Flotation agent feeding system based on falling type coal slurry preprocessor

• Main Authors: YANG DONGDONG, XUE PENGCHENG, LI FANG, ZHU JINBO, ZHOU WEI, LUO LAIQIN, ZHENG GANGFENG
• Format: Patent
• Language: Chinese; English
• Published: 06.11.2013
• Subjects: MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TRANSPORTING

The utility model relates to the field of coal slurry preprocessors for preprocessing coal slime powder, and in particular relates to a flotation agent feeding system based on a falling type coal slurry preprocessor. The flotation agent feeding system at least comprises a water jetting shower nozzle for mixing water liquor and flotation agent and a secondary mixing unit; the liquid inlet end of the secondary mixing unit is fixedly connected with a mixed liquor outlet of the water jetting shower nozzle, and the inside section on the secondary mixing unit is a cross section-variable structure. According to the cross section-variable structure of the inside section on the secondary mixing unit, i.e., the inside section is gradually or suddenly changed along a mixed liquor falling path; when the initially-mixed mixed liquor jet out of the water jetting shower nozzle, i.e., the common emulsion, passes through the secondary mixing unit, the mixed liquor generates the phenomena such as the turbulent flow, the eddy c