Heat preservation cover, heat preservation cover lifting assembly and application of heat preservation cover lifting assembly in continuous casting billet heat preservation system

Abstract

The invention relates to the technical field of continuous casting billet heat preservation, and discloses a heat preservation cover and a heat preservation cover lifting assembly and application in a continuous casting billet heat preservation system.The heat preservation cover comprises a steel plate frame, a heat preservation cotton felt is fixedly assembled on the inner side wall of the steel plate frame, a ceramic fiber felt is fixedly installed on the inner side wall of the heat preservation cotton felt, and an electromagnetic valve set is fixedly assembled on the front side wall of the steel plate frame; igniters corresponding to the electromagnetic valve sets are fixedly arranged on the front side wall and the rear side wall of the ceramic fiber felt in a nested mode, arc-shaped spoilers are evenly arranged on the top of the inner side wall of the ceramic fiber felt, and the heat preservation cover unit covers the top of the conveying unit and can form a closed cavity with the conveying unit. Physical heat preservation, reduction of heat conduction paths and sealed heat preservation of continuous casting billets are completed through cooperation of the heat preservation cover unit and the conveying unit, meanwhile, an independent gas backflow heat preservation unit is formed in the heat preservation cover unit, penetrating flowing of air in the heat preservation cover unit is avoided, and the local heat preservation effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of continuous casting billet insulation, and in particular to a thermal insulation cover and a thermal insulation cover lifting component, and applications in a continuous casting billet insulation system. Background Art

[0002] Domestic hot rolling production lines for bars and wires usually use square continuous casting billets as raw materials, and all adopt roller direct loading process. However, since there is usually a long transportation distance from the continuous casting machine to the heating furnace, and the billet is affected by the rolling process, the temperature of the billet drops rapidly under the influence of the natural environment at high temperature. In particular, the continuous casting billet is in an open state during the process of being transported from the continuous casting machine to the rolling mill through the roller table. Therefore, how to reduce the heat loss of the billet during transportation to the rolling line has become a top priority for improving production energy efficiency.

[0003] An insulation transport line for continuous casting billets with application number CN202323485496.X is equipped with an insulation cover. The length of the insulation cover is adapted to the length of the roller. The insulation cover wraps the upper and lower spaces of the roller. The upper and lower areas of the conveying roller are wrapped and covered by the insulation cover. The continuous casting billets enter the conveying roller from the billet outlet of the casting machine. The heat dissipated by the continuous casting billets is blocked by the insulation cover to prevent the heat from being dissipated into the outside air, thereby effectively increasing the temperature of the continuous casting billets when they are transported to the rolling mill and reducing the heat waste of the continuous casting billets and the energy consumption of reheating during subsequent rolling.

[0004] However, in the actual use process, it was found that when the protective cover is used on the actual continuous casting billet conveyor line, it cannot be disassembled, and the conveying situation cannot be understood in real time. Moreover, a single protective cover can only slow down the temperature loss, and the insulation effect is very small. In addition, the conveying roller is in direct contact with the high-temperature continuous casting billet, and the temperature of the continuous casting billet will be directly transmitted to the conveying roller. At the same time, the continuous casting billet is always in the process of moving and conveying, resulting in the high-temperature continuous casting billet being accelerated to dissipate heat due to air convection in the protective cover during conveyance. At the same time, the poor sealing between the protective cover and the conveyor line will also aggravate the heat dissipation, resulting in a large temperature difference between the ends of the continuous casting billet.

[0005] Therefore, the present invention solves the above-mentioned problem by using a heat preservation cover and a heat preservation cover lifting assembly in a continuous casting billet heat preservation system. Summary of the invention

[0006] The object of the present invention is to provide a heat preservation cover and a heat preservation cover lifting assembly, and their application in a continuous casting billet heat preservation system, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heat-insulating cover, which is formed by splicing a plurality of heat-insulating cover units, and the heat-insulating cover units are located on the top of the conveying unit, and the heat-insulating treatment is realized during the continuous casting billet conveying process. The plurality of conveying units are combined to form a conveying line, and the conveying lines are arranged side by side, and the heat-insulating cover units include a steel plate frame, and the left and right ends of the steel plate frame are welded with packaging plates, and the inner side wall of the steel plate frame is fixedly equipped with heat-insulating cotton felt, and the inner side wall of the heat-insulating cotton felt is fixedly installed with a ceramic fiber felt, and the front side wall of the steel plate frame is fixedly equipped with a solenoid valve group, and the front and rear side walls of the ceramic fiber felt are fixedly nested with igniters corresponding to the solenoid valve group; The bottoms of the steel plate frame, the heat-insulating cotton felt and the ceramic fiber felt are all provided with retreat grooves, and the tops of the inner side walls of the ceramic fiber felt are evenly provided with arc-shaped spoilers.

