A sling sheath for hoisting high temperature materials

Abstract

The hoisting sling sheath for hoisting high-temperature materials provided by the application relates to the technical field of heat insulation protection. The hoisting sling sheath comprises a sheath body. The sheath body comprises, from outside to inside, a wear-resistant protective layer, a reflective heat insulation layer and a positive heat insulation layer. The wear-resistant protective layer is made of a stainless steel woven mesh. The reflective heat insulation layer comprises a plurality of reflective layers, and a partition layer is arranged between adjacent reflective layers. The reflective layers are made of titanium alloy foil or aluminum foil, and the partition layers are made of glass fiber. The positive heat insulation layer is made of ceramic fiber felt. The hoisting sling sheath for hoisting high-temperature materials provided by the application can form heat insulation protection for the hoisting sling, thereby reducing the risk of hoisting sling breakage during hoisting.

Description

Technical Field

[0001] This utility model relates to the field of heat insulation and protection technology, specifically a sling sheath for hoisting high-temperature materials. Background Technology

[0002] Currently, some high-temperature materials are still lifted directly using slings, resulting in direct contact between the slings and the high-temperature materials during the lifting process. For example, ... Figure 7 As shown, the current method for hoisting and transporting carbon blocks for carbon anodes is to use steel wire ropes as slings for direct hoisting.

[0003] Carbon anode blocks are a core material in the electrolytic aluminum industry. During production, carbon anode blocks are kept at high temperatures for extended periods and require hoisting and transport under these conditions. However, current slings are typically made of high-carbon steel. As temperatures rise, the thermal vibrations of the metal lattice structure intensify, weakening the interatomic bonding forces. Therefore, under high-temperature conditions, the slings are prone to breakage due to material degradation, structural damage, and thermal stress. Utility Model Content

[0004] To address the aforementioned issues, this application provides a sling sheath for lifting high-temperature materials, which can provide heat insulation protection for the sling, thereby reducing the risk of sling breakage during lifting.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A sling sheath for hoisting high-temperature materials includes a sheath body, wherein the sheath body comprises, from the outside to the inside, a wear-resistant protective layer, a reflective heat insulation layer and an active heat insulation layer; The wear-resistant protective layer is made of stainless steel woven mesh; The reflective heat insulation layer includes several reflective layers, with a partition layer between adjacent reflective layers. The reflective layers are made of titanium alloy foil or aluminum foil, and the partition layer is made of glass fiber. The active heat insulation layer is made of ceramic fiber felt.

[0006] Furthermore, the stainless steel woven mesh is woven from 316 or 310S stainless steel wire.

[0007] Furthermore, an adaptive bonding layer is provided on the inner side of the active heat insulation layer, and the adaptive bonding layer is made of rubber.

[0008] Furthermore, the adaptive bonding layer is made of silicone rubber.

[0009] Furthermore, it also includes a handle component, which includes an operating handle and a clamping plate surrounding the outer side of the sheath body. The clamping plate includes a first end and a second end, which are connected by a bolt assembly. One end of the operating handle is located between the first end and the second end, and the operating handle is provided with a connecting hole for receiving bolts.

[0010] Furthermore, under the locking action of the bolt assembly, the clamping plate clamps the sheath body onto the sling.

[0011] Furthermore, the handle component also includes two clamping blocks, each clamping block having a slot and a second through hole. The first end and the second end of the clamping plate are respectively inserted into the slots of the two clamping blocks, and the first through holes of the first end and the second end for accommodating bolts are respectively aligned with the second through holes of the two clamping blocks. The end of the clamping block facing the sheath body is provided with a pressing part located outside the slot.

[0012] Furthermore, the slot extends through the clamping block, and multiple first through holes are provided on both the first and second ends of the clamping plate.

[0013] Furthermore, the operating handle includes a pull rod, and a grip bar is provided at one end of the pull rod facing away from the sheath body.

