A candle filter for exhaust gas filtration treatment

Abstract

The application relates to the technical field of waste gas treatment, in particular to a candle filter for waste gas filtering treatment, which comprises a filter body, a top cover is sealingly installed at the top of the filter body, and treatment cavities are arranged at the two sides of the cleaning cavity; three sealing plates, a top plate is fixedly arranged at the top of the three sealing plates; a sealing assembly, which comprises a sealing plate slidingly installed on the inner wall of a receiving groove and first telescopic rods installed at the two ends of the inner wall of the sealing plate; a driving assembly, which comprises a U-shaped frame fixedly arranged on the inner wall of a driving groove and a motor installed in the U-shaped frame; and a butt joint assembly, which comprises a fixing ring fixedly arranged at the middle part of the inner wall of a middle cylinder and double-head telescopic rods uniformly and intervally installed in the fixing ring; the candle filter for waste gas filtering treatment can shorten the downtime, continuously filter out the waste gas, control the back blowing energy, reduce the waste, and quickly replace the filter cloth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, and particularly relates to a candle filter for waste gas filtration treatment. BACKGROUND

[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 external discharge to meet the national standard for external discharge of waste gas. 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 and disinfection purification.

[0003] A candle filter is a deep-layer and regenerable filter cake layer filter, which is widely used in chemical industry, pharmaceutical industry, food and beverage industry, water treatment industry, mining industry, metallurgy industry and the like. It is particularly suitable for treating suspensions with high solid content, high viscosity and difficult filtration, and can obtain very clear filtrate.

[0004] The candle filter can also be used for waste gas filtration treatment under certain conditions, but its application scenarios are relatively limited, and it usually needs to be specially designed and optimized according to the characteristics of waste gas. It is not the mainstream equipment for waste gas treatment (such as bag-type dust collector, electric dust collector, wet scrubbing tower, etc.), but it has unique advantages in some special needs, such as high-temperature and corrosive gas, high-value dust recovery, high-precision filtration demand, explosion-proof and high-pressure environment, etc. For example, the existing public document CN105056596B-A filter applied to liquid medium, and the existing public document CN119386531A-A candle filter disclose a candle filter.

[0005] Although the existing public candle filter for waste gas filtration treatment can filter waste gas, it still has some deficiencies in actual use. First, the existing candle filter for waste gas filtration treatment is designed and installed in the filter with multiple filter candles and filter candle frames integrated, the dust in the waste gas has strong adhesion, so that the back flushing cannot effectively strip the filter cake, and frequent manual cleaning is required, thereby affecting the treatment efficiency of the waste gas. Second, in the process of back flushing and stripping the filter cake, the filter cake may not be completely stripped due to its strong adhesion, the residual filter cake will reduce the effective area and efficiency of the next filtration, and the high-pressure back flushing has strong back flushing force on the filter candles close to the gas source, but weak back flushing force on the filter candles far away from the gas source, so that the energy of each filter candle is uneven, resulting in inconsistent unloading effect. Finally, when the filter cloth needs to be replaced, the entire filter candle frame needs to be lifted out by opening the top of the tank body, which is complicated, labor-intensive, has long downtime, and has safety hazards. Therefore, it is necessary to improve the existing technology to solve the above technical problems. SUMMARY

[0006] This section is intended to introduce some aspects of the embodiments of the present application, which are further described in the following. This section is not intended to limit the scope or the scope of the embodiments in any way.

[0007] In view of the above-mentioned existing candle filter for waste gas filtration treatment due to the strong adhesion of dust in the waste gas, the back flushing cannot effectively strip the filter cake, and frequent shutdown manual cleaning is required, which affects the treatment efficiency of waste gas.

[0008] To solve the above technical problems, the present application provides the following technical scheme: a candle filter for waste gas filtration treatment, comprising a filter body, a top cover is sealingly installed at the top of the filter body, a cleaning cavity is arranged at the front end of the inside of the filter body, and a treatment cavity is arranged at the two sides adjacent to the cleaning cavity; a three-seal plate, a top plate is fixedly arranged at the top of the three-seal plate, the outer walls of the three-seal plate and the top plate are fixedly arranged on the inner wall of the filter body, rotating cavities are arranged at the upper and lower parts of the inside of the three-seal plate, receiving grooves are arranged on the inner walls of the rotating cavities, middle cylinders are fixedly arranged on the three-seal plate at positions corresponding to the directions of the three cavities, and a driving groove is arranged at the inside of one side edge of the three-seal plate; a sealing assembly, comprising a sealing plate slidingly installed on the inner wall of the receiving groove and a first telescopic rod installed on the inner wall of the sealing plate at both ends, a first iron sheet is embedded at the center position of the inner wall of the sealing plate, a first electromagnetic block is arranged at the outer end of the first iron sheet, and a first spring is sleeved on the outer wall of the first telescopic rod, wherein the first electromagnetic block and the first telescopic rod are installed on the inner wall of the receiving groove, and the first electromagnetic block is magnetically attracted to the first iron sheet; a driving assembly, comprising a U-shaped frame fixedly arranged on the inner wall of the driving groove and a motor installed in the inside of the U-shaped frame, and a driving gear is installed on the output shaft of the motor; and a docking assembly, comprising a fixing ring fixedly arranged at the middle part of the inner wall of the middle cylinder and double-headed telescopic rods uniformly and spaced apart along the circumferential direction of the inner wall of the middle cylinder and installed in the inside of the fixing ring, docking barrels are installed at both ends of the double-headed telescopic rods, and second springs are sleeved on the upper and lower parts of the outer wall of the double-headed telescopic rods; wherein the second spring is located between the fixing ring and the adjacent docking barrel.

