CN110453139B - Device and process method for spheroidizing molten iron by pressing-in method - Google Patents
Device and process method for spheroidizing molten iron by pressing-in method Download PDFInfo
- Publication number
- CN110453139B CN110453139B CN201910871337.2A CN201910871337A CN110453139B CN 110453139 B CN110453139 B CN 110453139B CN 201910871337 A CN201910871337 A CN 201910871337A CN 110453139 B CN110453139 B CN 110453139B
- Authority
- CN
- China
- Prior art keywords
- spheroidizing
- dipping
- molten iron
- rod assembly
- lifting mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
- C22C33/10—Making cast-iron alloys including procedures for adding magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a device and a process method for spheroidizing molten iron by an indentation method, wherein the device comprises a dipping rod assembly, the dipping rod assembly comprises a core rod, a dipping cage fixedly connected to the lower end of the core rod and a sleeve fixedly connected to the upper end of the core rod, the lower end of the dipping cage is opened and is internally provided with a spheroidizing agent; the device also comprises a dipping rod assembly, a lifting mechanism and a rotating mechanism, and the process method comprises the following steps: (1) the lifting mechanism drives the dipping cage of the dipping rod component to be quickly pressed into a ladle of a spheroidizing station for spheroidizing; (2) after the spheroidization is finished, the lifting mechanism drives the dip rod assembly to lift the foundry ladle away from the spheroidization station; (3) the rotating mechanism drives the dipping rod assembly and the lifting mechanism to rotate to the next spheroidizing station; the steps are repeated in such a circulating way, and the spheroidizing treatment of a plurality of spheroidizing stations is realized; the technical scheme provided by the invention realizes the automatic operation control of the spheroidization of a plurality of spheroidization stations, and has the advantages of high spheroidization speed, high efficiency and high magnesium absorption rate.
Description
Technical Field
The invention relates to the technical field of molten iron spheroidization in the metallurgy and casting industries, in particular to a device and a process method for spheroidizing molten iron by an indentation method.
Background
Spheroidizing is a process for obtaining spheroidal graphite by treating cast iron liquid, so that spheroidal graphite cast iron with better mechanical property is obtained. At present, the prior spheroidizing process mainly comprises four methods, one method is a pouring method, magnesium alloy or other rare earth alloy spheroidizing agents are put at the bottom of a spheroidizing bag, and then the spheroidizing treatment is carried out by adopting a method of pouring molten iron, so that the consumption is high, and the controllability is low; the second is a wire feeding method, the magnesium alloy nodulizer is wrapped into a wire shape and added into the molten iron by a wire feeding device, and the wire feeding device has high consumption, low molten iron purity and low desulfurization degree; the third method is a ladle-to-ladle method, wherein a magnesium ingot or a magnesium alloy nodulizer is added to the bottom of a nodulizing ladle, and then the nodulizing ladle is turned over to contact molten iron with the nodulizer, so that the method has the disadvantages of complex operation and high risk coefficient; the fourth method is a magnesium spraying method, which uses gas as carrier to spray and blow passivated magnesium particles into molten iron, and the method has the advantages of fast molten iron temperature reduction, low magnesium absorption rate, high equipment failure rate, short service life and high production cost.
Disclosure of Invention
The invention aims to provide a dip rod component, a device and a process method for spheroidizing molten iron by a press-in method, and aims to solve the problems of high equipment failure rate, short service life, high production cost, complex process operation, low automation degree, high risk coefficient, high consumption of a spheroidizing agent and low absorption rate of the conventional molten iron spheroidizing device and process method.
In order to achieve the purpose, the invention provides a dipping rod assembly for spheroidizing molten iron by a press-in method, which is used for spheroidizing casting.
