AU2014292751A1 - Coal ash solidification foam material used for prevention and treatment of spontaneous combustion of coal and preparation method therefor - Google Patents
Coal ash solidification foam material used for prevention and treatment of spontaneous combustion of coal and preparation method therefor Download PDFInfo
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- AU2014292751A1 AU2014292751A1 AU2014292751A AU2014292751A AU2014292751A1 AU 2014292751 A1 AU2014292751 A1 AU 2014292751A1 AU 2014292751 A AU2014292751 A AU 2014292751A AU 2014292751 A AU2014292751 A AU 2014292751A AU 2014292751 A1 AU2014292751 A1 AU 2014292751A1
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- coal
- coal ash
- lpbw
- foam material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Fireproofing Substances (AREA)
Abstract
Abstract A coal ash solidified foam material for preventing spontaneous combustion of coal and a preparation method thereof. The coal ash solidified foam material comprises the following ingredients, in parts by weight (pbw): 40-60pbw of water, 100pbw of coal ash, 25pbw of compound powder for chemically self-producing gas, 1-5pbw of accelerator, 1-4pbw of activator, 0.6-1.5pbw of water reducer, and 0.5-lpbw of compound foam stabilizer. The preparing method comprises: adding the foam stabilizer in water and stirring to form a uniform foam solution; adding the coal ash, compound powder for chemically self-producing gas, accelerator, activator, and water reducer in a dry-blending mixer and stirring for 10-15min. to form a uniformly blended powder; and finally adding the blended powder into the uniform foam solution to obtain the coal ash solidified foam material. The material of the invention is light in weight, safe and low in costs, and has strong crack penetration capability, adjustable solidification time, great compressive strength, low heat conductivity coefficient, and a good heat insulation effect; the foam fluid can uniformly cover loose coal-rock mass; carbon dioxide is released during a foaming reaction process to well dilute the oxygen concentration in residual coal space; and the operation technique is simple.
Description
1 Coal Ash Solidified Foam Material for Preventing Spontaneous Combustion of Coal and Preparation Method thereof Field of the Invention The present invention relates to a solidified foam material and preparation method thereof, in particular to a coal ash solidified foam material for preventing spontaneous combustion of coal and preparation method thereof. Background of the Invention Spontaneous combustion of coal is one of the major natural disasters in coal mines, and severely threatens production safety and life safety in coal mines. The fire disasters in coal fields are mainly incurred by spontaneous combustion of coal owing to air leakage and oxygen supply in surface cracks. Spontaneous combustion of coal in mine underground mainly occur in mined-out spaces, open-off cuts, mining stop lines, geological structure zones, and tunnel top-coal caving region, where air leakage channels exist. To prevent spontaneous combustion of coal, techniques such as grouting, inert gas, inhibitor, gel, and polyurethane foam, etc. are utilized in China and foreign countries. However, all these methods have some drawbacks: the mud grouting technique consumes soil heavily and is unsuitable for use in regions short of soil, and the grout tends to seep downwards and can't seal up small cracks; inert gasses tend to diffuse along with the leaking air, and it is difficult to retain the inert gasses in the injection area; ammonium salt gels release toxic and harmful gasses, and the colloid may crack easily; inhibitors may erode the underground equipment and endanger the physical and mental health of the workers, and the fire prevention and suppression effect is not ideal; organic solidified foam materials can attain a satisfactory result, but the cost and ambient temperature requirement are high. In recent years, a three-phase foam new technique is adopted to prevent and suppress spontaneous combustion of coal in coal mines. It is much superior to conventional fire prevention and suppression techniques and materials, and can meet demands for fire prevention and suppression in a large area. Three-phase foam materials lack of strength and have not been solidified; whereas, in some occasions, solidified foam materials that have a high foam expansion, can be solidified, and have appropriate strength to fill, seal, and prevent spontaneous combustion of coal are required. Summary of the Invention To solve the problems related to prevention of spontaneous combustion of coal in the prior art, the