Heat preservation pit or burial pit as well as pouring material and process of working layer thereof

Abstract

The invention relates to a heat preservation pit or a burial pit as well as a pouring material and process of a working layer thereof. The pouring material is mainly formed by uniformly mixing aluminum-silicon synthesized raw materials, silicon micropowder, plate-shaped alundum powder, chemical low-temperature additive micropowder and chemical low-temperature binding agent micropowder. The pouring process mainly comprises the following steps of: fixing an anchoring brick on the inner wall of the heat preservation pit or the burial pit; supporting a template; uniformly stirring pouring materials positioned on the inner wall by utilizing a stirrer; and pouring the pouring materials into the template to form the working layer. The working layer of the heat preservation pit or the burial pit is formed through pouring according to the pouring process. The invention has the advantages of better heat preservation effect, higher stability, longer service life and simple and efficient construction process and is beneficial to saving the resources and the manpower.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a low-temperature, high-strength, anti-collision pouring material used for a heat preservation pit or a slow cooling pit for a steel billet and its inner lining and a pouring process thereof. Background technique [0002] The maximum service temperature of the billet heat preservation pit or slow cooling pit is 850°C. The inner wall of the structure is an anti-collision plate made of alloy cast steel, and refractory bricks are built behind the lining plate. The walls of the above-mentioned existing heat preservation pits or slow cooling pits are prone to collapse after being hit during use, and the service life is usually only about one year. Annual maintenance needs to replace 1 / 3 alloy cast steel plate, which consumes a lot of maintenance funds. [0003] It can be seen that the above-mentioned existing heat preservation pit or slow cooling pit for steel billet still has inc...

AI Technical Summary

Problems solved by technology

Annual maintenance needs to replace 1 / 3 alloy cast steel plate, which consumes a lot of maintenance funds

[0003] This shows that above-mentioned existing steel billet still has inconvenience and defective on structure and liner material with heat preservation pit or slow cooling pit, and urgently needs to be further improved

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