A mixing device for sustainable aviation fuel

Abstract

The invention relates to the technical field of mixing, and specifically discloses a mixing device for sustainable aviation fuel, comprising an axle rotatably arranged in a container, wherein a plurality of mixing components are arranged in sequence from top to bottom in the container, wherein the mixing component comprises an inner ring, an outer ring, and a mixing piece fixedly arranged between the outer side of the inner ring and the inner side of the outer ring, wherein a material cavity for loading a catalyst is arranged in the mixing piece, two shielding plates are slidably arranged on the mixing piece, a rack matched with the shielding plates on the mixing piece is slidably arranged on the inner ring, a driving rod is coaxially slidably arranged on the axle, and a driving assembly corresponding to the mixing assembly one by one is arranged on the driving rod, when the driving rod rotates and the driving rod moves upward at equal intervals intermittently, a plurality of inner rings can rotate in sequence from bottom to top, a plurality of annular cavities can be connected with a filling ring in sequence, and then a plurality of inner rings can rotate together and the filling ring is blocked by the driving rod, and the invention is conducive to uniformly mixing waste grease and glycerin, and improving the mixing efficiency with the catalyst.

Description

Technical Field

[0001] The invention relates to the field of mixing technology, and in particular to a mixing device for sustainable aviation fuel. Background Art

[0002] Sustainable aviation fuel is an alternative fuel produced in a sustainable way using waste animal and vegetable oils, oils, used cooking oils, urban domestic waste and agricultural and forestry waste as raw materials. Compared with traditional fossil fuels, sustainable aviation fuel can reduce carbon emissions by up to 85% from the entire process of raw material collection to end-user use. In the process of fuel production, waste oils are usually reacted with glycerol, and then the product is reacted with methanol under solid base catalysis, and then the fuel is produced by vacuum distillation.

[0003] A Chinese patent with announcement number CN114471296B discloses an internal stirring device for a blending pump for preparing aviation fuel, including a stirring box, the top of which is fixedly connected to an L-shaped bracket, the top inner wall of the L-shaped bracket is fixedly connected to a driving motor, the output end of the driving motor is connected to a driving screw via a coupling, and a rotating hole is opened on the top inner wall of the stirring box.

[0004] When the above scheme mixes materials, the driving motor drives the driving screw to rotate, and the rotation of the driving screw drives the circular ring block, the U-shaped block, the rotating block and the stirring rod to rotate. The rotation of the stirring rod can stir the fuel, and the rotation of the driving screw drives the threaded block to move up and down and reciprocate. The movement of the threaded block drives the fixed ring to move, and the movement of the fixed ring drives the fixed rack to move. The fixed rack drives the rotating block and the stirring rod to rotate through the arc rack, thereby realizing the angle adjustment of the stirring rod, so that the stirring rod can expand the range of stirring the fuel to improve the mixing effect of the fuel; however, due to the different viscosities of waste grease and glycerin, it is difficult to achieve a good mixing effect by relying on the stirring rod in the above scheme when mixing the waste grease and glycerin. Summary of the invention

[0005] The present invention provides a mixing device for sustainable aviation fuel, aiming to solve the problems in the related art that it is difficult to evenly mix waste oil and glycerin and the mixing efficiency with a catalyst is low.

[0006] A mixing device for sustainable aviation fuel, comprising a shaft rotatably arranged in a container, a first tube and a second tube being provided at the top of the container, and a third tube being provided at the bottom, wherein a plurality of mixing components are sequentially arranged in the container from top to bottom, wherein the mixing components comprise an inner ring, an outer ring, and a mixing piece fixedly arranged between the outer side of the inner ring and the inner side of the outer ring, wherein the outer ring is rotatably connected to the container, wherein a material cavity for containing a catalyst is arranged in the mixing piece, two shielding plates are slidably arranged on the mixing piece, and a rack 1 cooperating with the shielding plates on the mixing piece is slidably arranged on the inner ring;

