Furfural hydrogenation catalyst preparation reaction kettle and catalyst preparation method

Abstract

The invention discloses a furfural hydrogenation catalyst preparation reaction kettle and a catalyst preparation method, and relates to the technical field of catalyst production equipment.The furfural hydrogenation catalyst preparation reaction kettle is characterized in that when preparation is needed, raw materials are added into a reaction kettle body, a motor is started to enable a rotating shaft to rotate, a stirring mechanism conducts stirring, and meanwhile an auger rotates; the rotating shaft is matched with the fixing sleeve so that raw materials on the lower portion can move upwards, enter the rotating cylinder and are sprayed out of the four spraying holes, the rotating shaft drives the rotating cylinder to rotate through the speed reducing mechanism, the positions of the four spraying holes are changed, and therefore the raw materials can be sprayed all around, and blanking on the upper portion is even. Meanwhile, a plurality of lower rotating rings at the lower part are always kept in a state that one lower rotating ring is low in position and the other lower rotating rings are high in position and are positioned on the same plane, and the lower rotating rings at the low positions can be switched back and forth through the switching mechanism, so that raw materials at all positions can fall into the bottom of the reaction kettle body.

Description

Technical Field

[0001] The invention relates to the technical field of catalyst production equipment, in particular to a furfural hydrogenation catalyst preparation reaction kettle and a catalyst preparation method. Background Art

[0002] In chemical production, the preparation of furfural hydrogenation catalyst requires a series of operations in the reactor, including mixing specific raw materials in proportion and reacting chemically under suitable temperature and pressure conditions to obtain a catalyst that can effectively promote the furfural hydrogenation reaction.

[0003] In order to improve the reaction effect, the existing reactor generally circulates the raw materials during the mixing process, and draws the raw materials at the bottom to the top. Although the raw materials can be directly lifted by an auger, when the raw materials are sucked at the bottom and discharged from the top, the raw materials near the bottom of the auger are sucked first, and when the raw materials are discharged, the raw materials are close to the top of the auger after being discharged, resulting in insufficient circulation of the raw materials and poor mixing effect of the raw materials. For this reason, we disclose a furfural hydrogenation catalyst preparation reactor and a catalyst preparation method. Summary of the invention

[0004] The invention provides a furfural hydrogenation catalyst preparation reaction kettle and a catalyst preparation method to solve the problems raised by the background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: a furfural hydrogenation catalyst preparation reactor, comprising a reactor body, a motor is fixedly installed on the top of the reactor body, the output shaft of the motor extends into the reactor body and is fixedly installed with a rotating shaft, a fixed sleeve is installed in the reactor body, the bottom end of the rotating shaft penetrates the fixed sleeve and is fixedly installed with a stirring mechanism, a rotating cylinder rotatably sleeved on the outside of the rotating shaft is installed on the side of the rotating shaft through a speed reduction mechanism, four uniformly arranged spray holes are opened on the side of the rotating cylinder, and the lower part of the rotating cylinder is rotatably sleeved on the outside of the fixed sleeve; The fixed sleeve on the rotating shaft is connected with an auger which is installed in cooperation with the fixed sleeve. A plurality of concentrically arranged lower rotating rings are arranged outside the lower part of the fixed sleeve. The lower rotating rings are combined into a complete ring and seal the fixed sleeve and the reactor body. The lower rotating rings are arranged to slide relative to each other. When the reactor body is working, only one lower rotating ring is arranged lower than the other lower rotating rings, and the horizontal heights of the other lower rotating rings are the same. Two switching mechanisms are installed on the speed reduction mechanism, and the two switching mechanisms are installed in cooperation with the stirring mechanism.

[0006] Further, the stirring mechanism includes four connecting rods fixedly mounted on the side of the rotating shaft, a plurality of vertically arranged stirring rods are fixedly mounted on the top of the four connecting rods, a plurality of concentrically arranged upper rotating rings are arranged on the upper part of the fixed sleeve, four rod sleeves are installed at the bottom of each upper rotating ring, and the lower rotating ring is fixedly connected to the corresponding rod sleeve; The top end of each stirring rod slides into the corresponding rod sleeve, and a return spring is installed in the rod sleeve, and the return spring is in a compressed state.

