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Fiber cement product and manufacturing method thereof

A technology of fiber cement and manufacturing method, which is applied in the direction of separation method, chemical instrument and method, and separation of dispersed particles, which can solve the problems that cannot be popularized and applied in water-deficient areas, and achieve the effects of low price, reduced production cost, and reduced waste water discharge

Inactive Publication Date: 2019-07-05
ZHONGJING ECO IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it impossible to promote the application in water-scarce areas

Method used

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  • Fiber cement product and manufacturing method thereof
  • Fiber cement product and manufacturing method thereof
  • Fiber cement product and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0047] Mix the raw materials listed in the following table evenly to obtain the flue gas treatment agent. The particle size of the nano-scale is 20nm; the particle size of the micro-scale is 10μm.

[0048] Table 1, the formula of flue gas treatment agent

[0049]

Embodiment 1～3

[0051](1) The flue gas treatment agent of Preparation Example 1 was used for dry flue gas desulfurization and denitrification. The flow velocity is 2.5m / s, and the oxygen content is 15vol%; other parameters of the flue gas inlet and parameters of the flue gas outlet are shown in Tables 2 and 3.

[0052] (2) Mix the by-products with industrial wastewater to form a slurry, and then mix them evenly with magnesium oxide, wood pulp fiber, fly ash (200 mesh), slag powder (200 mesh) and additives (polycarboxylate superplasticizer) to obtain Mixture. The industrial wastewater is treated industrial wastewater with a pH value greater than 5 from within the enterprise.

[0053] (3) The mixture is made into a blank, which is then cured, dried and sanded to obtain a fiber cement product.

[0054] Table 2. Working condition parameters of flue gas desulfurization and denitrification project

[0055] serial number project quantity unit 1 Inlet flue gas volume (working...

Embodiment 4～6

[0064] (1) The flue gas treatment agent of Preparation Example 1 was used for dry flue gas desulfurization and denitrification. The flow velocity is 2.5m / s, and the oxygen content is 15vol%; other parameters of the flue gas inlet and parameters of the flue gas outlet are shown in Tables 6 and 7.

[0065] (2) Mix the by-products with industrial wastewater to form a slurry, and then mix them evenly with magnesium oxide, wood pulp fiber, fly ash (200 mesh), slag powder (200 mesh) and additives (polycarboxylate superplasticizer) to obtain Mixture. The industrial wastewater is treated industrial wastewater with a pH value greater than 5 from within the enterprise.

[0066] (3) The mixture is made into a blank, which is then cured, dried and sanded to obtain a fiber cement product.

[0067] Table 6. Working condition parameters of flue gas desulfurization and denitrification project

[0068]

[0069]

[0070] Table 7. Emissions from desulfurization and denitrification proje...

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Abstract

The invention discloses a fiber cement product and a production method thereof. The method comprises the following steps: (1) performing dry desulfurization and denitrification on flue gas by adoptinga flue gas treating agent to obtain by-products, wherein the flue gas treating agent comprises the following components in parts by weight: 10-25 parts of nano metal oxide, 10-25 parts of micro metaloxide and 40-60 parts of magnesium oxide; (2) mixing the by-products with industrial waste water to obtain slurry, and then uniformly mixing the slurry with magnesium oxide, fibers, coal ash, slag powder and additives to obtain a mixture; and (3) preparing the mixture into a green body, then curing, drying and sanding to obtain the fiber cement product. The invention can realize integrated treatment of flue gas desulfurization and denitrification, waste water and solid waste, and the qualified fiber cement product can be obtained.

Description

technical field [0001] The invention relates to a fiber cement product and a manufacturing method thereof, in particular to a fiber cement product based on dry flue gas desulfurization and denitrification and a manufacturing method thereof. Background technique [0002] Fiber cement products are a composite building wall material made of cementitious material as the matrix and fiber as the filling reinforcement material, which is made by stirring, forming, pressurizing and curing. Compared with traditional building materials, cement fiber products have the characteristics of moisture-proof, anti-corrosion, fire-proof, etc., and have good sound insulation and heat insulation performance. [0003] In the field of housing construction, fiber cement products are mainly used in partition walls, suspended ceilings, ceilings, wet house partition walls and suspended ceilings, firewalls in office buildings, and indoor ground laying. In the field of industrial construction, fiber cem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/81
CPCY02W30/91
Inventor 童裳慧
Owner ZHONGJING ECO IND CO LTD