CN106966669A - A kind of foam concrete and preparation method thereof - Google Patents

A kind of foam concrete and preparation method thereof Download PDF

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Publication number
CN106966669A
CN106966669A CN201710309270.4A CN201710309270A CN106966669A CN 106966669 A CN106966669 A CN 106966669A CN 201710309270 A CN201710309270 A CN 201710309270A CN 106966669 A CN106966669 A CN 106966669A
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foam concrete
powder
gangue
dispersant
binding agent
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CN106966669B (en
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不公告发明人
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Chongqing Chaoguo Concrete Co ltd
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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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04—Portland cements
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/06—Aluminous cements
    • 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
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/022—Agglomerated materials, e.g. artificial aggregates agglomerated by an organic binder
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/0016—Granular materials, e.g. microballoons
    • C04B20/002—Hollow or porous granular materials
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/023—Chemical treatment
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02—Treatment
    • C04B20/04—Heat treatment
    • 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
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
    • 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
    • C04B2111/40—Porous or lightweight materials
    • 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

Abstract

The invention discloses a kind of foam concrete and preparation method thereof, including component be：Cement, mineral powder, flyash and water, in addition to following components：Foamed material and binding agent；The mass fraction of each component is：160 ~ 280 parts of cement, 60 ~ 140 parts of mineral powder, 60 ~ 180 parts of flyash, 120 ~ 210 parts of water, 110 ~ 180 parts of foamed material, 12 ~ 25 parts of binding agent, 10 ~ 20 parts of foaming agent, 10 ~ 20 parts of dispersant.It has good and stable compression strength.

