Multifunctional lining die for blast pipe of iron-making blast furnace

Abstract

The utility model provides a multifunctional lining die for an iron-making blast furnace air supply pipe, and belongs to the technical field of substrate pouring auxiliary devices. In the multifunctional lining mold for the blast pipe of the iron-making blast furnace, a lifting piece is arranged at one end of a demolding column, and the radial size of one end of the demolding column is larger than that of the other end of the demolding column; one end of each first mold column can be detachably connected with the other end of the demolding column, the other end of each first mold column can be detachably connected with one end of the other first mold column, and the radial sizes of the first mold columns in any position in the axial direction are the same; the radial size of one end of the second mold column is larger than that of the other end of the second mold column, and one end of the second mold column can be detachably connected with the other end of the demolding column; the radial size of one end of the third die column is equal to the radial size of the other end of the second die column and larger than the radial size of the other end of the third die column, and one end of the third die column can be detachably connected with the other end of the second die column. According to the utility model, the convenience of lining the blast pipe of the iron-making blast furnace can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of substrate casting auxiliary devices, specifically relating to a multi-functional lining mold for blast furnace air supply pipes. Background Technology

[0002] In the air supply system of a blast furnace, the air supply pipe, as an important heat transfer structure, has a high temperature resistance that is a significant factor affecting its operational stability. Naturally, it is also a crucial factor affecting the stable operation of the air supply system of the blast furnace.

[0003] Currently, in order to ensure the high temperature resistance of the air supply duct, a heat insulation structure is usually laid and poured inside the air supply duct. Correspondingly, in order to ensure that the inner cavity of the final heat insulation substrate meets the usage requirements of the air supply duct, a lining mold is first placed inside the air supply duct to ensure the final shape of the heat insulation substrate.

[0004] However, the existing lining mold structure is relatively simple, while the air supply pipes in the air supply device of the blast furnace are of many types, with corresponding shapes and sizes being quite diverse. During the laying and casting of the heat insulation substrate, the single lining mold greatly affects the efficiency of lining, resulting in poor convenience when lining the air supply pipes of the blast furnace. Utility Model Content

[0005] The technical problem to be solved by this utility model is how to improve the convenience of lining the air supply pipe of blast furnace. In view of the shortcomings of the existing technology, a multi-functional lining mold for air supply pipe of blast furnace is provided.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a multi-functional lining mold for blast furnace air supply pipes, comprising:

[0008] A demolding column, one end of which is provided with a lifting member for detachable connection with a lifting device; the radial dimension of one end of the demolding column is larger than the radial dimension of the other end of the demolding column; the radial sidewall of the demolding column has a smooth transition.

[0009] The first mold column has one end detachably connected to the other end of the demolding column, and the other end detachably connected to one end of another first mold column. The radial dimension of the first mold column is the same at any position along the axial direction.

[0010] The second mold column has a radial dimension at one end that is larger than the radial dimension at the other end, and the radial sidewalls of the second mold column have a smooth transition. One end of the second mold column is used for detachable connection with the other end of the demolding column.

[0011] The third mold column has a radial dimension at one end that is equal to and greater than the radial dimension at the other end of the second mold column. The radial sidewall of the third mold column has a smooth transition. One end of the third mold column is used for detachable connection with the other end of the second mold column.

