CN102491732B - Method for producing artificial vesuvianite block by using coal gangue as raw material - Google Patents
Method for producing artificial vesuvianite block by using coal gangue as raw material Download PDFInfo
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- CN102491732B CN102491732B CN2011104176574A CN201110417657A CN102491732B CN 102491732 B CN102491732 B CN 102491732B CN 2011104176574 A CN2011104176574 A CN 2011104176574A CN 201110417657 A CN201110417657 A CN 201110417657A CN 102491732 B CN102491732 B CN 102491732B
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- coal gangue
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a method for producing an artificial vesuvianite block by using coal gangue as a raw material, which comprises the following steps: A, grinding; B, preparing materials; C, making a green block; D, drying; E, firing; and F, cooling. When used to treat the conventional coal gangue and recycle coal gangue slag, the method for producing the artificial vesuvianite block by using coal gangue as the raw material solves the environment protection problem and has the obvious advantages of environment protection, high efficiency, high speed, low energy consumption and good effect; secondary residual slag and waste gas and water are not generated in the whole treatment process, so the goal of zero emission of coal gangue slag is fulfilled; the produced artificial vesuvianite block with stable physical and chemical properties reaches the requirements of the standards JC/T945-2005 of the construction material industry and therefore can be widely used for decorating building bodies, building floors and walls, and the like; and the method also has the advantages of small investment, simple process and easy control, and facilitates the development and use of coal gangue slag of manufacturers.
Description
Technical field
The invention belongs to the waste utilization technical field, relate to the coal gangue recovery and reuse of waste, be specifically related to a kind of method of the artificial volcanized rock building block take coal gangue as raw material production.
Background technology
1, coal gangue is as the solid, liquid, gas three disasters various " industrial waste ", and resource has not only been wasted in its long-term stacking, accounts for and has pressed a large amount of soils, and polluted water source, soil and ambient air.Ecotope and resident's security of the lives and property in mining area have been had a strong impact on.
2, coal gangue is out piled near well head with exploitation or washing afterwards, grows this for a long time, has just formed waste dump, and these waste dumps are close to the Residential areas mostly, account for to have pressed a large amount of living lands and building site, and a large amount of forest lands and arable land.According to the statistics made by the departments concerned, the total burden of coal gangue that present China adds up to stack over the years is about 4,500,000,000 tons, 300,000,000 tons of year outputs, nearly 1600 of larger waste dumps, about 1.5 ten thousand mu of land occupation: and accumulating amount also increases with the speed of hundred million tons of annual 1.5-2.0.This has not only destroyed the ecotope in mining area; And the natural landscape that has affected the mining area has caused a series of societies and from heat problem.
3, coal gangue is stacked polluted source:
Contain the long-term rain of harmful elements process such as Ni, Cu, Zn, Pb, S, F, Cl in the coal gangue, avenge dripping dissolving, part harmful element in the coal gangue is changed in rivers, lake and the underground water with the earth's surface runoff, cause harmful element content increase in the water, the mineral such as virgin sulfur, realgar, ammonium chloride, thiamines stone, thenardite, alunogen, hexahydrite have also been produced in the coal gangue natural region, these mineral substance are subjected to rain, can make mining area water quality sclerosis, polluted source.
4, coal gangue is stacked contaminated soil:
Remove in the coal gangue and contain SO
2, A1
20
3, outside the major elements such as Pe, Mn, also have a small amount of toxic heavy metal such as Pb, Ga, Ti, Sn, V, Co etc., coal gangue is through wind, Exposure to Sunlight, the Differentiation such as drench with rain, Partial Elements is invaded in the soil, causes soil pollution.Simultaneously, the SO in the coal gangue
2And SO
3Sulfides is met the biochemical reaction of steeping in water for reconstitution, makes slowly acidifying of soil, and the spoiled soil fertility can not be grown plant.
5, coal gangue is stacked polluted air:
The air storage coal gangue accumulates over a long period, and the mining area suspended substance is increased greatly.Obnoxious flavour and the flue dust such as a large amount of CO, the SO of coal mine waste rock Natural excrement, NOX, the Air quality in severe contamination mining area.
