CN101935199B - Method for baking self-insulating & energy-saving bricks by using domestic sludge and river & lake sludge as raw materials - Google Patents
Method for baking self-insulating & energy-saving bricks by using domestic sludge and river & lake sludge as raw materials Download PDFInfo
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- CN101935199B CN101935199B CN2010102871422A CN201010287142A CN101935199B CN 101935199 B CN101935199 B CN 101935199B CN 2010102871422 A CN2010102871422 A CN 2010102871422A CN 201010287142 A CN201010287142 A CN 201010287142A CN 101935199 B CN101935199 B CN 101935199B
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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
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- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention relates to the technical field of manufacturing building wall bricks, in particular to a method for preparing self-insulating & energy-saving bricks by using domestic sludge and river & lake sludge, and the like as raw materials. By using the method, a good deal of sludge, silt and other wastes can be digested, and more other effective resources are not consumed. The method comprises the following steps: 1) piling up the domestic sludge (moisture content: about 85 percent) in the open until the moisture content of the domestic sludge is 50 to 60 percent for later use; 2) mixing domestic sludge (weight percent: 70 to 80 percent; moisture content: 50 to 60 percent), quick lime (weight percent: 2 to 5 percent), gypsum (weight percent: 2 to 5 percent) and foundry waste sand (weight percent: 15 to 20 percent), then piling up the obtained mixture until the moisture content of the mixture is about 35 percent; 3) mixing the mixture (weight percent: 45 to 55 percent) obtained in step 2, the river & lake sludge dried by airing (weight percent: 30 to 40 percent; moisture content: about 10 percent) and slag (weight percent: 5 to 25 percent), then placing the obtained mixture by way of ageing until the moisture content of the obtained mixture is about 20 percent so as to obtain blank materials; and 4) carrying out blank manufacturing and baking the blank materials so as to obtain finished bricks.
Description
Technical field
The present invention relates to the manufacturing technology field of construction wall brick, especially a kind of the multiple discharge domestic sludge in city, river and lake mud etc. are applied to the method in the self-heat-preservation energy-saving brick preparation as raw material.
Background technology
At present; Environment protection has become the problem of national governments' growing interest; In China; Along with the further quickening of urbanization process and the stable development of urban industry, in the city citizen life more and more with the formed waste of enterprise production, how to handle the serious problems that the mud of cast waste sand that domestic sludge, the printing and dyeing sludge after the treatment of dyeing wastewater, foundry enterprise after the sanitary sewage disposal form, river and lake desilting formation has become a lot of cities to face; Prior art has been to also having proposed some solutions like domestic sludge, river and lake mud, as:
One, the one Chinese patent application of open day on March 26th, 2008, publication number CN101148071 " utilizing municipal sludge and wet-discharged coal ash to produce the method for light-high-strength vitrified brick "; This patent document discloses the method that a kind of flyash that uses the municipal sludge of nearly half amount and surpass half amount adds a spot of pore-forming material mixing base vitrified brick of fluxing; This method brickmaking will be used a large amount of flyash; And flyash is very extensive by the purposes of utilizing again; As make pulverized fuel ash cement, coal ash concrete blocks etc., and also having become to spend the resource of certain buying expenses at a lot of local flyash, the sludge quantity handled of this method is less in addition; Like this, this brick-making method is just not ideal enough in the city result of use that much presses for the various a large amount of mud of solution.
Two, the one Chinese patent application of open day on August 6th, 2008, publication number CN101234886 " method of single stage method comprehensive utilization rubbish sintering micro-pore ecological brick "; This patent document discloses domestic refuse or the mud that uses 20-60 part; The building waste of 10-20 part, the flyash of 10-20 part, the excavation spoir or the coal gangue of 20-40 part; Though the quantity of refuse that this method is used is bigger; But fresh domestic refuse complicated component will inevitably influence the quality of brick, from several kinds of materials that utilized; Can not obtain picture its said in light weight, intensity is high, the ecological brick of sound insulation, heat insulation, National standard that radioactivity is low, and building waste excavation spoir need not be made brick and also finds other filling purposes easily.
