Antimony tailing aerated concrete block and preparation method thereof

Abstract

The invention discloses an antimony tailing aerated concrete block and a preparation method thereof. The antimony tailing aerated concrete block comprises the following raw material parts by weight: 60-80 parts of antimony tailings, 10-25 parts of cement, 10-30 parts of lime, 0.05-0.15 part of foaming agent, and water, wherein the weight of the water is 15-40% of the total weight of the dry materials. During preparation, the materials are added in the following sequence: the antimony tailings, the water, the cement and the lime, and the foaming agent; and the materials are mixed uniformly, stand still to be subjected to pre-curing for 2-3 h, is turned and cut, and is subjected to autoclaving curing for 10-12 h, so as to form the finished product. According to the invention, a great quantity of tailings produced in an antimony ore separation process are adopted as the main raw material to prepare the building concrete block with the high strength above 5 MPa, so as to achieve the following effects: new economic benefits are created for enterprises, and the cost for treating the tailings is reduced; the cyclic utilization of the tailings is facilitated to reduce the environmental and ecological pollution caused by the tailings; and the occupancy of land resource is avoided.

Description

technical field [0001] The invention relates to a concrete block for building, in particular to an antimony tailing slag aerated concrete block and a preparation method thereof. Background technique [0002] The antimony tailings slag produced after the graded treatment of antimony ore beneficiation is usually treated as waste, but these slags are in powder form and are not easy to condense. It usually takes more than 20 days to slowly condense. Therefore, in the powdery waste slag Before condensing, the piled waste slag is easy to generate dust when it meets the wind, which will seriously pollute the environment and destroy the ecological environment and ecological balance. It is highly polluting and cannot be dumped casually. Therefore, the common practice is to process the waste residues and then stack them. However, stacking these waste residues requires a special storage yard for storage, and also requires transportation costs and the cost of building a storage yard, wh...

AI Technical Summary

Problems solved by technology

[0002] The antimony tailings slag produced after the graded treatment of antimony ore beneficiation is usually treated as waste, but these slags are in powder form and are not easy to condense. It usually takes more than 20 days to slowly condense. Therefore, in the powdery waste slag Before condensing, the piled waste residues are easy to generate dust when exposed to wind, which will seriously pollute the environment and destroy the ecological environment and ecological balance. It is highly polluting and cannot be dumped casually.

Therefore, the common practice is to process the waste residues before stacking them, and stacking these waste residues requires a special yard for stacking, and also requires transportation costs and the cost of building a yard, which increases the cost of waste disposal for enterprises and occupies land resources.