Patent ID: 9359241
Filing Date: 2016-06-07
CPC Classification: C03B,Y02P

Claim Text:
1. A method of making a mineral melt by burning combustible material in the presence of a particulate mineral material and thereby forming a melt, the method comprising the steps of: supplying a particulate mineral material and a first portion of a waste material into a conduit of a heat exchange system, wherein the first portion of the waste material is a first waste mineral wool; preheating the supplied particulate mineral material and the first waste mineral wool in the heat exchange system; injecting a fuel, a combustion gas, the preheated particulate mineral material and the preheated first waste mineral wool into a circulating combustion chamber through an inlet conduit, and combusting the fuel in the circulating combustion chamber thereby melting the particulate mineral material and the first waste mineral wool to form a mineral melt and generating exhaust gases; separating the exhaust gases from the mineral melt, collecting the mineral melt and passing the exhaust gases upwards through an exhaust pipe to the conduit of the heat exchange system; and supplying a second portion of the waste material with a water content between 5 and 25% by weight directly to the inlet conduit, wherein the second portion of the waste material is a second waste mineral wool.