Candle filter for waste gas filtration treatment

Abstract

The invention relates to the technical field of waste gas treatment, in particular to a candle filter for waste gas filtration treatment, which comprises a filter body, a top cover is hermetically mounted at the top of the filter body, and treatment cavities are arranged at adjacent positions of two sides of a cleaning cavity; a top plate is fixedly arranged at the top of the third sealing plate; the sealing assembly comprises a sealing plate slidably mounted on the inner wall of the storage groove and first telescopic rods mounted at the two ends of the inner wall of the sealing plate; the driving assembly comprises a U-shaped frame fixedly arranged on the inner wall of the driving groove and a motor mounted in the U-shaped frame; the butt joint assembly comprises a fixing ring fixedly arranged in the middle of the inner wall of the middle cylinder and double-end telescopic rods evenly installed in the fixing ring at intervals in the circumferential direction of the inner wall of the middle cylinder. According to the candle filter for waste gas filtration treatment, the downtime can be shortened, waste gas can be continuously filtered out, back flushing energy is controlled, waste is reduced, and meanwhile the filter cloth is rapidly replaced.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and more particularly to a candle filter for waste gas filtration. Background Technology

[0002] Waste gas treatment, also known as waste gas purification, refers to the pretreatment of waste gas generated in industrial sites and factory workshops before it is discharged to meet national standards for waste gas discharge. Generally, waste gas treatment includes organic waste gas treatment, dust waste gas treatment, acid and alkali waste gas treatment, odor waste gas treatment, and air sterilization, disinfection and purification. Candle filters are a type of deep, regenerable cake filter widely used in industries such as chemical, pharmaceutical, food and beverage, water treatment, mining, and metallurgy. They are particularly suitable for treating suspensions with high solid content, high viscosity, and difficulty in filtration, and can produce very clear filtrate. Candle filters can also be used for exhaust gas filtration under certain conditions, but their application scenarios are relatively limited, and they usually require special design and optimization for the characteristics of the exhaust gas. They are not mainstream equipment for exhaust gas treatment (such as bag filters, electrostatic precipitators, and wet scrubbing towers). However, they have unique advantages for certain special needs, such as high-temperature and corrosive gases, high-value-added dust recovery, high-precision filtration requirements, and explosion-proof and high-pressure environments. For example, existing public documents CN105056596B – A filter for liquid media and CN119386531A – A candle filter disclose a candle filter. While existing candle filters for waste gas filtration can filter waste gas, they still have certain shortcomings in practical use: First, the current candle filters for waste gas filtration use an integrated design where multiple filter candles and filter candle holders are installed in the filter. The dust in the waste gas is highly adhesive, making it difficult for backflushing to effectively remove the filter cake, requiring frequent shutdowns for manual cleaning, thus affecting the waste gas treatment efficiency. Second, during the backflushing process, the stickiness of the filter cake may prevent complete removal, leaving residual cake that reduces the effective filtration area and efficiency for subsequent filters. Furthermore, high-pressure backflushing has a stronger backflushing force on the candles closer to the gas source and a weaker force on those further away, resulting in uneven energy distribution and inconsistent sludge removal. Finally, replacing the filter cloth requires opening the top of the tank and lifting out the entire filter candle holder, a cumbersome process that is labor-intensive, time-consuming, and poses safety hazards. Therefore, it is necessary to improve the existing technology to solve these technical problems. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problem that the existing candle filters used for exhaust gas filtration have high viscosity of dust in the exhaust gas, which makes it impossible to effectively remove the filter cake by backflushing, requiring frequent shutdowns for manual cleaning and affecting the exhaust gas treatment efficiency, a new candle filter for exhaust gas filtration is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a candle filter for waste gas filtration, comprising a filter body, a top cover sealed on the top of the filter body, a cleaning chamber provided at the front end of the filter body, and treatment chambers provided on both adjacent sides of the cleaning chamber; a three-sealing plate, a top plate fixed on the top of the three-sealing plate, the outer walls of the three-sealing plate and the top plate being fixed on the inner wall of the filter body, rotating cavities being provided at the upper and lower parts of the interior of the three-sealing plate, receiving grooves being provided on the inner walls of the rotating cavities, a middle cylinder being fixed on the three-sealing plate at positions corresponding to the three chamber directions, and a driving groove being provided at one edge of the interior of the three-sealing plate; a sealing assembly, comprising a sealing plate slidably mounted on the inner wall of the receiving groove and first telescopic rods mounted at both ends of the inner wall of the sealing plate, and a sealing... A first iron plate is embedded in the center of the inner wall of the sealing plate, and a first electromagnetic block is provided at the outer end of the first iron plate. A first spring is sleeved on the outer wall of the first telescopic rod. The first electromagnetic block and the first telescopic rod are both installed on the inner wall of the storage groove, and the first electromagnetic block and the first iron plate are attracted by magnetic force. The drive assembly includes a U-shaped frame fixed on the inner wall of the drive groove and a motor installed inside the U-shaped frame. An active gear is installed on the output shaft of the motor. The docking assembly includes a fixing ring fixed in the middle of the inner wall of the middle cylinder and double-headed telescopic rods evenly spaced along the circumference of the inner wall of the middle cylinder inside the fixing ring. Both ends of the double-headed telescopic rods are equipped with docking platform cylinders. A second spring is sleeved on the upper and lower parts of the outer wall of the double-headed telescopic rods. The second spring is located between the fixing ring and the adjacent docking platform cylinder.

