INSTALLATION METHOD OF REFRACTORY FIBER INTEGRAL MODULE

Abstract

An installation method of a refractory fiber integral module, includes: carrying out construction pretreatment, then welding an anchoring part to a furnace wall, and then laying a tiled layer along the furnace wall; then fixing the refractory fiber integral module neatly on a hot surface of the tiled layer by the anchoring part to form a refractory fiber prefabricated layer, and filling reserved gaps between the refractory fiber integral modules with compensation strips; finally checking the refractory fiber prefabricated layer, and repairing gaps whose width is greater than a preset width.

Claims

1. An installation method of a refractory fiber integral module, comprising: carrying out construction pretreatment, and welding an anchoring part to a furnace wall after the pretreatment is completed; laying a tiled layer along the furnace wall, wherein the tiled layer comprises refractory fiber blankets and a nano plate; fixing the refractory fiber integral module neatly on a hot surface of the tiled layer by the anchoring part to form a refractory fiber prefabricated layer, and filling reserved gaps between the refractory fiber integral modules with compensation strips; and checking the refractory fiber prefabricated layer, and repairing gaps whose width is greater than a preset width.

2. The installation method according to claim 1, wherein the step of carrying out construction pretreatment comprises: erecting a scaffold in a furnace chamber, wherein a distance between the scaffold and the furnace wall is not greater than a first preset value; and derusting, after the scaffold is erected, the furnace wall to remove welding slag, floating dust, rust and oil stains on the furnace wall to weld the anchoring part.

3. The installation method according to claim 1, wherein the step of welding anchoring part to the furnace wall after the pretreatment is completed further comprises: checking welding quality of the anchoring part.

4. The installation method according to claim 1, wherein the step of laying a tiled layer along the furnace wall comprises: performing a water spray test on the furnace wall to determine whether weld seam is leaking, and if the weld seam leaks, performing repair welding; tensing one refractory fiber blanket from one end to another end, and then passing the tensed refractory fiber blanket through the anchoring part and fixing the refractory fiber blanket with a quick snapping piece; flattening the fixed refractory fiber blanket; repeatedly performing the action of tensing the refractory fiber blanket from one end to another end until a first tiled layer covering an inner side wall of the furnace wall is formed; tiling the nano plate from one end to another end, then passing the nano plate through the anchoring part and fixing the nano plate with the quick snapping piece, flattening the fixed nano plate; repeatedly performing the action of tensing the nano plate from one end to another end until a second tiled layer covering the first tiled layer is formed; tensing another refractory fiber blanket from one end to another end, and then passing the tensed refractory fiber blanket through the anchoring part and fixing the refractory fiber blanket with the quick snapping piece; flattening the fixed refractory fiber blanket until a third tiled layer covering the second tiled layer is formed; and wherein the tiled layer comprises at least two layers of the refractory fiber blankets and at least one layer of nano plate, seams of the two layers of refractory fiber blankets are staggered with each other, and a seam spacing is larger than a second preset value.

5. The installation method according to claim 1, wherein the step of checking the refractory fiber prefabricated layer, and repairing gaps whose width is greater than a preset width comprises: checking the refractory fiber prefabricated layer, and if there is a gap in the refractory fiber prefabricated layer, determining whether the gap is larger than the preset width; and if the gap is larger than the preset width, stuffing the refractory fiber blanket folded in half into the gap.

6. The installation method according to claim 4, wherein a range of the second preset value is greater than 50 mm.

7. The installation method according to claim 1, wherein the step of fixing the refractory fiber integral module neatly on a hot surface of the tiled layer by the anchoring part comprises: aligning a guide pipe of the refractory fiber integral module with the anchoring part, and sleeving the guide pipe on the anchoring part, and fixing the refractory fiber integral module by screwing a nut with the anchoring part.

8. The installation method according to claim 7, wherein the compensation strip is made by folding the refractory fiber blanket in half and compressing the refractory fiber blanket to a preset size.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0035] For more clearly illustrating embodiments of the present application or the technical solutions in the conventional technology, drawings to be used in the description of the embodiments or the conventional technology will be briefly described hereinafter. Apparently, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings may be obtained based on the provided drawings without any creative work.

