CN103011768A - Method for firing paving brick by recycling municipal sludge - Google Patents
Method for firing paving brick by recycling municipal sludge Download PDFInfo
- Publication number
- CN103011768A CN103011768A CN2012105382588A CN201210538258A CN103011768A CN 103011768 A CN103011768 A CN 103011768A CN 2012105382588 A CN2012105382588 A CN 2012105382588A CN 201210538258 A CN201210538258 A CN 201210538258A CN 103011768 A CN103011768 A CN 103011768A
- Authority
- CN
- China
- Prior art keywords
- parts
- brick
- municipal sludge
- paving brick
- modified meerschaum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention discloses a method for firing a paving brick by recycling municipal sludge. In the method, raw materials for brick manufacturing comprise 50-60 parts of municipal sludge, 5-8 parts of straw coated particle, 4-6 parts of gypsum, 10-15 parts of silicate cement, 14-18 parts of fluorite slag, 5-8 parts of shale, 3-5 parts of modified meerschaum, 10-15 parts of volcanic rock, 15-25 parts of zeolite and 5-10 parts of cocoanut charcoal. The manufactured paving brick has the advantages of light weight, high strength, favorable water resistance, less deformation possibility, high safety, no pollution, environment friendliness, energy saving and the like. According to the invention, the method is simple and easy to operate, the raw materials are wide in sources, the cost is low, the energy is saved, and the casual discharge of municipal sludge is reduced, thereby achieving favorable social benefits and economic benefits.
Description
Technical field
The present invention relates to a kind of manufacture method of material of construction, be specifically related to the method that a kind of city sewage sludge reclamation is fired paving brick.
Background technology
Along with the quickening of Urbanization in China, treatment rate of domestic sewage improves year by year, and the number of municipal sewage plant and sludge yield also increase thereupon.At present, the sludge quantity (dry mass) of the annual discharging in China municipal sewage plant is about 1,300,000 t, and increases rapidly with the speed of annual growth 10%.The mud pollutent has long term toxicity and non-biodegradable, if let alone unordered discharging, will become dangerous secondary pollution source, enters food chain by media such as atmosphere, underground water, surface water and soil, and serious threat is to human health.Therefore, how properly to dispose municipal sludge, become the problem of domestic and international extensive concern.At present, be one of important channel of city sewage sludge reclamation with sludge incineration ash as the spike of vitrified brick, but because its production process energy consumption is excessive, required high cost is not promoted effectively in China so far.
Summary of the invention
The purpose of this invention is to provide a kind of method of utilizing municipal sludge to produce excellent property, energy-conserving and environment-protective, paving brick that cost is low.
A kind of city sewage sludge reclamation is fired the method for paving brick, may further comprise the steps:
(1) be that municipal sludge more than 80% adds and to be equivalent to the unslaked lime of mud weight 30-35%, the flyash of 10-15% with water ratio, mixing and stirring makes its water ratio≤60%, and ageing was deposited 7-10 days;
(2) municipal sludge with water ratio≤60% is sent in the agitator through conveying belt, add stalk coatedparticles, gypsum, silicate cement, fluorite slag, shale, modified meerschaum, volcanics, zeolite, coconut husk charcoal to agitator simultaneously, be stirred into the mixing pug under the 150-200r/min rotating speed, wherein the weight part of each raw material is as follows: municipal sludge 50-60, stalk coatedparticles 5-8, gypsum 4-6, silicate cement 10-15, fluorite slag 14-18, shale 5-8, modified meerschaum 3-5, volcanics 10-15, zeolite 15-25, coconut husk charcoal 5-10;
(3) the above-mentioned compound that makes is stacked ageing 2-3 days;
(4) mud after the ageing is carried out pugging after, send into brick press, by extruding be cut into adobe;
(5) the moulding adobe is piled up neatly, after drying in the shade 3-5 days under the natural condition, at 105-115 ℃ of lower forced air drying 20-24h, making its water ratio is 10-15%;
(6) send into the stove sintering, sintering temperature is 1020-1060 ℃, grill thoroughly adobe after, be cooled to the room temperature kiln discharge brick that gets product.
Described stalk coatedparticles is made by the raw material of following weight part: kaolin 20-25, plant straw powder 15-20, water glass 15-20, carboxymethyl cellulose 0.5-1, clay 4-6; Preparation process is as follows: will add in the high-speed mixer with carboxymethyl cellulose after the kaolin drying; speed with 500-800rpm under 110-120 ℃ mixes 20-30min; after adding again water glass continuation stirring 10-15min; then add plant straw powder, clay with the speed blend 5-10min of 1000-1500rpm; send into granulation in the tablets press after the oven dry; particle diameter is controlled at 2-4mm, namely gets the stalk coatedparticles.
