CN116764546A - Esterification reaction kettle - Google Patents
Esterification reaction kettle Download PDFInfo
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- CN116764546A CN116764546A CN202210473168.9A CN202210473168A CN116764546A CN 116764546 A CN116764546 A CN 116764546A CN 202210473168 A CN202210473168 A CN 202210473168A CN 116764546 A CN116764546 A CN 116764546A
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- China
- Prior art keywords
- fixedly connected
- reaction kettle
- sides
- liquid storage
- close
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- 238000005886 esterification reaction Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 125
- 238000006243 chemical reaction Methods 0.000 claims abstract description 80
- 238000003756 stirring Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 20
- 244000309464 bull Species 0.000 claims description 10
- 230000032050 esterification Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract description 26
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 23
- 239000000126 substance Substances 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 150000002148 esters Chemical class 0.000 description 5
- 238000003763 carbonization Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000004715 keto acids Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/005—Feed or outlet devices as such, e.g. feeding tubes provided with baffles
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the technical field of chemical industry, in particular to an esterification reaction kettle, which comprises a reaction kettle, wherein a feeding pipe is fixedly connected to the position, close to the upper end, of the left side of the reaction kettle, a discharging pipe is fixedly connected to the position, close to the lower end, of the right side of the reaction kettle, a motor is fixedly connected to the center of the upper end of the reaction kettle, the lower end of the motor is fixedly connected with a rotating rod, the position, close to the lower end, of the rod wall of the rotating rod is movably connected with a stirring blade, a quantitative liquid adding mechanism is arranged at the upper end of the reaction kettle, so that ethanol and concentrated sulfuric acid can be quantitatively and continuously added to the inside, the quantitative liquid adding mechanism comprises a liquid storage tank, the liquid storage tank is fixedly connected to the positions on two sides of the upper end of the reaction kettle, a liquid outlet pipe is fixedly connected to the lower end of the liquid storage tank, and telescopic rods are fixedly connected to the upper parts of the inner walls of the two sides of the reaction kettle.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to an esterification reaction kettle.
Background
The esterification reaction is an organic chemical reaction, mainly the reaction of alcohol and carboxylic acid or inorganic oxo acid to generate ester and water. The reaction of carboxylic acid with alcohol, inorganic oxyacid with alcohol and inorganic strong acid with alcohol are classified into three types. The esterification of carboxylic acids with alcohols is reversible and generally very slow, so concentrated sulfuric acid is often used as a catalyst. The polycarboxylic acid reacts with the alcohol to form various esters. The reaction of the inorganic strong acid with the alcohol is generally faster. Typical esterification reactions are those of ethanol and acetic acid to produce ethyl acetate with an aromatic odor.
When concentrated sulfuric acid is used as a catalyst, if the amount of the concentrated sulfuric acid is excessive, carbonization reaction occurs, but because water is produced in the reaction, the concentrated sulfuric acid is diluted by the water to cause reverse reaction of the esterification reaction, and meanwhile, a great amount of heat is generated when ethanol is mixed with the concentrated sulfuric acid, the optimal temperature of the esterification reaction is a little upward at one hundred degrees, and the high temperature is unfavorable for the reaction.
For this purpose, an esterification reactor is proposed.
Disclosure of Invention
The invention aims to provide an esterification reaction kettle, which can quantitatively and continuously add ethanol and concentrated sulfuric acid into the esterification reaction kettle, so that the reaction effect is always kept in an optimal state, the reaction efficiency is improved, the esterification reaction is more efficient, and the device is improved, so that the problems in the background technology are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the esterification reaction kettle comprises a reaction kettle, wherein a feeding pipe is fixedly connected to the position, close to the upper end, of the left side of the reaction kettle, a discharging pipe is fixedly connected to the position, close to the lower end, of the right side of the reaction kettle, a motor is fixedly connected to the center of the upper end of the reaction kettle, a rotating rod is fixedly connected to the lower end of the motor, and stirring blades are movably connected to the position, close to the lower end, of the rod wall of the rotating rod;
the upper end of the reaction kettle is provided with a quantitative liquid adding mechanism;
the quantitative liquid adding mechanism can quantitatively heat the inside of the reaction kettle.
