Composite heat storage material based on steel slag-coal gangue and preparation method thereof
A technology of composite heat storage material and coal gangue, which is applied in the direction of heat exchange materials, ceramic material production, chemical instruments and methods, etc., can solve environmental protection and energy problems, environmental pollution, land occupation and other problems, and achieve low cost and reduction Cost, wide range of effects
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Embodiment 1
[0030] Adding steel slag for adding modified materials, sintering aids, coal gangue composites:
[0031] (1) Use the crusher to separate the steel slag, coal gangue, silicon powder, kaolin, zirconia, and screen according to the desired particle size using the sieve of the corresponding number of visits, and the larger particle size powder of the screen can be in the mortar. Ball milling is carried out using a ball mill for ball milling, continuing to refine until a particle size requirement is met, and the sieve screen is reused, and the sample powder required to obtain the desired particle size. Each powder is then placed in an oven at 100 ° C for 8 h.
[0032] (2) Taking the mass fraction, it is weighed, and after drying, 45 parts of the powder particle diameter of <10 μm, 40 parts of the powder particle diameter of <5 μm, silicon powder 3 of the powder particle size <1 μm 3 Part, kaolin, 3 zirconia, sintering aid, 3 parts of gratis oxide, 1 boron oxide, 3 parts of titanium oxid...
Embodiment 2
[0036] Adding steel slag for adding modified materials, sintering aids, coal gangue composites:
[0037] (1) Use the crusher to screened steel slag, coal gangue, silicon powder, kaolin, alumina, and use the sieve of the respective number of meshes according to the required particle size, and the larger particle size powder of the screen can be in the mortar. Ball milling is carried out using a ball mill for ball milling, continuing to refine until a particle size requirement is met, and the sieve screen is reused, and the sample powder required to obtain the desired particle size. Each powder is then placed in an oven at 120 ° C for 8 h.
[0038] (2) Taking the mass fraction, 35 parts of the steel slag of the powder particle diameter of <10 μm, 50 parts of the powder particle size of 5 μm, 3 parts of the powder particle size of <1 μm, 3 parts of the powder particle size of <1 μm, 4 parts of kaolin, 3 alumina, sintering aid 2 parts of zinc oxide, 2 parts of titanium oxide, 1 barium...
Embodiment 3
[0042] Adding steel slag for adding modified materials, sintering aids, coal gangue composites:
[0043] (1) Use the crusher to screened steel slag, coal gangue, silicon powder, alumina, zirconia, and use the sieve of the corresponding number of meshes using the desired granularity, and the sieved large particle size powder can be in the mortar The polishing is carried out or the ball mill is used for ball milling, continuing to refine until the particle size requirements are met, and the screen screen is reused, and the sample powder required for the required particle size is obtained. Each powder is then placed in an oven at 120 ° C for 8 h.
[0044] (2) After the mass fraction, 45 parts of steel slag after the powder particle size of <10 μm, 45 parts of the powder particle size of <5 μm, 2 parts of the powder particle size of <1 μm, 2 parts, 2 parts of alumina, 2 zirconia, 2 parts of titanium oxide, 1 corrurium oxide, 1 part of cerium oxide, and mixed with mixing until mixed un...
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