CN202460510U - Multi-blade stirrer - Google Patents

Abstract

The utility model relates to a stirrer, in particular to a multi-blade stirrer suitable for a system containing solid materials, which includes a stirring shaft, the outer surface of which is provided with a ribbon blade, and the ribbon blade is in the form of a spiral Shape, the propeller blades surround the outer surface of the stirring shaft and extend from the top of the stirring shaft to the end of the stirring shaft, the stirring shaft at the interval between the propeller blades and the bottom end of the stirring shaft are connected with transverse torsion blades, so The twist angle of the twisted blade is 180°. The combination of screw blades and torsion blades makes the materials more evenly mixed under the action of radial flow and axial flow. The utility model has the advantages of simple structure, wide application range, low cost and easy processing and manufacturing.

Description

A multi-blade stirrer

technical field

The utility model relates to a stirrer, in particular to a multi-blade stirrer suitable for a system containing solid materials, which belongs to the technical field of chemical equipment.

Background technique

Agitators are widely used in chemical, food, light industry, pharmaceutical and other fields. Under the action of the agitator, it is beneficial to the uniform dispersion and mixing of materials in liquid-liquid, gas-liquid and other systems, and at the same time, the mass and heat transfer of the reaction system is enhanced, which is conducive to the progress of the reaction, and at the same time avoids local overheating in the system. In industry, agitators are often selected according to different reactions and material characteristics. Common agitator types include: propeller agitator, turbine agitator, paddle agitator, anchor agitator, ribbon agitator, etc. .

For the mixing of high-viscosity materials, whether the shape of the agitator is reasonable is very important. Ordinary agitators generally use paddles at the end of the agitator shaft. This kind of agitator is good for mixing thin materials, but for high-viscosity materials, due to the poor fluidity of viscous materials, the paddles of the agitator The rotation of the blade can only stir the material at the bottom, and the mixing of the material up and down is not good, which affects the mixing effect of the whole material.

Chinese patent CN2430211Y announces a kind of wall-scraping agitator, which is suitable for the mixing of two-phase materials with a large difference in density, but it is not suitable for the mixing of high-viscosity materials because there is a tie bar between the stirring frame and the scraper.

Contents of the invention

In order to solve the above technical deficiencies, the utility model provides a multi-blade stirrer with simple structure, large stirring space, suitable for solid material system and high stirring speed.

The utility model is achieved through the following measures:

A multi-blade stirrer, comprising a stirring shaft, the outer surface of the stirring shaft is provided with a screw blade, and the screw blade is in a spiral shape, and the screw blade surrounds the outer surface of the stirring shaft and from the stirring The top of the shaft extends to the end of the stirring shaft, and the stirring shaft at the distance between the propeller blades and the bottom end of the stirring shaft are connected with transverse torsion blades, and the torsion angle of the torsion blades is 180°. The twisted blade is formed by twisting one end of the straight blade 180° to one side.

Preferably, there are three twisted blades at the bottom end of the stirring shaft, and the horizontal angle between two adjacent twisted blades is 120°.

There are 2-3 twisted paddles on the same horizontal plane on the stirring shaft.

The beneficial effects of the utility model are:

1. In the multi-blade agitator of the present invention, the combination of the spiral blade and the twisted blade on the outer surface of the stirring shaft not only increases the stirring space, but also increases the radial flow, so that high-viscosity and low-viscosity solid materials Fully disperse, mix evenly, and there is no dead angle in the stirring, and the design of the twisting and twisting paddles can increase the stirring rate.

2. When the stirring shaft of the agitator of the utility model is rotating, the ribbon paddles and twisting paddles on the stirring shaft follow the rotation, thereby turning the surrounding materials and forcing the viscous materials to flow up and down. Under the action of the machine, the solid material can be fully dispersed, so as to achieve the purpose of fully mixing the material.

3. The utility model is suitable for stirring solid material systems with different viscosities, and has a wide range of applications.

4. The utility model has the advantages of simple structure, low cost, easy processing and manufacturing, and is useful for overhaul and daily maintenance by using the agitator.

Description of drawings

Fig. 1 is the main view structure schematic diagram of the utility model;

Fig. 2 is a schematic diagram of the partial A-A section structure in Fig. 1 .

In the figure: 1. stirring shaft; 2. propeller blade; 3. twisting blade.

Detailed ways

Example 1

The structure is shown in Figure 1 and Figure 2. The multi-blade agitator of the present invention includes a stirring shaft 1. The outer surface of the stirring shaft 1 is provided with a ribbon paddle 2. The ribbon paddle 2 is in a spiral shape. The blades 2 surround the outer surface of the stirring shaft 1 and extend from the top of the stirring shaft 1 to the end of the stirring shaft 1, and horizontal twisting blades 3 are arranged at the intervals of the propeller blades 2 on the stirring shaft 1. The bottom end of the blade is also provided with a transverse torsion blade 3, and the torsion angle of the torsion blade 3 is 180°. The twisted blade is formed by twisting one end of the straight blade 180° to one side.

Preferably in the present invention, the number of twisted paddles 3 at the bottom of the stirring shaft 1 is three, and the horizontal angle between two adjacent twisted paddles 3 is 120°. There are 2 twisted paddles on the same horizontal plane on the stirring shaft.

The working principle of the utility model is: when the stirring shaft 1 rotates, the ribbon paddle 2 and the torsion paddle 3 on the agitation shaft 1 also follow the rotation, and the cooperation of the screw paddle and the torsion paddle turns the surrounding materials , forcing the viscous material to flow up and down, and the material can be fully dispersed under the action of radial flow and axial flow, so as to achieve the purpose of fully mixing the material.

Claims (3)

1. A multi-blade agitator, comprising a stirring shaft, is characterized in that: the outer surface of the stirring shaft is provided with a screw blade, and the screw blade is in a spiral shape, and the screw blade surrounds the stirring shaft The outer surface of the stirring shaft extends from the top of the stirring shaft to the end of the stirring shaft, and the stirring shaft at the interval between the propeller blades and the bottom end of the stirring shaft are connected with transverse torsion blades, and the torsion angle of the torsion blades is 180° . 2. The multi-blade agitator according to claim 1, characterized in that: there are three twisted blades at the bottom end of the stirring shaft, and the horizontal angle between two adjacent twisted blades is 120°. 3. The multi-blade stirrer according to claim 1, characterized in that: the number of twisted blades on the same horizontal plane on the stirring shaft is 2-3.

Images