CN102795862A - Device and method for preparing permanent magnet ferrite presintering material by dry process - Google Patents
Device and method for preparing permanent magnet ferrite presintering material by dry process Download PDFInfo
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- CN102795862A CN102795862A CN2012103352893A CN201210335289A CN102795862A CN 102795862 A CN102795862 A CN 102795862A CN 2012103352893 A CN2012103352893 A CN 2012103352893A CN 201210335289 A CN201210335289 A CN 201210335289A CN 102795862 A CN102795862 A CN 102795862A
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Abstract
The invention belongs to the technical field of manufacturing of a magnetic material, and particularly relates to a device and method for preparing a permanent magnet ferrite presintering material by a dry process. The device comprises a drying machine, a cleaning machine, a cooling cylinder, a dry magnetic separator, a ferrophosphorus storage bin, a ball mill, an air compressor, a forced mixer, a compactor, an additive storage bin, a pelletizer, a chain grate, a rotary kiln, a cooling system and a grading machine. The grading machine is used for quickly grading, thereby shortening the ball milling time and greatly saving the energy consumption. The raw materials of the permanent magnet ferrite presintering material have small particle size distribution and are evenly mixed; and the product has the advantages of high grade, stable quality, large production-line batch, high production efficiency and low labor intensity.
Description
Technical field
The invention belongs to the magneticsubstance manufacture technology field, be specifically related to a kind of apparatus and method of dried preparation permanent ferrite prefiring material.
Background technology
At present the process step of production dried preparation permanent ferrite prefiring material is following: mixed～fine and close ball milling of raw material (iron phosphorus)～oven dry～ball milling～batching～by force～make ball～chain-grate machine pre-burning～rotary kiln sintered～cooling～fine grinding.There is following shortcoming in traditional method:
1, the production line ball mill carry out ball milling can not continuous production when producing, can only carry out discontinuous and produce in batches, grind in the production process and meet the requirements of powder discharging in time, motion repeatedly causes a large amount of power consumptions in grinding machine, energy consumption is wasted.
2, the time of abrasive material longer, production efficiency is lower.Influence the production efficiency of whole production line.
3, the iron phosphorus powder material granularity lack of homogeneity that grinds has a strong impact on the chemical reaction degree of the additive of Strontium carbonate powder, and then influences the stability of magneticsubstance end properties and performance.
4, the inhomogeneous product specification that causes of batch mixing is low, and quality is unstable, and is of poor benefits.
Summary of the invention
The object of the invention is exactly the apparatus and method that a kind of dried preparation permanent ferrite prefiring material is provided to the defective of above-mentioned existence; The permanent ferrite prefiring material raw material granularity of producing distributes little; Mix, product specification is high, steady quality; The product line is big in batches, production efficiency is high, and labour intensity is low.
The method and technology scheme of a kind of dried preparation permanent ferrite prefiring material of the present invention is its technical process: raw material (iron phosphorus) cleaning → oven dry → ball milling → classification → batching (iron phosphorus, iron oxide red, Strontium carbonate powder, additive) → strong mixing → feed → make ball → travelling belt → chain-grate machine pre-burning → rotary kiln to fire → water-cooling system cooling → ball mill ball milling ball → classification → check warehouse-in.
The device of a kind of dried preparation permanent ferrite prefiring material of the present invention comprises dryer, cleaning machine, cooling cylinder, dry-type magnetic extractor; Iron phosphorus feed bin, ball mill, air compressor machine mixes machine by force; Pre-pressing machine, additive storage bin, pelletizer, chain-grate machine; Rotary kiln, cooling system is characterized in that, ball mill comprises the ball mill I of pulverizing iron scale and the ball mill II of pulverizing permanent ferrite prefiring material; Also comprise grading machine, the ball mill I of pulverizing iron scale links to each other with the grading machine II with the grading machine I respectively with the ball mill II of pulverizing permanent ferrite prefiring material, can pass through the grading machine rapid classification, has not only reduced the ball milling time but also has practiced thrift energy consumption greatly.Armamentarium is all connected by pipeline becomes a tightness system.
The device of dried preparation permanent ferrite prefiring material comprises dryer, cleaning machine, cooling cylinder, dry-type magnetic extractor, iron phosphorus feed bin I; Blending bunker, the ball mill I of pulverizing iron scale, the grading machine I, air compressor machine, iron phosphorus feed bin II is mixed machine by force; Pre-pressing machine, automatic material weighing machine, additive storage bin, pelletizer, chain-grate machine, rotary kiln; Cooling system, collection device, the ball mill II of pulverizing permanent ferrite prefiring material, grading machine II, package test machine; Dry-type magnetic extractor is linked by pipeline with the ball mill I opening for feed of pulverizing iron scale, and the ball mill I discharge port of pulverizing iron scale is connected with grading machine I underfeed mouth, grading machine I discharge port is that seal for pipe joints connects with strong mixed machine; The ball mill II discharge port of pulverizing permanent ferrite prefiring material is connected with grading machine II underfeed mouth; Armamentarium is all connected by pipeline becomes a tightness system.