present invention provides a coal ash solidified foam material for preventing spontaneous combustion of coal, which can dilute the oxygen concentration in a residual coal space, has a low heat conductivity coefficient, high heat insulation effect, and is easy to manipulate, safe, and low in cost. The coal ash solidified foam material according to the present invention comprises the following ingredients, in parts by weight (pbw): 40-60pbw of water, 100pbw of coal ash, 25-40pbw of compound powder for chemically self-producing gas, 3-5pbw of accelerator, 2-4pbw of activator, 1-2pbw of water reducer, and 1pbw of compound foam stabilizer; 2 The compound powder for chemically self-producing gas is prepared at the following blending ratio, in parts by weight (pbw): 24-35pbw of semi-hydrated calcium sulfate and 1-5pbw of sodium bicarbonate, which have a chemical reaction with each other and produce an inert gas (i.e., carbon dioxide gas), and thereby create foams in the grout; the accelerator is prepared at the following blending ratio, in pbw: 1-2pbw of alumina clinker, lpbw of sodium carbonate, and 1-2pbw of quick lime, wherein, the alumina clinker is composed of the following ingredients, in weight percentage: 94wt% of sodium aluminate, 4wt% of aluminum oxide, and 2wt% of calcium aluminosilicate; the activator is prepared at the following blending ratio, in pbw: 0.8-1.6pbw of magnesium oxide and 1.2-2.4pbw of magnesium chloride; the water reducer is prepared at the following blending ratio, in pbw: 0.5-lpbw of calcium lignosulphonate and 0.5-lpbw of condensate of naphthalene sulfonate and formaldehyde, wherein, in the condensate of naphthalene sulfonate and formaldehyde, the content of Na 2
SO
4 is <3%; the compound foam stabilizer is prepared at the following blending ratio, in pbw: 0.2pbw of ethylene glycol butyl ether, 0.3pbw of nano-silicon, and 0.5pbw of hydroxyethyl cellulose; the solidification time can be adjusted by adjusting the weight fractions among the accelerator, activator, and water reducer. The preparation process of the coal ash solidified foam material according to the present invention comprises the following steps: step 1: adding 40-60pbw of water, 0.2pbw of ethylene glycol butyl ether, 0.3pbw of nano-silicon, and 0.5pbw of hydroxyethyl cellulose into a special-purpose blending container A, and then stirring the mixed solution at 3,000±100rpm of rotation speed by a stirrer for 2min., to form a uniform foam solution; step 2: adding 100pbw of coal ash, 1-2pbw of alumina clinker, lpbw of sodium carbonate, 1-2pbw of quick lime, 0.8-1.6pbw of magnesium oxide, 1.2-2.4pbw of magnesium chloride, 0.5-lpbw of calcium lignosulphonate, and 0.5-lpbw of condensate of naphthalene sulfonate and formaldehyde into a dry-blending mixer B, and stirring the mixed powder at 3,000+100rpm of rotation speed by a stirrer for 3min., to form blended powder; step 3: adding the blended powder prepared in the dry-blending mixer B into the uniform foam solution in the special-purpose blending container A, and stirring the mixture at 12,000±500rpm of rotation speed by a stirrer in the special-purpose blending container A for 2min., to form blended grout, keeping still the blended grout to produce foams, so as to produce the coal ash solidified foam material for preventing spontaneous combustion of coal. Beneficial effects: with the technical scheme described above, in the present invention, the semi-hydrated calcium sulfate and sodium bicarbonate have a chemical reaction in water and produce an inert gas (i.e., carbon dioxide gas), and thereby create foams in the grout; with the compound foam stabilizer (i.e., compounded by ethylene glycol butyl ether, the nano-silicon and hydroxyethyl cellulose), the solid particles are homogeneously dispersed and suspend in the grout; the solidification time is adjusted by adjusting the weight fractions among the accelerator, activator, and water reducer; thus, the coal ash solidified foam fluid material is produced ultimately, which is lightweight, has a 8-15 foam expansion factor, and the foam fluid can uniformly cover loose coal-rock mass, and has strong crack penetration capability, adjustable solidification time, high compression strength (>1.5Mpa); some inert gas (i.e., carbon dioxide gas) is released in the foaming reaction process and the inert gas can dilute the oxygen concentration in 3 a residual coal space very well; in addition, the coal ash solidified foam material is of low heat conductivity coefficient that can attain a good heat insulation effect, and the coal ash solidified foam material is easy to manipulate, safe, and low in cost. It can cover the coal mass and isolate the