Feeding blockage monitoring device for feeding hole of biomass boiler
By installing laser monitoring and hydraulic adjustment components at the feed inlet of the biomass boiler, the problem of feed inlet blockage was solved, enabling real-time monitoring and prevention of blockage, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-03
AI Technical Summary
The feed inlet of existing biomass boilers is prone to blockage when materials are concentrated or the feeding speed is too fast. This makes it difficult to monitor and handle in real time, affecting the normal operation and production efficiency of the boiler.
The monitoring component, consisting of a laser emitter and a laser receiver, detects material blockage by blocking the laser beam. Combined with the adjustment components of hydraulic cylinders and moving plates, it monitors and prevents blockage in real time. The vibrator and inclined plate guide the material to ensure that the material enters the boiler smoothly.
Real-time monitoring and anti-clogging of the feed inlet were achieved, improving production efficiency and ensuring the stable operation of the boiler.
Smart Images

Figure CN224076408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biomass boiler feeding technology, and more specifically, to a biomass boiler feed inlet blockage monitoring device. Background Technology
[0002] A biomass boiler is a boiler device that uses biomass energy as fuel. The working principle of a biomass boiler is to burn biomass fuel (such as crop straw, sawdust, rice husks, etc.) in the furnace to produce high-temperature flue gas. This high-temperature flue gas transfers heat to the water in the boiler through the boiler's heating surface, heating the water into steam or hot water, thereby providing heat energy for industrial production or domestic use. The feed inlet of a biomass boiler is usually located at the front or side of the boiler and is connected to a feeding device, such as a screw feeder or scraper feeder.
[0003] A search revealed that Chinese Patent CN212618412U discloses a biomass boiler feeding mechanism. This utility model uses the combined use of stirring blades and vibrating plates to disperse the material from the feed hopper to the buffer box. Due to the vibration of the vibrating plates, the material is moved evenly to the discharge port, avoiding the phenomenon of material crossing, overlapping, and clumping together. This improves the stability of material supply and prevents material from clogging at the discharge port. In addition, the feed box is equipped with auxiliary components for moving the material with auxiliary vibrating plates, which improves the stability of the equipment during use.
[0004] When the above-mentioned feeding mechanism is in use, the vibration plate and stirring blades can improve the movement of materials. However, when a large amount of material is concentrated in the feed or the feeding speed is too fast, the feed inlet will still be blocked. It is inconvenient to monitor the feed inlet in real time, making it difficult to detect the blockage in the feed inlet in time, which affects the normal operation of the boiler and reduces production efficiency. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a biomass boiler feed inlet blockage monitoring device, which aims to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a biomass boiler feed inlet blockage monitoring device, comprising a feed box and a first discharge pipe, wherein one end of the first discharge pipe is fixedly connected to the feed box, and a monitoring component is provided on the first discharge pipe. The monitoring component includes two mounting plates, a laser emitter, a laser receiver, two vertical plates, a horizontal plate, a lead screw, and two threaded sleeves. The opposing sides of the two mounting plates are fixedly connected to the laser emitter and the laser receiver, respectively, and the tops of the two mounting plates are fixedly connected to the two vertical plates, respectively. The tops of the two vertical plates penetrate the first discharge pipe and are fixedly connected to the horizontal plate, and the bottom end of the lead screw penetrates the horizontal plate and is fixedly connected to the first discharge pipe. The two threaded sleeves are movably sleeved on the lead screw, and the opposing sides of the two threaded sleeves are in contact with the horizontal plate.
[0007] Furthermore, an inclined plate is fixedly connected to the bottom of the feed box.
[0008] As can be seen, in the above technical solution, the inclined plate guides the material and allows the material to enter the first discharge pipe.
[0009] Furthermore, a vibrator is fixedly installed at the center of the bottom end of the feed box.
[0010] As can be seen, in the above technical solution, starting the vibrator allows the vibrator to vibrate the material in the feed box.
[0011] Furthermore, a fixed plate is movably provided at the bottom of the vibrator, and two support frames are fixedly connected to the top of the fixed plate, with the top of each support frame being fixedly connected to the feed box.
[0012] As can be seen, in the above technical solution, the feed box can be fixed by fixing the fixing plate with bolts.
[0013] Furthermore, a second discharge pipe is fixedly connected to the bottom end of the first discharge pipe and near one side edge.
[0014] As can be seen, in the above technical solution, the material can enter the biomass boiler vertically through the second discharge pipe.
[0015] Furthermore, a top frame is fixedly installed at the top of the first discharge pipe and near one side edge. An adjustment component is provided on the top frame, and the adjustment component includes a hydraulic cylinder, a moving plate, a baffle, and a gasket.
