Attapulgite river bottom silt ceramsite sand

Abstract

The invention discloses attapulgite river bottom silt ceramsite sand. The technical scheme is mainly characterized in that the attapulgite river bottom silt ceramsite sand is composed of high-viscosity attapulgite clay powder, attapulgite clay tailing powder, river bottom silt, red bentonite powder, fly ash, and bauxite tailings. The attapulgite river bottom silt ceramsite sand is prepared by carrying out steps of mixing, granulating, baking, cooling, sieving and packaging on the ingredients of the attapulgite river bottom silt ceramsite. The attapulgite river bottom silt ceramsite is spherical and has the advantages of high strength, low crushing rate, stable quality, porous inner part, corrosion resistance, and good frost resistance and earthquake resistance. The attapulgite river bottom silt ceramsite sand can be produced by comprehensively utilizing the river bottom silt and the tailings, so that the attapulgite river bottom silt ceramsite is good for improving the resource utilization rate, changing wastes to valuable things, reducing the occupied land area, and protecting and purifying the environment; and the attapulgite river bottom silt ceramsite sand is applicable to producing oil field fracturing propping agents and heat-preservation and sound-proof materials.

Description

technical field [0001] The invention relates to ceramsite, in particular to attapulgite river bottom silt ceramsite sand. Background technique [0002] The amount of dredged river bottom silt produced by dredging projects adopted to control the deterioration of landscape water quality in my country is increasing day by day. Since the water content of river bottom silt is greater than 75%, its composition is complex and prone to secondary pollution. Improper disposal will cause extremely adverse effects on the environment Therefore, the treatment and disposal of dredged river bottom silt has become a common concern. [0003] The plasticity of river bottom silt is good, which is conducive to the production of attapulgite river bottom silt ceramsite sand, but the water content of river bottom silt is relatively high. Usually, the method to reduce the water content of river bottom silt is to concentrate and dry, which requires a large amount of Energy directly affects the produc...

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of the above-mentioned patents is that the high-strength ceramsite proppant is prepared from bauxite powder, manganese ore powder, titanium concentrate powder, bentonite and magnesium oxide. Poor bonding performance increases the difficulty of granulation, and the yield is low, and the surface of ceramsite is easy to glaze when sintered at a high temperature of 1200-1450 ℃, which reduces the particle strength of ceramsite