[0007] Further, the speed reduction mechanism includes a partition fixedly mounted on the inner wall of the reactor body, an inner gear ring is rotatably mounted on the top of the partition, two mounting shafts are rotatably mounted between the top of the reactor body and the upper side of the partition, an outer gear and a lower bevel gear are fixedly sleeved on the two mounting shafts, the two lower bevel gears are respectively mounted in cooperation with the two switching mechanisms, the two outer gears are meshed with the inner gear ring, a central gear is fixedly sleeved on the rotating shaft, and the central gear is meshed with the two outer gears; Two L-shaped connecting rods are fixedly installed on the inner wall of the inner gear ring, the partition is annular, and the bottom ends of the two L-shaped connecting rods pass through the middle of the partition and are fixedly connected to the top of the rotating cylinder; Two L-shaped mounting rods are fixedly mounted on the bottom of the partition, and the bottom ends of the two L-shaped mounting rods are fixedly mounted on the fixing sleeve.

[0008] Furthermore, a T-shaped slider is fixedly mounted on the inner wall of the partition, a T-shaped groove is arranged around the outer wall of the inner gear ring, and the T-shaped slider is slidably arranged in the T-shaped groove.

[0009] Further, the switching mechanism includes a mounting plate fixedly mounted on the top of the partition, a rotating shaft is rotatably mounted on the mounting plate, one end of the rotating shaft is rotatably mounted on the inner wall of the reactor body, an upper bevel gear meshing with the lower bevel gear is fixedly mounted on the other end of the rotating shaft, a plurality of extrusion rods are fixedly sleeved along the axial direction on the rotating shaft, and a plurality of extrusion rods are rotatably mounted with a rotating wheel at one end away from the rotating shaft; A plurality of pressure holes are provided on the top of the partition, and extrusion assemblies are installed in the plurality of pressure holes. The plurality of extrusion assemblies are respectively installed in cooperation with the plurality of upper rotating rings, and a limiting assembly is installed on the plurality of extrusion assemblies.

[0010] Further, the extrusion assembly includes a pressure rod slidably mounted in the pressure hole, a ball is rotatably mounted on the bottom of the pressure rod, the ball contacts the top of the corresponding upper rotating ring, a pressure plate is fixedly mounted on the top of the pressure rod, and the top of the pressure plate contacts the rotating wheel; A pressure groove is provided on the inner wall of one side of the pressure hole, and a pressure strip is fixedly installed on the side of the pressure rod. The pressure strip corresponds to the position of the pressure groove, and an inclined portion is provided at the bottom of the pressure strip. The inclined portion gradually inclines upward in the direction away from the pressure rod, and the top height of the pressure strip is lower than the top height of the pressure rod.

[0011] Furthermore, the limit assembly includes two limit holes opened on the side of the mounting plate, and limit rods are slidably installed in the two limit holes. A plurality of clamping plates are fixedly installed between the two limit rods, and a cylinder is rotatably installed on the top of the plurality of clamping plates. A limit spring is arranged between the innermost clamping plate and the mounting plate.

[0012] Furthermore, a feed pipe is installed on the side of the reactor body, the bottom end of the feed pipe is located below the partition, a heater is installed on the side of the reactor body, and a discharge pipe is installed at the bottom of the reactor body.

[0013] Furthermore, the bottom of the auger extends outside the fixing sleeve, and the top of the auger is at the same height as the top of the fixing sleeve.

[0014] A method for preparing a catalyst for preparing a reaction kettle for furfural hydrogenation catalyst comprises the following steps: Step 1: Add raw materials through the feed pipe, start the motor, and the output shaft of the motor drives the rotating shaft to rotate, and the rotating shaft drives four connecting rods and multiple stirring rods to rotate, so that the multiple rod sleeves rotate, and then the raw materials in the reactor body are stirred; Step 2: The rotating shaft drives the auger to rotate. The auger cooperates with the fixed sleeve to move the raw materials below upward, so that they enter the rotating cylinder and are sprayed out from the four spray holes. The rotating shaft drives the central gear to rotate, the central gear drives the two outer gears to rotate, the two outer gears drive the inner gear ring to rotate, and the inner gear ring drives the two L-shaped connecting rods and the rotating cylinder to rotate, so that the positions of the four spray holes change; Step 3: The outer gear drives the lower bevel gear to rotate, the lower bevel gear drives the upper bevel gear to rotate, the upper bevel gear drives the rotating shaft to rotate, and the rotating shaft drives the multiple extrusion rods to rotate; When the lever is in the upright position, the upper and lower wheels are in a state of being moved apart, and the upper and lower wheels are in a state of being moved apart, so that the lever is in a state of being moved apart, and the lever is in a state of being moved apart, so that the lever is in a state of being moved apart, and the lever is in a state of being moved apart, so that the lever is in a state of being moved apart.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When preparation is required, the present invention adds raw materials into the reactor body, starts the motor to rotate the rotating shaft, thereby causing the stirring mechanism to stir, and at the same time the auger rotates and cooperates with the fixed sleeve to move the raw materials below upward, thereby entering the rotating cylinder and being sprayed out from four spray holes. The rotating shaft drives the rotating cylinder to rotate through the reduction mechanism, so that the positions of the four spray holes change, so that the raw materials can be sprinkled to the surroundings, and the material falls evenly from the top. At the same time, the multiple lower rotating rings below always keep one lower rotating ring in a low position, and the other lower rotating rings in a high position and in the same plane. The lower rotating ring in a low position can be switched back and forth through the switching mechanism, so that the raw materials in each position can fall into the bottom of the reactor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a reactor for preparing a furfural hydrogenation catalyst; Figure 2 It is a first-perspective stereoscopic image of the reactor body, the lower rotating ring and the partition after being cut apart; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 It is a cross-sectional view of a part of the stirring mechanism and a part of the switching mechanism connected; Figure 6 It is a second perspective stereogram of the reactor body, the lower rotating ring and the partition after being cut apart; Figure 7 A first-person perspective view of the connection between the fixed sleeve, the motor, the rotating shaft, the speed reduction mechanism, the inner gear ring and the auger; Figure 8It is a second perspective stereogram of the connection between the fixed sleeve, motor, rotating shaft, reduction mechanism, inner gear ring and auger.

