Alloy powder magnetic suction filtering device

Abstract

The invention provides an alloy powder magnetic suction filtering device, which belongs to the technical field of separating solid materials from solid materials, and comprises a material receiving barrel, a separating unit and a material discharging unit, the separation unit comprises a separation barrel arranged at the top of the material receiving barrel, a separation frame fixedly arranged in the separation barrel and a magnetic attraction assembly arranged on the separation frame in a penetrating mode, the inner diameter of the separation barrel is gradually reduced from top to bottom, and the bottom end of the separation barrel extends into the material receiving barrel; the magnetic attraction assembly comprises a plurality of sets of magnetic attraction mechanisms distributed in the vertical direction, every two adjacent sets of magnetic attraction mechanisms are arranged in a staggered mode, each set of magnetic attraction mechanism comprises a plurality of magnet rods which are sequentially distributed at intervals, and the axial directions of the magnet rods are perpendicular to the plate face of the separation frame. The discharging unit comprises a material storage barrel arranged above the separating unit, and a valve is arranged at the bottom of the material storage barrel. The performance of the cobalt-molybdenum alloy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of separating solid materials from solid materials, and in particular relates to an alloy powder magnetic suction filtering device. Background Art

[0002] Cobalt-molybdenum alloys are usually used in high-temperature or high-strength applications, such as aerospace or chemical equipment. The mixing of cobalt and molybdenum alloys requires a long mixing process. The mixing of cobalt-molybdenum alloys is usually completed in mixing equipment.

[0003] However, cobalt-molybdenum alloy has a high hardness, especially in powder form. During high-speed mixing or long-term stirring, friction with the inner wall of the mixing equipment may cause ferromagnetic impurities to fall off. Even after long-term use of the mixing equipment, scratches or fatigue cracks may appear on the inner wall of the mixing equipment, further increasing the risk of ferromagnetic impurities falling off.

[0004] If ferromagnetic impurities are doped into cobalt-molybdenum alloy, the composition, microstructure and properties of the alloy will change, including changes in mechanical properties, corrosion resistance, heat resistance and wear resistance. Therefore, there is a defect that the performance of cobalt-molybdenum alloy is reduced. Summary of the invention

[0005] The embodiment of the present invention provides an alloy powder magnetic filtration device, which aims to solve the technical problem of reduced performance of cobalt-molybdenum alloy.

[0006] To achieve the above object, the technical solution adopted by the present invention is: to provide an alloy powder magnetic filtration device, comprising: Receiving barrel; A separation unit, comprising a separation cylinder arranged at the top of the material receiving cylinder, a separation frame fixed in the separation cylinder, and a magnetic attraction component passing through the separation frame, wherein the inner diameter of the separation cylinder gradually decreases from top to bottom, and the bottom end of the separation cylinder extends into the material receiving cylinder, and the magnetic attraction component comprises a plurality of groups of magnetic attraction mechanisms distributed in the up-down direction, two adjacent groups of the magnetic attraction mechanisms are staggered, and each group of the magnetic attraction mechanisms comprises a plurality of magnet bars distributed in sequence at intervals, and the axial direction of the magnet bars is perpendicular to the plate surface of the separation frame; and The material discharging unit comprises a material storage barrel arranged above the separation unit, and a valve is arranged at the bottom of the material storage barrel.

[0007] In a possible implementation, a bulk material system is provided between the separation unit and the discharge unit, and the bulk material system includes: A reciprocating unit, comprising two connecting frames and a conveyor disposed between the two connecting frames, wherein the connecting frame is U-shaped, the connecting frame is rotatably connected to the separation cylinder, the connecting frame rotates around the central axis of the separation cylinder, and a gap is left between the end of the conveyor and the connecting frame; A plurality of bulk material boxes are provided on the conveyor and are sequentially spaced apart along the transmission direction of the conveyor, the bulk material boxes are provided with an inlet for receiving alloy powder and an outlet for releasing alloy powder, and the bulk material boxes can pass through the gap; and The rotating unit is connected to the connecting frame and is used to drive the connecting frame to rotate.

