82B smelting furnace capable of improving liquid level fluctuation of continuous casting crystallizer

Abstract

The application belongs to the technical field of steel smelting equipment, in particular to a 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting crystallizer, which comprises a bottom plate and a furnace lining; a lifting mechanism is arranged at one end of the top of the bottom plate, a furnace body is arranged inside the furnace lining; a pulling mechanism is arranged at the other end of the top of the bottom plate and rotates through the output shaft of a motor, synchronously controls the pulling mechanism and the lifting mechanism, and tilts when the height of the furnace body is lowered, so as to further reduce the distance between the discharge port of the furnace body and the receiving grinding tool, replace refined ferrosilicon with silicon carbide to be added into the furnace body through the discharge port during tapping, solve the problem of insufficient height adjustment of the furnace body, pour out the molten steel from a high place, have a large potential energy, easily produce liquid level fluctuation during continuous casting pouring, and due to high magnesia basicity of the furnace lining and poor flowability of the molten steel, the molten steel cannot be effectively decontaminated during refining, so as to frequently cause liquid level fluctuation, cause a large amount of billet cutting waste, and affect the production cost.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of steel smelting equipment, in particular to a 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting crystallizer. BACKGROUND

[0002] High-carbon steel is commonly known as tool steel, and the carbon content is from 0.60% to 1.70%, wherein 82B belongs to high-carbon steel, and 82 represents that the carbon content is 0.82%, and it is used for producing prestressed steel wire and steel strand.

[0003] At present, the smelting of 82B series high-carbon steel is mostly carried out in a traditional steel smelting furnace. After the raw materials are put into the steel smelting furnace, the furnace body is directly heated. After the raw materials are melted into molten steel, the furnace body bottom is lifted by a hook, so that the molten steel is discharged into a continuous casting crystallizer, and the product is obtained after cooling and shaping.

[0004] The existing high-carbon steel smelting furnace has insufficient furnace body height adjustment, the molten steel is poured out from a high place and has a large potential energy, liquid level fluctuation is prone to occur during continuous casting pouring, and because the magnesia lining has high alkalinity, the molten steel has poor fluidity, and the smelted molten steel cannot be effectively decontaminated during refining, resulting in frequent liquid level fluctuation and a large amount of billet cutting waste, thereby affecting the production cost.

[0005] Therefore, the application provides a 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting crystallizer. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the application to solve the technical problem is that the application provides a 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting crystallizer, which comprises a bottom plate and a lining.

[0008] A lifting mechanism is arranged at one end of the top of the bottom plate, the lifting mechanism comprises two screw rods, a nut block is threadedly connected to each screw rod, the two ends of the lining are rotatably arranged between the two nut blocks through a support, the two screw rods are drivingly connected through a second rotating shaft, the two screw rods are synchronously rotated by rotating the second rotating shaft, and the lining moves up and down.

[0009] A furnace body is arranged inside the lining.

[0010] A pulling mechanism is arranged at the other end of the top of the bottom plate, the pulling mechanism comprises a first rotating shaft, two winding drums are fixed to the first rotating shaft, each winding drum is connected to the lining through a steel cable, and the two winding drums synchronously wind the steel cable by driving the first rotating shaft to rotate, so as to pull the lining to rotate.

[0011] The first rotating shaft is fixedly connected with a first gear at one end, the second rotating shaft is fixedly connected with a second gear at one end, a motor is fixedly connected to the top surface of the bottom plate below the first rotating shaft, the output shaft of the motor is fixedly connected with the first gear and the second gear, the two first gears are connected through chain transmission, and the two second gears are connected through chain transmission.

[0012] Further, the lifting mechanism further comprises support boxes fixedly connected to the top surface of the bottom plate, screw rods are rotatably arranged in the support boxes, the second rotating shaft extends into the support boxes and is fixedly connected with a first bevel gear at the end, the bottom of the screw rod is fixedly connected with a second bevel gear, and the first bevel gear is in meshing connection with the second bevel gear. When the height position of the furnace lining needs to be adjusted, the output shaft of the motor is rotated, the second rotating shaft is driven to rotate through the transmission of the second gear and the chain, the second bevel gear is driven to rotate by the first bevel gear, the two screw rods are synchronously rotated, the two nut blocks are synchronously moved along the screw rods, and the height position adjustment of the furnace lining is realized.

