Ceramic particles with iron tailing powder and manufacturing method thereof

Abstract

The invention relates to ceramic particles with iron tailing powder and a manufacturing method thereof, which contain materials and the technological processes of proportioning and manufacturing. The mixture ratio of the materials is as follows: 90 to 93 percent of iron tailing powder and 7 to 10 percent of coal powder; the technological processes are as follows: drying the iron tailing powder firstly, then sieving, metering, adding 1 / 2 of water after conveying the iron tailing powder and the coal powder to a stirring machine and stirring for about 2 minutes in a dry way, then stirring for about 1.5 minutes in a wet way, conveying a wet powder material after being stirred into a balling disk, then adding the water for balling, placing the raw balls of the ceramic particles of the iron tailing powder into a double-layer continuous type ceramic particle sintering kiln for calcining, taking out of the kiln, cooling, crushing and sorting; and the ceramic particles with the iron tailing powder and the manufacturing method thereof are characterized in that the operation of proportioning is simple, the waste utilization rate of the iron tailing powder is very high, the water absorption rate of the ceramic particles is low, the cost is low, the strength is high, and each performance index of the ceramic particles of the iron tailing powder conforms to the requirements of national standards.

Description

technical field [0001] The invention relates to the technical field of building material manufacturing, in particular to an iron tailings powder ceramsite using iron tailings powder in industrial waste slag as a main raw material and coal powder as a secondary raw material and a manufacturing method thereof. Background technique [0002] Since the 1950s, Britain was the first in the world to produce fly ash ceramsite by using industrial waste residue—fly ash. my country began to study fly ash ceramsite sintering in the 1960s, and reached the climax of comprehensive utilization of fly ash until the 1990s. my country is a large coal-producing country and a large coal-fired power generation country. Therefore, there are many methods of comprehensive utilization of fly ash, such as sintering of fly ash ceramsite is one of the main utilization methods. [0003] Since the reform and opening up, my country's iron and steel industry has developed rapidly, and the annual discharge of...

AI Technical Summary

Problems solved by technology

There are two biggest disadvantages of this technical solution: one is that the amount of iron tailings powder is low, only 55-60%, and the other is that three materials such as fly ash, coal gangue and red mud need to be mixed at the same time. This material is difficult to find in a region or city. Even if there is, coal gangue needs to be crushed, dried, and ground, and red mud must be dried and ground. There are many processes, which will undoubtedly increase the production cost of ceramsite. Iron tailings powder ceramsite will lose its competitiveness in the market and will decline

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