Slag removal device for hot galvanizing bath

Abstract

The utility model discloses a slag removal device for a hot galvanizing bath, which belongs to the technical field of galvanizing processing, and comprises a galvanizing bath, a screw rod jointly rotatably connected onto two convex plates, a screw rod nut in threaded fit with the side surface of the screw rod, a slag salvaging hopper positioned in the galvanizing bath and connected onto the screw rod nut, and an inner cavity formed in the slag salvaging hopper. A plurality of through openings communicating with the inner cavity are formed in the bottom of the slag salvaging hopper, a jacking assembly is arranged between the lead screw nut and the slag salvaging hopper, and a clearing-out assembly is arranged in the slag salvaging hopper; when a large amount of slag is accumulated in the slag salvaging hopper, the lead screw drives the lead screw nut to move to one end of the lead screw, and the slag salvaging hopper is jacked and lifted through the jacking assembly, so that the slag salvaging hopper is located at the position higher than the upper surface of molten zinc, and the slag accumulated in the slag salvaging hopper can be conveniently removed; and the slag is pushed out by pushing the cleaning-out assembly to move in the slag salvaging hopper, and the cleaning efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of galvanizing processing technology, and in particular to a slag removal device for hot-dip galvanizing tanks. Background Technology

[0002] Hot-dip galvanizing, also known as hot-dip zinc plating, is an effective method of metal corrosion protection, mainly used in metal structures across various industries. It involves immersing rust-removed steel parts in molten zinc at approximately 500°C, causing a zinc layer to adhere to the surface of the steel components, thus achieving corrosion protection. The typical hot-dip galvanizing process involves first washing the parts with an alkaline solution, then rinsing off the alkaline solution with water; next, acid washing with an acidic solution, followed by rinsing off the acidic solution adhering to the surface with water; finally, applying ammonium chloride flux to the surface of the parts, drying them, and then immersing the parts completely in a zinc bath for galvanizing.

[0003] During the hot-dip galvanizing process, a certain amount of slag is generated on the substrate. Some of this slag is suspended in the zinc liquid, which affects the galvanizing quality of the substrate surface. The other part will settle to the bottom of the galvanizing tank when the zinc liquid flow is not vigorous, which will reduce the heating efficiency of the bottom heating zone. The existing slag removal methods usually involve using a filter screen to scoop the slag and cleaning the bottom of the tank. This requires waiting during production breaks, and the on-site personnel are working in a high-temperature environment, resulting in a large workload for the operators.

[0004] Therefore, it is necessary to provide a slag removal device for hot-dip galvanizing tanks to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a slag removal device for hot-dip galvanizing tanks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems: A slag removal device for a hot-dip galvanizing tank includes a galvanizing tank. Two symmetrically distributed protruding plates are fixed on the outer wall of the galvanizing tank. A lead screw is rotatably connected to the two protruding plates. A servo motor with its output end coaxially fixed to one end of the lead screw is fixed on the outer wall of the galvanizing tank. A lead screw nut is threaded onto the side of the lead screw. A slag-collecting bucket located inside the galvanizing tank is connected to the lead screw nut. An inner cavity is opened inside the slag-collecting bucket. Multiple openings communicating with the inner cavity are opened at the bottom of the slag-collecting bucket. A lifting assembly is provided between the lead screw nut and the slag-collecting bucket. A cleaning assembly is provided inside the slag-collecting bucket.

[0007] As a further embodiment of this utility model, a connecting plate located between two protruding plates is fixed on the outer wall of the galvanizing tank. A second sliding groove is provided on the top side of the connecting plate along the length of the connecting plate. A guide rod that is slidably adapted to the second sliding groove is fixed at the bottom end of the lead screw nut.

[0008] As a further embodiment of this utility model, the lifting assembly includes a metal spring plate fixed to the outer wall of the lead screw nut, and the slag hopper is fixed to the end of the metal spring plate away from the lead screw nut.

[0009] As a further embodiment of this utility model, an arc-shaped protrusion is fixed on the bottom side of the metal spring plate, and a T-shaped block located at one end of the galvanizing tank and slidingly engaged with the arc-shaped protrusion is fixed on the top side of the galvanizing tank.

