Energy-saving and environment-friendly layer-burning boiler
The automatic dumping of fuel from the storage tank is achieved by using a motor-driven sprocket and slider system, which solves the problem of time-consuming and labor-intensive fuel addition in existing stoker boilers, improves combustion efficiency and environmental friendliness, and reduces heat loss and pollutant emissions.
Patent Information
- Application Number
- CN202423192845.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The existing stoker-fired boilers require opening the furnace cover and using a shovel to add fuel, which makes the process time-consuming and laborious, and causes heat loss, affecting the quality of boiler use and environmental protection.
The motor drives the sprocket to rotate the lead screw. Through the cooperation of the chain and slider, the fuel in the storage box is automatically poured into the furnace body, avoiding the need to keep the feeding port open for a long time. Combined with the inclined guide pipe, it ensures that the fuel is evenly distributed.
It enables rapid and safe fuel addition, reduces heat loss, improves combustion efficiency and fuel complete combustion, reduces pollutant emissions, and enhances the quality and environmental friendliness of boiler use.
Smart Images

Figure CN223795255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler technology, specifically to an energy-saving and environmentally friendly stoker-fired boiler. Background Technology
[0002] A stoker-fired boiler is an industrial boiler, also known as a flue gas stoker-fired boiler. It utilizes solid fuels for combustion, typically such as coal, wood, or straw. The combustion method is stoker-fired combustion, where the fuel is evenly distributed on the grate, and combustion occurs through natural aeration of the fuel layer and the fuel's own heat. The resulting flue gas is discharged through the boiler's flue, and waste heat can be recovered through equipment such as air preheaters.
[0003] Common stoker-fired boilers include a furnace body, water tank, grate, and blower. In operation, fuel is filled into the furnace body and falls onto the grate surface, then ignited for combustion. However, this method requires continuous fuel replenishment during combustion, which necessitates opening the furnace cover and using a shovel to add coal into the furnace body. This process is time-consuming and labor-intensive, and can easily lead to significant heat loss, reducing the boiler's performance and failing to meet operational requirements. Therefore, an energy-saving and environmentally friendly stoker-fired boiler is proposed. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an energy-saving and environmentally friendly stoker-fired boiler, which solves the technical problem that adding fuel requires opening the furnace cover and using a shovel to add coal into the furnace body, making the entire process time-consuming and labor-intensive.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving and environmentally friendly stoker-fired boiler, comprising:
[0008] The furnace body has a water tank steam mechanism installed at the rear, a bracket installed on the left side of the furnace body, a mounting plate installed at the top of the bracket, and guide rails installed on both the left and right sides of the upper surface of the mounting plate.
[0009] The motor is mounted on the front side of the upper surface of the mounting plate. The top of the mounting plate is connected to the hinge lugs at the position between the guide rail and the motor. A lead screw is inserted into the hinge lug through a bearing.
[0010] A slider is inserted inside the guide rail. All lead screws pass through the inside of the slider. A hinge plate is installed on the top of each slider. An mounting arm is installed on the outside of the hinge plate through a bearing. A support plate is installed on the inside of the mounting arm.
[0011] The storage bin is installed on the top of the support plate. The left end of each lead screw is coaxially mounted with a sprocket. Each sprocket is fitted with a chain. The middle of the outer side of each mounting arm is hinged with a transmission arm through a bearing. The lower right side of the storage bin is connected to a guide pipe.
[0012] Preferably, a furnace opening is provided on the lower front side of the furnace body, and a feeding port is provided at the middle position of the top of the furnace body. A furnace cover is inserted into the top of the feeding port to facilitate the addition of fuel.
[0013] Preferably, a blower is installed on the lower right side of the furnace body, a grate is inserted into the lower part of the inner cavity of the furnace body, and a ring is installed on the top of the furnace cover to facilitate opening the furnace cover by means of a lifting rod.
[0014] Preferably, the bottom of the inner cavity of the storage box is inclined, and the width of the guide pipe is smaller than the diameter of the feeding port to avoid fuel leakage.
[0015] Preferably, the transmission arm is L-shaped, and a mounting ear is hinged to the left side of the transmission arm via a bearing. The bottom of the mounting ear is connected to the upper surface of the mounting plate at a corresponding position.
