Centrifugal separator apparatus for removing particulate material from an air stream

US6589306B2 · kind B2 · utility

Assignee

• Ronning Engineering Company, Inc. · US

Inventors

• Richard L. Ronning · Overland Park, US
• Robert Kolb · Groß-Umstadt, DE

Key dates

• Filing date: Jul 18, 2001
• Grant date: Jul 8, 2003
• Expiry date: Jul 18, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B17/106
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Horizontal, negative pressure centrifugal separator apparatus (48, 248, 348, 448, 548) is provided for separating particulate material from an air stream that exhausts from the outlet of a horizontal, industrial size, rotary drum dryer (32). The centrifugal separator is especially adapted to be connected to the negative pressure inlet of a primary fan (42) which pulls large volumes of air through the rotary drum dryer. The separator apparatus includes wall structure which defines two aligned primary spiral separation plenum chambers (e.g. 78, 80) joined to an intermediate spiral discharge plenum chamber (e.g. 82), all of which intercommunicate. A pair of oppositely facing plenum chamber divider members each having a central aperture therein are mounted in the plenum chambers on opposite sides of the discharge plenum chamber and function as pressure regain stacks. Air streams containing particulate materials which are introduced into the air inlets of the primary separation plenum chambers each follow a serpentine path in a respective primary chamber before flowing through a corresponding plenum chamber divider member spiral velocity regain stack into the spiral chamber of the disch…