Device and method for producing furfuryl alcohol by using supergravity reactor

Abstract

The invention relates to the technical field of furfuryl alcohol processing, in particular to a device and a method for producing furfuryl alcohol by using a supergravity reactor. Comprising a supergravity reactor body, and a transfer tank, a condenser and a purification tank are arranged on the left side of the supergravity reactor body. According to the device, a movable rod can rotate through a motor, the movable rod rotates to enable a plurality of air outlet holes to move up and down through a reciprocating threaded guide sleeve, a movable column and a hollow rod, meanwhile, the movable rod rotates to enable the movable column to rotate, and the movable column rotates to enable the air outlet holes to do circular motion through the hollow rod; the hollow rod rotates while performing circular motion, and the hollow rod rotates to enable the air outlet holes to rotate, so that steam is in contact with furfural solutions at different heights, different horizontal positions and different vertical positions, the heat transfer area is enlarged, the purification efficiency is improved, and meanwhile, furfural residues caused by furfural decomposition or dead angle generation due to local overheating are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of furfuryl alcohol processing, and particularly relates to a device and a production method for producing furfuryl alcohol by using a high gravity reactor. Background Art

[0002] Furfuryl alcohol is an important organic solvent and chemical raw material, which is widely used in industries such as medicine, pesticides, coatings, dyes, etc. The high gravity reactor uses the centrifugal force generated by rotation to accelerate the reaction rate. In a device with high-speed rotation, the centrifugal force generated by rotation can be up to more than 1000 times that of gravity. Driven by the powerful centrifugal force, the mixing and transfer of materials are strongly enhanced, thus significantly accelerating chemical reactions or other mass transfer and heat transfer processes limited by the mixing and transfer speed of materials. When processing furfuryl alcohol, a high gravity reactor will be used for preparation.

[0003] In the prior art, when producing furfuryl alcohol with a high gravity reactor, furfural and hydrogen need to be quickly mixed by rotation and centrifugation. Before adding furfural and hydrogen for mixing, furfural needs to be purified. When purifying furfural, it is first mixed with a sodium hydroxide solution, and then washed with water to remove residual alkali liquor and desalted inorganic salts. After washing with water, dehydration is carried out, and then purification is carried out by steam stripping method. However, when using the existing steam stripping method for purification, the steam input position is fixed, and it cannot contact the furfural solution at different positions and heights, which easily leads to uneven gas-liquid contact and affects the heat transfer efficiency. At the same time, it easily causes local overheating, resulting in high-temperature polymerization of furfural or the formation of dead corners, leading to the residue of furfural solution, which is not convenient for use. Summary of the Invention

[0004] Based on this, it is necessary to provide a device and a production method for producing furfuryl alcohol by using a high gravity reactor in view of the problems in the prior art.

[0005] To solve the problems in the prior art, the technical solution adopted by the present invention is: a device for producing furfuryl alcohol by using a high gravity reactor, including a high gravity reactor body. A transfer tank, a condenser and a purification tank are arranged on the left side of the high gravity reactor body. Among them, the transfer tank, the tube side of the condenser and the purification tank are connected in sequence, and a uniform jetting mechanism is arranged on the purification tank; The uniform jetting mechanism includes two hollow rods and four fixed columns arranged in the purification tank. A plurality of connection holes are opened on the side of each of the two hollow rods. A plurality of movable cylinders communicated with the connection holes are installed on the outer circumferential walls of the two hollow rods. A plurality of air outlet holes are opened on the outer walls of the plurality of movable cylinders. A plurality of crushing plates are installed at the bottoms of the four fixed columns. A driving and gas adding component is arranged on the purification tank to move and rotate the two hollow rods and the four fixed columns simultaneously.

[0006] Further, the driving gas filling assembly includes a movable sleeve rotatably installed at the top of the purification tank. Above the purification tank, there is a lifting plate. A movable column is rotatably installed on the lifting plate. The lower part of the movable column passes through the movable sleeve and extends into the purification tank. Both of the hollow rods are rotatably connected to the movable column. On one side of the upper part of the movable column, there is a movable block. A movable groove adapted to the movable block is provided on the inner wall of the movable sleeve. The top of the movable column is rotatably installed with a lifting cylinder. One side of the lifting cylinder is provided with a movable block. The top of the lifting cylinder is connected with a connecting pipe. An activity cavity is provided on the movable column. Exhaust holes and flow holes communicating with the activity cavity are respectively provided on the circumferential outer walls of the lifting cylinder and the two hollow rods. An I-shaped ring is sleeved on the movable column. An annular block is rotatably sleeved on the I-shaped ring. Four fixing plates are installed on the circumferential outer wall of the annular block. A movable rod is rotatably installed on each of the four fixing plates. A rectangular block is fixedly installed on each of the four movable rods. The four fixed columns are respectively installed at the bottoms of the four rectangular blocks. A driving unit is provided on the purification tank to make the movable sleeve, the two hollow rods, the four rectangular blocks rotate and the lifting plate move up and down.

