Stirring issues in reaction vessels
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In production, anchor-type stirring is used in enamel reaction kettles, but it is common for the enamel at the junction where the anchor base meets the shaft to peel off. Why is this? If frame-type stirring were used, would the presence of a frame increase the stirring resistance, thereby overloading the motor and causing it to burn out?
I personally think that the chipping of the porcelain might be due to a quality issue at the joint; the stirring rod rotates only on its own axis, while the anchor rotates in a circular motion, and these two movements are not synchronized. Over time, this can lead to cracks, which in turn cause the porcelain to chip； Using a frame structure can also lead to the same problems, but the issue of excessive load you mentioned is easy to resolve – simply reduce the rotation speed.
The chipping of the porcelain at the junction between the anchor base and the rod may be caused by poor manufacturing quality or damage during installation! If a frame-type mixer is used, it will increase the mixing resistance; however, it is necessary to conduct calculations to determine whether the motor is suitable for this purpose. Generally, equipment manufacturers will carry out these calculations for you if you provide them with the relevant details about the materials and requirements.
Putting aside human factors, is stress generated during welding, leading to stress-induced deformation?——