[0008] In one possible implementation, a temporary storage chamber connected to the inlet is provided in the bulk material box, a feeding chamber connecting the temporary storage chamber with the outlet is provided in the bulk material box, a feeding roller is rotatably connected in the feeding chamber, the rotation axis of the feeding roller is parallel to the movement direction of the bulk material box, a first driving member transmission-connected to the feeding roller is installed on the bulk material box, and a feeding blade is spirally fixed on the periphery of the feeding roller.

[0009] In one possible implementation, a material guide plate, a telescopic part located below the material guide plate and connected to the bulk material box, and a push plate connected to the telescopic part are provided in the temporary storage chamber. The push plate is also slidably connected to the bulk material box along a first path, and the first path is perpendicular to the movement path of the bulk material box. The telescopic part is used to drive the push plate to slide along the first path.

[0010] In a possible implementation, the guide plate is arranged obliquely, and the fixed end of the guide plate is higher than the free end; When the entrance is in an open state, the telescopic member drives the push plate to slide to the position directly below the material guide plate.

[0011] In a possible implementation, a guide block is provided on the top of the guide plate, a guide groove adapted to the guide block is opened in the up-down direction on the inner wall of the bulk material box, the guide block is slidably arranged in the guide groove, and a hinge axis between the guide plate and the guide block is parallel to the movement direction of the bulk material box; The bottom side of the guide plate and the top side of the push plate are hinged, and the hinge axes of the guide plate and the push plate are parallel to the moving direction of the bulk material box.

[0012] In a possible implementation, a through slot is provided on the inner wall of the bulk material box, and two through slots are provided along the movement direction of the bulk material box; A covering plate is arranged between the two opposite through grooves, and an opening and closing rack is fixedly arranged on the surface of the covering plate along its length direction. An opening and closing gear which meshes with the opening and closing rack is rotatably connected to the outer wall of the bulk material box, and the rotation axis of the opening and closing gear is perpendicular to the movement direction of the bulk material box. A second driving member is installed on the outer wall of the bulk material box, and the second driving member is drivingly connected to the opening and closing gear.

[0013] In a possible implementation, a first transmitter and a second transmitter are installed at the bottom of the storage barrel, a receiver for receiving signals from the first transmitter and the second transmitter is installed on the top wall of the bulk material box, and the receiver, the second driving member and the valve are communicatively connected; When the receiver receives the first transmitter signal, the second driving member is activated, so that the cover plate slides to open the entrance, the valve opens and the valve opens later than the entrance; when the receiver receives the second transmitter signal, the second driving member is activated, so that the cover plate slides to close the entrance, the valve closes and the valve closes earlier than the entrance.

[0014] In a possible implementation, the receiving barrel includes a first splicing block fixedly connected to the separation barrel and a second splicing block arranged relative to the first splicing block, and the first splicing block and the second splicing block are detachably connected; The first assembling block and the second assembling block form a material receiving area, and a material receiving box is placed in the material receiving area.

[0015] In one possible implementation, the separation cylinder includes a first splicing arc fixed to the first splicing block and a second splicing arc arranged relative to the first splicing arc, the first splicing arc and the second splicing arc are detachably connected, and the top of the second splicing block is abutted against or detachably connected to the outer wall of the second splicing arc.

