CN220514142U

CN220514142U - Flow-through hole type baffle suitable for multilayer stirring paddle

Info

Publication number: CN220514142U
Application number: CN202321999942.6U
Authority: CN
Inventors: 李巍; 郭方; 朱丹; 侯集
Original assignee: Dalian Wankang Industrial Technology Co ltd
Current assignee: Dalian Wankang Industrial Technology Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-02-23
Anticipated expiration: 2033-07-27

Abstract

The utility model discloses an overflow hole type baffle suitable for a multilayer stirring paddle, which is arranged in a kettle type reactor, wherein the kettle type reactor comprises a vertical kettle body, a driving device and a stirring shaft; the vertical kettle body is internally provided with a containing cavity, the top of the vertical kettle body is provided with the driving device, the driving device is connected with one end part of the stirring shaft and drives the stirring shaft to rotate in the containing cavity, and the outer wall of the stirring shaft is provided with a plurality of layers of stirring paddles; a plurality of layers of baffle assemblies are arranged on the inner side wall of the vertical kettle body along the length direction of the vertical kettle body, and the baffle assemblies and the stirring paddles are mutually staggered; each layer of baffle assembly comprises a plurality of baffles uniformly distributed along the circumferential direction, the upper end and the lower end of each baffle close to the stirring shaft are respectively higher than the upper end and the lower end of the stirring shaft, a plurality of through holes are formed in the end face of each baffle, and the baffles are matched with the shearing motion of the stirring paddles, so that the fluid motion becomes more disordered, and the mixing process is accelerated.

Description

Flow-through hole type baffle suitable for multilayer stirring paddle

Technical Field

The utility model relates to the technical field of chemical reactors, in particular to an overflow hole type baffle suitable for a multi-layer stirring paddle.

Background

The reactor is equipment for realizing the reaction process, is widely applied to various industries such as chemical industry, oil refining and pharmacy, in the stirring process of the reactor, in order to improve the use efficiency of the reactor, a plurality of auxiliary devices are usually added, a baffle plate is an important auxiliary device, when the viscosity of fluid is lower, the baffle plate is arranged in the reactor to solve the swirling problem of a stirred object in the stirring process of the stirrer, the tangential velocity of the fluid is limited by the baffle plate to increase the axial and radial velocity components, the rotating motion of the fluid is changed into the vertical overturning motion, the vortex is eliminated, and meanwhile, the effective utilization rate of the applied power is improved.

However, when the viscosity of the fluid is high, the effect of the conventional baffle on the axial and radial speeds of the fluid is not obvious, and the problem of uneven mixing of the fluid still exists. Therefore, there is a need for a baffle with a simple structure and higher shearing efficiency, which allows more disordered fluid movement and accelerates the mixing process.

Disclosure of Invention

The utility model provides an overflow hole type baffle suitable for a multi-layer stirring paddle, which aims to solve the technical problem of lower shearing efficiency of the existing baffle.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

an overflow hole type baffle suitable for a multi-layer stirring paddle is arranged in a kettle type reactor, and the kettle type reactor comprises a vertical kettle body, a driving device and a stirring shaft; the vertical kettle body is internally provided with a containing cavity, the top of the vertical kettle body is provided with the driving device, the driving device is connected with one end part of the stirring shaft and drives the stirring shaft to rotate in the containing cavity, and a plurality of layers of stirring paddles are uniformly arranged on the outer wall of the stirring shaft at intervals; a plurality of layers of baffle assemblies are arranged on the inner side wall of the vertical kettle body along the length direction of the vertical kettle body, and the baffle assemblies and the stirring paddles are staggered; each layer of baffle assembly comprises a plurality of baffles uniformly distributed along the circumferential direction, the upper end and the lower end of each baffle, which are close to the stirring shaft, are respectively higher than the upper end and the lower end of the stirring shaft, which are far away from the stirring shaft, and a plurality of through holes are formed in the end faces of the baffles.

Further, each baffle is close to the stirring paddles on the upper side and the lower side in the length direction and the width direction.

Further, the through holes are round through holes distributed in a staggered mode.

Further, the baffle is installed on the inner side wall of the vertical kettle body in a screw connection or buckle connection mode.

Further, the driving device comprises a gear reduction box and a motor, the motor is connected with the stirring shaft through the gear reduction box, and the stirring shaft is driven to rotate so as to drive the stirring paddles to rotate relative to the baffle plate assemblies.