[0009] As a preferred scheme of the candle filter for waste gas filtration treatment, wherein: the outside of the cleaning cavity and the two treatment cavities is provided with an external pipe, an upper three-pronged plate and a lower three-pronged plate are rotatably installed in the inside of the upper and lower adjacent rotating cavities respectively, a hollow shaft is arranged at the top center position of the upper three-pronged plate, a bottom shaft is arranged at the bottom center position of the lower three-pronged plate, and a branch pipe is arranged in the inside of the upper three-pronged plate.

[0010] As a kind of preferred scheme of the application for the candle filter for waste gas filtration treatment, wherein: the middle part of the opposite end surface of upper three-pronged plate and lower three-pronged plate is fixed with cylinder, the outer wall of hollow shaft and bottom shaft is sleeved with driven pulley;Wherein, hollow shaft and branch pipe are connected through, the top end of hollow shaft penetrates the top bearing of three sealing plate and is connected with discharge pipe, the bottom end of bottom shaft and cylinder are respectively rotatably installed on the inner wall of adjacent rotating cavity.

[0011] As a kind of preferred scheme of the application for the candle filter for waste gas filtration treatment, wherein: the outer wall of upper three-pronged plate, lower three-pronged plate and cylinder is uniformly spaced and fixed along the axis direction of hollow shaft, the three side walls of partition plate are provided with sealing groove at the center position, the outer part of upper three-pronged plate and lower three-pronged plate is fixed with fixed arc plate, and the outer part of fixed arc plate is provided with embedding groove.

[0012] As a kind of preferred scheme of the application for the candle filter for waste gas filtration treatment, wherein: the front and rear ends of one side wall of fixed arc plate are provided with moving groove, the outer part of upper three-pronged plate and lower three-pronged plate is installed with filter candle, the outer wall top of filter candle is installed with double clamp through bolt, the upper side of one side wall of double clamp is provided with push ring, and the two ends of push ring are fixed with top block;Wherein, partition plate is sealingly installed in adjacent rotating cavity, one side wall of double clamp is clamped in embedding groove, and top block is slidingly installed in sliding hole on double clamp.

[0013] As a kind of preferred scheme of the application for the candle filter for waste gas filtration treatment, wherein: the side of driving gear disc is engaged with driven gear disc, the inner wall of driven gear disc is fixed with moving shaft at the middle part, the upper side of inner wall of U-shaped frame is provided with sliding groove, the middle part of two side groove walls of sliding groove is embedded with second electromagnetic block, the top end and the middle part of bottom end of moving shaft are fixed with spline shaft, and the outer wall of moving shaft is sleeved in bearing on moving plate.

[0014] As a kind of preferred scheme of the application for the candle filter for waste gas filtration treatment, wherein: one end of moving plate is slidingly installed in sliding groove, the upper side and the lower side of moving shaft are provided with transmission shaft, and the outer wall end of transmission shaft is sleeved with driving pulley;Wherein, one end of the inside of moving plate is embedded with second iron sheet, the second iron sheet and the second electromagnetic block are magnetically attracted, the center position of one side end surface of transmission shaft is provided with spline groove, the spline shaft is slidingly inserted in the inside of spline groove, and the outer wall of driving pulley and adjacent driven pulley are drivingly connected through synchronous belt.

[0015] The beneficial effects of the present application are: by setting the sealing assembly, the driving assembly and the docking assembly, since the filter body is divided into three partitions, the filter candles in the filter body are partitioned, so that the filter candles in the cleaning cavity are regenerated while the other areas continue to work, and the damaged filter candles in the cleaning cavity can be disassembled and replaced without stopping, reducing the downtime of the equipment, improving the utilization rate of the equipment and the waste gas treatment efficiency.

[0016] In view of the existing candle filter for waste gas filtration treatment, in the process of back flushing and stripping filter cake, high pressure back flushing has strong back flushing force on the filter candles close to the gas source, and weak back flushing force on the filter candles far away, the energy of each filter candle is uneven, leading to inconsistent unloading effect, therefore, a further improvement of the candle filter for waste gas filtration treatment is proposed.

[0017] As a preferred scheme of the candle filter for waste gas filtration treatment, the deslagging assembly is further arranged at one end inside the cleaning cavity, the deslagging assembly comprises a sliding frame fixed on the inner wall of the cleaning cavity and a lifting plate slidingly installed inside the sliding frame, the inner top end and the inner bottom end of the sliding frame are embedded with third electromagnetic blocks, and the inner one end of the lifting plate is embedded with a third iron sheet.

[0018] As a preferred scheme of the candle filter for waste gas filtration treatment, the outer end of the lifting plate is fixed with a notched ring plate, the bottom of the notched ring plate is slidingly installed with a rotating half ring plate, the top inner side of the rotating half ring plate is uniformly and interval fixed with inclined leaves, the bottom outer side of the rotating half ring plate is fixed with a scraper, and the inner wall of the rotating half ring plate is installed with a brush; and the third electromagnetic blocks and the third iron sheet are magnetically attracted.

