CN117619523A - Processing technology and processing equipment for neodymium-iron-boron permanent magnet - Google Patents

Abstract

The invention relates to the technical field of permanent magnet machining, in particular to a machining process and machining equipment for a neodymium-iron-boron permanent magnet. This processing equipment of neodymium iron boron permanent magnet includes supporting component, feed assembly, smashes subassembly, separation subassembly, filtration subassembly, impact subassembly and stirring subassembly, smashes the subassembly and includes smashes piece, first compression piece and second compression piece, and first compression piece includes first compressor, blast pipe, bolster and pan feeding pipe, and impact subassembly includes columniform solid fixed ring and gasbag. The crushing part of the crushing assembly is used for crushing particles, the first compression part is used for driving the particles to enter the crushing part, the air bag of the impact assembly and the one-way valve provide intermittent high-pressure air flow, so that the feeding assembly is not easy to block, meanwhile, the particles are crushed in the crushing part more thoroughly, the second compression part is used for blowing the particles to rotate and rub the crushed particles, the stirring assembly is blown to rotate, and the stirring assembly is used for stirring the particles, so that the particles are crushed more easily.

Description

Processing technology and processing equipment for neodymium-iron-boron permanent magnet

Technical Field

The invention relates to the technical field of permanent magnet machining, in particular to a machining process and machining equipment for a neodymium-iron-boron permanent magnet.

Background

The neodymium-iron-boron permanent magnet processing equipment is special equipment for processing neodymium-iron-boron permanent magnet materials, is one of the most widely used permanent magnet materials at present, has high magnetic energy product, good magnetic performance and chemical stability, and is widely applied to the fields of motors, generators, sensors, acoustic devices, medical equipment and the like. The neodymium iron boron permanent magnet processing equipment comprises powder preparation equipment, forming equipment, sintering equipment and surface treatment equipment, wherein the powder preparation equipment is common crushing equipment and is used for refining solid materials into powder, and the crushing process is realized through the action of high-speed air flow. The powder preparation equipment at the present stage is not thoroughly crushed, and the hopper is easy to be blocked.

Disclosure of Invention

Based on this, it is necessary to provide a processing technology and processing equipment for a neodymium iron boron permanent magnet, so as to solve at least one of the above technical problems.

The utility model provides a processing equipment of neodymium iron boron permanent magnet, including supporting component, feeding subassembly, crushing subassembly, separation subassembly, filtering component, impact module and stirring subassembly, supporting component fixed mounting is subaerial, feeding subassembly, crushing subassembly and separation subassembly are all installed in supporting component's top, feeding subassembly installs in supporting component's top one end, crushing subassembly installs in supporting component's middle part, and crushing subassembly links to each other with feeding subassembly, separation subassembly installs in supporting component's top other end, and separation subassembly links to each other with crushing subassembly, filtering component links to each other with separation subassembly's upper end lateral wall, crushing subassembly includes crushing piece, first compression piece and second compression piece, crushing piece links to each other with feeding subassembly, first compression piece and second compression piece are all installed on supporting component's lateral wall, and first compression piece and second compression piece all link to each other with crushing piece, impact module fixed cover is located in the first compression piece, stirring subassembly rotationally installs in crushing piece's inside, first compression piece includes first compressor, the blast pipe, buffer piece and pan feeding pipe, first compressor installs on supporting component's the lateral wall, and separation subassembly links to each other with crushing subassembly's upper end lateral wall, the fixed end links to each other with the last fixed ring of buffer ring of separation subassembly, and the fixed ring is located in the fixed ring of air bag is located with the fixed end that the fixed ring that the lower end links to each other with the air bag, and the fixed ring of buffer is fixed ring is fixed, and the fixed ring is set up in the fixed ring of the air bag.

The feeding component is used for throwing particles, the crushing component of the crushing component is used for crushing the particles, the first compression component is used for driving the particles to enter the crushing component, the air bag of the impact component and the one-way valve provide intermittent high-pressure air flow, so that the feeding component is not easy to block, meanwhile, the particles are crushed in the crushing component more thoroughly, the second compression component is used for blowing the particles to rotate, the stirring component is blown to rotate, the stirring component is used for stirring the particles, the particles are easy to crush, and the filtering component is used for filtering the particles which cannot be filtered by the filter screen bag.

Preferably, the feeding assembly comprises a feeding funnel, a spiral stirrer and a storage cavity, wherein the feeding funnel is arranged at one end of the top of the supporting assembly, the spiral stirrer is arranged at the bottom of the feeding funnel, the bottom of the feeding funnel is communicated with one end of the top of the spiral stirrer, the upper end of the storage cavity is communicated with the other end of the spiral stirrer, and the lower end of the storage cavity is communicated with the middle of the feeding pipe.

Preferably, the buffer member comprises an upper buffer tube and a lower buffer tube, wherein the upper end of the upper buffer tube is connected with the upper end of the feeding tube, the lower end of the upper buffer tube is inserted into the air bag, the upper end of the lower buffer tube is inserted into the air bag, and the lower end of the lower buffer tube is connected with the exhaust tube.