[0008] Preferably, the conveying unit includes a conveying seat, the top of the conveying seat is evenly provided with casting pits along the length direction, a conveying roller is installed in the casting pit through a rotating shaft, a bearing seat matching the rotating shaft is fixed on the top of the conveying seat, a sprocket set is fixed on the front end of the rotating shaft, and a heat-insulating bearing is installed at the assembly point of the rotating shaft and the conveying seat.

[0009] Preferably, the retreat groove matches the rotating shaft, the ceramic fiber felt is located on the top of the conveying seat, and the width of the ceramic fiber felt is the same as the width of the casting pit; The igniter corresponds to the conveying roller, and the arc-shaped spoiler is arranged at the upper left of the casting pit.

[0010] Preferably, the right end of the conveying unit is set as a feed port, the left end of the conveying unit is set as a discharge port, and two groups of spoiler seats are symmetrically installed on the top of the conveying seat and between two adjacent groups of casting pits, and one group of spoiler seats located on the discharge port side is set as an arc reflux seat, and one group of spoiler seats located on the feed port side is set as an arc guide seat.

[0011] Preferably, each group of arc-shaped spoilers, arc-shaped reflux seats, arc-shaped guide seats and igniters located at the casting pit forms an independent insulation unit, and the tangent direction of the bottom end of the arc-shaped spoiler is opposite to the top of the arc-shaped reflux seat, and the top tangent angle of the arc-shaped guide seat is 90°.

[0012] Preferably, a windshield wall is fixed at the bottom of each group of casting pits, the width of the windshield wall matches the width of the conveying roller, and the windshield wall is vertically arranged.

[0013] The present invention also discloses a lifting assembly applied to the heat preservation cover as described above, including lifting units corresponding one to one with the heat preservation cover units, and each group of lifting units includes a hydraulic telescopic rod, the output end of the hydraulic telescopic rod is fixedly equipped with a lifting plate, the bottom of the lifting plate is fixed with a main lifting rope, the outer edge of the lifting plate is fixed with four groups of auxiliary lifting ropes, a main lifting ear corresponding to the main lifting rope is fixedly welded to the middle of the top of the steel plate frame, and auxiliary lifting ears corresponding to the four groups of auxiliary lifting ropes are fixed at the four corners of the top of the steel plate frame.

[0014] Preferably, it also includes fixed columns fixed on the outside of the multiple groups of conveying lines, and the tops of the two groups of fixed columns are fixedly installed with beams spanning the multiple groups of conveying lines, and the hydraulic telescopic rod is fixedly installed on the beams.

[0015] The invention also discloses an application of the lifting assembly as described above in a continuous casting billet insulation system.

[0016] Technical effects and advantages of the present invention: 1. The heat preservation cover unit in the present invention is covered on the top of the conveying unit, and can form a closed cavity with the conveying unit. The heat preservation cover unit and the conveying unit cooperate to achieve physical heat preservation of the continuous casting billet, reduce the heat conduction path, and seal the heat preservation.

[0017] 2. The present invention is provided with a heat-insulating bearing to reduce the heat transmitted outward from the rotating shaft. At the same time, the igniter works to reheat and keep the continuous casting billet warm during transportation, thereby replenishing heat and achieving temperature uniformity for the air inside the insulation cover unit. The billet pit corresponds to the igniter, and heat can be accumulated in the billet pit, thereby improving the insulation effect and reducing the speed at which the heat of the conveying roller is conducted outward.

