Combustor with split type slag discharging plate
The modular design of the split ash discharge plate solves the problems of wear and inconvenience in maintenance of the ash discharge plate of the heating furnace under diversified fuel environments, realizes convenient replacement and efficient operation, and improves the reliability and adaptability of the equipment.
Patent Information
- Application Number
- CN202520923362.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-15
- Estimated Expiration
- 2035-05-12
AI Technical Summary
The ash discharge plates of existing heating boilers are prone to wear, deformation or ablation in high-temperature and high-dust environments. Furthermore, the integrated design makes maintenance cumbersome and difficult to adapt to diverse fuels, affecting equipment reliability and heating continuity.
It adopts a split slag discharge plate design, and through a detachable modular structure, it uses the gap fit between the clamp head and the clamp slot to achieve a stable connection between the slag discharge plate and the reciprocating drive device, allowing for the individual replacement of wear parts and adapting to different fuel conditions.
It improves the reliability and ease of maintenance of the equipment in diverse fuel environments, reduces the cost of parts replacement and downtime, and enhances the practicality and adaptability of the equipment.
Smart Images
Figure CN224246217U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to heating furnaces, and more particularly to a burner with a split slag discharge plate. Background Technology
[0002] In the field of heating furnace technology, automatic ash removal is a key design feature to ensure efficient and stable operation of the equipment. For example, the biomass fuel furnace with automatic ash removal, previously disclosed by the applicant under publication number CN119146429A, achieves automatic ash removal during combustion by setting an ash discharge port and a ash discharge plate at the bottom of the combustion chamber and using a cylindrical cam to drive the ash discharge plate in reciprocating motion. This effectively solves problems such as ash blocking ventilation holes and backfire. However, this biomass fuel furnace still has room for further improvement when adapting to diverse fuels.
[0003] On the one hand, the slag discharge plate is in a harsh environment of high temperature and high dust for a long time, directly contacting the slag, ash and corrosive substances produced by combustion. Whether it is biomass pellets, semi-coke pellets, or fuels such as coal and branches, the slag formed after combustion may have different hardness, melting point and adhesion due to differences in composition. The hard slag after semi-coke combustion and the coking slag after coal combustion are very likely to cause failure problems such as wear, deformation or ablation of the slag discharge plate. In the existing technology, the slag discharge plate is connected to the guide column, reset spring and other components as a whole. Once a part is damaged, the entire slag discharge plate and related drive mechanism need to be disassembled, which makes the maintenance process cumbersome, time-consuming and labor-intensive, and significantly increases the cost of replacing parts.
[0004] On the other hand, with the expansion of heating boiler application scenarios, fuel types are becoming increasingly diversified, covering biomass pellets, semi-coke pellets, coal, and branches. The slag characteristics produced by different fuels vary significantly, placing diverse demands on the material and structure of the slag discharge plate, such as wear-resistant, high-temperature resistant, and anti-coking types. However, the existing integrated slag discharge plate structure is fixed, making it difficult to flexibly replace suitable components for different operating conditions, such as the coking nature of coal slag or the ash impurities of branches, severely limiting the equipment's adaptability to diverse fuels. Furthermore, equipment maintenance requires shutdown and disassembly of the slag discharge plate, leading to system interruptions and affecting heating continuity. This inconvenience is particularly pronounced in long-term winter operation or multi-fuel scenarios.
