Material heating device, fluidized bed reactor, reaction system and application thereof

Abstract

The invention discloses a material heating device, a fluidized bed reactor, a reaction system and application of the material heating device. The material heating device comprises a supporting body, the supporting body is internally provided with a containing groove of a hollow structure, the upper end of the supporting body is provided with a first through groove used for being communicated with a hopper, and the lower end of the supporting body is provided with a second through groove used for being communicated with a feeding pipe; the material carrier is located in the containing groove, and at least one material groove used for containing materials is formed in the periphery of the material carrier; the plurality of electric heating rods are arranged in the trough so as to heat materials entering the trough; the hollow shaft rod is connected to the material carrier, and the two ends of the shaft rod penetrate through the supporting body respectively; one end of the shaft rod is used for being connected with a motor installed on the supporting body so as to drive the material carrier to rotate through the motor. And the other end of the shaft rod is provided with an electric rotating joint, so that the electric heating rod is powered through the electric rotating joint, and the device can preheat quantitative materials.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical equipment, and in particular to a material heating device, a fluidized bed reactor, a reaction system and applications thereof. Background Art

[0002] Catalytic cracking is one of the important heavy oil lightening processes in oil refining technology. For example, 80% of motor gasoline comes from the products after catalytic cracking. With the increase in demand, the scale of crude oil processing and catalytic cracking processing has increased year by year.

[0003] Fluidized bed reactors are widely used in the field of catalytic cracking. Existing fluidized bed reactors include: a fluidized bed reactor unit and a gas supply unit, a particle supply unit, a particle recovery unit, and a gas collection unit connected thereto; the fluidized bed reactor unit includes at least one particle fluidization pipeline; the gas supply unit is used to supply gas to the fluidized bed reactor unit and control the speed of the gas; the particle supply unit is used to provide the fluidized bed reactor unit with fine particles required for the reaction; the particle recovery unit is used to collect fine particles after the reaction in the fluidized bed reactor unit; and the gas collection unit is used to collect gas in the fluidized bed reactor unit. Summary of the invention

[0004] In order to enrich the process routes and increase the selection space, the embodiments of the present invention provide a material heating device, a fluidized bed reactor, a reaction system and applications thereof.

[0005] In a first aspect, an embodiment of the present invention provides a material heating device, which may include:

[0006] A support body, wherein a receiving groove of a hollow structure is arranged inside the support body, and a first through groove for communicating with a hopper is arranged at the upper end of the support body, and a second through groove for communicating with a feeding pipe is arranged at the lower end of the support body;

[0007] A material carrier, the material carrier is located in the containing groove, and at least one material groove for containing the material is opened on the periphery of the material carrier;

[0008] A plurality of electric heating rods, wherein the plurality of electric heating rods are arranged in the material trough to heat the material entering the material trough; and

[0009] A hollow shaft rod is connected to the material carrier, and both ends of the shaft rod pass through the support body respectively; one end of the shaft rod is used to connect to a motor installed on the support body so as to drive the material carrier to rotate through the motor; the other end of the shaft rod is installed with an electrical rotating joint so as to supply power to the electric heating rod through the electrical rotating joint.

[0010] Optionally, the material carrier is further provided with a roller slot parallel to the axial direction of the shaft, and the roller slot corresponds to the position of the material trough;

[0011] The material heating device also includes: a roller, a connecting rod and a short shaft;

[0012] The roller is located in the roller slot and abuts against the slot wall of the accommodating slot;

[0013] The connecting rod is located in the material trough, and a plurality of the electric heating rods are installed on the connecting rod;

[0014] The material trough and the roller slot at the corresponding position are connected through a through hole, and the short shaft is located in the through hole and is connected to the roller and the connecting rod respectively;

[0015] When the material carrier is driven to rotate by the motor, the material carrier drives the roller to rotate, so that the roller drives the electric heating rod to rotate through the short shaft and the connecting rod.

[0016] Optionally, the supporting body is a rectangular fixed block; the containing groove is cylindrical, and the material carrier matches the shape of the containing groove.

[0017] Optionally, there are four material troughs, and the four material troughs are evenly distributed around the periphery of the material carrier.

