Heat preservation equipment for continuous casting steel billet manufacturing

Abstract

The invention relates to the technical field of casting, and discloses a heat preservation device for continuous casting steel billet manufacturing, which comprises a rack, a lifting mechanism and a metal plate blank placed on the top of the conveying mechanism, through the arrangement of the temperature control device, when the temperature in the cover body changes, air in an air cavity cylinder located on the inner wall of a limiting sleeve is heated to expand, a driving rod below is pushed to move, and the driving rod moves to push a first lever and a second lever to rotate; the other end of the first lever drives heat dissipation blades to rotate through transmission of a gear and a rack, the opening and closing degree can be controlled through temperature, the other end of the second lever drives a contact block to move on an electrifying rod through a telescopic rod through transmission of the gear and the rack, and when moving to the tail end of the electrifying rod, the contact block does not make contact with the electrifying rod. Therefore, the power-off process is completed, heating is stopped, and the temperature in the cover body can be accurately controlled.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and more specifically to a heat preservation device for continuous casting steel billet manufacturing. Background Technology

[0002] In the modern iron and steel metallurgical industry, continuous casting is a core link connecting the steelmaking and rolling processes. Its core function is to directly cast the high-temperature molten steel produced by the steelmaking furnace into steel billets with specific cross-sectional shapes, and then transport them to the rolling process for rolling. Compared with the traditional ingot casting process, continuous casting technology has become the standard production method of mainstream steel companies around the world due to its advantages of short process, high yield, and low energy consumption. At present, the global continuous casting ratio has exceeded 95%, which is a key support for the steel industry to achieve efficient and green production. However, in the entire process of continuous casting steel billets from the casting machine to entering the rolling heating furnace, temperature control has always been the core bottleneck affecting the quality of steel billets, subsequent rolling efficiency, and energy consumption. This problem has also directly promoted the research and development and application of continuous casting steel billet heat preservation equipment.

[0003] Insufficient existing technology: Previously, the industry mainly adopted simple covering, natural slow cooling or traditional heating and temperature compensation solutions, which have obvious technical defects, making it difficult to meet the needs of high-quality and high-efficiency production. The adaptability to steel billets of different sizes is also not perfect, and the temperature control of slabs is not precise enough. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a heat preservation device for continuous casting steel billet manufacturing, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat preservation device for continuous casting steel billet manufacturing, comprising a frame, a conveying mechanism fixedly installed inside the frame, and further comprising: a lifting mechanism and a metal slab placed on top of the conveying mechanism. The lifting mechanism includes a hanging plate, a lifting rack, and a first lifting gear. The hanging plate is fixedly installed on the top wall, and a supporting shell is fixedly installed on the top of the hanging plate. A supporting column is movably sleeved on the inner wall of the hanging plate, and a heat preservation device is fixedly connected to the bottom of the supporting column. A first motor is fixedly installed on the top of the hanging plate, and a second lifting gear is fixedly connected to the side of the first motor. The second lifting gear meshes with the lifting rack, and the first lifting gear meshes with the lifting rack. The first lifting gear and the second lifting gear are movably sleeved inside the supporting shell through a transmission rod. The bottom of the lifting rack is fixedly connected to the top of the heat preservation device, and a side assembly is fixedly installed on the side of the heat preservation device.

[0006] Furthermore, the heat preservation device includes a heat preservation cover, an electric heating tube that is fixedly installed around the inner wall of the heat preservation cover in several circles, a hydraulic rod that is fixedly installed at the bottom of the inner wall of the heat preservation cover, a lifting plate that is fixedly connected to the bottom of the hydraulic rod, a sealing strip that is fixedly installed on each side of the lifting plate, several anti-collision springs that are fixedly installed at the bottom of each side of the inner wall of the heat preservation cover, an anti-collision plate that is fixedly installed at the other end of the anti-collision springs, a laser detector that is fixedly installed on the inner wall of the heat preservation cover, and a temperature control device that is installed on the inner wall of the heat preservation cover.

