Furnace body frame structure

Abstract

The utility model provides a furnace body frame structure, which relates to the technical field of supporting structures, and comprises a lower frame section, a middle frame section and an upper frame section, the lower frame section comprises a plurality of lower frame columns, the plurality of lower frame columns are annularly arranged at intervals to form a lower frame, and first supporting pieces are arranged in the lower frame columns; the middle frame section comprises a plurality of middle frame columns, the middle frame columns are annularly arranged at intervals to form a middle frame, and second supporting pieces are arranged in the middle frame columns; a furnace top platform is arranged at the top of the middle frame; the upper frame section comprises a plurality of upper frame columns which are annularly arranged at intervals to form an upper frame. According to the utility model, the first supporting piece is arranged in the lower frame column, so that the supporting strength of the lower frame column is further improved, the lower frame section can better support the middle frame section and the upper frame section, the reduction of steel consumption is facilitated, and the effect of reducing the construction cost is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of support structures, and particularly relates to a furnace body frame structure. Background Art

[0002] In order to better meet the needs of blast furnace production operations, a furnace body frame structure is also provided on the blast furnace. The main functions of the steel structure of the blast furnace body frame are to bear the top load of the furnace, transfer the load of the furnace body to the roadbed, and play a role in sealing the furnace shell. The lower frame columns of the existing steel structure of the blast furnace body frame generally have a box-shaped cross-section, and the upper frame columns and frame support members mostly have an I-shaped cross-section. When the lower frame columns adopt a box-shaped cross-section, the lower frame columns are thin-walled structures. Since the lower frame columns will be subjected to great pressure during use, the box-shaped cross-section needs to be made very large to meet the support requirements, thus increasing the overall size of the lower frame columns and resulting in an increase in the amount of steel used. Moreover, when the upper frame columns adopt an I-shaped cross-section and the frame support also adopts a large I-shaped cross-section support form, due to the uneven distribution of platform loads, the structure is always in a two-way stress state. The I-shaped cross-section has strong mechanical properties in the strong axis direction and weak mechanical properties in the weak axis direction. In order to meet the support requirements, only the I-shaped cross-section can be made larger, increasing the overall size of the upper frame columns and / or frame supports and resulting in an increase in the amount of steel used. Therefore, how to improve the support performance of the furnace body frame structure and reduce the amount of steel used has become an urgent technical problem to be solved at present. Summary of the Utility Model

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present utility model is to provide a furnace body frame structure for improving the support performance and reducing the amount of steel used.

[0004] The above object of the present utility model can be achieved by the following technical solutions. The present utility model provides a furnace body frame structure, including:

[0005] A lower frame section, the lower frame section includes a plurality of lower frame columns and a first platform. The plurality of lower frame columns are arranged at intervals in a ring to form a lower frame. The first platform is located within the lower frame and is provided at the top of the lower frame. A first support member is provided within the lower frame columns;

[0006] A middle frame section, the middle frame section includes a plurality of middle frame columns and at least one second platform. The plurality of middle frame columns are arranged at intervals in a ring to form a middle frame. The second platform is located within the middle frame and is connected to the middle frame. A second support member is provided within the middle frame columns; a furnace top platform is provided at the top of the middle frame;

[0007] Upper frame section, the upper frame section includes a plurality of upper frame columns, and at least one third platform. The plurality of upper frame columns are arranged at intervals in a ring to form an upper frame, and the third platform is located within the upper frame and is connected to the upper frame.

[0008] In a preferred embodiment of the present invention, the lower frame column includes a lower steel pipe, the cross-section of the lower frame column is circular, and the first support member is arranged in the inner cavity of the lower steel pipe.

[0009] In a preferred embodiment of the present invention, the inner cavity of the lower steel pipe is filled with concrete, and the concrete forms the first support member after consolidation.

[0010] In a preferred embodiment of the present invention, the lower frame section further includes at least one lower support member, and the lower support member is arranged between adjacent lower frame columns and connects the lower frame columns and / or the first platform.

[0011] In a preferred embodiment of the present invention, the lower support member includes a lower support steel pipe, and the cross-section of the lower support steel pipe is circular.

[0012] In a preferred embodiment of the present invention, the middle frame column includes a middle steel pipe, the cross-section of the middle frame column is circular, and the second support member is arranged in the inner cavity of the middle steel pipe.

