CN101585014B - Method for improving washing rate of kaolin clay raw ore - Google Patents
Method for improving washing rate of kaolin clay raw ore Download PDFInfo
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- CN101585014B CN101585014B CN200910111929A CN200910111929A CN101585014B CN 101585014 B CN101585014 B CN 101585014B CN 200910111929 A CN200910111929 A CN 200910111929A CN 200910111929 A CN200910111929 A CN 200910111929A CN 101585014 B CN101585014 B CN 101585014B
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- kaolin
- treadle
- raw ore
- hulling rice
- operated tilt
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Abstract
The invention discloses a method for improving washing rate of kaolin clay raw ore, the process steps are, crushing, smashing into slurry, hydraulic separation, concentration, filter-compression and drying of the kaolin clay raw ore to obtain concentrated ore products of kaolin clay; the crushing time is 8 to 10 hours; clay mineral with high value such as kaolinite and cericite are finely crushed,and quartz granule in kaolin clay raw ore is almost the same. The method for finely crushing and dissociating minerals selectively with low cost has a washing rate of kaolin clay concentrated ore 38 to 42%, which is greatly higher than 25 to 28% in prior art, thereby utility ratio of the kaolin clay mineral resources is obviously improved.
Description
One, technical field
The present invention relates to the nonmetallic ore beneficiation method, particularly kaolin raw ore processing method.
Two, background technology
The technology that the ore dressing of present domestic kaolin raw ore is generally adopted is: the kaolin raw ore through oven dry, obtains drying kaolin concentrate product again through smashing slurry, hydraulic classiciation, concentrate, obtaining the kaolin mud cake after the press filtration processing.This processing technology relies on the rate of decay of kaolin raw ore to a great extent, and rate of decay is high more, and the yield of raw ore after eluriating is that washing rate of kaolin clay raw ore is just high more, and the kaolin concentrate product yield of selecting is just big more; Otherwise washing rate is just low more, and the kaolin concentrate product yield of selecting is also just low more.At present, when weathering type kaolin mine production granularity was 325 order kaolin concentrate products, washing rate of kaolin clay raw ore was about 28%; But decline along with the mining step; The rate of decay of kaolin raw ore more and more a little less than, washing rate of kaolin clay raw ore will be more and more lower, sometimes even be lower than 20%; Increase kaolinic ratio of concentration greatly, reduced the kaolin resource utilization rate.
Three, summary of the invention
When the purpose of this invention is to provide a kind of kaolin raw ore selecting and purchasing, thereby improve washing rate of kaolin clay raw ore to improve the method that kaolin concentrate recovery rate improves the kaolin resource utilization rate.
In order to reach above purpose; The present invention is a kind of to improve the processing step that the method for washing rate of kaolin clay raw ore adopts and be: kaolin raw ore machine treadle-operated tilt hammer for hulling rice is broken, smash slurry, hydraulic classiciation, concentrate, press filtration processing, be dried into kaolin concentrate product, and the fragmentation of machine treadle-operated tilt hammer for hulling rice makes that higher clay mineral kaolinite class and the mica group of value dissociated in small, broken bits in the kaolin raw ore.
The broken time of above-mentioned machine treadle-operated tilt hammer for hulling rice is 8 hours~10 hours.
Because the kaolin raw ore mainly is made up of with quartzy clay minerals such as kaolinite class and mica groups, wherein kaolinite class and mica group belong to the higher clay mineral of value; On the immanent structure pattern; Clay minerals such as kaolinite class and mica group are the characteristic that is embedding type structure between scale structure and the mineral; So to the broken means of kaolin raw ore elder generation employing machine treadle-operated tilt hammer for hulling rice; Can be worth higher clay mineral to raw ore and dissociate in small, broken bitsly, and quartzy its particle of reason high owing to hardness and self structure remains unchanged basically in the kaolin raw ore.This selective cheaply means of dissociating with mineral in small, broken bits have improved washing rate of kaolin clay raw ore greatly.
