Construction method of kilneye castable

Abstract

The invention discloses a construction method of kiln mouth castable, which comprises the following steps of: 1) firstly cleaning a carcass, and then installing and checking the carcass, a brick blocking ring and back iron; (2) welding and expanding the anchoring part; (3) formwork erecting; (4) pouring; (5) maintenance, form removal and inspection are conducted; wherein in the step (4), the following conditions are met: expansion joints are reserved in the pouring process, and one expansion joint is arranged every 800mm in the annular direction; one line is arranged in the middle when the longitudinal length exceeds 1m; and waterproof measures are taken at the joints of the castable and the refractory bricks, and the kiln cannot be rotated within 12 hours after pouring is completed. According to the construction method of the kilneye castable, it can be guaranteed that the castable has the long service life, and large-area falling within a short time is avoided.

Description

technical field [0001] The invention relates to a rotary kiln, in particular to a construction method for a castable at a kiln mouth. Background technique [0002] The kiln mouth of the cement rotary kiln is severely corroded by clinker wear and high-temperature harmful gases, especially the kiln mouth guard iron used at the kiln mouth. At present, the kiln mouth is cast with castables. [0003] The traditional construction method of rotary kiln mouth castables is usually constructed sequentially during the process of rotating the rotary kiln, and the kiln mouth castables are poured at one time. During the construction process, ceramic fiber boards or ceramic fiber cotton are easily washed away by the castables , which leads to unreasonable setting of expansion joints and affects the service life; at the same time, during use, it is easy to cause a large area of ​​castable to fall off. Contents of the invention [0004] The object of the present invention is to provide a ...

AI Technical Summary

Problems solved by technology

[0003] The traditional construction method of the rotary kiln mouth pouring material is usually in the process of rotating the rotary kiln, and the construction is carried out sequentially, and the kiln mouth pouring material is poured at one time. During the construction process, the ceramic fiber board or ceramic fiber cotton is easily washed away by the castable material. , leading to unreasonable setting of expansion joints and affecting the service life; at the same time, during use, it is easy to cause a large area of ​​castable to fall off

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