A ladle car for facilitating the addition of drainage sand and a method of using the same

Abstract

The present application belongs to the technical field of steel metallurgy, and relates to a ladle car facilitating the addition of drainage sand and a use method thereof. The ladle car comprises a drainage sand adding mechanism arranged on a body of the ladle car. The drainage sand adding mechanism comprises a combined sand adding device and a sand adding device moving device. The combined sand adding device is in a funnel shape as a whole, and is composed of a lower hopper pipe and an upper combined hopper mouth. The combined hopper mouth comprises three sheet structures which can be combined into a funnel-shaped hopper mouth. One of the sheet structures is fixedly connected with the lower hopper pipe, and the other two sheet structures are movable sheet structures. A sliding track is arranged between each of the movable sheet structures and the fixed sheet structure. The observation space provided by the combined sand adding device can effectively help a sand adding worker to find the relative position relationship between a nozzle and the hopper pipe, greatly reduces the difficulty of inserting the hopper pipe into the nozzle, and improves the hit rate of the drainage sand put into the nozzle of the ladle. The present application has important practical significance for improving the production efficiency and reducing the production cost of a steel enterprise.

Description

Technical Field

[0001] This invention relates to the field of iron and steel metallurgy technology, specifically to a ladle car that facilitates the addition of diversion sand and its usage method. Background Technology

[0002] The ladle is the main equipment for holding molten steel. Drainage sand needs to be added to the ladle to facilitate the outflow of molten steel during casting. Currently, there are several methods for adding drainage sand: (1) Manual throwing. This is the most common method for adding drainage sand. The basic process is that after the ladle is placed on the ladle car, the ladle is moved to the argon blowing sampling platform behind the converter furnace. The drainage sand is manually thrown from directly above the ladle by observing the position of the nozzle. Since the ladle is several meters or even more than ten meters deep, plus the height of the platform, it is quite difficult to accurately hit the nozzle from a height of more than ten meters. The advantage of this method is that it is simple and easy to carry out. One person can complete the entire drainage sand adding work. The disadvantage is that the hit rate is low, resulting in a large consumption of drainage sand. (2) Using a crane to carry auxiliary tools for throwing, such as a funnel-shaped feeder. This method requires inserting the funnel tube into the nozzle. Due to the obstruction of the conical opening of the funnel, it is impossible to observe the position of the lower funnel tube and nozzle from directly above. It can only be observed from the side. When viewed from the side, there can be errors in judging whether the sprue and the funnel pipe are aligned, often requiring multiple adjustments to insert the funnel pipe into the sprue. Furthermore, because the crane operator is far from the sprue, the feeding worker needs to direct the crane operator to move the funnel position; differences in their understanding of distance can also lead to difficulties in inserting the funnel pipe. Therefore, the difficulty in inserting the funnel pipe and the high labor costs are the main drawbacks of this method. In addition, none of the above methods consider the poor thermal condition of the ladle, i.e., poor lighting. Since the feeding worker mainly observes the position of the sprue through the light generated by the red-hot ladle, in some cases, due to production disruptions or other reasons, the ladle may have a long waiting time, resulting in a lower internal temperature and poor lighting inside the ladle, making it impossible to observe the position of the sprue pipe with the naked eye.

[0003] Therefore, the current method of adding diverting sand to steel ladles has problems such as difficulty in inserting the auxiliary tool funnel into the water inlet, high cost, low accuracy of application, and inability to observe the water inlet position when the steel ladle is in poor thermal condition. Summary of the Invention

[0004] To address the problems existing in the prior art, the main objective of this invention is to propose a ladle car and its usage method that facilitates the addition of diversion sand, which can effectively reduce the difficulty of inserting the feeding auxiliary tool funnel into the water inlet and improve the hit rate of diversion sand addition at the ladle water inlet.