[0014] The beneficial effects of this utility model are: 1. By covering the outside of the sling with a sling sheath for lifting high-temperature materials as provided in the embodiments of this application, the sling is isolated from the high-temperature materials, avoiding direct contact between the sling and the high-temperature materials (such as carbon anode blocks). This can effectively delay material degradation and corrosion, reduce structural damage and thermal stress, thereby reducing the risk of sling breakage during lifting and extending the service life of the sling.

[0015] 2. The sling sheath for hoisting high-temperature materials provided in this application embodiment can effectively resist mechanical impact and sparks by setting a wear-resistant protective layer, and quickly disperse the local concentrated impact force (such as the collision with the edge of the carbon anode block) to the entire protective layer, so as to prevent the sheath from being cut or torn, and make it difficult for sharp objects to scratch the substrate inside the sheath.

[0016] 3. The sling sheath for hoisting high-temperature materials provided in this application embodiment, by setting a reflective heat insulation layer formed by the alternating arrangement of reflective and interlayer layers, can reflect most (80%-95%) of the incident heat radiation, thereby preventing radiant heat energy from penetrating into the interior, forming the first and most effective line of defense against heat transfer. In addition, by setting the interlayer to form an air gap, since still air is a good insulator with an extremely low thermal conductivity (approximately 0.026 W / m·K), it can effectively block heat transferred layer by layer through heat conduction, forming a second line of defense against heat transfer. Through the combined effect of the first and second lines of defense, effective heat insulation can be achieved.

[0017] 4. The sling sheath for lifting high-temperature materials provided in this application embodiment has wide applicability and can be applied to common slings such as wire ropes and chains. Attached Figure Description

[0018] Figure 1 A schematic diagram of the installation structure of a sling sheath for hoisting high-temperature materials provided in an embodiment of this application; Figure 2 This is a cross-sectional view of the sheath body; Figure 3 This is a three-dimensional structural diagram of the handle component; Figure 4 This is a cross-sectional view of the handle component; Figure 5 This is a schematic diagram of the three-dimensional structure of the clamping block; Figure 6 This is a schematic diagram of the structure when the clamping plate is in the unfolded state; Figure 7 This is a schematic diagram of the structure when carbon anode blocks are hoisted using steel wire ropes.

[0019] In the diagram: 1. Sheath body; 11. Wear-resistant protective layer; 12. Reflective heat insulation layer; 121. Reflective layer; 122. Spacer layer; 13. Active heat insulation layer; 14. Adaptive bonding layer; 2. Handle component; 21. Clamping plate; 211. First end; 212. Second end; 213. First through hole; 22. Operating handle; 221. Pull rod; 222. Grip rod; 231. Bolt; 232. Locking nut; 24. Clamping block; 241. Slot; 242. Second through hole; 243. Abutment part; 3. Slings. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings. The described embodiments are merely a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the protection scope of this application.

[0021] like Figure 1 As shown, a sling sheath for hoisting high-temperature materials includes a sheath body 1 and a handle component 2.

[0022] like Figure 2 As shown, the sheath body 1 includes, from the outside to the inside, a wear-resistant protective layer 11, a reflective heat insulation layer 12, and an active heat insulation layer 13.

[0023] The wear-resistant protective layer 11 is made of stainless steel woven mesh with a thickness of 0.5-1mm, and is used to resist mechanical impact and sparks.

[0024] The mesh structure of stainless steel woven wire mesh can quickly disperse concentrated impact forces (such as collisions with the edges of carbon anode blocks) across the entire mesh surface, preventing the sheath from being cut or torn and making it difficult for sharp objects to scratch the substrate. Stainless steel is an excellent refractory material with a melting point far higher than the temperature of ordinary sparks or slag (>1500°C), thus effectively blocking sparks or slag and preventing them from burning the internal substrate of the sheath.

[0025] As one specific implementation, the stainless steel woven mesh of the wear-resistant protective layer 11 in this embodiment is woven from 316 or 310S stainless steel wire, and the mesh density can be adjusted according to the impact intensity under the application scenario.

