Integrated ferroalloy smelting system

Abstract

The present invention discloses a ferroalloy smelting system, comprising a furnace body, a rotating base and a discharging mechanism, wherein the rotating base comprises a base, a turntable and a plurality of driving sources, and the discharging mechanism comprises a pulling and shifting seat, an iron ladle, an inner track, an outer track, a traction rope, an inner guide wheel group, an outer guide wheel group, a first traction machine, a second traction machine, a first redirecting pile and a second redirecting pile, wherein the pulling and shifting seat comprises a base and a plurality of side columns, and the base is a split structure. In this scheme, a special track is arranged for the furnace body, so that the iron ladle can be moved along the track, and the position of the iron ladle is controlled by controlling the traction machine so that the iron ladle faces the tapping hole to realize tapping, and this scheme replaces the scheme of using a hoisting device to lift and shift the iron ladle, and the operation is more convenient, quick and accurate.

Description

Technical Field

[0001] The invention relates to the technical field of alloy production equipment, and in particular to an integrated ferroalloy smelting system. Background Art

[0002] Ferrosilicon alloy has become an important raw material in steel smelting. Its production mainly adopts smelting furnace or ore-heat furnace. The production of ore-heat furnace is a continuous process from feeding, smelting and tapping. Every link in the process is very important. In modern production, how to reduce the labor of operators and simplify the operation procedures is an issue that is increasingly valued. In the original design, when tapping iron, a crane is still used to transport the molten iron ladle close to the furnace body. This operation is not only inefficient and occupies a large space, but also requires personnel to operate close to the furnace, and personnel safety issues have to be considered. Summary of the invention

[0003] It is necessary to propose an integrated ferroalloy smelting system.

[0004] An integrated ferroalloy smelting system comprises a furnace body, a rotating base and a discharging mechanism. The top of the furnace body is open, and a plurality of iron outlets are provided on the side wall of the furnace body. Mud bags are sealed in the iron outlets. The rotating base is arranged at the bottom of the furnace body. The rotating base comprises a base, a turntable and a plurality of driving sources. The base is fixed on a foundation. A plurality of rollers are arranged on the upper surface of the base. The rollers are in rolling cooperation with the base. The upper end surface of the rollers is higher than the upper surface of the base. The turntable is a circular disk body. The turntable is arranged above the base, and the bottom of the turntable is in rolling cooperation with the rollers. A plurality of tooth holes are provided on the circumferential outer wall of the turntable. The plurality of tooth holes are evenly distributed on the outer wall of the turntable at equal intervals. The driving source includes a driving motor and a driving gear. The driving motor is fixedly arranged. The driving gear is connected to the driving motor in a transmission manner. The driving gear is meshed with the tooth holes of the turntable to drive the turntable and the furnace body to rotate. At least one loading port is provided on the side wall of the furnace body to feed ore materials into the furnace body. The discharging mechanism includes a pulling seat, a ladle, an inner track, an outer track, a traction rope, an inner guide wheel group, an outer guide wheel group, a first traction machine, a second traction machine, a first redirecting pile, and a second redirecting pile. The inner track and the outer track are arranged around the furnace body. The pulling seat includes a base and a plurality of side columns. The base is a split structure, including a front base , rear base, the front base and the rear base are hinged, ground wheels are arranged under the front base and the rear base, the ground wheels are universal wheels, and the universal wheels cooperate with the inner track and the outer track. A transition chassis is also arranged under the side column, and the front half of the transition chassis is fixedly arranged on the front base, and the rear half of the transition chassis is placed on the rear base and movably connected with the rear base. A space for placing a molten iron ladle is formed between the side column and the transition chassis to realize convenient installation of the molten iron ladle and the pulling and shifting seat. The inner guide wheel group includes a plurality of guide wheels, and the arrangement direction of the plurality of guide wheels is the same as the direction of the inner track. The inner guide wheel group is arranged between the inner track and the outer track. The wheel group also includes multiple guide wheels, and the arrangement direction of the multiple guide wheels is the same as the direction of the outer track. The outer guide wheel group is arranged on the outside of the outer track, and the first redirecting pile and the second redirecting pile are arranged at the two ends of the inner track and the outer track. The first traction machine is arranged close to the first redirecting pile, and the second traction machine is arranged close to the second redirecting pile. The traction rope is a closed-loop rope, and the two ends of the traction rope are respectively sleeved on the first traction machine, the first redirecting pile and the second traction machine, the second redirecting pile. The inner traction rope extends along the inner guide wheel group, and the outer traction rope extends along the outer guide wheel group. The pull-shift seat is connected to the traction rope so that the pull-shift seat is pulled along the track by the traction rope.

