CN104829150A - Thickening method and thickening system of whole tailing material slurry paste - Google Patents
Thickening method and thickening system of whole tailing material slurry paste Download PDFInfo
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- CN104829150A CN104829150A CN201510096192.5A CN201510096192A CN104829150A CN 104829150 A CN104829150 A CN 104829150A CN 201510096192 A CN201510096192 A CN 201510096192A CN 104829150 A CN104829150 A CN 104829150A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses a thickening method and a thickening system of whole tailing material slurry paste, wherein the thickening method includes following steps: (1) feeding whole tailing material slurry into a cyclone machine to separate the whole tailing material slurry into crude granular mortar and fine granular mortar, wherein the crude granular mortar, at a bottom flow, is fed into a vibrating sieve while the fine granular mortar, at an over flow, is fed into a thickener; (2) in the vibrating sieve, vibrating the fine granular mortar to sieve the fine granular mortar and feeding the fine granular mortar into the thickener, wherein crude granules are discharged into a sand bin; (3) feeding an over flow in the cyclone machine into the thickener and feeding the bottom flow in the thickener into the sand bin; and (4) in the sand bin, mixing the crude granular mortar and the fine granular mortar to obtain the paste. The thickening system is composed of the cyclone machine, the vibrating sieve, the sand bin and the thickener, wherein a material slurry pipe is connected to input of the cyclone machine. Outputs of the cyclone machine include two groups, one is connected to the vibrating sieve and the other is connected to the thickener. The outputs of the vibrating sieve include two groups, one is connected to the thickener, and the other is connected to the tail sand bin. The output of the thickener is connected to the sand bin. In the invention, the tailing material slurry is separated into crude granular mortar and fine granular mortar and then is thickened, so that thickening concentration can reach 70-82%, which is higher than that of a deep-cone thickener and a sand bin by 2-5%. The tailing utilization rate is higher than 95%.
Description
Technical field
The present invention relates to tailings processing technology field, specifically refer to the method and system that a kind of full-tailing slurry lotion is dense.
Background technology
The main waste material that tailings discharges as mine solid waste, accounts for using industrial solid waste discharge than great.The major way of current disposal and utilization tailings is Tailings Dam discharge and underground filling.
During Tailings Dam discharge, the direct discharge of pipes of lower concentration tailing slurry generally selecting factory to produce is disposed to Tailings Dam to Tailings Dam or after thickener is dense, tailing slurry dewaters in Tailings Dam natural subsidence, backwater is delivered to and selects factory to continue to use, because this kind of mode tailing slurry concentration is lower, dehydrating amount is large, backwater conveying cost is higher, and still retain comparatively juicy after tailing slurry final dewatering and cannot deviate from, it is larger that tailing slurry takies Tailings Dam capacity, therefore the development of Tailings Dam draining technology forward lotion discharge both at home and abroad, namely to be disposed to Tailings Dam first dense to lotion state (not dewatering or few dewatering state) for tailing slurry, the discharge of tailings lotion discharge volume low concentration is little, Tailings Dam is substantially without the need to backwater, Safety of Tailings Dam improves.
Utilize tailing-filled, dense for the tailing slurry gelling material such as cement of adding to higher concentration are stirred or are directly delivered to worked-out section.Tailing-filledly require the dense rear concentration of tailing slurry to reach lotion state or close to lotion state, to guarantee that the filling slurry cement after preparing is not emanated, down-hole dehydrating amount is less.Simultaneously tailing-filled requirement wholegrain level of trying one's best utilizes, and avoiding fine fraction to be disposed to Tailings Dam cannot build a dam, and in Tailings Dam, dehydration difficulty, causes major safety risks.
