Multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time

Abstract

The invention relates to the field of fluidization reaction, in particular to a staying-time-controllable multi-stage vibration fluidization gas-solid continuous reaction device which comprises a rack, a reaction bin and a vibration device, the reaction bin is divided into at least two bin chambers and a discharging chamber through partition plates, the adjacent bin chambers are communicated through first communication openings, and the vibration device is arranged in the rack; the discharging chamber is communicated with the adjacent bin chamber through a second communication port; each chamber is provided with an air outlet, the lower end of each chamber is provided with an air inlet, each air outlet is provided with a filtering mechanism, and the air outlet of each chamber is communicated with the air inlet of the adjacent chamber through a connecting pipe except the chamber farthest from the discharging chamber; a breathable supporting plate is arranged at the lower end of the reaction bin. According to the invention, the contact time of the gas-solid reaction materials can be effectively regulated and controlled according to the reaction process conditions, the gas-solid reaction is thorough, the powder applicability is high, and the technical problems that the existing gas-solid slow reaction system is difficult to realize continuous reaction and low in reaction efficiency are solved.

Description

Technical Field

[0001] The invention relates to the field of fluidized reaction, in particular to a multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time. Background Art

[0002] At present, with the development of various technologies and the needs of research and development and production, fluidized bed reactors are constantly updated and upgraded to adapt to the increasingly optimized chemical processes. For example, Chinese Patent Publication No.: CN118059774A discloses a high-temperature, strong-vibration fluidized bed reactor for gas-solid reaction of viscous powders, which includes a gas path module, a heating module, a vibration module and a reactor module. The heating module includes a gas preheating module and a reaction heating module. The reaction heating module heats the reactor module, and the lower end of the reactor module is connected to the vibration end of the vibration module; the air inlet end of the gas preheating module is connected to the gas path module; and the air outlet end of the gas preheating module is connected to the air inlet end of the reactor module.

[0003] In the gas-solid fluidized reaction system, enhancing powder dispersion, promoting the contact between gas and solid materials, optimizing the overall process of feeding and discharging materials, and improving reaction efficiency have always been the core goals of the design and manufacture of fluidized reaction equipment.

[0004] At present, the disclosed fluidized bed reactors cannot ensure sufficient contact time between gas and solid materials while achieving continuous material processing. This makes the contact time between reactants in this type of reactor too short, resulting in low conversion rate, or only intermittent feeding is possible, and the material processing volume is small, which cannot meet the industrial production scale-up standards. In addition, in order to achieve continuous material processing in traditional vertical or tubular fluidized bed reactors, huge amounts of gas materials are required, which will inevitably lead to a decrease in reaction efficiency, making this type of device unable to serve many slow gas-solid reaction systems. These problems mean a serious waste of raw materials, energy and equipment costs. If the object to be processed is a sticky powder with strong inter-particle forces, or other solid materials that are difficult to fluidize, it is even more challenging to achieve the goal of continuous and efficient reaction in the traditional way. Summary of the invention

[0005] Therefore, in response to the above-mentioned problems, the present invention proposes a multi-stage vibrating fluidized gas-solid continuous reaction device with controllable residence time, which effectively prolongs the contact time between gas materials and solid particulate materials, realizes the continuous reaction, and makes the gas-solid reaction thorough. The powder material has high applicability, and solves the technical problems of the existing gas-solid slow reaction system that is difficult to achieve continuous reaction and has low reaction efficiency.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time, comprising a frame, a reaction silo arranged on the frame, and a vibration device arranged on the frame for providing a vibration state of the reaction silo, wherein the reaction silo is partitioned by a partition to form at least two chambers and a discharge chamber, adjacent chambers are connected through a first communication port at the bottom, and the discharge chamber is connected to an adjacent chamber through a second communication port, and a temperature control device is arranged on each connecting pipe and / or the chamber; An air outlet is provided on the upper end of each chamber, an air inlet is provided on the lower end of each chamber, a filter mechanism for blocking particulate materials and being breathable is provided on each air outlet, a feed inlet for feeding particulate materials is provided on the chamber farthest from the discharge chamber, and a discharge outlet is provided on the lower end of the discharge chamber. Except for the chamber farthest from the discharge chamber, the air outlet of each chamber is connected to the air inlet of the adjacent chamber through a connecting pipe; A breathable support plate for blocking the particulate material and being breathable is provided on the lower end of the reaction silo. The breathable support plate is located in each first connecting port. The breathable support plate is used to block each air inlet. The airflow entering each air inlet is used to suspend the particulate material in each chamber and to realize the flow of the particulate material from the chamber farthest from the discharge chamber to the discharge chamber.