[0005] As heating boilers develop towards intelligence, high efficiency, and diversified fuels, modular and easy-to-maintain structural designs have become important requirements. The integrated design of the ash discharge plate in the existing technology can no longer meet the requirements of convenient maintenance, reduced downtime, and adaptability to various fuel conditions. Utility Model Content
[0006] To overcome the deficiencies or one of the deficiencies in existing technologies, the purpose of this utility model is to provide a burner with a split ash discharge plate. Through a modular design that allows for disassembly and replacement, it solves the problem of ash discharge plate wear caused by different fuels, thereby improving the reliability, practicality, and ease of maintenance of the equipment in diverse fuel environments. To achieve the above objective, this utility model adopts the following technical solution:
[0007] A combustion furnace with a split ash discharge plate includes a combustion bed composed of a U-shaped perforated plate. The bottom plate at the front end of the U-shaped perforated plate has an ash discharge port, and an ash discharge plate is disposed below the ash discharge port. The upper surface of the ash discharge plate is limited by the bottom plate of the U-shaped perforated plate, and the lower surface is supported by the front end plate of the wind box. Unlike the prior art, the middle of the rear end of the ash discharge plate extends backward to form a clamp. It also includes a connecting plate connected to a reciprocating drive device. The front end of the connecting plate has a groove that matches the clamp. The clamp gaps into the groove to connect the connecting plate and the ash discharge plate. The ash discharge plate presses against the bottom wall of the front end plate and the groove by its own weight, keeping the clamp in contact with the groove and preventing the ash discharge plate from displacing upward.
[0008] Furthermore, the card head is dumbbell-shaped, including a wider expanded section and a narrower constricted section. Correspondingly, the card slot includes a wider receiving groove and a narrower limiting groove disposed at the front end of the connecting plate. The expanded section is adapted to the receiving groove, and the narrowed section is adapted to the limiting groove, so as to realize the card head's snap-fit engagement within the card slot.
[0009] Furthermore, a support plate is welded to the bottom front end of the connecting plate to serve as the bottom wall of the slot. The support plate is used to support the card head and enhance the stability of the card head and the slot.
[0010] Furthermore, the pallet has multiple through holes, through which the pallet and the connecting plate are spot-welded together.
[0011] Furthermore, a pad is welded to the sliding fit of the bottom surface of the middle part of the connecting plate and the rear end plate passing through the air box. The pad is used to prevent wear on the connecting plate.
[0012] Furthermore, multiple through holes are provided on the pad, through which the pad and the connecting plate are spot welded together.
[0013] Furthermore, the reciprocating drive device includes a motor fixed to the machine body behind the combustion bed, and a cylindrical cam fixed to the auger shaft. The motor drives the auger shaft and the cylindrical cam to rotate via a chain. A circular hole is opened at the rear end of the connecting plate, through which an axially vertical roller shaft is installed. A roller is rotated at the upper end of the roller shaft, and the roller shaft abuts against the cylindrical cam. A sliding hole is opened on the rear end plate of the wind box, through which the connecting plate slides and engages with the rear end plate of the wind box. A hanging hole is opened on the connecting plate near the rear end plate, with one end of a tension spring hanging on the hanging hole and the other end hanging on the furnace body near the roller. When the motor drives the auger shaft to rotate for material conveying, the cylindrical cam drives the connecting plate and the slag discharge hole plate connected thereto to reciprocate.
[0014] Furthermore, an elongated hole is provided on the connecting plate between the round hole and the hanging hole, and a screw is arranged vertically in the axial direction, with its screw rod passing through the elongated hole and fixed to the furnace body near the roller; the screw head plays a limiting role on the lower surface of the connecting plate, and the nut screwed to the screw rod plays a limiting role on the upper surface of the connecting plate.
[0015] Furthermore, a hanging ring is fixed on the connecting plate near the rear end plate, one end of the tension spring is hung on the hanging ring, and the other end is hung on the furnace body near the roller; two opposing guide plates with guide grooves are also fixed on the furnace body, and the guide grooves on the guide plates limit the connecting plate to the left and right and up and down.
[0016] Furthermore, the exposed through holes on the slag discharge orifice plate and the through holes on the bottom plate of the U-shaped orifice plate have the same shape and corresponding positions. The length of the through holes on the slag discharge orifice plate hidden under the bottom plate of the U-shaped orifice plate in the front-back direction is greater than the length of the through holes exposed on the slag discharge orifice plate. The through holes on both the slag discharge orifice plate and the bottom plate of the U-shaped orifice plate are oblong holes, and their length direction is the front-back direction.
[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0018] 1. Solving the problem of slag discharge plate wear: Adopting a detachable and replaceable modular design, when the slag discharge plate is partially damaged, there is no need to disassemble the entire slag discharge plate and related drive mechanism. Only the slag discharge plate needs to be replaced. This solves the problem of wear, deformation or ablation of the slag discharge plate caused by contact with slag with different characteristics due to different fuels, and reduces the cost of parts replacement.
