Prefabricated part of portable hot rolling heating furnace stand column

Abstract

The utility model discloses a prefabricated part of a portable hot rolling heating furnace stand column, which belongs to the technical field of slab hot rolling production, and is characterized in that a plurality of prefabricated parts are arranged outside a heat insulation layer, and under the combined action of positioning holes, anchor bolts, nuts and side edges, the heat insulation layer is fixed on the heat insulation layer; the prefabricated parts are detachably and fixedly installed on the water beam and the heat insulation layer so as to play a certain protection role on the water beam and the heat insulation layer, meanwhile, under the design effect, local maintenance of the water beam and the heat insulation layer is facilitated, only the anchor bolts need to be detached, operation is easy and convenient, the maintenance time is greatly shortened, and the maintenance efficiency is improved. The continuity and the stability of a plate blank production line are ensured; under the action of the multiple prefabricated parts, the effect of local and modular maintenance of the water beam is achieved, when a certain prefabricated part needs to be maintained or replaced, due to independence of the prefabricated part, the prefabricated part can be rapidly disassembled and replaced, the downtime of a production line is shortened, and therefore the production efficiency is kept to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of hot rolling production of slabs, in particular to a prefabricated component of a convenient hot rolling heating furnace column. Background Art

[0002] The slab heating furnace is the focus of energy consumption in the hot rolling process, accounting for about 70% of the energy consumption. For water beams and columns using vaporization cooling, water cooling heat loss accounts for 10% to 12% of the energy consumption of the heating furnace, which accounts for a considerable proportion of energy consumption. The existing water beam insulation solution adopts a double-layer coating structure of ceramic fiber blanket and refractory castable. Specifically, the inner layer uses a 20mm thick refractory fiber blanket, and the outer layer is a 50mm thick refractory castable. However, this structure usually has a service life of 2 to 3 years under the complex working conditions of the heating furnace, and local repairs are often required.

[0003] Although traditional insulation methods can prevent heat from being transferred to the water beam and maintain the appropriate temperature of the cooling water, the double-layer coating structure of the ceramic fiber blanket and refractory castable is easily corroded and damaged due to the harsh working environment of the heating furnace, such as high temperature, high pressure and mechanical wear. The installation and replacement process of this traditional insulation structure is often cumbersome and requires downtime, which not only increases the additional labor cost, but may also cause production interruptions, affecting the continuity and stability of the overall production line. Utility Model Content

[0004] The purpose of the utility model is to provide a prefabricated component of a portable hot rolling heating furnace column, which can effectively protect the thermal insulation structure, avoid the thermal insulation structure from being easily corroded and damaged in the harsh working environment of the heating furnace such as high temperature, high pressure and mechanical wear, and at the same time, it can also facilitate the replacement of the thermal insulation structure or the local maintenance of the water beam, and ensure the continuity and stability of the slab production line.

[0005] In order to solve the above technical problems, the utility model adopts a technical solution:

[0006] A prefabricated component of a portable hot rolling heating furnace column, comprising:

[0007] Prefab, set to multiple;

[0008] A water beam is provided in the prefabricated parts, and the prefabricated parts are arranged in sequence along the height direction of the water beam;

[0009] A heat insulation layer is provided between the prefabricated member and the water beam;

[0010] The prefabricated part is provided with a plurality of positioning holes, and anchor bolts are arranged in the positioning holes. One end of the anchor bolt passes through the insulation layer and the water beam in sequence, and a nut is sleeved on the other end of the anchor bolt. The prefabricated part is also provided with a plurality of side edges.

[0011] According to some embodiments, there is a gap between the two preforms, and the spacing of the gap is 2 mm to 5 mm.

[0012] According to some embodiments, the gap is filled with a filling coating.

[0013] According to some embodiments, the number of the positioning holes is consistent with the number of the side edges.

[0014] According to some embodiments, the number of the positioning holes and the side edges is 2 to 3.

[0015] According to some embodiments, the side edges are arranged at an inclined angle, and the spacing between the side edges is 2 mm to 5 mm.

[0016] According to some embodiments, the thermal insulation layer is made of ceramic fiber blanket.

[0017] Beneficial effects:

[0018] 1. By arranging multiple prefabricated parts on the outside of the insulation layer, and under the action of the positioning holes, anchor bolts, nuts and sides, the multiple prefabricated parts can be detachably fixed on the water beam and the insulation layer, so as to provide a certain degree of protection for the water beam and the insulation layer. At the same time, under such a design, it is also convenient to carry out local repairs on the water beam and the insulation layer, that is, only the anchor bolts need to be removed, which is easy to operate and greatly shortens the maintenance time. It avoids the insulation structure from being easily corroded and damaged in the harsh working environment of the heating furnace such as high temperature, high pressure and mechanical wear, and ensures the continuity and stability of the slab production line.

[0019] 2. Through the use of multiple prefabricated parts, the water beam can be repaired in a localized and modular manner. When a prefabricated part needs to be repaired or replaced, it can be quickly disassembled and replaced due to its independence, reducing the downtime of the production line, thereby maintaining production efficiency to the greatest extent. Local repair avoids the need for large-scale replacement of parts, reduces material waste, and saves costs.

