CN113856530A

CN113856530A - A stirred tank for preparing tetrabromobisphenol A

Info

Publication number: CN113856530A
Application number: CN202111454196.8A
Authority: CN
Inventors: 方典科; 魏志; 潘立海; 王宝军; 杨华瑞
Original assignee: Shandong Jinyishan New Material Co ltd
Current assignee: Shandong Jinyishan New Material Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2021-12-31
Anticipated expiration: 2041-12-02
Also published as: CN113856530B

Abstract

The invention discloses a stirring kettle for preparing tetrabromobisphenol A, which relates to the technical field of stirring kettles and comprises a stirring kettle body, a cover plate and a discharging mechanism, wherein the cover plate is installed at the top of the stirring kettle body, the discharging mechanism is installed at the bottom of the stirring kettle body, a plurality of feeding pipes are installed on the cover plate, a lifting mechanism is fixed at the top of the cover plate, a transmission mechanism is rotatably installed on a lifting end of the lifting mechanism, one side of the transmission mechanism is in transmission connection with a driving mechanism, the bottom end of the transmission mechanism penetrates through the inner wall of the bottom of the cover plate and is in transmission connection with a stirring shaft, a plurality of groups of stirring mechanisms which are distributed equidistantly are installed on the circumferential outer wall of the stirring shaft, and three stirring mechanisms are in a group and are distributed circumferentially. The invention can increase the motion resistance between the stirring pipe and the reaction liquid, so that the stirring shaft can rapidly reduce the rotation speed, and the transmission resistance is reduced when the motor is restarted to drive the stirring shaft to work anticlockwise, thereby protecting the motor.

Description

A stirred tank for preparing tetrabromobisphenol A

Technical Field

The invention relates to the technical field of stirred tanks, in particular to a stirred tank for preparing tetrabromobisphenol A.

Background

Tetrabromobisphenol A is a derivative of bisphenol A, is white powder, is mainly used as an additive of plastic products, and is one of the commonly used brominated flame retardants. Tetrabromobisphenol A is prepared by bromination of bisphenol A. The method is divided into a direct bromination method, a catalytic bromination method, an oxidation bromination method and the like according to different reaction conditions. The oxybromination method is one of the most commonly used methods of preparation. The process is carried out in a solvent in the presence of hydrogen peroxide. Adding bisphenol A, n-octanol and water into a stirring kettle, stirring, controlling the temperature to be 25 ℃, dropwise adding bromine within 45min, adding hydrogen peroxide, and reacting for 10min under heat preservation. Heating to 80 ℃, and curing for 1h under heat preservation. Cooling, crystallizing, filtering, washing the filter cake with ethanol and hot water, and oven drying to obtain the final product.

The Chinese patent with publication number CN111992163A in the prior art discloses a chemical stirring reaction kettle, which comprises a shell; the upper end of the shell is provided with an end cover connected through a bolt, and the shell comprises a stirring unit, a swinging unit and a scraper; a positive and negative rotation motor is fixedly connected to the center of the end cover through a sleeve, an output shaft of the positive and negative rotation motor penetrates through the end cover and extends into the shell, and an output shaft of the positive and negative rotation motor is connected with one end of the stirring shaft; the inclined block is sleeved on an outer ring of an output shaft of the forward and reverse rotating motor, the inclined block is positioned in the sleeve, and the inclined end face of the inclined block is in rolling connection with the oscillating rod through a supporting rod arranged on the oscillating rod; two ends of the oscillating rod penetrate through a first through hole formed in the sleeve, the two ends of the oscillating rod are respectively hinged with one end of the pull rod and extend into the shell, and the other end of the pull rod is hinged with the scraper; through the cooperation between controller, stirring unit, swing unit and the scraper blade, realize the stirring to the inside raw materials of input casing to the clearance of adhering to on the casing inside wall.

However, the above-mentioned device still has the following disadvantages that when the forward and reverse rotation motor drives the stirring shaft to rotate forward and reverse, the inertia of the stirring unit causes the need of waiting in the forward and reverse rotation switching state, if the motor directly waits to influence the stirring efficiency, the motor needs to be driven in reverse rotation after the stirring unit completely slows down, and if the stirring assembly is not buffered in speed reduction, the forward and reverse rotation of the motor is directly switched instantaneously or the structure is damaged or even the stirring motor stops at the maximum speed.

