CN102432124A - Process for comprehensively treating and recycling fluorite gangue water - Google Patents
Process for comprehensively treating and recycling fluorite gangue water Download PDFInfo
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- CN102432124A CN102432124A CN2011103445874A CN201110344587A CN102432124A CN 102432124 A CN102432124 A CN 102432124A CN 2011103445874 A CN2011103445874 A CN 2011103445874A CN 201110344587 A CN201110344587 A CN 201110344587A CN 102432124 A CN102432124 A CN 102432124A
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Abstract
The invention discloses a process for comprehensively treating and recycling fluorite gangue water. The process consists of a whirlcone classification step, an adjusting tank administration step, a mixed flocculation step, a high-speed sedimentation step, a flocculation body filter-press step, a dehydration step and a paste body discharging process step. Therefore, the problem of reduction in beneficiation indexes due to recycling of the gangue water to flotation processes is solved, and flotation environments are better improved; the problem of serious insufficiency of beneficiation production water is solved, and a receiving water body cannot be polluted; due to efficient recycling of waste heat, beneficiation cost is greatly reduced, fluorite concentrate grades are greatly improved, and economic benefits of enterprises are increased; and the process is particularly suitable for recycling the fluorite gangue water.
Description
Technical field:
The present invention relates to a kind of fluorite ore deposit tailings water comprehensive utilization process, be particularly useful for Chinese water shortage in north china area and carry out fluorite production, energy-saving and emission-reduction, the technology that the tailings water comprehensive treating process utilizes.
Background technology:
At present, domestic processing of fluorspar ores is in the problem that all exists aspect the tailings water comprehensive utilization in various degree, according to the regulation of GB8978-1996; The repeating utilization factor of processing of fluorspar ores tailings water should be greater than 90%, and still, certificate is investigation not exclusively; Grown place, northern at home fluorite mine, because processing of fluorspar ores tailings water basicity is high, silt content is big; Have water glass dispersion agent etc. again, cause the clarifying effect in mine tailing storehouse very poor, there is very big problem in the water quality in mine tailing storehouse; Part enterprise has also taked certain measure under the supervision of environmental protection function: (1) if direct reuse, water quality can not satisfy selects factory's requirement; (2) if efflux, then can bring three problems: 1. suspended substance causes severe contamination up to 6000mg/L to receiving water body; 2. because the most of lack of water of northern area, directly efflux and cause selecting station-service water nervous, have a strong impact on and select factory to produce; 3. the fluorite temperature is mostly at 35 ~ 45 ℃, and tailings water effluxes temperature also at 30 ~ 35 ℃, if directly efflux, then can cause thermal pollution to a certain degree to surrounding environment, simultaneously for selecting factory's production can cause the thermosteresis of certain degree.
Though there is part enterprise that tailings water is handled; But mostly only carrying out iron, aluminium and be common saline flocculating agents such as inorganic salt or calcium, magnesium, manganese salt makes suspended substance carry out sedimentation; But these methods are just simply handled tailings water; And there is this problem: 1. there is the unfavorable problem of effect mostly, the flocculation agent large usage quantity, cost is higher; 2. flocculate with common salts such as calcium, magnesium, have a large amount of calcium, mg ion among the processing in the mine tailing, be prone to during reuse cause activation, have a strong impact on the product grade quartz; 3. do not consider the comprehensive utilization of waste heat in the tail water, the waste heat waste.
Summary of the invention:
The object of the invention is exactly to select the processing of the high mud tailings water of generation in the fluorite process to carry out the research of system ensemble to low-grade, fluorite at present with the difficulty that quartzy symbiosis is tight, disseminated grain size is thin; A kind of reusing synthesized technology of fluorite tailings water of highly economical is provided; Thereby solve tailings water and be back to the problem that flotation flowsheet causes mineral processing index to descend, well improve the flotation environment; Simultaneously, solved the difficulty of ore dressing water of productive use wretched insufficiency, can not pollute environmental friendliness receiving water body; The efficient recovery waste heat greatly reduces beneficiation cost, improves the fluorite concentrate grade greatly, produces high-end product, enlarges enterprise product structure, increases the business economic benefit.
