Metal foreign matter filtering device and negative pressure dust collecting device

Abstract

The utility model discloses a metal foreign matter filtering device which comprises a quick-release connector, the quick-release connector comprises a pipe part, and the pipe part comprises a bottom and a top which are located at the two ends of the length of the pipe part respectively; a flange protruding out of the pipe part is arranged on the periphery of the top and the pipe part. The magnetic part is arranged on the inner wall of the pipe part; the pipeline connector comprises a tubular connecting part, the tubular connecting part is hooped on the periphery of the flange, and a dust collection hose connector is arranged at one end, far away from the quick release connector, of the tubular connecting part. When the quick release connector is used, the bottom of the pipe part is inserted into a negative pressure pipeline, and the quick release connector is stably connected with the negative pressure pipeline through the pipeline connector; in the working process, the magnetic piece on the inner wall of the pipe part can attract metal impurities in materials passing through the pipe part, and metal foreign matter in powder is extracted out; when metal impurities in the metal foreign matter filtering device need to be cleaned, negative pressure does not need to be closed, after the pipeline connector is loosened, the pipe part can be directly drawn out from the negative pressure pipeline, and rapid disassembly is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal foreign matter cleaning devices for negative pressure pipelines, and more specifically, to a negative pressure dust collecting device for a metal foreign matter filtering device. Background Art

[0002] Fine powder will be generated during the production and processing of positive electrode materials, so it is necessary to collect the fine powder in the workshop regularly. The method is to use a high negative pressure pipe to connect the hose and collect the fine powder through the negative pressure pipe. The fine powder after collection is collectively called dust collection material, which is usually disposed of as waste and has certain economic value.

[0003] Based on the fact that when negative pressure is used to collect materials in the factory, metal impurities such as trays, packaging bags, etc. will be more or less adsorbed. When the dust collection material is recycled, the metal impurities need to be strictly treated. At present, there is a device that uses a magnetic iron removal device to remove metal impurities from the adsorption source. For example, the utility model with the publication number CN215997071U discloses a pipeline iron removal device, including a pipeline, a feed end and a discharge end of the pipeline, a side wall of the pipeline is provided with an opening, and a sealing plate that can open and close the opening is provided at the opening. Three magnetic sources are fixedly provided on the periphery of the pipeline, and the magnet is in a long strip shape. The length direction of the magnet is consistent with the height direction of the pipeline. The side wall of the pipeline is provided with a sealing plate, and the sealing plate is opened. Through the opening, the iron filings adsorbed on the inner wall of the pipeline are cleaned. It has the following problems: 1. Since the negative pressure system has a large suction force, the material flow speed is fast, and the magnetic adsorption force of the external magnet is insufficient; 2. The inner wall opening can be used to adsorb iron filings, but if the negative pressure system is not closed when cleaning is required, the iron filings may be sucked into the pipeline again.

[0004] In addition, other existing magnetic iron removal devices also have the problem of poor adsorption effect and / or difficulty in disassembly and cleaning.

[0005] Therefore, how to provide a metal foreign matter filtering device with strong suction and convenient disassembly and cleaning has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The utility model aims to provide a metal foreign body filtering device which has strong suction force and is convenient for cleaning after disassembly.

[0007] The utility model provides a metal foreign body filtering device, which is used for being detachably mounted on the free end of a negative pressure pipeline, and comprises:

[0008] A quick-release connector, wherein the quick-release connector has a tube portion that can be inserted into the negative pressure pipeline, a filter unit is provided at the bottom of the tube portion, and a flange for limiting the position to the free end is provided at the top of the tube portion;

[0009] The magnetic part is arranged on the inner wall of the tube.

[0010] Optionally, the magnetic member is an annular magnetic member, and the annular magnetic member is embedded in the inner wall of the tube.

[0011] Optionally, there are multiple annular magnetic parts, and the multiple annular magnetic parts are coaxially stacked along the length direction of the tube.

[0012] Optionally, the magnetic member is a rare earth permanent magnet, and the surface of the rare earth permanent magnet is coated with a stainless steel protective layer.

