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Effect of blade size and width in a paddle mixer
- Nov 14, 2018 -

The structure of the paddle mixer is relatively simple. One engine is combined with some impellers. The blades are made of flat steel, welded or bolted to the hub; the number of blades is 2, 3 or 4, and the form can be divided into flat. Both straight leaves and folded leaves can be divided into flat paddle mixers and inclined paddle mixers according to the shape characteristics of the blades.

 

    It should be known that the size of the paddle in the paddle mixer is not an arbitrary decision. Since its size will affect the current beam, power consumption, liquid mixing process, etc., it must be correctly selected. If the paddle of the mixer is too small, It is not possible to provide the required energy for the mixing process.

   It is understood that the blade size of the paddle mixer is usually determined by the diameter of the propeller and the width of the blade. At the same time, the type of the mixing device and the size of the groove are closely related, and must be considered in combination with various factors. determine.


    During use, when the liquid enters the layer state, the cylinder rotates around the axis to almost zero, but due to the large liquid viscous force, the dead zone time slot is prone to occur, so at this time, a large diameter blade is to be taken. Such as anchoring, frame and screw mixers.

    There is also an analysis of the influence of the blade width in the paddle mixer to analyze the power consumption of the device. In high viscosity liquids, laminar flow and power consumption are almost proportional to blade width; low viscosity liquids only increase power consumption when the blade width range is small and wide pitch.