[0005] Preferably, pin holes are respectively provided at the front end of the front base and the rear end of the rear base of the pull-shift seat, and the pin holes are located on the center line of the pull-shift seat so that the pin holes are at the same distance from the inner track and the outer track, and the pin holes are used to connect with the traction rope.

[0006] Preferably, an air sealing assembly is also provided above the furnace body, and the air sealing assembly is provided at the feeding port. The air sealing assembly includes a support frame, an air sealing cylinder, and a sealing plate. A slot is also provided on the side wall around the feeding port of the furnace body. The support frame is fixedly mounted above the feeding port, and the cylinder seat of the air sealing cylinder is fixed on the support frame. The piston end is connected to the sealing plate, and the sealing plate is inserted into the slot.

[0007] Preferably, an outer rolling ring is also arranged on the outer circumference of the turntable. The outer rolling ring is an annular part fixed above the base. The inner ring diameter of the outer rolling ring is larger than the outer ring diameter of the turntable. A plurality of outer limit rollers are arranged on the inner wall of the outer rolling ring. The outer limit rollers are axially connected to the outer rolling ring so that the outer limit rollers can roll vertically relative to the outer rolling ring, and the rolling surface of the outer limit rollers contacts the outer wall of the turntable.

[0008] Preferably, an inner rolling ring is also arranged on the inner circumference of the turntable. The inner rolling ring is an annular part fixed above the base. The outer ring diameter of the inner rolling ring is smaller than the inner ring diameter of the turntable. A plurality of inner limit rollers are arranged on the outer wall of the inner rolling ring. The inner limit rollers are axially connected to the inner rolling ring so that the inner limit rollers can roll vertically relative to the inner rolling ring, and the rolling surface of the inner limit rollers contacts the inner wall of the turntable.

[0009] Preferably, the side wall of the furnace body is a 9-sided furnace body formed by nine planes connected side by side.

[0010] Preferably, a top cooling mechanism is also arranged above the furnace body, and the top cooling mechanism includes a mounting frame, a support seat, an electrode, a clamp, a clamping drive, a cooling fan, a cooling duct, and a blower. The mounting frame is fixed to the side walls of the furnace body on opposite sides, one end of the support seat is fixedly connected to the mounting frame, and the other end is installed with the clamp, the clamp consists of two opening and closing parts for clamping the electrode, one end of the clamping drive is fixed to the mounting frame, and the other end is connected to the clamp for tightening the clamp, the cooling fan is fixed to an external frame, one end of the cooling duct is connected to the cooling fan, and the other end is connected to the blower, the blower is arranged above the clamp, and the air outlet of the blower is arranged downward so that the wind blown out by the blower flows toward the inside of the furnace body.

[0011] Preferably, the air distributor is a hollow circular ring, which is located above the holder, and a plurality of air outlets are provided on the lower end surface of the hollow circular ring.

[0012] Preferably, transition casters are also arranged at the bottom of the rear half of the transition chassis, and an arc track is arranged on the upper surface of the rear base, so that the transition casters at the rear half of the transition chassis can swing inwards and outwards on the arc track on the rear base.

[0013] Preferably, the molten iron ladle includes a ladle body, a lifting and moving assembly, and an oxygen supply assembly. The ladle body is a cylinder with an opening at the top and a sealing bottom. The lifting and moving assembly is arranged on both sides of the outer wall of the ladle for matching and connecting with the lifting equipment. A hole for installing the oxygen supply assembly is opened at the bottom of the ladle body. The oxygen supply assembly includes an oxygen supply pipe and refractory bricks. The refractory bricks are installed in the hole at the bottom of the ladle. One end of the oxygen supply pipe passes through the refractory bricks to communicate with the inside of the ladle, and the other end is used to connect with an external oxygen supply system.

[0014] In the present invention, a dedicated track is provided for the furnace body, so that the molten iron ladle can move along the track, and the traction machine is controlled to control the position of the molten iron ladle so that it faces the tapping hole to achieve tapping. This solution replaces the solution of using a lifting device to lift the molten iron ladle, and the operation is more convenient, faster and more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of this system.

[0016] Figure 2 for Figure 1 Schematic diagram from another angle.

[0017] Figure 3 for Figure 1 The figure shows a schematic diagram of the inner rail 331, the outer rail 332, the inner guide wheel group 351, and the outer guide wheel group 352 arranged around the furnace body.

[0018] Figure 4 for Figure 1 The schematic diagram of the middle part of the structure is to show the structure of the furnace body and the rotating base.

[0019] Figure 5 , 6 The figures are a front view and a top view of a rotating base according to another embodiment.

[0020] Figure 7 for Figure 4 A front view of another embodiment of the present invention is shown. This figure shows a schematic diagram of a top cooling mechanism 50 with a support base 511 installed.

