Green low-creep MgO-C brick and preparation method thereof
A low-creep, green technology, applied in the field of green low-creep MgO-C bricks and its preparation, can solve problems such as complex process, increased production cost, and significant environmental impact, and achieve improved accumulation form, enhanced environmental protection effect, and environmental protection good effect
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Embodiment 1
[0038] A green low-creep MgO-C brick and a preparation method thereof. The preparation method described in this embodiment is:
[0039] The first step, according to the mass ratio of fused magnesia fine powder: titanium diboride fine powder: triethanolamine is 100: (2~3): (4~5), the described fused magnesia fine powder, the The titanium diboride fine powder and the triethanolamine are added into a vertical heating mixer, and mixed uniformly under the condition of 130-135° C. to prepare a mixed fine powder.
[0040] Second step, according to electric fused magnesia particle: described mixed fine powder material: flake graphite: the mass ratio of boric anhydride is 100: (40~42): (3~5): (2~3), described The fused magnesia particles, the mixed fine powder, the graphite flakes and the boric anhydride are added into a vertical heating mixer, and mixed at 140-150°C for 6-8 minutes to prepare a premixed material.
[0041] In the third step, sequentially add 4 to 5 wt% of glycerin an...
Embodiment 2
[0046] A green low-creep MgO-C brick and a preparation method thereof. The preparation method described in this embodiment is:
[0047]The first step, according to the mass ratio of electric fused magnesia fine powder: titanium diboride fine powder: triethanolamine is 100: (2~3): (5~6), described electric fused magnesia fine powder, all The titanium diboride fine powder and the triethanolamine are added into a vertical heating mixer, and mixed uniformly under the condition of 130-135° C. to prepare a mixed fine powder.
[0048] Second step, by electric fused magnesia particle: described mixed fine powder material: flake graphite: the mass ratio of boric anhydride is 100: (41~43): (3~5): (2~3), described The fused magnesia particles, the mixed fine powder, the graphite flakes and the boric anhydride are added into a vertical heating mixer, and mixed at 140-150°C for 6-8 minutes to prepare a premixed material.
[0049] In the third step, sequentially add 4 to 5 wt% of glycerin...
Embodiment 3
[0054] A green low-creep MgO-C brick and a preparation method thereof. The preparation method described in this embodiment is:
[0055] The first step, according to the mass ratio of electric fused magnesia fine powder: titanium diboride fine powder: triethanolamine is 100: (3~4): (4~5), described electric fused magnesia fine powder, all The titanium diboride fine powder and the triethanolamine are added into a vertical heating mixer, and mixed uniformly under the condition of 130-135° C. to prepare a mixed fine powder.
[0056] Second step, according to electric fused magnesia particle: described mixed fine powder: flake graphite: the mass ratio of boric anhydride is 100: (42~44): (4~6): (2~3), described The fused magnesia particles, the mixed fine powder, the graphite flakes and the boric anhydride are added into a vertical heating mixer, and mixed at 140-150°C for 6-8 minutes to prepare a premixed material.
[0057] In the third step, sequentially add 4 to 5 wt% of glycer...
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