CN113230983A - Intelligent high-pressure reaction kettle for preparing furfuryl alcohol and furfuryl alcohol preparation method - Google Patents
Intelligent high-pressure reaction kettle for preparing furfuryl alcohol and furfuryl alcohol preparation method Download PDFInfo
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- CN113230983A CN113230983A CN202110554031.1A CN202110554031A CN113230983A CN 113230983 A CN113230983 A CN 113230983A CN 202110554031 A CN202110554031 A CN 202110554031A CN 113230983 A CN113230983 A CN 113230983A
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- Prior art keywords
- gear
- rack
- filter plate
- furfuryl alcohol
- working
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- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 title claims abstract description 258
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000011949 solid catalyst Substances 0.000 claims abstract description 36
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 32
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 32
- 229910052739 hydrogen Inorganic materials 0.000 claims description 32
- 239000001257 hydrogen Substances 0.000 claims description 32
- 238000005984 hydrogenation reaction Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 22
- 238000002156 mixing Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/42—Singly bound oxygen atoms
- C07D307/44—Furfuryl alcohol
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Abstract
The invention relates to the field of furfuryl alcohol preparation, and particularly relates to an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a furfuryl alcohol preparation method. The intelligent high-pressure reaction kettle for preparing the furfuryl alcohol comprises a filtering part, wherein the filtering part is used for filtering out a solid catalyst and comprises a rack, a plurality of filtering plates, duplicate gears and a driving device, the filtering plates are arranged in a left-right overlapping mode, an incomplete gear with teeth distributed in a semicircular mode on the right side is arranged on the upper portion of the front side of each filtering plate, and a friction column is arranged at the tail end of the tooth on the lowest side of the incomplete gear; the duplex gear comprises a working gear, the working gear rotates and moves leftwards under the driving of the driving device, and when the working gear is meshed with teeth on an incomplete gear on the filter plate, the filter plate swings upwards and rightwards around the working gear; the teeth of the working gear are provided with friction surfaces, and after the friction column is inserted into a corresponding tooth socket, the friction column is contacted with the friction surfaces on the two corresponding teeth, so that the filter plate is stably dropped to the frame when the working gear drives the filter plate to move rightwards and downwards.
Description
Technical Field
The invention relates to the field of furfuryl alcohol preparation, and particularly relates to an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a furfuryl alcohol preparation method.
Background
In the prior art, the furfuryl alcohol production adopts batch still type production or fluidized bed reaction tube type production, the existing furfuryl alcohol preparation equipment comprises a reaction part and a filtering part, the reaction part is used for adding furfural solution and solid catalyst and introducing hydrogen to generate furfuryl alcohol, the solid catalyst does not participate in the reaction and can be remained in the generated furfuryl alcohol solution, and further filtering is needed to obtain pure furfuryl alcohol solution through the filtering part, in order to improve the filtering efficiency, the filtering part adopts a filter pressing device comprising a plurality of filter plates, the filter plates are sequentially pulled open after the filtering is finished, but when the filter plates are pulled open and stacked on the other side, a certain gap exists between the filter plates due to vibration generated by movement and collision of the filter plates, and along with the increase of the number of the pull plates, the more the gaps are accumulated, in order to ensure that the filter cakes can also fall off when the pull plates are pulled finally, each filter plate needs to move to a larger displacement, so that the movement stroke of the filter plates is large, and thus the working efficiency of the filtering part is low, and therefore, there is a need for a furfuryl alcohol production apparatus having a filtering part that can filter smoothly and efficiently.
Disclosure of Invention
The invention provides an intelligent high-pressure reaction kettle for preparing furfuryl alcohol and a furfuryl alcohol preparation method, and aims to solve the problem that the filter part of the existing furfuryl alcohol preparation equipment is low in working efficiency.