[0007] Further, the driving unit includes a protective box installed at the top of the purification tank. An avoidance hole adapted to the lifting cylinder and the movable block is provided at the top of the protective box. A driven element for making the two hollow rods rotate is provided on the lifting cylinder. A motor is installed at the top of the protective box. A movable rod and a driven rod are rotatably installed at the top of the purification tank. The top end of the movable rod extends outside the protective box and is fixedly connected to the output shaft of the motor. A reciprocating thread guide sleeve is sleeved on the movable rod. The lifting plate is threadedly connected to the reciprocating thread guide sleeve. A guiding element adapted to the lifting plate is provided on the protective box. The bottoms of the movable rod and the three driven rods are respectively fixedly connected to the corresponding rectangular blocks. The movable rod is connected to the movable sleeve and the three driven rods through a transmission element.

[0008] Further, the guiding element includes a guiding rod installed in the protective box. The lifting plate is slidably connected to the guiding rod.

[0009] Further, the driven element includes a first bevel gear installed at the bottom of the lifting cylinder. A second bevel gear is installed at one end of each of the two hollow rods close to each other. Both of the second bevel gears are meshed with the first bevel gear.

[0010] Further, a sealing door is hingedly installed on the side of the protective box.

[0011] Further, the transmission element includes a first circular gear sleeved on the movable sleeve, a second circular gear sleeved on the movable rod, the first circular gear and the second circular gear are meshed with each other, and third circular gears are installed on the tops of the three driven rods, and the three third circular gears are all meshed with the first circular gear.

[0012] Further, the diameter of the first circular gear is larger than the diameters of the second circular gear and the third circular gears.

[0013] Further, screen meshes are installed in multiple air outlet holes.

[0014] A production method of the device for producing furfuryl alcohol by using a high gravity reactor as described above includes the following steps: S1. Load the washed furfural solution into the purification tank through the feed port, and make the steam discharged from the air outlet holes contact the furfural solution. S2. When the steam contacts the furfural solution, drive the gas adding assembly to move the air outlet holes up and down through the hollow rod and the movable cylinder, and at the same time, the hollow rod will rotate. The rotation of the hollow rod will make the air outlet holes move in a circular motion along the hollow rod, so that the steam contacts the furfural solution at different heights, different horizontal and vertical positions. S3. Drive the gas adding assembly to make the rectangular block rotate, and the rectangular block will make the crushing plate rotate, so as to cut the bubbles generated when adding steam. S4. When the azeotropic mixture gas formed by water vapor and furfural rises above the liquid surface of the solution, it will enter the condenser for condensation. After condensation, it is output to the transfer tank for sedimentation. After the sedimentation is completed, first preheat the furfural, and then output the purified furfural solution to the high gravity reactor body through a plunger pump. Then add hydrogen and a catalyst, and react efficiently with hydrogen under the action of a high-speed rotor and a copper-based catalyst to prepare furfuryl alcohol.

[0015] The beneficial effects of the present invention compared with the prior art are as follows: First: By setting the motor in this device, the movable rod can be rotated. The rotation of the movable rod will make the moving column move up and down through the reciprocating thread guide sleeve. The up and down movement of the moving column will make the multiple air outlet holes move up and down through the hollow rod. At the same time, the rotation of the movable rod will make the moving column rotate. The rotation of the moving column will make the multiple air outlet holes move in a circular motion with the moving column as the center. At this time, since the lifting cylinder is relatively stationary, while the hollow rod makes a circular motion, it will also rotate. The rotation of the hollow rod will make the air outlet holes rotate, so that the steam contacts the furfural solution at different heights, different horizontal and vertical positions, thereby expanding the heat transfer area, improving the purification efficiency, and at the same time avoiding the decomposition of furfural caused by local overheating or the formation of dead corners resulting in furfural residue.

