CN101099940A - Kaolin high concentration ore dressing technology - Google Patents
Kaolin high concentration ore dressing technology Download PDFInfo
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- CN101099940A CN101099940A CNA2007100294823A CN200710029482A CN101099940A CN 101099940 A CN101099940 A CN 101099940A CN A2007100294823 A CNA2007100294823 A CN A2007100294823A CN 200710029482 A CN200710029482 A CN 200710029482A CN 101099940 A CN101099940 A CN 101099940A
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Abstract
The high concentration kaolin beneficiating process includes the following steps: providing raw kaolin ore; stirring and dispersing raw kaolin ore in the presence one water and dispersant while maintaining viscosity in 7.6-78.3 comprise; desanding the dispersed kaolin ore in a screw grader; elutriating desanding obtained coarse quartz sand in a secondary screw grader and a third screw grader; and returning the ore slurry from the secondary screw grader to the raw kaolin ore stirring and dispersing step and the ore slurry from the third screw grader to the secondary screw grader. The process can ensure the ore slurry concentration within 45-55 %, is favorable to kaolin beneficiating operation and post treatment, and has kaolin mineral resource recovering rate as high as 95 % and low water consumption.
Description
Technical field
The present invention relates to a kind of kaolinic processing method, is a kind of kaolin high concentration ore dressing technology specifically.
Background technology
Tradition exploitation chiltern kaolinite (soil) adopts the hydrodynamic cleaning mode to dig up mine, and the mining water use amount is bigger, and pulp density is low, and it is more to efflux the residual kaolinite of quartz sand.Kaolin raw ore pulp density is low, be unfavorable for that follow-up dressing process carries out deep processing, the pulp density of ore dressing is too high, the viscosity of ore pulp is excessive, be unfavorable for ore-dressing practice again, and it is more to efflux the residual kaolinite of quartz sand, is unfavorable for making full use of of kaolin mineral products resource, belongs to high energy consumption, inefficient technology.
Summary of the invention
But the purpose of this invention is to provide a kind of conserve water resource and the kaolin high concentration ore dressing technology that helps follow-up deep processing.
Kaolin high concentration ore dressing technology provided by the invention, it is realized by following step:
A, provide the kaolin raw ore;
B, under the condition that water and dispersant exist, the kaolin raw ore is carried out dispersed with stirring, make its viscosity maintain 7.6～78.3cps;
C, the former mining spiral classifier of kaolin after will disperseing carry out desanding to be handled.
In step b, the addition of dispersant is so that the kaolin raw ore pH value after disperseing maintains 6.5～7.0.
Described dispersant is made up of NaOH and calgon 1: 1.5 by weight ratio～2.5.
In step c, the thick quartz sand that desanding obtains after handling is eluriated processing through deuterostrophies grader and three grades of spiral classifiers more successively, wherein eluriate the ore pulp that obtains and return step b processing through the deuterostrophies grader, eluriate the ore pulp that obtains through three grades of spiral classifiers and return the deuterostrophies grader and handle, and thick quartz sand effluxes heap and fills out.
In step c, the pulp granularity≤74 μ m that obtain are handled in desanding.
The resulting ore pulp of step c can carry out thin desanding with the scraper plate machine to be handled.
The desanding of step c is handled, and promptly is the kaolin raw ore after disperseing is carried out preliminary desanding, and the kaolin that is easy to separate is separated rapidly with thick quartz sand becomes ore pulp, can avoid influencing operating efficiency and waste water resource like this.
Because the thick quartz sand that obtains after step c handles also is embedded with many kaolin in it, directly efflux and then make tailings grade higher, waste kaolin mineral products resource, therefore eluriate processing through deuterostrophies grader and three grades of spiral classifiers respectively again, in classification is eluriated, the kaolin that is embedded in the ore in sand form hole can both better be reclaimed.
Eluriate resulting low concentration ore pulp through the deuterostrophies grader and return step b, eluriate the low concentration ore pulp that obtains through three grades of spiral classifiers and return the processing of deuterostrophies grader, add entry through three grades of spiral classifiers and eluriate, water can be recycled in the elutriation process.At this moment, the visual concrete condition of step b, decision add water whether or add water what, as long as satisfy the described requirement of step b.
Traditional chiltern kaolin ore-dressing technique generally is to adopt excavator to excavate the kaolin raw ore is provided, and obtains ore pulp through the hydrodynamic cleaning mode, carries with kinetic pump again, and link is too much, and energy consumption is excessive, the mining cost height.Kaolin high concentration ore dressing technology of the present invention, the kaolin raw ore that collects directly carry out dispersion treatment without washing, can reduce processing step and link, reduce mining energy consumption and cost.
Traditional chiltern kaolin ore-dressing technique, the pulp density that obtains is low, generally has only 18～20%, pulp density is low, is unfavorable for that follow-up dressing process carries out deep processing, the pulp density of ore dressing too high (generally being to surpass 55%), the viscosity of ore pulp is excessive, is unfavorable for ore-dressing practice again.Kaolin high concentration ore dressing technology of the present invention, pulp density can guarantee that in 45～55% scope be highly advantageous to ore-dressing practice and follow-up dressing process carry out deep processing.
