Blast furnace blowpipe flat pin dismounting device

Abstract

The utility model relates to the technical field of blast furnace blowpipe flat pin dismounting, and discloses a blast furnace blowpipe flat pin dismounting device which comprises a blowpipe body and a hydraulic pump, a blowpipe bolt is arranged in the blowpipe body in a penetrating mode, a flat pin body is connected in the blowpipe bolt in a sliding mode, one end of the hydraulic pump is fixedly connected with a first handle, and the other end of the hydraulic pump is fixedly connected with a second handle. A hand pump handle is arranged on one side of the hydraulic pump, a pressure relief switch is fixedly connected to the outer wall of the hydraulic pump, a supporting assembly is arranged on the outer wall of the hydraulic pump, a sleeve is fixedly connected to one side of the supporting assembly, and a flat pin groove is formed in the sleeve. According to the utility model, through the cooperation among the connecting sleeve, the supporting rod, the sleeve, the hydraulic pump and the jack, the effect of improving the efficiency of disassembling the flat pin is achieved, and the problem that when a blowpipe is replaced, the blowpipe needs to be disassembled after the flat pin is cut off by a cutting knife or the flat pin is knocked off by a sledge hammer, which wastes time and labor is solved; and the production efficiency of the blast furnace blowpipe flat pin dismounting device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace blow pipe flat pin disassembly, in particular to a blast furnace blow pipe flat pin disassembly device. Background Art

[0002] Blast furnace blowpipe is the air supply system of the blast furnace in the ironmaking plant, which is responsible for sending the air from the hot blast furnace to about 1250° through the blowpipe into the blast furnace body for ore smelting. The blast furnace blowpipe flat pin disassembly device is an auxiliary tool used to disassemble the blast furnace blowpipe, which can help the staff to perform the disassembly operation more easily and safely.

[0003] Since the blowpipe equipment works in a high temperature and high pressure environment for a long time, it is inevitable that the blowpipe will burn out. After the blowpipe burns out, the blast furnace can only temporarily stop the wind to replace the blowpipe, so the length of the blowpipe replacement time directly affects the production efficiency of the blast furnace. In the past, the blowpipe was replaced almost always by cutting the flat pin with a cutter and then disassembling the blowpipe or knocking off the flat pin with a sledgehammer, which was time-consuming and laborious. Therefore, in order to solve the above problem, a blast furnace blowpipe flat pin disassembly device was proposed. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a blast furnace blowpipe flat pin disassembly device, which aims to improve the problem that when replacing the blowpipe, it is necessary to use a cutter to cut off the flat pin and then disassemble the blowpipe or use a sledgehammer to knock off the flat pin, which is time-consuming and labor-intensive and affects the production efficiency of the blast furnace.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a blast furnace blowpipe flat pin disassembly device, comprising a blowpipe body and a hydraulic pump, a blowpipe bolt is inserted into the blowpipe body, the flat pin body is slidably connected inside the blowpipe bolt, a handle is fixedly connected to one end of the hydraulic pump, a hand pump handle is provided on one side of the hydraulic pump, a pressure relief switch is fixedly connected to the outer wall of the hydraulic pump, a support assembly is provided on the outer wall of the hydraulic pump, a sleeve is fixedly connected to one side of the support assembly, a flat pin groove is opened inside the sleeve, a bolt countersunk hole is opened inside the sleeve, the outer wall of the blowpipe bolt is slidably connected to the inside of the bolt countersunk hole, the outer wall of the flat pin body is slidably connected to the inside of the flat pin groove, and a top column is provided at the output end of the hydraulic pump.

[0006] As a further description of the above technical solution:

[0007] The support assembly includes a connecting sleeve and a supporting rod, one end of the supporting rod is fixedly connected to the outer wall of the connecting sleeve, the other end of the supporting rod is fixedly connected to the outer wall of the sleeve, and the inner thread of the connecting sleeve is connected to the outer wall of the hydraulic pump.

[0008] As a further description of the above technical solution:

[0009] The output end of the hydraulic pump is fixedly connected with a connecting rod, a limiting groove is arranged inside the connecting rod, and a clamping groove is arranged inside the top column.

[0010] As a further description of the above technical solution:

[0011] A limiting plate is arranged inside the connecting rod, and the limiting plate is symmetrically arranged and slidably connected inside the limiting groove.

[0012] As a further description of the above technical solution:

[0013] A hemispherical column is fixedly connected to one side of the limiting plate, and the outer wall of the hemispherical column is embedded in the slot.

[0014] As a further description of the above technical solution:

[0015] A telescopic rod is arranged inside the connecting rod, and both ends of the telescopic rod are fixedly connected between the limiting plates.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the telescopic rod is sleeved with a spring, and both ends of the spring are fixedly connected between the limiting plates.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the hemispherical column is slidably connected inside the connecting rod.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, firstly, the efficiency of disassembling flat pins is improved through the cooperation between the connecting sleeve, the support rod, the sleeve, the hydraulic pump and the support, which solves the problem that when replacing the blow pipe, it is necessary to use a cutting knife to cut off the flat pin and then disassemble the blow pipe or use a sledgehammer to knock off the flat pin, which is time-consuming and laborious, affecting the production efficiency of the blast furnace, and improves the production efficiency of the blast furnace blow pipe flat pin disassembly device.

