Method for producing lightweight partition board by sulfur fixation fly ash

A technology of lightweight partition board and fly ash, which is applied in the direction of solid waste management, sustainable waste treatment, climate change adaptation, etc., can solve problems such as environmental pollution and large land occupation, and achieve significant economic benefits and simple production equipment , Huge economic and social benefits

Inactive Publication Date: 2013-08-28
魏昭荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, my country produces about 60 million tons of CFBC sulfur-fixed fly ash every year, and almost all of the sulfur-fixed fly ash is discarded in ash storage yards, which not only takes up a lot of land, but also causes serious environmental pollution. Environmental and resource problems are becoming more and more serious. protrude

Method used

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  • Method for producing lightweight partition board by sulfur fixation fly ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 120 kg of sulfur-fixed fly ash for natural digestion. Then 20 kg of digested sulfur-fixed fly ash is mixed with 20 kg of cement, appropriate amount of water, and additives to prepare a foamed cement block, which is dried and cut into a lightweight partition board core material. Mix and stir 80 kg of digested sulfur-fixed fly ash, 50 kg of cement, appropriate amount of water, 15 kg of plant fiber and additives. After 20 minutes, the core material and wall material of the lightweight partition board are molded and casted in the lightweight partition board machine and mold. During molding, steel wire is added to the wall material as a reinforcing material, and the film and board are removed within 3 days.

Embodiment 2

[0027] Get 80 kg of sulfur-fixed fly ash for water spray digestion. Then mix and stir with 60 kilograms of cement, appropriate amount of water, 12 kilograms of plant fibers and additives. After 20 minutes, the polystyrene foam board core material and the above-mentioned mixture are molded and casted in a lightweight partition board machine and mold. During molding, steel wire mesh is added to the wall material as a reinforcing material, and the film and board are removed within 3 days.

Embodiment 3

[0029] Get 120 kg of sulfur-fixed fly ash for water spray digestion. Then 20 kg of digested sulfur-fixed fly ash is mixed with 20 kg of cement, appropriate amount of water, and additives to prepare a foamed cement block, which is dried and cut into a lightweight partition board core material. Mix and stir 90 kg of digested sulfur-fixed fly ash, 70 kg of cement, appropriate amount of water, 10 kg of plant fiber, 1 kg of PP fiber, 2 kg of glass fiber and additives. After 20 minutes, the core material and wall material of the lightweight partition board are molded and casted in the lightweight partition board machine and mould. During molding, glass fiber mesh and steel wire mesh are added to the wall material as reinforcement materials, and the film and board are removed within 3 days .

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Abstract

The invention provides a method for producing a lightweight partition board by sulfur fixation fly ash. Sulfur fixation fly ash is high content in free calcium oxide, and high content of sulfur trioxide could easily lead to concrete volume expansion cracking, thus a large amount of sulfur fixation fly ash is idle. The method comprises: A: digesting sulfur fixation fly ash; B: preparing a foam cement core material by using sulfur fixation fly ash, cement and the like; and C: pouring a lightweight partition board core material, a wall material and a reinforcing material for molding, removing film and maintaining. The lightweight partition board produced by the present invention has the characteristics of high strength, light weight, heat insulation, sound insulation, fire proof, water proof, shock resistance, impact resistance, acid and base resistance, impermeability, moisture absorption, anti-aging and the like; and can replace conventional partition red bricks, aerated bricks, magnesite boards and gypsum boards. The method of the invention changes the sulfur fixation fly ash to be harmless and recycled, turns waste into treasure, and has significant economic and social benefits.

Description

1. Technical field [0001] The invention relates to a method for producing lightweight partition boards by utilizing sulfur-fixed fly ash. 2. Background technology [0002] As a new generation of high-efficiency, low-pollution clean combustion technology, circulating fluidized bed (referred to as CFBC) coal-fired technology has the advantages of wide coal-fired adaptability, low pollution, low emissions, high thermal efficiency, etc. It has become the development trend of coal-fired power plants in my country. Sulfur-fixed fly ash is the fly ash collected from the flue after coal is burned in a circulating fluidized bed coal-fired boiler. It is a product generated when coal is burned at 850°C to 950°C. Circulating fluidized bed combustion technology adds a large amount of desulfurizer in the coal combustion process, resulting in higher free calcium oxide content, higher sulfur trioxide content, higher ignition loss, and red color in sulfur-fixed fly ash than ordinary coal fur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/08C04B28/00
CPCY02A30/244Y02W30/91
Inventor 魏昭荣
Owner 魏昭荣
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