CN1227207A - Technical process for producing light haydite - Google Patents

Technical process for producing light haydite Download PDF

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Publication number
CN1227207A
CN1227207A CN99101406A CN99101406A CN1227207A CN 1227207 A CN1227207 A CN 1227207A CN 99101406 A CN99101406 A CN 99101406A CN 99101406 A CN99101406 A CN 99101406A CN 1227207 A CN1227207 A CN 1227207A
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China
Prior art keywords
haydite
raw material
auxiliary material
technology
waste
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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
Application number
CN99101406A
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Chinese (zh)
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CN1136166C (en
Inventor
何少先
马培舜
黄德志
刘旭军
黄若华
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Kunming Urban Drainage Co Ltd
Kunming University of Science and Technology
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Kunming Urban Drainage Co Ltd
Kunming University of Science and Technology
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Application filed by Kunming Urban Drainage Co Ltd, Kunming University of Science and Technology filed Critical Kunming Urban Drainage Co Ltd
Priority to CNB991014065A priority Critical patent/CN1136166C/en
Publication of CN1227207A publication Critical patent/CN1227207A/en
Application granted granted Critical
Publication of CN1136166C publication Critical patent/CN1136166C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/135—Combustion residues, e.g. fly ash, incineration waste
    • C04B33/1352—Fuel ashes, e.g. fly ash
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/009—Porous or hollow ceramic granular materials, e.g. microballoons
    • 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 present invention belongs to the field of producing light-wt. aggregate as a building material. Dewatered sludge from sewage treatment plant as well as small amount of clay, slag, fly ash, building refuse and compound iron-and-aluminum-contained additive in rational proportion are produced into light-wt. and high-strength haydite through controlled decarbonizing and baking swelling process. By using waste matter and regenerating resource, the present invention can reduce the cost of haydite production and in sewage treatment plant. The product is used as building aggregate, heat insulating material, flower planting material, filler in biological sewage treatment process, etc.

