RH refining furnace capable of filtering alloy materials

Abstract

The RH refining furnace capable of filtering the alloy materials comprises a furnace body, a material box arranged on one side of the furnace body and a filter box arranged on one side of the furnace body, an outlet of the filter box is located above the material box, a filter assembly is arranged inside the filter box, a dust removal assembly is arranged outside the filter box, and the dust removal assembly is located above the material box. The filter assembly comprises a limiting hoop, a rotary disc and a filter cartridge, the filter cartridge penetrates through the limiting hoop and is rotatably connected with the limiting hoop, the rotary disc is fixedly installed on one side of the filter cartridge, and a hopper is fixedly connected to one side of the filter box. By means of the rotating filter cylinder and the ash removal rolling brush used in cooperation, fine particles and dust in alloy materials can be finely filtered, the fine particles in alloy can be effectively intercepted and collected, most of the dust can be intercepted in the filter box, and impurities are prevented from entering an RH refining furnace along with the alloy.

Description

Technical Field

[0001] The utility model relates to the technical field of **, in particular to an RH refining furnace capable of filtering alloy materials. Background Art

[0002] In the technical field of steel smelting, alloys used in the production of RH refining furnaces are generally stored in a bin, transported by a vertical belt, and then added to the RH refining furnace through a feeding system. Before the alloy enters the bin, in order to ensure the yield, large pieces of the alloy need to be crushed. When the alloy is crushed, small lumps of alloy, fine particles and dust alloy will be generated. The content of fine particles and dust alloy accounts for 15-20% of the total amount of the alloy, and the dust content is about 10%. When the RH refining furnace produces electrical steel, a vacuum pumping operation is required (the vacuum degree is required to be below 100 Pa). When adding the alloy into the RH refining furnace, small lumps of alloy will be added into the molten steel, but the fine particles and dust alloy in the alloy will be sucked into the internal part of the vacuum pump. Since the power source of the vacuum pump is steam and is cooled by turbocirculating water, the entire pump body and condenser of the vacuum pump are in a wet state. After the dust alloy enters the internal part of the vacuum pump, most of it adsorbs onto the inner walls of the pump body and condenser, and part of it enters the water circulation system along with the turbocirculating water. With the continuous accumulation of the adsorption amount of alloy dust, thick scale will be generated on the inner walls of the pump body and condenser, and even part of the vacuum pumping channel will be blocked, seriously affecting the vacuum pumping operation.

[0003] The Chinese patent specification discloses an alloy filtering device for an RH refining furnace (publication number: CN205341246U), and specifically discloses the following content: The filtering device includes a device base, a hopper is installed on the device base, a vibration component is installed at the bottom of the hopper, a screen is installed at the bottom of the hopper, a bin is arranged below the discharge port of the hopper, and a collection hopper is arranged below the position of the screen. This device can screen alloy materials, but there are the following drawbacks: Since the screen is inclined, although most of the fine alloy particles will be screened and fall into the collection hopper, there will still be a small amount of fine alloy particles falling into the bin together with the large alloy particles, and at the same time, the vibration causes alloy dust to pollute the working environment. Content of the Utility Model

[0004] To solve the deficiencies mentioned in the above background art, the purpose of the present utility model is to provide an RH refining furnace capable of filtering alloy materials. Through the rotating filter cylinder and the cooperating dust cleaning brush, the fine filtration of fine particles and dust in the alloy materials is realized. This design can not only effectively intercept and collect the fine particles in the alloy, but also intercept most of the dust in the filter box, avoiding these impurities from entering the RH refining furnace together with the alloy. Compared with the traditional method, the present invention significantly improves the yield of the alloy, reduces the waste of raw materials, and thus brings higher economic benefits to the enterprise.

[0005] The object of the present utility model can be achieved by the following technical solutions:

[0006] An RH refining furnace capable of filtering alloy materials includes a furnace body, a feed box arranged on one side of the furnace body, and a filtering box arranged on one side of the furnace body. The outlet of the filtering box is located above the feed box. The outlet of the filtering box being located above the feed box ensures that the filtered alloy materials can smoothly fall into the feed box. A filtering component is arranged inside the filtering box, and a dust removal component is arranged outside the filtering box. The filtering component includes a limiting hoop, a turntable, and a filtering cylinder. The filtering cylinder passes through the limiting hoop, and the filtering cylinder is rotatably connected to the limiting hoop. The turntable is fixedly installed on one side of the filtering cylinder. A hopper is fixedly connected to one side of the filtering box. After the alloy materials enter the filtering box from the hopper, they are screened by the rotating filtering cylinder, and fine particles and dust are intercepted on the outer surface of the filtering cylinder.

