Heat preservation pit
By setting buffers and insulation layers at the bottom of the billet bracket of the insulation pit, the problems of uneven bearing and poor insulation effect of the existing insulation pit bracket are solved, and more stable and efficient billet insulation is achieved, and service life is extended.
Patent Information
- Application Number
- CN202411859656.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-02-07
AI Technical Summary
When stacking steel billets in existing insulation pits, due to uneven bearings of the brackets, the insulation effect is poor, and the bottom insulation layer is overloaded, which has a short service life.
An insulation pit including a pit body body, a billet bracket, an intermediate insulation structure, a first connecting frame and a buffer base are designed. By providing a buffer and insulation layer at the bottom end of the billet bracket, the stability and insulation effect of the bracket are enhanced, and the burden on the bottom insulation layer is reduced.
Through the setting of the buffer and insulation layer, the contact area between the support frame and the bottom insulation structure is expanded, heat conduction is reduced, cracks caused by excessive bottom temperature are avoided, the service life of the insulation pit is extended, and the insulation effect is improved.
Smart Images
Figure CN119392993A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of iron and steel metallurgical material storage, and in particular to a heat preservation pit. Background Art
[0002] As an important part of the steel production process, the insulation pit is a buffer link between the continuous casting workshop and the rolling workshop. The existing insulation pit uses an internal insulation layer and an external insulation cover to keep the steel billet warm.
[0003] However, when stacking steel billets in the current insulation pit, the number of steel billets that can be stored in one insulation pit is limited due to the need to consider the bearing capacity of the bracket and the insulation layer. In addition, when the steel billets are stacked on the steel billet rack, the bottom of the steel billet rack directly acts on the insulation layer at the bottom of the insulation pit, which puts a heavy burden on the bottom insulation layer, resulting in poor insulation effect. Summary of the invention
[0004] The present invention is made to solve the above-mentioned technical problems, and its purpose is to provide an insulation pit, which can enhance the strength and stability of the billet support while ensuring the service life of the insulation pit by arranging a buffer part at the bottom of the connecting frame and the billet rack.
[0005] In order to achieve the above-mentioned objectives, the present invention provides an insulation pit, comprising: a pit body, comprising a bottom insulation structure, a side wall insulation structure and a reinforced concrete structure; a plurality of steel billet supports, installed in the pit body, comprising a base frame and at least two support frames, the support frames are fixedly connected to the base frame; an intermediate insulation structure, arranged between two adjacent steel billet supports; a first connecting frame, passing through the intermediate insulation structure and connected to the support frame; a buffer base, arranged at the bottom end of the support frame, comprising a buffer and an insulation layer, the buffer is fixedly connected to the support frame, and the insulation layer is arranged around the buffer.
[0006] Preferably, a plurality of the buffer members are arranged in parallel, connecting members are provided between the plurality of the buffer members, and the buffer members and the connecting members are connected by welding.
[0007] Preferably, the bottom insulation structure and the side wall insulation structure are composed of a clay brick layer, an insulation brick layer, a ceramic fiber layer and a refractory material layer in sequence, and the middle insulation structure is composed of a clay brick layer, wherein the refractory material layer is connected to the pit body.
[0008] Preferably, the intermediate heat-insulating structure comprises a through hole for the first connecting frame to pass through, and a diameter of the through hole is greater than a width of the first connecting frame.
[0009] Preferably, it also includes a heat-insulating cover covering the pit body.
[0010] Preferably, it also includes a top insulation layer, which is installed on the side of the insulation cover facing the pit body and is arranged above the pit body.
[0011] Preferably, the steel billet support further comprises a second connecting frame, which is arranged parallel to the first connecting frame and installed on the top of the support frame; and the top insulation layer abuts against the second connecting frame.
[0012] Preferably, the top insulation layer consists of a refractory mud layer and the insulation material layer.
[0013] Preferably, the pit body further comprises fixed brackets arranged at both ends of the pit body, and the fixed brackets are connected to the steel billet brackets at the end; the fixed brackets, the base frame and the support frame jointly support the steel billet.
