High-temperature-resistant and dew-resistant filter bag type industrial flue gas dust removal device

Abstract

This invention relates to the field of flue gas dust removal technology, specifically a high-temperature resistant, anti-condensation filter bag industrial flue gas dust removal device. Addressing the problems of existing filter bag dust collectors when handling high-temperature, high-humidity flue gas, such as difficulty in balancing high-temperature resistance and anti-condensation, easy condensation and caking of filter bags, high energy consumption for cleaning, and cumbersome operation and maintenance, this device includes a supporting mounting cylinder and symmetrically arranged four-sided guide cylinders. The cylinders contain a flow equalization mechanism and a combined dust removal mechanism. The combined dust removal mechanism uses an array-type anti-condensation filter bag dust removal module, with an internal conical passive guide spiral plate to achieve pre-gas-water separation, and uses the kinetic energy of the flue gas to drive the filter bags to periodically self-oscillate and clean. This invention achieves synergistic optimization of high-temperature resistance and anti-condensation, resulting in stable dust removal efficiency, no need for additional cleaning power, and a modular quick-installation structure for core components, making operation and maintenance convenient and cost-effective. It is suitable for dust removal treatment of various industrial high-temperature, high-humidity flue gases.

Description

Technical Field

[0001] This invention relates to the field of flue gas dust removal technology, and in particular to a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device. Background Technology

[0002] In industrial production processes, industries such as metallurgy, chemicals, building materials, and waste incineration generate large amounts of high-temperature and high-humidity industrial flue gas. This flue gas contains various pollutants, including dust and harmful gases. If emitted directly without effective treatment, it will cause serious harm to the atmospheric environment. Baghouse dust collectors, with their advantages of simple structure, high dust removal efficiency, and wide applicability to various types of dust, have become one of the most widely used devices in the field of industrial flue gas dust removal.

[0003] However, existing baghouse dust collectors generally suffer from numerous intractable technical defects when handling high-temperature and high-humidity flue gas, severely restricting the equipment's operational stability, dust removal efficiency, and service life, and failing to adequately meet the actual needs of industrial production. Firstly, high-temperature flue gas places stringent requirements on the high-temperature resistance of the equipment. Existing devices often employ single heat dissipation or insulation structures, making it difficult to achieve a balance between high-temperature resistance and anti-condensation. Some devices have insufficient heat dissipation capacity, and internal components are prone to deformation, aging, and damage due to long-term exposure to high-temperature flue gas, resulting in high equipment failure rates and short service life. Conversely, some devices use forced cooling methods to improve high-temperature resistance, which causes a sudden drop in flue gas temperature, leading to rapid condensation of water vapor in the flue gas, further exacerbating subsequent filter bag damage.

[0004] Filter bag condensation and caking is a prominent industry pain point for existing equipment. The moisture generated by condensation causes dust particles on the filter bag surface to adhere together, forming a hard, dense caking layer that clogs the filter bag's pores, leading to a significant increase in filtration resistance and a marked decrease in dust removal efficiency. In severe cases, the caking layer can cause the filter bag to completely fail, requiring frequent shutdowns for replacement. This not only significantly increases equipment maintenance costs but also affects the continuous operation of the entire production system. Furthermore, most existing equipment lacks an effective pre-gas-water separation structure, meaning that moisture in the flue gas cannot be separated in advance and can only directly contact the filter bag, making it impossible to prevent condensation from occurring at the source.

[0005] Secondly, the existing dust removal systems of bag filters have significant shortcomings. Traditional pulse-jet cleaning requires a complex compressed air source and control system, resulting in complex equipment structure, high energy consumption, and limited cleaning effectiveness, making it difficult to effectively remove the condensation layer formed by condensation. Some cleaning methods also subject the filter bags to strong impacts, accelerating their damage and aging. Furthermore, the flow field design of existing devices is not reasonable enough, leading to uneven distribution of flue gas after entering the device. This causes some filter bags to be overloaded and damaged prematurely, while others fail to perform their intended function, resulting in unstable overall dust removal efficiency.

