A removable sector plate for a large-diameter filter

Abstract

A detachable sector plate of a large-diameter filter comprises a connector and a sector unit; one end of the connector has a central axis hole interface, and the other end has at least two sector unit plug-in holes, and a threaded mounting hole is provided on the end face of the connector where the sector unit plug-in hole is located; the sector unit comprises a fixedly connected sector plate body and a sector plate handle, and after the end of the sector plate handle is plugged into the sector unit plug-in hole, the inner cavities of the connector, the sector plate body and the sector plate handle are connected; a hook seat is provided on the sector plate handle, and the hook seat is connected to the corresponding threaded mounting hole by a fastener. The detachable sector plate of the large-diameter filter can reduce the weight of each sector unit, while ensuring the strength of the connection with the central axis, so that the sector unit is light in weight and high in strength, and each component is also easy to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of large-diameter filters, in particular to a detachable sector plate of a large-diameter filter. Background Art

[0002] Disc vacuum filter is a dehydration equipment used for solid-liquid separation. It has developed rapidly in recent years and is widely used in aluminum hydroxide seed filtration and mineral processing industries. In order to reduce the number of equipment, reduce operating costs, and improve dehydration efficiency, its development trend is to increase the size of equipment specifications and increase the number of filter discs on each disc, which not only improves equipment efficiency but also reduces floor space. The equipment performance is stable and reliable, and easy to maintain to ensure smooth commissioning and normal production. It is also necessary to fully consider equipment energy saving and reduce production costs. Large-scale equipment can save infrastructure costs and maintenance costs and reduce labor intensity, so the demand for filters with large disc diameters is becoming increasingly strong.

[0003] During the maintenance of disc filters, the fan plates need to be frequently disassembled to replace the filter cloth, especially for mining filters. Due to the abrasiveness and impact of the slurry, the filter cloth has a short life. At present, the detachable fan plates are a fan plate with a filter cloth, and each fan plate is installed in the hole of the center shaft in turn. However, the increase in the diameter of the filter disc will inevitably increase the weight of the fan plate, making it difficult to disassemble and maintain. In addition, the fan plate is long and thin, resulting in insufficient root support strength. In order to increase the root support, the center shaft size can only be increased as a whole. Once it is worn, it will be difficult to replace the center shaft, increasing production costs.

[0004] Therefore, developing a light-weight, high-strength, detachable fan-shaped plate for a large-diameter filter has become a basic demand of those skilled in the art. Utility Model Content

[0005] The utility model aims to provide a detachable sector plate of a large-diameter filter, which can reduce the weight of each sector unit while ensuring the strength of the connection with the central axis, so that the sector unit is light in weight and high in strength, and each component is also easy to disassemble.

[0006] The technical solution adopted by the utility model is: a detachable sector plate of a large-diameter filter, comprising a connecting piece and a sector unit;

[0007] One end of the connector has a central axis hole interface, and the other end has at least two fan-shaped unit plug-in holes, and the end surface of the connector where the fan-shaped unit plug-in holes are located is provided with threaded mounting holes;

[0008] The fan-shaped unit comprises a fan-shaped plate body and a fan-shaped plate handle which are fixedly connected. After the end of the fan-shaped plate handle is inserted into the insertion hole of the fan-shaped unit, the inner cavities of the connecting piece, the fan-shaped plate body and the fan-shaped plate handle are connected.

[0009] A hook seat is provided on the sector plate handle, and the hook seat is connected to the corresponding threaded mounting hole through a fastener.

[0010] As a preferred solution, the connector is Y-shaped, with the single-end being a central axis hole interface and the double-end being two fan-shaped unit plug-in holes.

[0011] As a preferred solution, the fastener includes a stud bolt and a nut;

[0012] One end of the stud bolt is threaded into the threaded mounting hole, and the other end is threaded into the nut, so that the nut is squeezed onto the end surface of the hook seat.

[0013] As a preferred solution, the nut is a cap nut.

[0014] As a preferred solution, one end of the sector plate handle that cooperates with the sector unit plug-in hole is cylindrical.

[0015] As a preferred solution, the cross section of the hook seat is hook-shaped, the side surface of the hook seat has an abutment surface abutting against the circumferential surface of the stud bolt, and the end of the hook seat away from the connecting piece is a pressing surface abutting against the nut.

