Feeding device of biomass hot blast stove
The design of the telescopic feeding cylinder and the top material structure solves the problem of the biomass hot air furnace feeding device occupying space in a limited environment, realizing the compact layout of the equipment and efficient feeding, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
The existing spiral feeding device of biomass hot air furnace has a fixed length and cannot be flexibly adjusted. This results in a large space being occupied in a limited production environment, causing resource waste and making it easy for biomass fuel to accumulate, which affects feeding efficiency.
It adopts a telescopic feeding cylinder structure and a top material structure. The outer feeding cylinder can be retracted to save space. An electric cylinder is used to push the telescopic rod and push rod alternately to push the material, preventing fuel accumulation and improving feeding efficiency.
It achieves a reasonable layout in a production workshop with limited space, reduces equipment interference, and improves the production efficiency of biomass hot air furnaces and the practicality of feeding devices.
Smart Images

Figure CN224094502U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feeding equipment technology, specifically to a feeding device for a biomass hot air furnace. Background Technology
[0002] A biomass hot air furnace is a type of biomass boiler. It is a drying device that uses biomass as fuel. Its main functions include drying and heating. A biomass hot air furnace is a thermal energy device that integrates functions such as combustion, heat exchange, dust removal, circulating air, and exhaust.
[0003] A search revealed an application with application number CN202120180132.2, entitled "A Screw Feeder for a Biomass Hot Blast Furnace," which relates to the field of screw feeders. This utility model, through the combined use of a pusher and a cleaning brush, can remove biomass residues on the lower surface of the feeding pipe and on the surface of the screw blades from the inside of the feeding pipe. This effectively cleans up residual materials in the feeding pipe, increases the utilization rate of biomass, and fully utilizes biomass materials, thereby improving the production efficiency of the hot blast furnace.
[0004] A significant limitation of screw feeders is that their conveying length is usually fixed and cannot be flexibly adjusted according to actual production needs. In some production environments with limited space, fixed-length screw feeders will occupy a large space when not in use, resulting in a waste of space resources.
[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] To address the issues raised in the appeal, this utility model provides a biomass hot air furnace feeding device, thereby resolving the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To address the aforementioned problems, the specific technical solution adopted by this utility model is as follows:
[0010] A biomass hot air furnace feeding device includes a feeding box, with a feeding inner cylinder connected to the bottom of the feeding box. A conveying paddle is installed on the inner side of the feeding inner cylinder, and a drive wheel is provided on the surface of the conveying paddle. The drive wheel is connected to the drive wheel at the output end of a drive motor via a belt. A feeding outer cylinder is sleeved on the outer side of the feeding inner cylinder, and a discharge pipe is provided on the lower surface of the feeding outer cylinder. A guide strip is provided on the outer side of the feeding inner cylinder, and a guide groove for use with the guide strip is opened on the inner side of the feeding outer cylinder. A fixing box is provided on the outer side of the feeding outer cylinder, and a lead screw is threadedly connected to the surface of the fixing box. A handle is provided on the surface of the lead screw, and a limit block is fixed at the end of the lead screw.
[0011] Furthermore, the inside of the feeding box is equipped with a sealing box, and the inside of the sealing box is equipped with a telescopic rod that is slidably connected. An electric cylinder is installed at the end of the telescopic rod, a push rod is provided on the lower surface of the telescopic rod, and a rack is provided on the side surface of the telescopic rod. The rack and a gear are meshed and connected, and the gear is connected to the sealing box through a rotating shaft.
[0012] Furthermore, the feeding box and the inner feeding cylinder are connected by a flange structure.
[0013] Furthermore, the upper surface of the sealed box is inclined.
[0014] Furthermore, the side surface of the feeding box is provided with support legs.
