CN112094976A - Bottom rotation type ferroalloy smelting system - Google Patents

Abstract

The invention relates to a bottom rotary type ferroalloy smelting system which comprises a furnace body, a rotary base and a discharging mechanism, wherein the rotary base comprises a base, a rotary table and a plurality of driving sources, the discharging mechanism comprises a pulling and moving base, a ladle, an inner side rail, an outer side rail, a traction rope, an inner side guide wheel group, an outer side guide wheel group, a first tractor, a second tractor, a first direction-changing foundation pile and a second direction-changing foundation pile.

Description

Bottom rotation type ferroalloy smelting system

Technical Field

The invention relates to the technical field of alloy production equipment, in particular to a bottom rotary type iron alloy smelting system.

Background

The ferrosilicon becomes an important raw material in steel smelting, a smelting furnace or an ore-smelting furnace is mainly adopted for production, feeding, smelting and tapping are continuous processes in the production of the ore-smelting furnace, each link in the process is important, how to reduce the labor force of operators and simplify the operation procedure in modern production are more and more important problems.

Disclosure of Invention

There is a need for a bottom-spinning ferroalloy smelting system.

A bottom rotation type ferroalloy smelting system comprises a furnace body, a rotary base and a discharging mechanism, wherein a plurality of tap holes are formed in the side wall of the furnace body through an opening at the top of the furnace body, mud bags are blocked in the tap holes, the rotary base is arranged at the bottom of the furnace body and comprises a base, a turntable and a plurality of driving sources, the base is fixed on a foundation, a plurality of carrier rollers are arranged on the upper surface of the base, the carrier rollers are in rolling fit with the base, the upper end surface of each carrier roller is higher than the upper surface of the base, the turntable is a circular disc body, the turntable is arranged above the base, the bottom of the turntable is in rolling fit with the carrier rollers, a plurality of tooth holes are further formed in the circumferential outer wall of the turntable, the tooth holes are uniformly distributed on the outer wall of the turntable at equal intervals, each driving source comprises a driving motor and a driving gear, the driving motor is fixedly arranged, the discharging mechanism comprises a pulling and moving seat, a ladle, an inner side rail, an outer side rail, a traction rope, an inner side guide wheel set, an outer side guide wheel set, a first tractor, a second tractor, a first direction-changing foundation pile and a second direction-changing foundation pile, wherein the inner side rail and the outer side rail are arranged around the furnace body, the ladle is placed above the pulling and moving seat, the lower part of the pulling and moving seat is in rolling fit with the inner side rail and the outer side rail, the inner side guide wheel set comprises a plurality of guide wheels, the arrangement direction of the plurality of guide wheels is the same as that of the inner side rail, the inner side guide wheel set is arranged between the inner side rail and the outer side rail, the outer side guide wheel set also comprises a plurality of guide wheels, the arrangement direction of the plurality of guide wheels is the same as that of the outer side rail, and the outer side guide wheel set is arranged outside the outer side rail, first change to foundation pile, second and change to foundation pile and set up in two tip of inboard track and outside track, first tractor is close to first change to foundation pile and sets up, and the second tractor is close to the second and changes to the foundation pile and set up, the haulage rope is a closed loop rope, and first tractor is located to the cover respectively at the both ends of haulage rope, first change to on the foundation pile and second tractor, second change to on the foundation pile, inboard haulage rope extends along inboard guide pulley group, and outside haulage rope extends along outside guide pulley group, pulls and moves the seat and be connected with the haulage rope to pull through the haulage rope and move the seat and move along the track.

Preferably, the front end and the rear end of the pulling and moving seat are respectively provided with a pin hole, the pin holes are hinged with the pulling and moving seat, the pin holes are located on a central line of the pulling and moving seat, so that the distance between the pin holes and the inner side track and the distance between the pin holes and the outer side track are the same, and the pin holes are used for being connected with the traction rope.

Preferably, still set up the atmoseal subassembly above the furnace body, the atmoseal subassembly set up in material loading mouth department, the atmoseal subassembly includes support frame, atmoseal cylinder, and the shrouding still sets up the slot on the lateral wall around the furnace body material loading mouth, and the support frame fixed frame is located the material loading mouth top, and on the cylinder seat of atmoseal cylinder was fixed in the support frame, the piston end was connected shrouding, shrouding are pegged graft in the slot.

