A feed device for a refining furnace

Abstract

The application relates to a feeding device of a refining furnace, which comprises a feeding box arranged on a furnace cover of the refining furnace, a cover plate rotatably arranged on the top of the feeding box, a plurality of feeding grooves separated in the feeding box, a sealing plate rotatably arranged at the bottom of each feeding groove, a closing element arranged on the feeding box and used for limiting the rotation of the sealing plate, and a limiting mechanism arranged on the feeding box and connected with the sealing plate; before work, the limiting mechanism abuts against the sealing plate to close each feeding groove, the cover plate is opened to accommodate different materials into the plurality of feeding grooves of the feeding box, and then the cover plate is closed; when feeding is needed, the closing element drives the sealing plate to open the feeding, the limiting mechanism limits the position of the sealing plate, the opening and closing state of the sealing plate is stable, the application effectively maintains the sealing environment in the furnace body during feeding, and the cleanliness of finished products is guaranteed.

Description

Technical Field

[0001] This application relates to the field of refining furnaces, and more particularly to a feeding device for a refining furnace. Background Technology

[0002] Refining furnaces are smelting equipment used in the thermal processing industry for final deoxidation, alloying, and impurity removal of molten steel, covering both ferrous and non-ferrous metallurgical fields.

[0003] A refining furnace typically includes a furnace body, a heating system, a feeding hopper, and a control system. The workflow involves transporting the feed material into the furnace body, sealing the electrode furnace cover, heating the material, and then performing primary refining, refining, and soft blowing processes. Once the process is confirmed to meet the standards, the next step is carried out.

[0004] During the refining process, various materials need to be added into the furnace through the charging hopper to precisely adjust the composition of the molten steel to the target value. However, adding materials directly through the charging hopper in a non-sealed manner will damage the sealed environment inside the furnace and affect the cleanliness of the finished product. Utility Model Content

[0005] To address the problem that non-sealed feeding disrupts the sealed environment within the furnace, affecting the cleanliness of the finished product, this application provides a feeding device for a refining furnace.

[0006] The feeding device for a refining furnace provided in this application adopts the following technical solution: A feeding device for a refining furnace includes a feeding box, which is disposed on the furnace cover and communicates with the interior of the furnace body. A cover plate for limiting the opening of the feeding box is rotatably installed on the top of the feeding box. The interior of the feeding box is divided into multiple evenly distributed feeding slots. A sealing plate for closing the feeding slot is rotatably installed at the bottom of each feeding slot. A sealing member for driving the sealing plate to rotate is provided on the feeding box. The sealing member is used to open and close the feeding slot. A limiting mechanism connected to the sealing plate is provided on the feeding box. The limiting mechanism is used to limit the position of the sealing plate.

[0007] By adopting the above technical solution, before operation, the limiting mechanism will press the sealing plate against and seal each feeding slot. The cover plate will open to accommodate different materials into the multiple feeding slots of the feeding box. Then the cover plate will be closed. When feeding is required, the sealing component will drive the sealing plate to open for feeding. The limiting mechanism will limit the position of the sealing plate to ensure the stability of the opening and closing state of the sealing plate. During feeding, the sealed environment inside the furnace will be effectively maintained, which is conducive to ensuring the cleanliness of the finished product.

[0008] Optionally, the limiting mechanism includes a limiting rod and a connecting rod. The limiting rod is slidably installed at the feed trough, and the connecting rod is rotatably installed on one side of the sealing plate. The end of the connecting rod away from the sealing plate is rotatably connected to one end of the limiting rod. The top of the cover plate is provided with a limiting member for limiting the position of the limiting rod.

[0009] By adopting the above technical solution, when the sealing plate is opened, the sealing plate is driven by gravity to move the connecting rod and then the limiting rod. The limiting component limits the position of the limiting rod, controls the sliding end point of the limiting rod, and then stabilizes the final position of the sealing plate through the connecting rod, reduces the deviation of the sealing plate, and ensures the accuracy of the sealing plate action.

