CN113893728A

CN113893728A - Agitating unit for solid-liquid mixing under high viscosity condition

Info

Publication number: CN113893728A
Application number: CN202111384676.1A
Authority: CN
Inventors: 伊岩波
Original assignee: Weihai Weiliming Chemical Equipment Co ltd
Current assignee: Weihai Weiliming Chemical Equipment Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-01-07

Abstract

The invention relates to the technical field of chemical stirring, and discloses a stirring device for mixing solid and liquid under a high-viscosity condition, which comprises a stirring shaft, an upper-layer inclined blade downward-pressing stirrer, a middle-layer frame stirrer, a lower-layer scraping bottom stirrer and a fourth hub, wherein the fourth hub is fixed on the lower side of a stirring shaft body, and blades are uniformly arranged on the outer side of the fourth hub. Can destroy the surface tension among liquid molecules, thereby enhancing the effect of solid-liquid mixing.

Description

Agitating unit for solid-liquid mixing under high viscosity condition

Technical Field

The invention belongs to the technical field of chemical stirring, and particularly relates to a stirring device for mixing solid and liquid under a high-viscosity condition.

Background

With the rapid development of the domestic chemical industry in recent years, the demand of chemical stirring is more diversified and complicated, the most core component in the stirring tank is the stirrer, the stirrer is a tool for completing the physical and chemical (such as suspension, dispersion, emulsification, uniform mixing, dissolution and absorption, extraction, chemical reaction, heat transfer and the like) processes of media, and the influence on the flow pattern is related to the stirrer structure after the factors such as the shape of the reaction kettle, the material characteristics and the like are determined.

At present, in many reactions in the resin industry in China, the reaction of high-viscosity liquid and solid is mostly involved, because two phases are special, the viscosity of the liquid phase is high, and the other phase is solid, the problem of long reaction time of two mixing reactions is caused, the problem of high energy consumption is indirectly caused, and the national call for energy conservation and emission reduction is not met, so that the stirring device for mixing the solid and the liquid under the condition of high viscosity is provided.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a stirring device for mixing solid and liquid under the condition of high viscosity, which effectively solves the problem that the reaction of high-viscosity liquid and solid is mostly involved in the reactions of resin industries in China, and the problem that the reaction time is long due to the fact that two phases are special, the viscosity of the liquid phase is high, and the other phase is solid, so that the problem of high energy consumption is indirectly caused, and the stirring device does not meet the national policy requirements of energy conservation and emission reduction.

In order to achieve the purpose, the invention provides the following technical scheme: including agitator and fourth wheel hub in (mixing) shaft, upper strata oblique leaf push down agitator, middle level frame agitator, lower floor scrape, fourth wheel hub fixes the body downside at the (mixing) shaft, fourth wheel hub is located middle level frame agitator and lower floor and scrapes the looks side of agitator on, fourth wheel hub's the outside evenly is provided with the blade.

Preferably, the agitator is pushed down to upper strata oblique leaf comprises first wheel hub and first blade, the contained angle between first blade length direction and the vertical direction of first wheel hub sets up to 30 to 50 degrees between, first blade edge is sawtooth shape, the quantity of first blade can set up to 3-4 pieces, connected mode between first blade and the first wheel hub is whole welded structure, the removable mechanism of first blade or first wheel hub halving structure.

Preferably, the middle layer frame type stirrer consists of a second hub, a second blade and a support blade, the length direction of the second blade and the vertical direction of the second hub are arranged in parallel, the edge of the second blade is in a sawtooth shape, and the second blade is in an integral welding structure or a hub halving structure through the connection mode between the support blade and the second hub.

Preferably, the agitator turns over on scraping the bottom of lower floor comprises third blade, third wheel hub and pull rod, the contained angle between third blade length direction and the vertical direction of third wheel hub sets up to 45, third blade edge is sawtooth shape, and the edge shape accords with the reation kettle head, the quantity of third blade can set up to 2-3 groups, the connected mode between third blade, pull rod and the third wheel hub is whole welded structure, blade detachable structure, or wheel hub halving structure.

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

1. the invention uses the combination of the stirrer, improves and innovates the blade form of the stirrer at the same time, designs the stirring device for mixing solid and liquid under the condition of high viscosity, because the liquid viscosity in the reaction kettle is high, the flow pattern formed by the fluid rotating around the shaft is laminar flow, the surface tension among liquid molecules prevents the mixing of solid media, thus causing poor mixing effect;

2. the edge of each blade of each stirrer is designed into a tooth-shaped structure, so that the optimal design is carried out, the shearing force of the blades is increased, and the surface tension among liquid molecules can be destroyed, thereby enhancing the effect of solid-liquid mixing.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

In the drawings:

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

FIG. 2 is a schematic structural view of a middle-upper inclined blade downward-pressing stirrer according to the present invention;

FIG. 3 is a schematic view showing the construction of a middle layer frame type stirrer according to the present invention;

FIG. 4 is a schematic view of the lower turn-up agitator of the present invention;

FIG. 5 is a side view of a mid-level gate agitator in accordance with the present invention.

In the figure: 1. a stirring shaft; 2. the upper layer inclined blade presses the stirrer downwards; 2-1, leaf blades; 2-2, a hub; 3. a middle frame type stirrer; 3-1, leaf blades; 3-2, wheel hub; 3-3, supporting the blade; 4. a lower bottom scraping stirrer; 4-1, leaf; 4-2, a hub; 4-3, a pull rod and 5 a fourth hub; 5-1, paddle.

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.

