Multifunctional filter plate, filter press and making method of multifunctional filter plate

Abstract

The invention provides a multifunctional filter plate, a filter press provided with the multifunctional filter plate and a making method of the multifunctional filter plate. The multifunctional filter plate comprises a core plate of a flat plate structure, filter plate frames fixedly arranged at the outer edges of the left side and the right side of the core plate, electrode heating plates fixedly arranged between the core plate and the filter plate frames and a feeding hole penetrating through the electrode heating plates and the core plate in the left-right direction; a material filling cavity communicated with the feeding hole is formed between the inner circumferential surface of each filter plate frame and the outer side face of the corresponding electrode heating plate, each electrode heating plate is provided with a plurality of protruding parts which protrude outwards and are arranged in the corresponding material filling cavity, an inner water flow groove is formed in the inner side of each protruding part, the left outer side face and the right outer side face of the core plate are provided with a plurality of outer water flow grooves, the inner water flow grooves and the outer water flow grooves are communicated to form a heating cavity, and the electrode heating plates are connected with a power source through wires. Filter cakes in the material filling cavities can be subjected to heating dehydration and electrodialytic deep dehydration through the electrode heating plates, so that the moisture content of the filter cakes is further lowered.

Description

technical field [0001] The invention relates to a multifunctional filter plate. [0002] The invention relates to a preparation method of a multifunctional filter plate. [0003] The invention relates to a filter press equipped with the above-mentioned multifunctional filter plate. Background technique [0004] Filter press is a common solid-liquid separation equipment, which has the advantages of stable performance, convenient operation, safety, and labor saving. It is widely used in chemical, pharmaceutical, metallurgy, dyestuff, food, brewing, ceramics, sewage treatment and other environmental protection fields. middle. The filter chamber of the filter press is generally arranged with a plurality of diaphragm filter plates and heating filter plates distributed at intervals. There is a material filling space between adjacent diaphragm filter plates and heating filter plates, and the diaphragm filter plates and heating filter plates work together. 1. Press filter and hea...

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Problems solved by technology

[0005] 1. During the filter press process, a plurality of diaphragm filter plates and heating filter plates distributed at intervals are in a movable state in the filter chamber of the filter press, so when feeding water-containing materials such as sludge into the filter press, due to heating ( The middle part of the inner cavity of the heating plate on the filter) plate is relatively weak, so under the impact of the water-containing material, the middle part of the heating (filter) plate is easily deformed;

[0006] 2. The heating (filter) plate of the above-mentioned structure is inconvenient to process, and the cost is high;

[0007] 3. Although the heating (filter) plate with the above structure can further reduce the water content of the filter cake after heating the filter cake, it cannot meet the requirements for some occasions where the water content of the filter cake is high, that is, it cannot Realize deep dehydration;

[0008] 4. In the above structure, the metal heating surface used for heating is a mesh or flat plate structure, so the filtrate seepage channel is small or easily blocked, the liquid is very slow, and the long-term rapid dehydration effect cannot be maintained, or the filter cake cannot be shortened. drying cycle

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