Anti-pressure-building off-line lifting device for bag-type dust collector

Abstract

The utility model relates to the technical field of bag-type dust removers, and discloses an anti-pressure-building off-line lifting device for a bag-type dust remover, which comprises a flue main body, a through hole is arranged at the bottom of the flue main body, a mounting base is fixedly connected in the flue main body, an electric-hydraulic push rod is fixedly connected at the bottom of the mounting base, and the electric-hydraulic push rod is fixedly connected at the bottom of the mounting base. And the lower end of the electric-hydraulic push rod is fixedly connected with a connecting plate. According to the flue sealing device, the electric-hydraulic push rod is shortened to pull the connecting plate to move upwards, at the moment, the connecting plate pulls the telescopic rod, the spring and the sealing plate upwards, the inserting frame and the first sealing gasket are installed on the side upper portion of the sealing plate to be connected with the sealing frame in an inserted mode, and therefore the through hole in the bottom of the flue body is sealed; and the first sealing gasket and the second sealing gasket are tightly attached, the sealing performance of the through hole is improved, the flue main body is sealed from the outer wall of the bottom of the flue main body, and the influence of dust deposited in the flue main body on the sealing performance can be avoided.

Description

Technical Field

[0001] The present utility model application relates to the technical field of bag filters, and specifically, it is an anti-backpressure offline lifting device for a bag filter. Background Technique

[0002] A bag filter is a device widely used in industrial waste gas treatment, used to collect and filter fine particles. The anti-backpressure offline lifting device plays an important role in the bag filter. Its main function is to prevent the negative pressure and backpressure phenomena that occur during the dust cleaning and maintenance of the dust collector, so as to protect the equipment and improve work efficiency.

[0003] However, in the prior art, the sealing plate of the offline lifting device is installed inside the flue. When the flue is opened and closed, the sealing surface of the sealing plate fits with the inner wall of the flue. Since dust is likely to accumulate at the bottom of the inner wall of the flue during use, it is difficult for the sealing surface of the sealing plate to closely fit the inner wall of the flue, resulting in a poor sealing performance of the flue. Summary of the Invention

[0004] In order to solve the problem that the sealing plate of the offline lifting device is installed inside the flue. When the flue is opened and closed, the sealing surface of the sealing plate fits with the inner wall of the flue. Since dust is likely to accumulate at the bottom of the inner wall of the flue during use, it is difficult for the sealing surface of the sealing plate to closely fit the inner wall of the flue, resulting in a poor sealing performance of the flue, the present utility model provides an anti-backpressure offline lifting device for a bag filter to solve the above problems.

[0005] To achieve the above object, the present utility model provides the following technical solutions:

[0006] An anti-backpressure offline lifting device for a bag filter, including a flue main body. A through hole is provided at the bottom of the flue main body. An installation base is fixedly connected inside the flue main body. An electro-hydraulic push rod is fixedly connected to the bottom of the installation base. The lower end of the electro-hydraulic push rod is fixedly connected to a connecting plate. A telescopic rod is fixedly connected to the bottom of the connecting plate. A sealing plate is fixedly connected to the bottom of the telescopic rod. A connecting frame is fixedly connected to the side of the sealing plate. A plugging frame is fixedly connected to the upper part of the connecting frame. A first sealing gasket is fixedly connected to the upper part of the plugging frame. A sealing frame is fixedly connected to the lower part of the flue main body. A second sealing gasket is fixedly connected inside the sealing frame. The plugging frame is plugged into the sealing frame.

[0007] Further, the second sealing gasket is embedded inside the sealing frame, and the top of the first sealing gasket fits with the bottom of the second sealing gasket.

[0008] Further, a plurality of telescopic rods are fixedly connected to the bottom of the connecting plate, and the plurality of telescopic rods are evenly distributed at the bottom of the connecting plate.

[0009] Further, a spring is arranged on the surface of the telescopic rod. One end of the spring is fixedly connected to the connecting plate, and the other end of the spring is fixedly connected to the sealing plate.

