A pickling draining device for stainless steel

Abstract

The utility model relates to a pickling draining device for stainless steel, including placing part and collection box, the placing part is located above collection box and is provided with collection cavity in collection box, still including the reaction box of being located below collection box and the detachable connection of collection box, the bottom of collection box is provided with through groove and the placing part rotation is installed in collection box and is provided with a plurality of filter holes in bottom, be provided with the reaction cavity that communicates with through groove in the reaction box and be provided with refrigeration element in the reaction cavity, the left and right sides of reaction chamber are all provided with collection mouth and are provided with baffle in collection mouth swing installation, adopt above -mentioned scheme, provide a kind of pickling draining device for stainless steel by making pickling solution remaining in the inner wall of steel pipe fall and enter reaction chamber to crystallize under the action of refrigeration element.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing, and in particular to a pickling and draining device for stainless steel. Background Technology

[0002] During the manufacturing and processing of steel pipes, pickling is often required to remove oxide scale, rust, and other impurities from their surface in order to improve the quality of subsequent treatments (such as galvanizing, phosphating, and coating). Pickling usually involves immersion or spraying with strong acid solutions such as sulfuric acid and hydrochloric acid. However, after pickling, a large amount of acid remains on the surface of the steel pipe, which not only affects the quality of subsequent processes but also causes resource waste and environmental pollution.

[0003] To address this issue, the industry currently widely employs draining devices to perform preliminary dehydration treatment on pickled steel pipes. Common draining methods include natural dripping, rotary spin drying, and compressed air purging. While these methods can reduce the amount of residual liquid on the surface of the steel pipe to some extent, they are not universally applicable.

[0004] However, most traditional dewatering devices only have the function of physical dripping and fail to effectively collect and reuse the dripping acid liquid, resulting in serious acid loss, increased production costs, and direct discharge or accumulation of untreated waste acid liquid, which can easily cause soil and water pollution. In addition, some acid mist volatilization will also affect the air quality in the workshop.

[0005] Therefore, how to collect pickling solution has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a pickling and draining device for stainless steel that allows the pickling solution remaining on the inner wall of the steel pipe to fall into the reaction tank and crystallize under the action of the cooling element.

[0007] To achieve the above objectives, the present invention provides the following technical solution: It includes a placement part and a collection box. The placement part is located above the collection box, and a collection chamber is provided inside the collection box. It also includes a reaction box located below the collection box and detachably connected to it. The bottom of the collection box has a passage groove, and the placement part is rotatably mounted on the collection box and has several filter holes at its bottom. The reaction box has a reaction chamber communicating with the passage groove, and a cooling element is located inside the reaction chamber. Collection ports are provided on both the left and right sides of the reaction chamber, and baffles are movably installed at the collection ports.

[0008] The present invention is further configured such that: the placement part includes a filter plate and a placement box, and the placement box is provided with a plurality of placement slots, each placement slot being a cylindrical shape that is inclined from top to bottom and from right to left.

[0009] The present invention is further configured such that: the filter plate includes a plurality of filter holes, each filter hole is located below a corresponding placement slot and is interconnected with the corresponding placement slot, and the filter plate is detachably connected to the placement box.

[0010] The present invention is further configured such that: the filter plate is provided with through holes between adjacent filter holes and each through hole is connected to the reaction chamber.

[0011] The present invention is further configured as follows: it also includes a swing arm, the placement box is provided with a horizontal bar that is slidably installed on the collection box, the collection box is provided with vertical bars that are rotatably connected to the horizontal bar on both the left and right sides of the horizontal bar, and mounting plates that are fixed to the collection box, a motor is fixedly installed on the front side of the collection box, a cooperating rod is fixedly installed on the output shaft of the motor, one end of the swing arm is fixed to the right vertical bar and the other end is fixedly connected to the cooperating rod.

[0012] The present invention is further configured such that: the reaction chamber includes a left guide surface and a right guide surface located inside the reaction chamber; the left guide surface is inclined from top to bottom and from right to left; the right guide surface is inclined from top to bottom and from left to right; each baffle is rotatably connected to the reaction chamber; and each baffle is provided with a force-applying groove.

[0013] The present invention is further configured such that: a first magnet is provided on the top of each baffle, and a second magnet is provided in the reaction chamber corresponding to each first magnet.

