A METHOD FOR SUPPRESSED AIR CORE IN A CYLONE AND A CYLONE WITH SUPPRESSED AIR CORE

摘要

Accordingly, there is provided a method for suppressing air core in a cyclone and performing a particle separation test in a cyclone having a suppressed air core. The method comprising: •connecting a cyclone to a water /slurry inlet through which water /slurry is introduced into the cyclone at the desired flow rate, the flow rate being measured by adapting a rotameter, •pumping the slurry/water from a slurry tank having provisions for bypass, •providing control valves at the overflow and the underflow outlets of the cyclone to vary the flow rates, •providing pressure tapping at the inlet, overflow and underflow, •connecting the pressure tapping to a series of manometers which can measure the pressure drop across the cyclone, •setting the inlet flow rate to the desired value, and varying the underflow/overflow rate in a such a way so as to get a good air core, •measuring the inlet and the underflow rate, •stopping the flow to the cyclone, •making an insertion in the centre/bottom of the cyclone body for inserting a rod,