[0010] Further, a threaded sleeve is fixedly connected to the bottom of the mounting base, and a threaded adjusting rod is threadedly connected inside the threaded sleeve.

[0011] Further, the bottom of the threaded adjusting rod is fixedly connected to a connecting outer tube. A connecting inner tube is movably connected inside the connecting outer tube. The bottom end of the connecting inner tube penetrates the surface of the connecting plate, and the bottom end of the connecting inner tube is fixedly connected to the upper part of the sealing plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by shortening the electro-hydraulic push rod to pull the connecting plate upward, at this time, the connecting plate pulls the telescopic rod, the spring and the sealing plate upward. Through the insertion frame and the first sealing gasket installed above the side of the sealing plate being inserted into the sealing frame, the through hole at the bottom of the flue main body is sealed. Through the close fit of the first sealing gasket and the second sealing gasket, the sealing performance of the through hole is improved. By sealing the flue main body from the outer wall at the bottom of the flue main body, the influence of the dust deposited inside the flue main body on the sealing performance can be avoided.

[0014] 2. In the present utility model, after the insertion frame, the first sealing gasket and the sealing frame are inserted in place, the electro-hydraulic push rod continues to pull the connecting plate. At this time, the telescopic rod and the spring generate tensile deformation. Through the elastic force of the spring to pull the sealing plate, the extrusion force of the first sealing gasket on the second sealing gasket is provided, ensuring that the first sealing gasket can be inserted tightly into the second sealing gasket.

[0015] 3. In the present utility model, when the electro-hydraulic push rod drives the connecting plate to move up and down, at this time, the connecting inner tube slides along the connecting outer tube. By limiting the connecting inner tube by the connecting outer tube, the lifting of the connecting plate is limited, and the stability of the connecting plate during movement is improved.

[0016] 4. In the present utility model, by rotating the threaded adjusting rod, the length of the threaded adjusting rod extending inside the threaded sleeve is adjusted, so as to adjust the height of the connecting outer tube above the connecting inner tube. By adjusting the distance between the top of the connecting inner tube and the top of the connecting outer tube in contact, after the first sealing gasket and the second sealing gasket are in close fit, the top end of the connecting inner tube is in contact with the top plate of the connecting outer tube. Continuing to shorten the electro-hydraulic push rod will cause the spring to be further stretched. At this time, the connecting inner tube supports the sealing plate, avoiding excessive pressure between the first sealing gasket and the second sealing gasket. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an anti-overpressure off-line lifting device for a bag filter proposed by the present utility model;

[0019] Figure 2 This is an internal three-dimensional structural diagram of an anti-overpressure off-line lifting device for a bag filter proposed by the present utility model;

[0020] Figure 3 This is a front view structural schematic diagram of an anti-overpressure off-line lifting device for a bag filter proposed by the present utility model;

[0021] Figure 4 This is a sectional structural schematic diagram of a sealing frame in an anti-overpressure off-line lifting device for a bag filter proposed by the present utility model;

[0022] Figure 5 This is a sectional structural schematic diagram of a connecting plate in an anti-overpressure off-line lifting device for a bag filter proposed by the present utility model.

[0023] The meanings of the reference numerals in the drawings: 1, flue main body; 2, installation base; 3, electro-hydraulic push rod; 4, connecting plate; 5, telescopic rod; 6, spring; 7, sealing plate; 8, connecting frame; 9, inserting frame; 10, first sealing gasket; 11, sealing frame; 12, second sealing gasket; 13, threaded sleeve; 14, threaded adjusting rod; 15, connecting outer tube; 16, connecting inner tube. Detailed implementation manners

