Flue ash removal device
By designing a flue dust removal device with a support plate, a dispersing component, a buffer component, and a dust collection component, the problems of reduced heat exchange efficiency and safety hazards caused by flue dust accumulation are solved, achieving a highly efficient and safe flue cleaning effect.
Patent Information
- Application Number
- CN202511626728.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-02-06
AI Technical Summary
In existing technologies, ash accumulation on the inner wall of flue leads to reduced heat exchange efficiency and increased fuel consumption. Furthermore, the removal efficiency is low, the labor intensity is high, and there are safety hazards. In addition, traditional mechanical rapping ash removal suffers from severe wear and secondary ash accumulation.
A flue dust removal device was designed, including a support plate, a dispersing component, a buffer component, and a dust collection component. The device uses a rotating main shaft and stirring blades to disperse accumulated ash, the buffer component to reduce vibration, and the dust collection component to collect dust. The device achieves efficient cleaning through slow movement.
It achieves efficient cleaning of the flue's inner wall, reduces wear and secondary ash accumulation, improves cleaning efficiency, reduces labor intensity and operating costs, and ensures safety.
Smart Images
Figure CN121474575A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of ash removal, in particular to a flue ash removal device. BACKGROUND
[0002] In the production and operation of thermal power plants, the inner wall of the flue, as the key channel for conveying flue gas, is a long-standing and urgent technical problem. Impurities such as fly ash and unburned carbon particles carried by flue gas will gradually deposit on the inner wall of the flue, forming an ash layer.
[0003] From the perspective of energy efficiency, ash deposition can significantly reduce the heat exchange efficiency of the flue, increasing fuel consumption. According to industry statistics, for every 10mm increase in flue ash thickness, the thermal efficiency may decrease by 2%-5%, directly leading to an increase in the operating cost of the power plant. From the perspective of operational safety, excessive ash deposition can easily cause flue blockage, forcing the unit to shut down unexpectedly. Each shutdown for maintenance not only results in a loss of power generation revenue, but also requires a large amount of manpower and resources for cleaning operations. More seriously, ash deposition may occur under certain conditions, causing impact damage to equipment below the flue, and even causing safety accidents.
[0004] Currently, flue ash removal mainly uses the following methods: Manual knocking for ash removal: relying on manual tools to knock the outer wall or inner wall of the flue, this method is extremely inefficient, with an average daily cleaning area of less than 5㎡ per person, and has high labor intensity and a poor working environment (high temperature and high dust). The ash removal effect is affected by the force and frequency of manual operation, and the ash is not completely removed, leaving dead angles.
[0005] Traditional mechanical vibration for ash removal: using a rigid vibration mechanism (such as a heavy hammer type vibrator) to impact the flue for ash removal. Although this method improves efficiency to some extent, it has obvious defects: first, the rigid impact causes severe wear and tear to the flue, shortening its service life and increasing equipment maintenance costs; second, the ash after vibration is mostly accumulated at the bottom of the flue, lacking an effective ash removal mechanism and easily forming secondary ash deposition; third, the vibration mechanism vibrates violently during operation, affecting the stability of its own structure and the flue, making it difficult to meet the needs of flue ash removal in long-distance and complex conditions. SUMMARY
[0006] In view of the problems existing in the prior art, the present application is proposed.
[0007] To solve the above technical problems, the present application provides the following technical solutions: a flue ash removal device, comprising a support plate, a scattering assembly arranged at one end of the support plate, a buffer assembly arranged on the outer wall of the support plate, and a dust collecting assembly arranged at the other end of the support plate.
[0008] As a preferred scheme of the flue ash removal device, the outer wall of the stirring blade is provided with a plurality of dispersing blades in a circumferential array by bolts, and the dispersing blades are made of rubber material.
[0009] As a preferred scheme of the flue ash removal device, the buffer assembly comprises a fixed plate connected to the outer wall of the support plate by welding, and side plates movably arranged on both sides of the fixed plate.
[0010] As a preferred scheme of the flue ash removal device, the outer wall of each side plate is provided with a wheel body.
[0011] As a preferred scheme of the flue ash removal device, the outer wall of each side plate is provided with a pull rod.
[0012] As a preferred scheme of the flue ash removal device, an elastic member is arranged between the two pull rods.
[0013] As a preferred scheme of the flue ash removal device, a screw rod is arranged in the fixed plate for connecting with the support plate.
