Silencer special for oxygen diffusing pipe of steelmaking converter

Abstract

The utility model is suitable for the technical field of steelmaking equipment, and provides a special silencer for an oxygen diffusing pipe of a steelmaking converter. Comprising an oxygen main pipe, and one end of the oxygen main pipe is connected with a first oxygen branch pipe and a second oxygen branch pipe; an oxygen secondary valve is arranged at the end, away from the oxygen main pipe, of the first oxygen branch pipe, an oxygen secondary valve is arranged at the end, away from the oxygen main pipe, of the second oxygen branch pipe, the middle of the second oxygen branch pipe is communicated with a discharging bent pipe, and a silencer is arranged at the end, away from the second oxygen branch pipe, of the discharging bent pipe. The silencer is higher than the first oxygen branch pipe and the second oxygen branch pipe. A silencer rain cover is arranged on the silencer, and the silencer rain cover is arranged on the silencer in a covering mode. Due to the fact that the silencer rain cover is arranged on the silencer, noise diffused by high-pressure oxygen can be eliminated, rainwater can be prevented from entering an oxygen pipeline, cost of later maintenance is reduced, and the purposes of safe operation of equipment and environment protection are achieved.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking equipment technology, specifically a silencer for the oxygen venting pipe of a steelmaking converter. Background Technology

[0002] The oxygen silencer in a steelmaking converter is a crucial piece of equipment in the steelmaking process, primarily responsible for eliminating the noise emitted by high-pressure oxygen. It is particularly important for safe production and environmental protection. Currently, the following problems exist:

[0003] After the steelmaking converter completes the blowing process, slag splashing is required. Nitrogen is used for slag splashing. Since nitrogen and oxygen cannot be mixed, the residual oxygen in the pipeline after the main oxygen valve must be released before the slag splashing operation can be carried out. The oxygen release is noisy and causes serious environmental pollution. Rainwater entering the silencer and oxygen pipeline poses a safety hazard. In order to solve this technical problem, a special silencer for the oxygen release pipe of the steelmaking converter is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a special silencer for the oxygen vent pipe of a steelmaking converter, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A silencer for oxygen venting pipes in steelmaking converters includes: an oxygen main pipe, one end of which is connected to an oxygen branch pipe and an oxygen branch pipe; a first oxygen secondary valve is installed on the oxygen branch pipe at the end away from the oxygen main pipe, and a second oxygen secondary valve is installed on the oxygen branch pipe at the end away from the oxygen main pipe; a discharge bend is connected to the middle of the oxygen branch pipe, and a silencer is installed on the discharge bend at the end away from the oxygen branch pipe, the silencer being positioned higher than the oxygen branch pipes; and a silencer rain cover is provided on the silencer, the silencer rain cover covering the silencer.

[0007] As a further embodiment of this utility model: the discharge bend includes a vertical section and an inclined section, wherein the vertical section is connected to the oxygen branch pipe and is arranged perpendicular to the oxygen branch pipe, and the silencer is arranged at the end of the inclined section.

[0008] As a further improvement of this utility model, the inclined section and the vertical section are connected by a venting valve elbow.

[0009] As a further improvement of this utility model, the bending angle of the vent valve elbow is set to be less than 90°.

[0010] As a further improvement of this utility model, an oxygen release valve is provided on the vertical section.

[0011] As a further improvement of this utility model, the muffler rain cover is installed on the muffler with an adjustable angle.

[0012] As a further embodiment of this utility model: the muffler rain cover includes a rain cover and a support rod, the rain cover is fixedly installed on the support rod, and the support rod is installed on the muffler through an angle adjustment mechanism.

[0013] As a further embodiment of this utility model: the angle adjustment mechanism includes a mounting base, a turntable, a drive plate, and a rotating disk; the mounting base is fixedly installed on the side wall of the muffler, the end of the support rod away from the rain cover is fixedly installed on the turntable, the turntable is rotatably sleeved on the rotating shaft on the mounting base, and several mating grooves are arranged in an array along the periphery of the rotating shaft on the side wall of the mounting base near the turntable; two locking rods are symmetrically installed on the drive plate near the turntable, two through holes are symmetrically arranged on the turntable, the locking rods are inserted into the through holes, and an elastic element is sleeved on the outside of the locking rod. The two ends of the elastic element are respectively fixedly installed on the locking rod and the turntable, and a screw is fixedly installed at the center of the rotating disk, the screw engaging with the threaded hole at the middle position of the rotating shaft.

[0014] As a further improvement of this utility model, the elastic element is a helical spring.

[0015] As a further improvement of this utility model, an oxygen main valve is provided on the oxygen main pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are: by setting a silencer rain cover on the silencer, the noise of high-pressure oxygen release and the function of rainwater entering the oxygen pipeline can be eliminated, reducing the cost of later maintenance, so as to achieve the purpose of safe equipment operation and environmental protection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a special silencer for the oxygen venting pipe of a steelmaking converter according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the silencer rain cover of a special silencer for oxygen venting pipes in steelmaking converters according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the muffler rain cover installation structure of a special muffler for oxygen venting pipes in steelmaking converters, according to an embodiment of the present invention.