[0020] Additional aspects and advantages of the utility model will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0022] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0023] Figure 2 for Figure 1 A cross-sectional view at AA is shown in FIG.

[0024] In the figure, 1 is prefabricated part, 2 is water beam, 3 is insulation layer, 4 is side, 5 is anchor bolt, 6 is nut, 7 is positioning hole, and 8 is gap. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Combination Figure 1 and Figure 2 As shown, a prefabricated component of a portable hot rolling heating furnace column includes a prefabricated part 1, a water beam 2, an insulation layer 3, a side 4, an anchor bolt 5, a nut 6 and a positioning hole 7.

[0030] There are multiple prefabricated parts 1; the water beam 2 is arranged in the prefabricated part 1, and the prefabricated parts 1 are arranged in sequence along the height direction of the water beam 2; the thermal insulation layer 3 is arranged between the prefabricated part 1 and the water beam 2; a plurality of positioning holes 7 are opened on the prefabricated part 1, and anchor bolts 5 are arranged in the positioning holes 7, one end of the anchor bolt 5 passes through the thermal insulation layer 3 and the water beam 2 in sequence, and the other end of the anchor bolt 5 is sleeved with a nut 6, and a plurality of side edges 4 are also opened on the prefabricated part 1.

[0031] Among them, by arranging a plurality of prefabricated parts 1 on the outside of the insulation layer 3, and under the action of the positioning holes 7, the anchor bolts 5, the nuts 6 and the side 4, the plurality of prefabricated parts 1 can be detachably fixed on the water beam 2 and the insulation layer 3, so as to provide a certain protection for the water beam 2 and the insulation layer 3. At the same time, under the action of such a design, it is also convenient to carry out local maintenance of the water beam 2 and the insulation layer 3, that is, only the anchor bolts 5 need to be removed, which is easy to operate and greatly shortens the maintenance time, avoids the insulation structure from being easily corroded and damaged in the harsh working environment such as the high temperature, high pressure and mechanical wear of the heating furnace, and ensures the continuity and stability of the slab production line; by using the action of the plurality of prefabricated parts 1, the effect of localized and modular maintenance of the water beam 2 is achieved, so that when a prefabricated part 1 needs to be repaired or replaced, due to its independence, it can be quickly disassembled and replaced, reducing the downtime of the production line, thereby maintaining production efficiency to the greatest extent, and local maintenance avoids the need for large-scale replacement of parts, reduces material waste and saves costs.

[0032] To further explain, there is a gap 8 between the two prefabricated parts 1, and the spacing of the gap 8 is 2mm to 5mm, so that under the action of the gap 8, a refractory plastic can be filled in the gap 8. The refractory plastic is a material with good thermal insulation properties. Filling the gap 8 can further improve the thermal insulation effect of the overall structure, reduce heat transfer to the prefabricated parts 1 or other parts, and protect the water beam 2 and other components from overheating. At the same time, it also achieves the effect of localized and modular maintenance of the water beam 2. Therefore, the design of the gap 8 of 2mm to 5mm can not only meet the functional requirements, but also will not be too large to cause structural instability or reduced thermal insulation effect.

[0033] To further explain, the gap 8 is filled with a filling coating, and the filling coating is a refractory plastic. Due to its excellent thermal insulation performance, the refractory plastic can effectively prevent heat from being transferred from one prefabricated part 1 to another, or to the water beam 2 and other components, and prevent overheating from causing damage to these components. Despite the existence of the gap 8, due to the filling of the refractory plastic, it can increase the stability of the connection to a certain extent, prevent the overall structural instability caused by the excessive gap, and also make the surface between the two adjacent prefabricated parts 1 look smooth.

[0034] Further explanation, the number of the positioning holes 7 is consistent with the number of the side edges 4, and the positioning holes 7 on each prefabricated component 1 are used in conjunction with the side edges 4 to ensure that the prefabricated components 1 are accurately aligned during installation. In this way, the anchor bolts 5 can be inserted through the positioning holes 7, and the side edges 4 can be used as installation references to ensure that the positional relationship between the prefabricated components 1 is correct and prevent installation misalignment.

[0035] To further explain, the number of the positioning holes 7 and the side edges 4 is 2 to 3, and 2 to 3 positioning holes 7 and the side edges 4 can provide sufficient fixing points to ensure that the prefabricated component 1 is stably installed on the water beam 2 and the insulation layer 3, while avoiding material waste caused by too many fixing points.

[0036] Further explanation, the side 4 is set at an inclined angle, and the spacing of the side 4 is 2mm to 5mm. The spacing of 2mm to 5mm allows the prefabricated part to have a certain degree of freedom when it expands and contracts with heat, avoiding the damage of the prefabricated part 1 caused by thermal deformation. The inclined side 4 can be assembled more conveniently, especially in a limited space, which is convenient for the alignment and fixation of the prefabricated part 1. However, after the installation of the anchor bolt 5 is completed, it is necessary to apply fire mud to the side 4. The fire mud can form a sealing layer. After the fire mud dries, it forms a solid bonding layer, which can strengthen the connection between the prefabricated part 1 and the thermal insulation layer 3, increase the overall stability of the structure, and prevent the prefabricated part from being damaged due to movement during thermal expansion and contraction. The fire mud can prevent moisture or other liquids from entering the prefabricated part 1, thereby protecting the water beam 2 and the thermal insulation layer 3 inside the prefabricated part 1 from corrosion.

