A slagging mechanism for a biomass combustion furnace

Abstract

A kind of biomass combustion furnace is discharged with slag mechanism.The present application relates to the field of biomass combustion furnace, including: slag collecting pipe, the slag collecting pipe is equipped in the bottom of combustion cylinder of combustion furnace, the upper portion of the slag collecting pipe is communicated with the combustion cylinder, the lower portion of the slag collecting pipe is equipped with plugboard;Slag collecting box, the slag collecting box is equipped in the inside of the combustion furnace, drive mechanism is equipped on the outer wall of the combustion furnace, and the drive mechanism is used to drive the displacement of the slag collecting box to the lower portion of the slag collecting pipe.The present application drives the displacement of slag collecting box to the lower portion of slag collecting pipe by drive mechanism, can carry out slag collecting operation without stopping furnace, improves the efficiency of slagging and discharging.

Description

Technical Field

[0001] This application relates to the field of biomass combustion furnaces, specifically to a slag discharge mechanism for a biomass combustion furnace. Background Technology

[0002] Biomass combustion furnaces, as an important component of environmental protection and energy-saving equipment, have received widespread attention and application in recent years due to increased environmental awareness and diversified energy demands. Utilizing biomass briquettes such as firewood, straw, corn cobs, and nutshells, they generate high-temperature flames through complete combustion, transferring heat to thermal equipment. They play a vital role in heating, power generation, and other fields, not only helping to reduce dependence on traditional fossil fuels but also effectively reducing pollutant emissions, thus having a positive impact on environmental friendliness and sustainable development.

[0003] In existing biomass combustion furnace ash removal technologies, the common approach to address ash accumulation in the combustion chamber after a period of combustion is manual cleaning after shutdown. Operators wait for the furnace to stop operating and cool down for a while, then open the combustion chamber and use tools such as shovels and brooms to carefully remove the ash. Alternatively, semi-automated ash removal equipment is used to scrape or suck the ash out of the combustion chamber after shutdown. Other methods incorporate simple ash removal channels into the furnace design, but ash removal still requires operation while the furnace is shut down to ensure operator safety and a smooth ash removal process.

[0004] However, existing ash removal methods have significant drawbacks. Ash removal can only be performed after the furnace is shut down, greatly reducing ash removal and discharge efficiency. This prevents the biomass combustion furnace from continuously and stably providing heat to the thermal equipment, affecting the overall system efficiency. Furthermore, manual operation in high-temperature environments poses certain safety risks, easily causing burns and other injuries to operators. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this application provides a slag discharge mechanism for a biomass combustion furnace.

[0006] This application adopts the following technical solution: a slag discharge mechanism for a biomass combustion furnace, comprising:

[0007] A slag collection pipe is provided at the bottom of the combustion chamber of the combustion furnace, the upper part of the slag collection pipe is connected to the combustion chamber, and the lower part of the slag collection pipe is provided with a plate.

[0008] A slag collection box is located inside the combustion furnace. A driving mechanism is provided on the outer wall of the combustion furnace. The driving mechanism is used to drive the slag collection box to move below the slag collection pipe.

[0009] Optionally, the combustion chamber is provided with a fuel pipe inside, the fuel pipe is coaxially arranged with the combustion chamber, a plurality of support columns are provided on the outer wall of the fuel pipe, one end of the support column is connected to the fuel pipe, the other end of the support column is connected to the inner wall of the combustion chamber, and the bottom of the combustion chamber is provided with a through hole for installing the slag collection pipe.

[0010] The fuel pipe has several perforations, through which the slag produced during combustion falls into the through holes.

[0011] Optionally, a socket is provided on one side of the slag collection pipe, and a slot is provided on the inner wall of the slag collection pipe. The socket communicates with the slot, and the insert plate is inserted into the inner side of the slag collection pipe through the socket and moves within the slot.

[0012] Optionally, the height of the end of the slot near the socket is higher than the height of the end of the slot away from the socket, and the insert plate is tilted after being inserted into the slot.

[0013] Optionally, the insert plate is L-shaped, with its horizontal end inserted into the inner side of the slag collection pipe and its vertical end extending downward and located on the outer side of the slag collection pipe.

[0014] The vertical end of the insert plate is connected to the outer wall of the slag collection pipe by a tension spring.

