Integral pushing device for blast furnace body

Abstract

The utility model relates to the technical field of smelting engineering, and discloses an integral pushing device for a blast furnace body, which comprises a track for guiding and bearing, and a loading platform capable of moving along the track; the power structure comprises a sliding table, hydraulic push rods, a swing arm and a limiting rod, the two rotatable hydraulic push rods are arranged on the same side of the loading table, the hydraulic push rods are fixedly connected with the sliding table, the sliding table is arranged above the track, one side of the sliding table is elastically connected with the swing arm, and the limiting rod for limiting the swing arm is fixedly arranged on one side of the track; when the output shaft of the hydraulic push rod stretches out again, the end of the swing arm is clamped into the thrust notch of the other limiting rod, the swing arm is restrained from moving leftwards, and support is provided for the sliding table; the output shaft of the hydraulic push rod can push the loading table to continue to move rightwards by a certain distance, the overall structure is simple, and use is stable.

Description

A blast furnace body integral moving device Technical Field

[0001] This utility model relates to the field of metallurgical engineering technology, and in particular to a blast furnace body integral moving device. Background Technology

[0002] Overhauling and expanding blast furnace equipment involves dismantling the old blast furnace and installing a new blast furnace shell. Using the method of moving the entire blast furnace shell can significantly shorten the construction period.

[0003] A search revealed a prior art disclosure of a blast furnace overall horizontal moving structure and method (publication number: CN113895888A), comprising a foundation, at least two sets of moving channels disposed on the upper surface of the foundation, a hydraulic device installed on the moving channels, and a blast furnace structure. The blast furnace structure includes a sliding tray, a blast furnace foundation, and a blast furnace body. A groove is provided on the top of the foundation, and two tracks are provided on both sides of the groove. Thrust grooves are arranged at intervals at the bottom of the groove. The hydraulic device includes a thrust rod, a thrust seat, and a hydraulic cylinder. One end of the thrust rod is located in the thrust groove and provides a reaction force for the hydraulic device's jacking. The thrust rod can fall into thrust grooves at different positions, providing a stable and safe jacking reaction force for the horizontal jacking of the blast furnace structure. This invention is applicable to the overall horizontal moving of a blast furnace.

[0004] In existing technologies, thrust grooves are used to provide support for the thrust rod to ensure that the hydraulic cylinder provides rear support force. The locking principle is essentially the same as that of a ratchet structure. For the pushing of high towers, the load is heavy and complex. Using a ratchet structure requires a sufficiently long ratchet rack, which increases the difficulty of construction. The integral single ratchet rack is prone to breakage due to stress concentration when dealing with heavy loads, which affects the pushing stability.

[0005] Therefore, we propose an integral blast furnace body moving device. Summary of the Invention

[0006] The present invention mainly addresses the technical problems of the above-mentioned ratchet rack limiting method being unstable and inconvenient to construct, and provides a blast furnace body overall pushing device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a blast furnace body integral moving device, comprising:

[0008] A track for guiding and bearing loads, the track having a displacement-adaptable load platform;

[0009] A power structure is installed on one side of the load platform to push the load platform to move. The power structure includes a slide, a hydraulic push rod, a swing arm, and a limit rod. Two rotatable hydraulic push rods are installed on the same side of the load platform. The hydraulic push rods are fixedly connected to the slide. The slide is installed above the track. A swing arm is elastically connected to one side of the slide. A limit rod is fixedly installed on one side of the track to limit the movement of the swing arm. The swing arm can engage with the limit rod.

[0010] In a preferred embodiment of this utility model, a connecting seat is provided on one side of the load platform, and the output shaft of the hydraulic push rod is rotatably connected to the connecting seat.

[0011] In a preferred embodiment of this utility model, a roller is rotatably provided at the bottom of the slide table, and the roller is capable of rolling displacement on the track.

[0012] In a preferred embodiment of this utility model, the power structure further includes a thrust notch, with the top of the limiting rod having a thrust notch, and the end of the swing arm being able to be inserted into the thrust notch.

[0013] In a preferred embodiment of this utility model, a plurality of limiting rods are equidistantly arranged on one side of the track, the limiting rods extending obliquely toward one end of the track, and the thrust notch forming a triangular groove.

