Chinese-made refractory pouring material for flash furnace, Osmant furnace, import metallurgical furnace
A refractory castable and metallurgical furnace technology, applied in the field of refractory materials for industrial kilns, can solve problems such as the collapse of the roof of the furnace, the collapse of the roof, the impact on production, and the inability of the system to operate normally.
Inactive Publication Date: 2003-04-30
洛阳市洛华粉体工程特种耐火材料有限公司
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Problems solved by technology
However, the top of the furnace in the depleted area is poured with refractory materials selected from abroad. There are frequent accidents of furnace top collapse and severe spalling, with an average of 4 to 5 times per year. In the later stage, production will even be shut down for emergency repairs every month, and the loss of millions of dollars will be lost each time. Yuan, causing the whole system not to operate normally, the process cannot be stabilized, seriously affecting the production
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[0010] The components and proportioning of the refractory castable of the present invention can be (Wt%): high aluminum, corundum mixed particles 8-12mm 25 (high aluminum particles 15, corundum particles 10) high aluminum, corundum mixed particles 5-8mm 25 (high Aluminum particles 15, corundum particles 10) high aluminum, corundum mixed particles 3-5mm 15 (high aluminum particles 10, corundum particles 5) steel 3-0mm 8180 mesh high alumina powder 10180 mesh corundum powder 8 composite aluminate cement 5Si-Al Superfine Powder 2 Sodium Tripolyphosphate Microalloy Fiber 2
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Abstract
A refractory for imported metallurgical furnace (flash furnace, etc) is prepared from the high-aluminium and corundum particles as aggregate (60-80 wt.%), high-aluminium and corundum powders mixture (10-30), binder (composite aluminate cement, superfine Si-Al powder and sodium tripolyphosphate) (5-10), and alloy fibres as reinforcing component (1-5). Its advantages is high P / C ratio.
Description
(1) Technical field: [0001] The invention belongs to the technology of refractory materials for industrial kilns, and mainly provides a localized refractory castable for imported metallurgical furnaces of flash furnaces and ottoman furnaces. (two) background technology: [0002] Jinchuan Company introduced nickel flash furnace from Finland in the early 1990s. It is a Karl Gullie flash furnace type and consists of four parts: reaction tower, sedimentation tank, ascending flue and depletion zone; the depletion zone of the flash furnace is a flash furnace. An important part of the flash furnace, its main function is to deplete the flash furnace slag. However, the top of the furnace in the depleted area is poured with refractory materials selected from abroad. There are frequent accidents of furnace top collapse and severe spalling, with an average of 4 to 5 times per year. In the later stage, production will even be shut down for emergency repairs every month, and the loss of m...
Claims
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IPC IPC(8): C04B35/10C04B35/101
Inventor 李朝侠黄兴远黄河
Owner 洛阳市洛华粉体工程特种耐火材料有限公司