Method for preparing lightweight wallboard by utilizing aluminum tailings slag

Abstract

The invention relates to a method for preparing a lightweight wallboard by utilizing aluminum tailings slag. The wallboard is prepared from the following materials, in percentages: 70-85% of the aluminum tailings slag, 5-10% of fly ash, 5-10% of waste slag soil, 5-10% of sludge, and 0.2-0.8% of a foaming agent. The method comprises the following process flows: 1) drying the aluminum tailings slag,the fly ash, the waste slag soil and the sludge, and performing sieving; 2) separately performing ball milling; 3) performing measuring according to the ratio; 4) performing dry stirring on the materials in a stirrer for 2 min; 5) assembling a mold, laying refractory paper, performing filling with powder, and sending the mold into a sintering kiln; 6) performing preheating, performing sintering,performing cooling to 40 DEG C, and taking the mold out from the kiln; 7) taking out a lightweight wallboard blank and performing cutting to form a specified size and shape; 8) performing scribing, and performing processing to form vertical through holes, transverse through holes, a vertical threading through hole and a transverse threading through hole; 9) putting vertical reinforcing bars in thevertical through holes; and putting transverse reinforcing bars in the transverse through holes; 10) pouring grout concrete into the vertical through holes and the transverse through holes; and 11) performing maintenance, performing inspection, and performing storage.

Description

technical field [0001] The invention relates to a method for preparing light-weight wall panels by using aluminum tailings slag, which belongs to the field of industrial solid waste utilization and building energy-saving wall materials, and specifically relates to a method for using aluminum tailings slag, fly ash, waste slag, and sludge And other industrial solid wastes are sintered at high temperature and then machined into a light-weight wallboard with thermal insulation and fireproof functions. Background technique [0002] In the process of bauxite beneficiation, a large amount of aluminum tailings will inevitably be produced, occupying a large amount of land and polluting the environment; [0003] Fly ash discharged from coal power plants is a solid waste and pollutes the environment and water sources; [0004] With the acceleration of urbanization and urbanization, and the continuous expansion of the old city renovation of shanty towns, a large amount of waste residu...

AI Technical Summary

Problems solved by technology

[0008] The present invention attempts to update and replace the existing energy-saving building insulation wall materials, and designs a method for preparing lightweight wallboards with thermal insulation and fire prevention functions by using solid waste such as aluminum tailings slag, which not only solves the problems of aluminum tailings slag, The problem of environmental pollution caused by industrial solid waste such as fly ash, waste slag, and sludge also solves the problem of lack of integrated wall materials for thermal insulation, heat insulation, and fire protection for energy-saving buildings, and improves the thermal insulation performance of the wall and prevents fire. Performance, durability, so that the insulation material has the same life as the building

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