[0021] Figure 8 This is a bottom view of the cabinet.

[0022] Fig. 9 , 10 Schematic diagram of the iron ladle.

[0023] Fig.11 , 12 These are the top and bottom views of the ladle.

[0024] Fig.13 Schematic diagram of the oxygen supply assembly.

[0025] Fig.14 for Fig.13 Another angle diagram.

[0026] Fig.15 for Fig.13 main view.

[0027] Fig.16 , 17 It is a partial structural schematic diagram and front view of the oxygen-permeable component.

[0028] Fig.18 for Fig.17 A schematic diagram of another embodiment of the present invention.

[0029] Fig.19 This is the coordination diagram between the ladle and the pulling and shifting seat.

[0030] Fig. 20 , 21 Schematic diagram of the pull-shift seat.

[0031] Fig. 22 This is a schematic diagram of the pull-shift seat. In the figure, the rear base is hidden to show the transition chassis.

[0032] Fig.23 The schematic diagram of the outer ground wheel of the pull-shift seat derailing in the original design when passing through a curved track. The dotted quadrilateral in the figure is a quadrilateral composed of four universal ground wheels.

[0033] Fig.24 This is a schematic diagram of the front base and the rear base swinging relative to each other left and right when passing through a curved track in this solution. The dotted quadrilateral in the figure is a quadrilateral formed by the adaptive deformation of the four universal wheels after swinging left and right.

[0034] In the figure: furnace body 10, iron outlet 11, rotating base 20, base 21, roller 211, turntable 22, tooth hole 221, driving source 23, discharging mechanism 30, pulling and moving seat 31, pin hole 311, front base 312, rear base 313, side column 314, transition chassis 315, transition caster 316, iron ladle 32, ladle body 321, pouring port 3211, lifting ear 322, transverse rib plate 323, connecting rib plate 324, oxygen pipe 325, refractory brick 326, distribution plate 327, air inlet pipe 328, inner track 331, outer track 332, traction rope 34, inner guide wheel group 3 51, outer guide wheel group 352, first traction machine 361, second traction machine 362, first redirection pile 371, second redirection pile 372, air seal assembly 40, support frame 41, air seal cylinder 42, sealing plate 43, slot 44, top cooling mechanism 50, mounting frame 51, support seat 511, slide groove 512, electrode 52, clamp 53, clamping drive 531, slider 532, cooling fan 54, cooling duct 55, air distributor 56, air outlet 561, outer roller ring 61, outer limit roller 611, inner roller ring 62, inner limit roller 621, center shaft seat 63, and amplitude rod 631. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] See also Figure 1-3The embodiment of the present invention provides an integrated ferroalloy smelting system, including a furnace body 10, a rotating base 20, and a discharging mechanism 30. The top of the furnace body 10 is open, and a plurality of iron outlets 11 are provided on the side wall of the furnace body 10. The iron outlets 11 are sealed with mud bags. The rotating base 20 is arranged at the bottom of the furnace body 10. The rotating base 20 includes a base 21, a turntable 22, and a plurality of driving sources 23. The base 21 is fixed on the foundation. A plurality of rollers 211 are arranged on the upper surface of the base 21. The rollers 211 are in rolling cooperation with the base 21. The upper end surface of the rollers 211 is higher than the upper surface of the base 21. The turntable 22 is a circular disk body. The turntable 22 is arranged above the base 21, and the bottom of the turntable 22 is in rolling cooperation with the rollers 211. A plurality of tooth holes 221 are provided on the circumferential outer wall of the turntable 22, and the plurality of tooth holes 221 are evenly spaced on the outer wall of the turntable 22. The driving source 23 includes a driving motor and a driving gear, the driving motor is fixedly arranged, the driving gear is drivingly connected to the driving motor, the driving gear is meshingly connected to the tooth holes 221 of the turntable 22, and is used to drive the turntable 22 and the furnace body 10 to rotate. At least one loading port is provided on the side wall of the furnace body 10, and is used to feed ore materials into the furnace body 10. The discharging mechanism 30 includes a pulling seat 31, a ladle 32, an inner rail 331, an outer rail 332, a traction rope 34, an inner guide wheel group 351, an outer guide wheel group 352, a first traction machine 361, a second traction machine 362, a first redirection pile 371, The second redirection pile 372, the inner rail 331 and the outer rail 332 are arranged around the furnace body 10, the pulling and moving seat includes a base and a plurality of side columns 314, the base is a split structure, including a front base 312 and a rear base 313, the front base 312 and the rear base 313 are hinged, and ground wheels are arranged under the front base 312 and the rear base 313, and the ground wheels are universal wheels, and the universal wheels cooperate with the inner rail and the outer rail, and a transition chassis 315 is arranged under the side column 314, the front half of the transition chassis 315 is fixedly arranged on the front base 312, and the rear half of the transition chassis 315 is placed on the rear base 313 and is movably connected to the rear base 313, and the side columns 314 are connected to the transition chassis 3 15 forms a space for placing the molten iron ladle, so as to realize the convenient installation of the molten iron ladle 32 and the pulling and shifting seat 31, the inner guide wheel group 351 includes a plurality of guide wheels, and the arrangement direction of the plurality of guide wheels is the same as the direction of the inner track 331, the inner guide wheel group 351 is arranged between the inner track and the outer track, the outer guide wheel group 352 also includes a plurality of guide wheels, and the arrangement direction of the plurality of guide wheels is the same as the direction of the outer track 332, the outer guide wheel group 352 is arranged on the outer side of the outer track, the first redirection pile 371 and the second redirection pile 372 are arranged at the two ends of the inner track and the outer track, the first traction machine 361 is arranged close to the first redirection pile 371, and the second traction machine 362 is arranged close to the second redirection pile 372, and the traction rope 34 is a closed loop rope,The two ends of the traction rope 34 are respectively sleeved on the first traction machine 361, the first redirection pile 371 and the second traction machine 362, the second redirection pile 372. The inner traction rope 34 extends along the inner guide wheel group 351, and the outer traction rope 34 extends along the outer guide wheel group 352. The pull-shift seat 31 is connected to the traction rope 34, so that the pull-shift seat 31 is pulled by the traction rope 34 to move along the track.

