Coal Slurry filter is factory recovery, closed water circuit critical equipment, and promote the continuous improvement of filter updates, the emergence of new high-efficiency filter. With China's rapid development of mechanized mining technology, coal preparation plant type growing, coal quality deterioration, increased slime question came. Slime water treatment equipment filter checks put a higher demand.

First, the swift diaphragm filter press China's first development swift diaphragm filter the late 1990s the market for KM quick membrane filter press, it is the use of insoluble solid granule filter media is discrete from liquid separated plus filter device. Compared with the previous ordinary chamber filter press, its advantages are as follows :( a) multi-port feed, feed speed, uniform fabric, well into the cake effect; (ii) the use of primary and synchronous pressed from Multicylinder and control technology, Plates reasonable force uniform, edge sealing, when the high pressure, high flow, fast into the pulp does not paste; (c) a unique hydraulic drive, grouping opening and closing, ring chain opened Plates group and filter cloth dislocation unloading mechanism to achieve a rapid discharge; dewatering process using the second diaphragm, low cake moisture; and (iv) develop a filtrate flow rate detection device, the filter chamber filling good, to achieve a pressure filtration system operation automate the whole process.

Second, quick - drying drying filter press filter with quick - basic filtering mechanism by a spacer membrane filter plate placed in hot and dry plates, complete suspensions and mechanical filtration into the cake in the filter chamber; then enter Hot filtration dehydration stage, namely through the dry plate fluid heat medium (steam or thermal oil) while the drain passage evacuated and mechanical compression cake with a septum, in a short time near the dried cake plate capillary conduction due to heat and evaporate water, the steam generated by the rapid expansion, driven farther away from the drying board capillary water in liquid form cake cake emission surface, to be removed.

The relation of coal moisture and heat water for every 1% increase 4118kJ heat can reduce warehousing and storage of water after the slime not block positions, thus eliminating the problem of environmental pollution caused by open storage. Quick - drying filter mechanical filtration and thermal drying was concentrated in two operating sectors as a whole, not only to achieve the depth of flotation concentrate dewatering, and make slime products from coal preparation by-products to add value to commodity coal. Since the price of thermal coal price is slime 3 to 4 times, so using the device can bring significant economic benefits for the enterprise. In recent years, increasing the yield of Coal Slurry, quick - drying filter just to meet this gap in the market, and has broad prospects for development, the future development direction of coal with a quick opening filter press.

Third, the pressure filter filter present, pressure filtration technology is still evolving and exploring. For example, the drying technology into pressure filtration technology, resorted to a lower moisture. In addition, in the case of constant volume heating, pressure inside the container will naturally rise, so that existing pressure filter required air volume and pressure will be reduced; From another perspective, after drying technology into pressure filtration technology, will not increased energy consumption. With the further development of pressure filtration technology, this vision could become a reality in the near future.