Hot galvanizing device and hot galvanizing method applicable to same
A technology of hot-dip galvanizing and heating chamber, applied in hot-dip galvanizing process, coating, metal material coating process, etc., can solve the problem of thick zinc layer thickness, reduce the thickness of zinc layer, increase fluidity, reduce effect of cooling
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[0023] Example 1, see figure 1 , A hot-dip galvanizing device, including heating furnace 1, fan 2, air knife 3 and zinc pot 4.
[0024] A shield 12 is provided on the furnace wall 11 of the heating furnace. A heating chamber 13 is formed between the shield 12 and the furnace wall 11 of the heating furnace. The heating chamber 13 is a channel structure extending spirally along the circumferential direction of the heating furnace 1. The heating chamber 13 is provided with a heating chamber air inlet 131 and a heating chamber air outlet 132. The heating chamber air inlet 131 and the heating chamber air outlet 132 are located at both ends of the heating chamber 13 in the longitudinal direction. A heat insulation chamber 14 is provided in the shield 12. The heat insulation chamber 14 is a channel structure extending spirally along the circumferential direction of the heating furnace 1. The heat insulation chamber 14 is located on the side of the heating chamber 13 away from the fu...
Example Embodiment
[0031] Example two, see Figure 4 The difference from the first embodiment is that the sealing method between the air outlet of the heating chamber and the air inlet of the fan is different. The specific sealing method is: the air outlet 132 of the heating chamber is provided with a flange 15 protruding from the surface of the shield 12. The air inlet 21 of the fan is provided with an outer flange 23. A sealing pipe 5 is provided between the air outlet 132 of the heating chamber and the air inlet 21 of the fan.
[0032] The sealing tube 5 includes a base 51, an annular connection groove 52 provided on the base 51, a first sealing lip 53 and a second sealing lip 54. Both the base 51 and the connecting groove 52 are dense bodies made of rubber materials. A shield sealing lip 55 is provided on the end surface of the outer side wall 521 of the connecting groove. The shield sealing lip 55 is a sponge body made of sponge material. Support bars 56 are provided on the peripheral surfa...
Example Embodiment
[0034] Example three, see Image 6 The difference from the second embodiment is that the shield part sealing lip is not provided, but the flange 15 is directly sealed and fixed to the support bar 56 and the crimping fin 57 to realize the connecting groove and the heating chamber air outlet 132's seal.
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