CN1067707A - High-water material cementing fill technology for metal mine - Google Patents
High-water material cementing fill technology for metal mine Download PDFInfo
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- CN1067707A CN1067707A CN 91103829 CN91103829A CN1067707A CN 1067707 A CN1067707 A CN 1067707A CN 91103829 CN91103829 CN 91103829 CN 91103829 A CN91103829 A CN 91103829A CN 1067707 A CN1067707 A CN 1067707A
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Abstract
The invention discloses material that a kind of metal mine utilization has high crystallization water quick solidifying performance and do that the low concentration of cementitious material is carried, stope non-dehydrated glue knot filling new technology.Belong to the Filling Technique in Metallic Mine field.Consolidated fill in the past uses cement to do cementitious material, low stope dehydration, the high difficulty of transportation of pulp density of needing of pulp density.New technology disclosed in this invention, the low concentration that can realize filling slurry are carried and the stope of this slip does not dewater and solidify.This cementitious material is made up of the first and second two kinds of basic materials, matches with full last mortar or classified tailings slurry, carries with two covers or the above system's slurrying of two covers respectively, and is charging into stope after the mixing near the stope.
Description
The invention discloses material that a kind of metal mine utilization has high crystallization water quick solidifying performance and do that the low concentration of cementitious material is carried, stope non-dehydrated glue knot filling new technology.This technology belongs to the Filling Technique in Metallic Mine field.
At present, both at home and abroad metal mine carries out consolidated fill and mainly is to use ordinary Portland cement or adds other admixtures of part and do the filling cementitious material.Ordinary Portland cement aquation institute water requirement is less, and this just makes that obturation could form intensity preferably when having only filling slurry concentration higher.Traditional also is to use more tailing fill method at present, usually make the filling slurry of 60-70% concentration and carry filling, this slip has a large amount of superfluous waters and need deviate to drain from stope, this just requires to use the coarse fraction tailings behind the graded desliming to do filling aggregate, to guarantee filling slurry good penetration performance.Such filling process classification, dewatering process are numerous and diverse, duty cycle is long, casting resin is longer time of setting, make the stope operating cycle prolong, stope production efficiency is low, mine production stope quantity is many, and factors such as filling slurry segregation, layering, race slurry make strength of filling mass not reach designing requirement sometimes, and the water of deviating from is mingled with cement mortar and pollutes subsurface environment.Dam body difficulty, dam body maintenance cost height are constructed in fine-grained tailing discharging after the classification.Doing filling aggregate with full tailings is the scientific research task that domestic and international relevant mine technology personnel and scientific research personnel extremely are concerned about, in recent years, both at home and abroad some mines are being made great efforts always that when carrying out tailing cemented filling the tailings pulp consistency is brought up to more than 70% what is called " high concentration " tailing cemented filling and are being obtained certain progress, but this " high concentration " tailing cemented filling, only be that the tailings utilization rate is improved, water unnecessary in the slip reduces, but still need to carry out a spot of dehydration drainage works at stope, face of land mortar slip is made difficulty, and comprehensive stowage capacity is difficult to improve.West Germany's Preussage metal company had begun full tailings pumping paste filling test in 1978, through in a few years making great efforts, had formed pump pressure filling new technology.Paste filling material no longer includes unnecessary water after being filled to stope basically.Pumping paste filling technology is used in some mines such as the U.S., South Africa in recent years, and these mine orebody buried depths are bigger, utilizes the high natural pressure head of deep-well to remedy the big defective of lotion conveyance conduit resistance.Full tailings pumping paste filling still is at present to be used and the initial stage of development, and technology and equipment are all not really ripe, casting resin prepare requiredly efficiently concentrate, dehydration equipment and carry the investment of the required pumping equipment of casting resin bigger.The enforcement period of the seventh five-year plan, China has also carried out the tackling key problem research of full tail sand cemented filling technique and equipment, has obtained certain progress, but has not also passed a test aspect the high concentration lotion delivery technology, and conveying capacity is low, easily plug-hole plugging, and underground filling body flat field, to connect the top difficult.Use non-lotion full-tailing slurry, dehydration difficulty in down-hole is difficult to realize that a large amount of continuously of filling slurry carry, and stowage capacity is restricted, and is difficult to satisfy the mine and produces needs.
