Blast furnace shell pushing and mounting device

Abstract

The utility model relates to a blast furnace shell pushing and installing device which comprises three groove type sliding rails, the three groove type sliding rails are laid on the ground and extend to a furnace shell installing center, two sliding jacks are installed on each groove type sliding rail in a sliding mode, the tops of the six sliding jacks jointly support a prefabricated furnace foundation, and the prefabricated furnace foundation is arranged on the ground. Three grooves are correspondingly formed in the bottom of the prefabricated furnace foundation in a penetrating mode, the groove type sliding rails and the sliding type jacks are located in the grooves, the tops of the grooves are supported by the tops of the sliding type jacks, and the furnace shell lower section is installed on the top of the prefabricated furnace foundation. When an old furnace shell is produced, the lower section of the furnace shell is installed on the prefabricated furnace foundation, and when the furnace shell is formally replaced, the prefabricated furnace foundation and the lower section of the furnace shell can be moved to a furnace shell installation center to be installed and fixed through the groove type sliding rail and the sliding jack. Compared with traditional furnace shell replacement, the time for pouring and maintaining new furnace foundation concrete is saved, and the overall construction period of blast furnace shell replacement is greatly shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of furnace shell installation, in particular to a blast furnace shell pushing and installing device. Background Art

[0002] As the blast furnace system is approaching the end of its service life, it needs to be renovated and upgraded to ensure stable and safe operation. As the main line project of the blast furnace system renovation and upgrading, the replacement of the blast furnace shell directly affects the commissioning time of the blast furnace system.

[0003] At present, when replacing the blast furnace shell, it is necessary to first dismantle the old furnace shell and the old furnace foundation, and then construct the new furnace foundation. Only after the concrete pouring and maintenance of the new furnace foundation are completed can the new furnace shell be installed in sections on the new furnace foundation. The pouring and maintenance of the concrete of the new furnace foundation takes a long time, which leads to the overall construction period of the blast furnace shell replacement is still relatively long. Therefore, further optimization is needed in the blast furnace shell replacement construction to shorten the construction period. Utility Model Content

[0004] The main purpose of the utility model is to propose a blast furnace shell pushing and installing device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A blast furnace shell sliding installation device comprises three trough-type sliding rails, which are laid on the ground and extend to the installation center of the furnace shell, two sliding jacks are slidably installed on each of the trough-type sliding rails, the tops of the six sliding jacks jointly support a prefabricated furnace foundation, three grooves are correspondingly formed through the bottom of the prefabricated furnace foundation, the trough-type sliding rails and the sliding jacks are located in the grooves, the tops of the sliding jacks support the tops of the grooves, and the top of the prefabricated furnace foundation is installed with a furnace shell lower section.

[0007] Preferably, the prefabricated furnace foundation comprises a concrete coating layer and a rigid frame, and the rigid frame is coated in the concrete coating layer.

[0008] Preferably, the rigid skeleton includes an upper frame, a plurality of steel structure columns are fixed to the bottom of the upper frame, the upper frame includes an octagonal steel structure frame, a plurality of cross-arranged transverse steel structure beams and vertical steel structure beams are fixed inside the steel structure frame, and the plurality of transverse steel structure beams and vertical steel structure beams form a plurality of grids.

[0009] Preferably, the three grooves are respectively opened directly below the three vertical steel structure beams.

[0010] Preferably, the steel structure columns, steel structure frames, transverse steel structure beams, and vertical steel structure beams are all H-shaped steels.

[0011] Preferably, steel bars are fixed in the grid.

[0012] The utility model provides a blast furnace shell pushing and installing device, which has the following beneficial effects:

[0013] When the old furnace shell of the utility model is still in production, the lower section of the furnace shell has been installed on the prefabricated furnace foundation. When the furnace shell is formally replaced, the prefabricated furnace foundation and the lower section of the furnace shell can be moved to the furnace shell installation center for installation and fixation through the grooved sliding track and the sliding jack. Compared with the traditional furnace shell replacement, it saves the time for pouring concrete and maintaining the new furnace foundation, and greatly shortens the overall construction period of the blast furnace shell replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the push-installation device of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the prefabricated furnace foundation of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the rigid skeleton of the utility model;

[0017] Figure 4 It is a schematic diagram of the installation structure of the prefabricated furnace foundation and the lower section of the furnace shell of the utility model.

[0018] In the figure: 1. trough type sliding track; 2. sliding jack; 3. prefabricated furnace foundation; 31. concrete covering layer; 32. rigid skeleton; 321. upper frame; 3211. steel structure frame; 3212. horizontal steel structure beam; 3213. vertical steel structure beam; 322. steel structure column; 4. groove; 5. lower section of furnace shell. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the utility model.

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Examples, such as Figure 1-4 As shown, a blast furnace shell sliding installation device comprises three trough-type sliding rails 1, which are laid on the ground and extend to the installation center of the furnace shell, and two sliding jacks 2 are slidably installed on each of the trough-type sliding rails 1, and the tops of the six sliding jacks 2 jointly support a prefabricated furnace foundation 3, and the bottom of the prefabricated furnace foundation 3 has three grooves 4 correspondingly formed therethrough, and the trough-type sliding rails 1 and the sliding jacks 2 are located in the grooves 4, and the tops of the sliding jacks 2 support the tops of the grooves 4, and the top of the prefabricated furnace foundation 3 is installed with a furnace shell lower section 5.

