Efficient acid mixing and pickling device for stainless steel pickling line

Abstract

The invention discloses an efficient acid mixing and pickling device for a stainless steel pickling line. The efficient acid mixing and pickling device comprises a conveying belt and a pickling mechanism. The pickling mechanism is arranged between the two conveying belts and comprises a working cabin, a base, a pickling cabin, a cavity, an extension mechanism and the like, the pickling cabin is arranged at the middle end of the top of the working cabin, and a strengthening mechanism is connected to the inner bottom end of the pickling cabin and comprises a threaded rod, a connecting cylinder, an arc-shaped plate, a scraper and the like. The outer side of stainless steel is flapped through an arc-shaped plate, the pickling effect of the stainless steel is improved, the right end of the working cabin is connected with an extension mechanism, the extension mechanism comprises a recovery tank, a supporting frame, a second side plate and other assemblies, and the stainless steel subjected to pickling can be cleaned; and mixed acid liquid remaining on the surface of the stainless steel is removed, and it is avoided that the mixed acid liquid corrodes follow-up machining equipment, influences normal use of the equipment and pollutes the surrounding environment.

Description

Technical Field

[0001] The invention relates to the technical field of pickling, in particular to a high-efficiency mixed acid pickling device for a stainless steel pickling line. Background Art

[0002] Pickling is the process of soaking items in a strong acid solution (such as hydrochloric acid, sulfuric acid, etc.). The corrosiveness of the acid removes some impurities, stains, oxide layers, etc. on the surface of the items, thereby improving the appearance of the items.

[0003] During the production process of stainless steel, it is usually necessary to pickle it to remove pollutants on the surface of the stainless steel, improve its corrosion resistance, improve its surface quality and aesthetics, and facilitate subsequent processing and application.

[0004] Some existing stainless steels are usually pickled by immersion pickling. However, when the stainless steel is taken out of the pickling tank, acid solution may remain on its surface, which may cause corrosion damage to subsequent processing equipment, or affect the surrounding environment, and there are certain safety hazards. Summary of the invention

[0005] The object of the present invention is to provide a high-efficiency mixed acid pickling device for a stainless steel pickling line to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a high-efficiency mixed acid pickling device for a stainless steel pickling line, comprising two sets of movable stainless steel conveyor belts, and also comprising a pickling mechanism arranged between the two sets of conveyor belts;

[0007] The pickling mechanism includes a working cabin, a base, a pickling cabin, a cavity and an expansion mechanism. A working cabin is arranged between the two groups of conveyor belts. A base is arranged at each of the four ends of the bottom surface of the working cabin. A pickling cabin is arranged at the middle end of the top of the working cabin. A cavity is arranged between the pickling cabin and the working cabin. An expansion mechanism is connected to the right end of the working cabin.

[0008] Preferably, a group of side panels 1 are provided at the four ends of the top surface of the working cabin, and a group of guide rollers 1 and 2 are provided between the front and rear groups of side panels 1.

[0009] Preferably, a group of guide rollers three are provided at the left and right bottom ends of the pickling chamber, a group of reinforcement mechanisms are provided between the two groups of guide rollers three, and a group of discharge pipes one is connected to the middle end of the bottom of the pickling chamber, and the bottom end of the discharge pipe one passes through the cavity and the bottom end of the working chamber in sequence and extends to the bottom end of the working chamber.

[0010] Preferably, at least two groups of heating modules are provided on the inner side of the cavity, and a group of motors are provided on the left and right ends of the inner bottom of the cavity. The top end of the driving shaft of the motor extends through the pickling chamber and is connected to a group of paddles.

[0011] Preferably, the strengthening mechanism includes a threaded rod, a second motor, a connecting tube, an arc plate, a connecting splint and a scraper. A group of threaded rods is provided at the middle end of the pickling chamber. The rear end of the threaded rod extends through and extends to the rear end of the pickling chamber and is connected to a group of second motors. A group of connecting tubes is connected to the outside of the threaded rod. No less than two groups of arc plates are evenly spaced outside the connecting tube. A group of connecting splints is connected to the right end of the connecting tube, and a group of scrapers is provided at the bottom end of the connecting splint.

[0012] Preferably, the expansion mechanism includes a recovery trough, two discharge pipes, a support frame and two side panels. A group of recovery troughs are connected to the top right side of the working cabin, a group of discharge pipes are connected to the bottom end of the recovery trough, a group of support frames are provided at the left end of the top of the recovery trough, and a group of side panels are provided at the front and rear ends of the top of the recovery trough.

