Environment-friendly glass wool fiber granular cotton for buildings and preparation method thereof
A technology of glass wool fiber and glass fiber, which is applied in the field of environmentally friendly glass wool fiber granular cotton for construction and its preparation, can solve problems such as unsuitability for popularization and use, lower dust removal efficiency, and potential safety hazards, so as to prevent dust from returning and reduce transportation costs. Low, low production cost effect
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Embodiment 1
[0046] see figure 1 , including the following steps:
[0047] S1, weigh flat glass, high boron glass, borax, boronite, quartz sand, soda ash, potassium feldspar or (and) albite feldspar, dolomite, limestone or (and) according to the composition of environmentally friendly glass wool fiber granular cotton ) calcite, mixed evenly, uniformity ≥ 98%;
[0048] S2, putting the mixed material in step S1 into a kiln for calcination, and smelting it into a glass liquid with uniform composition, no impurities and transparent glass, the temperature of the obtained glass liquid is 1200°C;
[0049] S3, reduce the temperature of the molten glass to 1100-1120°C, flow it into a centrifuge with a rotation speed of 1800-2500r / min through the drain plate at a flow rate of 850kg / h, and throw out the glass wool fibers through a centrifugal disc with a temperature of 980'°C , the obtained glass wool fiber is composed of the following components in terms of mass percentage: Si0 2 :55-55.5%,Na 2 ...
Embodiment 2
[0055] S1, weigh flat glass, high boron glass, borax, boronite, quartz sand, soda ash, potassium feldspar or (and) albite feldspar, dolomite, limestone or (and) according to the composition of environmentally friendly glass wool fiber granular cotton ) calcite, mixed evenly, uniformity ≥ 98%;
[0056] S2, put the mixed material into the kiln for calcination, and smelt it into a glass liquid with uniform composition, no impurities and transparent glass, and the temperature of the obtained glass liquid is 1250°C;
[0057] S3, reduce the temperature of the molten glass to 1120-1140°C, flow it into a centrifuge with a rotation speed of 2500-3200r / min through the drain plate at a flow rate of 700kg / h, and throw out the glass wool fibers through a centrifugal disc with a temperature of 960°C, Gained glass wool fiber consists of the following components in terms of mass percentage:
[0058] Si0 2 :55.5~56%,Na 2 O:14~16%, K 2 O: 0.8~1.4%, B 2 o 3 : 6.5-7.5%, Ca0+MgO: 10-11% (the...
Embodiment 3
[0064] S1, weighing according to the composition of environmentally friendly glass wool fiber granular cotton Take waste flat glass, borax, boronite, and soda ash. Mix evenly, uniformity ≥ 98%;
[0065] S2, put the mixed material into the kiln for calcination, and smelt it into a glass liquid with uniform composition, no impurities and transparent glass, and the temperature of the obtained glass liquid is 1200°C;
[0066] S3, reduce the temperature of the molten glass to 1140-1170°C, flow it into a centrifuge with a rotation speed of 3500-4000r / min through the drain plate at a flow rate of 550kg / h, and throw out the glass wool fibers through a centrifugal disc with a temperature of 940'°C , the obtained glass wool fiber is composed of the following components in terms of mass percentage: Si0 2 :56~56.5%,Na 2 O:11~14%, K 2 O: 0.8~1.4%, B 2 o 3 : 7-7.5%, Ca0+MgO: 11-12% (the contents of Ca0 and MgO can be adjusted arbitrarily within the range of the combined amount), Al 2 ...
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