[0007] The shaft rod is coaxially slidably provided with a driving rod, and a rack can move up and down synchronously with the driving rod. The driving rod is provided with a driving assembly corresponding to the mixing assembly one by one, and the driving assembly includes an upper rod and a lower rod arranged at intervals along the axial direction of the driving rod. The upper rod and the lower rod are respectively connected to the driving rod through an elastic member and can slide radially along the driving rod. A groove matching the upper rod and the lower rod is provided on the inner side of the inner ring, and a stopper is provided in the groove. When the driving rod rotates and the upper rod or the lower rod stops against the stopper, the inner ring can rotate, and a plurality of grooves are provided in the driving rod from top to bottom. There are annular cavities corresponding to the multiple inner rings one by one, and multiple through holes connected to the annular cavities are opened on the outer circumference of the driving rod. A filling ring connected to the tube 1 is coaxially arranged on the driving rod. When the driving rod rotates and the driving rod moves upward intermittently and equidistantly, the multiple inner rings can rotate in sequence from bottom to top, the multiple annular cavities can be connected with the filling rings in sequence, and then the multiple inner rings can rotate together and the filling rings are blocked by the driving rod. When the driving rod moves to the uppermost position, the rack 1 can drive two baffles to open the material cavity, and when the driving rod moves to the lowermost position, the two baffles will close the material cavity.

[0008] The present invention enables multiple inner rings to rotate in sequence from bottom to top by intermittently and equidistantly moving the driving rod upward, thereby facilitating uniform mixing of waste grease and glycerin. When the driving rod moves to the top, the multiple inner rings can rotate together, and the material cavity containing the catalyst is opened, thereby improving the mixing effect of the material and the catalyst.

[0009] Preferably, the mixing assembly includes two mixing pieces, which are arranged at an angle, and two racks 1 are slidably provided on the inner ring, which is coaxially fixed with the outer ring, and a rotating shaft is rotatably provided on the mixing piece, and a gear 1 is provided at one end of the rotating shaft located in the mixing piece, and a rack 2 meshing with the gear 1 is provided on the baffle, and a gear 2 meshing with the rack 1 is provided at one end of the rotating shaft located in the inner ring through an elastic member 2, and a ring 1 coaxially rotatably connected with the driving rod is fixedly provided on the two racks 1.

[0010] Preferably, the two racks 2 on the two baffles on the mixing element are respectively located on the upper and lower sides of the gear 1, a limit block is slidably provided on the mixing element through the elastic member 3, a groove cooperating with the limit block is provided on the gear 1, and the limit block has an arc-shaped portion at one end facing the groove. In the process of the driving rod moving to the uppermost position, the rack 1 can drive the gear 2 to rotate, so that the elastic member 2 continuously accumulates force. When the driving rod moves to the uppermost position, the limit block can be disengaged from the groove under the action of the elastic member 2 and the arc-shaped portion so that the gear 1 can rotate one circle, and then the limit block can enter the groove again. In this process, the gear 1 can drive the two baffles to quickly move away from each other to open the material chamber.

[0011] Preferably, the mixing element has two mesh plates arranged opposite to each other, and the material cavity is located between the two mesh plates. The arrangement of the mesh plates is conducive to the mixing of the material and the catalyst, and can prevent the catalyst from spilling out of the material cavity.

[0012] Preferably, the slot is annular and coaxially arranged with the inner ring, and the upper and lower sides of one end of the upper rod facing the slot and the upper and lower sides of one end of the lower rod facing the slot respectively have inclined surfaces, and the setting of the inclined surfaces facilitates flexible cooperation between the upper rod and the lower rod and the slot.

[0013] Preferably, the driving rod is provided with filling holes from top to bottom in the same number as the mixing components, and the multiple filling holes from top to bottom are connected to the multiple annular cavities from bottom to top through the inner tube in a one-to-one correspondence.

[0014] Preferably, the filling ring is coaxially rotatably connected to the driving rod, the filling ring is fixedly connected to the container, and the inner circumference of the filling ring has an annular opening for communicating with the filling hole.