[0018] Optionally, the volume of the material trough can be set, and the volume of the material trough is 1 to 5L.

[0019] Preferably, the volume of the material trough is 3L.

[0020] In a second aspect, an embodiment of the present invention provides a material heating device, which may include: a motor and the material heating device as described in the first aspect;

[0021] The motor is arranged on one side of the supporting body of the material heating device, and the output end of the motor is connected to the shaft rod of the material heating device.

[0022] In a third aspect, an embodiment of the present invention provides a fluidized bed reactor, which may include: a particle supply unit, wherein the particle supply unit includes: a hopper, a feed pipe, and a material heating device as described in the first aspect;

[0023] The supporting body of the material heating device is connected to the hopper and the feeding pipe respectively.

[0024] Optionally, the fluidized bed reactor may further include: a motor, wherein the motor is disposed on the supporting body, and an output end of the motor is connected to a shaft of the material heating device.

[0025] In a fourth aspect, an embodiment of the present invention provides a catalyst fluidized regeneration reaction system, which may include: a regenerator and at least one fluidized bed reactor as described in the third aspect;

[0026] The catalyst outlet of the fluidized bed reactor is communicated with the catalyst inlet of the regenerator.

[0027] In a fifth aspect, an embodiment of the present invention provides a catalytic cracking reaction system, which may include one or at least two fluidized bed reactors as described in the third aspect arranged in parallel.

[0028] In a sixth aspect, an embodiment of the present invention provides an application of the fluidized bed reactor as described in the third aspect in a catalyst fluidized regeneration reaction system or a catalytic cracking reaction system.

[0029] In a seventh aspect, an embodiment of the present invention provides an application method, including application of the material heating device as described in the first aspect in a fluidized bed reactor.

[0030] Optionally, the particle size of the material in the material trough is 0.1-5 mm, the rotation speed of the material carrier is 60-120 r / min, the heating temperature of the electric heating rod is 80-150° C., and the rotation rate of the electric heating rod is 200-1000 r / min.

[0031] Optionally, the heating temperature of the electric heating rod is 100° C., and the rotation speed of the electric heating rod is 300-800 r / min.

[0032] The beneficial effects of the above technical solution provided in the embodiments of the present invention include at least:

[0033] The embodiment of the present invention provides a material heating device, a fluidized bed reactor, a reaction system and its application. The material heating device can heat the material through a heating rod and can quantitatively supply the material by designing the volume of the trough. When applied to a fluidized bed reactor, the material heating device can preheat the material entering the fluidized bed reactor body through the hopper and the feed pipe, thereby reducing the time spent on heating in subsequent processes; at the same time, the material heating device can quantitatively supply the material due to the hopper volume setting, so as to reduce the use of other material quantitative equipment and further realize resource allocation.

[0034] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0035] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0037] Figure 1 This is one of the structural schematic diagrams of the particle supply unit of the fluidized bed reactor provided in an embodiment of the present invention;

[0038] Figure 2 This is a second structural schematic diagram of a particle supply unit of a fluidized bed reactor provided in an embodiment of the present invention;

[0039] Figure 3 It is a schematic diagram of the overall structure of a fluidized bed reactor provided in an embodiment of the present invention;

[0040] Among them, 1-material heating device; 2-hopper; 3-feeding pipe; 4-motor; 5-fluidized bed reactor body;

[0041] 11-support body; 12-material carrier; 13-electric heating rod; 14-shaft rod; 15-electric rotary joint; 16-roller; 17-connecting rod; 18-short shaft;

[0042] 111 - receiving groove; 112 - first through groove; 113 - second through groove;

[0043] 121- material trough; 122- roller slot. DETAILED DESCRIPTION

[0044] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "far", "near", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The inventors found in actual production that in the particle supply unit of the existing fluidized bed reactor, the material directly enters the fluidized bed reactor body from the hopper through the feed pipe. Since the material needs to be heated in the fluidized bed reactor body and is finally fluidized by the gas action of the gas supply unit, there is a lack of devices and equipment for preheating the material, resulting in the addition of a heating process in the fluidized bed reactor body, and the overall process is more time-consuming; secondly, the inventors also found that the structure of the existing hopper and feed pipe in the particle supply unit cannot achieve quantitative material delivery. In order to achieve quantitative particle supply, the amount of material supply from other equipment needs to be controlled. In order to solve the above technical problems, the inventors innovatively proposed this invention.

