CN113145053A - Improved Grignard reagent reaction device - Google Patents
Improved Grignard reagent reaction device Download PDFInfo
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- CN113145053A CN113145053A CN202110506634.4A CN202110506634A CN113145053A CN 113145053 A CN113145053 A CN 113145053A CN 202110506634 A CN202110506634 A CN 202110506634A CN 113145053 A CN113145053 A CN 113145053A
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- 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
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- 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
- B01J19/0053—Details of the reactor
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- 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
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- 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
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
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- 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
- B01J4/008—Feed or outlet control devices
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- 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
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/002—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the feeding side being of particular interest
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- 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 field of reaction devices, in particular to an improved Grignard reagent reaction device which comprises a mounting frame and a three-neck flask, wherein the three-neck flask is communicated with a constant-speed filling component for filling reactants into the three-neck flask at a constant speed. According to the invention, by arranging the transmission shaft, the transmission assembly, the gearbox, the liquid pumping cylinder and the solution bottle, the solution is uniformly injected into the three-neck flask while stirring, manual operation is reduced, and the liquid medicine is uniformly injected into the reaction liquid; through being equipped with poker rod, movable block, lead screw and first regulating wheel, and then conveniently adjust drawing liquid section of thick bamboo single injection volume, adapt to the needs of different reactions to the single volume of feeding, through being equipped with including toper band pulley, drive belt, removal frame, two-way lead screw, worm wheel, worm and second regulating wheel, conveniently adjust the drive ratio of gearbox, and then change the speed that solution was injected, adapt to the needs of different reactions to the filling speed.
Description
Technical Field
The invention relates to the field of reaction devices, in particular to an improved Grignard reagent reaction device.
Background
Grignard reagents are useful in organic synthesis, and Grignard reagents are abbreviated as "Grignard reagents". Is an organometallic compound containing magnesium halide, which is a nucleophile because it contains carbanions. In the preparation process of the Grignard reagent, the Grignard reagent is a covalent compound, magnesium atoms are directly connected with carbon to form a polar covalent bond, and the carbon is an electronegative end, so the Grignard reagent is an extremely strong Lewis base and can take protons from water and other Lewis acids, so the Grignard reagent cannot be contacted with water and carbon dioxide, and the preparation and the initiated reaction of the Grignard reagent need to be carried out under the conditions of no water and air isolation.
Traditional preparation method need make during the halohydrocarbon solution drips into the reaction flask, and the speed of dripping is in order to maintain the steady boiling of reaction liquid and is suitable, generally adopts constant voltage dropping funnel, though can make dropping speed keep at the uniform velocity, can't adjust single dropping liquid volume and dropping liquid speed, and the preparation of the different doses of Grignard reagent of adaptation that can not be fine, adaptability is poor.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background art, the invention provides an improved Grignard reagent reaction device.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
an improved Grignard reagent reaction device comprises a mounting frame and a three-neck flask, wherein a stirring rod is arranged in the three-neck flask, the stirring rod is connected with a first transmission shaft through a transmission assembly, and the first transmission shaft is connected with a driving motor through a coupling; the three-mouth flask is communicated with a constant-speed filling assembly for filling reactants into the three-mouth flask at a constant speed;
the constant-speed filling assembly comprises an injection pipe communicated with the three-neck flask, the injection pipe is communicated with a liquid pumping cylinder, the liquid pumping cylinder is communicated with a solution bottle through a liquid pumping pipe, one-way valves are arranged at the communication positions of the injection pipe and the liquid pumping pipe with the liquid pumping cylinder, a piston plate is nested in the liquid pumping cylinder, and the piston plate is fixedly connected with a driving assembly for driving the piston plate to reciprocate up and down in the liquid pumping cylinder;
the drive assembly include with piston plate fixed connection's piston rod, piston rod upper end fixedly connected with removes the frame, it has the poker rod to run through in the removal frame, the poker rod is connected with the eccentric disc, the first pivot of eccentric disc fixedly connected with, first pivot is connected with the output shaft of derailleur through first drive belt, the input shaft of derailleur with the transmission is connected to first drive shaft.
