A kind of masonry method of rotary kiln

Abstract

The invention relates to a building method of a rotary kiln. The key point of the technical scheme is as follows: the building method of the rotary kiln comprises the following steps: S1, placing a kiln body horizontally and welding a plurality of prefabricated rods to the inner wall of the kiln body; S2, mounting a reinforcing bar-mat reinforcement on the inner wall of the kiln body; S3, pouringconcrete to the reinforcing bar-mat reinforcement, paving refractory bricks, inserting the prefabricated rods into positioning holes during paving, adopting a subsectional paving mode during paving, wherein the range of pouring concrete and paving the refractory bricks is a 30-60-degree central angle of the kiln body, and rotating the kiln body after paving the refractory bricks every time, wherein the rotating angle is a central angle corresponding to a range with the refractory bricks on the inner wall of the kiln body; S4, putting an air bag on the inner wall of the kiln body, wherein the length of the air bag is consistent to that of the axial direction of the kiln body, and filling the air bag with gas in a maintenance period, wherein the air bag leans against the surfaces of the refractory bricks; and S5, carrying out natural curing on the inner wall of the kiln body, wherein an effect of improving the using stability of the refractory bricks is achieved.

Description

technical field [0001] The invention relates to the technical field of a rotary kiln, in particular to a method for building a rotary kiln. Background technique [0002] The rotary kiln consists of a hollow cylindrical kiln body. A refractory layer is required to be built on the inner wall of the kiln body to protect the kiln body. The refractory layer is generally composed of prefabricated bricks or refractory bricks, and can also be used as a refractory working layer. . [0003] The existing masonry method of the refractory layer is as follows: firstly, the kiln body is placed horizontally on the axis, and then a layer of concrete is poured on the inner wall below the center surface of the kiln body, and then refractory bricks are directly laid on the poured concrete. After hardening, turn the kiln body to rotate the kiln body by 180 degrees, so that the inside of the kiln body with refractory bricks is turned to be located above the center surface of the kiln body, and c...

AI Technical Summary

Problems solved by technology

[0004] However, if the refractory brick is directly bonded to the inner wall of the kiln body through concrete, at high temperature, the material will impact the refractory brick, and the prefabricated brick will impact the poured concrete. After a long time of work, the refractory brick and the inner wall of the kiln body are prone to loosening , resulting in poor stability of refractory bricks

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