System and method for producing environment-friendly building board by using solid wastes

A technology for building panels and environmental protection, which is applied in the field of solid waste resource utilization and environmental protection, can solve problems such as polyformaldehyde and human hazards, and achieve the effects of reducing preparation costs, avoiding waste, and good thermal insulation performance

Pending Publication Date: 2017-06-09
山东卓联环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But now there will be more formaldehyde released in the decoration materials, which will cause certain harm to the human body.

Method used

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  • System and method for producing environment-friendly building board by using solid wastes
  • System and method for producing environment-friendly building board by using solid wastes
  • System and method for producing environment-friendly building board by using solid wastes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Dry the aluminum ash, calcium carbide slag, and desulfurized gypsum so that the moisture content is less than or equal to 5%. The coal gangue is crushed and mixed with aluminum ash, calcium carbide slag, and desulfurized gypsum. Based on solid matter, coal gangue accounts for 25 parts by weight, desulfurized gypsum accounts for 13 parts by weight, calcium carbide slag accounts for 20 parts by weight, and aluminum ash accounts for 17 parts by weight. . After the components are milled and homogenized, they are transported into a rotary kiln for calcination. The calcination temperature is 1250°C and the calcination time is 70 minutes to obtain the matrix material.

[0050] Take 35 parts by weight of the base material, add 11 parts by weight of activated carbon, 1 part by weight of a mixture of retarder and foaming agent, and then add 30 parts by weight of industrial water to prepare a slurry, and then pave the surface. The thickness of the layer is 1.5 mm.

[0051] Take 20 pa...

Embodiment 2

[0053] Dry the aluminum ash, calcium carbide slag, and desulfurized gypsum so that the moisture content is less than or equal to 5%. The coal gangue is crushed and mixed with aluminum ash, calcium carbide slag, and desulfurized gypsum. In terms of solid matter, coal gangue accounts for 30 parts by weight, desulfurized gypsum accounts for 15 parts by weight, calcium carbide slag accounts for 30 parts by weight, and aluminum ash accounts for 20 parts by weight. . After the components are ground and homogenized, they are transported into a hollow kiln for calcination. The calcination temperature is 1300°C and the calcination time is 70 minutes.

[0054] Take 39 parts by weight of the base material, add 13 parts by weight of activated carbon, 1.1 parts by weight of a mixture of retarder and foaming agent, and then add 34 parts by weight of industrial water to prepare a slurry, and then pave the surface. The thickness of the layer is 1.7 mm.

[0055] Take 35 parts by weight of the bas...

Embodiment 3

[0058] Dry the aluminum ash, calcium carbide slag, and desulfurized gypsum so that the moisture content is less than or equal to 5%. The coal gangue is crushed and mixed with aluminum ash, calcium carbide slag and desulfurized gypsum. In terms of solid matter, coal gangue accounts for 27 parts by weight, desulfurized gypsum accounts for 12 parts by weight, calcium carbide slag accounts for 20 parts by weight, and aluminum ash accounts for 17 parts by weight. . After the components are ground and homogenized, they are transported into a hollow kiln for calcination. The calcination temperature is 1300°C and the calcination time is 80 minutes.

[0059] Take 41 parts by weight of the base material, add 14 parts by weight of activated carbon, 1.6 parts by weight of a mixture of retarder and foaming agent, and then add 30 parts by weight of industrial water to prepare a slurry, and then pave the surface. The thickness of the layer is 1 mm.

[0060] Take 40 parts by weight of the base m...

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Abstract

The invention discloses a system and a method for producing an environment-friendly building board by using solid wastes. The method comprises the following steps: carrying out raw material grinding, homogenizing, sintering and clinker grinding on large-sized industrial solid wastes such as coal gangue with different components in a coal mining industry, carbide slag in a chemical engineering industry, aluminum ash in a metallurgical industry, and flue gas desulfurization gypsum and fly ash in electric power, iron and steel and other industries to produce a matrix material; using the matrix material as a core material, preparing slurry from the core material and assisted activated carbon, staple fibers, sawdust and the like, and producing a high-performance environment-friendly building board according to a specific firming and curing process; the solid wastes with nearly-zero cost serving as raw materials are adopted to replace high-quality mineral resources, so the process has a huge promoting effect on environmental protection, energy conservation and emission reduction.

Description

Technical field [0001] The invention belongs to the field of solid waste resource utilization and environmental protection, and specifically relates to a system and method for preparing environmental protection building boards by using solid waste. Background technique [0002] With the continuous and rapid advancement of my country’s industrialization process, a large amount of solid waste in mining, metallurgy, electric power, chemical and other industries has occupied more and more precious land resources and caused huge pollution to the environment. Coal gangue, tailings, smelting slag, red mud, by-product gypsum, and fly ash are listed as the main solid waste treatment objects of concern. [0003] Foamed concrete, also called foamed cement, is to prepare foam from an aqueous solution of foaming agent, and then add the foam to a slurry made of cement-based cementitious materials, aggregates, admixtures, admixtures, and water. A lightweight porous concrete product made by mixing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/08C04B28/14C04B38/00C04B18/14C04B18/12C04B18/04B28B15/00B28B11/24B28B1/50
CPCC04B18/0481C04B18/12C04B18/144C04B28/144C04B38/00C04B38/08B28B1/50B28B11/24B28B15/00C04B2111/00017C04B2201/20C04B2201/32C04B2201/50Y02W30/91
Inventor 刘晓斌吴长亮任常在刘全勋王勇付华辉
Owner 山东卓联环保科技有限公司
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