What’s the role of hydraulic filter press in coal washing wastewater treatment?

The method for coal washing includes wet coal washing and dry beneficiation of coal. Generally speaking, one ton coal will use 2-8 m³ water during washing process. In addition, wastewater generated contains various suspended solids, including pulverized coal, coal, clay and so on. In order to save water and cost, you can further deal with the wastewater. Hydraulic filter press is a kind of efficient equipment for dealing with coal washing wastewater. What’s more, the filtrate can be used for coal washing again.

The hydraulic filter press plays an important role in coal washing wastewater treatment. In terms of coal washing wastewater, you can add flocculating agent, such as polyacrylamide, to improve flocculation effect. The upper layer suspension can be reused directly. The underlying sludge has higher water content. Therefore, you need filter press to reduce water content. Now, let us know about that how hydraulic filter press deal with coal washing wastewater.

1. After adding flocculants and sediment, slurry pump will send wastewater into hydraulic filter press. The solid liquid separation occurs in filter chambers formed by each two filter plates.
2. When the slurry enters filter chamber, solid materials will be obstructed, left on the filter cloth and accumulate. And the filtrate can be reused in coal washing.
3. Gradually, solid liquid materials will fill filter chambers. When the filtration finishes, the automatic plate shifter will pull the filter plates to unload filter cakes.

In a word, hydraulic filter press can efficiently deal with coal washing wastewater. If you want to know more information about BBNEP hydraulic filter press, please contact us.