A preparation process for preparing anti-radiation mortar using lead-zinc tailings sand

Abstract

The invention discloses a preparation process for preparing anti-radiation mortar by using lead-zinc tailings sand. The anti-radiation mortar includes tailings sand fine aggregate, Portland cement, styrene-butadiene emulsion, barite, EVA dispersed latex powder, water , the tailings sand fine aggregate is obtained by crushing and rinsing the lead-zinc tailings sand by the processing equipment. Equipped with a crushing mechanism, a grinding mechanism and a rinsing mechanism, the processing equipment can directly apply the tailings sand to the preparation of radiation-proof mortar after being processed in multiple steps, which can not only improve the utilization rate of tailings sand resources, but also alleviate the shortage of land resources and heavy metal pollution. The pressure, and the lead leaching rate of products produced by this process meet the safety standards.

Description

technical field [0001] The invention relates to the technical field of tailings sand treatment, in particular to a preparation process for preparing radiation-proof mortar using lead-zinc tailings sand. Background technique [0002] Since the 20th century, the world's non-ferrous metal industry has advanced by leaps and bounds, and the total production and consumption of non-ferrous metals in the world has increased significantly, and has maintained a continuous growth trend. While the non-ferrous metal industry is developing rapidly, a large amount of tailings are also produced. [0003] According to incomplete statistics, the world's annual tailings discharge amounted to 50 billion tons, of which the discharge of metal tailings such as lead, zinc, and iron accounted for about 80% of the total, and the residual lead-zinc compounds in tailings and tailings sand The sulphur-containing substances and other symbiotic minerals will cause serious pollution to the soil and ground...

AI Technical Summary

Problems solved by technology

[0004] Lead-zinc tailings sand contains many incompletely extracted minerals and various toxic substances, and the tailings pond covers a huge area, which not only affects the ecological environment, but also increases with the passage of time. Facing the risk of dam failure, the pressure of flood control also increases sharply every year, so the problem of reusing tailings sand needs to be solved urgently;

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