Application of shaft furnace in baking full-vanadium ferrotitanium ore concentrate pellet ore
A vanadium-titanium-iron concentrate and pellet technology, which is applied in shaft furnaces, furnaces, furnace types, etc., can solve the problems of reduced FeO content and compressive strength, and has not been widely used, so as to increase the pelleting rate and meet the Subsequent process requirements and roasting needs, the effect of reducing costs
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Embodiment 1
[0026] The raw materials (full vanadium ilmenite concentrate and bentonite in a ratio of 98.8:1.2) are automatically batched by an electronic belt scale, and then transported by a belt into a drum drying mixer for mixing and dehydration. After mixing and dehydration The moisture content of the mixture is 5%, and then sent to the moistening mill for moistening and grinding, so that the particle size of the raw material -200 mesh increases by about 10%, and then enters the disc pelletizing machine for pelletizing. The size of the disc pelletizing machine is Φ6000×700mm (side height), rotation speed 8r / min, inclination angle 46.5°, water addition method is to add water to the upper and lower parts of the pelletizing disc at the same time, and the amount of water added is 1-2% of the weight of raw materials.
[0027] After the green balls are screened by the sieving machine, the green balls with a diameter of 8-16mm are evenly distributed to the drying bed of the shaft furnace by t...
Embodiment 2
[0033] After the raw materials (full vanadium ilmenite concentrate and bentonite in the ratio of 98.8:1.2) are automatically batched by the electronic belt scale, they are transported by the belt into the drum drying mixer for mixing and dehydration. After mixing and dehydration The moisture content of the mixture is 5.2%, and then it is sent to the moistening mill for moistening and grinding, so that the particle size of the raw material -200 mesh increases by about 10%, and then enters the disc pelletizing machine for pelletizing. The size of the disc pelletizing machine is Φ6000×700mm (Side height), speed 8r / min, inclination angle 46.5°, the water addition system of the disc pelletizer is connected to a bypass system to connect to the sludge tank, and the converter sludge slurry is sent to the pelletizing disc by a pump, and pelletized in the disc Spray converter sludge slurry with 2 to 4% of raw material weight instead of water when making pellets.
[0034] After the green...
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