Filtering device for passivating treatment of galvanized steel pipe

Abstract

The utility model provides a filtering device for passivating a galvanized steel pipe. The filtering device for passivating treatment of the galvanized steel pipe comprises a supporting table, the top of the supporting table is fixedly connected with a bearing column, and the top of the bearing column is fixedly connected with a top plate. According to the filtering device for passivating the galvanized steel pipe, the filtering net is arranged, when the steel pipe is passivated, the steel pipe and a passivating solution are injected into the passivating box, and when the steel pipe is passivated, the first motor is started, so that the first motor drives a steel rope to be wound through the winding wheel; a filter screen is driven by a lifting frame to be lifted, so that the filter screen drives impurities in the passivation solution to be lifted out of the passivation box, at the moment, the filter screen is moved into the cleaning box, the cleaning solution in the cleaning box can wash the impurities in the filter screen into the cleaning box, and then the filtering effect of the passivation solution is achieved; and the cyclic utilization effect of the passivation solution is improved.

Description

Technical Field

[0001] This utility model relates to the field of filtration devices, and in particular to a filtration device for passivating galvanized steel pipes. Background Technology

[0002] Hot-dip galvanizing is a process in which molten metal reacts with an iron substrate to create an alloy layer, thus bonding the substrate and the coating. The process begins with pickling the steel pipe to remove iron oxide from its surface. After pickling, the pipe is cleaned in an aqueous solution of ammonium chloride or zinc chloride, or a mixture of both, before being immersed in the hot-dip galvanizing bath. Hot-dip galvanizing offers advantages such as uniform coating, strong adhesion, and long service life. The hot-dip galvanized steel pipe substrate undergoes a complex physical and chemical reaction with the molten galvanizing solution, forming a corrosion-resistant, tightly structured zinc-iron alloy layer. This alloy layer is integrated with the pure zinc layer and the steel pipe substrate, resulting in strong corrosion resistance. Stainless steel passivation solutions are used for post-plating treatment of zinc, cadmium, and other coatings, aiming to create a surface condition on the coating that prevents normal metal reactions.

[0003] In existing technologies, such as the Chinese patent application CN220564720U entitled "A Passivation Device for Galvanized Steel Pipes," a horizontally arranged cylindrical body is included. The openings at both ends of the cylindrical body are sealed with front and rear plates, respectively, forming a closed processing chamber inside the cylindrical body. The end of the processing chamber near the front plate is the feed side, where a spray device is installed to spray the passivation solution onto the galvanized steel pipe to be passivated. The end of the processing chamber near the rear plate is the discharge side, where an air knife dewatering device is installed to dry the passivation solution on the galvanized steel pipe. This invention has the following advantages: the passivation solution is returned to the lower storage chamber via a return pipe for reuse, ensuring the passivation effect. It also allows for continuous operation, fast processing speed, simple operation, minimal impact on workers and the environment, reduced labor intensity, and high utilization rate of the passivation solution.

[0004] In existing technologies, when passivation solutions are recycled multiple times, a large number of impurities tend to flow along with the passivation solution at the end of each use, causing the passivation solution to become contaminated with impurities after each use. This results in poor performance when the contaminated passivation solution is reused.

[0005] Therefore, it is necessary to provide a filtration device for passivation treatment of galvanized steel pipes to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a filtration device for passivation treatment of galvanized steel pipes, which solves the problem that when the passivation solution is used once, a lot of impurities tend to flow together, causing the passivation solution to be contaminated by impurities after a single use, resulting in poor performance when the contaminated passivation solution is reused.

[0007] To solve the above-mentioned technical problems, this utility model provides a filter device for passivation treatment of galvanized steel pipes, including a support platform, a load-bearing column fixedly connected to the top of the support platform, a top plate fixedly connected to the top of the load-bearing column, a limit sleeve fixedly connected to the top of the top plate, a sliding block movably fitted inside the limit sleeve, a No. 1 motor fixedly installed at the bottom of the sliding block, a winding wheel movably fitted on the output shaft of the No. 1 motor, a steel cable fixedly fitted inside the winding wheel, a hook fixedly connected to one end of the steel cable, a passivation box fixedly connected to the top of the support platform, a lifting frame movably fitted inside the passivation box, a filter screen fixedly fitted inside the lifting frame, a lifting frame fixedly connected to the top of the lifting frame, a retaining ring fixedly connected to the top of the lifting frame, a cleaning box fixedly connected to the top of the support platform, a cleaning mechanism provided on the top of the support platform, an adjustment mechanism provided on the side of the limit sleeve, a sliding ball movably fitted at the bottom of the inner cavity of the limit sleeve, and a moving mechanism provided at the bottom of the support platform.