6, the coal gangue hill unstability causes the gravity disaster:
The stability of coal gangue hill is restricted by the slip resistance characteristic of bastard coal clitter basis Rock And Soil, own structure, the shape of clitter and the factors such as water pressure in basic Rock And Soil space.The natural repose angle of the stacking of coal gangue is the 38-40 degree, surpasses this angular range or cause easily the gravity disaster when artificial excavation and rainfall amount intensity surpass underrange, such as rubble flow, coming down, cave in etc. causes casualties and property damage.Inner at coal gangue, the space is larger, produces amount of heat with the contact with air oxidation, especially in the sultry situation of summer high temperature, is blasted in coal gangue hill inside, and serious threat is to the Residents in Mining Area security of the lives and property.
The spoil slag of coal gangue is the solid waste of discharging in the production process, and it is that present discharge capacity is larger, and physical environment harm comparatively seriously is difficult to again one of major industry waste residue that utilizes.
Utilize in the field when coal gangue is directly used in preparation material of construction or stupalith at coal gangue, finished product become common earthenware brick or ceramic tile because firing temperature is different, and their volume to weight ratio exists: 2000Kg ~ 3000Kg/M
3
Natural volcanized rock (being commonly called as float stone or porous basalt) is a kind of functional type environment-friendly materials, is by the porous stone material that is of great rarity of volcanic glass, mineral and bubble formation after the volcanic explosion.The chemical ingredients of natural volcanized rock: SiO
2: 53.82%; CaO:8.36%; MgO:2.46%; Fe
2O
3, FeO:10.1 %; Al
2O
3: 16.89 %; K
2O:2.30 %; Na
2O:2.55%.
Natural volcanized rock has that hole is many, quality is light, intensity is high, insulation, heat insulation, sound-absorbing, fire prevention, acid and alkali-resistance, corrosion-resistant, and the advantage such as pollution-free, "dead", and it is desirable natural green, the building and ornament materials of environmental protection and energy saving.Its unit weight is at 400 ~ 1000 Kg/m
3, most volcanized rock all is blocky-shaped particle, only has the natural volcanized rock specification in small part area can reach 800mm * 600mm * 400mm, also will according to requirements again cut in actual use.
Natural volcanized rock can be widely used in indoor and outdoor metope and ground decoration and substitute traditional lithotome and artificial ceramic tile; Also can be used in a large number municipal square, road and roadbed masonry; The entity building wall of building construction.
Summary of the invention
The object of the present invention is to provide a kind of method of the artificial volcanized rock building block take coal gangue as raw material production, not only can recycle coal gangue, can also solve the pollution problem of coal gangue, provide simultaneously using value, free of contamination artificial volcanized rock building block.
For achieving the above object, the technical scheme that the present invention takes is: a kind of method of the artificial volcanized rock building block take coal gangue as raw material production is provided, it is characterized in that: may further comprise the steps:
A, mill, with wet-type ball mill coal gangue is milled into 120 ~ 200 order slurries;
Add the clay of slurry weight 30% ~ 50%, the raising agent of slurry weight 1% ~ 5%, the whipping agent of slurry weight 1% ~ 2%, molding adhesive and the auxiliary material of slurry weight 4% ~ 6% in the slurry that B, batching, steps A obtain, enter step C after stirring;
C, base carry out base with shaping equipment to the material that step B stirs;
D, drying, the blank that step C is made dries for subsequent use in physical environment;
E, burn till, the dried blank of step D is delivered to stove burn till; Firing temperature is 1000 ~ 1400 ℃, and firing time is greater than 3h;
Get the artificial volcanized rock building block of finished product after the blank cooling that F, cooling, step e are fired into.
SiO in the described coal gangue
2Weight percent be 26% ~ 58%.
Described steps A may further comprise the steps:
A1 adds first the tensio-active agent of coal gangue weight 0.1% ~ 0.5% in the coal gangue, then delivers to wet-type ball mill;
A2 sends the jet powder of coal gangue weight 10% into wet-type ball mill, and the mixing of materials that adds wet-type ball mill with steps A 1 is milled into 150 ~ 200 order slurries.
Described tensio-active agent is stearic acid or Phenylsulfonic acid.Described auxiliary material is the bauxitic clay of slurry weight 2% ~ 5% or the aluminium ore slag of slurry weight 5% ~ 20%.Described raising agent is wood shavings or vegetable fibre; Described whipping agent is hydrogen peroxide; Described molding adhesive is water glass or lignosulfite.
