A neodymium iron boron grinding waste recycling device

Abstract

This utility model discloses a device for recycling finely ground waste from NdFeB grinding, comprising a cover, an adjustment frame on the outside of the cover, a waste separation pipe installed at the end of the cover away from the opening, an exhaust pipe installed at the end of the waste separation pipe away from the cover, and multiple positioning pipes communicating with the inner cavity of the waste separation pipe installed on the bottom surface of the waste separation pipe. Each positioning pipe has a collection box inside, and multiple frames are installed on the open end face of each collection box via hinges. Each frame is inserted into the interior of the waste separation pipe and abuts against the inner wall of the waste separation pipe. Each frame has a filter screen installed inside, and a base plate covering the opening is provided on the outer end face of the multiple positioning pipes. This utility model has a simple structure, solves the problems of difficult fine particle size reduction in NdFeB grinding and avoids separation difficulties caused by contact with liquids, reduces the loss and oxidation of ultrafine powder, and improves the recycling purity and utilization value of waste powder of different particle sizes.

Description

Technical Field

[0001] This utility model relates to the field of neodymium iron boron processing technology, specifically to a neodymium iron boron grinding waste recycling device. Background Technology

[0002] During the grinding process of neodymium iron boron, coarse powder, fine powder, ultrafine powder, oxidized powder, and slurry waste mixed in the grinding fluid are generated. Existing recycling designs generally have problems such as difficulty in separating powder and liquid mixtures, wide particle size distribution making it difficult to classify, easy oxidation and high activity of ultrafine powder, and environmental and safety risks caused by dust emission, resulting in low recycling efficiency and limited reuse value of waste materials.

[0003] The main drawbacks of existing NdFeB grinding waste recycling designs are: difficulty in efficiently separating powders of different particle sizes; ultrafine powder is easily lost with the grinding fluid or oxidized, reducing its recycling value; powder-liquid mixing makes the separation process complex and energy-intensive; the recycling process is prone to dust pollution and safety hazards; overall, it results in low recovery rate, poor purity, and insufficient economic viability for reuse; and after collection, when removing waste or ultrafine powder, vibration and other factors can cause the powder to scatter outwards, polluting the working environment. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a waste recycling device for NdFeB grinding, which solves the problem of difficulty in finely dividing the waste particles during NdFeB grinding and avoids separation difficulties caused by contact with liquid.

[0005] This utility model is achieved through the following technical solution: a neodymium iron boron grinding waste recycling device, including a cover, an adjustment frame on the outside of the cover, a waste separation pipe installed at the end of the cover away from the opening, an exhaust pipe installed at the end of the waste separation pipe away from the cover, a plurality of positioning pipes communicating with the inner cavity of the waste separation pipe installed on the bottom surface of the waste separation pipe, a collection box provided inside the positioning pipe, a plurality of frames installed on the open end face of the collection box through a hinge, the frames are inserted into the inside of the waste separation pipe and abut against the inner wall of the waste separation pipe, a filter screen is installed inside the frames, and a bottom plate covering the opening is provided on the outer end face of the plurality of positioning pipes.

[0006] As a preferred technical solution, both sides of the frame and the collection box are provided with vertical positioning grooves, and positioning strips are installed on both sides of the inside of the waste separation pipe, directly opposite the positioning grooves, and the positioning strips are inserted into the positioning grooves.

[0007] As a preferred technical solution, each of the positioning tubes has an operating port on one side, and the bottom plate protrudes to form a sealing part at the position opposite the operating port. The sealing part extends into the operating port and blocks and seals the operating port. Each of the operating ports has a sliding groove on its end face, and each of the sealing parts is equipped with a sliding strip. The sliding strip is slidably set in the sliding groove, and the cross-section of the sliding groove and the sliding strip is trapezoidal.

[0008] As a preferred technical solution, a first electric push rod is installed between the positioning tubes, and a connecting plate is installed on the piston rod of the first electric push rod. The other end of the connecting plate is fixedly connected to the base plate.

[0009] As a preferred technical solution, a rubber layer is installed on the inner side of the adjustment frame, the rubber layer is fitted to the outer side of the cover, and a fixing seat is installed on the outer side of the adjustment frame, with a second electric push rod installed between the fixing seat and the waste separation pipe.

[0010] As a preferred technical solution, the filter screen consists of a coarse filter screen and a fine filter screen, with the fine filter screen positioned close to the exhaust pipe.

[0011] As a preferred technical solution, all hinge components are torsion spring hinges.

[0012] As a preferred technical solution, the length and width of the frame match the length and width of the collection box opening, and the opening end face of the collection box is flush with the bottom surface of the inner cavity of the waste separation tube.

[0013] As a preferred technical solution, hand-held blocks are installed on the inner sides of the frame.