[0048] In an embodiment of the present invention, a material heating device is provided. Figure 1 to Figure 3 As shown, the material heating device 1 may include: a supporting body 11, a material carrier 12, a plurality of electric heating rods 13, a shaft rod 14 and an electric rotary joint 15. In order to more clearly reflect the structure, position and installation relationship of the material heating device on the fluidized bed reactor, the present embodiment does not provide a separate structural diagram of the material heating device in this embodiment, but rather uses a structural schematic diagram of the fluidized bed reactor and its particle supply unit for explanation, and those skilled in the art can obtain the material heating device from the structure diagram of the fluidized bed reactor and its particle supply unit. Figure 1 to Figure 3 The structure of the material heating device can be clearly understood from the following text description, and the embodiments of the present invention will not be described in detail here.

[0049] Among them, a hollow accommodating groove 111 is arranged inside the support body 11, and a first through groove 112 for communicating with the hopper 2 is arranged at the upper end of the support body 11, and a second through groove 113 for communicating with the feeding pipe 3 is arranged at the lower end of the support body 11; the material carrier 12 is located in the accommodating groove 111, and at least one material groove 121 for accommodating materials is opened on the periphery of the material carrier 12; a plurality of electric heating rods 13 are arranged in the material groove 121 to realize heating of the material entering the material groove 121; and a hollow shaft 14, the shaft 14 is connected to the material carrier 12, and the two ends of the shaft 14 respectively pass through the support body 11; one end of the shaft 14 is used to connect with the motor 4 installed on the support body 11, so as to drive the material carrier 12 to rotate through the motor 4; the other end of the shaft 14 is installed with an electrical rotating joint 15, so as to supply power to the electric heating rod 13 through the electrical rotating joint 15.

[0050] It should be noted that the first through slot 112 in the embodiment of the present invention connects the receiving tank 111 with the hopper 2, and the second through slot 113 connects the receiving tank 111 with the feed pipe 3. When in use, the material enters the receiving tank 111 (the material carrier 12 in the receiving tank 111) from the hopper through the first through slot 112, and then is led out from the receiving tank 111 to the feed pipe 3 through the second through slot 113. It should also be noted that the electric heating rod 13 is electrically connected to the electric rotary joint 15. When in use, the electric rotary joint 15 is connected to an external circuit to supply power to the electric heating rod 13 through the electric rotary joint 15, so that the electric heating rod 13 heats the material in the trough 121, thereby preheating the material before the material enters the fluidized bed reactor body 5. It should be further explained that the above-mentioned hollow shaft 14 can be connected to the central axis of the material carrier 12, or it can be installed in other parts. Its main purposes are two points. One is to connect to the output end of the external motor to drive the material carrier 12 to rotate; the other is to connect the electrical rotary joint 15. Since the electrical rotary joint 15 is electrically connected to the electric heating rod 13, the hollow shaft 14 provides space for its electrical connection wiring.

[0051] The detailed working process of the above-mentioned material heating device in the embodiment of the present invention when in use is as follows: after the granular raw material (material) is added to the hopper, the motor on the material heating device is started and the power supply is connected through the electrical rotating joint to power the electric heating rod; the motor drives the material carrier to rotate through the connected shaft rod, and the granular raw material falls into the material trough of the material carrier through the first through groove, and the electric heating rod heats the granular raw material in the material trough; since the speed of the motor is adjustable, the heating time of the granular raw material in the material trough is adjustable; when the motor drives the material carrier to rotate for a certain time, the material trough loaded with the granular raw material corresponds to the position of the second through groove, and the heated granular raw material falls from the material trough into the feed pipe under the action of gravity, and is then transported to the fluidized bed reactor body.