[0013] Further, a sliding groove is formed in the adjacent side wall between the two support boxes, one end of each support is slidably penetrated through the sliding groove, the support is fixedly connected with the nut block, and the furnace lining is rotatably arranged between the two supports. When the two nut blocks move along the screw rods, the support can move in the sliding groove, and the cooperation of the support and the sliding groove makes the movement of the furnace lining more stable.

[0014] Further, the pulling mechanism further comprises support columns fixedly connected to the top surface of the bottom plate, the first rotating shaft is rotatably arranged between the two support columns, one end of the steel cable is fixedly connected to the outer wall of the winding drum, and the other end of the steel cable is rotatably connected with the furnace lining. When the furnace lining needs to be pulled to rotate and tilt, the output shaft of the driving motor is rotated, the first rotating shaft is rotated through the transmission of the chain and the first gear, the steel cable is wound on the winding drum, the furnace lining is pulled to rotate and tilt, the molten steel is conveniently discharged, and power is provided for the rotation of the furnace lining.

[0015] Further, the furnace lining comprises a shell, a refractory brick layer is arranged at the inner bottom of the shell, a heater is arranged at the top center position of the refractory brick layer, the heater is wrapped with a heat preservation layer, a fiber layer is arranged at the top of the heat preservation layer, and the furnace body is arranged in the heater. During smelting, the heater is used to heat the furnace body, so that the temperature in the furnace body is increased to melt the steel material, the heat preservation layer can avoid temperature loss and reduce energy consumption, the fiber layer and the refractory brick layer can insulate temperature and avoid high temperature of the shell, and the service life is affected.

[0016] Further, the outer wall of the shell is provided with an inflation mechanism, the inflation mechanism comprises a gas tank fixed to the outer wall of the shell, a gas pump is arranged in the gas tank, one end of the gas pump is connected to one end of a gas pipe, the other end of the gas pipe extends into the furnace body, a temperature sensor is arranged on one side of the gas pipe, when the steel is smelted, the temperature inside the furnace body is detected by the temperature sensor, when it is necessary to ventilate the furnace, the gas pump is controlled to work, and the furnace body is ventilated through the gas pipe, so that the amount of slag discharged during the tapping process of the electric furnace is increased, the tapping temperature is increased, the terminal carbon is controlled, and the decarburization amount during the smelting process of the electric furnace is increased.

[0017] Further, the bottom of the shell is fixed with a fixing block at two ends, respectively, a through hole is formed in the middle of each fixing block, a steel ring is rotatably connected to the inside of the through hole, the steel ring is rotatably connected to a steel cable, and the top of the shell is provided with a groove.

[0018] Further, the two sides of the shell are fixed with a fixed frame, a connecting shaft is fixed to the middle position of each fixed frame, and the connecting shaft is rotatably arranged on a support.

[0019] Further, the top of the furnace body is provided with a discharge port, a top cover is detachably connected to the top of the discharge port, a feeding port is formed in the top cover, a discharging cover is arranged on the feeding port, and sealing cover mechanisms are arranged on the two sides of the discharging cover.

[0020] Further, the sealing cover mechanism comprises a rotating rod rotatably arranged on the top of the top cover, a rotating plate is fixed to the rotating rod, a supporting rod is fixed to the top of the rotating plate, and the bottom surface of the rotating plate is an arc-shaped inclined surface.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. The 82B smelting furnace capable of improving the liquid level fluctuation of the continuous casting crystallizer, through the rotation of the output shaft of the motor, under the transmission of the two first gears and the two second gears, the first rotating shaft and the second rotating shaft are synchronously controlled to rotate, when the furnace body is descending, the two reels are synchronously wound by driving the first rotating shaft to rotate, the furnace lining is pulled to rotate, the furnace body is tilted to rotate, the distance between the discharge port of the furnace body and the receiving mill can be further reduced, the splashing caused by the excessive potential energy of the molten steel is avoided, the liquid level fluctuation in the continuous casting pouring process is reduced, a large amount of billet cutting is avoided, and the production cost is reduced.