Preferably, an outer rolling ring is further arranged on the outer circumference of the turntable, the outer rolling ring is an annular piece and is fixed above the base, the diameter of an inner ring of the outer rolling ring is larger than that of an outer ring of the turntable, a plurality of outer limiting rollers are arranged on the inner wall of the outer rolling ring, the outer limiting rollers are connected with the outer rolling ring through shafts, so that the outer limiting rollers vertically roll relative to the outer rolling ring, and the rolling surface of each outer limiting roller is in contact with the outer wall of the turntable.

Preferably, an inner rolling ring is further arranged on the inner circumference of the turntable, the inner rolling ring is an annular part and is fixed above the base, the diameter of the outer ring of the inner rolling ring is smaller than that of the inner ring of the turntable, a plurality of inner limiting rollers are arranged on the outer wall of the inner rolling ring, the inner limiting rollers are connected with the inner rolling ring through shafts, so that the inner limiting rollers vertically roll relative to the inner rolling ring, and the rolling surface of each inner limiting roller is in contact with the inner wall of the turntable.

Preferably, the side wall of the furnace body is an nonagon furnace body formed by connecting nine planes side by side.

Preferably, still set up top cooling body above the furnace body, top cooling body includes mounting bracket, supporting seat, electrode, holder, centre gripping drive, cooling blower, cooling tube, air distributor, the mounting bracket is fixed in on the relative both sides lateral wall of furnace body, the one end and the mounting bracket fixed connection of supporting seat, other end installation holder, the holder is two parts that open and shut for hold the electrode tightly, on centre gripping driven one end was fixed in the mounting bracket, the other end was connected with the holder, be used for the holder tightly in the top, on cooling blower was fixed in outside frame, cooling blower was connected to the one end of cooling tube, air distributor was connected to the other end, air distributor sets up in the holder top, and air distributor's air outlet sets up downwards to the wind that makes air distributor blow off flows towards the furnace body is inside.

Preferably, the air distributor is a hollow circular ring and is positioned above the clamp holder, and a plurality of air outlets are formed in the lower end face of the hollow circular ring.

Preferably, the pulling and moving seat comprises a base and a plurality of side upright columns, the lower portion of the base is arranged on ground wheels matched with the inner side rails and the outer side rails, the side upright columns are arranged above the base, and a ladle is placed between the opposite side upright columns so as to achieve the convenient installation of the ladle and the pulling and moving seat.

Preferably, the ladle includes the inclusion, hangs and moves the subassembly, leads to the oxygen subassembly, the inclusion is the barrel that open-top, bottom were sealed, hangs and moves the subassembly and sets up in inclusion outer wall both sides for be connected with lifting device is supporting, set up the hole that supplies to lead to the oxygen subassembly installation in the inclusion bottom, lead to the oxygen subassembly including leading to oxygen pipe, resistant firebrick installs in the hole of inclusion bottom, lead to oxygen pipe's one end and pass resistant firebrick to communicate with the inclusion is inside, the other end is used for being connected with outside oxygen system.

In the invention, a special track is arranged for the furnace body, so that the ladle can move along the track, and the moving position of the ladle is controlled by controlling the tractor to ensure that the ladle is opposite to the taphole, thereby realizing tapping. The scheme replaces the scheme of using the hoisting equipment to hoist and move the ladle, and is more convenient and rapid to operate and higher in accuracy.

Drawings

Fig. 1 is a schematic structural diagram of the system.

Fig. 2 is another angle schematic of fig. 1.

Fig. 3 is a top view of fig. 1. This figure shows the inner track 331, the outer track 332, the inner guide pulley set 351 and the outer guide pulley set 352 arranged around the furnace.

Fig. 4 is a schematic view of a portion of the structure of fig. 1. In order to show the structure of the furnace body and the rotary base.

Fig. 5 and 6 are front and top views of another embodiment of a swivel base.

Fig. 7 is a front view of the alternative embodiment of fig. 4. A schematic view of the top cooling mechanism 50 with the support base 511 is shown.

Fig. 8 is a bottom view of the air distributor.

Fig. 9 and 10 are schematic views of ladles.

Fig. 11 and 12 are top and bottom views of the ladle.

FIG. 13 is a schematic view of an oxygen delivery assembly.