[0010] As a further embodiment of this utility model, the cleaning component includes a pusher plate that is slidably adapted to the inner cavity, and a first sliding groove is provided on the top side of the slag hopper along the length direction of the slag hopper. A joint column that is slidably adapted to the first sliding groove is fixed to the top of the pusher plate.

[0011] As a further embodiment of this utility model, the end of the slag hopper away from the metal spring plate is provided as an opening and a cover plate is hinged inside the opening, and a lifting rod is fixed on the outer wall of the cover plate.

[0012] As a further embodiment of this utility model, an end plate is fixed to the top of the connector post, and a rubber sleeve is fitted onto the surface of the end plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The slag hopper is driven to move back and forth by the screw nut, thereby scraping small particles of slag floating on the surface of the zinc liquid into the inner cavity and accumulating inside the slag hopper. This effectively removes the floating slag, preventing it from affecting the galvanizing quality of the substrate surface. It can significantly reduce the amount of slag settling to the bottom of the tank, extend the cycle of thorough maintenance and cleaning during shutdown, ensure the stability of galvanizing quality, and enable the heating efficiency of the heating area to remain at a high level for a long time.

[0015] 2. When a large amount of slag accumulates inside the slag hopper, the screw nut is moved to one end of the screw by the screw rod, and the jacking component lifts the slag hopper so that it is above the surface of the zinc liquid. This allows the accumulated slag inside the slag hopper to be easily removed. By pushing the removal component inside the slag hopper, the slag inside the slag hopper is pushed out. The cleaning is convenient and efficient. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0018] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0019] Figure 3 This is a partial structural diagram of the cover plate of this utility model.

[0020] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0021] Figure 5 This is a partial structural diagram of the lifting component of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Lifting assembly; 101. Arc-shaped protrusion; 102. Metal spring plate; 103. T-shaped block; 2. Clearing assembly; 201. Push plate; 202. First chute; 203. Joint column; 204. End plate; 205. Cover plate; 206. Lifting rod; 3. Slag hopper; 4. Galvanized tank; 5. Lead screw; 6. Lead screw nut; 7. Servo motor; 8. Protruding plate; 9. Connecting plate; 10. Second chute; 11. Guide rod; 12. Inner cavity; 13. Through port. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figures 1-5This utility model provides a slag removal device for a hot-dip galvanizing tank, including a galvanizing tank 4. Two symmetrically distributed protruding plates 8 are fixed to the outer wall of the galvanizing tank 4. A lead screw 5 is rotatably connected to both protruding plates 8. A servo motor 7, with its output end coaxially fixed to one end of the lead screw 5, is fixed to the outer wall of the galvanizing tank 4. A lead screw nut 6 is threaded onto the side of the lead screw 5. A slag hopper 3 located inside the galvanizing tank 4 is connected to the lead screw nut 6. The slag hopper 3 has an inner cavity 12, and its bottom has a cavity communicating with the inner cavity 12. Multiple openings 13, a lifting assembly 1 is provided between the lead screw nut 6 and the slag hopper 3, a cleaning assembly 2 is provided inside the slag hopper 3, a connecting plate 9 is fixed on the outer wall of the galvanizing tank 4 between two protruding plates 8, a second sliding groove 10 is provided on the top side of the connecting plate 9 along the length of the connecting plate 9, and a guide rod 11 is fixed at the bottom end of the lead screw nut 6 to slide and adapt to the second sliding groove 10; the servo motor 7 is started to work, the output end of the servo motor 7 drives the lead screw 5 to rotate in both directions, and at the same time, through the guide rod 11 and The second chute 10 guides and limits the lead screw nut 6. The slag hopper 3 is located at the top of the galvanizing tank 4, with its lower part immersed in the molten zinc. The lead screw nut 6 drives the slag hopper 3 to reciprocate, scraping small particles of slag floating on the surface of the molten zinc into the inner cavity 12, where they accumulate. This effectively removes the floating slag, preventing it from affecting the galvanizing quality of the substrate surface. It significantly reduces the amount of slag settling at the bottom of the tank, extending the interval between shutdowns for thorough maintenance and cleaning, ensuring stable galvanizing quality, and making... The heating efficiency of the heating area can also be maintained at a high level for a long time. When there is a lot of slag accumulated inside the slag hopper 3, the screw nut 6 is moved to one end of the screw 5 by the screw 5, and the slag hopper 3 is lifted by the lifting component 1, so that the slag hopper 3 is in a position higher than the upper surface of the zinc liquid, so that the slag accumulated inside the slag hopper 3 can be easily cleaned out. By pushing the cleaning component 2 to move inside the slag hopper 3, the slag inside the slag hopper 3 is pushed out by the cleaning component 2, which is convenient and efficient.

