A low temperature crystallization apparatus for stainless steel pickling

Abstract

The utility model relates to pickling low temperature crystallization technical field, concretely for a kind of low temperature crystallization equipment for stainless steel pickling, including machine body, the lower end in the machine body is equipped with cooling coil assembly, one side of the machine body is provided with agitating mechanism, two drive rods are symmetrically equipped on the agitating mechanism, and the two ends of two drive rods are respectively rotationally connected on the opposite inner wall of machine body. The utility model can be cooled to pickling liquid, and can be agitated to pickling liquid, so that the temperature of pickling liquid is uniformly reduced, and the pickling liquid can be kept in constant temperature state, which provides a good environment for pickling liquid crystallization, facilitates the crystallization operation of pickling liquid quickly, and can also be monitored in real time, so as to understand the crystallization condition of pickling liquid, and the pickling liquid crystals can also be salvaged quickly, which is convenient for centralized collection and processing in later period.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature crystallization technology for pickling, and in particular to a low-temperature crystallization device for pickling stainless steel. Background Technology

[0002] Pickling is an essential process in stainless steel production. It not only ensures the good quality of the steel surface but also prepares the material for further processing. In addition, pickling waste liquid contains a large amount of recyclable water and metal ions, making the resource utilization of pickling waste liquid extremely urgent.

[0003] A stainless steel pickling waste liquid recycling device, disclosed in CN217297576U, includes a base, a box, vertical partitions, horizontal partitions, and a waste liquid tank. A crystallization mechanism is installed at the bottom of the horizontal partition inside the box, and a filtration mechanism is installed on one side of the box near the vertical partition. The crystallization mechanism includes a water tank, a heater, a heat dissipation pipe, a crystallization tank, an outlet pipe, a pipe port, a crystallization tube, and a collection box. The heat dissipation pipe is fixedly sleeved on the outer wall of the crystallization tank. Through the combined action of these mechanisms, the metal in the waste liquid can be evaporated and crystallized for recovery, reducing resource waste, simplifying subsequent waste liquid treatment, and preventing waste liquid discharge from impacting the environment. The secondary steam generated during evaporation and crystallization in the crystallization tank is then introduced into the aqueous solution through the outlet pipe, allowing for reuse of the heat in the secondary steam, reducing heat loss, and improving the heating effect on the waste liquid.

[0004] The above technical solution is not conducive to fully realizing low-temperature crystallization, which affects the quality and efficiency of crystallization, and it is also inconvenient to remove the crystals. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-temperature crystallization device for pickling stainless steel.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A low-temperature crystallization device for stainless steel pickling includes a body. A cooling coil assembly is installed at the lower end of the body. An agitation mechanism is provided on one side of the body. Two drive rods are symmetrically arranged on the agitation mechanism. The two ends of the two drive rods are rotatably connected to the opposite inner walls of the body. The two drive rods are respectively positioned above the cooling coil assembly. Multiple stirring plates are fixed at equal intervals around the two drive rods. Two baffles are provided above the two drive rods. The two baffles are respectively fixed to the opposite inner walls of the body. Screws are fixed on both sides of the upper end of the two baffles. The upper ends of the two baffles abut against a sieve plate assembly. The four corners of the sieve plate assembly are slidably sleeved on the four screws. An isolation mechanism is provided on the four screws. A heat insulation sealing plate assembly is provided on the isolation mechanism. The upper ends of the four screws are threaded with lower nuts. The four lower nuts are located at the four lower corners of the heat insulation sealing plate assembly. The four corners of the heat insulation sealing plate assembly are slidably sleeved on the four screws. The heat insulation sealing plate assembly is located at the upper end of the body.

[0008] Compared with the prior art, this utility model can cool down the pickling solution and stir it at the same time, so that the temperature of the pickling solution drops evenly and the pickling solution is kept at a constant temperature. This provides a good environment for the pickling solution to crystallize, which is convenient for the pickling solution to crystallize quickly. At the same time, it can monitor the crystallization of the pickling solution in real time, so as to understand the crystallization status. It can also quickly collect the crystals of the pickling solution for later centralized collection and processing.

[0009] Preferably, in order to ensure uniform temperature of the pickling solution inside the machine body, the agitation mechanism includes a fixed frame fixedly connected to one side of the machine body, a motor fixedly installed inside the fixed frame, the end of the output shaft of the motor passing through one side of the machine body and fixedly connected to one end of one of the drive rods, one end of each of the two drive rods passing through the other side of the machine body and fixedly connected to a sprocket, and the two sprockets being connected by a chain drive.