[0014] In a preferred embodiment of the present invention, the power structure further includes a deformation rod, an abutment block, and a mounting base. The mounting base and the abutment block are both fixedly connected to the deformation rod, and the mounting base is fixedly connected to the slide table. The abutment block can abut against the top of the swing arm and apply downward pressure to the swing arm.

[0015] In a preferred embodiment of this utility model, the abutting block is a triangular block, and the abutting block and the deformation rod are integrally formed, with the deformation rod forming an arc-shaped plate.

[0016] In a preferred embodiment of this utility model, the mounting base is an L-shaped plate, and the mounting base and the deformation rod are integrally formed. The mounting base is fixedly installed to the slide table by bolts.

[0017] This utility model provides a device for integrally moving a blast furnace body. It has the following beneficial effects:

[0018] 1. This blast furnace body integral moving device uses two hydraulic push rods as power to push the displacement of the load platform. Taking the movement of the load platform as an example, moving to the right radially along the track, when the output shaft of the hydraulic push rod extends, the hydraulic push rod pushes the load platform to move, and the tower is placed on top of the load platform, thus realizing the movement of the tower. When the output shaft of the hydraulic push rod retracts, the cylinder of the hydraulic push rod approaches the load platform, and the end of the swing arm slides along the top inclined surface of the limiting rod to the other limiting rod. When the output shaft of the hydraulic push rod extends again, the end of the swing arm engages in the thrust notch of the other limiting rod, inhibiting the swing arm from moving to the left and providing... The slide provides support, allowing the output shaft of the hydraulic pusher to push the load platform to move a certain distance to the right. This process is repeated, with the output shaft of the hydraulic pusher continuously extending and retracting to push the load platform. The swing arm not only provides support in the opposite direction of the slide but also adjusts its position as the slide slides between multiple limit rods to prepare for the next pushing motion. The overall structure is simple and stable in use. This solution uses multiple modular limit rods to provide support and limit the swing arm, facilitating construction. The limit rods at symmetrical positions on the two tracks are less likely to break due to excessive radial stress on the integral limit rod, thus improving stability.

[0019] 2. The blast furnace body integral pushing device uses a deformation rod made of spring steel to provide support force through deformation. The deformation rod applies downward pressure to the contact block. The contact block abuts against the top surface of the swing arm, so that the slide can fit against the limiting rod. The stability of the swing arm end being locked into the thrust notch is guaranteed, thereby enabling the slide to move between multiple limiting rods. Attached Figure Description

[0020] Figure 1 is a perspective view of the present invention.

[0021] Figure 2 is a perspective view of the power structure of this utility model;

[0022] Figure 3 is a perspective view of the swing arm and deformation rod of this utility model;

[0023] Figure 4 is a perspective view of the limiting rod of this utility model;

[0024] Figure 5 is a perspective view of the deformation rod of this utility model.

[0025] Legend: 10. Track; 11. Loading platform; 20. Slide table; 21. Hydraulic push rod; 22. Swing arm; 23. Limiting rod; 24. Thrust notch; 30. Deformation rod; 31. Abutment block; 32. Mounting base. Detailed Implementation

[0026] A blast furnace body integral moving device, as shown in Figures 1 and 2, includes:

[0027] The track 10 is used for guidance and load bearing, and the track 10 is equipped with a load-bearing platform 11 that can be moved along the track.

[0028] As shown in Figures 1, 2, 3, and 4, the power structure, located on one side of the load platform 11, is used to push the load platform 11 to move. The power structure includes a slide 20, hydraulic push rods 21, a swing arm 22, and a limiting rod 23. Two rotatable hydraulic push rods 21 are arranged on the same side of the load platform 11, and the hydraulic push rods 21 are fixedly connected to the slide 20. The slide 20 is located above the track 10, and a swing arm 22 is elastically connected to one side of the slide 20. A limiting rod 23 is fixedly provided on one side of the track 10 to limit the movement of the swing arm 22. The swing arm 22 can engage with the limiting rod 23. A connecting seat is provided on one side of the load platform 11, and the output shaft of the hydraulic push rod 21 rotates with the connecting seat. The slide table 20 is connected to a roller that is rotatably mounted on the bottom. The roller can roll and move on the track 10. The power structure also includes a thrust notch 24. The top of the limiting rod 23 has a thrust notch 24. The end of the swing arm 22 can be inserted into the thrust notch 24. Several limiting rods 23 are equidistantly arranged on one side of the track 10. The limiting rods 23 extend inclinedly towards one end of the track 10. The thrust notch 24 forms a triangular groove. A rotating shaft is fixedly installed on one side of the slide table 20. The end of the swing arm 22 has a shaft hole. The rotating shaft is inserted into the shaft hole. A washer and a retaining spring are provided on one side of the swing arm 22. The retaining spring is engaged with the rotating shaft. A pin is also inserted into the rotating shaft to prevent the retaining spring from falling off.

