Hot-metal bottle protection device and hot-metal bottle system

Abstract

The utility model discloses a hot-metal bottle protection device and a hot-metal bottle system.In the hot-metal bottle protection device, a moving trolley is arranged on a rail which supports and stretches across a conveying line and is higher than a hot-metal bottle, and the moving trolley moves in the extending direction of the rail. The lifting appliance of the lifting device and the protective cover of the lifting appliance move along with the moving trolley. The movable trolley moves along the track, so that the lifting appliance and the protective cover of the lifting device move to the tank opening of the hot-metal tank, the lifting appliance and the protective cover descend until the protective cover covers the tank opening of the hot-metal tank, and the protective effect is achieved; the protective cover and the lifting appliance are detachably connected, the protective cover can be separated from the lifting appliance and continuously placed at the tank opening, smoke pollution and heat loss are reduced, the protective cover only covers the tank opening, the protective cover and the tank opening are convenient to separate, the problem that follow-up work of the molten iron tank is affected due to clamping stagnation of the protective cover is not prone to occurring, and the transportation efficiency of molten iron is guaranteed; the technical problem that transportation efficiency, environmental protection and production benefits are affected in the molten iron transportation process is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of molten iron ladle equipment, and in particular, relates to a molten iron ladle protection device and a molten iron ladle system. Background Art

[0002] The molten iron tank is a large thermal equipment used by the steel industry to transport molten iron from blast furnaces. The molten iron tank used in blast furnaces is a long, torpedo-shaped tank, also known as a torpedo tank car. The molten iron produced by the blast furnace is poured into the torpedo tank and transported by the locomotive into the molten iron receiving unit of the steel plant.

[0003] In the process of transporting molten iron by torpedo tank trucks, it has to go through stages such as receiving iron, transportation, waiting, pouring iron and returning empty tanks. During these stages, a large amount of heat-carrying media such as smoke, steam, etc. will be discharged into the atmosphere through the tank mouth of the torpedo tank truck in the form of heat convection, causing the temperature of the molten iron to drop, resulting in production efficiency losses and environmental problems during the transportation of molten iron. A switchable protective cover is installed at the tank mouth of the torpedo tank truck. If the protective cover fails at the tank mouth, it will affect the transportation efficiency of the molten iron. Utility Model Content

[0004] The present application aims to at least to some extent solve the technical problems of transportation efficiency, environmental protection and production benefits being affected during molten iron transportation. To this end, the present application provides a molten iron tank protection device and a molten iron tank system.

[0005] An embodiment of the present application provides a molten iron tank protection device, which is used to protect the tank mouth of the molten iron tank on the transportation line, and includes:

[0006] A support frame, comprising a track that spans the transport line and is higher than the molten iron ladle;

[0007] A movable trolley is movably arranged on the track along the extension direction of the track;

[0008] A lifting device, connected to the mobile trolley and provided with a lifting device that can be lifted and lowered relative to the molten iron ladle;

[0009] The protective cover is detachably arranged on the sling and rises and falls with the sling to cover the tank opening.

[0010] In some embodiments, the protective cover is hooked to the sling, and the protective cover is a high temperature resistant protective cover.

[0011] In some embodiments, the protective cover comprises:

[0012] A disc-shaped cover body having a diameter larger than the tank mouth, one end of which is connected to the sling;

[0013] The blocking protrusion is arranged at the other end of the disc-shaped cover body and is used for extending into the can mouth.

[0014] In some embodiments, the surface of the blocking protrusion is wavy.

[0015] In some embodiments, the lifting device includes a lifting end that can be raised and lowered relative to the molten iron ladle, and the lifting device includes:

[0016] A hook, fixed to the lifting end;

[0017] A frame-shaped member, provided with a connecting portion and at least two rod portions connected to the connecting portion at intervals, one of the rod portions being hooked to the hook;

[0018] The self-unloading hook is rotatably sleeved on the other rod part and is provided with a hooking part located at one side of the corresponding rod part, and the hooking part is used for hooking the protective cover.