The invention relates to an intelligent high-pressure reaction kettle for preparing furfuryl alcohol and a furfuryl alcohol preparation method, which adopt the following technical scheme:
an intelligent high-pressure reaction kettle for preparing furfuryl alcohol comprises a reaction part and a filtering part, wherein the reaction part is used for adding furfural and a solid catalyst to react to obtain a solid-liquid mixture of a furfuryl alcohol solution and the solid catalyst, the filtering part is used for receiving the solid-liquid mixture and filtering the solid catalyst, the filtering part comprises a rack, a plurality of filtering plates, a duplicate gear and a driving device, the filtering plates are stacked and arranged along the left and right direction, the middle part of each filtering plate can be placed on the rack in a left and right sliding mode, an incomplete gear is arranged on the upper part of the front side of each filtering plate, the incomplete gear is a gear with teeth distributed in a semicircular mode on the right side, and a friction column is arranged at; the rack is provided with a working rack extending along the left-right direction, the working rack is positioned at the front side of the filter plate, and the distribution length of teeth on the working rack is greater than that of the filter plate; the duplex gear is rotatably and slidably arranged on the rack back and forth and comprises a working gear and a driving gear, the driving gear is meshed with the working rack so as to move from right to left along the working rack when driven by the driving device to rotate, the working gear is firstly meshed with teeth on an incomplete gear on the filter plate when rotating and moving left, so that the filter plate swings upwards and rightwards around the working gear, and the lower part of the filter plate rotates rightwards around the center of the incomplete gear and is opened with an adjacent filter plate on the left side; the teeth of the working gear are provided with friction surfaces, and after the friction column is inserted into a corresponding tooth socket, the friction column is contacted with the friction surfaces on the two corresponding teeth, so that when the working gear drives the filter plate to move rightwards and downwards, the friction column is prevented from being separated from the tooth socket.
Optionally, each filter plate is further provided with a pre-tightening rack, and the pre-tightening rack extends in the left-right direction to be meshed with the working gear when/after the working gear moves leftwards and is disengaged from the incomplete gear on the filter plate, so that the working gear continuously pushes the filter plate to move rightwards through the pre-tightening rack.
Optionally, the rack is further provided with a reset rack extending along the left-right direction, the reset rack is positioned below the front side of the working rack, and the distribution length of the reset rack is greater than that of the filter plate; an upper inclined boss is arranged on the lower side face of the left end of the working rack, so that when the driving gear moves to the right end of the working rack along the working rack, the driving gear is guided to move forwards to be disengaged from the working rack and then is engaged with the reset rack, the driving gear is driven by the driving device to reset from left to right along the reset rack, and the working gear is driven to move forwards so that the working gear cannot be engaged with an incomplete gear in the resetting process; the upper side face of the right end of the reset rack is provided with a downward inclined boss so as to guide the drive gear to move backwards and be meshed with the working rack after being disengaged with the reset rack when the drive gear moves rightwards along the reset rack to the right end of the reset rack, thereby enabling the duplicate gear to return to the initial position.
Optionally, the frame is further provided with two filter plate rails extending in the left-right direction, the filter plate rails are provided with guide wheel grooves extending in the left-right direction, bosses are arranged in the middle of the front side and the rear side of the filter plate, two rotatable guide wheels are arranged on the lower side of each boss, and the guide wheels are placed in the guide wheel grooves so that the filter plate can slide left and right along the guide wheel grooves.
Optionally, a motor track extending in the left-right direction is further arranged on the rack, the driving device is a motor, the motor is mounted on the motor track in a left-right sliding manner, a spline is arranged at the front end of the duplicate gear, a spline connector is arranged on an output shaft of the motor, and the spline is mounted on the spline connector in a front-back sliding manner and in synchronous rotation manner.
Optionally, the reset rack, the working rack, the driving device, the duplicate gear, the pre-tightening rack and the incomplete gear form a group of push plate assemblies together, and the two groups of push plate assemblies are symmetrically arranged on the front side and the rear side of the filter plate.
Optionally, the filter part further comprises a hydraulic press, a hydraulic back plate and a feeding back plate, the feeding back plate is fixed to the frame and is located on the left side of the plurality of filter plates, the hydraulic back plate is slidably mounted on the frame left and right and is located on the right side of the plurality of filter plates, and the filter plates are pressed tightly under the driving of the hydraulic press; the center of each filter plate is provided with a filter plate communicating hole, and the center of the feeding back plate is provided with a feeding hole communicated with the filter plate communicating hole.
