A pretreatment device for neodymium iron boron waste before roasting

Abstract

The present invention discloses a pretreatment device for NdFeB waste before roasting, which mainly solves the problem that the existing NdFeB waste is not roasted sufficiently and affects the roasting efficiency. It includes: a flushing device, a crushing device, a straightening device and a roasting device. The flushing device has a left baffle, a right baffle, a front plate, a rear plate and a bottom plate. The right baffle is arranged on the right side of the left baffle; the front plate is arranged in front of the left baffle and the right baffle; the rear plate is arranged behind the left baffle and the right baffle; the bottom plate is arranged at the bottom of the left baffle, the right baffle, the front plate and the rear plate; the crushing device is arranged in front of the flushing device, the crushing device has a crushing box and a crushing reamer, and the crushing reamer is arranged in the crushing box for crushing NdFeB; the straightening device is arranged between the crushing device and the flushing device, the straightening device has a material baffle plate, and the material baffle plate is arranged between the crushing box and the front plate; the roasting device is arranged in front of the crushing device. The present invention has the advantages of sufficient roasting and high roasting efficiency.

Description

Technical Field

[0001] The invention relates to the field of NdFeB roasting technology, and in particular to a pretreatment device for NdFeB waste before roasting. Background Art

[0002] Rare earth elements are widely used in the manufacture of functional materials and are key elements in the development of high-tech industries. Some people believe that with the continuous development and utilization of rare earth elements, a new technological revolution will be triggered worldwide. In the early days, due to the low level of rare earth element separation, purification, production and application, rare earth elements were only used as industrial "MSG". With the advancement of science and technology, rare earth elements have now been used in large quantities to manufacture high-tech materials, such as "NdFeB rare earth permanent magnet materials", "magnetostrictive materials", "hydrogen storage alloy powder", etc. As the number of rare earth elements used increases, the recycling and reuse of non-renewable precious rare earth resources has become an important task for rare earth production companies.

[0003] In the process of recycling NdFeB waste, a roasting process is required. The purpose of roasting is to oxidize the iron and rare earth elements in the NdFeB waste into Fe 2 O 3 and rare earth oxides, reducing the leaching of iron in the subsequent optimal solution process.

[0004] The existing NdFeB waste is in blocks of different sizes, so the roasting contact area is large and time-consuming. In addition, most of the waste is mixed with mud and wastewater, which will affect the roasting efficiency and cause incomplete roasting. Therefore, it needs to be processed in advance. Summary of the invention

[0005] The present invention aims to provide a pretreatment device for NdFeB waste before roasting, so as to solve the problem that the existing NdFeB waste is not roasted sufficiently and the roasting efficiency is affected.

[0006] To achieve the above objectives, the embodiment of the present invention adopts the following scheme:

[0007] A pretreatment device for NdFeB waste before roasting, characterized by comprising:

[0008] A flushing device having

[0009] Left fender;

[0010] A right baffle, the right baffle being arranged on the right side of the left baffle;

[0011] A front plate, the front plate being arranged in front of the left baffle and the right baffle;

[0012] A rear plate, the rear plate being arranged behind the left baffle and the right baffle;

[0013] A bottom plate, the bottom plate being arranged at the bottom of the left baffle, the right baffle, the front plate and the rear plate;

[0014] A crushing device is arranged in front of the flushing device, and the crushing device has

[0015] Crushing box;

[0016] A crushing reamer, wherein the crushing reamer is arranged in the crushing box, and the crushing reamer is arranged in a pair and is used for crushing NdFeB;

[0017] A straightening device, the straightening device is arranged between the crushing device and the flushing device, the straightening device has a material baffle plate, the material baffle plate is arranged between the crushing box and the front plate, the material baffle plates are arranged in a pair and are located on both sides of the front plate;

[0018] A roasting device is arranged in front of the crushing device.

[0019] The straightening device also includes

[0020] A box body, the box body is arranged between the crushing box and the front plate, the box body is provided with guide wheels, and a plurality of guide wheels are arranged in a vertical row;

[0021] A long toothed bar, the long toothed bar is arranged in the box body, the front part of the long toothed bar is attached to the guide wheel, and the rear part of the long toothed bar is tooth-shaped; a roller is provided on the top of the long toothed bar, and the roller is attached to the front plate;

[0022] The second gear is arranged in the box body, the second gear is arranged in close contact with the long toothed bar, a starting motor is arranged on the outside of the box body, and the driving motor is connected to the second gear.

