A heat retaining device for manufacturing a continuous casting billet

Abstract

The application relates to the casting technical field and discloses a heat preservation equipment for manufacturing continuous casting billets, which comprises a rack, a conveying mechanism fixedly arranged in the inside of the rack, a lifting mechanism and a metal slab placed on the top of the conveying mechanism; the heat preservation equipment is provided with a temperature control device; when the temperature in the cover body changes, the gas in the air cavity cylinder on the inner wall of the limiting sleeve expands due to heating, the active rod below is pushed to move, the first lever and the second lever are pushed to rotate by the movement of the active rod, the other end of the first lever drives the heat dissipation leaves to rotate through the transmission of the gear and the rack, the opening and closing size can be controlled through the temperature, the other end of the second lever drives the contact fast to move on the electrified rod through the transmission of the gear and the rack and the telescopic rod, when the contact fast moves to the end of the electrified rod, the contact fast does not contact the electrified rod, so that the power-off process is completed, the heating is stopped, and the temperature in the cover body can be accurately controlled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casting, more particularly to a heat preservation equipment for continuous casting billet manufacturing. BACKGROUND

[0002] In the modern steel metallurgical industry system, continuous casting is the core link connecting the steelmaking and rolling processes, and its core function is to directly cast the high-temperature molten steel produced by the steelmaking furnace into a steel billet with a specific cross-sectional shape, and then deliver it to the rolling process for rolling processing. Compared with the traditional mold casting process, the continuous casting technology has become the standard production method for global mainstream steel enterprises 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 the key support for the realization of efficient and green production of the steel industry. However, in the whole process from the output of the continuous casting billet to the entry into the rolling heating furnace, temperature control is always the core bottleneck affecting the quality of the billet, the subsequent rolling efficiency, and energy consumption. This problem has directly promoted the research and application of continuous casting billet heat preservation equipment.

[0003] Prior art deficiencies: Prior to this, the industry mainly used simple covering, natural slow cooling or traditional heating and temperature compensation schemes, which had obvious technical defects and could not meet the high-quality and high-efficiency production requirements. The adaptability to different sizes of output steel billets was also not perfect, and the temperature control of the slab was not precise enough. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a heat preservation equipment for continuous casting billet manufacturing to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a heat preservation equipment for continuous casting billet manufacturing, comprising a rack, a conveying mechanism fixedly installed inside the rack, a lifting mechanism, and a metal slab placed on the top of the conveying mechanism. The lifting mechanism comprises a lifting plate, a lifting rack, and a first lifting gear. The lifting plate is fixedly installed on the top wall. A support shell is fixedly installed on the top of the lifting plate. A support column is movably sleeved on the inner wall of the lifting plate. A heat preservation device is fixedly connected to the bottom of the support column. A first motor is fixedly installed on the top of the lifting plate. A second lifting gear is fixedly connected to the side of the first motor. The second lifting gear is engaged with the lifting rack. The first lifting gear is engaged with the lifting rack. The first lifting gear and the second lifting gear are movably sleeved in the support shell through a transmission rod. The bottom of the lifting rack is fixedly connected to the top of the heat preservation device. A side assembly is fixedly installed on the side of the heat preservation device.

[0006] Further, the heat preservation device comprises a heat preservation cover, a plurality of electric heating pipes are fixedly installed on the inner wall of the heat preservation cover, a hydraulic rod is fixedly installed on the bottom of the inner wall of the heat preservation cover, a lifting plate is fixedly connected to the bottom of the hydraulic rod, a sealing strip is fixedly installed on each side of the lifting plate, a plurality of anti-collision springs are fixedly installed on the bottom of the inner wall of the heat preservation cover, an anti-collision plate is fixedly installed on the other end of the anti-collision spring, a laser detector is fixedly installed on the inner wall of the heat preservation cover, and a temperature control device is installed on the inner wall of the heat preservation cover.

