CN102863240A - Light refractory attapulgite volcaniclastic-rock brick - Google Patents
Light refractory attapulgite volcaniclastic-rock brick Download PDFInfo
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- CN102863240A CN102863240A CN2012103731669A CN201210373166A CN102863240A CN 102863240 A CN102863240 A CN 102863240A CN 2012103731669 A CN2012103731669 A CN 2012103731669A CN 201210373166 A CN201210373166 A CN 201210373166A CN 102863240 A CN102863240 A CN 102863240A
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- attapulgite
- volcanoclastic rock
- fire brick
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- attapulgite clay
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Abstract
The invention discloses a light refractory attapulgite volcaniclastic-rock brick. The light refractory attapulgite volcaniclastic-rock brick in the technical scheme is mainly characterized by comprising highly-viscous attapulgite clay powder, attapulgite clay tailings, volcaniclastic rock mixture, diatomite tailings, expanded vermiculite, coal gangue, bentonite tailings and plant straw powder. A finished product of the light refractory attapulgite volcaniclastic-rock brick is obtained by stirring, pressing, airing, roasting and cooling the ingredients and packaging. The light refractory attapulgite volcaniclastic-rock brick has the advantages of high wear resistance, high porosity, low volume density, small volume shrinkage at the high temperature and low thermal conductivity. The light refractory attapulgite volcaniclastic-rock brick 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 light refractory attapulgite volcaniclastic-rock brick is applicable to refractory insulation engineering.
Description
Technical field
The present invention relates to refractory materials, be specifically related to a kind of Attapulgite volcanoclastic rock light fire brick.
Background technology
Lightweight refractory is the refractory materials that a kind of void content is high, volume density is little, thermal conductivity is low, is used as lagging material on Industrial Stoves and other Thermal Equipments; With general refractory brick relatively, lightweight refractory resistance performance of slag corrosion, mechanical strength, wearability are poor, the high temperature lower volume is shunk larger.
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, make Tailings Dam have great potential safety hazard, and people's property and the life security of surrounding area 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, investigates factually, 1 ton of attapulgite clay of every exploitation, the volcanoclastic rock produced 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 the spontaneous combustion presence of fire, or, in the avalanche in rainy season, silts river up and cause disaster.
Summary of the invention
The objective of the invention is to overcome weak point in prior art, a kind of Attapulgite volcanoclastic rock light fire brick is provided.
Attapulgite volcanoclastic rock light fire brick is comprised of the sticky attapulgite clay powder of height, attapulgite clay mine tailing, volcanoclastic rock mixture, diatomite mine tailing, expanded vermiculite, coal gangue, wilkinite mine tailing and plant stalk powder.
The production method of Attapulgite volcanoclastic rock light fire brick: by the batching of Attapulgite volcanoclastic rock light fire brick through stirring, suppress, dry, roasting and cooling after, be packaged as the finished product of Attapulgite volcanoclastic rock light fire brick.
Attapulgite clay be a kind of layer of chain-like structure containing Shuifu County's zeopan clay mineral, attapulgite clay soil property exquisiteness, water-absorbent is strong, tool viscosity and plasticity-when wet, be conducive to the bonding between raw material, can improve intensity and the porosity of Attapulgite volcanoclastic rock light fire brick.
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, the suspension cup is placed on homogenizer, under the rotating speed of 11000 rev/mins, stir 20 minutes, to pour in the beaker of 250ml through the high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to be tested its suspension, tested viscosity value>=2200 into
mPasthe attapulgite clay powder be high sticky attapulgite clay powder, the present invention selects the particle fineness of high sticky attapulgite clay powder≤0.074 millimeter.
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, and the present invention selects the particle fineness of attapulgite clay mine tailing≤2.0 millimeters.
Volcanoclastic rock is the rock of the transitional type between magma lava and sedimentogeneous rock, wherein the composition more than 50% is comprised of the material of pyroclastic flow ejection, and these tephras are mainly the lava of premature coagulation on volcano, the rock formation that passage is burst on every side when volcanic eruption.The 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), the volcanoclastic rock main chemical compositions is silicon-dioxide and aluminum oxide, have fire performance preferably and increase the intensity of Attapulgite volcanoclastic rock light fire brick, the present invention selects the particle fineness of volcanoclastic rock mixture≤5.0 millimeters.
Diatomite is fine and smooth, loose, light weight, porous, specific surface area is large, space is regular distribution, and stable chemical nature is a kind of natural nano aperture amorphous silicon material, but diatomite is made a low multiple use, the product of most enterprises comes from one-level soil, and two, three grades of soil are discarded in a large number, have caused serious waste of resources, also polluted environment, the present invention selects the particle fineness of diatomite mine tailing≤2.0 millimeters.
