WO2021254022A1 - Appareil de prétraitement pour déchets de néodyme-bore-fer avant calcination - Google Patents

Appareil de prétraitement pour déchets de néodyme-bore-fer avant calcination Download PDF

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Publication number
WO2021254022A1
WO2021254022A1 PCT/CN2021/092331 CN2021092331W WO2021254022A1 WO 2021254022 A1 WO2021254022 A1 WO 2021254022A1 CN 2021092331 W CN2021092331 W CN 2021092331W WO 2021254022 A1 WO2021254022 A1 WO 2021254022A1
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WIPO (PCT)
Prior art keywords
plate
waste
crushing
baffle
motor
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PCT/CN2021/092331
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English (en)
Chinese (zh)
Inventor
刘勇
张相良
张华�
谢志忠
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信丰县包钢新利稀土有限责任公司
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Publication of WO2021254022A1 publication Critical patent/WO2021254022A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the invention relates to the field of the roasting process of neodymium iron boron, in particular to a pretreatment device before the roasting of neodymium iron boron waste.
  • Rare earth elements are widely used in the manufacture of functional materials and are key elements for the development of high-tech industries. Some people believe that the continuous development and utilization of rare earth elements will trigger a new technological revolution on a global scale. In the early days, due to the low level of rare earth element separation and 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 make high-tech materials, such as "NdFeB rare earth permanent magnets". "Materials”, “magnetostrictive materials”, “hydrogen storage alloy powders” and so on. Due to the increasing number of rare earth elements being used, the recycling and reuse of precious non-renewable rare earth resources has become an important task for rare earth manufacturers.
  • roasting process 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 to Fe 2 O 3 and rare earth oxides to reduce subsequent advantages.
  • the leaching of iron in the melting process is required.
  • the purpose of the present invention is to provide a pretreatment device for the NdFeB waste material before roasting, so as to solve the problem of insufficient roasting of the existing NdFeB waste material and affecting the roasting efficiency.
  • a pretreatment device for NdFeB waste material before roasting which is characterized in that it comprises:
  • the right baffle, the right baffle is arranged on the right side of the left baffle;
  • a front panel the front panel being arranged in front of the left baffle and the right baffle;
  • a rear panel, the rear panel is arranged behind the left baffle and the right baffle;
  • a bottom plate the bottom plate is 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 set in front of the washing device, the crushing The device has a crushing box;
  • a crushing reamer the crushing reamer is set in the crushing box, and the crushing reamer is a pair set for crushing neodymium iron boron;
  • the centralizing device is arranged between the crushing device and the washing device, the centralizing device has a baffle plate, and the baffle plate is provided between the crushing box and the front plate, so The baffle plates are arranged in a pair and are located on both sides of the front plate;
  • the roasting device is arranged in front of the crushing device.
  • the righting device also includes
  • a box body the box body is arranged between the crushing box and the front plate, the box body is provided with a guide wheel, and the box body is arranged with a plurality of vertical rows;
  • a long rack the long rack is arranged in the box, the front of the long rack is attached to the guide wheel, and the rear of the long rack is toothed;
  • a roller is provided on the top of the long rack, and the roller is attached to the front plate;
  • a second gear is arranged in the box body, the second gear is arranged in close contact with the long rack rack, a starter motor is arranged on the outside of the box body, and the driving motor is connected to the second gear.
  • the long rack By driving the second gear to rotate by the drive motor, the long rack can be driven to rise, so that the roller on the top of the long rack is against the front plate, and then the second gear rotates in the opposite direction.
  • the long rack goes down, and the front plate can slowly It is opened and turned down, and placed on the crushing box, so that the waste can roll through the front plate and fall into the crushing box without manual picking, which reduces labor intensity.
