CN219567253U - Large-scale blast furnace segmentation promotes positioner - Google Patents
Large-scale blast furnace segmentation promotes positioner Download PDFInfo
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- CN219567253U CN219567253U CN202320326489.6U CN202320326489U CN219567253U CN 219567253 U CN219567253 U CN 219567253U CN 202320326489 U CN202320326489 U CN 202320326489U CN 219567253 U CN219567253 U CN 219567253U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The utility model relates to a large-scale blast furnace sectional lifting positioning device which comprises a blast furnace frame, a furnace shell upper section, four lifters, lifting beams, twelve lifters and twelve steel strands, wherein the lifting beams are arranged on the upper section of the furnace shell; the four lifters are at equal elevation and are arranged on the outer wall of the upper section of the furnace shell at equal interval angles relative to the center of the furnace shell, and three lifting grooves are formed at the outer ends of the lifters at equal interval angles; the lifting beam is arranged on the blast furnace frame beam and comprises four lifting plates, and three lifting holes are formed in each lifting plate; the upper ends of the twelve steel twisted wires penetrate through the lifting holes to be connected with the lifting machine, and the lower ends penetrate through the lifting grooves to be connected with the bottom of the lifting machine through the ground anchor. According to the utility model, the lifting grooves in the four lifters are used as twelve lower lifting hanging points, and the lifting holes in the lifting beams are used as corresponding twelve upper lifting hanging points to flip-chip the upper section, the middle section and the lower section of the furnace shell, so that the lifting positioning precision is ensured, and the team forming time and the installation quality of the upper section, the middle section and the lower section of the furnace shell are shortened.
Description
Technical Field
The utility model belongs to the technical field of blast furnace transformation, and particularly relates to a large-scale blast furnace sectional lifting positioning device.
Background
At present, many steel mills are energy-saving reconstruction, the original frame of the blast furnace is not changed, the blast furnace shell is removed and reconstructed, the upper part of a furnace base is removed and reconstructed, and the conventional technology is that the blast furnace shell is removed, and then the furnace base construction, the normal furnace shell installation, the cooling wall and the furnace body piping are carried out, so that the construction period is long, and at least 150 days are required. Because the blast furnace overhaul frame is not basically replaced, the hoisting construction is difficult, the space is limited, the furnace shell is generally constructed by adopting a bulk method and a pushing method, the construction work efficiency is low, the integral installation progress of the blast furnace is affected, and the construction period is delayed. Rapid overhaul of a blast furnace is a major trend, and how to shorten the construction period becomes a precondition that must be considered for overhaul, and assembly of a furnace shell becomes a key process affecting the construction period.
Disclosure of Invention
The utility model mainly aims to provide a large-scale blast furnace sectional lifting positioning device which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a large-scale blast furnace sectionally lifting and positioning device comprises
The blast furnace frame consists of a plurality of support columns and four blast furnace frame beams fixedly arranged at the tops of the support columns;
the upper section of the furnace shell is arranged at the bottom in the blast furnace frame;
the four lifters are of a fan-shaped structure, are of equal elevation and are fixedly arranged on the outer wall of the upper section of the furnace shell at equal intervals relative to the center of the furnace shell, three lifting grooves are formed in the outer end of each lifter at equal intervals, and the circle centers of twelve lifting grooves of the four lifters are distributed on a circle taking the center of the furnace shell as the circle center and the radius of the circle center is R1;
the lifting beam is fixedly arranged on the blast furnace frame beam and comprises four lifting plates which are fixedly connected into a rectangle, three lifting holes are formed in each lifting plate, twelve lifting holes in the four lifting plates correspond to the twelve lifting grooves, and the lifting holes are also formed in a circle with the center of a furnace shell as the center of a circle and the radius of R1;
twelve lifters corresponding to the twelve lifting holes and fixedly arranged above the lifting holes;
twelve steel strands, the upper end passes through the lifting hole and is connected with the lifting machine, and the lower end passes through the lifting groove and is connected with the bottom of the lifting machine through a ground anchor.