[0012] Compared to existing technologies, the advantages of this invention include: for the lining casting of equal-diameter pipes in blast furnace air supply ducts, a multi-functional lining mold for blast furnace air supply ducts is constructed by setting a demolding column and a first mold column. One end of the demolding column is equipped with a lifting component, which can be detachably connected to a lifting device for easy movement and transportation of the mold. The radial dimension of one end of the demolding column is larger than that of the other end, and the radial sidewalls of the demolding column smoothly transition, making the demolding column a frustum structure. After being placed inside the pipe, the inclined sidewalls ensure smooth demolding after subsequent lining casting. Simultaneously, the radial dimension of the first mold column is the same at any position along the axial direction, making it suitable for casting linings of equal-diameter pipes after placement inside the pipe. One end of the first mold column is detachably connected to the other end of the demolding column, and the other end can be detachably connected to one end of another first mold column. This configuration allows for adjustment according to the length of the equal-diameter pipe. The number of first mold columns is adjusted to accommodate substrate casting of pipes of different diameters, effectively improving the functionality of the mold. Based on this, for substrate casting of variable-diameter pipes such as air supply ducts in blast furnaces, second and third mold columns are used to replace the first mold columns. One end of the second mold column is detachably connected to the other end of the demolding column to ensure the stability of the entire mold's movement and demolding. The radial dimension of one end of the second mold column is greater than the radial dimension of the other end, and the radial sidewall of the second mold column has a smooth transition. The radial dimension of one end of the third mold column is equal to and greater than the radial dimension of the other end of the second mold column, and the radial sidewall of the third mold column also has a smooth transition. One end of the third mold column is detachably connected to the other end of the second mold column. Thus, a variable-diameter columnar mold can be formed by the cooperation of the second and third mold columns, ensuring that the inner cavity shape of the substrate is the preset shape after the variable-diameter pipe is inserted and the substrate is cast. In summary, by replacing multiple mold columns, it is convenient to cast linings for different types of pipes, which is flexible and efficient and can effectively improve the convenience of lining the air supply pipes of blast furnaces.

[0013] Optionally, the lifting member is a columnar body located at the center of the end face of one end of the demolding column. The lifting member has a first opening and a second opening respectively through the side wall in the first direction and the side wall in the second direction. The first direction and the second direction are intersecting and are both parallel to the end face of one end of the demolding column. The first opening and the second opening are interconnected and are both used for the hook or rope of the lifting device to pass through.

[0014] Optionally, a first stud is provided at the center of the end face of the other end of the demolding column, a first screw hole is provided at the center of the end face of one end of the first mold column, and a second screw hole is provided at the center of the end face of one end of the second mold column. The first stud is used to be detachably installed in the first screw hole or the second screw hole.

[0015] Optionally, a second stud is provided at the center of the end face of the other end of the first mold post, and the second stud of the first mold post is used to be detachably installed in the first screw hole of the other first mold post.

[0016] Optionally, a third stud is provided at the center of the end face of the other end of the second mold post, and a third screw hole is provided at the center of the end face of one end of the third mold post, and the third stud is used to be detachably installed in the third screw hole.

[0017] Optionally, the demolding column includes a first outer shell and a first support frame. The first outer shell is a hollow structure with openings at both ends and is detachably mounted on the first support frame. The lifting member is located on one end of the first support frame.

[0018] The first mold column includes a second outer shell and a second support frame. The second outer shell is a hollow structure with openings at both ends and is detachably fitted onto the second support frame. One end of the second support frame is detachably connected to the other end of the first support frame, or detachably connected to the other end of the second support frame of another first mold column.

[0019] The second mold column includes a third outer shell and a third support frame. The third outer shell is a hollow structure with openings at both ends and is used to be detachably fitted onto the third support frame. One end of the third support frame is used to be detachably connected to the other end of the first support frame.

[0020] The third mold column includes a fourth outer shell and a fourth support frame. The fourth outer shell is a hollow structure with openings at both ends and is used to be detachably mounted on the fourth support frame. One end of the fourth support frame is used to be detachably connected to the other end of the third support frame.

[0021] Optionally, the first support frame, the second support frame, the third support frame, and the fourth support frame each include a main rod and support rods. The main rod extends vertically, and the support rods extend horizontally and are multiple in number. The multiple support rods are installed on the main rod at intervals around the vertical direction. The first outer shell, the second outer shell, the third outer shell, and the fourth outer shell are all used for detachable connection with the support rods.

[0022] Optionally, the main rod has a plurality of first threaded holes on its side wall, the plurality of first threaded holes being spaced apart along the vertical direction and spaced apart around the vertical direction, and a threaded post being provided at the center of the end face of one end of the support rod, the threaded post being detachably installed in the first threaded hole.

[0023] Optionally, the support rod includes multiple assembly blocks. The threaded post is provided at the center of the end face of one end of the assembly block, and a second threaded hole is provided at the center of the end face of the other end. The threaded post is used for detachable installation in the second threaded hole.

