Method for efficiently preparing low-cost carbonized brick by utilizing steel slags
A low-cost, carbonized brick technology, applied in the field of comprehensive utilization of resources, can solve the problems of difficult utilization of steel slag carbonized products, low efficiency and high preparation cost, and achieve the effects of accelerating carbonization rate, flexible operation and high carbonization rate.
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[0034] Example 1:
[0035] Step 1. Dry the steel slag to a moisture content of 0 to 1%, and the dried steel slag is ground to a specific surface area of 400kg / m. 2 And 600kg / m 2 Two parts; and the steel slag mixture is uniformly mixed according to the mass ratio of 1:1; the desulfurized gypsum is dried to a moisture content of 0 to 1%, and the dried desulfurized gypsum is ground to a specific surface area of 650kg / m 2 ; Dry the iron tailings to a moisture content of 0 to 1%, and grind the dried iron tailings to a specific surface area of 450kg / m 2 ;
[0036] Step 2. According to the weight percentage on a dry basis, the raw materials prepared in step 1 are prepared according to the steel slag 84.6%, the desulfurized gypsum 5.4%, and the iron tailings 10% to prepare the mixed dry material, and add 20% of the total mass of the mixed dry material to the mixed dry material Stir the water for 180 seconds to obtain the mixed wet powder;
[0037] Step 3: Weigh a certain amount of the ...
Example Embodiment
[0041] Example 2:
[0042] Step 1. Dry the steel slag to a moisture content of 0 to 1%, and the dried steel slag is ground to a specific surface area of 400kg / m. 2 And 600kg / m 2 Two parts; and the steel slag mixture is uniformly mixed according to the mass ratio of 1:1; the desulfurized gypsum is dried to a moisture content of 0 to 1%, and the dried desulfurized gypsum is ground to a specific surface area of 650kg / m 2 ; Dry the ultra-basic rock iron tailings to a moisture content of 0 to 1%, and grind the dried iron tailings to a specific surface area of 450kg / m 2 ;
[0043] Step 2. According to the dry weight percentage, the raw materials prepared in step 1 are prepared according to 47% steel slag, 3% desulfurized gypsum, and 50% iron tailings to prepare a mixed dry material, and add 20% of the total mass of the mixed dry material to the mixed dry material Stir the water for 180 seconds to obtain the mixed wet powder;
[0044] Step 3. Weigh a certain amount of the mixed wet po...
Example Embodiment
[0048] Example 3:
[0049] Step 1. Dry the steel slag to a moisture content of 0 to 1%, and the dried steel slag is ground to a specific surface area of 400kg / m. 2 And 600kg / m 2 Two parts; and the steel slag mixture is uniformly mixed according to the mass ratio of 1:1.5; the desulfurized gypsum is dried to a moisture content of 0 to 1%, and the dried desulfurized gypsum is ground to a specific surface area of 650kg / m 2 ; Dry the river sand to a moisture content of 0~1%;
[0050] Step 2. According to the dry weight percentage, the raw materials prepared in step 1 are prepared according to the steel slag 84.6%, the desulfurized gypsum 5.4%, and the river sand 10% to prepare the mixed dry material. Add 15% of the total mass of the mixed dry material to the mixed dry material. Stir for 180 seconds to obtain mixed wet powder;
[0051] Step 3. Weigh a certain amount of the mixed wet powder obtained in Step 2 and put it into a forming mold for compression molding, hold it under a moldi...
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