CN102276212B - Steamed and pressed light environment-friendly brick produced from waste building residues and production method thereof - Google Patents
Steamed and pressed light environment-friendly brick produced from waste building residues and production method thereof Download PDFInfo
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- CN102276212B CN102276212B CN2010102000614A CN201010200061A CN102276212B CN 102276212 B CN102276212 B CN 102276212B CN 2010102000614 A CN2010102000614 A CN 2010102000614A CN 201010200061 A CN201010200061 A CN 201010200061A CN 102276212 B CN102276212 B CN 102276212B
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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
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Abstract
The invention relates to a steamed and pressed light environment-friendly brick produced from waste building residues and a production method thereof. The production method is characterized in that waste building powdery residues, rubbish ash residues, waste stainless steel powdery residues, Portland cement, calcium oxide, calcium sulfate, sodium chloride, rosin pyrolyticpolymer, calcium sulfonate, sodium sulfate, sodium aluminate and water are used as raw materials, and the steamed and pressed light environment-friendly brick produced from the waste building residues is produced through the steps of: adding the raw materials into a mixer, mixing into a wet state, extruding and molding through mechanical vibration, curing with steam and naturally cooling. The raw materials of the steamed and pressed light environment-friendly brick can also be made into hollow blocks, crown wall bricks, square bricks and sidewalk bricks of various specifications, and the steamed and pressed light environment-friendly brick has the advantages of light weight, high strength, no pollution, low cost and good benefits, and is in accordance with the requirements on energy saving, emission reduction, environment friendliness, and low-carbon economy development in China.
Description
Technical field
The present invention relates to a kind of autoclaved lightweight environmental protection brick of producing with building waste residue; Specifically it is with building waste residue, cinder, melting waste slag; Through fragmentation, sorting, pulverizing, the powder after sorting is the autoclaved lightweight environmental protection brick of main material production again, genus waste treatment field.
The invention still further relates to the method for manufacture of this autoclaved lightweight environmental protection brick.
Background technology
Building waste residue is useless brick and tile and the old wall waste residue blended solid waste that produces in the cullet that produces in the discarded concrete waste material that in the construction process, produces of city, the fitting-up process, useless ceramics, useless marble grouan fragment, the reconstruction of the old city town removal construction process.Along with China's rapid development of economy, the whole nation is annual to reach more than 200,000,000 tons about 100,000,000 tons of the solid waste that new building produces, China's existing building 40,000,000,000 m because of removing the solid waste that old building produced
2, calculated in 100 years according to the buildings life cycle, remove old building every year at 400,000,000 m
2, produce about 500,000,000 tons of old building solid castoff every year, add newly-built construction, decorations etc., China will produce building solid castoff every year more than 600,000,000 tons.Along with China's urban population sharp increase, human development has got into a new stage.Because improving constantly of people's living standard, people also progressively improve the decorations specification of quality of housing construction.Require material of construction lightweight, high-strength, multi-functional, integrated, energy-conserving and environment-protective etc., so the generation of building waste residue will get more and more.
At present, China mainly is to adopt simple land-fill method to handle to building solid treatment of wastes produced method, accumulates over a long period, occupies mountain region and good farmland, worsens physical environment, produce offspring healthy with people of serious harm biology.Original dust and other PM for particulate matters in the building solid castoff, or the PM for particulate matter that in the process of storing up, produces receive Exposure to Sunlight, drench with rain, ballooning, infiltrate soil, flow into rivers,lakes and seas with rainwater, will cause water source, soil and topsoil.If unprocessed direct landfill will work the mischief to air, produce new secondary pollution, worsen environment, cause disease popularity, threaten the existence of animal and human's class.Long-term landfill need take a large amount of land resources, how the building solid refuse is implemented renewable resourceization, reduces the exploitation to natural resources, to keep the nature eubiosis; Scientifically building waste residue is carried out treatment and disposal, make it reach minimizing, stabilization, innoxious and resource utilization.
Summary of the invention
The object of the invention provides a kind of autoclaved lightweight environmental protection brick that uses building waste residue, cinder, smelting stainless steel waste residue as raw material production just for the problem that solves above-mentioned existence; Thereby solved the pollution that building waste residue produces environment; Solved the resource recycling of building waste residue, cinder and melting waste slag again; Turn waste into wealth, change evil and be benefit, realized that the resource benign cycle of solid waste utilizes.