Description

A kind of foam concrete and preparation method thereof
Technical field
The present invention relates to technical field of concrete, more specifically, it relates to a kind of stable resistance to compression foam concrete and its Preparation method.
Background technology
In recent years, domestic that energy-conserving and environment-protective and the requirement of environmental protection are improved constantly, the energy conservation of dwelling construction is continuous Deeply, energy conservation standard is improved constantly, and introduction develops many new power-saving technologies and material, is widelyd popularize in residential housing Use.Foam concrete is as a kind of profit is useless, environmental protection, energy-conservation, fire prevention, cheap new energy-saving material, it possesses special many Pore structure, excellent heat-insulating property.The production of foam concrete can largely utilize the industrial wastes such as flyash, slag, stone flour, subtract The discharge of waste product is lacked, ecological condition can be effectively improved, preserved the ecological environment, its economic benefit and social benefit are all very aobvious Write.However, the defect of foam concrete generally existing lower compressive strength, have impact on it and widely applies and promote.
Existing Application No. 201010264056.X Chinese patent (documents 1) disclose a kind of foam concrete and Preparation method, it includes cement, mineral powder, flyash, water, waterproofing agent, fiber, auxiliary material and foaming agent, the foam concrete Compression strength is between 0.3~4MPa；Application No. 201210561385.X Chinese patent (documents 2) discloses one kind Foam concrete, it includes extra material, cementing material and chemical adjuvant, and the cementing material includes clinker, oxidation Calcium and gelatine powder, the mean compressive strength of the foam concrete is 5.2MPa.The pressure resistance of foam concrete in documents 1 Degree is unstable, and wherein 0.3MPa is also not up to the minimum strength grade of foam concrete, is unfavorable for input construction；Documents 2 Although in foam concrete with good compression strength, be also not reaching to the strength grade of normal concrete, it is unfavorable Widely apply and promote in it.
The content of the invention
In view of the deficienciess of the prior art, stablize resistance to compression foam concrete it is an object of the invention to provide a kind of, its With good and stable compression strength.
A kind of stable resistance to compression foam concrete, including component be：Cement, mineral powder, flyash and water, in addition to it is following Component：Foamed material and binding agent；The mass fraction of each component is：160~280 parts of cement, 60~140 parts of mineral powder, fine coal 60~180 parts of ash, 120~210 parts of water, 110~180 parts of foamed material, 12~25 parts of binding agent, 10~20 parts of foaming agent, point 10~20 parts of powder.
The foamed material is any one in graphite, ceramic material, sintered foamed metal or two or more mixing Thing.
The foaming agent be alkyl sulfonic ester, hydroxyalkyl ether sulphonic acid ester, alkyl ether sulfonates, hydroxyalkyl ether sulfuric ester, α- In alkene sulfonic acid ester, alkyl benzene sulfonic acid ester, alkyl ether sulphate, alpha-olefin sulfuric ester, alkylbenzene sulfuric ester any one or Two or more mixtures.
The binding agent is water-proof adhesive；The cement is at least one of portland cement, sulphate aluminium cement； The dispersant is one kind in allyl ester ether, allyl polyglycol, acrylamide, methylpropene sodium sulfonate.
The mineral powder is industrial tailings powder, dicalcium powder, silica flour, slag, volcanic ash, at least one of ureaformal dehyde resin glue.
Also include 20~40 parts of gangue.
The preparation method of above-mentioned stable resistance to compression foam concrete, comprises the following steps：
Step 1：Add dispersant in foamed material again first to stir, reuse binding agent and seal the hole of foamed material, Finally dry, obtain product A；
Step 2：By gangue is broken, ball milling and activation process is carried out, obtain product B
Step 3：Cement, mineral powder, flyash and foaming agent are put into container, after being stirred with agitator, then step is poured into Product B obtained by the product A and step 2 of rapid 1 gained is mixed, and after stirring, is eventually adding water and is stirred uniformly, stand Paving is to construction surface, natural levelling, and after intensity to be achieved, the stable resistance to compression foam concrete of shaping is formed after maintenance.
The step 2 is that gangue is crushed using jaw crusher, and the gangue after then crushing is placed in ball Ball milling in grinding machine, obtains colliery powder；Colliery powder is placed in Muffle furnace, protected under conditions of temperature is 700 DEG C~900 DEG C Warm 2h~3h carries out the colliery powder i.e. product B after being activated after activation process, natural cooling.
Also include 20~40 parts of 20~40 parts of prestox polyhedral oligomeric silsesquioxane and glass fibre.
The preparation method of above-mentioned stable resistance to compression foam concrete, comprises the following steps：
Step 1：Add dispersant in foamed material again first to stir, reuse binding agent and seal the hole of foamed material, Finally dry, obtain product A；
Step 2：Using gamma-aminopropyl-triethoxy-silane as coupling agent, glass fibre is added second by polyurethane as film forming agent In alcohol, mix, ultrasonic 10min, dry 4h at 120 DEG C, surface treated E- glass fibres are obtained, then by E- glass Glass fiber and the mixing of prestox polyhedral oligomeric silsesquioxane, stirring at low speed, add the granulation of double screw extruder melt blending, Obtain product B；
Step 3：Gangue is crushed using jaw crusher, the gangue after then crushing is placed in ball in ball mill Mill, obtains colliery powder；Colliery powder is placed in Muffle furnace, 2h~3h is incubated under conditions of temperature is 700 DEG C~900 DEG C Carry out the colliery powder i.e. product C after being activated after activation process, natural cooling；
Step 4：Cement, mineral powder, flyash and foaming agent are put into container, after being stirred with agitator, then step is poured into Product C obtained by product A, the product B of step 2 gained and the step 3 of rapid 1 gained is mixed, and after stirring, is eventually adding Water is stirred uniformly, is paved to construction surface, natural levelling, after intensity to be achieved, and the stable resistance to compression of shaping is formed after maintenance Foam concrete.
Compared with prior art, beneficial effects of the present invention：
1. profit that the foam concrete produced by the present invention remains conventional foam concrete is useless, environmental protection, energy-conservation, fire prevention, low Honest and clean advantage, also add the advantage not available for conventional foam concrete：Good and stable compression strength.
2. the present invention provides a new thinking for the preparation of foam concrete, the present invention is using graphite, ceramic material Or sintered foamed metal etc. is as foamed material, to substitute the space in conventional foam concrete.
3. the foamed materials such as graphite, ceramic material, sintered foamed metal typically all have good heat conductivility, it is unfavorable for The heat-insulating property of foam concrete, but bonded the space on the surface of foam concrete by water-proof adhesive, prevent Its heat conduction, and then add the heat-insulating property of the present invention.
