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Knife Edge Twist & Dry Spray Drying Nozzle

Custom Solutions Bulletin 008

Application #031343

Industry:   Food Processing

Application:   Spray Drying

Product Description:   Knife-edge Twist & Dry® (TD) Carrier

PDF version of this Bulletin (87 KB)

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Situation:   A dairy processor was experiencing buildup on the nose of the standard Twist & Dry carrier while spray drying a high fat content product. Buildup needs to be prevented in this type of application because if the buildup dries when exposed to the hot air, there is a risk of combustion within the drying unit.

Knife Edge Twist & Dry Spray Drying Nozzle Carrier

BETE's Solution:   The reasons behind this type of buildup are complex and largely related to the air flow within the dryer. To avoid the buildup, BETE Applications Engineers modified an existing Twist & Dry carrier design to arrive at the "knife-edge" carrier #10 nose design (the lugless version is carrier #12). The knife-edge carrier tapers down to form a sharp ridge at the tip. The conventional Twist & Dry carrier design has a flat face. The new knife-edge design is typically for use in high fat content dairy applications, such as whole milk and etc. The knife-edge carrier design significantly reduces product buildup, thus reducing the risk of combustion.

To discuss your fluid-related challenge, please contact BETE Applications Engineering at 413-772-0846 or appeng@bete.com.

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