Sealing and protection device for high temperature dust collector filter element

Abstract

The utility model discloses a sealing and protective device for a high-temperature dust collector filter element, comprising a support plate, a through hole is provided on the support plate, a filter element is arranged in the through hole, a filter element pressing plate is provided on the upper part of the filter element, a venturi tube is connected to the filter element pressing plate, a filter element protective sleeve is provided between the filter element pressing plate and the filter element, and the filter element pressing plate is connected to the support plate. Compared with the prior art, the utility model discloses a venturi tube on the filter element pressing plate, a filter element protective sleeve is provided in the filter element, and the venturi tube and the filter element protective sleeve are used to centrally purge the gas during the spraying process, the venturi tube is responsible for concentrating the gas, and the filter element protective sleeve is responsible for vertically sending the gas into the filter element for purge, effectively preventing the gas purge position from shifting, causing uneven vibration damage to the filter element or affecting its service life, and the filter element pressing plates are easy to disassemble, which is convenient for disassembling and inspecting each filter element, saving manpower and labor intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of solid organic matter, natural gas, high-temperature flue gas and fly ash incineration treatment, in particular to a sealing and protection device for a high-temperature dust collector filter element. Background Art

[0002] High-temperature dust collector is a key equipment for incineration flue gas treatment to meet standards. It separates solid particles such as white carbon black from high-temperature flue gas through filter elements, thereby achieving gas-solid separation and ensuring that particulate matter emissions from the system meet standards.

[0003] The filter element is an important component of the high-temperature dust collector. The sealing device of the filter element can directly affect the efficiency of fly ash dust removal. The filter element used in this system is a high-temperature cotton filter element. The filter element may be broken due to the influence of moisture. The filter element may also be broken due to the impact and thinning of the pipe wall caused by external force. Therefore, a material with better shock absorption is needed for buffering and shock absorption.

[0004] Patent CN216320717U discloses a sealing device, which adopts a primary sealing device that is a bevel bite-and-tighten method. The elastic gasket on the filter element is pressed by a pressure seat for secondary sealing, and the pressure seat is fixed by a spring and a pressure cover for elastic compression. This structure is easily corroded and deformed in a high temperature and corrosive environment, causing the spring to lose its elasticity. This device is not easy to disassemble, and when the filter element is sprayed with vibration, the bevel bite is inelastic and easily causes the contact surface between the head and the body of the filter element to be damaged due to the lack of elastic margin.

[0005] Therefore, a sealing device that is easy to disassemble and can protect the filter element is needed to ensure that the filter element is not easily damaged and extend the service life of the filter element. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a sealing and protection device for a high-temperature dust collector filter element. During the blowing process, a venturi tube and a filter element protective cover are used to centrally blow the gas. The venturi tube is responsible for concentrating the gas, and the filter element protective cover is responsible for vertically sending the gas into the filter element for blowing, effectively preventing the gas blowing position from being offset, causing uneven vibration damage to the filter element or affecting its service life. The filter element pressure plates are easy to disassemble, which is convenient for disassembly and inspection of each filter element, saving manpower and labor intensity.

[0007] To achieve this technical purpose, the utility model adopts the following scheme:

[0008] A sealing and protection device for a high-temperature dust collector filter element, comprising a support plate, a through hole being opened on the support plate, a filter element being arranged in the through hole, a filter element pressing plate being arranged on the upper part of the filter element, a venturi tube being connected to the filter element pressing plate, a filter element protection sleeve being arranged between the filter element pressing plate and the filter element, and the filter element pressing plate being connected to the support plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model provides a venturi tube on the filter element pressing plate, and a filter element protective cover is arranged in the filter element. During the spraying process, the venturi tube and the filter element protective cover are used to centrally blow the gas. The venturi tube is responsible for concentrating the gas, and the filter element protective cover is responsible for vertically sending the gas into the filter element for blowing, thereby effectively preventing the gas blowing position from being offset, causing uneven vibration damage to the filter element or affecting its service life. The filter element pressing plates are easy to disassemble, which is convenient for disassembly and inspection of each filter element, saving manpower and labor intensity.

[0011] Furthermore, a high temperature resistant cotton pad is arranged between the filter element and the support plate. The high temperature resistant cotton pad has a certain deformation margin, which can reduce the probability of breakage caused by asynchronous vibration of the filter element head and body.

[0012] Furthermore, the filter element protective cover includes an upper circular ring and a lower short tube which are fixed by welding. The outer diameter of the short tube is smaller than the inner diameter of the filter element. The short tube extends into the filter element. The length of the short tube is 100-200 mm. The circular ring is located between the filter element and the filter element pressure plate.

[0013] Furthermore, a fixed channel steel is arranged on the support plate, the top of the fixed channel steel is opened, the fixed channel steel is connected to the filter element pressure plate by bolts, the head of the bolt is located in the fixed channel steel and is slidingly connected to the fixed channel steel, and a bow-shaped gasket is arranged between the filter element pressure plate and the nut of the bolt.

[0014] Furthermore, the fixed channel steel is arranged at the center of the four through holes, and both ends of the fixed channel steel point to the two through holes diagonally opposite to each other and are arranged at 45 degrees.