[0019] Another beneficial effect of the present application is: by setting the deslagging assembly, firstly, only the filter candles in the cleaning cavity region are back flushed, which can ensure sufficient gas volume and pressure, improve overall uniformity, improve the utilization efficiency and uniformity of back flushing energy, reduce unnecessary energy waste while ensuring the unloading effect, and then under the action of the gas overflowing from the filter candles, the lifting rotating half ring plate is synchronously rotated, the scraper and the brush are used to clean the outer wall of the filter cloth again, the cleaning efficiency and effect of the filter residue are improved, and the filter cloth is protected.

[0020] In view of the existing candle filter for waste gas filtration treatment, when the filter cloth needs to be replaced, the entire filter candle frame needs to be lifted out by opening the top of the tank, which is complicated, labor-intensive, has long downtime and has safety hazards, therefore, a further improvement of the candle filter for waste gas filtration treatment is proposed.

[0021] As a preferred scheme of the candle filter for waste gas filtering treatment, the application further comprises a mounting assembly arranged in the inner part of the moving groove, the mounting assembly comprises a clamping block slidingly arranged on the inner wall of the moving groove and a second telescopic rod arranged on the inner wall of the clamping block, and a third spring is sleeved on the outer wall of the second telescopic rod; wherein the other end of the second telescopic rod is arranged on the groove wall of the moving groove, and the third spring and the second telescopic rod are located between the clamping block and the groove wall of the moving groove.

[0022] Another beneficial effect of the application is that by arranging the mounting assembly, the position of the clamping block is adjusted under the elastic action of the third spring, the limiting effect between the clamping block and the sliding hole of the clamp is realized or released, the filter candle can be quickly pulled out from the maintenance door on the side of the filter, it is not necessary to enter the tank body or disassemble the top of the filter, the filter cloth replacement process is greatly simplified, the downtime is shortened, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0024] Figure 1 It is a whole structure schematic view of the candle filter for waste gas filtering treatment in the application.

[0025] Figure 2 It is a horizontal sectional view of the candle filter for waste gas filtering treatment in the application.

[0026] Figure 3 It is a whole structure schematic view of the candle filter for waste gas filtering treatment in the application. Figure 2 Structure schematic view of the three sealing plates in the structure.

[0027] Figure 4 It is a whole structure schematic view of the candle filter for waste gas filtering treatment in the application. Figure 3 Disassembly schematic view of the three sealing plates in the structure.

[0028] Figure 5 It is a whole structure schematic view of the candle filter for waste gas filtering treatment in the application. Figure 4 Vertical sectional view schematic view of the three sealing plates in the structure.

[0029] Figure 6 It is a whole structure schematic view of the candle filter for waste gas filtering treatment in the application. Figure 4 Disassembly schematic view of the upper three-pronged plate, the lower three-pronged plate and the filter candle in the structure.

[0030] Figure 7 It is a whole structure schematic view of the candle filter for waste gas filtering treatment in the application. Figure 6 Horizontal sectional view schematic view of the upper three-pronged plate in the structure.

[0031] Figure 8 It is a whole structure schematic view of the candle filter for waste gas filtering treatment in the application.Figure 5 Structure diagram of sealing assembly in structure.

[0032] Figure 9 For the invention Figure 4 Structure diagram of upper three-pronged plate, lower three-pronged plate and driving assembly in structure.

[0033] Figure 10 For the invention Figure 9 Disassembly diagram of driving assembly in structure.

[0034] Figure 11 For the invention Figure 4 Disassembly diagram of middle cylinder and docking assembly in structure.

[0035] Figure 12 For the invention Figure 5 Structure diagram of slag removing assembly in structure.

[0036] Figure 13 For the invention Figure 12 Disassembly diagram of lifting plate in structure.

[0037] Figure 14 For the invention Figure 6 Disassembly diagram of fixed arc plate and filter candle in structure.

[0038] Figure 15 For the invention Figure 14 Horizontal section diagram of fixed arc plate in structure.

[0039] Figure 16 For the invention Figure 15 Structure diagram of mounting assembly in structure.

[0040] In the drawings, the components represented by each reference numeral are listed as follows:

[0041] 100, filter body; 101, top cover; 102, cleaning cavity; 103, processing cavity; 104, external tube; 200, three-sealing plate; 201, top plate; 202, rotating cavity; 202a, receiving groove; 203, middle tube; 204, driving groove; 205, upper three-pronged plate; 205a, hollow shaft; 205b, branch tube; 205c, cylinder; 205d, driven pulley; 206, lower three-pronged plate; 206a, bottom shaft; 207, partition plate; 207a, sealing groove; 208, fixed arc plate; 208a, embedding groove; 208b, moving groove; 209, filter candle; 2010, double clamp; 2011, pushing 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, driving assembly; 401, U-shaped frame; 401a, sliding groove; 401b, second electromagnetic block; 402, motor; 402a, driving gear disc; 403, moving shaft; 403a, driven gear disc; 403b, spline shaft; 404, moving plate; 404a, second iron sheet; 405, transmission shaft; 405a, spline groove; 405b, driving pulley; 500, butt joint assembly; 501, fixed ring; 502, double-headed telescopic rod; 502a, second spring; 503, butt joint table 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 half ring plate; 604a, inclined blade; 605, scraper; 606, brush; 700, mounting assembly; 701, clamping block; 702, second telescopic rod; 702a, third spring. DETAILED DESCRIPTION

[0042] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0043] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0044] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments.