[0018] 3. When the conveying roller in the present invention rotates, the air above the continuous casting billet can pass through the arc-shaped spoiler to achieve blocking turbulence, and the gas disturbed by the arc-shaped spoiler will be directly blown to the continuous casting billet to achieve heat preservation, while the gas on the front and rear sides of the continuous casting billet is blown to the arc-shaped reflux seat after being disturbed by the arc-shaped spoiler, and then introduced into the interior of the large casting billet pit, and then guided upward by the arc-shaped guide seat, so that the arc-shaped spoiler, the arc-shaped reflux seat, and the arc-shaped guide seat can form an independent gas reflux insulation unit, avoiding the through-flow of air inside the insulation cover unit, and can achieve local insulation of the continuous casting billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the heat preservation cover unit of the present invention; Figure 2 It is a schematic diagram of the assembly structure of the heat preservation cover unit and the transmission unit of the present invention; Figure 3 It is a schematic diagram of the structure of the heat preservation cover unit and the transmission unit in the first explosion state of the present invention; Figure 4 It is a schematic diagram of the structure of the heat preservation cover unit and the transmission unit in the second explosion state of the present invention; Figure 5 It is a schematic diagram of the structure of the transmission unit of the present invention; Figure 6 It is a schematic diagram of the first cross-sectional structure of the heat preservation cover unit and the transmission unit of the present invention; Figure 7 A second cross-sectional structural diagram of the heat preservation cover unit and the transmission unit of the present invention; Figure 8 It is a structural schematic diagram of the continuous casting billet conveying system of the present invention; Fig. 9 It is a schematic diagram of the assembly structure of the heat preservation cover unit, the transmission unit and the lifting unit of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the heat preservation cover unit, the conveying unit and the lifting unit of the present invention.

[0020] In the figure: 10, first conveyor line; 20, second conveyor line; 30, third conveyor line; 40, fourth conveyor line; 100, heat preservation cover unit; 101, steel plate frame; 102, packaging plate; 103, heat preservation cotton felt; 104, ceramic fiber felt; 105, solenoid valve group; 106, igniter; 107, retreat groove; 108, arc spoiler; 200, conveyor unit; 201, conveyor seat; 202, casting pit; 203, rotating shaft ; 204, conveyor roller; 205, bearing seat; 206, sprocket assembly; 207, insulation bearing; 208, arc reflux seat; 209, arc guide seat; 210, windbreak wall; 211, feed port; 212, discharge port; 300, lifting unit; 301, fixed column; 302, crossbeam; 303, hydraulic telescopic rod; 304, lifting plate; 305, main lifting rope; 306, auxiliary lifting rope; 307, main lifting ear; 308, auxiliary lifting ear. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Embodiment 1: like Figures 1 to 6As shown, the present embodiment discloses a heat-insulating cover, which is formed by splicing together several groups of heat-insulating cover units 100, and the heat-insulating cover unit 100 is located on the top of the conveying unit 200, so as to realize heat-insulating treatment during the conveying process of the continuous casting billet. Several groups of conveying units 200 are combined to form a conveying line, and the conveying lines are arranged side by side. In the present embodiment, four groups of conveying lines arranged side by side are shown: a first conveying line 10, a second conveying line 20, a third conveying line 30 and a fourth conveying line 40. The heat-insulating cover unit 100 is covered on the top of the conveying unit 200, and can form a closed cavity with the conveying unit 200 to complete the heat-insulating treatment of the continuous casting billet.

[0023] See also Figure 1-Figure 4 The insulation cover unit 100 includes a steel plate frame 101, and packaging plates 102 are welded and assembled on the left and right ends of the steel plate frame 101. Insulation cotton felt 103 is fixedly assembled on the inner wall of the steel plate frame 101, and ceramic fiber felt 104 is fixedly installed on the inner wall of the insulation cotton felt 103. A solenoid valve group 105 is fixedly assembled on the front side wall of the steel plate frame 101, and igniters 106 corresponding to the solenoid valve group 105 are fixedly nested on the front and rear side walls of the ceramic fiber felt 104. The steel plate frame 101 ensures the supporting strength of the insulation cover, and the insulation cotton felt 103 has the function of thermal insulation, which can greatly reduce the heat loss of the continuous casting billet during transportation on the conveyor line, and the ceramic fiber felt 104 still has high strength and stability under high temperature conditions, and has good thermal insulation effect, which can effectively cope with the high temperature environment when the continuous casting billet is insulated.

