Rotary push type reaction device

Abstract

The invention provides a rotary push type reaction device, and relates to the technical field of material roasting. The device comprises a heating furnace body and at least one rotary propelling unit group, the number of the rotary propelling unit group is at least one, all the rotary propelling unit groups are distributed side by side in the horizontal direction, and the rotary propelling unit group penetrates through the heating furnace body; the rotary propelling unit set comprises at least one material rotary propelling unit, all the material rotary propelling units are distributed side by side in the vertical direction, and all the material rotary propelling units are sequentially communicated to form a continuous layered reversing type propelling channel.

Description

Technical Field

[0001] This invention relates to the field of material roasting technology, and in particular to a rotary propulsion reaction device. Background Technology

[0002] In industrial production, roasting is a core process for processing materials such as minerals, solid waste, and biomass. It achieves decomposition, oxidation, reduction, and impurity removal through heating and temperature control. Currently, the industry generally uses specialized roasting equipment with differentiated structures and working principles for materials of different properties, resulting in a "one material, one furnace" application model. This model has inherent drawbacks such as poor equipment adaptability, high initial investment costs, and limited production scale expansion, severely restricting the intensive, large-scale, and flexible development of roasting processes.

[0003] Specifically, existing roasting equipment exhibits significant limitations in the following typical application scenarios:

[0004] Rotary kilns for roasting molybdenum concentrate and other sulfide minerals: While rotary kilns can achieve continuous rotational roasting, their structure is typically a single straight cylinder, limiting the precision of controlling material residence time and heat distribution. This can easily lead to localized over- or under-roasting, affecting product quality uniformity. Furthermore, rotary kilns have poor sealing, which can easily cause environmental pollution when processing volatile or harmful components. They are also bulky, energy-intensive, and their large-scale expansion is constrained by manufacturing, installation, and operating costs, making them unsuitable for large-scale industrial applications.

[0005] Light calcination of lightweight materials such as dolomite: Light calcination of materials such as dolomite often employs multi-layer furnaces and fluidized bed furnaces. While multi-layer furnaces can achieve layered heating, the material mainly relies on gravity to fall naturally within the furnace, making flowability control difficult and prone to problems such as uneven calcination and agglomeration. Although fluidized bed furnaces have higher heat transfer efficiency, they have strict requirements on material particle size and density, and gas velocity control is complex. Too low a velocity can easily lead to insufficient fluidization, while too high a velocity causes a large amount of fine particles to escape with the flue gas, reducing the raw material yield. At the same time, it is difficult to achieve a deep and thorough reaction, resulting in the phenomenon of "incomplete calcination".

[0006] Fixed-bed roasting furnaces are commonly used for solid waste treatment, particularly for the roasting removal of organic matter. While these furnaces have a simple structure, the static accumulation of material on the furnace bed results in low heat and mass transfer efficiency, hindering continuous and automated feeding and unloading. This leads to limited processing capacity, high labor intensity, and high energy consumption. Especially in production scenarios requiring continuous conveying and simultaneous roasting, the static structure of fixed-bed roasting furnaces cannot match the dynamic process requirements, severely restricting efficiency improvements and scalability expansion.

[0007] The applicant has discovered that the prior art has at least the following technical problems: 1. The equipment is highly specialized and has a narrow range of applications: Different raw materials (such as molybdenum concentrate, dolomite, and solid waste) require different furnace types (rotary kiln, multi-layer furnace, fluidized bed furnace, and fixed bed furnace), resulting in poor production line flexibility. Furthermore, the configuration of multiple sets of specialized equipment significantly increases the initial investment and site occupancy costs. 2. Poor thermal performance and unstable product quality: All types of furnaces have low thermal efficiency. Due to structural limitations, the temperature field and material distribution uniformity inside the furnace are poor, which can easily lead to problems such as over-burning, under-burning, and incomplete roasting. This results in large fluctuations in product performance and makes it difficult to guarantee the pass rate. 3. Insufficient continuous production capacity and limited efficiency: Fixed-bed roasting furnaces cannot achieve continuous feeding and discharging; multi-layer furnaces rely on gravity conveying, resulting in poor controllability of material flow; fluidized bed furnaces are prone to material escape and fluidization failure, all of which make it difficult to achieve stable and efficient continuous production, thus restricting overall processing efficiency.

