CN110681208A

CN110681208A - Fixed ring for mounting filter plate of disc filter

Info

Publication number: CN110681208A
Application number: CN201911037161.7A
Authority: CN
Inventors: 王新昌; 高良玉; 霍华; 王纪瑞; 宋虎
Original assignee: CITIC Heavy Industries Co Ltd
Current assignee: CITIC Heavy Industries Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-01-14

Abstract

The invention relates to the field of auxiliary mounting equipment of a disc filter, in particular to a fixed ring for mounting a filter plate of the disc filter. The connecting component comprises a ring body and a connecting component used for fixing the ring body on a main shaft of the filter, wherein the ring body comprises two side ring plates which are parallel to each other, the surfaces of the two side ring plates are distributed oppositely, a plurality of partition plates are arranged in the annular gap between the two side ring plates at intervals, and the position between any two adjacent partition plates in the annular gap is provided with a slot for inserting the root of a filter plate into the main shaft of the filter. The invention can ensure the flatness of the filter disc formed after the filter plate is installed, and can seal the root part of the filter plate to avoid vacuum leakage.

Description

Fixed ring for mounting filter plate of disc filter

Technical Field

The invention relates to the field of auxiliary mounting equipment of a disc filter, in particular to a fixed ring for mounting a filter plate of the disc filter.

Background

The disc filter can be applied to all industries capable of utilizing vacuum filtration, and is widely applied to the solid-liquid separation of aluminum hydroxide seed liquid, salt discharge liquid, bauxite flotation concentrate, flotation concentrate of various mines, tailings and coal slime in coal industry in alumina plants in the non-ferrous metal industry.

The filter disc of the disc filter rotates in a filter tank filled with slurry, materials are adsorbed under the action of vacuum, filtrate flows away through an internal flow channel, and solids are prevented from forming a filter cake by filter cloth, so that the aim of solid-liquid separation is fulfilled. The filter disc is the main part of the disc filter and is formed by splicing a sector filter plate, the root of the sector filter plate is fixed on a central shaft, and the outer edge of the sector filter plate is connected by a group of guide rails to form a complete ring to fix the excircle of all the filter plates. In order to ensure the stable operation of the equipment, the flatness of the disc surface of the filter disc formed by the plate surfaces of all the filter plates is particularly important when the equipment is installed.

The root installation forms of the filter plate of the traditional disc filter mainly comprise two types, one type adopts an S-hook-like form, and the root of the filter plate is tightly pressed on the plane of the support sleeve by bolts at two sides; the other form is that the root part of the filter plate is connected with the main shaft through a sealing rubber sleeve, and the upper part of the filter plate is tensioned through a pull rod to tighten the guide rail so as to fix the excircle of the filter plate. The first mode is pressed tightly through the bolts on two sides, the root is stably installed, but due to the support of the sealing ring, the pretightening force of the bolts on two sides is different, the sector plate is easy to deflect during installation, and two nuts need to be screwed correspondingly by one filter plate, so that the installation is troublesome. Although the second mode is simple to install, the tightness of connection between the sealing rubber sleeve and the main shaft is poor, and vacuum leakage or filtrate entering into the flow channel is easy to occur. The guide rail is only compressed and fixed through the pull rod, the deflection is easy, and the installation stability of the root part is poor.

Disclosure of Invention

The invention aims to provide a fixed ring for mounting a filter plate of a disc filter, which ensures the flatness of a filter disc formed after the filter plate is mounted, and can seal the root of the filter plate to avoid vacuum leakage.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a fixed ring of installation disc filter plate, includes the ring body and is used for fixing the coupling assembling of ring body on the filter main shaft, and the ring body includes two side ring boards that are parallel to each other, and the face of two side ring boards distributes relatively, and the interval is equipped with a plurality of baffles in the annular gap between two piece side ring boards, and the root that lies in between arbitrary two adjacent baffles in the annular gap all forms and supplies a filter plate pegs graft in the epaxial slot of filter main shaft.

Preferably, the connecting assembly is a connecting plate arranged at the inner edge of the side ring plate, one end of the connecting plate is welded and fixed at the inner edge of the side ring plate, and the other end of the connecting plate is fixedly connected with the main shaft of the filter in a welding mode.

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

Preferably, the two side ring plates in the ring body are concentrically distributed on the main shaft of the filter.

Preferably, a plurality of partition plates are uniformly arranged in the annular gap between the two side annular plates at intervals.