Further, the bottom of the vertical kettle body is provided with a bottom feed inlet, the side wall of the top is provided with a discharge outlet, the end part of the stirring shaft, which is close to the bottom feed inlet, is provided with a bottom stirring paddle, and the stirring shaft is provided with a top stirring paddle at a position corresponding to the lower side of the discharge outlet.

The beneficial effects are that: according to the utility model, the inner side wall of the vertical kettle body is uniformly provided with the baffle plate assemblies, each baffle plate assembly comprises the baffle plates which are uniformly distributed, the upper end part and the lower end part of each baffle plate, which are close to the stirring shaft, are respectively higher than the upper end part and the lower end part, which are far away from the stirring shaft, so that the fluid moves upwards to uniformly mix the fluid, the through holes for guiding the flow are formed in each baffle plate, the shearing movement of the stirring paddles is matched, the fluid vortex generated by stirring of the stirring paddles is guided and crushed, the horizontal movement of the fluid is changed into complex three-dimensional flow, the axial and radial speeds of the fluid are increased, the fluid movement is disordered, the mixing time of a reaction system is shortened, the reaction process is accelerated, and the shearing efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of an overflow aperture baffle suitable for use in a multi-layer stirring paddle in accordance with the present utility model;

fig. 2 is a schematic structural diagram of a vertical kettle body in the utility model.

In the figure: 1. a vertical kettle body; 11. a bottom feed inlet; 12. a discharge port; 13. a catalyst feed port; 14. a thermally conductive gas outlet; 15. a first side feed inlet; 16. a second side feed port; 17. a standby feed inlet; 18. a first thermally conductive gas inlet; 19. a second thermally conductive gas inlet; 2. a driving device; 21. a gear reduction box; 22. a motor; 3. a stirring shaft; 31. stirring paddles; 311. bottom stirring paddles; 312. a top layer stirring paddle; 4. a baffle assembly; 41. and a baffle.

A. A first temperature measurement point; B. a second temperature measuring point; C. a third temperature measuring point; D. a fourth temperature measuring point; E. and a fifth temperature measuring point.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment provides an overflow hole type baffle suitable for a multi-layer stirring paddle, which is arranged in a kettle type reactor as shown in fig. 1 and 2, wherein the kettle type reactor comprises a vertical kettle body 1, a driving device 2 and a stirring shaft 3; a containing cavity is formed in the vertical kettle body 1, the driving device 2 is arranged at the top of the vertical kettle body, the driving device 2 is connected with one end of the stirring shaft 3 and drives the stirring shaft 3 to rotate in the containing cavity, and a plurality of layers of stirring paddles 31 are uniformly arranged on the outer wall of the stirring shaft 3 at intervals; a plurality of layers of baffle assemblies 4 are arranged on the inner side wall of the vertical kettle body 1 along the length direction of the vertical kettle body 1, and the baffle assemblies 4 and the stirring paddles 31 of the layers are staggered; each layer of baffle assembly 4 comprises a plurality of baffles 41 uniformly distributed along the circumferential direction, the upper end and the lower end of each baffle 41 close to the stirring shaft 3 are respectively higher than the upper end and the lower end of each baffle which are far away from the stirring shaft 3, and a plurality of through holes are formed in the end faces of the baffles 41.

Specifically, as shown in fig. 1, the stirring paddle 31 is driven to rotate by the stirring shaft 3, the stirring paddle 31 drives fluid in the vertical kettle body 1 to move, and meanwhile, the stirring paddle 31 and a plurality of baffles 41 in the baffle assemblies 4 rotate relatively, so that efficient shearing of materials is realized.

In this embodiment, each baffle 41 is in a parallelogram structure, and when in installation, the upper and lower ends of each baffle 41, which are close to the stirring shaft 3, are respectively higher than the upper and lower ends, which are far away from the stirring shaft 3, because each layer of stirring paddles 31 move obliquely upwards along the baffle 41 under the action of the inner wall of the vertical kettle body 1 and the baffle 41 when cutting fluid, and under the continuous action of the stirring paddles 31, the fluid needs to move to the highest position of the current baffle 41 and then slides over the current baffle 41 to the next baffle 41, each baffle 41 is set into a parallelogram structure, the time sequence of the fluid at different positions of the baffle 41 over the current baffle 41 is changed, the movement process is repeated, the fluid flows can be uniformly mixed with each other, and each baffle 41 is arranged at intervals along the length direction of the vertical kettle body 1, so that the flow pattern, the speed and the direction of the fluid are further changed, the vortex phenomenon is avoided, the mixing efficiency is effectively improved, the better stirring effect is achieved in a shorter time, and the product is more stable.

