Insulation problems after coke stop production

Xinmi Changxing Refractories experts explain your heat issue after coke stop production:

Stop production insulation methods, there is insulation and air furnace with coke, two kinds of insulation. Both methods are basically the same on process management. When the holding time is only a few days, the door in good condition, you can consider with coke insulation. Thus, the carbonization chamber graphite can not easily be burned, is conducive to maintaining the coke oven rigor. If the stop production time is longer, use more air furnace insulation, which can prevent air from leaking into the carbonization chamber of coke combustion and cause slagging furnace wall.

The key stage in stop production insulation to protect the furnace is: on the one hand a certain furnace temperature control, maintaining firebrick above the crystalline transformation point, to prevent air fleeing reduce oven temperature inside the furnace and so that local masonry damage. During this period, the temperature of coke is much lower than normal production. Since leaving the furnace temperature furnace to reduce shrink, resulting in cracks in the surface and inside the furnace, furnace damage rigor. These cracks in the resumption of production could easily lead to serious blow even cause local temperature and burn furnace. Therefore, during the stop production insulation, furnace surface cracks often respond seal, to prevent cold air into the furnace interior.

Need to seal the site and sealing methods are: furnace frame and door knife edge, using shotcrete method of sealing; riser pipe socket roots and Bridge Department, loading coal hole cover and seat parts, small stove parts, oblique Road closures front and regenerative chamber walls and other fire department can use clay mud pointing; small flue socket parts used asbestos rope packing clay gray and so on.

When to resume production, to each burner carbonization chamber walls were spraying and wiping up maintenance, eliminating the formation of cracks due to thermal stop production.

Coke stop production after more dense insulation problems caused by new Changxing technical experts for you to explain, if there is anything unclear, please feel free to contact us.