Annealing furnace wall, hearth and annealing furnace

Abstract

The present disclosure relates to the technical field of plate rolling, and particularly relates to an annealing furnace wall. The present disclosure provides an annealing furnace wall, comprising: a wall body and a mounting beam, the wall body is connected with the mounting beam, wherein the mounting beam comprises a first connecting end and a second connecting end, one of the first connecting end and the second connecting end is used for movably connecting to an inner wall of a furnace chamber, and the other is used for fixedly connecting to the inner wall of the furnace chamber. Through implementation of the technical scheme of the present disclosure, the furnace wall is designed with a fixed end and a free end, so that the furnace wall can expand after being heated, and deformation of the furnace wall is prevented.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of plate rolling, and particularly relates to an annealing furnace wall. BACKGROUND

[0002] With the increasingly fierce competition in the steel market, customers' standards for products are gradually improved. Only by continuously enriching their own product structure, improving product quality and increasing product added value can steel enterprises stand firm in the market. The 1700 galvanized annealing furnace area is divided into a preheating section, a heating section, a soaking section, a cold spraying section and an outlet section. The heating section and the soaking section are in one furnace, and when producing a new product, the atmosphere requirements of the strip steel in different heating areas are different. The strip steel surface can only meet the requirements under such conditions. The original design of the furnace cannot meet the requirements, and it is necessary to add a furnace wall in the furnace of the heating section and the soaking section to redivide the area into multiple furnace spaces. SUMMARY

[0003] The present disclosure aims to at least solve one of the technical problems existing in the prior art or related art.

[0004] To this end, one aspect of the present disclosure provides an annealing furnace wall, comprising: a wall body and a mounting beam, the wall body is connected with the mounting beam, wherein the mounting beam comprises a first connecting end and a second connecting end, one of the first connecting end and the second connecting end is used for movably connecting to the inner wall of the furnace, and the other is used for fixedly connecting to the inner wall of the furnace.

[0005] In a feasible implementation, it further comprises:

[0006] a mounting seat for connecting with the inner wall of the furnace, the first connecting end and the second connecting end correspondingly have one mounting seat;

[0007] wherein, one of the first connecting end and the second connecting end is fixedly connected to the corresponding mounting seat, and the other abuts against the corresponding mounting seat.

[0008] In a feasible implementation, the mounting beam is arranged on one side of the wall body, and the first connecting end and the second connecting end are exposed from the wall body.

[0009] In a feasible implementation, the wall body comprises a first lining plate and a second lining plate, and a heat preservation plate is arranged between the first lining plate and the second lining plate.

[0010] In a feasible implementation, an accommodation space is formed inside the second lining plate, the first lining plate is arranged in the accommodation space, and the accommodation space is divided into a first accommodation cavity and a second accommodation cavity, and the first accommodation cavity and the second accommodation cavity are both provided with the heat preservation plate.

[0011] In an implementation, the wall body is provided with a positioning member for limiting the relative positions of the outer lining, the inner lining and the insulation board.

[0012] In a second aspect of the present disclosure, an annealing furnace hearth is provided, comprising:

[0013] a hearth body forming a hearth space;

[0014] a plurality of annealing furnace walls as described above, arranged in the hearth space, one of the first connecting end and the second connecting end being movably connected to the inner wall of the hearth body, and the other being fixedly connected to the inner wall of the hearth body;

[0015] wherein the plurality of annealing furnace walls are connected in sequence to form a furnace wall group, the furnace wall group being used to define at least two chambers in the hearth space.

[0016] In an implementation, the hearth space has a heating section, and the furnace wall group is arranged in the heating section to define a first heating chamber and a second heating chamber.

[0017] In an implementation, two adjacent annealing furnace walls in the furnace wall group are movably connected.

[0018] In a third aspect of the present disclosure, an annealing furnace is provided, comprising the annealing furnace hearth as described above.