[0023] The second gear is driven by the driving motor to rotate, which can drive the long tooth bar to rise, so that the roller on the top of the long tooth bar rests on the front plate, and then the second gear rotates in the opposite direction, the long tooth bar descends, and the front plate can be slowly opened and turned down and placed on the crushing box, so that the waste can pass through the front plate and roll into the crushing box, without manual picking up, thus reducing labor intensity.

[0024] A conveyor belt is provided in front of the crushing device, and a scattering device is provided on one side of the crushing device. The scattering device has

[0025] A support frame, the support frame is arranged at the conveying front end of the conveyor belt, and a guide rail is arranged below the support frame;

[0026] A movable seat, the movable seat is arranged above the supporting frame, and the movable seat can move above the supporting frame;

[0027] A breaking up gripper passes through the moving seat and is rotatably connected to the moving seat, and the breaking up gripper is located below the moving seat.

[0028] A movable frame, wherein the movable frame is arranged on the guide rail;

[0029] A feed tray is placed on the mobile rack, and the feed tray can hold waste materials transported by a conveyor belt.

[0030] A screw motor is provided at the front of the support frame, and the screw motor is connected to the moving seat to drive the moving seat to move. A second telescopic cylinder is provided on the moving seat, and the second telescopic cylinder is connected to the upper end of the scattering gripper to drive the scattering gripper to rotate, so that the bottom gripper of the scattering gripper can scatter the waste in the feed tray. The connection part of the bottom gripper of the scattering gripper is elastically set, which can contact the resistance of the rebound part after the feed tray. The gripper scatters the waste so that the waste can be fully roasted during roasting; a third motor is fixedly provided in the moving frame, and the third motor drives the wheels at the bottom of the moving frame so that the moving frame can be moved to the roasting device.

[0031] Preferably, a rear seat is provided behind the rear plate, an oil cylinder is provided on the rear seat, a magnetic plate is provided at the telescopic end of the oil cylinder, a magnet is provided at the rear of the rear plate, and the magnetic plate and the magnet can be attracted to each other.

[0032] Preferably, slide grooves are provided on the inner sides of the left baffle and the right baffle, and the two sides of the rear plate fit in the slide grooves and can slide in the slide grooves.

[0033] Preferably, sealing magnetic strips are provided on both sides of the rear portion of the rear plate, and extensions are provided at the rear portions of the left baffle and the right baffle, and the sealing magnetic strips are fitted in the extensions.

[0034] Preferably, a dust hood is provided on the top of the crushing box, and the dust hood is suspended to absorb dust from the crushed waste.

[0035] Preferably, the flushing device also has

[0036] A shaking frame, the shaking frame is arranged below the bottom plate, the shaking frame is fixed to the left baffle plate and the right baffle plate, and sliding wheels are arranged on both sides of the bottom of the shaking frame;

[0037] A base is arranged below the shaking frame, and the sliding wheel is attached to the base.

[0038] Preferably, a row of equidistant lower support plates is provided at the bottom of the rocking frame, a row of equidistant upper support plates is provided above the base, the upper support plates and the lower support plates are staggered with each other, a spring is provided between the upper support plates and the lower support plates, and a second telescopic cylinder is provided between the rocking frame and the base, and the second telescopic cylinder can drive the rocking frame to rock.

[0039] Preferably, arc-shaped guide rails are provided at the front and rear outer sides of the left baffle and the right baffle, and arc-shaped gear rods are provided at the front and rear bottom of the bottom of the bottom plate, and the arc-shaped gear rods are attached to the inner sides of the arc-shaped guide rails.

[0040] Preferably, a bearing rod is provided in the middle of the outer sides of the left baffle and the right baffle, and the first gear passes through the middle of the bearing rod. The first gear is located on the inner side of the arc-shaped guide rail, and the inner side of the arc-shaped gear rod is tooth-shaped and is arranged in close contact with the first gear. A first motor is provided on the shaking frame, and the first motor is connected to the first gear.