[0014] By adopting the above technical solution, 1. the integration of pickling solution draining and waste disposal is achieved. The steel pipes to be drained are placed in the placement section. Over time, under the action of gravity, the waste sulfuric acid can flow downwards from the inner wall of the steel pipe through the filter holes and through the channel into the reaction tank. As the refrigeration element is activated and the temperature drops, the waste sulfuric acid begins to crystallize and precipitate. The collected crystals can be removed by opening the collection port, thus reducing the loss of acid. 2. Due to the presence of filter holes, if there are large particles of impurities on the inner wall of the steel pipe, they will be restricted by the filter holes during the downward movement and will not be able to flow downwards into the reaction chamber of the reaction tank, thus reducing the possibility of impurities in the waste sulfuric acid during crystallization. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an assembly drawing illustrating a specific embodiment of the present utility model;

[0017] Figure 2 This is an exploded view of the front view of this utility model;

[0018] Figure 3 This is an exploded view of the present invention from a top-down perspective;

[0019] Figure 4 This is a cross-sectional view of the present invention in its explosive state.

[0020] In the diagram: 1-Placement section, 11-Placement box, 111-Placement slot, 112-Horizontal bar, 12-Filter plate, 121-Filter hole, 122-Through hole;

[0021] 2-Collection box, 21-Collection chamber, 22-Passway, 23-Vertical rod, 24-Mounting plate, 25-Motor, 251-Output shaft, 26-Matching rod;

[0022] 3-Reaction chamber, 31-Collection port, 32-Baffle, 321-Force application groove, 322-First magnet, 33-Left guide surface, 34-Right guide surface, 35-Second magnet, 36-Reaction chamber;

[0023] 4-Swing arm. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4As shown, this utility model discloses a pickling and draining device for stainless steel, including a placement part 1 and a collection box 2. The placement part 1 is located above the collection box 2, and the collection box 2 is provided with a collection chamber 21. It also includes a reaction box 3 located below the collection box 2 and detachably connected to the collection box 2. The bottom of the collection box 2 is provided with a through groove 22, and the placement part 1 is rotatably mounted on the collection box 2 and has a plurality of filter holes 121 at the bottom. The reaction box 3 is provided with a reaction chamber 36 communicating with the through groove 22, and a cooling element (not shown in the figure, but its principle and wiring are not described in detail here as it is prior art) is provided in the reaction chamber 3. The reaction box 3 is provided with collection ports 31 on both the left and right sides of the reaction chamber 36, and baffles are movably installed at the collection ports 31. Plate 32, 1. It realizes the integration of pickling solution draining and waste material processing. The steel pipe that needs to be drained after pickling is placed in the placement part 1. Over time, under the action of gravity, the waste sulfuric acid can enter the reaction tank 3 from the inner wall of the steel pipe through the filter hole 121 and the channel 22. As the refrigeration element is activated, the waste sulfuric acid begins to crystallize and precipitate as the temperature drops. The collected crystals can be taken out by opening the collection port 31, thereby reducing the loss of acid solution; 2. Due to the existence of each filter hole 121, if there are large particles of impurities on the inner wall of the steel pipe, they will be restricted by the filter holes 121 during the downward movement and will not be able to flow downward into the reaction chamber 36 of the reaction tank 3, thereby reducing the possibility of impurities in the waste sulfuric acid crystallization process.

[0026] The placement section 1 includes a filter plate 12 and a placement box 11. The placement box 11 is provided with a plurality of placement slots 111. Each placement slot 111 is a cylindrical shape that is inclined from top to bottom and from right to left. Since each placement slot 111 is inclined, during the process of placing the steel pipe into the placement slot 111 to achieve drainage, the inclined design is conducive to the waste sulfuric acid on the inner wall of the steel pipe dripping downwards, thereby improving the drainage efficiency.

[0027] The filter plate 12 includes a plurality of filter holes 121, each of which is located below and connected to the corresponding placement groove 111. The filter plate 12 is detachably connected to the placement box 11, so the waste sulfuric acid falling downwards can smoothly pass through the placement groove 111 and flow towards the filter holes 121 and then from the passage groove 22 towards the reaction chamber 36. At the same time, since the filter plate 12 is detachable from the placement box 11, if there are impurities on the drained steel pipe, they will be affected by the filter holes 121 as the waste sulfuric acid falls downwards. Therefore, after the collection box 2 is removed, the filter plate 12 can be removed and cleaned.

[0028] Preferably, the filter plate 12 is provided with through holes 122 between adjacent filter holes 121 and each through hole 122 is connected to the reaction chamber 36. Therefore, during the process of draining each steel pipe in the placement tank 111, the waste sulfuric acid dripping from the steel pipe can move down through the filter holes 121 and also drip down through the through holes 122 into the reaction chamber 36. Therefore, the setting of the through holes 122 improves the efficiency of the waste sulfuric acid dripping down.