[0016] Compared with the prior art, the alloy powder magnetic filtration device provided by the present invention is that after the valve is opened, the alloy powder in the storage barrel enters the separation barrel, and when the alloy powder passes through the magnet rod, the alloy powder falls from the gap between two magnet rods into the next row of magnet rods, and the alloy powder falls just above the next row of magnet rods, so that the alloy powder is in full contact with the magnet rod, thereby causing ferromagnetic impurities to be adsorbed on the periphery of the magnet rod, reducing the content of ferromagnetic impurities in the alloy powder, thereby improving the performance of the alloy powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the alloy powder magnetic filtration device according to an embodiment of the present invention; Figure 2 This is a cross-sectional view showing the structure of a separation unit according to an embodiment of the present invention; Figure 3 This is a cross-sectional view showing a detachable connection mode of a magnet bar according to an embodiment of the present invention; Figure 4 A partial cross-sectional view showing the structure of a rotating unit according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a bulk material box according to an embodiment of the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram of part A; Figure 7 This is a structural schematic diagram showing the positions of the temporary storage chamber and the feeding chamber in an embodiment of the present invention; Figure 8 This is a cross-sectional view of one of the configuration modes of the guide plate according to an embodiment of the present invention; Fig. 9 This is a cross-sectional view of another arrangement of the guide plate according to an embodiment of the present invention.

[0018] Description of reference numerals: 10. Material receiving barrel; 101. First splicing block; 102. Second splicing block; 20, separation unit; 201, separation cylinder; 2011, first splicing arc; 2012, second splicing arc; 202, separation frame; 2021, through hole; 2022, embedding groove; 203, magnet rod; 2031, storage cavity; 2032, embedding block; 2033, elastic member; 30. Discharging unit; 301. Storage barrel; 3011. Valve; 40. Material receiving box; 50. reciprocating unit; 501. connecting frame; 502. conveyor; 60, bulk material box; 601, inlet; 602, outlet; 603, temporary storage chamber; 604, feeding chamber; 605, feeding roller; 6051, feeding blade; 606, first driving member; 607, push plate; 608, telescopic member; 609, guide groove; 610, through groove; 611, cover plate; 6111, opening and closing rack; 612, opening and closing gear; 613, second driving member; 70, rotating unit; 701, rotating frame; 7011, annular groove; 7012, third driving member; 702, driven gear ring; 703, driving gear; 80. material guide plate; 801. guide block. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] Please also read Figures 1 to 9, the alloy powder magnetic filtration device of the present invention is described. An alloy powder magnetic filtration device includes a receiving barrel 10, a separation unit 20 and a discharge unit 30; the separation unit 20 includes a separation barrel 201 arranged at the top of the receiving barrel 10, a separation frame 202 arranged in the separation barrel 201 and a magnetic attraction component penetrated by the separation frame 202, the inner diameter of the separation barrel 201 gradually decreases from top to bottom, the bottom end of the separation barrel 201 extends into the receiving barrel 10, the magnetic attraction component includes a plurality of groups of magnetic attraction mechanisms distributed in the up and down directions, the adjacent two groups of magnetic attraction mechanisms are staggered, and each group of magnetic attraction mechanisms includes a plurality of magnet rods 203 distributed in sequence, and the axial direction of the magnet rods 203 is perpendicular to the plate surface of the separation frame 202; the discharge unit 30 includes a storage barrel 301 arranged above the separation unit 20, and a valve 3011 is provided at the bottom of the storage barrel 301.

[0021] Compared with the prior art, the alloy powder magnetic filtration device provided in this embodiment is different from the prior art in that after the valve 3011 is opened, the alloy powder in the storage barrel 301 enters the separation barrel 201, and when the alloy powder passes through the magnet rod 203, the alloy powder falls from the gap between two magnet rods 203 into the next row of magnet rods 203, and the alloy powder falls just above the next row of magnet rods 203, so that the alloy powder is in full contact with the magnet rod 203, thereby causing ferromagnetic impurities to be adsorbed on the periphery of the magnet rod 203, reducing the content of ferromagnetic impurities in the alloy powder, thereby improving the performance of the alloy powder.

[0022] In some embodiments, see Figures 1 to 3 The material receiving barrel 10 includes a first splicing block 101 fixedly connected to the separation barrel 201 and a second splicing block 102 arranged relative to the first splicing block 101, and the first splicing block 101 and the second splicing block 102 are detachably connected; the first splicing block 101 and the second splicing block 102 form a material receiving area, and a material receiving box 40 is placed in the material receiving area.

