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CN106121716A - A kind of New Mine filling additive - Google Patents

A kind of New Mine filling additive Download PDF

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Publication number
CN106121716A
CN106121716A CN201610415726.0A CN201610415726A CN106121716A CN 106121716 A CN106121716 A CN 106121716A CN 201610415726 A CN201610415726 A CN 201610415726A CN 106121716 A CN106121716 A CN 106121716A
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CN
China
Prior art keywords
additive
filling
new mine
mine filling
slip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610415726.0A
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Chinese (zh)
Other versions
CN106121716B (en
Inventor
王国军
张国玉
安伯超
王传琪
王清华
闫甫
林羿潇
于相坤
刘乐
李传磊
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Shandong An Shi Green Mining Technology Development Co Ltd
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Shandong An Shi Green Mining Technology Development Co Ltd
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Priority to CN201610415726.0A priority Critical patent/CN106121716B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/005Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

The invention discloses a kind of New Mine filling additive and preparation method thereof, described New Mine filling additive is made up of pulp density regulator, fluid loss additive, sagging inhibitor, enhancing compacting agent, and the percentage by weight of its each component is as follows: pulp density regulator 35%~65%;Fluid loss additive 5~15%;Sagging inhibitor 10~20%, strengthens compacting agent 10~25%.New Mine filling additive of the present invention can significantly improve the workability of filling slurry, after adding this additive, slip the most still has good transportation performance, slip enters behind goaf and needs not move through a large amount of dehydration, and under same gel material content, slip early strength rises very fast and final comprcssive strength and can increase substantially.Filling in mine Additive Properties high efficient technology of the present invention is simple, and uses low raw-material cost, is suitable to popularization and application in filling in mine.

