Attapulgite volcaniclastic rock high alumina refractory aggregate sand

Abstract

The invention discloses an attapulgite volcaniclastic rock high alumina refractory aggregate sand. The technical scheme is characterized in that the attapulgite volcaniclastic rock high alumina refractory aggregate sand is composed of highly viscous attapulgite clay powders, attapulgite clay tailings, volcaniclastic rock mixtures, high alumina earth, kaoline, coal gangues and bentonite tailings. Materials are subjected to uniformly stirring, smashing, soaking, extruding, calcination, smashing and screening, and then the materials are packaged to form a finished product of the attapulgite volcaniclastic rock high alumina refractory aggregate sand. The attapulgite volcaniclastic rock high alumina refractory aggregate sand has the advantages that the particle strength is high, the creep deformation at the high temperature is small, the corrosion resistance is high, the thermal shock stability is good, and the like. According to the attapulgite volcaniclastic rock high alumina refractory aggregate sand, a large number of various wastes are utilized in the materials of the attapulgite volcaniclastic rock high alumina refractory aggregate sand, the resource utilization rate is increased, waste materials are changed into valuable things, the occupied land is reduced, the environment is protected and purified, the energy is saved, the production cost is lowered, the economic benefits are improved, and the attapulgite volcaniclastic rock high alumina refractory aggregate sand is suitable for refractory concrete constructions.

Description

technical field [0001] The invention relates to a refractory material, in particular to an attapulgite pyroclastic high-alumina refractory aggregate sand. Background technique [0002] Refractory materials are mainly made of bauxite, silica, magnesite, dolomite and other natural ores after processing, and the alumina in the high-alumina refractory aggregate is ≥ 48%. [0003] 80% of my country's mineral resources are associated mines, a large amount of valuable resources are stored in tailings, and tailings stockpiles require a large amount of land. Many tailings ponds have been used beyond the time limit or overloaded, or even operated in violation of regulations, which has caused great safety hazards in the tailings ponds and posed a serious threat to the property and life safety of people in surrounding areas. [0004] In addition to attapulgite, attapulgite clay often contains minerals such as bentonite, kaolinite, hydromica, sepiolite, quartz, opal and carbonate. [0...

AI Technical Summary

Problems solved by technology

[0005]Pyroclastic rocks coexist with attapulgite clay deposits, and pyroclastic rocks are mostly in the upper layer of attapulgite clay deposits, and some attapulgite clay deposits The thickness of the pyroclastic rock layer in the upper layer of the mining area is as high as tens of meters. During the mining process of the attapulgite clay, the pyroclastic rock in the upper layer of the attapulgite clay mining area is discarded as waste. According to field investigations, every ton of attapulgite clay mining Rodstone clay produces more than 30 tons of pyroclastic rocks. Calculated at an annual output of 150,000 tons, the pyroclastic rocks produced are as high as 4.5 million tons. They have not been utilized for many years, and the entire mining area is re-accumulated everywhere. Pyroclastic rock mixture, causing serious waste of resources and economic losses