Hot-blast stove insulating layer with stable structure

Abstract

The utility model discloses a hot blast stove thermal insulation layer with a stable structure, which comprises a thermal insulation layer, one side of the thermal insulation layer is connected with a mounting plate, the surface of the mounting plate is connected with an insertion plate, the thermal insulation layer comprises two groups of base plates and a high-temperature-resistant ceramic fiber module, a plurality of bumps are arranged between the two groups of base plates, and the bumps are respectively connected with the two groups of base plates. The high-temperature-resistant ceramic fiber module is arranged at the bottom of the base plate, the heat preservation layer is of a multi-layer composite structure made of different materials, the high-temperature-resistant ceramic fiber module has good flexibility and high temperature resistance, a stable inner layer foundation is provided for the heat preservation layer on the bottom layer, and the high-temperature mullite light plate has high strength and refractoriness. The overall structural strength of the heat preservation layer is enhanced, the metal sheet provides additional structural support for the whole heat preservation layer through the high strength of the metal sheet on the outermost layer, and therefore the performance of the heat preservation layer in different aspects is optimized under the action of all layers of materials, and the stability of the overall structure is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of thermal insulation layer, specifically relates to a structure stable hot blast furnace thermal insulation layer. BACKGROUND

[0002] In modern industrial production, hot blast furnace is indispensable key equipment of numerous industries, is widely used in steel smelting, chemical industry, ceramics, building materials and other fields, and its main function is to produce high temperature hot blast, provides required heat energy for various industrial production processes, however, the internal temperature of hot blast furnace is extremely high during operation, which makes it necessary to avoid a large amount of heat loss by laying thermal insulation layer for thermal insulation on the surface of hot blast furnace, so as to avoid causing great waste of energy.

[0003] The existing thermal insulation material in the thermal insulation layer of hot blast furnace is generally rock wool, aluminum silicate fiber felt and other commonly used thermal insulation materials, however, these thermal insulation materials will gradually shrink and deform with the increase of service time and long-term high temperature, the originally uniform structure in the thermal insulation materials is destroyed, gaps are generated, and the gaps become the channel for heat loss, the heat loss speed is accelerated, the thermal insulation effect is greatly reduced, and then the energy consumption is significantly increased. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a structure stable hot blast furnace thermal insulation layer to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a structure stable hot blast furnace thermal insulation layer, comprising:

[0006] The thermal insulation layer is connected with a mounting plate on one side, and the surface of the mounting plate is connected with a plug-in board, the other side of the thermal insulation layer is provided with a plug-in slot, and the plug-in boards on the surfaces of adjacent groups of thermal insulation layers are inserted into the plug-in slot.

[0007] The thermal insulation layer comprises a backing plate and a high-temperature ceramic fiber module, the backing plate is provided with two groups, and a plurality of protrusions arranged in an up-down arrangement are arranged between the two groups of backing plates, the plurality of protrusions are connected with the two groups of backing plates respectively, and the high-temperature ceramic fiber module is arranged at the bottom of the backing plate and used for providing a stable inner layer basis for the thermal insulation layer.

[0008] Preferably, high-temperature mullite light plates are arranged between the backing plate and the high-temperature ceramic fiber module.

[0009] Preferably, a nano aerogel felt is arranged at the top of the high-temperature mullite light plate.

[0010] Preferably, a high-temperature ceramic fiber blanket is arranged at the top of the backing plate.

[0011] Preferably, a metal sheet is arranged at the top of the high-temperature ceramic fiber blanket.

[0012] Preferably, the mounting plate surface is provided with a plurality of threaded holes, the thermal insulation layer surface is provided with a plurality of bolts, and the bolts are screwed with the threaded holes.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The adjacent thermal insulation layers are connected by inserting the insertion plates on one side of the mounting plate into the insertion slots on the other side, so that the two groups of thermal insulation layers are tightly connected mechanically, effectively preventing the relative displacement of the thermal insulation layers during use, and the insertion plate-insertion slot structure can maintain the integrity of the thermal insulation layers during the operation of the hot blast furnace, regardless of the internal airflow impact, equipment vibration or thermal expansion and contraction, thereby avoiding the problems such as loosening of the thermal insulation layers and greatly improving the stability of the thermal insulation layer structure.