[0026] Further as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, it is worth noting that the lifting assembly 1 includes a metal spring plate 102 fixed to the outer wall of the lead screw nut 6, and the slag hopper 3 is fixed to the end of the metal spring plate 102 away from the lead screw nut 6. In actual operation, the metal spring plate 102 can pull the slag hopper 3 upward, so that the slag hopper 3 is lifted out of the zinc liquid, thereby facilitating the cleaning of the slag inside the slag hopper 3.

[0027] Further as Figure 2 and Figure 5As shown, it is worth noting that an arc-shaped protrusion 101 is fixed on the bottom side of the metal spring plate 102, and a T-shaped block 103 is fixed on the top side of the galvanizing tank 4, located at one end of the galvanizing tank 4 and slidingly engaged with the arc-shaped protrusion 101. In specific operation, when a large amount of slag accumulates inside the slag hopper 3, the screw nut 6 is moved to one end of the screw 5 by the screw 5. At this time, the arc-shaped protrusion 101 and the T-shaped block 103 come into contact, and the slag hopper 3 is automatically lifted by the cooperation of the arc-shaped protrusion 101, the metal spring plate 102 and the T-shaped block 103, so that the slag hopper 3 is positioned above the upper surface of the zinc liquid, so that the slag accumulated inside the slag hopper 3 can be easily removed.

[0028] Further as Figure 1 , Figure 3 and Figure 4 As shown, it is worth noting that the cleaning component 2 includes a pusher plate 201 that is slidably adapted to the inner cavity 12. A first sliding groove 202 is provided on the top side of the slag hopper 3 along the length of the slag hopper 3. A connector post 203 that is slidably adapted to the first sliding groove 202 is fixed to the top of the pusher plate 201. In actual operation, by pulling the connector post 203 to slide in the first sliding groove 202, the pusher plate 201 is pulled to move inside the inner cavity 12, thereby pushing out the slag inside the slag hopper 3 through the pusher plate 201. The cleaning is convenient and efficient.

[0029] This solution has the following working process: The servo motor 7 is started, and its output drives the lead screw 5 to rotate reciprocally in both directions. Simultaneously, the guide rod 11 and the second slide groove 10 guide and limit the lead screw nut 6. The slag hopper 3 is located at the top of the galvanizing tank 4, with its lower part immersed in the molten zinc. The lead screw nut 6 drives the slag hopper 3 to move reciprocally, thereby scraping small particles of slag floating on the surface of the molten zinc into the inner cavity 12, where they accumulate inside the slag hopper 3, thus cleaning the floating slag. When a large amount of slag has accumulated, the screw nut 6 is moved to one end of the screw 5 by the screw 5. At this time, the arc-shaped protrusion 101 and the T-shaped block 103 come into contact. The arc-shaped protrusion 101, the metal spring plate 102 and the T-shaped block 103 work together to automatically lift the slag hopper 3, so that the slag hopper 3 is in a position higher than the upper surface of the zinc liquid. The cover plate 205 is opened, and the joint column 203 is pulled to slide in the first slide groove 202, thereby pulling the pusher plate 201 to move inside the inner cavity 12, thereby pushing out the slag inside the slag hopper 3 through the pusher plate 201.

