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Environmental-friendly calcium silicate board and production process thereof

A technology of calcium silicate board and production process, applied in sustainable waste treatment, solid waste management, climate sustainability, etc. The effect of blanks and blanks, cost reduction and yield improvement

Inactive Publication Date: 2014-09-03
LUOFEIER BUILDING MATERIAL SHENYANG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing raw materials for the production of calcium silicate boards are all added with additives, such as flocculants, early strength agents or accelerators, which makes the produced calcium silicate boards have peculiar smell
In the production process, problems of sticking, falling, delamination, cracks and warping are prone to occur.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Environmentally friendly calcium silicate board is composed of the following weights: 65 kg of slaked lime, 105 kg of wollastonite, 385 kg of quartz powder, 375 kg of cement and 70 kg of pulp.

[0023] The production process of environmentally friendly calcium silicate board includes the following steps:

[0024] Preparation of slurry: put slaked lime, wollastonite, quartz powder and cement in a tank for stirring and mixing to form a uniform slurry, and then add pulp to the mixed slurry for slurrying, and the temperature of the slurry is controlled at 50 °C;

[0025] Preparation of blank board: The mixed slurry after sizing is evenly distributed on the felt through the flow trough, adsorbed and dehydrated by a vacuum pump to form a dense blank blank, which is then molded by a forming roller, and is vacuum demolded by a demoulding machine. The moisture content of the rough board blank is 26wt%;

[0026] Steam curing: After demoulding, the blank plate is steamed and cure...

Embodiment 2

[0030] Environmentally friendly calcium silicate board is composed of the following weights: 60 kg of slaked lime, 110 kg of wollastonite, 390 kg of quartz powder, 380 kg of cement and 60 kg of pulp.

[0031] The production process of environmentally friendly calcium silicate board includes the following steps:

[0032] Preparation of slurry: put slaked lime, wollastonite, quartz powder and cement in a tank for stirring and mixing to form a uniform slurry, and then add pulp to the mixed slurry for slurrying, and the temperature of the slurry is controlled at 40 °C;

[0033] Preparation of blank board: The mixed slurry after sizing is evenly distributed on the felt through the flow trough, adsorbed and dehydrated by a vacuum pump to form a dense blank blank, which is then molded by a forming roller, and is vacuum demolded by a demoulding machine. The moisture content of the rough board blank is 24wt%;

[0034] Steam curing: After demoulding, the blank plate is steamed and cure...

Embodiment 3

[0038] Environmentally friendly calcium silicate board is composed of the following weights: 70kg of slaked lime, 105kg of wollastonite, 370kg of quartz powder, 380kg of cement and 75kg of pulp.

[0039] The production process of environmentally friendly calcium silicate board includes the following steps:

[0040] Preparation of slurry: put slaked lime, wollastonite, quartz powder and cement in a tank for stirring and mixing to form a uniform slurry, and then add the pulp to the mixed slurry for discharging, and the temperature of the slurry is controlled at 45 °C;

[0041] Preparation of blank board: The mixed slurry after sizing is evenly distributed on the felt through the flow trough, adsorbed and dehydrated by a vacuum pump to form a dense blank blank, which is then molded by a forming roller, and is vacuum demolded by a demoulding machine. The moisture content of the rough board blank is 25wt%;

[0042] Steam curing: After demoulding, the blank plate is steam cured at ...

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Abstract

The invention relates to a calcium silicate board, and particularly relates to an environmental-friendly calcium silicate board and a production process thereof. The calcium silicate board comprises the following components in percentage by weight: 6%-7% of slaked lime, 9%-11% of wollastonite, 37%-39% of quartz powder, 36%-38% of cement and 6%-7.5% of paper pulp. According to the production process, because the temperature and water content of slurry are controlled in a pallet board preparation process, the pallet adhesion and the pallet dropping are prevented, and the temperature change and the water content during steam curing can prevent the phenomena of lamination and cracking of the pallet board; the finished product ratio of products is enhanced, and the cost is reduced.

Description

technical field [0001] The invention relates to a calcium silicate board, in particular to an environment-friendly calcium silicate board and a production process thereof. Background technique [0002] Calcium silicate board is a new type of inorganic building decoration material. Because of its high strength, light weight, good machinability and non-combustibility, it is widely used in ship bulkheads, suspended ceilings and non-load-bearing buildings. Walls, and other places with fire protection requirements. [0003] As a new type of green and environmentally friendly building materials, in addition to the functions of traditional gypsum board, it also has the advantages of excellent fire resistance, moisture resistance and long service life. , lining of billboards, bulkheads of ships, sheds of warehouses, network floors and sidings of interior projects such as tunnels. It is a new type of building and industrial sheet with excellent performance. Its products are fire-pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/06C04B18/24
CPCY02W30/91
Inventor 容劲光田新陈春刚蔡浩
Owner LUOFEIER BUILDING MATERIAL SHENYANG GRP
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