As a further scheme of the invention: the shifting rod is fixedly connected with a moving block, the eccentric disc is provided with a radial groove for the moving block to slide radially, a lead screw which penetrates through the moving block and is in threaded connection with the moving block is arranged in the radial groove, and the lead screw extends to the outer side of the eccentric disc and is fixedly connected with a first adjusting wheel.
As a further scheme of the invention: the transmission comprises a shell, an input shaft and an output shaft, wherein the input shaft and the output shaft extend to the outer side of the shell; the conical belt wheel is rotatably connected with a moving frame, a bidirectional screw rod penetrates through the outer side of the moving frame, the thread directions of the two groups of bidirectional screw rods are opposite, a worm wheel is fixedly connected to the outer end of the bidirectional screw rod, a worm is meshed with the worm wheel, and the worm extends to the outer side of the shell and is fixedly connected with a second adjusting wheel.
As a further scheme of the invention: the mounting rack comprises a top plate, a bottom plate and a vertical plate for connecting the top plate and the bottom plate, and the three-neck flask is fixed on the mounting rack through a hoop; a first bearing plate fixedly connected with the mounting frame is abutted to the lower part of the solution bottle, a second bearing plate fixedly connected with the mounting frame is fixedly connected with the liquid pumping cylinder, and the driving motor is fixedly connected with a top plate of the mounting frame in a bolt fixing mode; the first rotating shaft is rotatably connected with a fixing frame through a bearing seat, and the fixing frame is fixedly connected with the mounting frame.
As a further scheme of the invention: the utility model discloses a novel stirring rod, including the puddler, the puddler includes vertical pole and articulates the blade in vertical pole below, the puddler upper end run through have with mounting bracket fixed connection's mount, the puddler run through the mount and with the mount rotates to be connected, puddler upper end fixedly connected with driven bevel gear, the meshing has a set of half bevel gear that is the diagonal symmetry above the driven bevel gear, a set of half bevel gear fixedly connected with second transmission shaft, the second transmission shaft runs through the mount and with the mount rotates to be connected, the second transmission shaft is connected with first transmission shaft through the second drive belt.
As a further scheme of the invention: the infusion tube with draw liquid section of thick bamboo intercommunication department is equipped with the first check valve of avoiding solution backward flow draw liquid section of thick bamboo, the liquid suction pipe with draw liquid section of thick bamboo intercommunication department is equipped with the second check valve of avoiding solution backward flow solution bottle.
As a further scheme of the invention: the movable frame is a rectangular annular frame, and the poke rod is nested in the movable frame and is in sliding connection with the inner wall of the movable frame.
As a further scheme of the invention: the moving block is nested in the radial groove and is in sliding butt joint with the inner wall of the radial groove; the inner side of the screw rod is rotatably connected with the inner wall of the radial groove through a bearing seat.
As a further scheme of the invention: the inner wall of the shell is provided with a transverse sliding groove for accommodating the moving frame, and the bidirectional screw rod is nested in the transverse sliding groove.
After adopting the structure, compared with the prior art, the invention has the following advantages:
according to the invention, by arranging the transmission shaft, the transmission assembly, the gearbox, the liquid extraction cylinder and the solution bottle, the solution is uniformly injected into the three-neck flask while stirring, manual operation is reduced, liquid medicine is uniformly injected into reaction liquid, the uniformity of reaction is improved, and the reaction speed is increased.
According to the invention, the stroke of the piston plate is conveniently adjusted by arranging the poke rod, the moving block, the screw rod and the first adjusting wheel, so that the single injection amount of the liquid pumping cylinder is conveniently adjusted, the requirements of different reactions on the single feeding amount are met, and the adaptability is better.
The invention is provided with the conical belt wheel, the transmission belt, the moving frame, the bidirectional screw rod, the worm wheel, the worm and the second adjusting wheel, so that the transmission ratio of the gearbox can be conveniently adjusted, the rotating speed of the eccentric disc can be further controlled, the injection speed of the solution can be further changed, and the requirements of different reactions on the injection speed can be met.
Drawings
FIG. 1 is a schematic structural diagram of an improved Grignard reagent reaction device.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a left side view of an eccentric disk in the modified grignard reagent reaction apparatus.
Fig. 4 is a schematic view of the internal structure of a transmission case in the modified grignard reagent reaction apparatus.
