CN1202569A - High concentrate paste-filling technology and equipment in mine - Google Patents
High concentrate paste-filling technology and equipment in mine Download PDFInfo
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- CN1202569A CN1202569A CN 97112374 CN97112374A CN1202569A CN 1202569 A CN1202569 A CN 1202569A CN 97112374 CN97112374 CN 97112374 CN 97112374 A CN97112374 A CN 97112374A CN 1202569 A CN1202569 A CN 1202569A
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Abstract
The present invention relates to refilling of goaf in mine. The refilling technology is that tail sand of ore separating plants produced through dewatering, activation and mixing with adhesive into high concentrate or paste mortar, which is conveyed to and exhausted to form high- strength filling without separated free water and water-mortar separation. The equipment used includes sand bin with dewatering and fluidizing mechansim, stirrer and conveyer, and the fluidizing mechanism activates sand of 5 micron to 5 mm size sand and produces high-concentrate, 70-86%, or paste mortar. Using no expensive dewatering equipment, the present invention is simple and low in cost.
Description
The present invention is a kind of aftertreatment technology of mining, particularly relates to a kind of high concentration and paste body filling Processes and apparatus to the goaf that stays after the mining.
For a long time, great riches has been brought to people in the exploitation mine, but simultaneously, has also stayed various goafs, this goaf that is left such as untimely filling, the surrounding rock body avalanche be will cause, safety work and normal exploitation jeopardized, on the other hand, because a large amount of extraction barren rock, particularly beneficiation tailing if be deposited in the face of land, will cause environment pollution.
Filling in mine technology be a kind of can be with the activities in goaf in the backfill hole, barren rock processing back, its purpose guarantees Mine Safety in Production exactly, prevent that the face of land from subsideing and reduce environment pollution.Filling process comprises the processing and preparing of casting resin (as tailings, natural sand and barren rock) and carries two links.At present, filling in mine technology is based on hydraulic fill, be about to casting resin is prepared into a shaping type in Filling Station solid-liquid two-phase mortar, adopt pumping then, or the gravity flow mode of movement, goaf in pipe-line system is disposed to the hole, mortar dewaters voluntarily, drainage, becomes the obturation with certain intensity, supports and safeguard goaf rock mass on every side, prevent the rock mass avalanche, guarantee ordinary production.Because different mortar preparation technology and equipment are adopted in the mine, thereby the concentration difference of its mortar is very big.The low mortar of concentration in being delivered to the hole in the goaf afterwards a large amount of water need in time slough, and take in the water a large amount of sands and cement, increased the expense of hole internal drainage like this, cause the hole environment pollution, after cement runs off, the intensity of obturation will be reduced, therefore, in preparation during mortar, the mortar of making every effort to produce a kind of high concentration is total technology trends.
In the existing hydraulic fill technology, the mortar of preparation is three kinds of states, and according to the difference of the state of mortar, hydraulic fill technology also just divides three kinds into:
1), common hydraulic fill; Casting resin and cementing agent (cement) water is made mortar after evenly stirring, and its concentration is significantly less than its precipitation saturated concentration, generally below 70% (weight concentration), is disposed to goaf in the hole with pump or gravity flow mode of movement.The shortcoming of this technology is that a large amount of water need be sloughed the effluent cost height.Cement loss and segregation are serious, hole internal contamination influence production, and strength of filling mass significantly reduces because of the cement segregation.
2), high concentration filling; Casting resin and cementing agent water are made mortar after evenly stirring, and its concentration precipitates saturated concentration near it, generally between 70% to 75%, are disposed to goaf in the hole with pump or gravity flow mode of movement.Because pulp consistency height, the water of deviating from the hole are seldom, thereby, there are not cement and sand to run off, simultaneously, the mortar of high concentration does not cause the cement segregation, therefore, the corresponding raising of the intensity of obturation.
3), paste body filling: casting resin is prepared into the slurry of paste, is delivered to the goaf with pump or gravity flow mode of movement.The concentration of mortar is higher than its precipitation saturated concentration, generally between 76% and 86%.This kind paste mortar does not discharge Free water after being thrown in the hole, need not dewater, and does not have solid to run off and the environment pollution that causes, and the cement segregation phenomenon more can not take place, thereby the strength of filling mass height.
