CN108043522A - A kind of ring roll grinding machine and grinding method for iron sial powder mull - Google Patents

A kind of ring roll grinding machine and grinding method for iron sial powder mull Download PDF

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Publication number
CN108043522A
CN108043522A CN201810048457.8A CN201810048457A CN108043522A CN 108043522 A CN108043522 A CN 108043522A CN 201810048457 A CN201810048457 A CN 201810048457A CN 108043522 A CN108043522 A CN 108043522A
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CN
China
Prior art keywords
powder
iron
ring
grinder
grinding
Prior art date
Application number
CN201810048457.8A
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Chinese (zh)
Inventor
王建
曹文磊
Original Assignee
青岛联瑞精密机械有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛联瑞精密机械有限公司 filed Critical 青岛联瑞精密机械有限公司
Priority to CN201810048457.8A priority Critical patent/CN108043522A/en
Publication of CN108043522A publication Critical patent/CN108043522A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/08Mills with balls or rollers centrifugally forced against the inner surface of a ring, the balls or rollers of which are driven by a centrally arranged member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C2015/002Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier

Abstract

The invention discloses a kind of ring roll grinding machines and grinding method for iron sial powder mull,The ring roll grinding machine,It includes powder concentrator and grinder,The powder concentrator is mounted on the top of grinder,The powder concentrator includes stent,Body,Impeller spindle,Motor and impeller,The body is equipped with discharge gate and feed inlet,The motor is connected with impeller spindle,The impeller spindle is connected with impeller,The grinder includes grinding motor,Reduction box,Host,Speed reducer coupling,Grinder main shaft,Bearing insert,Material separating disc,Bull ring,Mill hammer,Turntable,Spiral case,Pedestal,The material separating disc,Turntable is sleeved on grinder main shaft,The mill hammer is mounted on by pin on turntable,The bull ring is mounted in spiral case,The spiral case is fixed on pedestal,Ring roll mill structure advantages of simple,Grinding method high efficient and reliable,Ensure the performance of iron sial powder after grinding,Control granularity is facilitated to be distributed.