Fig. 14 is another angular schematic of fig. 13.

Fig. 15 is a front view of fig. 13.

Fig. 16 and 17 are partial structural schematic views and front views of the oxygen introducing assembly.

Fig. 18 is a schematic view of another embodiment of fig. 17.

FIG. 19 is a schematic view of another embodiment of a pulling and shifting block.

FIG. 20 shows the ladle in combination with a pulling seat.

In the figure: the furnace body 10, the taphole 11, the rotary base 20, the base 21, the carrier roller 211, the rotary table 22, the tooth hole 221, the driving source 23, the discharge mechanism 30, the pulling and moving seat 31, the pin hole 311, the base 312, the side column 313, the ladle 32, the ladle body 321, the pouring port 3211, the lifting lug 322, the transverse rib plate 323, the connecting rib plate 324, the oxygen pipe 325, the refractory brick 326, the distribution disc 327, the air inlet pipe 328, the inner rail 331, the outer rail 332, the hauling rope 34, the inner guide wheel set 351, the outer guide wheel set 352, the first tractor 361, the second tractor 362, the first redirecting base pile 371, the second redirecting base pile 372, the gas seal assembly 40, the support frame 41, the gas seal cylinder 42, the closing plate 43, the slot 44, the top cooling mechanism 50, the mounting frame 51, the support seat 511, the chute 512, the electrode 52, the gripper 53, the gripping drive 531, the slider 532, the cooling fan 54, the cooling duct 55, the air distributor, Outer rolling ring 61, outer limit roller 611, inner rolling ring 62, inner limit roller 621, center hub 63, and web 631.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1-3, an embodiment of the present invention provides a bottom rotation type ferroalloy smelting system, including a furnace body 10, a rotating base 20, and a discharging mechanism 30, where the top of the furnace body 10 is open, a plurality of tap holes 11 are further formed in a side wall of the furnace body 10, mud packs are sealed in the tap holes 11, the rotating base 20 is disposed 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 a foundation, a plurality of carrier rollers 211 are disposed on an upper surface of the base 21, the carrier rollers 211 are in rolling fit with the base 21, an upper end surface of the carrier rollers 211 is higher than an upper surface of the base 21, the turntable 22 is a circular disk body, the turntable 22 is disposed above the base 21, and a bottom of the turntable 22 is in rolling fit with the carrier rollers 211, a plurality of tooth holes 221 are further formed in an outer circumferential wall of the turntable 22, the driving source 23 comprises a driving motor and a driving gear, the driving motor is fixedly arranged, the driving gear is in transmission connection with the driving motor, the driving gear is in meshing connection with a tooth hole 221 of the rotary disc 22 and is used for driving the rotary disc 22 and the furnace body 10 to rotate, at least one feeding hole is formed in the side wall of the furnace body 10 and is used for feeding ore materials into the furnace body 10, the discharging mechanism 30 comprises a pulling and moving seat 31, a ladle 32, an inner side rail 331, an outer side rail 332, a traction rope 34, an inner side guide wheel set 351, an outer side guide wheel set 352, a first traction machine 361, a second traction machine 362, a first direction-changing base pile 371 and a second direction-changing base pile 372, the inner side rail 331 and the outer side rail 332 are arranged around the furnace body 10, the ladle 32 is placed above the pulling and is in rolling fit with the inner side rail 331 and the outer side rail 332, the inner side guide wheel set 351 comprises a plurality of guide, the inboard guide pulley group 351 is disposed between the inboard track and the outboard track, the outboard guide pulley group 352 also includes a plurality of guide pulleys, and the arrangement direction of the plurality of guide wheels is the same as the direction of the outer rail 332, the outer guide wheel group 352 is arranged at the outer side of the outer rail, the first direction-changing foundation pile 371 and the second direction-changing foundation pile 372 are arranged at the two ends of the inner rail and the outer rail, the first tractor 361 is arranged near the first direction-changing foundation pile 371, the second tractor 362 is arranged near the second direction-changing foundation pile 372, the haulage rope 34 is a closed loop rope, and the both ends of haulage rope 34 are located respectively on first tractor 361, the first foundation pile 371 that changes and on second tractor 362, the second foundation pile 372 that changes, and inboard haulage rope 34 extends along inboard guide pulley group 351, and the haulage rope 34 in the outside extends along outside guide pulley group 352, draws and moves seat 31 and is connected with haulage rope 34 to draw through haulage rope 34 pulling and move seat 31 along track movement.

