Ceramic filter tube protection device

Abstract

The utility model belongs to the technical field of environmental protection, and discloses a ceramic filter tube protection device which comprises a ceramic filter tube, and the ceramic filter tube is provided with a connecting flange integrally formed with the ceramic filter tube; the bearing plate is provided with a mounting hole, the ceramic filter tube penetrates through the mounting hole, and the connecting flange is clamped with the bearing plate; the protection piece comprises a first connecting part, and the first connecting part is arranged between the inner wall of the mounting hole and the peripheral wall of the ceramic filter tube and used for protecting the ceramic filter tube to reduce damage; the limiting assembly is arranged on the bearing plate, and the limiting assembly is matched with the bearing plate to limit the ceramic filter tube. According to the invention, damage to the ceramic filter tube caused by mounting operation can be relieved; and during flue gas purification operation of the ceramic filter tube, cutting damage of the bearing plate to the surface of the ceramic filter tube is reduced, so that the tube breakage rate is reduced, and the purification effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of environmental protection, and more specifically, to a ceramic filter tube protection device. Background Art

[0002] One of the technologies used in air pollution control is integrated denitrification and dust removal using catalytic fiber tubes (also known as ceramic filter tubes). This integrated flue gas purification process has been included in the 2018 National Catalogue of Advanced Pollution Control Technologies (Air Pollution Control Field) as a demonstrative technology for glass furnace flue gas purification. Ceramic filter tubes are a common gas purification structure in most purification equipment.

[0003] Ceramic filter tubes, which are being heavily promoted and applied in large-scale industrial projects, are 150mm x 3000mm (length). The main material is aluminum silicate fiber, which has a high porosity, making each ceramic filter tube relatively light. When a ceramic filter tube reaches 3 to 4 meters in length, its structural strength weakens. In the prior art, ceramic filter tubes are typically mounted vertically on a support plate, which separates the reactor chamber from the external environment. Flue gas enters the reactor chamber through the flue on the left side of the reactor, where it intercepts dust through the micropores of the ceramic filter tube. The purified flue gas then enters the ceramic filter tube barrel and is discharged straight upward. Ceramic filter tubes need to be hoisted during installation and replacement after use. The stability of the ceramic filter tubes needs to be ensured during the hoisting work. If there is a tilt, it is easy for the supporting plate to hit the ceramic filter tubes and cause damage to the ceramic filter tubes. Secondly, during the purification process, the flue gas entering the reactor chamber may undergo complex changes such as diameter change, turning, and speed change, and there may be more complex airflow forms such as turbulence and swirl in some areas. Therefore, the ceramic filter tubes will be disturbed and swing due to the flow of flue gas, and then the supporting plate will cut the swinging ceramic filter tubes, thereby damaging the fiber cotton of the ceramic filter tubes. Prolonged cutting will cause the ceramic filter tubes to break, affecting the purification effect. Utility Model Content

[0004] An embodiment of the present application provides a ceramic filter tube protection device, which can alleviate the damage to the ceramic filter tube caused by the installation operation when the ceramic filter tube is installed; and reduce the cutting damage to the surface of the ceramic filter tube caused by the supporting plate when the ceramic filter tube is in flue gas purification operation, thereby reducing the tube breakage rate and improving the purification effect.

[0005] The ceramic filter tube protection device provided in this application adopts the following technical solution:

[0006] A ceramic filter tube protection device, comprising:

[0007] A ceramic filter tube, wherein the ceramic filter tube is provided with a connecting flange integrally formed therewith;

[0008] The bearing plate is provided with a mounting hole, the ceramic filter tube passes through the mounting hole, and the connecting flange is clamped with the bearing plate;

[0009] A protective member including a first connecting portion, the first connecting portion being disposed between an inner wall of the mounting hole and a peripheral wall of the ceramic filter tube, and being used to protect the ceramic filter tube to reduce damage;

[0010] A limiting component is provided on the supporting plate, and the limiting component cooperates with the supporting plate to limit the ceramic filter tube.

