Steel ladle two-way bottom argon blowing device

Abstract

The utility model relates to a steel ladle two-way bottom argon blowing device, two blowing ports of a steel ladle are respectively connected with an argon blowing pipeline, two air inlet pipe inlets of each argon blowing pipeline are respectively connected with a quick joint and an automatic butt joint, all the quick joints are positioned on the same side of the steel ladle, and all the automatic butt joints are positioned on different sides of the steel ladle. During automatic argon blowing, argon can be in butt joint through the automatic butt joint, the argon can be stopped through the one-way valves, leakage of the quick joint is avoided, and when the automatic argon blowing fails, the automatic butt joint can be stopped through the one-way valves. Argon can be synchronously butted through the quick joint, and the leakage of the automatic butt joint can be avoided through the check valve, so that the quick switching of manual and automatic ladle double-path bottom argon blowing is realized, the emergency treatment time of automatic argon blowing faults is reduced, meanwhile, the normal hoisting and the horizontal ladle drying of the ladle are not influenced, the disassembly, replacement and maintenance are convenient, and the stable production is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of steel ladle argon blowing, specifically relates to a steel ladle double -way bottom argon blowing device. BACKGROUND

[0002] The molten steel is susceptible to pollution by oxygen and impurities in the smelting process, thereby affecting the molten steel quality, and the change of molten steel temperature will directly affect the quality and performance of steel, and the argon blowing treatment of the converter ladle of the steelmaking plant is a common steel smelting process, and the oxygen and inclusions in the molten steel can be removed from the molten steel through the argon blowing treatment, so that the molten steel is more pure, and the molten steel temperature can also be heated or cooled through the argon blowing to control the temperature of the molten steel, so the steel ladle argon blowing device is related. The current steel ladle argon blowing device of the steelmaking plant, for example, the argon blowing device of the 60t steel ladle in the steelmaking converter area generally includes two argon blowing pipelines and quick couplings located on the same side of the outside of the steel ladle, one end of each argon blowing pipeline is connected with the quick couplings, the other end extends to the bottom of the steel ladle and is connected with the blowpipe, and the argon blowing can be realized by manually connecting the argon gas source pipeline with the quick couplings by the operator, but considering that the distance between the steel ladle car and the steel ladle is relatively close during the manual plugging and unplugging of the pipeline, there is a risk of collision and injury caused by the sudden start of the steel ladle car, and the high temperature of the steel ladle body and the splashing of the molten steel during this period will cause the risk of burns to the personnel, so the automatic argon blowing of the steel ladle instead of the manual plugging and unplugging of the pipeline can effectively improve this problem, but there are still the following defects:

[0003] I. The automatic argon blowing device of the steel ladle in the prior art generally replaces the manual quick couplings with automatic docking couplings, and the joint of the automatic docking device is changed into an automatic docking device, and the joint of the automatic docking device and the automatic docking couplings are mutually female and male couplings.

[0004] II. For the double -way bottom argon blowing device with two blowpipes at the bottom of the steel ladle, the installation of the two automatic docking couplings on the same side of the steel ladle is not convenient due to the limitation of the small installation space of the steel ladle argon blowing pipeline, which may affect the normal hoisting and horizontal baking of the steel ladle, and the long -term influence of the high temperature of the online steel ladle outer surface on the argon blowing pipeline makes it inconvenient to disassemble and maintain or replace the hard -connected pipeline. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving one of the above technical problems at least to some extent, the utility model provides a kind of ladle double-path bottom argon blowing device, manual and automatic ladle double-path bottom argon blowing quick switching can be realized, the emergency handling time of reducing automatic argon blowing failure, while not affect ladle normal hoisting and horizontal baking ladle, it is convenient to dismantle and replace maintenance.

[0006] The utility model solves the technical problems by adopting the technical scheme of:

[0007] A kind of ladle double-path bottom argon blowing device, including ladle, two blowholes of ladle are connected with argon blowing pipeline respectively, the inlet of each argon blowing pipeline is connected with two gas inlet pipes respectively, the inlet of two gas inlet pipes is connected with quick coupling and automatic butt joint respectively, all quick couplings are located in the same side of ladle, all automatic butt joints are located in the different side of ladle, one-way valve for the flow of argon to blowhole direction is equipped on the gas inlet pipe, the gas inlet pipe of at least one end of the one-way valve located in the different side of blowhole relative to ladle includes hose.

