Production principle of lead ingot smelting in Shuikoushan
2020-07-08 10:16Introduction：Shuikoushan lead smelting process is a new patented lead smelting process developed independently by Hunan Shuikoushan Nonferrous Metals Group Co., Ltd. It belongs to the category of molten pool smelting, when the material is put into the
Shuikoushan lead smelting process is a new patented lead smelting process developed independently by Hunan Shuikoushan Nonferrous Metals Group Co., Ltd. It belongs to the category of molten pool smelting, when the material is put into the furnace and the heating is completed at the same time. Melting, oxidation, slagging, matte making and other processes, has a very high mass transfer, heat transfer function; The difference is that it uses a unique and simple equipment with superior metallurgical dynamic function-Shuikoushan smelting furnace. From the top of the furnace adding charge, the bottom of the oxygen-enriched air agitate the melting pool. Raw lead, high lead slag and flue gas are produced from lead discharge port, slag outlet and smoke outlet respectively.The water mouth mountain smelting furnace is a sealed long cylindrical horizontal converter , the steel plate shell is lined with chromium magnesium bricks , the furnace body is provided with a transmission device , the furnace body is provided with a transmission device , the furnace body is provided with a feeding port , a smoke discharging port , a slag discharging port , a lead discharging port , an oxygen lance , an oxygen lance and a sleeve brick thereof can be replaced , and the end wall fuel burner is used for opening and heat preservation .
Shuikoushan lead smelting process is a process of continuous melting pool smelting and blowing The invention relates to a method for smelting and blowing a continuous molten pool by using a water - mouth mountain lead smelting method , which comprises the following steps of : mixing and granulating a lead - containing material and a flux containing 6 - 7 percent of lead , continuously and uniformly adding into an oxygen bottom blowing furnace with a jet oxygen lance at the bottom , completing the drying , melting , oxidizing slag and lead - precipitating process of the material , realizing separation of lead and lead , producing coarse lead , flue gas and smelting slag .
The main reaction equations are as follows:
Oxidation slag reaction:
2FeS + 3O2 + SiO2 = 2FeO•SiO2 + 2SO2
2ZnS + 3O2 = 2ZnO + 2SO2
2PbS + 3O2 + SiO2= 2PbO•SiO2 + 2SO2
2PbS + 3O2 = 2Pb + 2SO2
2Pb + O2 = 2PbO
PbS + 2O2 = PbSO4
Lead deposition reaction:
PbS +O2 = Pb + SO2
2PbS +O2 = 2PbO + 2SO2
PbS +2PbO = 3Pb + SO2
