CN104923795B - A kind of magnetic material flouring technology - Google Patents
A kind of magnetic material flouring technology Download PDFInfo
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- CN104923795B CN104923795B CN201510336540.1A CN201510336540A CN104923795B CN 104923795 B CN104923795 B CN 104923795B CN 201510336540 A CN201510336540 A CN 201510336540A CN 104923795 B CN104923795 B CN 104923795B
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Abstract
A kind of magnetic material flouring technology and its magnetic grader, for manufacturing the magnetic that granularity of magnet powder distribution is concentrated, air-flow be milled into magnetic powder material uniformly sent into mixing chamber by hopper and batcher to be well mixed with the recyclegas in system, and enter with the wind in magnetic grader, obtain thick magnetic and primary mixture, thick magnetic is sent back to airflow milling to reface, primary mixture is sent into separator, obtain thin magnetic and gas containing powder, it will contain in powder gas feeding filter, cold wind is made by roots blower water cooled device cooling of pressurizeing in hot blast after filtering, cold wind feeding mixing chamber is entered into next circulation, described thin magnetic is obtained finished product；Magnetic grader therein has tank body, fine powder discharge pipe is provided with the top of tank body, tank body lower part is provided with feed pipe and secondary air inlet, tank base is provided with the coarse powder discharge pipe of the double dish valves of band, tank is built with separation wheel and skirt-type elutriator, tank body be fitted with separation wheel power connector motor, the bottom of tank body is tilted conical.
Description
Technical field
The present invention provides a kind of magnetic material flouring technology and its magnetic grader, belongs to magnetic material manufacture field.
Background technology
Magnetic material is ground into airflow milling 3~5 microns of metal dust, from theory in the production process of magnetic material
For angle, powder size is more concentrated, higher, the conventional magnetic material flouring technology of the repressed material final performance sintered out
In, the magnetic after airflow milling powder is sent directly into next procedure, is limited by airflow milling self structure, using only airflow milling point
The effect for selecting machine to be classified magnetic is undesirable, and the granularity of magnet powder distribution of sorting is inadequate to concentrate.
The content of the invention
It is an object of the invention to provide a kind of magnetic material flouring technology and its magnetic grader, magnetic can be made using this method
Size distribution after property material powder is more concentrated, so as to improve the performance of magnetic material.
The technical scheme is that：A kind of magnetic material flouring technology, it is characterised in that with following processing step：
Magnetic material raw material is milled into magnetic powder material by air-flow, and magnetic powder feeding hopper is equably sent into mixing chamber by batcher again
The interior recyclegas with system is well mixed, and is entered with the wind in magnetic grader, and obtaining the gentle powder of thick magnetic through classification mixes
Compound, thick magnetic is discharged from grader to be sent back to airflow milling and grinds next step into system again, and primary mixture is from classification
Machine is discharged into separator, is isolated to thin magnetic and gas containing powder, and thin magnetic is discharged to thin magnetic collecting tank for finished product, contained
In powder gas feeding filter, obtain super-fine magnetic powder and hot blast after filtering, super-fine magnetic powder is discharged to super-fine magnetic powder collecting tank, hot blast by
The water cooled device cooling of roots blower pressurization becomes cold wind, and cold wind feeding mixing chamber is entered into next circulation.
A kind of magnetic grader for magnetic material flouring technology, with tank body, the top of tank body is discharged provided with fine powder
Pipe, the bottom of tank body is provided with feed pipe and secondary air inlet, and the bottom of tank body is provided with the coarse powder discharge pipe of the double dish valves of band, tank body
Equipped with separation wheel, separation wheel is relative with the import of fine powder discharge pipe, and separation wheel bottom is provided with wheel cap, and tank body is built with skirt-type elutriation
Wealthy mouth at the top of device, elutriator is relative with separation wheel, and edge and the tank body of the wealthy mouth are connected, and the outlet of feed pipe is located at elutriator
Interior, tank body is fitted with motor, motor and separation wheel power connector, and the bottom of tank body is tilted conical.
It is an advantage of the invention that：Magnetic powder is well mixed in mixing chamber with gases at high pressure made from airflow milling enters magnetic
First it is classified in powder grader, underproof thick magnetic is sent airflow milling back to after being collected and ground again, qualified thin magnetic
Feeding separator isolates super-fine magnetic powder in qualified finished product and gas containing powder (containing super-fine magnetic powder), gas containing powder by filtering
Device is caught, and by the circulation step in technique, the finished product of powder concentration can be finally obtained, so as to effectively raise magnetic material
Performance；Magnetic grader can accurately be screened by elutriator and separation wheel to the magnetic powder of feeding in the present invention, slightly
Cone wall of the magnetic along tank body tilted conical bottom is deposited in the bottom at tilted conical bottom, and two valves alternately opened on double dish valves can facilitate
Thick magnetic in ground recycling can, it is ensured that flouring technology is carried out continuously, wheel cap on separation wheel can stop what is sprayed from feed pipe
Thick magnetic enters separation wheel by inertia, and the thin magnetic in gas and super-fine magnetic powder are sent into fine powder discharge pipe and be sent to rotation by separation wheel
Wind separator；The secondary wind energy of secondary air inlet feeding carries out secondary point to the thin magnetic and super-fine magnetic powder in the thick magnetic that falls
Choosing, makes thin magnetic therein and super-fine magnetic powder be blown afloat sorted wheel again and enters fine powder discharge pipe, make thin magnetic in thick magnetic
Further reduced with the content of super-fine magnetic powder, make classification more accurate；It is secondary in magnetic grader by adjusting this technology structure
The air quantity of wind, so as to accurately control the granularity of magnet powder to be sorted, obtains the magnetic that size distribution is more concentrated.