Three, the one Chinese patent application of open day on September 17th, 2008, publication number CN101265077 " producing the technology of energy-saving clinker brick with mud "; This patent document discloses operating weight than the siliceous sticker clay of the mud of 10-50% and 50-90% or wilkinite etc.; Its weak point also is that institute is can used up municipal sludge more limited, but and has consumed more other efficient resource in order to digest municipal sludge.
The subject matter that several kinds of above-mentioned schemes exist has: the one, and mud and the amount of sludge handled also are not a lot; The 2nd, do not consider other some the common solid waste that need handle really in the city are handled.
Summary of the invention
The technical problem that the present invention will solve is: overcome the deficiency in the prior art, provide a kind of can digestion a large amount of mud, mud and other waste, do not consume the method for cooking of the self-heat-preservation energy-saving brick of more other efficient resources again.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick has following technological process:
One, stack to water ratio 50-60% the domestic sludge of water ratio 85% for use naturally;
Two, with the cast waste sand of the gypsum of the unslaked lime of the domestic sludge of the described water ratio 50-60% of weight percent 70-80%, 2-5%, 2-5% and 15-20% through stirring and stacking to water ratio 35%;
Three, with the slag of the river and lake mud of the air dried water ratio 10% of the step 2 gained mixture of weight percent 45-55%, 30-40% and 5-25% again through stirring, ageing is placed to water ratio 20%, obtains the base material;
Four, base through 1150～1200 ℃ cure, obtains finished bricks.
The present invention can produce micropore when utilizing the domestic sludge burning; The staple of mud and low-calorie coal facies are worked as; Eliminate the toxic substance in the mud through 1150-1200 ℃ of high-temperature roasting, be prepared into the good self-heat-preservation energy-saving brick that country requires energy-saving insulating brick that meets.The employed starting material of brickmaking are partly carried out twice stirring and twice placement in batches; Whole technological process can better be controlled the blank water ratio, helps guaranteeing that the supply of the wet blank of qualified water ratio, the automated plant that helps continuous base produce energy-conservation brick.Use cast waste sand to utilize its water-absorbent before wherein stirring for the first time; To throw in be to prevent that its shelf-time long causing from going rotten and influence the pore-creating effect of fluxing again stirring for the second time when using wood chip with rice husk.
In order to consume other waste of city or surrounding city; Add also in the described step 3 that the pore-forming material of fluxing that weight ratio 3-8% is arranged stirs together and step 3 in institute's weight percent sum of adding each component be 100%, the described pore-forming material of fluxing be in wood chip, rice husk and the flyash one or more mixture, when use is two or more every kind weight such as can be or not wait weight.
In order to make brickmaking not receive weather effect, accomplish continuous production, guarantee that blank can be without interruption, mixture after being mixed is stacked to rainproof ageing field and is carried out ageing in the described step 3.
In order to reduce energy consumption, the process that base cures in the described step 4 is: process wet base with the base material earlier, the base that will wet is again piled up on drying cart, is parked in kiln forced drying to adobe water ratio 5-10%, gets into annular kiln at last and cures.
In order effectively to consume power plant or welding electrode factory depleted desulfurated plaster, employed gypsum also can be a desulfurated plaster in the described step 2.
The invention has the beneficial effects as follows:
The social benefit aspect; The present invention has utilized the cast waste sand that need handle in the general city, the slag that burning in boiler goes out; Can also use the wood chip of wood furniture factory and the rice husk in rural area, city suburbs; Combine to fire vitrified brick with the mud of municipal sewage plant and the river and lake mud of city and surrounding city; The unslaked lime of the sterilization functions that passes through to be thrown in, the gypsum of adhesive effect can also have the pore-creating effect of fluxing of wood chip, rice husk, flyash, have not only handled a large amount of mud, mud and urban waste but also have processed the energy-conservation brick of National standard; This brick-making method is particularly useful for being arranged in the brickmaking enterprise utilization of surrounding city, has solved the problem of city part pollutent; And need not consume land resources; Also having utilized mud granule is this characteristic of ideal auxiliary fuel, has practiced thrift the coal consumption more than 95% during brickmaking again, and as long as former 10,000 common bricks of firing of applicant will be used 0.45 ton of mark coal, fire 10,000 energy-conservation bricks with this method 0.01 ton of mark coal at present.