Described modified meerschaum is prepared by following method: place 400-450 ℃ of kiln roasting 2-3h, pulverize and grind to form 100-150 order powder, namely get modified meerschaum behind the porphyrize.
Beneficial effect of the present invention:
The present invention utilizes plant straw powder to coat kaolin by to formula adjustment and process modification, can obviously improve water tolerance and the intensity of paving brick; Sepiolite is carried out modification, can improve the adsorptivity of the objectionable impuritiess such as its obnoxious flavour that paving brick is discharged in use, heavy metal.The produced paving brick of the present invention has light weight, intensity is large, water-tolerant, not yielding, the advantages such as safety nuisance free, environmental protection and energy saving.The inventive method is simple, and is easy to operate, and raw material sources are extensive, with low cost, and save energy has reduced any discharging of municipal sludge, has good Social benefit and economic benefit.
Embodiment
A kind of city sewage sludge reclamation is fired the method for paving brick, may further comprise the steps:
(1) be that municipal sludge more than 80% adds and to be equivalent to the unslaked lime of mud weight 30%, 10% flyash with water ratio, mixing and stirring makes its water ratio≤60%, and ageing was deposited 7-10 days;
(2) municipal sludge with water ratio≤60% is sent in the agitator through conveying belt, add stalk coatedparticles, gypsum, silicate cement, fluorite slag, shale, modified meerschaum, volcanics, zeolite, coconut husk charcoal to agitator simultaneously, be stirred into the mixing pug under the 180r/min rotating speed, wherein the weight part of each raw material (kilogram) is as follows: 54 parts of municipal sludges, 6 parts of stalk coatedparticless, 5 parts in gypsum, 12 parts of silicate cements, 15 parts in fluorite slag, 7 parts in shale, 4 parts of modified meerschaums, 10 parts in volcanics, 25 parts in zeolite, 6 parts of coconut husk charcoals;
(3) the above-mentioned compound that makes is stacked ageing 3 days;
(4) mud after the ageing is carried out pugging after, send into brick press, by extruding be cut into adobe;
(5) the moulding adobe is piled up neatly, after drying in the shade 4 days under the natural condition, at 110 ℃ of lower forced air drying 24h, making its water ratio is 12%;
(6) send into the stove sintering, sintering temperature is 1050 ℃, grill thoroughly adobe after, be cooled to the room temperature kiln discharge brick that gets product.
Wherein, described stalk coatedparticles is made by the raw material of following weight part (kilogram): 22 parts of kaolin, 18 parts of plant straw powders, 16 parts of water glass, 0.8 part of carboxymethyl cellulose, 4 parts of clays; Preparation process is as follows: will add in the high-speed mixer with carboxymethyl cellulose after the kaolin drying; speed with 800rpm under 110 ℃ mixes 20min; after adding again water glass continuation stirring 10min; then add plant straw powder, clay with the speed blend 80min of 1200rpm; send into granulation in the tablets press after the oven dry; particle diameter is controlled at 4mm, namely gets the stalk coatedparticles.
Described modified meerschaum is prepared by following method: place 400 ℃ of kiln roasting 3h, pulverize and grind to form 150 order powder, namely get modified meerschaum behind the porphyrize.
Physical and mechanical property detected result such as the following table of sludge brick of the present invention:
| Project | Unit | The result |
| Density | kg/m 3 | 1178 |
| Thermal conductivity | W/（m.k） | 0.136 |
| Ultimate compression strength | MPa | 22.7 |
| Folding strength | MPa | 5.5 |
| Water-intake rate | % | 12.2 |
Claims (3)
1. a city sewage sludge reclamation is fired the method for paving brick, it is characterized in that may further comprise the steps:
(1) be that municipal sludge more than 80% adds and to be equivalent to the unslaked lime of mud weight 30-35%, the flyash of 10-15% with water ratio, mixing and stirring makes its water ratio≤60%, and ageing was deposited 7-10 days;
(2) municipal sludge with water ratio≤60% is sent in the agitator through conveying belt, add stalk coatedparticles, gypsum, silicate cement, fluorite slag, shale, modified meerschaum, volcanics, zeolite, coconut husk charcoal to agitator simultaneously, be stirred into the mixing pug under the 150-200r/min rotating speed, wherein the weight part of each raw material is as follows: municipal sludge 50-60, stalk coatedparticles 5-8, gypsum 4-6, silicate cement 10-15, fluorite slag 14-18, shale 5-8, modified meerschaum 3-5, volcanics 10-15, zeolite 15-25, coconut husk charcoal 5-10;
(3) the above-mentioned compound that makes is stacked ageing 2-3 days;
(4) mud after the ageing is carried out pugging after, send into brick press, by extruding be cut into adobe;
(5) the moulding adobe is piled up neatly, after drying in the shade 3-5 days under the natural condition, at 105-115 ℃ of lower forced air drying 20-24h, making its water ratio is 10-15%;
(6) send into the stove sintering, sintering temperature is 1020-1060 ℃, grill thoroughly adobe after, be cooled to the room temperature kiln discharge brick that gets product.