Because the goaf of adopting high concentration filling process and paste body filling technology to fill, loss, cement segregation that dehydration, cement and sand all do not occur etc. causes environment pollution, and the intensity of obturation improves relatively, thereby adopts in succession for the mine, various countries, and present main technique is divided into two classes:
1), last mortar filters and reproduces sizing process; Will be from the last mortar in ore dressing plant, about 30% (weight concentration) of concentration with the filter dehydration, made filter cake, water content about 15% in Filling Station, then filter cake is delivered in the mixer and to be added water with cement or other additives and stir, make the filling slurry of paste or high concentration.With compression pump or gravity system, goaf in the discharge of pipes hole.This process operation complexity, the capital investment height, the Filling Station floor space is big, the cost of production height.
2), after the last mortar filtering and concentrating with natural sand setting stirring technique; At first will be from the last mortar in ore dressing plant, concentration 30%, with filter dehydration or be concentrated into the mortar of 70% left and right sides concentration with concentration basin, enter mixer then, and add natural sand setting, and evenly stir, make lotion or high concentration mortar, with pump or gravity flow mode, be disposed to the goaf through pipe-line system.This process operation complexity, investment is big, cost of production is high.When particularly excavating natural sand and doing casting resin, will destroy the natural environment and the ecological homeostasis.
The purpose of this invention is to provide a kind of shortcoming that overcomes above-mentioned existing technology, utilize the fluidization operating principle to prepare the filling process in goaf in inserts filling high concentration or paste the hole.
Another object of the present invention provides the equipment of the above-mentioned filling process of a cover.
Filling process of the present invention comprises the last mortar of low concentration is mixed with bonding agent after making high concentration or paste last mortar through dehydration, activation, evenly stirs to being delivered to interior goaf, hole behind the filling mortar and discharges.
Described dehydration can comprise dewaters the low concentration last mortar from reprecipitation.
Described activation process can comprise the tailings of precipitation after the dehydration under the effect of fluid jet, become suspended state by the precipitation state; Described fluid can be air or water.The action principle of this activation process is: in the time of at the bottom of tailings is deposited on the storehouse, the common pressure of superincumbent tailings and hydrostatic is compacted down, because intergranular chucking power and adhesion stress make it can't displacement, has only the effect of outer power, promptly when the shearing force of external force surpassed the limit shearing force of tailings entity, tailings could move; That is to say, amass, be not in suspended state,, also can't emit although open sand storehouse bottom valve if do not adopt fluidization technology to make it activation in the tailings of bottom, sand storehouse; In the tailings fluid bed that is activated, the concentration of suspension mortar depends on the physical property and the fluidization parameter of tailings, and promptly the pressure of jet and flow velocity are controlled the fluidization parameter exactly, just can obtain desirable pulp consistency.In the last mortar activation process of filling process of the present invention, when fluid was air, its jet pressure was 0.2～2.5 MPa, and flow is 50～180 meters
3/ minute, the fluidization time is 0.5～2.0 hour, can prepare high concentration or paste mortar; When fluid was water, its jet pressure was 0.2～2.5 MPa, and effluxvelocity is 0.05～1 cel, and the fluidization time is 5～30 minutes, can prepare the high concentration mortar.
Bonding agent can be cement described in the filling process of the present invention, its addition, and promptly the weight ratio of cement in the mixture of tailings and cement is 2～5%, mixing time is 5～10 minutes.
Filling process of the present invention can also be included in the last mortar of low concentration and add flocculant, to quicken tailings settling rate and solid, moisture from speed, is preferably polyacrylamide, and consumption is 50～200 gram/ton tailings.
The prepared filling pulp consistency of filling process of the present invention is 70～86% (weight concentrations).
High concentration of the present invention and lotion filling in mine technology can also comprise that the tailings in the last mortar of low concentration can be classified tailings or the unassorted full tailings from the ore dressing plant; And the flow that enters the last mortar in sand storehouse can be 50～180 meters
3/ hour, it depends on that the disposal ability in ore dressing plant and operating process are continued operation or intermittently operated.
