Efficient energy-saving refractory material and preparation method thereof
A refractory, high-efficiency and energy-saving technology, applied in the field of refractories, can solve the problems of poor resistance to salt-alkali and heavy metal oxide erosion, poor mechanical toughness, and reduced service life of refractory materials, and achieves stable and improved corrosion resistance and chemical properties. The effect of toughness and mechanical strength, good fire resistance and insulation performance
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Embodiment 1
[0031] A high-efficiency and energy-saving composite refractory material, including the following raw materials in parts by weight: 32 parts of magnesium oxide, 45 parts of calcium oxide, 42 parts of modified zirconia fiber, 29 parts of high-silicon coal gangue, 38 parts of high-alumina red mud, and 22 parts of binder 24 parts and plasticizer.
[0032] A method for preparing a high-efficiency and energy-saving composite refractory material, comprising the following preparation steps:
[0033] a. Mix magnesium oxide and calcium oxide to remove impurities with clean water and magnetic separation to remove iron, then dry at 82°C, and pulverize with a pulverizer to pass through a 600-mesh sieve to obtain a mixture 1;
[0034] b. Add modified zirconia fiber, high-silicon coal gangue, and high-alumina red mud to mixture 1, mix evenly, and send it to a high-temperature furnace for pre-sintering treatment to obtain mixture 2;
[0035] c. Add binder to mixture 2, heat and stir at 84°C...
Embodiment 2
[0044] A high-efficiency and energy-saving composite refractory material, including the following raw materials in parts by weight: 38 parts of magnesium oxide, 40 parts of calcium oxide, 39 parts of modified zirconia fiber, 36 parts of high-silicon coal gangue, 35 parts of high-alumina red mud, and 27 parts of binder 29 parts and plasticizer.
[0045] A method for preparing a high-efficiency and energy-saving composite refractory material, comprising the following preparation steps:
[0046] a. Mix magnesium oxide and calcium oxide to remove impurities with clean water and magnetic separation to remove iron, then dry at 85°C, and use a pulverizer to pulverize until passing through a 600-mesh sieve to obtain a mixture 1;
[0047] b. Add modified zirconia fiber, high-silicon coal gangue, and high-alumina red mud to mixture 1, mix evenly, and send it to a high-temperature furnace for pre-sintering treatment to obtain mixture 2;
[0048] c. Add binder to mixture 2, heat and stir...
Embodiment 3
[0057] A high-efficiency and energy-saving composite refractory material, comprising the following raw materials in parts by weight: 37 parts of magnesium oxide, 1 part of calcium oxide, 40 parts of modified zirconia fiber, 35 parts of high-silicon coal gangue, 36 parts of high-alumina red mud, and 26 parts of binder 28 parts and plasticizer.
[0058] A method for preparing a high-efficiency and energy-saving composite refractory material, comprising the following preparation steps:
[0059] a. Mix magnesium oxide and calcium oxide to remove impurities with clean water and magnetic separation to remove iron, then dry at 85° C., and use a pulverizer to pulverize until passing through a 500-mesh sieve to obtain a mixture 1;
[0060] b. Add modified zirconia fiber, high-silicon coal gangue, and high-alumina red mud to mixture 1, mix evenly, and send it to a high-temperature furnace for pre-sintering treatment to obtain mixture 2;
[0061] c. Add binder to mixture 2, heat and sti...
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