2. city sewage sludge reclamation according to claim 1 is fired the method for paving brick, it is characterized in that, described stalk coatedparticles is made by the raw material of following weight part: kaolin 20-25, plant straw powder 15-20, water glass 15-20, carboxymethyl cellulose 0.5-1, clay 4-6; Preparation process is as follows: will add in the high-speed mixer with carboxymethyl cellulose after the kaolin drying; speed with 500-800rpm under 110-120 ℃ mixes 20-30min; after adding again water glass continuation stirring 10-15min; then add plant straw powder, clay with the speed blend 5-10min of 1000-1500rpm; send into granulation in the tablets press after the oven dry; particle diameter is controlled at 2-4mm, namely gets the stalk coatedparticles.
3. city sewage sludge reclamation according to claim 1 is fired the method for paving brick, it is characterized in that, described modified meerschaum is prepared by following method: place 400-450 ℃ of kiln roasting 2-3h, pulverize and grind to form 100-150 order powder, namely get modified meerschaum behind the porphyrize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210538258.8A CN103011768B (en) | 2012-12-13 | 2012-12-13 | A kind of city sewage sludge reclamation fires the method for paving brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210538258.8A CN103011768B (en) | 2012-12-13 | 2012-12-13 | A kind of city sewage sludge reclamation fires the method for paving brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103011768A true CN103011768A (en) | 2013-04-03 |
| CN103011768B CN103011768B (en) | 2015-11-18 |
Family
ID=47960937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210538258.8A Expired - Fee Related CN103011768B (en) | 2012-12-13 | 2012-12-13 | A kind of city sewage sludge reclamation fires the method for paving brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103011768B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310959A (en) * | 2014-10-08 | 2015-01-28 | 泰州明锋资源再生科技有限公司 | Building block brick produced by acid pickling sludge and method for producing building block brick |
| CN104529394A (en) * | 2014-12-08 | 2015-04-22 | 王之永 | Method for preparing floor tile by using straw |
| CN105130286A (en) * | 2015-07-06 | 2015-12-09 | 上海理工大学 | River sediment adsorption brick and preparation method thereof |
| CN106478039A (en) * | 2016-10-12 | 2017-03-08 | 陈秋霞 | A kind of insulating mortar and preparation method thereof |
| CN107382367A (en) * | 2017-07-28 | 2017-11-24 | 望江县太慈新型建材有限公司 | A kind of method that common brick is prepared by municipal sludge |
| CN107814553A (en) * | 2017-09-27 | 2018-03-20 | 石狮市鸿辉环保建材有限公司 | A kind of production method of domestic sewage factory firing sludge clinker bricks in environmental protection |
| CN108675762A (en) * | 2018-05-18 | 2018-10-19 | 朱文杰 | A kind of preparation method of red mud permeable brick |
| CN109384360A (en) * | 2018-09-26 | 2019-02-26 | 北京市政建设集团有限责任公司 | A kind of bentonite-waterglass material and its application method in sludge solidification |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225872A (en) * | 2011-04-30 | 2011-10-26 | 云南省建筑科学研究院 | Micropore sealant of aerated concrete blocks and preparation method thereof |
| US20120261863A1 (en) * | 2010-08-25 | 2012-10-18 | King Abdulaziz City For Science And Technology | Building bricks including plastics |
| CN102765908A (en) * | 2012-06-30 | 2012-11-07 | 安徽中龙建材科技有限公司 | Method capable of utilizing mine tailings to produce aerated hollow brick |
-
2012
- 2012-12-13 CN CN201210538258.8A patent/CN103011768B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120261863A1 (en) * | 2010-08-25 | 2012-10-18 | King Abdulaziz City For Science And Technology | Building bricks including plastics |
| CN102225872A (en) * | 2011-04-30 | 2011-10-26 | 云南省建筑科学研究院 | Micropore sealant of aerated concrete blocks and preparation method thereof |