Brief description of the drawings
Fig. 1 is a kind of process flow diagram of magnetic material flouring technology of the invention；
Fig. 2 is the structural representation of magnetic grader in the present invention；
Fig. 3 is a kind of process equipment attachment structure schematic diagram of magnetic material flouring technology of the invention.
1 motor, 2 fine powder discharge pipes, 3 separation wheels, 4 elutriators, 5 tank bodies, 6 tilted conical bottoms, 7 feed pipes, 8 pairs of dish in figure
Valve, 9 coarse powder discharge pipes, 10 secondary air inlets, 11 wheel caps, 12 airflow millings, 13 hoppers, 14 system air supply lines, the classification of 15 magnetics
Machine, 16 cyclone separators, 17 filters, 18 roots blowers, 19 super-fine magnetic powder collecting tanks, 20 water coolers, 21 thin magnetic collecting tanks,
22 mixing chambers, 23 thick magnetic collecting tanks, 24 batchers, 25 turnover batch cans.
Embodiment
A kind of magnetic material flouring technology, with following processing step, magnetic is made by airflow milling 12 in magnetic material raw material
Powder, magnetic powder feeding hopper 13 is equably sent into by batcher 24 in mixing chamber 22 again and mixed with the recyclegas in system
Close uniform, and enter with the wind in magnetic grader 15, obtain thick magnetic and primary mixture, send thick magnetic back to airflow milling again
Grind into this circulatory system, primary mixture is sent into separator 16, thin magnetic and gas containing powder is obtained, powder gas will be contained
Send into filter 17, the hot blast after filter, cold wind is made by water cooled device 20 cooling of pressurizeing of roots blower 18 in hot blast, general
Cold wind feeding mixing chamber enters next circulation, and described thin magnetic is obtained finished product.
The processing route for the thin magnetic that airflow milling is made is：Airflow milling → hopper → batcher → mixing chamber → magnetic classification
Machine → separator → thin magnetic collecting tank 21；The circulating path for the thick magnetic that airflow milling is made is：Airflow milling → hopper → feed
Machine → mixing chamber → magnetic grader → thick magnetic 23 → airflow milling of collecting tank；The processing route for the super-fine magnetic powder that airflow milling is made
For：Airflow milling → hopper → batcher → mixing chamber → magnetic grader → separator → filter → super-fine magnetic powder collecting tank
19；The path of recyclegas is：Mixing chamber → magnetic grader → separator → filter → roots blower → water cooler → mixed
Expect room；
The equipment being related in this technique includes：Airflow milling, hopper, batcher, mixing chamber, magnetic grader, cyclonic separation
Device, filter, roots blower, water cooler, system air supply line, thick magnetic collecting tank, thin magnetic collecting tank, super-fine magnetic powder are collected
Tank, turnover batch can 25, the discharging opening of airflow milling are relative with the collection port for having enough to meet the need batch can, the turnover discharging opening of batch can and entering for hopper
Material mouth is relative, and the discharging opening of hopper and the inlet communication of batcher, the discharging opening of batcher are connected with the charging aperture of mixing chamber, mixes
The outlet of material room is connected with the feed pipe 7 of magnetic grader, the coarse powder discharge pipe and thick magnetic collecting tank of magnetic classification motor spindle
Collection port it is relative, the fine powder discharge pipe at the top of magnetic grader is connected with the charging aperture of cyclone separator, cyclone separator bottom
The discharging opening in portion is relative with the collection port of thin magnetic collecting tank, and the air outlet of cyclone separator is connected with the air inlet of filter,
The discharging opening of filter bottom is relative with the collection port of super-fine magnetic powder collecting tank, the air outlet of filter and the air inducing of roots blower
Mouth connection, the air outlet of roots blower is connected with the hot wind inlet of water cooler, the cold wind outlet of water cooler and the air intake of mixing chamber
Mouth connection；Described airflow milling is colliding-type air-flow mill, and described batcher is spiral batcher；Described water cooler is wing
Chip water cooler；Described magnetic grader has tank body 5, and the top of tank body is provided with fine powder discharge pipe 2, and the bottom of tank body is provided with
Feed pipe 7 and secondary air inlet 10, secondary air inlet are connected with the air outlet or system air supply line 14 of roots blower, tank body
Bottom is provided with the coarse powder discharge pipe 9 of the double dish valves 8 of band, and tank body is built with separation wheel 3, the import phase of separation wheel and fine powder discharge pipe
Right, separation wheel bottom is provided with wheel cap 11, and tank body is built with skirt-type elutriator 4, and the wealthy mouth at the top of elutriator is relative with separation wheel, this
The edge of wealthy mouth is connected with tank body, and the outlet of feed pipe is located in elutriator, and tank body is fitted with motor 1, motor and separation wheel
Power connector, the bottom of tank body is tilted conical 6.