[0016] Second: By setting the I-shaped ring, annular block, fixed plate, and moving rod, the rectangular block can move up and down with the moving column. The up-and-down movement of the rectangular block will cause the crushing plate to move up and down through the fixed column, so that the crushing plate is always above the air outlet. At the same time, when the movable rod rotates, the rectangular block will rotate through the first circular gear, second circular gear, third circular gear, and driven rod. The rotation of the rectangular block will cause the crushing plate to rotate through the fixed column, thereby cutting the bubbles generated when adding steam, refining the bubble size, increasing the gas-liquid contact area, effectively improving the purification efficiency, and enhancing the separation effect.

[0017] Third: By setting the first circular gear, second circular gear, and third circular gear, while ensuring the crushing effect of the crushing rod rotation, the rotation speed of the movable sleeve is reduced, thus avoiding the situation of violent liquid turbulence caused by too fast stirring speed, and then a large amount of foam or liquid droplets splashing. Description of the Drawings

[0018] Figure 1 is the three-dimensional structure schematic diagram of the first perspective in the embodiment; Figure 2 is the three-dimensional structure schematic diagram of the first perspective of the purification tank in the embodiment; Figure 3 is the three-dimensional structure schematic diagram of the partial section of the purification tank in the embodiment; Figure 4 is Figure 3 the enlarged view of the structure at A in Figure 5 is Figure 3 the enlarged view of the structure at B in Figure 6 is the three-dimensional structure schematic diagram of the partial section of the purification tank, moving column, movable rod, and driven rod in the embodiment; Figure 7 is Figure 6 the enlarged view of the structure at C in Figure 8 is Figure 6 the enlarged view of the structure at D in

[0019] The reference numerals in the figure are: 1, the main body of the high gravity reactor; 2, the transfer tank; 3, the condenser; 4, the purification tank; 5, the pressure discharge pipe; 6, the feed inlet; 7, the protective box; 8, the sealing door; 9, the gas outlet pipe; 10, the movable sleeve; 11, the moving column; 12, the moving block; 13, the lifting cylinder; 14, the movable block; 15, the connecting pipe; 16, the hollow rod; 17, the movable cylinder; 18, the air outlet hole; 19, the flow hole; 20, the exhaust hole; 21, the first bevel gear; 22, the second bevel gear; 23, the motor; 24, the movable rod; 25, the reciprocating thread guide sleeve; 26, the lifting plate; 27, the guide rod; 28, the first circular gear; 29, the second circular gear; 30, the driven rod; 31, the third circular gear; 32, the I-shaped ring; 33, the annular block; 34, the fixed plate; 35, the moving rod; 36, the rectangular block; 37, the fixed column; 38, the crushing plate; 39, the isolation box; 40, the sewage outlet; 41, the screen; 42, the movable cavity. Specific embodiments

[0020] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0021] Figures 1 - 8 This is the best embodiment of the present invention. The following will further explain the present invention in conjunction with the attached Figures 1 - 8 drawings.

[0022] The device for producing furfuryl alcohol using a high gravity reactor includes the main body 1 of the high gravity reactor. A transfer tank 2, a condenser 3 and a purification tank 4 are arranged on the left side of the main body 1 of the high gravity reactor. Among them, the tube passes of the transfer tank 2 and the condenser 3 and the purification tank 4 are connected in sequence. A feed inlet 6 and a gas outlet pipe 9 are arranged at the top of the purification tank 4. Valves are arranged on both the feed inlet 6 and the gas outlet pipe 9. The gas outlet pipe 9 is communicated with the tube pass inlet of the condenser 3. A sewage outlet 40 is arranged at the bottom of the purification tank 4, and a valve is also arranged on the sewage outlet 40. A pressure discharge pipe 5 with a valve is fixedly arranged on the side of the purification tank 4. A uniform air jetting mechanism is arranged on the purification tank 4. The main body 1 of the high gravity reactor, the transfer tank 2 and the condenser 3 are all prior arts and are relatively mature. Their connection and installation methods and usage methods will not be elaborated here.

[0023] The uniform jetting mechanism includes two hollow rods 16 and four fixed columns 37 arranged in the purification tank 4. The two hollow rods 16 are both arranged at the lower part of the purification tank 4, and the two hollow rods 16 are both arranged along the radial direction of the purification tank 4. A plurality of connection holes are formed in the side parts of the two hollow rods 16, and a plurality of movable cylinders 17 communicating with the connection holes are installed on the outer walls of the two hollow rods 16 along the radial direction. A plurality of air outlet holes 18 are formed in the side parts of the plurality of movable cylinders 17. The four fixed columns 37 are all arranged above the hollow rods 16, and the four fixed columns 37 are all arranged along the axial direction of the purification tank 4. The four fixed columns 37 are arranged in a circular array, and a plurality of crushing plates 38 are installed at the bottoms of the four fixed columns 37. A driving air adding component for moving the two hollow rods 16 and the four fixed columns 37 is arranged on the purification tank 4.