[0024] Optionally, the first housing, the second housing, the third housing, and the fourth housing are each provided with a sliding groove that passes through the lower end face and opens towards the central axis. The upper end of the sliding groove extends around the central axis to form a limiting groove, and the end of the support rod is used to move into the limiting groove through the sliding groove. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Figure 1 : An exploded view of a multi-functional lining mold for blast furnace air supply pipes in one embodiment of this utility model;

[0027] Figure 2 : An exploded view of a multi-functional lining mold for blast furnace air supply pipes in another embodiment of this utility model;

[0028] Figure 3 : An exploded view of a multi-functional lining mold for blast furnace air supply pipes in another embodiment of this utility model;

[0029] Figure 4 : A schematic diagram of the cooperation between the main rod and the support rod in an embodiment of this utility model;

[0030] Figure 5 : A schematic diagram of the structure of the third outer shell in this embodiment of the present invention;

[0031] Figure 6 : A schematic diagram of the structure of a multi-functional lining mold for blast furnace air supply pipes in another embodiment of this utility model;

[0032] Figure 7 : Figure 6 The cross-sectional structure diagram shown is from view A.

[0033] Wherein, 1-demolding pillar, 11-lifting component, 111-first opening, 112-second opening, 12-first stud, 13-first outer shell, 14-first support frame, 2-first mold pillar, 21-first screw hole, 22-second stud, 23-second outer shell, 24-second support frame, 3-second mold pillar, 31-second screw hole, 32-third stud, 33-third outer shell, 34-third support frame, 4-third mold pillar, 41-third screw hole, 42-fourth outer shell, 43-fourth support frame, 51-main rod, 511-first threaded hole, 52-support rod, 521-threaded pillar, 522-assembly block, 5221-second threaded hole, 61-sliding groove, 62-limiting groove. Detailed Implementation

[0034] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0035] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0036] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0037] This utility model provides a multi-functional lining mold for blast furnace air ducts, comprising: a demolding column 1, one end of which is provided with a lifting member 11 for detachable connection with a lifting device; the radial dimension of one end of the demolding column 1 is larger than the radial dimension of the other end of the demolding column 1, and the radial sidewall of the demolding column 1 has a smooth transition; and a first mold column 2, one end of which is detachably connected to the other end of the demolding column 1, and the other end of which is detachably connected to one end of another first mold column 2; the first mold column 2 can be positioned at any axial direction. All have the same radial dimensions; the second mold column 3 has a radial dimension at one end that is greater than the radial dimension at the other end of the second mold column 3, the radial sidewall of the second mold column 3 has a smooth transition, and one end of the second mold column 3 is used for detachable connection with the other end of the demolding column 1; the third mold column 4 has a radial dimension at one end that is equal to and greater than the radial dimension at the other end of the second mold column 3, the radial sidewall of the third mold column 4 has a smooth transition, and one end of the third mold column 4 is used for detachable connection with the other end of the second mold column 3.

[0038] In this embodiment, for the substrate casting of the equal-diameter pipe in the blast furnace air supply pipe, such as... Figure 2 As shown, a multi-functional lining mold for blast furnace blast pipes is constructed by setting a demolding column 1 and a first mold column 2. One end of the demolding column 1 is equipped with a lifting component 11, which can be detachably connected to a lifting device for easy movement and transportation of the mold. The radial dimension of one end of the demolding column 1 is larger than that of the other end, and the radial sidewalls of the demolding column 1 have a smooth transition, making the demolding column 1 a frustum structure. After being placed inside the pipe, the inclined sidewalls ensure smooth demolding after subsequent lining pouring. The radial dimension of the first mold column 2 is the same at any position along the axial direction. After being placed inside the pipeline, it can be used for casting substrates of equal-diameter pipelines. One end of the first mold column 2 is detachably connected to the other end of the demolding column 1, and the other end can be detachably connected to one end of another first mold column 2. This configuration allows the number of first mold columns 2 to be adjusted according to the length of the equal-diameter pipeline, thus making it suitable for casting substrates of equal-diameter pipelines of different sizes and effectively improving the functionality of the mold. Furthermore, for the casting of substrates for variable-diameter pipelines such as air supply pipes in blast furnace air supply pipes, such as… Figure 1As shown, a second mold column 3 and a third mold column 4 are used to replace the first mold column 2. One end of the second mold column 3 is detachably connected to the other end of the demolding column 1 to ensure the stability of the entire mold's movement and demolding. The radial dimension of one end of the second mold column 3 is larger than the radial dimension of the other end, and the radial sidewall of the second mold column 3 has a smooth transition. The radial dimension of one end of the third mold column 4 is equal to and larger than the radial dimension of the other end of the second mold column 3. The radial sidewall of the third mold column 4 has a smooth transition, and one end of the third mold column 4 is detachably connected to the other end of the second mold column 3. Thus, a variable-diameter column mold can be formed by the cooperation of the second mold column 3 and the third mold column 4. After the variable-diameter pipe is inserted and the substrate is poured, the inner cavity shape of the substrate is guaranteed to be the preset shape. In summary, by replacing multiple mold columns, it is convenient to pour substrates for different types of pipes, which is flexible and efficient and can effectively improve the convenience of lining the blast furnace air pipes.