[0006] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, an external pipe is provided outside the cleaning chamber and the two treatment chambers. An upper trident plate and a lower trident plate are rotatably installed inside the upper and lower adjacent rotating chambers respectively. A hollow shaft is provided at the top center of the upper trident plate, and a bottom shaft is provided at the bottom center of the lower trident plate. A branch pipe is provided inside the upper trident plate.

[0007] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, wherein: a cylinder is fixedly provided at the middle of the opposite end face of the upper three-pronged plate and the lower three-pronged plate, and a driven pulley is sleeved on the outer wall of the hollow shaft and the bottom shaft; wherein the hollow shaft and the branch pipe are connected through, the top end of the hollow shaft passes through the top bearing of the three sealing plate and is connected to the discharge pipe, and the bottom end of the bottom shaft and the cylinder are respectively rotatably installed on the inner wall of the adjacent rotating chamber.

[0008] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, wherein: the upper three-pronged plate, the lower three-pronged plate and the outer wall of the cylinder are all uniformly spaced and fixed with partitions along the axial direction of the hollow shaft, and the center of the three side walls of the partitions are provided with sealing grooves, and the outer surfaces of the opposite end faces of the upper three-pronged plate and the lower three-pronged plate are all fixed with fixed arc plates, and the outer surfaces of the fixed arc plates are provided with grooves.

[0009] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, the following features are provided: a movable groove is provided at both the front and rear ends of one side wall of the fixed arc plate; filter candles are installed on the outer surfaces of the opposite end faces of the upper and lower triangular plates; a double clamp is installed on the top of the outer wall of the filter candle by bolts; a pushing ring is provided above one side wall of the double clamp; and top blocks are fixed at both ends of the pushing ring; wherein, the partition is correspondingly and sealingly installed in the adjacent rotating cavities; one side wall of the double clamp is engaged in the groove; and the top blocks are slidably installed in the sliding holes on the double clamp.

[0010] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, wherein: a driven gear disk meshes with one side of the active gear disk, a movable shaft is fixedly provided in the middle of the inner wall of the driven gear disk, a sliding groove is provided above the inner wall of the U-shaped frame, a second electromagnetic block is embedded in the middle of the two sides of the sliding groove, a spline shaft is fixedly provided in the middle of the top and bottom ends of the movable shaft, and a bearing on the movable plate is sleeved on the upper part of the outer wall of the movable shaft.

[0011] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, wherein: one end of the movable plate is slidably installed in the slide groove, and a drive shaft is provided above and below the movable shaft, and a drive pulley is sleeved on the outer wall end of the drive shaft; wherein, a second iron plate is embedded in one end of the movable plate, and the second iron plate is magnetically attracted to the second electromagnetic block; a spline groove is provided at the center of one end face of the drive shaft, and the spline shaft is slidably inserted into the spline groove; the outer wall of the drive pulley and the adjacent driven pulley are connected by a synchronous belt drive.

[0012] The beneficial effects of this invention are as follows: by setting a sealing component, a driving component, and a docking component, and since the filter body is divided into three partitions, multiple filter candles can be partitioned inside the filter body. This allows the filter candles in the cleaning chamber to be regenerated while other areas continue to work. It also allows the damaged filter candles in the cleaning chamber to be disassembled and replaced without shutting down the machine, reducing equipment downtime and improving equipment utilization and waste gas treatment efficiency.

[0013] Given that existing candle filters used for waste gas filtration have uneven energy distribution during the backflushing process to remove the filter cake, resulting in a stronger backflushing force on the candles closer to the gas source and a weaker force on those farther away, leading to inconsistent cake removal performance, a further improvement to the candle filter for waste gas filtration is proposed.

[0014] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, it further includes a slag removal component disposed at one end of the cleaning chamber. The slag removal component includes a sliding frame fixed on the inner wall of the cleaning chamber and a lifting plate slidably installed inside the sliding frame. A third electromagnetic block is embedded at both the top and bottom of the sliding frame, and a third iron plate is embedded at one end of the lifting plate.

[0015] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, wherein: a notched ring plate is fixedly provided at the outer end of the lifting plate, a rotating semi-ring plate is slidably installed at the bottom of the notched ring plate, inclined blades are evenly spaced fixedly provided on the inner side of the top of the rotating semi-ring plate, a scraper is fixedly provided on the outer side of the bottom of the rotating semi-ring plate, and a brush is installed in the middle of the inner wall of the rotating semi-ring plate; wherein, the third electromagnetic block and the third iron sheet are magnetically attracted to each other.

[0016] Another beneficial effect of the present invention is that by setting up a slag removal component, firstly, backflushing is only performed on the filter candle in the cleaning chamber area, which can ensure sufficient air volume and pressure, improve overall uniformity, and improve the utilization efficiency and uniformity of backflushing energy. While ensuring the slag removal effect, unnecessary energy waste is reduced. Then, under the action of the gas overflowing from the filter candle, the rising and falling rotating semi-ring plate rotates synchronously, and the outer wall of the filter cloth is cleaned again by scraper and brush, which improves the cleaning efficiency and effect of filter slag, while protecting the filter cloth.

