Scraper type filter with filter element assembly capable of being rapidly disassembled and assembled

Abstract

The utility model discloses a scraper type filter with a filter element assembly capable of being quickly disassembled and assembled, which comprises a filter body, a filter upper cover is arranged at the top of the filter body, an upper cover lifting assembly is arranged on one side of the filter body, a speed reducer assembly is arranged at the top of the filter upper cover, and the filter element assembly is further arranged in the filter body. A cleaning assembly is further arranged in the filter element assembly; an exhaust port is formed in the filter upper cover; the speed reducer assembly drives the internal cleaning assembly to clean the filter element assembly; the filter cylinder body and the filter upper cover are locked through the eyelet bolt, the disassembly and assembly do not need a special tool, the disassembly and assembly are convenient, and the upper cover lifting assembly is arranged to facilitate rapid opening and closing of the filter; the filter element assembly and the filter are connected without bolts, a simple assembly mode is adopted, and no part easy to fall exists in the filter, so that the risk that the part falls off during disassembly is avoided; and the filter element assembly can be disassembled as a whole by simply and quickly lifting out the filter element assembly, so that the quick disassembly and assembly effect can be achieved.

Description

Technical Field

[0001] The utility model particularly relates to a scraper-type filter with a filter element assembly that can be quickly disassembled and assembled. Background Art

[0002] The scraper filter is a self-cleaning filter that uses a scraper installed on a rotating spindle to continuously scrape the inner surface of the filter element. It is particularly suitable for separating granular solids and liquids and has been widely used in solid-liquid separation work in various industries.

[0003] The scraper-type filter is equipped with filter elements, main shafts and other components. In some scenarios, the filter elements need to be removed frequently for operation. For example, when there are materials that crystallize at low temperatures, the filter element assembly needs to be removed for cleaning after the filtration work is completed. However, the filter element assembly is generally fixed to the filter inside the filter with screws, thereby limiting the synchronous rotation of the filter element and the scraper, and at the same time tightening the sealing rings at both ends of the filter element. Since the filter element assembly and filter in the current filter industry are equipped with a large number of bolts, it is not quick and convenient to remove the filter element. In addition, the bolts on the filter element are easy to fall off when removing the filter element inside the filter, reducing the disassembly efficiency. In addition, when filtering toxic materials, if the filter cannot be opened quickly to remove the filter element, toxic gas may be easily released, posing a safety hazard.

[0004] Therefore, it is necessary to invent a scraper filter that can quickly disassemble and assemble the filter element assembly to solve the above problems. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a scraper-type filter with a filter element assembly that can be quickly disassembled and assembled, and the filter element can be quickly disassembled.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned object, the utility model provides the following technical solution: a scraper-type filter with a filter element assembly that can be quickly disassembled and assembled, comprising a filter body, a filter cover provided on the top of the filter body, a cover lifting assembly installed on one side, a reducer assembly installed on the top of the filter cover, a filter element assembly further provided inside the filter body, and a cleaning assembly further provided inside the filter element assembly;

[0009] The filter body comprises a filter cylinder, the upper and lower ends of the inner wall of the filter cylinder are provided with limiting rings, and the upper end of the limiting ring is provided with a plurality of cone head positioning columns;

[0010] The filter upper cover is provided with an exhaust port;

[0011] The reducer assembly includes a frame on which a reducer is fixed, and a drive shaft is provided at the bottom of the reducer passing through the frame and the filter cover;

[0012] The filter element assembly includes a filter element, and the upper and lower ends of the filter element are both provided with connecting rings, the upper connecting ring is provided with a plurality of rotation-limiting holes, the plurality of rotation-limiting holes cooperate with the plurality of cone head positioning columns, and the middle of the lower connecting ring is provided with a fixed shaft sleeve;

[0013] The cleaning assembly includes a pressure ring with multiple handles, a fixed shaft sleeve 2 in the middle of the pressure ring, a main shaft in the fixed shaft sleeve 2, the top of the main shaft is connected to the drive shaft, and multiple scraper assemblies are installed on the outside of the main shaft.