[0005] To address the aforementioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0006] A ladle car for adding diverting sand includes a ladle car body and a diverting sand adding mechanism installed on the ladle car body. The diverting sand adding mechanism includes a combined sand adder and a sand adder moving device. The combined sand adder is funnel-shaped and consists of a lower bucket tube and an upper combined bucket opening. The combined bucket opening includes three plate-like structures that can be combined to form a funnel-shaped opening. One plate-like structure is fixedly connected to the lower bucket tube, and the other two plate-like structures are movable plate-like structures. Sliding rails are provided between the movable plate-like structures and the fixed plate-like structures.

[0007] As a preferred embodiment of the ladle car for adding diverting sand according to the present invention, a limiter is provided inside the sliding track to prevent the movable sheet structure from separating from the fixed sheet structure.

[0008] As a preferred embodiment of the ladle car for adding diverting sand according to the present invention, the sand adder moving device includes a support frame movably mounted on the body of the ladle car. A telescopic shaft drive motor is provided on the top of the support frame to drive the telescopic shaft which is horizontally arranged along the head and tail direction of the ladle car. A sand adder lifting motor is provided on the telescopic shaft. The combined sand adder lifting is realized by three steel cables that are fixedly connected to a fixed plate structure and two movable plate structures respectively.

[0009] As a preferred embodiment of the ladle car for adding diverting sand according to the present invention, when the steel rope is pulled by the sand adder and the steel rope is in a taut state, the two movable plate-like structures are in an open state; when the steel rope is in a relaxed state, the two movable plate-like structures and the fixed plate-like structure close to form a complete funnel shape.

[0010] As a preferred embodiment of the ladle car for adding diverting sand as described in this invention, the support frame is generally in the form of a cuboid frame, and rollers and guide rails are provided below the support frame, allowing the support frame to move along the guide rails on the ladle car body.

[0011] As a preferred embodiment of the ladle car for adding diverting sand according to the present invention, the roller is embedded in the guide rail, and when the roller moves on the guide rail, the guide rail can provide support for the roller to prevent the support frame from tipping over.

[0012] As a preferred embodiment of the ladle car for adding diverting sand according to the present invention, a searchlight is provided at the retractable front end of the telescopic shaft. When the internal heat condition of the ladle is poor, turning on the searchlight can illuminate the bottom of the ladle, which facilitates the movement and positioning of the combined sand adder.

[0013] As a preferred embodiment of the ladle car for adding diverting sand according to the present invention, the ladle car further includes wheels disposed at the bottom of the ladle car body and ladle seats disposed on the ladle car body; the wheels, ladle car body, and ladle seats are consistent with the existing ladle car structure and are compatible with existing converter equipment.

[0014] To solve the above-mentioned technical problems, according to another aspect of the present invention, the present invention provides the following technical solution:

[0015] A method for using a ladle car that facilitates the addition of diversion sand includes the following steps:

[0016] S1. Drive the ladle car to the sand-adding position. The feeding worker observes the position of the ladle nozzle and moves the sand-draining device to lower the combined sand feeder into the ladle. The combined sand feeder moves to the vicinity of the nozzle. At this time, the movable plate structure is in the open state. The feeding worker can observe the relative position of the combined sand feeder bucket tube and the nozzle directly above the nozzle through the open space. Fine-tune the sand-draining device and continue to lower the combined sand feeder so that it is inserted into the nozzle.

[0017] S2. After the combined sand feeder is inserted into the water inlet, the movable plate structure slides down along the sliding track under its own gravity, and closes with the fixed plate structure to form a complete funnel. The feeding operator puts the diverted sand into the combined sand feeder.

