Detachable zinc dross filtering device for hot galvanizing

Abstract

The invention relates to the technical field of hot galvanizing, in particular to a detachable zinc dross filtering device for hot galvanizing, which comprises a hot galvanizing tank and further comprises a guide collecting mechanism, the guide collecting mechanism comprises a collecting assembly and a guide pushing assembly, the collecting assembly comprises two trapezoidal filtering boxes arranged in the hot galvanizing tank in a sliding manner, and the two side walls of each trapezoidal filtering box are inclined planes; the guiding and pushing assembly comprises two guiding frames movably installed between the two trapezoidal filtering boxes, and the guiding frames rotate in the direction of the trapezoidal filtering boxes close to the guiding frames when moving to one side of the hot dipping pool. The two trapezoidal filtering boxes are arranged to slide in the hot-dip tank, zinc slag is shoveled up and pushed to the edge of the hot-dip tank through the inclined faces of the trapezoidal filtering boxes in the sliding process, and then the stacked zinc slag is pushed to the tops of the trapezoidal filtering boxes through the scraping plates to be collected; and the deslagging quality and efficiency are further improved, and the trapezoidal filter box can be rapidly erected through the positioning assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of hot-dip galvanizing, and particularly relates to a detachable zinc slag filtering device for hot-dip galvanizing. Background Art

[0002] The methods for salvaging hot-dip galvanized zinc slag can be divided into three categories: traditional manual slag salvaging, mechanical-assisted slag salvaging, and electromagnetic separation technology, combined with the requirements of different production scenarios. Among them, the traditional manual slag salvaging method requires heating the zinc liquid temperature to 450 - 560 °C before slag salvaging to fully separate the zinc slag from the zinc liquid, and manually salvaging the floating slag or bottom slag, which is applicable to small zinc pots. While the mechanical-assisted slag salvaging uses an automatic slag salvaging machine, which is equipped with a high-temperature resistant alloy slag ladle, a lifting mechanism, and a slag hopper, and realizes timed and quantitative slag salvaging through PLC control. Due to the structure of the high-temperature resistant alloy slag ladle, there are dead corners, and multiple salvagings are required, resulting in low slag salvaging efficiency. Moreover, the automatic slag salvaging machine is large in size and not easy to operate. Summary of the Invention

[0003] Aiming at the above-mentioned disadvantages of the prior art, the present invention provides a detachable zinc slag filtering device for hot-dip galvanizing, which can effectively solve the problem of low slag salvaging efficiency of the slag salvaging machine in the prior art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0005] The present invention provides a detachable zinc slag filtering device for hot-dip galvanizing, including a hot-dip plating bath, and further including:

[0006] A guiding and collecting mechanism for concentrating and collecting zinc slag inside the hot-dip plating bath, including a collecting component and a guiding and pushing component. The collecting component includes two trapezoidal filter boxes slidably arranged in the hot-dip plating bath, and the two trapezoidal filter boxes are closely attached to the side walls of the hot-dip plating bath. The two side walls of the trapezoidal filter box are inclined planes;

[0007] The guiding and pushing component includes two guiding racks movably installed between the two trapezoidal filter boxes. When the guiding rack moves to one side of the hot-dip plating bath, it rotates towards the trapezoidal filter box closer to it;

[0008] A positioning component for fixing the guiding and collecting mechanism on the hot-dip plating bath.

[0009] Further, the positioning component includes two guiding racks arranged on the two symmetric outer side walls of the hot-dip plating bath. Two sliding racks are slidably installed on the two guiding racks. A telescopic rack is commonly installed between the outer side walls of the two sliding racks close to each other. Two movable racks are slidably installed on the bottom wall of the telescopic rack. The trapezoidal filter box is installed on the bottom wall of the movable rack.

[0010] Further, a vertical plate is installed at the center of the telescopic rack, and a first elastic rod is connected between the vertical plate and the outer walls of the two sliding racks.

[0011] Further, the positioning component further includes two positioning frames slid on the same guiding frame. By sliding the positioning frames, they are closely attached to the outer wall of the hot-dip plating bath. A second elastic rod is connected between the two positioning frames on the outer wall of the same side of the hot-dip plating bath, which are extruded.