[0016] As a preferred solution, two hook seats are provided on the outer side of the middle part of a sector-shaped plate handle, and the two hook seats are symmetrical about the axis center of the sector-shaped plate handle.

[0017] As a preferred solution, a backing plate is fixed on the end surface of the connector where the fan-shaped unit plug-in hole is located, and a positioning cavity is formed between the backing plate and the corresponding hook seat, and the fastener passes through the positioning cavity.

[0018] As a preferred solution, the cross section of the backing plate is arc-shaped, and in the length direction of the fastener, the thickness of the backing plate is equal to the thickness of the hook seat.

[0019] As a preferred solution, the inner wall of the fan-shaped unit plug-in hole has a step surface, the plug-in end of the fan-shaped plate handle also has a step surface, and a sealing ring is arranged between the two corresponding step surfaces.

[0020] The beneficial effects of the utility model are:

[0021] Based on the defects of the prior art, a detachable fan-shaped plate of a large-diameter filter is provided.

[0022] 1. A detachable connector is designed between the fan-shaped unit and the central shaft to replace the root of the original fan-shaped unit. It has a simple structure, is easy to make, and has a short production cycle. It solves the problem of the fan-shaped plate being heavy and inconvenient to disassemble due to large-scale filters and the problem of the central shaft being inconvenient to replace after wear. It is especially suitable for filters with large disc diameters.

[0023] 2. The structure of two fan-shaped units on one connecting piece can reduce the weight of each fan-shaped unit and ensure the strength of the fan-shaped plate root, solving the problem of the fan-shaped plate being heavy and inconvenient to disassemble due to the large diameter of the filter disc;

[0024] 3. The connecting piece is a detachable piece, which is equivalent to enlarging the outer ring of the central shaft. It is easy to replace even if it is worn, which solves the problem that the large central shaft is difficult to replace after wear in the past;

[0025] 4. The main process in use is to disassemble the fan-shaped unit. The fan-shaped unit is connected to the connecting piece through the hook seat, fasteners and connectors. When disassembling, just loosen the nut of the fastener, and then rotate the fan-shaped unit to a certain angle before pulling it out from the fan-shaped unit plug-in hole;

[0026] 5. The cap nut can prevent the thread of the stud from being damaged, avoid the impact of slurry, and extend the service life of the stud;

[0027] 6. A pad that cooperates with the hook seat is set, which does not affect the quick release of the fan-shaped unit and increases the contact area with the nut end face, making the nut more stable and not easy to loosen, and is beneficial to the sealing of the cap nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a front view schematic diagram of the utility model;

[0030] Figure 2 It is a top view schematic diagram of the utility model;

[0031] Figure 3 for Figure 1 A magnified schematic diagram of the structure at center A;

[0032] Figure 4 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0033] Figure 5 It is a partial cross-sectional schematic diagram of the utility model;

[0034] Figure 6 It is a schematic diagram of the cooperation between the hook seat and the pad of the utility model.

[0035] Reference numerals:

[0036] 1. Connectors;

[0037] 101, center axis hole interface, 102, fan-shaped unit plug-in hole, 103, threaded mounting hole;

[0038] 2. Fan-shaped plate;

[0039] 3. Fan-shaped plate handle;

[0040] 301, hook seat, 302, abutting surface, 303, pressing surface;

[0041] 4. Stud bolts;

[0042] 5. Nut;

[0043] 6. Pad;

[0044] 7. Sealing ring. DETAILED DESCRIPTION

[0045] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0046] It should be noted that: unless otherwise defined, the technical terms or scientific terms used in this article should be understood by people with ordinary skills in the field to which the utility model belongs. The words "one", "an" or "the" and the like used in the patent application specification and claims of this utility model do not express quantitative restrictions, but indicate the existence of at least one; the "first", "second" and "third" used in this article should not be regarded as restrictions on the order of components, but are only used to distinguish different components; "include" or "comprise" and other similar words indicate that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, but do not exclude other elements or objects with the same function.