[0023] The separation cylinder 201 includes a first splicing arc 2011 fixedly connected to the first splicing block 101 and a second splicing arc 2012 arranged relative to the first splicing arc 2011. The first splicing arc 2011 and the second splicing arc 2012 are detachably connected, and the top of the second splicing block 102 is abutted against or detachably connected to the outer wall of the second splicing arc 2012.

[0024] The outer wall of the magnet rod 203 is provided with a storage cavity 2031, and an embedding block 2032 is slidably connected in the storage cavity 2031. An elastic member 2033 is fixed between the inner wall of the storage cavity 2031 and the embedding block 2032. The elastic member 2033 has a pre-tightening force that allows the embedding block 2032 to be inserted into the embedding groove 2022. The end of the embedding block 2032 facing away from the elastic member 2033 is set to an elliptical shape. The separation frame 202 is provided with a through hole 2021 for the magnet rod 203 to pass through, and the inner wall of the through hole 2021 is provided with an embedding groove 2022 that is plugged in and adapted to the embedding block 2032.

[0025] It should be noted that the elastic member 2033 is a spring and the magnet bar 203 is a neodymium magnet.

[0026] After the alloy powder passes through the magnet rod 203, the magnet rod 203 absorbs ferromagnetic impurities in the alloy powder through magnetic force, and the purified alloy powder falls into the receiving box 40. The first splicing block 101 and the second splicing block 102 are set to be detachably connected to facilitate taking out the receiving box 40 from the receiving area.

[0027] Ferromagnetic impurities are adsorbed on the periphery of the ferromagnetic rod. Long-term adsorption will cause the ferromagnetic impurities to cover the periphery of the ferromagnetic rod, thereby reducing the adsorption effect of the ferromagnetic rod. At this time, the ferromagnetic impurities on the periphery of the magnet rod 203 need to be cleaned, and the first splicing arc 2011 and the second splicing arc 2012 are set to be detachable. This can expose the separation frame 202 and the magnet rod 203, which is convenient for the installation and disassembly of the magnet rod 203.

[0028] One end of the embedded block 2032 is set to an elliptical shape, so that during the installation and removal of the magnet bar 203, when the elliptical part of the embedded block 2032 is squeezed, the embedded block 2032 will be retracted into the storage cavity 2031; when the magnet bar 203 is installed, the staff holds the magnet bar 203 and inserts it into the through hole 2021, so that the separation frame 202 squeezes the embedded block 2032, and the embedded block 2032 is retracted into the storage cavity 2031 until the embedded block 2032 is completely received in the storage cavity 2031, and then The staff can rotate or move the magnet rod 203 back and forth in the through hole 2021 until the storage cavity 2031 and the embedding groove 2022 are aligned, and the elastic member 2033 releases the elastic force to insert the embedding block 2032 into the embedding groove 2022; when the magnet rod 203 is removed, the staff rotates the magnet rod 203 so that the separation frame 202 squeezes the embedding block 2032 until the embedding block 2032 is completely retracted into the storage cavity 2031, so that the staff can pull the magnet rod 203 out of the through hole 2021.

[0029] In some embodiments, see Figure 1 and Figure 4A bulk material system is provided between the separation unit 20 and the discharge unit 30, and the bulk material system includes a reciprocating unit 50, a plurality of bulk material boxes 60 and a rotating unit 70; the reciprocating unit 50 includes two connecting frames 501 and a conveyor 502 fixedly arranged between the two connecting frames 501, the connecting frame 501 is U-shaped, the connecting frame 501 is rotatably connected to the separation cylinder 201, the connecting frame 501 rotates around the central axis of the separation cylinder 201, and a gap is left between the end of the conveyor 502 and the connecting frame 501; a plurality of bulk material boxes 60 are provided on the conveyor 502, and are distributed in sequence along the transmission direction of the conveyor 502 at intervals, the bulk material box 60 is provided with an inlet 601 for receiving alloy powder and an outlet 602 for releasing alloy powder, and the bulk material box 60 can pass through the gap; the rotating unit 70 is connected to the connecting frame 501, and is used to drive the connecting frame 501 to rotate.