Optionally, the reaction part comprises a reaction chamber, a hydrogenation reaction pipe, a hydrogen return tank and a mixing tank, the reaction chamber is used for mixing furfural and a solid catalyst, the mixed solid-liquid mixture is conveyed to the hydrogenation reaction pipe, high-pressure hydrogen is introduced into the hydrogenation reaction pipe to react with furfural and the solid catalyst to generate a furfuryl alcohol solution, redundant unreacted hydrogen returns to the hydrogenation reaction pipe through the hydrogen return tank, the furfuryl alcohol solution and redundant solid catalyst are conveyed to the mixing tank through the hydrogen return tank, and the solid-liquid mixture in the mixing tank is pumped into a plurality of filter plates from a feed port through a water pump for solid-liquid separation.
A furfuryl alcohol preparation method, which utilizes the furfuryl alcohol to prepare an intelligent high-pressure reaction kettle, comprises the following steps:
(1) adding a furfural solution and a solid catalyst into a reaction chamber;
(2) conveying the mixed furfural solution and solid catalyst to a hydrogenation reaction tube, and introducing high-pressure hydrogen into the hydrogenation reaction tube to obtain a furfuryl alcohol solution;
(3) the solid-liquid mixture of the furfuryl alcohol solution and the solid catalyst is conveyed to a mixing tank through a hydrogen return tank, and the hydrogen return tank collects redundant hydrogen and conveys the redundant hydrogen to a hydrogenation reaction pipe;
(4) the water pump pumps the solid-liquid mixture in the mixing tank into the filtering part to filter the furfuryl alcohol solution.
(5) After the preset time, the water pump is closed, and the motor is started to enable the duplicate gear to move and open the filter plate so that the solid catalyst falls.
The invention has the beneficial effects that: the filter plate of the filter part of the intelligent high-pressure reaction kettle for preparing furfuryl alcohol is inclined and opened under the meshing transmission of the working gear and the incomplete gear, so that a filter cake can fall off conveniently, and when the working gear is meshed with the friction column of the incomplete gear, the friction column is always contacted with the tooth flank of the working gear until the filter plate falls on the rack stably, so that the pushing error of the filter plate is reduced, the moving displacement of the filter plate is further shortened, the efficiency of a pushing plate is improved, and the working efficiency of the filter part is further improved.
Furthermore, the working gear is meshed with the pre-tightening rack after being disengaged from the incomplete gear, the filter plate is further pushed to move rightwards to be attached to the filter plate on the right side, the gap between the filter plate and the adjacent filter plate on the right side is reduced, and the pushing error of the filter plate is further reduced;
furthermore, the filter plates are opened one by one rightwards in the process that the duplicate gear moves from right to left without frequent reversing of a motor, and the duplicate gear is disengaged from the working rack and the reset rack when moving to the left end, so that the duplicate gear can move and reset from left to right without changing the steering direction of the motor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of an embodiment of an intelligent high-pressure reaction kettle for preparing furfuryl alcohol and a method for preparing furfuryl alcohol according to the invention;
FIG. 2 is a schematic diagram of the structure of a filter part in an embodiment of the intelligent high-pressure reaction kettle for preparing furfuryl alcohol and the method for preparing furfuryl alcohol of the invention;
FIG. 3 is an enlarged view of the point A in FIG. 2;
FIG. 4 is a front view of a filter part structure in an embodiment of the intelligent high-pressure reaction kettle for furfuryl alcohol preparation and the method for furfuryl alcohol preparation of the present invention;
FIG. 5 is a top view of a filter part structure in an embodiment of the intelligent high-pressure reaction kettle for furfuryl alcohol preparation and the method for furfuryl alcohol preparation of the present invention;
FIG. 6 is a sectional view taken along line B-B of FIG. 5;
FIG. 7 is a side view of a filter plate structure in an embodiment of an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a method for furfuryl alcohol preparation of the present invention;
FIG. 8 is an enlarged view of FIG. 7 at C;
FIG. 9 is a schematic view of an inclined boss in an embodiment of an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a method for furfuryl alcohol preparation of the present invention;
FIG. 10 is a schematic view of an upper inclined boss in an embodiment of an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a method for furfuryl alcohol preparation of the present invention;
