Uniform material distribution device of electric arc furnace

Abstract

The uniform material distribution device comprises a feeding hopper and a material distribution assembly, the material distribution assembly comprises a rotating pipe and a material distribution pipe, the rotating pipe is rotationally installed on the electric arc furnace, one end of the rotating pipe communicates with the feeding hopper, the material distribution pipe is arranged at one end and located on the inner side of the electric arc furnace, and a rotating part is arranged on the electric arc furnace; during feeding, materials in the feeding hopper fall to the material distribution pipe through the rotating pipe, the rotating piece drives the rotating pipe to rotate so as to drive the material distribution pipe to rotate, the material distribution pipe rotates to drive the materials to rotate and distribute, and the effects that the materials are distributed in the electric arc furnace in a dispersed mode, and accumulation of the materials in the electric arc furnace is reduced are achieved.

Description

Technical Field

[0001] This application relates to the field of electric arc furnaces, and more particularly to a uniform material distribution device for an electric arc furnace. Background Technology

[0002] An electric arc furnace is an industrial device that uses electrical energy to generate high temperatures through an electric arc for metal smelting and processing. Its core is to generate an electric arc between electrodes and the metal charge (or molten pool), and use the high temperature of the electric arc (up to 3000℃ or more) to melt the metal. Electric arc furnaces are usually fed by direct conveying.

[0003] In related technologies, please refer to the invention patent with announcement number CN107062910B, which discloses an automatic feeding device for smelting metallic magnesium. The device includes a storage hopper installed above an electric arc furnace. An installation ring is connected to the outer wall of the storage hopper, and two supports are vertically installed on the outer wall of the installation ring. A conveying device is installed on the left side of the storage hopper to convey materials into the storage hopper. A pair of openable and closable baffles are symmetrically installed at the bottom of the storage hopper, and a pillar is vertically installed in the middle of the bottom end face of the storage hopper. The device can automatically add materials to the electric arc furnace while opening the top cover of the electric arc furnace. The feeding process is simple and easy to control, and it can also perform preliminary screening of materials to ensure the smelting quality of metallic magnesium.

[0004] In the aforementioned technologies, directly feeding materials into the electric arc furnace can easily lead to uneven accumulation of materials within the furnace, resulting in arc concentration, overheating in some areas, uneven heat distribution, long melting time required for accumulated materials, and low operational efficiency. Utility Model Content

[0005] To address the problem of low melting efficiency caused by concentrated material feeding and accumulation in electric arc furnaces, this application provides a uniform material distribution device for electric arc furnaces.

[0006] The uniform material distribution device for an electric arc furnace provided in this application adopts the following technical solution:

[0007] A uniform material distribution device for an electric arc furnace includes a feeding hopper disposed on the electric arc furnace. A material distribution assembly is disposed on the lower side of the feeding hopper. The material distribution assembly includes a rotating tube and a material distribution tube. The rotating tube is rotatably mounted on the electric arc furnace. One end of the rotating tube is connected to the feeding hopper. The material distribution tube is disposed at the end of the rotating tube opposite to the feeding hopper and located inside the electric arc furnace. A rotating component for driving the rotating tube to rotate is disposed on the electric arc furnace.

[0008] By adopting the above technical solution, during feeding, the material in the feed hopper falls from the rotating pipe to the distribution pipe. The rotating component drives the rotating pipe to rotate, which in turn drives the distribution pipe to rotate. The rotation of the distribution pipe causes the material to rotate and be distributed, thus dispersing the material in the electric arc furnace and reducing the probability of the material accumulating in one place in the electric arc furnace.

[0009] Optionally, the rotating component includes a motor, a first sprocket, and a chain. The motor is mounted on the electric arc furnace, and a second sprocket is coaxially mounted on the outer peripheral wall of the rotating tube. The first sprocket is mounted on the output shaft of the motor, and the chain is sleeved on the first sprocket and the second sprocket.

[0010] By adopting the above technical solution, the motor drives the first sprocket to rotate, and the first sprocket drives the second sprocket to rotate via the chain, which in turn drives the rotating tube to rotate. The rotating tube is driven to rotate while feeding, making the driving operation convenient. The motor is placed to the side and the chain drive reduces the impact of high temperature on the transmission.

[0011] Optionally, two feeding tubes are provided and distributed relative to each other. The end of the feeding tube opposite to the rotating tube is provided with a discharge port, and the end of the feeding tube opposite to the rotating tube is inclined downward.