[0010] Preferably, in order to prevent foreign objects from entering the machine body and affecting the crystallization of the pickling solution inside the machine body when the thermal insulation sealing plate assembly is installed above the machine body, the isolation mechanism includes four upper nuts that are threaded onto the upper ends of four screws respectively. The four upper nuts are located at the four upper corners of the thermal insulation sealing plate assembly. Adhesive blocks are attached to the four upper and four lower corners of the thermal insulation sealing plate assembly. Eight adhesive blocks are respectively fitted onto the four screws. The lower ends of the four upper nuts abut against the upper ends of the four upper adhesive blocks, and the upper ends of the four lower nuts abut against the lower ends of the four lower adhesive blocks.

[0011] Preferably, in order to press the screen plate assembly to stabilize it within the machine body, the lower ends of the four lower nuts are all in contact with springs, the four springs are respectively sleeved on the four screws, and the lower ends of the four springs are respectively fixedly connected to the four corners of the upper end of the screen plate assembly.

[0012] Preferably, the crystallization situation in the pickling solution is monitored in real time by a real-time monitoring component. Multiple real-time monitoring components are installed at equal intervals at the lower end of the heat insulation and sealing plate assembly, and the multiple real-time monitoring components are arranged together on the upper part of the machine body.

[0013] Preferably, in order to facilitate the movement of the thermal insulation sealing plate assembly, handles are fixed on both sides of the upper end of the thermal insulation sealing plate assembly.

[0014] The beneficial effects of this utility model are:

[0015] By using cooling coil assembly and stirring mechanism, the pickling solution can be cooled down, so that the temperature of the pickling solution is lowered evenly and can be lowered to the crystallization temperature, thereby improving the crystallization effect of the pickling solution.

[0016] 2. By using an isolation mechanism, the influence of the external environment on the pickling solution can be avoided, keeping the pickling solution at a constant low temperature. At the same time, the real-time monitoring component can accurately understand the crystallization of the pickling solution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure of this utility model;

[0018] Figure 2 This is a structural diagram of the joint of the adhesive blocks in this utility model;

[0019] Figure 3 This is an appendix to the utility model Figure 1 Enlarged view of point A;

[0020] Figure 4 This is a schematic diagram of the thermal insulation sealing plate assembly structure of this utility model.

[0021] In the diagram: 1. Body, 2. Cooling coil assembly, 3. Fixing frame, 4. Motor, 5. Drive rod, 6. Stirring plate, 7. Sprocket, 8. Chain, 9. Baffle, 10. Screw, 11. Screen plate assembly, 12. Spring, 13. Lower nut, 14. Thermal insulation sealing plate assembly, 15. Glue block, 16. Upper nut, 17. Real-time monitoring assembly, 18. Handle. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that the following description is only for explaining the present invention and does not limit its content.

[0023] Reference Figure 1-4A low-temperature crystallization device for stainless steel pickling includes a body 1. A cooling coil assembly 2 is installed at the lower end of the body 1. The cooling coil assembly 2 is connected to supporting components for stable operation. It can be programmed and operated automatically. The operation of the cooling coil assembly 2 can cool the pickling solution in the body 1, so that the pickling solution in the body 1 is controlled to the most suitable temperature for crystallization, thereby increasing the crystallization efficiency. An agitation mechanism is provided on one side of the body 1. The operation of the agitation mechanism can agitate the pickling solution near the cooling coil assembly 2, so that the temperature of the pickling solution in the body 1 is lowered evenly.

[0024] Reference Figure 1 , 3 Two drive rods 5 are symmetrically arranged on the stirring mechanism. The two ends of the two drive rods 5 are rotatably connected to the opposite inner walls of the machine body 1. Through the operation of the stirring mechanism, the two drive rods 5 can be driven to rotate. The two drive rods 5 are respectively arranged above the cooling coil assembly 2. The rotation of the two drive rods 5 can drive the multiple stirring plates 6 on the two drive rods 5 to rotate, so that the multiple stirring plates 6 can stir the pickling solution at the upper end of the cooling coil assembly 2, which can make the temperature of the pickling solution in the machine body 1 decrease evenly.