Disclosure of Invention

The invention aims to provide a stirring kettle for preparing tetrabromobisphenol A, which aims to solve the technical problems that in the prior art, the reverse meshing action force between a forward half gear and a reverse bevel gear is too large in a forward and reverse switching state, and if the speed reduction buffering is not carried out on a stirring assembly, the structure is damaged, and even the stirring motor stops at the polar speed.

The invention provides a stirring kettle for preparing tetrabromobisphenol A, which comprises a stirring kettle body, a cover plate and a discharging mechanism, wherein the cover plate is arranged at the top of the stirring kettle body, the discharging mechanism is arranged at the bottom of the stirring kettle body, a plurality of feeding pipes are arranged on the cover plate, a lifting mechanism is fixed at the top of the cover plate, a transmission mechanism is rotatably arranged at the lifting end of the lifting mechanism, one side of the transmission mechanism is in transmission connection with a driving mechanism, the bottom end of the transmission mechanism penetrates through the inner wall of the bottom of the cover plate to be in transmission connection with a stirring shaft, a plurality of groups of stirring mechanisms which are distributed equidistantly are arranged on the circumferential outer wall of the stirring shaft, the three stirring mechanisms are in one group and are distributed in a circumferential manner, the stirring mechanism comprises a stirring pipe, one end of the stirring pipe is fixedly connected with the side wall of the stirring shaft, one end of the stirring pipe, which is far away from the stirring shaft, is open, and one side, which is close to the stirring shaft, in the stirring pipe, is fixedly provided with a first spring, a push ball which forms sliding fit with the inner wall of the stirring pipe is fixed at one end of the first spring, which is far away from the stirring shaft, a sliding opening is formed at the top of the stirring pipe, a turbulent flow plate is inserted in the sliding opening in a sliding manner, a guide inclined plane is arranged at one side of the turbulent flow plate, which is close to the push ball, a stretching mechanism is fixed between one side of the bottom end of the turbulent flow plate and the inner wall of the top of the stirring pipe, a driving mechanism can be matched with a transmission mechanism to drive the stirring shaft to rotate clockwise, a lifting mechanism can drive the stirring shaft in a clockwise rotation state to lift, and further the stirring mechanism on the stirring shaft can realize the lifting work while rotating and stirring work, so that the reaction liquid in the stirring kettle is subjected to omnibearing mixing work, the mixing completeness is improved, wherein the stirring pipe in the stirring mechanism and the push ball form relative motion due to the action of centrifugal force in the rotating process, the push ball moves away from the stirring shaft and stretches the first spring, the push ball slides in the stirring pipe and extrudes the guide inclined plane of the turbulent flow plate, the turbulent flow plate extends upwards from the stirring pipe under the extrusion action force, the pushing area of the turbulent flow plate can be increased in the rotating process after the turbulent flow plate extends out of the stirring pipe, the pushing strength and the mixing completeness of reaction liquid are improved, when the stirring shaft needs to rotate anticlockwise for stirring, the motor is turned off, the extending turbulent flow plate can increase the motion resistance between the stirring pipe and the reaction liquid, the stirring shaft can rapidly reduce the rotation speed, the transmission resistance is reduced when the motor is started again for anticlockwise driving the stirring shaft, the motor is protected, after the motor is turned off, the first spring drives the push ball to reset, and the turbulent flow plate moves downwards slowly due to the self gravity and stretches the stretching mechanism downwards, the turbulent plate is accommodated while the speed is reduced.

Furthermore, a plurality of shunting holes distributed at equal intervals are formed in the turbulent flow plate, a soft rubber strip which is in damping fit with the inner wall of the sliding port is embedded in one side of the turbulent flow plate, and the shunting holes can conduct shunting and cutting work on the reaction liquid after the turbulent flow plate extends out of the stirring pipe, so that the local relative movement speed of the reaction liquid passing through the shunting holes is accelerated, and the mixing reaction effect is improved.

Furthermore, the stretching mechanism comprises an extension block fixedly connected with one side of the bottom end of the turbulence plate, a second spring is fixed between the top of the extension block and the inner wall of the top of the stirring pipe, the extension block can be matched with the second spring to limit the turbulence plate so as to prevent the turbulence plate from slipping out of the stirring pipe, and in addition, the second spring plays a role in auxiliary support when the turbulence plate moves upwards, so that the turbulence plate can better slip out of the stirring pipe.

