Boiler feeding device for burning straw

By designing a conical feed hopper and an anti-clogging knocking system, the problem of straw material blockage was solved, enabling stable straw conveying and continuous boiler combustion, and improving the reliability and energy efficiency of the feeding device.

CN223924871UActive Publication Date: 2026-02-17LIAONING PUTIAN LVNENG TECH CO LTD
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Patent Information

Application Number
CN202520496421.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-02-17
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

In existing straw-burning boiler feeding devices, the straw material cannot fall smoothly under its own weight, which easily clogs the feed hopper, causing interruptions in the feeding process and affecting the boiler's operating efficiency and stability.

Method used

The design incorporates a conical feed hopper and an anti-clogging hammering system. The system utilizes the weight of the straw to slide down the feed hopper and, through the coordinated operation of the drive unit, linkage unit, sliding block, linkage rotating rod, power unit, stabilizing block, and spring, constructs an anti-clogging hammering system to ensure that the material enters the feeder smoothly. At the same time, rubber pads protect the hammers from damage to the feed hopper.

Benefits of technology

It improves material conveying efficiency and the stability of the feeding device, prevents blockages, ensures continuous boiler combustion, and reduces equipment maintenance costs and energy waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a straw burning boiler feeding device which comprises a feeding machine, a feeding hopper is fixed to the top end of one side of the feeding machine, a driving piece is fixed to one side wall of the feeding hopper, a linkage piece is fixed to the outer wall of the bottom end of the driving piece, the outer wall of the driving piece is in threaded connection with a sliding block, and the sliding block is in threaded connection with the feeding machine. A through hole is formed in one side of the sliding block, a linkage rotating rod is rotationally connected into the through hole through a bearing, a power piece is fixed to the outer wall of one side of the linkage rotating rod, a stable fixing block is fixed to the outer wall of the linkage rotating rod, a spring is fixed to one end of the stable fixing block, and a hammer head is fixed to the other end of the spring. The feeding hopper is designed to be conical, straw materials can be effectively contained, the materials can naturally slide to the top end of the feeding machine by means of the gravity of the materials through the conical inclined face of the feeding hopper, the conveying efficiency of the materials is greatly improved, the smoothness and continuity of the feeding process are guaranteed, and sufficient straw fuel supply is provided for stable combustion of a boiler.
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Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically to a boiler feeding device for burning straw. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy. The original meaning of "boiler" refers to a water-filled container heated over a fire, while "furnace" refers to the place where fuel is burned. A boiler consists of two main parts: the boiler and the furnace. The hot water or steam produced in a boiler can directly provide the heat energy needed for industrial production and people's lives. It can also be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. Boilers that provide hot water are called hot water boilers, which are mainly used for domestic purposes, with some applications in industrial production. Boilers that produce steam are called steam boilers, often simply referred to as boilers, and are mostly used in thermal power plants, ships, locomotives, and industrial and mining enterprises.

[0003] In current straw-burning boiler feeding devices, the material cannot smoothly slide down to the top of the feeder by its own gravity, causing the feeding process to be easily interrupted. This makes it impossible to continuously provide sufficient straw fuel for stable combustion in the boiler, which greatly affects the boiler's operating efficiency. Due to the lack of an effective anti-clogging mechanism, straw material is very easy to accumulate and clog in the feed hopper, seriously hindering the material from entering the feeder and affecting the smoothness of the entire feeding process. Once a blockage occurs, it not only requires frequent manual cleaning, consuming a lot of manpower and resources, but also causes the feeding device to be shut down for a long time, reducing production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a boiler feeding device for burning straw, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a boiler feeding device for burning straw, comprising a feeder, a feeding hopper fixed to the top of one side of the feeder, a driving component fixed to one side wall of the feeding hopper, a linkage component fixed to the bottom outer wall of the driving component, a sliding block threadedly connected to the outer wall of the driving component, a through hole formed inside one side of the sliding block, a linkage rod rotatably connected to the through hole via a bearing, a power component fixed to one side outer wall of the linkage rod, a stabilizing block fixed to the outer wall of the linkage rod, a spring fixed to one end of the stabilizing block, and a hammer fixed to the other end of the spring.

[0006] Preferably, the outer wall of the hammer is covered with a rubber pad to prevent the hammer from damaging the feed hopper.

[0007] Preferably, the driving component includes a stabilizing support frame, which is fixedly connected to one side wall of the feed hopper. A drive motor is fixed inside the stabilizing support frame, and a drive screw is fixed to the bottom end of the output shaft of the drive motor.

[0008] Preferably, the outer wall of the drive screw is machined with reverse double threads, thereby enabling the sliding block to move up and down.