The present invention also provides the method for manufacture of building waste residue autoclaved lightweight environmental protection brick.
The objective of the invention is to realize by following technical proposal;
A kind of autoclaved lightweight environmental protection brick of producing with building waste residue, it is processed by the following weight proportion raw material;
40～60 parts of building waste residue powders
20～30 parts of cinder powders
20～30 parts of smelting stainless steel waste residue powders
15～20 parts of silicate cements
8～13 parts in quicklime
3～6 parts in calcium sulfate
0.5～1 part in sodium-chlor
0.005～0.02 part of colophonium pyrolytic polymer,
0.2～0.3 part of calcium sulphonate
0.02～0.05 part in sodium sulfate
0.03～0.06 part of sodium aluminate
13～23 parts in water,
Described building waste residue powder is the cullet that produces in the discarded concrete waste material that produces in the municipal construction process of construction, the fitting-up process, useless porcelain, useless marble, useless grouan, reconstruction of the old city town the remove useless brick and tile that produce and the blended solid waste of old wall waste residue; After removing scrap metal through fragmentation, sorting, magnetic separation, after drying, rolling sorting, process particle diameter again and be powder less than-3mm;
Described cinder powder is the waste residue of discharging behind the domestic garbage burning electricity generation, removes through sorting, pulverizing, magnetic separation and processes particle diameter behind the scrap metal and be the powder less than-3mm.
Described smelting stainless steel waste residue powder; Be flue dust, oxide compound, slag former, desulfurization product, the furnace lining material of smelting stainless steel process discharge and the waste residue blended solid waste that discharges at hot rolling, cold rolling operation stainless steel; Through after fragmentation, sorting, pulverizing, magnetic separation, removal scrap metal,, deodorizing, sterilization, huge legendary turtle process its particle diameter after closing processing and be powder less than-3mm.
The method of manufacture of the autoclaved lightweight environmental protection brick of producing with building waste residue, it is undertaken by following step:
(a) with 40～60 weight parts building waste residue powder of (down together); 20～30 parts cinder powder; 20～30 parts smelting stainless steel waste residue powder; 15～20 parts silicate cement; 8～13 parts quicklime powder; 3～6 parts calcium sulfate powder; 0.5～1 part sodium-chlor; 0.005～0.02 part colophonium pyrolytic polymer; 0.2～0.3 part calcium sulphonate; 0.02～0.05 part sodium sulfate; 0.03 the water of～0.06 part sodium aluminate and 13～23 parts is raw material to add double-shaft mixing agitator and stirs and use the mechanical vibration extrusion molding after being moist shape; Under the pressure of 25～30Mpa, manufacture building waste residue autoclaved lightweight environmental protection adobe
(b) send the building waste residue light-weight environment-friendly adobe after the moulding to autoclave again and carry out vapor cure, the heating 2～3 hours that heats up was earlier spent constant temperature 5～8 hours 95～100 again, lowered the temperature 1～2 hour naturally then, processed building waste residue autoclaved lightweight environmental protection brick product.
Its powder particle diameter of described quicklime and calcium sulfate is-0.2mm.
It is the main raw material of autoclaved lightweight environmental protection brick that the present invention adopts building waste residue, cinder, smelting stainless steel waste residue, selects multiple additives for use, and silicate cement, quicklime powder and calcium sulfate powder are the gelling material of light-weight environment-friendly brick; Selecting calcium sulphonate for use is water reducer; Sodium-chlor is frostproofer; Colophonium pyrolytic polymer is an air entrapment agent, and sodium aluminate is that accelerating chemicals and sodium sulfate are the performance that hardening accelerator improves and improve light-weight environment-friendly brick, and the durability index such as impermeability, freeze-thaw resistance of building waste residue autoclaved lightweight environmental protection brick is increased substantially.The specification of quality of these over-all properties may command construction materials.Advantages such as that above-mentioned multiple additives has is dispersed strong, water-reducing rate is high, volume is few, efficient, process stabilizing.Be convenient to produce and have good heat-resisting and permanent stability; Can strengthen the ultimate compression strength of building waste residue autoclaved lightweight environmental protection brick.
