Integral bustle pipe lifting and lowering device

Abstract

The utility model provides an overall bustle pipe lifting and lowering device. The overall bustle pipe lifting and lowering device comprises a positioning assembly, a lifting assembly and a lifting lug assembly. Wherein the lifting assembly comprises a driving mechanism and a lifting wire connected to the driving mechanism, the driving mechanism is positioned on a furnace stack frame beam through the positioning assembly, the lower end of the lifting wire is connected with the lifting lug assembly, and the end, away from the lifting wire, of the lifting lug assembly is connected with a bustle pipe to be operated. The overall bustle pipe lifting and lowering device provided by the utility model can solve the problems of large workload and high construction difficulty of the existing method for disassembling the bustle pipe of the large blast furnace.

Description

Technical Field

[0001] This utility model relates to the field of installation engineering technology, and more specifically, to a device for lifting and lowering an overall enclosure pipe. Background Technology

[0002] Currently, the renovation and construction cycle of large blast furnaces both domestically and internationally is generally short, with tight construction schedules. As an important component of the blast furnace body, the dismantling and installation of the hot blast cofferdam affects the construction progress of the blast furnace body and determines whether subsequent refractory lining and furnace drying can be carried out normally, directly impacting the commissioning time of the blast furnace system.

[0003] At present, the common method for dismantling the hot blast casing of a large blast furnace is aerial dismantling. That is, the casing is dismantled in sections while it is suspended, and then the casing is allowed to fall to the bottom operating platform by free fall. Workers then perform further processing on each section on the operating platform.

[0004] However, the existing method has certain drawbacks: First, to reduce the weight of the casing, the refractory material inside the casing needs to be manually removed, making the process cumbersome; second, the free-fall process is difficult to control and poses certain risks; in addition, the segmented removal method is time-consuming, affecting the overall progress. For some large and extra-large blast furnaces, due to the large diameter and heavy weight of their casing, the above-mentioned drawbacks will significantly increase the workload and construction difficulty.

[0005] Therefore, a solution is needed that can effectively reduce the workload and construction difficulty of dismantling and installing the hot blast casing of large blast furnaces. Utility Model Content

[0006] In view of the above problems, the purpose of this utility model is to provide a device for lifting and lowering the hot blast blast tube as a whole, so as to solve the problems of large workload and high construction difficulty in the existing method of dismantling the hot blast blast tube of large blast furnace.

[0007] The overall lifting and lowering device for the enclosure pipe provided by this utility model includes a positioning component, a lifting component, and a lifting lug component; wherein, the lifting component includes a driving mechanism and a lifting line connected to the driving mechanism, the driving mechanism is positioned on the furnace frame beam by the positioning component, the lower end of the lifting line is connected to the lifting lug component, and the end of the lifting lug component away from the lifting line is connected to the enclosure pipe to be operated.

[0008] Furthermore, in a preferred configuration, the positioning assembly includes a lifting beam fixed to the furnace frame beam, and the drive mechanism is disposed above the lifting beam; and...

[0009] A first through hole is provided on both sides of the lifting beam, and a lifting wire passes through each of the two first through holes. The upper ends of the two lifting wires are connected to the driving mechanism, and the lower ends of the two lifting wires are connected to the lifting lug assembly.

[0010] Furthermore, in a preferred configuration, the distance between the two first through holes is greater than the width of the furnace frame beam; and,

[0011] The two lifting lines are located on both sides of the furnace frame beam.

[0012] Furthermore, in a preferred configuration, the lifting lug assembly includes two symmetrical lifting lug main bodies, and the two lifting lines are respectively connected to the upper part of the corresponding lifting lug main body; and,

[0013] Connecting ears are movably connected to the lower part of the two main bodies of the lifting lugs, and the two connecting ears are respectively connected to the inner and outer sides of the enclosure tube to be operated.

[0014] Furthermore, in a preferred configuration, the drive mechanism includes a hydraulic lift, and the lifting line is a steel strand; wherein,

[0015] The upper end of the steel strand is connected to the hydraulic lifting machine.