[0036] FIG. 1 is a flow chart of an installation method of a refractory fiber integral module provided by the present application.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] Technical solutions of embodiments of the present application are clearly and completely described hereinafter in conjunction with the drawings of the embodiments of the present application. Apparently, the embodiments described in the following are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all of the other embodiments which are obtained by those skilled in the art without any creative work fall within the protection scope of the present application.

[0038] In order to provide the person skilled in the art with a better understanding of the solution of the present application, the present application is described hereinafter in further detail in conjunction with the drawings and embodiments.

[0039] Referring to FIG. 1, FIG. 1 is a flow chart of an installation method of a refractory fiber integral module provided by the present application.

[0040] The installation method of the refractory fiber integral module provided by the present application includes:

[0041] S1, carrying out construction pretreatment, and welding an anchoring part to a furnace wall after the pretreatment is completed;

[0042] Optionally, the construction staff first erects a scaffold in a furnace chamber, a distance between layers of the scaffold is generally 1.8 to 2.0 meters, and a distance between the scaffold and the furnace wall is not greater than the first preset value, and the first preset value may specifically be 0.5 meters. The user may also set the first preset value according to needs. A full-space springboard is laid between the scaffolds. The scaffold should be firm, safe and reliable. The scaffold should be dismantled from top to bottom, and it is strictly forbidden to operate up and down at the same time.

[0043] After the scaffold is erected, the furnace wall is derusted, construction stuff may manually remove rust with electric brushes and wire brushes to remove welding slag, floating dust, rust and oil stains on the furnace wall. After derusting, welding requirements for the anchoring part need to be met.

[0044] After the treatment is completed, the construction stuff marks the welding position of the anchoring part according to the specified distance in the construction drawings, and the deviation of the marking is required no to exceed ±1 mm. When welding, the anchoring part is vertically welded on the furnace wall where a welding spot is located. After welding, the welding quality is checked. Specifically, circumference of the bottom of the anchoring part should be fully welded without undercut. After hammering inspection, the anchoring part should make a clear and sonorous metallic sound.

[0045] S2, laying a tiled layer along the furnace wall, where the tiled layer includes refractory fiber blankets and a nano plate;

[0046] Optionally, before laying the tiled layer, it is necessary to perform a water spray test on the furnace wall to determine whether weld seam is leaking, and if it leaks, repair welding is carried out until the weld seam no longer leaks.

[0047] In the laying process, laying is started from one side of the furnace wall. Firstly, one refractory fiber blanket is tensed from one end to another end, and then the tensed refractory fiber blanket is passed through the anchoring part, the refractory fiber blanket fits with the outer periphery of the anchoring part under its own tension, then the refractory fiber blanket is fixed with a quick snapping piece, and then the fixed refractory fiber blanket is flattened. After laying of this one refractory fiber blanket is completed, the next refractory fiber blanket is then laid, and the seam between the blankets is tight, so as to avoid the formation of straight seam. Until the whole furnace wall is covered, a first tiled layer is formed.

[0048] After laying of the first tiled layer is completed, a second tiled layer is then laid. The second tiled layer is the nano plate. The nano plate is tiled from one end to another end, then the nano plate is passed through the anchoring part and is fixed with the quick snapping piece, and then the fixed nano plate is flattened. After laying of this nano plate is completed, the next refractory fiber blanket is then laid, and the seam between the plates is tight, so as to avoid the formation of straight seam. Until the whole furnace wall is covered, the second tiled layer located above the first tiled layer is formed.

[0049] Then, the third tiled layer is laid, and the third tiled layer adopts the refractory fiber blanket. For the specific laying steps, reference can be made to the first tiled layer, which will not be repeated here. After the laying is completed, a third tiled layer located above the second tiled layer is formed.

