Method for preparing continuous casting protection slag from using blast furnace water slag
A technology for continuous casting mold slag and blast furnace slag, which is applied in the field of blast furnace slag to prepare continuous casting mold slag, which can solve the problems of cumbersome process, high equipment cost, and difficulty in project approval and production, and achieve national resource saving, low production cost, and high technological efficiency. The effect of short process
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Embodiment 1
[0025] Main material: blast furnace slag
[0026] Auxiliary materials: fluorite, soda ash, wollastonite, carbonaceous materials
[0027] The mass percentage of raw materials is shown in Table 3
[0028] Table 3 Mold flux composition ratio
[0029] blast furnace slag
carbonaceous material
soda ash
50％
2.5％
20％
17.25％
10.25％
[0030] Preparation:
[0031] (1) Pulverization: Pulverize the blast furnace slag, fluorite, soda ash, wollastonite and carbonaceous materials among the above raw materials into particles of 0.1-1mm.
[0032] (2) Mixing: Mix the pulverized granules in proportion and mix thoroughly.
[0033] (3) Pulping: add 15% to 45% water to the mixed raw materials to make slurry.
[0034] (4) Drying: After direct drying in a high-temperature furnace at 300°C to 500°C, the finished powdery continuous casting mold powder can be obtained, or use a disc granulator to spray granulate, and d...
Embodiment 2
[0037] Main material: blast furnace slag
[0038] Auxiliary materials: fluorite, soda ash, wollastonite, carbonaceous materials
[0039] The mass percentage of raw materials is shown in Table 4
[0040] Table 4 Mold flux composition ratio
[0041] blast furnace slag
carbonaceous material
wollastonite
soda ash
fluorite
43％
4.5％
25％
17.25％
10.25％
[0042] Preparation:
[0043] (1) Pulverization: Pulverize the blast furnace slag, fluorite, soda ash, wollastonite and carbonaceous materials among the above raw materials into particles of 0.1-1mm.
[0044] (2) Mixing: Mix the pulverized granules in proportion and mix thoroughly.
[0045] (3) Pulping: add 15% to 45% water to the mixed raw materials to make slurry.
[0046] (4) Drying: After direct drying in a high-temperature furnace at 300°C to 500°C, the finished powdery continuous casting mold powder can be obtained, or use a disc granulator to spray granulate, and d...
Embodiment 3
[0049] Main material: blast furnace slag
[0050] Accessories: fluorite, soda ash, carbonaceous materials
[0051] The mass percentage of raw materials is shown in Table 5
[0052] Table 5 Mold flux composition ratio
[0053] blast furnace slag
carbonaceous material
fluorite
soda ash
65
3.6
10.12
21.28
[0054] Preparation:
[0055] (1) Pulverization: Pulverize the blast furnace slag, fluorite, soda ash and carbonaceous materials among the above raw materials into particles of 0.1-1 mm.
[0056] (2) Mixing: Mix the pulverized granules in proportion and mix thoroughly.
[0057] (3) Pulping: add 15% to 45% water to the mixed raw materials to make slurry.
[0058] (4) Drying: After direct drying in a high-temperature furnace at 300°C to 500°C, the finished powdery continuous casting mold powder can be obtained, or use a disc granulator to spray granulate, and dry it in a high-temperature furnace at 500°C to 900°C After roas...
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