[0015] Optionally, the driving mechanism includes a hydraulic cylinder and a pair of slide rails, the slag collection box is disposed on the slide rails, and the hydraulic cylinder is used to drive the slag collection box to slide on the slide rails;

[0016] The slag collection box and the slag collection pipe are separated from each other in the horizontal direction, and the vertical end of the insert plate interferes with the slag collection box in the horizontal direction.

[0017] Optionally, a support is also provided on the outer wall of the combustion furnace, and the slide rail is fixed on the support.

[0018] Optionally, a connecting block is provided on the side of the slag collection box facing the vertical end of the insert plate, and a pin is provided between the push rod of the hydraulic cylinder and the connecting block, with limit caps connected to both ends of the pin by threads.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. The slag collection pipe is located at the bottom of the combustion cylinder, which can collect the slag produced by combustion in a timely manner. The slag collection box is driven to move below the slag collection pipe by the drive mechanism, so that the slag collection operation can be carried out without stopping the furnace. This changes the traditional method of slag discharge only after the furnace is shut down, and greatly improves the efficiency of slag discharge.

[0021] 2. As the slag collection box moves downward toward the slag collection pipe, it pushes the insert plate, thus linking the movement of the slag collection box with the opening of the slag collection pipe. This avoids burns caused by manually opening the insert plate and effectively improves operational efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic perspective view of this application;

[0023] Figure 2 This is a reference diagram showing the explosion state of the combustion chamber and slag collection pipe;

[0024] Figure 3 This is a reference for the assembly status of the combustion chamber, slag collection pipe, and slag collection box. Figure 1 ;

[0025] Figure 4 This is a reference for the assembly status of the combustion chamber, slag collection pipe, and slag collection box. Figure 2 ;

[0026] In the diagram: 1. Slag collection pipe; 11. Insert plate; 110. Tension spring; 12. Insert; 13. Slot; 2. Combustion furnace; 20. Support; 3. Combustion cylinder; 31. Fuel pipe; 310. Perforation; 32. Support column; 33. Through hole; 4. Slag collection box; 41. Connecting block; 42. Pin; 43. Limit cap; 5. Hydraulic cylinder; 6. Slide rail. Detailed Implementation

[0027] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] like Figure 1-4 As shown, a slag removal mechanism for a biomass combustion furnace includes a slag collection pipe 1, a slag collection box 4, and a drive mechanism. The slag collection pipe 1 is located at the bottom of the combustion cylinder 3 of the combustion furnace 2, with its upper part connected to the combustion cylinder 3 and its lower part equipped with an insert plate 11. The slag collection box 4 is located inside the combustion furnace 2, and the drive mechanism is located on the outer wall of the combustion furnace 2. The drive mechanism is used to drive the slag collection box 4 to move outward from inside the combustion furnace 2 until it is positioned below the slag collection pipe 1. In this way, without shutting down the furnace, the slag inside the combustion cylinder 3 can be collected and discharged, improving the slag removal and discharge efficiency, eliminating the need for manual cleaning during furnace shutdown, and greatly reducing safety risks.

[0029] The insert plate 11 is used to control the slag discharge of the slag collecting pipe 1. The insert plate 11 is L-shaped, and a socket 12 is provided on the outer wall of the slag collecting pipe 1. The socket 12 is located on one side of the slag collecting pipe 1 and is the channel through which the insert plate 11 is inserted into the slag collecting pipe 1. Its shape is adapted to the insert plate 11 and is generally rectangular. A slot 13 is provided on the inner wall of the slag collecting pipe 1. The slot 13 is U-shaped and is interconnected with the socket 12. In this way, when the horizontal end of the insert plate 11 is inserted into the slag collecting pipe 1 through the socket 12, the end of the insert plate 11 will also slide in the slot 13, so that the insert plate 11 can be smoothly inserted into the slag collecting pipe 1. This ensures that the insert plate 11 will not move when slag accumulates in the slag collecting pipe 1, thus ensuring the reliable sealing effect of the insert plate 11 on the slag collecting pipe 1. The horizontal end of the insert plate 11 is inserted into the inner side of the slag collecting pipe 1, and the vertical end extends downward and is located on the outer side of the slag collecting pipe 1. The vertical end of the insert plate 11 is connected to the outer wall of the slag collection pipe 1 by a tension spring 110. One end of the tension spring 110 is fixed to the vertical end of the insert plate 11, and the other end is fixed to the outer wall of the slag collection pipe 1. The function of the tension spring 110 is to keep the insert plate 11 closed when slag discharge is not required. When the insert plate 11 is moved out of the slot 13 and stops at the socket 12, the tension spring 110 is in a stretched and energy-storing state, thus enabling the insert plate 11 to automatically reset. The height of the end of the slot 13 near the socket 12 is higher than the height of the end of the slot 13 away from the socket 12, so that the insert plate 11 is tilted after being inserted into the slot 13. This design helps the insert plate 11 to better close the slag collection pipe 1 under the action of gravity, and at the same time, the slag can be discharged more smoothly when slag discharge is opened. The socket 12 and slot 13 provide channels for the insertion and movement of the insert plate 11. The insert plate 11 controls the opening and closing of the slag collection pipe 1 under the action of the tension spring 110, realizing the collection and controllable discharge of slag by the slag collection pipe 1.