[0017] Given that existing candle filters used for exhaust gas filtration require opening the top of the tank and hoisting out the entire candle holder when the filter cloth needs to be replaced, which is a cumbersome process, labor-intensive, and results in long downtime, as well as safety hazards, a further improvement to the candle filter for exhaust gas filtration is proposed.

[0018] As a preferred embodiment of the candle filter for exhaust gas filtration of the present invention, it further includes an installation assembly disposed inside the movable trough. The installation assembly includes a locking block slidably mounted on the inner wall of the movable trough and a second telescopic rod mounted on the inner wall of the locking block. A third spring is sleeved on the outer wall of the second telescopic rod. The other end of the second telescopic rod is mounted on the wall of the movable trough, and both the third spring and the second telescopic rod are located between the locking block and the wall of the movable trough.

[0019] Another beneficial effect of the present invention is that by setting the installation component, the position of the locking block is adjusted under the elastic action of the third spring, thereby realizing or releasing the limiting effect between the locking block and the sliding hole on the clamp, so that the filter candle can be quickly pulled out from the inspection door on the side of the filter without entering the tank or disassembling the top of the filter, which greatly simplifies the filter cloth replacement process, shortens downtime, and improves safety. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the candle filter used for waste gas filtration in this invention.

[0021] Figure 2 This is a horizontal cross-sectional view of the candle filter used for exhaust gas filtration in this invention.

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the three sealing plates in the structure.

[0023] Figure 4 For the present invention Figure 3 A schematic diagram showing the disassembly of the three sealing plates in the structure.

[0024] Figure 5 For the present invention Figure 4 A vertical sectional view of the three sealing plates in the structure.

[0025] Figure 6 For the present invention Figure 4 A disassembly diagram of the upper trident plate, lower trident plate, and filter candle in the structure.

[0026] Figure 7 For the present invention Figure 6 A horizontal sectional view of the upper three-pronged plate in the structure.

[0027] Figure 8 For the present invention Figure 5A schematic diagram of the sealing component in the structure.

[0028] Figure 9 For the present invention Figure 4 A schematic diagram of the upper triangular plate, lower triangular plate, and drive assembly in the structure.

[0029] Figure 10 For the present invention Figure 9 A disassembly diagram of the driving components in the structure.

[0030] Figure 11 For the present invention Figure 4 A disassembly diagram of the central cylinder and docking components in the structure.

[0031] Figure 12 For the present invention Figure 5 A schematic diagram of the slag removal component in the structure.

[0032] Figure 13 For the present invention Figure 12 A disassembly diagram of the lifting plate in the structure.

[0033] Figure 14 For the present invention Figure 6 A disassembly diagram of the fixed arc plate and filter candle in the structure.

[0034] Figure 15 For the present invention Figure 14 A horizontal sectional view of the fixed arc plate in the structure.

[0035] Figure 16 For the present invention Figure 15 A schematic diagram of the structure in which the components are installed.

[0036] The attached diagram lists the components represented by each number as follows: 100. Filter body; 101. Top cover; 102. Cleaning chamber; 103. Processing chamber; 104. External pipe; 200. Three-way sealing plate; 201. Top plate; 202. Rotating chamber; 202a. Storage slot; 203. Middle cylinder; 204. Drive slot; 205. Upper three-way plate; 205a. Hollow shaft; 205b. Branch pipe; 205c. Cylindrical shaft; 205d. Driven pulley; 206. Lower three-way plate; 20 6a. Bottom shaft; 207. Partition plate; 207a. Sealing groove; 208. Fixed arc plate; 208a. Embedded groove; 208b. Moving groove; 209. Filter candle; 2010. Double clamp; 2011. Push ring; 2011a. Top block; 300. Sealing assembly; 301. Sealing plate; 301a. First iron sheet; 302. First electromagnetic block; 303. First telescopic rod; 303a. First spring; 400. Drive. Components; 401, U-shaped frame; 401a, slide rail; 401b, second electromagnetic block; 402, motor; 402a, driving gear plate; 403, moving shaft; 403a, driven gear plate; 403b, splined shaft; 404, moving plate; 404a, second iron plate; 405, transmission shaft; 405a, splined groove; 405b, driving pulley; 500, docking assembly; 501, retaining ring; 502, double-headed telescopic... Rod; 502a, Second Spring; 503, Docking Platform Cylinder; 600, Slag Removal Assembly; 601, Sliding Frame; 601a, Third Electromagnetic Block; 602, Lifting Plate; 602a, Third Iron Sheet; 603, Notched Ring Plate; 604, Rotating Semi-Ring Plate; 604a, Inclined Blade; 605, Scraper; 606, Brush; 700, Mounting Assembly; 701, Locking Block; 702, Second Telescopic Rod; 702a, Third Spring. Detailed Implementation

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0040] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth. Example 1

[0041] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Figure 9 , Figure 10 and Figure 11 This is the first embodiment of the present invention. This embodiment provides a candle filter for exhaust gas filtration. The candle filter for exhaust gas filtration has three partitions. When the filter candle 209 in the cleaning chamber 102 is regenerated, the other partitions can continue to work. The filter candle 209 and filter cloth can also be replaced without stopping the machine, reducing equipment downtime and improving exhaust gas treatment efficiency.

