CN102863243B - Production method of high-alumina refractory attapulgite volcaniclastic-rock aggregate - Google Patents
Production method of high-alumina refractory attapulgite volcaniclastic-rock aggregate Download PDFInfo
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- CN102863243B CN102863243B CN201210373188.5A CN201210373188A CN102863243B CN 102863243 B CN102863243 B CN 102863243B CN 201210373188 A CN201210373188 A CN 201210373188A CN 102863243 B CN102863243 B CN 102863243B
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- volcanoclastic rock
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Abstract
The invention discloses a production method of high-alumina refractory attapulgite volcaniclastic-rock aggregate. The production method in the technical scheme is mainly characterized by including the steps of uniformly stirring the ingredients, crushing, soaking, extruding, roasting, crushing, screening and packaging so that a finished product of the high-alumina refractory attapulgite volcaniclastic-rock aggregate is obtained. The high-alumina refractory attapulgite volcaniclastic-rock aggregate comprises highly-viscous attapulgite clay powder, attapulgite clay tailings, volcaniclastic rock mixture, high-alumina bauxite, kaolin, coal gangue and bentonite tailings, and has the advantages of good particle strength, small high-temperature creep, high erosion resistance, good thermal shock resistance and the like. The high-alumina refractory attapulgite volcaniclastic-rock aggregate is made of a great quantity of various wastes, so that resource utilization rate is increased beneficially, the wastes turn into wealth, land occupation can be reduced, environmental protection and purification are achieved, energy is saved, production cost is lowered, and economic benefit is improved. The high-alumina refractory attapulgite volcaniclastic-rock aggregate is applicable to refractory concrete engineering.
Description
Technical field
The present invention relates to refractory materials, be specifically related to a kind of production method of Attapulgite volcanoclastic rock High-Alumina refractory aggregate.
Background technology
Refractory materials mainly be take the natural crystals such as bauxitic clay, silica, magnesite, rhombspar and after processing, is manufactured and form, aluminum oxide >=48% in High-Alumina refractory aggregate as raw material.
Mineral Resources in China 80% is intergrowth mineral, and a large amount of valuable resources retain among mine tailing, and tailings impoundment need to take a large amount of soils.A lot of Tailings Dams exceed the time limit or excess load is used, and even violation operation, makes Tailings Dam have great potential safety hazard, and people's property and the life security of surrounding area are caused to serious threat.
Attapulgite clay, except containing attapulgite, often contains the mineral such as wilkinite, kaolinite, hydromica, sepiolite, quartz, opal and carbonate.
With the volcanoclastic rock that also has of attapulgite clay ore deposit symbiosis, volcanoclastic rock is mostly on the upper strata in attapulgite clay ore deposit, the volcanoclastic rock ore bed on upper strata, some attapulgite clays mining area
'sthickness is up to tens of rice, at attapulgite clay in recovery process, the volcanoclastic rock on upper strata, attapulgite clay mining area is abandoned as waste, according to field trip, and 1 ton of attapulgite clay of every exploitation, the volcanoclastic rock producing has more than 30 tons, by the output of producing 150000 tons per year, calculate, the volcanoclastic rock of generation, up to 4,500,000 tons, all can be utilized for many years, whole mining area is the volcanoclastic rock mixture of again piling up everywhere, causes the serious wasting of resources and financial loss.
Coal gangue is thrown aside, takies tract, and sulfide in coal gangue is overflowed or leached can atmosphere pollution, farmland and water body, and waste dump also can spontaneous combustion presence of fire, or in avalanche in rainy season, silts river up and cause disaster.
Summary of the invention
The object of the invention is to overcome weak point in prior art, a kind of production method of Attapulgite volcanoclastic rock High-Alumina refractory aggregate is provided.
The production method of Attapulgite volcanoclastic rock High-Alumina refractory aggregate: the finished product that the batching of Attapulgite volcanoclastic rock High-Alumina refractory aggregate is stirred and pulverize, soak, be packaged as Attapulgite volcanoclastic rock High-Alumina refractory aggregate after extruding, roasting, pulverizing and screening.
Attapulgite volcanoclastic rock High-Alumina refractory aggregate is comprised of the sticky attapulgite clay powder of height, attapulgite clay mine tailing, volcanoclastic rock mixture, alumine, kaolin, coal gangue and wilkinite mine tailing.
Attapulgite clay be a kind of layer of chain-like structure containing Shuifu County's zeopan clay mineral, attapulgite clay soil property is fine and smooth, water-absorbent is strong, tool viscosity and plasticity-when wet, be conducive to the bonding between raw material, can improve granule strength, sticking power and the porosity of Attapulgite volcanoclastic rock High-Alumina refractory aggregate.
High sticky attapulgite clay powder refers to gets 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250ml through high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value>=2200 into
mPasattapulgite clay powder be high sticky attapulgite clay powder, the sticky attapulgite clay powder particles of high fineness≤0.074 millimeter that the present invention selects.
