Automatic flow control device of casting and rolling machine

Abstract

The utility model relates to the technical field of casting and rolling machine devices, in particular to an automatic flow control device of a casting and rolling machine, which is used for controlling the releasing speed of a smelting furnace to the casting and rolling machine. The automatic flow control device of the casting and rolling machine comprises a motor, a transmission structure and a furnace mouth drill rod, the motor is arranged on one side of the releasing pipeline, the output end of the motor is connected with the transmission structure, the transmission structure is arranged on the releasing pipeline in a crossing mode, and the furnace mouth drill rod is erected on the transmission structure and penetrates into the releasing pipeline. The discharging speed of the smelting furnace to the casting and rolling machine is controlled by driving the furnace mouth drill rod through the motor, the automation degree is high, the labor cost is saved, the labor intensity of workers is reduced, the production efficiency is improved, the stability and the reliability of flow control in a discharging pipeline in the production process are ensured, and the capability of dealing with unfavorable conditions is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting and rolling machine devices, and in particular to an automatic flow control device for a casting and rolling machine. Background Art

[0002] Casting and rolling is a process of rolling liquid metal into semi-finished or finished products, referred to as continuous casting and rolling. It refers to the process in which the molten metal is rolled and deformed while solidifying during continuous casting. The liquid metal is poured directly into the roll gap. The rolls not only act as a crystallizer but also roll and deform the metal at the same time. This process is also called liquid rolling or ingot rolling.

[0003] During the casting and rolling process, a stable liquid surface between the smelting furnace and the casting and rolling mill is crucial to the smooth progress of rolling. The liquid surface is kept stable by a flow control device through controlling the outlet flow of the smelting furnace. Using a furnace mouth braze as a flow control device to control the outlet flow of the smelting furnace is a common method of casting and rolling production. Therefore, stable control of the furnace mouth braze is of great significance to casting and rolling production. However, in the prior art, when the smelting furnace is discharged, it is usually necessary to manually hit the tail end of the furnace mouth braze with a hammer, and use the plug of the furnace mouth braze to block the outlet of the smelting furnace. This not only increases the labor cost and labor intensity, but also lacks reliability and stability. Each time the outlet is manually blocked, whether the outlet of the smelting furnace is completely blocked depends entirely on the experience of the staff. There are great uncertainties. As the liquid level in the furnace rises and the pressure increases, it is also very likely to break the furnace mouth braze, resulting in a large amount of overflow of molten metal. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an automatic flow control device for a casting and rolling mill, which is used to solve the problems in the prior art that a large amount of manual labor is required and reliability and stability are lacking.

[0005] To achieve the above-mentioned purpose, the utility model provides an automatic flow control device for a casting and rolling mill, which is used to control the discharge speed of a smelting furnace to the casting and rolling mill, a discharge pipe is connected between the discharge port of the smelting furnace and the casting and rolling mill, and a bracket is arranged on one side of the smelting furnace. The utility model is characterized in that the automatic flow control device for the casting and rolling mill comprises a motor, a transmission structure and a furnace mouth braze, the motor is arranged on one side of the discharge pipe, the output end of the motor is connected to the transmission structure, the transmission structure is straddled on the discharge pipe, and the furnace mouth braze is mounted on the transmission structure and penetrates into the discharge pipe;

[0006] The transmission structure includes a swing rod 1, a swing rod 2 and a transmission cross rod, one end of the swing rod 1 is connected to the output end of the motor, the other end of the swing rod 1 is rotatably connected to the swing rod 2, the swing rod 2 is connected to the transmission cross rod, the transmission cross rod is rotatably connected to the discharge pipe, a support plate is provided on the transmission cross rod, a U-shaped groove is provided on the support plate, and the furnace mouth brazing frame is mounted on the U-shaped groove.

[0007] Furthermore, the motor is fixed on the bracket through a support 1, and supports 2 are symmetrically arranged on both sides of the discharge pipe. A bearing seat is arranged on each of the supports 2, and the transmission cross bar is passed through the bearing seat.

[0008] Furthermore, one end of the transmission cross bar away from the swing bar two is connected to the swing bar three, and one end of the swing bar three away from the transmission cross bar is provided with a handle.

[0009] Furthermore, one end of the swing rod 1 away from the motor is connected to a connecting rod, one end of the swing rod 2 is provided with a waist-shaped hole, and the connecting rod is inserted into the waist-shaped hole.