The inside of reation kettle is added through the inlet pipe to the material that will need, and the motor starts the work this moment, and the motor drives the bull stick and rotates, and the bull stick rotates and drives the stirring leaf and rotate, stirs the reaction, discharges the ester that will produce through the discharging pipe, can quantitative through quantitative liquid feeding mechanism to reation kettle's inside interpolation sulfuric acid, avoid concentrated sulfuric acid too much to cause the carbonization reaction.
Preferably, the quantitative liquid adding mechanism comprises a liquid storage tank, the liquid storage tank is fixedly connected to the positions of two sides of the upper end of the reaction kettle, a liquid outlet pipe is fixedly connected to the lower end of the liquid storage tank, telescopic rods are fixedly connected to the upper parts of the inner walls of the two sides of the reaction kettle, a first spring is sleeved on the outer sides of the telescopic rods, two liquid storage cylinders are fixedly connected to the opposite sides of the telescopic rods, a baffle is fixedly connected to the upper parts of one sides of the telescopic rods, which are close to the inner walls of the reaction kettle, a cover plate is rotatably connected to the lower ends of the liquid storage cylinders, a bearing plate is fixedly connected to the inner walls of the two sides of the reaction kettle below the telescopic rods, a speed change transmission bearing is rotatably connected to the positions, close to the upper ends, of the rod walls of the rotary rods, and cams are fixedly connected to the outer sides of the speed change transmission bearing.
The method is characterized in that ethanol and concentrated sulfuric acid are respectively arranged in two liquid storage tanks, when a rotating rod rotates, the rotating rod drives a variable speed transmission bearing to rotate, what is described herein is that the positive transmission and the reverse rotation of the variable speed transmission bearing can accelerate and decelerate, so that when the rotating rod drives the variable speed transmission bearing to rotate, the outer side speed of the variable speed transmission bearing is reduced, the rotation of the variable speed transmission bearing drives a cam to rotate, the cam rotates and contacts with a liquid storage cylinder, the liquid storage cylinder is pushed outwards, a cover plate rotationally connected with the lower end of the liquid storage cylinder seals the lower end of the liquid storage cylinder under the action of a bearing plate, the telescopic rod contracts and simultaneously compresses a first spring, the upper end of the liquid storage cylinder is communicated with a liquid outlet pipe, liquid in the liquid storage tank enters the liquid storage cylinder at the moment, when the cam is dislocated with the liquid storage cylinder at the moment, the telescopic rod resets under the action of the first spring, the liquid storage cylinder moves towards the inside of a reaction kettle at the moment, the lower end of the liquid storage cylinder is sealed by a baffle fixedly connected with the liquid outlet pipe at the moment, and the lower end of the liquid storage cylinder is opened under the action of gravity when the lower end of the liquid storage cylinder and the liquid storage cylinder is dislocated with the bearing plate at the lower end.
Preferably, the position that the inside upper end both sides of reation kettle are close to the rear end has all seted up first cavity, the inside swing joint of first cavity has first piston, the lower extreme fixedly connected with bracing piece of first piston, the lower extreme fixedly connected with second spring of first cavity, the lower extreme fixedly connected with second piston of bracing piece, the position that the inside upper end both sides of reation kettle are close to the front end is all seted up flutedly, the front end fixedly connected with trachea of first cavity, the front end of tracheal and the rear end fixed connection of recess, the inside sliding connection of recess has the lug.
When the cam is misplaced with the liquid storage cylinder, the cam continuously rotates to contact with the lug, the lug moves towards the inside of the groove, the lug extrudes gas in the groove into the inside of the first cavity, at the moment, the air pressure pushes the first piston to move downwards, the first piston moves downwards to drive the support rod to move downwards, meanwhile, the second spring is extruded, the support rod moves downwards to enable the second piston to move downwards, so that liquid in the liquid storage cylinder is pushed out as much as possible, when the cam is misplaced with the lug, the first piston resets under the action force of the second spring, and the gas in the first cavity is extruded into the inside of the groove, so that the lug is compounded.
Preferably, the diameter of the second piston is equal to the diameter of the liquid storage cylinder.
The second piston can be made to push out all the liquid inside the liquid storage cylinder.
Preferably, the lower end of the bump is designed as an arc.
Making contact of the cam with the cam easier.
