A dense-type curing barn flue ash removal device
Patent Information
- Application Number
- CN202522551451.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-12-01
AI Technical Summary
[0005]为了克服目前密集式烤房烟道清灰仍依赖人工，需停炉后进入狭窄烟道手工清理，存在劳动强度大、效率低、清灰不彻底、易堵塞、安全隐患及烟道损伤等问题，现有改进装置则因结构复杂、成本高或效率低而难以推广的缺点，本实用新型提供一种密集式烤房烟道清灰装置
[0012]与现有技术相比，本实用新型具有以下优点：1、本实用新型通过操作人员只需在烟道外部手持吸头即可完成清灰作业，无需等待烤房完全冷却后进入狭窄空间，显著降低了劳动强度和安全风险，柔软的伸缩管设置使得吸头能够灵活伸入炉膛及烟道内部各个角落，实现对弯折处和深部区域的全面清理，解决了人工清理存在的盲区问题，确保了清灰的彻底性，有效避免了因积灰清理不彻底导致的烟道堵塞问题，这种非接触式的清理方式完全避免了对烟道内壁的机械损伤，延长了设备使用寿命。
Smart Images
Figure CN224875980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of intensive curing oven flue technology, and in particular to an ash removal device for intensive curing oven flue. Background Technology
[0002] Intensive curing barns are key pieces of equipment in modern tobacco processing. Through scientific control of temperature and humidity, they dry and color-fix tobacco leaves, directly impacting the final product quality. The core heating components of the curing barn are its internal heat exchangers and connected flue system. During long-term curing operations, soot and ash from fuel combustion (such as coal) continuously accumulate on the inner walls of the flue, forming a hard ash layer. This not only reduces the heat transfer efficiency of the heat exchange equipment and increases the operating costs of the curing barn, but also affects the precise control of the curing temperature, increasing the curing losses of the tobacco leaves.
[0003] Currently, the cleaning of ash from the flues of intensive drying ovens still primarily relies on traditional manual methods. Operators must wait for the oven to completely cool before crawling into the narrow, dark interior of the furnace or flue to manually tap and scrape using simple tools such as steel chisels and hammers. This method is not only extremely labor-intensive, creates a harsh working environment, and has a long cleaning cycle, severely impacting the continuity of drying operations, but also fails to guarantee cleaning effectiveness. Especially for ash accumulation in bends and deep within the flue, it is often impossible to completely remove it, leading to recurring problems of incomplete cleaning. Furthermore, manual cleaning poses significant safety risks and can easily cause mechanical damage to the inner walls of the flue during the tapping process. Although some attempts have been made to improve the cleaning device, their structures are often complex, costly to manufacture, or inefficient, making widespread adoption and application in the industry difficult.
[0004] Therefore, it is necessary to design a dense flue cleaning device for drying ovens to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the current reliance on manual labor for cleaning the flue of intensive curing barns, which requires manual cleaning after the furnace is shut down and the narrow flue is entered, resulting in problems such as high labor intensity, low efficiency, incomplete cleaning, easy blockage, safety hazards, and flue damage, and the shortcomings of existing improved devices due to their complex structure, high cost, or low efficiency, this utility model provides a intensive curing barn flue cleaning device.
[0006] The technical implementation scheme of this utility model is as follows: a dense flue dust removal device for a drying oven, comprising a base frame, mounting blocks, a controller, a housing, a top plate, a filter screen, a dust hood, a connecting pipe, a material pump, a conveying pipe, a telescopic pipe, a suction head, a door, an inner box, an electric push rod, and a snap-fit assembly. Mounting blocks are symmetrically fixedly connected to both sides of the base frame, each mounting block having two mounting holes. The controller is fixedly connected to the right side of the base frame. The housing is rotatably connected to the top of the base frame, and the top plate is fixedly connected to the top of the housing. A vent is provided on the top of the top plate, and a filter is embedded and fixedly connected to the vent. The top of the box is fixedly connected to a dust hood, the top of which is fixedly connected to and connected to a connecting pipe. The right side of the connecting pipe is fixedly connected to and connected to a material pump. The material pump is fixedly connected to the top of the dust hood, the right side of which is fixedly connected to and connected to a conveying pipe. The bottom of the conveying pipe is fixedly connected to and connected to a telescopic pipe, the bottom of which is fixedly connected to and connected to a suction head. The suction head is slidably placed on the upper right side of the box door. An inner box is fixedly connected inside the box. An electric push rod is fixedly connected to the bottom of the base frame. The front of the telescopic rod of the electric push rod is fixedly connected to the bottom of the box. A snap-fit assembly is provided between the box and the front of the box door.
[0007] In a preferred embodiment of this utility model, the telescopic tube is made of a flexible material.
