Method for optimizing length and mounting angle of stirring arm of vertical planetary stirrer

Abstract

The invention provides a method for optimizing the length and the mounting angle of a stirring arm of a vertical planetary stirrer. The method is characterized by comprising the following steps: firstly, determining value ranges of parameters of the stirrer, equivalently dividing the value ranges of different parameters, and calculating the values and matching forms of the different parameters in a traversal manner; performing grid division on the bottom face of a stirring kettle, taking grid intersection points as mark points, setting the initial values of the mark points to be 0, and enabling the value to become 1 when the track of a stirring scraper passes through the mark points from the upper portion; counting the number of the marking points with the numerical value of 1 and the total number of the marking points, and calculating the ratio of the marking points to obtain the size of the area scraped by the stirring scraper from the bottom surface of the stirring kettle within a certain time; and optimizing the structure by comparing changing curves of the stirring area coverage rate along with the stirring time under the condition of different stirring arm lengths and initial mounting phase angles. The method can provide a theoretical basis for the design of the key structure size of a vertical planetary stirrer in a more accurate and rapid manner.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment design and parameter optimization, and in particular relates to a method for optimizing the length and installation angle of a stirring arm of a vertical planetary mixer. Background technique [0002] The vertical planetary mixer is a high-efficiency forced mixer with a wide range of applications. It is generally composed of two parts: a low-speed revolving sun wheel stirring part and a high-speed self-rotating planetary wheel stirring part. Its core stirring components include gear reducer, stirring tank, stirring arm, stirring scraper, etc. The stirring structure is driven by a motor to rotate, so that the material performs complex shearing, rolling, and diffusion movements in the stirring tank to achieve the purpose of stirring. Planetary mixers are suitable for stirring and mixing, particle dispersion, accelerated dissolution and Reaction, conditioning and other processes. [00...

AI Technical Summary

Problems solved by technology

However, at present, there is no uniform industry standard or design criterion for determining the length of the mixing arm. It will undoubtedly take a lot of time and materials to compare one by one through experimental methods, which is not in line with the efficient and economical design theory.

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