Attapulgite clay can mix in recovery process a certain amount of rubble and earth, as a kind of attapulgite clay mine tailing, abandons, and causes a large amount of wastings of resources.
Volcanoclastic rock is the rock of the transitional type between magma lava and sedimentogeneous rock, the material that wherein more than 50% composition is sprayed by pyroclastic flow forms, and these tephras are mainly the lava of premature coagulation on volcano, the rock formation that passage is around burst when volcanic eruption.Volcanoclastic rock mixture comprises landwaste, brilliant bits, glassiness bits, slurry bits, volcanic block (diameter is greater than 100 millimeters), volcanic gravel (diameter is greater than 2 millimeters) and volcanic ash (diameter is less than 2 millimeters), volcanoclastic rock main chemical compositions is silicon-dioxide and aluminum oxide, has the intensity of good fire performance and increase Attapulgite volcanoclastic rock High-Alumina refractory aggregate.
Alumine essential mineral is comprised of diaspore and high alumina silica, content >=50% of aluminum oxide.
Content >=45% of Alumina from Kaolin, has good plasticity-, high cohesiveness, good electrical insulation capability, has good antiacid dissolubility, very low cation exchange capacity and the physico-chemical property such as resistivity against fire preferably.
Coal gangue is the solid waste discharging in coal mining process and coal washing process, there is lower heating value, carbon containing 20～30%, the present invention uses coal gangue can save part coal, increase the content of aluminum oxide, improve the intensity of Attapulgite volcanoclastic rock High-Alumina refractory aggregate.
The rock that wilkinite is mainly comprised of wilkinite, it is the important raw mineral materials of field of metallurgy, the wilkinite mine tailing that the present invention selects is distributed in the lower floor in attapulgite clay ore deposit mostly, be difficult to carry out independent exploitation, but content >=16% of aluminum oxide in wilkinite mine tailing, and there is plasticity-and agglutinating value(of coal).
The present invention is achieved by following technical proposals:
1, the production method of Attapulgite volcanoclastic rock High-Alumina refractory aggregate: (1) the batching of Attapulgite volcanoclastic rock High-Alumina refractory aggregate is added in the two shaft pugmill mixer having moved and stirred, after stirring, inputting pulverizing in pulverizer is the mixture of Attapulgite volcanoclastic rock High-Alumina refractory aggregate, particle fineness≤1.05 millimeter of Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture; (2) will in Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input fermentation vat, soak, soak time is controlled at 24～72 hours; (3) by extruding in the Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input pair roller extrusion machine after soaking, be flap, thickness≤6.0 millimeter of flap; (4) by Attapulgite volcanoclastic rock High-Alumina refractory aggregate flap input rotary type roasting roasting in kilns, maturing temperature is controlled at 650～950 ℃; (5) cooled Attapulgite volcanoclastic rock High-Alumina refractory aggregate flap is pulverized and screening, it is 3.1～3.7 millimeters that the particle fineness of coarse aggregate is controlled, it is 2.3～3.0 millimeters that the particle fineness of middle aggregate is controlled, it is 1.6～2.2 millimeters that the particle fineness of fine aggregate is controlled, and is packaged as respectively the finished product of Attapulgite volcanoclastic rock High-Alumina refractory aggregate;
The batching of described Attapulgite volcanoclastic rock High-Alumina refractory aggregate is comprised of following component by weight percentage: high sticky attapulgite clay powder 2～15%, attapulgite clay mine tailing 5～25%, volcanoclastic rock mixture 15～35%, alumine 5～25%, kaolin 5～20%, coal gangue 5～15% and wilkinite mine tailing 2～15%;
Described batching when soaking in Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input fermentation vat, is comprised of following component: Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture 55～80% and water 20～45% by weight percentage.
In Attapulgite volcanoclastic rock High-Alumina refractory aggregate, the content of aluminum oxide is high, has that granule strength is high, high temperature creep is little, resistance to fouling is strong and the advantage such as good thermal shock stability.
In the batching of Attapulgite volcanoclastic rock High-Alumina refractory aggregate, the various wastes of a large amount of employing, are not only conducive to improve resource utilization, turn waste into wealth, and can also reduce land occupation, and protection and environment purification are saved the energy, reduce production costs, and increase economic efficiency.
