Bag type filter with filter bag convenient to replace

Abstract

The utility model relates to the technical field of bag type filters, and discloses a bag type filter convenient for replacing a filter bag, which comprises a filter tank, a sealing cover is arranged at the top of the filter tank, an air inlet is arranged in the sealing cover, an air outlet is arranged in the filter tank, a connecting seat is fixedly connected to the outer wall of the filter tank, and the connecting seat is fixedly connected to the outer wall of the filter tank. A connecting block is fixedly connected to the outer wall of the sealing cover, the outer wall of the connecting block is slidably connected to the interior of the connecting base, first limiting plates which are symmetrically arranged are slidably connected to the interior of the connecting block, a clamping block is fixedly connected to one side of each first limiting plate, and the outer wall of each clamping block is embedded into the connecting base. According to the utility model, the pressing block is pressed to enable the top block to retract the clamping block into the connecting block, so that the clamping block is separated from the connecting seat to achieve the effect of quickly detaching the top cover, and the problem that the time for replacing a filter bag is long as a large number of bolts need to be manually detached when the filter tank and the top cover are connected through the bolts between the flanges is solved; and the replacement efficiency of the bag filter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bag filters, in particular to a bag filter with convenient filter bag replacement. Background Art

[0002] Bag filter is a common industrial filtration equipment used to remove solid particles from air or liquid. Its working principle is similar to using a bag to capture particulate matter to ensure that impurities in liquid or gas are effectively filtered. Industrial production usually requires continuous operation, so the maintenance time should be as short as possible, so it is necessary to use a bag filter that is easy to replace the filter bag.

[0003] During the use of traditional bag filters, the sealing and disassembly mechanism is set up, and the mutual cooperation between the structures on the shell can improve the installation sealing degree of the filter bag, thereby avoiding the occurrence of poor filtering effect caused by filtrate leakage.

[0004] However, it does not solve the problem that when disassembling the filter tank, a large number of bolts need to be manually removed because the filter tank and the top cover are connected through bolts between the flanges. When disassembling the top cover, it takes a long time to replace the filter bag, affecting the replacement efficiency of the bag filter. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a bag filter that is convenient for replacing filter bags, aiming to improve the problem that the filter tank and the top cover are connected by bolts through flanges, and a large number of bolts need to be manually removed, and the top cover needs to be disassembled, resulting in a long time for replacing the filter bags.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bag filter that is convenient for replacing filter bags, comprising a filter tank, a sealing cover is arranged on the top of the filter tank, an air inlet is opened inside the sealing cover, and an air outlet is opened inside the filter tank, the outer wall of the filter tank is fixedly connected to a connecting seat, the outer wall of the sealing cover is fixedly connected to a connecting block, the outer wall of the connecting block is slidably connected to the inside of the connecting seat, and a symmetrically arranged limit plate 1 is slidably connected to the inside of the connecting block, a clamping block is fixedly connected to one side of the limit plate 1, the outer wall of the clamping block is embedded in the inside of the connecting seat, a telescopic rod 1 is arranged inside the connecting block, a second spring is sleeved on the outer wall of the telescopic rod 1, a limit plate 2 is slidably connected to the inside of the connecting seat, a pressing block is fixedly connected to one side of the limit plate 2, and a top block is fixedly connected to the other side of the limit plate 2, and a reset component is arranged on the outer wall of the top block.

[0007] As a further description of the above technical solution:

[0008] The reset assembly includes a third spring, the interior of the third spring is sleeved on the outer wall of the top block, one end of the third spring is fixedly connected to the other side of the second limiting plate, and the other end of the third spring is fixedly connected to the inside of the connecting seat.

[0009] As a further description of the above technical solution:

[0010] The two ends of the telescopic rod 1 and the second spring are fixedly connected between the limiting plate 1.

[0011] As a further description of the above technical solution:

[0012] A partition is fixedly connected inside the filter tank, a frame is slidably connected inside the filter tank, a filter bag is fixedly connected inside the frame, and a card slot is opened inside the frame.

[0013] As a further description of the above technical solution:

[0014] A sealing ring is fixedly connected to the bottom of the frame, and the bottom of the sealing ring is attached to the top of the partition.

[0015] As a further description of the above technical solution:

[0016] The filter tank is internally slidably connected with a limiting plate three, one side of the limiting plate three is fixedly connected with a hemispherical column, and the outer wall of the hemispherical column is embedded in the slot.