[0014] Preferably, the upper cover lifting assembly includes a fixed plate fixed to the outside of the filter cylinder, a lifter is fixed below it, and an inner sleeve is provided above it, a screw rod is provided on the lifter, and the screw rod is placed in the inner sleeve, and the upper part of the outer side of the inner sleeve is also connected to an outer sleeve, and a connecting plate is provided on the top of the outer sleeve, the top of the screw rod passes through the inner sleeve and the outer sleeve and is fixed on the connecting plate, one side of the connecting plate is fixed to the filter upper cover, and a support rib is provided between the connecting plate and the outer sleeve.

[0015] Preferably, a bearing matching the drive shaft is installed on the filter upper cover, and a mechanical seal is also provided on the drive shaft at the bottom of the filter upper cover, and the mechanical seal is placed inside the filter body.

[0016] Preferably, a liquid inlet is provided on the upper side of the filter cylinder, and a liquid outlet is provided on the lower side. The bottom of the filter cylinder is connected to a cone, and a sewage outlet is provided at the bottom of the cone. A sealing ring and a movable bolt are provided between the top of the filter cylinder and the filter cover. The movable bolt presses the sealing ring, that is, the filter cover is sealed at the top of the filter cylinder.

[0017] Preferably, a support ear is provided between the liquid inlet and the liquid outlet.

[0018] Preferably, a second sealing ring and a third sealing ring are respectively provided on the outside of the connecting ring, and the second sealing ring and the third sealing ring are correspondingly sealed on the limiting ring in the filter cylinder, and a plurality of fixing holes are also provided on the connecting ring.

[0019] Preferably, the pressure ring is provided with a plurality of screw holes corresponding to the fixing holes, and the pressure ring is fixed to the connecting ring by a plurality of fixing bolts. The upper and lower ends of the main shaft are respectively installed with an upper sleeve and a lower sleeve. The upper sleeve is arranged between the upper part of the main shaft and the bottom of the second fixed sleeve, and the lower sleeve is arranged between the bottom of the main shaft and the first fixed sleeve.

[0020] Preferably, the scraper assembly comprises a scraper frame, which is mounted outside the main shaft and has a scraper blade mounted thereon.

[0021] Preferably, the outer diameter of the upper end of the cone head positioning column is smaller than the inner diameter of the rotation limiting hole.

[0022] Compared with the prior art, the beneficial effects of the above technical solution of the utility model are:

[0023] 1. The utility model locks the filter cylinder and the filter cover with a swing bolt, and no special tools are required for disassembly and assembly. The upper cover lifting assembly is configured to lift and rotate the upper cover. The filter can be opened and closed by itself without the help of external tools, saving time and effort, and facilitating rapid opening and closing of the filter.

[0024] 2. The filter element assembly and the filter in this utility model are not connected by bolts, and a simple assembly method is adopted. The sealing ring and other parts are all set on the filter element assembly. There are no easily falling parts in the filter, which avoids the risk of parts falling during disassembly and is convenient for quick disassembly and cleaning.

[0025] 3. The entire filter element assembly of the utility model can be disassembled by simply and quickly lifting it out. When installing the filter element assembly, it only requires simple and quick hole positioning and pressing down, thus achieving a quick disassembly and assembly effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the filter element assembly and cleaning assembly of the present invention;

[0029] Figure 3 This is an exploded schematic diagram of the overall structure of the filter element assembly and cleaning assembly of the present invention;

[0030] Figure 4 It is a cross-sectional schematic diagram of the upper cover lifting assembly and the filter upper cover disassembly structure of the present invention.

