Method for reserving large-area refractory castable construction expansion gaps

A technology of refractory castables and expansion joints, which is applied in the field of setting expansion joints in industrial furnace construction. It can solve the problems that the expansion joints are difficult to leave evenly, straightly, and the position is correct and the size meets the design requirements. It achieves reasonable design and simple operation. Effect

Inactive Publication Date: 2014-01-15
MCC5 GROUP CORP SHANGHAI
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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 requi

Method used

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  • Method for reserving large-area refractory castable construction expansion gaps
  • Method for reserving large-area refractory castable construction expansion gaps

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Embodiment 1

[0023] figure 1 It is a structural schematic diagram of the bottom refractory material of the annular furnace according to the embodiment of the present invention. The heating temperature range of the high-temperature ring furnace is 1250-1280 ℃, the average furnace diameter is 48000mm, the furnace bottom and roof are 5400mm wide, and the furnace wall height is 2000mm. The object is a ceramic fiber blanket.

[0024] see now figure 2 , figure 2 It is a schematic diagram of the local arrangement and pouring sequence of the expansion joints of large-area refractory castables according to the embodiment of the present invention.

[0025] The large-area refractory castable construction expansion joint leaving method of the present invention is characterized in that comprising the following steps:

[0026] a. Describe the location and size of the refractory castable construction expansion joints in the working layer of the furnace according to the design drawings. The working ...

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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 ...

Claims

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Application Information

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IPC IPC(8): F27D1/16
Inventor 谭春华程爱民陈红武陈光中谢明洪徐铁权周亚丽吴恒袁杰平郭晓宇
Owner MCC5 GROUP CORP SHANGHAI
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