[0012] Further, the collecting component further includes a scraping frame slid up and down on the side wall of the sliding frame. The bottom wall of the sliding frame is inclined, and the slope of this inclined surface is the same as the slope of the inclined surface of the trapezoidal filter box. When the scraping frame approaches the movable frame, its bottom wall slides along the inclined surface of the trapezoidal filter box.

[0013] Further, a chute is provided on the side wall of the sliding frame, and a slider adapted to the chute is provided on the scraping frame. When the scraping frame is moved up to the highest position, the slider is limited, and when the trapezoidal filter box slides to the corner of the hot-dip plating bath, the scraping frame moves down and lands at the lowest position of the trapezoidal filter box.

[0014] Further, a limiting groove communicating with the chute is provided on one side of the sliding frame. A limiting block is elastically installed in the limiting groove. A limiting hole adapted to the limiting block is provided on the slider. A return spring is connected between the limiting block and the inner wall of the limiting groove. The limiting block is connected with a right-angle rod.

[0015] Further, the guiding and pushing component further includes a right-angle sliding rod slidably installed on the side wall of the movable frame. The guiding frame is rotatably installed on the right-angle sliding rod. Two transmission blocks are fixedly installed on the top wall of each guiding frame. A triangular block is provided on the second elastic rod. The guiding frame is driven to rotate by squeezing the transmission block with the triangular block.

[0016] Further, the guiding frame is an obtuse-angle plate.

[0017] Further, the positioning frame includes a vertical rod. A clamping plate is provided on one side of the vertical rod. An installation plate is provided on one side of the vertical rod. A positioning bolt is threadedly installed on the installation plate.

[0018] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0019] By arranging two trapezoidal filter boxes to slide in the hot-dip plating bath, during the sliding process, the zinc slag is shoveled up by its inclined surface and pushed to the edge of the hot-dip plating bath. Then, the accumulated zinc slag is pushed to the top of the trapezoidal filter box for collection by the scraping plate. Secondly, guiding frames are provided for the two trapezoidal filter boxes, which further improves the quality and efficiency of slag removal. The trapezoidal filter box can be quickly erected through the positioning component. Description of the Drawings

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Overall schematic diagram of the present invention;

[0022] Figure 2 Structural schematic diagram of the guiding and collecting mechanism part;

[0023] Figure 3 Top view between the scraping frame and the sliding frame;

[0024] Figure 4 Structural schematic diagram of the limiting block part;

[0025] Figure 5 Moving state diagram of the scraping frame;

[0026] Figure 6 Structural schematic diagram of the material guiding frame part;

[0027] Figure 7 For Figure 2 Top view;

[0028] Figure 8 Moving state diagram of the material guiding frame when being squeezed by the triangular block.

[0029] The reference numerals in the figures respectively represent: 1, hot-dip plating bath; 2, guiding frame; 3, sliding frame; 4, telescopic frame; 5, movable frame; 6, trapezoidal filter box; 7, scraping frame; 8, positioning frame; 9, limiting groove; 10, limiting block; 11, right-angle rod; 12, return spring; 13, first elastic rod; 14, right-angle sliding rod; 15, material guiding frame; 16, transmission block; 17, second elastic rod; 18, triangular block; 19, support member. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] The following further describes the present invention in combination with embodiments.

[0032] Embodiment 1

[0033] A detachable zinc slag filtering device for hot-dip galvanizing, refer to Figure 1 , including a hot-dip plating bath 1, and further including a guiding and collecting mechanism for concentrating and collecting zinc slag inside the hot-dip plating bath 1. This mechanism includes a collecting component. As Figure 2 shown, the collecting component includes two trapezoidal filter boxes 6 slidably arranged in the hot-dip plating bath 1, and the two trapezoidal filter boxes 6 are closely attached to the side walls of the hot-dip plating bath 1. The two side walls of the trapezoidal filter box 6 are inclined planes. The collecting component further includes a scraping rack 7 slidably mounted on the side wall of the sliding rack 3. The bottom wall of the sliding rack 3 is an inclined plane, and the slope of this inclined plane is the same as the slope of the inclined plane of the trapezoidal filter box 6 (as Figure 5 shown). When the scraping rack 7 approaches the movable rack 5, its bottom wall slides along the inclined plane of the trapezoidal filter box 6. A chute is provided on the side wall of the sliding rack 3, and a slider adapted to the chute is provided on the scraping rack 7. When the scraping rack 7 moves up to the highest position, the slider is limited. And when the trapezoidal filter box 6 slides to the corner of the hot-dip plating bath 1, the scraping rack 7 moves down and lands at the lowest position of the trapezoidal filter box 6. A limiting groove 9 communicating with the chute is provided on one side of the sliding rack 3. A limiting block 10 is elastically mounted in the limiting groove 9. A limiting hole adapted to the limiting block 10 is provided on the slider. A return spring 12 is connected between the limiting block 10 and the inner wall of the limiting groove 9. The limiting block 10 is connected with a right-angle rod 11.

