Sand adding device for steel ladle sliding nozzle

Abstract

The utility model relates to the technical field of sand adding devices, in particular to a sand adding device for a steel ladle sliding nozzle, which comprises a maintenance platform, a steel ladle with the steel ladle sliding nozzle, a driving mechanism and a rotating mechanism, the driving mechanism and the rotating mechanism are mounted on the maintenance platform and are in driving connection, and a feeding mechanism is fixedly mounted on one side of the rotating mechanism. The feeding mechanism comprises a rotating frame, a feeding hopper, a discharging valve and a feeding pipe, the feeding hopper, the discharging valve and the feeding pipe are arranged on the rotating frame from top to bottom, and the driving mechanism drives the rotating mechanism to rotate so as to drive the feeding mechanism to swing back and forth, so that the feeding mechanism is switched between a standby position and a working position; and the feeding pipe is positioned above a steel ladle sliding nozzle of the steel ladle. The utility model has the advantages of few structural components, simplified structural form, small occupied space, no influence on the operation of peripheral equipment, improved conveying efficiency of stuffing sand, convenience in overhaul and maintenance, and easier realization of unmanned automatic operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand adding device technical field, concretely relates to a sand adding device of ladle sliding nozzle. BACKGROUND

[0002] In the converter or electric furnace steelmaking process system, the ladle sliding nozzle is used to realize the molten steel flow regulation from the ladle to the tundish, thereby ensuring continuous casting. Before the ladle receives the molten steel after smelting is completed, the ladle sliding nozzle at the bottom of the ladle must be treated by adding sand, that is, filling the high-temperature drainage sand to avoid direct contact of the high-temperature molten steel with the opening and closing mechanism of the ladle sliding nozzle at the bottom of the ladle. If the sand filling effect of the ladle sliding nozzle is not good, the most direct impact is that the high-temperature molten steel is bonded with the opening and closing mechanism of the ladle sliding nozzle at the bottom of the ladle, and the opening and closing mechanism of the ladle sliding nozzle cannot be normally opened during casting, which needs to be processed offline, directly affecting production.

[0003] At present, the sand adding device of the ladle sliding nozzle of the existing steelmaking process technology basically adopts manual or semi-automatic device, that is, workers need to manually operate on the operation platform every time sand is added. The on-site environment of the sand adding device is poor, high temperature and dusty, and the operator is extremely uncomfortable and seriously affects the operation effect. From the sand adding devices disclosed in the Chinese patent documents with publication numbers CN114515828B, CN222492157U and CN222268682U, the following problems exist: (1) The sand adding device has many structural components, the structure is complex, the space occupation is large, and the operation of the surrounding equipment is easily affected; (2) The conveying efficiency of the drainage sand is not high, the conveying time is too long, and it is not suitable for the production rhythm of modern short process. (3) The structure has many components, the automatic sand adding interlocking control is complex, and the failure rate is high. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a sand adding device of ladle sliding nozzle to solve the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a sand adding device of ladle sliding nozzle, comprising a maintenance platform, a ladle with a ladle sliding nozzle, and a driving mechanism and a rotating mechanism installed on the maintenance platform and drivingly connected, one side of the rotating mechanism is fixedly installed with a feeding mechanism, the feeding mechanism comprises a rotating frame, a feeding hopper, a discharging valve and a feeding pipe arranged from top to bottom on the rotating frame, the driving mechanism drives the rotating mechanism to rotate to drive the feeding mechanism to swing back and forth, thereby switching the feeding mechanism between standby position and working position, and when the feeding mechanism is in the working position, the feeding pipe is located above the ladle sliding nozzle of the ladle.

[0006] Preferably, the rotating frame has an upper steel structure platform and a lower steel structure platform arranged in parallel. The feeding hopper is installed through the upper steel structure platform. A weighing head is provided between the feeding hopper and the upper steel structure platform. The unloading valve is located between the discharge port of the feeding hopper and the inlet of the feeding pipe.

[0007] Preferably, it also includes bolted connectors. The rotating mechanism includes an upright rotating shaft and a mounting bracket fixedly connected to one side of the rotating shaft. The rotating frame is fixedly mounted on the mounting bracket by bolted connectors.

[0008] Preferably, the upper and lower ends of the rotating shaft are respectively provided with an upper hinge position and a lower hinge position, and the rotating shaft is rotatably mounted on the inspection and maintenance platform through the upper hinge position and the lower hinge position.

[0009] Preferably, the cross-section of the mounting bracket is an isosceles triangle, and the mounting bracket gradually increases in size from the axis of rotation toward the rotating frame.

[0010] Preferably, a rotation limiting part is installed on the side of the rotating shaft away from the rotating frame, and the rotation limiting part cooperates with the blocking and limiting part of the maintenance platform to limit the rotation stroke of the rotating shaft.