[0008] Preferably, the filter screen is located directly below the winding reel, and the filter screen is made of glass fiber material.

[0009] Preferably, the limiting sleeve is located directly above the top plate, and the limiting sleeve is adapted to the sliding block.

[0010] Preferably, the number of hooks is two, and the two hooks are symmetrically distributed about the filter screen as an axis of symmetry.

[0011] Preferably, the cleaning mechanism includes a water tank, which is fixedly connected to one side of the top of the support platform. A water pump is fixedly installed on the top of the water tank, and a water pipe is fixedly sleeved on the top of the water pump. A high-pressure nozzle is fixedly sleeved at one end of the water pipe.

[0012] Preferably, the adjusting mechanism includes a second motor, which is fixedly installed on the side of the limiting sleeve. A threaded column is fixedly connected to the output shaft of the second motor, and the threaded column is threadedly sleeved inside the sliding block.

[0013] Preferably, the number of sliding balls is several, and the several sliding balls are evenly distributed at the bottom of the inner cavity of the limiting sleeve.

[0014] Preferably, the moving mechanism includes a support column, which is fixedly connected to the bottom of the support platform, and a sliding wheel is installed at the bottom of the support column.

[0015] Compared with related technologies, the filter device for passivation treatment of galvanized steel pipes provided by this utility model has the following beneficial effects:

[0016] This utility model provides a filter device for passivation treatment of galvanized steel pipes. By setting up a filter screen, when the steel pipe is being passivated, the steel pipe and passivation liquid are injected into the passivation tank. When the passivation treatment is completed, the No. 1 motor is started, which drives the steel cable to wind up via the winding wheel. This winds up the filter screen via the lifting frame, allowing the filter screen to carry the impurities inside the passivation liquid out of the passivation tank. At this time, the filter screen is moved into the cleaning tank, where the cleaning liquid washes the impurities inside the filter screen into the cleaning tank, thereby achieving the filtration effect of the passivation liquid and improving the recycling effect of the passivation liquid.

[0017] By setting up a cleaning mechanism, when rinsing the impurities inside the filter screen, the filter screen is placed inside the cleaning tank, and the water pump is started to draw water from the tank and spray it through the water pipe and high-pressure nozzle to the inside of the filter screen. This washes the impurities inside the filter screen into the cleaning tank, thus achieving the cleaning effect of the filter screen and making it easier to clean impurities from the passivation solution. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of a filter device for passivation treatment of galvanized steel pipes provided by this utility model;

[0019] Figure 2 for Figure 1 The image shows a front view of a filter device for passivating galvanized steel pipes.

[0020] Figure 3 for Figure 1 The image shows a front view of a sliding block in a filter device for passivating galvanized steel pipes.

[0021] Figure 4 for Figure 1 The image shows a front view of a filter screen in a filter device for passivation treatment of galvanized steel pipes.

