Reverse pushing fire grate capable of discharging ash
By designing rotatable baffles and pushing blocks in the embered area of the reverse grate, combined with the dislocation structure of the fixed grate and the movable grate, the automatic discharge and crushing of the slag is achieved, solving the problem of slag accumulation and improving the ash discharge efficiency.
Patent Information
- Application Number
- CN202422245868.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The existing reverse furnaces are shipped to accumulate furnace ash/slag in the ash area for a long time, reducing the ash discharge efficiency.
A reverse grate that can discharge ash is designed. By setting up a fixed grate and a movable grate that is dislocated in the ember area, and a bleed gap and a rotatable baffle are provided on the fixed grate and a movable grate. The automatic discharge and crushing of the slag is achieved by using the cooperation of push blocks and broken blocks.
It effectively avoids long-term accumulation of slag, improves ash discharge efficiency, and ensures the stability and efficiency of the incineration process.
Smart Images
Figure CN223004976U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of incinerators, and more specifically to a reverse stoker grate capable of discharging ash. Background Art
[0002] The reverse reciprocating stoker grate realizes the automatic tumbling movement of garbage while conveying garbage, so that the moisture in the garbage layer is quickly evaporated and dried, which is beneficial to incineration, and the garbage residue is not easy to agglomerate. Since manual poking is not required, the uniformity of incineration is also easy to ensure. The stoker grate receives the garbage output by the feeding trolley and completes the processes of drying, burning, burnout, and cooling of the garbage.
[0003] However, a certain amount of furnace ash / slag will be accumulated in the burnout area for a long time in this structure, reducing the ash discharge efficiency. Content of the Utility Model
[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a reverse stoker grate capable of discharging ash to solve the above technical problems.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A reverse stoker grate capable of discharging ash includes a fixed stoker grate and a movable stoker grate that are offset from each other. The fixed stoker grate and the movable stoker grate are inclined. A fixed contact edge extending downward to the movable stoker grate is provided on the upper side of the fixed stoker grate, and a movable contact edge extending downward to the fixed stoker grate is provided on the upper side of the movable stoker grate. The continuously arranged fixed stoker grate and movable stoker grate are sequentially divided into a drying area, a combustion area, and a burnout area from top to bottom. A first ash discharge notch is provided on the fixed contact edge of the fixed stoker grate in the burnout area. A rotatable first baffle is provided on the first ash discharge notch. A first pushing block is provided on the movable stoker grate, and the movement track of the first pushing block passes through the first ash discharge notch.
[0006] As a further improvement of the utility model, a movable crushing block is provided at the upper end of the movable stoker grate, and the first pushing block is adjacent to the movable crushing block.
[0007] As a further improvement of the utility model, a second ash discharge notch is provided on the movable contact edge of the movable stoker grate in the burnout area. A rotatable second baffle is provided on the second ash discharge notch. A second pushing block is provided on the fixed stoker grate, and the second pushing block is located on the movement track of the second ash discharge notch.
[0008] As a further improvement of the utility model, a reset block is provided on the movable stoker grate, and the reset block is arranged below the first pushing block.
[0009] As a further improvement of the utility model, a limiting block is provided on the side of the movable stoker grate at the second ash discharge notch, and the limiting block abuts against the second baffle.
[0010] As a further improvement of the present utility model, a fixed crushing block is provided at the upper end of the fixed grate.
[0011] The beneficial effects of the present utility model are to avoid slag accumulation and improve the ash discharge efficiency. Description of the Drawings
[0012] Figure 1 It is a schematic structural diagram of the fixed grate and the movable grate in the burnout zone;
[0013] Figure 2 It is a schematic side view structural diagram of the fixed grate;
[0014] Figure 3 It is a schematic side view structural diagram of the movable grate.
[0015] Marking description: 1. Fixed grate; 11. Fixed abutting edge; 12. First ash discharge notch; 13. First baffle; 14. Second pushing block; 2. Movable grate; 21. Movable abutting edge; 22. First pushing block; 23. Reset block; 24. Second ash discharge notch; 25. Second baffle; 31. Movable crushing block; 32. Fixed crushing block; 4. Limit block; Detailed Embodiment
[0016] The following will further describe the present utility model in detail with reference to the embodiments given in the drawings.