[0013] Preferably, the support frame is in an inverted "U" shape, and nozzles are provided on the inner top surface and the inner front and back surfaces, and a water pipe corresponding to the nozzle is provided at the inner end of the support frame.

[0014] Preferably, two groups of scrapers are provided at the left ends of the opposing surfaces of the two groups of side panels 2, and two groups of cleaning blocks are provided at the right ends of the opposing surfaces.

[0015] Preferably, the scraper is in a "V" shape, and the front and rear ends of the two groups of cleaning blocks are connected to the opposite surfaces of the two groups of side panels through a slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention uses a pickling mechanism arranged between two groups of conveyor belts. The pickling mechanism includes components such as a working cabin, a base, a pickling cabin, a cavity and an expansion mechanism. A pickling cabin is arranged at the middle end of the top of the working cabin, and stainless steel can be pressed into the pickling cabin for pickling operation.

[0018] The present invention has a reinforcing mechanism arranged at the bottom end of the pickling chamber, and the reinforcing mechanism includes components such as a threaded rod, a connecting tube, an arc plate and a scraper, which can beat the outer side of the stainless steel, separate the oxide scale and rust on the surface, and improve the reaction efficiency between the stainless steel and the mixed acid solution.

[0019] The present invention uses an expansion mechanism arranged at the right end of the working cabin, which includes two components such as a recovery tank, a support frame and a side plate. The expansion mechanism can clean the stainless steel that has completed pickling and remove the mixed acid liquid remaining on the surface of the stainless steel to prevent it from corroding subsequent processing equipment, affecting the normal use of the equipment, and polluting the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view structural schematic diagram of the present invention;

[0021] Figure 2It is a schematic diagram of the internal structure of the pickling mechanism of the present invention;

[0022] Figure 3 It is a schematic diagram of the top view of the strengthening mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the front view structure of the strengthening mechanism of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the expansion mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the top view of the scraper and the cleaning block of the present invention.

[0026] In the figure: conveyor belt 1, pickling mechanism 2, working cabin 21, base 22, pickling cabin 23, cavity 24, expansion mechanism 25, side plate 1-211, guide roller 1-212, guide roller 2-213, guide roller 3-231, strengthening mechanism 232, discharge pipe 1-233, heating module 241, motor 1-242, paddle 243, threaded rod 2321, motor 2-2322, connecting tube 2323, arc plate 2324, connecting splint 2325, scraper 2326, recovery trough 251, discharge pipe 2-252, support frame 253, side plate 2-254, nozzle 2531, water pipe 2532, scraper 2541, cleaning block 2542. DETAILED DESCRIPTION

[0027] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0028] See also Figure 1-2 The present invention provides a stainless steel pickling line high-efficiency mixed acid pickling device, comprising two sets of movable stainless steel conveyor belts 1, and also comprising a pickling mechanism 2 arranged between the two sets of conveyor belts 1;

[0029] The pickling mechanism 2 includes a working cabin 21, a base 22, a pickling cabin 23, a cavity 24 and an expansion mechanism 25. A working cabin 21 is provided between the two conveyor belts 1. A base 22 for supporting and lifting is provided at the four ends of the bottom surface of the working cabin 21. A pickling cabin 23 for pickling operation is provided at the middle end of the top of the working cabin 21. A cavity 24 is provided between the pickling cabin 23 and the working cabin 21. A group of expansion mechanisms 25 are connected to the right end of the working cabin 21.

[0030] A set of side panels 211 are provided at the four ends of the top surface of the working chamber 21, and a set of guide rollers 212 and 213 are provided between the front and rear sets of side panels 211. The left and right sets of guide rollers 212 and 213 are mirror-imaged, which can bend the stainless steel, facilitating the stainless steel to enter and leave the pickling chamber 23.

[0031] See also Figure 2 The present invention provides a high-efficiency mixed acid pickling device for a stainless steel pickling line, wherein a group of guide rollers 231 are provided at the left and right bottom ends of the pickling chamber 23, which can limit the stainless steel so that it can move in the pickling chamber 23, a group of strengthening mechanisms 232 are provided between the two groups of guide rollers 231, and a group of discharge pipes 233 are connected to the middle end of the bottom of the pickling chamber 23, and the bottom ends of the discharge pipes 233 sequentially penetrate the cavity 24 and the bottom end of the working chamber 21 and extend to the bottom end of the working chamber 21, so as to facilitate the discharge of waste.

