CN1521388A - Process and equipment for preparing and discharging high concentration and plaster mortar - Google Patents
Process and equipment for preparing and discharging high concentration and plaster mortar Download PDFInfo
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- CN1521388A CN1521388A CNA031018963A CN03101896A CN1521388A CN 1521388 A CN1521388 A CN 1521388A CN A031018963 A CNA031018963 A CN A031018963A CN 03101896 A CN03101896 A CN 03101896A CN 1521388 A CN1521388 A CN 1521388A
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Abstract
The present invention relates to the production and exhaust of high concentration or paste mortar. The production and exhaust process includes depositing and dewatering low concentration tail mortar in mortar bin; concentrating to make mortar release free water with sprayed airflow, deposition, densifying and concreting; activating the concentrated tail mortar with jetted airflow or water flow to produce high concentration or paste mortar; and exhausting the high concentration or paste mortar into well or ground surface. The present invention also relates to the apparatus for producing and exhausting high concentration or paste mortar.
Description
Invention field
The present invention is the reasonable emission treatment technology of a kind of mine ore dressing tailings and barren rock, and it relates to goaf backfill processing and the discharging of the barren rock face of land after the ore body back production of down-hole, is directly connected to Mine Safety in Production and ecological environmental protection; More specifically relate to high concentration and paste mortar preparation and discharge technology and equipment.
Background technology
For a long time, mining industry has promoted the national economic development, has created great riches for country and people, but has also caused the serious problems that jeopardize production safety and human environment simultaneously.Handle as untimely backfill in a large amount of goafs that stay after the mining, will cause surface subsidence, jeopardizes downhole safety production and normal operation, and a large amount of barren rocks and beneficiation tailing are emitted on the face of land with serious environment pollution, destroys the ecological homeostasis.
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.
At present, the pattern of hydraulic fill is divided into two kinds basically, i.e. slurry hydraulic fill and lotion hydraulic fill.In the slurry hydraulic fill, can be further divided into common (low concentration) hydraulic fill and the filling of high concentration waterpower again.The difference of these three kinds of hydraulic fills is that the mortar of preparing has different concentration.Existing division is as follows:
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 natural 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 75% 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 etc. that dehydration, cement and sand all do not occur cause environment pollution, and the intensity of obturation improves relatively, thereby adopt in succession for the mine, various countries.
Current, the preparation technology of high concentration and paste mortar is divided into three kinds substantially, now is described below:
1) last mortar filters and reproduces sizing process: will be from the last mortar in ore dressing plant, about 30% (weight concentration) of concentration dewatered with filter in Filling Station, make filter cake, water content about 15%, then filter cake is delivered in the mixer and to be added water with cement or other additive 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.
3) efficient flocculating and concentrated preparation technology: will pump into from the last mortar in ore dressing plant in the center of top charging cylinder of concentration basin, or in other charging aperture, adding flocculant simultaneously precipitates tailings rapidly, with the puddler that turns round operation at a slow speed, the tailings that will be deposited in the concentration basin bottom is discharged concentration basin.The concentration basin structure at a kind of dark end is brought into use, and the underflow density that its concentration basin is discharged is generally 65% to 75%.Because the underflow of high concentration requires high-intensity puddler, this has just limited the maximum concentration that this technology can prepare.Drive the puddler requirement in addition one cover electrical equipment is installed, and consumes energy.In the mine produced, the tailings that is used for goaf filling accounted for about 60% of total amount greatly, and remainder need be emitted in the tailing dam of bottom.If beneficiation tailing then need be built huge tailings dam, as before discharging with the discharging of low concentration mortar (30%) pattern, last mortar is made high concentration or paste mortar, discharging then, can save the tailings dam volume this moment, reduce tailings dam building expense and maintenance cost, reduce environment pollution simultaneously.In a word, no matter be filling in mine, or face of land discharging, beneficiation tailing all should be made high concentration or paste mortar.Therefore, adopt high concentration and paste mortar preparation technology to bring good economic benefit and social benefit for the mine.
Summary of the invention
The present invention provides a kind of cost-effective high concentration and paste mortar preparation technology and equipment, then the mortar of making is delivered to the down-hole or is disposed to the face of land.Its purpose: one provides a kind ofly with low concentration last mortar utilization flocculation, and the precipitation dehydration concentrates and fluidization is prepared into high concentration or paste mortar; Two provide the equipment of a cover preparation high concentration and paste mortar.
