A device for extracting a sample of converter steelmaking slag

Abstract

The utility model discloses a converter steelmaking slag sample extraction device relates to slag sample extraction technical field, and its technical scheme is: including main rod and fixedly sleeved base block in the outside of main rod bottom end, and the base block bottom is equipped with two symmetrical distribution's grab bucket, and the filter screen is fixedly embedded on two grab buckets, and the recess is seted up in the inside of main rod top, the base block is embedded with two pivot no.

Description

Technical Field

[0001] This utility model relates to the field of slag sample extraction technology, specifically to a converter steelmaking slag sample extraction device. Background Technology

[0002] Slag extraction in converter steelmaking focuses on liquid slag on the surface of molten steel. It is a key operation for real-time control of smelting quality. During the middle to late stages of blowing, when the oxidation reaction in the furnace tends to stabilize, the slag is fully formed and has a uniform composition, a long-handled sampling spoon is inserted into the converter mouth to scoop up the active slag floating on the surface of the molten steel. By analyzing its components such as calcium oxide, silicon dioxide, and phosphorus pentoxide, the slag basicity and dephosphorization effect are determined, and the amount of slag-forming agent added is adjusted in a timely manner. Currently, steel slag is extracted by using a long-handled sampling spoon. During the scooping process, a small amount of molten steel is scooped out along with the slag sample. Since the temperature of the molten steel is much higher than that of the slag sample, and the molten steel is also prone to spilling out of the spoon when it is removed from the furnace, this increases the probability of the operator being burned, resulting in a high risk factor. Therefore, it is necessary to invent a converter steelmaking slag sample extraction device. Summary of the Invention

[0003] Therefore, this utility model provides a converter steelmaking slag sample extraction device to solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a converter steelmaking slag sample extraction device, comprising a main rod and a base block fixedly sleeved on the outside of the bottom end of the main rod, wherein two symmetrically distributed grab buckets are provided at the bottom of the base block, and filter screens are fixedly embedded on both grab buckets, and a groove is provided inside the top end of the main rod; The base block is embedded with two rotating shafts, and each of the two rotating shafts is fixedly fitted with a connecting frame. The two connecting frames are respectively connected to the two grabs through movable hinge seats. A control component is provided between the two grabs to control the opening and closing of the two grabs.

[0005] Preferably, a handle is fixedly connected to the outer side of the top end of the main rod.

[0006] Preferably, the control component includes a connecting rod disposed between two grabs, and two protruding plates one and two protruding plates two are movably sleeved on the outside of the connecting rod, with the two protruding plates two located outside the two protruding plates one.

[0007] Preferably, the two protruding plates are fixedly connected to the front and rear sides of one of the grabs, and the two protruding plates are fixedly connected to the front and rear sides of the other grab. The connecting rod has protrusions integrally formed on both its front and rear sides, and the two protrusions are in movable contact with the outer sides of the two protruding plates.

[0008] Preferably, a connecting plate is fixedly connected to the top of the connecting rod, and a pull rod is fixedly connected to the top of the connecting plate. The pull rod passes through the main rod and the groove, and the pull rod slides in contact with the main rod. A pull ring is fixedly connected to the top of the pull rod, and the pull ring is located inside the grip.

[0009] Preferably, a buffer ring is fixedly connected to the top of the pull rod, and a circular plate is provided on the top of the buffer ring in contact with it. The circular plate is fixedly sleeved on the outside of the pull rod, and a spring is sleeved on the outside of the pull rod, with both ends of the spring fixedly connected to the circular plate and the bottom of the groove, respectively.

[0010] Preferably, the buffer ring is made of rubber material.

[0011] Preferably, the rotating shaft is connected to the base block via a bearing.

[0012] The beneficial effects of this utility model are: By setting up a main rod, base block, two rotating shafts, two connecting frames, two grabs, and control components, the two grabs can be opened and closed via the control components during use, thus grabbing slag samples from the surface of molten steel. In addition, filters are installed on both grabs, so the molten steel will not remain in the grabs during grabbing and will flow out through the filters. This avoids molten steel being scooped out along with the slag sample during sampling, and also reduces the probability of operators being burned. It has a high safety factor and meets the requirements of safe production. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0015] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 Provided by this utility model Figure 1 Enlarged view of point A in the image; Figure 3The main sectional view provided for this utility model; Figure 4 Provided by this utility model Figure 3 Enlarged view of point B in the image; Figure 5 Exploded three-dimensional view of components such as the grab bucket, connecting frame, and filter screen provided by this utility model; Figure 6 This is a schematic diagram of the two grabs combined together according to the present invention.