In the invention, a special track is arranged for the furnace body 10, so that the ladle 32 can move along the track, and the moving position of the ladle 32 is controlled by controlling the tractor to ensure that the moving position is opposite to the taphole 11, thereby realizing tapping. This scheme has replaced the scheme that uses lifting device to hang and move ladle 32, and it is more convenient, swift to operate, and the accuracy is higher.

Different from the conventional winch structure in this scheme, partial haulage rope 34 needs to be stored to the winch, because haulage rope 34 is the vulnerable part, needs whole root disposable change during the change, this waste that just causes haulage rope 34. The closed shape haulage rope 34 that returns is used to this scheme, and its length is far less than the haulage rope 34 of the use of hoist engine, also very big reduction cost during the change.

In the scheme, by controlling the first tractor 361 and the second tractor 362, the two tractors are driven to be active traction with each other, the pulling moving seat 31 is pulled to move towards the active driving direction, and when the two tractors move in opposite directions, only the traction piece in one direction is required to be used as the active driving, and the other one is used as the driven driving. The tractor can adopt the existing equipment, such as a pair of rollers clamping a traction rope to drive the traction rope to move.

Because the submerged arc furnace has a larger shape, the area around the furnace body 10 is larger, the radius of the guide rail is larger, which causes the arc length of the inner side track and the outer side track to be different, when the pulling and moving seat 31 moves on the guide rail, the distance traveled by the outer side ground wheels of the pulling and moving seat 31 on the outer side track 332 and the distance traveled by the inner side ground wheels on the inner side track 331 are different due to the different arc lengths, obviously, the distance traveled by the outer side ground wheels is longer under the same stress in the same time, the outer side ground wheels and the inner side ground wheels are universal wheels and are in universal connection with the pulling and moving seat 31, the position where the traction rope 34 is connected with the pulling and moving seat 31 is a hinge point, namely a pin hole 311, which is located at the center of the pulling and moving seat 31 and is at the same distance with the two tracks, when the traction rope 34 pulls the pulling and moving seat 31, an acting force acts on the pin hole 311, the included angle between the traction rope 34 and the, the problem that the outer side land wheel and the inner side land wheel are blocked with the track due to different traction forces does not exist.

In the original design, adopt a rigid connection axle to connect between outside land wheel and inboard land wheel, connect haulage rope 34 with this axle again, haulage rope 34 will exert oneself and act on this axle, because this axle is the rigidity piece, its moment that acts on outside land wheel and inboard land wheel equals, is a fixed value, this just causes outside land wheel and inboard land wheel self-interacting nature relatively poor, the turned angle of two wheels is the same, the problem that outside land wheel blocks or derails with outside track 332 appears very easily.

Furthermore, pin holes 311 are respectively arranged at the front end and the rear end of the pulling and moving seat 31, the pin holes 311 are hinged with the pulling and moving seat 31, the pin holes 311 are positioned on the central line of the pulling and moving seat 31, so that the pin holes 311 are the same distance from the inner rail 331 and the outer rail 332, and the pin holes 311 are used for being connected with the traction rope 34.

Referring to fig. 4, further, an air seal assembly 40 is further arranged above the furnace body 10, the air seal assembly 40 is arranged at the feeding port, the air seal assembly 40 includes a support frame 41, an air seal cylinder 42 and a seal plate 43, a slot 44 is further arranged on a side wall around the feeding port of the furnace body 10, the support frame 41 is fixedly arranged above the feeding port, a cylinder seat of the air seal cylinder 42 is fixed on the support frame 41, a piston end is connected with the seal plate 43, and the seal plate 43 is inserted into the slot 44.

The feeding hole is arranged, when feeding, the feeding chute is lapped on the feeding hole, so that the height of the chute is reduced, the height of the material entering the alloy liquid is reduced, the splashing of the alloy liquid is reduced, the disturbance of the alloy liquid is slowed down, and the impact of the alloy liquid and the material on the electrode 52 is avoided. The closing plate 43 is inserted from top to bottom, and the air seal cylinder 42 compresses the closing plate 43 from the top, so that the problem that the closing plate 43 is not tight in plugging is avoided.