[0015] Preferably, the distances between the upper rods and the lower rods in the multiple driving assemblies decrease equidistantly from bottom to top, so that when the driving rods move upward intermittently and equidistantly, the multiple inner rings can rotate in sequence from bottom to top, and then the multiple inner rings can rotate together.

[0016] Preferably, an electric push rod for driving the driving rod to move up and down is fixedly provided on the top of the container, and the telescopic end of the electric push rod is rotatably connected to the top of the driving rod.

[0017] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: taking into account the difference in viscosity of waste grease and glycerin, the material with high viscosity is gradually added to the material with low viscosity, and then the multiple inner rings can be rotated in sequence from bottom to top through the intermittent and equidistant upward movement of the driving rod, thereby facilitating the uniform mixing of waste grease and glycerin in different layers in the container, and when mixing waste grease and glycerin in different layers, the driving rod only drives the mixing components of the corresponding layer to rotate, which is beneficial to energy saving, and when the driving rod moves to the top, the multiple inner rings start to rotate together, and the material chamber containing the catalyst is opened, thereby improving the mixing effect of the material and the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure in the container when the driving rod of the present invention is located at the bottom.

[0020] Figure 3 It is an exploded view of the electric push rod, shaft rod, filling ring and driving rod of the present invention along the vertical direction.

[0021] Figure 4 It is a schematic diagram of the coordination of the shaft rod, the filling ring, the driving rod, the upper rod, the lower rod and the rack 1 of the present invention.

[0022] Figure 5It is an exploded view of the rack 1, the inner ring and the mixing element along the vertical direction of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the inner ring of the present invention.

[0024] Figure 7 It is a schematic diagram of the cooperation between the shielding plate and the mixing element of the present invention.

[0025] Figure 8 It is a schematic diagram of the cooperation between the shield plate and the rotating shaft of the present invention.

[0026] Fig. 9 It is a cross-sectional view of the mixing element, the rotating shaft, the gear 1 and the gear 2 of the present invention.

[0027] Fig.10 It is a schematic diagram of the structure in the container when the driving rod of the present invention is located at the top.

[0028] Fig.11 It is a cross-sectional view of the driving rod of the present invention.

[0029] 1. The camshaft is provided with a plurality of connecting rods, each of which is provided with a plurality of connecting rods, and a plurality of connecting rods are provided with a plurality of connecting rods. The camshaft is provided with a plurality of connecting rods, each of which is provided with a plurality of connecting rods. The camshaft is provided with a plurality of connecting rods, each of which is provided with a plurality of connecting rods. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figure 1-Figure 10As shown, a mixing device for sustainable aviation fuel includes a shaft 11 rotatably arranged in a container 10, a motor 17 for driving the shaft 11 to rotate is installed on the top of the container 10, a driving rod 20 is coaxially slidably arranged on the shaft 11, the shaft 11 and the driving rod 20 are matched by an existing spline connection form, an electric push rod 16 for driving the driving rod 20 to move up and down is fixedly arranged on the top of the container 10, the telescopic end of the electric push rod 16 is rotatably connected to the top of the driving rod 20, the top of the container 10 is provided with a tube 12 and a tube 2 13, the bottom is provided with a tube 3, and a valve 15 is installed on the tube 3. Since the viscosity of glycerin is greater than that of waste grease, in this embodiment, the tube 12 is used to add glycerin to the container 10, and the tube 2 13 is used to add waste grease to the container 10.