Preferably, the fixed ring is sleeved at the lower end of the upper buffer tube and the upper end of the lower buffer tube, the check valve is arranged at the upper end of the upper buffer tube, and a circulation space is formed between the check valve and the upper buffer tube.

Preferably, the crushing piece comprises a crushing cavity, a recovery pipe, a recovery barrel, a first conveying pipe and a first filter, wherein the crushing cavity is arranged in the middle of the supporting component, the upper end of the recovery pipe is inserted below the crushing cavity, the top of the recovery barrel is communicated with the lower end of the recovery pipe, the upper end of the first conveying pipe is inserted in the separating component, the first filter is fixedly arranged in the crushing cavity, the lower end of the first conveying pipe penetrates through the top of the crushing cavity, the lower end of the first conveying pipe is connected with the top of the first filter, a circulating groove is formed between the crushing cavity and the first filter, the feeding pipe is communicated with the circulating groove, four cutter grooves are formed in the inner wall of the crushing cavity, the end wall of each cutter groove is connected with a spring, the other end of the spring is fixedly connected with a cutter, the cutter is slidingly inserted in the cutter grooves, the cutter is in butt with the stirring component, and a pushing inclined plane is formed on one side of the cutter adjacent to the stirring component.

Preferably, the second compression member comprises a second compressor, a second conveying pipe and a plurality of high-pressure nozzles, wherein the second compressor is arranged on the side wall of the supporting component, the second compressor is located below the first compressor, the lower end of the second conveying pipe is connected with the second compressor, one ends of the high-pressure nozzles are inserted into the crushing cavity, and the other ends of the high-pressure nozzles are communicated with the second conveying pipe.

Preferably, the separation assembly comprises a gas-powder separation tank, a sample collection barrel and a filter bag, wherein the gas-powder separation tank is arranged at the other end of the top of the support assembly, the sample collection barrel is arranged below the gas-powder separation tank, and the filter bag is arranged inside the gas-powder separation tank.

Preferably, the filter assembly comprises a discharge pipe and a cleaning filter, wherein the upper end of the discharge pipe is fixedly connected with the gas-powder separation tank, and the cleaning filter is fixedly connected with the lower end of the discharge pipe.

Preferably, the stirring assembly comprises a plurality of stirring pieces, the stirring pieces are rotatably arranged in the circulating groove, the high-pressure nozzles are obliquely oriented to the stirring pieces, and a particle passing groove is formed between each stirring piece and the inner wall of the crushing cavity.

The invention also provides a processing technology of the neodymium-iron-boron permanent magnet, which adopts the processing equipment of the neodymium-iron-boron permanent magnet, and comprises the following steps:

step S1: starting neodymium iron boron permanent magnet processing equipment, throw into the granule that needs to smash from feed hopper's top, the spiral agitator stirs the granule and carries to the storage chamber in, the granule drops in the bottom of storage chamber, first compression piece operation produces high-pressure gas, high-pressure gas enters into the lower buffer tube of bolster through the blast pipe, high-pressure gas is in entering into the upper buffer tube through the gasbag, a portion high-pressure gas flows into the pan feeding pipe through the circulation space, in entering into the circulation groove in smashing the chamber through the pan feeding pipe, the granule of storage chamber bottom is under the effect of negative pressure, the dropping rate of the granule of storage chamber bottom is accelerated.

Step S2: meanwhile, the particles are driven by high-pressure gas to enter a circulating groove in the crushing cavity, the other part of high-pressure gas is blocked by the one-way valve and returns to the air bag, the internal pressure of the air bag rises, the air bag expands until the air bag expands to the limit, namely, the air bag pushes against the fixed ring, the internal pressure of the air bag is overlarge, the one-way valve is pushed to open, the air flow in the feeding pipe is enlarged, the feeding pipe drives more particles to enter the circulating groove in the crushing cavity, the high-pressure gas in the air bag flows out and returns to the original state, the one-way valve is closed, and the high-pressure gas generated from the first compression part is filled in the air bag again and is continuously bad.

Step S3: the second compressor is started to generate flushing air flow, the flushing air flow flows through the second conveying pipe and the high-pressure nozzles to enter the circulating tank, the flushing air flow sprayed out of the high-pressure nozzles is used for blowing the stirring piece to rotationally stir the large particles at the outermost layer on one hand, and the flushing air flow is used for blowing each particle to rotationally rub in the circulating tank, and finally, the particles meeting the specification after friction and crushing flow into the gas-powder separation tank through the first filter and the first conveying pipe.

Step S4: the particles entering the gas-powder separation tank fall into the sample collection barrel under the separation of the gas-powder separation tank, part of the particles flow into the filter bag at the upper part under the driving of the air flow, the air flow carrying the particles is filtered by the filter bag, so that part of the particles also fall into the sample collection barrel, the air flow carries tiny particles into the cleaning filter, and the particles are discharged into the atmosphere under the filtration of the cleaning filter.