It is the raw material of autoclaved lightweight environmental protection brick that the present invention selects the cinder powder for use; Be that it contains chemical ingredientss such as a large amount of silicon-dioxide, aluminium sesquioxide, red oxide of iron, quicklime; In the vapor cure process, has the potential hydration activity; It can with calcium hydroxide attack at normal temperatures, generate more stable hydrated calcium silicate and drated calcium aluminate.One deck hydrated product in cinder powder and the formation of other spikes surface gets up cinder powder and other spike gluings, forms the materials for wall with certain physical and mechanical property.
The method of manufacture of building waste residue autoclaved lightweight environmental protection brick of the present invention; Be to be raw material with building waste residue powder, cinder powder, smelting stainless steel waste residue powder, silicate cement, quicklime powder, calcium sulfate powder, sodium-chlor frostproofer, colophonium pyrolytic polymer air entrapment agent, calcium sulphonate water reducer, sodium sulfate hardening accelerator, sodium aluminate accelerating chemicals and water; Use the mechanical vibration extrusion molding after adopting the double-shaft mixing agitator stirring to be moist shape; Under the pressure of 25～30Mpa, manufacture building waste residue autoclaved lightweight environmental protection adobe; Send the building waste residue light-weight environment-friendly adobe after the moulding to autoclave again and carry out vapor cure, the heating 2～3 hours that heats up was earlier spent constant temperature 5～8 hours 95～100 again; Naturally lowered the temperature 1～2 hour then, process building waste residue autoclaved lightweight environmental protection brick product.Thereby solved building waste residue, cinder, the difficult problem of smelting stainless steel waste residue processing, realized the resource utilization recycle of building waste residue cinder melting waste slag, to reduce pollution to physical environment.
Also can be made into holllow building block, paving tile, the Route for pedestrians brick of different size model with raw material of the present invention.
According to the invention technology to produce environmentally friendly brick autoclaved lightweight construction waste, construction materials by the State under the relevant quality inspection department inspection, the technical indicators have reached the state building wall material standards.
Building materials research institute building material product quality test center detected result is following through Guangdong Province:
The building waste residue light-weight environment-friendly brick detects: according to Guangzhou capital construction commission file: (2002) No. 15 literary compositions of fringe building and JC525-93 standard.Specification: 240x115x53mm.
A) ultimate compression strength: 10 MV: 12Mpa, monolithic minimum value: 9Mpa,
B) rupture strength: mean value: 3.3Mpa, monolithic minimum of a value: 2.8Mpa,
C) water-intake rate 15.8%,
D) volume density is: 1502Kg/m
3,
E) radioactivity: internal radiation: 0.3, external radiation exposure: 0.6, be superior to national standard.Test basis: GB6566-2001 " the radioactive material nucleic is limited the quantity of "
The test basis of building waste residue light-weight hollow building block made: GB/T15229-2002; Specification is: 390mm * 190mm * 190mm; Compression strength mean value is: 8.1Mpa; The monolithic minimum of a value is: 6.8Mpa; Dry apparent density is: 1032kg/m3; Contract with dry rate is: 0.023%, all be better than 5.0 grades standard of national regulation.
Owing to take technique scheme technology of the present invention to have following advantage and effect:
A) building waste residue autoclaved lightweight environmental protection brick of the present invention is lighter than solid clay brick, has certain sound insulation, heat insulation, energy-saving effect etc., therefore can alleviate the deadweight of buildings and prolong work-ing life of high-rise building;
b) Production process is simple, no waste emissions, in line with national energy conservation, low-carbon economy and circular economy policy and the State Council Document No. 66 "On vigorously develop energy, land, water, materials, waste utilization, heat , insulation and other new construction wall material "requirement spirit, and less investment, low cost, good benefits;
C) utilize building waste residue, cinder, smelting stainless steel waste residue to produce light-weight environment-friendly brick and substitute traditional solid clay brick, be green, environmental protection, energy-saving building material, development prospect is widely arranged;
D) solved building waste residue, cinder, smelting stainless steel waste residue need take a large amount of land resources and cause secondary pollution easily in the landfill process a difficult problem; Both protected environment; Practiced thrift the soil again, the resource utilization of building waste residue, cinder, melting waste slag is reached more than 98%.
