GLASS BURDEN LUMPING COMPONENT DOSING APPARATUS Russian patent published in 1994 - IPC

FIELD: production of glass burden. SUBSTANCE: dosing auger of feeder 3 is mounted as that screw 8 of small diameter is disposed in remaining volume of material 10. The remaining volume of material 10 is defined by walls of discharge throat 7 of weight doser 1, first coil of screw 9 of large diameter and is defined from top by surface of angle of repose of material 10. Discharge window 4 is formed trapezium- shaped, with window side faced towards auger having an angle of 70-90 deg. with respect to surface of large-diameter screw 9. Discharge process is turned from discrete into continuous process, dose is lengthened and precision of dosage is immensely increased by reduced quantity of material discharged per time unit. Simultaneously compaction of material in discharge place (when the material is discharged on fixed support) is eliminated by reduced weight of material falling per time unit. Moreover, material 10 is discharged not in one point, but is distributed along a predetermined length of path. Processes recited are characterized not only by precise discharge, but also by approximated discharge to facilitate smooth dosage of material. Upon completion of dose distribution of material 10 on conveyor 6 a command for switching-off discharge auger feeder 3 is delivered in accordance with control system signal. Doser 1 has a predetermined portion of material 10 left there. This portion functions as variable container, i. e. correction volume for next discharge process. EFFECT: reduced compaction of material in auger and at the site of discharge, eliminated lumping of material, when it is prepared for mixing and, as a result, obtaining of homogeneous glass burden, increased precision of dosage due to the usage of screws of different diameters. 2 cl, 7 dwg