[0041] Preferably, a water outlet trough is provided below the bottom plate, the water outlet trough is fixed on the shaking frame, and the water outlet trough is inclined.

[0042] Preferably, an inclined plate is provided in the crushing box, the inclined plate is located below the crushing reamer, and a vibrator is provided at the bottom of the inclined plate, and the vibrator is used to vibrate the waste on the inclined plate to fall off.

[0043] Preferably, heating plates are provided on both sides of the interior of the crushing box, and the heating plates are electrically heated.

[0044] Preferably, the bottom plates are arranged in a pair, respectively hinged to the left baffle and the right baffle, the bottom plates can be opened and closed, a sealing strip is provided in the middle, a filter net is provided above the bottom plates, and the filter net is fixed between the left baffle and the right baffle.

[0045] Preferably, the bottom of the left baffle and the right baffle form a rectangular extension, the extension fixes the filter net, the bottom of the extension is provided with a sealing strip, the sealing strip fits the bottom plate, the front of the left baffle and the right baffle is also provided with a sealing strip, the sealing strip fits the front plate.

[0046] A method for using a pretreatment device for NdFeB waste before roasting, comprising:

[0047] Wash the waste, the waste falls into the flushing device from the feed trough, and then pour the cleaning liquid water from the pouring pipe into the flushing device, start the first telescopic cylinder, the first telescopic cylinder retracts back and forth, and the shaking frame shakes left and right on the base, driving the waste and the cleaning liquid to be fully mixed for 10-15 minutes;

[0048] To export the waste, start the first motor, which rotates the first gear. The first gear drives the arc-shaped gear rod and flips the bottom plate to the two sides, so that the cleaned waste water flows out through the filter screen and flows down from the bottom plates on both sides to the middle and flows out of the water outlet. Then start the second motor, which flips the buckle plate down. The drive motor drives the second gear to rotate, and the long gear rod moves downward. The front plate slowly flips down while fitting the roller, so that the front plate rests on the crushing box. Start the servo motor to drive the baffle plate to rotate, so that the baffle plate blocks both sides of the front plate. Finally, start the oil cylinder, which pushes the rear plate forward to push the waste out. The waste slides from the front plate into the crushing box.

[0049] Crushing waste materials. The waste materials are squeezed and crushed under the rotation of the crushing reamer, so that the waste materials fall into small solid particles on the inclined plate. Under the vibration of the vibrator, the waste materials fall from the inclined plate to the conveyor belt;

[0050] To roast the waste, the conveyor belt conveys the waste and drops it onto the feed tray. The screw motor and the second telescopic cylinder are started. The screw motor drives the moving seat to move forward and backward. The second telescopic cylinder drives the breaking up gripper to rotate, so that the gripper breaks up the waste. Then the third motor is started to drive the moving frame to move to the roasting device for roasting treatment.

[0051] Beneficial effects of the present invention:

[0052] The waste is shaken and cleaned by a flushing device so that the waste can fully withstand the roasting temperature. After the waste is cleaned, it is crushed by a crushing device so that the waste becomes small solid particles that can be fully roasted and the roasting process can be completed more quickly. The present invention achieves the beneficial effects of full roasting and high roasting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a front view of the present invention.

[0054] Figure 2 It is a schematic diagram of the flushing device in the present invention.

[0055] Figure 3 It is a front view of the flushing device of the present invention.

[0056] Figure 4 It is a bottom schematic diagram of the flushing device in the present invention.

[0057] Figure 5 It is a schematic diagram of the bottom opening and closing of the flushing device in the present invention.

[0058] Figure 6 It is a schematic diagram of the crushing device in the present invention.

[0059] Figure 7 It is a cross-sectional view of the crushing device in the present invention.

[0060] Figure 8 It is a front view of the crushing device in the present invention.

[0061] Fig. 9 It is a schematic diagram of the breaking up device in the present invention.

[0062] Fig.10 It is a cross-sectional view of the breaking up device in the present invention.

