CN1024918C - Mine used high water bed solidification support material - Google Patents
Mine used high water bed solidification support material Download PDFInfo
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- CN1024918C CN1024918C CN 90103141 CN90103141A CN1024918C CN 1024918 C CN1024918 C CN 1024918C CN 90103141 CN90103141 CN 90103141 CN 90103141 A CN90103141 A CN 90103141A CN 1024918 C CN1024918 C CN 1024918C
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- high water
- water retaining
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Abstract
The present invention discloses high-water solidification supporting materials for mines, which is characterized in that the materials are formed by mixing two kinds of slurry, wherein one kind of the slurry is formed by blending water with special cement with high content of Al2O3 and a small amount of citric acid, and the A slurry is formed; the other kind of the slurry is formed by blending water with anhydrous gypsum, quicklime, bentonitic clay, calcium carbonate and a small amount of sodium carbonate, and the B slurry is formed; before the two kinds of the slurry are mixed, the two kinds of the slurry can be separately placed for 12 to 48 hours without coagulation; after the two kinds of the slurry are mixed, the two kinds of the slurry can be coagulated in 15 to 30 minutes; the strength of some of the coagulated slurry can reach more than 1MPa in 6 hours, and the strength in 24 hours can reach 2 to 4MPa in 24 hours; the final strength can reach more than 6MPa. The water content of the materials reaches 72% (by weight), and the materials have the advantages of low cost, rapid resistance increase, high residual strength, good toughness, no toxicity or harm, etc. The materials are favorable supporting materials beside lanes.
Description
The invention discloses a kind of be applicable to mine filling, mine working supporting, every wind locking leak, flame-retarding fire-extinguishing, be specially adapted to high water retaining material and using method as the filling in mine supporting.
So-called high water retaining material is that to select high alumina class special cement grog for use be first material base-material, be equipped with raw material and admixtures such as gypsum, lime, resemble and make the cement through technologies such as levigate, homogenizing, and two kinds of powders of first, the second of making, add water during use and make two kinds of slurries of first, second, again by two cover pumping systems, as water pump pump water, simultaneously two kinds of slurries are transported to the place to use, by mixing tank two kinds of slurry uniform mixing are charged into the filling place after together in the place to use.Mixed slurries very quick setting become the artificial stone of solid, having played a water becomes masonry to use, because the volume ratio content of water is very high in this hardened material body, water-solid ratio can reach 3.0: 1, and have characteristics such as rapid hardening, early strength height, therefore suitable especially filling and the support material of doing in the mining engineering, so, claim that novel material of the present invention is the high water retaining material.Edge air gallery technology is a great technical renovation in the coal mining technology, make the roadside packing material with the high water retaining material, not only aspect mechanical property, satisfy the requirement of edge air gallery technology, replace the wooden prop, the waste pack that used in the past, given system concrete segment etc., and be convenient to mechanized construction, raise the efficiency and reduce labor strength.
The object of the present invention is to provide a kind of have excellent mechanical performances and economic benefit, easy to use, nontoxic, be specially adapted to high water retaining material and using method thereof as filling in mine and supporting.
1, high water retaining material is characterized in that:
(1) constitutes the first material base-material of high water retaining material by the mixture of the cement clinker that is selected from a kind of or certain several high alumina class in high-alumina refractory cement clinker, aluminium alumina cement grog, sulphoaluminate cement clinker, ferro-aluminate cement grog, the fluoaluminate cement clinker; In the first material base-material of high water retaining material, add the first material that an amount of retardant citric acid mixing grinding is made the high water retaining material; The content of retardant citric acid is 0.1～1.0% of first material weight in the first material.
(2), by lime, gypsum be main add proper amount of bentone, carbonate is mixed in proportion the second material base-material that constitutes the high water retaining material, the weight proportion of second material base-material is:
Gypsum 40～70%,
Lime 10～30%,
Wilkinite 10～30%,
Lime carbonate 10～30%;
In high water retaining material second material base-material, add the second material that an amount of accelerating chemicals yellow soda ash powder mixing grinding is made the high water retaining material; The content of accelerating chemicals carbonate is 0.3～2% of second material weight in the second material;
(3) the high water retaining material is made up of first material and second material two portions solid powder of high water retaining material, and both weight ratios are 1: 1.
