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Light heat insulation and hydrophobic glass bead used for construction and preparation method of light heat insulation and hydrophobic glass bead

A water-repellent glass, construction technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve problems such as unfavorable industrial production, achieve recycling, low water absorption, good weather resistance and thermal insulation performance Effect

Active Publication Date: 2017-04-26
XINYANG KEMEI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this production method needs to strictly control the production temperature, which is not conducive to industrial production, and the water absorption rate is still as high as 38%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The lightweight heat-insulating and hydrophobic glass beads for construction provided in this embodiment include the following components in mass percentages: 72% of clay-formed perlite mining tailings, 10% of expanded perlite micropowder, 5% of soda ash, 1.2% of fluorite powder, green Silicon carbide dust collection powder 0.8%, quicklime powder 1.0%, water glass 10%.

[0023] The specific steps are:

[0024] Grinding and pulverizing the clay-formed perlite mining tailings, the expanded perlite micropowder, the fluorite powder, the soda ash, the green silicon carbide dust collection powder and the quicklime powder into the feeder, Put it into the Raymond mill through a bucket elevator, mix and grind it into powder, and pass through a 100-mesh sieve to obtain raw material powder;

[0025] Humidification and granulation: add the raw material powder into the water glass and mix evenly for humidification, and then granulate the humidified raw material powder to obtain a b...

Embodiment 2

[0030] The difference between this example and Example 1 is that the lightweight heat-insulating and hydrophobic glass beads for construction include the following components in mass percentages: 77% of clay-formed perlite mining tailings, 5% of expanded perlite micropowder, Soda ash 3%, fluorite powder 2%, green silicon carbide dust collection powder 0.7%, quicklime powder 0.3%, water glass 12%;

[0031] The step of making beads by puffing includes: the dried and preheated particles are lifted to the top of the puffing furnace by a bucket elevator, and put into the puffing furnace at 1250°C through a flow divider, and vitrified and expanded for 17 s to obtain the light weight for construction. Insulation and hydrophobic glass beads;

[0032] The lightweight heat-insulating and hydrophobic glass beads for construction are closed-cell glass beads, and the bulk density is 126 kg / m after testing. 3 , the particle size is 8-16 mesh, the thermal conductivity is 0.052 W / (m.K), the ...

Embodiment 3

[0034] The difference between this example and Example 1 is that the lightweight heat-insulating and hydrophobic glass beads for construction include the following components in mass percentages: 62% of clay-formed perlite mining tailings, 20% of expanded perlite micropowder, Soda ash 5%, fluorite powder 2%, green silicon carbide dust collection powder 1%, quicklime powder 0.5%, water glass 9.5%;

[0035] The step of making beads by puffing includes: the dried and preheated particles are lifted to the top of the puffing furnace by a bucket elevator and put into the puffing furnace at 1230°C through a flow divider, and vitrified and expanded for 20 s to obtain the lightweight Insulation and hydrophobic glass beads;

[0036] The lightweight heat-insulating and hydrophobic glass beads for construction are closed-cell glass beads. After testing, the bulk density is 124 kg / m 3 , the particle size is 8-16 mesh, the thermal conductivity is 0.048 W / (m.K), the volume water absorption ...

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Abstract

The invention provides a light heat insulation and hydrophobic glass bead used for construction. The light heat insulation and hydrophobic glass bead comprises, by mass, 60%-80% of clayed perlite production tailings, 5%-25% of expanded perlite micro powder, 0.5%-2.0% of fluorite powder, 0.5%-5.0% of pure alkali, 0.3%-1% of green silicon carbide dust collection powder, 0.5%-1% of quicklime powder and 8%-12% of water glass. The invention further provides a preparation method of the light heat insulation and hydrophobic glass bead used for construction, and the light heat insulation and hydrophobic glass bead used for construction has the beneficial effects of being small in volume density, good in heat insulation performance and low in water absorption rate and is wide in application prospect.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a lightweight heat-insulating and hydrophobic glass bead for building and a preparation method thereof. Background technique [0002] At present, expanded perlite ceramsite is generally prepared by crushing perlite ore, grading and sieving to produce sand with a fineness diameter of 0.15-1 mm, and then preheating at 200-450 °C, in coal-fired, gas-fired, or electric-fired In the rotary kiln or cupola of the drum kiln, it is rapidly extruded at a high temperature of 1150-1300 ℃ to prepare a bulk density of 80-120 kg / m 3 lightweight ceramsite. However, the expanded perlite ceramsite produced by this method has perforated openings, and its cylinder compressive strength is low, and its water absorption rate is high, which is easy to cause breakage, and cannot be applied to heat preservation in a wet environment. [0003] Chinese patent CN1151992C provides a manufacturing method of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C11/00C03C12/00C03C6/06C03B19/10C04B14/24
CPCC03B19/107C03C1/002C03C11/002C04B14/24
Inventor 陈延东韩复兴陈延新吴长泉
Owner XINYANG KEMEI NEW MATERIALS
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