[0013] In a preferred embodiment of the present invention, the middle steel pipes are arranged in one-to-one correspondence with the lower steel pipes, and the middle steel pipes and the corresponding lower steel pipes are integrally arranged.

[0014] In a preferred embodiment of the present invention, the inner cavity of the middle steel pipe is filled with concrete, and the concrete forms the second support member after consolidation.

[0015] In a preferred embodiment of the present invention, the middle frame section further includes at least one middle support member, and the middle support member is arranged between adjacent middle frame columns and connects the middle frame columns and / or the second platform.

[0016] In a preferred embodiment of the present invention, the middle support member includes a middle support steel pipe, and the cross-section of the middle support steel pipe is circular.

[0017] In a preferred embodiment of the present invention, the upper frame column includes an upper steel pipe, and the cross-section of the upper frame column is circular.

[0018] In a preferred embodiment of the present utility model, the upper frame section further includes at least one upper support member, which is disposed between adjacent upper frame columns and connects the upper frame columns and / or the third platform.

[0019] In a preferred embodiment of the present utility model, in the height direction, the middle frame section is within the projection range of the lower frame section, and the upper frame section is within the projection range of the middle frame section.

[0020] In a preferred embodiment of the present utility model, in the direction from bottom to top, the upper frame section includes a bottom section, a contraction section, and a top section arranged in sequence. The bottom section is connected to the furnace top platform, and the contraction section is gradually contracted and connects the bottom section and the top section.

[0021] In a preferred embodiment of the present utility model, an installation structure is provided on the upper frame section, and the installation structure is used for installing external devices.

[0022] The technical solution of the present utility model has the following remarkable beneficial effects:

[0023] When the furnace body frame structure of the present utility model is in use, the furnace body frame structure is arranged between the blast furnace and the roadbed. The furnace body frame structure can bear the load of the blast furnace and transfer the blast furnace load to the roadbed. Moreover, the furnace body frame structure is arranged outside the blast furnace, so that the furnace body frame structure can also play a certain sealing role for the blast furnace.

[0024] Specifically, the furnace body frame structure includes a lower frame section, a middle frame section, and an upper frame section arranged in sequence. The middle frame section and the upper frame section can be supported by the lower frame section. The lower frame section includes multiple lower frame columns, and the multiple lower frame columns are arranged at intervals in a ring to form the lower frame. And a first support member is provided inside the lower frame columns, so that the support strength of the lower frame columns is further improved by the first support member, enabling the lower frame section to better support the middle frame section and the upper frame section, and helping to reduce the steel consumption of the lower frame section, thus playing a role in reducing the construction cost.

[0025] By redesigning the lower frame columns and arranging the first support members inside the lower frame columns, the present utility model significantly improves the structural strength of the lower frame columns, thereby reducing the overall volume of the lower frame section, helping to reduce the steel consumption, and enabling the furnace body frame structure to better meet the production and construction requirements.

[0026] In particular, when the lower frame column is a circular steel pipe and the first support member is concrete fixed inside the circular steel pipe, the circular steel pipe has better support uniformity compared to the I-shaped steel beam. By arranging the first support member inside the circular steel pipe, the installation difficulty of the first support member is reduced, and the hollow cavity of the circular steel pipe is fully utilized, so as not to increase the volume of the lower frame column, thereby reducing the steel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in understanding the present invention, rather than specifically limiting the shapes and proportional dimensions of the components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions according to specific circumstances to implement the present invention under the teaching of the present invention.

[0029] Figure 1 Schematic diagram of the use state of an embodiment of the furnace body frame structure of the present invention;

[0030] Figure 2 Schematic side view structure diagram of an embodiment of the furnace body frame structure of the present invention;

[0031] Figure 3 Schematic front view structure diagram of an embodiment of the furnace body frame structure of the present invention.

