In-situ quick-release magnetic powder recovery device

Abstract

The utility model relates to the technical field of powder recovery devices, and provides an in-situ quick-release magnetic powder recovery device which comprises a control power supply, an opening and closing recovery container, a funnel connecting part, a first splicing pipeline, a first pipeline, a first push rod, an electroplating part, a second pipeline, a water pump, a third pipeline, a second splicing pipeline and a second push rod, the upper portion of the opening and closing recycling container communicates with the upper portion of the electroplating part through a first pipeline, the lower portion of the opening and closing recycling container communicates with the lower portion of the electroplating part through a funnel connecting part, a second pipeline, a water pump and a third pipeline in sequence, and the annular electromagnets are circumferentially distributed on the outer side of a container body formed by the first recycling part and the second recycling part. The control power source is electrically connected with the annular electromagnet, the electromagnetic inner wall is circumferentially distributed on the inner side of the container body, and the drainage mechanism is arranged above the inner side of the opening and closing recycling container. The production efficiency can be improved, the cost is reduced, the environment is protected, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder recovery devices, in particular to an in-situ quick-detachable magnetic powder recovery device. Background Art

[0002] Magnetic powder materials are widely used in electromagnetic wave shielding / absorption, magnetic material preparation, magnetic recording media, medical diagnosis, environmental management and other fields. With the acceleration of industrialization and the adjustment of industrial structure, powders with magnetic materials coated on the surface and a large amount of discarded magnetic powder materials have also been produced. For example, by nickel plating on carbon fiber, not only can the conductivity and magnetic loss performance of its surface be enhanced, but also electromagnetic radiation can be effectively shielded to ensure the stable operation of equipment and systems. While the technology in this field is developing, the collection or recycling of magnetic powders and magnetic composite powders in the processes of electroplating, electrolysis, coating, impurity removal, etc. has also become a major problem.

[0003] In the prior art, magnetic powders are prepared by placing a solution containing magnetic powders in a container for precipitation, and then separating the solvent in the upper layer from the magnetic powders in the lower layer after the solid and liquid layers are separated. However, this will result in a long precipitation time for the solution, low efficiency in collecting magnetic powders, and a long recycling cycle for the solvent, which is not conducive to large-scale production. The particle size of the powder material is usually small, and due to differences in the thickness and uniformity of the coating, it is difficult to achieve effective separation during the collection process. Powders with different coating thicknesses of magnetic materials are often mixed, which greatly reduces the performance of the magnetic powder material and limits its wide application.

[0004] The Chinese utility model patent with the announcement number CN201552056U discloses a magnetic powder collection device, which includes a liquid level tank, a material tank, a clarification tank, a feed pipe, a magnetic drum, a motor and a bracket. The working principle of the device is as follows: the slurry enters the liquid level tank through the feed pipe, a part of the magnetic drum is located in the liquid level tank, the motor drives the magnetic drum to rotate to suck out the magnetic powder, and the non-magnetic impurities remain in the liquid level tank, the scraper scrapes the magnetic powder on the magnetic drum and drops it into the material tank, the discharge valve at the bottom of the material tank is opened to obtain the concentrated slurry of the magnetic powder, and the concentrated slurry of the magnetic powder is dried to obtain the magnetic powder. The solution with a lower concentration in the upper layer of the material tank flows back to the liquid level tank through the guide pipe, and is adsorbed again by the magnetic drum. The adsorbed solution in the liquid level tank overflows into the clarification tank through the connection between the liquid level tank and the clarification tank, and the magnetic plate in the clarification tank performs secondary adsorption on the magnetic powder in the solution. In actual application, the equipment has the following shortcomings: 1. The contact area between the magnetic drum and the liquid containing magnetic powder materials is small during rotation, and the adsorbed powder may fall off and the liquid may splash during rotation; 2. The distance between the drum and the powder at different depths in the liquid is different, and the material uniformity of the obtained magnetic powder cannot be guaranteed; 3. The multiple magnetic plates at the rear will cause the powder material to deposit, making it difficult to separate.