[0030] Further as Figure 3As shown, it is worth noting that the end of the slag hopper 3 away from the metal spring plate 102 is set as an opening and a cover plate 205 is hinged inside the opening. A lifting rod 206 is fixed on the outer wall of the cover plate 205. During cleaning, the cover plate 205 is opened and the pusher plate 201 pushes the slag inside the slag hopper 3 to the opening of the slag hopper 3, so that the slag can be easily removed through the opening of the slag hopper 3.

[0031] Further as Figure 4 As shown, it is worth noting that the top of the connector post 203 is fixed with an end plate 204, and a rubber sleeve is fitted on the surface of the end plate 204. In actual operation, the end plate 204 facilitates the movement of the pusher plate 201 within the inner cavity 12, making operation convenient.

[0032] In summary: The screw nut 6 drives the slag hopper 3 to reciprocate, scraping small slag particles floating on the zinc liquid surface into the inner cavity 12 and accumulating inside the slag hopper 3. This effectively removes the floating slag, preventing it from affecting the galvanizing quality of the substrate surface. It significantly reduces slag settling to the bottom of the tank, extends the cycle of thorough maintenance and cleaning during shutdowns, ensures stable galvanizing quality, and allows the heating efficiency of the heating area to remain at a high level for an extended period. When a large amount of slag accumulates inside the slag hopper 3, the screw nut 6 is moved to one end of the screw 5, and the lifting assembly 1 lifts the slag hopper 3, placing it above the surface of the zinc liquid. This allows for easy removal of the accumulated slag. The removal assembly 2 then pushes the slag out of the slag hopper 3, making cleaning convenient and efficient.

[0033] The servo motor 7 can be purchased from the market. The servo motor 7 is equipped with a power supply. It is a mature technology in this field and has been fully disclosed. Therefore, it will not be described again in the specification.

Claims

1. A slag removal device for a hot-dip galvanizing tank, comprising a galvanizing tank, characterized in that, Two symmetrically distributed protruding plates are fixed on the outer wall of the galvanizing tank. A lead screw is rotatably connected to the two protruding plates. A servo motor with its output end coaxially fixed to one end of the lead screw is fixed on the outer wall of the galvanizing tank. A lead screw nut is threaded onto the side of the lead screw. A slag hopper located inside the galvanizing tank is connected to the lead screw nut. The slag hopper has an inner cavity. Multiple openings communicating with the inner cavity are opened at the bottom of the slag hopper. A lifting assembly is provided between the lead screw nut and the slag hopper. A cleaning assembly is provided inside the slag hopper.

2. The slag removal device for hot-dip galvanizing tanks according to claim 1, characterized in that, A connecting plate located between two protruding plates is fixed on the outer wall of the galvanizing tank. A second sliding groove is provided on the top side of the connecting plate along the length of the connecting plate. A guide rod that is slidably adapted to the second sliding groove is fixed at the bottom end of the lead screw nut.

3. The slag removal device for hot-dip galvanizing tanks according to claim 1, characterized in that, The lifting assembly includes a metal spring plate fixed to the outer wall of the lead screw nut, and the slag hopper is fixed to the end of the metal spring plate away from the lead screw nut.

4. The slag removal device for hot-dip galvanizing tanks according to claim 3, characterized in that, An arc-shaped protrusion is fixed on the bottom side of the metal spring plate, and a T-shaped block located at one end of the galvanizing tank and slidingly engaged with the arc-shaped protrusion is fixed on the top side of the galvanizing tank.

5. The slag removal device for hot-dip galvanizing tanks according to claim 1, characterized in that, The cleaning assembly includes a pusher plate that slides and adapts to the inner cavity. A first sliding groove is provided on the top side of the slag hopper along the length of the slag hopper. A joint column that slides and adapts to the first sliding groove is fixed to the top of the pusher plate.

6. The slag removal device for hot-dip galvanizing tanks according to claim 5, characterized in that, The end of the slag hopper away from the metal spring plate is set as an opening and a cover plate is hinged inside the opening. A lifting rod is fixed on the outer wall of the cover plate.

7. The slag removal device for a hot-dip galvanizing tank according to claim 6, characterized in that, The top of the connector post is fixed with an end plate, and a rubber sleeve is fitted onto the surface of the end plate.

Images