[0007] Further, the temperature control device comprises a support plate fixedly installed on the inner wall of the heat preservation cover and a heating device movably connected to the inner wall of the heat preservation cover, a detection reaction mechanism is fixedly installed on the bottom of the support plate, an opening and closing mechanism is movably connected to one end of the detection reaction mechanism, and the other end of the detection reaction mechanism is movably connected to the heating device.

[0008] Further, the detection reaction mechanism comprises a limiting sleeve fixedly installed on the bottom of the support plate and a limiting support sleeve fixedly installed on the inner wall of the side of the heat preservation cover, the limiting sleeve is cylindrical, a thread is formed in the inner wall of the limiting sleeve, an air cavity cylinder is movably connected to the inner wall of the limiting sleeve through the thread, a thread is formed in the outer side of the air cavity cylinder, a piston rod is movably sleeved on the inner wall of the air cavity cylinder, a main rod is movably sleeved on the inner wall of the limiting support sleeve, a check ring is fixedly sleeved on the middle part of the main rod, a first return spring is movably sleeved on the outer surface of the main rod, the top of the first return spring is fixedly connected to the bottom of the check 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 main rod through a pin, and a first sliding groove is formed in the side of the second lever.

[0009] Further, the support plate comprises a half gear fixedly installed on the other end of the first lever, a ventilation leaf 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 leaf is movably connected to the inner wall of the side assembly, a connecting rod is fixedly connected to the side of the ventilation leaf, a first transmission gear is fixedly installed on the other end of the connecting rod, a second sliding groove is formed in the side of the first rack and can be matched with the inner wall of the side assembly, a second return spring is fixedly installed on 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 is engaged with the first rack, and the half gear is engaged with the first transmission gear.

[0010] Further, the heating device comprises a fixed sleeve fixedly installed on the inner wall of the heat preservation cover, a movable sleeve rod movably sleeved on the inner wall of the heat preservation cover and a sliding plate fixedly installed on the inner wall of the heat preservation cover, the inner wall of the fixed sleeve is fixedly connected with an insulating rod, the outer side of the insulating rod is movably sleeved with an electrified rod, the other end of the movable sleeve rod is movably sleeved with a second gear, the side surface of the second gear is fixedly installed with an extension rod, the other end of the extension rod is movably connected with a contact block through a pin, the contact block is in contact with the electrified rod, when the second gear rotates, the extension rod is driven to rotate, so that the contact block at the top of the extension rod is out of contact with the electrified rod, the side surface of the sliding plate is movably sleeved with a second rack, the bottom of the second rack is located in the first sliding groove, and the second rack is in mesh with the second gear.

[0011] Further, the first lever and the second lever are respectively located on the two sides of the driving rod and are symmetrically distributed, the first lever is movably connected to the inner wall of the heat preservation cover through a bolt at one fifth of the end close to the driving rod, and the second lever is movably connected to the inner wall of the heat preservation cover through a bolt at one fifth of the end close to the driving rod.

[0012] Further, the side assembly comprises a side door fixedly installed on the side surface of the heat preservation cover, the surface of the side door is provided with heat dissipation holes, the inner wall of the side door is fixedly installed with a pressure relief valve, the bottom of the side door is fixedly installed with a fireproof canvas, and the inner bottom of the fireproof canvas is fixedly installed with a plurality of counterweights.

[0013] The technical effects and advantages of the present application are as follows:

[0014] When the temperature in the cover body changes, the gas in the air cavity cylinder in the limiting sleeve expands due to heating, pushes the driving rod below to move, the driving rod moves to drive the first lever and the second lever to rotate, the other end of the first lever drives the heat dissipation leaves to rotate through the transmission of the gear and rack, and the opening and closing size can be controlled through temperature, the other end of the second lever drives the contact block on the electrified rod to move through the transmission of the gear and rack and the extension rod, and when the contact block moves to the end of the electrified rod, the contact block is not in contact with the electrified rod, so that the power-off process is completed and the heating is stopped, which is beneficial to accurately control the temperature in the cover body.