[0042] Specifically, the filter body 100 has a top cover 101 sealed on its top. A cleaning chamber 102 is located at the front end of the filter body 100. Processing chambers 103 are located adjacent to both sides of the cleaning chamber 102. External pipes 104 are installed outside the cleaning chamber 102 and the two processing chambers 103. A three-sealing plate 200 has a top plate 201 fixed to its top. The outer walls of the three-sealing plate 200 and the top plate 201 are fixed to the inner wall of the filter body 100. Rotating chambers 202 are opened at the top and bottom of the three-sealing plate 200. Receiving grooves 202a are provided on the inner walls of the rotating chambers 202. Middle cylinders 203 are fixed on the three-sealing plate 200 at positions corresponding to the three chamber directions. The interior of the three-sealing plate 200... A drive groove 204 is provided at the side edge; a sealing assembly 300 includes a sealing plate 301 slidably installed on the inner wall of the receiving groove 202a and first telescopic rods 303 installed at both ends of the inner wall of the sealing plate 301; a drive assembly 400 includes a U-shaped frame 401 fixed on the inner wall of the drive groove 204 and a motor 402 installed inside the U-shaped frame 401, an active gear 402a is installed on the output shaft of the motor 402, a driven gear 403a is meshed on one side of the active gear 402a, and a moving shaft 403 is fixed in the middle of the inner wall of the driven gear 403a; and a docking assembly 500 includes a fixing ring 501 fixed in the middle of the inner wall of the middle cylinder 203 and double-headed telescopic rods 502 evenly spaced inside the fixing ring 501 along the circumferential direction of the inner wall of the middle cylinder 203.

[0043] For details, please refer to Figure 8 , Figure 9, Figure 10 and Figure 11 A first iron sheet 301a is embedded in the center of the inner wall of the sealing plate 301. A first electromagnetic block 302 is provided at the outer end of the first iron sheet 301a. A first spring 303a is sleeved on the outer wall of the first telescopic rod 303. The first electromagnetic block 302 and the first telescopic rod 303 are both installed on the inner wall of the receiving groove 202a. The first electromagnetic block 302 and the first iron sheet 301a are magnetically attracted. A sliding groove 401a is provided on the upper part of the inner wall of the U-shaped frame 401. A second electromagnetic block 401b is embedded in the middle of the two sides of the groove 401a. A splined shaft 403b is fixed at the middle of the top and bottom ends of the moving shaft 403. The upper part of the outer wall of the moving shaft 403 is sleeved in the bearing on the moving plate 404. One end of the moving plate 404 is slidably installed in the sliding groove 401a. A drive shaft 405 is provided above and below 403, and a drive pulley 405b is sleeved on the outer end of the drive shaft 405; wherein, a second iron piece 404a is embedded in one end of the moving plate 404, and the second iron piece 404a is magnetically attracted to the second electromagnetic block 401b; a spline groove 405a is provided at the center of one end face of the drive shaft 405, and a spline shaft 403b is slidably inserted into the spline groove 405a; the drive pulley 405b is connected to the outer wall of the adjacent driven pulley 205d by a synchronous belt drive; both ends of the double-headed telescopic rod 502 are equipped with docking platform cylinders 503, and a second spring 502a is sleeved on the upper and lower outer walls of the double-headed telescopic rod 502; wherein, the second spring 502a is located between the fixed ring 501 and the adjacent docking platform cylinder 503; In operation, the filter body 100 is divided into a cleaning chamber 102 and two treatment chambers 103 by three sealing plates 200. During initial use, the waste gas to be treated is introduced into each chamber through three external pipes 104. The waste gas passes through six filter candles 209 and the external filter cloth. Dust and metal dust contained within the waste gas are filtered out by the filter candles 209 and the filter cloth. With continuous filtration, the filtered waste gas is discharged from the center of the filter candles 209 through a branch pipe 205b, a hollow shaft 205a, and a discharge pipe. After treating the waste gas for a period of time, a highly adhesive filter cake adheres to the outer walls of the filter candles 209 and the filter cloth. This highly adhesive filter cake is then blown off using the slag removal assembly 600 and the backflushing system. After filtration, residual filter cake may adhere to the filter cloth. Furthermore, prolonged use may damage the filter cloth, affecting filtration efficiency. Therefore, to ensure filtration efficiency, the filter candle 209 needs to be removed and its outer filter cloth replaced. At this time, because the interior of the filter body 100 is divided into a cleaning chamber 102 and two processing chambers 103 by the three sealing plates 200, each chamber contains stacked filter candles 209 (hereinafter, the six filter candles 209 are represented by a / b / c / d / e / f, where a and d are arranged symmetrically, b and e are arranged symmetrically, and c and f are arranged symmetrically). When the filter cloth on the outer wall of the filter candle 209 in two chambers is damaged (i.e., a, d, a, e, a, f or b, f), In the event of damage to the same group or different groups, the first electromagnetic blocks 302 inside the three-sealing plate 200 are energized. The energized first electromagnetic blocks 302 generate magnetic force to attract the first iron piece 301a on the corresponding sealing plate 301, causing the sealing plate 301 to slide into the receiving groove 202a under tension, and pressing the first telescopic rod 303 and the first spring 303a. At this time, the sealing plate 301 will move out of the sealing groove 207a on the adjacent partition 207, thereby releasing the limiting effect on the partition 207 and the sealing effect at the connection. In the case of damage to the same group, the motor 402 is started. The output shaft of the motor 402 rotates, causing the active gear 402a to rotate. The active gear 402a meshes with the driven gear 403a. The rotation of the active gear 402a will... The driven gear 403a and its internal moving shaft 403 rotate synchronously (at this time, the driving gear 402a is located in the middle of the driven gear 403a, and the height of the driven gear 403a is not less than the height of three driving gears 402a). The rotation of the moving shaft 403, under the action of the spline shaft 403b and the spline groove 405a, drives the adjacent transmission shafts 405 and the driving pulley 405b on its outer wall to rotate. The outer wall of the driving pulley 405b is connected to the outer wall of the driven pulley 205d through a synchronous belt. Therefore, the rotation of the driving pulley 405b will drive the driven pulley 205d to rotate under the action of the synchronous belt, thereby driving the hollow shaft 205a and the bottom shaft 206a to rotate, so that the upper triangular plate 205 and the lower triangular plate 206 can rotate.The motor 402 is controlled by an external controller, so that each time the motor 402 runs, it can drive the upper triangular plate 205 and the lower triangular plate 206 to rotate by one chamber angle, thereby moving the damaged filter candle 209 to the cleaning chamber 102. Finally, the filter candle 209 is removed through the inspection door and the filter cloth is replaced. This is the method of changing the position of the upper and lower filter candles 209 of the same group. In the case of damage to a different group, the second electromagnetic block 401b above or below needs to be energized first. The magnetic force between the second electromagnetic block 401b and the second iron plate 404a is used to adjust the moving plate 40. 4. The height of the moving shaft 403 and the driven gear plate 403a allows the splined shaft 403b at the top or bottom of the moving shaft 403 to move out of the corresponding spline groove 405a, thus separating the moving shaft 403 from the upper or lower drive shaft 405. Then, the motor 402 can independently rotate the upper triangular plate 205 or the lower triangular plate 206, achieving independent adjustment of the upper or lower filter candle 209. This allows damaged filter candles 209 on both the upper and lower filter cloths to be simultaneously placed in the cleaning chamber 102 awaiting subsequent disassembly. The upper and lower filter candles 209 follow the upper... When the trident plate 205 and the lower trident plate 206 rotate to separate or dock, the docking point between the upper and lower filter candles 209 and the middle cylinder 203 will press against the docking platform cylinder 503. After being stressed, the end of the docking platform cylinder 503 will move inward and press against the double-headed telescopic rod 502 and the second spring 502a, allowing the filter candles 209 to move out or dock above or below the middle cylinder 203. During docking, under the elastic action of the second spring 502a, the docking platform cylinder 503 will automatically spring into the filter candle 209. Similarly, after the partition plate 207 is rotated to a certain position, the power to the first electromagnetic block 302 is stopped. At this time, Under the elastic action of the first spring 303a, the sealing plate 301 will automatically spring into the sealing groove 207a, achieving sealing and docking at the connection. Therefore, the filter body 100 is divided into three sections, realizing the partitioned setting of multiple filter candles 209 inside the filter body 100. These three partitions allow other sections to continue working while filter candles 209 in some areas are being regenerated. Simultaneously, damaged filter candles 209 in the cleaning chamber 102 can be disassembled and replaced without shutting down the machine, reducing equipment downtime and improving equipment utilization and waste gas treatment efficiency.

