Furnace door lifting appliance and furnace door lifting device

Abstract

The utility model relates to the technical field of furnace door lifting, in particular to a furnace door lifting appliance and a furnace door lifting device. The furnace door lifting appliance comprises a cross beam, a lifting device and a lifting device, the hoisting piece is arranged on the cross beam, the hoisting piece is located at the joint of the first cross beam section and the second cross beam section, and the hoisting piece is used for being connected with a crane; the connecting lugs are arranged at the two ends of the cross beam, and the connecting lugs are used for being detachably connected with furnace door lifting lugs. According to the furnace door lifting appliance provided by the embodiment of the invention, on the basis of the arrangement, stable lifting of the furnace door can be realized, certain balance can be kept without frequently adjusting the position of the furnace door, the lifting efficiency of furnace door lifting is favorably improved, and meanwhile, the safety of furnace door lifting is also favorably improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of furnace door hoisting, and in particular to a furnace door hoist and a furnace door hoisting device. Background Art

[0002] During the maintenance process, the replacement of the furnace door is an important maintenance project. The furnace door weighs about 6 tons. The existing maintenance method is often to use wire ropes, hand hoists and overhead cranes to lift the furnace door. When using tools such as wire ropes for lifting, it is necessary to frequently adjust the angle of the hand hoist to make the position of the furnace door balanced, resulting in time-consuming and labor-intensive lifting of the furnace door, which is not conducive to the rapid handling of faults and the guarantee of production efficiency. Utility Model Content

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present disclosure provides a furnace door hanger;

[0005] A second aspect of the present disclosure provides a furnace door hoisting device.

[0006] In view of this, according to a first aspect of an embodiment of the present disclosure, a furnace door hanger is proposed, comprising:

[0007] a crossbeam having a first crossbeam section and a second crossbeam section;

[0008] A lifting piece is provided on the crossbeam, the lifting piece is located at the connection between the first crossbeam section and the second crossbeam section, and the lifting piece is used to connect to the crane;

[0009] Connecting ears: connecting ears are provided at both ends of the beam, and the connecting ears are used to detachably connect to the furnace door hanging ears.

[0010] In a feasible implementation, it further includes:

[0011] The shaft body is arranged at both ends of the beam, and the lugs are rotatably sleeved on the shaft body;

[0012] A limiting member is provided at one end of the shaft body away from the crossbeam, and the limiting member is used to abut against the lug;

[0013] The axial direction of the shaft body is the same as the axial direction of the crossbeam, and the cross-sectional area of the shaft body is smaller than the cross-sectional area of the crossbeam.

[0014] In a feasible embodiment, the ear connector includes:

[0015] The connecting block is provided with a blind hole along the axial direction of the shaft body, and the shaft body is passed through the blind hole;

[0016] The connecting plate is used to abut against the furnace door lifting ear. The connecting plate is arranged at both ends of the connecting block along the conducting direction of the blind hole. The connecting plate is provided with a through hole, which is used to connect to the lifting hole of the furnace door lifting ear.

[0017] The safety pin is passed through the through hole, and the safety pin is also used to pass through the lifting hole.

[0018] In a feasible embodiment, two connecting plates are used to be arranged at both ends of the furnace door lifting lug.

[0019] In a feasible embodiment, the safety pin includes:

[0020] a first pin, the first pin being configured to pass through the through hole;

[0021] A first pin head is provided at one end of the first pin shaft and is used to abut against the connecting plate;

[0022] The first limiting pin, a first pin hole is opened at one end of the first pin shaft away from the first pin head, the first limiting pin is passed through the first pin hole, and the first limiting pin and the first pin head are used to limit the movement of the connecting plate along the first pin shaft.

[0023] In a feasible embodiment, the two connecting plates are used to be clamped by the furnace door lifting ears.

[0024] In a feasible embodiment, the second pin is configured to pass through the through hole;

[0025] A second pin head is provided at one end of the second pin shaft and is used to abut against the furnace door lifting ear;

[0026] The second limiting pin, a second pin hole is opened at one end of the second pin shaft away from the second pin head, the second limiting pin is passed through the second pin hole, and the second limiting pin and the second pin head are used to limit the movement of the furnace door lifting ear along the second pin shaft.

