A kind of manufacturing method of green pellet
A manufacturing method and technology of green pellets, applied in the field of metallurgical pellets, can solve the problems of difficult metallurgical waste, poor metallurgical performance, etc., and achieve the effects of low burning residue rate, strong cohesiveness, and improved grade
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Embodiment 1
[0024] A kind of high-performance pellets in this embodiment is composed of fine ore powder and a binder, and the quality of the binder is 1.1% of the mass of the powder concentrate, and the mass percentage of the powder concentrate is It is: magnetite powder: 10%, hematite powder: 88.5%, siderite powder: 1.5%; The iron taste of the iron ore powder and the iron taste of the hematite powder are greater than 65%, and the moisture content of the magnetite and hematite is 8.0%.
[0025] The binder components and contents used in this embodiment are as follows: 38 kg of bentonite, 7 kg of activated lime, 3 kg of polyethylene glycol, 3 kg of polyester resin, 1 kg of fly ash, 8 kg of sintered ore cuttings, 1 kg of zirconia, starch 5kg, salt 2kg, polyurethane 2kg, phenolic resin 3kg.
[0026] It is worth noting that the above-mentioned active lime is also called soft burnt lime, which is lime with small crystal grains, high porosity and low bulk density obtained at a calcination temp...
Embodiment 2
[0038] A kind of high-performance pellet ore of the present embodiment, its basic content is the same as embodiment 1, and difference is: the mass percent content of described concentrate powder composition is: magnetite powder: 14%, hematite Mineral powder: 85%, siderite powder: 1%.
[0039] The components and contents of the binder in this embodiment are as follows: 35kg of bentonite, 5kg of activated lime, 2kg of polyethylene glycol, 2kg of polyester resin, 1kg of fly ash, 5kg of sintered sieve, 1kg of zirconia, 4kg of starch, Salt 1kg, polyurethane 1kg, phenolic resin 2kg.
[0040] The preparation method of the adhesive used in the present embodiment, its steps are as follows:
[0041] (1) Take bentonite 35kg, active lime 5kg, polyethylene glycol 2kg and polyester resin 2kg by mass ratio, mix and stir in a mixer for 25 minutes, the stirring speed is 250r / min, and mix uniformly to obtain mixture A;
[0042] (2) Weigh 1kg of fly ash, 5kg of sinter sieve and 1kg of zirconia...
Embodiment 3
[0047] A kind of high-performance pellet ore of the present embodiment, its basic content is the same as embodiment 1, the difference is: the mass percent content of described concentrate powder composition is: magnetite powder: 5%, hematite Mineral powder: 93%, siderite powder: 2%.
[0048] The components and contents of the binder in this embodiment are as follows: 42kg of bentonite, 8kg of activated lime, 4kg of polyethylene glycol, 3kg of polyester resin, 2kg of fly ash, 9kg of sintered ore cuttings, 1kg of zirconia, starch 7kg, salt 3kg, polyurethane 3kg, phenolic resin 4kg.
[0049] The preparation method of the adhesive used in the present embodiment, its steps are as follows:
[0050] (1) Take bentonite 42kg, active lime 8kg, polyethylene glycol 4kg and polyester resin 3kg by mass ratio, mix and stir in the mixer for 30 minutes, stirring speed is 250r / min, mix to obtain mixture A;
[0051] (2) Weigh 2kg of fly ash, 9kg of sinter sieve and 1kg of zirconia according to...
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