Basic requirements and characteristics of coal filter press
March 21, 2024
As the checkpoint equipment of the coal slime water treatment system, the
Filter Press must have basic characteristics such as large-scale equipment, rapid operation, and stable and reliable system. With the requirements for the moisture content of the mud cake getting lower and lower, the requirements for the coal filter press The requirements are also gradually increasing.
(1) Large-scale equipment
The use of large filter plates and short configurations can not only reduce the floor space, but also reduce the number of pressure differential transmissions due to the shortening of the filter plate components, and the pressure difference is easily interrupted. While increasing the processing capacity, it can also reduce the risk of uneven cake formation. To avoid the dangerous pressure difference generated, the quick-opening filter press adds a metal drive plate in the middle of the filter plate assembly, which can completely block the transmission of pressure difference and extend the life of the filter plate and the entire filter press.
(2) Faster operation
The filter press is required to feed materials quickly, discharge liquid quickly, unload cake quickly, and replace filter cloth quickly. This facilitates large-scale filter presses to adopt multi-port feeding, simultaneous discharge of light and dark flow, optimized filter surface design, and shortened diaphragm extrusion. The technical filtration cycle and the realization of measures such as the plate-cloth separation structure with the feed shoe. For extra large filter presses, it is more appropriate to use the high-level slot feeding method. In the early stage of filtration, the high-level gravity flow method is used to feed the filter press. The machine feeds materials without obstacles and achieves rapid filtration without the need for a feed pump, which can greatly save energy consumption; in the later stage of filtration, a small flow high-pressure pump is used to reduce costs.
(3) System reliability
When using a filter press, in addition to requiring the reliability of the hydraulic system, pull plate system, cloth washing system and liquid collection flap system, timely knowledge of the damage to the filter cloth and discovery of the exact location of the damaged filter cloth are critical to the stability of the entire process. Operation is also very important.
