CN1246459A - Ultra-light hayclite and industrial production method thereof - Google Patents

Ultra-light hayclite and industrial production method thereof Download PDF

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Publication number
CN1246459A
CN1246459A CN99115118A CN99115118A CN1246459A CN 1246459 A CN1246459 A CN 1246459A CN 99115118 A CN99115118 A CN 99115118A CN 99115118 A CN99115118 A CN 99115118A CN 1246459 A CN1246459 A CN 1246459A
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Prior art keywords
mud stone
colliery
overburden
superlight ceramsites
present
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CN99115118A
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Chinese (zh)
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CN1086182C (en
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马芸仙
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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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • 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
    • C04B18/04—Waste materials; Refuse
    • C04B18/12—Waste materials; Refuse from quarries, mining or the like
    • 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
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

An ultralight haydite is prepared from the mudstone as basic raw material which is the overburden of coal mine and another mudstone as expansion regulator whose Fe2O3 content is 5.94-7.11%, both of which feature low contents of Fe2O3 and CaO and high contents of Na2O and K2O, through proportioning, preheating at 400-450 deg.C for 10-20 min, and calcining at 1170-1230 deg.C for 10 min. Obtained haydite has a bulk density less than or equal to 500 Kg/cu.m.

Description

A kind of Superlight ceramsites and industrial process thereof
The present invention relates to a kind of material of construction, especially relate to a kind of particulate material and industrial process thereof.
The fast development of construction industry is had higher requirement to material of construction.Tap density≤500Kg/m 3Superlight ceramsites be a kind of lightweight, antidetonation, insulation, heat insulation, fireproof multi-use architecture material.Because the Superlight ceramsites easy construction is applied widely, can replace centimeter stone and sand, the preparation light concrete, on-the-spot pouring or prefabricated various types of materials for wall, thereby have the good prospect of marketing.
Luhe Coal Mine, Chuxiong Prefecture, Yunnan Prov. (hereinafter to be referred as: Lu closes the colliery) build the ore deposit from nineteen sixty, the history in existing 40 years through three technological transformation enlarging, has 480,000 tons of yearly capacities now, the over thousands of people of worker so far.The major product brown coal are mainly used in flue-cured tobacco, industry and the people's lives coal in six counties, state, Chuxiong (city).In recent years, because flue-cured tobacco is carried out " two control " policy, the coal sales volume descends significantly, estimates that a long period sales volume is all with at a low ebb from now on.Along with the minimizing of sales volume, this ore deposit supernumerary's problem is very outstanding, the reform and development of puzzlement enterprise, the existence that jeopardizes enterprise.Under this form, according to the market requirement, how research utilizes the colliery resource, and the exploitation readily marketable products become the task of top priority.
Lu has closed since the self-built ore deposit, colliery, and never the someone paid close attention to the special property of colliery overburden, though the colliery overburden once once had been used to fire clay brick, the sintering character of brick is poor, and the delamination phenomenon appears in finished bricks, and has to close clay brick factory.For a long time, the overburden that Lu closes the colliery abandons as roach always, has not only wasted resource but also polluted environment.This colliery overcoat does not have table soil (red, yellow clay), and the overcoat for mud stone layer " streaky pork " type alternate with the flour sand rock stratum does not have layering to adopt stripping in the past when peeling off, and discharging overburden is the mixture of mud stone and siltstone.So contain a large amount of siltstones in tens million of tons the overburden, thereby make the expansion character deterioration of mud stone, extremely scabrous problem is used in industrialization after becoming.
