CN1150062C - A tower type grinding and flotation machine that can realize grinding and flotation at the same time - Google Patents
A tower type grinding and flotation machine that can realize grinding and flotation at the same time Download PDFInfo
- Publication number
- CN1150062C CN1150062C CNB011281014A CN01128101A CN1150062C CN 1150062 C CN1150062 C CN 1150062C CN B011281014 A CNB011281014 A CN B011281014A CN 01128101 A CN01128101 A CN 01128101A CN 1150062 C CN1150062 C CN 1150062C
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- Prior art keywords
- flotation
- grinding
- auxiliary
- tower
- ore
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- Expired - Fee Related
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- 238000005188 flotation Methods 0.000 title claims abstract description 82
- 238000000227 grinding Methods 0.000 title claims abstract description 44
- 239000007858 starting material Substances 0.000 claims description 15
- 238000007688 edging Methods 0.000 claims description 14
- 238000007667 floating Methods 0.000 claims description 14
- 230000002411 adverse Effects 0.000 claims description 13
- 230000001174 ascending effect Effects 0.000 claims description 13
- 238000003801 milling Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 13
- 239000011707 mineral Substances 0.000 abstract description 13
- 238000003756 stirring Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 239000004576 sand Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
- B03D1/087—Subsequent treatment of concentrated product of the sediment, e.g. regrinding
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Crushing And Grinding (AREA)
Abstract
一种塔式磨矿浮选机，由塔式机体、搅拌螺旋体、驱动机构组成，驱动机构通过搅拌螺旋轴带动搅拌螺旋体，其特征在于：塔式机体被分为浮选区和边磨边浮区上下两部分；边磨边浮区中设置搅拌螺旋体，并填充磨矿介质；浮选区的上部设置溢流槽，中部设有辅助浮选搅拌叶轮，下部设置导料槽、尾砂出矿口。本发明集磨矿、分级、矿浆调整——粗选等功能于一体，在对含有可浮性矿物磨矿的同时，于可浮性矿粒表面最新鲜时进行同步浮选。本发明结构简单，使用方便，可广泛用于可浮性矿物的浮选作业，具有降低物料过磨，减少次生泥化和提高选别回收率的作用，应用前景广阔。可实现边磨矿边浮选。
A tower type grinding and flotation machine, which is composed of a tower body, a stirring screw body, and a driving mechanism. The driving mechanism drives the stirring screw body through the stirring screw shaft. The upper and lower parts of the flotation area; the stirring spiral is set in the side grinding and flotation area, and the grinding medium is filled; the upper part of the flotation area is equipped with an overflow tank, the middle part is equipped with an auxiliary flotation stirring impeller, and the lower part is equipped with a guide tank and tailings discharge mouth. The invention integrates the functions of ore grinding, grading, pulp adjustment-roughing, etc., and performs synchronous flotation when the surface of the buoyable ore particles is freshest while grinding ore containing buoyant minerals. The invention is simple in structure and easy to use, can be widely used in the flotation operation of buoyant minerals, has the functions of reducing material overgrinding, reducing secondary mudification and improving sorting recovery rate, and has broad application prospects. It can realize flotation while grinding.
Description
Technical field:
The present invention relates to a kind of mineral enrichment plant, specifically is a kind of tower (vertical) grinding floatation machine that can carry out flotation operation in grinding process simultaneously that has.
Background technology:
Ore grinding and flotation operation are important mineral enrichment operations.The world's 90～95% ores need could be used by other industry after enrichment earlier now.One of employed mineral enrichment method promptly is a floatation, and it is divided into direct flotation and reverse flotation, top-ups to elect come-up purpose mineral as, and reverse flotation is abandoned mine tailing for come-up.No matter adopt which kind of method, the floatability mineral (stone) that all will contain the purpose enrichment earlier enter the flotation operation again after ore mill is ground to certain fineness.Because big of the ore mill that tradition is used is horizontal ball mill, divide lattice type and overflow type, they are when ore grinding, restriction because of its structure, can not form the ore pulp that requires suitable concn and granularity that is suitable for flotation operation in the grinding mill barrel that rotates, evenly inflation is also very difficult, rushes down motion and parabolic motion because the steel ball medium is carried ore pulp formation secretly again, so in horizontal ball mill, can not produce flotation conditions, realize that in ore grinding flotation is also just impossible.
