Filter cloth fixing device of vertical disc filter

Abstract

The utility model relates to a filter cloth fixing device of a vertical disc filter, which comprises a ring seat and a sector plate arranged on the ring seat, and further comprises a filter cloth sleeve, a pressing sleeve and a U-shaped clamp, the filter cloth sleeve is provided with an opening with a large end and a small end, during installation, the filter cloth sleeve is sleeved on the fan-shaped plate, the small opening end of the filter cloth sleeve is fixed on the ring seat through the pressing sleeve and the bolt, and the large opening end of the filter cloth sleeve is fixed on the fan-shaped plate through the U-shaped clamp after being folded. When the filter cloth is replaced, the pressing sleeve is used for fixing the small opening end of the filter cloth sleeve on the ring seat, and the small opening end of the filter cloth sleeve is closed and sealed; the large opening end of the filter cloth sleeve is clamped at the outer end of the fan-shaped plate by using a U-shaped clamp, and the large opening end of the filter cloth sleeve is closed and sealed. In this way, the two ends of the filter cloth sleeve are tightened, fixed, closed and sealed, and the filter cloth sleeve is completely attached to the fan-shaped plate. According to the filter cloth fixing device, sheet-shaped filter cloth is not adopted, but the sewed filter cloth sleeve is adopted, so that the problems that the filter cloth is inconvenient to disassemble and assemble and easy to fall off in the prior art are fundamentally solved.

Description

Technical Field

[0001] The utility model relates to the field of vertical disc filters, in particular to a filter cloth fixing device of a vertical disc filter. Background Art

[0002] The filter cloth is the core component of the vertical disc filter and is also a consumable part. The filter cloth is made of non-woven fabric with gaps, and it is easy to be blocked by the filter material during operation. Although the vertical disc filter can clear the blockage through the backflush device, the filter cloth still needs to be replaced after a period of use.

[0003] The current filter cloth is in sheet form, and the edge of the filter cloth is fixed in the groove of the fan-shaped plate by a rubber strip. The specific structure can be referred to the patent application number 200710078074.7. This fixing method of the filter cloth has two defects. First, the width of the groove is smaller than the width of the rubber strip. When installing the filter cloth, the rubber strip needs to be knocked hard to enter the groove, which is very inconvenient to disassemble and install; second, the rubber strip is easily eroded by the filtrate and loses its elasticity, causing the filter cloth to fall off. Therefore, it is necessary to improve the fixing structure of the filter cloth. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model discloses a filter cloth fixing device for a vertical disc filter, and the filter cloth fixing device adopts the following technical solutions:

[0005] A filter cloth fixing device for a vertical disc filter comprises a ring seat and a sector plate mounted on the ring seat, and also comprises a filter cloth sleeve, a pressing sleeve and a U-shaped clamp; the filter cloth sleeve has an opening with one end being large and the other end being small; when installed, the filter cloth sleeve is sleeved on the sector plate, the small opening end of the filter cloth sleeve is fixed to the ring seat by means of a pressing sleeve and bolts, and the large opening end of the filter cloth sleeve is folded and fixed to the sector plate by means of a U-shaped clamp.

[0006] To further improve the technical solution, the filter cloth sleeve is sewn from non-woven fabric, and after installation, the filter cloth sleeve is tightly stretched on the outside of the fan-shaped plate.

[0007] To further improve the technical solution, the interior of the fan-shaped plate is hollow, and a plurality of trapezoidal holes are provided on the fan-shaped surface of the fan-shaped plate.

[0008] To further improve the technical solution, the U-shaped clip has a U-shaped appearance and is made by hot bending a spring plate.

[0009] To further improve the technical solution, a threaded hole is provided on the ring seat and a connecting hole is provided on the pressing sleeve; during installation, the bolt passes through the connecting hole and is threadedly connected with the ring seat.

[0010] After implementing the above technical solution, compared with the background technology, the beneficial effects produced by the utility model are:

[0011] The filter cloth sleeve of the filter cloth fixing device has an opening with one end large and the other end small. When replacing the filter cloth, the small opening end of the filter cloth sleeve is fixed on the ring seat by a pressing sleeve to seal the small opening end of the filter cloth sleeve; the large opening end of the filter cloth sleeve is clamped on the outer end of the sector plate by a U-shaped clamp to seal the large opening end of the filter cloth sleeve. In this way, the two ends of the filter cloth sleeve are tightened, fixed and sealed, so that the filter cloth sleeve is completely attached to the sector plate.

[0012] The filter cloth fixing device does not use a sheet-shaped filter cloth, but uses a sewn filter cloth cover, which fundamentally solves the problem of inconvenient assembly and disassembly of the filter cloth and easy falling off in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 Shown is a schematic diagram of the overall structure of the filter cloth fixing device.