[0014] Preferably, it also includes an anti-collision bracket, which is installed on the side wall of the fixed bracket and fixedly connected to the first connecting frame.
[0015] According to the above description and practice, the insulation pit described in the present invention includes a pit body, a plurality of steel billet supports, an intermediate insulation structure, a first connecting frame and a buffer base. The pit body includes a bottom insulation structure, a side wall insulation structure and a reinforced concrete structure, which together insulate the pit body. The reinforced concrete structure supports the entire pit body to prevent the pit body from collapsing. The steel billet supports are installed in the pit body, including a base frame and at least two support frames. The base frame is fixedly connected to the support frame to further ensure the stability of the steel billet support by the entire steel billet support. The intermediate insulation structure is arranged between two adjacent steel billet supports. The first connecting frame passes through the intermediate insulation structure and is connected to the support frame to connect the two adjacent steel billet supports together, thereby ensuring the stability of the connection between the multiple steel billet supports inside the insulation pit. The buffer base is arranged at the bottom end of the support frame, including a buffer part and a thermal insulation layer. The buffer part is fixedly connected to the support frame, and the thermal insulation layer is arranged around the buffer part. Through the arrangement of the buffer base, on the one hand, the contact area between the support frame and the bottom thermal insulation structure is enlarged, and the effect of the support frame and the bottom thermal insulation structure is reduced; on the other hand, the buffer part bears a part of the force of the steel billet, so that the effect transmitted to the bottom thermal insulation structure is weakened, and the thermal insulation layer is used to thermally isolate the steel billet from the bottom thermal insulation structure, thereby ensuring that the insulation pit with the buffer base can store steel billets with higher temperatures, avoiding excessive temperature at the bottom of the insulation pit to cause cracks, and affecting the insulation effect of the entire insulation pit. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the insulation pit involved in one embodiment of the present invention.
[0017] Figure 2It is a schematic structural diagram of a steel billet support of a heat preservation pit involved in one embodiment of the present invention.
[0018] Figure 3 It is a schematic structural diagram of a buffer base of a heat preservation pit in one embodiment of the present invention. DETAILED DESCRIPTION
[0019] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0020] In addition, the accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, so their repeated description will be omitted. It should be noted that in the present invention, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", etc. are only used as marks, not to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.
[0021] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] The present invention discloses a heat preservation pit, please refer to Figures 1 to 3The insulation pit includes a pit body 1, a steel billet support 2, an intermediate insulation structure 13, a first connecting frame 22 and a buffer base 3. The pit body 1 includes a bottom insulation structure 11, a side wall insulation structure 12 and a reinforced concrete structure 14, which together insulate the pit body 1, wherein the reinforced concrete structure 14 supports the entire pit body 1 to prevent the pit body from collapsing. The steel billet support 2 is installed in the pit body 1, including a base frame 21 and at least two support frames 23, and the base frame 21 is fixedly connected to the support frame 23, further ensuring the stability of the steel billet support by the entire steel billet support 2. The intermediate insulation structure 13 is arranged between two adjacent steel billet supports, and the first connecting frame 22 passes through the intermediate insulation structure 13 and is connected to the support frame 23, connecting the two adjacent steel billet supports 2 together, thereby ensuring the stability of the connection between the multiple steel billet supports 2 inside the insulation pit. The buffer base 3 is arranged at the bottom end of the support frame 23, and includes a buffer member 31 and an insulation layer 32. The buffer member 31 is fixedly connected to the support frame 23, and the insulation layer 32 is arranged around the buffer member 31. Through the arrangement of the buffer base 3, on the one hand, the contact area between the support frame 23 and the bottom insulation structure 11 is enlarged, and the effect of the action between the support frame 23 and the bottom insulation structure 11 is reduced; on the other hand, the buffer member 31 bears a part of the force of the steel billet, so that the effect transmitted to the bottom insulation structure 11 is weakened, and the steel billet and the bottom insulation structure 11 are thermally isolated by the insulation layer 32, ensuring that the insulation pit with the buffer base 3 can store steel billets with higher temperatures, avoiding excessively high temperature at the bottom of the insulation pit to cause cracks, affecting the insulation effect of the entire insulation pit.