[0045] Thirdly, the present application is described in detail in combination with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in actual production. Embodiment 1

[0046] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , the first embodiment of the present application provides a candle filter for exhaust gas filtration treatment, three partitions are arranged in the candle filter for exhaust gas filtration treatment, other areas can continue to work when the filter candle 209 in the cleaning cavity 102 is regenerated, and the filter candle 209 and filter cloth can be replaced without stopping, reducing the downtime of the equipment and improving the efficiency of exhaust gas treatment.

[0047] Specifically, the filter body 100, the top of the filter body 100 is sealingly installed with a top cover 101, the inside of the front end of the filter body 100 is provided with a cleaning cavity 102, both sides of the cleaning cavity 102 are provided with a treatment cavity 103, the outside of the cleaning cavity 102 and the two treatment cavities 103 are provided with an external pipe 104; three sealing plates 200, the top of the three sealing plates 200 is fixedly provided with a top plate 201, the outer walls of the three sealing plates 200 and the top plate 201 are fixedly arranged on the inner wall of the filter body 100, the inside of the three sealing plates 200 is provided with a rotating cavity 202 above and below, the inner wall of the rotating cavity 202 is provided with a receiving groove 202a around, the three sealing plates 200 are provided with a middle cylinder 203 corresponding to the positions of the three cavities, and the inside of the three sealing plates 200 is provided with a driving groove 204 at one side edge; a sealing assembly 300, comprising a sealing plate 301 slidingly installed on the inner wall of the receiving groove 202a and a first telescopic rod 303 installed on the inner wall of the sealing plate 301; a driving assembly 400, comprising a U-shaped frame 401 fixedly arranged on the inner wall of the driving groove 204 and a motor 402 installed in the inside of the U-shaped frame 401, a driving gear 402a is installed on the output shaft of the motor 402, a driven gear 403a is engaged on one side of the driving gear 402a, and a moving shaft 403 is fixedly arranged in the inner wall of the driven gear 403a; and a docking assembly 500, comprising a fixed ring 501 fixedly arranged in the middle of the inner wall of the middle cylinder 203 and double-headed telescopic rods 502 uniformly and spaced apart along the circumferential direction of the inner wall of the middle cylinder 203.

[0048] Detailed reference Figure 8 , Figure 9、 Figure 10 and Figure 11 The inner wall center position of the sealing plate 301 is embedded with a first iron sheet 301a, the outer end of the first iron sheet 301a is provided with a first electromagnetic block 302, the outer wall of the first telescopic rod 303 is sleeved with a first spring 303a, the first electromagnetic block 302 and the first telescopic rod 303 are both installed on the inner wall of the accommodating groove 202a, and the first electromagnetic block 302 is magnetically attracted to the first iron sheet 301a; The inner wall of the U-shaped frame 401 is provided with a sliding groove 401a, the middle part of the groove wall of the sliding groove 401a is embedded with a second electromagnetic block 401b, the top end and the middle part of the bottom end of the moving shaft 403 are fixedly provided with a spline shaft 403b, and 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 slidingly installed in the sliding groove 401a, the upper and lower parts of the moving shaft 403 are provided with a transmission shaft 405, and the outer wall end of the transmission shaft 405 is sleeved with a driving pulley 405b; wherein, the inner end of the moving plate 404 is embedded with a second iron sheet 404a, the second iron sheet 404a is magnetically attracted to the second electromagnetic block 401b, the center position of the side end face of the transmission shaft 405 is provided with a spline groove 405a, the spline shaft 403b is slidingly inserted into the spline groove 405a, and the driving pulley 405b and the outer wall of the adjacent driven pulley 205d are connected through a synchronous belt transmission; The two ends of the double-head telescopic rod 502 are both provided with a butt joint table cylinder 503, and the outer wall of the double-head telescopic rod 502 is sleeved with a second spring 502a above and below; wherein, the second spring 502a is located between the fixed ring 501 and the adjacent butt joint table cylinder 503;