[0016] Furthermore, the hydraulic cylinder is fixedly installed at the top of the top frame, and the piston rod end of the hydraulic cylinder is fixedly connected to the moving plate. The top of the baffle is fixedly connected to the moving plate. The gasket is fixedly sleeved on the moving plate, and the outer side of the gasket is in contact with the second discharge pipe.
[0017] As can be seen, in the above technical solution, when the moving plate and the baffle move a short distance up and down, the moving plate can squeeze the material in the first discharge pipe to prevent the material from being blocked in the first discharge pipe.
[0018] The technical effects and advantages of this utility model are as follows:
[0019] 1. This utility model uses a laser emitter to emit laser light. When material accumulates and blocks the first discharge pipe, the material blocks the laser emitted by the laser emitter, preventing the laser receiver from receiving the laser. The horizontal plate moves vertically downward, thereby driving the laser emitter and laser receiver to move vertically downward. The height of the laser emitter and laser receiver can be adjusted as needed. The operation is simple and convenient for real-time monitoring of the feed inlet, effectively improving production efficiency.
[0020] 2. This utility model uses the retraction of the piston rod on the hydraulic cylinder to drive the moving plate upward, thereby driving the baffle upward. The moving plate and the baffle block one side of the first discharge pipe, allowing the material to enter the biomass boiler vertically through the second discharge pipe. Similarly, the extension of the piston rod on the hydraulic cylinder drives the moving plate and the baffle downward, making feeding convenient and applicable to a wide range of applications. Attached Figure Description
[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a bottom view of the overall structure of this utility model;
[0024] Figure 3 This is a cross-sectional view of the feed box and a schematic diagram of the assembly structure of the adjustment component of this utility model.
[0025] Figure 4 This is a cross-sectional view of the top frame and a schematic diagram of the assembly structure of the adjustment component of this utility model.
[0026] Figure 5 This is a schematic diagram of the monitoring component structure of this utility model.
[0027] In the diagram: 1. Feed box; 2. First discharge pipe; 3. Second discharge pipe; 4. Top frame; 5. Adjustment component; 6. Monitoring component; 7. Support frame; 8. Fixed plate; 9. Vibrator; 10. Inclined plate; 501. Hydraulic cylinder; 502. Moving plate; 503. Baffle; 504. Gasket; 601. Mounting plate; 602. Laser emitter; 603. Laser receiver; 604. Vertical plate; 605. Horizontal plate; 606. Lead screw; 607. Threaded sleeve. Detailed Implementation
[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] Refer to the instruction manual appendix Figure 1-5 The biomass boiler feed inlet blockage monitoring device of this embodiment includes a feed box 1 and a first discharge pipe 2, one end of which is fixedly connected to the feed box 1. A monitoring component 6 is provided on the first discharge pipe 2. The monitoring component 6 includes two mounting plates 601, a laser emitter 602, a laser receiver 603, two vertical plates 604, a horizontal plate 605, a lead screw 606, and two threaded sleeves 607. The opposite sides of the two mounting plates 601 are fixedly connected to the laser emitter 602 and the laser receiver 603, respectively. The top ends of the two mounting plates 601 are fixedly connected to the two vertical plates 604, respectively. The top ends of the two vertical plates 604 penetrate the first discharge pipe 2 and are fixedly connected to the horizontal plate 605. The bottom end of the lead screw 606 penetrates the horizontal plate 605 and is fixedly connected to the first discharge pipe 2. The two threaded sleeves 607 are movably sleeved on the lead screw 606, and the opposite sides of the two threaded sleeves 607 are in contact with the horizontal plate 605.
[0030] Furthermore, an inclined plate 10 is fixedly connected to the bottom of the feed box 1, and a vibrator 9 is fixedly installed at the center of the bottom of the feed box 1.
[0031] Furthermore, a fixed plate 8 is movably provided at the bottom of the vibrator 9, and two support frames 7 are fixedly connected to the top of the fixed plate 8. The top of both support frames 7 are fixedly connected to the feed box 1. A second discharge pipe 3 is fixedly connected to the bottom of the first discharge pipe 2 and near one side edge.
[0032] Furthermore, a top frame 4 is fixedly installed at the top of the first discharge pipe 2 and near one side edge. An adjustment component 5 is provided on the top frame 4. The adjustment component 5 includes a hydraulic cylinder 501, a moving plate 502, a baffle 503, and a gasket 504. The hydraulic cylinder 501 is fixedly installed at the top of the top frame 4, and the piston rod end of the hydraulic cylinder 501 is fixedly connected to the moving plate 502. The top of the baffle 503 is fixedly connected to the moving plate 502. The gasket 504 is fixedly sleeved on the moving plate 502, and the outer side of the gasket 504 is in contact with the second discharge pipe 3.
