A regenerative box for a heating furnace
Patent Information
- Application Number
- CN202522257450.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-10-24
AI Technical Summary
[0003]现有的蓄热箱热量易通过箱体散失，导致高温烟气的热量无法被蓄热球充分吸收，同时，蓄热球在蓄热和放热过程中往往处于松散状态，气体与蓄热球的接触不够充分，影响热量交换效率，在清灰时，传统蓄热箱多采用单一的固定反吹方式，易形成清灰死角，难以彻底清除蓄热球表面的积灰，随着运行时间的增加，灰尘堆积会显著降低蓄热效率，且积灰排出不够顺畅，需要频繁停机清理，影响生产连续性并缩短蓄热球的使用寿命
蓄热筒采用圆柱形结构并配合隔热设计，内壁耐高温材料与外壁可选隔热层减少热量外泄，使高温烟气的热量更集中地被放置框内的蓄热球吸收；下压板与插环、限位环的密封配合，在蓄热与放热阶段通过压缩蓄热球减小间隙，增加气体与蓄热球的接触面积和接触时间，提升热量交换效率。
Smart Images
Figure CN224719152U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat storage box technology, and specifically relates to a heat storage box for a heating furnace. Background Technology
[0002] In the industrial production field, heat storage boxes, as key equipment for energy recovery and conversion, are mainly used in industrial furnaces and kilns to recover and store the waste heat of high-temperature flue gas. When needed, the heat is released to preheat combustion air or other media, thereby realizing the recycling of energy, reducing energy consumption, and improving the energy utilization efficiency of the production system. It is one of the important devices for achieving energy conservation and emission reduction.
[0003] Existing heat storage boxes easily lose heat through the box body, resulting in insufficient absorption of heat from high-temperature flue gas by the heat storage balls. At the same time, the heat storage balls are often in a loose state during heat storage and release, resulting in insufficient contact between the gas and the heat storage balls, which affects the heat exchange efficiency. During ash removal, traditional heat storage boxes mostly use a single fixed back-flushing method, which easily creates dead corners for ash removal and makes it difficult to thoroughly remove the ash accumulation on the surface of the heat storage balls. As the operating time increases, the accumulation of dust will significantly reduce the heat storage efficiency, and the ash discharge is not smooth, requiring frequent shutdowns for cleaning, affecting the continuity of production and shortening the service life of the heat storage balls. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a heat storage box for a heating furnace.
[0005] To achieve the above objectives, this utility model provides a heat storage box for a heating furnace, including a heat storage cylinder. A support frame is connected to the lower end of the heat storage cylinder, and an air inlet mechanism is connected to the middle of the lower end of the heat storage cylinder. An opening is provided in the middle of the lower end of the heat storage cylinder. A placement frame is connected to the lower part of the inner wall of the heat storage cylinder, and a support ring is connected to the lower end of the inner wall of the placement frame. A heat insulation ring is connected to the upper end of the heat storage cylinder. Cylinders are connected to both sides of the upper end of the heat insulation ring. The lower ends of the two cylinders pass through the heat insulation ring and the heat storage cylinder and extend into the interior of the heat storage cylinder. A lower pressure plate is connected to the lower end of the two cylinders. A plug ring is connected to the lower end of the lower pressure plate. The lower end of the plug ring is connected to the lower end of the inner wall of the placement frame. A limit ring is connected to the lower end of the lower pressure plate corresponding to the outer wall of the plug ring. A dust removal mechanism is connected to the middle of the lower end of the placement frame. An exhaust pipe is connected to the middle of the upper end of the heat storage cylinder, and an exhaust valve is connected to the outer wall of the exhaust pipe. In the above technical solution, the air intake mechanism further includes an air intake cylinder, a smoke inlet pipe connected to the lower part of one side of the air intake cylinder, a filter frame connected to the lower end of the inner wall of the smoke inlet pipe, one end of the filter frame extending through to one side of the smoke inlet pipe, filter screens connected to the inner wall of the filter frame, a smoke inlet valve connected to one side of the outer wall of the smoke inlet pipe, the lower end of the smoke inlet pipe connected to the upper end of the air intake cylinder, one end of the smoke inlet pipe being arc-shaped, a smoke inlet opening on one side of the upper end of the smoke inlet pipe, an air intake pipe connected to the end of the air intake cylinder away from the smoke inlet pipe, one end of the air intake pipe sequentially passing through the air intake cylinder and the smoke inlet pipe and extending into the interior of the smoke inlet pipe, one end of the air intake pipe being arc-shaped, an air outlet opening at the upper end of the air intake pipe corresponding to the arc, and the lower end of the air intake pipe connected to the middle of the lower end of the inner wall of the smoke inlet pipe via a fixing block.