[0029] By using two hydraulic push rods 21 as power to push the load platform 11 to move, taking the movement of the load platform 11 as an example, moving to the right radially along the track 10. When the output shaft of the hydraulic push rod 21 extends, the hydraulic push rod 21 pushes the load platform 11 to move, and the tower is placed on top of the load platform 11, thus realizing the movement of the tower. When the output shaft of the hydraulic push rod 21 retracts, the cylinder of the hydraulic push rod 21 approaches the load platform 11, and slides along the top inclined surface of the limit rod 23 to the other limit rod 23 through the end of the swing arm 22. When the output shaft of the hydraulic push rod 21 extends again... The end of the swing arm 22 is engaged in the thrust notch 24 of another limiting rod 23, which inhibits the swing arm 22 from moving to the left and provides support for the slide table 20. This allows the output shaft of the hydraulic push rod 21 to push the load table 11 to continue moving to the right for a certain distance. This process is repeated, and the output shaft of the hydraulic push rod 21 continuously extends and retracts to push the load table 11. The swing arm 22 not only provides support for the slide table 20 in the opposite direction of movement, but also adjusts its position as the slide table 20 slides between multiple limiting rods 23 to prepare for the next pushing motion. The overall structure is simple and the operation is stable.

[0030] As shown in Figures 3 and 5, the power structure also includes a deformation rod 30, a contact block 31, and a mounting base 32. The mounting base 32 and the contact block 31 are both fixedly connected to the deformation rod 30. The mounting base 32 is fixedly connected to the slide table 20. The contact block 31 can abut against the top of the swing arm 22 and apply downward pressure to the swing arm 22. The contact block 31 is a triangular block and is integrally formed with the deformation rod 30. The deformation rod 30 forms an arc-shaped plate. The mounting base 32 is an L-shaped plate and is integrally formed with the deformation rod 30. The mounting base 32 is fixedly installed to the slide table 20 by bolts.

[0031] As a supplementary explanation to the above scheme, in order to provide stable downward pressure to the swing arm 22 so that the swing arm 22 can slide along the inclined surface of the limiting rod 23 and be engaged in the thrust notch 24, the deformation rod 30 made of spring steel provides support force by deformation. The deformation rod 30 applies downward pressure to the abutment block 31. The abutment block 31 abuts against the top surface of the swing arm 22 so that the slide table 20 can fit against the limiting rod 23. The stability of the end of the swing arm 22 being engaged in the thrust notch 24 is guaranteed, thereby enabling the slide table 20 to move between multiple limiting rods 23.

[0032] It should be noted that both the sidewalls of the swing arm 22 and the limiting rod 23 are provided with circular insertion holes, and pins can be installed in the insertion holes. When it is necessary to position the end of the swing arm 22 above the thrust notch 24, the swing arm 22 can be lifted to align the insertion hole of the swing arm 22 with the insertion hole of the limiting rod 23, and the pin can be inserted into the insertion hole. As the output shaft of the hydraulic push rod 21 extends and retracts, it can also provide a support force in the opposite direction of movement to the slide table 20 to ensure that the hydraulic push rod 21 can smoothly push the load table 11 to move.

[0033] The working principle of this utility model is as follows: Two hydraulic push rods 21 are used as power to push the load platform 11 to move. Taking the movement of the load platform 11 as an example, moving to the right radially along the track 10, when the output shaft of the hydraulic push rod 21 extends, it pushes the load platform 11 to move. The tower is placed on top of the load platform 11, thus enabling the tower to be pushed. When the output shaft of the hydraulic push rod 21 retracts, the downward pressure generated by the weight of the load platform 11 and the tower above it is sufficient to overcome the resistance of the slide 20 sliding along the track 10. Therefore, the cylinder of the slide 20 can approach the load platform 11 as the output shaft of the hydraulic push rod 21 retracts, and slide along the top inclined surface of the limiting rod 23 to the other limiting rod 23 via the end of the swing arm 22. When the output shaft of the hydraulic push rod 21 extends again, it engages with the thrust notch 24 of another limiting rod 23 through the end of the swing arm 22, inhibiting the swing arm 22 from moving to the left and providing support for the slide table 20. This allows the output shaft of the hydraulic push rod 21 to push the load table 11 to continue moving to the right for a certain distance. This process is repeated, with the output shaft of the hydraulic push rod 21 continuously extending and retracting to push the load table 11. The deformation rod 30, made of spring steel, provides support force through deformation. The deformation rod 30 applies downward pressure to the abutment block 31, and the abutment block 31 abuts against the top surface of the swing arm 22, allowing the slide table 20 to fit against the limiting rod 23. The stability of the end of the swing arm 22 being engaged in the thrust notch 24 is ensured, and the tilt angle of the limiting rod 23 is (preferably 15°–30°).

