Method for eliminating wax smoke during firing of ceramic products molded through doping wax

Abstract

The invention relates to a method for eliminating wax smoke during firing of ceramic products molded through doping wax. The method is characterized in that the wax smoke is produced by hot dewaxing, cooled by liquid sprinkling, and then discharged after being cooled below 28 DEG C through heat exchange. Wax and smoke in the discharged wax smoke can be simply, conveniently and completely separated, the wax is recovered in the form of solid wax, pollution and odour are eliminated, and the processing method is economic, simple, convenient and reliable. In particular, the wax smoke discharged by dewaxing is first introduced into and burnt in a furnace, therefore, not only can subsequent processing burden be reduced, but also combustion heat energy can be utilized. Wax smoke pollution can be stably eliminated with the method at low cost, the wax can be recovered, and the longstanding unsolved problem of wax pollution in the industry is solved.

Description

technical field [0001] The invention relates to a method for eliminating wax smoke pollution by shaping and firing ceramics mixed with wax. Background technique [0002] Ceramic wax molding is an important process in the production of ceramic products, especially for high-precision, special-shaped precision hot-press molding, with a long history. It is made by adding paraffin wax as a binder in the ceramic powder to make a fluid slurry and then hot die-casting to obtain a waxy molded body. When firing, it is first dewaxed by heat to make it into a volatile wax smoke in the ceramic body. excluded from the body. However, the wax fume discharged from dewaxing has a strong odor, which not only seriously pollutes the environment, but also has an impact on human health. Especially the discharged wax fume cools and solidifies and falls to cover the surface of vegetation, which will also affect the photosynthesis of plants and seriously cause plant death. [0003] Although in the ...

AI Technical Summary

Problems solved by technology

However, the hardness of the molded wax billet is relatively poor, and soaking in a solvent will have a certain impact on the strength of the billet and cause damage to the molded billet; secondly, this method is not suitable for large-scale industrial applications; Higher, and it is necessary to deal with the solvent that absorbs the wax

These all affect the practical application value

[0005] Therefore, the current state of the art is that the wax discharge pollution problem of wax-molded ceramics has not been effectively solved for a long time, and has become a major hazard and problem for ceramic wax molds.

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