A kind of iron ditch ramming material containing more than 90% waste refractories

Abstract

The invention belongs to the field of undetermined refractory materials and particularly relates to an iron runner ramming material containing 90% of waste refractories or above. The iron runner ramming material is prepared from, by mass, 56%-60% of waste carborundum brick particles, 5%-9% of waste aluminum carborundum brick powder, 10%-19% of waste 95 ceramic particles, 3%-7% of waste silicon carbide dust drawing powder, 2%-6% of waste silicon carbide sagger powder, 2%-2.5% of waste mixed alcohol, 4.5%-5.5% of thermosetting resin, 0.1-1.4% of asphalt powder, 1.5%-3.5% of silicon dioxide micro powder, 0.4%-0.8% of antioxidant and 0.3%-0.5% of agglutinant. The utilization proportion of the waste refractories of the iron runner ramming material reaches 90% or above, the advantages of being excellent in industrial application performance and low in comprehensive cost are achieved, and economic benefits and social benefits are remarkable.

Description

technical field [0001] The invention belongs to the field of indeterminate refractory materials, and in particular relates to an iron ditch ramming material containing more than 90% waste refractory materials. Background technique [0002] Iron trench ramming material is an important material for the daily maintenance of blast furnace casthouse. The following problems usually exist in the application of ordinary iron trench ramming materials: a. The cost of using traditional refractory raw materials is too high, and the processing process of traditional refractory raw materials is a process of high energy consumption and high pollution; b. The sintering property is not good, and there are often The phenomenon that the higher-grade iron ditch ramming material is used is worse; c. The service life fluctuates greatly, because the ramming material is not fully combined with the construction surface, which is greatly affected by the quality of the ramming process. [0003] Altho...

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Problems solved by technology

The following problems usually exist in the application of ordinary iron trench ramming materials: a. The cost of using traditional refractory raw materials is too high, and the processing process of traditional refractory raw materials is a process of high energy consumption and high pollution; b. The sintering property is not good, and there are often The phenomenon that the higher-grade iron ditch ramming material is used is worse; c. The service life fluctuates greatly, because the ramming material is not fully combined with the construction surface, which is greatly affected by the quality of the ramming process.

[0003] Although there are reports of a small amount of waste and old refractories being used in iron trench ramming materials in China, the application types of waste and old refractories are single, and the utilization rate of waste and old refractories is not high, and it is difficult to break through 60%.

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