Embodiment
Embodiment 1
The useless brick and tile and the old wall waste residue blended solid waste that produce in the cullet that produces in the discarded concrete waste material that city construction engineering is produced in the construction process, the fitting-up process, useless porcelain, useless marble, useless grouan, the reconstruction of the old city town removal construction process; After removing scrap metal through fragmentation, sorting, pulverizing, magnetic separation, after drying, rolling sorting, process particle diameter again and be building waste residue powder less than-3mm;
With the rubbish waste residue of domestic refuse, remove through sorting, pulverizing, magnetic separation and to process particle diameter behind the scrap metal and be cinder powder less than-3mm through discharging behind the burning electricity generation.
With flue dust, oxide compound, slag former, desulfurization product, the furnace lining material of smelting stainless steel process discharge and the blended solid wastes such as waste residue that discharge at hot rolling, cold rolling operation stainless steel; Behind fragmentation, sorting, pulverizing, magnetic separation, removal scrap metal; After deodorizing, sterilization, huge legendary turtle are closed processing, process its particle diameter and be powder less than-3mm smelting stainless steel waste residue
Building waste residue powder 40kg, cinder powder 30kg, smelting stainless steel waste residue powder 20kg and silicate cement 20kg, the particle diameter of getting above-mentioned preparation is the-quicklime powder 8kg of 0.2mm, calcium sulfate powder 6kg, sodium-chlor 0.5kg, colophonium pyrolytic polymer 0.02kg; Calcium sulphonate water reducer 0.2kg, sodium sulfate 0.02kg sodium aluminate 0.06kg and water 13kg; Above-mentioned raw materials is added double-shaft mixing agitator to be stirred and to use the mechanical vibration extrusion molding after being moist shape; Under the pressure of 30Mpa, make the building waste residue autoclaved lightweight environmental protection adobe of moulding; Send the building waste residue light-weight environment-friendly adobe after the moulding to autoclave again and carry out vapor cure, the heating 3 hours that heats up was earlier spent constant temperature 8 hours 95 again; Naturally lowered the temperature 2 hours then, process building waste residue autoclaved lightweight environmental protection brick product.Mean compressive strength is after testing: 12Mpa, rupture strength is: 3.3Mpa.Water-intake rate 15.8%, volume density 1502kg/m
3, radioactivity: internal radiation 0.3, external radiation exposure 0.6, requirement all is up to state standards.Be specification product.
Embodiment 2
Building waste residue powder 45kg, cinder powder 25kg, smelting stainless steel waste residue powder 28kg and silicate cement 16kg, the particle diameter of getting embodiment 1 is the-quicklime powder 9kg of 0.2mm, calcium sulfate powder 4kg, sodium-chlor frostproofer 0.6kg, colophonium pyrolytic polymer air entrapment agent 0.008kg; Calcium sulphonate water reducer 0.25kg, sodium sulfate hardening accelerator 0.03kg sodium aluminate accelerating chemicals 0.04kg and water 15kg; Above-mentioned raw materials is added double-shaft mixing agitator to be stirred and to use the mechanical vibration extrusion molding after being moist shape; Under the pressure of 28Mpa, make the building waste residue light-weight environment-friendly adobe of moulding; Send the building waste residue light-weight environment-friendly adobe after the moulding to autoclave again and carry out vapor cure, the heating 2.5 hours that heats up was earlier spent constant temperature 7 hours 98 again; Naturally lowered the temperature 1.5 hours then, process building waste residue autoclaved lightweight environmental protection brick product.The average compressive strength testing: 11Mpa, bending strength: 2.8Mpa, for qualified products.