[0019] In some embodiments, the self-unloading hook is provided with a counterweight portion and the hooking portion respectively located on both sides of the width direction of the rod portion, and the weight of the counterweight portion is greater than the weight of the hooking portion.

[0020] In some embodiments, the connecting portion is plate-shaped, one end of the rod portion is connected to the plate surface of the connecting portion, the rotation plane of the self-unloading hook is parallel to the connecting portion, and the distance between the connecting portion and the tank mouth is smaller than the distance between the hook connecting portion and the tank mouth.

[0021] In some embodiments, the lifting device also includes a drum arranged on the moving trolley, a steel wire rope of the drum is connected to the sling, and the molten iron ladle protection device also includes a counterweight mounted on the steel wire rope.

[0022] In some embodiments, the molten iron ladle protection device further comprises:

[0023] The electrical drag chain assembly is arranged on the support frame and is electrically connected to the lifting device and the moving trolley.

[0024] The present application provides a molten iron ladle system, comprising:

[0025] At least one transport line;

[0026] A molten iron ladle disposed on the transport line and movable along the transport direction of the transport line;

[0027] As described above in the molten iron ladle protection device, the support frame includes a track spanning at least one of the transport lines and higher than the molten iron ladle.

[0028] Advantageous effects provided by one or more embodiments of the present application:

[0029] In the iron ladle protection device, the support frame can provide installation and support space for other components or members in the iron ladle protection device, and a moving trolley is provided on the track that supports the ladle across the transport line and is higher than the iron ladle, and the moving trolley can move along the extension direction of the track. The movement of the moving trolley can make the lifting device connected to the moving trolley move with the moving trolley, and the lifting device's sling, hoisting and the protective cover of the sling also move with the moving trolley. Under the condition that the track crosses the transport line and is higher than the molten iron ladle, the mobile trolley is moved along the track, so that the sling and the protective cover of the lifting device can be moved to above the tank mouth of the molten iron ladle, and then the sling of the lifting device is lifted and lowered relative to the molten iron ladle, and the sling and the protective cover are lowered until the protective cover covers the tank mouth of the molten iron ladle, and the protective cover protects the tank mouth, reduces smoke and other media flowing out of the tank mouth of the molten iron ladle, reduces heat loss to ensure the temperature of the molten iron in the molten iron ladle, reduces pollution caused by the media flowing out of the tank mouth and ensures the quality of the molten iron, ensures subsequent production efficiency, and ensures production benefits; the protective cover and the sling are detachably connected, the protective cover can be separated from the sling and continuously placed on the tank mouth, effectively reducing smoke pollution and heat loss during the transportation of molten iron by the molten iron ladle, the protective cover only covers the tank mouth, and is not tightly connected to the tank mouth, so it is easy to separate the protective cover from the tank mouth, and it is not easy for the protective cover to get stuck and affect the subsequent work of the molten iron ladle, so the transportation efficiency of the molten iron is ensured, and to a certain extent solves the technical problems of transportation efficiency, environmental protection and production benefits being affected during the transportation of molten iron. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic structural diagram of a molten iron ladle protection device in some embodiments or certain embodiments of the present application is shown.

[0032] Figure 2 A schematic diagram of the structure of a sling in some embodiments or certain embodiments of the present application is shown.

[0033] Figure 3 A schematic diagram of the structure of the frame parts and the self-unloading hooks of some embodiments or certain embodiments of the present application is shown.

[0034] Figure 4 A schematic diagram showing a matching state of a frame-shaped member and a self-unloading hook in some embodiments or certain embodiments of the present application is shown.

[0035] Figure 5A schematic diagram showing another matching state of the frame-shaped member and the self-unloading hook in some embodiments or certain embodiments of the present application is shown.

[0036] Figure 6 A schematic structural diagram of a mobile trolley and a lifting device in some embodiments or certain embodiments of the present application is shown.