Further, the material loading mouth is the equipartition in the three around furnace body 10, the height of three material loading mouth reduces in proper order. For example, the heights of the bottoms of the three feeding ports are respectively 0.5m, 0.8 m and 1.2 m from the opening part of the furnace body 10, so that the chute is lapped on the feeding ports at different heights, when the materials in the furnace body 10 are less or just start to feed, the position with the largest feeding port can be selected for feeding, the falling height difference of the materials is reduced, the mechanical damage to the furnace body 10 is reduced, the alloy liquid in the furnace body 10 is higher, namely, in the smelting process, during feeding, the feeding of different feeding ports can be selected according to the liquid level height, and the phenomenon that the liquid level splashes due to too large height difference or the materials are too close to the liquid level is avoided.

Referring to fig. 5 and 6, further, an outer rolling ring 61 is further arranged on the outer circumference of the turntable 22, the outer rolling ring 61 is an annular member and is fixed above the base 21, the diameter of the inner ring of the outer rolling ring 61 is larger than that of the outer ring 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 connected with the outer rolling ring 61 through shafts, so that the outer limit rollers 611 vertically roll relative to the outer rolling ring 61, and the rolling surface of the outer limit rollers 611 contacts with the outer wall of the turntable 22.

Further, an inner rolling ring 62 is arranged on the inner circumference of the rotary disc 22, the inner rolling ring 62 is an annular part and is fixed above the base 21, the diameter of the outer ring of the inner rolling ring 62 is smaller than that of the inner ring of the rotary disc 22, a plurality of inner limiting rollers 621 are arranged on the outer wall of the inner rolling ring 62, the inner limiting rollers 621 are connected with the inner rolling ring 62 through shafts, so that the inner limiting rollers 621 vertically roll relative to the inner rolling ring 62, and the rolling surfaces of the inner limiting rollers 621 are in contact with the inner wall of the rotary disc 22.

For example, a column shaft is provided on the inner wall of the outer rolling ring 61, and the outer limit roller 611 is a cylindrical body connected to the column shaft. This scheme is spacing through inside and outside two directions to carousel 22, avoids the centre of a circle off position when rotating for a long time.

Further, a center shaft base 63 and a lever 631 are provided at the center position of the base 21, the center shaft base 63 is fixed to the center of the base 21, the lever 631 is connected between the center shaft base 63 and the turntable 22, and the center shaft base 63 rotates relative to the base 21. Thereby limiting the turntable 22 and avoiding the displacement of the center of a circle in the process of rotating the turntable 22.

The base 21, the turntable 22 and the rolling fit therebetween in this embodiment belong to the prior art in the field, and are not described herein again. Such as the solution in patent No. 2018210209623.

Further, the lateral wall of the furnace body 10 is a nonagon furnace body 10 formed by connecting nine planes side by side. When the furnace body 10 integrally rotates, an included angle is formed between two adjacent plane side walls, and due to the included angle, alloy liquid in the furnace body 10 can be stirred, so that the liquid is promoted to flow along the inner wall of the furnace body 10.

Referring to fig. 1-3 and 7-8, further, a top cooling mechanism 50 is further arranged above the furnace body 10, the top cooling mechanism 50 includes an installation frame 51, a support base 511, an electrode 52, a clamp 53, a clamping driver 531, a cooling fan 54, a cooling pipeline 55, and an air distributor 56, the installation frame 51 is fixed on the side walls of the furnace body 10 at two opposite sides, one end of the support base 511 is fixedly connected with the installation frame 51, the other end is provided with the clamp 53, the clamp 53 is two open-close members for holding the electrode 52 tightly, one end of the clamping driver 531 is fixed on the installation frame 51, the other end is connected with the clamp 53 for abutting against the clamp 53, the cooling fan 54 is fixed on the external frame, one end of the cooling pipeline 55 is connected with the cooling fan 54, the other end is connected with the air distributor 56, the air distributor 56 is arranged above the clamp 53, and an air, so that the air blown from the air distributor 56 flows toward the inside of the furnace body 10.

The cooling fan 54 can cool the alloy liquid on the surface of the electrode 52 and around the electrode 52, so as to realize cooling at the highest speed, ensure the stable and normal temperature of the electrode 52 and prolong the service life of the electrode.