[0032] See also Figure 2 The present invention provides a high-efficiency mixed acid pickling device for a stainless steel pickling line. At least two groups of heating modules 241 are arranged on the inner side of a cavity 24, which can heat the mixed acid solution in the pickling chamber 23 to improve the reaction efficiency between the mixed acid solution and the stainless steel. A group of motors 242 are arranged on the left and right ends of the inner bottom of the cavity 24. The top end of the driving shaft of the motor 242 extends through the pickling chamber 23 and is connected to a group of paddles 243. The rotation of the driving shaft of the motor 242 can drive the paddles 243 to rotate, thereby stirring the mixed acid solution and improving the reaction effect between the mixed acid solution and the stainless steel.

[0033] See also Figure 2-4 The present invention provides a high-efficiency mixed acid pickling device for a stainless steel pickling line. The strengthening mechanism 232 includes a threaded rod 2321, a second motor 2322, a connecting tube 2323, an arc plate 2324, a connecting clamp 2325 and a scraper 2326. A group of threaded rods 2321 are rotatably connected to the middle end of the pickling chamber 23. The rear end of the threaded rod 2321 extends through and extends to the rear end of the pickling chamber 23 and is connected to a group of motors 2322. The front end of the driving shaft of the second motor 2322 is connected to the rear end of the threaded rod 2321, and can drive it to rotate. A group of connecting tubes 2323 are connected to the outside of the threaded rod 2321. The inner side of the connecting tube 2323 is provided with an internal thread corresponding to the threaded rod 2321. The threaded rod 2321 The rotation can drive the connecting tube 2323 to rotate and move along the threaded rod 2321. At least two groups of arc plates 2324 are arranged at equal intervals on the outside of the connecting tube 2323. The arc plates 2324 are made of metal and are elastic. The outer corners are all arranged in an arc shape to avoid scratching and damaging the stainless steel. A group of connecting splints 2325 are connected to the right end of the connecting tube 2323. The front and rear ends of the connecting tube 2323 are provided with annular grooves. The front and rear ends of the connecting splints 2325 are connected to the connecting tube 2323 through annular grooves. The connecting tube 2323 can rotate at the left end inside the connecting splint 2325, and a group of scrapers 2326 are arranged at the bottom of the connecting splint 2325 to scrape off impurities on the stainless steel.

[0034] See also Figure 5-6The present invention provides a high-efficiency mixed acid pickling device for a stainless steel pickling line, wherein the expansion mechanism 25 comprises a recovery tank 251, a discharge pipe 252, a support frame 253 and a side plate 254. A group of recovery tanks 251 are connected to the top right side of the working cabin 21, a group of discharge pipes 252 for easy discharge are connected to the bottom inner end of the recovery tank 251, a group of inverted "U"-shaped support frames 253 are arranged at the left end of the top of the recovery tank 251, and a group of side plates 254 are arranged at the front and rear ends of the top of the recovery tank 251;

[0035] The stainless steel passes through the support frame 253. The top surface and the front and back surfaces of the support frame 253 are all provided with nozzles 2531, which can spray water to the stainless steel to clean its outer side. The inner end of the support frame 253 is provided with a water pipe 2532 corresponding to the nozzle 2531, which can supply water to the nozzle 2531.

[0036] Two groups of scrapers 2541 are provided at the left ends of the opposite surfaces of the two groups of side panels 254. The two groups of scrapers 2541 can contact the upper and lower surfaces of the stainless steel and are arranged in a "V" shape to scrape off moisture on the stainless steel. Two groups of cleaning blocks 2542 are provided at the right ends of the opposite surfaces of the two groups of side panels 254 to wipe the outer side of the stainless steel. The front and rear ends of the two groups of cleaning blocks 2542 are connected to the opposite surfaces of the two groups of side panels 254 through card slots and can be disassembled to facilitate cleaning and replacement of the cleaning blocks 2542.

[0037] The present invention provides a high-efficiency mixed acid pickling device for a stainless steel pickling line. When in use, the stainless steel can be bent by two sets of guide rollers 1 212 and 213 at the left end, so that the stainless steel enters the pickling chamber 23, bypasses two sets of guide rollers 3 231, and leaves the pickling chamber 23 from between two sets of guide rollers 1 212 and 213 at the right end.

[0038] A mixed acid solution for pickling stainless steel is provided in the pickling chamber 23. When the stainless steel passes through the pickling chamber 23, the motor 2322 can drive the threaded rod 2321 to rotate, thereby driving the connecting tube 2323 to rotate and move back and forth. When the connecting tube 2323 rotates, the arc plate 2324 can be used to beat the surface of the stainless steel to separate impurities on the outside of the stainless steel, thereby improving the pickling effect. The mixed acid solution can be heated by the heating module 241, and the paddle 243 can stir the mixed acid solution to improve the reaction efficiency of the mixed acid solution and the stainless steel.