[0039] Optionally, the lifting member 11 is a columnar body located at the center of the end face of one end of the demolding column 1. The lifting member 11 has a first opening 111 and a second opening 112 respectively through the side wall in the first direction and the side wall in the second direction. The first direction and the second direction are intersected and are both parallel to the end face of one end of the demolding column 1. The first opening 111 and the second opening 112 are interconnected and are both used for the hook or rope of the lifting device to pass through.

[0040] Specifically, both the first and second directions are horizontal.

[0041] In this optional embodiment, to ensure stability during demolding, such as Figure 1 As shown, the lifting member 11 is a columnar body located at the center of the end face of one end of the demolding column 1, which facilitates the movement of the demolding column 1 into and out of the pipeline. The lifting member 11 has a first opening 111 and a second opening 112 through its side wall in the first direction and the side wall in the second direction, respectively. The first direction and the second direction are intersected and are both parallel to the end face of one end of the demolding column 1. The first opening 111 and the second opening 112 are interconnected and can both be used to insert the hook or rope of the lifting device. This arrangement facilitates the quick connection between the lifting device and the lifting member 11 and ensures the stability of the lifting device when driving the demolding column 1 through the lifting member 11.

[0042] Optionally, a first stud 12 is protruding at the center of the end face of the other end of the demolding column 1, a first screw hole 21 is recessed at the center of the end face of one end of the first mold column 2, and a second screw hole 31 is recessed at the center of the end face of one end of the second mold column 3. The first stud 12 is used to be detachably installed in the first screw hole 21 or the second screw hole 31.

[0043] In this optional embodiment, to ensure the stability and convenience of the connection between the demolding column 1 and the first mold column 2 or the second mold column 3, such as Figure 1 and Figure 2 As shown, a first stud 12 protrudes from the center of the end face of the other end of the demolding column 1, while a first screw hole 21 is recessed at the center of the end face of one end of the first mold column 2. The first stud 12 is detachably installed in the first screw hole 21 by threaded connection, thereby achieving a stable and convenient connection between the demolding column 1 and the first mold column 2. Correspondingly, a second screw hole 31 is recessed at the center of the end face of one end of the second mold column 3, and the first stud 12 is detachably installed in the second screw hole 31 by threaded connection, thereby achieving a stable and convenient connection between the demolding column 1 and the second mold column 3.

[0044] Optionally, a second stud 22 is provided at the center of the end face of the other end of the first mold post 2, and the second stud 22 of the first mold post 2 is used to be detachably installed in the first screw hole 21 of the other first mold post 2.

[0045] In this optional embodiment, to ensure the stability and convenience of the connection between the multiple first mold pillars 2, such as Figure 2 As shown, a second stud 22 protrudes from the center of the end face of the other end of the first mold post 2. The second stud 22 of the first mold post 2 can be detachably installed in the first screw hole 21 of another first mold post 2 through a threaded connection, thereby realizing a stable and convenient connection between multiple first mold posts 2.

[0046] Optionally, a third stud 32 is provided at the center of the end face of the other end of the second mold post 3, and a third screw hole 41 is provided at the center of the end face of one end of the third mold post 4. The third stud 32 is used to be detachably installed in the third screw hole 41.

[0047] In this optional embodiment, for the sake of stability and convenience of the connection between the second mold post 3 and the third mold post 4, such as Figure 1 As shown, a third stud 32 is protruding at the center of the end face of the other end of the second mold post 3, and a third screw hole 41 is recessed at the center of the end face of one end of the third mold post 4. The third stud 32 can be detachably installed in the third screw hole 41 by threaded connection, thereby realizing a stable and convenient connection between the second mold post 3 and the third mold post 4.