Further, set up the water conservancy diversion mouth of two symmetries on the circumference lateral wall of agitator pipe, the water conservancy diversion mouth sets up the agitator pipe is kept away from the one end of (mixing) shaft, the one end of agitator pipe is fixed with the spliced pole, the one end of spliced pole be fixed with the connecting block that the (mixing) shaft lateral wall is connected, the water conservancy diversion mouth can rotate the process at the agitator pipe and be convenient for reaction liquid and get into in the agitator pipe, push away the ball because the centrifugal force is used for outwards releasing the reaction liquid in the agitator pipe, make the reaction liquid in the agitator pipe and the solution outside the agitator pipe form and promote the collision, promote mixed effect.

Furthermore, elevating system includes that two are installed the support frid at apron top, slidable mounting has the slide in the support frid, two be fixed with the roof between the slide, the bottom of roof with be fixed with the lifter between the apron, drive mechanism rotates to be installed on the roof, the lifter drives the roof up-and-down motion, and then drives the (mixing) shaft and the rabbling mechanism of drive mechanism bottom and carry out the up-and-down motion, and the slide can cooperate the support frid to carry out spacing guide effect to the roof of up-and-down motion.

Further, the both sides of slide run through and are provided with the guide bar, the bottom of guide bar with the top fixed connection of apron, the bottom cover of guide bar is equipped with supporting spring, supporting spring's top with the bottom contact of slide, the guide bar can lead limiting displacement to the slide, and supporting spring can cushion the guard action to the downstream slide.

Furthermore, the transmission mechanism comprises a rotating shaft, the top end of the rotating shaft is rotatably arranged on the top plate, the bottom end of the rotating shaft is in transmission connection with the top end of the stirring shaft, a tooth column is fixed on the rotating shaft, a first transmission gear is meshed and transmitted on one side of the tooth post, a transmission shaft which is rotatably arranged on the cover plate is fixed at the bottom of the first transmission gear, a second transmission gear is fixed at the bottom end of the transmission shaft, one side of the second transmission gear is in transmission engagement with the driving mechanism, the actuating mechanism is including fixing motor on the apron, the output shaft of motor be fixed with the fluted disc of second drive gear meshing, the motor can drive first drive gear and rotate, and first drive gear can mesh transmission work to the tooth post of up-and-down motion at the rotation in-process, realizes that the (mixing) shaft accomplishes rotation work when the up-and-down motion work.

Furthermore, a plurality of buoyancy mechanisms are fixed on the stirring shaft, each buoyancy mechanism comprises a sleeve sleeved on the stirring shaft, limiting rings are fixed at two ends of each sleeve, a sliding ring is sleeved on each sleeve in a sliding manner, a plurality of buoyancy plates are fixed on each sliding ring, a plurality of flow guide grooves are formed in the tops of the buoyancy plates, convex strips in sliding fit with the inner walls of the sliding rings are fixed on the side walls of the sleeves, the sleeves can be matched with the limiting rings to press the buoyancy plates on the sliding rings downwards when the stirring shaft moves downwards, the sliding rings and the buoyancy plates lose the pressure of the limiting rings and float upwards when the sleeves move upwards, the upward movement speed of the buoyancy plates is accelerated due to the buoyancy effect, so that the buoyancy plates push the reaction liquid in the vertical direction, the turbulent flow mixing effect is improved, and the buoyancy plates moving upwards can conduct outward flow guide on the reaction liquid under the seating of the flow guide grooves, further improving the mixing effect.

Further, discharge mechanism is including fixing the play hopper of stirred tank body bottom, the fixed honeycomb duct that pegs graft in bottom of going out the hopper has, rotate on the inside circumference lateral wall of play hopper and install the fin that a plurality of annular distribute, one side of fin with be fixed with the third spring between the play hopper inner wall, go out the hopper and can cooperate the honeycomb duct to carry out ejection of compact work to the solution after the reaction, and the fin promotes the upset by the reaction liquid when the internal reaction solution of stirred tank carries out the mixing operation, and the reaction force of fin cooperation third spring is stirred the reaction liquid of stirred tank body bottom, improves mixed effect, avoids producing the reaction dead angle.