The economic benefit aspect; Like the applicant is exactly the brickmaking enterprise of a family near the city; Use this brick-making method, the brick of not only producing brings sales revenue, and the municipal sludge that falls of digestion etc. can also obtain the fund subsidy of sewage work and municipal aspect.
Embodiment
Enumerate the concrete implementation method of several the present invention below.
Embodiment one:
A kind of method of utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick has following technological process:
One, stack to water ratio 50% domestic sludge of water ratio about 85% for use naturally; Different according to weather, pilling up time is generally at 10 to 20 days.
Two, with the cast waste sand of the domestic sludge of weight percent 70% described water ratio 50%, 5% unslaked lime, 5% gypsum and 20% through stirring and stacking to water ratio about 35%;
Three, with the slag of the river and lake mud of the step 2 gained mixture of weight percent 45%, 30% air dried water ratio about 10% and 25% again through stirring; Ageing is placed to water ratio about 20%; Obtain the base material, ageing storage period according to the unusual meeting of weather at 48 to 72 hours;
Four, base cures, and obtains finished bricks.
Embodiment two:
A kind of method of utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick has following technological process:
One, stack to water ratio 60% domestic sludge of water ratio about 85% for use naturally; Different according to weather, pilling up time is generally at 10 to 20 days.
Two, with the cast waste sand of the domestic sludge of weight percent 75% described water ratio 60%, 2% unslaked lime, 2% desulfurated plaster and 16% through stirring and stacking to water ratio about 35%;
Three, with the wood chip powdered rice hulls coal ash mixture of the river and lake mud of the step 2 gained mixture of weight percent 50%, 40% air dried water ratio about 10%, 5% slag and 5% again through stirring; Ageing is placed to water ratio about 20%; Obtain the base material; Wood chip in the wood chip powdered rice hulls coal ash mixture, rice husk and flyash three's weight does not wait, and employed ageing field is rainproof ageing field; Ageing storage period according to the unusual meeting of weather at 48 to 72 hours;
Four, process wet base with the base material earlier, the base that will wet is again piled up on drying cart, is parked in kiln forced drying to adobe water ratio 5%, gets into annular kiln at last and cures, and obtains finished bricks.
Embodiment three:
A kind of method of utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick has following technological process:
One, stack to water ratio 55% domestic sludge of water ratio about 85% for use naturally; Different according to weather, pilling up time is generally at 10 to 20 days.
Two, with the cast waste sand of the domestic sludge of weight percent 80% described water ratio 55%, 2% unslaked lime, 3% desulfurated plaster and 15% through stirring and stacking to water ratio about 35%;
Three, with the wood chip powdered rice hulls coal ash mixture of the river and lake mud of the step 2 gained mixture of weight percent 55%, 35% air dried water ratio about 10%, 7% slag and 3% again through stirring; Ageing is placed to water ratio about 20%; Obtain the base material; Wood chip in the wood chip powdered rice hulls coal ash mixture, rice husk and flyash three are equal in weight, and employed ageing field is rainproof ageing field; Ageing storage period according to the unusual meeting of weather at 48 to 72 hours;
Four, process wet base with the base material earlier, the base that will wet is again piled up on drying cart, is parked in kiln forced drying to adobe water ratio 10%, gets into annular kiln at last and cures, and obtains finished bricks.
Claims (5)
1. method of utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick is characterized in that having following technological process:
One, stack to water ratio 50-60% the domestic sludge of water ratio 85% for use naturally;
Two, with the cast waste sand of the gypsum of the unslaked lime of the domestic sludge of the described water ratio 50-60% of weight percent 70-80%, 2-5%, 2-5% and 15-20% through stirring and stacking to water ratio 35%;
Three, with the slag of the river and lake mud of the air dried water ratio 10% of the step 2 gained mixture of weight percent 45-55%, 30-40% and 5-25% again through stirring, ageing is placed to water ratio 20%, obtains the base material;
Four, base through 1150～1200 ℃ cure, obtains finished bricks.