[0037] Reference numerals: 1, support frame; 11, track; 12, crossbeam; 13, support leg; 2, mobile trolley; 21, vehicle body; 22, transmission shaft; 23, wheel; 24, driving member; 3, lifting device; 31, lifting device; 311, hook; 312, frame member; 3121, connecting part; 3122, rod; 3123, protrusion; 313, self-unloading hook; 3131, hook connection part; 313 2. Counterweight part; 3133. Rotating part; 32. Lifting end; 33. Drum; 331. Wire rope; 34. Motor; 35. Brake; 36. Universal joint shaft; 37. Coupling (half coupling); 4. Protective cover; 41. Disc-shaped cover; 42. Sealing protrusion; 43. Arc-shaped handle; 5. Counterweight; 6. Electrical drag chain assembly; 10. Transport line; 20. Molten iron tank; 201. Tank mouth. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0039] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0042] In the related art, during the transportation process of the molten iron tank, there is a technical problem that smoke and other media carry heat and lose it from the tank mouth, causing pollution and affecting the temperature of the molten iron and affecting production efficiency. The protective cover connected to the tank mouth that rotates and opens and closes is easy to get stuck, causing the molten iron tank to need maintenance, affecting transportation efficiency and production efficiency. The embodiment of the present application provides a molten iron tank protection device and a molten iron tank system, which can at least solve the above technical problems to a certain extent.

[0043] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0044] Figure 1 The schematic diagram of the structure of a molten iron tank protection device in some embodiments or certain embodiments of the present application is shown, with reference to Figure 1 The embodiment of the present application provides a molten iron tank protection device, which is used to protect the tank mouth 201 of the molten iron tank 20 on the transportation line 10, including:

[0045] The support frame 1 includes a track 11 that crosses the transport line 10 and is higher than the molten iron ladle 20 .

[0046] The movable vehicle 2 is movably disposed on the track 11 along the extension direction of the track 11 .

[0047] The lifting device 3 is connected to the moving trolley 2 and is provided with a lifting device 31 which can be lifted and lowered relative to the molten iron ladle 20 .

[0048] The protective cover 4 is detachably mounted on the sling 31 and is raised and lowered along with the sling 31 to cover the tank opening 201 .

[0049] In the iron ladle protection device, the support frame 1 can provide installation and support space for other components or members in the iron ladle protection device, and a moving trolley 2 is provided on the track 11 that supports the crossing of the transport line 10 and is higher than the iron ladle 20, and the moving trolley 2 can move along the extension direction of the track 11. The movement of the moving trolley 2 can make the lifting device 3 connected to the moving trolley 2 move together with the moving trolley 2, and the sling 31 of the lifting device 3 and the protective cover 4 hoisted and attached to the sling 31 also move together with the moving trolley 2. Under the condition that the track 11 crosses the transport line 10 and is higher than the molten iron tank 20, the mobile trolley 2 is moved along the track 11, so that the sling 31 and the protective cover 4 of the lifting device 3 can be moved above the tank mouth 201 of the molten iron tank 20, and then the sling 31 of the lifting device 3 is lifted and lowered relative to the molten iron tank 20, and the sling 31 and the protective cover 4 are lowered until the protective cover 4 covers the tank mouth 201 of the molten iron tank 20. The protective cover 4 protects the tank mouth 201, reduces the smoke and other media flowing out of the tank mouth 201 of the molten iron tank 20, reduces heat loss to ensure the temperature of the molten iron in the molten iron tank 20, reduces the pollution caused by the medium flowing out of the tank mouth 201 and ensures The quality of molten iron is guaranteed, and the subsequent production efficiency and production benefits are guaranteed; the protective cover 4 and the sling 31 are detachably connected, the protective cover 4 can be separated from the sling 31 and continuously placed on the tank mouth 201, effectively reducing smoke pollution and heat loss during the transportation of molten iron by the molten iron tank 20, the protective cover 4 only covers the tank mouth 201, and is not tightly connected to the tank mouth 201, which is convenient for separating the protective cover 4 from the tank mouth 201, and is not prone to the problem of the protective cover 4 getting stuck and affecting the subsequent work of the molten iron tank 20, thereby ensuring the transportation efficiency of the molten iron and, to a certain extent, solving the technical problems of the transportation efficiency, environmental protection and production benefits being affected during the transportation of molten iron.

