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CN-122006844-A - Pulp mixing device for recycling neodymium iron boron waste

CN122006844ACN 122006844 ACN122006844 ACN 122006844ACN-122006844-A

Abstract

The invention discloses a slurry mixing device for recycling neodymium iron boron waste, which comprises a slurry mixing tank, an auxiliary grinding device, a circulation disturbance device and a temperature control device, wherein the left side of the top end of the slurry mixing tank is communicated with a feed hopper, the center of the top end of the slurry mixing tank is fixedly connected with a motor, the tail end of a main shaft of the motor is fixedly connected with a stirring shaft which is rotationally connected with the slurry mixing tank, the stirring shaft drives an inclined plate on a turntable to rotate to generate strong axial upward flow, so that materials which are settled at the deepest part of the tank bottom are forcedly lifted, continuously enter a main circulation and are conveyed to a grinding area, stirring dead angles can be eliminated, the materials in the tank are ensured to participate in circulation all over all, the uniformity and the total recovery rate of rare earth are greatly improved, meanwhile, the upward flow at the bottom is combined with the upper grinding and filtering process, the materials are forced to undergo a sorting, crushing and recycling process for many times, microcosmic aggregates which are 'pseudo uniform' can be forcedly broken, rare earth particles are fully decomposed and exposed, and necessary conditions are created for subsequent efficient leaching.

Inventors

  • LIU JUDONG
  • HUANG CHENG
  • Xiao shuimin
  • LAN XIAOMING
  • LU XIAOHUI

Assignees

  • 吉安鑫泰科技有限公司

Dates

Publication Date
20260512
Application Date
20251222

Claims (8)

