A continuous casting gas atomization powder production device

Abstract

The utility model provides a kind of continuous casting's gas atomization powder production equipment, belong to gas atomization powder production equipment technical field, including atomization tower, first intermediate frequency furnace, second intermediate frequency furnace, tundish, atomization tower, powder pipeline, cyclone separation device, small tank, cooling device, mobile tank, dust collector, fan;First intermediate frequency furnace pours, second intermediate frequency furnace charges steel, when first intermediate frequency furnace pouring is completed, second intermediate frequency furnace has poured steel condition, to this cycle, realize continuous casting.The utility model solves the technical problem that existing gas atomization powder production equipment cannot realize continuous casting, with the characteristics of realizing multiple furnace continuous casting, guarantee production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas atomization powder making equipment, and in particular relates to a gas atomization powder making equipment that can be continuously poured. Background Technology

[0002] Gas atomization powder making equipment is a commonly used equipment for producing soft magnetic metal powder. It uses high-temperature nitrogen gas to break molten steel into atomized powder. The atomized powder is then processed into magnetic cores through processes such as insulation coating, pressing, annealing, impregnation, and spraying. Magnetic cores are one of the core components of inductor elements.

[0003] The freshly collected atomized powder is very hot. To ensure its performance, it needs to be cooled under inert gas protection in a cooling device until it reaches room temperature before being collected into the moving material tank. However, due to the capacity limitations of the cooling tank and the powder cooling cycle, casting must generally be stopped after a maximum of two consecutive melting cycles (at which point the atomizing nozzle has not reached its operating limit), and the next atomization cycle must begin. The powder cooling takes a certain amount of time, during which the induction furnace is also feeding and melting. Only after the powder is collected into the moving material tank can the next atomization cycle begin.

[0004] The aforementioned gas atomization powder production equipment can only produce a maximum of two batches continuously, which reduces production efficiency and increases the cost of consumables. Utility Model Content

[0005] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects and advantages of the present application more readily apparent.

[0006] This utility model proposes a gas atomization powder making equipment that can be continuously poured, which solves the technical problem that existing gas atomization powder making equipment cannot achieve continuous pouring. It has the characteristics of being able to achieve continuous pouring of multiple furnaces and ensuring production efficiency.

[0007] This utility model discloses a continuously pourable gas atomization powder making device, including an atomization tower, a first medium-frequency furnace, a second medium-frequency furnace, a cooling device, and a movable material tank. The first medium-frequency furnace is located at the charging position for feeding steelmaking, or at the pouring position for pouring molten steel into the atomization tower. The second medium-frequency furnace is configured such that when the first medium-frequency furnace is at the charging position, the second medium-frequency furnace is at the pouring position to pour molten steel into the atomization tower, and when the first medium-frequency furnace is at the pouring position, the second medium-frequency furnace is at the charging position for feeding steelmaking. Depending on the different structural forms of the furnace doors, the first and second medium-frequency furnaces have different movement trajectories and different charging positions. The cooling device is used to cool the atomized powder prepared by the atomization tower. The movable material tank is used to collect the atomized powder cooled by the cooling device.

[0008] In some embodiments, a small material tank connected to the outlet of the atomizing tower is also included, and the small material tank is connected to a cooling device.

[0009] In some embodiments, the small material tank is connected to the cooling device via a first valve; the first valve is configured to open when the steel pouring in the first or second intermediate frequency furnace is completed, and to close when all the atomized powder in the small material tank has entered the cooling device.

[0010] In some embodiments, the cooling device is connected to the mobile material tank via a second valve; the second valve is set to a normally open state so that the powder is cooled in real time after entering the cooling device.

[0011] In some embodiments, the small material tank is connected to the atomizing tower via a cyclone separator; the cyclone separator and the small material tank can be a single or multi-stage system. Multiple stages can be configured to meet the powder collection requirements, depending on actual needs.

[0012] In some embodiments, the cyclone separator is connected to the outlet of the atomizing tower via a powder feeding pipe.

[0013] In some embodiments, the capacity of the small material tank is not less than the furnace capacity of the medium-frequency furnace.

