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Photocatalytic solid waste-based cement shaving board and preparation method thereof

A technology of photocatalysis and particleboard, applied in the field of cement particleboard, can solve the problems of poor stability of semi-dry desulfurization ash, single performance of cement particleboard, large primary resource consumption, etc., to improve photocatalytic performance, promote hydration speed and quality, The effect of improving mechanical properties

Active Publication Date: 2022-08-09
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]In order to solve the problem that the performance of cement particle board is single and does not have photocatalysis; the production of cement particle board needs to consume cement, which leads to the problem of large primary resource consumption; and the problem of steel rolling sludge and Semi-dry desulfurization ash needs to open up new application fields; semi-dry desulfurization ash has poor stability and is difficult to use directly

Method used

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  • Photocatalytic solid waste-based cement shaving board and preparation method thereof
  • Photocatalytic solid waste-based cement shaving board and preparation method thereof
  • Photocatalytic solid waste-based cement shaving board and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0032]

[0033] The size of the wood shavings is 15mm-30mm in length, 2mm-5mm in width, 0.2mm-0.5mm in thickness, and the particle size of wood ash is 0.1mm-0.5mm.

[0034] The waste composite ash powder is a mixture of sawdust ash and waste walnut shell powder, the mass ratio of the sawdust ash and waste walnut shell powder is 2:1, wherein the particle size of the sawdust ash is 0.1mm to 0.5mm, and the waste walnut shell powder is fine. Degree of 325 mesh (screen residue <1%).

[0035] The solid waste photocatalytic filler is steel rolling sludge modified TiO 2 .

[0036] The ordinary Portland cement is P.O 42.5.

[0037] The mass fraction of the semi-dry desulfurization ash ultrafine powder solution is 80%, and the fineness of the semidry desulfurization ash ultrafine powder is 700 meshes.

[0038] The composite oxygen aid is a mixed solut...

Embodiment 2

[0046] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0047]

[0048] The size of the wood shavings is 15mm-30mm in length, 2mm-5mm in width, 0.2mm-0.5mm in thickness, and the particle size of wood ash is 0.1mm-0.5mm.

[0049] The waste composite ash powder is a mixture of sawdust ash and waste walnut shell powder, the mass ratio of the sawdust ash and waste walnut shell powder is 1:1, wherein the particle size of the sawdust ash is 0.1mm to 0.5mm, and the waste walnut shell powder is fine. Degree of 325 mesh (screen residue <1%).

[0050] The solid waste photocatalytic filler is steel rolling sludge modified TiO 2 .

[0051] The ordinary Portland cement is P.O 42.5.

[0052] The mass fraction of the semi-dry desulfurization ash ultrafine powder solution is 65%, and the fineness of the semidry desulfurization ash ultrafine powder is 800 meshes.

[0053] The composite oxygen aid is a mixed solut...

Embodiment 3

[0061] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0062]

[0063] The size of the wood shavings is 15mm-30mm in length, 2mm-5mm in width, 0.2mm-0.5mm in thickness, and the particle size of wood ash is 0.1mm-0.5mm.

[0064] The waste composite ash powder is a mixture of sawdust ash and waste walnut shell powder, the mass ratio of sawdust ash and waste walnut shell powder is 1:2, wherein the particle size of the sawdust ash is 0.1mm to 0.5mm, and the waste walnut shell powder is fine. Degree of 325 mesh (screen residue <1%).

[0065] The solid waste photocatalytic filler is steel rolling sludge modified TiO 2 .

[0066] The ordinary Portland cement is P.O 42.5.

[0067] The mass fraction of the semi-dry desulfurization ash ultrafine powder solution is 60%, and the fineness of the semidry desulfurization ash ultrafine powder is 600 meshes.

[0068] The composite oxygen aid is a mixed solution ...

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Abstract

The invention provides a photocatalytic solid waste-based cement shaving board and a preparation method thereof, and belongs to the field of cement shaving boards. The cement shaving board is prepared from wood shavings, waste composite ash powder, solid waste photocatalytic filler, ordinary Portland cement, a semi-dry desulfurization ash superfine powder solution, a composite oxygen promoter and limestone superfine powder. The problems that a cement shaving board is single in performance and does not have photocatalysis are solved; cement needs to be consumed during production of the cement shaving board, so that one-time resource consumption is large; and a new application field needs to be developed for the steel rolling sludge and the semi-dry desulfurization ash. The semi-dry desulfurization ash is poor in stability and difficult to directly utilize; the photocatalytic solid-waste-based cement shaving board is prepared by fully utilizing solid waste, large-scale and high-valued application of the solid waste is achieved, the cement shaving board is endowed with photocatalytic performance, the purpose of reducing carbon is achieved, and the current industrial development requirements of energy conservation, environmental protection and circular economy are met.

Description

technical field [0001] The invention belongs to the field of cement particle boards, and in particular relates to a photocatalytic solid waste-based cement particle board and a preparation method thereof. Background technique [0002] Cement particleboard has been widely used in foreign countries as sound barrier materials for interior and exterior wall panels, partition panels, floors, railways or roads, and its application in China is gradually expanding. This kind of board is generally prepared from cement, wood shavings and various additives. The cement particle board used for interior and exterior wall panels, partition boards and floors not only requires high strength, excellent water resistance, sound insulation and thermal insulation performance, but also requires energy saving and environmental protection, that is, Use less cement and gas purification. [0003] Rolling sludge is a kind of sludge produced by iron and steel enterprises during the rolling process. Its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/28C04B18/06C04B18/26C04B22/02C04B22/06C04B38/08C04B111/34C04B111/40
CPCC04B28/04C04B22/06C04B22/02C04B22/068C04B18/062C04B14/28C04B18/26C04B38/08C04B2111/00017C04B2201/50C04B2111/40C04B2111/343C04B2111/00025Y02W30/91
Inventor 张浩王艳茹龙红明吴胜华朱子康季益龙宗志芳杜晓燕
Owner ANHUI UNIVERSITY OF TECHNOLOGY