[0047] In order to more clearly describe the specific structural composition of the removable fan-shaped plate of the large-diameter filter, Figure 1-6 Describe this embodiment:

[0048] like Figure 1 , Figure 4 and Figure 5As shown, a detachable sector plate of a large-diameter filter comprises a connector 1 and a sector unit; one end of the connector 1 has a central axis hole interface 101, and the other end has at least two sector unit plug holes 102, and a threaded mounting hole 103 is provided on the end surface of the connector 1 where the sector unit plug holes 102 are located; the sector unit comprises a sector plate body 2 and a sector plate handle 3 which are fixedly connected, and the end surface of the sector plate body 2 is provided with a filter hole, and after the end of the sector plate handle 3 is plugged into the sector unit plug hole 102, the inner cavities of the connector 1, the sector plate body 2 and the sector plate handle 3 are connected, and the filtrate enters the sector plate body 2 through the filter hole, and then enters the central axis of the filter through the sector plate handle 3;

[0049] A detachable connector 1 is designed between the fan-shaped unit and the central shaft, which has a simple structure, is easy to manufacture, and has a short production cycle. It solves the problem that the fan-shaped plate is heavy and inconvenient to disassemble due to the large-scale filter and the problem that the central shaft is inconvenient to replace after being worn. It is particularly suitable for large-diameter filters and can be used for alumina and mining filters.

[0050] The connecting member 1 is a detachable member, which is equivalent to enlarging the outer ring of the central shaft, and is easy to replace even if it is worn, thus avoiding the problem that the large central shaft body is difficult to replace after being worn;

[0051] like Figure 1 and Figure 3 As shown, there can be specifically two fan-shaped unit plug-in holes 102, so the connector 1 can be designed to be Y-shaped, that is, the single-end is the central axis hole interface 101, and the double-end is two fan-shaped unit plug-in holes 102. Two fan-shaped units are connected to one connector 1, and the length of each fan-shaped unit needs to be relatively reduced, which can reduce the weight of each fan-shaped unit and solve the problem that the fan-shaped plate is heavy and inconvenient to disassemble due to the large diameter of the filter disc; since one connector 1 replaces the roots of two original fan-shaped units, the width of the connector 1 can be increased to twice the original fan-shaped root, the width is increased and integrally formed, so that the strength of the connector 1 is higher than that of the original narrow and long fan-shaped unit, the strength of the connection with the central axis is improved, and the service life of the fan-shaped unit is improved.

[0052] A hook seat 301 is provided on the sector plate handle 3, and the hook seat 301 is connected to the corresponding threaded mounting hole 103 via a fastener;

[0053] In the above embodiment: see Figure 5 The fastener includes a stud bolt 4 and a nut 5. One end of the stud bolt 4 is threaded into the threaded mounting hole 103, and the other end is threaded into the nut 5, and the nut 5 is squeezed on the end surface of the hook seat 301. During use, the sector unit is mainly disassembled. The sector unit is connected to the connector 1 through the hook seat 301 and the fastener. When disassembling, only the nut 5 of the fastener is loosened, and then the sector unit can be pulled out from the sector unit plug-in hole 102 after rotating it at a certain angle;

[0054] In the above embodiment, the nut 5 adopts a cap nut, and the cap nut 3 is welded by a flange face nut and a steel plate. The flange face can increase the contact area between the fan-shaped unit and the connector 1 to ensure effective sealing. The closed cavity of the cap nut can protect the end thread of the stud 4 from the impact of slurry and extend the service life.

[0055] One end of the sector plate handle 3 that cooperates with the sector unit plug-in hole 102 is cylindrical, so that the sector plate handle 3 can rotate along the axis of the cylindrical part.

[0056] For details, see Figure 6 , there are two hook seats 301 on the outer side of the middle part of a sector plate handle 3, and the two hook seats 301 are symmetrical about the axis center of the sector plate handle 3, the cross-section of the hook seat 301 is hook-shaped, and the side of the hook seat 301 has an abutment surface 302 that abuts against the circumferential surface of the stud bolt 4, and the end of the hook seat 301 away from the connecting piece 1 is a pressing surface 303 that abuts against the end face of the nut 5. In the locked state, the stud bolt 4 is in contact with the abutment surface 302, and the nut 5 is pressed on the pressing surface 303. When disassembly is required, it is only necessary to rotate the nut 5 to separate its end face from the pressing surface 303, and drive the hook seat 301 to rotate by rotating the sector plate handle 3 itself. After rotating to an angle where the hook seat 301 does not block the nut 5, pull out the rotating sector plate handle 3. Therefore, it is not necessary to completely unscrew the nut 5 during disassembly, and disassembly is more convenient.

