Quantitative slag adding device of electroslag remelting furnace

Abstract

The utility model discloses a quantitative slag adding device for an electroslag remelting furnace, which relates to the technical field of electroslag remelting furnaces, and comprises a support table, a first slag adding device, a second slag adding device and a slag adding device, the feeding assembly is used for conveying metal slag into the stock bin; the quantitative material conveying assembly comprises a first material guiding hopper, a discharging pipe, a rotary drum and a first material conveying pipe, the first material guiding hopper is arranged in the material bin, the discharging pipe is arranged at the bottom of the first material guiding hopper in a communicating mode, and the rotary drum is rotationally arranged in the discharging pipe; metal slag in the first material guide hopper falls into the groove formed in the rotary drum, the groove rotates along with the rotary drum when the rotary drum rotates, the size of the groove is fixed so as to ensure that the amount of slag in the groove is fixed, and the amount of the metal slag falling into the groove is determined by calculating the number of times of rotation of the rotary drum. Furthermore, the metal slag can be quantitatively conveyed into the electroslag remelting furnace, so that the quality of a smelted steel ingot is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electroslag remelting furnaces, in particular to a quantitative slag adding device for electroslag remelting furnaces. Background Art

[0002] The electroslag remelting furnace is composed of electrodes, a molten metal pool, a slag pool, a water-cooled crystallizer and a furnace body. During use, the electroslag is first placed in the crystallizer, and then the end of the electrode rod chuck is inserted into the molten slag. After that, the electrode rod is energized to melt the metal slag in the slag pool. At this time, the molten liquid metal passes through the slag pool and falls into the crystallizer, and is simultaneously cooled by water to form a steel ingot.

[0003] For example, the utility model patent with announcement number CN220352206U discloses a slag feeding device for an electroslag remelting furnace, which conveys metal slag through a conveyor belt, crushes the metal slag through a crushing roller, and finally conveys the metal slag from a guide hopper into the interior of the electroslag remelting furnace.

[0004] However, when the utility model is in use, it lacks a component for quantitatively conveying the metal slag, which makes it difficult to determine the amount of slag conveyed to the electroslag remelting furnace, thereby affecting the quality of the smelted steel ingots. Utility Model Content

[0005] In response to the deficiencies of the prior art, the utility model provides a quantitative slag adding device for an electroslag remelting furnace, in which the metal slag in the first guide hopper falls into a groove provided on the rotating drum. When the drum rotates, the groove also rotates together. The size of the groove is fixed to ensure a certain amount of slag in the groove. The amount of metal slag falling in the groove is determined by calculating the number of rotations of the rotating drum, and the metal slag can be quantitatively transported to the electroslag remelting furnace to ensure the quality of the smelted steel ingots.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a quantitative slag feeding device for an electroslag remelting furnace, comprising: a support platform, on which a hopper and a first conveying drum are provided; a loading assembly, wherein the loading assembly is used to convey metal slag into the hopper; a quantitative conveying assembly, wherein the quantitative conveying assembly includes a first guide hopper, a discharge pipe, a rotating drum and a first conveying pipe, wherein the first guide hopper is arranged in the hopper, the discharge pipe is connected and arranged at the bottom of the first guide hopper, the rotating drum is rotatably arranged in the discharge pipe, the side wall of the discharge pipe has an arc section matching the shape of the rotating drum, and the rotating drum is provided with a plurality of grooves, the first conveying pipe is inclined and the high end side is connected to the bottom of the discharge pipe, and the bottom end side is connected to the first conveying drum; a transfer assembly, wherein the transfer assembly is arranged in the first conveying drum for conveying metal slag to the electroslag remelting furnace, and a second conveying pipe is inclined downward near the top of the first conveying drum.

[0007] Preferably, the feeding assembly includes: a third feeding barrel, one side of the top of the third feeding barrel is connected to the silo; a second motor, the second motor is arranged at the top of the third feeding barrel; a second spiral conveying blade, the second spiral conveying blade is rotatably arranged in the third feeding barrel and one end is connected to the output end of the second motor; and a feeding hopper, the feeding hopper is arranged at the bottom of the third feeding barrel.