[0012] By adopting the above technical solution, the rotating tube distributes the material to the material distribution tubes on both sides, and the material is distributed into the electric arc furnace through the outlet of the material distribution tube. The material distribution tubes on both sides distribute the material synchronously and evenly.

[0013] Optionally, a through-hole is provided on the peripheral wall of the fabric tube. The through-hole is located on the downward side of the fabric tube, and there are several through-holes distributed along the length of the fabric tube.

[0014] By adopting the above technical solution, during material feeding, the material is conveyed and distributed through the material distribution pipe, and at the same time, it falls through the material discharge hole of the material distribution pipe, which further improves the uniformity of material distribution.

[0015] Optionally, the bottom of the feed hopper is provided with a feed pipe communicating with the feed hopper. The feed pipe is coaxially distributed and rotatably connected with the rotating pipe. A sealing plate is rotatably installed inside the feed pipe. The sealing plate closes the cross section of the feed pipe. A rotating motor that drives the sealing plate to rotate is provided on the feed pipe.

[0016] By adopting the above technical solution, the rotating motor drives the sealing plate to rotate until the feed pipe opens and feeds material. By adjusting the rotation angle of the sealing plate, the feeding speed of the feed pipe is adjusted, thereby adjusting the material distribution speed into the electric arc furnace.

[0017] Optionally, a guide block is provided at the bottom of the feed pipe, and the guide block has inclined guide surfaces on its two opposite sides.

[0018] By adopting the above technical solution, the material is distributed along the inclined guide surface of the guide block, resulting in uniform distribution and reducing the accumulation of material in the feed pipe.

[0019] Optionally, one end of the fabric tube is provided with a feed inlet, the fabric tube is connected to the rotating tube at the feed inlet, and the bottom of the guide block is attached to the end of the fabric tube at the feed inlet.

[0020] By adopting the above technical solution, when rotating, the bottom of the guide block scrapes off the material remaining on the end of the feed inlet of the feeding pipe, reducing the accumulation of material on the top of the feeding pipe.

[0021] Optionally, a bonding ring is slidably installed inside the feed hopper, the side wall of the bonding ring is fitted with the inner side wall of the feed hopper, and a pull rod is provided on the feed hopper, one end of the pull rod being connected to one side of the bonding ring.

[0022] By adopting the above technical solution, pulling the lever drives the sticking ring to move, and the sticking ring scrapes the material off the inner wall of the feed hopper, reducing the accumulation of material on the wall inside the feed hopper.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. During feeding, the material in the feed hopper falls from the rotating tube to the distribution tube. The rotating component drives the rotating tube to rotate, which in turn drives the distribution tube to rotate. The rotation of the distribution tube causes the material to rotate and be distributed, thus distributing the material evenly within the electric arc furnace and reducing the probability of material accumulating in one place.

[0025] 2. The material is distributed along the inclined guide surface of the guide block, ensuring uniform distribution and reducing material accumulation in the feed pipe;

[0026] 3. Pulling the lever moves the sticking ring, which scrapes the material off the inner wall of the feed hopper, reducing the accumulation of material on the wall inside the feed hopper. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of this application.

[0028] Figure 2 This is a cross-sectional view along the axis of the feed tube in this application.

[0029] Figure 3 This is a cross-sectional structural diagram of the inner side of the feed hopper in this application.

[0030] Figure 4 This is a cross-sectional structural diagram of the feed pipe and rotating pipe of this application located at the guide block.

[0031] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0032] Reference numerals in the attached drawings: 1. Electric arc furnace; 11. Support frame; 2. Feed hopper; 21. Feed pipe; 211. Sealing plate; 212. Rotating motor; 213. Guide block; 214. Guide surface; 22. Adhesive ring; 23. Tie rod; 3. Rotating pipe; 4. Distributing pipe; 41. Discharge port; 42. Feed port; 43. Discharge hole; 5. Rotating component; 51. Motor; 52. First sprocket; 53. Chain; 54. Second sprocket. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] This application discloses a uniform material distribution device for an electric arc furnace 1, referring to... Figure 1 and Figure 2 The electric arc furnace 1 includes a feeding hopper 2, a support frame 11 is provided on the top of the electric arc furnace 1, the feeding hopper 2 is vertically provided on the support frame 11, the bottom of the feeding hopper 2 is provided with a feeding pipe 21 communicating with the feeding hopper 2, and a material distribution assembly is provided on the electric arc furnace 1. The material distribution assembly includes a rotating pipe 3 and a material distribution pipe 4. The rotating pipe 3 is rotatably installed on the electric arc furnace 1. The rotating pipe 3 is vertically provided. The upper end of the rotating pipe 3 is located on the outside of the electric arc furnace 1, and the lower end of the rotating pipe 3 is located on the inside of the electric arc furnace 1.