Preferably, the bottom of the lifter is provided with an anchor drop-proof plate.
Preferably, the lifter includes bottom plate and roof, and three lifting groove is seted up the outer end of bottom plate and roof, the bottom plate with fixedly connected with two curb plates, four first backup pads, three second backup pads, three third backup pad between the roof, two the curb plate sets up the both sides of bottom plate and roof, four the first backup pad sets up respectively in three the both sides of lifting groove, three the second backup pad and three the third backup pad set up respectively in three the inner of lifting groove is the cross and arranges, the earth anchor anticreep board sets up in the bottom of bottom plate, two curb plates, four first backup pads, three second backup pads, three third backup pads and earth anchor anticreep board constitute the assembly.
The utility model provides a large-scale blast furnace sectional lifting positioning device, which has the following beneficial effects that;
the lifting grooves in the four lifters are used as twelve lower lifting hanging points, the lifting holes in the lifting beams are used as corresponding twelve upper lifting hanging points to carry out inversion on the upper section, the middle section and the lower section of the furnace shell, meanwhile, the circle centers of the twelve lifting grooves and the lifting holes are distributed on a circle with the center of the furnace shell as the circle center and the radius of R1, so that the lifting positioning precision is ensured, the formation time and the installation quality of the upper section, the middle section and the lower section of the furnace shell are shortened, the construction period is shortened by 30 days, the control is about 118 days, in addition, one lifter is provided with three lower lifting points, the assembly time and the dismantling time are shortened, the four lifting plates in the lifting beams are fixedly installed together for modularization, the lifting beams are convenient to dismantle, and the lifting beams can be used for turnover and secondary for blast furnaces of the same type after the lifting beams are dismantled, and the construction period and the measure cost are shortened.
Drawings
FIG. 1 is a graph showing the distribution of lifting points of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
FIG. 3 is a top elevation view of a lower elevation lifting point floor plan of the present utility model;
FIG. 4 is a bottom elevation view of a lower elevation lifting point floor plan of the present utility model;
FIG. 5 is an enlarged view of the utility model at A in FIG. 4;
FIG. 6 is a schematic diagram of the structure of FIG. 1-1 of FIG. 3 according to the present utility model;
FIG. 7 is a schematic diagram of the structure of FIG. 2-2 of FIG. 3 in accordance with the present utility model;
FIG. 8 is a schematic view of the structure of a-a of FIG. 6 in accordance with the present utility model;
FIG. 9 is a schematic diagram of the structure of b-b of FIG. 8 in accordance with the present utility model.
In the figure: 1. a support column; 2. a blast furnace frame beam; 3. an upper section of the furnace shell; 4. a furnace shell middle section; 5. a lower section of the furnace shell; 6. a lifter; 61. a lifting groove; 7. a lifting plate; 71. lifting holes; 8. a hoist; 9. steel strand; 21. a top plate; 22. a side plate; 23. a first support plate; 24. a second support plate; 25. a third support plate; 26. a bottom plate; 27. an anchor drop-proof plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the present utility model.
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
1-9, a large-scale blast furnace sectional lifting positioning device comprises a blast furnace frame, a furnace shell upper section 3, four lifters 6, lifting beams, twelve lifting machines 8 and twelve steel strands 9, wherein the blast furnace frame consists of a plurality of support columns 1 and four blast furnace frame beams 2 fixedly arranged at the tops of the support columns 1; the upper furnace shell section 3 is arranged at the inner bottom of the blast furnace frame; the four lifters 6 are of a fan-shaped structure, are of equal elevation and are fixedly arranged on the outer wall of the upper section 3 of the furnace shell at equal intervals relative to the center of the furnace shell, three lifting grooves 61 are formed in the outer end of the lifter 6 at equal intervals, and the circle centers of twelve lifting grooves 61 of the four lifters 6 are distributed on a circle taking the center of the furnace shell as the circle center and having the radius R1; the lifting beam is fixedly arranged on the blast furnace frame beam 2, the lifting beam comprises four lifting plates 7, the four lifting plates 7 are fixedly connected into a rectangle, three lifting holes 71 are formed in each lifting plate 7, twelve lifting holes 71 in the four lifting plates 7 correspond to the twelve lifting grooves 61, and the lifting beam is also arranged on a circle with the center of a furnace shell as the center of a circle and the radius of R1; twelve lifters 8 are corresponding to the twelve lifting holes 71 and fixedly arranged above the lifting holes 71; the upper ends of the twelve steel strands 9 penetrate through the lifting holes 71 to be connected with the lifting machine 8, and the lower ends penetrate through the lifting grooves 61 to be connected with the bottom of the lifting machine 6 through ground anchors.