[0005] The Chinese invention patent with announcement number CN105149602B discloses a method for preparing amorphous nano soft magnetic powder and a special device for collecting the same. The operation method of the device is as follows: the soft magnetic powder obtained after laser ablation is uniformly pumped into a powder collection tank by a submersible pump to pump the circulating liquid in a glass container. The outer wall and bottom of the powder collection tank are provided with electromagnets to collect the prepared soft magnetic powder on the inner wall and bottom of the powder collection tank. Another submersible pump uniformly pumps the circulating liquid in the powder collection tank to the glass container. The cycle is repeated until all the processed samples are converted into soft magnetic powder and collected on the inner wall and bottom of the powder collection tank and taken out. In practical applications, the device has the following deficiencies: 1. The magnetic powder is mixed with the solution in the container, and the solution of the magnetic powder is placed in the container to precipitate. The powder will settle and gather at the bottom and cannot be efficiently separated by magnetic attraction; 2. The precipitation time of the solution is long, the collection efficiency of the magnetic powder is low, the solvent cannot be automatically circulated and the recycling cycle is long; 3. Due to differences in the thickness and uniformity of the coating, powders with different coating thicknesses of magnetic materials are mixed during the collection process, which has great limitations.

[0006] Therefore, how to provide a magnetic powder material recovery device that can efficiently collect magnetic powder materials while separating magnetic powder materials with different levels of coatings has become a technical problem that needs to be solved urgently. Utility Model Content

[0007] In view of this, in order to overcome the deficiencies of the prior art, the utility model aims to provide an in-situ quick-detachable magnetic powder recovery device.

[0008] The utility model provides an in-situ quick-detachable magnetic powder recovery device, which comprises: a control power supply, an opening and closing recovery container, a funnel connection part, a first splicing pipeline, a first pipeline, a first push rod, an electroplating part, a second pipeline, a water pump, a third pipeline, a second splicing pipeline and a second push rod, the upper part of the opening and closing recovery container is connected with the upper part of the electroplating part through the first pipeline, the lower part of the opening and closing recovery container is connected with the lower part of the electroplating part through the funnel connection part, the second pipeline, the water pump and the third pipeline in sequence, the opening and closing recovery container comprises a first recovery part, a second recovery part, an annular electromagnet and an electromagnet inner wall, the first recovery part Symmetrically arranged and tightly connected with the second recovery part, the annular electromagnet is circumferentially distributed on the outside of the container body formed by the first recovery part and the second recovery part, the control power supply is electrically connected to the annular electromagnet, the electromagnetic inner wall is circumferentially distributed on the inside of the container body formed by the first recovery part and the second recovery part, the first drainage part with a rotatable front end is arranged on the inner upper part of the first recovery part, the second drainage part with a rotatable front end is arranged on the inner upper part of the second recovery part, the first spliced ​​pipe is arranged in the first pipe and can move up and down under the action of the first pushing rod, and the second spliced ​​pipe is arranged in the second pipe and can move up and down under the action of the second pushing rod.

[0009] Preferably, in the in-situ quick-detachable magnetic powder recovery device of the present invention, the first recovery part body of the first recovery part is semi-cylindrical as a whole, and first sealing connection parts integrally connected to the first recovery part body are provided at two side ends of the first recovery part body.

[0010] Preferably, in the in-situ quick-detachable magnetic powder recovery device of the utility model, the second recovery part body of the second recovery part is semi-cylindrical as a whole, and the two side ends of the second recovery part body are provided with second sealing connection parts which are integrally connected with the second recovery part body, and the first sealing connection part and the second sealing connection part are fixedly connected by a first fastener.

[0011] Preferably, in the in-situ quick-detachable magnetic powder recovery device of the utility model, the first drainage part includes an inner end of the first drainage part, a front end of the first drainage part and a first rotating axis, one end of the inner end of the first drainage part is integrally connected to the inner wall of the first recovery part, the other end of the inner end of the first drainage part is connected to the front end of the first drainage part through the first rotating axis, the front end of the first drainage part can rotate around the first rotating axis, and a first drainage hole is arranged on the inner end of the first drainage part. When the inner end of the first drainage part and the front end of the first drainage part are collinear, the first drainage part is tilted upward.