[0026] The reflective heat insulation layer 12 includes several reflective layers 121, and a spacer 122 is provided between adjacent reflective layers 121 to separate the connected reflective layers 121. Preferably, the number of reflective layers 121 is 3-5.

[0027] The reflective layer 121 can reflect heat propagating in the form of electromagnetic waves. By setting a partition layer 122 to separate adjacent reflective layers 121, heat can be reflected multiple times, thereby reducing the amount of heat transferred by thermal radiation.

[0028] In one specific implementation, the reflective layer 121 described in this embodiment is made of titanium alloy foil or aluminum foil. The highly polished metal foil can reflect 80%-95% of the incident heat radiation, directly "bouncing" the heat back, thereby effectively preventing radiant heat from penetrating into the interior.

[0029] As one specific implementation, the reflective heat insulation layer 12 in this embodiment includes three reflective layers 121 and two insulating layers 122.

[0030] Furthermore, the partition 122 is made of high-temperature resistant glass fiber. Because glass fiber contains tiny gaps, and air can be present in these gaps to form an air interlayer, and still air is a good insulator with an extremely low thermal conductivity (approximately 0.026 W / m·K), the air interlayer can effectively block heat from being transferred layer by layer through heat conduction.

[0031] The active heat insulation layer 13 is made of ceramic fiber felt.

[0032] Because ceramic fiber felt is made by melting and spinning high-purity alumina, silicon dioxide, and other raw materials, the micron-sized fibers are randomly interwoven, forming a complex and tortuous pore structure. This pore structure can isolate and encapsulate a large amount of air within the micron-sized pores, thereby effectively suppressing heat convection and conduction. In addition, the main component of ceramic fiber felt is inorganic oxide, which has stable chemical properties and a melting point far above 1600°C. It can withstand high temperatures for a long time without decomposing or melting, and it has extremely high heat resistance.

[0033] Heat transfer is a complex phenomenon, generally classified into three basic modes: conduction, convection, and radiation. The heat transfer phenomena encountered in production and daily life are often combinations of these three modes with varying degrees of dominance. In this application, the reflective insulation layer 12 can block the vast majority of heat transferred via radiation and a small portion via conduction; the active insulation layer 13 can block the vast majority of heat transferred via conduction and convection. Through the reflective insulation layer 12 and the active insulation layer 13, the three basic heat transfer modes can be effectively blocked, thereby achieving a good insulation effect.

[0034] Furthermore, the sheath body 1 also includes an adaptive bonding layer 14 located inside the active heat insulation layer 13. The adaptive bonding layer 14 is made of rubber and has a temperature resistance greater than 180°C.

[0035] In one specific embodiment, the adaptive bonding layer 14 described in this example is made of silicone rubber.

[0036] The reasons for setting up the adaptive bonding layer 14 are as follows: First, because the adaptive bonding layer 14 is soft and elastic, it can deform significantly during tension and compression without the material itself suffering fatigue damage, thus perfectly adapting to the continuous dynamic bending conditions of the rigging during hoisting. Second, it can prevent the active heat insulation layer 13 from directly contacting the sling 3, thereby avoiding wear and tear on the active heat insulation layer 13.

[0037] In this application, the stainless steel woven mesh as the wear-resistant protective layer 11, the titanium alloy foil or aluminum foil as the reflective layer 121, the glass fiber as the partition layer 122, and the ceramic fiber felt as the active heat insulation layer 13 are all flexible. Therefore, the entire sheath body 1 is also flexible, which can meet the shape changes of the sling 3 during the hoisting process in actual use.

[0038] like Figure 1 , Figure 3 and Figure 4 As shown, the handle component 2 includes a clamping plate 21 and an operating handle 22.

