Special tool for replacing tuyere air supply device of blast furnace

Abstract

The utility model discloses a special tool for replacing a tuyere air supply device of a blast furnace, which comprises a base, the base consists of a bottom support and a bottom surface sealing plate, an expansion joint supporting surface and an expansion joint surface supporting groove are mounted on the base, a vertical support and side supports are arranged at one end of the base, and the side supports are arranged on two sides of the expansion joint surface supporting groove. Arc-shaped plates are connected to the tops of the vertical supports and the side supports; during use, the bottom connecting face of the air supply device expansion joint is placed in the expansion joint face supporting groove and attached to the expansion joint supporting face, and the outer side of the upper portion of the air supply device expansion joint is attached to the arc-shaped plate. Compared with the prior art, a forklift is matched with the special tool for replacing the tuyere air supply device of the blast furnace, so that the expansion joint of the air supply device can be easily and stably lifted and conveyed to a reasonable mounting position, the time required for replacement is shortened, the labor intensity of workers is greatly reduced, and the working efficiency is improved. And safety accidents caused by up-and-down hoisting when the chain block is used are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a metallurgical industry material distributing equipment technical field especially relates to a special tool of blast furnace replacement tuyere air supply device. BACKGROUND

[0002] The blast furnace ironmaking is a continuous production process, the blast furnace air supply middle section equipment is the key component on the blast furnace air supply pipeline, works in the high temperature and high pressure production environment, and the service life and reliability directly influence the normal production of the blast furnace.

[0003] At present, the expansion joint of the tuyere platform blowpipe of the blast furnace above 1500m³ is usually replaced by the way of welding the lifting point of the furnace skin, and the expansion joint is lifted by the artificial chain to carry out construction, and the number of people is about 4 each time, and the replacement time is about 3 hours.

[0004] The patent CN218968782U discloses a blast furnace air supply middle section replacement equipment, improves the existing forklift, disassembles and installs the air supply middle section equipment, shortens the maintenance time, and improves the maintenance efficiency, but the equipment structure is relatively complex, and the cost is high. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a special tool of blast furnace replacement tuyere air supply device, which is simple in structure, convenient to use, reduces the artificial and replacement time by using the tool in cooperation with the existing mechanical equipment.

[0006] In order to achieve the technical purpose, the utility model adopts the following scheme:

[0007] A special tool of blast furnace replacement tuyere air supply device, including base, the base is composed of bottom support and bottom surface sealing plate, the base is installed with expansion joint support surface and expansion joint surface support groove, one end of the base is provided with vertical support and side support, the side support is arranged on the both sides of the expansion joint surface support groove, and the top of the vertical support and the side support is connected with the arc plate.

[0008] Compared with the prior art, the utility model has the advantages of:

[0009] The utility model discloses simple structure, convenient to use, using ordinary fork truck and the special tool of the utility model blast furnace replacement tuyere air supply device cooperation can easily and stably lift and transport air supply device expansion joint to reasonable installation position, reduce the time required when replacing, greatly reduce the labor intensity of worker, and avoid the safety accident that appears when using the safety accident that appears when using the inverted chain and lifting.

[0010] Further, the arc-shaped plate is arranged at an angle with the base plane, and the angle is consistent with the inclination angle of the expansion joint of the air supply device.

[0011] Further, the bottom supports are arranged in parallel on both sides of the bottom of the base, the bottom surface sealing plate is arranged between the two bottom supports, the expansion joint support surface is arranged above the bottom supports and the bottom surface sealing plate, and the expansion joint surface support groove is arranged on the expansion joint support surface.

[0012] Further, the expansion joint surface support groove has a quadrilateral structure, and the expansion joint surface support groove is fixedly connected with the expansion joint support surface.

[0013] Further, the hand-operated hoist is arranged on the side support. DETAILED DESCRIPTION

[0014] Figure 1 It is a front view of the utility model embodiment.

[0015] Figure 2 It is a side view of the utility model embodiment.

[0016] Figure 3 It is a top view of the utility model embodiment.

[0017] Figure 4 It is Figure 2 It is a view along line A-A.

[0018] Figure 5 It is a reference diagram of the utility model embodiment in use.

[0019] In the drawing, 1 is a vertical support, 2 is a side support, 3 is an arc-shaped plate, 4 is a bottom support, 5 is a bottom surface sealing plate, 6 is an expansion joint surface support groove, 7 is an expansion joint support surface, and 8 is an expansion joint of an air supply device. DETAILED DESCRIPTION

[0020] In order to fully understand the purpose, features and effects of the utility model, the utility model is described in detail through the following specific embodiments, but the utility model is not limited to this.