[0006] In the above technical solution, further, guide rods are connected to both sides of the upper end of the lower pressure plate, and the upper ends of the two guide rods pass through the heat storage cylinder and the heat insulation ring in sequence and extend to the upper end of the heat insulation ring. The lower end of the limiting ring is set with a semi-arc structure, and an arc-shaped groove is opened at the upper end of the support ring. The lower end of the limiting ring is inserted into the upper part of the support ring. In the above technical solution, the dust removal mechanism further includes a connecting cylinder, a rotating rod connected to the middle of the lower end of the inner wall of the connecting cylinder, the upper end of the rotating rod extending through into the interior of the placement frame, a stirring rod circumferentially connected to the upper part of the outer wall of the rotating rod, a plurality of the stirring rods being located inside the placement frame, and a rotating fan blade circumferentially connected to the lower part of the outer wall of the rotating rod, a plurality of the rotating fan blades being located inside the connecting cylinder. In the above technical solution, a gas supply pipe is further connected to the lower part of one side of the connecting cylinder, one end of the gas supply pipe extends through into the interior of the heat storage cylinder, a gas supply valve is connected to one side of the outer wall of the gas supply pipe, and exhaust ports are circumferentially opened on the upper part of the outer wall of the connecting cylinder. In the above technical solution, further, a connecting pipe is connected to the inner wall of the heat storage cylinder below the placement frame. The connecting pipe is arc-shaped. A fixed pipe is connected to the middle of one side of the connecting pipe. A fixed valve is connected to the outer wall of the fixed pipe. Backflush nozzles are circumferentially connected to the inner wall of the connecting pipe. The backflush nozzles are inclined.
[0007] In the above technical solution, a material collecting plate is further connected to the inner wall of the heat storage cylinder below the connecting cylinder, and a discharge pipe is connected to the middle of the lower end of the material collecting plate. The lower end of the discharge pipe extends to the lower end of the opening and extends through to one side of the air inlet cylinder. The lower end of the discharge pipe is inclined.
[0008] Compared with the prior art, the present invention has the following beneficial effects: The heat storage cylinder adopts a cylindrical structure with heat insulation design. The high-temperature resistant material on the inner wall and the optional heat insulation layer on the outer wall reduce heat leakage, so that the heat of the high-temperature flue gas is more concentratedly absorbed by the heat storage balls placed in the frame. The sealing fit between the lower pressure plate and the insertion ring and the limiting ring reduces the gap by compressing the heat storage balls during the heat storage and heat release stages, increases the contact area and contact time between the gas and the heat storage balls, and improves the heat exchange efficiency.
[0009] The dust removal mechanism achieves efficient dust removal through a combination of mechanical stirring and gas backflushing. The rotating fan blades, driven by high-pressure gas, drive the stirring rod to agitate the heat storage balls, using the collision and friction of the natural accumulation state to remove dust. The inclined backflushing nozzles blow from the bottom upwards, blowing the detached dust onto the collection plate. Combined with the arc-shaped collection plate and the inclined discharge pipe, the dust-containing impurities are quickly discharged. This design avoids the dust removal dead zones of traditional fixed backflushing, reduces the impact of dust accumulation on heat storage efficiency, and extends the service life of the heat storage balls. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of the device proposed in this utility model; Figure 2 This is a cross-sectional view of the device proposed in this utility model; Figure 3 This is a schematic diagram of the installation structure of the smoke inlet pipe proposed in this utility model; Figure 4 This is a schematic diagram of the installation structure of the rotating fan blades proposed in this utility model; Figure 5 This is a schematic diagram of the connection structure between the limiting ring and the supporting ring proposed in this utility model.
[0011] In the diagram: 1. Heat storage cylinder; 2. Support frame; 3. Air inlet cylinder; 4. Smoke inlet pipe; 5. Filter frame; 6. Air inlet pipe; 7. Opening; 8. Placement frame; 9. Support ring; 10. Heat insulation ring; 11. Cylinder; 12. Lower pressure plate; 13. Insert ring; 14. Limiting ring; 15. Connecting cylinder; 16. Rotating rod; 17. Stirring rod; 18. Rotating fan blade; 19. Air supply pipe; 20. Exhaust port; 21. Connecting pipe; 22. Backflush nozzle; 23. Collector plate; 24. Discharge pipe; 25. Exhaust pipe. Detailed Implementation To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0012] like Figures 1-5 The image shows a heat storage box for a heating furnace.