[0034] Hydraulic push rod 21 needs to be used in conjunction with a central hydraulic pump station and a proportional flow divider valve to achieve even flow distribution.

[0035] The load platform 11 is equipped with a laser rangefinder sensor, which provides real-time feedback of position deviation to the PLC control system and dynamically adjusts the stroke of each push rod. The two swing arms 22 are asymmetrically designed, with one swing arm 22 close to the load platform 11 and the other swing arm 22 away from the load platform. This design ensures that the retraction of the output shaft of the hydraulic push rod 21 is a retraction of the load platform.

[0036] In this project, hydraulic push rod 21 is used as a 200t jack as the propulsion cylinder. The rated lifting stroke of the 200t jack is 1250mm, and the stroke used during the propulsion process is 1000mm.

[0037] The track needs to be laid on the foundation, which is formed by pouring concrete. After the concrete beam is poured and reaches the required strength, the track 10 is laid on it strictly according to the elevation requirements. After the track 10 is adjusted accurately, the track 10 is welded firmly to the embedded parts and then grouting is performed to ensure that the track 10 is tightly connected to the concrete sliding beam.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A blast furnace body integral moving device, characterized in that, include: A guide rail (10) for guiding and bearing loads, on which a displacement platform (11) is provided; a power structure is provided on one side of the platform (11) for pushing the platform (11) to move. The power structure includes a slide (20), a hydraulic push rod (21), a swing arm (22) and a limiting rod (23). Two rotatable hydraulic push rods (21) are provided on the same side of the platform (11). The hydraulic push rods (21) are fixedly connected to the slide (20). The slide (20) is located above the rail (10). A swing arm (22) is elastically connected to one side of the slide (20). A limiting rod (23) is fixedly provided on one side of the rail (10) to limit the swing arm (22). The swing arm (22) can be engaged with the limiting rod (23).

2. The blast furnace body integral moving device according to claim 1, characterized in that: A connecting seat is provided on one side of the load platform (11), and the output shaft of the hydraulic push rod (21) is rotatably connected to the connecting seat.

3. The blast furnace body integral moving device according to claim 1, characterized in that: The bottom of the slide (20) is rotatably equipped with rollers, which are capable of rolling displacement on the track (10).

4. The blast furnace body integral moving device according to claim 1, characterized in that: The power structure also includes a thrust notch (24), and the top of the limiting rod (23) has a thrust notch (24), and the end of the swing arm (22) can be inserted into the thrust notch (24).

5. The blast furnace body integral moving device according to claim 4, characterized in that: A number of limiting rods (23) are equidistantly arranged on one side of the track (10). The limiting rods (23) extend inclinedly toward one end of the track (10), and the thrust notch (24) forms a triangular groove.

6. The blast furnace body integral moving device according to claim 1, characterized in that: The power structure also includes a deformation rod (30), an abutment block (31), and a mounting base (32). The mounting base (32) and the abutment block (31) are both fixedly connected to the deformation rod (30). The mounting base (32) is fixedly connected to the slide table (20). The abutment block (31) can abut against the top of the swing arm (22) and apply downward pressure to the swing arm (22).

7. The blast furnace body integral moving device according to claim 6, characterized in that: The contact block (31) is a triangular block, and the contact block (31) and the deformation rod (30) are integrally formed. The deformation rod (30) forms an arc-shaped plate.

8. The blast furnace body integral moving device according to claim 6, characterized in that: The mounting base (32) is an L-shaped plate. The mounting base (32) and the deformation rod (30) are integrally formed. The mounting base (32) is fixedly installed to the slide table (20) by bolts.

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