[0024] See also Figure 1 and Figure 3 The steel plate frame 101, the insulation cotton felt 103 and the ceramic fiber felt 104 are all provided with retreat grooves 107 at the bottom, and the top of the inner wall of the ceramic fiber felt 104 is evenly provided with arc-shaped spoilers 108. The arc-shaped spoilers 108 disturb the air inside the insulation cover unit 100, reduce the convection movement of the internal air, thereby reducing convective heat exchange and improving the insulation effect.

[0025] See also Figure 2-Figure 7The conveying unit 200 includes a conveying seat 201. The top of the conveying seat 201 is evenly provided with casting pits 202 along the length direction. The casting pit 202 is equipped with conveying rollers 204 that rotate through the rotating shaft 203. The conveying rollers 204 are used to convey the continuous casting billets, and the casting pit 202 provides a movement space for the conveying rollers 204. At the same time, the casting pit 202 is used to achieve the purpose of heat storage, so as to prevent the temperature of the continuous casting billets from being excessively transferred downward from the conveying seat 201, thereby reducing heat loss. A bearing seat 205 matching the rotating shaft 203 is fixed on the top of the conveying seat 201, and a sprocket set 206 is fixedly installed at the front end of the rotating shaft 203. A transmission sprocket is installed on the sprocket set 206 to facilitate driving the conveying units 2 on the same conveying line. 00 rotate synchronously to realize continuous transmission of the continuously cast billets. The assembly of the rotating shaft 203 and the transmission seat 201 is equipped with a heat-insulating bearing 207. The setting of the heat-insulating bearing 207 not only increases the support for the rotating shaft 203, but also utilizes the fit between itself and the rotating shaft 203 to achieve the sealing of the assembly of the insulation cover and the rotating shaft 203, thereby preventing external cold air from entering the interior of the insulation cover, thereby reducing convective heat exchange. It should be noted that when the transmission roller 204 transmits the continuously cast billets, the temperature on the continuously cast billets will be directly transmitted to the transmission roller 204, and then transmitted to the rotating shaft 203, thereby increasing the heat conduction path. Through the setting of the heat-insulating bearing 207, the efficiency of the rotating shaft 203 in transmitting heat to the outside is greatly weakened.

[0026] During the conveying process of the continuous casting billet, the temperature difference between the external environment and the continuous casting billet is large, so the heat loss of the continuous casting billet will be greatly increased. At this time, the cooperation of the insulation cover unit 100 and the conveying unit 200 is used to complete the insulation treatment of the continuous casting billet by physical insulation, reduction of heat conduction path and sealing insulation. Even with the insulation and heat insulation of the insulation cover, the continuous casting billet is always in contact with the conveying roller 204, which will still cause more heat of the continuous casting billet to be transmitted outward. At this time, the heat transmitted outward is reduced by the setting of the insulating bearing 207. At the same time, the igniter 106 works, which can reheat and keep the continuous casting billet warm during transportation to achieve heat replenishment. At the same time, it can also play a role in equalizing the temperature of the air inside the insulation cover unit 100 and reduce the convection of cold air and hot air.

[0027] The retreat groove 107 matches the rotating shaft 203, the ceramic fiber felt 104 is located on the top of the conveying seat 201, and the width of the ceramic fiber felt 104 is the same as the width of the casting pit 202, ensuring that the continuous casting billet will not interfere with the ceramic fiber felt 104 during transmission. At the same time, the igniter 106 corresponds to the conveying roller 204, and the arc spoiler 108 is arranged on the upper left of the casting pit 202. The solenoid valve group 105 can control the operation of each group of igniters 106. In this way, when the igniter 106 is working, the local temperature will rise. In this way, when the casting pit 202 and the igniter 106 correspond, the heat can be accumulated in the casting pit 202, thereby improving the insulation effect and reducing the speed at which the heat of the conveying roller 204 is conducted outward.

[0028] See also Figure 1 and Fig.10 The right end of the conveying unit 200 is set as a feed port 211, and the left end of the conveying unit 200 is set as a discharge port 212. Two groups of spoiler seats are symmetrically installed on the top of the conveying seat 201 and between the two adjacent groups of casting pits 202, and one group of spoiler seats located on the side of the discharge port 212 is set as an arc reflux seat 208, and one group of spoiler seats located on the side of the feed port 211 is set as an arc guide seat 209. The continuous casting billet enters from the feed port 211, and comes out from the discharge port 212 after passing through the insulation cover unit 100 and the conveying unit 200. When the continuous casting billet is conveyed, air flow inside the insulation cover unit 100 will be caused. The setting of the arc reflux seat 208 and the arc guide seat 209 can reduce the air flow speed under the continuous casting billet, avoid large-scale air flow, and thereby improve the insulation effect.

