A pickling and descaling machine for stainless steel sheet and coil production

Abstract

This utility model relates to a pickling and descaling machine for stainless steel plate and coil production, belonging to the field of steel plate and coil processing technology. The machine includes a base plate, with a first fixed plate and a second fixed plate fixed on both sides. A first roller rotates between the first and second fixed plates. An pickling assembly is installed inside the base plate. An extrusion assembly is fixed to the top of the base plate and positioned between the first and second fixed plates on one side of the pickling assembly. A descaling assembly is fixed to the top of the base plate and positioned between the first and second fixed plates on one side of the extrusion assembly. In this utility model, the steel plate and coil are drawn into the pickling tank by the first roller, and a water pump replenishes the pickling solution. The second roller drives the steel plate and coil to immerse and remove the oxide layer. A servo motor in the extrusion assembly drives a threaded rod, which in turn moves a threaded block, a connecting block, and a third roller, cooperating with a fourth roller to extrude the steel plate and coil, ensuring smooth conveying.

Description

Technical Field

[0001] This utility model belongs to the field of steel plate coil processing technology, specifically relating to an acid pickling and descaling machine for stainless steel plate coil production. Background Technology

[0002] Steel coils are widely used in construction, machinery manufacturing, automobiles, home appliances and other fields. They can be processed into finished products such as plates, pipes and parts. They are a core raw material for industrial production. Pickling and descaling are key pretreatment processes. Pickling solution dissolves the oxide scale and oil on the surface, and high-pressure rinsing removes the phosphorus layer. This not only removes impurities to avoid surface defects in subsequent processing, but also improves the cleanliness and flatness of the steel coil surface, ensuring the quality of subsequent welding, painting and other processes, and extending the service life of the finished product.

[0003] For example, in the Chinese utility model patent with announcement number CN223240172U, entitled "A Pickling and Descaling Machine for Stainless Steel Plate Coil Production," the main body of the equipment is described. The material is fed through the inlet into the pickling tank and the drying tank and wound onto the winding roller. The left-side conveying pump discharges the pickling liquid from the left-side storage tank into the connecting pipe through a vertical pipe, and then sprays it out through multiple nozzles on the left side for pickling. The right-side conveying pump discharges clean water from the right-side storage tank into the connecting pipe through another vertical pipe, and then sprays it out through multiple nozzles on the right side to clean the pickled material. Although the above-mentioned prior art can pickle and descale steel plate coils, it cannot completely guarantee that the steel plate coils will react completely during the pickling process. In order to solve the above problems, there is now a need for a pickling and descaling machine for stainless steel plate coil production. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed pickling and descaling machine for stainless steel plate and coil production in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A pickling and descaling machine for stainless steel sheet and coil production includes a base plate, with a first fixing plate and a second fixing plate fixed on both sides of the base plate. A first roller rotates between the first fixing plate and the second fixing plate. A pickling assembly is disposed inside the base plate. An extrusion assembly is disposed on one side of the pickling assembly, fixed to the top of the base plate and disposed between the first fixing plate and the second fixing plate. A descaling assembly is disposed on one side of the extrusion assembly, fixed to the top of the base plate and disposed between the first fixing plate and the second fixing plate. A drying assembly is disposed on one side of the descaling assembly, fixed to the top of the base plate and disposed between the first fixing plate and the second fixing plate.

[0007] As a further optimization of this utility model, the pickling assembly includes a pickling tank set on the top of the base plate, two rollers rotating inside the pickling tank, and a water pump communicating with the pickling tank is provided on the outer wall of the fixed plate.

[0008] As a further optimization of this utility model, the extrusion assembly includes a servo motor fixed to the outer wall of the second fixed plate. A threaded rod is fixed to the output end of the servo motor. A threaded block that slides inside the second fixed plate is threadedly sleeved on the outer wall of the threaded rod. A limit rod is fixed inside the first fixed plate. A connecting block slides through the outer wall of the limit rod. A roller three rotates between the connecting block and the threaded block. A roller four that rotates between the first fixed plate and the second fixed plate is arranged directly above the roller three.

[0009] As a further optimization of this utility model, the phosphorus breaking assembly includes a phosphorus breaking box fixed to the top of the base plate. The phosphorus breaking box has two opposing conveying chambers arranged at the top and bottom. Each of the four conveying chambers is equipped with several high-pressure nozzles. A high-pressure water pump is provided on the outer wall of the second fixed plate. The output end of the high-pressure water pump is fixedly connected to a high-pressure water pipe that is connected to the conveying chamber. A water outlet pipe connected to the conveying chamber is provided on the outer wall of the first fixed plate. Conveying channels are opened on both sides of the phosphorus breaking box and connected to it.