[0007] Furthermore, the temperature control device includes a support plate fixedly installed on the inner wall of the insulation cover and a heating device movably connected to the inner wall of the insulation cover. A detection reaction mechanism is fixedly installed at the bottom of the support plate. One end of the detection reaction mechanism is movably connected to an opening and closing mechanism, and the other end of the detection reaction mechanism is movably connected to the heating device.

[0008] Furthermore, the detection reaction mechanism includes a limiting sleeve fixedly installed at the bottom of the support plate and a limiting support sleeve fixedly installed on the inner wall of the side of the heat insulation cover. The limiting sleeve is cylindrical and has threads on its inner wall. An air chamber is movably connected to the inner wall of the limiting sleeve via the threads. The outer side of the air chamber is threaded. A piston rod is movably sleeved on the inner wall of the air chamber. An active rod is movably sleeved on the inner wall of the limiting support sleeve. A retaining ring is fixedly sleeved on the middle of the active rod. A first return spring is movably sleeved on the outer surface of the active rod. The top of the first return spring is fixedly connected to the bottom of the retaining ring. The bottom of the first return spring is fixedly connected to the top of the limiting support sleeve. A first lever and a second lever are movably connected to the bottom inner wall of the active rod via a pin. A first sliding groove is formed on the side of the second lever.

[0009] Furthermore, the support plate includes a half gear fixedly installed at the other end of the first lever, a ventilation blade movably installed on the inner wall of the side door, and a first rack movably sleeved on the inner wall of the side assembly. The ventilation blade is movably connected to the inner wall of the side assembly. A connecting rod is fixedly connected to the side of the ventilation blade. A first transmission gear is fixedly installed at the other end of the connecting rod. A second sliding groove that can cooperate with the inner wall of the side assembly is opened on the side of the first rack. A second return spring is fixedly installed at the bottom of the first rack. The bottom of the second return spring is fixedly installed on the inner wall of the side assembly. The first transmission gear meshes with the first rack, and the half gear meshes with the first transmission gear.

[0010] Furthermore, the heating device includes a fixed sleeve fixedly installed on the inner wall of the insulation cover, a movable sleeve rod movably sleeved on the inner wall of the insulation cover, and a sliding plate fixedly installed on the inner wall of the insulation cover. An insulating rod is fixedly connected to the inner wall of the fixed sleeve, and an energizing rod is fixedly sleeved on the outer side of the insulating rod. A second gear is movably sleeved on the other end of the movable sleeve rod. A telescopic rod is fixedly installed on the side of the second gear. A contact block is movably connected to the other end of the telescopic rod through a pin. The contact block contacts the energizing rod. When the second gear rotates, it will drive the telescopic rod to rotate, thereby causing the contact block at the top of the telescopic rod to disengage from the energizing rod. A second rack is movably sleeved on the side of the sliding plate. The bottom of the second rack is located in the first sliding groove, and the second rack meshes with the second gear.

[0011] Furthermore, the first lever and the second lever are located on both sides of the active rod and are symmetrically distributed. The first lever is movably connected to the inner wall of the insulation cover by bolts at one-fifth of the end near the active rod, and the second lever is movably connected to the inner wall of the insulation cover by bolts at one-fifth of the end near the active rod.

[0012] Furthermore, the side assembly includes a side door fixedly installed on the side of the insulation cover, the surface of the side door is provided with heat dissipation holes, a pressure relief valve is fixedly installed on the inner wall of the side door, a fireproof canvas is fixedly installed on the bottom of the side door, and several counterweights are fixedly installed on the bottom inside the fireproof canvas.

