Tunnel kiln structure

Tunnel kiln structure:

1. Red brick is laid for the pre-heating zone and cooling zone where the temperature is below 200°C. The rest part, baking zone and the innermost wall of insulating zone are adopting clay refractory brick. The clay insulting bricks will be used for laying the insulting area. Meanwhile, refractory fabric felt (for the relative part of temperature curve above 600 Celsius) or rock wool felt will be used for stuffing and red bricks will be laid on the external wall.

2. Kiln roof structure:

a. One kiln car space remained in low temperature zone on both sides, which adopt cast-in concrete top slab. For other position, clay material plate, hanger plate through davit hang under H type steel beam by cast product. Both sides wall body support the main beam’s weight.

b. High aluminum cotton ,refractory fibro felt, rock wool felt, rock wool board are put on the refractory hander plate, which compose complex insulation layer.

c. The crack between the top plates will be impacted by high aluminum fiber.

d. High temperature binder is being filled up to the gap between the boards, and is being painted on the upside of the insulating layer, thus to ensure the material’s insensitivity and structure’s durability.

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