[0017] In the figure: 1. reactor body; 2. heater; 3. discharge pipe; 4. feed pipe; 5. motor; 6. fixing sleeve; 7. rod sleeve; 8. rotating shaft; 9. auger; 10. connecting rod; 11. stirring rod; 12. lower rotating ring; 13. mounting shaft; 14. central gear; 15. outer gear; 16. lower bevel gear; 17. inner gear ring; 18. partition; 19. upper rotating ring; 20. rotating wheel; 21. rotating shaft; 22. clamping plate; 23. limiting rod; 24. extrusion rod; 25. upper bevel gear; 26. mounting plate; 27. limiting spring; 28. L-shaped mounting rod; 29. ​​pressure groove; 30. reset spring; 31. ball; 32. pressure rod; 33. pressure strip; 34. pressure plate; 35. pressure hole; 36. L-shaped connecting rod; 37. rotating cylinder; 38. spray hole; 39. T-shaped groove. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0019] Figure 1-Figure 8 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 8 The present invention is further described.

[0020] See attached Figure 1-Figure 8 The present invention discloses a furfural hydrogenation catalyst preparation reactor, comprising a reactor body 1, a motor 5 is fixedly installed on the top of the reactor body 1, the output shaft of the motor 5 extends into the reactor body 1 and is fixedly installed with a rotating shaft 8, a fixed sleeve 6 is installed in the reactor body 1, the bottom end of the rotating shaft 8 passes through the fixed sleeve 6 and is fixedly installed with a stirring mechanism, a rotating cylinder 37 rotatably sleeved on the rotating shaft 8 is installed on the side of the rotating shaft 8 through a speed reduction mechanism, four uniformly arranged spray holes 38 are opened on the side of the rotating cylinder 37, the lower part of the rotating cylinder 37 is rotatably sleeved on the outside of the fixed sleeve 6, and a sealing ring is arranged between the rotating cylinder 37 and the fixed sleeve 6; in this embodiment, the fixed sleeve 6 is arranged below the spray holes 38.

[0021] The rotating shaft 8 is fixedly sleeved with an auger 9 which is installed in cooperation with the fixed sleeve 6. A plurality of concentrically arranged lower rotating rings 12 are arranged outside the lower part of the fixed sleeve 6. Each lower rotating ring 12 can be spliced ​​into a complete circular ring. The horizontal height of the outermost lower rotating ring 12 is lower than the horizontal heights of the remaining lower rotating rings 12. Except for the outermost lower rotating ring, the horizontal heights of the remaining lower rotating rings 12 are the same. The sum of the projection areas of the plurality of lower rotating rings 12 and the fixed sleeve 6 when projected in the horizontal direction is equal to the cross-sectional area of ​​the interior of the reactor body 1 at the corresponding cross section. Two switching mechanisms are installed on the speed reduction mechanism, and the two switching mechanisms are installed in cooperation with the stirring mechanism.

