PURPOSE: To prepare a low-cost solid fuel with a high calorific value of combustion, by mixing paper sludge, screen dregs, coke and oil obtained by heating waste tyre, and rosin in a specified blend ratio and forming the mixture into shape or crushing it.
CONSTITUTION: Waste tyre 1 is fed from a hopper 3 into a pressure cooker 4 and is heated with hot air from a burner 5. Produced coke 6 is crushed in a crusher 7 and produced oil is stored in an oil tank 8. Paper sludge 9 produced in paper mill and screen dregs 10 abtained as residue of corrugated board, etc. are mixed in a mixer 11 and are dried in a drying oven 12. 15W35% paper sludge, 15W35% screen dregs, 69.4W25% coke, 0.3% or higher oil and 15W0.3% rosin are mixed in a mixer 13 and the mixture is fed into an extrusion molding machine 15 to produce solid fuel 16 or is crushed in a crusher 18 to obtain dust coal 19.
JPS56122896A | 1981-09-26 |