Refractory brick special for kiln outlets

Abstract

The invention relates to refractory bricks, in particular to a refractory brick special for kiln outlets. The refractory brick is characterized in that a brick body is provided with a fixing structure used for preventing the brick body sliding along a pipe axis, so that the brick body cannot slide along the axis of a pipe body due to gravity in the building process of the brick body even if when poured materials are not dried, convenience in operation of brick body building is achieved, and operation efficiency in brick body building is improved; in the process of concrete use of a refractory layer formed after brick body building and in case that the poured materials are dried, the brick body cannot slide along the axis of the pipe body in long-term use even if the dried poured materials are loosened due to the arrangement of the fixing structure on the brick body, and cracks do not occur in the refractory layer in the pipe body, so that quality stability of the refractory layer during the use is improved, and service life of equipment is prolonged.

Description

technical field [0001] The invention relates to refractory bricks, in particular to special refractory bricks for kiln mouths. Background technique [0002] High-temperature calcination is required in the cement production process. In order to prevent the calcination equipment from being damaged by high temperature, it is necessary to install refractory materials on the inner wall of the calcination equipment. In the specific production process, in order to completely discharge the materials in the calcination equipment, the outlet of the equipment is generally lower than the entrance of the equipment, that is, the calcination equipment is generally designed with an inclination. [0003] In the prior art, the refractory layer on the inner wall of the calcination equipment generally adopts the refractory castable type or the refractory brick masonry type. Due to the refractory layer made by the cast type, it needs to be recast after the refractory layer is damaged, which make...

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Problems solved by technology

[0003] In the prior art, the refractory layer on the inner wall of the calcination equipment generally adopts the refractory castable type or the refractory brick masonry type. Due to the refractory layer made by the cast type, it needs to be recast after the refractory layer is damaged, which makes the maintenance of the equipment inconvenient. At the same time Recasting the refractory layer will also cause waste of refractory materials, so this method has certain shortcomings during use, especially this method is not suitable for setting the refractory layer at the exit of the equipment, because the exit of the equipment is easy to be hit, so it is located at the exit of the equipment The refractory layer is more unsuitable to be made by pouring; the application number is the disclosed pellet rotary kiln kiln head structure and kiln tail structure in 200910075414, wherein the refractory layer at the kiln head is built with refractory bricks in the technical scheme, and at the same time , discloses a baffle structure that prevents materials in the kiln from scalding the kiln wall. Although the refractory brick disclosed in this patent has the advantages of high connection strength after masonry, and the refractory layer at the kiln mouth is not easily damaged after masonry, but in the specific use process, Due to the heavy weight of refractory bricks, the relatively large specific volume of cement production equipment, and the inclined installation of equipment, the refractory bricks built at the kiln mouth are easy to slide along the axis of the equipment during long-term use, thereby damaging the refractory layer on the inner wall of the equipment. Therefore, in the technical content disclosed by this patent, there is a deficiency that the refractory brick is fixed and unreliable

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