| 摘要 |
<p>PCT No. PCT/GB96/00814 Sec. 371 Date Aug. 26, 1997 Sec. 102(e) Date Aug. 26, 1997 PCT Filed Apr. 2, 1996 PCT Pub. No. WO96/31265 PCT Pub. Date Oct. 10, 1996A plant for conditioning and dewatering a suspension comprises a belt press, centrifuge or other continuous dewatering apparatus (3), a flow-line (1) leading to the dewatering apparatus, a pump (2) for causing suspension to flow along the line (1), means (5-9) for dosing conditioner into he suspension at a dosing point (4), means (12) for measuring density D, means (10) for measuring the flow rate V and thereby for calculating the dry mass per unit time M, and control means (16, 17, 18) for automatically dosing a mount A of conditioner into the suspension where A-kM and k is a constant and for automatically varying V in response to D and for automatically varying the constant k in response to D.</p> |