[0016] Preferably, the right end of the motor rotor is coaxially connected to the sprocket on the corresponding side, and the inner cavity of the guide rail and the slider are both trapezoidal in shape, which improves the stability of the slider when it moves left and right.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, this utility model provides an energy-saving and environmentally friendly stoker-fired boiler, which has the following beneficial effects:
[0019] This energy-saving and environmentally friendly stoker-fired boiler uses a motor to drive a sprocket, which in turn drives a chain to rotate a lead screw. This causes a slider to move a hinge plate, which, in conjunction with a transmission arm, tilts the mounting arm and support plate. This allows fuel from the storage tank to be quickly fed into the furnace body through a feed pipe, avoiding prolonged opening of the boiler's feed port, reducing heat loss. Automatic feeding also eliminates the safety hazards caused by high-temperature flames when the furnace cover is opened. Furthermore, the feed pipe moves laterally during tilting, resulting in more even fuel distribution on the grate, improving combustion efficiency. This improved combustion allows for more complete combustion, reducing the formation of unburned products and contributing to lower boiler emissions, thus enhancing the boiler's quality and environmental friendliness. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the furnace cover and grate structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the top structure of the mounting plate of this utility model;
[0023] Figure 4 This is a schematic diagram of the mounting arm structure of this utility model;
[0024] Figure 5 This is a schematic diagram of the top left side structure of the mounting plate of this utility model;
[0025] Figure 6 This is a schematic diagram of the guide rail structure of this utility model.
[0026] In the diagram: 1. Furnace body; 2. Water tank steam mechanism; 3. Furnace opening; 4. Support; 5. Blower; 6. Mounting plate; 7. Feed port; 8. Furnace cover; 9. Grate; 10. Guide rail; 11. Motor; 12. Hinge ear; 13. Lead screw; 14. Slider; 15. Hinge plate; 16. Mounting arm; 17. Support plate; 18. Storage bin; 19. Sprocket; 20. Chain; 21. Mounting ear; 22. Drive arm; 23. Feed pipe. Detailed Implementation
[0027] 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.
[0028] This utility model provides a technical solution: an energy-saving and environmentally friendly stoker-fired boiler, comprising a furnace body 1, a water tank steam mechanism 2, a furnace opening 3, a support 4, a blower 5, a mounting plate 6, a feeding port 7, a furnace cover 8, a grate 9, a guide rail 10, a motor 11, a hinge lug 12, a lead screw 13, a slider 14, a hinge plate 15, a mounting arm 16, a support plate 17, a storage bin 18, a sprocket 19, a chain 20, a mounting lug 21, a transmission arm 22, and a feed pipe 23.
[0029] Please see Figure 1 A water tank steam mechanism 2 is installed at the rear of the furnace body 1, and a bracket 4 is installed on the left side of the furnace body 1. A mounting plate 6 is installed at the top of the bracket 4. Please refer to [link / reference]. Figure 3 Guide rails 10 are installed on both the left and right sides of the upper surface of the mounting plate 6. Please refer to [link / reference]. Figure 1 A furnace opening 3 is provided on the lower front side of the furnace body 1. Please refer to [link / reference]. Figure 2A feeding port 7 is provided at the top center of the furnace body 1, and a furnace cover 8 is inserted at the top of the feeding port 7. A blower 5 is installed on the lower right side of the furnace body 1, a grate 9 is inserted in the lower part of the inner cavity of the furnace body 1, and a ring is installed at the top of the furnace cover 8.
[0030] Please see Figure 3 and Figure 4 The motor 11 is mounted on the front side of the upper surface of the mounting plate 6. The top of the mounting plate 6 is connected to the hinge lug 12 between the guide rail 10 and the motor 11. The hinge lug 12 is fitted with a lead screw 13 through a bearing.
[0031] Please see Figure 5 and Figure 6 The slider 14 is inserted inside the guide rail 10. The lead screw 13 passes through the inside of the slider 14. The top of the slider 14 is equipped with a hinge plate 15. The outside of the hinge plate 15 is equipped with a mounting arm 16 through a bearing. The inside of the mounting arm 16 is equipped with a support plate 17.