In order to achieve the purpose, the invention also provides a device for spheroidizing molten iron by a press-in method, which is used for spheroidizing cast iron and comprises the dipping rod assembly, a lifting mechanism and a rotating mechanism, wherein the lifting mechanism comprises a vertical mounting plate, a rotating shaft arranged on the vertical mounting plate and a lifting driving motor in driving connection with the rotating shaft, a driving sprocket is arranged on the rotating shaft, a driven sprocket is arranged below the driving sprocket on the vertical mounting plate, the driving sprocket is connected with the driven sprocket through a chain, the chain is connected with the dipping rod assembly through a fixing block, and the lifting mechanism is lifted to drive the dipping rod assembly to automatically lift; rotary mechanism includes the rotation gear wheel, with gear wheel mesh's rotatory pinion, with the leading wheel of rotation gear wheel butt and with the rotation driving motor that the rotation pinion drive is connected, rotation gear wheel up end is equipped with the mounting bracket, elevating system install in on the mounting bracket, rotary mechanism is rotatory in order to drive dip rod subassembly and elevating system rotate to a plurality of balling stations.
Preferably, the device for spheroidizing molten iron by the press-in method further comprises a dust removal device, the dust removal device comprises a bag-type dust collector and a dust cover, the bag-type dust collector is covered on the dust cover and is in through connection with the dust cover, and the dust removal device is covered above the dipping rod assembly, the lifting mechanism and the rotating mechanism.
Preferably, the apparatus for spheroidizing molten iron by press-in method further comprises a PLC control room, in which a controller is installed, and the controller is electrically connected to the rotation driving motor and the lifting driving motor to control the rotation angle of the rotation mechanism and the lifting position of the lifting mechanism.
In order to achieve the above object, the present invention further provides a process for spheroidizing molten iron by press-in method using the above apparatus for spheroidizing molten iron by press-in method, comprising the steps of:
the lifting mechanism drives the dipping cage of the dipping rod assembly to be quickly pressed into a ladle of a spheroidizing station, and molten iron enters from the bottom of the dipping cage, contacts and reacts with a spheroidizing agent placed in the accommodating space of the dipping cage, so as to be spheroidized;
after the spheroidization is finished, the lifting mechanism drives the dip rod assembly to lift the foundry ladle away from the spheroidization station;
the rotating mechanism drives the dipping rod assembly and the lifting mechanism to rotate to the next spheroidizing station;
the lifting mechanism drives the dipping cage of the dipping rod assembly to be quickly pressed into a ladle at the next spheroidizing station to complete spheroidizing treatment, the lifting mechanism drives the dipping rod assembly to lift the ladle away from the spheroidizing station, and the rotating mechanism drives the dipping rod assembly and the lifting mechanism to rotate to the next spheroidizing station;
the process is repeated in such a circulating way, and the spheroidization of a plurality of spheroidization stations is realized.
Preferably, the spheroidizing stations are arranged to be 1-8.
Preferably, the nodulizer is a magnesium ingot, a magnesium slag or a magnesium alloy.
Preferably, the magnesium content of the magnesium ingot, the magnesium slag or the magnesium alloy is 90-99%.
Preferably, the pressing speed of the lifting mechanism for driving the dipping cage of the dipping rod assembly to be quickly pressed into the ladle of a spheroidizing station is 0.4-2.0 m/s.
Preferably, a molten iron splashing space is reserved on the molten iron liquid level of the ladle.
According to the technical scheme provided by the invention, the dipping rod assembly for spheroidizing molten iron by the press-in method comprises a core rod, a dipping cage fixedly connected to the lower end of the core rod and a sleeve fixedly connected to the upper end of the core rod, wherein the lower end of the dipping cage is provided with an opening to form an accommodating space for placing a spheroidizing agent, the surfaces of the core rod and the dipping cage are both coated with a refractory layer, and a plurality of exhaust holes penetrating through the dipping cage are formed in the refractory layer on the surface of the dipping cage. The dipping rod assembly is driven by external force to quickly press the nodulizer placed in the accommodating space into the ladle, molten iron enters from the bottom of the dipping cage to contact and react with the nodulizer, the nodulizer is vaporized into steam and absorbed by the molten iron, so that nodulizing is carried out, meanwhile, a small amount of nodulizer steam is discharged from the exhaust hole, the nodulizer steam discharged from the exhaust hole also plays a role in stirring the molten iron, the nodulizing of the molten iron can be uniform, and the nodulizing quality of the molten iron is improved.
