PYROLYZER FURNACE APPARATUS AND METHOD FOR OPERATION THEREOF

摘要

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.

主权项

1. A method for making briquettes comprising the steps of:
a. assembling a longitudinal pyrolyzer furnace housing having at least two rotatable drive screws laterally positioned and interleaved within a longitudinal furnace housing and a heating jacket about the longitudinal furnace housing to provide heat flux from combustion fluid moving through the heating jacket to adjacent coal-bearing materials; b. moving coal-bearing materials through the pyrolyzer furnace by rotation of the drive screws and heating to fluidize volatile material in the coal bearing material and plasticize the coal in the coal bearing material to form processed char; c. mixing the processed char with a binding agent and a binder coal of a fluidity at least 2,000 ddpm to form a blend of less than 15% binding agent, 25 to 70% processed char and 20 to 70 % binder coal; and d. briquetting the blend to form a briquetted blend that can be carbonized to form metallurgical coke.