[0010] As a further optimization of this utility model, the drying assembly includes a drying box fixed to the top of the base plate, a protective cover is provided on the top of the drying box, an exhaust hole communicating with the drying box is opened on the top of the protective cover, electric heating tubes are provided inside both sides of the drying box, and a second conveying channel communicating with the drying box is opened on both sides of the drying box.

[0011] As a further optimization of this utility model, a roller five rotates between the first fixing plate and the second fixing plate.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model of pickling and descaling machine uses a base plate as the installation foundation. Various functional components are supported by fixed plates one and two. The steel plate roll is pulled into the pickling tank by roller one. The water pump replenishes the pickling solution. Roller two drives the steel plate roll to immerse and remove the oxide layer. In the extrusion component, the servo motor drives the threaded rod, which drives the threaded block, connecting block and roller three to move. It cooperates with roller four to extrude the steel plate roll, ensuring flat conveying and laying the foundation for subsequent processes.

[0014] 2. After the steel plate coil enters the descaling box, the high-pressure water pump delivers high-pressure water through the water pipe to the high-pressure nozzle of the conveying chamber, which thoroughly washes and removes the phosphorus layer and residual acid. The wastewater is discharged through the outlet pipe. Then the steel plate coil enters the drying box, where the electric heating tube heats up and evaporates the surface moisture. The water vapor is discharged from the exhaust hole and finally conveyed to the winding machine by rollers. This achieves integrated treatment of pickling, descaling, and drying, ensuring the surface quality of the steel plate coil. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is the utility model Figure 1 A top-view structural diagram;

[0017] Figure 3 This is a schematic diagram of the pickling assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the extrusion assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the front structure of the phosphorus-breaking component of this utility model;

[0020] Figure 6 This is a schematic diagram of the rear structure of the phosphorus-breaking component of this utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the drying component of this utility model.

[0022] In the diagram: 1. Base plate; 2. Fixing plate one; 3. Fixing plate two; 4. Roller one; 5. Pickling assembly; 501. Pickling tank; 502. Roller two; 503. Water pump; 6. Extrusion assembly; 601. Servo motor; 602. Threaded rod; 603. Threaded block; 604. Connecting block; 605. Limiting rod; 606. Roller three; 607. Roller four; 7. Phosphate breaking assembly; 701. Phosphate breaking box; 702. Conveying chamber; 703. High-pressure nozzle; 704. High-pressure water pipe; 705. High-pressure water pump; 706. Water outlet pipe; 707. Conveying channel one; 8. Drying assembly; 801. Drying box; 802. Protective cover; 803. Exhaust vent; 804. Heating element; 805. Conveying channel two; 9. Roller five. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example 1: As Figure 1 , Figure 2 As shown, a pickling and descaling machine for stainless steel sheet and coil production includes a base plate 1, which provides an installation support foundation for the entire equipment to ensure the position of each component is fixed. Fixed plates 1 and 2 and 3 are fixed on both sides of the base plate 1, providing a vertical mounting carrier for components such as rollers and motors to ensure assembly stability. Roller 4 rotates between fixed plates 1 and 2 and 3, and the rotation of roller 4 realizes the initial traction and conveying of the steel sheet and coil. Roller 5 9 rotates between fixed plates 1 and 2 and 3, and roller 5 9 provides conveying conditions for the steel sheet and coil.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the bottom plate 1 is equipped with a pickling assembly 5. The pickling assembly 5 provides the core processing structure for removing the oxide layer on the surface of the steel plate coil. The pickling assembly 5 includes a pickling tank 501 set on the top of the bottom plate 1. The pickling tank 501 is used to store pickling solution and provide space for the pickling reaction. There are two rotating rollers 502 inside the pickling tank 501. The rotation of the rollers 502 drives the steel plate coil to move smoothly in the pickling tank. A water pump 503 is set on the outer wall of the fixed plate 3. The water pump 503 of model ISG50-160 is selected. Its function is to transport the external pickling solution to the pickling tank 501 to ensure the replenishment of pickling solution. The output end of the water pump 503 is connected to the pickling tank 501, so that the transported pickling solution is directly injected into the pickling tank to achieve sealed replenishment and avoid leakage.