[0014] In some embodiments, a dust collector connected to the cyclone separator is also included.

[0015] In some embodiments, a fan connected to the dust collector is also included.

[0016] In some embodiments, an intermediate package is also included, which is connected to the feed inlet of the atomizing tower.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention provides a continuously pourable gas atomization powder-making device. By setting up a first medium-frequency furnace and a second medium-frequency furnace, and limiting the alternating feeding of the first and second medium-frequency furnaces into the atomization tower for steelmaking and pouring, continuous operation of the atomization tower is achieved before the atomization nozzle reaches its usage limit. At the same time, by setting up a cooling device and limiting the powder output flow rate of the cooling device to be equal to the pouring flow rate of the first or second medium-frequency furnace, the pouring flow rate at the "input" end and the powder output rate at the "output" end are kept in balance. This helps to ensure that the atomized powder is continuously produced, cooled, and collected, achieving true multi-furnace continuous pouring and real-time powder collection, thereby improving production efficiency. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of the continuously castable gas atomizing powder-making equipment provided in an embodiment of this utility model;

[0021] In the above figures: 1. First medium-frequency furnace; 2. Second medium-frequency furnace; 3. Tundish; 4. Atomizing tower; 5. Powder feeding pipeline; 6. Cyclone separator; 7. Small material tank; 8. First valve; 9. Cooling device; 10. Second valve; 11. Moving material tank; 12. Dust collector; 13. Fan. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments provided by this utility model without inventive effort are within the scope of protection of this utility model.

[0023] This utility model embodiment provides a continuously pourable gas atomization powder making device. Figure 1 This is a schematic diagram of the structure of a continuously pourable gas atomization powder making device according to an embodiment of the present invention.

[0024] refer to Figure 1 As shown, the continuously pourable gas atomization powder making equipment includes an atomization tower 4, a first intermediate frequency furnace 1, a second intermediate frequency furnace 2, a cooling device 9, and a movable material tank 11. The first intermediate frequency furnace 1 is positioned at the charging position for feeding steelmaking, or at the pouring position to pour molten steel into the atomization tower 4. The second intermediate frequency furnace 2 is configured such that when the first intermediate frequency furnace 1 is at the charging position, the second intermediate frequency furnace 2 is at the pouring position to pour molten steel into the atomization tower 4, and when the first intermediate frequency furnace 1 is at the pouring position, the second intermediate frequency furnace 2 is at the charging position for feeding steelmaking. Depending on the different furnace door structures, the first intermediate frequency furnace 1 and the second intermediate frequency furnace 2 have different movement trajectories and different charging positions. The cooling device 9 is used to cool the atomized powder prepared by the atomization tower 4. The movable material tank 11 is used to collect the atomized powder cooled by the cooling device 9.

[0025] In some embodiments, the powder discharge flow rate of the cooling device 9 is configured to be equal to the casting flow rate of the first intermediate frequency furnace 1 or the second intermediate frequency furnace 2.

[0026] The aforementioned continuously pourable gas atomization powder-making equipment, by setting up a first medium-frequency furnace 1 and a second medium-frequency furnace 2, and limiting the alternating feeding of the first medium-frequency furnace 1 and the second medium-frequency furnace 2 to steelmaking and pouring into the atomization tower 4, achieves continuous operation of the atomization tower 4 before the atomization nozzle reaches its usage limit. At the same time, by setting up a second valve 10 and limiting the powder output flow rate of the cooling device 9 to be equal to the pouring flow rate of the first medium-frequency furnace 1 or the second medium-frequency furnace 2, the pouring flow rate at the "input" end and the powder output rate at the "output" end are kept in balance. This is conducive to ensuring that the atomized powder is continuously produced, cooled, and collected, achieving true multi-furnace continuous pouring and real-time powder collection, thereby improving production efficiency.