[0050] The protective cover 4 is lowered to the tank mouth 201 of the molten iron tank 20, and the protective cover 4 covers the tank mouth 201, and the dustproof effect is also good. Compared with the protective cover 4 that is directly connected to the tank mouth 201 and can be rotatably opened and closed, there is no need to modify the molten iron tank 20, and the overall use and maintenance cost is also low. The protective cover 4 falls down to cover and protect, which has less restrictions on the protective cover 4 itself. For a protective cover 4 with a larger volume or area, it can be applied to a variety of molten iron tanks 20 with smaller tank mouths 201, with a higher utilization rate, which is also conducive to improving the transportation and production efficiency of molten iron.

[0051] It should be noted that the torpedo tank and torpedo tank car described in this application are both molten iron tanks 20, and the molten iron tank protection devices can also be applied to torpedo tanks or torpedo tank cars, and can also reduce the impact on transportation efficiency, production benefits and the environment during the transportation of molten iron.

[0052] In the present application, the protective cover 4 is detachably provided on the sling 31, which means that there is contact and interaction between the protective cover 4 and the sling 31 to ensure that the protective cover 4 and the sling 31 can move together. However, this contact and interaction between the protective cover 4 and the sling 31 can be separated, and the protective cover 4 and the sling 31 are not an integral structure. Optionally, the sling 31 may be provided with a retractable pin shaft, and the protective cover 4 may be provided with a socket corresponding to the pin shaft. When the pin shaft is extended and inserted into the socket, the sling 31 and the protective cover 4 can move together, and when the pin shaft is retracted and withdrawn from the socket, the sling 31 and the protective cover 4 can be separated. Alternatively, the sling 31 and the protective cover 4 can also be engaged with each other by means of grooves and protrusions to maintain the connection and overall movement of the sling 31 and the protective cover 4 for a period of time. This application does not impose any restrictions on this.

[0053] In some embodiments, the protective cover 4 covering the tank mouth 201 can be pushed away from the tank mouth 201 later according to needs, or separated from the tank mouth 201 with the cooperation of lifting equipment or hoisting equipment, or when the molten iron tank 20 containing molten iron is pouring the molten iron from the tank mouth 201, the protective cover 4 and the molten iron enter the next equipment for receiving the molten iron together, and the equipment for receiving the molten iron can be a molten iron ladle or the next molten iron tank 20, etc.

[0054] In some embodiments, the protective cover 4 can also be hooked to the hanger 31 , and the protective cover 4 is a high temperature resistant protective cover 4 .

[0055] The protective cover 4 and the sling 31 are connected by hooking, and the protective cover 4 and the sling 31 can move together, and it is also convenient to separate the protective cover 4 and the sling 31 after the protective cover 4 covers the tank mouth 201 of the molten iron tank 20. The hooking between the protective cover 4 and the sling 31 can be achieved by matching hook-shaped structures and hook-connecting holes. The hook-shaped structure and the hook-connecting hole can be respectively arranged on the protective cover 4 or the sling 31. The hook-shaped structure can be a hook or a J-shaped structure. The hook-connecting hole can be arranged on a specific structure, or it can be an ear plate hole. The hook-shaped structure can also be matched with a handle or a sling, etc. This application does not impose any restrictions on this. The protective cover 4 is a high temperature resistant protective cover 4, which can extend the service life of the protective cover 4, ensure the stable use of the protective cover 4 in a high temperature environment, reduce the replacement frequency, and is also conducive to improving the production efficiency during the transportation of molten iron.

[0056] In some embodiments, the protective cover 4 includes:

[0057] One end of the disc-shaped cover 41 , which has a diameter larger than the tank mouth 201 , is connected to the hanger 31 .

[0058] The blocking protrusion 42 is disposed at the other end of the disc-shaped cover 41 and is used to extend into the tank opening 201 .

