A fixing ring for installing filter plates of a disc filter

Abstract

The present invention relates to the field of auxiliary installation equipment for disk filters, and specifically to a fixed ring for installing filter plates of a disk filter. It includes a ring body and a connection component for fixing the ring body on the main shaft of the filter. The ring body includes two parallel side ring plates, and the plate surfaces of the two side ring plates are distributed opposite to each other. A plurality of partition plates are arranged at intervals in the annular gap between the two side ring plates. Slots for inserting the root of a filter plate onto the main shaft of the filter are formed at positions between any two adjacent partition plates in the annular gap. The present invention can ensure the flatness of the filter disk formed after the filter plates are installed, and can seal the roots of the filter plates to avoid vacuum leakage.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary installation equipment for disk filters, and specifically to a fixing ring for installing filter plates of a disk filter. Background Art

[0002] Disk filters can be applied to all industries that can utilize vacuum filtration, and are now widely used in the solid-liquid separation of aluminum hydroxide seed liquor, desalting liquor, flotation concentrate of bauxite, flotation concentrate and tailings of various mines, and coal slime in the non-ferrous metal industry alumina plant, as well as in the coal industry.

[0003] The filter disks of a disk filter rotate in a filter tank filled with slurry, adsorb materials through the action of vacuum, the filtrate flows away through the internal flow channels, and the solids are blocked by the filter cloth to form a filter cake outside, achieving the purpose of solid-liquid separation. The filter disk is the main part of the disk filter and is composed of fan-shaped filter plates assembled together. The roots of the fan-shaped filter plates are fixed on the central shaft, and the outer edges of the fan parts are connected by a set of guide rails to form a complete ring to fix the outer circles of all filter plates. In order to ensure the stable operation of the equipment, the flatness of the filter disk surface formed by the surfaces of all filter plates is particularly important during equipment installation.

[0004] There are mainly two forms of the root installation of the filter plates of traditional disk filters. One is in the form of an imitation S-hook, and both sides use bolts to press the roots of the filter plates against the plane of the support clamp sleeve. The other form is that the roots of the filter plates are connected to the main shaft through a sealing rubber sleeve, and the upper part is tightened by a pull rod to fix the outer circle of the filter plate. In the first method, although the roots are stably installed by pressing with bolts on both sides, due to the support of the sealing ring, the pre-tightening forces of the bolts on both sides are different, and the fan-shaped plate is prone to yaw during installation. Moreover, one filter plate needs to correspond to tightening two nuts, and the installation is relatively troublesome. In the second method, although the installation is simple, the sealing performance of connecting to the main shaft through a sealing rubber sleeve is poor, and it is easy to leak vacuum or allow the filtrate to enter the internal flow channel. Only by pressing and fixing the guide rail with a pull rod, it is prone to yaw, and the installation stability of the root is poor. Summary of the Invention

[0005] The present invention aims to provide a fixing ring for installing filter plates of a disk filter, which can ensure the flatness of the filter disk formed after the filter plates are installed, and can seal the roots of the filter plates to avoid vacuum leakage.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fixing ring for installing filter plates of a disk filter, including a ring body and a connecting component for fixing the ring body on the main shaft of the filter. The ring body includes two parallel side ring plates, the plate surfaces of the two side ring plates are distributed opposite to each other, and a plurality of partition plates are arranged at intervals in the annular gap between the two side ring plates. Slots for inserting the roots of one filter plate onto the main shaft of the filter are formed at positions between any two adjacent partition plates in the annular gap.

[0007] Preferably, the connecting component is a connecting plate arranged at the inner edge of the side ring plate. One end of the connecting plate is welded and fixed to the inner edge of the side ring plate, and the other end is used for fixedly connecting with the filter press main shaft by welding.

[0008] Preferably, the connecting plate is arranged at the position corresponding to the partition plate on the side ring plate.

[0009] Preferably, the two side ring plates in the ring body are concentrically distributed on the filter press main shaft.

[0010] Preferably, multiple partition plates are evenly spaced in the annular gap between the two side ring plates.