[0015] The lifting mechanism is provided, when working, the cover body is controlled to be lowered to the working position to preserve the slab, when a safety accident occurs or the device fails, the cover body is controlled to be lifted, which is beneficial to avoid that the cover body maintains a high temperature state for a long time and the device is rapidly aged, and the device can be conveniently maintained and repaired.

[0016] The application is provided with an anti-collision device, in the process of transportation, some collisions of the billet can be avoided, the influence of the deformation of the billet caused by the collision on the billet can be reduced, the entrance and exit are provided with fireproof canvas skirt edges, and the bottom is additionally provided with a counterweight block, which is attached to the bottom, can block the entry of external cold air, and is convenient for the billet to enter and exit. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the application;

[0018] Figure 2 It is a schematic diagram of the lifting mechanism structure of the application;

[0019] Figure 3 It is a schematic diagram of the overall structure of the application;

[0020] Figure 4 It is a schematic diagram of the overall structure of the temperature control device of the application;

[0021] Figure 5 It is a schematic diagram of the detection reaction mechanism structure of the application;

[0022] Figure 6 It is a schematic diagram of the opening and closing mechanism structure of the application;

[0023] Figure 7 It is a schematic diagram of the heating device structure of the application;

[0024] Figure 8 It is a schematic diagram of the side assembly structure of the application;

[0025] Figure 9 It is an explosion view of the detection reaction mechanism structure of the application.

[0026] The reference signs are: 1, rack; 2, conveying mechanism; 3, heat preservation device; 31, heat preservation cover; 32, electric heating pipe; 33, hydraulic rod; 34, sealing strip; 35, lifting plate; 36, anti-collision plate; 37, temperature control device; 371, detection reaction mechanism; 3711, first reset spring; 3712, limiting sleeve; 3713, air cavity cylinder; 3714, piston rod; 3715, check 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 reset spring; 3735, second sliding groove; 3736, first rack; 3737, ventilation leaf; 374, first sliding groove; 375, heating device; 3751, sliding plate; 3752, second rack; 3753, second gear; 3754, movable sleeve rod; 3755, telescopic rod; 3756, contact block; 3757, insulating rod; 3758, power supply 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 aperture; 63, pressure relief valve; 64, fireproof canvas; 65, counterweight. DETAILED DESCRIPTION

[0027] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application, and in addition, the forms of each structure described in the following embodiments are only examples, and the heat preservation equipment for continuous casting steel slab manufacturing involved in the present application is not limited to each structure described in the following embodiments, and all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0028] REFERENCE Figures 1 to 2The application provides a heat preservation device for continuous casting billet manufacturing, which comprises a rack 1, a conveying mechanism 2 fixedly arranged in the rack 1, a lifting mechanism 4 and a metal slab 5 arranged on the top of the conveying mechanism 2, wherein the lifting mechanism 4 comprises a lifting plate 43, a lifting rack 44 and a first lifting gear 46, the lifting plate 43 is fixedly arranged on a top wall, a support shell 41 is fixedly arranged on the top of the lifting plate 43, a support column 42 is movably sleeved on the inner wall of the lifting plate 43, a heat preservation device 3 is fixedly connected to the bottom of the support column 42, a first motor 45 is fixedly arranged on the top of the lifting plate 43, a second lifting gear 47 is fixedly connected to the side of the first motor 45, the second lifting gear 47 is engaged with the lifting rack 44, the first lifting gear 46 is engaged with the lifting rack 44, the first lifting gear 46 and the second lifting gear 47 are movably sleeved in the support shell 41 through a transmission rod, and the bottom of the lifting rack 44 is fixedly connected to the top of the heat preservation device 3.