[0063] 1. Flushing device 2. Straightening device 3. Crushing device

[0064] 4. Breaking device 5. Roasting device 101. Feeding trough

[0065] 102, water pouring pipe 103, left baffle 104, right baffle

[0066] 105, front plate 106, rear plate 107, swing frame

[0067] 108, base 109, rear seat 110, oil cylinder

[0068] 111, water outlet 112, bottom plate 113, bearing rod

[0069] 114, arc guide rail 115, first gear 116, first motor

[0070] 117, first telescopic cylinder 118, filter screen 201, baffle plate

[0071] 202, box 203, guide wheel 204, long toothed rod

[0072] 205, second gear 301, crushing box 302, conveyor belt

[0073] 303, crushing reamer 304, inclined plate 305, vibrator

[0074] 306, dust cover 401, support frame 402, mobile seat

[0075] 403, breaking gripper 404, second telescopic cylinder 405, lead screw motor

[0076] 406, feed tray 407, mobile rack 408, third motor

[0077] 409, guide rail 1101, magnetic plate 1061, magnet

[0078] 1071, sliding wheel 1072, upper support plate 1073, buckle plate

[0079] 1074, second motor 1081, lower support plate 1082, spring

[0080] 1121, arc-shaped gear rod 2041, roller 1062, slide groove DETAILED DESCRIPTION

[0081] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0082] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0083] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0084] For the purpose of simplicity and illustration, the principles of the embodiments are described mainly by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious. For those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments may be used in combination with each other.

[0085] like Figure 1-2As shown, a pretreatment device for NdFeB waste before roasting, characterized in that it includes: a flushing device 1, a crushing device 3, a straightening device 2 and a roasting device 5, the flushing device 1 has a left baffle 103, a right baffle 104, a front plate 105, a rear plate 106 and a bottom plate 112, the right baffle 104 is arranged on the right side of the left baffle 103; the front plate 105 is arranged in front of the left baffle 103 and the right baffle 104; the rear plate 106 is arranged behind the left baffle 103 and the right baffle 104; the bottom plate 112 is arranged on the left baffle 103, the right baffle 104, the front plate 105, the rear plate 106 and the bottom plate 112 5 and the bottom of the rear plate 106; the crushing device 3 is arranged in front of the flushing device 1, and the crushing device 3 has a crushing box 301 and a crushing reamer 303, the crushing reamer 303 is arranged in the crushing box 301, and the crushing reamer 303 is arranged in a pair for crushing neodymium iron boron; the straightening device 2 is arranged between the crushing device 3 and the flushing device 1, and the straightening device 2 has a baffle plate 201, the baffle plate 201 is arranged between the crushing box 301 and the front plate 105, and the baffle plate 201 is arranged in a pair and is located on both sides of the front plate 105; the roasting device 5 is arranged in front of the crushing device 3.

[0086] like Figure 6-7 As shown, the straightening device 2 also includes a box body 202, a long toothed rod 204 and a second gear 205. The box body 202 is arranged between the crushing box 301 and the front plate 105. A guide wheel 203 is arranged in the box body 202, and a plurality of guide wheels are arranged in a vertical row. The long toothed rod 204 is arranged in the box body 202, and the front part of the long toothed rod 204 is attached to the guide wheel 203, and the rear part of the long toothed rod 204 is tooth-shaped. A roller 2041 is arranged on the top of the long toothed rod 204, and the roller 2041 is attached to the front plate 105. The second gear 205 is arranged in the box body 202. In the embodiment, the second gear 205 is fitted with the long toothed bar 204, a starting motor is provided on the outer side of the box body 202, and the driving motor is connected to the second gear 205; the second gear 205 is driven by the driving motor to rotate, which can drive the long toothed bar 204 to rise, so that the roller 2041 on the top of the long toothed bar 204 abuts against the front plate 105, and then the second gear 205 rotates in the opposite direction, the long toothed bar 204 descends, and the front plate 105 can be slowly opened and turned down, and placed on the crushing box 301, so that the waste can roll over the front plate 105 into the crushing box 301, without manual removal, thereby reducing labor intensity.