[0020] In the diagram: 1-Oxygen main pipe, 2-Oxygen main valve, 3-Oxygen branch pipe, 4-First oxygen secondary valve, 5-Oxygen branch pipe, 6-Second oxygen secondary valve, 7-Oxygen vent valve, 8-Vent valve elbow, 9-Silencer rain cover, 10-Silencer, 901-Rain cover, 902-Support rod, 903-Mounting base, 904-Matching groove, 905-Turntable, 906-Through hole, 907-Drive plate, 908-Locking rod, 909-Turntable, 910-Screw, 911-Shaft, 912-Elastic element. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Please see Figures 1-3 The present invention provides a structural diagram of a special silencer for oxygen venting pipes of steelmaking converters according to Embodiment 1. The special silencer for oxygen venting pipes of steelmaking converters includes: an oxygen main pipe 1, one end of which is connected to an oxygen branch pipe 3 and an oxygen branch pipe 5; a first oxygen secondary valve 4 is provided on the oxygen branch pipe 3 at the end away from the oxygen main pipe 1, and a second oxygen secondary valve 6 is provided on the oxygen branch pipe 5 at the end away from the oxygen main pipe 1; a discharge bend is connected in the middle of the oxygen branch pipe 5, and a silencer 10 is provided on the end of the discharge bend away from the oxygen branch pipe 5; the silencer 10 is positioned higher than the oxygen branch pipe 3 and the oxygen branch pipe 5; a silencer rain cover 9 is provided on the silencer 10, and the silencer rain cover 9 covers the silencer 10.

[0024] In some embodiments, the second oxygen secondary valve 6 is installed at the end of the second oxygen branch pipe 5 via a flange. The first oxygen secondary valve 4 is installed at the end of the first oxygen branch pipe 3 via a flange.

[0025] This utility model eliminates the noise from high-pressure oxygen release and prevents rainwater from entering the oxygen pipeline by installing a silencer rain cover 9 on the silencer 10, thereby reducing the cost of later maintenance and achieving the purpose of safe equipment operation and environmental protection.

[0026] like Figure 1 As shown, in some embodiments, the discharge bend includes a vertical section and an inclined section, wherein the vertical section is connected to the oxygen branch pipe 5 and is arranged perpendicular to the oxygen branch pipe 5, and the silencer 10 is arranged at the end of the inclined section.

[0027] like Figure 1 As shown, in some embodiments, the inclined section and the vertical section are connected by a venting valve elbow 8, and the venting valve elbow 8 is set with a bending angle of less than 90°.

[0028] In some embodiments, an oxygen venting valve 7 is provided on the vertical section. The oxygen venting valve 7 is installed on the vertical section via a flange.

[0029] like Figure 2 and 3 As shown in some embodiments of this utility model, the muffler rain cover 9 is angle-adjustable and mounted on the muffler 10.

[0030] Specifically, the muffler rain cover 9 includes a rain cover 901 and a support rod 902. The rain cover 901 is fixedly installed on the support rod 902, and the support rod 902 is installed on the muffler 10 through an angle adjustment mechanism.

[0031] like Figure 2 and 3 As shown in some embodiments of this utility model, the angle adjustment mechanism includes a mounting base 903, a turntable 905, a drive plate 907, and a rotating disk 909; the mounting base 903 is fixedly mounted on the side wall of the muffler 10, and the end of the support rod 902 away from the rain cover 901 is fixedly mounted on the turntable 905. The turntable 905 is rotatably mounted on the rotating shaft 911 on the mounting base 903. Several mating parts are arranged in an array along the periphery of the rotating shaft 911 on the side wall of the mounting base 903 near the turntable 905. Groove 904; Two locking rods 908 are symmetrically installed on the drive plate 907 near the turntable 905. Two through holes 906 are symmetrically arranged on the turntable 905. The locking rods 908 are inserted into the through holes 906. An elastic element 912 is sleeved on the outside of the locking rods 908. The two ends of the elastic element 912 are fixedly installed on the locking rods 908 and the turntable 905 respectively. A screw 910 is fixedly installed at the center of the rotating disk 909. The screw 910 is engaged with the threaded hole at the middle position of the rotating shaft 911. When adjusting the installation angle of the support rod 902 and the rain cover 901, by rotating the rotating disk 909, the drive plate 907 moves away from the turntable 905 under the action of the elastic element 912, so that the locking rod 908 leaves one of the mating grooves 904. Then, rotating the drive plate 907 drives the turntable 905 to rotate. When it rotates to the appropriate position, rotating the rotating disk 909 causes the drive plate 907 to move towards the mounting base 903, so that the locking rod 908 is inserted into the mating groove 904.