[0016] Furthermore, a preferred structure is that an installation groove is formed on the upper part of the main body of the lifting lug, an anchor plate is provided in the installation groove, a second through hole is opened at the top of the installation groove, and the lower end of the steel strand extends into the installation groove through the second through hole and is connected to the anchor plate.

[0017] Furthermore, a preferred structure is that a first hinge hole is provided at the lower part of the main body of the lifting lug, and a second hinge hole is provided in the connecting lug. The connecting lug is movably connected to the main body of the lifting lug by means of a pin engaging the first hinge hole and the second hinge hole.

[0018] Furthermore, in a preferred configuration, both connecting lugs are made of steel; and,

[0019] The two connecting lugs are welded to the inner and outer sides of the enclosure tube to be operated.

[0020] Furthermore, a preferred structure is that reinforcing ribs are connected to the middle and both sides of the lifting beam.

[0021] Furthermore, a preferred configuration is that at least three of the aforementioned enclosure pipe lifting and lowering devices are used in conjunction; and,

[0022] The lifting and lowering devices for each enclosure pipe are evenly distributed around the enclosure pipe to be operated.

[0023] Compared with the prior art, the above-mentioned overall lifting and lowering device for the enclosure pipe according to this utility model has the following beneficial effects:

[0024] By rationally arranging multiple lifting points, the overall lifting and lowering devices for the hot air duct provided by this utility model are used in conjunction. With the help of positioning components, lifting components, and dedicated lifting lug components, the overall dismantling and lifting of the hot air duct is completed. Secondly, the overall lifting and lowering devices for the hot air duct provided by this utility model, through multiple mutually cooperating methods, have sufficient lifting force. Without removing the refractory material of the duct, the entire hot air duct can be smoothly lowered to the bottom platform, where dismantling and refractory material removal can be carried out, greatly improving construction safety. Furthermore, due to the improved working environment, machinery can be used instead of manual labor for refractory material removal, accelerating the construction progress. In addition, the overall lifting and lowering devices for the hot air duct provided by this utility model can be arranged during dismantling, not only completing the initial duct dismantling work but also enabling the overall lifting and installation of the new duct later. The overall dismantling and installation of the hot air duct can be completed in one setup, effectively improving construction efficiency. Attached Figure Description

[0025] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings and the contents of the claims, and with a more complete understanding of this invention.

[0026] In the attached diagram:

[0027] Figure 1 A perspective view of the lifting beam provided for an embodiment of this utility model;

[0028] Figure 2 An exploded enlarged view of one side structure of the lifting lug assembly provided in an embodiment of this utility model;

[0029] Figure 3 A perspective view of one side structure of the lifting lug assembly provided in an embodiment of the present utility model;

[0030] Figure 4 A diagram showing the connection relationship between the lifting lug assembly and the enclosure pipe to be operated, provided for an embodiment of this utility model;

[0031] Figure 5 The diagram shows the effect of the overall lifting and lowering device for the enclosure pipe provided in the embodiment of this utility model during actual use;

[0032] Figure 6 This diagram shows the distribution of multiple overall lifting and lowering devices for the enclosure pipes provided in the embodiments of this utility model during actual use.

[0033] Reference numerals in the attached drawings: 1. Lifting beam; 2. Reinforcing rib; 3. First through hole; 4. Main body of lifting lug; 41. First hinge hole; 5. Second through hole; 6. Mounting groove; 7. Pin; 8. Connecting lug; 81. Second hinge hole; 9. Lifting line; 10. Anchor plate; 11. Operating enclosure pipe; 12. Hydraulic hoist; 13. Furnace body frame beam.

[0034] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Implementation

[0035] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] Figure 1 The illustration shows the three-dimensional structure of the lifting beam provided in an embodiment of the present invention. Figure 2 The image shows an exploded magnified view of one side of the lifting lug assembly provided in an embodiment of the present invention. Figure 3 The diagram shows a three-dimensional structure of one side of the lifting lug assembly provided in an embodiment of the present invention. Figure 4 The diagram illustrates the connection relationship between the lifting lug assembly and the enclosure pipe to be operated, as provided in an embodiment of this utility model. Figure 5 This illustrates the effect of the overall lifting and lowering device for the enclosure pipe provided by an embodiment of the present invention in actual use. Figure 6 The diagram illustrates the distribution relationship of multiple overall lifting and lowering devices for the enclosure pipe provided in the embodiments of this utility model during actual use.

