CN219786034U

CN219786034U - Heat preservation device

Info

Publication number: CN219786034U
Application number: CN202321071872.8U
Authority: CN
Inventors: 李新宇; 尹海平; 史博文
Original assignee: Zhongzhong Technology Jiangsu Co ltd
Current assignee: Zhongzhong Technology Jiangsu Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-10-03
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a heat preservation device which comprises a panel, a guard board, a heat preservation layer and a connecting component, wherein the panel is covered on a bearing surface of a heat preservation area, the guard board is oppositely arranged on the inner side of the panel, the heat preservation layer is filled between the panel and the guard board, the connecting component comprises a nut and a bolt, the nut is arranged on the outer side of the panel, and the bolt sequentially penetrates through the guard board, the heat preservation layer and the panel and then is in threaded connection with the nut. The heat preservation device adopts a bolt connection mode that nuts are externally matched with a penetrating mode, so that the problem that a protective plate falls off due to failure of a welded junction in the original structure is solved, and the use reliability of the heat preservation device is improved; the split structure design of the guard plate ensures that each independent unit can be detachably connected, so that the guard plate is convenient to assemble, disassemble and maintain in the use process.

Description

Heat preservation device

Technical Field

The utility model relates to the technical field of steel production, in particular to a heat preservation device.

Background

The reversible rolling process of the plate and the strip is generally applied, and in the rolling process of the billet, as the extending length of the billet after rolling is increased, a longer conveying distance is needed, and the condition of temperature drop in the process can influence the subsequent rolling process. Therefore, a heat preservation device is arranged above the roller way to reduce the temperature drop in the transportation process.

The existing heat preservation device mainly comprises a protection plate layer, a heat preservation layer and a panel layer which are sequentially arranged from inside to outside, the protection plate layer is generally formed by processing a whole steel plate, nuts for connection are welded on the inner side of the protection plate layer, and the heat preservation layer and the protection plate layer are fixed through bolts. In the actual use process, the guard plate layer is baked at a high temperature for a long time to cause the guard plate layer to generate moulding deformation, so that a welded junction is invalid and falls off, the guard plate layer is caused to fall off locally, and the heat insulation effect is lost. In addition, the integral guard plate layer is difficult to install due to the body type problem, and is also unfavorable for maintenance operation in the use process.

Disclosure of Invention

The utility model aims to provide a heat preservation device, which aims to improve the fixing reliability of each part of a heat preservation structure and ensure the heat preservation effect.

The utility model adopts the following technical scheme:

a thermal insulation device, comprising:

the panel is covered on the bearing surface of the heat preservation area;

the guard board is oppositely arranged on the inner side of the panel;

the heat preservation layer is filled between the panel and the guard plate;

the connecting assembly comprises a nut and a bolt, wherein the nut is arranged on the outer side of the panel, and the bolt sequentially penetrates through the guard plate, the heat insulation layer and the panel and then is in threaded connection with the nut.

In an alternative scheme, the outside of panel is provided with the support, the support is provided with the lug along length direction's both ends each.

In an alternative, the panel is made of a thermally insulating material, or;

the inner side and/or the outer side of the panel is/are provided with a heat insulation layer.

In an alternative, the guard plate is formed by detachably connecting at least one end plate unit and at least one middle plate unit.

In an alternative scheme, the middle plate units and the end plate units are connected in a mutually overlapping mode, and adjacent middle plate units are connected in a mutually overlapping mode.

In an alternative scheme, one end of the end plate unit is provided with a flaring, and the other end of the end plate unit is provided with a first waist hole;

at least one end of the middle plate unit is provided with a second waist hole.

In an alternative, the heat resistant temperature of the guard plate is not less than 900 ℃.

In an alternative, the inner side of the guard plate is provided with a heat reflecting layer.

In an alternative scheme, a plurality of first holes are uniformly formed in the panel;

a plurality of second holes are uniformly formed in the guard plate;

the first holes are in one-to-one correspondence with the second holes, and the first holes are connected with the second holes through the connecting assembly.

In an alternative scheme, the bolt of at least part coupling assembling is hollow bolt, be provided with on the hollow bolt and point to the gas pocket of backplate inboard, hollow bolt is connected with the air supply.

In an alternative scheme, the heat preservation layer is a composite layer of one or more of a ceramic fiber felt layer, an aluminum silicate felt layer, an aluminum oxide layer, a silicon carbide fiber layer, an aerogel felt layer, a glass wool layer, a rock wool layer, an expanded perlite layer and a foaming cement layer.