[0006] Furthermore, the existing equipment generally has a low degree of modularity, and the disassembly and replacement of core components is cumbersome, requiring a significant amount of manpower and time, resulting in low operation and maintenance efficiency. Some units also suffer from internal dust and liquid accumulation, and water carried over in exhaust gas, which can easily cause secondary pollution and further affect the operational reliability of the equipment.

[0007] The present invention aims to solve the technical problems existing in the prior art. To this end, a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device is proposed. Summary of the Invention

[0008] The purpose of this invention is to provide a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device to solve the technical problems existing in the prior art.

[0009] This invention provides a high-temperature resistant, anti-condensation filter bag type industrial flue gas dust removal device, comprising a vertically arranged support mounting cylinder, with four-sided guide cylinders symmetrically arranged at the upper and lower ends of the support mounting cylinder, each four-sided guide cylinder having a guide mounting plate at its outer end, and a converging guide cylinder on the guide mounting plate. An air inlet duct is located at the outer end of the upper converging guide cylinder, and a liquid discharge duct is located at the outer end of the lower converging guide cylinder. Both the air inlet and liquid discharge ducts have connecting flanges at their outer ends. A solenoid valve is connected in series on the liquid discharge duct. Several support mounting frames are arranged at equal angles on the lower four-sided guide cylinder, and each support mounting frame has a support pad at its lower end. The device also includes:

[0010] The working installation plate is horizontally arranged inside the support installation cylinder, and several exhaust pipes are arranged at equal angles on the wall of the support installation cylinder below the working installation plate.

[0011] The flow equalization mechanism is installed inside the support mounting cylinder above the working mounting plate, and includes several sets of flow equalization mesh plates arranged in parallel.

[0012] The combined dust removal mechanism is mounted on the working mounting plate. The working mounting plate has several variable diameter mounting holes arranged in an array. The lower end of each variable diameter mounting hole is provided with an annular limiting groove. Anti-condensation filter bag dust removal modules are provided in conjunction with each variable diameter mounting hole.

[0013] One end of the exhaust duct is connected to the inside of the support mounting cylinder, and the other end of the exhaust duct is connected to a drive fan. The outer end of the drive fan is connected to a connecting duct, and the outer end of the connecting duct is also connected to a connecting flange.

[0014] As a further aspect of the present invention: a vacuum cavity is provided inside the wall of the support mounting cylinder.

[0015] As a further aspect of the present invention: an arc-shaped baffle is provided on the inner wall of the support mounting cylinder on the upper side of the exhaust duct.

[0016] As a further aspect of the present invention: the anti-condensation filter bag dust removal module includes a variable diameter mounting cylinder that is configured to cooperate with the variable diameter mounting hole. The bottom of the variable diameter mounting cylinder is configured with a limit mounting ring that cooperates with the annular limit groove. The limit mounting ring and the annular limit groove are provided with a plurality of fixed mounting holes at equal angles.

[0017] As a further embodiment of the present invention: a transmission mounting cylinder is vertically arranged in the middle of the inner part of the variable diameter mounting cylinder. A limit rotating sleeve is provided at the upper end of the transmission mounting cylinder, and a displacement guide cylinder is provided at the lower end of the transmission mounting cylinder. A limit rotating column is provided in conjunction with the limit rotating sleeve. A displacement bearing sleeve is movably arranged in conjunction with the displacement guide cylinder. A displacement rotating shaft is provided in conjunction with the displacement bearing sleeve. Both the displacement rotating shaft and the limit rotating column extend into the transmission mounting cylinder. A docking transmission prism is provided at one end of the displacement rotating shaft that extends into the transmission mounting cylinder. A docking transmission prism that mates with the docking transmission prism is provided at one end of the limit rotating column that extends into the transmission mounting cylinder. A return spring is provided in the displacement guide cylinder on one side of the displacement bearing sleeve.

[0018] As a further aspect of the present invention: the inner wall of the upper half of the variable diameter mounting cylinder is provided with an annular groove, and the lower end of the annular groove is provided with a plurality of drainage guide holes at equal angles. The lower end of the variable diameter mounting cylinder is provided with a diversion drainage pipe in conjunction with the drainage guide holes. A conical passive flow guiding spiral plate is provided on the limiting rotating column corresponding to the annular groove, and the outermost edge of the conical passive flow guiding spiral plate extends into the annular groove.