[0010] Furthermore, the furnace mouth brazing comprises a brazing rod, a plug and a support rod, the plug is arranged at the end of the brazing rod, the support rod is arranged in the middle of the brazing rod, and the support rod is mounted in the U-shaped groove.

[0011] Furthermore, the automatic flow control device of the casting and rolling mill also includes a liquid level detection device, which includes an angular displacement sensor and a buoy. The angular displacement sensor is fixed to the discharge pipe through a support three, and the angular displacement sensor is connected to a balance rod. The buoy is connected to one end of the balance rod. The buoy is arranged in the discharge pipe for calibrating the liquid level in the discharge pipe, and the angular displacement sensor is electrically connected to the motor.

[0012] Furthermore, a liquid level alarm device is provided on one side of the discharge pipe, and the liquid level alarm device includes a mounting frame and a laser rangefinder, one end of the mounting frame is fixed on the ground, the laser rangefinder is installed on the other end of the mounting frame, and the laser rangefinder is arranged above the discharge pipe, and the laser rangefinder is connected to an alarm.

[0013] Furthermore, the motor is connected to an EPS power supply, and the EPS power supply is used to provide emergency power to the motor in the event of a power outage.

[0014] Beneficial effects of the utility model:

[0015] The utility model controls the discharge flow of the smelting furnace to the casting and rolling mill by driving the furnace mouth brazing by a motor, has a high degree of automation, saves labor costs, reduces the labor intensity of the staff, improves production efficiency, and ensures the stability and reliability of the flow control in the discharge pipeline during the production process;

[0016] The utility model is provided with a liquid level detection device, through which the liquid level detection device is used to instantly detect the liquid level height in the discharge pipe, and the operation of the motor is controlled according to the detection situation of the liquid level detection device, so as to drive the furnace mouth brazing to adjust the discharge flow rate of the smelting furnace, so that the liquid level detection in the discharge pipe is more timely, and the control of the liquid level is more reliable and accurate, avoiding human errors that may be caused by operating based on experience, and is conducive to ensuring the stability of the metal liquid in the discharge pipe and improving the product quality;

[0017] The utility model fully considers the unfavorable factors, is provided with a laser rangefinder and an alarm, and by setting the upper and lower limits of the liquid level in the discharge pipe, in the case that the liquid level detection device fails, it can timely detect the abnormal situation of the liquid level in the discharge pipe and timely alarm; the transmission structure is respectively connected to the motor and the handle, and in the case that the motor cannot be used normally, the handle is used to control the furnace mouth brazing to continue to complete the production work or to timely block the smelting furnace outlet; the motor is also connected to an EPS power supply, and the EPS power supply can be used as an emergency power supply for the motor when the power is off; the utility model enhances the ability of the equipment to cope with emergencies in the production process by arranging the laser rangefinder, the alarm, the handle and the EPS power supply, which is beneficial to improving the safety and reliability of the equipment and ensuring the use effect of the device in various situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The overall layout of the device is shown in Figure 1. Figure 1 ;

[0020] Figure 2 The overall layout of the device is shown in Figure 1. Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the motor and transmission structure layout;

[0022] Figure 4 It is a schematic diagram of the arrangement of the liquid level detection device and the liquid level alarm device;

[0023] Among them: 1- discharge pipe, 2- bracket, 3- motor, 31- support one, 4- transmission structure, 41- swing rod one, 42- swing rod two, 43- transmission cross bar, 44- support plate, 45- support two, 46- connecting rod, 47- swing rod three, 48- handle, 5- furnace mouth drill, 51- drill rod, 52- plug, 53- support rod, 6- liquid level detection device, 61- angular displacement sensor, 62- buoy, 63- support three, 64- balance bar, 7- liquid level alarm device, 71- mounting bracket, 72- laser rangefinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In a specific embodiment of the present invention, Figure 1 , Figure 2 As shown, an automatic flow control device for a casting and rolling mill is used to control the discharge speed of a smelting furnace to the casting and rolling mill. A discharge pipe 1 is connected between the discharge port of the smelting furnace and the casting and rolling mill. A bracket 2 is arranged on one side of the smelting furnace. The automatic flow control device for the casting and rolling mill comprises a motor 3, a transmission structure 4 and a furnace mouth braze 5. The motor 3 is arranged on one side of the discharge pipe 1. The motor 3 is fixed on the bracket 2 through a support 31. The output end of the motor 3 is connected to the transmission structure 4. The transmission structure 4 is straddled on the discharge pipe 1. The furnace mouth braze 5 is mounted on the transmission structure 4 and penetrates into the discharge pipe 1.

