Automatic inserting device for hot blast stove vault thermocouple in iron making plant

Abstract

The utility model belongs to the technical field of hot-blast stove accessories, and particularly relates to an automatic inserting device for a hot-blast stove vault thermocouple in an iron-making plant, which comprises a fixed bracket, a protective supporting plate and a tripod which are sequentially connected and arranged on a hot-blast stove vault, a pulley I is arranged on the fixed bracket, a pulley II is arranged on the tripod, and a traction steel wire is wound on the pulley I and the pulley II; one end of the traction steel wire is connected with a thermocouple, and the other end is provided with a stepping motor; the tripod comprises a center ring and three supporting legs, and the thermocouple penetrates through the center ring from top to bottom to reach the hot-blast stove vault thermocouple installation position. The device is used for automatic insertion and installation of the thermocouple, the working intensity of workers can be reduced to the greatest extent, the safety risk is effectively avoided, and meanwhile, the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast furnace accessories, in particular to an automatic thermocouple insertion device for a hot blast furnace dome in an ironmaking plant. Background Art

[0002] When installing the thermocouples on the dome of the hot blast furnace in the ironmaking plant, the on-site environment is in a gas and high-temperature area. The thermocouples need to be manually fixed at the installation location of the hot blast furnace thermocouples for preheating. After reaching the appropriate temperature, they can be manually installed. The preheating time is relatively long. The installation location of the hot blast furnace thermocouples will emit high-temperature and high-pressure harmful gases. Operators are exposed to safety hazards such as poisoning and burns in this environment for a long time. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that when installing thermocouples on the dome of a hot blast furnace, operators are exposed to the thermocouple installation location for a long time, which may cause safety hazards such as poisoning and scalding, and proposes an automatic thermocouple insertion device for the dome of a hot blast furnace in an ironmaking plant.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic thermocouple insertion device for a hot blast furnace dome in an ironmaking plant comprises a fixing bracket, a protective support plate and a tripod, which are connected in sequence and arranged on the hot blast furnace dome;

[0006] A first pulley is provided on the fixed bracket, a second pulley is provided on the tripod, and traction wires are wound around the first pulley and the second pulley;

[0007] One end of the traction wire is connected to a thermocouple, and the other end is provided with a stepper motor;

[0008] The tripod includes a center ring and three legs. The thermocouple passes through the center ring from top to bottom and reaches the thermocouple installation place on the hot air furnace arch.

[0009] As a further preferred solution, both the fixed bracket and the tripod are height-adjustable.

[0010] As a further preferred solution, the protective support plate is a three-section folding structure.

[0011] As a further preferred solution, the stepper motor remote signal is connected to the control box.

[0012] As a further preferred solution, the tripod is wrapped with a windshield.

[0013] The utility model discloses a special thermocouple installation device, which is used for automatic insertion of thermocouples before installation of the hot blast furnace vault, can reduce the work intensity of employees to the greatest extent, effectively avoid safety risks, and greatly improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] In the figure: 1. fixed bracket, 2. protective support plate, 3. tripod, 4. pulley 1, 5. pulley 2, 6. traction wire, 7. thermocouple, 8. stepper motor, 9. control box. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0017] An automatic thermocouple insertion device for a hot blast furnace dome in an ironmaking plant comprises a fixing bracket 1, a protective support plate 2, and a tripod 3, which are sequentially connected and arranged on the hot blast furnace dome, and the tripod 3 is located at the thermocouple installation position of the hot blast furnace dome;

[0018] A pulley 1 4 is provided on the fixed bracket 1, and a pulley 2 5 is provided on the tripod 3. A traction wire 6 is wound around the pulley 1 4 and the pulley 2 5. A thermocouple 7 is connected to one end of the traction wire 6, and a stepper motor 8 is provided at the other end. The rotating shaft of the stepper motor 8 is connected to the end of the traction wire 6.

[0019] The rotation shaft of the stepper motor 8 rotates to release the traction wire 6. With the weight of the thermocouple 7, the traction wire 6 passes through the pulley 1 4 and the pulley 2 5, so that the thermocouple 7 can be slowly lowered.

[0020] Since the thermocouple 7 needs to be preheated before installation, preheating is achieved during the slow descent of the thermocouple 7. The preheating work does not require manual operation, thus avoiding potential safety hazards and saving labor time.

[0021] The tripod 3 includes a center ring and three legs. The thermocouple 7 passes through the center ring from top to bottom to reach the thermocouple installation position on the hot blast furnace arch. This structural form of the tripod 3 is a structural form adapted to the utility model, which can improve the accuracy of the thermocouple 7 when it is lowered and aligned with the installation position, thereby ensuring the preheating effect of the thermocouple 7 above the installation position.

[0022] The tripod 3 is wrapped with a wind shield to prevent the hot air stove arch from being affected by strong winds from the outside. The wind shield is optional.

[0023] The fixed support 1 and the tripod 3 are both height-adjustable to suit the working conditions on site.

[0024] The protective support plate 2 has a three-section folding structure. When not in use, the protective support plate 2 can be folded and stored to reduce the floor space.

[0025] The remote signal of the stepper motor 8 is connected to the control box 9, and the control box 9 remotely controls the stepper motor 8. The control box 9 has a display, a switch between manual and automatic functions, and convenient selective control of the stepper motor 8, as well as operation buttons for rising, falling, and stopping.

[0026] In actual operation, the stepper motor 8 controls the traction wire 6 to slowly descend toward the thermocouple installation location, performs preliminary preheating during the process, and descends to the thermocouple installation location. In the early stage, it is inserted 70cm within one minute, stays for 5 minutes, then inserted 40cm, stays for about 5 minutes, and finally inserted 50cm and stays for about 5 minutes for manual installation and fixation.

[0027] When the thermocouple is inserted to the predetermined depth, the power supply of the device is turned off and the equipment can be removed offline by removing the protective support plate to ensure that the on-site working environment is not affected.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic thermocouple insertion device for hot blast furnace dome in an ironmaking plant, characterized in that: It comprises a fixed support (1), a protective support plate (2), and a tripod (3), which are connected in sequence and arranged on the dome of the hot air furnace; The fixed support (1) is provided with a pulley 1 (4), the tripod (3) is provided with a pulley 2 (5), and a traction wire (6) is wound around the pulley 1 (4) and the pulley 2 (5); One end of the traction steel wire (6) is connected to a thermocouple (7), and the other end is provided with a stepping motor (8); The tripod (3) comprises a central ring and three legs, and the thermocouple (7) passes through the central ring from top to bottom to reach the thermocouple installation position on the dome of the hot blast furnace.

2. The automatic thermocouple insertion device for hot blast furnace dome in an ironmaking plant according to claim 1, characterized in that: The height of the fixed bracket (1) is adjustable, and the height of the tripod (3) is adjustable.

3. The automatic thermocouple insertion device for hot blast furnace dome in an ironmaking plant according to claim 1, characterized in that: The protective support plate (2) is a three-section folding structure.

4. The automatic thermocouple insertion device for hot blast furnace dome in an ironmaking plant according to claim 1, characterized in that: The stepper motor (8) is remotely connected to a control box (9) via a signal.

5. The automatic thermocouple insertion device for hot blast furnace dome in an ironmaking plant according to claim 1, characterized in that: The tripod (3) is wrapped with a windshield around its periphery.

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