[0030] A fuel pipe 31 is installed inside the combustion chamber 3, and the fuel pipe 31 is coaxially arranged with the combustion chamber 3. Multiple support columns 32 are provided between the outer wall of the fuel pipe 31 and the inner wall of the combustion chamber 3. The support columns 32 can be rod-shaped, and their number depends on the size and weight of the fuel pipe 31, typically 3-4 columns. Alternatively, the support columns 32 can be ring-shaped, with the support ring encircling the outer wall of the fuel pipe 31 and connecting to the inner wall of the combustion chamber 3, providing more stable support. One end of each support column 32 is connected to the fuel pipe 31, and the other end is connected to the inner wall of the combustion chamber 3. Under the support of the support columns 32, the fuel pipe 31 can be reliably fixed inside the combustion chamber 3, forming a receiving cavity between the fuel pipe 31 and the combustion chamber 3. When fuel burns inside the fuel pipe 31, the resulting slag can fall into the receiving cavity through the perforations 310 on the outer wall of the fuel pipe 31. Furthermore, a through hole 33 is provided at the bottom of the combustion cylinder 3, and the slag collection pipe 1 is inserted into the through hole 33. The top of the slag collection pipe 1 does not extend into the receiving cavity. In this way, after the slag falls into the receiving cavity, it can immediately enter the slag collection pipe 1 through the through hole 33.

[0031] The driving mechanism includes a hydraulic cylinder 5 and a pair of slide rails. The slag collection box 4 is located inside the combustion furnace 2 and at the top of the pair of slide rails, allowing it to slide on the rails. One end of the slide rail is inside the combustion furnace 2, and the other end is outside the combustion furnace 2, extending below the slag collection pipe 1. This allows the slag collection box 4 to slide below the slag collection pipe 1 for slag collection. Furthermore, a bracket 20 is provided on the outer wall of the combustion furnace 2 to support the slide rails and ensure they are reliably fixed. The hydraulic cylinder 5 drives the slag collection box 4 to slide on the slide rails. A pin 42 passes between the push rod of the hydraulic cylinder 5 and the connecting block 41. Both ends of the pin 42 are threadedly connected to limit caps 43. This connection method ensures that the hydraulic cylinder 5 can stably drive the slag collection box 4 to move, and the slag collection box 4 can be removed separately after unscrewing the limit caps 43 for easy slag removal.

[0032] Furthermore, the slag collection box 4 and the slag collection pipe 1 are separated from each other in the horizontal direction, and the vertical end of the insert plate 11 interferes with the slag collection box 4 in the horizontal direction. That is to say, under the drive of the hydraulic cylinder 5, the slag collection box 4 can reliably move to the bottom of the slag collection pipe 1 without colliding with it. At the same time, before the slag collection box 4 moves into position, the front end of the slag collection box 4 will interfere with the vertical end of the insert plate 11, thereby causing the insert plate 11 to be pulled out from the slag collection pipe 1, realizing the automatic opening of the insert plate 11. After the slag collection box 4 moves into position and finishes collecting slag, the hydraulic cylinder 5 drives the slag collection box 4 to reset. During this process, under the action of the tension spring 110, the insert plate 11 can also automatically reset, reducing the need for close-range manual operation, ensuring reliable slag discharge, and reducing the risk of personnel injury.