Compared with the prior art, the utility model has the beneficial effects that at least:

1. the bolt connection mode that the nut is externally matched with the penetrating type is adopted, the problem that the guard plate falls off due to failure of a welded junction in the original structure is solved, and the use reliability of the heat preservation device is improved.

2. The split structure design of the guard plate ensures that each independent unit can be detachably connected, so that the guard plate is convenient to assemble, disassemble and maintain in the use process.

Drawings

Fig. 1 is a schematic structural view of a heat preservation device according to an embodiment of the present utility model.

Fig. 2 is a longitudinal sectional view of a thermal insulation device according to an embodiment of the present utility model.

Fig. 3 is a transverse cross-sectional view of a thermal insulation device according to an embodiment of the present utility model.

Fig. 4 is a schematic structural view of an end plate unit according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a middle board unit according to an embodiment of the present utility model.

FIG. 6 is a schematic diagram of a connection structure between a panel and a guard board according to an embodiment of the present utility model.

Fig. 7 is a schematic structural view of a hollow bolt according to an embodiment of the present utility model.

In the figure: 1. a panel; 11. a first hole; 2. a guard board; 21. an end plate unit; 211. flaring; 212. a first waist hole; 22. a middle plate unit; 221. a second waist hole; 23. a second hole; 3. a heat preservation layer; 4. a connection assembly; 41. a nut; 42. a bolt; 421. air holes; 5. a bracket; 6. lifting lugs.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted.

The words expressing the positions and directions described in the present utility model are described by taking the drawings as an example, but can be changed according to the needs, and all the changes are included in the protection scope of the present utility model.

Referring to fig. 1 to 6, the present utility model provides a thermal insulation device for thermal insulation of a high temperature member during transportation, the thermal insulation device comprising a panel 1, a guard plate 2, a thermal insulation layer 3 and a connection assembly 4.

Wherein, the panel 1 is covered on the bearing surface of the heat preservation area, and the panel 1 can be arranged in the roller way area in the rough rolling process of steel, and the shape of the panel 1 can be inverted U-shaped, inverted V-shaped or arched and the like. The panel 1 is used as the outermost layer of the heat preservation device, in order to avoid hidden danger to human body caused by high temperature, the panel 1 can be made of heat insulation materials, for example, the heat insulation materials can be silicate, polyurethane foam, glass fiber, asbestos and other heat insulation materials, or the panel 1 is not heat-insulated, but the inner side and/or the outer side of the panel 1 are provided with heat insulation layers, in some embodiments, the panel 1 can be processed by stainless steel plates, so that the panel 1 has good structural strength and service life, the outer side of the panel 1 is provided with heat insulation layers, the heat insulation layers are preferably polyurethane foam layers, and the thickness of the polyurethane foam layers is not less than 10mm, so as to avoid safety accidents caused by high temperature conduction.

The shape of the guard plate 2 is similar to that of the panel 1, and the guard plate 2 can also be in an inverted U shape, an inverted V shape or an arched shape, and the like, wherein the guard plate 2 is oppositely arranged on the inner side of the panel 1, and a gap between the guard plate 2 and the panel 1 forms an interlayer for installing the heat insulation layer 3. The protective plate 2 is used as the innermost layer of the heat-insulating device, and has good heat-resistant performance, and the heat-resistant temperature is not lower than 900 ℃, and as an example, the protective plate 2 can be made of high-temperature-resistant stainless steel plates so as to prevent carbonization failure in long-term heat radiation of high-temperature parts (such as steel billets). In addition, the guard board 2 is formed by detachably connecting at least one end plate unit 21 and at least one middle plate unit 22, and compared with the original integral guard board 2, the guard board 2 is designed to be of a split structure, and the independent units form the integral guard board 2 in a detachable connection mode, so that the guard board is convenient to assemble, disassemble and maintain in the use process.

The heat preservation layer 3 is filled between the panel 1 and the guard plate 2, two sides of the heat preservation layer are respectively clung to the panel 1 and the guard plate 2, and the heat-resistant temperature of the heat preservation layer 3 is above 900 ℃ so as to ensure that the heat preservation device has good heat preservation performance. The heat-insulating layer 3 can be a composite layer of one or more of a ceramic fiber felt layer, an aluminum silicate felt layer, an aluminum oxide layer, a silicon carbide fiber layer, an aerogel felt layer, a glass wool layer, a rock wool layer, an expanded perlite layer and a foaming cement layer. In some embodiments, the heat-insulating layer 3 is in the form of a similar folding surface so as to be installed in an inverted U-shaped, inverted V-shaped or arched interlayer, and further, a reinforcing frame (not shown) can be additionally arranged in the heat-insulating layer 3 to avoid deformation of the heat-insulating layer 3 and influence the subsequent heat-insulating effect.

