CN103011769B - A kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick - Google Patents
A kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick Download PDFInfo
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- CN103011769B CN103011769B CN201210538347.2A CN201210538347A CN103011769B CN 103011769 B CN103011769 B CN 103011769B CN 201210538347 A CN201210538347 A CN 201210538347A CN 103011769 B CN103011769 B CN 103011769B
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- municipal sludge
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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
- 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
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- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick, it is brick-making raw material by 60-70 part municipal sludge, 5-10 part stalk coatedparticles, 4-6 part flyash, 5-10 part attapulgite, 4-6 part phosphorus ore slag, 8-12 part haydite, 3-5 part modified meerschaum, 15-20 part volcanics, 10-20 part zeolite, 5-10 part coconut husk charcoal; The produced sludge brick of the present invention does not have that light weight, intensity are large, insulation, soundproof effect are good, water-tolerant, yielding, the advantage such as safety nuisance free, energy-conserving and environment-protective.The inventive method is simple, easy to operate, and raw material sources are extensive, and with low cost, save energy, decreases any discharge of municipal sludge, have good Social benefit and economic benefit.
Description
Technical field
The present invention relates to a kind of manufacture method of material of construction, be specifically related to a kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick.
Background technology
Along with the quickening of Urbanization in China, treatment rate of domestic sewage improves year by year, and number and the sludge yield of municipal sewage plant also increase thereupon.At present, the sludge quantity (dry mass) that municipal sewage plant of China discharges every year is about 1,300,000 t, and increases rapidly with the speed of annual growth 10%.Sludge pollution thing has long term toxicity and non-biodegradable, if let alone unordered discharge, will become dangerous secondary pollution source, enter food chain by media such as air, underground water, surface water and soil, 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 using sludge incineration ash as the spike of vitrified brick, but due to its production process energy consumption excessive, required high cost, is not promoted effectively in China so far.
Summary of the invention
The object of this invention is to provide a kind of method utilizing municipal sludge to produce excellent property, energy-conserving and environment-protective, sludge brick that cost is low.
Utilize municipal sludge to produce a method for building light-weight and energy-saving brick, comprise the following steps:
(1) by water ratio be more than 80% municipal sludge add be equivalent to mud weight 40-50% unslaked lime, 10-12% building masonry rubbish powder, mixing and stirring, 7-10 days is deposited in ageing, makes its water ratio≤60%;
(2) municipal sludge of water ratio≤60% is sent in agitator through conveying belt, add stalk coatedparticles to agitator simultaneously, flyash, clay, phosphorus ore slag, haydite, modified meerschaum, volcanics, zeolite, coconut husk charcoal, mixing pug is stirred under 150-200r/min rotating speed, wherein the weight part of each raw material is as follows: 60-70 part municipal sludge, 5-10 part stalk coatedparticles, 4-6 part flyash, 5-10 part attapulgite, 4-6 part phosphorus ore slag, 8-12 part haydite, 3-5 part modified meerschaum, 15-20 part volcanics, 10-20 part zeolite, 5-10 part coconut husk charcoal,
(3) above-mentioned obtained compound is stacked ageing 2-3 days;
(4), after the mud after ageing being carried out pugging, brick press is sent into, by extruding and being cut into adobe;
(5) pile up neatly by shaping adobe, after drying in the shade under natural condition 3-5 days, forced air drying 20-24h at 110-120 DEG C, makes its water ratio be 10-15%;
(6) send into stove sintering, sintering temperature is 980-1020 DEG C, after grilling thoroughly adobe, is cooled to room temperature kiln discharge and gets product brick.
Described stalk coatedparticles is obtained by the raw material of following weight part: diatomite 25-35, plant straw powder 20-30, water glass 15-25, carboxymethyl cellulose 1-2, clay 5-8; Preparation process is as follows: add in high-speed mixer by after diatomite drying with carboxymethyl cellulose; speed with 500-800rpm at 110-120 DEG C is uniformly mixed 20-30min; after adding water glass continuation stirring 10-15min again; then plant straw powder, clay is added with the blended 5-10min of the speed of 1000-1500rpm; granulation in tablets press is sent into after drying; size controlling, at 2-4mm, obtains stalk coatedparticles.
Described modified meerschaum is prepared by following method: be placed in 400-450 DEG C of kiln kiln roasting 2-3h, pulverizes and grinds to form 100-150 order powder, namely obtain modified meerschaum after porphyrize.
