CN104650664B - A kind of mine laneway wall gas plugging coating - Google Patents
A kind of mine laneway wall gas plugging coating Download PDFInfo
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- CN104650664B CN104650664B CN201510078403.2A CN201510078403A CN104650664B CN 104650664 B CN104650664 B CN 104650664B CN 201510078403 A CN201510078403 A CN 201510078403A CN 104650664 B CN104650664 B CN 104650664B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
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Abstract
The present invention relates to a kind of technical field of mine safety, more particularly to a kind of mine laneway wall gas plugging coating；Gas density in a kind of reduction mine laneway is provided, makes that Gas are uniform, a kind of gas plugging coating of reduces cost；A kind of mine laneway wall gas plugging coating, it is 40~55: 100 compositions by the mass percent of liquid material and powder, described liquid material is flexible polymer emulsion, described flexible polymer emulsion is anionic acrylic ester emulsion or styrene-acrylic emulsion, and the powder is constituted according to following percentage by weight：Superfined flyash 50~80, cement 0~30, graphite 3~5, carbon black 0~2, chlorinated paraffin 7~12, aluminium hydroxide 3~8；The particle diameter of the superfined flyash is 1~10 μm, and described cement is 325# portland slag cements or more high-mark cement；Present invention is mainly applied to colliery aspect.
Description
Technical field
The present invention relates to a kind of technical field of mine safety, more particularly to a kind of mine laneway wall gas plugging coating.
Background technology
China is a big coal country, and gas is the high-quality clear energy sources with the common association of coal, is also that underground coal mine is opened
Adopt the major safety risks of driving face.In order to ensure Gas and behaviour in underground coal mine exploitation tunneling process mine laneway
Make face safety, current coal mining enterprise basic equipment Measuring System of Gas and ventilating system, due to coal mine laneway wall
Face Gas concentration is extremely uneven, and the data of existing gas detecting device detection are not accurate enough, to ensure safety in production, lead to
Wind system almost round-the-clock running at full capacity.According to statistics, blower fan power consumption accounts for the 15% to 20% of full mine total power consumption, has
Colliery is even up to more than 30%.Therefore the accurate size and rule for grasping gas flowing in coal layer, is rationally to carry out mine to lead to
Wind designs the important evidence with Comprehensive Gas Control.
Patent CN101781497A discloses a kind of underground gas plugging coating in coal mine, and being sprayed on rib can prevent gas
Seepage, the powder of the coating is mainly cement, silica flour, talcum powder, flyash etc., and wherein flyash (floating bead) addition is only
5~10%.It is published in《Total utilization of PCA》On " flyash grinds to underground coal mine mine laneway sprayed on material performance impact
Study carefully " in coal is prepared instead of 40% or so quartz powder filler using the decarburization flyash in " flyash Floatation of Removal Carbon experimental study "
Sprayed on material under mine, it is functional.But flyash is using floatation decarburization, it is necessary to add expensive emulsifying agent, collecting
Agent and foaming agent, flotation yield is 30~35%, and the decarburization flyash that obtains of flotation also needs the drying could to use, and operation is numerous
It is many；Decarburization flyash remained on surface after other flotation has the surfactants such as collecting agent and foaming agent, fly ash grain is existed
Easily reunite in coating and settle, coating dispersiveness is deteriorated.Therefore, it is necessary to be improved to prior art.
The content of the invention
In order in the presence of overcoming the shortcomings of prior art, there is provided one kind reduces gas density in mine laneway, makes gas
Gush out a kind of uniform, gas plugging coating of reduces cost.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of mine laneway wall gas plugging coating, is 40~55: 100 groups by the mass percent of liquid material and powder
Into.
Described liquid material is flexible polymer emulsion.
Described flexible polymer emulsion is anionic acrylic ester emulsion or styrene-acrylate emulsion.
The powder is constituted according to following percentage by weight：Superfined flyash 50~80, cement 0~30, graphite 3~5, charcoal
Black 0~2, chlorinated paraffin 7~12, aluminium hydroxide 3~8.