[0019] As a further aspect of the present invention: a stepped mounting groove is provided on the inner side of the lower end of the variable diameter mounting cylinder, and a stepped mounting cylinder is provided in conjunction with the stepped mounting groove. The inner side of the stepped mounting cylinder is connected to the outer wall of the transmission mounting cylinder through guide mounting plates set at equal angles.

[0020] As a further aspect of the present invention: a positioning mounting ring is provided at the lower end of the stepped mounting cylinder, and an annular positioning groove is provided at the lower end of the stepped mounting groove in conjunction with the positioning mounting ring. The annular positioning groove and the positioning mounting ring are provided with a plurality of fixing mounting holes at equal angles.

[0021] As a further aspect of the present invention: a dust filter bag is provided at the lower end of the stepped mounting cylinder, a fixing ring is provided at the upper end of the dust filter bag, and an annular groove is provided at the lower end of the stepped mounting cylinder in conjunction with the fixing ring.

[0022] As a further embodiment of the present invention: a synchronous rotating column is coaxially provided at the lower end of the displacement shaft, and a number of traction groups are provided at equal intervals on the synchronous rotating column. The traction group includes a number of traction ropes arranged at equal angles on the synchronous rotating column. The outer end of the traction rope is provided with a limit ball, and the inner side of the dust bag is provided with the limit ball and is provided with a limit sleeve.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] It exhibits excellent high-temperature resistance and precise, reasonable temperature control. A flow equalization mechanism is constructed using multi-layered, high-thermal-conductivity flow equalization mesh plates. This mechanism slows down and evenly distributes the high-temperature flue gas entering the cylinder, while simultaneously achieving multi-stage gradient heat dissipation. This effectively reduces the thermal shock of the high-temperature flue gas to the internal components of the device, ensuring stable operation under long-term high-temperature conditions. Furthermore, the built-in vacuum chamber structure within the cylinder wall significantly reduces the efficiency of internal and external heat exchange, maintains stable internal temperature, and increases the flue gas dew point. This avoids the problem of increased condensation caused by simple forced cooling in traditional devices, achieving a balance between high-temperature resistance and anti-condensation.

[0025] Multiple anti-condensation synergistic designs completely solve the problem of filter bag caking. On the one hand, a conical passive guide spiral plate is set at the front end of each filter bag dust removal module. Driven by the flow velocity of the flue gas itself, it rotates without the need for additional power input. Its large surface area and high heat dissipation characteristics form a local low-temperature dew point zone, which causes the moisture in the flue gas to liquefy in advance. The moisture is then thrown into the surrounding annular pocket by the centrifugal force of rotation and discharged centrally through the drain guide hole and the diversion drain pipe, realizing gas-water pre-separation and preventing moisture from directly contacting the filter bag from the source. On the other hand, the innovatively designed self-oscillating dust removal structure can automatically drive the filter bag to periodically complete the contraction and reset oscillation through the kinetic energy of the flue gas. This timely removes the caking layer formed by a small amount of condensation on the surface of the filter bag, continuously restores the dust filtration performance, and significantly extends the service life of the filter bag.

[0026] The dust removal efficiency is stable and highly adaptable to various operating conditions. The multi-layered flow equalization mesh plate ensures a uniform downward flow field of flue gas within the supporting mounting cylinder, guaranteeing consistent flue gas load for each filter bag dust collector module and preventing reduced dust removal efficiency and premature filter bag damage due to localized overload. The drive fan configured on the exhaust duct actively adjusts the flue gas exhaust speed, precisely controlling the internal temperature to optimize anti-condensation effects and flexibly adjusting dust removal efficiency based on flue gas concentration and throughput. Furthermore, the working mounting plate features an array of variable-diameter mounting holes, allowing for flexible adjustments to the number of filter bag dust collector modules to meet different production needs and adapt to varying flue gas treatment scales.