[0018] S3. After the sand is added, the sand-guiding device is reset, completing the sand-guiding operation. The ladle can then be moved to the designated position for steel tapping from the converter.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention proposes a ladle car for adding diverting sand and its usage method. The ladle car includes a diverting sand adding mechanism installed on the car body. The diverting sand adding mechanism includes a combined sand adder and a sand adder moving device. The combined sand adder is funnel-shaped, consisting of a lower bucket tube and an upper combined bucket opening. The combined bucket opening includes three plate-like structures that can be combined to form a funnel-shaped opening. One plate-like structure is fixedly connected to the lower bucket tube, while the other two plate-like structures are movable. Sliding tracks are provided between the plate-like structures and the fixed plate-like structures. The observation space provided by the combined sand adder can effectively help the sand adder to accurately locate the relative position of the water inlet and the bucket tube, greatly reducing the difficulty of inserting the bucket tube into the water inlet and improving the hit rate of diverting sand addition at the ladle water inlet. This has important practical significance for steel enterprises to improve production efficiency and reduce production costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1This is a front view of the ladle car for which the present invention facilitates the addition of diversion sand;

[0023] Figure 2 This is a schematic diagram illustrating the relationship between the support frame and guide rail of the ladle car for adding diverting sand, as per the present invention.

[0024] Figure 3 This is a schematic diagram of the combined sand feeder of the present invention in its open state;

[0025] Figure 4 This is a schematic diagram of the closed state of the combined sand feeder of the present invention.

[0026] Among them: 1-wheel, 2-steel ladle car body, 3-steel ladle seat, 4-support frame, 5-telescopic shaft drive motor, 6-telescopic shaft, 7-sand feeder lifting motor, 8-searchlight, 9-combination sand feeder, 10-support frame drive motor.

[0027] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions described below in conjunction with the embodiments will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention proposes a ladle car that facilitates the addition of diversion sand and its usage method, which has the following advantages:

[0030] (1) The observation space provided by the combined sand feeder can effectively help the sand feeder to find the relative position of the water inlet and the bucket pipe, which greatly reduces the difficulty of inserting the bucket pipe into the water inlet;

[0031] (2) The entire process can be completed by just one person, which reduces labor costs;

[0032] (3) It is not affected by the heat condition of the ladle and the sand addition work can still be completed when the light inside the ladle is too poor to observe the water outlet;

[0033] (4) The sand addition speed is fast and the hit rate is high. It also utilizes the existing steel ladle car structure, which does not require factory space and has a simple structure and low cost.

[0034] like Figure 1-4As shown, one embodiment of the present invention provides a ladle car for adding diverting sand, including a ladle car body 2 and a diverting sand adding mechanism disposed on the ladle car body 2. The diverting sand adding mechanism includes a combined sand adder 9 and a sand adder moving device. The combined sand adder 9 is generally funnel-shaped and consists of a lower bucket tube and an upper combined bucket opening. The combined bucket opening includes three plate-like structures that can be combined into a funnel-shaped bucket opening. One plate-like structure is fixedly connected to the lower bucket tube, and the other two plate-like structures are movable plate-like structures. Sliding rails are provided between the plate-like structures and the fixed plate-like structures.

[0035] In one embodiment of the present invention, a limiter is provided inside the sliding track to prevent the movable sheet structure from detaching from the fixed sheet structure.

[0036] In one embodiment of the present invention, the sand feeder moving device includes a support frame 4 movably mounted on the body 2 of the ladle car. A telescopic shaft drive motor 5 is mounted on the top of the support frame 4 to drive a telescopic shaft 6 horizontally mounted along the front and rear directions of the ladle car. A sand feeder lifting motor 7 is mounted on the telescopic shaft 6 and is fixedly connected to a fixed plate structure and two movable plate structures respectively by three steel cables to realize the lifting of the combined sand feeder 9.

[0037] In one embodiment of the present invention, when the steel rope lifting combined sand feeder 9 is in a taut state, the two movable plate-like structures are in an open state; when the steel rope is in a relaxed state, the two movable plate-like structures and the fixed plate-like structure close to form a complete funnel shape.

[0038] In one embodiment of the present invention, the support frame 4 is in the form of a cuboid frame. A support frame drive motor 10 is arranged below the support frame 4. Rollers and guide rails are provided below the support frame 4. Under the drive of the support frame drive motor 10, the support frame 4 can move along the guide rails on the steel ladle car body 2.