Preferably, the inner wall both sides of reation kettle are located the below of accepting the board and all fixedly connected with horizontal pole, two the equal fixedly connected with first bearing of relative one side of horizontal pole, the inside of first bearing rotates and connects the coiled pipe, the upper end fixedly connected with wide-mouth funnel of coiled pipe, the pipe wall of coiled pipe is close to the position rotation of upper end and is connected with the belt, the one side that the belt is close to the bull stick rotates with the pole wall of bull stick to be connected.
When the liquid storage cylinder discharges liquid, the liquid enters the coiled pipe through the wide-mouth funnel, the rotating rod rotates to drive the coiled pipe to rotate, and the first bearing is fixedly connected to the cross rod, so that the coiled pipe rotates; thus, the liquid in the serpentine tube can be buffered, and the liquid can be thrown away through the serpentine tube.
Preferably, the belt is made of a corrosion resistant material.
Avoid the damage to the belt caused by the concentrated sulfuric acid.
Preferably, the serpentine tube is of axisymmetric design.
Thus avoiding the liquid from being thrown out rapidly during rotation.
Preferably, the second cavity has been seted up to the inside of bull stick, reation kettle's lower extreme inner wall fixedly connected with member, the upper end of member and the equal fixedly connected with first bevel gear of pole wall center department, the both sides and the stirring leaf of bull stick rotate to be connected with, two the equal fixedly connected with second bevel gear of opposite one side of stirring leaf, the outside and the first bevel gear meshing of second bevel gear are connected, two the equal fixedly connected with montant in back one side of stirring leaf.
When the rotating rod rotates, the two stirring blades are driven to rotate, because the rod piece is fixedly connected with the inner wall of the lower end of the reaction kettle, the rod piece is kept motionless, the rod piece keeps motionless the first bevel gear, the second bevel gear meshed with the rod piece is driven to rotate by the stirring blades, so that the second bevel gear rotates, the stirring blades are driven to rotate by the rotation of the second bevel gear, and the vertical rods are driven to rotate by the rotation of the stirring blades.
Preferably, the inner wall of the lower end of the reaction kettle is provided with a porcelain stone.
Preventing the bumping phenomenon in the reaction process.
Compared with the prior art, the invention has the beneficial effects that:
1. thus, ethanol and concentrated sulfuric acid can be quantitatively and continuously added into the reactor, so that the reaction effect is always kept in an optimal state, the reaction efficiency is improved, the esterification reaction is more efficient, and the device is improved;
2. the liquid in the liquid storage cylinder can be pushed out as much as possible by pushing the liquid storage cylinder through the second piston, so that the fake quantity of each time can be more accurate, and the reaction effect is more ideal.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the front face of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 4 is a schematic view of a cam structure according to the present invention;
FIG. 5 is a schematic view of a first piston structure according to the present invention;
FIG. 6 is a schematic view of a bump structure according to the present invention;
fig. 7 is an enlarged schematic view of the structure of fig. 2B according to the present invention.
In the figure: 1. a reaction kettle; 2. a motor; 3. a feed pipe; 4. a discharge pipe; 5. a rotating rod; 6. a liquid adding mechanism; 7. a first cavity; 8. a first piston; 9. a support rod; 10. a second spring; 11. a second piston; 12. an air pipe; 13. a groove; 14. a bump; 15. a wide mouth funnel; 16. a cross bar; 17. a belt; 18. a first bearing; 19. porcelain stone; 20. a second cavity; 21. a rod piece; 22. a first bevel gear; 23. a second bevel gear; 24. stirring the leaves; 25. a vertical rod; 26. a serpentine tube.