FIG. 11 is a schematic structural view of a duplicate gear in an embodiment of an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a method for furfuryl alcohol preparation of the present invention;
FIG. 12 is an enlarged view of FIG. 11 at D;
FIG. 13 is a schematic view of the installation of a pre-tightening rack and an incomplete gear in an embodiment of the furfuryl alcohol preparation intelligent high-pressure reaction kettle and the furfuryl alcohol preparation method of the invention;
FIG. 14 is a schematic view showing the working gear and the incomplete gear entering into a meshing state in the embodiment of the intelligent high-pressure reaction kettle for furfuryl alcohol preparation and the method for preparing furfuryl alcohol of the invention;
FIG. 15 is a schematic diagram showing the meshing state of friction columns of a working gear and an incomplete gear in an embodiment of an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a method for furfuryl alcohol preparation of the present invention;
FIG. 16 is another schematic view of the friction column meshing state of the working gear and the incomplete gear in the embodiment of the intelligent high-pressure reaction kettle for furfuryl alcohol preparation and the method for preparing furfuryl alcohol of the invention;
FIG. 17 is a schematic view showing the meshing state of a working gear and a pre-tightening rack in an embodiment of an intelligent high-pressure reaction kettle for furfuryl alcohol preparation and a method for furfuryl alcohol preparation of the present invention;
in the figure: 1. a frame; 2. filtering the plate; 201. the filter plate is communicated with the hole; 3. a motor; 4. a motor track; 501. resetting the rack; 502. a working rack; 6. a filter plate rail; 7. a hydraulic press; 801. a hydraulic backing plate; 802. a feed back plate; 9. a duplicate gear; 901. a working gear; 902. a drive gear; 903. a spline; 904. a friction surface; 1001. pre-tightening the rack; 1002. an incomplete gear; 1003. a friction column; 11. a feed port; 12. a boss; 1201. a guide wheel; 13. a spline connector; 14. a downward inclined boss; 1401. an upper inclined boss; 15. a reaction chamber; 16. a hydrogenation reaction tube; 17. a hydrogen return tank; 18. a mixing tank; 19. and (4) a water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the intelligent high-pressure reaction kettle for preparing furfuryl alcohol and the method for preparing furfuryl alcohol, as shown in figures 1 to 17, comprises a reaction part and a filtering part,
the reaction part is used for adding furfural and a solid catalyst to react to obtain a solid-liquid mixture of a furfuryl alcohol solution and the solid catalyst,
the filtering part receives the solid-liquid mixture and filters out the solid catalyst, and comprises a frame 1, a filter plate 2, a duplicate gear 9 and a driving device,
the filter plates 2 are arranged in a left-right overlapping mode, the middle of each filter plate 2 can be placed on the rack 1 in a left-right sliding mode, an incomplete gear 1002 is arranged on the upper portion of the front side of each filter plate 2, the incomplete gear 1002 is a gear with teeth distributed in a semicircular mode on the right side, and a friction column 1003 is arranged at the tail end of the teeth on the lowest side of the incomplete gear 1002;
the rack 1 is provided with a working rack 502 extending along the left-right direction, the working rack 502 is positioned at the front side of the filter plate 2, and the distribution length of the teeth on the working rack 502 is greater than that of the filter plate 2;
the duplicate gear 9 is rotatably and slidably installed in the machine frame 1 back and forth, and includes a working gear 901 and a driving gear 902, and the driving gear 902 is engaged with the working rack 502 to move from right to left along the working rack 502 when rotated by the driving device; when the working gear 901 rotates and moves leftwards, the working gear 901 is firstly meshed with teeth on the incomplete gear 1002 on the filter plate 2, so that the filter plate 2 swings upwards and rightwards around the working gear 901, and the lower part of the filter plate 2 rotates rightwards around the center of the incomplete gear 1002 and is opened with the adjacent filter plate 2 on the left side; the teeth of the working gear 901 are provided with friction surfaces 904, and after the friction column 1003 is inserted into a corresponding tooth socket, the friction column 1003 is contacted with the friction surfaces 904 on the two corresponding teeth, so that when the working gear 901 drives the filter plate 2 to move rightwards and downwards, the friction column 1003 is prevented from being separated from the tooth socket. Because the friction column 1003 is similar to the hinge joint with the teeth of the working gear 901, the filter plate 2 can keep a vertical state in the downward swinging process, and the filter plate 2 can stably fall on the frame without excessive shaking caused by the rotation of the working gear 901, so that the filter plate 2 can stably fall on the frame 1, and the pushing error of each filter plate 2 is reduced.
