CN102731064B - Method for preparing splitting tiles by using Tai lake silt - Google Patents
Method for preparing splitting tiles by using Tai lake silt Download PDFInfo
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- CN102731064B CN102731064B CN201210219141.3A CN201210219141A CN102731064B CN 102731064 B CN102731064 B CN 102731064B CN 201210219141 A CN201210219141 A CN 201210219141A CN 102731064 B CN102731064 B CN 102731064B
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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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Abstract
The present invention discloses a method for preparing splitting tiles by using Taihu silt. The method comprises: adding feldspar, kaolin, quartz, mica, a dry mixing agent and water to dried particles of a Taihu silt raw material, mixing and uniformly stirring, and then sequentially carrying out extruding forming, drying, and calcination to prepare the splitting tiles. According to the present invention, the difficulty of Taihu silt treatment can be solved from the source; with high temperature calcination, the problem of heavy metals, pathogens and organic pollutants in the Taihu silt is thoroughly solved so as to achieve regeneration resource utilization of the silt, and avoid secondary pollution generation; and the produced splitting tiles have characteristics of excellent flexural strength, anti-erosion property and the like, and do not produce secondary pollution after high temperature calcination, such that a large amount of land occupation required by landfill can be saved, and requirements of environmental protection and comprehensive utilization of resources in our country are met.
Description
Technical field
The invention belongs to environment protection and utilization of resources field, be specifically related to a kind of method of utilizing Taihu Lake mud to prepare Splitting Tile.
Background technology
In the mud of current Taihu Lake, contain a large amount of microorganisms, pathogenic agent, heavy metal and organic pollutant, as processed, be not good at causing secondary severe contamination, particularly enter season in midsummer, rising along with temperature, in TAIHU LAKE, having a large amount of blue-green algaes produces, but analyze and find from the production process of blue-green algae, it not only has relation with water quality temperature, and with Taihu Lake in a large amount of mud of existing have close relationship, current water conservancy at different levels environmental administration clears out later disposal to the mud in Taihu Lake every year, Main Means or landfill and burning disposal are main, owing to containing a large amount of organism and heavy metal in mud, as adopt landfill, can bring great harm to soil, simultaneously because mud water ratio is higher, mechanical property is poor, not only take landfill place, often can also cause secondary pollution.As adopt burning disposal, and investment and running cost are all higher, and particularly energy consumption is larger, also exists the problem of the off gas treatment while burning simultaneously.Therefore, properly settling the problem of utilizing of Taihu Lake mud, become the task of top priority, is also effectively to solve TAIHU LAKE matter, prevents the important topic that blue-green algae grows.
Summary of the invention
There is technical deficiency mainly for the disposal of Taihu Lake mud in the present invention, provides that a kind of cost is low, effective, applied widely, a kind of Taihu Lake mud that utilizes of non-secondary pollution is prepared Splitting Tile method at present.
Object of the present invention can reach to make by following technique and require:
Utilize Taihu Lake mud to prepare the method for Splitting Tile: by the dry material of raw material Taihu Lake mud, to add feldspar, kaolin, quartz, mica, be dry mixed agent and the rear uniform stirring of water mixing, by being dried after extrusion under vacuum, then make after calcining; Wherein the mass ratio of each raw material is, Taihu Lake mud is dried a material, feldspar, kaolin, quartz, mica, is dry mixed agent: water=10～50:15～40:8～30:3～6:2～5:1～5:3～8.
The preferred mass ratio of above-mentioned each raw material is: Taihu Lake mud is dried a material, feldspar, kaolin, quartz, mica, is dry mixed agent: water=20～40:30～40:15～30:4～6:2～5:1～4:5～8.
A mud dry material in Taihu Lake is formed by Taihu Lake mud drying and crushing, and its water ratio is 20%～40%.In the dry material of Taihu Lake mud, also can add pigment or other raw materials, make the Splitting Tile of making there is special color, as red in dimness etc.
The median size of above-mentioned feldspar is 16～32mm.
The described agent that is dry mixed adopts interfacial agents or binding agent.
In adopting extrusion molding, the pressure of selecting extrusion molding is 10～20Mpa, and the forming pressure hold-time is no less than 3 seconds.
In drying process, the temperature of selecting is 110～130 ℃, take 120 ℃ as best, and be 2～5 hours its time of drying.
Generally, after extrusion molding and before dry, need place under field conditions (factors) preferably 2～4 hours 1～3 hour.
In calcination process, it is 1106～1180 ℃ that temperature is controlled, and calcination time is generally 5～11 hours.
The average shrinkage ratio of the Splitting Tile that present method makes is 3.8～5.2%, folding strength average out to 22.4～29.5MPa, frost resistance-28～+ 32c, aberration 0.16～0.2%, 8.5～10.5 grades of shock resistance earthquake intensitys, shock resistance 0.75～0.8MPa, average water-intake rate is between 7.5～8.3%.Ultimate compression strength average out to 15.5～21.8.MPa.The size of Splitting Tile can be adjusted as required, as adopted more conventional 260*66*30mm equal-specification size.