Course of conveying described in the filling process of the present invention is that mortar high concentration or paste that will make is transported to the process of cheating interior goaf, because mortar is dense, make mortar have higher initial shear power and bonding force, thereby when line transportation, the slurry stream dynamic resistance is very big, needs to adopt mechanical mode of movement; Darker when mine, and horizontal transport distance more in short-term, and the potential energy that can utilize slurry to form in induction system adopts the gravity flow mode of movement greater than the required resistance that overcomes of the whole pipe-line system of flowing through.
Described discharge process is meant the high concentration that is disposed to the goaf or paste mortar has good flowability, the goaf all can be full of, do not have Free water simultaneously and from slurry, separate out, thereby in the goaf, only need construct light-duty shelves wall and can satisfy the requirement that filling is isolated.
The equipment of the filling in mine technology of high concentration of the present invention and lotion comprises sand storehouse, mixer and induction system, described sand storehouse comprises warehouse, be positioned at the cylinder of sand storehouse center of top, be positioned at Sha Cang top along the overflow drench pit and the outfall of inwall setting, be positioned at overflow drench pit below and around the dehydration net and the draining header of the inwall setting of sand storehouse, be positioned at the fluidization equipment of Sha Cang bottom and be positioned at the vent valves of bottom, sand storehouse.
Induction system described in the equipment of filling process of the present invention can be selected the gravity flow mode according to the distance in goaf, the factors such as concentration of mortar, promptly only need just mortar to be disposed to the goaf through pipe-line system, or select mechanical mode of movement, promptly adopt high-head plunger displacement pump, and adopt the bigger pipeline of diameter that mortar is disposed to the goaf.
Be arranged on the cylinder of sand storehouse center of top described in the equipment of the present invention, make the last mortar of low concentration enter cylinder from above, diffuse to sand storehouse inwall from the cylinder bottom tapping, in this process, inject flocculant to cylinder, shoving when having avoided charging slowed down the diffusion flow velocity of mortar, thereby having improved the deposition efficiency of tailings, described cylinder is a steel work.
It is lower than external groove sidevall along the internal groove side wall of the overflow drench pit of inwall setting to be positioned at Sha Cang top described in the equipment of the present invention, and continuous feed and dehydration are carried out synchronously.
Describedly be positioned at overflow drench pit below and be that the clear water that is positioned at top, sand setting interface is discharged through the dehydration net immediately around the effect of the dehydration net of sand storehouse inwall setting, dehydration and charging can be carried out synchronously, shorten the dehydration concentration time, the mesh diameter of dehydration net is 50～100 microns, is discharged by the draining header that is installed in outside the storehouse through the water that the dehydration net is deviate from; The dehydration net can divide around the sand bulkhead and be arranged in order, or is one cylindric along inwall.
Described fluidization equipment in the Sha Cang bottom can be that the sand grains between 5 microns～5 millimeters activates under sedimentation state with particle diameter, it comprises the nozzle on circular endless tube and the pipe, the endless tube number is 1～4, size according to the endless tube center circle diameter sets gradually from top to bottom, the total number of nozzle is 20～100 on the pipe, and mounted angle is 0 °～45 ° (to the center of circle); Nozzle in use has not blocking characteristic, and reliable operation has obtained the U.S., Canadian Patent.This technology is with air-spray during with the tailings fluidization, and air sees through the intergranular space of tailings at the bottom of by the storehouse and upwards flows, and during to tailings slurry surperficial, with the bubble form ejection, makes in the storehouse tailings from bottom to top, whole fluidization; This process water jet is during with the tailings fluidization, and water sees through the intergranular space of tailings at the bottom of by logical sequence, makes tailings loosening, becomes free flowable slurry, and fluidization zone is only in bottom, sand storehouse, on the plasma discharge mouth, so be local fluidization.
The bottom in sand storehouse can be plane, taper or hemispherical described in the equipment of the present invention.