[0024] With the above structure, during use, steam can be jetted out from the plurality of air outlet holes 18. The driving air adding component can move the two hollow rods 16 up and down. When the hollow rods 16 move up and down, they will drive the movable cylinders 17 to move up and down, thereby causing the air outlet holes 18 to move up and down, so that the steam contacts the furfural solution at different heights. At the same time, the driving air adding component can make the hollow rods 16 rotate around the axis of the purification tank 4 and rotate around their own axes, thereby enabling the steam to contact the furfural solution at different horizontal and vertical positions, thus expanding the heat transfer area, improving the purification efficiency, and at the same time avoiding furfural decomposition caused by local overheating or the generation of dead corners resulting in furfural residue. At the same time, the driving air adding component will make the fixed columns 37 rotate around their own axes, and the rotation of the fixed columns 37 will cause the crushing plates 38 to rotate, thereby cutting the bubbles generated when adding steam, thus refining the bubble size, increasing the gas-liquid contact area, effectively improving the purification efficiency, and strengthening the separation effect.

[0025] Such as Figures 3 - 5As shown in the figure, the driving gas charging component includes a movable sleeve 10 rotatably installed on the top of the purification tank 4 through a first sealing component. The sealing component can adopt mechanical sealing. Above the purification tank 4, there is a lifting plate 26. A moving column 11 is rotatably installed on the lifting plate 26. The lower part of the moving column 11 passes through the movable sleeve 10 and extends into the purification tank 4. Both hollow rods 16 are rotatably connected to the moving column 11 through a second sealing component. On one side of the upper part of the moving column 11, a moving block 12 is axially installed. A moving groove matching with the moving block 12 is opened on the inner wall of the movable sleeve 10, so that the moving column 11 and the movable sleeve 10 rotate synchronously, and the moving column 11 and the movable sleeve 10 can move relatively axially. The top of the moving column 11 is rotatably installed with a lifting cylinder 13 through a third sealing component. An axially movable block 14 is installed on the side of the lifting cylinder 13. A connecting pipe 15 is connected to the top of the lifting cylinder 13. An activity cavity 42 communicating with the lifting cylinder 13 is opened on the moving column 11. Exhaust holes 20 and flow holes 19 are respectively opened on the circumferential outer walls of the lifting cylinder 13 and the two hollow rods 16. Among them, the lifting cylinder 13 is communicated with the activity cavity 42 through the exhaust hole 20, and the hollow rod 16 is communicated with the activity cavity 42 through the flow hole 19. An I-shaped ring 32 is sleeved on the upper part of the moving column 11. A ring-shaped block 33 is rotatably sleeved on the I-shaped ring 32. Four fixing plates 34 are evenly distributed at intervals on the side of the ring-shaped block 33. The fixing plates 34 are arranged along the radial direction of the ring-shaped block 33. Moving rods 35 are rotatably installed on the four fixing plates 34. Rectangular blocks 36 are fixedly installed on the four moving rods 35. Four fixing columns 37 are respectively installed at the bottoms of the four rectangular blocks 36. A driving unit is arranged on the purification tank 4 to make the movable sleeve 10, the two hollow rods 16, and the four rectangular blocks 36 rotate around their own axes and make the lifting plate 26 move up and down.

[0026] In this solution, while the movable sleeve 10 and the moving column 11 rotate, the moving column 11 can also move up and down. At the same time, the up and down movement of the moving column 11 drives the rectangular block 36 to move up and down.

[0027] Specifically, by making the moving column 11 move up and down while the movable sleeve 10 and the moving column 11 rotate, the hollow rod 16 can move up and down while making a circular motion, and further the air outlet 18 can move up and down while making a circular motion, so that the steam contacts the furfural solution at different heights and different horizontal positions. By making the rectangular block 36 move up and down with the moving column 11, the crushing plate 38 can always be above the air outlet 18.