[0037] In the present invention, a dedicated track is provided for the furnace body 10, so that the molten iron ladle 32 can move along the track, and the position of the molten iron ladle 32 is controlled by controlling the traction machine so that the molten iron ladle 32 faces the tapping hole 11 to achieve tapping. This solution replaces the solution of using a lifting device to lift the molten iron ladle 32, and the operation is more convenient, faster and more accurate.

[0038] This solution is different from the conventional winch structure. The winch needs to store part of the traction rope 34. Since the traction rope 34 is a vulnerable part, it needs to be replaced in one go, which causes waste of the traction rope 34. This solution uses a closed loop traction rope 34, which is much shorter than the traction rope 34 used in the winch, and the cost is greatly reduced when replacing it.

[0039] In this solution, the first traction machine 361 and the second traction machine 362 are controlled to actively traction drive each other, and the pull-shift seat 31 is pulled to move in the active driving direction. When moving in the opposite direction, only one traction member is needed as the active drive and the other is used as the passive drive. The traction machine can adopt existing equipment, such as a pair of rollers clamping the traction rope to drive it to move.

[0040] Since the ore-arcing furnace is relatively large, the area around the furnace body 10 is also relatively large, and the radius of the guide rail is also relatively large, which results in different arc lengths of the inner and outer rails. When the pull-shift seat 31 moves on it, due to the different arc lengths of the inner and outer rails, the distance traveled by the outer ground wheel of the pull-shift seat 31 on the outer rail 332 and the distance traveled by the inner ground wheel on the inner rail 331 are different. Obviously, in the same time and under the same force, the outer ground wheel travels a longer distance. The outer ground wheel and the inner ground wheel are universal wheels, and are universally connected to the pull-shift seat 31. The traction rope The position where 34 is connected to the pulling seat 31 is a hinge point, namely the pin hole 311. Although the hinge point is located at the center of the pulling seat 31, when the traction rope is pulled, the forces acting on the inner and outer sides of the pulling seat 31 are different. Since the four universal wheels under the pulling seat 31 form a quadrilateral with fixed side lengths and fixed angles, the four universal wheels of the quadrilateral are four force points, which act on the inner and outer tracks at the same time. When the track curvature is large, the chord length of the outer track between the two outer universal wheels will be lengthened, thereby making it easy for the outer ground wheel to derail or get stuck with the track.

[0041] In this solution, the base is set as a split structure, divided into a front base 312 and a rear base 313, which are hinged in the vertical direction, that is, the rear base 313 can swing inward and outward relative to the front base 312, so that the distance between the two rear ground wheels and the two front ground wheels changes, and the side length and angle of the quadrilateral formed by the four universal ground wheels can be changed. When the front outer ground wheel rotates, the rear outer ground wheel will not react to the front ground wheel, so that the cooperation between the front outer ground wheel and the rear outer ground wheel and the outer track is separate and independent, thereby improving their respective adaptability;

[0042] At the same time, when the rear base 313 swings inward and outward relative to the track, the transition chassis 315 is fixedly connected to the front base 312 at the front half, so the molten iron ladle is fixed, and the rear half is provided with the transition casters 316, so even if the rear base 313 swings inward and outward, the rear base 313 swings inward and outward relative to the transition chassis 315, and the rear half of the transition chassis 315 does not swing, that is, the molten iron ladle does not swing. Fig.23 , 24 .