[0035] Reference Figure 1 and Figure 2 The feed pipe 21 is coaxially inserted through the upper end of the rotating pipe 3 and rotatably connected to it. The distribution pipe 4 is located at the lower end of the rotating pipe 3 and inside the electric arc furnace 1. The electric arc furnace 1 is equipped with a rotating component 5. During feeding, the material in the feed hopper 2 falls from the rotating pipe 3 to the distribution pipe 4. The rotating component 5 drives the rotating pipe 3 to rotate, which in turn drives the distribution pipe 4 to rotate. The rotation of the distribution pipe 4 causes the material to rotate and be distributed. The material is dispersed and distributed in the electric arc furnace 1, reducing the probability of material accumulating in one place in the electric arc furnace 1.

[0036] Reference Figure 1 and Figure 2 A sealing plate 211 is rotatably installed inside the feed pipe 21, sealing the cross-section of the feed pipe 21. A rotary motor 212 is installed on the feed pipe 21, and the rotation shaft of the sealing plate 211 is connected to the output shaft of the rotary motor 212. The rotary motor 212 drives the sealing plate 211 to rotate until the feed pipe 21 opens for feeding. By adjusting the rotation angle of the sealing plate 211, the feeding speed of the feed pipe 21 is adjusted, thereby adjusting the material distribution speed into the electric arc furnace 1.

[0037] Reference Figure 1 and Figure 2 The rotating component 5 includes a motor 51, a first sprocket 52, and a chain 53. A second sprocket 54 is coaxially fixed to the outer peripheral wall of the rotating tube 3. The motor 51 is vertically upward and mounted on one side of the electric arc furnace 1. The first sprocket 52 is coaxially fixed to the output shaft of the motor 51. The chain 53 is sleeved on the first sprocket 52 and the second sprocket 54. The motor 51 drives the first sprocket 52 to rotate, and the first sprocket 52 drives the second sprocket 54 to rotate via the chain 53, thereby driving the rotating tube 3 to rotate. The rotating tube 3 is driven to rotate simultaneously with the feeding process. The motor 51 is positioned to the side and the chain 53 drives the transmission, reducing the impact of high temperature on the transmission.

[0038] Reference Figure 2 and Figure 3 A guide block 213 is horizontally arranged at the bottom of the feed pipe 21. The guide block 213 is distributed along the diameter of the feed pipe 21 cross-section. The guide block 213 has inclined guide surfaces 214 on opposite sides in the vertical direction. The cross-section of the guide block 213 is triangular. The material is distributed evenly along the inclined guide surfaces 214 of the guide block 213, reducing the accumulation of material in the feed pipe 21.

[0039] Reference Figure 2 and Figure 4 There are two feeding pipes 4, which are distributed opposite to each other. The end of the feeding pipe 4 away from the rotating pipe 3 is provided with a discharge port 41. The end of the feeding pipe 4 away from the rotating pipe 3 is inclined downward. The rotating pipe 3 distributes the material to the feeding pipes 4 on both sides. The material is fed into the electric arc furnace 1 through the discharge port 41 of the feeding pipe 4. The feeding pipes 4 on both sides feed the material synchronously and evenly.

[0040] Reference Figure 2 and Figure 4 The feeding tube 4 has an inlet 42 at its upward-facing end, which connects to the rotating tube 3. One side of the bottom of the guide block 213 is attached to the end of the feeding tube 4 at the inlet 42. When rotating, the bottom of the guide block 213 scrapes off the material remaining at the end of the feeding tube 4 at the inlet 42, reducing the accumulation of material at the top of the feeding tube 4.

[0041] Reference Figure 2 and Figure 4 The fabric distribution tube 4 has through-holes 43 on its peripheral wall. The through-holes 43 are located on the downward-facing side of the fabric distribution tube 4, and there are several through-holes 43 distributed along the length of the fabric distribution tube 4. During feeding, the material is conveyed through the fabric distribution tube 4 and simultaneously falls through the through-holes 43 of the fabric distribution tube 4, further improving the uniformity of the fabric distribution.