[0028] Such as Figure 1 、 Figure 3 and Figure 4As shown, the driving unit includes a protective box 7 installed on the top of the purification tank 4. An avoidance hole adapted to the lifting cylinder 13 and the movable block 14 is provided at the top of the protective box 7, so that the lifting cylinder 13 can move axially but cannot rotate. A driven element for rotating the two hollow rods 16 is provided on the lifting cylinder 13. A motor 23 is installed on the top of the protective box 7. The top of the purification tank 4 is rotatably installed with a movable rod 24 and a driven rod 30 through a fourth sealing assembly. The top end of the movable rod 24 extends outside the protective box 7 and is fixedly connected to the output shaft of the motor 23. A reciprocating thread guide sleeve 25 is fixedly sleeved outside the movable rod 24. The lifting plate 26 is threadedly connected to the reciprocating thread guide sleeve 25. A guiding element adapted to the lifting plate 26 is provided on the protective box 7. There are three driven rods 30. The three driven rods 30 and the movable rod 24 are arranged in a ring shape. Rectangular grooves adapted to the rectangular block 36 are provided at the bottoms of the movable rod 24 and the three driven rods 30. The upper part of the rectangular block 36 is slidably inserted into the rectangular groove and fixedly connected thereto. The movable rod 24 is connected to the movable sleeve 10 and the three driven rods 30 through a transmission element.

[0029] In this solution, through the settings of the protective box 7, the motor 23, the movable rod 24, the reciprocating thread guide sleeve 25, the driven rod 30 and the rectangular groove, it is convenient to move the lifting plate 26 up and down, and at the same time, the rectangular block 36 can rotate while lifting.

[0030] Specifically, by moving the lifting plate 26 up and down, the moving column 11 can be driven to move up and down, so that the position of the air outlet 18 is constantly changed. By rotating the rectangular block 36 while lifting, it is convenient to rotate the crushing plate 38 at any height. At the same time, through the setting of the protective box 7, a certain protective effect can be achieved to avoid the influence of the external environment on the transmission of the internal devices.

[0031] As Figure 4 shown, the guiding element includes a guiding rod 27 installed in the protective box 7. The lifting plate 26 is slidably connected to the guiding rod 27.

[0032] As Figure 4 shown, the driven element includes a first bevel gear 21 installed at the bottom of the lifting cylinder 13. Second bevel gears 22 are installed at the mutually approaching ends of the two hollow rods 16. Both of the two second bevel gears 22 are meshed with the first bevel gear 21. A separation box 39 is installed on the bottom inner wall of the movable cavity 42. Separation holes adapted to the lifting cylinder 13 and the two hollow rods 16 are respectively provided at the top and the outer walls on both sides of the separation box 39.

[0033] In this solution, through the settings of the first bevel gear 21, the second bevel gears 22 and the separation box 39, it is convenient to make the hollow rods 16 rotate while performing circular motion.

[0034] Specifically, by making the hollow rod 16 rotate circumferentially while rotating on its own axis, the air outlet holes 18 can rotate circumferentially while rotating along the hollow rod 16, so that the steam contacts the furfural solution at different horizontal and vertical heights. At the same time, through the setting of the isolation box 39, the first bevel gear 21 and the second bevel gear 22 can be isolated to avoid contact with the steam.

[0035] As Figure 1 shown, a sealing door 8 is hingedly installed on the side of the protective box 7.

[0036] In this solution, through the setting of the sealing door 8, one side of the protective box 7 can be opened, which is convenient for subsequent observation and maintenance of the devices inside the protective box 7.

[0037] As Figure 4 shown, the transmission element includes a first circular gear 28 sleeved on the movable sleeve 10, a second circular gear 29 is sleeved on the movable rod 24, the first circular gear 28 and the second circular gear 29 are meshed with each other, and third circular gears 31 are installed on all three driven rods 30, and all three third circular gears 31 are meshed with the first circular gear 28.

[0038] In this solution, through the setting of the first circular gear 28, the second circular gear 29 and the third circular gear 31, it is convenient to make the movable sleeve 10 and the driven rod 30 rotate.

[0039] Specifically, by the rotation of the movable sleeve 10, the movable column 11 can be rotated, so that the air outlet holes 18 move circumferentially. By the rotation of the driven rod 30, the crushing plate 38 can be rotated to crush the steam bubbles.

[0040] As Figure 4 shown, the diameter of the first circular gear 28 is larger than the diameters of the second circular gear 29 and the third circular gear 31.

[0041] In this solution, through the diameter ratio of the first circular gear 28, the second circular gear 29 and the third circular gear 31, the rotation speed of the movable sleeve 10 can be made less than the rotation speed of the rectangular block 36.