According to the invention, by arranging the air bag, neodymium iron boron permanent magnet processing equipment is started, particles to be crushed are input from the top of the feeding funnel, the spiral stirrer stirs and conveys the particles into the storage cavity, the particles fall at the bottom of the storage cavity, the first compression part runs to generate high-pressure gas, the high-pressure gas enters the lower buffer tube of the buffer part through the exhaust pipe, the high-pressure gas enters the upper buffer tube through the air bag, a part of the high-pressure gas flows into the feeding pipe through the circulation space, the particles enter the circulation groove in the crushing cavity through the feeding pipe, the dropping rate of the particles at the bottom of the storage cavity is accelerated under the action of negative pressure, the particles are driven by the action of the high-pressure gas to enable the particles to enter the circulation groove in the crushing cavity, the other part of the high-pressure gas is blocked by the one-way valve and then returns to the air bag, the internal pressure of the air bag rises, the air bag expands until the air bag expands to the limit, namely the air bag pushes against the fixed ring, the air bag internal pressure is excessively high, the one-way valve is pushed up, a part of the high-pressure gas stored in the air bag can flow into the feeding pipe through the circulation space, the circulation groove is in the crushing cavity is formed, the high-pressure air flow can flow from the one-way and the air flow can flow in the circulation groove is greatly, the high pressure material can be recovered, the bottom the circulation groove is formed, the high pressure material can be crushed, and the particles in the bottom the circulation groove is further, and the bottom of the air can be compressed, and the air in the circulation groove is continuously, and the high pressure material can be continuously, and the bottom in the circulation cavity is compressed, and the high pressure material can be continuously, and the air can be compressed. Through setting up the stirring piece, start at the second compressor and produce the scour air current, scour air current flow through second conveyer pipe and a plurality of high pressure nozzle enter into the circulation groove, the scour air current of follow high pressure nozzle blowout is used for blowing the rotatory stirring big granule of outermost of stirring piece on the one hand, make the big granule of outermost smash into little granule under the stirring of stirring piece, the other party is used for blowing each granule and rotates friction in the circulation groove, make the granule diminish, the granule that accords with the specification after the final crushing flows into the gas-powder separation jar through first filter and first conveyer pipe, the frictional force between the granule in the circulation groove can also intermittent type improvement from the strong pressure air current that flows out in circulation space and the check valve simultaneously, make the granule more easy to smash, and then improve the crushing rate of granule. Through setting up the filter bag, under the separation of the granule in entering gas-powder separation jar in the gas-powder separation jar, part granule drops in the sample collecting vessel, part granule flows under the drive of air current in the filter bag of upper portion, the air current that carries the granule is under the filtration of filter bag for part granule also drops in the sample collecting vessel, the air current carries tiny granule to enter into the clean filter, in the filtration of clean filter is discharged into the atmosphere, when the strong pressure air current that flows out in circulation space and the check valve is in getting into the filter bag simultaneously, the effect of rocking of filter bag can be increased to the strong pressure air current, make the filter bag be difficult to be as fast as blocking up, and then the live time of extension filter bag. The invention has smart structure, can improve the crushing rate of the particles, can prevent the feed hopper from being blocked, and can prolong the service time of the filter bag through intermittent strong air flow when the particles enter the filter bag.

Drawings

Fig. 1 is a schematic perspective view of an embodiment.

FIG. 2 is a schematic perspective view of an embodiment with the cover removed

Fig. 3 is a schematic perspective view of a first compression member according to an embodiment.

Fig. 4 is a schematic perspective view of a portion of a pulverizing chamber according to an embodiment.

FIG. 5 is a schematic plan view of an exemplary buffer.

FIG. 6 is a schematic cross-sectional view of the embodiment of FIG. 5.

FIG. 7 is an enlarged schematic diagram of FIG. 4A according to an embodiment.

In the figure: 10. a support assembly; 20. a feed assembly; 21. a feed hopper; 22. a helical agitator; . 23. A storage cavity; 30. a crushing assembly; 31. crushing the piece; 32. a first compression member; 33. a second compression member; 310. a crushing cavity; 311. a recovery pipe; 312. a recycling bin; 313. a first delivery tube; 314. a first filter; 315. a circulation tank; 320. a first compressor; 321. an exhaust pipe; 322. a buffer member; 323. a feeding pipe; 324. a one-way valve; 325. an upper buffer tube; 326. a lower buffer tube; 327. a circulation space; 330. a second compressor; 331. a second delivery tube; 332. a high pressure nozzle; 40. a separation assembly; 41. a gas-powder separation tank; 42. a sample collection barrel; 43. a cutter groove; 44. a cutter; 45. pushing against the inclined plane; 50. a filter assembly; 51. a discharge pipe; 52. cleaning the filter; 60. an impact assembly; 61. a fixing ring; 62. an air bag; 70. a stirring assembly; 71. a stirring member; 710. the particles pass through the trough.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

An embodiment of the present invention is shown in fig. 1 to 7, and is a processing apparatus for a neodymium iron boron permanent magnet, which includes a support assembly 10, a feeding assembly 20, a crushing assembly 30, a separation assembly 40, a filtering assembly 50, an impact assembly 60 and a stirring assembly 70, wherein the support assembly 10 is fixedly installed on the ground, the feeding assembly 20, the crushing assembly 30 and the separation assembly 40 are all installed on the top of the support assembly 10, the feeding assembly 20 is installed on one end of the top of the support assembly 10, the crushing assembly 30 is installed in the middle of the support assembly 10, the crushing assembly 30 is connected with the feeding assembly 20, the separation assembly 40 is installed on the other end of the top of the support assembly 10, the separation assembly 40 is connected with the crushing assembly 30, the filtering assembly 50 is connected with the upper side wall of the separation assembly 40, the crushing assembly 30 includes a crushing member 31, a first compression member 32 and a second compression member 33, the crushing member 31 is connected with the feeding assembly 20, the first compression part 32 and the second compression part 33 are both arranged on the side wall of the supporting component 10, the first compression part 32 and the second compression part 33 are both connected with the crushing part 31, the impact component 60 is fixedly sleeved in the first compression part 32, the stirring component 70 is rotationally arranged in the crushing part 31, the first compression part 32 comprises a first compressor 320, an exhaust pipe 321, a buffer part 322 and a feeding pipe 323, the first compressor 320 is arranged on the side wall of the supporting component 10, one end of the exhaust pipe 321 is fixedly connected with the first compressor 320, the lower end of the buffer part 322 is fixedly connected with the other end of the exhaust pipe 321, the upper end of the feeding pipe 323 is fixedly connected with the upper end of the buffer part 322, the lower end of the feeding pipe 323 is inserted in the crushing part 31, the inside of the buffer part 322 is also provided with a one-way valve 324, the impact component 60 comprises a cylindrical fixing ring 61 and an air bag 62, the fixed ring 61 is fixedly sleeved in the middle of the buffer piece 322, the air bag 62 is installed in the fixed ring 61, and the air bag 62 is sleeved in the buffer piece 322.

The feeding component 20 is used for throwing particles, the crushing component 31 of the crushing component 30 is used for crushing the particles, the first compression component 32 is used for driving the particles to enter the crushing component 31, the air bag 62 of the impact component 60 and the one-way valve 324 provide intermittent high-pressure air flow, so that the feeding component 20 is not easy to block, meanwhile, the particles are crushed in the crushing component 31 more thoroughly, the second compression component 33 is used for blowing the particles to rotate and rub the crushed particles, the stirring component 70 is blown to rotate, the stirring component 70 is used for stirring the particles, the particles are crushed more easily, and the filtering component 50 is used for filtering the particles which are not filtered by the filter screen bag.

As shown in fig. 2, the feeding assembly 20 includes a feeding funnel 21, a screw stirrer 22 and a storage cavity 23, the feeding funnel 21 is installed at one end of the top of the supporting assembly 10, the screw stirrer 22 is installed at the bottom of the feeding funnel 21, the bottom of the feeding funnel 21 is communicated with the top of one end of the screw stirrer 22, the upper end of the storage cavity 23 is communicated with the other end of the screw stirrer 22, and the lower end of the storage cavity 23 is communicated with the middle of the feeding pipe 323.

As shown in fig. 1 to 3, the buffer 322 includes an upper buffer tube 325 and a lower buffer tube 326, the upper end of the upper buffer tube 325 is connected to the upper end of the inlet tube 323, the lower end of the upper buffer tube 325 is inserted into the airbag 62, the upper end of the lower buffer tube 326 is inserted into the airbag 62, and the lower end of the lower buffer tube 326 is connected to the exhaust tube 321.

As shown in fig. 5 and 6, the fixing ring 61 is sleeved on the lower end of the upper buffer tube 325 and the upper end of the lower buffer tube 326, the check valve 324 is mounted on the upper end of the upper buffer tube 325, and a circulation space 327 is formed between the check valve 324 and the upper buffer tube 325.

As shown in fig. 2 and 4, the crushing member 31 includes a crushing cavity 310, a recovery pipe 311, a recovery barrel 312, a first conveying pipe 313 and a first filter 314, the crushing cavity 310 is mounted in the middle of the supporting assembly 10, the upper end of the recovery pipe 311 is inserted below the crushing cavity 310, the top of the recovery barrel 312 is communicated with the lower end of the recovery pipe 311, the upper end of the first conveying pipe 313 is inserted in the separating assembly 40, the first filter 314 is fixedly mounted in the crushing cavity 310, the lower end of the first conveying pipe 313 is penetrated at the top of the crushing cavity 310, the lower end of the first conveying pipe 313 is connected with the top of the first filter 314, a circulation groove 315 is formed between the crushing cavity 310 and the first filter 314, a feeding pipe 323 is communicated with the circulation groove 315, four cutter grooves 43 are formed in the inner wall of the crushing cavity 310, the end wall of each cutter groove 43 is connected with a spring diagram not shown, the other end of the spring is fixedly connected with a cutter 44, the cutter 44 is slidingly inserted in the groove 43, the cutter 44 abuts against the stirring assembly 70, and one side of the cutter 44 adjacent to the stirring assembly 70 is formed with a pushing inclined surface 45.

As shown in fig. 2 and 4, the second compressing element 33 includes a second compressor 330, a second conveying pipe 331 and a plurality of high pressure nozzles 332, the second compressor 330 is mounted on the sidewall of the supporting assembly 10, the second compressor 330 is located below the first compressor 320, the lower end of the second conveying pipe 331 is connected to the second compressor 330, one ends of the high pressure nozzles 332 are inserted into the crushing cavity 310, and the other ends of the high pressure nozzles 332 are communicated with the second conveying pipe 331.

