A special tool for quick opening of blast furnace tuyere

Abstract

The utility model provides a special tool suitable for blast furnace fast opening tuyere, including steel fiber, be provided with the beat tray on the outside wall of steel fiber, the outside wall of steel fiber is slidably sleeved with slide hammer, slide hammer sets up in beat tray far from steel drill tip one side, slide hammer is along the axial of steel fiber and is towards beat tray one side slide and hits beat tray, the reaction force that utilizes slide hammer hits generates drive steel fiber to the tip direction movement to open blast furnace tuyere, the utility model discloses a slide hammer along the steel fiber / steel pipe slide hits beat tray's design, replaces traditional many people cooperation mode, only needs 1-2 people to complete operation, saves manpower and time, simultaneously, slide hammer slide hits impact force stability, high frequency, and the efficiency of opening tuyere is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace tuyeres technology, specifically to a special tool suitable for rapid blast furnace tuyeres opening. Background Technology

[0002] In the blast furnace smelting process, the tuyere is a crucial component, and its condition directly affects the smelting efficiency and furnace stability of the blast furnace. When the blast furnace experiences abnormal conditions or needs maintenance, the tuyere is usually blocked to restore the furnace condition. As the furnace condition gradually recovers, in order to achieve enhanced smelting, the blocked tuyere needs to be opened.

[0003] In current industrial practice, to prevent the blast furnace tuyere from opening on its own, the plugging structure is generally made of refractory mud for tight sealing. The existing tuyere opening operation mainly relies on the traditional manual operation mode of steel fiber: two workers are required to take turns hammering the tail of the steel fiber with a sledgehammer, and at least two other workers use special clamps on both sides to fix the middle section of the steel fiber (and adjust the position according to the hammering depth) to prevent the steel fiber from deforming due to stress concentration during the hammering process.

[0004] However, the above methods require multiple people to work together, resulting in a large investment of human resources, which not only wastes working time but also reduces work efficiency. Furthermore, high-frequency hammering operations can easily cause worker fatigue and create safety hazards, namely, the steel fibers may slip under high-frequency impact, which may cause accidental injury to the operators. Utility Model Content

[0005] In view of this, the present invention provides a special tool for rapid tuyeres opening in blast furnaces. The design of the sliding hammer impacting the striking plate along the steel fiber / steel pipe can replace the traditional multi-person collaborative operation mode, requiring only 1-2 people to complete the operation, saving manpower and time. At the same time, the sliding hammer has a stable and high-frequency impact force, which greatly improves the efficiency of tuyeres opening.

[0006] To solve the above-mentioned technical problems, this utility model provides a special tool for rapid opening of blast furnace tuyeres, including steel fibers. An impact plate is fixedly connected to the outer wall of the steel fibers, and a sliding hammer is slidably sleeved on the outer wall of the steel fibers. The sliding hammer is located on the side of the impact plate away from the tip of the steel fibers. The sliding hammer slides along the axial direction of the steel fibers and toward the impact plate and impacts the impact plate. The reaction force generated by the impact of the sliding hammer drives the steel fibers to move toward the tip to open the blast furnace tuyeres.

[0007] Furthermore, steel fibers are placed inside the steel pipe, the striking disc is fixedly connected to the outer wall of the steel pipe, and the sliding hammer is slidably sleeved on the outer wall of the steel pipe.

[0008] A limiting plate is fixedly connected to the end of the steel pipe near the slide hammer. The limiting plate is set to prevent the slide hammer from falling off from the side away from the steel fiber.

[0009] The steel fiber is connected to the inner wall of the steel pipe through a sleeve. The sleeve allows for quick replacement of steel fibers of different lengths according to the thickness of the refractory mud blocking the air vent, in order to adapt to different blocking conditions.

[0010] The sliding hammer is connected to the outer wall of the steel pipe through a linear bearing. The guiding effect of the linear bearing prevents the sliding hammer from getting stuck due to wear caused by prolonged sliding.

