Crude neon and helium extracting device suitable for force-exhaust nitrogen in air separation column and extracting method of crude neon and helium extracting device
An extraction device and extraction method technology, applied in cold treatment separation, solidification, lighting and heating equipment, etc., can solve the problem of low extraction rate of neon and helium in air separation, which will not exceed 60%, and achieve economic benefits, convenient operation, The effect of reducing energy consumption of air separation
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[0022] The present invention will be further described below in conjunction with the accompanying drawings of the specification, but the present invention is not limited to the following embodiments.
[0023] Such as figure 2 Shown is a specific embodiment of a crude neon-helium extraction device suitable for pumped nitrogen and air separation of the present invention. This embodiment is a crude neon-helium extraction device suitable for pumped nitrogen and air separation, including an air separation tower 1, The neon-poor helium tower 2, the crude neon-helium tower 3, the air separation tower 1 includes a lower tower 4 with liquid nitrogen and an upper tower 5 with liquid oxygen. A condensation evaporator 6 is connected between the upper tower 5 and the lower tower 4 , A circulation pipe 7 is connected between the lower end near the top of the neon-poor helium tower 2 and the bottom of the upper tower 5, and the liquid oxygen at the bottom of the upper tower 5 is transported to...
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