Described shaping equipment is hydrodynamic mo(u)lding press.
Among the described step D, blank dried in physical environment weight in wet base per-cent is less than 8% to the blank.
Described stove is tunnel furnace.
The blank that in the step F step e is fired into carries out gradual cooling down in the cooling zone of tunnel furnace, and the kiln discharge temperature is controlled at below 80 ℃.
The tensio-active agent that the present invention adopts is stearic acid or Phenylsulfonic acid, can be used for reducing the reunion of material and increase shredder calcining effect.
The calorific value of the jet powder that the present invention adopts is more than 5000 kilocalories/kilogram.
The raising agent that the present invention adopts is wood shavings or vegetable fibre, can be used for forming well-regulated gross porosity.
The whipping agent that the present invention adopts is the hydrogen peroxide of concentration 12%, can be used for forming random gross porosity.
The molding adhesive that the present invention adopts is ductility and the cohesiveness that water glass or lignosulfite can be used for increasing material; Water glass is the water glass of technical grade.
Al in the bauxitic clay that the present invention adopts
2O
3Content is more than 70%; Al in the aluminium ore slag
2O
3Content is more than 15%; Physical strength after bauxitic clay and aluminium ore slag can be used for increasing material and burn till.
Adopt the method for the artificial volcanized rock building block take coal gangue as raw material production provided by the invention that existing coal gangue slag is processed, have following beneficial effect:
1, the coal gangue slag is recycled, solved environmental issue, and have environment-friendly high-efficiency, speed is fast, energy consumption is low, effective remarkable advantage;
2, do not produce secondary residue and discarded, waste water in the whole treating processes, thereby realize coal gangue slag zero release target;
The artificial volcanized rock building block of 3, producing, physics and stable chemical performance reach the requirement of building material industry standard (JC/T 945-2005), can be widely used in constructing, building ground, wall decoration etc.;
4, in addition, also have the advantage that investment is little, technique simple, be convenient to control grasp, be convenient to the development and use of the coal gangue slag of manufacturing enterprise.
Embodiment
Below in conjunction with embodiment the present invention is described in detail, but they are not to further restriction of the present invention.
The method of the artificial volcanized rock building block take coal gangue as raw material production provided by the invention may further comprise the steps:
A, mill, with wet-type ball mill coal gangue is milled into 120 ~ 200 order slurries;
Add the clay of slurry weight 30% ~ 50%, the raising agent of slurry weight 1% ~ 5%, the whipping agent of slurry weight 1% ~ 2%, molding adhesive and the auxiliary material of slurry weight 4% ~ 6% in the slurry that B, batching, steps A obtain, enter step C after stirring;
C, base carry out base with shaping equipment to the material that step B stirs;
D, drying, the blank that step C is made dries for subsequent use in physical environment; Weight in wet base per-cent is less than 8% in the blank.
E, burn till, the dried blank of step D is delivered to stove burn till; Firing temperature is 1000 ~ 1400 ℃, and firing time is greater than 3h;
Get the artificial volcanized rock building block of finished product after the blank cooling that F, cooling, step e are fired into.
SiO in the coal gangue
2Weight percent be 26% ~ 58%.
Steps A may further comprise the steps:
A1 adds first the tensio-active agent of coal gangue weight 0.1% ~ 0.5% in the coal gangue, then delivers to wet-type ball mill;
A2 sends the jet powder of coal gangue weight 10% into wet-type ball mill, and the mixing of materials that adds wet-type ball mill with steps A 1 is milled into 150 ~ 200 order slurries.
Tensio-active agent is stearic acid or Phenylsulfonic acid.Auxiliary material is the bauxitic clay of slurry weight 2% ~ 5% or the aluminium ore slag of slurry weight 5% ~ 20%.Raising agent is wood shavings or vegetable fibre; Whipping agent is hydrogen peroxide; Molding adhesive is water glass or lignosulfite.
Preferred shaping equipment is hydrodynamic mo(u)lding press.
Preferred stove is tunnel furnace.
Step F is preferred embodiment carried out gradual cooling down for the blank that step e is fired in the cooling zone of tunnel furnace, the kiln discharge temperature is controlled at below 80 ℃.
Embodiment 1:
Preparation process: SiO in the coal gangue that present embodiment adopts
2Weight percent is 26%.