[0024] In order to make the application purpose, features, and advantages of the present application more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0025] Refer to Figures 1 - 4, An anti - pressure - holding off - line lifting device for a bag filter, including a flue main body 1. There is a through - hole at the bottom of the flue main body 1. An installation base 2 is fixedly connected inside the flue main body 1. An electro - hydraulic push rod 3 is fixedly connected to the bottom of the installation base 2. The lower end of the electro - hydraulic push rod 3 is fixedly connected to a connecting plate 4. A telescopic rod 5 is fixedly connected to the bottom of the connecting plate 4. A sealing plate 7 is fixedly connected to the bottom of the telescopic rod 5. A connecting frame 8 is fixedly connected to the side of the sealing plate 7. An inserting frame 9 is fixedly connected to the upper part of the connecting frame 8. A first sealing gasket 10 is fixedly connected to the upper part of the inserting frame 9. A sealing frame 11 is fixedly connected to the lower part of the flue main body 1. A second sealing gasket 12 is fixedly connected inside the sealing frame 11. The inserting frame 9 is inserted into the sealing frame 11. The second sealing gasket 12 is embedded inside the sealing frame 11. The top of the first sealing gasket 10 is in contact with the bottom of the second sealing gasket 12. A plurality of telescopic rods 5 are fixedly connected to the bottom of the connecting plate 4. The plurality of telescopic rods 5 are evenly distributed at the bottom of the connecting plate 4. A spring 6 is arranged on the surface of the telescopic rod 5. One end of the spring 6 is fixedly connected to the connecting plate 4, and the other end of the spring 6 is fixedly connected to the sealing plate 7.

[0026] Specifically, when closing the through - hole at the bottom of the flue main body 1, by shortening the electro - hydraulic push rod 3, the connecting plate 4 is pulled upward. At this time, the connecting plate 4 pulls the telescopic rod 5, the spring 6 and the sealing plate 7 upward. Through the insertion of the inserting frame 9 and the first sealing gasket 10 installed above the side of the sealing plate 7 into the sealing frame 11, the through - hole at the bottom of the flue main body 1 is sealed. By the close fit of the first sealing gasket 10 and the second sealing gasket 12, the sealing performance of the through - hole is improved. By sealing the flue main body 1 from the outer wall at the bottom of the flue main body 1, the influence of the dust deposited inside the flue main body 1 on the sealing performance can be avoided;

[0027] After the inserting frame 9, the first sealing gasket 10 and the sealing frame 11 are inserted in place, the electro - hydraulic push rod 3 continues to pull the connecting plate 4. At this time, the telescopic rod 5 and the spring 6 produce tensile deformation. By the elastic force of the spring 6, the sealing plate 7 is pulled, so as to provide the extrusion force of the first sealing gasket 10 on the second sealing gasket 12, ensuring that the first sealing gasket 10 can be closely inserted into the second sealing gasket 12.

[0028] As an optimized scheme, as Figure 4 and Figure 5 shown, a threaded sleeve 13 is fixedly connected to the bottom of the installation base 2. A threaded adjusting rod 14 is threadedly connected inside the threaded sleeve 13. A connecting outer tube 15 is fixedly connected to the bottom of the threaded adjusting rod 14. A connecting inner tube 16 is movably connected inside the connecting outer tube 15. The bottom end of the connecting inner tube 16 penetrates the surface of the connecting plate 4, and the bottom end of the connecting inner tube 16 is fixedly connected to the upper part of the sealing plate 7.

[0029] Specifically, when the electro-hydraulic push rod 3 drives the connecting plate 4 to move up and down, at this time, the connecting inner tube 16 slides along the connecting outer tube 15, and the connecting outer tube 15 limits the connecting inner tube 16, thereby limiting the up and down movement of the connecting plate 4 and improving the stability of the connecting plate 4 during movement;

[0030] By rotating the threaded adjusting rod 14, the length of the threaded adjusting rod 14 extending inside the threaded sleeve 13 is adjusted, so as to adjust the height of the connecting outer tube 15 above the connecting inner tube 16. By adjusting the distance between the top of the connecting inner tube 16 and the top of the connecting outer tube 15, after the first sealing gasket 10 and the second sealing gasket 12 are closely attached, the top of the connecting inner tube 16 fits with the top plate of the connecting outer tube 15. If the electro-hydraulic push rod 3 continues to shorten, the spring 6 will continue to be stretched. At this time, the connecting inner tube 16 supports the sealing plate 7 to prevent the pressure between the first sealing gasket 10 and the second sealing gasket 12 from being too large.