Description

A kind of New Mine filling additive
Technical field
The present invention relates to a kind of new additive agent in filling in mine material, be specifically related to a kind of for improving filling in mine Slip workability and the additive of each age comprcssive strength.
Background technology
The application in mining of the filling method mining technique is increasingly wider, during filling filling slurry by gravity flow or By Pipeline transport to goaf under certain pumping pressure, due to the bleeding of filling slurry, the most easily blocking filling pipeline. The main component of general filling slurry is filling major ingredient (tailings, flyash, gangue, building waste etc.), Binder Materials (water Mud, rubber solid material) and water.In order to improve the workability energy of slip in stowing operation, generally require the Binder Materials that regulation adds With the amount of water, during filling, the concentration of slip often controls within the scope of relatively low at one, thus it is mined out to cause slip to enter Qu Houhui experiences a dehydration, and Binder Materials also can run off a part, and obturator early strength rises slow and the strongest Degree is also greatly affected.
Slip to meet the requirement that workability is good and the early strength fast final strength of rising is high simultaneously, it is necessary to adds suitably Additive.The features such as volume is big, concentration is low, Binder Materials volume is low, current market is there is due to filling slurry during filling in mine Additive have that volume is big, cost is high, to improving the shortcomings such as obturator early strength effect is undesirable, limit it on a large scale Application.
Summary of the invention
It is an object of the invention to provide a kind of new additive agent in a kind of filling in mine material, casting resin can be significantly improved The workability of slurry, after adding this additive, slip the most still has good transportation performance, and slip enters and adopts Needing not move through a large amount of dehydration behind dead zone, under same gel material content, slip early strength rises very fast and final Comprcssive strength can increase substantially.
The present invention is achieved by the following technical solutions:
A kind of New Mine filling additive, by pulp density regulator, fluid loss additive, sagging inhibitor, enhancing compacting agent Composition.
The percentage by weight of its each component is as follows: pulp density regulator 35%~65%;Fluid loss additive 5~15%;Anti- Sedimentation agent 10~20%, strengthens compacting agent 10~25%.
Preferably, above-mentioned New Mine filling additive, the percentage by weight of its each component is as follows: pulp density regulator 40%~60%;Fluid loss additive 5~12%;Sagging inhibitor 10~15%, strengthens compacting agent 15~20%.
Preferably, above-mentioned New Mine filling additive, the percentage by weight of its each component is as follows: pulp density regulator 45%~55%;Fluid loss additive 8~10%;Sagging inhibitor 12~15%, strengthens compacting agent 15~20%.
The above pulp density regulator is lignosulfonates, naphthalenesulfonate formaldehyde condensation compound water reducer, polycarboxylic acids One or more mixture in salt water reducer are by the mixing of any proportioning;Fluid loss additive is sodium carboxymethyl cellulose and sodium silicate Mixture, during mixing, the quality of sodium carboxymethyl cellulose and sodium silicate is (1~2) than ratio: (2~5);Sagging inhibitor is sodium Base bentonite and one or both mixture kaolinic, mixed by any proportioning;Enhancing compacting agent be aluminum sulfate, sodium carbonate and The mixture of silicon ash, during mixing, quality is aluminum sulfate than ratio: sodium carbonate: silicon ash=(3~5): (1~2): (2~5).
The preparation method of above-mentioned additive, comprises the following steps: is added with design proportioning by above-mentioned each clock raw material and is dry mixed Machine stirring 5~10min gets product.
The application in improving filling in mine slip workability and each age comprcssive strength of the above-mentioned additive, described interpolation Addition quality is Binder Materials in described filling slurry 0.5%~the 3% of agent.
Wherein, described concentration regulator all uses anion surfactant, in extender paste after incorporation of concentration regulator, dense Degree regulator in hydrophobic group oriented adsorption gelling material particles surface in filling slurry, and hydrophilic group point to water-soluble Liquid, constitutes unimolecule or multilayer adsorption film.Due to the oriented adsorption of surfactant, make filling slurry micelle surface with The electric charge of same-sign, then under the effect that the same sex is repelled each other, not only can make filling slurry-aqueous systems be in metastable outstanding Floating state, and, filling slurry can be made to disintegrate at the flocculence structure disperses that the initial stage of adding water is formed, discharge the freedom of parcel Water, thus increase considerably extender paste mobility.Meanwhile, the interpolation of concentration regulator is possible not only to make the workability of extender paste to change Kind, and owing to the filling slurry ratio of mud has decline by a relatively large margin so that it is interior pore volume significantly reduces, so that filler Slurry solidification after obturator comprcssive strength significantly improve.
Described fluid loss additive is the mixture of sodium carboxymethyl cellulose and sodium silicate, and carboxymethyl cellulose is nonpoisonous and tasteless White flock powder, stable performance, soluble in water, sodium carboxymethyl cellulose is that cellulose ether apoplexy due to endogenous wind yield is maximum, purposes Extensively, using product the most easily, it is placed in slip water-retaining property and the intensity being remarkably improved slip, and sodium silicate is as one Planting ore deposit adhesive, cohesive force is strong, intensity is higher, and under its wet environment, in absorbable slurry, moisture makes self to be in expansion shape State, thus accelerate slip consolidation.
Described sagging inhibitor is sodium bentonite and kaolinic mixture, and sodium bentonite and Kaolin are non-as two kinds Mineral metal products, industrially tool has been widely used, and in the present invention, sodium bentonite and Kaolin are as sagging inhibitor, institute Mainly sodium bentonite and the kaolinic characterization of adsorption relied on, in the application the sodium carboxymethyl cellulose in fluid loss additive with Sodium silicate one end is adsorbed onto sodium bentonite and kaolin particle surface, and the other end is dissolved in the Free water in slip, so that Form the effect of a kind of overseas Chinese federation between sodium bentonite and kaolin particle and hydrone, reduce the Free water in slip, sodium in addition The good peptizaiton that base bentonite and kaolin particle itself are had, it is possible to effectively prevent the gathering of slip granule, make Obtain slip granule to be uniformly distributed, ensure the sedimentation stability of slip.It is further preferred that sodium bentonite has with Kaolin There is the dilatancy of excellence, and the expansion volume of mine filler is by the size limitation in space, goaf, limited rear right expanding Periphery rock mass produces certain prestressing force, and this prestressing force is possible not only to be effectively improved the intensity of ore pillar, and can effectively change Stress distribution in kind rock mass.
Described enhancing compacting agent is aluminum sulfate, sodium carbonate and the mixture of silicon ash, and the addition of aluminum sulfate can significantly improve Aluminum ions content in filling slurry, can significantly improve strength of filling mass especially early strength.Sodium carbonate can show after adding Write the basicity improving serosity, the lateral reactivity of excited cementing material, be effectively improved the comprcssive strength of obturator.In silicon ash, fineness is little Accounting for more than 80% in 1 μm, mean diameter in 0.1~0.3 μm, specific surface area is: 20~28m2/ g, its fineness and specific surface area It is about 80~100 times of cement, 50~70 times of flyash.The hole between slip granule can be effectively filled after adding silicon ash Gap, is combined generation gelinite simultaneously, thus improves the shoes of Binder Materials and intensity with Binder Materials hydrated product, thus aobvious Write performances such as improving resistance to compression, anti-folding, impervious and shock resistance.
The present invention achieves following beneficial effect:
(1) the various raw material drawing of the present invention is convenient, and the prices of raw materials are cheap, need not through high temperature after the mixing of each raw material Calcining, stirring and evenly mixing at normal temperatures, convenient enforcement;
(2) present invention is made up of pulp density regulator, fluid loss additive, sagging inhibitor, enhancing compacting agent, each constituent Reasonable mixture ratio, cooperates and plays a role, and experimentation shows, additive of the present invention can significantly improve filling slurry and easy Property, when this additive presses 0.5%~3% incorporation of Binder Materials in slip, slip the most still has well Transportation performance, slip enters behind goaf and needs not move through a large amount of dehydration, slip under same gel material content Early strength rises very fast and final comprcssive strength and can increase substantially, and without detrimental effect.
In a word, filling in mine Additive Properties high efficient technology of the present invention is simple, and uses low raw-material cost, is suitable to Popularization and application in filling in mine.
Detailed description of the invention
Embodiment 1
By following percentage by weight preparation raw material: calcium lignosulfonate 5kg, naphthalenesulfonate formaldehyde condensation compound water reducer 55kg, sodium carboxymethyl cellulose 1kg, sodium silicate 4kg, sodium bentonite 8kg, Kaolin 7kg, aluminum sulfate 10kg, sodium carbonate 3kg, silicon ash 7kg, mix 5~10min in dry-mixed machine by above each raw material and obtain finished product.
1 material experiment index of table
Note: this experiment tailings used is the ultra-fine tailings of Zibo Jin Ling iron mine.
Embodiment 2
By following percentage by weight preparation raw material: calcium lignosulfonate 10kg, naphthalenesulfonate formaldehyde condensation compound water reducer 40kg, sodium carboxymethyl cellulose 2kg, sodium silicate 8kg, sodium bentonite 8kg, Kaolin 7kg, aluminum sulfate 8kg, sodium carbonate 3kg, Silicon ash 6kg, mixes 5~10min in dry-mixed machine by above each raw material and obtains finished product.
2 material experiment indexs of table
Note: this experiment tailings used is the ultra-fine tailings of Zibo Jin Ling iron mine.
Embodiment 3
By following percentage by weight preparation raw material: calcium lignosulfonate 5kg, naphthalenesulfonate formaldehyde condensation compound water reducer 15kg, polycarboxylate dehydragent 40kg, sodium carboxymethyl cellulose 2kg, sodium silicate 8kg, sodium bentonite 5kg, Kaolin 5kg, Aluminum sulfate 11kg, sodium carbonate 4kg, silicon ash 5kg, above each raw material is mixed 5~10min in dry-mixed machine and obtains finished product.
3 material experiment indexs of table
Note: this experiment tailings used is the ultra-fine tailings of Zibo Jin Ling iron mine.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment Limiting, one of ordinary skill in the art should be understood that, on the basis of technical scheme, those skilled in the art need not Pay various amendments or deformation that creative work can make still in protection scope of the present invention.

