Vacuum pugmill

Abstract

The invention discloses a vacuum pugmill, and relates to the field of ceramic manufacturing. After two pug milling cavities are set to be at different vacuum degrees for pug milling, pug is stirred through a third stirrer arranged in a third pug milling cavity. Particles of the pug obtained by means of mechanical pug milling are in directional alignment, stresses are concealed in the pug, and the stresses can be released in high-temperature firing to influence manufacturing of ceramics. The vacuum pugmill is provided with the third pug milling cavity, the third stirrer in the third pug milling cavity is used for stirring the pug which leaks into the third pug milling cavity after being stirred in the first pug milling cavity and the second pug milling cavity in the way that the turning directions of an inner circle and an outer circle are different, the vacuum degrees inside the two pug milling cavities are different, then random stirring by the third stirrer in different directions is conducted, and the obtained pug particles are irregularly arranged. The vacuum pugmill is simple in structure and suitable for industrial processing of pottery, and the obtained pug gets closer to pug obtained by means of manual pug milling.

Description

technical field [0001] The invention relates to the field of ceramic production, in particular to a vacuum mud mixer for making porcelain. Background technique [0002] Porcelain is the earliest device involved in large-scale manufacturing in China, and Jingdezhen's porcelain-making technology is world-renowned. In order to obtain ceramic products, it is necessary to process the primary materials into qualified mud materials first, and then carry out refining. Mud refining is a process before porcelain is made into a blank. The process is to make the mud material evenly distributed, dense in texture and remove air bubbles through stirring operations. Mud refining is divided into manual mud refining and mechanical vacuum mud refining. [0003] At present, the vacuum mud refining machine is mainly used to carry out the mud refining process. The processing of the mud material by the vacuum mud refining machine is divided into processes such as feeding, preliminary refining, v...

AI Technical Summary

Problems solved by technology

[0005] However, the mud produced by the vacuum mud refining machine is directional during the stirring process, and the agitator usually only passes through one mud refining chamber to stir the mud during the stirring process, and the mud in the mud refining chamber When being stirred, it usually only rotates in one direction and cannot rotate in random directions at the same time. After stirring, the particles in the mud will be oriented, so there will be stress in the mud, and these stresses will be fired at high temperature. Therefore, the volume of the mud mass shrinks uniformly after firing, which causes uniform shrinkage of the product and increases the deformation rate.

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