4. first being disperseed foamed material using dispersant, prevent because foamed material directly carries out hole using binding agent Seal and cause the particle of foamed material than it is larger, even stick into one and stick together, and then prevent obtained stable resistance to compression foam to mix The occurrence of solidifying soil is uneven, compression strength is low.
5. add foaming agent etc. after activating at high temperature using gangue to be formulated, it is possible to increase its it is additional using value and Environmental pollution is reduced, obtained foam concrete compression strength is high, meets construction material requirement.
6.E- glass fibres are worked in coordination with prestox polyhedral oligomeric silsesquioxane, and wherein E- fiberglass surfacings have More polyamino, reacts with the prestox polyhedral oligomeric silsesquioxane (poss) containing epoxy radicals, nano level poss Occurs embedding company with glass fibre, equivalent to the prestox polyhedral oligomeric silsesquioxane with dots structure by thick line structure E- glass fibres are wrapped, and are greatly improved anti-flammability and compression strength.
Embodiment
Embodiment one：
Using portland cement 160Kg, industrial tailings powder 60Kg, coal powder 60Kg, water 120Kg, graphite 110Kg, gangue 20Kg, binding agent 12Kg, foaming agent 10Kg, dispersant 10Kg；
The binding agent is water-proof adhesive；The foaming agent is alkyl sulfonic ester；The dispersant is allyl ester ether；
The sample one of the stable resistance to compression foam concrete of making.
Embodiment two：
Using sulphate aluminium cement 280Kg, dicalcium powder 140Kg, coal powder 180Kg, water 210Kg, ceramic material 180Kg, bastard coal Stone 40Kg, binding agent 25Kg, foaming agent 20Kg, dispersant 18Kg；
The binding agent is water-proof adhesive；The foaming agent is hydroxyalkyl ether sulphonic acid ester；The dispersant is the poly- second of pi-allyl Glycol；The sample two of the stable resistance to compression foam concrete of making.
Embodiment three：
Using portland cement 180Kg, industrial tailings powder 70Kg, coal powder 80Kg, water 140Kg, sintered foamed metal 120Kg, Gangue 25Kg, binding agent 14Kg, foaming agent 12Kg, dispersant 12Kg；
The binding agent is water-proof adhesive；The foaming agent is alkyl ether sulfonates；The dispersant is acrylamide；
The sample three of the stable resistance to compression foam concrete of making.
Example IV：
Using portland cement 260Kg, industrial tailings powder 130Kg, coal powder 170Kg, water 200Kg, graphite 70Kg, ceramic material 100Kg, gangue 35Kg, binding agent 22Kg, foaming agent 18Kg, dispersant 18Kg；
The binding agent is water-proof adhesive；The foaming agent is α-olefin sulfonate；The dispersant is methacrylic sulfonic acid Sodium；
The sample four of the stable resistance to compression foam concrete of making.
Embodiment five：
Using portland cement 220Kg, industrial tailings powder 100Kg, coal powder 120Kg, water 160Kg, graphite 75Kg, sintered foam Metal 85Kg, gangue 30Kg, binding agent 18Kg, foaming agent 15Kg, dispersant 15Kg,
The binding agent is water-proof adhesive；The foaming agent is alkyl benzene sulfonic acid ester；The dispersant is allyl ester ether；
The sample five of the stable resistance to compression foam concrete of making.
The preparation method of embodiment one to five is as follows:
Step 1：Add dispersant in foamed material again first to stir, reuse binding agent and seal the hole of foamed material, Finally dry, obtain product A；
Step 2：By gangue is broken, ball milling and activation process is carried out, obtain product B；
Step 3：Cement, mineral powder, flyash and foaming agent are put into container, after being stirred with agitator, then step is poured into Product B obtained by the product A and step 2 of rapid 1 gained is mixed, and after stirring, is eventually adding water and is stirred uniformly, stand Paving is to construction surface, natural levelling, and after intensity to be achieved, the stable resistance to compression foam concrete of shaping is formed after maintenance.
The step 2 is that gangue is crushed using jaw crusher, and the gangue after then crushing is placed in ball Ball milling in grinding machine, obtains colliery powder；Colliery powder is placed in Muffle furnace, protected under conditions of temperature is 700 DEG C~900 DEG C Warm 2h~3h carries out the colliery powder i.e. product B after being activated after activation process, natural cooling.
Embodiment six：
Using portland cement 160Kg, industrial tailings powder 130Kg, coal powder 120Kg, water 150Kg, ceramic material 75Kg, sintering Foam metal 100Kg, gangue 30Kg, binding agent 15Kg, foaming agent 18Kg, dispersant 15Kg, prestox polyhedral oligomeric times Half siloxanes 20Kg, glass fibre 20Kg；
The binding agent is water-proof adhesive；The foaming agent is that alkyl sulfonic ester and alkyl benzene sulfonic acid ester press 1：2 mixing；It is described Dispersant is allyl ester ether；
The sample six of the stable resistance to compression foam concrete of making.
Embodiment seven：
Using portland cement 160Kg, industrial tailings powder 130Kg, coal powder 120Kg, water 150Kg, graphite 50Kg, ceramic material 50Kg, sintered foamed metal 75Kg, gangue 30Kg, binding agent 15Kg, foaming agent 18Kg, dispersant 15Kg, prestox multiaspect Body oligomeric silsesquioxane 40Kg, glass fibre 40Kg；
The binding agent is water-proof adhesive；The foaming agent is that alkyl ether sulfonates and alkylbenzene sulfuric ester press 1：4 mixing；Institute Dispersant is stated for allyl ester ether；
The sample seven of the stable resistance to compression foam concrete of making.
Embodiment eight：
Using portland cement 220Kg, industrial tailings powder 100Kg, coal powder 120Kg, water 160Kg, graphite 75Kg, sintered foam Metal 85Kg, gangue 30Kg, binding agent 18Kg, foaming agent 15Kg, dispersant 15Kg, prestox polyhedral oligomeric silsesquioxane Alkane 30Kg, glass fibre 30Kg；
The binding agent is water-proof adhesive；The foaming agent is alkyl ether sulfonates, alkyl ether sulphate, alpha-olefin sulfuric ester By 1：2：1 mixing；The dispersant is allyl ester ether；
The sample eight of the stable resistance to compression foam concrete of making
The preparation method of embodiment six to eight is as follows：
Step 1：Add dispersant in foamed material again first to stir, reuse binding agent and seal the hole of foamed material, Finally dry, obtain product A；
Step 2：Using gamma-aminopropyl-triethoxy-silane as coupling agent, glass fibre is added second by polyurethane as film forming agent In alcohol, mix, ultrasonic 10min, dry 4h at 120 DEG C, surface treated E- glass fibres are obtained, then by E- glass Glass fiber and the mixing of prestox polyhedral oligomeric silsesquioxane, stirring at low speed, add the granulation of double screw extruder melt blending, Obtain product B；
Step 3：Gangue is crushed using jaw crusher, the gangue after then crushing is placed in ball in ball mill Mill, obtains colliery powder；Colliery powder is placed in Muffle furnace, 2h~3h is incubated under conditions of temperature is 700 DEG C~900 DEG C Carry out the colliery powder i.e. product C after being activated after activation process, natural cooling.
Step 4：Cement, mineral powder, flyash and foaming agent are put into container, after being stirred with agitator, then fallen Enter the product C obtained by the product A obtained by step 1, the product B obtained by step 2 and step 3 to mix, after stirring, finally Addition water is stirred uniformly, is paved to construction surface, natural levelling, and after intensity to be achieved, the stabilization of shaping is formed after maintenance Resistance to compression foam concrete.
Comparative example：
Portland cement 100Kg, dicalcium powder 50Kg, coal powder 60Kg, water 70Kg are put into container, stirred with agitator Afterwards, hydrogen peroxide 13Kg mixings are poured into, paves rapidly to construction surface, treats nature levelling, stand foaming is finished, the shape after maintenance Into the traditional foam concrete of shaping.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (3)