[0029] In the embodiment, the first motor 45 drives the second lifting gear 47 to rotate, the second lifting gear 47 drives the lifting rack 44 to move up and down through engagement with the lifting rack 44, and the first lifting gear 46 rotates along with the lifting rack 44, wherein the first lifting gear 46 only plays a supporting role, the slab is conveyed on the top of the rack 1 through the transmission of the conveying mechanism 2 and is heat preserved in the heat preservation device 3, and when the air pressure in the heat preservation cover 31 exceeds a safe range, the metal slab 5 in the inner wall of the side assembly 6 can relieve the pressure in the heat preservation cover 31.

[0030] Reference Figure 3 The heat preservation device 3 comprises a heat preservation cover 31, a plurality of electric heating pipes 32 are fixedly arranged on the inner wall of the heat preservation cover 31, a hydraulic rod 33 is fixedly arranged 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, one sealing strip 34 is fixedly arranged on each side of the lifting plate 35, a plurality of anti-collision springs 38 are fixedly arranged on the bottom of the inner wall of the heat preservation cover 31, an anti-collision plate 36 is fixedly arranged on the other end of the anti-collision spring 38, a laser detector 39 is fixedly arranged on the inner wall of the heat preservation cover 31, and a temperature control device 37 is arranged on the inner wall of the heat preservation cover 31.

[0031] In the embodiment of the present application, the temperature control device 37 can control the power supply and power cut of the electric heating pipe 32 through the change of temperature, control the opening and closing size of the ventilation leaf 3737 to dissipate heat, maintain the temperature inside the heat preservation cover 31 at an ideal temperature state, and the hydraulic rod 33 can push the lifting plate 35 to move to adjust the space inside the heat preservation cover 31 to better reduce the space for heat preservation of the slab. The anti-collision plate 36 located on the inner wall of the heat preservation cover 31 can avoid collision through the buffering of the anti-collision spring 38.

[0032] Reference Figure 4 The temperature control device 37 includes a support plate 372 fixedly installed on the inner wall of the heat preservation cover 31 and a heating device 375 movably connected to the inner wall of the heat preservation cover 31. The bottom of the support plate 372 is fixedly installed with a detection reaction mechanism 371, one end of the detection reaction mechanism 371 is movably connected with an opening and closing mechanism 373, and the other end of the detection reaction mechanism 371 is movably connected with the heating device 375.

[0033] Reference Figure 5 The detection reaction mechanism 371 includes a limiting sleeve 3712 fixedly installed on 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 preservation cover 31. The limiting sleeve 3712 is in a cylindrical shape, and the inner wall is provided with threads. The inner wall of the limiting sleeve 3712 is movably connected with an air cavity cylinder 3713 through threads. The outer side of the air cavity cylinder 3713 is provided with threads. The inner wall of the air cavity cylinder 3713 movably sleeves a piston rod 3714. The inner wall of the limiting support sleeve 3716 movably sleeves a driving rod 3717. The middle part of the driving rod 3717 fixedly sleeves a check ring 3715. The outer surface of the driving rod 3717 movably sleeves a first return spring 3711. The top of the first return spring 3711 is fixedly connected with the bottom of the check ring 3715. The bottom of the first return spring 3711 is fixedly connected with the top of the limiting support sleeve 3716. The bottom inner wall of the driving rod 3717 movably connects a first lever 3718 and a second lever 3719 through a pin. The side of the second lever 3719 is provided with a first sliding groove 374.

[0034] In the embodiment of the present application, the gas in the air cavity cylinder 3713 expands when heated, pushing the piston rod 3714 on the inner wall to move downward, and then pushing the driving rod 3717 below to move downward. Under the action of the bolt, the first lever 3718 and the second lever 3719 away from the end of the driving rod 3717 will rotate upward. When the temperature drops, the spring compressed between the check ring 3715 and the limiting support sleeve 3716 will push the driving rod 3717 to reset. When different billets require different holding temperatures, the distance between the limiting sleeve 3712 and the air cavity cylinder 3713 can be adjusted by screwing. When a lower temperature is required, the distance between the air cavity cylinder 3713 and the limiting sleeve 3712 is shortened, thereby reducing the stroke and reducing the triggering stroke, thereby reducing the temperature. When a high temperature is required, the distance is increased, thereby increasing the stroke and increasing the triggering stroke, thereby increasing the temperature.