Therefore, both can utilize the coarse fraction part in the classified tailings of mine, can utilize in full tailings in mine or the classified tailings fine fraction part as filling aggregate again, reaching filling slurry again carries easily, do not dewater in the down-hole, stowage capacity is big, and this domestic and international just metal mine consolidated fill presses for the problem of solution.
The objective of the invention is to design new filling process, this technology is in the metal mine consolidated fill, the material that utilization has a high crystallization water performance is done cementitious material and is partly or entirely replaced ordinary Portland cement, utilize various grades in full tailings mortar in mine or the tailings the classified tailings mortar in addition can water or last mortar in the water that contains thin mud that overflows, making the low concentration slip of being convenient to carry carries, stope need not dewater draining and condense into solid, thereby reach simplification technology, strengthen stowage capacity, the order ground of enhancing productivity.
The filling new technology that the present invention proposes is the using method of novel gelled material in the metal mine filling.This novel cementitious material is to be made of two kinds of basic materials of first, second, and wherein methyl plinth material is to be that primary raw material adds an amount of additive and makes by alumina cement or high-alumina refractory cement or high alumina cement or sulphoaluminate cement clinker or ferrous aluminate cement grog or fluoaluminate cement clinker; Wherein ethyl plinth material is to be made by natural anhydrite (or natural hard burnt plaster) and quicklime (or hydrated lime) admixture and the additive an amount of for primary raw material adds.The product of first, second two material is made respectively and is deposited, and has following technical performance, and first, second two material mix with the mortar of water or finite concentration scope respectively, and each can keep the long period (more than 6 hours) not solidify, to guarantee the good transportation performance of slip.After the first and second two kinds of base-materials mixed, its slip was the pulpous state of even suspension in the regular hour, have good mobile flat field performance thereby make slip enter stope.The mixed slurry that enters behind the stope condenses into solid in a few minutes in to several hours.In the slip condensation process, cementitious material combines with water, forms the material of high crystallization water structure.That is to say that mixed slip does not need to dewater just, and condensable becomes solid.The first and second two kinds of basic materials are not done cementitious material separately and are used.Utilize the high crystallization water performance of cementitious material, realize that the low concentration of filling slurry carries stope not dewater.Owing to do not need the stope dehydration, then can not consider the permeability problems of filling slurry, so both can use the coarse fraction part of classified tailings, can utilize the fine fraction part of full tailings or classified tailings again.Earlier tailings is prepared into the mortar of desired concn, then by the whole bag of tricks cementitious material is joined in the mortar again.Implement the scheme of mixing of the first and second two kinds of basic materials of the used mortar of new technology and cementitious material, it is characterized in that:
(1) last mortar for preparing is divided into two parts, import two cover pulping systems respectively, add first material and second material respectively, make weight ratio concentration and be the first and second two kinds of slips of 15-70%, utilize two cover induction systems that two kinds of slips are transported near the stope, after by hybrid system two kinds of slips being mixed near the stope, charge into stope.
(2) to be prepared into weight ratio concentration be 15-70% concentration to last mortar, be delivered directly near the stope, the first and second two kinds of basic materials are made the slip that weight ratio concentration is 15-70% concentration separately respectively, two kinds of slips are transported to respectively near the stope, charge into stope after near the stope three kinds of slurries being mixed.
(3) first (or second) material one of in the mortar for preparing and the first and second two kinds of materials is made the slip that weight ratio concentration is 15-70%, another kind of second (or first) material list of first and second material is solely made the slip that weight ratio concentration is 15-70% with water, and two kinds of slips are transported near the stope and charge into stope after the mixing.
(4) first (or second) material one of in the mortar for preparing and first and second material being made weight ratio concentration is that the slip of 15-70% is transported to stope, utilizes to press wind that another kind of second (or first) material in first and second material is joined near slip enters the conveyance conduit exit of stope to charge into stope in the slip.
