Large-scale production device for manufacturing concentrated nitric acid through magnesium nitrate method

The utility model discloses a large-scale production device for manufacturing concentrated nitric acid through the magnesium nitrate method and belongs to the field of large-scale concentrated nitric acid production. The bottom of a concentrating tower of the device is communicated with a magnesium nitrate heater through a pipeline, the middle of the concentrating tower is communicated with a mixing distributor through a pipeline, the top of the concentrating tower is communicated with the lower portion of a bleaching tower through a pipeline, the top of the bleaching tower is communicated with one side of a concentrated nitric acid condenser through a pipeline, the other side of the concentrated nitric acid condenser is communicated with the top of a gas-liquid separator through a pipeline, the top of the gas-liquid separator is communicated with a tower tail water ejector through a pipeline, one side of the bottom of the gas-liquid separator is communicated with a finished acid cooler through a pipeline, and the other side of the bottom of the gas-liquid separator is communicated with the upper portion of the concentrating tower through a pipeline. The large-scale production device has the advantages of being reasonable in design, easy to machine, high in production efficiency and the like, greatly saves construction investment, greatly reduces ton product energy consumption and whole year operation cost, and has appreciable economic and environmental protection benefits.