2, the using method of high water retaining material is characterized in that:
When engineering is used, in two slurrying stirred vessels, two kinds of solid powders of first, second of high water retaining material are mixed and made into two kinds of high-moisture slurries of first, second with the water of 1.5～3 times of own wts respectively, by two the cover delivery systems with two slurries synchronous transport near the place to use,, subsequently the slurries that form are charged into by supporting or filling space two kinds of slurries uniform mixing of first, second by a mixing tank; The mixed slurries of first, second two slurries just can connect water band material together condensation cure become to satisfy the high crystal water solid of engineering support or filling requirement.
Because the high moisture characteristics of high water retaining material, the preceding placement separately of first slip liquid and B material slurry mixing can reach 12～48 hours and not solidify, good fluidity is adapted to the pumping filling especially, and is solidified into solid with regard to coagulable in 15～30 minutes because two kinds of slurries mix the back, and the ultimate compression strength increase is very fast, promptly solidify back 1 hour intensity and reach more than the 0.1MPa, more than 6 hours intensity 1.0MPa, intensity 2～4MPa of 24 hours, 3 days intensity 4～6MPa, final strength reaches more than the 6MPa.Therefore be specially adapted to as filling in mine and support material, also be applicable to and use aspect the engineerings such as, waterproofing and leakage-stopping fire-retardant, the spray of roadway anchor in the needs fire extinguishing.
Embodiment example one:
With the high water retaining material as the coal mine gob-side entry retaining roadside support:
(1) the citric acid uniform mixing that adds 0.3% in the sulphoaluminate cement clinker powder is made the first material;
(2) with anhydrite powder, calcium lime powder, sodium bentonite in powder and Paris white be by weight:
Gypsum: unslaked lime: sodium bentonite: lime carbonate=7: 2: 3: 3 proportioning, after mixing, the yellow soda ash that adds anhydrite, unslaked lime, sodium bentonite and lime carbonate gross weight 1% again makes the second material;
(3) in first is mixed agitated pool, by weight, the first material: the ratio of water=30: 70 is converted water with the first material and is made first slip liquid;
(4) in second is mixed agitated pool, by weight, the second material: the ratio of water=30: 70 is converted water with the second material and is made B material slurry;
(5) respectively first slip liquid and B material slurry being delivered to gob-side entry retaining roadside support filling place synchronously with the two the same slush pump of cover technical parameters and transfer line or a cover double-acting slush pump, is that near 1: 1 the ratio back that roadside support filling place two kinds of slurries is mixed is injected in the roadside support filling bag that has set and got final product in both mixed weight ratios.
Embodiment example two:
Make the coalmine ventilation sealed wall with the high water retaining material:
(1) the citric acid uniform mixing that adds 0.3% in the high-alumina refractory cement is made the first material;
(2) with anhydrite powder, calcium lime powder, sodium bentonite in powder and Paris white be by weight:
Anhydrite powder, unslaked lime, sodium bentonite: lime carbonate=7: 2: 3: 2 proportioning, make the second material after adding the yellow soda ash uniform mixing of anhydrite, unslaked lime, sodium bentonite and lime carbonate gross weight 0.5% again;
(3) mix in the agitated pool in first, second respectively, by weight, first material: water=28: 72; Second material: water=first material, second material converted water be mixed into slurries at 28: 72;
(4) respectively two kinds of slurries are delivered to synchronously near the sealed wall that will build with the slush pump of two cover technical parameter unanimities and transfer line or a cover double-acting slush pump;
(5) be that 1: 1 ratio is mixed the back with two kinds of slurries and injected to have set in the divider wall template groove or in the bag and get final product by weight.
Claims (2)
1, high water retaining material is characterized in that:
(1) constitutes the first material base-material of high water retaining material by the mixture of the cement clinker that is selected from a kind of or certain several high alumina class in high-alumina refractory cement clinker, aluminium alumina cement grog, sulphoaluminate cement clinker, ferro-aluminate cement grog, the fluoaluminate cement clinker; In the first material base-material of high water retaining material, add the first material that an amount of retardant citric acid mixing grinding is made the high water retaining material; The content of retardant citric acid is 0.1～1.0% of first material weight in the first material;
(2), by lime, gypsum be main add proper amount of bentone, carbonate is mixed in proportion the second material base-material that constitutes the high water retaining material, the weight proportion of second material base-material is:
Gypsum 40～70%,
Lime 10～30%,
Wilkinite 10～30%,
Lime carbonate 10～30%;
In high water retaining material second material base-material, add the second material that an amount of accelerating chemicals yellow soda ash powder mixing grinding is made the high water retaining material; The content of accelerating chemicals carbonate is 0.3～2% of second material weight in the second material;
(3) the high water retaining material is made up of first material and second material two portions solid powder of high water retaining material, and both weight ratios are 1: 1.
