Method for producing fire-resisting glass and dedicated production equipment

Abstract

This invention discloses method and specific apparatus for producing fireproof glass. The apparatus comprises: an upper stage plate, a furnace, a cooling wind grating and a lower stage plate. A baffle is set between the heating furnace and the cooling wind grating. The method comprises: (1) spray-coating a cesium / potassium salt solution onto glass at normal temperature; (2) naturally wind-drying the spray-coated glass at normal temperature, placing in a 680-725 deg.C tempering furnace, rapidly heating, cooling, circulating the glass between the heating furnace and the cooling wind grating by a roll so that the heating and cooling temperature is uniform, and unloading to obtain fireproof glass. The cesium / potassium salt solution comprises: cesium salt 0.8-1.2%, potassium salt 38-41%, acetone 40-45%, formic acid 8-13%, and Swiss-78 6-8%. The fireproof glass has such advantages as high heat resistance, low specific gravity, high light permeability, no yellowing, and no air bubbles.

Description

Technical field: [0001] The invention relates to a production method and special production equipment of a single piece of fireproof glass. Background technique: [0002] Most of the glass in the original civil buildings and industrial buildings is ordinary flat, solid or tempered and insulating glass. The common disadvantages of these glass products are: [0003] A) Glass surface stress is not high: [0004] The surface compressive stress of ordinary glass is generally 15-65 MPa, the surface compressive stress of tempered glass is generally 70-180 MPa, and the surface compressive stress of high-temperature fireproof glass is 100-150 MPa higher than that of tempered glass produced by traditional technology; [0005] B) The thermal shock resistance is not high: [0006] Due to the thermal radiation of the fire or the flame (high-temperature smoke) directly acting on the glass surface, the glass surface is heated rapidly, and the thermal shock resistance of the glass is impr...

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Problems solved by technology

[0005] B) The thermal shock resistance is not high:

[0006] Due to the thermal radiation of the fire or the flame (high-temperature smoke) directly acting on the glass surface, the glass surface is heated rapidly, and the thermal shock resistance of the glass is improved. It means that its integrity can be guaranteed in the event of a fire. Therefore, the fire resistance of tempered glass It is much better than ordinary glass, but ordinary tempered glass cannot meet the fire resistance requirements of fireproof glass;

[0007] C) Fire integrity is not high:

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