[0007] Furthermore, the height of the upper end of each first connecting port gradually decreases from the feed port side to the discharge port side, and / or a baffle is provided on each first connecting port, and the height of the baffle is adjustable to adjust the size of the first connecting port.

[0008] Furthermore, an overflow weir is formed at the second communication port to slow down the flow of particulate material from the chamber close to the discharge chamber into the discharge chamber.

[0009] Furthermore, the height of the overflow weir is adjustable, and the highest height is not higher than the height of the largest first connecting port.

[0010] Furthermore, the air permeable support plate is a powder metallurgy sintered plate, and the air permeable support plate is inclined from one end of the feed port to one end of the discharge port and from top to bottom, and the inclination angle is 0 to 10 degrees.

[0011] Furthermore, each first communication port is provided with a baffle, and the height of the baffle is adjustable to adjust the size of the first communication port.

[0012] Furthermore, the inner wall of the chamber is located between the air inlet and the breathable support plate to form an inverted conical surface, and a plurality of air guide ring bodies are arranged on the inverted conical surface of at least one chamber from bottom to top, and each air guide ring body is installed on the inverted conical surface through a support frame, and an air flow channel is formed between each air guide ring body and the inverted conical surface, each air guide ring body is in a conical ring shape, and the inner diameter of the lower end of each air guide ring body is smaller than the inner diameter of the upper end.

[0013] Furthermore, a plurality of air guide ring bodies cooperate with the inverted conical surface to divide the air permeable support plate located above the chamber into a plurality of annular wind zones.

[0014] Furthermore, there are three air guide ring bodies, which are, from bottom to top, a lower air guide ring, a middle air guide ring and an upper air guide ring. The angle between the inner side surface of the lower air guide ring and the vertical surface is a lower angle, the angle between the inner side surface of the middle air guide surface and the vertical surface is a middle angle, the angle between the inner side surface of the upper air guide ring and the vertical surface is an upper angle, and the angle between the inverted cone surface and the vertical surface is a first angle. The first angle, the lower angle, the middle angle and the upper angle decrease successively, and the maximum inner diameter of the lower air guide ring is smaller than the minimum inner diameter of the middle air guide ring, and the maximum inner diameter of the middle air guide ring is smaller than the minimum inner diameter of the upper air guide ring.

[0015] Furthermore, the upper side of the discharge chamber is inclined, so that the airflow above the chamber close to the discharge chamber is guided along the upper side of the discharge chamber, thereby forming a discharge pressure at the lower part of the discharge chamber and improving the discharge efficiency.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are: 1. This scheme realizes that each chamber forms a state similar to an independent fluidized bed through the setting of multiple chambers. Under the state of mechanical vibration, the air intake is controlled to make the granular material form a suspended state, thereby realizing fluidization and flowing from the feed port to the discharge port. The purpose of vibration is to accelerate the suspension process and flow process of the granular material. In addition, the air outlet of each chamber is connected with the air inlet of the adjacent chamber through a connecting pipe, so that the air flow can be linked, so that the pressure difference of each chamber is also different, so that the granular material will naturally flow from the feed port to the discharge port. And through the setting of multiple chambers and the introduction of multiple airflows, the material can achieve continuous reaction in a suspended state, forming a multi-stage reaction. Compared with a reaction chamber, this can achieve a better suspension state, better reaction effect, more uniform reaction, and easier control. In addition, by controlling the vibration level and airflow flow rate, the flow velocity and flow state of the granular material can be effectively controlled, so that the residence time can be controlled.

[0017] The air flow rate can be controlled by conventional components such as valves and flow meters, which can be set at each air inlet.

[0018] 2. The height of the upper end of each first connecting port gradually decreases from the feed port side to the discharge port side. Such an arrangement can better achieve the flow effect of the granular material.

