Feeding mechanism of three-section type grate furnace

By improving the combined use of filtration, crushing and cleaning mechanisms, the problems of waste liquid affecting incineration efficiency and waste size differences have been solved, achieving separation of waste liquid and uniformity of waste size, thus improving incineration quality and efficiency.

CN224150944UActive Publication Date: 2026-04-21LIAONING FUKUANG SANFENG YIJIN ENVIRONMENTAL PROTECTION ENERGY DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAONING FUKUANG SANFENG YIJIN ENVIRONMENTAL PROTECTION ENERGY DEVELOPMENT CO LTD
Filing Date
2025-02-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing three-section grate furnaces, the presence of liquid waste affects incineration efficiency during the waste incineration process, and the difference in waste size leads to uneven incineration efficiency and quality.

Method used

The system employs a lifting belt to filter waste liquid, a crushing mechanism to crush waste, and a sweeping mechanism to clean up waste. Combined with motor drive and hydraulic control, it achieves waste pretreatment, ensuring waste liquid separation and uniform size.

Benefits of technology

It achieves effective removal of waste liquid and uniformity of waste size, improving incineration efficiency and treatment efficiency, and enhancing incineration quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a feeding mechanism of a three-section type grate furnace, which belongs to the technical field of three-section type grate furnaces and comprises a bottom plate, two supporting seats are fixedly connected to the top surface of the bottom plate, a lifting box is rotatably connected between the two supporting seats, an electric hydraulic rod is fixedly mounted on the top surface of the bottom plate, and the lifting box is rotatably connected between the two supporting seats. A pushing column is fixedly connected to the top end of the electric hydraulic rod, the top face of the pushing column is attached to the bottom face of the lifting box, and two conveying rollers are rotationally connected to an inner cavity of the lifting box. The first motor is used for driving the conveying roller and the lifting belt to rotate clockwise, garbage is lifted through rotation of the lifting belt so that the garbage can be added into a feeding opening of the grate furnace, garbage liquid in the garbage is filtered through the filtering holes in the lifting belt, and the filtered garbage liquid is discharged from the liquid discharging pipe. And therefore, the garbage liquid in the garbage is removed.
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Description

Technical Field

[0001] This utility model relates to the field of three-section grate furnace technology, and more specifically, to a feeding mechanism for a three-section grate furnace. Background Technology

[0002] With the acceleration of urbanization, the amount of municipal solid waste generated is increasing daily, posing a severe challenge to environmental protection and waste management systems. Traditional methods such as landfill and composting suffer from problems such as large land occupation and serious pollution. Incineration technology, as an efficient, volume-reducing, and resource-recovering waste treatment method, is gradually becoming an important choice in the waste management field. Among them, the three-stage grate furnace process has attracted much attention due to its high efficiency, cleanliness, and resource recovery characteristics in waste incineration. When waste is incinerated using a three-stage grate furnace, it is necessary to continuously feed the waste to the inlet. Some liquid waste may be present in the waste, which also affects the incineration. In addition, the size of the waste varies, resulting in different incineration times, affecting the efficiency and quality of waste incineration. Therefore, we propose a feeding mechanism for a three-stage grate furnace. Utility Model Content

[0003] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a feeding mechanism for a three-section grate furnace.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A feeding mechanism for a three-section grate furnace includes a base plate. Two support seats are fixedly connected to the top surface of the base plate, and a lifting box is rotatably connected between the two support seats. An electro-hydraulic rod is fixedly installed on the top surface of the base plate, and a push column is fixedly connected to the top end of the electro-hydraulic rod. The top surface of the push column is in contact with the bottom surface of the lifting box. Two conveying rollers are rotatably connected to the inner cavity of the lifting box, and a lifting belt is driven between the two conveying rollers. Multiple filter holes are opened on the outer side of the lifting belt. A first motor is fixedly installed on the outer side of the lifting box, and the output shaft of the first motor is connected to one end of the shaft of a conveying roller. A feeding hopper is provided at the lower part of the top of the lifting box, and a cleaning mechanism is provided on the feeding hopper. A crushing mechanism is provided at the top of the bottom of the lifting box, and a drain pipe is fixedly sleeved at the bottom of the lifting box.

[0006] As a preferred embodiment of this utility model, the crushing mechanism includes a crushing box fixedly connected to the top of the bottom end of the lifting box. Two crushing rods are rotatably connected to the inner cavity of the crushing box. Multiple crushing blades are fixedly connected to the outer sides of the two crushing rods respectively. Two second motors are fixedly installed on the end face of the crushing box, and the output shafts of the two second motors are respectively connected to the ends of the two crushing rods.