Can also be included in the equipment of the present invention and can be equipped with regularly nozzle clearing between described dehydration net and the sand storehouse inwall, air or water are sprayed by nozzle, cleaning floats over online sand grains, so that make the dehydration smoothly continuously of dehydration net, the expulsion pressure of air or water is 2～10 kilograms per centimeter
2
In sum, the filling in mine technology of high concentration of the present invention and lotion have can be rapidly with the last mortar dehydration of low concentration concentrate, can make deposition tailings activation in the sand storehouse, tailings at different levels all can be made high concentration or characteristics such as paste mortar, no Free water was deviate from after particularly made mortar was discharged into the goaf, the cement-free segregation phenomenon takes place, and can form high-intensity obturation; Adopt the used equipment of this technology to have characteristics such as scientific and reasonable, simple to operation, small investment, cost be low; because the fluidization process of the dehydration of last mortar is concentrated and deposition tailings all carries out in the sand storehouse; the investment and the energy consumption of expensive dehydration equipment have been saved; can on the basis of mine existing equipment, transform a little; can realize that the present invention all makes technology high concentration or that the paste mortar carries out filling with tailings at different levels; reach the purpose that reduces face of land tailings discharge volume, protection environment, also can bring remarkable economic efficiency and social benefit.
The present invention will be further described below in conjunction with drawings and Examples:
1 filling process schematic flow sheet of accompanying drawing;
Accompanying drawing 3 is the schematic diagram of dehydration net;
Accompanying drawing 4 is the fluidization equipment schematic diagram.
Label shown in the accompanying drawing 01 is the sand storehouse, and 02 is cement bin, and 03 is feeder, 04 is mixer, and 05 is pipeline (or boring), and 06 is dewatering system, 07 is fluo-solid system, and 1 is the last mortar charging, and 2 is cylinder, 3 are the overflow drench pit, and 4 is outfall, and 5 are the dehydration net, 6 is the header outfall, and 7 is the sand bulkhead, and 8 is circular endless tube, 9 is nozzle, and 10 are the plasma discharge valve, and 11 for cleaning nozzle.
As described in Figure, only be that 30% last mortar is pumped into the sand storehouse that is positioned at Filling Station by the ore dressing plant when concentration, the last mortar flow is at 150 meters
3/ hour, last mortar at first enters the cylinder that is positioned at sand storehouse center of top, diffuse to bulkhead by the cylinder bottom tapping then, the polyacrylamide flocculant that adds 100g/ ton tailings simultaneously to cylinder, shoving when having avoided charging like this, slowed down the diffusion flow velocity of mortar, thereby improved the settling efficiency of tailings, add tachy sterol, moisture from; Enter the tailings free settling immediately in sand storehouse; The clear water that is positioned at top, sand setting interface is discharged by outfall through the overflow drench pit, and part is concentrated by the draining header through the dehydration net and discharged, and dehydration and charging can be carried out synchronously like this, have shortened the dehydration concentration time; On the pairing bulkhead of dehydration net, regularly jet nozzle is installed, can stops up the dehydration mesh to prevent sand grains regularly to dehydration net injection air; Intergranular chucking power and adhesion stress at this moment, be deposited on the tailings in the sand storehouse, owing to even open sand storehouse bottom plasma discharge valve, also can't be discharged.Therefore must be with the activation of deposition tailings, i.e. fluidization makes its suspension, becomes could to emit smoothly behind the free-pouring slurry.Three groups of fluidization equipments of being made up of endless tube and nozzle are housed in the sand storehouse for this reason, are that 1 MPa, flow are 150 meters with jet pressure
3/ minute air be mode of jet ejection through nozzle, tailings is suspended, become high density slurry.The center circle diameter difference of above-mentioned three groups of endless tubes, the endless tube of diameter minimum are in the bottom, and the endless tube of diameter maximum is located at topmost, and the nozzle number on the endless tube is followed successively by 20,40,60 (with the ascending arrangements of endless tube center circle); Tailings is activated and after becoming high density slurry, open sand storehouse bottom plasma discharge valve, make it to enter mortar mixer, stirred 10 minutes with cement, the addition of cement is 3% (weight ratio of cement in the mixture of tailings and cement), mortar after stirring promptly becomes (weight concentration) paste inserts of 86%, because Filling Station is nearer apart from the goaf, so discharge in the goaf in pipeline can be delivered directly to the hole, light-duty shelves wall can be set in the goaf to satisfy the filling insulation request.
