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Anti-ultraviolet calcium silicate board prepared from industrial waste residue and production process thereof

A technology of calcium silicate board and industrial waste residue, applied in the field of ultraviolet calcium silicate board and its production technology, can solve the problems of high cost, difficult construction, difficult market promotion, etc., to reduce pollution, turn waste into treasure, economic and Social benefits, the effect of improving the anti-ultraviolet aging performance

Inactive Publication Date: 2015-12-23
CHANGZHOU NUOJIN PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its high cost and difficult construction, it is difficult to promote it in the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation of an anti-ultraviolet calcium silicate board and its production process by using industrial waste residues, comprising the following steps:

[0020] Preparation of slurry: 81 kg of fly ash, 409 kg of blast furnace steel slag, 110 kg of desulfurized gypsum, 22 kg of mica powder, 309 kg of anti-ultraviolet aging agent, 68 kg of sanding powder and 0.8 kg of polyacetamide were prepared as a mixture.

[0021] The anti-ultraviolet aging agent is the layered double hydroxyl compound metal hydroxide: the Mg(NO 3 ) 2 ·6H 2 O, Al(NO 3 ) 3 9H 2 O into Mg 2+ / Al 3+ A mixed brine solution with a molar ratio of 2:1, where [Mg 2+ ]=1mol / L, and adjust the pH value of the mixed salt solution to 10 with 2mol / L NaOH solution; take 400mL of the mixed salt solution, put it into a three-necked flask, condense and reflux in a constant temperature water bath at 80°C and stir for 24 hours, and precipitate After standing and aging, separate the filter cake and filtrate by ...

Embodiment 2

[0028] A preparation of an anti-ultraviolet calcium silicate board and its production process by using industrial waste residues, comprising the following steps:

[0029] Ingredients: 100 kg of fly ash, 390 kg of blast furnace steel slag, 150 kg of desulfurized gypsum, 20 kg of mica powder, 290 kg of anti-ultraviolet aging agent, 80 kg of sanding powder and 0.9 kg of polyacetamide to prepare a mixture.

[0030] The anti-ultraviolet aging agent is the layered double hydroxyl compound metal hydroxide: the Mg(NO 3 ) 2 ·6H 2 O, Al(NO 3 ) 3 9H 2 O into Mg 2+ / Al 3+ A mixed brine solution with a molar ratio of 2:1, where [Mg 2+ ]=1mol / L, and adjust the pH value of the mixed salt solution to 10 with 2mol / L NaOH solution; take 400mL of the mixed salt solution, put it into a three-necked flask, condense and reflux in a constant temperature water bath at 80°C and stir for 24 hours, and precipitate After standing and aging, separate the filter cake and filtrate by vacuum filtrati...

Embodiment 3

[0037] A preparation of an anti-ultraviolet calcium silicate board and its production process by using industrial waste residues, comprising the following steps:

[0038] Preparation of slurry: 85 kg of fly ash, 414 kg of blast furnace steel slag, 120 kg of desulfurized gypsum, 25 kg of mica powder, 320 kg of anti-ultraviolet aging agent, 65 kg of sanding powder and 0.9 kg of polyacetamide were prepared as a mixture.

[0039] The anti-ultraviolet aging agent is the layered double hydroxyl compound metal hydroxide: the Mg(NO 3 ) 2 ·6H 2 O, Al(NO 3 ) 3 9H 2 O into Mg 2+ / Al 3+ A mixed brine solution with a molar ratio of 2:1, where [Mg 2+ ]=1mol / L, and adjust the pH value of the mixed salt solution to 10 with 2mol / L NaOH solution; take 400mL of the mixed salt solution, put it into a three-necked flask, condense and reflux in a constant temperature water bath at 80°C and stir for 24 hours, and precipitate After standing and aging, separate the filter cake and filtrate by ...

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PUM

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Abstract

The invention relates to the technical field of calcium silicate board preparation, in particular to a calcium silicate board prepared from industrial waste residue and a production process thereof. The raw materials for preparation of the calcium silicate board from industrial waste residue include, by dry weight percentage, 35-45 parts of blast furnace steel slag; 5-15 parts of fly ash; 10-25 parts of desulfurization gypsum; 1-5 parts of mica powder; 20-35 parts of an anti-ultraviolet ageing agent; 5-10 parts of sanding powder; 0.05-0.1 part of polyacetamide. The raw materials are prepared into a mixed material. Specifically, the blast furnace steel slag, fly ash and desulfurization gypsum are all solid wastes discharged from smelting plants. The calcium silicate board product made by the process provided by the invention meets the various index requirements of the national standard, not only can reduce the pollution of industrial solid waste discharge to the environment, but also can achieve the economic and social benefits of turning "waste" into wealth. Layered dihydroxyl composite metal hydroxide is a multistage superimposed layer structure composed of a layered host double hydroxide laminate and interlayer guest anions, has excellent physical shielding effect to ultraviolet, and can effectively improve the anti-ultraviolet aging properties.

Description

technical field [0001] The invention relates to the technical field of preparation of calcium silicate boards, in particular to an anti-ultraviolet calcium silicate board prepared from industrial waste residues and a production process thereof. Background technique [0002] With the development of the steel and electric power industries, the discharge of industrial waste such as blast furnace slag, desulfurized gypsum and fly ash will increase year by year, and the resulting industrial waste will also have a serious impact on the environment and land resources. Realizing the comprehensive utilization of waste resources is of great significance to the protection of resources and the environment in our country. [0003] Calcium silicate board is a new type of inorganic building decoration material. Because of its high strength, light weight, good processability and non-combustibility, it is widely used in ship bulkheads, suspended ceilings and non-load-bearing buildings. Wall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/08C04B18/14C04B14/36
CPCY02W30/91
Inventor 刘海林
Owner CHANGZHOU NUOJIN PRECISION MACHINERY
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