Bottom argon blowing control system

Abstract

The utility model is suitable for the technical field of steelmaking production equipment, and provides a bottom argon blowing control system. Comprising an argon connecting pipeline and a bottom argon blowing system flow control cabinet, the output end of the argon connecting pipeline is connected to the input end of the bottom argon blowing system flow control cabinet, the output end of the bottom argon blowing system flow control cabinet is provided with a blow-off valve, and the blow-off valve is arranged on a buggy ladle. According to the utility model, the relief valve in the control cabinet is changed to the buggy ladle, so that the argon relief distance is greatly shortened, the automatic butt joint is quickly retracted, the probability that the automatic butt joint is crashed is reduced, better conditions are created for normal production of a refining system, and the damage rate of the automatic butt joint is reduced from 90% to 10%.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steel production equipment technical field, specifically a bottom argon blowing control system. BACKGROUND

[0002] In the steel industry, its steelmaking process is a section with extremely strict safety requirements, especially in the converter steelmaking and refining process, argon blowing needs to be carried out to the ladle, and the original operation process has been continuously connected by manual field using quick-change joints. In this way, not only the labor intensity of workers is increased, but also the splashing of steel slag directly threatens personal safety.

[0003] The bottom argon blowing automatic connection device for the refining area of the steel plant completely overcomes the above problems and realizes the unmanned automatic connection of the bottom argon blowing, but since the diffusion valve after stopping the argon blowing is designed in the bottom argon blowing control cabinet, the diffusion effect is poor, and the automatic docking joint is slow to retract and is easy to be damaged, in order to solve the technical problem, the present application provides a bottom argon blowing control system. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of bottom argon blowing control systems, the position of original bottom argon blowing diffusion valve is changed, diffusion valve is changed from bottom argon blowing flow control cabinet to ladle car, shorten the argon diffusion time after stopping blowing argon, make automatic docking joint can retract faster, reduce the probability of being damaged by molten steel tank.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of bottom argon blowing control system, comprising: argon connection pipeline and bottom argon blowing system flow control cabinet, the output end of argon connection pipeline is connected at the input end of bottom argon blowing system flow control cabinet, the output end of bottom argon blowing system flow control cabinet is provided with diffusion valve, and the diffusion valve is arranged on ladle car.

[0007] As a further scheme of the utility model: the argon connection pipeline includes first stop valve, second stop valve, pressure limiting valve, fifth stop valve, electric feedback valve, third stop valve, solenoid valve, sixth stop valve and seventh stop valve, one end of the first stop valve is connected with argon source interface, the other end of the first stop valve is connected with one end of the second stop valve, the other end of the second stop valve is connected with the input end of the pressure limiting valve, the output end of the pressure limiting valve is connected with one end of the fifth stop valve, the other end of the fifth stop valve is connected on the electric feedback valve;One end of the third stop valve is connected with one end of the second stop valve, the other end of the third stop valve is connected on one end of the solenoid valve, the other end of the solenoid valve is connected on one end of the sixth stop valve, the other end of the sixth stop valve is connected on one end of the seventh stop valve, one end of the sixth stop valve is connected on the other end of the electric feedback valve.

[0008] As a further scheme of the utility model: the argon connecting pipeline further includes a fourth stop valve, and the fourth stop valve is connected in parallel with the electromagnetic valve.

[0009] As a further scheme of the utility model: the other end of the first stop valve is connected with one end of a second stop valve through a filter.

[0010] As a further scheme of the utility model: the second stop valve is further provided with a pressure sensor at one end.

[0011] As a further scheme of the utility model: the other end of the electric feedback valve is provided with a second pressure sensor.

[0012] As a further scheme of the utility model: the other end of the electric feedback valve is connected with an input end of a flow control cabinet of the bottom argon blowing system through argon connection with a ladle car tow cable.

[0013] As a further scheme of the utility model: the first stop valve, the third stop valve, the second stop valve and the sixth stop valve are all ball valves.

[0014] As a further scheme of the utility model: the control valve is an electromagnetic valve.

[0015] As a further scheme of the utility model: the electric feedback valve is a normally open valve.

