China Automatic Backwash Filter Systems

Features
The filter reducer with NRV-type gear, shell made of high quality aluminum alloy structure, good heat dissipation, low noise, light weight, carrying capacity.
Sealing device uses CV62.1-85 Standard Enhanced PTFE double seal structure, reliable sealing performance, long life, strong pressure.
Top with exhaust valve, compact headstock sensitive.
Differential pressure control system uses D520/7DD adjustable switching differential pressure controller, signal feedback correct and sensitive.
Multiple filter structure, the effective filter area, low pressure drop, high efficiency backwash.
Filter flower plate made of stainless steel, with backwash sucker working interface mirror treatment.
Backwash sucker PTFE structure and the backwash from the whole body, to ensure that sucker with a long-term sealing element flower board, enhanced backwash effect.
Electrical control system adopts PLC programmable controller, the cleaning mode differential pressure control, timing control and manual control in parallel mode, a timed positioning mold cleaning mode
Type, backwash flow is small, thorough backwashing.
Backwashing continuous flow.
Applications
Industrial wastewater
Circulating water filtration
Emulsion reproduction
Oil filtration treatment
metallurgical industry casting water system
Blast furnace with high pressure water mill water systems
Structural principle
The filter consists of housing, multi-filter, backwash mechanism, electrical control system, power plant, electric discharge valve and pressure control system. Element within the housing cavity into the tubesheet, the lower two chambers, the upper chamber is equipped with a plurality of filters, so that full use of the space, the filter significantly reduced the volume of the cavity is mounted suction backwash. Work, turbid liquid through the inlet into the filter, but also by flower plate hole into the filter cavity is larger than the filter pore impurities closure, net fluid through the filter pores to reach the upper chamber from the outlet port.
When the filter surface impurities accumulate in the filter increases the pressure drop caused to the set value, or the timer reaches the preset time, the electric control system as a signal to drive the backwash mechanism. When the filter backwash suction Handicap and imports are right, the drain valve opens, the system pressure relief discharge, suction cup with filter inside the emergence of a relative pressure lower than the pressure outside the vacuum filter area, forcing some circulating fluid flows from the outside of the filter element the inside. Adsorbed on the particulate filter impurities on the wall with the sucking sewage flow into the inside and from the sewage discharge valve. Special design of the filter to filter an ejection effect, any impurities will be washed away. When the pressure drop back to normal or timer setting time has elapsed, the motor stops running, electric discharge valve closed. Throughout the process, the flow continuous flow of backwash liquid consumption less, to achieve a continuous, automated production.
Technical parameters
Maximum flow3000m3/hBy filtration and impurities may consult, provide the most appropriate modelMinimum Operating Pressure0.4MPa(g) Maximum working pressure1.6MPa(g)Special requirements can be customizedExport PathND50-ND700Flange Standard HG20592-97, special requirements can be customizedMaximum working temperature80º CSpecial requirements can be customizedFiltration25-3000um Filter MaterialCan be customized according to requirements 304, 316 or 316L stainless steel Equipment MaterialCan be customized according to requirements 304, 316, 316 L stainless steel or Motor Power0.37-0.75Kw Supply Voltage380V, 50Hz, Three-phase Backwash flowLess than 1-2% of the total flow Backwash time60 secondsAccording to process requirements set their ownBackwashing pressure0.5kg/cm²According to process requirements set their own