  • the front of the crushing device is provided with a conveyor belt, and one side of the crushing device is provided with a dispersing device, and the dispersing device has
  • a support frame the support frame is arranged at the forward end of the conveyor belt, and a guide rail is provided under the support frame;
  • a movable seat is arranged above the support frame, and the movable seat can move above the support frame;
  • the dispersing gripper passes through the movable seat and is arranged in a rotating connection with the movable seat, and the dispersive gripper is located below the movable seat.
  • a movable frame, the movable frame is arranged on the guide rail;
  • the feeding tray is placed on the moving rack, and the feeding tray can contain waste materials conveyed by the conveyor belt.
  • a lead screw motor is provided on the front side of the support frame.
  • the lead screw motor is connected to the movable seat and can drive the movable seat to move.
  • the movable seat is provided with a second telescopic cylinder, and the second telescopic cylinder is connected to disperse
  • the upper end of the gripper can drive the dispersing gripper to rotate, so that the bottom gripper of the dispersing gripper can disperse the waste material in the feeding tray, and the connection of the bottom gripper of the dispersing gripper is elastically set , The resistance of the rebound part after contacting the feed tray, the gripper can disperse the waste material so that the waste material can be fully roasted during roasting;
  • a third motor is fixed in the movable frame, and the third motor drives the bottom of the movable frame Wheels, so that the movable frame can be moved to the roasting device.
  • a rear seat is provided at the rear of the rear plate, an oil cylinder is provided on the rear seat, a magnetic plate is installed at the telescopic end of the oil cylinder, and a magnet is installed at the rear of the rear plate.
  • the magnets can adsorb each other.
  • a sliding groove is provided on the inner side of the left baffle and the right baffle, and both sides of the rear plate are attached to the sliding groove and can slide in the sliding groove.
  • two sides of the rear part of the rear plate are provided with sealed magnetic strips
  • the rear of the left baffle and the right baffle are provided with extensions
  • the sealed magnetic strips are attached to the extensions.
  • a dust suction hood is provided on the top of the crushing box, and the dust suction hood is suspended and used to suck dust from the crushed waste.
  • the flushing device also has
  • a swinging frame the swinging frame is arranged below the bottom plate, the swinging frame is fixed to the left baffle and the right baffle, and sliding wheels are provided on both sides of the bottom of the swinging frame;
  • a base the base is arranged below the shaking frame, and the sliding wheel is attached to the base.
  • a row of equally spaced lower abutment plates is provided at the bottom of the swaying frame, and a row of equally-spaced upper abutment plates is provided above the base, and the upper abutment plates and the lower abutment plates are arranged alternately, so A spring is arranged between the upper abutment plate and the lower abutment plate, and a second telescopic cylinder is arranged between the swaying frame and the base, and the second telescopic cylinder can drive the swaying frame to sway.
  • the outer side of the left baffle and the right baffle are provided with arc-shaped guide rails front and rear, and the bottom of the bottom plate is provided with arc-shaped gear rods at the front and rear, and the arc-shaped gear rods are attached to the arc-shaped guide rails.
  • a bearing rod is provided between the outer sides of the left baffle and the right baffle, the bearing rod passes through a first gear in the middle, and the first gear is attached to the inner side of the arc-shaped guide rail.
  • the inner side of the arc-shaped toothed rod is tooth-shaped, and is arranged in close contact with the first gear.
  • the shaking frame is provided with a first motor, and the first motor is connected to the first gear.
  • a water outlet groove is provided under the bottom plate, the water outlet groove is fixed on the swaying frame, and the water outlet groove is inclined.
  • a sloping plate is provided in the crushing box, the sloping plate is located below the crushing reamer, and the bottom of the sloping plate is provided with a vibrator, and the vibrator is used to vibrate the waste on the swash plate to fall .
  • heating plates are provided on both sides of the interior of the crushing box, and the heating plates are electrically heated.
  • the bottom plate is arranged in a pair, respectively hinged to the left baffle and the right baffle, the bottom plate can be opened and closed, a sealing strip is arranged in the middle, and a filter screen is arranged above the bottom plate, so The filter screen is fixed between the left baffle and the right baffle.