Description

A kind of Technology of making light ceramic
A kind of Technology of making light ceramic belongs to the architectural materials science field.
Haydite belongs to a kind of of artificial light aggregate, the haydite of domestic and international known production, according to raw materials used difference, be divided into leca, haydites of book structure, coal gangue haydite, slag haydite, pearlite haydite, vermiculite haydite, lytag etc. substantially, institute's adopting process is batching, moulding, give heat, burn expand, cooling, screening, classification etc.The Chemical Composition of raw material is: SiO 248～65%, Al 2O 314～20%, Fe 2O 32～9%, CaO 0～5%, MgO about 0.3%, Na 2O+K 2O 1～5%, just each difference to some extent at aspects such as batching, equipment used and processing condition of loss on ignition 4～13%, production technique.Mostly there is following problem in these technologies: for example leca will be a raw material with soil, takies a large amount of arable lands; Lytag can make full use of waste but the haydite unit weight of production is bigger, can't produce light ceramic, influences its functions of use; Have plenty of in the preheating and the process that burn to expand consume big energy, production cost is relative higher.Shanghai building research institute was once studied, and with excess sludge potting grain, but the ratio of mud in raw material only account for about 20%, and the haydite unit weight of production is big, and the unresolved burning problem that expands.
The objective of the invention is to utilize the Sewage Plant dewatered sludge to be main raw material, be equipped with admixtures such as the auxiliary material such as a certain amount of clay, flyash and production of sulfur from pyrite acid waste residue, by Decarburization Control carbon iron than, optimize and burn the processing condition that expand, produce light high-strength haydite.
The present invention is achieved through the following technical solutions:
Fig. 1 is a process flow sheet, and it is expanded, cooled off and form by feed proportioning, homogenizing, moulding, drying, decarburization, burning.Batching is made up of raw material, auxiliary material, compound additive, raw material is the dewatered sludge that sewage work discharges, auxiliary material is clay, shale, cinder, slag, building waste etc., compound additive is the waste of iron content and aluminium, the waste residue after the production of sulfur from pyrite acid for example, the flyash that power plant discharges, the waste behind the medium tin ore chloridizing volatilization metallurgy.Three's weight percent is raw material 68～77%, auxiliary material 20～25%, compound additive 3～5%.Compound additive is in order to regulate iron in the raw material, aluminium content with the burning that improves the product haydite expand rate and intensity, to have only where necessary just need add.
The processing condition of decarburization are: 300～500 ℃ of temperature, 10～30 minutes time.Burn the processing condition that expand: 1100～1200 ℃ of temperature, 5～10 minutes time.
The product haydite loose volume weight of producing is 452～587kg/m 3, particle unit weight is 852～1049kg/m 3, water-intake rate is 550,600,700 grades of light ceramics of 13.7～15.4%, meets the desired light skeletal performance index of high-strength light insulating board for building fully.
Compare advantage and extremely long-pending effect that the present invention has with known technology
1. the present invention is raw materials used mainly is the dewatered sludge of Sewage Plant, on the leading indicators such as the content of its main chemical silicon, aluminium and loss on ignition all outside known haydite (LeCa haydite) value range, and differ very big, because prescription rationally, and when control decarburization and burn the technical qualification that expand by the carbon iron of control in the raw material, the products obtained therefrom haydite has multinomial performances such as lightweight, high-strength, fire-resistant, sound insulation, waterproof, shock resistance;
2. fully, reasonable use the heat that organism discharges in heat-processed in the mud, reduce the fuel usage quantity, shortened and burnt the time of expanding, loss on ignition is big, is weight reduction, improves intensity, the production cost that reduces haydite lays the foundation;
3. exhausted major part is the waste that factory discharges no matter employed raw material is main raw material, auxiliary material and admixture, makes resource obtain regeneration on the one hand, and original no-good waste is become the higher resource of added value, has avoided the mud contaminate environment; Reduce storing up and transport charge of these waste materials on the other hand, reduced the production cost of factory;
4. the haydite made of present method also can be used for heat insulation, the insulation on roof except that being used to build the aggregate; The agricultural flower planting; The filler that the filtration that productive life water is used, biological process are disposed of sewage etc.
Embodiment 1
1. raw material is Kunming first sewage work's dewatered sludge 71%, and auxiliary material clay 25%, admixture are the waste residue 4% after the production of sulfur from pyrite acid.Dewatered sludge (moisture 80%) Chemical Composition: SiO 227.72%, Al 2O 39.93%, Fe 2O 38.37%, CaO 5.12%, MgO 1.78%, Na 2O 0.14%, K 2O 1.72%, loss on ignition 37.03%.Auxiliary material is a clay, Chemical Composition: SiO 267.57%, Al 2O 315.44%, Fe 2O 35.27%, CaO 1.14%, and MgO 1.34%, Na 2O 0.065%, K 2O 3.02%, loss on ignition 6.07%.
2. processing condition: 400 ℃ of decarburization temperature, decarburization time 25 minutes burns 1150 ℃ of the temperature of expanding, and burns the 5 minutes time of expanding.
3. gained haydite particle unit weight 852kg/m 3, loose capacity 452kg/m 3, water-intake rate 15.5%.
Embodiment 2
1. raw material is identical with last example
Auxiliary material: 1. area, Kunming boiler for domestic discharges coal ash, Chemical Composition: SiO 263.57%, Al 2O 312.72%, Fe 2O 35.21%, CaO 4.63%, MgO 0.89%, Na 2O 0.15%, K 2O 0.30%, loss on ignition 11.38%.2. Kunming area clay, the same example of Chemical Composition
2. proportioning raw materials: dewatered sludge 77%, flyash 20%, clay 3%, 300 ℃ of decarburization temperature, 30 minutes time, burn 1100 ℃ of the temperature of expanding, burn the 5 minutes time of expanding.
3. the loose capacity 621kg/m of the haydite that obtains 3, particle capacity 1108kg/m 3, water-intake rate 18.8%.

Claims (4)