[0032] The container 10 is provided with a plurality of mixing components spaced evenly from top to bottom. The mixing components include an inner ring 31, an outer ring 32, and two mixing pieces 33 fixedly arranged between the outer side of the inner ring 31 and the inner side of the outer ring 32. The outer ring 32 is rotatably connected to the container 10. The mixing pieces 33 are arranged obliquely. There is a material cavity for loading the catalyst in the mixing piece 33. The mixing piece 33 has two mesh plates 331 arranged opposite to each other. The material cavity is located between the two mesh plates 331. The mixing piece 33 is slidably provided with two shielding plates. The inner ring 31 and the outer ring 32 are coaxially arranged. The mixing element 33 is fixedly connected with the inner ring 31 and the outer ring 32 through a connecting rod 330. The connecting rod 330 extends along the radial direction of the inner ring 31. A rack 35 cooperating with the shield plate 34 on the mixing element 33 is slidably arranged on the inner ring 31 in the vertical direction. There are two racks 35 and they are respectively matched with the two mixing elements 33. A rotating shaft 36 is rotatably arranged on the mixing element 33. A gear 361 is arranged at one end of the rotating shaft 36 located in the mixing element 33. The shield plate 34 is provided on the inner ring 31. The inner ring 34 is provided with a rack 241 meshing with the gear 1 361, and one end of the rotating shaft 36 located in the inner ring 31 is rotatably mounted with a gear 2 362 meshing with the rack 1 35 through an elastic member 2 42. The elastic member 2 42 is specifically a second torsion spring, one end of the elastic member 2 42 is fixed to the rotating shaft 36, and the other end is fixed to the gear 2 362. The two racks 1 35 are fixed with a ring 1 351 coaxially connected to the driving rod 20, and the ring 1 351 can move up and down synchronously with the driving rod 20. , the two racks 2 341 on the two baffles 34 on the mixing piece 33 are respectively located on the upper and lower sides of the gear 1 361, and a limit block 37 is slidably provided on the mixing piece 33 through the elastic piece 3 43. The elastic piece 3 43 is specifically a third spring. A groove 3611 cooperating with the limit block 37 is provided on the gear 1 361, and the limit block 37 has an arc portion at one end facing the groove 3611. In the initial state, the limit block 37 is stuck in the groove 3611 and the two baffles 34 close the material chamber.

[0033] It should be noted that, taking one of the mixing elements 33 as an example, when the electric push rod 16 drives the driving rod 20 to move to the uppermost position, the rack 1 35 can drive the gear 2 362 to rotate, so that the elastic element 2 42 continuously accumulates force. When the driving rod 20 moves to the uppermost position, the limit block 37 can be disengaged from the groove 3611 under the action of the elastic element 2 42 and the arc portion, so that the gear 1 361 can rotate one circle, and then the limit block 37 can enter the groove 3611 again. In this process, the gear 1 361 can drive the two shield plates 34 to quickly move away from each other. When the electric push rod 16 drives the driving rod 20 to move to the lowest point, the rack 1 35 can drive the gear 2 362 to rotate in the opposite direction, so that the elastic member 2 42 continuously accumulates force. When the driving rod 20 moves to the lowest point, the limit block 37 can be disengaged from the groove 3611 under the action of the elastic member 2 42 and the arc-shaped portion so that the gear 1 361 can rotate in the opposite direction for one circle, and then the limit block 37 can enter the groove 3611 again. During this process, the gear 1 361 can drive the two baffles 34 to quickly approach each other to close the material chamber.

[0034] like Figure 2-Figure 11 As shown, the driving rod 20 is provided with a driving assembly corresponding to the mixing assembly one by one, and the driving assembly includes an upper rod 21 and a lower rod 22 arranged at intervals along the axial direction of the driving rod 20, the upper rod 21 and the lower rod 22 are respectively connected to the driving rod 20 by an elastic member 41 and can slide along the radial direction of the driving rod 20, the elastic member 41 is specifically a first spring, in this embodiment, the distance between the upper rod 21 and the lower rod 22 in multiple driving assemblies decreases equidistantly from bottom to top, and a groove 311 cooperating with the upper rod 21 and the lower rod 22 is opened on the inner side of the inner ring 31, the groove 311 is annular and is coaxially arranged with the inner ring 31, and the upper and lower sides of one end of the upper rod 21 facing the groove 311 and the upper and lower sides of one end of the lower rod 22 facing the groove 311 respectively have inclined surfaces 211, and a stopper 312 is fixed in the groove 311, and when the driving rod 20 rotates and the upper rod 21 or the lower rod 22 moves into the groove 311 and stops with the stopper 312, the inner ring 31 can rotate.

