Automatic telescopic dust cover for argon blowing station of steel plant
By designing an automatic telescopic dust removal hood at the argon blowing station in the steel plant, and using a jet nozzle to spray nitrogen gas to guide the flue gas into the purification treatment device, the problem of flue gas diffusion was solved, achieving efficient flue gas collection and treatment, and improving the working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN IRON & STEEL GRP INT ENG CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional dust hoods in argon blowing stations are ineffective at controlling the outward diffusion of flue gas, leading to flue gas escape, severely deteriorating the workshop working environment, and endangering the health of operators.
Design an automatic telescopic dust collection hood that uses a jet nozzle to spray nitrogen gas to forcefully guide the flue gas, and works in conjunction with the suction of the flue gas purification device to improve the flue gas collection efficiency.
It enables rapid and efficient collection and treatment of flue gas, prevents flue gas diffusion, improves the working environment, and protects the health of operators.
Smart Images
Figure CN224411812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dust collection hoods for argon blowing stations in steel plants, specifically an automatic telescopic dust collection hood for argon blowing stations in steel plants. Background Technology
[0002] During the argon blowing process in steel plants, molten steel generates a large amount of high-temperature, dust-laden flue gas. This flue gas is characterized by high flow rate, high temperature, and high dust concentration. Traditional dust hoods in argon blowing stations mostly adopt fixed or simple telescopic structures, relying primarily on negative pressure suction to collect the flue gas. However, due to the violent turbulence of the molten steel inside the ladle during argon blowing, the generated flue gas diffuses outside the dust hood. Relying solely on the negative pressure suction of the dust hood itself is insufficient to effectively control the flue gas leakage. Furthermore, this leads to a large amount of flue gas escaping into the workshop, severely deteriorating the working environment and endangering the health of operators.
[0003] Therefore, this utility model provides an automatic telescopic dust removal hood for argon blowing stations in steel plants to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an automatic telescopic dust removal hood for argon blowing stations in steel plants, thus solving the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic telescopic dust hood for an argon blowing station in a steel plant, comprising a support frame, a flue gas purification device body disposed on the right side of the support frame, a base disposed at the middle of the bottom of the support frame, a steel ladle disposed at the middle of the top of the base, an argon blowing station body fixedly mounted on the right side of the top of the base, a dust suction hood disposed at the top of the support frame, a connecting frame fixedly mounted at the top of the dust suction hood, a cylinder fixedly mounted at the middle of the top of the support frame, a telescopic rod fixedly mounted at the output end of the cylinder, the other end of the telescopic rod fixedly connected to the connecting frame, and two sets of stabilizing rods fixedly mounted at the top of the dust suction hood, both sets of stabilizing rods being slidably connected to the top of the support frame.
[0006] Preferably, a first connecting pipe is fixedly installed at the top of the dust collection hood, and a high-temperature telescopic air duct is sealed to the other end of the first connecting pipe. The other end of the high-temperature telescopic air duct is sealed to the main body of the flue gas purification device. Fixed pipes are fixedly installed at the four corners of the bottom of the inside of the dust collection hood. Several sets of air jets are fixedly installed on each set of fixed pipes. A circular pipe is fixedly installed at the top of the dust collection hood. A connecting pipe is sealed to each set of fixed pipes. The other end of each set of connecting pipes is sealed to the circular pipe. A second connecting pipe is fixedly installed at the top of the circular pipe. A high-temperature telescopic air duct is sealed to the other end of the second connecting pipe. An electromagnetic air valve is fixedly installed on the second connecting pipe.
[0007] Preferably, the jet direction of each group of jet heads is towards the connection between the dust hood and the first connecting pipe.
[0008] Preferably, the outer wall of the dust collection hood has a cavity inside, and the cavity is filled with aluminum silicate fiber.
[0009] Preferably, a PLC control panel is fixedly installed on the outer wall of the front end of the flue gas purification and treatment device.
[0010] Preferably, support plates are fixedly installed at the four corners of the bottom of the support frame, and each set of support plates has mounting holes.