[0013] The device includes a heat storage cylinder 1, a support frame 2 connected to its lower end, an air intake mechanism connected to the middle of the lower end of the heat storage cylinder 1, an opening 7 in the middle of the lower end of the heat storage cylinder 1, a placement frame 8 connected to the lower part of the inner wall of the heat storage cylinder 1, a support ring 9 connected to the lower end of the inner wall of the placement frame 8, a heat insulation ring 10 connected to the upper end of the heat storage cylinder 1, cylinders 11 connected to both sides of the upper end of the heat insulation ring 10, the lower ends of the two cylinders 11 passing through the heat insulation ring 10 and the heat storage cylinder 1 and extending into the interior of the heat storage cylinder 1, and a lower pressure plate 12 connected to the lower end of the two cylinders 11, with guide rods connected to both sides of the upper end of the lower pressure plate 12. The upper ends of the two guide rods pass through the heat storage cylinder 1 and the heat insulation ring 10 in sequence and extend to the upper end of the heat insulation ring 10. The lower end of the limiting ring 14 is set with a semi-arc structure. The upper end of the support ring 9 is provided with an arc-shaped groove. The lower end of the limiting ring 14 is inserted into the upper part of the support ring 9. The lower end of the lower pressure plate 12 is connected to the insertion ring 13. The lower end of the insertion ring 13 is connected to the lower end of the inner wall of the placement frame 8. The lower end of the lower pressure plate 12 is connected to the limiting ring 14 corresponding to the outer wall of the insertion ring 13. The middle part of the lower end of the placement frame 8 is connected to a dust removal mechanism. The middle part of the upper end of the heat storage cylinder 1 is connected to an exhaust pipe 25. The outer wall of the exhaust pipe 25 is connected to an exhaust valve. The heat storage cylinder 1 is a cylindrical body closed at both ends. Its inner wall is made of high-temperature resistant material to adapt to the high-temperature environment inside. The outer wall can be wrapped with a heat insulation layer as needed to reduce heat loss. The support frame 2 is fixedly connected to the bottom of the heat storage cylinder 1 by bolts, which can provide stable support for the entire device and prevent the heat storage cylinder 1 from directly contacting the ground, which would cause bottom wear or corrosion from ground moisture. The air intake mechanism is connected to the inside of the heat storage cylinder 1 to provide high-temperature flue gas or room-temperature gas to the heat storage cylinder 1. The opening 7 facilitates the entry of high-temperature flue gas or room-temperature gas into the heat storage cylinder 1. The placement frame 8 has vent holes on its side walls and bottom to allow gas to pass smoothly and prevent the heat storage ball from falling. The support ring 9 is used to receive and position the limiting ring 14. The heat insulation ring 10 can block the high temperature inside the heat storage cylinder 1 from being transmitted to the cylinder 11, protecting the cylinder. 11. Under normal operation, the lower pressure plate 12 can move up and down under the drive of the cylinder 11 to compress or release the heat storage ball. The guide rod is used to guide the lower pressure plate 12 to move in the vertical direction to prevent it from deviating during the movement. The guide rod has a sliding sealing structure at the hole through which it passes through the heat storage cylinder 1 and the heat insulation ring 10. This ensures smooth movement of the guide rod and reduces internal heat leakage. The insertion ring 13 can be inserted into the placement frame 8 to further improve the sealing effect between the lower pressure plate 12 and the placement frame 8 and prevent gas from leaking from the gap between them. The dust removal mechanism can clean the heat storage ball in the placement frame 8 and remove the dust attached to its surface. The exhaust pipe 25 is used to discharge the gas that flows through the heat storage ball during the heat storage or heat release process. The gas discharge state can be adjusted by controlling the opening and closing of the exhaust valve.