[0035] With reference to Figure 6 The support plate 372 includes a half gear 3731 fixedly installed on 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 with the inner wall of the side assembly 6, and a connecting rod 3732 is fixedly connected to the side of the ventilation blade 3737. The other end of the connecting rod 3732 is fixedly installed with a first transmission gear 3733. A second sliding groove 3735 is formed in the side of the first rack 3736, which can cooperate with the inner wall of the side assembly 6. A second reset spring 3734 is fixedly installed at the bottom of the first rack 3736, and the bottom of the second reset spring 3734 is fixedly installed on the inner wall of the side assembly 6. The first transmission gear 3733 is engaged with the first rack 3736, and the half gear 3731 is engaged with the first transmission gear 3733.

[0036] In the embodiment of the present application, the first lever 3718 drives the half gear 3731 to rotate, and when the first transmission gear 3733 is contacted, the first transmission gear 3733 is driven to rotate. The first transmission gear 3733 drives the ventilation blade 3737 to open and dissipate heat. The first transmission gear 3733 drives the first rack 3736 to move downward, and the second reset spring 3734 is compressed. When the temperature drops, the second reset spring 3734 resets, and the ventilation blade 3737 also resets.

[0037] With reference to Figure 7The heating device 375 comprises a fixed sleeve 3759 fixedly installed on the inner wall of the heat preservation cover 31, a movable sleeve rod 3754 movably sleeved on the inner wall of the heat preservation cover 31, and a sliding plate 3751 fixedly installed on the inner wall of the heat preservation cover 31. The inner wall of the fixed sleeve 3759 is fixedly connected with an insulating rod 3757, the outer side of the insulating rod 3757 is movably sleeved with an electrified rod 3758, the other end of the movable sleeve rod 3754 is movably sleeved with a second gear 3753, the side surface of the second gear 3753 is fixedly installed with an extension rod 3755, the other end of the extension rod 3755 is movably connected with a contact block 3756 through a pin, the contact block 3756 is in contact with the electrified rod 3758, and when the second gear 3753 rotates, the extension rod 3755 is driven to rotate, so that the contact block 3756 at the top of the extension rod 3755 is separated from the electrified rod 3758. The side surface of the sliding plate 3751 is movably sleeved with a second rack 3752, the bottom of the second rack 3752 is located in the first sliding groove 374, and the second rack 3752 is in meshing connection with the second gear 3753.

[0038] In the embodiment of the application, the second lever 3719 performs circumferential motion away from the one end of the driving lever 3717, drives the second rack 3752 to move upward through the first sliding groove 374, drives the second gear 3753 to rotate through meshing with the second rack 3752, drives the contact block 3756 to slide on the electrified rod 3758 through the extension rod 3755, and the electric heating pipe 32 is disconnected when the contact block 3756 is disconnected with the electrified rod 3758.

[0039] Reference Figure 5 The first lever 3718 and the second lever 3719 are respectively located on the two sides of the driving lever 3717 and are symmetrically distributed, the first lever 3718 is movably connected to the inner wall of the heat preservation cover 31 through a bolt at one fifth of the end close to the driving lever 3717, and the second lever 3719 is movably connected to the inner wall of the heat preservation cover 31 through a bolt at one fifth of the end close to the driving lever 3717.

[0040] Reference Figure 8 The side assembly 6 comprises a side door 61 fixedly installed on the side surface of the heat preservation cover 31, the surface of the side door 61 is provided with heat dissipation apertures 62, the inner wall of the side door 61 is fixedly installed with a pressure relief valve 63, the bottom of the side door 61 is fixedly installed with a fireproof canvas 64, and the inner bottom of the fireproof canvas 64 is fixedly installed with a plurality of counterweight blocks 65.

