High-temperature rotary furnace
By using a sealed fit between dynamic and static components and a multi-channel cooling medium pipeline design, the problems of cooling medium delivery interruption and sealing failure in high-temperature rotary kilns under combined operations are solved, achieving efficient cooling and stable transmission of power signals, and improving the operational stability and lifespan of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-03-31
AI Technical Summary
The existing high-temperature rotary kiln cooling system cannot effectively cool the furnace body under the combined action of continuous rotation around the center line and multi-angle tilting, resulting in interruption of cooling medium delivery and failure of sealing, which affects the continuous operation and life of the equipment.
The design employs a sealing fit between dynamic and static components to form a relatively rotatable sealing structure. Combined with multiple cooling medium pipelines and conductive slip rings, it achieves directional circulation transmission of cooling medium and stable transmission of electrical signals. The medium within the cooling assembly forms a solid isolation layer to protect the inner wall of the furnace body. In conjunction with the support and drive components, it ensures the stable rotation and tilting of the furnace body.
It achieves directional circulation of cooling medium, avoiding the problems of entanglement and seal failure in traditional flexible pipes, ensuring long-term reliable operation of the furnace, improving the service life of the equipment and the stability of process parameters, and meeting the requirements of temperature uniformity and power transmission stability in high-temperature processes.
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Figure CN121761618A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of high-temperature industrial furnace cooling technology, and more specifically, to a high-temperature rotary furnace. Background Technology
[0002] High-temperature rotary kilns (such as TBRC furnaces) are core equipment in metallurgy, new material preparation, and other fields. Their furnace bodies are subjected to high or even ultra-high temperature conditions (e.g., exceeding 1000°C) for extended periods. An efficient cooling system is crucial for ensuring the equipment's service life and maintaining stable process parameters. However, existing high-temperature rotary kiln cooling structures have significant technical deficiencies in adapting to furnace operating conditions and fulfilling functional requirements. Furnace operation requires simultaneous "continuous rotation around the centerline" and "multi-angle tilting," a dynamic requirement that existing cooling pipe designs cannot meet. On one hand, the connection between fixed and rotating pipes is prone to entanglement due to relative motion, directly blocking the delivery of cooling media and causing cooling interruptions. On the other hand, the dynamic sealing structure of the pipes (such as traditional packing seals) is prone to sealing failure under these combined conditions, frequently resulting in cooling water leakage. This not only wastes the medium but may also lead to corrosion or short-circuit risks in surrounding components, severely impacting continuous system operation. Summary of the Invention
[0003] (a) Technical problems to be solved The technical problem to be solved by this invention is that existing high-temperature rotary kilns are difficult to achieve efficient cooling of the furnace body.
[0004] (II) Technical Solution To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention provides a high-temperature rotary furnace, comprising a furnace body, a support assembly, a drive assembly, a dynamic component, a static component, and a cooling medium pipeline; the furnace body has a cooling assembly on its inner or outer circumference, the cooling assembly having an inlet end and an outlet end; the furnace body is rotatably connected to the support assembly, the support assembly supporting the furnace body; the drive assembly is connected to the furnace body, the drive assembly driving the furnace body to rotate continuously around its central axis; the dynamic component is fixedly connected to the furnace body and rotates with it, the dynamic component having a blind hole; the static component is fixedly disposed relative to the furnace body, the static component being disposed within the blind hole and dividing the blind hole into at least two independent fluid chambers, respectively serving as an inlet chamber and an outlet chamber for the cooling medium, the dynamic component and the static component forming a rotatable sealed fit; the cooling medium pipeline includes at least one input pipe and at least one output pipe, the input pipe and the output pipe being connected to the static component, the outlet chamber connecting the input pipe to the inlet end, and the inlet chamber connecting the output pipe to the outlet end. The above technical solution achieves directional circulation and transmission of the cooling medium through the sealed cooperation of dynamic and static components, completely avoiding the problems of entanglement and twisting of traditional flexible pipes. The medium within the cooling assembly can form a solid isolation layer, protecting the inner wall of the furnace from direct erosion by high-temperature materials.