[0016] Compared with the prior art, the utility model has the beneficial effects that: the diffusion valve in the control cabinet is changed to the ladle car, the distance of argon diffusion is greatly shortened, the automatic butt joint is rapidly retracted, the probability of automatic butt joint damage is reduced, better conditions are created for normal production of the refining system, and the automatic butt joint damage rate is reduced from 90% to 10%. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structure schematic view of a bottom argon blowing control system of the utility model embodiment.

[0018] Fig. 2 It is a structure schematic view of an argon connecting pipeline in a bottom argon blowing control system of the utility model embodiment.

[0019] In the figure: 1-argon connection pipeline, 2-bottom argon blowing system flow control cabinet, 3-ladle car, 4-diffusion valve, 101-first stop valve, 102-filter, 103-first pressure sensor, 104-second stop valve, 105-third stop valve, 106-control valve, 107-fourth stop valve, 108-pressure limiting valve, 109-fifth stop valve, 110-electric feedback valve, 111-sixth stop valve, 112-seventh stop valve, 113-second pressure sensor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Embodiment 1

[0022] Please refer to Figs. 1-2 The bottom argon blowing control system provided in the embodiment 1 of the utility model has the advantages that the diffusion valve in the control cabinet is changed to the ladle car, the distance of argon diffusion is greatly shortened, the automatic docking connector is quickly retracted, the probability of the automatic docking connector being damaged is reduced, better conditions are created for the normal production of the refining system, and the damage rate of the automatic docking connector is reduced from 90% to 10%.

[0023] The control principle of the bottom argon blowing control system is that the flow is set by HMI input, the corresponding cut-off valve is opened, the flow is controlled by the bottom argon blowing system flow control cabinet 2, the argon gas reaches the automatic docking position of the ladle car and pushes the docking connector to pop out, automatic docking is realized, the diffusion valve is opened after the argon blowing is stopped, the residual argon gas is discharged by the diffusion valve, and the automatic docking connector is retracted.

[0024] The bottom argon blowing control system provided in the embodiment 1 of the utility model has the advantages that the diffusion valve in the control cabinet is changed to the ladle car, the distance of argon diffusion is greatly shortened, the automatic docking connector is quickly retracted, the probability of the automatic docking connector being damaged is reduced, better conditions are created for the normal production of the refining system, and the damage rate of the automatic docking connector is reduced from 90% to 10%.

[0025] As Fig. 2As shown in some embodiments, the argon connecting pipeline 1 comprises a first stop valve 101, a second stop valve 104, a pressure limiting valve 108, a fifth stop valve 109, an electric feedback valve 110, a third stop valve 105, a control valve 106, a sixth stop valve 111 and a seventh stop valve 112, one end of the first stop valve 101 is connected with an argon source interface, the other end of the first stop valve 101 is connected with one end of the second stop valve 104, the other end of the second stop valve 104 is connected with the input end of the pressure limiting valve 108, the output end of the pressure limiting valve 108 is connected with one end of the fifth stop valve 109, the other end of the fifth stop valve 109 is connected with the electric feedback valve 110; one end of the third stop valve 105 is connected with one end of the second stop valve 104, the other end of the third stop valve 105 is connected with one end of the control valve 106, the other end of the control valve 106 is connected with one end of the sixth stop valve 111, the other end of the sixth stop valve 111 is connected with one end of the seventh stop valve 112, one end of the sixth stop valve 111 is connected with the other end of the electric feedback valve 110.

[0026] As some embodiments of the utility model, the argon connecting pipeline 1 still includes fourth stop valve 107, fourth stop valve 107 is connected in parallel with control valve 106.

[0027] As some embodiments of the utility model, the other end of the first stop valve 101 is connected with one end of the second stop valve 104 through the filter 102, specifically, one end of the filter 102 is connected with the other end of the first stop valve 101, the other end of the filter 102 is connected with one end of the second stop valve 104, so as to facilitate filtering argon.

[0028] As some embodiments of the utility model, the first pressure sensor 103 is also installed at one end of the second stop valve 104, and the first pressure sensor 103 is arranged to facilitate collecting the pressure at one end of the second stop valve 104.

