Cleaning device for inner wall of tuyere small sleeve of blast furnace

Abstract

The utility model discloses a blast furnace tuyere small sleeve inner wall cleaning device, which relates to the field of blast furnace cleaning devices and comprises a cleaning rod with a hollow cavity inside, cleaning heads are arranged on two sides of the cleaning rod, a limit portion matched with an inner hole of a small sleeve is arranged at the front end of the cleaning rod, and a driving mechanism is arranged at the rear end of the cleaning rod. The driving mechanism rotates to drive the cleaning rod to rotate and clean the inner wall of the small sleeve through the cleaning head; the device can efficiently clean the inner wall of the small sleeve and remove substances adhered to the inner wall.

Description

Technical Field

[0001] The utility model relates to the field of blast furnace cleaning devices, in particular to a blast furnace tuyere small sleeve inner wall cleaning device. Background Art

[0002] A blast furnace is a device used to smelt iron ore and produce pig iron. It is one of the key facilities in the metallurgical industry. A blast furnace is usually a large vertical cylinder with different internal areas, including the upper material column area, the middle reduction area and the lower slag area. In blast furnace operation, iron ore, coke and limestone are loaded into the top of the blast furnace, and then air is sprayed in from the bottom through the tuyere. Under high temperature conditions, the heat generated by the combustion of coke is used to reduce the oxygen in the iron ore to produce pig iron. At the same time, limestone is used to absorb impurities in the furnace and form slag.

[0003] The blast furnace tuyere sleeve refers to the component in the tuyere area of ​​the blast furnace, which is used to adjust and control the air volume and tuyere shape in the furnace. When in use, the blast furnace tuyere sleeve sprays air through the tuyere to promote combustion and ore reduction reactions. Therefore, the tuyere sleeve plays an important role in this process.

[0004] Since cleaning the tuyere sleeve of a blast furnace is one of the important tasks in the maintenance and operation of a blast furnace, it aims to ensure the smooth flow of the tuyere sleeve and maintain normal smelting operation, so it needs to be cleaned regularly. However, most of the existing technologies use high-pressure water guns and pneumatic tools to remove slag, dust, crust and other materials accumulated inside the tuyere sleeve. However, the cleaning is not thorough enough, resulting in residual slag, dust and other materials in the tuyere sleeve, affecting the airflow distribution in the furnace and reducing the smelting efficiency. Utility Model Content

[0005] The utility model aims to provide a device for cleaning the inner wall of a blast furnace tuyere sleeve in view of the shortcomings of the prior art that the cleaning is not thorough enough, resulting in residual slag, dust and other materials still existing in the tuyere sleeve, affecting the airflow distribution in the furnace and reducing the smelting efficiency.

[0006] The utility model is realized by the following technical solutions:

[0007] A device for cleaning the inner wall of a blast furnace tuyere small sleeve comprises a cleaning rod with a hollow cavity inside, cleaning heads are arranged on both sides of the cleaning rod, a limiting portion cooperating with the inner hole of the small sleeve is arranged at the front end of the cleaning rod, and a driving mechanism is arranged at the rear end of the cleaning rod. The driving mechanism rotates to drive the cleaning rod to rotate and clean the inner wall of the small sleeve through the cleaning head.

[0008] Preferably, the cleaning rod has a diameter of 30 mm.

[0009] Preferably, the cleaning head comprises a connecting rod and a steel wire, one side of the connecting rod is mounted on the cleaning rod, and the other side of the connecting rod is mounted with the steel wire.

[0010] Preferably, the limiting portion and the cleaning rod form an angle of 45°.

[0011] Preferably, the limiting portion includes a connecting end and a protective sleeve; one side of the connecting end is connected to the cleaning rod, and the other end of the connecting end is connected to the protective sleeve.

[0012] Preferably, the cleaning rod is also provided with an air outlet, and the cleaning rod is connected to a high-pressure fan for providing wind force to the air outlet.

[0013] Preferably, a plurality of air outlet holes are provided, and the plurality of air outlet holes are on the same horizontal line.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The inner wall of the small sleeve can be cleaned efficiently. The cleaning head is driven by the rotation of the cleaning rod. The device can clean the inner wall of the small sleeve efficiently and remove the substances adhering to the inner wall.

[0016] The driving mechanism can be manual or electric, providing flexibility and adaptability to meet different usage scenarios and needs; the air outlet provided on the cleaning rod is combined with the high-pressure fan to assist cleaning by blowing air, thereby improving the cleaning effect, especially for cases where the adhesion is more stubborn. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A.

[0019] Explanation of the accompanying drawings: 1. cleaning rod; 2. cleaning head; 3. limiting part; 4. driving mechanism; 5. air outlet; 21. connecting rod; 22. steel wire; 31. connecting end; 32. protective cover. DETAILED DESCRIPTION

[0020] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but is not intended to limit the present invention. 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.