[0027] It should be noted that, to achieve continuous casting in the first intermediate frequency furnace 1 and the second intermediate frequency furnace 2, it is first necessary to control the steel flow rate of the first intermediate frequency furnace 1 to prevent it from being too fast. If the flow rate is too fast, the second intermediate frequency furnace 2 will not reach the required temperature before the first intermediate frequency furnace 1 finishes casting, preventing continuous casting. Simultaneously, an excessively high flow rate will prevent the powder from being collected at a temperature below a certain threshold within a certain timeframe. Furthermore, while casting in the first intermediate frequency furnace 1, it is also necessary to control the melting efficiency of the second intermediate frequency furnace 2 to ensure that the temperature of the molten steel in the second intermediate frequency furnace 2 reaches the casting conditions before the first intermediate frequency furnace 1 finishes casting. The steel flow rate of the first intermediate frequency furnace 1 and the melting efficiency of the second intermediate frequency furnace 2 can both be calculated and matched using commonly used methods in this field.

[0028] The cooling device 9 enables rapid cooling of the powder, allowing the small material tank 7 to be idle as quickly as possible. This cooling device 9 achieves rapid cooling of the atomized powder at a certain output rate, ensuring that the atomized powder from the previous batch is collected in the mobile material tank 11 within a specified time, while simultaneously controlling the powder output temperature within a certain range. Using the aforementioned gas atomization powder preparation equipment, the atomized powder does not require cooling in a large water-cooled tank and can be directly transferred to the mobile material tank 11, creating conditions for continuous casting in multiple batches.

[0029] The working process of the above-mentioned continuously castable atomized powder making equipment is as follows:

[0030] The first intermediate frequency furnace 1 and the second intermediate frequency furnace 2 are charged to start steelmaking, while other preparatory work is carried out. After the steel in the first intermediate frequency furnace 1 reaches the required temperature, it is ready to be poured. The first intermediate frequency furnace 1 begins pouring steel. The molten steel is atomized by nitrogen and enters the atomization tower 4. The resulting atomized powder is cooled by the cooling device 9 and then transported to the mobile material tank 11.

[0031] Meanwhile, after the first intermediate frequency furnace 1 stops pouring, the second intermediate frequency furnace 2 has also moved to the pouring position to start pouring steel. The first intermediate frequency furnace 1 has returned to the feeding position to prepare for the third heat. The second intermediate frequency furnace 2 starts atomization powdering, which is then collected in the moving material tank 11 through the cooling device 9.

[0032] After the second intermediate frequency furnace 2 is completed, the molten steel in the first intermediate frequency furnace 1 reaches the required temperature and is moved to the pouring position to begin pouring. The second intermediate frequency furnace 2 begins to be fed to prepare for the fourth batch of atomized powder spraying. This cycle is repeated until the atomizing nozzle reaches the end of its service life, thus ending the atomized powder spraying cycle.

[0033] In some embodiments, a small material tank 7 connected to the outlet of the atomizing tower 4 is also included. The small material tank 7 is connected to the cooling device 9. The small material tank 7 is connected to the cooling device 9 through a first valve 8. The first valve 8 is configured to open when the steel pouring of the first medium-frequency furnace 1 or the second medium-frequency furnace 2 is completed, and to close when all the atomized powder in the small material tank 7 enters the cooling device 9.

[0034] In some embodiments, the cooling device 9 is connected to the mobile material tank 11 via a second valve 10; the second valve 10 is set to a normally open state, and the powder is cooled in real time after entering the cooling device 9.

[0035] In some embodiments, the small material tank 7 is connected to the atomizing tower 4 via a cyclone separator 6; the cyclone separator 6 and the small material tank 7 are of one or more stages. Multiple stages can be set according to actual needs to meet powder collection requirements. In some embodiments, the cyclone separator 6 is connected to the outlet of the atomizing tower 4 via a powder feeding pipe 5.

[0036] In some embodiments, the capacity of the small material tank 7 is not less than the furnace capacity of the medium-frequency furnace.

[0037] In some embodiments, a dust collector 12 connected to the cyclone separator 6 and a fan 13 connected to the dust collector 12 are also included.

[0038] In some embodiments, an intermediate package 3 is also included, which is connected to the feed inlet of the atomizing tower 4.