Therefore, the dense technology of full-tailing slurry lotion is the core technology of the discharge of tailings lotion and crude tailings paste body filling.The dense method of current full-tailing slurry lotion mainly contains 3 kinds:
The first is undertaken dense by selecting the tailing slurry of factory to be delivered to common thickener, thickener underflow concentration generally reaches about 40%, deposition dehydrating is dense to greater concn to be again delivered to sand storehouse again, and the overflow of sand storehouse, containing part fine fraction, just can utilize after needing process further;
The second to select the tailing slurry of factory to be delivered to deep wimble thickener, by adding flocculation agent, and adopting the technical measures such as larger ratio of height to diameter, agitator arm, pressure-preventing rake, significantly being improved by deep wimble thickener underflow density.
The third carries out ceramic filter or filter-press dehydration process to the tailing slurry selecting factory to discharge or the tailing slurry after common thickener is dense, full-tailing slurry water ratio after dehydration is low, directly belt or vehicle can be delivered to Tailings Dam or the discharge of dry stockyard, and when being used as filling, generally need add water the pulp density being adjusted to and possessing certain pipeline transmission capacity.The waste water that ceramic filter or filter-press dehydration are deviate from needs further process just can utilize.
The first and second method mainly utilize deposition dehydrating principle, difference is that first method adopts common thickener and Sha Cang to carry out twice deposition dehydrating, overflow just can utilize after need processing, and second method utilizes flocculation agent Accelerated subsidence, utilize larger ratio of height to diameter warehouse, agitator arm destroys bottom slip water sand bonding state, and pressure-preventing rake measure impels sand storehouse high density settled layer to discharge slip smoothly, etc. technology, realize lotion and concentrate.The first is all unstable to the effect that crude tailings lotion is dense with second method, affect comparatively large by tailings nature difference, time as partially thin in tailings median size, the first concentration dense with second method cannot reach lotion proterties, dense concentration is on the low side, and first method effluent concentration is higher.During for underground filling, because second method is without the feed bin storing tailings lotion, by the impact selecting factory's activity duration.The third method adopts machinery to carry out solid-liquid separation to tailing slurry, but the waste water after being separated still needs process just can utilize, and dewatering efficiency is low, and energy consumption is large, and technique is complicated, and cost is high.The suitability of the third method to tailings character is poor, and when as higher in sulfur-bearing in full-tailing slurry or tailings median size is partially thin, ceramic filter hole is easily blocked, cannot use smoothly.The principles such as the dehydration of current tailings dense technology general natural subsidence, centrifugal settling dehydration, mechanical dehydration, these principles are all poor for the full-tailing slurry effect that silt content is larger.Swirler centrifugal settling principle and vibration dewatering Principle coordinate dense efficiency high, effective, but are only applicable to the lower tailings of silt content.
Summary of the invention
The object of the present invention is to provide a kind of applicable different tailings character, efficiency is high, energy consumption is little, and technique is simple, and cost is low, the method and system that the full-tailing slurry lotion that dense concentration is high is dense.
The method that full-tailing slurry lotion is dense, comprises the steps:
(1) full-tailing slurry will factory being selected to discharge, usual concentration is 20% or lower, be delivered to swirler, cyclone classification boundary is general lower, as-19 μm, higher to guarantee that coarse fraction tailing slurry accounts for the proportion of full-tailing slurry, full-tailing slurry is carried out classification and dense by swirler centrifugal settling, full-tailing slurry is divided into fine-grained tailing slurry and coarse fraction last mortar, dense coarse fraction last mortar simultaneously, the underflow of swirler be dense after coarse fraction last mortar, concentration is 65% or higher, complete dense for the first time, be disposed to vibratory screening apparatus, the concentration of swirler overflow fine-grained tailing slurry is generally below 5%, be delivered to thickener,
(2) after the underflow coarse fraction last mortar of swirler is disposed to vibratory screening apparatus, the vibration dehydration of vibratory screening apparatus, under water in coarse fraction last mortar and a small amount of fine particle are fallen sieve, it sieve is the coarse particles last mortar of dehydration further, now the concentration of coarse particles last mortar reaches 80% ~ 90%, directly enter in sand storehouse by vibrating, and sieve lower contain on a small quantity fine grain deviate from water, be delivered to thickener;
(3) swirler overflow fine-grained tailing slurry and vibratory screening apparatus are deviate from after water is delivered to thickener, thickener utilizes natural subsidence to carry out dense to fine particle tailing slurry, thickener underflow concentration is generally more than 35%, and in thickener underflow conveying sand storehouse, thickener overflow can directly utilize;
(4) swirler, vibratory screening apparatus, thickener almost carry out operation simultaneously, coarse particles tailing slurry and fine particle tailing slurry are almost disposed in tailings storehouse simultaneously, by the pressurized air of the compressed-air atomizer ejection of gathering at the bottom of sand storehouse, fine particle slip and coarse-particle slurry are mixed, reach lotion proterties, sand storehouse can be used as the storage warehouse of crude tailings lotion slip simultaneously, open bottom sand storehouse when starting placement operation or the discharge of tailings lotion and put sand valve, namely flow out crude tailings lotion slip.