For this reason, the inventor has carried out the scientific research of thoroughgoing and painstaking ground.In the prior art, CN 86106748.7 discloses with open coal mine overburden (Huang, laterite and mud stone), without admixture or select diatomite for use or flyash, sand are that admixture carries out the agglomerating method, this method is actually mud stone and the table soil (or similar table soil of protecting the colliery) that can protect the colliery with China and prepares.But practice shows that this method has certain limitation, and the high thing of the expandable stripping of not all open coal mine all can be used as the raw material of producing Superlight ceramsites.For example: though the mud stone in the overburden of colliery, Eryuan County, Yunnan Province also has swelling property, but when baking ceramsite, can form too much liquation, will cause serious caking in the roasting kiln in process of production, colliery overburden to this type is still waiting research, wouldn't have the use value of suitability for industrialized production at present.
Lu is closed the colliery overburden to be made the roasting test result of system and shows that Lu closes the composition of each ore deposit point mud stone of colliery overburden as other mine, skewness, wherein 5.94%≤F E2O 3The mud stone expansion character of content≤7.11% is good, but the sample of most ore deposit points is at the artificial iron powder (F that adds E2O 3) after, the tap density grade of the haydite that goes out in low-temperature end (1170 ℃) roasting of expansion temperature scope has reduced by two to Three Estate when not adding iron powder, and mud stone that this explanation Lu closes in the peel ply of colliery lacks F in chemical ingredients E2O 3According to the way of routine is the sulfate slag that adds 4～5% cheapnesss, yet in suitability for industrialized production, produces wet method balling technique that leca adopts usually and be difficult to it is dispersed among the raw material fully.Moreover closing the colliery apart from Lu in more than 30 kilometer in cities and towns will certainly will increase production cost from shipping sulfate slag inside the city.Add the high red clay of iron content that CN 86106748.7 proposes if adopt, the add-on of clay is 15%～20%, and Lu closes the colliery overcoat does not have reddish yellow soil, near roping, vegetation around the colliery will be destroyed artificially, by the Law on Water and Soil Conservation of country's promulgation is not now allowed.Obviously, the technical scheme of CN 86106748.7 is inapplicable to the overburden that Lu closes the colliery.
The objective of the invention is at the deficiencies in the prior art and close the objective condition in colliery from Lu, provide a kind of and gather materials on the spot, only the mud stone that closes in the overburden of colliery with Lu is Superlight ceramsites and the corresponding industrialized preparing process that the raw material production quality meets national standard.
Purpose of the present invention can realize by following technical scheme:
The mean value of the Superlight ceramsites chemical ingredients that the present invention produces is (weight %):
SiO 2?????????????????????62.98
F e2O 3???????????????????5.64
Al 2O 3???????????????????18.09
C aO??????????????????????0.80
M gO??????????????????????2.59
N a2O?????????????????????3.32
K 2O??????????????????????5.72
loss??????????????????????0.02
SO 3??????????????????????0.84
Industrial process of the present invention is as follows:
1, the present invention serves as to produce base-material with the mud stone that Lu closes in the overburden of colliery, and closes 5.94%≤F in the colliery with Lu E2O 3The mud stone of content≤7.11% is the expansion conditioning agent, for example: use F E2O 3Content be that the mud stone of 5.94% or 6.61% or 7.11% ore deposit point is made conditioning agent, produce weight ratio A=6～7: 4～3 of base-material and conditioning agent;
2, deployed mud stone is crushed to≤particle of 0.3mm, stirs, humidifying is handled, and uses the nodulizer balling-up;
3, with pellet in 400 ℃～450 ℃ preheatings 10～20 minutes, 1170 ℃～1230 ℃ temperature section roastings 10 minutes, can make tap density≤500Kg/m 3Superlight ceramsites.
The present invention compared with prior art has following outstanding advantage:
1, according to professional data compilation, the high swelling clay material composition following (%) of preparation Superlight ceramsites:
Explanation SiO 2 ?Al 2O 3 ??Fe 2O 3 ?CaO????MgO Na 2O+K 2O
The USSR (Union of Soviet Socialist Republics) regulation ＜60 ?14～20 ?6～10(+FeO) ????＜7 ????3～5
Denmark Leca regulation 48～65 ?14～20 ?2～9 ?0～5???0～3 ????1～5
Japan's (ultralight and coventional type) regulation 60～70 ?15～25 ?5～10 ????0～5 ????3～4
China's haydite is produced the raw material ball requirement 54～65 ?14～20 ?6～9 ?2～4???0～3 ????1～5
The present invention is raw materials used 54～61 ?15～20 ?2～7.11 ?0-1.24?1-1.41 ????7～8
The raw materials used comprehensive sample of the present invention 58.76 ?15.57 ?4.74 ?1.16???1.41 ????7.78