[0035] The driving rod 20 is provided with an annular cavity 24 corresponding to the plurality of inner rings 31 from top to bottom, and the annular cavity 24 is located below the corresponding driving assembly. The driving rod 20 is provided with a plurality of through holes 241 communicating with the annular cavity 24 on its outer periphery. A filling ring 25 communicating with the pipe 12 is coaxially provided on the driving rod 20. The filling ring 25 is coaxially connected to the driving rod 20 for rotation. The filling ring 25 is fixedly connected to the container 10. The inner peripheral side of the filling ring 25 has an annular opening for communicating with the filling hole 23. The driving rod 20 is provided with a plurality of through holes 241 communicating with the annular cavity 24 on its outer periphery from top to bottom. There are filling holes 23 with the same number as the mixing components. The multiple filling holes 23 from top to bottom are connected to the multiple annular cavities 24 from bottom to top through the inner tube 231 in a one-to-one manner. In this embodiment, the inner tube 231 is located in the driving rod 20. When the driving rod 20 rotates and the electric push rod 16 drives the driving rod 20 to move upward intermittently and equidistantly, the multiple inner rings 31 from bottom to top can rotate in sequence, the multiple annular cavities 24 can be connected with the filling ring 25 in sequence, and then the multiple inner rings 31 can rotate together and the filling ring 25 is blocked by the outer side of the driving rod 20.

[0036] Specific working principle: refer to Figure 1-Figure 11 As shown, in this embodiment, there are three mixing components, which are, from bottom to top, a lower component, a middle component and an upper component. In the initial state, the upper rod 21 corresponding to the lower component is located in the slot 311 in the lower component, the upper rod 21 corresponding to the middle component is located below the inner ring 31 in the middle component, and the upper rod 21 corresponding to the upper component is located below the inner ring 31 in the upper component. The baffle 34 is in a state of closing the material cavity, and the filling ring 25 is in a connected state with the lowest annular cavity 24 in the driving rod 20.

[0037] Then, the waste grease is added into the container 10 through the second pipe 13, and the liquid level in the container 10 reaches the middle position of the middle component. Then, the motor 17 is controlled to rotate, and then glycerin is pumped into the filling ring 25 through the first pipe 12. During this process, the liquid level in the container 10 will rise to a certain height, and the glycerin can be sprayed to the surroundings through the through hole 241 on the lowest annular cavity 24 in the driving rod 20 and dispersed in the waste grease. At this time, the motor 17 can only drive the lower component to rotate, so that the mixing element 33 in the lower component can mix and stir the materials in the area corresponding to the lower component.

[0038] Then, the electric push rod 16 is controlled to make the driving rod 20 rise to a fixed height. During this process, the three rings 351 will move upward synchronously, and the elastic members 2 42 in the three mixing components will accumulate force. The upper rod 21 corresponding to the lower component will be detached from the slot 311 in the lower component with the assistance of the inclined surface 211 and the elastic member 1 41, and the lower rod 22 corresponding to the lower component will not enter the slot 311 in the lower component. The upper rod 21 corresponding to the middle component will enter the slot 311 in the middle component with the assistance of the inclined surface 211 and the elastic member 1 41, and the lower rod 22 corresponding to the middle component will not enter the slot 311 in the middle component. In the groove 311, the upper rod 21 corresponding to the upper component has not entered the slot 311 in the upper component. At this time, the filling ring 25 is in a connected state with the middle annular cavity 24 in the driving rod 20. Then, glycerin is pumped into the filling ring 25 through the tube 12. During this process, the liquid level in the container 10 will rise to a certain height again. Glycerin can be sprayed to the surroundings through the through hole 241 on the middle annular cavity 24 in the driving rod 20 and dispersed in the waste grease. At this time, the motor 17 can only drive the middle component to rotate, so that the mixing element 33 in the middle component can mix and stir the materials in the area corresponding to the middle component.