[0032] Reference numerals of the above drawings:

[0033] 10, blast furnace;

[0034] 100, lower frame section; 110, lower frame column; 120, first platform; 130, first support member;

[0035] 200, middle frame section; 210, middle frame column; 220, second platform; 230, second support member; 240, furnace top platform; 250, middle support member;

[0036] 300, upper frame section; 301, bottom section; 302, contraction section; 303, top section; 310, upper frame column; 320, third platform; 330, upper support member;

[0037] 400. Mounting structure. Specific embodiments

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 to 3 As shown, the present invention provides a furnace body frame structure, which includes a lower frame section 100, a middle frame section 200, and an upper frame section 300. The lower frame section 100 includes a plurality of lower frame columns 110 and a first platform 120. The plurality of lower frame columns 110 are arranged at intervals in a ring to form a lower frame. The first platform 120 is located inside the lower frame and is provided at the top of the lower frame. A first support member 130 is provided inside the lower frame column 110. The middle frame section 200 includes a plurality of middle frame columns 210 and at least one second platform 220. The plurality of middle frame columns 210 are arranged at intervals in a ring to form a middle frame. The second platform 220 is located inside the middle frame and is connected to the middle frame. A second support member 230 is provided inside the middle frame column 210. A furnace top platform 240 is provided at the top of the middle frame. The upper frame section 300 includes a plurality of upper frame columns 310 and at least one third platform 320. The plurality of upper frame columns 310 are arranged at intervals in a ring to form an upper frame. The third platform 320 is located inside the upper frame and is connected to the upper frame.

[0040] Overall, when the furnace body frame structure is in use, the furnace body frame structure is arranged between the blast furnace 10 and the roadbed. The furnace body frame structure can bear the load of the blast furnace 10 and transfer the load of the blast furnace 10 to the roadbed. Moreover, the furnace body frame structure is arranged outside the blast furnace 10, so that the furnace body frame structure can also play a certain sealing role for the blast furnace 10.

[0041] Specifically, as Figure 1In the illustrated embodiment, the furnace body frame structure includes a lower frame section 100, a middle frame section 200, and an upper frame section 300 arranged in sequence. The middle frame section 200 and the upper frame section 300 can be supported by the lower frame section 100. The lower frame section 100 includes multiple lower frame columns 110. The multiple lower frame columns 110 are arranged at intervals in a ring to form the lower frame. And a first support member 130 is provided inside the lower frame columns 110. Thus, the support strength of the lower frame columns 110 is further improved by the first support member 130, enabling the lower frame section 100 to better support the middle frame section 200 and the upper frame section 300, and helping to reduce the steel consumption of the lower frame section 100, playing a role in reducing the construction cost.

[0042] In this utility model, by redesigning the lower frame columns 110 and arranging the first support member 130 inside the lower frame columns 110, the structural strength of the lower frame columns 110 is significantly improved. Furthermore, the overall volume of the lower frame section 100 is reduced, which helps to reduce the steel consumption, enabling the furnace body frame structure to better meet the production and construction requirements.

[0043] In the embodiment of this utility model, the designers can adjust the setting method and size of the furnace top platform 240 according to the usage needs, and no specific restrictions are made here. Preferably, the furnace top platform 240 projects approximately 6m and 4.5m in two directions respectively. The upper frame section 300 is located on the furnace top platform 240. Among them, through holes for the blast furnace 10 to pass through can be provided on the first platform 120, the second platform 220, and the furnace top platform 240.

[0044] In the embodiment of this utility model, the designers can adjust the setting quantity and arrangement method of the lower frame columns 110 according to the usage needs, and no specific restrictions are made here.

[0045] For example, four lower frame columns 110 are provided, and the four lower frame columns 110 are arranged in a rectangular shape. The designers can adjust the size of the lower frame according to the usage needs, and no specific restrictions are made here. For example, the size of the lower frame is approximately 16m×16m, and the first platform 120 can also be set to approximately 16m×16m.

[0046] In the embodiment of this utility model, the lower frame columns 110 include lower steel pipes. The cross-section of the lower frame columns 110 is circular, and the first support member 130 is arranged in the inner cavity of the lower steel pipes.

[0047] By arranging the first support member 130 in the inner cavity of the lower steel pipes, the integration between the first support member 130 and the lower steel pipes is improved, which helps to reduce the volume of the lower frame section 100, and further reduces the steel consumption. When the lower frame columns 110 are circular steel pipes, the circular steel pipes have better support uniformity compared with I-shaped steel beams.

[0048] In an embodiment of the present utility model, as Figure 2 shown in the embodiment, the inner cavity of the lower steel pipe is filled with concrete, and after the concrete is consolidated, it forms the first support member 130.

[0049] By filling the inner cavity of the lower steel pipe with concrete to form the first support member 130, the difficulty of setting the first support member 130 is reduced, and the hollow cavity of the circular steel pipe is fully utilized, without increasing the volume of the lower frame column 110, and significantly improving the support strength of the lower frame column 110, making the volume of the lower frame column 110 smaller under the unit support strength, thereby reducing the steel consumption.