The method of dried preparation permanent ferrite prefiring material may further comprise the steps: iron phosphorus at first through cleaning machine cleaning, drying machine drying, then after cooling cylinder cooling, dry-type magnetic extractor magnetic separation, get into the ball mill I through the feed bin I and grind; Grind the back and get into the classification of grading machine I; Qualified powder gets into the strong machine that mixes after by the weighing of feed bin II automatic material weighing machine and mixes by force, and the underproof ball mill grinding that gets into again, Strontium carbonate powder, iron oxide red, additive press technical recipe batching back and got into that strong to mix machine mixed by force; The thick back material powder that mixes is sent into the densification of pre-pressing machine ball milling by transport pipe; Raw material after the densification gets into the pelletizer balling-up, carries out the pre-burning of rotary kiln dry method after getting into chain-grate machine preoxidation after the balling-up, the pre-burning material through cooling system be cooled to≤80 ℃ after; The ball material gets into the ball mill II by collection device and grinds; Grind the back and get into the classification of grading machine II, qualified powder is through package test machine warehouse-in, and the underproof ball mill II that gets into is again ground.
Additive is the one or more combination in kaolin, lime carbonate and the rare earth compound.
Beneficial effect of the present invention is: method of the present invention provides production technique and the device that precision is higher in a kind of successive, the products production, energy consumption is lower.The apparatus features of dried preparation permanent ferrite prefiring material of the present invention is except being made up of ball milling unit, blending bunker; The device of dried preparation permanent ferrite prefiring material; The ball mill I of pulverizing iron scale all links to each other with grading machine with the ball mill II of pulverizing permanent ferrite prefiring material; Can not only reduce the ball milling time but also practice thrift energy consumption greatly through the grading machine rapid classification.
The classification unit is installed in the present invention additional; Powder after ball mill grinds utilizes grading machine to carry out the thickness granularity Detection and separates, and qualified raw material is delivered to blending bunker with air-flow and stirred, and underproof continuation adjustment is also ground; Circulation is repeatedly sent into the blending bunker batch mixing to granularity, moisture etc. after qualified again.Save the abrasive material time greatly, reduced energy consumption; Iron scale powder homogeneity, consistence have been increased substantially; Big in batches, efficient is high, remarkable in economical benefits.
Description of drawings:
Shown in Figure 1 is dried preparation permanent ferrite prefiring material device synoptic diagram of the present invention.
Among Fig. 1,1-dryer, 2-cleaning machine, 3-cooling cylinder, 4-dry-type magnetic extractor, 5-iron phosphorus feed bin I, 6-transport pipe; The 7-blending bunker, 8-ball mill I, 9-grading machine I, the 10-air compressor machine, 11-iron phosphorus feed bin II, 12-mixes machine by force; The 13-pre-pressing machine, 14-airflow pipeline, 15-automatic material weighing machine, 16-additive storage bin, 17-pelletizer, 18-chain-grate machine; The 19-rotary kiln, 20-cooling system, 21-collection device, 22-ball mill II, 23-grading machine II, 24-package test machine.
Embodiment:
In order to understand the present invention better, specify technical scheme of the present invention with specific examples below, but the present invention is not limited thereto.
Embodiment 1
Ask for an interview Figure of description 1, iron phosphorus at first through cleaning machine 2 clean, dryer 1 oven dry, then after cooling cylinder 3 coolings, dry-type magnetic extractor 4 magnetic separation, send into iron phosphorus feed bin I 5 through transport pipe 6; Get into blending bunker 7 from iron phosphorus feed bin through transport pipe 6; Get into the ball mill I 8 of pulverizing iron scale from blending bunker 7 through transport pipe 6 and grind, grind the back and get into 9 classifications of grading machine I, qualified powder is sent into iron phosphorus feed bin II 11 by airflow pipeline 14; Additive is put into additive storage bin III 16 in advance; Iron phosphorus, additive get into after through 15 weighings of automatic material weighing machine and mix machine ball mill the last 12 and mix by force, and the underproof ball mill 8 that gets into again grinds, and Strontium carbonate powder, iron oxide red, additive (one or more combination in kaolin, lime carbonate and the rare earth compound) press technical recipe batching back and got into that strong to mix machine the last 12 mixed; The thick back material powder that mixes is sent into the densification of pre-pressing machine 13 ball millings according to actual field situation; Raw material after the densification gets into pelletizer 17 balling-up, carries out rotary kiln 19 dry method pre-burnings after getting into chain-grate machine 18 preoxidation after the balling-up, the pre-burning material through cooling system 20 be cooled to≤80 ℃ after; The ball material gets into the ball mill II 22 of pulverizing permanent ferrite prefiring material by collection device 21 and grinds; Grind the back and get into 23 classifications of grading machine II, qualified powder is through package test machine 24 warehouse-ins, and the underproof ball mill II 22 of pulverizing permanent ferrite prefiring material that gets into is again ground; Grind the back and get into 23 classifications of grading machine II, qualified powder is through package test machine 24 warehouse-ins.