[0059] The disc-shaped cover body 41 of the protective cover 4 has a diameter larger than the tank mouth 201, so that the protective cover 4 can cover the tank mouth 201 as a whole. The two ends of the disc-shaped cover body 41 face the sling 31 and the tank mouth 201 respectively, and one end is connected to the sling 31. Under the action of gravity, the other end of the disc-shaped cover body 41 is more likely to face downward. The lifting and lowering of the sling 31 and the movement of the mobile trolley 2 can move the blocking protrusion 42 set at the other end of the disc-shaped cover body 41 to extend into the tank mouth 201, and the disc-shaped cover body 41 can then cover the tank mouth 201 as a whole. The setting of the blocking protrusion 42 can facilitate the positioning of the protective cover 4, so that the protective cover 4 can cover the tank mouth 201 of the molten iron tank 20 more quickly, which is conducive to improving the transportation efficiency of the molten iron tank 20. The blocking protrusion 42 can also occupy part of the space in the tank mouth 201, reduce the probability of smoke and other media overflowing from between the tank mouth 201 and the disc-shaped cover body 41, and improve the transportation efficiency of the molten iron and the overall production efficiency.

[0060] In some embodiments, the surface of the blocking protrusion 42 may be wavy. The wavy surface of the blocking protrusion 42 can guide the smoke and other media in the tank mouth 201 to different directions or make part of the media flow back toward the bottom of the molten iron tank 20, which is beneficial to reduce the heat loss of the molten iron and the pollution caused by the smoke.

[0061] In some embodiments, an arc handle 43 may be provided at one end of the disc-shaped cover body 41, and the arc handle 43 is hooked with the sling 31 to facilitate operation of the protective cover 4 and connection between the protective cover 4 and the sling 31.

[0062] Figure 2 A schematic diagram of the structure of a sling in some embodiments or certain embodiments of the present application is shown, with reference to Figure 1 and Figure 2 In some embodiments, the lifting device 3 includes a lifting end 32 that can be lifted relative to the molten iron ladle 20, and the sling 31 includes:

[0063] The hook 311 is fixed to the lifting end 32 .

[0064] The frame member 312 comprises a connecting portion 3121 and at least two rod portions 3122 connected to the connecting portion 3121 at intervals, and one rod portion 3122 is hooked to the hook 311 .

[0065] The self-unloading hook 313 is rotatably sleeved on the other rod portion 3122 and is provided with a hooking portion 3131 located at one side of the corresponding rod portion 3122 . The hooking portion 3131 is used for hooking the protective cover 4 .

[0066] The hook 311 is connected to the lifting end 32 of the lifting device 3 that can be lifted relative to the molten iron ladle 20, and the hook 311 can also be lifted relative to the molten iron ladle 20. The frame-shaped member 312 can play the role of transition and spacing. The connecting portion 3121 of the frame-shaped member 312 connects at least two rods 3122 of the frame-shaped member 312. There is a gap between the at least two rods 3122, and one of the at least two rods 3122 of the frame-shaped member 312 is hooked to the hook 311, and the other rod 3122 is rotatably connected to the self-unloading hook 313, so that the self-unloading hook 313 and the frame-shaped member 312 can be lifted and lowered with the hook 311 and the lifting end 32. The self-unloading hook 313 is provided with a hooking portion 3131 located on one side of the corresponding rod 3122 for hooking the protective cover 4, so as to realize the lifting and movement of the protective cover 4. After the protective cover 4 is lowered to the tank mouth 201, the self-unloading hook 313 is lowered until the self-unloading hook 313 is not affected by the gravity of the protective cover 4, and then the self-unloading hook 313 can be rotated to separate the self-unloading hook 313 and the protective cover 4, which is convenient for operation. The above structure of the sling 31 can also reduce the situation where the sling 31 and the protective cover 4 are stuck and difficult to separate. When it is difficult to separate the self-unloading hook 313 and the protective cover 4, since the frame 312 is hooked to one rod 3122 of the hook 311, and there is a gap with the other rod 3122 of the self-unloading hook 313, the height of the hook 311 can be adjusted to separate the hook 311 from the frame 312, which has a certain fault tolerance and is also conducive to the normal transportation of molten iron.

[0067] It should be noted that the frame member 312 may be a structure that is connected end to end to form a closed through hole.

