CN106269145A - A kind of high-efficient grinding Processes and apparatus of mineral - Google Patents
A kind of high-efficient grinding Processes and apparatus of mineral Download PDFInfo
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- CN106269145A CN106269145A CN201510257370.8A CN201510257370A CN106269145A CN 106269145 A CN106269145 A CN 106269145A CN 201510257370 A CN201510257370 A CN 201510257370A CN 106269145 A CN106269145 A CN 106269145A
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Abstract
The present invention relates to dry and wet grinding technics and the equipment of one or more Ores, belong to metallic ore and nonmetallic ore and other high-new raw material deep processing pulverizing and superfine technique field, provide a kind of new and effective grinding technics, the high linear speed milling zone produced by the three axle high-speed stirred of this equipment, grind pressure relief area, material thickness grading district carries out high-efficient grinding, it is suitable for iron ore, bauxite ore, copper mine, titanium ore, the thickness milling and extracting of the metallic ores such as gold mine and nonmetallic ore wollastonite, quartz, advanced ceramic raw material, pigment, Muscovitum, ink etc., it is particularly suitable for the raw-material thickness of architectural pottery to grind.
Description
Technical field
The present invention relates to a kind of Ore grinding technics and equipment, belong to metal and nonmetallic ore and other high-new raw material deep processing pulverizing and superfine grinding
Technical field.
Background technology
In recent years, China can produce the equipment of various types of pulverizing thickness material, substantially can meet the need in China's nonmetallic ore actual production
Want.Along with rich ore, the continuous consumption of free-milling ore resource, the proportion of refractory ore is increasing, domestic existing a large amount of gold mines, weakly magnetic iron ore,
Manganese ore, phosphorus ore, bauxite etc. cannot effectively sort because target minreal and associated mineral disseminated grain size are too thin, fine between the mineral of mineral resources
Embedding cloth characteristic determines and Ore must be carried out Ultrafine Grinding so that it is monomer dissociation, can realize effective sorting of mineral.
In Ore fine grinding or Ultrafine Grinding operation, when using the mineral in conventional ore grinding technology (such as ball mill) monomer dissociation Ore, ore grinding energy consumption and life
It is at a relatively high for producing cost.Even if mog can make mineral obtain monomer dissociation, but the overground phenomenon of product is serious so that many valuable minerals damage
Lose in sludge, and ore grinding Grin-ding energ7 is higher and production cost remains high, such as the cleaning and Purification of present Armco magnetic iron Ore weak-magnetic iron ore
Production cost is already above the market price, and a lot of IRON ORE enterprises have lost stopping production.
Ultrafine Grinding technology has applied decades in cosmetics, printing ink paint, fine chemistry industry, medicine and other fields, superfine grinding and super-fine classified be
A difficult problem in material deep processing, is also the key in powder technology.Vertical mixing mill is wanted because of the metallic ore Ultra-fine grinding operation adapting to high throughput
Asking and be widely applied, the research of vertical mixing ore grinding technology brings significant economic benefit and social benefit with application for enterprise and country,
Its wide market, nineteen twenty-eight Klein and Szegvari proposes Ball-stirring mill concept and completes wet grinding pulverizing, and within 1948, high speed stirred ball mill is asked
Generation, nineteen fifty-two Japan river end heavily wins doctor's invention tower grinding machine (TowerMill i.e. vertical helical ore mill).First standing in mineral processed and applied
Formula spiral ore mill is manufactured by Kubota company of Japan, and Metso mineral company obtained this technology in 1979, and the grinding machine of production is called
Vertimill grinding machine.To the development of the new material sixties in 20th century, various agitator mills formally start appearance, such as U.S. Union Process
Company, Xi Chuan company of Japan (HOSOKAWA), resistance to (NETZSCH) company of speeding of Germany, Germany Dao Laishi (Drais) company, AGMW company of Switzerland
The superfine stirring mill complete set of equipments of the productions such as tall and erect (Metso) Kuang Ji company of WPM type vertical wet-process continuous mixing mill and U.S. of the U.S. manufactured, it sets
Standby pattern has the forms such as vertical, horizontal.Grinding machine is made up of parts such as vertical cylinder, helical mixing blade, classifying equipoment and driving means.Papermaking,
Plastics, coating fine chemistry industry, medicine, pottery, light electric industry TFT-LCD, jetted ink, electronics, magnetic material, cell breakage, oxide,
The development of the industries such as food, the fineness of materials of needs is superfine, and such as triple superphosphate coating level requires-2um ＞=90%-95%, d50 ＜=0.5-0.7um, and produces
