I-HP-DHK uchungechunge lwe-double-layer preheating preheating machine (Patent No.: ZL 2009 1 0014580.9) iphinda kabili ukusebenza kahle kokukhiqiza, yonga u-50% kagesi, kanye no-50% wokutshalwa kwezimali kwemishini.Ngo-2009, yagunyazwa yi-China Carbon Industry Association, i-Shenyang Aluminium Magnesium Design Institute Co., Ltd., i-Guiyang Aluminium Magnesium Design and Research Institute Co., Ltd., kanye nochwepheshe abambalwa basekhaya abaziwayo bekhabhoni ukuze babambe iqhaza ekuhloleni impumelelo yesifundazwe neyongqongqoshe yesayensi nezobuchwepheshe.I-double-layer preheating kneader ingeyokuqala kohlobo lwayo ezindlini nakwamanye amazwe, ifinyelela ezingeni elihamba phambili lamazwe ngamazwe lemikhiqizo efanayo.