[0014] Attached Figure 2 Shown is a schematic structural diagram of a ring seat and a pressing sleeve.

[0015] Attached Figure 3 Shown is a schematic diagram of the structure of the fan-shaped plate.

[0016] Attached Figure 4 Shown is a schematic diagram of the fixing structure of the U-shaped clip.

[0017] In the attached figure: 1, ring seat; 11, mounting hole; 12, threaded hole; 2, sector plate; 21, trapezoidal hole; 22, mounting shaft; 3, filter cloth sleeve; 4, pressing sleeve; 5, U-shaped clip. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. It should be noted that in the description of the present invention, the terms "front", "rear", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0019] As attached Figure 1 As shown, a filter cloth fixing device for a vertical disc filter comprises a horizontal shaft, a ring seat 1, a sector plate 2, a filter cloth sleeve 3, a pressing sleeve 4 and a U-shaped clamp 5. The structure and function thereof are described in detail below.

[0020] See attached Figure 1 The filter cloth cover 3 is made of non-woven fabric, and both ends of the filter cloth cover 3 have openings with one end being large and the other end being small.

[0021] See attached Figure 2 A ring seat 1 is fixed on the horizontal axis (not shown) of the vertical disc filter. A plurality of mounting holes 11 are arranged in a row in the circumferential direction of the ring seat 1. Threaded holes 12 for connecting bolts are also provided around the mounting holes 11.

[0022] The pressing sleeve 4 is annular and is sleeved on the mounting shaft 22 of the sector plate 2 . A connecting hole is provided on the pressing sleeve 4 .

[0023] See attached Figure 3 The interior of the sector plate 2 is hollow, and four trapezoidal holes 21 are provided on the sector surface of the sector plate 2. During operation, the filtrate enters the sector plate 2 from the trapezoidal holes 21, and then enters the horizontal shaft. The root of the sector plate 2 has a hollow mounting shaft 22. During installation, the mounting shaft 22 is installed in the mounting hole 11.

[0024] See attached Figure 4 The U-shaped clamp 5 is U-shaped in shape. The U-shaped clamp 5 is made of a spring plate that is hot-bent, has elasticity, and can apply an inward clamping force to an object.

[0025] Again refer to the attached Figure 2 During installation, insert the large opening end of the filter cloth sleeve 3 from the root of the sector plate 2, then install the mounting shaft 22 of the sector plate 2 in the mounting hole 11 of the ring seat 1, and then use the pressing sleeve 4 and bolts to fix the small opening end of the filter cloth sleeve 3 on the ring seat 1, and seal the small opening end of the filter cloth sleeve 3.

[0026] Again refer to the attached Figure 4 Then, pull the filter cloth cover 3 upwards to make it tight on the outside of the sector plate 2, then fold the large opening end of the filter cloth cover 3, and use the U-shaped clamp 5 to clamp the folded large opening end of the filter cloth cover 3 on the outer end of the sector plate 2, and seal the large opening end of the filter cloth cover 3. In this way, the filter cloth cover 3 is tightened, fixed and sealed, so that the filter cloth cover 3 is completely close to the sector plate 2, and the filter cloth is replaced.

[0027] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A filter cloth fixing device for a vertical disc filter, comprising a ring seat and a sector plate mounted on the ring seat, characterized in that: It also includes a filter cloth sleeve, a pressing sleeve and a U-shaped clip; the filter cloth sleeve has an opening that is large at one end and small at the other end. When installed, the filter cloth sleeve is sleeved on the fan-shaped plate, the small opening end of the filter cloth sleeve is fixed to the ring seat by the pressing sleeve and bolts, and the large opening end of the filter cloth sleeve is folded and fixed to the fan-shaped plate by the U-shaped clip.

2. The filter cloth fixing device of a vertical disc filter according to claim 1, characterized in that: The filter cloth cover is made of non-woven fabric. After installation, the filter cloth cover is tightly stretched on the outside of the sector plate.

3. The filter cloth fixing device of a vertical disc filter according to claim 1, characterized in that: The interior of the fan-shaped plate is hollow, and a plurality of trapezoidal holes are arranged on the fan-shaped surface of the fan-shaped plate.

4. The filter cloth fixing device of a vertical disc filter according to claim 1, characterized in that: The U-clip is U-shaped and is made by hot bending a spring plate.

5. The filter cloth fixing device of a vertical disc filter according to claim 1, characterized in that: A threaded hole is provided on the ring seat, and a connecting hole is provided on the pressing sleeve; during installation, the bolt passes through the connecting hole and is threadedly connected with the ring seat.

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