[0032] In some embodiments of this utility model, the elastic element 912 is a helical spring.

[0033] A silencer is a noise reduction device used in airflow ducts that simultaneously transmit noise. It utilizes pipes with sound-absorbing linings, bends, or pipes with sudden changes in cross-sectional area or other discontinuous acoustic impedance to attenuate or reflect noise back into the duct. The former is called a resistive silencer, the latter a reactive silencer, and there are also composite impedance silencers.

[0034] A silencer is a noise reduction device used in airflow ducts that simultaneously transmit noise. It utilizes pipes with sound-absorbing linings, bends, or pipes with sudden changes in cross-sectional area or other discontinuous acoustic impedance to attenuate or reflect noise back into the duct. The former is called a resistive silencer, the latter a reactive silencer, and there are also composite impedance silencers.

[0035] In some embodiments, an oxygen main valve 2 is provided on the oxygen main pipe 1. The oxygen main valve 2 is installed on the oxygen main pipe 1 via a flange.

[0036] In some embodiments, the oxygen branch pipe 3 and the oxygen branch pipe 5 can be arranged in parallel to each other.

[0037] The inner diameters of the main oxygen pipe 1, the first oxygen pipe 3, and the second oxygen pipe 5 can be specifically set as needed.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A silencer specifically designed for oxygen vent pipes in steelmaking converters, characterized in that, include: An oxygen main pipe (1) is connected to an oxygen branch pipe (3) and an oxygen branch pipe (5) at one end; a first oxygen secondary valve (4) is provided on the oxygen branch pipe (3) at the end away from the oxygen main pipe (1); a second oxygen secondary valve (6) is provided on the oxygen branch pipe (5) at the end away from the oxygen main pipe (1); a discharge bend is connected in the middle of the oxygen branch pipe (5); a silencer (10) is provided on the end of the discharge bend away from the oxygen branch pipe (5); the silencer (10) is set higher than the oxygen branch pipe (3) and the oxygen branch pipe (5); a silencer rain cover (9) is provided on the silencer (10); the silencer rain cover (9) covers the silencer (10).

2. The silencer for the oxygen vent pipe of a steelmaking converter according to claim 1, characterized in that, The discharge bend includes a vertical section and an inclined section, wherein the vertical section is connected to the oxygen branch pipe (5) and is arranged perpendicular to the oxygen branch pipe (5), and the silencer (10) is arranged at the end of the inclined section.

3. A silencer for a steelmaking converter oxygen vent pipe according to claim 2, characterized in that, The inclined section and the vertical section are connected by a venting valve elbow (8).

4. A silencer for a steelmaking converter oxygen vent pipe according to claim 3, characterized in that, The bend angle of the vent valve elbow (8) is set to be less than 90°.

5. A silencer for a steelmaking converter oxygen vent pipe according to claim 4, characterized in that, An oxygen release valve (7) is installed on the vertical section.

6. A silencer for a steelmaking converter oxygen vent pipe according to claim 1, characterized in that, The muffler rain cover (9) is installed on the muffler (10) with an adjustable angle.

7. A silencer for a steelmaking converter oxygen vent pipe according to claim 6, characterized in that, The muffler rain cover (9) includes a rain cover (901) and a support rod (902). The rain cover (901) is fixedly installed on the support rod (902), and the support rod (902) is installed on the muffler (10) through an angle adjustment mechanism.

8. A silencer for a steelmaking converter oxygen vent pipe according to claim 7, characterized in that, The angle adjustment mechanism includes a mounting base (903), a turntable (905), a drive plate (907), and a rotating disk (909); the mounting base (903) is fixedly mounted on the side wall of the muffler (10), and the end of the support rod (902) away from the rain cover (901) is fixedly mounted on the turntable (905). The turntable (905) is rotatably mounted on the rotating shaft (911) on the mounting base (903). Several mating grooves (904) are arranged in an array along the periphery of the rotating shaft (911) on the side wall of the mounting base (903) near the turntable (905); the drive plate (907) and the rotating disk (909) are fixedly mounted on the side wall of the muffler (10). Two locking rods (908) are symmetrically installed on the side of the moving plate (907) near the turntable (905). Two through holes (906) are symmetrically arranged on the turntable (905). The locking rods (908) are inserted into the through holes (906). An elastic element (912) is sleeved on the outside of the locking rods (908). The two ends of the elastic element (912) are fixedly installed on the locking rods (908) and the turntable (905) respectively. A screw (910) is fixedly installed at the center of the rotating disk (909). The screw (910) is engaged with the threaded hole at the middle position of the rotating shaft (911).

9. A silencer for a steelmaking converter oxygen vent pipe according to claim 8, characterized in that, The elastic element (912) is a helical spring.

10. A silencer for a steelmaking converter oxygen vent pipe according to any one of claims 1-9, characterized in that, An oxygen main valve (2) is installed on the oxygen main pipe (1).

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