[0011] Optionally, the protective member also includes a second connecting portion, which is arranged between the connecting flange and the supporting plate. The second connecting portion is provided with an avoidance hole for avoiding the ceramic filter tube, and the ceramic filter tube is passed through the avoidance hole so that the connecting flange presses against the second connecting portion.

[0012] Optionally, the cross-section of the first connecting portion is circular, and the first connecting portion and the second connecting portion cover the inner wall of the mounting hole and the edge of the mounting hole on a side close to the connecting flange.

[0013] Optionally, the first connecting portion and the second connecting portion are integrally formed, and an inner wall of the first connecting portion is coplanar with an inner wall of the avoidance hole.

[0014] Optionally, the distance between the edge of the second connecting portion and the central axis of the ceramic filter tube is greater than or equal to the distance between the edge of the connecting flange and the central axis of the ceramic filter tube.

[0015] Optionally, an end of the first connecting portion away from the connecting flange is located outside the edge of the inner wall of the mounting hole.

[0016] Optionally, the protective member is made of a compressible and high-temperature resistant material.

[0017] Optionally, the limiting assembly includes a pressure plate and a fastener, the pressure plate is arranged on a side of the connecting flange away from the supporting plate, and the fastener locks the pressure plate to the supporting plate so that the pressure plate presses against the connecting flange.

[0018] Optionally, the limiting assembly further includes a distance tube arranged on the supporting plate, and two distance tubes are provided and the two distance tubes are respectively located on both sides of the ceramic filter tube.

[0019] Optionally, the fastener is a bolt and nut structure.

[0020] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0021] When the ceramic filter tube is hoisted, the mounting hole is first drilled to allow the connecting flange to be clamped with the supporting plate, and then the ceramic filter tube is limited by the limiting assembly in conjunction with the supporting plate; in the process of drilling the mounting hole, the first connecting part physically blocks the hard contact between the ceramic filter tube and the mounting hole, ensuring the safety of the ceramic filter tube during installation and reducing the probability of damage to the ceramic filter tube during installation; at the same time, the first connecting part serves to isolate the circulation of air inside and outside the supporting plate, thereby achieving the effect of sealing the reactor chamber to prevent flue gas leakage; in the flue gas purification process, the first connecting part limits the circumference of the ceramic filter tube, and the limiting assembly limits the axial direction of the ceramic filter tube. Under the joint action of the first connecting part and the limiting assembly, the influence of the flue gas flow on the disturbance of the ceramic filter tube is reduced, thereby reducing the swing amplitude of the ceramic filter tube and the cutting damage to the surface of the ceramic filter tube by the supporting plate, thereby reducing the breakage rate of the ceramic filter tube and improving the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the installation structure of a ceramic filter tube protection device disclosed in an embodiment of the present application;

[0024] Figure 2 This is a cross-sectional view of the structure of a ceramic filter tube protection device disclosed in an embodiment of the present application;

[0025] Figure 3 This is a structural schematic diagram of a ceramic filter tube protection device highlighting the protective component disclosed in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1. Ceramic filter tube; 11. Connecting flange; 2. Load-bearing plate; 21. Mounting hole; 3. Protective part; 31. First connecting part; 32. Second connecting part; 321. Avoidance hole; 4. Limiting assembly; 41. Pressing plate; 42. Fastener; 43. Distance tube. DETAILED DESCRIPTION

[0028] The present application is further described in detail below with reference to the accompanying drawings.

[0029] An embodiment of the present application provides a ceramic filter tube protection device, which can alleviate the damage to the ceramic filter tube caused by the installation operation when the ceramic filter tube is installed; and reduce the cutting damage to the surface of the ceramic filter tube caused by the supporting plate when the ceramic filter tube is in flue gas purification operation, thereby reducing the tube breakage rate and improving the purification effect.

