Means for controlling feed of particulate material into airlift pipe

摘要: To limit the amount of solid particulate matter fed into an airlift pipeline from, especially, a suction nozzle device, density suspension passing from to system is measured. If measured above predetermined value, proportion suspended material removed prior pipe. The moving determined by radiation-type densitometer located upstream can also be directly balance beam or weighing arrangement connected pivotable length Where fine particles are present that not considered in measurement, differential measurement obtained second liquid which large have been screened.