Patent ID: 9108808
Filing Date: 2015-08-18
Classification: B01D,B01J,B65G,C10J

Abstract:
1. A method for transferring a granular substance of an upper system to a lower system by using a lock hopper comprising: a lock hopper A having a hopper A a lock hopper B having a hopper B a control section C controlling the opening and closing of each of the entrance valves A when the granular substance is received into the lock hopper A from the upper system, the gas in the hopper A when the granular substance is received into the lock hopper B from the upper system, the gas in the hopper B a state (1) in which the inlet valve A a state (2) in which the inlet valve A wherein, in each hopper, a step of filling the granular substance of the upper system in the hopper and a step of discharging the granular substance filled in the hopper to the lower system are alternated repeatedly by controlling the control section C, and further wherein, in the step of discharging the granular substance filled in the hopper to the lower system, there is supplied, into the hopper in which the granular substance is being discharged to the lower system, a gas of a volume at least corresponding to the volume of the granular substance to be discharged to the lower system.