[0029] As some embodiments of the utility model, the second pressure sensor 113 is arranged at the other end of the electric feedback valve 110, and the second pressure sensor 113 is arranged to facilitate collecting the pressure at the other end of the electric feedback valve 110.

[0030] As some embodiments of the utility model, the other end of the electric feedback valve 110 is connected with the input end of the flow control cabinet 2 of the bottom blowing argon system through the argon connecting cable of the ladle car.

[0031] As some embodiments of the utility model, the first stop valve 101, the third stop valve 105, the second stop valve 104 and the sixth stop valve 111 can all be ball valves. This setting facilitates implementation.

[0032] As some embodiments of the utility model, control valve 106 is solenoid valve.

[0033] As some embodiments of the utility model, electric feedback valve 110 is normally open valve, fifth stop valve 109 and fourth stop valve 107 are gate valve.

[0034] The utility model discloses a working principle is:

[0035] The utility model inserts the original diffusion valve control circuit into the ladle car cable reel, and then changes the diffusion valve from the ladle car body control cabinet to the ladle car, greatly shortens the distance of argon diffusion, makes the automatic butt joint retract quickly, reduces the probability of automatic butt joint damage, creates better conditions for the normal production of the refining system, and reduces the automatic butt joint damage rate from 90% to 10%.

[0036] In the description of the utility model, it is understood that the orientation or positional relationship indicated by 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" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model.

[0037] 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 indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0038] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated, can be mechanically connected, or can be electrically connected or can communicate with each other, can be directly connected, or can be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0040] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0041] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A bottom argon blowing control system, characterized by, The utility model relates to a kind of argon connection pipeline (1) and bottom argon blowing system flow control cabinet (2), the output end of the argon connection pipeline (1) is connected in the input end of bottom argon blowing system flow control cabinet (2), the output end of the bottom argon blowing system flow control cabinet (2) is provided with diffusion valve (4), and the diffusion valve (4) is arranged on ladle car (3). The argon connection pipeline (1) includes a first stop valve (101), a second stop valve (104), a pressure limiting valve (108), a fifth stop valve (109), an electric feedback valve (110), a third stop valve (105), a control valve (106), a sixth stop valve (111), and a seventh stop valve (112). One end of the first stop valve (101) is connected to an argon source interface. The other end of the first stop valve (101) is connected to one end of the second stop valve (104). The other end of the second stop valve (104) is connected to the input end of the pressure limiting valve (108). The output end of the pressure limiting valve (108) is connected to one end of the fifth stop valve (109). The other end of the fifth stop valve (109) is connected to the electric feedback valve (110). One end of the third stop valve (105) is connected to one end of the second stop valve (104). The other end of the third stop valve (105) is connected to one end of the control valve (106). The other end of the control valve (106) is connected to one end of the sixth stop valve (111). The other end of the sixth stop valve (111) is connected to one end of the seventh stop valve (112). One end of the sixth stop valve (111) is connected to the other end of the electric feedback valve (110).

2. The bottom argon blowing control system according to claim 1, wherein, The argon connection pipeline (1) further includes a fourth stop valve (107) connected in parallel to the control valve (106).

3. The bottom argon blowing control system according to claim 2, wherein, The other end of the first stop valve (101) is connected to one end of the second stop valve (104) through a filter (102).

4. The bottom argon blowing control system according to claim 2, wherein, One end of the second stop valve (104) is further provided with a pressure sensor (103).

5. The bottom argon blowing control system according to claim 4, wherein The other end of the electric feedback valve (110) is provided with a second pressure sensor (113).

6. The bottom argon blowing control system according to claim 2, wherein, The other end of the electric feedback valve (110) is connected to the input end of the bottom argon blowing system flow control cabinet (2) through an argon ladle car towing cable.

7. The bottom argon blowing control system according to claim 2, wherein The first stop valve (101), the third stop valve (105), the second stop valve (104), and the sixth stop valve (111) are all ball valves.

8. The bottom argon blowing control system according to claim 2, wherein, The control valve (106) is an electromagnetic valve.

9. The bottom argon blowing control system according to claim 2, wherein, The electric feedback valve (110) is a normally open valve.

10. The bottom argon blowing control system according to claim 2, wherein, ​

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