[0010] Optionally, the sealing component includes a sealing cover and an abutment plate. The sealing cover is disposed outside the feed box, and the abutment plate is slidably installed inside the feed box. One side of the sealing plate abuts against one side of the abutment plate, and the sealing cover is provided with a driving component for driving the abutment plate to slide.

[0011] By adopting the above technical solution, the sealing cover protects the outside of the feeding box, reducing the entry of external impurities into the feeding box. The driving component drives the abutment plate to slide, and the abutment plate fixes the position of the sealing plate by abutting with it. At this time, the feeding chute is closed. When the driving component drives the abutment plate to move to separate from the sealing plate, the sealing plate opens under gravity, and the feeding chute opens to feed. The abutment cooperation makes the opening and closing operation of the feeding chute convenient.

[0012] Optionally, the driving component includes a driving cylinder, which is disposed on one side of the enclosed cover. One end of the piston rod of the driving cylinder is driven in a direction toward or away from the feed box, and one side of the abutment plate is connected to one end of the piston rod of the driving cylinder.

[0013] By adopting the above technical solution, the piston rod of the driving cylinder extends and retracts to drive the contact plate to slide in the direction toward or away from the feed box, thereby controlling the opening and closing of the sealing plate and ensuring a stable sealing effect of the feed trough.

[0014] Optionally, the limiting component includes a limiting strip and a stop block. The limiting strip is slidably mounted on the cover plate. One end of the limiting strip is detachably connected to one end of the limiting rod. The stop block is disposed at the end of the limiting strip away from the limiting rod. The cover plate is provided with a stop strip. When the limiting strip slides, one side of the stop block abuts against one side of the stop strip.

[0015] By adopting the above technical solution, when the cover is closed, the limiting strip and the limiting rod are connected. When the limiting strip slides, the stop block and the stop strip abut against each other to limit the maximum sliding distance of the limiting strip. In this way, the limiting strip controls the sliding range of the limiting rod, reducing the problem of excessive or insufficient opening and closing of the cover caused by excessive sliding of the limiting rod.

[0016] Optionally, a threaded sleeve is rotatably mounted on one end of the limiting strip, and a threaded segment is provided on one end of the limiting rod, with the threaded sleeve and the threaded segment being threadedly connected.

[0017] By adopting the above technical solution, the threaded connection between the threaded sleeve and the threaded section enables the detachable connection between the limiting strip and the limiting rod, which facilitates the separation of the limiting strip and the limiting rod when material needs to be added, at which point the cover plate opens to add material.

[0018] Optionally, an adjusting screw is threadedly connected to the end of the limiting strip opposite to the limiting rod, and the stop block is disposed at the end of the adjusting screw opposite to the limiting strip.

[0019] By adopting the above technical solution, rotating the adjusting screw changes the length of the adjusting screw extending from the limiting strip, thereby adjusting the distance between the stop block and the limiting strip, and realizing the fine adjustment of the stop block position; when the stop block and the limiting strip abut, the fine adjustment of the stop block position changes the sliding endpoint of the limiting strip, indirectly adjusting the sliding range of the limiting rod, thereby controlling the opening degree of each sealing plate, which facilitates the control of the addition ratio when adding different materials.

[0020] Optionally, the stop block has a buffer pad on one side facing the limiting strip.

[0021] By adopting the above technical solution, the buffer pad plays a buffering role when the block and the strip come into contact, reducing the impact force generated by the collision, reducing wear or deformation of the block or strip due to long-term collision, and extending its service life.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Before operation, the limiting mechanism will press the sealing plate against and seal each feed chute. When feeding, the sealing component drives the sealing plate to open. The limiting mechanism limits the position of the sealing plate to ensure the stability of the opening and closing state of the sealing plate, effectively maintain the sealed environment inside the furnace, and help ensure the cleanliness of the finished product. 2. When the sealing plate is opened, the limiting component limits the position of the limiting rod, controls the sliding end point of the limiting rod, and then stabilizes the final position of the sealing plate through the connecting rod, reducing the deviation of the sealing plate and ensuring the accuracy of the sealing plate action; 3. The enclosure protects the outside of the feed box, reducing the entry of external impurities into the feed box. The drive unit drives the contact plate to contact or separate from the sealing plate, realizing convenient opening and closing of the feed trough. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of this application.