In addition, traditional flotation device is a kind of inflatable flowsheet of slurry agitation device, realizes that flowsheet of slurry agitation is divided into pneumatic type, mechanical impeller stirring-type, owing to do not have the steel ball milling medium in the flotation device, so there is not the ore grinding function.Even add the steel ball milling medium, because the restriction of the stirring pattern of flotation device can not make steel ball move in the flotation body.In fact, the flowsheet of slurry agitation device in the flotation device can't drive the motion within it of milling medium steel ball, adds milling medium in flotation device, can make the forfeiture of flotation device agitating function, so can not produce the ore grinding effect.In any case thereby traditional flotation device does not have the function of ore grinding.
Summary of the invention:
Realize in an operation in order to make ore grinding and flotation operation, thereby improve the rate of recovery of mineral, the invention provides a kind of tower-type grinding floatation machine, form by tower body, agitating auger body, driving mechanism, driving mechanism drives the agitating auger body by the agitating auger axle, it is characterized in that: tower body is divided into two parts about flotation area and the edging floating region, limit; The limit is provided with the agitating auger body in the edging floating region, and fills milling medium; The top of flotation area is provided with overflow launder, and the middle part is provided with auxiliary flotation agitator arm, and the bottom is provided with deflector chute, ore tailing outlet.
In the tower-type grinding floatation machine of the present invention, in order to adjust the relative altitude of ore removal end, described ore tailing outlet external hose.In order to prevent the ore pulp short circuit, described deflector chute, ore tailing outlet along agitating auger body direction of rotation by the configuration of staggering of 30～60 ° of angles.In order to make flotation more abundant, but described auxiliary flotation shaft is the hollow-core construction with qi of chong channel ascending adversely function.
The ore grinding part is preferably selected the structure of a kind of energy-efficient tower grinding-leaching mill of Chinese patent ZL96225373.1 (mandate on July 1st, 1997) for use in the tower-type grinding floatation machine of the present invention, be that described driving mechanism is mainly by the auxiliary starter motor, the auxiliary starter reductor, freewheel clutch, main driving motor, main gear reducer, main shaft constitutes; The auxiliary starter motor links to each other with main shaft by auxiliary starter reductor, freewheel clutch; Main driving motor links to each other with main gear reducer by main drive belt, drives main shaft again; Main shaft links to each other with the agitating auger body by adpting flange.
In addition, main shaft can also join by driving belt and auxiliary flotation shaft, and drives the auxiliary flotation agitator arm on the auxiliary flotation shaft by this.
Described agitating auger body lower position is provided with the qi of chong channel ascending adversely device, and the qi of chong channel ascending adversely device is the cylinder that seals above, periphery and top uniform φ 6～φ 8mm hole.
Tower-type grinding floatation machine provided by the present invention, its underpart is edging floating region, limit, edging floating region in limit is full of ore pulp and the milling medium steel ball of waiting to grind thick material during work, gas charges in the body from the bottom of edging floating region, limit that is the qi of chong channel ascending adversely device of organism bottom, motion through helical stir and steel ball medium, gas forms micro-bubble, and evenly distributes in ore pulp.Under the acting in conjunction of assistant that adds (PH adjusts agent and inhibitor) and foaming agent, making the floatability ore particle can float the upper limit in granularity just can be sorted out, enter the flotation area and the foam overflow area of body middle and upper part then, and froth pulp is discharged outside the body by froth overflow channel.The present invention integrates ore grinding, classification, ore pulp adjustment---and function such as roughly select, to when containing floatability mineral ore grinding, carry out synchronous flotation when the freshest in floatability ore particle surface.The present invention is simple in structure, and is easy to use, can be widely used in the flotation operation of floatability mineral, has that to reduce material overground, reduces secondary argillization and improves the effect that sorts the rate of recovery, has a extensive future.Can realize limit ore grinding limit flotation.
Description of drawings:
Accompanying drawing 1 is the tower-type grinding floatation machine structural representation.