[0022] By means of the above structure: when preparation is required, the raw materials are added into the reactor body 1, the motor 5 is started to rotate the rotating shaft 8, so that the stirring mechanism stirs, and at the same time the auger 9 rotates and cooperates with the fixed sleeve 6 to move the raw materials below upward, so that they enter the rotating cylinder 37 and are sprayed out from the four spray holes 38. The rotating shaft 8 drives the rotating cylinder 37 to rotate through the reduction mechanism, so that the positions of the four spray holes 38 change, so that the raw materials can be sprinkled to the surroundings and the falling is uniform. At the same time, the multiple lower rotating rings 12 below always keep one lower rotating ring 12 in a low position, and the other lower rotating rings 12 in a high position and in the same plane. The lower rotating ring 12 in a low position can be switched back and forth through the switching mechanism, so that the raw materials can fall into the bottom of the reactor body 1 through various positions.

[0023] like Figure 2 and Figure 3 As shown, the stirring mechanism includes four connecting rods 10 fixedly installed on the side of the rotating shaft 8, the connecting rods 10 are arranged along the radial direction of the rotating shaft 8, and a plurality of vertically arranged stirring rods 11 are fixedly installed on the top of the four connecting rods 10. A plurality of concentrically arranged upper rotating rings 19 are fixedly installed on the outer side of the fixed sleeve 6. The upper rotating rings 19 correspond to the lower rotating rings 12 one by one and are arranged directly above the corresponding lower rotating rings 12. The bottom of each upper rotating ring 19 is fixedly installed with a plurality of rod sleeves 7 in a ring shape, and the lower rotating ring 12 is fixedly connected to the corresponding rod sleeve 7.

[0024] The stirring rods 11 correspond to the rod sleeves 7 one by one, and the upper end of each stirring rod 11 slides into the corresponding rod sleeve 7. A reset spring 30 is arranged in each rod sleeve 7. The reset spring 30 is located on the upper side of the stirring rod 11 and is in a compressed state. The output shaft of the motor 5 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the connecting rod 10 and the stirring rod 11 to rotate, so that the multiple rod sleeves 7 rotate, and then the raw materials in the reactor body 1 are stirred. Furthermore, an O-ring is fixedly installed on the inner wall of the bottom of each rod sleeve 7 to prevent the material from entering the rod sleeve 7.

[0025] like Figure 4As shown, the speed reduction mechanism includes a partition 18 fixedly mounted on the inner wall of the reactor body 1. The partition 18 is annular and its outer wall is fixedly connected to the reactor body 1. The partition 18 is located at the upper part of the reactor body 1. An inner gear ring 17 is rotatably mounted on the top of the partition 18. Two mounting shafts 13 are rotatably mounted between the top inner wall of the reactor body 1 and the top of the partition 18. The two mounting shafts 13 are symmetrically arranged on both sides of the inner gear ring 17. An outer gear 15 and a lower bevel gear 16 are fixedly sleeved on the two mounting shafts 13. The two lower bevel gears 16 are fixedly sleeved on the two mounting shafts 13. The bevel gears 16 are respectively installed in cooperation with the two switching mechanisms, the two outer gears 15 are meshed with the inner gear ring 17, and the central gear 14 is fixedly sleeved on the rotating shaft 8, and the central gear 14 is meshed with the two outer gears 15; when the rotating shaft 8 rotates, it drives the central gear 14 to rotate, and the central gear 14 drives the two outer gears 15 to rotate, and the two outer gears 15 drive the inner gear ring 17 to rotate, and the inner gear ring 17 drives the two L-shaped connecting rods 36 and the rotating cylinder 37 to rotate, thereby achieving a deceleration effect, so that the rotating cylinder 37 will not rotate too fast.

[0026] Two L-shaped connecting rods 36 are fixedly installed at the bottom of the inner gear ring 17 . The bottom ends of the two L-shaped connecting rods 36 pass through the middle of the partition 18 and are fixedly connected to the top of the rotating cylinder 37 .

[0027] Two L-shaped mounting rods 28 are fixedly mounted on the bottom of the partition 18 , and the bottom ends of the two L-shaped mounting rods 28 are fixedly mounted on the annular side of the fixing sleeve 6 , thereby achieving the installation of the fixing sleeve 6 .

[0028] like Figure 4 and Figure 8 As shown, a T-shaped slider is fixedly installed on the inner wall of the partition 18, and a T-shaped groove 39 is arranged on the lower part of the outer wall surrounding the inner gear ring 17. The T-shaped slider is located in the arc matched by the T-shaped groove 39, and the T-shaped slider is slidably installed in the T-shaped groove 39.