In the present invention, the raw material of magnetic material is milled into magnetic powder material by air-flow, is added magnetic powder by having enough to meet the need batch can
Material bin is equably sent into mixing chamber by batcher and is well mixed with recyclegas, is re-fed into magnetic grader, magnetic powder
Material is divided into thick magnetic and thin magnetic in grader, and thick magnetic is discharged to thick magnetic via classification motor spindle coarse powder discharge pipe and received
Collection tank sends airflow milling back to and grinds (or the mill interior of airflow milling is directly sent back to by expects pipe) again again, and thin magnetic is by recyclegas
It is carried in cyclone separator, gas solid separation obtains thin magnetic, recyclegas carries a small amount of superfines and entered in filter, warp
Superfine powder is discharged by the discharging opening of filter bottom after filtering, after recyclegas pressurizes through roots blower again, water cooled device cooling,
Cold wind is sent into mixing chamber and carries out next circulation, wherein cyclone separator it is separated go out thin magnetic be it is obtained into
Product.
Claims (1)
1. a kind of magnetic material flouring technology, it is characterised in that with following processing step：Magnetic material raw material is ground by air-flow
Into magnetic powder, magnetic powder feeding hopper is equably sent into by batcher in mixing chamber again and mixed with the recyclegas in system
Close uniform, and enter with the wind in magnetic grader, thick magnetic and primary mixture are obtained through classification, thick magnetic is discharged from grader
Send back to airflow milling and grind the next step for entering system again, primary mixture is discharged into separator from grader, through dividing
From thin magnetic and gas containing powder is obtained, thin magnetic is discharged to thin magnetic collecting tank for finished product, in the feeding filter of gas containing powder, filtering
After obtain super-fine magnetic powder and hot blast, super-fine magnetic powder is discharged to super-fine magnetic powder collecting tank, and hot blast is cold by the roots blower water cooled device that pressurizes
But become cold wind, cold wind feeding mixing chamber is entered into next circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510336540.1A CN104923795B (en) | 2015-06-17 | 2015-06-17 | A kind of magnetic material flouring technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510336540.1A CN104923795B (en) | 2015-06-17 | 2015-06-17 | A kind of magnetic material flouring technology |
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| Publication Number | Publication Date |
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| CN104923795A CN104923795A (en) | 2015-09-23 |
| CN104923795B true CN104923795B (en) | 2017-09-05 |
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| CN201510336540.1A Active CN104923795B (en) | 2015-06-17 | 2015-06-17 | A kind of magnetic material flouring technology |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105396672A (en) * | 2015-12-01 | 2016-03-16 | 中磁科技股份有限公司 | Air-flow mill |
| CN105964376A (en) * | 2016-05-20 | 2016-09-28 | 江苏普隆磁电有限公司 | Device for manufacturing magnetic powder particles |
| CN114558691A (en) * | 2022-02-28 | 2022-05-31 | 安徽省瀚海新材料股份有限公司 | Jet mill device for processing powder material and processing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443606A (en) * | 2003-04-18 | 2003-09-24 | 宁波韵升（集团）股份有限公司 | Preumatic mill |
| CN201644396U (en) * | 2010-01-08 | 2010-11-24 | 潍坊学院 | Superfine powder grader |
| CN202410809U (en) * | 2011-11-28 | 2012-09-05 | 河南省康星药业有限公司 | Superfine powder screening linkage system |
| CN203695426U (en) * | 2014-01-07 | 2014-07-09 | 咸阳非金属矿研究设计院有限公司 | Ultrafine powder airflow classifier |
| CN204769032U (en) * | 2015-06-17 | 2015-11-18 | 吉林市凯尔维特机电设备有限责任公司 | Magnetic grader |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5768322B2 (en) * | 2010-03-19 | 2015-08-26 | 住友金属鉱山株式会社 | Nickel fine powder and method for producing the same |
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- 2015-06-17 CN CN201510336540.1A patent/CN104923795B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443606A (en) * | 2003-04-18 | 2003-09-24 | 宁波韵升（集团）股份有限公司 | Preumatic mill |
| CN201644396U (en) * | 2010-01-08 | 2010-11-24 | 潍坊学院 | Superfine powder grader |
| CN202410809U (en) * | 2011-11-28 | 2012-09-05 | 河南省康星药业有限公司 | Superfine powder screening linkage system |
| CN203695426U (en) * | 2014-01-07 | 2014-07-09 | 咸阳非金属矿研究设计院有限公司 | Ultrafine powder airflow classifier |
| CN204769032U (en) * | 2015-06-17 | 2015-11-18 | 吉林市凯尔维特机电设备有限责任公司 | Magnetic grader |
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| CN104923795A (en) | 2015-09-23 |
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