[0005] Preferably, the furnace also includes multiple cooling branch pipes. There are multiple cooling components, which are stacked along the length of the furnace body. The multiple cooling branch pipes are connected to the inlet and outlet ends of the multiple cooling components, and correspondingly connected to the inlet and outlet chambers to form multiple cooling circulation channels. These multiple cooling circulation channels allow for independent temperature control of different areas of the furnace body. By implementing zoned cooling, the temperature difference between different areas of the furnace body is controlled within a precise range, meeting the stringent requirements for temperature uniformity in high-temperature processes.
[0006] Preferably, the system also includes valve assemblies, temperature sensors, and a control module. Multiple cooling branch pipes are each equipped with the valve assemblies to regulate the flow rate of the cooling medium within the pipes. The temperature sensors are located in the furnace area corresponding to each cooling assembly. Both the valve assemblies and the temperature sensors are electrically connected to the control module. By adjusting the cooling intensity in real time through the temperature sensors and valve assemblies, localized overheating or overcooling is avoided, and fully automated operation is achieved without manual intervention.
[0007] Preferably, the system further includes a conductive slip ring, the moving ring of which is connected to the dynamic component, and the fixed ring of which is connected to the static component. The wires on the moving ring are connected to electrical components on the furnace body, and the wires on the fixed ring are connected to external electrical equipment. The conductive slip ring ensures uninterrupted power and signal transmission during furnace rotation, preventing equipment downtime due to circuit entanglement, and is particularly suitable for long-term continuous operation scenarios.
[0008] Preferably, the device further includes a cooling water jacket fitted around the conductive slip ring, and has a coolant inlet and a coolant outlet. The coolant inlet is connected to the outlet chamber via a pipe, and the coolant outlet is connected to the inlet chamber via a pipe. The cooling water jacket actively dissipates heat from the conductive slip ring, significantly extending the service life of the electrical components and reducing the failure rate caused by overheating.
[0009] Preferably, the drive assembly includes a drive motor, a drive gear, and a gear ring. The output end of the drive motor is connected to the drive gear, and the gear ring is fixedly connected to the furnace body. The drive gear meshes with the gear ring. The gear drive structure has high transmission efficiency, and the meshing accuracy between the gear ring and the drive gear ensures the smooth rotation of the furnace body, making it suitable for high-load conditions.
[0010] Preferably, the support assembly includes a bracket, a slewing bearing base, a rolling ring, and a fixing ring. The slewing bearing base is fixedly connected to the bracket, the fixing ring is fixedly connected to the slewing bearing base, the fixing ring is rotatably connected to the gear ring, the inner side of the rolling ring is connected to the furnace body, and the outer side of the rolling ring is rotatably connected to the roller on the bracket.
[0011] Preferably, the slewing bearing base is located at the bottom of the furnace body, the fixing ring is the inner ring, and the toothed ring is the outer ring; or the slewing bearing base is located at the bottom of the furnace body, the fixing ring is the outer ring, and the toothed ring is the inner ring; or the slewing bearing base is located at the waist of the furnace body, the fixing ring is the outer ring, and the toothed ring is the inner ring; or the slewing bearing base is located at the waist of the furnace body, the fixing ring is the inner ring, and the toothed ring is the outer ring.
[0012] Preferably, when the slewing bearing base is located at the bottom of the furnace body, the high-temperature rotary kiln further includes a furnace tail short connector, one end of which is fixedly connected to the furnace body, and the other end of which is fixedly connected to the gear ring. The furnace tail short connector has through holes for passing through cooling pipes and wires.
[0013] Preferably, the end of the dynamic component facing away from the static component is fixedly connected to the furnace tail short circuit via a flange, and the end of the static component facing away from the dynamic component is fixedly connected to the fixing ring via a flange.