[0008] Preferably, a pair of crushing rollers are rotatably provided in the silo and above the first guide hopper, and a second guide hopper is provided in the silo and above the pair of crushing rollers.

[0009] Preferably, the transfer assembly includes: a first motor, which is arranged at the bottom of the support platform; a first spiral conveying blade, which is vertically and rotatably arranged in the first feeding barrel, and the bottom of the first spiral conveying blade is connected to the output end of the first motor.

[0010] Preferably, a second feed cylinder is rotatably provided on the top of the first feed cylinder, the second feed pipe is tilted downwardly on the second feed cylinder, a third motor is provided on the top inner wall of the silo, the output end of the third motor passes through the top wall of the silo and is provided with a gear, a gear ring is provided on the outer wall of the second feed cylinder, and the gear is meshed with the gear ring.

[0011] The utility model provides a quantitative slag adding device for an electroslag remelting furnace, which has the following beneficial effects:

[0012] 1. The utility model allows the metal slag in the first guide hopper to fall into the grooves provided on the rotating drum. When the drum rotates, the grooves also rotate together. The size of the grooves is fixed to ensure a certain amount of slag in the grooves. The amount of metal slag falling into the grooves is determined by counting the number of rotations of the rotating drum, and the metal slag can be quantitatively transported to the electroslag remelting furnace to ensure the quality of the smelted steel ingots.

[0013] 2. In the present invention, when the output end of the third motor rotates, it drives the connected gear to rotate, the gear drives the meshing ring gear to rotate, the ring gear drives the connected second feed cylinder to rotate, and the second feed cylinder drives the second feed pipe to rotate, so that after the metal slag is transported to the electroslag remelting furnace, the position of the second feed pipe is adjusted so that the second feed pipe is moved away from the top of the electroslag remelting furnace to prevent the second feed pipe from affecting the subsequent processing operations of the electroslag remelting furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Enlarged schematic diagram of part A.

[0016] In the figure: 1. Support platform; 2. Material silo; 3. First material guide hopper; 4. Discharge pipe; 5. Rotating drum; 5-1. Groove; 6. First feed pipe; 7. First feed cylinder; 8. First motor; 9. First spiral conveyor blade; 10. Second feed cylinder; 11. Second feed pipe; 12. Third feed cylinder; 13. Second motor; 14. Second spiral conveyor blade; 15. Upper hopper; 16. Second material guide hopper; 17. Crushing roller; 18. Third motor; 19. Gear; 20. Gear ring; 21. Electroslag remelting furnace. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-2 The material discharging opening 12 is connected with the material discharging opening 14 by the feed conveyor 2, and the feed conveyor 2 is connected with the material discharging opening 14 by the feed conveyor 2.

[0019] The slag is transported to the hopper 2 by the loading assembly, and the slag falls into the first guide hopper 3 in the hopper 2. A motor capable of driving the drum 5 to rotate is provided on the outer wall of the hopper 2. The motor is started to drive the drum 5 to rotate, and the slag in the first guide hopper 3 falls into the groove 5-1 provided on the drum 5. When the drum rotates, the groove 5-1 also rotates together. The size of the groove 5-1 is fixed, thereby ensuring that the amount of slag in the groove 5-1 is constant. When the groove 5-1 rotates to the bottom of the discharge pipe 4, the slag in the groove 5-1 slides into the first feed barrel 7 through the first feed pipe 6. The number of times the drum 5 rotates is determined to determine the number of times the slag falls in the groove 5-1, and then the amount of slag transported to the first feed barrel 7 is determined. The metal slag is lifted to the top of the first feed barrel 7 by the transfer assembly in the first feed barrel 7, and then transported to the electroslag remelting furnace 21 through the second feed pipe 11 arranged obliquely downward.

[0020] As an embodiment of the present utility model, the feeding assembly includes: a third feeding barrel 12, one side of the top of the third feeding barrel 12 is connected to the silo 2; a second motor 13, the second motor 13 is arranged at the top of the third feeding barrel 12; a second spiral conveying blade 14, the second spiral conveying blade 14 is rotatably arranged in the third feeding barrel 12 and one end is connected to the output end of the second motor 13; and a feeding hopper 15, the feeding hopper 15 is arranged at the bottom of the third feeding barrel 12.

