Axial Movement Examples
Axial Movement Examples
Automatic Backwash Filter Future Prospects – backwash filter – filtration and separation industry
I. Introduction In urban water supply, industrial water pretreatment and cooling water treatment. Can not do without filtering. The traditional filtering methods are based on the sand filter, sand filtration though a traditional full filtering, and in many occasions is also possible, but the use of sand filters, there are many shortcomings: 1, covers an area of large, high equipment costs ; 2, the need for regular replacement of filter media, a large maintenance cost; 3, need to prepare for a used one. Therefore, in many occasions, the majority of users need a filter effect, low cost and easy maintenance of filtration equipment. Many research institutes and manufacturers in recent years developed a number of innovative and practical product, and in many places been widely applied successfully. Environmental Protection Technology Co., Ltd. Beijing Wo Terui which the study of other products and the introduction of foreign advanced technology developed under the premise of a very advanced filtration equipment?? Automatic backwash filter.
II works 1, when the water filters through the coarse filter, fine filter and entered the room, dirt gradually accumulate in fine form a filter cake. So in the fine network of internal and external pressure difference generated when the pressure difference reaches the pre-set value, backwash controller piston hydraulic valve and hydraulic cylinder, water from the chamber by the hydraulic valve hydraulic motor outflow. When the hydraulic valve is opened, the motor room, collectors and the pressure within the nozzle down to very low point. This will lead to small net side (Shimizu), and with relatively thin nozzle within the network side (Cho) a pressure gradient created between. Ladder generated by this pressure wash the net recoil movement of the filter with the nozzle relative area. When the water and dirt through the hydraulic motor will rotate the collector, while the piston cylinder was driven lead collector for axial movement. Nozzle’s axial motion and rotation to sweep the nozzle filter everywhere. Can clean the entire filter. When the filter to flush out the dirt, the pressure difference is gone, rinse the controller close hydraulic valves, piston back to its original location, then the whole system back to its original position to wait for the next cleaning cycle.
2, why the anti-flushing can automatically:
Said before, backwashing is opened by hydraulic valve and hydraulic cylinder piston movement to achieve, and these are passed to the control of backwash controller. Backwash from the filters under the controller of imports and exports pass over the pressure value can be accurately controlled hydraulic valves and hydraulic cylinders, while the controller’s power comes from its own pipeline pressure.
3, when the ongoing anti-flushing water, the nozzle is the net filter backwash every point achieved in this way. Backwash filter when only a small nozzle and between the small local pressure changes, while the collector and the hydraulic cylinder action does not affect normal water supply. Meanwhile, during the backwashing water consumed very little time to flow 300m3 / h. Filter as an example: the backwash flow 35? 40m3 / h, backwash time is 7? 15 seconds, backwash water 80? 160L.
4, filtering precision of 15 microns to 50 microns are fine mesh filter automatically kick curve shows the filtering effect of filter:
50 micron fine mesh filter features:
Can be seen from the coordinates:
Suspended solids removal rate of greater than 50 microns, 100%, suspended solids removal rate of less than 50 microns, 50%. To filter-based filtering of the main guarantees 100% removal of suspended solids larger than 50 microns, and to cake-based auxiliary filter assembly of the advantages of small particles can be removed.
The past few years, automatic backwash filter used in the various water projects across the country, won the praise of users. In the steel industry, petrochemical industry, paper industry, food industry, textile industry, cement industry, mining, precision farming, power plant and others have successfully applied.
Automatic backwash filter compared with conventional filtration equipment with small footprint, easy installation, automatic operation, not-for-filter, maintenance free, in the cleaning process does not affect the water supply, energy saving, low cost and effective filtering is good. Automatic backwash filter can achieve a modest investment to achieve the same or better improvement of water quality objectives and achieve significant economic and social benefits. Automatic Backwash Filter promising prospects.
About the Author
I am a professional editor from China Product, and my work is to promote a free online trade platform.
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