Mortar preparation of the present invention and discharge technology comprise:
(A) last mortar with low concentration precipitates dehydration in the sand storehouse;
(B) concentration process comprises and utilizes jet-stream wind (being generally air) to make the last mortar of precipitation dehydration discharge Free water, and through fixed from the resedimentation compacting;
(C) utilize the last mortar after jet-stream wind (being generally air) or jet water course will concentrate to activate the mortar of making high concentration and paste body shape; With
(D) then with under the mortar drainage well of high concentration and paste body shape or the face of land.When being disposed to the down-hole, when carrying out goaf filling, generally want adding additives (as cement), be disposed to the down-hole through after stirring.The mortar preparation is generally carried out in the preparation station, and its preparation process can be intermittent operation or continued operation, decides on specific requirement.Figure 1 shows that typical mortar preparation station layout.
Wherein step (D) preferably utilizes the flow-aiding device that is arranged on bottom, sand storehouse to discharge from the sand storehouse under the mortar drainage well of high concentration and paste body shape or the face of land, described flow-aiding device is one to be arranged on the letdown tank on the floss hole in the sand storehouse bottom, and that this letdown tank can be is cylindrical, cylindroid, square, cone-shaped, tubaeform etc.By this flow-aiding device, can prevent last mortar knot doming effect, outside mortar stably being discharged deliver from godown, thereby make the long-pending effective rate of utilization of sand warehouse up to more than 90%, be more conducive to discharging.
Described dehydration can comprise flocculation (or not having flocculation) process, and tailings is dewatered from reprecipitation.
Described activation process comprises the tailings of precipitation after the dehydration under the effect of fluid jet, becomes suspended state by the precipitation state; Described fluid can be air or water, preferred air.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, making it can't displacement, has only the effect of outer power, promptly when the shearing force that adds surpasses the limit shearing force of tailings entity, tailings could move, that is to say, amass in the tailings of bottom, sand storehouse, be not in suspended state if do not adopt fluidization technology to make it activation,, can't emit yet although open sand storehouse bottom valve; 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.
Tailings of the present invention concentrate or activation process in, when fluid was air, its jet pressure for example can be the 0.2-2.5 MPa, flow for example be the 50-180 cubic meter/minute, the fluidization time for example is 0.5-2.0 hour, can prepare high concentration or paste mortar; In activation process, when fluid was water, its jet pressure for example was the 0.2-2.5 MPa, and effluxvelocity for example is the 0.05-1 cel, and the fluidization time for example is 5-30 minute, can prepare the high concentration mortar.
Cementing agent can be cement described in the fill process of the present invention, its addition, and promptly the weight ratio of cement in the mixture of tailings and cement is preferably 2-8%, and mixing time is preferably 5-10 minute.
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 for example is 50-200 gram/ton tailings.
The pulp consistency of the present invention's preparation is generally 70-86% (weight concentration).
Technology of the present invention comprises and will be prepared into required mortar from ore dressing plant classified tailings or unassorted full tailings.The last mortar flow that enters the sand storehouse for example can be 50 cubic metres/hour to 200 cubic metres/hour, and it depends on the disposal ability in ore dressing plant, and its operating process can be continued operation or intermittently operated.
Course of conveying described in the filling process of the present invention is the process that the mortar of the high concentration that will make or paste is transported to goaf in the hole, because mortar is dense, make mortar have higher initial shear power and adhesion stress, 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 that the high concentration or the paste mortar that are disposed to the goaf have 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 barricade and can satisfy the requirement that filling is isolated.
The mortar preparation of high concentration of the present invention and lotion and the equipment of discharge technology comprise sand storehouse, mixer and induction system, described sand storehouse comprises warehouse, is positioned at the charging gear at Sha Cang top, be positioned at overflow drench pit and outfall that Sha Cang top is provided with along inwall, be positioned at the fluidization equipment of Sha Cang bottom, be positioned at the sediment outflow flow-aiding device and the vent valves of bottom, sand storehouse.The top of preferred warehouse is preferably one and expands part, for example be inverted-cone shape, so more helps dewatering.The angle of the both sides of this taper and warehouse top water horizontal line for example can be the 60-90 degree, and the height of this inverted-cone shape for example can be 2% to 20% of sand storehouse overall height.