[0007] Further preferably, two support rods are arranged at the bottom of the filtering cylinder, and one of the support rods is an electric lifting rod. One being an electric lifting rod can adjust the height of the filtering cylinder as needed.

[0008] Further preferably, a rotating shaft is fixedly connected to one side of the turntable. One end of the rotating shaft passes through the filtering box and extends to the outside of the filtering box. A mounting plate is fixedly connected to the outside of the filtering box, and a driving motor is installed on the top of the mounting plate. The driving motor is used to drive the rotating shaft to rotate.

[0009] Further preferably, a dust cleaning component is also arranged inside the filtering box. The dust cleaning component includes a transmission wheel set arranged on the output shaft of the driving motor. The transmission wheel set includes a driving wheel and a driven wheel, and the driving wheel and the driven wheel are connected by a belt. By the transmission wheel set, one driving source drives multiple actions, reducing the manufacturing and use costs.

[0010] Further preferably, the driving wheel is fixedly connected to the output shaft of the driving motor, and a dust cleaning shaft penetrates through the filtering box. The dust cleaning shaft is fixedly connected to the driven wheel.

[0011] Further preferably, a dust cleaning brush is installed on the dust cleaning shaft, and the dust cleaning brush is in contact with the filtering cylinder. The dust cleaning shaft passes through the filtering box and is fixedly connected to the driven wheel, and rotates with the transmission wheel set. The dust cleaning brush is installed on the dust cleaning shaft and is in contact with the outer surface of the filtering cylinder, effectively removing the fine particles and dust attached to the filtering cylinder. Rotating with the transmission wheel set, the dust cleaning shaft and the dust cleaning brush rotate synchronously, and the dust cleaning brush cleans the surface of the filtering cylinder. The automatic cleaning function of the dust cleaning brush reduces the frequency and difficulty of manual cleaning.

[0012] Further preferably, the dust removal assembly includes a dust removal box, a suction pipe is arranged inside the dust removal box, an air extractor is fixedly installed outside the dust removal box, and the suction end of the air extractor is connected to the suction pipe. By using the air extractor to pump air inside the dust removal box to create a negative pressure, external air enters the filter box through the filter cylinder, making it easier for alloy dust to pass through the filter holes and reducing the dispersion of alloy dust, thus achieving the dust removal effect. The design of the dust removal assembly effectively prevents dust from polluting the environment and improves the working environment.

[0013] Further preferably, a filter head is arranged at the end of the suction pipe, and the filter head is located inside the dust removal box. The alloy dust is retained in the dust removal box by the filter head for other uses.

[0014] Advantages of the present utility model:

[0015] 1. Through the rotating filter cylinder and the cooperating cleaning brush roller used in the present utility model, fine filtration of fine particles and dust in the alloy material is achieved. This design can not only effectively intercept and collect fine particles in the alloy, but also retain most of the dust in the filter box, preventing these impurities from entering the RH refining furnace together with the alloy. Compared with traditional methods, the present invention significantly improves the alloy yield rate, reduces waste of raw materials, and thus brings higher economic benefits to the enterprise;

[0016] 2. By using the air extractor to pump air inside the dust removal box to create a negative pressure, external air enters the filter box through the filter cylinder, making it easier for alloy dust to pass through the filter holes and reducing the dispersion of alloy dust, thus achieving the dust removal effect. The design of the dust removal assembly effectively prevents dust from polluting the environment and improves the working environment;

[0017] 3. By rotating with the transmission pulley group, the cleaning shaft and the cleaning brush roller rotate synchronously, and the cleaning brush roller cleans the surface of the filter cylinder. The automatic cleaning function of the cleaning brush roller reduces the frequency and difficulty of manual cleaning. Description of the Drawings

[0018] The following further describes the present utility model with reference to the drawings.

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the filter box in the present utility model;

[0021] Figure 3 is the cross-sectional view of the filter box structure in the present utility model;

[0022] Figure 4 is the structural schematic diagram of the transmission pulley group in the present utility model.