[0027] In a feasible embodiment, it also includes

[0028] The bearing is sleeved on the shaft body and located between the shaft body and the lug.

[0029] In a possible embodiment, along the axial direction of the crossbeam, the length of the first crossbeam segment is equal to the length of the second crossbeam segment.

[0030] According to a second aspect of an embodiment of the present disclosure, a furnace door hoisting device is provided, comprising:

[0031] The furnace door hanger according to any one of the first aspects above;

[0032] A crane, connected to the lifting device, is used to raise or lower the furnace door hanger.

[0033] Compared with the prior art, the present disclosure includes at least the following beneficial effects: According to an embodiment of the present disclosure, a furnace door hanger includes a crossbeam, a lifting piece and a connecting ear, wherein the lifting piece is arranged on the crossbeam, and the connecting ear is arranged at both ends of the crossbeam, the connecting ear is used to connect the furnace door lifting ear of the furnace door, and a detachable connection is adopted between the connecting ear and the furnace door lifting ear, so that the crossbeam can be connected to the furnace door through the connecting ear, and the crossbeam includes a first crossbeam section and a second crossbeam section, and the lifting piece is located at the connection between the first crossbeam section and the second crossbeam section, so that the crossbeam can be connected to the crane through the lifting piece to realize stable lifting of the furnace door.

[0034] The furnace door hanger and furnace door lifting device described in the present disclosure, and other advantages, objectives and features of the present disclosure will be reflected in part through the following description, and in part will be understood by technical personnel in this field through study and practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the exemplary embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present disclosure. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0036] Figure 1 A schematic structural diagram of a furnace door hanger according to an embodiment of the present disclosure;

[0037] Figure 2 A schematic structural diagram of a furnace door hanger according to an embodiment of the present disclosure from another perspective;

[0038] Figure 3 The present invention provides a schematic structural diagram of a lug of a furnace door hanger according to an embodiment of the present invention.

[0039] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names is as follows:

[0040] Beam 100, hanging parts 200, ear 300, shaft 400, limiter 500,

[0041] Connecting block 310, connecting plate 320, safety pin 330,

[0042] A first pin shaft 331, a first pin head 332, a first limiting pin 333, and a first chuck 334;

[0043] A second pin shaft 335 , a second pin head 336 , a second limiting pin 337 , and a second chuck 338 ;

[0044] A first cross beam section 110 and a second cross beam section 120 . DETAILED DESCRIPTION

[0045] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0046] like Figure 1 As shown, according to the first aspect of the embodiment of the present disclosure, a furnace door hanger is proposed, including: a beam 100, having a first beam section 110 and a second beam section 120; a lifting member 200, arranged on the beam 100, the lifting member 200 is located at the connection between the first beam section 110 and the second beam section 120, and the lifting member 200 is used to connect a crane; a connecting ear 300, both ends of the beam 100 are provided with a connecting ear 300, and the connecting ear 300 is used to detachably connect the furnace door lifting ear.

[0047] According to an embodiment of the present disclosure, a furnace door hanger includes a crossbeam 100, a hanging piece 200 and a connecting ear 300, wherein the hanging piece 200 is arranged on the crossbeam 100, and the connecting ear 300 is arranged at both ends of the crossbeam 100, and the connecting ear 300 is used to connect to the furnace door hanging ear of the furnace door, and a detachable connection is adopted between the connecting ear 300 and the furnace door hanging ear, so that the crossbeam 100 can be connected to the furnace door through the connecting ear 300, and the crossbeam 100 includes a first crossbeam section 110 and a second crossbeam section 120, and the hanging piece 200 is located at the connection between the first crossbeam section 110 and the second crossbeam section 120, so that the crossbeam 100 can be connected to the crane through the hanging piece 200 to achieve stable lifting of the furnace door.