[0017] As a further description of the above technical solution:

[0018] A telescopic rod 2 is arranged inside the filter tank, and a compression spring is sleeved on the outer wall of the telescopic rod 2. One end of the telescopic rod 2 and the compression spring are fixedly connected to the other side of the limit plate 3, and the other end of the telescopic rod 2 and the compression spring are fixedly connected inside the filter tank.

[0019] As a further description of the above technical solution:

[0020] A support ring 1 is fixedly connected to the bottom of the sealing cover, a support ring 2 is slidably connected inside the support ring 1, a first spring is arranged inside the support ring 1, one end of the first spring is fixedly connected inside the support ring 1, and the other end of the first spring is fixedly connected to the top of the support ring 2.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, firstly, the pressing block is pressed to make the top block retract the card block into the inside of the connecting block, thereby separating the card block from the connecting seat, and then the sealing cover and the filter tank are disassembled, thereby achieving the effect of quickly disassembling the top cover, solving the problem that the filter tank and the top cover are connected by bolts between flanges, and a large number of bolts need to be manually disassembled, and the time for replacing the filter bag is long when the top cover is disassembled, thereby improving the replacement efficiency of the bag filter.

[0023] 2. In the utility model, the frame is inserted into the filter tank, and the hemispherical column inside the filter tank is embedded in the card slot on the frame, achieving the effect of pre-positioning the filter bag, solving the problem that the traditional filter bag cannot fit tightly between the partitions during installation, causing unfiltered air to overflow from the gaps, affecting the filtering efficiency of the bag filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a bag filter for convenient filter bag replacement proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of a tank body of a bag filter for convenient filter bag replacement proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of a connection block of a bag filter for convenient filter bag replacement proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the sealing ring structure of a bag filter for convenient filter bag replacement proposed by the utility model;

[0028] Figure 5 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0029] Legend:

[0030] 1. Filter canister; 2. Sealing cover; 3. Air inlet; 4. Air outlet; 5. Connecting block; 6. Connecting seat; 7. Support ring one; 8. Support ring two; 9. First spring; 10. Limiting plate one; 11. Block; 12. Telescopic rod one; 13. Second spring; 14. Limiting plate two; 15. Pressing block; 16. Third spring; 17. Top block; 18. Partition plate; 19. Frame; 20. Filter bag; 21. Sealing ring; 22. Slot; 23. Limiting plate three; 24. Hemispherical column; 25. Telescopic rod two; 26. Compression spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: a bag filter for convenient replacement of filter bags, including a filter tank 1, a sealing cover 2 is arranged on the top of the filter tank 1, an air inlet 3 is opened inside the sealing cover 2, an air outlet 4 is opened inside the filter tank 1, a connecting seat 6 is fixedly connected to the outer wall of the filter tank 1, a connecting block 5 is fixedly connected to the outer wall of the sealing cover 2, the outer wall of the connecting block 5 is slidably connected to the inside of the connecting seat 6, a symmetrically arranged limiting plate 10 is slidably connected to the inside of the connecting block 5, a clamping block 11 is fixedly connected to one side of the limiting plate 10, the outer wall of the clamping block 11 is embedded in the inside of the connecting seat 6, and a telescopic rod is arranged inside the connecting block 5 A 12, a second spring 13 is sleeved on the outer wall of the telescopic rod 12, a limiting plate 14 is slidably connected inside the connecting seat 6, a pressing block 15 is fixedly connected to one side of the limiting plate 14, a top block 17 is fixedly connected to the other side of the limiting plate 14, a reset assembly is arranged on the outer wall of the top block 17, and the reset assembly includes a third spring 16, the third spring 16 is sleeved on the outer wall of the top block 17, one end of the third spring 16 is fixedly connected to the other side of the limiting plate 14, and the other end of the third spring 16 is fixedly connected to the inside of the connecting seat 6, and both ends of the telescopic rod 12 and the second spring 13 are fixedly connected between the limiting plate 10;

[0033] Specifically, during the process of replacing the filter bag 20, the pressing blocks 15 on both sides of the connecting seat 6 are pressed. The pressing blocks 15 push the top blocks 17. After the pressing blocks 15 are pressed, the top blocks 17 will be pushed into the interior of the connecting seat 6. When the top blocks 17 enter the connecting seat 6, the top blocks 17 retract the card blocks 11 into the interior of the connecting block 5. The connection between the card blocks 11 and the connecting seat 6 is separated by the top blocks 17. The connecting block 5 can be pulled out of the connecting seat 6. The sealing cover 2 and the filter tank 1 can be smoothly disassembled. During installation, the card blocks 11 inside the connecting block 5 are limited inside the connecting block 5 by the limiting plate 10, and the card blocks 11 are supported by the tension generated by the second spring 13 inside the connecting block 5, so that the card blocks 11 are not easy to slide out when they are embedded in the interior of the connecting seat 6.