[0039] Then, the electric push rod 16 is controlled to make the driving rod 20 rise to a fixed height again. During this process, the three rings 351 will continue to move upward synchronously, and the elastic members 2 42 in the three mixing components will continue to store force. The upper rod 21 corresponding to the lower component moves upward away from the inner ring 31 in the lower component, and the lower rod 22 corresponding to the lower component has not yet entered the slot 311 in the lower component. The upper rod 21 corresponding to the middle component is assisted by the inclined surface 211 and the elastic member 41 to break away from the slot 311 in the middle component. The lower rod 22 corresponding to the middle component has not yet entered the slot 311 in the middle component. The upper rod 21 corresponding to the upper component is assisted by the inclined surface 211 and the elastic member 41 to break away from the slot 311 in the middle component. With the assistance of one 41, the lower rod 22 corresponding to the upper component does not enter the slot 311 in the upper component. At this time, the filling ring 25 is connected with the uppermost annular cavity 24 in the driving rod 20. Then, glycerin is pumped into the filling ring 25 through the tube 12. During this process, the liquid level in the container 10 will rise to a certain height again. Glycerin can be sprayed to the surroundings through the through hole 241 on the uppermost annular cavity 24 in the driving rod 20 and dispersed in the waste grease. At this time, the motor 17 can only drive the upper component to rotate, so that the mixing element 33 in the upper component can mix and stir the materials in the area corresponding to the upper component.

[0040] Then, the electric push rod 16 is controlled to make the driving rod 20 rise to a fixed height again. During this process, the three rings 351 will continue to move upward synchronously, and the elastic members 2 42 in the three mixing components will continue to store force. At this time, the two baffles 34 on the mixing component 33 quickly move away from each other to open the material chamber, and the upper rod 21 corresponding to the lower component continues to move upward away from the inner ring 31 in the lower component, and the lower rod 22 corresponding to the lower component enters the slot 311 in the lower component with the assistance of the inclined surface 211 and the elastic member 1 41, and the upper rod 21 corresponding to the middle component moves upward away from the inner ring 31 in the middle component, and the lower rod 22 corresponding to the middle component enters the slot 311 in the middle component with the assistance of the inclined surface 211 and the elastic member 1 41, and the upper rod 21 corresponding to the upper component moves upward away from the inner ring 31 in the middle component. With the assistance of the elastic member 41, the lower rod 22 corresponding to the upper component is disengaged from the slot 311 in the upper component, and the lower rod 22 corresponding to the upper component enters the slot 311 in the upper component with the assistance of the inclined surface 211 and the elastic member 41. At this time, the inner circumference of the filling ring 25 is blocked by the outer side of the driving rod 20, and the pumping of glycerin into the filling ring 25 is stopped. Next, the motor 17 can drive the lower component, the middle component and the upper component to rotate together, so that the mixing element 33 in the lower component, the middle component and the upper component can mix and stir all the materials in the container 10, and the mixed materials can also contact and react with the catalyst at this time, thereby improving the efficiency of material mixing and avoiding the glycerin adhering to the catalyst surface when the glycerin is in direct contact with the catalyst, thereby affecting the use effect of the catalyst.

[0041] After the mixing is completed, the material is discharged through the valve 15, and the driving rod 20 is controlled to move downward to the initial position. At this time, the two shielding plates 34 on the mixing element 33 close the material cavity.