In this embodiment, each filter plate 2 is further provided with a pre-tightening rack 1001, the pre-tightening rack 1001 extends in the left-right direction, and the upper end of the incomplete gear 1002 is fixed to the right end of the pre-tightening rack 1001 so as to engage with the working gear 901 when/after the working gear 901 moves to the left and disengages from the incomplete gear 1002 on the filter plate 2, so that the working gear 901 continues to push the filter plate 2 to move to the right through the pre-tightening rack 1001, so that the filter plate 2 abuts against the right filter plate 2 to the right, thereby reducing the movement error of the filter plate 2.
In this embodiment, the frame 1 is further provided with a reset rack 501 extending in the left-right direction, the reset rack 501 is located below the front side of the working rack 502, and the distribution length of the reset rack 501 is greater than that of the filter plates 2; an upper inclined boss 1401 is arranged on the lower side surface of the left end of the working rack 502, so that when the driving gear 902 moves to the right end of the working rack 502 along the working rack 502, the driving gear 902 is guided to move forwards to be disengaged from the working rack 502 and then to be engaged with the reset rack 501, the driving gear 902 is driven by the driving device to reset from left to right along the reset rack 501, and the working gear 901 is driven to move forwards, so that the working gear 901 cannot be engaged with the incomplete gear 1002 in the resetting process; the upper side of the right end of the reset rack 501 is provided with a downward inclined boss 14 to guide the drive gear 902 to move backward to be disengaged from the reset rack 501 and then to be engaged with the working rack 502 when the drive gear 902 moves rightward along the reset rack 501 to the right end of the reset rack 501, so that the dual gear 9 returns to the initial position.
In this embodiment, the frame 1 is further provided with two filter plate rails 6 extending in the left-right direction, the filter plate rails 6 are provided with guide wheel grooves extending in the left-right direction, the middle portions of the front and rear sides of the filter plate 2 are provided with bosses 12, the lower side of each boss 12 is provided with two rotatable guide wheels 1201, and the guide wheels 1201 are placed in the guide wheel grooves so that the filter plate 2 can slide left and right along the guide wheel grooves.
In this embodiment, the frame 1 is further provided with a motor track 4 extending in the left-right direction, the driving device is a motor 3, the motor 3 is mounted on the motor track 4 in a left-right sliding manner, the front end of the duplicate gear 9 is provided with a spline 903, an output shaft of the motor 3 is provided with a spline connector 13, and the spline 903 is mounted on the spline connector 13 in a front-back sliding manner and in a synchronous rotation manner.
In this embodiment, the reset rack 501, the working rack 502, the driving device, the duplicate gear 9, the pre-tightening rack 1001 and the incomplete gear 1002 together form a set of push plate assemblies, and the push plate assemblies are provided in two sets and symmetrically arranged on the front and rear sides of the filter plate 2.
In this embodiment, the filter part further includes a hydraulic press 7, a hydraulic back plate 801, and a feeding back plate 802, the feeding back plate 802 is fixed to the frame 1 and is located on the left side of the plurality of filter plates 2, the hydraulic back plate 801 is slidably installed on the frame 1 and is located on the right side of the plurality of filter plates 2, and the filter plates 2 are pressed by the driving of the hydraulic press 7; the center of each filter plate 2 is provided with a filter plate communication hole 201, and the center of the feeding back plate 802 is provided with a feeding hole 11 communicated with the filter plate communication hole 201.
In this embodiment, the reaction section includes a reaction chamber 15, a hydrogenation reaction tube 16, a hydrogen return tank 17, and a mixing tank 18, the reaction chamber 15 is used for mixing furfural and a solid catalyst, and the mixed solid-liquid mixture is conveyed to the hydrogenation reaction tube 16, high-pressure hydrogen is introduced into the hydrogenation reaction tube 16 to react with furfural and the solid catalyst to generate furfuryl alcohol solution, excess unreacted hydrogen is returned to the hydrogenation reaction tube 16 through the hydrogen return tank 17, the furfuryl alcohol solution and the solid catalyst are conveyed to the mixing tank 18 through the hydrogen return tank 17, and the solid-liquid mixture in the mixing tank 18 is pumped into the space between the plurality of filter plates 2 from the feed port 11 through a water pump 19 for solid-liquid separation.