[0026] like Figure 3 As shown, the transmission structure 4 includes a swing rod 1 41, a swing rod 2 42 and a transmission cross bar 43, one end of the swing rod 1 41 is connected to the output end of the motor 3, the other end of the swing rod 1 41 is rotatably connected to the swing rod 2 42, the end of the swing rod 1 41 away from the motor 3 is connected with a connecting rod 46, one end of the swing rod 2 42 is provided with a waist-shaped hole, the connecting rod 46 is inserted into the waist-shaped hole, support seats 2 45 are symmetrically provided on both sides of the discharge pipe 1, the support seats 2 45 are both provided with bearing seats, the transmission cross bar 43 is inserted into the bearing seats, the swing rod 2 42 is connected to the transmission cross bar 43, the transmission cross bar 43 is rotatably connected to the discharge pipe 1, a support plate 44 is provided on the transmission cross bar 43, the support plate 44 is provided with a U-shaped groove, the furnace mouth brazing 5 is mounted on the U-shaped groove, the end of the transmission cross bar 43 away from the swing rod 2 42 is connected to the swing rod 3 47, and the end of the swing rod 3 47 away from the transmission cross bar 43 is provided with a handle 48.

[0027] like Figure 2As shown, the furnace mouth drill 5 includes a drill rod 51, a plug 52 and a support rod 53. The plug 52 is arranged at the end of the drill rod 51, the support rod 53 is arranged in the middle of the drill rod 51, and the support rod 53 is mounted in the U-shaped groove.

[0028] like Figure 4 As shown, the automatic flow control device of the casting and rolling mill also includes a liquid level detection device 6, which includes an angular displacement sensor 61 and a buoy 62. The angular displacement sensor 61 is fixed on the discharge pipe 1 through a support three 63. The angular displacement sensor 61 is connected to a balance rod 64. The buoy 62 is connected to one end of the balance rod 64. The buoy 62 is arranged in the discharge pipe 1 for calibrating the liquid level in the discharge pipe 1. The angular displacement sensor 61 is electrically connected to the motor 3.

[0029] A liquid level alarm device 7 is provided on one side of the discharge pipe 1. The liquid level alarm device 7 includes a mounting frame 71 and a laser rangefinder 72. One end of the mounting frame 71 is fixed on the ground, and the laser rangefinder 72 is installed on the other end of the mounting frame 71. The laser rangefinder 72 is provided above the discharge pipe 1, and the laser rangefinder 72 is connected to an alarm.

[0030] The motor 3 is connected to an EPS power supply, and the EPS power supply is used to provide emergency power to the motor 3 when a power outage occurs.

[0031] The use process of this utility model:

[0032] When the device is running, the liquid level detection device 6 is used to monitor the liquid level in the discharge pipe 1 in real time. According to the liquid level feedback from the liquid level detection device 6, the working state of the motor 3 is adjusted, and the swing rod 1 41, the swing rod 2 42 and the transmission cross bar 43 are driven in sequence by the motor 3, and finally the support plate 44 is driven to swing back and forth. The reciprocating swing of the support plate 44 drives the furnace mouth brazing 5 to move back and forth, and the discharge speed of the smelting furnace is changed by adjusting the blocking condition of the furnace mouth brazing 52 on the discharge port of the smelting furnace; the laser rangefinder 72 of the liquid level alarm device 7 monitors the liquid in the discharge pipe 1 in real time. If the liquid level changes, such as the failure of the liquid level detection device 6 to reflect the liquid level in real time, resulting in the liquid level exceeding or falling below the limit, the alarm will immediately sound an alarm to remind the staff to deal with it in time; when the motor 3 fails, by turning the handle 48, the swing rod 3 47 and the transmission cross bar 43 are driven in turn, so that the furnace mouth braze 5 can continue to be controlled to block the discharge port of the smelting furnace or continue to maintain the discharge; in the event of a temporary power outage, the EPS power supply will start up in an emergency to supply power to the motor 3 and meet the operation requirements of the motor 3 for a period of time, so that the staff has time to deal with the emergency.