601. A liquid storage tank; 602. a liquid outlet pipe; 603. a variable speed drive bearing; 604. a liquid storage cylinder; 605. a cam; 606. a baffle; 607. a telescopic rod; 608. a first spring; 609. a receiving plate; 610. and a cover plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides a technical solution:
1-4, an esterification reaction kettle comprises a reaction kettle 1, wherein a feeding pipe 3 is fixedly connected to the left side of the reaction kettle 1 close to the upper end, a discharging pipe 4 is fixedly connected to the right side of the reaction kettle 1 close to the lower end, a motor 2 is fixedly connected to the center of the upper end of the reaction kettle 1, a rotating rod 5 is fixedly connected to the lower end of the motor 2, stirring blades 24 are movably connected to the position, close to the lower end, of the rod wall of the rotating rod 5, of a porcelain stone 19 is placed on the inner wall of the lower end of the reaction kettle 1;
the upper end of the reaction kettle 1 is provided with a quantitative liquid adding mechanism 6;
the quantitative liquid adding mechanism 6 can quantitatively heat the inside of the reaction kettle 1;
during operation, the inside of reation kettle 1 is added to the material that will need through inlet pipe 3, and motor 2 begins the work this moment, and motor 2 drives bull stick 5 and rotates, and bull stick 5 rotates and drives stirring leaf 24 and rotate, stirs the reaction, discharges the ester that will produce through discharging pipe 4, can be quantitative through quantitative liquid feeding mechanism 6 to the inside interpolation sulfuric acid of reation kettle 1, avoid concentrated sulfuric acid too much to cause the carbonization reaction, put into porcelain stone 19 and be in order to prevent that the bottom from taking place the bumping.
As an embodiment of the present invention, as shown in fig. 1 to 4, the quantitative liquid adding mechanism 6 includes a liquid storage tank 601, the liquid storage tank 601 is fixedly connected to two sides of the upper end of the reaction kettle 1, the lower end of the liquid storage tank 601 is fixedly connected to a liquid outlet pipe 602, the upper parts of two inner walls of the reaction kettle 1 are fixedly connected to telescopic rods 607, the outer sides of the telescopic rods 607 are sleeved with a first spring 608, two opposite sides of the telescopic rods 607 are fixedly connected to liquid storage cylinders 604, a baffle 606 is fixedly connected to the upper part of one side of the liquid storage cylinders 604 close to the inner wall of the reaction kettle 1, a cover plate 610 is rotatably connected to the lower end of the liquid storage cylinders 604, two inner walls of the reaction kettle 1 are fixedly connected to a receiving plate 609 below the telescopic rods 607, the positions of the rod walls of the rotary rods 5 close to the upper end are rotatably connected to a variable speed transmission bearing 603, and the outer sides of the variable speed transmission bearing 603 are fixedly connected to a cam 605;
during operation, ethanol and concentrated sulfuric acid are respectively placed in two liquid storage tanks 601, when a rotating rod 5 rotates, the rotating rod 5 drives a variable speed transmission bearing 603 to rotate, and the explanation is that when the rotating rod 5 drives the variable speed transmission bearing 603 to rotate, the outer speed of the variable speed transmission bearing 603 is reduced, the rotation of the variable speed transmission bearing 603 drives a cam 605 to rotate, the cam 605 is contacted with the liquid storage cylinder 604 when rotating, the liquid storage cylinder 604 is pushed outwards, a cover plate 610 rotationally connected with the lower end of the liquid storage cylinder 604 seals the lower end of the liquid storage cylinder 604 under the action of a bearing plate 609, at the moment, a telescopic rod 607 is contracted and simultaneously compresses a first spring 608, at the moment, the upper end of the liquid storage cylinder 604 is communicated with a liquid outlet pipe 602, at the moment, liquid in the liquid storage cylinder 601 enters the inside of the liquid storage cylinder 604, at the moment, and when the cam 605 is misplaced with the liquid storage cylinder 604, the action of the first spring 608 is reduced, at the moment, the liquid storage cylinder 604 moves towards the inside of the reaction kettle 1, at the moment, a baffle plate 606 fixedly connected with the liquid storage cylinder 604 seals the lower end of the liquid storage pipe 602, the lower end of the liquid storage cylinder 604 is sealed under the action of the bearing plate 609, and the action of the lower end of the bearing plate 609 is opened; thus, ethanol and concentrated sulfuric acid can be quantitatively and continuously added into the reactor, the reaction effect is always kept in an optimal state, the reaction efficiency is improved, the esterification reaction is more efficient, and the device is improved.