For the system of the dense method of above-mentioned full-tailing slurry lotion, comprise a cluster cyclone, vibratory screening apparatus, sand storehouse and thickener, the input of a cluster cyclone connects full-tailing slurry, the output of a cluster cyclone is two groups, one group of input connecing vibratory screening apparatus, and another group connects thickener input, the output of vibratory screening apparatus is two groups, one group connects thickener input, and another group connects tailings storehouse, and thickener exports and connects tailings storehouse.
Described swirler can be a cluster cyclone.
Because full-tailing slurry is separated as thick tailing slurry and thin tailing slurry by a cluster cyclone by the present invention, dense respectively again, adopt a cluster cyclone that classification boundary line is less, thus the coarsely graded amount accounting for whole grade is larger, fine-graded account for smaller, the dense concentration of the higher then fine fraction of the dense rear concentration of coarse fraction is lower, the dense effect of crude tailings lotion can be realized after the mixing of thickness grade, coarse fraction silt content is few, swirler centrifugal settling principle and vibration dewatering Principle is adopted to carry out dense efficiency to coarse fraction tailings high, dense rear concentration is high, and equipment runs more reliable, fine fraction silt content is high, dense effect is poor, equipment operation failure rate is high to adopt centrifugal settling principle and vibration dewatering Principle to carry out, therefore fine particle dense employing thickener natural subsidence, deposition dehydrating, primary water can be obtained, have certain dense effect to fine fraction slip simultaneously, concentration without the need to too high, as long as and reach crude tailings lotion proterties after the dense rear slip mixing of coarse fraction.Dense concentration can adjust according to demand, the highest dense concentration, by physico mechanical characteristic differentia influences such as crude tailings particle diameters, the highest dense concentration can reach 70% ~ 82%, high 2 ~ 5 percentage points compared with the dense concentration in deep wimble thickener and sand storehouse, and native system tailings utilizing rate is more than 95%, system deviates from water, tailings content < 300ppm, can direct reuse.
Crude tailings silt content is general higher, therefore thick, fine-grained tailing separation are carried out dense, thick tailing slurry is dewatered through the vibration of vibratory screening apparatus, it is dense that thin tailing slurry utilizes natural subsidence principle to carry out through thickener, finally by the last mortar Homogeneous phase mixing after dense, higher, the dense better effects if of efficiency, cost is low, reliability of technology is high, task management is concentrated, simultaneously backwater can directly utilize.
The present invention is applicable to different properties tailings, and major equipment application of the present invention is ripe, and be the common equipment of current tailings process, be beneficial to and transform constructed item traditional technology, therefore promotional value is high.
Accompanying drawing explanation
Fig. 1 is the system construction drawing for the dense method of full-tailing slurry lotion.