[0009] Preferably, the linkage component includes a driven turntable, the driven turntable is fixed to the outer wall of the bottom end of the drive screw, and a linkage belt is wound around the outer wall of the driven turntable.

[0010] Preferably, the power component includes a drive gear, which is fixed to the outer wall of one end of the linkage rod. The outer wall of the drive gear meshes with a limiting rack, and the limiting rack is fixedly connected to one side wall of the feed hopper.

[0011] Preferably, one side of the limiting rack is provided with teeth that match the outer wall of the drive gear, thereby enabling the drive gear to rotate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The feed hopper is designed in a conical shape, which not only effectively holds straw materials, but also allows the materials to slide naturally to the top of the feeder by their own gravity, greatly improving the material conveying efficiency, ensuring the smoothness and continuity of the feeding process, and providing a sufficient supply of straw fuel for stable combustion in the boiler.

[0014] Through the coordinated operation of the driving components, linkage components, sliding blocks, linkage rotating rods, power components, stabilizing blocks, springs, and hammers, an anti-clogging impact system is constructed. The drive motor drives the drive screw to rotate, and the reverse double threads on its outer wall drive the sliding block to move up and down. While the sliding block drives the linkage rotating rod to move up and down, the drive gear and the limit rack mesh with each other, causing the linkage rotating rod to rotate, which in turn drives the stabilizing block to rotate. During the rotation of the stabilizing block, the spring uses elastic potential energy to drive the hammers to regularly hammer the wall of the feed hopper, causing the feed hopper to vibrate. This effectively prevents the straw material from accumulating and clogging in the feed hopper, ensuring that the material continuously and stably enters the feeder, greatly improving the reliability and stability of the feeding device.

[0015] The outer wall of the hammer is wrapped with a rubber pad, which plays a good buffering role when the hammer hits the hopper wall, effectively avoiding direct impact damage to the hopper, extending the service life of the hopper, and reducing equipment maintenance costs. Through the reverse double thread design of the drive screw and the ingenious transmission of the linkage, the efficient transmission and rational utilization of power are achieved, reducing energy waste and improving the energy utilization efficiency of the entire feeding device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A frontal view of the connection structure;

[0018] Figure 3 for Figure 1 A side view diagram of the connection structure;

[0019] Figure 4 for Figure 2 Enlarged connection structure diagram at point A;

[0020] Figure 5 for Figure 3 A magnified schematic diagram of the connection structure at point B.

[0021] In the diagram: 1. Feeder, 2. Feed hopper, 3. Stabilizing support frame, 4. Drive motor, 5. Drive screw, 6. Driven turntable, 7. Linkage belt, 8. Sliding block, 9. Linkage rotating rod, 10. Drive gear, 11. Limit rack, 12. Stabilizing block, 13. Spring, 14. Hammer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5This utility model provides a technical solution: a straw-burning boiler feeding device, including a feeder 1. A feed hopper 2 is fixed to the top of one side of the feeder 1. The feed hopper 2 is conical in shape and can hold straw material. Simultaneously, its conical inclined surface allows the material to fall to the top of the feeder 1. A driving component is fixed to one side wall of the feed hopper 2. A linkage component is fixed to the outer wall of the bottom end of the driving component. A sliding block 8 is threadedly connected to the outer wall of the driving component. The inner wall of the sliding block 8 is threadedly connected to the outer wall of the driving screw 5. The driving screw 5 drives a linkage rod 9 to move up and down. A through hole is formed inside one side of the sliding block 8. The linkage rod 9 is rotatably connected to the through hole via a bearing. The linkage rod 9 is driven by a driving gear 1. The drive of 0 drives the stabilizing block 12 to rotate. A power component is fixed on one side of the outer wall of the linkage rod 9. The stabilizing block 12 is fixed on the outer wall of the linkage rod 9. The stabilizing block 12 can provide a connection point for the spring 13 and drive it to move. One end of the stabilizing block 12 is fixed with the spring 13. The spring 13 buffers the hammer head 14 with its own elasticity and can drive it to rotate to hammer the feed hopper 2 to make it vibrate. The other end of the spring 13 is fixed with the hammer head 14. The hammer head 14 moves downward under the drive of the linkage rod 9 to hammer the feed hopper 2 to make the straw material inside vibrate and facilitate the subsequent feeding process. The outer wall of the hammer head 14 is covered with a rubber pad to prevent the hammer head 14 from damaging the feed hopper 2.

[0024] The driving component includes a stabilizing support frame 3, which is fixedly connected to one side wall of the feed hopper 2. The stabilizing support frame 3 supports the drive motor 4. The drive motor 4 is fixed inside the stabilizing support frame 3. The drive motor 4 provides power to the drive screw 5. The drive screw 5 is fixed at the bottom of the output shaft of the drive motor 4. The drive screw 5 is powered by the drive motor 4 to drive the sliding block 8 to move up and down. The outer wall of the drive screw 5 is machined with reverse double threads, which enables it to drive the sliding block 8 to move up and down.

