A black smear material for waste magnesia carbon bricks
A technology for waste magnesia carbon bricks and smears, applied in the field of black smears for waste magnesia carbon bricks, can solve the problems of excess function, large insurance factor, material waste, etc., and achieve the effects of compact structure, convenient construction and cost reduction.
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Embodiment 1
[0015] Example 1, the mass percent of each component in the waste magnesia carbon brick black smear is: waste magnesia carbon brick 50wt%, forsterite 35wt%, magnesia fine powder 13.8wt%, newspaper fiber 0.1wt%, binding agent 0.1wt%.
Embodiment 2
[0016] Example 2, the mass percent of each component in the waste magnesia carbon brick black smear is: waste magnesia carbon brick 45wt%, forsterite 40wt%, magnesia fine powder 14.8wt%, newspaper fiber 0.08wt%, binding agent 0.12wt%.
Embodiment 3
[0017] Example 3, the mass percent of each component in the waste magnesia carbon brick black smear is: waste magnesia carbon brick 54.8wt%, forsterite 30wt%, magnesia fine powder 15wt%, newspaper fiber 0.1wt%, binding agent 0.1wt%.
[0018] The above-mentioned waste magnesia carbon brick black smear preparation method comprises the following steps successively:
[0019] a) The massive waste magnesia carbon bricks are broken into large particles with a jaw crusher;
[0020] b) Use a roller crusher to pulverize the large particles into small particles with a particle diameter of 0-3 mm;
[0021] c) Part of the small particles are finely ground into a fine powder with a particle size of 0.088mm by a ball mill;
[0022] d) Sieve the small particles according to different particle sizes, take small particles with a particle size of 0-1mm: 15wt-18%; small particles with a particle size of 1-3mm: 25-28wt%;
[0023] e) Take fine powder with a particle size of 0.088mm: 5-9wt%;
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