[0008] 4. Significant bottlenecks in scaling up: Existing equipment can only be scaled up proportionally. After scaling up, core performance such as sealing performance, temperature field uniformity, and material conveying stability deteriorates sharply. It is impossible to increase production capacity in tandem through size scaling up, which seriously limits large-scale industrial application. Summary of the Invention

[0009] The purpose of this invention is to provide a rotary propulsion reaction device. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0010] To achieve the above objectives, the present invention provides the following technical solution: The present invention provides a rotary propulsion reaction device, comprising a heating furnace body and a rotary propulsion unit group, wherein the number of the rotary propulsion unit group is at least one group, all the rotary propulsion unit groups are arranged side by side in a horizontal direction, and the rotary propulsion unit group passes through the heating furnace body; The rotary propulsion unit group includes at least one material rotary propulsion unit. All the material rotary propulsion units are arranged in parallel along the vertical direction and are connected in sequence to form a continuous layered reversing propulsion channel.

[0011] Optionally, the material rotation propulsion unit includes a fixed furnace tube, a spiral propulsion structure, and a driver. The spiral propulsion structure is located inside the fixed furnace tube, and the driver is connected to the end of the spiral propulsion structure and can drive the spiral propulsion structure to rotate inside the fixed furnace tube. The fixed furnace tube passes through the heating furnace body, and the driver is located outside the heating furnace body.

[0012] Optionally, both ends of the fixed furnace tube have bearing seats, and the end of the spiral propulsion structure is connected to the bearing seats through bearings.

[0013] Optionally, the helical propulsion structure includes a connecting shaft and helical blades. The helical blades are fixed on the outer wall of the connecting shaft, the helical blades are located inside the fixed furnace tube, and there is a gap between the outer edge of the helical blades and the inner wall of the fixed furnace tube. The end of the connecting shaft is connected to the bearing seat through a bearing, and one end of the connecting shaft passes through one of the bearing seats and is connected to the driver.

[0014] Optionally, both ends of the fixed furnace tube are provided with sealing elements.

[0015] Optionally, the drive includes a motor and a reduction gear.

[0016] Optionally, the fixed furnace tube is provided with an air inlet pipe and an air extraction pipe, the air inlet pipe and the air extraction pipe are respectively located on both sides of the heating furnace body, the air inlet pipe can be connected to the gas filling system, and the air extraction pipe can be connected to the vacuum system. Along the direction of material movement, the extraction pipe is located in front of the inlet pipe.

[0017] Optionally, the fixed furnace tube is provided with a feed pipe and a discharge pipe, the feed pipe and the discharge pipe are respectively located on both sides of the heating furnace body, the feed pipe is arranged facing upward towards the fixed furnace tube, the discharge pipe is arranged facing downward towards the fixed furnace tube, and the discharge pipe on the fixed furnace tube is connected to the feed pipe on the adjacent fixed furnace tube; Along the direction of material movement, the discharge pipe is located in front of the feed pipe.

[0018] Optionally, the rotation directions of the helical propulsion structures on two adjacent material rotation propulsion units are opposite.

[0019] Optionally, it also includes a control system, wherein both the heating furnace body and the rotary propulsion unit group are communicatively connected to the control system.

[0020] This invention provides a rotary propulsion reactor that, through a modular rotary propulsion unit design, enables compatible processing of materials with different physicochemical properties. Multiple horizontally arranged rotary propulsion units can operate independently or collaboratively. The vertically connected, parallel rotary propulsion units form a continuous, layered, reversible propulsion channel. This channel allows for flexible adjustment of propulsion speed, residence time, layer spacing, and thermal parameters based on material characteristics (such as sulfide minerals like molybdenum concentrate, lightweight materials like dolomite, and various solid wastes), eliminating the need for dedicated furnace types for different materials. This flexible structural design significantly enhances the adaptability of the production line, enabling the processing of multiple types of materials, avoiding redundant investment in multiple sets of specialized equipment, and reducing equipment footprint. This significantly lowers initial investment costs and subsequent maintenance costs, providing an equipment foundation for the intensive development of roasting processes.