[0022] The following are the labeling elements in the diagram: 1. Support platform; 2. Load-bearing column; 3. Top plate; 4. Limit sleeve; 5. Sliding block; 6. Motor No. 1; 7. Rewinding reel; 8. Steel cable; 9. Hook; 10. Passivation box; 11. Lifting frame; 12. Filter screen; 13. Lifting frame; 14. Snap ring; 15. Cleaning box; 16. Cleaning mechanism; 161. Water tank; 162. Water pump; 163. Water pipe; 164. High-pressure nozzle; 17. Adjustment mechanism; 171. Motor No. 2; 172. Threaded column; 18. Sliding ball; 19. Moving mechanism; 191. Support column; 192. Sliding wheel. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of a filter device for passivation treatment of galvanized steel pipes provided by this utility model; Figure 2 for Figure 1 The image shows a front view of a filter device for passivating galvanized steel pipes. Figure 3 for Figure 1 The image shows a front view of a sliding block in a filter device for passivating galvanized steel pipes. Figure 4 for Figure 1 The image shows a front view of a filter screen in a filter device for passivation treatment of galvanized steel pipes. The filter device includes a support platform 1, a load-bearing column 2 fixedly connected to the top of the support platform 1, a top plate 3 fixedly connected to the top of the load-bearing column 2, a limit sleeve 4 fixedly connected to the top of the top plate 3, a sliding block 5 movably sleeved inside the limit sleeve 4, a motor 6 fixedly mounted at the bottom of the sliding block 5, a winding wheel 7 movably sleeved on the output shaft of the motor 6, a steel cable 8 fixedly sleeved inside the winding wheel 7, and a hook 9 fixedly connected to one end of the steel cable 8. The top of the support platform 1 is fixedly connected to... The passivation box 10 has a lifting frame 11 that is movably sleeved inside. A filter screen 12 is fixedly sleeved inside the lifting frame 11. A lifting frame 13 is fixedly connected to the top of the lifting frame 11. A retaining ring 14 is fixedly connected to the top of the lifting frame 13. A cleaning box 15 is fixedly connected to the top of the support platform 1. A cleaning mechanism 16 is provided on the top of the support platform 1. An adjustment mechanism 17 is provided on the side of the limiting sleeve 4. A sliding ball 18 is movably sleeved at the bottom of the inner cavity of the limiting sleeve 4. A moving mechanism 19 is provided at the bottom of the support platform 1.

[0025] The filter screen 12 is located directly below the winding reel 7, and the filter screen 12 is made of fiberglass. By setting the filter screen 12, when the steel pipe is passivated, the steel pipe and passivation liquid are injected into the passivation box 10. When the passivation treatment of the steel pipe is completed, the first motor 6 is started, so that the first motor 6 drives the steel cable 8 to wind up through the winding reel 7, that is, the filter screen 12 is lifted through the lifting frame 11, so that the filter screen 12 can carry the impurities inside the passivation liquid out of the passivation box 10. At this time, the filter screen 12 is moved into the cleaning box 15, so that the cleaning liquid in the cleaning box 15 can flush the impurities inside the filter screen 12 into the cleaning box 15, thereby achieving the filtration effect of the passivation liquid, that is, improving the recycling effect of the passivation liquid.

[0026] The limiting sleeve 4 is located directly above the top plate 3, and the limiting sleeve 4 is adapted to the sliding block 5. By setting the limiting sleeve 4, when the sliding block 5 drives the winding wheel 7 to move horizontally, the limiting sleeve 4 can limit the horizontally moving sliding block 5, thereby avoiding the problem of tilting and deflection when the sliding block 5 drives the No. 1 motor 6 to move horizontally, thus improving the stability of the No. 1 motor 6 when moving horizontally.

[0027] There are two hooks 9, which are symmetrically distributed with the filter screen 12 as the axis of symmetry. By setting the hooks 9, when the lifting frame 13 needs to be lifted, the hooks 9 are sleeved inside the lifting frame 13, so that the hooks 9 can connect the steel cable 8 to the lifting frame 11 through the retaining ring 14, thereby achieving the fixed connection effect of the steel cable 8, which brings convenience to the lifting of the filter screen 12.

[0028] The cleaning mechanism 16 includes a water tank 161, which is fixedly connected to one side of the top of the support platform 1. A water pump 162 is fixedly installed on the top of the water tank 161, and a water pipe 163 is fixedly connected to the top of the water pump 162. A high-pressure nozzle 164 is fixedly connected to one end of the water pipe 163. By setting up the cleaning mechanism 16, when rinsing the impurities inside the filter screen 12, the filter screen 12 is placed inside the cleaning tank 15. At this time, the water pump 162 is started, so that the water pump 162 can draw water from the water tank 161 and spray it into the filter screen 12 through the water pipe 163 and the high-pressure nozzle 164. This allows the impurities inside the filter screen 12 to be flushed into the cleaning tank 15, thereby achieving the cleaning effect of the filter screen 12 and bringing convenience to the cleaning of impurities in the passivation solution.