[0044] Furthermore, the filter body 100 is internally divided into three sections by three sealing plates 200: a cleaning chamber 102 and two treatment chambers 103. Three external pipes 104 are provided, each supplying exhaust gas to one of the three sections. The drive groove 204 is U-shaped and tilted at 90 degrees at the outer end of one plate of the three sealing plates 200. The driving gear 402a and driven gear 403a mesh to achieve transmission. The height of the driven gear 403a is not less than the height of three driving gears 402a. The two ends of the double-headed telescopic rod 502 can extend and retract. A sealing gasket is provided on the outer wall of the sealing plate 301. The sealing plate 301 is inserted into the sealing groove 20. In 7a, the sealing gasket can play a sealing role. Through the spline shaft 403b and spline groove 405a, the separation and connection transmission between the moving shaft 403 and the transmission shaft 405 are realized. By changing the current of the two second electromagnetic blocks 401b, the magnetic force between the second iron pieces 404a is controlled, thereby changing the height of the driven gear 403a. The outer end of the docking platform cylinder 503 is set with a trapezoidal inclined surface so that the trapezoidal inclined surface can move into or out of the filter candle 209. A sealing ring is set on the outer wall of the inclined surface of the docking platform cylinder 503, which plays a sealing role when the docking platform cylinder 503 and the filter candle 209 are docked.

