PSA blast furnace gas purification plant and blast furnace gas pressure swing adsorption purification method

The present invention provides a pressure swing adsorption purification of blast furnace gas purification plant and blast furnace gas pressure swing adsorption method. The apparatus comprising: the air supply unit BFG sent; hydrolysis column inlet and outlet plenum portion of the connection; multiplexing unit energy gas heat exchanger having a gas, gas gas heat exchanger having a first inlet, the first a gas inlet port communicating with a first outlet, a second inlet, a second inlet port communicating with a second outlet, the first inlet and outlet communicating hydrolysis tower; crude desulfurization tower inlet and energy complex connected with the outlet portion of the crude desulfurization tower outlet and the second inlet port communicating energy multiplexing unit from the hydrolysis column effluent cooled blast furnace gas to crude desulfurization tower desired temperature; desulfurization tower air intake and a second gas-gas heat exchanger outlet communicating gas flowing through the gas heat exchanger high temperature hydrolysis tower blast furnace gas and the crude desulfurization tower out of the low-temperature blast furnace gas was heated to the desired temperature desulfurization tower. The apparatus cost can be reduced.