2, the using method of the described high water retaining material of claim 1 is characterized in that:
When engineering is used, in two slurrying stirred vessels, two kinds of solid powders of first, second of high water retaining material are mixed and made into two kinds of high-moisture slurries of first, second with the water of 1.5～3 times of own wts respectively, by two the cover delivery systems with two slurries synchronous transport near the place to use,, subsequently the slurries that form are charged into by supporting or filling space two kinds of slurries uniform mixing of first, second by a mixing tank; The mixed slurries of first, second two slurries just can connect water band material together condensation cure become to satisfy the high crystal water solid of engineering support or filling requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103141 CN1024918C (en) | 1990-06-28 | 1990-06-28 | Mine used high water bed solidification support material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103141 CN1024918C (en) | 1990-06-28 | 1990-06-28 | Mine used high water bed solidification support material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1057825A CN1057825A (en) | 1992-01-15 |
| CN1024918C true CN1024918C (en) | 1994-06-08 |
Family
ID=4877923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90103141 Expired - Fee Related CN1024918C (en) | 1990-06-28 | 1990-06-28 | Mine used high water bed solidification support material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1024918C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004058662A1 (en) * | 2002-12-24 | 2004-07-15 | Tsinghua University | A two-component wet cement, process and application thereof |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052966C (en) * | 1994-06-28 | 2000-05-31 | 西北矿冶研究院 | High-water-content quick-setting cemented filling composite material for mine |
| CA2177298C (en) * | 1996-05-24 | 2009-04-07 | Henghu Sun | Systematic method for making shotcrete and the like cementitious compositions and such compositions |
| CN1061954C (en) * | 1997-04-25 | 2001-02-14 | 西安建筑科技大学 | Composite wet steel-coated grouting filler |
| 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 |
| CN100535076C (en) * | 2008-01-17 | 2009-09-02 | 中国矿业大学 | Drilling hole sealing material |
| CN101538054B (en) * | 2008-03-17 | 2011-02-09 | 中盐宏博（集团）有限公司 | Use of anti-coagulant for mine produced sodium chloride and application method thereof |
| CN102173730B (en) * | 2011-01-21 | 2013-03-06 | 煤炭科学研究总院 | High-moisture filling material and preparation method thereof |
| CN103232207A (en) * | 2013-04-17 | 2013-08-07 | 淄博品石充填剂技术有限公司 | High water content fire extinguishing filling material, preparation method and use method thereof |
| CN106220216B (en) * | 2016-07-11 | 2019-04-02 | 中国矿业大学(北京) | A kind of high-strength mining expansion filling fireproofing extinguishing materials and its application method |
| CN110330304B (en) * | 2019-07-31 | 2021-10-22 | 河北充填采矿技术有限公司 | High-water-content rapid-setting gob-side entry retaining material and preparation and use methods thereof |
| CN113958324B (en) * | 2021-10-19 | 2024-05-07 | 金川集团股份有限公司 | Method for grouting and reinforcing deep drilling of roadway bottom plate |
| CN115073117B (en) * | 2022-06-28 | 2023-07-07 | 河北筑盛科技股份有限公司 | Mining low-temperature ultra-high crystal water rapid-hardening filling support material and preparation method thereof |
| CN115849848A (en) * | 2022-11-22 | 2023-03-28 | 贵州理工学院 | High-water-content material and preparation method thereof |
-
1990
- 1990-06-28 CN CN 90103141 patent/CN1024918C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004058662A1 (en) * | 2002-12-24 | 2004-07-15 | Tsinghua University | A two-component wet cement, process and application thereof |
| US7708825B2 (en) | 2002-12-24 | 2010-05-04 | Tsinghua University | Sialite binary wet cement, its production method and usage method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1057825A (en) | 1992-01-15 |
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