Converter oxygen blowing and dust removing device based on air curtain principle
By setting up an air distribution duct between the converter oxygen blowing port and the side suction hood to form an air curtain, the problem of flue gas escape during the converter oxygen blowing process was solved, and effective dust collection and absorption were achieved, thus improving the dust removal effect.
Patent Information
- Application Number
- CN202520401714.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In the existing converter oxygen blowing process, the dust hood design is limited by the oxygen blowing pipeline, which leads to flue gas escape. Conventional side suction hoods have unsatisfactory dust removal effect and are difficult to effectively collect the flue gas generated during converter blowing.
The principle of air curtain is adopted. By setting up an air distribution pipe between the oxygen blowing port of the converter and the side suction hood, an air curtain assembly is formed. The air blowing port on the air distribution pipe forms an air curtain when blowing air, which intercepts the smoke and dust, and is then absorbed by the side suction hood.
It effectively intercepts and absorbs the flue gas dust during the oxygen blowing process in the converter, preventing the flue gas from escaping and improving the dust removal effect.
Smart Images
Figure CN223892783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of converter dust removal equipment, specifically to a converter oxygen blowing dust removal device based on the principle of air curtain. Background Technology
[0002] Oxygen blowing and dust removal in converters is an important part of the converter steelmaking process. During the converter blowing process, a large amount of high-temperature flue gas is generated. This high-temperature flue gas is jet-shaped and has a high flow rate. The oxygen blowing in the converter lasts for about 20 minutes, so the dust generated here cannot be ignored.
[0003] However, since the space around the converter is usually very compact during oxygen blowing, and the oxygen blowing pipes need to move back and forth and rise and fall during the process, the design of the dust hood at this point has always been a challenge. Due to the limitations of the oxygen blowing pipes, the dust hood cannot be designed as a movable hood or a top suction hood. Therefore, the current conventional dust removal solution is to install a side suction hood above the oxygen blowing port of the converter to absorb the flue gas. However, the dust removal effect of the side suction hood is often not ideal, and most of the flue gas still escapes, failing to achieve the expected results. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a converter oxygen blowing dust removal device based on the principle of air curtain, which can effectively collect the smoke and dust generated during the converter blowing process and prevent the smoke from escaping.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.
[0006] A converter oxygen blowing dust removal device based on the principle of air curtain includes a side suction hood disposed above the converter oxygen blowing port, the side suction hood being connected to a dust removal pipe; an air distribution pipe is disposed between the converter oxygen blowing port and the side suction hood, one end of the air distribution pipe being connected to a blower, and the other end being a closed structure; an air blowing port is opened on the side wall of the air distribution pipe facing the side suction hood opening, and when blowing air, the air blown out of the air blowing port forms an air curtain component that corresponds to the side suction hood opening and intercepts the smoke and dust at the converter oxygen blowing port so that the side suction hood can absorb the smoke and dust.
[0007] The converter oxygen blowing dust removal device based on the air curtain principle mentioned above includes an upper air curtain, a left air curtain, and a right air curtain. The upper air curtain is opposite to the top surface of the side suction hood, the left air curtain is opposite to the left side of the side suction hood, and the right air curtain is opposite to the right side of the side suction hood.
[0008] In the aforementioned converter oxygen blowing dust removal device based on the principle of air curtain, the size of the air curtain assembly formed by the air outlet on the air distribution pipe is smaller than the size of the side suction hood opening.
[0009] The above converter oxygen blowing dust removal device based on the air curtain principle, the air distribution pipe is in a "J" - shaped structure and encloses the upper part of the converter oxygen blowing port, and the air blowing ports are distributed in a "J" - shaped pattern along with the air distribution pipe.
[0010] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.
[0011] The present utility model provides a converter oxygen blowing dust removal device based on the air curtain principle. By arranging an air distribution pipe between the converter oxygen blowing port and the side suction hood, the air blowing ports on the air distribution pipe are arranged facing the side suction hood opening. When blowing air, the air blowing ports on the air distribution pipe form an air curtain component corresponding to the side suction hood opening, which can intercept the dust generated at the converter oxygen blowing port inside the air curtain, facilitating the side suction hood to completely absorb the dust and avoiding the escape of flue gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic structural diagram of the present utility model;
[0013] Figure 2 is a schematic structural diagram of another perspective of the present utility model;
[0014] Figure 3 is a schematic structural diagram of the side suction hood and the air distribution pipe of the present utility model.
[0015] Where: 1. Side suction hood, 2. Dust removal pipeline, 3. Air distribution pipe, 4. Blower, 5. Side suction hood opening. SPECIFIC EMBODIMENTS
[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.