[0038] Combination Figures 1 to 6 As can be seen, the overall lifting and lowering device for the enclosure tube provided by this utility model includes a positioning component for positioning the lifting component, a lifting component for lifting the enclosure tube 11 to be operated, and a lifting lug component for connecting to the enclosure tube 11 to be operated.

[0039] Specifically, to realize the lifting function of the lifting assembly for lifting the enclosure pipe to be lifted, the lifting assembly includes a drive mechanism for providing lifting driving force and a lifting line 9 connected to the drive mechanism. The lifting line 9 is used to connect to the lifting lug assembly. In the actual installation process, the drive mechanism needs to be positioned on the furnace frame beam 13 through the positioning assembly. The furnace frame beam 13 is above the enclosure pipe to be lifted. The upper end of the lifting line 9 is connected to the drive mechanism, and the lower end of the lifting line 9 is connected to the lifting lug assembly. The end of the lifting lug assembly away from the lifting line 9 is connected to the enclosure pipe 11 to be operated, thereby realizing the lifting assembly in conjunction with the lifting lug assembly to lift (for installing the enclosure pipe) and lower (for disassembling the enclosure pipe) the enclosure pipe 11 to be operated.

[0040] Furthermore, to achieve the positioning effect of the positioning component on the drive mechanism, the positioning component includes a lifting beam 1 fixed at a preset position on the furnace frame beam 13, and the drive mechanism is set (can be directly fixed) above the lifting beam 1; and, to further improve the lifting stability of the enclosure pipe 11 to be operated, first through holes 3 are provided on both sides of the lifting beam 1, and lifting lines 9 pass through both first through holes 3. The distance between the two first through holes 3 is greater than the width of the furnace frame beam 13, so that the two lifting lines 9 can be located on both sides of the furnace frame beam 13. The upper ends of the two lifting lines 9 are connected to the drive mechanism, and the lower ends of the two lifting lines 9 are connected to the lifting lug assembly.

[0041] In a specific embodiment of this utility model, in order to realize the functional design of the lifting lug, the lifting lug assembly may include two symmetrical lifting lug main bodies 4, and two lifting lines 9 are respectively connected to the upper part of the corresponding lifting lug main body 4; and, connecting ears 8 are movably connected to the lower part of the two lifting lug main bodies 4, and the two connecting ears 8 are respectively connected to the inner and outer sides of the enclosure tube 11 to be operated.

[0042] Furthermore, to provide the necessary driving force to the drive mechanism, the drive mechanism may include a hydraulic hoist 12 (or other hoisting mechanisms, such as a hoisting motor). The hoisting line 9 may be made of steel strand (or wire rope, etc.). The upper end of the steel strand is connected to the hydraulic hoist 12, and the lower end is connected to the lifting lug assembly. To connect the lower end of the steel strand to the lifting lug assembly, a mounting groove 6 is formed in the upper part of the lifting lug body 4. An anchor plate 10 is provided in the mounting groove 6, and a second through hole 5 is provided in the top of the mounting groove 6. The lower end of the steel strand extends into the mounting groove 6 through the second through hole 5 and is connected to the anchor plate 10.

[0043] In one specific embodiment of the present invention, to achieve a movable connection between the main body 4 of the lifting lug and the connecting lug, a first hinge hole 41 is provided at the lower part of the main body 4 of the lifting lug, and a second hinge hole 81 is provided at the connecting lug 8. The connecting lug 8 is movably connected to the main body 4 of the lifting lug through a pin 7 engaging with the first hinge hole 41 and the second hinge hole 81. Furthermore, to achieve a fixed connection between the two connecting lugs 8 and the operating casing 11, the two connecting lugs 8 are made of steel, and are welded to the inner and outer sides of the operating casing 11 respectively.