[0014] Preferably, the furnace tail connector, the gear ring, the fixed ring, the slewing bearing base, the dynamic component, the static component, and the furnace body are all coaxially arranged. The furnace tail connector, the gear ring, the fixed ring, and the slewing bearing base are all provided with a central hole, and the dynamic component and the static component pass through the central hole. This coaxial design ensures that the centers of gravity of each component are aligned, reducing wear and vibration under dynamic operating conditions, improving the stability of equipment operation, making it suitable for high-speed rotation applications, and providing high integration and reducing equipment size.
[0015] (III) Beneficial Effects The above-described technical solution of the present invention has at least the following advantages: 1. In this invention, the drive component drives the furnace body to rotate, and the support component supports the furnace body to ensure stable operation during rotation and tilting. Through the coaxial nesting of dynamic and static components, and the partitioned design of multiple chambers, the cooling medium is transported through cooling medium pipes, achieving directional circulation and transmission of the cooling medium. This completely solves the problems of easy tangling, twisting, and aging of traditional flexible pipes, ensuring the long-term reliable operation of the cooling system. During furnace operation, the cooling medium within the cooling component cools the furnace body, causing the high-temperature material near the inner wall of the furnace to cool and form a solid isolation layer. This isolation layer separates the remaining high-temperature material inside the furnace from the inner wall, preventing direct erosion of the furnace's inner wall surface and extending the furnace's service life. In the chemical and metallurgical fields, high-temperature rotary furnaces are expensive; this technical solution can extend the furnace's service life, thereby saving maintenance costs.
[0016] 2. In this invention, the furnace body is divided into multiple regions from top to bottom, and each region is equipped with a corresponding cooling component. Each cooling component has a corresponding inlet end and outlet end. Each inlet end is connected to the outlet chamber through a corresponding water inlet branch pipe, and each outlet end is connected to the inlet chamber through a corresponding water return branch pipe. The invention components, temperature / pressure sensors, and other detection instruments are installed on the pipelines to transmit monitoring signals to the control module, which makes real-time adjustments according to preset values, so that the temperature difference between different regions of the furnace body is controllable and meets the process requirements for temperature accuracy. At the same time, the key parameters such as the flow rate and temperature of the cooling medium in the cooling branch pipes can be monitored and dynamically adjusted in real time. The cooling intensity can be adjusted according to the thermal changes of the furnace body, so that the temperature difference between different regions of the furnace body is small.
[0017] 3. In this invention, a conductive slip ring is designed to solve the problem of circuit entanglement under rotation conditions. A cooling water jacket is provided outside the conductive slip ring, and a cooling medium is introduced into the cooling water jacket. The cooling medium is circulated to cool the conductive slip ring in real time, effectively controlling the slip ring temperature and avoiding problems such as increased contact resistance and reduced transmission reliability caused by heat generation. This improves the stability and reliability of power transmission and ensures stable power / signal transmission during rotation.
[0018] 4. In this invention, the support component and the drive component work together to enable the furnace body to stably achieve the combined action of "continuous rotation around the center line + tilting", which expands the process applicability of the furnace body; the components are reliably connected by flanges and other means, and the overall structure has better load transmission and deformation control under dynamic working conditions, which improves the equipment life and operational stability. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of the high-temperature rotary furnace provided in an embodiment of the present invention.
[0021] Figure 2 This is a partial exploded view of the high-temperature rotary kiln provided in an embodiment of the present invention.
[0022] Figure 3 This is a schematic diagram of the assembly structure of dynamic and static components provided in an embodiment of the present invention.
[0023] Figure 4 This is a structural schematic diagram of a static component provided in an embodiment of the present invention.
[0024] Figure 5 This is a schematic diagram of the structure of the dynamic component provided in an embodiment of the present invention.
[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the furnace tail short circuit provided in an embodiment of the present invention.