[0039] In one embodiment of the present invention, the roller is embedded in the guide rail, and when the roller moves on the guide rail, the guide rail can provide support for the roller to prevent the support frame 4 from tipping over.

[0040] In one embodiment of the present invention, the telescopic shaft drive motor 5, the sand feeder lifting motor 7, and the support frame drive motor 10 all use the existing power system of the ladle car, and the cables are arranged inside the support frame 4 and the telescopic shaft 6.

[0041] In one embodiment of the present invention, a searchlight 8 is provided at the telescopic front end of the telescopic shaft. When the internal heat condition of the ladle is poor, turning on the searchlight 8 can illuminate the bottom of the ladle, which facilitates the movement and positioning of the combined sand feeder 9.

[0042] In one embodiment of the present invention, the ladle car further includes wheels 1 disposed at the bottom of the ladle car body and ladle seat 3 disposed on the ladle car body 2; the wheels 1, ladle car body 2, and ladle seat 3 are consistent with the existing ladle car structure and are compatible with existing converter equipment.

[0043] An embodiment of the present invention also provides a method for using a ladle car that facilitates the addition of diversion sand, comprising the following steps:

[0044] S1. Drive the ladle car to the sand-adding position. The feeding worker observes the position of the ladle nozzle and moves the sand-draining device to lower the combined sand feeder 9 into the ladle. This moves the combined sand feeder 9 to the vicinity of the nozzle. At this time, the movable plate structure is in the open state. The feeding worker can observe the relative position of the combined sand feeder 9 bucket pipe and the nozzle through the open space directly above the nozzle. Fine-tune the sand-draining device and continue to lower the combined sand feeder 9 so that it is inserted into the nozzle.

[0045] S2. After the combined sand feeder 9 is inserted into the water inlet, the movable plate structure slides down along the sliding track under its own gravity and closes with the fixed plate structure to form a complete funnel. The feeding operator puts the diverted sand into the combined sand feeder 9.

[0046] S3. After the sand is added, the sand-guiding device is reset, completing the sand-guiding operation. The ladle can then be moved to the designated position for steel tapping from the converter.

[0047] In one embodiment of the present invention, the method of using a ladle car with added diversion sand includes the following steps:

[0048] S1. After the ladle is placed in the ladle seat 3, the feeding operator will drive the ladle car to the sand adding position. The feeding operator will observe the position of the ladle nozzle and move the support frame 4 horizontally perpendicular to the front and rear of the ladle car. The telescopic shaft 6 will extend horizontally along the front and rear of the ladle car and lower the combined sand feeder 9 into the ladle, so that the combined sand feeder 9 moves to the vicinity of the nozzle. At this time, the steel rope is in a taut state and the movable plate structure is in an open state. The feeding operator can observe the relative position of the combined sand feeder 9 bucket tube and the nozzle directly above the nozzle through the open space, fine adjust the support frame 4 and the telescopic shaft 6, and continue to lower the combined sand feeder 9 so that the combined sand feeder 9 is inserted into the nozzle.

[0049] S2. After the combined sand feeder 9 is inserted into the water inlet, the steel rope is further loosened. The movable plate structure slides down along the sliding track under its own gravity and closes with the fixed plate structure to form a complete funnel. The feeding operator puts the diversion sand into the combined sand feeder 9 and lets it stay for a while until the high temperature causes the diversion sand packaging bag to break, and the diversion sand flows into the water inlet.

[0050] S3. After the sand addition is completed, start to pull up the combined sand adder 9, reset the sand guiding device, and complete the sand guiding operation. The ladle can be moved to the designated position to start the converter tapping.

[0051] When the internal heat condition of the ladle is poor, turn on the searchlight 8. The remaining steps are the same as described above.