[0048] It can be understood that when the ear 300 is connected to the furnace door lifting ear, the beam 100 is located on the furnace door, and the lifting component 200 is located between the first beam section 110 and the second beam section 120. The crane can directly connect the lifting component 200 to achieve the lifting of the furnace door.

[0049] It can be understood that the beam 100 includes a first beam section 110 and a second beam section 120, and the ears 300 are arranged at both ends of the beam 100, that is, the end of the first beam section 110 away from the second beam section 120 is provided with the ear 300, and the end of the second beam section 120 away from the first beam section 110 is also provided with the ear 300, and the lifting component 200 is arranged between the first connecting section and the second connecting section, so that the lifting component 200 can be arranged between the two furnace door lifting ears, that is, the lifting position of the lifting component 200 is located in the middle part of the furnace door, which is conducive to the crane to lift the furnace door smoothly by connecting the lifting component 200.

[0050] It should be noted that the replacement of the furnace door is an important maintenance project. The furnace door weighs about 6 tons. The furnace door lifting method used in traditional technology is often to use wire rope, hand winch and overhead crane to lift the furnace door. The hand winch and wire rope are connected to the two furnace door lifting ears for lifting. This lifting method requires strict control of the lifting conditions at the two lifting points, and the position of the furnace door needs to be adjusted by the angle of the hand winch to ensure that the furnace door can maintain a certain balance. This lifting method is time-consuming and labor-intensive, not conducive to the rapid handling of faults, nor to ensuring production efficiency; and, if the balance of the furnace door is broken, it is easy to cause the furnace door to tilt to one side, resulting in excessive bearing pressure on the wire rope on one side. Once the bearing pressure of the wire rope exceeds the maximum load, it will also cause the wire rope to break, causing a safety accident. The furnace door hoist proposed in the embodiment of the present disclosure can achieve smooth hoisting of the furnace door based on the above-mentioned settings, and can maintain a certain balance without frequently adjusting the position of the furnace door, which is beneficial to improving the hoisting efficiency of the furnace door hoisting, and is also beneficial to improving the safety of the furnace door hoisting.

[0051] It is understandable that due to the high height of the furnace door body and the limited height of some factory buildings, the traditional method of using wire rope in combination with hand winch for lifting is adopted. The wire rope and hand winch require a certain travel space, so a certain angle of the wire rope can only be sacrificed to make the wire rope connected to the lifting point of the furnace door at an angle, which further increases the load of the wire rope and makes it more likely to cause the wire rope to break. The furnace door lifting device proposed in the embodiment of the present disclosure has a crane directly connected to the lifting part 200 and uses a single connection point for lifting to ensure that the gravity of the furnace door and the lifting tension are in the same direction, which can make the force required for lifting smaller and is more conducive to improving safety.

[0052] In some examples, such as Figure 1 As shown, it also includes: a shaft body 400, which is arranged at both ends of the beam 100, and the ear 300 is rotatably mounted on the shaft body 400; a limit member 500, which is arranged at one end of the shaft body 400 away from the beam 100, and the limit member 500 is used to abut the ear 300; wherein, the axial direction of the shaft body 400 is the same as the axial direction of the beam 100, and the cross-sectional area of the shaft body 400 is smaller than the cross-sectional area of the beam 100.

[0053] In the above technical solution, the furnace door hanger also includes a shaft body 400 and a limiter 500, wherein the shaft body 400 is arranged in an axial manner along the beam 100, and the shaft bodies 400 are provided at both ends of the beam 100, one end of the shaft body 400 is provided on the beam 100, and the other end of the shaft body 400 is provided with a limiter 500, the ear 300 is sleeved on the shaft body 400, and the ear 300 can be rotated around the shaft body 400, and the limiter 500 is used to abut against the ear 300, which can prevent the ear 300 from moving away from the shaft body 400 along the axial direction of the shaft body 400. The cross-sectional area of 00 is smaller than that of the cross-sectional area of the beam 100. Along the extension direction of the shaft body 400, the ear 300 is located between the limit piece 500 and the cross beam 100, and the limit piece 500 and the cross beam 100 can be restricted to the two ends of the ear 300. With such an arrangement, during the hoisting of the furnace door, the ear 300 can be rotated with the shaft body 400 as the axis according to the state of the furnace door, so that even if the angle of the furnace door changes, the ear 300 can be in a state of conforming to the direction of the tension provided by the cross beam 100, which is beneficial to ensure the stability of the furnace door hoisting and to improve the safety during the hoisting process.