1. a kind of stable resistance to compression foam concrete, it is characterised in that the component of foam concrete is：Portland cement 160Kg, Industrial tailings powder 60Kg, coal powder 60Kg, water 120Kg, graphite 110Kg, gangue 20Kg, binding agent 12Kg, foaming agent 10Kg, Dispersant 10Kg；
The binding agent is water-proof adhesive；The foaming agent is alkyl sulfonic ester；The dispersant is allyl ester ether；
Its preparation process is as follows：
Step 1：Add dispersant in graphite again first to stir, reuse binding agent and seal the hole of graphite, finally dry, Obtain product A；
Step 2：By gangue is broken, ball milling and activation process is carried out, obtain product B；
Step 3：Portland cement, industrial tailings powder, coal powder and foaming agent are put into container, stirred with agitator Afterwards, then the product B that pours into obtained by product A and step 2 obtained by step 1 is mixed, after stirring, it is eventually adding water progress Stir, pave to construction surface, natural levelling, after intensity to be achieved, the stable resistance to compression foam that shaping is formed after maintenance is mixed Solidifying soil.
2. stable resistance to compression foam concrete according to claim 1, it is characterised in that also including prestox polyhedral oligomeric 20~40 parts of 20~40 parts of silsesquioxane and glass fibre.
3. the preparation method of stable resistance to compression foam concrete according to claim 2, it is characterised in that the step 2 is Gangue is crushed using jaw crusher, the gangue after then crushing is placed in ball milling in ball mill, obtains bastard coal Stone flour；Colliery powder is placed in Muffle furnace, insulation 2h~3h is carried out at activation under conditions of temperature is 700 DEG C~900 DEG C Colliery powder i.e. product B after being activated after reason, natural cooling.
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