[0008] In preferred embodiments, the gas inlet pipe between automatic butt joint and one-way valve is equipped with hose.

[0009] In preferred embodiments, the gas inlet pipe includes U-shaped pipe, and the hose and U-shaped pipe are located at both ends of one-way valve respectively.

[0010] In preferred embodiments, the ladle is provided with a bracket, and the bracket is provided with a bayonet that cooperates with the U-shaped pipe.

[0011] In preferred embodiments, the ladle is provided with a ladle hoop, and the inlet end of the gas inlet pipe passes through the ladle hoop and is arranged in the ladle hoop.

[0012] In preferred embodiments, the quick coupling and one-way valve on the same gas inlet pipe are arranged adjacently, and the ladle hoop is provided with a clearance opening corresponding to the adjacent quick coupling and one-way valve.

[0013] In preferred embodiments, the ladle hoop is provided with a mounting seat for mounting the automatic butt joint.

[0014] In preferred embodiments, the ladle hoop is provided with a lifting arm bracket, and the gas inlet pipe passes through the lifting arm bracket.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects:

[0016] (1) The utility model discloses a two-way bottom argon blowing device for ladle, which comprises a ladle, a two-way bottom argon blowing device for ladle, a first one-way valve, a first gas inlet pipe, a second one-way valve, a second gas inlet pipe, a quick connector and an automatic butt joint connector.

[0017] (2) All the quick connectors of the utility model are located on the same side of the ladle, and all the automatic butt joint connectors are located on the different sides of the ladle, which is convenient for manually connecting the argon gas source pipeline into the quick connector synchronously, realizes the quick switching from the manual ladle two-way bottom argon blowing to the automatic ladle two-way bottom argon blowing, and is convenient for the installation of the automatic butt joint connector and the gas inlet pipe from the two sides of the ladle during the automatic argon blowing, solves the problem of the unreasonable arrangement of the manual or automatic argon blowing affecting the normal lifting and horizontal ladle baking.

[0018] (3) The relative blowing port of the utility model is located on the gas inlet pipe of at least one end of the one-way valve on the different side of the ladle, which comprises a hose, and the hose is convenient for the dismounting, replacement and maintenance of the one-way valve, can play a certain thermal expansion and cold shrink compensation role when the pipe length is long, and further improves the stability of the ladle two-way bottom argon blowing device. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0020] Figure 1 is the right view of the embodiment 1 of the utility model;

[0021] Figure 2 is the front view of the embodiment 1 of the utility model;

[0022] Figure 3 is the left view of the embodiment 1 of the utility model;

[0023] Figure 4 is the right view of the embodiment 2 of the utility model;

[0024] Figure 5 is the front view of the embodiment 2 of the utility model;

[0025] Figure 6 is the left view of the embodiment 2 of the utility model.

[0026] Marked in the figure: ladle 1, blowpipe 11, ladle hoop 12, let go 13, mounting seat 14, boom bracket 15, first through hole 16, second through hole 17, support 18, bayonet 19;

[0027] Argon blowing pipeline 2, first argon blowing pipeline 21, second argon blowing pipeline 22; air inlet pipe 3, first air inlet pipe 31, second air inlet pipe 32, third air inlet pipe 33, fourth air inlet pipe 34, hose 35, U-shaped pipe 36;

[0028] Quick connector 4, first quick connector 41, second quick connector 42; first automatic butt joint 51, second automatic butt joint 52; one-way valve 6, first one-way valve 61, second one-way valve 62, third one-way valve 63, fourth one-way valve 64, Figure 5 Enlarged display at A. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the present application, it is understood that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] Example 1:

[0033] The utility model discloses a kind of steel ladle automatic argon blowing devices, to solve the technical problems of the prior art, such as relatively low butt joint success rate, long emergency handling time required for troubleshooting, and when applied to double bottom argon blowing, it can affect normal lifting and horizontal baking ladle, and inconvenient to disassemble and replace maintenance from the production and safety angle of view, how to ensure that steel ladle automatic argon blowing is normally used, and how to retain original manual argon blowing, as shown in Figures 1-3 As shown in

[0034] For example: there are two argon blowing pipelines 2, which are first argon blowing pipeline 21 and second argon blowing pipeline 22; there are four gas inlet pipes 3, which are first gas inlet pipe 31, second gas inlet pipe 32, third gas inlet pipe 33 and fourth gas inlet pipe 34; there are two quick couplings 4, which are first quick coupling 41 and second quick coupling 42, and the quick couplings 4 can adopt plug-in quick couplings 4; there are two automatic butt joint connectors, which are first automatic butt joint connector 51 and second automatic butt joint connector 52, and the automatic butt joint connectors can adopt male connectors or female connectors; there are four one-way valves 6, which are first one-way valve 61, second one-way valve 62, third one-way valve 63 and fourth one-way valve 64, and the two ends of the one-way valves 6 are connected to the corresponding gas inlet pipes 3.