The connecting assembly 4 comprises a nut 41 and a bolt 42, wherein the nut 41 and the bolt 42 are made of high-temperature resistant stainless steel materials so as to avoid thermal deformation damage caused by long-term heat radiation baking. The nut 41 is provided on the outside of the panel 1, and as an example, the nut 41 may be directly welded on the outside of the panel 1, or the nut 41 may be separated from the panel 1, which is screw-locked to the outside of the panel 1. Bolts 42 penetrate through the protection plate 2, the heat insulation layer 3 and the panel 1 in sequence and then are in threaded connection with nuts 41, the panel 1 and the protection plate 2 are of an inverted U-shaped structure, a plurality of first holes 11 are uniformly formed in the panel 1, the first holes 11 can be distributed on the top surface and two side surfaces of the panel 1 in an array mode, a plurality of second holes 23 are uniformly formed in the protection plate 2, the second holes 23 can be distributed on the top surface and two side surfaces of the protection plate 2 in an array mode, the first holes 11 correspond to the second holes 23 one by one, the first holes 11 are connected with the second holes 23 through connecting assemblies 4, namely, the bolts 42 penetrate through the second holes 23 and the first holes 11 in sequence and then are connected with the nuts 41, and therefore fixed installation of the protection plate 2, the heat insulation layer 3 and the panel 1 is achieved. Compared with the original fixing mode, the utility model connects the nuts 41 externally matched with the penetrating bolts 42, solves the problem of falling of the guard plate 2 caused by the failure of the welded junction in the original structure, and improves the reliability of the connecting structure.

Referring to fig. 6-7, in some embodiments, the bolts 42 are flat-top round head bolts, which are designed to prevent high temperature parts during transportation from colliding with the bolts 42, resulting in damage to the heads of the bolts 42 by shearing or scratching the high temperature parts.

With continued reference to fig. 1-2, in a specific embodiment, the outer side of the panel 1 is provided with a bracket 5, the shape of the bracket 5 is matched with the shape of the panel 1, and the bracket 5 is illustratively an inverted U-shaped structure, and is made of square tubes and the bracket 5 is welded and fixed with the panel 1 so as to strengthen the structure of the panel 1. In addition, the two ends of the bracket 5 along the length direction are respectively provided with a lifting lug 6, thereby facilitating the lifting operation of the heat preservation device,

referring to fig. 3 to 5, in one embodiment, the middle plate units 22 and the end plate units 21 are connected to each other in a stacked manner, and adjacent middle plate units 22 are connected to each other in a stacked manner, so as to ensure the structural integrity of the guard plate 2 after installation. Further, in order to improve the tightness between the adjacent units, graphite strips (not shown) can be installed at the overlapping positions of the middle plate unit 22 and the end plate unit 21 and the overlapping positions of the adjacent middle plate units 22 for sealing, and the graphite material has the characteristic of high temperature resistance, so that the tightness of the integral structure of the guard plate 2 can be well ensured, and the heat preservation effect is improved.

In some embodiments, a flaring 211 is disposed at one end of the end plate unit 21, and the flaring 211 increases the opening range of the heat insulation device, which is more beneficial for smooth in-out of the high-temperature part from the inner side of the protection plate 2. The other end of the end plate unit 21 is provided with a first waist hole 212, which first waist hole 212 is generally used in cooperation with the second hole 23 of the middle plate unit 22, by means of which first waist hole 212 the end plate unit 21 and/or the middle plate unit 22 can be fine-tuned in the conveying direction. Also, at least one end of the middle plate unit 22 is provided with a second waist hole 221, and the second waist hole 221 can be matched with the second hole 23 on the middle plate unit 22 or the end plate unit 21 for use, and also plays a role of fine adjustment, so that the assembly is convenient. As an example, the first waist hole 212 on the end plate unit 21 and the second hole 23 of the middle plate unit 22 may be connected by the connection assembly 4, and the bolt 42 passes through the first waist hole 212 on the end plate unit 21 and the second hole 23 of the middle plate unit 22 together and is connected with the nut 41 after passing through the corresponding first hole 11 on the panel 1. Similarly, the second hole 23 of one middle plate unit 22 and the second waist hole 221 of the other middle plate unit 22 may also be connected by the connection assembly 4, which is not described herein.