[0087] like Figure 9-10As shown, a conveyor belt 302 is provided in front of the crushing device 3, and a scattering device 4 is provided on one side of the crushing device 3. The scattering device 4 has a support frame 401, a moving seat 402, a scattering gripper 403, a moving frame 407 and a feeding tray 406. The support frame 401 is arranged at the front end of the conveying conveyor belt 302, and a guide rail 409 is provided below the support frame 401; the moving seat 402 is arranged above the support frame 401, and the moving seat 402 can move above the support frame 401; the scattering gripper 403 passes through the moving seat 402 and is connected to the moving seat 402. The seat 402 is rotatably connected, and the scattering gripper 403 is located below the movable seat 402; the movable frame 407 is arranged on the guide rail 409; the feed tray 406 of the movable frame 407 is placed on the movable frame 407, and the feed tray 406 can hold the waste conveyed by the conveyor belt 302; the front of the support frame 401 is provided with a screw motor 405, the screw motor 405 is connected to the movable seat 402, and can drive the movable seat 402 to move, and the movable seat 402 is provided with a second telescopic cylinder 404, and the second telescopic cylinder 404 is connected to the scattering gripper 403 The upper end of the scattering gripper 403 can be driven to rotate, so that the bottom gripper of the scattering gripper 403 can scatter the waste in the feed tray 406. The connection part of the bottom gripper of the scattering gripper 403 is elastically set, which can rebound part of the resistance after contacting the feed tray 406. The gripper scatters the waste so that the waste can be fully roasted during roasting. A third motor 408 is fixedly provided in the mobile frame 407, and the third motor 408 drives the wheels at the bottom of the mobile frame 407, so that the mobile frame 407 can be moved to the roasting device 5.

[0088] Specifically, Figure 2 As shown, a rear seat 109 is provided at the rear of the rear plate 106, and an oil cylinder 110 is provided on the rear seat 109. A magnetic plate 1101 is installed at the telescopic end of the oil cylinder 110, and a magnet 1061 is installed at the rear of the rear plate 106. The magnetic plate 1101 and the magnet 1061 can be attracted to each other.

[0089] Specifically, the inner sides of the left baffle plate 103 and the right baffle plate 104 are provided with sliding grooves 1062 , and the two sides of the rear plate 106 fit in the sliding grooves 1062 and can slide in the sliding grooves 1062 .

[0090] Specifically, sealing magnetic strips are provided on both sides of the rear portion of the rear plate 106 , and extensions are provided on the rear portions of the left baffle plate 103 and the right baffle plate 104 , in which the sealing magnetic strips are fitted.

[0091] Specifically, Figure 8 As shown, a dust hood 306 is provided on the top of the crushing box 301, and the dust hood 306 is suspended to absorb dust from the crushed waste.

[0092] Specifically, Figure 3As shown, the flushing device 1 also has a shaking frame 107 and a base 108. The shaking frame 107 is arranged below the bottom plate 112. The shaking frame 107 is fixed to the left baffle 103 and the right baffle 104. Sliding wheels 1071 are provided on both sides of the bottom of the shaking frame 107. The base 108 is arranged below the shaking frame 107, and the sliding wheel 1071 is attached to the base 108.

[0093] Specifically, Figure 4 As shown, a row of equidistant lower support plates 1071 is provided at the bottom of the rocking frame 107, and a row of equidistant upper support plates 1072 is provided above the base 108. The upper support plates 1072 and the lower support plates 1071 are staggered with each other, and a spring 1082 is provided between the upper support plates 1072 and the lower support plates 1071. A second telescopic cylinder 404 is provided between the rocking frame 107 and the base 108, and the second telescopic cylinder 404 can drive the rocking frame 107 to rock.

[0094] Specifically, arc-shaped guide rails 409114 are provided at the front and rear outer sides of the left baffle 103 and the right baffle 104 , and arc-shaped gear rods 1121 are provided at the front and rear bottom of the bottom plate 112 , and the arc-shaped gear rods 1121 are fitted to the inner sides of the arc-shaped guide rails 409114 .

[0095] Specifically, a bearing rod 113 is provided in the middle of the outer sides of the left baffle 103 and the right baffle 104, and the first gear 115 passes through the middle of the bearing rod 113. The first gear 115 is located on the inner side of the arc guide rail 409114. The inner side of the arc gear rod 1121 is tooth-shaped and is arranged in close contact with the first gear 115. A first motor 116 is provided on the shaking frame 107, and the first motor 116 is connected to the first gear 115.

[0096] Specifically, a water outlet trough 111 is provided below the bottom plate 112 , and the water outlet trough 111 is fixed on the shaking frame 107 , and the water outlet trough 111 is inclined.

