Cooling and impurity removing type intermediate frequency steel shell furnace

Abstract

The utility model relates to steel shell furnace technical field, specifically disclose a kind of cooling and impurity formula intermediate frequency steel shell furnace, including intermediate frequency steel shell furnace main body, the outside of intermediate frequency steel shell furnace main body is equipped with cooling collection box, the upper end of intermediate frequency steel shell furnace main body is installed with the arc cooperation cover, the inside of cooperation cover is equipped with the filter plate of cooperation by pivot;The utility model is cooperated by spiral conveyor and filter plate and linkage assembly, realize the automatic fishing of slag, filtration and conveying, without manual cleaning, reduce operating intensity, improve the continuous operation efficiency of intermediate frequency steel shell furnace, and because slag is directly conveyed to cooling collection box and cooled, avoid slag accumulation, shorten downtime cleaning time, convenient for operator to take out and handle directly, reduce the risk of scald, to solve the defect that traditional scheme cannot be conveniently handled by personnel to the slag fished out when using.

Description

Technical Field

[0001] This utility model relates to the field of steel shell furnace technology, and in particular to a cooling and impurity removal type medium-frequency steel shell furnace. Background Technology

[0002] A medium-frequency steel shell furnace is a device that holds the metal material to be heated and melted in a crucible, with a coil wound around the outside of the crucible. The heating and melting process utilizes the electromagnetic induction principle of the coil. During the heating process, the slag inside the medium-frequency steel shell furnace needs to be removed regularly.

[0003] The existing Chinese patent application number 202321958597.1 discloses a medium-frequency induction steel shell furnace, including a furnace body support, a furnace body top plate hinged to the top of the furnace body support, a tilting drive cylinder at the bottom of the furnace body top plate, a crucible inside the furnace body support, the crucible fixedly installed at the bottom of the furnace body top plate, an electromagnetic induction coil on the outside of the crucible, a magnetic yoke on the outside of the electromagnetic induction coil, one side of the furnace body top plate hinged to the top of the furnace body support, and a slag removal structure on the top of the other side, a liquid flow channel on the top of the furnace body top plate near the side of the furnace body top plate that is hinged to the furnace body support, the slag removal structure including a first bracket fixed to the top of the furnace body top plate, a connecting rod driven by a rotation drive mechanism on the first bracket, a slag removal rake driven by a rake drive mechanism rotatably mounted on the end of the connecting rod away from the first bracket, a tilting drive structure for driving the furnace body to tilt at the bottom of the furnace body support, and a rotatable smoke extraction structure at the top of the furnace body top plate.

[0004] While the above-mentioned technology achieves a certain degree of slag cleaning effect through the rake drive mechanism, the lack of slag collection and cooling measures makes the collected slag difficult for personnel to handle. Therefore, in order to solve the above-mentioned technical defects, we propose a cooling and impurity removal medium-frequency steel shell furnace. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a cooling and impurity removal type medium-frequency steel shell furnace.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cooling and impurity removal type medium-frequency steel shell furnace includes a medium-frequency steel shell furnace body. A cooling collection box is provided on the outside of the medium-frequency steel shell furnace body. An arc-shaped matching cover is installed on the upper end of the medium-frequency steel shell furnace body. A matching filter plate is provided on the inner side of the matching cover through a rotating shaft. A flow guide cover is provided on one side of the matching cover. A screw conveyor is connected to the end of the flow guide cover away from the matching cover. The discharge end of the screw conveyor faces the cooling collection box. A linkage component is provided between the end of the screw conveyor away from the discharge end and the adjacent rotating shaft.

[0008] Preferably, the linkage assembly includes a drive wheel, a driven wheel, and a transmission belt. The drive wheel is mounted on the shaft end of the screw conveyor, the driven wheel is mounted on the rotating shaft, and the drive wheel and the driven wheel are connected by a transmission belt.

[0009] Preferably, a stabilizing frame is installed on the upper side of the shroud, and the other end of the stabilizing frame is connected to two rotating shafts. The upper end of the shroud is provided with an open receiving groove corresponding to the rotating shaft.