[0015] (2) The thermal insulation layer adopts a multi-layer composite structure of different materials, the high-temperature ceramic fiber module has good flexibility and high-temperature resistance, can adapt to the thermal expansion and contraction deformation of the furnace body, provides a stable inner layer foundation for the thermal insulation layer, the high-temperature mullite light plate has high strength and fire resistance, enhances the overall structural strength of the thermal insulation layer, the nanometer aerogel felt has excellent thermal insulation performance and certain strength, helps to improve the heat insulation effect and overall stability of the thermal insulation layer, the metal sheet in the outermost layer not only protects the internal thermal insulation material from mechanical damage and external environmental erosion, but also provides additional structural support for the entire thermal insulation layer through its high strength, and due to the distribution of the protrusions, external stress can be more evenly dispersed in the structure composed of the gasket and the protrusions, so that under the action of each layer of material, the thermal insulation layer is optimized in different aspects, thereby improving the stability of the overall structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the utility model;

[0017] Fig. 2 It is a front view of the utility model;

[0018] Fig. 3 It is a sectional view of the utility model.

[0019] In the drawing: 1, thermal insulation layer; 2, mounting plate; 3, insertion plate; 4, insertion slot; 5, gasket; 6, high-temperature ceramic fiber module; 7, protrusion; 8, nanometer aerogel felt; 9, high-temperature ceramic fiber blanket; 10, metal sheet; 11, threaded hole; 12, bolt; 13, high-temperature mullite light plate. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] The utility model provides a structure stable heat -insulating layer of hot blast stove, including: Figs. 1-3 As shown in a kind of structure stable heat -insulating layer of hot blast stove, including:

[0022] Heat -insulating layer 1, the mounting plate 2 of heat -insulating layer 1 one side is connected with and the plugboard 3 of mounting plate 2 surface is connected with, the plug slot 4 in another side of heat -insulating layer 1 is equipped with, and the plugboard 3 of adjacent one group heat -insulating layer 1 surface is inserted into plug slot 4;

[0023] The heat -insulating layer 1 includes backing plate 5, high temperature resistant ceramic fiber module 6, the backing plate 5 is equipped with two groups and is equipped with several convex blocks 7 in the form of up and down arrangement between two groups of backing plate 5, several convex blocks 7 are connected with two groups of backing plate 5 respectively, the high temperature resistant ceramic fiber module 6 is equipped at the bottom of backing plate 5, for providing stable inner layer foundation for heat -insulating layer 1.

[0024] High temperature mullite light plate 13 is equipped between the backing plate 5 and high temperature resistant ceramic fiber module 6.

[0025] The high temperature mullite light plate 13 top is equipped with nano aerogel felt 8.

[0026] The backing plate 5 top is equipped with high temperature resistant ceramic fiber blanket 9, and the loose fiber structure and internal air pore of high temperature resistant ceramic fiber blanket 9 can disperse and slow down the conduction of heat.

[0027] The high temperature resistant ceramic fiber blanket 9 top is equipped with metal sheet 10, and the metal sheet 10 is stainless steel material, and the stainless steel material has higher strength and greater hardness, can increase the strength and anti-deformation capacity of the whole structure, to prevent heat -insulating layer 1 from being damaged by external force extrusion, collision.

[0028] The mounting plate 2 surface is equipped with several threaded holes 11, the heat -insulating layer 1 surface is equipped with several bolts 12, the bolt 12 is screwed with threaded hole 11, by screwing several bolts 12 and the threaded hole 11 of mounting plate 2 surface screwing, can form the close mechanical connection between two groups of heat -insulating layer 1.