[0016] In the diagram: 1. Main rod; 2. Base block; 3. Grab bucket; 4. Filter screen; 5. Groove; 6. Rotating shaft one; 7. Connecting frame; 8. Handle; 9. Connecting rod; 10. Protruding plate one; 11. Protruding plate two; 12. Protrusion; 13. Connecting plate; 14. Pull rod; 15. Pull ring; 16. Buffer ring; 17. Circular plate; 18. Spring. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] See attached document Figure 1 - Appendix Figure 6 The present invention provides a converter steelmaking slag sample extraction device, including a main rod 1 and a base block 2 fixedly sleeved on the outside of the bottom end of the main rod 1. The base block 2 has two symmetrically distributed grab buckets 3 at the bottom, and a filter screen 4 is fixedly embedded on each of the two grab buckets 3. A groove 5 is opened inside the top end of the main rod 1. Two rotating shafts 6 are embedded in the base block 2. A connecting frame 7 is fixedly sleeved on the outside of each of the two rotating shafts 6. The two connecting frames 7 are respectively connected to the two grab buckets 3 through movable hinge seats. A control component is provided between the two grab buckets 3 to control the opening and closing of the two grab buckets 3. A handle 8 is fixedly connected to the top of the main rod 1; In use, the operator holds the lever 8 and inserts the device into the smelting furnace. Since the connecting frame 7 and the base block 2 are connected by a rotating shaft 6, they can rotate relative to each other. The connecting frame 7 and the grab bucket 3 are connected by a movable hinge, and they can also rotate relative to each other. Thus, when extracting slag, the two grab buckets 3 can be brought together by the control components. Figure 6 As shown, this allows for the grabbing of slag samples from the surface of molten steel. After grabbing, the device is removed from the furnace. Filter screens 4 are installed on both grab buckets 3. During grabbing, the molten steel will not remain in the grab buckets 3 but will flow out through the filter screens 4. This prevents the molten steel from being scooped out along with the slag sample during sampling, and also reduces the probability of the operator being burned. It has a high safety factor and meets the requirements for safe production. When this device is removed from the furnace, the two grab buckets 3 can be opened by the control components, and then the slag sample in the grab buckets 3 can fall out, thus realizing the extraction of the slag sample; Specifically, the control components include a connecting rod 9, which is located between two grabs 3. Two protruding plates 10 and two protruding plates 11 are movably sleeved on the outside of the connecting rod 9. The two protruding plates 11 are located outside the two protruding plates 10. The two protruding plates 10 are fixedly connected to the front and rear sides of one of the grabs 3, and the two protruding plates 11 are fixedly connected to the front and rear sides of the other grab 3. The connecting rod 9 has protrusions 12 integrally formed on both the front and rear sides, and the two protrusions 12 are in movable contact with the outer sides of the two protruding plates 11. A connecting plate 13 is fixedly connected to the top of the connecting rod 9, and a pull rod 14 is fixedly connected to the top of the connecting plate 13. The pull rod 14 passes through the main rod 1 and the groove 5, and the pull rod 14 is in sliding contact with the main rod 1. A pull ring 15 is fixedly connected to the top of the pull rod 14, and the pull ring 15 is located inside the grip 8. It should be noted that when the operator holds the lever 8, he can also hold the pull ring 15 to move the lever 14 upward. Moving the lever 14 upward will move the connecting plate 13 and the connecting rod 9 upward. Since the two protruding plates 10 and the two protruding rods 2 are movably sleeved on the outside of the connecting rod 9, the two grabs 3 can be brought together when the connecting rod 9 moves upward, thus realizing the grabbing of the slag sample. In order to achieve the automatic downward movement of pull ring 15, pull rod 14, connecting plate 13 and connecting rod 9 when the pull ring 15 is released, and the two grab buckets 3 automatically open, in this embodiment, a buffer ring 16 is fixedly connected to the top of the pull rod 14, and a circular plate 17 is provided on the top of the buffer ring 16 in contact with it. The circular plate 17 is fixedly sleeved on the outside of the pull rod 14, and a spring 18 is sleeved on the outside of the pull rod 14. The two ends of the spring 18 are fixedly connected to the circular plate 17 and the bottom of the groove 5, respectively. The buffer ring 16 is made of rubber material. When in use, pulling the ring 15 upwards can also move the circular plate 17 upwards, thereby pulling the spring 18 upwards. After releasing the ring 15, the spring 18 rebounds, causing the ring 15, the pull rod 14, the connecting plate 13, and the connecting rod 9 to move downwards automatically, and the two grab buckets 3 to open automatically, thus ensuring that the slag sample in the grab bucket 3 falls out. When the spring 18 rebounds, it will cause the circular plate 17 to contact and impact the buffer ring 16. In addition, the buffer ring 16 is made of rubber material. When they contact and impact, the circular plate 17, the pull ring 15, the pull rod 14, the connecting plate 13 and the connecting rod 9 will vibrate. This will cause the two grab buckets 3 to vibrate, thus ensuring that the steel slag falls smoothly. In this embodiment, the rotating shaft 6 is connected to the base block 2 via a bearing; It should be noted that using bearings for connection can reduce wear; In addition, when the first protrusion 10 and the second protrusion 11 are fitted outside the connecting rod 9, they will squeeze the front and rear ends of the connecting rod 9 to produce protrusions 12. This can prevent the first protrusion 10, the second protrusion 11 and the grab bucket 3 from falling off the connecting rod 9 during use. Moreover, all components in this application are made of heat-resistant steel. In addition, when using this device, the operator needs to wear heat-resistant gloves. This way, the operator will not be burned when grabbing, and the device will not be melted by molten steel.