[0008] In a preferred embodiment of this utility model, the snap-fit assembly includes a connecting block, a rotating shaft, a screw, a snap-fit block, a snap-fit cylinder, and a crank handle. Connecting blocks are symmetrically fixedly connected to the front of the housing. A rotating shaft is rotatably connected between two connecting blocks on one side. A screw is symmetrically fixedly connected to the rotating shaft. Snap-fit blocks are threaded onto both screws. Both snap-fit blocks are slidably connected to their corresponding connecting blocks. Snap-fit cylinders are symmetrically fixedly connected to the front of the housing door. Both snap-fit blocks are snapped into their corresponding snap-fit cylinders. A crank handle is fixedly connected to one of the connecting blocks on the right side of the rotating shaft.
[0009] In a preferred embodiment of the present invention, a pusher plate and a counterweight are also included. The pusher plate is slidably connected inside the inner box, and the counterweight is embedded and fixedly connected to the rear of the pusher plate.
[0010] In a preferred embodiment of the present invention, the device further includes a rotating roller and a connecting belt. The rotating roller is symmetrically and rotatably connected inside the inner box, and a connecting belt is wound between one side of the two rotating rollers.
[0011] In a preferred embodiment of this utility model, the connecting strip is located below the dust cover and the top plate.
[0012] Compared with the prior art, this utility model has the following advantages: 1. This utility model allows operators to complete the ash cleaning operation simply by holding the suction head outside the flue, without having to wait for the oven to cool completely before entering the narrow space. This significantly reduces labor intensity and safety risks. The flexible telescopic tube allows the suction head to flexibly reach into every corner of the furnace and flue, achieving comprehensive cleaning of bends and deep areas. This solves the blind spot problem of manual cleaning, ensures thorough ash cleaning, and effectively avoids flue blockage caused by incomplete ash removal. This non-contact cleaning method completely avoids mechanical damage to the inner wall of the flue and extends the service life of the equipment.
[0013] 2. This utility model uses a counterweight-driven pusher plate that slides forward automatically to thoroughly scrape away the dirt and grime adhering to the inner wall of the box. At the same time, the rotating roller drives the connecting belt to continuously rotate, constantly conveying the dust collected at the bottom to the outside of the box door. This ensures that the dust in the inner box can be completely removed without any residue, greatly simplifies the cleaning process, improves work efficiency, avoids overly complex mechanical structures, reduces manufacturing costs and maintenance difficulty, and has good applicability for promotion. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a three-dimensional structural diagram of the mounting block, controller, and housing components of this utility model.
[0016] Figure 3 This is a schematic diagram of the covering structure for the screw, locking block, and locking cylinder components of this utility model.
[0017] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the electric push rod, the push plate, and the counterweight.
[0018] Figure 5 This is a three-dimensional structural diagram of the pusher plate, rotating roller, and connecting belt of this utility model.
[0019] Figure 6 This is a three-dimensional structural diagram of the components of this utility model, including the material pump, conveying pipe, and telescopic pipe.
[0020] Figure 7 This is a three-dimensional structural diagram of the connecting block, rotating shaft, and screw of this utility model.
[0021] The components in the attached diagram are labeled as follows: 1. Base frame, 2. Mounting block, 3. Controller, 4. Housing, 5. Top plate, 6. Filter screen, 7. Dust cover, 8. Connecting pipe, 9. Material pump, 10. Material conveying pipe, 11. Telescopic pipe, 12. Suction head, 13. Door, 14. Inner box, 15. Connecting block, 16. Rotating shaft, 17. Screw, 18. Clamping block, 19. Clamping cylinder, 20. Handle, 21. Electric push rod, 22. Push plate, 23. Counterweight, 24. Rotating roller, 25. Connecting belt. Detailed Implementation
[0022] Example: A dense flue cleaning device for drying ovens, such as Figures 1-7 As shown, it includes a base frame 1, mounting blocks 2, a controller 3, a housing 4, a top plate 5, a filter screen 6, a dust cover 7, a connecting pipe 8, a material pump 9, a conveying pipe 10, a telescopic pipe 11, a suction head 12, a door 13, an inner box 14, an electric push rod 21, a connecting block 15, a rotating shaft 16, a screw 17, a locking block 18, a locking cylinder 19, and a crank handle 20. Mounting blocks 2 are symmetrically welded to the left and right sides of the base frame 1, and each mounting block 2 has two mounting holes. The right rear side of the base frame 1... A controller 3 is installed with screws. A housing 4 is rotatably connected to the top side of the base frame 1. A top plate 5 is installed with screws on the front top of the housing 4. A vent is opened in the center of the top side of the top plate 5. A filter screen 6 is embedded in the vent and installed with screws. A dust cover 7 is installed with screws on the rear