[0019] 3. The setting of the overflow weir can cooperate with the control of the vibration level and the air flow rate to realize the control of the residence time of the particulate material. When the vibration level and the air flow rate decrease, the rate at which the particulate material enters the discharge chamber will decrease, and the time it stays in the chamber will increase; when the vibration level and the air flow rate increase, the rate at which the particulate material enters the discharge chamber will increase, and the time it stays in the chamber will decrease. Furthermore, the height of the overflow weir is adjustable, and the highest height is not higher than the height of the largest first connecting port. In this way, the controllable residence time is easier to operate. The height adjustment of the overflow weir can adopt a conventional lifting structure in combination with a baffle, such as a lifting cylinder in combination with a lifting baffle.

[0020] 4. The permeable support plate is a powder metallurgy sintered plate, which can block the granular material and is permeable, with good effect. The permeable support plate is inclined from one end of the feed port to the other end of the discharge port and from top to bottom, with an inclination angle of 0 to 10 degrees. This arrangement can cooperate with the vibration device to achieve faster fluidization.

[0021] 5. Temperature control devices and temperature control elements are provided on each connecting pipe and / or chamber. The heated airflow can achieve a better suspension state and a better reaction effect. The temperature control device can be a conventional heating device, such as a heating belt, a thermocouple, etc. The temperature control element can be a conventional element such as a temperature measuring thermocouple. Of course, other elements can also be provided according to actual needs to achieve corresponding functions, such as flow control function, etc.

[0022] 6. Through the setting of the air guide ring body, a better air distribution effect can be achieved, so that the incoming airflow can achieve uniform suspension of the particulate material in the corresponding chamber, making the suspension more stable, the suspension state better, and the fluidization state better. In order to achieve the better part, multiple air guide ring bodies cooperate with the inverted cone surface to divide the breathable support plate above the chamber into multiple annular wind zones. This has a better air distribution effect and avoids serious uneven air distribution. Specifically, the first angle, the lower angle, the middle angle and the upper angle decrease successively, the maximum inner diameter of the lower air guide ring is smaller than the minimum inner diameter of the middle air guide ring, and the maximum inner diameter of the middle air guide ring is smaller than the minimum inner diameter of the upper air guide ring.

[0023] 7. The upper side of the discharge chamber is inclined, which is also conducive to the airflow forming pressure on the discharge port, which is conducive to better discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the fluidized state of the granular material in the first embodiment of the present invention.

[0026] Figure 3It is a structural schematic diagram of an air guide ring body provided in Embodiment 1 of the present invention.

[0027] Figure 4 It is a schematic diagram of the cooperation between the airflow and the air guide ring body in the first embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram of the structure of the lower part of the chamber cooperating with the air guide ring body in the first embodiment of the present invention.

[0029] Figure 6 It is a structural diagram of embodiment 2 of the present invention.

[0030] Reference numerals: 1. Frame; 2. Reaction silo; 21. Partition; 22. Chamber; 23. Discharge chamber; 24. First connecting port; 25. Second connecting port; 26. Connecting pipe; 27. Overflow weir; 28. Inverted conical surface; 221. Air outlet; 222. Air inlet; 223. Filter mechanism; 224. Feed inlet; 231. Discharge port; 3. Vibration device; 4. Breathable support plate; 5. Air guide ring; 51. Support frame; 52. Lower air guide ring; 53. Middle air guide ring; 54. Upper air guide ring; 6. Air supply device; 7. Baffle. DETAILED DESCRIPTION

