Curved-surface hearth type efficient heat conduction calcining furnace structure

Abstract

The utility model relates to the technical field of calcining furnaces, and discloses a curved surface hearth type efficient heat conduction calcining furnace structure which comprises a base and a shell, the shell is fixedly connected to the upper side of the base, the left side of the shell is rotationally connected with a front side door, the left side of the front side door is rotationally connected with a motor, and the driving end of the motor is fixedly connected with a support. A rotating assembly is arranged in the front side door, a feeding opening is fixedly connected to the upper side of the front side door, a ventilation pipe is fixedly connected to the upper side of the feeding opening, a fixing assembly is designed on the upper side of the ventilation pipe, and a hose is fixedly connected to the upper side of the ventilation pipe. According to the utility model, the reverse rotation design is adopted, so that materials are prevented from being locally overheated under bidirectional disturbance, and the heat conduction and calcination quality is obviously improved; the ventilation pipe is of a convenient dismounting structure and is matched with the induced draft fan to form directional airflow, exhaust gas discharge and heat flow convergence are accelerated, and efficient and stable operation of equipment is guaranteed.

Description

A curved furnace type high-efficiency heat conduction calcining furnace structure Technical Field

[0001] This utility model relates to the field of calcining furnace technology, and in particular to a curved furnace chamber type high-efficiency heat conduction calcining furnace structure. Background Technology

[0002] In industrial production, calcination is widely used in various industries such as chemical engineering, metallurgy, and building materials, and is a key step in realizing the transformation of the physicochemical properties of materials. Highly efficient, energy-saving, and environmentally friendly calcination equipment is of great significance for improving product quality and reducing production costs.

[0003] Currently, most commercially available calcining furnaces employ a single rotating or static furnace structure. In a single rotating furnace, the material moves only in one direction, easily leading to uneven heating in certain areas. This results in some materials being over-calcined while others fail to react fully, affecting product quality stability. Furthermore, the ventilation system of traditional calcining furnaces is typically fixed, making disassembly cumbersome and time-consuming during maintenance or cleaning. This not only increases maintenance costs but can also lead to the accumulation of exhaust gases inside the furnace due to poor ventilation, reducing heat transfer efficiency and increasing energy consumption. To address these technical problems, this application proposes a curved furnace chamber structure for a high-efficiency heat transfer calcining furnace. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a curved furnace-type high-efficiency heat conduction calcining furnace structure. The unique reverse rotation design prevents local overheating of materials under bidirectional disturbance, significantly improving heat conduction and calcination quality. The ventilation pipe adopts a convenient disassembly and assembly structure, which, together with the induced draft fan, forms a directional airflow, accelerating the discharge of waste gas and the convergence of heat flow, reducing energy consumption. The two complement each other, ensuring the efficient and stable operation of the equipment in all aspects.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A curved furnace-type high-efficiency heat conduction calcining furnace structure includes a base and an outer shell. The outer shell is fixedly connected to the upper side of the base. A front door is rotatably connected to the left side of the outer shell. A motor is rotatably connected to the left side of the front door. A support is fixedly connected to the drive end of the motor. A rotating assembly is provided inside the front door. A feeding port is fixedly connected to the upper side of the front door. A ventilation pipe is fixedly connected to the upper side of the feeding port. A fixing assembly is designed on the upper side of the ventilation pipe. A flexible hose is fixedly connected to the upper side of the ventilation pipe. An induced draft fan is fixedly connected to the other end of the flexible hose. The lower side of the induced draft fan is fixedly connected to the upper side inside the base. A rear door is rotatably connected to the rear side of the outer shell.

[0007] Furthermore, the fixing component includes a connecting block one fixedly connected to the lower side of the ventilation pipe, a connecting block two fixedly connected to the upper side of the feeding port, a screw rotatably connected inside the connecting block two, and a knob threadedly connected to the left side of the screw.

[0008] Furthermore, the rotating assembly includes a large gear fixedly connected to the rotating end of the motor, a rotating shaft fixedly connected inside the large gear, a small gear meshing with the upper side of the rotating shaft, a gear ring meshing with the outer wall of the small gear, a reaction furnace fixedly connected to the right side of the gear ring, and the outer wall of the reaction furnace rotatably connected to the inner wall of the outer shell.

[0009] Furthermore, the first connecting block has a hole inside, and the second connecting block has a groove in the middle.

[0010] Furthermore, the inner wall of the pinion is rotatably connected to the inside of the front door, and the gear ring is rotatably connected to the inside of the front door.

[0011] Furthermore, a connecting column is fixedly connected to the outer arm of the rotating shaft, and an auxiliary block is fixedly connected to the other end of the connecting column.

