Apparatus for drying and heating nylon granules

US4439933A · kind A · utility

Assignee

• BASF SE

Inventors

• Ernst Dietrich · Worms, DE
• Ernst Guenther · Ludwigshafen, DE
• Werner Hoerauf · Ludwigshafen, DE
• Ernst Kissel
• Hermann Linge · Eisenberg (Pfalz), DE
• Eckart Neumann · Bischofswerda, DE
• Eberhard Schaefer · Ludwigshafen, DE

Key dates

• Filing date: Jun 22, 1978
• Grant date: Apr 3, 1984
• Expiry date: Jun 22, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B17/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A vertical cylinder for drying and heating granules which includes an inlet at the top of the cylinder, a conically tapered outlet at the bottom of the cylinder, a rotatable screening ring beneath the inlet, a chute beneath the screening ring and a scraper above the ring inlets for gases in the downward extending section of the cylinder, a shell and tube heat exchanger located coaxially in the bottom quarter of the cylinder, a horizontally movable grid as flow control device below the heat exchange and a discharge zone below the grid.