[0054] It is understandable that, during the process of lifting and placing the furnace door, the ear 300 and the shaft 400 are connected in a rotating manner, which is beneficial for connecting or disassembling the furnace door and the ear 300, and is also beneficial for adjusting the angle of the furnace door according to actual conditions.

[0055] It is understandable that baffles can also be provided at both ends of the beam 100, which are used to abut the ears 300. The baffles and the shaft body 400 are arranged at intervals along the height direction. The baffles can limit the rotation angle of the ears 300 to avoid excessive rotation of the furnace door during the hoisting process, which is beneficial to improving the safety during the hoisting process.

[0056] In some examples, such as Figures 1 to 3 As shown, the ear 300 includes: a connecting block 310, which is provided with a blind hole along the axial direction of the shaft body 400, and the shaft body 400 is passed through the blind hole; a connecting plate 320, which is used to abut against the furnace door lifting ear, and is arranged at both ends of the connecting block 310 along the conducting direction of the blind hole. The connecting plate 320 is provided with a through hole, and the through hole is used to connect to the lifting hole of the furnace door lifting ear; a safety pin 330, which is passed through the through hole, and the safety pin 330 is also used to be passed through the lifting hole.

[0057] In the above technical solution, the connecting ear 300 includes a connecting block 310, a connecting plate 320 and a safety pin 330, wherein the connecting plate 320 is arranged at both ends of the connecting block 310, and a blind hole for being sleeved on the shaft body 400 is opened on the connecting block 310, and a lifting hole for connecting the furnace door lifting ear is opened on the connecting plate 320, and the safety pin 330 is passed through the lifting hole of the furnace door lifting ear and the through hole of the connecting plate 320, that is, the safety pin 330 is used to connect the furnace door lifting ear with the connecting plate 320, and at the same time, the abutment of the connecting plate 320 with the furnace door lifting ear can help improve the safety of the furnace door hanger, and at the same time, the connection is made by means of the safety pin 330, which can make the connection between the connecting plate 320 and the furnace door lifting ear more convenient, which is conducive to improving the lifting efficiency of the furnace door.

[0058] In some examples, two connecting plates 320 are provided at both ends of the furnace door lifting ear.

[0059] In the above technical solution, the connecting plates 320 are used to be arranged at both ends of the furnace door lifting ears, and at the same time, the connecting plates 320 are used to abut the furnace door lifting ears, so that the furnace door lifting ears can be located between the two connecting plates 320. The two connecting plates 320 can limit the sliding of the furnace door lifting ears along the axial direction of the safety pin 330, thereby ensuring the relative position relationship between the connecting plates 320 and the furnace door lifting ears, which is beneficial to improving the reliability of the connection between the connecting plates 320 and the furnace door lifting ears.

[0060] It can be understood that one end of the beam 100 has an axis body 400, and a connecting block 310 is sleeved on the axis body 400. A connecting plate 320 is provided at each end of the connecting block 310, that is, one ear 300 has two connecting plates 320, and the two continuous plates correspond to one furnace door lifting ear.

[0061] In some examples, such as Figure 2 As shown, the safety pin 330 includes: a first pin shaft 331, the first pin shaft 331 is used to be inserted into the through hole; a first pin head 332, arranged at one end of the first pin shaft 331, for abutting the connecting plate 320; a first limiting pin 333, a first pin hole is opened at one end of the first pin shaft 331 away from the first pin head 332, the first limiting pin 333 is inserted into the first pin hole, and the first limiting pin 333 and the first pin head 332 are used to limit the movement of the connecting plate 320 along the first pin shaft 331.