The gross weight of the superfined flyash and cement accounts for the 80% of powder；The graphite and carbon black are conductive filler, and
Gross weight accounts for the 5% of powder；The chlorinated paraffin and aluminium hydroxide are fire retardant, and gross weight accounts for the 15% of powder.
The particle diameter of the superfined flyash is 1~10 μm.
Described cement is 325# portland slag cements or more high-mark cement.
Constituted according to following mass percent when the coating is used：Water 25~40, liquid material 40~55, powder 100.
The present invention have the advantage that compared with prior art for：
The crack on rib top layer is blocked using sealant spraying rib, is slowed down and stabilization rib Gas, can provided
Stablize believable gas management condition；The sealant coating structure is fine and close, with good air-tightness, and caking property, water proofing property,
Stretch-resistance, antistatic behaviour, anti-flammability etc. meet relevant criterion, and change sealant to use coal base solid waste flyash is main powder
Body filler, therefore cost is less than like product on the market；Sealant spraying mine laneway rib slows down Gas with sluggishness, both
Gas is reduced to mine laneway and the discharge capacity of air, the live load of exhaust system is decreased, moreover it is possible to colliery is tunneled ore deposit
Gas speed tending to be steady everywhere in roadway road, creates a big uniform measuring environment.
Brief description of the drawings
Specific embodiment of the invention is described in further detail below by accompanying drawing.
Fig. 1 is the electron-microscope scanning figure of the test specimen of embodiment 1 in the present invention；
Fig. 2 is the electron-microscope scanning figure of the full cement of embodiment 1 in the present invention.
Specific embodiment
The present invention is described in further detail for example below combination accompanying drawing.
Embodiment 1
By superfined flyash 60kg, the portland slag cement 20kg marked as 325, chlorinated paraffin that particle diameter is 2.18 μm
10kg, aluminium hydroxide 5kg, graphite 3kg, carbon black 2kg are mixed and are powder；Flexible emulsion S400F 50kg are taken at the construction field (site) to fall
Enter grouting pump agitator tank, add 30kg water, after stirring at low speed is uniform, add above-mentioned powder, enter by continuing to stir
Row mine laneway wall spraying applies 1 work.
Testing result：
1) apparent property
Coating surface drying time 10min, does solid work time 7h, does solid work the smooth free from flaw of rear coating；
2) mechanical property
It is waterproof without treatment tensile strength 3.1MPa, elongation at break 83%, 0.3MPa 30min, meet GB/T23445-
2009《Polymer cement waterproof paint》Specified in standard；
3) coal peace test
Anti-flammability is tested：Alcolhol burner flaming combustion 2.1s, flameless combustion 8s, flame spread length 105-129mm；Alcohol sprays
Lamp flaming combustion 1.1s, flameless combustion 4.2s, flame spread length 162-198mm；
Antistatic test：Test specimen upper table surface resistance 1.14 × 104Ω, following table surface resistance 5.83 × 103Ω；
Anti-flammability and antistatic behaviour meet coal industry standard MT-113-1995《Underground mine use polymer product hinders
Combustion antistatic behaviour General Experimental Procedures and decision rule》Specified in require；
4) air-tightness
According to GB/T7755-2003《The measure of vulcanized rubber or thermoplastic elastomer gas permeability》Method, is carried out to test specimen
Pressure differential method gas permeation measures examination, and oxygen transit dose is 76.445cm3/m224h0.1MPa, infiltration coefficient be 3.841 ×
10-10cm3·cm/m2·s·cmHg.Contrast test, oxygen have been made with the test specimen of full cement (being not spiked with superfined flyash) simultaneously
Transit dose is 212.309cm3/m224h0.1MPa, infiltration coefficient is 10.67 × 10-10cm3·cm/m2·s·cmHg.Can
To find out, the gas permeability of the present embodiment test specimen is only 1/3rd of full cement specimen.In addition, with the film mentioned in document
The infiltration coefficient contrast of material, the present embodiment test specimen and plastic sheeting (3.15 × 10-10cm3·cm/m2ScmHg), poly- second
Alkene (3.0 × 10-10cm3·cm/m2ScmHg), PE films (3.222 × 10-10cm3·cm/m2ScmHg air-tightness)
Quite.