[0012] Preferably, in the in-situ quick-disassembly magnetic powder recovery device of the utility model, the second drainage part includes an inner end of the second drainage part, a front end of the second drainage part and a second rotating shaft, one end of the inner end of the second drainage part is integrally connected to the inner wall of the second recovery part, the other end of the inner end of the second drainage part is connected to the front end of the second drainage part through the second rotating shaft, the front end of the second drainage part can rotate around the second rotating shaft, and a second drainage hole is provided on the inner end of the second drainage part. When the inner end of the second drainage part is in line with the front end of the second drainage part, the second drainage part is tilted upward.

[0013] Preferably, in the in-situ quick-detachable magnetic powder recovery device of the utility model, the first push rod is fixedly connected to the upper part of the first spliced ​​pipe, and a first positioning seat is provided on the first pipe. The first push rod is fixed and limited by assembling the second fastener with the first push rod and the first positioning seat.

[0014] Preferably, in the in-situ quick-detachable magnetic powder recovery device of the utility model, the second push rod is fixedly connected to the lower part of the second spliced ​​pipe, and a second positioning seat is provided on the second pipe. The second push rod is fixed and limited by assembling the third fastener with the second push rod and the second positioning seat.

[0015] Preferably, in the in-situ quick-disassembly magnetic powder recovery device of the present invention, the total length of the first spliced ​​pipe and the second spliced ​​pipe is equal to the total vertical length of the opening and closing recovery container and the funnel connection part.

[0016] Preferably, in the in-situ quick-release magnetic powder recovery device of the utility model, the electromagnetic inner wall is composed of a multi-layer electromagnetic material in a threaded shape, and the electromagnetic inner wall approaches the axis of the opening and closing recovery container from top to bottom.

[0017] Preferably, in the in-situ quick-detachable magnetic powder recovery device of the present invention, a drain valve is provided on the side of the funnel connecting portion.

[0018] The in-situ quick-disassembly magnetic powder recovery device of the utility model has the following beneficial technical effects through comprehensive structural design:

[0019] 1. The multi-level electromagnetic inner wall and annular electromagnet can effectively improve the adsorption and separation efficiency of magnetic powder;

[0020] 2. It can be quickly adjusted according to changes in processing volume and working environment, which is convenient for cleaning and maintenance. It can realize powder collection and device disassembly without affecting the device cycle, thus improving the scope of application and flexibility of the equipment;

[0021] 3. Through the recycling of plating solution, the consumption of chemical solvents and waste emissions are significantly reduced, the material cost is reduced, the recycling of related solutions is achieved, and the impact of production activities on the environment is reduced;

[0022] 4. Simplify the operation process and facilitate user operation. For example, the setting of components such as rotatable drainage devices and adjustable electromagnets allows operators to easily control the equipment and make precise adjustments to meet different production needs. In addition, spliced ​​pipes and open and close recovery containers assembled by fasteners facilitate quick assembly and disassembly, reducing the requirements for operator skills.

[0023] 5. It can achieve purer magnetic powder collection, thus improving product quality. The precise separation process ensures the uniformity and purity of magnetic powder. For example, when coating the surface of powder material with magnetic material, the flow rate and magnetic strength can be controlled to screen out magnetic powder material with the required coating thickness, which helps to improve the performance of the final product, especially in terms of electromagnetic compatibility and magnetic loss performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is an exemplary diagram of an in-situ quick-disassembly magnetic powder recovery device according to an embodiment of the utility model;

[0026] Figure 2 It is a top view of an exemplary diagram of a recovery container in an in-situ quick-disassembly magnetic powder recovery device according to an embodiment of the utility model;

[0027] Figure 3 This is a partial structural example diagram of an in-situ quick-disassembly magnetic powder recovery device according to an embodiment of the utility model;