[0031] Working principle: When closing the through hole at the bottom of the flue main body 1, the electro-hydraulic push rod 3 is shortened to pull the connecting plate 4 upward. At this time, the connecting plate 4 pulls the telescopic rod 5, the spring 6 and the sealing plate 7 upward. The plug-in frame 9 installed above the side of the sealing plate 7 is inserted into the first sealing gasket 10 and the sealing frame 11, thereby sealing the through hole at the bottom of the flue main body 1, and the first sealing gasket 10 and the second sealing gasket 12 are closely attached;

[0032] After the plug-in frame 9, the first sealing gasket 10 and the sealing frame 11 are inserted in place, the electro-hydraulic push rod 3 continues to pull the connecting plate 4. At this time, the telescopic rod 5 and the spring 6 produce tensile deformation, and the spring 6 pulls the sealing plate 7 by its elastic force;

[0033] When the electro-hydraulic push rod 3 drives the connecting plate 4 to move up and down, at this time, the connecting inner tube 16 slides along the connecting outer tube 15, and the connecting outer tube 15 limits the connecting inner tube 16, thereby limiting the up and down movement of the connecting plate 4;

[0034] By rotating the threaded adjusting rod 14, the length of the threaded adjusting rod 14 extending inside the threaded sleeve 13 is adjusted, so as to adjust the height of the connecting outer tube 15 above the connecting inner tube 16.

[0035] For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the same elements of the claims are intended to be included in this application. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. An anti-backpressure offline lifting device for a bag filter, comprising a flue main body (1), wherein a through hole is arranged at the bottom of the flue main body (1), and it is characterized in that: An installation base (2) is fixedly connected inside the flue main body (1). An electro-hydraulic push rod (3) is fixedly connected to the bottom of the installation base (2). A connecting plate (4) is fixedly connected to the lower end of the electro-hydraulic push rod (3). A telescopic rod (5) is fixedly connected to the bottom of the connecting plate (4). A sealing plate (7) is fixedly connected to the bottom of the telescopic rod (5). A connecting frame (8) is fixedly connected to the side of the sealing plate (7). A plugging frame (9) is fixedly connected to the upper part of the connecting frame (8). A first sealing gasket (10) is fixedly connected to the upper part of the plugging frame (9). A sealing frame (11) is fixedly connected to the lower part of the flue main body (1). A second sealing gasket (12) is fixedly connected inside the sealing frame (11). The plugging frame (9) is plugged into the sealing frame (11).

2. The anti-backpressure off-line lifting device for a bag filter according to claim 1, characterized in that: The second sealing gasket (12) is embedded inside the sealing frame (11), and the top of the first sealing gasket (10) is in contact with the bottom of the second sealing gasket (12).

3. The anti-overpressure offline lifting device for the bag filter according to claim 1, characterized in that: A plurality of telescopic rods (5) are fixedly connected to the bottom of the connecting plate (4), and the plurality of telescopic rods (5) are evenly distributed at the bottom of the connecting plate (4).

4. The anti-backpressure offline lifting device for a bag filter according to claim 1, characterized in that: A spring (6) is arranged on the surface of the telescopic rod (5). One end of the spring (6) is fixedly connected to the connecting plate (4), and the other end of the spring (6) is fixedly connected to the sealing plate (7).

5. The anti-backpressure offline lifting device for a bag filter according to claim 1, characterized in that: A threaded sleeve (13) is fixedly connected to the bottom of the installation base (2), and a threaded adjusting rod (14) is threadedly connected inside the threaded sleeve (13).

6. The anti-overpressure off-line lifting device for a bag filter according to claim 5, characterized in that: A connecting outer tube (15) is fixedly connected to the bottom of the threaded adjusting rod (14). A connecting inner tube (16) is movably connected inside the connecting outer tube (15). The bottom end of the connecting inner tube (16) penetrates through the surface of the connecting plate (4), and the bottom end of the connecting inner tube (16) is fixedly connected to the upper part of the sealing plate (7).

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