Advantageous effects

The ring body is fixed on a main shaft of the filter through a connecting component, and two side ring plates are divided into a plurality of slots for inserting filter plates by partition plates in the ring body. After the root of the filter plate is fixed on the main shaft of the filter through the slot, two sides of the root of the filter plate are respectively pressed through the side ring plates, so that the flatness of the disc surface of a filter disc consisting of the filter plates is ensured; the periphery of the root part of the filter plate is respectively supported by a side annular plate and two partition plates to form an annular surface, so that the stability of the filter plate is greatly improved compared with the installation mode in the prior art; the periphery of the root part of the filter plate is compressed and sealed by the side ring plate and the partition plate, so that the root part of the single filter plate has good sealing performance and no vacuum leakage.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

the labels in the figure are: 1. the filter comprises a connecting assembly, 2, a filter main shaft, 3, a ring body, 301, a side ring plate, 302 and a partition plate.

Detailed Description

As shown in figure 1, four fixed circular rings for installing filter plates of the disc type filter are arranged on a main shaft 2 of the filter at intervals, and after the filter plates are respectively assembled on the main shaft 2 of the filter by the four fixed circular rings, four filter discs are formed. Any one of the fixed circular rings comprises a ring body 3 and a connecting component 1 used for fixing the ring body 3 on a main shaft 2 of the filter.

The ring body 3 comprises two side ring plates 301 concentrically distributed on the periphery of the main shaft 2 of the filter, the two side ring plates 301 are same in specification and shape and are distributed in parallel, and the plate surfaces of the two side ring plates 301 are opposite, so that an annular gap is formed between the two side ring plates 301. The width of the annular gap, i.e. the distance between the two side ring plates 301, corresponds to the thickness of the filter plate. A plurality of partition plates 302 are uniformly arranged in the annular gap at intervals along the circumferential direction, and two sides of each partition plate 302 are respectively fixed on the layout of the side annular plate 301 in a welding mode, so that any two adjacent partition plates 302 divide the annular gap into a plurality of slots for inserting the roots of the single filter plates into the main shaft 2 of the filter. The part of the slot corresponding to the side ring plate 301 is used for pressing two sides of the filter plate, the part corresponding to the partition plate 302 is used for pressing two sides of the filter plate, and after the filter plate is inserted into the slot, the periphery of the filter plate is supported by the corresponding forming surfaces of the slot, so that the technical effects of ensuring the flatness of a filter disc formed by the filter plate, keeping the stability of the root of the filter plate and controlling the sealing of the root of the filter plate are achieved.

The connecting components 1 are rectangular connecting plates arranged at the inner edge positions of the side ring plates 301, and the arrangement positions of the connecting components 1 are positioned at two sides of the partition plate 302. One end of the connecting plate is welded and fixed on the inner edge of the side ring plate 301, and the other end is fixedly connected with the main shaft 2 of the filter in a welding mode.

In the application of the invention, a partition 302 is provided between the two side ring plates 301 according to the angle of the sector filter plates themselves and the number of filter plates. After the single filter plate is inserted into the slot, the internal channel of the main shaft 2 of the filter is connected with the internal channel of the filter plate. After all the filter plates are inserted and the connection of the corresponding internal channels is completed, the filter plates are connected through the guide rails to form a complete ring to fix the outer circles of all the filter plates, so that a filter disc is formed, and the installation of the filter disc of the disc filter is completed.

Claims

1. The utility model provides a fixed ring of installation disk filter plate which characterized in that: including ring body (3) and be used for fixing coupling assembling (1) on filter main shaft (2) with ring body (3), ring body (3) include two side ring boards (301) that are parallel to each other, the face relative distribution of two side ring boards (301), the interval is equipped with a plurality of baffles (302) in the annular gap between two side ring boards (301), the position that lies in between arbitrary two adjacent baffles (302) in the annular gap all forms the root that supplies a filter plate and pegs graft the slot on filter main shaft (2).

2. A fixed ring for mounting a filter plate of a disc filter according to claim 1, wherein: the connecting component (1) is a connecting plate arranged at the inner edge of the side ring plate (301), one end of the connecting plate is welded and fixed at the inner edge of the side ring plate (301), and the other end of the connecting plate is fixedly connected with the main shaft (2) of the filter in a welding mode.

3. A fixed ring for mounting a filter plate of a disc filter according to claim 2, wherein: the connecting plate is arranged on the side ring plate (301) at a position corresponding to the partition plate (302).

4. A fixed ring for mounting a filter plate of a disc filter according to claim 1, wherein: two side ring plates (301) in the ring body (3) are concentrically distributed on the main shaft (2) of the filter.

5. A fixed ring for mounting a filter plate of a disc filter according to claim 1, wherein: the partition plates (302) are uniformly arranged in the annular gap between the two side ring plates (301) at intervals.