The specific embodiment:
Structure as shown in Figure 1, by auxiliary starter motor 1, auxiliary starter reductor 2; freewheel clutch 3, main drive belt wheel 4, main drive belt 5; main gear reducer 6, bearing housing 7, concentrate jet water spout 8; the float skimming device 9 of adjustment height, froth overflow channel 10, overflow launder 11; flotation transmission negative pulley wheel 12, tension pulley 13, auxiliary flotation shaft 14; auxiliary flotation agitator arm 15, flotation chamber 16, self-protecting liner without screw bolt connection 17; (edging floating region, limit) grinding flotation chamber is vertical ore grinding chamber 18; body 19, qi of chong channel ascending adversely device 20, dump valve 21; blowing breather pipe 22; add air valve 23, gas-adding pipe 24, agitating auger body 25; milling medium (steel ball) 26; siphunculus 27 is failed in sand return, the defeated logical valve 28 of sand return, sand return pipe 29; sand return mouth 30; give ore deposit deflector chute 31, ore tailing outlet 32, agitating auger axle 33; connecting flange 34; feed launder 35, filler pipe 36, stock tank 37 is contained in sand return; chemical feed pipe 38; filling pipe 39, electric machine speed regulation switch board 40, flotation transmission drive pulley 41; main shaft 42; main (transmission) motor 43, main motor pulley 44, auxiliary starter reductor support flange 45 is formed.
Auxiliary starter freewheel clutch 13, bearing housing 7, agitating auger body 25 is given ore deposit deflector chute 31 and qi of chong channel ascending adversely device 20, and is described identical with a kind of energy-efficient tower grinding-leaching mill of Chinese patent ZL96225373.1 (mandate on July 1st, 1997).Sand return mouth 30 is the steel plate in uniform φ 8～φ 10mm hole (interior distance 20) above the thick 20～30mm, and with body 19 spot welding.Self-protecting liner without screw bolt connection 17 and Chinese patent ZL00212519.6 vertical grinder self-protecting liner without screw bolt connection identical (mandate on June 16 calendar year 2001).
Body upper is a flotation area 15, and further by FLOTATION SEPARATION, the froth pulp of formation enters the froth overflow channel 10 on flotation area 15 tops to the floatability ore particle in this zone, and discharges outside the body by froth overflow channel 10.
Sand return pipe 29 is 1～6 small weapon pipe or a sebific duct according to the amount assembling of different disposal ore deposit, with body distance 300～500mm, with body connection place arc transition, guarantee that ore pulp flows unimpeded and makes resistance and loss in head reduce to minimum.
Concentrate jet water spout 8 tips are a current distributor, make water become the fine acicular ejection, and its function is to regulate the come-up impurity content of some mineral, improves concentrate grade.
It is a flexible pipe that mine tailing goes out mine mouth 32 outsides, can adjust the relative altitude of ore removal end, thereby adjusts the ore pulp face height in flotation chamber 16.
Qi of chong channel ascending adversely device 20 is the cylinder that seals above, periphery and top uniform φ 6～φ 8mm hole centre-to-centre spacing 20～25mm, the distance 3～5mm of its top and agitating auger body 25.Such configuration can be so that gas (around reaching) feeding above qi of chong channel ascending adversely pipe 20 by gas-adding pipe 24 and blowing breather pipe 22; Can make again has a district alive between qi of chong channel ascending adversely device 20 and the agitating auger body 25, ore pulp can be emitted along blowing breather pipe 22 by qi of chong channel ascending adversely device 20; And prevent milling medium (steel ball) enter qi of chong channel ascending adversely device 20 and and the agitating auger body between the slit.Such configuration cooperates with sand return mouth 30; can guarantee that present device all can arbitrarily adjust internal body ore pulp surplus arbitrarily for a long time treating that material (inside is full of ore pulp) is shut down, and at auxiliary starting system 1,2; under 3 the cooperation, shut down arbitrarily starting at any time for a long time.
Agitating auger body 25 is for turning clockwise.
The feed deflector chute is extended into flotation chamber 16, is the place of 100～200mm apart from milling medium layer height, makes the thicker ore deposit raw material of giving sink down into lower edge edging floating region (grinding flotation chamber) 18 rapidly.
Mine tailing goes out the mine mouth 32 and the configuration of staggering to ore deposit deflector chute 31 central angles direction at 45.Dextrorotation veer with agitating auger body 25 is a benchmark, and ore tailing outlet 32 is in the place ahead of giving ore deposit deflector chute 31.Ore tailing outlet 32 is in the position of 16 lower middles, flotation chamber.Above-mentioned configuration makes ore pulp be difficult for causing short circuit, that is is unlikely to make ore pulp promptly to flow out through ore tailing outlet 32 without abundant ore grinding and flotation, thereby reduces short circuit.
