A boiler gas chamber ash removal device
By designing a boiler gas chamber cleaning device, which utilizes ash scraping and ash suction components to achieve thorough ash removal, the problem of reduced efficiency and blockage caused by ash accumulation in the gas chamber of biomass boilers has been solved, thereby improving boiler operating efficiency and ease of cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 嘉善东都节能技术有限公司
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-12
AI Technical Summary
Ash accumulation and solidification in the gas chamber of biomass boilers can cause blockage of the blower inlet, affecting boiler efficiency and normal operation. Existing manual cleaning methods are cumbersome.
Design a boiler gas chamber ash removal device, including an ash scraping component, an ash suction component, and an air intake component. The ash removal is achieved by a motor-driven lead screw and gear system, which enables the scraper to rotate 360 degrees. The ash suction component is used to suck out the furnace ash, and the rotating plate is rotated to restore the air intake channel.
It achieves thorough ash removal, improves the operating efficiency of biomass boilers, simplifies the cleaning process, and ensures smooth air intake for the air intake fan.
Smart Images

Figure CN224353013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biomass boilers, and specifically to a boiler gas chamber ash removal device. Background Technology
[0002] A biomass boiler is a type of boiler that uses biomass energy as fuel. During normal operation, the combustion of biomass fuel produces a large amount of ash. Some of this ash adheres to the inner wall of the boiler's gas chamber. Over time, this ash accumulates and solidifies into slag, obstructing the air inlets on both sides of the gas chamber. This reduces the boiler's efficiency and, in severe cases, can cause blockages, preventing the system from operating normally. Currently, manual cleaning is a cumbersome method.
[0003] Therefore, in order to overcome the shortcomings of the existing technology, it is necessary to design a boiler gas chamber cleaning device with a simple structure. Utility Model Content
[0004] This utility model provides a boiler gas chamber ash removal device to solve the problems of the prior art.
[0005] The objective of this utility model can be achieved through the following technical solution: A boiler gas chamber cleaning device includes: a furnace body, a scraping component, a suction component, an air intake component, and a guiding component. A gas chamber is located at the lower part of the furnace body, with an upper air inlet at the upper end and a lower air inlet at the lower end. The air intake component includes an air intake fan and a rotating plate. The rotating plate is rotatably mounted outside the gas chamber and has ventilation holes. The air intake fan is located outside the rotating plate. The guiding component includes a guide rail and a slider. The guide rail is vertically fixed inside the gas chamber, and the slider is slidably mounted on the guide rail. The scraping component includes a first motor, a lead screw, a ball bearing nut assembly, a base plate, a second motor, gears, and a ring. The system comprises a toothed disc and a scraper. A first motor is located at the lower end of the air chamber. The lower end of a lead screw is connected to the first motor, and the upper end of the lead screw is rotatably connected to the top of the air chamber. A ball bearing nut is mounted on the lead screw and a slider is fixedly connected to its left side. A base plate is fixed to the upper end of the slider and passes through a guide rail. A second motor is located at the lower end of one side of the base plate, and an output shaft is connected to the upper end of the output end of the second motor. The output shaft passes through to the upper end of the base plate and connects to a gear. The inner side of the circular toothed disc is rotatably connected to the gear. The bottom of the circular toothed disc is rotatably connected to the base plate via an end-face bearing. The guide rail is located inside the circular toothed disc and the end-face bearing. The scraper is located outside the circular toothed disc. The dust-collecting assembly is located at the lower end of the air chamber.
[0006] In a further improvement, the air chamber is provided with a baffle located at the lower end of the upper air inlet, and a cylinder is provided at the lower end of the baffle.
[0007] In a further improvement, the intake fan and the lower air intake are symmetrically arranged in two sets, and the ventilation holes on the rotating plate are symmetrically arranged in two sets.
[0008] In a further improvement, the dust collection component includes a dust collection fan and an air duct, the air duct connecting the lower end of the air chamber and the dust collection fan.
[0009] As a further improvement, the scraper is arranged in two sets symmetrically.