[0013] The technical effects and advantages of this invention are as follows: This invention incorporates a temperature control device. When the temperature inside the enclosure changes, the gas in the air chamber located on the inner wall of the limiting sleeve expands due to heat, pushing the lower active rod to move. The movement of the active rod drives the first lever and the second lever to rotate. The other end of the first lever drives the heat dissipation vane to rotate through a gear and rack transmission. Moreover, the opening and closing size can be controlled by temperature. The other end of the second lever, through a gear and rack transmission, drives the contact block to move on the energized rod through a telescopic rod. When it moves to the end of the energized rod, it does not make contact with the energized rod, thereby completing the power-off process and stopping heating. This facilitates precise control of the temperature inside the enclosure.

[0014] This invention features a lifting mechanism that lowers the cover to the working position to keep the slab warm during operation. In the event of a safety accident or device malfunction, the cover is raised, which helps prevent the cover from maintaining a high temperature for a long time, thus avoiding rapid aging of the device. It also facilitates the maintenance of the device.

[0015] This invention incorporates an anti-collision device to prevent inevitable collisions during transportation of the slab, thereby reducing the impact of deformation caused by the collision. The inlet and outlet feature a fireproof canvas skirt design, with an additional counterweight at the bottom that fits snugly against the bottom, which not only blocks the entry of cold air but also facilitates the entry and exit of the slab. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the lifting mechanism extrusion structure of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the present invention; Figure 4 This is a schematic diagram of the overall structure of the temperature control device of the present invention; Figure 5 This is a schematic diagram of the detection reaction mechanism of the present invention; Figure 6 This is a schematic diagram of the opening and closing mechanism of the present invention; Figure 7 This is a schematic diagram of the heating device structure of the present invention; Figure 8 This is a schematic diagram of the side assembly structure of the present invention; Figure 9 This is an exploded view of the detection reaction mechanism of the present invention.

[0017] The attached figures are labeled as follows: 1. Frame; 2. Conveying mechanism; 3. Insulation device; 31. Insulation cover; 32. Electric heating tube; 33. Hydraulic rod; 34. Sealing strip; 35. Lifting plate; 36. Anti-collision plate; 37. Temperature control device; 371. Detection and reaction mechanism; 3711. First return spring; 3712. Limiting sleeve; 3713. Air chamber; 3714. Piston rod; 3715. Retaining ring; 3716. Limiting support sleeve; 3717. Driving rod; 3718. First lever; 3719. Second lever; 372. Support plate; 373. Opening and closing mechanism; 3731. Half gear; 3732. Connecting rod; 3733. First transmission gear; 3734. Second return spring; 3735. Second slide groove; 3736. 3737. First rack; 374. Ventilation vane; 375. First slide rail; 376. Heating device; 3751. Slide plate; 3752. Second rack; 3753. Second gear; 3754. Movable sleeve rod; 3755. Telescopic rod; 3756. Contact block; 3757. Insulating rod; 3758. Power-conducting rod; 3759. Fixed sleeve; 38. Anti-collision spring; 39. Laser detector; 4. Lifting mechanism; 41. Support shell; 42. Support column; 43. Hanging plate; 44. Lifting rack; 45. First motor; 46. First lifting gear; 47. Second lifting gear; 5. Metal slab; 6. Side assembly; 61. Side door; 62. Heat dissipation hole; 63. Pressure relief valve; 64. Fireproof canvas; 65. Counterweight. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The heat preservation equipment for continuous casting steel billet manufacturing involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Reference Figures 1 to 2This invention provides a heat preservation device for continuous casting steel billet manufacturing, including a frame 1, a conveying mechanism 2 fixedly installed inside the frame 1, and a lifting mechanism 4 and a metal slab 5 placed on top of the conveying mechanism 2. The lifting mechanism 4 includes a hanging plate 43, a lifting rack 44, and a first lifting gear 46. The hanging plate 43 is fixedly installed on the top wall, and a supporting shell 41 is fixedly installed on the top of the hanging plate 43. A supporting column 42 is movably sleeved on the inner wall of the hanging plate 43, and a heat preservation device 3 is fixedly connected to the bottom of the supporting column 42. A first motor 45 is fixedly installed on the top of the hanging plate 43, and a second lifting gear 47 is fixedly connected to the side of the first motor 45. The second lifting gear 47 meshes with the lifting rack 44, and the first lifting gear 46 meshes with the lifting rack 44. The first lifting gear 46 and the second lifting gear 47 are movably sleeved inside the supporting shell 41 through a transmission rod. The bottom of the lifting rack 44 is fixedly connected to the top of the heat preservation device 3, and a side assembly 6 is fixedly installed on the side of the heat preservation device 3.