Further, a sliding groove 512 is formed in the upper surface of one end, close to the electrode 52, of the supporting seat 511, the sliding groove 512 is formed in the horizontal direction, a sliding block 532 is arranged at the lower end of the clamp holder 53, and the sliding block 532 is in sliding fit with the sliding groove 512, so that the supporting seat 511 can move in the horizontal direction while supporting the gravity of the clamp holder 53, and the electrode 52 can be held tightly or loosened.

Further, the clamping driver 531 is an oil cylinder, a cylinder seat of the oil cylinder is connected with the fixed frame of the mounting frame 51, and a piston end is connected with the clamp holder 53.

Further, the air distributor 56 is a hollow circular ring, and is located above the holder 53, and a plurality of air outlets 561 are formed on the lower end surface of the hollow circular ring. In the scheme, cold air surrounds the circumferential outer wall of the electrode 52 and blows air from top to bottom, so that the temperature borne by the outer wall of the electrode 52 is uniform and consistent, the air blown downwards blows the air on the liquid level of the alloy liquid and spreads to the periphery, the temperature of the alloy liquid taking the electrode 52 as the center is blown away and spreads to the periphery, the temperature reduction of the alloy liquid around the electrode 52 is accelerated in a targeted manner, the end part of the electrode 52 is cooled rapidly, and abnormal burning loss of the electrode is avoided.

Referring to fig. 19 and 20, further, the pulling and moving seat 31 includes a base 312 and a plurality of side columns 313, the lower portion of the base 312 is disposed on the ground wheels matched with the inner side rail 331 and the outer side rail 332, the side columns 313 are disposed above the base 312, and the ladle 32 is placed between the opposite side columns 313, so that the ladle 32 and the pulling and moving seat 31 can be conveniently installed.

Referring to fig. 9 to 18, further, the ladle 32 includes a ladle body 321, a hanging and moving assembly, and an oxygen supply assembly, where the ladle body 321 is a cylinder with an open top and a sealed bottom, the hanging and moving assembly is disposed on two sides of an outer wall of the ladle body 321 and is used for being connected with a hoisting device in a matching manner, a hole for installing the oxygen supply assembly is formed in the bottom of the ladle body 321, the oxygen supply assembly includes an oxygen supply pipe 325 and a refractory brick 326, the refractory brick 326 is installed in the hole in the bottom of the ladle body 321, one end of the oxygen supply pipe 325 passes through the refractory brick 326 to be communicated with the interior of the ladle body 321, and the other.

Further, a distribution disc 327 and a plurality of air inlet pipes 328 are arranged at the end part of the oxygen inlet pipe 325, the distribution disc 327 is a circular center disc body, the inside of the distribution disc 327 is of a hollow structure, holes for installing the distribution disc 327 are formed in the bottom of the refractory brick 326, the end part of the oxygen inlet pipe 325 is communicated with one end face of the distribution disc 327, the plurality of air inlet pipes 328 are installed on the other end face of the distribution disc 327, the air inlet pipes 328 are connected with the hollow structure in the distribution disc 327, and the other end of the air inlet pipes penetrates through the bag body 321 to be communicated with the inside of the bag body 321.

The distribution disc 327 sets up in the bottom of resistant firebrick 326 to keep away from the inside high temperature environment of inclusion 321, intake pipe 328 adopts high temperature resistant metal material to support, and the setting of distribution disc 327 makes the gaseous stationary flow that gets into in inclusion 321 slow stream, makes its atmospheric pressure stable, avoids the too big impact of local pressure, still has the gaseous evenly distributed's that will get into effect.

When tapping, the oxygen inlet pipe 325 is opened in advance, so that a large pressure oxygen inlet positive pressure is kept in the oxygen inlet pipe 325, molten iron is prevented from entering by impact, the distribution disc 327 can further keep the oxygen inlet pipe 325 smooth, when molten iron with impact force enters the ladle body 321, the individual air inlet pipe 328 can be filled with the molten iron to cause blocking, the molten iron even enters the distribution disc 327, the distribution disc 327 has a certain space to contain partial molten iron, and the distribution disc 327 has the heat preservation effect of the refractory bricks 326, the distribution disc 327 cannot be in a cold state, the entered molten iron cannot be condensed, and therefore, the inlet of the oxygen inlet pipe 325 cannot be blocked.

