Preparation method and application of environment-friendly decorative material
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 effects of good adhesion, large specific surface area, and removal of harmful gases
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Embodiment 1
[0028] 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.
[0029] The staged drying is divided into two stages of pre-drying and calcination.
[0030] The pre-baking temperature is 120-130°C; the calcination temperature is 500±50°C.
[0031] The pre-baking time is 30 minutes; the calcination time is 10 minutes.
[0032] The pre-drying equipment is an airflow dryer; the calcining equipment is a fluidized drying furnace.
[0033] The airflow in the airflow dryer is provided by the boiling furnace; the airflow velocity is 3.5m 3 / s.
[0034] The heat of the boiling drying furnace is provided by a heat exchanger.
Embodiment 2
[0036] 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.
[0037] The staged drying is divided into two stages of pre-drying and calcination.
[0038] The pre-baking temperature is 120-130°C; the calcination temperature is 500±50°C.
[0039] The pre-baking time is 30 minutes; the calcination time is 10 minutes.
[0040] The pre-drying equipment is an airflow dryer; the calcining equipment is a fluidized drying furnace.
[0041] The airflow in the airflow dryer is provided by the boiling furnace; the airflow velocity is 3.5m 3 / s.
[0042] The heat of the boiling drying furnace is provided by a heat exchanger.
[0043] 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
[0045] 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.
[0046] The staged drying is divided into two stages of pre-drying and calcination.
[0047] The pre-baking temperature is 130-160°C; the calcination temperature is 500±40°C.
[0048] The pre-baking time is 35 minutes; the calcination time is 5 minutes.
[0049] The pre-drying equipment is an airflow dryer; the calcining equipment is a fluidized drying furnace.
[0050] The airflow in the airflow dryer is provided by the boiling furnace; the airflow velocity is 4m 3 / s.
[0051] The heat of the boiling drying furnace is provided by a heat exchanger.
[0052] 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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