The present invention utilizes Taihu Lake mud and adds other raw material production Splitting Tiles, can realize the lifting of Taihu Lake water quality, also can realize the innoxious and comprehensive utilization of resources of Taihu Lake mud, it is turned waste into wealth, the Splitting Tile of producing can meet building outer wall decorative material, park, the service requirements of gardens, square, house garden, again can be as the carrier of building type material.
The present invention can solve from source the difficult problem that Taihu Lake sludge treatment is disposed, and has thoroughly solved the problem of Taihu Lake heavy metal in sludge, pathogenic agent and organic pollutant, has realized the renewable resource utilization of mud, has avoided the generation of secondary pollution.It is good that the Splitting Tile of producing not only has folding strength, the features such as scour resistance is good, and the Splitting Tile of producing is after high-temperature calcination, can not produce secondary pollution, can save the required soil taking of a large amount of landfills, also can effectively avoid the exhaust emission environmental problem that adopts burning to bring, in conjunction with current China, carrying out promoting the use of of environmental renovation and building outer wall decorative material simultaneously, from resource circulation utilization, meet China environmental protection comprehensive utilization of resources requirement, the relatively more applicable building outer wall decorative material of this Splitting Tile and park, gardens, square, house garden and afforestation ecological engineering.
Embodiment
Embodiment 1
1, according to following weight per-cent, prepare burden: 1, Taihu Lake mud 35% (water ratio 35%), feldspar 33%(median size 30mm), kaolin 23%, quartzy 4%, mica 2%, water 6%, interfacial agents 2%.
2, first Taihu Lake mud is dried and crushed into fine-grannular, while making water ratio reach 35%, then with above-mentioned materials mix stir after by vacuum extrusion, adopt extrusion machine pre-formed under 20MPa pressure condition, molding time is 2 seconds.
3, the base brick after extrusion molding is placed under field conditions (factors) 3 hours laggard drying rooms and is dried, and temperature is at 110 ℃, and the time is 5 hours, then enters kiln and burn till, and the time is 9 hours, and temperature is 1120 ℃, and kiln discharge obtains Splitting Tile finished product.Average shrinkage ratio is 4.1～4.5%, folding strength average out to 26.7～28.9MPa, and ultimate compression strength average out to 18.7MPa, frost resistance-30～+ 30c, aberration is less than 0.2,10 grades of shock resistance earthquake intensitys, shock resistance 0.77MPa, average water-intake rate 8.08%.
Embodiment 2
1, according to following weight per-cent, prepare burden: 1, Taihu Lake mud 30% (water ratio 28%), feldspar 35%(median size 25mm), kaolin 17%, quartzy 5%, mica 3%, water 7%, interfacial agents 3%.
2, first Taihu Lake mud is dried and crushed into fine-grannular, while making water ratio reach 28%, then with above-mentioned materials mix stir after by vacuum extrusion, adopt extrusion machine pre-formed under 13MPa pressure condition, molding time is 3 seconds.
3, the base brick after extrusion molding is placed under field conditions (factors) 2 hours laggard drying rooms and is dried, and temperature is at 113 ℃, and the time is 4 hours, then enters kiln and burn till, and the time is 8 hours, and temperature is 1140 ℃, and kiln discharge obtains Splitting Tile finished product.Average shrinkage ratio is 3.9～4.5%, folding strength average out to 23.4～24.5MPa, and ultimate compression strength average out to 19.8.MPa, frost resistance-29～+ 29c, aberration is less than 0.15,9.5 grades of shock resistance earthquake intensitys, shock resistance 0.76MPa, average water-intake rate 7.97%.
Embodiment 3
1, according to following weight per-cent, prepare burden: 1, Taihu Lake mud 25% (water ratio 30%), feldspar 40%(median size 23mm), kaolin 20%, quartzy 4%, mica 5%, water 5%, binding agent 1%.
2, first Taihu Lake mud is dried and crushed into fine-grannular, while making water ratio reach 30%, then with above-mentioned materials mix stir after by vacuum extrusion, adopt extrusion machine pre-formed under 16MPa pressure condition, molding time is 4 seconds.
3, the base brick after extrusion molding is placed under field conditions (factors) 1 hour laggard drying room and is dried, and temperature is at 115 ℃, and the time is 4.5 hours, then enters kiln and burn till, and the time is 7 hours, and temperature is 1160 ℃, and kiln discharge obtains Splitting Tile finished product.Average shrinkage ratio is 4.3～4.5%, folding strength average out to 23.3～25.5MPa, and ultimate compression strength average out to 18.MPa, frost resistance-31～+ 31c, aberration is less than 0.16,9 grades of shock resistance earthquake intensitys, shock resistance 0.78MPa, average water-intake rate 8.14%.
Embodiment 4
1, according to following weight per-cent, prepare burden: 1, Taihu Lake mud 27% (water ratio 26%), feldspar 35%(median size 23mm), kaolin 26%, quartzy 6%, mica 4%, water 8%, interfacial agents 4%.
2, first Taihu Lake mud is dried and crushed into fine-grannular, while making water ratio reach 26%, then with above-mentioned materials mix stir after by vacuum extrusion, adopt extrusion machine pre-formed under 10MPa pressure condition, molding time is 5 seconds.