[0011] The steel fiber adopts a hollow structure for pressure control under high pressure environment. That is, the hollow structure of the steel fiber helps to discharge the gas in the blast furnace, so as to achieve long-term repeated dredging operation.

[0012] The steel fiber has a solid structure and is used to forcibly break open the air vent when it is blocked by solidified iron slag.

[0013] The steel fiber adopts a composite structure with a solid front end and a hollow rear end. A vent is opened at the center of the solid front end of the steel fiber, which is connected to the hollow rear end of the steel fiber to form a gas flow channel.

[0014] Several air outlets are provided on the outer wall of the steel pipe at the end away from the steel fiber, so that some of the gas can be discharged in a directional manner through the hollow channel during demolition, reducing the pressure impact at the front end.

[0015] A support frame is provided below the slide hammer to support it. The support frame is a movable support frame to provide dynamic support to the slide hammer when it moves to impact the striking plate.

[0016] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0017] 1. Reduce manpower input and improve work efficiency: The design of sliding hammers along steel fibers / steel pipes to impact the striking plate replaces the traditional mode of "multiple people holding hammers and alternating hammering + manual fixing of steel fibers", which significantly reduces manpower input (only 1-2 people are needed to complete the work) and saves working time; the sliding impact of the sliding hammers can achieve high-frequency and stable impact output, which is more efficient than manual hammering and shortens the time of opening the air vent.

[0018] 2. Improve operational safety and reduce labor intensity: Traditional manual hammering is prone to causing operator injury due to steel fiber slippage. This tool uses a sliding guide structure (such as a linear bearing) between the sliding hammer and the steel fiber / steel pipe to ensure the stability of the sliding hammer's movement trajectory and reduce safety hazards; it eliminates the need for continuous manual hammer swinging, reducing fatigue caused by high-frequency physical labor and improving operational safety.

[0019] 3. Flexible structure, adaptable to various blockage conditions: The steel fiber is connected inside the steel pipe through a sleeve. Different lengths of steel fiber can be quickly replaced according to the thickness of the refractory mud blockage (200-300mm) to adapt to different blockage depths. The solid structure of the steel fiber is used for forced demolition when the tuyeres are blocked by solidified iron slag, providing high-strength impact force; the hollow structure of the steel fiber is suitable for high-pressure environments, and the hollow channel helps to discharge the gas in the blast furnace, achieving long-term repeated unblocking and avoiding pressure accumulation; the composite structure (solid front end + hollow rear end) of the steel fiber combines demolition strength and pressure control and exhaust functions, adapting to complex blockage scenarios.

[0020] 4. Optimized structure to improve tool reliability: The steel fiber is placed inside the steel tube, which can avoid the bending or deformation of the steel fiber caused by frequent impacts. At the same time, the steel tube provides a stable sliding track for the slide hammer, extending the tool's service life. The limit plate prevents the slide hammer from falling off the end of the steel tube, ensuring operational stability. The linear bearing guide reduces friction and wear between the slide hammer and the steel tube, preventing jamming after long-term use and improving tool durability.

[0021] 5. Controlled exhaust for enhanced operational stability: The ventilation holes in the hollow steel fiber structure or composite structure, combined with the air outlet at the end of the steel pipe, allow for directional exhaust of gas during dismantling, reducing pressure impact at the front end, avoiding operational risks caused by high pressure, and enabling safe and stable long-term operation.

[0022] 6. Dynamic support to improve impact accuracy: A movable support frame is set under the slide hammer to provide dynamic support during the impact process, ensuring that the slide hammer accurately impacts the impact plate along the axis, avoiding deviation and improving demolition efficiency and reliability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is another overall structural schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the steel fiber and its various components of the present invention.

[0026] Figure 4 This is a schematic diagram of the support frame and its components of the present invention.

