Safety interlocking device for water-cooled furnace cover of refining furnace

Abstract

The utility model discloses a safety interlocking device for a water-cooled furnace cover of a refining furnace, which comprises the refining furnace, a bearing plate is arranged on the refining furnace, a top plate is arranged above the refining furnace, a stable lifting device is arranged at the lower end of the top plate, a water-cooled furnace cover is arranged at the lower end of the stable lifting device, a feed port and a smoke outlet are arranged on the water-cooled furnace cover, and the water-cooled furnace cover is arranged on the top plate. And an interlocking device is arranged on the bearing plate. The utility model belongs to the technical field of water-cooled furnace covers, and particularly relates to a safety interlocking device for a water-cooled furnace cover of a refining furnace, which solves the problems that the water-cooled furnace cover shakes and is unbalanced during lifting, the water-cooled furnace cover cannot be accurately covered on the refining furnace, and the safety interlocking device for the water-cooled furnace cover is lacked.

Description

Technical Field

[0001] The utility model belongs to the technical field of water-cooled furnace covers, in particular to a safety interlocking device for a water-cooled furnace cover of a refining furnace. Background Art

[0002] Ladle refining furnace is an important metallurgical equipment used to refine molten steel from primary refining furnace (electric arc furnace, open hearth furnace, converter), and can adjust the temperature of molten steel, process buffer, and meet the needs of continuous casting and continuous rolling. It is one of the main equipment for refining outside the furnace; ladle refining furnace includes ladle furnace and water-cooled furnace cover composed of several water-cooling pipes.

[0003] After searching, the publication (announcement) number: CN105861779A discloses an anti-overturning device for the water-cooled furnace cover and lifting columns of a ladle refining furnace. The water-cooled furnace cover is provided with an upward pulling force through a lifting mechanism, and the pulling force can balance the gravity and downward inertial resistance of the water-cooled furnace cover itself. At the same time, since the water-cooled furnace cover and the lifting columns are connected, the pulling force provided by the lifting mechanism indirectly provides an upward pulling force for the lifting columns, preventing the water-cooled furnace cover and the lifting columns from losing balance due to a large downward force and eventually overturning, thereby ensuring the smooth progress of the entire converter steelmaking process.

[0004] However, there are some shortcomings in use: the lifting of the water-cooled furnace cover is only driven by the sprocket to drive the furnace cover to lift and lower, and with the help of the balance of the lifting column, it is impossible to ensure that the water-cooled furnace cover will not shake during the lifting process, so it is impossible to ensure that the water-cooled furnace cover is accurately covered on the refining furnace, and when the refining furnace is sealed, there is a lack of a safety locking device. Therefore, improvements are needed. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the water-cooled furnace cover in the prior art shakes unbalancedly when being raised or lowered, cannot guarantee accurate covering on the refining furnace, and lacks a safety interlocking device for the water-cooled furnace cover.

[0006] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a refining furnace water-cooled furnace cover safety interlocking device, comprising a refining furnace, a supporting plate is provided on the refining furnace, a top plate is provided above the refining furnace, a stable lifting device is provided at the lower end of the top plate, a water-cooled furnace cover is provided at the lower end of the stable lifting device, a feed port and a smoke exhaust port are provided on the water-cooled furnace cover, an interlocking device is provided on the supporting plate; the interlocking device comprises a fixing plate, the fixing plate is located on the supporting plate, a pin rod is inserted in the fixing plate, and the fixing plate is provided with a fixing plate. An end cap is provided at the end of the pin rod, and a spring is sleeved on the pin rod. One end of the spring is fixed to the end cap and the other end is fixed to the fixed plate. A turntable is rotatably provided in the support plate, and the turntable and the support plate are always concentric. A protrusion is provided in the turntable, and a gear ring is provided on the outer wall of the turntable. A motor is provided in the support plate, and a gear is provided at the output end of the motor. The gear is meshed with the gear ring. The end cap can be squeezed by rotating the protrusion of the turntable, so that the pin rod is inserted into the water-cooled furnace cover, thereby completing the safety interlocking of the water-cooled furnace cover.