[0027] The fully modular, quick-assembly structure ensures convenient operation and low cost. All core dust removal units adopt a modular, quick-assembly design. The variable-diameter mounting cylinder and working mounting plate, as well as the stepped mounting cylinder and variable-diameter mounting cylinder, achieve precise and rapid positioning via limit rings and positioning grooves, requiring only a few bolts for fixation. Filter bags are quickly installed and removed using fixing rings and annular grooves. The connection between the traction rope and the filter bag uses a quick-connect method with limit balls and limit sleeves, allowing for filter bag replacement and routine maintenance without complex tools. Furthermore, the self-vibrating dust removal system eliminates the need for an additional pulse cleaning system and compressed air source, significantly simplifying the equipment structure, reducing operating energy consumption and failure rate, and substantially lowering subsequent operation and maintenance costs.

[0028] Stable and reliable operation with no risk of secondary pollution. The symmetrical four-sided guide tube and converging guide tube structure ensure smooth flue gas flow without dead corners, avoiding the problem of ash and liquid accumulation inside the tube. The arc-shaped baffle at the exhaust duct inlet effectively blocks liquefied droplets from entering the exhaust system, preventing secondary water carryover. The drain duct is equipped with a solenoid valve, which enables timed automatic draining, ensuring centralized collection and treatment of waste liquid. The overall support structure uses four-sided guide tubes combined with multiple sets of support mounting brackets and pads, providing high rigidity and stability, and adapting to the complex operating environment of industrial sites. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a top-side view schematic diagram of a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device.

[0031] Figure 2 This is a side view of a high-temperature resistant, anti-condensation filter bag type industrial flue gas dust removal device.

[0032] Figure 3 This is a partial cross-sectional schematic diagram of a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device.

[0033] Figure 4 for Figure 3 A diagram from another perspective.

[0034] Figure 5 for Figure 4 An enlarged schematic diagram of point a in the middle.

[0035] Figure 6 This is a partial cross-sectional schematic diagram of the combined dust removal mechanism in a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device.

[0036] Figure 7 This is a partial cross-sectional schematic diagram of the working mounting plate in a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device.

[0037] Figure 8 for Figure 7 Enlarged diagram of point b in the middle.

[0038] Figure 9 This is a partial cross-sectional schematic diagram of the anti-condensation filter bag dust removal module in a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device.

[0039] Figure 10 for Figure 9 A schematic diagram showing the removal of the reducing sleeve.

[0040] Figure 11 for Figure 10 An enlarged view of point c in the middle.

[0041] Figure 12 for Figure 10 A magnified view of point d in the middle.

[0042] Figure 13 This is a schematic diagram of the connection between the connecting drive prism and the connecting drive cylinder in a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device.

[0043] 1-Support mounting cylinder, 2-Four-sided guide cylinder, 3-Guide mounting plate, 4-Converging guide cylinder, 5-Inlet duct, 6-Exhaust duct, 7-Drainage duct, 8-Solenoid valve, 9-Support mounting bracket, 10-Support pad, 11-Connecting flange, 12-Flow equalization mesh plate, 13-Working mounting plate, 14-Dust filter bag, 15-Vacuum chamber, 16-Drive fan, 17-Limit mounting ring, 18-Diverter drainage pipe, 19-Connecting duct, 20-Arc-surface baffle, 21-Variable diameter mounting cylinder, 22-Variable diameter mounting hole, 23-Positioning mounting ring, 24-Annular limit groove, 25-Fixed 26-Mounting hole, 27-Drainage guide hole, 28-Connecting transmission prism, 29-Flow guide mounting plate, 30-Displacement guide cylinder, 31-Stepped mounting cylinder, 32-Synchronous rotating column, 33-Traction rope, 34-Limiting ball, 35-Displacement bearing sleeve, 36-Displacement rotating shaft, 37-Reset spring, 38-Stepped mounting groove, 39-Fixing retaining ring, 40-Annular groove, 41-Limiting sleeve, 42-Connecting transmission prism, 43-Transmission mounting cylinder, 44-Limiting rotating sleeve, 45-Limiting rotating column, 46-Conical passive flow guide spiral plate, 47-Annular positioning groove. Detailed Implementation

