Production method for glass micro-beads and apparatus for same

Abstract

The invention discloses a production method for glass micro-beads and an apparatus for same. The production method includes the steps of: a) arranging a bead forming area in the middle of an inverted conical cylinder body; b) feeding glass micro-powder to the bead forming area; c) enabling the glass micro-powder to move in a circulated reciprocating manner in the bead forming area; d) heating the glass micro-powder with laser to melt the powder to form the glass micro-beads; and e) feeding the glass micro-beads into a product collection apparatus. The apparatus includes the cylinder body, a three-way pipe communicated with the top of the cylinder body, a laser device, a side air blower and a material feeder which are arranged at one side of the cylinder body, a laser incident port, a laser reflecting mirror, a side air inlet and a material inlet which are arranged on a side wall of the cylinder body, and a valve board arranged in the three-way pipe. In the invention, the glass micro-powder is irradiated by laser beam, so that the glass micro-powder is heated and melted quickly, uniformly and completely to form the glass micro-beads which are then quickly cooled and shaped, thereby avoiding a problem of agglomeration and wall adhesion. The method and the apparatus save energy and improve yield rate.

Description

technical field [0001] The invention relates to a production method of light inorganic materials and a device thereof, in particular to a production method of glass microspheres and a device thereof. Background technique [0002] At present, the production methods of glass beads mainly include the flame flotation method, the release agent method and the spraying method, among which the flame flotation method is used more. Usually, the production device of the flame flotation method is composed of a beading furnace, a burner, a feeder and a finished product collection device. The beading furnace is a vertical cylinder, the burner is arranged at the lower part of the cylinder, and the finished product collection device is arranged at the top of the cylinder. When working, the feeder puts the glass powder with the required particle size into the vertical cylinder. The glass powder floats in the upward high-temperature airflow generated by the burner, and is heated and melted to...

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Problems solved by technology

This type of device usually uses gaseous fuel, such as natural gas, producer gas, etc. Most of the heat energy is used to heat the air, the thermal efficiency is low, and the heat energy consumption is large. After the formation of microbeads, the heat capacity of the combustion gas is large, causing the microbeads to cool down. The curing speed is slow, and it is easy to cause mutual bonding and sticking to the wall, which reduces the yield

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