[0049] In use, the interior of the filter body 100 is divided into a cleaning cavity 102 and two treatment cavities 103 by the three-seal plate 200. During initial use, the exhaust gas to be treated is introduced into each cavity through the three external pipes 104. The exhaust gas enters the interior through the six filter candles 209 and the filter cloth outside the filter candles. The dust and metal dust contained in the exhaust gas are filtered out by the filter candles 209 and the filter cloth. As the exhaust gas is continuously filtered, the filtered exhaust gas is discharged from the middle of the filter candles 209 to the outside through the branch pipe 205b, the hollow shaft 205a, and the discharge pipe. After treating the exhaust gas for a period of time, strong adhesive filter cake is attached to the outer wall of the filter candles 209 and the filter cloth. After the strong adhesive filter cake is blown off by the deslagging assembly 600 and the backflushing system, residual filter residue may be attached to the filter cloth. At the same time, the filter cloth may be damaged after long-term use, affecting the filtering effect. Therefore, in order to ensure the filtering efficiency, the filter candles 209 need to be removed and the filter cloth on the outer wall of the filter candles 209 needs to be replaced. At this time, since the interior of the filter body 100 is divided into the cleaning cavity 102 and the two treatment cavities 103 by the three-seal plate 200, each cavity is provided with filter candles 209 that are stacked and docked in an up-down manner (hereinafter, the six filter candles 209 are replaced by a / b / c / d / e / f, wherein a and d are a group of filter candles 209 that are symmetrically arranged in an up-down manner, b and e are a group of filter candles 209 that are symmetrically arranged in an up-down manner, and c and f are a group of filter candles 209 that are symmetrically arranged in an up-down manner). When the filter cloth on the outer wall of the filter candles 209 in two cavities is damaged (i.e., a and d, a and e, a and f, or b and f are damaged in the same group or in different groups), the plurality of first electromagnetic blocks 302 inside the three-seal plate 200 are powered on. After the first electromagnetic blocks 302 are powered on, the first electromagnetic blocks 302 generate a magnetic force to attract the first iron sheet 301a on the corresponding sealing plate 301, causing the sealing plate 301 to slide into the receiving slot 202a under tension and pressing the first extension rod 303 and the first spring 303a. At this time, the sealing plate 301 moves out of the sealing groove 207a on the adjacent partition plate 207, thereby releasing the limiting of the partition plate 207 and the sealing effect of the connection. In the case of damage in the same group, the motor 402 is started. The output shaft of the motor 402 rotates with the driving gear plate 402a. The driving gear plate 402a is engaged with the driven gear plate 403a. The rotation of the driving gear plate 402a synchronously rotates the driven gear plate 403a and the moving shaft 403 inside the driven gear plate 403a (at this time, the driving gear plate 402a is in the middle of the driven gear plate 403a, and the height of the driven gear plate 403a is not less than the height of the three driving gear plates 402a). The rotation of the moving shaft 403 rotates the upper and lower adjacent transmission shafts 405 and the driving pulleys 405b on the outer wall of the transmission shafts 405 under the action of the spline shaft 403b and the spline groove 405a. 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 rotates the driven pulley 205d under the action of the synchronous belt, thereby driving the hollow shaft 205a and the bottom shaft 206a to rotate, so that the upper three-prong plate 205 and the lower three-prong plate 206 can rotate,The motor 402 is controlled by an external controller, so that the motor 402 can drive the upper and lower three-prong plates 205 and 206 to rotate by an angle of one chamber each time, thereby adjusting the filter candles 209 with damaged filter cloth to the cleaning cavity 102, and finally removing the filter candles 209 through the maintenance door and replacing the filter cloth. This is the way to replace the upper and lower filter candles 209. In the case of damage to different groups, the upper or lower second electromagnetic block 401b needs to be energized first, and the height of the moving plate 404, the moving shaft 403 and the driven gear disc 403a is adjusted by the magnetic force between the second electromagnetic block 401b and the second iron sheet 404a, so that the spline shaft 403b at the top or bottom of the moving shaft 403 can move out of the corresponding spline groove 405a, so that the moving shaft 403 is separated from the upper or lower transmission shaft 405, and then the motor 402 can rotate the upper or lower three-prong plate 205 or 206 separately, so as to adjust the upper or lower filter candles 209 separately, so that the filter candles 209 with damaged filter cloth on the upper and lower sides can be in the cleaning cavity 102 at the same time, waiting for subsequent disassembly and processing. When the upper and lower filter candles 209 are separated or connected with the upper and lower three-prong plates 205 and 206, the upper and lower filter candles 209 are connected with the middle cylinder 203, and the end of the abutment cylinder 503 is moved inward and extrudes the double-headed telescopic rod 502 and the second spring 502a under stress, so that the filter candles 209 can be moved out or connected to the upper and lower sides of the middle cylinder 203. When connected, the abutment cylinder 503 will automatically pop into the inside of the filter candle 209 under the elastic action of the second spring 502a. Similarly, after the rotating position of the partition plate 207 is determined, the first electromagnetic block 302 is stopped energizing. At this time, the sealing plate 301 will automatically pop into the sealing groove 207a under the elastic action of the first spring 303a, so as to realize the sealing and connection of the connection, so as to divide the filter body 100 into three zones, realize the zoning of the filter candles 209 in the filter body 100, and allow the filter candles 209 in some areas to regenerate while the other areas continue to work. At the same time, the filter candles 209 with damaged filter cloth in the cleaning cavity 102 can be disassembled and replaced without stopping the machine, reducing the downtime of the equipment and improving the utilization rate of the equipment and the efficiency of waste gas treatment.

[0050] Further, the filter body 100 is divided into a cleaning cavity 102 and two processing cavities 103 by three sealing plates 200, three outer pipes 104 are arranged to pass exhaust gas into the three partitions respectively, the driving groove 204 is U-shaped and tilted by 90 degrees, arranged at the outer end of one plate surface of the three sealing plates 200, the driving tooth disc 402a and the driven tooth disc 403a are engaged to achieve the purpose of transmission, wherein the height of the driven tooth disc 403a is not less than the height of the three driving tooth discs 402a, the two ends of the double-headed telescopic rod 502 can be telescopically moved, the outer wall of the sealing plate 301 is provided with a sealing gasket, when the sealing plate 301 is inserted into the sealing groove 207a, the sealing gasket can play a sealing role, the moving shaft 403 and the transmission shaft 405 are separated and connected in transmission through the spline shaft 403b and the spline groove 405a, the magnetic force between the two second iron sheets 404a is controlled by changing the current size of the two second electromagnetic blocks 401b, thereby changing the height of the driven tooth disc 403a, the outer end of the docking table cylinder 503 is provided with a trapezoidal inclined surface, so that the trapezoidal inclined surface can be moved into or out of the inside of the filter candle 209, the inclined surface outer wall of the docking table cylinder 503 is provided with a sealing ring, which plays a sealing role when the docking table cylinder 503 is docked with the filter candle 209.