[0007] As a preferred embodiment of this utility model, the cleaning mechanism includes two support blocks fixedly connected to the top surface of the feed hopper, a cleaning rod rotatably connected between the two support blocks, a plurality of cleaning brushes fixedly connected to the outer side of the cleaning rod, and a third motor fixedly installed on the outer side of one of the support blocks, the output shaft of the third motor being connected to the end of the cleaning rod.

[0008] As a preferred embodiment of this utility model, a plurality of self-locking casters are fixedly installed on the bottom surface of the base plate.

[0009] As a preferred embodiment of this utility model, a control panel is fixedly installed on the outer side of the lifting box, and the control panel is electrically connected to the second motor, the first motor, the third motor, and the electric hydraulic rod.

[0010] In a preferred embodiment of this utility model, the inner wall of the lifting box and the side of the lifting belt are fitted together.

[0011] The advantages of this utility model are:

[0012] (1) In this utility model, the first motor drives the conveying roller and the lifting belt to rotate clockwise. The rotation of the lifting belt lifts the garbage, so that the garbage is added into the grate furnace feed port. The filter holes on the lifting belt filter the garbage liquid in the garbage. The filtered garbage liquid is discharged from the drain pipe, thereby removing the garbage liquid in the garbage.

[0013] (2) In this utility model, by using the crushing box, crushing rod, crushing blade and second motor in combination, the two second motors drive the two crushing rods and two sets of crushing blades to rotate, and the crushing blades crush the garbage put into the crushing box, so that the larger volume of garbage becomes smaller, which is convenient for subsequent incineration. At the same time, the wastewater in the garbage can be effectively separated, which is practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the lifting box of this utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the crushing mechanism of this utility model.

[0018] Explanation of the labels in the diagram:

[0019] 1. Base plate; 2. Support base; 3. Lifting box; 4. Conveying roller; 5. Lifting belt; 6. Filter hole; 7. Drain pipe; 8. First motor; 9. Feed hopper; 10. Cleaning mechanism; 11. Crushing mechanism; 12. Electro-hydraulic rod; 13. Push column; 14. Crushing box; 15. Crushing rod; 16. Crushing blade; 17. Second motor; 18. Control panel; 19. Support block; 20. Cleaning rod; 21. Cleaning brush; 22. Third motor; 23. Self-locking casters. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] Please see Figure 1-4A feeding mechanism for a three-section grate furnace includes a base plate 1. Two support seats 2 are fixedly connected to the top surface of the base plate 1. A lifting box 3 is rotatably connected between the two support seats 2. An electric hydraulic rod 12 is fixedly installed on the top surface of the base plate 1. A push column 13 is fixedly connected to the top end of the electric hydraulic rod 12. The top surface of the push column 13 is in contact with the bottom surface of the lifting box 3. Two conveying rollers 4 are rotatably connected to the inner cavity of the lifting box 3. A lifting belt 5 is driven between the two conveying rollers 4. Multiple filter holes 6 are opened on the outer side of the lifting belt 5. A first motor 8 is fixedly installed on the outer side of the lifting box 3. The output shaft of the first motor 8 is connected to one end of the shaft of a conveying roller 4. A feeding hopper 9 is provided at the lower part of the top of the lifting box 3. A cleaning mechanism 10 is provided on the feeding hopper 9. A crushing mechanism 11 is provided at the top of the bottom of the lifting box 3. A drain pipe 7 is fixedly sleeved at the bottom of the lifting box 3.

[0025] For details, please refer to Figure 1 and Figure 4 The crushing mechanism 11 includes a crushing box 14 fixedly connected to the top of the bottom of the lifting box 3. Two crushing rods 15 are rotatably connected to the inner cavity of the crushing box 14. Multiple crushing blades 16 are fixedly connected to the outer sides of the two crushing rods 15 respectively. Two second motors 17 are fixedly installed on the end face of the crushing box 14. The output shafts of the two second motors 17 are respectively connected to the ends of the two crushing rods 15.

[0026] In this embodiment, the multiple crushing blades 16 on the two crushing rods 15 are staggered to ensure that the waste can be effectively shredded.

[0027] For details, please refer to Figures 1 to 3 The cleaning mechanism 10 includes two support blocks 19 fixedly connected to the top surface of the feed hopper 9. A cleaning rod 20 is rotatably connected between the two support blocks 19. Multiple cleaning brushes 21 are fixedly connected to the outer side of the cleaning rod 20. A third motor 22 is fixedly installed on the outer side of one support block 19. The output shaft of the third motor 22 is connected to the end of the cleaning rod 20.

[0028] In this embodiment, the end of the cleaning brush 21 can contact the top of the lifting belt 5 to ensure that the garbage on the lifting belt 5 can be swept off.

[0029] For details, please refer to Figure 1 Multiple self-locking casters 23 are fixedly installed on the bottom surface of the base plate 1.