3, the base brick after extrusion molding is placed under field conditions (factors) 4 hours laggard drying rooms and is dried, and temperature is at 120 ℃, and the time is 6 hours, then enters kiln and burn till, and the time is 8.5 hours, and temperature is 1180 ℃, and kiln discharge obtains Splitting Tile finished product.Average shrinkage ratio is 4.5～5.0%, folding strength average out to 25.6～26.5MPa, and ultimate compression strength average out to 20MPa, frost resistance-32～+ 32c, aberration is less than 0.18,10.5 grades of shock resistance earthquake intensitys, shock resistance 0.80MPa, average water-intake rate 8.21%.
Claims (7)
1. a method of utilizing Taihu Lake mud to prepare Splitting Tile, it is characterized in that the dry material of raw material Taihu Lake mud, add feldspar, kaolin, quartz, mica, be dry mixed agent and the rear uniform stirring of water mixing, by being dried after extrusion molding, then at 1106～1180 ℃, calcine after 5～11 hours and make; Wherein the mass ratio of each raw material is, Taihu Lake mud is dried a material, feldspar, kaolin, quartz, mica, is dry mixed agent: water=20～40:30～40:15～30:4～6:2～5:1～4:5～8; A mud dry material in described Taihu Lake is formed by Taihu Lake mud drying and crushing, and its water ratio is 20%～40%.
2. method according to claim 1, the median size that it is characterized in that described feldspar is 16～32mm.
3. method according to claim 1, is dry mixed agent and adopts interfacial agents or binding agent described in it is characterized in that.
4. method according to claim 1, the pressure that it is characterized in that described extrusion molding is 10～20MPa, the forming pressure hold-time is no less than 3 seconds.
5. method according to claim 1, is characterized in that described drying temperature is 110～130 ℃, and be 1～4 hour time of drying.
6. method according to claim 1, is characterized in that, by after extrusion under vacuum and before dry, need placing under field conditions (factors) 1～3 hour.
7. method according to claim 1, is characterized in that the average shrinkage ratio of the Splitting Tile that makes is 3.8～5.2%, folding strength average out to 22.4～29.5MPa, ultimate compression strength average out to 15.5～21.8MPa; Aberration 0.16～0.2%, 8.5～10.5 grades of shock resistance earthquake intensitys, shock resistance 0.75～0.8MPa.
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| CN201210219141.3A CN102731064B (en) | 2012-06-28 | 2012-06-28 | Method for preparing splitting tiles by using Tai lake silt |
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| CN102731064B true CN102731064B (en) | 2014-03-19 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102924047B (en) * | 2012-11-12 | 2015-02-04 | 北京清焰石科技发展有限公司 | Pre-sintered porcelain body |
| CN103332924A (en) * | 2013-06-24 | 2013-10-02 | 新嘉理（江苏）陶瓷有限公司 | Preparation method of sintered water permeable brick |
| CN103396096A (en) * | 2013-07-31 | 2013-11-20 | 湖北红莲湖博悦轻质材料有限公司 | Method for preparing split bricks by utilizing sludge in red lotus lake |
| CN104310977A (en) * | 2014-09-26 | 2015-01-28 | 宜兴市盛阳陶瓷有限公司 | Preparation method of ceramic art culture brick |
| CN106187076A (en) * | 2016-07-13 | 2016-12-07 | 南通中兴多元复合钢管有限公司 | Fred salts is utilized to prepare fired brick technology |
| CN107162564A (en) * | 2017-05-22 | 2017-09-15 | 苏州太湖窑陶瓷有限公司 | A kind of clear mud porcelain and its preparation technology |
| CN107188529A (en) * | 2017-06-27 | 2017-09-22 | 常州奕轩纺织品有限公司 | A kind of Splitting Tile and preparation method thereof |
| CN107459290A (en) * | 2017-08-31 | 2017-12-12 | 常州海瑞纺织品有限公司 | A kind of preparation method of grass-planting brick raw material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979357A (en) * | 2010-10-09 | 2011-02-23 | 南京明裕恒材料科技有限公司 | Calcium silicate material prepared from river mud and preparation method thereof |
| CN102173749A (en) * | 2011-01-06 | 2011-09-07 | 长沙理工大学 | Technology for preparing ceramic tile from high-volume municipal water supply plant sludge |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979357A (en) * | 2010-10-09 | 2011-02-23 | 南京明裕恒材料科技有限公司 | Calcium silicate material prepared from river mud and preparation method thereof |
| CN102173749A (en) * | 2011-01-06 | 2011-09-07 | 长沙理工大学 | Technology for preparing ceramic tile from high-volume municipal water supply plant sludge |
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Address after: 210014 Jiangsu Province, Nanjing city Yongfeng Road No. 36 Baixia High-tech Park 6 Building 7 floor Patentee after: Jiangsu Longteng engineering Tsukito design Inc Address before: 211113 Nanjing, Jiangsu, Qin Lu Road, No. 2, Jiangning Patentee before: Jiangsu Long-leaping Engineering Design Co., Ltd. |