CN101717235B - Baked brick prepared from desulphurization gypsum, waste mud, construction waste and other solid wastes as raw materials - Google Patents
Baked brick prepared from desulphurization gypsum, waste mud, construction waste and other solid wastes as raw materials Download PDFInfo
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- CN101717235B CN101717235B CN200910250755A CN200910250755A CN101717235B CN 101717235 B CN101717235 B CN 101717235B CN 200910250755 A CN200910250755 A CN 200910250755A CN 200910250755 A CN200910250755 A CN 200910250755A CN 101717235 B CN101717235 B CN 101717235B
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- waste
- mud
- brick
- solid
- desulfurated plaster
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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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- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a baked brick prepared by sintering crushed construction waste, mud cakes by pressing waste mud, desulphurization gypsum and coal cinder in a leather factory as aggregates and admixture with a certain ratio. Compared with common baked bricks, the invention reduces the production cost while meeting the compressive strength. In the solid waste brick formula, all raw materials are selected from construction and industrial wastes, so that the invention solves the difficult problem of processing construction waste mud and construction waste and the problem of environment pollution caused by the desulphurization gypsum and other solid wastes, protects cultivated land resources, and realizes the recycling of the solid wastes.
Description
Technical field
The present invention relates to a kind of solid waste baked brick making method, be specifically related to a kind of mud cake, building waste, tannery's cinder making formula of sintered brick that is applicable to after desulfurated plaster, waste mud squeeze, belong to civil construction material technology field.
Background technology
There is a large amount of SO every day in general coal-burning power plant manufacturing enterprise
2Be discharged in the atmosphere through the flue gas flue, caused the serious environmental pollution.Bring a series of Litter governing problem to enterprise, obtain so-called desulfurated plaster through discharged flue gas being carried out the desulfurization processing.At present still do not have the report that carries out vitrified brick through desulfurated plaster, though the report of ardealite baked brick is arranged, yet in the sintering process that is adopted still with clay as main raw material(s).Utilizing clay to carry out vitrified brick will cut the earth and ruin the field, the land resources of consume valuable, the havoc eubiosis.For many years, the order of forbidding producing and using solid clay brick in national part city is repeatedly assigned about ministries and commissions by country.Therefore, the alternative brick producing material of searching clay has great importance.
The a large amount of waste muds that produce in the geotechnical engineering construction mainly are made up of clay, sewage, drilling cuttings and mud conditioner etc.The discharging of the unrest of waste mud has in the past caused the pollution of a large amount of urban rivers, and the river course becomes silted up stifled.In recent years, through the stringent regulations of various places government department, this situation is alleviated to some extent, has also promoted the development of mud Technology in Pressing, yet receives the influence of transportation cost, and the treatment of mud cost can be in any more always, has caused the tremendous economic burden to construction enterprises.At present, the main method of disposal of the mud squeezing formed mud cake in back has: the one, fertilize the soil nearby; The 2nd, outward transport backfill low-lying field; The 3rd, brickmaking.From the angle analysis of industrial chain, utilize the mud cake brickmaking after mud squeezes both can solve problem of environmental pollution that mud causes, reduce transportation cost, can solve brickmaking enterprise production and the contradiction of protecting farmland again, be effective measure of achieving many things at one stroke.
On the other hand, along with the China's economic fast development, the construction project in city, rural area is increasing, in these project constructions, stays a large amount of building wastes.The landfill disposal of building waste has taken a large amount of soils and fund.Therefore, carry out the comprehensive utilization of resources of building waste, have great economical, societal benefits.
Adopt the desulfurated plaster vitrified brick generally need adopt fuel, the effect of on producing, bringing is to reduce fuel consumption, shortens roasting time, and shortcoming is if the fuel volume is excessive, can cause the fragment of brick core many, and the space is big, and ultimate compression strength reduces.The optimum incorporation of fuel is relevant with the type of vitrified brick composition and fuel, need be optimized design.
Building waste, mud cake mud squeezing after and the flyash of the present invention with desulfurated plaster, after pulverizing adds a certain proportion of admixture and carries out sintering as aggregate, has obtained a kind of novel solid waste baked brick.Compare with the unselected clay vitrified brick, in the requirement of satisfying ultimate compression strength simultaneously, reduced production cost.This solid waste brick prescription; All raw materials all derive from building and industrial waste, have solved the processing difficult problem of building waste mud and building waste, have solved desulfurized gypsum and other solid problem of environmental pollution that waste causes; Protect cultivated land resource, realized the recycle of solid waste.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can be applied to the high-performance of actual production, cheap solid waste baked brick prescription.This formula of sintered brick is a raw material with solid waste such as desulfurated plaster, waste mud, building waste, flyash, solves problem of environmental pollution that solid waste causes, and has protected cultivated land resource, has realized the recycle of solid waste.