[0025] Reference Figure 1 , 3 The agitation mechanism includes a fixed frame 3 fixedly connected to one side of the machine body 1. A motor 4 is fixedly installed inside the fixed frame 3. The fixed frame 3 can support the motor 4, allowing the motor 4 to be mounted on the machine body 1. The motor 4 and its supporting components are connected for stable operation. The motor 4 can be programmed for automatic operation. The output shaft of the motor 4 passes through one side of the machine body 1 and is fixedly connected to one end of one of the drive rods 5. When the motor 4 operates, it can drive one of the drive rods 5 to rotate, providing power for the rotation of one of the drive rods 5. One end of each of the two drive rods 5 passes through the other side of the machine body 1 and is fixedly connected to a sprocket. 7. The two sprockets 7 are connected by a chain 8. When one of the drive rods 5 rotates, it can drive one of the sprockets 7 to rotate. When one of the sprockets 7 rotates, it can drive the other sprocket 7 to rotate through the chain 8. The synchronous rotation of the two sprockets 7 can drive the two drive rods 5 to rotate at the same time. Multiple stirring plates 6 are fixed at equal intervals around the two drive rods 5. When the two drive rods 5 rotate, they can drive the multiple stirring plates 6 to rotate. The rotation of the multiple stirring plates 6 can agitate the pickling solution in the machine body 1, so that the temperature of the pickling solution in the machine body 1 is lowered evenly, so as to reach the temperature suitable for crystallization of the pickling solution.

[0026] Reference Figure 1 , 3Two baffles 9 are provided above the two drive rods 5. The two baffles 9 are fixedly connected to the opposite inner walls of the machine body 1. Screws 10 are fixed on both sides of the upper end of the two baffles 9. The two baffles 9 can support the four screws 10 and keep them stable. The upper ends of the four screws 10 are provided with threads. The upper ends of the two baffles 9 abut against the screen plate assembly 11. The four corners of the screen plate assembly 11 are slidably sleeved on the four screws 10. The screen plate assembly 11 is provided with multiple through holes for the flow of pickling solution. At the same time, the screen plate assembly 11 is used to support the material for crystallization so that the material in the pickling solution can gather here and crystallize. The screen plate assembly 11 can be removed from the machine body 1 to facilitate the retrieval of crystal particles in the machine body 1. At the same time, the four screws 10 can restrict the movement of the screen plate assembly 11 so that the screen plate assembly 11 can be installed in the machine body 1.

[0027] Reference Figure 1-4 Each of the four screws 10 is equipped with an isolation mechanism, which is equipped with a heat insulation sealing plate assembly 14. The heat insulation sealing plate assembly 14 can protect the upper end of the machine body 1 and prevent foreign objects from entering the machine body 1. The upper ends of the four screws 10 are threaded with lower nuts 13. The four lower nuts 13 are located at the four lower corners of the heat insulation sealing plate assembly 14. The four lower nuts 13 can block the heat insulation sealing plate assembly 14, so that the heat insulation sealing plate assembly 14 is positioned above the machine body 1. The lower ends of the four lower nuts 13 are in contact with springs 12. The four springs 12 are respectively sleeved on the four screws 10. The lower ends of the four springs 12 are respectively fixedly connected to the four upper corners of the screen plate assembly 11. The four lower nuts 13 can restrict the upper ends of the springs 12, so that the springs 12 are pressed downward, which can press the screen plate assembly 11 and increase the stability of the screen plate assembly 11.

[0028] Reference Figure 1 , 24. The four corners of the thermal insulation sealing plate assembly 14 are slidably sleeved on four screws 10. The four screws 10 restrict the rotation of the thermal insulation sealing plate assembly 14, so that the thermal insulation sealing plate assembly 14 is positioned above the body 1. The isolation mechanism includes four upper nuts 16 that are threaded onto the upper ends of the four screws 10. The four upper nuts 16 are located at the four upper corners of the thermal insulation sealing plate assembly 14. The upper nuts 16 can block the upper end of the thermal insulation sealing plate assembly 14, preventing the thermal insulation sealing plate assembly 14 from rotating. 4. The insulation sealing plate assembly 14 is detached from the screw 10. The upper and lower four corners of the insulation sealing plate assembly 14 are covered with adhesive blocks 15. The eight adhesive blocks 15 are respectively fitted onto the four screws 10. The lower ends of the four upper nuts 16 respectively abut against the upper ends of the four upper adhesive blocks 15, and the upper ends of the four lower nuts 13 respectively abut against the lower ends of the four lower adhesive blocks 15. The adhesive blocks 15 can protect the insulation sealing plate assembly 14 and prevent the upper nuts 16 and lower nuts 13 from contacting the insulation sealing plate assembly 14 and causing damage.

[0029] Reference Figure 1 , 2 4. The thermal insulation sealing plate assembly 14 is located at the upper end of the body 1. Multiple real-time monitoring components 17 are installed at equal intervals at the lower end of the thermal insulation sealing plate assembly 14. The multiple real-time monitoring components 17 are arranged on the upper part of the body 1. The real-time monitoring components 17 are connected to the supporting components to facilitate stable operation. They can be programmed and operate automatically. The crystallization of the pickling solution can be accurately understood through the real-time monitoring components 17. Handles 18 are fixed on both sides of the upper end of the thermal insulation sealing plate assembly 14. The handles 18 make it easy to move the thermal insulation sealing plate assembly 14, which increases the convenience of disassembly and installation of the thermal insulation sealing plate assembly 14.