Embodiment
With reference to Fig. 1, a kind of method that full-tailing slurry lotion is dense, can comprise the following steps:
(1) full-tailing slurry will factory being selected to discharge, usual concentration is 20% or lower, be delivered to Sha Cang top swirler 7, described swirler 7 gradational boundary is general lower, as-19 μm, higher to guarantee that coarse fraction tailing slurry accounts for the proportion of full-tailing slurry, swirler 7 is applied centrifugal settling and full-tailing slurry is carried out classification and dense, full-tailing slurry is divided into fine-grained tailing slurry and coarse fraction last mortar, dense coarse fraction last mortar simultaneously, the underflow of swirler 7 be dense after coarse fraction last mortar, concentration is 65% or higher, swirler overflow is fine-grained tailing slurry, concentration is below 5%, the underflow coarse fraction last mortar of swirler 7, complete dense for the first time, be disposed to vibratory screening apparatus 8, eddy flow 7 overflow fine-grained tailing is starched, thickener 2 is delivered to by pipe 5,
(2) after the underflow coarse fraction last mortar of swirler 7 is disposed to vibratory screening apparatus 8, dehydration is vibrated through vibratory screening apparatus 8, under water in coarse fraction last mortar and a small amount of fine particle are fallen sieve, it sieve is the coarse particles last mortar of dehydration further, now the concentration of coarse particles last mortar reaches 80 ~ 90%, directly to enter in sand storehouse 10 by pipe 9, and sieve lower contain on a small quantity fine grain deviate from water, be delivered to thickener 2 by pipe 4;
(3) swirler 7 overflow fine-grained tailing slurry and vibratory screening apparatus 8 are deviate from after water is delivered to thickener 2, thickener 2 natural subsidence is carried out dense to fine particle tailing slurry, thickener 2 underflow density is generally more than 35%, thickener 2 underflow is carried in sand storehouse 10 by pipe 3, and thickener 2 overflow can directly be utilized by overflow stream output tube 1;
(4) due to swirler 7, vibratory screening apparatus 8, thickener 2 almost carries out operation simultaneously, therefore coarse particles tailing slurry and fine particle tailing slurry are almost disposed in tailings storehouse 10 simultaneously, this simultaneously in thickener 2 underflow crude tailings partially fine particle be also delivered in tailings storehouse 10, the pressurized air that the compressed-air atomizer 11 gathered by the end, sand storehouse 10 is sprayed mixes fine particle slip and coarse-particle slurry, reach lotion proterties, sand 10 can be used as the storage warehouse of crude tailings lotion slip simultaneously, open bottom sand storehouse when starting placement operation or the discharge of tailings lotion and put sand valve 12, namely crude tailings lotion slip is flowed out.
For the system of the dense method of above-mentioned full-tailing slurry lotion, comprise swirler 7, vibratory screening apparatus 8, sand storehouse 10 and thickener 2, the input of swirler 7 connects full-tailing slurry pipe 6, the output of a cluster cyclone 7 is two groups, one group is coarse particles tailing slurry pipe, connect the input of vibratory screening apparatus 8, another group is fine particle tailing slurry pipe 5, connect thickener 2 to input, the output of vibratory screening apparatus 8 is two groups, and one group is that water pipe 4 deviate from by vibratory screening apparatus, connect thickener 2 to input, another group is coarse particles tailing slurry pipe 9, and connect tailings storehouse 10, thickener 2 underflow output tube 3 connects tailings storehouse 10.
Described swirler 7 can be a cluster cyclone.
