AUTOMATIC PARTICLE SIZE BLEND CONTROL DEVICE

• Main Authors: TAKESHIMA HIROYUKI, YOSHIKANE TORU, OHASHI TAKAHIKO, NAKANISHI HIROMITSU
• Format: Patent
• Language: English
• Published: 09.07.1988
• Subjects: MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER; TRANSPORTING; WORKING CEMENT, CLAY, OR STONE

PURPOSE:To modify metering and blending ratio automatically by finding the actual composite particle size curve basing on the aggregate composite ratio in accordance with metering and blending ratio of each material and checking up the same with a designed composite particle size curve stored previously in an arithmetic unit. CONSTITUTION:An arithmetic unit Z finds the actual composite particle size curve as a mixture at the time of operation basing on a signal and the set metering and blending ratio concerning a unit of aggregate as a mixture, which is checked up with a designed composite particle curve input previously. In case any deviation beyond the required range in any of the screen openings in use is clarified, a modified value of designed metering and blending ratio to correct the actual composite particle size curve with the deviation kept within the given range is obtained by the operation basing on the particle size analysis results of each aggregate. A signal of the modified set metering value based on the results is transmitted to (b), and the set metering and blending ratio of each aggregate is modified.