CN114797717A

CN114797717A - Reation kettle is used in methyl cyclohexanediamine production

Info

Publication number: CN114797717A
Application number: CN202111468884.XA
Authority: CN
Inventors: 杨书显; 罗国荣; 刘海洋; 郭松民; 卢世博; 葛兆伟; 姚香洁; 韩春梅; 毛永钦; 侯家振
Original assignee: Henan Lei Bairui New Mstar Technology Ltd
Current assignee: Henan Lei Bairui New Mstar Technology Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-07-29
Anticipated expiration: 2041-12-03
Also published as: CN114797717B

Abstract

The invention discloses a reaction kettle for producing methylcyclohexanediamine, and relates to the technical field of methylcyclohexanediamine production. Through mouth style of calligraphy hollow tube when rotating, exhaust through the exhaust hole, make the mixed effect of gas-liquid better under the prerequisite of not addding the (mixing) shaft, make simple structure's mouth style of calligraphy hollow tube subsequent washing of being convenient for, circulating fan through setting up, solenoid valve one, hollow section of thick bamboo two, hollow section of thick bamboo three, hose two, the piston cylinder, the piston piece, the piston rod, the cooperation setting of discharge valve and spring, make the piston cylinder reciprocating motion under the direction of piston rod, thereby make mouth style of calligraphy hollow tube limit round connecting axle rotation limit side-to-side movement, make the stirring scope of mouth style of calligraphy hollow tube bigger.

Description

Reation kettle is used in methyl cyclohexanediamine production

Technical Field

The invention relates to the technical field of production of methylcyclohexanediamine, and particularly relates to a reaction kettle for producing methylcyclohexanediamine.

Background

The methylcyclohexanediamine (alicyclic amine curing agent chain extender HTDA) is an alicyclic amine monomer with a side methyl group, is a novel alicyclic amine epoxy resin curing agent, and the production method of the methylcyclohexanediamine mainly comprises an aniline hydrogenation catalysis method, a nitrocyclohexane reduction method, a cyclohexanol catalytic ammonolysis method, a cyclohexanone catalytic ammonolysis method, a cyclohexane direct ammonification method, a chlorocyclohexane catalytic ammonolysis method and the like.

At present, when hydrogenation reation kettle prepared methyl ring ethylenediamine, reation kettle (mixing) shaft mechanism was simple, and stirring effect is not good, and because of reation kettle is not convenient for dismantle the washing, adopts high pressure water pipe to wash reation kettle inside usually, is not convenient for wash, and the cleaning range is little. Therefore, the reaction kettle for producing the methylcyclohexanediamine is provided for solving the problems.

Disclosure of Invention

One) technical problem to be solved

The invention aims to make up the defects of the prior art and provides a reaction kettle for producing methylcyclohexanediamine.

II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a reaction kettle for producing methylcyclohexanediamine comprises a kettle body, wherein a motor is installed at the top of the kettle body, an output rotating shaft of the motor is fixedly connected with a connecting shaft, the top of the connecting shaft penetrates through the kettle body and is in rotary seal with the inner top wall of the kettle body, the connecting shaft is a hollow cylinder body, two piston cylinders are arranged on two sides of the connecting shaft, piston rods and piston blocks which are matched with the piston cylinders are arranged in the piston cylinders, two ends of each piston block penetrate through the piston cylinders, one ends, close to each other, of the two piston cylinders are fixedly connected to the outer surface of the connecting shaft, the two piston blocks are respectively and fixedly sleeved on the outer surfaces of the two piston rods, a second hose for conveying gas is fixedly communicated with an inner cavity of each piston cylinder, an exhaust valve is communicated with a cavity, close to one end of the second hose, of the piston cylinder, and a spring is sleeved on the outer portion of each piston rod, the utility model discloses a two-stroke-type floating piston rod, including piston rod, spring, piston rod, the equal fixedly connected with of surface style of calligraphy hollow tube of every piston cylinder, the both ends of spring are fixed connection respectively and are kept away from one end each other at the piston rod and the one end that the piston cylinder kept away from each other, the equal fixedly connected with of surface style of calligraphy hollow tube of every piston cylinder, the outside of every style of calligraphy hollow tube all overlaps and is equipped with circular showy board, the equal fixed two style of calligraphy sponge blocks of inlaying of surface of every circular showy board, and the style of calligraphy hollow tube of mouthful style of calligraphy run through a style of calligraphy sponge block and contact with a style of calligraphy sponge block, the surface of every circular showy board is all fixed the annular rubber circle that has cup jointed.