[0014] As a preferred scheme of the flue ash removal device, a first threaded groove is arranged in the fixed plate.
[0015] As a preferred scheme of the flue ash removal device, a second threaded groove is arranged on the outer wall of the conical plate and matched with the first threaded groove.
[0016] As a preferred scheme of the flue ash removal device, a push-pull rod is arranged on the outer wall of the conical plate by bolts.
[0017] The beneficial effects of the present application: the device provided by the present application is placed in the flue of the thermal power plant, the buffer support wheel of the middle support assembly is in contact with the inner wall of the flue to provide stable support, the starting motor is started, the left cylinder rotates, the dispersing leaves on the outer wall periodically knock the inner wall of the flue to shake off the accumulated ash; at the same time, the device slowly moves along the flue axis, the right conical plate moves with the device to shovel off the accumulated ash shaken off and continuously push it to the ash discharge port, finally realizing efficient cleaning of the flue. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them: Figure 1 It is a schematic diagram of the overall structure in the present application.
[0019] Figure 2 It is a schematic diagram of the dust collecting assembly structure in the present application.
[0020] Figure 3 It is a schematic diagram of the buffer assembly structure in the present application.
[0021] Figure 4 It is a schematic diagram of the push-pull rod structure in the present application. DETAILED DESCRIPTION
[0022] In order to make the above-mentioned purposes, 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 drawings.
[0023] In the following description, many 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 connotation of the present application, therefore the present application is not limited to the specific embodiments disclosed below.
[0024] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics 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 independent or alternative embodiment that excludes other embodiments.
[0025] The support plate 10; and the scattering assembly 20 arranged at one end of the support plate 10, comprising a rotating main shaft 21, a supporting framework 211 arranged on the outer wall of the main shaft 21, and stirring blades 22 arranged outside the supporting framework 211; and the buffer assembly 30 arranged on the outer wall of the support plate 10; and the dust collecting assembly 40 arranged at the other end of the support plate 10, comprising a fixed disc 41 connected with the support plate 10 through bolts and a conical plate 42 detachably connected with the fixed disc 41.
[0026] The outer wall of the stirring blades 22 is provided with dispersing blades 222 in a circumferential array through bolts, and the dispersing blades 222 are made of rubber material. The buffer assembly 30 comprises a fixed plate 31 connected with the outer wall of the support plate 10 through welding, side plates 311 movably arranged on both sides of the fixed plate 31, and wheel bodies 32 arranged on the outer wall of each side plate 311.
[0027] The outer wall of each side plate 311 is screwed with a pull rod 312, and an elastic member 33 is sleeved between the two pull rods 312. A screw rod 412 is arranged in the fixed disc 41 for connecting with the support plate 10. A first screw groove 411 is arranged in the fixed disc 41, a second screw groove 421 matched with the first screw groove 411 is arranged on the outer wall of the conical plate 42, and a push-pull rod 43 is mounted on the outer wall of the conical plate 42 through bolts.
[0028] The support plate 10 for bearing various functional assemblies is made of a rigid material with suitable strength. The plate body can be provided with a corresponding reinforcing rib structure according to the assembly scene to improve its bearing capacity and anti-deformation performance, thereby providing a stable assembly reference for the scattering assembly 20, the buffer assembly 30 and the dust collecting assembly 40, and ensuring the overall stability during the collaborative operation of the assemblies. The scattering assembly 20 arranged at one end of the support plate 10 has a main shaft 21 that can stably rotate. The main shaft 21 is used to transmit rotary power to drive the subsequent components to work. The supporting framework 211 mounted on the outer wall of the main shaft 21 is tightly fixed to the outer wall of the main shaft 21 and can rotate synchronously with the main shaft 21. The structure of the supporting framework 211 is matched with the inner profile of the stirring blades 22 to realize precise positioning and assembly of the stirring blades 22. The stirring blades 22 fixed outside the supporting framework 211 are mainly used for scattering the materials flowing through to ensure uniform dispersion of the materials. The buffer assembly 30 arranged on the outer wall of the support plate 10 is used to relieve the vibration generated during the operation of the scattering assembly 20, so as to avoid the transmission of vibration to the overall structure and cause the loosening of components. The dust collecting assembly 40 arranged at the other end of the support plate 10 is used to collect the dust materials generated during the scattering operation and reduce the pollution caused by dust leakage. The fixed disc 41 of the dust collecting assembly 40 is tightly connected with the support plate 10 through bolts. The connection part can be provided with a sealing washer to improve the sealing performance. The conical plate 42 is detachably connected with the fixed disc 41, which is convenient for cleaning and maintenance of the interior of the dust collecting assembly 40.