[0029] The structure-stable hot blast stove heat preservation layer, when laying the heat preservation layer 1, adjacent heat preservation layers 1 are inserted into the insertion slot 4 on the other side through the insertion plate 3 on the one side mounting plate 2, and are fixed by screwing a plurality of bolts 12 with the threaded holes 11 on the surface of the mounting plate 2, so that the two groups of heat preservation layers 1 form a close mechanical connection.

[0030] When high temperature is generated in the hot blast stove, heat is first transmitted to the stove shell by heat conduction, in the heat preservation layer 1, the innermost high-temperature-resistant ceramic fiber module 6 begins to hinder the further conduction of heat due to its unique fiber structure and low thermal conductivity, the large number of air pores between the fibers slow down the heat transfer speed, and the high-temperature-resistant mullite light plate 13 above the high-temperature-resistant ceramic fiber module 6 further blocks the heat by virtue of its low thermal conductivity and good high-temperature resistance, the uniform structure and appropriate porosity of the high-temperature-resistant mullite light plate 13 make it an effective barrier to heat conduction, and the nanoscale pore structure of the nano-aerogel felt 8 hinders the heat conduction, so that the heat transfer rate in this layer is greatly reduced, and the outermost metal sheet 10 can protect the heat preservation layer 1;

[0031] When the heat preservation layer 1 is subjected to external force, stress is transmitted to the gasket plate 5 and the protruding block 7 through the heat preservation material, and due to the distribution of the protruding block 7, the stress can be more uniformly dispersed in the structure composed of the gasket plate 5 and the protruding block 7, so that the whole structure can withstand external force together, preventing the heat preservation layer 1 from being excessively deformed to cause cracking, delamination and other problems, and improving the overall structural stability of the heat preservation layer 1;

[0032] Moreover, the flexibility of the high-temperature-resistant ceramic fiber module 6 enables it to adapt to the deformation of the stove and the heat preservation layer 1, and will not crack or break due to its rigidity in the process of thermal expansion and cold contraction, thereby ensuring the stability of the inner layer of the heat preservation layer 1 and maintaining the stability of the overall structure.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement of some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A structurally sound hot blast stove insulation layer, characterized in that, Include: The heat preservation layer (1) is connected with the mounting plate (2) on one side, and the surface of the mounting plate (2) is connected with the plugboard (3). The other side of the heat preservation layer (1) is provided with a plug slot (4), and the plugboard (3) on the surface of an adjacent group of heat preservation layers (1) is inserted into the plug slot (4). The heat preservation layer (1) comprises a backing plate (5) and a high-temperature ceramic fiber module (6). The backing plate (5) is provided with two groups, and a plurality of protrusions (7) are arranged in an up-down arrangement between the two groups of backing plates (5). A plurality of protrusions (7) are respectively connected with the two groups of backing plates (5). The high-temperature ceramic fiber module (6) is arranged at the bottom of the backing plate (5), which is used to provide a stable inner layer foundation for the heat preservation layer (1).

2. A structurally sound hot blast stove insulation layer as claimed in claim 1, wherein: The high-temperature mullite light plate (13) is arranged between the backing plate (5) and the high-temperature ceramic fiber module (6).

3. A structurally sound hot blast stove insulation layer as claimed in claim 2, wherein: The top of the high-temperature mullite light plate (13) is provided with a nano aerogel felt (8).

4. A structurally sound hot blast stove insulation layer as claimed in claim 1, wherein: The top of the backing plate (5) is provided with a high-temperature ceramic fiber blanket (9).

5. A structurally sound hot blast stove insulation layer as claimed in claim 4, wherein: The top of the high-temperature ceramic fiber blanket (9) is provided with a metal sheet (10).

6. A structurally sound hot blast stove insulation layer as claimed in claim 1, wherein: The surface of the mounting plate (2) is provided with a plurality of threaded holes (11), and the surface of the heat preservation layer (1) is provided with a plurality of bolts (12). The bolts (12) are screwed with the threaded holes (11).

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