Further, circulating fan is installed at the top of the cauldron body, circulating fan's inlet end runs through the cauldron body and extends to the inside of the cauldron body, the outside cover of connecting axle is equipped with hollow section of thick bamboo two, and the top and the connecting axle rotary seal of hollow section of thick bamboo two, circulating fan outlet duct's an end of giving vent to anger runs through hollow section of thick bamboo two and is linked together with hollow section of thick bamboo two's inner chamber, circulating fan is close to hollow section of thick bamboo two and gives vent to anger the end and installs solenoid valve one, the external fixation of connecting axle has cup jointed hollow section of thick bamboo three, and hollow section of thick bamboo three top and hollow section of thick bamboo two rotary seal, the one end that the piston cylinder was kept away from to every hose two all is linked together with hollow section of thick bamboo three inner chamber.

Further, the outside cover of connecting axle is equipped with hollow section of thick bamboo one, and hollow section of thick bamboo one and connecting axle rotary seal, the top fixed connection of hollow section of thick bamboo one is at the internal roof of the cauldron body, and the bottom of hollow section of thick bamboo one and the top fixed connection of hollow section of thick bamboo two, the air inlet has been seted up at the top of connecting axle, and the air inlet is linked together with the inner chamber of connecting axle, the air inlet is located hollow section of thick bamboo one inside, another end of giving vent to anger of circulating fan outlet duct runs through hollow section of thick bamboo and is linked together with hollow section of thick bamboo one's inner chamber in the lump, two hoses one of inner chamber fixedly connected with of connecting axle, and hose one end of keeping away from the connecting axle is linked together with the cavity in two exhaust holes respectively, the exhaust hole that the equidistance was arranged is all seted up to the surface of every mouthful style of calligraphy hollow tube.

Furthermore, the bottom of the connecting shaft is fixedly connected with two guide rods, and the guide rods are connected with the bottom of the square hollow tube in a sliding mode.

Furthermore, the interior roof of the cauldron body is installed and is the high pressure nozzle of circumference array, and high pressure nozzle is connected with outside water pipe, every high pressure nozzle's delivery port all sets up towards cauldron body bottom.

Further, the top of the kettle body is provided with a feed inlet, and the bottom of the kettle body is provided with a discharge outlet.

Thirdly), the beneficial effects are as follows:

compared with the prior art, this reation kettle is used in methyl cyclohexanediamine production has following beneficial effect:

the invention can exhaust through the exhaust hole when the square hollow pipe rotates through the matching arrangement of the circulating fan, the electromagnetic valve II, the hollow cylinder I, the air inlet, the hose I and the exhaust hole, and can ensure that the gas-liquid mixing effect is better on the premise of not additionally arranging a stirring shaft, so that the square hollow pipe with simple structure is convenient for subsequent cleaning, the square hollow pipe can move left and right while rotating around the connecting shaft by the matching arrangement of the circulating fan, the electromagnetic valve I, the hollow cylinder II, the hollow cylinder III, the hose II, the piston cylinder, the piston block, the piston rod, the exhaust valve and the spring, so that the stirring range of the square hollow pipe is larger, and the square hollow pipe can move along with the movement of the square hollow pipe when cleaning through the arranged circular floating plate, the annular rubber ring and the square sponge block, make cyclic annular rubber circle contact the inner wall of the connecting axle and the cauldron body to make circular floating plate and mouth style of calligraphy sponge piece go up and down along with the rotatory limit in the horizontal plane limit of the internal portion of cauldron under the effect of buoyancy, thereby brush the inner wall of the connecting axle and the cauldron body and the surface of mouth style of calligraphy hollow tube and sweep, the cleaning range is bigger, and the effect is better, and high pressure nozzle's setting can wash the regional and guide bar in bottom of the cauldron body that cyclic annular rubber circle and mouth style of calligraphy sponge piece can not reach.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the mechanism of FIG. 1 at A according to the present invention;