[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] The terms "first," "second," "third," "fourth," and the like in the specification and claims of the present invention and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] See also Figure 1 and Figure 2 , is an embodiment of the ceramic filter tube 1 protection device in the embodiment of the present application, including a ceramic filter tube 1, a supporting plate 2, a protective part 3 and a limiting component 4. The ceramic filter tube 1 is used to intercept dust and purify flue gas. The supporting plate 2 is used as an installation base for installing the ceramic filter tube 1, the protective part 3 and the limiting component 4. The protective part 3 is used to block the hard contact between the ceramic filter tube 1 and the supporting plate 2 to reduce damage to the ceramic filter tube 1. The limiting component 4 is arranged on the supporting plate 2, and the limiting component 4 cooperates with the supporting plate 2 to limit the ceramic filter tube 1.

[0033] See also Figure 2The carrier plate 2 is provided with a mounting hole 21 for the ceramic filter tube 1 to pass through. The mounting hole 21 is circular. The ceramic filter tube 1 is provided with a connecting flange 11 integrally formed therewith. The diameter of the connecting flange 11 is larger than the diameter of the mounting hole 21. The ceramic filter tube 1 is provided with the mounting hole 21 so that the connecting flange 11 is clamped with the carrier plate 2. When the ceramic filter tube 1 is hoisted, the connecting flange 11 is clamped with the carrier plate 2 by penetrating the mounting hole 21, and then the ceramic filter tube 1 is limited by the limiting component 4 in cooperation with the carrier plate 2, so that the ceramic filter tube 1 is installed on the carrier plate 2. When the ceramic filter tube 1 needs to be replaced, the ceramic filter tube 1 can be removed from the carrier plate 2 by releasing the restriction of the limiting component 4 on the ceramic filter tube 1.

[0034] See also Figure 2 and Figure 3 The protective member 3 includes a first connecting portion 31 and a second connecting portion 32. The first connecting portion 31 is arranged between the inner wall of the mounting hole 21 and the peripheral wall of the ceramic filter tube 1 to protect the ceramic filter tube 1 to reduce damage; the second connecting portion 32 is arranged between the connecting flange 11 and the supporting plate 2. The second connecting portion 32 is provided with an avoidance hole 321 for avoiding the ceramic filter tube 1. The ceramic filter tube 1 is provided with the avoidance hole 321 to enable the connecting flange 11 to press against the second connecting portion 32.

[0035] During the process of hoisting the ceramic filter tube 1 and passing it through the mounting hole 21, the first connecting portion 31 physically blocks the hard contact between the ceramic filter tube 1 and the mounting hole 21, thereby ensuring the safety of the ceramic filter tube 1 during installation and reducing the probability of damage to the ceramic filter tube 1 during installation. At the same time, the first connecting portion 31 blocks the gap between the ceramic filter tube 1 and the mounting hole 21, isolating the air flow inside and outside the supporting plate 2 from flowing, thereby achieving the effect of sealing the reactor chamber and preventing flue gas leakage. During the flue gas purification process, the first connecting portion 31 limits the circumference of the ceramic filter tube 1, and the limiting component 4 limits the axial direction of the ceramic filter tube 1. Under the joint action of the first connecting portion 31 and the limiting component 4, the influence of the flue gas flow change on the disturbance of the ceramic filter tube 1 is reduced, thereby reducing the swing amplitude of the ceramic filter tube 1 and the cutting damage to the surface of the ceramic filter tube 1 by the supporting plate 2, thereby reducing the breakage rate of the ceramic filter tube 1 and improving the purification effect.