The end face of the baffle 41 in this embodiment is provided with a plurality of circular through holes distributed in a staggered manner. Specifically, under the effect of the through holes, the shearing of the fluid is favorably increased, so that the shearing efficiency and the shearing effect of the fluid are further improved, and the particle size of the material can be smaller and more uniform in a shorter time under the same stirring condition. When the multilayer stirring paddle 31 drives fluid to perform rotational flow, the fluid inevitably performs layered movement, the baffle space can be fully utilized by staggered arrangement of the through holes, the fluid flowing form is more changeable, the shearing efficiency is increased, and the mixing efficiency is improved.

Each of the baffles 41 is adjacent to the paddles 31 on the upper and lower sides adjacent to each other in the longitudinal direction and the width direction.

Specifically, by increasing the size of the baffle 41, the baffle 41 is made to be as close to the stirring paddles 31 adjacent to the upper and lower sides as possible, so that the paddles of the stirring paddles 31 can be quickly contacted with the baffle 41 upon rotation of the fluid, and a good mixing effect is achieved.

In this embodiment, preferably, the number of baffle units 4 is 4, each baffle unit comprises 3-6 fast baffles 41, when one baffle 41 is provided, the improvement of the stirring shear rate and the improvement of the flow pattern capacity obtained under the working condition of high viscosity laminar flow are relatively limited; when more than six baffles 4 are arranged, the improvement of the stirring shearing rate and the improvement of the flow pattern capacity obtained under the working condition of high viscosity laminar flow are not high due to the relatively dense baffles; when 3-6 baffles 4 are arranged, the improvement of the stirring shear rate and the improvement of the flow pattern capacity obtained under the working condition of high-viscosity laminar flow are obvious, and the cost performance is higher.

Specifically, baffle 41 is installed in vertical cauldron body 1 through detachable mounting means for can enough increase or reduce the quantity of baffle 41 according to actual demand, still convenient to detach back washs the inner wall of baffle 41 and vertical cauldron body 1. And in actual use, the baffle 41 is also convenient to replace independently according to the fluid with different viscosity, select baffle 41 with different angles, make the fluid with high and low viscosity fully participate in mixing, when the fluid viscosity is less, do not have strict requirements on fluid mixing speed, select baffle 41 with inclination direction and tangent line of stirring paddle 31 rotary motion to form right angle or obtuse angle, make the resistance that the fluid produced to stirring shaft 3 less, when the operating mode requirement is not so high, protect stirring paddle 31 and stirring shaft 3, reduce maintenance cost, simultaneously if the fluid stays in vertical kettle 1 for a short time, when the requirement is mixed fast, the inclination direction of baffle 41 and tangent line of stirring paddle 31 rotary motion are acute angles, so when stirring paddle 31 carries fluid to carry out rotary motion and meet the obstruction of baffle 41, baffle 41 can make the fluid form tiny vortex motion at baffle 41 and the inner wall of vertical kettle 1, thereby promote the flow capacity of fluid, make it participate in the mixing process more quickly. It should be noted that, the baffle 41 may be mounted on the inner side wall of the vertical kettle body 1 by a screw connection, a snap connection or other detachable manners.

Specifically, as shown in fig. 1, the driving device 2 includes a gear reduction box 21 and a motor 22, and the motor 22 is connected with the stirring shaft 3 through the gear reduction box 21, drives the stirring shaft 3 to rotate, and can adjust the rotation direction and the rotation speed of the stirring shaft 3, so as to drive the stirring paddle 31 to rotate relative to the baffle assemblies 4 of a plurality of layers.

Specifically, as shown in fig. 2, the bottom of the vertical kettle body 1 is provided with a bottom feed inlet 11 and a catalyst feed inlet 13, the top side wall is provided with a discharge outlet 12 and a heat conducting gas outlet 14, the middle part is provided with a first side feed inlet 15, a second side feed inlet 16, a standby feed inlet 17, a first heat conducting gas inlet 18 and a second heat conducting gas inlet 19, materials enter the reactor from the bottom feed inlet 11 and the side feed inlet, and the catalyst enters the reactor from the catalyst feed inlet 13, and is discharged from the discharge outlet 12 after being fully reacted by stirring and mixing.

