Ladle furnace carburant feeding device

Abstract

The utility model relates to a ladle furnace carburant feeding device which comprises a hanging box, a hanging ring is fixedly connected to the top of the hanging box, a feeding port or a movable door is arranged at the bottom of the hanging box, and a lockable isolation door is hinged to a box body of the hanging box. A window is formed in a box body of the hanging box, the rotating plate is rotatably connected into the window, one end of the rotating plate extends into the hanging box, the other end of the rotating plate extends out of the hanging box, and the placing plate is fixedly connected to the end, extending into the hanging box, of the rotating plate. One end of the telescopic mechanism is rotatably connected with the end, extending out of the hanging box, of the rotating plate, the other end of the telescopic mechanism is rotatably connected to the hanging box, the rotating plate and the containing plate are driven to be turned over and switched between the horizontal state and the inclined state through stretching and retracting of the telescopic mechanism, and the containing plate is used for containing a carburant. According to the recarburizing agent feeding device, recarburizing agent feeding can be achieved through automatic control instead of manual operation, and the feeding operation process is safer.

Description

Technical Field

[0001] The utility model relates to the field of steel smelting equipment, in particular to a carburizer feeding device for a ladle furnace. Background Art

[0002] During the steelmaking process, the carbon content in the molten steel often cannot reach the target value due to carbon burnout, so it is necessary to add a recarburizer to increase the carbon content of the molten steel during the steelmaking process. Recarburizer is an additive that must be used in steelmaking in the steel industry. Its function is to adjust the carbon content of steel. Recarburizers are usually some graphite, silicon carbide and other substances. They can stably exist in molten steel at high temperatures, which helps to adjust the composition and properties of steel. At present, when adding recarburizer to the ladle furnace, it is usually necessary to manually throw the packaged recarburizer directly into the ladle furnace. There is a certain risk in the actual operation process. Therefore, it is necessary to develop a ladle furnace recarburizer feeding device to add recarburizer to the ladle furnace. Utility Model Content

[0003] Therefore, in view of the above problems, the utility model proposes a carburizer feeding device for a ladle furnace.

[0004] The utility model is implemented by the following technical solutions:

[0005] The utility model proposes a carburizer feeding device for a ladle furnace, comprising a hanging box, a hanging ring being fixedly connected to the top of the hanging box, a feeding port or a movable door being arranged at the bottom of the hanging box, and a lockable isolation door being hinged on the box body of the hanging box; the utility model also comprises a rotating plate, a placing plate and a telescopic mechanism, a window being opened on the box body of the hanging box, the rotating plate being rotatably connected in the window, one end of the rotating plate extending into the interior of the hanging box, and the other end extending out of the hanging box, the placing plate being fixedly connected to the end of the rotating plate extending into the interior of the hanging box, one end of the telescopic mechanism being rotatably connected to the end of the rotating plate extending out of the hanging box, and the other end of the telescopic mechanism being rotatably connected to the hanging box, the rotating plate and the placing plate being rotatably connected to the hanging box, the rotating plate and the placing plate being driven to flip and switch between a horizontal state and an inclined state by the telescopic mechanism, and the placing plate being used for placing the carburizer.

[0006] Among them, preferably, the isolation door is a double-door structure, including a first isolation door and a second isolation door arranged opposite to each other on the left and right, the left end of the first isolation door is hinged to the hanging box, and the right end of the second isolation door is hinged to the hanging box.

[0007] Preferably, a raised pressure plate is provided on the inner side of the right end of the first isolation door, and a recessed pressure groove is provided on the outer side of the left end of the second isolation door, and the first isolation door and the second isolation door are closed relative to the hanging box so that the pressure plate is pressed into the pressure groove from the outside to the inside.

[0008] Preferably, it also includes a locking mechanism for locking the isolation door, the locking mechanism includes a knob and a screw hole opened on the hanging box, the knob is fixedly connected to a threaded column passing through the isolation door, the knob is arranged on the outside of the isolation door, and the threaded column can be screwed correspondingly to the screw hole on the hanging box.

[0009] Preferably, a plurality of parallel and spaced rollers are rotatably provided on the placement plate, and the upper ends of the plurality of rollers constitute the upper bearing surface of the placement plate.

[0010] Among them, preferably, N windows are provided on the two opposite side walls of the box body of the hanging box, and the N windows are arranged in parallel and spaced from top to bottom. A rotating plate, a placing plate and a telescopic mechanism are provided corresponding to each window, and N is greater than or equal to 2.

