Pickling solution primary filtering device

Abstract

The utility model relates to the field of pickling equipment, and particularly discloses a pickling solution primary filtering device which comprises a liquid storage tank and a filtering device, the liquid storage tank comprises a base and a tank body, the base is installed at the bottom of the tank body, a liquid inlet is formed in the side face of the tank body, a first bearing hole is formed in the middle of the top of the tank body, and two sliding grooves are symmetrically formed in the side face of the tank body; the first bearing hole is internally connected with a lead screw, the lead screw is in threaded connection with the filtering device, two sliding blocks are arranged on the left side and the right side of the filtering device, the sliding blocks are located in the sliding grooves, a liquid outlet is formed in the side face of the tank body, and a motor is arranged at the bottom of the base and is in transmission connection with the lead screw; the filter plate moves up and down through rotation of the lead screw, so that suspended matters and large-particle impurities in the pickling waste liquid are pushed to the base, and impurity filtration of the pickling waste liquid discharged through the liquid outlet is completed.

Description

Technical Field

[0001] The utility model relates to the field of pickling equipment, and particularly relates to a primary filtering device for pickling solution. Background Art

[0002] Industrial pickling is a method of using acid solution to remove the scale and rust on the surface of steel. It is a method of cleaning the metal surface. With the promotion of environmental protection and energy conservation this year, the pickling waste liquid after pickling operation needs to be recycled and purified to achieve the purpose of saving energy and reducing emissions. For example, a steel pickling waste liquid recycling and treatment device with the patent number CN211035264U introduces a device for recycling and treating pickling waste liquid. Before actually using this device, the pickling waste liquid is often first subjected to primary filtration to remove the floating substances and large particle impurities in the pickling waste liquid. At present, the primary filtration of pickling waste liquid is generally achieved by manually fishing the floating substances in the pickling tank. This method not only has low efficiency, but also is dangerous for the staff. Therefore, a primary filtering device for pickling solution is needed to replace it. Content of the Utility Model

[0003] The utility model is to solve the technical problems mentioned in the above background art, and the following technical solutions are proposed:

[0004] A primary filtering device for pickling solution, comprising a liquid storage tank and a filtering device. The liquid storage tank comprises a base and a tank body. The base is installed at the bottom of the tank body. The tank body is a hollow tank body structure with an open bottom. A support structure is arranged on the outer periphery of the tank body. A liquid inlet is arranged on the side surface of the tank body. A first bearing hole is arranged in the middle of the top of the tank body. Two chutes are symmetrically arranged on the side surface of the tank body. A lead screw is connected in the first bearing hole. The lead screw is threadedly connected with the filtering device. Two sliders are arranged on the left and right sides of the filtering device. The sliders are located in the chutes. A liquid outlet is arranged on the side surface of the tank body.

[0005] A second bearing hole is arranged in the middle of the bottom of the base. A motor is arranged below the second bearing hole. The motor is connected with a rotating shaft. The rotating shaft is connected with the lead screw.

[0006] The filtering device comprises a filter plate, a filter net and a magnetic attraction device. A threaded hole is arranged in the middle of the filter plate. The threaded hole is threadedly connected with the lead screw. A filter net slot is arranged at the bottom of the filter plate. The filter net is installed in the filter net slot. A plurality of drain ports are arranged at the bottom of the filter net slot. A cavity is arranged between the plurality of drain ports. The magnetic attraction device is fixed in the cavity.

[0007] Preferably, the drain port is a bevel structure on one side of the filter net slot.

[0008] Preferably, the magnetic attraction device is an electromagnet.

[0009] Preferably, the filter screen is snap-connected to the filter screen slot.

[0010] Limitedly, a rotating shaft slot is provided at the bottom of the lead screw, a limiting groove is provided on the inner wall of the rotating shaft slot, and a limiting block is provided on the outer periphery of one end of the rotating shaft connected to the lead screw.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. By providing a tank body in the present utility model, a filter plate is provided in the tank body, and a filter screen and a drain port are provided on the filter plate. By rotating the lead screw, the filter plate moves up and down to push the floating substances and large particle impurities in the pickling waste liquid to the base, so that the pickling waste liquid discharged through the liquid outlet is filtered for impurities.

