Rotating and Vacuum Thermal Process Equipment

Buflovak Double Drum Dryers Effective for Food, Chemical and Pharmaceutical Uses


Buflovak offers the most versatile and widely applied drum dryers. They are effective for food, chemical and pharmaceutical products of varying densities and viscosities. The popular equipment offered by the company only allows exposure to temperatures above boiling point for a few seconds.

The descriptions below explain just how versatile the company's double drum dryers are:

• Most versatile and widely applied dryers
• Used to dry food, chemicals, and pharmaceuticals
• Materials vary in density and viscosity such as dilute solutions, heavy liquids, or pasty materials
• Effective for heavy sludges that become saturated and deposit salts
• Products sensitive to high temperatures can be dried successfully because exposure to temperatures above the boiling point is restricted to just a few seconds
• Movable drum permits complete control of product film thickness
• Feed may be accomplished via perforated tube trough, pendulum, or specially engineered devices
• Can be equipped with externally controlled full or partial enclosures to protect personnel when drying toxic, dusty, or flammable products
• Solvents can be reclaimed by connecting vapor outlet to a condenser
• Recovery or elimination of dust from vapor can be accomplished by adding a scrubber
• Mechanical support skids are available for double drum dryers

Features of Buflovak's dryers include:

• Equipped with two (2) accurately fabricated, steam-heated drums that rotate downward toward the nip or pinch of the rolls. Drums may be manufactured from steel, cast iron or stainless steel
• Wet feed is introduced to nip by various methods including perforated pipe, pendulum feed or mechanical trolley
- Reservoir of fluid is formed between drums and contained within endboards fitted against end faces of drums
• Wet feed level may be varied as required
• Liquid is heated to boiling point and partially concentrated by hot drum surfaces
• Feed is deposited as film on both drums

Benefits of the company's products are numerous, including:

• Drying takes place within a single revolution of the drums
• Dried material is removed by adjustable knives
• One drum is movable to enable thickness of product film to be controlled
• Thickness of film can be modified to produce product ranging from flakes to powder

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