| 摘要 |
<p>An improvement is disclosed applicable to systems where a mineral ore, such as a crude kaolin is introduced into a high shear, high energy mixing device with a suspending fluid such as water and dispersing agents added to the same mixing device at controlled rates to produce a suspension with a solid content not more than 72 % by weight. Heat is applied to the fluids in or before entering the mixing zone of the mixer to raise the temperature of the suspension by a least 10 °C. The heat may be added directly or indirectly. In the figure the material (4) is delivered by a conveyor belt (13) so that it falls into the blunger (6) where a rotor (14) effects makedown of the crude material in the presence of the aqueous components. Water (1) is provided through an input line (17) and a dispersing agent (3) is provided independently through line (16). Steam (22) is injected directly into the mixing chamber at the blunger via a conduit (20) which enters into the bottom of the mixing chamber (24).</p> |