  • the bottom of the left baffle and the right baffle form a rectangular extended edge, the extended edge fixes the filter screen, the bottom of the extended edge is provided with a sealing strip, and the sealing strip is attached to the bottom plate, The front part of the left baffle and the right baffle is also provided with a sealing strip, and the sealing strip is attached to the front plate.
  • a method for using a pretreatment device for NdFeB waste material before roasting including:
  • the first motor rotates the first gear
  • the first gear drives the arc-shaped gear rod
  • the bottom plate is turned down on both sides, so that the cleaned waste water flows out through the filter, from the bottom plates on both sides to the middle Flow down to the water outlet, and then start the second motor.
  • the second motor turns the gusset down
  • the drive motor drives the second gear to rotate.
  • the long rack is moved down and the front plate slowly flips down while fitting the rollers. , So that the front plate is placed on the crushing box, start the servo motor, drive the baffle plate to rotate, make the baffle plate block on both sides of the front plate, and finally start the oil cylinder, which pushes the rear plate forward to push out the waste. Slide the waste from the front panel into the crushing box;
  • the waste is roasted, and the conveyor belt transfers the waste to the feeding tray.
  • the lead screw motor and the second telescopic cylinder are activated.
  • the lead screw motor drives the moving seat to move back and forth.
  • the second telescopic cylinder drives the scatter gripper to rotate, so that the gripper scatters the waste.
  • the waste material is shaken and cleaned by the washing device, so that the waste material can fully accept the roasting temperature. After the waste material is cleaned, it is crushed by the crushing device, so that the waste material is turned into small solid particles, which can be fully roasted and the roasting site can be completed faster;
  • the utility model obtains the beneficial effects of sufficient roasting and high roasting efficiency.
  • Figure 1 is a front view of the present invention.
  • FIG. 2 is a schematic diagram of the flushing device of the present invention.
  • Figure 3 is a front view of the flushing device of the present invention.
  • Figure 4 is a bottom schematic view of the flushing device of the present invention.
  • Figure 5 is a schematic view of the bottom opening and closing of the flushing device of the present invention.
  • Figure 6 is a schematic diagram of the crushing device of the present invention.
  • Figure 7 is a cross-sectional view of the crushing device of the present invention.
  • Figure 8 is a front view of the crushing device of the present invention.
  • Fig. 9 is a schematic diagram of the dispersing device in the present invention.
  • Fig. 10 is a cross-sectional view of the dispersing device in the present invention.
  • a pretreatment device for NdFeB waste material before roasting which is characterized in that it includes a washing device 1, a crushing device 3, a centralizing device 2 and a roasting device 5.
  • the washing device 1 has a left baffle 103.
  • the crushing reamer 303 is a pair for crushing NdFeB; the centralizing device 2 is set in the crushing device 3. Between the flushing device 1, the centralizing device 2 has a baffle plate 201, the baffle plate 201 is arranged between the crushing box 301 and the front plate 105, the baffle plate 201 is set in a pair, located on both sides of the front plate 105; roasting device 5 is installed in front of the crushing device 3.
  • the centralizing device 2 also includes a box body 202, a long rack 204 and a second gear 205.
  • the box body 202 is arranged between the crushing box 301 and the front plate 105, and the box body 202 is provided with a guide There are multiple wheels 203 in a vertical row; the long rack 204 is arranged in the box 202, the front of the long rack 204 is attached to the guide wheel 203, and the rear of the long rack 204 is toothed
  • the top of the long rack rack 204 is provided with a roller 2041, the roller 2041 is attached to the front plate 105; the second gear 205 is arranged in the box 202, and the second gear 205 is attached to the long rack 204, and the box 202
  • a starter motor is provided on the outside of the drive motor, and the drive motor is connected to the second gear 205; the second gear 205 is driven to rotate by the drive motor, which can drive the long rack 204 to rise, so that the roller 2041 on the top of the long rack 204
  • a conveyor belt 302 is provided in front of the crushing device 3, and a dispersing device 4 is provided on one side of the crushing device 3.