[0044] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0045] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0046] Example 1, please refer to the figure. Figures 1-4 In this embodiment of the invention, a high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device includes a vertically arranged support mounting cylinder 1. Four-sided guide cylinders 2 are symmetrically arranged at the upper and lower ends of the support mounting cylinder 1. A guide mounting plate 3 is provided at the outer end of each four-sided guide cylinder 2. A converging guide cylinder 4 is provided on the guide mounting plate 3. An air inlet pipe 5 is provided at the outer end of the upper converging guide cylinder 4, and a drain pipe 7 is provided at the outer end of the lower converging guide cylinder 4. A connecting flange 11 is provided at the outer end of both the air inlet pipe 5 and the drain pipe 7. A solenoid valve 8 is connected in series on the drain pipe 7. Several support mounting frames 9 are arranged at equal angles on the lower four-sided guide cylinder 2. Each support mounting frame 9 has a support pad 10 at its lower end. The device also includes:

[0047] The working installation plate 13 is horizontally arranged inside the support installation cylinder 1, and a number of exhaust pipes 6 are arranged at equal angles on the cylinder wall of the support installation cylinder 1 below the working installation plate 13.

[0048] The flow equalization mechanism is set inside the support mounting cylinder 1 above the working mounting plate 13. It includes several sets of flow equalization mesh plates 12 arranged in parallel. The flow equalization mesh plates 12 are made of a material with high thermal conductivity, such as copper or aluminum.

[0049] The combined dust removal mechanism is set on the working mounting plate 13. The working mounting plate 13 has a number of variable diameter mounting holes 22 arranged in an array. The lower end of each variable diameter mounting hole 22 is provided with an annular limiting groove 24. Anti-condensation filter bag dust removal modules are provided in conjunction with each variable diameter mounting hole 22.

[0050] The air inlet pipe 5 and the liquid outlet pipe 7 are connected to the external industrial flue gas input mechanism and waste liquid collection mechanism respectively through the connecting flange 11. Then, according to the flow rate, the corresponding number of exhaust pipes 6 are selected to connect to the external waste gas re-treatment mechanism.

[0051] Industrial flue gas is introduced through the inlet duct 5 and enters the upper quadrangular guide tube 2 through the upper converging guide tube 4. Due to the high initial temperature, it floats on the upper part of the support mounting tube 1. As the industrial flue gas is continuously introduced, it is guided downward. First, it passes through the flow equalization mechanism and several sets of parallel flow equalization mesh plates 12, which can slow down and evenly distribute the industrial flue gas. At the same time, through the multi-stage heat dissipation of the multi-layer flow equalization mesh plates 12, the heat of the industrial flue gas can be significantly reduced, enabling the device to have the ability to withstand high temperatures.

[0052] The uniformly guided industrial flue gas flows downwards evenly within the support mounting cylinder 1. After being processed by several anti-condensation filter bag dust removal modules on the combined dust removal mechanism, the moisture in the industrial flue gas is liquefied in advance. The liquefied industrial flue gas is then filtered and enters the support mounting cylinder 1 below the working mounting plate 13. Subsequently, it is introduced into the external waste gas re-treatment mechanism through the exhaust pipe 6. The liquefied water adsorbs some impurities in the industrial waste gas and drips downwards, entering the lower four-sided guide cylinder 2. Then, it enters the external waste liquid collection mechanism through the converging guide cylinder 4 and the drain pipe 7.

[0053] Example 2, based on Example 1, please refer to... Figures 3-5 In this embodiment of the invention, one end of the exhaust duct 6 is connected to the inside of the support mounting cylinder 1, and the other end of the exhaust duct 6 is connected to a drive fan 16. The outer end of the drive fan 16 is provided with a connecting duct 19, and the outer end of the connecting duct 19 is also provided with a connecting flange 11. Arc-shaped baffles 20 are provided on the inner wall of the support mounting cylinder 1 on the upper side of the exhaust duct 6.

[0054] A vacuum chamber 15 is provided inside the cylinder wall of the support mounting cylinder 1.

[0055] Because a vacuum chamber 15 is provided inside the cylinder wall of the support mounting cylinder 1, the loss of internal heat can be significantly reduced, ensuring that the temperature inside the support mounting cylinder 1 remains stable at a relatively high temperature, increasing the dew point of the industrial flue gas inside the support mounting cylinder 1, and reducing the impact of condensation on the dust filter bag 14.

