Fluid bed industrial dryer machine and powder coating equipment

Application

Fluid bed can be applied in many fields of medicine, food, chemical industry, and agricultural and sideline products processing to granulate, coat and dry powder materials, such as tablets, instant drink, and condiment pellet. During production, materials should be loaded and discharged in a closed environment to prevent powders from diffusing to working environment. PLC controls the equipment to granulate, coat and dry on the fluid bed.

Brief introduction for top spray system

It consists of a cone-shaped material trough and diffusion (spraying) chamber. The processing airflow passes through the airflow distribution board and screen net from the trough bottom to enter this equipment. When the flow rate of inlet air overcomes its gravitational force, the material in trough can form eddy flow to move (fluid bed).

• The inlet airflow from the bottom up will push the material in the trough to move upward. As with a certain angle of the trough, the aggregative fluidization of the material in it is very intense.
• The material pushed by the airflow, enters into the diffusion chamber. As the space of diffusion chamber is larger than that of trough, the air flow velocity in chamber will be lower than in trough and the speed of material granules in chamber will decrease. When the gravity force of granule itself overcomes the pushing force of inlet airflow from the bottom up, it will fall down and return to the edge area of trough. In the whole process, the granules will move back and forth between diffusion chamber and trough to form irregular fluidization.
• The aim of granulating machine is using fine powder to produce dust-free and flexible granules. Coating refers to coat for those finished fine and uniform granules.
• When granulating and coating with top spray device of fluid bed, the powder or granules rise from the trough bottom in fluidized state; the adhesive or coating liquid is sprayed to the fluid bed by the nozzle of spray gun installed in the diffusion (spraying) chamber to granulate or coat the material. Via the thermal current entering from bottom and heated airflow distribution board to do heat exchange, the material will be dried.
• In the phase of material being blown by air, the surface of each granule will be fully showed in the airflow so that it can achieve the best atomizing spray medium and drying result.
• The top spray technique is suitable for drying process. Dismount the spray gun in diffusion (spraying) chamber, the top spray device turns to be a fluid bed drier.

Technical Parameters

Hunan Grand Packing Machinery Co.,Ltd is specialized in the pharmaceutical and packing machinery for almost 20 years, including the solid dosage production line, liquid filling line, such as wet super mixer, fluid bed drier,  capsule filling machine, tablet press machine, blister packing machine, strip packaging machine, bottle filling and capping line, cartoning machine ,plastic ampoule forming filling and sealing machine etc. We have provided services and machines to many different countries and regions in the whole world, such as Indonesia, Thailand, Malaysia, Philippines, New Zealand, Korea,the Middle East area, Poland, Belgium, France, UK, Greece, Italy, Turkey, USA, central and south America such as Trinidad and Tobago,Mexico, Brazil, Russia, Ukraine, UZ, Tunisia, Algeria, Morroco etc.And we always gain the good reputation from customer both from the machine quality and after sales service.

We are cooperating with various kinds of factories and companies in different fields, including pharmaceutical factroy, food factroy, supplement factroy, agrochemical factroy such as for pesticide, fertilizer, personal care product factroy, such as for cosmetic product, daily use product, stationery factroy, hardware factroy etc.

Our company has very clear devision in different apartment. Our sales team are professional in communicating with customer to answer questions about different aspects of our machine, And we have our own technical research group to do the new product development and also the professional group for customer overseas after sales service . For customer who doesn’t need our enginner for machine installation, we will provide them the detail and professional machine installation and running video for support and help.

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