Preparation method for manufacturing building board by utilizing mine tailing residue

Abstract

The invention discloses a preparation method for manufacturing building board by utilizing mine tailing residue. The following raw materials are used by weight ratio: 30-75% of tailing residue and 25-70% of additive; brine with the weight percent concentration of 25-28% is utilized to stir the material into paste, the paste is placed into a mould to be rolled and moulded, and the tailing residue is one or more than one of gold slag, copper slag and ferrum slag. The invention utilizes tailing residue to produce building board, massive tailing residue is consumed, pollution harm of tailing discharge is solved, the produced building board has low cost and high strength, tailing residue can be made into various building boards by utilizing the technology, and various building section bars, stone pillar, brick and lattice prism used for historic building restoration as well as modern city sculpture, roman column pendant, external decorative wall, leisure chair, rail and sidewalk lattice brick can be cast.

Description

technical field

[0001] The invention relates to a method for preparing building boards, in particular to a method for preparing building boards by using mining industry (gold, copper and iron ore) tailings and additives as raw materials. Background technique

[0002] Mineral resources are important resources for human beings to survive. They are non-renewable and irreplaceable, and they are the foundation of my country's industrial development. About 95% of my country's energy and 85% of raw materials depend on mineral resources, and the comprehensive recovery and utilization of valuable mineral resources has become one of the symbols to measure the level of a country's economic and technological development. Today, when mineral resources are dwindling and environmental protection calls are rising, the comprehensive utilization and recycling of tailings has attracted much attention from all over the world. The per capita possession of mineral resources in my country is far ...

Examples

Embodiment 1

[0028] (1) Magnesium oxide 100kg

[0029] (2) tailings slag 60kg

[0030] (3) Wood chips (-50~100 mesh) 30kg

[0031] (4) Polystyrene foam 3kg

[0032] (5) modifier 1.7kg

[0033] Stir the material into a paste with 28% (weight percent) brine solution, put it into a mold of medium-alkali glass fiber and polypropylene non-woven fabric, and press the plate for a second time to form it through a squeeze roller. The modifying agent can be calcium lignosulfonate, sodium tripolyphosphate, iron sulfate, phosphoric acid.

Embodiment 2

[0035] (1) Magnesium oxide 200kg

[0036] (2) tailings slag 600kg

[0037] (3) Epoxy resin 50kg

[0038] (4) Perlite 10kg

[0039] (5) modifier 10kg

[0040] (6) Polystyrene foam 5kg

[0041] Preparation method: use 25% (percentage by weight) brine solution to stir the material into a paste and put it into a mold for roll forming to make building interior wall slats. The modifying agent can be calcium lignosulfonate, sodium tripolyphosphate, iron sulfate, phosphoric acid.

Embodiment 3

[0043] (1) Magnesium oxide 500kg

[0044] (2) tailings slag 1000kg

[0045] (3) Closed-cell perlite 180kg

[0046] (4) Straw powder 120kg

[0047] (5) Polystyrene foam 10kg

[0048] (6) White cement (800#) 100kg

[0049] Preparation method: Stir the material into a paste with a 31% brine solution by weight and put it into a mold for six hours to demould. Building materials of various shapes used in ancient buildings.

technical field

[0001] The invention relates to a method for preparing building boards, in particular to a method for preparing building boards by using mining industry (gold, copper and iron ore) tailings and additives as raw materials. Background technique

[0002] Mineral resources are important resources for human beings to survive. They are non-renewable and irreplaceable, and they are the foundation of my country's industrial development. About 95% of my country's energy and 85% of raw materials depend on mineral resources, and the comprehensive recovery and utilization of valuable mineral resources has become one of the symbols to measure the level of a country's economic and technological development. Today, when mineral resources are dwindling and environmental protection calls are rising, the comprehensive utilization and recycling of tailings has attracted much attention from all over the world. The per capita possession of mineral resources in my country is far ...

Examples

Embodiment 1

[0028] (1) Magnesium oxide 100kg

[0029] (2) tailings slag 60kg

[0030] (3) Wood chips (-50~100 mesh) 30kg

[0031] (4) Polystyrene foam 3kg

[0032] (5) modifier 1.7kg

[0033] Stir the material into a paste with 28% (weight percent) brine solution, put it into a mold of medium-alkali glass fiber and polypropylene non-woven fabric, and press the plate for a second time to form it through a squeeze roller. The modifying agent can be calcium lignosulfonate, sodium tripolyphosphate, iron sulfate, phosphoric acid.

Embodiment 2

[0035] (1) Magnesium oxide 200kg

[0036] (2) tailings slag 600kg

[0037] (3) Epoxy resin 50kg

[0038] (4) Perlite 10kg

[0039] (5) modifier 10kg

[0040] (6) Polystyrene foam 5kg

[0041] Preparation method: use 25% (percentage by weight) brine solution to stir the material into a paste and put it into a mold for roll forming to make building interior wall slats. The modifying agent can be calcium lignosulfonate, sodium tripolyphosphate, iron sulfate, phosphoric acid.

Embodiment 3

[0043] (1) Magnesium oxide 500kg

[0044] (2) tailings slag 1000kg

[0045] (3) Closed-cell perlite 180kg

[0046] (4) Straw powder 120kg

[0047] (5) Polystyrene foam 10kg

[0048] (6) White cement (800#) 100kg

[0049] Preparation method: Stir the material into a paste with a 31% brine solution by weight and put it into a mold for six hours to demould. Building materials of various shapes used in ancient buildings.