And then electron-microscope scanning analysis, as depicted in figs. 1 and 2, phase have been made respectively to the present embodiment test specimen and full cement specimen
Compare and can be seen that the densification of the present embodiment test specimen pattern homogeneous texture, only a small amount of tiny micropore development, and full cement specimen innings
Hole empty structure is larger after portion amplifies, and illustrate that the addition of superfined flyash optimizes the grade of feed particles and grade matches somebody with somebody, and improves
Powder particles and the compatibility of emulsion, effectively prevent the formation of crack and hole, and the air-tightness of material is improved conscientiously.
Embodiment 2
By superfined flyash 70kg, the portland slag cement 10kg marked as 325, chlorinated paraffin that particle diameter is 3.76 μm
12kg, aluminium hydroxide 3kg, graphite 5kg are mixed and are powder；Flexible emulsion S400F 50kg are taken at the construction field (site) pours into grouting pump
Agitator tank, adds 32kg water, after stirring at low speed is uniform, adds above-mentioned powder, and mine lane is carried out by continuing to stir
Road wall spraying construction.
Testing result：
1) apparent property
Coating surface drying time 12min, does solid work time 7h, does solid work rear coating free from flaw；
2) mechanical property
It is waterproof without treatment tensile strength 3.5MPa, elongation at break 80%, 0.3MPa 30min, meet GB/T23445-
2009《Polymer cement waterproof paint》Specified in standard；
3) coal peace test
Anti-flammability is tested：Alcolhol burner flaming combustion 2.2s, flameless combustion 11.4s, flame spread length 80-89mm；Alcohol
Blowtorch flaming combustion 1.1s, flameless combustion 8.2s, flame spread length 95-109mm；
Antistatic test：Test specimen following table surface resistance 1.1 × 103Ω, upper table surface resistance 3.8 × 104Ω；
Anti-flammability and antistatic behaviour meet coal industry standard MT-113-1995《Underground mine use polymer product hinders
Combustion antistatic behaviour General Experimental Procedures and decision rule》Specified in require；
4) air-tightness
According to GB/T7755-2003《The measure of vulcanized rubber or thermoplastic elastomer gas permeability》Method, is carried out to test specimen
Pressure differential method gas permeation measures examination, and oxygen transit dose is 77.862cm3/m224h0.1MPa, infiltration coefficient be 3.912 ×
10-10cm3·cm/m2·s·cmHg。
Embodiment 3
By superfined flyash 75kg, the portland slag cement 5kg marked as 325, chlorinated paraffin that particle diameter is 2.18 μm
7kg, aluminium hydroxide 8kg, graphite 3kg, carbon black 2kg are mixed and are powder；Flexible emulsion S400F 50kg are taken at the construction field (site) to fall
Enter grouting pump agitator tank, add 38kg water, after stirring at low speed is uniform, add above-mentioned powder, enter by continuing to stir
Row mine laneway wall spraying is constructed.
Testing result：
1) apparent property
Coating surface drying time 13min, does solid work time 7.5h, does solid work rear coating free from flaw；
2) mechanical property
Nowhere show tensile strength 3.4MPa, elongation at break 70%, 0.3MPa 30min are waterproof, meet GB/T23445-
2009《Polymer cement waterproof paint》Specified in standard；
3) coal peace test
Anti-flammability is tested：Alcolhol burner flaming combustion 1.2s, flameless combustion 8.7s, flame spread length 102-129mm；Alcohol
Blowtorch flaming combustion 1.2s, flameless combustion 4.1s, flame spread length 143-178mm；
Antistatic test：Test specimen upper table surface resistance 1.82 × 106Ω, following table surface resistance 2.45 × 105Ω；
Anti-flammability and antistatic behaviour meet coal industry standard MT-113-1995《Underground mine use polymer product hinders
Combustion antistatic behaviour General Experimental Procedures and decision rule》Specified in require；
4) air-tightness
According to GB/T7755-2003《The measure of vulcanized rubber or thermoplastic elastomer gas permeability》Method, is carried out to test specimen
Pressure differential method gas permeation measures examination, and oxygen transit dose is 82.472cm3/m224h0.1MPa, infiltration coefficient be 4.144 ×
10-10cm3·cm/m2·s·cmHg。
Claims (5)
1. a kind of mine laneway wall gas plugging coating, it is characterised in that：It is 40~55 by the mass ratio of liquid material and powder:
100 compositions, the powder is constituted according to following weight portion：Superfined flyash 50~80, cement 0~30, graphite 3~5, carbon black 0
~2, chlorinated paraffin 7~12, aluminium hydroxide 3~8, described liquid material is flexible polymer emulsion, and described flexible polymer emulsion is
Anionic acrylic ester emulsion or styrene-acrylate emulsion.
