发明名称 |
FOERFARANDE VID FRAMSTAELLNING AV CEMENT |
摘要 |
A novel method for manufacturing cement utilizing crushed refuse. The method comprises a first step of preparing a homogeneous powder mixture from a majority of crushed refuse substantially free of metal constituents and a minority of at least one first mineral material containing calcium oxide in the free or combined state. In a second step, the powder mixture is granulated under pressure. A third step comprises heat treating the granules at a temperature between 130 DEG C. and 230 DEG C. for a length of time sufficient to bring the water content of the granules to between about 0.1 and 1.0% by weight. The third step produces a refuse product. A fourth step comprises mixing the refuse product with a first starting mixture and firing the resulting clinker mixture in a kiln, producing a clinker. In the last step, gypsum is added to the clinker and the resulting cement mixture is crushed. |
申请公布号 |
SE466915(B) |
申请公布日期 |
1992.04.27 |
申请号 |
SE19880000840 |
申请日期 |
1988.03.09 |
申请人 |
CATREL SA SOCIETE D'ETUDES ET D'APPLICATIONS INDUSTRIELLE |
发明人 |
F * TRIVINO VAZQUEZ;R-J * CLENIN |
分类号 |
C04B7/24;C04B7/40;C04B7/44 |
主分类号 |
C04B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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