METHOD AND APPARATUS FOR FORCING GAS-SOLID TWO-PHASE SUBSTANCE

摘要

A method and apparatus for forcing a gas-solid two-phase substance are provided in which the amount of gas returning to the ordinary-pressure side can be reduced to reduce the consumption of power necessary for gas compression. A solid raw material (a) stored at ordinary pressure is forced into a high-pressure vessel via a switch valve (4) in the following manner. The raw material (a) is introduced into a rotary valve element (7) disposed in the switch valve (4). Thereafter, an entrained gas (c) present in the interstices of the raw material (a) is replaced with an incompressible fluid (d).