(5) with the first and second two kinds of basic materials separately respectively with water or last mortar in the water that has thin mud of overflow make the slip that weight ratio concentration is 15-70%, two kinds of slips charge into stope after being transported to respectively near the stope and will two kinds of slips mixing.
According to various on-the-spot actual conditionses and different requirements, in the mortar preparation process, charge into the stope process after slip manufacture process, course of conveying, mixed process, the mixing, can add except that tailings and the first and second two kinds of basic materials a kind or multiple admixture or additive (as Portland cement, flyash, pozzolan, river sand, frosted, limestone, swell soil, Na
2CO
3, NaCl, citric acid etc.), with the early strong and performance steady in a long-term of suspendability, mobile performance, transportation performance, retarding performance, rapid hardening performance, obturation of regulating slip.
Technological process of the present invention mainly is: mortar manufacturing system-slip manufacturing system-induction system-hybrid system-stope.Embodiment divides five kinds to be illustrated with five width of cloth figure respectively.
Figure one makes slip with the first and second two kinds of basic materials respectively for mortar being divided into two parts, carries respectively, charges into the process chart of stope after mixing near the stope.
Figure two carries separately for mortar, and the first and second two kinds of slips are also carried separately separately, charge into the process chart of stope after mixing near the stope.
Figure three is mixed and made into slip for mortar and one of the first and second two kinds of basic materials, and another kind of material water is made slip, is transported near the process chart that charges into stope the stope after the mixing.
Figure four is transported to stope for mortar is mixed and made into slip with one of the first and second two kinds of basic materials, with pressure wind another kind of material is sneaked into process chart in the slip in the conveyance conduit exit.
Figure five be the first and second two kinds of basic materials respectively with water or last mortar in the water that has thin mud of overflow make slip, carry respectively, after mixing near the stope, charge into the process chart of stope.
Only show the major part of filling process in the flow chart, need the facilities such as design discharge meter, densimeter in some link, induction system can be pumping, it also can be gravity flow, at links, can reach as the case may be requirement, determine to add or do not add other admixtures or additive.
The present invention compared with prior art, the new technology utilization has the material of high crystallization water quick solidifying performance and does Binder Materials, filling slurry change in concentration scope is big, easily realize pumping and gravity flow conveying, and realize that easily big ability carries, easily satisfy the filling in mine demand, dehydration in stope need not be carried out in the down-hole, saves stope drainage facility, simplifies technology, save the drainage expense, improve working environment at coal mines, both can utilize the coarse fraction part of classified tailings, also can utilize in full tailings or the tailings fine fraction partly to do filling aggregate, save and replenish the frosted investment, slow down the tailings dam and construct difficult in maintenance. The low concentration slip is easy to the flat field that flows in stope, be easy to realize that obturation connects the top.
Enforcement of the present invention, possessed ripe condition in China, Binder Materials with high crystallization water quick solidifying performance has been waited by doctor Sun Henghu of Beijing Post-graduate Dept., China Mining Univ and has studied successfully just like " Gao Shui tachy sterol filler ", transfer to Tianjin special cement factory and Qingdao Percentage of Water Rapid Solidifying Material factory etc. and realized batch production production, and the batch supply the market. Product first and second bi-materials that dispatch from the factory at present are packaged into respectively one bag of 50Kg. Abundant raw materials, the distribution of producing this material in China are wide. Carry out filling with the low concentration slip, Processes and apparatus is on the existing ripe basis of China. Certainly, to concrete conditions such as the tailings composition that had by different mines and water quality, need the preparation of the first and second two kinds of basic materials is suitably adjusted, or add suitable additive in certain link of process system.
Filling new technology proposed by the invention has multiple embodiments, illustrates the method that practices of the present invention below in conjunction with two embodiments.