[0011] Beneficial effects

[0012] In the present invention, the ring body is fixed on the filter press main shaft through the connecting component. In the ring body, the two side ring plates are separated by partition plates into multiple slots for inserting filter plates. After the root of the filter plate is fixed on the filter press main shaft through the slot, both sides of the root of the filter plate are pressed by the side ring plates, ensuring the flatness of the disk surface of the filter disk composed of filter plates; the periphery of the root of the filter plate is supported by an annular surface formed by the side ring plate and two partition plates respectively, and its stability is greatly improved compared with the installation method in the prior art; the periphery of the root of the filter plate is pressed and sealed by the side ring plate and the partition plates, so that the sealing performance inside the root of a single filter plate is good and there is no vacuum leakage. Description of the drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0014] Reference numerals in the figure: 1, connecting component; 2, filter press main shaft; 3, ring body; 301, side ring plate; 302, partition plate. Specific embodiments

[0015] As Figure 1 shown, four fixed rings for installing the filter plates of the disk filter of the present invention are arranged at intervals on the filter press main shaft 2. After the filter plates are respectively assembled on the filter press main shaft 2 by the four fixed rings, four filter disks are formed. Any one of the fixed rings includes a ring body 3 and a connecting component 1 for fixing the ring body 3 on the filter press main shaft 2.

[0016] The annular body 3 includes two side annular plates 301 concentrically distributed on the outer periphery of the filter main shaft 2. The two side annular plates 301 have the same specification and shape and are arranged parallel to each other. The plate surfaces of the two side annular plates 301 face each other, so as to form an annular gap between the two side annular plates 301. The width of the annular gap, that is, the distance between the two side annular plates 301, corresponds to the thickness of the filter plate. A plurality of partition plates 302 are evenly spaced in the circumferential direction in the annular gap. Both sides of the partition plate 302 are fixedly welded to the plate surfaces of the side annular plates 301 respectively, so that the annular gap is divided into a plurality of slots for the roots of single filter plates to be inserted into the filter main shaft 2 by any two adjacent partition plates 302. The part corresponding to the side annular plate 301 in the slot is used to tightly press both sides of the filter plate, and the part corresponding to the partition plate 302 is used to tightly press both sides of the filter plate. After the filter plate is inserted into the slot, the periphery of the filter plate is supported by the corresponding parts of the slot to form a surface, so as to achieve the technical effects of ensuring the flatness of the filter disk formed by the filter plates, maintaining the stability of the roots of the filter plates and controlling the sealing of the roots of the filter plates.

[0017] The connecting component 1 is a rectangular connecting plate arranged at the inner edge position of the side annular plate 301. The setting position of the connecting component 1 is on both sides of the partition plate 302. One end of the connecting plate is fixedly welded to the inner edge of the side annular plate 301, and the other end is used to be fixedly connected to the filter main shaft 2 by welding.

[0018] In the application of the present invention, the partition plates 302 are arranged between the two side annular plates 301 according to the angle of the sector filter plate itself and the number of filter plates. After inserting a single filter plate into the slot, the internal channel of the filter main shaft 2 is connected to the internal channel of the filter plate. After all the filter plates are inserted and the corresponding internal channel connections are completed, the outer circles of all the filter plates are fixed by connecting to form a complete ring through the guide rail, that is, a filter disk is formed, and the installation of the filter disk of the disk filter is completed.

Claims

1. A fixing ring for installing filter plates of a disk filter, characterized in that: It includes an annular body (3) and a connecting component (1) for fixing the annular body (3) on the main shaft (2) of the filter press. The annular body (3) includes two parallel side annular plates (301), the plate surfaces of the two side annular plates (301) are distributed oppositely, and a plurality of partition plates (302) are arranged at intervals in the annular gap between the two side annular plates (301). Slots for inserting the root of a filter plate onto the main shaft (2) of the filter press are formed at positions between any two adjacent partition plates (302) in the annular gap. The connecting component (1) is a connecting plate arranged at the inner edge position of the side annular plate (301). One end of the connecting plate is welded and fixed to the inner edge of the side annular plate (301), and the other end is used to be fixedly connected to the main shaft (2) of the filter press by welding; the connecting plate is arranged at the position corresponding to the partition plate (302) on the side annular plate (301).

2. The fixed ring for installing the filter plate of the disk filter according to claim 1, characterized in that: The two side annular plates (301) in the annular body (3) are both concentrically distributed with respect to the main shaft (2) of the filter press.

3. The fixed ring for installing the filter plate of a disk filter according to claim 1, characterized in that: The plurality of partition plates (302) are evenly spaced in the annular gap between the two side annular plates (301).

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