FIG. 3 is an enlarged view of the mechanism of FIG. 1 at B according to the present invention;

FIG. 4 is a schematic view of the connection between the square hollow tube and the circular floating plate;

FIG. 5 is a schematic view of the two-way distribution of the exhaust valve and hose of the present invention.

In the figure: 1. a kettle body; 2. an exhaust hole; 3. a square hollow pipe; 4. a circular floating plate; 5. a spring; 6. a piston rod; 7. a high pressure spray head; 8. a first electromagnetic valve; 9. a circulating fan; 10. a guide bar; 11. a motor; 12. a first hose; 13. a piston block; 14. a piston cylinder; 15. a connecting shaft; 16. a first hollow cylinder; 17. an air inlet; 18. an annular rubber ring; 19. a hollow cylinder II; 20. a hollow cylinder III; 21. a square sponge block; 22. a second electromagnetic valve; 23. and a second hose.

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.

As shown in fig. 1 to 5, the present invention provides a technical solution: a reaction kettle for producing methylcyclohexanediamine comprises a kettle body 1, a motor 11 is installed at the top of the kettle body 1, an output rotating shaft of the motor 11 is fixedly connected with a connecting shaft 15, the top of the connecting shaft 15 penetrates through the kettle body 1 and is in rotary seal with the inner top wall of the kettle body 1, the motor 11 can drive the connecting shaft 15 to rotate, the sealing effect of the connecting shaft 15 and the kettle body 1 is guaranteed, a feeding hole is formed in the top of the kettle body 1, a discharging hole is formed in the bottom of the kettle body 1, the connecting shaft 15 is a hollow cylinder body and is convenient for air flow to pass through, a circulating fan 9 is installed at the top of the kettle body 1, the air inlet end of the circulating fan 9 penetrates through the kettle body 1 and extends to the inside of the kettle body 1, a hollow cylinder II 19 is sleeved outside the connecting shaft 15, the top of the hollow cylinder II 19 is in rotary seal with the connecting shaft 15, the rotary seal belongs to one of dynamic seal, and the rotary seal is composed of a slip ring filled with polytetrafluoroethylene and a rubber O-shaped ring providing elasticity, the circulating fan 9 is used for sealing a rod, a shaft, a pin, a rotary joint and the like which have rotary or swing motion, one air outlet end of an air outlet pipe of the circulating fan 9 penetrates through the hollow cylinder II 19 and is communicated with an inner cavity of the hollow cylinder II 19, a first electromagnetic valve 8 is installed at the air outlet end, close to the hollow cylinder II 19, of the circulating fan 9, a third hollow cylinder 20 is fixedly sleeved on the outer surface of the connecting shaft 15, the top of the third hollow cylinder 20 is in rotary sealing with the hollow cylinder II 19, and the circulating fan 9 extracts high-pressure hydrogen in the kettle body 1 and sends the high-pressure hydrogen into the third hollow cylinder 20 through the first electromagnetic valve 8 and the hollow cylinder II 19.