[0026] Figure 7 This is a schematic diagram of the connection structure between the drive motor and the gear ring provided in an embodiment of the present invention.
[0027] The labels for the attached figures are as follows: 1. Furnace body; 2. Support assembly; 3. Drive assembly; 4. Dynamic components; 5. Static components; 6. Cooling medium pipeline; 7. Conductive slip ring; 8. Cooling water jacket; 9. Furnace tail short circuit; 11. Cooling assembly; 12. First zone; 13. Second zone; 14. Third zone; 15. Fourth zone; 16. Fifth zone; 17. ; 21. Slewing bearing base; 22. Rolling ring; 23. Fixing ring; 31. Drive motor; 32. Drive gear; 33. Gear ring; 41. Blind hole; 42. Rotating sleeve; 43. Connecting flange; 51. First separator; 52. Second separator; 53. First mechanical seal; 54. Second mechanical seal; 55, support rod; 61, input pipe; 62, output pipe; 63, first connector; 64, second connector; 71, moving ring; 72, fixed ring; 81, coolant inlet; 82, coolant outlet; 111, inlet end; 112, outlet end; 411, inlet chamber; 412, outlet chamber; 421, cylinder; 422, blind flange; 511, first baffle; 512, limiting straight pipe; 521, second baffle; 522, fixed sleeve; 611, water inlet branch pipe; 612, water inlet; 621, return water branch pipe; 622, water outlet; 711, rotating guide wire; 721, fixed guide wire. Detailed Implementation
[0028] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0029] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.
[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this invention will be described in more detail below with reference to specific embodiments: like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment of the invention provides a high-temperature rotary kiln, including a furnace body 1, a support assembly 2, a drive assembly 3, a dynamic component 4, a static component 5, and a cooling medium pipeline 6; a cooling assembly 11 is provided on the inner or outer circumferential side of the furnace wall of the furnace body 1, the cooling assembly 11 having an inlet end 111 and an outlet end 112; the furnace body 1 is rotatably connected to the support assembly 2, the support assembly 2 being used to support the furnace body 1; the drive assembly 3 is connected to the furnace body 1, the drive assembly 3 being used to drive the furnace body 1 to rotate continuously around the central axis of the furnace body 1; the dynamic component 4 is fixedly connected to the furnace body 1 and rotates with it, the dynamic component 4 having a blind hole 41; the static component 5 is relatively... A static component 5 is fixedly installed in the furnace body 1 and is located within a blind hole 41, dividing the blind hole 41 into at least two independent fluid chambers, which serve as the inlet chamber 411 and outlet chamber 412 for the cooling medium (including but not limited to water and oil). The dynamic component 4 and the static component 5 form a rotatable sealed fit. The cooling medium pipeline 6 includes at least one inlet pipe 61 and at least one outlet pipe 62, which are connected to the static component 5. The outlet chamber 412 connects the inlet pipe 61 to the inlet end 111, and the inlet chamber 411 connects the outlet pipe 62 to the outlet end 112. Specifically, the cooling assembly 11 includes, but is not limited to, cooling channels, combined water-cooled copper plates, vertical water-cooled components, horizontal water-cooled components, and embedded water-cooled components.
[0032] In one embodiment, it also includes multiple cooling branch pipes (including return water branch pipe 621 and inlet water branch pipe 611), and multiple cooling components 11 are stacked along the length of the furnace body 1. The multiple cooling branch pipes are connected to the inlet and outlet ends of the multiple cooling components 11, and are correspondingly connected to the inlet chamber 411 and the outlet chamber 412 to form multiple cooling circulation channels. Specifically, as Figure 1As shown, the furnace body is divided into five zones from top to bottom: a first zone 12, a second zone 13, a third zone 14, a fourth zone 15, and a fifth zone 16. Each zone is equipped with a corresponding cooling component 11. Each cooling component 11 has a corresponding inlet end 111 and an outlet end 112. Each inlet end 111 is connected to the outlet chamber 412 via a corresponding water inlet branch pipe 611, and each outlet end 112 is connected to the inlet chamber 411 via a corresponding water return branch pipe 621. Specifically, multiple cooling branch pipes can be connected one-to-one with multiple cooling components 11, or several cooling components 11 can be connected in series and then connected to multiple cooling branch pipes.