[0024] Figure 2 This is a partial cross-sectional structural diagram of the inside of the feed box in this application.

[0025] Figure 3 This is an exploded structural diagram of the limiting bar and limiting rod of this application.

[0026] 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.

[0027] Reference numerals in the attached drawings: 1. Feed box; 11. Cover plate; 111. Stop bar; 12. Feed chute; 2. Sealing plate; 3. Sealing component; 31. Sealing cover; 32. Abutment plate; 33. Drive cylinder; 4. Limiting mechanism; 41. Limiting rod; 411. Threaded section; 42. Connecting rod; 5. Limiting component; 51. Limiting strip; 511. Threaded sleeve; 512. Adjusting screw; 52. Stop block. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] This application discloses a feeding device for a refining furnace, referring to... Figure 1 The system includes a feed box 1, a cover plate 11, a sealing plate 2, a sealing element 3, and a limiting mechanism 4. The feed box 1 is installed on the furnace cover of the refining furnace and communicates with the interior of the furnace body. The cover plate 11 is rotatably installed on the top of the feed box 1 to close the opening of the feed box 1. The interior of the feed box 1 is divided into four feed troughs 12 that are evenly distributed along the length of the feed box 1. Each feed trough 12 is separated by a partition. The sealing plate 2 is rotatably installed at the bottom of each feed trough 12 to close the feed trough 12. The sealing element 3 is installed on the feed box 1 to control the rotation of the sealing plate 2 to open and close the feed trough 12. The limiting mechanism 4 is installed on the feed box 1 and connected to the sealing plate 2 to limit the position of the sealing plate 2. Before operation, the limiting mechanism 4 presses the sealing plate 2 against and seals each feed trough 12. The cover plate 11 opens to accommodate different materials into the multiple feed troughs 12 of the feed box 1. Then the cover plate 11 is closed. When feeding is required, the sealing member 3 drives the sealing plate 2 to open for feeding. The limiting mechanism 4 limits the position of the sealing plate 2 to ensure that the opening and closing state of the sealing plate 2 is stable. This achieves the effect of effectively maintaining the sealed environment inside the furnace during feeding and ensuring the cleanliness of the finished product.

[0030] Reference Figure 1 and Figure 2The sealing component 3 includes a sealing cover 31 and an abutment plate 32. The sealing cover 31 is located outside the feed box 1 and distributed along the length of the feed box 1, serving a protective function and reducing the entry of external impurities into the feed box 1. One side of the abutment plate 32 is located inside the sealing cover 31. A through hole is provided on the side wall of the feed box 1. The abutment plate 32 is horizontally slidably installed at the through hole of the feed box 1. The downward-facing side of the sealing plate 2 abuts against the upward-facing side of the abutment plate 32. The sealing cover 31 is provided with a driving component for driving the abutment plate 32 to slide. The driving component includes a driving cylinder 33, which is horizontally located on one side of the sealing cover 31. One end of the piston rod of the driving cylinder 33 drives in a direction toward or away from the feed box 1. One side of the abutment plate 32 is connected to one end of the piston rod of the driving cylinder 33. When the piston rod of the drive cylinder 33 extends, the abutment plate 32 abuts against the sealing plate 2, fixing the sealing plate 2, and the feed chute 12 is closed at this time; when the piston rod of the drive cylinder 33 retracts, the abutment plate 32 separates from the sealing plate 2, the sealing plate 2 opens under gravity, and the feed chute 12 opens to feed.