Two piston cylinders 14 are arranged on two sides of the connecting shaft 15, piston rods 6 and piston blocks 13 which are matched with the piston cylinders 14 are arranged in the piston cylinders 14, two ends of each piston block 13 penetrate through the piston cylinders 14, one ends, close to each other, of the two piston cylinders 14 are fixedly connected to the outer surface of the connecting shaft 15, sealing is achieved between the piston rods 6 and the piston cylinders 14 through skeleton oil seals, the piston cylinders 14 can rotate along with the connecting shaft 15 under the action of the piston rods 6, the two piston blocks 13 are fixedly sleeved on the outer surfaces of the two piston rods 6 respectively, a hose II 23 used for conveying gas is fixedly communicated with an inner cavity of each piston cylinder 14, a cavity, close to one end of the hose II 23, of each piston cylinder 14 is communicated with an exhaust valve 24, a spring 5 is sleeved outside each piston rod 6, two ends of the spring 5 are fixedly connected to one end, far away from each other, of the piston rods 6 and one end, far away from each piston cylinder 14 respectively, one end of each hose II 23, which is far away from the piston cylinder 14, is communicated with the inner cavity of the hollow cylinder III 20, the outer surface of each piston cylinder 14 is fixedly connected with the square hollow tube 3, hydrogen in the hollow cylinder III 20 is sent into the piston cylinder 14 through the hose II 23, and the piston cylinder 14 rotates to reciprocate under the guide of the piston rod 6 by combining the reset action of the exhaust valve 24 and the spring 5, so that the motion track of the square hollow tube 3 is adjusted, and the stirring range of the square hollow tube 3 is larger.

The outer portion of the connecting shaft 15 is sleeved with a first hollow cylinder 16, the first hollow cylinder 16 is rotationally sealed with the connecting shaft 15, the top of the first hollow cylinder 16 is fixedly connected to the inner top wall of the kettle body 1, the bottom of the first hollow cylinder 16 is fixedly connected with the top of a second hollow cylinder 19, the top of the connecting shaft 15 is provided with an air inlet 17, the air inlet 17 is communicated with an inner cavity of the connecting shaft 15, the air inlet 17 is located inside the first hollow cylinder 16, the other air outlet end of an air outlet pipe of the circulating fan 9 penetrates through the first hollow cylinder 16 and is communicated with the inner cavity of the first hollow cylinder 16, the inner cavity of the connecting shaft 15 is fixedly connected with two first hoses 12, one end, far away from the connecting shaft 15, of each first hose 12 is respectively communicated with cavities of the two exhaust holes 2, the exhaust holes 2 are equidistantly arranged on the outer surface of each square-shaped hollow pipe 3, and the circulating fan 9 enables high-pressure air inside the kettle body 1 to pass through a second electromagnetic valve 22, The hollow cylinder I16, the air inlet 17 and the hose I12 are fed into the inner cavity of the square hollow tube 3 and are discharged through the exhaust holes 2 in the rotary square hollow tube 3, so that the gas-liquid mixing effect is better on the premise of not additionally arranging the stirring shaft, and the square hollow tube 3 with the simple structure is convenient for subsequent cleaning.

The circular floating plate 4 is sleeved outside each square-shaped hollow pipe 3, two square-shaped sponge blocks 21 are fixedly embedded on the outer surface of each circular floating plate 4, the square-shaped hollow pipe 3 penetrates through the square-shaped sponge blocks 21 and is in contact with the square-shaped sponge blocks 21, the annular rubber ring 18 is fixedly sleeved on the outer surface of each circular floating plate 4, the circular floating plates 4, the annular rubber ring 18 and the square-shaped sponge blocks 21 are arranged, when the cleaning kettle is cleaned, the circular rubber ring 18 can be in contact with the connecting shaft 15 and the inner wall of the kettle body 1 and the circular floating plates 4 and the square-shaped sponge blocks 21 can lift along with the rotation of the horizontal plane inside the kettle body 1 under the action of buoyancy, so that the inner walls of the connecting shaft 15 and the kettle body 1 and the outer surface of the square-shaped hollow pipe 3 are brushed, the cleaning range is larger, and the cleaning effect is better, two guide bars 10 of the bottom fixedly connected with of connecting axle 15, and the bottom sliding connection of guide bar 10 and mouth style of calligraphy hollow tube 3, the setting of guide bar 10, can support mouth style of calligraphy hollow tube 3, the high pressure nozzle 7 that is the circumference array is installed to the interior roof of cauldron body 1, and high pressure nozzle 7 is connected with outside water pipe, the delivery port of every high pressure nozzle 7 all sets up towards cauldron body 1 bottom, high pressure nozzle 7's setting, can wash annular rubber circle 18 and the regional and guide bar 10 in bottom of the cauldron body 1 that mouth style of calligraphy sponge piece 21 contact can not arrive, the cleaning performance is better.