[0045] Read in detail Figure 4 , Figure 6 , Figure 7 , Figure 9 , Figure 14 and Figure 15As shown, an upper trident plate 205 and a lower trident plate 206 are rotatably mounted inside adjacent rotating cavities 202. A hollow shaft 205a is provided at the top center of the upper trident plate 205, and a bottom shaft 206a is provided at the bottom center of the lower trident plate 206. A branch pipe 205b is provided inside the upper trident plate 205. A cylinder 205c is fixed at the middle of the opposite end face of the upper trident plate 205 and the lower trident plate 206. Driven pulleys 205d are fitted onto the outer wall of both the hollow shaft 205a and the bottom shaft 206a; the hollow shaft 205a and the branch pipe 205b are connected through each other, the top end of the hollow shaft 205a passes through the top bearing of the three-sealing plate 200 and is connected to the discharge pipe, and the bottom end of the bottom shaft 206a and the cylinder 205c are respectively rotatably mounted on the inner wall of the adjacent rotating cavity 202; the outer walls of the upper three-pronged plate 205, the lower three-pronged plate 206 and the cylinder 205c are all along the axis of the hollow shaft 205a. Partitions 207 are fixedly installed at uniform intervals along the center direction. Sealing grooves 207a are provided at the center of each of the three side walls of each partition 207. Fixed arc plates 208 are fixedly installed on the outer surfaces of the opposite end faces of the upper triangular plate 205 and the lower triangular plate 206. The outer surface of the fixed arc plates 208 is provided with grooves 208a. Movable grooves 208b are provided at the front and rear ends of one side wall of the fixed arc plates 208. Filter candles are installed on the outer surfaces of the opposite end faces of the upper triangular plate 205 and the lower triangular plate 206. 209, the top of the outer wall of the filter candle 209 is bolted with a double clamp 2010, and a push ring 2011 is provided on the upper side wall of the double clamp 2010. Both ends of the push ring 2011 are fixed with top blocks 2011a; wherein, the partition 207 is correspondingly sealed in the adjacent rotating cavity 202, one side wall of the double clamp 2010 is engaged in the groove 208a, and the top blocks 2011a are slidably installed in the sliding holes on the double clamp 2010.

[0046] Furthermore, the upper trident plate 205 and the lower trident plate 206 are symmetrically arranged, three branch pipes 205b are provided, and each vent is equipped with a solenoid valve. Two partition plates 207 are provided, which are respectively installed in the upper and lower rotating chambers 202. The curvature of the fixed arc plate 208 exceeds 180 degrees to prevent the filter candle 209 from moving out of the fixed arc plate 208 in parallel. The double clamps 2010 are provided as one large and one small clamp with different heights. The small clamp can be inserted into the groove 208a on the fixed arc plate 208. The top block 2011a is slidably installed in the sliding hole on the large clamp, so it can limit and assist the top block 2011a and the push ring 2011. Example 2

[0047] Reference Figure 5 , Figure 12 and Figure 13This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that, in order to clean the filter residue remaining on the filter cloth, the air duct of the back-blowing system is controlled to back-blow the cleaned filter candle 209 separately to ensure air volume and pressure and reduce waste. At the same time, the lifting and rotating scraper 605 and brush 606 are used to clean the outer wall of the filter cloth to improve the filter residue cleaning effect and efficiency.

[0048] Specifically, it also includes a slag removal assembly 600 disposed at one end inside the cleaning chamber 102. The slag removal assembly 600 includes a sliding frame 601 fixed to the inner wall of the cleaning chamber 102 and a lifting plate 602 slidably installed inside the sliding frame 601. A third electromagnetic block 601a is embedded in the top and bottom of the sliding frame 601. A third iron piece 602a is embedded in one end of the lifting plate 602. A notched ring plate 603 is fixed to the outer end of the lifting plate 602. A rotating semi-ring plate 604 is slidably installed at the bottom of the notched ring plate 603. Inclined blades 604a are evenly spaced fixed to the inner top of the rotating semi-ring plate 604. A scraper 605 is fixed to the outer bottom of the rotating semi-ring plate 604. A brush 606 is installed in the middle of the inner wall of the rotating semi-ring plate 604. The third electromagnetic block 601a and the third iron piece 602a are magnetically attracted to each other. In operation, the above setup may fail to remove the filter cake from the outer wall of the filter cloth due to the presence of highly viscous filter cake in the exhaust gas using a conventional backflushing system. In this case, the filter candle 209 with significant residue remaining on the filter cloth is replaced with the filter candle 209 in the cleaning chamber 102. Then, by controlling the solenoid valves on the three air passages of the branch pipe 205b, only the air passage leading to the filter candle 209 in the cleaning chamber 102 is opened. The backflushing system is then used again for backflushing. Since only the filter candle 209 in the cleaning chamber 102 area is backflushed, sufficient air volume and pressure are ensured, improving overall uniformity and increasing the efficiency and uniformity of backflushing energy utilization. This ensures effective slag removal while reducing unnecessary energy waste. Simultaneously, by sequentially energizing the third electromagnetic block 601a (either above or below), the third electromagnetic block 601a and the third iron plate... Under the magnetic attraction of 602a, the lifting plate 602 can move up and down, changing the height of the notched ring plate 603. When the notched ring plate 603 moves up and down along the outer wall of the filter candle 209, the gas blown out by the back-blowing system overflows from the filter candle 209 and blows onto the inclined blade 604a. After being subjected to force, the inclined blade 604a causes the rotating semi-ring plate 604 to rotate at the bottom of the notched ring plate 603. Therefore, the rotating semi-ring plate 604 will rotate synchronously when it moves up and down. Then, the scraper 605 at the bottom of the rotating semi-ring plate 604 and the brush 606 inside it will clean the outer wall of the filter cloth again. The scraper 605 is a certain distance from the filter cloth after it expands to avoid the scraper 605 damaging the filter cloth. The brush 606 is in contact with the filter cloth, protecting the filter cloth while cleaning, thereby improving the cleaning efficiency and effect of the filter residue and protecting the filter cloth.