In a specific embodiment, the bottom of the lifter 6 is provided with an anchor drop-preventing plate 27 to prevent the anchor from dropping off.
In a specific embodiment, the lifter 6 includes a bottom plate 26 and a top plate 21, three lifting grooves 61 are formed at outer ends of the bottom plate 26 and the top plate 21, two side plates 22, four first support plates 23, three second support plates 24, and three third support plates 25 are fixedly connected between the bottom plate 26 and the top plate 21, two side plates 22 are disposed at two sides of the bottom plate 26 and the top plate 21, four first support plates 23 are disposed at two sides of the three lifting grooves 61, three second support plates 24 and three third support plates 25 are disposed at inner ends of the three lifting grooves 61 respectively, and are disposed in a cross arrangement, and the ground anchor anti-falling plate 27 is disposed at the bottom of the bottom plate 26, and the bottom plate 26, the two side plates 22, the four first support plates 23, the three second support plates 24, the three third support plates 25, and the ground anchor anti-falling plate 27 form an assembly.
The utility model also provides a use method of the large-scale blast furnace sectional lifting positioning device, which is applied to offline installation of a blast furnace shell while the original frame of the blast furnace is not changed, and adopts a method for dividing a new blast furnace shell into an upper furnace shell section 3, a middle furnace shell section 4 and a lower furnace shell section 5 for flip-chip mounting from top to bottom, and specifically comprises the following steps:
s1, conveying and sliding the upper section 3 of the furnace shell to the inner bottom of a blast furnace frame through the conveying of an SPMT (specific pathogen free) module vehicle and the sliding operation of a hydraulic sliding system, marking the positions right below a furnace body installation projection at the elevation positions of the upper section 3 of the furnace shell, which are required to be provided with lifters 6, at first, marking 0 degrees, 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 270 degrees and 315 degrees of the furnace shell, fixedly installing the equal elevations of four lifters 6 on the outer wall of the upper section 3 of the furnace shell at equal intervals relative to the center of the furnace shell, specifically, arranging the bottom elevation positions of the lifters 6 at the hanging support positions of the steel bricks of the furnace throat, arranging the middle lifting grooves 61 of the four lifters 6 at the positions of 45 degrees, 135 degrees, 225 degrees and 315 degrees respectively, and simultaneously ensuring that the circle centers of twelve lifting grooves 61 in the four lifters 6 are distributed on a circle with the center of the furnace shell as the center and the radius R1.
Specifically, in this step, the two side plates 22, the four first support plates 23, the three second support plates 24, the three third support plates 25 and the ground anchor anti-drop plate 27 are welded on the bottom plate 26 to form an assembly, the welding quality and the size of the assembly are checked, the assembly is shipped after passing, the assembly is positioned at the elevation on the assembly site, the angle of the lifting groove 61 and the R1 size are guaranteed to be welded on the outer wall of the upper section 3 of the furnace shell, the welding quality and the re-measured positioning size are guaranteed after welding the assembly, the welding top plate 21 is assembled after passing, the center of the lifting groove 61 of the top plate 21 is guaranteed to be perpendicular to the center of the lifting groove 61 of the assembly, the allowable deviation is smaller than 3mm, the bottom of the bottom plate 26 is at the bottom elevation position, and the top of the top plate 21 is at the top standard height position.
