Weifang Xinbeihai Hot Dip Galvanizing Equipment Co., Ltd.
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Environmental Friendly Hot Dip Galvanizing Furnace Equipment Production Line Galvanizing White Fume Treatment Supplier
The white fume is produced from the hot dip galvanizing process. Generally, the molten zinc surface can quickly form an oxide layer, and the amount of fume is less. But once the workpiece dips in and takes out of the zinc kettle, the fume increases suddenly because of the stirring and volatilization of the fluxing agent.
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Treatment effect prediction table:
| Pulse bag filter | White Fume |
| Inlet gas concentration | 257 mg/m3 |
| Outlet gas concentration | 25 mg/m3 |
| Removal rate | 95 % |
| Emission concentration | 25 mg/m3 |
| Emission standard | 120 mg/m3 |
| Emission rate | 2.1 kg/h |
| No. | HDG Process | Equipment | Use | Need Or not (√) |
| 1 | Pickling | Enclosed pretreatment workshop | Collect acid fume | |
| Acid fume treatment equipment | Environment friendly | |||
| Pickling electric hoist/crane | Transfer | |||
| 2 | Rinsing | Wastewater treatment equipment | Environment friendly | |
| 3 | Degreasing | Waste heat recycling system | Save energy | |
| 4 | Rinsing | Wastewater treatment equipment | Environment friendly | |
| 5 | Fluxing | Waste heat recycling system | Save energy | |
| Iron removal equipment | Recycling | |||
| 6 | Galvanizing | Galvanizing furnace body | For heating | |
| Zinc kettle | Place zinc | |||
| White fume fixed hood | Collect fume | |||
| White fume treatment equipment | Environment friendly | |||
| Bridge crane/ electric hoist | Transfer | |||
| 7 | Cooling | Cooling tower | Recycling | |
| 8 | Passivation | Chromium-free passivator | Good effect | |
| 9 | Auxiliary | Bridge crane/Flat trolley/Material rack/Transfer pit | Transfer | |
| Tank’s anti-corrosion protection | Safety | |||
| Zinc ingot/Chemicals/Alloy | Necessity |
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