[0034] Reference Figure 1 , Figure 4 and Figure 5The filter tank 1 is fixedly connected with a partition 18, the filter tank 1 is slidably connected with a frame 19, the frame 19 is fixedly connected with a filter bag 20, the frame 19 is provided with a slot 22, the bottom of the frame 19 is fixedly connected with a sealing ring 21, the bottom of the sealing ring 21 is attached to the top of the partition 18, the filter tank 1 is slidably connected with a limit plate 3 23, one side of the limit plate 3 23 is fixedly connected with a hemispherical column 24, the outer wall of the hemispherical column 24 is embedded in the slot 22, the filter tank 1 is provided with a telescopic rod 25, the telescopic rod The outer wall of the second 25 is sleeved with a compression spring 26, one end of the telescopic rod 25 and the compression spring 26 are fixedly connected to the other side of the limit plate 3 23, and the other ends of the telescopic rod 25 and the compression spring 26 are fixedly connected to the inside of the filter tank 1, and the bottom of the sealing cover 2 is fixedly connected to a support ring 1 7, and the support ring 1 7 is slidably connected to the support ring 2 8, and the support ring 1 7 is provided with a first spring 9, one end of the first spring 9 is fixedly connected to the inside of the support ring 1 7, and the other end of the first spring 9 is fixedly connected to the top of the support ring 2 8;

[0035] Specifically, first, the operator needs to remove the filter bag 20 from the frame 19 for replacement. After replacing the new filter bag 20, the operator needs to insert the new filter bag 20 into the filter tank 1 through the frame 19. This step requires placing the filter bag 20 in the correct position to ensure that the hemispherical column 24 inside the filter tank 1 can be embedded in the slot 22 on the frame 19. This process requires precise operation to ensure that the hemispherical column 24 can be fully embedded in the slot 22. Next, the frame 19 needs to be limited by the partition 18. The limitation is to ensure that the position of the hemispherical column 24 inside the filter tank 1 is stable to prevent it from moving during operation. At the same time, the hemispherical column 24 also needs to be limited inside the filter tank 1 by the limiting plate three 23 to ensure its stability. After completing the above steps, the hemispherical column 24 is supported by the tension of the compression spring 26, so that it is not easy to slide out when embedded in the slot 22. This design enhances the service life and stability of the equipment. In addition, the frame 19 and the partition 18 are sealed by the sealing ring 21. The function of the sealing ring 21 is to prevent liquid or gas from leaking from the gap between the frame 19 and the partition 18, thereby ensuring the integrity of the system. After all these steps are completed, the operator needs to insert the sealing cover 2 into the connecting seat 6 through the connecting block 5. This process requires ensuring that the block 11 can be embedded in the connecting seat 6 for locking. This ensures a stable connection between the sealing cover 2 and the connecting seat 6 and prevents them from accidentally separating during operation. Finally, the support ring 2 8 slides in the support ring 1 7 and is supported by the tension of the first spring 9. This design allows the support ring 2 8 to have a certain pressure when it extends out of the support ring 1 7, thereby ensuring its stability when the sealing cover 2 is covered.