[0033] The implementation principle of this embodiment is as follows: Through the cooperation of components such as the slag collection pipe 1, the combustion cylinder 3, and the slag collection box 4, the function of slag discharge without shutting down the furnace is achieved. The insert plate 11 of the slag collection pipe 1 is normally closed under the action of the tension spring 110. Slag enters the slag collection pipe 1 through the perforation 310 of the fuel pipe 31 and the through hole 33 at the bottom of the combustion cylinder 3. When slag discharge is required, the drive mechanism drives the slag collection box 4 to move below the slag collection pipe 1. During the movement, the slag collection box 4 pushes the vertical end of the insert plate 11, causing the insert plate 11 to overcome the tension of the tension spring 110 and open the slag collection pipe 1, allowing the slag to fall into the slag collection box 4. After slag discharge is completed, the drive mechanism drives the slag collection box 4 back to its original position, and the insert plate 11 closes the slag collection pipe 1 under the action of the tension spring 110. This improves the efficiency of slag discharge and removal, avoids furnace shutdown operations, reduces safety risks, and improves upon the existing technology that requires furnace shutdown for slag discharge, thereby improving the working efficiency and safety of the biomass combustion furnace 2.

[0034] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A slag discharge mechanism for a biomass combustion furnace, characterized in that, include: Slag collection pipe (1), the slag collection pipe (1) is located at the bottom of the combustion cylinder (3) of the combustion furnace (2), the upper part of the slag collection pipe (1) is connected to the combustion cylinder (3), and the lower part of the slag collection pipe (1) is provided with a plate (11); The slag collection box (4) is located inside the combustion furnace (2). A driving mechanism is provided on the outer wall of the combustion furnace (2). The driving mechanism is used to drive the slag collection box (4) to move below the slag collection pipe (1).

2. The slag discharge mechanism for a biomass combustion furnace according to claim 1, characterized in that, The combustion cylinder (3) is provided with a fuel pipe (31) inside. The fuel pipe (31) is coaxially arranged with the combustion cylinder (3). Multiple support columns (32) are provided on the outer wall of the fuel pipe (31). One end of the support column (32) is connected to the fuel pipe (31), and the other end of the support column (32) is connected to the inner wall of the combustion cylinder (3). The bottom of the combustion cylinder (3) is provided with a through hole (33) for installing the slag collection pipe (1). The fuel pipe (31) is provided with several perforations (310), and the slag produced by combustion falls into the through hole (33) through the perforations (310).

3. The slag discharge mechanism for a biomass combustion furnace according to claim 1, characterized in that, The slag collection pipe (1) has a socket (12) on one side and a slot (13) on the inner wall of the slag collection pipe (1). The socket (12) communicates with the slot (13). The insert plate (11) is inserted into the inner side of the slag collection pipe (1) through the socket (12) and moves in the slot (13).

4. The slag discharge mechanism for a biomass combustion furnace according to claim 3, characterized in that, The height of the end of the slot (13) near the socket (12) is higher than the height of the end of the slot (13) away from the socket (12), and the insert plate (11) is tilted after being inserted into the slot (13).

5. The slag discharge mechanism for a biomass combustion furnace according to claim 3, characterized in that, The insert plate (11) is L-shaped, with the horizontal end of the insert plate (11) inserted into the inner side of the slag collection pipe (1) and the vertical end of the insert plate (11) extending downward and located on the outer side of the slag collection pipe (1). The vertical end of the insert plate (11) is connected to the outer wall of the slag collection pipe (1) by a tension spring (110).

6. The slag discharge mechanism for a biomass combustion furnace according to claim 5, characterized in that, The driving mechanism includes a hydraulic cylinder (5) and a pair of slide rails. The slag collection box (4) is mounted on the slide rails. The hydraulic cylinder (5) is used to drive the slag collection box (4) to slide on the slide rails. The slag collection box (4) and the slag collection pipe (1) are separated from each other in the horizontal direction, and the vertical end of the insert plate (11) interferes with the slag collection box (4) in the horizontal direction.

7. The slag discharge mechanism for a biomass combustion furnace according to claim 6, characterized in that, The outer wall of the combustion furnace (2) is also provided with a support (20), and the slide rail is fixed on the support (20).

8. The slag discharge mechanism for a biomass combustion furnace according to claim 6, characterized in that, The slag collection box (4) is provided with a connecting block (41) on the side facing the vertical end of the insert plate (11). A pin (42) is provided between the push rod of the hydraulic cylinder (5) and the connecting block (41). Both ends of the pin (42) are connected to limit caps (43) by threads.

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