Device system and method based on iron and steel industry multi-energy storage

The invention relates to a multi-energy storage device system and method based on the iron and steel industry. The device system comprises a power supply system, an electric load system and an energy storage system. The power supply system comprises a new energy power generation system, a gas self-power-generation system and a power grid; the electric load system comprises a steel production process system; the energy storage system comprises a heat and energy storage system, a gas cabinet energy storage system, an air separation energy storage system and a chemical energy storage system. The method adopts the device system. According to the multi-energy storage device system and method based on the iron and steel industry, multiple energy storage modes can be implanted into the iron and steel production technological process, multiple energy storage technologies are fully utilized and adjusted, the energy storage capacity is increased, the production cost is reduced, and the energy utilization rate is increa