Amount is relatively big, ceramic grade Zirconium orthosilicate. at-1um ＞=90%-95%, d50 ＜=0.5-0.7um,.The domestic end of the eighties, occur in that 100L, 300L and
The large-scale Superfine Stirred Mill of 500L, equipment quality is also improving constantly, from paint, the miniature sand mill forward metallic ore of pigment industry and non-ferrous metal
The large-scale agitating mill development of ore deposit application.But existing vertical helical grinding machine agitator mill particularly large-scale vertical spiral grinding machine and large-scale ultrafine stirring
Grinding machine still has a lot of deficiency.Basic milling action such as Vertimill grinding machine is shelled rather than impact process realization, therefore its feed grain by mill
Degree can not be too big, typically less than 3mm, and this grinding machine spiral outer marginal circumference speed is the lowest for about 3m/s, and grinding efficiency is the highest, horizontal with tradition
Ball mill is compared, and energy-saving effect can only promote 30%-35%.Bar type agitator mill rotates with high speed degree, turn up 550r/min, its rod tip speed
Degree is 11m/s, and grinding efficiency is the highest, and energy-saving effect can only promote 35%-50%, and power of motor is excessive, and shaft is the most stuck, if
Rotating speed improves, and according to existing equipment and technology condition, and technical matters then production efficiency can not improve, energy consumption increases on the contrary.
In order to meet the needs of social production development, it is faced with the severe challenge saving the sustainability of natural resources development strategy such as the energy, conservation of nature environment,
Need to reduce the factors such as energy consumption, noise, pollution, be greatly improved production efficiency, reduce energy consumption, it is ensured that the quality of ore milling product, it is desirable to floor space
Little, energy-saving and cost-reducing, noise is usually less than 85db, for meeting industrial needs, the invention provides a kind of new grinding Processes and apparatus
Carry out high-efficient grinding, be suitable for the thickness milling and extracting of the metallic ores such as iron ore, bauxite ore, copper mine, titanium ore, gold mine, be also particularly suitable for building pottery
The raw-material thickness of porcelain is ground.
Summary of the invention
For existing grinding attachment and the deficiency of grinding process technology, the invention provides a kind of new grinding technique, by the milling zone of equipment,
Pressure relief area, material thickness grading district carry out high-efficient grinding, are suitable for the thickness of the metallic ores such as iron ore, bauxite ore, copper mine, titanium ore, gold mine
Milling and extracting, is particularly suitable for the raw-material thickness of architectural pottery and grinds.Existing vertical helical grinding machine ore grinding relies on gravity to carry out rubbing with the hands mill, in layer
Mill stripping and can not impact grinding, it is the lowest that mill speed rubbed with the hands by abrasive media or material, only about 3m/s, existing vertical bar type agitator mill with in
Rotary impact crushing grinding at high speed, turn up 550r/min, its rod tip speed degree is 11～13m/s, and now axle center has formed inanition and do not grinds
Grinding media or material carry out rubbing the mill effective abrasive areas of impact grinding with the hands and just reduce, if to improve the inanition that axle center is formed for again the biggest for speed, effectively grind
Mill region is the least, it is impossible to make full use of Energy Efficient grinding material, and quite a few energy does violent being centrifuged in abrasive media or material
Motion, according to existing equipment and technology condition, and technical matters then production efficiency can not improve, energy consumption increases on the contrary.
The high-efficient grinding Processes and apparatus of a kind of mineral of the present invention is characterized in that the high linear speed that the three axle high-speed stirred by this equipment produce grinds
District, additional grinding pressure relief area, material thickness grading district carry out high-efficient grinding, equipment mainly by body, mill tube, agitator, bottom valve, motor,
Feeding engine and cooling system composition.The high-efficient grinding Processes and apparatus of a kind of mineral of the present invention is characterized in that three described axle high-speed stirred refer to mill
In cylinder, in equilateral triangle, three agitators of arrangement form, and during grinding, three identical clockwises of agitator rotate agitation grinding, and single agitator makes to grind
Grinding media and material are mutually with higher than 10～the shear rate motion of 16m/s.Because single agitator makes abrasive media and material mutually to be higher than
The shear rate motion of 10～16m/s, then the region abrasive media that three agitators are interlaced and material are mutually with higher than 20～the cutting of 32m/s
The motion of cutting speed degree carries out rubbing mill impact grinding with the hands, then grinding efficiency is greatly improved.