The objective of the invention is to realize like this: the reusing synthesized technology of a kind of fluorite tailings water is characterized in that it may further comprise the steps:
1) cyclone classification: by the tailings water process cyclone classification of scanning generation; Utilize swirler-with tailings and water sepn; Isolated tailings directly gets into tailing dam, and isolated overflow water gets into equalizing tank, require overflow granularity be-grade of 0.074mm accounts for 30-60%;
2) tail water adjustment: the isolating overflow water of swirler-gets into equalizing tank, simultaneously, adds suppressor factor, and it is mixed with tailings water, for guaranteeing mixing of medicament and water, the overflow water in the equalizing tank is flowed in the turbulent flow mixing tank mix;
3) mixed flocculation, high speed sedimentation
The blended overflow water enters into the efficient concentrating clarifying of solid-liquid separation pond in the turbulent flow mixing tank, through forcing flocculation plant, makes flco that suspended substance the forms sedimentation rapidly and efficiently in the overflow water; Reach the effect of mud-water separation; Underflow density can reach 60-65%, and the underflow that forms gets into press filteration system; Overflow water gets into the clear water Buffer Pool, selects factory's reuse;
4) flco press filtration, dehydration, lotion discharging
The settling pond underflow gets into pressure filter, carries out forced dehydration, and body refuse is gone into the mine tailing storehouse, and clear water gets into clean water basin, selects factory's reuse.
Above 4 technical process of the present invention are in indoor unified layout, and process procedure that current pass through has fully been avoided the thermosteresis of tailings water all indoor.
Suppressor factor is that mass percent concentration is that 5% Poly aluminum Chloride (PAC) and mass percent concentration are the anionic polyacrylamide of 0.01-0.03% in mixed flocculation of the present invention, the high speed sedimentation process; Being incorporated as of suppressor factor adds Poly aluminum Chloride (PAC) earlier, adds anionic polyacrylamide again.
Increase quick desliming technology after mixed flocculation of the present invention, the high speed sedimentation, thin mud effluxes through pressing the dehydration of mud machine after precipitating at a high speed, and primary water returns and selects factory's reuse once more.
The present invention compared with prior art has the following advantages:
Because adopted cyclone classification, equalizing tank dosing, mixed flocculation, high speed sedimentation, flco press filtration, dehydration, lotion discharge technology route, thereby:
(1) improves the product grade;
(2) be suitable for northern many mud, the higher fluorite ore deposit of degree of oxidation;
(3) simple, the flow process of technology is controlled easily, safeguards that running cost is lower;
(4) whole flow process realizes the discharging of mine tailing high density, reduces the security risk of tailing dam greatly;
(5) reaching the zero release of waste water, can practice thrift great lot of water resources, is that enterprise saves substantial contribution;
(6) the whole treatment schemees of tail water all indoor unified the layout, have fully been avoided the thermosteresis of tailings water, are fit to northern weather than cryogenic region.Institute's treating water reduces the heat cost that selects factory greatly directly into flow process.
Embodiment:
With scale 1500m
3/ d, suspended solid SS are 5000 ~ 8000mg/L, wherein CaF
2Be 100 ~ 1500 mg/L, pH:6 ~ 9 are example, and production technique is following:
1) cyclone classification: through cyclone classification, accomplish that through classification most of thick tailings directly gets into tailing dam to tailings by the tailings water of scanning generation, require overflow granularity be-the 0.074mm grade accounts for 45%.
2) tail water adjustment: equalizing tank is carried out in the swirler-overflow, simultaneously, adds Poly aluminum Chloride (PAC) at equalizing tank; Poly aluminum Chloride (PAC) is a mass percent concentration 5%; Press the measurement standard of 240mg/L and add, before tail water gets into the turbulent flow mixing tank, add anionic polyacrylamide, anionic polyacrylamide mass percent concentration 0.02%; Press the measurement standard of 35mg/L and add, tailings water gets into the turbulent flow mixing tank and carries out thorough mixing;
3) mixed flocculation, high speed sedimentation
In the efficient concentrating clarifying of solid-liquid separation pond,, make flco that suspended substance forms sedimentation rapidly and efficiently through special pressure flocculation plant; Reach the effect of mud-water separation, underflow density reaches 62%, the underflow that forms; Get into press filteration system, overflow water gets into the clear water Buffer Pool, selects factory's reuse.
