Production Cost Reduction
In addition to a dust collection function, RSW (Ring Slit Washer) has a function to control the top pressure of a blast furnace with a built-in RSE (Ring Slit Element). Therefore, this system does not require septum valves, and can realize facility cost reduction.
Furthermore, combined with a TRT(top pressure recovery turbine ), this system can generate high efficiency power by blast furnace top gas pressure.
The RSE is raised by a hydraulic cylinder, and a hydraulic oil room is installed near the RSW.
If a customer requires only the dust collection function, hydraulic oil room becomes unnecessary by adopting an electro-hydraulic hybrid system, and it can be reduced a construction cost.
The electro-hydraulic hybrid system is a system where a hydraulic cylinder is directly operated by adjusting the forward and reverse flow of an inverter motor type hydraulic pump, and whole hydraulic power unit is stored in the lower part of a RSW main unit.