A side door is opened in the body side in Fig. 1 cutaway view the place ahead, and the high 100mm of side door aspect ratio connecting flange is lower than body 100～150mm, and width is than the wide 20～40mm of agitating auger body.One square ball-putting hole is arranged at the side door bottom, is used under the situation of not opening side door, adjusts ball load in the body 19, is convenient to adjust milling medium weight.While also is convenient at equipment downtime long-time excessively, more at need, emits a part of ball (milling medium) by ball-putting hole and realizes restarting in starting.Self-protecting liner without screw bolt connection 17 also is installed on the side door.When the structure that side is opened the door also made maintenance agitating auger body 25, running part integral body that will body upper was taken apart and is hung out, and makes maintenance more convenient.
Agitating auger body 25 is a fabricated structure, and the outside is a helical blade, and inside is wheel hub, and blade is fixed by bolts on the wheel hub.Agitating auger axle 33 inserts wheel hub with the circumference combination.Agitating auger body 25 foots are fixed with nut; the nut outside is the hollow cylinder protective sleeve of two top openings; nut is wrapped in inside, and the hollow cylinder protective sleeve of two top openings passes agitating auger axle 33 by two bolts of 45 ° of configurations, thereby fixing.Said structure is convenient for changing stirring vane and hollow cylinder protective sleeve, not dismantling connecting flange 34 and opening side door, does not shift out agitating auger body 25 under extra-organismal situation, can finish replacing.
The float skimming device 9 of adjustment height can be adjusted the height of scraping bubble according to the ore pulp face height in the flotation chamber 16 and according to the requirement of different ore-dressing practices, satisfies technological requirement.
Auxiliary flotation agitator arm 15 in the flotation chamber 16 has the function that stirs flotation, by its stirring, make the floatability mineral in flotation chamber 16 further by FLOTATION SEPARATION.
Auxiliary flotation shaft 14 is a quill shaft, has air-breathing and blow vent.Under the situation that stirring wheel 15 in its lower section rotates, can suck air certainly, also can be by the blow vent bubbling air above it.
Use of the present invention is as follows: Xian Jiashui, make water not have milling medium layer in the vertical ore grinding chamber, the clutch freewheel clutch 3 then, start auxiliary starter motor 1, drive main drive belt wheel 4 by the auxiliary starter reductor, and by main gear reducer 6, and then drive main shaft 42 and 25 rotations of agitating auger body.Start main (transmission) motor 43 then, close auxiliary starter motor 1 simultaneously and throw off freewheel clutch 3, realize the driven of equipment.Reinforced by feed launder 35 then, add water by filler pipe 36 by job requirements concentration, PH adjustment agent adds with mineral aggregate or adds by filler pipe 36 wiring solution-formings.Collecting agent and inhibitor etc. join in the sand-returning channel 37 by chemical feed pipe 38, feed the edging floating region, limit in vertical ore grinding chamber 18 in the body.Flotation transmission drive pulley 41 on the main shaft 42 rotates by the flotation transmission negative pulley wheel 12 that belt drives on the auxiliary flotation shaft 14, thereby makes auxiliary flotation agitator arm 15 rotations.Floatability material and milling medium 26 carry out the limit edging under the driving of agitating auger axle 25 floating, under the stirring of the simultaneously levigate auxiliary stirring flotation agitator arm 15 of material in flotation chamber 16, by further FLOTATION SEPARATION, the froth pulp that forms rises to the froth zone on ore pulp surface, form froth bed, and the scraper plate from the foamite system 9 of adjustment height scrapes down, and the come-up foam is scraped outside the body through froth overflow channel 10.Edging tailings floating and after auxiliary flotation in limit is discharged to outside the body by ore tailing outlet 32, and through the classification of external classification device, the classification sand return is carried out regrinding and reconcentration by the edging floating region, limit that sand return pipe 29 returns the vertical ore grinding chamber 18 in the body, the classification overflow can be scanned the back by outside scavenging flotation machine and be thrown tail, scans foam and can return flotation chamber 16 flotation or return the flotation again of regrinding of edging floating region, limit by sand return pipe 29 again by feed launder 35.When needing to shut down after operation finishes, close main (transmission) motor 43, emit ore pulp by blowing breather pipe 22 again.
Claims (8)
1, a kind of tower-type grinding floatation machine is made up of tower body, agitating auger body, driving mechanism, and driving mechanism drives the agitating auger body by the agitating auger axle, it is characterized in that: tower body is divided into two parts about flotation area and the edging floating region, limit; The limit is provided with the agitating auger body in the edging floating region, and fills milling medium; The top of flotation area is provided with overflow launder, and the middle part is provided with auxiliary flotation agitator arm, and the bottom is provided with deflector chute, ore tailing outlet.
