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http://dx.doi.org/10.14775/ksmpe.2022.21.09.035

Development of Inorganic Sludge Drying System Technology Applied with Ejector by Air Velocity  

Cho, En-man (Reentec engineering Ltd.)
Jeong, Won-hoon (Department of Automotive Engineering, Graduate School of Gyeongsang National University)
Kim, Dong-keon (Department of Automotive Engineering, Gyeongsang National University)
Kim, Bong-hwan (Department of Automotive Engineering, Gyeongsang National University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.21, no.9, 2022 , pp. 35-41 More about this Journal
Abstract
The moisture content of many inorganic sludges is less than 70% during dewatering. Hence, a mono or piston pump cannot feed the sludge dryer. Thus, most inorganic sludge should be moved to a landfill or recycled directly without any reduction method. This development was invented to apply cyclone dryers using air and specially designed for the continuous injection of sludge sources by negative pressure and high air velocity for low moisture inorganic matter. Therefore, wastewater sludge and raw water treatment sludge discharged from various industrial fields might be settled by this development. The cyclone dryer was commercialized useful as moisture reduction equipment. This development was applied using a sludge injection system for sludge feeding and under the cooperation of ejector design computational fluid dynamics. Furthermore, this paper presented good ejector model results, blowing an airflow of 264 m3/min at an actual performance test.
Keywords
Air Drying; Computation Fluid Dynamics; Cyclone Dryer; Ejector; Inorganic Sludge;
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