coal mass from oxygen quickly, effectively seal air leakage channels and cracks in the coal mass, and prevent oxidation of the coal. This material is of great significance for preventing and suppressing spontaneous combustion of coal. Compared to the prior art, the present invention has the following advantages: (1) The coal ash solidified foam material for preventing spontaneous combustion of coal according to the present invention employs a foam self-producing system in which semi-hydrated calcium sulfate, sodium bicarbonate, and water have a chemical reaction and produce an inert gas. All of the three ingredients are environment-friendly materials and the inert gas (carbon dioxide) produced in the chemical reaction can dilute the oxygen concentration in a residual coal space; (2) The coal ash solidified foam material for preventing spontaneous combustion of coal according to the present invention is prepared from main raw materials including coal ash, semi-hydrated calcium sulfate, and sodium bicarbonate, which are widely available, and the process is simple; (3) In the coal ash solidified foam material for preventing spontaneous combustion of coal according to the present invention, the foam fluid can cover the coal mass very well, and has strong crack penetration capability and adjustable solidification time; (4) The coal ash solidified foam material for preventing spontaneous combustion of coal according to the present invention is lightweight (the foam expansion factor is 8-15), has high compression strength (>1.5Mpa) and low heat conductivity coefficient, can attain a good heat insulation effect, and has high applicability in the field of coal spontaneous combustion prevention. Detailed Description of the Embodiments Embodiment 1: the coal ash solidified foam material comprises the following ingredients, in parts by weight (pbw): 40-60pbw of water, 100pbw of coal ash, 25-40pbw of compound powder for chemically self-producing gas, 3-5pbw of accelerator, 2-4pbw of activator, 1-2pbw of water reducer, and 1pbw of compound foam stabilizer; The compound powder for chemically self-producing gas is composed of semi-hydrated calcium sulfate and sodium bicarbonate, which have a chemical reaction with each other in water and produce carbon dioxide, and thereby create foam in the grout. The two ingredients are blended at the following blending ratio, in parts by weight (pbw): 24-35pbw of semi-hydrated calcium sulfate and 1-5pbw of sodium bicarbonate; the accelerator is composed of alumina clinker, sodium carbonate, and quick lime, and is prepared at the following blending ratio, in pbw: 1-2pbw of alumina clinker, 1pbw of sodium carbonate, and 1-2pbw of quick lime, wherein, the alumina clinker is composed of the following ingredients, in weight percentage: 94wt% of sodium aluminate, 4wt% of aluminum oxide, and 2wt% of calcium aluminosilicate; the activator is a magnesium-based curing agent, composed of magnesium oxide and magnesium chloride, and 4 prepared at the following blending ratio, in pbw: 0.8-1.6pbw of magnesium oxide and 1.2-2.4pbw of magnesium chloride; the water reducer is composed of calcium lignosulphonate and a condensate of naphthalene sulfonate and formaldehyde, and is prepared at the following blending ratio, in pbw: 0.5-lpbw of calcium lignosulphonate and 0.5-lpbw of condensate of naphthalene sulfonate and formaldehyde, wherein, in the condensate of naphthalene sulfonate and formaldehyde, the content of Na 2
SO
4 is <3%; the compound foam stabilizer is compounded from ethylene glycol butyl ether, nano-silicon, and hydroxyethyl cellulose, and is prepared at the following blending ratio, in pbw: 0.2pbw of ethylene glycol butyl ether, 0.3pbw of nano-silicon, and 0.5pbw of hydroxyethyl cellulose; the compound foam stabilizer is helpful for the solid particles in the grout to disperse and suspend homogeneously and can decrease the volumetric density difference among upper, middle, and lower part of the coal ash solidified foam material, so that the pore size distribution is uniform, the pore structure can be improved significantly, and string-pores can be reduced. Embodiment 2: first, add 50pbw of water, 0.2pbw of ethylene glycol butyl ether, 0.3pbw of nano-silicon, and 0.5pbw of hydroxyethyl cellulose into a special-purpose blending container A, stir the mixed solution at 3,000100rpm of rotation speed by a stirrer for 2min., to form a uniform foam solution; then, in a dry-blending mixer B, add 100pbw of coal ash, lpbw of alumina clinker, lpbw of sodium carbonate, lpbw of quick lime, 1.2pbw of magnesium oxide, 1.8pbw of magnesium chloride, 0.5pbw of calcium lignosulphonate, and 0.5pbw of condensate of naphthalene sulfonate and formaldehyde, wherein, the content of Na 2