Embodiment 1: in the sand storehouse full tailings being made weight ratio concentration is 35% mortar, by flow meter, densimeter, three way cock mortar is divided into equal two parts and imports in two vane type agitators, press wind to be input in two agitators by the impact type batchmeter respectively the material use in the first and second two basic material feed bins and stir with mortar that to make weight ratio concentration be 45% slip.By slush pump or gravity flow slip is transported near the stope, charges into stope after by helical mixer two kinds of slips being mixed.The addition of two kinds of basic materials is by weight respectively accounting for 7% of final filling slurry respectively.(can with reference to figure one)
Embodiment 2: tailings made weight ratio concentration in the sand storehouse and be 43% mortar, import in the vane type agitator by flow meter, densimeter, press wind to be input in the vane type agitator material use in the first material feed bin, make weight ratio concentration and be 48% first slip by the impact type batchmeter.Pressing wind to be input to by the impact type batchmeter material use in the second material feed bin adds water to make weight ratio concentration is 25% second slip in another vane type agitator, two kinds of slips by slush pump by the first slip: the second slip is that 3: 1 part by weight is transported near the stope, charges into stope after mixing by spiral mixing plant.(can with reference to figure three)
Claims (8)
1, metal mine cementing fill technology, it is characterized in that: the utilization of filling new technology has the material of high crystallization water quick solidifying performance and does capsule material, be mixed with the slip that weight ratio concentration is 15-70% with the classified tailings mortar or the water of various grades in full tailings mortar in mine or the tailings, slip is to carry under the situation of 15-70% in weight ratio concentration, realizes that filling slurry is a solid in the stope just condensable of need not dewatering.
2, according to claim 1, the metal mine cementing fill technology is characterized in that: the cementitious material with high crystallization water quick solidifying performance that the filling new technology is utilized is made up of two kinds of basic materials of first, second.Two kinds of basic materials of this first, second are not done cementitious material separately and are used.Wherein methyl plinth material is to be that primary raw material adds an amount of additive and makes by alumina cement or high-alumina refractory cement or high alumina cement or sulphoaluminate cement clinker or ferrous aluminate cement grog or fluoaluminate cement clinker; Wherein ethyl plinth material is to be made by natural anhydrite (or natural hard burnt plaster) and quicklime (or hydrated lime) admixture and the additive an amount of for primary raw material adds.
3, according to claim 1,2, implement the scheme of metal mine cementing fill technology, it is characterized in that: the last mortar for preparing is divided into two parts, import two cover pulping systems respectively, add first material and second material respectively, make weight ratio concentration and be the first and second two kinds of slips of 15-70%, utilize two cover induction systems that two kinds of slips are transported near the stope, after by hybrid system two kinds of slips being mixed near the stope, charge into stope.
4, according to claim 1,2, implement the scheme of metal mine cementing fill technology, it is characterized in that: last mortar is prepared into the mortar that weight ratio concentration is 15-70%, be delivered directly near the stope, the first and second two kinds of basic materials are made the slip that weight ratio concentration is 15-70% separately respectively, two kinds of slips are transported to respectively near the stope, charge into stope after near the stope three kinds of slurries being mixed.
5, according to claim 1,2, implement the scheme of metal mine gelling filling new technology, it is characterized in that: first (or second) material one of in the mortar for preparing and first and second material is made the slip that weight ratio concentration is 15-70%, another kind of second (or first) material list of first and second material is solely made the slip that weight ratio concentration is 15-70% with water, and two kinds of slips are transported to respectively near the stope and charge into stope after the mixing.
6, according to claim 1,2, implement the scheme of metal mine cementing fill technology, it is characterized in that: the slip of first (or second) material one of in the mortar for preparing and first and second material being made weight ratio concentration 15-70% is carried to stope, utilizes to press wind that another kind of second (or first) material of first and second material is joined near slip is sent to the conveyance conduit exit of stope to charge into stope after mixing in the slip.
7, according to claim 1,2, implement the scheme of metal mine cementing fill technology, it is characterized in that: with the first and second two kinds of basic materials separately respectively with water or last mortar in the water that has thin mud of overflow make the slip that weight ratio concentration is 15-70%, two kinds of slips are transported to respectively near the stope, charge into stope after two kinds of slips mix near the stope.
