Horseshoe flame kiln, also known as longitudinal flame kiln, is currently the most widely used glass melting furnace in daily glass production. The structure of the horseshoe flame kiln is somewhat similar to that of the float line melting section, which includes: glass melting section, heat energy supply section, waste heat recovery section, and smoke exhaust and gas supply section. However, the position of the regenerator has changed and there is no clarification section. After the glass melt flows out through the flow channel, it is directly distributed and transported to each model point for product processing.
The selection of refractory materials for horseshoe flame kiln is similar to float line glass kiln, mainly using zirconium corundum (AZS) refractory material .
The horseshoe flame kiln is also divided into a melting section, including bottom and face bricks, pool wall bricks, breast wall bricks and large bricks. The regenerator section includes walls, checker bricks, and vaults; the small furnace connects the regenerator and the melting section. Sections of molten glass come out through the flow channel and are connected to each feed channel; the construction method of the refractory material is basically the same as that of the float line. The arc of the vault of the horseshoe kiln regenerator is different from that of the float line, reaching 180°C.
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