[0013] Optionally, the metal foreign matter filtering device further includes a limiting member, which can axially limit the magnetic member.

[0014] Optionally, the limiting member is a baffle, and the baffle includes an avoidance portion penetrating through the surface thereof, and the avoidance portion is communicated with the inner cavity of the tube portion.

[0015] Optionally, the baffle has a mounting end and a limiting end, the mounting end is detachably connected to the flange, the limiting end extends radially along the tube portion, and the orthographic projection of the magnetic member on the baffle is located between the mounting end and the limiting end.

[0016] Optionally, the filter unit is a dustproof net, and the interception diameter of the dustproof net is selected from 0.5cm-1cm.

[0017] The second aspect of the utility model discloses a negative pressure dust collecting device, comprising: a negative pressure pipeline, on which is installed a metal foreign matter filtering device of any one of the first aspects of the utility model; and a pipeline connector, one end of which is used to be fixed on the outer wall of the free end of the negative pressure pipeline, and the other end of which is provided with a dust suction hose connector.

[0018] Optionally, the pipeline connector further comprises a connector cover plate, and the connector cover plate is openably and closably arranged on the dust suction hose connector.

[0019] According to the technical content disclosed in the utility model, the following beneficial effects are achieved:

[0020] The utility model provides a metal foreign body filtering device, wherein the quick-release joint has a pipe portion that can be extended into the negative pressure pipeline, a filter unit is arranged at the bottom of the pipe portion, a flange for limiting to the free end is arranged at the top of the pipe portion, and a magnetic part is arranged on the inner side wall of the pipe portion. When in use, the quick-release joint is inserted into the negative pressure pipeline from the bottom of the pipe portion until the end face of the flange abuts against the end face of the negative pressure pipeline and the quick-release joint is installed in place. At this time, the inner side wall of the pipe portion can absorb the metal impurities in the material passing through the pipe portion, and extract the metal foreign bodies in the powder. Since the magnetic part is located between the inner wall of the pipe portion and the metal foreign bodies without hard isolation, the suction force is stronger; the filter unit is arranged at the bottom of the pipe portion to filter the impurities that cannot be magnetically adsorbed that enter the pipe portion, ensuring that there are no foreign bodies in the gas entering the negative pressure pipeline. When it is necessary to clean the metal impurities in the metal foreign body filtering device, there is no need to turn off the negative pressure, and the quick-release joint can be directly pulled out of the negative pressure pipeline, so as to achieve quick disassembly without stopping the machine.

[0021] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] Figure 1 It is an axial partial cross-sectional view of the negative pressure dust collecting device of the utility model.

[0024] Figure 2 It is a radial partial cross-sectional view of the negative pressure dust collecting device of the present utility model.

[0025] Explanation of the reference numerals: 1. Negative pressure pipeline; 2. Dustproof net; 3. Quick-release connector; 31. Pipe; 311. Bottom; 312. Top; 32. Flange; 33. Baffle; 4. Pipe connector; 41. Tubular connecting part; 42. Hoop; 43. Connector cover; 44. Dust suction hose connector; 5. Annular magnetic part. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] See also Figure 1 The first aspect of the utility model discloses a metal foreign matter filtering device, which is used to be detachably installed on the free end of a negative pressure pipeline 1, and includes a dustproof net 2, a quick-release joint 3 and a pipeline connector 4.