Further, the bottom of the distribution disc 327 is an inclined bottom, and the inlet of the oxygen pipe 325 is disposed at a high position of the bottom of the distribution disc 327. At this time, even if part of the molten iron enters, the molten iron flows down to a lower position of the inclined bottom, and the inlet of the oxygen introducing pipe 325 is not blocked.

Further, 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 gas introduced is diffused from the center of the inclusion 321 to the periphery, thereby increasing the coverage area of the gas in the inclusion 321 and increasing the coverage area in contact with the molten iron. The defect that part of oxygen is discharged without participating in the reaction because the gas is floated upwards quickly due to light specific gravity after entering the bag body 321 is avoided.

Further, a pouring port 3211 is provided at the top opening of the bag body 321.

Further, the hoisting and moving assembly comprises a lifting lug 322, a transverse rib plate 323 and a connecting rib plate 324, wherein the lifting lug 322 is fixed on the side wall of the ladle body 321, the transverse rib plate 323 is arranged around the lifting lug 322, the transverse rib plate 323 is arranged along the transverse direction of the ladle body 321, the length of the transverse rib plate 323 is greater than that of the connecting rib plate 324, and the connecting rib plate 324 is connected between the transverse rib plate 323 and the lifting lug 322. The area of connection with the side wall of the ladle body 321 is increased by the transverse rib plate 323, and the connecting rib plate 324 is connected between the transverse rib plate 323 and the lifting lug 322, so that the connection strength between the lifting lug 322 and the transverse rib plate 323 is enhanced, the stress point of the lifting lug 322 is transferred to the transverse rib plate 323, and the point contact between the lifting lug 322 and the ladle body 321 is avoided.

The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.

The above disclosure is only illustrative of the preferred embodiments of the present invention, which should not be taken as limiting the scope of the invention, but rather the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or a portion of the above-described embodiments may be practiced and equivalents thereof may be resorted to as falling within the scope of the invention as claimed. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A bottom rotation type ferroalloy smelting system is characterized in that: the rotary furnace comprises a furnace body, a rotary base and a discharging mechanism, wherein a plurality of tapping holes are formed in the side wall of the furnace body at the top opening of the furnace body, mud bags are blocked in the tapping holes, the rotary base is arranged at the bottom of the furnace body and comprises a base, a turntable and a plurality of driving sources, the base is fixed on a foundation, a plurality of carrier rollers are arranged on the upper surface of the base, the carrier rollers are matched with the base in a rolling manner, the upper end surfaces of the carrier rollers are higher than the upper surface of the base, the turntable is a circular turntable body, the turntable is arranged above the base, the bottom of the turntable is matched with the carrier rollers in a rolling manner, a plurality of tooth holes are formed in the outer wall of the circumference of the turntable, the tooth holes are uniformly distributed on the outer wall of the turntable at equal intervals, the driving sources comprise a driving motor and a driving gear, the driving motor is fixedly arranged, the side wall of the furnace body is provided with at least one feeding hole for feeding ore materials into the furnace body, the discharging mechanism comprises a pulling seat, a ladle, an inner side rail, an outer side rail, a traction rope, an inner side guide wheel set, an outer side guide wheel set, a first tractor, a second tractor, a first direction-changing foundation pile and a second direction-changing foundation pile, the inner side rail and the outer side rail are arranged around the furnace body, the ladle is placed above the pulling seat, the lower part of the pulling seat is matched with the inner side rail and the outer side rail in a rolling way, the inner side guide wheel set comprises a plurality of guide wheels, the arrangement direction of the plurality of guide wheels is the same as that of the inner side rail, the inner side guide wheel set is arranged between the inner side rail and the outer side rail, the outer side guide wheel set also comprises a plurality of guide wheels, the arrangement direction of the plurality of guide wheels is the same as that of the outer side rail, the first direction-changing foundation pile and the second direction-, first tractor is close to first foundation pile setting that changes to, and the second tractor is close to the second and changes to the foundation pile setting, the haulage rope is a closed loop rope, and on first tractor, first change to the foundation pile and second tractor, second changed to the foundation pile, the inboard haulage rope extended along inboard guide pulley group, and outside haulage rope extended along outside guide pulley group, pull and move the seat and be connected with the haulage rope to pull through the haulage rope pulling and move the seat along rail movement on the haulage rope.

