Biomass pellet output device for boiler
By designing a biomass pellet output device for boilers, a servo motor is used to drive the shaft to rotate and feed the material. Combined with a belt conveyor and a collection cavity, the problems of manual operation difficulties and equipment damage during the biomass pellet feeding process are solved, and automated output and efficient conveying are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN FUEL ENERGY CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-07-21
AI Technical Summary
During the biomass pellet delivery process, manual operation is required through the hose suction machine, which is labor-intensive and inefficient. Belt conveyors are prone to damage and have difficulty in transmission, and are prone to leakage.
A biomass pellet output device for boilers was designed, including a device body, a control device, a telescopic cover plate, a belt conveyor, a feeding plate, a transmission and conveying device, and an electric push rod. The material is fed by rotating the shaft driven by a servo motor. Combined with the belt conveyor and the collection cavity, blockage and leakage are prevented.
It enables automated output of biomass pellets, reduces manual labor, prevents belt conveyor blockage and leakage, and improves conveying efficiency and equipment lifespan.
Smart Images

Figure CN224529734U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biomass boiler processing technology, and in particular to a biomass pellet output device for boilers. Background Technology
[0002] The main applications of biomass pellets include energy substitution, industrial heating, agricultural applications, and environmental protection and emission reduction. As an alternative fuel for coal-fired power plants, biomass pellets can reduce coal consumption and lower carbon emissions. The blending ratio needs to reach more than 10%, and in some scenarios it can be increased to more than 20%, helping to achieve the goal of carbon neutrality. During the biomass delivery process, the pellets are usually fed to the top of a belt conveyor using a flexible hose suction machine. However, this requires manual handling and movement of the flexible hose suction machine, which is labor-intensive and inefficient. On the other hand, the top of the belt conveyor is located at the material frame, but the weight of the pellets in the frame can easily damage the belt conveyor. Furthermore, the belt conveyor is difficult to operate and prone to leakage. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a biomass pellet output device for boilers, which solves the problems mentioned in the background art above.
[0004] To address the aforementioned technical problems, this utility model provides a biomass pellet output device for boilers, comprising a device body, a control device, a telescopic cover plate, a belt conveyor, a feeding plate, a transmission and conveying device, and an electric push rod. The device body is hollow and includes a first cavity and a second cavity. Feeding plates are welded to opposite sides of the first cavity, and a transmission and conveying device is located between the two feeding plates. A belt conveyor frame is located at the lower end of the first and second cavities of the device body, positioned below the feeding plates. A telescopic cover plate is located at the upper end of the device body, and an electric push rod is located at the lower end of the telescopic cover plate. The electric push rod is connected to the control device via a wire, and the control device is located at the upper end of the device body.
[0005] Preferably, the transmission and feeding device includes a servo motor, a coupling, a shaft, a feeding plate, a bushing, and a bearing. The bushing is located at the lower left end of the first cavity of the device body, and a bearing seat is provided on the corresponding right side plane; The servo motor is mounted on the lower left side of the device body by screws, and is connected to the shaft through a coupling, which passes through the bushing and engages with the bearing seat, and is located in the first cavity. A material-pulling plate is welded laterally to the outer side of the shaft and arranged in a ring at the upper end of the shaft.
[0006] Preferably, the belt conveyor includes a conveyor frame, a conveyor belt, a drive wheel, and a drive pressure wheel; One side of the conveyor frame is an upward-sloping plane, and the bend is located in the second cavity; The drive wheels are located at the left and right ends and the bend of the conveyor frame, and the conveyor belt is sleeved on the outside of the conveyor frame; the front and rear sides of the inclined plane of the conveyor frame are provided with drive pressure wheels that cooperate with the drive wheels; The conveyor belt is provided with annular baffles on both sides, and equidistant partitions are provided between the annular baffles; The annular baffle is provided with an outwardly extending conveyor belt, and the transmission pressure roller is located at the upper end of the extending conveyor belt.
[0007] Preferably, the annular baffle is disposed between the two side feed plates and the two sides fit tightly together.
[0008] Preferably, the control device includes a display screen, buttons, a microcontroller, and relays; The display screen and buttons are located on the outer surface of the device body and are connected to the microcontroller via wires; The microcontroller is connected to the relay via wires, and the relay is connected to the belt conveyor and the electric push rod via wires respectively.
[0009] Preferably, the upper end of the second cavity of the device body is slotted, and its height is less than two-thirds of that of the first cavity; The lower end of the partition plate between the first cavity and the second cavity is provided with a through groove, and the upper surface of the through groove is flush with the lower surface of the feeding plate.
