| 摘要 |
<p>1455844 Mixing apparatus B P B INDUSTRIES 29 Jan 1974 [1 Feb 1973 7 Jan 1974] 5144/73 and 005-89/74 Heading B1C [Also in Division Cl] Apparatus, for use in the production of porous gypsum granules by suspending powdered gypsum plaster in a stable aqueous foam and agitating until granules are formed, clomprises a trough 12 along which the suspension of gypsum plaster is passed, and a series of agitators 15 spaced along the trough and disposed to agitate continuously the suspension being passed along the trough. The trough may be part of a continuously moving conveyor belt and the agitators may be rotary whisks or blades adapted to cover in their movement .the entire width of the trough.</p> |