[0019] Compared with the prior art, the present disclosure has at least the following beneficial effects: the present disclosure is provided with a mounting cross beam on the wall body and connected to the hearth, the mounting cross beam comprises a first connecting end and a second connecting end, one of the first connecting end and the second connecting end is used to be movably connected to the inner wall of the hearth so that the wall body has a certain degree of movement after preheating and expansion in use, thereby avoiding deformation of the wall body, and the other is used to be fixedly connected to the inner wall of the hearth to limit the relative position of the wall body. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the detailed description of the exemplary embodiments below. The drawings are for purposes of illustration only and are not intended to limit the application thereto. Moreover, in the drawings, the same reference numerals are used to designate the same components throughout the several views. The drawings are as follows:

[0023] Fig. 1 A front view structural schematic diagram of a furnace wall of the present disclosure;

[0024] Fig. 2 A side view structural schematic diagram of a furnace wall of the present disclosure;

[0025] Fig. 3 A structural schematic diagram of a furnace wall of the present disclosure in a furnace installation position.

[0026] wherein, Figs. 1 to 3 The correspondence between the reference signs and the component names in the accompanying drawings is as follows: 1 - wall body; 2 - installation beam; 3 - first connecting end; 4 - second connecting end; 5 - first lining plate; 6 - second lining plate; 8 - positioning member; 9 - mounting seat; 10 - first accommodating cavity; 11 - second accommodating cavity; 100 - furnace wall group. DETAILED DESCRIPTION

[0027] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present disclosure, the schemes of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other manners different from those described herein; obviously, the embodiments described in the specification are only a part of the embodiments of the present disclosure, and not all the embodiments.

[0029] With the increasingly fierce competition in the steel market, customers' standards for products are gradually increasing. Only by continuously enriching their own product structure, improving product quality, and increasing product added value can steel enterprises stand firm in the market. The 1700 galvanizing annealing furnace area is divided into a preheating section, a heating section, a soaking section, a cold spraying section, and an outlet section. Among them, the heating section and the soaking section are in one furnace, and when producing a new product steel, the atmosphere requirements of the strip steel in different heating areas are different. Only under such conditions can the strip steel surface meet the requirements. The original furnace design cannot meet the requirements, and it is necessary to add furnace walls in the heating section and the soaking section furnace to redivide the area into multiple furnace spaces.

[0030] Based on this, the disclosure provides an annealing furnace wall, a mounting beam is arranged on the wall body and connected with the furnace chamber, the mounting beam comprises a first connecting end and a second connecting end, one of the first connecting end and the second connecting end is used for movably connecting the inner wall of the furnace chamber so that the wall body has a certain movement degree after preheating expansion in use, and the deformation of the wall body is avoided, and the other is used for fixedly connecting the inner wall of the furnace chamber to limit the relative position of the wall body.

[0031] The annealing furnace wall is described in detail below through specific embodiments:

[0032] Referring to Figs. 1 to 3 The disclosure provides an annealing furnace wall, comprising a wall body 1 and a mounting beam 2, the wall body 1 is connected with the mounting beam 2, the mounting beam 2 comprises a first connecting end 3 and a second connecting end 4, one of the first connecting end 3 and the second connecting end 4 is used for movably connecting the inner wall of the furnace chamber, and the other is used for fixedly connecting the inner wall of the furnace chamber.

[0033] The disclosure provides an annealing furnace wall, comprising a wall body 1 and a mounting beam 2, the wall body 1 is connected with the mounting beam 2, the mounting beam 2 comprises a first connecting end 3 and a second connecting end 4, one of the first connecting end 3 and the second connecting end 4 is used for movably connecting the inner wall of the furnace chamber, and the other is used for fixedly connecting the inner wall of the furnace chamber.