[0017] A converter oxygen blowing dust removal device based on the air curtain principle, as Figures 1 to 3 shown, includes a side suction hood 1 arranged above the side of the converter oxygen blowing port and an air distribution pipe 3 arranged between the converter oxygen blowing port and the side suction hood 1. The side suction hood 1 is connected to the dust removal pipeline 2, and the dust removal pipeline 2 is connected to a dust removal fan and forms a negative pressure environment at the side suction hood opening 5.
[0018] The air distribution pipe 3 is arranged corresponding to the side suction hood opening 5 of the side suction hood 1. One end of the air distribution pipe 3 is connected to the blower 4, and the other end is a closed structure.
[0019] The air distribution duct 3 has a Z-shaped structure and surrounds the oxygen blowing port of the converter. Air blowing ports are opened on the side wall of the air distribution duct 3 facing the side suction hood 5. The air blowing ports are distributed in a Z-shape with the air distribution duct 3. When blowing air, the air blown out of the air blowing ports forms an air curtain assembly to intercept the smoke and dust at the oxygen blowing port of the converter. The air curtain assembly includes an upper air curtain, a left air curtain and a right air curtain. The upper air curtain is opposite to the top surface of the side suction hood 1, the left air curtain is opposite to the left side surface of the side suction hood 1, and the right air curtain is opposite to the right side surface of the side suction hood 1.
[0020] When blowing air, the size of the air curtain assembly formed by the air distribution pipe 3 is smaller than the size of the side suction hood opening 5, which makes it easier to absorb all the smoke and dust intercepted in the air curtain assembly and prevent the smoke from escaping.
[0021] The side suction hood 1 is positioned 1.5 meters outside the air distribution duct 3, such as... Figure 2 As shown, the air distribution duct 3 is closer to the converter oxygen inlet than the side suction hood 1.
[0022] When the converter is blowing oxygen, the blower 4 is turned on, and the airflow is ejected at high speed through the air outlet on the air distribution pipe 3, forming three air curtains on the top, left and right sides of the side suction hood 1, which effectively isolates the smoke and dust generated by the oxygen blowing from the outside. At the same time, since the side suction hood is connected to the dust removal pipe, a negative pressure environment is formed at the hood opening under the action of the dust removal fan, which is conducive to the side suction hood absorbing the smoke and dust intercepted in the air curtain assembly.
[0023] This invention provides a converter oxygen blowing dust removal device based on the principle of air curtain. By setting an air distribution pipe between the converter oxygen blowing port and the side suction hood, with the air blowing nozzles on the air distribution pipe facing the side suction hood opening, the air blowing nozzles on the air distribution pipe form an air curtain component corresponding to the side suction hood opening during air blowing. This can intercept the smoke and dust generated at the converter oxygen blowing port inside the air curtain, making it easier for the side suction hood to absorb all the smoke and dust and preventing the smoke and dust from escaping.
Claims
1. A converter oxygen blowing dust removal device based on the principle of air curtain, comprising a side suction hood (1) disposed above the oxygen blowing port of the converter, the side suction hood (1) being connected to a dust removal pipe (2); characterized in that: A distribution pipe (3) is provided between the oxygen blowing port of the converter and the side suction hood (1). One end of the distribution pipe (3) is connected to the blower (4), and the other end is a closed structure. The side wall of the distribution pipe (3) facing the side suction hood opening (5) is provided with an air blowing port. When blowing air, the air blown out of the air blowing port forms an air curtain assembly that corresponds to the side suction hood opening (5) and intercepts the smoke and dust at the oxygen blowing port of the converter so that the side suction hood (1) can absorb the smoke and dust.
2. The converter oxygen blowing dust removal device based on the air curtain principle according to claim 1, characterized in that: The air curtain assembly includes an upper air curtain, a left air curtain and a right air curtain. The upper air curtain is opposite to the top surface of the side suction hood (1), the left air curtain is opposite to the left side surface of the side suction hood (1), and the right air curtain is opposite to the right side surface of the side suction hood (1).
3. The converter oxygen blowing dust removal device based on the air curtain principle according to claim 1, characterized in that: The size of the air curtain assembly formed by the air outlet on the air distribution pipe (3) is smaller than the size of the side suction hood opening (5).
4. The converter oxygen blowing dust removal device based on the air curtain principle according to claim 1, characterized in that: The air distribution pipe (3) has a Z-shaped structure and surrounds the oxygen blowing port of the converter. The air blowing ports are distributed in a Z-shape along with the air distribution pipe (3).