Vacuum feeding device for introducing VOD (Vacuum Oxygen Decarburization) furnace

Abstract

The utility model provides a vacuum feeding device for introducing a VOD (Vacuum Oxygen Decarburization) furnace, which relates to the field of metallurgical equipment and comprises a vacuum box, one side of the top wall of the vacuum box is fixedly connected with a first working box, one side in the first working box is provided with a first motor, the output end of the first motor is provided with a half gear, and one side of the surface wall of the half gear is meshed with a gear. A first rotating shaft is installed on one side of the inner wall of a gear, two bent rods are installed on the peripheral side of the surface wall of the first rotating shaft, a second rotating shaft is installed on one sides of the surface walls of the two bent rods, and a sealing door is installed on one side of the surface wall of the second rotating shaft. The sealing door is driven to be closed under the action of the output end of the first motor, then the interior of the vacuum box is vacuumized under the action of the vacuum pump, then gas and impurities in molten steel are removed in a vacuumizing mode, and the working efficiency of VOD furnace machining is improved.

Description

Technical Field

[0001] The utility model relates to the field of metallurgical equipment, in particular to a vacuum charging device for an introduced VOD furnace. Background Art

[0002] VOD vacuum refining equipment is one of the most widely used off-furnace refining equipment in the world. It has many advantages such as simple equipment, low investment, low cost, multiple refined steel types, high quality, and easy operation. Therefore, it has become an essential refining method for special steel plants. VOD ladle refining furnace has multiple functions such as vacuum degassing, oxygen blowing decarburization, vacuum charging, argon blowing stirring, non-vacuum temperature measurement sampling, wire feeding, etc. It can refine bearing steel, alloy structural steel, spring steel, high-quality carbon steel and ultra-low carbon stainless steel. VOD method is an off-furnace refining technology that produces high-chromium stainless steel by oxygen blowing decarburization and argon blowing stirring under vacuum conditions. It is the abbreviation of vacuum oxygen blowing decarburization method. There are two types of VOD furnaces: tank type in which the ladle is placed in a vacuum tank for refining and barrel type in which a vacuum cover is directly added to the ladle.

[0003] However, the existing VOD furnace is easily in contact with the outside world during the charging process, and the vacuum environment inside the VOD furnace cannot be guaranteed, and the gas and impurities in the molten steel cannot be removed by vacuuming, thereby reducing the working efficiency of the VOD furnace during processing. Therefore, it is necessary to propose a new type of vacuum charging device for the VOD furnace. Utility Model Content

[0004] The utility model aims to solve the problem that the VOD furnace contacts with the outside world during the charging process, air rushes into the interior of the furnace body, and reduces the working efficiency of the VOD furnace during processing, and proposes a vacuum charging device for the VOD furnace.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vacuum feeding device for a VOD furnace is introduced, comprising a vacuum box, a first working box is fastened to one side of the top wall of the vacuum box, a first motor is installed on one side of the interior of the first working box, a half gear is installed on the output end of the first motor, a gear is meshedly connected to one side of the surface wall of the half gear, a first rotating shaft is installed on one side of the inner wall of the gear, two bent rods are installed on the peripheral side of the surface wall of the first rotating shaft, a second rotating shaft is installed on one side of the surface wall of the two bent rods, a sealing door is installed on one side of the surface wall of the second rotating shaft, a connecting rod is rotatably connected to the bottom side of the inner wall of the vacuum box, the connecting rod and the sealing door are installed, and a sealing edge is fastened to the peripheral side of the surface wall of the sealing door.

[0006] Preferably, a vacuum pump is installed on one side of the top wall of the vacuum box, and an air pipe is installed on the output end of the vacuum pump.

[0007] Preferably, four second brackets are fastened to one side of the bottom wall of the vacuum box, and one side of the surface wall of the vacuum box is connected to a material storage box.

[0008] Preferably, an electric push rod is installed on one side of the surface wall of the material storage box, and a push plate is installed on the output end of the electric push rod.

[0009] Preferably, one side of the bottom wall of the material storage box is connected to the furnace body, and the first bracket is installed on one side of the surface wall of the second bracket.

[0010] Preferably, a second working box is fastened to one side of the surface wall of the first bracket, and a second motor is installed on one side of the interior of the second working box.

[0011] Preferably, an auxiliary roller is installed on one side of the surface wall of the second motor, and a conveyor belt is installed on the surface wall of the auxiliary roller.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, after adding the material to be processed into the vacuum box, the user starts the first motor, drives the sealing door to close under the action of the output end of the first motor, and then evacuates the inside of the vacuum box under the action of the vacuum pump, and then removes the gas and impurities in the molten steel by vacuuming, thereby improving the working efficiency of the VOD furnace processing.