[0025] The linkage includes a driven turntable 6. The driven turntable 6 is fixed to the outer wall of the bottom end of the drive screw 5. The driven turntable 6 drives the linkage belt 7 to rotate through the drive screw 5. The linkage belt 7 is wound around the outer wall of the driven turntable 6. The linkage belt 7 drives the drive screw 5 on the other side to rotate through the drive of the driven turntable 6.

[0026] The power component includes a drive gear 10, which is fixed to the outer wall of one end of the linkage rod 9. The drive gear 10 is fixed to the outer wall of one end of the linkage rod 9, so that the drive gear 10 will interact with the limiting gear 11 through the linkage rod 9. The outer wall of the drive gear 10 meshes with the limiting rack 11, and the limiting rack 11 is fixedly connected to one side wall of the feed hopper 2. The limiting rack 11 and the drive gear 10 mesh with each other and drive the drive gear 10 to rotate through the linkage rod 9. One side of the limiting rack 11 is provided with teeth that match the outer wall of the drive gear 10, so that the drive gear 10 can be driven to rotate.

[0027] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0028] The drive motor 4 is started by an external control unit. The drive motor 4 drives the drive screw 5 to rotate through its output shaft. The drive screw 5 drives the driven turntable 6 to rotate. The driven turntable 6 drives the linkage belt 7 to rotate. The linkage belt 7 drives the drive screw 5 on the other side to rotate. The rotation of the drive screw 5 drives the sliding block 8 to move up and down through the reverse double thread set on its outer wall. The sliding block 8 drives the linkage rod 9 to move down. When the linkage rod 9 moves down, the drive gear 10 also moves down. At the same time, since the outer wall of the drive gear 10 meshes with the limit rack 11, the drive gear 10 will roll on the limit rack 11 when it moves down, thereby driving the drive gear 10 to rotate. When the drive gear 10 rotates, the linkage rod 9 will also rotate. The linkage rod 9 drives the stabilizing block 12 to rotate. When the stabilizing block 12 drives the spring 13 to rotate, the spring 13 will undergo elastic deformation. The spring 13 drives the hammer head 14 to move down and hit the outer wall of the feed hopper 2. During the impact, the straw at the bottom of the feed hopper 2 will be shaken and sent to the ground, which will facilitate the subsequent feeding process.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler feeding device for burning straw, comprising a feeder (1), characterized in that, The feeder (1) has a feeding hopper (2) fixed at one top side. A driving component is fixed on one side wall of the feeding hopper (2). A linkage component is fixed on the bottom outer wall of the driving component. A sliding block (8) is threadedly connected to the outer wall of the driving component. A through hole is formed inside one side of the sliding block (8). A linkage rod (9) is rotatably connected to the through hole through a bearing. A power component is fixed on one side outer wall of the linkage rod (9). A stabilizing block (12) is fixed on the outer wall of the linkage rod (9). A spring (13) is fixed at one end of the stabilizing block (12). A hammer (14) is fixed at the other end of the spring (13).

2. The boiler feeding device for burning straw according to claim 1, characterized in that, The outer wall of the hammer (14) is covered with a rubber pad, which prevents the hammer (14) from damaging the feed hopper (2).

3. The boiler feeding device for burning straw according to claim 1, characterized in that, The driving component includes a stabilizing support frame (3), which is fixedly connected to one side wall of the feed hopper (2). A drive motor (4) is fixed inside the stabilizing support frame (3), and a drive screw (5) is fixed at the bottom of the output shaft of the drive motor (4).

4. A boiler feeding device for burning straw according to claim 3, characterized in that, The outer wall of the drive screw (5) is machined with reverse double threads, which enables the sliding block (8) to move up and down.

5. A boiler feeding device for burning straw according to claim 3, characterized in that, The linkage component includes a driven turntable (6), the driven turntable (6) is fixed to the outer wall of the bottom end of the drive screw (5), and a linkage belt (7) is wound around the outer wall of the driven turntable (6).

6. A boiler feeding device for burning straw according to claim 1, characterized in that, The power component includes a drive gear (10), which is fixed to the outer wall of one end of the linkage rod (9). The outer wall of the drive gear (10) meshes with a limiting rack (11), and the limiting rack (11) is fixedly connected to one side wall of the feed hopper (2).

7. A boiler feeding device for burning straw according to claim 6, characterized in that, The limiting rack (11) has teeth on one side that match the outer wall of the drive gear (10), thereby enabling the drive gear (10) to rotate.