[0029] The system also includes a swing arm 4. The placement box 11 has a forward-protruding horizontal bar 112 that slides onto the collection box 2. The collection box 2 has vertical bars 23 rotatably connected to the horizontal bar 112 on both the left and right sides, as well as mounting plates 24 fixed to the collection box 2. A motor 25 is fixedly mounted on the front of the collection box 2. A cooperating rod 26 is fixedly mounted on the output shaft 251 of the motor 25. One end of the swing arm 4 is fixed to the right vertical bar 23, and the other end is fixedly connected to the cooperating rod 26. The system is activated by starting the motor. 25. At this time, the output shaft 251 of the motor 25 will drive the mating rod 26 to rotate. As the mating rod 26 rotates, it can drive the swing rod 4 to move. As the swing rod 4 moves, it can drive the right vertical rod 23 to rotate, which in turn drives the horizontal rod 112 to move. Since the horizontal rod 112 is fixed to the placement box 11, the movement of the horizontal rod 112 can drive the placement box 11 to swing inside the collection box 2. At this time, the steel pipes located inside the collection box 2 can more efficiently make the waste sulfuric acid attached to the inner wall drip downwards as the placement box 11 swings.

[0030] Furthermore, the reaction chamber 3 includes a left guide surface 33 and a right guide surface 34 located within the reaction chamber 36. The left guide surface 33 is inclined from top to bottom and from right to left, and the right guide surface 34 is inclined from top to bottom and from left to right. Each baffle 32 is rotatably connected to the reaction chamber 3, and each baffle 32 is provided with a force-applying groove 321. This allows the waste sulfuric acid in the reaction chamber 36 to be cooled after the cooling element is activated. As the waste sulfuric acid drips downwards, it moves downwards along the inclined direction of the left guide surface 33 and the right guide surface 34, with its inclined end close to the collection port 31. This causes the obtained solid crystals to adhere to the left guide surface 33 and the right guide surface 34, thus facilitating their removal after crystallization.

[0031] Preferably, each baffle 32 is provided with a first magnet 322 at its top, and the reaction chamber 3 is provided with a second magnet 35 corresponding to each first magnet 322. When it is not necessary to remove the waste sulfuric acid crystals located in the reaction chamber 36, the first magnet 322 and the second magnet 35 at each outlet baffle 32 are attracted together, so that the waste sulfuric acid will not splash out of each baffle 32 when it is tilted downwards along the inclined direction of the left guide surface 33 and the right guide surface 34. After the waste sulfuric acid has cooled and crystallized, the first magnet 322 and the second magnet 35 are separated, and the baffle 32 can be rotated downwards to facilitate the removal of the crystallized waste sulfuric acid.

[0032] In addition, a sealing ring can be installed between the baffle 32 and the reaction tank 3 to further prevent leakage when waste sulfuric acid falls.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pickling and draining device for stainless steel, comprising a placement section and a collection box, wherein the placement section is located above the collection box and the collection box is provided with a collection chamber, characterized in that: It also includes a reaction chamber located below the collection box and detachably connected to the collection box. The bottom of the collection box is provided with a through groove and the placement part is rotatably installed in the collection box and has several filter holes at the bottom. The reaction chamber is provided with a reaction chamber communicating with the through groove and a cooling element is provided in the reaction chamber. The reaction chamber is provided with collection ports on both the left and right sides of the reaction chamber and baffles are movably installed at the collection ports.

2. The pickling and draining apparatus for stainless steel according to claim 1, characterized in that: The placement section includes a filter plate and a placement box. The placement box is provided with a number of placement slots, each of which is a cylindrical shape that is inclined from top to bottom and from right to left.

3. The pickling and draining apparatus for stainless steel according to claim 2, characterized in that: The filter plate includes a plurality of filter holes, each filter hole being located below a corresponding placement slot and communicating with the corresponding placement slot. The filter plate is detachably connected to the placement box.

4. The pickling and draining apparatus for stainless steel according to claim 3, characterized in that: The filter plate has through holes between adjacent filter holes, and each through hole is connected to the reaction chamber.

5. The pickling and draining apparatus for stainless steel according to claim 2, characterized in that: It also includes a swing arm, and the placement box has a horizontal bar that is slidably installed on the collection box. The collection box has vertical bars that are rotatably connected to the horizontal bar on both the left and right sides of the horizontal bar, as well as mounting plates that are fixed to the collection box. A motor is fixedly installed on the front side of the collection box, and a matching rod is fixedly installed on the output shaft of the motor. One end of the swing arm is fixed to the vertical bar on the right side, and the other end is fixedly connected to the matching rod.

6. The pickling and draining apparatus for stainless steel according to claim 1, characterized in that: The reaction chamber includes a left guide surface and a right guide surface located inside the reaction cavity. The left guide surface is inclined from top to bottom and from right to left, and the right guide surface is inclined from top to bottom and from left to right. Each baffle is rotatably connected to the reaction chamber, and each baffle is provided with a force-applying groove.

7. The pickling and draining apparatus for stainless steel according to claim 6, characterized in that: Each baffle is equipped with a first magnet at its top, and the reaction chamber is equipped with a second magnet corresponding to each first magnet.

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