Examples of the iron mill industry
Iron mill is one of the most capital intensive industries, and thoroughly automated so that processes may continue consistently. Therefore even minor hydraulic problems invite not only loss of product quality but also productivity.
- Mud gun: Hydraulic system for a clay-mud extruder used to plug the iron outlet port. after dis charging molten iron in the blast furnace.
- Furnace top control: Hydraulic control system for charging materials from the top.
- Converter lance: Hydraulic system for a device that blasts oxygen
- Electric furnace: Hydraulic system for lifting up and down the carbon electrodes in the arc-processing.
- Continuous cast: Hydraulic system for surface level control of molten iron- pitch and roll (keeping the work plane horizontal)
- AGC: Automatic Gauge Control (Hydraulic system for controlling plate thickness and width, using servo mechanism controlled to 1/100 of plate thickness.)
- EPC: Edge Position Control (Hydraulic system for keeping the plate stay in the middle of the roller,and for pushing in and out a mandrill to keep both edges of rolled plate line up while reeled in.)
- Oil oxidation products create operational problem for solenoid valve and servo valves. Electrostatic oil cleaner, EOC, is very effective way for removing them.
- Reducing the maintenance cost, i.e., eliminating overhaul cost of servo valves as well as replacement costs of components such as pumps, and reduction of steps.