[0048] Optionally, the demolding column 1 includes a first outer shell 13 and a first support frame 14. The first outer shell 13 is a hollow structure with openings at both ends and is detachably mounted on the first support frame 14. A lifting member 11 is disposed on one end of the first support frame 14. The first mold column 2 includes a second outer shell 23 and a second support frame 24. The second outer shell 23 is a hollow structure with openings at both ends and is detachably mounted on the second support frame 24. One end of the second support frame 24 is detachably connected to the other end of the first support frame 14, or to the second support frame 2 of another first mold column 2. The other end of 4 is detachable; the second mold column 3 includes a third outer shell 33 and a third support frame 34. The third outer shell 33 is a hollow structure with openings at both ends and is used to be detachably fitted onto the third support frame 34. One end of the third support frame 34 is used to be detachably connected to the other end of the first support frame 14; the third mold column 4 includes a fourth outer shell 42 and a fourth support frame 43. The fourth outer shell 42 is a hollow structure with openings at both ends and is used to be detachably fitted onto the fourth support frame 43. One end of the fourth support frame 43 is used to be detachably connected to the other end of the third support frame 34.

[0049] In this optional embodiment, such as Figure 3 As shown, a first outer shell 13 and a first support frame 14 are arranged to form a demolding column 1. The first outer shell 13 is a hollow structure with openings at both ends and is detachably mounted on the first support frame 14. A lifting member 11 is provided on one end of the first support frame 14, making the entire demolding column 1 a hollow structure. This not only reduces the weight of the demolding column 1 and facilitates the transportation of the entire mold, but also allows for the replacement of the first outer shell 13 through the detachable connection between the first outer shell 13 and the first support frame 14, resulting in demolding columns 1 of various sizes, effectively improving the versatility of the mold; correspondingly, as Figure 3 , Figure 6 and Figure 7 As shown, a second outer shell 23 and a second support frame 24 are arranged to form a first mold column 2. The second outer shell 23 is a hollow structure with openings at both ends and is detachably fitted onto the second support frame 24. One end of the second support frame 24 can be detachably connected to the other end of the first support frame 14, or detachably connected to the other end of the second support frame 24 of another first mold column 2. This not only facilitates the connection between multiple first mold columns 2 and the connection between the first mold column 2 and the demolding column 1, reducing the weight of the entire mold, but also allows for the acquisition of first mold columns 2 of various sizes by replacing the second outer shell 23, effectively improving the versatility of the mold; based on this, as Figure 3As shown, a third outer shell 33 and a third support frame 34 are arranged to form a second mold column 3. The third outer shell 33 is a hollow structure with openings at both ends and is detachably fitted onto the third support frame 34. One end of the third support frame 34 can be detachably connected to the other end of the first support frame 14. At the same time, a fourth outer shell 42 and a fourth support frame 43 are arranged to form a third mold column 4. The fourth outer shell 42 is a hollow structure with openings at both ends and is detachably fitted onto the fourth support frame 43. One end of the fourth support frame 43 can be detachably connected to the other end of the third support frame 34. This not only ensures the connection stability between the demolding column 1, the second mold column 3, and the third mold column 4 and reduces the weight of the entire mold, but also allows for the acquisition of second mold columns 3 and third mold columns 4 of various sizes by replacing the third outer shell 33 and the fourth outer shell 42, effectively improving the versatility of the mold.

[0050] Optionally, the first support frame 14, the second support frame 24, the third support frame 34 and the fourth support frame 43 each include a main rod 51 and a support rod 52. The main rod 51 extends vertically and the support rod 52 extends horizontally. There are multiple support rods 52, which are installed on the main rod 51 at intervals around the vertical direction. The first outer shell 13, the second outer shell 23, the third outer shell 33 and the fourth outer shell 42 are all used for detachable connection with the support rod 52.

[0051] In this optional embodiment, such as Figure 4 As shown, a first support frame 14, a second support frame 24, a third support frame 34, and a fourth support frame 43 are formed by main rod 51 and support rods 52. The main rod 51 extends vertically to ensure the overall stability of the support frame, while the support rods 52 extend horizontally and there are multiple support rods 52. The multiple support rods 52 are installed on the main rod 51 at intervals around the vertical direction, thus serving as support branches of the entire support frame. On this basis, the first outer shell 13, the second outer shell 23, the third outer shell 33, and the fourth outer shell 42 can all be detachably connected to the support rods 52, thereby achieving a stable connection between the outer shell and the support rods 52 and ensuring the structural stability of the entire mold.

