Abstract
Gas and air flows have been measured at burners in existing tunnel furnaces by means of diaphragms, throttle washers, and flowmeter tubes, which substantially facilitates adjusting and regulating the thermal conditions. Cylindrical and conical nozzles can be replaced in burners on working furnaces by nozzles with peripheral holes, which improve the gas-air mixing and raise the flame temperature. Intermediate burners with a pitch of 1.5 m substantially improve the firing quality and enable one to increase the loading mass in a wagon.
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