[0097] Specifically, Figure 7 As shown, a sloping plate 304 is provided in the crushing box 301 , and the sloping plate 304 is located below the crushing reamer 303 . A vibrator 305 is provided at the bottom of the sloping plate 304 , and the vibrator 305 is used to vibrate the waste on the sloping plate 304 to drop.

[0098] Specifically, heating plates are provided on both sides of the interior of the crushing box 301, and the heating plates are electrically heated.

[0099] Specifically, Figure 5 As shown, the bottom plate 112 is arranged in a pair, which is hinged to the left baffle 103 and the right baffle 104 respectively. The bottom plate 112 can be opened and closed, and a sealing strip is provided in the middle. A filter screen 118 is provided above the bottom plate 112, and the filter screen 118 is fixed between the left baffle 103 and the right baffle 104.

[0100] Specifically, the bottom of the left baffle 103 and the right baffle 104 form a rectangular extension, which fixes the filter 118. A sealing strip is provided at the bottom of the extension, which fits the bottom plate 112. A sealing strip is also provided at the front of the left baffle 103 and the right baffle 104, which fits the front plate 105.

[0101] A method for using a pretreatment device for NdFeB waste before roasting, comprising:

[0102] To clean the waste, the waste falls from the feed trough 101 into the flushing device 1, and then the cleaning liquid is poured from the pouring pipe 102 into the flushing device 1, and the first telescopic cylinder 117 is started, and the first telescopic cylinder 117 is retracted back and forth, so that the shaking frame 107 shakes left and right on the base 108, driving the waste and the cleaning liquid to be fully mixed for 10-15 minutes;

[0103] To export the waste, start the first motor 116, which rotates the first gear 115. The first gear 115 drives the arc gear rod 1121 and flips the bottom plate 112 to the lower sides, so that the cleaned waste water flows out through the filter screen 118, flows down from the bottom plates 112 on both sides to the middle and flows out from the water outlet trough 111, and then starts the second motor 1074, which flips the buckle plate 1073 down. The drive motor drives the second gear 205 to rotate, and the long gear rod 204 moves downward. The front plate 105 slowly flips down while fitting the roller 2041, so that the front plate 105 is placed on the crushing box 301, and the servo motor is started to drive the baffle plate 201 to rotate, so that the baffle plate 201 is blocked on both sides of the front plate 105. Finally, start the cylinder 110, and the cylinder 110 pushes the rear plate 106 forward to push the waste out. Make the waste slide from the front plate 105 into the crushing box 301;

[0104] Crushing the waste, the waste is squeezed and crushed under the rotation of the crushing reamer 303, so that the waste is turned into small solid particles and falls onto the inclined plate 304. Under the vibration of the vibrator 305, the waste falls from the inclined plate 304 to the conveyor belt 302;

[0105] To roast the waste, the conveyor belt 302 conveys the waste to the feed tray 406, the screw motor 405 and the second telescopic cylinder 404 are started, the screw motor 405 drives the movable seat 402 to move forward and backward, the second telescopic cylinder 404 drives the scattering gripper 403 to rotate, so that the gripper scatters the waste, and then the third motor 408 is started to drive the movable frame 407 to move to the roasting device 5 for roasting treatment.

[0106] Although the above describes the illustrative specific embodiments of the present invention so that those skilled in the art can understand the present invention, the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, all inventions and creations using the concepts of the present invention are protected.