In addition, traditional chiltern kaolin ore-dressing technique, it is more to efflux the residual kaolinite of associated mineral quartz sand filled out of heap, tailings grade is higher, ore-bearing rate 〉=3%, kaolin mineral products resource fails to be fully used, and needs the quartz sand tailings grade lower, will adopt the bigger water yield to be used for scrubbing quartz sand, influence the concentration and the too much waste water resource of ore dressing then.Kaolin high concentration ore dressing technology of the present invention, the kaolin that is embedded in the ore in sand form hole can both better reclaim, efflux quartz sand ore-bearing rate≤0.1%, kaolin mineral products resource recovery is brought up to more than 95%, saved kaolin mineral products resource, and the water after eluriating can be recycled in the elutriation process, has reached the purpose of water-saving consumption-reduction, and thick quartz sand can in time be carried and effluxes.
Adopt kaolin high concentration ore dressing technology of the present invention, mechanization degree is higher, can reduce the labour, reduce operative employee's labour intensity.And energy resource consumption descends significantly, saved mining cost, improved under 30% situation in the mining ability, mineral products power consumption per ton is reduced to existing power consumption 6.87KWh by the electric 10.02KWh of former consumption, the power diesel consumption is reduced to 3.0 kilograms of existing consumption diesel oil by 6.579 kilograms of former consumptions, has saved mining cost.
Adopt kaolin high concentration ore dressing technology of the present invention, the mining water yield of whole selecting and purchasing is less, has protected groundwater resources effectively, has reduced a large amount of toxic emissions simultaneously, and this plays positive facilitation to preserving the ecological environment.
The present invention has remarkable economic efficiency and social benefit.
The specific embodiment
Embodiment:
A, according to grade of ore subregion, classification, gather the kaolin raw ore with the excavator classified excavation;
B, the kaolin raw ore is sent in the stirring pool, added entry, dispersant, stir, make its viscosity maintain 7.6～78.3cps.Wherein dispersant was made up of NaOH and calgon in 1: 2 by weight ratio, addition so that the kaolin raw ore pH value after disperseing maintain between 6.5～7.0;
C, the former mining spiral classifier of kaolin after will disperseing carry out desanding to be handled, control pulp granularity≤74 μ m, and resulting thick quartz sand is eluriated processing through deuterostrophies grader and three grades of spiral classifiers more successively, eluriating the ore pulp that obtains through the deuterostrophies grader returns among the step b, eluriate the ore pulp that obtains through three grades of spiral classifiers and return the processing of deuterostrophies grader, adding entry through three grades of spiral classifiers eluriates, water can be recycled in the elutriation process, and thick quartz sand effluxes heap and fills out.
Above-mentioned used spiral classifier (being the spiral sand removing machine): model FC-20,320 tons/day of production capacity, 3890 tons/day of sand return amounts, machinery Co., Ltd in the Tashan Mountain, Yantai City, Shandong Province makes.
Shown the situation that pulp density, viscosity change in the table 1; Shown the situation that pulp density, water consumption change in the table 2.
Table 1:
| Product design (%) | 20 | 30 | 35 | 40 | 45 | 50 | 55 | 57 | 60 |
| Ore pulp viscosity (cps) during stirring | 2 | 3.4 | 4.8 | 5.5 | 7.6 | 15.5 | 78.3 | 152 | 437 |
Table 2:
| Product design (%) | 20 | 30 | 35 | 40 | 45 | 50 | 55 | 57 | 60 |
| Product water consumption (m per ton 3) | 0.728 | 0.383 | 0.284 | 0.211 | 0.153 | 0.107 | 0.069 | 0.056 | 0.038 |
By table 1 as seen, ore pulp viscosity maintains 7.6～78.3cps when stirring, and product design can guarantee 45～55%;
By table 2 as seen, product design was at 45～55% o'clock, and the water consumption of product per ton is 0.069～0.153m
3
Table 3 the present invention and the contrast of existing technology
| Production capacity (in product) ton/sky | Mining methods | Separation method | Desanding method | Precipitation concentrates | Water consumption (cubic meter/ton product) | Product design (%) | The rate of recovery (%) | Tailings grade (%) | |
| Traditional handicraft | 380 | Wet method | Hydrodynamic cleaning | Manually | Need | 3.833 | 18～20 | 85 | 3～5 |
| The present invention | 500 | Dry method | Stir | The machinery desanding | Do not need | 0.153 | 45～55 | 95 | 0.1 |
By table 3 as seen, the present invention compared with prior art can reduce the labour, reduces mining cost, and it is low to efflux the quartz sand tailings grade, has remarkable economic efficiency and social benefit.