2. a kind of mine laneway wall gas plugging coating according to claim 1, it is characterised in that：The ultra-fine fine coal
The gross weight of ash and cement accounts for the 80% of powder；The graphite and carbon black are conductive filler, and gross weight accounts for the 5% of powder；Institute
It is fire retardant to state chlorinated paraffin and aluminium hydroxide, and gross weight accounts for the 15% of powder.
3. a kind of mine laneway wall gas plugging coating according to claim 1, it is characterised in that：The ultra-fine fine coal
The particle diameter of ash is 1~10 μm.
4. a kind of mine laneway wall gas plugging coating according to claim 1, it is characterised in that：Described cement is
325# portland slag cements or more high-mark cement.
5. a kind of mine laneway wall gas plugging coating according to claim 1, it is characterised in that the coating is used
When according to following weight portion constitute：Water 25~40, liquid material 40~55, powder 100.
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| CN201510078403.2A CN104650664B (en) | 2015-02-10 | 2015-02-10 | A kind of mine laneway wall gas plugging coating |
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| CN201510078403.2A CN104650664B (en) | 2015-02-10 | 2015-02-10 | A kind of mine laneway wall gas plugging coating |
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| CN104650664A CN104650664A (en) | 2015-05-27 |
| CN104650664B true CN104650664B (en) | 2017-07-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644823B (en) * | 2016-12-21 | 2023-03-28 | 山西大学 | Air tightness testing device and method for coal wall coating |
| CN109825268B (en) * | 2019-02-22 | 2020-12-25 | 中国矿业大学 | Mining composite thin spraying material and preparation and use method thereof |
| CN110540395A (en) * | 2019-09-26 | 2019-12-06 | 张园月 | Spraying material for coal mine underground roadway and preparation method |
| CN111808491A (en) * | 2020-07-22 | 2020-10-23 | 垣曲县宏远特种防水材料厂 | Roadway surface protection sealing material made of acrylate composite polymer emulsion modified inorganic material |
| CN112723833B (en) * | 2021-01-28 | 2022-06-03 | 山西大学 | Double seepage-proofing method based on coal-based solid waste |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619187A (en) * | 2008-06-30 | 2010-01-06 | 兖州煤业股份有限公司 | Bolt net coal road spraying material |
| CN101781497A (en) * | 2009-12-19 | 2010-07-21 | 山西潞安环保能源开发股份有限公司 | Underground gas plugging coating in coal mine |
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2015
- 2015-02-10 CN CN201510078403.2A patent/CN104650664B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619187A (en) * | 2008-06-30 | 2010-01-06 | 兖州煤业股份有限公司 | Bolt net coal road spraying material |
| CN101781497A (en) * | 2009-12-19 | 2010-07-21 | 山西潞安环保能源开发股份有限公司 | Underground gas plugging coating in coal mine |
Non-Patent Citations (2)
| Title |
|---|
| 炭系导电填料对瓦斯封堵材料性能影响研究;李超等;《环境科学与技术》;20130131;第36卷(第1期);第105-110页 * |
| 粉煤灰对煤矿井下巷道喷涂材料性能影响研究;马金元等;《粉煤灰综合利用》;20121231(第6期);表4,1.1实验原料部分 * |
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