Beneficial effect of the present invention:
The present invention by formula adjustment and process modification, utilizes the coated diatomite of plant straw powder, improves heat insulation effect and the intensity of sludge brick, solves the contradiction that sludge brick intensity and heat-insulating property can not get both well.Modification is carried out to sepiolite, its adsorptivity of the objectionable impurities such as obnoxious flavour, heavy metal to sludge brick release can be improved.The produced sludge brick of the present invention does not have that light weight, intensity are large, insulation, soundproof effect are good, water-tolerant, yielding, the advantage such as safety nuisance free, environmental protection.The inventive method is simple, easy to operate, and raw material sources are extensive, and with low cost, save energy, decreases any discharge of municipal sludge, have good Social benefit and economic benefit.
Embodiment
Utilize municipal sludge to produce a method for building light-weight and energy-saving brick, comprise the following steps:
(1) by water ratio be more than 80% municipal sludge add be equivalent to mud weight 40% unslaked lime, 10% building masonry rubbish powder, mixing and stirring, 7-10 days is deposited in ageing, makes its water ratio≤60%;
(2) municipal sludge of water ratio≤60% is sent in agitator through conveying belt, add stalk coatedparticles, flyash, clay, phosphorus ore slag, haydite, modified meerschaum, volcanics, zeolite, coconut husk charcoal to agitator simultaneously, under 180r/min rotating speed, be stirred into mixing pug, wherein the weight part (kilogram) of each raw material is as follows: 65 parts of municipal sludges, 8 parts of stalk coatedparticless, 5 parts of flyash, 8 parts of attapulgites, 5 parts of phosphorus ore slags, 10 parts of haydites, 4 parts of modified meerschaums, 18 parts of volcanics, 15 parts of zeolites, 8 parts of coconut husk charcoals;
(3) above-mentioned obtained compound is stacked ageing 3 days;
(4), after the mud after ageing being carried out pugging, brick press is sent into, by extruding and being cut into adobe;
(5) pile up neatly by shaping adobe, after drying in the shade under natural condition 4 days, forced air drying 20h at 120 DEG C, makes its water ratio be 15%;
(6) send into stove sintering, sintering temperature is 1020 DEG C, after grilling thoroughly adobe, is cooled to room temperature kiln discharge and gets product brick.
Wherein, described stalk coatedparticles is obtained by the raw material of following weight part (kilogram): 30 parts, diatomite, plant straw powder 25 parts, water glass 20 parts, carboxymethyl cellulose 1.5 parts, clay 6 parts; Preparation process is as follows: add in high-speed mixer by after diatomite drying with carboxymethyl cellulose; speed with 600rpm at 115 DEG C is uniformly mixed 30min; after adding water glass continuation stirring 15min again; then plant straw powder, clay is added with the blended 8min of the speed of 1200rpm; granulation in tablets press is sent into after drying; size controlling, at 3mm, obtains stalk coatedparticles.
Described modified meerschaum is prepared by following method: be placed in 450 DEG C of kiln kiln roasting 2h, pulverizes and grinds to form 150 order powder, namely obtain modified meerschaum after porphyrize.