Adopt this technology can prepare good high concentration of mobile performance or paste mortar, technology and equipment are simple, and cost is low.Because the dehydration of last mortar concentrates and the fluidization process of deposition tailings all carries out in the sand storehouse, the investment and the energy consumption of expensive dehydration equipment have been saved, transform in the sand storehouse that only needs to have the mine now, dehydration and fluidization equipment are installed, can realize high concentration or paste body filling, saved capital investment like this, can be the mine and bring remarkable economic efficiency.For example: in Canada, if filter and reproduce sizing process with tailings, or with natural sand setting mixings stirring technique, about 1,200 ten thousand yuan (Canadian dollar) of its capital investment, if use this technology, capital investment 4,000,000 yuan (Canadian dollar) of need only then, the latter is the former 1/3.
Adopt this technology whole tailings in ore dressing plant can be made goaf in high concentration or the paste slurry placement hole; because not having Free water deviates from; make such obturation can contain a large amount of fine-grained tailing, thereby reduced the discharge volume of face of land tailings, help environmental protection.
Claims (11)
1, a kind of high concentration and lotion filling in mine technology is characterized in that the last mortar of low concentration is mixed with bonding agent after making high concentration or paste last mortar through dehydration, activation, evenly stir to being delivered to interior goaf, hole behind the filling mortar and discharge.
2, filling process as claimed in claim 1, it is characterized in that described activation process be with the tailings of precipitation after the dehydration under the effect of fluid jet, become suspended state by the precipitation state; Described fluid is air or water.
3, filling process as claimed in claim 2 is characterized in that when fluid is air its jet pressure is 0.2～2.5 MPa, and flow is 50～180 meters
3/ minute, the fluidization time is 0.5～2.0 hour; When fluid was water, its jet pressure was 0.2～2.5 MPa, and effluxvelocity is 0.05～1 cel, and the fluidization time is 5～30 minutes.
4, filling process as claimed in claim 1 is characterized in that described bonding agent is a cement, its addition, and promptly the weight ratio of cement in the mixture of tailings and cement is 2～5%, mixing time is 5～10 minutes.
5, filling process as claimed in claim 1 is characterized in that being included in the last mortar of low concentration and adds flocculant, is preferably polyacrylamide, and consumption is 50～200 gram/ton tailings.
6, filling process as claimed in claim 1 is characterized in that the tailings in the last mortar of low concentration is classified tailings or unassorted full tailings from the ore dressing plant.
7, as the high concentration and the lotion filling in mine technology device therefor of one of claim 1～6, it comprises sand storehouse, mixer and induction system, it is characterized in that described sand storehouse comprise warehouse, be positioned at sand storehouse center of top cylinder, be positioned at Sha Cang top along the overflow drench pit and the outfall of inwall setting, be positioned at overflow drench pit below and around the dehydration net and the draining header of the inwall setting of sand storehouse, be positioned at the fluidization equipment of Sha Cang bottom and be positioned at the vent valves of bottom, sand storehouse.
8, equipment as claimed in claim 7 is characterized in that described cylinder is a steel work; The external groove sidevall of described overflow drench pit is than internal groove side wall height; The mesh diameter of described dehydration net is 50～100 microns, and divides around the sand bulkhead and to be arranged in order or to be a cylinder along inwall.
9, equipment as claimed in claim 7, the fluidization equipment that it is characterized in that the described Sha Cang of being positioned at bottom comprises the nozzle on circular endless tube and the pipe, the endless tube number is 1～4, size according to the endless tube center circle diameter sets gradually from top to bottom, the total number of nozzle is 20～100 on the pipe, and mounted angle is 0 °～45 ° (to the center of circle).