1. Technology of making light ceramic, its technical process comprise that feed proportioning, homogenizing, moulding, drying, decarburization, burning expand, cooling, it is characterized in that:
(1) feed proportioning: form by raw material, auxiliary material, compound additive, raw material is the dewatered sludge that sewage work discharges, auxiliary material is clay, shale, cinder, slag, building waste etc., compound additive is the waste of iron content and aluminium, three's weight percent is a raw material 68～77%, auxiliary material 20～25%, compound additive 3～5%.
(2) the decarbonization process condition is, 300～500 ℃ of temperature, 10～30 minutes time.
(3) burn the processing condition that expand and be temperature 1100～1200, time 5～10 minutes
2. a kind of Technology of making light ceramic according to claim 1 is characterized in that: the Chemical Composition of dewatered sludge (moisture 80%) is SiO 227.72%, Al 2O 39.97%, Fe 2O 338.37%, CaO 5.12%, MgO 1.78%.Na 2O 0.14%, K 2O 1.72%, loss on ignition 37.03%.
3. a kind of Technology of making light ceramic according to claim 1, it is characterized in that: the auxiliary material Chemical Composition is SiO 263.57%, Al 2O 312.72%, Fe 2O 35.21%, CaO4.63%, MgO 0.89%, Na 2O 0.15%, K 2O 0.30%, loss on ignition 11.38%.
4. a kind of Technology of making light ceramic according to claim 1 is characterized in that: compound additive is the waste residue after the production of sulfur from pyrite acid, the flyash that power plant discharges, and metallurgical waste is waved in the medium tin ore chlorination.
CNB991014065A 1999-01-22 1999-01-22 Technical process for producing light haydite Expired - Fee Related CN1136166C (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1297497C (en) * 2004-06-01 2007-01-31 孙星 Cellural haydite and preparation method and dedicated equipment
CN100457673C (en) * 2004-10-22 2009-02-04 云南省可保煤矿 Lightweight waste slag haydite and its preparation method
US7655088B2 (en) 2005-01-14 2010-02-02 Alkemy, Ltd. Synthetic aggregates comprising sewage sludge and other waste materials and methods for producing such aggregates
US7704317B2 (en) 2005-01-14 2010-04-27 Alkemy, Ltd. Pyroprocessed aggregates comprising IBA and PFA and methods for producing such aggregates
US7780781B2 (en) 2005-01-14 2010-08-24 Alkemy, Ltd. Pyroprocessed aggregates comprising IBA and low calcium silicoaluminous materials and methods for producing such aggregates
CN101857353A (en) * 2010-07-02 2010-10-13 胶南市易通热电有限责任公司 Processing method for sludge with high water content
CN101898899A (en) * 2010-03-22 2010-12-01 深圳市兖能环保科技有限公司 Method and process for producing swelling ceramsite from sludge generated in process of sewage treatment
CN101407407B (en) * 2007-10-10 2011-06-15 中国环境科学研究院 Method for baking bricks from mixture of biological dewatered sludge and construction wastes
CN102633491A (en) * 2012-05-17 2012-08-15 浙江方远建材科技有限公司 Efficient sound-absorbing ceramsite
CN102633519A (en) * 2012-05-08 2012-08-15 信阳师范学院 Light inorganic mineral polymeric material with expanded perlite and natural zeolite as main materials, and preparation method of the light inorganic mineral polymeric material
CN102718465A (en) * 2012-05-28 2012-10-10 湖北大悟科亮环保科技有限公司 Resource treatment method for sludge and household refuse
CN102826831A (en) * 2012-09-06 2012-12-19 金立虎 Stale refuse slag powder and stale refuse plastic sludge sand ceramsite and manufacturing method thereof
CN102838376A (en) * 2012-09-18 2012-12-26 武汉理工大学 Preparation method of light-weight closed-pore ceramic heat insulating board
CN105130397A (en) * 2015-07-13 2015-12-09 昆明理工大学 Novel ceramisite and preparation method thereof
CN105753352A (en) * 2016-01-25 2016-07-13 李国安 Technique for producing building aggregate with industrial waste residues as supporting material
CN106187094A (en) * 2016-07-20 2016-12-07 武汉钢铁股份有限公司 A kind of cold rolling chromium-bearing sludge haydite and preparation method
CN108751968A (en) * 2018-06-13 2018-11-06 北京科技大学 A kind of porous ceramic film material preparation method of intrinsic pore-forming
CN109467443A (en) * 2019-01-15 2019-03-15 宜昌光大陶粒制品有限责任公司 A kind of preparation method of sludge regeneration haydite
CN109553434A (en) * 2018-12-31 2019-04-02 郑州德赛尔陶粒有限公司 A kind of high-strength light haydites of book structure and preparation method thereof
CN110917723A (en) * 2019-12-13 2020-03-27 陕西速源节能科技有限公司 Method for preparing ceramsite filter material for sewage treatment by using building wastes
CN111943715A (en) * 2020-08-18 2020-11-17 河南农业大学 Method for firing ceramsite based on modified sludge
CN112880394A (en) * 2021-01-27 2021-06-01 山东义科节能科技股份有限公司 Kiln system and method for firing ceramsite containing heat value raw material and by-producing waste heat

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CN100375733C (en) * 2006-05-16 2008-03-19 武汉理工大学 Super-light sludge ceramic granules and preparing method
CN101327987B (en) * 2008-07-08 2011-09-14 山东大学 Use of sludge porcelain granule in sewage disposal

