CN1263064A - Production method of waste slag hollow brick for mining industry - Google Patents
Production method of waste slag hollow brick for mining industry Download PDFInfo
- Publication number
- CN1263064A CN1263064A CN99100725A CN99100725A CN1263064A CN 1263064 A CN1263064 A CN 1263064A CN 99100725 A CN99100725 A CN 99100725A CN 99100725 A CN99100725 A CN 99100725A CN 1263064 A CN1263064 A CN 1263064A
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- China
- Prior art keywords
- hollow brick
- accordance
- raw material
- mixture
- roasting
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Classifications
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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
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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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/068—Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
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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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The production method of mine industrial waste slag hollow brick is characterized by using mine industrial waste slags of powdered fine sand, loam, ferrous tailings and diorite, etc. as raw material for making brick and adopting the steps of mixing materials, ageing, vacuum extruding-forming, drying and burning to obtain the invented product. Its raw material source is extensive, product quality is excellent and cost is low.
Description
The invention belongs to building material field, more particularly, is a kind of method of making hollow brick with mining slag.
China's the enforcement period of the ninth five-year plan, newly-built industry and covil construction can be realized 52.2 hundred million m
2, estimate 13,050 hundred million of quota of expenditure bricks, if will ruin field 1750km with clay-brickmaking fully
2, China's arable area accounts for the world 7%, accounts for 22% world population and will support, and it is very urgent therefore to protect farmland.With the hollow brick is the novel wall material of representative, has that unit weight is light, thermal resistance is big, heat-insulation and heat-preservation, advantage such as with low cost, is desirable building materials (Building technology, NO3,1992 that replace solid brick; Sun Jiying writes, " hollow brick and building ", China Construction Industry Press, in January, 1988; W. this Dare, " heavy clay industry handbook, Shaanxi science tech publishing house, in August, 1987).The clay that the Chinese government has prohibited is that the new brick field of raw material breaks ground, and the urban architecture and the skeleton construction filling wall that are defined in more than zero rice forbid to use ([1992] No. 66 files of promulgated by the State Council; Property tax is sent out file [1994] No. 001), and " property tax is sent out file [1996] No. 20 " regulation is that the building material of main material production is enjoyed preferential on the tax revenue with the mining slag.
About the manufacturing of hollow brick, adopt different material, its preparation method is also different, as traditional clay-brickmaking technology for adopting soil, compression moulding (pressure is below the 1.0MPa), about the seasoning first quarter moon, external fuel added into firinghole of a kiln roasting 6-10 days.With various waste residues is that the method that raw material is made hollow brick also has report, as being raw material system hollow brick with the coal gangue, need add clay or shale usually; With the flyash system hollow brick that power plant discharges, need add the clay of 30-60%.
The objective of the invention is to overcome some shortcomings of present manufacturing hollow brick method, proposing a kind of all is the simple hollow brick manufacture method of raw material and technology with the mining slag.
Realize the main technical schemes of the object of the invention: with the mining slag is raw material, and by batching, ageing, vacuum is squeezed steps such as mud moulding, drying and roasting and made hollow brick.
The method that the present invention prepares hollow brick may further comprise the steps:
1. batching: by formulating of recipe, in mining slag, mix solid fuel, and thorough mixing, pulverizing;
2. ageing: (1) is gone on foot the water that material sprays the 8-10% of slag weight, make its humidifying, in the input aging bunker, stacked 72-120 hour down at 5-30 ℃;
3. plasticising: the material milling roller after (2) step ageing is broken, and the water of the 14-16% of adding slag weight fully stirs homogenizing, to improve the plasticity-and the homogenization degree of raw material;
4. extrusion under vacuum: the material that (3) step is pulverized is in vacuum tightness 0.092 * 10
5Below the Pa, extrusion pressure is to extrude adobe under the condition of 2.0-4.2MPa;
5. dry: as, to descend slow dry 48-72 hour in 50-150 ℃ in dry kiln ISN neat (4) step adobe;
6. roasting: dried adobe is inserted in the roasting kiln, the fuel that mixes in it 150-700 ℃ of preheating zone, 700-1100 ℃ roast area and 1100-40 ℃ of heat preservation zone perfect combustion successively, when releasing energy, finish himself roasting and vitrescence crystallization.
Described raw material of the present invention (1) step is the powder fine sand that metallurgical mine is discharged, and mild clay, iron tailings and diorite can be selected wherein two or more, and its weight percentage is respectively 20-80%, 0-60%, 5-30%, 0-60%; The waste residue that described (3) step pulverizes and the granularity of solid fuel mixture are below the 3mm, and wherein granularity 0.154mm is following surpasses 60%; Described solid fuel comprises coal, coal gangue, coal slime or its mixture, and its amount is decided by calorific value of fuel, and the present invention requires fuel value to reach 450 kilocalories/more than the kilogram.
The material water ratio of (4) of the present invention described extrusion molding of step is 14-18%.