[0010] Preferably, the side of the mating cover away from the guide cover is provided with a discharge port, and the outer side of the mating cover is provided with a matching discharge cover corresponding to the discharge port.

[0011] Preferably, a filter screen is provided on the inner side of the discharge port, and the inner wall of the filter screen is attached to the end of the filter plate.

[0012] Preferably, a pair of limiting frames are provided at the ends of the upper and lower surfaces of the filter plate that are far apart from each other, and the limiting frames are symmetrical about the axis of the rotating shaft.

[0013] Preferably, the cooling collection box is provided with a filter frame inside, and handles are provided on both sides of the upper end of the filter frame.

[0014] The cooling and impurity removal type medium-frequency steel shell furnace proposed in this utility model has the following advantages:

[0015] 1. This utility model achieves automatic slag retrieval, filtration, and conveying through the cooperation of a screw conveyor, filter plate, and linkage components. It eliminates the need for manual cleaning, reduces operational intensity, and improves the continuous operation efficiency of the medium-frequency steel shell furnace. Furthermore, since the slag is directly conveyed to the cooling collection box for cooling, slag accumulation is avoided, shortening downtime for cleaning. It also allows operators to easily remove and process the slag, reducing the risk of burns. This solves the problem of traditional solutions where it is difficult for personnel to handle the retrieved slag. Simultaneously, the filter plate and filter screen form a double filtration system: secondary filtration of residual fine particles ensures the purity of the discharged molten metal. This facilitates the collection of molten metal during discharge and meets the purity requirements of different processes. The overall structure is compact, and the external design of the cooling collection box does not occupy internal furnace space, making it suitable for upgrading existing medium-frequency steel shell furnaces.

[0016] 2. The linkage component in this utility model allows the screw conveyor to rotate via the drive wheel, which in turn drives the driven wheel. Since the driven wheel is connected to the shaft, its rotation drives the filter plate, which in turn scoops up the slag inside the guide hood. The reduction ratio of the linkage component can be adjusted according to specific usage requirements. The limiting frame prevents the slag scooped up by the filter plate from spilling outwards as it slides into the guide hood, ensuring the stability of slag transfer. The stabilizing frame provides stability during filter plate rotation. The discharge hood facilitates the collection of liquid discharged from the medium-frequency steel shell furnace, and the filter screen allows for convenient secondary filtration of the liquid, preventing residual slag from flowing out and improving the purity of the discharged liquid. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a cooling and impurity removal medium-frequency steel shell furnace proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of a filter frame for a cooling and impurity removal medium-frequency steel shell furnace proposed in this utility model.

[0019] Figure 3 A schematic diagram of the filter screen and matching cover of a cooling and impurity removal medium-frequency steel shell furnace proposed in this utility model;

[0020] Figure 4 A schematic diagram of the slag entering the guide hood of a cooling and impurity-removing medium-frequency steel shell furnace proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of a filter plate for a cooling and impurity removal medium-frequency steel shell furnace proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of slag removal in a cooling and impurity removal medium-frequency steel shell furnace proposed in this utility model.

[0023] In the diagram: 1. Main body of medium-frequency steel shell furnace; 2. Cooling collection box; 3. Matching cover; 4. Rotating shaft; 5. Filter plate; 6. Flow guide cover; 7. Screw conveyor; 8. Driving wheel; 9. Driven wheel; 10. Transmission belt; 11. Stabilizer; 12. Filter screen; 13. Limiting frame; 14. Filter frame; 15. Discharge cover. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figure 1-6 A cooling and impurity removal type medium-frequency steel shell furnace includes a medium-frequency steel shell furnace body 1, a cooling collection box 2 on the outside of the medium-frequency steel shell furnace body 1, an arc-shaped matching cover 3 installed on the upper end of the medium-frequency steel shell furnace body 1, a matching filter plate 5 on the inner side of the matching cover 3 through a rotating shaft 4, a guide cover 6 on one side of the matching cover 3, a screw conveyor 7 connected to the end of the guide cover 6 away from the matching cover 3, the discharge end of the screw conveyor 7 facing the cooling collection box 2, and a linkage component is provided between the end of the screw conveyor 7 away from the discharge end and the adjacent rotating shaft 4.