[0034] Place the guiding and collecting mechanism in the hot-dip plating bath 1, and drive the sliding rack 3 to slide along the guiding rack 2 through an external driving member. This driving member can be an electric push rod or other components.

[0035] As Figure 2 shown, during the sliding process, the trapezoidal filter box 6 looks like a trapezoid when viewed from its side, and its two sides are inclined planes. During the sliding process, it can shovel up the encountered zinc slag and push it towards the edge of the hot-dip plating bath 1 until the trapezoidal filter box 6 slides to the edge of the hot-dip plating bath 1. The zinc slag along the way accumulates at the edge of the hot-dip plating bath 1. At this time, the positioning frame 8 will squeeze the right-angle rod 11. The right-angle rod 11 is pushed to compress the return spring 12, and the limiting block 10 will be pushed out of the limiting hole of the slider. At this time, the slider loses the limiting effect of the limiting block 10, and the scraping rack 7 falls to the lowest position of the trapezoidal filter box 6 under its own gravity (such as Figure 5 the change process of the first two state diagrams in), then, the driving member drives the sliding rack 3 to slide in the reverse direction. The telescopic frame 4 between the two sliding racks 3 is slidably connected to the movable rack 5, that is, the sliding rack 3 and the trapezoidal filter box 6 can slide relative to each other. As Figure 5 shown in the change process of the last two state diagrams in, the scraping rack 7 slides along the inclined plane of the trapezoidal filter box 6 and will gradually move up during the sliding process until it slides to the highest position, as Figure 4As shown, one side of the limit block 10 is provided with an inclined surface. By squeezing the inclined surface, the limit block 10 can be clamped again in the limit hole. Subsequently, the sliding frame 3 continues to slide in the other direction to filter and clean the zinc slag on the other side.

[0036] To facilitate the removal of zinc slag, a positioning component is provided for fixing the guiding and collecting mechanism on the hot-dip plating bath 1. This component includes two guiding frames 2 arranged on the two symmetric outer side walls of the hot-dip plating bath 1. A sliding frame 3 is slidably installed on each of the two guiding frames 2. A telescopic frame 4 is commonly installed between the outer walls on the side where the two sliding frames 3 are close to each other (as the name implies, the telescopic frame 4 has a telescopic function, similar to a telescopic rod on the market, and its main function is to adjust the distance between the two sliding frames 3). A vertical plate is installed at the center of the telescopic frame 4. First elastic rods 13 are connected between the vertical plate and the outer walls of the two sliding frames 3. Two movable frames 5 are slidably installed on the bottom wall of the telescopic frame 4. A trapezoidal filter box 6 is installed on the bottom wall of the movable frame 5. The positioning component further includes two positioning frames 8 sliding on the same guiding frame 2. The positioning frame 8 includes a vertical rod. A clamping plate is provided on one side of the vertical rod, and a mounting plate is provided on one side of the vertical rod. A positioning bolt is threadedly installed on the mounting plate. By sliding the positioning frame 8 to closely adhere to the outer wall of the hot-dip plating bath 1, a second elastic rod 17 is connected between the two positioning frames 8 on the outer wall of the same side of the hot-dip plating bath 1.

[0037] It should be noted that before installing the above-mentioned guiding and collecting mechanism, it is necessary to manually push the zinc slag deposited in the central area of the hot-dip plating bath 1 to the edge. Because the above-mentioned guiding and collecting mechanism needs to be placed into the hot-dip plating bath 1 from top to bottom, and its bottom will press the zinc slag at this position, so it needs to be cleaned in advance. An alloy push plate can be used to push the accumulated zinc slag at the bottom of the zinc liquid, and then the guiding and collecting mechanism is placed there.

