A kind of sintering raw material composition and acidic vanadium-titanium sinter and its preparation method and application
A technology of vanadium-titanium sinter and raw material composition, applied in the application of acidic vanadium-titanium sinter as furnace protection sinter in blast furnace smelting, acidic vanadium-titanium sinter, sintering raw material composition, preparation of acidic vanadium-titanium sinter field, it can solve the problems of high cost, complicated equipment, and incapable of fixed-point delivery of high-titanium powder, and achieve the effect of low production cost and simple preparation method
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[0021] The preparation method of acidic vanadium-titanium sintered ore provided by the invention comprises the following steps:
[0022] (1) Mixing the above-mentioned sintering raw material composition, returning ore and water to obtain a mixture;
[0023] (2) Distributing and sintering the mixture described in step (1) sequentially.
[0024] In the present invention, there is no special limitation on the process of mixing materials in step (1). Preferably, the process of mixing materials may include: primary mixing and mixing and secondary mixing and granulation. The method of mixing and mixing may include mixing the sintered raw material composition, returning ore and water for 4-5 minutes, wherein the amount of water makes the water content of the mixture obtained in the mixing and mixing process 7-7.5% by weight %, the amount of the returned ore is 20-30 parts by weight; the method of the second mixing granulation can include mixing the mixture obtained by the first mixi...
Embodiment 1
[0042] This example is used to illustrate the acidic vanadium-titanium sintered ore of the present invention and its preparation method.
[0043] Sea-sand vanadium-titanium magnetite concentrate powder, bentonite and coke powder are batched according to the proportions in Table 1, and then mixed with returned ore and water (including first mixing and second mixing granulation), wherein, returning ore And the consumption of water is as shown in table 1, obtains mixture, and the water content of mixture is 7.5% by weight, and the mixture of particle size not less than 3mm accounts for more than 65% by weight in the mixture.
[0044] First arrange the base material with a height of 25mm, then use the magnetic roller distributor to distribute the above-mentioned mixture, and press the material (30mm under the control material layer), so that the height of the material layer is 570mm, and then add the mixture to the chain Sintering is carried out on a trolley with a grate length of...
Embodiment 2
[0047] This example is used to illustrate the acidic vanadium-titanium sintered ore of the present invention and its preparation method.
[0048] Sea-sand vanadium-titanium magnetite concentrate powder, bentonite and coke powder are batched according to the proportions in Table 1, and then mixed with returned ore and water (including first mixing and second mixing granulation), wherein, returning ore And the consumption of water is as shown in table 1, obtains mixture, and the water content of mixture is 8% by weight, and the mixture of particle size not less than 3mm accounts for more than 70% by weight in the mixture.
[0049] First arrange the base material with a height of 30mm, then use the magnetic roller distributor to distribute the above-mentioned mixture, and press the material (control the material layer to press down 40mm), so that the height of the material layer is 600mm, and then add the mixture to the chain Sintering is carried out on a trolley with a grate len...
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Abstract
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