[0039] The clamping plate 21 is a thin metal sheet with a certain degree of flexibility, capable of being rolled or bent, thus conveniently wrapping around the outside of the sheath body 1. The clamping plate 21 includes a first end 211 and a second end 212, which are opposite to each other. The first end 211 and the second end 212 are connected by a bolt 231 assembly. The bolt 231 assembly includes a bolt 231 and a locking nut 232 disposed on the bolt 231. The first end 211 and the second end 212 of the clamping plate 21 are respectively provided with a first through hole 213 for accommodating the bolt 231. The head of the bolt 231 is located outside the first end 211 (with the side opposite the first end 211 and the second end 212 as the inside), and the locking nut 232 is located outside the second end 212 (with the side opposite the first end 211 and the second end 212 as the inside). One end of the operating handle 22 is provided with a connecting hole for accommodating the bolt 231, and one end of the operating handle 22 is located between the first end 211 and the second end 212.

[0040] The reason for this design is that before hoisting high-temperature materials, the position of the sling on the high-temperature material needs to be adjusted to prevent it from falling due to issues such as an off-center center of gravity during hoisting. Because the sling 3 has a limited thickness, it often accidentally touches the high-temperature material during position adjustments, posing a risk of burns. Furthermore, since there is no safe point of leverage, one can only grasp the sling directly, which carries the risk of hand injuries from the sling and the high-temperature material when the sling tightens. By incorporating the handle component 2, the position of the sling can be adjusted simply by gripping the operating lever, avoiding the risk of burns or hand injuries during the adjustment process.

[0041] In one specific embodiment, the operating handle 22 in this embodiment includes a pull rod 221. One end of the pull rod 221 is provided with a connecting hole for accommodating the bolt 231, and the other end of the pull rod 221 is provided with a gripping rod 222 arranged perpendicularly to the pull rod 221. The pull rod 221 and the gripping rod 222 together form a T-shaped structure.

[0042] Furthermore, under the locking action of the bolt 231 assembly, the clamping plate 21 clamps the sheath body 1 onto the sling 3. That is, when the locking nut 232 is tightened, the distance between the first end 211 and the second end 212 decreases, and the clamping plate 21 gradually tightens, thereby clamping the sheath body 1 onto the sling 3.

[0043] For the sheath body 1 to be smoothly fitted onto the sling 3, its inner diameter must be looser than that of the sling 3. While this facilitates the installation of the sheath body 1, it also makes it prone to movement relative to the sling 3 during actual operation. By using the clamping plate 21 to tighten the sheath body 1 onto the sling 3, the sling 3 and the sheath body 1 can be connected as a whole, preventing the sheath body 1 from shifting relative to the sling 3 when adjusting the lifting position.

[0044] Here, the clamping plate 21 not only serves to install the operating handle 22, but also to fix the sheath body 1 to the sling 3, which is inexpensive, simple and practical.

[0045] Furthermore, such as Figure 3 , Figure 4 and Figure 5 As shown, the first end 211 and the second end 212 of the clamping plate 21 are respectively provided with clamping blocks 24. The clamping block 24 is provided with a slot 241 with its opening facing the sheath body 1 and a second through hole 242 penetrating the clamping block 24 along its thickness direction, and the second through hole 242 communicates with the slot 241. The first end 211 and the second end 212 of the clamping plate 21 are respectively inserted into the slots 241 of the two clamping blocks 24, and the first through holes 213 of the first end 211 and the second end 212 are respectively aligned with the second through holes 242 of the two clamping blocks 24. The first through holes 213 and the second through holes 242 together form a mounting hole for accommodating the bolt 231. The end of the clamping block 24 facing the sheath body 1 is located on the outside of the slot 241 (with the opposite side of the two clamping blocks 24 as the inside), and a pressing part 243 extending towards the sheath body 1 is provided, and the edge of the pressing part 243 facing the clamping piece 21 is rounded.

[0046] Furthermore, such as Figure 6 As shown, the slot 241 passes through the clamping block 24, and the first end 211 and the second end 212 of the clamping piece 21 are each provided with a plurality of first through holes 213.

