc liquid and form a zinc layer. After the fluxing is completed, the scaffolding disc buckle material coated with flux is dried to remove the moisture on its surface.

[0035] Hot-dip galvanizing mainly includes a hot-dip galvanizing pot 1 and a clamping and lifting device 2. The zinc liquid is contained in the hot-dip galvanizing pot 1, while the clamping and lifting device 2 is symmetrically arranged on both sides above the hot-dip galvanizing pot 1. The dried scaffolding disc buckle raw material is clamped by automated equipment (clamping and lifting device 2) and fed into the molten zinc liquid, so that the zinc layer is evenly attached to the surface of the scaffolding disc buckle raw material. The immersion time depends on factors such as the size and shape of the steel and the required thickness of the galvanized layer. After hot-dip galvanizing, the scaffolding disc buckle raw material needs to be cooled, usually by natural cooling or air cooling, so that the galvanized layer gradually solidifies, improving its hardness and adhesion.

[0036] Finally, the cooled scaffolding disc buckle material can be passivated to enhance the corrosion resistance of the galvanized layer. The treated scaffolding disc buckle material is then inspected and packaged for easy transportation and storage, preventing the galvanized layer from being scratched or damaged in subsequent processes.

[0037] See attached document Figure 1-2The present invention provides an automatic hot-dip galvanizing production line for scaffolding disc buckles, comprising a hot-dip galvanizing pot 1 and clamping hangers 2. Two clamping hangers 2 are positioned on either side of the upper end of the hot-dip galvanizing pot 1, with a space between them. A dust collection hood 3 is positioned between adjacent clamping hangers 2, located in the gap between the two clamping hangers 2. When the clamping hangers 2 lower the scaffolding disc buckle material into the hot-dip galvanizing pot 1, the dust collection hood 3 will also be positioned above the hot-dip galvanizing pot 1. A guide pipe A31 is connected to the upper end of the dust collection hood 3, and a fan 32 (the model is not specifically limited and can be selected according to needs) is connected to the other end of the guide pipe A31. The output end of the fan 32 is connected to one end of the guide pipe A31 via a flange, and a guide pipe B33 is connected to the output end of the fan 32 via a flange. A bag filter 4 is connected to the end of the dust collection hood 3 furthest from the hot-dip galvanizing pot 1. Located on one side of the hot-dip galvanizing pot 1, when the fan 32 is started, the flue gas can be drawn through the guide pipe A31 and the dust collection hood 3, and then the flue gas is input into the bag dust collector 4 through the guide pipe B33. The working principle of the bag dust collector 4 is mainly based on the filter material (usually a bag) to filter the dust-laden flue gas, and retain the dust particles on the surface of the bag, thereby achieving air purification. When the dust-laden flue gas enters the dust collector, it first undergoes preliminary treatment such as cooling and dehumidification in the pretreatment chamber to reduce the adhesion of dust particles. Then, the flue gas enters the filtration chamber. When the dust particles are wrapped around the filter cloth fibers, they collide with the fibers due to inertial force and are intercepted. Fine dust particles collide with the fibers and are separated because the gap between the fibers is smaller than the free path of the Brownian motion of the flue gas molecules. The purified air is discharged from the outlet, and the filtered dust impurities will fall into the ash hopper at the bottom for unified treatment.

[0038] A spray tower 5 is installed on the side of the bag filter 4 away from the hot-dip galvanizing pot 1. The spray tower 5 is usually composed of a tower shell, an inner lining, and inlet and outlet pipes. The filtered flue gas enters the interior of the spray tower 5 through the inlet pipe. After treatment, the flue gas will be discharged through the exhaust pipe at the top of the spray tower 5 (the outlet of the bag filter 4 and the inlet of the spray tower 5 are connected by a pipe with a flange connection to facilitate flue gas transportation. A one-way valve is installed on the pipe to prevent flue gas backflow. An axial flow exhaust fan is installed at the top of the spray tower 5. The specific model is not limited. It is convenient to export the purified flue gas inside the spray tower 5).

[0039] A base 6 is fixedly welded to the bottom of the spray tower 5. A water storage tank 7 is installed on the side of the spray tower 5 away from the bag filter 4. A suction pump A71 is installed between the water storage tank 7 and the base 6. The input end of the suction pump A71 is connected to the lower end of one side of the base 6 via a pipe, and the output end of the suction pump A71 is connected to one side of the water storage tank 7. A one-way valve is installed on this pipe to prevent liquid backflow. A circulation pump 72 (model GDL) is installed on the side of the water storage tank 7 away from the suction pump A71. The input end of the circulation pump 72 is connected to... A water storage tank 7 is connected to a return water pipe 73 at the output end of a circulation pump 72. A mixing tank 8 is connected to the upper end of the water storage tank 7. The end of the return water pipe 73 away from the circulation pump 72 is connected to the upper end of the mixing tank 8, so that the water in the water storage tank 7 can be pumped into the mixing tank 8 by using the circulation pump 72 and the return water pipe 73. A water inlet pipe is provided at the upper end of the mixing tank 8 for easy addition of water and alkali solution. A discharge pipe is provided on the lower side of the mixing tank 8. A solenoid valve is provided on the discharge pipe. When the solenoid valve is opened, the water and alkali solution inside the mixing tank 8 can be discharged.