Furthermore, the bottom end of the side wall of the stirring kettle body is fixedly provided with a convex ring, and the bottom of the convex ring is fixedly provided with a plurality of supporting legs distributed in an annular manner.

Compared with the prior art, the invention has the beneficial effects that:

(1) in the stirring mechanism, the stirring pipe moves relative to the push ball under the action of centrifugal force in the rotating process, the push ball moves away from the stirring shaft and stretches the first spring, the push ball slides in the stirring pipe and extrudes the guide inclined plane of the turbulent flow plate, the turbulent flow plate extends upwards from the stirring pipe under the extrusion action force, the pushing area of reaction liquid can be increased in the rotating process after the turbulent flow plate extends out of the stirring pipe, the pushing strength and the mixing completeness of the reaction liquid are improved, when the stirring shaft needs to rotate anticlockwise for stirring, the motor is turned off, the extending turbulent flow plate can increase the motion resistance between the stirring pipe and the reaction liquid, so that the stirring shaft can quickly reduce the rotating speed, the transmission resistance is reduced when the motor is started again for driving the stirring shaft to work anticlockwise, and the motor is protected, after the motor is turned off, the first spring drives the push ball to reset due to the reduction of centrifugal force, and the turbulence plate slowly moves downwards due to the gravity of the turbulence plate and stretches the stretching mechanism downwards, so that the turbulence plate can be accommodated while the turbulence plate works at a reduced speed.

(2) According to the invention, the sleeve can be matched with the limiting ring to press the buoyancy plate on the sliding ring downwards when the stirring shaft moves downwards, when the sleeve moves upwards, the sliding ring and the buoyancy plate lose the pressure of the limiting ring and float upwards, and the upward movement speed of the buoyancy plate is accelerated due to the buoyancy effect, so that the buoyancy plate pushes reaction liquid in the vertical direction, the turbulent flow mixing effect is improved, and the buoyancy plate moving upwards can drain the reaction liquid outwards under the sitting of the diversion trench, so that the mixing effect is further improved.

(3) In the plate, when the reaction solution in the stirring kettle body is mixed, the reaction solution is pushed to turn over by the reaction solution, and the reaction force of the fin plate matched with the third spring is used for stirring the reaction solution at the bottom end of the stirring kettle body, so that the mixing effect is improved, and the reaction dead angle is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the lifting mechanism of the present invention;

FIG. 3 is a schematic view of the internal structure of the stirring tank body in the present invention;

FIG. 4 is a schematic perspective view of the stirring mechanism of the present invention;

FIG. 5 is a schematic sectional view of the agitation pipe of the present invention;

FIG. 6 is a schematic structural view showing a centrifugal state inside the stirring tube according to the present invention;

FIG. 7 is a schematic structural view of a buoyancy mechanism according to the present invention;

fig. 8 is a schematic structural view of the interior of the discharge hopper in the present invention.

Reference numerals:

1. a stirred tank body; 2. a cover plate; 3. a feed pipe; 4. supporting the slot plate; 5. a slide plate; 6. a top plate; 7. a lifting rod; 8. a tooth post; 9. a rotating shaft; 10. a first drive gear; 11. a drive shaft; 12. a fluted disc; 13. a motor; 14. a second transmission gear; 15. a convex ring; 16. supporting legs; 17. a guide bar; 18. a support spring; 19. a stirring shaft; 20. a stirring pipe; 21. connecting blocks; 22. a buoyancy plate; 23. a flow guide port; 24. a diversion trench; 25. connecting columns; 26. a first spring; 27. pushing the ball; 28. a turbulent flow plate; 29. a shunt hole; 30. an extension block; 31. a second spring; 32. a sliding port; 33. a sleeve; 34. a convex strip; 35. a slip ring; 36. a fin; 37. a third spring; 38. a flow guide pipe; 39. a discharge hopper.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 8, an embodiment of the present invention provides a stirred tank for preparing tetrabromobisphenol a, including a stirred tank body 1, a cover plate 2 installed on the top of the stirred tank body 1, and a discharging mechanism installed at the bottom of the stirred tank body 1, wherein the cover plate 2 is provided with a plurality of feeding pipes 3, and the reaction raw materials are fed into the stirred tank body 1 from the feeding pipes 3 in proportion;