[0010] Preferably, the feeding plate has an inclined plane plate and a vertically downward extending plate, and there is a gap between the front and rear symmetrical feeding plates in the cavity.
[0011] Using the above technical solution, this utility model provides a biomass pellet output device for boilers. The device body has a first cavity and a second cavity. The lower end of the first cavity has feeding plates on both sides, with a gap between the feeding plates. A transmission and conveying device is provided between the gaps to rotate and push the feeding, preventing blockage and controlling the output of biomass pellets. The lower end of the transmission and conveying device has a belt conveyor frame, which outputs pellets downward through the first cavity of the transmission and receiving device body. To prevent loose pellets from falling out through the output port of the belt conveyor frame, a second cavity is provided to collect loose pellets. The device has a simple structure and is easy to use. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the dashed structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the front view structure of an embodiment of the present utility model. Detailed Implementation
[0013] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0014] It should be noted that when a component is described as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is described as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.
[0015] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0016] The present invention will be further described below with reference to the accompanying drawings and examples.
[0017] like Figure 1 , 2 As shown in Figure 3, a biomass pellet output device for boilers includes a device body 301, a control device 302, a telescopic cover plate 303, a belt conveyor 304, a feeding plate 305, a transmission and conveying device 306, and an electric push rod 307. The device body 301 is hollow and has a first cavity 201 and a second cavity 202. The first cavity is used to place biomass pellets, and the second cavity is used to collect scattered pellets, while also facilitating the avoidance of the inclined plane on the right side of the belt conveyor. The first cavity 201 has opposite feeding plates 305 welded to both sides, and a transmission and conveying device 306 is provided between the two feeding plates 305. The feeding plate 305 is provided with an inclined plane plate 601 and a vertically downward extending plate 602, and there is a gap between the front and rear symmetrical feeding plates 305 in the cavity. The gap is used to install a transmission and conveying device, which facilitates closing the feeding channel and prevents blockage. The transmission and conveying device 306 includes a servo motor 101, a coupling 102, a shaft 103, a material feeding plate 104, a bushing 105, and a bearing 106. The bushing 105 is located at the lower left end of the first cavity 201 of the device body 301, and a bearing 106 is provided on the corresponding right side plane; The servo motor 101 is mounted on the lower left side of the device body 301 by screws, and is connected to the shaft 103 through the coupling 102, which passes through the bushing 105 and cooperates with the bearing 106, and is located in the first cavity 201. A material feeding plate 104 is welded laterally on the outer side of the shaft 103, and the material feeding plate 104 is arranged in a ring on the upper end of the shaft 103; the shaft is rotated by a servo motor to realize the downward output of material feeding; when stopped, the material feeding plates on both sides of the shaft block the material feeding, preventing the material from piling up on the upper end of the belt conveyor and reducing the transmission resistance. The lower end of the first cavity 201 and the second cavity 202 of the device body 301 is provided with a belt conveyor frame 304, which is located at the lower end of the feeding plate 305. The belt conveyor frame is used to receive the particles pushed down by the feeding plate at the upper end of the transmission and conveying device, thereby reducing the load and facilitating transmission. The belt conveyor 304 includes a conveyor frame 401, a conveyor belt 402, a drive wheel 403, and a drive pressure wheel 404; One side of the conveyor frame 401 is an upward-sloping plane, and the bend is located inside the second cavity 202; The drive wheel 403 is located at the left end, right end, and bend of the conveyor frame 401, and the conveyor belt 402 is sleeved on the outside of the conveyor frame 403; the front and rear sides of the inclined plane of the conveyor frame 401 are provided with drive pressure wheels 404 that cooperate with the drive wheel 403. The conveyor belt 402 is provided with annular baffles 405 on both sides, and equidistant partitions 406 are provided between the annular baffles 405. An annular baffle 405 is provided with an extended conveyor belt 407 extending outward, and a transmission pressure roller 404 is located at the upper end of the extended conveyor belt 407; The upper end of the device body 301 is provided with a telescopic cover plate 303, and the lower end of the telescopic cover plate 303 is provided with an electric push rod 307; the electric push rod 307 is connected to the control device 302 through a wire, and the control device 302 is located at the upper end of the device body 301. The upper telescopic cover is closed by pushing the electric push rod left and right, making it convenient to load and unload raw materials.