[0056] By driving the fan 16, the exhaust speed of the flue gas in the support mounting cylinder 1 can be actively controlled. On the one hand, the temperature in the support mounting cylinder 1 can be adjusted, and on the other hand, the dust removal efficiency of the device can be adjusted. The arc-shaped baffle 20 can prevent liquefied droplets from entering the exhaust duct 6 without affecting the gas exhaust.

[0057] Example 3, based on Example 2, please refer to... Figures 1 to 13 In this embodiment of the invention, the anti-condensation filter bag dust removal module includes a variable diameter mounting cylinder 21 that is configured to cooperate with the variable diameter mounting hole 22. The bottom of the variable diameter mounting cylinder 21 is configured to cooperate with the annular limiting groove 24 to provide a limiting mounting ring 17. The limiting mounting ring 17 and the annular limiting groove 24 are provided with a plurality of fixed mounting holes 25 at equal angles.

[0058] A transmission mounting cylinder 43 is vertically arranged in the middle of the inner part of the variable diameter mounting cylinder 21. A limiting rotating sleeve 44 is provided at the upper end of the transmission mounting cylinder 43, and a displacement guide cylinder 30 is provided at the lower end of the transmission mounting cylinder 43. A limiting rotating column 45 is provided in cooperation with the limiting rotating sleeve 44. A displacement bearing sleeve 35 is movably arranged in cooperation with the displacement guide cylinder 30. A displacement rotating shaft 36 is provided in cooperation with the displacement bearing sleeve 35. Both the displacement rotating shaft 36 and the limiting rotating column 45 extend into the transmission mounting cylinder 43. A docking transmission prism 42 is provided at one end of the displacement rotating shaft 36 that extends into the transmission mounting cylinder 43. A docking transmission prism 28 that cooperates with the docking transmission prism 42 is provided at one end of the limiting rotating column 45 that extends into the transmission mounting cylinder 43. A return spring 37 is provided in the displacement guide cylinder 30 on one side of the displacement bearing sleeve 35.

[0059] The upper half of the inner wall of the variable diameter mounting cylinder 21 is provided with an annular groove 26. The lower end of the annular groove 26 is provided with a plurality of drainage guide holes 27 at equal angles. The lower end of the variable diameter mounting cylinder 21 is provided with a diversion drainage pipe 18 in conjunction with the drainage guide holes 27. The limiting rotating column 45 corresponding to the annular groove 26 is provided with a conical passive flow guiding spiral plate 46. The outermost edge of the conical passive flow guiding spiral plate 46 extends into the annular groove 26.

[0060] The lower inner side of the variable diameter mounting cylinder 21 is provided with a stepped mounting groove 38, and a stepped mounting cylinder 31 is provided in conjunction with the stepped mounting groove 38. The inner side of the stepped mounting cylinder 31 is connected to the outer wall of the transmission mounting cylinder 43 through a guide mounting plate 29 set at equal angles.

[0061] The lower end of the stepped mounting cylinder 31 is provided with a positioning mounting ring 23, and the lower end of the stepped mounting groove 38 is provided with an annular positioning groove 47 in conjunction with the positioning mounting ring 23. The annular positioning groove 47 and the positioning mounting ring 23 are provided with a plurality of fixed mounting holes 25 at equal angles.

[0062] The lower end of the stepped mounting cylinder 31 is provided with a dust filter bag 14, the upper end of the dust filter bag 14 is provided with a fixing ring 39, and the lower end of the stepped mounting cylinder 31 is provided with an annular groove 40 in conjunction with the fixing ring 39.

[0063] The lower end of the displacement shaft 36 is coaxially provided with a synchronous rotating column 32. Several traction groups are equally spaced on the synchronous rotating column 32. The traction group includes several traction ropes 33 arranged at equal angles on the synchronous rotating column 32. The outer end of the traction rope 33 is provided with a limiting ball 34. The inner side of the dust bag 14 is provided with the limiting ball 34 and is provided with the limiting sleeve 41. The limiting ball 34 and the limiting sleeve 41 cooperate to quickly realize the stable loading and unloading of the dust bag 14.

