A kind of pulse air supply process for ceramic body drying

Abstract

The invention discloses a ceramic body drying pulse air supply technique. According to the technique, the drying process comprises one or more same air supply cycles; and each air supply cycle comprises a forward air supply part and a reverse air supply part, and the air supply direction of the forward air supply part and the air supply direction of the reverse air supply part are opposite. By adopting the technique, the shadow effect easily caused by traditional drying techniques is avoided, the moisture evaporation amount of all parts of a product is mean, the contraction amount is consistent, the product quality is ensured, the body drying qualified rate is increased, the drying cycle can further be greatly shortened by about 40%, and the energy consumption is reduced by about 40%.

Description

technical field [0001] The invention relates to the field of ceramic manufacturing, in particular to a drying process for a ceramic green body. Background technique [0002] The most traditional drying room only blows and dries the ceramic body from one direction, and there is a more advanced drying room in which the fan diffuses outward through the hot air cylinder rotating in one direction and dries the body. However, these two drying and air supply methods are very easy to form a "shadow effect", that is, due to the relatively fixed air supply direction, some parts of the product dry too much and turn white, while other parts dry too slowly and remain wet. Black, so it is aptly called the shadow effect. Shadow effect Due to the inconsistent drying speed of various parts of the green body, it is easy to crack the green body. In order to avoid cracking of the green body, it is often necessary to reduce the temperature raising speed and humidity dropping speed during the d...

AI Technical Summary

Problems solved by technology

However, these two drying and air supply methods are very easy to form a "shadow effect", that is, due to the relatively fixed air supply direction, some parts of the product dry too much and turn white, while other parts dry too slowly and remain wet. black, so it is aptly called the shadow effect

Shadow effect Due to the inconsistent drying speed of various parts of the green body, it is easy to crack the green body

In order to avoid the cracking of the green body, it is often necessary to reduce the temperature increase rate and humidity decrease rate during the drying process, which will inevitably lead to a longer drying process, low drying efficiency, and waste of energy consumption.

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