[0029] The adjustment mechanism 17 includes a second motor 171, which is fixedly installed on the side of the limiting sleeve 4. A threaded post 172 is fixedly connected to the output shaft of the second motor 171, and the threaded post 172 is threadedly sleeved inside the sliding block 5. By setting the adjustment mechanism 17, when the steel cable 8 pulls the filter screen 12 out of the passivation box 10, the second motor 172 is started, so that the second motor 172 can drive the sliding block 5 to move horizontally through the threaded post 172, that is, drive the winding wheel 7 to move horizontally through the first motor 6, thereby driving the filter screen 12 to move horizontally, thus achieving the effect of adjusting the position of the filter screen 12.

[0030] There are several sliding balls 18, which are evenly distributed at the bottom of the inner cavity of the limiting sleeve 4. By setting the sliding balls 18, when the sliding block 5 drives the first motor 6 to move horizontally, the sliding balls 18 can support and limit the horizontally moving sliding block 5, thereby avoiding the problem of friction between the sliding block 5 and the bottom of the inner cavity of the limiting sleeve 4 when it moves horizontally, thus improving the smoothness of the horizontal movement of the sliding block 5.

[0031] The moving mechanism 19 includes a support column 191, which is fixedly connected to the bottom of the support platform 1. A sliding wheel 192 is installed at the bottom of the support column 191. By setting up the moving mechanism 19, when the filter device is moved and transported, the support platform 1 is pushed, so that the sliding wheel 192 can drive the support platform 1 to move horizontally through the support column 191, that is, drive the passivation box 10 to move horizontally, thereby achieving the effect of moving and transporting the filter device, and thus bringing convenience to the adjustment of the working position of the filter device.

[0032] The working principle of the filter device for passivation treatment of galvanized steel pipes provided by this utility model is as follows:

[0033] Step 1: First, during the passivation treatment of the steel pipe, the steel pipe and passivation liquid are injected into the passivation tank 10. When the passivation treatment is completed, motor 6 is started, which drives the steel cable 8 to wind up via the winding wheel 7. This winds up the filter screen 12 via the lifting frame 11, allowing the filter screen 12 to carry impurities from inside the passivation tank 10. The filter screen 12 is then moved into the cleaning tank 15, where the cleaning liquid washes away the impurities, thus achieving the filtration effect of the passivation liquid and improving its recycling efficiency. When the sliding block 5 drives the winding wheel 7 to move horizontally, the limiting sleeve 4 limits the horizontal movement of the sliding block 5, preventing tilting when the sliding block 5 drives motor 6 to move horizontally. The problem of slant offset is solved, thereby improving the stability of motor 6 when moving horizontally. When the lifting frame 13 needs to be lifted, the hook 9 is sleeved inside the lifting frame 13, so that the hook 9 can connect the steel cable 8 to the lifting frame 11 through the retaining ring 14, thereby achieving the fixed connection effect of the steel cable 8, which brings convenience to the lifting of the filter screen 12. When washing the impurities inside the filter screen 12, the filter screen 12 is placed inside the cleaning tank 15. At this time, the water pump 162 is started, so that the water pump 162 can draw water from the water tank 161, and then spray it into the filter screen 12 through the water pipe 163 and the high-pressure nozzle 164, so that the impurities inside the filter screen 12 can be washed into the cleaning tank 15, thereby achieving the cleaning effect of the filter screen 12, which brings convenience to the cleaning of impurities in the passivation liquid.

[0034] Step 2: When the steel cable 8 pulls the filter screen 12 out of the passivation box 10, the second motor 172 is started, which drives the sliding block 5 to move horizontally through the threaded column 172. This, in turn, drives the winding wheel 7 to move horizontally through the first motor 6, thereby moving the filter screen 12 horizontally. This achieves the effect of adjusting the position of the filter screen 12. When the sliding block 5 drives the first motor 6 to move horizontally, the sliding ball 18 supports and limits the horizontal movement of the sliding block 5, avoiding friction between the sliding block 5 and the bottom of the inner cavity of the limiting sleeve 4. This improves the smoothness of the horizontal movement of the sliding block 5. When the filter device is moved and transported, the support platform 1 is pushed, which allows the sliding wheel 192 to drive the support platform 1 to move horizontally through the support column 191. This, in turn, drives the passivation box 10 to move horizontally, achieving the effect of moving and transporting the filter device. This also facilitates the adjustment of the working position of the filter device.