[0021] Reference Figures 1 to 5The utility model provides a special tool of blast furnace replaces tuyere air supply device, including base, base is by bottom support 4 and bottom surface closing plate 5 is composed, two bottom supports 4 parallel arrangement are in the both sides of base bottom, and bottom support 4 is channel steel. Bottom surface closing plate 5 is arranged between two bottom supports 4, and bottom surface closing plate 5 is metal sheet, can be a whole piece also can be many pieces spliced. Bottom surface closing plate 5 and bottom support 4 top install expansion joint support surface 7, and expansion joint support surface 7 is metal sheet. Expansion joint support surface 7 is installed with expansion joint surface support groove 6, is used for stable, supports air supply device expansion joint 8 connecting surface;Expansion joint surface support groove 6 is quadrilateral structure, and air supply device expansion joint 8 contact surface horizontal placement is convenient. In the embodiment, expansion joint surface support groove 6 is vertically welded on expansion joint support surface 7 by 12mm thick steel plate.

[0022] One end of base is provided with vertical support 1 and side support 2, and the side support 2 is arranged on the two sides of the expansion joint surface support groove 6, and the bottom of the vertical support 1 and the side support 2 is fixedly connected with the base or the expansion joint support surface 7, and the top of the vertical support 1 and the side support 2 is connected with the arc-shaped plate 3, which is used for stabilizing the air supply device expansion joint 8, so that it is not tilted, and the arc-shaped plate 3 is arranged at an angle with the plane of the base, and the angle is consistent with the inclination angle of the air supply device expansion joint 8. When in use, the bottom connecting surface of the air supply device expansion joint 8 is placed in the expansion joint surface support groove 6 and is attached to the expansion joint support surface 7, and the upper outer side of the air supply device expansion joint 8 is tightly attached to the arc-shaped plate 3.

[0023] The side support 2 is also provided with a hand-operated hoist, and when the air supply device expansion joint 8 is placed in the expansion joint surface support groove 6, the bottom connecting surface is attached to the expansion joint support surface 7, and the upper outer side is attached to the arc-shaped plate 3, the hand-operated hoist is fixed on the side support 2 and is tightly fixed with the body of the air supply device expansion joint 8, so that the air supply device expansion joint 8 is prevented from moving during the movement.

[0024] The materials of the various components in the embodiment are steel, and the connection mode is welding, and full welding construction is adopted to ensure the structural strength of the special tool.

[0025] The working principle of the utility model is as follows: the bottom connecting surface of the air supply device expansion joint 8 is placed in the expansion joint surface support groove 6 and is attached to the expansion joint support surface 7, the upper outer side of the air supply device expansion joint 8 is tightly attached to the arc-shaped plate 3 for stable support, the hand-operated hoist is fixed on the side support 2 and is tightly fixed with the body of the air supply device expansion joint 8, the forks of the forklift are inserted from the lower part of the bottom support 4 of the base, the whole special tool is lifted and transported to the installation position, the air supply device expansion joint 8 is fastened by the worker, the special tool is unloaded by the forklift, and the subsequent construction is completed by the worker. Through actual use, the whole construction process is less than 1 hour, the replacement and installation time is greatly shortened, the labor cost is saved, and the actual production operation time of the blast furnace system is increased.

[0026] Finally, it should be noted that the above are only preferred embodiments of the present application, of course, those skilled in the art can make changes and modifications to the present application, provided that these modifications and changes are within the scope of the present application claims and equivalent technology, should be considered as the protection scope of the present application.

Claims

1. A special tool for replacing a tuyere air supply device in a blast furnace, comprising a base consisting of a bottom support (4) and a bottom surface closure plate (5), characterised in that, The base is provided with an expansion joint supporting surface (7) and an expansion joint surface supporting groove (6), one end of the base is provided with a vertical support (1) and a side support (2), the side support (2) is arranged on both sides of the expansion joint surface supporting groove (6), and the top of the vertical support (1) and the side support (2) is connected with an arc-shaped plate (3); in use, the bottom connecting surface of the air supply device expansion joint (8) is placed in the expansion joint surface supporting groove (6) and is attached to the expansion joint supporting surface (7), and the outer side of the upper part of the air supply device expansion joint (8) is attached to the arc-shaped plate (3).

2. A special tool for changing a tuyere air supply device of a blast furnace according to claim 1, characterized in that, The arc-shaped plate (3) is arranged at an included angle with the plane of the base, and the included angle is consistent with the inclination angle of the air supply device expansion joint (8).

3. A special tool for changing a tuyere air supply device of a blast furnace according to claim 1, characterized in that, The bottom supports (4) are arranged in parallel on both sides of the bottom of the base, the bottom surface sealing plate (5) is arranged between the two bottom supports (4), the expansion joint supporting surface (7) is arranged above the bottom supports (4) and the bottom surface sealing plate (5), and the expansion joint surface supporting groove (6) is arranged on the expansion joint supporting surface (7).

4. A special tool for changing a tuyere air supply device of a blast furnace according to claim 1, characterized in that, The expansion joint surface supporting groove (6) has a quadrilateral structure, and the expansion joint surface supporting groove (6) is fixedly connected with the expansion joint supporting surface (7).

5. The specialized tool for changing a tuyere air supply device of a blast furnace according to claim 1, characterized in that, The side support (2) is provided with a hand-operated hoist.

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