[0039] The working process of the above-mentioned continuously castable atomized powder-making equipment can also be further described as follows:

[0040] The first intermediate frequency furnace 1 and the second intermediate frequency furnace 2 are charged to start steelmaking, while other preparations are made. After the steel in the first intermediate frequency furnace 1 reaches the required temperature, it is ready to pour steel. The first intermediate frequency furnace 1 begins pouring steel. The molten steel is atomized by nitrogen and enters the atomization tower 4. It then enters the cyclone separator 6 through the powder feeding pipe 5. The powder is filtered by the cyclone and collected at the cyclone separator 6, entering the small material tank 7. The small material tank 7 can store about one batch of atomized powder. After the first intermediate frequency furnace 1 finishes pouring steel, the first valve 8 is opened. In a very short time, the powder in the small material tank 7 enters the cooling device 9. The first valve 8 is closed, and the atomized powder enters the cooling device 9. The powder is rapidly cooled in the cooling device 9, and the outlet temperature of the powder is controlled within a certain range. With the first valve 8 closed, all the atomized powder from the first batch is collected in real time in the mobile material tank 11.

[0041] Meanwhile, after the first intermediate frequency furnace 1 stops pouring and the first valve 8 is closed, the second intermediate frequency furnace 2 has also moved to the second pouring position to start pouring steel. The first intermediate frequency furnace 1 has returned to the feeding position to prepare for the third furnace. The second intermediate frequency furnace 2 starts atomization powdering, which is collected in the moving material tank 11 through the cyclone separator 6, the small material tank 7, the first valve 8, and the cooling device 9.

[0042] After the second intermediate frequency furnace 2 is completed, the molten steel in the first intermediate frequency furnace 1 reaches the required temperature and is moved to the first pouring position to begin pouring. The second intermediate frequency furnace 2 begins to add material to prepare for the fourth batch of atomized powder spraying. This cycle continues until the atomizing nozzle reaches the end of its service life, thus ending the atomized powder spraying cycle.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A continuously pourable atomized powder-making device, characterized in that, include Atomizing tower; The first intermediate frequency furnace is located at the charging position for charging and steelmaking, or at the casting position for pouring molten steel into the atomizing tower; The second intermediate frequency furnace is configured such that when the first intermediate frequency furnace is located at the charging position, the second intermediate frequency furnace is located at the casting position to pour molten steel into the atomizing tower, and when the first intermediate frequency furnace is located at the casting position, the second intermediate frequency furnace is located at the charging position to charge and steelmaking. Cooling device for cooling the atomized powder prepared by the atomizing tower; A movable material tank is used to collect the atomized powder obtained after being cooled by the cooling device.

2. The gas atomization powder making equipment according to claim 1, characterized in that, It also includes a small material tank connected to the outlet of the atomizing tower, and the small material tank is connected to the cooling device.

3. The gas atomization powder making equipment according to claim 2, characterized in that, The small material tank is connected to the cooling device via a first valve; The first valve is configured to open when the first or second intermediate frequency furnace has finished casting steel, and to close when all the atomized powder in the small material tank has entered the cooling device.

4. The gas atomization powder making equipment according to claim 3, characterized in that, The cooling device is connected to the mobile material tank via a second valve; the second valve is set to a normally open state, and the powder is cooled in real time after entering the cooling device.

5. The gas atomization powder making equipment according to claim 2, characterized in that, The small material tank is connected to the atomizing tower via a cyclone separator; the cyclone separator and the small material tank are in one or more stages.

6. The gas atomization powder making equipment according to claim 5, characterized in that, The cyclone separator is connected to the outlet of the atomizing tower via a powder feeding pipe.

7. The gas atomization powder making equipment according to claim 2, characterized in that, The capacity of the small material tank is not less than the furnace capacity of the medium-frequency furnace.

8. The gas atomization powder making equipment according to claim 5, characterized in that, It also includes a dust collector connected to the cyclone separator.

9. The gas atomization powder making equipment according to claim 8, characterized in that, It also includes a fan connected to the dust collector.

10. The gas atomization powder making equipment according to claim 1, characterized in that, It also includes an intermediate package connected to the feed inlet of the atomizing tower.

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