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Preparation method for environment-friendly decorating material and application

A decorative material and environmental protection technology, applied in the field of preparation of environmental decorative materials, can solve the problems of calcium oxide destroying micropores, reducing specific surface area, etc., to achieve the effect of reducing overburning of the outer layer, large specific surface area, and better product quality

Active Publication Date: 2019-02-12
申迎迎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the calcination temperature is too high, the natural organic matter in the oyster shell is decomposed, and more calcium oxide is produced, which also destroys the micropores of the natural calcium carbonate in the oyster shell and reduces the specific surface area.

Method used

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  • Preparation method for environment-friendly decorating material and application
  • Preparation method for environment-friendly decorating material and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of the environment-friendly decoration material comprises the steps of crushing oyster shells to 0.8-2 cm and drying them in sections to obtain the environment-friendly decoration material.

[0028] The staged drying is divided into two stages of pre-drying and calcination.

[0029] The pre-baking temperature is 120-130°C; the calcination temperature is 500±50°C.

[0030] The pre-baking time is 30 minutes; the calcination time is 10 minutes.

[0031] The pre-drying equipment is an airflow dryer; the calcining equipment is a fluidized drying furnace.

[0032] The airflow in the airflow dryer is provided by the boiling furnace; the airflow velocity is 3.5m 3 / s.

[0033] The heat of the boiling drying furnace is provided by a heat exchanger.

Embodiment 2

[0035] The preparation method of the environment-friendly decoration material comprises the steps of crushing oyster shells to 0.8-2 cm and drying them in sections to obtain the environment-friendly decoration material.

[0036] The staged drying is divided into two stages of pre-drying and calcination.

[0037] The pre-baking temperature is 120-130°C; the calcination temperature is 500±50°C.

[0038] The pre-baking time is 30 minutes; the calcination time is 10 minutes.

[0039] The pre-drying equipment is an airflow dryer; the calcining equipment is a fluidized drying furnace.

[0040] The airflow in the airflow dryer is provided by the boiling furnace; the airflow velocity is 3.5m 3 / s.

[0041] The heat of the boiling drying furnace is provided by a heat exchanger.

[0042] The oyster shells are dried in sections and then ball milled. After ball milling, the fineness of the environmentally friendly decorative material is 50 μm and the pH is 7.4.

Embodiment 3

[0044] The preparation method of the environment-friendly decoration material comprises the steps of crushing the shells to 0.9-2.5 cm and drying them in sections to obtain the environment-friendly decoration material.

[0045] The staged drying is divided into two stages of pre-drying and calcination.

[0046] The pre-baking temperature is 130-160°C; the calcination temperature is 500±40°C.

[0047] The pre-baking time is 35 minutes; the calcination time is 5 minutes.

[0048] The pre-drying equipment is an airflow dryer; the calcining equipment is a fluidized drying furnace.

[0049] The airflow in the airflow dryer is provided by the boiling furnace; the airflow velocity is 4m 3 / s.

[0050] The heat of the boiling drying furnace is provided by a heat exchanger.

[0051] After the shells are dried in sections, they are ball milled. After the ball milling, the fineness of the environmentally friendly decorative material is 55 μm, and the pH is 7.2.

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Abstract

The invention relates to a preparation method for an environment-friendly decorating material and application. The method comprises the steps of crushing shells and then carrying out staged baking andis characterized in that the staged baking temperature is 80 DEG C to 550 DEG C. According to the preparation method and the application, the sintering is uniform, the environment-friendly decoratingmaterial has a relatively large specific surface area, natural micropores and organic matters are reserved, the adhesion is good, and meanwhile, the environment-friendly decorating material further has the action of clearing out harmful gases.

Description

technical field [0001] The invention relates to a preparation method and application of an environment-friendly decorative material. Background technique [0002] The shell is the mantle of the mollusk living in the water, which is a calcification that protects the soft parts of the body formed by the secretion of a special glandular cell of the mollusk. The main component of shells is 95% calcium carbonate and a small amount of chitin. [0003] The shell can be divided into three layers from the outside to the inside: cuticle, prismatic layer (chalk layer), and nacre layer. But only shells are composed of calcite calcium carbonate, and most other shellfish shells are composed of aragonite (aragonite) calcium carbonate. [0004] Only the edge of the oyster shell is a prism layer, and most of the inside of the edge and near the center is a chalk layer. Particles, used in construction and decoration materials can purify the air and reduce smog. [0005] Oyster shells and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/02
CPCC04B18/023C04B14/28
Inventor 黄友吴洪文刘成斌
Owner 申迎迎
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