SO
4 in the condensate of naphthalene sulfonate and formaldehyde is <3%, and the alumina clinker is composed of the following ingredients, in weight percentage: 94 wt% of sodium aluminate, 4 wt% of aluminum oxide, and 2 wt% of calcium aluminosilicate, stir the mixed powder at 3,000±100rpm of rotation speed by a stirrer for 3 min., to form blended powder; finally, add the blended powder in the dry-blending mixer B into the uniform foam solution in the special-purpose blending container A, and stir the mixture at 12,000±500rpm of rotation speed by a stirrer for 2 min., to form blended grout; then, keep still the grout to produce foams, so as to obtain the coal ash solidified foam material for preventing spontaneous combustion of coal. Inject the prepared coal ash solidified foam fluid for preventing spontaneous combustion of coal with a 3MPa ground mobile injection pump through a conveying pipeline into surface cracks to be sealed in a coal field, to cover the coal mass, reduce and control air leakage, so as to prevent spontaneous combustion of the coal. Embodiment 3: first, add 60pbw of water, 0.2pbw of ethylene glycol butyl ether, 0.3pbw of nano-silicon, and 0.5pbw of hydroxyethyl cellulose into a special-purpose blending container A, stir the mixed solution at 3,000+100rpm of rotation speed by a stirrer for 2min., to form a uniform foam solution; then, in a dry-blending mixer B, add 100pbw of coal ash, 2pbw of alumina clinker, lpbw of sodium carbonate, 2pbw of quick lime, 1.6pbw of magnesium oxide, 2.4pbw of magnesium chloride, lpbw of calcium lignosulphonate, and lpbw of condensate of naphthalene sulfonate and formaldehyde, wherein, the content of Na2SO4 in the condensate of naphthalene sulfonate and formaldehyde is <3%, and the alumina clinker is composed of the following ingredients, in weight percentage: 94 wt% of sodium aluminate, 4 wt% of aluminum oxide, and 2 wt% of calcium aluminosilicate, stir the mixed powder at 3,000±100rpm of rotation speed by a stirrer for 3 min., to form blended powder; finally, add the blended powder in the dry-blending mixer B into the uniform foam solution in the special-purpose blending container A, and stir the 5 mixture at 12,000500rpm of rotation speed by a stirrer for 2min., to form blended grout; then, keep still the grout to produce foams, so as to obtain the coal ash solidified foam material for preventing spontaneous combustion of coal. Inject the prepared coal ash solidified foam fluid for preventing spontaneous combustion of coal with a 2MPa underground mobile injection pump through a conveying pipeline into the bore-holes in an underground mined-out area. The coal ash solidified foam fluid will reach to the surface of the loose coal mass and isolate the coal from oxygen, and thereby prevent spontaneous combustion of the coal.
Claims (2)
1. A coal ash solidified foam material for preventing spontaneous combustion of coal, wherein, the coal ash solidified foam material comprising the following ingredients, in parts by weight (pbw): 40-60pbw of water, 100pbw of coal ash, 25-40pbw of compound powder for chemically self-producing gas, 3-5pbw of accelerator, 2-4pbw of activator, 1-2pbw of water reducer, and lpbw of compound foam stabilizer; the compound powder for chemically self-producing gas is prepared at the following blending ratio, in parts by weight (pbw): 24-35pbw of semi-hydrated calcium sulfate and 1-5pbw of sodium bicarbonate, which have a chemical reaction with each other and produce an inert gas (i.e., carbon dioxide gas), and thereby create foams in grout; the accelerator is prepared at the following blending ratio, in pbw: 1-2pbw of alumina clinker, lpbw of sodium carbonate, and 1-2pbw of quick lime, wherein, the alumina clinker is composed of the following ingredients, in weight percentage: 94wt% of sodium aluminate, 4wt% of aluminum oxide, and 2wt% of calcium aluminosilicate; the activator is prepared at the following blending ratio, in pbw: 0.8-1.6pbw of magnesium oxide and 1.2-2.4pbw of magnesium chloride; the water reducer is prepared at the following blending ratio, in pbw: 0.5-lpbw of calcium lignosulphonate and 0.5-lpbw of condensate of naphthalene sulfonate and formaldehyde, wherein, in the condensate of naphthalene sulfonate and formaldehyde, the content of Na 2 SO 4 is <3%; the compound foam stabilizer is prepared at the following blending ratio, in pbw: 0.2pbw of ethylene glycol butyl ether, 0.3pbw of nano-silicon, and 0.5pbw of hydroxyethyl cellulose; the solidification time can be adjusted by adjusting the weight fractions among the accelerator, activator, and water reducer.
