Process for carburization production of fiber-reinforced calcium silicate board

A calcium silicate board, fiber reinforced technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of low flexural strength, poor overall quality and high breakage rate of fiber reinforced calcium silicate board problems, to achieve the effect of increased density and impermeability (water), improved quality, increased tensile and flexural strength

Active Publication Date: 2014-12-24
台荣建材(湖州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical purpose of the present invention is to provide a carbonization production process of fiber-reinforced calcium silicate board, which solves the problems of low flexural strength of fiber-reinforced calcium silicate board, high breakage rate in the production process, and poor overall quality in the traditional method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: A carbonization production process of fiber reinforced calcium silicate board,

[0035] The following carbonization reaction solution is a solution containing carbonate or bicarbonate, and the carbonization reaction relates to the preparation of a solution containing carbonate, which can be made from carbonate-containing chemicals such as sodium carbonate, sodium bicarbonate, soda water, or It is made by dissolving carbon dioxide in water.

[0036]① Raw materials: mainly calcareous materials, siliceous materials and fiber materials, with fly ash and silicon micropowder as auxiliary materials; the calcium material is specifically cement, the siliceous material is specifically quartz sand or diatomite, and the fiber material is specifically It is asbestos or wood pulp or artificial fiber; the proportion of raw materials is as follows: cement accounts for 30wt%, lime accounts for 15wt%, quartz sand or diatomaceous earth accounts for 45wt%, wood pulp or artifi...

Embodiment 2

[0043] Embodiment 2: A carbonization production process of a fiber reinforced calcium silicate board,

[0044] The following carbonization reaction gas is a gas containing carbon dioxide, and the concentration range of carbon dioxide in the carbonization reaction gas in the overall process is controlled at 10~40wt%. The carbonization reaction gas involves the preparation of carbon dioxide, which can be obtained by the reaction of calcium carbonate and hydrochloric acid, or by heating limestone, or obtained from an industrial gas supplier, or obtained after purification of flue gas after combustion of factory boilers.

[0045] ① Raw materials: mainly calcareous materials, siliceous materials and fiber materials, with fly ash and silicon micropowder as auxiliary materials; the calcium material is specifically cement, the siliceous material is specifically quartz sand or diatomite, and the fiber material is specifically It is asbestos or wood pulp or artificial fiber; the proport...

Embodiment 3

[0052] Embodiment three: a carbonization production process of fiber reinforced calcium silicate board,

[0053] The following carbonization reaction solution is a solution containing carbonate or bicarbonate; the following carbonization reaction gas is a gas containing carbon dioxide, and the concentration range of carbon dioxide in the carbonization reaction gas in the overall process is controlled at 10~40wt%. The carbonization reaction gas involves the preparation of carbon dioxide, which can be obtained by the reaction of calcium carbonate and hydrochloric acid, or obtained by heating limestone, or obtained from an industrial gas supplier, or obtained after purification of flue gas after combustion of factory boilers; carbonization reaction The liquid involves the preparation of a carbonate-containing solution, which can be prepared from carbonate-containing chemicals such as sodium carbonate, sodium bicarbonate, soda water, etc., or by dissolving carbon dioxide in water. ...

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PUM

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Abstract

The invention relates to a process for carburization production of a fiber-reinforced calcium silicate board. The process comprises the following steps: preparation of the following materials: calcareous materials, siliceous materials and fiber materials as main materials and fly ash and silicon powder as auxiliary materials; forming, namely uniformly mixing the raw materials to form slurry and feeding the slurry into a plate blank forming machine for forming and applying a carburization reaction solution or carburization reaction gas to the surfaces of plate blanks; stacking, namely removing rough edges of the plate blanks, then stacking the plate blanks one after another and spraying the carburization reaction solution or carburization reaction gas to each plate blank; static curing, including dry type static curing and / or wet type static curing; autoclave curing, namely putting the plate blanks in a high-temperature high-pressure steam environment; stripping, namely separating the plate blanks one after another; and drying, namely drying the plate blanks one after another, wherein the carburization reaction solution is a solution containing carbonate radicals and bicarbonate radicals; the carburization reaction gas is a gas containing carbon dioxide. The process avoids severe bonding of the plate blanks during production, and is an improved process, and therefore the production efficiency is improved, and the product quality is further improved.

Description

technical field [0001] The invention relates to the technical field of cement boards, in particular to a carbonization production process for fiber-reinforced calcium silicate boards. Background technique [0002] Cement-based panels have two specifications: flat and batten: flat and batten. Slats are usually hollow walls with a certain thickness, and vacuum-extruded fiber cement hollow panels can be used for external enclosure structures. The slabs are usually thin, and need to be combined with keels and other components to form a non-load-bearing wall of a certain thickness. Most of the slabs are only used for interior walls. When certain conditions are met, individual panels can also be used for exterior walls. [0003] At present, the panels on the market can be roughly divided into two categories: fiber cement panels and fiber reinforced calcium silicate panels. The former has been gradually eliminated from the market due to various physical defects, such as dimensiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/10C04B16/02C04B18/08C04B14/08
CPCY02W30/91
Inventor 李俊雄
Owner 台荣建材(湖州)有限公司
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