[0027] In the diagram: 101, steel fiber; 102, striking plate; 103, sliding hammer; 104, steel pipe; 105, limiting plate; 106, linear bearing; 107, air outlet; 108, support frame. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0029] Example 1:

[0030] A specialized tool for rapid tuyeres opening in blast furnaces, such as... Figure 1 As shown: It includes a steel fiber 101, and an impact plate 102 is fixedly connected to the outer wall of the steel fiber 101. A sliding hammer 103 is slidably sleeved on the outer wall of the steel fiber 101. The sliding hammer 103 is located on the side of the impact plate 102 away from the tip of the steel fiber 101, so that the sliding hammer 103 can slide along the axial direction of the steel fiber 101 and towards the impact plate 102 and impact the impact plate 102. The reaction force generated by the impact of the sliding hammer 103 drives the steel fiber 101 to move towards its tip to open the blast furnace tuyeres.

[0031] In this embodiment, the steel fiber 101 adopts a solid structure, which is suitable for forcibly removing the air vent when it is blocked by solidified iron slag.

[0032] like Figure 1 , 2 As shown: Because the slide hammer 103 is relatively heavy (generally 25kg-35kg), a support frame 108 is provided below the slide hammer 103 to support the slide hammer 103. The support frame 108 is a movable support frame 108, which is used to provide dynamic support for the slide hammer 103 when it moves to impact the striking plate 102, thereby improving the accuracy and effectiveness of the impact of the slide hammer 103.

[0033] When it is necessary to open the blast furnace tuyeres, the operator pushes the sliding hammer 103 along the axial direction of the steel fiber 101 towards the striking plate 102. The sliding hammer 103 strikes the striking plate 102, and the resulting reaction force drives the steel fiber 101 to move towards the tip. The impact force of the tip of the steel fiber 101 is used to break up the blocked tuyeres. Under the dynamic support of the support frame 108, the sliding hammer 103 can slide and impact stably, improving the breaking efficiency. Furthermore, by sliding the sliding hammer 103 on the steel fiber 101, the investment of human resources can be reduced (it can be completed by one or two people), and the sliding impact can improve work efficiency.

[0034] Example 2:

[0035] The difference in Example 1 is that, as Figure 3As shown: the steel fiber 101 is set inside the steel pipe 104, the striking plate 102 is fixedly connected to the outer wall of the steel pipe 104, and the sliding hammer 103 is sleeved on the outer wall of the steel pipe 104. Setting the steel pipe 104 makes it easier to operate the steel fiber 101 and can prevent the steel fiber 101 from bending and slipping due to frequent impacts. At the same time, the steel pipe 104 can also play a certain role in protecting the steel rod and extending the service life of the steel fiber 101.

[0036] The steel fiber 101 is connected to the inner wall of the steel pipe 104 through a sleeve. Different lengths of steel fiber 101 can be quickly replaced according to the thickness of the refractory mud blocking the air vent (generally 200mm-300mm) to adapt to different blocking conditions.

[0037] like Figure 3 As shown: A limiting plate 105 is fixedly connected to one end of the steel pipe 104 near the slide weight 103. The limiting plate 105 is set to prevent the slide weight 103 from sliding off the side away from the steel fiber 101, so as to ensure the stability of the slide weight 103 during the sliding process.

[0038] The slide weight 103 is connected to the outer wall of the steel pipe 104 via a linear bearing 106. The guiding effect of the linear bearing 106 prevents the slide weight 103 from getting stuck due to long-term wear, thus preventing the slide weight 103 from sliding on the steel pipe 104 for a long time and causing wear. This further improves the stability of the slide weight 103 during use, reduces friction and wear, and enhances the reliability of the tool.

[0039] like Figure 3 As shown: Steel Fiber 101 adopts a hollow structure for pressure control in high-pressure environments. Specifically, the hollow structure of Steel Fiber 101 assists in the discharge of gas from the high-pressure environment, enabling long-term, repeated unblocking operations.