The working principle is as follows: the motor 11 is driven to drive the connecting shaft 15 to rotate, so that the square hollow tube 3 rotates under the connection of the piston cylinder 14 and the piston rod 6 to stir materials, meanwhile, the circulating fan 9 sends high-pressure air in the kettle body 1 into an inner cavity of the square hollow tube 3 through the electromagnetic valve II 22, the hollow cylinder I16, the air inlet 17 and the hose I12 and discharges the high-pressure air through the exhaust hole 2 on the rotary square hollow tube 3, so that the gas-liquid mixing effect is better, high-pressure hydrogen in the kettle body 1 is extracted through the circulating fan 9 and sent into the hollow cylinder III 20 through the electromagnetic valve I8 and the hollow cylinder II 19, the hydrogen in the hollow cylinder III 20 is sent into the piston cylinder 14 through the exhaust valve II 23, the piston cylinder 14 rotates and reciprocates under the guide of the piston rod 6 by combining the reset action of the piston 24 and the spring 5, and the motion track of the square hollow tube 3 is adjusted, make the stirring scope of mouth style of calligraphy hollow tube 3 bigger, the material passes through the feed inlet and gets into the internal portion of cauldron, avoids the material to submerge hose one 12, makes the material react under the internal portion high pressure environment of cauldron, simultaneously, when exhaust hole 2 lasts the exhaust, the material can't pass through the inside of 2 inlet port style of calligraphy hollow tubes 3 in exhaust hole.

After the reaction finishes, discharge the material through the discharge gate, and make high pressure nozzle 7 wash the bottom region of the cauldron body 1, the rising of the horizontal plane of the internal portion of cauldron simultaneously, make circular floating plate 4 rise under the effect of buoyancy, thereby make circular floating plate 4 rise the limit round connecting axle 15 rotation below the drive of mouth style of calligraphy hollow tube 3, and under the drive of piston cylinder 14, make the cyclic annular rubber circle 18 left and right sides reciprocating motion on the circular floating plate 4, thereby make cyclic annular rubber circle 18 scrub the inner wall of the cauldron body 1 and the surface of connecting axle 15, mouth style of calligraphy sponge piece 21 scrubs the surface of mouth style of calligraphy hollow tube 3 simultaneously, the cleaning performance is better.