[0011] Preferably, universal wheels are respectively provided at the four corners of the bottom of the hanging box.

[0012] Among them, preferably, the telescopic mechanism includes a first telescopic cylinder, one end of the first telescopic cylinder is rotatably connected to the hanging box, the interior of the first telescopic cylinder is slidably connected to the second telescopic cylinder, and the interiors of the first telescopic cylinder and the second telescopic cylinder are provided with a driving assembly for driving the second telescopic cylinder to slide relative to the first telescopic cylinder.

[0013] Preferably, a guide groove is provided on the surface of the second telescopic cylinder, a guide block is fixed to one end of the first telescopic cylinder, and the guide block is slidably connected inside the guide groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. The recarburizer feeding device for the ladle furnace provided by the utility model can hook the lifting ring with a crane, move the hanging box to the feeding port just above the ladle furnace, control the contraction of the telescopic mechanism, drive the placement plate to rotate downward under the action of the lever principle, and feed the recarburizer into the ladle furnace through the bottom of the hanging box, replacing manual feeding, making the feeding operation process safer;

[0016] 2. The utility model can place multiple recarburizer packages into the hanging box at one time by arranging a plurality of placement plates and telescopic mechanisms. The recarburizer inside the hanging box can be put into the ladle furnace as needed by controlling the corresponding telescopic mechanisms, thereby reducing the number of reciprocating times of the overhead crane, improving the feeding efficiency, and increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a recarburizer charging device for a ladle furnace in an embodiment (one, the isolation door is in an open state);

[0018] Figure 2Schematic diagram of a recarburizing agent feeding device for a ladle furnace in an embodiment (second, the isolation door is in a closed state);

[0019] Figure 3 is a structural schematic diagram of the telescopic mechanism in the embodiment;

[0020] Figure 4 Schematic diagram of the internal structure of the first telescopic cylinder and the second telescopic cylinder in the embodiment.

[0021] The markings in the figure are as follows:

[0022] 1. Hanging box; 2. First isolation door; 3. Second isolation door; 4. Pressing plate; 5. Pressing groove; 6. Turning plate; 7. Telescopic mechanism; 8. Lifting ring; 9. Threaded column; 10. Threaded hole; 11. Placement plate; 12. Roller; 13. Knob; 14. Window; 15. Universal wheel; 16. First telescopic cylinder; 17. Second telescopic cylinder; 18. Guide groove; 19. Guide block; 20. Drive rod; 21. Motor; 22. Threaded rod. DETAILED DESCRIPTION

[0023] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0025] See also Figure 1-4As shown, as a preferred embodiment of the utility model, a recarburizer feeding device for a ladle furnace is provided, comprising a hanging box 1, a hanging ring 8 is fixedly connected to the top of the hanging box 1, a feeding port or a movable door (not shown in the figure) is provided at the bottom of the hanging box 1, and a lockable isolation door is hinged on the box body of the hanging box 1. The isolation door in this embodiment is a double-door structure, including a first isolation door 2 and a second isolation door 3 arranged opposite to each other on the left and right, the left end of the first isolation door 2 is hinged to the hanging box 1, and the right end of the second isolation door 3 is hinged to the hanging box 1. By opening the isolation door, the recarburizer can be stored in the hanging box 1. After closing the isolation door, the recarburizer is isolated and sealed in the hanging box 1. In this embodiment, a raised pressure plate 4 is provided on the inner side of the right end of the first isolation door 2, and a concave pressure groove 5 is provided on the outer side of the left end of the second isolation door 3. When the first isolation door 2 and the second isolation door 3 are closed relative to the hanging box, the pressure plate 4 is pressed from the outside to the inside on the pressure groove 5, thereby forming a limiting effect on the second isolation door 3. In order to lock the isolation door in a closed state, a locking mechanism for locking the isolation door is provided in this embodiment, and the locking mechanism includes a knob 13 and a screw hole 10 opened on the hanging box 1. The knob 13 is fixedly connected to a threaded column 9 passing through the isolation door. The knob 13 is arranged on the outside of the isolation door, and the threaded column 9 can be correspondingly screwed to the screw hole 10 on the hanging box 1.

