B - Operations – Transporting – 28 – C
Patent
B - Operations, Transporting
28
C
259/7
B28C 7/04 (2006.01) B28C 5/00 (2006.01)
Patent
CA 1300593
CEMENT SLURRY BATCHER APPARATUS AND PROCESS ABSTRACT A novel process and apparatus for discharging, on a batch basis, cement and water as a slurry or in the form of separate discharges of slurry and cement, where the materials so discharged contain a predetermined amount of water and a predetermined amount of cement, is disclosed. A major quantity of water and all or a major quantity of the cement is mixed in a slurry mixer to produce a primary slurry. A major portion of the primary slurry is then discharged, and the remaining slurry mixed with the remaining quantity of water for discharge as a second slurry. A minor portion of the cement can optionally be added to a dry chamber for discharge therefrom. The slurry mixer and dry chamber, which are substantially closed systems, can be vented together, and then vented to atmosphere, so that air in the slurry mixer which is displaced during water and cement charging flows through the dry chamber. While the normal discharge is from the slurry mixer in slurry form, in situations where the discharge is to be mixed with wet aggregate having a known water content, a minor portion of the predetermined amount of cement required for a concrete mix can be charged in the dry chamber so that it can be separately discharged with the discharge of the slurry from the mixer. The predetermined amount of water and cement for a given batch can be determined by weighing the amount of water and cement separately introduced into the slurry mixer, and in cases where the dry chamber is charged with cement, the weight of cement added to it.
574245
Alslur Enterprises Ltd.
Perley-Robertson Hill & Mcdougall Llp
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