[0018] Preferably, the transmission and conveying device 306 includes a servo motor 101, a coupling 102, a shaft 103, a material feeding plate 104, a bushing 105, and a bearing 106; The bushing 105 is located at the lower left end of the first cavity 201 of the device body 301, and a bearing 106 is provided on the corresponding right side plane; The servo motor 101 is mounted on the lower left side of the device body 301 by screws, and is connected to the shaft 103 through the coupling 102, which passes through the bushing 105 and cooperates with the bearing 106, and is located in the first cavity 201. A material feeding plate 104 is welded laterally on the outer side of the shaft 103, and the material feeding plate 104 is arranged in a ring on the upper end of the shaft 103; the shaft is rotated by a servo motor to realize the downward output of material feeding; when stopped, the material feeding plates on both sides of the shaft block the feeding, prevent the material from piling up on the upper end of the belt conveyor, reduce the transmission resistance, and prevent blockage.
[0019] Preferably, the belt conveyor 304 includes a conveyor frame 401, a conveyor belt 402, a drive wheel 403, and a drive pressure wheel 404; One side of the conveyor frame 401 is an upward-sloping plane, and the bend is located inside the second cavity 202; The drive wheel 403 is located at the left end, right end, and bend of the conveyor frame 401, and the conveyor belt 402 is sleeved on the outside of the conveyor frame 403; the front and rear sides of the inclined plane of the conveyor frame 401 are provided with drive pressure wheels 404 that cooperate with the drive wheel 403. The conveyor belt 402 is provided with annular baffles 405 on both sides, and equidistant partitions 406 are provided between the annular baffles 405. An annular baffle 405 is provided with an extended conveyor belt 407, and a transmission pressure roller 404 is located at the upper end of the extended conveyor belt 407.
[0020] Preferably, the annular baffle 405 is located between the two side feed plates 305 and the two sides fit tightly together to facilitate the collection of particles and prevent them from falling to the lower end.
[0021] Preferably, the control device 302 includes a display screen, buttons, a microcontroller, and relays; The display screen and buttons are located on the outer surface of the device body and are connected to the microcontroller via wires; The microcontroller is connected to a relay via wires, and the relay is connected to a belt conveyor and an electric push rod via wires. The relay controls the transmission and material conveying device. The electric push rod opens and closes the telescopic cover to load materials. At the same time, it controls the belt conveyor to drive and convey materials.
[0022] Preferably, the upper end of the second cavity 202 of the device body 301 is slotted and its height is less than two-thirds of that of the first cavity 201; this facilitates the collection of loose materials and also facilitates the obstruction of the inclined plane of the belt conveyor.
[0023] The lower end of the partition plate between the first cavity 201 and the second cavity 202 is provided with a through groove, and the upper surface of the through groove is flush with the lower surface of the feeding plate 305; this facilitates flat-mouth output and prevents material from piling up and scattering.
[0024] Preferably, the feeding plate 305 is provided with an inclined plane plate 601 and a vertically downward extending plate 602, and there is a gap between the front and rear symmetrical feeding plates 305 in the cavity. The gap is used to install a transmission and conveying device, which facilitates closing the feeding channel and prevents blockage.
[0025] In use: The device body has a first cavity and a second cavity. Feed plates are located on both sides of the lower end of the first cavity, with a gap between the feed plates. A conveyor system is installed between the gaps to rotate and actuate the feed, preventing blockage and controlling the output of biomass pellets. A belt conveyor is located at the lower end of the conveyor system. Pellets are output downwards through the first cavity of the conveyor body. To prevent loose pellets from falling out of the belt conveyor, a second cavity is provided to collect any loose pellets. The device body is cavity-shaped and has a first cavity and a second cavity. The first cavity is used to hold biomass pellets, and the second cavity is used to collect loose pellets and facilitate the belt conveyor system. The right side of the conveyor frame has an inclined plane for clearance; opposite feeding plates are welded to both sides of the first cavity, and a transmission and conveying device is provided between the two feeding plates; the feeding plates have an inclined plane plate and a vertically downward extending plate, and there is a gap between the front and rear symmetrical feeding plates in the cavity. The gap is used to install the transmission and conveying device to facilitate closing the feeding channel and to prevent blockage by material feeding; the transmission and conveying device includes a servo motor, coupling, shaft, feeding plate, bushing, and bearing; the bushing is located at the lower left end of the first cavity of the device body, and a bearing is provided on the corresponding right side plane; the servo motor is located at the lower left end of the device body by screws, and the shaft is connected to the shaft through the coupling. The sleeve mates with the shaft seat and is located within the first cavity. A material-pushing plate is horizontally welded to the outer side of the shaft, and these plates are arranged in a ring at the upper end of the shaft. A servo motor rotates the shaft, enabling downward material output. When stopped, the material-pushing plates on both sides of the shaft block the material flow, preventing material buildup on the upper conveyor belt and reducing transmission resistance. A belt conveyor frame is located at the lower end of the first and second cavities of the device body, below the material discharge plate. The belt conveyor frame receives and transmits particles downward from the material-pushing plate at the upper end of the conveying device, reducing load and facilitating transmission. The belt conveyor includes a conveyor frame, a conveyor belt, a drive wheel, and a drive pressure wheel. One side of the conveyor frame is an upward-sloping plane. The bend is located within the second cavity; the drive wheel is located at the left and right ends of the conveyor frame and at the bend, and the conveyor belt is sleeved on the outside of the conveyor frame; drive pressure rollers are provided on the front and rear sides of the inclined plane of the conveyor frame to cooperate with the drive wheel; annular baffles are provided on both sides of the conveyor belt, and equidistant partitions are provided between the annular baffles; an extended conveyor belt is provided outward from the annular baffles, and the drive pressure roller is located at the upper end of the extended conveyor belt; a telescopic cover is provided at the upper end of the device body, and an electric push rod is provided at the lower end of the telescopic cover; the electric push rod is connected to the control device through a wire, and the control device is located at the upper end of the device body; by pushing the electric push rod left and right, the upper telescopic cover is closed, which facilitates the loading and unloading of raw materials.
