Pharmaceutical drier

Abstract

The invention discloses a pharmaceutical drier, comprising a shell, wherein the internal of the shell is divided into a hot air chamber and a drying chamber by a partition, the lower part of the partition is provided with a hot air blower blowing from the hot air chamber to the drying chamber, the top of the hot air chamber is provided with an intake fan, a plurality of material conveying troughs are arranged in the drying chamber, a spiral conveyer is mounted in the material conveying trough, the top of the drying chamber is provided with a dehumidifying fan, metal pendants are uniformly distributed on the inner wall of the hot air chamber, electric heating pipes are fixed on the metal pendants in a hanging manner, the electric heating pipes are uniformly distributed and provided with heating surfaces facing the material conveying troughs, and the hot air chamber is further provided with a temperature sensor and a electric heating pipe power regulating device. According to the pharmaceutical drier, the material can be continuously dried, so that the drying effect is improved, thermal decomposition of effective constituents in the material is reduced, and the quality of finished product is improved.

Description

technical field [0001] The invention relates to the field of pharmaceutical technology, in particular to a dryer used in the pharmaceutical industry. Background technique [0002] At present, in the pharmaceutical industry, in order to meet the production needs of the next process as soon as possible, the materials are usually dried by using a dryer to speed up the drying speed of the materials and shorten the material supply cycle between processes. In the production process of some pharmaceuticals or their intermediate products, the drying step is very critical. The drying time, drying uniformity, and drying temperature control directly affect the drying effect of the product. The effect is one of the most important factors in the quality of the product. Therefore, the pharmaceutical industry needs a medicine dryer with good drying effect and without greatly increasing the production cost. [0003] Most of the existing dryers have a relatively simple structure, and t...

AI Technical Summary

Problems solved by technology

The dryer with this structure has the following defects: direct heating can easily lead to the decomposition of some active ingredients in the material; the material spread on the material tray is not heated evenly, resulting in increased drying costs or poor drying effect; continuous drying cannot be achieved. The drying operation; there is an error in the temperature control, and the drying effect is not ideal

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