The working principle of the device for spheroidizing the molten iron by the pressing-in method provided by the invention is as follows: the dipping rod assembly is driven by the lifting mechanism to quickly press the nodulizer placed in the accommodating space into a ladle of a nodulizing station, molten iron enters from the bottom of the dipping cage, contacts and reacts with the nodulizer, the nodulizer is vaporized into steam which is absorbed by the molten iron, and the nodulizer steam is discharged from the exhaust hole so as to perform nodulizing treatment, and meanwhile, a small amount of nodulizer steam is discharged from the exhaust hole; after the spheroidization is finished, the lifting mechanism drives the dipping rod assembly to lift the ladle away from the spheroidization station, the rotating mechanism drives the dipping rod assembly and the lifting mechanism to rotate to another spheroidization station, the dipping rod assembly rapidly presses a spheroidizing agent placed in the accommodating space into the ladle at the spheroidization station under the driving of the lifting mechanism, molten iron enters from the bottom of the dipping cage, contacts and reacts with the spheroidizing agent, the spheroidizing agent is vaporized into steam which is absorbed by the molten iron, and the spheroidizing agent steam is discharged from the exhaust hole so as to carry out the spheroidization, and meanwhile, a small amount of spheroidizing agent steam is discharged from the exhaust hole; after the spheroidization is finished, the lifting mechanism drives the dip rod assembly to lift the ladle away from the spheroidization station, and the rotating mechanism drives the dip rod assembly and the lifting mechanism to rotate to another spheroidization station; repeating the steps, and realizing the spheroidization of a plurality of spheroidization stations.
The invention has the beneficial effects that:
(1) the invention provides a dipping rod component for spheroidizing molten iron by an indentation method, which has the advantages that a spheroidizing agent placed in an accommodating space is quickly pressed into the molten iron, the spheroidizing speed is high, the spheroidizing process is stable, the spheroidizing agent is fully utilized, the using amount of the spheroidizing agent can be controlled according to the required amount of the spheroidizing agent, and the production cost is favorably reduced; the structure is simple, the disassembly and the assembly are convenient, the operation is safer, and the use is simpler; the structure has no blocking phenomenon, long service life and low use cost;
(2) the invention also provides a device for spheroidizing the molten iron by the pressing-in method, which has the advantages of high spheroidizing speed, high efficiency, long service life and low use cost, and can realize the automatic operation control of the spheroidizing treatment of a plurality of spheroidizing stations; the device is simple in structure, convenient and safe to operate, simple to use, low in failure rate, low in danger coefficient and high in safety;
(3) the invention also provides a process method for spheroidizing the molten iron by the pressing-in method, the process method can realize automatic operation control of spheroidizing treatment of a plurality of spheroidizing stations, and has the advantages of simple process operation, low risk coefficient, high spheroidizing speed, high efficiency, 10-30 s/time of spheroidizing time, high magnesium absorption rate and low cost, and the magnesium absorption rate can reach 50-75%.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view showing an embodiment of a dipping rod assembly for press-in spheroidizing of molten iron according to the present invention;
FIG. 2 is a schematic view of the vent hole of FIG. 1 being a circular hole;
FIG. 3 is a schematic view of the exhaust hole of FIG. 1 being a kidney-shaped hole;
fig. 4 is a schematic view illustrating an embodiment of an apparatus for spheroidizing molten iron by press-in method according to the present invention;
fig. 5 is a top view of the rotating bull gear, the rotating pinion gear, and the guide wheel of the rotating mechanism of fig. 4.