[0029] Each set of arc spoiler 108, arc reflux seat 208, arc guide seat 209 and igniter 106 located at the casting pit 202 forms an independent heat preservation unit, and the tangent direction of the bottom end of the arc spoiler 108 is directly opposite to the top of the arc reflux seat 208, and the top tangent angle of the arc guide seat 209 is 90°, and when the conveying roller 204 rotates, the air above the continuous casting billet can pass through the arc spoiler 108 to achieve blocking and turbulence, and the gas disturbed by the arc spoiler 108 will directly The gas at the front and rear sides of the continuous casting billet is blown toward the arc-shaped reflux seat 208 after being spoiled by the arc-shaped spoiler 108, and then introduced into the large casting billet pit 202, and then guided upward by the arc-shaped guide seat 209. In this way, the arc-shaped spoiler 108, the arc-shaped reflux seat 208, and the arc-shaped guide seat 209 can form an independent gas reflux insulation unit, which avoids the through-flow of air inside the insulation cover unit 100 and can achieve the local insulation effect on the continuous casting billet.

[0030] A windshield wall 210 is fixed at the bottom of each group of casting pits 202, and the width of the windshield wall 210 matches the width of the conveying roller 204, and the windshield wall 210 is vertically arranged. The purpose of setting the windshield wall 210 is to reduce the flow velocity of the gas inside the casting pit 202, improve the heat storage and insulation effect of the casting pit 202, reduce the convection movement of the internal air, and thus reduce the convection heat exchange.

[0031] Embodiment 2: The present embodiment discloses a lifting assembly applied to the heat preservation cover described in Embodiment 1, including lifting units 300 corresponding one-to-one to the heat preservation cover units 100, so as to facilitate the lifting units 300 to lift the heat preservation cover units 100, and each group of lifting units 300 includes a hydraulic telescopic rod 303, the output end of the hydraulic telescopic rod 303 is fixedly equipped with a lifting plate 304, the bottom of the lifting plate 304 is fixed with a main lifting rope 305, the outer edge of the lifting plate 304 is fixed with four groups of auxiliary lifting ropes 306, a main lifting ear 307 corresponding to the main lifting rope 305 is fixedly welded in the middle of the top of the steel plate frame 101, and auxiliary lifting ears 308 corresponding to the four groups of auxiliary lifting ropes 306 are fixed at the four corners of the top of the steel plate frame 101, and also include fixed columns 301 fixed on the outside of multiple groups of transmission lines, the tops of the two groups of fixed columns 301 are fixedly installed with beams 302 spanning the multiple groups of transmission lines, and the hydraulic telescopic rod 303 is fixedly installed on the beam 302.

[0032] During actual use, the hydraulic telescopic rod 303 extends outward, which can drive the lifting plate 304 to move downward, and then drive the insulation cover unit 100 to move downward through the main lifting rope 305 and four sets of auxiliary lifting ropes 306, and then sit on the conveying unit 200 to achieve sealing treatment. In this way, when the continuous casting billet is conveyed, the insulation cover unit 100 and the conveying unit 200 cooperate to achieve insulation and heat supplement treatment of the continuous casting billet, which greatly reduces the temperature difference between the head and tail of the continuous casting billet and has a good insulation effect.