[0052] The material heating device provided in the embodiment of the present invention can heat the material through the heating rod and realize quantitative supply of the material by designing the volume of the material trough. When applied to a fluidized bed reactor, the material heating device can preheat the material entering the fluidized bed reactor body through the hopper and the feed pipe, thereby reducing the time spent on heating in the subsequent process; at the same time, the material heating device can realize quantitative supply of materials due to the hopper volume setting, so as to reduce the use of other material quantitative equipment and further realize resource allocation.

[0053] Furthermore, when the material heating device provided in the embodiment of the present invention is applied to a fluidized bed reactor, it reduces particle agglomeration, enhances mixing between fluid and particles, and improves mass transfer, heat transfer efficiency and reaction efficiency.

[0054] In an alternative embodiment, referring to Figure 1 to Figure 3 As shown, the material carrier 12 of the material heating device 1 is also provided with a roller slot 122 which is parallel to the axial direction of the shaft 14, and the roller slot 122 corresponds to the position of the material trough 121; the material heating device 1 may also include: a roller 16, a connecting rod 17 and a short shaft 18; the roller 16 is located in the roller slot 122 and abuts against the slot wall of the accommodating slot 111; the connecting rod 17 is located in the material trough 121, and a plurality of electric heating rods 13 are installed on the connecting rod 17; the material trough 121 and the roller slot 122 at the corresponding position thereof are connected through a through hole (the short shaft position in the figure), and the short shaft 18 is located in the through hole and is connected to the roller 16 and the connecting rod 17 respectively; when the material carrier 12 is driven to rotate by the motor, the material carrier 12 drives the roller 16 to rotate, so that the roller 16 drives the electric heating rod 13 to rotate through the short shaft 18 and the connecting rod 17.

[0055] In the embodiment of the present invention, the electric heating rod can rotate, and can heat and stir the material in the material trough, thereby achieving uniform heating of the material over a large range.

[0056] The above-mentioned material heating device in the embodiment of the present invention is improved on the basis of the above-mentioned embodiment, and its working process when in use is as follows: after the granular raw material (material) is added to the hopper, the motor on the material heating device is started and the power supply is connected through the electrical rotating joint to power the electric heating rod; the motor drives the material carrier to rotate through the connected shaft rod, and the granular raw material falls into the material trough of the material carrier through the first through groove, and the electric heating rod heats the granular raw material in the material trough; during the heating process, the motor drives the material carrier to rotate, and at the same time, the material carrier drives the roller to roll on the groove wall of the receiving groove, so that the roller drives the electric heating rod to rotate through the short shaft and the connecting rod, so as to stir the granular raw material in the material trough and heat it through the electric heating rod; since the speed of the motor is adjustable, the heating time of the granular raw material in the material trough is adjustable; when the motor drives the material carrier to rotate for a certain time, the material trough loaded with the granular raw material just corresponds to the position of the second through groove, and the heated granular raw material falls from the material trough into the feed pipe under the action of gravity, and then is transported to the fluidized bed reactor body. Since the above-mentioned electric heating rod in this embodiment can rotate, when the granular raw materials fall into the feed pipe under the action of gravity, the electric heating rod can stir and further peel off the granular raw materials in the material trough to accelerate the material to fall into the feed pipe.

[0057] In another alternative embodiment, referring to Figure 1 to Figure 3 As shown, the supporting body 11 is a rectangular fixed block; the receiving groove 111 is cylindrical, and the shape of the material carrier 12 matches that of the receiving groove 111 .

[0058] It should be noted that the material carrier 12 in this embodiment matches the shape of the containing groove 111, that is, the material carrier 12 can be a cylinder, so that the material carrier is easy to rotate and to open a material groove on its periphery.

[0059] During specific installation, the above-mentioned long columnar fixing block is conveniently installed between the hopper and the feed pipe. During specific implementation, the above-mentioned support body 11 in this embodiment can be configured into two parts that can be docked, so as to facilitate placing the material carrier 12 in its receiving groove 111.

[0060] In a specific embodiment, referring to Figure 2 As shown, there are four material troughs 121, which are evenly distributed around the periphery of the material carrier 12. The four material troughs in this embodiment can be adjusted with the motor rotation speed to achieve timed and quantitative material supply, and can ensure the utilization rate of the material trough under the premise of providing preheating to the greatest extent.