[0019] The above are merely preferred embodiments of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A converter steelmaking slag sample extraction device, characterized in that, Includes a main rod (1) and a base block (2) fixedly sleeved on the outside of the bottom end of the main rod (1). The base block (2) has two symmetrically distributed grabs (3) at the bottom. Each grab (3) has a filter screen (4) fixedly embedded on it. The top end of the main rod (1) has a groove (5). Two rotating shafts (6) are embedded on the base block (2). A connecting frame (7) is fixedly sleeved on the outside of each of the two rotating shafts (6). The two connecting frames (7) are respectively connected to the two grabs (3) through movable hinge seats. A control component is provided between the two grabs (3) to control the opening and closing of the two grabs (3).

2. The converter steelmaking slag sample extraction device according to claim 1, characterized in that: The top of the main rod (1) is fixedly connected to a handle (8).

3. The converter steelmaking slag sample extraction device according to claim 1, characterized in that: The control component includes a connecting rod (9), which is disposed between two grabs (3). Two protruding plates (10) and two protruding plates (11) are movably sleeved on the outside of the connecting rod (9), and the two protruding plates (11) are located outside the two protruding plates (10).

4. The converter steelmaking slag sample extraction device according to claim 3, characterized in that: The two protruding plates (10) are fixedly connected to the front and rear sides of one of the grabs (3), and the two protruding plates (11) are fixedly connected to the front and rear sides of the other grab (3). The connecting rod (9) has protrusions (12) integrally formed on both the front and rear sides, and the two protrusions (12) are in active contact with the outer sides of the two protruding plates (11).

5. The converter steelmaking slag sample extraction device according to claim 4, characterized in that: The connecting rod (9) is fixedly connected to the top of the connecting plate (13), and the connecting plate (13) is fixedly connected to the top of the pull rod (14). The pull rod (14) passes through the main rod (1) and the groove (5), and the pull rod (14) slides in contact with the main rod (1). The top of the pull rod (14) is fixedly connected to the pull ring (15), and the pull ring (15) is located inside the grip (8).

6. The converter steelmaking slag sample extraction device according to claim 5, characterized in that: The top of the pull rod (14) is fixedly connected to a buffer ring (16), and the top of the buffer ring (16) is provided with a circular plate (17) in contact with it. The circular plate (17) is fixedly sleeved on the outside of the pull rod (14), and a spring (18) is sleeved on the outside of the pull rod (14). The two ends of the spring (18) are fixedly connected to the circular plate (17) and the bottom of the groove (5) respectively.

7. The converter steelmaking slag sample extraction device according to claim 6, characterized in that: The buffer ring (16) is made of rubber material.

8. The converter steelmaking slag sample extraction device according to claim 1, characterized in that: The rotating shaft (6) is connected to the base block (2) via a bearing.

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