[0014] The beneficial effects of this utility model are as follows: This utility model has a simple structure, solves the problem of difficulty in finely classifying waste particles during NdFeB grinding and avoids separation difficulties caused by contact with liquids, reduces the loss and oxidation of ultrafine powder, and improves the recycling purity and utilization value of waste powder of different particle sizes. At the same time, the NdFeB grinding equipment can be covered by the adjustable frame, and after the bottom plate is removed, the collection box can be taken out downwards. The movement of the collection box drives the frame, and after the frame moves out in the sliding bar, it can automatically cover the open end face of the collection box, reducing the environmental and safety risks caused by dust emission and improving the overall recycling effect. At the same time, the installation and disassembly of the collection box are convenient, and it is also convenient to clean the filter screen. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model after the bottom plate has been removed;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the frame and collection box of this utility model.

[0020] The components are as follows: 1. Adjustment frame; 2. Cover body; 3. Waste separation pipe; 4. Air extraction pipe; 5. Positioning pipe; 6. Base plate; 7. Sealing part; 8. Sliding strip; 9. First electric push rod; 10. Second electric push rod; 11. Fixed bracket; 12. Operation port; 13. Slide groove; 14. Collection box; 15. Connecting plate; 16. Frame body; 17. Filter screen; 18. Hand block; 19. Positioning groove; 20. Positioning strip. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0023] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model discloses a NdFeB grinding waste recycling device, which includes a cover 2. An adjustment frame 1 is provided on the outside of the cover 2. A waste separation pipe 3 is installed at the end of the cover 2 away from the opening. An exhaust pipe 4 is installed at the end of the waste separation pipe 3 away from the cover 2. Multiple positioning pipes 5 communicating with the inner cavity of the waste separation pipe 3 are installed on the bottom surface of the waste separation pipe 3. Each positioning pipe 5 is provided with a collection box 14 inside. Multiple frames 16 are installed on the open end face of each collection box 14 through a hinge. Each frame 16 is inserted into the interior of the waste separation pipe 3 and is in contact with the inner wall of the waste separation pipe 3. Each frame 16 is provided with a filter screen 17 inside. A bottom plate 6 covering the opening is provided on the outer end face of the multiple positioning pipes 5.

[0025] In this embodiment, both sides of the frame 16 and the collection box 14 are provided with vertical positioning grooves 19, and both sides of the inside of the waste separation pipe 3 are provided with positioning strips 20 opposite to the positioning grooves 19. The positioning strips 20 are inserted into the positioning grooves 19.

[0026] In this embodiment, each side of the positioning tube 5 is provided with an operation port 12, and the bottom plate 6 protrudes to form a sealing part 7 opposite to the operation port 12. The sealing part 7 extends into the operation port 12 and blocks and seals the operation port 12. Each end face of the operation port 12 is provided with a sliding groove 13, and each sealing part 7 is equipped with a sliding strip 8. The sliding strip 8 is slidably disposed in the sliding groove 13. The cross sections of the sliding groove 13 and the sliding strip 8 are trapezoidal.

[0027] The base plate is positioned by using a sliding groove and a sliding strip, allowing it to move only along the sliding groove and preventing it from falling directly off the positioning tube.

[0028] In this embodiment, a first electric push rod 9 is installed between the positioning tubes 5, and a connecting plate 15 is installed on the piston rod of the first electric push rod 9. The other end of the connecting plate 15 is fixedly connected to the base plate 6.

[0029] In this embodiment, a rubber layer is installed on the inner side of the adjusting frame 1, and the rubber layer is fitted to the outer side of the cover 2. A fixing seat is installed on the outer side of the adjusting frame 1, and a second electric push rod 10 is installed between the fixing seat and the waste separation pipe 3. A fixing bracket is installed on the waste separation pipe, and the waste separation pipe is fixed to the top of the factory building by the fixing bracket. The adjusting frame can be moved up and down by the second electric push rod, so that the adjusting frame can cover the outside of the grinding equipment, thereby absorbing the powder generated during the processing.

[0030] The first electric actuator and the second electric actuator are respectively connected to the actuator controller and the power supply, thereby enabling control of the first electric actuator and the second electric actuator.

[0031] In this embodiment, the filter screen 17 consists of a coarse filter screen and a fine filter screen, with the fine filter screen positioned close to the exhaust pipe 4. The coarse filter screen can filter large particles and impurities, while the fine filter screen can filter ultrafine powders.

[0032] In this embodiment, the hinges are all torsion spring hinges. After the frame is removed from the positioning strip, the torsion spring hinges enable the frame to automatically cover the collection box.

[0033] In this embodiment, the length and width of the frame 16 match the length and width of the opening of the collection box 14, and the opening end face of the collection box 14 is flush with the bottom surface of the inner cavity of the waste separation tube 3, so that the frame can cover the opening of the collection box.