[0019] 2. Improve equipment reliability: The slag discharge orifice plate presses against the front end plate and the bottom wall of the slot by its own weight, keeping the chuck in contact with the slot and preventing the slag discharge orifice plate from shifting upward and falling out. This ensures the stable operation of the slag discharge process and improves the reliability of the equipment in diverse fuel environments.
[0020] 3. Enhance equipment practicality: It meets the adaptability requirements of heating boilers to diversified fuels. Different fuels produce slag with different characteristics. The split slag discharge plate can be flexibly replaced with suitable slag discharge orifice plate components according to different working conditions, such as wear-resistant type, high temperature resistant type, and anti-coking type, thus improving the practicality of the equipment.
[0021] 4. Improved ease of maintenance: It changes the problem of fixed structure and cumbersome maintenance of existing integrated slag discharge plate. During equipment maintenance, there is no need to stop the machine to disassemble the entire slag discharge plate and related drive mechanism. Only the slag discharge hole plate needs to be replaced, which reduces downtime and solves the problem of system operation interruption and heating continuity caused by inconvenient maintenance in the existing technology. It has obvious advantages, especially in long-term operation in winter or multi-fuel mixed use scenarios. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] Figure 2 yes Figure 1 A magnified view of a portion of the image.
[0024] Figure 3 This is a structural schematic diagram from another perspective of the present invention.
[0025] Figure 4 This is a structural diagram of the combination of the connecting plate and the slag discharge plate of this utility model.
[0026] Figure 5 This is a structural schematic diagram from another perspective when the connecting plate and the slag discharge plate of this utility model are combined.
[0027] Figure 6 This is a schematic diagram of the structure of the slag discharge plate and the connecting plate when the slag discharge plate of this utility model is separated.
[0028] Figure 7 This is a schematic diagram of another connecting plate structure of this utility model. Detailed Implementation
[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0030] like Figure 1-6 The burner shown includes a split-type ash discharge plate, comprising:
[0031] A combustion furnace with a split ash discharge plate includes a combustion bed formed by a U-shaped perforated plate 1. The bottom plate at the front end of the U-shaped perforated plate 1 has an ash discharge port 11, and an ash discharge perforated plate 2 is arranged below the ash discharge port 11. The upper surface of the ash discharge perforated plate 2 is limited by the bottom plate of the U-shaped perforated plate 1, and the lower surface is supported by the front end plate 3 of the wind box. The ash discharge perforated plate 2 is characterized in that the middle of the rear end of the ash discharge perforated plate 2 extends rearward to form a clamping head 21. It also includes a connecting plate 4 connected to a reciprocating drive device. The front end of the connecting plate 4 has a clamping groove 41 adapted to the clamping head 21. The clamping head 21 gaps into the clamping groove 41 to realize the connection between the connecting plate 4 and the ash discharge perforated plate 2. The ash discharge perforated plate 2 presses against the front end plate 3 and the bottom wall of the clamping groove 41 by its own weight, so that the clamping head 21 is in contact with the clamping groove 41 and the ash discharge perforated plate 2 is prevented from displacing upward and falling out.
[0032] Working principle
[0033] This embodiment utilizes a modular, split design, employing a clearance fit between the clamping head 21 of the slag discharge orifice plate 2 and the clamping groove 41 of the connecting plate 4 to achieve power transmission between the slag discharge orifice plate and the reciprocating drive device. The slag discharge orifice plate, by its own weight, presses against the front end plate 3 of the bellows and the bottom wall of the clamping groove 41, ensuring that the clamping head remains in contact with the groove and preventing upward displacement and dislodgement. Simultaneously, it allows the slag discharge orifice plate to stably remove slag during reciprocating motion. When maintenance or replacement is required, only the slag discharge orifice plate needs to be disassembled; the connecting plate and drive mechanism do not need to be disassembled, enabling convenient replacement.