From above institute column data as seen, the present invention produces raw materials used F E2O 3, CaO content is on the low side, and all be lower than domestic and international Superlight ceramsites raw materials used in the prescribed value scope of these two kinds of compositions, and N A2O+K 2O content overshoot scope.
The present invention compares Al with the chemical ingredients of the raw material admixtion of CN 86106748.7 2O 3Content is higher 2%, F E2O 3With CaO content on the low side 1～2%.Firing range of the present invention is 1170 ℃～1230 ℃, and whole expansion temperature section has all improved 30 ℃, and a small amount of liquation only appears in pellet under 1230 ℃ temperature, can not produce the clinkering phenomenon, has guaranteed industrially to carry out smoothly.
2, according to listed material chemical component among CN 86106748.7 embodiment and the raw materials used chemical ingredients of the present invention, calculate with haydite cylindrical compress strength statistics straight-line equation, its calculation result shows that the Superlight ceramsites intensity that the present invention produces meets state quality standard.
3, the present invention suits measures to local conditions, and closes the colliery with Lu and contains F E2O 3Slightly high mud stone is made the expansion conditioning agent, and inventive concept is very ingenious, though production method is simple, and processing ease, the Superlight ceramsites that is fired into has been obtained unforeseeable technique effect.The haydite quality is even, the surface forms bright and clean glaze, " the roasting test report " of machine works of Science and Technology Development Center of State Bureau of Building Materials Industry Changzhou light skeletal (haydite) physics and chemistry chamber shows, can guarantee to produce tap density≤500kg/m by distribution of the present invention 3Superlight ceramsites.
4, the present invention need not add sulfate slag, also need not add laterite and loess, has saved trucking costs widely, has reduced production cost, improves the potentiality that product is competed in market.Especially effectively avoided the large-area destruction of vegetation around the mine is helped environment protection, brings benefit to the next generation, remarkable social benefit has been arranged.
5, the present invention is to low F E2O 3, CaO, high N A2O, K 2The raw material of O content is suitably allocated, and the maturing temperature section improves 30 ℃ of whole mud stone that make Lu close the colliery and can both be used, and burns out the Superlight ceramsites that meets national standard.Thereby make the huge economic benefit of overburden generation in the colliery of having in decades close, turn waste into wealth as Lu of waste discharge.This makes up deficits and increases surpluses to enterprise, extricates oneself from a plight to play a key effect, and has demonstrated fully " Science and technology is the primary productive force ", and innovation and creation are magic weapons that enterprise can establish oneself in an unassailable position in fierce market competition.
By the following examples the present invention is described in detail, but that content of the present invention is not limited to embodiment is described.
Embodiment:
Numbering The raw material allotment Roasting Weight g Volume cm 3 Pellet density g/cm 3 Tap density scope Kg/m 3
Time (branch) Temperature (℃) Mean value
????1 ??A＝7∶3 ????10 ??1230 ??5.0 ???10.0 ??0.500
????10 ??1200 ??4.1 ???7.5 ??0.547 ??0.696 ?383????395
????10 ??1170 ??5.0 ???5.0 ??1.040
????2 ??A＝7∶3 ????10 ??1230 ??3.3 ???7.5 ??0.440
????10 ??1200 ??6.6 ???14.0 ??0.471 ??0.537 ?295????304
????10 ??1170 ??6.3 ???9.0 ??0.700
????3 ??A＝7∶3 ????10 ??1230 ??5.7 ???10.0 ??0.570
????10 ??1200 ??6.0 ???10.0 ??0.600 ??0.733 ?403????415
????10 ??1170 ??6.2 ???6.0 ??1.030
????4 ??A＝6∶4 ????10 ?1230 ??6.2 ???8.0 ??0.775
????10 ?1200 ??5.8 ???10.0 ??0.775 ?0.732 ??403????415
????10 ?1170 ??4.3 ???5.0 ??0.840
????5 ??A＝6∶4 ????10 ?1230 ??4.7 ???13.0 ??0.362
????10 ?1200 ??5.9 ???11.0 ??0.536 ?0.552 ??304????313
????10 ?1170 ??5.3 ???7.0 ??0.757
????6 ??A＝6∶4 ????10 ?1230 ??6.0 ???14.0 ??0.429
????10 ?1200 ??6.0 ???10.0 ??0.620 ?0.600 ??330???340
????10 ?1170 ??6.0 ???8.0 ??0.750
Numbering The raw material allotment Roasting Weight g Volume cm 3 Pellet density g/cm 3 Tap density scope Kg/m 3
Time (branch) Temperature (℃)
????7 Use F e2O 3Percent by weight is 7.11% mud stone ????10 ??1230 ??3.0 ??7.5 ????0.400 ????220????227
????10 ??1200 ??3.6 ??11.0 ????0.323 ????178????183
????10 ??1170 ??3.4 ??8.3 ????0.410 ????226????232
????8 Use Fe 2O 3Percent by weight is 6.61% mud stone ????10 ??1230 ??2.6 ??8.0 ????0.319 ????175????181
????10 ??1200 ??1.5 ??4.5 ????0.333 ????183????189
????10 ??1170 ??3.1 ??7.0 ????0.443 ????244????251
????9 Use F e2O 3Percent by weight is 5.94% mud stone ????10 ??1230 ??3.1 ??10.1 ????0.308 ????169????174
????10 ??1200 ??2.1 ??6.1 ????0.344 ????189????195
????10 ??1170 ??5.3 ??10.0 ????0.530 ????292????300