[0017] Refer to Figure 1 One Figure 3 As shown, a reverse-pushing grate capable of discharging ash in this embodiment includes a fixed grate 1 and a movable grate 2 that are offset from each other. The fixed grate 1 and the movable grate 2 are inclined. A fixed abutting edge 11 extending downward to the movable grate 2 is provided on the upper side of the fixed grate 1. A movable abutting edge 21 extending downward to the fixed grate 1 is provided on the upper side of the movable grate 2. The continuously arranged fixed grate 1 and movable grate 2 are successively divided into a drying zone, a combustion zone, and a burnout zone from top to bottom. A first ash discharge notch 12 is provided on the fixed abutting edge 11 of the fixed grate 1 in the burnout zone. A rotatable first baffle 13 is provided on the first ash discharge notch 12. A first pushing block 22 is provided on the movable grate 2. The movement track of the first pushing block 22 passes through the first ash discharge notch 12.
[0018] The movement track of the movable grate 2 is inclined downward / inclined upward. In the following content, downward is inclined downward and upward is inclined upward.
[0019] Through the above technical solution, when the grate operates, the movable grate 2 reciprocates to convey the garbage, enabling it to pass through the drying zone, combustion zone, and burnout zone in sequence. The burnout zone is the slag after combustion. The reciprocating movement of the movable grate 2 at this position conveys the slag to the external cooling device. During the reciprocating movement of the movable grate 2, the slag between the positioning contact and the movable grate 2 is discharged. The specific discharge process is as follows: The movable grate 2 moves downward, thereby driving the slag on the movable grate 2 and the adjacent fixed grate 1 downward. Since the fixed grate 1 and the movable grate 2 are inclined, the slag can be stably conveyed downward until the movable grate 2 moves to contact the first push block 22 with the first baffle 13. As the movable grate 2 continues to descend, it pushes the first baffle 13 to rotate downward, enabling the slag between the fixed contact edge 11 and the movable grate 2 to leave through the first ash discharge notch 12. As the movable grate 2 moves, the slag is continuously discharged, avoiding the problem of long-term accumulation of this part of the slag and improving the ash discharge efficiency. The slag leaving from the first ash discharge notch 12 enters the external cooling device through the inclined conveying channel below. Then the interactive grate moves upward, thereby driving the first push block 22 upward. As the first push block 22 leaves, the first baffle 13 gradually resets, preventing the slag from continuously falling from the first ash discharge notch 12 and improving the stability of ash discharge.
[0020] As a specific embodiment of the improvement, a movable crushing block 31 is provided at the upper end of the movable grate 2, and the first push block 22 is adjacent to the movable crushing block 31.
[0021] Through the above technical solution, when the first push block 22 pushes the first baffle 13 to rotate, the movable crushing block 31 approaches the first ash discharge notch 12, preventing too much slag from being discharged through the first ash discharge notch 12, avoiding blockage of the first ash discharge notch 12, and improving the stability and discharge efficiency of slag discharge.
[0022] Specifically, the movable crushing block 31 can crush oversize slag, facilitating subsequent cooling treatment.
[0023] As a specific embodiment of the improvement, a second ash discharge notch 24 is provided on the movable contact edge 21 of the movable grate 2 located in the burnout zone. A rotatable second baffle 25 is provided on the second ash discharge notch 24. A second push block 14 is provided on the fixed grate 1, and the second push block 14 is located on the movement track of the second ash discharge notch 24.
[0024] Through the above technical solution, the process of slag discharge between the movable contact edge 21 and the fixed grate 1 is as follows: The movable grate 2 moves downward, thereby driving the second ash discharge notch 24 and the second baffle 25 to descend synchronously until the second baffle 25 contacts the second pushing block 14. Then, as the movable grate 2 continues to descend, the second pushing block 14 pushes the second baffle 25 to continue rotating and open at a larger angle, completing the slag discharge between the movable contact edge 21 and the fixed grate 1. Then, during the ascending process of the movable grate 2, as the second baffle 25 and the second pushing block 14 are gradually separated, the second baffle 25 gradually resets under the action of gravity until the second baffle 25 is separated from the second pushing block 14. At this time, the second baffle 25 resets to close the second ash discharge notch 24. The second ash discharge notch 24 is only opened for ash discharge during ash discharge, avoiding blockage of the second ash discharge notch 24, and improving the stability and discharge efficiency of slag discharge.