top of the housing 4. A connecting pipe 8 is fixedly connected to the top of the dust cover 7. A material pump 9 is fixedly connected to the right end of the connecting pipe 8. The material pump 9 is fixedly connected to the right side of the top of the dust cover 7. A conveying pipe 10 is fixedly connected to the right side of the material pump 9. A telescopic pipe 11 is fixedly connected to the bottom of the conveying pipe 10. The telescopic pipe 11 is made of soft material. A suction head 12 is fixedly connected to the bottom side of the telescopic pipe 11. The suction head 12 is slidably placed on the right side of the door 13. An inner box 14 is welded inside the housing 4. An electric push rod 21 is installed with screws on the rear bottom of the base frame 1. The front end of the telescopic rod of the electric push rod 21 is fixedly connected to the rear bottom of the housing 4. Connecting blocks are symmetrically welded on the left and right sides of the front side of the housing 4. 15. A rotating shaft 16 is rotatably connected between the two connecting blocks 15 on their adjacent sides. Screws 17 are symmetrically welded to the rotating shaft 16 on the left and right sides. Each screw 17 is threadedly connected to a locking block 18. Both locking blocks 18 are slidably connected to the corresponding connecting blocks 15. 19 locking sleeves 19 are symmetrically installed on the lower front side of the box door 13 by screws. Both locking blocks 18 are locked into the corresponding locking sleeves 19. A crank handle 20 is welded to the right end of the rotating shaft 16 through the connecting block 15 on the right side.
[0023] like Figure 4 , Figure 5 and Figure 7As shown, it also includes a pusher plate 22, a counterweight 23, a rotating roller 24, and a connecting belt 25. The pusher plate 22 is slidably connected to the inner side of the inner box 14. The counterweight 23 is embedded in the center of the rear side of the pusher plate 22 and installed by screws. The rotating roller 24 is symmetrically rotated and connected to the lower side of the inner box 14. The connecting belt 25 is wrapped between the two rotating rollers 24 on the side that are close to each other. The connecting belt 25 is located directly below the dust cover 7 and the top plate 5.
[0024] When this device is needed for dust removal, the operator first securely installs the entire device on the tricycle using mounting block 2 and connects the power supply. Then, the operator drives the tricycle to move the dust removal device to the vicinity of the flue opening of the intensive drying room and prepares for the operation.
[0025] At the start of the dust removal process, the operator first holds the suction head 12, aligns it, and inserts it into the interior of the drying oven flue that needs cleaning. Because the telescopic tube 11 is made of a soft material with good flexibility and extensibility, the operator can flexibly adjust the depth and angle of the suction head 12 to ensure it covers every corner of the flue, especially areas with heavy dust accumulation. Next, the operator starts the material pump 9 via the controller 3. The material pump 9 then operates at high speed, generating a powerful negative pressure suction. This suction is transmitted through the material delivery pipe 10, connecting pipe 8, and dust cover 7 to the entire interior of the housing 4, ultimately acting on the suction head 12 at the front. Under the powerful suction, the loose ash on the inner wall of the flue is instantly peeled off. The dust particles are sucked into the suction head 12 and then flow sequentially through the telescopic tube 11, the conveying tube 10, and the connecting tube 8, finally entering the dust hood 7. Inside the dust hood 7, the airflow speed slows down and changes direction. Most of the heavier dust particles initially settle under the action of gravity and inertia, thus achieving preliminary gas-solid separation and reducing the amount of dust entering the housing 4. The airflow carrying a small amount of fine dust then enters the interior of the housing 4. At this time, the airflow must pass through the filter screen 6 before it can be discharged from the housing 4. The filter screen 6 effectively intercepts the remaining fine dust in the airflow, ensuring that the discharged air is relatively clean and avoiding secondary pollution. The collected dust eventually falls into the inner box 14 at the bottom of the housing 4 for storage.
[0026] When the dust removal operation is completed, the material pump 9 is turned off by the controller 3. When the collected dust needs to be discharged, the operator first turns the crank handle 20 clockwise. The crank handle 20 drives the rotating shaft 16 and the two screws 17 on it to rotate synchronously. The two locking blocks 18 will move towards each other at the same time, thus disengaging from the locking cylinder 19 of the box door 13 and unlocking. Then, the operator starts the electric push rod 21 through the controller 3. The telescopic rod of the electric push rod 21 extends forward, and the box body 4 begins to slowly tilt forward under the action of the thrust. Then, the dust pushes the box door 13 to open clockwise under the action of gravity. When the box body 4 tilts to a certain angle, the dust collected in the inner box 14 will slide naturally along the inclined bottom wall of the inner box 14 towards the box door 13 and concentrate under the action of gravity.