[0021] refer to Figure 1 and Figure 2As shown, the utility model provides a device for cleaning the inner wall of a small sleeve of a blast furnace tuyere, comprising a cleaning rod 1 with a hollow cavity inside, cleaning heads 2 are arranged on both sides of the cleaning rod 1, a limiting portion 3 cooperating with the inner hole of the small sleeve is arranged at the front end of the cleaning rod 1, and a driving mechanism 4 is arranged at the rear end of the cleaning rod 1, and the driving mechanism 4 rotates to drive the cleaning rod 1 to rotate and clean the inner wall of the small sleeve through the cleaning head 2; in this embodiment, the driving mechanism 4 can be in the form of manual drive (using a wrench) or in the form of electric drive (electric drill, motor). Obviously, in order to realize that the driving mechanism 4 drives the cleaning head 2 to rotate, the driving mechanism 4 can also be other forms of structure.

[0022] In the above embodiment, the cleaning rod 1 is a pipe with a diameter of 30 mm, and its material can be a steel pipe.

[0023] The cleaning head 2 includes a connecting rod 21 and a steel wire 22. One side of the connecting rod 21 is installed on the cleaning rod 1. When the connecting rod 21 and the cleaning rod 1 are connected, they can be welded, or a mounting hole can be provided on the cleaning rod 1, and then the connecting rod 21 is inserted into the mounting hole, or connected to the cleaning rod 1 by threads or bolts; the steel wire 22 is installed on the other side of the connecting rod 21; in this embodiment, the cleaning head 2 is composed of the connecting rod 21 and the steel wire 22, which is quick to obtain and easy to use. At the same time, the steel wire 22 helps to effectively clean the inner wall of the small sleeve and improves the durability of the cleaning head.

[0024] The limiting portion 3 forms an angle of 45° with the cleaning rod 1, thereby facilitating the installation and use of the small sleeve inner wall cleaning device; the limiting portion 3 includes a connecting end 31 and a protective sleeve 32; one side of the connecting end 31 is connected to the cleaning rod 1, and the other end of the connecting end 31 is connected to the protective sleeve 32; the protective sleeve 32 is made of high temperature resistant material to avoid melting of the limiting portion 3 due to the temperature in the blast furnace and improve the service life.

[0025] The driving mechanism 4 is connected to the cleaning head 2 via a connecting bearing; the bearing is made of high temperature resistant material to avoid melting damage to the connecting bearing caused by the temperature in the blast furnace and to increase the service life.

[0026] The cleaning rod 1 is also provided with an air outlet 5. When in use, a high-pressure fan is connected to the side of the cleaning rod 1 close to the driving mechanism 4. The wind generated by the high-pressure fan is discharged through the air outlet 5. The wind generated by the high-pressure fan can blow the inner wall of the small sleeve through the air outlet 5, so as to clean the adhesive on the inner wall of the small sleeve while blowing air, thereby efficiently removing the adhesive on the inner wall of the small sleeve; a plurality of air outlet holes 5 are provided, and the plurality of air outlet holes 5 are on the same horizontal line.

[0027] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A blast furnace tuyere small sleeve inner wall cleaning device, characterized in that: The invention comprises a cleaning rod (1) with a hollow cavity inside, cleaning heads (2) are arranged on both sides of the cleaning rod (1), a limiting portion (3) matched with the inner hole of a small sleeve is arranged at the front end of the cleaning rod (1), and a driving mechanism (4) is arranged at the rear end of the cleaning rod (1), and the driving mechanism (4) rotates to drive the cleaning rod (1) to rotate and clean the inner wall of the small sleeve through the cleaning head (2).

2. The blast furnace tuyere small sleeve inner wall cleaning device according to claim 1 is characterized in that: The cleaning rod (1) has a diameter of 30 mm.

3. The blast furnace tuyere small sleeve inner wall cleaning device according to claim 1 is characterized in that: The cleaning head (2) comprises a connecting rod (21) and a steel wire (22); one side of the connecting rod (21) is mounted on the cleaning rod (1), and the other side of the connecting rod (21) is mounted with the steel wire (22).

4. The blast furnace tuyere small sleeve inner wall cleaning device according to claim 1 is characterized in that: The limiting portion (3) and the cleaning rod (1) form an angle of 45°.

5. The blast furnace tuyere small sleeve inner wall cleaning device according to claim 4 is characterized in that: The limiting portion (3) comprises a connecting end (31) and a protective sleeve (32); one end of the connecting end (31) is connected to the cleaning rod (1), and the other end of the connecting end (31) is connected to the protective sleeve (32).

6. The blast furnace tuyere small sleeve inner wall cleaning device according to claim 1 is characterized in that: The cleaning rod (1) is also provided with an air outlet (5), and the cleaning rod (1) is connected to a high-pressure fan for providing wind force to the air outlet (5).

7. The blast furnace tuyere small sleeve inner wall cleaning device according to claim 6 is characterized in that: A plurality of air outlet holes (5) are provided, and the plurality of air outlet holes (5) are on the same horizontal line.

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