When the device is used, the hydraulic press 7 pushes the hydraulic back plate 801 to push the filter plates 2, so that the plurality of filter plates 2 are pressed between the hydraulic back plate 801 and the feeding back plate 802, the water pump 19 pumps a solid-liquid mixture of a furfuryl alcohol solution and a solid catalyst in the mixing tank 18 into the plurality of filter plates 2 from the feeding hole 11, the furfuryl alcohol solution flows out from gaps between the filter plates 2, the solid catalyst is compressed between the filter plates 2, after the filtration is completed, the hydraulic press 7 pulls the hydraulic back plate 801 rightwards, the motor 3 is started, the motor 3 drives the duplicate gear 9 to rotate, the driving gear 902 moves leftwards under the meshing transmission of the working rack 502, the working gear 901 rotates and moves leftwards when moving leftwards, the working gear 901 is meshed with the incomplete gear 1002 on the filter plates 2, so that the filter plates 2 swing upwards and rightwards around the working gear 901 under the rotation transmission of the working gear 901 and pulls the gaps away from the adjacent filter plates 2 on the left side by preset, until the incomplete gear 1002 on the filter plates 2 is disengaged, the working gear 901 is meshed with a pre-tightening rack 1001 on the filter plate 2, so that the pre-tightening rack 1001 drives the filter plate 2 to move further to the right under the rotation transmission of the working gear 901; as the working gear 901 continues to rotate and move leftwards, the working gear 901 is meshed with the incomplete gear 1002 on the next filter plate 2 and pushes the next filter plate 2 to move rightwards until all the filter plates 2 are sequentially pushed to the right, and the solid catalyst between the adjacent filter plates 2 falls; until the driving gear 902 rotates and moves to the leftmost end of the working rack 502, the driving gear 902 moves forward under the guidance of the inclined boss 1401 on the left end of the working rack 502, and enters into engagement with the reset rack 501 after disengaging from the working rack 502, and drives the working gear 901 to move forward, the rear driving gear 902 moves rightward under the engagement transmission with the reset rack 501, and the working gear 901 does not engage with the incomplete gear 1002 on the filter plate 2 all the time in the rightward movement process, until the driving gear 902 moves rightward to the right end of the reset rack 501, the driving gear 902 moves backward under the guidance of the inclined boss 14 on the right end of the reset rack 501, and engages with the working rack 502 after disengaging from the reset rack 501, the motor 3 is turned off, the hydraulic machine 7 pushes the hydraulic back plate 801 and the filter plate 2 leftward, and presses the filter plate 2 between the hydraulic back plate 801 and the feeding back plate 802 again, for the next filtration.
A furfuryl alcohol preparation method, which utilizes the furfuryl alcohol to prepare an intelligent high-pressure reaction kettle, comprises the following steps:
(1) adding a furfural solution and a solid catalyst into the reaction chamber 15;
(2) the mixed furfural solution and the solid catalyst are conveyed to a hydrogenation reaction tube 16, and high-pressure hydrogen is introduced into the hydrogenation reaction tube 16 to obtain a furfuryl alcohol solution;
(3) the solid-liquid mixture of the furfuryl alcohol solution and the solid catalyst is conveyed to a mixing tank 18 through a hydrogen return tank 17, and the hydrogen return tank 17 collects redundant hydrogen and conveys the redundant hydrogen to a hydrogenation reaction pipe 16;
(4) the water pump 19 pumps the solid-liquid mixture in the mixing tank 18 into the filtering section to filter the furfuryl alcohol solution.