[0027] To ensure that the dust is completely removed, while the box 4 is tilted, the counterweight 23, due to its own weight, always drives the pusher plate 22 to remain vertical, thereby pushing it to slide forward along the inner wall of the tilted inner box 14, like a pusher, to completely scrape off any residual dirt that may be attached to the inner box 14 wall and push it toward the box door 13 outlet. At the same time, the two rotating rollers 24 and their connecting belts 25 also start to operate. The connecting belts 25 move continuously, effectively conveying the dust collected at the bottom to the outside of the box door 13, thereby achieving a fast, thorough, and residue-free dust removal process.
[0028] After the ash removal work is completed, the operator controls the telescopic rod of the electric push rod 21 to retract backward through the controller 3, driving the box 4 to rotate smoothly clockwise until it returns to the initial horizontal working position. Then, the operator manually pushes the push plate 22 back to the rear of the inner box 14 to reset it. Finally, the box door 13 is closed, and the crank handle 20 is turned counterclockwise. The crank handle 20 drives the two locking blocks 18 to move outward through the rotating shaft 16 and the screw 17, and re-locks them into the locking cylinder 19 on the box door 13, thus firmly locking the box door 13. At this point, the entire ash cleaning and ash removal process is completed, and the device returns to standby mode, ready for the next operation.
Claims
1. A dense-type flue dust removal device for drying ovens, characterized in that: The system includes a base frame (1), mounting blocks (2), a controller (3), a housing (4), a top plate (5), a filter screen (6), a dust cover (7), a connecting pipe (8), a material pump (9), a conveying pipe (10), a telescopic pipe (11), a suction head (12), a door (13), an inner box (14), an electric push rod (21), and a snap-fit assembly. Mounting blocks (2) are symmetrically fixed to both sides of the base frame (1). Each mounting block (2) has two mounting holes. The controller (3) is fixedly connected to the right side of the base frame (1). The housing (4) is rotatably connected to the top of the base frame (1). The top plate (5) is fixedly connected to the top of the housing (4). A vent is provided on the top of the top plate (5), and a filter screen (6) is embedded and fixedly connected to the vent. The top of the housing (4) is fixedly connected to… There is a dust cover (7), the top of the dust cover (7) is fixedly connected to and connected to a connecting pipe (8), the right side of the connecting pipe (8) is fixedly connected to and connected to a material pump (9), the material pump (9) is fixedly connected to the top of the dust cover (7), the right side of the material pump (9) is fixedly connected to and connected to a conveying pipe (10), the bottom of the conveying pipe (10) is fixedly connected to and connected to a telescopic pipe (11), the bottom of the telescopic pipe (11) is fixedly connected to and connected to a suction head (12), the suction head (12) is slidably placed on the right side of the box door (13), the inner box (14) is fixedly connected inside the box body (4), the bottom of the base frame (1) is fixedly connected to an electric push rod (21), the front of the telescopic rod of the electric push rod (21) is fixedly connected to the bottom of the box body (4), and a snap-fit assembly is provided between the front of the box body (4) and the box door (13).
2. The intensive curing barn flue cleaning device according to claim 1, characterized in that: The telescopic tube (11) is made of a soft material.
3. A dense curing barn flue cleaning device according to claim 2, characterized in that: The snap-fit assembly includes a connecting block (15), a rotating shaft (16), a screw (17), a snap-fit block (18), a snap-fit cylinder (19), and a crank (20). The front of the housing (4) is symmetrically fixedly connected to the connecting block (15). The two connecting blocks (15) are rotatably connected to the rotating shaft (16) on one side. The rotating shaft (16) is symmetrically fixedly connected to the screw (17). The two screws (17) are threadedly connected to the snap-fit block (18). The two snap-fit blocks (18) are slidably connected to the corresponding connecting block (15). The front of the door (13) is symmetrically fixedly connected to the snap-fit cylinder (19). The two snap-fit blocks (18) are snapped into the corresponding snap-fit cylinder (19). The right side of the rotating shaft (16) passes through one of the connecting blocks (15) and is fixedly connected to the crank (20).
4. A dense curing barn flue cleaning device according to claim 3, characterized in that: It also includes a pusher plate (22) and a counterweight (23). The pusher plate (22) is slidably connected inside the inner box (14), and the counterweight (23) is embedded and fixedly connected to the rear of the pusher plate (22).
5. A dense curing barn flue cleaning device according to claim 4, characterized in that: It also includes a rotating roller (24) and a connecting belt (25). The rotating roller (24) is symmetrically rotated inside the inner box (14), and the connecting belt (25) is wrapped between the two rotating rollers (24) on one side.
6. A dense curing barn flue cleaning device according to claim 5, characterized in that: The connecting strip (25) is located below the dust cover (7) and the top plate (5).