The physical and mechanical property detected result of sludge brick of the present invention is as following table:
| Project | Unit | Result |
| Density | kg/m 3 | 1052 |
| Thermal conductivity | W/（m.k） | 0.133 |
| Ultimate compression strength | MPa | 23.5 |
| Folding strength | MPa | 6.1 |
| Water-intake rate | % | 11.6 |
Claims (1)
1. the method utilizing municipal sludge to produce building light-weight and energy-saving brick, it is characterized in that comprising the following steps: (1) by water ratio be more than 80% municipal sludge add be equivalent to mud weight 40-50% unslaked lime, 10-12% building masonry rubbish powder, mixing and stirring, 7-10 days is deposited in ageing, makes its water ratio≤60%, (2) municipal sludge of water ratio≤60% is sent in agitator through conveying belt, add stalk coatedparticles to agitator simultaneously, flyash, attapulgite, phosphorus ore slag, haydite, modified meerschaum, volcanics, zeolite, coconut husk charcoal, mixing pug is stirred under 150-200r/min rotating speed, wherein the weight part of each raw material is as follows: 60-70 part municipal sludge, 5-10 part stalk coatedparticles, 4-6 part flyash, 5-10 part attapulgite, 4-6 part phosphorus ore slag, 8-12 part haydite, 3-5 part modified meerschaum, 15-20 part volcanics, 10-20 part zeolite, 5-10 part coconut husk charcoal, (3) obtained compound is stacked ageing 2-3 days, (4), after the mud after ageing being carried out pugging, brick press is sent into, by extruding and being cut into adobe, (5) pile up neatly by shaping adobe, after drying in the shade under natural condition 3-5 days, forced air drying 20-24h at 110-120 DEG C, makes its water ratio be 10-15%, (6) send into stove sintering, sintering temperature is 980-1020 DEG C, after grilling thoroughly adobe, is cooled to room temperature kiln discharge and gets product brick,
Described stalk coatedparticles is obtained by the raw material of following weight part: diatomite 25-35, plant straw powder 20-30, water glass 15-25, carboxymethyl cellulose 1-2, clay 5-8; Preparation process is as follows: add in high-speed mixer by after diatomite drying with carboxymethyl cellulose, speed with 500-800rpm at 110-120 DEG C is uniformly mixed 20-30min, after adding water glass continuation stirring 10-15min again, then plant straw powder, clay is added with the blended 5-10min of the speed of 1000-1500rpm, granulation in tablets press is sent into after drying, size controlling, at 2-4mm, obtains stalk coatedparticles;
Described modified meerschaum is prepared by following method: be placed in 400-450 DEG C of kiln kiln roasting 2-3h, pulverizes and grinds to form 100-150 order powder, namely obtain modified meerschaum after porphyrize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210538347.2A CN103011769B (en) | 2012-12-13 | 2012-12-13 | A kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210538347.2A CN103011769B (en) | 2012-12-13 | 2012-12-13 | A kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick |
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| CN103011769A CN103011769A (en) | 2013-04-03 |
| CN103011769B true CN103011769B (en) | 2015-11-18 |
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| CN201210538347.2A Expired - Fee Related CN103011769B (en) | 2012-12-13 | 2012-12-13 | A kind of method utilizing municipal sludge to produce building light-weight and energy-saving brick |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104646397B (en) * | 2015-02-12 | 2016-08-24 | 陈德章 | Rubbish is paved the way fertilising environment friendly system of building up fields |
| CN106082965A (en) * | 2016-06-15 | 2016-11-09 | 安徽菲扬农业科技有限公司 | A kind of energy-saving brick for garden landscape and preparation method thereof |
| CN106116671A (en) * | 2016-06-27 | 2016-11-16 | 安徽梅兰园林景观工程有限公司 | A kind of energy-saving brick for garden landscape and preparation method thereof |
| CN106365607A (en) * | 2016-08-28 | 2017-02-01 | 梁乔保 | Noise reduction building material |
| CN106365608A (en) * | 2016-08-28 | 2017-02-01 | 梁乔保 | Building material |
| CN106380222A (en) * | 2016-08-28 | 2017-02-08 | 梁乔保 | Environment-friendly building material |
| CN107021738A (en) * | 2017-04-06 | 2017-08-08 | 合肥欧克斯新型建材有限公司 | A kind of plant's energy-saving brick and preparation method |
| CN107235708A (en) * | 2017-07-05 | 2017-10-10 | 合肥片美环保科技有限公司 | Energy-saving brick for gardens and preparation method thereof |
| CN108516755B (en) * | 2018-07-06 | 2020-12-25 | 四川建筑职业技术学院 | Inorganic polymer foam material prepared from sludge and preparation method thereof |
| CN108793968A (en) * | 2018-07-18 | 2018-11-13 | 合肥梵腾环保科技有限公司 | A kind of preparation method of high-strength environment-friendly brick |
| CN109336552A (en) * | 2018-11-19 | 2019-02-15 | 西安建筑科技大学 | A kind of pelletizing method and system of sludge ceramsite |
| CN111925230A (en) * | 2020-07-31 | 2020-11-13 | 电子科技大学 | Spherical hole insulating brick and preparation method thereof |
| CN112408893A (en) * | 2020-12-16 | 2021-02-26 | 绿建生态环境集团有限公司 | High-strength water permeable brick |
Citations (2)
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| 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 |
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| US2012126A (en) * | 1930-08-19 | 1935-08-20 | Bell Telephone Labor Inc | Submarine signaling cable |
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| 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 |
| 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 |
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Granted publication date: 20151118 Termination date: 20171213 |