CN218423252U

CN218423252U - Internal circulation cooling type jet mill

Info

Publication number: CN218423252U
Application number: CN202222708307.XU
Authority: CN
Inventors: 金夕琸; 宫殿锋; 金美玲; 佟玉明
Original assignee: Shenyang Jinming Fucheng Machinery Manufacturing Co ltd
Current assignee: Shenyang Jinming Fucheng Machinery Manufacturing Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-02-03
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses an inner loop cooling formula air current grinds, including grinding room, cyclone, grinding room upper end intercommunication has the inlet pipe, and grinding room lower extreme is connected nitrogen compressor and is used for admitting air, grinds the room side and connects cyclone, and cyclone gives vent to anger the end and is connected in order to form inner loop nitrogen gas return circuit with the nitrogen compressor inlet end, grinding the outdoor end and setting up the cooling intermediate layer, cooling intermediate layer inlet end is connected with the liquid nitrogen storage tank, the utility model relates to a neodymium iron boron permanent magnetism production facility technical field. This inner loop cooling formula air current grinds, through the setting of vibration anti-blocking mechanism, the striking inlet pipe of being convenient for, and then make the inlet pipe produce the vibration, and then effectively reduce the possibility that the inlet pipe blockked up, blow the setting of mediation mechanism through the intermittent type, be convenient for blow to the inlet pipe in the intermittent type, and then make the inlet pipe produce unstable air current, further improve prevent stifled effect, and only need a servo motor drive can, effectively realize the purpose of practicing thrift the electric energy.

Description

Internal circulation cooling type jet mill

Technical Field

The utility model relates to a neodymium iron boron permanent magnetism production facility technical field specifically is an inner loop cooling formula air current grinds.

Background

The jet mill consists of feeding unit, grinding chamber, gas supply system, cyclone separator and filter. The feeding device sends the neodymium iron boron permanent magnet material into the grinding chamber, the powder materials are mutually collided to realize crushing through strong airflow provided by a nitrogen compressor, the crushed qualified powder materials enter a cyclone separator along with the airflow through a grading wheel to separate qualified powder and surplus gas, the surplus gas enters a filtering device, the filtering device filters and collects the ultrafine powder in the surplus gas, clean gas flows back into the compressor, and the qualified powder materials are collected into a fine powder tank through an outlet of the separator.

According to patent publication No. CN212441535U an inner loop cooling formula jet mill, including grinding the room, cyclone, grinding the room upper end and setting up the feed inlet, grinding the room lower extreme and connecting nitrogen compressor and be used for admitting air, grinding the room side and connecting cyclone, this inner loop cooling formula jet mill utilizes the nitrogen gas cooling of liquid nitrogen cold volume to grinding room and backward flow, the normal pressure of maintenance equipment, guarantee safety in production, but this inner loop cooling formula jet mill's feed inlet is when the feeding, sometimes the pipeline is longer for there is blocking phenomenon in the feed inlet, influence normal feeding, consequently, the utility model provides an inner loop cooling formula jet mill to solve the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an inner loop cooling formula air current grinds has solved the feed inlet when the feeding, and the pipeline is longer sometimes for there is blocking phenomenon in the feed inlet, influences the problem of normal feeding.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an inner loop cooling formula jet mill, is including grinding room, cyclone, grinds room upper end intercommunication and has the inlet pipe, grinds the room lower extreme and connects nitrogen compressor and be used for admitting air, grinds the room side and connects cyclone, and cyclone gives vent to anger the end and is connected in order to form inner loop nitrogen gas return circuit with nitrogen compressor inlet end, it sets up the cooling intermediate layer to grind outdoor end, and cooling intermediate layer inlet end is connected with the liquid nitrogen storage tank, and the cooling intermediate layer is given vent to anger the end and is connected with heat exchanger, heat exchanger sets up on the connecting pipeline between cyclone and nitrogen compressor, the periphery of grinding the room is fixed with the mounting panel, be provided with the vibration that is used for preventing the inlet pipe jam on the mounting panel and prevent stifled mechanism.

Preferably, vibration anti-blocking mechanism is including fixing the riser at the mounting panel top, the place ahead of riser slides and runs through hollow post, the top of mounting panel is fixed with servo motor, servo motor's output shaft one end is fixed with the drive shaft, the fixed surface of drive shaft has the carousel, the top of carousel rotates there is the connecting strip, the connecting strip rotates with hollow post to be connected, the inside of hollow post slides there is the stripper bar, the front end of stripper bar is fixed with the striking piece, the inner wall of hollow post is fixed with the fixed disk, be fixed with between fixed disk and the stripper bar and become the spring, be provided with the intermittent type dredging mechanism that blows air that is used for blowing the mediation to the inlet pipe on the riser.

Preferably, the intermittent air blowing dredging mechanism comprises a piston cylinder fixed at the top of the vertical plate, the surface of the feeding pipe is communicated with a plurality of air flushing pipes, and a transverse cylinder is arranged below the feeding pipe.

Preferably, a plurality of the air flushing pipes are communicated with the surface of the transverse cylinder, and the piston cylinder is communicated with the transverse cylinder through an air outlet hose.

Preferably, a piston slides on the inner wall of the piston cylinder, and the front of the piston is fixed with the surface of the hollow column through a folding rod.

Preferably, an air outlet valve is fixed on the surface of the air outlet hose, the surface of the air outlet hose is communicated with an air inlet hose, and an air inlet valve is fixed on the surface of the air inlet hose.

Advantageous effects

The utility model provides an inner loop cooling formula air current grinds. Compared with the prior art, the method has the following beneficial effects:

this inner loop cooling formula air current grinds, through the setting of vibration anti-blocking mechanism, the striking inlet pipe of being convenient for, and then make the inlet pipe produce the vibration, and then effectively reduce the possibility that the inlet pipe blockked up, blow the setting of mediation mechanism through the intermittent type, be convenient for blow to the inlet pipe in the intermittent type, and then make the inlet pipe produce unstable air current, further improve prevent stifled effect, and only need a servo motor drive can, effectively realize the purpose of practicing thrift the electric energy.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a schematic view of the local structure of the vibration anti-blocking mechanism of the present invention;

fig. 4 is a perspective exploded view of the squeeze bar and the hollow column of the present invention.

In the figure: 1-grinding chamber, 2-cyclone separator, 3-feeding pipe, 4-nitrogen compressor, 5-cooling interlayer, 6-liquid nitrogen storage tank, 7-heat exchanger, 8-mounting plate, 9-vibration anti-blocking mechanism, 91-vertical plate, 92-hollow column, 93-servo motor, 94-driving shaft, 95-rotary table, 96-connecting strip, 97-extrusion rod, 98-impact block, 99-fixed disc, 910-deformation spring, 10-intermittent blowing dredging mechanism, 101-piston cylinder, 102-air-flushing pipe, 103-horizontal cylinder, 104-air-outlet hose, 105-piston, 106-folding rod, 107-air-outlet valve, 108-air-inlet hose and 109-air-inlet valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides two technical solutions: the method specifically comprises the following embodiments:

example 1

The utility model provides an inner loop cooling formula jet mill, including grinding room 1, cyclone 2, it has inlet pipe 3 to grind 1 upper end intercommunication in room, grind 1 lower extreme in room and connect nitrogen compressor 4 and be used for admitting air, grind 1 side in room and connect cyclone 2, cyclone 2 gives vent to anger the end and is connected in order to form inner loop nitrogen gas return circuit with nitrogen compressor 4 inlet end, it sets up cooling intermediate layer 5 to grind 1 outer end in room, cooling intermediate layer 5 inlet end is connected with liquid nitrogen storage tank 6, cooling intermediate layer 5 is given vent to anger the end and is connected with heat exchanger 7, heat exchanger 7 sets up on the connecting pipeline between cyclone 2 and nitrogen compressor 4, the periphery of grinding room 1 is fixed with mounting panel 8, be provided with on the mounting panel 8 and be used for preventing the vibration of 3 clogs up of inlet pipe and prevent stifled mechanism 9.

The vibration anti-blocking mechanism 9 comprises a vertical plate 91 fixed at the top of a mounting plate 8, a hollow column 92 penetrates through the front of the vertical plate 91 in a sliding manner, a servo motor 93 is fixed at the top of the mounting plate 8, the servo motor is electrically connected with an external power supply and is controlled by a control switch, a driving shaft 94 is fixed at one end of an output shaft of the servo motor 93, a rotary disc 95 is fixed on the surface of the driving shaft 94, a connecting strip 96 is rotated at the top of the rotary disc 95, the connecting strip 96 is rotatably connected with the hollow column 92, an extrusion rod 97 slides inside the hollow column 92 and can slide inside the hollow column 92, so that the hollow column 92 can contract during impact, an impact block 98 is fixed at the front end of the extrusion rod 97 and can impact the feeding pipe 3, so that the feeding pipe 3 can vibrate, a fixed disc 99 is fixed on the inner wall of the hollow column 92, a deformation spring 910 is fixed between the fixed disc 99 and the extrusion rod 97, so that the hollow column 92 can quickly reset, and an intermittent air blowing and dredging mechanism 10 for blowing and dredging the feeding pipe 3 is arranged on the vertical plate 91.

