CN102863232B - Silicious refractory attapulgite volcaniclastic-rock aggregate sand - Google Patents
Silicious refractory attapulgite volcaniclastic-rock aggregate sand Download PDFInfo
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- CN102863232B CN102863232B CN201210373156.5A CN201210373156A CN102863232B CN 102863232 B CN102863232 B CN 102863232B CN 201210373156 A CN201210373156 A CN 201210373156A CN 102863232 B CN102863232 B CN 102863232B
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Abstract
The invention discloses silicious refractory attapulgite volcaniclastic-rock aggregate sand. The silicious refractory attapulgite volcaniclastic-rock aggregate sand in the technical scheme is mainly characterized by comprising highly-viscous attapulgite clay powder, attapulgite clay tailings, volcaniclastic rock mixture, quartzite, waste silica bricks, opal and bentonite tailings. A finished product of the silicious refractory attapulgite volcaniclastic-rock aggregate sand is obtained by uniformly stirring the ingredients, crushing, soaking, extruding, roasting, crushing, screening and packaging. The silicious refractory attapulgite volcaniclastic-rock aggregate sand has the advantages of high particle strength, high resistance to acid slag, good thermal shock resistance and high refractoriness. The silicious refractory attapulgite volcaniclastic-rock aggregate sand 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 silicious refractory attapulgite volcaniclastic-rock aggregate sand is applicable to acid refractory concrete engineering.
Description
Technical field
The present invention relates to refractory material, be specifically related to a kind of concave convex rod pyroclastic rock silica fire resistant aggregate sand.
Background technology
Refractory material mainly be take the natural crystals such as bauxite, silica, magnesite, dolomite and after processing, is manufactured and form 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.
Concave-convex clay rod, except containing attapulgite, often contains the mineral such as bentonite, kaolinite, hydromica, sepiolite, quartz, opal and carbonate.
With the pyroclastic rock that also has of Concave-convex clay rod ore deposit symbiosis, pyroclastic rock is mostly on the upper strata in Concave-convex clay rod ore deposit, the pyroclastic rock ore bed on upper strata, some Concave-convex clay rods mining area
'sthickness is up to tens of rice, at Concave-convex clay rod in recovery process, the pyroclastic rock on upper strata, Concave-convex clay rod mining area is abandoned as discarded object, according to on-the-spot investigation, and 1 ton of Concave-convex clay rod of every exploitation, the pyroclastic rock producing has more than 50 tons, by the output of producing 150000 tons per year, calculate, the pyroclastic rock of generation, up to 7,500,000 tons, all can be utilized for many years, whole mining area is the pyroclastic rock mixture of again piling up everywhere, causes the serious wasting of resources and economic loss.
Summary of the invention
The object of the invention is to overcome weak point in prior art, a kind of concave convex rod pyroclastic rock silica fire resistant aggregate sand is provided.
Concave convex rod pyroclastic rock silica fire resistant aggregate sand is comprised of the sticky Concave-convex clay rod powder of height, Concave-convex clay rod mine tailing, pyroclastic rock mixture, quartzite, useless silica brick, opal and bentonite mine tailing.
The production method of concave convex rod pyroclastic rock silica fire resistant aggregate sand: the finished product that the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand is stirred and pulverize, soak, be packaged as concave convex rod pyroclastic rock silica fire resistant aggregate sand after extruding, roasting, pulverizing and screening.
Concave-convex clay rod be a kind of layer of chain structure containing Shuifu County's zeopan clay mineral, Concave-convex clay rod soil property is fine and smooth, and water imbibition is strong, tool viscosity and plasticity when wet, be conducive to the bonding between raw material, can improve the granule strength of concave convex rod pyroclastic rock silica fire resistant aggregate sand.
High sticky Concave-convex clay rod powder refers to gets 28.0g Concave-convex clay rod 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 stirred sample suspension again the viscosity of using NDJ-1 type rotation viscometer to test its suspension, tested viscosity value>=2200 into
mPasconcave-convex clay rod powder be high sticky Concave-convex clay rod powder, the sticky Concave-convex clay rod powder particles of high fineness≤0.074 millimeter that the present invention selects.