4) flco press filtration, dehydration, lotion discharging
The settling pond underflow gets into pressure filter, carries out forced dehydration, and body refuse is gone into the mine tailing storehouse, and clear water gets into clean water basin, selects factory's reuse.
5) above 4 technical process are in indoor unified layout, and process procedure that current pass through has fully been avoided the thermosteresis of tailings water all indoor.
Treatment effect: produce clear water 1000m every day
3, cost: 0.8 yuan/ton, select factory's beneficiation cost to reduce by 5 yuan/ton.
Claims (5)
1. reusing synthesized technology of fluorite tailings water is characterized in that it may further comprise the steps:
1) cyclone classification: by the tailings water process cyclone classification of scanning generation; Utilize swirler-with tailings and water sepn; Isolated tailings directly gets into tailing dam, and isolated overflow water gets into equalizing tank, require overflow granularity be-grade of 0.074mm accounts for 30-60%;
2) tail water adjustment: the isolating overflow water of swirler-gets into equalizing tank, simultaneously, adds suppressor factor, and it is mixed with tailings water, for guaranteeing mixing of medicament and water, the overflow water in the equalizing tank is flowed in the turbulent flow mixing tank mix;
3) mixed flocculation, high speed sedimentation
The blended overflow water enters into the efficient concentrating clarifying of solid-liquid separation pond in the turbulent flow mixing tank, through forcing flocculation plant, makes flco that suspended substance the forms sedimentation rapidly and efficiently in the overflow water; Reach the effect of mud-water separation; Underflow density can reach 60-65%, and the underflow that forms gets into press filteration system; Overflow water gets into the clear water Buffer Pool, selects factory's reuse;
4) flco press filtration, dehydration, lotion discharging
The settling pond underflow gets into pressure filter, carries out forced dehydration, and body refuse is gone into the mine tailing storehouse, and clear water gets into clean water basin, selects factory's reuse.
2. the reusing synthesized technology of fluorite tailings water according to claim 1 is characterized in that above 4 technical process in indoor unified layout, and process procedure that current pass through has fully been avoided the thermosteresis of tailings water all indoor.
3. the reusing synthesized technology of fluorite tailings water according to claim 1 is characterized in that in mixed flocculation, high speed sedimentation process suppressor factor is that mass percent concentration is that 5% Poly aluminum Chloride (PAC) and mass percent concentration are the anionic polyacrylamide of 0.01-0.03%.
4. according to claim 1 or the reusing synthesized technology of 3 described fluorite tailings waters, it is characterized in that being incorporated as of suppressor factor adds Poly aluminum Chloride (PAC) earlier, adds anionic polyacrylamide again.
5. the reusing synthesized technology of fluorite tailings water according to claim 1; It is characterized in that also comprising quick desliming technology: increase quick desliming technology after mixed flocculation, the high speed sedimentation; Thin mud effluxes through pressing the dehydration of mud machine after precipitating at a high speed, and primary water returns and selects factory's reuse once more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103445874A CN102432124A (en) | 2011-11-04 | 2011-11-04 | Process for comprehensively treating and recycling fluorite gangue water |
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| CN2011103445874A CN102432124A (en) | 2011-11-04 | 2011-11-04 | Process for comprehensively treating and recycling fluorite gangue water |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755783A (en) * | 2012-07-15 | 2012-10-31 | 河南东大矿业股份有限公司 | Bauxite positive flotation desilicication tail ore pulp solid-liquid separation combined device |