[0026] like Figure 1 , Figure 2 , Figure 4As shown, an extrusion assembly 6 is provided between the first fixed plate 2 and the second fixed plate 3. The extrusion assembly 6 uses rollers to extrude the steel plate to ensure that the rolled steel is flat for subsequent processing. The extrusion assembly 6 includes a servo motor 601 fixed to the outer wall of the second fixed plate 3. The servo motor 601, model MS1H1-20CB, is selected. Its function is to provide precise power to drive the threaded rod 602 to rotate. The output end of the servo motor 601 is fixed to the threaded rod 602. The rotation of the threaded rod 602 is converted into the linear motion of the threaded block 603. The threaded block 603 is threadedly fitted on the outer wall of the threaded rod 602. The threaded block 603 moves horizontally following the rotation of the threaded rod. The threaded block 603 slides inside the second fixed plate 3. The second fixed plate 3 provides sliding guidance and restricts the movement of the threaded block 603. The track is fixed inside the fixed plate 1 2 with a limit rod 605. The limit rod 605 provides sliding support for the connecting block 604 to ensure smooth movement. The connecting block 604 slides through the outer wall of the limit rod 605. The connecting block 604 and the threaded block 603 move synchronously to drive the roller 3 606 to adjust its position. The roller 3 606 rotates between the connecting block 604 and the threaded block 603. The roller 3 606 cooperates with the roller 4 607 to compress and flatten the steel plate coil. The roller 4 607 is set directly above the roller 3 606. The rotation of the roller 4 607 cooperates with the roller 3 606 to achieve smooth conveying of the steel plate coil. The roller 4 607 rotates between the fixed plate 1 2 and the fixed plate 2 3. The fixed plate 1 2 and the fixed plate 2 3 provide rotational support for the roller 4 607 to ensure firm installation.

[0027] like Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, a phosphorus-removing assembly 7 is installed on the top of the base plate 1 between the fixed plate 2 and the fixed plate 3. The phosphorus-removing assembly 7 is used to remove the residual phosphorus layer on the surface of the steel coil and rinse away impurities. The phosphorus-removing assembly 7 includes a phosphorus-removing box 701 fixed on the top of the base plate 1. The phosphorus-removing box 701 forms a closed phosphorus-removing space to prevent splashing of rinsing liquid. Inside the phosphorus-removing box 701, there are two opposing conveying chambers 702 fixed at the top and bottom respectively. The conveying chambers 702 provide a mounting carrier for the high-pressure nozzles 703 and convey high-pressure fluid. Each of the four conveying chambers 702 is equipped with several high-pressure nozzles 703. The high-pressure fluid is sprayed by the high-pressure nozzles 703 to achieve phosphorus removal and rinsing. In this scheme, each conveying chamber 702 is equipped with 6 high-pressure nozzles 703. A high-pressure water pump 705 is installed on the outer wall of the fixed plate 3. The high-pressure water pump 705, designated 3WZ-50, pressurizes clean water and delivers it to the high-pressure water pipe 704. The output end of the high-pressure water pump 705 is fixedly connected to the high-pressure water pipe 704, which provides a delivery channel for the high-pressure fluid. The input end of the high-pressure water pump 705 is connected to a water storage tank (not shown in the figure) to provide a water source. The high-pressure water pipe 704 is connected to four delivery chambers 702, allowing the high-pressure fluid to be distributed to each delivery chamber 702 for use by the nozzles. The outer wall of the fixed plate 2 is provided with an outlet pipe 706 that communicates with the delivery chambers 702. The outlet pipe 706 discharges the used wastewater into the phosphorus breaking tank 701 for easy recycling. The phosphorus breaking tank 701 has delivery channels 707 on both sides that communicate with it, providing passage space for the steel plate coil.

[0028] like Figure 1 , Figure 2 , Figure 7 As shown, a drying assembly 8 is installed on the top of the base plate 1 between the first fixing plate 2 and the second fixing plate 3. The drying assembly 8 is used to remove moisture from the surface of the steel coil to prevent secondary oxidation. The drying assembly 8 includes a drying chamber 801 fixed to the top of the base plate 1. The drying chamber 801 forms a closed drying space to improve heating efficiency. A protective cover 802 is installed on the top of the drying chamber 801. The protective cover 802 is used to seal the drying chamber and facilitate internal maintenance. An exhaust hole 803 is opened on the top of the protective cover 802. The exhaust hole 803 is used to remove water vapor generated during the drying process. The exhaust hole 803 is connected to the drying chamber 801 to ensure that water vapor can be discharged smoothly and to ensure a stable drying environment. Electric heating tubes 804 are installed inside both sides of the drying chamber 801. The electric heating tubes 804 are energized to generate heat to provide heat to the drying chamber to achieve moisture evaporation. Conveying channels 805 are opened on both sides of the drying chamber 801 and are connected to it. The conveying channels 805 provide passage space for the steel coil. The steel coil in this solution is as follows: Figure 1 The steel plate coil shown passes through the device in the following order from left to right: Roller 1, Pickling Assembly 5, Extrusion Assembly 6, Descaling Assembly 7, Drying Assembly 8, Roller 5, 9.