Embodiment 1 native system is applied at certain metal mine, tailings-200 order content 48%, the full-tailing slurry of the concentration 20% of discharging selecting factory, be delivered to swirler, swirler generally selects small angular cone or many cone structures swirler, cyclone classification boundary is-19 μm, full-tailing slurry is divided into fine-grained tailing slurry and coarse fraction last mortar, the underflow of swirler be dense after coarse fraction last mortar, concentration is 65%, complete dense for the first time, be disposed to vibratory screening apparatus, vibratory screening apparatus adopts double-motor self-synchronous vibrator, close perforate sieve plate, swirler overflow fine-grained tailing is starched, concentration 3%, be delivered to thickener, shaker vibration is dewatered, under water in coarse fraction last mortar and a small amount of fine particle are fallen sieve, it sieve is the coarse particles last mortar of dehydration further, now the concentration of coarse particles last mortar reaches 86%, directly enter in sand storehouse by vibrating, and sieve lower contain on a small quantity fine grain deviate from water, be delivered to thickener, thickener utilizes natural subsidence principle to carry out dense to fine particle tailing slurry, and thickener underflow concentration is 38%, in thickener underflow conveying sand storehouse, the pressurized air of sand storehouse base compression air nozzle ejection mixes fine particle slip and coarse-particle slurry, and after mixing, concentration is 78%, reaches lotion proterties.
Certain mine crude tailings-200 order content 61% of embodiment 2, by concentration at the full-tailing slurry of 18%, be delivered to swirler, swirler generally selects small angular cone or many cone structures swirler, cyclone classification boundary is-10 μm, full-tailing slurry is divided into fine-grained tailing slurry and coarse fraction last mortar, the underflow of swirler be dense after coarse fraction last mortar, concentration is 60%, complete dense for the first time, be disposed to vibratory screening apparatus, swirler overflow fine-grained tailing is starched, and is delivered to thickener; Shaker vibration is dewatered, under water in coarse fraction last mortar and a small amount of fine particle are fallen sieve, it sieve is the coarse particles last mortar of dehydration further, now the concentration of coarse particles last mortar reaches 80%, directly enter in sand storehouse by vibrating, and sieve lower contain on a small quantity fine grain deviate from water, concentration about 2%, is delivered to thickener; Thickener coordinates flocculation agent, utilizes flocculating settling principle to carry out dense to fine particle tailing slurry, and thickener underflow concentration, 33%, is carried in sand storehouse; The pressurized air of sand storehouse base compression air nozzle ejection mixes fine particle slip and coarse-particle slurry, and after mixing, concentration is 73%, and reach lotion proterties, system deviates from water tailings content < 100ppm, directly selects station-service water.
Embodiment 3 native system is applied to Anhui iron ore, this ore deposit crude tailings-200 order content 70%, belong to inclined fine grain size tailings, factory is selected to discharge tailings concentration 18%, Pulp pump delivers to swirler, swirler generally selects small angular cone or many cone structures swirler, cyclone classification boundary is-19 μm, full-tailing slurry is divided into fine-grained tailing slurry and coarse fraction last mortar, the underflow of swirler be dense after coarse fraction last mortar, concentration is 65%, complete dense for the first time, be disposed to vibratory screening apparatus, vibratory screening apparatus adopts double-motor self-synchronous vibrator, close perforate sieve plate, swirler overflow fine-grained tailing is starched, be delivered to thickener, shaker vibration is dewatered, under water in coarse fraction last mortar and a small amount of fine particle are fallen sieve, it sieve is the coarse particles last mortar of dehydration further, now the concentration of coarse particles last mortar reaches 82%, directly enter in sand storehouse by vibrating, and sieve lower contain on a small quantity fine grain deviate from water, be delivered to thickener, thickener utilizes natural subsidence principle to carry out dense to fine particle tailing slurry, and thickener underflow concentration, 35%, is carried in sand storehouse, the pressurized air of sand storehouse base compression air nozzle ejection mixes fine particle slip and coarse-particle slurry, after mixing, concentration is 75%, reaches lotion proterties, for crude tailings lotion underground filling, system deviates from water tailings content < 250ppm, is directly used in and selects station-service water.The average daily tailings processing power 6000t/d of this system, stable, operation cost is lower.