2. the method for utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick according to claim 1; It is characterized in that in the described step 3 also adding the pore-forming material of fluxing that weight ratio 3-8% is arranged stirs together and step 3 in add each component the weight percent sum be 100%, the described pore-forming material of fluxing is one or more the mixture in wood chip, rice husk and the flyash.
3. the method for utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick according to claim 1 is characterized in that the mixture after being mixed stacking is carried out ageing to rainproof ageing field in the described step 3.
4. the method for utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick according to claim 1; It is characterized in that the process that base cures in the described step 4 is: process wet base with the base material earlier; The base that will wet is again piled up on drying cart; Be parked in kiln forced drying to adobe water ratio 5-10%, get into annular kiln at last and cure.
5. the method for utilizing domestic sludge, river and lake mud to fire the self-heat-preservation energy-saving brick according to claim 1 is characterized in that employed gypsum is a desulfurated plaster in the described step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102871422A CN101935199B (en) | 2010-09-20 | 2010-09-20 | Method for baking self-insulating & energy-saving bricks by using domestic sludge and river & lake sludge as raw materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102871422A CN101935199B (en) | 2010-09-20 | 2010-09-20 | Method for baking self-insulating & energy-saving bricks by using domestic sludge and river & lake sludge as raw materials |
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| Publication Number | Publication Date |
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| CN101935199A CN101935199A (en) | 2011-01-05 |
| CN101935199B true CN101935199B (en) | 2012-07-25 |
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| CN2010102871422A Expired - Fee Related CN101935199B (en) | 2010-09-20 | 2010-09-20 | Method for baking self-insulating & energy-saving bricks by using domestic sludge and river & lake sludge as raw materials |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503517B (en) * | 2011-11-11 | 2013-07-03 | 上海鑫晶山建材开发有限公司 | Phosphogypsum sintered brick and production process thereof |
| CN103193504A (en) * | 2013-03-10 | 2013-07-10 | 海拉建材科技大丰有限公司 | Processing technology of water treatment sludge self-insulation brick |
| CN103321185A (en) * | 2013-05-31 | 2013-09-25 | 南京信息工程大学 | Ecological impermeable cement canal |
| CN104355590A (en) * | 2014-10-13 | 2015-02-18 | 合肥庭索环保材料有限公司 | Method for firing paving brick by municipal sludge |
| CN105330250A (en) * | 2015-10-29 | 2016-02-17 | 合肥正拓装饰材料有限公司 | High-strength energy-saving water-permeable ground tile with dredged mud added |
| CN106064923B (en) * | 2016-05-26 | 2018-07-17 | 湖州德海新型建材有限公司 | A kind of method that printing and dyeing sludge prepares air-entrained concrete building block |
| CN107522470A (en) * | 2017-10-11 | 2017-12-29 | 江苏腾业新型材料有限公司 | A kind of method that fired brick is prepared using sludge and cast waste sand |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265077A (en) * | 2008-04-19 | 2008-09-17 | 西安墙体材料研究设计院 | Technique for producing energy-saving sintering brick by silt |
| CN101830613A (en) * | 2010-06-18 | 2010-09-15 | 李玉光 | Method for manufacturing autoclaved sand-lime brick or flyash brick as well as fertilizer and grease by sludge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61497A (en) * | 1984-04-28 | 1986-01-06 | Nippon Jiryoku Senko Kk | Utilization of high basicity steel making slug |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101265077A (en) * | 2008-04-19 | 2008-09-17 | 西安墙体材料研究设计院 | Technique for producing energy-saving sintering brick by silt |
| CN101830613A (en) * | 2010-06-18 | 2010-09-15 | 李玉光 | Method for manufacturing autoclaved sand-lime brick or flyash brick as well as fertilizer and grease by sludge |
Non-Patent Citations (3)
| Title |
|---|
| Jiakuan Yang et al..Development of unsintered construction materials from red mud wastes produced in the sintering alumina process.《Construction and Building Materials》.2008,第22卷第2299-2307页. * |
| JP昭61-497A 1986.01.06 |
| 周炫 等.污泥制砖发展浅谈.《砖瓦》.2008,(第9期),第5-10页. * |
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