Embodiment 3
Building waste residue powder 60kg, cinder powder 20kg, smelting stainless steel waste residue powder 30kg and silicate cement 15kg, the particle diameter of getting embodiment 1 is the-quicklime powder 13kg of 0.2mm, calcium sulfate powder 3kg, sodium-chlor 1.0kg, colophonium pyrolytic polymer 0.005kg; Calcium sulphonate 0.3kg, sodium sulfate 0.03kg sodium aluminate 0.06kg and water 23kg; Above-mentioned raw materials is added double-shaft mixing agitator to be stirred and to use the mechanical vibration extrusion molding after being moist shape; Under the pressure of 29Mpa, make the building waste residue light-weight hollow building block made of moulding; Again the building waste residue light-weight hollow building block made after the moulding is delivered to autoclave and carry out vapor cure, the heating 2 hours that heats up was earlier spent constant temperature 5 hours 100 again; Naturally lowered the temperature 2 hours then, process building waste residue autoclaved lightweight holllow building block product.Through detecting mean compressive strength be: 8.1Mpa, the monolithic minimum value is: 6.8Mpa, dry apparent density is: 1032kg/m
3, contract with dry rate is: 0.023%, all be superior to 5.0 grades standard of national regulation.Be specification product.
Embodiment 4
Building waste residue powder 50kg, cinder powder 28kg, smelting stainless steel waste residue powder 26kg and silicate cement 18kg, the particle diameter of getting embodiment 1 is the-quicklime powder 12kg of 0.2mm, calcium sulfate powder 5kg, sodium-chlor 0.7kg, colophonium pyrolytic polymer 0.01kg; Calcium sulphonate 0.23kg, sodium sulfate 0.04kg sodium aluminate 0.05kg and water 18kg; Above-mentioned raw materials is added double-shaft mixing agitator to be stirred and to use the mechanical vibration extrusion molding after being moist shape; Under the pressure of 26Mpa, make the building waste residue light-weight environment-friendly adobe of moulding; Send the building waste residue light-weight environment-friendly adobe after the moulding to autoclave again and carry out vapor cure, the heating 2.5 hours that heats up was earlier spent constant temperature 8 hours 95 again; Naturally lowered the temperature 1.5 hours then, process building waste residue autoclaved lightweight environmental protection brick product.The average compressive strength testing: 11.5Mpa, bending strength: 3Mpa, for qualified products.
Embodiment 5
Building waste residue powder 55kg, cinder powder 26kg, smelting stainless steel waste residue powder 25kg and silicate cement 19kg, the particle diameter of getting embodiment 1 is the-quicklime powder 11kg of 0.2mm, calcium sulfate powder 6kg, sodium-chlor 0.8kg, colophonium pyrolytic polymer 0.015kg; Calcium sulphonate 0.28kg, sodium sulfate 0.05kg sodium aluminate 0.06kg and water 20kg; Above-mentioned raw materials is added double-shaft mixing agitator to be stirred and to use the mechanical vibration extrusion molding after being moist shape; Under the pressure of 25Mpa, make the building waste residue light-weight environment-friendly adobe of moulding; Send the building waste residue light-weight environment-friendly adobe after the moulding to autoclave again and carry out vapor cure, the heating 2.5 hours that heats up was earlier spent constant temperature 5 hours 100 again; Naturally lowered the temperature 2 hours then, process building waste residue autoclaved lightweight environmental protection brick product.The average compressive strength testing: 11.8Mpa, bending strength: 3Mpa, for qualified products.
Claims (4)
1. autoclaved lightweight environmental protection brick of producing with building waste residue is characterized in that it is processed by the following weight proportion raw material:
Described building waste residue powder is the cullet that produces in the discarded concrete waste material that produces in the municipal construction process of construction, the fitting-up process, useless porcelain, useless marble, useless grouan, reconstruction of the old city town the remove useless brick and tile that produce and the blended solid waste of old wall waste residue; Behind fragmentation, sorting, magnetic separation removal scrap metal, after drying, rolling sorting, process particle diameter again and be powder less than 3mm;
Described cinder powder is the waste residue of discharging behind the domestic garbage burning electricity generation, is the powder less than 3mm through processing particle diameter behind sorting, pulverizing, the magnetic separation removal scrap metal;
Described smelting stainless steel waste residue powder; Be flue dust, oxide compound, slag former, desulfurization product, the furnace lining material of smelting stainless steel process discharge and the waste residue blended solid waste that discharges at hot rolling, cold rolling operation stainless steel; Behind fragmentation, sorting, pulverizing, magnetic separation, removal scrap metal, after deodorizing, sterilization, huge legendary turtle are closed processing, process its particle diameter and be powder less than 3mm.
2. a kind of autoclaved lightweight environmental protection brick of producing with building waste residue according to claim 1 is characterized in that the powder particle diameter of its described quicklime and calcium sulfate is-0.2mm.