As an embodiment of the present invention, as shown in fig. 5 and 6, the two sides of the upper end of the interior of the reaction kettle 1 are both provided with a first cavity 7 near the rear end, the interior of the first cavity 7 is movably connected with a first piston 8, the lower end of the first piston 8 is fixedly connected with a supporting rod 9, the lower end of the first cavity 7 is fixedly connected with a second spring 10, the lower end of the supporting rod 9 is fixedly connected with a second piston 11, the two sides of the upper end of the interior of the reaction kettle 1 are both provided with a groove 13 near the front end, the front end of the first cavity 7 is fixedly connected with an air pipe 12, the front end of the air pipe 12 is fixedly connected with the rear end of the groove 13, the interior of the groove 13 is slidably connected with a bump 14, and the diameter of the second piston 11 is equal to the diameter of the liquid storage cylinder 604;
when the cam 605 is misplaced with the liquid storage cylinder 604 and then continuously rotates to contact with the lug 14, so that the lug 14 moves towards the inside of the groove 13, the lug 14 extrudes gas in the groove 13 into the first cavity 7, at the moment, the first piston 8 is pushed by air pressure to move downwards, the first piston 8 drives the supporting rod 9 to move downwards when moving downwards, meanwhile, the second spring 10 is extruded, the supporting rod 9 moves downwards to enable the second piston 11 to move downwards, so that the liquid in the liquid storage cylinder 604 is pushed out in a quantity, when the cam 605 is misplaced with the lug 14, at the moment, the first piston 8 resets under the acting force of the second spring 10, and the gas in the first cavity 7 is extruded into the inside of the groove 13, so that the lug 14 resets; this allows the cartridge 604 to be more accurate each time it is drained, optimizing the effectiveness of the esterification reaction.
As an embodiment of the present invention, as shown in fig. 2 and 3, two sides of the inner wall of the reaction kettle 1 are located below the receiving plates 609, and are fixedly connected with cross bars 16, two opposite sides of the two cross bars 16 are fixedly connected with first bearings 18, the inside of the first bearings 18 is rotatably connected with a coiled pipe 26, the upper end of the coiled pipe 26 is fixedly connected with a wide-mouth funnel 15, the position, close to the upper end, of the pipe wall of the coiled pipe 26 is rotatably connected with a belt 17, and one side, close to the rotating rod 5, of the belt 17 is rotatably connected with the rod wall of the rotating rod 5;
when the liquid storage cylinder 604 discharges liquid, the liquid enters the coiled pipe 26 through the wide-mouth funnel 15, the rotating rod 5 rotates to drive the coiled pipe 26 to rotate, and the first bearing 18 is fixedly connected to the cross rod 16, so that the coiled pipe 26 rotates; this allows the liquid inside the serpentine tube 26 to be buffered and the liquid to be thrown away through the serpentine tube 26, which makes the effect of the reaction more desirable.
As an embodiment of the present invention, as shown in fig. 2 and 7, a second cavity 20 is formed in the rotating rod 5, a rod 21 is fixedly connected to an inner wall of a lower end of the reaction kettle 1, a first bevel gear 22 is fixedly connected to an upper end of the rod 21 and a center of the rod wall, two sides of the rotating rod 5 are rotatably connected to stirring blades 24, a second bevel gear 23 is fixedly connected to opposite sides of the two stirring blades 24, an outer side of the second bevel gear 23 is meshed with the first bevel gear 22, and a vertical rod 25 is fixedly connected to a back side of the two stirring blades 24;
during operation, when the rotating rod 5 rotates, the two stirring blades 24 are driven to rotate, because the rod piece 21 is fixedly connected with the inner wall of the lower end of the reaction kettle 1, the rod piece 21 keeps motionless the first bevel gear 22, the second bevel gear 23 in meshed connection with the first bevel gear 22 is driven to rotate by the stirring blades 24, so that the second bevel gear 23 rotates, the second bevel gear 23 rotates to drive the stirring blades 24 to rotate, the stirring blades 24 rotate to drive the vertical rods 25 to rotate, so that the stirring of the reacted solution is more uniform, and the reaction speed is promoted.