Claims (10)

1. a New Mine filling additive, it is characterised in that by pulp density regulator, fluid loss additive, sagging inhibitor, increasing Strong compacting agent composition, the percentage by weight of its each component is as follows: described pulp density regulator 35%~65%, described filtrate reducing Agent 5~15%, described sagging inhibitor 10~20%, described enhancing compacting agent 10~25%.
2. a kind of New Mine filling additive as claimed in claim 1, it is characterised in that the percentage by weight of its each component As follows: pulp density regulator 40%~60%;Fluid loss additive 8~12%;Sagging inhibitor 10~15%, strengthen compacting agent 15~ 20%.
3. a kind of New Mine filling additive as claimed in claim 1, it is characterised in that the percentage by weight of its each component As follows: pulp density regulator 55%~60%;Fluid loss additive 8~10%;Sagging inhibitor 12~15%, strengthen compacting agent 15~ 20%.
4. a kind of New Mine filling additive as described in claim 1-3 any one, it is characterised in that described slip is dense Degree regulator is one or more in lignosulfonates, naphthalenesulfonate formaldehyde condensation compound water reducer, polycarboxylate dehydragent Mixture is by the mixing of any proportioning.
5. a kind of New Mine filling additive as described in claim 1-3 any one, it is characterised in that described filtrate reducing Agent is the mixture of sodium carboxymethyl cellulose and sodium silicate, and the quality of described sodium carboxymethyl cellulose and sodium silicate is (1 than ratio ~2): (2~5).
6. a kind of New Mine filling additive as described in claim 1-3 any one, it is characterised in that described anti-settling Agent is sodium bentonite and one or both mixture kaolinic, mixes by any proportioning.
7. a kind of New Mine filling additive as described in claim 1-3 any one, it is characterised in that described enhancing is close Real agent is aluminum sulfate, sodium carbonate and the mixture of silicon ash, the quality of described aluminum sulfate, sodium carbonate and silicon ash than ratio be (3~ 5): (1~2): (2~5).
8. the preparation method of a kind of New Mine filling additive as described in claim 1-7 any one, it is characterised in that Take each raw material by weight adding dry-mixed machine mixing 5~10min.
9. a kind of New Mine filling additive as described in claim 1-7 any one is improving filling in mine slip with easy Application in property and each age comprcssive strength.
10. a kind of application as claimed in claim 9, it is characterised in that the addition quality of described additive is that described mine is filled In extender paste the 0.5%~3% of Binder Materials.
CN201610415726.0A 2016-06-13 2016-06-13 A kind of New Mine fills additive Active CN106121716B (en)