[0030] The rotating unit 70 includes a rotating frame 701, a driven gear ring 702 and a driving gear 703. The rotating frame 701 is in a circular ring shape. The bottom of one side of the rotating frame 701 is fixedly connected to the top of the first splicing arc 2011. The two connecting frames 501 are both arranged in the inner ring of the rotating frame 701. The two connecting frames 501 are rotatably connected to the inner wall of the rotating frame 701 on the opposite sides. The inner wall of the rotating frame 701 is annularly provided with an annular groove 7011. The driven gear ring 702 is arranged in the annular groove 7011. The two connecting frames 501 are fixedly connected to the inner wall of the rotating frame 701. At least one driving gear 703 is provided. A third driving member 7012 corresponding to the driving gear 703 is installed in the annular groove 7011. The third driving member 7012 is transmission-connected to the driving gear 703.

[0031] It should be noted that the third driving member 7012 is a motor, and the output shaft of the motor is fixedly connected to the driving gear 703 .

[0032] The third driving member 7012 is started to drive the active gear 703 to rotate, the active gear 703 drives the driven ring gear 702 to rotate, the driven ring gear 702 drives the two connecting frames 501 to rotate, and the two connecting frames 501 drive the conveyor 502 to rotate, thereby changing the movement direction of the bulk box 60 to avoid the accumulation of alloy powder, so that the alloy powder is fully in contact with the magnet rod 203.

[0033] In some embodiments, see Figure 5 and Figure 7 A temporary storage chamber 603 connected to the inlet 601 is provided in the bulk box 60, and a feeding chamber 604 connecting the temporary storage chamber 603 with the outlet 602 is provided in the bulk box 60. A feeding roller 605 is rotatably connected in the feeding chamber 604, and the rotation axis of the feeding roller 605 is parallel to the movement direction of the bulk box 60. A first driving member 606 transmission-connected to the feeding roller 605 is installed on the bulk box 60, and a feeding blade 6051 is fixedly provided on the outer periphery of the feeding roller 605 in a spiral.

[0034] It should be noted that the first driving member 606 is a motor, and the output shaft of the first driving member 606 is fixedly connected to the feeding roller 605 .

[0035] The alloy powder enters the temporary storage chamber 603 through the inlet 601. When the conveyor 502 drives the bulk box 60 to move to the bottom of the conveyor 502, the first driving member 606 starts to drive the feed roller 605 to rotate. The feed roller 605 drives the feed blade 6051 to rotate so that the alloy powder moves along the feed roller 605 to the outlet 602. The alloy powder then falls into the separation cylinder 201 through the outlet 602.

[0036] In some embodiments, see Figure 8 and Fig. 9 A material guide plate 80, a telescopic member 608 located below the material guide plate 80 and connected to the bulk material box 60, and a push plate 607 connected to the telescopic member 608 are provided in the temporary storage chamber 603. The push plate 607 is also slidably connected to the bulk material box 60 along a first path, and the first path is perpendicular to the movement path of the bulk material box 60. The telescopic member 608 is used to drive the push plate 607 to slide along the first path.

[0037] It should be noted that the telescopic member 608 can be a telescopic oil cylinder, an electric cylinder, or a hydraulic cylinder.

[0038] After the alloy powder falls into the temporary storage chamber 603, the push plate 607 is driven by the telescopic member 608 to push the alloy powder toward the feeding blade 6051, so that all the alloy powder in the temporary storage chamber 603 is sent out.

[0039] Specifically, the material guide plate 80 is tilted, and the fixed end of the material guide plate 80 is higher than the free end; when the entrance 601 is in an open state, the telescopic member 608 drives the push plate 607 to slide to the bottom of the material guide plate 80 .