[0021] The preferred technical solution of the present invention can also produce at least the following technical effects: The material rotary propulsion unit drives the material to tumble evenly through rotation. Combined with a continuous, layered, reversible propulsion channel, this ensures the material moves orderly along a preset trajectory within the furnace, preventing material accumulation and guaranteeing that each particle fully contacts the heat source. This significantly improves the uniformity of the temperature field distribution and heat and mass transfer efficiency, effectively solving problems such as localized over- or under-burning in rotary kilns, uneven roasting in multi-layer furnaces, and incomplete roasting in fluidized bed furnaces. Furthermore, the superior sealing between the heating furnace body and the rotary propulsion unit group, compared to the poor sealing of rotary kilns, effectively reduces the leakage of volatile or harmful components, lowering the risk of environmental pollution and preventing material component loss. Simultaneously, the precisely controllable rotary propulsion speed allows for flexible adjustment of the material's residence time within the furnace. Combined with the precise temperature control of the heating furnace body, this enables accurate control of the material's reaction rate, significantly reducing product performance fluctuations and ensuring a stable increase in the finished product qualification rate.

[0022] The material rotation and propulsion unit achieves stable material propulsion through active rotation, replacing the gravity-dependent natural descent conveying and static stacking mode of fixed beds in multi-layer furnaces. This completely solves the defects of poor material flow controllability in multi-layer furnaces and the inability to continuously feed and discharge materials in fixed beds. The continuous layered reversing propulsion channel enables automated and continuous material feeding and discharge. Combined with the uniform tumbling effect brought by the rotation, it avoids the material escape or fluidization failure problems caused by improper flow rate control in fluidized bed furnaces, ensuring that the material remains in a stable reaction state throughout the propulsion process. This dynamic continuous processing mode significantly improves the equipment's processing capacity, reduces manual intervention, lowers labor intensity, and avoids the efficiency losses caused by intermittent production, achieving efficient and continuous operation of the roasting process.

[0023] In the horizontal direction, production capacity can be linearly increased by adding more rotary propulsion unit groups. In the vertical direction, the processing flow can be optimized by adding more layers of material rotary propulsion units. Each unit module is independently sealed and temperature-controlled, ensuring that the sealing performance, temperature field uniformity, and material conveying stability of the overall equipment remain unaffected after scale-up, and core performance indicators remain stable. Compared to the disadvantages of rotary kilns, such as their large size and the dramatic increase in manufacturing and installation costs after scale-up, the modular structure of this device significantly reduces the manufacturing, installation, and operating costs for large-scale expansion. The equipment scale can be flexibly adjusted according to industrial production needs, achieving simultaneous improvement in production capacity and performance. This completely breaks through the bottleneck of large-scale application of existing roasting equipment and provides core equipment support for the large-scale industrial promotion of roasting technology. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0025] Figure 1 This is a schematic diagram of the structure of a rotary propulsion reaction device provided in an embodiment of the present invention, which clearly shows the layered connection relationship of the material rotary propulsion unit in the vertical direction and the material reversal path; Figure 2 This is a side view of a rotary propulsion reaction device provided in an embodiment of the present invention, showing the overall structure of multiple sets of rotary propulsion units arranged side by side in the heating furnace body; Figure 3 This is a schematic diagram of the structure of a single material rotation propulsion unit of a rotary propulsion reaction device provided in an embodiment of the present invention.

[0026] 1. Heating furnace body in the diagram; 2. Material rotation propulsion unit; 21. Fixed furnace tube; 211. Bearing seat; 212. Air inlet pipe; 213. Air extraction pipe; 214. Feed pipe; 215. Discharge pipe; 22. Spiral propulsion structure; 221. Connecting shaft; 222. Spiral blade; 23. Driver. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," 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 invention and simplifying the description, and do not indicate or imply that the device or element referred to 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 invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] The present invention provides a rotary propulsion reaction device, including a heating furnace body 1 and a rotary propulsion unit group, wherein the number of rotary propulsion unit groups is at least one group, all rotary propulsion unit groups are arranged side by side in the horizontal direction, and the rotary propulsion unit group passes through the heating furnace body 1; The rotary propulsion unit group includes at least one material rotary propulsion unit 2. All material rotary propulsion units 2 are arranged in parallel along the vertical direction and are sequentially connected to form a continuous layered reversible propulsion channel. This invention provides a rotary propulsion reaction device that achieves compatible processing of materials with different physicochemical properties through a modular rotary propulsion unit group design. Multiple groups of rotary propulsion units arranged in parallel along the horizontal direction can operate independently or collaboratively. The continuous layered reversible propulsion channel formed by the vertically connected material rotary propulsion units 2 can flexibly adjust the propulsion speed, residence time, layer spacing, and thermal parameters according to the material characteristics (such as sulfide minerals like molybdenum concentrate, lightweight materials like dolomite, and various solid wastes), eliminating the need for dedicated furnace types for different materials. This flexible structural design significantly improves the adaptability of the production line, enabling the switching and processing of multiple types of materials, avoiding redundant investment in multiple sets of dedicated equipment, reducing equipment footprint, and significantly lowering initial investment costs and subsequent maintenance costs. This provides an equipment foundation for the intensive development of roasting processes.

