Pyrolyzer furnace apparatus and method for operation thereof

Patent metadata

Field	Value
Publication number	US-9045693-B2
Application number	US-201213608703-A
Country	US
Kind code	B2
Filing date	Sep 10, 2012
Priority date	Dec 26, 2006
Publication date	Jun 2, 2015
Grant date	Jun 2, 2015

Abstract

A char making apparatus comprises a longitudinal pyrolyzer furnace housing wherein coal-bearing material may be heated to a temperature to fluidize volatile materials therein and plasticize coal in the coal-bearing material. At least two rotatable drive screws are laterally positioned and interleaved within the longitudinal furnace housing and capable of conveying coal-bearing materials through the pyrolyzer furnace housing, each drive screw having a hollow drive shaft and a diverter positioned within the drive shaft to provide heating to the coal-bearing material. A heating jacket about the longitudinal furnace housing provides additional heating to the coal-bearing material. Multiple combustion chambers adjacent the heating jacket and hollow drive shaft burn fluidized volatile materials and exhaust combustion fluids through the jacket and shaft.

First claim

What is claimed is:

1. A char making apparatus comprising:
a. a longitudinal pyrolyzer furnace housing wherein coal-bearing material containing volatile materials may be heated to a temperature to fluidize volatile materials therein and plasticize coal in the coal-bearing material;
b. at least two rotatable drive screws laterally positioned and interleaved within the longitudinal furnace housing and capable of conveying coal-bearing materials containing volatile material through…

Assignees

• Wolfe Richard A
• Nucor Corp

Inventors

• Wolfe Richard A

Classifications

• F23G5/0273

  Mechanical Engineering · mapped topic

• C10B47/44

  Chemistry & Metallurgy · mapped topic

• F23G2201/303

  Mechanical Engineering · mapped topic

• C10J2300/1246

  Chemistry & Metallurgy · mapped topic

• C10J2300/1223

  Chemistry & Metallurgy · mapped topic