[0023] It can be understood that in some embodiments, a plurality of buffers 31 are arranged in parallel. By dispersing a plurality of buffers 31, the weight of the steel billet is evenly dispersed and transferred to the bottom insulation structure 11. Connectors (not shown) are arranged between the plurality of buffers 31. The buffers 31 and the connectors are welded to ensure the stability of the connection between the buffers 31, and to avoid damage to the buffer base 3 when the weight of the steel billet is large, thereby affecting the service life of the entire steel billet support 2 and the buffer base 3. In addition, since an insulation layer 32 is also arranged around the plurality of buffers 31, the heat of the steel billet is transferred from the insulation layer 32 and the buffer 31 to the bottom insulation structure 11 respectively. At this time, the heat of the steel billet is transferred to the bottom insulation structure 11 in a linear manner, so that the heat of the high-temperature steel billet is transferred to the bottom of the insulation pit at a minimum, further ensuring the protective effect of the buffer base 3 on the bottom insulation structure 11.
[0024] In order to ensure the insulation effect of the entire insulation pit, in some embodiments, the bottom insulation structure 11 and the side wall insulation structure 12 are composed of a clay brick layer, an insulation brick layer, a ceramic fiber layer and a refractory material layer in sequence, wherein the refractory material layer is connected to the pit body 1, and the middle insulation structure 13 is composed of a clay brick layer. The clay brick layer and the insulation brick layer have certain strength and load-bearing capacity, and also have good fire resistance and thermal insulation properties. As the first layer of insulation material, they can better withstand the heat shock in the insulation pit and slow down heat conduction. The refractory material layer and the ceramic fiber layer have excellent insulation performance and high temperature stability. As the second layer of insulation material, they can effectively prevent heat conduction and reduce heat loss.
[0025] Furthermore, in order to ensure that the first connecting frame 22 is fixedly connected to the support frames 23 on both sides of the side wall insulation structure 12 to ensure the stability of the entire steel billet bracket 2, in some embodiments, the intermediate insulation structure 13 includes a through hole for the first connecting frame 22 to pass through, and the first connecting frame 22 passes through the through hole to be connected to the support frames 23 on both sides. Moreover, since the material of the steel billet bracket 2 is usually a metal part, some metal materials will expand in a high temperature environment, thereby causing the first connecting frame 22 to deform. The diameter of the through hole is greater than the width of the first connecting frame 22, and a certain space is reserved for the first connecting frame 22 to prevent the first connecting frame 22 from squeezing the side wall insulation structure 12 after deformation, which will seriously affect the insulation effect of the entire insulation pit.
[0026] It can be understood that in order to improve the insulation effect of the entire insulation pit, in some embodiments, the insulation pit also includes an insulation cover 4, which covers the pit body 1. When there is no need to put in or take out the steel billet, the insulation cover 4 is covered on the pit body 1 to achieve closed insulation for the entire insulation pit and reduce heat loss in the insulation pit.
[0027] Furthermore, the insulation pit also includes a top insulation layer 5, which is installed on the side of the insulation cover 4 facing the pit body 1 and is arranged above the pit body 1. The top insulation layer 5 is a low-cement prefabricated part, which can directly bear the weight of the insulation cover 4 and extend the service life of other insulation materials.
[0028] Furthermore, in order to avoid causing greater pressure on the support frame 23 when the insulation cover 4 and the top insulation layer 5 are arranged together, thereby causing damage to the support frame 23, in some embodiments, the billet support 2 also includes a second connecting frame 24, and the second connecting frame 24 is arranged parallel to the first connecting frame 22 and installed on the top of the support frame 23, and the top insulation layer 5 abuts against the second connecting frame 24 to support the insulation cover 4 and / or the top insulation layer 5, and disperse the force of the insulation cover 4 and / or the top insulation layer 5 on the support frame 23, thereby ensuring the service life of the entire support frame 23.