[0034] Work process
[0035] 1. Combustion stage:
[0036] The fuel burns in the combustion bed formed by the U-shaped perforated plate 1. The ash, coke, and other slag produced by combustion fall through the slag outlet 11 of the front bottom plate onto the upper surface of the slag discharge perforated plate 2 below. The upper surface of the slag discharge perforated plate 2 is limited by the bottom plate of the U-shaped perforated plate 1, and the lower surface is supported by the front end plate 3 of the wind box, forming a stable load-bearing structure.
[0037] 2. Slag removal stage:
[0038] When the reciprocating drive device, such as the cam mechanism in the prior art, is activated, it drives the connecting plate 4 to perform reciprocating linear motion. The slot 41 at the front end of the connecting plate 4 pulls the slag discharge plate 2 in a synchronous reciprocating motion through the clearance-fitted clamp 21. The movement of the slag discharge plate 2 causes the slag to fall off the plate surface and be discharged from the front end of the slag discharge plate, thus achieving automatic slag removal.
[0039] During the reciprocating motion of slag discharge, the slag discharge orifice plate 2 relies on its own weight to press against the front end plate 3 and the bottom wall of the slot 41, ensuring the contact stability between the clamp head 21 and the slot 41, preventing the slag discharge orifice plate from falling out due to vibration or force, and ensuring the reliability of the slag cleaning action.
[0040] 3. Maintenance and Replacement Phase:
[0041] When the slag discharge orifice plate 2 wears, deforms, or is ablated due to long-term contact with slags of different properties, such as wear resistance, high temperature resistance, or anti-coking requirements, there is no need to stop the machine and disassemble the connecting plate 4 and drive mechanism. Simply move the slag discharge orifice plate 2 forward to fully expose it, lift or remove the slag discharge orifice plate 2, and it can be disengaged from the slot 41 by overcoming gravity. A new matching slag discharge orifice plate can be directly replaced, such as a wear-resistant type or an anti-coking type, to quickly restore the equipment operation and significantly reduce maintenance time and costs.
[0042] It should be noted that, apart from the aforementioned split slag discharge plate structure, including the slag discharge orifice plate 2, the clamp head 21, the connecting plate 4, the clamp groove 41 and their connection relationships, the combustion bed, wind box, reciprocating drive device and other structures not described in detail are all the same as or similar to the corresponding structures in a biomass fuel furnace with automatic slag removal disclosed in publication number CN119146429A, and will not be described in detail here.
[0043] In another preferred embodiment, the clamping head 21 is dumbbell-shaped, including a wider expanded section 211 and a narrower constricted section 212. Correspondingly, the clamping groove 41 includes a wider receiving groove 411 and a narrower limiting groove 412 disposed at the front end of the connecting plate 4. The expanded section 211 is adapted to the receiving groove 411, and the narrowed section 212 is adapted to the limiting groove 412 to achieve a clamping engagement of the clamping head 21 within the clamping groove 41. Through the stepped engagement of the clamping head "expanded section 211 - narrowed section 212" and the clamping groove "receiving groove 411 - limiting groove 412", the clamping head is dually limited in both the lateral width direction and the longitudinal height direction within the clamping groove, preventing the slag discharge plate 2 from disengaging or shifting during reciprocating motion, and significantly improving the impact resistance and stability of the connection structure. The width of the necked section 212 is smaller than that of the limiting groove 412, allowing the jack to be quickly inserted and removed in the vertical direction and to detach by overcoming gravity. At the same time, the matching design of the expanded section 211 and the receiving groove 411 prevents it from falling off in the horizontal direction, thus balancing connection reliability and maintenance convenience.
[0044] In another preferred embodiment, a support plate 42 is welded to the front bottom surface of the connecting plate 4 as the bottom wall of the slot 41. The support plate 42 supports the clamping head 21, enhancing the stability of the clamping head 21 and the slot 41. The support plate 42, as the bottom wall of the slot, provides a rigid support surface for the clamping head 21, forming a double-pressure effect with the weight of the slag discharge plate 2, reducing direct wear on the bottom wall of the slot 41. This is particularly suitable for high-frequency impact conditions of high-hardness slag such as semi-coke slag, improving the durability of the connection structure. The welded structure between the support plate and the connecting plate 4 enhances the contact rigidity, reducing the impact of vibration caused by slag impact during slag discharge on the clamping head-slot fit, and preventing power transmission failure due to loosening.