Attapulgite volcanoclastic rock High-Alumina refractory aggregate is applicable to refractory concrete engineering.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
1, the production method of described Attapulgite volcanoclastic rock High-Alumina refractory aggregate: (1) the batching of Attapulgite volcanoclastic rock High-Alumina refractory aggregate is added in the two shaft pugmill mixer having moved and stirred, after stirring, inputting pulverizing in pulverizer is the mixture of Attapulgite volcanoclastic rock High-Alumina refractory aggregate, particle fineness≤0.5 millimeter of Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture; (2) will in Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input fermentation vat, soak, soak time is controlled at 48 hours; (3) by extruding in the Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input pair roller extrusion machine after soaking, be flap, thickness≤6.0 millimeter of flap; (4) Attapulgite volcanoclastic rock High-Alumina refractory aggregate flap is inputted rotary type roasting roasting in kilns, and maturing temperature is controlled at 750～850 ℃; (5) cooled Attapulgite volcanoclastic rock High-Alumina refractory aggregate flap is pulverized and screening, it is 3.4 millimeters that the particle fineness of coarse aggregate is controlled, it is 2.6 millimeters that the particle fineness of middle aggregate is controlled, it is 2.0 millimeters that the particle fineness of fine aggregate is controlled, and is packaged as respectively the finished product of Attapulgite volcanoclastic rock High-Alumina refractory aggregate;
The batching of described Attapulgite volcanoclastic rock High-Alumina refractory aggregate is comprised of following component by weight percentage: high sticky attapulgite clay powder 5%, attapulgite clay mine tailing 10%, volcanoclastic rock mixture 30%, alumine 24%, kaolin 17%, coal gangue 8% and wilkinite mine tailing 6%;
Described batching when soaking in Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input fermentation vat, is comprised of following component: Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture 72% and water 28% by weight percentage.
Claims (1)
1. the production method of an Attapulgite volcanoclastic rock High-Alumina refractory aggregate, it is characterized in that, (1) the batching of Attapulgite volcanoclastic rock High-Alumina refractory aggregate is added in the two shaft pugmill mixer having moved and stirred, after stirring, inputting pulverizing in pulverizer is the mixture of Attapulgite volcanoclastic rock High-Alumina refractory aggregate, particle fineness≤1.05 millimeter of Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture; (2) will in Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input fermentation vat, soak, soak time is controlled at 24～72 hours; (3) by extruding in the Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input pair roller extrusion machine after soaking, be flap, thickness≤6.0 millimeter of flap; (4) by Attapulgite volcanoclastic rock High-Alumina refractory aggregate flap input rotary type roasting roasting in kilns, maturing temperature is controlled at 650～950 ℃; (5) cooled Attapulgite volcanoclastic rock High-Alumina refractory aggregate flap is pulverized and screening, it is 3.1～3.7 millimeters that the particle fineness of coarse aggregate is controlled, it is 2.3～3.0 millimeters that the particle fineness of middle aggregate is controlled, it is 1.6～2.2 millimeters that the particle fineness of fine aggregate is controlled, and is packaged as respectively the finished product of Attapulgite volcanoclastic rock High-Alumina refractory aggregate;
The batching of described Attapulgite volcanoclastic rock High-Alumina refractory aggregate is comprised of following component by weight percentage: high sticky attapulgite clay powder 2～15%, attapulgite clay mine tailing 5～25%, volcanoclastic rock mixture 15～35%, alumine 5～25%, kaolin 5～20%, coal gangue 5～15% and wilkinite mine tailing 2～15%;
Described batching when soaking in Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture input fermentation vat, is comprised of following component: Attapulgite volcanoclastic rock High-Alumina refractory aggregate mixture 55～80% and water 20～45% by weight percentage;
The sticky attapulgite clay powder of described height refers to gets 28.0g attapulgite clay powder sample, add in the suspension cup of homogenizer, add again 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250mL through high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to test its suspension, tested viscosity value>=2200 into
mPasattapulgite clay powder be high sticky attapulgite clay powder, the sticky attapulgite clay powder particles of the height of selecting fineness≤0.074 millimeter.
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| CN201210373188.5A CN102863243B (en) | 2012-09-30 | 2012-09-30 | Production method of high-alumina refractory attapulgite volcaniclastic-rock aggregate |
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| CN201210373188.5A CN102863243B (en) | 2012-09-30 | 2012-09-30 | Production method of high-alumina refractory attapulgite volcaniclastic-rock aggregate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607828A (en) * | 2009-07-10 | 2009-12-23 | 汤阴县超贝工程设备有限公司 | Environment friendly light sound-proof refractory casting material |
| CN102515786A (en) * | 2011-11-10 | 2012-06-27 | 许庆华 | Gravel-shaped attapulgite fireproof ceramsite |
| CN102515787A (en) * | 2011-11-10 | 2012-06-27 | 许庆华 | Cylindrical attapulgite construction waste ceramsite |
| CN102515631A (en) * | 2011-11-09 | 2012-06-27 | 许庆华 | Baking-free gravel-shaped attapulgite fly ash ceramisites |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607828A (en) * | 2009-07-10 | 2009-12-23 | 汤阴县超贝工程设备有限公司 | Environment friendly light sound-proof refractory casting material |
| CN102515631A (en) * | 2011-11-09 | 2012-06-27 | 许庆华 | Baking-free gravel-shaped attapulgite fly ash ceramisites |
| CN102515786A (en) * | 2011-11-10 | 2012-06-27 | 许庆华 | Gravel-shaped attapulgite fireproof ceramsite |
| CN102515787A (en) * | 2011-11-10 | 2012-06-27 | 许庆华 | Cylindrical attapulgite construction waste ceramsite |
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