Reaction of ferrosilicon smelting: SiO2+2C=Si+2CO↑
SiO2 molecular weight 28+2×16=60(Si molecular weight 28)
98 kilograms of silicon dioxide in the amount of silicon is: 28/60 × 98 = 45.7 kilograms
1. Calculate the amount of steel chips added to smelt 75 ferrosilicon
Smelt 75 ferrosilicon, silicon recovery rate of 92%, so the amount of silicon into the ferrosilicon: 45.7 × 42 = 42 kg
75 ferrosilicon silicon content according to 75%, iron content according to 23% calculation, the amount of iron should be added: 23/75 × 42 = 13.6 kg
The iron content of steel chips is 95%, so the amount of steel chips added is: 100/95×13=13.6kg.
100/95 × 13 = 13.6 kilograms
2. Calculate the smelting 45 ferrosilicon drink chips added to the amount of insufficient
Calculation method and smelting 75 ferrosilicon steel chips to add the amount of calculation is basically the same, but because of smelting 45 ferrosilicon, furnace temperature is lower silicon loss is less, therefore, the recovery rate of silicon is higher, according to 96% calculation.
100 kilograms of silica into the amount of silicon in ferrosilicon as:
100×98%×28/60×96%=43.9 kilograms
Smelting 45 ferrosilicon, the content of ferrosilicon according to 45%, iron content is calculated according to 53%, the amount of iron added is: 53/45 × 43.9 = 51.6 kg
The iron content of steel chips is 95%, so the amount of steel chips added is.
51.6×100/95=54kg.