[0021] In this embodiment, the metal slag is first conveyed into the upper hopper 15, and the second motor 13 arranged on the top of the third feeding tube 12 is started. The output end of the second motor 13 drives the second spiral conveying blade 14 to rotate, and the second spiral conveying blade 14 conveys the metal slag in the upper hopper 15 to the silo 2 through the third feeding tube 12.

[0022] As an embodiment of the present invention, a pair of crushing rollers 17 are rotatably provided in the silo 2 and above the first guide hopper 3 , and a second guide hopper 16 is provided in the silo 2 and above the pair of crushing rollers 17 .

[0023] In this embodiment, the metal slag entering the silo 2 falls into the second guide hopper 16, and falls from the discharge port of the second guide hopper 16 to between the pair of crushing rollers 17. A motor capable of driving the pair of crushing rollers 17 to rotate relative to each other is provided on the outer wall of the silo 2 (gears 19 meshing with each other may be provided on the roller shafts of the pair of crushing rollers 17, and when the motor drives one crushing roller 17 to rotate, the other crushing roller 17 is driven to rotate relative to each other through the gear 19). After the pair of crushing rollers 17 crush the metal slag, the slag falls into the first guide hopper 3 below.

[0024] As an embodiment of the present utility model, the transfer assembly includes: a first motor 8, which is arranged at the bottom of the support platform 1; a first spiral conveying blade 9, which is vertically and rotatably arranged in the first feeding barrel 7, and the bottom of the first spiral conveying blade 9 is connected to the output end of the first motor 8.

[0025] In this embodiment, when the output end of the first motor 8 rotates, the output end of the first motor 8 drives the first spiral conveying blade 9 to rotate, and the rotating first spiral conveying blade 9 conveys the metal slag at the bottom of the first feeding barrel 7 vertically upward, and then conveys it to the electroslag remelting furnace 21 through the second feeding pipe 11.

[0026] As an embodiment of the present utility model, a second feed cylinder 10 is rotatably provided on the top of the first feed cylinder 7, a second feed pipe 11 is tilted downwardly provided on the second feed cylinder 10, a third motor 18 is provided on the top inner wall of the silo 2, the output end of the third motor 18 passes through the top wall of the silo 2 and is provided with a gear 19, a ring gear 20 is provided on the outer wall of the second feed cylinder 10, and the gear 19 is meshed with the ring gear 20.

[0027] In this embodiment, when the output end of the third motor 18 rotates, it drives the connected gear 19 to rotate, the gear 19 drives the meshing ring gear 20 to rotate, the ring gear 20 drives the connected second feed barrel 10 to rotate, and the second feed barrel 10 drives the second feed pipe 11 to rotate, so that after the metal slag is transported to the electroslag remelting furnace 21, the position of the second feed pipe 11 is adjusted so that the second feed pipe 11 is moved away from the top of the electroslag remelting furnace 21. A stepped groove is provided on the top of the first feed barrel 7, and a groove 5-1 is provided on the inner wall of the bottom of the second feed barrel 10, so that the top of the first feed barrel 7 is embedded in the groove 5-1, and the bottom of the second feed barrel 10 is embedded in the stepped groove. A friction reducing device such as a plane bearing can be set between the first feed barrel 7 and the second feed barrel 10 to ensure smooth and stable rotation of the second feed barrel 10.

