Ceramic fiber combined packing block for packing water beam of steel rolling heating furnace and packing method

Abstract

The invention relates to a ceramic fiber combined packing block for packing a water beam of a steel rolling heating furnace and a packing method. The ceramic fiber combined packing block comprises more than one group of packing blocks surrounded on the periphery of the water beam of the heating furnace, the water beam of the heating furnace comprises a water pipe at the furnace bottom of the heating furnace and a sliding block, the ceramic fiber combined packing block is characterized in that each group of the packing blocks comprise a hard ceramic fiber water beam packing block A and a hard ceramic fiber water beam packing block B which are processed and molded by hard ceramic fiber and are symmetrically meshed and connected, the inner sides of the packing blocks are in close contact with the sliding block and the outer wall of the water pipe at the furnace bottom of the heating furnace, fastener mounting holes are formed at the upper parts and lower parts of the hard ceramic fiber water beam packing blocks A and B, fasteners are respectively assembled in the upper and lower fastener connecting holes of the hard ceramic fiber water beam packing blocks A and B for combining and assembling the hard ceramic fiber water beam packing blocks A and B into one group of the hard ceramic fiber combined water beam packing blocks, and all groups of the hard ceramic fiber combined water beam packing blocks are tightly connected and packed on the outer side of the water beam of the heating furnace according to the length of the water beam of the heating furnace.

Description

technical field [0001] The invention belongs to the technical field of heat insulation and heat preservation of water pipes at the bottom of a heating furnace, and in particular relates to a ceramic fiber binding block and a wrapping method for wrapping a water beam of a steel rolling heating furnace. Background technique [0002] The heating furnace water beam in the steel rolling furnace is an important part to support the billet movement. The heating furnace water beam is composed of a heating furnace bottom water pipe and a slider. The heating furnace bottom water pipe is divided into a single water pipe structure and a double water pipe structure. , the upper assembly of the slider (also known as pads). In order to ensure the structural strength of the water beam support in high temperature environment, the water beam is cooled by circulating water. For the purpose of energy saving, most of them currently use vaporization cooling technology. The outside of the water be...

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Problems solved by technology

[0011] Chinese patent ZL 200610039212.6 discloses a method of wrapping water beams by using polycrystalline mullite fibers to make two wrapping blocks, hanging them on anchor nails, and pasting them on water pipes with high-temperature glue. Heat insulation and protection, but because the technology at that time was limited to making polycrystalline mullite fibers into cotton-like or soft blocks, the strength was poor and it was not resistant to erosion, and because high-temperature glue was applied to the inside of the wrapping block during the bonding process Connecting with the water beam, because the high-temperature glue cannot penetrate or adhere to the metal pipe wall and the expansion and contraction of the metal pipe wall, high-temperature glue, and polycrystalline mullite dressing block are greatly different at different temperatures, so the high-temperature glue cannot be realized. Fix the dressing block on the water pipe for a long time, and eventually the polycrystalline mullite dressing block will gradually wash and peel off or directly separate from the water pipe and fall off from the anchor nail

Therefore, it cannot work stably, and it is not suitable for long-term use in the water beam of the heating furnace, which makes it unable to be popularized and applied.

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