[0014] 2. In the utility model, the conveyor belt is driven to operate under the action of the second motor, and the material to be processed is transported to the vacuum box, thereby improving the degree of automation of VOD furnace processing. The material to be processed is added to the furnace body under the action of the electric push rod, thereby improving the working efficiency of VOD furnace processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural diagram of a vacuum charging device for a VOD furnace is proposed for the utility model;

[0016] Figure 2 The utility model proposes a schematic diagram of the internal cross-sectional structure of a vacuum charging device for a VOD furnace;

[0017] Figure 3 A schematic diagram of the side view of the three-dimensional structure of a vacuum charging device for a VOD furnace is proposed for the utility model;

[0018] Figure 4 The utility model provides a partial structural schematic diagram of a vacuum charging device for a VOD furnace.

[0019] Legend: 1. Vacuum box; 2. First motor; 3. Half gear; 4. Gear; 5. First rotating shaft; 6. Bending rod; 7. Second rotating shaft; 8. Connecting rod; 9. Sealing door; 10. Sealing edge; 11. Auxiliary roller; 12. First working box; 13. First bracket; 14. Second working box; 15. Second motor; 16. Conveyor belt; 17. Second bracket; 18. Material storage box; 19. Push plate; 20. Electric push rod; 21. Vacuum pump; 22. Air pipe; 23. Furnace body. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Example 1

[0023] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a vacuum feeding device for an introduced VOD furnace, comprising a vacuum box 1, a first working box 12 is fastened to one side of the top wall of the vacuum box 1, a first motor 2 is installed on one side of the interior of the first working box 12, a half gear 3 is installed on the output end of the first motor 2, a gear 4 is meshingly connected to one side of the surface wall of the half gear 3, a first rotating shaft 5 is installed on one side of the inner wall of the gear 4, two bent rods 6 are installed on the peripheral side of the surface wall of the first rotating shaft 5, a second rotating shaft 7 is installed on one side of the surface wall of the two bent rods 6, a sealing door 9 is installed on one side of the surface wall of the second rotating shaft 7, a connecting rod 8 is rotatably connected to the bottom side of the inner wall of the vacuum box 1, the connecting rod 8 and the sealing door 9 are installed, a sealing edge 10 is fastened to the peripheral side of the surface wall of the sealing door 9, a vacuum pump 21 is installed on one side of the top wall of the vacuum box 1, and an air pipe 22 is installed on the output end of the vacuum pump 21.

[0024] In this embodiment, after the user adds the material to be processed into the interior of the vacuum box 1, the first motor 2 installed in the first working box 12 is started. Under the action of the first motor 2, the output end of the first motor 2 rotates to drive the half gear 3 to rotate, the half gear 3 rotates to drive the gear 4 to rotate, the gear 4 rotates to drive the first rotating shaft 5 to rotate, the first rotating shaft 5 rotates to drive the two bent rods 6 to rotate, the bent rod 6 rotates to drive the second rotating shaft 7 and the sealing door 9 to move, and then the vacuum box 1 is sealed under the action of the sealing door 9 and the sealing edge 10, and the connecting rod 8 connects and supports the bottom of the sealing door 9. Then, the user starts the vacuum pump 21, and the gas in the vacuum box 1 is extracted under the action of the air pipe 22, and then the gas and impurities in the molten steel are removed by vacuuming, thereby improving the working efficiency of the VOD furnace processing.

[0025] Example 2

[0026] like Figure 1-Figure 4 As shown, four second brackets 17 are fastened to one side of the bottom wall of the vacuum box 1, a material storage box 18 is connected to one side of the surface wall of the vacuum box 1, an electric push rod 20 is installed on one side of the surface wall of the material storage box 18, a push plate 19 is installed on the output end of the electric push rod 20, a furnace body 23 is connected to one side of the bottom wall of the material storage box 18, a first bracket 13 is installed on one side of the surface wall of the second bracket 17, a second working box 14 is fastened to one side of the surface wall of the first bracket 13, a second motor 15 is installed on one side of the interior of the second working box 14, an auxiliary roller 11 is installed on one side of the surface wall of the second motor 15, and a conveyor belt 16 is installed on the surface wall of the auxiliary roller 11.

