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Anchors are mostly used as fixtures for integral linings (castable, plastic and sprayable linings). Refractory brick linings also use anchors, but they are not used in many occasions. Metal Anchors are usually used to support and fix thin or heat-insulating integral linings, such as chimney linings, wear-resistant linings of petrochemical catalytic cracking reactors (usually tortoise shell mesh anchors), integral jet metallurgy The lining of the spray gun, the overall lining of the immersion pipe of the DH and RH vacuum degassing devices, the lining of the rotary kiln discharge day, the feeding port, etc. Metal anchors are mostly used to fix linings with a long-term use temperature below 1200 °C, or short-term use temperature above 1200 °C that can be used intermittently.

One of the problems in kiln lining construction is that the structure of Refractory Anchors is not enough. The loose requirements on the geometric angle and radian of Anchor are beneficial to manufacturing and production, but will cause losses during use. Thermal equipment castables and anchors will undergo stress release, expansion and contraction under high temperature and normal temperature changes during operation. If the geometric angle and curvature of the Metal Anchors deviate greatly, the stress relief, expansion and contraction will be different. This difference will lead to premature cracking, loosening and falling off of the refractory castable, and finally cause the red shell phenomenon of thermal equipment. Therefore, the strict requirement for the shape of Refractory Anchors In Furnace is a major issue related to the service life of refractory castables.