Can make the hollow brick of different shape by method of the present invention.
Major advantage of the present invention:
The present invention is because used raw material all is a mining slag, and raw material is easy to get, and production cost is low, and instead of clay saves soil and economizes ground, meets the industry policy of resource and environmental protection; By the hollow brick intensity height that method of the present invention makes, outward appearance is bright and clean, and freeze-thawing resistant is weather-proof, and good heat insulation can be applicable to bearing wall and skeleton construction filling wall, is that the ideal of eliminating traditional solid brick substitutes materials for wall.In sum, the present invention has shown the bright prospects of mining slag comprehensive utilization reducing environmental pollution, forbid clay-brickmaking, greatly developing hollow brick and promote and have outstanding advantage aspect four in the green energy conservation dwelling house.
Further set forth characteristics of the present invention below by example.
Example 1
This example is that preparation is the hollow brick of raw material with powder fine sand, mild clay and the iron tailings that Ma'an Mountain's gushan iron mine discharges, and its weight proportion is respectively 60%, 30% and 10%; Carbonaceous materials added to raw materials is selected from accurate southern lean coal, and thermal value is 4900 kilocalorie/kilograms, and its adobe internal combustion heat is 600 kilocalorie/kilograms.Raw material and fuel by prescription drops into stir, roll plasticising, extrusion under vacuum, Automatic Code base, drying, roasting and kiln discharge through pulverizing, ageing, brute force.The processing parameter of control is: below the raw material pulverizing granularity 3mm, and water ratio 14%, plasticity index 13, maturing temperature are 980 ℃.
Example 2
The raw material type of this examples preparation hollow brick is identical with example 1, its proportioning raw materials: powder fine sand 30%, mild clay 50% and iron tailings 20%; The solid fuel kind of mixing is constant, and adobe internal combustion heat is 600 kilocalorie/kilograms.The processing parameter of control is: below the raw material pulverizing granularity 3mm, water ratio is 16%, and plasticity index is 10, and maturing temperature is 1000 ℃.
Example 3
This example is that preparation serves as a preparation hollow brick raw material with powder fine sand, mild clay, iron tailings and diorite, and its weight ratio is respectively 50%, 20%, 15%, 15%; Solid fuel and internal combustion heat are with example 1.The processing parameter of control is: below the raw material granularity 3mm, and water ratio 14%, plasticity index 13,1080 ℃ of maturing temperatures.
Example 4
The weight ratio of this examples preparation hollow brick raw material is: powder fine sand 40%, iron tailings 10%, diorite 50%.Solid fuel and internal combustion heat are with example 1.The processing parameter of control is: below the raw material granularity 3mm, water ratio 15%, plasticity index are 12,1100 ℃ of maturing temperatures.
The product performance of example 1-4 see Table 1.
As shown in Table 1, the ultimate compression strength of the hollow brick that method of the present invention makes surpasses 49MPa, and (press national regulation, excellent hollow brick pressure resistance motherwort is 20MPa) illustrates and utilize mining slag can make the fine hollow brick fully.
Table 1
| Product index | Example 1 | Example 2 | Example 3 | Example 4 |
| Volumetric shrinkage, % | ????4.96 | ????7.67 | ???5.38 | ???8.62 |
| Water-intake rate, % | ???11.77 | ???20.36 | ??13.60 | ??10.16 |
| Ultimate compression strength, MPa | ???56.70 | ??117.70 | ??61.30 | ??49.70 |
| The loading of anti-folding, KN | ???10.30 | ???13.80 | ??11.20 | ???9.40 |
Claims (6)
1. the preparation method of a mining slag hollow brick is characterized in that preparation process may further comprise the steps:
(1) batching: in mining slag, mix solid fuel, and thorough mixing, pulverizing;
(2) ageing: the mixture after (1) step pulverized sprays the water of the 8-10% of waste residue weight, makes its humidifying, stacks 72-120 hour down at 5-30 ℃;
(3) plasticising: the raw material milling roller after (2) step ageing is broken, adds the 14-16% water of waste residue weight again, fully stirs homogenizing;
(4) extrusion under vacuum: in vacuum tightness 0.092 * 10
5Extrude adobe below the Pa and under the extrusion pressure 2.0-4.0MPa;
(5) drying: in dry kiln, descended slow dry 48-72 hour in 50-150 ℃;
(6) roasting; The exsiccant adobe is inserted in the roasting kiln, the fuel that mixes in it is 150-700 ℃ of preheating zone, and perfect combustion in the heat preservation zone of 700-1100 ℃ of roast area and 1100-40 ℃ is in release of heat, finish self roasting and vitrescence crystallization, obtain needed finished product.
2. in accordance with the method for claim 1, it is characterized in that the described mining slag of step (1) is selected from two or more the mixture in powder fine sand, mild clay, iron tailings and the diorite, its weight percent is respectively 20-80%, 0-60%, 5-30%, 0-60%.
