壓力過濾過程分為過濾和壓力過濾的潔凈煤技術多集中在隔膜壓榨隔膜壓濾機的研究，通過脫水裝置如吹面包和卸料速度、出料速度似乎比下游的能力甚至更大；但影響隔膜壓濾機的過濾效率和能力在過濾階段的決定性環節，尤其是難過濾材料，如粘土漿，含量高的污泥，經常把超過60%的總周期，因此，提高壓濾機的生產率的關鍵在于如何優化材料。
在選煤廠中，壓濾機是煤泥水處理設備的后一道，必須保證所有煤泥回收，用于處理浮選機和煤泥隔膜擠壓壓濾機有隔膜、強壓力通過等。
壓濾機由于濾餅含水率低，可實現自動間歇操作，隔膜壓濾機已在礦業、輕工、化工等域得到了廣泛的應用。單泵入料壓濾器采用單泵入料，即按壓濾機進入所需物料泵，流量和揚程選用大流量高揚程泵，優點是結構簡單，施工方便，投資少。
同時，單泵的材料也有缺點，在填充開始會產生大的耐介質性能，為材料，電阻越大，而相應的泵灌裝壓力較大，從而導致濾布表面形成濾餅層破壞，漿液中增加，過濾器的過濾水的濁度。
The pressure filtration process is divided into filtration and pressure filtration. The clean coal technology is mostly concentrated on the diaphragm press diaphragm filter press. The dewatering device such as the breading and unloading speed, the discharge speed seems to be even larger than the downstream capacity; The filtration efficiency and capacity of the membrane filter press are at the decisive point in the filtration stage, especially for difficult-to-filter materials such as clay slurries, high-content sludge, which often exceeds 60% of the total cycle, thus increasing the productivity of the filter press. The key is how to optimize the material.
In the coal preparation plant, the filter press is the last of the slime water treatment equipment, and all the slime recovery must be ensured. The flotation machine and the slime membrane squeeze filter press have a diaphragm and strong pressure.
Due to the low moisture content of the filter cake, the filter press can realize automatic intermittent operation. The diaphragm filter press has been widely used in the fields of mining, light industry and chemical industry. The single-pump feed most pressure filter adopts single-pump feeding, that is, presses the filter to enter the required material pump, and the flow rate and lift adopts high-flow high-lift pump. The advantage is simple structure, convenient construction and low investment.
At the same time, the material of the single pump also has disadvantages. At the beginning of filling, it will produce great resistance to medium. As the material, the electric resistance is larger, and the corresponding pump filling pressure is larger, resulting in the formation of filter cake layer on the surface of the filter cloth. Increase the turbidity of the filtered water of the filter.