[0010] Compared with the prior art, the beneficial effects of this utility model boiler gas chamber ash removal device are as follows:
[0011] Rotating the rotating plate causes the vent hole and the lower air inlet to be staggered, blocking the lower air inlet and preventing the air intake fan from affecting the ash removal. Then, motor one drives the lead screw to rotate, which in turn drives the base plate, slider, motor two, gear, ring gear, and scraper on the upper end of the ball nut pair along the guide rail. At the same time, under the drive of motor two, the gear and ring gear work together to achieve the rotation of the scraper, thereby cleaning the inside of the gas chamber without dead angles. The effect is good. Finally, the ash suction component adsorbs the cleaned furnace ash outward. After the ash removal is completed, rotating the rotating plate connects the vent hole and the lower air inlet, opening the lower air inlet and ensuring that the air intake fan can smoothly enter the air, thus improving the efficiency of the biomass boiler. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of the present invention.
[0013] Figure 2 This is a schematic diagram of the internal partial top view of the present invention.
[0014] Figure 3 for Figure 1 Schematic diagram of the enlarged part
[0015] In the diagram, 1-furnace body, 11-gas chamber, 12-upper air inlet, 13-lower air inlet, 2-ash scraping assembly, 21-motor one, 22-lead screw, 23-ball bearing pair, 24-base plate, 25-motor two, 26-gear, 27-ring gear, 28-scraper, 29-end face bearing, 3-ash suction assembly, 31-dust suction fan, 32-air duct, 4-air intake assembly, 41-air intake fan, 42-rotating plate, 43-ventilation hole, 51-baffle, 52-cylinder, 6-guide assembly, 61-guide rail, 62-slider. Detailed Implementation
[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.
[0019] Example 1
[0020] A boiler air chamber cleaning device includes: a boiler body 1, an ash scraping assembly 2, an ash suction assembly 3, an air intake assembly 4, and a guide assembly 6. An air chamber 11 is located at the lower part of the boiler body 1. An upper air inlet 12 is located at the upper end of the air chamber 11, and a lower air inlet 13 is located at the lower end of the air chamber 11. The air intake assembly 4 includes an air intake fan 41 and a rotating plate 42. The rotating plate 42 is rotatably disposed outside the air chamber 11 and has ventilation holes 43. The air intake fan 41 is disposed outside the rotating plate 42. The guide assembly 6 includes a guide rail 61 and a slider 62. The guide rail 61 is vertically fixed inside the air chamber 11, and the slider 62 is slidably disposed on the guide rail 61. The ash scraping assembly 2 includes a first motor 21, a lead screw 22, a ball bearing nut assembly 23, a base plate 24, a second motor 25, a gear 26, a circular gear disc 27, and a scraper rod 28. The first motor 21 is located at the lower end of the air chamber 11. The lower end of the lead screw 22 is connected to the first motor 21, and the upper end of the lead screw 22 is rotatably connected to the top of the air chamber 11. The ball nut assembly 23 is located on the lead screw 22 and is fixedly connected to the slider 62 on the left side. The base plate 24 is fixed to the upper end of the slider 62 and passes through the guide rail 61. The second motor 25 is located at the lower end of one side of the base plate 24, and the upper end of the output end of the second motor 25 is connected to the output shaft. The output shaft passes through to the upper end of the base plate 24 and is connected to the gear 26. The inner side of the circular gear disk 27 is rotatably connected to the gear 26. The bottom of the circular gear disk 27 is rotatably connected to the base plate 24 through the end face bearing 29. The guide rail 61 is located inside the circular gear disk 27 and the end face bearing 29. The scraper 28 is located outside the circular gear disk 27. The dust suction assembly 3 is located at the lower end of the air chamber 11.