2. A method for preparing the coal ash solidified foam material for preventing spontaneous combustion of coal as set forth in claim 1, comprising: step 1: adding 40-60pbw of water, 0.2pbw of ethylene glycol butyl ether, 0.3pbw of nano-silicon, and 0.5pbw of hydroxyethyl cellulose into a special-purpose blending container A, and stirring the mixed solution at 3,000±100rpm of rotation speed by a stirrer for 2min., to form a uniform foam solution; step 2: adding 100pbw of coal ash, 1-2pbw of alumina clinker, lpbw of sodium carbonate, 1-2pbw of quick lime, 0.8-1.6pbw of magnesium oxide, 1.2-2.4pbw of magnesium chloride, 0.5-lpbw of calcium lignosulphonate, and 0.5-lpbw of condensate of naphthalene sulfonate and formaldehyde into a dry-blending mixer B, and stirring the mixed powder at 3,000±100rpm of rotation speed by a stirrer for 3min., to form blended powder; step 3: adding the blended powder prepared in the dry-blending mixer B into the uniform foam solution in the special-purpose blending container A, and stirring the mixture at 12,000±500rpm of rotation speed by a stirrer in the special-purpose blending container A for 2min., to form blended grout, keeping still the blended grout to produce foams, so as to produce the coal ash solidified foam material for preventing spontaneous combustion of coal.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310298775.7A CN103387410B (en) | 2013-07-17 | 2013-07-17 | Fly ash solidified foam material for preventing coal spontaneous combustion and preparation method thereof |
CN201310298775.7 | 2013-07-17 | ||
PCT/CN2014/074075 WO2015007104A1 (en) | 2013-07-17 | 2014-03-26 | Coal ash solidification foam material used for prevention and treatment of spontaneous combustion of coal and preparation method therefor |
Publications (2)
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AU2014292751A1 true AU2014292751A1 (en) | 2015-02-19 |
AU2014292751B2 AU2014292751B2 (en) | 2016-02-25 |
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AU2014292751A Ceased AU2014292751B2 (en) | 2013-07-17 | 2014-03-26 | Coal ash solidification foam material used for prevention and treatment of spontaneous combustion of coal and preparation method therefor |
Country Status (6)
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CN (1) | CN103387410B (en) |
AU (1) | AU2014292751B2 (en) |
CA (1) | CA2879374C (en) |
RU (1) | RU2588588C2 (en) |
WO (1) | WO2015007104A1 (en) |
ZA (1) | ZA201408380B (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103387410B (en) * | 2013-07-17 | 2014-10-15 | 中国矿业大学 | Fly ash solidified foam material for preventing coal spontaneous combustion and preparation method thereof |
CN103964766B (en) * | 2014-04-29 | 2016-09-14 | 胡相明 | Flyash-cement foam material of preventing and treating spontaneous combustionof coal and preparation method thereof |
CN104446624B (en) * | 2014-11-26 | 2016-08-17 | 高万水 | Colliery reinforces compositions and using method thereof and purposes with inorganic foamed filling |
CN106437817B (en) * | 2015-08-12 | 2019-01-04 | 华北科技学院 | It is a kind of to have the coal road filling colloidal materials and its application method for relapsing function |
CN108678801B (en) * | 2018-05-25 | 2020-04-14 | 中国矿业大学 | Blocking type slurry material for preventing and treating coal spontaneous combustion fly ash alkali metal chelation hardening |
CN110564391B (en) * | 2019-08-31 | 2021-06-29 | 湖南科技大学 | Nano microbubble material for in-situ consolidation modification of pulverized coal and preparation method thereof |
CN111153657A (en) * | 2020-02-21 | 2020-05-15 | 济南鸿运保温材料有限公司 | Building energy-saving foaming insulation board and preparation method thereof |
CN113213821B (en) * | 2021-06-07 | 2022-03-25 | 中国矿业大学 | High-stability colloidal foam for inhibiting self-heating of oxidation of loose coal body and preparation method thereof |
