Dedert環式幹（gàn）燥（zào）機使用當產品不能有效地在單通的閃蒸幹燥機幹燥（zào）的情況下，特別是散，膏，蛋糕或泥漿，需要延（yán）長幹燥時（shí）間，Dedert的環式幹燥（zào）機解決方案。

不同的技術之間的閃蒸幹燥機和環式幹燥機分類器（氣歧管），從而使半幹燥產品的再（zài）循環額外的幹燥和分散的初始（shǐ）熱區注冊成立。這（zhè）分類實現通過調（diào）整（zhěng）葉片切成已離心分類的材料的層。分流（liú）葉片（piàn）的調整和設置，由合（hé）格的Dedert工（gōng）程師環機的調試過程中，需（xū）要調（diào）整（zhěng）一次（cì）設置。

光環上的幹衣機的回收（shōu）材（cái）料允許的排氣溫度相對較低時要使用的實現所（suǒ）需的^終水（shuǐ）分含量。幹燥效率的提（tí）高和產（chǎn）品質量（liàng）的變化是有限的。

Dedert設計並建成了^上^大的半封閉的環機179,000 ACFM是在一個單一的單元，能夠以每小時34噸（dūn）的水蒸發。

Dedert's Fluid Bed Dryer provides for gentle yet efficient drying action, which is ideal for friable or soft agglomerated particles with a fairly narrow particle size distribution and medium size particles (200 – 400 Microns).

Product is fluidized by the process gas stream entering the dryer through the distributor plate. Dedert has a variety of distributor plates available depending on the application.

Process drying air could be designed as multi-zone to enhance drying characteristics in different parts of the bed. Exhaust air leaves the dryer through a hood and is further cleaned in cyclones or bag filters to maximize product recovery while meeting emission guarantees.

Fluidized heating and cooling zones can be integrated into a single unit in a Fluid Bed Dryer. Submerged extended surface heat exchangers can also be incorporated: this approach maximizes the heat transfer rate. Submerged heat transfer area can be retrofitted to existing Fluid Bed Dryers to increase evaporative capacity.

RING DRYERS

Dedert Ring Dryers are used when products cannot be efficiently dried in single pass Flash Dryers. In cases where particular powders, pastes, cakes or slurries require extended drying times, the Dedert Ring Dryer is the solution.

The differentiating technology between the Flash Dryer and the Ring Dryer is the incorporation of a classifier (manifold), which enables the recirculation of semi-dried product back to the initial heat zone for additional drying and dispersion. The classifier achieves this by the adjustment of blades which cut into the layer of material that has been centrifugally classified. The splitter blades are adjusted and set by qualified Dedert engineers during the commissioning of the Ring Dryer and need not be adjusted once set.

The recycled material on the Ring Dryer allows a comparatively lower exhaust temperature to be used while achieving the desired final moisture content. Drying efficiency is improved and variations in product quality are limited.

Dedert has designed and built the world’s largest partially-closed Ring Dryer at 179,000 ACFM and is able to evaporate 34 tons of water per hour in a single unit.