池島選炭工場の設備改善について  [in Japanese] Improvement of Facilities in Ikeshima Coal Preparation Plant  [in Japanese]

Ikeshima coal preparation plant was started operation from 1959. This plant has been conducting many renovations of equipment for 40 years to fit the various demands and changes of markets and also to correspond a number of legal controls. This time, we report about 3 construction work in recent years. At first, in order to increase the capacity and obtain higher accuracy of separation, the main Baum jig (capacity : 300 t/h) has been converted into a VARI=WAVE jig, which has been developed to create a desired wave pattern of pulsation. Secondly, we introduced the Filter Press in order to recover the low grade of fine coal. Finally, we renewed the dust collector because of the handling of the dust which was influenced by the increase moisture content in raw coal.