The oil recovery filter is extracted from all kinds of mineral separation. The treatment of the oil recovery filter has become an urgent problem. Return oil filter after extraction, generally carried out by leaching or concentration of flotation means to replace the imported filter pump currently used in most of the remaining part of the tailings in tailings dam settlement play, Pingyuan Filter Hydraulic Co. Ltd. of Xinxiang City, this is the tail part of me, the size is generally above 19%, some even more fine. Therefore, the filtration treatment of tailings has the following advantages:

1, the filter press processed to facilitate the load of gypsum, at the same time reduce traffic, save a lot of manpower and material resources.

2, the treated plaster can be sold directly, and the economic benefit is considerable.

3, the recycling process of filtrate water is widely used, which greatly saves the cost.

4, no more pit storage, the cost of land and maintenance is saved.

5, in the course of transportation, there is no leakage of slurry protection environment.

6, no storage, to avoid pollution of the surrounding environment and water.

7, a large amount of water can be recycled by water shortage, more important today.