Be arranged on the charging gear at Sha Cang top described in the equipment of the present invention, can be positioned at the center or the periphery at Sha Cang top, can be cylindrical shape, square, elliptical cylinder-shape etc.It for example can be that diameter is 0.5 meter to 3 meters, highly can be the cylinder of 2-4 rice, also can be small one and large one two cylinders, wherein little cylinder is positioned within the large cylinder, and in this case, the last mortar feed can be given to the position between roundlet tube periphery and the large cylinder periphery, make fluidization equipment and tailings feed to operate simultaneously, gas is discharged by the roundlet tube, and does not influence the sedimentation of tailings feed, realizes the serialization manufacturing process.The last mortar of low concentration enters cylinder from above, diffuse to sand storehouse inwall from the cylinder bottom tapping, injects flocculant to cylinder simultaneously.Described cylinder can be steel work.
The overflow drench pit that is positioned at the Sha Cang top described in the equipment of the present invention can make continuous feed and dehydration carry out synchronously.
The fluidization equipment of the described Sha Cang of being positioned at bottom can be used for concentrating and activation process, make the last mortar of precipitation discharge Free water, and with particle diameter be sand grains between 5 microns-5 millimeters from down activation of sedimentation state, it can be positioned on bottom, sand storehouse (for example conical section of bottom, sand storehouse) and/or the discharging flow-aiding device.It comprises the nozzle on circular endless tube and the pipe, and the endless tube numerical example is as being generally 1-4 or more, sets gradually from top to bottom according to the size of endless tube center circle diameter, and the total number of pipe top nozzle for example is generally 20-100, and mounted angle is preferably 0-45 degree (to the center of circle); Nozzle in use should have not blocking characteristic, reliable operation.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 the storehouse, makes tailings loosening, becomes free flowable slurry, and fluidization zone on the plasma discharge mouth, can make the mortar part fluidization storehouse in bottom, sand storehouse, or whole fluidization.
Discharging flow-aiding device described in the equipment of the present invention is a flute profile device that is positioned on the bottom drain of sand storehouse, can be cylindrical shape, square, cone-shaped, elliptical cylinder-shape, tubaeform etc., and the diameter or the length of side for example can be 0.15 meter to 0.35 meter.Highly for example can be 0.8 meter to 2.0 meters.This flute profile device can make mortar stably discharge.
Sand storehouse described in the equipment of the present invention can be metal construction or concrete structure, and diameter for example can be 2-12 rice, highly for example 5-20 rice.Bottom, sand storehouse can be flat or tapered or hemispherical.The cone angle of taper storehouse bottom structure is generally 90 to 60 degree.
In sum, the tailings discharging of high concentration of the present invention and lotion and filling in mine technology have can be concentrated with the last mortar dehydration of low concentration rapidly, can make the deposition tailings activation in the sand storehouse, tailings at different levels all can be made characteristics such as high concentration or paste mortar, no Free water was deviate from after particularly made mortar was discharged into the goaf, the cement-free segregation phenomenon takes place, can form high-intensity obturation, adopt the used equipment of this technology to have scientific and reasonable, simple to operation, small investment, characteristics such as cost is 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 the technology that the present invention all makes high concentration with tailings at different levels or the paste mortar carries out filling.
Description of drawings
Fig. 1 is preparation station arrangement diagram, and label 1 is the sand storehouse, and 2 is cement bin, and 3 is charging gear, and 4 is the last mortar charging, and 5 is the flocculant charging gear, and 6 is mixer, and 7 are overflow, and 8 for being given to the pipeline of down-hole, and 9 for being given to the pipeline of tailing dam, and 10 are the overflow drench pit.
Figure 2 shows that the sand chamber structure, label 1 is a feed arrangement; 2 is sand storehouse top structure; 3 are the overflow drench pit; 4 is warehouse; 5 is fluidization equipment, comprises two row's endless tubes and the nozzle that is positioned at sand storehouse bottom cone part and is positioned at row's endless tube of one on the sediment outflow flow-aiding device and nozzle; 6 is sand storehouse polycrystalline substance; 7 is the sediment outflow flow-aiding device.
The specific embodiment
Below in conjunction with accompanying drawing preparation technology is further described.