Formula of sintered brick of the present invention, wherein the building waste mass ratio is 14.15%, mud cake quality is than 56.60%, desulfurated plaster mass ratio 14.15%, flyash mass ratio 9.43%, toughener mass ratio 5.66%.
Formula of sintered brick of the present invention, the mud cake that is adopted are mainly derived from the waste mud that bored pile construction produces, and mainly are made up of compositions such as clay, sand, stones, and its medium clay soil composition accounts for more than 70% of solid composition.
Formula of sintered brick of the present invention; The mud cake that is adopted is mainly derived from the mud that produces in the bored pile construction; Wherein mud adopts the moulding of flocculation combine milling process, removes macrobead compositions such as shakeout, stone before the squeezing earlier, and the mud cake water cut after the squeezing is controlled at 35%.
Formula of sintered brick of the present invention, the building waste that is adopted mainly are made up of waste concrete, brickbat slag, mortar, and wherein the content of brickbat slag accounts for 20% of building waste.
Formula of sintered brick of the present invention, the building waste that is adopted is the diameter of milling through the ball mill powder less than 2mm.
Formula of sintered brick of the present invention, the desulfurated plaster major ingredient that is adopted is a terra alba, content is more than 75%.
Formula of sintered brick of the present invention is characterized in that: the flyash that is adopted is the power station dry discharge fly ash, SiO
2, the mass fraction of CaO is respectively 65.2,4.0%
Formula of sintered brick of the present invention, the admixture that is adopted are toughener, and major ingredient is Fe
2O
3
Beneficial effect of the present invention: this solid waste baked brick, simple for production, only need in proportion mud cake, building waste powder, flyash, toughener after desulfurated plaster, the mud squeezing to be stirred and get final product in advance.The intensity of vitrified brick can realize through the incorporation and the sintering temperature of regulating flyash and toughener.This formula of sintered brick is a raw material with building, industrial ubiquitous solid waste, compares with the unselected clay vitrified brick, when satisfying ultimate compression strength, has reduced production cost.A processing difficult problem of solved desulfurated plaster, building waste mud, building waste and flyash solves problem of environmental pollution that solid waste causes, and has protected cultivated land resource, has realized the recycle of solid waste.
Embodiment
Embodiment 1
Desulfurated plaster, mud cake, building waste powder, flyash and the toughener that will pass through design metering after forcing to stir, ageing 48 hours, subsequent use.Material after the ageing is processed adobe, wet adobe physical dimension: long 250mm, wide 120mm, high 92mm.After super-dry (heat that utilizes the roasting kiln flue to discharge), dry body brick physical dimension: long 242mm, wide 118mm, high 91mm, water cut is less than 7%.Send into wheel kiln baking, 800 ℃～1100 ℃ of control maturing temperatures can be made into solid waste baked brick.
Brick after processing carries out compressive strength test, and test-results is shown in table 1～4.
Each composition weight proportioning of process (admixture 2kg) is joined in the examination of table 1 solid waste baked brick
Each composition weight proportioning of process (admixture 4kg) is joined in the examination of table 2 solid waste baked brick
Each composition weight proportioning of process (admixture 6kg) is joined in the examination of table 3 solid waste baked brick
Each composition weight proportioning of process (admixture 8kg) is joined in the examination of table 4 solid waste baked brick
Table 5 light thermal-insulation vitrified brick component metering permissible variation
| Mud cake | Building waste | Desulfurated plaster | Solidifying agent |
| ±2％ | ±2％ | ±1％ | ±0.2％ |
Visible by above each embodiment, along with the increase of waste coal slag incorporation, the intensity of vitrified brick increases afterwards earlier and reduces.Along with the increase of admixture, the intensity of vitrified brick increases gradually.
Visible by above test-results, adopt mud cake: 60kg, building waste: 15kg, desulfurated plaster: 15kg, waste coal slag: 10kg, toughener: 6kg; And mud: 60kg, building waste: 15kg, desulfurated plaster: 15kg, waste coal slag: 8kg, toughener: 8kg; Brick strength behind sintering is respectively 10.39Mpa, and 10.25Mpa all reaches ordinary sinter clay brick Mu10 intensity; Consider the requirement of economy and utilization rate of solid waste; Finally select mud cake: 60kg for use, building waste: 15kg, desulfurated plaster: 15kg; Waste coal slag: 10kg, toughener: 6kg is as the optimization design prescription.The cost of above-mentioned vitrified brick is compared with common brick and is reduced more than 20%.