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Application Number Priority Date Filing Date Title
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CN106121716B CN106121716B (en) 2018-04-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107725106A (en) * 2017-11-21 2018-02-23 铜陵有色金属集团股份有限公司 A kind of method and its application for strengthening tailings mobility
CN109987869A (en) * 2019-03-13 2019-07-09 金泰成环境资源股份有限公司 A kind of New Mine filling enhanced additive of rapid hardening
CN116283032A (en) * 2022-07-29 2023-06-23 顺裕(龙岩)混凝土有限公司 Preparation process of additive for improving workability of concrete
CN116515468A (en) * 2023-04-03 2023-08-01 北京中煤矿山工程有限公司 Coal mine goaf gangue returning slurry and preparation method thereof

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WO2009068380A1 (en) * 2007-11-29 2009-06-04 Construction Research & Technology Gmbh Tunnel backfilling method
CN101555122A (en) * 2009-05-20 2009-10-14 中国水利水电建设集团公司 Antiseepage and reinforcing material of concrete
CN102503309A (en) * 2011-11-07 2012-06-20 西南交通大学 Self-compacting concrete mixture for plate-type ballastless track of railway
CN102503310A (en) * 2011-11-07 2012-06-20 西南交通大学 Super-high early-strength grouting material for repairing ballastless track structure of high speed railway
CN102515660A (en) * 2011-12-01 2012-06-27 中国矿业大学 Retarded cement grout for sealing water of freezing-hole solid pipe
CN102531458A (en) * 2010-12-09 2012-07-04 苏笮斌 Anti-crack and anti-corrosion plasticizer composition and preparation method thereof
CN103420687A (en) * 2013-08-07 2013-12-04 中建商品混凝土成都有限公司 Surface cleaning agent dedicated to exposed pervious concrete and preparation and application methods thereof
CN104774033A (en) * 2015-04-08 2015-07-15 西南科技大学 General purpose Portland cement based ultra-light physical foamed concrete
CN104876529A (en) * 2015-05-26 2015-09-02 芜湖鑫曜建材实业有限公司 Cold region used antifreezing concrete
WO2015164943A1 (en) * 2014-04-28 2015-11-05 The Royal Institution For The Advancement Of Learning/Mcgill University Methods and systems for foam mine fill

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009068380A1 (en) * 2007-11-29 2009-06-04 Construction Research & Technology Gmbh Tunnel backfilling method
CN101555122A (en) * 2009-05-20 2009-10-14 中国水利水电建设集团公司 Antiseepage and reinforcing material of concrete
CN102531458A (en) * 2010-12-09 2012-07-04 苏笮斌 Anti-crack and anti-corrosion plasticizer composition and preparation method thereof
CN102503309A (en) * 2011-11-07 2012-06-20 西南交通大学 Self-compacting concrete mixture for plate-type ballastless track of railway
CN102503310A (en) * 2011-11-07 2012-06-20 西南交通大学 Super-high early-strength grouting material for repairing ballastless track structure of high speed railway
CN102515660A (en) * 2011-12-01 2012-06-27 中国矿业大学 Retarded cement grout for sealing water of freezing-hole solid pipe
CN103420687A (en) * 2013-08-07 2013-12-04 中建商品混凝土成都有限公司 Surface cleaning agent dedicated to exposed pervious concrete and preparation and application methods thereof
WO2015164943A1 (en) * 2014-04-28 2015-11-05 The Royal Institution For The Advancement Of Learning/Mcgill University Methods and systems for foam mine fill
CN104774033A (en) * 2015-04-08 2015-07-15 西南科技大学 General purpose Portland cement based ultra-light physical foamed concrete
CN104876529A (en) * 2015-05-26 2015-09-02 芜湖鑫曜建材实业有限公司 Cold region used antifreezing concrete

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107725106A (en) * 2017-11-21 2018-02-23 铜陵有色金属集团股份有限公司 A kind of method and its application for strengthening tailings mobility
CN109987869A (en) * 2019-03-13 2019-07-09 金泰成环境资源股份有限公司 A kind of New Mine filling enhanced additive of rapid hardening
CN116283032A (en) * 2022-07-29 2023-06-23 顺裕(龙岩)混凝土有限公司 Preparation process of additive for improving workability of concrete
CN116283032B (en) * 2022-07-29 2024-02-27 顺裕(龙岩)混凝土有限公司 Preparation process of additive for improving workability of concrete
CN116515468A (en) * 2023-04-03 2023-08-01 北京中煤矿山工程有限公司 Coal mine goaf gangue returning slurry and preparation method thereof

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