[0025] During the movement of the movable grate 2, the slag between the movable contact edge 21 and the fixed grate 1 and between the fixed contact edge 11 and the movable grate 2 can be removed simultaneously without dead angles and with high ash discharge efficiency.
[0026] As a specific implementation of the improvement, a reset block 23 is provided on the movable grate 2, and the reset block 23 is arranged below the first pushing block 22.
[0027] Through the above technical solution, specifically, the reset block 23 is located below the first baffle 13. When the movable grate 2 ascends, the reset block 23 contacts the first baffle 13, pushing the first baffle 13 to reset and close the first ash discharge notch 12, improving the reset speed of the first baffle 13 and contacting the reset first baffle 13 to improve the support strength of the first baffle 13 after reset and the stability during use.
[0028] Specifically, setting the reset block 23 can be adapted to the structure in which the fixed contact edge 11 is vertically arranged with the movable grate 2. In this structure, less slag is accommodated between the movable grate 2 and the fixed contact edge 11, and the ash discharge stability is high and the efficiency is high.
[0029] As a specific implementation of the improvement, a limit block 4 is provided on the side of the second ash discharge notch 24 of the movable grate 2, and the limit block 4 contacts the second baffle 25.
[0030] Through the above technical solution, the limit block 4 is located below the second baffle 25, can support the second baffle 25 after the second baffle 25 resets, and improve the support strength of the second baffle 25 after reset, making the position of the second baffle 25 stable and improving the stability during operation.
[0031] Specifically, the limit block 4 is misaligned with the second pushing block 14.
[0032] As a specific implementation of the improvement, a fixed crushing block 32 is provided at the upper end of the fixed grate 1.
[0033] Through the above technical solution, the fixed crushing block 32 can crush oversize slag, facilitating subsequent cooling treatment.
[0034] Specifically, when the second ash discharge notch 24 is fully opened, the second baffle 25 abuts against the fixed crushing block 32, and the crushed slag particles directly roll / move downward, improving the discharge efficiency.
[0035] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.
Claims
1. A reverse push grate capable of discharging ash, comprising a fixed grate (1) and a movable grate (2) which are offset from each other, wherein the fixed grate (1) and the movable grate (2) are arranged obliquely, wherein the upper side of the fixed grate (1) is provided with a fixed abutment edge (11) extending toward the movable grate (2) below, and the upper side of the movable grate (2) is provided with a movable abutment edge (21) extending toward the fixed grate (1) below, wherein: The fixed grate (1) and the movable grate (2) are arranged in succession and are divided into a drying zone, a combustion zone and a burnout zone from top to bottom. A first ash discharge notch (12) is provided on the fixed abutment edge (11) of the fixed grate (1) located in the burnout zone. A rotatable first baffle (13) is provided on the first ash discharge notch (12). A first push block (22) is provided on the movable grate (2). The movement trajectory of the first push block (22) passes through the first ash discharge notch (12).
2. The reverse push grate capable of discharging ash according to claim 1, characterized in that: A movable crushing block (31) is provided at the upper end of the movable grate (2), and the first pushing block (22) is adjacent to the movable crushing block (31).
3. The reverse push grate capable of discharging ash according to claim 1 or 2, characterized in that: A second ash discharge notch (24) is provided on a movable abutment edge (21) of a movable grate (2) located in a burning zone, a rotatable second baffle (25) is provided on the second ash discharge notch (24), and a second push block (14) is provided on the fixed grate (1), the second push block (14) being located on a movement track of the second ash discharge notch (24).
4. The reverse push grate capable of discharging ash according to claim 1, characterized in that: The movable grate (2) is provided with a reset block (23), and the reset block (23) is arranged below the first pushing block (22).
5. The reverse push grate capable of discharging ash according to claim 3, characterized in that: The movable grate (2) is provided with a limiting block (4) on the side of the second ash discharge notch (24), and the limiting block (4) is in conflict with the second baffle (25).
6. The reverse push grate capable of discharging ash according to claim 3, characterized in that: A fixed crushing block (32) is provided at the upper end of the fixed grate (1).