[0028] Figure 4 Another exemplary diagram of an in-situ quick-disassembly magnetic powder recovery device according to an embodiment of the utility model;

[0029] In the figure, A-control power supply, B-opening and closing recovery container, C-funnel connection part, D-first splicing pipe, E-first pipe, F-first push rod, H-electroplating part, I-second pipe, J-water pump, K-third pipe, L-second splicing pipe, M-second push rod, B1-first recovery part, B2-second recovery part, B3-ring electromagnet, B4-electromagnet inner wall, B11-first recovery part body, B12-first sealing connection part, B21-second recovery part body, B2 2-second sealing connection part, G-first fastener, C1-drain valve, B5-first drainage part, B6-second drainage part, B51-inner end of the first drainage part, B52-front end of the first drainage part, B53-first rotating axis, B54-first drainage hole, B61-inner end of the second drainage part, B62-front end of the second drainage part, B63-second rotating axis, B64-second drainage hole, E1-first positioning seat, F1-second fastener, I1-second positioning seat, M1-third fastener. DETAILED DESCRIPTION

[0030] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0031] Figure 1 This is an example diagram of an in-situ quick-disassembly magnetic powder recovery device according to an embodiment of the utility model. Figure 1 As shown, the in-situ quick-detachable magnetic powder recovery device of this embodiment includes: a control power supply A, an opening and closing recovery container B, a funnel connecting part C, a first splicing pipe D, a first pipe E, a first push rod F, an electroplating part H, a second pipe I, a water pump J, a third pipe K, a second splicing pipe L and a second push rod M.

[0032] As an optional example, the upper part of the opening and closing recovery container B is connected to the upper part of the electroplating part H through the first pipe E, and the lower part of the opening and closing recovery container B is connected to the lower part of the electroplating part H through the funnel connection part C, the second pipe I, the water pump J and the third pipe K in sequence.

[0033] Figure 2 FIG. 1 is a top view of a recovery container in an in-situ quick-disassembly magnetic powder recovery device according to an embodiment of the utility model. Figure 1 and Figure 2As shown, the opening and closing recovery container B includes a first recovery part B1, a second recovery part B2, an annular electromagnet B3 and an electromagnetic inner wall B4, and the first recovery part B1 and the second recovery part B2 are symmetrically arranged and fastened. As an optional example, the first recovery part body B11 of the first recovery part B1 is semi-cylindrical as a whole, and the two side ends of the first recovery part body B11 are provided with a first sealing connection part B12 integrally connected with the first recovery part body B11, and the second recovery part body B21 of the second recovery part B2 is semi-cylindrical as a whole, and the two side ends of the second recovery part body B21 are provided with a second sealing connection part B22 integrally connected with the second recovery part body B21, and the first sealing connection part B12 and the second sealing connection part B22 are fixedly connected by a first fastener G. The arrangement of the first recovery part B1 and the second recovery part B2 enables the device to be quickly adjusted according to changes in the processing volume and the working environment, and is convenient for cleaning and maintenance. When it is necessary to recycle powder materials, the internal pipeline can be spliced, which does not affect the circulation of the device, and can realize powder collection and disassembly of the device, thereby improving the scope of application and flexibility of the equipment.

[0034] As an optional example, in the in-situ quick-release magnetic powder recovery device of the present embodiment, the annular electromagnet B3 is circumferentially distributed on the outside of the container body formed by the first recovery part B1 and the second recovery part B2. In actual applications, the annular electromagnet B3 is fixed to the outside of the opening and closing recovery container B by glue, and the control power supply A is electrically connected to the annular electromagnet B3. The electromagnetic inner wall B4 is circumferentially distributed on the inside of the container body formed by the first recovery part B1 and the second recovery part B2. In actual applications, the electromagnetic inner wall B4 is composed of a threaded multi-level electromagnetic material, and the electromagnetic inner wall B4 approaches the axis of the opening and closing recovery container B from top to bottom. The design of the multi-level electromagnetic material makes the magnetic lines of force more evenly distributed, and can simultaneously adsorb magnetic powders at different levels, reducing the possibility of omissions in a single process. This efficient recovery mechanism reduces the waste of raw materials and improves the economy of overall production.