[0042] Specifically, by avoiding the situation that the liquid is violently turbulent due to too fast stirring speed, thus forming a large amount of foam or liquid droplets splashing, and at the same time ensuring the rotation and crushing effect of the crushing plate 38.

[0043] As Figure 5 shown, screen meshes 41 are installed on multiple air outlet holes 18.

[0044] In this solution, through the setting of the screen meshes 41, a certain blocking effect is achieved.

[0045] Specifically, through the blocking of the screen meshes 41, the furfural solution is prevented from entering the movable cylinder 17.

[0046] The method for producing furfuryl alcohol by using a supergravity reactor comprises the following steps: S1, the washed furfural solution is charged into the purification tank 4 through the feed port 6, and the steam is discharged from the vent 18 to contact the furfural solution; S2. When the steam contacts the furfural solution, the aeration assembly is driven to move the air outlet 18 up and down through the hollow rod 16 and the movable cylinder 17, and the hollow rod 16 is rotated at the same time. The rotation of the hollow rod 16 causes the air outlet 18 to move in a circle along the hollow rod 16, thereby making the steam contact the furfural solution at different heights, levels and vertical positions; S3, driving the gas adding assembly to rotate the rectangular block 36, which causes the crushing plate 38 to rotate, thereby cutting the bubbles generated when the steam is added; S4. When the azeotropic mixed gas formed by water vapor and furfural rises above the liquid surface of the solution, it will enter the condenser 3 for condensation, and then output to the transfer tank 2 for sedimentation. After the sedimentation is completed, the furfural is first preheated, and then the purified furfural solution is output to the ultra-gravity reactor body 1 through a plunger pump, and then hydrogen and a catalyst are added, and the high-speed rotor and the copper-based catalyst react efficiently with the hydrogen to prepare furfuryl alcohol.

[0047] The working principle of the device is that before use, the connecting pipe 15 is first connected to the steam generator, and then the washed furfural solution is loaded into the purification tank 4 through the feed port 6. At this time, under the obstruction of the screen 41, the furfural solution cannot flow into the movable cylinder 17 through the air outlet 18. After the furfural is loaded, the steam generator is started, and the output of the steam generator will be transported to the lifting cylinder 13 through the connecting pipe 15, and then the steam is discharged into the movable chamber 42 through the exhaust hole 20 on the lifting cylinder 13, and then the steam in the movable chamber 42 will flow into the hollow rod 16 through the flow hole 19, and at the same time, the steam in the hollow rod 16 will flow into the movable cylinder 17 and spray out from multiple air outlets 18, so that the steam is in contact with the furfural solution.

[0048] When the steam contacts the furfural solution, the motor 23 is started. The motor 23 causes the movable rod 24 to rotate. The rotation of the movable rod 24 causes the reciprocating thread guide sleeve 25 to rotate, thereby causing the lifting plate 26 to move up and down. The up and down movement of the lifting plate 26 causes the moving column 11 to move up and down. The up and down movement of the moving column 11 causes the lifting cylinder 13 and the two hollow rods 16 to move up and down. The up and down movement of the two hollow rods 16 causes the plurality of movable cylinders 17 to move up and down. The up and down movement of the movable cylinders 17 causes the plurality of air outlet holes 18 to move up and down, thereby causing the steam to contact the furfural solution at different heights. At the same time, the rotation of the movable rod 24 causes the second circular gear 29 to rotate. The rotation of the second circular gear 29 causes the first circular gear 28 to rotate. The rotation of the first circular gear 28 causes the movable sleeve 10 to rotate. The rotation of the movable sleeve 10 causes the moving column 11 to rotate through the moving groove and the moving block 12. The rotation of the moving column 11 causes the hollow rod 16 to rotate circumferentially. The circumferential rotation of the hollow rod 16 causes the movable cylinder 17 to move circumferentially. The circumferential movement of the movable cylinder 17 causes the plurality of air outlet holes 18 to move circumferentially, thereby causing the steam to contact the furfural solution at different horizontal positions. When the moving column 11 rotates, the lifting cylinder 13 will be relatively stationary under the action of the third sealing assembly and the movable block 14. At this time, the moving column 11 drives the hollow rod 16 to rotate circumferentially. At the same time, the hollow rod 16 will also rotate itself. The rotation of the hollow rod 16 causes the movable cylinder 17 to rotate. The rotation of the movable cylinder 17 causes the air outlet hole 18 to move circumferentially along the hollow rod 16, thereby causing the steam to contact the furfural solution at different heights, different horizontal and vertical positions, so as to expand the mass transfer area, improve the purification efficiency, and at the same time avoid local overheating leading to furfural decomposition or the formation of dead corners resulting in furfural residue.