Fig. 1 is preparation station arrangement diagram.This preparation station has two sand storehouses 1, one cement bin 2, transporter, mixer 6 and conveyance conduit 8 and 9.As shown in the figure, when concentration only is 30% last mortar when being pumped into the sand storehouse that is positioned at the preparation station by the ore dressing plant, if 150 cubic metres/hour of the flows of last mortar.Last mortar 4 at first enters the cylinder of sand storehouse center of top, diffuses to bulkhead by the cylinder bottom tapping then, adds flocculant by flocculant charging gear 5 simultaneously in cylinder, and additional proportion is 100 gram/tons (flocculant/tailings).Tailings flocculation back is precipitation rapidly, and the clear water that is positioned at above the sand setting is overflow 7 through overflow drench pit 10 by the outfall discharge, and dehydration and charging can be carried out synchronously like this.The tailings that is deposited in the sand storehouse also has water of hydration, (air-spray pressure is about the 0.5-2 MPa to the fluidization equipment jet-stream wind that is equipped with by bottom, sand storehouse, preferred about 1 MPa, flow is the 10-200 cubic meters per minute, preferred 50-100 cubic meters per minute) making it to discharge Free water reaches concentrated, fixed through the deadweight compacting again.Because intergranular chucking power and adhesion stress, even open plasma discharge valve at the bottom of the storehouse, also can't discharge, therefore, it must be activated, i.e. fluidization.For this reason after concentrating compacting, at the fluidization equipment that be equipped with bottom, sand storehouse, be the 0.5-2 MPa with jet pressure, about preferred 1 MPa, flow is that the air of 100 cubic meters per minute to 150 cubic meters per minute is in nozzle is injected sand setting, make the tailings activation, suspend, become high density slurry, and the flow-aiding device-cylinder unit bottom the sand storehouse, make it smooth discharging, can not produce the knot doming effect, can make the long-pending effective rate of utilization of sand warehouse up to more than 90%.When sand storehouse floss hole is opened, mortar just flows in the mixer, and with cement stir about 10 minutes, the addition of cement was generally 2% to 8%, mortar after stirring desired high concentration or paste mortar, its concentration can be 70% to 86% (weight concentration).Send into the down-hole via pipe-line system 8 then.If last mortar is disposed to tailings dam, bottom, and when not doing casting resin and using, do not add cement this moment.
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.
Claims (10)
1, preparation of high concentration or paste mortar and discharge technology, this technology comprises:
(A) last mortar with low concentration precipitates dehydration in the sand storehouse;
(B) concentrate, comprise and utilize jet-stream wind to make the last mortar of precipitation dehydration discharge Free water, and through from the resedimentation compacting, fixed;
(C) utilize the last mortar after jet-stream wind or jet water course will concentrate to activate the mortar of making high concentration and paste body shape; With
(D) then with under the mortar drainage well of high concentration and paste body shape or the face of land.
2, high concentration or the paste mortar according to claim 1 prepares and discharge technology, wherein step (D) utilizes the flow-aiding device that is arranged on bottom, sand storehouse to discharge from the sand storehouse under the mortar drainage well of high concentration and paste body shape or the face of land, described flow-aiding device is one to be arranged on the letdown tank on the floss hole in the sand storehouse bottom, and described letdown tank for example is cylindrical shape, square, cone-shaped, elliptical cylinder-shape, tubaeform etc.
3, according to high concentration or the paste mortar preparation and the discharge technology of claim 1, described dehydration can comprise or not comprise flocculation process.
4, according to the high concentration of claim 1 or paste mortar preparation and discharge technology, described activation process comprises that tailings with the precipitation after the dehydration under the effect of fluid jet, becomes suspended state by the precipitation state.
5, high concentration or the paste mortar according to claim 1 prepares and discharge technology, wherein tailings concentrate or activation process in, when fluid is air, its jet pressure is the 0.2-2.5 MPa, flow be the 50-180 cubic meter/minute, the fluidization time is 0.5-2.0 hour, can prepare high concentration or paste mortar; In activation process, when fluid was water, its jet pressure was the 0.2-2.5 MPa, and effluxvelocity is the 0.05-1 cel, and the fluidization time is 5-30 minute, can prepare the high concentration mortar.
6, a kind of last mortar dehydration equipment, comprise the sand storehouse, described sand storehouse comprises warehouse, is positioned at the charging gear at Sha Cang top, is positioned at overflow drench pit and outfall that Sha Cang top is provided with along inwall, be positioned at the fluidization equipment of Sha Cang bottom, be positioned at the sediment outflow flow-aiding device and the vent valves of bottom, sand storehouse.
7, according to the last mortar dehydration equipment of claim 6, wherein the top of warehouse is to expand part.
8, according to the last mortar dehydration equipment of claim 6, wherein charging gear can be positioned at the center or the periphery at Sha Cang top, can be cylindrical shape, square, elliptical cylinder-shape etc.; It for example can be that diameter is 0.5 meter to 3 meters, highly can be the cylinder of 2-4 rice, also can be small one and large one two cylinders, wherein little cylinder is positioned within the large cylinder, and in this case, the last mortar feed can be given to the position between roundlet tube periphery and the large cylinder periphery, make fluidization equipment and tailings feed to operate simultaneously, gas is discharged by the roundlet tube, and does not influence the sedimentation of tailings feed, realizes the serialization manufacturing process.