specifically, a lifting mechanism is fixed on the top of the cover plate 2, a transmission mechanism is rotatably installed on the lifting end of the lifting mechanism, a driving mechanism is in transmission connection with one side of the transmission mechanism, the bottom end of the transmission mechanism penetrates through the inner wall of the bottom of the cover plate 2 to be in transmission connection with a stirring shaft 19, a plurality of groups of stirring mechanisms distributed equidistantly are installed on the circumferential outer wall of the stirring shaft 19, three stirring mechanisms are in one group and are distributed circumferentially, the stirring mechanism comprises a stirring pipe 20, one end of the stirring pipe 20 is fixedly connected with the side wall of the stirring shaft 19, one end of the stirring pipe 20, which is far away from the stirring shaft 19, is open, a first spring 26 is fixed on one side, which is close to the stirring shaft 19, in the stirring pipe 20, one end of the first spring 26, which is far away from the stirring shaft 19, is fixed with a push ball 27 which forms sliding fit with the inner wall of the stirring pipe 20, a sliding port 32 is formed on the top of the stirring pipe 20, and a turbulent flow plate 28 is inserted in the sliding port 32, the turbulent flow plate 28 is provided with a guide inclined plane at one side close to the push ball 27, and a stretching mechanism is fixed between one side of the bottom end of the turbulent flow plate 28 and the inner wall of the top of the stirring pipe 20.

The specific working method comprises the following steps: the driving mechanism can cooperate with the transmission mechanism to drive the stirring shaft 19 to rotate clockwise, and the lifting mechanism can drive the stirring shaft 19 in a clockwise rotation state to lift, so that the stirring mechanism on the stirring shaft 19 can rotate and stir simultaneously, and lift is performed, so as to perform all-around mixing work on the reaction liquid in the stirring kettle body 1, and improve the mixing completeness, wherein the stirring pipe 20 in the stirring mechanism forms relative motion with the thrust ball 27 due to the action of centrifugal force in the rotation process, the thrust ball 27 moves away from the stirring shaft 19 and stretches the first spring 26, the thrust ball 27 slides in the stirring pipe 20 and extrudes the guide inclined plane of the turbulence plate 28, the turbulence plate 28 extends upwards from the stirring pipe 20 under the extrusion action force, and the thrust area of the reaction liquid can be increased in the rotation process after the turbulence plate 28 extends from the stirring pipe 20, the pushing strength and the mixing completeness of the reaction liquid are improved, when the stirring shaft 19 needs to rotate anticlockwise for stirring, the motor 13 is turned off, the extending turbulence plate 28 can increase the motion resistance between the stirring pipe 20 and the reaction liquid, the stirring shaft 19 can rapidly reduce the rotation speed, the transmission resistance is reduced when the motor 13 is started again for carrying out the anticlockwise driving work of the stirring shaft 19, the motor 13 is protected, after the motor 13 is turned off, the first spring 26 drives the push ball 27 to reset due to the reduction of the centrifugal force, the turbulence plate 28 slowly moves downwards due to the self gravity and stretches the stretching mechanism downwards, and the storage work of the turbulence plate 28 is carried out while the speed is reduced.

Specifically, a plurality of distributing holes 29 distributed at equal intervals are formed in the turbulent flow plate 28, a soft rubber strip which forms damping fit with the inner wall of the sliding opening 32 is embedded in one side of the turbulent flow plate 28, and the distributing holes 29 can distribute and cut reaction liquid after the turbulent flow plate 28 extends out of the stirring pipe 20, so that the local relative movement speed of the reaction liquid passing through the distributing holes 29 is accelerated, and the mixing reaction effect is improved.

Specifically, the stretching mechanism comprises an extension block 30 fixedly connected with one side of the bottom end of the turbulent flow plate 28, a second spring 31 is fixed between the top of the extension block 30 and the inner wall of the top of the stirring pipe 20, the extension block 30 is matched with the connecting acting force generated by the second spring 31 and the supporting acting force of the push balls 27 on the guide inclined planes on the turbulent flow plate 28 to achieve the purpose of limiting the two sides of the turbulent flow plate 28, and in addition, the second spring 31 plays an auxiliary supporting role when the turbulent flow plate 28 moves upwards, so that the turbulent flow plate 28 can better slide out of the stirring pipe 20.