[0026] This utility model provides a biomass pellet output device for boilers. The first cavity is convenient for loading biomass pellets, and the lower end is controlled and fed to the belt conveyor by a transmission and conveying device. The second cavity on the right side is used to collect scattered pellets. The device has a simple structure and is easy to use.
Claims
1. A biomass pellet output device for boilers, characterized in that, It includes the main body of the device, control device, telescopic cover plate, belt conveyor, feeding plate, transmission and conveying device, and electric push rod; The device body is hollow and has a first cavity and a second cavity; The first cavity has opposite feeding plates welded to both sides, and a transmission and conveying device is provided between the two feeding plates; The device body has a belt conveyor frame at the lower end of the first cavity and the second cavity, and is located at the lower end of the feeding plate; The device body is provided with a telescopic cover plate at the upper end and an electric push rod at the lower end of the telescopic cover plate; the electric push rod is connected to the control device through a wire, and the control device is located at the upper end of the device body.
2. The biomass pellet output device for boilers according to claim 1, characterized in that, The transmission and conveying device includes a servo motor, coupling, shaft, material feeding plate, bushing, and bearing. The bushing is located at the lower left end of the first cavity of the device body, and a bearing seat is provided on the corresponding right side plane; The servo motor is mounted on the lower left side of the device body by screws, and is connected to the shaft through a coupling, which passes through the bushing and engages with the bearing seat, and is located in the first cavity. A material-pulling plate is welded laterally to the outer side of the shaft and arranged in a ring at the upper end of the shaft.
3. A biomass pellet output device for boilers according to claim 1, characterized in that, The belt conveyor includes a conveyor frame, a conveyor belt, a drive wheel, and a drive pressure wheel; One side of the conveyor frame is an upward-sloping plane, and the bend is located in the second cavity; The drive wheels are located at the left and right ends and the bend of the conveyor frame, and the conveyor belt is sleeved on the outside of the conveyor frame; the front and rear sides of the inclined plane of the conveyor frame are provided with drive pressure wheels that cooperate with the drive wheels; The conveyor belt is provided with annular baffles on both sides, and equidistant partitions are provided between the annular baffles; The annular baffle is provided with an outwardly extending conveyor belt, and the transmission pressure roller is located at the upper end of the extending conveyor belt.
4. A biomass pellet output device for boilers according to claim 3, characterized in that, The annular baffle is located between the two side feed plates and the two sides fit together tightly.
5. A biomass pellet output device for boilers according to claim 1, characterized in that, The control device includes a display screen, buttons, a microcontroller, and relays; The display screen and buttons are located on the outer surface of the device body and are connected to the microcontroller via wires; The microcontroller is connected to the relay via wires, and the relay is connected to the belt conveyor and the electric push rod via wires respectively.
6. A biomass pellet output device for boilers according to claim 1, characterized in that, The upper end of the second cavity of the device body is slotted, and its height is less than two-thirds of that of the first cavity; The lower end of the partition plate between the first cavity and the second cavity is provided with a through groove, and the upper surface of the through groove is flush with the lower surface of the feeding plate.
7. A biomass pellet output device for boilers according to claim 1, characterized in that, The feeding plate is provided with an inclined plane plate and a vertically downward extending plate, and there is a gap between the front and rear symmetrical feeding plates in the cavity.