[0023] In the figure:

[0024] 1. Furnace body; 2. Feed box; 3. Filter box; 4. Limit hoop; 5. Turntable; 6. Filter cylinder; 7. Hopper; 8. Support rod; 9. Rotating shaft; 10. Mounting plate; 11. Driving motor; 12. Transmission pulley set; 13. Driving pulley; 14. Driven pulley; 15. Belt; 16. Ash cleaning shaft; 17. Ash cleaning brush; 18. Dust removal box; 19. Suction pipe; 20. Exhauster; 21. Filter head. Specific embodiments

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0027] As Figures 1-4 shown, an RH refining furnace capable of filtering alloy materials includes a furnace body 1, a feed box 2 provided on one side of the furnace body 1, and a filter box 3 provided on one side of the furnace body 1. The outlet of the filter box 3 is located above the feed box 2. The outlet of the filter box 3 is located above the feed box 2 to ensure that the filtered alloy materials can smoothly fall into the feed box 2. A filter assembly is provided inside the filter box 3, and a dust removal assembly is provided outside the filter box 3. The filter assembly includes a limit hoop 4, a turntable 5, and a filter cylinder 6. The filter cylinder 6 passes through the limit hoop 4, and the filter cylinder 6 is rotatably connected to the limit hoop 4. The turntable 5 is fixedly installed on one side of the filter cylinder 6. A hopper 7 is fixedly connected to one side of the filter box 3. After the alloy materials enter the filter box 3 from the hopper 7, they are screened by the rotating filter cylinder 6, and fine particles and dust are intercepted on the outer surface of the filter cylinder 6.

[0028] Two support rods 8 are provided at the bottom of the filter cylinder 6, and one of the support rods 8 is an electric lifting rod. One of them is an electric lifting rod, and the height of the filter cylinder 6 can be adjusted as needed.

[0029] A rotating shaft 9 is fixedly connected to one side of the turntable 5, one end of the rotating shaft 9 passes through the filter box 3 and extends to the outside of the filter box 3, a mounting plate 10 is fixedly connected to the outside of the filter box 3, a driving motor 11 is installed on the top of the mounting plate 10, and the driving motor 11 is used to drive the rotating shaft 9 to rotate.

[0030] The filter box 3 is also provided with a dust cleaning component, which includes a transmission wheel set 12 arranged on the output shaft of the driving motor 11, and the transmission wheel set 12 includes a driving wheel 13 and a passive wheel 14, and the driving wheel 13 and the passive wheel 14 are connected by a belt 15. The transmission wheel set 12 realizes that one driving source drives multiple actions, thereby reducing the manufacturing and use costs.

[0031] The driving wheel 13 is fixedly connected to the output shaft of the driving motor 11 . A dust cleaning shaft 16 runs through the filter box 3 . The dust cleaning shaft 16 is fixedly connected to the driven wheel 14 .

[0032] The cleaning shaft 16 is provided with a cleaning roller brush 17, which fits the filter cartridge 6. The cleaning shaft 16 passes through the filter box 3 and is fixedly connected to the passive wheel 14, and rotates with the transmission wheel group 12. The cleaning roller brush 17 is installed on the cleaning shaft 16, fits the outer surface of the filter cartridge 6, and effectively removes fine particles and dust attached to the filter cartridge 6. As the transmission wheel group 12 rotates, the cleaning shaft 16 and the cleaning roller brush 17 rotate synchronously, and the cleaning roller brush cleans the surface of the filter cartridge 6. The automatic cleaning function of the cleaning roller brush 17 reduces the frequency and difficulty of manual cleaning.

[0033] The dust removal assembly includes a dust removal box 18, a suction pipe 19 is provided inside the dust removal box 18, an air extractor 20 is fixedly installed outside the dust removal box 18, and the suction end of the air extractor 20 is connected to the suction pipe 19. The dust removal box 18 is evacuated by the air extractor 20 to generate negative pressure, so that the outside air enters the filter box 3 through the filter cartridge 6, making it easier for the alloy dust to pass through the filter hole, and reducing the alloy dust from floating, so as to achieve the dust removal effect. The design of the dust removal assembly effectively prevents dust from polluting the environment and improves the working environment.