[0033] Except for special instructions and further limitation of one preferred or optional technical means as another technical means, the preferred and optional technical means disclosed in the utility model can be arbitrarily combined to form several different technical solutions. Therefore, equivalent changes made according to the claims are still within the scope covered by the utility model.

Claims

1. An automatic flow control device for a casting and rolling mill, used for controlling the discharge speed of a smelting furnace to the casting and rolling mill, a discharge pipe (1) is connected between the discharge port of the smelting furnace and the casting and rolling mill, a bracket (2) is arranged on one side of the smelting furnace, and characterized in that: The automatic flow control device of the casting and rolling mill comprises a motor (3), a transmission structure (4) and a furnace mouth brazing (5), wherein the motor (3) is arranged on one side of the discharge pipe (1), the output end of the motor (3) is connected to the transmission structure (4), the transmission structure (4) is straddled on the discharge pipe (1), and the furnace mouth brazing (5) is mounted on the transmission structure (4) and penetrates into the discharge pipe (1); The transmission structure (4) comprises a swing rod 1 (41), a swing rod 2 (42) and a transmission cross bar (43); one end of the swing rod 1 (41) is connected to the output end of the motor (3); the other end of the swing rod 1 (41) is rotationally connected to the swing rod 2 (42); the swing rod 2 (42) is connected to the transmission cross bar (43); the transmission cross bar (43) is rotationally connected to the discharge pipe (1); a support plate (44) is provided on the transmission cross bar (43); a U-shaped groove is provided on the support plate (44); and the furnace mouth brazing braze (5) is mounted on the U-shaped groove.

2. The automatic flow control device for a casting and rolling mill according to claim 1, characterized in that: The motor (3) is fixed to the bracket (2) via a support 1 (31), and support 2 (45) is symmetrically arranged on both sides of the discharge pipe (1), and a bearing seat is arranged on each of the support 2 (45), and the transmission cross rod (43) is inserted into the bearing seat.

3. The automatic flow control device for a casting and rolling mill according to claim 1, characterized in that: One end of the transmission cross bar (43) away from the second swing bar (42) is connected to a third swing bar (47), and one end of the third swing bar (47) away from the transmission cross bar (43) is provided with a handle (48).

4. The automatic flow control device for a casting and rolling mill according to claim 1, characterized in that: One end of the swing rod 1 (41) away from the motor (3) is connected to a connecting rod (46), one end of the swing rod 2 (42) is provided with a waist-shaped hole, and the connecting rod (46) is inserted into the waist-shaped hole.

5. The automatic flow control device for a casting and rolling mill according to claim 1, characterized in that: The furnace mouth drill (5) comprises a drill rod (51), a plug (52) and a support rod (53), wherein the plug (52) is arranged at the end of the drill rod (51), the support rod (53) is arranged in the middle of the drill rod (51), and the support rod (53) is mounted in the U-shaped groove.

6. The automatic flow control device for a casting and rolling mill according to claim 1, characterized in that: The automatic flow control device of the casting and rolling mill also includes a liquid level detection device (6), the liquid level detection device (6) includes an angular displacement sensor (61) and a buoy (62), the angular displacement sensor (61) is fixed to the discharge pipe (1) through a support three (63), the angular displacement sensor (61) is connected to a balance rod (64), the buoy (62) is connected to one end of the balance rod (64), the buoy (62) is arranged in the discharge pipe (1) and is used to calibrate the liquid level in the discharge pipe (1), and the angular displacement sensor (61) is electrically connected to the motor (3).

7. The automatic flow control device for a casting and rolling mill according to claim 1, characterized in that: A liquid level alarm device (7) is provided on one side of the discharge pipe (1), and the liquid level alarm device (7) comprises a mounting frame (71) and a laser rangefinder (72), one end of the mounting frame (71) is fixed on the ground, the laser rangefinder (72) is installed on the other end of the mounting frame (71), and the laser rangefinder (72) is arranged above the discharge pipe (1), and the laser rangefinder (72) is connected to an alarm.

8. The automatic flow control device for a casting and rolling mill according to claim 1, characterized in that: The motor (3) is connected to an EPS power supply, and the EPS power supply is used to provide emergency power to the motor (3) when a power outage occurs.

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