Mounting device for corrugated branch pipe of blast furnace

Abstract

The utility model provides a mounting device for a corrugated branch pipe of a blast furnace. The mounting device comprises a supporting frame, an auxiliary bracket and a moving part, a connecting disc is arranged at the top of the supporting frame and used for being fixedly connected with the bottom of the corrugated branch pipe. An arc-shaped support is arranged at the top of the auxiliary support and used for abutting against the top of the corrugated branch pipe. The moving part is arranged at the bottom of the supporting frame and used for moving the supporting frame to a preset position; a lifting part is arranged on the top face of the moving part and used for adjusting the height of the supporting frame to the preset height. Through the arrangement of the supporting frame, supporting force can be provided in the dismounting or mounting process, the corrugated branch pipe is prevented from being in a suspended state, and the replacement difficulty is reduced. And through the arrangement of the lifting part, the height of the corrugated branch pipe is adjusted, installation is convenient, and the installation efficiency is improved. And through the arrangement of the moving part, a new corrugated branch pipe or an old corrugated branch pipe can be moved, and movement can be conveniently completed under the condition of limited space.

Description

Technical Field

[0001] This application relates to the field of metallurgical blast furnace technology, and more specifically, to an installation device for a blast furnace corrugated branch pipe. Background Technology

[0002] During blast furnace operation, hot air from the hot blast duct is fed into the corrugated branch pipes. Because the temperature of the hot air fed into the corrugated branch pipes can reach as high as 1400℃, the corrugated branch pipes are prone to damage under prolonged continuous high-temperature conditions. If air leakage occurs in the corrugated branch pipes, a temporary shutdown must be implemented immediately to replace the corrugated branch pipes.

[0003] In existing technology, a hand-operated chain hoist is used to move corrugated branch pipes. However, due to the confined space and numerous pipelines at the location of the corrugated branch pipes, moving them in and out can be difficult. Furthermore, because the corrugated branch pipes are suspended in mid-air for extended periods during replacement, difficulties arise in aligning flanges during the dismantling of old equipment and the installation of new equipment. This requires multiple adjustments to the hand-operated chain hoist, which is time-consuming, labor-intensive, and reduces work efficiency.

[0004] In summary, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this application is to provide an installation device for a blast furnace corrugated branch pipe, which can assist in the replacement of the corrugated branch pipe.

[0006] This application provides an installation device for a blast furnace corrugated branch pipe, including a support frame, an auxiliary support, and a movable part. A connecting plate is provided at the top of the support frame, which is used for fixed connection to the bottom of the corrugated branch pipe. The auxiliary support is fixedly connected to the side of the support frame and extends upward. An arc-shaped support is provided at the top of the auxiliary support, which is arranged laterally and abuts against the top of the corrugated branch pipe. The movable part is located at the bottom of the support frame and is used to move the support frame to a predetermined position. A lifting part is provided on the top surface of the movable part, which is used to connect to the bottom surface of the support frame and to adjust the height of the support frame to a predetermined height.

[0007] In one feasible embodiment, the connecting plate is provided with mounting holes for fixed connection with flange holes on the connecting flange of the corrugated branch pipe by fastening bolts.

[0008] In one feasible embodiment, the connecting plate is fixedly connected to the top surface of the support frame via a plurality of connecting legs.

[0009] In one feasible embodiment, the mounting holes include at least a first mounting hole and a second mounting hole, both of which are elongated holes, and the arrangement direction of the first mounting hole is perpendicular to the mounting direction of the second mounting hole.

[0010] In one feasible embodiment, a diagonal brace is provided between the auxiliary support and the support frame, with one end of the diagonal brace fixedly connected to the top of the auxiliary support and the other end of the diagonal brace fixedly connected to the top surface of the support frame.

[0011] In one feasible approach, two diagonal braces are provided between the auxiliary support and the support frame.

[0012] In one feasible embodiment, the lifting unit is a scissor structure, comprising at least a first link, a second link, and a hydraulic cylinder;

[0013] The first and second links are hinged at the middle, and the bottom of the first and second links is hinged to the top surface of the moving part. A lifting plate is provided at the top of the first and second links. After the lifting plate rises, it abuts against the bottom surface of the support frame. The bottom of the hydraulic cylinder is fixedly connected to the top surface of the moving part, and the free end of the cylinder rod of the hydraulic cylinder is connected to the bottom surface of the support frame.

