Safety protection device for non-ferrous metallurgy furnace mouth of converter

Abstract

The utility model relates to a converter non-ferrous metallurgy furnace mouth safety protection device, which relates to the technical field of smelting, and comprises a converter, a protective cover is in bolted connection with a furnace mouth of the converter, a retainer plate is fixedly connected inside the protective cover, a blanking groove is arranged on the retainer plate, and a rotating column is rotationally connected with the middle end of the retainer plate. The rotating column is movably connected with at least three push plates, the push plates are slidably connected in the protective cover, the top of the protective cover is in bolted connection with a cover plate, the cover plate is provided with a feeding groove, and the cover plate is provided with an explosion-proof motor used for driving the rotating column to rotate; the outer side of the protective cover is fixedly connected with a mounting edge; the mounting edge is connected with a furnace mouth of the converter through bolts; the upper surface of the cover plate is fixedly connected with a hopper, the hopper communicates with the feeding groove, and a nonferrous metal material feeding interval is defined between the protective cover and the material supporting plate; the anti-splashing feeding device solves the technical problems that in the prior art, during anti-splashing feeding of the converter, the feeding period is long, and the smelting efficiency is affected.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, specifically to a safety protection device for the mouth of a converter non-ferrous metallurgical furnace. Background Technology

[0002] A converter is a type of metallurgical furnace. The furnace body rotates and is used for blowing steel or using a blowing cannon. The converter body is made of steel plates and is generally lined with refractory materials. Heating during blowing is achieved through the heat of chemical reaction, requiring no external heat source. It is the most important steelmaking equipment and can also be used for copper and nickel smelting. It is quite common in the metallurgical field. Non-ferrous metals, also known as non-ferrous metals, require converters in their smelting processes.

[0003] For example, patent publication number CN219861429U discloses a protective device for the furnace mouth of a converter metallurgical furnace, including a furnace body. A furnace mouth is fixedly connected to the top of the furnace body, and a box is fixedly connected to the top of the furnace body. Two upper baffles and two lower baffles are slidably fitted inside the furnace mouth. This utility model, through the setting of the upper and lower baffle components, drives the upper and lower baffles to move in opposite directions. When adding material, the upper baffles can be opened, and at the same time, the two lower baffles seal the furnace mouth, allowing personnel to add material into the furnace mouth above the lower baffles, preventing direct addition of molten metal that could splash out and burn personnel. Then, the two lower baffles open, allowing the material to fall into the furnace body for heating and reaction. Simultaneously, the two upper baffles close, shielding the material and reducing the waste caused by splashing molten metal.

[0004] In the aforementioned patent, the inventor believes that although the patent solves the problem of molten metal splashing in the converter, the method of material transition to prevent splashing during feeding is intermittent and has a long feeding cycle, which affects smelting efficiency. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a safety protection device for the non-ferrous metallurgical converter furnace mouth, so as to solve the technical problem that the charging cycle is long and affects the smelting efficiency when the converter is anti-splashing charging in the prior art.

[0006] This utility model is achieved through the following technical solution:

[0007] A safety protection device for the furnace mouth of a converter in non-ferrous metallurgical industry includes a converter. A protective cover is bolted to the furnace mouth of the converter. A material support plate is fixedly connected inside the protective cover. A material feeding chute is opened on the material support plate. A rotating column is rotatably connected to the middle end of the material support plate. At least three push plates are movably connected to the rotating column. The push plates are slidably connected inside the protective cover. A cover plate is bolted to the top of the protective cover. A material feeding chute is provided on the cover plate. An explosion-proof motor for driving the rotating column to rotate is provided on the cover plate.

[0008] Furthermore, an mounting edge is fixedly connected to the outer side of the protective cover, and the mounting edge is connected to the furnace opening of the converter by bolts.

[0009] Furthermore, a hopper is fixedly connected to the upper surface of the cover plate, the hopper is connected to the feeding trough, and the protective cover and the material support plate form a non-ferrous metal material feeding area. The feeding trough and the unloading trough are staggered.

[0010] Furthermore, a pressure-reducing hole is provided on the cover plate, and a baffle is fixedly connected to the upper surface of the cover plate, with the baffle located outside the pressure-reducing hole.