[0049] When the moving column 11 moves up and down, it drives the I-shaped ring 32 to move up and down. The up and down movement of the I-shaped ring 32 causes the annular block 33 to move up and down. The up and down movement of the annular block 33 causes the fixing plate 34 to move up and down. The up and down movement of the fixing plate 34 causes the moving rod 35 to move up and down. The up and down movement of the moving rod 35 causes the rectangular block 36 to move up and down. The up and down movement of the rectangular block 36 causes the fixing column 37 to move up and down. The up and down movement of the fixing column 37 causes the crushing plate 38 to move up and down, thereby avoiding affecting the rotation of the movable cylinder 17. At the same time, when the movable rod 24 drives the movable sleeve 10 to rotate through the first circular gear 28 and the second circular gear 29, the rotation of the first circular gear 28 causes the third circular gear 31 to rotate. The rotation of the third circular gear 31 causes the driven rod 30 to rotate. The rotation of the movable rod 24 and the driven rod 30 causes the rectangular block 36 to rotate through the rectangular groove. The rotation of the rectangular block 36 causes the fixing column 37 to rotate. The rotation of the fixing column 37 causes the crushing plate 38 to rotate. The rotation of the crushing plate 38 cuts the bubbles generated when the steam is added, thereby refining the bubble size, increasing the gas-liquid contact area, effectively improving the purification efficiency, and strengthening the separation effect.

[0050] After the azeotropic mixture gas formed by water vapor and furfural rises above the liquid surface of the solution, it will be introduced into the condenser 3 through the outlet pipe 9 with a stable flow field for condensation. After condensation, it is output to the transfer tank 2 for sedimentation. After the sedimentation is completed, the furfural is preheated first, and then the purified furfural solution is output to the supergravity reactor body 1 through a plunger pump. Then, hydrogen and a catalyst are added, and it reacts efficiently with hydrogen under the action of a high-speed rotor and a copper-based catalyst, thereby preparing furfuryl alcohol.

[0051] The above embodiments only represent one or several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An apparatus for producing furfuryl alcohol using a high gravity reactor, comprising a high gravity reactor body (1), characterized in that: On the left side of the hypergravity reactor body (1), there is a transfer tank (2), a condenser (3) and a purification tank (4). Among them, the transfer tank (2), the tube side of the condenser (3) and the purification tank (4) are connected in sequence. A uniform air jetting mechanism is arranged on the purification tank (4). The uniform air jetting mechanism includes two hollow rods (16) and four fixed columns (37) arranged in the purification tank (4). A plurality of connection holes are opened on the side parts of the two hollow rods (16). A plurality of movable cylinders (17) communicated with the connection holes are installed on the outer circumferential walls of the two hollow rods (16). A plurality of air outlet holes (18) are opened on the outer walls of the plurality of movable cylinders (17). A plurality of crushing plates (38) are installed at the bottoms of the four fixed columns (37). A driving and gas adding component is arranged on the purification tank (4) to make the two hollow rods (16) and the four fixed columns (37) move and rotate simultaneously.

2. The device for producing furfuryl alcohol by using a high gravity reactor according to claim 1, characterized in that, The driving and gas adding component includes a movable sleeve (10) rotatably installed on the top of the purification tank (4). A lifting plate (26) is arranged above the purification tank (4). A movable column (11) is rotatably installed on the lifting plate (26). The lower part of the movable column (11) passes through the movable sleeve (10) and extends into the purification tank (4). The two hollow rods (16) are rotatably connected to the movable column (11). A movable block (12) is installed on one side of the upper part of the movable column (11). A movable groove adapted to the movable block (12) is opened on the inner wall of the movable sleeve (10). A lifting cylinder (13) is rotatably installed on the top of the movable column (11). A movable block (14) is installed on one side of the lifting cylinder (13). A connecting pipe (15) is connected to the top of the lifting cylinder (13). An activity cavity (42) is opened on the movable column (11). Exhaust holes (20) and flow holes (19) communicated with the activity cavity (42) are respectively opened on the outer circumferential walls of the lifting cylinder (13) and the two hollow rods (16). An I-shaped ring (32) is sleeved on the movable column (11). An annular block (33) is rotatably sleeved on the I-shaped ring (32). Four fixing plates (34) are installed on the outer circumferential wall of the annular block (33). A movable rod (35) is rotatably installed on each of the four fixing plates (34). A rectangular block (36) is fixedly installed on each of the four movable rods (35). The four fixed columns (37) are respectively installed at the bottoms of the four rectangular blocks (36). A driving unit is arranged on the purification tank (4) to make the movable sleeve (10), the two hollow rods (16), the four rectangular blocks (36) rotate and the lifting plate (26) move up and down.

