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Non-ferrous industry solutions

DEAR air separation has manufactured many sets of air separation equipment for the non-ferrous industry for many years. This solution uses molecular sieve adsorption and full-pressure low-pressure process technology of turboexpander refrigeration. After removing the mechanical impurities such as dust in the air filter, the raw air enters the air turbine compressor, then enters the air cooling tower to exchange heat with water, and then enters the molecular sieve adsorber. Part of the gas is drawn from the middle of the main heat exchanger, enters the expander, and the expanded air enters the upper tower. After the air enters the main heat exchanger, it is cooled to the saturation temperature by the return gas and enters the lower tower with a small amount of liquid. After the air is initially rectified by the lower tower, an oxygen-enriched liquid air is obtained in the lower tower. After the liquid air is cooled by the cooler, it is throttled into the upper tower. After the upper tower is further rectified, oxygen with a purity of 99.6% is obtained at the bottom of the upper tower. The oxygen of this product is reheated by the main heat exchanger and then sent out to the user after being discharged from the cold box. 99.999% nitrogen is obtained from the top of the upper tower, and it is returned to the cold box after being reheated by the cooler and the main heat exchanger. The polluted nitrogen is led out from the top of the upper tower, reheated by the cooler and the main heat exchanger, and then exits the cold box. After being heated by the regeneration heater, it is used as the molecular sieve regeneration gas and the excess gas is vented. The argon fraction extracted from the upper and lower part of the upper column enters the bottom of the crude argon column 1, and the rising steam is extracted from the top of the crude argon column 1 into the bottom of the crude argon column 2. After rectification of the two columns, the Crude argon, most of the crude argon enters the condenser of the crude argon column, is condensed into liquid by the liquid space, and is refluxed to the crude argon column as the reflux liquid of the crude argon column. The liquid returned to the crude argon column 2 is sent to the top of the crude argon column 1 after being pressurized by a liquid argon pump. After the crude argon column 1 is rectified, the liquid fraction returns to the upper column from the bottom, and part of the crude argon enters the argon argon column. After the rectification of the argon argon column, the required pure argon can be obtained at the bottom of the argon argon column.
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Process flow chart of Non-ferrous industry solutions
Process flow chart of Non-ferrous industry solutions
2400/1000-type solution for small and medium-sized air separation plant in nonferrous industry
Formulate construction guidelines for non-ferrous metal intelligent mines and factories, and guide the construction of industry intelligent standardization. Reducing production energy efficiency and overall controllable cost, promoting the rapid iteration of production equipment and improving enterprise profits are the problems that need to be solved urgently in current industry. Recently, DEAR air separation cooperated with customers and signed a 2400/1000-type small and medium-sized air separation plant project, which was highly recognized by customers through reasonable scheme design.
4500/4500-type solution for small and medium-sized air separation plant in nonferrous industry
According to the influence and reform of the general environment of the non-ferrous industry, the problems faced by this industry are becoming more and more serious, and the control of production capacity is particularly important. Recently, the 4500/4500 type small air separation equipment project signed with customers by DEAR Air Separation, through the trial run stage, all the technical indicators have reached or exceeded the design standard, and have been continuously sending nitrogen for several days, which has been well received by users.
Non-ferrous industry small air separation plant 3000/300 Y-type solution
The application of air separation equipment in the non-ferrous industry has laid a solid foundation for the non-ferrous industry. With the rapid development of the industry and the production needs of the enterprises, the small air separation plant 3000/300Y project cooperated with customers by DEAR Air Separation has won unanimous praise from customers.
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