Claims (3)
1. the method that full-tailing slurry lotion is dense, is characterized in that, comprises the steps:
(1) full-tailing slurry will factory being selected to discharge, usual concentration is 20% or lower, be delivered to swirler, cyclone classification boundary is general lower, as-19 μm, higher to guarantee that coarse fraction tailing slurry accounts for the proportion of full-tailing slurry, full-tailing slurry is carried out classification and dense by swirler centrifugal settling, full-tailing slurry is divided into fine-grained tailing slurry and coarse fraction last mortar, dense coarse fraction last mortar simultaneously, the underflow of swirler be dense after coarse fraction last mortar, concentration is 65% or higher, complete dense for the first time, be disposed to vibratory screening apparatus, the concentration of swirler overflow fine-grained tailing slurry is generally below 5%, be delivered to thickener,
(2) after the underflow coarse fraction last mortar of swirler is disposed to vibratory screening apparatus, shaker vibration is dewatered, under water in coarse fraction last mortar and a small amount of fine particle are fallen sieve, it sieve is the coarse particles last mortar of dehydration further, now the concentration of coarse particles last mortar reaches 80% ~ 90%, directly enter in sand storehouse by vibrating, and sieve lower contain on a small quantity fine grain deviate from water, be delivered to thickener;
(3) swirler overflow fine-grained tailing slurry and vibratory screening apparatus are deviate from after water is delivered to thickener, thickener natural subsidence is carried out dense to fine particle tailing slurry, thickener underflow concentration is generally more than 35%, and in thickener underflow conveying sand storehouse, thickener overflow can directly utilize;
(4) coarse particles tailing slurry and fine particle tailing slurry are disposed in tailings storehouse simultaneously, by the pressurized air of the compressed-air atomizer ejection of gathering at the bottom of sand storehouse, fine particle slip and coarse-particle slurry are mixed, open bottom sand storehouse when starting placement operation or the discharge of tailings lotion and put sand valve, namely flow out crude tailings lotion slip.
2. for the system of the dense method of above-mentioned full-tailing slurry lotion, comprise swirler, vibratory screening apparatus, sand storehouse and thickener, it is characterized in that, the input of swirler connects full-tailing slurry, and the output of swirler is two groups, one group of input connecing vibratory screening apparatus, another group connects thickener input, and the output of vibratory screening apparatus is two groups, and one group connects thickener input, another group connects tailings storehouse, and thickener exports and connects tailings storehouse.
3. as claimed in claim 2 for the system of the dense method of full-tailing slurry lotion, it is characterized in that, described swirler can be a cluster cyclone.
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| CN105107825A (en) * | 2015-09-12 | 2015-12-02 | 北京科技大学 | Preparation method of full-tailings paste |
| CN105464701A (en) * | 2015-10-27 | 2016-04-06 | 北京矿冶研究总院 | Super-capacity stable continuous filling system |
| CN105697060A (en) * | 2016-03-29 | 2016-06-22 | 中国恩菲工程技术有限公司 | Sand silo |
| CN106277880A (en) * | 2016-07-28 | 2017-01-04 | 武汉钢铁集团开圣科技有限责任公司 | A kind of preparation method of the thin tailings-sand filling material of wholegrain level |
| CN106869995A (en) * | 2017-04-11 | 2017-06-20 | 中蓝连海设计研究院 | A kind of flotation tailing Total tailing consolidated fill method |