The reference numbers illustrate: 1-a dipping rod component, 11-a core rod, 12-a dipping cage, 13-a sleeve, 14-a spheroidizing ladle cover, 15-a containing space, 16-a fire-resistant layer, 17-an exhaust hole, 18-a bolt, 19-a lock pin, 2-a lifting mechanism, 21-a vertical mounting plate, 22-a rotating shaft, 23-a lifting driving motor, 24-a driving chain wheel, 25-a driven chain wheel, 26-a chain, 27-a fixed block, 3-a rotating mechanism, 31-a rotating big gear, 32-a rotating small gear, 33-a rotating driving motor, 34-a guide wheel, 35-a mounting frame, 4-a dust removal device, 41-a dust cover, 42-a bag dust remover, 5-a PLC control room, 51-a controller and 6-a foundry ladle.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The invention provides a dip rod component for pressing-in method spheroidizing molten iron, which is used for spheroidizing casting, and figures 1 to 3 show an embodiment of the dip rod component for pressing-in method spheroidizing molten iron.
Referring to fig. 1, the dip rod assembly for press-in spheroidization of molten iron is used for spheroidization in casting, the dip rod assembly 1 includes a core rod 11, a dip cage 12 fixedly connected to the lower end of the core rod 11, and a sleeve 13 fixedly connected to the upper end of the core rod 11, a spheroidizing ladle cover 14 is detachably connected to the sleeve 13, the lower end of the dip cage 12 is open to form a containing space 15 for placing a spheroidizing agent, the surfaces of the core rod 11 and the dip cage 12 are both coated with a refractory layer 16, and a plurality of exhaust holes 17 penetrating through the dip cage 12 are formed in the refractory layer 16 on the surface of the dip cage 12.
In the technical scheme provided by the invention, the dipping rod assembly 1 for spheroidizing molten iron by the press-in method comprises a core rod 11, a dipping cage 12 fixedly connected to the lower end of the core rod 11 and a sleeve 13 fixedly connected to the upper end of the core rod 11, wherein the lower end of the dipping cage 12 is opened to form an accommodating space 15 for placing a spheroidizing agent, the surfaces of the core rod 11 and the dipping cage 12 are both coated with a refractory layer 16, and a plurality of exhaust holes 17 penetrating through the dipping cage 12 are formed in the refractory layer 16 on the surface of the dipping cage 12. The dipping rod assembly 1 is driven by external force to quickly press the nodulizer placed in the accommodating space 15 into the ladle 6, molten iron enters from the bottom of the dipping cage 12 to contact and react with the nodulizer, the nodulizer is vaporized into steam and absorbed by the molten iron, so that nodulizing is carried out, meanwhile, a small amount of vapor of the nodulizer is discharged from the exhaust hole 17, and the vapor of the nodulizer discharged from the exhaust hole 17 also plays a role in stirring the molten iron, so that the nodulizing of the molten iron is uniform, and the nodulizing quality of the molten iron is improved.
The shape of the soaking cage 12 can be set in various ways, in the embodiment, the soaking cage 12 is a hollow columnar structure, and the diameter of the inner cavity of the soaking cage 12 is 100-400 mm.
In this embodiment, referring to fig. 1, the nodulizer is bound or hung in the accommodating space 15 by steel wires. The arrangement is suitable for placing nodulizers with various specifications and shapes, and the nodulizers can be completely contained in the containing space 15 and can also be exposed out of the containing space 15, so that the placing operation of the nodulizers is more flexible, and the use is more convenient.
In this embodiment, referring to fig. 2 and 3, the exhaust holes 17 are circular holes or kidney-shaped holes and are uniformly distributed along the surface of the refractory layer 16. Specifically, the exhaust holes 17 can be round holes, 1-4 rows are arranged along the axial direction of the soaking cage 12, 2-8 exhaust holes are uniformly distributed in each row along the circumferential direction, and the exhaust holes 17 in two adjacent rows are arranged in a staggered manner; the exhaust holes 17 can also be waist-shaped holes and are uniformly distributed for 2-8 along the axial direction of the soaking cage 12. So set up, be convenient for control balling speed according to balling process's needs.