[0029] like Figure 4 and Figure 5 As shown, the switching mechanism includes a mounting plate 26 fixedly mounted on the top of the partition 18, a rotating shaft 21 is rotatably mounted on the mounting plate 26, one end of the rotating shaft 21 is rotatably mounted on the inner wall of the reactor body 1, and an upper bevel gear 25 meshing with the lower bevel gear 16 is fixedly mounted on the other end of the rotating shaft 21, and a plurality of extrusion rods 24 are fixedly sleeved along the axial direction on the rotating shaft 21, the extrusion rods 24 correspond to the upper rotating ring 19 one by one, and a rotating wheel 20 is rotatably mounted on one end of the plurality of extrusion rods 24 away from the rotating shaft 21; the outer gear 15 drives the lower bevel gear 16 to rotate, the lower bevel gear 16 drives the upper bevel gear 25 to rotate, the upper bevel gear 25 drives the rotating shaft 21 to rotate, and the rotation of the rotating shaft 21 drives the plurality of extrusion rods 24 to rotate.

[0030] A plurality of pressure holes 35 are provided on the top of the partition 18. Extrusion components are installed in the plurality of pressure holes 35. The plurality of extrusion components are respectively installed in cooperation with the plurality of upper rotating rings 19. The plurality of extrusion components are installed with limit assemblies.

[0031] The multiple extrusion rods 24 on the two rotating shafts 21 are evenly spaced in the circumferential direction, and the corresponding extrusion rods 24 on the two rotating shafts 21 are arranged in parallel. In this way, only the extrusion rods 24 located on the same circle squeeze the pressure plate 34 each time, and the other extrusion rods 24 do not squeeze the pressure plate 34.

[0032] like Figure 4 and Figure 5 As shown, the extrusion assembly includes a pressure rod 32 slidably installed in a pressure hole 35, and a ball 31 is rotatably installed at the bottom of the pressure rod 32. Through the setting of the ball 31, when the upper rotating ring 19 rotates, the ball 31 can roll on the top of the upper rotating ring 19, and the ball 31 contacts the top of the corresponding upper rotating ring 19. A pressure plate 34 is fixedly installed on the top of the pressure rod 32, and the top of the pressure plate 34 contacts the rotating wheel 20.

[0033] A pressure groove 29 is provided on the inner wall of one side of the pressure hole 35, and a pressure strip 33 is fixedly installed on the side of the pressure rod 32. The pressure strip 33 corresponds to the position of the pressure groove 29, and an inclined portion is provided at the bottom of the pressure strip 33, which gradually inclines upward in the direction away from the corresponding pressure rod 32.

[0034] At the beginning, the rotating wheel 20 on the extrusion rod 24 located on the same circular ring is in contact with the corresponding pressure plate 34, that is, the top height of the pressure plate 34 located on the circular ring is lower than the top height of the remaining pressure plates 34, and at the same time, the top of the pressure strip 33 is in contact with the bottom of the corresponding clamping plate 22. At this time, the upper rotating ring 19 and the lower rotating ring 12 located below the pressure strip 33 are in a lower position. When the rotating shaft 8 sucks away the raw materials at the bottom, the raw materials above the lower rotating ring 12 with a low position can leak into the bottom of the reactor body 1.

[0035] When the reactor body 1 is working, the height of the lower rotating ring 12 will change when and only when the pressure plate 34 rotates to the lower side of the extrusion rod 24. Since two rotating shafts 21 are provided in the present application, and the extrusion rod 24 is installed on the rotating shaft 21, the height of the lower rotating ring 12 will be adjusted every time the lower rotating ring 12 rotates 180°.

[0036] like Figure 4 and Figure 5As shown, the limit assembly includes two limit holes opened on the side of the mounting plate 26, and the limit rods 23 are slidably installed in the two limit holes. A plurality of clamps 22 are fixedly installed between the two limit rods 23, and the clamps 22 are located on the side of the corresponding pressure rod 32 where the pressure strip 33 is provided. When the outermost clamp 22 is located above the pressure strip 33, and the remaining clamps 22 are respectively located below the corresponding pressure strips 33, the bottom of the clamp 22 located above the pressure strip 33 contacts the top of the pressure strip 33, and a limit spring 27 is provided between the innermost clamp 22 and the mounting plate 26. Preferably, the limit spring 27 can be sleeved outside the limit rod 23, and the limit spring 27 is in a compressed state. The movement of the pressure plate 34 drives the pressure rod 32 and the pressure strip 33 to move downward, and the pressure strip 33 squeezes the cylinder through the inclined portion, so that the cylinder moves away from the pressure strip 33, and the cylinder drives the card plate 22 to move, and the card plate 22 drives the remaining card plates 22 to move synchronously through the two limit rods 23, and all the card plates 22 are staggered with the pressure strip 33. Since the return spring 30 under the low position of the pressure strip 33 is in a deformed state at this time, the corresponding upper rotating ring 19 moves upward under the action of the return spring 30, and the upper rotating ring 19 squeezes the ball 31, so that the pressure rod 32 moves upward until it returns to its original state. When the pressure plate 34 moves downward to the maximum position, the squeezing rod 24 is vertically arranged downward. At this time, the pressure strip 33 is staggered with the card plate 22, and under the action of the limit spring 27, the card plate 22 moves to clamp the top of the pressure strip 33. At this time, the lower rotating ring 12 located under the pressure strip 33 is at the lowest position, and the remaining lower rotating rings 12 are at the same height, thereby entering the raw material. A cylinder is rotatably mounted on the top of each of the plurality of clamping plates 22 .