[0015] Furthermore, a controller is provided on the side surface of the feeding box.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the present invention provides a feeding device for a biomass hot air furnace, which has the following beneficial effects:
[0018] (1) This utility model adopts a telescopic feeding cylinder. When the feeding is not required, the outer feeding cylinder can be slid along the guide strip towards the inner feeding cylinder to retract it, reducing the space occupied by the equipment. This is especially important for production workshops with limited space, as it can effectively utilize space, avoid the equipment from interfering with production operations and other equipment, and make the workshop layout more compact and reasonable.
[0019] (2) This utility model adopts a top material structure. During the feeding process, the electric cylinder pushes the telescopic rod, which in turn pushes the push rod to push the biomass fuel downward. With the cooperation of gears and racks, the two sets of push rods alternately perform the top material operation, thereby breaking the arch of the biomass fuel and preventing the biomass fuel from accumulating in the feeding box and being unable to carry out the feeding operation effectively, which greatly improves the practicality of the device. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the biomass hot air furnace feeding device proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the feeding box of this utility model;
[0023] Figure 3 This is a schematic diagram of the internal structure of the fixing box of this utility model.
[0024] In the picture:
[0025] 1. Feeding box; 2. Inner feeding cylinder; 3. Outer feeding cylinder; 4. Discharge pipe; 5. Guide strip; 6. Fixing box; 7. Lead screw; 8. Handle; 9. Limit block; 10. Conveyor paddle; 11. Drive wheel; 12. Belt; 13. Drive motor; 14. Support leg; 15. Controller; 16. Sealing box; 17. Telescopic rod; 18. Electric cylinder; 19. Push rod; 20. Gear; 21. Rack. Detailed Implementation
[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0027] According to an embodiment of the present invention, a feeding device for a biomass hot air furnace is provided.
[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3As shown, the biomass hot air furnace feeding device according to an embodiment of the present invention includes a feeding box 1, a feeding inner cylinder 2 connected to the lower part of the feeding box 1, a conveying paddle 10 installed on the inner side of the feeding inner cylinder 2, and a transmission wheel 11 provided on the surface of the conveying paddle 10. The transmission wheel 11 is connected to the transmission wheel 11 at the output end of the transmission motor 13 through a belt 12. A feeding outer cylinder 3 is sleeved on the outer side of the feeding inner cylinder 2, and a discharge pipe 4 is provided on the lower surface of the feeding outer cylinder 3. A guide strip 5 is provided on the outer side of the feeding inner cylinder 2, and a guide groove for use with the guide strip 5 is opened on the inner side of the feeding outer cylinder 3. A fixing box 6 is provided on the outer side of the feeding outer cylinder 3, and a screw rod 7 is threadedly connected to the surface of the fixing box 6. A handle 8 is provided on the surface of the screw rod 7, and a limit block 9 is fixed at the end of the screw rod 7.
[0029] In one embodiment, a telescopic feeding cylinder is used. When conveying is not required, the outer feeding cylinder 3 can be slid along the guide bar 5 towards the inner feeding cylinder 2 to retract it, reducing the space occupied by the equipment. This is especially important for production workshops with limited space, as it can effectively utilize space, avoid interference between the equipment and production operations and other equipment, and make the workshop layout more compact and reasonable.
[0030] Specifically, the inside of the feeding box 1 is equipped with a sealing box 16, and the inside of the sealing box 16 is equipped with a telescopic rod 17 that is slidably connected. An electric cylinder 18 is installed at the end of the telescopic rod 17, a push rod 19 is provided on the lower surface of the telescopic rod 17, and a rack 21 is provided on the side surface of the telescopic rod 17. The rack 21 and the gear 20 are meshed and connected. The gear 20 is connected to the sealing box 16 through a rotating shaft.
[0031] In one embodiment, during the feeding process, the electric cylinder 18 pushes the telescopic rod 17, which in turn pushes the push rod 19 to push the biomass fuel downward. With the cooperation of the gear 20 and the rack 21, the two sets of push rods 19 alternately perform the feeding operation, thereby breaking the arch of the biomass fuel and preventing the biomass fuel from accumulating in the feeding box 1 and being unable to carry out the feeding operation effectively, which greatly improves the practicality of the device.
