New Delivery for Filtration Diatomite - 4New LC Series Precoating Filtration System – 4New

Main Technical Parameters

Product Function

LC precoating filtration system achieves deep filtration through precoating of filter aid to realize solid-liquid separation, reuse of purified oil and deoiling discharge of filter residue. The filter adopts backwashing regeneration, which has low consumption, less maintenance and does not affect the quality of oil products.

● Technological Process
User dirty oil reflux → magnetic pre separator → high precision pre coating filtration system → temperature control of liquid purification tank → liquid supply system for machine tool

● Filtration Process
The returned dirty oil is first sent to the magnetic separation device to separate ferromagnetic impurities and then flow into the dirty liquid tank.
The dirty liquid is pumped out by the filter pump and sent to the precoating filter cartridge for precision filtration. The filtered clean oil flows into the liquid purification tank.
The oil stored in the clean liquid tank is temperature controlled (cooled or heated), pumped out by liquid supply pumps with different flow and pressure, and sent to each machine tool through overhead liquid supply pipeline.

● Precoating Process
A certain amount of filter aid is added into the mixing tanx by the feeding screw, which is sent to the filter cylinder through the filter pump after mixing.
When the precoating liquid passes through the filter element, the filter aid is continuously accumulated on the surface of the filter screen to form a high-precision filter layer.
When the filter layer meets the requirements, switch the valve to send the dirty liquid to start filtration.
With the accumulation of more and more impurities on the surface of the filter layer, the filtering amount is less and less. After reaching the preset differential pressure or time, the system stops filtering and discharges the waste oil in the barrel into the sump.

● Dehydration Process
The impurities and dirty oil in the sump tank are sent to the dewatering device through the diaphragm pump.
The system uses compressed air to press out the liquid in the cylinder and return to the dirty liquid tank through the one-way valve on the door cover.
After the liquid removal is completed, the pressure of the system is relieved, and the solid falls into the slag receiving truck from the liquid removal drum.

Customer Cases