Spray drying device and spray drying method for Relinqing tablets

Abstract

The invention discloses a spray drying device for Relinqing tablets. The spray drying device comprises an atomizing drying tank, an airlock, a mother liquor tank, an exhaust structure and a high-speedcentrifugal atomizer, the airlock, the mother liquor tank and the exhaust structure are in communication with the lower end of the atomizing drying tank, the high-speed centrifugal atomizer is fixedly mounted at the upper part of the inner side of the atomizing drying tank, the side wall of the columnar part of the atomizing drying tank is of a double-layer structure, a heat pipe is fixedly arranged in a cavity between the two layers of side walls of the atomizing drying tank, an exhaust port of an air blower fixedly installed on the side wall of the atomizing drying tank is in communicationwith the cavity, a plurality of air ports are formed in the inner layer wall of the atomizing drying tank, the air ports formed in the upper portion of the columnar part of the atomizing drying tank are obliquely upwards formed, and the air ports formed in the lower portion of the columnar part of the atomizing drying tank are obliquely downwards formed. The invention discloses a spray drying method for Relinqing tablets. According to the spray drying device and the spray drying method for the Relinqing tablets, through the updating design of a hot air input structure, the drying effect is enhanced, concentration is prevented from adhering to the inner wall, the processing efficiency is guaranteed, and the practicability is higher.

Description

technical field [0001] The invention belongs to the technical field of hot-rinsing tablet production, and in particular relates to a spray drying device and a drying method for hot-rinsing tablets. Background technique [0002] Relinqing is a pure traditional Chinese medicine preparation mainly used for the treatment of urinary system infections, which is produced by selecting authentic Guizhou medicinal materials Polygonum cephalosporins, based on the proven prescriptions that have a unique curative effect on urinary tract infections circulated among the people in Guizhou. Relinqing Tablet is a modified dosage form based on the original dosage form Relinqing Granule. In production, it is necessary to dry the concentrated solution obtained from Polygonum cephalum, collect the dried dry material with a thick paste, add appropriate amount of starch, microcrystalline cellulose, sodium starch glycolate, make granules with 40% ethanol, and dry Whole grains, mixed with appropriat...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the drying effect and drying efficiency of the concentrated liquid, a spray drying device is used for drying. The concentrated liquid is liquefied and then dried quickly after contacting with high-temperature gas. The traditional spray drying device is equipped with steam heating equipment at one end of the pipeline. After the air is heat-exchanged, high-temperature air is generated and then continuously passed into the atomization drying tank. However, in the actual operation process, the heat consumption of the air during the transportation of the gas pipeline is too large, resulting in a waste of heat energy and a waste of resources. ;

[0004] Moreover, during the drying process, a large amount of the concentrated liquid sprayed out by atomization adheres to the inner wall of the atomization drying tank, and the thick paste formed after drying will also adhere to the inner wall, which cannot be collected or flows down for a long time, which increases the collection time and affects Processing efficiency;

[0005] In addition, the traditional spray drying device introduces heat flow from the upper end of the atomization drying tank. When the heat flow is in contact with the atomized concentrated liquid from top to bottom, the heat loss in the lower part of the atomized drying tank is large and the heat is relatively low. For the concentrated liquid The drying efficiency has dropped greatly, and it is easy to have uneven drying effect in industrial production, so it needs to be improved in a targeted manner

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