A mixer device for homogenization and clarification

Abstract

The title of the invention is a homogenizing and clarifying agitator device. The invention belongs to the technical field of glass smelting. It mainly achieves the purpose of increasing the glass transmittance by improving the homogenization and clarification efficiency and shortening the melting time. Its main features are: including the stirring shaft, the air hole array tube or the air hole array tube and the stirring frame, and the rotating ventilation joint; among them, the air hole array tube is installed at the bottom of the stirring shaft, and the stirring frame or air hole array tube is installed at the bottom of the stirring shaft; the air hole Air holes are provided on the entire tube wall of the array tube; the stirring shaft is provided with an inner cavity with an open upper end, and the inner cavity communicates with the inner cavity of the air hole array tube; the upper end of the stirring shaft is provided with a rotary ventilation joint. The invention has the characteristics of simultaneously homogenizing the large-area upper and lower parts of the glass liquid in the crucible, gathering and floating the bubbles in the glass liquid, shortening the time of homogenization and clarification, and is mainly used for small batches or intermittent crucible clinker for experiments Preparation and production.

Description

technical field [0001] The invention belongs to the technical field of glass smelting, in particular to a stirring and homogenizing device for an intermittent crucible glass furnace. Background technique [0002] The optical glass used in small batches or experiments is generally produced in batch crucibles. This production method mainly uses agitator for homogenization or stirring and bubbling for homogenization. With the improvement of imaging quality requirements, the requirements for optical glass transmittance also increase. Therefore, major optical glass manufacturers have researched ways to increase transmittance. Shortening the homogenization or clarification time is the method to increase transmittance. one. In the patent CN 202046986 U, the method of bubbling and stirring is proposed to accelerate the homogenization of the glass. The advantage of this method is that it can mix the upper and lower glass liquids and increase the homogenization speed. The disadvantag...

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Problems solved by technology

In the patent CN 202046986 U, the method of bubbling and stirring is proposed to accelerate the homogenization of glass. The advantage of this method is that it can mix the upper and lower glass liquids and increase the homogenization speed. The disadvantage is that it is inconvenient to use and requires two or more One person looks at the position of the vent tube when it is lowered into the crucible, and one person puts and fixes the vent tube from the furnace top. At the same time, because the platinum vent tube is prone to deformation and bending at high temperature, it is easy to cause adhesion to the crucible wall. In severe cases, it may cause shutdown of the furnace

Patent CN 105174692 A proposes to add a stirrer above the general stirrer to speed up the homogenization. This method can improve the effect in theory, but it is rarely used in actual production. The platinum consumption is large and the loss is increased. , which is not conducive to cost saving, and cannot achieve the purpose of quickly mixing the upper and lower layers of glass liquid

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