Manufacturing technique for enriching -iron
A production process and enrichment technology, applied in blast furnaces, furnace types, furnaces, etc., to achieve high economic benefits, ensure normal production, and alleviate the contradiction between supply and demand
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Embodiment 1
[0037] The production technique of enriching iron described in the present invention can be:
[0038] In the first step, the hematite (Fe 2 o 3 ) or sulfuric acid slag pulverization, the particle size is 1-100 mesh;
[0039] In the second step, the first step gain is mixed with additives, and its weight ratio is:
[0040] Hematite (Fe 2 o 3 ) or sulfuric acid slag powder: additive = 10: 3-8;
[0041] The additive is a mixture of fixed carbon (C) and calcium oxide (CaO); its weight ratio is: fixed carbon (C): calcium oxide (CaO) = 10: 0.1-2;
[0042] The third step is to make the product obtained in the second step into a ball or put it in a sagger, and then send it into various kilns and heat it to 1300-1400°C. After heating for 60-80 hours, it will leave the kiln to enrich iron.
Embodiment 2
[0044] The production technique of enriching iron described in the present invention can also be:
[0045] In the first step, the hematite (Fe 2 o 3 ) or crushed sulfuric acid slag, with a particle size of 100-150 mesh;
[0046] In the second step, the first step gain is mixed with additives, and its weight ratio is:
[0047] Hematite (Fe 2 o 3 ) or sulfuric acid slag powder: additive = 10: 8-11;
[0048] Described additive is the mixture of fixed carbon (C) and calcium oxide (CaO); Its weight ratio is:
[0049] Fixed carbon (C):calcium oxide (CaO)=10:2-4;
[0050] In the third step, the product obtained in the second step is made into a ball or packed in a sagger, and then sent to various kilns and heated to 900-1300°C for 30-50 hours to enrich iron.
Embodiment 3
[0052] The production technique of enriching iron described in the present invention can also be:
[0053] In the first step, the hematite (Fe 2 o 3 ) or crushed sulfuric acid slag, with a particle size of 150-300 mesh;
[0054] In the second step, the first step gain is mixed with additives, and its weight ratio is:
[0055] Hematite (Fe 2 o 3 ) or sulfuric acid slag powder: additive = 10: 11-15;
[0056] Described additive is the mixture of fixed carbon (C) and calcium oxide (CaO); Its weight ratio is:
[0057] Fixed carbon (C):calcium oxide (CaO)=10:4-6;
[0058] In the third step, the product obtained in the second step is made into a ball or packed in a sagger, and then sent to various kilns and heated to 700-900°C. After heating for 10-20 hours, the iron is enriched when it comes out of the kiln.
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