[0020] In this embodiment, the first motor 45 drives the second lifting gear 47 to rotate. The second lifting gear 47 meshes with the lifting rack 44, causing the lifting rack 44 to move up and down. The first lifting gear 46 rotates along with the lifting rack 44. Here, the first lifting gear 46 only plays a supporting role. The slab is transported on the top of the frame 1 through the transmission mechanism 2 and is kept warm inside the insulation device 3. When the air pressure inside the insulation cover 31 exceeds the safe range, the metal slab 5 located on the inner wall of the side assembly 6 will depressurize the inside of the insulation cover 31.

[0021] refer to Figure 3 The heat preservation device 3 includes a heat preservation cover 31. An electric heating tube 32 with several turns is fixedly installed on the inner wall of the heat preservation cover 31. A hydraulic rod 33 is fixedly installed on the bottom of the inner wall of the heat preservation cover 31. A lifting plate 35 is fixedly connected to the bottom of the hydraulic rod 33. A sealing strip 34 is fixedly installed on each side of the lifting plate 35. Several anti-collision springs 38 are fixedly installed on the bottom of each side of the inner wall of the heat preservation cover 31. An anti-collision plate 36 is fixedly installed on the other end of the anti-collision springs 38. A laser detector 39 is fixedly installed on the inner wall of the heat preservation cover 31. A temperature control device 37 is installed on the inner wall of the heat preservation cover 31.

[0022] In this embodiment, the temperature control device 37 can turn the electric heating tube 32 on and off by changing the temperature, controlling the electric heating tube 32 to heat the inside of the insulation cover 31. At the same time, it can control the opening and closing of the ventilation blades 3737 to dissipate heat and maintain the temperature inside the insulation cover 31 at an ideal temperature. The hydraulic rod 33 can push the lifting plate 35 to move, which can be used to adjust the space inside the insulation cover 31 to better reduce the space and keep the plate warm. When the plate moves inside the insulation cover 31, collisions are inevitable. The anti-collision plates 36 located on both sides of the inner wall of the insulation cover 31 can be buffered by the anti-collision springs 38 to prevent collisions.

[0023] refer to Figure 4 The temperature control device 37 includes a support plate 372 fixedly installed on the inner wall of the insulation cover 31 and a heating device 375 movably connected to the inner wall of the insulation cover 31. A detection reaction mechanism 371 is fixedly installed at the bottom of the support plate 372. One end of the detection reaction mechanism 371 is movably connected to an opening and closing mechanism 373, and the other end of the detection reaction mechanism 371 is movably connected to the heating device 375. refer to Figure 5 The detection reaction mechanism 371 includes a limiting sleeve 3712 fixedly installed at the bottom of the support plate 372 and a limiting support sleeve 3716 fixedly installed on the inner wall of the side of the heat insulation cover 31. The limiting sleeve 3712 is cylindrical and has threads on its inner wall. An air chamber cylinder 3713 is movably connected to the inner wall of the limiting sleeve 3712 via threads. The outer side of the air chamber cylinder 3713 has threads. A piston rod 3714 is movably sleeved on the inner wall of the air chamber cylinder 3713. An active rod 371 is movably sleeved on the inner wall of the limiting support sleeve 3716. 7. A retaining ring 3715 is fixedly sleeved in the middle of the active rod 3717. A first return spring 3711 is movably sleeved on the outer surface of the active rod 3717. The top of the first return spring 3711 is fixedly connected to the bottom of the retaining ring 3715. The bottom of the first return spring 3711 is fixedly connected to the top of the limiting support sleeve 3716. A first lever 3718 and a second lever 3719 are movably connected to the bottom inner wall of the active rod 3717 by a pin. A first groove 374 is opened on the side of the second lever 3719.

