The bottom of the structure the general use of lightweight thermal insulation material as thermal insulation layer, using castable pouring work layer. With the bottom structure of refractory brick masonry structure is a traditional the integrity is good, long life and other advantages, but there are still some problems.
(1) the overall casting after demoulding difficulty bottom (water seal groove template not taken);
(2) the bottom ring expands outward shift;
(3) the oven for hot gas floating, bottom not easy bake, slightly careless, cause the bottom burst.
In view of the above question us on bottom structure and materials to improve the,
(1) the working layer adopts a fast drying anti explosion castables, the castable short demoulding time, with quick drying explosion-proof function, is not easy to burst the oven, and high strength, good thermal shock stability, excellent properties of anti oxide skin good erosion resistance, is the ideal material for bottom working layer, construction technology and unique plus, can ensure the bottom working layer is not outward shift ring expansion.
(2) outside the ring edge using the preform, pouring working layer without formwork, thereby solving bottom construction not good demoulding difficulty, but also ensure the bottom of inner and outer ring between the girth size.
(3) the work of thickness, the thickness of the insulation layer thickening, improve the insulation performance of the bottom.
With the development of refractory industry technological progress, a number of high-quality refractory casting material is adopted, the structure of the furnace wall is improved, the working layer thickness becomes thinner gradually thickening, thermal insulation layer thickness, which is beneficial to improve the insulation performance of the furnace wall, but must pay attention, the particularity of annular furnace wall structure, i.e. furnace wall thickness ratio furnace wall width of some.
Contact Person: Mr. Pika