[0033] In one embodiment, the system also includes a valve assembly (not shown), a temperature / pressure sensor (not shown), and a control module (not shown). Multiple cooling branch pipes are each equipped with a valve assembly to regulate the flow rate of the cooling medium in the pipes. The temperature sensor is located in the furnace area corresponding to the cooling assembly. Both the valve assembly and the temperature sensor are electrically connected to the control module.
[0034] In one embodiment, a conductive slip ring 7 is also included. The moving ring 71 of the conductive slip ring 7 is connected to the dynamic component 4, and the fixed ring 72 of the conductive slip ring 7 is connected to the static component 5. The wires (rotating wires 711) on the moving ring 71 are connected to electrical components on the furnace body 1, and the wires (fixed wires 721) on the fixed ring 72 are connected to external electrical equipment.
[0035] In one embodiment, a cooling water jacket 8 is also included, which is fitted outside the conductive slip ring 7 and has a coolant inlet 81 and a coolant outlet 82. The coolant inlet 81 is connected to the outlet chamber 412 through a pipe, and the coolant outlet 82 is connected to the inlet chamber 411 through a pipe.
[0036] like Figure 1 and Figure 7As shown, in one embodiment, the drive assembly 3 includes a drive motor 31, a drive gear 32, and a gear ring 33. The output end of the drive motor 31 is connected to the drive gear 32, and the gear ring 33 is fixedly connected to the furnace body 1. The drive gear 32 meshes with the gear ring 33. The support assembly 2 includes a bracket (not shown), a slewing bearing base 21, a rolling ring 22, and a fixing ring 23. The slewing bearing base 21 is located at the bottom of the furnace body 1. The fixing ring 23 is the inner ring, and the gear ring 33 is the outer ring (i.e., the fixing ring is located on the side closer to the furnace body, and the gear ring is located on the side farther from the furnace body, one inner and one outer). The outer ring drives the furnace body to rotate, while the inner ring has sufficient space to place the dynamic component 4, the static component 5, and the cooling medium pipe 6. The slewing bearing base 21 is fixedly connected to the bracket, and the fixing ring 23 is fixedly connected to the slewing bearing base 21. The fixing ring 23 is rotatably connected to the gear ring 32. The inner side of the rolling ring 22 is connected to the furnace body 1, and the outer side of the rolling ring 22 is rotatably connected to the roller on the bracket. The fixed ring 23 and gear ring 32 ensure the accuracy and load-bearing capacity of the furnace body rotation, and also enable the tilting function of the furnace body 1. The slewing bearing base 21 serves as the basic load-bearing component, bearing the longitudinal load of the furnace body and various components, providing a stable support foundation for the system. The rolling ring 22 assists in the rotation of the furnace body 1, providing lateral support and limiting the furnace body 1 at different tilt angles, reducing rotational friction loss, and improving operational stability. The high-temperature rotary furnace also includes a furnace tail short connector 9, one end of which is fixedly connected to the furnace body 1, specifically through the furnace bottom flange 17 and bolted to the furnace tail short connector 9. The other end of the furnace tail short connector 9 is fixedly connected to the gear ring 32, and the furnace tail short connector 9 has through holes for cooling pipes and wires to pass through. Figure 2 and Figure 6 As shown, the tail section short connector 9 is also provided with a weight reduction hole 91 and a wire hole 92. The weight reduction hole 91 is used to reduce the weight of the tail section short connector 9 and can also be used to pass through the cooling medium pipe 6. The wire hole 92 is used to pass through the wire (rotating wire 711). The end of the dynamic component 4 facing away from the static component 5 is fixedly connected to the tail section short connector 9 through a flange, and the end of the static component 5 facing away from the dynamic component 4 is fixedly connected to the fixing ring 23 through a flange. The tail section short connector 9, the gear ring 32, the fixing ring 23, the slewing bearing base 21, the dynamic component 4, the static component 5, and the furnace body 1 are all coaxially arranged. The tail section short connector 9, the gear ring 32, the fixing ring 23, and the slewing bearing base 21 are all provided with a central hole, and the dynamic component 4 and the static component 5 pass through the central hole.