  1. 1. The utility model provides a neodymium iron boron waste recycling is with mixing device, includes mixing tank (1), auxiliary grinding device (6), circulation disturbance device (7) and temperature control device (8), its characterized in that mixing tank (1) top left side intercommunication has feeder hopper (2), mixing tank (1) top center department fixedly connected with motor (3), the terminal fixedly connected with of main shaft of motor (3) rotates (4) with mixing tank (1) be connected stirring rod (5), stirring rod (4) outside fixedly connected with auxiliary grinding device (6) are inboard, stirring rod (4) outside bottom is equipped with circulation disturbance device (7), mixing tank (1) outside one end is equipped with temperature control device (8), mixing tank (1) right side bottom intercommunication has discharging pipe (9) of inside fixedly connected with valve, mixing tank (1) front end top fixedly connected with controller (10), controller (10) bottom is equipped with access door (11), and sealing joint is in the same place with mixing tank (1) hinge.
  2. 2. The device for recycling neodymium iron boron waste is characterized in that the auxiliary grinding device (6) comprises a heat conduction cylinder (601), the inner side of the stirring rod (5) is provided with the heat conduction cylinder (601), the outer side of the heat conduction cylinder (601) is provided with a uniformly distributed movable grinding block (602) through bolt connection, the top of the inner side of the stirring rod (5) is provided with a fixing seat (603) in a limited sliding manner, the bottom of the fixing seat (603) is provided with a static grinding block (604) through bolt connection, the movable grinding block (602) and the static grinding block (604) are made of carbide alloy materials, the outer sides of the movable grinding block (602) and the static grinding block (604) are respectively provided with radial straight ribs, the radial straight ribs on the outer side of the movable grinding block (602) and the radial straight ribs on the outer side of the static grinding block (604) are arranged in a staggered manner, a gap between the movable grinding block (602) and the static grinding block (604) is arranged in a narrow manner, one end of the heat conduction cylinder (601) is in a sealing connection with a first fixing pipe (607) penetrating through the stirring rod (5), the first fixing pipe (606) and the other end of the stirring rod (5) can be in a sealing connection, the first stirring pipe (606) and the second stirring pipe (5) can be in a sealing connection with the stirring rod (4) and the other end (5) and the stirring rod (4) can be in a sealing connection, and the second fixed pipe (607) can rotate with the stirring rod (5) and the stirring shaft (4).
  3. 3. The device for recycling neodymium iron boron waste materials is characterized in that a first spring (605) is fixedly connected to the top end of the fixing seat (603), and the other end of the first spring (605) is fixedly connected with the stirring rod (5).
  4. 4. The device for recycling neodymium iron boron waste materials is characterized in that one end of the outer side of the second fixing tube (607) is fixedly connected with a small bevel gear (608) positioned on the inner side of the stirring shaft (4), and a large bevel gear (609) positioned on the inner side of the stirring shaft (4) is connected on the outer side of the small bevel gear (608) in a meshed mode.
  5. 5. The device for recycling neodymium iron boron waste materials is characterized in that one end of the outer side of the stirring rod (5) is fixedly connected with a guide filter screen (610) which is obliquely arranged, the guide filter screens (610) are symmetrically distributed on the outer side of the stirring rod (5), filter holes of the guide filter screen (610) are arranged in a strip shape, a cross section of the filter holes of the guide filter screen (610) is arranged in an isosceles trapezoid shape, and the guide filter screen (610) is made of polyurethane.
  6. 6. The device for recycling neodymium iron boron waste materials is characterized in that one end of the outer side of the first fixing tube (606) and the other end of the outer side of the second fixing tube (607) are fixedly connected with cams (611) located on the inner side of the stirring rod (5), push blocks (612) are contacted with the outer side of the cams (611), limiting frames (613) which are in limiting sliding on the inner side of the stirring rod (5) are fixedly connected with the outer side of the push blocks (612), one side of each limiting frame (613) is fixedly connected with a second spring (614), the other end of each second spring (614) is fixedly connected with the stirring rod (5), fixing frames (615) penetrating through the stirring rod (5) are fixedly connected to the upper end and the lower end of each limiting frame (613), the fixing frames (615) can slide back and forth with the stirring rod (5), fixing shafts (616) which are uniformly distributed are fixedly connected to the outer side ends of the fixing frames (616), and the other ends of the fixing shafts (616) are fixedly connected with ball blocks (617).
  7. 7. The device for recycling neodymium iron boron waste materials is characterized in that the circulation disturbance device (7) comprises a rotary table (701), the bottom end of the outer side of the stirring shaft (4) is fixedly connected with the rotary table (701) which is rotationally connected with the slurry mixing tank (1), and the top end of the rotary table (701) is fixedly connected with an annular inclined plate (702) which is uniformly distributed.
  8. 8. The device for recycling neodymium iron boron waste materials, as set forth in claim 4, wherein the temperature control device (8) comprises a constant temperature circulator (801), one end of the outer side of the size mixing tank (1) is provided with the constant temperature circulator (801), a liquid inlet end of the constant temperature circulator (801) is communicated with a backflow pipe (802), the other end of the backflow pipe (802) is communicated with the size mixing tank (1), a rotating sleeve (803) which is annularly arranged is hermetically rotated at the inner side edge of the size mixing tank (1), the rotating sleeve (803) is fixedly connected with a stirring rod (5), the rotating sleeve (803) is hermetically communicated with a first fixed pipe (606) in an auxiliary grinding device (6), the first fixed pipe (606) can rotate with the rotating sleeve (803), a liquid outlet end of the constant temperature circulator (801) is communicated with a liquid outlet pipe (804) which penetrates through the size mixing tank (1), the other end of the liquid outlet pipe (804) is fixedly connected with the size mixing tank (1), the other end of the liquid outlet pipe (804) is communicated with a fixed pipe (805) which penetrates through the size mixing tank (1), the fixed pipe (805) is fixedly inserted into the stirring shaft (805) of the auxiliary grinding device (805), and fixed pipe (805) and big bevel gear (609) in size mixing jar (1) and auxiliary grinding device (6) fixed pipe (805) outside sealed rotation is connected with and rotates cover (806), and fixed pipe (805) are located the inboard part outside of rotating cover (806) and have seted up evenly distributed's through-hole, fixed pipe (805) are connected with (mixing) shaft (4) rotation, second fixed pipe (607) in auxiliary grinding device (6) and rotate cover (806) sealed intercommunication, and second fixed pipe (607) in auxiliary grinding device (6) can rotate with rotating cover (806).