[0062] In the above technical solution, the safety pin 330 includes a first pin shaft 331, a first pin head 332 and a first limit pin 333. The first pin head 332 is arranged at one end of the first pin shaft 331, and a first pin hole is opened at the other end of the first pin shaft 331. The first limit pin 333 is arranged in the first pin hole. The first pin head 332 and the first limit pin 333 can both be used to limit the connecting plate 320, so that the first pin head 332 and the first limit pin 333 can prevent the connecting plate 320 from moving along the first pin shaft 331. Since the furnace door lifting ear is arranged between the two connecting plates 320, the reliability of the connection between the furnace door lifting ear and the connecting ear 300 can be ensured, which is conducive to ensuring the safety of lifting.

[0063] It is understandable that the safety pin 330 may further include a first chuck 334 disposed on the first pin shaft 331 , with one side of the first chuck 334 abutting against the first limiting pin 333 , and the other side of the chuck abutting against the connecting plate 320 .

[0064] In some examples, the two connecting plates 320 are configured to be clamped by the furnace door lifting ears.

[0065] In the above technical solution, the furnace door lifting lugs clamp the two connecting plates 320. It can be understood that the furnace door lifting lugs at the furnace door lifting point are composed of two furnace door lifting lug pieces. The two connecting plates 320 are clamped by the furnace door lifting lugs, which can avoid restricting the axial movement of the connecting plates 320 along the safety pin 330, thereby ensuring the relative position relationship between the connecting plates 320 and the furnace door lifting lugs, which is beneficial to improving the reliability of the connection between the connecting plates 320 and the furnace door lifting lugs.

[0066] For example, the two furnace door lifting ears can be connected by means of two connecting plates 320 being clamped by the furnace door lifting ears; or two connecting plates 320 can be provided at both ends of the furnace door lifting ears, and the two connecting plates 320 can be connected by clamping the furnace door lifting ears; or one furnace door lifting ear can be connected by means of two connecting plates 320 being clamped by the furnace door lifting ears, and the other furnace door lifting ear can be connected by means of two connecting plates 320 clamping the furnace door lifting ears.

[0067] In some examples, such as Figure 3 As shown, the safety pin 330 includes: a second pin shaft 335, the second pin shaft 335 is used to be inserted into the through hole; a second pin head 336 is arranged at one end of the second pin shaft 335, and is used to abut the furnace door lifting ear; a second limiting pin 337, the second pin shaft 335 is provided with a second pin hole at one end away from the second pin head 336, and the second limiting pin 337 is inserted into the second pin hole. The second limiting pin 337 and the second pin head 336 are used to limit the movement of the furnace door lifting ear along the second pin shaft 335.

[0068] In the above technical solution, the safety pin 330 includes a second pin shaft 335, a second pin head 336 and a second limit pin 337. The second pin head 336 is arranged at one end of the second pin shaft 335, and a second pin hole is opened at the other end of the second pin shaft 335. The second limit pin 337 is arranged in the second pin hole. The second pin head 336 and the second limit pin 337 are both used to limit the furnace door lifting ear, so that the second pin head 336 and the second limit pin 337 can prevent the furnace door lifting ear from moving along the second pin shaft 335. Since the furnace door lifting ear clamps the two connecting plates 320, the reliability of the connection between the furnace door lifting ear and the connecting ear 300 can be ensured, which is conducive to ensuring the safety of lifting.

[0069] It is understandable that the safety pin 330 may further include a second chuck 338 disposed on the second pin shaft 335 , with one side of the second chuck 338 abutting against the second limiting pin 337 , and the other side of the chuck abutting against the furnace door lifting ear.

[0070] In some examples, the device further includes: a bearing, which is sleeved on the shaft body 400 and located between the shaft body 400 and the ear 300 .

[0071] In the above technical solution, a bearing is further sleeved on the shaft body 400 , and the bearing is arranged between the shaft body 400 and the ear 300 . The bearing can make the ear 300 rotate more smoothly relative to the shaft body 400 .

[0072] In some examples, along the axial direction of the beam 100 , the length of the first beam segment 110 is equal to the length of the second beam segment 120 .