[0024] In this embodiment, the gas inside the gas chamber 3713 expands due to heat, pushing the piston rod 3714 located on the inner wall downwards, which in turn pushes the active rod 3717 located below it downwards. Under the action of the bolt, the ends of the first lever 3718 and the second lever 3719 away from the active rod 3717 will rotate upwards. When the temperature drops, the spring compressed between the retaining ring 3715 and the limiting support sleeve 3716 will push the active rod 3717 to reset. When different steel billets require different heat preservation temperatures, the distance between the limiting sleeve 3712 and the gas chamber 3713 can be adjusted by rotating the thread. When a lower temperature is required, the distance between the gas chamber 3713 and the limiting sleeve 3712 is shortened, resulting in a smaller stroke and a smaller trigger stroke, thereby lowering the temperature. When a higher temperature is required, the distance is increased, resulting in a larger stroke and a larger trigger stroke, thereby increasing the temperature.

[0025] refer to Figure 6 The support plate 372 includes a half gear 3731 fixedly installed at the other end of the first lever 3718, a ventilation blade 3737 movably installed on the inner wall of the side door 61, and a first rack 3736 movably sleeved on the inner wall of the side assembly 6. The ventilation blade 3737 is movably connected to the inner wall of the side assembly 6. A connecting rod 3732 is fixedly connected to the side of the ventilation blade 3737. A first transmission gear 3733 is fixedly installed at the other end of the connecting rod 3732. A second sliding groove 3735 that can cooperate with the inner wall of the side assembly 6 is opened on the side of the first rack 3736. A second return spring 3734 is fixedly installed at the bottom of the first rack 3736. The bottom of the second return spring 3734 is fixedly installed on the inner wall of the side assembly 6. The first transmission gear 3733 meshes with the first rack 3736, and the half gear 3731 meshes with the first transmission gear 3733.

[0026] In this embodiment, the first lever 3718 drives the half gear 3731 to perform circular motion. When it contacts the first transmission gear 3733, it drives the first transmission gear 3733 to rotate. The first transmission gear 3733 drives the ventilation vane 3737 to open for heat dissipation. The first transmission gear 3733 drives the first rack 3736 to move downward, and the second return spring 3734 is compressed. When the temperature drops, the second return spring 3734 resets, which also drives the ventilation vane 3737 to reset.

[0027] refer to Figure 7The heating device 375 includes a fixed sleeve 3759 fixedly installed on the inner wall of the insulation cover 31, a movable sleeve rod 3754 movably sleeved on the inner wall of the insulation cover 31, and a sliding plate 3751 fixedly installed on the inner wall of the insulation cover 31. An insulating rod 3757 is fixedly connected to the inner wall of the fixed sleeve 3759, and an electric rod 3758 is fixedly sleeved on the outer side of the insulating rod 3757. A second gear 3753 is movably sleeved at the other end of the movable sleeve rod 3754, and a telescopic rod 3755 is fixedly installed on the side of the second gear 3753. The other end of the telescopic rod 3755 is movably connected to a contact block 3756 via a pin. The contact block 3756 contacts the energized rod 3758. When the second gear 3753 rotates, it will drive the telescopic rod 3755 to rotate, thereby causing the contact block 3756 at the top of the telescopic rod 3755 to disengage from the energized rod 3758. The side of the contact slide 3751 is movably sleeved with a second rack 3752. The bottom of the second rack 3752 is located in the first slide groove 374, and the second rack 3752 meshes with the second gear 3753.