[0036] The second connection part 32 is located between the connecting flange 11 and the supporting plate 2, that is, the second connection part 32 is located at the second connection part 32 on the upper end surface of the supporting plate 2. During the hoisting process of the ceramic filter tube 1, if the ceramic filter tube 1 is not aligned with the mounting hole 21, the bottom of the ceramic filter tube 1 is protected to block the hard contact between the ceramic filter tube 1 and the supporting plate 2; on the other hand, the second connection part 32 is located between the connecting flange 11 and the supporting plate 2, so that when the limiting component 4 limits the supporting plate 2, the second connection part 32 plays a role in protecting the connecting flange 11; at the same time, under the action of the limiting component 4, the second connection part 32 blocks the gap between the connecting flange 11 and the upper end surface of the supporting plate 2, further isolating the circulation of air inside and outside the supporting plate 2, thereby achieving the effect of sealing the reactor chamber.

[0037] Furthermore, one end of the first connection portion 31 away from the connecting flange 11 is located outside the inner wall edge of the mounting hole 21. It is understandable that the length of the first connection portion 31 is greater than the inner wall length of the mounting hole 21, that is, the length of the first connection portion 31 is greater than the thickness of the supporting plate 2, thereby increasing the contact area between the first connection portion 31 and the ceramic filter tube 1. During the flue gas purification process, the swing of the ceramic filter tube 1 caused by the interference of the flue gas flow can further ensure the hard contact between the ceramic filter tube 1 and the supporting plate 2 under the action of the first connection portion 31, thereby avoiding the 90-degree right angle formed by the inner wall of the mounting hole 21 and the lower bottom surface of the supporting plate 2 from cutting the swinging ceramic filter tube 1, thereby reducing damage to the fiber cotton of the ceramic filter tube 1.

[0038] In this embodiment, the first connecting portion 31 is cylindrical, and the cross-section of the first connecting portion 31 is circular, which is intended to adapt to the shape of the outer wall of the ceramic filter tube 1 so that the first connecting portion 31 fits the ceramic filter tube 1. The second connecting portion 32 is annular, and the outer peripheral walls of the second connecting portion 32 enclose a circle. The distance between the edge of the second connecting portion 32 and the central axis of the ceramic filter tube 1 is greater than or equal to the distance between the edge of the connecting flange 11 and the central axis of the ceramic filter tube 1. In other embodiments, the second connecting portion 32 is annular, and the outer peripheral walls of the second connecting portion 32 enclose a square or polygonal shape. The distance between the edge of the second connecting portion 32 and the central axis of the ceramic filter tube 1 is less than the distance between the edge of the connecting flange 11 and the central axis of the ceramic filter tube 1.

[0039] The first connection part 31 and the second connection part 32 cover the inner wall of the mounting hole 21 and the edge of the mounting hole 21 on the side close to the connecting flange 11. It can be understood that the first connection part 31 covers the inner wall of the mounting hole 21, and the first connection part 31 and the second connection part 32 work together to cover the 90-degree right angle formed between the inner wall of the mounting hole 21 and the upper end face of the supporting plate 2, thereby avoiding cutting the swinging ceramic filter tube 1 and reducing damage to the fiber cotton of the ceramic filter tube 1. The first connection part 31 and the second connection part 32 are integrally formed, and the inner wall of the first connection part 31 is coplanar with the inner wall of the avoidance hole 321, which helps to disperse the internal stress of the protective part 3, enhance the durability and strength of the protective part 3, and on the other hand, reduces the installation steps of the protective part 3, saving time and cost.

[0040] In this embodiment, the protective member 3 is made of a compressible and high-temperature resistant material. Due to its elasticity, the protective member 3 can significantly mitigate the swing amplitude of the ceramic filter tube 1 caused by the interference of flue gas flow. The protective member 3 can be made of a material selected from aluminum silicate fiber wool, rock wool, glass wool, or an aerosol-like material.