Concave-convex clay rod can mix in recovery process a certain amount of rubble and earth, as a kind of Concave-convex clay rod mine tailing, abandons, and causes a large amount of wastings of resources, and the present invention selects grain fineness≤2.0 millimeter of Concave-convex clay rod mine tailing.
Pyroclastic rock is the rock of the transitional type between magma lava and sedimentary rock, the material that wherein more than 50% composition is sprayed by pyroclastic flow forms, and these tephres are mainly the lava of premature coagulation on volcano, the rock formation that passage is around burst when volcanic eruption.Pyroclastic rock mixture comprises landwaste, brilliant bits, nature of glass bits, slurry bits, volcanic block (diameter is greater than 100 millimeters), volcanic pisolite (diameter is greater than 2 millimeters) and volcanic ash (diameter is less than 2 millimeters), pyroclastic rock main chemical compositions is silica and aluminium oxide, the intensity with good fire resistance and increase concave convex rod pyroclastic rock silica fire resistant aggregate sand, the present invention selects grain fineness≤5.0 millimeter of pyroclastic rock mixture.
The rock that quartzite is mainly comprised of quartzy (more than 85%), can be divided into silicilyte and metaquartzite by the origin cause of formation, and formation hardness is large, intensity is high, and the very high refractoriness of tool, and the present invention selects quartzitic grain fineness≤5.0 millimeter.
Useless silica brick is the waste refractory materials after coke oven, iron-making heat wind furnace and glass melter overhaul or dismounting, silica brick is that SiO2 content is at more than 93% acid refractory product, main mine is tridymite and cristobalite and a small amount of residual quartz and glassy phase mutually, and the present invention selects grain fineness≤2.0 millimeter of useless silica brick.
Opal and Concave-convex clay rod symbiosis, that Concave-convex clay rod is difficult to a kind of hard rock of rejecting in recovery process, opal Main Ingredients and Appearance is SiO2, and as a kind of discarded object bulk deposition, in Concave-convex clay rod mining area, the present invention selects opaline grain fineness≤2.0 millimeter.
The rock that bentonite is mainly comprised of bentonite, it is the important raw mineral materials of field of metallurgy, the bentonite mine tailing that the present invention selects is distributed in the lower floor in Concave-convex clay rod ore deposit mostly, be difficult to carry out independent exploitation, but content >=16% of aluminium oxide in bentonite mine tailing, and thering is plasticity and cohesiveness, the present invention selects grain fineness≤2.0 millimeter of bentonite mine tailing.
The present invention is achieved by following technical proposals:
1, the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand is comprised of following component by weight percentage: high sticky Concave-convex clay rod powder 2～15%, Concave-convex clay rod mine tailing 5～20%, pyroclastic rock mixture 15～35%, quartzite 5～25%, useless silica brick 5～20%, opal 2～10% and bentonite mine tailing 2～10%;
The production method of described concave convex rod pyroclastic rock silica fire resistant aggregate sand: (1) the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand is added in the two shaft pugmill mixer having moved and stirred, after stirring, inputting pulverizing in pulverizer is the mixture of concave convex rod pyroclastic rock silica fire resistant aggregate sand, grain fineness≤0.5 millimeter of concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture; (2) will in concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input fermentation vat, soak, soak time is controlled at 24～72 hours; (3) by extruding in the concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input pair roller extruder after soaking, be tablet, thickness≤3.0 millimeter of tablet; (4) by concave convex rod pyroclastic rock silica fire resistant aggregate sand tablet input swinging roasting roasting in kilns, sintering temperature is controlled at 650～900 ℃; (5) cooled concave convex rod pyroclastic rock silica fire resistant aggregate sand tablet is pulverized and screening, concave convex rod pyroclastic rock silica fire resistant aggregate sand grain fineness≤1.0 millimeter after screening, are packaged as the finished product of concave convex rod pyroclastic rock silica fire resistant aggregate sand;
Described batching when soaking in concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input fermentation vat, is comprised of following component: concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture 55～80% and water 20～45% by weight percentage.