2, according to the described tower-type grinding floatation machine of claim 1, it is characterized in that: described ore tailing outlet external hose.
3, according to claim 1 or 2 described tower-type grinding floatation machines, it is characterized in that: described deflector chute, ore tailing outlet dispose by 30～60 ° of angles along agitating auger body direction of rotation.
4, by claim 1 or 2 described tower-type grinding floatation machines, it is characterized in that: described auxiliary flotation shaft is a hollow-core construction.
5, by the described tower-type grinding floatation machine of claim 3, it is characterized in that: described auxiliary flotation shaft is a hollow-core construction.
6, by claim 1 or 2 described tower-type grinding floatation machines, it is characterized in that: described driving mechanism is mainly by the auxiliary starter motor, the auxiliary starter reductor, and freewheel clutch, main driving motor, main gear reducer, main shaft constitutes; The auxiliary starter motor links to each other with main shaft by auxiliary starter reductor, freewheel clutch; Main driving motor links to each other with main gear reducer by main drive belt, drives main shaft again; Main shaft links to each other with the agitating auger body by adpting flange.
7, by the described tower-type grinding floatation machine of claim 6, it is characterized in that: described main shaft joins by driving belt and auxiliary flotation shaft, and drives the auxiliary flotation agitator arm on the auxiliary flotation shaft by this.
8, by claim 1 or 2 described tower-type grinding floatation machines, it is characterized in that: described agitating auger body lower position is provided with the qi of chong channel ascending adversely device, and the qi of chong channel ascending adversely device is the cylinder that seals above, the hole of periphery and top uniform φ 6～φ 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011281014A CN1150062C (en) | 2001-08-29 | 2001-08-29 | A tower type grinding and flotation machine that can realize grinding and flotation at the same time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011281014A CN1150062C (en) | 2001-08-29 | 2001-08-29 | A tower type grinding and flotation machine that can realize grinding and flotation at the same time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401434A CN1401434A (en) | 2003-03-12 |
| CN1150062C true CN1150062C (en) | 2004-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011281014A Expired - Fee Related CN1150062C (en) | 2001-08-29 | 2001-08-29 | A tower type grinding and flotation machine that can realize grinding and flotation at the same time |
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| CN (1) | CN1150062C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774225A (en) * | 2010-03-01 | 2010-07-14 | 长沙矿山研究院 | Full tailings cemented filler mixer |
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| CN100545273C (en) * | 2006-05-10 | 2009-09-30 | 中国科学院金属研究所 | A gold extraction process method for cyanide tailings containing primary sulfide wrapped gold |
| CN101804386B (en) * | 2010-03-22 | 2013-06-05 | 株洲市兴民科技有限公司 | Method and device for flotation by adopting spiral rotor and application |
| EP3025786A1 (en) | 2014-11-28 | 2016-06-01 | Omya International AG | Apparatus for simultaneous grinding and froth flotation |
| CN108435440A (en) * | 2018-03-28 | 2018-08-24 | 中国矿业大学 | A kind of grind floats integrated apparatus and working method |
| CN108514957B (en) * | 2018-05-03 | 2020-12-15 | 黑龙江省宝泉岭农垦溢祥石墨有限公司 | Full-section airlift type micro-bubble mining flotation machine |
| CN109374351B (en) * | 2018-11-30 | 2020-05-08 | 中南大学 | Pressure-controlled ore pulp multi-point synchronous sampling device and method |
| CN110756286A (en) * | 2019-09-12 | 2020-02-07 | 徐州全兴电碳制品有限公司 | Electric carbon product grinding equipment |
| CN112371352A (en) * | 2020-10-21 | 2021-02-19 | 衡阳市大宇锌业有限公司 | Flotation separation device for preparing boric acid from boron ore |
| CN112808396A (en) * | 2020-12-31 | 2021-05-18 | 烟台金鹏矿业机械有限公司 | Vertical heavy medium mill and mineral separation method |
-
2001
- 2001-08-29 CN CNB011281014A patent/CN1150062C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774225A (en) * | 2010-03-01 | 2010-07-14 | 长沙矿山研究院 | Full tailings cemented filler mixer |
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| CN1401434A (en) | 2003-03-12 |
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