[0031] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0032] refer to Figure 1 to Figure 2 , this embodiment 1 provides a multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time, including a frame 1, a reaction silo 2 arranged on the frame 1, and a vibration device 3 arranged on the frame 1 for providing a vibration state of the reaction silo 2. The vibration parameters of the vibration device 3 are adjustable, such as the vibration frequency, etc. The introduction of vibration can improve the fluidization quality and ensure smooth discharge of particulate materials. The introduction of vibration can also effectively suppress the channeling, agglomeration and agglomeration problems of high-viscosity ultrafine powders during the fluidization reaction process, that is, the problem that high-viscosity ultrafine powders are difficult to fluidize, thereby improving the reaction efficiency of ultrafine powders. Thereby further expanding the scope of application of powder materials of this invention and device. The reaction silo 2 is separated by a partition 21 to form at least two chambers 22 and a discharge chamber 23. Adjacent chambers 22 are connected through a first connecting port 24 at the bottom, and the discharge chamber 23 is connected to the adjacent chamber 22 through a second connecting port 25; An air outlet 221 is provided on the upper end of each chamber 22, an air inlet 222 is provided on the lower end of each chamber 22, and a filter mechanism 223 for blocking particulate materials and being air-permeable is provided on each air outlet 221. A feed inlet 224 for feeding particulate materials is provided on the chamber 22 farthest from the discharge chamber 23, and a discharge outlet 231 is provided on the lower end of the discharge chamber 23. Except for the chamber 22 farthest from the discharge chamber 23, the air outlet 221 of each chamber 22 is connected to the air inlet 222 of the adjacent chamber 22 through a connecting pipe 26; A breathable support plate 4 for blocking the particulate material and being breathable is provided on the lower end of the reaction silo 2. The breathable support plate is located in each first connecting port 24. The breathable support plate is used to block each air inlet 222. The airflow entering each air inlet 222 is used to suspend the particulate material in each chamber 22 and to realize the flow of the particulate material from the chamber 22 farthest from the discharge chamber 23 to the discharge chamber 23.

[0033] In this solution, the number of chambers 22 is set to four, which can be increased or decreased according to actual needs. The above-mentioned vibration device 3 is a conventional vibration device 3. The above-mentioned feed port 224 and the discharge port 231 are both provided with valves and other elements, so that the control of feeding and discharging can be achieved. The above-mentioned reaction silo 2 can be set to an inclined state, or the air-permeable support plate is inclined from one end of the feed port 224 to one end of the discharge port 231 and from top to bottom, and the inclination angle is 0 to 10 degrees, so that a better discharging effect can be achieved. The above-mentioned filtering mechanism 223 is a conventional filtering structure or device that can block particulate materials and is breathable, such as a powder metallurgy sintered plate.

[0034] The air-permeable support plate 4 is a powder metallurgy sintered plate.

[0035] The height of the upper end of each first communication port 24 gradually decreases from the side of the feed port 224 to the side of the discharge port 231. An overflow weir 27 is formed at the second communication port 25 to slow down the flow of particulate material from the chamber 22 close to the discharge chamber 23 into the discharge chamber 23. The height of the overflow weir 27 is adjustable, and the highest height is not higher than the height of the largest first communication port 24.

[0036] A temperature control device and a temperature control element are provided on each connecting pipe 26 and / or the chamber 22. Of course, the temperature control device and the temperature control element can also be provided at the air inlet 222. Each connecting pipe or chamber can form a separate controllable unit, that is, the temperature of different connecting pipes or chambers can be controlled separately. The temperature control device can be a conventional heating device, such as a heating belt, a thermocouple and other conventional equipment that can increase the temperature in the chamber, and the heating temperature can be set according to actual needs, such as 50°C-1000°C. The temperature control element can be a conventional element such as a temperature measuring thermocouple. Of course, other elements can also be provided according to actual needs to achieve corresponding functions, such as flow control function.

[0037] Refer to Figure 3 , Figure 4 , Figure 5 , which is Figure 1 , Figure 2 On the basis of , an air guide ring body 5 is added, specifically: The inner wall of the chamber 22 is located between the air inlet 222 and the air permeable support plate to form an inverted conical surface 28. A plurality of air guide rings 5 ​​are arranged from bottom to top on the inverted conical surface 28 of at least one chamber 22. Each air guide ring 5 is installed on the inverted conical surface 28 through a support frame 51. An air flow channel is formed between each air guide ring 5 and the inverted conical surface 28. Each air guide ring 5 is in a conical ring shape, and the inner diameter of the lower end of each air guide ring 5 is smaller than the inner diameter of the upper end. The plurality of air guide rings cooperate with the inverted conical surface 28 to divide the air permeable support plate 4 located above the chamber 22 into a plurality of annular wind zones, such as Figure 4 As shown, they are Area A, Area B, Area C, and Area D. Although the airflow intensities in multiple annular wind zones may vary, the differences are not large, and effective balance of suspension can be achieved.