Description

A kind of ring roll grinding machine and grinding method for iron sial powder mull
Technical field
The invention belongs to iron sial powder grinding technique fields, and in particular to a kind of ring roll for iron sial powder mull Grinding machine and grinding method.
Background technology
In recent years, soft magnet sial powder and its powder core product receive great pass in the application of electron electric power industry Note.Electronic device using Fe-Si-Al magnetic core as magnetic core is widely used to solar energy, the control power supply of wind energy conversion, with the sun Can be the LED streetlamp power source of power supply, the energy converter of electric vehicle and energy saving energy storage device, the power industry of household electrical appliance Many fields such as energy-storage reactor, absorbing material is made using iron sial powder in the producer also having, and purposes is constantly expanding. Iron sial(Fe85%-Si9.5%-Al5.5%)(Sendust)The saturation induction density Ms of material and electricalresistivityρ are than iron nickel molybdenum (Fe17%-Ni81%-Mo2%)(MPP)It is high, so that iron sial pulverulent product has good magnetic property.Cheap iron sial Many magnetic characteristics of alloy powder are close with expensive iron nickel-molybdenum alloy powder, and application band is essentially identical, therefore are iron The fabulous substitute of nickel molybdenum powder product.Due to the economy of iron sial powder, iron sial powder and its product are answered People's keen interest is caused with research.With the requirement to high performance material, i.e., to the quality requirements of powder raw material increasingly The index of harshness, the particles size and distribution of powder, clean level, economic performance etc. is higher and higher.
The production method that the prior art obtains iron sial powder mainly includes:It is atomized legal system powder(Water atomization, aerosolization), machine Tool crush method.Gas atomization limits its application due to of high cost, and powder surface oxidation prepared by water atomization, so Generally use mechanical crushing method prepares iron sial powder.Using conventional Mechanical Crushing method:Melted sendust warp It crosses after getting rid of the Fast Cooling with machine, into jaw crusher coarse crushing, then passes through the carry out ball milling of tumbling ball mill, ball milling again Complete fine powder enters back into screening machine and carries out the varigrained iron sial powder of screening acquisition, and powder size is difficult to control, generation Fine powder is more.
The content of the invention
In order to overcome above-mentioned technical problem existing for prior art, it is an object of the present invention to provide one kind to be used for The ring roll grinding machine and grinding method of iron sial powder mull, ring roll mill structure advantages of simple, grinding method high efficient and reliable, it is ensured that The performance of iron sial powder, facilitates Control granularity to be distributed after grinding.
A kind of ring roll grinding machine for iron sial powder mull provided by the invention, it includes powder concentrator and grinder, institute The top that powder concentrator is mounted on grinder is stated, the powder concentrator includes stent, body, impeller spindle, motor and impeller, described Body is equipped with discharge gate and feed inlet, and the motor is connected with impeller spindle, and the impeller spindle is connected with impeller, described to grind Grinding machine includes grinding motor, reduction box, host, speed reducer coupling, grinder main shaft, bearing insert, material separating disc, bull ring, mill Hammer, turntable, spiral case, pedestal, the material separating disc, turntable are sleeved on grinder main shaft, and mill hammer is mounted on by pin On turntable, the turntable is set for layering, and no less than two layers, the bull ring is mounted in spiral case, and the spiral case is fixed on On pedestal, the host, speed reducer coupling are mounted on the bottom of pedestal.
The grinding motor is connected with reduction box, and the reduction box is connected with speed reducer shaft joint, the speed reducer connecting shaft Device is connected with grinder main shaft, and the bull ring is equipped with raceway, and the mill hammer is opposite with raceway, and the mill is hammered into shape at least provided with 4, Mill hammer is vertically arranged above and below, and the end of each mill hammer is equipped with emery wheel, grind motor drive in succession reduction box, speed reducer shaft joint, Grinder main shaft rotates, and the multigroup turntable being fixed on grinder main shaft rotates therewith, the multiple mills hammer installed on turntable, from Under the action of mental and physical efforts, hammer wheel is thrown toward bull ring, and huge pressure is generated between bull ring, material is crushed with this.
The method of iron sial powder mull includes step in detail below:First, crush:By alloy pig using jaw crusher into Row coarse crushing, iron aluminum silicon powder grain size is less than 20mm after coarse crushing, and is packed into feed bin;2nd, ball is clayed into power:Iron silicon in feed bin Aluminium powder is sent into the feed inlet of ring hammer-mill through screw(-type) feeder, first falls into material separating disc, and centrifugation is thrown in the crushing chamber at edge, from It is dissipated under the action of mental and physical efforts to circumferential edge, and interior ground of the raceway for falling into bull ring hammers punching press, rolling stone roller into shape, grinds and crush;3rd, sieve: Iron aluminum silicon powder falls into the second layer again after first layer crushes, and is thrown away after the second layer crushes by throwing disc, the thinner alloy of granularity The wind-force that powder is more than 5 meter per seconds by wind speed is pumped into grader, and the grader for rotating 500rpm at a high speed is more than the coarse granule iron silicon of 70um Aluminium powder falling is refaced, and the fine grained iron aluminum silicon powder less than 70um then enters cyclone collector with air-flow or bagroom is collected, Gas solid separation, the fine grained iron aluminum silicon powder isolated then are discharged from discharge valve;4th, the fine grained iron aluminum silicon powder being ground passes through grain Spend proportioning, annealing, insulating wrapped, compression moulding, heat treatment, impregnation cures, insulation sprays as finished product, at the annealing It is 600 DEG C -680 DEG C to manage temperature.