[0045] In another preferred embodiment, the support plate 42 has multiple through holes, through which the support plate 42 and the connecting plate 4 are spot-welded together. The through hole design provides a positioning reference for spot welding, ensuring precise fit between the support plate 42 and the connecting plate 4 and avoiding welding misalignment; at the same time, multi-point welding disperses welding stress through multiple through holes, reducing deformation of the connecting plate caused by local overheating, and improving connection strength and structural consistency. Compared with full welding, the spot welding + through hole structure reduces weld length, lowers material consumption and processing costs, while maintaining sufficient connection rigidity, making it suitable for the high-efficiency processing requirements of mass production.
[0046] In another preferred embodiment, a pad 43 is welded to the bottom middle part of the connecting plate 4 at the sliding fit point of the rear end plate 5 passing through the wind box. The pad 43 is used to prevent wear on the connecting plate 4. Welding the pad 43 in the sliding area where the connecting plate 4 passes through the rear end plate 5 of the wind box transforms the direct friction between the connecting plate body and the rear end plate into wear-resistant contact between the pad and the rear end plate, effectively protecting the connecting plate 4 from edge wear caused by high-frequency reciprocating motion and extending the service life of the core transmission components. The thickness of the pad 43 can be adjusted according to the sliding fit clearance to compensate for machining errors, ensuring smooth sliding of the connecting plate 4 in the sliding hole and avoiding shaking or jamming caused by excessive clearance.
[0047] In another preferred embodiment, the pad 43 has multiple through holes, through which the pad 43 and the connecting plate 4 are spot-welded together. Spot welding through the through holes of the pad 43 rigidly fixes the pad to the bottom surface of the connecting plate 4, enhancing the cooperative stress-bearing capacity of the pad and the connecting plate, preventing the pad from falling off or shifting during high-frequency vibration, and ensuring long-term wear-resistant protection. If the pad 43 needs to be replaced due to wear, only partial disassembly and spot welding are required, eliminating the need to replace the entire connecting plate 4, thus reducing maintenance costs.
[0048] In another preferred embodiment, the reciprocating drive device includes a motor 6 fixed to the machine body behind the combustion bed, and a cylindrical cam 8 fixed to the auger 7. The motor 6 drives the auger 7 and the cylindrical cam 8 to rotate via a chain. A circular hole 44 is opened at the rear end of the connecting plate 4, and an axially vertical roller 9 is installed through the circular hole 44. A roller 10 is rotated at the upper end of the roller 9, and the roller 10 abuts against the cylindrical cam 8. A sliding hole is opened on the rear end plate 5 of the wind box, and the connecting plate 4 slides through the sliding hole and slides with the rear end plate 5 of the wind box. A hanging hole 45 is opened on the connecting plate 4 near the rear end plate 5. One end of the tension spring 12 is hung on the hanging hole 45, and the other end is hung on the furnace body near the roller 10. When the motor 6 drives the auger 7 to rotate for material conveying, the cylindrical cam 8 drives the connecting plate 4 and the slag discharge plate 2 connected thereto to reciprocate. The engagement between the cylindrical cam 8 and the roller 10 converts the rotational motion of the motor 6 into the precise reciprocating linear motion of the connecting plate 4. The cam profile curve controls the stroke and speed, ensuring a stable trajectory for the slag discharge orifice plate 2 and adapting to the removal requirements of different slag types, such as coking slag. A tension spring provides a reverse pulling force, forming a closed-loop force with the cam drive force, eliminating transmission backlash and preventing displacement deviation of the connecting plate 4 due to inertia or resistance during the return stroke, thus ensuring the continuity and reliability of the slag discharge action.