[0012] Furthermore, a fixed shaft is fixedly connected to the inner wall of the reactor, and a fixed ring is fixedly connected to the other end of the fixed shaft. The inner wall of the fixed ring is rotatably connected to the outer wall of the rotating shaft.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this invention, a large gear is driven by a motor to rotate, causing the rotating shaft and the auxiliary stirring structure to rotate clockwise; simultaneously, the large gear drives the small gear to rotate the gear ring and the reactor counterclockwise. This reverse rotation design causes the material to be subjected to multi-directional disturbance in the furnace, avoiding local overheating or uneven calcination, and significantly improving heat transfer efficiency and calcination quality.

[0015] 2. In this utility model, the ventilation pipe adopts a clever and convenient disassembly design, working efficiently with the equipment. During installation, align the ventilation pipe with the upper interface of the feeding port, rotate the screw to make the knob tightly engage with a groove on the connecting block, and achieve quick installation through symmetrical fixation at the four corners; disassembly is achieved by reversing the operation, greatly reducing the difficulty of maintenance and cleaning. During operation, the ventilation pipe serves as a key passage of the induced draft system. After the induced draft fan starts, it can quickly draw away the high-temperature exhaust gas from the furnace and introduce fresh air, forming a directional circulating airflow, expelling harmful gases and maintaining clean air inside the furnace. At the same time, the directional airflow causes the hot airflow to converge in the center of the furnace, increasing the central heat flux density, enhancing heat concentration, reducing energy consumption, and improving calcination efficiency. Attached Figure Description

[0016] Figure 1 is a perspective view of a curved furnace type high-efficiency heat conduction calcining furnace structure proposed in this utility model;

[0017] Figure 2 is a schematic diagram of the large gear structure of a curved furnace-type high-efficiency heat conduction calcining furnace proposed in this utility model.

[0018] Figure 3 is a schematic diagram of the rear door structure of a curved furnace-type high-efficiency heat conduction calcining furnace proposed in this utility model.

[0019] Figure 4 is a schematic diagram of the screw structure of a curved furnace type high-efficiency heat conduction calcining furnace proposed in this utility model.

[0020] Legend:

[0021] 1. Motor; 2. Support; 3. Exhaust fan; 4. Base; 5. Housing; 6. Hose; 7. Ventilation pipe; 8. Feed port; 9. Connecting block one; 10. Knob; 11. Screw; 12. Connecting block two; 13. Front door; 14. Pinion; 15. Gear; 16. Gear ring; 17. Reactor; 18. Rotating shaft; 19. Rear door; 20. Auxiliary block; 21. Fixing ring; 22. Connecting column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Referring to Figures 1, 2, and 4, one embodiment of this utility model is provided: a curved furnace type high-efficiency heat conduction calcining furnace structure, including a base 4 and a shell 5. The shell 5 is fixedly connected to the upper side of the base 4. A front door 13 is rotatably connected to the left side of the shell 5. A motor 1 is rotatably connected to the left side of the front door 13. A support 2 is fixedly connected to the drive end of the motor 1. A large gear 15 is provided inside the front door 13. A rotating shaft 18 is fixedly connected inside the large gear 15. A small gear 14 is meshed on the upper side of the rotating shaft 18. A gear ring 16 is meshed on the outer wall of the small gear 14. A reaction furnace 17 is fixedly connected to the right side of the gear ring 16. The reaction furnace 17 is rotatably connected inside the shell 5. A feeding port 8 is fixedly connected to the upper side of the front door 13. A ventilation pipe 7 is fixedly connected to the upper side of the feeding port 8. A connecting block 1 9 is designed on the upper side of the ventilation pipe 7. A connecting block 2 12 is fixedly connected to the upper side of the feeding port 8. A screw 11 is rotatably connected inside the connecting block 2 12. A knob 10 is threadedly connected to the left side of the screw 11. A flexible hose 6 is fixedly connected to the upper side of the ventilation pipe 7. A blower 3 is fixedly connected to the other end of the flexible hose 6. The blower 3 is fixedly connected to the upper side of the inside of the base 4. A rear door 19 is rotatably connected to the rear side of the outer casing 5.