Working principle:
during operation, required materials are added into the reaction kettle 1 through the feed pipe 3, at the moment, the motor 2 starts to work, the motor 2 drives the rotary rod 5 to rotate, the rotary rod 5 drives the stirring blade 24 to rotate, the reaction is stirred, generated esters are discharged through the discharge pipe 4, sulfuric acid can be quantitatively added into the reaction kettle 1 through the quantitative liquid adding mechanism 6, carbonization reaction caused by excessive concentrated sulfuric acid is avoided, ethanol and concentrated sulfuric acid are respectively arranged in the two liquid storage tanks 601, when the rotary rod 5 rotates, the rotary rod 5 drives the variable speed transmission bearing 603 to rotate, and the explanation is that the forward and reverse rotation of the variable speed transmission bearing 603 can accelerate and decelerate, so that when the rotary rod 5 drives the variable speed transmission bearing 603 to rotate, the outer side speed of the variable speed transmission bearing 603 is reduced, and the rotation of the variable speed transmission bearing 603 drives the cam 605 to rotate, the cam 605 contacts with the liquid storage cylinder 604 when rotating, the liquid storage cylinder 604 is pushed to the outside, the cover plate 610 which is rotationally connected with the lower end of the liquid storage cylinder 604 seals the lower end of the liquid storage cylinder 604 under the action of the bearing plate 609, the telescopic rod 607 is contracted and simultaneously compresses the first spring 608, the upper end of the liquid storage cylinder 604 is communicated with the liquid outlet pipe 602, liquid in the liquid storage tank 601 enters the liquid storage cylinder 604, when the cam 605 is misplaced with the liquid storage cylinder 604, the telescopic rod 607 is reset under the action of the first spring 608, the liquid storage cylinder 604 moves towards the inside of the reaction kettle 1, the baffle plate 606 fixedly connected with the liquid storage cylinder 604 seals the lower end of the liquid outlet pipe 602, and when the lower end of the liquid storage cylinder 604 is misplaced with the bearing plate 609, the cover plate 610 is opened under the action of gravity, and the liquid in the liquid storage cylinder 604 flows out; thus, ethanol and concentrated sulfuric acid can be quantitatively and continuously added into the interior, so that the reaction effect is always kept in an optimal state, the reaction efficiency is improved, the esterification reaction is more efficient, the device is improved, when the cam 605 and the liquid storage barrel 604 are misplaced, the cam 605 is continuously rotated to be in contact with the convex block 14, the convex block 14 moves towards the interior of the groove 13, the convex block 14 extrudes gas in the groove 13 into the interior of the first cavity 7, at the moment, the air pressure pushes the first piston 8 to move downwards, the first piston 8 drives the supporting rod 9 to move downwards when moving downwards, meanwhile, the second spring 10 is extruded, the supporting rod 9 moves downwards to enable the second piston 11 to move downwards, so that the liquid in the liquid storage barrel 604 is pushed out as much as possible, when the cam 605 and the convex block 14 are misplaced, the first piston 8 resets under the acting force of the second spring 10, and the gas in the first cavity 7 is extruded into the interior of the groove 13, and the convex block 14 resets; thus, each time the liquid storage cylinder 604 discharges liquid, the esterification reaction effect is optimal, when the liquid storage cylinder 604 discharges liquid, the liquid enters the coiled pipe 26 through the wide-mouth funnel 15, the rotating rod 5 rotates to drive the coiled pipe 26 to rotate, and the first bearing 18 is fixedly connected to the cross rod 16, so that the coiled pipe 26 rotates; therefore, liquid in the serpentine tube 26 can be buffered, meanwhile, the liquid can be thrown away through the serpentine tube 26, so that the reaction effect is more ideal, when the rotating rod 5 rotates, the two stirring blades 24 are driven to rotate, because the rod piece 21 is fixedly connected with the inner wall of the lower end of the reaction kettle 1, the rod piece 21 is kept motionless, the rod piece 21 keeps the first bevel gear 22 motionless, the second bevel gear 23 in meshed connection with the first bevel gear is driven to rotate by the stirring blades 24, the second bevel gear 23 rotates to enable the second bevel gear 23 to rotate, the stirring blades 24 are driven to rotate, the stirring blades 24 rotate to drive the vertical rods 25 to rotate, the solution to be reacted is stirred more uniformly, and the reaction rate is promoted.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an esterification reaction kettle, includes reation kettle (1), the left side of reation kettle (1) is close to the position fixedly connected with inlet pipe (3) of upper end, the right side of reation kettle (1) is close to the position fixedly connected with discharging pipe (4) of lower extreme, the upper end center department fixedly connected with motor (2) of reation kettle (1), the lower extreme fixedly connected with bull stick (5) of motor (2), the position swing joint that the pole wall of bull stick (5) is close to the lower extreme has stirring leaf (24);
the quantitative liquid adding device is characterized in that a quantitative liquid adding mechanism (6) is arranged at the upper end of the reaction kettle (1);
the quantitative liquid adding mechanism (6) can quantitatively heat the inside of the reaction kettle (1).