[0042] Reference Figure 2 and Figure 3A retaining ring 22 is installed inside the feed hopper 2. The circumferential sidewall of the retaining ring 22 is attached to the inner circumferential sidewall of the feed hopper 2. The retaining ring 22 is slidably connected to the feed hopper 2 in the vertical direction. A pull rod 23 is slidably installed on the feed hopper 2 in the vertical direction. The upper end of the pull rod 23 is located on the outer side of the feed hopper 2, and the lower end of the pull rod 23 is connected to one side of the retaining ring 22. Pulling the pull rod 23 moves the retaining ring 22, which scrapes the material off the inner sidewall of the feed hopper 2, reducing the accumulation of material on the wall inside the feed hopper 2.

[0043] The implementation principle of a uniform material distribution device for an electric arc furnace according to an embodiment of this application is as follows: When feeding, the material in the feed hopper 2 falls from the rotating tube 3 to the material distribution tube 4. The motor 51 drives the rotating tube 3 to rotate via the chain 53, which in turn drives the material distribution tube 4 to rotate. The rotation of the material distribution tube 4 causes the material to rotate and be distributed. The material is distributed in the electric arc furnace 1, reducing the probability of the material accumulating in one place in the electric arc furnace 1.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A uniform material distribution device for an electric arc furnace, comprising a feeding hopper (2), the feeding hopper (2) being disposed on the electric arc furnace (1), and a material distribution assembly being disposed on the lower side of the feeding hopper (2), characterized in that: The fabric assembly includes a rotating tube (3) and a fabric tube (4). The rotating tube (3) is rotatably mounted on the electric arc furnace (1). One end of the rotating tube (3) is connected to the feed hopper (2). The fabric tube (4) is located at the end of the rotating tube (3) away from the feed hopper (2) and inside the electric arc furnace (1). The electric arc furnace (1) is provided with a rotating component (5) for driving the rotating tube (3) to rotate.

2. The uniform material distribution device for an electric arc furnace according to claim 1, characterized in that: The rotating component (5) includes a motor (51), a first sprocket (52), and a chain (53). The motor (51) is mounted on the electric arc furnace (1). A second sprocket (54) is coaxially mounted on the outer peripheral wall of the rotating tube (3). The first sprocket (52) is mounted on the output shaft of the motor (51). The chain (53) is sleeved on the first sprocket (52) and the second sprocket (54).

3. The uniform material distribution device for an electric arc furnace according to claim 1, characterized in that: There are two cloth pipes (4) that are distributed relative to each other. The cloth pipe (4) has a discharge port (41) at the end away from the rotating pipe (3). The end of the cloth pipe (4) away from the rotating pipe (3) is inclined downward.

4. The uniform material distribution device for an electric arc furnace according to claim 1, characterized in that: The fabric tube (4) has a through-hole (43) on its peripheral wall. The through-hole (43) is located on the downward side of the fabric tube (4). There are several through-holes (43) and they are distributed along the length of the fabric tube (4).

5. The uniform material distribution device for an electric arc furnace according to claim 1, characterized in that: The bottom of the feed hopper (2) is provided with a feed pipe (21) that communicates with the feed hopper (2). The feed pipe (21) is coaxially distributed and rotatably connected with the rotating pipe (3). A sealing plate (211) is rotatably installed inside the feed pipe (21). The sealing plate (211) closes the cross section of the feed pipe (21) for feeding. A rotating motor (212) that drives the sealing plate (211) to rotate is provided on the feed pipe (21).

6. The uniform material distribution device for an electric arc furnace according to claim 5, characterized in that: The bottom of the feed pipe (21) is provided with a guide block (213), and the guide block (213) has inclined guide surfaces (214) on its two opposite sides.

7. The uniform material distribution device for an electric arc furnace according to claim 6, characterized in that: The fabric tube (4) has a feed inlet (42) at one end. The fabric tube (4) is connected to the rotating tube (3) at the feed inlet (42). The bottom of the guide block (213) is attached to the end of the fabric tube (4) at the feed inlet (42).

8. The uniform material distribution device for an electric arc furnace according to claim 1, characterized in that: A sealing ring (22) is slidably installed inside the feed hopper (2). The side wall of the sealing ring (22) is attached to the inner side wall of the feed hopper (2). A pull rod (23) is provided on the feed hopper (2). One end of the pull rod (23) is connected to one side of the sealing ring (22).

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