[0043] This solution realizes the function of relative displacement of the pull-shift seat relative to the inner guide rail and the outer guide rail, and also satisfies the function of ensuring that the molten iron ladle is stable and does not move.

[0044] And the distances from the two tracks are equal. When the traction rope 34 pulls the pulling seat 31, the force acts on the pin hole 311, and the angle between the traction rope 34 and the pulling seat 31 is adaptively adjusted. There is no problem of getting stuck with the track due to different traction forces on the outer ground wheel and the inner ground wheel.

[0045] In the original design, a rigid connecting shaft is used to connect between the outer ground wheel and the inner ground wheel, and then the traction rope 34 is connected to the shaft. The traction rope 34 applies force to the shaft. Since the shaft is a rigid part, the torque acting on the outer ground wheel and the inner ground wheel is equal and is a fixed value. This causes the outer ground wheel and the inner ground wheel to have poor self-adjustment, and the rotation angles of the two wheels are the same, which easily causes the outer ground wheel to get stuck or derail with the outer track 332.

[0046] Furthermore, pin holes 311 are respectively provided at the front and rear ends of the pulling seat 31. The pin holes 311 are hinged to the pulling seat 31. The pin holes 311 are located on the center line of the pulling seat 31 so that the pin holes 311 are at the same distance from the inner rail 331 and the outer rail 332. The pin holes 311 are used to connect with the traction rope 34.

[0047] See also Figure 4Furthermore, an air sealing assembly 40 is arranged above the furnace body 10, and the air sealing assembly 40 is arranged at the feeding port. The air sealing assembly 40 includes a support frame 41, an air sealing cylinder 42, and a sealing plate 43. A slot 44 is also arranged on the side wall around the feeding port of the furnace body 10. The support frame 41 is fixedly mounted above the feeding port, and the cylinder seat of the air sealing cylinder 42 is fixed on the support frame 41. The piston end is connected to the sealing plate 43, and the sealing plate 43 is inserted into the slot 44.

[0048] The feeding port is set so that the feeding chute overlaps the feeding port when feeding, thereby reducing the height of the chute, reducing the height of the material entering the alloy liquid, reducing the splashing of the alloy liquid, slowing down the disturbance of the alloy liquid, and avoiding the impact of the alloy liquid and the material on the electrode 52. The sealing plate 43 is plugged from top to bottom, and the air sealing cylinder 42 presses the sealing plate 43 from above to avoid the problem of loose sealing of the sealing plate 43.

[0049] Furthermore, there are three feeding ports evenly distributed around the furnace body 10, and the heights of the three feeding ports are successively reduced. For example, the heights of the bottoms of the three feeding ports are 0.5m, 0.8m, and 1.2m from the mouth of the furnace body 10, respectively, so that the heights of the chute overlapped at the feeding ports are different. When there is less material in the furnace body 10, or when the material is just being added, the largest position of the feeding port can be selected for feeding, thereby reducing the height difference of the material falling and reducing the mechanical damage to the furnace body 10. When the height of the alloy liquid in the furnace body 10 is high, that is, during the smelting process, when replenishing the material, different feeding ports can also be selected for feeding according to the liquid level to avoid splashing of the liquid surface due to a large height difference, or the material being too close to the liquid surface.

[0050] See also Figure 5 , 6 Furthermore, an outer rolling ring 61 is arranged on the outer circumference of the turntable 22. The outer rolling ring 61 is an annular member fixed on the top of the base 21. The inner ring diameter of the outer rolling ring 61 is larger than the outer ring diameter of the turntable 22. A plurality of outer limit rollers 611 are arranged on the inner wall of the outer rolling ring 61. The outer limit rollers 611 are axially connected to the outer rolling ring 61 so that the outer limit rollers 611 roll vertically relative to the outer rolling ring 61, and the rolling surface of the outer limit rollers 611 contacts the outer wall of the turntable 22.

[0051] Furthermore, an inner rolling ring 62 is provided on the inner circumference of the turntable 22. The inner rolling ring 62 is an annular member fixed on the top of the base 21. The outer ring diameter of the inner rolling ring 62 is smaller than the inner ring diameter of the turntable 22. A plurality of inner limit rollers 621 are provided on the outer wall of the inner rolling ring 62. The inner limit rollers 621 are axially connected to the inner rolling ring 62 so that the inner limit rollers 621 can roll vertically relative to the inner rolling ring 62. The rolling surface of the inner limit rollers 621 contacts the inner wall of the turntable 22.