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1297497C (en) * 2004-06-01 2007-01-31 孙星 Cellural haydite and preparation method and dedicated equipment
CN100457673C (en) * 2004-10-22 2009-02-04 云南省可保煤矿 Lightweight waste slag haydite and its preparation method
US8206504B2 (en) 2005-01-14 2012-06-26 Alkemy, Ltd. Synthetic aggregates comprising sewage sludge and other waste materials and methods for producing such aggregates
US7655088B2 (en) 2005-01-14 2010-02-02 Alkemy, Ltd. Synthetic aggregates comprising sewage sludge and other waste materials and methods for producing such aggregates
US7780781B2 (en) 2005-01-14 2010-08-24 Alkemy, Ltd. Pyroprocessed aggregates comprising IBA and low calcium silicoaluminous materials and methods for producing such aggregates
US8349070B2 (en) 2005-01-14 2013-01-08 Alkemy, Ltd. Pyroprocessed aggregates comprising IBA and low calcium silicoaluminous materials and methods for producing such aggregates
US7704317B2 (en) 2005-01-14 2010-04-27 Alkemy, Ltd. Pyroprocessed aggregates comprising IBA and PFA and methods for producing such aggregates
CN101407407B (en) * 2007-10-10 2011-06-15 中国环境科学研究院 Method for baking bricks from mixture of biological dewatered sludge and construction wastes
CN101898899A (en) * 2010-03-22 2010-12-01 深圳市兖能环保科技有限公司 Method and process for producing swelling ceramsite from sludge generated in process of sewage treatment
CN101857353A (en) * 2010-07-02 2010-10-13 胶南市易通热电有限责任公司 Processing method for sludge with high water content
CN101857353B (en) * 2010-07-02 2012-09-12 胶南市易通热电有限责任公司 Processing method for sludge with high water content
CN102633519A (en) * 2012-05-08 2012-08-15 信阳师范学院 Light inorganic mineral polymeric material with expanded perlite and natural zeolite as main materials, and preparation method of the light inorganic mineral polymeric material
CN102633491A (en) * 2012-05-17 2012-08-15 浙江方远建材科技有限公司 Efficient sound-absorbing ceramsite
CN102718465A (en) * 2012-05-28 2012-10-10 湖北大悟科亮环保科技有限公司 Resource treatment method for sludge and household refuse
CN102826831A (en) * 2012-09-06 2012-12-19 金立虎 Stale refuse slag powder and stale refuse plastic sludge sand ceramsite and manufacturing method thereof
CN102826831B (en) * 2012-09-06 2014-11-26 金立虎 Stale refuse slag powder and stale refuse plastic sludge sand ceramsite and manufacturing method thereof
CN102838376A (en) * 2012-09-18 2012-12-26 武汉理工大学 Preparation method of light-weight closed-pore ceramic heat insulating board
CN102838376B (en) * 2012-09-18 2014-04-09 武汉理工大学 Preparation method of light-weight closed-pore ceramic heat insulating board
CN105130397A (en) * 2015-07-13 2015-12-09 昆明理工大学 Novel ceramisite and preparation method thereof
CN105753352A (en) * 2016-01-25 2016-07-13 李国安 Technique for producing building aggregate with industrial waste residues as supporting material
CN106187094A (en) * 2016-07-20 2016-12-07 武汉钢铁股份有限公司 A kind of cold rolling chromium-bearing sludge haydite and preparation method
CN106187094B (en) * 2016-07-20 2019-01-18 武汉钢铁有限公司 A kind of cold rolling chromium-bearing sludge haydite and preparation method
CN108751968A (en) * 2018-06-13 2018-11-06 北京科技大学 A kind of porous ceramic film material preparation method of intrinsic pore-forming
CN109553434A (en) * 2018-12-31 2019-04-02 郑州德赛尔陶粒有限公司 A kind of high-strength light haydites of book structure and preparation method thereof
CN109467443A (en) * 2019-01-15 2019-03-15 宜昌光大陶粒制品有限责任公司 A kind of preparation method of sludge regeneration haydite
CN110917723A (en) * 2019-12-13 2020-03-27 陕西速源节能科技有限公司 Method for preparing ceramsite filter material for sewage treatment by using building wastes
CN111943715A (en) * 2020-08-18 2020-11-17 河南农业大学 Method for firing ceramsite based on modified sludge
CN112880394A (en) * 2021-01-27 2021-06-01 山东义科节能科技股份有限公司 Kiln system and method for firing ceramsite containing heat value raw material and by-producing waste heat
CN112880394B (en) * 2021-01-27 2022-08-30 山东义科节能科技股份有限公司 Kiln system and method for firing ceramsite containing heat value raw material and by-producing waste heat

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