[0035] Compared with related technologies, the filter device for passivation treatment of galvanized steel pipes provided by this utility model has the following beneficial effects:

[0036] By setting up a filter screen 12, when the steel pipe is passivated, the steel pipe and passivation liquid are injected into the passivation box 10. When the passivation process is finished, the first motor 6 is started, which drives the steel cable 8 to wind up through the winding wheel 7. This winds up the filter screen 12 through the lifting frame 11, allowing the filter screen 12 to carry the impurities inside the passivation liquid out of the passivation box 10. At this time, the filter screen 12 is moved into the cleaning box 15, where the cleaning liquid washes the impurities inside the filter screen 12 into the cleaning box 15, thus achieving the filtration effect of the passivation liquid and improving the recycling effect of the passivation liquid.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A filtering device for the passivation of galvanized steel pipes, comprising a support table (1), characterized in that: The top of the support table (1) is fixedly connected with a bearing column (2), the top of the bearing column (2) is fixedly connected with a top plate (3), the top of the top plate (3) is fixedly connected with a limiting sleeve (4), the inside of the limiting sleeve (4) movably sleeves a sliding block (5), the bottom of the sliding block (5) is fixedly installed with a first motor (6), the output shaft of the first motor (6) movably sleeves a winding wheel (7), the inside of the winding wheel (7) fixedly sleeves a steel cable (8), one end of the steel cable (8) is fixedly connected with a hook (9), the top of the support table (1) is fixedly connected with a passivation box (10), the inside of the passivation box (10) movably sleeves a lifting frame (11), the inside of the lifting frame (11) fixedly sleeves a filter screen (12), the top of the lifting frame (11) is fixedly connected with a lifting frame (13), the top of the lifting frame (13) is fixedly connected with a clamping ring (14), the top of the support table (1) is fixedly connected with a cleaning box (15), the top of the support table (1) is provided with a cleaning mechanism (16), the side of the limiting sleeve (4) is provided with an adjusting mechanism (17), the inside of the limiting sleeve (4) movably sleeves a sliding ball (18), the bottom of the support table (1) is provided with a moving mechanism (19).

2. The filtering device for passivation treatment of a galvanized steel pipe according to claim 1, characterized in that, The filter screen (12) is located directly below the winding wheel (7), and the material of the filter screen (12) is glass fiber material.

3. The filtering device for passivation treatment of a galvanized steel pipe according to claim 1, characterized in that, The limiting sleeve (4) is located directly above the top plate (3), and the limiting sleeve (4) is matched with the sliding block (5).

4. The filtering device for passivation treatment of a galvanized steel pipe according to claim 1, characterized in that, The number of the hook (9) is two, and the two hooks (9) are symmetrically distributed with the filter screen (12) as the axis of symmetry.

5. The filtering device for passivation treatment of a galvanized steel pipe according to claim 1, characterized in that, The cleaning mechanism (16) comprises a water tank (161), the water tank (161) is fixedly connected to one side of the top of the support table (1), the top of the water tank (161) is fixedly installed with a water pump (162), the top of the water pump (162) fixedly sleeves a water pipe (163), one end of the water pipe (163) fixedly sleeves a high-pressure spray head (164).

6. The filtering device for passivation treatment of a galvanized steel pipe according to claim 1, characterized in that, The adjusting mechanism (17) comprises a second motor (171), the second motor (171) is fixedly installed on the side of the limiting sleeve (4), the output shaft of the second motor (171) is fixedly connected with a threaded column (172), the threaded column (172) is threadedly sleeved in the inside of the sliding block (5).

7. The filtering device for passivation treatment of a galvanized steel pipe according to claim 1, characterized in that, The number of the sliding ball (18) is several, and the several sliding balls (18) are evenly distributed on the bottom of the inside of the limiting sleeve (4).

8. The filtering device for passivation treatment of a galvanized steel pipe according to claim 1, characterized in that, The moving mechanism (19) comprises a support column (191), the support column (191) is fixedly connected to the bottom of the support table (1), the bottom of the support column (191) is installed with a sliding wheel (192).

Images