[0040] A suction pump B81 (both suction pump A71 and suction pump B81 are QW series, and the specific model is not limited; they can be selected according to the needs) is installed on the side of the mixing tank 8 near the spray tower 5. The suction pump B81 can extract the liquid in the mixing tank 8. The end of the suction pump B81 away from the mixing tank 8 is connected to a water distributor 82. Spray heads 83 are arranged at intervals at the lower end of the water distributor 82. The spray heads 83 can be arranged in a rectangular array or a ring array. This application does not make a specific limitation. The suction pump B81 can transport the liquid extracted from the mixing tank 8 to the water distributor 82, and then spray it downward through the spray heads 83. At this time, the water containing alkaline solution can be sprayed into the flue gas containing acidic gas. The acid and alkali will undergo a neutralization reaction to generate harmless salts and water, thereby removing the acidic gas in the flue gas. The purified flue gas can be discharged through the pipe at the top of the spray tower 5.

[0041] See attached document Figure 2-4The automatic hot-dip galvanizing production line for scaffolding disc buckles provided by this utility model has an opening on one side of the base 6 and a central hole at the top. Limiting plates 61 are fixedly welded to both sides of the inner wall of the base 6. A filter drawer 62 is movably inserted into the inner cavity of the base 6. Baffles 621 are symmetrically welded to both sides of the upper end of the filter drawer 62. When the filter drawer 62 is inserted into the inner cavity of the base 6 through the opening, the baffles 621 on both sides of the upper end of the filter drawer 62 will limit it above the limiting plates 61. The bottom of the filter drawer 62 will not contact the bottom surface of the inner cavity of the base 6, leaving a certain gap. The filter drawer 62 is a rectangular frame structure with an opening at the top, and the whole is U-shaped. A filter screen 622 is provided on the bottom surface of the filter drawer 62. When harmless salts and water are generated in the spray tower 5 and fall, the salts and water will fall... Inside the filter drawer 62, the filter screen 622 separates the solid salts from the liquid water. The liquid passing through the filter screen 622 falls to the bottom of the inner cavity of the base 6. The suction pump A71 can extract the filtered liquid through the inlet pipe and then input it into the water storage tank 7 through the outlet pipe for easy reuse. A sealing door plate 63 is movably connected to one side of the base 6 to seal the opening on one side of the base 6 and prevent the liquid flowing into the inner cavity of the base 6 from leaking. A slot 64 is provided on the surface of the base 6 near the sealing door plate 63 to facilitate the positioning, installation and sealing of the sealing door plate 63. When it is necessary to remove the filter drawer 62 to clean the solid salts, simply remove the sealing door plate 63 and then pull out the filter drawer 62 to separate it from the base 6.

[0042] A sealing block 631 is fixedly connected to one side surface of the sealing door panel 63. The sealing block 631 is made of rubber and has good sealing performance. The sealing block 631 matches the slot 64. Both the sealing block 631 and the slot 64 are rectangular structures. Lugs are fixedly welded to the four corners of the sealing door panel 63 and the base 6. A hole is opened in the middle of the lug. When the sealing door panel 63 blocks the opening on one side of the base 6, the sealing block 631 on one side of the sealing door panel 63 will be inserted into the slot 64 for positioning and sealing. The lugs at the four corners of the two will fit together. Finally, bolts can be used to fix them through.

[0043] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An automatic hot-dip galvanizing production line for scaffolding disc buckles, comprising a hot-dip galvanizing pot (1) and clamping hangers (2), wherein the clamping hangers (2) are disposed on both sides of the upper end of the hot-dip galvanizing pot (1), characterized in that: A dust collection hood (3) is provided between adjacent clamping and lifting devices (2). A bag filter (4) is connected to the end of the dust collection hood (3) away from the hot-dip galvanizing pot (1). The bag filter (4) is located on one side of the hot-dip galvanizing pot (1). A spray tower (5) is provided on the side of the bag filter (4) away from the hot-dip galvanizing pot (1). A base (6) is fixedly welded to the bottom of the spray tower (5). A water storage tank (7) is provided on the side of the spray tower (5) away from the bag filter (4). A mixing tank (8) is connected to the upper end of the water storage tank (7).

2. The automatic galvanizing line for scaffolding couplers according to claim 1, characterized in that: The dust collection hood (3) is connected to a guide tube A (31) at its upper end and a fan (32) at the other end of the guide tube A (31). The output end of the fan (32) is connected to a guide tube B (33).

3. The automatic galvanizing line for scaffolding couplers according to claim 1, characterized in that: Limiting plates (61) are fixedly welded to both sides of the inner wall of the base (6). A filter drawer (62) is movably inserted into the inner cavity of the base (6). A sealing door plate (63) is movably connected to one side of the base (6). A slot (64) is opened on the surface of the base (6) near the sealing door plate (63).

4. The automatic galvanizing line for scaffolding couplers according to claim 3, characterized in that: The filter drawer (62) is a rectangular frame structure with an opening at the top. The filter drawer (62) has baffles (621) symmetrically welded on both sides at the top. The bottom surface of the filter drawer (62) is provided with a filter screen (622).

5. The automatic galvanizing line for scaffolding couplers according to claim 3, characterized in that: A sealing plug (631) is fixedly connected to one side surface of the sealing door panel (63), and the sealing plug (631) matches the slot (64).

6. The automatic galvanizing line for scaffolding couplers according to claim 1, characterized in that: A suction pump A (71) is provided between the water storage tank (7) and the base (6). A circulation pump (72) is provided on the side of the water storage tank (7) away from the suction pump A (71). The output end of the circulation pump (72) is connected to a return water pipe (73).

7. The automatic galvanizing line for scaffolding couplers according to claim 1, characterized in that: A suction pump B (81) is provided on the side of the mixing tank (8) near the spray tower (5). A water distributor (82) is connected to the end of the suction pump B (81) away from the mixing tank (8). Spray heads (83) are provided at intervals at the lower end of the water distributor (82).

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