[0028] Through the use of wires by those skilled in the art, all electrical components in this case are connected to their corresponding power supplies, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, in which the electrical components are electrically connected in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0029] The working principle and use process of the present invention are as follows: when in use, the metal slag is transported to the upper hopper 15, the second motor 13 drives the second spiral conveying blade 14 to rotate to transport the metal slag in the upper hopper 15 to the silo 2, and drops into the second guide hopper 16, the metal slag falls from the discharge port of the second guide hopper 16 onto a pair of crushing rollers 17 for crushing, the crushed metal slag falls into the first guide hopper 3, and then falls into the discharge pipe 4, the slag at the top of the discharge pipe 4 falls into the groove 5-1 provided on the rotating drum 5, the rotating drum 5 rotates to rotate the groove 5-1 to the bottom of the discharge pipe 4, the metal slag in the groove 5-1 falls into the first conveying pipe 6, the first motor 8 drives the second A spiral conveying blade 9 lifts the metal slag upward, and the slag is then conveyed to the electroslag remelting furnace 21 through the second conveying pipe 11. After the conveying is completed, the second conveying pipe 11 is driven to rotate by the third motor 18 to remove the second conveying pipe 11 from the top of the electroslag remelting furnace 21. The utility model allows the metal slag in the first guide hopper 3 to fall into the groove 5-1 opened on the rotating drum 5. When the drum rotates, the groove 5-1 also rotates together. The size of the groove 5-1 is fixed to ensure a certain amount of slag in the groove 5-1. The amount of metal slag falling in the groove 5-1 is determined by calculating the number of rotations of the rotating drum 5, and then the metal slag can be quantitatively conveyed to the electroslag remelting furnace 21 to ensure the quality of the smelted steel ingots.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative slag feeding device for an electroslag remelting furnace, characterized in that: include: A support platform (1), wherein a material bin (2) and a first material delivery cylinder (7) are provided on the support platform (1); A feeding assembly, the feeding assembly being used to convey metal slag into the silo (2); A quantitative feeding assembly, comprising a first material guide hopper (3), a material discharge pipe (4), a rotating drum (5) and a first material delivery pipe (6); the first material guide hopper (3) is arranged in a silo (2); the material discharge pipe (4) is connected to the bottom of the first material guide hopper (3); the rotating drum (5) is rotatably arranged in the material discharge pipe (4); the side wall of the material discharge pipe (4) has an arc segment matching the shape of the rotating drum (5); a plurality of grooves (5-1) are provided on the rotating drum (5); the first material delivery pipe (6) is arranged obliquely and the high end side is connected to the bottom of the material discharge pipe (4), and the bottom end side is connected to the first material delivery drum (7); A transfer assembly is provided in a first conveying barrel (7) for conveying metal slag to an electroslag remelting furnace (21); a second conveying pipe (11) is provided at a position inclined downward near the top of the first conveying barrel (7).

2. The device for quantitatively adding slag to an electroslag remelting furnace according to claim 1, characterized in that: The feeding assembly comprises: A third feeding cylinder (12), wherein one side of the top of the third feeding cylinder (12) is in communication with the silo (2); a second motor (13), the second motor (13) being arranged on top of the third feeding cylinder (12); a second spiral conveying blade (14), the second spiral conveying blade (14) being rotatably disposed in the third feeding cylinder (12) and having one end connected to the output end of the second motor (13); An upper hopper (15) is provided at the bottom of the third feeding cylinder (12).

3. The device for quantitatively adding slag to an electroslag remelting furnace according to claim 1, characterized in that: A pair of crushing rollers (17) are rotatably arranged in the silo (2) and above the first guide hopper (3); a second guide hopper (16) is rotatably arranged in the silo (2) and above the pair of crushing rollers (17).

4. The device for quantitatively adding slag to an electroslag remelting furnace according to claim 1, characterized in that: The transport assembly comprises: A first motor (8), the first motor (8) being arranged at the bottom of the support platform (1); A first spiral conveying blade (9) is vertically and rotatably arranged in the first feeding cylinder (7), and the bottom of the first spiral conveying blade (9) is connected to the output end of the first motor (8).

5. The device for quantitatively adding slag to an electroslag remelting furnace according to claim 1, characterized in that: A second feeding cylinder (10) is rotatably provided on the top of the first feeding cylinder (7), and the second feeding pipe (11) is tilted downwardly provided on the second feeding cylinder (10). A third motor (18) is provided on the top inner wall of the silo (2), and the output end of the third motor (18) passes through the top wall of the silo (2) and is provided with a gear (19). A gear ring (20) is provided on the outer wall of the second feeding cylinder (10), and the gear (19) is meshedly connected with the gear ring (20).

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