[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A mixing device for sustainable aviation fuel, comprising a shaft rotatably arranged in a container, the container having tubes 1 and 2 at the top and tube 3 at the bottom, characterized in that: The container is provided with a plurality of mixing components from top to bottom, the mixing components comprising an inner ring, an outer ring and a mixing element fixedly arranged between the outer side of the inner ring and the inner side of the outer ring, the outer ring is rotatably connected to the container, the mixing element has a material cavity for loading the catalyst, two shielding plates are slidably arranged on the mixing element, and a rack 1 which cooperates with the shielding plates on the mixing element is slidably arranged on the inner ring; The shaft rod is coaxially slidably provided with a driving rod, and a rack can move up and down synchronously with the driving rod. The driving rod is provided with a driving assembly corresponding to the mixing assembly one by one, and the driving assembly includes an upper rod and a lower rod arranged at intervals along the axial direction of the driving rod. The upper rod and the lower rod are respectively connected to the driving rod through an elastic member and can slide radially along the driving rod. A groove matching the upper rod and the lower rod is provided on the inner side of the inner ring, and a stopper is provided in the groove. When the driving rod rotates and the upper rod or the lower rod stops against the stopper, the inner ring can rotate, and a plurality of grooves are provided in the driving rod from top to bottom. An annular cavity corresponding to the multiple inner rings one by one, a plurality of through holes connected to the annular cavity are opened on the outer circumference of the driving rod, a filling ring connected to the pipe 1 is coaxially arranged on the driving rod, when the driving rod rotates and the driving rod moves upward intermittently and equidistantly, the multiple inner rings can rotate in sequence from bottom to top, the multiple annular cavities can be connected to the filling rings in sequence, then the multiple inner rings can rotate together and the filling rings are blocked by the driving rod, when the driving rod moves to the uppermost position, the rack 1 can drive the two baffles to open the material cavity, and when the driving rod moves to the lowermost position, the two baffles will close the material cavity; The driving rod is provided with filling holes from top to bottom in the same number as the mixing components, and the multiple filling holes from top to bottom are connected to the multiple annular cavities from bottom to top through the inner tube in a one-to-one correspondence; The distances between the upper rods and the lower rods in the plurality of driving assemblies decrease in sequence and at equal intervals from bottom to top.

2. A mixing device for sustainable aviation fuel according to claim 1, characterized in that: The mixing assembly includes two mixing pieces, which are arranged tilted, and two racks 1 are slidably provided on the inner ring, and the inner ring is fixedly arranged coaxially with the outer ring. A rotating shaft is rotatably provided on the mixing piece, and a gear 1 is provided at one end of the rotating shaft located in the mixing piece, and a rack 2 meshing with the gear 1 is provided on the shield plate, and a gear 2 meshing with the rack 1 is provided at one end of the rotating shaft located in the inner ring through an elastic member 2, and a ring 1 coaxially rotatably connected with the driving rod is fixedly provided on the two racks 1.

3. A mixing device for sustainable aviation fuel according to claim 2, characterized in that: The two racks 2 on the two shielding plates on the mixing element are respectively located on the upper and lower sides of the gear 1, a limit block is slidably provided on the mixing element through the elastic member 3, a groove matching with the limit block is opened on the gear 1, and the limit block has an arc portion at one end facing the groove.

4. A mixing device for sustainable aviation fuel according to claim 1, characterized in that: The mixing element is provided with two mesh plates arranged opposite to each other, and the material cavity is located between the two mesh plates.

5. A mixing device for sustainable aviation fuel according to claim 1, characterized in that: The slot is annular and coaxially arranged with the inner ring. The upper and lower sides of one end of the upper rod facing the slot and the upper and lower sides of one end of the lower rod facing the slot respectively have inclined surfaces.

6. A mixing device for sustainable aviation fuel according to claim 1, characterized in that: The filling ring is coaxially connected to the driving rod for rotation, the filling ring is fixedly connected to the container, and the inner peripheral side of the filling ring is provided with an annular opening for communicating with the filling hole.

7. A mixing device for sustainable aviation fuel according to claim 1, characterized in that: An electric push rod for driving the driving rod to move up and down is fixedly provided on the top of the container, and the telescopic end of the electric push rod is rotatably connected to the top of the driving rod.

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