[0023] 2. The 82B smelting furnace capable of improving the liquid level fluctuation of the continuous casting crystallizer, through the rotation of the cover mechanism, the discharge cover is opened, the silicon carbide is added into the furnace body through the discharge port instead of refined silicon iron, the discharge port is small and is blocked by the discharge cover, the material adding is convenient and safe, the inclusion amount of aluminum oxide in the steel can be controlled, the discharge port of the soft stirring at the end of the refining is reduced, the problem that the molten steel in the smelting cannot be effectively removed in the refining is solved, and the problem of frequent liquid level fluctuation in the continuous casting pouring process is solved.

[0024] 3. The 82B smelting furnace capable of improving the liquid level fluctuation of the continuous casting crystallizer, when smelting, the furnace body is heated by the heater, the internal temperature of the furnace body is increased to melt the steel material, the heat preservation layer can avoid temperature loss and reduce energy consumption, the fiber layer and the refractory brick layer can insulate temperature and avoid that the shell temperature is too high to affect the service life. BRIEF DESCRIPTION OF DRAWINGS

[0025] The application will be further described below with reference to the drawings.

[0026] Figure 1 is the overall structure schematic diagram of the application;

[0027] Figure 2 is the connection schematic diagram of the lifting mechanism and the shell of the application;

[0028] Figure 3 is the connection schematic diagram of the lifting mechanism and the pulling mechanism of the application;

[0029] Figure 4 is the sectional view of the support box of the application;

[0030] Figure 5 is Figure 4 is the local enlarged view of B in the application;

[0031] Figure 6 is the connection schematic diagram of the furnace lining and the top cover of the application;

[0032] Figure 7 is the explosion view of Figure 6 ; and

[0033] Figure 8 is Figure 1 is

[0034] Figure: 1, the base plate; 2, lifting mechanism; 21, support box; 22, screw rod; 23, the second rotating shaft; 24, the second gear; 25, nut block; 26, support; 27, second bevel gear; 28, first bevel gear; 29, sliding groove; 3, furnace lining; 31, fixed frame; 32, shell; 33, fiber layer; 34, groove; 35, heater; 36, insulation layer; 37, refractory transition layer; 38, connecting shaft; 4, pulling mechanism; 41, support column; 42, motor; 43, steel cable; 44, fixed block; 45, drum; 46, the first rotating shaft; 47, the first gear; 5, sealing mechanism; 51, rotating rod; 52, rotating plate; 53, support rod; 6, furnace body; 61, discharge port; 62, top cover; 63, discharge cover; 7, inflation mechanism; 71, air pipe; 72, temperature sensor. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0036] Embodiment one

[0037] The 82B smelting furnace capable of improving liquid level fluctuation of continuous casting crystallizer provided by the embodiment of the present application is used to solve the problems of the original unimproved new furnace producing 82B series, poor fluidity of molten steel due to high basicity of magnesia in the furnace lining, and the fact that the molten steel cannot be effectively decontaminated in the refining process, which leads to frequent liquid level fluctuation in the continuous casting pouring process and causes a large amount of billet cutting waste and affects the production cost. In the process of tapping from the electric furnace, the amount of slag is increased, the tapping temperature is increased, the end point carbon is controlled, the decarburization amount in the electric furnace smelting process is increased, silicon carbide is used instead of refined ferrosilicon in the tapping process, the amount of aluminum oxide inclusions in the steel is controlled, and the soft stirring time at the end of the refining process is increased. The new furnace produces 82B, the electric furnace tapping temperature is controlled at about 1625 DEG C, the refining slag is added from the electric furnace before tapping, the amount of slag is reduced, silicon carbide is used in the electric furnace tapping process, the amount of refined ferrosilicon is reduced, and the refining process is ensured to enter the heating, decontamination and deoxidization stage.

