METHOD AND DEVICE FOR CONTROLLING FLOW OF LIQUID ZINC IN ZINC POT FOR HOT-DIP GALVANIZATION
FIG4 is a schematic view showing the traveling wave magnetic field generator and the liquid zinc driving principle of the present invention 
FIG4 is a schematic view showing the traveling wave magnetic field generators and the liquid zinc driving principle of the present invention. The traveling wave magnetic field generator 71 includes an iron core 10, a plurality of electromagnetic wire windings (11-15) passing through alternating current at a specific frequency, and a shell 17. When the alternating current of different electromagnetic wire windings changes according to different phases, traveling wave magnetic fields are excited (shown as the magnetic line 16). The traveling wave magnetic field generates an electromagnetic driving force for cutting the magnetic line on liquid zinc to drive the flow of the liquid zinc 2, and the flow direction is as indicated by arrows 21 and 22.
schematic view
17
shell
22
arrows
4
furnace snout
2
liquid zinc
16
magnetic line
10
iron core
21
arrows
71
wave magnetic field generator wave magnetic field generators
['1. A method for controlling flow of liquid zinc in a zinc pot for hot-dip galvanization, wherein under blowing effects of an air knife above the zinc pot for hot-dip galvanization onto strip steel, the liquid zinc diffuses and flows outwards to zones comprising the left side, the right side, the front end of the zinc pot, respectively, and a zone between the strip steel and a furnace snout, and surface dross rapidly generated on the surface of the liquid zinc is driven to flow outwards to the zones; and wherein on edge sides of the zones, traveling wave magnetic field generators are arranged in multiple sections above the surface of the liquid zinc in the zinc pot, so as to excite a traveling wave magnetic field to generate an electromagnetic driving force on the liquid zinc, driving the liquid zinc to flow; flowing of the liquid zinc caused by the traveling wave magnetic field generators is engaged with blow-flowing of the air knife, driving the liquid zinc on the surface of the zinc pot to flow in order towards the rear end of the zinc pot; the surface dross floating on the surface of the liquid zinc is driven by the flowing liquid zinc to flow in a controlled direction.']