[0014] In one feasible embodiment, the lifting unit is a lead screw structure, which includes at least a rotating motor, a rotating gear, and a connecting rack;

[0015] The rotating motor is fixedly connected to the top surface of the moving part, and the output shaft of the rotating connection is fixedly connected to the rotating gear to control the forward or reverse rotation of the rotating gear. The connecting rack is arranged vertically, and a lifting plate is provided at the top of the connecting rack. After the lifting plate rises, it abuts against the bottom surface of the support frame, and the connecting rack meshes with the rotating gear.

[0016] In one feasible embodiment, a telescopic shaft is provided between the bottom surface of the support frame and the top surface of the movable part.

[0017] It should be noted that the support frame and the moving part are coaxially arranged, and both ends of the telescopic shaft are connected to the axes of the support frame and the moving part, respectively. The telescopic shaft ensures the stability of the support frame during lifting and lowering.

[0018] Compared with the prior art, the beneficial effects of this application are as follows:

[0019] In the technical solution of this application, the support frame provides support during disassembly or installation, preventing the corrugated branch pipe from being suspended and reducing replacement difficulty. The lifting mechanism allows for height adjustment of the corrugated branch pipe, facilitating installation and improving efficiency. The movable mechanism allows for the movement of new or old corrugated branch pipes, enabling movement even in space-constrained conditions. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the installation device for the corrugated branch pipe of the blast furnace according to an embodiment of the present utility model.

[0021] Figure 2 This is a left view of the support frame in the installation device for the corrugated branch pipe of the blast furnace according to an embodiment of the present invention.

[0022] Figure 3 This is a front view of the support frame in the installation device for the corrugated branch pipe of the blast furnace according to an embodiment of the present invention.

[0023] Figure 4 This is a top view of the connecting plate in the installation device of the blast furnace corrugated branch pipe according to an embodiment of this utility model.

[0024] The reference numerals in the attached figures are explained as follows:

[0025] 1. Moving part; 2. Lifting part; 3. Support frame; 4. Auxiliary bracket; 5. Diagonal brace; 6. Connecting plate; 7. Connecting leg; 8. Arc-shaped bracket; 9. First mounting hole; 10. Second mounting hole. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0027] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "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. They 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 on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0030] See Figures 1 to 4 This application provides an installation device for a blast furnace corrugated branch pipe, comprising:

[0031] A support frame 3 is provided with a connecting plate 6 at its top, which is used to fix the connection to the bottom of the corrugated branch pipe.

[0032] The auxiliary bracket 4 is fixedly connected to the side of the support frame 3 and extends upward; as shown... Figure 2 and Figure 3 As shown, the top of the auxiliary support 4 is provided with an arc-shaped support 8, which is arranged in a transverse direction and is used to abut against the top of the corrugated branch pipe. The arc-shaped support 8 can prevent the corrugated branch pipe from being worn, and can limit the top of the corrugated branch pipe to prevent the top of the corrugated branch pipe from sliding out of the arc-shaped support 8.

[0033] A movable part 1 is provided at the bottom of the support frame 3 and is used to move the support frame 3 to a predetermined position; a lifting part 2 is provided on the top surface of the movable part 1, the lifting part 2 is used to connect with the bottom surface of the support frame 3, and the lifting part 2 is used to adjust the height of the support frame 3 to a predetermined height.

[0034] This application provides an installation device for a blast furnace corrugated branch pipe. When replacing the corrugated branch pipe, the old corrugated branch pipe is connected to the connecting plate 6 and then removed. The new corrugated branch pipe is then installed onto the connecting plate 6 and moved to a predetermined position by the moving part 1 for installation. The support frame 3 provides support during disassembly or installation, preventing the corrugated branch pipe from being suspended and reducing replacement difficulty. The lifting part 2 adjusts the height of the corrugated branch pipe, facilitating installation and improving efficiency. The moving part 1 allows for the movement of either the new or old corrugated branch pipe, making movement easier even in space-constrained conditions.

[0035] In one feasible embodiment, the connecting plate 6 is provided with mounting holes for fixed connection with flange holes on the connecting flange of the corrugated branch pipe by fastening bolts.

[0036] It should be noted that the connecting plate 6 is connected to the top surface of the support frame 3 by multiple fixed connections. The gap formed between two adjacent connecting legs 7 facilitates the removal of the fastening bolts.

