| 摘要 |
<p>The invention relates to a method of processing a slurry containing rock, whereby water is withdrawn from the slurry by adding alkaline earth metal oxide characterized in that the slurry containing rock is a slurry containing flotation rock with a rock concentration of at least 300 kg/m<3>, and that calcium oxide in such a quantity is added as such, that the product obtained on the one side has a moisture content less than 25%, and on the other hand a CaO-modulus greater than 1.8. If said product has a moisture content of 15-25%, one process product is obtained by petrification. If said product has a moisture content of 2-15% and is treated thermally, another process product is cement or hydraulic lime. In order to enlarge the quantity of rock in the process product at least part of the product is subjected to such a thermal treatment, that a mixture of rock and quick lime is formed, and that this mixture is added to a slurry containing rock, and which is to be dehydrated. Installation of winning minerals, particularly coal, having means for seperating the minerals from a slurry containing rock, particularly flotation rock, is characterized by a unit for adding quick lime to the slurry.</p> |