As shown in fig. 2, the separation assembly 40 includes a gas-powder separation tank 41, a sample collection tub 42, and a filter bag not shown, the gas-powder separation tank 41 is installed at the other end of the top of the support assembly 10, the sample collection tub 42 is installed below the gas-powder separation tank 41, and the filter bag is installed inside the gas-powder separation tank 41.

As shown in fig. 2, the filter assembly 50 includes a discharge pipe 51 and a cleaning filter 52, the upper end of the discharge pipe 51 being fixedly connected to the gas-powder separation tank 41, the cleaning filter 52 being fixedly connected to the lower end of the discharge pipe 51.

As shown in fig. 2, the stirring assembly 70 includes a plurality of stirring members 71, each of the plurality of stirring members 71 is rotatably installed in the circulation tank 315, a plurality of high pressure nozzles 332 are inclined toward the plurality of stirring members 71, and a particle passing groove 710 is formed between each stirring member 71 and the inner wall of the pulverizing chamber 310.

The invention also provides a processing technology of the neodymium-iron-boron permanent magnet, which adopts the processing equipment of the neodymium-iron-boron permanent magnet, and comprises the following steps:

step S1: starting neodymium iron boron permanent magnet processing equipment, throw into the granule that needs smashing from the top of feed hopper 21, helical agitator 22 stirs the granule and carries to storage chamber 23 in, the granule drops in the bottom of storage chamber 23, first compression piece 32 operation produces high-pressure gas, high-pressure gas is in the lower buffer tube 326 of buffer 322 through blast pipe 321, high-pressure gas is in the upper buffer tube 325 through gasbag 62, a portion high-pressure gas flows into feed pipe 323 through circulation space 327, in the circulation groove 315 that enters into smashing chamber 310 through feed pipe 323, the granule in storage chamber 23 bottom accelerates the dropping rate of storage chamber 23 bottom granule under the effect of negative pressure.

Step S2: meanwhile, the particles are driven by high-pressure gas to enter the circulation groove 315 in the crushing cavity 310, the other part of the high-pressure gas is blocked by the check valve 324 and returns to the air bag 62, the internal pressure of the air bag 62 rises, the air bag 62 expands until the air bag 62 expands to the limit, namely, the air bag 62 pushes against the fixed ring 61, the internal pressure of the air bag 62 is overlarge and pushes against the check valve 324 to open, the air flow in the feeding pipe 323 becomes larger, the feeding pipe 323 drives more particles to enter the circulation groove 315 in the crushing cavity 310, the high-pressure gas in the air bag 62 returns to the original state after flowing out, the check valve 324 is closed, and the high-pressure gas generated from the first compression part 32 is filled in the air bag 62 again and is continuously damaged.

Step S3: the second compressor 330 is started to generate a flushing air flow, the flushing air flow flows through the second conveying pipe 331 and the plurality of high-pressure nozzles 332 to enter the circulation tank 315, the flushing air flow sprayed from the high-pressure nozzles 332 is used for blowing the stirring piece 71 to stir the big particles at the outermost layer in a rotating way, and is used for blowing each particle to rub in the circulation tank 315 in a rotating way, and finally, the particles meeting the specification after the friction and pulverization flow into the gas-powder separation tank 41 through the first filter 314 and the first conveying pipe 313.

Step S4: the particles entering the gas-powder separation tank 41 are separated by the gas-powder separation tank 41, part of the particles fall into the sample collection barrel 42, part of the particles flow into the upper filter bag under the driving of the air flow, the air flow carrying the particles is filtered by the filter bag, so that part of the particles also fall into the sample collection barrel 42, the air flow carries tiny particles into the cleaning filter 52, and the particles are discharged into the atmosphere under the filtering of the cleaning filter 52.

When in installation: the feeding component 20, the crushing component 30 and the separating component 40 are all installed at the top of the supporting component 10, the feeding component 20 is installed at one end of the top of the supporting component 10, the crushing component 30 is installed at the middle of the supporting component 10, the separating component 40 is installed at the other end of the top of the supporting component 10, the first compressing component 32 and the second compressing component 33 are all installed on the side wall of the supporting component 10, the stirring component 70 is rotatably installed inside the crushing component 31, the first compressor 320 is installed on the side wall of the supporting component 10, the air bag 62 is installed inside the fixing ring 61, the feeding funnel 21 is installed at one end of the top of the supporting component 10, and the spiral stirrer 22 is installed at the bottom of the feeding funnel 21. The check valve 324 is installed in the upper end of last buffer tube 325, smash the chamber 310 and install in the middle part of supporting component 10, first filter 314 fixed mounting is in the inside of smashing the chamber 310, second compressor 330 is installed on the lateral wall of supporting component 10, gas-powder separation tank 41 is installed in the top other end of supporting component 10, sample collection vessel 42 is installed in the below of gas-powder separation tank 41, filter bag is installed in the inside of gas-powder separation tank 41, a plurality of stirring pieces 71 are all rotationally installed in circulation tank 315.