[0050] The tiled layer generally needs to lay at least two layers of refractory fiber blankets and one layer of nano plate. The user may also set the tiled layer with no less than four layers. For the specific laying process, reference can be made to the previous three tiled layers, which will not be repeated here. In addition, in order to avoid the formation of seams penetrating the tiled layer in the direction perpendicular to the furnace wall, the seams of the two layers of refractory fiber blankets are staggered with each other, and a seam spacing is greater than a second preset value. The range of the second preset value is greater than 50 mm. In three specific embodiments of this application, the second preset values are respectively selected as 100 mm, 150 mm and 180 mm. The user may also set the second preset value as required, which is not limited here.

[0051] S3, fixing the refractory fiber integral module neatly on a hot surface of the tiled layer by the anchoring part to form a refractory fiber prefabricated layer, and filling reserved gaps between the refractory fiber integral modules with compensation strips;

[0052] Optionally, when installing the refractory fiber integral modules, the refractory fiber integral modules are arranged in sequence on the hot surface of the tiled layer in a same phase. The hot surface refers to a side surface facing the inner side of the furnace, and the sequential arrangement in a same phase means that high-temperature-resistant side surfaces of all the refractory fiber integral modules are used as the hot surface and are arranged to face the inner side of the furnace. Before installation, installation positions of refractory fiber integral modules of different models and specifications should be clarified, and then construction should be started from one side of the furnace wall. Firstly, a guide pipe of the refractory fiber integral module is aligned with the anchoring part, and the guide pipe is sleeved on the anchoring part, the refractory fiber integral module is pushed along the anchoring part to fit with the tiled layer. Then the refractory fiber integral module is fixed by screwing a nut to the anchoring part with an Allen wrench.

[0053] After completing the installation of a row of refractory fiber integral modules, compensation strips need to be installed. The refractory fiber integral modules may shrink when heated, which may cause gaps in the lining. The compensation strip is made by folding the refractory fiber blanket in half and compressing the refractory fiber blanket to a preset size. The compensation strip is expandable to compensate for the size shrinkage of the refractory fiber integral module. After the installation of the compensation strips are completed, another row of refractory fiber integral modules are installed. The installation process is the same as the above steps.

[0054] S4, checking the refractory fiber prefabricated layer, and repairing gaps whose width is greater than a preset width.

[0055] Optionally, after the installation of the entire surface of the furnace wall is completed, it is necessary to check whether the layout of the refractory fiber integral modules meets the requirements. After the refractory fiber integral module is firmly installed, the guide pipe and other components are drawn out, and the expansion of the refractory fiber integral module itself may compensate for the gap left by the guide pipe. Then, the hot surface of the integral refractory fiber module is lightly pressed by a flat plate to flatten the surface of the refractory fiber prefabricated layer. Finally, the surface of the refractory fiber prefabricated layer is cleaned. After the surface of the refractory fiber prefabricated layer is cleaned, it is checked whether there is a gap in the refractory fiber prefabricated layer. If there is a gap in the refractory fiber prefabricated layer, it is determined whether the gap is larger than a preset width. The preset width may specifically be 5mm. The user may also set the preset width according to needs, which is not limited here. If the gap is greater than the preset width, the refractory fiber blanket folded in half is stuffed into the gap with a thin steel plate, thereby filling the gap.

[0056] According to the installation method of the refractory fiber integral module in this embodiment, firstly, the tiled layer is arranged on the inner side of the furnace wall, so as to ensure that the refractory fiber integral module can be neatly arranged on the inner side of the furnace wall, and to prevent the refractory fiber integral module from falling off. Compensation strips are installed between the refractory fiber integral modules, the refractory fiber blanket is filled in the gap of the refractory fiber prefabricated layer, and the refractory fiber integral module is supported on the compensation strip and the refractory fiber blanket, so as to avoid cracking of the refractory fiber integral module.

[0057] It should be noted that, terms such as first and second are merely used to distinguish an entity from other entities and do not require or imply that there are any such actual relationships or sequences between these entities herein.

[0058] The installation method of the refractory fiber integral module provided by the present application has been described in detail above. The principle and embodiments of the present application are described through specific examples herein. The description of the above-described embodiments is merely used to facilitate understanding of the method and core idea of the present application. It should be noted that, for those skilled in the art, many improvements and modifications may be further made to the present application without departing from the principle of the present application, and these improvements and modifications also fall within the protection scope of claims of the present application.