The fabric and raw-vermiculite sheet is after high-temperature roasting, and its volume energy expands rapidly several times to tens times, and the vermiculite after volumetric expansion just is expanded vermiculite, has very strong thermal and insulating performance, and the present invention selects the particle fineness of expanded vermiculite≤2.0 millimeters.
Coal gangue is the solid waste discharged 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 light fire brick, the present invention selects the particle fineness of coal gangue≤2.0 millimeters.
The rock that wilkinite mainly is 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 the content of aluminum oxide >=16% in the wilkinite mine tailing, and thering is plasticity-and agglutinating value(of coal), the present invention selects the particle fineness of wilkinite mine tailing≤2.0 millimeters.
Plant stalk powder refers to the meal after the straw crushings such as straw, wheat straw, corn, after the plant straw pruinescence burnouts, can make Attapulgite volcanoclastic rock light fire brick have higher void content, the present invention selects the particle fineness of plant stalk powder≤1.5 millimeters.
The present invention is achieved by following technical proposals:
1, the batching of Attapulgite volcanoclastic rock light fire brick is comprised of following component by weight percentage: high sticky attapulgite clay powder 2～10%, attapulgite clay mine tailing 5～20%, volcanoclastic rock mixture 15～30%, diatomite mine tailing 5～20%, expanded vermiculite 2～15%, coal gangue 2～10%, wilkinite mine tailing 2～10%, plant stalk powder 1～10% and water 5～35%;
The production method of described Attapulgite volcanoclastic rock light fire brick: (1) the batching of Attapulgite volcanoclastic rock light fire brick is added in the two shaft pugmill mixer moved and stirs, be transported to after stirring in pressing machine, be pressed into difform Attapulgite volcanoclastic rock light fire brick work in-process; (2) work in-process are sent into to dry in room and carried out nature and dry, be transported to the tunnel furnace roasting after half-finished water ratio≤15%; (3) be divided into three phases in roasting process: the first stage maturing temperature is controlled at 80～350 ℃, and roasting time is controlled at 2～5 hours; The subordinate phase maturing temperature is controlled at 350～750 ℃, and roasting time is controlled at 2～6 hours; The phase III maturing temperature is controlled at 750～950 ℃, and roasting time is controlled at 2～5 hours; (4) naturally cooling after roasting, be packaged as the finished product of Attapulgite volcanoclastic rock light fire brick;
Describedly be pressed into difform Attapulgite volcanoclastic rock light fire brick work in-process, refer to the Attapulgite volcanoclastic rock light fire brick work in-process that need to be pressed into canonical form, general abnormity, abnormity, special shape according to design.
Described half-finished water ratio per-cent is weight ratio.
Be divided into three phases in Attapulgite volcanoclastic rock light fire brick roasting process, be conducive to slowly improve maturing temperature, guarantee the quality of product.
Attapulgite volcanoclastic rock light fire brick have advantages of wearability than strong, void content is high, volume density is little, the high temperature lower volume is shunk less and thermal conductivity is low.
In the batching of Attapulgite volcanoclastic rock light fire brick, the various wastes of a large amount of employing, not only be conducive to improve resource utilization, turns 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 light fire brick is applicable to the fire resistant heat preserving engineering.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
1, the batching of Attapulgite volcanoclastic rock light fire brick is comprised of following component by weight percentage: high sticky attapulgite clay powder 5%, attapulgite clay mine tailing 10%, volcanoclastic rock mixture 22%, diatomite mine tailing 18%, expanded vermiculite 8%, coal gangue 6%, wilkinite mine tailing 4%, plant stalk powder 2% and water 25%;
The production method of described Attapulgite volcanoclastic rock light fire brick: (1) the batching of Attapulgite volcanoclastic rock light fire brick is added in the two shaft pugmill mixer moved and stirs, be transported to after stirring in pressing machine, be pressed into difform Attapulgite volcanoclastic rock light fire brick work in-process; (2) work in-process are sent into to dry in room and carried out nature and dry, be transported to the tunnel furnace roasting after half-finished water ratio≤15%; (3) be divided into three phases in roasting process: the first stage maturing temperature is controlled at 80～350 ℃, and roasting time is controlled at 3 hours; The subordinate phase maturing temperature is controlled at 350～750 ℃, and roasting time is controlled at 4 hours; The phase III maturing temperature is controlled at 750～900 ℃, and roasting time is controlled at 3 hours; (4) naturally cooling after roasting, be packaged as the finished product of Attapulgite volcanoclastic rock light fire brick;
Describedly be pressed into difform Attapulgite volcanoclastic rock light fire brick work in-process, refer to the Attapulgite volcanoclastic rock light fire brick work in-process that need to be pressed into canonical form according to design.