[0040] Another embodiment of the guide plate 80 is that a guide block 801 is provided on the top of the guide plate 80, and a guide groove 609 adapted to the guide block 801 is opened on the inner wall of the bulk material box 60 along the up and down directions, and the guide block 801 is slidably adapted in the guide groove 609, and the hinge axis of the guide plate 80 and the guide block 608 is parallel to the movement direction of the bulk material box 60; the bottom side of the guide plate 80 and the top side of the push plate 607 are hinged, and the hinge axis of the guide plate 80 and the push plate 607 are parallel to the movement direction of the bulk material box 60.

[0041] By providing the guide plate 80 , the alloy powder will not fall into the side of the push plate 607 facing the telescopic member 608 , thereby reducing the probability of hindering the normal movement of the push plate 607 .

[0042] In some embodiments, see Figure 5 and Figure 6A through slot 610 is provided on the inner wall of the bulk box 60, and two through slots 610 are provided along the movement direction of the bulk box 60; a cover plate 611 is provided between the two opposite through slots 610, and an opening and closing rack 6111 is fixed on the surface of the cover plate 611 along its own length direction; an opening and closing gear 612 that meshes with the opening and closing rack 6111 is rotatably connected to the outer wall of the bulk box 60, and the rotation axis of the opening and closing gear 612 is perpendicular to the movement direction of the bulk box 60; a second driving member 613 is installed on the outer wall of the bulk box 60, and the second driving member 613 is transmission-connected to the opening and closing gear 612.

[0043] It should be noted that the second driving member 613 is a motor, and the motor is fixedly connected to the opening and closing gear 612 .

[0044] The first transmitter and the second transmitter are installed at the bottom of the storage barrel 301, and the top wall of the bulk material box 60 is installed with a receiver for receiving signals from the first transmitter and the second transmitter, and the receiver is in communication connection with the second driving member 613; When the receiver receives the first transmitter signal, the second driving member 613 is started, so that the cover plate 611 slides to open the inlet 601, the valve 3011 opens, and the valve 3011 opens later than the inlet 601; when the receiver receives the second transmitter signal, the second driving member 613 is started, so that the cover plate 611 slides to close the inlet 601, the valve 3011 closes, and the valve 3011 closes earlier than the inlet 601.

[0045] The second driving member 613 is started to drive the opening and closing gear 612 to rotate, and the opening and closing gear 612 rotates to drive the cover plate 611 to move through the opening and closing rack 6111, so that the entrance 601 is opened and closed.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic filtration device for alloy powder, characterized in that: include: Receiving barrel; A separation unit, comprising a separation cylinder arranged at the top of the material receiving cylinder, a separation frame fixed in the separation cylinder, and a magnetic attraction component passing through the separation frame, wherein the inner diameter of the separation cylinder gradually decreases from top to bottom, and the bottom end of the separation cylinder extends into the material receiving cylinder, and the magnetic attraction component comprises a plurality of groups of magnetic attraction mechanisms distributed in the up-down direction, two adjacent groups of the magnetic attraction mechanisms are staggered, and each group of the magnetic attraction mechanisms comprises a plurality of magnet bars distributed in sequence at intervals, and the axial direction of the magnet bars is perpendicular to the plate surface of the separation frame; and The material discharging unit comprises a material storage barrel arranged above the separation unit, and a valve is arranged at the bottom of the material storage barrel.

2. The alloy powder magnetic filtration device according to claim 1, characterized in that: A bulk material system is provided between the separation unit and the discharge unit, and the bulk material system comprises: A reciprocating unit, comprising two connecting frames and a conveyor disposed between the two connecting frames, wherein the connecting frame is U-shaped, the connecting frame is rotatably connected to the separation cylinder, the connecting frame rotates around the central axis of the separation cylinder, and a gap is left between the end of the conveyor and the connecting frame; A plurality of bulk material boxes are provided on the conveyor and are sequentially spaced apart along the transmission direction of the conveyor, the bulk material boxes are provided with an inlet for receiving alloy powder and an outlet for releasing alloy powder, and the bulk material boxes can pass through the gap; and The rotating unit is connected to the connecting frame and is used to drive the connecting frame to rotate.