[0051] Detailed Figure 4 , Figure 6 , Figure 7 , Figure 9 , Figure 14 and Figure 15As shown, the upper and lower adjacent rotating cavities 202 are respectively provided with an upper three-pronged plate 205 and a lower three-pronged plate 206, the top center of the upper three-pronged plate 205 is provided with a hollow shaft 205a, the bottom center of the lower three-pronged plate 206 is provided with a bottom shaft 206a, the inside of the upper three-pronged plate 205 is provided with a branch pipe 205b, the middle of the opposite end surface of the upper three-pronged plate 205 and the lower three-pronged plate 206 is fixedly provided with a cylinder 205c, the outer wall of the hollow shaft 205a and the bottom shaft 206a is sleeved with a driven pulley 205d, the hollow shaft 205a and the branch pipe 205b are connected through, the top end of the hollow shaft 205a penetrates the top bearing of the three-seal plate 200 and is connected with 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, the outer wall of the upper three-pronged plate 205, the lower three-pronged plate 206 and the cylinder 205c is uniformly and spacedly fixed with a partition plate 207 along the axis direction of the hollow shaft 205a, the three side walls of the partition plate 207 are provided with a sealing groove 207a at the center position, the outer part of the opposite end surface of the upper three-pronged plate 205 and the lower three-pronged plate 206 is fixedly provided with a fixed arc plate 208, the outer part of the fixed arc plate 208 is provided with an embedding groove 208a, the front and rear ends of the side wall of the fixed arc plate 208 are provided with a moving groove 208b, the outer part of the opposite end surface of the upper three-pronged plate 205 and the lower three-pronged plate 206 is installed with a filter candle 209, the outer wall top of the filter candle 209 is installed with a double clamp 2010 through bolts, the upper side wall of the double clamp 2010 is provided with a pushing ring 2011, the two ends of the pushing ring 2011 are fixedly provided with a top block 2011a, the partition plate 207 is correspondingly and sealingly installed in the adjacent rotating cavity 202, the side wall of the double clamp 2010 is clamped in the embedding groove 208a, and the top block 2011a is slidingly installed in the sliding hole on the double clamp 2010.

[0052] Further, the upper three-pronged plate 205 and the lower three-pronged plate 206 are symmetrically arranged, the branch pipe 205b is provided with three, each air passage is provided with an electromagnetic valve, the partition plate 207 is provided with two, which are respectively installed in the upper and lower rotating cavities 202, the arc of the fixed arc plate 208 exceeds 180 degrees, which avoids the filter candle 209 from being parallelly moved out of the inside of the fixed arc plate 208, the double clamp 2010 is provided with two clamps with different sizes, the heights of the two are different, the small clamp can be clamped into the embedding groove 208a on the fixed arc plate 208, and the top block 2011a is slidingly installed in the sliding hole on the large clamp, so that the top block 2011a and the pushing ring 2011 can be limited and assisted. Example 2

[0053] Reference Figure 5 , Figure 12 and Figure 13For the second embodiment of the application, which is based on the previous embodiment, the difference is that, in order to clean the filter cake remaining on the filter cloth, the air duct of the back blowing system is controlled to back blow the filter candle 209 to be cleaned alone, so as to ensure the air volume and pressure and reduce waste, and at the same time, the lifting and rotating scraper 605 and the brush 606 are used to clean the outer wall of the filter cloth, so as to improve the cleaning effect and efficiency of the filter cake.

[0054] Specifically, the slag removal assembly 600 is arranged at one end inside the cleaning cavity 102, and the slag removal assembly 600 comprises a sliding frame 601 fixedly arranged on the inner wall of the cleaning cavity 102 and a lifting plate 602 slidingly arranged inside the sliding frame 601. The inner top end and the inner bottom end of the sliding frame 601 are embedded with third electromagnetic blocks 601a, and one end inside the lifting plate 602 is embedded with a third iron sheet 602a. The outer end of the lifting plate 602 is fixedly arranged with a notched ring plate 603, the bottom of the notched ring plate 603 is slidingly arranged with a rotating half ring plate 604, the inner top side of the rotating half ring plate 604 is uniformly and intervaliy fixedly arranged with inclined leaves 604a, the outer bottom side of the rotating half ring plate 604 is fixedly arranged with a scraper 605, and the inner wall of the rotating half ring plate 604 is arranged with a brush 606. The third electromagnetic blocks 601a and the third iron sheet 602a are magnetically attracted to each other.

[0055] When the above-mentioned arrangement is used, since the waste gas contains strong adhesive filter cake, the filter cake on the outer wall of the filter cloth cannot be blown off by the conventional back blowing system. At this time, the filter candle 209 with more residual slag on the filter cloth is replaced into the cleaning cavity 102, then the electromagnetic valves on the three air ducts of the branch pipe 205b are controlled to open only the air duct leading to the filter candle 209 in the cleaning cavity 102, and then the back blowing system is back blown again. At this time, since only the filter candle 209 in the cleaning cavity 102 is back blown, sufficient air volume and pressure can be ensured, the overall uniformity is improved, the utilization efficiency and uniformity of the back blowing energy can be improved, unnecessary energy waste is reduced while the slag removal effect is ensured, and at the same time, the third electromagnetic blocks 601a above or below are sequentially electrified, the lifting plate 602 moves up and down under the magnetic attraction of the third electromagnetic blocks 601a and the third iron sheet 602a, the height of the notched ring plate 603 is changed, and when the notched ring plate 603 rises and falls 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 is blown onto the inclined leaves 604a. The inclined leaves 604a are forced to rotate the rotating half ring plate 604 at the bottom of the notched ring plate 603, so that the rotating half ring plate 604 rotates synchronously when it rises and falls, and then the filter cloth outer wall is cleaned again by the scraper 605 at the bottom of the rotating half ring plate 604 and the brush 606 inside it. The scraper 605 is at a certain distance from the filter cloth after expansion, so as to avoid damage to the filter cloth, and the brush 606 contacts the filter cloth to protect the filter cloth while cleaning, thereby improving the cleaning efficiency and effect of the filter cake and protecting the filter cloth.

