... 3. high oil yield,low consumption 2012 Hot Sale Waste Tyre Oil Recycling Equipment Model : WJ-5 type, WJ-6 type ... of this method is:First, when the system problems, turn off the fan, you can instantly switch off the heating source, in order to ensure ... of waste tires, the remaining residue is carbon black. There is no waste solids. 2012 Hot Sale Waste Tyre Oil Recycling Equipment