3. The alloy powder magnetic filtration device according to claim 2, characterized in that: A temporary storage chamber connected to the inlet is provided in the bulk material box, a feeding chamber connecting the temporary storage chamber with the outlet is provided in the bulk material box, a feeding roller is rotatably connected in the feeding chamber, the rotation axis of the feeding roller is parallel to the movement direction of the bulk material box, a first driving member drivingly connected to the feeding roller is installed on the bulk material box, and a feeding blade is spirally fixed on the outer periphery of the feeding roller.

4. The alloy powder magnetic filtration device according to claim 3, characterized in that: The temporary storage chamber is provided with a material guide plate, a telescopic part located below the material guide plate and connected to the bulk material box, and a push plate connected to the telescopic part. The push plate is also slidably connected to the bulk material box along a first path, and the first path is perpendicular to the movement path of the bulk material box. The telescopic part is used to drive the push plate to slide along the first path.

5. The alloy powder magnetic filtration device according to claim 4, characterized in that: The guide plate is arranged obliquely, and the fixed end of the guide plate is higher than the free end; When the entrance is in an open state, the telescopic member drives the push plate to slide to the position directly below the material guide plate.

6. The alloy powder magnetic filtration device according to claim 4, characterized in that: A guide block is provided on the top of the guide plate, a guide groove adapted to the guide block is provided on the inner wall of the bulk material box in the up-down direction, the guide block is slidably arranged in the guide groove, and the hinge axis of the guide plate and the guide block is parallel to the movement direction of the bulk material box; The bottom side of the guide plate and the top side of the push plate are hinged, and the hinge axes of the guide plate and the push plate are parallel to the moving direction of the bulk material box.

7. The alloy powder magnetic filtration device according to claim 2, characterized in that: The inner wall of the bulk material box is provided with a through slot, and two through slots are provided along the movement direction of the bulk material box; A covering plate is arranged between the two opposite through grooves, and an opening and closing rack is fixedly arranged on the surface of the covering plate along its length direction. An opening and closing gear which meshes with the opening and closing rack is rotatably connected to the outer wall of the bulk material box, and the rotation axis of the opening and closing gear is perpendicular to the movement direction of the bulk material box. A second driving member is installed on the outer wall of the bulk material box, and the second driving member is drivingly connected to the opening and closing gear.

8. The alloy powder magnetic filtration device according to claim 7, characterized in that: A first transmitter and a second transmitter are installed at the bottom of the storage barrel, a receiver for receiving signals from the first transmitter and the second transmitter is installed on the top wall of the bulk material box, and the receiver, the second driving member and the valve are communicatively connected; When the receiver receives the first transmitter signal, the second driving member is activated, so that the cover plate slides to open the entrance, the valve opens and the valve opens later than the entrance; when the receiver receives the second transmitter signal, the second driving member is activated, so that the cover plate slides to close the entrance, the valve closes and the valve closes earlier than the entrance.

9. The alloy powder magnetic filtration device according to claim 1, characterized in that: The receiving barrel comprises a first splicing block fixedly connected to the separation barrel and a second splicing block arranged relative to the first splicing block, and the first splicing block and the second splicing block are detachably connected; The first assembling block and the second assembling block form a material receiving area, and a material receiving box is placed in the material receiving area.

10. The alloy powder magnetic filtration device according to claim 9, characterized in that: The separation cylinder includes a first splicing arc fixedly connected to the first splicing block and a second splicing arc arranged relative to the first splicing arc, the first splicing arc and the second splicing arc are detachably connected, and the top end of the second splicing block abuts against or is detachably connected to the outer wall of the second splicing arc.

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