3. in accordance with the method for claim 1, it is characterized in that the described solid fuel of step (1) comprises coal, coal gangue, coal slime or its mixture, its internal combustion value reaches 450 kilocalories/more than the kilogram.
4. in accordance with the method for claim 1, it is characterized in that it is below the 3mm that the described mixture of step (3) is crushed to granularity, what wherein granularity 0.154mm was following surpasses 60%.
5. in accordance with the method for claim 1, when it is characterized in that step (4) extrusion molding, the plasticity index of material is greater than 8.
6. in accordance with the method for claim 1, when it is characterized in that step (4) extrusion molding, the water ratio of material is 14-18%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100725A CN1098821C (en) | 1999-02-11 | 1999-02-11 | Production method of waste slag hollow brick for mining industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100725A CN1098821C (en) | 1999-02-11 | 1999-02-11 | Production method of waste slag hollow brick for mining industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1263064A true CN1263064A (en) | 2000-08-16 |
| CN1098821C CN1098821C (en) | 2003-01-15 |
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ID=5270170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99100725A Expired - Fee Related CN1098821C (en) | 1999-02-11 | 1999-02-11 | Production method of waste slag hollow brick for mining industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1098821C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301930C (en) * | 2005-08-16 | 2007-02-28 | 西万明 | Ecological energy-saving brick sintering from iron mill run gangue |
| CN100336770C (en) * | 2005-11-09 | 2007-09-12 | 南京鑫翔新型建筑材料有限责任公司 | Tailing shale sintered product and preparation method thereof |
| CN100368334C (en) * | 2005-06-27 | 2008-02-13 | 宝钢集团上海梅山有限公司 | Production process of sintered brick with iron tail ore as material |
| CN102515685A (en) * | 2011-12-27 | 2012-06-27 | 长安大学 | Coal gangue building thermal insulation exterior wall brick and production method thereof |
| CN104150861A (en) * | 2014-07-29 | 2014-11-19 | 南京钢铁股份有限公司 | Sintered brick and preparation method thereof |
| CN105645917A (en) * | 2014-08-08 | 2016-06-08 | 范庆霞 | Formula for producing sintered bricks from iron tailings and application of formula |
| CN111499349A (en) * | 2020-04-23 | 2020-08-07 | 西安煤科动力科技有限公司 | Light hollow building block and preparation method thereof |
| CN113831149A (en) * | 2021-09-22 | 2021-12-24 | 滁州方大矿业发展有限公司 | Method for manufacturing building hollow brick by using mining tailing slag |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1021771C (en) * | 1987-03-31 | 1993-08-11 | 同济大学 | Production technique of face brick with tailings of iron ore |
| CN1078450A (en) * | 1992-05-03 | 1993-11-17 | 陈红剑 | Energy-saving clinker brick |
| CN1191851A (en) * | 1998-02-19 | 1998-09-02 | 张天保 | Sintered phosphate sludge energy-saving brick |
| CN1941928A (en) * | 2005-09-29 | 2007-04-04 | 上海乐金广电电子有限公司 | Safety automobile tracting method by mobile data terminal |
-
1999
- 1999-02-11 CN CN99100725A patent/CN1098821C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368334C (en) * | 2005-06-27 | 2008-02-13 | 宝钢集团上海梅山有限公司 | Production process of sintered brick with iron tail ore as material |
| CN1301930C (en) * | 2005-08-16 | 2007-02-28 | 西万明 | Ecological energy-saving brick sintering from iron mill run gangue |
| CN100336770C (en) * | 2005-11-09 | 2007-09-12 | 南京鑫翔新型建筑材料有限责任公司 | Tailing shale sintered product and preparation method thereof |
| CN102515685A (en) * | 2011-12-27 | 2012-06-27 | 长安大学 | Coal gangue building thermal insulation exterior wall brick and production method thereof |
| CN102515685B (en) * | 2011-12-27 | 2013-06-19 | 长安大学 | Coal gangue building thermal insulation exterior wall brick and production method thereof |
| CN104150861A (en) * | 2014-07-29 | 2014-11-19 | 南京钢铁股份有限公司 | Sintered brick and preparation method thereof |
| CN104150861B (en) * | 2014-07-29 | 2016-06-29 | 南京钢铁股份有限公司 | A kind of fired brick and preparation method thereof |
| CN105645917A (en) * | 2014-08-08 | 2016-06-08 | 范庆霞 | Formula for producing sintered bricks from iron tailings and application of formula |
| CN111499349A (en) * | 2020-04-23 | 2020-08-07 | 西安煤科动力科技有限公司 | Light hollow building block and preparation method thereof |
| CN113831149A (en) * | 2021-09-22 | 2021-12-24 | 滁州方大矿业发展有限公司 | Method for manufacturing building hollow brick by using mining tailing slag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1098821C (en) | 2003-01-15 |
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