[0013] 2. By providing a magnetic attraction device on the filter plate, the metal debris mixed in the pickling waste liquid can be adsorbed on the filter plate through the magnetic attraction device, reducing the metal debris mixed in the pickling solution and improving the recycling efficiency of the subsequent pickling waste liquid.

[0014] 3. By inserting the lead screw and the rotating shaft, and by providing a limiting groove on the lead screw and a limiting block on the rotating shaft, the purpose of synchronous rotation is achieved through the cooperation of the two, facilitating the separation and combination of the lead screw and the rotating shaft, and facilitating the disassembly and cleaning of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic structural diagram of the filter plate in the present utility model;

[0017] Figure 3 is a schematic structural diagram of the connection between the lead screw and the rotating shaft in the second embodiment of the present utility model.

[0018] In the figure: 1. Liquid storage tank; 1-1. Base; 1-11. Second bearing hole; 1-2. Tank body; 1-21. Liquid inlet; 1-22. First bearing hole; 1-23. Slide groove; 1-24. Liquid outlet; 2. Filter device; 2-1. Filter plate; 2-11. Threaded hole; 2-12. Filter screen slot; 2-13. Drain port; 2-14. Cavity; 2-2. Filter screen; 2-3. Magnetic attraction device; 3. Lead screw; 3-1. Rotating shaft slot; 3-2. Limiting groove; 4. Motor; 5. Rotating shaft; 5-1. Limiting block; 6. Support structure; 7. Slide block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] In the description of the present utility model, it should be understood that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. The connection methods described by the terms "fixed connection" and "fixed setting" include but are not limited to "welding", "riveting", "adhesion", and "threaded connection". The terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0021] The orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0022] Embodiment 1

[0023] Referring to Figure 1-2 , an acid cleaning solution primary filtering device includes a liquid storage tank 1 and a filtering device 2. The liquid storage tank 1 includes a base 1-1 and a tank body 1-2. The base 1-1 is installed at the bottom of the tank body 1-2. The tank body 1-2 is a hollow tank body structure with an open bottom. A support structure 6 is arranged on the outer periphery of the tank body 1-2. A liquid inlet 1-21 is arranged on the side of the tank body 1-2. A first bearing hole 1-22 is arranged in the middle of the top of the tank body 1-2. Two sliding grooves 1-23 are symmetrically arranged on the side of the tank body 1-2. A lead screw 3 is connected in the first bearing hole 1-22. The lead screw 3 is threadedly connected to the filtering device 2. Two sliders 7 are arranged on the left and right sides of the filtering device 2. The sliders 7 are located in the sliding grooves 1-23. A liquid outlet 1-24 is arranged on the side of the tank body 1-2.

[0024] A second bearing hole 1-11 is arranged in the middle of the bottom of the base 1-1. A motor 4 is arranged below the second bearing hole 1-11. The motor 4 is connected to a rotating shaft 5. The rotating shaft 5 is connected to the lead screw 3.

[0025] The filter device 2 includes a filter plate 2-1, a filter screen 2-2 and a magnetic device 2-3. A threaded hole 2-11 is arranged in the middle of the filter plate 2-1. The threaded hole 2-11 is threadedly connected to the screw rod 3. A filter screen slot 2-12 is arranged at the bottom of the filter plate 2-1. The filter screen 2-2 is installed in the filter screen slot 2-12. A plurality of drain outlets 2-13 are arranged at the bottom of the filter screen slot 2-12. A cavity 2-14 is arranged between the plurality of drain outlets 2-13. The magnetic device 2-3 is fixed in the cavity 2-14.

[0026] Preferably, the drain outlet 2-13 is located on one side of the filter slot 2-12 and has a bevel structure.

[0027] Preferably, the magnetic attraction device 2 is an electromagnet.

[0028] Preferably, the filter screen 2-2 is snap-connected to the filter screen slot 2-12.

