Self-flowing castable with waste blast furnace main runner material as main raw material and making method of self-flowing castable

Abstract

The invention discloses a self-flowing castable with a waste blast furnace main runner material as a main raw material and a making method of the self-flowing castable. The making method sequentially comprises the steps: 1, selecting the materials; 2, crushing; 3, sieving; 4, mixing, and 5, packaging and storing. The self-flowing castable comprises: 20-30 parts of main runner waste material, 10-15 parts of electric smelting compact corundum, 20-30 parts of brown aluminum oxide, 5-15 parts of tabular corundum, 10-20 parts of silicon carbide, 3-8 parts of silicon powder, 2-4 parts of spherical asphalt, 1-2 parts of active aluminum oxide micro powder, 3-8 parts of aluminate cement, 2-5 parts of water reducing agent, 1-2 parts of detonation inhibitor and 1-2 parts of expanding agent. According to the self-flowing castable, the waste blast furnace main runner material is recycled, thus the resource waste is prevented, the environment pollution is reduced, and a very positive meaning is achieved for reducing the cost of the iron runner material and realizing the circular economy.

Description

【Technical field】 [0001] The invention relates to the technical field of refractory materials, in particular to a self-flowing castable with waste blast furnace main channel material as the main raw material and a manufacturing method thereof. 【Background technique】 [0002] Self-flowing castables refer to low-cement, ultra-low-cement or cement-free refractory castables characterized by their fluidity after mixing. Low-cement or ultra-low-cement refractory castables with this fluidity can flow and flow without external force. Degassing without obvious segregation. Due to the good flow characteristics of self-flowing castables, it has attracted people's attention in recent years. It does not need to be vibrated and can be filled only by its own gravity. Therefore, it has more advantages than low-cement castables in many occasions. Large and medium-sized iron and steel enterprises Every year, a large number of taphole castables are discarded due to furnace dismantling. In ord...

AI Technical Summary

Problems solved by technology

Due to the good flow characteristics of self-flowing castables, it has attracted people's attention in recent years. It does not need to be vibrated and can be filled only by its own gravity. Therefore, it has more advantages than low-cement castables in many occasions. Large and medium-sized iron and steel enterprises Every year, a large number of taphole castables are discarded due to furnace dismantling. In order to reduce the raw material cost of iron trench castables and respond to the national call for energy conservation and emission reduction, reusing waste materials into iron trench castables can greatly reduce output. The raw materials of castables for branch ditches and slag ditches in iron yards are made into wood. At the same time, the castable formulations of the prior art have disadvantages such as low castable strength, poor compactness, and weak slag erosion resistance, so that it is difficult to meet the one-time iron quantity. normal production demand