In a preferred embodiment, a heat reflecting layer (not shown) is disposed on the inner side of the protecting plate 2, for reflecting heat radiation, reducing heat dissipation and improving heat insulation effect, and the heat reflecting layer may be a chrome aluminum alloy layer or other high temperature resistant aluminum alloy layers.

Referring to fig. 6 to 7, at least part of the bolts 42 of the connecting assembly 4 are hollow bolts, the hollow bolts are uniformly and alternately arranged on the heat insulation device, air holes 421 pointing to the inner side of the guard plate 2 are formed in the hollow bolts, the hollow bolts are connected with an air source, the air source can be an air compressor, high-pressure air is output through the air holes 421, the inner side of the guard plate 2 can be cleaned, dust and foreign matters are prevented from being contaminated by high-temperature parts to affect the subsequent production quality, the heat reflection layer of the guard plate 2 can be cleaned, the cruising ability of the heat reflection layer is improved, and meanwhile, the intensity of manual labor is also reduced. Or, the air source can be other air supply equipment capable of outputting protective gas, for example, the air source outputs the protective gas such as argon, nitrogen and the like through the air holes 421, and the protective gas can be filled in the inner side area of the guard plate 2, so that the surface oxidation of a high-temperature part is avoided, the material waste is reduced, and the production quality of a product is improved.

While embodiments of the present utility model have been shown and described, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that changes, modifications, substitutions and alterations may be made therein by those of ordinary skill in the art without departing from the spirit and scope of the utility model, all such changes being within the scope of the appended claims.

Claims

1. A thermal insulation device, comprising:

a panel (1), wherein the panel (1) is covered on a bearing surface of the heat preservation area;

a guard board (2), wherein the guard board (2) is oppositely arranged on the inner side of the panel (1);

the heat insulation layer (3) is filled between the panel (1) and the guard board (2);

the connecting assembly (4), the connecting assembly (4) comprises a nut (41) and a bolt (42), the nut (41) is arranged on the outer side of the panel (1), and the bolt (42) sequentially penetrates through the guard plate (2), the heat-insulating layer (3) and the panel (1) and then is in threaded connection with the nut (41).

2. The heat preservation device according to claim 1, characterized in that a bracket (5) is arranged on the outer side of the panel (1), and lifting lugs (6) are respectively arranged at two ends of the bracket (5) along the length direction.

3. A thermal insulation device according to claim 1, characterized in that the panel (1) is made of a heat insulating material, or;

the inner side and/or the outer side of the panel (1) is/are provided with a heat insulation layer.

4. The insulation device according to claim 1, characterized in that the guard plate (2) is formed by detachably connecting at least one end plate unit (21) and at least one middle plate unit (22).

5. The heat preservation apparatus according to claim 4, wherein the middle plate units (22) and the end plate units (21) are connected to each other in a stacked manner, and adjacent middle plate units (22) are connected to each other in a stacked manner.

6. The heat preservation apparatus according to claim 5, characterized in that one end of the end plate unit (21) is provided with a flaring (211) and the other end is provided with a first waist hole (212);

at least one end of the middle plate unit (22) is provided with a second waist hole (221).

7. The insulation device according to claim 1, characterized in that the inner side of the guard plate (2) is provided with a heat reflecting layer.

8. The thermal insulation device according to claim 1, characterized in that the panel (1) is provided with a plurality of first holes (11) uniformly;

a plurality of second holes (23) are uniformly formed in the guard plate (2);

the first holes (11) are in one-to-one correspondence with the second holes (23), and the first holes (11) are connected with the second holes (23) through the connecting assembly (4).

9. The insulation device according to claim 8, characterized in that the bolts (42) of at least part of the connecting assembly (4) are hollow bolts, on which air holes (421) directed towards the inside of the guard plate (2) are provided, said hollow bolts being connected with an air source.

10. The heat preservation device according to claim 1, characterized in that the heat preservation layer (3) is a composite layer of one or more of a ceramic fiber felt layer, an aluminum silicate felt layer, an aluminum oxide layer, a silicon carbide fiber layer, an aerogel felt layer, a glass wool layer, a rock wool layer, an expanded perlite layer, and a foamed cement layer.