Connecting structure for coal injection gun and air hole of converter

Abstract

The utility model relates to a connecting structure of a converter coal injection gun and an air hole, which comprises an air hole seat, a coal gun pipe, a silencing sheet gland and a coal gun connector, the air hole seat is disc-shaped, one side of the air hole seat is provided with a connecting table and a first positioning table, the center of the air hole seat is provided with a coal gun channel, and the side wall of the air hole seat is provided with a 7-shaped pressing sheet; the silencing piece gland is arranged to be in a disc shape, a fastening table and a second positioning table are arranged on one side of the silencing piece gland, a sealing table is arranged close to the second positioning table, and a notch is formed in the fastening table. The coal gun pipe is fixedly arranged in the center of a sealing table in the center of the silencing sheet gland, the coal gun connector is connected to one side of the coal gun pipe, the coal gun pipe is inserted into a coal gun channel of the air hole seat, and the sealing table is embedded into the coal gun channel for sealing while the first positioning table and the second positioning table abut against each other; the pressing piece penetrates through the notch and then is tightly pressed on the fastening table. The working environment can be effectively improved, the hearing impairment risk of workers is reduced, and the safety of the workers is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of converter equipment, and in particular to a connection structure between a converter coal injection gun and an air eye. Background Art

[0002] During the converter production process, fuel is typically injected into the converter to increase the melting temperature. Coal injection (PPI) is a common method for increasing or controlling converter operation. The PPI lance is inserted into the plenum chamber for PPI. During this process, PPI air leaks from the lance's outer wall, generating significant noise. This can hinder communication between control and back-of-house personnel, and create high noise levels that pose occupational hazards to operators. Furthermore, if the lance becomes clogged during PPI, it can be thrown out, potentially causing injuries. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the relevant technology, the present application provides a connection structure between the converter coal injection gun and the air eye, which can effectively improve the working environment and reduce the risk of hearing damage to employees. At the same time, it eliminates the risk of coal gun being blocked and thrown out, thereby ensuring the safety of operators.

[0004] The present application discloses a connection structure between a converter coal injection gun and a tuyere, comprising a tuyere seat, a lance barrel, a silencer plate pressure cover, and a lance connector. The tuyere seat is disc-shaped, with a connecting platform configured on one side, a protruding first positioning platform configured adjacent to the connecting platform, a lance passage configured in the center, and a "7"-shaped pressing plate configured on the sidewall of the tuyere seat.

[0005] The silencer cover is disc-shaped, with a fastening platform on one side, a protruding second positioning platform adjacent to the fastening platform, a sealing platform adjacent to the second positioning platform, and a notch on the fastening platform.

[0006] Among them, the coal gun barrel is fixedly arranged at the center of the sealing platform at the center of the silencer plate pressure cover, the coal gun connector is connected to one side of the coal gun barrel, the coal gun barrel is inserted into the coal gun channel of the air eye seat and the first positioning platform is abutted against the second positioning platform, while the sealing platform is embedded in the coal gun channel for sealing; the pressing plate passes through the notch and is pressed tightly on the fastening platform.

[0007] Optionally, the first positioning platform is configured as a trapezoidal ring platform, and the inner diameter of the ring on the side close to the silencer plate pressure cover is larger than the inner diameter of the ring on the side away from the silencer plate pressure cover.

[0008] Optionally, the sealing platform is configured to be in the shape of a conical column adapted to the coal gun channel.

[0009] Optionally, the surface of the fastening platform on one side of the notch is arranged to be inclined.

[0010] Optionally, a second bolt hole and a handle are provided on the coal gun connecting head.

[0011] Optionally, the connecting platform is provided with first bolt holes, four of which are evenly distributed, and two pressing plates are provided, located between the two first bolt holes.

[0012] Optionally, the number of notches is set to two.