[0033] Embodiment 3: The present embodiment discloses an application of a lifting assembly as described in Example 2 in a continuous casting billet insulation system. In actual application, the lifting unit 300 is always in an extended state to ensure that the insulation cover unit 100 is located on the conveying unit 200. When a certain section of the conveying unit 200 needs to be inspected and repaired, the corresponding lifting unit 300 can be individually controlled to retract, which can drive the insulation cover unit 100 of this section to move upward, making it convenient for observation and inspection and easy to operate.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat preservation cover, formed by splicing a plurality of heat preservation cover units (100), wherein the heat preservation cover unit (100) is located on the top of a conveying unit (200) to achieve heat preservation during the conveying process of a continuous casting billet, wherein the plurality of conveying units (200) are combined to form a conveying line, wherein the conveying line is arranged side by side, and wherein: The heat preservation cover unit (100) comprises a steel plate frame (101), the left and right ends of the steel plate frame (101) are welded with packaging plates (102), the inner wall of the steel plate frame (101) is fixedly equipped with a heat preservation cotton felt (103), the inner wall of the heat preservation cotton felt (103) is fixedly installed with a ceramic fiber felt (104), the front wall of the steel plate frame (101) is fixedly equipped with a solenoid valve group (105), and the front and rear side walls of the ceramic fiber felt (104) are fixedly nested with igniters (106) corresponding to the solenoid valve group (105); The bottoms of the steel plate frame (101), the heat-insulating cotton felt (103) and the ceramic fiber felt (104) are all provided with retreat grooves (107), and the top of the inner side wall of the ceramic fiber felt (104) is evenly provided with arc-shaped spoilers (108).

2. The heat preservation cover according to claim 1, characterized in that: The conveying unit (200) comprises a conveying seat (201), the top of the conveying seat (201) is evenly provided with casting pits (202) along the length direction, a conveying roller (204) is rotatably mounted in the casting pit (202) via a rotating shaft (203), a bearing seat (205) matching the rotating shaft (203) is fixed on the top of the conveying seat (201), a sprocket set (206) is fixed on the front end of the rotating shaft (203), and a heat-insulating bearing (207) is installed at the assembly point of the rotating shaft (203) and the conveying seat (201).

3. The heat preservation cover according to claim 2, characterized in that: The retreat groove (107) matches the rotating shaft (203), the ceramic fiber felt (104) is located on the top of the conveying seat (201), and the width of the ceramic fiber felt (104) is the same as the width of the casting pit (202); The igniter (106) corresponds to the conveying roller (204), and the arc-shaped spoiler (108) is arranged at the upper left of the casting pit (202).

4. The heat preservation cover according to claim 2, characterized in that: The right end of the conveying unit (200) is set as a feed port (211), and the left end of the conveying unit (200) is set as a discharge port (212). Two groups of spoiler seats are symmetrically installed at the top of the conveying seat (201) and between two adjacent groups of casting pits (202), and one group of spoiler seats located on one side of the discharge port (212) is set as an arc-shaped reflux seat (208), and one group of spoiler seats located on one side of the feed port (211) is set as an arc-shaped guide seat (209).

5. The heat preservation cover according to claim 4, characterized in that: Each group of arc-shaped spoilers (108), arc-shaped reflux seats (208), arc-shaped guide seats (209) and igniters (106) located at the casting pit (202) forms an independent heat-insulating unit, the tangent direction of the bottom end of the arc-shaped spoiler (108) is directly opposite to the top of the arc-shaped reflux seat (208), and the tangent angle of the top end of the arc-shaped guide seat (209) is 90°.

6. The heat preservation cover according to claim 2, characterized in that: A windshield wall (210) is fixed at the bottom of each group of casting pits (202); the width of the windshield wall (210) matches the width of the conveying roller (204); and the windshield wall (210) is arranged vertically.

7. A lifting assembly applied to the heat preservation cover according to any one of claims 1 to 6, characterized in that: The invention comprises lifting units (300) corresponding to the heat preservation cover units (100) one by one, and each group of lifting units (300) comprises a hydraulic telescopic rod (303), the output end of the hydraulic telescopic rod (303) is fixedly equipped with a lifting plate (304), the bottom of the lifting plate (304) is fixed with a main lifting rope (305), the outer edge of the lifting plate (304) is fixed with four groups of auxiliary lifting ropes (306), the middle of the top of the steel plate frame (101) is fixedly welded with a main lifting lug (307) corresponding to the main lifting rope (305), and the four corners of the top of the steel plate frame (101) are fixed with auxiliary lifting lugs (308) corresponding to the four groups of auxiliary lifting ropes (306).

8. The lifting assembly according to claim 7, characterized in that: It also includes fixed columns (301) fixed on the outside of the multiple groups of transmission lines, and two groups of fixed columns (301) are fixedly mounted with crossbeams (302) spanning the multiple groups of transmission lines on the top, and the hydraulic telescopic rod (303) is fixedly mounted on the crossbeam (302).

9. Use of the lifting assembly as claimed in claim 8 in a continuous casting billet insulation system.

Images