[0027] Example 2

[0028] Reference Figure 1-6 While all other parts are the same as in Example 1, the difference between this example and Example 1 is that:

[0029] The linkage assembly includes a drive wheel 8, a driven wheel 9, and a transmission belt 10. The drive wheel 8 is mounted on the shaft end of the screw conveyor 7, and the driven wheel 9 is mounted on the rotating shaft 4. The drive wheel 8 and the driven wheel 9 are connected by the transmission belt 10. The linkage assembly allows the screw conveyor 7 to rotate, which in turn drives the transmission belt 10 to rotate. The transmission belt 10 then drives the driven wheel 9 to rotate. Since the driven wheel 9 is connected to the rotating shaft 4, its rotation drives the filter plate 5 to rotate. This allows the filter plate 5 to scoop up the slag inside the mating cover 3. The reduction ratio of the linkage assembly can be adjusted according to specific usage requirements. A pair of limiting frames 13 are provided on the upper and lower surfaces of the filter plate 5 at opposite ends. The limiting frames 13 are symmetrical about the axis of the rotating shaft 4. The limiting frames 13 prevent the slag scooped up by the filter plate 5 from spilling onto the outside during its slide into the guide cover 6, thus ensuring the stability of the slag transfer.

[0030] A stabilizing frame 11 is installed on the upper side of the guide shroud 6. The other end of the stabilizing frame 11 is connected to two rotating shafts 4. The upper end of the mating shroud 3 is provided with a matching open receiving groove corresponding to the rotating shaft 4. The mating shroud 3 has a discharge port on the side away from the guide shroud 6. The outer side of the mating shroud 3 is provided with a matching discharge shroud 15 corresponding to the discharge port. A filter screen 12 is provided on the inner side of the discharge port. The inner wall of the filter screen 12 is in contact with the end of the filter plate 5. The setting of the stabilizing frame 11 makes the filter plate 5 more stable when rotating. The setting of the discharge shroud 15 facilitates the collection of the discharged liquid when the medium frequency steel shell furnace body 1 discharges material. At the same time, the liquid is conveniently filtered twice by the filter screen 12 to prevent residual slag from flowing out, thereby improving the purity of the discharged liquid. The interior of the cooling collection box 2 is provided with a filter frame 14. The upper two sides of the filter frame 14 are provided with handles. The setting of the filter frame 14 facilitates the quick removal of the cooled slag by personnel.

[0031] Operating principle and advantages: In use, the matching cover 3 is installed on the upper part of the medium-frequency steel shell furnace body 1, so that the liquid level of the furnace liquid inside the steel shell furnace is located in the lower part of the matching cover 3. Therefore, when the filter plate 5 rotates, the end of the filter plate 5 filters the furnace liquid inside the matching cover 3, so that the slag floating on the surface of the furnace liquid is picked up by the filter plate 5, while the furnace liquid on the slag surface flows back into the matching cover 3 through the filter holes of the filter plate 5. When the filter plate 5 is rotated to an inclined state, the slag slides down the surface of the filter plate 5 into the guide cover 6, and finally passes through the screw conveyor 7. The slag is conveyed to the cooling collection box 2 for cooling. This allows the slag to be automatically retrieved, filtered, and conveyed through the cooperation of the screw conveyor 7, filter plate 5, and linkage components. This eliminates the need for manual cleaning, reduces operational intensity, and improves the continuous operation efficiency of the medium-frequency steel shell furnace. Furthermore, since the slag is directly conveyed to the cooling collection box 2 for cooling, slag accumulation is avoided, downtime for cleaning is shortened, and it is easy for operators to directly remove and handle the slag, reducing the risk of burns. This solves the problem that traditional solutions cannot easily handle the retrieved slag.