Claims (4)
1. the device of a dried preparation permanent ferrite prefiring material comprises dryer, cleaning machine, cooling cylinder; Dry-type magnetic extractor, iron phosphorus feed bin, ball mill, air compressor machine; Strong machine, pre-pressing machine, additive storage bin, the pelletizer of mixing; Chain-grate machine, rotary kiln, cooling system is characterized in that; Ball mill comprises the ball mill I of pulverizing iron scale and the ball mill II of pulverizing permanent ferrite prefiring material, also comprises grading machine, pulverizes the ball mill I of iron scale and the ball mill II of pulverizing permanent ferrite prefiring material and links to each other with the grading machine II with the grading machine I respectively, and armamentarium is all connected by pipeline becomes a tightness system.
2. according to the device of the said dried preparation permanent ferrite prefiring material of claim 1, it is characterized in that, comprise dryer, cleaning machine, cooling cylinder, dry-type magnetic extractor; Iron phosphorus feed bin I, blending bunker, the ball mill I of pulverizing iron scale, grading machine I, air compressor machine, iron phosphorus feed bin II; Strong machine, pre-pressing machine, automatic material weighing machine, additive storage bin, pelletizer, the chain-grate machine of mixing; Rotary kiln, cooling system, collection device, the ball mill II of pulverizing permanent ferrite prefiring material, grading machine II, package test machine; Dry-type magnetic extractor is linked by pipeline with the ball mill I opening for feed of pulverizing iron scale, and the ball mill I discharge port of pulverizing iron scale is connected with grading machine I underfeed mouth, grading machine I discharge port is that seal for pipe joints connects with strong mixed machine; The ball mill II discharge port of pulverizing permanent ferrite prefiring material is connected with grading machine II underfeed mouth; Armamentarium is all connected by pipeline becomes a tightness system.
3. use the method for claim 1 or 2 arbitrary said device dried preparation permanent ferrite prefiring materials, it is characterized in that, may further comprise the steps: iron phosphorus at first through cleaning machine cleaning, drying machine drying, then after cooling cylinder cooling, dry-type magnetic extractor magnetic separation; Get into the ball mill I through the feed bin I and grind, grind the back and get into the classification of grading machine I, qualified powder gets into the strong machine that mixes after by the weighing of feed bin II automatic material weighing machine and mixes by force; The underproof ball mill grinding that gets into again; Strontium carbonate powder, iron oxide red, additive are pressed the strong machine that mixes of technical recipe batching back entering and are mixed by force, and it is fine and close that thick mixed back material powder is sent into the pre-pressing machine ball milling by transport pipe, and the raw material after the densification gets into the pelletizer balling-up; Carry out the pre-burning of rotary kiln dry method after getting into chain-grate machine preoxidation after the balling-up; The pre-burning material through cooling system be cooled to≤80 ℃ after, the ball material gets into the ball mill II by collection device and grinds, and grinds the back and gets into the classification of grading machine II; Qualified powder is through package test machine warehouse-in, and the underproof ball mill II that gets into is again ground.