10, equipment as claimed in claim 7 is characterized in that being included in and can be equipped with regularly nozzle clearing between described dehydration net and the sand storehouse inwall, and air or water are sprayed by nozzle, and the expulsion pressure of air or water is 2～10 kilograms per centimeter
2
11, equipment as claimed in claim 7 is characterized in that the bottom in described sand storehouse can be plane, taper or hemispherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112374 CN1202569A (en) | 1997-06-16 | 1997-06-16 | High concentrate paste-filling technology and equipment in mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97112374 CN1202569A (en) | 1997-06-16 | 1997-06-16 | High concentrate paste-filling technology and equipment in mine |
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| CN1202569A true CN1202569A (en) | 1998-12-23 |
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| CN 97112374 Pending CN1202569A (en) | 1997-06-16 | 1997-06-16 | High concentrate paste-filling technology and equipment in mine |
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Cited By (20)
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|---|---|---|---|---|
| CN101021161B (en) * | 2007-03-08 | 2010-09-01 | 高凤翔 | Method for backfilling goaf and supporting roof |
| CN102101763A (en) * | 2010-12-10 | 2011-06-22 | 天地科技股份有限公司 | Paste for mine goaf filling and preparation system of paste |
| CN101358536B (en) * | 2007-07-31 | 2011-06-22 | 中国恩菲工程技术有限公司 | Mine filling device |
| CN101451443B (en) * | 2007-11-28 | 2011-07-27 | 中国恩菲工程技术有限公司 | Control method and control device for controlling water addition to tailings |
| CN102155261A (en) * | 2011-03-08 | 2011-08-17 | 北京科技大学 | Paste combined filling method utilizing solid wastes of mine |
| CN102182923A (en) * | 2011-03-30 | 2011-09-14 | 陕西煎茶岭镍业有限公司 | Gravity-flow cemented filling method of high-length-to-column-ratio pipes |
| CN102442808A (en) * | 2010-10-15 | 2012-05-09 | 中国矿业大学(北京) | All tailing cementing and discharging technology |
| CN101358540B (en) * | 2007-07-31 | 2012-06-06 | 中国恩菲工程技术有限公司 | Sand warehouse for filling device |
| CN101451442B (en) * | 2007-11-28 | 2012-06-06 | 中国恩菲工程技术有限公司 | Control method and control device for controlling auxiliary material addition to tailings |
| CN101358534B (en) * | 2007-07-31 | 2012-12-26 | 中国恩菲工程技术有限公司 | Filling equipment in mined-out area |
| CN103867228A (en) * | 2014-04-03 | 2014-06-18 | 山东科技大学 | Tailing paste filling device |
| CN104005787A (en) * | 2014-04-01 | 2014-08-27 | 广东盛瑞土建科技发展有限公司 | Tailings concentration feeding method and device for implementing method |
| CN104929683A (en) * | 2015-06-16 | 2015-09-23 | 北京科技大学 | Total-tailings paste filling and stockpiling combined treatment method based on deep-cone thickener |
| CN105422171A (en) * | 2015-11-24 | 2016-03-23 | 长沙矿山研究院有限责任公司 | Method for improving seepage velocity and strength of micro-fine-particle tailing filling body |
| CN106150544A (en) * | 2016-08-03 | 2016-11-23 | 山东华联矿业股份有限公司 | Tradition sand storehouse is utilized to realize the new technology of all-tailing cemented filling |
| CN106939796A (en) * | 2017-05-03 | 2017-07-11 | 长沙矿山研究院有限责任公司 | The method and system that filling slurry fills underground goaf are prepared using efflorescent sand |
| CN108547659A (en) * | 2018-06-19 | 2018-09-18 | 长沙矿山研究院有限责任公司 | Tailing slurry filling system and technique |
| CN109779657A (en) * | 2019-01-08 | 2019-05-21 | 中铁二院工程集团有限责任公司 | Draining construction method for grouting reinforcement is driven in a kind of high-pressure water-enriched goaf group hole |
