Vertical disc filter

Abstract

A vertical disc filter comprises a ring seat, a ring rail and a sector plate mounted between the ring seat and the ring rail, and is characterized by further comprising a filter cloth sleeve, a pressing sleeve, an n-shaped clamp and a top pressing frame, the filter cloth sleeve is provided with an opening with a large end and a small end, when the filter cloth is mounted, 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 folded and then fixed on the fan-shaped plate through the n-shaped clamp; the jacking frame is detachably connected to the ring rail through a bolt and used for pressing the n-shaped clamp downwards. The filter cloth sleeve of the vertical disc filter is completely attached and fixed on the fan-shaped plate. As sheet-shaped filter cloth is not adopted, the vertical disc filter fundamentally solves the problems that the filter cloth is inconvenient to disassemble and assemble and easy to fall off in the prior art. Besides, when the filter cloth of the vertical disc filter is replaced, the fan-shaped plate can be independently detached to replace the filter cloth without detaching the ring rail, so that the replacement difficulty of the filter cloth is greatly reduced, and the replacement time of the filter cloth is shortened.

Description

Technical Field

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

[0002] The vertical disc filter is a key equipment for filtering alumina products in alumina plants. 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, which is easily blocked by the filtered 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 existing vertical disc filter has a horizontal shaft and a ring track. The small end of the fan-shaped plate is installed on the ring seat of the horizontal shaft, and the large end is fixed on the ring track. The fan-shaped plate is hollow inside, and a filtrate inlet and a groove are provided on the fan-shaped plate. The 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. When replacing the filter cloth, the ring track needs to be removed first, and then the fan-shaped plate is removed to replace the filter cloth. Such an installation structure has the following defects:

[0004] 1. The groove width is smaller than the rubber strip width. When installing the filter cloth, the rubber strip needs to be knocked hard to enter the groove, which is very inconvenient to disassemble and assemble;

[0005] 2. The rubber strip is easily eroded by the filtrate and loses its elasticity, causing the filter cloth to fall off;

[0006] 3. Replacing the filter cloth is labor-intensive and time-consuming, which affects production.

[0007] Therefore, it is necessary to improve the existing vertical disc filter. Utility Model Content

[0008] In order to overcome the shortcomings of the background technology, the utility model discloses a vertical disc filter, which adopts the following technical solutions:

[0009] A vertical disc filter comprises a ring seat, a ring rail and a sector plate installed between the ring seat and the ring rail, and is characterized in that it also comprises a filter cloth sleeve, a pressing sleeve, a plurality of shaped clamps and a top pressing frame; the filter cloth sleeve has an opening with a large end and a small end; when installing the filter cloth, 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 a pressing sleeve and bolts, and the large opening end of the filter cloth sleeve is folded and fixed to the sector plate by a plurality of shaped clamps; the top pressing frame is detachably connected to the ring rail by bolts and is used to press the plurality of shaped clamps downwards.

[0010] 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.

[0011] 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.

[0012] To further improve the technical solution, the J-type clamp is in the shape of a Chinese character "J" and is made by hot bending a spring plate.

[0013] 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; when the filter cloth is installed, the bolts penetrate the connecting holes and are threadedly connected with the ring seat.

[0014] To further improve the technical solution, the pressing frame has a pressing bolt and four pressing columns. After the pressing bolt is screwed to the ring rail, the four pressing columns are pressed on both sides of the several-shaped clamp respectively.

[0015] After implementing the above technical solution, compared with the background technology, the beneficial effects produced by the utility model are:

[0016] The filter cloth sleeve of the vertical disc filter 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 with 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 fan-shaped plate with a type 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 can be completely fixed on the fan-shaped plate. Since the vertical disc filter does not use a sheet of filter cloth, but a sewn filter cloth sleeve, it fundamentally solves the problem of inconvenient disassembly and assembly of the filter cloth and easy falling off in the prior art.

[0017] In addition, when replacing the filter cloth of this vertical disc filter, the fan-shaped plate can be removed separately to replace the filter cloth without removing the ring rail, which greatly reduces the difficulty of replacing the filter cloth and shortens the replacement time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 Shown is a schematic structural diagram of the vertical disc filter.

[0019] Attached Figure 2 Shown is a schematic diagram of the structure of the ring seat and the pressing sleeve.

[0020] Attached Figure 3 Shown is a schematic diagram of the structure of the fan-shaped plate.

[0021] Attached Figure 4 Shown is a schematic diagram of the fixing structure of several types of clamps.

[0022] Attached Figure 5 Shown is a schematic diagram of the structure of the top pressure frame and the ring rail.

[0023] Attached Figure 6 Shown is a schematic structural diagram of the connection between the ring rail and the fan-shaped plate.

[0024] In the attached drawings: 1, ring seat; 11, mounting hole; 12, threaded hole; 2, fan-shaped plate; 21, trapezoidal hole; 22, mounting shaft; 3, filter cloth sleeve; 4, pressing sleeve; 5, several-shaped clamps; 6, top pressure frame; 61, top pressure bolt; 62, top pressure column; 7, ring rail. DETAILED DESCRIPTION

[0025] 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.