It is provided by the invention a kind of to exist for the ring roll grinding machine and grinding method, its advantage of iron sial powder mull In entire process of lapping temperature is low, and less than 48 degrees Celsius, to the oxidation very little of sendust, nitrogen protection is not required;2nd, imitate Rate is high, is not in the excessive phenomenon of fine powder using air classification;3rd, flexible control can be controlled by adjusting the rotating speed of grading wheel Particle size range processed;By setting the frequency sweep function of frequency converter, Control granularity can be facilitated to be distributed;4th, emery wheel and bull ring are directly to material Carry out extruding crushing, grinding efficiency is high, has material between emery wheel and bull ring as padding layer, is not directly contacted with, so wear compared with Small, bull ring and mill hammer are inscribe cooperation grinding, and are contacted for arc, and the active area of abradant surface is big, further improves grinding Efficiency.
Description of the drawings
Fig. 1 is a kind of ring roll mill structure schematic diagram for iron sial powder mull of the invention;
The method process flow diagram of Fig. 2 iron sial powder mulls.
It is marked in figure:
1. motor;2. feed inlet;3. impeller spindle;4. body;5. impeller;6. stent;7. discharge gate;8. spiral case;9. grinder Main shaft;10. bull ring;11. host;12. bearing insert;13. speed reducer coupling;14. material separating disc;15. pin;16. mill hammer; 17. turntable;18. pedestal;19. reduction box;20. grind motor;21. feed bin;22. screw(-type) feeder;23. ring hammer-mill;24. rotation Wind collector;25. discharge valve;26. bagroom;27. air-introduced machine.
Specific embodiment
With reference to the accompanying drawings, with reference to one embodiment, to a kind of ring for iron sial powder mull provided by the invention Roller mill and grinding method are described in detail.
Embodiment
With reference to Fig. 1, a kind of ring roll grinding machine for iron sial powder mull of the present embodiment, it includes powder concentrator and grinding Machine, the powder concentrator be mounted on grinder top, the powder concentrator include stent 6, body 4, impeller spindle 3, motor 1 and Impeller 5, the body 4 are equipped with discharge gate 7 and feed inlet 2, and the motor 1 is connected with impeller spindle 3, the impeller spindle 3 It is connected with impeller 5, the grinder includes grinding motor 20, reduction box 19, host 11, speed reducer coupling 13, grinding owner Axis 9, bearing insert 12, material separating disc 14, bull ring 10, mill hammer 16, turntable 17, spiral case 8, pedestal 18, the material separating disc 14, turntable 17 It is sleeved on grinder main shaft 9, mill hammer 16 is mounted on by pin 15 on turntable 17, and the turntable 17 sets for layering It puts, and no less than two layers, the bull ring 10 is mounted in spiral case 8, and the spiral case 8 is fixed on pedestal 18, the host 11, Speed reducer coupling 13 is mounted on the bottom of pedestal 18.
The grinding motor 20 is connected with reduction box 19, and the reduction box 19 is connected with speed reducer shaft joint 13, described to subtract Fast machine shaft joint 13 is connected with grinder main shaft 9, and the bull ring 10 is equipped with raceway, 16, the mills opposite with raceway of the mill hammer At least provided with 4, mill hammer is vertically arranged hammer 16 above and below, and the end of each mill hammer 16 is equipped with emery wheel, grinds 20 successive band of motor Dynamic reduction box 19, speed reducer shaft joint 13, grinder main shaft 9 rotate, and are fixed on multigroup turntable 17 on grinder main shaft 9 therewith It rotates, the multiple mills hammer 16 installed on turntable 17, under the influence of centrifugal force, hammer wheel is thrown toward bull ring 10, is produced between bull ring 10 Raw huge pressure, crushes material with this.
Refering to Fig.1 to Fig.2, the method for iron sial powder mull includes step in detail below:First, crush:Alloy pig is adopted Coarse crushing is carried out with jaw crusher, iron aluminum silicon powder grain size is less than 20mm after coarse crushing, and is packed into feed bin 21;2nd, ball milling into Powder:Iron aluminum silicon powder in feed bin 21 is sent into the feed inlet of ring hammer-mill 23 through screw(-type) feeder 22, first falls into material separating disc, centrifuges It is thrown in the crushing chamber at edge, dissipates under the influence of centrifugal force to circumferential edge, and the raceway for falling into bull ring is interior by the punching press of mill hammer, rolling It grinds, grind and crush;3rd, sieve:Iron aluminum silicon powder falls into the second layer again after first layer crushes, by getting rid of after the second layer crushes Disk is thrown away, and under the action of air-introduced machine 27, the wind-force that the thinner alloyed powder of granularity is more than 5 meter per seconds by wind speed is pumped into grader, high Coarse granule iron aluminum silicon powder falling of the grader of speed rotation 500rpm more than 70um is refaced, the fine grained iron aluminum silicon powder less than 70um Then enter cyclone collector 24 with air-flow or bagroom 26 is collected, gas solid separation, the fine grained iron aluminum silicon powder isolated is then It is discharged from discharge valve 25;4th, the fine grained iron aluminum silicon powder being ground by grain size proportion, annealing, insulating wrapped, be pressed into Type, heat treatment, impregnation cures, insulation spraying is finished product, specifically:The weight ratio of the grain size proportion is:100-200 mesh 12%, 200-300 mesh 40%, 300-320 mesh 10%, 320-325 mesh 38%.The annealing temperature is 650 DEG C, the insulating bag It covers using the full and uniform mixing of heat resistant inorganic binding agent, heating stirring is dried under 180 DEG C of temperature conditionss, is wrapped up, and is wrapped up Annulus sample is made with the pressure of 8T/cm3 in powder afterwards, when then heat treatment 1 is small in 600 DEG C of nitrogen, impregnation curing afterwards, Finished product is made in insulation spraying.

