Multidirectional direct-pressing type solid-liquid separation system and method

Abstract

The invention discloses a multidirectional direct-pressing type solid-liquid separation system and method. A multidirectional pressure unit is arranged in the solid-liquid separation system and comprises a transverse pressure device, a longitudinal pressure device and a pressure device in the perpendicular direction; a pressure application control unit controls the multidirectional pressure unit to alternately perform frequent pressure filtering on a material in a material cavity of a pressure filtering unit from multiple directions, so that the material in a filtering bag is uniformly pressure-filtered and solidified; and therefore, the pressure filtering efficiency for the material is improved, and the solid-liquid separation cost is reduced.

Description

technical field [0001] The invention relates to the technical field of solid-liquid separation, in particular to a system and method for directly applying pressure to wet materials in a filter bag alternately from multiple directions for solid-liquid separation. Background technique [0002] In industrial and agricultural production and life, a large number of wet materials need to be separated from solid and liquid, and the commonly used methods of solid-liquid separation include pressure filtration, vacuum filtration, centrifugal filtration, and membrane filtration. Filter press technology is widely used in industrial production. Common filter press methods include plate and frame filter press, belt filter press, rotary filter press, tank filter press and pressing. In terms of the method of filtration, the filter press equipment used includes a hydraulic device and a filter press device. The filter press device includes multiple sets of connected filter plates. The filter ...

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Problems solved by technology

[0003] However, the effect of solid-liquid separation of wet materials through this kind of filter press equipment is not ideal. The moisture content of wet materials after press filter is generally above 50%, and the time required for press filter is long, and the filter press efficiency is low.

Moreover, the filter press methods in the prior art all use the filter plate to squeeze the wet material multiple times in the same direction, so that the moisture content of the wet material at the center is higher than that of the wet material at the periphery near the filter plate. rate, therefore, the curing of the material is not uniform

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