Paddle Mixer mixes and hydrates sticky materials.

Press Release Summary:




Twin Rotor Hydramix operates in continuous flow without clogging. Self-cleaning design features close tolerances between rotor paddles and container walls to reduce material buildup. Unit has adjustable mixing speed and provides production rates up to 10 tons/hr. Rotors operate at 10 rpm, preventing particle damage during residence times of 20-30 min. Applications include hydration of phosphates and soda ash, or blending of feed supplements, fertilizers, and pesticides.



Original Press Release:



New Hosokawa Twin Rotor Hydramix Hydrates and Mixes Sticky Materials



MINNEAPOLIS - The new Twin Rotor Hydramix from Hosokawa Bepex gently mixes and hydrates a wide variety of dry or sticky materials in a continuous flow without clogging. The new self-cleaning design features close tolerances between the rotor paddles and the container walls to reduce material buildup. This increases productivity and reduces maintenance in applications such as hydration of phosphates, soda ash, or the blending of feed supplements, fertilizers or pesticides.

"Existing hydrators are prone to clog when sticky materials build up on container walls or mixing paddles," says Sara Gantner, a product engineer with the chemical/polymer group of Hosokawa Bepex. "In the past, this resulted in significant downtime for cleaning and maintenance. The new Twin Rotor Hydramix solves this problem with paddle rotors that closely intermesh in such a way that they continuously wipe each other to reduce material buildup."

The Hydramix consists of twin intermeshing paddle rotors operating at different speeds in a covered trough. In hydration applications, liquid is injected through nozzles located near the feed inlet to promote thorough mixing. Injection nozzles can also be located along the length of the unit to provide liquid addition during stages in the mixing. The unit is jacketed and the rotors can be heated to promote reactions or to prevent sticking. In hydration applications that are exothermic, the rotors can also be cooled to remove excess heat.

Capable of production rates of up to 10 tons per hour, the Twin Rotor Hydramix has an adjustable mixing speed in order to tailor the degree of mixing and conveyance to the application. Mixing speed and paddle angle can be adjusted separately to vary the amount of mixing energy imparted to the material independently from conveyance speed. With rotors that operate at only about 10 rpm, the Hydramix features low-shear operation to provide excellent mixing while preventing particle damage even during residence times of 20-30 minutes. The Hydramix can be followed by a fluid bed dryer to remove free moisture and to preserve particle size.

Hosokawa Bepex maintains pilot-scale mixing and drying equipment in its Minneapolis testing facility to help customers evaluate performance and develop optimum operating conditions prior to installation. These pilot scale systems allow Hosokawa Bepex to accurately scale up production machines for each application.

Hosokawa Bepex is a single-source provider of integrated powder and particle processing systems for size reduction, agglomeration, compaction, drying, briquetting, thermal processing, blending and mixing. The company's equipment brands include Bepex, K-G, Rietz, Schugi and Strong-Scott. Hosokawa Bepex is a member of the Hosokawa Micron Group, an international provider of equipment and technology for powder and particle processing, plastics processing and confectionery products. For more information about the new Hydramix, contact: Hosokawa Bepex, 333 NE Taft Street, Minneapolis, MN 55413. Phone: 612-331-4370; Fax 612-627-1444. Visit the web site at: www.bepex.com.

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