[0044] In addition, to improve the support strength of the lifting beam 1, reinforcing ribs 2 can be connected to the middle and both sides of the lifting beam 1 to improve the support strength of the lifting beam 1.

[0045] It should be noted that the overall lifting and lowering device for the enclosure pipe provided by this utility model requires multiple (at least three) devices to be used in conjunction. In actual use, multiple overall lifting and lowering devices for the enclosure pipe 11 to be operated need to be evenly distributed around the enclosure pipe 11 to improve the overall lifting stability.

[0046] The following details the manufacturing and use of the overall lifting and lowering device for the enclosure pipe provided by this utility model, which mainly consists of four parts: manufacturing of the lifting beam 1, manufacturing of the lifting lug assembly, installation of the lifting lug assembly, and lowering and lifting of the enclosure pipe.

[0047] When fabricating the lifting beam 1, a box-shaped lifting beam 1 is made of steel plate. Based on the width of the furnace frame beam 13, two circular through holes are opened at both ends of the box-shaped lifting beam 1 as the first through holes 3 for installing the hydraulic hoist 12 and the steel strands. The distance between the first through holes 3 should be slightly larger than the width of the furnace frame beam 13 to ensure that the two steel strands pass through both sides of the furnace frame beam 13. In addition, reinforcing ribs 2 are installed in the middle and on both sides of the lifting beam 1 to ensure the stability of the lifting beam 1.

[0048] When making the lifting lug assembly, the main body 4 of the lifting lug is made of steel plate. A circular hole is opened at the top of the main body 4 for installing steel strands. Square holes are opened on both sides of the main body 4 to go straight into the interior as mounting grooves 6 for installing anchor plates 10. Connecting lugs 8 are made of steel plate. Two connecting lugs 8 in a group are welded to the inner and outer sides of the surrounding pipe respectively. A pin 7 is made to connect the main body 4 of the lifting lug and the connecting lug 8 with the hinge hole.

[0049] During the installation of the lifting lug assembly, first, the lifting beam 1 and the hydraulic lifting machine 12 are arranged, and the steel strand is lowered to the designated height using the hydraulic lifting machine 12; the steel strand passes through the first through hole 3 of the lifting lug body 4, and is locked to the steel strand by the anchor plate 10 installed in the mounting groove 6, thus completing the fixing of the lifting lug body 4; then, the connecting lugs 8 are arranged at multiple preset lifting points of the hot air duct ( Figure 5and Figure 6 The diagram shows 16 lifting points (divided into 8 groups), and the connecting lugs 8 are welded firmly to the hot air duct. Finally, the pins 7 are used to connect the main body 4 of the lifting lugs 4 to the connecting lugs 8 at each lifting point to complete the installation of all lifting lug components.

[0050] During the dismantling and lifting of the hot air duct, multiple lifting points on the hot air duct are hoisted using the overall lifting and lowering device provided by this utility model. All hydraulic lifting machines 12 execute the lowering command simultaneously, which can smoothly lower the hot air duct to the bottom platform, completing the overall dismantling of the hot air duct. After the new hot air duct is assembled, the lifting points are arranged in the same way, and all hydraulic lifting machines 12 execute the lifting command, which can smoothly lift the new hot air duct to the designated height, completing the overall installation of the new hot air duct.

[0051] As can be seen from the above specific embodiments, the overall lifting and lowering device for the enclosure pipe provided by this utility model has at least the following advantages:

[0052] 1. Compared to conventional aerial dismantling, the overall lifting and lowering device for the hot air duct provided by this invention can lower the entire hot air duct to the bottom platform, where dismantling can be completed. This effectively reduces construction difficulty and improves construction safety.

[0053] 2. In the existing solution, aerial dismantling requires manual removal of the refractory material inside the enclosure pipe to reduce the weight of the enclosure pipe; however, the enclosure pipe lifting and lowering device provided by this utility model can be used in combination with multiple devices, which has sufficient lifting force and does not require removal of the enclosure pipe refractory material; after being lowered to the bottom platform, machinery can be used to replace manual removal of the refractory material, thus speeding up the construction progress.

