Method for preparing ferro-coke by cold pressing of steel slag and iron ore powder
A technology of iron ore powder and steel slag, which is applied in coking ovens, special forms of dry distillation, petroleum industry, etc., can solve the problems of restricting the promotion and use of coking coal-free areas, failing to achieve high reactivity coke, and limited coke saving effect. Broad industrial application prospects, easy operation, and the effect of reducing energy consumption
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Embodiment 1
[0038]The main composition of steel slag is shown in Table 1, the main composition of iron ore powder is shown in Table 2, the chemical composition of 1 / 3 coking coal is shown in Table 3, the chemical composition of anthracite is shown in Table 4, and the chemical composition of lean coal is shown in Table 5. The particle size of steel slag is less than 0.15mm, of which 60% is less than 0.075mm. 95% of iron ore powders have a particle size of no more than 0.15 mm. The particle size of 1 / 3 coking coal powder is less than 0.15mm, of which the particle size is less than 0.075mm, accounting for 80%. Lean coal with a particle size of less than 0.15mm accounts for 90%, of which 80% has a particle size of less than 0.075mm. The particle size of anthracite is less than 0.15mm, of which 70% is less than 0.075mm.
[0039] Table 1 The main components of a steel slag (mass fraction)
[0040]
[0041] Table 2 Main components (mass fraction) of a certain iron ore powder
[0042]
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Embodiment 2
[0052] The main composition of steel slag is shown in Table 6, the main composition of iron ore powder is shown in Table 7, the chemical composition of 1 / 3 coking coal is shown in Table 8, the chemical composition of anthracite is shown in Table 9, and the chemical composition of lean coal is shown in Table 10. The particle size of steel slag is less than 0.15mm, of which 70% is less than 0.075mm. 90% of iron ore powders have a particle size of no more than 0.15 mm. The particle size of 1 / 3 coking coal powder is less than 0.15mm, among which the particle size is less than 0.075mm, accounting for 75%. Lean coal with particle size less than 0.15mm accounts for 85%, of which particle size is less than 0.075mm accounts for 85%. The particle size of anthracite is less than 0.15mm, of which 75% is less than 0.075mm.
[0053] Table 6 The main components of a steel slag (mass fraction)
[0054]
[0055] Table 7 The main components of a certain iron ore powder (mass fraction)
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Embodiment 3
[0066] The main composition of steel slag is shown in Table 11, the main composition of iron ore powder is shown in Table 12, the chemical composition of 1 / 3 coking coal is shown in Table 13, the chemical composition of anthracite is shown in Table 14, and the chemical composition of lean coal is shown in Table 15. The particle size of steel slag is less than 0.15mm, of which 65% is less than 0.075mm. 90% of iron ore powders have a particle size of no more than 0.15mm. The particle size of 1 / 3 coking coal powder is less than 0.15mm, among which the particle size is less than 0.075mm, accounting for 78%. Lean coal with a particle size of less than 0.15mm accounts for 94%, of which 85% has a particle size of less than 0.075mm. The particle size of anthracite is less than 0.15mm, of which 75% is less than 0.075mm.
[0067] Table 11 The main components of a steel slag (mass fraction)
[0068]
[0069] Table 12 Main components (mass fraction) of a certain iron ore powder
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