(5) After the preset time, the water pump 19 is closed, the motor 3 is started to move the duplicate gear 9 to open the filter plate 2, and the solid catalyst falls.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a furfuryl alcohol preparation intelligence high pressure batch autoclave, includes reaction portion, filter house, and the reaction portion is used for adding furfural and solid catalyst in order to react the solid-liquid mixture who obtains furfuryl alcohol solution and solid catalyst, and the solid-liquid mixture is received and solid catalyst is filtered out to the filter house, its characterized in that: the filter part comprises a frame, filter plates, duplicate gears and a driving device, wherein a plurality of filter plates are stacked and arranged along the left-right direction, the middle part of each filter plate can be placed on the frame in a left-right sliding manner, the upper part of the front side of each filter plate is provided with an incomplete gear, the incomplete gear is a gear with teeth distributed in a semicircular way on the right side, and the tail end of the tooth at the lowest side of the incomplete gear is provided with a friction column; the rack is provided with a working rack extending along the left-right direction, the working rack is positioned at the front side of the filter plate, and the distribution length of teeth on the working rack is greater than that of the filter plate; the duplex gear is rotatably and slidably arranged on the rack back and forth and comprises a working gear and a driving gear, the driving gear is meshed with the working rack so as to move from right to left along the working rack when driven by the driving device to rotate, the working gear is firstly meshed with teeth on an incomplete gear on the filter plate when rotating and moving left, so that the filter plate swings upwards and rightwards around the working gear, and the lower part of the filter plate rotates rightwards around the center of the incomplete gear and is opened with an adjacent filter plate on the left side; the teeth of the working gear are provided with friction surfaces, and after the friction column is inserted into a corresponding tooth socket, the friction column is contacted with the friction surfaces on the two corresponding teeth, so that when the working gear drives the filter plate to move rightwards and downwards, the friction column is prevented from being separated from the tooth socket.
2. The intelligent high-pressure reaction kettle for preparing furfuryl alcohol as set forth in claim 1, wherein: each filter plate is also provided with a pre-tightening rack which extends along the left and right directions and is meshed with the working gear when/after the working gear moves leftwards and is disengaged from the incomplete gear on the filter plate, so that the working gear continuously pushes the filter plate to move rightwards through the pre-tightening rack.
3. The intelligent high-pressure reaction kettle for preparing furfuryl alcohol as set forth in claim 2, wherein: the rack is also provided with a reset rack extending along the left-right direction, the reset rack is positioned below the front side of the working rack, and the distribution length of the reset rack is greater than that of the filter plate; an upper inclined boss is arranged on the lower side face of the left end of the working rack, so that when the driving gear moves to the right end of the working rack along the working rack, the driving gear is guided to move forwards to be disengaged from the working rack and then is engaged with the reset rack, the driving gear is driven by the driving device to reset from left to right along the reset rack, and the working gear is driven to move forwards so that the working gear cannot be engaged with an incomplete gear in the resetting process; the upper side face of the right end of the reset rack is provided with a downward inclined boss so as to guide the drive gear to move backwards and be meshed with the working rack after being disengaged with the reset rack when the drive gear moves rightwards along the reset rack to the right end of the reset rack, thereby enabling the duplicate gear to return to the initial position.
4. The intelligent high-pressure reaction kettle for preparing furfuryl alcohol as set forth in claim 1, wherein: the frame is also provided with two filter plate rails extending along the left-right direction, the filter plate rails are provided with guide wheel grooves extending along the left-right direction, the middle parts of the front side and the rear side of the filter plate are respectively provided with a boss, the lower side of each boss is provided with two rotatable guide wheels, and the guide wheels are placed in the guide wheel grooves, so that the filter plate can slide left and right along the guide wheel grooves.
5. The intelligent high-pressure reaction kettle for preparing furfuryl alcohol as set forth in claim 1, wherein: the rack is also provided with a motor track extending along the left-right direction, the driving device is a motor, the motor can be arranged on the motor track in a left-right sliding manner, the front end of the duplicate gear is provided with a spline, an output shaft of the motor is provided with a spline connector, and the spline can be arranged on the spline connector in a front-back sliding manner and in synchronous rotation manner.
6. The intelligent high-pressure reaction kettle for preparing furfuryl alcohol as set forth in claim 3, wherein: the reset rack, the working rack, the driving device, the duplicate gear, the pre-tightening rack and the incomplete gear form a group of push plate assemblies together, and the push plate assemblies are arranged in two groups and symmetrically arranged on the front side and the rear side of the filter plate.