[0007] Furthermore, the smooth lifting device includes a hydraulic cylinder, which is arranged on the top plate. A connecting rod is provided at the output end of the hydraulic cylinder, and the connecting rod is connected to the upper end of the water-cooled furnace cover. The water-cooled furnace cover can be lifted and lowered by the smooth lifting device.

[0008] Preferably, a sleeve is provided at the lower end of the water-cooled furnace cover, a socket is provided in the sleeve, and when the sleeve is located on the supporting plate, the pin rod is aligned with the socket.

[0009] Preferably, the end cap is hemispherical, and when the protrusion presses the end cap, the pin rod can be inserted into the socket for interlocking.

[0010] Preferably, the circular array of pins is provided in multiple groups, and the number of the protrusions is equal to the number of the pins.

[0011] Preferably, the hydraulic cylinder is coaxially arranged with the water-cooled furnace cover.

[0012] The utility model adopts the above structure to achieve the following beneficial effects:

[0013] 1. The utility model can realize the smooth lifting and lowering of the water-cooled furnace cover by arranging a smooth lifting device, and no shaking will occur during the lifting process, which can achieve the purpose of accurately covering the refining furnace.

[0014] 2. The utility model can realize linkage locking of the water-cooled furnace cover by setting an interlocking device to maintain the tightness of the water-cooled furnace cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall stereogram of a safety interlocking device for a water-cooled furnace cover of a refining furnace according to the utility model;

[0016] Figure 2 It is a bottom-up three-dimensional view of a water-cooled furnace cover of a refining furnace water-cooled furnace cover safety interlocking device according to the utility model;

[0017] Figure 3 for Figure 1 A partial enlarged view of the middle part;

[0018] Figure 4 It is a partial perspective view of the interlocking device.

[0019] Among them, 1. refining furnace, 2. supporting plate, 3. top plate, 4. stable lifting device, 5. water-cooled furnace cover, 6. feed port, 7. smoke exhaust port, 8. interlocking device, 9. fixing plate, 10. pin rod, 11. end cap, 12. spring, 13. turntable, 14. bump, 15. gear ring, 16. motor, 17. gear, 18. hydraulic cylinder, 19. connecting rod, 20. sleeve, 21. socket. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] like Figure 1-4 The utility model discloses a safety interlocking device for a water-cooled furnace cover of a refining furnace, comprising a refining furnace 1, a supporting plate 2 is arranged on the refining furnace 1, a top plate 3 is arranged above the refining furnace 1, a stable lifting device 4 is arranged at the lower end of the top plate 3, a water-cooled furnace cover 5 is arranged at the lower end of the stable lifting device 4, a sleeve 20 is arranged at the lower end of the water-cooled furnace cover 5, a plug hole 21 is arranged in the sleeve 20, when the sleeve 20 is located on the supporting plate 2, a pin rod 10 is aligned with the plug hole 21, a feed port 6 and a smoke exhaust port 7 are arranged on the water-cooled furnace cover 5, and an interlocking device 8 is arranged on the supporting plate 2;

[0023] like Figure 1-4The interlocking device 8 includes a fixing plate 9, which is located on the supporting plate 2. A pin rod 10 is inserted in the fixing plate 9. An end cap 11 is provided at the end of the pin rod 10. The end cap 11 is hemispherical. When the protrusion 14 squeezes the end cap 11, the pin rod 10 can be inserted into the jack 21 for interlocking. A spring 12 is sleeved on the pin rod 10. One end of the spring 12 is fixed to the end cap 11 and the other end is fixed to the fixing plate 9. A rotating disk 13 is rotatably provided in the supporting plate 2. The rotating disk 13 and the supporting plate 2 is always concentric, a protrusion 14 is provided in the turntable 13, a plurality of groups of pins 10 are arranged in a circumferential array, the number of the protrusions 14 is equal to the number of the pins 10, a gear ring 15 is provided on the outer wall of the turntable 13, a motor 16 is provided in the support plate 2, a gear 17 is provided at the output end of the motor 16, and the gear 17 is meshed and connected with the gear ring 15. The end cap 11 can be squeezed by rotating the protrusion 14 of the turntable 13, so that the pins 10 are inserted into the water-cooled furnace cover 5, and the safety interlocking of the water-cooled furnace cover 5 is completed.