[0032] The storage bin 18 is installed on top of the support plate 17. A sprocket 19 is coaxially mounted on the left end of the lead screw 13, and a chain 20 is fitted around the outside of each sprocket 19. A transmission arm 22 is hinged to the outer middle of the mounting arm 16 via a bearing. A guide pipe 23 is connected to the lower right side of the storage bin 18. The motor 11 drives the rotation of the sprocket 19, which in turn drives the rotation of the lead screw 13 via the chain 20. This causes the slider 14 to move the hinge plate 15, which, in conjunction with the transmission arm 22, tilts the mounting arm 16 and the support plate 17. This allows the fuel inside the storage bin 18 to be poured into the furnace body 1 through the guide pipe 23, achieving rapid feeding and avoiding prolonged opening of the boiler feed port 7, thus reducing heat loss. Automatic feeding also prevents the high-temperature flames caused by opening the furnace cover 8. Safety hazards, and because the guide pipe 23 moves laterally synchronously when tilted, the fuel distribution on the grate 9 can be more uniform, thereby improving the combustion effect and increasing the combustion efficiency. Due to the improved combustion effect, the fuel can burn more completely, reducing the generation of incomplete combustion products, which helps to reduce the emission of pollutants from the boiler, and improves the quality and environmental protection of the boiler. The bottom of the inner cavity of the storage box 18 is inclined, the width of the guide pipe 23 is smaller than the diameter of the feeding port 7, the shape of the transmission arm 22 is L-shaped, and the left side of the transmission arm 22 is hinged to the mounting ear 21 by the bearing. The bottom of the mounting ear 21 is connected to the corresponding position of the upper surface of the mounting plate 6. The right end of the rotor of the motor 11 is coaxially connected to the sprocket 19 on the corresponding side. The inner cavity of the guide rail 10 and the slider 14 are both trapezoidal in shape.
[0033] This design uses a motor 11 to drive the sprocket 19, which in turn drives the lead screw 13 via the chain 20. This causes the slider 14 to move the hinge plate 15, which in turn, with the cooperation of the transmission arm 22, causes the mounting arm 16 and the support plate 17 to tilt. This allows the fuel inside the storage tank 18 to be poured into the furnace body 1 through the feed pipe 23, achieving rapid feeding. This avoids the boiler feed port 7 from being open for a long time, reducing heat loss. The automatic feeding also avoids the safety hazards caused by high-temperature flames when the furnace cover 8 is opened. At the same time, because the feed pipe 23 moves laterally in sync with the tilt, the fuel distribution on the grate 9 is more uniform, thereby improving the combustion effect and increasing the combustion efficiency. Due to the improved combustion effect, the fuel can burn more completely, reducing the generation of incomplete combustion products, which helps to reduce the boiler's pollutant emissions and improves the quality and environmental friendliness of the boiler.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] 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. An energy-saving and environmentally friendly stoker-fired boiler, characterized in that, include: Furnace body (1), a water tank steam mechanism (2) is installed at the rear of the furnace body (1), a bracket (4) is installed on the left side of the furnace body (1), an mounting plate (6) is installed at the top of the bracket (4), and guide rails (10) are installed on both the left and right sides of the upper surface of the mounting plate (6). The motor (11) is mounted on the front side of the upper surface of the mounting plate (6). The top of the mounting plate (6) is connected to the hinge lug (12) between the guide rail (10) and the motor (11). The hinge lug (12) is fitted with a lead screw (13) through a bearing. The slider (14) is inserted inside the guide rail (10). The lead screw (13) passes through the inside of the slider (14). The top of the slider (14) is equipped with a hinge plate (15). The outside of the hinge plate (15) is equipped with a mounting arm (16) through a bearing. The inside of the mounting arm (16) is equipped with a support plate (17). The storage box (18) is installed on the top of the support plate (17). The left end of the lead screw (13) is coaxially equipped with a sprocket (19). The sprocket (19) is fitted with a chain (20). The middle of the outer side of the mounting arm (16) is hinged with a transmission arm (22) through a bearing. The lower right side of the storage box (18) is connected to a guide pipe (23).
2. The energy-saving and environmentally friendly stoker boiler according to claim 1, characterized in that: A furnace opening (3) is provided on the lower front side of the furnace body (1), and a feeding port (7) is provided at the middle position of the top of the furnace body (1). A furnace cover (8) is inserted into the top of the feeding port (7).
3. The energy-saving and environmentally friendly stoker boiler according to claim 2, characterized in that: A blower (5) is installed on the lower right side of the furnace body (1), a grate (9) is inserted into the lower part of the inner cavity of the furnace body (1), and a ring is installed on the top of the furnace cover (8).
4. The energy-saving and environmentally friendly stoker boiler according to claim 1, characterized in that: The bottom of the inner cavity of the storage box (18) is inclined, and the width of the guide pipe (23) is smaller than the diameter of the feeding port (7).
5. The energy-saving and environmentally friendly stoker boiler according to claim 1, characterized in that: The transmission arm (22) is L-shaped. The left side of the transmission arm (22) is hinged with a mounting ear (21) by a bearing. The bottom of the mounting ear (21) is connected to the upper surface of the mounting plate (6) at the corresponding position.
6. The energy-saving and environmentally friendly stoker boiler according to claim 1, characterized in that: The right end of the rotor of the motor (11) is coaxially connected to the sprocket (19) on the corresponding side, and the inner cavity of the guide rail (10) and the slider (14) are both trapezoidal in shape.