The article presented a feasibility study of application of the developed constructions of untwisting devices in cyclone apparatus: blade untwisting device and the untwisting device with stream recirculation, allowing substantially to reduce pressure drop and promote efficiency of catching of dispersible particles. The calculations of economy of energy and money facilities are resulted at cleaning of gas in cyclones with the developed untwisting devices. Application in the most widespread cyclones CN-11 and CN-15 blade untwisting device power inputs on clearing 1,000 m3 gas decrease on the average on 0.25 and 0.15 kW · h, and using of the untwisting device with recirculation of a stream – on 0.2 and 0.11 kW · h accordingly. The term of recoupment of additional expenses on an untwisting device will make less than year.
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