When in use, the utility model is characterized in that: 1. starting the NdFeB permanent magnet processing equipment, throwing particles to be crushed from the top of a feeding funnel 21, stirring and conveying the particles into a storage cavity 23 by a spiral stirrer 22, enabling the particles to fall on the bottom of the storage cavity 23, enabling a first compression part 32 to operate, generating high-pressure gas, enabling the high-pressure gas to enter a lower buffer tube 326 of a buffer part 322 through an exhaust pipe 321, enabling the high-pressure gas to enter an upper buffer tube 325 through an air bag 62, enabling a part of the high-pressure gas to flow into a material inlet pipe 323 through a circulation space 327, enabling the particles on the bottom of the storage cavity 23 to enter a circulation groove 315 in a crushing cavity 310 through the material inlet 323, accelerating the falling rate of the particles on the bottom of the storage cavity 23 under the action of negative pressure, enabling the particles to enter the circulation groove 315 in the crushing cavity 310 under the action of the high-pressure gas, the other part of the high-pressure gas is blocked by the check valve 324 and then returns to the air bag 62, the internal pressure of the air bag 62 rises, the air bag 62 expands until the air bag 62 expands to the limit, namely, the air bag 62 pushes against the fixed ring 61, the internal pressure of the air bag 62 is overlarge and pushes against the check valve 324 to open, so that the high-pressure gas stored in the air bag 62 can flow out of the circulating space 327 and the check valve 324 to form strong-pressure gas flow, the gas flow in the feeding pipe 323 becomes large, the feeding pipe 323 can greatly disturb the particles at the bottom of the storage cavity 23, the bottom of the storage cavity 23 is prevented from being blocked, and meanwhile, more particles can be driven to enter the circulating groove 315 in the crushing cavity 310, the high-pressure gas in the air bag 62 returns to the original state after flowing out, the check valve 324 is closed, and the high-pressure gas generated from the first compression piece 32 is filled in the air bag 62 again and is continuously bad.

2. The second compressor 330 is started to generate a flushing air flow, the flushing air flow flows through the second conveying pipe 331 and the plurality of high-pressure nozzles 332 to enter the circulation tank 315, the flushing air flow sprayed out from the high-pressure nozzles 332 is used for blowing the stirring piece 71 to stir the big particles at the outermost layer in a rotating way, so that the big particles at the outermost layer are impacted on the stirring piece 71 and smashed into small particles under the stirring of the stirring piece 71, the other side is used for blowing each particle to rub in the circulation tank 315 in a rotating way, so that the particles become smaller, finally, the particles meeting the specification after smashing flow into the air-powder separation tank 41 through the first filter 314 and the first conveying pipe 313, meanwhile, the friction force between the particles in the circulation tank 315 can be intermittently improved through the strong-pressure air flow flowing out of the circulation space 327 and the one-way valve 324, so that the particles are smashed more easily, the stirring piece 71 rotates and the stirring piece 71 pushes the cutter 44 to push the cutter 45 to slide towards the tank 43, the spring is compressed, and after the particles are separated from the stirring piece 71, the spring is restored, the cutter 44 is used for smashing the particles more easily, and the cutter blades are smashed easily.

3. The particles entering the gas-powder separation tank 41 fall into the sample collection barrel 42 under the separation of the gas-powder separation tank 41, part of the particles flow into the upper filter bag under the driving of the air flow, the air flow carrying the particles is filtered by the filter bag, so that part of the particles also fall into the sample collection barrel 42, the air flow carries tiny particles into the cleaning filter 52, the particles are discharged into the atmosphere under the filtration of the cleaning filter 52, and meanwhile, when the strong air flow flowing out of the circulating space 327 and the one-way valve 324 enters the filter bag, the shaking effect of the filter bag can be increased by the strong air flow, so that the filter bag is not easy to be blocked, and the service time of the filter bag is prolonged.