[0052] The present invention relates to a ladle car that includes a sand-adding mechanism mounted on the ladle car body. This mechanism comprises a combined sand dispenser and a sand dispenser moving device. The combined sand dispenser is funnel-shaped, consisting of a lower bucket tube and an upper combined bucket opening. The combined bucket opening includes three plate-like structures that can be combined to form a funnel-shaped opening. One plate-like structure is fixedly connected to the lower bucket tube, while the other two plate-like structures are movable. Sliding tracks are provided between the movable and fixed plate-like structures. The observation space provided by the combined sand dispenser effectively helps the sand-adding operator accurately locate the relative positions of the water inlet and the bucket tube, significantly reducing the difficulty of inserting the bucket tube into the water inlet and improving the accuracy of sand-addition to the ladle water inlet. This has significant practical implications for steel enterprises to improve production efficiency and reduce production costs.

[0053] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A ladle car that facilitates the addition of diversion sand, characterized in that, The system includes a steel ladle car body and a sand-injection mechanism installed on the steel ladle car body. The sand-injection mechanism includes a combined sand dispenser and a sand dispenser moving device. The combined sand dispenser is funnel-shaped and consists of a lower bucket tube and an upper combined bucket opening. The combined bucket opening includes three plate-like structures that can be combined into a funnel-shaped bucket opening. One plate-like structure is fixedly connected to the lower bucket tube, and the other two plate-like structures are movable plate-like structures. Sliding rails are provided between the movable plate-like structures and the fixed plate-like structures. The sand feeder moving device includes a support frame movably mounted on the body of the ladle car. A telescopic shaft drive motor is installed on the top of the support frame to drive the telescopic shaft which is horizontally arranged along the front and rear directions of the ladle car. A sand feeder lifting motor is installed on the telescopic shaft and is fixedly connected to a fixed plate structure and two movable plate structures respectively through three steel cables to realize the combined lifting of the sand feeder. When the steel rope lifting sand feeder keeps the steel rope taut, the two movable plate-like structures are in an open state. When the steel rope is relaxed, the two movable plate-like structures and the fixed plate-like structure close to form a complete funnel shape.

2. The ladle car for adding diversion sand according to claim 1, characterized in that, A limiter is installed inside the sliding track to prevent the movable sheet structure from separating from the fixed sheet structure.

3. The ladle car for adding diversion sand according to claim 1, characterized in that, The support frame is a rectangular frame with rollers and guide rails at the bottom, allowing it to move along the guide rails on the ladle car body.

4. The ladle car for adding diversion sand according to claim 3, characterized in that, The rollers are embedded in the guide rails. When the rollers move on the guide rails, the guide rails can provide support for the rollers to prevent the support frame from tipping over.

5. The ladle car for adding diversion sand according to claim 1, characterized in that, A searchlight is installed at the extendable front end of the telescopic shaft.

6. The ladle car for adding diversion sand according to claim 1, characterized in that, The ladle car also includes wheels located at the bottom of the ladle car body and ladle seats located on the ladle car body; the wheels, ladle car body, and ladle seats are consistent with the existing ladle car structure and are compatible with existing converter equipment.

7. A method for using a ladle car that facilitates the addition of diversion sand, characterized in that, The ladle car with the facilitator for adding diversion sand as described in any one of claims 1-6 includes the following steps: S1. Drive the ladle car to the sand-adding position. The feeding worker observes the position of the ladle nozzle and moves the sand-draining device to lower the combined sand feeder into the ladle. The combined sand feeder moves to the vicinity of the nozzle. At this time, the movable plate structure is in the open state. The feeding worker can observe the relative position of the combined sand feeder bucket tube and the nozzle directly above the nozzle through the open space. Fine-tune the sand-draining device and continue to lower the combined sand feeder so that it is inserted into the nozzle. S2. After the combined sand feeder is inserted into the water inlet, the movable plate structure slides down along the sliding track under its own gravity, and closes with the fixed plate structure to form a complete funnel. The feeding operator puts the diverted sand into the combined sand feeder. S3. After the sand is added, the sand-guiding device is reset, completing the sand-guiding operation. The ladle can then be moved to the designated position for steel tapping from the converter.

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