[0031] As an optional implementation, the material rotation propulsion unit 2 includes a fixed furnace tube 21, a spiral propulsion structure 22, and a driver 23. The spiral propulsion structure 22 is located inside the fixed furnace tube 21. The driver 23 is connected to the end of the spiral propulsion structure 22 and can drive the spiral propulsion structure 22 to rotate inside the fixed furnace tube 21. The fixed furnace tube 21 passes through the heating furnace body 1, and the driver 23 is located outside the heating furnace body 1. The driver 23 includes a motor and a reduction mechanism, which can completely isolate the high-temperature environment inside the furnace, avoid oxidation and aging damage to the driver 23 caused by high temperature, and significantly improve the operational stability and service life of the driver 23. The forced pushing characteristic of the spiral propulsion structure 22, combined with the airtight constraint of the fixed furnace tube 21, can realize the stable and continuous conveying of materials of different physical forms (particles, powders, lumps), avoid material escape and fluidization failure caused by airflow fluctuations in the fluidized bed furnace, and the efficiency loss of intermittent feeding and discharging in the fixed bed, greatly improving the continuous production capacity and processing efficiency.

[0032] As an optional implementation, both ends of the fixed furnace tube 21 have bearing seats 211. The end of the spiral propulsion structure 22 is connected to the bearing seats 211 via bearings, providing precise support and smooth rotation for the connecting shaft 221. This effectively reduces the frictional resistance of the connecting shaft 221 during rotation, reduces component wear, and ensures the coaxiality of the spiral propulsion structure 22 and the fixed furnace tube 21. This avoids problems such as uneven material conveying and furnace tube wear caused by eccentric rotation, further improving the stability and service life of the equipment and laying the foundation for long-term continuous production. Both ends of the fixed furnace tube 21 are equipped with seals. These seals enhance the sealing performance of the fixed furnace tube 21. On the one hand, they effectively prevent the leakage of volatile and harmful components inside the furnace, reducing the risk of environmental pollution and avoiding raw material waste caused by the loss of material components, thus solving the inherent defect of poor sealing in rotary kilns. On the other hand, they maintain the stability of the reaction atmosphere inside the furnace tube, providing a sealed environment for precise temperature and gas control, ensuring the consistency and safety of the roasting reaction.

[0033] As an optional implementation, the spiral propulsion structure 22 includes a connecting shaft 221 and a spiral blade 222. The spiral blade 222 is fixed on the outer wall of the connecting shaft 221. The spiral blade 222 is located inside the fixed furnace tube 21, and there is a small gap between the outer edge of the spiral blade 222 and the inner wall of the fixed furnace tube 21. The gap size is 1-10mm, which avoids friction between the spiral blade 222 and the inner wall of the fixed furnace tube 21, extends the service life of the component, and prevents the material from accumulating and scaling in the gap, ensuring smooth material propulsion. At the same time, the gap design can adapt to the conveying requirements of materials with different particle sizes. The end of the connecting shaft 221 is connected to the bearing seat 211 through a bearing, and one end of the connecting shaft 221 passes through a bearing seat 211 and is connected to the driver 23. The pitch and angle of the spiral blades 222 can be customized according to the differences in material characteristics and the length of roasting time. Combined with the driver, the rotation speed can be precisely adjusted, flexibly controlling the material's propulsion rate and residence time within the fixed furnace tube 21. For example, for refractory solid waste, the rotation speed can be reduced to extend the reaction time; for easily overburned sulfide minerals and light materials, the rotation speed can be increased to shorten the residence time, ensuring consistent material reaction. Simultaneously, the rotation of the spiral blades 222 causes the material to tumble and propel along the inner wall of the fixed furnace tube 21, breaking down material accumulation barriers, increasing the contact area between the material and the heat source, enhancing heat and mass transfer efficiency, effectively avoiding overburning, underburning, and incomplete roasting, and improving product quality uniformity and yield. Both the fixed furnace tube 21 and the connecting shaft 221 are made of 310S stainless steel seamless tubing, while the spiral blades 222 can be made of 310S sheet metal.