[0029] It should be noted that, in the production of stainless steel sheet coils, the pickling and descaling machine first pulls the steel sheet coil to the bottom of the two pickling tanks 501 via roller 4, then pulls it between roller 3 606 and roller 4 607, and then sends it out through the descaling assembly 7 and the drying assembly 8, finally through the steel sheet coil 9. After installation, pickling solution is injected into the pickling tank 501, and the steel sheet coil is moved by the winding wheel. The steel sheet coil is pickled through 201, then enters the descaling assembly 7, where the high-pressure nozzle 703 rinses and descals the steel sheet coil. Finally, it enters the drying assembly 8, where the electric heating tube 804 heats and dries the steel sheet coil. Finally, the steel sheet coil is sent to the winding wheel for winding through the steel sheet coil 9.

[0030] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A pickling and descaling machine for stainless steel sheet and coil production, comprising a base plate (1), characterized in that, The base plate (1) is fixed with a first fixing plate (2) and a second fixing plate (3) on both sides. A first roller (4) rotates between the first fixing plate (2) and the second fixing plate (3). The base plate (1) is equipped with an acid washing assembly (5). The acid washing assembly (5) is equipped with an extrusion assembly (6) fixed on the top of the base plate (1) and between the first fixing plate (2) and the second fixing plate (3) on one side. The extrusion assembly (6) is equipped with a phosphorus breaking assembly (7) fixed on the top of the base plate (1) and between the first fixing plate (2) and the second fixing plate (3) on one side. The phosphorus breaking assembly (7) is equipped with a drying assembly (8) fixed on the top of the base plate (1) and between the first fixing plate (2) and the second fixing plate (3) on one side.

2. The pickling and descaling machine for stainless steel sheet and coil production according to claim 1, characterized in that: The pickling assembly (5) includes a pickling tank (501) set on the top of the base plate (1). The pickling tank (501) has two rotating rollers (502) inside. The outer wall of the fixing plate (3) is provided with a water pump (503) that communicates with the pickling tank (501).

3. The pickling and descaling machine for stainless steel sheet and coil production according to claim 1, characterized in that: The extrusion assembly (6) includes a servo motor (601) fixed to the outer wall of the second fixed plate (3). The output end of the servo motor (601) is fixed with a threaded rod (602). The outer wall of the threaded rod (602) is threaded with a threaded block (603) that slides inside the second fixed plate (3). The inside of the first fixed plate (2) is fixed with a limit rod (605). The outer wall of the limit rod (605) is slidably penetrated by a connecting block (604). A roller three (606) rotates between the connecting block (604) and the threaded block (603). A roller four (607) is arranged directly above the roller three (606) and rotates between the first fixed plate (2) and the second fixed plate (3).

4. The pickling and descaling machine for stainless steel sheet and coil production according to claim 1, characterized in that: The phosphorus breaking assembly (7) includes a phosphorus breaking box (701) fixed to the top of the base plate (1). The phosphorus breaking box (701) has two opposing conveying chambers (702) arranged inside, one above the other. Each of the four conveying chambers (702) is equipped with several high-pressure nozzles (703). The outer wall of the second fixing plate (3) is equipped with a high-pressure water pump (705). The output end of the high-pressure water pump (705) is fixedly connected to a high-pressure water pipe (704) that is connected to the conveying chamber (702). The outer wall of the first fixing plate (2) is equipped with a water outlet pipe (706) that is connected to the phosphorus breaking box (701). The phosphorus breaking box (701) has conveying channels (707) connected to it on both sides.

5. The pickling and descaling machine for stainless steel sheet and coil production according to claim 1, characterized in that: The drying assembly (8) includes a drying chamber (801) fixed to the top of the base plate (1). The top of the drying chamber (801) is provided with a protective cover (802). The top of the protective cover (802) is provided with an exhaust hole (803) communicating with the drying chamber (801). Electric heating tubes (804) are provided inside both sides of the drying chamber (801). The two sides of the drying chamber (801) are provided with a second conveying channel (805) communicating with it.

6. The pickling and descaling machine for stainless steel sheet and coil production according to claim 1, characterized in that: Roller five (9) rotates between the first fixed plate (2) and the second fixed plate (3).

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