[0068] Figure 3 It shows a schematic diagram of the structure of the frame parts and the self-unloading hook in some embodiments or certain embodiments of the present application, Figure 4 A schematic diagram showing a matching state between a frame member and a self-unloading hook in some embodiments or certain embodiments of the present application is shown. Figure 5 A schematic diagram showing another matching state of the frame-shaped member and the self-unloading hook in some embodiments or certain embodiments of the present application is shown, combined with Figure 3 to Figure 5 In some embodiments, the self-unloading hook 313 is provided with a counterweight portion 3132 and a hooking portion 3131 respectively located on both sides of the width direction of the corresponding rod portion 3122 , and the weight of the counterweight portion 3132 is greater than the weight of the hooking portion 3131 .

[0069] The self-unloading hook 313 is provided with a counterweight part 3132 and a hooking part 3131 on both sides of the rotating rod part 3122, respectively. The weight of the counterweight part 3132 is greater than the weight of the hooking part 3131. When the self-unloading hook 313 is not subjected to force, the counterweight part 3132 and the hooking part 3131 can rotate with the rod part 3122 as the rotation axis, and the counterweight part 3132 with a heavier weight has a falling area, so that the hooking part 3131 moves up. After the protective cover 4 falls to the tank mouth 201, the self-unloading hook 313 is not subjected to force, and the counterweight part 3132 falls to move the hooking part 3131 upward, and the hooking part 3131 is separated from the protective cover 4, and the protective cover 4 is automatically separated, which is conducive to improving the transportation efficiency of molten iron and the overall production efficiency. When hooking the protective cover 4, the counterweight part 3132 can also play a counterweight role, so that the overall center of gravity of the self-unloading hook 313 and the protective cover 4 is more stable, which is conducive to the movement and positioning of the protective cover 4.

[0070] In some embodiments, the self-unloading hook 313 can be sleeved on the rod portion 3122 via the rotating portion 3133 , and the rotating portion 3133 connects the hooking portion 3131 and the counterweight portion 3132 .

[0071] In some embodiments, the connecting portion 3121 is plate-shaped, one end of the rod portion 3122 is connected to the plate surface of the connecting portion 3121, the rotation plane of the self-unloading hook 313 is parallel to the connecting portion 3121, and the distance between the connecting portion 3121 and the tank mouth 201 is smaller than the distance between the hooking portion 3131 and the tank mouth 201.

[0072] One end of the rod portion 3122 is connected to the plate surface of the plate-shaped connecting portion 3121, the connecting portion 3121 is parallel to the rotation plane of the self-unloading hook 313, and the distance between the connecting portion 3121 and the tank mouth 201 is smaller than the distance between the hooking portion 3131 and the tank mouth 201, so the lowest point of the connecting portion 3121 is lower than the lowest point of the hooking portion 3131. When the self-unloading hook 313 is hooked to the protective cover 4 and rotates around the rod portion 3122, for the protective cover 4 provided with an arc handle 43 or an ear plate for cooperation with the hook, if the arc handle 43 and the ear plate are long enough, after the arc handle 43 or the ear plate is hooked to the self-unloading hook 313 and rotates, the middle part of the arc handle 43 or the top of the ear plate will be blocked by the connecting portion 3121 with the lower lowest point, or can be clamped between the hooking portion 3131 of the self-unloading hook 313 and the connecting portion 3121 of the frame-shaped member 312, so that the protective cover 4 is limited, making the overall center of gravity of the self-unloading hook 313 and the protective cover 4 more stable, which is beneficial to the movement and positioning of the protective cover 4.

[0073] In some embodiments, the frame-shaped member 312 may include two connecting portions 3121, two rod portions 3122 that are parallel to each other and spaced apart, and a protrusion 3123. The two plate-shaped connecting portions 3121 are parallel to each other, the two ends of the rod portion 3122 are respectively connected to the plate surfaces of the two connecting portions 3121, and the protrusion 3123 is disposed on the plate surface of one connecting portion 3121 and is located between the two connecting portions 3121. The two rod portions 3122 and the protrusion 3123 may be sequentially distributed along the length direction of the connecting portion 3121. Along the length direction, the self-unloading hook 313 is rotatably connected to the rod portion 3122 located in the middle, and the other rod portion 3122 and the protrusion 3123 are located at both ends of the connecting portion 3121. When this structure is used, the length direction of the connecting portion 3121 can be arranged along the gravity direction, and the protrusion 3123 is lower than the other rod portion 3122. The protrusion 3123 and the connection portion 3121 can cooperate with the hook portion 3131 to form an arc-shaped handle 43 to increase the stability of the movement of the protective cover 4.