[0052] For example, a column shaft is arranged on the inner wall of the outer roller ring 61, and the outer limiting roller 611 is a cylinder connected to the column shaft. This solution limits the turntable 22 in both internal and external directions to avoid the center of the circle from moving when rotating for a long time.

[0053] Furthermore, a central shaft seat 63 and a spoke 631 are provided at the center of the base 21. The central shaft seat 63 is fixed at the center of the base 21. The spoke 631 is connected between the central shaft seat 63 and the turntable 22. The central shaft seat 63 rotates relative to the base 21. Thus, the turntable 22 is limited to prevent the center of the turntable 22 from moving during the rotation process.

[0054] The base 21, the turntable 22, and the rolling fit between the two in this solution belong to the prior art in this field and will not be described in detail here. For example, the solution in patent number 2018210209623.

[0055] Furthermore, the side wall of the furnace body 10 is a 9-sided furnace body 10 formed by connecting nine planes side by side. When the furnace body 10 rotates as a whole, an angle is formed between two adjacent plane side walls, and the existence of the angle can form a driving force on the alloy liquid in the furnace body 10, promoting the liquid to flow along the inner wall of the furnace body 10.

[0056] See also Figure 1-3 , 7-8, further, a top cooling mechanism 50 is provided above the furnace body 10, and the top cooling mechanism 50 includes a mounting frame 51, a support seat 511, an electrode 52, a clamp 53, a clamping drive 531, a cooling fan 54, a cooling duct 55, and an air distributor 56. The mounting frame 51 is fixed to the side walls of the furnace body 10 on opposite sides, one end of the support seat 511 is fixedly connected to the mounting frame 51, and the other end is provided with a clamp 53, and the clamp 53 is two opening and closing A component is used to hold the electrode 52 tightly. One end of the clamping drive 531 is fixed on the mounting frame 51, and the other end is connected to the clamp 53, and is used to tighten the clamp 53. The cooling fan 54 is fixed on the external frame. One end of the cooling duct 55 is connected to the cooling fan 54, and the other end is connected to the air distributor 56. The air distributor 56 is arranged above the clamp 53, and the air outlet 561 of the air distributor 56 is arranged downward so that the wind blown out by the air distributor 56 flows toward the inside of the furnace body 10.

[0057] The cooling fan 54 can cool down the surface of the electrode 52 and the alloy liquid around the electrode 52, thereby achieving the fastest cooling speed, ensuring that the temperature of the electrode 52 is stable and normal, and extending its service life.

[0058] Furthermore, a slide groove 512 is provided on the upper surface of one end of the support seat 511 close to the electrode 52, and the slide groove 512 is provided along the horizontal direction. A slider 532 is provided at the lower end of the clamp 53, and the slider 532 slides in cooperation with the slide groove 512, so that the support seat 511 can support the gravity of the clamp 53 while ensuring its horizontal movement, so as to clamp or release the electrode 52.

[0059] Furthermore, the clamping drive 531 is an oil cylinder, a cylinder seat of the oil cylinder is connected to the mounting frame 51 and a fixing frame, and a piston end is connected to the clamp 53 .

[0060] Furthermore, the air distributor 56 is a hollow circular ring, located above the holder 53, and a plurality of air outlets 561 are provided on the lower end surface of the hollow circular ring. In this scheme, the cold wind surrounds the circumferential outer wall of the electrode 52 and blows air from top to bottom, so that the outer wall of the electrode 52 is subjected to a uniform temperature, and the wind blown downward blows on the surface of the alloy liquid and then diffuses to the surroundings, thereby dispersing the temperature of the alloy liquid centered on the electrode 52 and diffusing to the surroundings, accelerating the temperature drop of the alloy liquid around the electrode 52 in a targeted manner, thereby rapidly cooling the end of the electrode 52 to avoid abnormal burning thereof.

[0061] See also Figure 19-22 Furthermore, a transition caster 316 is provided at the bottom of the rear half of the transition chassis 315 , and an arc track is provided on the upper surface of the rear base 313 , so that the transition caster 316 at the rear half of the transition chassis 315 can swing inwards and outwards on the arc track on the rear base 313 .

[0062] See also Figure 9-18 Furthermore, the molten iron ladle 32 includes a ladle body 321, a lifting and moving assembly, and an oxygen supply assembly. The ladle body 321 is a cylinder with an opening at the top and a sealing bottom. The lifting and moving assembly is arranged on both sides of the outer wall of the ladle body 321 for matching and connecting with the lifting equipment. A hole for installing the oxygen supply assembly is opened at the bottom of the ladle body 321. The oxygen supply assembly includes an oxygen supply pipe 325 and refractory bricks 326. The refractory bricks 326 are installed in the hole at the bottom of the ladle body 321. One end of the oxygen supply pipe 325 passes through the refractory bricks 326 to communicate with the inside of the ladle body 321, and the other end is used to connect with an external oxygen supply system.

