A kind of refractory ramming material for ferrosilicon electric furnace ladle and preparation method thereof

Abstract

The invention relates to a refractory ramming material for a ferrosilicon electric furnace ladle and a preparation method thereof. The mass percentage of raw materials is as follows: 71-85.5% of aggregate, 14-25% of powder, and 0.2-8% of anti-erosion agent , The binding agent is 0.6-2%. The aggregate includes silica and high alumina bauxite, the powder includes clay and graphite, the anti-corrosion agent includes silicon carbide powder and chromium slag powder, and the binder includes aluminum dihydrogen phosphate and aluminum polyphosphate. The advantages of the present invention are: the structural strength is high during use, and there will be no ladle leakage accidents caused by loosening, peeling and other damage during use, which ensures the safety of the surrounding personal and equipment during the ladle hoisting process, and will not occur The sticking phenomenon of molten iron avoids the encapsulation of molten iron in slag, improves the recovery rate of molten iron, and greatly improves safety and economy.

Description

technical field [0001] The invention belongs to the technical field of ferrosilicon production, and in particular relates to a refractory ramming material for a ferrosilicon electric furnace ladle and a preparation method thereof. Background technique [0002] In the production of ferrosilicon, the ladle containing molten iron is the main equipment. The quality of the ladle, especially the quality of the internal refractory material, directly affects the safety of the ladle during use (especially the occurrence of ladle wear accidents). , the recovery rate of molten iron and the workload of repairing packages. The ladle structure used in traditional ferrosilicon production is composed of steel shell and lining refractory material. The lining refractory material is usually built with clay bricks. There are many disadvantages in the process of use: for example, the safety factor is low, and ladle accidents or even leakage may occur from time to time. In the ladle accident, th...

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Problems solved by technology

The ladle structure used in traditional ferrosilicon production is composed of steel shell and lining refractory material. The lining refractory material is usually built with clay bricks. There are many disadvantages in the process of use: for example, the safety factor is low, and ladle accidents or even leakage may occur from time to time. In the ladle accident, the loss of each leaking ladle is at least 10,000 yuan, which brings great hidden dangers to the safety of people and equipment around the molten iron ladle lifting process. At the same time, the molten iron sticks to the ladle seriously. a great waste

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