[0035] A drain valve C1 is provided on the side of the funnel connection part C. In practical applications, the upper part of the funnel connection part C is threadedly connected to the opening and closing recovery container B, and the lower part of the funnel connection part C is fixedly connected to the second pipeline I by welding.

[0036] As an optional example, a first drainage portion B5 whose front end can rotate is provided at the inner upper portion of the first recovery portion B1, and a second drainage portion B6 whose front end can rotate is provided at the inner upper portion of the second recovery portion B2.

[0037] Figure 3 This is a partial structural example diagram of an in-situ quick-disassembly magnetic powder recovery device according to an embodiment of the utility model, such as Figure 1 , Figure 2 and Figure 3As shown, the first drainage portion B5 includes a first drainage portion inner end B51, a first drainage portion front end B52 and a first rotation axis B53, one end of the first drainage portion inner end B51 is integrally connected to the inner wall of the first recovery portion B1, the other end of the first drainage portion inner end B51 is connected to the first drainage portion front end B52 through the first rotation axis B53, the first drainage portion front end B52 can rotate around the first rotation axis B53, and a first drainage hole B54 is provided on the first drainage portion inner end B51. When the first drainage portion inner end B51 and the first drainage portion front end B52 are in a collinear relationship, the first drainage portion B5 is tilted upward.

[0038] The second drainage portion B6 includes a second drainage portion inner end B61, a second drainage portion front end B62, and a second rotation axis B63. One end of the second drainage portion inner end B61 is integrally connected to the inner wall of the second recovery portion B2. The other end of the second drainage portion inner end B61 is connected to the second drainage portion front end B62 via the second rotation axis B63. The second drainage portion front end B62 can rotate around the second rotation axis B63. A second drainage hole B64 is provided on the second drainage portion inner end B61. When the second drainage portion inner end B61 and the second drainage portion front end B62 are in a collinear relationship, the second drainage portion B6 is tilted upward.

[0039] In actual application, the first drainage part B5 and the second drainage part B6 constitute a drainage mechanism, which is arranged on the upper inner side of the openable and closable recovery container B.

[0040] like Figure 1 As shown, in the in-situ quick-detachable magnetic powder recovery device of this embodiment, the first spliced ​​pipe D is arranged in the first pipe E and can move up and down under the action of the first push rod F, and the second spliced ​​pipe L is arranged in the second pipe I and can move up and down under the action of the second push rod M.

[0041] As an optional example, the first push rod F is fixedly connected to the upper part of the first spliced ​​pipe D, and a first positioning seat E1 is arranged on the first pipe E. The first push rod F is fixedly limited by assembling the second fastener F1 with the first push rod F and the first positioning seat E1. For example, a plurality of assembly holes are arranged on the first push rod F, and the first positioning seat E1 is fixedly connected and assembled by the second fastener F1 and the assembly holes.

[0042] The second push rod M is fixedly connected to the lower part of the second spliced ​​pipe L. A second positioning seat I1 is provided on the second pipe I. The second push rod M is fixedly limited by assembling the third fastener M1 with the second push rod M and the second positioning seat I1.

[0043] It should be noted that, in this embodiment, the total length of the first spliced ​​pipe D and the second spliced ​​pipe I is equal to the total vertical length of the opening and closing recovery container B and the funnel connecting part C.

[0044] The operating principle of the in-situ quick-disassembly magnetic powder recovery device of this embodiment is as follows:

[0045] In the first step, when the powder material is in the electroplating process, the first splicing pipe D and the second splicing pipe L are adjusted to be closed as follows: Figure 4 As shown, the powder material and the plating liquid circulate in the plating part H and the first pipe E, the second pipe I and the third pipe K under the push of the water pump J. During the plating process, the annular electromagnet B3 is in a closed state, and the first rotating shaft B53 and the second rotating shaft B63 are adjusted to make the front end B52 of the first drainage part and the front end B62 of the second drainage part in a downwardly open state;

[0046] Step 2: After the electroplating is completed, turn off the power of the electroplating section H, keep the water pump J turned on, and adjust the flow rate as needed. The first push rod F is used to adjust the first spliced ​​pipe D to rise, and the second push rod M is used to adjust the second spliced ​​pipe L to fall.