[0011] Preferably, the driving mechanism is an electro-hydraulic actuator, and a side hinge position is provided on one side of the mounting bracket, with the actuator end of the electro-hydraulic actuator hinged at the side hinge position.

[0012] This utility model has the following beneficial effects:

[0013] (1) The feeding mechanism integrates the feeding hopper, unloading valve and feeding pipe on the rotating frame and swings together. There is no need to set up a separate conveying mechanism for diverting sand. The structure has fewer components, simplifies the structure, occupies less space, and will not affect the operation of surrounding equipment.

[0014] (2) It improves the conveying efficiency of the diversion sand, reduces the investment cost of the equipment, speeds up the smelting time, reduces the temperature drop of the steel ladle, helps to reduce costs and increase efficiency, and is more adaptable to the production rhythm of modern short process.

[0015] (3) It can achieve advance material preparation and buffering, has a simple structure, is easy to inspect and maintain, and is easier to achieve unmanned automated operation. Attached Figure Description

[0016] Figure 1 This is a front view of an embodiment of the present invention.

[0017] Figure 2 This is a top view of an embodiment of the present invention.

[0018] Figure 3 yes Figure 1 The sectional view at point AA.

[0019] Figure 4 yes Figure 2 The sectional view at point BB.

[0020] Figure 5 yes Figure 4 Sectional view at point CC.

[0021] In the diagram: 1-Rotating shaft; 1.1-Upper hinge position; 1.2-Lower hinge position; 1.3-Mounting bracket; 1.4-Side hinge position; 1.5-Rotation limit part; 2-Rotating frame; 2.1-Feeding hopper; 2.2-Discharge valve; 2.3-Feeding pipe; 2.4-Weighing head; 3-Drive mechanism; 4-Bolt connection; 5-Steel ladle sliding gate; 6-Maintenance platform; 7-Steel ladle. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] See Figures 1-5As shown in the figure, as an embodiment of the present invention, a sand feeding device for a ladle sliding nozzle 5 is provided, including a maintenance platform 6, a ladle 7 having a ladle sliding nozzle 5, and a drive mechanism 3 and a rotating mechanism installed on the maintenance platform 6 and drivenly connected thereto. A feeding mechanism is fixedly installed on one side of the rotating mechanism. The feeding mechanism includes a rotating frame 2 and a feeding hopper 2.1, a discharge valve 2.2 and a feeding pipe 2.3 arranged from top to bottom on the rotating frame 2. The drive mechanism 3 drives the rotating mechanism to rotate so as to drive the feeding mechanism to swing back and forth, thereby allowing the feeding mechanism to switch between a standby position and a working position. When the feeding mechanism is in the working position, the feeding pipe 2.3 is located above the ladle sliding nozzle 5 of the ladle 7.

[0026] The sand-adding device for the sliding nozzle 5 of the ladle provided in this embodiment is applicable to both newly built argon blowing station facilities for the ladle 7 and sand-adding devices for the sliding nozzle 5 of the ladle in the maintenance area of ​​the ladle 7. It has the following advantages: (1) The feeding mechanism integrates the feeding hopper 2.1, the unloading valve 2.2, and the feeding pipe 2.3 on the rotating frame 2 and swings together. There is no need to set up a separate conveying mechanism for the diverting sand. The structure has fewer components, simplifies the structure, occupies less space, and will not affect the operation of the surrounding equipment. (2) It improves the conveying efficiency of the diverting sand, reduces the equipment investment cost, speeds up the smelting time, reduces the temperature drop of the ladle 7, helps to reduce costs and increase efficiency, and is more adaptable to the production rhythm of modern short process. (3) It can realize advance preparation and buffering, has a simple structure, is convenient for inspection and maintenance, and is easier to realize unmanned automated operation.

[0027] In this embodiment, the rotating frame 2 has an upper steel structure platform and a lower steel structure platform arranged in parallel. The feeding hopper 2.1 is installed through the upper steel structure platform by a mounting bracket. A weighing head 2.4 is provided between the feeding hopper 2.1 and the upper steel structure platform. The unloading valve 2.2 is provided between the discharge port of the feeding hopper 2.1 and the inlet of the feeding pipe 2.3, thereby ensuring the assembly stability between the components of the feeding mechanism.

[0028] In this embodiment, a bolt connector 4 is also included. The rotating mechanism includes a vertically arranged rotating shaft 1 and a mounting bracket 1.3 fixedly connected to one side of the rotating shaft 1. The rotating frame 2 is fixedly mounted on the mounting bracket 1.3 by the bolt connector 4. The cross-section of the mounting bracket 1.3 is an isosceles triangle. The mounting bracket 1.3 gradually increases in size from the rotating shaft 1 toward the rotating frame 2, thereby ensuring the assembly stability between the rotating frame 2 and the mounting bracket 1.3.

