Energy-saving rotary cement kiln inner liner and masonry process thereof

Abstract

An energy-saving cement rotary kiln inner liner and a masonry process thereof belong to the field of structures and constructions of rotary kiln inner liners. The energy-saving cement rotary kiln inner liner comprises a kiln body, wherein an inner liner layer is attached to the inner wall of the kiln body, the energy-saving cement rotary kiln inner liner is characterized in that the inner liner layer is formed by constructing prefabricated bricks and casting materials at intervals; each prefabricated brick comprises a working face body and a non-working face body, low heat conduction thermal insulating layers are respectively embedded into the non-working face bodies of the prefabricated bricks and the casting materials, and the low heat conduction thermal insulating layers inside the non-working face bodies and the low heat conduction thermal insulating layers in the casting materials are distributed in a staggered manner inside the kiln body. A rotary kiln prepared through the energy-saving cement rotary kiln inner liner provided by the invention is wear-resistant, energy-saving and durable, and also can prevent the occurrence of fire spurting, the thermal insulation performance is high, and the service life is long. The rotary kiln is more environment-friendly, does not cause pollution to the environment, and is convenient in masonry construction and high in quality.

Description

technical field [0001] The invention belongs to the field of structure and construction of a rotary kiln lining, and in particular relates to an energy-saving cement rotary kiln lining and a masonry process thereof. Background technique [0002] The rotary kiln is a commonly used thermal equipment in the cement production process. The structure, distribution and performance of refractory materials in the kiln greatly affect the service life of the kiln, the quality of cement products and production efficiency. The kiln body of a traditional rotary kiln is generally wrapped with a continuous insulation layer with equal diameters to prevent heat loss in the kiln. Once the insulation layer is ignited by the fire, it will be burned completely. The bricks will loosen and bricks will fall off, causing serious damage to the kiln body. [0003] The working environment of the firing zone of the rotary kiln is harsh, and its refractory materials must have good thermal shock stability...

AI Technical Summary

Problems solved by technology

However, the rotary kiln is in a rotating state during operation, and the stress between the inner linings and the collision of materials cause the refractory bricks to move vertically and horizontally, the gap between the construction joints becomes larger, the temperature of the kiln body rises, and in severe cases, the kiln body becomes red and burnt. The phenomenon of falling bricks in lottery, serious heat loss

Some manufacturers use unshaped refractory materials to solve this problem, but the effect is not ideal

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