4. according to the method for the said dried preparation permanent ferrite prefiring material of claim 3, it is characterized in that additive is the one or more combination in kaolin, lime carbonate and the rare earth compound.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316755A (en) * | 2013-07-16 | 2013-09-25 | 罗德明 | One-piece magnetic reduction preparation equipment and its process flow |
| CN104391085A (en) * | 2014-11-26 | 2015-03-04 | 攀枝花钢城集团有限公司 | Dry-process pre-sintering sampling inspection method |
| CN105173144A (en) * | 2015-09-28 | 2015-12-23 | 攀枝花钢城集团有限公司 | Simple packaging system and method capable of conducting switching of large and small packets of pre-sintered ferrites |
| CN108863335A (en) * | 2018-07-17 | 2018-11-23 | 横店集团东磁股份有限公司 | A kind of production method of permanent-magnet ferrite |
| CN108911761A (en) * | 2018-07-09 | 2018-11-30 | 横店集团东磁股份有限公司 | A kind of preparation method of dry-pressing isotropic ferrite powder |
| CN109336579A (en) * | 2018-11-14 | 2019-02-15 | 横店集团东磁股份有限公司 | A kind of motor Ferrite Material and preparation method thereof |
| CN111825121A (en) * | 2020-06-08 | 2020-10-27 | 横店集团东磁股份有限公司 | Ferrite rubber-plastic magnetic powder and preparation method thereof |
| CN112071615A (en) * | 2020-08-19 | 2020-12-11 | 安徽金安矿业有限公司 | Preparation method for improving magnetic property of strontium ferrite pre-sintered material |
| CN112525982A (en) * | 2020-12-23 | 2021-03-19 | 湖南航天磁电有限责任公司 | Detection method of permanent magnetic ferrite pre-sintered material |
| CN112742546A (en) * | 2019-10-31 | 2021-05-04 | 江门江益磁材有限公司 | Continuous through type dry sand mill for ferrite |
| CN112919878A (en) * | 2020-12-29 | 2021-06-08 | 南京泰瑞新材料科技有限公司 | Magnetic powder preparation process and automatic control system thereof |
| CN113165985A (en) * | 2018-10-15 | 2021-07-23 | 维科Ip控股有限公司 | Method for preparing ceramic particle mixture |
| CN113503736A (en) * | 2021-07-01 | 2021-10-15 | 南京溧水金洪磁性元件有限公司 | Production method and device of permanent magnetic ferrite for low-noise permanent magnet motor |
| CN115894003A (en) * | 2022-12-20 | 2023-04-04 | 矿冶科技集团有限公司 | Pelletizing method and application of pre-sintered material for permanent magnetic ferrite |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316755A (en) * | 2013-07-16 | 2013-09-25 | 罗德明 | One-piece magnetic reduction preparation equipment and its process flow |
| CN104391085A (en) * | 2014-11-26 | 2015-03-04 | 攀枝花钢城集团有限公司 | Dry-process pre-sintering sampling inspection method |
| CN105173144A (en) * | 2015-09-28 | 2015-12-23 | 攀枝花钢城集团有限公司 | Simple packaging system and method capable of conducting switching of large and small packets of pre-sintered ferrites |
| CN105173144B (en) * | 2015-09-28 | 2018-02-23 | 攀枝花钢城集团有限公司 | The simple packaging system and method for big parcel switching can be carried out to ferrite prefiring material |
| CN108911761A (en) * | 2018-07-09 | 2018-11-30 | 横店集团东磁股份有限公司 | A kind of preparation method of dry-pressing isotropic ferrite powder |
| CN108863335A (en) * | 2018-07-17 | 2018-11-23 | 横店集团东磁股份有限公司 | A kind of production method of permanent-magnet ferrite |
| CN113165985A (en) * | 2018-10-15 | 2021-07-23 | 维科Ip控股有限公司 | Method for preparing ceramic particle mixture |
| CN109336579A (en) * | 2018-11-14 | 2019-02-15 | 横店集团东磁股份有限公司 | A kind of motor Ferrite Material and preparation method thereof |
| CN112742546A (en) * | 2019-10-31 | 2021-05-04 | 江门江益磁材有限公司 | Continuous through type dry sand mill for ferrite |
| CN111825121A (en) * | 2020-06-08 | 2020-10-27 | 横店集团东磁股份有限公司 | Ferrite rubber-plastic magnetic powder and preparation method thereof |
| CN112071615A (en) * | 2020-08-19 | 2020-12-11 | 安徽金安矿业有限公司 | Preparation method for improving magnetic property of strontium ferrite pre-sintered material |
| CN112525982A (en) * | 2020-12-23 | 2021-03-19 | 湖南航天磁电有限责任公司 | Detection method of permanent magnetic ferrite pre-sintered material |
| CN112919878A (en) * | 2020-12-29 | 2021-06-08 | 南京泰瑞新材料科技有限公司 | Magnetic powder preparation process and automatic control system thereof |
| CN113503736A (en) * | 2021-07-01 | 2021-10-15 | 南京溧水金洪磁性元件有限公司 | Production method and device of permanent magnetic ferrite for low-noise permanent magnet motor |
| CN113503736B (en) * | 2021-07-01 | 2022-03-25 | 南京溧水金洪磁性元件有限公司 | Production method and device of permanent magnetic ferrite for low-noise permanent magnet motor |
| CN115894003A (en) * | 2022-12-20 | 2023-04-04 | 矿冶科技集团有限公司 | Pelletizing method and application of pre-sintered material for permanent magnetic ferrite |
| CN115894003B (en) * | 2022-12-20 | 2023-10-24 | 矿冶科技集团有限公司 | Pelletizing method and application of presintering material for permanent magnetic ferrite |
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Application publication date: 20121128 |