[0073] In the above technical solution, along the axial direction of the beam 100, the length of the first beam section 110 is equal to the length of the second beam section 120, and the lifting component 200 is located between the first beam section 110 and the second beam section 120, that is, the crane lifts from the middle lifting component 200 located on the beam 100. Such an arrangement can make the two sides of the lifting component 200 in a certain balanced state, which is conducive to ensuring stability during the lifting process.

[0074] According to a second aspect of an embodiment of the present disclosure, a furnace door hoisting device is proposed, comprising: a furnace door hoist as proposed in any one of the first aspects above; and a crane connected to the hoisting member 200 for raising or lowering the furnace door hoist.

[0075] Since the furnace door lifting device provided by the embodiment of the present disclosure includes the furnace door hanger proposed in any one of the first aspects above, it has all the beneficial effects of the furnace door hanger, which will not be described in detail here.

[0076] In the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0077] In the description of the present disclosure, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as a limitation on the present disclosure.

[0078] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0079] The above are merely preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that various modifications and variations of the present disclosure are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A furnace door hanger, characterized in that: include: a crossbeam having a first crossbeam section and a second crossbeam section; a hoisting member, provided on the crossbeam, the hoisting member being located at the connection between the first crossbeam section and the second crossbeam section, the hoisting member being used to connect to a crane; Connecting ears are provided at both ends of the beam, and the connecting ears are used to detachably connect to the furnace door hanging ears.

2. The furnace door hanger according to claim 1, characterized in that: Also includes: A shaft body, the shaft body is arranged at both ends of the beam, and the lug is rotatably sleeved on the shaft body; a limiting member, disposed at an end of the shaft away from the crossbeam, the limiting member being used to abut against the lug; The axial direction of the shaft body is the same as the axial direction of the crossbeam, and the cross-sectional area of the shaft body is smaller than the cross-sectional area of the crossbeam.

3. The furnace door hanger according to claim 2, characterized in that: The ear comprises: A connecting block is provided with a blind hole along the axial direction of the shaft body, and the shaft body is passed through the blind hole; A connecting plate, the connecting plate is used to abut against the furnace door lifting ear, and is provided at both ends of the connecting block along the conducting direction of the blind hole. The connecting plate is provided with a through hole, and the through hole is used to communicate with the lifting hole of the furnace door lifting ear; A safety pin is passed through the through hole, and the safety pin is also used to pass through the lifting hole.

4. The furnace door hanger according to claim 3, characterized in that: The two connecting plates are used to be arranged at both ends of the furnace door hanging ear.

5. The furnace door hanger according to claim 4, characterized in that: The safety pin comprises: a first pin, the first pin being configured to pass through the through hole; a first pin head, provided at one end of the first pin shaft, for abutting against the connecting plate; A first limiting pin, a first pin hole is provided at one end of the first pin shaft away from the first pin head, the first limiting pin is passed through the first pin hole, and the first limiting pin and the first pin head are used to limit the movement of the connecting plate along the first pin shaft.

6. The furnace door hanger according to claim 3, characterized in that: The two connecting plates are used to be clamped by the furnace door lifting ears.

7. The furnace door hanger according to claim 6, characterized in that: a second pin shaft, the second pin shaft being configured to pass through the through hole; a second pin head, provided at one end of the second pin shaft, for abutting against the furnace door lifting ear; A second limiting pin, a second pin hole is provided at one end of the second pin shaft away from the second pin head, the second limiting pin is passed through the second pin hole, and the second limiting pin and the second pin head are used to limit the movement of the furnace door lifting ear along the second pin shaft.

8. The furnace door hanger according to claim 2, characterized in that: Also includes The bearing is sleeved on the shaft body and located between the shaft body and the lug.

9. The furnace door hanger according to any one of claims 1 to 8, characterized in that: Along the axial direction of the beam, the length of the first beam segment is equal to the length of the second beam segment.

10. A furnace door hoisting device, characterized in that: include: The furnace door hanger according to any one of claims 1 to 9; A crane is connected to the lifting member and is used to raise or lower the furnace door lifting device.

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