[0030] In this invention, the sieve plate assembly 11 is used to carry the crystallization material. The cooling coil assembly 2 is controlled by a matching control device. The operation of the cooling coil assembly 2 can reduce the temperature of the pickling solution. The cooling of the pickling solution in the machine body 1 can be rapidly reduced to achieve the crystallization temperature environment. At the same time, the motor 4 is controlled by the matching control device. The motor 4 drives one of the drive rods 5 to rotate. The rotation of one drive rod 5 drives one of the sprockets 7 to rotate. The rotation of one sprocket 7 drives another sprocket 7 to rotate synchronously through the chain 8. The synchronous rotation of the two sprockets 7 drives the two drive rods 5 to rotate synchronously. The synchronous rotation of the two drive rods 5 drives multiple stirring plates 6 to stir the pickling solution near the cooling coil assembly 2, so that the temperature of the pickling solution in the machine body 1 reaches the appropriate crystallization temperature. This facilitates crystallization operations on the sieve plate assembly 11.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-temperature crystallization apparatus for pickling stainless steel, comprising a body (1), characterized in that: A cooling coil assembly (2) is installed at the lower end of the body (1). A stirring mechanism is provided on one side of the body (1). Two drive rods (5) are symmetrically provided on the stirring mechanism. The two ends of the two drive rods (5) are rotatably connected to the opposite inner walls of the body (1). The two drive rods (5) are respectively positioned above the cooling coil assembly (2). Multiple stirring plates (6) are fixed at equal intervals around the two drive rods (5). Two baffles (9) are provided above the two drive rods (5). The two baffles (9) are respectively fixedly connected to the opposite inner walls of the body (1). Both sides of the upper end of the two baffles (9) are fixed with screws (10), and the upper ends of the two baffles (9) jointly abut against the screen plate assembly (11). The four corners of the screen plate assembly (11) are respectively slidably sleeved on the four screws (10). The four screws (10) are provided with an isolation mechanism. The isolation mechanism is provided with a heat insulation sealing plate assembly (14). The upper ends of the four screws (10) are threaded with lower nuts (13). The four lower nuts (13) are respectively located at the four corners of the lower end of the heat insulation sealing plate assembly (14). The four corners of the heat insulation sealing plate assembly (14) are respectively slidably sleeved on the four screws (10). The heat insulation sealing plate assembly (14) is located at the upper end of the machine body (1).

2. The low-temperature crystallization equipment for pickling stainless steel according to claim 1, characterized in that: The stirring mechanism includes a fixed frame (3) fixedly connected to one side of the machine body (1). A motor (4) is fixedly installed inside the fixed frame (3). The output shaft of the motor (4) passes through one side of the machine body (1) and is fixedly connected to one end of one of the drive rods (5). One end of each of the two drive rods (5) passes through the other side of the machine body (1) and is fixedly connected to a sprocket (7). The two sprockets (7) are connected by a chain (8).

3. The low-temperature crystallization equipment for pickling stainless steel according to claim 1, characterized in that: The isolation mechanism includes four upper nuts (16) threaded onto the upper ends of four screws (10), the four upper nuts (16) being located at the four upper corners of the thermal insulation sealing plate assembly (14), and adhesive blocks (15) being attached to the four upper and four lower corners of the thermal insulation sealing plate assembly (14). Eight adhesive blocks (15) are respectively fitted onto the four screws (10), the lower ends of the four upper nuts (16) abutting against the upper ends of the four adhesive blocks (15) located at the upper end, and the upper ends of the four lower nuts (13) abutting against the lower ends of the four adhesive blocks (15) located at the lower end.

4. The low-temperature crystallization equipment for pickling stainless steel according to claim 1, characterized in that: The lower ends of the four lower nuts (13) all abut against springs (12), and the four springs (12) are respectively sleeved on the four screws (10). The lower ends of the four springs (12) are respectively fixedly connected to the four corners of the upper end of the screen plate assembly (11).

5. A low-temperature crystallization apparatus for pickling stainless steel according to claim 1, characterized in that: Multiple real-time monitoring components (17) are installed at equal intervals at the lower end of the thermal insulation sealing plate assembly (14), and the multiple real-time monitoring components (17) are arranged together on the upper part of the body (1).

6. A low-temperature crystallization apparatus for pickling stainless steel according to claim 1, characterized in that: The upper two sides of the thermal insulation sealing plate assembly (14) are fixed with handles (18).

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