[0038] There are three air guide ring bodies, which are the lower air guide ring 52, the middle air guide ring 53 and the upper air guide ring 54 from bottom to top. The angle between the inner side of the lower air guide ring 52 and the vertical surface is the lower angle β, the angle between the inner side of the middle air guide surface and the vertical surface is the middle angle γ, and the angle between the inner side of the upper air guide ring 54 and the vertical surface is the upper angle δ. The angle between the inverted cone surface 28 and the vertical surface is the first angle α, and the first angle α, the lower angle β, the middle angle γ and the upper angle δ decrease in sequence. The maximum inner diameter of the lower air guide ring 52 is smaller than the minimum inner diameter of the middle air guide ring 53, and the maximum inner diameter of the middle air guide ring is smaller than the minimum inner diameter of the upper air guide ring 54. The upper side of the discharge chamber is inclined, so that the airflow above the chamber 22 close to the discharge chamber is guided along the upper side of the discharge chamber, thereby forming a discharge pressure at the lower part of the discharge chamber to improve the discharge efficiency.

[0039] There is a distance between the lower air guide ring 52 , the middle air guide ring 53 and the upper air guide ring 54 in the vertical direction. This distance can also control the distribution of the airflow accordingly to achieve balance.

[0040] Figure 4 As shown, the arrows indicate the direction of air flow.

[0041] Refer to Figure 6 On the basis of the first embodiment, the second embodiment is proposed based on the same inventive concept, and the difference between the second embodiment and the first embodiment is that: At least one air inlet is provided with an air supply device 6 for achieving air flow strength and flow enhancement. The gas supplied by the air supply device 6 can also be heated gas, so as to achieve temperature balance between the supplied gas and the gas in the chamber. The air supply device is an existing conventional gas storage and delivery device, which can be equipped with functions such as heating, pressure regulation, speed regulation and flow size regulation. A baffle 7 is provided on each first connecting port, and the height of the baffle 7 is adjustable, which is used to adjust the size of the first connecting port.

[0042] In this solution, except for the first air inlet, the other air inlets are all equipped with air supply devices, and the type of airflow entering them is the same as that of the first air inlet, and the flow rate and intensity of the airflow entering can be adjusted according to actual needs. For example, inert gas is introduced. This ensures that each chamber has sufficient airflow and that the granular materials in the chamber can achieve high-quality fluidization. Because of the flow of airflow and the different amounts of granular materials, there will be a certain pressure difference in different chambers, and the air supply device can effectively achieve more precise control of this pressure difference.

[0043] By adding baffles, the airflow in each chamber can be effectively controlled, and the flow state of the granular material can be controlled. The baffles allow the granular material to accumulate in a chamber to a certain extent, thereby obtaining a certain material layer thickness, thereby effectively controlling the reaction time and making the flow effect after fluidization better. The cooperation of the baffles and the air supply device can effectively achieve precise control.

[0044] Preferably, the overflow weir is not higher than the height of each baffle. The overflow weir here can also be height-adjustable by a lifting mechanism, and the corresponding baffles can also be height-adjustable by a lifting device. The lifting device can be conventional equipment such as an oil cylinder or a gas cylinder.

[0045] The height of the first communication port here can be consistent, and the height can be adjusted only by the baffle.

[0046] Specifically, taking hydrogen as a reducing agent to reduce cobalt oxide powder to continuously prepare cobalt powder as an example, the reaction bin is preheated to about 200°C, and high-purity argon is introduced as a protective gas from the air inlet to purge and remove the air inside the reaction bin for about 30 minutes, and the chamber temperature is raised to about 800°C. Then, methane and high-purity argon are mixed in a certain molar ratio, and preheated, and then introduced into the air inlet near the discharge chamber, and the vibration device is started to apply vibration. When methane is discharged from the air outlet of the chamber provided with the feed port, the dry cobalt oxide powder particles are continuously input from the feed port, and the air intake flow rate of each chamber is controlled, so as to realize the suspension of the cobalt oxide powder particles, and realize the continuous movement of the cobalt oxide powder particles from the feed port to the discharge port, and finally the reduced cobalt product is discharged from the discharge port.