[0038] A support member 19 is provided on the bottom wall of the guiding frame 2. As Figure 2 shown, some universal wheels (not shown in the figure) can be provided at the bottom end of the support member 19 for moving the entire guiding and collecting mechanism. Or the support member 19 can be set to be fixed, that is, immovable. At this time, it is necessary to lift the entire guiding and collecting mechanism through a gantry or the like and move it to the hot-dip plating bath 1. However, compared with this, the method using universal wheels is more convenient and has lower cost. This moving method requires the support member 19 to be an electric push rod or other equipment for lifting the guiding frame 2 so that the trapezoidal filter box 6 can cross the top of the hot-dip plating bath 1.

[0039] Specifically, the two guiding frames 2 slide to the two symmetrical outer walls of the hot-dip plating bath 1 respectively. The two guiding frames 2 are connected by two groups of positioning frames 8, and a second elastic rod 17 is arranged between the adjacent positioning frames 8 to adapt to hot-dip plating baths 1 of different sizes. By sliding the positioning frames 8 to closely adhere to the side wall of the hot-dip plating bath 1 and positioning the positioning frames 8 (the positioning method can be set according to the actual situation. In the present invention, positioning bolts are proposed to position the positioning frames 8), the guiding frames 2 are positioned at the side wall of the hot-dip plating bath 1. Subsequently, the subsequent zinc slag filtration is completed by sliding the sliding frame 3.

[0040] Embodiment 2

[0041] To further improve the removal efficiency of zinc slag and for hot-dip plating baths 1 of different sizes, the above-mentioned guiding and collecting mechanism further includes a guiding and pushing component. The guiding and pushing component includes two guiding frames 15 movably installed between the two trapezoidal filter boxes 6. When the guiding frames 15 move to one side of the hot-dip plating bath 1, they rotate towards the closer trapezoidal filter box 6. The guiding and pushing component further includes a right-angled sliding rod 14 slidably installed on the side wall of the movable frame 5. The guiding frames 15 are rotatably installed on the right-angled sliding rod 14. Two transmission blocks 16 are fixedly installed on the top wall of each guiding frame 15. A triangular block 18 is arranged on the second elastic rod 17. The transmission blocks 16 are driven to rotate by squeezing the triangular block 18. The guiding frames 15 are obtuse plates (formed by splicing two straight plates or integrally formed, and the included angle between the two straight plates is an obtuse angle).

[0042] Specifically, the right-angled sliding rods 14 are slid on the outer walls of the two adjacent sides of the two movable frames 5. As Figure 6 shown, the guiding frames 15 are arranged on the right-angled sliding rods 14. The two guiding frames 15 are obtuse plates. One side of the two guiding frames 15 is close to each other to form a plate with a triangular shape in a top view. During the sliding process of the trapezoidal filter boxes 6, they will also slide together, guiding the zinc slag between the two trapezoidal filter boxes 6 to the trapezoidal filter boxes 6, and then the trapezoidal filter boxes 6 collect and filter the zinc slag at the edge of the hot-dip plating bath 1.

[0043] It should be noted that the above-mentioned first elastic rod 13 and second elastic rod 17 are both telescopic rods with elastic reset ability, which can be composed of a single telescopic rod and a spring. The spring can be arranged inside or outside the telescopic rod. Of course, it is not limited to other components with the same function.

[0044] It should be noted that, as Figure 7 and Figure 8 shown, a baffle is rotatably installed on one side of the guiding frame 15. The baffle is rotatably connected to the movable frame 5 through a telescopic rod (both ends of the telescopic rod are rotatably connected, and the position adjustment of the baffle is adapted by telescoping), which further improves the effect of the guiding frame 15 in collecting zinc slag.

[0045] During the sliding process of the trapezoidal filter box 6, the transmission block 16 at the upper end of the material guiding frame 15 will be first squeezed by the triangular block 18. As Figure 8 shown, under the squeezing action of the triangular block 18, the two material guiding frames 15 gradually separate, and their rotation directions are as Figure 8 shown. The zinc slag at the bottom of the hot-dip plating bath 1 can be pushed towards the trapezoidal filter box 6 until the outer wall of one side of the material guiding frame 15 is parallel to the side wall of the movable frame 5 (that is, parallel to the side wall of the trapezoidal filter box 6). Under the action of the right-angle slide bar 14, the material guiding frame 15 slides along the movable frame 5 until its side wall is flush with the lowest part of the trapezoidal filter box 6.