[0011] Furthermore, one end of the push plate is fixedly connected to an insert plate, and the rotating column is provided with a slot for inserting the insert plate.

[0012] Furthermore, a scraper is fixedly connected to one side of the pusher plate, and the scraper is slidably connected to the material support plate.

[0013] Furthermore, the explosion-proof motor is fixedly connected to the upper surface of the cover plate, and a positioning transmission component is provided at the output end of the explosion-proof motor. The positioning transmission component includes a rotating plate, which is fixedly connected to the output end of the explosion-proof motor and is located below the cover plate. A spline shaft and a positioning post are fixedly connected to the bottom of the rotating plate. A keyway for inserting the spline shaft is provided on the rotating post, and a positioning groove for inserting the positioning post is provided on the push plate.

[0014] Furthermore, a clearance groove is provided at the corner of one end of the push plate. When the positioning post is inserted into the positioning groove, the rotating plate is located in the clearance groove.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This converter non-ferrous metallurgical furnace mouth safety protection device, by installing a protective cover at the furnace mouth, has a material support plate inside that supports the material feeding. The staggered placement of the feeding and unloading troughs facilitates feeding while reducing the feeding distance at the converter mouth. Smelting materials are fed into the feeding zone enclosed by the protective cover and the material support plate. The rotating column drives a pusher plate to rotate, continuously pushing the smelting materials within the feeding zone towards the unloading trough. This achieves the effect of preventing splashing during converter molten metal smelting and also improves the continuity of smelting material feeding, thereby increasing the smelting progress.

[0017] 2. The safety protection device for the non-ferrous metallurgical furnace mouth of this converter uses a positioning transmission component between the explosion-proof motor and the rotating column for transmission. Combined with the connection of the cover plate to the protective cover by bolts, it can improve the convenience of disassembling and assembling the push plate while ensuring effective drive of the push plate, and make maintenance more convenient.

[0018] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the safety protection device for the converter non-ferrous metallurgical furnace mouth of this utility model.

[0020] Figure 2 This utility model Figure 1 A split diagram;

[0021] Figure 3 This is a schematic diagram of the structure of the protective cover of this utility model;

[0022] Figure 4 This is a schematic diagram of the push plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning transmission component of this utility model.

[0024] In the diagram: 1. Converter; 2. Protective cover; 3. Material support plate; 4. Feed chute; 5. Rotating column; 6. Push plate; 7. Cover plate; 8. Feeding chute; 9. Explosion-proof motor; 10. Mounting edge; 11. Insert plate; 12. Scraper; 13. Clearance groove; 14. Positioning transmission component; 141. Rotating plate; 142. Splined shaft; 143. Positioning column; 15. Hopper; 16. Pressure reducing hole; 17. Baffle. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0030] Please see Figure 1-5 This utility model provides a technical solution: a safety protection device for the furnace mouth of a converter for non-ferrous metallurgy, including a converter 1, the converter 1 is used for smelting non-ferrous metals, a protective cover 2 is bolted to the furnace mouth of the converter 1, a material support plate 3 is fixedly connected inside the protective cover 2, and a material feeding trough 4 is opened on the material support plate 3.

[0031] The protective cover 2 can extend the height of the converter 1 opening, the material support plate 3 can be used to support the feeding of non-ferrous metal materials, and the unloading trough 4 can be used to feed the non-ferrous metal materials supported on the material support plate 3 into the converter 1.

[0032] In this embodiment: the outer side of the protective cover 2 is fixedly connected to the mounting edge 10, and the mounting edge 10 is connected to the furnace mouth of the converter 1 by bolts.

[0033] The installation along 10 allows for easy bolting of the protective cover 2 and its upper structure to the furnace mouth of the converter 1.

[0034] In this embodiment: a rotating column 5 is rotatably connected to the middle of the material support plate 3, and at least three push plates 6 are movably connected to the rotating column 5. The push plates 6 are slidably connected inside the protective cover 2.