The additional grinding pressure relief area effect of the present invention is when axle high-speed stirred produces high linear speed, it is to avoid axle center forms inanition, thus avoids grinding
Medium or material do violent centrifugal motion, effectively keep abrasive areas, additional grinding pressure relief area are made up of abrasive media or material or grind
Grinding media material forms, and additional grinding pressure relief area height is to be determined by three agitator velocities of rotation.
Agitator in the high-efficient grinding Processes and apparatus of a kind of mineral of the present invention can be disc mixer, bar type agitator, turbine type agitator.
Within bar type agitator allows relatively thick preferably 30 millimeters of the initial particle size of pan feeding, disc mixer allow the initial particle size of pan feeding medium preferably 5 millimeters with
In, within turbine type agitator initial particle size relatively thin preferably 1 millimeter.
If the agitator disc mixer in the high-efficient grinding Processes and apparatus of a kind of mineral of the present invention or bar type agitator then three shafts
On dish and the preferred interlaced arrangement of rod.
Its special case of high-efficient grinding Processes and apparatus in the high-efficient grinding Processes and apparatus of a kind of mineral of the present invention can be that single shaft high speed stirring produces
High linear speed milling zone, additional grinding pressure relief area, material thickness grading district carries out high-efficient grinding, is the simplification version of present invention process scheme.
Overflow collection mouth in the high-efficient grinding Processes and apparatus of a kind of mineral of the present invention refers to that the material ground is distinguished choosing through thickness grading and flowed out
Region, can be in the top of this clearly demarcated equipment or the bottom in agitator axle center.In the high-efficient grinding Processes and apparatus of a kind of mineral of the present invention
Bottom overflow collection mouth refer to grind material installs on shaft centrifuge thickness grading sorting outflow region.
The centrifuge installed on shaft in the high-efficient grinding Processes and apparatus of a kind of mineral of the present invention is used for the sorting of thickness stock grading, special
Not being the grinding separation of hyperbaric material such as copper alloy, what the grinding of hard lead separated etc., centrifuge grading wheel is mainly by with multiple spirals
Blade forms, the linear velocity of blade afterbody higher than the linear velocity of the blade-section on front side of it, mainly include forward flange dish, rear stub,
Multiple blades form, and blade is fixedly connected respectively with forward flange dish, rear stub, have charging and stitch between adjacent blade, multiple blades interior
Side forms cavity, is fixed by one of them ring flange and shaft, and another ring flange is enclosed within discharge nozzle and discharge nozzle connects, and powder material must
Selection must be rotated through blade and certainly feed in seam enters discharge nozzle and enter collection port.
The high-efficient grinding Processes and apparatus of a kind of mineral of the present invention is mainly received by the overflow on body frame, mill tube, agitator, bottom valve, motor, top
The grading wheel collection port of Ji Kou or stirrer bottom, feeding engine or siccative pay-off and cooling system composition.During work, cylinder is built with necessarily
The abrasive media ceramic bead of quantity, preferably Jing Dezhen Bai Te Weir wear-resisting alumina ball, slurry material, by feeding engine suction, is sent into bottom ground cylinder
In sand cylinder, motor drives agitator high speed rotating by main shaft, and its rotating speed is up to 400～2300r/min.Abrasive media, material are via stirring
The high-speed rotation of device, gives and grinds alumina balls with enough kinetic energy, strong impact occurs with the granule being ground, shears, compress and rub against work
With, material is pulverized and grinds.Through grind produce release mesh material, by the material thickness grading district segregation apparatus on cylinder top with grind
Grinding media separates, and discharges from discharging opening.Owing to using continuous feed-grind a discharging, whole production process is all carried out continuously.Such as dried fruits
Material feeding, then by siccative pay-off pan feeding in the middle of three shafts.
Detailed description of the invention
Example 1 grinds iron ore, 80 mesh iron ore slurry pan feedings, 250 mesh dischargings.
