Long life distribution chute

Abstract

The invention discloses a long life distribution chute which comprises a hexagonal chute head, a hexagonal chute body, wear-resisting liners, a lightweight refractory material, fasteners and other fittings. An abrasive material stocking plate is additionally arranged at a blanking point inside the chute and used for preventing the direct impact on the wear-resisting liners of material stream; thelightweight refractory material is coated on the outer surfaces of the middle section and the front section of the chute body, thereby reducing the weight of the chute and being capable of resisting the impact of high temperature central air flow in a furnace; and the wear-resisting liners at the side and bottom surface of the chute are movably connected by adopting concave and convex interlacingseals, thereby being capable of effectively absorbing the deformation of the wear-resisting liners. The long life distribution chute has the advantages of reasonable structure, light weight, impact abrasion resistance and long service life, and meets the requirement of blast furnace top distribution.

Description

A long-lived cloth chute technical field The invention belongs to the technical field of metallurgical machinery and discloses a long-life material distribution chute used on the top of a blast furnace. The device is used for the distribution and arrangement of the charge on the bellless top of the blast furnace. Background technique The top distribution chute of the blast furnace is the key equipment and wearing parts of the top of the blast furnace. It is required to be safe, reliable, low in investment and long in life. At the same time, the distribution chute is required to be light in weight due to the limited load capacity of the distribution device. The traditional semi-circular distribution chute has a semi-circular liner with a small cross-section and severe wear and tear. In order to prolong the service life of the liner, thicker hard alloy materials must be surfacing, which greatly increases the weight of the chute; In addition, since the semicircular liner is ...

AI Technical Summary

Problems solved by technology

The traditional semi-circular distribution chute has a semi-circular liner with a small cross-section and severe wear and tear. In order to prolong the service life of the liner, thicker hard alloy materials must be surfacing, which greatly increases the weight of the chute; In addition, since the semicircular liner is integrally fastened and installed in the chute body by bolts, its thermal deformation is not easily absorbed, often resulting in the shearing of the fastening bolts and damage to the liner, which seriously affects the service life of the distribution chute

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