Pyroclastic rock in concave convex rod pyroclastic rock silica fire resistant aggregate sand batching is comprised of the material of volcano stream ejection, through 1200 ℃ of above high melts, sintering temperature of the present invention is controlled at 650～900 ℃, just can guarantee that concave convex rod pyroclastic rock silica fire resistant aggregate sand has that granule strength is high, strong to acid slag resistance, good thermal shock stability and the high feature of refractoriness.
In the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand, the various discarded objects 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.
Concave convex rod pyroclastic rock silica fire resistant aggregate sand is applicable to acid refractory concrete engineering.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described:
1, the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand is comprised of following component by weight percentage: high sticky Concave-convex clay rod powder 8%, Concave-convex clay rod mine tailing 16%, pyroclastic rock mixture 28%, quartzite 20%, useless silica brick 14%, opal 8% and bentonite mine tailing 6%;
The production method of described concave convex rod pyroclastic rock silica fire resistant aggregate sand: (1) the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand is added in the two shaft pugmill mixer having moved and stirred, after stirring, inputting pulverizing in pulverizer is the mixture of concave convex rod pyroclastic rock silica fire resistant aggregate sand, grain fineness≤0.5 millimeter of concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture; (2) will in concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input fermentation vat, soak, soak time is controlled at 48 hours; (3) by extruding in the concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input pair roller extruder after soaking, be tablet, thickness≤3.0 millimeter of tablet; (4) by concave convex rod pyroclastic rock silica fire resistant aggregate sand tablet input swinging roasting roasting in kilns, sintering temperature is controlled at 750～850 ℃; (5) cooled concave convex rod pyroclastic rock silica fire resistant aggregate sand tablet is pulverized and screening, concave convex rod pyroclastic rock silica fire resistant aggregate sand grain fineness≤1.0 millimeter after screening, are packaged as the finished product of concave convex rod pyroclastic rock silica fire resistant aggregate sand;
Described batching when soaking in concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input fermentation vat, is comprised of following component: concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture 72% and water 28% by weight percentage.
Claims (1)
1. a concave convex rod pyroclastic rock silica fire resistant aggregate sand, it is characterized in that, the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand is comprised of following component by weight percentage: high sticky Concave-convex clay rod powder 2～15%, Concave-convex clay rod mine tailing 5～20%, pyroclastic rock mixture 15～35%, quartzite 5～25%, useless silica brick 5～20%, opal 2～10% and bentonite mine tailing 2～10%;
The production method of described concave convex rod pyroclastic rock silica fire resistant aggregate sand: (1) the batching of concave convex rod pyroclastic rock silica fire resistant aggregate sand is added in the two shaft pugmill mixer having moved and stirred, after stirring, inputting pulverizing in pulverizer is the mixture of concave convex rod pyroclastic rock silica fire resistant aggregate sand, grain fineness≤0.5 millimeter of concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture; (2) will in concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input fermentation vat, soak, soak time is controlled at 24～72 hours; (3) by extruding in the concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input pair roller extruder after soaking, be tablet, thickness≤3.0 millimeter of tablet; (4) by concave convex rod pyroclastic rock silica fire resistant aggregate sand tablet input swinging roasting roasting in kilns, sintering temperature is controlled at 650～900 ℃; (5) cooled concave convex rod pyroclastic rock silica fire resistant aggregate sand tablet is pulverized and screening, concave convex rod pyroclastic rock silica fire resistant aggregate sand grain fineness≤1.0 millimeter after screening, are packaged as the finished product of concave convex rod pyroclastic rock silica fire resistant aggregate sand;
Described batching when soaking in concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture input fermentation vat, is comprised of following component: concave convex rod pyroclastic rock silica fire resistant aggregate sand mixture 55～80% and water 20～45% by weight percentage;
The sticky Concave-convex clay rod powder of described height refers to gets 28.0g Concave-convex clay rod 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 stirred sample suspension again the viscosity of using NDJ-1 type rotation viscometer to test its suspension, tested viscosity value>=2200 into
mPasconcave-convex clay rod powder, the sticky Concave-convex clay rod powder particles of the height of selecting fineness≤0.074 millimeter.
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