Integrated masonry of refractory materials for iron mixing furnaces

According to the integrated masonry process structure of the mixing furnace, in the top of the furnace and the top part of the iron spout (Ⅲ), using a 3-layer structure, in order for the primary insulation layer, secondary insulation layer, work layer; furnace wall and furnace bottom part (Ⅰ), using a 5-layer structure, in order for the primary insulation layer, secondary insulation layer, transition layer, early warning safety layer, work layer; iron spout bottom part (Ⅱ), using a 5-layer structure, in order for the primary insulation layer, two insulation layer, transition layer, early warning safety layer, work layer.

Mixed iron furnace lining integrated masonry process mainly has the following characteristics: 1.

1. Shorter construction period. “Zhenye” mixed iron furnace integrated masonry process due to the adoption of a more reasonable construction process and engineering supplies, construction time is more scientific and compact, saving 5 days than the traditional overall fixed refractory brick masonry, and 12 to 15 days than the overall unshaped refractory castables pouring time.
2. Higher safety factor. “Zhenye” mixed iron furnace integrated masonry process for the smelting industry work characteristics, the manufacturer’s safe working environment again raised a grade, more conducive to daily inspection and maintenance, there are more convenient and effective alarm instructions and treatment methods, to avoid accidents have a more scientific basis and systematic measures to protect.
3. The comprehensive cost is lower and the comprehensive income is higher. Take 600T blending furnace as an example, the traditional brick blending furnace annual use cost (including daily maintenance fee) is about 1 million yuan, the overall casting blending furnace annual use cost (including daily maintenance fee) is about 850,000 yuan, “Zhenye” comprehensive masonry blending furnace annual use cost (including daily maintenance fee) is less than 600,000 yuan. million yuan.
4. Easy to patch repair, more economical investment, reduce the waste of resources. “Zhenye” blended iron furnace integrated masonry process for bricklaying and overall pouring requires continuous spraying patching, work intensity, resource consumption, the disadvantages of the original “blended iron furnace patching repair technology”, can eliminate the blended iron furnace daily frequent spraying patching, reduce the labor intensity of workers, with “Once a furnace service, once and for all; once a patching, a new furnace service”.

The mixed iron furnace patching repair:

Based on the actual operating conditions of integral fixed type resistant material and integral indeterminate type resistant material masonry (pouring) in iron and steel enterprises are unstable, short life span, high maintenance intensity factors, after many practices and improvements, especially adapted to the original lining for the integral fixed type / indeterminate type resistant material blended iron furnace.

This process is mainly for the blended iron furnace original lining life is short, local erosion is serious, furnace shell temperature is high, daily maintenance and other extraordinary furnace service; patching repair of the amount of resistant material according to the actual erosion of the furnace lining, the general amount of 80-150 tons, downtime generally takes about 16-20 days (excluding cooling time, including baking warming time), after repair, can be used for 10-12 months, during which no Spray patching, can be used according to the daily operation specifications.

At the same time, mixed iron furnace patch repair can be repeated, each patch repair, can make the furnace lining to restore a new, safety factor and the use of performance will gradually improve, will greatly reduce maintenance costs for enterprises, saving investment and saving resources.