Preparation method for hollow glass mirco-bead

A technology of hollow glass microspheres and hollow microspheres, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve problems such as instability, heavy weight, and easy breakage, and achieve the effect of simple structure and convenient production process

Inactive Publication Date: 2007-07-04
曾佑成
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Problems solved by technology

The main technology of hollow glass microspheres lies in its hollow rate. Due to the limitation of the existing production process, the hollow rate of most hollow glass microspheres is only about 70%, so it has the disadvantages of small volume and heavy weight.
The hollow glass microspheres produced by some manufacturers have a large hollow rate, but they are unstable, easy to break, and have low use value.
The whitening ultrafine hollow glass microspheres disclosed in the patent document 99119425.5 and its preparation method cannot improve the hollow rate of the hollow glass microspheres.

Method used

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  • Preparation method for hollow glass mirco-bead

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Embodiment Construction

[0015] 1. The preparation method is as follows: (1) After mixing 90 kg of sodium silicate and 10 kg of boric acid raw materials, enter the spray dryer, and spray dry at an air inlet temperature of 300 degrees and an air outlet temperature of 145 degrees. The powder was collected and its powder was shaped into a spherical shape, which was a solid sphere with a diameter of 5 μmr.

[0016] (2) The powder is put into the upper section of the high temperature main tower of the hollow microsphere high temperature energy-saving furnace, and the inlet air temperature of the upper section is 650 degrees. Under the action of natural wind entering through the body through hole, it falls into the first and second stage recoverers respectively, and the temperature of the air outlet of the lower section of the cone is 150 degrees.

[0017] Adopt the above-mentioned method to prepare the device of hollow glass microsphere, it comprises spray drier, hollow microsphere high-temperature energy-...

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Abstract

The invention relates to a method for preparing hollow glass bead, which comprises following steps: (1) preparing natrium silicate and boron, feeding them into spray drying machine, drying with temperature being inlet air of 180-300 Deg. C, and outlet being 120-145 Deg. C, collecting powder, which is solid spherical with diameter being 5-50 um; (2) feeding said powder from upper part of high temperature main tower of hollow glass bead energy-saving furnace, the temperature of inlet air in upper part is 400-650 Deg. C, the powder falls into the first and second under action of air force from air fan and normal air force from hole in lower part of pyramidale during falling from upper section to lower section. The temperature in lower pyramidale outlet is 115-150 Deg. C. The invention is characterized by simple construction of device and convenient preparation process.

Description

Technical field: [0001] The utility model relates to the technical field of hollow glass microspheres, in particular to a preparation method of hollow glass microspheres. Background technique: [0002] Hollow glass microsphere is a unique and stable non-toxic and odorless hollow particle of non-metallic material, containing inert gases such as nitrogen and carbon dioxide in the air. Due to its unique hollow structure and physical and mechanical properties, as a multifunctional filling material, it can improve the quality, increase functions and reduce costs of products in various industries, so it has a wide range of uses. Hollow glass microspheres are spherical, isotropic, and have uniform stress and strain. They can be used as fillers for polymer materials, or compounded with metal and non-metal materials to make various composite materials with different functions or characteristics. They are widely used in Marine, shipbuilding, aerospace and space development, architect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B19/10C03C12/00
Inventor 曾佑成
Owner 曾佑成
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