[0029] In this embodiment, the upper and lower ends of the rotating shaft 1 are respectively provided with an upper hinge position 1.1 and a lower hinge position 1.2. The rotating shaft 1 is rotatably mounted on the maintenance platform 6 through the upper hinge position 1.1 and the lower hinge position 1.2, thereby improving the installation and working stability of the rotating shaft 1.

[0030] In this embodiment, a rotation limiting part 1.5 is installed on the side of the rotating shaft 1 away from the rotating frame 2. The rotation limiting part 1.5 cooperates with the maintenance platform 6 to limit the rotation stroke of the rotating shaft 1, thereby limiting the movement stroke of the feeding mechanism, ensuring that the feeding mechanism can accurately switch between the standby position and the working position, and at the same time playing a certain protective role.

[0031] In this embodiment, the drive mechanism 3 is an electro-hydraulic actuator, and a side hinge position 1.4 is provided on one side of the mounting bracket 1.3. The end of the electro-hydraulic actuator is hinged at the side hinge position 1.4. Of course, in other cases, the drive mechanism 3 can also be a hydraulic cylinder or other transmission methods.

[0032] The working process of this utility model is as follows: During the sand adding waiting period, the sand adding device is in the standby position. The operator adds the guiding sand into the feeding hopper 2.1 through the maintenance platform 6. Sand adding stops after the weighing head 2.4 sends a signal. The guiding sand is stored in the feeding hopper 2.1. When the ladle 7 car under the converter moves to the sand adding position of the ladle sliding nozzle 5, the drive mechanism 3 drives the rotating mechanism to rotate, thereby causing the feeding mechanism to swing, so that the feeding mechanism moves from the standby position to the working position. After the position is accurate, the feeding pipe 2.3 is aligned with the sand adding position of the ladle sliding nozzle 5. At this time, the unloading valve 2.2 is opened, and the guiding sand is added into the ladle sliding nozzle 5 through the feeding pipe 2.3, thus completing the sand adding process.

[0033] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A sand-adding device for a steel ladle sliding gate, characterized in that: The system includes a maintenance platform, a ladle with a sliding gate, and a drive mechanism and a rotating mechanism mounted on the maintenance platform and connected to each other. A feeding mechanism is fixedly installed on one side of the rotating mechanism. The feeding mechanism includes a rotating frame and a feeding hopper, a discharge valve, and a feeding pipe arranged from top to bottom on the rotating frame. The drive mechanism drives the rotating mechanism to rotate, thereby causing the feeding mechanism to swing back and forth, which in turn allows the feeding mechanism to switch between a standby position and a working position. When the feeding mechanism is in the working position, the feeding pipe is located above the sliding gate of the ladle.

2. The sand-adding device for the sliding gate of a steel ladle according to claim 1, characterized in that: The rotating frame has an upper steel structure platform and a lower steel structure platform arranged in parallel. The feeding hopper is installed through the upper steel structure platform. A weighing head is set between the feeding hopper and the upper steel structure platform. The unloading valve is set between the discharge port of the feeding hopper and the inlet of the feeding pipe.

3. The sand-adding device for the sliding gate of a steel ladle according to claim 1, characterized in that: It also includes bolted connectors, and the rotating mechanism includes an upright rotating shaft and a mounting bracket fixedly connected to one side of the rotating shaft. The rotating frame is fixedly mounted on the mounting bracket by bolted connectors.

4. The sand-adding device for the sliding gate of a steel ladle according to claim 3, characterized in that: The upper and lower ends of the rotating shaft are respectively provided with an upper hinge position and a lower hinge position. The rotating shaft is rotatably mounted on the inspection and maintenance platform through the upper hinge position and the lower hinge position.

5. The sand-adding device for the sliding gate of a steel ladle according to claim 3, characterized in that: The cross-section of the mounting bracket is an isosceles triangle, and the bracket gradually increases in size from its rotation axis toward the rotating frame.

6. The sand-adding device for the sliding gate of a steel ladle according to claim 3, characterized in that: A rotation limiter is installed on the side of the rotating shaft away from the rotating frame. The rotation limiter cooperates with the blocking limiter of the maintenance platform to limit the rotation stroke of the rotating shaft.

7. The sand-adding device for the sliding gate of a steel ladle according to claim 3, characterized in that: The drive mechanism is an electro-hydraulic actuator. A side hinge position is provided on one side of the mounting bracket, and the end of the electro-hydraulic actuator is hinged at the side hinge position.

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