| CN103058422A (en) * | 2013-01-29 | 2013-04-24 | 上海班德环保设备有限公司 | Technique for fluorite mine floatation sewage treatment |
| CN103253750A (en) * | 2013-05-23 | 2013-08-21 | 云南三明鑫疆矿业有限公司 | Recycling treatment technique of direct flotation concentrate and tailing wastewater of collophane |
| CN103899353A (en) * | 2014-04-22 | 2014-07-02 | 贵州晨辉达矿业工程设计有限公司 | Device and method for filling gobs with mine washing tailings |
| CN105032601A (en) * | 2015-06-29 | 2015-11-11 | 江西省莲花山矿产实业有限公司 | Tailing disposal method |
| CN105645734A (en) * | 2016-03-09 | 2016-06-08 | 旌德县圣裕莹石加工有限公司 | Sludge dewatering and circulating equipment for fluorite tail pulp treatment and application of sludge dewatering and circulating equipment |
| CN108815916A (en) * | 2018-05-21 | 2018-11-16 | 陈键锋 | A kind of stone pulp-water processing technique and processing equipment |
| CN109174471A (en) * | 2018-08-28 | 2019-01-11 | 北京矿冶科技集团有限公司 | A kind of automatically cleaning return water processing method |
| CN111995158A (en) * | 2020-08-12 | 2020-11-27 | 广东省科学院资源综合利用研究所 | Method for treating emulsified oil sludge-containing wastewater in gem processing industry |
| CN113152386A (en) * | 2021-02-04 | 2021-07-23 | 南昌工学院 | Cable crane grading damming system for wet stockpiling tailing pond and implementation method |
| CN115583752A (en) * | 2022-10-14 | 2023-01-10 | 武汉理工大学 | Method for treating fluorine-containing acidic wastewater in grading manner and recycling calcium fluoride resources |
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2011
- 2011-11-04 CN CN2011103445874A patent/CN102432124A/en active Pending
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| 孙玉伟等: "旋流器-澄清器分级浓缩工艺在尾矿浓缩工艺中的应用", 《矿业工程》 * |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102755783B (en) * | 2012-07-15 | 2014-01-29 | 河南东大矿业股份有限公司 | Bauxite positive flotation desilicication tail ore pulp solid-liquid separation combined device |
| CN102755783A (en) * | 2012-07-15 | 2012-10-31 | 河南东大矿业股份有限公司 | Bauxite positive flotation desilicication tail ore pulp solid-liquid separation combined device |
| CN103058422A (en) * | 2013-01-29 | 2013-04-24 | 上海班德环保设备有限公司 | Technique for fluorite mine floatation sewage treatment |
| CN103253750A (en) * | 2013-05-23 | 2013-08-21 | 云南三明鑫疆矿业有限公司 | Recycling treatment technique of direct flotation concentrate and tailing wastewater of collophane |
| CN103253750B (en) * | 2013-05-23 | 2014-07-02 | 云南三明鑫疆磷业股份有限公司 | Recycling treatment technique of direct flotation concentrate and tailing wastewater of collophane |
| CN103899353B (en) * | 2014-04-22 | 2016-09-21 | 贵阳铝镁设计研究院有限公司 | A kind of device and method of mine washing mine tailing bashing |
| CN103899353A (en) * | 2014-04-22 | 2014-07-02 | 贵州晨辉达矿业工程设计有限公司 | Device and method for filling gobs with mine washing tailings |
| CN105032601A (en) * | 2015-06-29 | 2015-11-11 | 江西省莲花山矿产实业有限公司 | Tailing disposal method |
| CN105645734A (en) * | 2016-03-09 | 2016-06-08 | 旌德县圣裕莹石加工有限公司 | Sludge dewatering and circulating equipment for fluorite tail pulp treatment and application of sludge dewatering and circulating equipment |
| CN108815916A (en) * | 2018-05-21 | 2018-11-16 | 陈键锋 | A kind of stone pulp-water processing technique and processing equipment |
| CN109174471A (en) * | 2018-08-28 | 2019-01-11 | 北京矿冶科技集团有限公司 | A kind of automatically cleaning return water processing method |
| CN111995158A (en) * | 2020-08-12 | 2020-11-27 | 广东省科学院资源综合利用研究所 | Method for treating emulsified oil sludge-containing wastewater in gem processing industry |
| CN113152386A (en) * | 2021-02-04 | 2021-07-23 | 南昌工学院 | Cable crane grading damming system for wet stockpiling tailing pond and implementation method |
| CN115583752A (en) * | 2022-10-14 | 2023-01-10 | 武汉理工大学 | Method for treating fluorine-containing acidic wastewater in grading manner and recycling calcium fluoride resources |
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Application publication date: 20120502 |