METHOD FOR DECREASING OR INCREASING CONCENTRATION OF SOLID PARTICLE IN SOLID-LIQUID MIXED PHASE FLUID INCORPORATING SOLID PARTICLE AND METHOD FOR SEPARATING SOLID PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for lowering the concentration of solid particle in solid-liquid mixed phase fluid with a simple constitution, and a constitution of the method of separating the solid particle with a filter on the basis of the method. ;SOLUTION: In this method, the solid-liquid mixed phase fluid is distributed to a pipe which is plurally branched in an intermediate part, with respect to the solid-liquid mixed phase fluid in a specified branched pipe, the flow rate is set smaller than the average value of flow rate of the total solid-liquid mixed phase fluid before the distributing and, thereby, the concentration of solid particle in the solid-liquid mixed phase fluid is decreased or the flow rate is set larger than the average value and, thereby, the concentration of solid particle in the solid-liquid mixed phase fluid is increased. Further in this method, the solid particle in the solid-liquid mixed phase fluid distributed from the pipe which is decreased in concentration of the solid particle is separated by the filter on the basis of a method decreasing the concentration of solid particle among the respective methods, at the same time, the other distributed solid-liquid mixed phase fluid which does not separate the solid particle is circulated again to the pipe side before the distributing, based thereon, the solid particle is separated from solid-liquid mixed phase fluid and, thereby, the frequency of exchange of filter and the quantity of disposal of the filter can be decreased.;COPYRIGHT: (C)2003,JPO