[0031] Reference Figure 1 and Figure 2 The limiting mechanism 4 includes a limiting rod 41 and a connecting rod 42. The limiting rod 41 is slidably installed vertically at the feed trough 12. One end of the connecting rod 42 is rotatably installed on the upward-facing side of the sealing plate 2. The end of the connecting rod 42 away from the sealing plate 2 is rotatably connected to one end of the limiting rod 41. The top of the cover plate 11 is provided with a limiting element 5 for limiting the position of the limiting rod 41. The limiting element 5 includes a limiting strip 51 and a stop block 52. The limiting strip 51 is slidably installed vertically on the cover plate 11. The threaded sleeve 511 rotatably installed at one end of the limiting strip 51 is connected to the threaded section 411 threaded sleeve 511 provided at one end of the limiting rod 41, so that when material needs to be added, the limiting strip 51 can be separated from the limiting rod 41, at which time the cover plate 11 can be opened for material addition.

[0032] Reference Figure 2 and Figure 3 The stop block 52 is located at the end of the limiting strip 51 opposite to the limiting rod 41. The cover plate 11 is provided with baffles 111 distributed along the length of the feed box 1. The limiting strip 51 and the baffles 111 are slidably connected. When the limiting strip 51 slides, one side of the stop block 52 abuts against one side of the baffle 111. A buffer pad is provided on the side of the stop block 52 facing the limiting strip 51, which acts as a buffer when the stop block 52 abuts against the baffle 111, reducing the impact force generated by the collision and minimizing wear or deformation of the stop block 52 or baffle 111 due to long-term collision, thus extending their service life.

[0033] Reference Figure 2 and Figure 3One end of the limiting strip 51, away from the limiting rod 41, is threadedly connected to an adjusting screw 512. A stop block 52 is located at the end of the adjusting screw 512 away from the limiting strip 51. Rotating the adjusting screw 512 changes the length of the adjusting screw 512 extending beyond the limiting strip 51, thereby adjusting the distance between the stop block 52 and the limiting strip 51, achieving fine-tuning of the position of the stop block 52. When the stop block 52 abuts against the limiting strip 111, fine-tuning the position of the stop block 52 can change the sliding endpoint of the limiting strip 51, indirectly adjusting the sliding range of the limiting rod 41, thereby controlling the opening degree of each sealing plate 2, facilitating control of the addition ratio when adding different materials.

[0034] When the sealing plate 2 is opened, the sealing plate 2 is driven by gravity to move the connecting rod 42, which in turn drives the limiting rod 41 to slide. The limiting component 5 limits the position of the limiting rod 41 and controls the sliding end point of the limiting rod 41. In turn, the connecting rod 42 stabilizes the final position of the sealing plate 2, reduces the deviation of the sealing plate 2, and ensures the accurate movement of the sealing plate 2.

[0035] The implementation principle of the feeding device of a refining furnace in this application embodiment is as follows: Before operation, the piston rod of the drive cylinder 33 extends, driving the abutment plate 32 to slide towards the feeding box 1. The abutment plate 32 abuts against the sealing plate 2, fixing the sealing plate 2 and keeping the feeding trough 12 in a closed state. The operator opens the cover plate 11 and adds different materials to the multiple feeding troughs 12 of the feeding box 1 respectively. After the feeding is completed, the cover plate 11 is closed. At this time, the threaded sleeve 511 at one end of the limiting strip 51 is connected to the threaded section 411 threaded sleeve 511 at one end of the limiting rod 41.

[0036] When feeding is required, the piston rod of the drive cylinder 33 retracts, causing the abutment plate 32 to slide away from the feed box 1. The abutment plate 32 separates from the sealing plate 2, and the sealing plate 2 opens under gravity, opening the feed chute 12 and allowing material to enter the furnace body. When the sealing plate 2 opens, gravity causes the connecting rod 42 to rotate, which in turn causes the limiting rod 41 to slide at the feed chute 12, thereby causing the limiting strip 51 to slide. One side of the stop block 52 abuts against one side of the stop strip 111 on the cover plate 11, limiting the maximum sliding distance of the limiting strip 51, thereby controlling the sliding range of the limiting rod 41.

[0037] When feeding is finished, first pull the limit bar 51 to the sealing plate 2 to close the feeding chute 12. At this time, the drive cylinder 33 drives the abutment plate 32 to limit the sealing plate 2, thus completing the feeding operation.