Claims (1)
1. the preparation method of a solid waste baked brick; It is characterized in that by the mud cake after the squeezing of desulfurated plaster, mud, building waste powder, flyash, toughener with weight ratio 15: 60: 15: sintering formed in 10: 6; Wherein the sulfate dihydrate calcium contents is greater than 75% in the desulfurated plaster, and mud cake is mainly derived from the waste mud that bored pile construction produces, and mainly is made up of clay, sand, stone; Its medium clay soil composition accounts for more than 70% of solid composition; Wherein mud adopts the moulding of flocculation combine milling process, removes shakeout, stone macrobead composition before the squeezing earlier, and the mud cake water cut after the squeezing is controlled at 35%; Building waste is the diameter of milling through the ball mill powder less than 2mm, and the toughener staple is Fe
2O
3Desulfurated plaster, mud cake, building waste powder, flyash and the toughener that will pass through design metering after forcing to stir, ageing 48 hours, subsequent use; Material after the ageing is processed adobe, wet adobe physical dimension: long 250mm, and wide 120mm, high 92mm, after the heat drying of utilizing the release of roasting kiln flue, dry body brick physical dimension: long 242mm, wide 118mm, high 91mm, water cut is less than 7%; Send into wheel kiln baking, 800 ℃～1100 ℃ of control maturing temperatures are processed solid waste baked brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250755A CN101717235B (en) | 2009-12-10 | 2009-12-10 | Baked brick prepared from desulphurization gypsum, waste mud, construction waste and other solid wastes as raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250755A CN101717235B (en) | 2009-12-10 | 2009-12-10 | Baked brick prepared from desulphurization gypsum, waste mud, construction waste and other solid wastes as raw materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101717235A CN101717235A (en) | 2010-06-02 |
| CN101717235B true CN101717235B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910250755A Expired - Fee Related CN101717235B (en) | 2009-12-10 | 2009-12-10 | Baked brick prepared from desulphurization gypsum, waste mud, construction waste and other solid wastes as raw materials |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107814555A (en) * | 2017-09-30 | 2018-03-20 | 望江县中山新型建材有限公司 | A kind of method that low damage rate fired brick is prepared using waste mud |
| CN107721352A (en) * | 2017-11-15 | 2018-02-23 | 潍坊友容实业有限公司 | Utilize unbaked tile made of desulfurized gesso of flue gas and its method |
| CN111187058A (en) * | 2020-01-07 | 2020-05-22 | 北京科技大学 | Method for preparing roadbed stone and co-producing sulfuric acid by coupling desulfurized and denitrated ash and fly ash |
| CN112110713A (en) * | 2020-09-23 | 2020-12-22 | 源海资源再生科技(云南)有限公司 | Method for manufacturing pavement bricks by using construction waste |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6204430B1 (en) * | 1998-02-18 | 2001-03-20 | Rocky Mountain Remediation Services Llc | Hexametaphosphate as an agent for treating wastes, preparing construction materials and stabilizing soils |
| CN1413936A (en) * | 2002-09-26 | 2003-04-30 | 上海中圣实业发展有限公司 | Brick made of mud |
| CN101407407A (en) * | 2007-10-10 | 2009-04-15 | 中国环境科学研究院 | Method for baking bricks from mixture of biological dewatered sludge and construction wastes |
-
2009
- 2009-12-10 CN CN200910250755A patent/CN101717235B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6204430B1 (en) * | 1998-02-18 | 2001-03-20 | Rocky Mountain Remediation Services Llc | Hexametaphosphate as an agent for treating wastes, preparing construction materials and stabilizing soils |
| CN1413936A (en) * | 2002-09-26 | 2003-04-30 | 上海中圣实业发展有限公司 | Brick made of mud |
| CN101407407A (en) * | 2007-10-10 | 2009-04-15 | 中国环境科学研究院 | Method for baking bricks from mixture of biological dewatered sludge and construction wastes |
Non-Patent Citations (1)
| Title |
|---|
| 陶有生.烧结砖与墙体材料革新.《砖瓦》.2007,(第2期),7-12. * |
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