[0047] The advantage of this design is that it increases the versatility of the handle component 2. In practical applications, firstly, a sheath body 1 of appropriate diameter is selected according to the thickness of the sling 3. Then, the clamping plate 21 is wrapped around the outside of the sheath body 1, and the first end 211 and the second end 212 of the clamping plate 21 are respectively inserted into the two clamping blocks 24, and one of the connecting holes is aligned with the second through hole 242 of the clamping block 24 according to the thickness of the sling 3. Then, one end of the pull rod 221 is inserted between the two clamping blocks 24, and the connecting hole on the pull rod 221 is aligned with the mounting hole formed by the first through hole 213 and the second through hole 242. Then, the bolt 231 is inserted and the locking nut 232 is tightened.

[0048] In practical applications, multiple handle components 2 can be installed on the sheath body 1, and the handle components 2 can be positioned to facilitate the adjustment of the sling 3, depending on the shape of the material being lifted and the lifting position of the sling 3. For example Figure 7 When hoisting carbon blocks, the handle part 2 can be placed on the part of the sling that contacts the side of the carbon block.

[0049] Other embodiments obtained by those skilled in the art based on the embodiments provided in this application by combining, splitting, or reorganizing the embodiments of this application do not exceed the protection scope of this application.

[0050] The above detailed embodiments have provided a detailed explanation of the purpose, technical solutions, and beneficial effects of the embodiments of this application. The above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. That is, any modifications, equivalent substitutions, improvements, etc., made on the basis of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A sling sheath for hoisting high-temperature materials, comprising a sheath body (1), characterized in that: The sheath body (1) includes, from the outside to the inside, a wear-resistant protective layer (11), a reflective heat insulation layer (12), and an active heat insulation layer (13). The wear-resistant protective layer (11) is made of stainless steel woven mesh; The reflective heat insulation layer (12) includes several reflective layers (121), and a partition layer (122) is provided between adjacent reflective layers (121). The reflective layers (121) are made of titanium alloy foil or aluminum foil, and the partition layer (122) is made of glass fiber. The active heat insulation layer (13) is made of ceramic fiber felt.

2. A sling sheath for lifting high-temperature materials according to claim 1, characterized in that: The stainless steel woven mesh is made of 316 or 310S stainless steel wire.

3. A sling sheath for lifting high-temperature materials according to claim 1, characterized in that: An adaptive bonding layer (14) is provided on the inner side of the active heat insulation layer (13), and the adaptive bonding layer (14) is made of rubber.

4. A sling sheath for lifting high-temperature materials according to claim 3, characterized in that: The adaptive bonding layer (14) is made of silicone rubber.

5. A sling sheath for lifting high-temperature materials according to claim 1, characterized in that: It also includes a handle component (2), which includes an operating handle (22) and a clamping plate (21) surrounding the outer side of the sheath body (1). The clamping plate (21) includes a first end (211) and a second end (212), which are connected by a bolt (231) assembly. One end of the operating handle (22) is located between the first end (211) and the second end (212), and the operating handle (22) is provided with a connecting hole for accommodating the bolt (231).

6. A sling sheath for lifting high-temperature materials according to claim 5, characterized in that: Under the locking action of the bolt (231) assembly, the clamping plate (21) clamps the sheath body (1) onto the sling (3).

7. A sling sheath for lifting high-temperature materials according to claim 5, characterized in that: The handle component (2) further includes two clamping blocks (24), each clamping block (24) having a slot (241) and a second through hole (242). The first end (211) and the second end (212) of the clamping piece (21) are respectively inserted into the slots (241) of the two clamping blocks (24), and the first through hole (213) of the first end (211) and the second end (212) for accommodating the bolt (231) are respectively aligned with the second through hole (242) of the two clamping blocks (24). The end of the clamping block (24) facing the sheath body (1) is provided with a pressing part (243) on the outside of the slot (241).

8. A sling sheath for lifting high-temperature materials according to claim 7, characterized in that: The slot (241) passes through the clamping block (24), and the first end (211) and the second end (212) of the clamping piece (21) are provided with a plurality of first through holes (213).

9. A sling sheath for lifting high-temperature materials according to claim 5, characterized in that: The operating handle (22) includes a pull rod (221), and a grip rod (222) is provided at one end of the pull rod (221) facing away from the sheath body (1).

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