[0037] In one embodiment, the slewing bearing base is located at the furnace waist of the furnace body (the area between the furnace bottom and the furnace opening can be defined as the furnace waist), with the fixing ring being the outer ring and the toothed ring being the inner ring (that is, the toothed ring is located on the side closer to the furnace body, and the fixing ring is located on the side farther from the furnace body, one inside and one outside). Compared with the method of setting the drive at the furnace bottom, this driving method requires that the diameter of the slewing bearing base can match the diameter of the furnace waist, that is, it needs to be large enough. In this method, the drive assembly drives the furnace body to rotate through the inner ring.
[0038] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the dynamic component 4 includes a rotating sleeve 42, which is fixedly connected to the furnace tail short connector 9, and has a blind hole 41; the static component 5 includes a first separator 51 and a second separator 52, the first separator 51 being disposed within the blind hole 41 and dynamically sealed to the rotating sleeve 42, the rotating sleeve 42 and the first separator 51 forming an oral cavity 412; the second separator 52 being disposed within the blind hole 41 and dynamically sealed to the rotating sleeve 42, the second separator 52 and the rotating sleeve 42... The first partition 51 surrounds and forms the inlet chamber 411; the cooling medium pipe 6 also includes at least one first connector 63 and at least one second connector 64, the outlet pipe 62 is connected to the outlet chamber 412 for connecting to the cooling medium source; the inlet pipe 61 is connected to the inlet chamber 411 for connecting to the cooling medium source; the first connector 63 is connected to the inlet chamber 411 and is used to connect to the return water branch pipe 621; the second connector 64 is connected to the outlet chamber 412 and is used to connect to the inlet water branch pipe 611.
[0039] In one embodiment, a first mechanical seal 53 and a second mechanical seal 54 are also included. The first mechanical seal 53 is disposed between the rotating sleeve 42 and the first separator 51, and the second mechanical seal 54 is disposed between the rotating sleeve 42 and the second separator 52. Specifically, this solution has the following advantages: the mechanical seals are made of SiC-SiC wear-resistant material, reducing wear by 50% at a rotation speed of 25 r / min. The seals can withstand a temperature range of -20℃ to 200℃, making them suitable for alternating high and low temperature operating conditions.
[0040] In one embodiment, the first separator 51 includes a first baffle 511 and a limiting straight tube 512. The limiting straight tube 512 is fixedly connected to the first baffle 511. The diameter of the first baffle 511 matches the inner diameter of the rotating sleeve 42. A first mechanical seal 53 is disposed between the limiting straight tube 512 and the rotating sleeve 42. Specifically, this solution has the following beneficial effects: the limiting straight tube ensures the alignment accuracy (parallelism ≤ 0.1 mm) between the static and dynamic components, reducing vibration and noise.
[0041] In one embodiment, the second partition 52 includes a second baffle 521 and a fixed sleeve 522. The fixed sleeve 522 is fixedly connected to the second baffle 521, and the diameter of the second baffle 521 matches the inner diameter of the rotating sleeve 42. A second mechanical seal 54 is disposed between the fixed sleeve 522 and the rotating sleeve 42. Specifically, this solution has the following advantages: the fixed sleeve 522 supports the second baffle 521, the chamber partition pressure withstand capacity reaches 1.6 MPa, and the deformation resistance is enhanced. The fixed sleeve serves as a heat conduction path, assisting in heat dissipation and reducing the risk of local overheating.