[0041] See also Figure 2 The limiting assembly 4 includes a pressure plate 41 and a fastener 42. The pressure plate 41 is horizontally arranged on the side of the connecting flange 11 away from the supporting plate 2. The fastener 42 is vertically arranged to lock the pressure plate 41 to the supporting plate 2, so that the pressure plate 41 is pressed against the connecting flange 11 to limit the ceramic filter tube 1. The pressure plate 41 and the fastener 42 limit the axial direction of the ceramic filter tube 1, preventing the ceramic filter tube 1 from moving along the axial direction of the ceramic filter tube 1 under the flow of flue gas, thereby enhancing the installation stability of the ceramic filter tube 1, reducing the swing of the ceramic filter tube 1, and further reducing the cutting damage to the surface of the ceramic filter tube 1 caused by the supporting plate 2, thereby reducing the breakage rate of the ceramic filter tube 1 and improving the purification effect.

[0042] In this embodiment, the fastener 42 is a bolt-nut structure, that is, the nut is threadedly connected to the bolt, the nut is located on the upper end face of the pressure plate 41, one end of the bolt is welded to the supporting plate 2, and the other end is passed through the pressure plate 41 and threadedly connected to the nut. The nut is adjusted so that the nut contacts and presses against the pressure plate 41, thereby realizing that the pressure plate 41 presses against the connecting flange 11 to limit the ceramic filter tube 1.

[0043] Furthermore, the limiting assembly 4 also includes a distance tube 43 provided on the supporting plate 2. Two distance tubes 43 are provided, and the two distance tubes 43 are respectively located on both sides of the ceramic filter tube 1. The distance tubes 43 are used to ensure that the pressure applied by the pressure plate 41 on both sides of the connecting flange 11 is equal, thereby reducing damage to the ceramic filter tube 1 caused by uneven force.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ceramic filter tube protection device, characterized in that: include: A ceramic filter tube, wherein the ceramic filter tube is provided with a connecting flange integrally formed therewith; The bearing plate is provided with a mounting hole, the ceramic filter tube passes through the mounting hole, and the connecting flange is clamped with the bearing plate; A protective member including a first connecting portion, the first connecting portion being disposed between an inner wall of the mounting hole and a peripheral wall of the ceramic filter tube, and being used to protect the ceramic filter tube to reduce damage; A limiting component is provided on the supporting plate, and the limiting component cooperates with the supporting plate to limit the ceramic filter tube.

2. A ceramic filter tube protection device according to claim 1, characterized in that: The protective member also includes a second connecting portion, which is arranged between the connecting flange and the supporting plate. The second connecting portion is provided with an avoidance hole for avoiding the ceramic filter tube. The ceramic filter tube is passed through the avoidance hole to enable the connecting flange to press against the second connecting portion.

3. A ceramic filter tube protection device according to claim 2, characterized in that: The cross section of the first connecting portion is circular, and the first connecting portion and the second connecting portion cover the inner wall of the mounting hole and the edge of the mounting hole close to the connecting flange.

4. A ceramic filter tube protection device according to claim 3, characterized in that: The first connection portion and the second connection portion are integrally formed, and an inner wall of the first connection portion is coplanar with an inner wall of the avoidance hole.

5. The ceramic filter tube protection device according to claim 2, characterized in that: The distance between the edge of the second connecting portion and the central axis of the ceramic filter tube is greater than or equal to the distance between the edge of the connecting flange and the central axis of the ceramic filter tube.

6. A ceramic filter tube protection device according to claim 1 or 5, characterized in that: One end of the first connecting portion away from the connecting flange is located outside the edge of the inner wall of the mounting hole.

7. The ceramic filter tube protection device according to claim 4, characterized in that: The protective element is made of a compressible and high-temperature resistant material.

8. The ceramic filter tube protection device according to claim 1, characterized in that: The limiting assembly includes a pressing plate and a fastener. The pressing plate is arranged on a side of the connecting flange away from the supporting plate. The fastener locks the pressing plate to the supporting plate so that the pressing plate presses against the connecting flange.

9. The ceramic filter tube protection device according to claim 8, characterized in that: The limiting assembly further includes a distance tube arranged on the supporting plate, and two distance tubes are provided and are respectively located on both sides of the ceramic filter tube.

10. The ceramic filter tube protection device according to claim 8, characterized in that: The fastener is a bolt and nut structure.

Images