流化床干燥機，直接干燥法原則之間的直接接觸加熱的氣體/空氣和影響傳熱和傳質(zhì)的產(chǎn)品。該工藝氣流通過流化床空氣腔室通過氣體分布板，其中保留上述的固體進入。流化床干燥器此流化過程中是有效的這樣的操作，如干燥，加熱，冷卻，煅燒反應(yīng)，除塵，或附聚。

靜止流化床干燥機有沒有移動部件。流態(tài)化使產(chǎn)品通過流化床連續(xù)流動，在相對端溢出。流化床干燥機中的多個區(qū)域允許在同一單元中的加熱和冷卻。每個區(qū)域都有獨立控制溫度，露點和流化速度。停留時間可以變化通過調(diào)節(jié)堰的高度為每個區(qū)域中的單元的四倍。

非常適合易碎或軟團聚顆粒的流化床干燥機的溫和但有效的干燥作用。它的工作原理^好的干燥產(chǎn)品，在一個狹窄的顆粒大小范圍。

增強的傳熱和傳質(zhì)，通過緊密接觸，并與流化氣體混合
熱敏感材料可以在的沸點以上的溫度下干燥，由于減少了蒸汽壓力
間接傳熱表面可以被添加以增加容量或減少床面積
閉式循環(huán)流化床系統(tǒng)，惰性氣體可以回收，處理有毒產(chǎn)品，氧氣敏感的產(chǎn)品或易燃溶劑的濕材料。

流化床干燥機的應(yīng)用
聚合物：PET，聚丙烯，PVC
無機化學(xué)品：鹽，鉀肥，磷酸鹽
食品：糊精，葡萄糖，咖啡，酵母菌，凝聚物，洗滌劑，Instantized食品，橡膠添加劑
制藥：阿司匹林，對乙酰氨基酚，氨基酸

FLUID BED DRYER

The Fluid Bed Dryer operates under the direct drying principle of direct contact between a heated gas/air and the product to effect heat transfer and mass transfer. The process gas stream enters through the fluid bed air plenum passing through the gas distributor plate, which retains the solids above. This fluidization process of the fluid bed dryer is effective for such operations as drying, heating, cooling, calcining, reacting, dedusting, or agglomerating.

The stationary fluid bed dryer has no moving parts. Fluidization enables the product to flow continuously through the fluid bed, overflowing at the opposite end. Multiple zones in the Fluid Bed Dryer allow heating and cooling in the same unit. Each zone has independent control for temperature, dew point and fluidizing velocity. Residence time can vary up to four fold in the unit by adjusting the weir height for each zone.

The Fluid Bed dryer's gentle but efficient drying action is well suited for friable or soft agglomerated particles. It works best drying products within a narrow particle size range.

Enhanced heat and mass transfer through intimate contact and mixing with the fluidizing gas
Heat sensitive materials can be dried at temperatures lower than the boiling point due to reduced vapor pressure
Indirect heat transfer surfaces can be added to increase capacity or reduce bed area
Closed cycle Fluid Bed systems, in which inert gases can be recycled, are available to handle toxic products, oxygen sensitive products, or flammable solvent wetted material.

APPLICATIONS OF THE FLUID BED DRYER

Polymers
PET
Polypropylene
PVC

Inorganic Chemicals
Salt
Potash
Phosphates

Foods
Dextrin
Dextrose
Coffee
Yeasts
Agglomerated Products
Detergents
Instantized foods
Rubber additives

Pharmaceuticals
Aspirin
Acetaminophen
Amino acids

Pharmaceuticals
MAP
NPK
urea