Sintering prevention vanadium-containing stone coal microwave roasting method
A microwave roasting and anti-sintering technology is applied in the field of vanadium extraction from stone coal, which can solve the problems of reducing material sintering, affecting the forward progress of vanadium-containing stone coal and its roasting effect, etc., so as to improve air permeability, reduce sintering phenomenon, and achieve good effect. Effect
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Embodiment 1
[0023] An anti-sintering microwave roasting method for vanadium-containing stone coal. The concrete steps of described method are:
[0024] Step 1. First crush the vanadium-containing stone coal until the particle size is less than 6mm, and then divide it into coarse-grained vanadium-containing stone coal and fine-grained vanadium-containing stone coal. The particle size of the coarse-grained vanadium-containing stone coal is less than 6mm and greater than or equal to 1mm, the particle size of fine-grained vanadium-containing stone coal is less than 1mm.
[0025] Step 2. According to the mass ratio of fine-grained vanadium-containing stone coal to water: 1:0.06~0.07, add water to the fine-grained vanadium-containing stone coal, granulate, and obtain pellets with a particle size of 3-8 mm, and dry , to obtain dried pellets.
[0026] Step 3: Place the dried pellets in an industrial microwave roasting equipment as a base material and spread them on the bottom layer,...
Embodiment 2
[0030] An anti-sintering microwave roasting method for vanadium-containing stone coal. The concrete steps of described method are:
[0031] Step 1. First crush the vanadium-containing stone coal until the particle size is less than 6mm, and then divide it into coarse-grained vanadium-containing stone coal and fine-grained vanadium-containing stone coal. The particle size of the coarse-grained vanadium-containing stone coal is less than 6mm and greater than or equal to 1mm, the particle size of fine-grained vanadium-containing stone coal is less than 1mm.
[0032] Step 2. According to the mass ratio of fine-grained vanadium-containing stone coal to water: 1:0.07~0.08, add water to the fine-grained vanadium-containing stone coal, granulate, and obtain pellets with a particle size of 3-5mm, and dry , to obtain dried pellets.
[0033] Step 3: Place the dried pellets in an industrial microwave roasting equipment as a base material and spread them on the bottom lay...
Embodiment 3
[0037] An anti-sintering microwave roasting method for vanadium-containing stone coal. The concrete steps of described method are:
[0038] Step 1. First crush the vanadium-containing stone coal until the particle size is less than 6mm, and then divide it into coarse-grained vanadium-containing stone coal and fine-grained vanadium-containing stone coal. The particle size of the coarse-grained vanadium-containing stone coal is less than 6mm and greater than or equal to 1mm, the particle size of fine-grained vanadium-containing stone coal is less than 1mm.
[0039] Step 2. According to the mass ratio of fine-grained vanadium-containing stone coal to water: 1:0.08~0.09, add water to the fine-grained vanadium-containing stone coal, granulate, and obtain pellets with a particle size of 5-8mm, and dry , to obtain dried pellets.
[0040] Step 3: Place the dried pellets in an industrial microwave roasting equipment as a base material and spread them on the bottom lay...
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