[0021] like Figures 1-3 As shown, the working principle of this utility model is as follows: When ash removal is required, the rotating plate 42 is rotated so that the vent 43 and the lower air inlet 13 are staggered to block the lower air inlet 13, preventing the air intake fan 41 from affecting the ash removal. Then, the motor 1 21 drives the lead screw 22 to rotate, which drives the base plate 24, slider 62, motor 25, gear 26, circular gear disk 27 and scraper 28 at the upper end of the ball nut pair 23 to rise and fall along the guide rail 6. At the same time, under the drive of motor 25, the gear 26 and the circular gear disk 27 work together to realize the 360-degree rotation of scraper 28, thereby cleaning the inside of the gas chamber without dead angles. The effect is good. Finally, the ash removed by the ash suction component 3 is adsorbed outward. After the ash removal is completed, the rotating plate 42 is rotated so that the vent 43 and the lower air inlet 13 are connected and the lower air inlet 13 is opened, ensuring that the air intake fan 41 can smoothly enter the air and improving the efficiency of the biomass boiler.
[0022] As a further preferred embodiment, the air chamber 11 is provided with a baffle 51 located at the lower end of the upper air inlet 12. A cylinder 52 is provided at the lower end of the baffle 51. When cleaning dust, the cylinder 52 drives the baffle 51 to move upward to block the upper air inlet 12 and prevent dust from entering upward.
[0023] As a further preferred embodiment, the intake fan 41 and the lower air intake 13 are symmetrically arranged in two sets, and the ventilation holes 43 on the rotating plate 42 are symmetrically arranged in two sets to improve the intake efficiency.
[0024] As a further preferred embodiment, the dust collection component 3 includes a dust collection fan 31 and an air guide pipe 32, wherein the air guide pipe 32 connects the lower end of the air chamber 11 and the dust collection fan 31.
[0025] As a further preferred embodiment, the scraper 28 is symmetrically arranged in two sets to improve the dust removal effect.
[0026] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A boiler gas chamber ash removal device, characterized in that, include: The furnace body comprises a ash scraping assembly, an ash suction assembly, an air intake assembly, and a guide assembly. The furnace body has an air chamber located at its lower interior. The air chamber has an upper air inlet at its upper end and a lower air inlet at its lower end. The air intake assembly includes an air intake fan and a rotating plate. The rotating plate is rotatably mounted outside the air chamber and has ventilation holes. The air intake fan is located outside the rotating plate. The guide assembly includes a guide rail and a slider. The guide rail is vertically fixed inside the air chamber, and the slider is slidably mounted on the guide rail. The ash scraping assembly includes a first motor, a lead screw, a ball bearing nut assembly, a base plate, a second motor, gears, a circular gear disc, and a scraper rod. The first motor is located below the air chamber. The lower end of the lead screw is connected to motor one, and the upper end of the lead screw is rotatably connected to the top of the air chamber. The ball nut pair is set on the lead screw and the slider is fixedly connected to the left side. The base plate is fixed to the upper end of the slider and passes through the guide rail. Motor two is set on the lower end of one side of the base plate, and the upper end of the output end of motor two is connected to an output shaft. The output shaft passes through to the upper end of the base plate and is connected to a gear. The inner side of the circular gear disk is rotatably connected to the gear. The bottom of the circular gear disk is rotatably connected to the base plate through an end face bearing. The guide rail is located inside the circular gear disk and the end face bearing. The scraper is set on the outer side of the circular gear disk. The dust suction assembly is set at the lower end of the air chamber.
2. The boiler gas chamber cleaning device according to claim 1, characterized in that, The air chamber is equipped with a baffle located at the lower end of the upper air inlet, and a cylinder is located at the lower end of the baffle.
3. The boiler gas chamber cleaning device according to claim 1, characterized in that, The intake fan and the lower air intake are symmetrically arranged in two sets, and the ventilation holes on the rotating plate are symmetrically arranged in two sets.
4. A boiler gas chamber cleaning device according to claim 1, characterized in that, The dust collection component includes a dust collection fan and an air duct, with the air duct connecting the lower end of the air chamber to the dust collection fan.
5. A boiler gas chamber cleaning device according to claim 1, characterized in that, The scraper rods are arranged in two sets symmetrically.