Said method also has simple to operate, and cost is low, is particularly suitable for the selecting and purchasing processing at the kaolin raw ore.
Four, the specific embodiment
Below in conjunction with the specific embodiment the present invention is further elaborated.
The present invention gathers as follows in a kind of concrete operations step of improving the method for washing rate of kaolin clay raw ore:
Kaolin raw ore machine treadle-operated tilt hammer for hulling rice is broken, smash slurry, hydraulic classiciation, concentrate, obtain obtaining kaolin concentrate product after kaolin mud cake, the oven dry after the press filtration processing.
Kaolin machine treadle-operated tilt hammer for hulling rice improves according to manual treadle-operated tilt hammer for hulling rice metric system powder process for powder among the people, and equipment partly is made up of transmission, treadle-operated tilt hammer for hulling rice head and treadle-operated tilt hammer for hulling rice groove three, adopts 26 treadle-operated tilt hammer for hulling rice composition machine treadle-operated tilt hammer for hulling rice groups; The treadle-operated tilt hammer for hulling rice groove is oval, uses the granite cutting; Through belt and major axis transmission, 26 treadle-operated tilt hammer for hulling rice heads are balancedly brought up to 90 centimetres of layouts to machine treadle-operated tilt hammer for hulling rice group successively by a 7.5KW motor.
During work, the treadle-operated tilt hammer for hulling rice groove center is fallen in the deadweight of treadle-operated tilt hammer for hulling rice head rest, and the kaolin with certain humidity can rise to opening part along the groove rear wall in treadle-operated tilt hammer for hulling rice head continuous operation process, falls groove center then automatically, forms continuous stirring effect.Kaolinite class and mica mineral crystal when the machine treadle-operated tilt hammer for hulling rice with interlayer structure receives impact, extruding and breaks and attenuate, when particle during carefully to micron grade appearance structure change.Thereby through the machine treadle-operated tilt hammer for hulling rice not only micron grade kaolin increase and improve washing rate, and the mineral crystal external form also improves with size distribution, thus raising plasticity.
Kaolin raw ore machine treadle-operated tilt hammer for hulling rice broken process is a raw material with Longyan kaolin raw ore (washing rate 25%~28%), and the kaolin raw ore of each treadle-operated tilt hammer for hulling rice dress 150Kg~160Kg, obtains the machine treadle-operated tilt hammer for hulling rice kaolin raw ore of 3900Kg~4160Kg at 9 hours machine treadle-operated tilt hammer for hulling rice time.
Through the processing of machine treadle-operated tilt hammer for hulling rice, dissociate valuable minerals such as kaolinite, sericite in the kaolin raw ore effectively, improved 325 order fine fraction content in the kaolin raw ore.Machine treadle-operated tilt hammer for hulling rice kaolin is taken a sample, is mixed and division, and through detecting, the 325 order kaolin concentrate washing rates that obtain are 38%~42%, are much higher than in the prior art 25%~28% washing rate.
Claims (2)
1. method that improves washing rate of kaolin clay raw ore; Its processing step comprise smash slurry, hydraulic classiciation, concentrate, press filtration processing and be dried into kaolin concentrate product; It is characterized in that: before smashing slurry, carry out the fragmentation of machine treadle-operated tilt hammer for hulling rice to the kaolin raw ore earlier, machine treadle-operated tilt hammer for hulling rice equipment partly is made up of transmission, treadle-operated tilt hammer for hulling rice head and treadle-operated tilt hammer for hulling rice groove three, and the treadle-operated tilt hammer for hulling rice groove center is fallen in the deadweight of treadle-operated tilt hammer for hulling rice head rest during work; Kaolin with certain humidity can rise to opening part along the groove rear wall in treadle-operated tilt hammer for hulling rice head continuous operation process; Automatically fall groove center then, form continuous stirring effect, make that higher kaolinite class and the mica group of value dissociated in small, broken bits in the kaolin raw ore.