[0063] Furthermore, a distribution plate 327 and a plurality of air inlet pipes 328 are provided at the end of the oxygen pipe 325. The distribution plate 327 is a circular plate body, and the interior of the distribution plate 327 is a hollow structure. A hole for installing the distribution plate 327 is provided at the bottom of the refractory brick 326. The end of the oxygen pipe 325 is connected to one end face of the distribution plate 327, and a plurality of air inlet pipes 328 are installed on the other end face of the distribution plate 327. The air inlet pipes 328 are connected to the hollow structure inside the distribution plate 327, and the other end passes through the enclosure 321 to be connected to the interior of the enclosure 321.

[0064] The distribution plate 327 is arranged at the bottom of the refractory brick 326, so as to be away from the high temperature environment inside the enclosure 321. The air inlet pipe 328 is supported by a high temperature resistant metal material. The arrangement of the distribution plate 327 allows the gas entering the enclosure 321 to flow steadily and slowly, stabilizes the gas pressure, avoids the impact of excessive local pressure, and also has the function of evenly distributing the incoming gas.

[0065] When tapping iron, the oxygen pipe 325 is opened in advance to maintain a high positive oxygen pressure in the oxygen pipe 325 to avoid the impact of molten iron entering. In addition, the setting of the distribution plate 327 can further keep the oxygen pipe 325 unobstructed. When the molten iron with impact force enters the encasement 321, some air inlet pipes 328 will be filled with molten iron, resulting in blockage. The molten iron may even enter the distribution plate 327. The distribution plate 327 has a certain space to accommodate part of the molten iron. In addition, due to the heat preservation effect of the refractory bricks 326, the distribution plate 327 will not be cold, and the molten iron entering will not condense. Therefore, the entrance of the oxygen pipe 325 will not be blocked.

[0066] Furthermore, the bottom of the distribution plate 327 is an inclined bottom, and the inlet of the oxygen pipe 325 is arranged at a high position at the bottom of the distribution plate 327. At this time, even if part of the molten iron enters, the molten iron will flow at a lower position of the inclined bottom and will not block the inlet of the oxygen pipe 325.

[0067] Furthermore, the arrangement direction of the air inlet pipe 328 is inclined from the center of the distribution plate 327 to the outside, so that the incoming gas diffuses from the center of the package 321 to the periphery, increasing its coverage area in the package 321 and increasing the coverage area in contact with the molten iron, thereby avoiding the disadvantage that after entering the package 321, the gas quickly floats upward due to its light specific gravity, causing part of the oxygen to be discharged without participating in the reaction.

[0068] Furthermore, a pouring port 3211 is provided at the top opening of the package body 321 .

[0069] Furthermore, the lifting assembly includes a lifting ear 322, a transverse rib plate 323, and a connecting rib plate 324. The lifting ear 322 is fixed on the side wall of the package body 321. The transverse rib plate 323 is arranged around the lifting ear 322. The transverse rib plate 323 is arranged along the transverse direction of the package body 321, and the length of the transverse rib plate 323 is greater than the connecting rib plate 324. The connecting rib plate 324 is connected between the transverse rib plate 323 and the lifting ear 322. The transverse rib plate 323 increases the area connected to the side wall of the package body 321. The connecting rib plate 324 is connected between the transverse rib plate 323 and the lifting ear 322, thereby enhancing the connection strength between the lifting ear 322 and the transverse rib plate 323, and transferring the force point of the lifting ear 322 to the transverse rib plate 323, thereby avoiding point contact between the lifting ear 322 and the package body 321.

[0070] The modules or units in the device of the embodiment of the present invention may be combined, divided or deleted according to actual needs.

[0071] What is disclosed above is only the preferred embodiment of this patent document, and of course it cannot be used to limit the scope of rights of the present invention. Moreover, the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. A person of ordinary skill in the art can understand that the implementation of all or part of the processes of the above-mentioned embodiments and the equivalent changes made in accordance with the claims of the present invention still fall within the scope covered by the invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any mark in the claims should not be regarded as limiting the claims involved.

