DEVICE AND METHOD FOR PROCESSING POWDER AND GRANULAR MATERIAL

摘要

A powder and granular material processing device comprising a pair of compression rollers (38a, 38b) installed in parallel with each other, wherein powder and granular material is fed to a powder and granular material introducing and compressing part (50) formed between the rollers (38a, 38b) so as to form its compressively formed product, a powder and granular material force-feed means (20) is installed on the front stage of the rollers (38a, 38b), the force-feed means (20) having a deaerating barrel (24) and pre-pressing the powder and granular material supplied between the rollers (38a, 38b), a side seal (37) is disposed on the side of the rollers (38a, 38b) opposedly to the rollers (38a, 38b) and apart by a clearance (72) from the rollers (38a, 38b), whereby the powder and granular material comes into the clearance (72) while the powder and granular material is compressively formed so as to form a sealed layer between the side surfaces of the compression rollers (38a, 38b) and the side seal (37) for sealing the powder and granular material introducing and compressing part (50), a shearing device (75) is disposed on the rear stage of the rollers (38a, 38b) so as to shear the compressively formed product formed by the rollers (38a, 38b), and the torque of the shearing device (75) is detected by a torque sensor (78) and, based on the detected torque, the compression rollers (38a, 38b) and a powder and granular material transfer means (17) are controlled.