[0046] It should be noted that due to the shape of the material guiding frame 15, when one side gradually separates, the other side gradually approaches, which is convenient for the collection and cleaning of the zinc slag on the other side.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detachable zinc dross filtering device for hot-dip galvanizing, including a hot-dip plating bath, characterized in that, Further included are: A guiding and collecting mechanism for concentrating and collecting zinc slag inside the hot-dip plating bath, including a collecting component and a guiding and pushing component. The collecting component includes two trapezoidal filter boxes slidably arranged in the hot-dip plating bath, and the two trapezoidal filter boxes are closely attached to the side wall of the hot-dip plating bath. The two side walls of the trapezoidal filter box are inclined planes. The guiding and pushing component includes two guiding racks movably installed between the two trapezoidal filter boxes. When the guiding rack moves to one side of the hot-dip plating bath, it rotates towards the trapezoidal filter box closer to it. A positioning component for fixing the guiding and collecting mechanism on the hot-dip plating bath.

2. The detachable zinc slag filtering device for hot dip galvanizing according to claim 1, characterized in that, The positioning component includes two guiding racks arranged on the two symmetric outer side walls of the hot-dip plating bath. A sliding rack is slidably installed on each of the two guiding racks. A telescopic rack is commonly installed between the outer side walls of the two sliding racks close to each other. Two movable racks are slidably installed on the bottom wall of the telescopic rack. The trapezoidal filter box is installed on the bottom wall of the movable rack.

3. The detachable zinc slag filtering device for hot-dip galvanizing according to claim 2, characterized in that, A vertical plate is installed at the center of the telescopic rack. A first elastic rod is connected between the vertical plate and the outer walls of the two sliding racks.

4. A detachable zinc slag filtering device for hot-dip galvanizing according to claim 2, characterized in that, The positioning component further includes two positioning racks slid on the same guiding rack. By sliding the positioning racks closely attached to the outer wall of the hot-dip plating bath, a second elastic rod is connected between the two positioning racks on the outer wall of the same side of the hot-dip plating bath.

5. A detachable zinc slag filtering device for hot-dip galvanizing according to claim 1, characterized in that, The collecting component further includes a scraping rack slidably installed on the side wall of the sliding rack. The bottom wall of the sliding rack is an inclined plane, and the slope of this inclined plane is the same as the slope of the inclined plane of the trapezoidal filter box. When the scraping rack approaches the movable rack, its bottom wall slides along the inclined plane of the trapezoidal filter box.

6. The detachable zinc slag filtering device for hot-dip galvanizing according to claim 5, characterized in that, A chute is opened on the side wall of the sliding rack. A slider adapted to the chute is provided on the scraping rack. When the scraping rack moves up to the highest position, the slider is limited. When the trapezoidal filter box slides to the corner of the hot-dip plating bath, the scraping rack moves down and lands at the lowest position of the trapezoidal filter box.

7. A detachable zinc slag filtering device for hot-dip galvanizing according to claim 6, characterized in that, A limiting groove communicating with the chute is opened on one side of the sliding rack. A limiting block is elastically installed in the limiting groove. A limiting hole adapted to the limiting block is opened on the slider. A return spring is connected between the limiting block and the inner wall of the limiting groove. The limiting block is connected with a right-angle rod.

8. A detachable zinc slag filtering device for hot-dip galvanizing according to claim 4, characterized in that, The guiding and pushing component further includes a right-angle sliding rod slidably installed on the side wall of the movable rack. The guiding rack is rotatably installed on the right-angle sliding rod. Two transmission blocks are fixedly installed on the top wall of each guiding rack. A triangular block is provided on the second elastic rod. The guiding rack is driven to rotate by squeezing the transmission block with the triangular block.

9. A detachable zinc slag filtering device for hot-dip galvanizing according to claim 1, characterized in that, The guiding rack is an obtuse-angle plate.

10. A detachable zinc slag filtering device for hot-dip galvanizing according to claim 1, characterized in that, The positioning rack includes a vertical rod. A clamping plate is provided on one side of the vertical rod. An installation plate is provided on one side of the vertical rod. A positioning bolt is threadedly installed on the installation plate.

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