Before making tiles, porcelain or pottery, we need to do some treatment on the clay. Manual mud practice is to place the mud on a mud stool， and then repeatedly beat and squeeze it in a certain order with a large mallet, until the cross-section of the mud can be seen shiny after a knife is stroked, indicating that the air has been basically eliminated, otherwise it will be burnt It is easy to produce bubbles afterward.
The mechanical de-airing pug mill is that after the raw mud is fed from the feeding hopper, it is crushed, kneaded, and mixed by the discontinuous spiral knife in the tank, and then pushed into the mouth-shaped barrel, gradually filling the mud barrel and being pushed into the front end. The mouth-shaped sleeve is extruded and then cut into shape.
Nowadays, most clay practice uses mechanical vacuum practice. The vacuum mud mixer saves elbows, labor, and labor, which greatly improves production efficiency.