Referring to fig. 1, a stirring device for mixing solid and liquid under high viscosity condition comprises a stirring shaft 1, an upper inclined blade downward-pressing stirrer 2, a middle frame type stirrer 3, a lower bottom scraping bottom stirrer 4 and a fourth hub 5, wherein the fourth hub is fixed on the lower side of the body of the stirring shaft 1, the fourth hub 5 is positioned on the viewing side of the middle frame type stirrer 3 and the lower bottom scraping bottom stirrer 4, blades 5-1 are uniformly arranged on the outer side of the fourth hub 5, the upper layer stirrer generates a downward-pressing flow pattern, the middle layer stirrer is in a strong mixing flow pattern, the lower layer stirrer is in a bottom scraping and turning-over form, a fixing medium at the bottom can be pushed to the position of the middle layer stirrer, so that solid mixing is facilitated, the bottom scraping blades can prevent high-viscosity materials from blocking a bottom discharge hole, and the combination of the three layers of stirrers can achieve good solid and liquid mixing effects, and the fourth hub 5 are arranged on the viewing side of the middle frame type stirrer 3 and the lower bottom scraping bottom stirrer 4 The paddle 5-1 is used for conveying the mixture at the lower part to the middle upper part of the stirrer through the paddle 5-1 during stirring, so as to play a role of fully mixing.

As shown in fig. 2, the stirrer is pressed down by the upper inclined blade, a large number of tests are performed on the installation angle of the first blade 2-1 and the first hub 2-2, the energy consumption and the stirring effect are balanced, and the optimal installation angle interval is found, the included angle between the length direction of the first blade 2-1 and the vertical direction of the first hub 2-2 is set to be 30-50 degrees, the edge of the first blade 2-1 is designed to be in a sawtooth shape, the shearing force of the first blade 2-1 is enhanced, and the number of the first blades 2-1 can be increased by 3-4 pieces according to the viscosity of the material.

As shown in fig. 3, the middle-layer frame type stirrer 3 is a paddle with the largest diameter among three stirring paddles, and is a paddle which plays a main mixing role, the included angle between the second blade 3-1 and the second hub 3-2 is 0 °, the discharge flow of the second blade 3-1 reaches the maximum, and the edge of the second blade 3-1 is also designed to be serrated, and is also used for enhancing the shearing function of the second blade 3-1. The second blade 3-1 is connected to the second hub 3-2 by a support blade 3-3, the edge of which is also designed as a saw-tooth, also to enhance the shear force of the second blade 3-1. The connection mode of the second hub 3-3 and the shaft can adopt an integral type, a split structure of the second hub 3-3 and a detachable structure of the second blade 3-1.

As shown in fig. 4, the lower layer bottom scraping and up-turning stirrer is characterized in that an included angle between the length direction of the third blade 4-1 and the vertical direction of the third hub 4-2 is set to be 45 degrees, the third blade is of an up-turning structure, solid materials deposited at the bottom of the kettle can be scraped away, liquid is pushed up to the middle layer stirring blade interval, the edge of the third blade 4-1 is consistent with the shape of the kettle wall, the shape of the third blade is also set to be zigzag, and the third blade 4-1 and the third hub 4-2 are connected through a pull rod 4-3 to form an integral welding structure, a third blade-1 detachable mechanism or a third hub 4-2 halving structure. The connection form between the pull rod 4-3 and the third hub 4-2 can be selected according to the structure of the reaction kettle.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the terms "comprise", "include", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, and the terms "mount", "connect", or "connect" should be interpreted broadly unless expressly specified or limited to the contrary and may be fixed or removable, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art through specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a solid-liquid mixing uses agitating unit under high viscosity condition which characterized in that: including agitator (4) and fourth wheel hub (5) on (mixing) shaft (1), upper strata oblique leaf push down agitator (2), middle level frame agitator (3), the lower floor scrapes, fourth wheel hub (5) are fixed at the body downside of (mixing) shaft (1), fourth wheel hub (5) are located middle level frame agitator (3) and the lower floor and scrape the looks side of agitator (4) on the bottom, the outside of fourth wheel hub (5) evenly is provided with paddle (5-1).

2. The stirring apparatus for solid-liquid mixing under high viscosity condition as set forth in claim 1, wherein: upper strata oblique leaf pushes down agitator (2), comprises first wheel hub (2-2) and first blade (2-1), the contained angle between first blade (2-1) length direction and the vertical direction of first wheel hub (2-2) sets up to 30 to 50 degrees between, first blade (2-1) edge is sawtooth shape, the quantity of first blade (2-1) can set up to 3-4, the connected mode between first blade (2-1) and first wheel hub (2-2) is whole welded structure, the removable mechanism of first blade (2-1) or first wheel hub (2-2) halving structure.

3. The stirring apparatus for solid-liquid mixing under high viscosity condition as set forth in claim 1, wherein: the middle-layer frame type stirrer (3) is composed of a second hub (3-2), second blades (3-1) and supporting blades (3-3), the length direction of the second blades (3-1) and the vertical direction of the second hub (3-2) are arranged in parallel, the edge of the second blades (3-1) is in a sawtooth shape, and the second blades (3-1) are in an integral welding structure or a hub halving structure through the connecting mode between the supporting blades (3-3) and the second hub (3-2).

4. The stirring apparatus for solid-liquid mixing under high viscosity condition as set forth in claim 1, wherein: the lower layer is scraped and is turned over agitator on the bottom, comprises third blade (4-1), third wheel hub (4-2) and pull rod (4-3), the contained angle between third blade (4-1) length direction and third wheel hub (4-2) vertical direction sets up to 45, third blade (4-1) edge is saw-tooth shape, and edge shape accords with the reation kettle head, the quantity of third blade (4-1) can set up to 2-3 groups, third blade (4-1), the connected mode between pull rod (4-3) and third wheel hub (4-2) are whole welded structure, blade detachable construction, or wheel hub halving structure.