[0033] The feed box 1 is fixed by bolts to the fixing plate 8. The material enters the biomass boiler horizontally through the first discharge pipe 2. The hydraulic cylinder 501 is activated, and the piston rod on the hydraulic cylinder 501 retracts, driving the moving plate 502 to move upward, thereby driving the baffle 503 to move upward. The moving plate 502 and the baffle 503 block one side of the first discharge pipe 2, and the material can enter the biomass boiler vertically through the second discharge pipe 3. Similarly, the piston rod on the hydraulic cylinder 501 extends, driving the moving plate 502 and the baffle 503 to move downward. The feeding is convenient and has a wide range of applications. When the vertical movement distance of the moving plate 502 and the baffle 503 is short, the moving plate 502 can squeeze the material in the first discharge pipe 2 to prevent the material from blocking the first discharge pipe 2. At the same time, the gasket 504 can improve the sealing between the baffle 503 and the second discharge pipe 3.
[0034] The usage method of this embodiment is as follows:
[0035] In operation, the worker pours the material into the feed hopper 1. The inclined plate 10 guides the material into the first discharge pipe 2. The laser emitter 602 is then activated, emitting a laser beam. The laser receiver 603 receives the laser beam emitted by the laser emitter 602. When material accumulates and blocks the first discharge pipe 2, it obstructs the laser beam emitted by the laser emitter 602, preventing the laser receiver 603 from receiving the beam. At this point, the external alarm will sound, reminding the worker to promptly clear the material from the first discharge pipe 2 and rotate the threaded sleeve 607 away from the horizontal plate 60. 5. This releases the screw 606 from the horizontal plate 605, allowing the horizontal plate 605 to move vertically downwards. This causes the two vertical plates 604 and the two mounting plates 601 to move vertically downwards, which in turn causes the laser emitter 602 and the laser receiver 603 to move vertically downwards. The height of the laser emitter 602 and the laser receiver 603 can be adjusted as needed. Similarly, the horizontal plate 605 is pressed and fixed by the two threaded sleeves 607. The operation is simple and convenient for real-time monitoring of the feed inlet, effectively improving production efficiency. At the same time, the vibrator 9 is started, which vibrates the material in the feed box 1.
[0036] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A biomass boiler feed inlet blockage monitoring device, comprising a feed box (1) and a first discharge pipe (2), wherein one end of the first discharge pipe (2) is fixedly connected to the feed box (1), characterized in that: A monitoring component (6) is provided on the first discharge pipe (2). The monitoring component (6) includes two mounting plates (601), a laser emitter (602), a laser receiver (603), two vertical plates (604), a horizontal plate (605), a lead screw (606), and two threaded sleeves (607). The two mounting plates (601) are fixedly connected to the laser emitter (602) and the laser receiver (603) on opposite sides, respectively. The tops of the two mounting plates (601) are fixedly connected to the two vertical plates (604), respectively. The tops of the two vertical plates (604) penetrate the first discharge pipe (2) and are fixedly connected to the horizontal plate (605). The bottom end of the lead screw (606) penetrates the horizontal plate (605) and is fixedly connected to the first discharge pipe (2). The two threaded sleeves (607) are movably sleeved on the lead screw (606), and the opposite sides of the two threaded sleeves (607) are in contact with the horizontal plate (605).
2. The biomass boiler feed inlet blockage monitoring device according to claim 1, characterized in that: An inclined plate (10) is fixedly connected to the bottom of the feed box (1).
3. The biomass boiler feed inlet blockage monitoring device according to claim 1, characterized in that: A vibrator (9) is fixedly installed at the center of the bottom end of the feed box (1).
4. The biomass boiler feed inlet blockage monitoring device according to claim 3, characterized in that: The bottom of the vibrator (9) is movably provided with a fixing plate (8), and the top of the fixing plate (8) is fixedly connected to two support frames (7), and the top of the two support frames (7) is fixedly connected to the feed box (1).
5. The biomass boiler feed inlet blockage monitoring device according to claim 1, characterized in that: The bottom end of the first discharge pipe (2) and near one side edge are fixedly connected to the second discharge pipe (3).
6. The biomass boiler feed inlet blockage monitoring device according to claim 1, characterized in that: A top frame (4) is fixedly installed at the top of the first discharge pipe (2) and near one side edge. An adjustment component (5) is provided on the top frame (4). The adjustment component (5) includes a hydraulic cylinder (501), a moving plate (502), a baffle (503), and a gasket (504).
7. The biomass boiler feed inlet blockage monitoring device according to claim 6, characterized in that: The hydraulic cylinder (501) is fixedly installed at the top of the top frame (4), and the piston rod end of the hydraulic cylinder (501) is fixedly connected to the moving plate (502). The top of the baffle (503) is fixedly connected to the moving plate (502). The gasket (504) is fixedly sleeved on the moving plate (502), and the outer side of the gasket (504) is in contact with the second discharge pipe (3).
Citation Information
Patent Citations
Feeding mechanism of biomass boiler
CN212618412U