[0031] Description of reference numerals:

[0032] 1. Filter body; 11. Filter cylinder; 12. Stop ring; 13. Cone head positioning column; 14. Liquid inlet; 15. Liquid outlet; 16. Cone; 17. Drain outlet; 18. Sealing ring 1; 19. Swing bolt; 2. Filter cover; 21. Exhaust port; 3. Cover lifting assembly; 31. Fixing plate; 32. Lifter; 33. Inner sleeve; 34. Screw; 35. Outer sleeve; 36. Connecting plate; 37. Support rib; 4. Reducer assembly; 41. Frame; 42. Reducer; 4 3. Drive shaft; 44. Bearing; 45. Mechanical seal; 5. Filter element assembly; 51. Filter element; 52. Connecting ring; 53. Rotation limit hole; 54. Fixed sleeve 1; 55. Sealing ring 2; 56. Sealing ring 3; 57. Fixed hole; 6. Cleaning assembly; 61. Pressing ring; 62. Handle; 63. Fixed sleeve 2; 64. Main shaft; 65. Scraper assembly; 651. Scraper holder; 652. Scraper blade; 66. Screw hole; 67. Fixing bolt; 68. Upper sleeve; 69. Lower sleeve; 7. Support ear. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] The utility model provides Figure 1-4 The scraper filter with a quickly removable filter element assembly shown in the figure comprises a filter body 1, a filter cover 2 is provided on the top of the filter body 1, a cover lifting assembly 3 is installed on one side, a reducer assembly 4 is installed on the top of the filter cover 2, a filter element assembly 5 is further provided inside the filter body 1, and a cleaning assembly 6 is further provided inside the filter element assembly 5;

[0035] Specifically, the filter body 1 includes a filter cylinder 11, and the upper and lower ends of the inner wall of the filter cylinder 11 are provided with limiting rings 12, and the upper end limiting ring 12 is provided with a plurality of cone head positioning columns 13;

[0036] Specifically, the filter upper cover 2 is provided with an exhaust port 21;

[0037] Specifically, the reducer assembly 4 includes a frame 41, on which a reducer 42 is fixed. The bottom of the reducer 42 passes through the frame 41 and the filter cover 2 and is provided with a drive shaft 43;

[0038] Specifically, the filter element assembly 5 includes a filter element 51, and a connecting ring 52 is provided at the upper and lower ends of the filter element 51. The upper connecting ring 52 is provided with a plurality of rotation-limiting holes 53, and the plurality of rotation-limiting holes 53 cooperate with a plurality of cone head positioning columns 13. A fixed shaft sleeve 54 is provided in the middle of the lower connecting ring 52;

[0039] In this embodiment, a reducer assembly 4 is provided on the filter cover 2, which includes a reducer 42 and a frame 41. A drive shaft 43 is installed at the center of the reducer 42. A bearing 44 and a mechanical seal 45 are installed on the filter cover 2, which can enable the drive shaft 43 to rotate while keeping the liquid from leaking out. The filter discharges the internal air through the exhaust port 21, and the mechanical seal 45 is submerged in the liquid inside the filter body 1, so that the friction surface of the mechanical seal 45 can be cooled.

[0040] In this embodiment, a sealing ring 18 is provided between the filter cylinder 11 and the filter cover 2, which are compressed by a swing bolt 19 to prevent leakage. The filter element assembly 5 is installed inside the filter cylinder 11. The upper opening of the filter element 51 is provided with a liquid inlet 14, and the lower opening is connected to the sewage outlet 17. The lower portion of the filter cylinder 11 is provided with a liquid outlet 15. In this way, the filtrate is filtered from the interior of the filter element 51 to the outside, and solid impurity particles are intercepted on the inner surface of the filter element 51. As the main shaft 64 and the scraper blade 652 continuously rotate to scrape impurities from the inner surface, the filter element 51 inside the filter achieves self-cleaning. Impurities settle to the cone 16 and are discharged through the sewage outlet 17.

[0041] Reference Figure 2-3 The cleaning assembly 6 includes a pressure ring 61, which is provided with multiple handles 62. A fixed shaft sleeve 2 63 is provided in the middle of the pressure ring 61. A main shaft 64 is provided in the fixed shaft sleeve 2 63. The top of the main shaft 64 is connected to the drive shaft 43, and multiple scraper assemblies 65 are installed on the outside of the main shaft 64.

