CN100389089C - Method for producing building insulated block utilizing sludge - Google Patents
Method for producing building insulated block utilizing sludge Download PDFInfo
- Publication number
- CN100389089C CN100389089C CNB2005100439221A CN200510043922A CN100389089C CN 100389089 C CN100389089 C CN 100389089C CN B2005100439221 A CNB2005100439221 A CN B2005100439221A CN 200510043922 A CN200510043922 A CN 200510043922A CN 100389089 C CN100389089 C CN 100389089C
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- China
- Prior art keywords
- mud
- sludge
- high temperature
- heat preservation
- loess
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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
Abstract
This invention provides a technological flow for utilizing industrial sludge, mixed sludge of industry and life to mix them with coal fly-ash dregs and loess to produce construction blocks, which does not need to dehydrate the sludge and utilizes the inner holes of said materials formed in sintering to process them into blocks with heat preservation performance and takes 40-60% non-dehydrated fresh sludge, 15-20% coal ash dregs and 20-40% loess as the raw materials to mix them directly with a force mixing device to make the base mud, then extrudes them to molding with a molding machine according to the needs of blocks then to be dried for a period of time artificially and naturally to be sintered at high temperature to construction blocks.
Description
Technical field
The present invention be a kind of industrial sludge, industry and life mixing sludge of utilizing as main raw material, the method for the small-sized insulation blocks of production building trade use.
Background technology
Along with the raising of consumption standard of living and public's environmental consciousness, a large amount of mud that industry and sanitary sewage are produced after preliminary treatment have become the environmental problem that present urgent need solves.
Because contain objectionable impuritiess such as a large amount of organism, heavy metal in the mud, this type of enriched material is even more serious for second environmental pollution, and under physical environment, be difficult to decompose and absorb.If only carry out the mode that high temperature drying is burned landfill again, not only processing cost is higher but also treatment capacity is limited, obviously is not suitable for the populous national conditions of China.Thereby, have at present and utilize mud to produce the improved technology of reprocessing.
As the patent formerly of following content disclosed, the patent No. is 98118046, name is called the method for utilizing the sludge heat energy baking light bricks, its scheme is that sludge dewatering to the water content that will separate from belt filter press is 50-60%, and make the granule that particle diameter is 3-9mm, then with the ratio of 10-30%, dried granule sneaked into equably make adobe in the brick clay raw material again, natural air drying is fired into brick by the roasting requirement at last.
The above-mentioned method of utilizing the sludge heat energy baking light bricks, the difficulty on actual industrial production is very big.One of reason is, is to control environment to worsen and realize Sustainable development, and China has forbidden producing, using clay brick at present, and aforesaid method is to be main brick-making raw material with clay, thereby has become a kind of infeasible scheme at present.
Former therefore two is that needing sludge dewatering to water content in the aforesaid method be 50-60%.In fact, sludge drying is a technical barrier maximum in the current decontamination process.Equipment and place that the drying and other treatment need are special are invested excessive and working cost is higher, and this all directly has influence on the cost of producing material of construction.
Summary of the invention
The method of utilizing mud to produce building heat preservation blocks of the present invention, its purpose is to address the above problem with deficiency provides a kind of industrial sludge, industry and life mixing sludge of utilizing, and remix powdered coal cinder and loess carry out the technical process of production building block.Need not in this method mud is carried out processed and all material is industry and domestic refuse, and utilize the internal void that above-mentioned materials forms and be processed into building block in sintering process with heat-insulating property.
The described method of utilizing mud to produce building heat preservation blocks, its main raw material are mud (comprising industry or industry and life mixing sludge) and powdered coal cinder and loess (or decayed rack).
Except that mud, powdered coal cinder is the waste residue that forms behind the large coal-fired boiler sintering.Existing common processing mode is a landfill, but bigger for the occupancy volume in soil, seeks new solution route thing and must go.
Loess or decayed rack can be gathered materials on the spot.Along with developing rapidly of China's city large-scale redevelopment and real estate industry, a large amount of loess or decayed rack that excavation project is left over, itself also need look for terms of settlement in addition, otherwise also can bring environmental problem.
As mentioned above, employed main raw material is industry or domestic refuse in the described method, does not violate existing laws and regulations and can not cause any detrimentally affect to environment.
The described method of utilizing mud to produce building heat preservation blocks, be by weight percentage, will be without the mud 40%-60% of processed, powdered coal cinder 15%-20%, loess 20%-40% directly use as raw material and force whipping device evenly to make base mud after the stirring;
Then, use the shaper extrusion molding;
At last, become building block through carrying out high temperature sintering after artificial or the seasoning;
Wherein, described mud is industrial sludge or industry and life mixing sludge.
As stated above, the most above-mentioned raw material that is mixed with mud is processed into the building block product.
Be the further quality that improves the production building block, the base mud after the extrusion molding, it is controlled at below 20% through dried water content, carries out high temperature sintering again.
And, carry out the clean temperature of high temperature burning and also should be controlled at 800 ℃-1100 ℃.
As mentioned above, powdered coal cinder that uses in the described method and loess material footpath itself is less, elder generation's drying can be in a large amount of pore and the gaps of the inner formation of building block product after carrying out high temperature sintering again, for the building block that constitutes the building maintenance material, its pore and gap can form multiple tracks insulation interbed.
The method of utilizing mud to produce building heat preservation blocks of the present invention, its advantage is:
1, the raw material that adopted of production building block is industry or domestic refuse, has not only reduced cost effectively, but also can play the purpose of protection environment.
2, the process program that provides in the aforesaid method is not violated the present law rules, has stronger feasibility.