[0032] Specifically, the feeding box 1 and the inner feeding cylinder 2 are connected by a flange structure.
[0033] In one embodiment, it is convenient to install or disassemble the feeding box 1 and the inner feeding cylinder 2, thereby facilitating their maintenance.
[0034] Specifically, the upper surface of the sealed box 16 is inclined.
[0035] In one embodiment, biomass fuel slides down to both sides along the upper surface of the sealed box 16 to avoid accumulating on the upper surface of the sealed box 16.
[0036] Specifically, the side surface of the feeding box 1 is provided with support legs 14.
[0037] In one embodiment, a support leg 14 is provided to support the feeding device.
[0038] Specifically, a controller 15 is provided on the side surface of the feeding box 1.
[0039] In one embodiment, controller 15 is used to control the feeding device.
[0040] Working principle: When no conveying is needed, the outer feeding cylinder 3 can be slid along the guide bar 5 towards the inner feeding cylinder 2 to retract it, reducing the space occupied by the equipment. This is especially important for production workshops with limited space, as it can effectively utilize space and avoid the equipment interfering with production operations and other equipment, making the workshop layout more compact and reasonable. During the feeding process, the electric cylinder 18 pushes the telescopic rod 17, which in turn pushes the push rod 19 to push the biomass fuel downward. With the cooperation of the gear 20 and the rack 21, the two sets of push rods 19 alternately perform the pushing operation, thereby breaking the arch of the biomass fuel and preventing the biomass fuel from accumulating in the feeding box 1, which would prevent the feeding operation from being ineffective, greatly improving the practicality of the device.
[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 hot air furnace feeding device, comprising a feeding box (1), characterized in that, The feeding box (1) is connected to the lower part of the feeding inner cylinder (2). The inner side of the feeding inner cylinder (2) is equipped with a conveying paddle (10), and the surface of the conveying paddle (10) is provided with a transmission wheel (11). The transmission wheel (11) is connected to the transmission wheel (11) at the output end of the transmission motor (13) through a belt (12). The outer side of the feeding inner cylinder (2) is fitted with a feeding outer cylinder (3), and the lower surface of the feeding outer cylinder (3) is provided with a discharge pipe (4). The outer side of the feeding inner cylinder (2) is provided with a guide strip (5). The inner side of the feeding outer cylinder (3) is provided with a guide groove for use with the guide strip (5). The outer side of the feeding outer cylinder (3) is provided with a fixing box (6). The surface of the fixing box (6) is threaded with a lead screw (7). The surface of the lead screw (7) is provided with a handle (8). The end of the lead screw (7) is fixed with a limit block (9).
2. The biomass hot air furnace feeding device according to claim 1, characterized in that, The feeding box (1) is equipped with a sealing box (16) inside. The sealing box (16) is equipped with a telescopic rod (17) that is slidably connected inside. An electric cylinder (18) is installed at the end of the telescopic rod (17). A push rod (19) is provided on the lower surface of the telescopic rod (17). A rack (21) is provided on the side surface of the telescopic rod (17). The rack (21) and a gear (20) are meshed and connected. The gear (20) is connected to the sealing box (16) through a rotating shaft.
3. The biomass hot air furnace feeding device according to claim 2, characterized in that, The feeding box (1) and the inner feeding cylinder (2) are connected by a flange structure.
4. The biomass hot air furnace feeding device according to claim 3, characterized in that, The upper surface of the sealed box (16) is inclined.
5. The biomass hot air furnace feeding device according to claim 4, characterized in that, The side surface of the feeding box (1) is provided with support legs (14).
6. The biomass hot air furnace feeding device according to claim 5, characterized in that, The side surface of the feeding box (1) is provided with a controller (15).
Citation Information
Patent Citations
Spiral feeder for biomass hot blast stove
CN214841670U