LLW Horizontal spiral filter Series LLW

Working principle of LLW Horizontal Decanter 

The suspension will be fed into rotor drum via feed pipe firstly through the filtering cavity between the rotor drum and screw and then cone bottom of the rotor drum. Under effect of centrifugal force, liquid content of the suspension will be filtered out via the filter net in the rotor drum while the solid content retained in the drum which will be forced to move from smaller end of the drum to the larger end under effect of the centrifugal force as well as differential between the screw and rotor drum. As rotating diameter of the drum increases, the centrifugal force increases, which reduces moisture content of the solid (which is high at beginning) to a level as low as possible before discharge, achieving automatic continuous process of liquid/solid separation. 

The unit is designed with washing pipe for rinsing and purification of filtering cake by end of filtration process, the thinner the filtering layer is, the better effect of rinsing and the lower consumption of detergent would be. 

For materials that are prone to secondary crystallization, steam pipes can be configured to clean the crystals out of the inner cavity at high temperature in preset frequency. 

LLW horizontal decanter is especially suitable for processing material of appropriate size as it’s capable of continuous filtration in a highly efficient way and allows continuous feed and discharge process.