Fig. 5 is a schematic perspective view of a conical pulley in the modified grignard reagent reaction apparatus.
In the figure: 1-a mounting frame; 2-three-neck flask; 3-hoop holding; 4-a stirring rod; 5-an injection pipe; 6-a liquid pumping cylinder; 7-a liquid pumping pipe; 8-solution bottle; 9-a piston plate; 10-a piston rod; 11-moving the frame; 12-a poker bar; 13-eccentric disc; 14-a first shaft; 15-a first drive belt; 16-a transmission; 17-a first drive shaft; 18-a drive motor; 19-a moving block; 20-a screw rod; 21-a radial slot; 22-a first regulating wheel; 23-a housing; 24-a conical pulley; 25-a transmission belt; 26-a moving rack; 27-a bidirectional screw rod; 28-a worm gear; 29-a worm; 30-a second regulating wheel; 31-a passive bevel gear; 32-half bevel gear; 33-a fixing frame; 34-a second drive shaft; 35-second drive belt.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 5, in an embodiment of the present invention, an improved grignard reagent reaction apparatus includes a mounting frame 1 and a three-neck flask 2, a stirring rod 4 is disposed in the three-neck flask 2, the stirring rod 4 is connected to a first transmission shaft 17 through a transmission assembly, and the first transmission shaft 17 is connected to a driving motor 18 through a coupling; the three-mouth flask 2 is communicated with a constant-speed filling component for filling the reactant into the three-mouth flask 2 at a constant speed;
the constant-speed filling assembly comprises an injection pipe 5 communicated with the three-neck flask 2, the injection pipe 5 is communicated with a liquid pumping cylinder 6, the liquid pumping cylinder 6 is communicated with a solution bottle 8 through a liquid pumping pipe 7, one-way valves are arranged at the communication positions of the injection pipe 5 and the liquid pumping pipe 7 with the liquid pumping cylinder 6, a piston plate 9 is nested in the liquid pumping cylinder 6, and the piston plate 9 is fixedly connected with a driving assembly for driving the piston plate 9 to reciprocate up and down in the liquid pumping cylinder 6;
the drive assembly include with piston plate 9 fixed connection's piston rod 10, piston rod 10 upper end fixedly connected with removes frame 11, it has poker rod 12 to run through in the removal frame 11, poker rod 12 is connected with eccentric disc 13, eccentric disc 13 fixedly connected with first pivot 14, first pivot 14 is connected with the output shaft of derailleur 16 through first drive belt 15, the input shaft of derailleur 16 with transmission is connected to first transmission shaft 17.
Specifically, when the grignard reagent is prepared, before reaction, a reaction dosage of a halogenated hydrocarbon ether solution is injected into a solution bottle 8, then anhydrous ether and magnesium chips are injected into a three-neck flask, a switch of a driving motor 18 is started, the driving motor 18 drives a first transmission shaft 17 to rotate, the first transmission shaft 17 drives a stirring rod 4 to rotate through a transmission component, meanwhile, the first transmission shaft 17 drives a first rotating shaft 14 to rotate through a speed changer 16, the first rotating shaft 14 drives an eccentric disc 13 to rotate, the eccentric disc 13 drives a poke rod 12 on the eccentric disc to do circular motion, the poke rod 12 drives a moving frame 11 to move up and down, the moving frame 11 drives a piston plate 9 to move up and down in a liquid extraction cylinder 6 through a piston rod 10, the liquid extraction cylinder 6 intermittently pumps the halogenated hydrocarbon ether solution in the solution bottle 8 into the three-neck flask 2, and the halogenated hydrocarbon ether solution is injected into the three-neck flask 2 at a constant speed during stirring, the reaction is more uniform and sufficient, and the reaction efficiency is improved.
In the embodiment, the mounting rack 1 comprises a top plate, a bottom plate and a vertical plate for connecting the top plate and the bottom plate, and the three-neck flask 2 is fixed on the mounting rack 1 through a hoop 3; a first bearing plate fixedly connected with the mounting frame 1 is abutted to the lower part of the solution bottle 8, a second bearing plate fixedly connected with the mounting frame 1 is fixedly connected with the liquid pumping cylinder 6, and the driving motor 18 is fixedly connected with a top plate of the mounting frame 1 in a bolt fixing mode; the first rotating shaft 14 is rotatably connected with a fixed frame 33 through a bearing seat, and the fixed frame 33 is fixedly connected with the mounting frame 1.