[0024] The working principle of the utility model is as follows: the furnace shell is generally divided into two sections, the upper and lower sections, for push-installation. When the old furnace shell is still in production, the prefabricated furnace foundation 3 has been manufactured, and the furnace shell lower section 5 is assembled on the prefabricated furnace foundation 3 and the matching cooling wall is installed. Then, a grooved sliding track 1 is laid in the three grooves 4 of the prefabricated furnace foundation 3 and a sliding jack 2 (sliding shoe) is installed on the grooved sliding track 1. When the furnace shell is formally replaced, the old furnace shell and the old furnace foundation are removed. The sliding jack 2 lifts up the prefabricated furnace foundation 3 and the furnace shell lower section 5 at the same time, slides on the grooved sliding track 1 to push the prefabricated furnace foundation 3 and the furnace shell lower section 5 to the furnace shell installation center and then puts them down. After the prefabricated furnace foundation 3 and the ground foundation of the furnace shell installation center are fixed, the furnace shell upper section can be installed.

[0025] When the old furnace shell of the utility model is still in production, the lower section 5 of the furnace shell has been installed on the prefabricated furnace foundation 3. When the furnace shell is officially replaced, the prefabricated furnace foundation 3 and the lower section 5 of the furnace shell can be moved to the furnace shell installation center for installation and fixation through the grooved sliding track 1 and the sliding jack 2. Compared with the traditional furnace shell replacement, the time for pouring concrete and maintaining the new furnace foundation is saved, which greatly shortens the overall construction period of the blast furnace shell replacement.

[0026] In a specific embodiment, the prefabricated furnace foundation 3 includes a concrete covering layer 31 and a rigid frame 32. The rigid frame 32 is covered in the concrete covering layer 31. After the rigid frame 32 is manufactured, formwork is supported and concrete is poured. The concrete covering layer 31 and the rigid frame 32 form a rigid concrete structure. Compared with the reinforced concrete structure used in the traditional furnace foundation, the rigid concrete structure has a higher bearing capacity and greater rigidity. While meeting the bearing capacity of the furnace shell, it can also meet the concentrated stress of multi-point support during movement.

[0027] In a specific embodiment, the rigid skeleton 32 includes an upper frame 321, a plurality of steel structure columns 322 are fixed to the bottom of the upper frame 321, the upper frame 321 includes an octagonal steel structure frame 3211, the octagonal structure is similar to the circular structure and is adapted to the shape of the furnace shell, a plurality of cross-arranged transverse steel structure beams 3212 and vertical steel structure beams 3213 are fixed in the steel structure frame 3211, and the plurality of transverse steel structure beams 3212 and vertical steel structure beams 3213 form a plurality of grids.

[0028] In a specific embodiment, the three grooves 4 are respectively opened directly below the three vertical steel structure beams 3213, so that the sliding jack 2 is supported at the vertical steel structure beams 3213 when lifting the prefabricated furnace foundation 3, thereby ensuring the strength of the supporting points of the prefabricated furnace foundation 3. For example, in this embodiment, there are five transverse steel structure beams 3212 and five vertical steel structure beams 3213, and the three grooves 4 are respectively opened directly below the first, third, and fifth vertical steel structure beams 3213.

[0029] In a specific embodiment, the steel structure columns 322, the steel structure frames 3211, the transverse steel structure beams 3212, and the vertical steel structure beams 3213 are all H-shaped steels.

[0030] In a specific embodiment, steel bars are fixed in the grid to further improve the strength of the prefabricated furnace foundation 3 .

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A blast furnace shell pushing and installing device, characterized in that: It comprises three trough-type sliding rails, which are laid on the ground and extend to the installation center of the furnace shell, two sliding jacks are slidably installed on each of the trough-type sliding rails, the tops of the six sliding jacks jointly support a prefabricated furnace foundation, three grooves are correspondingly opened at the bottom of the prefabricated furnace foundation, the trough-type sliding rails and the sliding jacks are located in the grooves, the tops of the sliding jacks support the tops of the grooves, and the top of the prefabricated furnace foundation is installed with the lower section of the furnace shell.

2. A blast furnace shell pushing and installing device according to claim 1, characterized in that: The prefabricated furnace foundation comprises a concrete covering layer and a rigid frame, wherein the rigid frame is covered in the concrete covering layer.

3. A blast furnace shell pushing and installing device according to claim 2, characterized in that: The rigid skeleton includes an upper frame, a plurality of steel structure columns are fixed at the bottom of the upper frame, the upper frame includes an octagonal steel structure frame, a plurality of cross-arranged transverse steel structure beams and vertical steel structure beams are fixed in the steel structure frame, and the plurality of transverse steel structure beams and vertical steel structure beams form a plurality of grids.

4. A blast furnace shell pushing and installing device according to claim 3, characterized in that: The three grooves are respectively opened directly below the three vertical steel structure beams.

5. The blast furnace shell pushing and installing device according to claim 3, characterized in that: The steel structure columns, steel structure frames, transverse steel structure beams and vertical steel structure beams are all H-shaped steels.

6. The blast furnace shell pushing and installing device according to claim 3, characterized in that: Steel bars are fixed in the grid.

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