Hydraulic Support Back Flushing Liquid Recovery And Return Liquid Filtration System

Hydraulic support is one of the important coal mining equipment,and emulsion clealiness is a guarantee of the normal operation of the hydraulic support is very important factor.Emulsion of pollution will affect the normal work of the hydraulic system and accelerate the element wear and tear, even will result in equipment failure.Support back flush filter emissions of pollutants in hydraulic system is to rely on the system spraygun washing function of the filter cartridge will be trapped in the pollutants discharged together with the emulsion on the surface of the filter to the working face, so although the pollutants in the system for the clearance, but the discharge of the emulsion will cause serious pollution to groundwater resources and environment, this is because the current widespread use of emulsion and synthetic medium of liquid, concentrate are decomposition.This project adopts the closed drainage system will stand high pressure filter and automatic backwash filter backwash unified interface to main back into liquid pipe, the discharge of emulsion recycling, and recycling. In returning the fluid pipeline installation level liquid filter1and2back to liquid filter2, USES the filtering step by step. This article first has carried on the design to system, then the system design calculation and hydraulic integrated design, filter station, the three-dimensional structure model is established.Back flush liquid recycling and secondary filter, that is, to avoid the direct emissions of emulsion, reduces the consumption of emulsified oil, at the same time after the secondary filter of emulsion ensures the cleanliness level of support hydraulic system, provides the guarantee to support the reliable operation of the hydraulic system, more important is to avoid the emulsion to the pollution of groundwater resources, is one of the important technical means to protect the safety of the mining area water resources.Project one year return to east coal group in the emulsified oil consumption decreased significantly, the failure rate of all kinds of valve parts and its consumption significantly reduced, achieved good social and economic benefits. The amount of emulsion direct emissions, reduced the emulsion to the pollution of the groundwater resources in the mining area, fill the blank of the polluted groundwater resources without monitoring.