[0029] In actual operation, first install the base 1-1 at the bottom of the tank body 1-2, connect the rotating shaft 5 with the screw rod 3, then start the motor 4, control the motor 4 to rotate counterclockwise, so that the filter plate 2-1 threadedly connected to the screw rod 3 moves upward until the filter plate 2-1 moves to the top, and then connect the liquid inlet 1-21 to the pickling tank through the pipeline, and the waste liquid after pickling enters the tank body 1-2 through the liquid inlet 1-21. At this time, the motor 4 is controlled to rotate clockwise, so that the filter plate 2-1 threadedly connected to the screw rod 3 moves downward, and the filter plate During the downward movement of filter plate 2-1, the filter screen located in the filter screen slot 2-12 on the filter plate 2-1 will block the impurities in the pickling waste liquid under the filter plate 2-1, and the metal impurities in the pickling waste liquid will also be adsorbed on the filter plate 2-1 by the magnetic suction device 2-3. The filter plate 2-1 can be circulated up and down for multiple filtrations to ensure the filtering effect. Finally, the pickling waste liquid is stopped from being transported to the liquid inlet 1-21, the filter plate 2-1 is moved to the bottom, and the liquid outlet 1-24 is opened to discharge the pickling waste liquid that has completed the primary filtration.

[0030] Implementation II

[0031] Reference Figure 3 The difference between this embodiment and the first embodiment is that a rotating shaft slot 3-1 is provided at the bottom of the screw rod 3, a limiting slot 3-2 is provided on the inner wall of the rotating shaft slot 3-1, and a limiting block 5-1 is provided on the outer periphery of one end of the rotating shaft 5 connected to the screw rod 3.

Claims

1. A pickling liquid primary filtration device, comprising a liquid storage tank (1) and a filtration device (2), characterized in that: The liquid storage tank (1) comprises a base (1-1) and a tank body (1-2), wherein the base (1-1) is mounted on the bottom of the tank body (1-2), the tank body (1-2) is a hollow tank body structure with an opening at the bottom, a support structure (6) is arranged on the periphery of the tank body (1-2), a liquid inlet (1-21) is arranged on the side of the tank body (1-2), a first bearing hole (1-22) is arranged in the middle of the top of the tank body (1-2), two slide grooves (1-23) are symmetrically arranged on the side of the tank body (1-2), a screw rod (3) is connected in the first bearing hole (1-22), the screw rod (3) is threadedly connected to the filter device (2), two sliders (7) are arranged on the left and right sides of the filter device (2), the sliders (7) are located in the slide grooves (1-23), and a liquid outlet (1-24) is arranged on the side of the tank body (1-2); A second bearing hole (1-11) is provided in the middle of the bottom of the base (1-1), a motor (4) is provided below the second bearing hole (1-11), the motor (4) is connected to a rotating shaft (5), and the rotating shaft (5) is connected to the screw rod (3); The filter device (2) comprises a filter plate (2-1), a filter screen (2-2) and a magnetic attraction device (2-3); a threaded hole (2-11) is arranged in the middle of the filter plate (2-1); the threaded hole (2-11) is threadedly connected to the screw rod (3); a filter screen slot (2-12) is arranged at the bottom of the filter plate (2-1); the filter screen (2-2) is installed in the filter screen slot (2-12); a plurality of drain ports (2-13) are arranged at the bottom of the filter screen slot (2-12); a cavity (2-14) is arranged between the plurality of drain ports (2-13); and the magnetic attraction device (2-3) is fixed in the cavity (2-14).

2. A pickling liquid primary filtration device according to claim 1, characterized in that: The drainage port (2-13) is located on one side of the filter slot (2-12) and has a bevel structure.

3. The pickling liquid primary filtration device according to claim 1, characterized in that: The magnetic attraction device (2-3) is an electromagnet.

4. The pickling liquid primary filtration device according to claim 1, characterized in that: The filter screen (2-2) is snap-connected to the filter screen slot (2-12).

5. The pickling liquid primary filtration device according to claim 1, characterized in that: A rotating shaft slot (3-1) is provided at the bottom of the screw rod (3), a limiting slot (3-2) is provided on the inner wall of the rotating shaft slot (3-1), and a limiting block (5-1) is provided on the outer periphery of one end of the rotating shaft (5) connected to the screw rod (3).

Images