[0037] In one feasible approach, such as Figure 4 As shown, the mounting holes include at least a first mounting hole 9 and a second mounting hole 10. Both the first mounting hole 9 and the second mounting hole 10 are elongated holes, and the arrangement direction of the first mounting hole 9 is perpendicular to the installation direction of the second mounting hole 10. The installation position of the fastening bolts in the elongated holes is adjusted according to the pipe diameter of the corrugated branch pipe, so that this application can be adapted to the installation of corrugated branch pipes of various diameters, increasing the scope of application of this application and meeting various installation needs.

[0038] In one feasible embodiment, a diagonal brace 5 is provided between the auxiliary support 4 and the support frame 3. One end of the diagonal brace 5 is fixedly connected to the top of the auxiliary support 4, and the other end of the diagonal brace 5 is fixedly connected to the top surface of the support frame 3. By providing the diagonal brace 5, the connection strength between the auxiliary support 4 and the support frame 3 can be increased, and the pressure exerted by the corrugated branch pipe on the auxiliary support 4 can be balanced.

[0039] It should be noted that two diagonal braces 5 are installed between the auxiliary bracket 4 and the support frame 3 to further increase the stability of the structure and ensure the smooth progress of the replacement work.

[0040] It should also be noted that the angle between the diagonal brace 5 and the horizontal plane is 45°-70°.

[0041] Specifically, as shown in the figure, in this embodiment, the angle between the diagonal brace 5 and the horizontal plane is 65°.

[0042] In one feasible embodiment, the lifting unit 2 is a scissor structure, comprising at least a first link, a second link, and a hydraulic cylinder.

[0043] The middle sections of the first and second connecting rods are hinged together. The bottoms of the first and second connecting rods are hinged to the top surface of the moving part 1. A lifting plate is provided at the top of the first and second connecting rods. After the lifting plate rises, it abuts against the bottom surface of the support frame 3. The bottom of the hydraulic cylinder is fixedly connected to the top surface of the moving part 1, and the free end of the cylinder rod of the hydraulic cylinder is connected to the bottom surface of the support frame 3. The height of the support frame 3 is adjusted by controlling the extension length of the cylinder rod.

[0044] In one feasible embodiment, the lifting part 2 is a lead screw structure, which includes at least a rotating motor, a rotating gear, and a connecting rack;

[0045] The rotating motor is fixedly connected to the top surface of the moving part 1. The output shaft of the rotating connection is fixedly connected to the rotating gear, which controls the forward or reverse rotation of the rotating gear. The connecting rack is arranged vertically, and a lifting plate is provided at the top of the connecting rack. After the lifting plate rises, it abuts against the bottom surface of the support frame 3, and the connecting rack meshes with the rotating gear. The height of the support frame 3 can be adjusted by controlling the rotation of the rotating motor.

[0046] It should be noted that in this application, the height of the support frame 3 is 1-1.2m, and the lifting range of the support frame 3 is 10-50mm. The installation accuracy of the corrugated branch pipe is ensured by using a hydraulic cylinder or a rotating motor. By setting the support frame 3 to a predetermined height, the lifting amplitude can be reduced, requiring only precision adjustment afterwards, simplifying the installation process and improving work efficiency.

[0047] In one feasible embodiment, a telescopic shaft is provided between the bottom surface of the support frame 3 and the top surface of the movable part 1.

[0048] It should be noted that the support frame 3 and the moving part 1 are coaxially arranged, and both ends of the telescopic shaft are connected to the axes of the support frame 3 and the moving part 1, respectively. The telescopic shaft ensures that the support frame 3 remains stable during lifting and lowering.

[0049] In one feasible embodiment, the movable part 1 is moved using horizontal rollers. The tires of the horizontal rollers are made of polyurethane or rubber anti-slip material, providing good stability. The movable part 1 enables 360° movement and rotation, facilitating relocation of the device. Furthermore, the movable part 1 has a load capacity of 8 tons.

[0050] Replacing corrugated branch pipes using existing technology requires 6 maintenance personnel for 4 hours of work. Using this application, replacing corrugated branch pipes requires only 4 maintenance personnel for 2 hours of work. The economic benefits of this application are as follows:

[0051] A. Labor costs incurred in the existing technology: 6 × 4 × 426.65 ÷ 8 = 1280 yuan;

[0052] B. Labor costs incurred in this application: 4 × 2 × 426.65 ÷ 8 = 426.65 yuan;

[0053] Therefore, the economic benefits generated by using this application are AB = 853.3 yuan.

[0054] The steel plant includes three blast furnaces. The corrugated branch pipes need to be replaced 36 times a year, saving a total of 853.3 × 36 = 30,700 yuan per blast furnace. Considering the marginal benefit of the time saved, at least 10 hours of downtime per year is required due to damaged corrugated branch pipes. The total marginal benefit is 25.33 × 10 = 253.3 million yuan.