[0032] Combination Figure 1 and Figure 2 The quick-release connector 3 includes a tube 31 and a baffle 33. The tube 31 includes a bottom 311 and a top 312 located at two axial ends thereof respectively; the dust screen 2 is arranged at the bottom 311 of the tube 31 as a filtering unit; the outer periphery of the top 312 of the tube 31 is provided with an annular flange 32 protruding from the tube 31, and one end of the flange 32 is axially opened with a threaded hole; the baffle 33 as a limiting member is an annular baffle, which is connected to one side of the top 312 of the quick-release connector 3, specifically, the annular baffle is connected to one axial side of the annular flange 32, the annular baffle is concentric with the tube 31, and the central opening of the annular baffle forms an avoidance portion, which is coaxially arranged with the tube 31 and communicated with the inner cavity of the tube 31 to facilitate the passage of negative pressure wind; the annular baffle has a mounting end and a limiting end, the mounting end is detachably connected to the flange, the limiting end extends along the radial direction of the tube 31, and the positive projection of the magnetic member on the baffle is located between the mounting end and the limiting end. A through hole running through the axial direction is formed at the mounting end of the annular baffle, and the through hole is arranged opposite to the threaded hole of the flange 32 . The annular baffle can be fastened to the flange 32 by screws or threaded rods.

[0033] An annular magnetic part 5 is embedded on the inner wall of the tube 31, and the annular magnetic part 5 is located between the dustproof net 2 and the annular baffle. The limiting end of the annular baffle extends radially along the tube 31 and exceeds the inner edge of the annular magnetic part, or is flush with the inner edge of the annular magnetic part. The dustproof net 2 and the annular baffle block the magnetic part in the direction from the bottom 311 to the top 312, respectively. In this embodiment, the outer diameter of the annular magnetic part 5 is preferably equal to the inner diameter of the tube 31. The interception diameter of the dustproof net 2 is 0.5cm-1cm. The quick-release connector 3 is made of stainless steel. In this embodiment, three annular magnetic parts 5 are provided, and the three annular magnetic parts 5 are stacked in sequence along the length direction of the tube 31 to fill the space between the dustproof net 2 and the annular baffle. The annular magnetic part 5 is a rare earth permanent magnet with a stainless steel coating on the surface.

[0034] It should be noted that there are no special requirements for the built-in annular magnetic part 5 model. The adsorption area and material passing speed can be adjusted by increasing or decreasing the number and adjusting the aperture size to ensure that the optimal magnetic adsorption force is achieved when the negative pressure system is turned on.

[0035] The second aspect of the utility model discloses a negative pressure dust collecting device including a negative pressure pipeline 1, on which is installed a metal foreign matter filtering device of any one of the first aspects of the utility model; and a pipeline connector 4, one end of which is used to be fixed on the outer wall of the free end of the negative pressure pipeline 1, and the other end is provided with a dust suction hose connector 44.

[0036] The pipeline connector 4 includes a tubular connection part 41 and a clamp 42 as a fastener. A vacuum hose connector 44 is provided at one axial end of the tubular connection part 41. The vacuum hose connector 44 is used to connect a hose. A connector cover 43 is hingedly connected to the outer periphery of the vacuum hose connector 44. The connector cover 43 is openably and closably arranged on the vacuum hose connector 44 to cover the vacuum hose connector 44 in the axial direction. The connector cover 43 is spring-resilient. Based on the high negative pressure system, the entire line is opened. If there is a cover after opening, it can prevent foreign matter from being sucked in when not in use and interference waste of suction force.

[0037] When in use, open the connector cover 43, assemble and connect the quick-release connector 3, the dustproof net 2 and the annular magnetic part 5, and then insert the quick-release connector 3 into the negative pressure pipeline 1 from the bottom 311 until the end face of the flange 32 abuts against the axial end face of the negative pressure pipeline 1; the outer diameter of the tube 31 is less than or equal to the inner diameter of the negative pressure pipeline 1, and the outer diameter of the flange 32 is greater than the inner diameter of the negative pressure pipeline 1; preferably, the outer diameter of the flange 32 is equal to the outer diameter of the negative pressure pipeline 1, and the quick-release connector 3 is inserted into the negative pressure pipeline 1. The outer periphery of the rear flange 32 inside the pipeline 1 is flush with the outer periphery of the negative pressure pipeline 1. At this time, the tubular connecting part 41 is sleeved on the outer periphery of the flange 32 and the negative pressure pipeline 1, and the hoop 42 is sleeved on the outer periphery of the tubular connecting part 41. Preferably, the hoop 42 is sleeved on the joint between the flange 32 and the negative pressure pipeline 1, and the hoop 42 is locked to reduce the inner diameter of the tubular connecting part 41 to tighten the quick-release connector 3 and the negative pressure pipeline 1, so that the quick-release connector 3 and the negative pressure pipeline 1 are firmly connected. Then, the dust collection hose is connected to the dust suction hose connector 44 of the pipeline connector 4, and the fine powder is collected by the negative pressure system. When passing through the annular magnetic part 5, the magnetic metal therein will be adsorbed on the annular magnetic part 5, and at the same time, foreign matter in the dust collection material passing through the dustproof net 2 can also be blocked. The modified high negative pressure dust collection can effectively reduce the proportion of magnetic metal and the mixing of foreign matter, and improve product quality. This device can be installed according to needs and is suitable for high negative pressure pipelines of different models.