[0026] As attached Figure 1 As shown, a vertical disc filter comprises a ring seat 1, a ring rail 7, a sector plate 2, a filter cloth sleeve 3, a pressing sleeve 4, a plurality of clamps 5 and a top pressing frame 6. The structure and function thereof are described in detail below.

[0027] Refer to the 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.

[0028] Refer to the attached Figure 2 The ring seat 1 is mounted on the horizontal shaft, and a distribution head is arranged between the horizontal shaft and the ring seat 1. A plurality of mounting holes 11 for screwing the sector plate 2 are arranged in a row in the circumferential direction of the ring seat 11, and four threaded holes 12 for connecting the press sleeve 4 are arranged around the mounting holes 11.

[0029] The pressing sleeve 4 is annular and is sleeved on the root of the sector plate 2 . A connecting hole is provided on the pressing sleeve 4 .

[0030] Refer to the attached Figure 3The 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 from the ring seat 1. The root of the sector plate 2 has a hollow installation shaft 22, and the installation shaft 22 has an external thread. During installation, the installation shaft 22 is screwed into the installation hole 11 through the thread.

[0031] Refer to the attached Figure 4 The shape of the J-shaped clamp 5 is in the shape of a Chinese character J, with wing plates on both sides. The J-shaped clamp 5 is made of a spring plate by hot bending, has elasticity, and can apply an inward clamping force to the object.

[0032] Refer to the attached Figure 5 The pressing frame 6 is detachably connected to the ring rail 7 by bolts, and is used to press the several-shaped clamp 5 downward. Specifically, the pressing frame 6 has a pressing bolt 61 and four pressing columns 62. A threaded hole and four slot-shaped through holes are provided on the ring rail 7. After the pressing bolt 61 is screwed with the threaded hole on the ring rail 7, the four pressing columns 62 are pressed on both sides of the several-shaped clamp 5 respectively.

[0033] Again refer to the attached Figure 2 When installing the filter cloth, insert the large opening end of the filter cloth sleeve 3 from the root of the sector plate 2, then tighten the installation shaft 22 of the sector plate 2 into the installation 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.

[0034] Again refer to the attached Figure 4 Then, the filter cloth sleeve 3 is pulled upward to make the filter cloth sleeve 3 tight on the outside of the sector plate 2, and then the large opening end of the filter cloth sleeve 3 is folded, and then the large opening end of the folded filter cloth sleeve 3 is clamped on the outer end of the sector plate 2 using the clamp 5, and the large opening end of the filter cloth sleeve 3 is closed and sealed. In this way, the filter cloth sleeve 3 is tightened, fixed and sealed, so that the filter cloth sleeve 3 is completely close to the sector plate 2, and the filter cloth is replaced.

[0035] Refer to the attached Figure 6 Insert the four pressing columns 62 of the pressing frame 6 into the grooved through holes of the ring rail 7, and then rotate the pressing bolts 61 to press the four pressing columns 62 on both sides of the clamp 5. This structure, firstly, fixes the outer end of the sector plate 2 on the ring rail 7, which is beneficial to improve the strength and rigidity of the sector plate 2; secondly, applies downward pressure to the clamp 5 to prevent it from falling off; thirdly, the sector plate 2 can be removed alone without removing the ring rail 7.

[0036] The disassembly process is the opposite of the above operation process and will not be repeated here.

[0037] As can be seen from the above, when replacing the filter cloth of the vertical disc filter, the ring rail 7 does not need to be removed, and the sector plate 2 can be removed alone to replace the filter cloth, which greatly reduces the difficulty of replacing the filter cloth.

[0038] 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 vertical disc filter, comprising a ring seat, a ring rail and a sector plate installed between the ring seat and the ring rail, characterized in that: It also includes a filter cloth sleeve, a pressing sleeve, several-shaped clamps and a top pressing frame; the filter cloth sleeve has an opening with a large end and a small end. When installing the filter cloth, the filter cloth sleeve is put 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 several-shaped clamps; the top pressing frame is detachably connected to the ring rail by bolts, and is used to press the several-shaped clamps downward.

2. 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. 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. A vertical disc filter according to claim 1, characterized in that: The J-type clamp is in the shape of a Chinese character "J" and is made by hot bending a spring plate.

5. A vertical disc filter according to claim 1, characterized in that: The ring seat is provided with a threaded hole, and the pressing sleeve is provided with a connecting hole; when the filter cloth is installed, the bolts penetrate the connecting holes and are threadedly connected with the ring seat.

6. A vertical disc filter according to claim 1, characterized in that: The pressing frame has a pressing bolt and four pressing columns. After the pressing bolt is screwed to the ring rail, the four pressing columns are pressed on both sides of the several-shaped clamp respectively.

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