[0038] Specifically, as Figures 1 to 6As shown, the 82B smelting furnace capable of improving liquid level fluctuation of continuous casting crystallizer provided by the embodiment of the present application comprises a bottom plate 1, a furnace lining 3, a lifting mechanism 2 and a furnace body 6, the furnace body 6 is arranged inside the furnace lining 3, the lifting mechanism 2 is arranged at one end of the top of the bottom plate 1, the lifting mechanism 2 comprises two screw rods 22, a nut block 25 is threadedly connected to each screw rod 22, the both ends of the furnace lining 3 are rotatably arranged between the two nut blocks 25 through a support 26, the two screw rods 22 are drivingly connected through a second rotating shaft 23, during the tapping process, the second rotating shaft 23 is rotated to drive the two screw rods 22 to synchronously rotate, under the action of the two nut blocks 25, the support 26 drives the furnace lining 3 to move downward, the pouring height of the molten steel is reduced, and the molten steel is prevented from splashing;

[0039] Further comprising a pulling mechanism 4, the pulling mechanism 4 is arranged at the other end of the top of the bottom plate 1, the pulling mechanism 4 comprises a first rotating shaft 46, two winding drums 45 are fixedly connected to the first rotating shaft 46, and each winding drum 45 is connected with the furnace lining 3 through a steel cable 43; wherein, a first gear 47 is fixedly connected to one end of the first rotating shaft 46, a second gear 24 is fixedly connected to one end of the second rotating shaft 23, a motor 42 is fixedly connected to the top surface of the bottom plate 1 below the first rotating shaft 46, the output shaft of the motor 42 is fixedly connected with the first gear 47 and the second gear 24, the two first gears 47 are drivingly connected through a chain, the two second gears 24 are drivingly connected through a chain, the output shaft of the motor 42 is rotated, the first rotating shaft 46 and the second rotating shaft 23 are synchronously controlled to rotate under the driving action of the two first gears 47 and the two second gears 24, the furnace body 6 is lowered in height, at the same time, the first rotating shaft 46 is driven to rotate, the two winding drums 45 synchronously wind the steel cable 43, the furnace lining 3 is pulled to rotate, the furnace body 6 is tilted to rotate, the distance between the discharge port of the furnace body 6 and the receiving grinding tool can be further reduced, the silicon carbide is conveniently put into the furnace during the tapping process, the inclusion amount of aluminum oxide in the steel is controlled, and the soft stirring time at the end of the refining is reduced.

[0040] As shown in the figure, Figures 2 to 4 The lifting mechanism 2 further comprises a support box 21 fixedly connected to the top surface of the bottom plate 1, the screw rod 22 is rotatably arranged inside the support box 21, one end of the second rotating shaft 23 extends into the support box 21 and is fixedly connected with a first bevel gear 28 at the end, the bottom of the screw rod 22 is fixedly connected with a second bevel gear 27, the first bevel gear 28 is meshingly connected with the second bevel gear 27; when it is needed to adjust the height position of the furnace lining 3, the output shaft of the motor 42 is rotated, the second rotating shaft 23 is driven to rotate through the driving of the second gear 24 and the chain, the second bevel gear 27 is driven to rotate by the first bevel gear 28, the two screw rods 22 are synchronously rotated, the two nut blocks 25 are synchronously moved along the screw rods 22, and the height position adjustment work of the furnace lining 3 is realized, when it is needed to discharge materials, the height of the furnace lining 3 is lowered, and the molten steel is prevented from splashing when pouring.

[0041] As shown in Figure 3 , the adjacent side walls between the two support boxes 21 are each provided with a sliding groove 29, one end of each support 26 is slidably penetrated through the sliding groove 29, and the support 26 is fixedly connected with the nut block 25, the furnace lining 3 is rotatably arranged between the two supports 26, when the two nut blocks 25 move along the screw rod 22, the support 26 can move inside the sliding groove 29, through the cooperation of the support 26 and the sliding groove 29, the movement of the furnace lining 3 is more stable.

