Surface International manufactures Coke Injection Machines. This machine is widely used for controlled coke injection in molten metal to make steel alloys. The machine entails a substantially built hopper with a storage capacity of 1 to 2 m3 Coke. This hopper is mounted on load 3 cells. The Coke is conveyed by a screw conveyor through a variable drive unit. The flow of material is controlled by a PLC controller which provides the actual feed rate of coke from the machine and also permits flight correction of the rate to achieve precise coke feeding time.
The coke injection system has a rotor-type Gunning machine that conveys the coke in a hose pipe to the furnace where it is injected into the molten metal through a metallic Lance. A Dust collector is provided with the system to take care of the coke dust generated during the process and keep the environment friendly and Dust free. Coke injection rates 20 to 100 Kg. per min can be achieved with the machine and the required data can be entered on the MMI unit of PLC.