[0074] In some embodiments, the sling 31 may also include only a hook, or may include a frame-shaped member 312 in the form of a ring, a triangular frame, or a regular polygonal frame. The connecting portion 3121 and the rod portion 3122 may also be connected end to end to form the frame-shaped member 312, and the frame-shaped member 312 is hooked to the lifting hook provided on the protective cover 4 through a through hole.

[0075] Combination Figure 1 and Figure 2 In some embodiments, the lifting device 3 also includes a drum 33 arranged on the moving trolley 2, a steel wire rope 331 of the drum 33 is connected to the sling 31, and the molten iron ladle protection device also includes a counterweight 5 mounted on the steel wire rope 331.

[0076] The counterweight 5 on the steel wire rope 331 can make the center of gravity of the steel wire rope 331 and the protective cover 4 more stable, which is beneficial to the movement and positioning of the protective cover 4.

[0077] In some embodiments, the counterweight 5 can be configured as a counterweight block or a counterweight ring. The counterweight 5 can be separated from the steel wire rope 331 .

[0078] Figure 6 FIG. 1 shows a schematic diagram of a structure of a mobile trolley and a lifting device in some embodiments or certain embodiments of the present application, with reference to FIG. Figure 1 and Figure 6In some embodiments, the free end of the wire rope 331 of the lifting device 3 can be configured as a lifting end 32 connected to the sling 31. The lifting device 3 can also include a motor 34 and a brake 35. The motor 34 is connected to the moving trolley 2. The output shaft of the motor 34 extends and can be coaxially connected to the drum 33 through a universal transmission shaft 36. The brake 35 is connected to the moving trolley 2 and is used to brake the output shaft. It is convenient to drive the drum 33 to rotate so that the wire rope 331 connected to the peripheral wall of the drum 33 can be retracted and released. The brake 35 and the universal transmission shaft 36 can buffer and reduce shock and play an emergency role. Different axes can be connected through couplings or half couplings, which are uniformly marked as 37 in the accompanying drawings.

[0079] In some embodiments, the mobile cart 2 may include a frame-shaped body 21, at least two parallel rotating shafts are rotatably inserted into the body 21, and both ends extend out of the body 21, multiple wheels 23 are respectively connected to the two ends of the rotating shaft in a rolling manner, and the surrounding wall is rollingly supported on the track 11, the driving member 24 may be a motor or the aforementioned motor 34 of the same specification, etc., the motor 34 or the motor is used to drive the rotating shaft to rotate so that the wheels 23 roll, and the mobile cart 2 moves along the track 11.

[0080] In some embodiments, the support frame 1 may be a portal frame, the track 11 may be arranged on a crossbeam 12 of the support member, and the two support legs 13 of the support frame 1 are respectively located on both sides of the transport line 10 in the width direction.

[0081] In some embodiments, the iron ladle protection device further comprises an electrical drag chain assembly 6, which is disposed on the support frame 1 and electrically connected to the lifting device 3 and the moving trolley 2. The electrical drag chain assembly 6 supplies power to the lifting device 3 and the moving trolley 2 to extend their service life.

[0082] The electrical drag chain assembly 6 may include cables, pipelines, and protective covers for protecting the cables and pipelines, etc. The electrical drag chain assembly 6 may be used to supply power to the motor 34, the drive member 24, the reel 33, and the like.

[0083] Based on the same inventive concept, Figure 1 The present application also provides a molten iron tank system, the molten iron tank system comprising:

[0084] At least one transport line 10.

[0085] The molten iron ladle 20 is disposed on the transport line 10 and is movable along the transport direction of the transport line 10 .