[0037] like Figure 1 As shown, a feed pipe 4 is installed on the side of the reactor body 1, and the bottom end of the feed pipe 4 is located below the partition 18. A controller is installed on the side of the reactor body 1. A heater 2 is installed on the side of the reactor body 1. The heater 2 is used for heating so that the raw materials can react. A discharge pipe 3 is installed at the bottom of the reactor body 1, and a solenoid valve is provided on the discharge pipe 3. The controller is used to control the motor 5 and the heater 2.

[0038] like Figure 3 , Figure 7 and Figure 8 As shown, the bottom of the auger 9 extends outside the fixed sleeve 6, and the top of the auger 9 is at the same height as the top of the fixed sleeve 6. The advantage of this arrangement is that it is convenient to pump the raw material upwards.

[0039] The present application also discloses a method for preparing the catalyst of the furfural hydrogenation catalyst preparation reactor, comprising the following steps: Step 1: The raw material for preparing the furfural hydrogenation catalyst can be added through the feed pipe 4, and then the motor 5 is started, and the output shaft of the motor 5 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives four connecting rods 10 and a plurality of stirring rods 11 to rotate, so that the plurality of rod sleeves 7 rotate, and then the raw material in the reactor body 1 is stirred; Step 2, at the same time, the rotating shaft 8 drives the auger 9 to rotate, and the auger 9 cooperates with the fixed sleeve 6 so that the raw materials below move upward and enter the rotating cylinder 37, and are sprayed out from the four spray holes 38. When the rotating shaft 8 rotates, it drives the central gear 14 to rotate, and the rotation of the central gear 14 drives the two outer gears 15 to rotate, and the rotation of the two outer gears 15 drives the inner gear ring 17 to rotate, and the rotation of the inner gear ring 17 drives the two L-shaped connecting rods 36 and the rotating cylinder 37 to rotate, so that the positions of the four spray holes 38 change, so that the raw materials can be sprinkled all around.

[0040] Step 3: The outer gear 15 drives the lower bevel gear 16 to rotate, the lower bevel gear 16 drives the upper bevel gear 25 to rotate, the upper bevel gear 25 drives the rotating shaft 21 to rotate, and the rotating shaft 21 drives the multiple extrusion rods 24 to rotate.

[0041] The fourth step is to switch between the two positions, wherein the extrusion rod 24 located on the same circular ring makes the rotating wheel 20 contact with the top of the corresponding pressure plate 34, thereby squeezing the pressure plate 34 to move it downward, and the movement of the pressure plate 34 drives the pressure rod 32 and the pressure strip 33 to move, and the pressure strip 33 squeezes the cylinder through the inclined portion, thereby causing the cylinder to move downward, and the movement of the cylinder drives the card plate 22 to move in the direction away from the corresponding pressure strip 33, and the card plate 22 drives the remaining card plates 22 to move through the two limit rods 23, and all the card plates 22 are staggered with the pressure strip 33, and at the same time, the lower pressure strip 33 is reset under the action of the reset spring 30, and the upper rotating ring 19 moves upward under the action of the reset spring 30, and the upper rotating ring 19 moves the extrusion ball 31 so that the pressure rod 32 moves upward until it returns to its original state. When the pressure plate 34 moves downward to the maximum position, the extrusion rod 24 is set vertically downward. At this time, the pressure strip 33 and the clamping plate 22 are staggered. Under the action of the limit spring 27, the clamping plate 22 moves to clamp the top of the pressure strip 33. At this time, the lower rotating ring 12 located below the pressure strip 33 is at the lowest position, and the heights of the remaining lower rotating rings 12 are the same, and this reciprocating process is repeated, so that one lower rotating ring 12 is always in a low position and the remaining lower rotating rings 12 are in a high position. The lower rotating ring 12 in a low position can be switched back and forth, so that the raw materials at each position can fall into the bottom of the reactor body 1.

