For an industrial equipment, it needs cleaning and maintenance, but the cleaning and maintenance time and mode of various accessories of the equipment are different. Multi media filter is an important part of industrial equipment. The filter material of Shandong multi-media filter must ensure that the chemical properties are very stable.

但是不同顆粒大小會體現出不同的密度,例如煙煤相對密度為1.4-1.6,粒徑為0.8-1.8mm等.想讓裝置持續穩定運行,就要需要用多個過濾器進行不斷衝洗,很多人都不知道多介質過濾器反洗的具體步驟,這裏主要介紹對於多介質過濾器的反洗步驟具體有:反洗,空氣擦洗,正洗.

However, different particle sizes will reflect different densities. For example, the relative density of bituminous coal is 1.4-1.6, and the particle size is 0.8-1.8mm. In order to ensure the continuous and stable operation of the unit, it is necessary to use multiple filters for continuous flushing. Many people do not know the specific steps of multi-media filter backwashing. Here, the backwashing steps of multi-media filter are mainly introduced, including backwashing, air scrubbing and forward washing

1、多介質過濾器反洗:將過濾器裝置停止,然後將過濾器暫停,切斷進水然後將反洗水泵打開,調整反洗流量到正常反洗流量每小時二百立方米左右.

1. Backwashing of multi-media filter: stop the filter device, then suspend the filter, cut off the water inlet, then turn on the backwashing water pump, and adjust the backwashing flow to the normal backwashing flow of about 200m3 per hour

2、多介質過濾器空氣擦洗:通過反洗之後將空氣擦洗,就是想把過濾器上的雜質去除掉,這樣能增加反洗效果,當反洗結束後,就將其中的閥門關閉,以免出現亂層現象,經過五分鍾反洗後,將其中的汙染物雜質去除掉,知道反洗水清澈,再將反洗排水閥關閉.

2. Air scrubbing of multi-media filter: scrubbing the air after backwashing is to remove the impurities on the filter, which can increase the backwashing effect. When the backwashing is completed, close the valve to avoid layer disorder. After five minutes of backwashing, remove the pollutants and impurities in the filter, know that the backwashing water is clear, and then close the backwashing drain valve

3、多介質過濾器正洗:正洗是準備正常運行前,將其中的濾料進行多次過濾,以此來確保出水水質合格即SDI(汙染指數)小於

3. Forward washing of multi-media filter: forward washing is to filter the filter material several times before preparing for normal operation, so as to ensure that the effluent quality is qualified, that is, the SDI (pollution index) is less than

4.  但是如果原水是井水的話,就得安裝其他類型過濾器,因為水中有大量的鐵哦錳等變價金屬雜質.如果使用地表水做原水,則混凝和多介質過濾器都是必要的.

4. However, if the raw water is well water, other types of filters must be installed, because there are a lot of variable valence metal impurities such as iron, manganese and so on. If surface water is used as raw water, coagulation and multi-media filters are necessary