[0049] In another preferred embodiment, an elongated hole 46 is formed on the connecting plate 4 between the circular hole 44 and the hanging hole 45. A vertically oriented screw 13 passes through the elongated hole 46 and is fixed to the furnace body near the roller 10. The head of the screw 13 limits the lower surface of the connecting plate 4, and the nut screwed to the screw limits the upper surface of the connecting plate 4. The head of the screw 13 and the nut respectively limit the vertical displacement of the connecting plate 4. The elongated hole 46 allows the connecting plate 4 to move freely in the front-back direction while limiting its vertical movement, preventing the connecting plate from tilting or derailing due to vibration of the drive mechanism, and improving the stability of the transmission system. The design of the elongated hole 46 can compensate for positional errors during installation, and the preload requirements under different working conditions can be adapted by adjusting the tightness of the nut, enhancing the adaptability of the equipment to different working conditions.
[0050] In another preferred embodiment, such as Figure 7As shown, a hanging ring 47 is fixed on the connecting plate 4 near the rear end plate 5. One end of the tension spring 12 is hung on the hanging ring 47, and the other end is hung on the furnace body near the roller 10. Two opposing guide plates 14 with guide grooves are also fixed on the furnace body. The guide grooves on the guide plates 14 limit the connecting plate 4 to the left and right and up and down. As an alternative to the method of limiting the connecting plate 4 using tension springs and screws in the previous preferred embodiment, this embodiment can effectively eliminate transmission gaps by cooperating with the hanging ring 47 and the tension spring 12, ensuring that the connecting plate 4 maintains a stable force state during movement, making the movement of the slag discharge orifice plate 2 more stable, and improving the accuracy and reliability of slag discharge. Meanwhile, two guide plates 14 with guide grooves fixed to the furnace body limit the connecting plate 4 from the left and right and up and down directions, which can further prevent the connecting plate 4 from shifting, shaking or tilting during reciprocating motion. Compared with the method of limiting only by tension springs and screws, this multi-dimensional limiting structure greatly improves the motion stability of the connecting plate 4 and the slag discharge orifice plate 2 connected to it, reduces vibration and noise during equipment operation, and thus extends the service life of the equipment. Moreover, it can better adapt to slag discharge requirements when facing different working conditions, and ensure the efficient operation of slag discharge.
[0051] In another preferred embodiment, the exposed through holes on the slag discharge orifice plate 2 and the through holes on the bottom plate of the U-shaped orifice plate 1 have the same shape and corresponding positions. The length of the through holes on the slag discharge orifice plate 2 hidden under the bottom plate of the U-shaped orifice plate 1 in the front-back direction is equal to the stroke of the slag discharge orifice plate 2 in its back-and-forth translation. The exposed through holes on the slag discharge orifice plate 2 are completely aligned with the through holes on the bottom plate of the U-shaped orifice plate 1, ensuring a stable ventilation area during combustion and avoiding increased ventilation resistance due to hole position displacement. The length of the hidden through holes is greater than the length of the exposed through holes on the slag discharge orifice plate, avoiding increased ventilation resistance due to hole position obstruction. The through holes on the bottom plates of both the slag discharge orifice plate 2 and the U-shaped orifice plate 1 are elongated oval holes, with their length direction being the front-back direction. The elongated oval hole processing technology is simple, requiring no precise positioning and reducing mold costs. At the same time, the straight design of the hole wall edge reduces the risk of jamming at the slag edges and improves the smoothness of the slag cleaning action.
[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A burner with a split ash discharge plate, comprising a combustion bed formed by a U-shaped perforated plate (1), wherein the bottom plate at the front end of the U-shaped perforated plate (1) is provided with an ash discharge port (11), and an ash discharge perforated plate (2) is provided below the ash discharge port (11), wherein the upper surface of the ash discharge perforated plate (2) is limited by the bottom plate of the U-shaped perforated plate (1), and the lower surface is supported by the front end plate (3) of the wind box, characterized in that, The rear end of the slag discharge orifice plate (2) extends backward to form a clamp (21); it also includes a connecting plate (4) connected to a reciprocating drive device. The front end of the connecting plate (4) has a groove (41) adapted to the clamp (21). The clamp (21) gaps into the groove (41) to achieve the connection between the connecting plate (4) and the slag discharge orifice plate (2). The slag discharge orifice plate (2) presses against the front end plate (3) and the bottom wall of the groove (41) by its own weight, so that the clamp (21) and the groove (41) remain in contact, preventing the slag discharge orifice plate (2) from displacing upward and falling out.