[0035] By controlling the rotation of the rotating column 5, the push plate 6 on it can rotate around the axis of the rotating column 5. Since one end of the push plate 6 slides on the inner wall of the protective cover 2, the connection gap can be reduced, ensuring the thoroughness of the non-ferrous metal material push. In this way, the non-ferrous metal material on the material support plate 3 can be conveniently fed into the converter 1 through the position of the feeding chute 4.

[0036] In this embodiment: one end of the push plate 6 is fixedly connected to the insert plate 11, and the rotating column 5 is provided with a slot for inserting the insert plate 11.

[0037] The slot serves as a positioning point for the insertion plate 11. The insertion plate 11 has a T-shaped structure, and the lowest point of the slot is higher than the height of the support plate 3. This prevents the insertion plate 11 from being over-inserted, thus leaving a certain gap between the insertion plate 11 and the support plate 3.

[0038] In this embodiment, a scraper 12 is fixedly connected to one side of the push plate 6, and the scraper 12 is slidably connected to the material support plate 3.

[0039] By setting a scraper 12 on the push plate 6 to fill the gap between the insert plate 11 and the material support plate 3, the cooperation between the push plate 6 and the scraper 12 can effectively scrape away the material on the material support plate 3.

[0040] In this embodiment: the top of the protective cover 2 is bolted to a cover plate 7, and a feeding trough 8 is provided on the cover plate 7.

[0041] Since the protective cover 2 has a double-opening structure, the cover plate 7 can be used to seal one end of the protective cover 2, and the feeding trough 8 can be used to conveniently feed non-ferrous metal materials onto the material support plate 3 inside the protective cover 2.

[0042] In this embodiment: a hopper 15 is fixedly connected to the upper surface of the cover plate 7. The hopper 15 is connected to the feeding trough 8. The protective cover 2 and the material support plate 3 form a non-ferrous metal material feeding area. The feeding trough 8 and the unloading trough 4 are staggered.

[0043] The hopper 15 is designed to collect materials at the feeding trough 8, thus achieving centralized feeding. The non-ferrous metal material feeding area can store non-ferrous metal materials for smelting in converter 1. The feeding trough 8 and the unloading trough 4 are staggered, that is, the feeding trough 8 is set on one side and the unloading trough 4 is set on the other side. Material is fed from a position away from the unloading trough 4. The cover plate 7 intercepts the material above the unloading trough 4. Thus, manual feeding at the feeding trough 8 can prevent molten metal from splashing.

[0044] In this embodiment: a pressure relief hole 16 is provided on the cover plate 7, and a baffle 17 is fixedly connected to the upper surface of the cover plate 7. The baffle 17 is located outside the pressure relief hole 16.

[0045] The pressure relief hole 16 can provide pressure relief for converter 1. The baffle 17 can be set on the cover plate 7 to block the pressure relief hole 16. Since the baffle 17 is hollow, it can prevent the heat source at the pressure relief hole 16 from getting close to the feeding trough 8 without affecting the pressure relief effect of the pressure relief hole 16.

[0046] It is worth noting that the protective cover 2, cover plate 7 and baffle 17 in this application can be made of heat-insulating materials.

[0047] In this embodiment: the cover plate 7 is provided with an explosion-proof motor 9 for driving the rotating column 5 to rotate, and the explosion-proof motor 9 is fixedly connected to the upper surface of the cover plate 7.

[0048] The explosion-proof motor 9 can be a YBX3 series rotary motor, which makes it safer to use in high-temperature environments.

[0049] In this embodiment: the output end of the explosion-proof motor 9 is provided with a positioning transmission component 14, which includes a rotating plate 141. The rotating plate 141 is fixedly connected to the output end of the explosion-proof motor 9 and is located below the cover plate 7. The bottom of the rotating plate 141 is fixedly connected with a spline shaft 142 and a positioning post 143. The rotating post 5 is provided with a keyway for the spline shaft 142 to be inserted, and the push plate 6 is provided with a positioning groove for the positioning post 143 to be inserted.