[0055] In summary, this application provides an installation device for corrugated branch pipes in blast furnaces, which can improve the replacement efficiency of corrugated branch pipes, save maintenance time, and reduce the intensity of manual labor. When replacing corrugated branch pipes, the old corrugated branch pipe is connected to the connecting plate 6, and then removed. The new corrugated branch pipe is then installed onto the connecting plate 6 and moved to a predetermined position by the moving part 1 for installation.

[0056] The support frame 3 provides support during disassembly or installation, preventing the corrugated branch pipe from being suspended and reducing replacement difficulty. The lifting unit 2 allows for height adjustment of the corrugated branch pipe, facilitating installation and improving efficiency. The moving unit 1 allows for the movement of new or old corrugated branch pipes, making movement easier even in space-constrained conditions.

[0057] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An installation device for a corrugated branch pipe of a blast furnace, characterized in that The utility model relates to a kind of wave tube supporting frame, including: Support frame, the top of the support frame is provided with connecting disc, the connecting disc is used to be fixedly connected with the bottom of wave branch pipe; Auxiliary support is fixedly connected to the side of the support frame, and extends upward;The top of the auxiliary support is provided with arc support, the arc support is arranged along the transverse direction, and the arc support is used to abut with the top of wave branch pipe; Moving part is arranged on the bottom of the support frame, and is used to move the support frame to predetermined position;The top surface of the moving part is provided with lifting part, and the lifting part is used to be connected with the bottom surface of the support frame, and the lifting part is used to adjust the height of the support frame to predetermined height.

2. The mounting arrangement for a furnace corrugated branch of claim 1, wherein, Mounting hole is arranged on the connecting disc, and the mounting hole is used to be fixedly connected with the flange hole on the connecting flange of wave branch pipe through fastening bolt.

3. An installation device for a corrugated furnace buss of claim 2, wherein, The connecting disc and the top surface of the support frame are fixedly connected through multiple connecting legs.

4. The mounting arrangement for a furnace corrugated branch of claim 2, wherein, The mounting hole includes at least first mounting hole and second mounting hole, the first mounting hole and the second mounting hole are long holes, and the arrangement direction of the first mounting hole is perpendicular to the arrangement direction of the second mounting hole.

5. The mounting device for a corrugated furnace buss of claim 1, wherein, Inclined struts are arranged between the auxiliary support and the support frame, one end of the inclined struts is fixedly connected with the top of the auxiliary support, and the other end of the inclined struts is fixedly connected with the top surface of the support frame.

6. A mounting arrangement for a corrugated duct of a blast furnace as claimed in claim 5, characterised in that, Two inclined struts are arranged between the auxiliary support and the support frame.

7. The mounting device for a corrugated furnace buss of claim 1, wherein, The lifting part is a scissors structure, and includes at least first connecting rod, second connecting rod and hydraulic cylinder. The middle part of the first connecting rod and the second connecting rod is hinged, the bottom of the first connecting rod and the second connecting rod is hinged with the top surface of the moving part, the top of the first connecting rod and the second connecting rod is provided with jacking plate, the jacking plate is abutted with the bottom surface of the support frame after rising, the bottom of the hydraulic cylinder is fixedly connected with the top surface of the moving part, and the free end of the cylinder rod of the hydraulic cylinder is connected with the bottom surface of the support frame.

8. The mounting device for a corrugated furnace buss of claim 1, wherein, The lifting part is a lead screw structure, and includes at least rotating motor, rotating gear and connecting rack. The rotating motor is fixedly connected with the top surface of the moving part, the output shaft of the rotating connection is fixedly connected with the rotating gear, for controlling the forward rotation or reverse rotation of the rotating gear, the connecting rack is arranged along the vertical direction, the top of the connecting rack is provided with jacking plate, the jacking plate is abutted with the bottom surface of the support frame after rising, and the connecting rack is meshingly connected with the rotating gear.

9. A mounting arrangement for a corrugated furnace buss as defined in claim 8, wherein, A telescopic shaft is arranged between the bottom surface of the support frame and the top surface of the moving part.

10. Mounting arrangement for a corrugated duct of a blast furnace according to claim 9, characterized in that The support frame and the moving part are coaxially arranged, and the two ends of the telescopic shaft are respectively connected with the shaft center of the support frame and the moving part.

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