And S2, after the four lifters 6 are installed and welded, detecting the bottom elevation size, the R1 size, the verticality of the center of the lifting groove 61, the corresponding angle relative to the center of the furnace shell and the welding quality as a whole.
S3, mounting the lifting beam on the reinforced blast furnace frame beam 2, placing four lifting plates 7 at corresponding positions through a furnace top crane and a chain block, firstly adjusting elevation, ensuring that the centers of the lifting holes 71 are on the circumference of the same radius R1, ensuring the angles of the central positions of the lifting holes 71 relative to the furnace shell, and determining the centers and corresponding degrees of the furnace shell according to the furnace base and the blast furnace frame, so that twelve lifting holes 71 correspond to twelve lifting grooves 61 in position, and the twelve lifting holes 71 serve as twelve upper lifting hanging points.
In this step, the four lifting plates 7 are connected to form a lifting beam by high-strength bolts after being positioned, the lifting beam is modularized and mounted on the blast furnace frame, and the lifting beam is re-measured in size after being assembled, and is used after meeting the requirement.
S4, fixedly installing a lifter 8 above the lifting hole 71, connecting the upper end of the steel strand 9 with the lifter 8 through the lifting hole 71, connecting the lower end of the steel strand through the lifting groove 61 with the bottom of the lifter 6 through a ground anchor, adopting flexible steel strand bearing, computer control and hydraulic synchronous lifting technology, and debugging lifting equipment after the steel strand bearing, the computer control and the hydraulic synchronous lifting technology are installed;
and S5, lifting the upper furnace shell section 3 to a designated elevation (the lifting height is about the height of the middle furnace shell section 4), wherein the lifting height of the upper furnace shell section 3 needs to ensure that the clearance between the transported middle furnace shell section 4 and the upper furnace shell section 3 is about 100mm, and the interference between the two furnace shells is not caused.
S6, conveying and sliding the furnace shell middle section 4 to a position right below the furnace body installation projection through the conveying of the SPMT module vehicle and the sliding operation of the hydraulic sliding system, after the furnace shell middle section 4 is conveyed to a designated position, lowering the furnace shell upper section 3 by about 100mm, butting with the furnace shell middle section 4, finely adjusting the height of the shell upper section by utilizing the lifting machine 8, finely adjusting the height and the horizontal direction of the furnace shell middle section 4 by utilizing the sliding system, and temporarily fixing clamping plates between the two sections after the adjustment is completed, and performing welding operation.
And S7, lifting the welded furnace shell upper section 3 and furnace shell middle section 4 to a specified elevation (the lifting height is about the height of the furnace shell lower section 5), wherein the lifting height of the furnace shell upper section 3 and furnace shell middle section 4 is required to ensure that the clearance between the transported furnace shell lower section 5 and the furnace shell upper section 3 and furnace shell middle section 4 is about 100mm, and the interference between the furnace shells of the two sections is less.
S8, transporting and sliding the lower furnace shell section 5 to a position right below the installation projection of the furnace body through the transportation of the SPMT module vehicle and the sliding operation of the hydraulic sliding system, after the lower furnace shell section 5 is transported to a designated position, lowering the upper furnace shell section 3 and the middle furnace shell section 4 by about 100mm, butting with the lower furnace shell section 5, simultaneously carrying out fine adjustment on the heights of the upper shell section and the middle furnace shell section 4 by using the lifting machine 8, carrying out fine adjustment on the height and the horizontal direction of the lower furnace shell section 5 by using the sliding system, and carrying out temporary fixing on a clamping plate between the two sections after the adjustment is finished, and carrying out welding operation.
S9, the hoister 8 is subjected to graded unloading until the steel stranded wires 9 are completely loosened, the load is transferred to the foundation, and temporary lifting and sliding measures are removed, so that the installation of the furnace shell is completed.