[0040] Several air outlets 107 are provided on the outer wall of the end of the steel pipe 104 away from the steel fiber 101. During demolition, some gas can be directionally discharged through the hollow channel of the steel fiber 101 and the steel pipe 104, and quickly discharged through the several air outlets 107 to reduce the pressure impact at the front end.

[0041] Example 3:

[0042] The difference from Embodiment 1 is that, as shown in, Figure 4 As shown: Steel Fiber 101 adopts a composite structure with a solid front end and a hollow rear end. A vent is opened at the center of the solid front end of Steel Fiber 101, which is connected to the hollow rear end of Steel Fiber 101 to form a gas flow channel. This improves the safety and stability of the tool during the demolition process. It can provide sufficient demolition force and realize the functions of pressure control and gas discharge, making it suitable for a variety of complex blockage conditions.

[0043] Furthermore, it should be noted that, in the description of this utility model, 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.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A special tool for rapid tuyeres opening in blast furnaces, characterized in that: Includes steel fiber (101), and an impact plate (102) is provided on the outer side wall of the steel fiber (101); A sliding hammer (103) is slidably sleeved on the outer wall of the steel fiber (101). The sliding hammer (103) is located on the side of the striking plate (102) away from the tip of the steel rod. The sliding hammer (103) slides along the axial direction of the steel fiber (101) and towards the striking plate (102) and strikes the striking plate (102). The reaction force generated by the impact of the sliding hammer (103) drives the steel fiber (101) to move towards the tip to open the blast furnace tuyeres.

2. The special tool for rapid tuyeres opening in blast furnaces as described in claim 1, characterized in that: The steel fiber (101) is disposed inside the steel pipe (104), the striking disc (102) is connected to the outer wall of the steel pipe (104), and the sliding hammer (103) is slidably sleeved on the outer wall of the steel pipe (104).

3. The special tool for rapid tuyeres opening in blast furnaces as described in claim 2, characterized in that: A limiting plate (105) is provided at the end of the steel pipe (104) near the slide (103) to prevent the slide (103) from falling off from the side away from the steel fiber (101).

4. The special tool for rapid tuyeres opening in blast furnaces as described in claim 2, characterized in that: The steel rod is connected to the inner wall of the steel pipe (104) through a sleeve. The steel rod (101) of different lengths can be quickly replaced according to the thickness of the refractory mud blocking the air vent to adapt to different blocking conditions.

5. The special tool for rapid tuyeres opening in blast furnaces as described in claim 2, characterized in that: The slide (103) is connected to the outer wall of the steel pipe (104) by a linear bearing (106). The guide effect of the linear bearing (106) prevents the slide (103) from jamming due to long-term wear.

6. The special tool for rapid tuyeres opening in blast furnaces as described in claim 1, characterized in that: The steel fiber (101) has a hollow structure and is used for pressure control under high pressure environment to achieve long-term repeated dredging operations.

7. The special tool for rapid tuyeres opening in blast furnaces as described in claim 1, characterized in that: The steel fiber (101) has a solid structure and is used to forcibly break open the air vent when it is blocked by solidified iron slag.

8. The special tool for rapid tuyeres opening in blast furnaces as described in claim 1, characterized in that: The steel fiber (101) adopts a composite structure with a solid front end and a hollow rear end. A vent hole is provided at the center of the solid front end of the steel fiber, and the vent hole is connected to the hollow rear end of the steel fiber (101) to form a gas flow channel.

9. The special tool for rapid tuyeres opening in blast furnaces as described in claim 6 or 8, characterized in that: Several air outlets (107) are provided on the outer wall of the end of the steel pipe (104) away from the steel fiber (101), so that some gas can be discharged in a directional manner through the hollow channel during demolition, reducing the pressure impact at the front end.

10. The special tool for rapid tuyeres opening of blast furnaces as described in claim 1 or 2, characterized in that: A support frame (108) is provided below the slide hammer (103) to support the slide hammer (103). The support frame (108) is a movable support frame (108) to provide dynamic support for the slide hammer (103) when it moves to impact the striking plate (102).

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