Bag type filter assembly convenient to maintain

Abstract

The utility model discloses a bag type filter assembly convenient to maintain, and belongs to the technical field of bag type filters, the bag type filter assembly comprises a bag type filter body and a liquid inlet pipe arranged on the bag type filter body, the lower end of the bag type filter body is provided with a liquid discharging pipe used for discharging liquid, and the lower end of the bag type filter body is provided with a liquid outlet pipe used for discharging liquid. The upper end of the bag type filter body is detachably connected with a top cover, a cloth bag filter screen for filtering is arranged in the bag type filter body, and an exchange mechanism is arranged in the bag type filter body; during use, the cloth bag filter screen on the liquid-permeable fixed frame right corresponds to the liquid inlet pipe, and after the cloth bag filter screen is used for a period of time, the fixed shaft rod can be driven by the servo motor to rotate by 90 degrees for directly replacing a new cloth bag filter screen for continuous use, so that the replacement frequency of the cloth bag filter screen can be greatly reduced by adopting the replacement mode, and the replacement efficiency of the cloth bag filter screen is improved. Frequent shutdown of the bag type filter body is avoided, and the overall filtering efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of bag filters, and in particular to a bag filter assembly that can be easily maintained. Background Art

[0002] Bag filter is a multi-purpose filtering equipment with novel structure, small size, simple and flexible operation, closed working and strong applicability. The filter bag is supported by a metal mesh basket inside the bag filter. The liquid flows in from the inlet, is filtered by the filter bag and flows out from the outlet. Impurities are intercepted in the filter bag and can continue to be used after replacing the filter bag.

[0003] During the use of bag filters, the impurities to be filtered will be evenly attached to the filter bags. The impurities can easily cause large-scale blockage of the filter bags, which can easily affect the filtering effect of the filter bags. This also causes the staff to suspend the work of the filter and frequently remove, clean and replace the filter bags.

[0004] Therefore, the present application provides a bag filter assembly that can be easily maintained to solve the above problems. Summary of the Invention

[0005] The present application provides a bag filter assembly that can be easily maintained, aiming to solve the problem in the background art that the filter bags in the existing bag filters are easily clogged due to accumulation of impurities during use, resulting in the need to frequently shut down the equipment to replace the filter bags.

[0006] To achieve the above objectives, the present application provides the following technical solutions: a bag filter assembly that can be easily maintained, comprising a bag filter body and a liquid inlet pipe provided on the bag filter body, a drain pipe for draining liquid being installed at the lower end of the bag filter body, a top cover being detachably connected to the upper end of the bag filter body, and a bag filter screen for filtering being provided inside the bag filter body;

[0007] A replacement mechanism is provided inside the bag filter body;

[0008] The replacement mechanism includes a fixing ring fixedly mounted on the inner wall of the bag filter body and a partition plate arranged on the fixing ring, the upper end of the fixing ring is provided with a plurality of liquid-permeable solid frames for intersecting with the partition plate in a ring-shaped manner, a fixing shaft rod is fixedly mounted at the center of the partition plate, the number of the bag filter screens is equal to the liquid-permeable solid frames, and the bag filter screen is located inside the liquid-permeable solid frame, a fixing frame is installed at the bottom of the inner wall of the bag filter body, a servo motor for connecting to the fixed shaft rod is provided at the upper end of the fixing frame, the partition plate is cross-shaped, and when installed inside the bag filter body, it can be divided into four independent spaces, and is driven by the servo motor to rotate ninety degrees with the fixed shaft rod for directly replacing the new bag filter screen for continued use.

[0009] Preferably, the base of the servo motor is detachably connected to the upper end of the fixing bracket, and the output end of the servo motor is fixedly connected to an end of the fixing shaft away from the top cover.

[0010] Preferably, a limiting slider is relatively installed on the bag filter net, and a movable groove for moving the limiting slider is provided on the partition plate. The movable groove provided on the partition plate is mainly suitable for facilitating the installation of the liquid-permeable solid frame and the dragging when it is removed later.

[0011] Preferably, a limiting sliding groove is provided on the inner side of the fixing ring, and a protrusion for slidingly installing in the limiting sliding groove is fixedly mounted on the partition plate.