[0011] Beneficial effects
[0012] This utility model provides an automatic telescopic dust removal hood for argon blowing stations in steel plants. Compared with the prior art, it has the following advantages:
[0013] In this device, through the arrangement of a dust suction hood, a fixed pipe, a jet nozzle, a circular pipe, a connecting pipe, a second connecting pipe, and a high-temperature telescopic air pipe, the nitrogen gas flow ejected from the jet nozzle can forcefully guide the flue gas inside the dust suction hood, accelerating the flow of the flue gas towards the first connecting pipe. This creates a synergistic effect with the suction force of the flue gas purification device body, improving the flue gas collection efficiency and ensuring that the flue gas can quickly and efficiently enter the dust removal system for treatment, avoiding the problem of incomplete dust removal caused by flue gas diffusion. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0016] Figure 3 This is a schematic cross-sectional view of the present invention;
[0017] Figure 4This is a utility model Figure 3 Enlarged structural diagram at point B;
[0018] Figure 5 This is a side view structural diagram of the present invention.
[0019] In the diagram: 1. Support frame; 2. Main body of flue gas purification device; 3. Base; 4. Steel ladle; 5. Main body of argon blowing station; 6. Cylinder; 7. Dust hood; 8. Connecting frame; 9. Telescopic rod; 10. Stabilizing rod; 11. First connecting pipe; 12. High-temperature telescopic air duct; 13. Fixed pipe; 14. Jet nozzle; 15. Circular pipe; 16. Connecting pipe; 17. Second connecting pipe; 18. High-temperature telescopic air duct; 19. Electromagnetic valve; 20. PLC control panel; 21. Support plate; 22. Mounting hole. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1:
[0022] Please see Figure 1-5 An automatic telescopic dust removal hood for an argon blowing station in a steel plant includes a support frame 1. A flue gas purification device body 2 is installed on the right side of the support frame 1. A base 3 is installed at the middle of the bottom of the support frame 1. A steel ladle 4 is installed at the middle of the top of the base 3. An argon blowing station body 5 is fixedly installed on the right side of the top of the base 3. A dust collection hood 7 is installed at the top of the support frame 1. A connecting frame 8 is fixedly installed at the top of the dust collection hood 7. A cylinder 6 is fixedly installed at the middle of the top of the support frame 1. A telescopic rod 9 is fixedly installed at the output end of the cylinder 6. The other end of the telescopic rod 9 is fixedly connected to the connecting frame 8. Two sets of stabilizing rods 10 are also fixedly installed at the top of the dust collection hood 7. Both sets of stabilizing rods 10 are slidably connected to the top of the support frame 1.
[0023] A first connecting pipe 11 is fixedly installed at the top of the dust hood 7. The other end of the first connecting pipe 11 is sealed and connected to a high-temperature telescopic air duct 12. The other end of the high-temperature telescopic air duct 12 is sealed and connected to the main body 2 of the flue gas purification treatment device. Fixed pipes 13 are fixedly installed at the four corners of the bottom of the dust hood 7. Several sets of air jets 14 are fixedly installed on each set of fixed pipes 13. A circular pipe 15 is fixedly installed at the top of the dust hood 7. A connecting pipe 16 is sealed and connected to each set of fixed pipes 13. The other end of each set of connecting pipes 16 is sealed and connected to the circular pipe 15. A second connecting pipe 17 is fixedly installed at the top of the circular pipe 15. A high-temperature telescopic air duct 18 is sealed and connected to the other end of the second connecting pipe 17. An electromagnetic air valve 19 is fixedly installed on the second connecting pipe 17.
[0024] The jetting direction of each group of jet heads 14 is towards the connection between the dust hood 7 and the first connecting pipe 11; a PLC control panel 20 is fixedly installed on the outer wall of the front end of the flue gas purification treatment device body 2.
[0025] For ease of control, the flue gas purification unit 2, the argon blowing station 5, the cylinder 6, and the solenoid valve 19 are all electrically connected to the PLC control panel 20 and to an external power supply. The high-temperature telescopic pipe 18 is also sealed to an external nitrogen tank. When using this device, while the operator is transporting a ladle to the base 3 via a ladle cart and processing the ladle through the argon blowing station 5, the operator can activate the cylinder 6 to raise or lower the dust extraction hood 7 to a suitable height via the telescopic rod 9. This improves the suction of flue gas by the dust extraction hood 7. Simultaneously, the operator can open the solenoid valve. 19. This allows nitrogen stored in the external nitrogen tank to be transported from the high-temperature telescopic pipe 18, the second connecting pipe 17, the circular pipe 15, and the connecting pipe 16 to the fixed pipe 13, and then sprayed out from the jet nozzle 14. The above arrangement allows the nitrogen airflow sprayed from the jet nozzle 14 to forcefully guide the flue gas in the dust collection hood 7, accelerating the flow of the flue gas towards the first connecting pipe 11. This creates a synergistic effect with the suction of the flue gas purification device 2, improving the flue gas collection efficiency and ensuring that the flue gas can quickly and efficiently enter the dust removal system for treatment, avoiding the problem of incomplete dust removal caused by flue gas diffusion. Then, the flue gas enters the flue gas purification device body 2 for processing.