Specifically, set up the water conservancy diversion mouth 23 of two symmetries on the circumference lateral wall of agitator tube 20, water conservancy diversion mouth 23 sets up the one end of keeping away from (mixing) shaft 19 at agitator tube 20, the one end of agitator tube 20 is fixed with spliced pole 25, the one end of spliced pole 25 is fixed with the connecting block 21 of being connected with (mixing) shaft 19 lateral wall, water conservancy diversion mouth 23 can be in agitator tube 20 rotation process be convenient for reaction liquid gets into agitator tube 20, push ball 27 outwards releases the reaction liquid in the agitator tube 20 because of the centrifugal force effect, make the reaction liquid in the agitator tube 20 and the solution outside the agitator tube 20 form and promote the collision, promote mixed effect.

Specifically, elevating system includes that two are installed at the support frid 4 at 2 tops of apron, slidable mounting has slide 5 in the support frid 4, be fixed with roof 6 between two slide 5, be fixed with lifter 7 between the bottom of roof 6 and the apron 2, drive mechanism rotates and installs on roof 6, lifter 7 drives 6 up-and-down motion of roof, and then drive mechanism's (mixing) shaft 19 and the rabbling mechanism of drive mechanism bottom carry out the up-and-down motion, slide 5 can cooperate support frid 4 to carry out spacing guiding action to the roof 6 of up-and-down motion.

Specifically, slide 5's both sides are run through and are provided with guide bar 17, and guide bar 17's bottom and apron 2's top fixed connection, guide bar 17's bottom cover are equipped with supporting spring 18, and supporting spring 18's top and slide 5's bottom contact, guide bar 17 can lead limiting displacement to slide 5, and supporting spring 18 can cushion the guard action to downstream slide 5.

Specifically, drive mechanism includes pivot 9, the top of pivot 9 is rotated and is installed on roof 6, the bottom of pivot 9 is connected with the top transmission of (mixing) shaft 19, be fixed with tooth post 8 in the pivot 9, the meshing transmission of one side of tooth post 8 has first drive gear 10, the bottom of first drive gear 10 is fixed with rotates the transmission shaft 11 of installing on apron 2, the bottom mounting of transmission shaft 11 has second drive gear 14, one side of second drive gear 14 and the driving mechanism transmission meshing, driving mechanism is including fixing the motor 13 on apron 2, the output shaft of motor 13 is fixed with the fluted disc 12 with the meshing of second drive gear 14, motor 13 can drive first drive gear 10 and rotate, first drive gear 10 can carry out meshing transmission work to the tooth post 8 of up-and-down motion in the rotation process, realize that the (mixing) shaft 19 accomplishes rotation work in the time of up-and-down motion work.

Specifically, a plurality of buoyancy mechanisms are fixed on the stirring shaft 19, each buoyancy mechanism comprises a sleeve 33 sleeved on the stirring shaft 19, limiting rings are fixed at two ends of each sleeve 33, a sliding ring 35 is sleeved on each sleeve 33 in a sliding manner, a plurality of buoyancy plates 22 are fixed on each sliding ring 35, a plurality of guide grooves 24 are formed in the tops of the buoyancy plates 22, convex strips 34 in sliding fit with the inner walls of the sliding rings 35 are fixed on the side walls of the sleeves 33, the sleeves 33 can be matched with the limiting rings to press the buoyancy plates 22 on the sliding rings 35 downwards when the stirring shaft 19 moves downwards, when the sleeves 33 move upwards, the sliding rings 35 and the buoyancy plates 22 lose the pressure of the limiting rings and float upwards, due to the buoyancy effect, the upward movement speed of the buoyancy plates 22 is increased, so that the buoyancy plates 22 push reaction liquid in the vertical direction, the turbulent flow mixing effect is improved, the buoyancy plates 22 moving upwards can sit in the guide grooves 24 to conduct outward flow guiding on the reaction liquid, further improving the mixing effect.

Specifically, discharge mechanism is including fixing the play hopper 39 in the stirred tank body 1 bottom, the fixed honeycomb duct 38 of pegging graft in bottom of going out hopper 39, rotate on the inside circumference lateral wall of going out hopper 39 and install the fin 36 of a plurality of annular distributions, be fixed with third spring 37 between one side of fin 36 and the play hopper 39 inner wall, it can cooperate honeycomb duct 38 to carry out ejection of compact work to the solution after the reaction to go out hopper 39, and fin 36 is promoted the upset by the reaction liquid when the reaction solution carries out the mixing operation in stirred tank body 1, fin 36 cooperates the reaction force of third spring 37 to stir the reaction liquid of stirred tank body 1 bottom, improve the mixed effect, avoid producing the reaction dead angle.

