DEVICE FOR PNEUMATIC TRANSPORTATION OF POWDER-LIKE CALCIUM CARBONATE INTO HIGH-TEMPERATURE GAUGE-PRESSURE GAS UNIT OF CATALYTIC CRACKING PLANT Russian patent published in 2001 - IPC

FIELD: pneumatic transportation of materials. SUBSTANCE: device has a hopper with aerating arrangement communicating through discharge hole with gate, gas-feed main line with aerating arrangement gas lines, transportation pipeline and ejector. The device is furnished with drive meter whose outlet branch pipe is connected through ball valve with ejector and vacuum-and-pressure gauge, hose filter whose inlet branch pipe is connected with hopper and outlet branch pipe with exhaust fan, two pressure gauges one of which is connected with gas-feed main line and other is connected with transportation pipeline in place of its connection with ejector. EFFECT: improved ecological safety and economical efficiency. 8 cl, 5 dwg