The high-efficient grinding Processes and apparatus of a kind of mineral is mainly by body frame, the high 2.5 meters of mill tubes of diameter 2 meters, three bar type agitators, diameters 580
Li putting alumina balls cylinder bottom door, 90KW stirring motor three, feeding engine device and water cooling system composition, bar type agitator rod length 30 centimetres is straight
7 centimetres of footpath, is uniformly distributed 3 in one week, divides three layers of every interlamellar spacing 38 centimetres, shaft length 3 rice diameter 120 centimetres.During work, in cylinder
Producing wear-resisting alumina gauge ball lattice 3～6 millimeters equipped with the Jing Dezhen Bai Te Weirs of 2 meters high, 1 meter, its middle and upper part high abrasion alumina balls are additional grinds pressure
Strong relief area, siccative feeding, by feeding engine device pan feeding bottom mill tube, motor drives agitator high speed rotating by main shaft, its rotating speed up to
400r/min.Abrasive media, material are via the high-speed rotation of agitator, and imparting grinding alumina balls are with enough kinetic energy, with the granule being ground
There is strong impact, shear, compress and rub against effect, material is pulverized and grinds.Through grinding the material producing release mesh, by cylinder
The material thickness grading district segregation apparatus on body top separates with abrasive media, discharges from discharging opening, grinds material-water ratio technique and performs by prior art.By
In using continuous feed-grind a discharging, whole production process is all carried out continuously.In Xishuangbanna of Yunnan one mining area produces the most about 300T ferrum
Ore siccative, different regions iron ore cleavage difference then hourly output is the most variant.
Example 2 grinds architectural pottery raw material feldspar powder, 2～3 mesh Anhydrite siccative pan feedings, 250 mesh dischargings.
The high-efficient grinding Processes and apparatus of a kind of mineral is mainly by body frame, the high 2.5 meters of mill tubes of diameter 2 meters and post Jing Dezhen Bai Te Weir and produce
Wear-resisting alumina backing member, three bar type agitators, diameters 280 centimetres put alumina balls bottom valve, 90KW stirring motor three, siccative pay-off
And water and add grinding aid system, water cooling system composition, bar type agitator rod length 30 cm diameter 7 centimetres, within one week, be uniformly distributed 3,
Dividing three layers of every interlamellar spacing 38 centimetres, shaft length 3 rice diameter 120 centimetres, stirring rod and shaft all have wear-resisting alumina to serve as a contrast.During work,
Cylinder produces wear-resisting alumina gauge ball lattice 5～6 millimeters built with the Jing Dezhen Bai Te Weir of 2 meters high, and 1 meter, its middle and upper part high abrasion alumina balls are additional to be ground
Mill pressure relief area, by siccative pay-off pan feeding in the middle of three shafts, motor drives agitator high speed rotating by main shaft, and its rotating speed can
Reach 500r/min.Abrasive media, material via the high-speed rotation of agitator, give and grind alumina balls with enough kinetic energy, be ground
There is strong impact, shear, compress and rub against effect in grain, pulverizes material and grind.Through grinding the material producing release mesh, pass through
The material thickness grading district segregation apparatus on cylinder top separates with abrasive media, discharges from discharging opening, grinds material-water ratio technique and performs by prior art.
Owing to using continuous feed-grind a discharging, whole production process is all carried out continuously.Produce the most about 155T feldspar powder siccative.
Example 3 grinds copper alloy powder, 80 mesh copper alloy powder siccative pan feedings, 250 mesh dischargings.
The high-efficient grinding Processes and apparatus of a kind of mineral is mainly by body frame, the high 2.5 meters of mill tubes of diameter 2 meters and post Jing Dezhen Bai Te Weir and produce
Wear-resisting alumina backing member, three bar type agitators, three 3 grading wheels being arranged on bar type stirrer bottom, grading wheel flange endoporus 120 lis
Rice, one fixes with bottom axle, and the other end is enclosed within 80 centimetres of discharge nozzles of diameter and discharge nozzle connection, diameter 280 centimetres put alumina balls bottom valve,
90KW stirring motor three, siccative pay-off and water and add grinding aid system, water cooling system composition, bar type agitator rod length 30 centimetres
Diameter 7 centimetres, is uniformly distributed 3 in one week, points of three layers every interlamellar spacing 38 centimetres, shaft length 3 rice diameter 120 centimetres, stirring rod and stirring
Mixing axle all has wear-resisting alumina to serve as a contrast.During work, cylinder produces wear-resisting alumina gauge ball lattice 4～6 millimeters built with the Jing Dezhen Bai Te Weir of 2 meters high, its
High abrasion alumina balls additional grinding pressure relief area, 1 meter, middle and upper part, by siccative pay-off pan feeding in the middle of three shafts, motor is by main
Axle drives agitator high speed rotating, and its rotating speed is up to 500r/min.Abrasive media, material, via the high-speed rotation of agitator, give and grind oxidation
With enough kinetic energy, strong impact is there is, shears, compresses and rubs against effect, material is pulverized and grinds in aluminum ball with the granule being ground.