Specifically, the bottom end of the side wall of the stirring kettle body 1 is fixed with a convex ring 15, and the bottom of the convex ring 15 is fixed with a plurality of supporting legs 16 distributed in an annular shape.

The specific working method comprises the following steps: the reaction raw materials are proportionally put into the stirring kettle body 1 from the feeding pipe 3, the driving mechanism can be matched with the transmission mechanism to drive the stirring shaft 19 to rotate clockwise, the lifting mechanism can drive the stirring shaft 19 to lift in a clockwise rotation state, so that the stirring mechanism on the stirring shaft 19 can realize the lifting work while rotating and stirring work, the reaction liquid in the stirring kettle body 1 is subjected to all-round mixing work, the mixing completeness is improved, wherein the stirring pipe 20 in the stirring mechanism and the push ball 27 form relative motion due to the action of centrifugal force in the rotating process, the push ball 27 moves away from the stirring shaft 19 and stretches the first spring 26, the push ball 27 slides in the stirring pipe 20 and extrudes the guide inclined plane of the turbulent flow plate 28, the turbulent flow plate 28 extends upwards from the stirring pipe 20 under the extrusion action force, the turbulent flow plate 28 can increase the pushing area of the reaction liquid in the rotating process after extending from the stirring pipe 20, the pushing strength and the mixing completeness of the reaction liquid are improved, when the stirring shaft 19 needs to rotate anticlockwise for stirring, the motor 13 is closed, the extending turbulent plate 28 can increase the motion resistance between the stirring pipe 20 and the reaction liquid, so that the stirring shaft 19 can rapidly reduce the rotation speed, the transmission resistance is reduced when the motor 13 is started again for carrying out the anticlockwise driving work of the stirring shaft 19, the motor 13 is protected, after the motor 13 is closed, due to the reduction of centrifugal force, the first spring 26 drives the push ball 27 to reset, the turbulent plate 28 slowly moves downwards due to the self gravity and stretches the stretching mechanism downwards, the accommodating work of the turbulent plate 28 is carried out while the speed is reduced, in addition, the sleeve 33 can be matched with the limit ring to press the buoyancy plate 22 on the slip ring 35 downwards when the stirring shaft 19 moves downwards, when the sleeve 33 moves upwards, the pressure of the limit rings of the slip ring 35 and the buoyancy plate 22 is lost and floats upwards, because buoyancy effect, buoyancy plate 22 upward movement speed accelerates for buoyancy plate 22 carries out ascending promotion in vertical side to the reaction liquid, improves turbulent flow and mixes the effect, and upward movement's buoyancy plate 22 can be sat down at guiding gutter 24 and carry out outside drainage effect to the reaction liquid.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stirred tank for preparing tetrabromobisphenol A, include the stirred tank body (1) and install apron (2) at stirred tank body (1) top and install the discharge mechanism of stirred tank body (1) bottom, install a plurality of inlet pipes (3), its characterized in that on apron (2): the top of apron (2) is fixed with elevating system, elevating system's lift is served and is rotated and install drive mechanism, drive mechanism's one side transmission is connected with actuating mechanism, drive mechanism's bottom is passed the bottom inner wall transmission of apron (2) is connected with (mixing) shaft (19), install the stirring mechanism and the stirring mechanism three of multiunit equidistance distribution on the circumference outer wall of (mixing) shaft (19) and be a set of and be the circumference and distribute, stirring mechanism includes agitator tube (20), the one end of agitator tube (20) with the lateral wall fixed connection of (mixing) shaft (19), the one end that agitator tube (20) kept away from (mixing) shaft (19) is uncovered, be close to in agitator tube (20) one side of (mixing) shaft (19) is fixed with first spring (26), the one end that first spring (26) kept away from (mixing) shaft (19) is fixed with the ball (27) that forms sliding fit with agitator tube (20) inner wall, the top of the stirring pipe (20) is provided with a sliding opening (32), a turbulent flow plate (28) is inserted in the sliding opening (32) in a sliding mode, one side, close to the push ball (27), of the turbulent flow plate (28) is provided with a guide inclined plane, and a stretching mechanism is fixed between one side of the bottom end of the turbulent flow plate (28) and the inner wall of the top of the stirring pipe (20).