[0041] The working principle of the present application is as follows: when working, the first motor 45 at the top is started to drive the second lifting gear 47 to rotate, the second lifting gear 47 drives the lifting rack 44 to move downward through meshing, the lifting rack 44 drives the heat preservation device 3 to move downward, and the movement stops when the bottom of the heat preservation cover 31 contacts the top of the rack 1; the metal slab 5 is placed on the top of the rack 1 to be transported into the heat preservation cover 31, the inside of the heat preservation cover 31 is adjusted to a space suitable for the size of the slab through the lifting plate 35 pushed by the hydraulic rod 33, the inside of the heat preservation device 3 is at room temperature at this time, the device is powered on, the electric heating pipe 32 on the inner wall of the heat preservation cover 31 will heat the device, so that the temperature inside the heat preservation cover 31 reaches the ideal state, the temperature inside the device continuously rises, the gas in the air cavity cylinder 3713 on the inner wall of the limiting sleeve 3712 will expand and push the piston rod 3714 on the inner wall thereof to move downward, push the driving rod 3717 below, due to the action of the bolt, the ends of the first lever 3718 and the second lever 3719 away from the driving rod 3717 will move upward, the first lever 3718 drives the half gear 3731 to make circular motion, at the beginning of the movement, the half gear 3731 does not contact the first transmission gear 3733, the second lever 3719 pushes the second rack 3752 to move upward, the second rack 3752 drives the second gear 3753 to rotate through meshing with the second gear 3753, the second gear 3753 drives the contact block 3756 to slide downward through the extension rod 3755, the initial state is that the contact block 3756 contacts the power supply rod 3758 to make the electric heating pipe 32 powered on to heat the device, when the contact block 3756 just separates from the power supply rod 3758, the device will not be powered on, and the electric heating pipe 32 stops heating, at this time, the temperature interval is the most suitable heat preservation temperature for steel slab manufacturing, the half gear 3731 also just contacts the first transmission gear 3733, when the temperature continues to rise, the half gear 3731 drives the first transmission gear 3733 to rotate through meshing with the first transmission gear 3733, the first transmission gear 3733 drives the ventilation leaf 3737 to rotate through the connecting rod 3732, controls the opening and closing angle of the ventilation leaf 3737 to cool down, the higher the temperature, the larger the opening and closing angle of the ventilation leaf 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 compressed tightly, when the temperature drops to the ideal temperature range, the second return spring 3734 resets the ventilation leaf 3737 to stop heat dissipation, when the temperature is within the ideal range, the contact block 3756 is located below the power supply rod 3758, and the power supply rod 3758 will not be powered on to heat, so that the temperature can be automatically maintained at the most suitable temperature for steel slab heat preservation;

[0042] When the billets with different insulation requirements are insulated, the distance between the limiting sleeve 3712 and the air cavity cylinder 3713 can be adjusted by screw rotation. When a lower temperature is required, the distance between the air cavity cylinder 3713 and the limiting sleeve 3712 is shortened, thereby causing the stroke to decrease, so that the triggering stroke decreases, thereby reducing the temperature. When a high temperature is required, the distance is increased, thereby causing the stroke to increase, so that the triggering stroke increases, thereby increasing the temperature

[0043] After the device completes the work, the lower device is powered off, and the upper first motor 45 drives the insulation device 3 to move upward to the initial position.

[0044] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

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 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. 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 of the hanging plate (43). A second lifting gear (47) is fixedly connected to the side of the motor (45). The second lifting gear (47) meshes with the 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 the 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). The heat preservation device (3) includes a heat preservation cover (31). A temperature control device (37) is installed on the inner wall of the heat preservation cover (31). 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). 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).

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 1, characterized in that: The opening and closing mechanism (373) 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).

4. 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).

5. 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).

6. 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 at the bottom inside the fireproof canvas (64).

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