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Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021161B (en) * | 2007-03-08 | 2010-09-01 | 高凤翔 | Method for backfilling goaf and supporting roof |
| CN101358536B (en) * | 2007-07-31 | 2011-06-22 | 中国恩菲工程技术有限公司 | Mine filling device |
| CN101358540B (en) * | 2007-07-31 | 2012-06-06 | 中国恩菲工程技术有限公司 | Sand warehouse for filling device |
| CN101358534B (en) * | 2007-07-31 | 2012-12-26 | 中国恩菲工程技术有限公司 | Filling equipment in mined-out area |
| CN101451443B (en) * | 2007-11-28 | 2011-07-27 | 中国恩菲工程技术有限公司 | Control method and control device for controlling water addition to tailings |
| CN101451442B (en) * | 2007-11-28 | 2012-06-06 | 中国恩菲工程技术有限公司 | Control method and control device for controlling auxiliary material addition to tailings |
| CN102442808A (en) * | 2010-10-15 | 2012-05-09 | 中国矿业大学(北京) | All tailing cementing and discharging technology |
| CN102101763A (en) * | 2010-12-10 | 2011-06-22 | 天地科技股份有限公司 | Paste for mine goaf filling and preparation system of paste |
| CN102155261A (en) * | 2011-03-08 | 2011-08-17 | 北京科技大学 | Paste combined filling method utilizing solid wastes of mine |
| CN102182923A (en) * | 2011-03-30 | 2011-09-14 | 陕西煎茶岭镍业有限公司 | Gravity-flow cemented filling method of high-length-to-column-ratio pipes |
| CN102182923B (en) * | 2011-03-30 | 2013-01-23 | 陕西煎茶岭镍业有限公司 | Gravity-flow cemented filling method of high-length-to-column-ratio pipes |
| CN104005787A (en) * | 2014-04-01 | 2014-08-27 | 广东盛瑞土建科技发展有限公司 | Tailings concentration feeding method and device for implementing method |
| CN103867228B (en) * | 2014-04-03 | 2016-05-18 | 山东科技大学 | A kind of Tailing Paste Filling device |
| CN103867228A (en) * | 2014-04-03 | 2014-06-18 | 山东科技大学 | Tailing paste filling device |
| CN104929683A (en) * | 2015-06-16 | 2015-09-23 | 北京科技大学 | Total-tailings paste filling and stockpiling combined treatment method based on deep-cone thickener |
| CN104929683B (en) * | 2015-06-16 | 2017-02-01 | 北京科技大学 | Total-tailings paste filling and stockpiling combined treatment method based on deep-cone thickener |
| CN105422171B (en) * | 2015-11-24 | 2018-09-25 | 长沙矿山研究院有限责任公司 | A method of improving microfine tailings filling body seepage velocity and intensity |
| CN105422171A (en) * | 2015-11-24 | 2016-03-23 | 长沙矿山研究院有限责任公司 | Method for improving seepage velocity and strength of micro-fine-particle tailing filling body |
| CN106150544A (en) * | 2016-08-03 | 2016-11-23 | 山东华联矿业股份有限公司 | Tradition sand storehouse is utilized to realize the new technology of all-tailing cemented filling |
| CN106939796A (en) * | 2017-05-03 | 2017-07-11 | 长沙矿山研究院有限责任公司 | The method and system that filling slurry fills underground goaf are prepared using efflorescent sand |
| CN108547659A (en) * | 2018-06-19 | 2018-09-18 | 长沙矿山研究院有限责任公司 | Tailing slurry filling system and technique |
| CN109779657A (en) * | 2019-01-08 | 2019-05-21 | 中铁二院工程集团有限责任公司 | Draining construction method for grouting reinforcement is driven in a kind of high-pressure water-enriched goaf group hole |
| CN109779657B (en) * | 2019-01-08 | 2021-07-27 | 中铁二院工程集团有限责任公司 | High-pressure water-rich goaf group hole driving, draining, grouting and reinforcing construction method |
| CN111828088A (en) * | 2020-06-28 | 2020-10-27 | 铜陵有色股份安庆月山矿业有限公司 | Tailing sand filling sand silo device |
| RU2803951C1 (en) * | 2022-12-01 | 2023-09-22 | Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" | Liquid media activator |
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