[0032] Meanwhile, the filter plate 5 and the filter screen 12 form a dual filtration: secondary filtration of residual fine particles to ensure the purity of the discharged molten metal. This facilitates the collection of molten metal during discharge and meets the purity requirements of different processes. The overall structure is compact, and the external design of the cooling collection box 2 does not occupy the internal space of the furnace body, making it suitable for upgrading and retrofitting existing medium-frequency steel shell furnaces.

[0033] It should be further explained that coolant can be installed in the cooling collection box 2. The linkage component allows the screw conveyor 7 to rotate, which in turn drives the drive belt 10 via the drive wheel 8. The drive belt 10 then drives the driven wheel 9 to rotate. Since the driven wheel 9 is connected to the rotating shaft 4, its rotation drives the filter plate 5 to rotate via the rotating shaft 4. This allows the filter plate 5 to collect the slag inside the mating cover 3. The reduction ratio of the linkage component can be adjusted according to specific usage requirements during this process. The limit frame 13 is also included. This design ensures that the slag collected by the filter plate 5 is less likely to spill onto the outside during its slide into the guide cover 6, thus guaranteeing the stability of slag transfer. The stabilizing frame 11 makes the filter plate 5 more stable when rotating, while the discharge cover 15 facilitates the collection of discharged liquid when the medium-frequency steel shell furnace body 1 discharges material. At the same time, the liquid is easily filtered a second time through the filter screen 12 to prevent residual slag from flowing out, thereby improving the purity of the discharged liquid. The filter frame 14 facilitates the quick removal of cooled slag by personnel.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cooling and impurity removal type medium-frequency steel shell furnace, comprising a medium-frequency steel shell furnace body (1), characterized in that, The main body (1) of the medium frequency steel shell furnace is provided with a cooling collection box (2) on the outside. The upper end of the main body (1) of the medium frequency steel shell furnace is provided with an arc-shaped matching cover (3). The inner side of the matching cover (3) is provided with a matching filter plate (5) through a rotating shaft (4). A guide cover (6) is provided on one side of the matching cover (3). A screw conveyor (7) is connected to the end of the guide cover (6) away from the matching cover (3). The discharge end of the screw conveyor (7) faces the cooling collection box (2). The end of the screw conveyor (7) away from the discharge end is provided with a linkage component together with the adjacent rotating shaft (4).

2. The cooling and impurity removal type medium-frequency steel shell furnace according to claim 1, characterized in that, The linkage assembly includes a drive wheel (8), a driven wheel (9), and a transmission belt (10). The drive wheel (8) is installed on the shaft end of the screw conveyor (7), and the driven wheel (9) is installed on the rotating shaft (4). The drive wheel (8) and the driven wheel (9) are connected by the transmission belt (10).

3. The cooling and impurity removal type medium-frequency steel shell furnace according to claim 1, characterized in that, The upper side of the shroud (6) is equipped with a stabilizing frame (11), and the other end of the stabilizing frame (11) is connected to two rotating shafts (4). The upper end of the shroud (3) is provided with a matching open receiving groove corresponding to the rotating shaft (4).

4. A cooling and impurity-removing medium-frequency steel shell furnace according to claim 1, characterized in that, The matching cover (3) has a discharge port on the side away from the guide cover (6), and a matching discharge cover (15) is provided on the outer side of the matching cover (3) corresponding to the discharge port.

5. A cooling and impurity-removing medium-frequency steel shell furnace according to claim 4, characterized in that, The inner side of the discharge port is provided with a filter screen (12), and the inner wall of the filter screen (12) is attached to the end of the filter plate (5).

6. A cooling and impurity-removing medium-frequency steel shell furnace according to claim 1, characterized in that, The filter plate (5) has a pair of limiting frames (13) on its upper and lower surfaces that are far apart from each other. The limiting frames (13) are symmetrical about the axis of the rotating shaft (4).

7. A cooling and impurity-removing medium-frequency steel shell furnace according to claim 1, characterized in that, The cooling collection box (2) is equipped with a filter frame (14) inside, and handles are provided on both sides of the upper end of the filter frame (14).

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