[0034] In some embodiments, a mounting seat 9 is further included, the mounting seat 9 is used for connecting with the inner wall of the furnace chamber, the first connecting end 3 and the second connecting end 4 respectively correspond to one mounting seat 9, one of the first connecting end 3 and the second connecting end 4 is fixedly connected with the corresponding mounting seat 9, and the other abuts against the corresponding mounting seat 9. The mounting seat 9 of the fixedly connected end is provided with a fixed pin, and the connecting end of the mounting beam 2 is provided with a positioning hole matched with the fixed pin, so as to form the fixed connection. Further, the end of the mounting beam 2 movably connected with the mounting seat 9 can be provided with a guide groove, the guide groove is arranged on the surface of the end of the mounting beam 2 movably connected with the mounting seat 9, the guide of the guide groove is consistent with the extension direction of the mounting beam 2, and a guide block is fixedly arranged on the mounting seat 9, the guide block can slide in the guide groove, so as to limit the expansion direction of the wall body 1 under heat.

[0035] In some embodiments, the mounting beam 2 is arranged on one side of the wall body 1, and the first connecting end 3 and the second connecting end 4 are exposed from the wall body 1.

[0036] It can be understood that the mounting beam 2 of the present disclosure will also be heated and expanded in the hearth. In order to avoid the displacement of the wall body 1 caused by the thermal expansion of the mounting beam 2, the mounting beam 2 of the present disclosure is arranged on one side of the wall body 1, and can be arranged on the side close to the edge. Different from being directly connected and fixed with the side of the wall body 1, the mounting beam 2 of the present disclosure is arranged in the wall body 1 and gap-fitted with the wall body 1, so that the mounting beam 2 does not pull the wall body 1 after thermal expansion, further reducing the deformation degree of the wall body 1.

[0037] In some embodiments, as shown in Fig. 2 The wall body 1 of the present disclosure includes a first lining plate 5 and a second lining plate 6, and a heat preservation plate is arranged between the first lining plate 5 and the second lining plate 6. The problem of thermal influence between the multiple sub-hearth defined by the wall body 1 in the hearth is avoided.

[0038] In some embodiments, a containing space is formed in the second lining plate 6, the first lining plate 5 is arranged in the containing space, and the containing space is divided into a first containing cavity 10 and a second containing cavity 11, and the first containing cavity 10 and the second containing cavity 11 are both provided with a heat preservation plate.

[0039] In this embodiment, the second lining plate 6 is arranged around the first lining plate 5 and wraps the first lining plate 5, wherein the first lining plate 5 serves as a partition plate and defines the first containing cavity 10 and the second containing cavity 11 in the second lining plate 6, and the first containing cavity 10 and the second containing cavity 11 are both provided with a heat preservation plate. That is, the first lining plate 5, the second lining plate 6 and the heat preservation plate form a double-layer sandwich structure, which further increases the heat insulation effect and reduces the temperature control difficulty between the multiple hearths defined by the wall body 1.

[0040] In some embodiments, the wall body 1 is provided with a positioning member 8 for limiting the relative positions of the outer lining 6, the inner lining 5 and the heat preservation plate. The positioning member 8 of the present disclosure can be selected from bolts, buckles and the like, and the present disclosure specifically selects a bolt for fixing. Specifically, the fixing member 8 is arranged at the two sides and the middle position of the wall body 1, and multiple fixing members 8 are arranged from top to bottom to strengthen the fixing effect.

[0041] In a second aspect of the present disclosure, an annealing furnace hearth is provided, which comprises:

[0042] A hearth body is formed with a hearth space;

[0043] A plurality of the above-mentioned annealing furnace walls are arranged in the hearth space, one of the first connecting end 3 and the second connecting end 4 is movably connected to the inner wall of the hearth body, and the other is fixedly connected to the inner wall of the hearth body. The plurality of annealing furnace walls are connected in sequence to form a furnace wall group 100, and the furnace wall group 100 is used to define at least two chambers in the hearth space.