[0015] Furthermore, the filter element pressure plate is in the shape of a fan blade, with a circular center and a stepped end of the blade to ensure that the bolts can pass through and be tightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a sealing and protection device for a high-temperature dust collector filter element according to an embodiment of the utility model;

[0017] Figure 2 This is a partial top view of the support plate of an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the position relationship of two protection devices in an embodiment of the utility model;

[0019] Figure 4 This is a top view of the positional relationship between the filter element pressure plate and the arched gasket in the embodiment of the utility model;

[0020] The markings in the figure are: 1. Support plate; 2. High temperature resistant cotton pad; 3. Filter element; 4. Filter element protection cover; 5. Filter element pressure plate; 6. Venturi tube; 7. Bow-shaped gasket; 8. Fixed channel steel; 9. Through hole; 10. Bolt. DETAILED DESCRIPTION

[0021] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0022] See also Figures 1 to 4 The utility model provides a sealing and protection device for a high-temperature dust collector filter element, including a support plate 1, a through hole 9 is opened on the support plate 1, a filter element 3 is arranged in each through hole 9, the filter element 3 is made of high-temperature resistant cotton, and a high-temperature resistant cotton pad 2 is arranged between the head of the filter element 3 and the support plate 1 for sealing and shock absorption. The high-temperature resistant cotton pad 2 has a certain deformation margin, which can reduce the probability of breakage caused by the asynchronous vibration of the head and trunk of the filter element 3. A filter element protective sleeve 4 is arranged inside the filter element 3. The upper part of the filter element protective sleeve 4 is a circular ring, which is located at the top of the filter element 3. The size of the circular ring is the same as the head of the filter element 3 to ensure that the filter element protective sleeve 4 will not be easily displaced. A short tube is welded below the circular ring, which extends into the interior of the filter element 3. The length of the short tube is 100-200 mm. The outer diameter of the short tube is smaller than the inner diameter of the filter element 3 to prevent the filter element 3 and the filter element protective sleeve 4 from vibrating and causing friction and damaging the filter element 3 due to no margin. The upper part of the filter element protective sleeve 4 is a filter element pressing plate 5. The filter element pressing plate 5 is in the shape of a fan blade, with a circular middle part, a central opening, and a stepped end of the fan blade. A venturi tube 6 is connected to the opening of the filter element pressing plate 5. The upper end of the venturi tube 6 is a wide-mouth end and the lower end is a narrow-mouth end. A fixed channel steel 8 is provided on the support plate 1, and the upper part of the fixed channel steel 8 is opened. The fixed channel steel 8 is set in the center of the four through holes 9. The two ends of the fixed channel steel 8 point to the two through holes 9 diagonally opposite to each other and are arranged at 45 degrees. The fixed channel steel 8 is connected to the filter element pressing plate 5 by bolts 10. The heads of the bolts 10 are located in the fixed channel steel 8 and are slidably connected to the fixed channel steel 8. The screw rod vertically passes through the two filter element pressing plates 5. The filter element pressing plate 5 is provided with a bow-shaped gasket 7. The two ends of the bow-shaped gasket 7 are bent downward to fix and press the two filter element pressing plates 5. Two nuts are used to tighten the bow-shaped gasket 7 so that the filter element pressing plate 5 presses the filter element protective cover 4 and the following components.

[0023] The venturi tube 6 and the filter element protection sleeve 4 are both made of stainless steel. The inner diameter of the narrow end of the venturi tube 6, the central aperture of the filter element pressing plate 5, the annular aperture of the filter element protection sleeve 4 and the inner diameter of the short tube of the filter element protection sleeve 4 are the same.

[0024] The working process of the utility model is as follows: the venturi tube 6 collects the sprayed gas, and blows the sprayed gas vertically into the filter element 3 through the filter element protection sleeve 4, effectively preventing the uneven spraying of the sprayed gas from causing polarization and damage to the filter element 3. The filter element 3 and the support plate 1 are sealed and shock-absorbing with a high-temperature resistant cotton pad 2 to ensure that the sprayed gas flows vertically downward when it is blown into the filter element 3. The high-temperature resistant cotton pad 2 ensures that there is enough vibration margin when the filter element 3 vibrates. During maintenance, loosen the fastening nut, loosen the bow-shaped gasket 7 to a certain position, remove the entire filter element pressing plate 5, and inspect the filter element 3.

[0025] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A sealing and protection device for a high-temperature dust collector filter element, comprising a support plate (1), a through hole (9) being formed on the support plate (1), a filter element (3) being arranged in the through hole (9), and characterized in that: A filter element pressing plate (5) is arranged on the upper part of the filter element (3), a venturi tube (6) is connected to the filter element pressing plate (5), a filter element protection sleeve (4) is arranged between the filter element pressing plate (5) and the filter element (3), and the filter element pressing plate (5) is connected to the support plate (1).

2. The sealing and protection device for a high-temperature dust collector filter element according to claim 1, characterized in that: A high temperature resistant cotton pad (2) is provided between the filter element (3) and the support plate (1).

3. The sealing and protection device for a high-temperature dust collector filter element according to claim 1, characterized in that: The filter element protection sleeve (4) comprises an upper circular ring and a lower short tube which are fixed by welding. The outer diameter of the short tube is smaller than the inner diameter of the filter element (3). The short tube extends into the filter element (3). The circular ring is located between the filter element (3) and the filter element pressing plate (5).

4. The sealing and protection device for a high-temperature dust collector filter element according to claim 1, characterized in that: A fixed channel steel (8) is provided on the support plate (1), and the fixed channel steel (8) is connected to the filter element pressing plate (5) via bolts (10), the heads of the bolts (10) are located in the fixed channel steel (8), and a bow-shaped gasket (7) is provided between the filter element pressing plate (5) and the nuts of the bolts (10).

5. The sealing and protecting device for a high temperature dust collector filter element according to claim 4, characterized in that: The fixed channel steel (8) is arranged at the center of the four through holes (9).

6. The sealing and protection device for a high-temperature dust collector filter element according to claim 1, characterized in that: The filter element pressing plate (5) is in the shape of a fan blade, with a circular center and a stepped end.

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