Method for producing building lightweight wall board by using tailings powder as raw material

A technology for tailings powder and raw materials, which is applied in the field of building materials, can solve the problems of destroying resources to produce building materials and not conforming to the national development strategy, and achieves the effects of light weight, good fire resistance and good seismic performance.

Active Publication Date: 2014-08-06
LIAONING JIJIA ENERGY SAVING WALL EQUIP
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Problems solved by technology

my country has a large population, and the area of ​​houses built every year is as high as 1.6 billion to 2 billion square meters, which exceeds the sum of the annual building areas of all developed countries. However, most of the domestic wall material manufacturers currently use clay, gravel, sand and light aggregates as Filling, which belongs to the destruction of resources to produce building materials, does not conform to the national development strategy

Method used

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  • Method for producing building lightweight wall board by using tailings powder as raw material

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Effect test

Embodiment 1

[0029] (1), magnesium chloride is dissolved into the solution that wave ratio concentration is 25, and in dissolving process, solution produces a large amount of heat energy, heat energy is extracted with the plate heat exchanger installed in the magnesium chloride dissolving tank (or tank), as production The required heat energy is used, which saves energy and ensures that the temperature of the magnesium chloride solution is between 25°C and 30°C;

[0030] (2) Mix magnesia with a content of 80% and tailings powder with a fineness of more than 200 meshes in a ratio of 6.5:4 and put them into a mixer for use; the specific added weight is: 100kg of 80% magnesia and 61.5kg tailings powder

[0031] (3), according to the weight of 80% magnesium oxide in the step (2), by magnesium oxide and magnesium chloride solution mol ratio is the ratio calculation of 6.5:1, adding wave ratio concentration is 25 magnesium chloride solution 90kg, adds in the magnesite mixer, And by the weight r...

Embodiment 2

[0052] (1), dissolving magnesium chloride into a solution with a wave ratio concentration of 30, in the dissolution process, the solution produces a large amount of heat energy, which is extracted with a heat exchanger and used as the heat energy required for production, saving energy. And ensure that the temperature of the magnesium chloride solution is between 25°C and 30°C;

[0053] (2), the content is 85% magnesia and the tailings powder that fineness is more than 200 order is mixed by the ratio of 8:5 and put into the mixer for use, wherein 85% magnesia is 100kg, tailings The weight of powder is 62.5kg;

[0054] (3), according to the weight of 80% magnesium oxide in the step (2), by the ratio of magnesium oxide and magnesium chloride mol ratio 7.5:1, the wave ratio concentration is that 25 magnesium chloride solution 110kg is added in the magnesite mixer; Press magnesium chloride solution and Add 1.1kg of environmentally friendly additives in a weight ratio of 100:1, and...

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Abstract

The invention relates to a method for producing a building lightweight wall board by using tailings powder as a raw material, which comprises the following steps: (1) dissolving magnesium chloride into solution; (2) mixing and stirring magnesium oxide with the tailings powder, the solution of the magnesium chloride and an environment-friendly additive until the mixture is even; (3) frothing a foaming agent, then pouring the frothed foaming agent into the mixture, and continuously stirring the frothed foaming agent and the mixture evenly; (4) putting a material prepared by the previous steps into a mold, and maintaining the mold; and (5) after maintaining the mold, dismounting the wall board in the mold, and piling up and preserving the wall board. The method has the advantages of: 1, according with the demands on the sustainable development of the national recycling economy; 2, according with the demands on national establishment of economical building material enterprises; and 3, comprehensively using resources and changing wastes into valuable.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a method for producing light-weight building wall panels using tailings powder as a raw material. Background technique [0002] As people's demand for energy-saving green buildings is increasing, the problems of high energy consumption in buildings and the destruction of ecological resources by bricks, tiles and cement used in traditional buildings have increasingly become the focus of attention of the world and society. my country has a large population, and the area of ​​houses built every year is as high as 1.6 billion to 2 billion square meters, which exceeds the sum of the annual building areas of all developed countries. However, most of the domestic wall material manufacturers currently use clay, gravel, sand and light aggregates as Filling, which belongs to the production of building materials that destroy resources, does not conform to the national development strategy. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/32C04B18/12
CPCC04B28/32Y02W30/91C04B18/12C04B20/0076C04B38/10C04B40/0028C04B40/0082
Inventor 徐涛
Owner LIAONING JIJIA ENERGY SAVING WALL EQUIP
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