压 滤机作为一种有效的固液分离设备被广泛地应用于 煤炭、黄金、化工和造纸等行业中，并且应用领域不断扩大。其入料密封力的来源为液压压紧，在实际生产中会遇到油缸泄漏的问题。通常泄漏有内泄和外泄两种，内泄主要影响压滤机的技术性能，出现密封压力不足、泵站起动频繁、 Filter press as an effective solid-liquid separation equipment is widely used in coal, gold, chemical and paper industries, and applications continue to expand. The source of sealing force for the hydraulic compression, in the actual production will encounter the problem of cylinder leakage. Usually there are two internal leakage and leakage of leakage, internal leakage mainly affects the technical performance of the filter press, the lack of sealing pressure, frequent start pumping station,