According to the invention, by arranging the air bag 62, starting neodymium iron boron permanent magnet processing equipment, feeding particles to be crushed from the top of the feeding hopper 21, stirring and conveying the particles into the storage cavity 23 by the spiral stirrer 22, enabling the particles to fall on the bottom of the storage cavity 23, enabling the first compression part 32 to operate, generating high-pressure gas, enabling the high-pressure gas to enter the lower buffer tube 326 of the buffer piece 322 through the exhaust pipe 321, enabling the high-pressure gas to enter the upper buffer tube 325 through the air bag 62, enabling a part of the high-pressure gas to flow into the feeding pipe 323 through the circulating space 327, enabling the particles on the bottom of the storage cavity 23 to enter the circulating groove 315 in the crushing cavity 310 under the action of negative pressure, enabling the particles to enter the circulating groove 315 in the crushing cavity 310 under the action of the high-pressure gas, the other part of the high-pressure gas is blocked by the check valve 324 and then returns to the air bag 62, the internal pressure of the air bag 62 rises, the air bag 62 expands until the air bag 62 expands to the limit, namely, the air bag 62 pushes against the fixed ring 61, the internal pressure of the air bag 62 is overlarge and pushes against the check valve 324 to open, so that the high-pressure gas stored in the air bag 62 can flow out of the circulating space 327 and the check valve 324 to form strong-pressure gas flow, the gas flow in the feeding pipe 323 becomes large, the feeding pipe 323 can greatly disturb the particles at the bottom of the storage cavity 23, the bottom of the storage cavity 23 is prevented from being blocked, and meanwhile, more particles can be driven to enter the circulating groove 315 in the crushing cavity 310, the high-pressure gas in the air bag 62 returns to the original state after flowing out, the check valve 324 is closed, and the high-pressure gas generated from the first compression piece 32 is filled in the air bag 62 again and is continuously bad. By arranging the stirring piece 71, the second compressor 330 is started to generate a flushing air flow, the flushing air flow flows through the second conveying pipe 331 and the plurality of high-pressure nozzles 332 to enter the circulating tank 315, the flushing air flow sprayed out from the high-pressure nozzles 332 is used for blowing the stirring piece 71 to stir the big particles at the outermost layer in a rotating way on one hand, so that the big particles at the outermost layer are impacted on the stirring piece 71 and are smashed into small particles under the stirring of the stirring piece 71, the other hand is used for blowing each particle to rub in the circulating tank 315 in a rotating way, the particles become small, finally, the crushed particles meeting the specification flow into the gas-powder separation tank 41 through the first filter 314 and the first conveying pipe 313, and meanwhile, the friction force between the particles in the circulating tank 315 can be intermittently improved through the strong air flow flowing out of the circulating space 327 and the one-way valve 324, so that the particles are easier to crush, and the crushing rate of the particles is further improved. Through setting up the filter bag, under the separation of the granule in entering gas-powder separation jar 41 in gas-powder separation jar 41, part granule drops in sample collecting vessel 42, part granule flows to the filter bag on upper portion under the drive of air current in, the air current that carries the granule is under the filtration of filter bag, make part granule also drop in sample collecting vessel 42, the air current carries tiny granule to enter into cleaning filter 52, under the filtration of cleaning filter 52, in the atmosphere, the strong pressure air current that flows out in circulation space 327 and the check valve 324 when getting into the filter bag simultaneously can increase the rocking effect of filter bag, make the filter bag be difficult to then quick the jam, and then the live time of extension filter bag. The invention has smart structure, can improve the crushing rate of the particles, can prevent the feed hopper 21 from being blocked, and can prolong the service time of the filter bag through intermittent strong air flow when the particles enter the filter bag.

All possible combinations of the technical features in the above embodiments are described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above embodiments represent only a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. The utility model provides a processing equipment of neodymium iron boron permanent magnet, a serial communication port, including supporting component, feeding subassembly, crushing subassembly, separation subassembly, filter unit, impact module and stirring subassembly, supporting component fixed mounting is subaerial, feeding subassembly, crushing subassembly and separation subassembly are all installed in supporting component's top, feeding subassembly installs in supporting component's top one end, crushing subassembly installs in supporting component's middle part, and crushing subassembly links to each other with feeding subassembly, separation subassembly installs in supporting component's top other end, and separation subassembly links to each other with crushing subassembly, filter unit links to each other with separation subassembly's upper end lateral wall, crushing subassembly includes crushing piece, first compression piece and second compression piece, crushing piece links to each other with feeding subassembly, first compression piece and second compression piece are all installed on supporting component's lateral wall, and first compression piece and second compression piece all link to each other with crushing piece, in the fixed cover of impact module locates in the first compression piece, stirring subassembly rotationally installs in the inside of crushing piece, first compression piece includes first compressor, blast pipe, buffer piece and pan feeding pipe, first compressor installs on supporting component's the lateral wall, and separation subassembly links to each other with crushing piece's upper end and lower end, the fixed ring is located in the fixed ring is located with the fixed air bag of the fixed ring that the fixed air bag of air bag is connected with the fixed end of air bag, and the fixed ring is fixed in the fixed ring that the fixed ring of air bag is connected to the fixed ring of air bag is installed in the fixed ring.

2. The apparatus for processing a neodymium iron boron permanent magnet according to claim 1, wherein the feeding assembly comprises a feeding funnel, a spiral stirrer and a storage cavity, the feeding funnel is mounted at one end of the top of the supporting assembly, the spiral stirrer is mounted at the bottom of the feeding funnel, the bottom of the feeding funnel is communicated with one end of the spiral stirrer at the top, the upper end of the storage cavity is communicated with the other end of the spiral stirrer, and the lower end of the storage cavity is communicated with the middle of the feeding pipe.

3. The apparatus for manufacturing a neodymium iron boron permanent magnet according to claim 2, wherein the buffer member comprises an upper buffer tube and a lower buffer tube, the upper end of the upper buffer tube is connected to the upper end of the feeding tube, the lower end of the upper buffer tube is inserted into the air bag, the upper end of the lower buffer tube is inserted into the air bag, and the lower end of the lower buffer tube is connected to the exhaust tube.

4. The processing apparatus of a neodymium iron boron permanent magnet according to claim 3, wherein the fixing ring is sleeved on the lower end of the upper buffer tube and the upper end of the lower buffer tube, the check valve is mounted on the upper end of the upper buffer tube, and a circulation space is formed between the check valve and the upper buffer tube.