[0029] It can be understood that the top insulation layer 5 is composed of a refractory mud layer and an insulation material layer. On the one hand, it can withstand the high temperature impact brought by the steel billets in the insulation pit, and on the other hand, it can withstand the weight of the insulation cover 4 above, thereby extending the service life of the entire insulation pit.
[0030] It can be understood that in order to ensure the firmness and stability of the entire insulation pit, in some embodiments, the pit body 1 further includes fixed brackets 25 disposed at both ends of the pit body 1, and the fixed brackets 25 are connected to the billet brackets 2 at the ends. The fixed brackets 25, the base frame 21, and the support frame 23 jointly support the billet, and by providing the fixed brackets 25, the billet is supported at the edge of the pit body 1 to prevent the billet from colliding with the billet bracket 2 when being placed in the insulation pit, resulting in instability of the billet bracket 2 in the insulation pit, thereby affecting the storage of the billet in the insulation pit.
[0031] Furthermore, in some embodiments, the insulation pit also includes an anti-collision bracket 6, which is installed on the side wall of the fixed bracket 25 and fixedly connected to the first connecting frame, further connecting the entire billet bracket 2 with the pit body 1 as a whole, thereby preventing the billet bracket 2 from being damaged when the billets are stacked.
[0032] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A heat preservation pit, characterized in that: include: The pit body includes a bottom insulation structure, a side wall insulation structure and a reinforced concrete structure; A plurality of steel billet supports are installed in the pit body, including a base frame and at least two support frames, wherein the support frames are fixedly connected to the base frame; An intermediate heat-insulating structure is provided between two adjacent steel billet supports; A first connecting frame, passing through the intermediate thermal insulation structure and connected to the supporting frame; The buffer base is arranged at the bottom end of the support frame, and comprises a buffer component and a heat-insulating layer. The buffer component is fixedly connected to the support frame, and the heat-insulating layer is arranged around the buffer component.
2. The heat preservation pit according to claim 1, characterized in that: A plurality of the buffer members are arranged in parallel, a connecting member is arranged between the plurality of the buffer members, and the buffer members and the connecting member are connected by welding.
3. The heat preservation pit according to claim 1, characterized in that: The bottom insulation structure and the side wall insulation structure are composed of a clay brick layer, an insulation brick layer, a ceramic fiber layer and a refractory material layer in sequence, and the middle insulation structure is composed of a clay brick layer, wherein the refractory material layer is connected to the pit body.
4. The heat preservation pit according to claim 1, characterized in that: The intermediate heat-insulating structure comprises a through hole for the first connecting frame to pass through, and the diameter of the through hole is greater than the width of the first connecting frame.
5. The heat preservation pit according to claim 1, characterized in that: Also includes: A heat-insulating cover covers the pit body.
6. The heat preservation pit according to claim 5, characterized in that: Also includes: The top heat-insulating layer is installed on the side of the heat-insulating cover facing the pit body and is arranged above the pit body.
7. The heat preservation pit according to claim 6, characterized in that: The steel billet support further comprises a second connecting frame, which is arranged parallel to the first connecting frame and mounted on the top of the supporting frame; The top heat-insulating layer abuts against the second connecting frame.
8. The heat preservation pit according to claim 6, characterized in that: The top insulation layer consists of a refractory mud layer and the insulation material layer.
9. The heat preservation pit according to claim 1, characterized in that: The pit body also includes fixed brackets arranged at both ends of the pit body, and the fixed brackets are fixedly connected to the steel billet brackets at the ends; The fixing bracket, the base frame and the supporting frame jointly support the steel billet.
10. The heat preservation pit according to claim 9, characterized in that: Also includes: The anti-collision bracket is installed on the side wall of the fixing bracket and is fixedly connected to the first connecting frame.