[0028] In this embodiment, the end of the second lever 3719 away from the active lever 3717 makes a circular motion, which drives the second rack 3752 to move upward through the first slide groove 374. The second rack 3752 drives the second gear 3753 to rotate by meshing with the second gear 3753. The second gear 3753 drives the contact block 3756 to slide on the energized rod 3758 through the telescopic rod 3755. When the contact with the energized rod 3758 is broken, the electric heating tube 32 is de-energized.

[0029] refer to Figure 5 The first lever 3718 and the second lever 3719 are located on both sides of the active rod 3717 and are symmetrically distributed. The first lever 3718 is movably connected to the inner wall of the heat insulation cover 31 by bolts at one-fifth of the end located near the active rod 3717. The second lever 3719 is movably connected to the inner wall of the heat insulation cover 31 by bolts at one-fifth of the end located near the active rod 3717.

[0030] refer to Figure 8 The side assembly 6 includes a side door 61 fixedly installed on the side of the heat insulation cover 31. The surface of the side door 61 is provided with heat dissipation holes 62. A pressure relief valve 63 is fixedly installed on the inner wall of the side door 61. A fireproof canvas 64 is fixedly installed at the bottom of the side door 61. Several counterweights 65 are fixedly installed at the bottom inside the fireproof canvas 64.

[0031] The working principle of this invention is as follows: During operation, the first motor 45 located at the top starts, driving the second lifting gear 47 to rotate. The second lifting gear 47, through meshing, drives the lifting rack 44 to move downwards. The lifting rack 44 drives the insulation device 3 to move downwards. The movement stops when the bottom of the insulation cover 31 contacts the top of the frame 1. The metal slab 5 is placed on the top of the frame 1 and transported to the inside of the insulation cover 31. The hydraulic rod 33 pushes the lifting plate 35 to adjust the inside of the insulation cover 31 to a space suitable for the size of the slab. At this time, the inside of the insulation device 3 is at room temperature. When the device is powered on, the electric heating tube 32 located on the inner wall of the insulation cover 31 heats the device, making the inside of the insulation cover 31... When the temperature reaches the ideal state, the internal temperature of the device continuously rises. The gas in the gas chamber 3713 located on the inner wall of the limiting sleeve 3712 expands due to heat, pushing the piston rod 3714 located on its inner wall downwards. This pushes the driving rod 3717 below it. Due to the action of the bolts, the ends of the first lever 3718 and the second lever 3719 away from the driving rod 3717 move upwards. The first lever 3718 drives the half gear 3731 to perform a circular motion. At the beginning of the motion, the half gear 3731 is not in contact with the first transmission gear 3733. The second lever 3719 pushes the second rack 3752 upwards. The second rack 3752 drives the second gear 3753 through meshing with it. As gear 3753 rotates, the second gear 3753 drives the contact block 3756 to slide downwards via the telescopic rod 3755. Initially, the contact block 3756 contacts the energized rod 3758, energizing the electric heating tube 32 to heat the device. When the contact block 3756 just disengages from the energized rod 3758, the device stops energizing, and the electric heating tube 32 stops heating. At this point, the temperature range is the optimal holding temperature for billet manufacturing. The half gear 3731 also just contacts the first transmission gear 3733. As the temperature continues to rise, the half gear 3731 meshes with the first transmission gear 3733, causing the first transmission gear 3733 to rotate. The first transmission gear 3733 is connected... Rod 3732 drives ventilation blade 3737 to rotate, controlling the opening and closing angle of ventilation blade 3737 to cool down. The higher the temperature, the larger the opening and closing angle of ventilation blade 3737, and the better the cooling effect. The first transmission gear 3733 drives the first rack 3736 to move downward through meshing with the first rack 3736, and the second return spring 3734 is pressed. When the temperature drops to the ideal temperature range, the second return spring 3734 will reset the ventilation blade 3737 to stop heat dissipation. When the temperature is within the ideal range, the contact block 3756 will be located at the lower part of the energized rod 3758, preventing it from being energized and heated. This allows the temperature to be automatically maintained at the most suitable temperature for steel billet insulation. When insulating steel billets with different insulation requirements, the distance between the limiting sleeve 3712 and the air chamber 3713 can be adjusted by rotating the thread. When a lower temperature is required, the distance between the air chamber 3713 and the limiting sleeve 3712 is shortened, resulting in a smaller stroke and thus a smaller trigger stroke, thereby lowering the temperature. When a higher temperature is required, the distance is increased, resulting in a larger stroke and thus a larger trigger stroke, thereby increasing the temperature. After the device completes its work, the lower part of the device is de-energized, and the upper first motor 45 drives the heat preservation device 3 to move upward back to its initial position.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A heat preservation device for continuous casting steel billet manufacturing, comprising a frame (1), characterized in that: The frame (1) is internally fixedly equipped with a conveying mechanism (2), and also includes a lifting mechanism (4) and a metal blank (5) placed on top of the conveying mechanism (2). The lifting mechanism (4) includes a hanging plate (43), a lifting rack (44), and a first lifting gear (46). The hanging plate (43) is fixedly installed on the top wall. A supporting shell (41) is fixedly installed on the top of the hanging plate (43). A supporting column (42) is movably sleeved on the inner wall of the hanging plate (43). A heat preservation device (3) is fixedly connected to the bottom of the supporting column (42). A first motor (45) is fixedly installed on the top. A second lifting gear (47) is fixedly connected to the side of the first motor (45). The second lifting gear (47) meshes with a lifting rack (44). The first lifting gear (46) meshes with the lifting rack (44). The first lifting gear (46) and the second lifting gear (47) are movably sleeved inside the support shell (41) through a transmission rod. The bottom of the lifting rack (44) is fixedly connected to the top of the heat preservation device (3). A side assembly (6) is fixedly installed on the side of the heat preservation device (3).