3. The device for producing furfuryl alcohol using a high gravity reactor according to claim 2, characterized in that, The driving unit includes a protective box (7) installed on the top of the purification tank (4). An avoidance hole adapted to the lifting cylinder (13) and the movable block (14) is provided at the top of the protective box (7). A driven element for rotating the two hollow rods (16) is provided on the lifting cylinder (13). A motor (23) is installed on the top of the protective box (7). A movable rod (24) and a driven rod (30) are rotatably installed on the top of the purification tank (4). The top end of the movable rod (24) extends outside the protective box (7) and is fixedly connected to the output shaft of the motor (23). A reciprocating thread guide sleeve (25) is sleeved on the movable rod (24). The lifting plate (26) is threadedly connected to the reciprocating thread guide sleeve (25). A guiding element adapted to the lifting plate (26) is provided on the protective box (7). The bottom ends of the movable rod (24) and the three driven rods (30) are respectively fixedly connected to corresponding rectangular blocks (36). The movable rod (24) is connected to the movable sleeve (10) and the three driven rods (30) through a transmission element.

4. The device for producing furfuryl alcohol using a high gravity reactor according to claim 3, characterized in that, The guiding element includes a guiding rod (27) installed inside the protective box (7). The lifting plate (26) is slidably connected to the guiding rod (27).

5. The device for producing furfuryl alcohol using a high gravity reactor according to claim 3, characterized in that, The driven element includes a first bevel gear (21) installed at the bottom of the lifting cylinder (13). Second bevel gears (22) are installed at the ends of the two hollow rods (16) close to each other. The two second bevel gears (22) are both meshed with the first bevel gear (21).

6. The device for producing furfuryl alcohol using a high gravity reactor according to claim 3, characterized in that, A sealing door (8) is hingedly installed on the side of the protective box (7).

7. The device for producing furfuryl alcohol using a high gravity reactor according to claim 3, characterized in that, The transmission element includes a first circular gear (28) sleeved on the movable sleeve (10). A second circular gear (29) is sleeved on the movable rod (24). The first circular gear (28) and the second circular gear (29) are meshed with each other. Third circular gears (31) are installed at the tops of the three driven rods (30). The three third circular gears (31) are all meshed with the first circular gear (28).

8. The device for producing furfuryl alcohol by using a high gravity reactor according to claim 7, characterized in that, The diameter of the first circular gear (28) is larger than the diameters of the second circular gear (29) and the third circular gear (31).

9. The apparatus for producing furfuryl alcohol using a high gravity reactor according to claim 1, characterized in that, Sieves (41) are installed in a plurality of the air outlet holes (18).

10. A production method of the device for producing furfuryl alcohol by using a high-gravity reactor according to any one of claims 1-9, characterized in that, It includes the following steps: S1. Load the washed furfural solution into the purification tank (4) through the feed inlet (6), and make the steam discharged from the air outlet holes (18) contact the furfural solution. S2. When the steam contacts the furfural solution, drive the gas adding assembly to move the air outlet holes (18) up and down through the hollow rods (16) and the movable cylinder (17). At the same time, the hollow rods (16) will rotate, and the rotation of the hollow rods (16) will make the air outlet holes (18) perform a circular motion along the hollow rods (16), so that the steam contacts the furfural solution at different heights, different horizontal and vertical positions. S3. Drive the gas adding assembly to rotate the rectangular block (36), and the rectangular block (36) will make the crushing plate (38) rotate, so as to cut the bubbles generated when adding steam. S4. After the azeotropic mixture gas formed by water vapor and furfural rises above the liquid surface of the solution, it will enter the condenser (3) for condensation. After condensation, it is output to the transfer tank (2) for sedimentation. After the sedimentation is completed, the furfural is preheated first, and then the purified furfural solution is output to the inside of the high gravity reactor body (1) through a plunger pump. Then, hydrogen and a catalyst are added, and it reacts efficiently with hydrogen under the action of a high-speed rotor and a copper-based catalyst, so as to prepare furfuryl alcohol.

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