[0030] In this embodiment, the device is supported and moved using self-locking casters 23.

[0031] For details, please refer to Figure 1 A control panel 18 is fixedly installed on the outer side of the lifting box 3. The control panel 18 is electrically connected to the second motor 17, the first motor 8, the third motor 22, and the electric hydraulic rod 12.

[0032] In this embodiment, the control panel 18 is used to control the second motor 17, the first motor 8, the third motor 22, and the electro-hydraulic rod 12.

[0033] For details, please refer to Figure 2 The inner wall of the lifting box 3 and the side of the lifting belt 5 are in contact.

[0034] In this embodiment, the inner wall of the lifting box 3 is used to limit the side of the lifting belt 5 to prevent garbage from falling into the inner cavity of the lifting box 3.

[0035] Working principle: In use, the device is first moved by the self-locking casters 23, while the electric hydraulic rod 12 drives the push column 13 to move up and down. The push column 13 drives the lifting box 3 to rotate, thereby adjusting the height of the feed hopper 9 so that it is positioned at the feed inlet of the grate furnace. Then, the first motor 8 is started to drive a conveyor roller 4 to rotate clockwise, which in turn drives the lifting belt 5 to rotate clockwise. At the same time, the third motor 22 is started to drive the cleaning rod 20 and the cleaning brush 21 to rotate counterclockwise. Then, the two second motors 17 are started to drive the two crushing rods 15 to move towards the grate furnace. The inner side rotates, simultaneously driving the crushing blade 16 on the crushing rod 15 to rotate. Finally, the waste to be processed is put into the inner cavity of the crushing box 14, and the crushing blade 16 is used to chop the waste. The chopped waste falls onto the lifting belt 5 in the inner cavity of the lifting box 3. The waste liquid on the waste is filtered down by the filter holes 6 on the lifting belt 5 and discharged through the drain pipe 7. In addition, the filtered waste is lifted to a high place, and the waste at the top of the lifting belt 5 is cleaned by the cleaning brush 21, so that the waste falls completely into the feed hopper 9 and is added to the grate furnace from the feed hopper 9.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A feeding mechanism of a three-pass grate furnace, comprising a floor (1), characterized in that: Two support seats (2) are fixedly connected to the top surface of the base plate (1), and a lifting box (3) is rotatably connected between the two support seats (2). An electric hydraulic rod (12) is fixedly installed on the top surface of the base plate (1), and a push column (13) is fixedly connected to the top end of the electric hydraulic rod (12). The top surface of the push column (13) is in contact with the bottom surface of the lifting box (3). Two conveying rollers (4) are rotatably connected to the inner cavity of the lifting box (3), and a lifting belt (5) is driven between the two conveying rollers (4). The outer side of the lifting belt (5) is provided with multiple filter holes (6). The outer side of the lifting box (3) is fixedly installed with a first motor (8). The output shaft of the first motor (8) is connected to one end of the shaft of a conveying roller (4). The lower part of the top of the lifting box (3) is provided with a feeding hopper (9). The feeding hopper (9) is provided with a cleaning mechanism (10). The top of the bottom of the lifting box (3) is provided with a crushing mechanism (11). The bottom of the lifting box (3) is fixedly sleeved with a drain pipe (7). The crushing mechanism (11) includes a crushing box (14) fixedly connected to the top of the bottom end of the lifting box (3). Two crushing rods (15) are rotatably connected to the inner cavity of the crushing box (14). Multiple crushing blades (16) are fixedly connected to the outer sides of the two crushing rods (15). Two second motors (17) are fixedly installed on the end face of the crushing box (14). The output shafts of the two second motors (17) are respectively connected to the ends of the two crushing rods (15). The cleaning mechanism (10) includes two support blocks (19) fixedly connected to the top surface of the feed hopper (9), a cleaning rod (20) is rotatably connected between the two support blocks (19), a plurality of cleaning brushes (21) are fixedly connected to the outer side of the cleaning rod (20), and a third motor (22) is fixedly installed on the outer side of one of the support blocks (19), and the output shaft of the third motor (22) is connected to the end of the cleaning rod (20).

2. A feed mechanism for a three-pass grate furnace according to claim 1, characterized in that: Multiple self-locking casters (23) are fixedly installed on the bottom surface of the base plate (1).

3. A feed mechanism for a three-pass stoker-fired furnace as defined in claim 1, wherein: A control panel (18) is fixedly installed on the outer side of the lifting box (3). The control panel (18) is electrically connected to the second motor (17), the first motor (8), the third motor (22), and the electric hydraulic rod (12).

4. A feed mechanism for a three-pass stoker-fired furnace as defined in claim 1, wherein: The inner wall of the lifting box (3) and the side of the lifting belt (5) are in contact.