[0072] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An integrated ferroalloy smelting system, characterized in that: The invention comprises a furnace body, a rotating base and a discharging mechanism. The top of the furnace body is open, and a plurality of iron outlets are provided on the side wall of the furnace body. The iron outlets are sealed with mud bags. The rotating base is arranged at the bottom of the furnace body. The rotating base comprises a base, a turntable and a plurality of driving sources. The base is fixed on the foundation. A plurality of rollers are arranged on the upper surface of the base. The rollers are in rolling cooperation with the base. The upper end surface of the rollers is higher than the upper surface of the base. The turntable is a circular disk body. The turntable is arranged above the base, and the bottom of the turntable is in rolling cooperation with the rollers. A plurality of tooth holes are provided on the circumferential outer wall of the turntable. The plurality of tooth holes are evenly distributed on the outer wall of the turntable at equal intervals. The driving source comprises a driving motor and a driving gear, a driving motor is fixedly arranged, the driving gear is transmission-connected with the driving motor, the driving gear is meshingly connected with the tooth holes of the turntable, and is used to drive the turntable and the furnace body to rotate, and at least one loading port is opened on the side wall of the furnace body, and is used to feed ore materials into the furnace body, the discharging mechanism includes a pulling seat, a ladle, an inner track, an outer track, a traction rope, an inner guide wheel group, an outer guide wheel group, a first traction machine, a second traction machine, a first redirecting pile, and a second redirecting pile, the inner track and the outer track are arranged around the furnace body, the pulling seat includes a base and a plurality of side columns, the base is a split structure, including a front base, a rear base, and a front bottom The seat and the rear base are hinged, and ground wheels are arranged under the front base and the rear base. The ground wheels are universal wheels, and the universal wheels cooperate with the inner track and the outer track. A transition chassis is also arranged under the side column, and the front half of the transition chassis is fixedly arranged on the front base, and the rear half of the transition chassis is placed on the rear base and movably connected with the rear base. A space for placing a molten iron ladle is formed between the side column and the transition chassis to realize convenient installation of the molten iron ladle and the pulling and shifting seat. The inner guide wheel group includes a plurality of guide wheels, and the arrangement direction of the plurality of guide wheels is the same as the direction of the inner track. The inner guide wheel group is arranged between the inner track and the outer track, and the outer guide wheel group also includes The invention comprises a plurality of guide wheels, and the arrangement direction of the plurality of guide wheels is the same as the direction of the outer track, the outer guide wheel group is arranged on the outer side of the outer track, the first redirection pile and the second redirection pile are arranged at the two ends of the inner track and the outer track, the first traction machine is arranged close to the first redirection pile, and the second traction machine is arranged close to the second redirection pile, the traction rope is a closed-loop rope, and the two ends of the traction rope are respectively sleeved on the first traction machine and the first redirection pile and the second traction machine and the second redirection pile, the inner traction rope extends along the inner guide wheel group, the outer traction rope extends along the outer guide wheel group, and the pull-shift seat is connected with the traction rope, so that the pull-shift seat is pulled by the traction rope to move along the track;A gas seal assembly is also arranged above the furnace body, and the gas seal assembly is arranged at the feeding port. The gas seal assembly includes a support frame, a gas seal cylinder, and a sealing plate. A slot is also arranged on the side wall around the feeding port of the furnace body. The support frame is fixedly arranged above the feeding port, and the cylinder seat of the gas seal cylinder is fixed on the support frame. The piston end is connected to the sealing plate, and the sealing plate is inserted into the slot. An outer rolling ring is also arranged on the outer circumference of the turntable. The outer rolling ring is an annular member, fixed above the base, and the inner ring diameter of the outer rolling ring is larger than the outer ring diameter of the turntable. A plurality of outer limit rollers are arranged on the inner wall of the outer rolling ring. The outer limit roller is axially connected to the outer rolling ring so that the outer limit roller rolls vertically relative to the outer rolling ring, and the rolling surface of the outer limit roller contacts the outer wall of the turntable. ; 2. The integrated ferroalloy smelting system according to claim 1, characterized in that: Pin holes are also provided at the front end of the front base and the rear end of the rear base of the pull-shift seat respectively. The pin holes are located on the center line of the pull-shift seat so that the pin holes are at the same distance from the inner track and the outer track. The pin holes are used to connect with the traction rope.

3. The integrated ferroalloy smelting system according to claim 2, characterized in that: An inner rolling ring is also arranged on the inner circumference of the turntable. The inner rolling ring is an annular part fixed on the top of the base. The outer ring diameter of the inner rolling ring is smaller than the inner ring diameter of the turntable. A plurality of inner limit rollers are arranged on the outer wall of the inner rolling ring. The inner limit rollers are axially connected to the inner rolling ring so that the inner limit rollers can roll vertically relative to the inner rolling ring, and the rolling surface of the inner limit rollers contacts the inner wall of the turntable.

4. The integrated ferroalloy smelting system according to claim 3, characterized in that: The side wall of the furnace body is a nine-sided furnace body formed by nine planes connected side by side.

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