Composite filter plate assembly for high-pressure sealing of sludge filter press

Abstract

The utility model relates to the field of sludge dewatering treatment, in particular to a composite filter plate assembly for high-pressure sealing of a sludge filter press, which comprises a filter cavity sealing ring and a filter cavity plate main body, the outer diameter of the filter cavity sealing ring is matched with the inner diameter of the filter cavity plate main body, and the filter cavity sealing ring is arranged in the center of the filter cavity plate main body; the filter cavity plate main body is made of corrosion-resistant reinforced plastic, and the filter cavity sealing ring is made of a corrosion-resistant metal material. According to the utility model, a middle plate group of a high-pressure sealing filter plate unit structure in the prior art is changed into a combined structure from an original integral structure, the filter cavity sealing ring is made of a corrosion-resistant metal material, and the filter cavity plate main body is made of reinforced plastic, so that the high-pressure sealing requirement and the corrosion-resistant requirement can be ensured, and the equipment cost can be greatly reduced; and the weight of the middle plate group is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sludge dehydration treatment, in particular to a composite filter plate component used for high-pressure sealing of a sludge filter press. Background Art

[0002] At present, high-pressure sludge filter presses are widely used in the field of sewage sludge treatment. The main filter press component is an intermediate plate group in a high-pressure sealed filter plate unit structure (patent number: 202110999828.2). The intermediate plate group in the high-pressure sealed filter plate unit structure adopts corrosion-resistant metal materials considering corrosion resistance factors and high-pressure sealing requirements, resulting in excessive weight of the intermediate plate group. At the same time, the intermediate plate group support structure is required to have high strength, which makes the equipment cost very high; in addition, if the intermediate plate group is made of corrosion-resistant reinforced plastic, the reinforced plastic plate shrinks and deforms under high pressure, so that the seal between the intermediate plate groups cannot meet the high-pressure sealing requirements. Summary of the invention

[0003] In view of the existing technical conditions, the utility model provides a composite filter plate assembly for high-pressure sealing of a sludge filter press, which changes the intermediate plate group of the filter plate unit structure of high-pressure sealing in the prior art from the original integral structure to a combined structure, manufactures the filter chamber sealing ring from corrosion-resistant metal material, and manufactures the filter chamber plate body from reinforced plastic, which can not only meet the high-pressure sealing requirements and corrosion resistance requirements, but also greatly reduce the equipment cost, while reducing the weight of the intermediate plate group.

[0004] The technical solution adopted by the utility model is: a composite filter plate assembly for high-pressure sealing of a sludge filter press, comprising a filter chamber sealing ring and a filter chamber plate body, the outer diameter of the filter chamber sealing ring is adapted to the inner diameter of the filter chamber plate body, and the filter chamber sealing ring is arranged at the center of the filter chamber plate body; the filter chamber plate body is made of corrosion-resistant reinforced plastic, and the filter chamber sealing ring is made of corrosion-resistant metal material.

[0005] Furthermore, an annular boss is provided at one end of the filter chamber sealing ring, and an annular support platform is provided on the inner side of the annular boss; an annular groove is provided at one end of the inner wall of the filter chamber plate body, the width of the annular support platform is equal to the depth of the annular groove, the annular support platform is embedded in the annular groove, and the annular boss protrudes from the filter chamber plate body.

[0006] The beneficial effect of the utility model is that since the intermediate plate group of the high-pressure sealed filter plate unit structure in the prior art is changed from the original integral structure to a combined structure of the filter chamber sealing ring and the filter chamber plate body, different materials can be selected to make the filter chamber sealing ring and the filter chamber plate body respectively. The filter chamber sealing ring is made of corrosion-resistant metal material, and the filter chamber plate body is made of reinforced plastic. This can not only ensure the high-pressure sealing requirements and corrosion resistance requirements, but also greatly reduce the equipment cost and reduce the weight of the intermediate plate group. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The main view of the structure of the utility model;

[0008] Figure 2 yes Figure 1 Section view in the AA direction;

[0009] Figure 3 This is the front view of the filter chamber sealing ring of the utility model;

[0010] Figure 4 yes Figure 3 Cross-sectional view in CC direction;

[0011] Figure 5 This is the main view of the filter chamber plate of the utility model;

[0012] Figure 6 yes Figure 5 Cross-sectional view along BB direction.

[0013] In the figure: 1, filter chamber sealing ring, 1-1, annular boss, 1-2, annular support platform; 2, filter chamber plate body 2, 2-1, annular groove, 2-2, center hole of the filter chamber plate body. DETAILED DESCRIPTION

[0014] like Figures 1 to 6 As shown, a composite filter plate assembly for high-pressure sealing of a sludge filter press comprises a filter chamber sealing ring 1 and a filter chamber plate body 2.

[0015] The filter chamber plate body 2 is made of corrosion-resistant PP material, which greatly reduces the weight of the filter plate assembly and reduces the equipment cost. An annular groove 2-1 is opened on the inner wall of one end of the filter chamber plate body 2; in order to ensure the high-pressure strength of the composite filter plate assembly, the filter chamber sealing ring 1 is made of stainless steel, and an annular support platform 1-2 is processed at one end of the filter chamber sealing ring 1. In order to ensure the sealing effect, an annular boss 1-1 is reserved at the outer end of the annular support platform 1-2, and the width of the annular support platform 1-2 is equal to the depth of the annular groove 2-1.

[0016] The annular support platform 1-2 of the filter cavity sealing ring 1 is inserted into the annular groove 2-1 of the filter cavity plate body 2 and fixed with fasteners. At this time, the annular support platform 1-2 is placed in the center hole 2-2 of the filter cavity plate body, the end surface of the annular support platform 1-2 is flush with the end surface of the filter cavity plate body 2, and the annular boss 1-1 protrudes from the filter cavity plate body 2.

Claims

1. A composite filter plate assembly for high pressure sealing of a sludge filter press, characterized in that: The filter chamber sealing ring (1) comprises a filter chamber sealing ring (1) and a filter chamber plate body (2); the outer diameter of the filter chamber sealing ring (1) is matched to the inner diameter of the filter chamber plate body (2); the filter chamber sealing ring (1) is arranged at the center of the filter chamber plate body (2); the filter chamber plate body (2) is made of corrosion-resistant reinforced plastic, and the filter chamber sealing ring (1) is made of corrosion-resistant metal material.

2. A composite filter plate assembly for high pressure sealing of a sludge filter press according to claim 1, characterized in that: An annular boss (1-1) is provided at one end of the filter chamber sealing ring (1), and an annular support platform (1-2) is provided on the inner side of the annular boss (1-1); an annular groove (2-1) is provided at one end of the inner wall of the filter chamber plate body (2), the width of the annular support platform (1-2) is equal to the depth of the annular groove (2-1), the annular support platform (1-2) is embedded in the annular groove (2-1), the end face of the annular support platform (1-2) is flush with the end face of the filter chamber plate body (2), and the annular boss (1-1) protrudes from the filter chamber plate body (2).

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