5. The apparatus according to claim 4, wherein the pulverizing member comprises a pulverizing chamber, a recovery pipe, a recovery tub, a first conveying pipe and a first filter, the pulverizing chamber is mounted in the middle of the supporting assembly, the upper end of the recovery pipe is inserted below the pulverizing chamber, the top of the recovery tub is communicated with the lower end of the recovery pipe, the upper end of the first conveying pipe is inserted in the separating assembly, the first filter is fixedly mounted in the pulverizing chamber, the lower end of the first conveying pipe penetrates through the top of the pulverizing chamber, the lower end of the first conveying pipe is connected with the top of the first filter, a circulation groove is formed between the pulverizing chamber and the first filter, the feeding pipe is communicated with the circulation groove, four cutter grooves are formed in the inner wall of the pulverizing chamber, a spring is connected to the end wall of each cutter groove, the other end of the spring is fixedly connected with a cutter, the cutter is slidingly inserted in the cutter grooves, the cutter is abutted against the stirring assembly, and a pushing inclined surface is formed on one side of the cutter adjacent to the stirring assembly.

6. The apparatus according to claim 5, wherein the second compressing member comprises a second compressor, a second delivery pipe and a plurality of high-pressure nozzles, the second compressor is mounted on the side wall of the supporting assembly, the second compressor is located below the first compressor, the lower end of the second delivery pipe is connected with the second compressor, one ends of the plurality of high-pressure nozzles are inserted into the crushing cavity, and the other ends of the plurality of high-pressure nozzles are communicated with the second delivery pipe.

7. The apparatus according to claim 6, wherein the separation assembly comprises a gas-powder separation tank, a sample collection tank and a filter bag, the gas-powder separation tank is mounted at the other end of the top of the support assembly, the sample collection tank is mounted below the gas-powder separation tank, and the filter bag is mounted inside the gas-powder separation tank.

8. The apparatus for manufacturing a neodymium iron boron permanent magnet according to claim 7, wherein the filter assembly comprises a discharge pipe and a cleaning filter, the upper end of the discharge pipe is fixedly connected with the gas-powder separation tank, and the cleaning filter is fixedly connected with the lower end of the discharge pipe.

9. The apparatus for manufacturing a neodymium-iron-boron permanent magnet according to claim 8, wherein the stirring assembly comprises a plurality of stirring members, the stirring members are rotatably installed in the circulation tank, the high-pressure nozzles are inclined toward the stirring members, and a particle passing tank is formed between each stirring member and the inner wall of the crushing chamber.

10. A processing technology of a neodymium-iron-boron permanent magnet, adopting the neodymium-iron-boron permanent magnet processing equipment according to claim 9, comprising the following steps:

step S1: starting neodymium iron boron permanent magnet processing equipment, throwing particles to be crushed from the top of a feeding funnel, stirring and conveying the particles into a storage cavity by a spiral stirrer, enabling the particles to fall on the bottom of the storage cavity, enabling a first compression part to operate to generate high-pressure gas, enabling the high-pressure gas to enter a lower buffer tube of a buffer part through an exhaust pipe, enabling the high-pressure gas to enter an upper buffer tube through an air bag, enabling a part of the high-pressure gas to flow into a feeding pipe through a circulation space, enabling the high-pressure gas to enter a circulation groove in the crushing cavity through the feeding pipe, and enabling the particles on the bottom of the storage cavity to accelerate the falling rate of the particles on the bottom of the storage cavity under the action of negative pressure;

step S2: meanwhile, the particles are driven by high-pressure gas to enter a circulating groove in the crushing cavity, the other part of the high-pressure gas is blocked by a one-way valve and returns to the air bag, the internal pressure of the air bag rises, the air bag expands until the air bag expands to the limit, namely the air bag pushes against a fixed ring, the internal pressure of the air bag is overlarge, the one-way valve is pushed to open, the gas flow in a feeding pipe is enlarged, the feeding pipe drives more particles to enter the circulating groove in the crushing cavity, the high-pressure gas in the air bag flows out and returns to the original state, the one-way valve is closed, and the high-pressure gas generated from the first compression part is filled in the air bag again and is continuously bad;

step S3: the second compressor is started to generate a flushing air flow, the flushing air flow flows through the second conveying pipe and the high-pressure nozzles to enter the circulating tank, the flushing air flow sprayed out of the high-pressure nozzles is used for blowing the stirring piece to rotationally stir the large particles at the outermost layer, and the flushing air flow is used for blowing each particle to rotationally rub in the circulating tank, and finally, the particles meeting the specification after friction and crushing flow into the gas-powder separation tank through the first filter and the first conveying pipe;

step S4: the particles entering the gas-powder separation tank fall into the sample collection barrel under the separation of the gas-powder separation tank, part of the particles flow into the filter bag at the upper part under the driving of the air flow, the air flow carrying the particles is filtered by the filter bag, so that part of the particles also fall into the sample collection barrel, the air flow carries tiny particles into the cleaning filter, and the particles are discharged into the atmosphere under the filtration of the cleaning filter.