  • the dispersing device 4 has a supporting frame 401, a movable seat 402, a dispersing gripper 403, The moving frame 407 and the feeding tray 406, the supporting frame 401 is arranged at the front end of the conveyor belt 302, and the guide rail 409 is arranged under the supporting frame 401; Move upward; the dispersing gripper 403 passes through the moving seat 402 and is connected to the moving seat 402 in rotation.
  • the dispersing gripper 403 is located below the moving seat 402; the moving rack 407 is arranged on the guide rail 409; the moving rack 407 feed tray 406 is placed on the moving rack 407, the feeding tray 406 can hold the waste material conveyed by the conveyor belt 302; the front of the support frame 401 is provided with a screw motor 405, which is connected to the moving base 402, which can drive the moving base 402 to move ,
  • the movable seat 402 is provided with a second telescopic cylinder 404, the second telescopic cylinder 404 is connected to the upper end of the dispersing gripper 403, which can drive the dispersing gripper 403 to rotate, so that the bottom end of the dispersing gripper 403 is fed to the material
  • the waste in the tray 406 is scraped, and the joint of the bottom grip of the scraper 403 is elastically arranged, which can touch the feed tray 406 and rebound part resistance.
  • the scraper can break the waste to make the waste roast.
  • the movable frame 407 is fixedly equipped with a third motor 408, and the third motor 408 drives the wheels at the bottom of the movable frame 407, so that the movable frame 407 can be moved to the baking device 5.
  • a rear seat 109 is provided behind the rear plate 106, an oil cylinder 110 is provided on the rear seat 109, a magnet 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.
  • the inner side of the left baffle 103 and the right baffle 104 are provided with sliding grooves 1062, and both sides of the rear plate 106 are attached to the sliding grooves 1062 and can slide in the sliding grooves 1062.
  • two sides of the rear part of the rear plate 106 are provided with sealing magnetic strips, and the rear of the left baffle 103 and the right baffle 104 are provided with extension openings, and the sealing magnetic strips are attached to the extension openings.
  • a dust suction cover 306 is provided on the top of the crushing box 301, and the dust suction cover 306 is suspended and used to suck dust from the crushed waste.
  • the washing device 1 further 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; the base 108 is arranged under the shaking frame 107, and the sliding wheels 1071 are attached to the base 108.
  • the bottom of the rocking frame 107 is provided with a row of equally spaced lower abutment plates 1071, and a row of equally-spaced upper abutment plates 1072 is provided above the base 108.
  • the upper abutment plates 1072 and the lower abutment plates 1071 are mutually Staggered arrangement
  • a spring 1082 is provided between the upper abutment plate 1072 and the lower abutment plate 1071
  • a second telescopic cylinder 404 is provided between the swaying frame 107 and the base 108, and the second telescopic cylinder 404 can drive the swaying frame 107 to sway.
  • the left baffle 103 and the right baffle 104 are provided with arc guide rails 409114 front and rear, and the bottom of the bottom plate 112 is provided with arc racks 1121 at the front and rear.
  • the arc racks 1121 are attached to the inside of the arc guide 409114.
  • a bearing rod 113 is provided between the outer sides of the left baffle 103 and the right baffle 104.
  • the bearing rod 113 passes through the first gear 115.
  • the first gear 115 is attached to the inner side of the arc guide rail 409114, and the arc gear rod 1121 The inner side of 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.
  • a water outlet groove 111 is provided under the bottom plate 112, and the water outlet groove 111 is fixed on the sway frame 107, and the water outlet groove 111 is inclinedly arranged.
  • the crushing box 301 is provided with an inclined plate 304, which is located below the crushing reamer 303, and the bottom of the inclined plate 304 is provided with a vibrator 305, which is used to vibrate the inclined plate 304 The scrap on the fall.
  • heating plates are provided on both sides of the inside of the crushing box 301, and the heating plates are heated by electricity.