[0013] The technical solution provided by this application may have the following beneficial effects:

[0014] This device is connected to the silencer cover by providing a mutually adaptable and abutting air eye seat. At the same time, a "7"-shaped pressing piece is provided on one side of the air eye seat. When in use, the coal gun is rotated so that the pressing piece presses tightly against the silencer cover, thereby preventing the gap between the silencer cover and the coal gun bayonet joint to prevent blowing and leakage, effectively reducing noise, effectively improving the working environment, and reducing the risk of hearing loss for employees. At the same time, due to the addition of a pressing piece for firm compression, the risk of the coal gun being blocked and thrown out is eliminated, ensuring the safety of the operators.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0017] Figure 1 It is a structural diagram shown in an embodiment of the present application;

[0018] Figure 2 Schematic diagram of the eye seat structure shown in an embodiment of the present application;

[0019] Figure 3 Schematic diagram of the cover structure of the muffler plate shown in the embodiment of the present application;

[0020] Figure 4 It is a structural diagram shown in an embodiment of the present application;

[0021] Reference numerals:

[0022] 1. Air eye seat; 11. Connecting platform; 12. First positioning platform; 13. Coal gun channel; 14. First bolt hole; 15 Pressing plate; 2. Coal gun barrel; 3. Muffler cover; 31. Fastening platform; 32. Second positioning platform; 33. Sealing platform; 34. Notch; 35. Inclined surface; 4. Coal gun connector; 41. Second bolt hole; 42. Handle. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0024] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0026] Unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0027] In response to the above problems, an embodiment of the present application provides a connection structure between a converter coal injection gun and a tuyere. The technical solution of the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 and Figure 4The connection structure between a converter coal injection gun and an air eye is shown, comprising an air eye seat 1, a coal gun barrel 2, a silencer cover 3, and a coal gun connector 4. The air eye seat 1 of the present application is configured in a disc shape, with a connecting platform 11 constructed on one side, and a first bolt hole 14 provided on the connecting platform 11. When in use, the entire air eye seat 1 is fastened to the air eye by bolts. A protruding first positioning platform 12 is constructed adjacent to the connecting platform 11, with a coal gun channel 13 constructed in the center thereof, and a "7"-shaped pressing plate 15 is provided on the side wall of the air eye seat 1;

[0029] The silencer cover 3 is disc-shaped, with a fastening platform 31 on one side, a protruding second positioning platform 32 adjacent to the fastening platform 31, and a sealing platform 33 adjacent to the second positioning platform 32. A notch 34 is configured on the fastening platform 31 to facilitate the fastening of the pressing plate 15 after passing through the silencer cover 3. In the present application, a rubber sleeve can be integrally provided on the outer side of the second positioning platform 32 and the sealing platform 33 to enhance the sealing effect.

[0030] In this device, the coal gun barrel 2 is fixed to the center of the sealing platform 33 at the center of the silencer plate pressure cover 3 by welding, and the coal gun connector 4 is welded and fixedly connected to one side of the coal gun barrel 2. When in use, the coal gun barrel 2 is inserted into the coal gun channel 13 of the air eye seat 1 and the first positioning platform 12 is abutted against the second positioning platform 32. At the same time, the sealing platform 33 is embedded in the coal gun channel 13 for sealing; the pressing plate 15 passes through the notch 34 and is pressed tightly on the fastening platform 31.

[0031] In this way, the device is connected by providing a mutually adapted and abutted air eye seat 1 and a muffler plate pressure cover 3. At the same time, by providing a "7"-shaped pressure plate 15 on one side of the air eye seat 1, the coal gun is rotated during use so that the pressure plate 15 presses the muffler plate pressure cover 3 tightly, thereby preventing the gap between the muffler plate pressure cover and the coal gun bayonet connection from blowing and leaking, effectively reducing noise, effectively improving the working environment, and reducing the risk of hearing loss for employees. At the same time, due to the addition of the pressure plate 15 for firm compression, the risk of the coal gun being blocked and thrown out is eliminated, ensuring the safety of the operators.