7. The intelligent high-pressure reaction kettle for preparing furfuryl alcohol as set forth in claim 1, wherein: the filter part also comprises a hydraulic press, a hydraulic back plate and a feeding back plate, the feeding back plate is fixed on the frame and is positioned on the left side of the plurality of filter plates, the hydraulic back plate is arranged on the frame in a left-right sliding manner and is positioned on the right side of the plurality of filter plates, and the filter plates are pressed tightly under the driving of the hydraulic press;
the center of each filter plate is provided with a filter plate communicating hole, and the center of the feeding back plate is provided with a feeding hole communicated with the filter plate communicating hole.
8. The intelligent high-pressure reaction kettle for preparing furfuryl alcohol as set forth in claim 7, wherein: the reaction part comprises a reaction chamber, a hydrogenation reaction pipe, a hydrogen return tank and a mixing tank, wherein the reaction chamber is used for mixing furfural and a solid catalyst, the mixed solid-liquid mixture is conveyed to the hydrogenation reaction pipe, high-pressure hydrogen is introduced into the hydrogenation reaction pipe to react with the furfural and the solid catalyst to generate a furfuryl alcohol solution, redundant unreacted hydrogen returns to the hydrogenation reaction pipe through the hydrogen return tank, the furfuryl alcohol solution and redundant solid catalyst are conveyed to the mixing tank through the hydrogen return tank, and the solid-liquid mixture in the mixing tank is pumped into a plurality of filter plates from a feed port through a water pump for solid-liquid separation.
9. A furfuryl alcohol production method using the intelligent high-pressure reaction kettle for furfuryl alcohol production of any one of claims 1 to 8, comprising:
(1) adding a furfural solution and a solid catalyst into a reaction chamber;
(2) conveying the mixed furfural solution and solid catalyst to a hydrogenation reaction tube, and introducing high-pressure hydrogen into the hydrogenation reaction tube to obtain a furfuryl alcohol solution;
(3) the solid-liquid mixture of the furfuryl alcohol solution and the solid catalyst is conveyed to a mixing tank through a hydrogen return tank, and the hydrogen return tank collects redundant hydrogen and conveys the redundant hydrogen to a hydrogenation reaction pipe;
(4) the water pump pumps the solid-liquid mixture in the mixing tank into the filtering part to filter the furfuryl alcohol solution.
(5) After the preset time, the water pump is closed, and the motor is started to enable the duplicate gear to move and open the filter plate so that the solid catalyst falls.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110554031.1A CN113230983B (en) | 2021-05-20 | 2021-05-20 | Intelligent high-pressure reaction kettle for preparing furfuryl alcohol and furfuryl alcohol preparation method |
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| CN202110554031.1A CN113230983B (en) | 2021-05-20 | 2021-05-20 | Intelligent high-pressure reaction kettle for preparing furfuryl alcohol and furfuryl alcohol preparation method |
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| CN113230983B CN113230983B (en) | 2022-07-05 |
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| CN116351585A (en) * | 2023-02-01 | 2023-06-30 | 山东一诺生物质材料有限公司 | Centrifuge for separating furfuryl alcohol and dead catalyst in furfuryl alcohol production |
| CN116510383A (en) * | 2023-05-05 | 2023-08-01 | 广州极效能源科技有限公司 | Circulating oil filtering equipment with filtering medium and automatic cleaning function |
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| GB1086278A (en) * | 1965-01-26 | 1967-10-04 | Choquenet Fond Atel | Improved mechanical unstacking apparatus for plate type filter presses |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116351585A (en) * | 2023-02-01 | 2023-06-30 | 山东一诺生物质材料有限公司 | Centrifuge for separating furfuryl alcohol and dead catalyst in furfuryl alcohol production |
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| CN116510383A (en) * | 2023-05-05 | 2023-08-01 | 广州极效能源科技有限公司 | Circulating oil filtering equipment with filtering medium and automatic cleaning function |
| CN116510383B (en) * | 2023-05-05 | 2023-09-26 | 广州极效能源科技有限公司 | Circulating oil filtering equipment with filtering medium and automatic cleaning function |
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| CN113230983B (en) | 2022-07-05 |
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