[0056] Further, by adjusting the current size of the two third electromagnetic blocks 601a, the purpose of adjusting the suction size of the third iron sheet 602a is achieved, thereby changing the height of the lifting plate 602, and the gap of the gap ring plate 603 can be ensured to be sleeved outside the outer wall of the filter candle 209. The rotating half ring plate 604 is designed as a semicircle, which can rotate under the action of the track and can also avoid the rotating half ring plate 604 from being separated from the gap ring plate 603. There is a certain distance between the scraper 605 and the expanded filter cloth, which can avoid damaging the filter cloth. Embodiment 3

[0057] With reference to Figure 15 and Figure 16 As the third embodiment of the present application, which is based on the previous embodiment, the difference is that in order to quickly disassemble and assemble the filter candle 209, the clamping block 701 can be moved under the elastic action of the spring, so as to realize or release the limiting effect between the clamping block 701 and the double clamping hoop 2010, thereby simplifying the filter cloth replacement process and shortening the downtime.

[0058] Specifically, further comprising an installation assembly 700 arranged inside the moving groove 208b, the installation assembly 700 comprising a clamping block 701 slidingly installed on the inner wall of the moving groove 208b and a second telescopic rod 702 installed on the inner wall of the clamping block 701, and a third spring 702a is sleeved on the outer wall of the second telescopic rod 702; wherein the other end of the second telescopic rod 702 is installed on the groove wall of the moving groove 208b, and the third spring 702a and the second telescopic rod 702 are located between the clamping block 701 and the groove wall of the moving groove 208b;

[0059] In use, after the filter candle 209 to be replaced is adjusted inside the cleaning cavity 102, the maintenance door is opened, then the push ring 2011 is first pushed inward, the push ring 2011 is forced to move along the sliding hole on the double clamp 2010 with the top block 2011a, after the top block 2011a moves, it will extrude the clamping block 701 clamped in the sliding hole on the double clamp 2010, the clamping block 701 is forced to extrude the second telescopic rod 702 and the third spring 702a, and the clamping block 701 is pressed into the moving groove 208b, at this time, the clamping block 701 will release the limiting effect between the fixed arc plate 208 and the double clamp 2010, then the filter candle 209 is pressed towards the middle cylinder 203, at this time, since the butt joint assembly 500 (a certain elastic distance) is arranged in the middle cylinder 203, the end of the filter candle 209 installed on the upper three-pronged plate 205 or the lower three-pronged plate 206 will move out, after one end of the filter candle 209 moves out, the filter candle 209 is inclined to move the other end out of the middle cylinder 203, the disassembly of the filter candle 209 is completed, in installation, the filter candle 209 is first inserted into the middle cylinder 203, then it is vertically translated and pushed into the upper three-pronged plate 205 or the lower three-pronged plate 206, so that the filter candle 209 can be quickly pulled out from the maintenance door on the side of the filter, without entering the tank body or disassembling the top of the filter, greatly simplifying the filter cloth replacement process, shortening the downtime, and improving the safety.

[0060] Further, since the inner circle of the fixed arc plate 208 is greater than 180 degrees, after the double clamp 2010 is clamped into the bottom of the fixed arc plate 208, the double clamp 2010 cannot be translated to release the limiting effect, so the filter candle 209 cannot be removed by translation, and through the elastic performance of the third spring 702a, the position of the clamping block 701 is adjusted.

[0061] In addition, it should be noted that the components not described in detail herein are prior art.

[0062] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review the present disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements can be altered or varied. Other substitutions, modifications, changes, and omissions can be made in the design, operating

[0063] Also, to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (that is, not all implementations can include all of the features described below). It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0064] It will be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0065] It should be noted that the above-mentioned embodiments are only used to illustrate the technical scheme of the present application, not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical scheme of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, which should be covered in the scope of claims of the present application.