[0036] Working principle: When using the bag filter that is convenient for replacing filter bags, first, when replacing the filter bag 20, you only need to press the pressing blocks 15 on both sides of the connecting seat 6, and then push the top block 17 into the inside of the connecting seat 6 through the pressing blocks 15, so that the top block 17 retracts the card block 11 into the inside of the connecting block 5, thereby separating the card block 11 from the connecting seat 6, and then pull the connecting block 5 out of the connecting seat 6 to disassemble the sealing cover 2 and the filter tank 1, and then remove the filter bag 20 by pulling out the frame 19 for replacement, and then insert the new filter bag 20 into the filter tank 1 through the frame 19, so that the hemispherical column 24 inside the filter tank 1 is embedded in the card slot 22 on the frame 19, and the frame 19 is limited by the partition 18, the hemispherical column 24 is limited inside the filter tank 1 by the limiting plate three 23, and the hemispherical column 24 is supported by the tension of the compression spring 26, so that the hemispherical column 24 is not easy to slide out when it is embedded in the card slot 22. The frame 19 and the partition 18 are sealed by the sealing ring 21, and then the sealing cover 2 is inserted into the connecting seat 6 through the connecting block 5, so that the card block 11 is embedded in the connecting seat 6 to lock it, and the support ring 28 slides in the support ring 1 7 and is supported by the tension of the first spring 9, so that the support ring 28 is extended out of the support ring 1 7 with a certain pressure. When the sealing cover 2 is closed, the frame 19 is supported and fixed by the support ring 28.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bag filter for conveniently replacing filter bags, comprising a filter tank (1), characterized in that: The filter tank (1) is provided with a sealing cover (2) at the top, an air inlet (3) is provided inside the sealing cover (2), an air outlet (4) is provided inside the filter tank (1), an outer wall of the filter tank (1) is fixedly connected to a connecting seat (6), an outer wall of the sealing cover (2) is fixedly connected to a connecting block (5), an outer wall of the connecting block (5) is slidably connected inside the connecting seat (6), a symmetrically arranged limiting plate (10) is slidably connected inside the connecting block (5), and one side of the limiting plate (10) is fixedly connected to the connecting seat (6). A clamping block (11) is connected, the outer wall of the clamping block (11) is embedded in the connection seat (6), a telescopic rod (12) is arranged inside the connection block (5), the outer wall of the telescopic rod (12) is sleeved with a second spring (13), a limiting plate (14) is slidably connected inside the connection seat (6), a pressing block (15) is fixedly connected to one side of the limiting plate (14), a top block (17) is fixedly connected to the other side of the limiting plate (14), and a reset component is arranged on the outer wall of the top block (17).

2. A bag filter for convenient filter bag replacement according to claim 1, characterized in that: The reset assembly comprises a third spring (16), the third spring (16) is sleeved inside the outer wall of the top block (17), one end of the third spring (16) is fixedly connected to the other side of the second limiting plate (14), and the other end of the third spring (16) is fixedly connected to the inside of the connecting seat (6).

3. The bag filter for convenient filter bag replacement according to claim 1, characterized in that: Both ends of the telescopic rod 1 (12) and the second spring (13) are fixedly connected between the limiting plate 1 (10).

4. The bag filter for convenient filter bag replacement according to claim 1, characterized in that: A partition plate (18) is fixedly connected inside the filter tank (1), a frame (19) is slidably connected inside the filter tank (1), a filter bag (20) is fixedly connected inside the frame (19), and a card slot (22) is provided inside the frame (19).

5. A bag filter for conveniently replacing filter bags according to claim 4, characterized in that: A sealing ring (21) is fixedly connected to the bottom of the frame (19), and the bottom of the sealing ring (21) is attached to the top of the partition (18).

6. The bag filter for convenient filter bag replacement according to claim 1, characterized in that: The filter tank (1) is slidably connected to a third limiting plate (23) inside, and a hemispherical column (24) is fixedly connected to one side of the third limiting plate (23), and the outer wall of the hemispherical column (24) is embedded in the slot (22).

7. The bag filter for convenient filter bag replacement according to claim 1, characterized in that: A second telescopic rod (25) is arranged inside the filter tank (1), and a compression spring (26) is sleeved on the outer wall of the second telescopic rod (25). One end of the second telescopic rod (25) and the compression spring (26) are both fixedly connected to the other side of the third limit plate (23), and the other ends of the second telescopic rod (25) and the compression spring (26) are both fixedly connected to the inside of the filter tank (1).

8. The bag filter for convenient filter bag replacement according to claim 1, characterized in that: The bottom of the sealing cover (2) is fixedly connected to a support ring 1 (7), the interior of the support ring 1 (7) is slidably connected to a support ring 2 (8), a first spring (9) is arranged inside the support ring 1 (7), one end of the first spring (9) is fixedly connected to the interior of the support ring 1 (7), and the other end of the first spring (9) is fixedly connected to the top of the support ring 2 (8).

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