[0042] As shown in Figures 1 to 3 , the pulling mechanism 4 further comprises support columns 41 symmetrically fixed on the top surface of the bottom plate 1, the first rotating shaft 46 is rotatably arranged between the two support columns 41, one end of the steel cable 43 is fixedly connected with the outer wall of the winding drum 45, the other end of the steel cable 43 is rotatably connected with the furnace lining 3, when it is needed to pull the furnace lining 3 to rotate and tilt, the output shaft of the driving motor 42 is rotated, through the transmission of the chain and the first gear 47, the first rotating shaft 46 is rotated, then the steel cable 43 is wound on the winding drum 45, the furnace lining 3 is pulled to rotate and tilt, which is convenient for discharging molten steel, and power is provided for the rotation of the furnace lining 3.

[0043] As shown in Figure 1 , Figure 2 , Figure 6 , Figure 7 , the furnace lining 3 comprises a shell 32, the inner bottom of the shell 32 is provided with a refractory brick layer 37, the top center position of the refractory brick layer 37 is provided with a heater 35, the outside of the heater 35 is wrapped with a heat preservation layer 36, the top of the heat preservation layer 36 is provided with a fiber layer 33, and the furnace body 6 is arranged inside the heater 35. During smelting, the heater 35 heats the furnace body 6, so that the temperature inside the furnace body 6 rises to melt the steel material. The heat preservation layer 36 can avoid temperature loss and reduce energy consumption. The fiber layer 33 and the refractory brick layer 37 can insulate temperature and avoid the temperature of the shell 32 being too high to affect the service life.

[0044] As shown in Figure 1 , the outer wall of the shell 32 is provided with an air charging mechanism 7, the air charging mechanism 7 comprises an air tank fixedly connected with the outer wall of the shell 32, an air pump is arranged in the air tank, one end of an air pipe 71 connected with the output end of the air pump, the other end of the air pipe 71 extends into the inside of the furnace body 6, and a temperature sensor 72 is arranged on one side of the air pipe 71. During smelting of the steel material, the temperature inside the furnace body 6 is detected by the temperature sensor 72, when it is needed to ventilate the furnace, the air pump is controlled to work, and the inside of the furnace body 6 is ventilated through the air pipe 71. In the process of discharging molten steel from the electric furnace, the amount of slag discharged is increased, the discharging temperature is improved, the terminal carbon is controlled, and the decarburization amount in the smelting process of the electric furnace is increased.

[0045] As shown in Figure 1As shown, the bottom of the shell 32 is fixed with a fixed block 44 at both ends, and a through hole is formed in the middle of each fixed block 44. A steel ring is rotatably connected inside the through hole, and the steel ring is rotatably connected with the steel cable 43. The top of the shell 32 has a groove 34. When the steel cable 43 is pulled, the steel ring can rotate along the fixed block 44, which is convenient for lifting one end of the shell 32. The fixed block 44 is directly connected with the steel cable 43, which can avoid damage to the steel cable 43 due to friction.

[0046] As shown in Figure 1 , Figure 2 , the two sides of the shell 32 are fixed with a fixed frame 31. The middle of each fixed frame 31 is fixed with a connecting shaft 38, and the connecting shaft 38 is rotatably arranged on the support 26. The fixed frame 31 is a rectangular frame structure. By installing the connecting shaft 38 on the fixed frame 31 to the support 26, the connecting shaft 38 cooperates with the fixed frame 31 to support the furnace lining 3, which is convenient for the rotation of the furnace lining 3.

[0047] Example two

[0048] As shown in Figure 1 , Figures 7 to 8 , another embodiment of the present application is compared with example one.

[0049] As shown in Figure 1 , Figure 7 , the top of the furnace body 6 is provided with a discharge port 61, and the top of the discharge port 61 is detachably connected with a top cover 62. The top cover 62 is provided with a feeding port, and the feeding port is provided with a discharging cover 63. The two sides of the discharging cover 63 are respectively provided with a sealing cover mechanism 5, and the sealing cover mechanism 5 is arranged on the top of the top cover 62. In the process of tapping, the discharging cover 63 is opened by rotating the sealing cover mechanism 5, and the silicon carbide is added into the furnace body 6 instead of refined silicon iron through the discharging port. The discharging port is small and is blocked by the discharging cover 63, so that the feeding is convenient and safe, and the amount of aluminum oxide inclusions in the steel can be controlled, and the soft stirring time of the refining process is reduced.

