Patents Assigned to Lecorp
  • Method of drying fine coal particles
    Patent number: 4444129
    Abstract: A method of drying wet coal fines smaller than 28 mesh in size employs both a vibrating fluidized bed type dryer and a coal fired burner for supplying hot drying gases to the dryer. A regenerative separator is interposed between the coal fired burner and the fluidized bed type dryer to satisfactorily remove particle matter from the gases without unacceptable pressure losses. Hot gases exhausted from the fluidized bed type dryer are also cleansed to remove particulate coal particles which are used as fuel for the coal fired burner.
    Type: Grant
    Filed: November 5, 1982
    Date of Patent: April 24, 1984
    Assignee: Lecorp
    Inventor: Max A. Ladt