[0038] In summary, the metal foreign matter filtering device provided by the utility model can be quickly installed and disassembled through the quick-release joint 3, and the magnetic metal adsorbed on the annular magnetic part 5 and the foreign matter blocked on the dustproof net 2 can be cleaned at any time without closing the negative pressure system. The annular magnetic part 5 is installed on the inner wall of the pipe, and has better magnetic adsorption force than the external bar magnet. The annular magnetic part 5 is composed of a plurality of small magnetic rings, which can be replaced separately when the magnetic rings are damaged, and have stronger adsorption force and adsorption area than the bar magnet. The annular magnetic part 5 is fixed and taken out conveniently using the baffle 33. The annular magnetic part 5 can be taken out separately or the quick-release joint 3 can be taken out for cleaning, and the overall negative pressure system does not need to be closed during cleaning.

[0039] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A metal foreign body filtering device, which is used to be detachably mounted on the free end of a negative pressure pipeline, characterized in that: include: A quick-release connector, the quick-release connector having a tube portion that can be inserted into the negative pressure pipeline, a filter unit is provided at the bottom of the tube portion, and a flange for limiting the position to the free end is provided at the top of the tube portion; A magnetic component is arranged on the inner side wall of the tube.

2. The metal foreign matter filtering device according to claim 1, characterized in that: The magnetic component is an annular magnetic component, and the annular magnetic component is embedded in the inner wall of the tube.

3. The metal foreign matter filtering device according to claim 2, characterized in that: There are a plurality of annular magnetic members, and the plurality of annular magnetic members are coaxially stacked along the length direction of the tube.

4. The metal foreign matter filtering device according to any one of claims 1 to 3, characterized in that: The magnetic part is a rare earth permanent magnet, and the surface of the rare earth permanent magnet is covered with a stainless steel protective layer.

5. The metal foreign matter filtering device according to any one of claims 1 to 3, characterized in that: The metal foreign matter filtering device further comprises a limiting member, and the limiting member can axially limit the magnetic member.

6. The metal foreign matter filtering device according to claim 5, characterized in that: The limiting member is a baffle, and the baffle includes an avoidance portion penetrating through the surface thereof, and the avoidance portion is communicated with the inner cavity of the tube portion.

7. The metal foreign matter filtering device according to claim 6, characterized in that: The baffle has a mounting end and a limiting end, the mounting end is detachably connected to the flange, the limiting end extends radially along the tube portion, and the orthographic projection of the magnetic member on the baffle is located between the mounting end and the limiting end.

8. The metal foreign matter filtering device according to any one of claims 1 to 3, characterized in that: The filter unit is a dustproof net, and the interception diameter of the dustproof net is selected from 0.5cm-1cm.

9. A negative pressure dust collecting device, characterized in that: include: A negative pressure pipeline, on which the metal foreign matter filtering device according to any one of claims 1 to 8 is installed; and The pipeline connector has one end for fixing on the outer wall of the free end of the negative pressure pipeline and the other end for being provided with a dust suction hose connector.

10. The negative pressure dust collecting device according to claim 9, characterized in that: The pipeline connector also includes a connector cover plate, and the connector cover plate is openably and closably arranged on the dust suction hose connector.

Images