2. The stirred tank of claim 1 for the preparation of tetrabromobisphenol a, wherein: the turbulent flow plate (28) is provided with a plurality of flow distribution holes (29) distributed at equal intervals, and one side of the turbulent flow plate (28) is embedded with a soft rubber strip which forms damping fit with the inner wall of the sliding opening (32).

3. The stirred tank of claim 2 for the preparation of tetrabromobisphenol a, wherein: the stretching mechanism comprises an extension block (30) fixedly connected with one side of the bottom end of the turbulent flow plate (28), and a second spring (31) is fixed between the top of the extension block (30) and the inner wall of the top of the stirring pipe (20).

4. The stirred tank of claim 3 for the preparation of tetrabromobisphenol A, wherein: set up two symmetrical water conservancy diversion mouth (23) on the circumference lateral wall of agitator pipe (20), water conservancy diversion mouth (23) set up agitator pipe (20) are kept away from the one end of (mixing) shaft (19), the one end of agitator pipe (20) is fixed with spliced pole (25), the one end of spliced pole (25) be fixed with connecting block (21) that (mixing) shaft (19) lateral wall is connected.

5. The stirred tank of claim 1 for the preparation of tetrabromobisphenol a, wherein: elevating system includes that two are installed support frid (4) at apron (2) top, slidable mounting has slide (5) in support frid (4), two be fixed with roof (6) between slide (5), the bottom of roof (6) with be fixed with lifter (7) between apron (2), drive mechanism rotates and installs on roof (6).

6. The stirred tank of claim 5 for the preparation of tetrabromobisphenol A, wherein: the both sides of slide (5) are run through and are provided with guide bar (17), the bottom of guide bar (17) with the top fixed connection of apron (2), the bottom cover of guide bar (17) is equipped with supporting spring (18), the top of supporting spring (18) with the bottom contact of slide (5).

7. The stirred tank of claim 5 for the preparation of tetrabromobisphenol A, wherein: the transmission mechanism comprises a rotating shaft (9), the top end of the rotating shaft (9) is rotatably arranged on the top plate (6), the bottom end of the rotating shaft (9) is in transmission connection with the top end of the stirring shaft (19), a toothed column (8) is fixed on the rotating shaft (9), a first transmission gear (10) is meshed and driven at one side of the toothed column (8), a transmission shaft (11) rotatably arranged on the cover plate (2) is fixed at the bottom of the first transmission gear (10), a second transmission gear (14) is fixed at the bottom end of the transmission shaft (11), one side of the second transmission gear (14) is in transmission engagement with the driving mechanism, the driving mechanism comprises a motor (13) fixed on the cover plate (2), a fluted disc (12) meshed with the second transmission gear (14) is fixed on an output shaft of the motor (13).

8. The stirred tank of claim 1 for the preparation of tetrabromobisphenol a, wherein: be fixed with a plurality of buoyancy mechanisms on (mixing) shaft (19), buoyancy mechanism establishes including the cover sleeve pipe (33) on (mixing) shaft (19), the both ends of sleeve pipe (33) are fixed with the spacing ring, sliding sleeve is equipped with sliding ring (35) on sleeve pipe (33), be fixed with a plurality of buoyancy boards (22) on sliding ring (35), a plurality of guiding gutters (24) have been seted up at the top of buoyancy board (22), be fixed with on the lateral wall of sleeve pipe (33) with sliding ring (35) inner wall forms sliding fit's sand grip (34).

9. The stirred tank of claim 1 for the preparation of tetrabromobisphenol a, wherein: discharge mechanism is including fixing discharge hopper (39) in the stirred tank body (1) bottom, the fixed grafting in bottom of discharge hopper (39) has honeycomb duct (38), rotate on the inside circumference lateral wall of discharge hopper (39) and install fin (36) of a plurality of annular distributions, one side of fin (36) with be fixed with third spring (37) between discharge hopper (39) inner wall.

10. The stirred tank of claim 1 for the preparation of tetrabromobisphenol a, wherein: the lateral wall bottom mounting of stirred tank body (1) has bulge loop (15), the bottom of bulge loop (15) is fixed with a plurality of supporting legs (16) that the annular distributes.