[0050] In a feasible embodiment of the present utility model, as Figure 1 and Figure 2 shown in the embodiment, the lower support member may not be provided on the lower frame section 100, and no specific limitation is made here.

[0051] In another feasible embodiment of the present utility model, the lower frame section 100 further includes at least one lower support member, and the lower support member is disposed between adjacent lower frame columns 110 and connects the lower frame columns 110 and / or the first platform 120.

[0052] Preferably, a plurality of lower support members are provided, and the structural strength between adjacent lower frame columns 110 is improved through the cooperation of the plurality of lower support members, thereby improving the overall strength of the lower frame section 100.

[0053] The designer can adjust the setting quantity and arrangement mode of the lower support members according to the use requirements, and no specific limitation is made here. Preferably, the lower support members can be inclinedly disposed between adjacent lower frame columns 110, and any lower support members can be cross-disposed, thereby helping to further improve the structural strength.

[0054] More preferably, the lower support member includes a lower support steel pipe, and the cross section of the lower support steel pipe is circular. The circular lower support steel pipe has a better support effect compared with the I-shaped steel beam, has the same bending stiffness in and out of the plane, uniform stress, and is convenient for bearing loads in all directions.

[0055] In an embodiment of the present utility model, the middle frame column 210 includes a middle steel pipe, the cross section of the middle frame column 210 is circular, and the second support member 230 is disposed in the inner cavity of the middle steel pipe.

[0056] By using the middle steel pipe as the middle frame column 210, the circular middle steel pipe has a better support effect compared with the I-shaped steel beam, has the same bending stiffness in and out of the plane, uniform stress, so that the middle frame column 210 can have a better support effect in all directions.

[0057] Specifically, the middle steel pipes and the lower steel pipes are arranged in one-to-one correspondence, and the middle steel pipes and the corresponding lower steel pipes are integrally arranged. By integrally arranging the middle steel pipes and the corresponding lower steel pipes, the connection strength between the lower frame section 100 and the middle frame section 200 is significantly improved, and it is convenient to better transfer the load.

[0058] In the embodiment of the present utility model, as Figure 2 shown in the embodiment, the inner cavity of the middle steel pipe is filled with concrete, and the concrete is solidified to form the second support member 230.

[0059] By filling the middle steel pipe with concrete to form the second support member 230, the difficulty of setting the second support member 230 is reduced, and the hollow cavity of the circular steel pipe is fully utilized, without increasing the volume of the middle frame column 210, and the support strength of the middle frame column 210 is significantly improved, making the volume of the middle frame column 210 smaller under the unit support strength, thereby reducing the steel consumption.

[0060] Moreover, by using concrete to manufacture the second support member 230, when the middle steel pipe and the corresponding lower steel pipe are integrally arranged, the second support member 230 and the first support member 130 can also be manufactured simultaneously and integrally arranged, significantly improving the connection strength between the first support member 130 and the second support member 230, and facilitating better load transfer.

[0061] In the embodiment of the present utility model, the middle frame section 200 further includes at least one middle support member 250, and the middle support member 250 is arranged between adjacent middle frame columns 210 and connects the middle frame columns 210 and / or the second platform 220.

[0062] Preferably, a plurality of middle support members 250 are arranged, and the structural strength between adjacent middle frame columns 210 is improved through the coordinated cooperation of the plurality of middle support members 250, thereby improving the overall strength of the middle frame section 200.

[0063] Designers can adjust the setting quantity and arrangement mode of the middle support members 250 according to the use requirements, and no specific limitation is made here.

[0064] Preferably, the middle support member 250 can be inclined between adjacent middle frame columns 210, and any middle support members 250 can be cross-arranged, which helps to further improve the structural strength.

[0065] More preferably, the middle support member 250 includes a middle support steel pipe, and the cross-section of the middle support steel pipe is circular. The circular middle support steel pipe has a better support effect than the I-shaped steel pipe and is convenient for bearing loads in all directions.

[0066] When there are multiple second platforms 220, the middle support steel pipe can be arranged between adjacent second platforms 220, and no specific limitation is made here.

