Composite brick and preparation method thereof
A composite brick and brick layer technology, applied in the field of refractory materials, can solve problems such as increased heat dissipation, high product cost, and potential safety hazards in the use of ladles
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[0038] The present invention also provides a method for preparing the above-mentioned composite brick, which includes the following steps:
[0039] A) Hot-end aluminum brick layer ingredients: 70-80 parts by weight of high-alumina clinker or mullite, 10-20 parts by weight of bonded clay, 1-10 parts by weight of silica powder, 6-8 parts by weight Phosphoric acid is mixed with 2 to 4 parts by weight of water to obtain hot-end aluminum brick layer mud;
[0040] Cold-end hollow spherical brick layer ingredients: 40-60 parts by weight of aluminum hollow balls or mullite hollow balls, 15-45 parts by weight of high-aluminum clinker or mullite, 10-20 parts by weight of bonded clay, Mix 1-10 parts by weight of silicon powder, 6-10 parts by weight of phosphoric acid and 2-4 parts by weight of water to obtain cold-end hollow spherical brick layer mud;
[0041] B) Provide a mold with a partition, add the hot-end aluminum brick layer mud and cold-end hollow spherical brick layer mud to both side...
Example Embodiment
[0051] Example 1
[0052] 1.1 Add 75 parts by weight of primary high-alumina clinker particles to the 800 mixer, then add 8 parts by weight of phosphoric acid, mix and grind for 2 minutes, then add 14 parts by weight of bound clay and 3 parts by weight of silica powder, and mix and grind After 15 minutes, add 3 parts by weight of water, mix for 5 minutes, and discharge to obtain hot-end aluminum brick layer mud.
[0053] 1.2 Add 40 parts by weight of alumina hollow spheres and 37 parts by weight of primary high-alumina clinker to the 800 mixer, then add 10 parts by weight of phosphoric acid, mix and grind for 2 minutes, and then add 20 parts by weight of bound clay and 3 Parts by weight of silicon powder are mixed and milled for 15 minutes, and then 3 parts by weight of water are added, mixed for 5 minutes, and discharged to obtain cold-end hollow spherical brick layer mud.
[0054] 1.3 Provide a mold with a partition, the partition is located at one third of the mold, add the hot-e...
Example Embodiment
[0056] Example 2
[0057] 2.1 Add 75 parts by weight of primary high-alumina clinker particles to the 800 mixer, then add 8 parts by weight of phosphoric acid, mix for 2 minutes, and then add 14 parts by weight of bound clay and 3 parts by weight of silica powder, and mix and grind After 15 minutes, add 3 parts by weight of water, mix for 5 minutes, and discharge to obtain hot-end aluminum brick layer mud.
[0058] 2.2 Add 45 parts by weight of alumina hollow spheres and 32 parts by weight of primary high-alumina clinker into the 800 mixer, then add 10 parts by weight of phosphoric acid, mix and grind for 2 minutes, and then add 20 parts by weight of bound clay and 3 Parts by weight of silicon powder are mixed and milled for 15 minutes, and then 3 parts by weight of water are added, mixed for 5 minutes, and discharged to obtain cold-end hollow spherical brick layer mud.
[0059] 2.3 Provide a mold with a partition, the partition is located at one-third of the mold, add the hot-end a...
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