2. The heat preservation equipment for continuous casting steel billet manufacturing according to claim 1, characterized in that: The heat preservation device (3) includes a heat preservation cover (31), an electric heating tube (32) with several turns is fixedly installed on the inner wall of the heat preservation cover (31), a hydraulic rod (33) is fixedly installed at the bottom of the inner wall of the heat preservation cover (31), a lifting plate (35) is fixedly connected to the bottom of the hydraulic rod (33), a sealing strip (34) is fixedly installed on both sides of the lifting plate (35), several anti-collision springs (38) are fixedly installed on the bottom of both sides of the inner wall of the heat preservation cover (31), an anti-collision plate (36) is fixedly installed at the other end of the anti-collision spring (38), a laser detector (39) is fixedly installed on the inner wall of the heat preservation cover (31), and a temperature control device (37) is installed on the inner wall of the heat preservation cover (31).

3. The heat preservation equipment for continuous casting steel billet manufacturing according to claim 2, characterized in that: The temperature control device (37) includes a support plate (372) fixedly installed on the inner wall of the heat insulation cover (31) and a heating device (375) movably connected to the inner wall of the heat insulation cover (31). A detection reaction mechanism (371) is fixedly installed at the bottom of the support plate (372). One end of the detection reaction mechanism (371) is movably connected to an opening and closing mechanism (373), and the other end of the detection reaction mechanism (371) is movably connected to the heating device (375).

