The invention discloses an electronic injection flash boiler for supercritical 
pyrolysis gas. The electronic injection flash boiler for the supercritical 
pyrolysis gas is composed of a fused salt adding 
pipe, a fused salt groove, a fused salt 
discharge pipe, a heat-
insulation layer, a 
combustion cavity, a 
smoke pipe, a 
smoke cavity, a 
combustor, a 
waste heat recovery water tank, a water outlet pipe, a high-pressure 
plunger pump, a high-pressure spraying device, a steam generator, a steam coiled pipe, a steam groove, a steam distribution cylinder, a 
smoke discharge pipe, a water inlet pipe, a first smoke groove, a second smoke groove, a third smoke groove, an air pipe, a water groove, a 
steam turbine, a power generator, a first electric heater, a second electric heater, a 
solid material conveyer, a liquid material conveyer, a steam collision substance 
decomposition coiled pipe, a vertical separation 
tower, a horizontal 
decomposition chamber, a circulation water pump and a 
cooling tower.The invention provides a substance 
thermal decomposition and separation device which is simple in structure, efficient and energy-saving, high in heat conversion efficiency, large in heat exchange area, complete in substance classification, adequate in 
decomposition, clear in separation, high in collection speed, convenient to operate, capable of realizing 
waste heat utilization, and free from emission.