[0039] After the stainless steel leaves the pickling chamber 23, it can first pass through the support frame 253. The support frame 253 flushes its outer side through the nozzle 2531 to wash away the mixed acid solution remaining on the surface of the stainless steel, and then scrapes it with the scraper 2541 and wipes it with the cleaning block 2542 to prevent the mixed acid solution from causing corrosion damage to subsequent processing equipment and affecting the surrounding environment.

[0040] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stainless steel pickling line high-efficiency mixed acid pickling device, comprising two sets of movable stainless steel conveyor belts (1), characterized in that: It also includes a pickling mechanism (2) disposed between the two sets of conveyor belts (1); The pickling mechanism (2) comprises a working cabin (21), a base (22), a pickling cabin (23), a cavity (24) and an expansion mechanism (25); a working cabin (21) is arranged between two groups of conveyor belts (1); a base (22) is arranged at each of the four ends of the bottom surface of the working cabin (21); a pickling cabin (23) is arranged at the middle end of the top of the working cabin (21); a cavity (24) is arranged between the pickling cabin (23) and the working cabin (21); and a right end of the working cabin (21) is connected to a group of expansion mechanisms (25).

2. According to claim 1, a high-efficiency mixed acid pickling device for a stainless steel pickling line, characterized in that: A set of side panels (211) are provided at the four ends of the top surface of the working cabin (21), and a set of guide rollers (212) and (213) are provided between the front and rear sets of side panels (211).

3. According to claim 1, a high-efficiency mixed acid pickling device for a stainless steel pickling line, characterized in that: A group of guide rollers (231) are provided at the left and right bottom ends of the pickling chamber (23), a group of reinforcing mechanisms (232) are provided between the two groups of guide rollers (231), and a group of discharge pipes (233) are connected to the middle end of the bottom of the pickling chamber (23), the bottom end of the discharge pipes (233) sequentially passes through the cavity (24) and the bottom end of the working chamber (21) and extends to the bottom end of the working chamber (21).

4. According to claim 3, a stainless steel pickling line high-efficiency mixed acid pickling device is characterized in that: At least two groups of heating modules (241) are provided inside the cavity (24), and a group of motors (242) are provided at the left and right ends of the inner bottom of the cavity (24). The top end of the driving shaft of the motor (242) extends through the pickling chamber (23) and is connected to a group of paddles (243).

5. According to claim 3, a high-efficiency mixed acid pickling device for a stainless steel pickling line is characterized in that: The strengthening mechanism (232) comprises a threaded rod (2321), a second motor (2322), a connecting tube (2323), an arc plate (2324), a connecting clamp (2325) and a scraper (2326). A group of threaded rods (2321) is provided at the middle end of the pickling chamber (23). The rear end of the threaded rod (2321) extends through the rear end of the pickling chamber (23) and is connected to a group of second motors (2322). The outer side of the threaded rod (2321) is connected to a group of connecting tubes (2323). The outer side of the connecting tube (2323) is provided with at least two groups of arc plates (2324) at equal intervals. The right end of the connecting tube (2323) is connected to a group of connecting clamps (2325). The bottom end of the connecting clamp (2325) is provided with a group of scrapers (2326).

6. According to claim 1, a stainless steel pickling line high-efficiency mixed acid pickling device is characterized in that: The expansion mechanism (25) comprises a recovery trough (251), a second discharge pipe (252), a support frame (253) and a second side plate (254); a group of recovery troughs (251) are connected to the top end of the right side of the working chamber (21); a group of discharge pipes (252) are connected to the bottom end of the recovery trough (251); a group of support frames (253) are provided at the top left end of the recovery trough (251); and a group of second side plates (254) are provided at the front and rear ends of the top of the recovery trough (251).

7. According to claim 6, a high-efficiency mixed acid pickling device for a stainless steel pickling line, characterized in that: The support frame (253) is in an inverted "U" shape, and a nozzle (2531) is provided on the inner top surface and the inner front and rear surfaces. A water pipe (2532) corresponding to the nozzle (2531) is provided at the inner end of the support frame (253).

8. According to claim 6, a high-efficiency mixed acid pickling device for a stainless steel pickling line, characterized in that: Two groups of scrapers (2541) are provided at the left ends of the opposite surfaces of the two groups of side plates (254), and two groups of cleaning blocks (2542) are provided at the right ends of the opposite surfaces.

9. A high-efficiency mixed acid pickling device for a stainless steel pickling line according to claim 8, characterized in that: The scraper (2541) is shaped like a "V", and the front and rear ends of the two groups of cleaning blocks (2542) are connected to the opposite surfaces of the two groups of side panels (254) through a slot.

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