[0049] Furthermore, by adjusting the current of the two third electromagnetic blocks 601a, the attraction force of the third iron plate 602a can be adjusted, thereby changing the height of the lifting plate 602. The notch of the notched ring plate 603 ensures that it is fitted onto the outer side of the filter candle 209. The rotating semi-ring plate 604 is a semi-circular design, which can rotate under the action of the track, while also preventing the rotating semi-ring plate 604 from detaching from the notched ring plate 603. There is a certain distance between the scraper 605 and the expanded filter cloth to avoid damaging the filter cloth. Example 3

[0050] Reference Figure 15 and Figure 16 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that, in order to quickly disassemble and assemble the filter candle 209, the locking block 701 can be moved under the elastic action of the spring, so as to realize or release the limiting effect between the locking block 701 and the double clamp 2010, thereby simplifying the filter cloth replacement process and shortening the downtime.

[0051] Specifically, it also includes an installation component 700 disposed inside the movable slot 208b. The installation component 700 includes a locking block 701 slidably mounted on the inner wall of the movable slot 208b and a second telescopic rod 702 mounted on the inner wall of the locking block 701. A third spring 702a is sleeved on the outer wall of the second telescopic rod 702. The other end of the second telescopic rod 702 is mounted on the slot wall of the movable slot 208b. The third spring 702a and the second telescopic rod 702 are both located between the locking block 701 and the slot wall of the movable slot 208b. In use, after adjusting the filter candle 209 (with the filter cloth to be replaced) into the cleaning chamber 102, open the inspection door. Then, push the pushing ring 2011 inward. The pushing ring 2011, under force, moves the top block 2011a along the sliding hole on the double clamp 2010. After the top block 2011a moves, it will squeeze the locking block 701 in the sliding hole on the double clamp 2010. The locking block 701, under force, squeezes the second telescopic rod 702 and the third spring 702a, and presses the locking block 701 into the moving groove 208b. At this time, the locking block 701 will release the limiting effect between the fixed arc plate 208 and the double clamp 2010, and then press the filter candle 209 towards the middle cylinder 203. 09. At this point, because the middle cylinder 203 is equipped with a docking component 500 (with a certain elastic distance), the end of the filter candle 209 installed on the upper trigone plate 205 or the lower trigone plate 206 will move out. After one end of the filter candle 209 moves out, tilt the filter candle 209 so that the other end moves out of the middle cylinder 203, thus completing the disassembly of the filter candle 209. When installing, first insert the filter candle 209 into the middle cylinder 203, and then push it vertically into the upper trigone plate 205 or the lower trigone plate 206. This allows the filter candle 209 to be quickly pulled out from the inspection door on the side of the filter without having to enter the tank or disassemble the top of the filter, greatly simplifying the filter cloth replacement process, shortening downtime, and improving safety.

[0052] Furthermore, since the inner arc of the fixed arc plate 208 is greater than 180 degrees, the double clamp 2010 cannot move to release the limiting effect after it is inserted into the bottom of the fixed arc plate 208. Therefore, the filter candle 209 cannot be removed by moving. The position of the clamp block 701 is adjusted by the elasticity of the third spring 702a.

[0053] Additionally, it should be noted that components not described in detail in this article are existing technologies.

[0054] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0055] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0056] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A candle filter for waste gas filtration, characterized in that: include, The filter body (100) has a top cover (101) sealed on its top. A cleaning chamber (102) is provided at the front end of the filter body (100). A treatment chamber (103) is provided on both sides of the cleaning chamber (102). The three-sealing plate (200) has a top plate (201) fixedly mounted on its top. The outer walls of the three-sealing plate (200) and the top plate (201) are both fixedly mounted on the inner wall of the filter body (100). Rotating cavities (202) are opened at the top and bottom of the interior of the three-sealing plate (200). Storage grooves (202a) are provided on the inner walls of the rotating cavities (202) around their perimeter. A middle cylinder (203) is fixedly mounted on the three-sealing plate (200) at the positions corresponding to the three chamber directions. A drive groove (204) is provided at one edge of the interior of the three-sealing plate (200). The sealing assembly (300) includes a sealing plate (301) slidably mounted on the inner wall of the storage groove (202a) and a first telescopic rod (303) mounted on both ends of the inner wall of the sealing plate (301). A first iron piece (301a) is embedded in the center of the inner wall of the sealing plate (301). A first electromagnetic block (302) is provided at the outer end of the first iron piece (301a). A first spring (303a) is sleeved on the outer wall of the first telescopic rod (303). The first electromagnetic block (302) and the first telescopic rod (303) are both mounted on the inner wall of the storage groove (202a). The first electromagnetic block (302) and the first iron piece (301a) are magnetically attracted to each other. The drive assembly (400) includes a U-shaped frame (401) fixed to the inner wall of the drive groove (204) and a motor (402) installed inside the U-shaped frame (401), wherein a drive gear (402a) is mounted on the output shaft of the motor (402); and, The docking assembly (500) includes a fixing ring (501) fixed in the middle of the inner wall of the middle cylinder (203) and a double-headed telescopic rod (502) evenly spaced inside the fixing ring (501) along the circumferential direction of the inner wall of the middle cylinder (203). Both ends of the double-headed telescopic rod (502) are equipped with docking platform cylinders (503). A second spring (502a) is sleeved on the upper and lower sides of the outer wall of the double-headed telescopic rod (502). The second spring (502a) is located between the fixed ring (501) and the adjacent docking platform cylinder (503).