Claims (6)

1. a kind of ring roll grinding machine for iron sial powder mull, it is characterised in that:It includes powder concentrator and grinder, the choosing Powder machine is mounted on the top of grinder, and the powder concentrator includes stent, body, impeller spindle, motor and impeller, the body Discharge gate and feed inlet are equipped with, the motor is connected with impeller spindle, and the impeller spindle is connected with impeller, the grinder It hammers into shape, turn including grinding motor, reduction box, host, speed reducer coupling, grinder main shaft, bearing insert, material separating disc, bull ring, mill Disk, spiral case, pedestal, the material separating disc, turntable are sleeved on grinder main shaft, and mill hammer is mounted on turntable by pin On, the bull ring is mounted in spiral case, and the spiral case is fixed on pedestal, and the host, speed reducer coupling are mounted on base The bottom of seat.
2. a kind of ring roll grinding machine for iron sial powder mull according to claim 1, it is characterised in that:The grinding Motor is connected with reduction box, and the reduction box is connected with speed reducer shaft joint, and the speed reducer shaft joint connects with grinder main shaft It connects.
3. a kind of ring roll grinding machine for iron sial powder mull according to claim 1, it is characterised in that:The turntable It is set for layering, and no less than two layers.
4. a kind of ring roll grinding machine for iron sial powder mull according to claim 1, it is characterised in that:The mill hammer At least provided with 4, mill hammer is vertically arranged above and below, and the end of each mill hammer is equipped with emery wheel.
5. a kind of ring roll grinding machine for iron sial powder mull according to claim 1, it is characterised in that:The bull ring Equipped with raceway, the mill hammer is opposite with raceway.
6. the method for iron sial powder mull includes step in detail below:First, crush:Alloy pig is carried out using jaw crusher Coarse crushing, iron aluminum silicon powder grain size is less than 20mm after coarse crushing, and is packed into feed bin;2nd, ball is clayed into power:Iron sial in feed bin Powder is sent into the feed inlet of ring hammer-mill through screw(-type) feeder, first falls into material separating disc, and centrifugation is thrown in the crushing chamber at edge, is centrifuging It is dissipated under the action of power to circumferential edge, and interior ground of the raceway for falling into bull ring hammers punching press, rolling stone roller into shape, grinds and crush;3rd, sieve:Iron Aluminum silicon powder falls into the second layer again after first layer crushes, and is thrown away after the second layer crushes by throwing disc, the thinner alloyed powder of granularity The wind-force for being more than 5 meter per seconds by wind speed is pumped into grader, and the grader for rotating 500rpm at a high speed is more than the coarse granule iron sial of 70um Powder falling is refaced, and the fine grained iron aluminum silicon powder less than 70um then enters cyclone collector with air-flow or bagroom is collected, gas Gu separation, the fine grained iron aluminum silicon powder isolated then is discharged from discharge valve;4th, the fine grained iron aluminum silicon powder being ground passes through granularity Proportioning, annealing, insulating wrapped, compression moulding, heat treatment, impregnation curing, insulation spraying are finished product.
CN201810048457.8A 2018-01-18 2018-01-18 A kind of ring roll grinding machine and grinding method for iron sial powder mull CN108043522A (en)

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Application Number Priority Date Filing Date Title
CN201810048457.8A CN108043522A (en) 2018-01-18 2018-01-18 A kind of ring roll grinding machine and grinding method for iron sial powder mull

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810048457.8A CN108043522A (en) 2018-01-18 2018-01-18 A kind of ring roll grinding machine and grinding method for iron sial powder mull

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108889409A (en) * 2018-09-21 2018-11-27 安徽省徽腾智能交通科技有限公司 Granule forms device, forming method and granule
CN109092448A (en) * 2018-07-18 2018-12-28 潍坊赛美特机械科技有限公司 A kind of industrial pulverizer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109092448A (en) * 2018-07-18 2018-12-28 潍坊赛美特机械科技有限公司 A kind of industrial pulverizer
CN109092448B (en) * 2018-07-18 2021-02-05 潍坊赛美特机械科技有限公司 Industrial pulverizer
CN108889409A (en) * 2018-09-21 2018-11-27 安徽省徽腾智能交通科技有限公司 Granule forms device, forming method and granule
CN108889409B (en) * 2018-09-21 2020-07-10 安徽省徽腾智能交通科技有限公司 Granular agent forming device, forming method and granular agent

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