[0064] Industrial flue gas enters through the variable diameter mounting cylinder 21 and first comes into contact with the conical passive guide spiral plate 46. With the cooperation of the limiting rotating column 45 and the limiting rotating sleeve 44, the industrial flue gas with flow rate and temperature causes the conical passive guide spiral plate 46 and the limiting rotating column 45 to rotate synchronously. Since the conical passive guide spiral plate 46 has a large surface area, its heat dissipation is better than that of the variable diameter mounting cylinder 21 and the working mounting plate 13. Therefore, the dew point on the conical passive guide spiral plate 46 is lower. The moisture in the industrial flue gas liquefies on the conical passive guide spiral plate 46 and is thrown into the annular pocket 26 as the conical passive guide spiral plate 46 rotates. As more and more moisture is liquefied, it flows through each drain guide hole 27 and the diversion drain pipe 18 and drips downward.

[0065] Under the action of the return spring 37, in the initial state, the docking transmission prism 42 is inserted into the docking transmission cylinder 28. Simultaneously with the rotation of the limiting rotating column 45, the displacement shaft 36 and the synchronous rotating column 32 rotate synchronously through the transmission of the docking transmission prism 42 and the docking transmission cylinder 28. As the number of rotations of the synchronous rotating column 32 increases, the traction rope 33 winds up on the synchronous rotating column 32. In the non-winding state, the traction rope 33 becomes shorter. With the cooperation of the limiting ball 34 and the limiting sleeve 41, the traction rope 33 pulls the dust bag 14 towards the synchronous rotating column 32, causing the dust bag 14 to fold and contract. At the same time, the reaction force of the traction rope 33 also pulls the synchronous rotating column 32, causing the displacement shaft... The sleeve 35 slides along the inner wall of the displacement guide cylinder 30. At this time, the docking drive prism 42 gradually moves away from the docking drive cylinder 28 until the docking drive prism 42 disengages from the docking drive cylinder 28. The transmission of the limiting rotation column 45 fails, the industrial flue gas velocity flowing through the variable diameter mounting cylinder 21 increases, the tension of the dust filter bag 14 increases, and under the superposition of the reset force of the reset spring 37, the dust filter bag 14 quickly resets and generates gradually decaying oscillations, causing the small amount of condensation inside the dust filter bag 14 to fall off or break, restoring the dust filtration performance of the dust filter bag 14. As dust filtration proceeds, each anti-condensation filter bag dust removal module will repeat the above steps in a cycle, significantly improving the efficiency and quality of dust filtration.

[0066] The variable diameter mounting cylinder 21 and the variable diameter mounting hole 22 are quickly assembled by the cooperation of the limiting mounting ring 17 and the annular limiting groove 24. The stepped mounting cylinder 31 and the stepped mounting groove 38 are quickly assembled by the cooperation of the annular positioning groove 47 and the positioning mounting ring 23. They are then fixed with the fixed mounting hole 25 and the matching bolts or screws.

[0067] The combination of the retaining ring 39 and the annular groove 40 enables the quick assembly and disassembly of the dust bag 14, facilitating subsequent cleaning and replacement.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-temperature resistant, anti-condensation filter bag type industrial flue gas dust removal device, comprising a vertically arranged support mounting cylinder, with symmetrically arranged four-sided guide cylinders at the upper and lower ends of the support mounting cylinder, each four-sided guide cylinder having a guide mounting plate at its outer end, a converging guide cylinder on the guide mounting plate, an air inlet duct at the outer end of the upper converging guide cylinder, and a liquid discharge duct at the outer end of the lower converging guide cylinder, both the air inlet and liquid discharge ducts having connecting flanges at their outer ends, a solenoid valve connected in series on the liquid discharge duct, and a plurality of support mounting frames arranged at equal angles on the lower four-sided guide cylinder, each support mounting frame having a support pad at its lower end, characterized in that... Also includes: A vacuum chamber is provided inside the wall of the support mounting cylinder; The working installation plate is horizontally arranged inside the support installation cylinder, and several exhaust pipes are arranged at equal angles on the wall of the support installation cylinder below the working installation plate. The flow equalization mechanism is installed inside the support mounting cylinder above the working mounting plate, and includes several sets of flow equalization mesh plates arranged in parallel. The combined dust removal mechanism is mounted on the working mounting plate. The working mounting plate has several variable diameter mounting holes arranged in an array. The lower end of each variable diameter mounting hole is provided with an annular limiting groove. Anti-condensation filter bag dust removal modules are provided in conjunction with each variable diameter mounting hole.