| CN107762555A (en) * | 2017-10-18 | 2018-03-06 | 重庆大学 | A kind of dry sand preparation facilities and dry sand fill system |
| CN108561178A (en) * | 2018-06-22 | 2018-09-21 | 长沙矿山研究院有限责任公司 | Thick tailing-filled system and technique |
| CN109026142A (en) * | 2018-07-06 | 2018-12-18 | 中国中金科技股份有限公司 | A kind of placement method in the goaf for rock mass fracture growth |
| CN110292807A (en) * | 2018-03-22 | 2019-10-01 | 南京梅山冶金发展有限公司 | Superfine Tailing thickening dewatering process |
| CN110976067A (en) * | 2019-11-25 | 2020-04-10 | 金堆城钼业股份有限公司 | Process for dewatering concentrated sulfur pulp |
| CN112121471A (en) * | 2020-08-10 | 2020-12-25 | 长沙有色冶金设计研究院有限公司 | Method and system for determining optimal thickening mode of differential full tailings |
| CN114109487A (en) * | 2021-11-09 | 2022-03-01 | 北京科技大学 | Coarse fraction full tailing paste filling method |
| CN114179227A (en) * | 2021-11-30 | 2022-03-15 | 湖南有色金属研究院有限责任公司 | Tailing grading, recombining and repulping cemented filling equipment and process thereof |
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| CN105107825B (en) * | 2015-09-12 | 2017-09-26 | 北京科技大学 | A kind of crude tailings lotion preparation method |
| CN105107825A (en) * | 2015-09-12 | 2015-12-02 | 北京科技大学 | Preparation method of full-tailings paste |
| CN105464701A (en) * | 2015-10-27 | 2016-04-06 | 北京矿冶研究总院 | Super-capacity stable continuous filling system |
| CN105697060A (en) * | 2016-03-29 | 2016-06-22 | 中国恩菲工程技术有限公司 | Sand silo |
| CN106277880A (en) * | 2016-07-28 | 2017-01-04 | 武汉钢铁集团开圣科技有限责任公司 | A kind of preparation method of the thin tailings-sand filling material of wholegrain level |
| CN106277880B (en) * | 2016-07-28 | 2019-04-02 | 武汉钢铁集团开圣科技有限责任公司 | A kind of preparation method of the thin tailings-sand filling material of wholegrain grade |
| CN106869995A (en) * | 2017-04-11 | 2017-06-20 | 中蓝连海设计研究院 | A kind of flotation tailing Total tailing consolidated fill method |
| CN107762555A (en) * | 2017-10-18 | 2018-03-06 | 重庆大学 | A kind of dry sand preparation facilities and dry sand fill system |
| CN107762555B (en) * | 2017-10-18 | 2019-03-12 | 重庆大学 | A kind of dry sand preparation facilities and dry sand fill system |
| CN110292807A (en) * | 2018-03-22 | 2019-10-01 | 南京梅山冶金发展有限公司 | Superfine Tailing thickening dewatering process |
| CN108561178A (en) * | 2018-06-22 | 2018-09-21 | 长沙矿山研究院有限责任公司 | Thick tailing-filled system and technique |
| CN109026142A (en) * | 2018-07-06 | 2018-12-18 | 中国中金科技股份有限公司 | A kind of placement method in the goaf for rock mass fracture growth |
| CN110976067A (en) * | 2019-11-25 | 2020-04-10 | 金堆城钼业股份有限公司 | Process for dewatering concentrated sulfur pulp |
| CN112121471A (en) * | 2020-08-10 | 2020-12-25 | 长沙有色冶金设计研究院有限公司 | Method and system for determining optimal thickening mode of differential full tailings |
| CN112121471B (en) * | 2020-08-10 | 2021-10-12 | 长沙有色冶金设计研究院有限公司 | Method and system for determining optimal thickening mode of differential full tailings |
| CN114109487A (en) * | 2021-11-09 | 2022-03-01 | 北京科技大学 | Coarse fraction full tailing paste filling method |
| CN114179227A (en) * | 2021-11-30 | 2022-03-15 | 湖南有色金属研究院有限责任公司 | Tailing grading, recombining and repulping cemented filling equipment and process thereof |
| CN114179227B (en) * | 2021-11-30 | 2024-02-27 | 湖南有色金属研究院有限责任公司 | Tailing grading and reorganizing slurry reconstruction cemented filling equipment and technology thereof |
| CN114949943A (en) * | 2022-06-17 | 2022-08-30 | 紫金(长沙)工程技术有限公司 | Tailing concentrating system |
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