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Method for preparing refractory bricks from refractory clay clinker
The invention discloses a method for preparing a refractory brick from refractory clay clinker. The preparation raw materials are refractory clay clinker and coal slime tailings slag, wherein the refractory clay clinker accounts for 70%, and the coal slime tailings slag accounts for 30%; the preparation method comprises the following steps: adding water into the refractory clay clinker and the coal slime tailing slag, stirring and mixing to obtain a raw material mixture clinker of which the water content is less than or equal to 15%, and preparing a blank by utilizing the raw material mixtureclinker, the blank preparation process comprises forming, stirring, rolling, extruding, slitting and dicing; obtaining a blank body after the blank manufacturing process, and obtaining a product afterthe blank body is sequentially dried, fired in a kiln and cooled; the raw material mixture clinker comprises the following components in percentage by weight: SiO2 accounts for 47%-56%, Al2O3 accounts for 37%-42%, Fe2O3 accounts for 3%-5.6%, CaO accounts for 0.2%-0.5%, Mg accounts for 0.5%-1%, TiO2 accounts for 0.5%-1%, K2O accounts for 0.3%-0.6%, and Na2O accounts for 0.2%-0.21%. According to the invention, the refractory brick is prepared from the coal slime tailing slag wastes, so that the technical blank of preparing clay refractory raw materials from domestic coal slime tailings is filled up, field-destroying regret exploitation is reduced, and land resources are protected.
本发明公开了一种耐火黏土熟料制备耐火砖的方法，制备原料为耐火黏土熟料和煤泥尾矿渣，其中，耐火黏土熟料占比70％，煤泥尾矿渣占比30％，将耐火黏土熟料和煤泥尾矿渣加水搅拌混合获得原料混合物熟料，原料混合物熟料的含水率小于等于15％，利用原料混合物熟料制坯，制坯过程包括：成化、搅拌、碾压、挤出、切条以及切块；制坯过程后获得坯体，坯体依次经过干燥、入窑烧制以及冷却后获得制品；原料混合物熟料的组分占比分别为：SiO2占47～56％，Al2O3占37～42％，Fe2O3占3～5.6％，CaO占0.2～0.5％，Mg占0.5～1％，TiO2占0.5～1％，K2O占0.3～0.6％以及Na2O占0.2～0.21％。本发明利用煤泥尾矿渣“废弃物”制耐火砖，填补了国内煤泥尾矿制备黏土质耐火原料技术空白，减少毁田悔林开采，保护土地资源。
Method for preparing refractory bricks from refractory clay clinker
The invention discloses a method for preparing a refractory brick from refractory clay clinker. The preparation raw materials are refractory clay clinker and coal slime tailings slag, wherein the refractory clay clinker accounts for 70%, and the coal slime tailings slag accounts for 30%; the preparation method comprises the following steps: adding water into the refractory clay clinker and the coal slime tailing slag, stirring and mixing to obtain a raw material mixture clinker of which the water content is less than or equal to 15%, and preparing a blank by utilizing the raw material mixtureclinker, the blank preparation process comprises forming, stirring, rolling, extruding, slitting and dicing; obtaining a blank body after the blank manufacturing process, and obtaining a product afterthe blank body is sequentially dried, fired in a kiln and cooled; the raw material mixture clinker comprises the following components in percentage by weight: SiO2 accounts for 47%-56%, Al2O3 accounts for 37%-42%, Fe2O3 accounts for 3%-5.6%, CaO accounts for 0.2%-0.5%, Mg accounts for 0.5%-1%, TiO2 accounts for 0.5%-1%, K2O accounts for 0.3%-0.6%, and Na2O accounts for 0.2%-0.21%. According to the invention, the refractory brick is prepared from the coal slime tailing slag wastes, so that the technical blank of preparing clay refractory raw materials from domestic coal slime tailings is filled up, field-destroying regret exploitation is reduced, and land resources are protected.
本发明公开了一种耐火黏土熟料制备耐火砖的方法，制备原料为耐火黏土熟料和煤泥尾矿渣，其中，耐火黏土熟料占比70％，煤泥尾矿渣占比30％，将耐火黏土熟料和煤泥尾矿渣加水搅拌混合获得原料混合物熟料，原料混合物熟料的含水率小于等于15％，利用原料混合物熟料制坯，制坯过程包括：成化、搅拌、碾压、挤出、切条以及切块；制坯过程后获得坯体，坯体依次经过干燥、入窑烧制以及冷却后获得制品；原料混合物熟料的组分占比分别为：SiO2占47～56％，Al2O3占37～42％，Fe2O3占3～5.6％，CaO占0.2～0.5％，Mg占0.5～1％，TiO2占0.5～1％，K2O占0.3～0.6％以及Na2O占0.2～0.21％。本发明利用煤泥尾矿渣“废弃物”制耐火砖，填补了国内煤泥尾矿制备黏土质耐火原料技术空白，减少毁田悔林开采，保护土地资源。
Method for preparing refractory bricks from refractory clay clinker
一种耐火黏土熟料制备耐火砖的方法
ZHANG YANBIN (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Refractory clay clinker prepared from coal slime tailings and preparation method thereof
| European Patent Office | 2020