[0022] 2. In the utility model, the coordination among the support, connecting rod, hemispherical column, telescopic rod and spring is used to facilitate the replacement of different support, solve the problem that support of flat pins of different sizes and models cannot be well adapted, and improve the practicality of the blast furnace blowpipe flat pin disassembly device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a blast furnace blowpipe flat pin disassembly device proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of a connecting sleeve of a blast furnace blow pipe flat pin removal device proposed by the utility model;

[0025] Figure 3 The utility model provides a schematic diagram of the internal structure of a connecting rod of a blast furnace blowpipe flat pin disassembly device.

[0026] Legend:

[0027] 1. Blowpipe body; 2. Blowpipe bolt; 3. Flat pin body; 4. Hydraulic pump; 5. Hand pump handle; 6. Handle 1; 7. Pressure relief switch; 8. Top column; 9. Connecting sleeve; 10. Support rod; 11. Sleeve; 12. Flat pin groove; 13. Bolt countersunk hole; 14. Slot; 15. Connecting rod; 16. Limiting groove; 17. Limiting plate; 18. Hemispherical column; 19. Telescopic rod; 20. Spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1 and Figure 2 , the utility model provides an embodiment: a blast furnace blowpipe flat pin disassembly device, including a blowpipe body 1 and a hydraulic pump 4, a blowpipe bolt 2 is inserted into the blowpipe body 1, a flat pin body 3 is slidably connected inside the blowpipe bolt 2, a handle 6 is fixedly connected to one end of the hydraulic pump 4, a hand pump handle 5 is arranged on one side of the hydraulic pump 4, a pressure relief switch 7 is fixedly connected to the outer wall of the hydraulic pump 4, a support assembly is arranged on the outer wall of the hydraulic pump 4, a sleeve 11 is fixedly connected to one side of the support assembly, a flat pin groove 12 is opened inside the sleeve 11, a bolt countersunk hole 13 is opened inside the sleeve 11, the outer wall of the blowpipe bolt 2 is slidably connected to the inside of the bolt countersunk hole 13, the outer wall of the flat pin body 3 is slidably connected to the inside of the flat pin groove 12, a top column 8 is arranged at the output end of the hydraulic pump 4, the support assembly includes a connecting sleeve 9 and a support rod 10, one end of the support rod 10 is fixedly connected to the outer wall of the connecting sleeve 9, the other end of the support rod 10 is fixedly connected to the outer wall of the sleeve 11, and the inner thread of the connecting sleeve 9 is connected to the outer wall of the hydraulic pump 4;

[0030] Specifically, in the process of disassembling the flat pin body 3, the sleeve 11 needs to be accurately placed at the bottom of the blowpipe bolt 2. This step is very critical because the position of the sleeve 11 will directly affect the smooth progress of the subsequent disassembly. Next, the flat pin groove 12 is inserted into the inside of the bolt countersunk hole 13. This step is to ensure that the flat pin body 3 can be stably fixed in the flat pin groove 12. After completing the above steps, the pressure relief switch 7 should be turned off next to ensure the normal operation of the hydraulic system. Then, by shaking the hand pump handle 5, the output end of the hydraulic pump 4 drives the ejector column 8 to be ejected. The function of the ejector column 8 is to eject the flat pin body 3 on the blowpipe bolt 2, which is a key step in disassembling the blowpipe bolt 2. After completing one disassembly, the pressure relief switch 7 needs to be turned on so that the output end of the hydraulic pump 4 drives the ejector column 8 to retract. This step is to facilitate the next disassembly operation and also protect the hydraulic system. Subsequently, the next disassembly operation can be performed, and the above steps are repeated until all disassembly tasks are completed. During the entire disassembly process, it is necessary to strictly follow the operating steps to ensure the accuracy of each step. At the same time, the equipment should be regularly maintained and inspected to ensure the normal operation of the equipment. Only in this way can the disassembly work be smoothly carried out and the potential risks be reduced. Through the above steps, we can efficiently and safely complete the disassembly of the flat pin body 3.

[0031] Reference Figure 3 The output end of the hydraulic pump 4 is fixedly connected with a connecting rod 15, a limiting groove 16 is provided inside the connecting rod 15, a card slot 14 is provided inside the top column 8, a limiting plate 17 is provided inside the connecting rod 15, the limiting plate 17 is symmetrically arranged and slidably connected inside the limiting groove 16, a hemispherical column 18 is fixedly connected to one side of the limiting plate 17, the outer wall of the hemispherical column 18 is embedded in the card slot 14, a telescopic rod 19 is provided inside the connecting rod 15, both ends of the telescopic rod 19 are fixedly connected between the limiting plates 17, the outer wall of the telescopic rod 19 is sleeved with a spring 20, both ends of the spring 20 are fixedly connected between the limiting plates 17, and the outer wall of the hemispherical column 18 is slidably connected inside the connecting rod 15;