  • the bottom plate 112 is arranged in a pair, respectively hinged to the left baffle 103 and the right baffle 104, the bottom plate 112 can be opened and closed, the middle is provided with a sealing strip, and the top of the bottom plate 112 is provided with a filter 118 ,
  • the filter screen 118 is fixed between the left baffle 103 and the right baffle 104.
  • the bottoms of the left baffle 103 and the right baffle 104 form a rectangular Yanbian, and the Yanbian fixes the filter screen 118, and the bottom of the Yanbian is provided with a sealing strip which is attached to the bottom plate 112, and the left baffle 103 and the right baffle 104 A sealing strip is also provided on the front part of the, and the sealing strip is attached to the front plate 105.
  • a method for using a pretreatment device for NdFeB waste material before roasting including:
  • the waste falls from the feed tank 101 into the washing device 1, and then pour the washing liquid from the pouring pipe 102 into the washing device 1, start the first telescopic cylinder 117, and the first telescopic cylinder 117 shrinks back and forth, Shake the shaking frame 107 from side to side on the base 108 to drive the waste material and the cleaning liquid to mix well for 10-15 minutes;
  • the waste is squeezed and crushed under the rotation of the crushing reamer 303, so that the waste falls into small solid particles and falls on the inclined plate 304. Under the vibration of the vibrator 305, the waste falls from the inclined plate 304 to the conveyor belt 302;
  • the waste is roasted, and the conveyor belt 302 transfers the waste to the feeding tray 406.
  • the lead screw motor 405 and the second telescopic cylinder 404 are activated.
  • the lead screw motor 405 drives the moving seat 402 to move back and forth, and the second telescopic cylinder 404 drives the dispersing gripper 403. Rotate to make the gripper break up the waste, and then start the third motor 408 to drive the moving frame 407 to move to the roasting device 5 for roasting treatment.

Abstract

Est divulgué un appareil de prétraitement pour déchets de néodyme-bore-fer avant calcination. L'appareil règle principalement le problème de l'efficacité de la calcination affectée par une calcination insuffisante des déchets de néodyme-bore-fer existants. L'appareil comprend un appareil de rinçage, un appareil de broyage, un appareil de réorientation et un appareil de calcination. L'appareil de rinçage comprend un déflecteur gauche, un déflecteur droit, une plaque avant, une plaque arrière et une plaque de fond. Le déflecteur droit est situé sur le côté droit du déflecteur gauche. La plaque avant est située devant le déflecteur gauche et le déflecteur droit. La plaque arrière est située derrière le déflecteur gauche et le déflecteur droit. La plaque de fond est située au fond du déflecteur gauche, du déflecteur droit, de la plaque avant et de la plaque arrière. L'appareil de broyage est situé devant l'appareil de rinçage. L'appareil de broyage est pourvu d'une boîte de broyage et d'un alésoir de broyage. L'alésoir de broyage est situé dans la boîte de broyage et utilisé pour broyer le néodyme-bore-fer. L'appareil de réorientation est situé entre l'appareil de broyage et l'appareil de rinçage. L'appareil de réorientation est pourvu d'une plaque de blocage de matériau. La plaque de blocage de matériau est située entre la boîte de broyage et la plaque avant. L'appareil de calcination est situé devant l'appareil de broyage. La présente invention a pour avantages d'assurer une calcination suffisante et d'avoir une grande efficacité de calcination.
PCT/CN2021/092331 2020-06-20 2021-05-08 Appareil de prétraitement pour déchets de néodyme-bore-fer avant calcination WO2021254022A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010569536.0 2020-06-20
CN202010569536.0A CN111607695A (zh) 2020-06-20 2020-06-20 一种钕铁硼废料焙烧前的预处理装置

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WO2021254022A1 true WO2021254022A1 (fr) 2021-12-23

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CN (1) CN111607695A (fr)
WO (1) WO2021254022A1 (fr)

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