[0047] The third step is to adjust the first rotating axis B53 and the second rotating axis B63 so that the front end B52 of the first drainage part and the front end B62 of the second drainage part are in a closed state, and the magnetic powder and liquid are drained to the first drainage hole B54 and the second drainage hole B64. The output size of the control power supply A is turned on and adjusted, and the magnetic powder and liquid pass downward through the electromagnetic inner wall B4 in the opening and closing recovery container B. The magnetic powder that meets the requirements is adsorbed therein, and the remaining powder and plating liquid flow out of the opening and closing recovery container B and re-enter the plating part H. This embodiment significantly reduces the consumption of chemical solvents and waste emissions through the recycling of plating liquid, reduces material costs, realizes the recycling of related solutions, and reduces the impact of production activities on the environment.

[0048] Step 4: The magnetic powder material has been adsorbed on the surface of the electromagnetic inner wall B4 in the open and close recovery container B, the magnetic size of the annular electromagnet B3 is maintained, and the first splicing pipe D and the second splicing pipe L are adjusted to close. At this time, the subsequent separation work will not affect the work of the electroplating part H;

[0049] The fifth step is to close the first spliced ​​pipe D and the second spliced ​​pipe L, and allow the remaining small amount of liquid in the open and close recovery container B to flow into the funnel connection part C for temporary storage. If the liquid is full, open the drain valve C1 to drain it completely. At this time, open the first fastener G, open and disassemble the two semi-cylindrical first recovery parts B1 and second recovery parts B2 of the open and close recovery container B, turn off the control power supply A, and put the magnetic powder material into the collection container. After drying, the required magnetic powder material is obtained.

[0050] The in-situ quick-disassembly magnetic powder recovery device of the utility model has the following beneficial technical effects through comprehensive structural design:

[0051] 1. The multi-level electromagnetic inner wall and annular electromagnet can effectively improve the adsorption and separation efficiency of magnetic powder;

[0052] 2. It can be quickly adjusted according to changes in processing volume and working environment, which is convenient for cleaning and maintenance. It can realize powder collection and device disassembly without affecting the device cycle, thus improving the scope of application and flexibility of the equipment;

[0053] 3. Through the recycling of plating solution, the consumption of chemical solvents and waste emissions are significantly reduced, the material cost is reduced, the recycling of related solutions is achieved, and the impact of production activities on the environment is reduced;

[0054] 4. Simplify the operation process and facilitate user operation. For example, the setting of components such as rotatable drainage devices and adjustable electromagnets allows operators to easily control the equipment and make precise adjustments to meet different production needs. In addition, spliced ​​pipes and open and close recovery containers assembled by fasteners facilitate quick assembly and disassembly, reducing the requirements for operator skills.

[0055] 5. It can achieve purer magnetic powder collection, thus improving product quality. The precise separation process ensures the uniformity and purity of magnetic powder. For example, when coating the surface of powder material with magnetic material, the flow rate and magnetic strength can be controlled to screen out magnetic powder material with the required coating thickness, which helps to improve the performance of the final product, especially in terms of electromagnetic compatibility and magnetic loss performance.