2. A candle filter for waste gas filtration as described in claim 1, characterized in that: The cleaning chamber (102) and the two processing chambers (103) are each provided with an external pipe (104). The upper trident plate (205) and the lower trident plate (206) are respectively rotatably installed inside the upper and lower adjacent rotating chambers (202). A hollow shaft (205a) is provided at the top center of the upper trident plate (205), and a bottom shaft (206a) is provided at the bottom center of the lower trident plate (206). A branch pipe (205b) is provided inside the upper trident plate (205).

3. A candle filter for waste gas filtration as described in claim 2, characterized in that: A cylinder (205c) is fixedly provided at the middle of the opposite end face of the upper trident plate (205) and the lower trident plate (206), and a driven pulley (205d) is sleeved on the outer wall of the hollow shaft (205a) and the bottom shaft (206a). The hollow shaft (205a) and the branch pipe (205b) are connected in a continuous manner. The top end of the hollow shaft (205a) passes through the top bearing of the three sealing plate (200) and is connected to the discharge pipe. The bottom end of the bottom shaft (206a) and the cylinder (205c) are respectively rotatably installed on the inner wall of the adjacent rotating cavity (202).

4. A candle filter for waste gas filtration as described in claim 3, characterized in that: The outer walls of the upper triangular plate (205), the lower triangular plate (206), and the cylinder (205c) are all uniformly spaced with partitions (207) along the axial direction of the hollow shaft (205a). The center of each of the three side walls of the partition (207) is provided with a sealing groove (207a). The outer surfaces of the opposite end faces of the upper triangular plate (205) and the lower triangular plate (206) are all fixed with a fixed arc plate (208). The outer surface of the fixed arc plate (208) is provided with a groove (208a).

5. A candle filter for waste gas filtration as described in claim 4, characterized in that: The fixed arc plate (208) has a moving groove (208b) at both the front and rear ends of one side wall. Filter candles (209) are installed on the outer surfaces of the opposite end faces of the upper trident plate (205) and the lower trident plate (206). Double clamps (2010) are installed on the top of the outer wall of the filter candle (209) by bolts. A pushing ring (2011) is provided above one side wall of the double clamp (2010). Top blocks (2011a) are fixed at both ends of the pushing ring (2011). The partition (207) is correspondingly and sealingly installed in the adjacent rotating cavity (202), one side wall of the double clamp (2010) is clamped in the groove (208a), and the top block (2011a) is slidably installed in the sliding hole on the double clamp (2010).

6. A candle filter for waste gas filtration as described in claim 3, characterized in that: One side of the active gear disk (402a) is engaged with a driven gear disk (403a). A moving shaft (403) is fixed in the middle of the inner wall of the driven gear disk (403a). A sliding groove (401a) is provided on the upper part of the inner wall of the U-shaped frame (401). A second electromagnetic block (401b) is embedded in the middle of the groove walls on both sides of the sliding groove (401a). A spline shaft (403b) is fixed in the middle of the top and bottom ends of the moving shaft (403). The upper part of the outer wall of the moving shaft (403) is sleeved in the bearing on the moving plate (404).

7. A candle filter for waste gas filtration as described in claim 6, characterized in that: One end of the movable plate (404) is slidably installed in the slide groove (401a), and a drive shaft (405) is provided above and below the movable shaft (403). The outer wall end of the drive shaft (405) is fitted with a drive pulley (405b). The movable plate (404) has a second iron plate (404a) embedded in one end, and the second iron plate (404a) and the second electromagnetic block (401b) are magnetically attracted to each other. A spline groove (405a) is provided at the center of one end face of the transmission shaft (405), and the spline shaft (403b) is slidably inserted into the spline groove (405a). The driving pulley (405b) is connected to the outer wall of the adjacent driven pulley (205d) by a synchronous belt drive.

8. A candle filter for waste gas filtration as described in claim 1, characterized in that: It also includes a slag removal assembly (600) disposed at one end inside the cleaning chamber (102). The slag removal assembly (600) includes a sliding frame (601) fixed on the inner wall of the cleaning chamber (102) and a lifting plate (602) slidably installed inside the sliding frame (601). A third electromagnetic block (601a) is embedded at both the top and bottom of the sliding frame (601), and a third iron plate (602a) is embedded at one end of the lifting plate (602).

9. A candle filter for waste gas filtration as described in claim 8, characterized in that: The outer end of the lifting plate (602) is fixedly provided with a notched ring plate (603), and a rotating semi-ring plate (604) is slidably installed at the bottom of the notched ring plate (603). Inclined blades (604a) are evenly spaced fixed on the inner side of the top of the rotating semi-ring plate (604), and a scraper (605) is fixed on the outer side of the bottom of the rotating semi-ring plate (604). A brush (606) is installed in the middle of the inner wall of the rotating semi-ring plate (604). The third electromagnetic block (601a) and the third iron sheet (602a) are magnetically attracted to each other.

10. A candle filter for waste gas filtration as described in claim 5, characterized in that: It also includes an installation assembly (700) disposed inside the movable slot (208b), the installation assembly (700) including a locking block (701) slidably mounted on the inner wall of the movable slot (208b) and a second telescopic rod (702) mounted on the inner wall of the locking block (701), and a third spring (702a) sleeved on the outer wall of the second telescopic rod (702). The other end of the second telescopic rod (702) is installed on the wall of the moving groove (208b), and the third spring (702a) and the second telescopic rod (702) are both located between the locking block (701) and the wall of the moving groove (208b).

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