[0032] Specifically, when the top column 8 needs to be replaced, we need to completely separate the top column 8 from the connecting rod 15. This process is mainly achieved through the hemispherical column 18 inside the connecting rod 15. The hemispherical column 18 and the slot 14 are designed with a chimeric structure, which can play a positioning role in the process of separating the top column 8 from the connecting rod 15. This design makes the connection between the top column 8 and the connecting rod 15 more stable, and also facilitates the subsequent replacement operation. Then, in order to ensure the accurate position of the hemispherical column 18 inside the connecting rod 15, we also need to set a limit plate 17. The limit plate 17 can prevent the hemispherical column 18 from shifting inside the connecting rod 15, ensuring the stability of the connection. This design makes the process of replacing the top column 8 safer and more reliable, and avoids equipment failures caused by incorrect component positioning. Finally, in order to make it easy to separate the hemispherical column 18 from the slot 14, we can also use the tension of the spring 20. The spring 20 is located between the hemispherical columns 18, and by supporting the hemispherical column 18, it can be easily separated from the slot 14 when the top column 8 is replaced. This design makes the replacement process smoother and reduces the difficulty of operation.

[0033] Working principle: When using the blast furnace blowpipe flat pin disassembly device, first place the sleeve 11 at the bottom of the blowpipe bolt 2, then insert the flat pin groove 12 into the bolt countersunk hole 13, insert the flat pin body 3 into the flat pin groove 12 for fixing, then close the pressure relief switch 7, and drive the push column 8 to be pushed out by shaking the hand pump handle 5, and push the flat pin body 3 on the blowpipe bolt 2 through the push column 8, and then remove the blowpipe bolt 2. After one disassembly is completed, open the pressure relief switch 7, so that the output end of the hydraulic pump 4 drives the push column 8 to retract and disassemble the next one. When the push column 8 needs to be replaced, it is only necessary to pull out the push column 8 directly and separate it from the connecting rod 15. The push column 8 and the connecting rod 15 are positioned by the hemispherical column 18 inside the connecting rod 15 embedded in the card slot 14. The hemispherical column 18 is limited inside the connecting rod 15 by the limit plate 17. The hemispherical columns 18 are supported and placed by the tension of the spring 20, and the hemispherical columns 18 are easily separated from the card slot 14.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blast furnace blowpipe flat pin removal device, comprising a blowpipe body (1) and a hydraulic pump (4), characterized in that: A blow pipe bolt (2) is inserted into the blow pipe body (1), and a flat pin body (3) is slidably connected to the blow pipe bolt (2). A handle (6) is fixedly connected to one end of the hydraulic pump (4), and a hand pump handle (5) is provided on one side of the hydraulic pump (4). A pressure relief switch (7) is fixedly connected to the outer wall of the hydraulic pump (4). A support assembly is provided on the outer wall of the hydraulic pump (4), and a sleeve (11) is fixedly connected to one side of the support assembly. A flat pin groove (12) is provided inside the sleeve (11), and a bolt countersunk hole (13) is provided inside the sleeve (11). The outer wall of the blow pipe bolt (2) is slidably connected to the bolt countersunk hole (13), and the outer wall of the flat pin body (3) is slidably connected to the flat pin groove (12). A top column (8) is provided at the output end of the hydraulic pump (4).

2. A blast furnace blowpipe flat pin removal device according to claim 1, characterized in that: The support assembly comprises a connecting sleeve (9) and a supporting rod (10), one end of the supporting rod (10) being fixedly connected to the outer wall of the connecting sleeve (9), the other end of the supporting rod (10) being fixedly connected to the outer wall of the sleeve (11), and the inner thread of the connecting sleeve (9) being connected to the outer wall of the hydraulic pump (4).

3. A blast furnace blowpipe flat pin removal device according to claim 1, characterized in that: The output end of the hydraulic pump (4) is fixedly connected to a connecting rod (15), a limiting groove (16) is provided inside the connecting rod (15), and a clamping groove (14) is provided inside the top column (8).

4. A blast furnace blowpipe flat pin removal device according to claim 3, characterized in that: A limiting plate (17) is arranged inside the connecting rod (15), and the limiting plate (17) is symmetrically arranged and slidably connected inside the limiting groove (16).

5. A blast furnace blowpipe flat pin removal device according to claim 4, characterized in that: A hemispherical column (18) is fixedly connected to one side of the limiting plate (17), and an outer wall of the hemispherical column (18) is embedded in the clamping groove (14).

6. A blast furnace blowpipe flat pin removal device according to claim 3, characterized in that: A telescopic rod (19) is arranged inside the connecting rod (15), and both ends of the telescopic rod (19) are fixedly connected between the limiting plates (17).

7. A blast furnace blowpipe flat pin removal device according to claim 6, characterized in that: The outer wall of the telescopic rod (19) is sleeved with a spring (20), and both ends of the spring (20) are fixedly connected between the limit plates (17).

8. The blast furnace blowpipe flat pin removal device according to claim 5, characterized in that: The outer wall of the hemispherical column (18) is slidably connected to the interior of the connecting rod (15).

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