2. The high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device according to claim 1, characterized in that, One end of the exhaust duct is connected to the inside of the support mounting cylinder, and the other end of the exhaust duct is connected to a drive fan. The outer end of the drive fan is connected to a connecting duct, and the outer end of the connecting duct is also connected to a connecting flange.

3. The high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device according to claim 2, characterized in that, The inner wall of the support mounting cylinder on the upper side of the exhaust duct is provided with an arc-shaped baffle.

4. The high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device according to claim 1, characterized in that, The anti-condensation filter bag dust removal module includes a variable diameter mounting cylinder that is configured to cooperate with the variable diameter mounting hole. The bottom of the variable diameter mounting cylinder is configured with a limit mounting ring that cooperates with the annular limit groove. The limit mounting ring and the annular limit groove are provided with a number of fixed mounting holes at equal angles.

5. The high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device according to claim 4, characterized in that, A transmission mounting cylinder is vertically installed in the middle of the inner part of the variable diameter mounting cylinder. A limit rotating sleeve is provided at the upper end of the transmission mounting cylinder, and a displacement guide cylinder is provided at the lower end of the transmission mounting cylinder. A limit rotating column is provided in conjunction with the limit rotating sleeve. A displacement bearing sleeve is movably installed in conjunction with the displacement guide cylinder. A displacement rotating shaft is provided in conjunction with the displacement bearing sleeve. Both the displacement rotating shaft and the limit rotating column extend into the transmission mounting cylinder. A docking transmission prism is provided at the end of the displacement rotating shaft that extends into the transmission mounting cylinder. A docking transmission prism that mates with the docking transmission prism is provided at the end of the limit rotating column that extends into the transmission mounting cylinder. A return spring is provided in the displacement guide cylinder on one side of the displacement bearing sleeve.

6. The high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device according to claim 5, characterized in that, The upper half of the inner wall of the variable diameter mounting cylinder is provided with an annular groove. The lower end of the annular groove is provided with several drainage guide holes at equal angles. The lower end of the variable diameter mounting cylinder is provided with a diversion drainage pipe in conjunction with the drainage guide holes. A conical passive flow guiding spiral plate is provided on the limiting rotating column corresponding to the annular groove. The outermost edge of the conical passive flow guiding spiral plate extends into the annular groove.

7. The high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device according to claim 5, characterized in that, The lower inner side of the variable diameter mounting cylinder is provided with a stepped mounting groove, and a stepped mounting cylinder is provided in conjunction with the stepped mounting groove. The inner side of the stepped mounting cylinder is connected to the outer wall of the transmission mounting cylinder through guide mounting plates set at equal angles.

8. The high-temperature resistant and anti-condensation filter bag type industrial flue gas dust removal device according to claim 7, characterized in that, The lower end of the stepped mounting cylinder is provided with a positioning mounting ring, and the lower end of the stepped mounting groove is provided with an annular positioning groove in conjunction with the positioning mounting ring. The annular positioning groove and the positioning mounting ring are provided with a number of fixing mounting holes at equal angles.

9. A high-temperature resistant, anti-condensation filter bag type industrial flue gas dust removal device according to claim 7, characterized in that, The lower end of the stepped mounting cylinder is provided with a dust filter bag, the upper end of the dust filter bag is provided with a fixing ring, and the lower end of the stepped mounting cylinder is provided with an annular groove in conjunction with the fixing ring.

10. A high-temperature resistant, anti-condensation filter bag type industrial flue gas dust removal device according to claim 9, characterized in that, The lower end of the displacement shaft is coaxially provided with a synchronous rotating column, and several traction groups are equally spaced on the synchronous rotating column. Each traction group includes several traction ropes arranged at equal angles on the synchronous rotating column. The outer end of the traction rope is provided with a limit ball, and the inner side of the dust bag is provided with the limit ball and is set in a limit sleeve.

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