[0034] In this embodiment, a hand-held block 18 is installed on the inner side of the frame 16. When the collection box is installed, the hand-held block can be pulled, and the frame can be inserted into the positioning strip through the open operating port, thereby vertically positioning the frame. After the top surface of the frame comes into contact with the waste separation pipe, the collection box moves into place. After the bottom plate is covered, the collection box and the frame can automatically complete the positioning.

[0035] Conversely, when the collection box is removed from the positioning tube, the frame and filter screen are also taken out, making it easier to clean the filter screen and preventing clogging.

[0036] Working principle: When the device is started, the external air extraction equipment generates negative pressure in the waste separation tube through the air extraction pipe, so that the dust-containing airflow generated during the grinding process is drawn in from the opening of the regulating frame and the cover, and is classified through the waste separation tube. Powders of different particle sizes pass through the filter screen in sequence under the action of airflow. Coarse particles are intercepted by the coarse filter screen at the front, while ultrafine powder is collected by the fine filter screen at the back, thereby achieving fine classification of particle size.

[0037] When the collection box needs to be removed, the first electric push rod is activated, causing the piston rod of the first electric push rod to extend and push the connecting plate and the bottom plate to move outward, opening the opening below the positioning tube. At this time, the collection box is caught and automatically falls out along the positioning tube. During the movement of the collection box, the frame moves down with the collection box and gradually separates from the positioning strip in the waste separation tube. When the frame is completely separated, it automatically flips and closes on the opening of the collection box under the action of the torsion spring hinge, effectively preventing the powder from scattering when it is removed.

[0038] After the collection box is completely removed, the first electric push rod can be activated again to return the base plate to its original position, thereby sealing the positioning tube and the operating mask and preventing dust leakage from the inside of the waste separation tube.

[0039] The device achieves efficient, clean, and safe recycling of NdFeB grinding waste through negative pressure powder suction, multi-stage filtration, automatic sealing, and height adjustment, significantly improving the recycling purity and reuse value of the waste.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A neodymium iron boron grinding fraction scrap recycling device, characterized by: The enclosure includes a cover (2), an adjustment frame (1) is provided on the outside of the cover (2), a waste separation pipe (3) is installed at the end of the cover (2) away from the opening, an exhaust pipe (4) is installed at the end of the waste separation pipe (3) away from the cover (2), a plurality of positioning pipes (5) communicating with the inner cavity of the waste separation pipe (3) are installed on the bottom surface of the waste separation pipe (3), a collection box (14) is provided inside the positioning pipe (5), a plurality of frames (16) are installed on the open end face of the collection box (14) through a hinge, the frames (16) are inserted into the inside of the waste separation pipe (3) and are in contact with the inner wall of the waste separation pipe (3), a filter screen (17) is installed inside the frames (16), and a bottom plate (6) covering the opening is provided on the outer end face of the plurality of positioning pipes (5).

2. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: The frame (16) and the collection box (14) are provided with vertical positioning grooves (19) on both sides. Positioning strips (20) are installed on both sides of the waste separation pipe (3) directly opposite the positioning grooves (19). The positioning strips (20) are inserted into the positioning grooves (19).

3. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: One side of the positioning tube (5) is provided with an operation port (12). The bottom plate (6) protrudes from the operation port (12) to form a sealing part (7). The sealing part (7) extends into the operation port (12) and blocks and seals the operation port (12). The end face of the operation port (12) is provided with a sliding groove (13). The sealing part (7) is equipped with a sliding strip (8). The sliding strip (8) is slidably set in the sliding groove (13). The cross-section of the sliding groove (13) and the sliding strip (8) are both trapezoidal.

4. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: A first electric push rod (9) is installed between the positioning tubes (5). A connecting plate (15) is installed on the piston rod of the first electric push rod (9). The other end of the connecting plate (15) is fixedly connected to the base plate (6).

5. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: A rubber layer is installed on the inner side of the adjustment frame (1), and the rubber layer is fitted to the outer side of the cover (2). A fixing seat is installed on the outer side of the adjustment frame (1), and a second electric push rod (10) is installed between the fixing seat and the waste separation pipe (3).

6. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: The filter screen (17) consists of a coarse filter screen and a fine filter screen, with the fine filter screen positioned close to the exhaust pipe (4).

7. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: All hinges are torsion spring hinges.

8. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: The length and width of the frame (16) match the length and width of the opening of the collection box (14), and the opening end face of the collection box (14) is flush with the bottom surface of the inner cavity of the waste separation tube (3).

9. The NdFeB grinding fraction scrap recycling device of claim 1, wherein: Hand-held blocks (18) are installed on the inner side of the frame (16).

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