[0024] like Figure 1 The smooth lifting device 4 includes a hydraulic cylinder 18, which is arranged on the top plate 3. The hydraulic cylinder 18 is coaxially arranged with the water-cooled furnace cover 5. A connecting rod 19 is provided at the output end of the hydraulic cylinder 18, and the connecting rod 19 is connected to the upper end of the water-cooled furnace cover 5. The water-cooled furnace cover 5 can be lifted and lowered by the smooth lifting device 4.

[0025] During specific use, when the water-cooling furnace cover 5 is closed, the connecting rod 19 is driven by the hydraulic cylinder 18, and the connecting rod 19 drives the water-cooling furnace cover 5 to descend steadily until the sleeve 20 falls on the supporting plate 2, and the socket 21 is aligned with the pin rod 10 at this time.

[0026] Then, by starting the motor 16, the gear 17 engages with the ring gear 15 to rotate, and the ring gear 15 drives the turntable 13 to rotate in the supporting plate 2. There is a protrusion 14 in the turntable 13, and the protrusion 14 will squeeze all the end caps 11 at the same time, and the pin rod 10 will be inserted into the socket 21 to complete the safety interlocking of the water-cooled furnace cover 5.

[0027] When the water-cooled furnace cover 5 needs to be opened, the turntable 13 is first rotated to disengage the projection 14 from the end cap 11 , and the pin 10 is disengaged from the pin hole under the reset of the spring 12 , and the water-cooled furnace cover 5 can be opened with the help of the smooth lifting device 4 .

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A refining furnace water-cooling furnace cover safety interlock device, comprising a refining furnace, characterized in that: The refining furnace is provided with a supporting plate, a top plate is provided above the refining furnace, a stable lifting device is provided at the lower end of the top plate, a water-cooled furnace cover is provided at the lower end of the stable lifting device, a feed port and a smoke exhaust port are provided on the water-cooled furnace cover, and an interlocking device is provided on the supporting plate; The interlocking device includes a fixed plate, which is located on a supporting plate, a pin rod is inserted in the fixed plate, an end cap is provided at the end of the pin rod, a spring is sleeved on the pin rod, one end of the spring is fixed to the end cap and the other end is fixed to the fixed plate, a turntable is rotatably provided in the supporting plate, the turntable and the supporting plate are always concentric, a protrusion is provided in the turntable, a gear ring is provided on the outer wall of the turntable, a motor is provided in the supporting plate, a gear is provided at the output end of the motor, and the gear is meshed with the gear ring.

2. A refining furnace water-cooling cover safety interlock device according to claim 1, characterized in that: The smooth lifting device comprises a hydraulic cylinder, which is arranged on the top plate. A connecting rod is arranged at the output end of the hydraulic cylinder, and the connecting rod is connected to the upper end of the water-cooled furnace cover.

3. A refining furnace water-cooling cover safety interlock device according to claim 2, characterized in that: A sleeve is provided at the lower end of the water-cooled furnace cover, a plug hole is provided in the sleeve, and when the sleeve is located on the supporting plate, the pin rod is aligned with the plug hole.

4. A refining furnace water-cooling cover safety interlock device according to claim 3, characterized in that: The end cap is hemispherical in shape, and when the protrusion presses the end cap, the pin rod can be inserted into the insertion hole for interlocking.

5. A refining furnace water-cooling cover safety interlock device according to claim 4, characterized in that: The pin rod circumferential array is provided with a plurality of groups, and the number of the protrusions is equal to the number of the pin rods.

6. A refining furnace water-cooling cover safety interlock device according to claim 5, characterized in that: The hydraulic cylinder is coaxially arranged with the water-cooled furnace cover.

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