[0061] In another specific embodiment, the volume of the above-mentioned trough 121 can be set, and the volume of the trough is 1 to 5 L. Preferably, the volume of the trough is 3 L. In this embodiment, since the volume of the trough can be preset, the volume of the trough can also be set by adding a partition or partition in the trough to achieve quantitative delivery of the granular raw materials, and provide different quantitative granular raw materials according to the size or demand of the subsequently connected fluidized bed reactor unit.

[0062] Based on the same inventive concept, a material heating device is also provided in the embodiment of the present invention, referring to Figure 3 As shown, the material heating device may include: a motor 4 and the material heating device 1; the motor 4 is arranged on one side of the supporting body 11 of the material heating device 1, and the output end of the motor 4 is connected to the shaft 14 of the material heating device 1 (refer to Figure 2 shown).

[0063] Based on the same inventive concept, a fluidized bed reactor is also provided in the embodiment of the present invention. Figure 1 to Figure 3 As shown, the fluidized bed reactor may include: a particle supply unit, which may include: a hopper 2, a feed pipe 3 and the above-mentioned material heating device 1; the supporting body 11 of the material heating device 1 is connected to the hopper 2 and the feed pipe 3 respectively.

[0064] In another alternative embodiment, referring to Figure 3 As shown, the fluidized bed reactor may also include: a motor 4, combined with Figure 2 As shown, the motor 4 is arranged on the supporting body 11 , and the output end of the motor 4 is connected to the shaft 14 of the material heating device 1 .

[0065] Based on the same inventive concept, an embodiment of the present invention also provides a catalyst fluidized regeneration reaction system, which may include: a regenerator and at least one of the above-mentioned fluidized bed reactors; the catalyst outlet of the fluidized bed reactor is connected to the catalyst inlet of the regenerator.

[0066] Based on the same inventive concept, a catalytic cracking reaction system is also provided in an embodiment of the present invention, which may include: one or at least two of the above-mentioned fluidized bed reactors arranged in parallel. The fluidized bed reactor is provided with multiple or at least two arranged in parallel. In specific implementation, two or more fluidized bed reactors can be arranged to operate in parallel according to specific production requirements to meet production capacity.

[0067] Based on the same inventive concept, an embodiment of the present invention further provides an application of the above-mentioned fluidized bed reactor in a catalyst fluidized regeneration reaction system or a catalytic cracking reaction system.

[0068] Based on the same inventive concept, an application method is also provided in an embodiment of the present invention, including application of the above-mentioned material heating device in a fluidized bed reactor.

[0069] During application, it is necessary to adjust the parameters of the material heating device to achieve the best preheating effect. Specifically, the particle size of the material in the trough is 0.1-5 mm, the rotation speed of the material carrier is 60-120 r / min, the heating temperature of the electric heating rod is 80-150°C, preferably 100°C, and the rotation rate of the electric heating rod is 200-1000 r / min, preferably 300-800 r / min.

[0070] The preheating process of the fluidized bed granular raw material is implemented in conjunction with the fluidized bed reactor. The particle size of the fluidized bed granular raw material is 0.1mm~5mm. The fluidized bed granular raw material is added to the hopper. After starting the motor, the speed regulator (not shown in the figure) is adjusted to adjust the speed of the material carrier to 60~120r / min, so that the contact time between the first through groove and the material groove is 0.5 to 1 second to fill the material groove. The volume of the material groove is 1L~5L, preferably 3L, and the heating temperature of the electric heating rod is adjusted to 80~150℃, preferably 100℃. The rotation rate of the electric heating rod is 200~1000r / min, preferably 300~800r / min. When the material groove filled with the granular raw material contacts the second through groove, the granular raw material falls into the body of the fluidized bed reactor through the feed pipe due to gravity, thereby realizing the preheating process of the fluidized bed granular raw material. At the same time, since the volume of the material groove is fixed and adjustable, the speed of the material carrier is a fixed value, so that quantitative feeding of the fluidized bed reactor can be achieved.