[0042] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the above disclosed technical contents to change or modify them into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A furfural hydrogenation catalyst preparation reactor, characterized in that: The invention comprises a reactor body (1), a motor (5) is fixedly mounted on the top of the reactor body (1), an output shaft of the motor (5) extends into the reactor body (1) and is fixedly mounted with a rotating shaft (8), a fixing sleeve (6) is mounted in the reactor body (1), the bottom end of the rotating shaft (8) passes through the fixing sleeve (6) and is fixedly mounted with a stirring mechanism, a rotating cylinder (37) is mounted on the side of the rotating shaft (8) through a speed reduction mechanism and is rotatably sleeved on the outside of the rotating shaft (8), four uniformly arranged spray holes (38) are opened on the side of the rotating cylinder (37), and the lower part of the rotating cylinder (37) is rotatably sleeved on the outside of the fixing sleeve (6); The rotating shaft (8) is fixedly sleeved with an auger (9) which is mounted in cooperation with the fixed sleeve (6); a plurality of concentrically arranged lower rotating rings (12) are arranged outside the lower portion of the fixed sleeve (6); the lower rotating rings (12) are combined into a complete ring shape and seal the space between the fixed sleeve (6) and the reactor body (1); the lower rotating rings (12) are arranged to slide relative to each other; when the reactor body (1) is working, only one lower rotating ring (12) is arranged lower than the other lower rotating rings (12); and the other lower rotating rings (12) are at the same level; Two switching mechanisms are installed on the speed reduction mechanism, and the two switching mechanisms are installed in cooperation with the stirring mechanism.

2. The furfural hydrogenation catalyst preparation reactor according to claim 1, characterized in that: The stirring mechanism comprises four connecting rods (10) fixedly mounted on the side of the rotating shaft (8), a plurality of vertically arranged stirring rods (11) being fixedly mounted on the top of each of the four connecting rods (10), a plurality of concentrically arranged upper rotating rings (19) being arranged on the upper portion of the fixed sleeve (6), four rod sleeves (7) being mounted on the bottom of each of the upper rotating rings (19), and the lower rotating ring (12) being fixedly connected to the corresponding rod sleeve (7); The top end of each stirring rod (11) slides into the corresponding rod sleeve (7), and a return spring (30) is also installed in the rod sleeve (7), and the return spring (30) is in a compressed state.

3. The furfural hydrogenation catalyst preparation reactor according to claim 2, characterized in that: The speed reduction mechanism comprises a partition (18) fixedly mounted on the inner wall of the reactor body (1), an inner gear ring (17) being rotatably mounted on the top of the partition (18), two mounting shafts (13) being rotatably mounted between the top of the reactor body (1) and the upper side of the partition (18), an outer gear (15) and a lower bevel gear (16) being fixedly sleeved on the two mounting shafts (13), the two lower bevel gears (16) being respectively mounted in cooperation with the two switching mechanisms, the two outer gears (15) being meshed with the inner gear ring (17), a central gear (14) being fixedly sleeved on the rotating shaft (8), the central gear (14) being meshed with the two outer gears (15); Two L-shaped connecting rods (36) are fixedly mounted on the inner wall of the inner gear ring (17); the partition plate (18) is in the shape of a circular ring; the bottom ends of the two L-shaped connecting rods (36) penetrate the middle of the partition plate (18) and are fixedly connected to the top of the rotating cylinder (37); Two L-shaped mounting rods (28) are fixedly mounted on the bottom of the partition (18), and the bottom ends of the two L-shaped mounting rods (28) are fixedly mounted on the fixing sleeve (6).

4. The furfural hydrogenation catalyst preparation reactor according to claim 3, characterized in that: A T-shaped slider is fixedly mounted on the inner wall of the partition plate (18), a T-shaped groove (39) is arranged around the outer wall of the inner gear ring (17), and the T-shaped slider is slidably arranged in the T-shaped groove (39).

5. The furfural hydrogenation catalyst preparation reactor according to claim 3, characterized in that: The switching mechanism comprises a mounting plate (26) fixedly mounted on the top of the partition (18); a rotating shaft (21) is rotatably mounted on the mounting plate (26); one end of the rotating shaft (21) is rotatably mounted on the inner wall of the reactor body (1); an upper bevel gear (25) meshing with the lower bevel gear (16) is fixedly mounted on the other end of the rotating shaft (21); a plurality of extrusion rods (24) are fixedly sleeved along the axial direction on the rotating shaft (21); and a rotating wheel (20) is rotatably mounted on one end of each of the plurality of extrusion rods (24) away from the rotating shaft (21); A plurality of pressure holes (35) are provided on the top of the partition (18), and extrusion assemblies are installed in the plurality of pressure holes (35). The plurality of extrusion assemblies are respectively installed in cooperation with the plurality of upper rotating rings (19), and a limit assembly is installed on the plurality of extrusion assemblies.