CN115120922B (en) * | 2022-06-27 | 2023-05-16 | 中煤科工集团西安研究院有限公司 | Modified gangue-based fire prevention and extinguishment three-phase foam material, preparation method and application |
CN115337588B (en) * | 2022-09-16 | 2023-06-16 | 中国矿业大学 | Fly ash-based fire preventing and extinguishing material for mineralizing and sequestering carbon dioxide and preparation method thereof |
CN115849839B (en) * | 2022-11-24 | 2023-10-31 | 湖南科技大学 | Repairing foam for goaf closed fracture plugging and preparation method thereof |
CN115925381B (en) * | 2022-11-28 | 2024-06-25 | 中国矿业大学 | Calcium-based solid waste light composite slurry for disaster reduction and carbon dioxide sequestration of coal mine and preparation and use methods thereof |
CN115970220A (en) * | 2023-02-07 | 2023-04-18 | 湖南科技大学 | Inorganic curing foam for preventing and treating forest fire and preparation method thereof |
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US3973973A (en) * | 1972-08-29 | 1976-08-10 | Sam Leslie Leach | Lightweight aggregate and composition and method of making same |
SU1071766A1 (en) * | 1982-10-27 | 1984-02-07 | Всесоюзный научно-исследовательский институт горноспасательного дела | Composition for preventive self-inflammation of coal |
AUPP138298A0 (en) * | 1998-01-19 | 1998-02-05 | Inglis Industries Pty Ltd | Fire resistant panels and doors and methods for their production |
RU2222699C2 (en) * | 2002-02-11 | 2004-01-27 | ФГУП Прокопьевский отдельный военизированный горноспасательный отряд | Fire-extinguishing method for endogenous fires into loosened coal massifs |
WO2006070960A1 (en) * | 2004-12-31 | 2006-07-06 | Kyung Dong Ceratech Co., Ltd. | Covering composite for fire resistance and sound absorption |
CN101265811A (en) * | 2008-04-28 | 2008-09-17 | 中国矿业大学 | Preparation method for multiphase gel foam for controlling coal autogeneous combustion |
CN101787289B (en) * | 2010-01-07 | 2012-09-05 | 中国矿业大学 | Method for preparing fireproof and explosion suppression pulverized fuel ash carbon dioxide material |
AU2012318528A1 (en) * | 2011-10-07 | 2014-05-22 | Boral Ip Holdings (Australia) Pty Limited | Inorganic polymer/organic polymer composites and methods of making same |
CN102701672A (en) * | 2012-05-25 | 2012-10-03 | 徐州中国矿大岩土工程新技术发展有限公司 | Foam filling body for coal mine goaf filling and preparation filling method of foam filling body |
CN102701671A (en) * | 2012-05-25 | 2012-10-03 | 徐州中国矿大岩土工程新技术发展有限公司 | High-content coal ash foam filling body and preparation method thereof |
CN102718548B (en) * | 2012-06-22 | 2014-09-03 | 张书源 | Coal ash sintered brick and sintering process |
CN103387410B (en) * | 2013-07-17 | 2014-10-15 | 中国矿业大学 | Fly ash solidified foam material for preventing coal spontaneous combustion and preparation method thereof |
-
2013
- 2013-07-17 CN CN201310298775.7A patent/CN103387410B/en active Active
-
2014
- 2014-03-26 WO PCT/CN2014/074075 patent/WO2015007104A1/en active Application Filing
- 2014-03-26 AU AU2014292751A patent/AU2014292751B2/en not_active Ceased
- 2014-03-26 CA CA2879374A patent/CA2879374C/en not_active Expired - Fee Related
- 2014-03-26 RU RU2014143658/03A patent/RU2588588C2/en not_active IP Right Cessation
- 2014-11-13 ZA ZA2014/08380A patent/ZA201408380B/en unknown
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Publication number | Publication date |
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CA2879374A1 (en) | 2015-01-22 |
RU2588588C2 (en) | 2016-07-10 |
ZA201408380B (en) | 2016-02-24 |
CN103387410B (en) | 2014-10-15 |
CA2879374C (en) | 2017-05-02 |
CN103387410A (en) | 2013-11-13 |
AU2014292751B2 (en) | 2016-02-25 |
WO2015007104A1 (en) | 2015-01-22 |
RU2014143658A (en) | 2016-05-20 |
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