Eco-friendly flexible facing brick prepared from modified waste residues and preparation method thereof
A kind of flexible decoration and environment-friendly technology, applied in the field of decorative materials, can solve the problems of natural resource consumption, dust, noise pollution, space occupation, etc., and achieve the effect of improving anti-aging, good stability and good compactness
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Embodiment 1
[0047] Modified open hearth slag is adopted in the present embodiment, and obtained through the following pretreatment steps:
[0048] Step 1: Select open hearth slag with an aging time of 5 months, and use an impact crusher or an autogenous mill to crush to obtain fragments with a particle size less than 5mm;
[0049] Step 2: remove some metal iron lumps and RO phase slag with high FeO content by magnetic separation to obtain open hearth slag with suitable particle size and less impurities;
[0050] Step 3: Soak the open hearth slag with 10% NaOH solution and heat it for 7 minutes to remove the oil stains on the surface, then use 5% H 2 SO 4 The solution was soaked for 30 minutes to remove surface oxides, and finally rinsed with water to pH 7.0;
[0051] Step 4: Use a mill for grinding treatment to obtain a part of open hearth slag particles with a particle size of less than 1 mm, which is used as the aggregate in the flexible facing brick; the obtained part has a specific ...
Embodiment 2
[0065] In this embodiment, converter slag is used as waste slag, and modified converter slag needs to be obtained through the following pretreatment steps:
[0066] Step 1: Select the converter slag with an aging time of 5 months, and use an impact crusher or an autogenous mill to crush to obtain fragments with a particle size of less than 5mm;
[0067] Step 2: remove some metal iron lumps and RO phase slag with high FeO content by magnetic separation method to obtain converter slag with suitable particle size and less impurities;
[0068] Step 3: Soak the converter slag with 10% NaOH solution and heat it for 7 minutes to remove oil stains on the surface, and then use 5% H 2 SO 4 The solution was soaked for 30 minutes to remove surface oxides, and finally rinsed with water to pH 7.0;
[0069] Step 4: Use a mill for grinding treatment to obtain a part of converter slag particles with a particle size of less than 1 mm, which is used as the aggregate in the flexible facing bric...
Embodiment 3
[0083] In the present embodiment, electric furnace slag is used as the raw material of modified electric furnace slag, which needs to be obtained through the following pretreatment steps:
[0084] Step 1: Select the electric furnace slag with an aging time of 5 months, and use an impact crusher or an autogenous mill to crush to obtain fragments with a particle size of less than 5mm;
[0085] Step 2: remove some metal iron lumps and RO phase slag with high FeO content by magnetic separation method to obtain converter slag with suitable particle size and less impurities;
[0086] Step 3: Soak the electric furnace slag with 10% NaOH solution and heat it for 7 minutes to remove oil stains on the surface, and then use 5% H 2 SO 4 The solution was soaked for 30 minutes to remove surface oxides, and finally rinsed with water to a pH of 7.0;
[0087] Step 4: Use a mill for grinding treatment to obtain a part of the electric furnace slag particles with a particle size of less than 1 ...
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Abstract
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