[0026] The carburizer feeding device for the ladle furnace also includes a rotating plate 6, a placing plate 11 and a telescopic mechanism 7. A window 14 is opened on the box body of the hanging box 1. The rotating plate 6 can be rotatably connected in the window 6. One end of the rotating plate 6 extends into the interior of the hanging box 1, and the other end extends out of the hanging box 1. The placing plate 11 is fixedly connected to the end of the rotating plate 6 extending into the interior of the hanging box 1. One end of the telescopic mechanism 7 is rotatably connected to the end of the rotating plate 6 extending outside the hanging box 1. The other end of the telescopic mechanism 7 is rotatably connected to the hanging box 1. The rotating plate 6 and the placing plate 11 are flipped and switched between horizontal and inclined states through the telescopic mechanism 7. During specific use, the recarburizer is placed on the horizontal placement plate 11, and the lifting ring 8 is hooked by using an overhead crane to move the lifting ring 8 to the feeding port just above the ladle furnace. The telescopic mechanism 7 is controlled to contract, and the placement plate 11 is driven to rotate and tilt downward under the action of the lever principle. The recarburizer on the placement plate 11 slides to the bottom of the hanging box 1 under the action of gravity, and then is put into the ladle furnace from the opening or movable door at the bottom of the hanging box 1, replacing manual feeding, making the feeding operation process safer.

[0027] In this embodiment, a plurality of parallel and spaced rollers 12 are rotatably provided on the placement plate 11, and the upper ends of the plurality of rollers 12 constitute the upper bearing surface of the placement plate 11. The rollers 12 are helpful in reducing the friction between the carburizer and the rollers 12, making loading more labor-saving.

[0028] In this embodiment, five windows 14 are provided on two opposite side walls of the box body of the hanging box 1. The five windows 14 are arranged in parallel and spaced from top to bottom. Corresponding to each window 14, a rotating plate 6, a placement plate 11 and a telescopic mechanism 7 are provided. The number of windows 14 can be adaptively changed according to the size of the actual hanging box 1, such as changing to 2, 3, 6, etc. Increasing the number of windows 14 and placement plates 11 can increase the storage capacity of the carburizer, reduce the number of reciprocating times of the overhead crane, improve the efficiency of feeding, and help increase the practicality of the device. When actually feeding, the feeding can be started from the lowest placement plate 11, and when feeding on the placement plate 11 at a relatively high position, the placement plate 11 at a relatively low position can be controlled to rotate to an inclined posture first, so as to facilitate the feeding of the carburizer on the placement plate 11 at a high position.

[0029] In this embodiment, universal wheels 15 are respectively provided at the four corners of the bottom of the hanging box 1, which can facilitate the movement of the hanging box 1 on a bearing surface such as the ground.

[0030] The telescopic mechanism 7 includes a first telescopic cylinder 16, one end of which is rotatably connected to the hanging box 1, and a second telescopic cylinder 17 is slidably connected inside the first telescopic cylinder 16. A driving assembly is arranged inside the first telescopic cylinder 16 and the second telescopic cylinder 17. Specifically, the driving assembly is used to drive the second telescopic cylinder 17 to telescope inside the first telescopic cylinder 16.

[0031] A guide groove 18 is formed on the surface of the second telescopic cylinder 17 , and a guide block 19 is fixed to one end of the first telescopic cylinder 16 . The guide block 19 is slidably connected inside the guide groove 18 . Specifically, the guide block 19 is slidably connected inside the guide groove 18 to limit the second telescopic cylinder 17 .

[0032] The driving assembly includes a threaded rod 22 fixedly connected to the inside of the second telescopic cylinder 17. A motor 21 is fixed inside the first telescopic cylinder 16 and at one end away from the second telescopic cylinder 17. A driving rod 20 is fixed to the output end of the motor 21. The driving rod 20 is threadedly connected to the surface of the threaded rod 22. Specifically, the driving rod 20 is driven to rotate by the rotation of the motor 21. When the driving rod 20 rotates, it is threadedly connected to the threaded rod 22, thereby driving the threaded rod 22 to move, and then the second telescopic cylinder 17 is driven to extend and retract inside the first telescopic cylinder 16 through the threaded rod 22.

