Production method of calamine powder

Abstract

The invention discloses a production method of calamine powder. The method comprises the steps of: putting calamine ore into a calciner so as to be calcinated for 3h at a temperature of 500-800DEG C, then leaving the ore to cool to room temperature naturally, thus obtaining forged calamine; pulverizing the forged calamine in a pulverizer, then conducting screening with a screen of 100 meshes, thus obtaining forged calamine powder; conveying the forged calamine powder into a grinder and adding water for grinding, so that a calamine water slurry with a particle size smaller than or equal to 120meshes can be obtained; conveying the calamine water slurry into a settling tank so as to obtain an upper layer of water solution and a lower layer of calamine powder; subjecting the lower layer calamine powder to dehydration in a dehydrator so as to obtain calamine powder, which is then dried in a drying box at a temperature of 70-80DEG C to make the water content less than 0.5%, thus obtaining dried calamine powder. The production method provided in the invention can enhance the content and uniformity of ZnO in calamine powder, and can increase drug absorption and improve curative effects.

Description

technical field [0001] The invention relates to the field of production technology, in particular to a production method of calamine powder, which is suitable for the production of high-purity and medicinal calamine powder. Background technique [0002] Calamine is a carbonate mineral calcite group smithsonite, the main component is zinc carbonate (ZnCO 3 ) is sweet and warm in nature, detoxifies, improves eyesight and relieves cloudiness, reduces dampness, relieves itching and suppresses sores. Traditional Chinese medicine is used for conjunctival congestion, swelling and pain, red and rotten eyeliner, pannus pterygium, unrestrained ulcer, dripping pus, eczema, and itchy skin. [0003] After calamine is forged, ZnO can be produced and made into ultra-fine powder for external use. ZnO can absorb wound secretion, astringe and form a thin film on the mucosal wound. The wound exudate stops, dry and scab, and the wound infection is quickly controlled. At the same time, zinc is...

AI Technical Summary

Problems solved by technology

[0004] At present, the production method of calamine powder in my country is generally calamine ore is calcined, and then crushed before use. Because calamine ore is affected by the place of production, its quality varies greatly, and the ZnO content is very uneven. The conventional method produces Calamine powder has low ZnO content, coarse particles, poor absorption, and affected curative effect, etc.

Images