In this embodiment, the stirring rod 4 includes a vertical rod and a blade hinged below the vertical rod, a fixing frame 33 fixedly connected with the mounting frame 1 penetrates through the upper end of the stirring rod 4, the stirring rod 4 penetrates through the fixing frame 33 and is rotatably connected with the fixing frame 33, a driven bevel gear 31 is fixedly connected with the upper end of the stirring rod 4, a set of half bevel gears 33 symmetrical to each other in diagonal are meshed above the driven bevel gear 31, the set of half bevel gears 33 are fixedly connected with a second transmission shaft 34, the second transmission shaft 34 penetrates through the fixing frame 33 and is rotatably connected with the fixing frame 33, and the second transmission shaft 34 is connected with a first transmission shaft 17 through a second transmission belt 35.
Specifically, the driving motor 18 drives the first transmission shaft 17 to rotate, the first transmission shaft 17 drives the second transmission shaft 34 to rotate through the second transmission belt 35, and the group of half-width bevel gears 33 drive the driven bevel gears 31 to rotate forward and backward periodically, so that the stirring effect of the stirring rod 4 is improved, the turbulent flow effect of the reaction solution in the three-neck flask 2 is improved, and the reaction efficiency is improved.
In this embodiment, a first check valve for preventing the solution from flowing back to the liquid suction cylinder 6 is disposed at the communication position between the injection pipe 5 and the liquid suction cylinder 6, and a second check valve for preventing the solution from flowing back to the solution bottle 8 is disposed at the communication position between the liquid suction pipe 7 and the liquid suction cylinder 6.
Specifically, the extraction and injection of the solution are realized through the cooperation of the piston plate 9 and the first one-way valve and the second one-way valve.
In this embodiment, the movable frame 11 is a rectangular annular frame, and the poke rod 12 is nested in the movable frame 11 and is slidably connected with the inner wall of the movable frame 11.
In another embodiment of the present invention, in order to control the single amount of solution, the tap lever 12 is fixedly connected with a moving block 19, the eccentric disc 13 is provided with a radial groove 21 for the moving block 19 to slide radially, a lead screw 20 penetrating through the moving block 19 and in threaded connection with the moving block 19 is arranged in the radial groove 21, and the lead screw 20 extends to the outer side of the eccentric disc 13 and is fixedly connected with a first adjusting wheel 22.
Specifically, by screwing the first adjusting wheel 22, the lead screw 20 drives the moving block 19 to move in the radial groove 21, the moving block 19 drives the poking rod 12 to move, so that the radial distance between the moving rod 12 and the eccentric disc 13 is changed, the diameter of the poking rod 12 in a circular motion track is changed, the stroke of the piston plate 9 moving up and down in the liquid pumping cylinder 6 is changed, the single injection amount is changed, and the adjustment is convenient.
In the present embodiment, the moving block 19 is nested in the radial groove 21 and is in sliding contact with the inner wall of the radial groove 21; the inner side of the screw rod 20 is rotatably connected with the inner wall of the radial groove 21 through a bearing seat.
In a further embodiment of the present invention, in order to realize the control of the injection speed, the transmission 16 includes a housing 23, and an input shaft and an output shaft extending to the outside of the housing 23, two sets of conical pulleys 24 are oppositely arranged in the housing 23, and the two sets of conical pulleys 24 are respectively connected with the output shaft and the input shaft by splines; the conical belt wheel 24 is rotatably connected with a moving frame 26, a bidirectional screw rod 30 penetrates through the outer side of the moving frame 26, the thread directions of the two groups of bidirectional screw rods 30 are opposite, a worm wheel 28 is fixedly connected to the outer end of the bidirectional screw rod 30, a worm 29 is meshed with the worm wheel 28, and the worm 29 extends to the outer side of the shell 23 and is fixedly connected with a second adjusting wheel 30.
