Now let Jinan Lianzhong heat supply equipment factory take you to understand the operation mode of Shandong multi-media filter!
Multi media filter is also called mechanical filter (now many people call quartz sand filter as multi-media filter, because quartz sand particle size is different, divided into 2-3 specifications). Mechanical filter, with many aliases, is actually the same filter. In water treatment process, it is the most commonly used mechanical filter equipment, because the filter material price is low, environmental protection, filtering effect So quartz sand filter has been fully used in water treatment.
Why should the multi-media filter be backwashed? First of all, we start from the function of the multi-media filter, which mainly filters and intercepts the impurities such as suspended solids, sediment and organic matters in the water. The filtration principle is mainly intercepted by quartz sand, so after the multi-media filter works for a period of time, there are many fine particles between the gaps of sand, such as mud, organic matter and other impurities. If it is not backwashed, the impurities such as sediment intercepted in the filter tank will accumulate more and more, which will affect the trafficability of the source water, reduce the outlet pressure, reduce the filtration flow, not only waste the precious energy (electricity, power provided by the pump), but also the outlet water quality is not up to the standard. Therefore, the backwashing work must be carried out after the multi-media filter is used for a period of time.
There are two backwashing methods for multi-media filter, one is air-water backwashing, the other is water backwashing.
Air water backwashing: the air bubble and quartz sand filter material are used to rub against each other. The friction between the particles of quartz sand filter material is also used, that is, the friction between quartz sand filter material and water is used. The interaction of the four increases the backwashing effect to the maximum extent, so that the quartz sand filter material after backwashing can be used normally Use. Advantages: short backwashing time and less water consumption. Therefore, the recommended backwashing method of Gongquan Water Treatment Technology Co., Ltd. is: steam water backwashing
The above is an introduction to the operation form of multi-media filter by Jinan Lianzhong heating equipment plant. I hope it can help you. For more information, please click