[0044] The furnace wall group 100 is added in the hearth, and specifically, the position can be directly below the double rectification rollers. The furnace wall group 100 can maximize the distance between the furnace wall and the strip steel, and can avoid the secondary problems caused by the foreign matter falling from the furnace wall into the space between the strip steel and the furnace roller. Specifically, each furnace wall group 100 can be composed of 10 furnace walls from top to bottom. The connection between the upper and lower furnace walls of the furnace wall group 100 can be plug-in to prevent the upper and lower furnace walls from being connected. When the furnace wall is installed, the heat preservation and inner lining plate on both sides of the position of the newly added furnace wall group 100 need to be completely removed. Since the furnace roller blocks the upper and lower furnace rollers, a hole needs to be opened in the position of the rectification roller below the furnace wall. The newly added furnace wall is sent into the furnace from the hole. At the same time, an angle scaffold is set up in the furnace to install the furnace wall from bottom to top. After the furnace wall is installed, it is necessary to check whether the lining plate in the position of the support is firmly installed. After the hole of the furnace wall is restored, airtightness test needs to be carried out. After the newly added furnace wall runs for one furnace inspection period, the outer lining plate and the fastening screw need to be checked to prevent deformation and falling.

[0045] In some embodiments, the hearth space of the present disclosure has a heating section, and the furnace wall group 100 is arranged in the heating section to define a first heating chamber and a second heating chamber.

[0046] In this embodiment, the furnace wall group 100 is added to divide the furnace section into two relatively independent areas. By defining the heating section as a first heating chamber and a second heating chamber, the atmosphere in the furnace is independently controlled to improve the surface quality of the strip steel when producing high-grade products. Further, the furnace also includes a soaking section, and the furnace walls of the first heating chamber, the second heating chamber, and the soaking section form a three-chamber structure.

[0047] In some embodiments, two adjacent annealing furnace walls in the furnace wall group 100 are movably connected to avoid deformation caused by the force of the pressure in the furnace.

[0048] In a third aspect of the present disclosure, an annealing furnace is provided, and the annealing furnace has the above-mentioned hearth.

[0049] In the present disclosure, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0050] In the description of the disclosure, it needs to be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the disclosure and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the disclosure.

[0051] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above is only the preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An annealing furnace wall, characterized in that The wall body is connected with the mounting beam, wherein, The mounting beam comprises a first connecting end and a second connecting end, one of the first connecting end and the second connecting end is used for movably connecting with the inner wall of the hearth, and the other is used for fixedly connecting with the inner wall of the hearth. The mounting beam is arranged in the gap of one side of the wall body and the wall body, and the first connecting end and the second connecting end are exposed from the wall body.

2. The annealing furnace wall of claim 1, wherein Further comprising: Mounting seats are used for connecting with the inner wall of the hearth, and the first connecting end and the second connecting end each correspond to one mounting seat; One of the first connecting end and the second connecting end is fixedly connected with the corresponding mounting seat, and the other abuts against the corresponding mounting seat.

3. The annealing furnace wall of claim 1, wherein The wall body comprises a first lining plate and a second lining plate, and a heat preservation plate is arranged between the first lining plate and the second lining plate.

4. The annealing furnace wall of claim 3, wherein The second lining plate forms an accommodation space inside, the first lining plate is arranged in the accommodation space, and the accommodation space is divided into a first accommodation cavity and a second accommodation cavity, and the first accommodation cavity and the second accommodation cavity each are provided with the heat preservation plate.

5. The annealing furnace wall of claim 3, wherein The wall body is provided with a positioning member, and the positioning member is used for limiting the relative positions of the second lining plate, the first lining plate and the heat preservation plate.

6. An annealing furnace hearth, characterized by The hearth body forms a hearth space; A plurality of annealing furnace walls according to any one of claims 1 to 5 are arranged in the hearth space, one of the first connecting end and the second connecting end is movably connected with the inner wall of the hearth body, and the other is fixedly connected with the inner wall of the hearth body; The plurality of annealing furnace walls are sequentially connected to form a furnace wall group, and the furnace wall group is used for defining the hearth space into at least two chambers. The hearth space has a heating section, and the furnace wall group is arranged in the heating section to define the heating section into a first heating chamber and a second heating chamber.

7. The annealing furnace hearth of claim 6, wherein, Two adjacent annealing furnace walls in the furnace wall group are movably connected.

8. The annealing furnace hearth of claim 6, wherein, The annealing furnace comprises the annealing furnace wall according to any one of claims 6 to 8.

9. An annealing furnace, characterized by ​

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