Claims

1. The utility model provides a reation kettle is used in methyl cyclohexanediamine production, includes the cauldron body (1), motor (11) are installed at the top of the cauldron body (1), the output pivot fixedly connected with connecting axle (15) of motor (11), and the top of connecting axle (15) run through the cauldron body (1) and with the interior roof rotary seal of the cauldron body (1), its characterized in that: the connecting shaft (15) is a hollow cylinder, two piston cylinders (14) are arranged on two sides of the connecting shaft (15), a piston rod (6) and a piston block (13) which are matched with the piston cylinders (14) are arranged in each piston cylinder (14), two ends of each piston block (13) penetrate through the piston cylinders (14), one end, close to each other, of each piston cylinder (14) is fixedly connected to the outer surface of the connecting shaft (15), the two piston blocks (13) are fixedly sleeved on the outer surfaces of the two piston rods (6) respectively, an inner cavity of each piston cylinder (14) is fixedly communicated with a second hose (23) used for conveying gas, a cavity, close to one end of the second hose (23), of each piston cylinder (14) is communicated with a vent valve (24), a spring (5) is sleeved on the outer portion of each piston rod (6), two ends of each spring (5) are fixedly connected to one end, far away from each other, of the piston rod (6) and one end, far away from each piston cylinder (14) respectively, the equal fixedly connected with of surface of every piston cylinder (14) mouth style of calligraphy hollow tube (3), the outside of every mouth style of calligraphy hollow tube (3) all is equipped with circular showy board (4), the equal fixed embedding of surface of every circular showy board (4) has two mouth style of calligraphy sponge pieces (21), and mouth style of calligraphy hollow tube (3) run through mouth style of calligraphy sponge piece (21) and contact with mouth style of calligraphy sponge piece (21), the surface of every circular showy board (4) is all fixed the annular rubber circle (18) of cup jointing.

2. The reaction kettle for producing methylcyclohexanediamine according to claim 1, characterized in that: a circulating fan (9) is installed at the top of the kettle body (1), the air inlet end of the circulating fan (9) penetrates through the kettle body (1) and extends into the kettle body (1), a hollow cylinder II (19) is sleeved outside the connecting shaft (15), the top of the hollow cylinder II (19) is rotationally sealed with the connecting shaft (15), one air outlet end of an air outlet pipe of the circulating fan (9) penetrates through the hollow cylinder II (19) and is communicated with the inner cavity of the hollow cylinder II (19), a first electromagnetic valve (8) is arranged at the air outlet end of the circulating fan (9) close to the second hollow cylinder (19), the outer surface of the connecting shaft (15) is fixedly sleeved with a hollow cylinder III (20), the top of the hollow cylinder III (20) is rotatably sealed with the hollow cylinder II (19), and one end of each hose II (23) far away from the piston cylinder (14) is communicated with the inner cavity of the hollow cylinder III (20).

3. The reaction kettle for producing methylcyclohexanediamine according to claim 2, characterized in that: the outer sleeve of connecting axle (15) is equipped with hollow cylinder one (16), and hollow cylinder one (16) and connecting axle (15) rotary seal, the top fixed connection of hollow cylinder one (16) is at the interior roof of cauldron body (1), and the bottom of hollow cylinder one (16) and the top fixed connection of hollow cylinder two (19), air inlet (17) have been seted up at the top of connecting axle (15), and air inlet (17) are linked together with the inner chamber of connecting axle (15), air inlet (17) are located the inside of hollow cylinder one (16), another end of giving vent to anger of circulating fan (9) outlet duct runs through hollow cylinder one (16) and is linked together with the inner chamber of hollow cylinder one (16), the inner chamber fixed connection of connecting axle (15) has two hose one (12), and hose one (12) keep away from the one end of connecting axle (15) and are linked together with the cavity of two exhaust holes (2) respectively, the outer surface of each square hollow pipe (3) is provided with exhaust holes (2) which are arranged at equal intervals.

4. The reaction kettle for producing methylcyclohexanediamine according to claim 1, characterized in that: the bottom of the connecting shaft (15) is fixedly connected with two guide rods (10), and the guide rods (10) are connected with the bottom of the square hollow pipe (3) in a sliding mode.

5. The reaction kettle for producing methylcyclohexanediamine according to claim 1, characterized in that: the high-pressure sprayer is characterized in that high-pressure sprayers (7) in a circumferential array are installed on the inner top wall of the kettle body (1), the high-pressure sprayers (7) are connected with an external water pipe, and the water outlet of each high-pressure sprayer (7) faces the bottom of the kettle body (1).

6. The reaction kettle for producing methylcyclohexanediamine according to claim 1, characterized in that: the top of the kettle body (1) is provided with a feed inlet, and the bottom of the kettle body (1) is provided with a discharge outlet.