[0050] In use, by bolting the cover plate 7 to the protective cover 2, the spline shaft 142 needs to be inserted into the keyway. The synchronous insertion of the spline shaft 142 allows the positioning pin 143 to be inserted into the positioning slot. In this way, when the rotating plate 141 can drive the rotating column 5 to rotate via the spline shaft 142, the positioning pin 143 can further lock the push plate 6 because the push plate 6 is inserted on the rotating column 5. Thus, the push plate 6 rotating on the rotating column 5 can be more stable. As a result, the rotating column 5 can be driven to rotate by the explosion-proof motor 9, and the push plate 6 on it can continuously push the material in the non-ferrous metal material feeding area to the position of the lower feeding trough 4.

[0051] It is worth noting that since the push plate 6 is in a movable connection state, by removing the cover plate 7, the connection between the spline shaft 142 and the rotating column 5, as well as the connection between the positioning column 143 and the push plate 6, can be disconnected, thus satisfying the convenience of maintenance and disassembly of the push plate 6.

[0052] In this embodiment, a clearance groove 13 is provided at the corner of one end of the push plate 6. When the positioning post 143 is inserted into the positioning groove, the rotating plate 141 is located in the clearance groove 13.

[0053] The clearance groove 13 allows the rotating plate 141 to effectively engage with the push plate 6, thus reducing the distance between the cover plate 7 and the push plate 6.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A safety protection device for the mouth of a converter in non-ferrous metallurgical furnace, comprising a converter (1), characterized in that: The furnace mouth of the converter (1) is bolted to a protective cover (2). A material support plate (3) is fixedly connected inside the protective cover (2). A material feeding groove (4) is opened on the material support plate (3). A rotating column (5) is rotatably connected to the middle end of the material support plate (3). At least three push plates (6) are movably connected to the rotating column (5). The push plates (6) are slidably connected inside the protective cover (2). A cover plate (7) is bolted to the top of the protective cover (2). A feeding groove (8) is provided on the cover plate (7). An explosion-proof motor (9) for driving the rotating column (5) to rotate is provided on the cover plate (7).

2. The safety protection device for the converter non-ferrous metallurgical furnace mouth according to claim 1, characterized in that: An mounting edge (10) is fixedly connected to the outside of the protective cover (2), and the mounting edge (10) is connected to the furnace opening of the converter (1) by bolts.

3. The safety protection device for the converter non-ferrous metallurgical furnace mouth according to claim 1, characterized in that: A hopper (15) is fixedly connected to the upper surface of the cover plate (7). The hopper (15) is connected to the feeding trough (8). The protective cover (2) and the material support plate (3) form a non-ferrous metal material feeding area. The feeding trough (8) and the unloading trough (4) are staggered.

4. The safety protection device for the converter non-ferrous metallurgical furnace mouth according to claim 1, characterized in that: The cover plate (7) has a pressure relief hole (16), and a baffle (17) is fixedly connected to the upper surface of the cover plate (7). The baffle (17) is located outside the pressure relief hole (16).

5. The safety protection device for the converter non-ferrous metallurgical furnace mouth according to claim 1, characterized in that: One end of the push plate (6) is fixedly connected to the insert plate (11), and the rotating column (5) is provided with a slot for inserting the insert plate (11).

6. The safety protection device for the converter non-ferrous metallurgical furnace mouth according to claim 1, characterized in that: A scraper (12) is fixedly connected to one side of the push plate (6), and the scraper (12) is slidably connected to the material support plate (3).

7. The safety protection device for the converter non-ferrous metallurgical furnace mouth according to claim 1, characterized in that: The explosion-proof motor (9) is fixedly connected to the upper surface of the cover plate (7). The output end of the explosion-proof motor (9) is provided with a positioning transmission component (14). The positioning transmission component (14) includes a rotating plate (141). The rotating plate (141) is fixedly connected to the output end of the explosion-proof motor (9) and is located below the cover plate (7). The bottom of the rotating plate (141) is fixedly connected with a spline shaft (142) and a positioning column (143). The rotating column (5) is provided with a keyway for the spline shaft (142) to be inserted. The push plate (6) is provided with a positioning groove for the positioning column (143) to be inserted.

8. The safety protection device for the converter non-ferrous metallurgical furnace mouth according to claim 7, characterized in that: A clearance groove (13) is provided at the corner of one end of the push plate (6). When the positioning column (143) is inserted into the positioning groove, the rotating plate (141) is located in the clearance groove (13).

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