Specifically, through revolving the second regulating wheel 30 soon, worm 29 drives two sets of worm wheels 28 and rotates, and two sets of removal framves 26 drive two sets of toper band pulleys respectively and do in opposite directions or move dorsad, and then change the drive ratio of output shaft and input shaft, and then change the rotational speed of eccentric disc 13, and then change the speed that piston plate 9 reciprocated, and then change solution injection speed, adapt to the requirement of different reactions to dropping liquid speed, have better adaptability.
In this embodiment, the inner wall of the housing 23 is provided with a transverse sliding slot for accommodating the moving frame 26, and the bidirectional screw rod 30 is nested in the transverse sliding slot.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.
Claims (9)
1. The improved Grignard reagent reaction device is characterized by comprising a mounting frame (1) and a three-neck flask (2), wherein a stirring rod (4) is arranged in the three-neck flask (2), the stirring rod (4) is connected with a first transmission shaft (17) through a transmission assembly, and the first transmission shaft (17) is connected with a driving motor (18) through a coupler; the three-mouth flask (2) is communicated with a constant-speed filling component for filling reactants into the three-mouth flask (2) at a constant speed;
the constant-speed filling assembly comprises an injection pipe (5) communicated with the three-neck flask (2), the injection pipe (5) is communicated with a liquid pumping cylinder (6), the liquid pumping cylinder (6) is communicated with a solution bottle (8) through a liquid pumping pipe (7), one-way valves are arranged at the communication positions of the injection pipe (5) and the liquid pumping pipe (7) and the liquid pumping cylinder (6), a piston plate (9) is nested in the liquid pumping cylinder (6), and the piston plate (9) is fixedly connected with a driving assembly for driving the piston plate (9) to reciprocate up and down in the liquid pumping cylinder (6);
the drive assembly include with piston plate (9) fixed connection's piston rod (10), piston rod (10) upper end fixedly connected with removes frame (11), it has poker rod (12) to run through in removing frame (11), poker rod (12) are connected with eccentric disc (13), the first pivot (14) of eccentric disc (13) fixedly connected with, first pivot (14) are connected with the output shaft of derailleur (16) through first drive belt (15), the input shaft of derailleur (16) with transmission is connected to first transmission shaft (17).
2. The improved Grignard reagent reaction device as claimed in claim 1, wherein the poker rod (12) is fixedly connected with a moving block (19), the eccentric disc (13) is provided with a radial groove (21) for the moving block (19) to slide radially, a lead screw (20) penetrating through the moving block (19) and in threaded connection with the moving block (19) is arranged in the radial groove (21), and the lead screw (20) extends to the outer side of the eccentric disc (13) and is fixedly connected with a first adjusting wheel (22).
3. An improved grignard reagent reaction device according to claim 1 or 2, wherein the transmission (16) comprises a housing (23) and an input shaft and an output shaft extending to the outside of the housing (23), two sets of conical pulleys (24) are oppositely arranged in the housing (23), and the two sets of conical pulleys (24) are respectively connected with the output shaft and the input shaft by splines; the conical belt wheel (24) is rotatably connected with a moving frame (26), a bidirectional screw rod (30) penetrates through the outer side of the moving frame (26), the thread directions of the two groups of bidirectional screw rods (30) are opposite, a worm wheel (28) is fixedly connected to the outer end of each bidirectional screw rod (30), a worm (29) is meshed with each worm wheel (28), and each worm (29) extends to the outer side of the shell (23) and is fixedly connected with a second adjusting wheel (30).
4. The improved Grignard reagent reaction device as claimed in claim 1, wherein the mounting frame (1) comprises a top plate and a bottom plate and a vertical plate connecting the top plate and the bottom plate, the three-neck flask (2) is fixed on the mounting frame (1) through a hoop (3); a first bearing plate fixedly connected with the mounting frame (1) is connected below the solution bottle (8) in an abutting mode, a second bearing plate fixedly connected with the mounting frame (1) is fixedly connected with the liquid pumping cylinder (6), and the driving motor (18) is fixedly connected with a top plate of the mounting frame (1) in a bolt fixing mode; the first rotating shaft (14) is rotatably connected with a fixing frame (33) through a bearing seat, and the fixing frame (33) is fixedly connected with the mounting frame (1).