[0042] Reference Figure 4 The upper cover lifting assembly 3 includes a fixing plate 31 fixed to the outside of the filter cylinder 11, with an elevator 32 fixed below it, and an inner sleeve 33 provided above it. A screw rod 34 is provided on the elevator 32, and the screw rod 34 is placed in the inner sleeve 33. The upper part of the outer side of the inner sleeve 33 is also connected to an outer sleeve 35. A connecting plate 36 is provided on the top of the outer sleeve 35. The top of the screw rod 34 passes through the inner sleeve 33 and the outer sleeve 35 and is fixed on the connecting plate 36. One side of the connecting plate 36 is fixed to the filter upper cover 2, and a supporting rib 37 is provided between the connecting plate 36 and the outer sleeve 35.

[0043] Specifically, a bearing 44 that matches the drive shaft 43 is installed on the filter upper cover 2 . A mechanical seal 45 is also provided on the drive shaft 43 at the bottom of the filter upper cover 2 . The mechanical seal 45 is placed inside the filter body 1 .

[0044] In this embodiment, a lug 7 is provided in the middle of the filter housing 11 to facilitate filter installation and fixation. A fixing plate 31 is provided on the outside of the filter, with a lift 32 mounted below and an inner sleeve 33 mounted above. A screw 34 of the lift 32 passes through the interior of the inner sleeve 33, then passes through a connecting plate 36 at the front and is locked with a nut. The connecting plate 36 is fixed to the filter cover 2 and is also fixedly connected to the outer sleeve 35. Support ribs 37 are provided between the connecting plate 36 and the outer sleeve 35. Driving the lift 32 causes the screw 34 to move up and down, driving the connecting plate 36 and the filter cover 2 up and down, allowing the filter to be quickly opened and closed. Because the center of gravity of the filter cover 2, reducer 42, and other components is not aligned with the axis of the screw 34, the outer sleeve 35 tends to tilt. However, the inner sleeve 33 limits this tilting and prevents the screw 34 from being subjected to tilting forces, allowing for smooth up and down movement.

[0045] Reference Figure 1 A liquid inlet 14 is provided on the upper side of the filter cylinder 11, and a liquid outlet 15 is provided on the lower side. A cone 16 is connected to the bottom of the filter cylinder 11, and a sewage outlet 17 is provided at the bottom of the cone 16. A sealing ring 18 and a movable bolt 19 are provided between the top of the filter cylinder 11 and the filter cover 2. The movable bolt 19 presses the sealing ring 18, that is, the filter cover 2 is sealed to the top of the filter cylinder 11.

[0046] Specifically, a support ear 7 is provided between the liquid inlet 14 and the liquid outlet 15 .

[0047] Reference Figure 2-3 A second sealing ring 55 and a third sealing ring 56 are respectively provided on the outside of the connecting ring 52. The second sealing ring 55 and the third sealing ring 56 are correspondingly sealed on the limiting ring 12 inside the filter cylinder 11. A plurality of fixing holes 57 are also provided on the connecting ring 52.

[0048] Specifically, the pressure ring 61 is provided with a plurality of screw holes 66 corresponding to the fixing holes 57. The pressure ring 61 is fixed to the connecting ring 52 by a plurality of fixing bolts 67. The upper and lower ends of the main shaft 64 are respectively installed with an upper sleeve 68 and a lower sleeve 69. The upper sleeve 68 is arranged between the upper part of the main shaft 64 and the bottom of the fixed sleeve 2 63, and the lower sleeve 69 is arranged between the bottom of the main shaft 64 and the fixed sleeve 1 54.

[0049] Specifically, the scraper assembly 65 includes a scraper frame 651 , which is installed outside the main shaft 64 and has a scraper blade 652 installed thereon.