[0086] As the aforementioned molten iron ladle protection device, the support frame 1 includes a track 11 that crosses at least one transport line 10 and is higher than the molten iron ladle 20 .

[0087] The structure and effect of the iron ladle protection device can be referred to above and will not be described here. The support frame 1 spans at least one transport line 10, which can improve the protection effect of the iron ladle 20 on multiple transport lines 10, which is conducive to improving transportation efficiency and production benefits.

[0088] It has been calculated that when the torpedo tank mouth is not equipped with a protective cover, the temperature drop loss of molten iron is about 2-4°C. Every 1°C reduction in the temperature of the molten iron can reduce the cost by 0.5 yuan / ton. Calculated based on an annual output of 8.9 million tons, the direct economic benefits that this invention can generate can reach at least 8.9 million yuan / year.

[0089] It should be noted that the board surface referred to in this application is the surface with the largest area on the structure where the board surface is located. The parallel or perpendicularity involved in this application is relative to the concept of absolute parallelism or absolute perpendicularity in geometry, and a deviation of 0 to 5 degrees is allowed. This application does not impose any restrictions on this.

[0090] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0091] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0092] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A protective device for a molten iron tank, characterized in that: Used to protect the mouth of the molten iron tank on the transportation line, including: A support frame, comprising a track that spans the transport line and is higher than the molten iron ladle; A movable trolley is movably arranged on the track along the extension direction of the track; A lifting device, connected to the mobile trolley and provided with a lifting device that can be lifted and lowered relative to the molten iron ladle; The protective cover is detachably arranged on the sling and rises and falls with the sling to cover the tank opening.

2. The iron ladle protection device according to claim 1, characterized in that: The protective cover is hooked to the sling, and the protective cover is a high temperature resistant protective cover.

3. The iron ladle protection device according to claim 1, characterized in that: The protective cover comprises: A disc-shaped cover body having a diameter larger than the tank mouth, one end of which is connected to the sling; The blocking protrusion is arranged at the other end of the disc-shaped cover body and is used for extending into the can mouth.

4. The iron ladle protection device according to claim 3, characterized in that: The surface of the blocking protrusion is wavy.

5. The iron ladle protection device according to any one of claims 1 to 4, characterized in that: The lifting device includes a lifting end that can be lifted and lowered relative to the molten iron ladle, and the lifting device includes: A hook, fixed to the lifting end; A frame-shaped member, provided with a connecting portion and at least two rod portions connected to the connecting portion at intervals, one of the rod portions being hooked to the hook; The self-unloading hook is rotatably sleeved on the other rod part and is provided with a hooking part located at one side of the corresponding rod part, and the hooking part is used for hooking the protective cover.

6. The iron ladle protection device according to claim 5, characterized in that: The self-unloading hook is provided with a counterweight portion and the hook connection portion respectively located at two sides corresponding to the width direction of the rod portion, and the weight of the counterweight portion is greater than the weight of the hook connection portion.

7. The iron ladle protection device according to claim 5, characterized in that: The connecting part is plate-shaped, one end of the rod is connected to the plate surface of the connecting part, the rotation plane of the self-unloading hook is parallel to the connecting part, and the distance between the connecting part and the tank mouth is smaller than the distance between the hook connecting part and the tank mouth.

8. The iron ladle protection device according to any one of claims 1 to 4, characterized in that: The lifting device also includes a drum arranged on the moving trolley, a steel wire rope of the drum is connected to the sling, and the molten iron ladle protection device also includes a counterweight piece sleeved on the steel wire rope.

9. The iron ladle protection device according to any one of claims 1 to 4, characterized in that: The molten iron ladle protection device also includes: The electrical drag chain assembly is arranged on the support frame and is electrically connected to the lifting device and the moving trolley.

10. A molten iron ladle system, characterized in that: include: At least one transport line; A molten iron ladle disposed on the transport line and movable along the transport direction of the transport line; The iron ladle protection device according to any one of claims 1 to 9, wherein the support frame comprises a track spanning at least one of the transport lines and being higher than the iron ladle.

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