Claims

1. A pretreatment device for NdFeB waste before roasting, characterized in that: include: A flushing device having Left fender; A right baffle, the right baffle being arranged on the right side of the left baffle; A front plate, the front plate being arranged in front of the left baffle and the right baffle; A rear plate, the rear plate being arranged behind the left baffle and the right baffle; A bottom plate, the bottom plate being arranged at the bottom of the left baffle, the right baffle, the front plate and the rear plate; A crushing device, the crushing device is arranged in front of the flushing device, and the crushing device has a crushing box; A crushing reamer, wherein the crushing reamer is arranged in the crushing box, and the crushing reamer is arranged in a pair and is used for crushing NdFeB; A straightening device, the straightening device is arranged between the crushing device and the flushing device, the straightening device has a material baffle plate, the material baffle plate is arranged between the crushing box and the front plate, the material baffle plates are arranged in a pair and are located on both sides of the front plate; A roasting device, the roasting device is arranged in front of the crushing device; The straightening device comprises a box body, a long toothed rod, and a second gear; The box body is arranged between the crushing box and the front plate, a guide wheel is arranged in the box body, and a plurality of guide wheels are arranged in a vertical row, the long tooth bar is arranged in the box body, the front part of the long tooth bar is attached to the guide wheel, and the rear part of the long tooth bar is tooth-shaped; a roller is arranged on the top of the long tooth bar, and the roller is attached to the front plate, the second gear is arranged in the box body, and the second gear is attached to the long tooth bar, and a starting motor is arranged on the outside of the box body, and the driving motor is connected to the second gear; A conveyor belt is provided in front of the crushing device, and a scattering device is provided on one side of the crushing device. The scattering device comprises a support frame, a movable seat, a scattering gripper, a movable frame, and a feed tray; The support frame is arranged at the conveying front end of the conveyor belt, a guide rail is arranged below the support frame, the moving seat is arranged above the support frame, the moving seat can move above the support frame, the scattering gripper passes through the moving seat and is rotatably connected with the moving seat, the scattering gripper is located below the moving seat, the moving frame is arranged on the guide rail, the moving frame is placed on the moving frame, and the feed tray can hold the waste conveyed by the conveyor belt; A lead screw motor is arranged at the front side of the support frame, and the lead screw motor is connected to the moving seat.

2. A pretreatment device for NdFeB waste before roasting according to claim 1, wherein: A rear seat is provided behind the rear plate, an oil cylinder is provided on the rear seat, a magnetic plate is provided at the telescopic end of the oil cylinder, a magnet is provided at the rear of the rear plate, and the magnetic plate and the magnet can be attracted to each other; The oil cylinder can push the magnetic plate to adsorb to the magnet to advance the rear plate, and can also retract the magnetic plate to pull the rear plate backwards and separate the magnetic plate from the magnet.

3. A pretreatment device for NdFeB waste before roasting according to claim 2, wherein: Slide grooves are arranged on the inner sides of the left baffle plate and the right baffle plate, and the two sides of the rear plate fit in the slide grooves and can slide in the slide grooves.

4. The pretreatment device for NdFeB waste before calcination according to claim 1, wherein: Sealing magnetic strips are arranged on both sides of the rear part of the rear plate, and extensions are arranged on the rear parts of the left baffle plate and the right baffle plate, and the sealing magnetic strips are attached to the extensions.

5. The pretreatment device for NdFeB waste before calcination according to claim 1, wherein: A dust hood is provided on the top of the crushing box, and the dust hood is suspended to absorb dust from the crushed waste.

6. A pretreatment device for NdFeB waste before roasting according to claim 1, wherein: The flushing device also has a shaking frame and a base, wherein the shaking frame is arranged below the bottom plate, the shaking frame is fixed to the left baffle plate and the right baffle plate, and sliding wheels are arranged on both sides of the bottom of the shaking frame; The base is arranged below the shaking frame, and the sliding wheel is attached to the base.

7. A pretreatment device for NdFeB waste before roasting according to claim 6, wherein: A row of equidistant lower support plates is provided at the bottom of the rocking frame, and a row of equidistant upper support plates is provided above the base. The upper support plates and the lower support plates are staggered with each other, and a spring is provided between the upper support plates and the lower support plates. A first telescopic cylinder is provided between the rocking frame and the base, and the first telescopic cylinder can drive the rocking frame to rock.

8. A pretreatment device for NdFeB waste before calcination according to claim 6, wherein: Arc-shaped guide rails are arranged at the front and rear of the outer sides of the left baffle and the right baffle, and arc-shaped gear rods are arranged at the front and rear of the bottom of the bottom plate, and the arc-shaped gear rods are attached to the inner sides of the arc-shaped guide rails.

9. A pretreatment device for NdFeB waste before calcination according to claim 8, wherein: A bearing rod is provided in the middle of the outer sides of the left baffle and the right baffle, and the first gear passes through the middle of the bearing rod. The first gear is located on the inner side of the arc-shaped guide rail, and the inner side of the arc-shaped gear rod is tooth-shaped and is arranged in close contact with the first gear. A first motor is provided on the shaking frame, and the first motor is connected to the first gear.

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