[0035] As shown in Figure 1 The outlet of the first argon blowing pipeline 21 and the second argon blowing pipeline 22 is connected to the two blowholes 11 at the bottom of the steel ladle 1, the inlet of the first argon blowing pipeline 21 is connected to the first gas inlet pipe 31 and the second gas inlet pipe 32 at the same time, the inlet of the first gas inlet pipe 31 is connected to the first quick coupling 41, the first one-way valve 61 is arranged on the first gas inlet pipe 31, the inlet of the second gas inlet pipe 32 is connected to the first automatic butt joint connector 51, and the second one-way valve 62 is arranged on the first gas inlet pipe 31; the inlet of the second argon blowing pipeline 22 is connected to the third gas inlet pipe 33 and the fourth gas inlet pipe 34 at the same time, the inlet of the third gas inlet pipe 33 is connected to the second quick coupling 42, the third one-way valve 63 is arranged on the third gas inlet pipe 33, the first quick coupling 41, the second quick coupling 42, the first automatic butt joint connector 51, the first one-way valve 61, the second one-way valve 62, the third one-way valve 63 and the blowhole 11 are located on one side of the steel ladle 1, that is, all the quick couplings 4 are located on the same side of the steel ladle 1.

[0036] As Figure 2 and Figure 3 shown, the second automatic butt joint 52 and the fourth one-way valve 64 are located on the other side of the ladle 1, i.e. all the automatic butt joints are located on the opposite sides of the ladle 1, and the one-way valve 6 is located on the opposite side of the blow pipe 11, the fourth gas inlet pipe 34 is connected to the second automatic butt joint 52 at one end and connected to the fourth one-way valve 64 through the hose 35, and the other end of the fourth gas inlet pipe 34 bypasses the ladle 1 and is connected to the second argon blowing pipeline 22.

[0037] When the automatic argon blowing is used, the automatic butt joint devices of the gas source pipeline are connected to the first automatic butt joint 51 and the second automatic butt joint 52, one way of argon gas can enter one of the blow pipes 11 of the ladle 1 through the first automatic butt joint 51, the second one-way valve 62, the second gas inlet pipe 32 and the first argon blowing pipeline 21, and the other way of argon gas can enter the other blow pipe 11 of the ladle 1 through the second automatic butt joint 52, the fourth gas inlet pipe 34, the hose 35, the fourth one-way valve 64 and the second argon blowing pipeline 22, and the argon gas is limited by the first one-way valve 61 and the third one-way valve 63 to flow backward and then leaked from the first quick joint 41 and the second quick joint 42, respectively. Thus, by the check action of the one-way valve 6, the quick joint 4 for manual argon blowing can be ensured to have no leakage when the automatic argon blowing is used, and the automatic double-way bottom argon blowing of the ladle is realized. Since the first automatic butt joint 51 and the second automatic butt joint 52 are located on the two sides of the ladle 1, respectively, the installation of the automatic butt joint, the automatic butt joint from the two sides of the ladle 1 and the influence on the normal lifting and laying of the ladle 1 can be avoided.

[0038] When the automatic argon blowing fails, since the first quick connector 41 and the second quick connector 42 are located on the same side of the ladle 1, the argon gas source pipeline can be manually connected to the first quick connector 41 and the second quick connector 42 synchronously, respectively, so that one way of argon gas can enter one blowing port 11 of the ladle 1 along the first quick connector 41, the first one-way valve 61, the first gas inlet pipe 31 and the first argon blowing pipeline 21, and leak from the first automatic butt joint 51 after being restricted by the second one-way valve 62; another way of argon gas can enter another blowing port 11 of the ladle 1 along the second quick connector 42, the third one-way valve 63, the third gas inlet pipe 33 and the second argon blowing pipeline 22, and leak from the second automatic butt joint 52 after being restricted by the fourth one-way valve 64, so that, by the check action of the one-way valve 6, when the manual argon blowing is performed, the automatic butt joint for automatic argon blowing can be ensured to have no leakage, the automatic ladle double-way bottom argon blowing can be quickly switched to the manual ladle double-way bottom argon blowing, the emergency handling time of the automatic argon blowing failure is reduced, and the stable production is promoted; similarly, when the automatic argon blowing failure is eliminated, the automatic butt joint is used again to connect the argon gas, the manual ladle double-way bottom argon blowing can be quickly switched to the automatic ladle double-way bottom argon blowing, the design structure is simple and practical, the manual and automatic argon blowing modes coexist and are relatively independent, and the problems of how to normally use the automatic argon blowing of the on-site ladle and how to retain the original manual argon blowing are solved.