According to the utility model, the lifting grooves 61 in the four lifters 6 are used as twelve lower lifting hanging points, the lifting holes 71 in the lifting beams are used as corresponding twelve upper lifting hanging points to carry out inversion on the upper furnace shell section 3, the middle furnace shell section 4 and the lower furnace shell section 5, meanwhile, the circle centers of the twelve lifting grooves 61 and the lifting holes 71 are distributed on a circle with the center of the furnace shell as the circle center, the radius is R1, the lifting positioning precision is ensured, the team forming time and the installation quality of the upper furnace shell section 3, the middle furnace shell section 4 and the lower furnace shell section 5 are shortened, the construction period is shortened by 30 days and is controlled to be about 118 days, in addition, one lifter 6 is provided with three lower lifting points, the assembly time and the disassembly time are shortened, and the four lifting plates 7 in the lifting beams are fixedly installed together for modularization, so that the lifting beams are convenient to disassemble, and the lifting beams can be used for turnover and secondary for the same type of blast furnace, and the construction period and the measure cost are shortened.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (3)
1. The utility model provides a large-scale blast furnace segmentation promotes positioner which characterized in that: comprising
The blast furnace frame consists of a plurality of support columns and four blast furnace frame beams fixedly arranged at the tops of the support columns;
the upper section of the furnace shell is arranged at the bottom in the blast furnace frame;
the four lifters are of a fan-shaped structure, are of equal elevation and are fixedly arranged on the outer wall of the upper section of the furnace shell at equal intervals relative to the center of the furnace shell, three lifting grooves are formed in the outer end of each lifter at equal intervals, and the circle centers of twelve lifting grooves of the four lifters are distributed on a circle taking the center of the furnace shell as the circle center and the radius of the circle center is R1;
the lifting beam is fixedly arranged on the blast furnace frame beam and comprises four lifting plates which are fixedly connected into a rectangle, three lifting holes are formed in each lifting plate, twelve lifting holes in the four lifting plates correspond to the twelve lifting grooves, and the lifting holes are also formed in a circle with the center of a furnace shell as the center of a circle and the radius of R1;
twelve lifters corresponding to the twelve lifting holes and fixedly arranged above the lifting holes;
twelve steel strands, the upper end passes through the lifting hole and is connected with the lifting machine, and the lower end passes through the lifting groove and is connected with the bottom of the lifting machine through a ground anchor.
2. The large-scale blast furnace sectional lifting positioning device according to claim 1, wherein: the bottom of the lifter is provided with an anchor drop-proof plate.
3. The large-scale blast furnace sectional lifting positioning device according to claim 2, wherein: the lifter comprises a bottom plate and a top plate, wherein three lifting grooves are formed in the outer ends of the bottom plate and the top plate, two side plates, four first support plates, three second support plates and three third support plates are fixedly connected between the bottom plate and the top plate, two side plates are arranged on two sides of the bottom plate and the top plate, four first support plates are respectively arranged on three sides of the lifting grooves, three second support plates and three third support plates are respectively arranged on the inner ends of the lifting grooves and are arranged in a cross mode, and an anchor anti-falling plate is arranged at the bottom of the bottom plate, and an assembly is formed by the bottom plate, the two side plates, the four first support plates, the three second support plates, the three third support plates and the anchor anti-falling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320326489.6U CN219567253U (en) | 2023-02-27 | 2023-02-27 | Large-scale blast furnace segmentation promotes positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320326489.6U CN219567253U (en) | 2023-02-27 | 2023-02-27 | Large-scale blast furnace segmentation promotes positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219567253U true CN219567253U (en) | 2023-08-22 |
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ID=87662036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320326489.6U Active CN219567253U (en) | 2023-02-27 | 2023-02-27 | Large-scale blast furnace segmentation promotes positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219567253U (en) |
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2023
- 2023-02-27 CN CN202320326489.6U patent/CN219567253U/en active Active
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