A fluidized spray drying granulator

Abstract

The invention discloses a fluidizing and spray-drying granulator. The granulator comprises a trapping chamber, a spraying chamber, a fluidizing chamber and an air inlet chamber which are sequentially arranged from top to bottom, wherein an air inducing pipe is arranged on the side wall of the upper part of the trapping chamber and connected with an induced draft fan, a bag filter is arranged in a position where the bottom of the trapping chamber and the top of the spraying chamber are connected, a position-adjustable spraying device is arranged in the spraying chamber, a perforated fluidizing plate is arranged in a position where the bottom of the fluidizing chamber and the top of the air inlet chamber are connected, an air inlet pipe is arranged on the side wall of the lower part of the air inlet chamber, and a filter, a dehumidifier and a heater are arranged on the air inlet pipe. The spraying device and the perforated fluidizing plate are movably connected, relative positions of all spraying guns, the spraying amount, the auxiliary material amount and the aperture ratio of the perforated fluidizing plate can be adjusted according to granulation requirements, and enlargement of the liquid atomization range and stable fluidization of seed powder are realized, so that the production efficiency and the product quality are improved, and the drying energy consumption is reduced.

Description

technical field [0001] The invention relates to a fluidized spray drying granulator. Background technique [0002] Fluidized spray drying granulator is a kind of granulation equipment integrating mixing, spraying, drying, granulation, granule coating and other functions. It is often used in tablets, granules, capsules, instant food, beverage granules, chemical granules It is especially suitable for dry granulation of traditional Chinese medicine liquid extract. There are two problems in the existing technology: First, although there are multiple spray guns for atomizing the feed liquid in the fluidized spray dryer, there are dead angles in the atomization area, which limits the range of contact between the feed liquid and the seed powder, and the production The efficiency is greatly reduced; secondly, the opening ratio of the porous plate at the bottom of the fluidized bed is fixed, which limits the improvement of the fluidization of the seed powder, and its product quality...

AI Technical Summary

Problems solved by technology

There are two problems in the existing technology: First, although there are multiple spray guns for atomizing the feed liquid in the fluidized spray dryer, there are dead angles in the atomization area, which limits the range of contact between the feed liquid and the seed powder, and the production The efficiency is greatly reduced; secondly, the opening ratio of the porous plate at the bottom of the fluidized bed is fixed, which limits the improvement of the fluidization of the seed powder, and its product quality is directly affected

Considering the actual production, the adaptability of the existing fluidized spray drying granulator is relatively low

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