5. An improved Grignard reagent reaction device according to claim 1, the stirring rod (4) comprises a vertical rod and blades hinged below the vertical rod, a fixed frame (33) fixedly connected with the mounting frame (1) penetrates through the upper end of the stirring rod (4), the stirring rod (4) penetrates through the fixed frame (33) and is rotationally connected with the fixed frame (33), the upper end of the stirring rod (4) is fixedly connected with a driven bevel gear (31), a group of half-width bevel gears (33) which are in diagonal symmetry are meshed above the driven bevel gear (31), the group of half-width bevel gears (33) is fixedly connected with a second transmission shaft (34), the second transmission shaft (34) penetrates through the fixed frame (33) and is rotationally connected with the fixed frame (33), the second transmission shaft (34) is connected with a first transmission shaft (17) through a second transmission belt (35).
6. An improved Grignard reagent reaction device according to claim 1, wherein the connection between the injection tube (5) and the liquid extraction cylinder (6) is provided with a first check valve for preventing the solution from flowing back to the liquid extraction cylinder (6), and the connection between the liquid extraction tube (7) and the liquid extraction cylinder (6) is provided with a second check valve for preventing the solution from flowing back to the solution bottle (8).
7. An improved Grignard reagent reaction device according to claim 1, characterized in that the movable frame (11) is a rectangular annular frame, and the poke rod (12) is nested in the movable frame (11) and is connected with the inner wall of the movable frame (11) in a sliding manner.
8. An improved grignard reagent reaction device according to claim 2, wherein the mobile block (19) is nested within the radial groove (21) and is in sliding abutment with the inner wall of the radial groove (21); the inner side of the screw rod (20) is rotationally connected with the inner wall of the radial groove (21) through a bearing seat.
9. An improved Grignard reagent reaction device according to claim 3, characterized in that the inner wall of the housing (23) is provided with a transverse sliding groove for accommodating the moving rack (26), and the bidirectional screw rod (30) is nested in the transverse sliding groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110506634.4A CN113145053A (en) | 2021-05-10 | 2021-05-10 | Improved Grignard reagent reaction device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110506634.4A CN113145053A (en) | 2021-05-10 | 2021-05-10 | Improved Grignard reagent reaction device |
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| US20060278660A1 (en) * | 2005-06-08 | 2006-12-14 | Ling Zhang | Automotive grease gun |
| CN106904300A (en) * | 2017-04-24 | 2017-06-30 | 中山泰坦工艺品有限公司 | A kind of quantitative filling device for fumigating machine |
| WO2019184028A1 (en) * | 2018-03-27 | 2019-10-03 | 清远佳致新材料研究院有限公司 | Pulse-flow-type reaction kettle |
| CN210102058U (en) * | 2019-05-20 | 2020-02-21 | 山东清洋新材料有限公司 | Chemical liquid batching quantitative filling device |
| CN112476517A (en) * | 2020-11-06 | 2021-03-12 | 常德市同创包装有限公司 | Automatic shred device of banded food processing |
| CN112657369A (en) * | 2020-12-23 | 2021-04-16 | 李照明 | Intermittent type compounding structure and lipstick production are with raw materials mediation equipment |
-
2021
- 2021-05-10 CN CN202110506634.4A patent/CN113145053A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060278660A1 (en) * | 2005-06-08 | 2006-12-14 | Ling Zhang | Automotive grease gun |
| CN106904300A (en) * | 2017-04-24 | 2017-06-30 | 中山泰坦工艺品有限公司 | A kind of quantitative filling device for fumigating machine |
| WO2019184028A1 (en) * | 2018-03-27 | 2019-10-03 | 清远佳致新材料研究院有限公司 | Pulse-flow-type reaction kettle |
| CN210102058U (en) * | 2019-05-20 | 2020-02-21 | 山东清洋新材料有限公司 | Chemical liquid batching quantitative filling device |
| CN112476517A (en) * | 2020-11-06 | 2021-03-12 | 常德市同创包装有限公司 | Automatic shred device of banded food processing |
| CN112657369A (en) * | 2020-12-23 | 2021-04-16 | 李照明 | Intermittent type compounding structure and lipstick production are with raw materials mediation equipment |
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Application publication date: 20210723 |
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| RJ01 | Rejection of invention patent application after publication |