[0037] Further explanation: the thermal insulation layer 3 is made of ceramic fiber blanket, which has extremely low thermal conductivity, can effectively prevent the transfer of heat, reduce the temperature of the internal structure, and protect the water beam 2 and other components from high temperature. The ceramic fiber material itself has high temperature resistance and can maintain its thermal insulation performance in high temperature environment, and can adapt to various high temperature working environments. Compared with other thermal insulation materials, the ceramic fiber blanket is light in weight, has good mechanical strength and chemical corrosion resistance, and can provide long-term and stable thermal insulation protection.

[0038] In some embodiments, the thermal insulation layer 3 may also be made of mineral wool, aerogel, polyurethane foam, silica aerogel composite material, aluminum foil thermal insulation material, aluminum silicate fiber and the like.

[0039] Mineral wool: Mineral wool such as asbestos, glass wool or rock wool is also a commonly used insulation material. It has good thermal insulation performance, and is also sound-absorbing, fire-resistant and corrosion-resistant.

[0040] Aerogel: Aerogel is a nanoporous material with extremely low thermal conductivity. It is one of the best thermal insulation materials currently available and is particularly suitable for situations where extremely high thermal insulation effects are required.

[0041] Polyurethane foam: Polyurethane foam has good thermal insulation properties and structural stability, as well as certain compressive resistance. It is often used for thermal insulation of buildings and industrial equipment.

[0042] Silica aerogel composite material: This material combines the ultra-low thermal conductivity of silica aerogel with the mechanical strength of reinforced materials, ensuring both thermal insulation and improving the durability of the material.

[0043] Aluminum foil insulation material: It is made of aluminum foil and other insulation materials such as foam, bubble film, etc. It has the ability to reflect heat and is suitable for occasions where radiant heat needs to be blocked.

[0044] Aluminum silicate fiber: Aluminum silicate fiber has good high temperature resistance and thermal insulation effect, and is also resistant to chemical corrosion, making it suitable for high temperature environments.

[0045] The installation method of the utility model is as follows:

[0046] First, wrap the insulation layer 3 on the water beam 2 by cutting and gluing to ensure that the insulation layer 3 fits tightly to the water beam 2. Next, arrange the prefabricated parts 1 in sequence along the height direction of the water beam 2, and the positioning hole 7 of each prefabricated part 1 corresponds to the position of the insulation layer 3. Then, pass the anchor bolt 5 through the positioning hole 7 and the insulation layer 3 on the prefabricated part 1, and insert it into the water beam 2, and then put on the nut 6 and tighten it, so that the prefabricated part 1 is firmly fixed between the insulation layer 3 and the water beam 2. The side edge 4 serves as an installation aid to ensure the correct alignment and positioning of the prefabricated part 1. In the adjacent gaps 8 of the prefabricated parts 1, fill the refractory plastic as a filling coating to enhance the insulation effect and structural stability, and to ensure the flatness of the surfaces of the corresponding two prefabricated parts 1. After the installation is completed, apply fire mud to the side edge 4, and after the fire mud dries, a solid sealing layer is formed to increase the overall stability of the structure.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A prefabricated component of a portable hot rolling heating furnace column, characterized in that: include: A prefabricated part (1), provided in a plurality; A water beam (2) is arranged in the prefabricated component (1), and the prefabricated components (1) are arranged in sequence along the height direction of the water beam (2); A heat insulation layer (3) is provided between the prefabricated component (1) and the water beam (2); The prefabricated component (1) is provided with a plurality of positioning holes (7), each of which is provided with an anchor bolt (5), one end of which passes through the thermal insulation layer (3) and the water beam (2) in sequence, and the other end of which is sleeved with a nut (6), and the prefabricated component (1) is also provided with a plurality of side edges (4).

2. The prefabricated component of a portable hot rolling heating furnace column according to claim 1, characterized in that: There is a gap (8) between the two preforms (1), and the spacing of the gap (8) is 2 mm to 5 mm.

3. The prefabricated component of a portable hot rolling heating furnace column according to claim 2, characterized in that: The gap (8) is filled with a filling coating.

4. The prefabricated component of a portable hot rolling heating furnace column according to claim 1, characterized in that: The number of the positioning holes (7) is consistent with the number of the side edges (4).

5. The prefabricated component of a portable hot rolling heating furnace column according to claim 4, characterized in that: The number of the positioning holes (7) and the side edges (4) is 2 to 3.

6. The prefabricated component of a portable hot rolling heating furnace column according to claim 1 or 5, characterized in that: The side edges (4) are arranged at an inclined angle, and the spacing between the side edges (4) is 2 mm to 5 mm.

7. The prefabricated component of a portable hot rolling heating furnace column according to claim 1, characterized in that: The heat insulation layer (3) is made of ceramic fiber blanket.

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