In this embodiment, five layers of stirring paddles are provided together, a bottom layer stirring paddle 311 is installed at the end of the stirring shaft 3, which is close to the bottom feed inlet 11, two layers of stirring paddles, three layers of stirring paddles and four layers of stirring paddles are sequentially arranged from bottom to top along the direction, which is far away from the bottom feed inlet 11, a top layer stirring paddle 312 is installed at the position, corresponding to the lower side of the discharge hole 12, of the stirring shaft 3 in the horizontal direction, and the stirring shaft 3 is driven to rotate by a motor 22, so that the five layers of stirring paddles 31 can be driven to rotate relative to a plurality of layers of baffle assemblies 4.

In this embodiment, as shown in fig. 2, the tank reactor further includes a heat tracing bypass system, the heat tracing bypass system includes a heat tracing bypass, the heat tracing bypass is spirally wound on the outer wall of the vertical tank body 1, the heat conducting gas outlet 14, the first heat conducting gas inlet 18 and the second heat conducting gas inlet 19 are arranged on the heat tracing bypass, the outer side wall of the vertical tank body 1 is further provided with a first temperature measuring point a, a second temperature measuring point B, a third temperature measuring point C, a fourth temperature measuring point D and a fifth temperature measuring point E of the reactor in a staggered manner, and heat conduction is performed to liquefy the heat conducting gas in the heat tracing bypass, and the heat conducting gas is discharged from the heat conducting gas outlet 14 at the top to perform a heat insulation function for the reactor. The inserted thermocouples or thermal resistors are arranged on the temperature measuring points A, B, C, D and E of the reactor, penetrate into the vertical kettle body 1 and are connected with an external workstation, and the reaction progress inside the reactor is indirectly judged by monitoring the temperature gradient distribution inside the reactor at any time.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The overflow hole type baffle plate suitable for the multilayer stirring paddles is arranged in the kettle type reactor and is characterized by comprising a vertical kettle body (1), a driving device (2) and a stirring shaft (3);

the vertical kettle body (1) is internally provided with a containing cavity, the top of the vertical kettle body is provided with a driving device (2), the driving device (2) is connected with one end part of the stirring shaft (3) and drives the stirring shaft (3) to rotate in the containing cavity, and a plurality of layers of stirring paddles (31) are uniformly arranged on the outer wall of the stirring shaft (3) at intervals;

a plurality of layers of baffle assemblies (4) are arranged on the inner side wall of the vertical kettle body (1) along the length direction of the vertical kettle body (1), and the positions of the baffle assemblies (4) and the stirring paddles (31) are staggered;

each layer of baffle assembly (4) comprises a plurality of baffles (41) which are uniformly distributed along the circumferential direction, the upper end and the lower end of each baffle (41) close to the stirring shaft (3) are respectively higher than the upper end and the lower end of each stirring shaft (3), and a plurality of through holes are formed in the end faces of each baffle (41).

2. The flow-through hole baffle plate for multi-layer stirring paddles according to claim 1, wherein each baffle plate (41) is adjacent to the stirring paddles (31) on the upper and lower sides in the length direction and the width direction.

3. The flow-through aperture baffle for a multi-layer stirring paddle of claim 1 wherein the through apertures are circular through apertures in staggered distribution.

4. The flow-through aperture baffle for a multi-layer stirring paddle according to claim 2, wherein the baffle (41) is mounted on the inner side wall of the vertical kettle body (1) by means of screw connection or snap connection.

5. The flow-through aperture baffle for a multi-layer stirring paddle according to claim 4, characterized in that the driving device (2) comprises a gear reduction box (21) and a motor (22), the motor (22) is connected with the stirring shaft (3) through the gear reduction box (21), and the stirring paddle (31) is driven to rotate relative to a plurality of layers of baffle assemblies (4) through driving the stirring shaft (3) to rotate.

6. The overflow hole baffle suitable for the multilayer stirring paddle according to any one of claims 1 to 4, characterized in that a bottom feed inlet (11) is arranged at the bottom of the vertical kettle body (1), a discharge outlet (12) is arranged on the side wall of the top, a bottom stirring paddle (311) is arranged at the end part, close to the bottom feed inlet (11), of the stirring shaft (3), and a top stirring paddle (312) is arranged at a position, corresponding to the lower side of the discharge outlet (12), of the stirring shaft (3).