The intermittent air blowing dredging mechanism 10 comprises a piston cylinder 101 fixed at the top of a vertical plate 91, wherein the surface of a feeding pipe 3 is communicated with an air flushing pipe 102 and is obliquely arranged, when air is flushed, raw materials inside the feeding pipe 3 can move smoothly, the air flushing pipes 102 are provided with a plurality of air flushing pipes, a transverse cylinder 103 is arranged below the feeding pipe 3, two ends of each air flushing pipe are in a sealing state, the plurality of air flushing pipes 102 are communicated with the surface of the transverse cylinder 103, the piston cylinder 101 is communicated with the transverse cylinder 103 through an air outlet hose 104, a piston 105 slides on the inner wall of the piston cylinder 101, the sealing performance of the contact part of the piston cylinder 101 is good, no air leakage phenomenon exists, the front part of the piston 105 is fixed with the surface of the hollow column 92 through a folding rod 106, an air outlet valve 107 is fixed on the surface of the air outlet hose 104 and is a one-way valve and can only give air, the surface of the air outlet hose 104 is communicated with an air inlet hose 108, and an air inlet valve 109 is fixed on the surface of the air inlet hose 108 and can only give air.

Example 2

And those not described in detail in this specification are well within the skill of those in the art.

During operation, in the feeding process of the feeding pipe 3, the servo motor 93 can be started, the driving disc 95 is driven to rotate by the driving shaft 94, and then the hollow column 92 is pulled to slide back and forth on the vertical plate 91 by the connecting strip 96, so that the impact block 98 can continuously impact the feeding pipe 3, the impact block 98 is quickly contracted into the hollow column 92 after impact, so that the feeding pipe 3 can vibrate, and further the material blockage is effectively prevented, meanwhile, the hollow column 92 can drive the piston 105 to slide back and forth in the piston cylinder 101 through the folding rod 106, when the piston 105 slides back in the piston cylinder 101, the air in the piston cylinder 101 can enter the transverse cylinder 103 through the air outlet valve 107 and the air outlet hose 104 and enter the feeding pipe 3 through the air inlet pipe 102, so that unstable air flow is generated in the feeding pipe 3, and therefore, the blockage is effectively prevented, when the piston 105 slides forward in the piston cylinder 101, the external air enters the piston cylinder 101 again through the air inlet hose 108 and the air inlet valve 109, and then the reciprocating operation is repeated.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an inner loop cooling formula jet mill, includes grinding room (1), cyclone (2), and grinding room (1) upper end intercommunication has inlet pipe (3), and grinding room (1) lower extreme is connected nitrogen compressor (4) and is used for admitting air, grinds room (1) side and connects cyclone (2), and cyclone (2) are given vent to anger the end and are connected in order to form inner loop nitrogen gas return circuit with nitrogen compressor (4) inlet end, grinding room (1) outer end sets up cooling intermediate layer (5), and cooling intermediate layer (5) inlet end is connected with liquid nitrogen storage tank (6), and cooling intermediate layer (5) are given vent to anger the end and are connected with heat exchanger (7), heat exchanger (7) set up on the connecting pipeline between cyclone (2) and nitrogen compressor (4), its characterized in that: the periphery of grinding room (1) is fixed with mounting panel (8), be provided with on mounting panel (8) and be used for preventing the vibration of inlet pipe (3) jam and prevent stifled mechanism (9).

2. The internal circulation cooling type jet mill according to claim 1, wherein: the vibration anti-blocking mechanism (9) comprises a vertical plate (91) fixed to the top of a mounting plate (8), a hollow column (92) penetrates through the front of the vertical plate (91) in a sliding mode, a servo motor (93) is fixed to the top of the mounting plate (8), a driving shaft (94) is fixed to one end of an output shaft of the servo motor (93), a rotary disc (95) is fixed to the surface of the driving shaft (94), a connecting strip (96) is rotated to the top of the rotary disc (95), the connecting strip (96) is rotatably connected with the hollow column (92), an extrusion rod (97) slides inside the hollow column (92), an impact block (98) is fixed to the front end of the extrusion rod (97), a fixed disc (99) is fixed to the inner wall of the hollow column (92), a variable spring (910) is fixed between the fixed disc (99) and the extrusion rod (97), and an intermittent air blowing and dredging mechanism (10) used for blowing and dredging of a feeding pipe (3) is arranged on the vertical plate (91).

3. The internal circulation cooling type jet mill according to claim 2, wherein: the intermittent air blowing dredging mechanism (10) comprises a piston cylinder (101) fixed to the top of a vertical plate (91), the surface of the feeding pipe (3) is communicated with a plurality of air flushing pipes (102), and a transverse cylinder (103) is arranged below the feeding pipe (3).

4. The internal circulation cooling type jet mill according to claim 3, wherein: the plurality of air flushing pipes (102) are communicated with the surface of the transverse cylinder (103), and the piston cylinder (101) is communicated with the transverse cylinder (103) through an air outlet hose (104).

5. The internal circulation cooling type jet mill according to claim 4, wherein: the piston (105) slides on the inner wall of the piston cylinder (101), and the front of the piston (105) is fixed with the surface of the hollow column (92) through a folding rod (106).

6. The internal circulation cooling type jet mill according to claim 4, wherein: the surface of the air outlet hose (104) is fixed with an air outlet valve (107), the surface of the air outlet hose (104) is communicated with an air inlet hose (108), and the surface of the air inlet hose (108) is fixed with an air inlet valve (109).