[0012] Preferably, a positioning rod is installed relative to the upper end of the bag filter, and a slot for inserting the positioning rod is opened on the partition plate.

[0013] The bag filter assembly is designed by designing the traditional single filter bag into a multi-bag type, and multiple bag filters are respectively installed in the corresponding liquid-permeable solid frame and divided into four groups by a partition plate. They are used to filter chemical liquids independently. When in use, the bag filter on the liquid-permeable solid frame corresponds to the liquid inlet pipe. After a period of use, it can be driven by a servo motor and rotated 90 degrees with a fixed shaft to directly replace the new bag filter for continued use. This replacement method can greatly reduce the frequency of replacing the bag filter, avoid frequent shutdown of the bag filter body, and improve the overall filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a bag filter assembly that can be easily maintained;

[0015] Figure 2 Schematic diagram of the structure of the positioning frame;

[0016] Figure 3Schematic diagram of the structure of the liquid-permeable solid frame;

[0017] Figure 4 Schematic diagram of the structure of the partition plate;

[0018] Figure 5 It is a structural diagram of the limit slider;

[0019] Figure 6 Schematic diagram of the structure of the fixed ring.

[0020] In the picture:

[0021] 1. Bag filter body; 2. Liquid inlet pipe; 3. Top cover; 4. Liquid discharge pipe; 5. Exchange mechanism; 51. Partition plate; 511. Movable groove; 512. Slot; 513. Bump; 52. Bag filter; 53. Fixing ring; 54. Liquid-permeable fixing frame; 55. Fixed shaft; 56. Positioning frame rod; 57. Limiting slider; 58. Limiting slide; 6. Servo motor; 61. Fixing frame. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] This embodiment provides a bag filter assembly that can be easily maintained. Figure 1-6 As shown, the bag filter assembly includes a bag filter body 1 and a liquid inlet pipe 2 provided on the bag filter body 1. A drain pipe 4 for draining liquid is installed at the lower end of the bag filter body 1. A top cover 3 is detachably connected to the upper end of the bag filter body 1. A bag filter 52 for filtering is provided inside the bag filter body 1.

[0024] A replacement mechanism 5 is provided inside the bag filter body 1;

[0025] The replacement mechanism 5 includes a fixing ring 53 fixedly mounted on the inner wall of the bag filter body 1 and a partition plate 51 arranged on the fixing ring 53. The upper end of the fixing ring 53 is provided with a plurality of liquid-permeable solid frames 54 for intersecting with the partition plate 51 in a ring shape. A fixed shaft 55 is fixedly mounted at the center of the partition plate 51. The number of bag filters 52 is equal to the liquid-permeable solid frames 54, and the bag filters 52 are located inside the liquid-permeable solid frames 54. A fixing frame 61 is installed at the bottom of the inner wall of the bag filter body 1, and a servo motor 6 for connecting to the fixed shaft 55 is provided at the upper end of the fixing frame 61.

[0026] Specifically, the fixing ring 53 is fixedly installed on the inner wall of the bag filter body 1, mainly serving to limit the rotation of the partition plate 51 to prevent the partition plate 51 from tilting on one side during rotation. The partition plate 51 is cross-shaped and can be divided into four independent spaces when installed inside the bag filter body 1, which are used to correspond to the four bag filter screens 52 and the liquid-permeable fixed frame 54 respectively. Each time in use, you only need to align the bag filter screen 52 with the liquid inlet pipe 2.

[0027] The base of the servo motor 6 is detachably connected to the upper end of the fixing bracket 61 , and the output end of the servo motor 6 is fixedly connected to the end of the fixing shaft 55 away from the top cover 3 .

[0028] More specifically, the servo motor 6 is a long-term driving device in the prior art, and its surface is coated with a waterproof coating. The fixing frame 61 supports and fixes the servo motor 6 .

[0029] A limit slider 57 is relatively mounted on the bag filter 52 , and a movable groove 511 for the limit slider 57 to move is provided on the partition plate 51 .