6. The furfural hydrogenation catalyst preparation reactor according to claim 5, characterized in that: The extrusion assembly comprises a pressure rod (32) slidably mounted in the pressure hole (35); a ball (31) is rotatably mounted on the bottom of the pressure rod (32); the ball (31) contacts the top of the corresponding upper rotating ring (19); a pressure plate (34) is fixedly mounted on the top of the pressure rod (32); the top of the pressure plate (34) contacts the rotating wheel (20); A pressure groove (29) is provided on the inner wall of one side of the pressure hole (35); a pressure strip (33) is fixedly mounted on the side of the pressure rod (32); the pressure strip (33) corresponds to the position of the pressure groove (29); an inclined portion is provided at the bottom of the pressure strip (33); the inclined portion gradually inclines upward in a direction away from the pressure rod (32); and the top height of the pressure strip (33) is lower than the top height of the pressure rod (32).

7. The furfural hydrogenation catalyst preparation reactor according to claim 6, characterized in that: The limiting assembly comprises two limiting holes opened on the side of the mounting plate (26), limiting rods (23) are slidably installed in the two limiting holes, a plurality of clamping plates (22) are fixedly installed between the two limiting rods (23), a cylinder is rotatably installed on the top of the plurality of clamping plates (22), and a limiting spring (27) is arranged between the innermost clamping plate (22) and the mounting plate (26).

8. The furfural hydrogenation catalyst preparation reactor according to claim 3, characterized in that: A feed pipe (4) is installed on the side of the reactor body (1), and the bottom end of the feed pipe (4) is located below the partition (18). A heater (2) is installed on the side of the reactor body (1), and a discharge pipe (3) is installed at the bottom of the reactor body (1).

9. The furfural hydrogenation catalyst preparation reactor according to claim 1, characterized in that: The bottom of the auger (9) extends outside the fixing sleeve (6), and the top of the auger (9) is at the same height as the top of the fixing sleeve (6).

10. A method for preparing a catalyst for preparing a furfural hydrogenation catalyst reactor according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Add raw materials through the feed pipe (4), start the motor (5), and the output shaft of the motor (5) drives the rotating shaft (8) to rotate. The rotating shaft (8) drives four connecting rods (10) and a plurality of stirring rods (11) to rotate, thereby causing the plurality of rod sleeves (7) to rotate, thereby stirring the raw materials in the reactor body (1); Step 2: The rotating shaft (8) drives the auger (9) to rotate. The auger (9) cooperates with the fixed sleeve (6) to move the raw material below upward, thereby entering the rotating cylinder (37) and being sprayed out from the four spray holes (38). The rotating shaft (8) drives the central gear (14) to rotate. The central gear (14) drives the two outer gears (15) to rotate. The two outer gears (15) drive the inner gear ring (17) to rotate. The inner gear ring (17) drives the two L-shaped connecting rods (36) and the rotating cylinder (37) to rotate, thereby changing the positions of the four spray holes (38). Step 3: The outer gear (15) drives the lower bevel gear (16) to rotate, the lower bevel gear (16) drives the upper bevel gear (25) to rotate, the upper bevel gear (25) drives the rotating shaft (21) to rotate, and the rotating shaft (21) drives the plurality of extrusion rods (24) to rotate; Step 4: During the switching, the extrusion rod (24) located on the same circular ring rotates so that the rotating wheel (20) contacts the top of the corresponding pressure plate (34), thereby squeezing the pressure plate (34) to move it downward, and the pressure plate (34) drives the pressure rod (32) and the pressure strip (33) to move, and the pressure strip (33) squeezes the cylinder through the inclined portion, so that the cylinder moves away from the pressure strip (33), and the movement of the cylinder drives the card plate (22) to move, and the card plate (22) drives the remaining card plates (22) to move through the two limit rods (23), and all the card plates (22) are staggered with the pressure strip (33), and the reset spring under the lower pressure strip (33) is The spring (30) is in a deformed state. Under the action of the return spring (30), the upper rotating ring (19) moves upward. The upper rotating ring (19) moves the extrusion ball (31) so that the pressure rod (32) moves upward until it returns to its original state. When the pressure plate (34) moves downward to the maximum position, the extrusion rod (24) is set vertically downward. At this time, the pressure strip (33) and the clamping plate (22) are staggered. Under the action of the limit spring (27), the clamping plate (22) moves to clamp the top of the pressure strip (33). At this time, the lower rotating ring (12) located below the pressure strip (33) is at the lowest position, and the other lower rotating rings 12 are at the same height.

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