| CN102765908A (en) * | 2012-06-30 | 2012-11-07 | 安徽中龙建材科技有限公司 | Method capable of utilizing mine tailings to produce aerated hollow brick |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310959A (en) * | 2014-10-08 | 2015-01-28 | 泰州明锋资源再生科技有限公司 | Building block brick produced by acid pickling sludge and method for producing building block brick |
| CN104310959B (en) * | 2014-10-08 | 2016-01-27 | 泰州明锋资源再生科技有限公司 | The method of the building block brick utilizing pickling mud to produce and production building block brick |
| CN104529394A (en) * | 2014-12-08 | 2015-04-22 | 王之永 | Method for preparing floor tile by using straw |
| CN105130286A (en) * | 2015-07-06 | 2015-12-09 | 上海理工大学 | River sediment adsorption brick and preparation method thereof |
| CN106478039A (en) * | 2016-10-12 | 2017-03-08 | 陈秋霞 | A kind of insulating mortar and preparation method thereof |
| CN107382367A (en) * | 2017-07-28 | 2017-11-24 | 望江县太慈新型建材有限公司 | A kind of method that common brick is prepared by municipal sludge |
| CN107814553A (en) * | 2017-09-27 | 2018-03-20 | 石狮市鸿辉环保建材有限公司 | A kind of production method of domestic sewage factory firing sludge clinker bricks in environmental protection |
| CN108675762A (en) * | 2018-05-18 | 2018-10-19 | 朱文杰 | A kind of preparation method of red mud permeable brick |
| CN109384360A (en) * | 2018-09-26 | 2019-02-26 | 北京市政建设集团有限责任公司 | A kind of bentonite-waterglass material and its application method in sludge solidification |
| CN109384360B (en) * | 2018-09-26 | 2022-03-22 | 北京市政建设集团有限责任公司 | Bentonite-water glass material and use method thereof in sludge solidification |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103011768B (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103011769B (en) | A kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick | |
| CN103030371B (en) | A kind of high-content municipal sludge brick-making method | |
| CN103011768B (en) | A kind of city sewage sludge reclamation fires the method for paving brick | |
| CN103030364B (en) | A kind of municipal sludge makes the method for floor tile | |
| CN102060559B (en) | Sound adsorption ceramic and production method thereof | |
| CN101475361B (en) | Preparation of clay haydite | |
| CN104261802B (en) | A kind of mud flyash high-strength ceramic granule and preparation method thereof | |
| CN101148346A (en) | Method for preparing haydite from urban sewage plant sludge | |
| CN101475397B (en) | Riverway sludge self-heat preserving sintering porous brick and production method thereof | |
| CN103693943B (en) | Method for firing ceramsite with sludge dehydrated through conditioning | |
| CN101386524A (en) | Method for preparing porcelain granule from waste paper-making sludge | |
| CN101186485A (en) | Sewage sludge shale ceramic particle and preparation method thereof | |
| CN105272159B (en) | A kind of production method of sludge baked brick | |
| CN106518010A (en) | Lightweight self-thermal-insulation building blocks | |
| CN107382367A (en) | A kind of method that common brick is prepared by municipal sludge | |
| CN105693208A (en) | Sintered hollow brick prepared from silt and dumped stone powder | |
| CN103011770B (en) | A kind of municipal sludge high additive makes the method for light high strength sintered brick | |
| CN102173749B (en) | Technology for preparing ceramic tile from sludgeof high-volume municipal water supply plant | |
| CN106518012B (en) | A kind of heat insulation building block | |
| CN104692767A (en) | Coal gangue shale flyash insulation hollow brick and preparation method thereof | |
| CN104692768A (en) | Coal gangue and shale hollow brick with excellent frost resistance and manufacturing method thereof | |
| CN104355590A (en) | Method for firing paving brick by municipal sludge | |
| CN105731998A (en) | Light ceramsite prepared from oil shale semi-coke and preparation method thereof | |
| CN101805204A (en) | Shale, water-containing sludge, biomass ceramsite and production method thereof | |
| CN104176954A (en) | Method for utilizing urban life sewage sludge to product cement road bricks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20171213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |