Hoisting clamp for blast-furnace tuyere

Abstract

The utility model relates to the technical field of iron-making blast furnace tuyere hoisting, and solves the problems of unstable hoisting, high operation risk and low efficiency when a blast furnace tuyere is replaced in the prior art. The hoisting clamp for the blast-furnace tuyere comprises a clamping part, a cavity for containing the blast-furnace tuyere is formed in the clamping part, and the blast-furnace tuyere is clamped; the locking part is detachably connected with the clamping part, and the clamping part is provided with a through groove for the locking part to pass through; the locking part is used for locking the blast-furnace tuyere in the cavity of the clamping part; and the hoisting parts are arranged on the two sides of the clamping part and connected with the clamping part, and the hoisting parts are used for being matched with a hoisting tool to hoist the blast-furnace tuyere to a designated position. By integrating the clamping part, the locking part and the hoisting part, stable hoisting operation of the blast-furnace tuyere is realized, and the operation safety is ensured while the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ironmaking blast furnace tuyere hoisting technical field, especially a kind of hoisting fixture for blast furnace tuyere. BACKGROUND

[0002] As the key equipment in the process of blast furnace ironmaking, the construction quality and safety are very important when the blast furnace tuyere air supply device is replaced. The space for the operation of the blast furnace tuyere area is usually small, and the surrounding environment is high in temperature. The upper and lower sections are heavy and require high installation. The carbon monoxide content in the environment is high, and the risk of personnel operation is high.

[0003] During the entire replacement operation, the hoisting operation is the most risky. First, the hoisting point is not convenient to choose. Second, the upper and lower sections are heavy. Third, the operation space and environment are limited. The commonly used method is to use a steel wire rope to bundle and hoist the upper and lower sections. Once the hoisting is unstable, it may cause installation quality problems of the air supply device, resulting in air leakage or position deviation of the air supply device, affecting the stability of the blast furnace, and in severe cases, it may cause safety problems of the personnel on site. SUMMARY

[0004] The utility model aims to provide a kind of hoisting fixture for blast furnace tuyere, solve the problems of instability, high operation risk and low efficiency when replacing blast furnace tuyere in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] The utility model provides a kind of hoisting fixture for blast furnace tuyere, comprising:

[0007] The clamping part is provided with a cavity for accommodating the blast furnace tuyere, and the blast furnace tuyere is clamped.

[0008] The locking part is detachably connected with the clamping part, and a through slot is formed in the clamping part for the locking part to pass through. The locking part is used to lock the blast furnace tuyere in the cavity of the clamping part.

[0009] The hoisting part is arranged on both sides of the clamping part and connected with the clamping part. The hoisting part is used to cooperate with the lifting appliance to hoist the blast furnace tuyere to the designated position.

[0010] Further, the cavity of the clamping part is U-shaped.

[0011] Further, the upper surface of the clamping part is inclined downward from one end away from the locking part to form an inclined part.

[0012] Further, the locking part includes a fixed rod and locking pieces arranged at both ends of the fixed rod. Positioning holes are formed in the fixed rod for the locking pieces to pass through.

[0013] Further, the fixing rod is arranged in the through groove, and an inner diameter of the through groove is greater than an outer diameter of the fixing rod.

[0014] Further, the lifting part comprises a connecting column and a lifting lug, the connecting column is fixedly connected to two sides of the clamping part, and the lifting lug is sleeved on the connecting column and used for being connected with a lifting appliance.

[0015] Further, the connecting column comprises a column body and a limiting piece integrally connected with the column body, and the limiting piece is used for limiting the lifting lug.

[0016] Further, a connecting hole is formed in the lifting lug, and the lifting lug is connected with the lifting appliance through the connecting hole.

[0017] Thanks to the above technical scheme, the utility model has the following advantages compared with the prior art:

[0018] The utility model discloses a kind of lifting clamps for blast furnace tuyere, by integrated clamping part, locking part and lifting part, realize the stable hoisting operation of blast furnace tuyere. The cavity in clamping part contains blast furnace tuyere, while the through groove for locking part is formed on clamping part, blast furnace tuyere is locked in cavity by locking part, then lifting part is cooperated with external lifting appliance operation, and then blast furnace tuyere is hoisted to specified position.

[0019] Compared with the prior art, the lifting clamp for blast furnace tuyere disclosed in the utility model can stably position and fix the blast furnace tuyere, ensure the stability and safety during lifting, avoid secondary lifting, and has high operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Some specific embodiments of the utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference signs in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1 is a perspective structural schematic view of the lifting clamp for blast furnace tuyere provided by the utility model;

[0022] Figure 2 is a front view of the lifting clamp for blast furnace tuyere provided by the utility model;

[0023] Figure 3 is a top view of the lifting clamp for blast furnace tuyere provided by the utility model;

[0024] Among them, the following is explained:

[0025] 1, clamping part; 101, through slot; 102, inclined part; 2, locking part; 201, fixed rod; 2010, positioning hole; 202, locking piece; 3, hoisting part; 301, connecting column; 3010, column body; 3011, limiting piece; 302, lifting lug; 3020, connecting hole. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] In the embodiments of the present application, a hoisting clamp for blast furnace tuyere is provided, as shown in the drawings, specifically comprising a clamping part 1, a locking part 2 and a hoisting part 3. Figure 1

[0028] The clamping part 1 is provided with a cavity accommodating the blast furnace tuyere, so that the blast furnace tuyere can be clamped and fixed in the cavity, forming a preliminary fixation. The cavity in this embodiment is U-shaped, because the upper and lower sections of the blast furnace tuyere are usually cylindrical or cylindrical, the U-shaped cavity can better fit the outer surface of the upper and lower sections, provide a more stable clamping effect, ensure that the contact area between the clamping part and the blast furnace tuyere is maximized, thereby improving the firmness and reliability of clamping. Moreover, the opening of the U-shaped cavity also facilitates the operator to easily clamp the hoisting clamp on the upper and lower sections of the blast furnace tuyere, improving the work efficiency. The size of the cavity can be adjusted according to the production needs, as long as it is compatible with the size of the blast furnace tuyere.

[0029] For the above-mentioned locking part 2, the locking part 2 is detachably connected with the clamping part 1, and a through slot 101 is formed on the clamping part 1 for the locking part 2 to pass through, so that the blast furnace tuyere is locked in the cavity of the clamping part 1 by the locking part 2. The shape of the through slot 101 can be circular, square or other shapes.

[0030] Specifically, the locking part 2 comprises a fixed rod 201 and locking pieces 202 arranged at both ends of the fixed rod 201. The fixed rod 201 is arranged in the through slot 101, and the inner diameter of the through slot 101 is greater than the outer diameter of the fixed rod 201. By integrating the locking pieces 202 on the fixed rod 201, the fixed rod 201 can be limited in the through slot 101, preventing the fixed rod 201 from loosening from the through slot 101. The shape of the fixed rod 201 is adaptively changed according to the shape of the through slot 101.

[0031] ​In this embodiment, the fixing rod 201 is provided with a positioning hole 2010 for the locking piece 202 to pass through. The locking piece 202 can be a bolt or a positioning pin. In order to achieve stable positioning, the upper and lower surfaces of the fixing rod 201 are provided with positioning holes 2010. When the locking piece 202 is a bolt, the bolt is passed through the positioning hole 2010 and then fixed to the lower surface of the fixing rod 201 by a nut, thereby achieving stable connection.

[0032] In addition, the upper surface of the clamping part 1 is inclined downward from one end away from the locking part 2 to form an inclined part. The design of the inclined part can help adjust the center of gravity distribution of the lifting tool, making it easier to maintain balance during lifting. Because the upper and lower sections of the blast furnace tuyere are heavy and irregular in shape, traditional horizontal clamping parts may not be able to adapt well to the center of gravity distribution, resulting in tilting or instability during lifting. The design of the inclined part can change the point and direction of the clamping force, making the lifting center of gravity closer to the lifting center, thereby achieving more stable lifting.

[0033] The lifting part 3 is arranged on both sides of the clamping part 1 and is fixedly connected with the clamping part 1. The lifting part 3 cooperates with the external lifting tool to lift the blast furnace tuyere to the designated position.

[0034] Specifically, the lifting part 3 includes a connecting column 301 and an ear 302. The connecting column 301 is fixedly connected to the two sides of the clamping part 1, and the ear 302 is sleeved on the connecting column 301 and can move on the connecting column 301. The external lifting tool is connected with the ear 302 through the connecting hole 3020 formed in the ear 302, thereby lifting the entire lifting clamp and the lifted object.

[0035] The connecting column 301 includes a column body 3010 and a limiting piece 3011 integrally connected with the column body 3010. The limiting piece 3011 is arranged on the side of the column body 3010 and limits the ear 302 to prevent the ear 302 from slipping off the column body 3010.

[0036] During specific operation, the operator first sleeves the blast furnace tuyere into the clamping part 1 of the lifting clamp, then passes the fixing rod 201 through the through slot 101 and locks it by the locking piece 202. Then the lifting tool is connected with the ear 302, and after adjusting the lifting center, the lifting is carried out.

[0037] In summary, the lifting clamp for blast furnace tuyere disclosed in the utility model realizes stable lifting operation of the blast furnace tuyere by integrating the clamping part 1, the locking part 2 and the lifting part 3. The blast furnace tuyere is accommodated in the cavity in the clamping part 1, and the through slot 101 is formed in the clamping part 1 for the locking part 2 to pass through. The blast furnace tuyere is locked in the cavity by the locking part 2, and then the lifting part 3 cooperates with the external lifting tool to lift the blast furnace tuyere to the designated position.

[0038] By using the lifting clamp, the secondary lifting caused by unreasonable selection of lifting center is effectively avoided, the installation operation risk is reduced, the operation efficiency is improved, and the safety of the on-site construction personnel is ensured. The reliability of lifting is greatly improved in the actual operation process, and the operation is stable and reliable, thereby solving the safety problem in production operation.

[0039] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A hoisting clamp for a blast furnace tuyere, characterized by, The utility model relates to a high furnace tuyere clamp, which comprises a clamping part (1) provided with a cavity for accommodating the high furnace tuyere and clamping the high furnace tuyere, a locking part (2) detachably connected with the clamping part (1) and provided with a through slot (101) for the locking part (2) to pass through, and a hoisting part (3) arranged on both sides of the clamping part (1) and connected with the clamping part (1) and used for cooperating with a lifting appliance to hoist the high furnace tuyere to a designated position. The cavity of the clamping part (1) is U-shaped. The upper surface of the clamping part (1) is inclined downward to form an inclined part (102) away from one end of the locking part (2). The locking part (2) comprises a fixing rod (201) and locking pieces (202) arranged at both ends of the fixing rod (201), and the fixing rod (201) is provided with positioning holes (2010) for the locking pieces (202) to pass through.

2. The lifting clamp for a blast furnace tuyere according to claim 1, characterized in that The fixing rod (201) is arranged in the through slot (101), and the inner diameter of the through slot (101) is greater than the outer diameter of the fixing rod (201).

3. The lifting clamp for a blast furnace tuyere according to claim 1, characterized in that The hoisting part (3) comprises connecting columns (301) and lifting lugs (302), the connecting columns (301) are fixedly connected to both sides of the clamping part (1), the lifting lugs (302) are sleeved on the connecting columns (301), and the lifting lugs (302) are used for being connected with the lifting appliance.

4. The lifting clamp for a blast furnace tuyere according to claim 1, characterized in that The connecting column (301) comprises a column body (3010) and a limiting piece (3011) integrally connected with the column body (3010), and the limiting piece (3011) is used for limiting the lifting lug (302).

5. A lifting clamp for a blast furnace tuyere as claimed in claim 4, wherein The lifting lug (302) is provided with a connecting hole (3020), and the lifting lug (302) is connected with the lifting appliance through the connecting hole (3020).

6. A lifting clamp for a blast furnace tuyere as claimed in claim 1, wherein ​ 7. A lifting clamp for a blast furnace tuyere as claimed in claim 6, characterised in that, ​ 8. A lifting clamp for a blast furnace tuyere as claimed in claim 6, characterised in that, ​

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