Spiral rising arrangement mode of blades

Abstract

The invention provides a spiral rising arrangement mode of blades. The arrangement mode includes a stirring shaft 1, stirring shaft holes 2, hubs 3, hub holes 4, cylindrical pins 5, blades 6 and connecting bolts 7, wherein the blades 6 can be hinge blades, straight blades, backward bent blades, fan blades and the like. When the blades 6 are connected with the stirring shaft 1, the blades 6 are arranged in an anticlockwise or clockwise spiral rising manner, the distances among the blades 6 are the same, and every two adjacent blades 6 are staggered at an equal angle. When the blades 6 in the arrangement mode rotate in a stirring kettle, a defect that only multiple-layer blades can be adopted for a stirring kettle with a large height-diameter ratio in the prior art, and a defect that the stirring effect is poor among the layers of the multiple-layer blades can be solved. The arrangement mode achieves position fixation of the stirring shaft, and the stirring effect similar to the effect of a single-layer blade which rotates while ascending or descending, can promote the axial circulation of fluid in the stirring kettle, and reduces the complexity of mechanical design and operation.

Description

technical field [0001] The invention relates to the technical field of fluid mixing, in particular to a spirally rising paddle arrangement, which is widely used in chemical, food and other industries. Background technique [0002] Stirring is to make the materials in the kettle (or tank) move in a certain way, usually in a circular motion. Stirring pays attention to the movement mode and intensity of the materials in the kettle, and the adaptability of this movement to a given process. When working, the agitator is like a centrifugal pump without a casing, and the high-speed rotating impeller makes the liquid in the kettle move tangentially and radially. The liquid flowing out along the high speed pushes the liquid in the kettle to flow to the wall of the kettle, and when it encounters resistance, it forms upper and lower circuits respectively and flows back to the inlet of the agitator. Thereby forming a general circulation flow of the fluid. [0003] Most of the stirring...

AI Technical Summary

Problems solved by technology

Therefore, for stirred tanks with a relatively large aspect ratio, multi-layer three-blade paddles are generally used in industry to complete the mixing of materials. However, there are often poor mixing between layers of three-blade paddles; in order to avoid poor mixing, Multiple layers can be set, but too many layers will cause problems such as high energy consumption

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