概述
沸腾干燥，又称流化床，它是由空气过滤器、加热器、沸腾床主机、旋风分离器、布袋除尘器、高压离心风机、操作台组成，由于干燥物料的性质不同，配套除尘设备时，可按需要考虑，可同时选择旋风分离器、布袋除尘器，也可选择其中一种，一般来说比重较大的如冲剂及颗粒物料干燥只需选择旋风分离器，比重较轻的小颗粒状和粉状物料需配套布袋除尘器，并备有气力送料装置及皮带输送机供选择。
散粒状固体物料由加料器加入流化床干燥器中，过滤后的洁净空气加热后由鼓风机送入流化床底部经分布板与固体物料接触，形成流态化达到气固的热质交换。物料干燥后由排料口排出，废气由沸腾床顶部排出经旋风除尘器组和布袋除尘器回收固体粉料后排空。
蒸汽、电、热风炉均可配用(按用户要求配套)。
它适用于散粒状物料的干燥，如：医药药品中的原料药、压片颗粒料、中药冲剂、化工原料中的塑料树脂、柠檬酸和其他粉状、颗粒状物料的干燥除湿，还用于食品饮料冲剂，粮食加工、玉米胚芽、饲料等的干燥。物料的粒径最大可达6mm，最佳为0.5～3mm。
Descriptions
The fluid bed is composed of air filter, heater, fluid bed main machine, cyclone separator, bag dust collector, high pressure centrifugal fan, operation platform, etc. Due to different properties of materials to be dried, when equipping the dryer with dust removing devices, you can select the cyclone separator and bag dust collector, or select one of them according to the needs. Generally, you only need to select the cyclone separator for materials with relatively high specific gravity such as medicinal granules and granular materials, and select the bag dust collector for materials with relatively low specific gravity such as small granules and powder materials. The pneumatic feeding device and belt conveyor are also available for selection.
The granular solid materials are fed by the feeder into the fluid bed dryer. The clean air after filtration and heating will be sent by the blower to the bottom of the fluid bed and contact the solid materials after passing through the distribution board, so as to form fluidizing and realize heat and mass exchange between gas and solid. The materials after drying will be discharged from the material discharging hole. The waste gas will be discharged from the top of the fluid bed and then pass through the cyclone dust collector and bag dust collector for recovery of solid powders before discharging.
It can be equipped with the steam, electric or hot air furnace (according to user requirements).
It is suitable for drying granular materials, such as pharmaceutical materials, granules for tablet pressing, medicinal granules in the pharmaceutical industry, plastic resin, citric acid, and other powder and granular materials in the chemical industry, as well as food and beverage granules, grain, maize embryo, feedstuff, etc. The maximum particle size of materials can be 6mm, and the best