1, mills, add the stearic acid of coal gangue weight 0.1% in the coal gangue, increase runner milling calcining effect with the reunion that reduces material; Then delivering to wet-type ball mill mixes with the jet powder of coal gangue weight 5% and wears into 150 ~ 200 purpose slurries;
2, batching adds the clay of slurry weight 50%, the wood shavings of slurry weight 3%, the hydrogen peroxide of slurry weight 2%, the water glass of slurry weight 5%, the bauxitic clay of slurry weight 2% in the slurry that step 1 is made;
3, base is rolled into the adobe of 600mm * 240mm * 12mm after the material that adopts hydrodynamic mo(u)lding press that step 2 is made pushes;
4, drying, the adobe that step 3 is made are carried out nature and are dried that weight in wet base per-cent is less than 8% to the adobe;
5, burn till, the adobe that step 4 drying is obtained drops in the tunnel furnace, burns till, and firing temperature is 1000 ~ 1400 ℃, and firing time is 8h;
6, cooling, the adobe that step 5 is burnt till is carried out gradual cooling down in the cooling zone of tunnel furnace, and the kiln discharge temperature is controlled at below 80 ℃.
The unit weight of the artificial volcanized rock building block that the method that adopts present embodiment to provide prepares is 430 ~ 870Kg/m
3, the about 3520Kg/m of loose volume weight
3, water-intake rate is 11.7% ~ 17.03%, cylindrical compress strength is about 1.218Mpa, water ratio is about 1%, physical strength is about 5.08Mpa, hollow rate is about 48%.
Embodiment 2:
Preparation process: SiO in the coal gangue that present embodiment adopts
2Weight percent is 33%.
1, mills, add the Phenylsulfonic acid of coal gangue weight 0.3% in the coal gangue, increase runner milling calcining effect with the reunion that reduces material; Then delivering to wet-type ball mill mixes with the jet powder of coal gangue weight 6% and wears into 150 ~ 200 purpose slurries;
2, batching adds the clay of slurry weight 45%, the vegetable fibre of slurry weight 4%, the hydrogen peroxide of slurry weight 1%, the lignosulfite of slurry weight 4%, the bauxitic clay of slurry weight 3% in the slurry that step 1 is made;
3, base is rolled into the adobe of 600mm * 180mm * 12mm after the material that adopts hydrodynamic mo(u)lding press that step 2 is made pushes;
4, drying, the adobe that step 3 is made are carried out nature and are dried that weight in wet base per-cent is less than 8% to the adobe;
5, burn till, the adobe that step 4 drying is obtained drops in the tunnel furnace, burns till, and firing temperature is 1000 ~ 1400 ℃, and firing time is 10h;
6, cooling, the adobe that step 5 is burnt till is carried out gradual cooling down in the cooling zone of tunnel furnace, and the kiln discharge temperature is controlled at below 80 ℃.
The unit weight of the artificial volcanized rock building block that the method that adopts present embodiment to provide prepares is 430 ~ 870Kg/m
3, the about 3520Kg/m of loose volume weight
3, water-intake rate is 11.7% ~ 17.03%, cylindrical compress strength is about 1.218Mpa, water ratio is about 1%, physical strength is about 5.08Mpa, hollow rate is about 48%.
Embodiment 3:
Preparation process: SiO in the coal gangue that present embodiment adopts
2Weight percent is 39%.
1, mills, add the stearic acid of coal gangue weight 0.5% in the coal gangue, increase runner milling calcining effect with the reunion that reduces material; Then delivering to wet-type ball mill mixes with the jet powder of coal gangue weight 7% and wears into 150 ~ 200 purpose slurries;
2, batching adds the clay of slurry weight 40%, the wood shavings of slurry weight 4%, the hydrogen peroxide of slurry weight 2%, the water glass of slurry weight 5%, the aluminium ore slag of slurry weight 5% in the slurry that step 1 is made;
3, base is rolled into the adobe of 320mm * 240mm * 120mm after the material that adopts hydrodynamic mo(u)lding press that step 2 is made pushes;
4, drying, the adobe that step 3 is made are carried out nature and are dried that weight in wet base per-cent is less than 8% to the adobe;
5, burn till, the adobe that step 4 drying is obtained drops in the tunnel furnace, burns till, and firing temperature is 1000 ~ 1400 ℃, and firing time is 8h;
6, cooling, the adobe that step 5 is burnt till is carried out gradual cooling down in the cooling zone of tunnel furnace, and the kiln discharge temperature is controlled at below 80 ℃.