[0014] The air intake mechanism includes an air intake cylinder 3, a smoke inlet pipe 4 connected to the lower part of one side of the air intake cylinder 3, a filter frame 5 connected to the lower end of the inner wall of the smoke inlet pipe 4, one end of the filter frame 5 extending through to one side of the smoke inlet pipe 4, and filter screens connected to the inner wall of the filter frame 5. A smoke inlet valve is connected to one side of the outer wall of the smoke inlet pipe 4. The lower end of the smoke inlet pipe 4 is connected to the upper end of the air intake cylinder 3. One end of the smoke inlet pipe 4 is arc-shaped. A smoke inlet is opened on one side of the upper end of the smoke inlet pipe 4. An air intake pipe 6 is connected to the end of the air intake cylinder 3 away from the smoke inlet pipe 4. One end of the air intake pipe 6 passes through the air intake cylinder 3 and the smoke inlet pipe 4 in sequence and extends into the interior of the smoke inlet pipe 4. One end of the air intake pipe 6 is arc-shaped. An air outlet is opened at the upper end of the air intake pipe 6 corresponding to the arc. The lower end of the air intake pipe 6 is connected to the middle of the lower end of the inner wall of the smoke inlet pipe 4 through a fixing block. The intake cylinder 3 serves as a gas transfer and distribution unit. The filter frame 5 facilitates the cleaning or replacement of the filter screen later. The filter screen can filter the incoming high-temperature flue gas, removing large particulate impurities and preventing impurities from adhering to the surface of the heat storage ball and affecting the heat exchange efficiency. By controlling the opening and closing of the flue gas inlet valve, the amount of high-temperature flue gas entering can be adjusted. The arc-shaped structure of the flue gas inlet pipe 4 can reduce the flow resistance of high-temperature flue gas in the flue gas inlet pipe 4, allowing the flue gas to enter the intake cylinder 3 more smoothly. The arc-shaped structure at one end of the intake pipe 6 can make the room temperature gas diffuse more evenly when it is discharged. The outlet is used to exhaust the room temperature gas in the intake pipe 6.
[0015] The dust removal mechanism includes a connecting cylinder 15. A rotating rod 16 is connected to the lower middle part of the inner wall of the connecting cylinder 15. The upper end of the rotating rod 16 extends through into the placement frame 8. A stirring rod 17 is circumferentially connected to the upper part of the outer wall of the rotating rod 16. Multiple stirring rods 17 are located inside the placement frame 8. Rotating fan blades 18 are circumferentially connected to the lower part of the outer wall of the rotating rod 16. Multiple rotating fan blades 18 are located inside the connecting cylinder 15. A gas supply pipe 19 is connected to the lower part of one side of the connecting cylinder 15. The gas supply pipe 19 is connected to a high-pressure gas source. One end of the gas supply pipe 19 extends through into the heat storage cylinder 1. A gas supply valve is connected to one side of the outer wall of the gas supply pipe 19. The heat storage cylinder 1 has an exhaust port 20 in the circumferential direction. A connecting pipe 21 is connected to the inner wall of the heat storage cylinder 1 below the placement frame 8. The connecting pipe 21 is arc-shaped. A fixed pipe is connected to the middle of one side of the connecting pipe 21. A fixed valve is connected to the outer wall of the fixed pipe. Backflush nozzles 22 are connected to the inner wall of the connecting pipe 21 in the circumferential direction. The backflush nozzles 22 are inclined. A collection plate 23 is connected to the inner wall of the heat storage cylinder 1 below the connecting cylinder 15. A discharge pipe 24 is connected to the middle of the lower end of the collection plate 23. The lower end of the discharge pipe 24 extends to the lower end of the opening 7 and extends through to the side of the air inlet cylinder 3. The lower end of the discharge pipe 24 is inclined. The connecting cylinder 15 provides installation space for the rotating rod 16 and the rotating fan blades 18. A bearing is provided between the rotating rod 16 and the connecting cylinder 15, allowing the rotating rod 16 to rotate flexibly. The stirring rod 17, driven by the rotating rod 16, agitates the heat storage balls, causing them to collide with each other. Multiple rotating fan blades 18 are symmetrically distributed and, under the impact of high-pressure gas, can drive the rotating rod 16 to rotate. The gas supply pipe 19 is used to supply high-pressure gas into the connecting cylinder 15. The gas supply valve controls the supply volume and state of the high-pressure gas. The exhaust port 20 is used to discharge residual gas after driving the rotating fan blades 18. The cylinder 15 and connecting pipe 21 are connected to an external air source. The fixed pipe provides a channel for the backflush gas to enter the connecting pipe 21. The fixed valve is used to control the flow of the backflush gas. The inclined backflush nozzle 22 can make the backflush gas spray upward, which can more effectively blow the bottom of the heat storage ball and blow up the dust. The cross-section of the collecting plate 23 is set in a V-shape, which can collect the falling dust. The discharge pipe 24 is used to discharge the dust-containing impurities collected on the collecting plate 23. The opening and closing of the discharge pipe 24 can be controlled by the discharge valve to control the discharge of impurities.