[0030] It should be noted that the liquid-permeable frame 54 is a stainless steel mesh frame used to shape the bag filter 52, and has liquid-permeable through holes on its surface. The movable groove 511 provided on the partition plate 51 is mainly used to facilitate the installation of the liquid-permeable frame 54 and the dragging when it is removed later.

[0031] A limiting sliding groove 58 is provided on the inner side of the fixing ring 53 , and a protrusion 513 for slidingly mounting in the limiting sliding groove 58 is fixedly mounted on the partition plate 51 .

[0032] It is worth mentioning that the limiting sliding groove 58 provided on the inner side of the fixing ring 53 is mainly used for embedding the protrusion 513 installed on the partition plate 51 and can be limitedly rotated by the drive of the servo motor 6.

[0033] A positioning rod 56 is mounted on the upper end of the bag filter 52 , and a slot 512 for inserting the positioning rod 56 is provided on the partition plate 51 .

[0034] The positioning rod 56 installed on the bag filter 52 is plugged into the slot 512 provided on the partition plate 51 , so that the positioning rod 56 will not deflect when facing the impact of liquid, and it is also convenient to remove the bag filter 52 later.

[0035] During use, the traditional single filter bag is designed into a multi-bag type, and multiple bag filters 52 are respectively installed in the corresponding liquid-permeable solid frame 54, and are divided into four groups by the partition plate 51, and are used to filter the chemical liquid independently. When in use, the bag filter 52 on the liquid-permeable solid frame 54 corresponds to the liquid inlet pipe 2. After a period of use, it can be driven by the servo motor 6 to rotate ninety degrees with the fixed shaft 55 to directly replace the new bag filter 52 for continued use. This replacement method can greatly reduce the frequency of replacing the bag filter 52, avoid frequent shutdown of the bag filter body 1, and improve the overall filtration efficiency. When replacing the bag filter 52 later, you only need to open the top cover 3 and lift the positioning frame rod 56 to remove the bag filter 52 from the inside of the liquid-permeable solid frame 54.

[0036] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A bag filter assembly that can be easily maintained, comprising a bag filter body (1) and a liquid inlet pipe (2) arranged on the bag filter body (1); a liquid discharge pipe (4) for discharging liquid is installed at the lower end of the bag filter body (1); a top cover (3) is detachably connected to the upper end of the bag filter body (1); and a bag filter (52) for filtering is arranged inside the bag filter body (1); Its characteristics are: A replacement mechanism (5) is provided inside the bag filter body (1); The exchange mechanism (5) comprises a fixing ring (53) fixedly mounted on the inner wall of the bag filter body (1) and a partition plate (51) arranged on the fixing ring (53); a plurality of liquid-permeable solid frames (54) for intersecting with the partition plate (51) are distributed in an annular manner on the upper end of the fixing ring (53); a fixing shaft (55) is fixedly mounted at the center of the partition plate (51); the number of the bag filter screens (52) is equal to the number of the liquid-permeable solid frames (54), and the bag filter screens (52) are located inside the liquid-permeable solid frames (54); a fixing frame (61) is mounted on the bottom of the inner wall of the bag filter body (1); a servo motor (6) for connecting to the fixing shaft (55) is arranged on the upper end of the fixing frame (61).

2. The conveniently maintainable bag filter assembly according to claim 1, characterized in that: The base of the servo motor (6) is detachably connected to the upper end of the fixing frame (61), and the output end of the servo motor (6) is fixedly connected to the end of the fixing shaft (55) away from the top cover (3).

3. The conveniently maintainable bag filter assembly according to claim 2, characterized in that: A limiting slider (57) is relatively mounted on the bag filter (52), and a movable groove (511) for the movement of the limiting slider (57) is provided on the partition plate (51).

4. The conveniently maintainable bag filter assembly according to claim 3, characterized in that: A limiting sliding groove (58) is provided on the inner side of the fixing ring (53), and a protrusion (513) for slidingly mounting on the limiting sliding groove (58) is fixedly mounted on the partition plate (51).

5. The conveniently maintainable bag filter assembly according to claim 4, characterized in that: A positioning rod (56) is mounted relative to the upper end of the bag filter (52), and a slot (512) for inserting the positioning rod (56) is provided on the partition plate (51).

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