[0047] The device can operate stably, cobalt oxide is effectively and continuously reduced, and the conveying of particle materials assisted by vibration and the fluidization of powder particle materials in each chamber are effectively guaranteed. The control of residence time promotes the reduction of cobalt oxide with high conversion rate.

[0048] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time, Features: The invention comprises a frame, a reaction silo arranged on the frame, and a vibration device arranged on the frame for providing a vibration state of the reaction silo, wherein the reaction silo is divided into at least two chambers and a discharge chamber by a partition, adjacent chambers are connected through a first communication port at the bottom, and the discharge chamber is connected with an adjacent chamber through a second communication port; An air outlet is provided on the upper end of each chamber, an air inlet is provided on the lower end of each chamber, a filter mechanism for blocking particulate materials and being breathable is provided on each air outlet, a feed inlet for feeding particulate materials is provided on the chamber farthest from the discharge chamber, a discharge outlet is provided on the lower end of the discharge chamber, and except for the chamber farthest from the discharge chamber, the air outlet of each chamber is connected to the air inlet of the adjacent chamber through a connecting pipe, and a temperature control device is provided on each connecting pipe and / or the chamber; A breathable support plate for blocking the particulate material and being breathable is provided on the lower end of the reaction silo. The breathable support plate is located in each first connecting port. The breathable support plate is used to block each air inlet. The airflow entering each air inlet is used to suspend the particulate material in each chamber and to realize the flow of the particulate material from the chamber farthest from the discharge chamber to the discharge chamber.

2. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 1, Features: The height of the upper end of each first connecting port gradually decreases from the feed port side to the discharge port side, and / or a baffle is provided on each first connecting port, and the height of the baffle is adjustable to adjust the size of the first connecting port.

3. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 2, Features: An overflow weir is formed at the second communication port to slow down the flow of granular materials from the chamber close to the discharge chamber into the discharge chamber.

4. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 3, Features: The height of the overflow weir is adjustable, and the highest height is not higher than the height of the largest first communication port.

5. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 1, Features: The air permeable support plate is a powder metallurgy sintered plate, and the air permeable support plate is inclined from one end of the feed port to one end of the discharge port and from top to bottom, and the inclination angle is 0 to 10 degrees.

6. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 1, Features: At least one air inlet is provided with an air supply device for achieving air flow intensity and flow enhancement.

7. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 1, Features: The inner wall of the chamber is located between the air inlet and the breathable support plate to form an inverted conical surface. A plurality of air guide ring bodies are arranged on the inverted conical surface of at least one chamber from bottom to top. Each air guide ring body is installed on the inverted conical surface through a support frame. An air flow channel is formed between each air guide ring body and the inverted conical surface. Each air guide ring body is in a conical ring shape, and the inner diameter of the lower end of each air guide ring body is smaller than the inner diameter of the upper end.

8. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 7, Features: The plurality of air guiding ring bodies cooperate with the inverted conical surface to divide the air permeable support plate located above the chamber into a plurality of annular air zones.

9. A multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 8, Features: There are three air guide ring bodies, which are a lower air guide ring, a middle air guide ring and an upper air guide ring from bottom to top. The angle between the inner side surface of the lower air guide ring and the vertical surface is a lower angle, the angle between the inner side surface of the middle air guide surface and the vertical surface is a middle angle, the angle between the inner side surface of the upper air guide ring and the vertical surface is an upper angle, and the angle between the inverted cone surface and the vertical surface is a first angle. The first angle, the lower angle, the middle angle and the upper angle decrease successively. The maximum inner diameter of the lower air guide ring is smaller than the minimum inner diameter of the middle air guide ring, and the maximum inner diameter of the middle air guide ring is smaller than the minimum inner diameter of the upper air guide ring.

10. The multi-stage vibration fluidized gas-solid continuous reaction device with controllable residence time according to claim 1, Features: The upper side of the discharge chamber is inclined, so that the airflow above the chamber close to the discharge chamber is guided along the upper side of the discharge chamber, thereby forming a discharge pressure at the lower part of the discharge chamber and improving the discharge efficiency.

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