[0050] Specifically, the outer diameter of the upper end of the cone head positioning column 13 is smaller than the inner diameter of the rotation limiting hole 53 .

[0051] In this embodiment, a connecting ring 51 is provided at both the upper and lower ends of the filter element 51, and a second sealing ring 55 and a third sealing ring 56 are provided on the outer sides thereof, respectively. The installation with the filter barrel 11 is radially sealed (side sealing). This arrangement creates a turbid liquid chamber on the inner side of the filter element 51 and a clear liquid chamber on the outer side, thereby preventing solid impurities from entering the liquid outlet 15. A rotation-limiting hole 53 is provided on the upper portion of the filter element assembly 5. When installed in conjunction with the cone-shaped positioning post 13, the rotation of the filter element assembly 5 is limited. The outer diameter of the upper end of the cone-shaped positioning post 13 is smaller than the inner diameter of the rotation-limiting hole 53. This facilitates quick alignment during installation of the filter element assembly 5, allowing for quick assembly and disassembly of the filter element assembly 5. A handle 62 is provided on the upper portion of the pressure ring 61 in the cleaning assembly 6. After the filter element assembly 5 and the cleaning assembly 6 are installed, the filter cover 2 presses them down, preventing the filter element assembly 5 and the cleaning assembly 6 from moving up and down. The pressure ring 61 and filter element 51 are locked together by bolts, ensuring they are coaxial. A lower sleeve 69 is located between the main shaft 64 and the lower portion of the filter element 51, while an upper sleeve 68 is located at the center of the pressure ring 61, reducing friction during rotation of the main shaft 64. A scraper holder 651 and a scraper blade 652 are mounted on the main shaft 64. Driven by the reduction motor 42, the scraper blade 652 rotates to remove impurities from the inner surface of the filter element 51. The rationally configured filter element assembly structure is connected to the filter body without screws, allowing for quick assembly and disassembly after the filter is opened.

[0052] In this embodiment, an inner and outer sleeve-type upper cover lifting assembly 3 is configured for quickly raising and lowering the upper cover. The sealing ring of the filter element is set on the filter element assembly and is sealed with the radial side of the filter cylinder 11. There are no other easily detachable parts inside the filter. A rotation limiting hole 53 is set on the filter element 51, which cooperates with the cone head positioning column 13 inside the filter to limit the rotation of the filter element assembly 5. The pressure ring 61 is fixed to the filter element 51 by bolts. A handle 62 is set on the pressure ring 61. After the upper cover 2 presses it, the filter element assembly 5 is limited to move up and down. At the same time, the filter element assembly can be quickly disassembled and assembled by manually holding the handle 62. The pressure ring 61 and the filter element 51 are fixed to each other, so that the main shaft 64, the sleeve and other components can be disassembled and assembled as a whole at one time, avoiding the installation of related accessories inside the filter.

[0053] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A scraper filter with a filter element assembly that can be quickly disassembled and assembled, characterized in that: The filter body (1) comprises a filter upper cover (2) provided on the top of the filter body (1), a top cover lifting assembly (3) installed on one side, a reducer assembly (4) installed on the top of the filter upper cover (2), a filter element assembly (5) provided inside the filter body (1), and a cleaning assembly (6) provided inside the filter element assembly (5); The filter body (1) comprises a filter cylinder (11), wherein the upper and lower ends of the inner wall of the filter cylinder (11) are provided with limiting rings (12), and the upper end of the limiting ring (12) is provided with a plurality of cone-shaped positioning columns (13); The filter upper cover (2) is provided with an exhaust port (21); The reducer assembly (4) comprises a frame (41) on which a reducer (42) is fixed, and a driving shaft (43) is provided at the bottom of the reducer (42) passing through the frame (41) and the filter upper cover (2); The filter element assembly (5) includes a filter element (51), and the upper and lower ends of the filter element (51) are both provided with connecting rings (52), the upper connecting ring (52) is provided with a plurality of rotation-limiting holes (53), the plurality of rotation-limiting holes (53) cooperate with a plurality of cone head positioning columns (13), and the middle of the lower connecting ring (52) is provided with a fixed shaft sleeve (54); The cleaning assembly (6) includes a pressure ring (61), a plurality of handles (62) are provided on the pressure ring (61), a second fixed shaft sleeve (63) is provided in the middle of the pressure ring (61), a main shaft (64) is provided in the second fixed shaft sleeve (63), the top of the main shaft (64) is connected to the driving shaft (43), and a plurality of scraper assemblies (65) are installed on the outside of the main shaft (64).