2. The burner with a split ash discharge plate according to claim 1, characterized in that, The card head (21) is dumbbell-shaped, including a wider expanded section (211) and a narrower constricted section (212). Correspondingly, the card slot (41) includes a wider receiving groove (411) and a narrower limiting groove (412) disposed at the front end of the connecting plate (4). The expanded section (211) is adapted to the receiving groove (411), and the narrowed section (212) is adapted to the limiting groove (412) to realize the card head (21) snapping into place in the card slot (41).
3. The burner with a split ash discharge plate according to claim 2, characterized in that, A support plate (42) is welded to the bottom front end of the connecting plate (4) as the bottom wall of the slot (41). The support plate (42) is used to support the card head (21) and enhance the stability of the card head (21) and the slot (41).
4. The burner with a split ash discharge plate according to claim 3, characterized in that, Multiple through holes are provided on the tray (42), and the tray (4) and the connecting plate (4) are spot welded together through the through holes.
5. The burner with a split ash discharge plate according to claim 1, characterized in that, A pad (43) is welded to the sliding fit of the bottom middle part of the connecting plate (4) and the rear end plate (5) passing through the wind box. The pad (43) is used to prevent wear of the connecting plate (4).
6. The burner with a split ash discharge plate according to claim 5, characterized in that, Multiple through holes are provided on the pad (43), and the pad (4) and the connecting plate (4) are spot welded together through the through holes.
7. The burner with a split ash discharge plate according to claim 1, characterized in that, The reciprocating drive device includes a motor (6) fixed on the machine body behind the combustion bed, and a cylindrical cam (8) fixed on the winch (7). The motor (6) drives the winch (7) and the cylindrical cam (8) on it to rotate via a chain. A circular hole (44) is opened at the rear end of the connecting plate (4), and an axially vertical roller (9) is installed through the circular hole (44). A roller (10) is rotated at the upper end of the roller (9), and the roller (10) abuts against the cylindrical cam (8). The rear end of the bellows A sliding hole is opened on the plate (5), and the connecting plate (4) passes through the sliding hole and slides in cooperation with the rear end plate (5) of the bellows; a hanging hole (45) is opened on the connecting plate (4) near the rear end plate (5), one end of the tension spring (12) is hung on the hanging hole (45), and the other end is hung on the furnace body near the roller (10); when the motor (6) drives the auger (7) to rotate for material conveying, the cylindrical cam (8) drives the connecting plate (4) and the slag discharge hole plate (2) connected thereto to reciprocate.
8. The burner with a split ash discharge plate according to claim 7, characterized in that, An elongated hole (46) is provided on the connecting plate (4) between the round hole (44) and the hanging hole (45). A screw (13) is vertically arranged in the axial direction, with its screw passing through the elongated hole (46) and fixed to the furnace body near the roller (10). The head of the screw (13) plays a limiting role on the lower surface of the connecting plate (4), and the nut screwed to the screw plays a limiting role on the upper surface of the connecting plate (4).
9. The burner with a split ash discharge plate according to claim 7, characterized in that, A hanging ring (47) is fixed on the connecting plate (4) near the rear end plate (5). One end of the tension spring (12) is hung on the hanging ring (47), and the other end is hung on the furnace body near the roller (10). Two opposing guide plates (14) with guide grooves are also fixed on the furnace body. The guide grooves on the guide plates (14) limit the connecting plate (4) to the left and right and up and down.
10. The burner with a split ash discharge plate according to claim 1, characterized in that, The exposed through holes on the slag discharge orifice plate (2) and the through holes on the bottom plate of the U-shaped orifice plate (1) have the same shape and corresponding positions. The length of the through holes on the slag discharge orifice plate (2) hidden under the bottom plate of the U-shaped orifice plate (1) in the front-back direction is greater than the length of the through holes exposed on the slag discharge orifice plate. The through holes on the bottom plates of the slag discharge orifice plate (2) and the U-shaped orifice plate (1) are both oblong holes, and their length direction is the front-back direction.