The Pan dryer is based on the well established and proven Filter / Dryer technology. Here , however, the porous filter bottom is replaced with a heated flat bottom. The simple change in the design of the heated flat bottom increases the heat transfer area considerably. The agitator of the Pan Dryer is also normally heated and is equipped with speed control.
Types of PAN DRYER
A) Top Agitation type PAN DRYER
B) Bottom Agitation type PAN DRYER
A) PAN DRYER (TOP ENTRY AGITATOR TYPE)
The top driven Pan Dryer relies on rotational velocity. A particularly fast agitator with circumferential speed of up to 3 m/s ensures optimum mixing. The raising and lowering agitator also provides mixing on the vertical axis. At the same time, the minimal agitator to wall clearance keeps the wall free from product crust. The rotational high speed of the agitator combined with its vertical translation does not require the use of a chopper.
B) PAN DRYER (BOTTOM ENTRY AGITATOR TYPE)
The vessel is equipped with a bottom driven agitator turning at low and variable speed, depending on the nature of the product to be dried and its moisture content. The agitator ensures the constant renewal of the product in contact with the Heated vessel shell and ensures a good homogeneity and a constant temperature of mixing. In Both type of Pan Dryer the heat required for drying is supplied by the circulation of hot fluid (water, steam or thermal fluid) in the insulated double jacket of the vessel (bottom, shell, cover, dust filter) and avoids areas of condensation. Loading is done at the top of the vessel in both type.
Agitator Sealing without Product Contact :-
The mechanical seal of the pan dryer is also advantageously located outside of the product area. Depending on the application, it can either be lubricated with gas or liquid. The axial motion of the agitator is sealed by metal bellows, as with the Filter / Dryer.
Easy internal inspection
Inspection is easily possible when the pan bottom is lowered. In the case of frequent cleaning and opening cycles, the pan dryer is also ideally equipped with a time-saving quick-locking bayonet flange instead of standard C-Clamps. Important advantages at a glance
The operation under vacuum provides a vacuum drying at low temperature without product deterioration. The dryer is generally equipped with a lump breaker which breaks up the agglomerates and thus increases the surface diffusion of the particles.
The discharge is made by rotation of the agitator through side discharge valve located at the bottom of the vessel. (Heel removable type Discharge Valve.) This equipment has been specially designed for batch drying of solid forms (paste, crystal, granular etc.) and for the concentration of liquids.
Material of Construction
A range of equipment in stainless steel (304L, 316L) or Alloy (C22, C276, 904L, etc.) configurable to meet your most stringent requirements.
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