SEQUENCE CONTROL OF VERTICAL MOVEMENTS OF SLURRY,申请号AU19830010685-传众专利搜索

SEQUENCE CONTROL OF VERTICAL MOVEMENTS OF SLURRY

申请公布号：AU1068583(A)

申请号：AU19830010685

申请日期：1983.01.21

申请公布日期：1983.09.01

申请人：

CONOCO INC.

发明人：NAME NOT GIVEN

分类号：B65G53/30

主分类号：B65G53/30

摘要：A method and apparatus for sequence control of vertical movement of slurried particulates from a lower level to the upper levels, more particularly a vertical hoist system for movement of slurry from a subterranean mine area upward through an earthen or cased borehole to a surface station. The vertical pump system includes series-connected pumps having variable speed capability to transport slurry particulate from an underground sump upward to a surface surge tank or other repository. The logic sequence system exercises control over valving sequence between the underground pumps and the vertical borehole in order to control slurry surges during start-up, shut-down and emergency dump operations. Thus, the pump input to the vertical conduit utilizes energy dissipator units as selectively controlled by automated block and by-pass valves to control flow of fluids from the pumps upward through the vertical conduit. Selective control of the dissipator units and valving enable critical start-up, shut-down and the emergency shut-down operations and this is effected by particular sequence control.