[0034] As an optional implementation, the fixed furnace tube 21 is provided with an inlet pipe 212 and an exhaust pipe 213, which are located on opposite sides of the heating furnace body 1. The inlet pipe 212 can be connected to a gas filling system, and the exhaust pipe 213 can be connected to a vacuum system. Depending on the reaction requirements of different materials, inert gas can be injected into the fixed furnace tube 21 through the inlet pipe 212 via the gas filling system, so that the material is roasted in an inert gas environment. Alternatively, the fixed furnace tube 21 can be evacuated to a vacuum negative pressure state through the exhaust pipe 213 via the vacuum system, so that the material is roasted in a vacuum negative pressure state. Along the material's direction of travel, the exhaust pipe 213 is located in front of the inlet pipe 212.

[0035] As an optional implementation, a feed pipe 214 and a discharge pipe 215 are provided on the fixed furnace tube 21. The feed pipe 214 and the discharge pipe 215 are located on both sides of the heating furnace body 1, respectively. The feed pipe 214 is arranged facing upwards towards the fixed furnace tube 21, and the discharge pipe 215 is arranged facing downwards towards the fixed furnace tube 21. The discharge pipe 215 on the fixed furnace tube 21 is connected to the feed pipe 214 on the adjacent fixed furnace tube 21. Along the material's forward direction, the discharge pipe 215 is located in front of the feed pipe 214, which can realize gravity-assisted conveying and orderly reversing of materials. It is especially suitable for multi-material rotating propulsion units 2 to be vertically connected in parallel to form a continuous layered reversing propulsion channel. Material layered flow can be completed without additional conveying equipment, simplifying the equipment structure and reducing energy consumption.

[0036] As an optional implementation, the spiral propulsion structures 22 on two adjacent material rotary propulsion units 2 rotate in opposite directions, which can enhance the tumbling and mixing effect of materials in the continuous layered reversing propulsion channel, avoid the directional accumulation of materials due to unidirectional propulsion, further improve the uniformity of contact between materials and heat sources and reaction gases, and ensure the consistency of the roasting reaction throughout the entire process.

[0037] As an optional implementation, a control system is also included, with both the heating furnace body 1 and the rotary propulsion unit group communicatively connected to the control system. This enables fully automated and precise control of the entire process. It can monitor and regulate the temperature field of the heating furnace body 1 in real time, ensuring the furnace temperature remains stable within the process setting range. Simultaneously, it can control the rotation speed and direction of each spiral propulsion structure 22, precisely matching the residence time and propulsion requirements of different materials. Furthermore, it coordinates the collaborative operation of multiple material rotary propulsion units 2, achieving integrated linkage of feeding, roasting, discharging, and gas path control.

[0038] This invention provides a rotary propulsion reaction device, characterized by: an integrated structural design of "fixed furnace tube 21 + internally rotating propulsion spiral propulsion structure 22"; and the use of adjustable pitch spiral blades 222 to achieve uniform tumbling and precise propulsion of materials, significantly improving heat transfer efficiency and reaction uniformity, and overcoming problems such as local overburning and agglomeration in traditional equipment. The device supports continuous operation and modular expansion, and can flexibly connect multiple fixed furnace tubes 21 in series and adapt to inert atmosphere or negative pressure operation, achieving broad adaptability to various materials such as molybdenum concentrate, dolomite, and solid waste, breaking through the traditional limitation of "one material, one furnace". Simultaneously, its continuous system and efficient heat transfer design combine energy saving and environmental protection benefits, providing a technically reliable and economically efficient equipment solution for large-scale, intensive roasting production.

[0039] Example 1: The present invention describes the operation process of industrial molybdenum oxide and molybdenum concentrate roasting: Industrial molybdenum oxide and molybdenum concentrate are mixed evenly at a molar ratio of 7:1 and continuously fed into the material rotary propulsion unit 2 through the uppermost feed pipe 214. The feeding speed is controlled at 10 kg / min. The driver 23 drives the connecting shaft 221 to drive the built-in spiral blades 222 at a speed of 1 r / min. The impeller spacing is 100 mm. Three vertically distributed material rotary propulsion units 2 are set in the heating furnace body 1. The heating section of a single fixed furnace tube 21 is 4000 mm long. The material is roasted and reacted by rotary propulsion for 2 hours and discharged through the lowermost discharge pipe 215. During the roasting reaction, the gas generated by the reaction is sucked out by the vacuum system through the gas extraction pipe 213 for reuse, realizing a closed-loop circulation of molybdenum-based materials.

