Hot-process phosphoric acid combined heat and power generation system with fused salt heat storage and air energy storage

The invention discloses a hot-process phosphoric acid combined heat and power generation system with fused salt heat storage and air energy storage. The invention discloses a novel heat energy recycling system for hot-process phosphoric acid, which comprises five subsystems, namely a fused salt heating and heat storage system, a steam generation and overheating system, a steam turbine power generation and heat supply system, an air energy storage system and a hot-process phosphoric acid production system, the fused salt heating and heat storage system comprises a fused salt heating tank, a high-temperature fused salt tank, a low-temperature fused salt tank, a condensate water storage tank, a pipeline and the like; the steam generating and overheating system comprises a steam superheater, a steam generator, a pipeline and the like; according to the system, redundant saturated steam and valley electricity are utilized at night to heat fused salt to high temperature in a stepped mode and store the fused salt in