Method for reserving large-area refractory castable construction expansion gaps

Abstract

A method for reserving large-area refractory castable construction expansion gaps is characterized by comprising the following steps that a, the positions and the size of the refractory castable construction expansion gaps are depicted in an engraving mode in a working layer in a furnace according to a design drawing, and the thickness of the expansion gaps is 10mm; b, a plurality of pouring units are formed through division with the expansion gaps as boundaries on the peripheries; c, formworks are erected with the expansion gaps as the boundaries, the pouring sequence of the pouring units is planned, and one pouring unit is poured according to the pouring sequence by the adoption of a staggered pouring method; d, ceramic fiber blankets are used as filler for the refractory castable construction expansion gaps and processed in needed sizes, the thickness of the ceramic fiber blankets is 12.5mm, and the ceramic fiber blankets processed according to the sizes are wrapped with plastic films and then tightly attached to the boundaries of the poured pouring units; e, the follow-up pouring units are poured until the operation for reserving the refractory castable construction expansion gaps is finished. The method for reserving the large-area refractory castable construction expansion gaps has the advantages that the expansion gaps are even in arrangement, flat, accurate in position, the size of the expansion gaps meets design requirements, and the filler is packed tightly.

Description

technical field [0001] The invention relates to a method for setting expansion joints in industrial furnace construction, in particular to a method for setting expansion joints in large-area refractory castable construction. Background technique [0002] Refractory castables have the advantages of being able to be shaped arbitrarily, making the lining body with good integrity and long service life; at the same time, it has no joints, good air tightness, less heat loss, and can save energy. It is widely used in various industrial furnace linings. At present, industrial furnaces are developing in a large-scale direction, which brings about construction problems of large-area refractory castables. The quality of expansion joints is one of the keys to the construction quality of large-area refractory castables, which directly affects the quality of projects and the safety of equipment structures. , Performance. The expansion joints of the known refractory castable construction ...

AI Technical Summary

Problems solved by technology

The expansion joints of the known construction methods of refractory castables are difficult to achieve the requirements of uniformity, straightness, correct position, size meeting the design requirements and dense filling materials in the joints

[0003] Therefore, there are above-mentioned inconveniences and problems in the known refractory castable construction expansion joint setting method

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