[0057] A pad 6 is fixed to the end face of the connector 1 where the fan-shaped unit plug-in hole 102 is located. A positioning cavity is formed between the pad 6 and the corresponding hook seat 301, and the fastener passes through the positioning cavity. The cross-section of the pad 6 is arc-shaped. In the length direction of the fastener, the thickness of the pad 6 is equal to the thickness of the hook seat 301, which does not affect the quick release of the fan-shaped unit and increases the contact area with the end face of the nut 5, so that the compression of the nut 5 is more stable and not easy to loosen, and at the same time is beneficial to the sealing of the cap nut.

[0058] like Figure 5 As shown, in order to ensure the sealing of the connection between the connector 1 and the fan-shaped plate handle 3, a sealing ring 7 is provided at the connection between the two, the inner wall of the fan-shaped unit plug-in hole 102 has a step surface, and the plug-in end of the fan-shaped plate handle 3 also has a step surface, and the sealing ring 7 is placed between the two corresponding step surfaces.

[0059] The parts not described in detail in this embodiment are prior art.

[0060] It should be noted that although the utility model is described through the above embodiments, the utility model can also have other multiple embodiments. Without departing from the spirit and scope of the utility model, it is obvious that those skilled in the art can make various corresponding changes and deformations to the utility model, but these changes and deformations should all fall within the scope of protection of the attached claims of the utility model and their equivalents.

Claims

1. A removable sector plate for a large-diameter filter, characterized in that: It comprises a connecting piece (1) and a fan-shaped unit; The connecting piece (1) has a central axis hole interface (101) at one end and at least two fan-shaped unit plug holes (102) at the other end. The end surface of the connecting piece (1) where the fan-shaped unit plug holes (102) are located is provided with a threaded mounting hole (103); The fan-shaped unit comprises a fan-shaped plate body (2) and a fan-shaped plate handle (3) which are fixedly connected. After the end of the fan-shaped plate handle (3) is inserted into the fan-shaped unit insertion hole (102), the inner cavities of the connecting piece (1), the fan-shaped plate body (2) and the fan-shaped plate handle (3) are connected. A hook seat (301) is provided on the sector-shaped plate handle (3), and the hook seat (301) is connected to the corresponding threaded mounting hole (103) via a fastener.

2. The detachable sector plate of a large-diameter filter according to claim 1, characterized in that: The connecting piece (1) is Y-shaped, with a single-end end being a central axis hole interface (101) and a double-end end being two fan-shaped unit plug-in holes (102).

3. The detachable sector plate of a large-diameter filter according to claim 1, characterized in that: The fastener comprises a stud bolt (4) and a nut (5); One end of the stud bolt (4) is threaded into the threaded mounting hole (103), and the other end is threaded into the nut (5), so that the nut (5) is pressed against the end surface of the hook seat (301).

4. The detachable sector plate of a large-diameter filter according to claim 3, characterized in that: The nut (5) is a cap nut.

5. The detachable sector plate of a large-diameter filter according to claim 3, characterized in that: One end of the sector plate handle (3) that cooperates with the sector unit plug-in hole (102) is cylindrical.

6. The detachable sector plate of a large-diameter filter according to claim 5, characterized in that: The cross section of the hook seat (301) is hook-shaped, the side surface of the hook seat (301) has an abutment surface (302) abutting against the circumferential surface of the stud bolt (4), and the end of the hook seat (301) away from the connecting piece (1) is a pressing surface (303) abutting against the nut (5).

7. The detachable sector plate of a large-diameter filter according to claim 5, characterized in that: Two hook seats (301) are provided on the outer side of the middle part of a sector-shaped plate handle (3), and the two hook seats (301) are symmetrical about the axis center of the sector-shaped plate handle (3).

8. The detachable sector plate of a large-diameter filter according to claim 6, characterized in that: A backing plate (6) is fixed to the end surface of the connecting piece (1) where the fan-shaped unit plug-in hole (102) is located, and a positioning cavity is formed between the backing plate (6) and the corresponding hook seat (301), and the fastener passes through the positioning cavity.

9. The detachable sector plate of a large-diameter filter according to claim 8, characterized in that: The backing plate (6) has an arc-shaped cross section, and in the length direction of the fastener, the thickness of the backing plate (6) is equal to the thickness of the hook seat (301).

10. The detachable sector plate of a large-diameter filter according to claim 1, characterized in that: The inner wall of the fan-shaped unit plug-in hole (102) has a step surface, and the plug-in end of the fan-shaped plate handle (3) also has a step surface, and a sealing ring (7) is arranged between two corresponding step surfaces.

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