What 3, provide existing industrial flyash slag and building loess utilizes approach again, and market popularization value is big.
4, the building block of being produced has heat-insulating property, can be used for the construction wall construction, effectively save energy.
Embodiment
Embodiment 1, the described method of utilizing mud to produce building heat preservation blocks, and its technical process is:
Proportioning raw materials by weight percentage, is prepared fresh sludge 40%, powdered coal cinder 20%, loess 40%;
Batching stirs, and above-mentioned raw materials is directly used force whipping device evenly to make base mud after the stirring;
The pre-treatment moulding with the true form structure of above-mentioned base mud by the processing building block, is used the shaper extrusion molding;
Drying treatment, through after seasoning for some time, the water content in base mud is below 20%;
Go into the kiln roasting, under 1000 ℃ high temperature, sinter dried one-tenth parison mud into the building block product.
The specification of above-mentioned building block product can be processed into 240mm * 240mm * 115mm, 240mm * 180mm * 115mm and 240mm * 115mm * models such as 115mm.
The building block of being produced, its thermal conductivity is less than 0.3W/m
2K, intensity can reach 0.2-4.0Mpa, and unit weight can reach 850-1000kg/m
3
In addition, according to GB GB6566-2001 inspecting standard, the equal coincidence detection standard-required of its internal radiation index, external radiation exposure index and ultimate compression strength index.
Embodiment 2, the described method of utilizing mud to produce building heat preservation blocks, and its technical process is:
Proportioning raw materials by weight percentage, is prepared fresh sludge 35%, powdered coal cinder 20%, loess 45%;
Batching stirs, and above-mentioned raw materials is directly used force whipping device evenly to make base mud after the stirring;
The pre-treatment moulding with the true form structure of above-mentioned base mud by the processing building block, is used the shaper extrusion molding;
Drying treatment, through after seasoning for some time, the water content in base mud is below 15%;
Go into the kiln roasting, under 1100 ℃ high temperature, sinter dried one-tenth parison mud into the building block product.
Claims (3)
1. method of utilizing mud to produce building heat preservation blocks, it is characterized in that: by weight percentage, will be without the mud 40%-60% of processed, powdered coal cinder 15%-20%, loess 20%-40% directly use as raw material and force whipping device evenly to make base mud after the stirring;
Then, use the shaper extrusion molding;
At last, after artificial or seasoning for some time, carry out high temperature sintering and become building block;
Wherein, described mud is industrial sludge or industry and life mixing sludge.
2. the method for utilizing mud to produce building heat preservation blocks according to claim 1 is characterized in that: the base mud after the extrusion molding, it is controlled at below 20% through dried water content, carries out high temperature sintering again.
3. the method for utilizing mud to produce building heat preservation blocks according to claim 2, it is characterized in that: the temperature of carrying out high temperature sintering is controlled at 800 ℃-1100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100439221A CN100389089C (en) | 2005-06-30 | 2005-06-30 | Method for producing building insulated block utilizing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100439221A CN100389089C (en) | 2005-06-30 | 2005-06-30 | Method for producing building insulated block utilizing sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1891656A CN1891656A (en) | 2007-01-10 |
| CN100389089C true CN100389089C (en) | 2008-05-21 |
Family
ID=37596889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100439221A Expired - Fee Related CN100389089C (en) | 2005-06-30 | 2005-06-30 | Method for producing building insulated block utilizing sludge |
Country Status (1)
| Country | Link |
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| CN (1) | CN100389089C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070321B (en) * | 2009-11-24 | 2012-07-04 | 广州绿由工业弃置废物回收处理有限公司 | Sintered light environmentally-friendly brick produced from ceramic waste residues and silt and manufacturing method thereof |
| CN101805169A (en) * | 2010-04-22 | 2010-08-18 | 北京四方如钢混凝土制品有限公司 | Sludge treatment method and sintered sludge ceramsites produced by same |
| CN101913842B (en) * | 2010-07-23 | 2012-07-11 | 广州绿由工业弃置废物回收处理有限公司 | Baked light-weight environmental-friendly bricks prepared from paper mill sludge and manufacturing method thereof |
| CN102924051B (en) * | 2012-11-22 | 2013-12-11 | 盱眙县东强新型建材厂 | Attapulgite shale river-bottom sludge sintering thermal-insulation building block |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147997A (en) * | 1996-08-27 | 1997-04-23 | 吴炳佩 | Technology for mixing raw material of light wt. bricks |
| CN1217239A (en) * | 1998-08-07 | 1999-05-26 | 浙江大学 | Method for baking light bricks using sludge heat energy |
| CN1305973A (en) * | 2001-01-12 | 2001-08-01 | 曹风均 | Light bricks and preparing process thereof |
| CN1440946A (en) * | 2003-03-03 | 2003-09-10 | 威海华元节能建筑材料有限公司 | Light heat-insulating sintered block and its prepn |
-
2005
- 2005-06-30 CN CNB2005100439221A patent/CN100389089C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147997A (en) * | 1996-08-27 | 1997-04-23 | 吴炳佩 | Technology for mixing raw material of light wt. bricks |
| CN1217239A (en) * | 1998-08-07 | 1999-05-26 | 浙江大学 | Method for baking light bricks using sludge heat energy |
| CN1305973A (en) * | 2001-01-12 | 2001-08-01 | 曹风均 | Light bricks and preparing process thereof |
| CN1440946A (en) * | 2003-03-03 | 2003-09-10 | 威海华元节能建筑材料有限公司 | Light heat-insulating sintered block and its prepn |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1891656A (en) | 2007-01-10 |
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Granted publication date: 20080521 Termination date: 20170630 |