[0038] The operator rotates the adjusting screw 512, which is threaded to the end of the limiting bar 51 away from the limiting rod 41, changing the length of the adjusting screw 512 extending out of the limiting bar 51. This adjusts the distance between the stop block 52 and the limiting bar 51, allowing for fine-tuning of the stop block 52's position. When the stop block 52 abuts against the limiting bar 111, fine-tuning the position of the stop block 52 changes the sliding endpoint of the limiting bar 51, indirectly adjusting the sliding range of the limiting rod 41. This controls the opening degree of each sealing plate 2, facilitating control of the addition ratio when different materials are added.

[0039] 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 feeding device for a refining furnace, comprising a feeding box (1), the feeding box (1) being disposed on the furnace cover of the refining furnace and communicating with the interior of the furnace body, wherein a cover plate (11) for closing the opening of the feeding box (1) is rotatably mounted on the top of the feeding box (1), characterized in that: The feed box (1) is divided into multiple evenly distributed feed slots (12). Each feed slot (12) has a sealing plate (2) rotatably installed at the bottom for closing the feed slot (12). The feed box (1) is provided with a sealing member (3) for restricting the rotation of the sealing plate (2). The sealing member (3) is used to open and close the feed slot (12). The feed box (1) is provided with a limiting mechanism (4) connected to the sealing plate (2). The limiting mechanism (4) is used to limit the position of the sealing plate (2).

2. A feed arrangement for a refining furnace as claimed in claim 1, characterized in that: The limiting mechanism (4) includes a limiting rod (41) and a connecting rod (42). The limiting rod (41) is slidably installed at the feed trough (12). The connecting rod (42) is rotatably installed on one side of the sealing plate (2). The end of the connecting rod (42) away from the sealing plate (2) is rotatably connected to one end of the limiting rod (41). The top of the cover plate (11) is provided with a limiting member (5) for limiting the position of the limiting rod (41).

3. A feed arrangement for a refining furnace as claimed in claim 1, characterized in that: The sealing member (3) includes a sealing cover (31) and an abutment plate (32). The sealing cover (31) is disposed outside the feed box (1). The abutment plate (32) is slidably installed inside the feed box (1). One side of the sealing plate (2) abuts against one side of the abutment plate (32). The sealing cover (31) is provided with a driving member for driving the abutment plate (32) to slide.

4. A feed arrangement for a refining furnace as claimed in claim 3, characterized in that: The driving component includes a driving cylinder (33), which is disposed on one side of the enclosure (31). One end of the piston rod of the driving cylinder (33) is driven in a direction toward or away from the feed box (1). One side of the abutment plate (32) is connected to one end of the piston rod of the driving cylinder (33).

5. A feed arrangement for a refining furnace as claimed in claim 2, characterized in that: The limiting component (5) includes a limiting strip (51) and a stop block (52). The limiting strip (51) is slidably installed on the cover plate (11). One end of the limiting strip (51) is detachably connected to one end of the limiting rod (41). The stop block (52) is located at one end of the limiting strip (51) away from the limiting rod (41). A stop strip (111) is provided on the cover plate (11). When the limiting strip (51) slides, one side of the stop block (52) abuts against one side of the stop strip (111).

6. A feed arrangement for a refining furnace as claimed in claim 5, characterized in that: One end of the limiting bar (51) is rotatably fitted with a threaded sleeve (511), and one end of the limiting rod (41) is provided with a threaded section (411). The threaded sleeve (511) is connected to the threaded section (411) threaded sleeve (511).

7. A feed arrangement for a refining furnace as claimed in claim 5, characterized in that: The limiting strip (51) is threaded to an adjusting screw (512) at the end opposite to the limiting rod (41), and the stop block (52) is located at the end of the adjusting screw (512) opposite to the limiting strip (51).

8. The feeding device for a refining furnace according to claim 5, characterized in that: The stop (52) has a buffer pad on one side facing the limit strip (51).

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