[0039] Since the one-way valve 6 body and the internal spring need to withstand the high temperature of the online ladle 1 outer surface for a long time, the one-way valve 6 needs to be replaced regularly, the pipe length of the second gas inlet pipe 32 is relatively short, the second one-way valve 62 is relatively close to the first automatic butt joint 51, and the replacement is convenient, while the pipe length of the fourth gas inlet pipe 34 is relatively long, the second one-way valve 62 is relatively far from the second automatic butt joint 52, and if the hard seamless pipe is used for the whole length of the fourth gas inlet pipe 34, the replacement is inconvenient, so a section of hose 35 is added, that is, the gas inlet pipe 3 of at least one end of the one-way valve 6 whose relative blowing port 11 is located on the opposite side of the ladle 1 includes the hose 35, on the one hand, the hose 35 can form a soft connection, and after the hose 35 is disconnected from the fourth one-way valve 64, the fourth one-way valve 64 can be conveniently replaced, so that the replacement and maintenance problem of the ladle double-way bottom argon blowing device is solved, and on the other hand, the flexibility of the hose 35 can adapt to the thermal expansion and contraction of the fourth gas inlet pipe 34, has a certain buffering effect, and can further improve the stability of the ladle double-way bottom argon blowing device.

[0040] Further, the ladle 1 is provided with a ladle hoop 12, and the inlet end of the gas inlet pipe 3 penetrates through the ladle hoop 12 and is arranged in the ladle hoop 12; for example, Figure 1 and Figure 3As shown, the wrapping 12 is provided with a plurality of first through holes 16, each air inlet pipe 3 can pass through the corresponding first through hole 16 into the hollow wrapping 12, so that the original wrapping 12 of the ladle 1 can be used to install and fix each air inlet pipe 3, the wrapping 12 can protect the air inlet pipe 3 and hide the air inlet pipe 3, the installation space of the argon blowing pipeline 2 of the 60t ladle 1 is small, this method can reduce the number of newly added branch pipes, and can further avoid affecting the normal lifting and horizontal baking of the ladle 1.

[0041] Further, the quick connector 4 and the one-way valve 6 on the same air inlet pipe 3 are arranged adjacent to each other, the wrapping 12 is provided with a gap 13 corresponding to the adjacent quick connector 4 and one-way valve 6; for example, as shown in Figure 1 As shown, when manually blowing argon, the argon gas source pipeline can be inserted from the gap 13, or the first one-way valve 61 and the third one-way valve 63 can be replaced from the gap 13, which is more convenient to operate.

[0042] Further, the wrapping 12 is provided with a mounting seat 14 for mounting an automatic butt joint; for example, as shown in Figure 1 and Figure 3 As shown, the wrapping 12 is provided with two mounting seats 14 on both sides, respectively, so that the first automatic butt joint 51 and the second automatic butt joint 52 can be mounted on the two mounting seats 14, respectively, the interfaces of the first automatic butt joint 51 and the second automatic butt joint 52 face downward, and the fourth air inlet pipe 34 passing out of the wrapping 12 can be arranged close to the protruding wrapping 12 below, so as to play a certain protective role in preventing slag accumulation for the fourth air inlet pipe 34.

[0043] Further, the wrapping 12 is provided with a lifting arm bracket 15, and the air inlet pipe 3 passes through the lifting arm bracket 15; for example, as shown in Figure 1 and Figure 3 As shown, the lifting arm bracket 15 on both sides of the wrapping 12 is provided with a second through hole 17, and the upper part of the air inlet pipe 3 can be provided in an L-shaped structure passing through the first through hole 16 and the second through hole 17, so as to further improve the stability of the installation of the air inlet pipe 3.