[0050] As shown in Figure 8 , the sealing cover mechanism 5 comprises a rotating rod 51 rotatably arranged on the top of the top cover 62. The rotating rod 51 is fixed with a rotating plate 52. The top of the rotating plate 52 is fixed with a supporting rod 53. The bottom surface of the rotating plate 52 is an arc-shaped inclined surface. After the discharging cover 63 covers the discharging port, the supporting rod 53 is rotated, so that the bottom surface of the rotating plate 52 on the rotating rod 51 presses the discharging cover 63 tightly, realizing the fixation of the discharging cover 63, and avoiding the discharging cover 63 from falling off in the process of tapping.

[0051] The working principle is that the output shaft of the motor 42 rotates, and under the driving action of the two first gears 47 and the two second gears 24, the first rotating shaft 46 and the second rotating shaft 23 are synchronously controlled to rotate, and then the first bevel gear 28 drives the second bevel gear 27 to rotate, so that the two screw rods 22 are synchronously rotated, and then the two nut blocks 25 are synchronously moved along the screw rods 22, so that the height position adjustment work of the furnace lining 3 is realized, and when it is needed to discharge materials, the height of the furnace lining 3 is lowered to avoid the splashing of molten steel;

[0052] When the height of the furnace body 6 is lowered, the first rotating shaft 46 is driven to rotate, so that the two winding drums 45 synchronously wind the steel ropes 43, the furnace lining 3 is pulled to rotate, the furnace body 6 is tilted to rotate, the distance between the discharge port of the furnace body 6 and the receiving mill can be further reduced, the silicon carbide is put into the steel tapping process, the inclusion amount of aluminum oxide in the steel is controlled, and the soft stirring time at the end of refining is reduced;

[0053] When the steel is smelted, the temperature inside the furnace body 6 is detected by the temperature sensor 72, the gas pump is controlled to work when it is needed to ventilate the furnace, and the furnace body 6 is ventilated through the gas pipe 71, so that the amount of slag discharged during the electric furnace steel tapping process is increased, the steel tapping temperature is increased, the end-point carbon is controlled, and the decarburization amount in the electric furnace smelting process is increased;

[0054] During the steel tapping process, the cover mechanism 5 is rotated to open the discharging cover 63, the silicon carbide is added into the furnace body 6 through the discharging port instead of the refined ferrosilicon, the discharging port is small and is blocked by the discharging cover 63, the material adding is convenient and safe, the inclusion amount of aluminum oxide in the steel is controlled, and the soft stirring time at the end of refining is reduced, after the discharging, the discharging cover 63 covers the discharging port, the supporting rod 53 is rotated, the bottom surface of the rotating plate 52 on the rotating rod 51 is pressed against the discharging cover 63, the fixing of the discharging cover 63 is realized, and the discharging cover 63 is prevented from falling off during the steel tapping process.