[0052] Optionally, the main rod 51 has a plurality of first threaded holes 511 on its side wall. The plurality of first threaded holes 511 are arranged at intervals along the vertical direction and at intervals around the vertical direction. A threaded post 521 is provided at the center of the end face of one end of the support rod 52. The threaded post 521 is used to be detachably installed in the first threaded hole 511.

[0053] In this optional embodiment, such as Figure 5As shown, the main rod 51 has multiple first threaded holes 511 on its side wall, which are arranged at intervals along the vertical direction. The support rod 52 has a threaded post 521 at the center of its end face. The threaded post 521 can be detachably installed in the first threaded hole 511. With this arrangement, the position of the support rod 52 on the main rod 51 can be adjusted by selecting the position of the first threaded hole 511 connected to the threaded post 521, thereby achieving a flexible combination of the support rod 52 and the main rod 51, effectively improving the structural stability and connection convenience of the entire mold.

[0054] Optionally, the support rod 52 includes multiple assembly blocks 522. One end of the assembly block 522 has a threaded post 521 at its center and the other end has a second threaded hole 5221 at its center. The threaded post 521 is detachably installed in the second threaded hole 5221.

[0055] In this optional embodiment, in order to facilitate stable support for shells of different sizes, such as Figure 4 As shown, multiple assembly blocks 522 are arranged to form a support rod 52. One end of the assembly block 522 has a threaded post 521 at its center and the other end has a second threaded hole 5221 at its center. The threaded post 521 can be detachably installed in the second threaded hole 5221. In this way, by stacking multiple assembly blocks 522 in the same direction and connecting them with threads, various support rods 52 with different lengths can be formed, which is convenient for connecting with shells of different inner diameters and effectively improves the support stability of shells of different sizes.

[0056] Optionally, the first housing 13, the second housing 23, the third housing 33 and the fourth housing 42 are each provided with a sliding groove 61 that passes through the lower end face and opens towards the central axis. The upper end of the sliding groove 61 extends around the central axis to form a limiting groove 62, and the end of the support rod 52 is used to move into the limiting groove 62 through the sliding groove 61.

[0057] In this optional embodiment, such as Figures 5 to 7 As shown, to facilitate the detachable connection between the outer shell and the support rod 52 and to ensure the stability of the connection, the first outer shell 13, the second outer shell 23, the third outer shell 33, and the fourth outer shell 42 are all provided with sliding grooves 61 that pass through the lower end face and open towards the central axis. With this configuration, the end of the support rod 52 can be moved into the sliding groove 61 by moving the main rod 51 upward. On this basis, the upper end of the sliding groove 61 extends around the central axis to form a limiting groove 62. Thus, the end of the support rod 52 can be moved into the limiting groove 62 by rotating the main rod 51. The limiting of the top and bottom walls of the limiting groove 62 ensures the connection stability between the support rod 52 and the outer shell. Furthermore, the end of the support rod 52 can be moved out of the limiting groove 62 and the sliding groove 61 in sequence by rotating and moving the main rod 51, thereby realizing the detachable connection between the outer shell and the support rod 52.