[0044] Embodiment 2:

[0045] As shown in Figures 4-6 Another preferred embodiment of the steel ladle double-path bottom argon blowing device of the utility model, the difference between the steel ladle double-path bottom argon blowing device and embodiment 1 lies in that the air inlet pipe 3 between the automatic butt joint and the one-way valve 6 is provided with a hose 35, for example, in the case that the specification of the ladle 1 changes or the length of the second air inlet pipe 32 is relatively long, as shown in Figure 4 As shown, the second air inlet pipe 32 can also be provided with a hose 35, and the hose 35 can pass through the first through hole 16, so as to facilitate the replacement of the second one-way valve 62 and play a certain compensation role for the thermal expansion and cold contraction of the second air inlet pipe 32.

[0046] Further, the air inlet pipe 3 comprises a U-shaped pipe 36, and the hose 35 and the U-shaped pipe 36 are respectively located at two ends of the one-way valve 6; for example, as shown in Figure 6 the fourth one-way valve 64 has one end of the hose 35 and the other end of the U-shaped pipe 36, and the U-shaped pipe 36 can be composed of an L-shaped pipe, an elbow and a straight pipe, so that, on the one hand, the fourth one-way valve 64 can be vertically arranged to increase the spacing between the fourth one-way valve 64 and the hoop 12, and the fourth one-way valve 64 is more convenient to disassemble, replace and maintain, and on the other hand, the length of the hose 35 can be increased to adapt to the installation of a longer hose 35, and the compensation effect is further improved through the turning of the hose 35.

[0047] Further, the ladle 1 is provided with a support 18, and the support 18 is provided with a bayonet 19 matched with the U-shaped pipe 36; for example, as shown in Figure 5 the support 18 is welded on the inner side of the ladle 1, and the bayonet 19 faces upward, so that the U-shaped pipe 36 can be further erected on the support 18 through the cooperation of the U-shaped pipe 36 and the bayonet 19, and the stability of the installation and support of the U-shaped pipe 36 is improved.

[0048] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the utility model, and they are not used to limit the protection scope of the utility model, and equivalent embodiments or changes made without departing from the spirit of the utility model art should be included in the protection scope of the utility model.

Claims

1. A double-path bottom-blowing argon device for a steel ladle, comprising a steel ladle (1), wherein two blowholes (11) of the steel ladle (1) are respectively connected to argon blowing pipelines (2), characterized in that, Each argon blowing pipeline (2) has two inlet pipes (3) connected to its inlet. The inlets of the two inlet pipes (3) are connected to quick connectors (4) and automatic docking connectors, respectively. All quick connectors (4) are located on the same side of the ladle (1), and all automatic docking connectors are located on opposite sides of the ladle (1). Each inlet pipe (3) is equipped with a one-way valve (6) for argon gas to flow towards the blowing port (11). The inlet pipe (3) at least one end of the one-way valve (6) located on the opposite side of the blowing port (11) of the ladle (1) includes a hose (35).

2. The ladle dual-path bottom-blowing argon device according to claim 1, characterized in that, The air inlet pipe (3) located between the automatic docking connector and the one-way valve (6) is equipped with a flexible hose (35).

3. The ladle dual-path bottom-blowing argon device according to claim 1, characterized in that, The air intake pipe (3) includes a U-shaped pipe (36), and the hose (35) and the U-shaped pipe (36) are located at both ends of the one-way valve (6).

4. A double-path bottom-blowing argon device for a steel ladle according to claim 3, characterized in that, The steel ladle (1) is provided with a bracket (18), and the bracket (18) is provided with a bayonet (19) that cooperates with the U-shaped tube (36).

5. A double-path bottom-blowing argon device for a steel ladle according to any one of claims 1 to 4, characterized in that, The ladle (1) is provided with a clamp (12), and the inlet end of the air inlet pipe (3) passes through the clamp (12) and is located inside the clamp (12).

6. A double-path bottom-blowing argon device for a steel ladle according to claim 5, characterized in that, The quick connector (4) and the one-way valve (6) on the same intake pipe (3) are arranged adjacent to each other, and the clamp (12) is provided with a clearance port (13) corresponding to the adjacent quick connector (4) and the one-way valve (6).

7. A double-path bottom-blowing argon device for a steel ladle according to claim 5, characterized in that, The clamp (12) is provided with a mounting base (14) for installing an automatic docking connector.

8. A double-path bottom-blowing argon device for a steel ladle according to claim 5, characterized in that, The clamp (12) is provided with a boom (15), and the air intake pipe (3) passes through the boom (15).

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