Claims (2)

1, a kind of Superlight ceramsites is characterized in that with the mud stone in Luhe Coal Mine, Chuxiong Prefecture, Yunnan Prov.'s overburden being that raw material is prepared, and the percent by weight mean value of product chemical ingredients is:
SiO 2??????????????????????62.98
F e2O 3????????????????????5.64
Al 2O 3????????????????????18.09
C aO???????????????????????0.80
M gO???????????????????????2.59
N a2O??????????????????????3.32
K 2O???????????????????????5.72
loss???????????????????????0.02
SO 3???????????????????????0.84
2, a kind of industrial process of Superlight ceramsites is characterized in that adopting following steps:
1. the present invention serves as to produce base-material with the mud stone in Luhe Coal Mine, Chuxiong Prefecture, Yunnan Prov.'s overburden, and closes 5.94%≤F in the colliery with Lu E2O 3The mud stone of content≤7.11% is the expansion conditioning agent; Produce weight ratio A=6～7: 4～3 of base-material and conditioning agent;
2. deployed mud stone is crushed to≤particle of 0.3mm, stirs, humidifying is handled, and uses the nodulizer balling-up;
3. with pellet in 400 ℃～450 ℃ preheatings 10～20 minutes, at 1170 ℃～1230 ℃ temperature section, roasting 10 minutes can make tap density≤500Kg/m 3Superlight ceramsites.
CN99115118A 1999-09-02 1999-09-02 Ultra-light hayclite and industrial production method thereof Expired - Fee Related CN1086182C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN99115118A CN1086182C (en) 1999-09-02 1999-09-02 Ultra-light hayclite and industrial production method thereof

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Application Number Priority Date Filing Date Title
CN99115118A CN1086182C (en) 1999-09-02 1999-09-02 Ultra-light hayclite and industrial production method thereof

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CN1086182C CN1086182C (en) 2002-06-12

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101229977B (en) * 2007-01-22 2011-12-21 宝山钢铁股份有限公司 Novel mold-casting steel chassis building materials and method for manufacturing same
CN107586149A (en) * 2017-08-29 2018-01-16 武钢资源集团有限公司 The method that Superlight ceramsites are prepared using high-ductility admaic earth
CN112441826A (en) * 2020-11-27 2021-03-05 华新水泥股份有限公司 Ultra-light ceramsite and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1006060B (en) * 1986-10-07 1989-12-13 昆明市建筑材料科学研究所 Superlight ceramsites and their compounding process
CN1146436A (en) * 1995-09-27 1997-04-02 云南省可保煤矿 Light haycite and preparation method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101229977B (en) * 2007-01-22 2011-12-21 宝山钢铁股份有限公司 Novel mold-casting steel chassis building materials and method for manufacturing same
CN107586149A (en) * 2017-08-29 2018-01-16 武钢资源集团有限公司 The method that Superlight ceramsites are prepared using high-ductility admaic earth
CN107586149B (en) * 2017-08-29 2020-01-21 武钢资源集团有限公司 Method for preparing ultralight ceramsite by using high-plasticity red clay
CN112441826A (en) * 2020-11-27 2021-03-05 华新水泥股份有限公司 Ultra-light ceramsite and preparation method thereof

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