[0027] In this embodiment, the user places the material to be processed on the conveyor belt 16 and starts the second motor 15 installed in the second working box 14. Under the action of the second motor 15, the output end of the second motor 15 rotates to drive the auxiliary roller 11 to rotate, and the rotation of the auxiliary roller 11 drives the conveyor belt 16 installed on the first bracket 13 to rotate, thereby transporting the material to be processed to the inside of the vacuum box 1. Then, the user opens the furnace cover on the top of the furnace body 23 and starts the electric push rod 20 installed on one side of the material storage box 18. Under the action of the push plate 19, the material to be processed is pushed from the inside of the vacuum box 1 to the inside of the furnace body 23, thereby improving the degree of automation of the VOD furnace processing and the work efficiency of the VOD furnace processing and loading. The second bracket 17 supports the vacuum box 1 and the material storage box 18.

[0028] The working principle of this embodiment is as follows: when in use, first connect the power supply, the user places the material to be processed on the conveyor belt 16, and starts the second motor 15. The output end of the second motor 15 rotates to drive the auxiliary roller 11 to rotate, and the auxiliary roller 11 rotates to drive the conveyor belt 16 to rotate, and then the material to be processed is transported to the inside of the vacuum box 1. Next, the user starts the first motor 2. The output end of the first motor 2 rotates to drive the half gear 3 to rotate. The half gear 3 rotates to drive the gear 4 to rotate. The gear 4 rotates to drive the first shaft 5 to rotate. The first shaft 5 rotates to drive the two bent rods 6 to rotate. The bent rod 6 rotates to drive the second shaft 7 and the sealing door 9. Move, and then seal the vacuum box 1 under the action of the sealing door 9 and the sealing edge 10, the connecting rod 8 connects and supports the bottom of the sealing door 9, and then the user starts the vacuum pump 21, and the gas in the vacuum box 1 is extracted under the action of the air pipe 22, and then the gas and impurities in the molten steel are removed by vacuuming. Finally, the user opens the furnace cover on the top of the furnace body 23, starts the electric push rod 20 installed on one side of the storage box 18, and under the action of the push plate 19, the material to be processed is pushed from the inside of the vacuum box 1 to the inside of the furnace body 23, and the second bracket 17 supports the vacuum box 1 and the storage box 18.

[0029] The wiring diagram of the first motor 2, the second motor 15, the electric push rod 20, the vacuum pump 21 and the furnace body 23 in the utility model belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the first motor 2, the second motor 15, the electric push rod 20, the vacuum pump 21 and the furnace body 23 are no longer explained in detail.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vacuum charging device for a VOD furnace, characterized in that: The invention comprises a vacuum box (1), wherein a first working box (12) is fixedly connected to one side of the top wall of the vacuum box (1), a first motor (2) is installed on one side of the interior of the first working box (12), a half gear (3) is installed on the output end of the first motor (2), a gear (4) is meshingly connected to one side of the surface wall of the half gear (3), a first rotating shaft (5) is installed on one side of the inner wall of the gear (4), two bent rods (6) are installed on the peripheral side of the surface wall of the first rotating shaft (5), a second rotating shaft (7) is installed on one side of the surface wall of the two bent rods (6), a sealing door (9) is installed on one side of the surface wall of the second rotating shaft (7), a connecting rod (8) is rotatably connected to the bottom side of the inner wall of the vacuum box (1), the connecting rod (8) and the sealing door (9) are installed, and a sealing edge (10) is fixedly connected to the peripheral side of the surface wall of the sealing door (9).

2. The vacuum charging device for VOD furnace according to claim 1, characterized in that: A vacuum pump (21) is installed on one side of the top wall of the vacuum box (1), and an air pipe (22) is installed on the output end of the vacuum pump (21).

3. The vacuum charging device for VOD furnace according to claim 2 is characterized in that: Four second brackets (17) are fastened to one side of the bottom wall of the vacuum box (1), and a material storage box (18) is connected to one side of the surface wall of the vacuum box (1).

4. The vacuum charging device for VOD furnace according to claim 3 is characterized in that: An electric push rod (20) is installed on one side of the surface wall of the material storage box (18), and a push plate (19) is installed on the output end of the electric push rod (20).

5. The vacuum charging device for VOD furnace according to claim 4 is characterized in that: One side of the bottom wall of the material storage box (18) is connected to the furnace body (23), and one side of the surface wall of the second bracket (17) is provided with the first bracket (13).

6. The vacuum charging device for VOD furnace according to claim 5, characterized in that: A second working box (14) is fastened to one side of the surface wall of the first bracket (13), and a second motor (15) is installed on one side of the interior of the second working box (14).

7. The vacuum charging device for VOD furnace according to claim 6, characterized in that: An auxiliary roller (11) is installed on one side of the surface wall of the second motor (15), and a conveyor belt (16) is installed on the surface wall of the auxiliary roller (11).

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