Claims

1. A candle filter for exhaust gas filtration treatment, characterized by: The utility model relates to a filter device, including, The filter body is sealedly installed with the top cover in the top, and the inside front end of the filter body is provided with a cleaning cavity, and the two sides of the cleaning cavity are provided with processing cavities adjacent; The top of the three-seal plate is fixedly provided with a top plate, and the outer walls of the three-seal plate and the top plate are fixedly arranged on the inner wall of the filter body, the upper and lower parts of the inside of the three-seal plate are provided with rotating cavities, the inner walls of the rotating cavities are provided with receiving grooves, the three-seal plate is provided with a middle cylinder at positions corresponding to the directions of the three cavities, and the inside of the three-seal plate is provided with a driving groove at one side edge; The sealing assembly comprises a sealing plate slidingly installed on the inner wall of the receiving groove and a first telescopic rod installed on the inner wall of the sealing plate, a first iron sheet is embedded in the center position of the inner wall of the sealing plate, a first electromagnetic block is arranged on the outer end of the first iron sheet, a first spring is arranged on the outer wall of the first telescopic rod, wherein the first electromagnetic block and the first telescopic rod are installed on the inner wall of the receiving groove, and the first electromagnetic block is magnetically attracted to the first iron sheet; The driving assembly comprises a U-shaped frame fixedly arranged on the inner wall of the driving groove and a motor installed in the inside of the U-shaped frame, a driving gear plate is installed on the output shaft of the motor, a driven gear plate is engaged on one side of the driving gear plate, a moving shaft is fixedly arranged in the inner wall of the driven gear plate, a sliding groove is arranged on the upper part of the inner wall of the U-shaped frame, second electromagnetic blocks are embedded in the middle parts of the groove walls on the two sides of the sliding groove, spline shafts are fixedly arranged on the top end and the middle part of the bottom end of the moving shaft, bearings on the moving plate are sleeved on the outer wall of the moving shaft, one end of the moving plate is slidingly installed in the sliding groove, transmission shafts are arranged above and below the moving shaft, and driving pulleys are sleeved on the outer wall ends of the transmission shafts; Wherein, a second iron sheet is embedded in one end of the inside of the moving plate, the second iron sheet is magnetically attracted to the second electromagnetic block, a spline groove is arranged at the center position of the end face of the transmission shaft on one side, and the spline shafts are slidingly inserted into the inside of the spline groove; and The butt joint assembly comprises a fixed ring fixedly arranged in the middle part of the inner wall of the middle cylinder and double-headed telescopic rods uniformly and intervally installed in the inside of the fixed ring along the circumferential direction of the inner wall of the middle cylinder, butt joint cylinder is installed at both ends of the double-headed telescopic rods, and second springs are sleeved on the upper and lower parts of the outer wall of the double-headed telescopic rods; Wherein, the second spring is located between the fixed ring and the adjacent butt joint cylinder.

2. A candle filter for exhaust gas treatment according to claim 1, characterized in that: The outside of the cleaning cavity and the two processing cavities is provided with an external pipe, and upper and lower adjacent rotating cavities are respectively provided with upper and lower three-pronged plates, a hollow shaft is arranged at the center position of the top of the upper three-pronged plate, a bottom shaft is arranged at the center position of the bottom of the lower three-pronged plate, and a branch pipe is arranged in the inside of the upper three-pronged plate.

3. A candle filter for exhaust gas treatment according to claim 2, characterized in that: The middle parts of the opposite end faces of the upper and lower three-pronged plates and the bottom shaft are fixedly provided with cylinders, and driven pulleys are sleeved on the outer walls 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 penetrates through the bearing on the top of the three-seal plate and is connected with the discharge pipe, the bottom end of the bottom shaft and the cylinder are respectively rotatably installed on the inner walls of adjacent rotating cavities, and the driven pulleys are drivingly connected with adjacent driving pulleys through synchronous belts.

4. A candle filter for exhaust gas treatment according to claim 3, characterized in that: The outer walls of the upper and lower three-pronged plates and the cylinders are uniformly and intervally fixedly provided with partition plates along the axial direction of the hollow shaft, sealing grooves are arranged at the center positions of the three side walls of the partition plates, fixed arc plates are fixedly arranged on the outer parts of the opposite end faces of the upper and lower three-pronged plates, and embedding grooves are arranged on the outer parts of the fixed arc plates.

5. A candle filter for exhaust gas treatment according to claim 4, characterized in that: One side wall of the fixed arc plate is provided with moving grooves at front and back ends, outer portions of opposite end faces of the upper and lower three-pronged plates are installed with filter candles, outer wall top portions of the filter candles are installed with double clamps through bolts, one side wall top portion of the double clamps is provided with a push ring, and both ends of the push ring are fixedly provided with top blocks. The baffle is correspondingly and sealingly installed in the adjacent rotating cavity, the one side wall of the double clamp is clamped in the embedded groove, and the top blocks are slidingly installed in the sliding holes on the double clamp.

6. A candle filter for exhaust gas treatment according to claim 1, characterized in that: The slag removal assembly includes a sliding frame fixedly arranged on the inner wall of the cleaning cavity and a lifting plate slidingly arranged in the sliding frame, and the inner top end and the inner bottom end of the sliding frame are embedded with third electromagnetic blocks, and the inner end of the lifting plate is embedded with a third iron sheet.

7. A candle filter for exhaust gas filtration treatment according to claim 6, characterized in that: The outer end of the lifting plate is fixedly provided with a notched ring plate, the bottom of the notched ring plate is slidingly installed with a rotating half ring plate, the top inner side of the rotating half ring plate is uniformly and interval fixedly provided with inclined leaves, the bottom outer side of the rotating half ring plate is fixedly provided with a scraper, and the inner wall of the rotating half ring plate is installed with a brush. The third electromagnetic blocks and the third iron sheet are magnetically attracted.

8. A candle filter for use in the treatment of exhaust gases as claimed in claim 5, characterised in that: The moving groove is internally provided with an installation assembly, the installation assembly includes a clamping block slidingly arranged on the inner wall of the moving groove and a second telescopic rod installed on the inner wall of the clamping block, and the outer wall of the second telescopic rod is sleeved with a third spring. The other end of the second telescopic rod is installed on the groove wall of the moving groove, and the third spring and the second telescopic rod are located between the clamping block and the groove wall of the moving groove.

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