[0034] The end of the suction pipe 19 is provided with a filter head 21, and the filter head 21 is located inside the dust removal box 18. The alloy dust is retained in the dust removal box 18 by the filter head 21 for other uses.

[0035] Working principle:

[0036] Using this device, the alloy material is added to the filter cylinder 6 from the hopper 7. The turntable 5 is connected to the driving motor 11 through the rotating shaft 9. The driving motor 11 is installed on the mounting plate 10 outside the filter box 3. The driving motor 11 drives the filter cylinder 6 to rotate. Then, the fine particles in the alloy will be screened out and enter the interior of the filter box 3. At the same time, the air extractor 20 is turned on. The interior of the dust removal box 18 is evacuated by the air extractor 20 to create a negative pressure. Thus, the outside air enters the filter box 3 through the filter cylinder 6, making it easier for the alloy dust to pass through the filter holes and reducing the dispersion of the alloy dust, achieving the dust removal effect. The design of the dust removal component effectively prevents environmental pollution caused by dust and improves the working environment.

[0037] During the filtration process, as the transmission pulley set 12 rotates, the dust cleaning shaft 16 and the dust cleaning brush 17 rotate synchronously. The dust cleaning brush cleans the surface of the filter cylinder 6. The automatic cleaning function of the dust cleaning brush 17 reduces the frequency and difficulty of manual cleaning.

[0038] When filtering, the height of one end of the hopper is raised. When pouring the material, the height of one end of the hopper is lowered, and the screened alloy material flows into the material box.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. An RH refining furnace capable of filtering alloy materials, characterized in that: The invention comprises a furnace body (1), a material box (2) arranged on one side of the furnace body (1), and a filter box (3) arranged on one side of the furnace body (1); the outlet of the filter box (3) is located above the material box (2); a filter assembly is arranged inside the filter box (3); a dust removal assembly is arranged outside the filter box (3); the filter assembly comprises a limit hoop (4), a rotating disk (5), and a filter cartridge (6); the filter cartridge (6) passes through the limit hoop (4); the filter cartridge (6) is rotatably connected to the limit hoop (4); the rotating disk (5) is fixedly mounted on one side of the filter cartridge (6); and a hopper (7) is fixedly connected to one side of the filter box (3).

2. The RH refining furnace capable of filtering alloy materials according to claim 1, characterized in that: Two support rods (8) are arranged at the bottom of the filter cylinder (6), one of the support rods (8) being an electric lifting rod.

3. The RH refining furnace capable of filtering alloy materials according to claim 2, characterized in that: A rotating shaft (9) is fixedly connected to one side of the rotating disk (5); one end of the rotating shaft (9) passes through the filter box (3) and extends to the outside of the filter box (3); a mounting plate (10) is fixedly connected to the outside of the filter box (3); a driving motor (11) is mounted on the top of the mounting plate (10); the driving motor (11) is used to drive the rotating shaft (9) to rotate.

4. The RH refining furnace capable of filtering alloy materials according to claim 3, characterized in that: A dust cleaning component is also provided in the filter box (3), the dust cleaning component comprising a transmission wheel group (12) provided on the output shaft of the drive motor (11), the transmission wheel group (12) comprising a driving wheel (13) and a driven wheel (14), the driving wheel (13) and the driven wheel (14) being connected to each other via a belt (15).

5. The RH refining furnace capable of filtering alloy materials according to claim 4, characterized in that: The driving wheel (13) is fixedly connected to the output shaft of the driving motor (11); a dust cleaning shaft (16) passes through the filter box (3); and the dust cleaning shaft (16) is fixedly connected to the driven wheel (14).

6. The RH refining furnace capable of filtering alloy materials according to claim 5, characterized in that: A cleaning roller brush (17) is mounted on the cleaning shaft (16), and the cleaning roller brush (17) is in contact with the filter cartridge (6).

7. The RH refining furnace capable of filtering alloy materials according to claim 6, characterized in that: The dust removal assembly comprises a dust removal box (18), a suction pipe (19) is arranged inside the dust removal box (18), an air extractor (20) is fixedly mounted outside the dust removal box (18), and a suction end of the air extractor (20) is connected to the suction pipe (19).

8. The RH refining furnace capable of filtering alloy materials according to claim 7, characterized in that: A filter head (21) is provided at the end of the suction tube (19), and the filter head (21) is located inside the dust removal box (18).

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