Fluid bed industrial dryer machine and powder coating equipment
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.
FL-200Fluid Bed Granulating and Coating Machine
Auto-control and auto-display
Mainly used for producing and drying the instant granules, tablets and capsules in both Chinese and western medicines.
Can reach 5‰-5% after drying
With isolating treatment, the noise of draught fan is less than 75 dB.
Stainless steel for all the machine and SUS304 for surface with matte treatment, mirror-polish until Ra0.3-0.5 inside.
Head pressure type with pneumatic cylinder, good sealing effect.
Filtration of inlet air
It’s equipped with primary, medium and sub-high efficiency filters, so the air filtration level reaches 100000 grade (3μm).
Air capacity regulation
Frequency control to regulate the air capacity.
Use steam to heat, the material of heater is SUS304
PLC control, frequency converter regulating the air capacity, touch screen operating system, Chinese operation interface.
Steam angle seat valve
Famous brand with high temperature control precision.
Designed and manufactured according to GMP standard, in accordance with GMP requirements.