[0026] Example 2:
[0027] Please see Figure 1-5 This embodiment provides a technical solution based on embodiment one: the outer wall of the dust hood 7 has a cavity inside, and the cavity is filled with aluminum silicate fiber; support plates 21 are fixedly installed at the four corners of the bottom of the support frame 1, and each set of support plates 21 has a mounting hole 22.
[0028] In this device, the cavity and the interior of the cavity are filled with aluminum silicate fiber. Because aluminum silicate fiber has high temperature resistance and good heat insulation properties, it can reduce the temperature of the outer wall of the dust collector 7, prevent the material properties from deteriorating, deforming or even being damaged due to long-term heating, extend the service life of the dust collector 7, and protect the surrounding equipment and building structures from the effects of high temperature, thus making the device more practical.
[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic telescopic dust hood for an argon blowing station in a steel plant, comprising a support frame (1), characterized in that: The support frame (1) is provided with a flue gas purification treatment device body (2) on the right side. The support frame (1) is provided with a base (3) at the middle position of the bottom end. The base (3) is provided with a steel ladle (4) at the middle position of the top end. The argon blowing station body (5) is fixedly installed on the right side of the top end of the base (3). The support frame (1) is provided with a dust suction hood (7) at the top end. The dust suction hood (7) is fixedly installed with a connecting frame (8) at the top end. The support frame (1) is fixedly installed with a cylinder (6) at the middle position of the top end. The cylinder (6) is fixedly installed with a telescopic rod (9) at the output end. The other end of the telescopic rod (9) is fixedly connected to the connecting frame (8). The dust suction hood (7) is also fixedly installed with two sets of stabilizing rods (10) at the top end. Both sets of stabilizing rods (10) are slidably connected to the top end of the support frame (1).
2. The automatic telescopic dust removal hood for an argon blowing station in a steelmaking plant according to claim 1, characterized in that: The top of the dust hood (7) is fixedly installed with a first connecting pipe (11), and the other end of the first connecting pipe (11) is sealed to a high-temperature telescopic air duct (12). The other end of the high-temperature telescopic air duct (12) is sealed to the main body (2) of the flue gas purification treatment device. Fixed pipes (13) are fixedly installed at the four corners of the bottom of the dust hood (7). Several sets of jet nozzles (14) are fixedly installed on each set of fixed pipes (13). The top of the dust hood (7) is fixedly installed with a circular pipe (15). A connecting pipe (16) is sealed to each set of fixed pipes (13). The other end of each set of connecting pipes (16) is sealed to the circular pipe (15). The top of the circular pipe (15) is fixedly installed with a second connecting pipe (17). The other end of the second connecting pipe (17) is sealed to a high-temperature telescopic air duct (18). An electromagnetic valve (19) is fixedly installed on the second connecting pipe (17).
3. The automatic telescopic dust removal hood for an argon blowing station in a steelmaking plant according to claim 2, characterized in that: The jetting direction of each set of jet heads (14) is towards the connection between the dust hood (7) and the first connecting pipe (11).
4. The automatic telescopic dust removal hood for an argon blowing station in a steel plant according to claim 1, characterized in that: The dust collection hood (7) has a cavity inside its outer wall, and the cavity is filled with aluminum silicate fiber.
5. The automatic telescopic dust removal hood for an argon blowing station in a steelmaking plant according to claim 1, characterized in that: A PLC control panel (20) is fixedly installed on the outer wall of the front end of the main body (2) of the flue gas purification treatment device.
6. The automatic telescopic dust removal hood for an argon blowing station in a steel plant according to claim 1, characterized in that: Support plates (21) are fixedly installed at the four corners of the bottom of the support frame (1), and each set of support plates (21) has mounting holes (22).