[0042] In one embodiment, a connecting flange 43 is further included, one end of which is fixedly connected to the rotating sleeve 42, and the other end of which is fixedly connected to the moving ring 71 of the conductive slip ring 7. Specifically, this solution has the following advantages: the flange bolt connection provides mechanical strength; and the quick-release flange design shortens the slip ring replacement time.
[0043] In one embodiment, a support rod 55 is further included, one end of which is fixedly connected to the first partition 51, and the other end of which is fixedly connected to the second partition 52. Specifically, this solution has the following advantages: the support rod distributes the load, prevents the baffle from deforming, and maintains the relative position between the first partition and the second partition.
[0044] In one embodiment, the rotating sleeve 42 includes a cylindrical body 421 and a blind flange 422, with the cylindrical body 421 fixedly connected to the blind flange 422.
[0045] The specific implementation process of this embodiment is as follows: The drive motor 31 outputs power to drive the drive gear 32 to rotate. The drive gear 32 meshes with the gear ring 33 of the slewing bearing, causing the furnace tail short circuit 9 and the furnace body 1 to rotate continuously around the center line. The rolling ring 22 assists the rotation of the furnace body 1 and reduces friction. The slewing bearing base 21 bears the overall load and, in conjunction with the slewing bearing, enables the furnace body 1 to tilt. Cooling water enters the outlet chamber 412 through the inlet pipe 61, and is transported to the inlet end 111 of the furnace body cooling zone (first zone 12, second zone 13, third zone 14, fourth zone 15, and fifth zone 16) through the second connector 64 and the inlet branch pipe 611. After the cooling water exchanges heat with the furnace body, it enters the inlet chamber 411 from the outlet end 112 through the return branch pipe 621 and the first connector 63, and is finally discharged through the outlet pipe 62, completing one cooling cycle. The conductive slip ring 7 rotates with the furnace body 1 via a rotating wire 711, while the fixed wire 721 remains stationary, enabling uninterrupted power / signal transmission during rotation. Simultaneously, cooling water enters through the coolant inlet 81 and exits through the coolant outlet 82 of the cooling water jacket 8, continuously cooling the conductive slip ring and ensuring stable electrical performance at high temperatures. The furnace body 1 is connected to the furnace tail short-circuit 9 via the furnace bottom flange 17. The furnace tail short-circuit 9 is reliably connected to the gear ring 33, the fixed ring 23 to the slewing bearing base 21, and the blind flange 422 to the upper end face of the furnace tail short-circuit 9 via flanges or bolts. The fixed sleeve 522 is reliably connected to the lower flange of the fixed ring of the slewing bearing base 21 via the connecting flange 43, ensuring structural stability and functional continuity under dynamic operating conditions. In summary, this invention, through multi-system collaboration, achieves circulating water cooling, precise temperature control, and stable electrical connection for the TBRC furnace body under the combined conditions of "tilt + continuous rotation," meeting the stringent requirements of high-temperature industrial production.
[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high temperature rotary furnace, characterized by, The application relates to a rotary kiln cooling system, comprising: a kiln body, wherein the inner circumferential side or the outer circumferential side of the kiln wall of the kiln body is provided with a cooling assembly, the cooling assembly has an inlet end and an outlet end; a support assembly, wherein the kiln body is rotationally connected to the support assembly, and the support assembly is used for supporting the kiln body; a driving assembly connected to the kiln body, wherein the driving assembly is used for driving the kiln body to continuously rotate around the central axis of the kiln body; a dynamic component fixedly connected to the kiln body and rotating with the kiln body, wherein the dynamic component has a blind hole; a static component fixedly arranged relative to the kiln body, wherein the static component is arranged in the blind hole and divides the blind hole into at least two independent fluid chambers, respectively serving as an inlet chamber and an outlet chamber of a cooling medium, and the dynamic component and the static component form a relatively rotatable sealing fit; a cooling medium pipeline comprising at least one input pipeline and at least one output pipeline, wherein the input pipeline and the output pipeline are connected to the static component, the outlet chamber is communicated with the input pipeline and the inlet end, and the inlet chamber is communicated with the output pipeline and the outlet end.