2. The esterification reaction kettle according to claim 1, wherein the quantitative liquid adding mechanism (6) comprises a liquid storage tank (601), the liquid storage tank (601) is fixedly connected to the positions of two sides of the upper end of the reaction kettle (1), a liquid outlet pipe (602) is fixedly connected to the inner walls of two sides of the reaction kettle (1), a telescopic rod (607) is fixedly connected to the upper parts of the inner walls of two sides of the reaction kettle (1), a first spring (608) is sleeved on the outer side of the telescopic rod (607), a liquid storage cylinder (604) is fixedly connected to two opposite sides of the telescopic rod (607), a baffle (606) is fixedly connected to the upper parts of one side, close to the inner walls of the reaction kettle (1), of the liquid storage cylinder (604), a cover plate (610) is rotatably connected to the lower ends of the inner walls of two sides of the reaction kettle (1), a bearing (603) is fixedly connected to a bearing (609) under the telescopic rod, and the outer side, close to the upper ends, of the bearing (605) of the telescopic rod (5) is rotatably connected to a variable transmission bearing (603).
3. The esterification reaction kettle according to claim 1, wherein the positions, close to the rear end, of the two sides of the upper end of the interior of the reaction kettle (1) are provided with first cavities (7), the interiors of the first cavities (7) are movably connected with first pistons (8), the lower ends of the first pistons (8) are fixedly connected with supporting rods (9), the lower ends of the first cavities (7) are fixedly connected with second springs (10), the lower ends of the supporting rods (9) are fixedly connected with second pistons (11), the positions, close to the front end, of the two sides of the upper end of the interior of the reaction kettle (1) are provided with grooves (13), the front ends of the first cavities (7) are fixedly connected with air pipes (12), the front ends of the air pipes (12) are fixedly connected with the rear ends of the grooves (13), and the interiors of the grooves (13) are slidably connected with bumps (14).
4. An esterification reactor according to claim 3, wherein the diameter of the second piston (11) is equal to the diameter of the liquid reservoir (604).
5. An esterification reactor according to claim 3, wherein the lower end of the projection (14) is of circular arc design.
6. An esterification reaction kettle according to claim 1, characterized in that two sides of the inner wall of the reaction kettle (1) are located below the bearing plate (609) and fixedly connected with cross bars (16), two opposite sides of the cross bars (16) are fixedly connected with first bearings (18), the interiors of the first bearings (18) are rotationally connected with a coiled pipe (26), the upper ends of the coiled pipe (26) are fixedly connected with a wide-mouth funnel (15), the positions, close to the upper ends, of the pipe walls of the coiled pipe (26) are rotationally connected with belts (17), and one sides, close to the rotating rods (5), of the belts (17) are rotationally connected with the rod walls of the rotating rods (5).
7. An esterification reactor according to claim 6, characterized in that the belt (17) is made of anti-corrosion material.
8. An esterification reactor according to claim 6, characterized in that the serpentine tube (26) is of axisymmetric design.
9. The esterification reaction kettle according to claim 1, wherein a second cavity (20) is formed in the rotating rod (5), a rod piece (21) is fixedly connected to the inner wall of the lower end of the reaction kettle (1), a first bevel gear (22) is fixedly connected to the upper end of the rod piece (21) and the center of the rod wall, two sides of the rotating rod (5) are rotationally connected with stirring blades (24), a second bevel gear (23) is fixedly connected to opposite sides of two stirring blades (24), the outer sides of the second bevel gears (23) are meshed with the first bevel gear (22), and a vertical rod (25) is fixedly connected to the back side of the two stirring blades (24).
10. An esterification reactor according to claim 9, wherein a porcelain stone (19) is placed on the inner wall of the lower end of the reactor (1).
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|---|---|---|---|
| CN202210473168.9A CN116764546A (en) | 2022-04-29 | 2022-04-29 | Esterification reaction kettle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210473168.9A CN116764546A (en) | 2022-04-29 | 2022-04-29 | Esterification reaction kettle |
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| CN116764546A true CN116764546A (en) | 2023-09-19 |
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| CN202210473168.9A Pending CN116764546A (en) | 2022-04-29 | 2022-04-29 | Esterification reaction kettle |
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