The unit weight of the artificial volcanized rock building block that the method that adopts present embodiment to provide prepares is 430 ~ 870Kg/m
3, the about 3520Kg/m of loose volume weight
3, water-intake rate is 11.7% ~ 17.03%, cylindrical compress strength is about 1.218Mpa, water ratio is about 1%, physical strength is about 5.08Mpa, hollow rate is about 48%.
Embodiment 4:
Preparation process: SiO in the coal gangue that present embodiment adopts
2Weight percent is 44%.
1, mills, add the Phenylsulfonic acid of coal gangue weight 0.4% in the coal gangue, increase runner milling calcining effect with the reunion that reduces material; Then delivering to wet-type ball mill mixes with the jet powder of coal gangue weight 7% and wears into 150 ~ 200 purpose slurries;
2, batching adds the clay of slurry weight 35%, the vegetable fibre of slurry weight 4%, the hydrogen peroxide of slurry weight 2%, the lignosulfite of slurry weight 5%, the aluminium ore slag of slurry weight 20% in the slurry that step 1 is made;
3, base is rolled into the adobe of 600mm * 240mm * 25mm after the material that adopts hydrodynamic mo(u)lding press that step 2 is made pushes;
4, drying, the adobe that step 3 is made are carried out nature and are dried that weight in wet base per-cent is less than 8% to the adobe;
5, burn till, the adobe that step 4 drying is obtained drops in the tunnel furnace, burns till, and firing temperature is 1000 ~ 1400 ℃, and firing time is 10h;
6, cooling, the adobe that step 5 is burnt till is carried out gradual cooling down in the cooling zone of tunnel furnace, and the kiln discharge temperature is controlled at below 80 ℃.
The unit weight of the artificial volcanized rock building block that the method that adopts present embodiment to provide prepares is 430 ~ 870Kg/m
3, the about 3520Kg/m of loose volume weight
3, water-intake rate is 11.7% ~ 17.03%, cylindrical compress strength is about 1.218Mpa, water ratio is about 1%, physical strength is about 5.08Mpa, hollow rate is about 48%.
Embodiment 5:
Preparation process: SiO in the coal gangue that present embodiment adopts
2Weight percent is 55%.
1, mills, add the Phenylsulfonic acid of coal gangue weight 0.5% in the coal gangue, increase runner milling calcining effect with the reunion that reduces material; Then delivering to wet-type ball mill mixes with the jet powder of coal gangue weight 7% and wears into 150 ~ 200 purpose slurries;
2, batching adds the clay of slurry weight 30%, the vegetable fibre of slurry weight 4%, the hydrogen peroxide of slurry weight 2%, the lignosulfite of slurry weight 5%, the aluminium ore slag of slurry weight 15% in the slurry that step 1 is made;
3, base is rolled into the adobe of 600mm * 240mm * 25mm after the material that adopts hydrodynamic mo(u)lding press that step 2 is made pushes;
4, drying, the adobe that step 3 is made are carried out nature and are dried that weight in wet base per-cent is less than 8% to the adobe;
5, burn till, the adobe that step 4 drying is obtained drops in the tunnel furnace, burns till, and firing temperature is 1000 ~ 1400 ℃, and firing time is 7h;
6, cooling, the adobe that step 5 is burnt till is carried out gradual cooling down in the cooling zone of tunnel furnace, and the kiln discharge temperature is controlled at below 80 ℃.
The unit weight of the artificial volcanized rock building block that the method that adopts present embodiment to provide prepares is 430 ~ 870Kg/m
3, the about 3520Kg/m of loose volume weight
3, water-intake rate is 11.7% ~ 17.03%, cylindrical compress strength is about 1.218Mpa, water ratio is about 1%, physical strength is about 5.08Mpa, hollow rate is about 48%.