[0024] Specifically, during the use of the device, first fix the ventilation pipe 7 to maintain internal ventilation. Fix the ventilation pipe 7 at the interface on the upper side of the feeding port 8, rotate the screw 11 upwards, and rotate the knob 10. The knob 10 will move downwards so that it can be locked into the groove on the upper side of the connecting block 9. The same applies to the four corners to complete the fixing of the ventilation pipe 7. After the interface is completed, the motor 1 can be started. The rotation of the motor 1 will drive the large gear 15 to rotate, thereby driving the rotating shaft 18 to rotate. This causes the connecting column 22 and the auxiliary block 20 attached to the outer wall of the rotating shaft 18 to rotate, thereby stirring the inside of the device and accelerating the calcination speed inside the device. Furthermore, the rotation of the large gear 15 drives the small gear 14 to rotate, which in turn drives the front door 13 to rotate. This causes the reactor 17, which is fixedly connected to it, to rotate accordingly. During this process, if the motor 1 rotates clockwise, the large gear 15 will also rotate clockwise; if the small gear 14 rotates counterclockwise, the small gear 14 will also rotate counterclockwise. Since the small gear 14, large gear 15, and gear ring 16 are all rotatably connected inside the front door 13, they will not move arbitrarily. The small gear 14 and large gear 15 move in opposite directions, thus the rotating shaft 18 connected to them rotates in the opposite direction to the reactor 17, which is beneficial for the calcination process inside the device. The reactor 17 inside the device is designed with narrower sides and a wider interior, with a recessed center, allowing hot air to converge towards the center of the furnace, increasing the heat flux density in the central area and thus improving calcination efficiency. After calcination, the rear door 19 can be opened to remove the calcined product.

[0025] Referring to Figure 3, connecting block 1 9 has a hole inside, and connecting block 2 12 has a groove in the middle. A small gear 14 is rotatably connected to the inside of the front door 13, and a gear ring 16 is rotatably connected to the inside of the front door 13. A connecting column 22 is fixedly connected to the outer arm of the rotating shaft 18, and an auxiliary block 20 is fixedly connected to the other end of the connecting column 22. A fixed shaft is fixedly connected to the inner wall of the reactor 17, and a fixed ring 21 is fixedly connected to the other end of the fixed shaft. The fixed ring 21 is rotatably connected to the outer wall of the rotating shaft 18.

[0026] Specifically, the curved furnace-type high-efficiency heat conduction calcining furnace structure provided by this utility model has a basic structure in which the base 4 and the outer shell 5 form a stable support system. The front door 13, which is rotatably connected to the left side of the outer shell 5, becomes the core hub for the operation of the equipment. The motor 1, which is rotatably connected to the left side of the front door 13, is fixed by the support 2, and its drive end is connected to the large gear 15 to form a power source. The rotating shaft 18 fixed inside the large gear 15, together with the small gear 14 meshing on the upper side and the gear ring 16 meshing on the outer wall, forms a precision transmission system, which allows the reaction furnace 17, which is fixed to the right side of the gear ring 16, to rotate flexibly inside the outer shell 5. The feeding port 8 on the upper side of the front door 13 is connected to the ventilation pipe 7 by a fixed structure composed of connecting block 1 9, connecting block 2 12, screw 11 and knob 10. The ventilation pipe 7 is connected to the induced draft fan 3 on the upper side of the base 4 through the hose 6, while the rear door 19, which is rotatably connected to the rear side of the outer shell 5, provides convenience for the removal of the calcined product. During the use of the device, first align the ventilation pipe 7 with the upper interface of the feeding port 8. Then, rotate the screw 11 upwards and the knob 10 downwards to move it into the upper groove of the connecting block 9. Operate simultaneously at all four corners to securely fix the ventilation pipe 7, ensuring smooth internal ventilation. After the interface is connected, start the motor 1. The rotation of motor 1 drives the large gear 15 to rotate, which in turn drives the rotating shaft 18 to rotate. This causes the connecting column 22 and auxiliary block 20 on the outer wall of the rotating shaft 18 to rotate, stirring the materials inside the device and accelerating the calcination speed. Simultaneously, the rotation of the large gear 15 drives the small gear 14 to rotate in the opposite direction. The small gear 14 then drives the front door 13 to rotate, causing the reactor 17 fixed to it to rotate as well. When motor 1 rotates clockwise, the large gear 15 rotates clockwise, while the small gear 14 rotates counterclockwise. Since the small gear 14, large gear 15, and gear ring 16 are all securely connected to the front door 13, stable movement is ensured. The counterclockwise rotation of the small gear 14 and large gear 15 causes the rotating shaft 18 and the reactor 17 to rotate in opposite directions, greatly improving the calcination effect inside the device. Furthermore, the reactor 17 employs a unique design that is narrower on both sides, wider inside, and recessed in the middle, prompting the hot airflow to converge towards the center of the furnace, increasing the heat flux density in the central area, and further improving calcination efficiency. After calcination is complete, the calcined product can be easily removed by opening the rear door 19.