[0054] 3. The overall lifting and lowering device for the enclosure pipe provided by this utility model can be arranged during the dismantling process. The overall dismantling and installation of the hot air enclosure pipe can be completed in one arrangement, which can effectively improve construction efficiency.

[0055] 4. The overall lifting and lowering device for the hot air duct provided by this utility model can realize the overall dismantling and installation of the hot air duct, improve construction efficiency, ensure construction safety, and has strong practicality and high stability, and has great promotional value.

[0056] As per the above reference Figures 1 to 6 The overall lifting and lowering device for the enclosure pipe according to the present invention has been described by way of example. However, those skilled in the art should understand that various modifications can be made to the overall lifting and lowering device for the enclosure pipe proposed in the present invention without departing from the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A device for lifting and lowering an entire casing pipe, characterized in that, It includes a positioning component, a lifting component, and a lifting lug component; wherein, the lifting component includes a drive mechanism and a lifting line connected to the drive mechanism, the drive mechanism is positioned on the furnace frame beam by the positioning component, the lower end of the lifting line is connected to the lifting lug component, and the end of the lifting lug component away from the lifting line is connected to the casing to be operated.

2. The overall lifting and lowering device for the surrounding pipe as described in claim 1, characterized in that, The positioning assembly includes a lifting beam fixed to the furnace frame beam, and the drive mechanism is disposed above the lifting beam; and, A first through hole is provided on both sides of the lifting beam, and a lifting wire passes through each of the two first through holes. The upper ends of the two lifting wires are connected to the driving mechanism, and the lower ends of the two lifting wires are connected to the lifting lug assembly.

3. The overall lifting and lowering device for the surrounding pipe as described in claim 2, characterized in that, The distance between the two first through holes is greater than the width of the furnace frame beam; and, The two lifting lines are located on both sides of the furnace frame beam.

4. The overall lifting and lowering device for the surrounding pipe as described in claim 3, characterized in that, The lifting lug assembly includes two symmetrical lifting lug main bodies, and the two lifting lines are respectively connected to the upper part of the corresponding lifting lug main body; and... Connecting ears are movably connected to the lower part of the two main bodies of the lifting lugs, and the two connecting ears are respectively connected to the inner and outer sides of the enclosure tube to be operated.

5. The overall lifting and lowering device for the surrounding pipe as described in claim 4, characterized in that, The drive mechanism includes a hydraulic lift, and the lifting line is steel strand; wherein... The upper end of the steel strand is connected to the hydraulic lifting machine.

6. The overall lifting and lowering device for the surrounding pipe as described in claim 5, characterized in that, An installation groove is formed on the upper part of the main body of the lifting lug, an anchor plate is provided in the installation groove, a second through hole is provided at the top of the installation groove, and the lower end of the steel strand extends into the installation groove through the second through hole and is connected to the anchor plate.

7. The overall lifting and lowering device for the surrounding pipe as described in claim 6, characterized in that, A first hinge hole is provided at the lower part of the main body of the lifting lug, and a second hinge hole is provided in the connecting lug. The connecting lug is movably connected to the main body of the lifting lug by means of a pin engaging the first hinge hole and the second hinge hole.

8. The overall lifting and lowering device for the surrounding pipe as described in claim 7, characterized in that, Both of the aforementioned connecting lugs are made of steel; and, The two connecting lugs are welded to the inner and outer sides of the enclosure tube to be operated.

9. The overall lifting and lowering device for the surrounding pipe as described in any one of claims 2 to 8, characterized in that, Reinforcing ribs are connected to the middle and both sides of the lifting beam.

10. The overall lifting and lowering device for the surrounding pipe as described in claim 9, characterized in that, At least three of the aforementioned enclosure pipe lifting and lowering devices are used in conjunction; and... The lifting and lowering devices for each enclosure pipe are evenly distributed around the enclosure pipe to be operated.

Images