3. the method for manufacture of a kind of autoclaved lightweight environmental protection brick of producing with building waste residue according to claim 1 is characterized in that it is undertaken by following step:
(a) with the building waste residue powder of 40～60 weight parts; The cinder powder of 20～30 weight parts; The smelting stainless steel waste residue powder of 20～30 weight parts; The silicate cement of 15～20 weight parts; The quicklime powder of 8～13 weight parts; The calcium sulfate powder of 3～6 weight parts; 0.5 the sodium-chlor of～1 weight part; 0.005 the colophonium pyrolytic polymer of～0.02 weight part; 0.2 the calcium sulphonate of～0.3 weight part; 0.02 the sodium sulfate of～0.05 weight part; 0.03 the water of the sodium aluminate of～0.06 weight part and 13～23 weight parts is raw material to add double-shaft mixing agitator and stirs and use the mechanical vibration extrusion molding after being moist shape; Under the pressure of 25～30MPa, manufacture building waste residue autoclaved lightweight environmental protection adobe
(b) send the building waste residue light-weight environment-friendly adobe after the moulding to autoclave again and carry out vapor cure, the heating 2～3 hours that heats up was earlier spent constant temperature 5～8 hours 95～100 again, lowered the temperature 1～2 hour naturally then, processed building waste residue autoclaved lightweight environmental protection brick product.
4. the method for manufacture of a kind of autoclaved lightweight environmental protection brick of producing with building waste residue according to claim 3 is characterized in that the powder particle diameter of its described quicklime and calcium sulfate is-0.2mm.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102795815B (en) * | 2012-06-30 | 2013-12-11 | 安徽中龙建材科技有限公司 | Cullet-doped aerated block production method |
| CN104072039B (en) * | 2014-05-29 | 2015-12-30 | 安徽华塑股份有限公司 | A kind of concrete waste material concrete and preparation method thereof |
| CN107760275B (en) * | 2017-11-14 | 2020-10-23 | 中国矿业大学 | Low-melting-point high-temperature phase change material prepared from glass and preparation method thereof |
| CN112723830A (en) * | 2021-01-06 | 2021-04-30 | 蔡琳洁 | Manufacturing process of building anti-seismic building concrete block |
| CN113336481A (en) * | 2021-04-26 | 2021-09-03 | 华厦筑工(广东)科技有限公司 | Light environment-friendly brick manufactured by using construction waste and manufacturing method thereof |
| CN115028427A (en) * | 2022-06-28 | 2022-09-09 | 扬州轩之和新型建材科技有限公司 | Light environment-friendly brick and manufacturing method thereof |
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| CN1226528A (en) * | 1998-12-21 | 1999-08-25 | 李桓宇 | Lightweight non-sintered bricks made from coal cinders |
| CN1513795A (en) * | 2003-08-22 | 2004-07-21 | 李桓宇 | Dirty sludge construction garbage light sinter free brick |
| CN1613812A (en) * | 2004-10-26 | 2005-05-11 | 李桓宇 | Non-fired bricks produced from combusting ash of urban refuse |
| CN1636918A (en) * | 2004-12-15 | 2005-07-13 | 李桓宇 | Production process of steam cured light cinder brick |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226528A (en) * | 1998-12-21 | 1999-08-25 | 李桓宇 | Lightweight non-sintered bricks made from coal cinders |
| CN1513795A (en) * | 2003-08-22 | 2004-07-21 | 李桓宇 | Dirty sludge construction garbage light sinter free brick |
| CN1613812A (en) * | 2004-10-26 | 2005-05-11 | 李桓宇 | Non-fired bricks produced from combusting ash of urban refuse |
| CN1636918A (en) * | 2004-12-15 | 2005-07-13 | 李桓宇 | Production process of steam cured light cinder brick |
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Effective date of registration: 20140213 Address after: 511533 Guangdong province Qingyuan City Yuan Tan Zhen Dong Keng Cun Patentee after: Qingyuan Lyuyou Environmental Protection Technology Co., Ltd. Address before: Nansha District Hengli Town, Guangzhou city of Guangdong province 511466 Hexing Road No. 56 Patentee before: Guangzhou Luyou Industrial Waste Recycling Co., Ltd. |