[0033] The use process of the carburizer feeding device for a ladle furnace provided by the utility model is as follows:

[0034] When in use, the packaged carburant is placed on the surface of the placement plate 11 in the hanging box 1, the second isolation door 3 is closed first and then the first isolation door 2 is closed, so that the pressure plate 4 is pressed inside the pressure groove 5, thereby forming a limiting effect on the second isolation door 3, and the threaded column 9 is driven to rotate by turning the knob 13, and one end of the threaded column 9 is screwed into the threaded hole 10, so that the first isolation door 2 and the second isolation door 3 are locked, and the lifting ring 8 is hooked by the overhead crane, and the lifting ring 8 is moved to the feeding port just above the ladle furnace, and the corresponding telescopic mechanism 7 is controlled to contract, and the placement plate 11 is driven to rotate downward under the action of the lever principle, and the carburant bag at the lowest part of the hanging box 1 is put into the ladle furnace through the bottom of the hanging box 1. When the carburant bag is put in, the placement plate 11 below the placement plate 11 currently loaded with the carburant is opened and rotated in sequence by the corresponding telescopic mechanism 7, so that the carburant bag can fall into the lowest part of the lowest hanging box 1 and can be put into the ladle furnace. It replaces manual feeding, making the feeding operation process safer.

[0035] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes made to the present invention in form and detail, without departing from the spirit and scope of the present invention as defined in the appended claims, shall fall within the scope of protection of the present invention.

Claims

1. A recarburizing agent feeding device for a ladle furnace, Features: It includes a hanging box, the top of which is fixedly connected to a hanging ring, the bottom of which is provided with a feeding port or a movable door, and a lockable isolation door hinged on the box body of the hanging box; it also includes a rotating plate, a placing plate and a telescopic mechanism, a window is opened on the box body of the hanging box, the rotating plate is rotatably connected in the window, one end of the rotating plate extends into the interior of the hanging box, and the other end extends out of the hanging box, the placing plate is fixedly connected to the end of the rotating plate extending into the interior of the hanging box, one end of the telescopic mechanism is rotatably connected to the end of the rotating plate extending out of the hanging box, and the other end of the telescopic mechanism is rotatably connected to the hanging box, and the rotating plate and the placing plate are flipped and switched between horizontal and inclined states through the telescopic mechanism. The placing plate is used for placing the carburizer.

2. The recarburizer feeding device for ladle furnace according to claim 1, Features: The isolation door is a double-door structure, including a first isolation door and a second isolation door which are arranged opposite to each other on the left and right. The left end of the first isolation door is hinged to the hanging box, and the right end of the second isolation door is hinged to the hanging box.

3. The recarburizer feeding device for ladle furnace according to claim 2, Features: A raised pressure plate is provided on the inner side of the right end of the first isolation door, and a recessed pressure groove is provided on the outer side of the left end of the second isolation door. The first isolation door and the second isolation door are closed relative to the hanging box so that the pressure plate is pressed into the pressure groove from outside to inside.

4. The recarburizer feeding device for ladle furnace according to claim 1, Features: It also includes a locking mechanism for locking the isolation door, the locking mechanism includes a knob and a screw hole opened on the hanging box, the knob is fixedly connected to a threaded column passing through the isolation door, the knob is arranged on the outside of the isolation door, and the threaded column can be screwed correspondingly to the screw hole on the hanging box.

5. The recarburizer feeding device for ladle furnace according to claim 1, Features: The placement plate is rotatably provided with a plurality of parallel and spaced rollers, and the upper ends of the plurality of rollers constitute the upper bearing surface of the placement plate.

6. The recarburizer feeding device for ladle furnace according to claim 1, Features: N windows are arranged on two opposite side walls of the box body of the hanging box, and the N windows are arranged in parallel and spaced from top to bottom. A rotating plate, a placing plate and a telescopic mechanism are corresponding to each window, and N is greater than or equal to 2.

7. The recarburizer feeding device for ladle furnace according to claim 1, Features: The four corners of the bottom of the hanging box are respectively provided with universal wheels.

8. The recarburizer feeding device for ladle furnace according to claim 1, Features: The telescopic mechanism includes a first telescopic cylinder, one end of which is rotatably connected to the hanging box, a second telescopic cylinder is slidably connected inside the first telescopic cylinder, and a driving assembly is arranged inside the first telescopic cylinder and the second telescopic cylinder for driving the second telescopic cylinder to slide relative to the first telescopic cylinder.

9. The recarburizer feeding device for ladle furnace according to claim 8, Features: A guide groove is formed on the surface of the second telescopic cylinder, and a guide block is fixed to one end of the first telescopic cylinder. The guide block is slidably connected inside the guide groove.

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