Acid-resistant corundum ramming material and method for making acid regeneration furnace burner with it
A technology of ramming material and corundum, applied in the field of refractory materials, can solve the problems of many impurities, low softening temperature under load, blank and other problems, and achieve the effect of high refractoriness, convenient ramming and molding, and improving acid resistance.
Active Publication Date: 2022-05-13
上海彭浦特种耐火材料厂有限公司 +1
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Problems solved by technology
[0003] The traditional production method of acid regeneration furnace burner is mostly combined with high clay, more impurities, and lower softening temperature under load. Therefore, domestic iron and steel plants mostly use foreign technology. Now the domestic technology of acid-resistant corundum ramming material for acid regeneration furnace burner still relatively blank
Method used
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Embodiment 1
[0035] The composition of acid-resistant corundum ramming material is as follows according to mass measurement:
[0036] White corundum 5~3mm: 15 parts; White corundum 3~1mm: 26 parts; White corundum 1~0.1mm: 21 parts; White corundum 180 mesh: 14 parts; White corundum 320 mesh: 9 parts; Corundum powder: 3.5 parts; Alumina powder: 10 parts; soft clay: 1 part; pure calcium aluminate cement: 0.5 parts; plasticizer: 0.15 parts; aluminum dihydrogen phosphate: 5 parts; water: 2 parts.
Embodiment 2
[0038] The composition of embodiment 2 is basically the same as that of embodiment 1, the only difference is that the content of plasticizer is different, and the content of plasticizer is 0.1 part.
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Abstract
The invention provides an acid-resistant corundum ramming material and a method for using it to make an acid regeneration furnace burner. The acid-resistant corundum ramming material is composed of: 5-3mm white corundum: 12-16 parts; 3-1mm white corundum White corundum 1-0.1mm: 20-23 parts; White corundum 180 mesh: 12-16 parts; White corundum 320 mesh: 8-10 parts; Corundum fine powder: 3-5 parts; Alumina powder: 8-10 parts; soft clay: 1-2 parts; at the same time, 0.1-0.15 parts of plasticizer; and 3-6 parts of liquid binder aluminum dihydrogen phosphate. By adding plasticizer, clay and corundum powder, the ramming material prepared by the present invention is not only convenient for ramming and forming, but also has excellent acid resistance, compressive strength and chemical stability. Used at high temperature, high refractoriness and strong thermal stability.
Description
technical field [0001] The invention belongs to the field of refractory materials, and in particular relates to an acid-resistant corundum ramming material and a method for making a burner of an acid regeneration furnace using the ramming material. Background technique [0002] The acid regeneration furnace used in steel mills contains high-temperature acid gas inside, and the burner part is subjected to higher temperature and flame erosion, which requires higher acid resistance, wear resistance and high temperature resistance of the burner. [0003] The traditional production method of acid regeneration furnace burner is mostly combined with high clay, more impurities, and lower softening temperature under load. Therefore, domestic iron and steel plants mostly use foreign technology. Now the domestic technology of acid-resistant corundum ramming material for acid regeneration furnace burner Still relatively blank. Contents of the invention [0004] In view of the above-m...
Claims
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IPC IPC(8): C04B35/101C04B35/622C04B35/63
CPCC04B35/101C04B35/622C04B35/6309C04B2235/3222C04B2235/3208C04B2235/349C04B2235/5427C04B2235/5436C04B2235/6562C04B2235/6567C04B2235/9692
Inventor 李剑峰赵玲娣杨瑞德王礼玮
Owner 上海彭浦特种耐火材料厂有限公司