Wet laying process of light weight insulation bricks
Mixing mud → process inspection → sawing and processing lightweight insulation bricks → construction.
2 Mix mud
(1) When the mud is consisted of refractory mud or diatomite powder combined with clay mud, mechanical stirring should be used as much as possible, and the stirring time should not be less than 5min. The consistency of the mud is controlled by adding water.
(2) If no mechanical stirring, the immersion method should be adopted, that is, the raw materials used for making the masonry mud should be submerged and flooded, soaking naturally, the immersion time should not be less than 24h. After soaking, remove the excess water, and mix the mud.
3. Process inspection
(1) Before laying diatomite bricks, check whether the contact surface of the diatomite bricks and the kiln shell meets the requirements.
(2) When laying heavy furnace walls, check whether the quality of the previous refractory masonry meets the requirements and whether the accessories are installed correctly.
(1) Bricks or other processed bricks used for staggered insulation of masonry should be sawed with a hand saw or hacksaw. They cannot be cut with a brick knife.
(2) When batch processing of light-weight thermal insulation bricks, it is advisable to use model control and directly draw lines with a saw blade or steel needle.
(3) In order to improve the processing accuracy, at the contact point between the refractory fire brick and the special-shaped steel structure, the processing line should be determined by the imprint method.