FZD series automatic backwash filter

FZD series automatic backwash filter (hereinafter referred to as FZD filter), is nine for the company independent research and development of high efficiency filter backwash system, internal integration metal slit filter more yuan, unique backwash derrick will back flush filter yuan by group. FZD filter as a high-end self-cleaning filter, is designed for high quality and reliability as the most important factor of customer design, use of the world's top quality key components (such as the filter element, deceleration machine, automatic cleaning control system, etc.) of elaborate design.

FZD filter has the difference between ordinary net type self-cleaning filter prominent advantages, USES the extremely strong and durable type of filter element, the cracks in the surface of the uniform gap height, intercept ability strong, big filter area, single fine filtration of low surface velocity, large single flow to 8000 m3 / h, backwash efficiency thoroughly, can filter bad water quality, such as sludge containing impurities, soft sticky impurity, high content of impurities, a small amount of fiber impurities.

FZD filter to filter out all kinds of water and low viscosity liquid (such as sea water cooling water, machining) solid impurities, in order to meet the system operation and the process for liquid to the cleanliness requirements, also can be used to protect critical equipment downstream from particle plugging, wear, or scale, improving the efficiency of the key equipment and life. FZD filter is fully automatic on-line continuous filtration, which reduces the cost of shutdown, maintenance and human cost. It is an advanced solution for water and water-based liquid filtration.

FZD filter precision of 50-2000 micron, import and export dimensions 2"-26". FZD filters are subdivided into two sub-series, namely, internal backwash and external backwash. FZD1200 series is a large filter area filter suitable for large flow filtration. FZD300/FZD400 series are small filter area filters suitable for small flow filtration. The FZD800 series is designed for coarse precision and large flow occasions.

Liquid import inflows from filter, part of the liquid directly from the lower filter element into another part of the shunt from the middle of enter the filter at the top, and then from above filter yuan inflows, liquid flow from filter yuan opening up and down at the same time, through inner surface in export collection filter yuan outflow. Is greater than the filtering precision of the impurity particles were intercepted in the lining surface of the filter element, accumulated into cake, pressure difference between the import and export increases gradually, show that filter cake reaches a certain thickness, the filtration flux decreases.

当过滤器内杂质积聚在滤芯表面达到设定压差或时间，自清洗动作启动，减速电机驱动反冲洗转臂对准一支滤元，滤元上端被封住，下端连接到清洗吸嘴，打开反冲洗阀，将滤元与排污管接通，滤元外侧与排污口之间的压差驱使滤出清液反向冲洗滤元内表面滤饼，排入排污管道。一支滤元反冲洗完毕后，关闭反冲洗阀，清洗转臂对准下一支滤元进行反冲洗。所有滤元被逐支反冲洗后，物料不会断流，反洗耗水量少，实现了连续化，自动化生产，整个过程完成。

Deceleration motor driven positioning plate are installed on a shaft and the cleaning jib, distribution of each location hole positioning plate correspond completely with the yuan per filters, cleaning jib with one hole positioning, positioning hole arrived at induction channel positioning sensors, positioning sensor output signal to rotate the motor stopped, cleaning derrick has a filter element, the flush valve open to close after several seconds, automatic cleaning, machine work, under a positioning hole conduction will once again positioning sensors, motor stop cleaning after a filter element.

• Automatic continuous online filtering, continuous flow during backwashing, no need for system shutdown, reduce downtime and maintenance costs.
• It adopts the gap type high performance filter, which has high precision, large effective filtering area, small pressure drop and high backwash efficiency.
• When the filter element is completely corresponding, open the blow-down valve backwash, the anti-flushing intensity is high, the effect is good, the time is short, save water.
• The filter core is 304/316l stainless steel, and the mirror is processed with the backwash suction surface.
• The anti-flush suction cup is used to strengthen the structure of polytetrafluoroethylene (ptfe) and the anti-washing suction cup, which can ensure the long effect sealing of the suction cup and the filter core, and enhance the anti-flushing effect.
• It is highly integrated and requires no large number of automatic valves, fittings, seals, high reliability and low operating cost.
• The automatic control system is highly reliable, the interface is intuitive and easy to operate, and the filter can operate efficiently according to the actual working condition.
• The differential pressure sampling section adopts adjustable differential pressure controller, and the signal feedback is correct.
• S electrical control part can adopt PLC programmable controller, the cleaning mode using differential pressure control, timing control and manual control in parallel mode, the cleaning procedure using timing positioning mode, the backwashing water consumption is small, clean thoroughly.

• Applicable fields: water treatment, paper making, metal processing, steel (emulsion), refrigeration system, agricultural irrigation, etc.
• S applicable liquid type: raw water, river water, groundwater and sea water, lake water, process circulating water, circulating cooling water, high and low pressure spray water, heat, water, water sealing, bearing cooling water, cooling tower water, high and low pressure water coolant, oil well water injection, and machining, clean water, etc.