[0016] Working principle: The inlet valve is open and the valve of the inlet pipe 6 is closed. High-temperature flue gas enters through the inlet of the inlet pipe 4. After being intercepted by the filter screen in the filter frame 5, large particles of impurities are blocked. The flue gas then flows into the inlet cylinder 3 and upwards into the heat storage cylinder 1. At this time, the cylinder 11 is in the extended state. The lower pressure plate 12 compresses the heat storage ball. The lower pressure plate 12 moves down, and the insert ring 13 is inserted into the lower end of the inner wall of the placement frame 8 to achieve a seal. The limit ring 14 is inserted into the arc-shaped groove of the support ring 9. The heat storage ball in the placement frame 8 is compressed. The flue gas passes upwards from the bottom of the placement frame 8 through the dense heat storage ball layer. The heat is fully absorbed and stored by the heat storage ball. The exhaust valve of the exhaust pipe 25 is opened, and the cooled flue gas is discharged through the exhaust pipe 25 at the upper end of the heat storage cylinder 1. During this stage, the gas supply valve of the inlet pipe 6 is closed, and the ash removal mechanism stops working. The compression state ensures that the contact area between the flue gas and the heat storage ball is maximized, improving the heat storage efficiency. The cooled flue gas is discharged from the exhaust pipe 25.
[0017] When heat needs to be released to preheat the air, the flue valve is closed, and room temperature gas is introduced through the air inlet pipe 6. After the gas diffuses evenly through the arc-shaped outlet at the end of the air inlet pipe 6, it enters the placement frame 8 upwards. At this time, the cylinder 11 remains in the extended state, and the heat storage ball remains in the compressed state. When the room temperature gas passes through the dense heat storage ball layer, it comes into full contact with the high temperature heat storage ball, absorbs heat and rises in temperature. The heated high temperature gas is discharged through the exhaust pipe 25 to the furnace and other heat-using equipment to complete the heat transfer. The compressed state at this stage ensures efficient heat exchange between the cold gas and the heat storage ball and reduces heat loss.
[0018] When dust accumulation on the surface of the heat storage balls affects the heat exchange efficiency, the dust removal mechanism is activated. The cylinder 11 contracts, causing the lower pressure plate 12 to move upward. The insertion ring 13 separates from the lower end of the inner wall of the placement frame 8, and the limiting ring 14 disengages from the slot of the support ring 9. The heat storage balls lose pressure constraint and are in a natural accumulation state, increasing the gap between the heat storage balls. The gas supply pipe 19 opens the gas supply valve, and high-pressure gas enters the connecting cylinder 15, impacting the rotating fan blade 18 and driving the rotating rod 16 to rotate. The stirring rod 17 rotates synchronously with the rotating rod 16, causing the naturally accumulated heat storage balls to collide and rub back and forth, causing the dust attached to the surface to fall off. At the same time, the fixed valve of the connecting pipe 21 opens, and the back-blowing gas is sprayed out through the inclined back-blowing nozzle 22, blowing upward along the bottom of the placement frame 8, blowing up the fallen dust and carrying it to the collection plate 23. The dust-laden gas is collected along the inclined surface of the collection plate 23 to the discharge pipe 24, the discharge valve is opened, and finally discharged through the discharge pipe 24, completing the dust removal.
[0019] After the dust removal is completed, the cylinder 11 extends again, the lower pressure plate 12 moves down to recompress the heat storage ball, and the device resets to the heat storage or heat release state to achieve cyclic operation.
[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A heat storage tank for a heating furnace, comprising a heat storage cylinder (1), characterized in that, The heat storage cylinder (1) is connected to a support frame (2) at its lower end. An air intake mechanism is connected to the middle of the lower end of the heat storage cylinder (1). An opening (7) is provided in the middle of the lower end of the heat storage cylinder (1). A placement frame (8) is connected to the lower part of the inner wall of the heat storage cylinder (1). A support ring (9) is connected to the lower end of the inner wall of the placement frame (8). A heat insulation ring (10) is connected to the upper end of the heat storage cylinder (1). Cylinders (11) are connected to both sides of the upper end of the heat insulation ring (10). The lower ends of the two cylinders (11) sequentially pass through the heat insulation ring (10) and the heat storage cylinder (2). 1) and extends into the heat storage cylinder (1), the lower ends of the two cylinders (11) are connected to a lower pressure plate (12), the lower end of the lower pressure plate (12) is connected to a plug ring (13), the lower end of the plug ring (13) is connected to the lower end of the inner wall of the placement frame (8), the lower end of the lower pressure plate (12) is connected to the outer wall of the plug ring (13) and a limit ring (14) is connected, the middle of the lower end of the placement frame (8) is connected to a dust removal mechanism, the middle of the upper end of the heat storage cylinder (1) is connected to an exhaust pipe (25), and the outer wall of the exhaust pipe (25) is connected to an exhaust valve.