[0071] In the embodiment of the present invention, the specific application method and specific examples can refer to the detailed working process of the above-mentioned material heating device when in use, and the embodiment of the present invention will not be repeated here.

[0072] The principles of the above-mentioned fluidized bed reactor, material heating equipment, catalyst fluidized regeneration reaction system, catalytic cracking reaction system, application of the fluidized bed reactor in the catalyst fluidized regeneration reaction system or the catalytic cracking reaction system, and application of the material heating device in the fluidized bed reactor in the embodiments of the present invention are similar to those of the aforementioned material heating device, so their implementation can refer to the implementation of the aforementioned method, and the repeated parts will not be repeated here.

[0073] Obviously, various changes and modifications may be made to the present invention by those skilled in the art without departing from the spirit and scope of the present invention. The present disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various changes and modifications may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims. Thus, if these changes and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and modifications.

Claims

1. A material heating device, characterized in that: include: A support body, wherein a receiving groove of a hollow structure is arranged inside the support body, and a first through groove for communicating with a hopper is arranged at the upper end of the support body, and a second through groove for communicating with a feeding pipe is arranged at the lower end of the support body; A material carrier, the material carrier is located in the containing groove, and at least one material groove for containing the material is opened on the periphery of the material carrier; A plurality of electric heating rods, wherein the plurality of electric heating rods are arranged in the material trough to heat the material entering the material trough; and A hollow shaft rod is connected to the material carrier, and both ends of the shaft rod pass through the support body respectively; one end of the shaft rod is used to connect to a motor installed on the support body so as to drive the material carrier to rotate through the motor; the other end of the shaft rod is installed with an electrical rotating joint so as to supply power to the electric heating rod through the electrical rotating joint.

2. The material heating device according to claim 1, characterized in that: The material carrier is also provided with a roller slot parallel to the axial direction of the shaft, and the roller slot corresponds to the position of the material slot; The material heating device also includes: a roller, a connecting rod and a short shaft; The roller is located in the roller slot and abuts against the slot wall of the accommodating slot; The connecting rod is located in the material trough, and a plurality of the electric heating rods are installed on the connecting rod; The material trough and the roller slot at the corresponding position are connected through a through hole, and the short shaft is located in the through hole and is connected to the roller and the connecting rod respectively; When the material carrier is driven to rotate by the motor, the material carrier drives the roller to rotate, so that the roller drives the electric heating rod to rotate through the short shaft and the connecting rod.

3. The material heating device according to claim 1 or 2, characterized in that: The supporting body is a rectangular fixed block; the containing groove is cylindrical, and the shape of the material carrier matches that of the containing groove.

4. The material heating device according to claim 1 or 2, characterized in that: There are four material troughs, and the four material troughs are evenly distributed around the periphery of the material carrier.

5. The material heating device according to claim 1 or 2, characterized in that: The volume of the trough can be set.

6. A material heating device, characterized in that: include: A motor and a material heating device as claimed in any one of claims 1 to 5; The motor is arranged on one side of the supporting body of the material heating device, and the output end of the motor is connected to the shaft rod of the material heating device.

7. A fluidized bed reactor, characterized in that: include: A particle supply unit, the particle supply unit comprising: a hopper, a feed pipe and a material heating device as claimed in any one of claims 1 to 5; The supporting body of the material heating device is connected to the hopper and the feeding pipe respectively.

8. A catalyst fluidized regeneration reaction system, characterized in that: include: a regenerator and at least one fluidized bed reactor as claimed in claim 7; The catalyst outlet of the fluidized bed reactor is communicated with the catalyst inlet of the regenerator.

9. A catalytic cracking reaction system, characterized in that: It comprises one or at least two fluidized bed reactors as claimed in claim 7 arranged in parallel.

10. An application method, characterized in that: include: Use of the material heating device according to any one of claims 1 to 5 in a fluidized bed reactor; Wherein, the particle size of the material in the material trough is 0.1-5 mm, the rotation speed of the material carrier is 60-120 r / min, the heating temperature of the electric heating rod is 80-150° C., and the rotation rate of the electric heating rod is 200-1000 r / min.

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