2. according to the method for the said raising washing rate of kaolin clay raw ore of claim 1, it is characterized in that: the broken time of said machine treadle-operated tilt hammer for hulling rice is 8 hours~10 hours.
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CN200910111929A CN101585014B (en) | 2009-05-27 | 2009-05-27 | Method for improving washing rate of kaolin clay raw ore |
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CN200910111929A CN101585014B (en) | 2009-05-27 | 2009-05-27 | Method for improving washing rate of kaolin clay raw ore |
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CN101585014A CN101585014A (en) | 2009-11-25 |
CN101585014B true CN101585014B (en) | 2012-09-05 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102357400A (en) * | 2011-07-29 | 2012-02-22 | 合浦沪天高岭土有限责任公司 | Method for processing low-grade kaolinite ore |
CN104528747B (en) * | 2015-01-07 | 2017-02-22 | 西双版纳万祥矿业有限责任公司 | Method for improving recycling rate and whiteness of kaolin tailings |
CN107930825A (en) * | 2017-11-24 | 2018-04-20 | 龙岩高岭土股份有限公司 | A kind of method that separation colour developing mineral improve product quality from porcelain stone |
CN113716578B (en) * | 2021-09-15 | 2023-04-11 | 山西金宇科林科技有限公司 | Coal-series kaolin free quartz removing process |
Citations (6)
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DE4214771A1 (en) * | 1992-05-04 | 1993-11-11 | Netzsch Erich Holding | Rotary wet classification process for fine materials - comprising rotating bladed wheel arranged in rotating flow field which has outer region and inner region, useful in wet grinding circuits |
US5522924A (en) * | 1995-03-17 | 1996-06-04 | Ecc International Inc. | Method for producing high brightness low abrasion calcined kaolin pigment |
US6186335B1 (en) * | 1998-03-20 | 2001-02-13 | Thiele Kaolin Company | Process for beneficiating kaolin clays |
CN101099940A (en) * | 2007-07-25 | 2008-01-09 | 茂名市银华高岭土实业有限公司 | Kaolin high concentration ore dressing technology |
CN101255496A (en) * | 2008-03-18 | 2008-09-03 | 中国高岭土公司 | Method for synchronously reclaiming porcelain clay and rear earth from ionic adsorption type rear earth ore |
CN101423374A (en) * | 2008-11-18 | 2009-05-06 | 黄岳喜 | Method for preparing bone china mud |
-
2009
- 2009-05-27 CN CN200910111929A patent/CN101585014B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4214771A1 (en) * | 1992-05-04 | 1993-11-11 | Netzsch Erich Holding | Rotary wet classification process for fine materials - comprising rotating bladed wheel arranged in rotating flow field which has outer region and inner region, useful in wet grinding circuits |
US5522924A (en) * | 1995-03-17 | 1996-06-04 | Ecc International Inc. | Method for producing high brightness low abrasion calcined kaolin pigment |
US6186335B1 (en) * | 1998-03-20 | 2001-02-13 | Thiele Kaolin Company | Process for beneficiating kaolin clays |
CN101099940A (en) * | 2007-07-25 | 2008-01-09 | 茂名市银华高岭土实业有限公司 | Kaolin high concentration ore dressing technology |
CN101255496A (en) * | 2008-03-18 | 2008-09-03 | 中国高岭土公司 | Method for synchronously reclaiming porcelain clay and rear earth from ionic adsorption type rear earth ore |
CN101423374A (en) * | 2008-11-18 | 2009-05-06 | 黄岳喜 | Method for preparing bone china mud |
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Address after: 364000 No. 154-13, Deng Gao Road, Nancheng, Xinluo District, Longyan, Fujian Patentee after: Longyan kaolin Limited by Share Ltd Address before: 364000 No. 154-13, Deng Gao Road, Nancheng, Xinluo District, Longyan, Fujian Patentee before: Longyan Kaolin Clay Co., Ltd. |