[0067] Designers can adjust the number of settings and arrangement positions of the second platform 220 according to the usage requirements, and no specific limitation is made here. For example, there are two second platforms 220, one of the second platforms 220 is arranged at a height of approximately 28.7 m, and the other second platform 220 is arranged at a height of approximately 32.45 m. And, the size of the second platform 220 is approximately set to 15 m × 15 m.

[0068] In the embodiment of the present utility model, as Figure 2 and Figure 3 shown in the embodiment, the upper frame column 310 includes an upper steel pipe, and the cross-section of the upper frame column 310 is circular.

[0069] By using the upper steel pipe as the upper frame column 310, the circular upper steel pipe has a better support effect compared with the I-shaped steel beam, with the same flexural stiffness in and out of the plane and uniform stress, thus facilitating the bearing of loads in all directions.

[0070] Preferably, the upper steel pipes are arranged in one-to-one correspondence with the middle steel pipes, and the upper steel pipes and the corresponding middle steel pipes are integrally arranged. By integrally arranging the upper steel pipes and the corresponding middle steel pipes, the connection strength between the upper frame section 300 and the middle frame section 200 is significantly improved, and it is convenient to better transmit loads.

[0071] In the embodiment of the present utility model, the upper frame section 300 further includes at least one upper support member 330, and the upper support member 330 is arranged between adjacent upper frame columns 310 and connects the upper frame columns 310 and / or the third platform 320.

[0072] Preferably, multiple upper support members 330 are arranged. Through the coordinated cooperation of the multiple upper support members 330, the structural strength between adjacent upper frame columns 310 is improved, and further the overall strength of the upper frame section 300 is improved.

[0073] Designers can adjust the number of settings and arrangement modes of the upper support member 330 according to the usage requirements, and no specific limitation is made here.

[0074] Preferably, the upper support member 330 can be inclined and arranged between adjacent upper frame columns 310, and any upper support member 330 can be cross-arranged, which helps to further improve the structural strength.

[0075] More preferably, the upper support member 330 includes an upper support steel pipe, and the cross-section of the upper support steel pipe is circular. The circular upper support steel pipe has a better support effect compared to the I-shaped steel pipe, with the same bending stiffness in and out of the plane and uniform stress, thus facilitating the bearing of loads in all directions.

[0076] When there are multiple third platforms 320, the upper support steel pipe can be arranged between adjacent third platforms 320, and no specific limitation is made here. Designers can adjust the number of settings and the arrangement positions of the third platforms 320 according to the usage requirements, and no specific limitation is made here.

[0077] In the embodiment of the present utility model, along the height direction, the middle frame section 200 is located within the projection range of the lower frame section 100, and the upper frame section 300 is located within the projection range of the middle frame section 200.

[0078] By controlling the sizes of the lower frame section 100, the middle frame section 200, and the upper frame section 300, the lower frame section 100, the middle frame section 200, and the upper frame section 300 can better transfer loads, thereby improving the overall structural stability of the furnace body frame structure.

[0079] In a feasible embodiment, the lower frame section 100 is generally constructed in a cuboid shape. Preferably, the cross-section of the lower frame section 100 is generally square. More preferably, the cross-sectional shape of the middle frame section 200 is the same as that of the lower frame section 100, and the cross-section of the middle frame section 200 is slightly smaller than that of the lower frame section 100, thereby contributing to improving the stability between the lower frame section 100 and the middle frame section 200.

[0080] Further, along the direction from bottom to top, the upper frame section 300 includes a bottom section 301, a contraction section 302, and a top section 303 arranged in sequence. The bottom section 301 is connected to the furnace top platform 240, and the contraction section 302 is gradually contracted and connects the bottom section 301 and the top section 303.

[0081] By arranging the contraction section 302 between the bottom section 301 and the top section 303, the cross-section of the upper frame section 300 is set in a gradient manner, thereby contributing to improving the structural stability of the upper frame section 300.

[0082] Specifically, the upper frame section 300 is located on the furnace top platform 240. The size of the bottom section 301 is approximately 15m×9m, the size of the top section 303 is approximately 9m×9m, and the contraction section 302 gradually shrinks from 15m×9m to 9m×9m.

[0083] Of course, in other feasible embodiments, the designer can adjust the specific shape, structure and size of the upper frame section 300 according to the usage requirements, and no specific limitations are imposed here.

[0084] In the embodiment of the present utility model, as Figure 1 and Figure 2 shown in the embodiment, an installation structure 400 is provided on the upper frame section 300, and the installation structure 400 is used to install external devices. By providing the installation structure 400 on the upper frame section 300, it is convenient to install external devices by using the installation structure 400, thereby improving the usage convenience.