[0058] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-functional lining mold for blast furnace air supply pipes, characterized in that, The utility model relates to a multi-functional lining mould for blast furnace air supply pipe of iron making, which comprises a demoulding column (1), one end of the demoulding column (1) is provided with a pulling part (11) for detachable connection with a pulling device, the radial dimension of one end of the demoulding column (1) is larger than that of the other end, and the radial side wall of the demoulding column (1) is smoothly transitioned; a first mould column (2) is detachably connected with the other end of the demoulding column (1) at one end and with the other end of another first mould column (2) at the other end, and the radial dimension of the first mould column (2) is the same at any axial position; a second mould column (3) is detachably connected with the other end of the demoulding column (1) at one end, the radial dimension of one end of the second mould column (3) is larger than that of the other end, and the radial side wall of the second mould column (3) is smoothly transitioned; a third mould column (4) is detachably connected with the other end of the second mould column (3) at one end, the radial dimension of one end of the third mould column (4) is equal to that of the other end of the second mould column (3) and larger than that of the other end of the third mould column (4), and the radial side wall of the third mould column (4) is smoothly transitioned. The pulling part (11) is a columnar body located at the center of the end face of one end of the demoulding column (1), the side wall in the first direction and the side wall in the second direction of the pulling part (11) are respectively provided with a first opening (111) and a second opening (112), the first direction and the second direction are cross arranged and parallel to the end face of one end of the demoulding column (1), the first opening (111) and the second opening (112) are communicated with each other and used for the hook or rope of the pulling device to pass through. A first threaded stud (12) is protruded at the center of the end face of the other end of the demoulding column (1), a first threaded hole (21) is recessed at the center of the end face of one end of the first mould column (2), a second threaded hole (31) is recessed at the center of the end face of one end of the second mould column (3), and the first threaded stud (12) is detachably installed in the first threaded hole (21) or the second threaded hole (31). A second threaded stud (22) is protruded at the center of the end face of the other end of the first mould column (2), and the second threaded stud (22) of one first mould column (2) is detachably installed in the first threaded hole (21) of another first mould column (2). A third threaded stud (32) is protruded at the center of the end face of the other end of the second mould column (3), and a third threaded hole (41) is recessed at the center of the end face of one end of the third mould column (4), and the third threaded stud (32) is detachably installed in the third threaded hole (41).

2. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 1, characterized in that, 6. The multi-functional lining mould for blast furnace air supply pipe of iron making according to any one of claims 1 to 5, characterized in that, 3. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 2, characterized in that, ​ 4. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 3, characterized by, ​ 5. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 4, characterized in that, ​ ​ The demolding column (1) comprises a first shell (13) and a first support frame (14), the first shell (13) is a hollow structure with both ends open, and is used for detachable sleeving on the first support frame (14), and the pulling piece (11) is arranged on one end of the first support frame (14); The first mold column (2) comprises a second shell (23) and a second support frame (24), the second shell (23) is a hollow structure with both ends open, and is used for detachable sleeving on the second support frame (24), and one end of the second support frame (24) is used for detachable connection with the other end of the first support frame (14) or the other end of the second support frame (24) of another first mold column (2); The second mold column (3) comprises a third shell (33) and a third support frame (34), the third shell (33) is a hollow structure with both ends open, and is used for detachable sleeving on the third support frame (34), and one end of the third support frame (34) is used for detachable connection with the other end of the first support frame (14); The third mold column (4) comprises a fourth shell (42) and a fourth support frame (43), the fourth shell (42) is a hollow structure with both ends open, and is used for detachable sleeving on the fourth support frame (43), and one end of the fourth support frame (43) is used for detachable connection with the other end of the third support frame (34).

7. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 6, characterized in that, The first support frame (14), the second support frame (24), the third support frame (34) and the fourth support frame (43) all comprise a main rod (51) and a plurality of support rods (52), the main rod (51) is arranged in the vertical direction, the support rod (52) is arranged in the horizontal direction, and the plurality of support rods (52) are arranged on the main rod (51) around the vertical direction, and the first shell (13), the second shell (23), the third shell (33) and the fourth shell (42) are used for detachable connection with the support rod (52).

8. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 7, characterized in that, A plurality of first threaded holes (511) are arranged on the side wall of the main rod (51), the plurality of first threaded holes (511) are arranged in the vertical direction and around the vertical direction, a threaded column (521) is arranged at the center of the end face of one end of the support rod (52), and the threaded column (521) is used for detachable installation in the first threaded hole (511).

9. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 8, characterized in that, The support rod (52) comprises a plurality of assembly blocks (522), the threaded column (521) is arranged at the center of the end face of one end of the assembly block (522), and a second threaded hole (5221) is arranged at the center of the end face of the other end of the assembly block (522), and the threaded column (521) is used for detachable installation in the second threaded hole (5221).

10. The multifunctional lining mold for blast furnace air supply duct of an ironworks according to claim 7, wherein The first shell (13), the second shell (23), the third shell (33) and the fourth shell (42) are provided with sliding grooves (61) penetrating through the lower end face and opening towards the central axis, the upper end of the sliding groove (61) extends around the central axis to form a limiting groove (62), and the end of the supporting rod (52) is used for moving into the limiting groove (62) through the sliding groove (61).

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