[0055] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A 82B smelting furnace capable of improving the liquid level fluctuation of a continuous casting mold, characterized in that: Comprising a bottom plate (1) and a furnace lining (3); a lifting mechanism (2) provided at one end of the top of the bottom plate (1), the lifting mechanism (2) comprising two screw rods (22), each screw rod (22) being threadedly connected with a nut block (25), both ends of the furnace lining (3) being rotatably provided between the two nut blocks (25) through supports (26), the two screw rods (22) being drivingly connected through a second rotating shaft (23), the two screw rods (22) being synchronously rotated by rotating the second rotating shaft (23), so that the furnace lining (3) moves up and down; a furnace body (6) provided inside the furnace lining (3); a pulling mechanism (4) provided at the other end of the top of the bottom plate (1), the pulling mechanism (4) comprising a first rotating shaft (46), the first rotating shaft (46) being fixed with two winding drums (45), each winding drum (45) being connected with the furnace lining (3) through a steel cable (43), the two winding drums (45) being synchronously wound with the steel cable (43) by driving the first rotating shaft (46) to rotate, so as to pull the furnace lining (3) to rotate; wherein one end of the first rotating shaft (46) is fixedly connected with a first gear (47), one end of the second rotating shaft (23) is fixedly connected with a second gear (24), a motor (42) is fixedly connected on the top surface of the bottom plate (1) below the first rotating shaft (46), the output shaft of the motor (42) is fixedly connected with the first gear (47) and the second gear (24), the two first gears (47) are drivingly connected through a chain, and the two second gears (24) are drivingly connected through a chain; the lifting mechanism (2) further comprising support boxes (21) fixedly connected on the top surface of the bottom plate (1), the screw rods (22) being rotatably provided inside the support boxes (21), one end of the second rotating shaft (23) extending into the support boxes (21) and being fixedly connected with a first bevel gear (28) at the end portion, the bottom of the screw rod (22) being fixedly connected with a second bevel gear (27), the first bevel gear (28) being meshingly connected with the second bevel gear (27); a sliding groove (29) being formed on the adjacent side wall between the two support boxes (21), one end of each support (26) being slidingly penetrated through the sliding groove (29), and the support (26) being fixedly connected with the nut block (25), the furnace lining (3) being rotatably provided between the two supports (26); the pulling mechanism (4) further comprising support columns (41) fixedly connected on the top surface of the bottom plate (1), the first rotating shaft (46) being rotatably provided between the two support columns (41), one end of the steel cable (43) being fixedly connected with the winding drum (45), and the other end of the steel cable (43) being rotatably connected with the furnace lining (3).

2. The 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting mold according to claim 1, characterized in that: the furnace lining (3) comprising a shell (32), the inner bottom of the shell (32) being provided with a refractory brick layer (37), the top center position of the refractory brick layer (37) being provided with a heater (35), the outside of the heater (35) being wrapped with a heat preservation layer (36), the top of the heat preservation layer (36) being provided with a fiber layer (33), and the furnace body (6) being provided inside the heater (35).

3. The 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting mold according to claim 2, characterized in that: The outer wall of the shell (32) is provided with an inflation mechanism (7), the inflation mechanism (7) comprises a gas tank fixed on the outer wall of the shell (32), a gas pump is arranged in the gas tank, one end of the gas pump is connected with one end of a gas pipe (71), the other end of the gas pipe (71) extends into the furnace body (6), and a temperature sensor (72) is arranged on one side of the gas pipe (71).

4. The 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting mold according to claim 2, characterized in that: The bottom of the shell (32) is fixed with a fixed block (44) at each end, a through hole is formed in the middle of each fixed block (44), a steel ring is rotatably connected to the inside of the through hole, the steel ring is rotatably connected with a steel cable (43), and the top of the shell (32) is provided with a groove (34).

5. The 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting mold according to claim 2, characterized in that: The two sides of the shell (32) are fixed with a fixed frame (31), a connecting shaft (38) is fixed to the middle of each fixed frame (31), the connecting shaft (38) is rotatably arranged on a support (26), and the fixed frame (31) is a rectangular frame structure.

6. The 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting mold according to claim 1, wherein: The top of the furnace body (6) is provided with a discharge port (61), the top of the discharge port (61) is detachably connected with a top cover (62), the top cover (62) is provided with a feeding port, the feeding port is provided with a discharging cover (63), the two sides of the discharging cover (63) are provided with a sealing cover mechanism (5), and the sealing cover mechanism (5) is arranged on the top of the top cover (62).

7. The 82B smelting furnace capable of improving liquid level fluctuation of a continuous casting mold according to claim 6, characterized in that: The sealing cover mechanism (5) comprises a rotating rod (51) rotatably arranged on the top of the top cover (62), the rotating rod (51) is fixed with a rotating plate (52), the top of the rotating plate (52) is fixed with a support rod (53), and the bottom surface of the rotating plate (52) is an arc-shaped inclined surface.

Images