9, according to the last mortar dehydration equipment of claim 6, wherein fluidization equipment comprises the circular endless tube that is arranged on sand storehouse bottom and/or the flow-aiding device and the nozzle on 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 pipe top nozzle is 20-100, and mounted angle is 0-45 degree (to the center of circle).
10, according to the last mortar dehydration equipment of claim 6, described discharging flow-aiding device is a flute profile device that is positioned on the bottom drain of sand storehouse, can be cylindrical shape, square, cone-shaped, elliptical cylinder-shape, tubaeform etc., the diameter or the length of side for example can be 0.15 meter to 0.35 meter, highly can be 0.8 meter to 2.0 meters, this flute profile device can make mortar stably discharge.
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| CNA031018963A CN1521388A (en) | 2003-01-29 | 2003-01-29 | Process and equipment for preparing and discharging high concentration and plaster mortar |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165317B (en) * | 2006-10-16 | 2010-12-01 | 中国矿业大学(北京) | Filling device and method for filling down-hole goaf by same |
| CN101358536B (en) * | 2007-07-31 | 2011-06-22 | 中国恩菲工程技术有限公司 | Mine filling device |
| 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 |
| CN101469614B (en) * | 2007-12-27 | 2012-01-04 | 中国恩菲工程技术有限公司 | Filling apparatus |
| 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 |
| 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 |
| CN101358537B (en) * | 2007-07-31 | 2013-07-17 | 中国恩菲工程技术有限公司 | Sand warehouse for mine packing means |
| CN104787571A (en) * | 2015-03-26 | 2015-07-22 | 和县金城米业有限责任公司 | Method for transporting wheat in divided mode |
| CN104820087A (en) * | 2015-05-11 | 2015-08-05 | 长沙矿山研究院有限责任公司 | Compressed air slurry making testing device capable of simulating different material levels |
| CN105945040A (en) * | 2016-06-27 | 2016-09-21 | 安徽金联地矿科技有限公司 | Mine waste treatment process |
| 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 |
| CN106626056A (en) * | 2016-11-29 | 2017-05-10 | 攀枝花市九鼎智远知识产权运营有限公司 | Preparation equipment and preparation method for quartz sand slurry |
| CN106673467A (en) * | 2016-11-29 | 2017-05-17 | 攀枝花市九鼎智远知识产权运营有限公司 | Cementing material for mine filling and preparation method of cementing material |
| 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 |
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- 2003-01-29 CN CNA031018963A patent/CN1521388A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165317B (en) * | 2006-10-16 | 2010-12-01 | 中国矿业大学(北京) | Filling device and method for filling down-hole goaf by same |
| 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 |
| CN101358536B (en) * | 2007-07-31 | 2011-06-22 | 中国恩菲工程技术有限公司 | Mine filling device |
| CN101358537B (en) * | 2007-07-31 | 2013-07-17 | 中国恩菲工程技术有限公司 | Sand warehouse for mine packing means |
| 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 |
| CN101469614B (en) * | 2007-12-27 | 2012-01-04 | 中国恩菲工程技术有限公司 | Filling apparatus |
| CN102442808A (en) * | 2010-10-15 | 2012-05-09 | 中国矿业大学(北京) | All tailing cementing and discharging technology |
| 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 |
| 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 |
| CN104787571A (en) * | 2015-03-26 | 2015-07-22 | 和县金城米业有限责任公司 | Method for transporting wheat in divided mode |
| CN104820087A (en) * | 2015-05-11 | 2015-08-05 | 长沙矿山研究院有限责任公司 | Compressed air slurry making testing device capable of simulating different material levels |
| CN105945040A (en) * | 2016-06-27 | 2016-09-21 | 安徽金联地矿科技有限公司 | Mine waste treatment process |
| 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 |
| CN106626056A (en) * | 2016-11-29 | 2017-05-10 | 攀枝花市九鼎智远知识产权运营有限公司 | Preparation equipment and preparation method for quartz sand slurry |
| CN106673467A (en) * | 2016-11-29 | 2017-05-17 | 攀枝花市九鼎智远知识产权运营有限公司 | Cementing material for mine filling and preparation method of cementing material |
| 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 |
| CN108561178B (en) * | 2018-06-22 | 2024-04-26 | 长沙矿山研究院有限责任公司 | Coarse tailing filling system and process |
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