The main component of the artificial volcanized rock that the method for employing embodiment 1 to embodiment 5 makes is: SiO
2: 51% ~ 55%; CaO:8.0% ~ 11%; MgO:2.0% ~ 3.0%; Fe
2O
3, FeO:10.0 % ~ 15%; Al
2O
3: 11 % ~ 17%; K
2O:2.0 % ~ 3.0%; Na
2O:2.0% ~ 3.0%; Approach with the main component of natural volcanized rock, and its physical properties and stable chemical nature reach the requirement of building material industry standard (JC/T 945-2005), can be widely used in constructing, building ground, wall decoration etc.
Claims (9)
1. the method for the artificial volcanized rock building block take coal gangue as raw material production is characterized in that: may further comprise the steps:
A, mill, with wet-type ball mill coal gangue is milled into slurry;
Described steps A may further comprise the steps:
A1 adds first the tensio-active agent of coal gangue weight 0.1% ~ 0.5% in the coal gangue, then delivers to wet-type ball mill;
A2 sends the jet powder of coal gangue weight 5%-10% into wet-type ball mill, and the mixing of materials that adds wet-type ball mill with steps A 1 is milled into 150 ~ 200 order slurries;
Add the clay of slurry weight 30% ~ 50%, the raising agent of slurry weight 1% ~ 5%, the whipping agent of slurry weight 1% ~ 2%, molding adhesive and the auxiliary material of slurry weight 4% ~ 6% in the slurry that B, batching, steps A obtain, enter step C after stirring;
C, base carry out base with shaping equipment to the material that step B stirs;
D, drying, the blank that step C is made dries for subsequent use in physical environment;
E, burn till, the dried blank of step D is delivered to stove burn till; Firing temperature is 1000 ~ 1400 ℃, and firing time is greater than 3h;
Get the artificial volcanized rock building block of finished product after the blank cooling that F, cooling, step e are fired into.
2. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1 is characterized in that: SiO in the described coal gangue
2Weight percent be 26% ~ 58%.
3. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1, it is characterized in that: described tensio-active agent is stearic acid or Phenylsulfonic acid.
4. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1, it is characterized in that: described auxiliary material is the bauxitic clay of slurry weight 2% ~ 5% or the aluminium ore slag of slurry weight 5% ~ 20%.
5. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1, it is characterized in that: described raising agent is wood shavings or vegetable fibre; Described whipping agent is hydrogen peroxide; Described molding adhesive is water glass or lignosulfite.
6. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1, it is characterized in that: described shaping equipment is hydrodynamic mo(u)lding press.
7. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1 is characterized in that: among the described step D, blank dried in physical environment weight in wet base per-cent is less than 8% to the blank.
8. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1, it is characterized in that: described stove is tunnel furnace.
9. the method for the artificial volcanized rock building block take coal gangue as raw material production according to claim 1, it is characterized in that: the blank that in the step F step e is fired into carries out gradual cooling down in the cooling zone of tunnel furnace, and the kiln discharge temperature is controlled at below 80 ℃.
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|---|---|---|---|
| CN2011104176574A CN102491732B (en) | 2011-12-14 | 2011-12-14 | Method for producing artificial vesuvianite block by using coal gangue as raw material |
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| CN2011104176574A CN102491732B (en) | 2011-12-14 | 2011-12-14 | Method for producing artificial vesuvianite block by using coal gangue as raw material |
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| CN102491732B true CN102491732B (en) | 2013-04-24 |
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| CN103265265B (en) * | 2013-04-25 | 2015-01-21 | 四川海吉尔环保科技开发有限公司 | Preparation methods of silicalite and industrial puffed silicalite |
| CN105669240A (en) * | 2016-03-01 | 2016-06-15 | 海南兆晟科技发展有限公司 | Volcanic rock structure composite material and preparation method thereof |
| CN107805062B (en) * | 2017-11-23 | 2020-09-29 | 高贵明 | Preparation method of artificial landscape stone regenerated from coal gangue |
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| CN1600729A (en) * | 2004-10-13 | 2005-03-30 | 威海华元节能建筑材料有限公司 | Clinker brick produced from basalt |
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| CN1450026A (en) * | 2003-03-06 | 2003-10-22 | 李肖平 | Building material with high blended coal gangue and making method thereof |
| CN1600729A (en) * | 2004-10-13 | 2005-03-30 | 威海华元节能建筑材料有限公司 | Clinker brick produced from basalt |
| CN101880153A (en) * | 2010-06-13 | 2010-11-10 | 云南民族大学 | Method for producing baked brick by using rare-earth metal modified coal gangue |
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