8, according to claim 1,2,3,4,5,6,7, after mortar preparation process, slip preparation process, course of conveying, mixed process, mixing, charge into the stope process, can add a kind or some kinds of admixtures or additive, it is characterized in that: this a kind of or some kinds of admixture or additive are (as Portland cement, flyash, pozzolan, river sand, frosted, limestone, swell soil, Na
2CO
3, NaCl, citric acid etc.) can regulate slip suspendability, mobile performance, transportation performance, retarding performance, rapid hardening performance, obturation morning by force and performance steady in a long-term.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103829 CN1025357C (en) | 1991-06-12 | 1991-06-12 | High-water material cementing fill technology for metal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103829 CN1025357C (en) | 1991-06-12 | 1991-06-12 | High-water material cementing fill technology for metal mine |
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| Publication Number | Publication Date |
|---|---|
| CN1067707A true CN1067707A (en) | 1993-01-06 |
| CN1025357C CN1025357C (en) | 1994-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91103829 Expired - Fee Related CN1025357C (en) | 1991-06-12 | 1991-06-12 | High-water material cementing fill technology for metal mine |
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| Country | Link |
|---|---|
| CN (1) | CN1025357C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6428107B1 (en) | 2000-11-28 | 2002-08-06 | Inco Limited | Heat added to underground cemented fill to obtain both early and long term strength increases |
| CN102093009A (en) * | 2010-11-26 | 2011-06-15 | 北京科技大学 | Full-tail paste composite material and preparation method thereof |
| CN101691291B (en) * | 2009-09-29 | 2011-10-12 | 北京科技大学 | Method for producing pasty unclassified tailing filling materials containing red mud |
| CN103352722A (en) * | 2013-07-24 | 2013-10-16 | 山东理工大学 | Cemented filling close to back processing technology for goaf at barren rock filling background |
| CN104230276A (en) * | 2014-09-09 | 2014-12-24 | 河北充填采矿技术有限公司 | High-moisture-ratio quick-setting filling material as well as preparation method and use method thereof |
| CN105198329A (en) * | 2014-06-18 | 2015-12-30 | 阳泉市高星建材外加剂有限公司 | High-water-content filling material and preparation method and using method thereof |
| CN108005718A (en) * | 2017-12-18 | 2018-05-08 | 固岩科技发展有限公司 | A kind of metal mine consolidated fill method |
| CN114294052A (en) * | 2022-01-04 | 2022-04-08 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Method for improving conveying performance of high-concentration superfine tailing slurry of mine |
-
1991
- 1991-06-12 CN CN 91103829 patent/CN1025357C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6428107B1 (en) | 2000-11-28 | 2002-08-06 | Inco Limited | Heat added to underground cemented fill to obtain both early and long term strength increases |
| CN101691291B (en) * | 2009-09-29 | 2011-10-12 | 北京科技大学 | Method for producing pasty unclassified tailing filling materials containing red mud |
| CN102093009A (en) * | 2010-11-26 | 2011-06-15 | 北京科技大学 | Full-tail paste composite material and preparation method thereof |
| CN103352722A (en) * | 2013-07-24 | 2013-10-16 | 山东理工大学 | Cemented filling close to back processing technology for goaf at barren rock filling background |
| CN105198329A (en) * | 2014-06-18 | 2015-12-30 | 阳泉市高星建材外加剂有限公司 | High-water-content filling material and preparation method and using method thereof |
| CN105198329B (en) * | 2014-06-18 | 2017-09-22 | 阳泉市高星建材外加剂有限公司 | A kind of high water packing material and preparation method thereof and application method |
| CN104230276A (en) * | 2014-09-09 | 2014-12-24 | 河北充填采矿技术有限公司 | High-moisture-ratio quick-setting filling material as well as preparation method and use method thereof |
| CN108005718A (en) * | 2017-12-18 | 2018-05-08 | 固岩科技发展有限公司 | A kind of metal mine consolidated fill method |
| CN114294052A (en) * | 2022-01-04 | 2022-04-08 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Method for improving conveying performance of high-concentration superfine tailing slurry of mine |
| CN114294052B (en) * | 2022-01-04 | 2024-03-22 | 山东黄金矿业科技有限公司充填工程实验室分公司 | Method for improving conveying performance of mine high-concentration superfine tailing slurry |
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| Publication number | Publication date |
|---|---|
| CN1025357C (en) | 1994-07-06 |
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