[0029] The outer wall of the stirring blade 22 is detachably bolted with a circumferentially arrayed dispersing blade 222. This circumferential array arrangement allows the dispersing blades 222 to disperse the material from all directions, avoiding any dead zones. The dispersing blades 222 are made of rubber, which has good elasticity and wear resistance. This material can buffer the impact force of the material through elastic deformation, preventing damage to the material being processed, and also reduces wear on the dispersing blades 222, extending their service life. Furthermore, the bolted connection allows for easy disassembly and replacement of the dispersing blades 222 after wear, reducing maintenance costs. In the buffer assembly 30, the fixed plate 31 is firmly connected to the outer wall of the support plate 10 by welding, with no obvious gaps at the weld, ensuring the assembly stability of the buffer assembly 30. The side plates 311 are movably mounted on both sides of the fixed plate 31. The wheels 32 mounted on their outer walls convert the sliding friction between the side plates 311 and the external structure into rolling friction, reducing frictional loss during relative movement and improving the smoothness of the buffering process.
[0030] Each side plate 311 has a tie rod 312 screwed onto its outer wall. The elastic element 33 sleeved between the two tie rods 312 is always in a pre-tight state. When the buffer assembly 30 is subjected to vibration force, the elastic element 33 can absorb vibration energy through its own elastic deformation, thereby weakening the impact of vibration on the support plate 10 and the overall structure. In addition, the tie rod 312 can limit the elastic element 33 to prevent the elastic element 33 from shifting when it deforms. The screw 412 inside the fixed plate 41 is used to form a secondary reinforcement connection with the support plate 10, further improving the tightness of the connection between the fixed plate 41 and the support plate 10, and preventing the connection from loosening due to vibration during operation; the first threaded groove 411 inside the fixed plate 41 is adapted to the second threaded groove 421 on the outer wall of the conical plate 42, and the two are detachably fixed through thread engagement, making assembly and disassembly operations convenient; the push-pull rod 43 installed on the outer wall of the conical plate 42 by bolts is easy for the staff to hold and operate, and helps the conical plate 42 and the fixed plate 41 to quickly connect and separate, improving the maintenance efficiency of the dust collection assembly 40.
[0031] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.
Claims
1. A flue dust removal device, characterized in that: include, Support plate (10); and, The dispersing assembly (20) disposed at one end of the support plate (10) includes a rotating main shaft (21), a supporting frame (211) disposed on the outer wall of the main shaft (21), and stirring blades (22) disposed outside the frame (211); and, A buffer assembly (30) is disposed on the outer wall of the support plate (10); and, The dust collection assembly (40) disposed at the other end of the support plate (10) includes a fixed plate (41) bolted to the support plate (10) and a conical plate (42) detachably connected to the fixed plate (41).
2. The flue dust removal device as described in claim 1, characterized in that: The outer wall of the stirring blade (22) is bolted with dispersion blades (222) arranged in a circular array, and the dispersion blades (222) are made of rubber material.
3. The flue dust removal device as described in claim 2, characterized in that: The buffer assembly (30) includes a fixed plate (31) that is welded to the outer wall of the support plate (10), and side plates (311) that are movably disposed on both sides of the fixed plate (31).
4. The flue dust removal device as described in claim 3, characterized in that: Each of the side plates (311) has a wheel (32) on its outer wall.
5. The flue dust removal device as described in claim 4, characterized in that: Each of the side plates (311) has a tie rod (312) screwed onto its outer wall.
6. The flue dust removal device as described in claim 5, characterized in that: An elastic element (33) is sleeved between the two pull rods (312).
7. The flue dust removal device as described in claim 6, characterized in that: A screw (412) is provided inside the fixed plate (41) for connecting with the support plate (10).
8. The flue dust removal device as described in claim 7, characterized in that: The fixed plate (41) is provided with a first threaded groove (411).
9. The flue dust removal device as described in claim 8, characterized in that: The outer wall of the tapered plate (42) is provided with a second threaded groove (421) that is compatible with the first threaded groove (411).
10. The flue dust removal device as described in claim 9, characterized in that: The outer wall of the tapered plate (42) is bolted with a push-pull rod (43).