Shandong Multimedia Filter Manufacturer reminds you that in order to ensure the operation of the follow-up system, multiple filters can be washed in turn, the specific steps are: back washing, air scrubbing, positive washing.

（1）反洗。停运过滤器，切断进水、出水阀门，打开空气排放阀门和反洗排放阀门，开启反洗水泵，缓慢开启反洗进水阀门，调整反洗流量到正常反洗流量200 m3/h左右。并观察反洗出水口是否有无烟煤跑出，以没有无烟煤跑出为标准反洗15分钟。

(1) Backwashing. Shut off the filter, cut off the inlet and outlet valves, open the air discharge valves and backwash discharge valves, open the backwash pump, slowly open the backwash inlet valves, and adjust the backwash flow to about 200 m3/h of the normal backwash flow. And to observe whether there is anthracite running out of the backwash outlet, take no anthracite running out as the standard backwash for 15 minutes.

（2）空气擦洗。反洗之后进行空气擦洗，目的是把附着在滤料上的污物剥落，强化反洗效果。具体操作方法是：反洗结束后，关闭反洗进水阀门，打开底排放水视镜中上部，即滤料无烟煤上10公分处，关闭底排，打开罗茨风机和进气阀门，控制进气强度，具体标准为看上视镜无烟煤层呈上下动作的悬浮状态，不能让滤料剧烈的上下翻腾，以免发生乱层现象。

(2) Air scrubbing. The purpose of air scrubbing after backwashing is to peel off the dirt adhering to the filter material and enhance the backwashing effect. Specific operation methods are as follows: after the end of backwashing, close the backwashing inlet valve, open the bottom drainage water to the upper part of the mirror, that is, 10 cm above the filter material anthracite, close the bottom drain, open the Roots blower and the intake valve, and control the intake intensity. Specific standard is that the upper and lower mirror anthracite seam is suspended in an upward and downward motion, so that the filter material can not flip violently, so as to avoid chaotic formation. Elephants.

擦洗5分钟后，按照之前反洗的方法反洗5分钟，将擦洗污物排出，直反洗水清澈；关闭反洗进水阀和反洗排水阀；

After 5 minutes of scrubbing, wash back for 5 minutes according to the previous method of backwashing, discharging the scrubbing dirt until the backwashing water is clear; close the backwashing inlet valve and backwashing drainage valve;

（3）正洗。正洗是投运前的准备工作，主要是使滤料恢复接触过滤和深层过滤的效果，确保多介质出水水质合格即SDI（污染指数）≤4。具体操作方法为：打开空气排放阀门、进水阀门和正洗排水阀门，开启清水泵，调整进水流量（按正常运行流量正洗），正洗10分钟，测试过滤器出水浊度，小于0.5可进行SDI测试，否则继续正洗；

(3) Washing. Forward washing is the preparatory work before commissioning. It mainly restores the effect of contact filtration and deep filtration to ensure the quality of multi-media effluent, i.e. SDI (pollution index) = 4. Specific operation methods are as follows: open air discharge valve, intake valve and positive washing drainage valve, open clean water pump, adjust intake water flow (according to normal operation flow, positive washing), positive washing for 10 minutes, test the turbidity of filter effluent, less than 0.5 can be SDI test, otherwise continue positive washing;

以上便是今天由山东多介质过滤器厂家为大家整理分享的精彩内容了，大家可以收藏我们的官网：http://www.jnlzsb.com 来了解更多的前沿资讯，谢谢大家！

This is the wonderful content that Shandong Multimedia Filter Factory has organized and shared for you today. You can collect our official website: http://www.jnlzsb.com to learn more frontier information. Thank you!