Filter press and filter pressing method

A filter press and filter belt technology, applied in chemical instruments and methods, dewatering/drying/concentrated sludge treatment, water/sludge/sewage treatment, etc. degree, reduce the occupation, and solve the effect of oversized equipment
CN110372170APending Publication Date: 2019-10-25CHINA TIESIJU CIVIL ENG GROUP +1
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
CHINA TIESIJU CIVIL ENG GROUP
Publication Date
2019-10-25

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Abstract

The invention relates to a filter press and a filter pressing method, and belongs to the technical field of water removing equipment. The filter press comprises a first filter pressing system and a second filter pressing system, the first filter pressing system internally comprises a first filter belt, the second filter pressing system internally comprises a second filter belt, a section of an overlapping part formed by mutual attaching is arranged between the first filter belt and the second filter belt, pressing rollers are arranged on one side of the overlapping part, the pressing rollers extrude the overlapping part, thus objects to be subjected to filter pressing between the first filter belt and the second filter belt are extruded to filter liquid out; and the two or more pressing rollers are arranged, and the diameters of the pressing rollers located on the front filter pressing position are larger than the diameters of the pressing rollers located on the rear filter pressing position. The multiple pressing rollers with the diameters being decreased progressively are adopted to sequentially conduct pressure progressive increase type filter pressing on the overlapping part, the pressing rollers located on the front filter pressing position become the basis of further filter pressing of the pressing rollers located on the rear filter pressing position, high-efficiency filter pressing of overall filter pressing equipment is achieved, and the water outlet proportion of the objects, to be subjected to filter pressing, such as sludge and impurities is increased.
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Description

technical field

[0001] The invention relates to the technical field of water removal equipment, in particular to a filter press and a filter press method. Background technique

[0002] Belt filter press is widely used in sludge dehydration treatment in industries such as urban domestic sewage, textile printing and dyeing, electroplating, papermaking, leather, brewing, food processing, coal washing, petrochemical, chemical, metallurgy, pharmaceutical, ceramics, etc. Solid separation or liquid leaching process in industrial production. The basic principle is that after the concentrated sludge is fully mixed with a certain concentration of flocculant in the static and dynamic mixer, the tiny solid particles in the sludge will coagulate into larger flocculent agglomerates, and free water will be separated at the same time. The flocculated sludge is conveyed to the filter belt of thickening gravity dehydration, and the free water is separated under the action of gravity to form ...

Claims

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