METHOD FOR CONTROL OF GRAIN DRYING PROCESS AND GRAIN DRIER UNLOADING DEVICE FOR ITS REALIZATION Russian patent published in 2003 - IPC

FIELD: control of drying processes of loose materials, applicable in agriculture for control of grain drying processes and other loose materials in driers with a gravitation moving layer, for example, in shaft, column, etc. ones. SUBSTANCE: the method consists in measurement of moisture contents of grain in the MxN zones of the lower horizontal section of the drying chamber, the measured values are compared with the preset ones, and the capacities of the grain drier unloading device are compared with in the respective MxN zones. The device has drying chamber 1 and unloading device 2 of the rotor type, in which M rotors 4 in length are made of N sub-sections 6 assembled on common rotor shaft 7 in a fixed position. Each section is provided with built-in electric motor 8 with external rotating part 9 (for a example, a step motor). The motor windings are fastened on common shaft 7 in a fixed position and connected to control unit 1, and motor movable part 9 is secured on shaft 7 by means of bearings 13, and two disks 14 and K+1 of partitions 15 are installed on it, they divide rotor section 6 in its cross-sections into K sectors. Rotors 4 with a small gap are installed along the outlet windows of chute box 3, whose chutes by means of partitions 16 are also divided into N sub-sections. EFFECT: enhanced accuracy of control of the grain drying process, reduced power consumption and enhanced capacity of the drying equipment. 2 cl, 1 dwg