4. The heat preservation equipment for continuous casting steel billet manufacturing according to claim 3, characterized in that: The detection reaction mechanism (371) includes a limiting sleeve (3712) fixedly installed at the bottom of the support plate (372) and a limiting support sleeve (3716) fixedly installed on the inner wall of the side of the heat insulation cover (31). The limiting sleeve (3712) is cylindrical and has threads on its inner wall. The inner wall of the limiting sleeve (3712) is movably connected to an air chamber cylinder (3713) via threads. The outer side of the air chamber cylinder (3713) is threaded. A piston rod (3714) is movably sleeved on the inner wall of the air chamber cylinder (3713). An active rod (3717) is movably sleeved on the inner wall of the limiting support sleeve (3716). A retaining ring (3715) is fixedly sleeved in the middle of the active rod (3717), and a first return spring (3711) is movably sleeved on the outer surface of the active rod (3717). The top of the first return spring (3711) is fixedly connected to the bottom of the retaining ring (3715), and the bottom of the first return spring (3711) is fixedly connected to the top of the limiting support sleeve (3716). A first lever (3718) and a second lever (3719) are movably connected to the bottom inner wall of the active rod (3717) by a pin. A first groove (374) is provided on the side of the second lever (3719).

5. The heat preservation equipment for continuous casting steel billet manufacturing according to claim 3, characterized in that: The support plate (372) includes a half gear (3731) fixedly installed at the other end of the first lever (3718), a ventilation blade (3737) movably installed on the inner wall of the side door (61), and a first rack (3736) movably sleeved on the inner wall of the side assembly (6). The ventilation blade (3737) is movably connected to the inner wall of the side assembly (6). A connecting rod (3732) is fixedly connected to the side of the ventilation blade (3737), and a first transmission gear is fixedly installed at the other end of the connecting rod (3732). (3733), the side of the first rack (3736) is provided with a second sliding groove (3735) that can cooperate with the inner wall of the side assembly (6), the bottom of the first rack (3736) is fixedly installed with a second return spring (3734), the bottom of the second return spring (3734) is fixedly installed on the inner wall of the side assembly (6), the first transmission gear (3733) meshes with the first rack (3736), and the half gear (3731) meshes with the first transmission gear (3733).

6. The heat preservation equipment for continuous casting steel billet manufacturing according to claim 3, characterized in that: The heating device (375) includes a fixed sleeve (3759) fixedly installed on the inner wall of the heat insulation cover (31), a movable sleeve rod (3754) movably sleeved on the inner wall of the heat insulation cover (31), and a sliding plate (3751) fixedly installed on the inner wall of the heat insulation cover (31). An insulating rod (3757) is fixedly connected to the inner wall of the fixed sleeve (3759), and an electric rod (3758) is fixedly sleeved on the outer side of the insulating rod (3757). A second gear (3753) is movably sleeved at the other end of the movable sleeve rod (3754), and a telescopic rod (3755) is fixedly installed on the side of the second gear (3753). The other end of the telescopic rod (3755) is movably connected to a contact block (3756) via a pin. The contact block (3756) contacts the energized rod (3758). When the second gear (3753) rotates, it will drive the telescopic rod (3755) to rotate, thereby causing the contact block (3756) at the top of the telescopic rod (3755) to disengage from the energized rod (3758). The side of the sliding plate (3751) is movably fitted with a second rack (3752). The bottom of the second rack (3752) is located in the first groove (374), and the second rack (3752) meshes with the second gear (3753).

7. The heat preservation equipment for continuous casting steel billet manufacturing according to claim 4, characterized in that: The first lever (3718) and the second lever (3719) are located on both sides of the active rod (3717) and are symmetrically distributed. The first lever (3718) is movably connected to the inner wall of the heat insulation cover (31) by bolts at one-fifth of the end located near the active rod (3717). The second lever (3719) is movably connected to the inner wall of the heat insulation cover (31) by bolts at one-fifth of the end located near the active rod (3717).

8. The heat preservation equipment for continuous casting steel billet manufacturing according to claim 1, characterized in that: The side assembly (6) includes a side door (61) fixedly installed on the side of the heat insulation cover (31). The surface of the side door (61) is provided with heat dissipation holes (62). A pressure relief valve (63) is fixedly installed on the inner wall of the side door (61). A fireproof canvas (64) is fixedly installed at the bottom of the side door (61). Several counterweights (65) are fixedly installed inside the bottom of the fireproof canvas (64).

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