[0085] The designer can adjust the specific structure of the installation structure 400 according to the usage requirements, and no specific limitations are imposed here. For example, the installation structure 400 includes a top discharge platform and / or a mounting rack.

[0086] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for various purposes. The term "consisting essentially of" describing a combination should include the identified elements, components, parts or steps and other elements, components, parts or steps that do not substantially affect the basic novel features of the combination. Using the terms "comprising" or "including" to describe the combinations of elements, components, parts or steps herein also contemplates embodiments consisting essentially of these elements, components, parts or steps. By using the term "may" herein, it is intended that any of the attributes described as "may" include are optional. Multiple elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step can be divided into separate multiple elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, component, part or step does not mean to exclude other elements, components, parts or steps.

[0087] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and features of the present utility model, and the purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A furnace frame structure, characterized in that: include: A lower frame section, the lower frame section includes a plurality of lower frame columns and a first platform, the plurality of lower frame columns are arranged in a ring at intervals to form a lower frame, the first platform is located in the lower frame and is arranged on the top of the lower frame, and a first support member is arranged in the lower frame column; A middle frame section, the middle frame section comprises a plurality of middle frame columns and at least one second platform, the plurality of middle frame columns are arranged in a ring at intervals to form a middle frame, the second platform is located in the middle frame and connected to the middle frame, a second support is arranged in the middle frame column; a furnace top platform is arranged on the top of the middle frame; The upper frame section includes a plurality of upper frame columns and at least one third platform. The plurality of upper frame columns are arranged in a ring at intervals to form an upper frame. The third platform is located inside the upper frame and connected to the upper frame.

2. The furnace frame structure according to claim 1, characterized in that: The lower frame column comprises a lower steel pipe, the cross section of the lower frame column is circular, and the first support member is arranged in the inner cavity of the lower steel pipe.

3. The furnace frame structure according to claim 2, characterized in that: The inner cavity of the lower steel pipe is filled with concrete, and the concrete forms the first support member after solidification.

4. The furnace frame structure according to claim 2, characterized in that: The lower frame section further includes at least one lower support member, which is disposed between adjacent lower frame columns and connects the lower frame columns and / or the first platform.

5. The furnace frame structure according to claim 4, characterized in that: The lower support member comprises a lower support steel pipe, and the cross section of the lower support steel pipe is circular.

6. The furnace frame structure according to claim 2, characterized in that: The middle frame column comprises a middle steel pipe, the cross section of the middle frame column is circular, and the second support member is arranged in the inner cavity of the middle steel pipe.

7. The furnace frame structure according to claim 6, characterized in that: The middle steel pipe is arranged in one-to-one correspondence with the lower steel pipe, and the middle steel pipe and the corresponding lower steel pipe are arranged in an integrated manner.

8. The furnace frame structure according to claim 6, characterized in that: The inner cavity of the middle steel pipe is filled with concrete, and the concrete forms the second support member after solidification.

9. The furnace frame structure according to claim 6, characterized in that: The middle frame section further includes at least one middle support member, which is disposed between adjacent middle frame columns and connects the middle frame columns and / or the second platform.

10. The furnace frame structure according to claim 9, characterized in that: The middle support member comprises a middle support steel pipe, and the cross section of the middle support steel pipe is circular.

11. The furnace frame structure according to claim 6, characterized in that: The upper frame column comprises an upper steel pipe, and the cross section of the upper frame column is circular.

12. The furnace frame structure according to claim 11, characterized in that: The upper frame section further includes at least one upper support member, which is disposed between adjacent upper frame columns and connects the upper frame columns and / or the third platform.

13. The furnace frame structure according to claim 1, characterized in that: Along the height direction, the middle frame segment is located within the projection range of the lower frame segment, and the upper frame segment is located within the projection range of the middle frame segment.

14. The furnace frame structure according to claim 13, characterized in that: From bottom to top, the upper frame section includes a bottom section, a contraction section and a top section which are arranged in sequence, the bottom section is connected to the furnace top platform, and the contraction section is gradually contracted and connects the bottom section and the top section.

15. The furnace frame structure according to claim 1, characterized in that: The upper frame section is provided with a mounting structure, and the mounting structure is used for mounting external equipment.

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