2. The high-temperature rotary furnace of claim 1, wherein Further comprising a plurality of cooling branch pipelines, a plurality of cooling assemblies are arranged in a stacking mode along the length direction of the kiln body, the plurality of cooling branch pipelines are connected to the inlet ends and the outlet ends of the plurality of cooling assemblies and correspondingly connected to the inlet chambers and the outlet chambers to form a multi-path cooling circulation flow channel.
3. The high-temperature rotary furnace of claim 2, wherein Further comprising a valve assembly, a temperature sensor and a control module, the plurality of cooling branch pipelines are respectively provided with the valve assembly for regulating the flow of the cooling medium in the pipeline, the temperature sensor is arranged at the corresponding kiln body area of the cooling assembly, and the valve assembly and the temperature sensor are both electrically connected to the control module.
4. The high-temperature rotary furnace of claim 1, wherein Further comprising a conductive slip ring, wherein the movable ring of the conductive slip ring is connected to the dynamic component, the fixed ring of the conductive slip ring is connected to the static component, the wires on the movable ring are connected to the electrical elements on the kiln body, and the wires on the fixed ring are connected to external electrical equipment.
5. The high-temperature rotary furnace of claim 4, wherein Further comprising a cooling water jacket, wherein the cooling water jacket is sleeved outside the conductive slip ring and is provided with a cooling liquid inlet and a cooling liquid outlet, the cooling liquid inlet is communicated with the outlet chamber through a pipeline, and the cooling liquid outlet is communicated with the inlet chamber through a pipeline.
6. The high-temperature rotary furnace of claim 1, wherein The driving assembly comprises a driving motor, a driving gear and a gear ring, the output end of the driving motor is connected to the driving gear, the gear ring is fixedly connected to the kiln body, and the driving gear is engaged with the gear ring.
7. The high-temperature rotary furnace of claim 6, wherein The support assembly comprises a support, a rotary supporting base, a rolling ring and a fixed ring, the rotary supporting base is fixedly connected to the support, the fixed ring is fixedly connected to the rotary supporting base, the fixed ring is rotationally connected to the gear ring, the inner side of the rolling ring is connected to the kiln body, and the outer side of the rolling ring is used for being rotationally connected to the carrier roller on the support.
8. The high-temperature rotary furnace of claim 7, wherein The rotary supporting base is arranged at the kiln bottom of the kiln body, the fixed ring is an inner ring, and the gear ring is an outer ring. Or the rotary supporting base is arranged at the kiln bottom of the kiln body, the fixed ring is an outer ring, and the gear ring is an inner ring. Or the rotary supporting base is arranged at the kiln waist of the kiln body, the fixed ring is an outer ring, and the gear ring is an inner ring. Or the rotary support base is arranged at the belly of the furnace body, the fixed ring is an inner ring, and the gear ring is an outer ring.
9. The high-temperature rotary furnace of claim 8, wherein When the rotary support base is arranged at the bottom of the furnace body, the high-temperature rotary furnace further comprises a tail short circuit, one end of the tail short circuit is fixedly connected to the furnace body, the other end of the tail short circuit is fixedly connected to the gear ring, and the tail short circuit is provided with a through hole for penetrating a cooling pipeline and a wire.
10. The high-temperature rotary furnace of claim 9, wherein The end of the dynamic component, which is away from the static component, is fixedly connected to the tail short circuit through a flange, and the end of the static component, which is away from the dynamic component, is fixedly connected to the fixed ring through a flange.