[0040] Example 2: The process of calcining dolomite in this invention is as follows: The lumpy dolomite is crushed and screened to a particle size of 5-10 mm, and continuously fed into the material rotary propulsion unit 2 through the uppermost feed pipe 214 at a controlled feeding speed of 16 kg / min. The driver 23 drives the connecting shaft 221 to rotate the built-in spiral blades 222 at a speed of 0.8 r / min, with an impeller spacing of 150 mm. Three vertically distributed material rotary propulsion units 2 are installed inside the heating furnace body 1. The heating section of each fixed furnace tube 21 is 6 m long, and the furnace temperature is controlled at 1200℃. The material is propelled and reacted in the furnace for approximately 2.5 hours, completing the decomposition of the dolomite. The carbon dioxide gas released during roasting is recovered through a vacuum system connected to the extraction pipe 213 to obtain a high-purity CO2 product, achieving carbon resource utilization and process emission reduction. The roasted magnesium oxide-calcium oxide solids are discharged through the lowermost discharge pipe 215 and can be used as building materials or metallurgical auxiliary materials.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A rotary propulsion reaction device, characterized in that, It includes a heating furnace body (1) and a rotary propulsion unit assembly, wherein, The number of the rotary propulsion unit groups is at least one group, all of which are arranged side by side in the horizontal direction and penetrate the heating furnace body (1). The rotary propulsion unit group includes at least one material rotary propulsion unit (2), all of which are arranged in parallel along the vertical direction and are connected in sequence to form a continuous layered reversing propulsion channel.

2. The rotary propulsion reaction device according to claim 1, characterized in that, The material rotation propulsion unit (2) includes a fixed furnace tube (21), a spiral propulsion structure (22) and a driver (23). The spiral propulsion structure (22) is located inside the fixed furnace tube (21). The driver (23) is connected to the end of the spiral propulsion structure (22) and the driver (23) can drive the spiral propulsion structure (22) to rotate inside the fixed furnace tube (21). The fixed furnace tube (21) passes through the heating furnace body (1) and the driver (23) is located outside the heating furnace body (1).

3. The rotary propulsion reaction device according to claim 2, characterized in that, Both ends of the fixed furnace tube (21) have bearing seats (211), and the end of the spiral propulsion structure (22) is connected to the bearing seats (211) through bearings.

4. A rotary propulsion reaction device according to claim 3, characterized in that, The spiral propulsion structure (22) includes a connecting shaft (221) and a spiral blade (222). The spiral blade (222) is fixed on the outer wall of the connecting shaft (221). The spiral blade (222) is located inside the fixed furnace tube (21) and there is a gap between the outer edge of the spiral blade (222) and the inner wall of the fixed furnace tube (21). The end of the connecting shaft (221) is connected to the bearing seat (211) through a bearing. One end of the connecting shaft (221) passes through one of the bearing seats (211) and is connected to the driver (23).

5. A rotary propulsion reaction device according to claim 3, characterized in that, Both ends of the fixed furnace tube (21) are equipped with sealing elements.

6. A rotary propulsion reaction device according to claim 2, characterized in that, The driver (23) includes a motor and a reduction gear.

7. A rotary propulsion reaction device according to claim 2, characterized in that, The fixed furnace tube (21) is provided with an air inlet pipe (212) and an air extraction pipe (213). The air inlet pipe (212) and the air extraction pipe (213) are located on both sides of the heating furnace body (1). The air inlet pipe (212) can be connected to the gas filling system, and the air extraction pipe (213) can be connected to the vacuum system. Along the direction of material movement, the extraction pipe (213) is located in front of the inlet pipe (212).

8. A rotary propulsion reaction device according to claim 2, characterized in that, The fixed furnace tube (21) is provided with a feed pipe (214) and a discharge pipe (215). The feed pipe (214) and the discharge pipe (215) are located on both sides of the heating furnace body (1). The feed pipe (214) is positioned above the fixed furnace tube (21), and the discharge pipe (215) is positioned below the fixed furnace tube (21). The discharge pipe (215) on the fixed furnace tube (21) is connected to the feed pipe (214) on the adjacent fixed furnace tube (21). Along the direction of material movement, the discharge pipe (215) is located in front of the feed pipe (214).

9. A rotary propulsion reaction device according to claim 2, characterized in that, The spiral propulsion structures (22) on two adjacent material rotation propulsion units (2) rotate in opposite directions.

10. A rotary propulsion reaction device according to claim 1, characterized in that, It also includes a control system, and the heating furnace body (1) and the rotary propulsion unit group are both communicatively connected to the control system.

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