2. The heat storage tank for a heating furnace according to claim 1, characterized in that, The air intake mechanism includes an air intake cylinder (3), a smoke inlet pipe (4) is connected to the lower part of one side of the air intake cylinder (3), a filter frame (5) is connected to the lower end of the inner wall of the smoke inlet pipe (4), one end of the filter frame (5) extends through to one side of the smoke inlet pipe (4), the inner wall of the filter frame (5) is connected to a filter screen, a smoke inlet valve is connected to one side of the outer wall of the smoke inlet pipe (4), the lower end of the smoke inlet pipe (4) is connected to the upper end of the air intake cylinder (3), and one end of the smoke inlet pipe (4) is set in an arc shape. The upper end of the smoke inlet pipe (4) is provided with a smoke inlet port. The air inlet cylinder (3) is connected to an air inlet pipe (6) at the end away from the smoke inlet pipe (4). One end of the air inlet pipe (6) passes through the air inlet cylinder (3) and the smoke inlet pipe (4) and extends into the inside of the smoke inlet pipe (4). One end of the air inlet pipe (6) is arranged in an arc shape. The upper end of the air inlet pipe (6) is provided with an air outlet corresponding to the arc. The lower end of the air inlet pipe (6) is connected to the lower middle part of the inner wall of the smoke inlet pipe (4) through a fixing block.
3. A heat storage tank for a heating furnace according to claim 1, characterized in that, The upper end of the lower pressure plate (12) is connected to guide rods on both sides. The upper ends of the two guide rods pass through the heat storage cylinder (1) and the heat insulation ring (10) in sequence and extend to the upper end of the heat insulation ring (10). The lower end of the limiting ring (14) is set in a semi-arc structure. The upper end of the support ring (9) is provided with an arc-shaped groove. The lower end of the limiting ring (14) is inserted into the upper part of the support ring (9).
4. A heat storage tank for a heating furnace according to claim 1, characterized in that, The dust removal mechanism includes a connecting cylinder (15), a rotating rod (16) is connected to the middle of the lower end of the inner wall of the connecting cylinder (15), the upper end of the rotating rod (16) extends through into the interior of the placement frame (8), a stirring rod (17) is circumferentially connected to the upper part of the outer wall of the rotating rod (16), a plurality of the stirring rods (17) are located inside the placement frame (8), a rotating fan blade (18) is circumferentially connected to the lower part of the outer wall of the rotating rod (16), a plurality of the rotating fan blades (18) are located inside the connecting cylinder (15).
5. A heat storage tank for a heating furnace according to claim 4, characterized in that, A gas supply pipe (19) is connected to the lower part of one side of the connecting cylinder (15). One end of the gas supply pipe (19) extends through into the interior of the heat storage cylinder (1). A gas supply valve is connected to one side of the outer wall of the gas supply pipe (19). An exhaust port (20) is circumferentially opened on the upper part of the outer wall of the connecting cylinder (15).
6. A heat storage tank for a heating furnace according to claim 1, characterized in that, The inner wall of the heat storage cylinder (1) is connected to a connecting pipe (21) below the placement frame (8). The connecting pipe (21) is arc-shaped. A fixed pipe is connected to the middle of one side of the connecting pipe (21). A fixed valve is connected to the outer wall of the fixed pipe. Backflush nozzles (22) are circumferentially connected to the inner wall of the connecting pipe (21). The backflush nozzles (22) are inclined.
7. A heat storage tank for a heating furnace according to claim 1, characterized in that, The inner wall of the heat storage cylinder (1) is connected to a material collection plate (23) below the connecting cylinder (15). The middle of the lower end of the material collection plate (23) is connected to a discharge pipe (24). The lower end of the discharge pipe (24) extends to the lower end of the opening (7) and extends through to one side of the air inlet cylinder (3). The lower end of the discharge pipe (24) is set in an inclined shape.