Claims (5)
1, kaolin high concentration ore dressing technology is characterized in that it is realized by following step:
A, provide the kaolin raw ore;
B, under the condition that water and dispersant exist, the kaolin raw ore is carried out dispersed with stirring, make its viscosity maintain 7.6～78.3cps;
C, the former mining spiral classifier of kaolin after will disperseing carry out desanding to be handled.
2, kaolin high concentration ore dressing technology according to claim 1 is characterized in that in step b, and the addition of dispersant is so that the kaolin raw ore pH value after disperseing maintains 6.5～7.0.
3, kaolin high concentration ore dressing technology according to claim 1 and 2 is characterized in that described dispersant is made up of NaOH and calgon 1: 1.5 by weight ratio～2.5.
4, kaolin high concentration ore dressing technology according to claim 1 is characterized in that in step c, and the pulp granularity≤74 μ m that obtain are handled in desanding.
5, kaolin high concentration ore dressing technology according to claim 1, it is characterized in that in step c, the thick quartz sand that desanding obtains after handling is eluriated processing through deuterostrophies grader and three grades of spiral classifiers more successively, wherein eluriate the ore pulp that obtains and return step b processing, eluriate the ore pulp that obtains through three grades of spiral classifiers and return the processing of deuterostrophies grader through the deuterostrophies grader.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100294823A CN101099940A (en) | 2007-07-25 | 2007-07-25 | Kaolin high concentration ore dressing technology |
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| CNA2007100294823A CN101099940A (en) | 2007-07-25 | 2007-07-25 | Kaolin high concentration ore dressing technology |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445249B (en) * | 2008-12-28 | 2010-09-01 | 梁明 | Method for bleaching high-concentration kaolin pulp |
| 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 |
| CN101585014B (en) * | 2009-05-27 | 2012-09-05 | 龙岩高岭土有限公司 | Method for improving washing rate of kaolin clay raw ore |
| CN103288331A (en) * | 2013-05-21 | 2013-09-11 | 华南理工大学 | Method for using kaolin tailings for preparing quartz sand for glass production |
| CN106076599A (en) * | 2016-05-30 | 2016-11-09 | 茂名市银华高岭土实业有限公司 | A kind of method of Kaolin desanding |
| CN106946265A (en) * | 2017-03-09 | 2017-07-14 | 兖矿北海高岭土有限公司 | A kind of kaolinic mill stripping method of Weathering-residual Type |
| CN106975562A (en) * | 2017-03-09 | 2017-07-25 | 兖矿北海高岭土有限公司 | A kind of kaolinic slurrying desanding method |
| CN113104864A (en) * | 2019-12-12 | 2021-07-13 | 林齐坤 | Treatment method of washing liquid in condensation section of reduced olive green T-T imine |
| CN113716578A (en) * | 2021-09-15 | 2021-11-30 | 山西金宇科林科技有限公司 | Process for removing free quartz from coal-series kaolin |
| CN114031091A (en) * | 2021-11-22 | 2022-02-11 | 泉州市利芝新材料科技有限公司 | Method for extracting kaolin by using machine-made sand tailings |
-
2007
- 2007-07-25 CN CNA2007100294823A patent/CN101099940A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445249B (en) * | 2008-12-28 | 2010-09-01 | 梁明 | Method for bleaching high-concentration kaolin pulp |
| CN101585014B (en) * | 2009-05-27 | 2012-09-05 | 龙岩高岭土有限公司 | Method for improving washing rate of kaolin clay raw ore |
| 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 |
| CN103288331A (en) * | 2013-05-21 | 2013-09-11 | 华南理工大学 | Method for using kaolin tailings for preparing quartz sand for glass production |
| CN103288331B (en) * | 2013-05-21 | 2015-07-01 | 华南理工大学 | Method for using kaolin tailings for preparing quartz sand for glass production |
| CN106076599A (en) * | 2016-05-30 | 2016-11-09 | 茂名市银华高岭土实业有限公司 | A kind of method of Kaolin desanding |
| CN106946265A (en) * | 2017-03-09 | 2017-07-14 | 兖矿北海高岭土有限公司 | A kind of kaolinic mill stripping method of Weathering-residual Type |
| CN106975562A (en) * | 2017-03-09 | 2017-07-25 | 兖矿北海高岭土有限公司 | A kind of kaolinic slurrying desanding method |
| CN113104864A (en) * | 2019-12-12 | 2021-07-13 | 林齐坤 | Treatment method of washing liquid in condensation section of reduced olive green T-T imine |
| CN113716578A (en) * | 2021-09-15 | 2021-11-30 | 山西金宇科林科技有限公司 | Process for removing free quartz from coal-series kaolin |
| CN114031091A (en) * | 2021-11-22 | 2022-02-11 | 泉州市利芝新材料科技有限公司 | Method for extracting kaolin by using machine-made sand tailings |
| CN114031091B (en) * | 2021-11-22 | 2023-10-20 | 泉州市利芝新材料科技有限公司 | Method for extracting kaolin by using machine-made sand tailings |
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Open date: 20080109 |