2. The bottom-spinning ferrous alloy smelting system of claim 1, wherein: still set up the pinhole respectively at the front end of pulling the seat and the rear end that moves, the pinhole with pull to move and articulate between the seat, the pinhole lies in and pulls the centre line that moves the seat to make the pinhole apart from inboard track and outside track distance the same, the pinhole is used for being connected with the haulage rope.

3. The bottom-spinning ferrous alloy smelting system of claim 1, wherein: still set up the atmoseal subassembly above the furnace body, the atmoseal subassembly set up in material loading mouth department, the atmoseal subassembly includes support frame, atmoseal cylinder, and the shrouding still sets up the slot on the lateral wall around the furnace body material loading mouth, and the support frame fixed frame is located the material loading mouth top, and on the cylinder base of atmoseal cylinder was fixed in the support frame, the piston end was connected shrouding, shrouding are pegged graft in the slot.

4. The bottom-spinning ferrous alloy smelting system of claim 1, wherein: the outer circumference of the turntable is also provided with an outer rolling ring which is an annular part and is fixed above the base, the diameter of an inner ring of the outer rolling ring is larger than that of an outer ring of the turntable, the inner wall of the outer rolling ring is provided with a plurality of outer limiting rollers, the outer limiting rollers are connected with the outer rolling ring through shafts, so that the outer limiting rollers vertically roll relative to the outer rolling ring, and the rolling surface of each outer limiting roller is in contact with the outer wall of the turntable.

5. The bottom-spinning ferrous alloy smelting system of claim 4, wherein: the inner circumference of the turntable is also provided with an inner rolling ring which is an annular part and is fixed above the base, the diameter of the outer ring of the inner rolling ring is smaller than that of the inner ring of the turntable, the outer wall of the inner rolling ring is provided with a plurality of inner limiting rollers, the inner limiting rollers are connected with the inner rolling ring through shafts, so that the inner limiting rollers vertically roll relative to the inner rolling ring, and the rolling surface of each inner limiting roller is in contact with the inner wall of the turntable.

6. The bottom-spinning ferrous alloy smelting system of claim 1, wherein: the side wall of the furnace body is a nonagon furnace body formed by connecting nine planes side by side.

7. The bottom-spinning ferrous alloy smelting system of claim 1, wherein: still set up top cooling body above the furnace body, top cooling body includes mounting bracket, supporting seat, electrode, holder, centre gripping drive, cooling blower, cooling tube, air distributor, on the mounting bracket was fixed in the relative both sides lateral wall of furnace body, the one end and the mounting bracket fixed connection of supporting seat, other end installation holder, holder are two parts that open and shut for hugging closely the electrode, on centre gripping driven one end was fixed in the mounting bracket, the other end was connected with the holder for the holder is tightened in the top, on cooling blower was fixed in outside frame, cooling blower was connected to the one end of cooling tube, air distributor was connected to the other end, air distributor sets up in the holder top, and air distributor's air outlet sets up downwards to the wind that makes air distributor blow off flows towards the furnace body is inside.

8. The bottom-spinning ferrous alloy smelting system of claim 7, wherein: the air distributor is a hollow circular ring and is positioned above the clamp holder, and a plurality of air outlets are formed in the lower end face of the hollow circular ring.

9. The bottom-spinning ferrous alloy smelting system of claim 1, wherein: the pulling and moving seat comprises a base and a plurality of side stand columns, the lower portion of the base is arranged on ground wheels matched with the inner side rails and the outer side rails, the side stand columns are arranged above the base, and a ladle is placed between the opposite side stand columns to achieve the convenient and quick installation of the ladle and the pulling and moving seat.

10. The bottom-spinning ferrous alloy smelting system of claim 1, wherein: the ladle includes the inclusion, hangs and moves the subassembly, leads to the oxygen subassembly, the inclusion is the barrel that open-top, bottom seal, hangs and moves the subassembly and sets up in inclusion outer wall both sides for be connected with the lifting device is supporting, set up the hole that supplies to lead to the oxygen subassembly installation bottom the inclusion, lead to the oxygen subassembly including leading to oxygen pipe, resistant firebrick installs in the downthehole of inclusion bottom, lead to the one end of oxygen pipe and pass resistant firebrick, with the inside intercommunication of inclusion, the other end is used for being connected with outside oxygen system.

Images