Description

Pulp mixing device for recycling neodymium iron boron waste Technical Field The invention relates to the technical field of neodymium iron boron waste recycling, in particular to a slurry mixing device for neodymium iron boron waste recycling. Background The neodymium iron boron permanent magnet material is used as industrial monosodium glutamate, and is widely applied to key fields such as wind power, new energy automobiles, variable frequency household appliances and the like, oil sludge, leftover materials, defective products and other waste materials are rich in neodymium, praseodymium, dysprosium and other high-value rare earth elements, so that the efficient recovery of the waste materials has significance for ensuring strategic resource supply and promoting circular economy development, hydrometallurgy is the main flow process for recycling neodymium iron boron waste materials at present, the primary and key links are that slurry mixing, namely, the waste materials and specific leaching acid liquor are fully mixed in a slurry mixing device to destroy oxide layers and bonding phases on the surfaces of particles, so that rare earth particles are fully exposed, necessary conditions are created for subsequent efficient chemical leaching, however, the slurry mixing device in the prior art exposes a plurality of technical problems when facing the characteristics of high density, easy hardening and uneven particle size distribution of the neodymium iron boron waste materials, and uneven stirring and dead angle problems are firstly, the traditional stirrer (such as paddles and turbines) is in operation, particularly, a central shaft area extremely forms blind areas, the high-density rare earth materials are easy to settle and are more easily mixed at the bottom of a tank body, the settling and are not broken, the high-density rare earth materials are more evenly mixed in a slurry mixing device, the subsequent efficient leaching solution is more stable, the high-level is more difficult to cause the problem of the stable, the magnetic material is greatly absorbed and the magnetic material is greatly broken, the high-level is completely, the magnetic material is completely cannot be absorbed and is completely, the high in the subsequent process is completely, and is greatly absorbed and is completely and is more difficult, the high in the magnetic material is completely and has high-quality is greatly high-quality and has high quality and high quality is more stable quality and is greatly absorbed in the quality, the leaching period is prolonged, and the chemical reagent is excessively consumed, so the pulp mixing device for recycling the NdFeB waste is provided for solving the problems. Disclosure of Invention The invention solves the technical problems of the prior art, and can effectively solve the problems in the background art. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The utility model provides a neodymium iron boron waste recycling is with size mixing device, includes size mixing tank, supplementary grinder, circulation disturbance device and temperature control device, size mixing tank top left side intercommunication has the feeder hopper, size mixing tank top center department fixedly connected with motor, the main shaft end fixedly connected with of motor rotates the (mixing) shaft of being connected with size mixing tank, (mixing) shaft outside fixedly connected with puddler, the puddler inboard is equipped with supplementary grinder, (mixing) shaft outside bottom is equipped with circulation disturbance device, size mixing tank outside one end is equipped with temperature control device, size mixing tank right side bottom intercommunication has the discharging pipe of inside fixedly connected with valve, size mixing tank front end top fixedly connected with controller, controller bottom is equipped with the access door, and access door and size mixing tank seal hinge link together. As a further improvement of the invention, the auxiliary grinding device comprises a heat conduction cylinder, the inner side of the stirring rod is provided with the heat conduction cylinder, the outer side of the heat conduction cylinder is connected with uniformly distributed movable grinding blocks through bolts, the top of the inner side of the stirring rod is provided with a fixed seat in a limiting sliding manner, the bottom of the fixed seat is connected with a static grinding block through bolts, the movable grinding block and the static grinding block are made of carbide alloy materials, the outer sides of the movable grinding block and the static grinding block are respectively provided with radial straight ribs, the radial straight ribs on the outer side of the movable grinding block and the radial straight ribs on the outer side of the static grinding block are arranged in a staggered manner, a gap between the movable grinding block and the static gri