Method of burning refuse
AssigneeImperial Metal Industries (Kynoch) Limited
InventorJohn Edward Marshall
Life of this patent
Estimating the term…
Abstract
A method of burning refuse to obtain heat which comprises injecting refuse through the back wall of a coal-fired moving grate furnace so that the refuse is burnt either in flight or falls onto the moving bed of coal and is burned with the coal.
Claims14
A method of burning refuse including the steps of establishing a substantially uniform bed of burning coal on a moving grate floor, the bed of burning coal being located at the lower end of a combustion chamber, and entraining refuse in particulate form in a gas jet directed into the combustion chamber through the back wall of the combustion chamber in the opposite direction to the direction of movement of the grate, the velocity of the gas jet being such that the heavier particles are projected towards the front of the bed of coal, to fall onto the moving bed of coal and to be burned with the coal, while the lighter particles of the refuse are burned in suspension above the moving bed of coal.
A method of burning refuse which comprises establishing a substantially uniform bed of burning coal on a grate floor which moves generally horizontally in the lower end of a combustion chamber in a direction away from a front wall of the chamber toward a back wall of the chamber, passing air upwardly through the grate, injecting the refuse in particulate form entrained in a stream of air into the combustion chamber at a location near the back wall of the chamber and above the bed in a direction opposite to the direction of movement of the grate, directing a classifying air stream up at the entrained refuse as it passes over the bed, the air streams acting together to project heavier particles of refuse above the bed and so as to fall onto the bed near the front wall of the combustion chamber and to suspend lighter particles of refuse in the combustion chamber above the bed so that they burn in suspension.
Dependencies are inferred from the claim text.