Method for constructing fiber blanket protective layer for furnace

Abstract

The invention provides a method for constructing a fiber blanket protective layer for a furnace. The method comprises the following steps of: welding a pulling rod on the inner wall of the furnace, pressing a fiber blanket on the furnace wall with the welded pulling rod; sleeving a sleeve in a hole drilled on a stainless steel plate, putting the stainless steel plate sleeved with the sleeve close to the welded pulling rod, and pressing the stainless steel plate into the furnace inner wall of the fiber blanket protective layer; sleeving the screw part of the pulling rod into the sleeve in the hole of the stainless steel plate; removing the sleeve, and screwing a nut on each screw exposed out of the hole of the stainless steel plate while removing each sleeve until sleeves on the whole stainless steel plate are removed; and uniformly adjusting the screwing degree of the nuts to compress the stainless steel plate until the fiber blanket meets the compactness requirement. The method has the advantages of simple construction, accurate positioning of the pulling rod, convenient adjustment of the compactness of the fiber blanket under the protective plate by adopting screw adjustment, and flat surface of the constructed protective plate without influencing the walking of a steel band in a hearth.

Description

technical field [0001] The invention relates to a construction method of a fiber blanket protective layer for kilns, which is applied to kilns for non-metal calcination, metal heat treatment and the like. Background technique [0002] In order to save energy and prolong the service life, furnaces and kilns usually need to be kept warm. There are many kinds of materials used for thermal insulation, including vermiculite, refractory bricks, fiber blankets, etc. Fiber blankets are widely used for thermal insulation because of their convenient construction, short construction period, good thermal insulation performance, and long service life. [0003] The insulation structure of the kiln fiber blanket is as follows: figure 1 shown. The tie rod 2 is vertically welded in the furnace wall 1, and the thermal insulation fiber blanket 3 is stacked on the inner wall of the furnace wall 1. After the fiber blanket 3 (material according to requirements) is used for thermal insulation, i...

AI Technical Summary

Problems solved by technology

Although the tie rod can be precisely positioned on the furnace wall, the relative position of the other end of the tie rod after being pressed into the fiber blanket cannot be guaranteed. It is not easy to align the holes on each tie rod

[0007] 2. Since the indentation of the tie rod needs to be tapped on the protection plate, and the holes are cut by gas cutting, the protection plate and the tie rod must be welded firmly at last. In this way, the protection plate is already seriously uneven, which affects the flatness of the kiln inner cavity

[0008] 3. The density of the fiber blanket under the entire protective board is difficult to adjust and uniform

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