[0056] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An in-situ quick-release magnetic powder recovery device, characterized in that: The in-situ quick-detachable magnetic powder recovery device comprises: a control power supply, an opening and closing recovery container, a funnel connection part, a first splicing pipe, a first pipe, a first push rod, an electroplating part, a second pipe, a water pump, a third pipe, a second splicing pipe and a second push rod; the upper part of the opening and closing recovery container is connected with the upper part of the electroplating part through the first pipe, and the lower part of the opening and closing recovery container is connected with the lower part of the electroplating part through the funnel connection part, the second pipe, the water pump and the third pipe in sequence; the opening and closing recovery container comprises a first recovery part, a second recovery part, an annular electromagnet and an electromagnetic inner wall; the first recovery part and the second recovery part are symmetrically arranged and tightly connected; the annular electromagnets are circumferentially distributed in the first recovery part The outer side of the container body formed by the first recovery part and the second recovery part, the control power supply is electrically connected to the annular electromagnet, the electromagnetic inner wall is circumferentially distributed on the inner side of the container body formed by the first recovery part and the second recovery part, the first drainage part with a rotatable front end is arranged on the inner upper part of the first recovery part, the second drainage part with a rotatable front end is arranged on the inner upper part of the second recovery part, the first spliced ​​pipe is arranged in the first pipe and can move up and down under the action of the first pushing rod, the second spliced ​​pipe is arranged in the second pipe and can move up and down under the action of the second pushing rod, the electromagnetic inner wall is composed of a threaded multi-level electromagnetic material, and the electromagnetic inner wall approaches the axis of the opening and closing recovery container from top to bottom.

2. The in-situ quick-release magnetic powder recovery device according to claim 1, characterized in that: The first recovery part body of the first recovery part is semi-cylindrical as a whole, and first sealing connection parts integrally connected with the first recovery part body are arranged at two side ends of the first recovery part body.

3. The in-situ quick-release magnetic powder recovery device according to claim 2, characterized in that: The second recovery part body of the second recovery part is semi-cylindrical as a whole, and second sealing connection parts integrally connected to the second recovery part body are arranged at two side ends of the second recovery part body, and the first sealing connection part and the second sealing connection part are fixedly connected by a first fastener.

4. The in-situ quick-release magnetic powder recovery device according to claim 1, characterized in that: The first drainage portion includes an inner end of the first drainage portion, a front end of the first drainage portion and a first rotating axis. One end of the inner end of the first drainage portion is integrally connected to the inner wall of the first recovery portion, and the other end of the inner end of the first drainage portion is connected to the front end of the first drainage portion through the first rotating axis. The front end of the first drainage portion can rotate around the first rotating axis. A first drainage hole is arranged on the inner end of the first drainage portion. When the inner end of the first drainage portion and the front end of the first drainage portion are collinear, the first drainage portion is tilted upward.

5. The in-situ quick-release magnetic powder recovery device according to claim 1, characterized in that: The second drainage portion includes an inner end of the second drainage portion, a front end of the second drainage portion and a second rotating axis. One end of the inner end of the second drainage portion is integrally connected to the inner wall of the second recovery portion, and the other end of the inner end of the second drainage portion is connected to the front end of the second drainage portion through the second rotating axis. The front end of the second drainage portion can rotate around the second rotating axis. A second drainage hole is arranged on the inner end of the second drainage portion. When the inner end of the second drainage portion and the front end of the second drainage portion are collinear, the second drainage portion tilts upward.

6. The in-situ quick-release magnetic powder recovery device according to claim 1, characterized in that: The first push rod is fixedly connected to the upper part of the first spliced ​​pipe, and a first positioning seat is arranged on the first pipe. The first push rod is fixedly limited by assembling the second fastener, the first push rod and the first positioning seat.

7. The in-situ quick-release magnetic powder recovery device according to claim 1, characterized in that: The second push rod is fixedly connected to the lower part of the second spliced ​​pipe, and a second positioning seat is arranged on the second pipe. The second push rod is fixedly limited by assembling the third fastener, the second push rod and the second positioning seat.

8. The in-situ quick-release magnetic powder recovery device according to claim 1, characterized in that: The total length of the first spliced ​​pipe and the second spliced ​​pipe is equal to the total vertical length of the opening and closing recovery container and the funnel connection part.

9. The in-situ quick-release magnetic powder recovery device according to claim 1, characterized in that: A drain valve is arranged on the side of the funnel connection part.

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