2. The scraper-type filter with a quickly detachable filter element assembly according to claim 1, characterized in that: The upper cover lifting assembly (3) includes a fixing plate (31) fixed to the outside of the filter cylinder (11), a lifter (32) fixed below the fixing plate, and an inner sleeve (33) provided above the fixing plate. A screw rod (34) is provided on the lifting plate (32), and the screw rod (34) is placed in the inner sleeve (33). The upper outer side of the inner sleeve (33) is also connected to an outer sleeve (35). A connecting plate (36) is provided on the top of the outer sleeve (35). The top of the screw rod (34) passes through the inner sleeve (33) and the outer sleeve (35) and is fixed to the connecting plate (36). One side of the connecting plate (36) is fixed to the filter upper cover (2), and a supporting rib (37) is provided between the connecting plate (36) and the outer sleeve (35).

3. The scraper-type filter with a quickly detachable filter element assembly according to claim 1, characterized in that: A bearing (44) that matches the drive shaft (43) is mounted on the filter upper cover (2). A mechanical seal (45) is also provided on the drive shaft (43) at the bottom of the filter upper cover (2). The mechanical seal (45) is placed inside the filter body (1).

4. The scraper-type filter with a quickly detachable filter element assembly according to claim 1, characterized in that: The filter cylinder (11) is provided with a liquid inlet (14) on the upper side and a liquid outlet (15) on the lower side. The bottom of the filter cylinder (11) is connected to a cone (16). The bottom of the cone (16) is provided with a sewage outlet (17). A sealing ring (18) and a movable bolt (19) are provided between the top of the filter cylinder (11) and the filter upper cover (2). The movable bolt (19) presses the sealing ring (18), that is, the filter upper cover (2) is sealed to the top of the filter cylinder (11).

5. The scraper-type filter with a quickly detachable filter element assembly according to claim 4, characterized in that: A support ear (7) is provided between the liquid inlet (14) and the liquid outlet (15).

6. The scraper-type filter with a quickly detachable filter element assembly according to claim 1, characterized in that: A second sealing ring (55) and a third sealing ring (56) are respectively provided on the outside of the connecting ring (52). The second sealing ring (55) and the third sealing ring (56) are correspondingly sealed on the limiting ring (12) in the filter cylinder (11). The connecting ring (52) is also provided with a plurality of fixing holes (57).

7. The scraper-type filter with a quickly detachable filter element assembly according to claim 6, characterized in that: The pressure ring (61) is provided with a plurality of screw holes (66) corresponding to the fixing holes (57), and the pressure ring (61) is fixed to the connecting ring (52) by a plurality of fixing bolts (67). The upper and lower ends of the main shaft (64) are respectively installed with an upper sleeve (68) and a lower sleeve (69), the upper sleeve (68) is arranged between the upper part of the main shaft (64) and the bottom of the second fixing sleeve (63), and the lower sleeve (69) is arranged between the bottom of the main shaft (64) and the first fixing sleeve (54).

8. The scraper-type filter with a quickly detachable filter element assembly according to claim 1, characterized in that: The scraper assembly (65) comprises a scraper frame (651), which is mounted outside the main shaft (64) and has a scraper blade (652) mounted thereon.

9. The scraper-type filter with a quickly detachable filter element assembly according to claim 1, characterized in that: The outer diameter of the upper end of the cone head positioning column (13) is smaller than the inner diameter of the rotation limiting hole (53).

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