[0032] In one embodiment, Figure 2 As shown, the first positioning platform 12 is configured as a trapezoidal ring platform, with the inner diameter of the ring on the side close to the muffler plate gland 3 being larger than the inner diameter of the ring on the side away from the muffler plate gland 3; the sealing platform 33 is configured as a conical column platform that adapts to the coal gun passage 13. This facilitates the sealing platform 33 to be inserted into the coal gun passage 13 inside the first positioning platform 12 for sealing.

[0033] In one embodiment, Figure 3 As shown, the table surface of the fastening platform 31 on one side of the notch 34 is provided with an inclined slope 35, and there are two notches 34. In this way, it is convenient for the pressing piece 15 to be inserted from the notch and rotated to press the fastening platform 31 tightly.

[0034] In one embodiment, Figure 4 As shown, the coal gun connector 4 is provided with a second bolt hole 41 and a handle 42. The handle 42 is provided for the convenience of employees to hold and rotate, while the second bolt hole 41 is provided for the convenience of fastening to the coal hose connector.

[0035] In one embodiment, in order to facilitate the connection and fastening of the tuyere seat 1 , the connecting platform 11 is provided with four first bolt holes 14 , and two pressing plates 15 are provided, located between the two first bolt holes 14 .

[0036] Finally, it should be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms include, comprise, or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes 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.

[0037] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0038] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. A connection structure between a converter coal injection gun and an air eye, comprising an air eye seat (1), a coal gun barrel (2), a silencer plate gland (3), and a coal gun connector (4), characterized in that: The eye of the wind seat (1) is configured in a disc shape, with a connecting platform (11) configured on one side, a protruding first positioning platform (12) configured adjacent to the connecting platform (11), a coal gun passage (13) configured in the center thereof, and a "7"-shaped pressing piece (15) configured on the side wall of the eye of the wind seat (1); The muffler cover (3) is configured in a disc shape, with a fastening platform (31) constructed on one side, a protruding second positioning platform (32) constructed adjacent to the fastening platform (31), and a sealing platform (33) constructed adjacent to the second positioning platform (32), and a notch (34) constructed on the fastening platform (31); The coal gun barrel (2) is fixedly arranged at the center of the sealing platform (33) at the center of the silencer plate pressure cover (3), the coal gun connector (4) is connected to one side of the coal gun barrel (2), the coal gun barrel (2) is inserted into the coal gun channel (13) of the air eye seat (1) and the first positioning platform (12) and the second positioning platform (32) are abutted, while the sealing platform (33) is embedded in the coal gun channel (13) for sealing; the pressing plate (15) passes through the notch (34) and is pressed tightly on the fastening platform (31).

2. The connection structure between the converter coal injection lance and the tuyere according to claim 1, characterized in that: The first positioning platform (12) is configured as a trapezoidal ring platform, and the inner diameter of the ring on the side close to the silencer plate pressure cover (3) is larger than the inner diameter of the ring on the side away from the silencer plate pressure cover (3).

3. The connection structure between the converter coal injection lance and the tuyere according to claim 2, characterized in that: The sealing platform (33) is configured in a conical column shape that matches the coal gun channel (13).

4. The connection structure between the converter coal injection lance and the tuyere according to claim 3, characterized in that: The surface of the fastening platform (31) on one side of the notch (34) is arranged in an inclined shape.

5. The connection structure between the converter coal injection lance and the tuyere according to claim 1, characterized in that: The coal gun connecting head (4) is provided with a second bolt hole (41) and a handle (42).

6. The connection structure between the converter coal injection lance and the tuyere according to claim 1, characterized in that: The connecting platform (11) is provided with first bolt holes (14), and four first bolt holes (14) are evenly distributed. The pressing sheets (15) are provided in two numbers and are located between two of the first bolt holes (14).

7. The connection structure between the converter coal injection lance and the tuyere according to claim 6, characterized in that: There are two notches (34).

Images