板框式过滤机过滤常数测定研究

以碳酸钙溶液为原料,测取不同过滤压力(范围0.05 MPa～0.2 MPa)下板框式过滤机恒压过滤常数K和qe、滤饼的压缩性指数s和物料常数k.研究原料质量分数、原料温度、过滤面积、过滤压力对恒压过滤常数的影响.结果表明,相同质量分数、压力,不同过滤面积下,过滤常数随过滤面积增大而增大;相同过滤面积、压力,不同质量分数下,过滤常数随过滤质量分数增大而减小;并得出相应的测定方法及数据处理方案.

STUDY ON FILTER CONSTANTS OF PLATE AND FRAME TYPE FILTER

The constant pressure filtration constant K and qe,and cake compression index s and material constants k were measured under different filtration pressure ranging from 0.05 MPa to 0.2 MPa of plate and frame type filter with calcium carbonate as raw material.The effect of raw materials concentration,raw material temperature,filtration area,filtration pressure on the constant pressure filtration constant was studied.The results showed that the same concentration,pressure,under different filter area,filter constant increases with the filter area;the same filter area,pressure,different concentrations,filter with the filter constant concentration decreases;and reach the corresponding determination and data processing programs.