[0027] Working Principle: After motor 1 starts, its drive end drives support 2, which in turn drives the large gear 15 to rotate. The large gear 15 is fixedly connected to the rotating shaft 18, causing the rotating shaft 18 to rotate clockwise. The connecting column 22 and auxiliary block 20, fixed to the outer wall of the rotating shaft 18, rotate accordingly, stirring the materials inside the device and accelerating material mixing and heat exchange. At the same time, the large gear 15 drives the small gear 14 to rotate counterclockwise through meshing transmission. The small gear 14 then meshes with the gear ring 16, driving the reaction furnace 17, which is fixedly connected to the gear ring 16, to rotate counterclockwise. Since the small gear 14, large gear 15, and gear ring 16 are all stably rotatably connected inside the front door 13, the stability of the transmission process is ensured, realizing the opposite rotation of the rotating shaft 18 and the reaction furnace 17, enhancing the tumbling and disturbance effect of the materials during the calcination process. Before the equipment is put into use, a ventilation system is built through a mechanically fixed structure. Align the ventilation pipe 7 with the upper interface of the feeding port 8, and secure it using the holes in connecting block 1 9 and the grooves in connecting block 2 12, along with the screw 11 and knob 10. After rotating the screw 11 upwards, rotate the knob 10 to move it downwards along the screw 11, finally locking it into the upper groove of connecting block 1 9. The four fixing points operate simultaneously to achieve a sealed fixation of the ventilation pipe 7. Then, start the induced draft fan 3 inside the base 4, forming an airflow channel with the ventilation pipe 7 through the hose 6, providing a stable airflow environment for the calcination process, ensuring the discharge of exhaust gas and the replenishment of combustion air.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 curved furnace type high-efficiency heat conduction calcining furnace structure, comprising a base (4) and an outer shell (5), characterized in that: The outer shell (5) is fixedly connected to the upper side of the base (4). The left side of the outer shell (5) is rotatably connected to the front door (13). The left side of the front door (13) is rotatably connected to the motor (1). The drive end of the motor (1) is fixedly connected to the support (2). The front door (13) is equipped with a rotating component. The upper side of the front door (13) is fixedly connected to the feeding port (8). The upper side of the feeding port (8) is fixedly connected to the ventilation pipe (7). The upper side of the ventilation pipe (7) is designed with a fixing component. The upper side of the ventilation pipe (7) is fixedly connected to the hose (6). The other end of the hose (6) is fixedly connected to the blower (3). The lower side of the blower (3) is fixedly connected to the upper side inside the base (4). The rear side of the outer shell (5) is rotatably connected to the rear door (19).

2. The curved furnace type high-efficiency heat conduction calcining furnace structure according to claim 1, characterized in that: The fixing component includes a connecting block 1 (9) fixedly connected to the lower side of the ventilation pipe (7), a connecting block 2 (12) fixedly connected to the upper side of the feeding port (8), a screw (11) rotatably connected inside the connecting block 2 (12), and a knob (10) threadedly connected to the left side of the screw (11).

3. The curved furnace type high-efficiency heat conduction calcining furnace structure according to claim 1, characterized in that: The rotating assembly includes a large gear (15) fixedly connected to the rotating end of the motor (1), a rotating shaft (18) fixedly connected inside the large gear (15), a small gear (14) meshing with the upper side of the rotating shaft (18), a gear ring (16) meshing with the outer wall of the small gear (14), a reactor (17) fixedly connected to the right side of the gear ring (16), and the outer wall of the reactor (17) rotatably connected to the inner wall of the outer shell (5).

4. The curved furnace type high-efficiency heat conduction calcining furnace structure according to claim 2, characterized in that: The first connecting block (9) has a hole inside, and the second connecting block (12) has a groove in the middle.

5. The curved furnace type high-efficiency heat conduction calcining furnace structure according to claim 3, characterized in that: The inner wall of the pinion (14) is rotatably connected to the inside of the front door (13), and the gear ring (16) is rotatably connected to the inside of the front door (13).

6. The curved furnace type high-efficiency heat conduction calcining furnace structure according to claim 3, characterized in that: The outer arm of the rotating shaft (18) is fixedly connected to a connecting column (22), and the other end of the connecting column (22) is fixedly connected to an auxiliary block (20).

7. The curved furnace type high-efficiency heat conduction calcining furnace structure according to claim 3, characterized in that: The inner wall of the reactor (17) is fixedly connected to a fixed shaft, and the other end of the fixed shaft is fixedly connected to a fixed ring (21). The inner wall of the fixed ring (21) is rotatably connected to the outer wall of the rotating shaft (18).

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