Claims (1)
1. an Attapulgite volcanoclastic rock light fire brick, it is characterized in that, the batching of Attapulgite volcanoclastic rock light fire brick is comprised of following component by weight percentage: high sticky attapulgite clay powder 2～10%, attapulgite clay mine tailing 5～20%, volcanoclastic rock mixture 15～30%, diatomite mine tailing 5～20%, expanded vermiculite 2～15%, coal gangue 2～10%, wilkinite mine tailing 2～10%, plant stalk powder 1～10% and water 5～35%;
The production method of described Attapulgite volcanoclastic rock light fire brick: (1) the batching of Attapulgite volcanoclastic rock light fire brick is added in the two shaft pugmill mixer moved and stirs, be transported to after stirring in pressing machine, be pressed into difform Attapulgite volcanoclastic rock light fire brick work in-process; (2) work in-process are sent into to dry in room and carried out nature and dry, be transported to the tunnel furnace roasting after half-finished water ratio≤15%; (3) be divided into three phases in roasting process: the first stage maturing temperature is controlled at 80～350 ℃, and roasting time is controlled at 2～5 hours; The subordinate phase maturing temperature is controlled at 350～750 ℃, and roasting time is controlled at 2～6 hours; The phase III maturing temperature is controlled at 750～950 ℃, and roasting time is controlled at 2～5 hours; (4) naturally cooling after roasting, be packaged as the finished product of Attapulgite volcanoclastic rock light fire brick;
Describedly be pressed into difform Attapulgite volcanoclastic rock light fire brick work in-process, refer to the Attapulgite volcanoclastic rock light fire brick work in-process that need to be pressed into canonical form, general abnormity, abnormity, special shape according to design;
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, the suspension cup is placed on homogenizer, under the rotating speed of 11000 rev/mins, stir 20 minutes, to pour in the beaker of 250ml through the high-speed stirring sample suspension again the viscosity of using NDJ-1 type rotational viscosimeter to be tested its suspension, tested viscosity value>=2200 into
mPasthe attapulgite clay powder be high sticky attapulgite clay powder, the present invention selects the particle fineness of high sticky attapulgite clay powder≤0.074 millimeter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210373166.9A CN102863240B (en) | 2012-09-30 | 2012-09-30 | Light refractory attapulgite volcaniclastic-rock brick |
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| CN201210373166.9A CN102863240B (en) | 2012-09-30 | 2012-09-30 | Light refractory attapulgite volcaniclastic-rock brick |
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| CN102863240A true CN102863240A (en) | 2013-01-09 |
| CN102863240B CN102863240B (en) | 2014-03-26 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007718A (en) * | 2007-01-29 | 2007-08-01 | 袁长兵 | Attapulgite insulated brick for sun-light green-house |
| CN102515786A (en) * | 2011-11-10 | 2012-06-27 | 许庆华 | Gravel-shaped attapulgite fireproof ceramsite |
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2012
- 2012-09-30 CN CN201210373166.9A patent/CN102863240B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007718A (en) * | 2007-01-29 | 2007-08-01 | 袁长兵 | Attapulgite insulated brick for sun-light green-house |
| CN102515786A (en) * | 2011-11-10 | 2012-06-27 | 许庆华 | Gravel-shaped attapulgite fireproof ceramsite |
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| CN102863240B (en) | 2014-03-26 |
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Owner name: NANTONG ZIXIN INDUSTRY CO., LTD. Free format text: FORMER OWNER: XU QINGHUA Effective date: 20141022 |
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Effective date of registration: 20141022 Address after: 226100 Huaian city goussen Mo Jian village in Jiangsu province Xuyi County Township Patentee after: Nantong Zixin Industrial Co.,Ltd. Address before: 211700 Huaian City, Jiangsu province Xuyi County Xu town of Stonebridge Road No. 40 Patentee before: Xu Qinghua |
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Address after: Tongzhou District Shi Gang Zhen Mi Shi Qiao Road 226100 Jiangsu city of Nantong province No. 2 Patentee after: Nantong Zixin Industrial Co.,Ltd. Address before: 226100 Huaian city goussen Mo Jian village in Jiangsu province Xuyi County Township Patentee before: Nantong Zixin Industrial Co.,Ltd. |