Powder material and granular material mixing device

Abstract

The invention discloses a mixing device for powder materials and granular materials, which comprises a mixing cylinder body; a grabing plate is disposed on the inner wall of the mixing cylinder body; the grabing plate comprises main grabing plates and assistant grabing plates, wherein the main grabing plate comprises multiple groups of internal helical ribbons; one end of each group of internal helical ribbons is directly mounted on the inner wall of the mixing cylinder body; the multiple groups of internal helical ribbons are distributed uniformly; a group of assistant grabing plates is mounted in a mounting gap between every two groups of main grabing plates; the assistant grabing plates are blades arranged in a direction reverse to that of the main grabing plates; the assistant grabingplates are mounted on the inner wall of the mixing cylinder body by a bracing frame, that is, the assistant grabing plates and the main grabing plates are staggeredly mounted, and the height of the assistant grabing plates is within 0.1-0.6 m. Compared with the prior art, the invention has the beneficial effect that self-falling mixing of the powder materials is realized by the internal grabing plate through the rotation of the rotary cylinder body; the device is simple, has low cost, stable operation, high efficiency, low failure rate, low power consumption, and more stable and reliable product quality.

Description

technical field [0001] The invention relates to device mixing, in particular to a mixing device for powder and granular materials. [0002] Background technique [0003] At present, there is no mature large-scale powder material mixing equipment in China. In the actual production process, the mature powder material mixing equipment has an effective volume of 5m 3 For the following small equipment, the mixing method is forced mixing through the stirring shaft. The stirring methods include: single shaft, multi shaft, vertical, horizontal, spiral, ribbon, rotation, rotation + revolution, etc. However, due to the poor fluidity of most powder materials, after the large-scale stirring mixing equipment, the stirring resistance per unit volume of powder materials increases in multiples according to the relationship of FL (F is the resistance per unit length of the stirring shaft, L is the length of the stirring shaft), According to the above problems and actual production experie...

AI Technical Summary

Problems solved by technology

However, due to the poor fluidity of most powder materials, after the large-scale stirring mixing equipment, the stirring resistance per unit volume of powder materials increases in multiples according to the relationship of FL (F is the resistance per unit length of the stirring shaft, L is the length of the stirring shaft), According to the above problems and actual production experience, large-scale stirring mixing equipment not only consumes a lot of power, but also causes frequent failures of the transmission system and stirring shaft due to excessive load, and even cannot be used at all, so it cannot be used for large-scale industrial production

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