Through grinding the material producing release mesh, divided with abrasive media by the material thickness grading district segregation apparatus of 3 grading wheels of cylinder stirrer bottom
From, discharge from discharging opening, grind material-water ratio technique and perform by prior art.Owing to using continuous feed-grind a discharging, whole production process is all
It is carried out continuously.Produce the most about 65T copper alloy powder siccative.
Described above is not limitation of the present invention, and the present invention is also not limited to the example above, and those skilled in the art, at this
In bright essential scope, the change made, retrofit, add or replace, all should belong to protection scope of the present invention.
Claims (8)
1. the high-efficient grinding Processes and apparatus of mineral is characterized in that high linear speed milling zone that the three axle high-speed stirred by this equipment produce, outer
Add grinding pressure relief area, material thickness grading district carries out high-efficient grinding, and equipment is mainly by body, mill tube, agitator, bottom valve, motor, feeding
Pump, overflow collection mouth and cooling system composition.
The high-efficient grinding Processes and apparatus of a kind of mineral the most as claimed in claim 1 it is characterized in that three described axle high-speed stirred refer in mill tube in
Three agitator compositions of equilateral triangle arrangement, during grinding, three identical clockwises of agitator rotate agitation grinding, and single agitator makes abrasive media
With material mutually with higher than 10～16m/s shear rate motion.
The high-efficient grinding Processes and apparatus of a kind of mineral the most as claimed in claim 1 is characterized in that described agitator can be disc mixer, rod
Formula agitator, turbine type agitator.
If the high-efficient grinding Processes and apparatus of a kind of mineral the most as claimed in claim 3 it is characterized in that described agitator disc mixer or
Dish on bar type agitator then three shafts and the preferred interlaced arrangement of rod.
The high-efficient grinding Processes and apparatus of a kind of mineral the most as claimed in claim 1 is characterized in that described additional grinding pressure relief area is by grinding
Grinding media or material composition or abrasive media material form, and additional grinding pressure relief area height is to be determined by three agitator velocities of rotation.
The high-efficient grinding Processes and apparatus of a kind of mineral the most as claimed in claim 1 is characterized in that described its special case of high-efficient grinding Processes and apparatus
Be the high linear speed milling zone of single shaft high speed stirring generation, additional grinding buffers pressure district, material thickness grading district carries out high-efficient grinding.
The high-efficient grinding Processes and apparatus of a kind of mineral the most as claimed in claim 1 is characterized in that described overflow collection mouth refers to the material ground
The region that choosing is flowed out is distinguished through thickness grading, can be in the top of this clearly demarcated equipment or the bottom in agitator axle center.
The high-efficient grinding Processes and apparatus of a kind of mineral the most as claimed in claim 7 is characterized in that described bottom overflow collection mouth refers to grinding
The region that the centrifuge thickness grading sorting that material is installed on shaft is flowed out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510257370.8A CN106269145A (en) | 2015-05-14 | 2015-05-14 | A kind of high-efficient grinding Processes and apparatus of mineral |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510257370.8A CN106269145A (en) | 2015-05-14 | 2015-05-14 | A kind of high-efficient grinding Processes and apparatus of mineral |
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| CN201510257370.8A Pending CN106269145A (en) | 2015-05-14 | 2015-05-14 | A kind of high-efficient grinding Processes and apparatus of mineral |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61171550A (en) * | 1984-11-09 | 1986-08-02 | オムヤ ゲ−エムベ−ハ− | Stirring ball mill |
| CN102688713A (en) * | 2012-06-07 | 2012-09-26 | 王洪福 | Horizontal multifunctional stirring machine |
| CN202778621U (en) * | 2012-07-18 | 2013-03-13 | 芜湖市三山龙城新材料有限公司 | Grinder stirrer |
| CN103071568A (en) * | 2013-02-17 | 2013-05-01 | 山东天一化学股份有限公司 | Continuous grinding method for brominated flame retardant and grinding machine for realizing method |
-
2015
- 2015-05-14 CN CN201510257370.8A patent/CN106269145A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61171550A (en) * | 1984-11-09 | 1986-08-02 | オムヤ ゲ−エムベ−ハ− | Stirring ball mill |
| CN102688713A (en) * | 2012-06-07 | 2012-09-26 | 王洪福 | Horizontal multifunctional stirring machine |
| CN202778621U (en) * | 2012-07-18 | 2013-03-13 | 芜湖市三山龙城新材料有限公司 | Grinder stirrer |
| CN103071568A (en) * | 2013-02-17 | 2013-05-01 | 山东天一化学股份有限公司 | Continuous grinding method for brominated flame retardant and grinding machine for realizing method |
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Application publication date: 20170104 |