In this embodiment, referring to fig. 1 to 3, the spheroidizing cover 14 is detachably connected to the sleeve 13. The spheroidizing ladle cover 14 can prevent spheroidizing agent steam from overflowing and preserve heat, and the spheroidizing ladle cover 14 is detachably connected with the sleeve 13, so that the installation, the disassembly and the replacement of the dipping rod assembly 1 are facilitated.
In this embodiment, referring to fig. 1 to 3, a connecting rod is disposed on a lower surface of the spheroidizing ladle cover 14 in a downward protruding manner, a first mounting hole is formed through a side surface of the connecting rod, a second mounting hole is formed through a side wall of the sleeve 13, and the sleeve 13 and the connecting rod are connected by a plug 18 inserted through the first mounting hole and the second mounting hole.
In this embodiment, referring to fig. 1 to 3, one end of the latch 18 is provided with a handle, and the other end is provided with a lock hole, and a lock pin 19 can be inserted into the lock hole to lock the latch 18. In particular, the locking pin 19 may be made of steel wire.
In this embodiment, the refractory layer 16 is formed by casting a composite material containing silicon oxide, silicate, quartz stone, etc. as main components, and has excellent refractoriness, acid resistance, alkali resistance, hydration resistance, and oxidation resistance.
In order to achieve the above objects, the present invention further provides an apparatus for spheroidizing molten iron by an injection method, which is used for spheroidizing in casting, and fig. 4 and 5 illustrate an embodiment of the apparatus for spheroidizing molten iron by an injection method according to the present invention.
Referring to fig. 4 and 5, the apparatus for spheroidizing molten iron by press-in method includes the dipping rod assembly 1, and further includes a lifting mechanism 2 and a rotating mechanism 3, the lifting mechanism 2 includes a vertical mounting plate 21, a rotating shaft 22 mounted on the vertical mounting plate 21, and a lifting driving motor 23 in driving connection with the rotating shaft 22, a driving sprocket 24 is mounted on the rotating shaft 22, a driven sprocket 25 is arranged below the driving sprocket 24 on the vertical mounting plate 21, the driving sprocket 24 is connected with the driven sprocket 25 through a chain 26, the chain 26 is connected with the dipping rod assembly 1 through a fixing block 27, and the lifting mechanism 2 is lifted to drive the dipping rod assembly 1 to automatically lift; rotary mechanism 3 includes rotatory gear wheel 31, with gear engagement's rotatory pinion 32, with the leading wheel 34 of rotatory gear wheel 31 butt and with rotatory pinion 32 drive connection's rotation driving motor 33, rotatory gear wheel 31 up end is equipped with mounting bracket 35, elevating system 2 install in on the mounting bracket 35, rotary mechanism 3 is rotatory in order to drive dip rod subassembly 1 and elevating system 2 rotate to a plurality of balling stations.
The utility model provides an among the technical scheme, through the device of method balling molten iron of impressing, including soaking pole subassembly 1, elevating system 2 and rotary mechanism 3, soak pole subassembly 1 and include core bar 11, fixed connection soak cage 12 and the sleeve 13 of fixed connection in the core bar 11 upper end in core bar 11 lower extreme, can dismantle on the sleeve 13 and be connected with balling be built by contract 14, soak 12 lower extreme openings of cage in order to form the accommodation space 15 that is used for placing the nodulizer, the surface of core bar 11 and soaking cage 12 all wraps the flame retardant coating 16, it runs through a plurality of exhaust holes 17 of soaking cage 12 to set up on the flame retardant coating 16 on 12 surfaces of soaking cage, soak pole subassembly 1 whole fixed connection in elevating system 2; the dipping rod assembly 1 is driven by the lifting mechanism 2 to directly press the nodulizer placed in the accommodating space 15 into the foundry ladle 6 or leave the foundry ladle 6, molten iron enters from the bottom of the dipping cage 12 to contact and react with the nodulizer, the nodulizer is vaporized into steam and absorbed by the molten iron, so as to be subjected to nodulizing treatment, simultaneously, a small amount of nodulizer steam is discharged from the exhaust hole 17, the nodulizer steam discharged from the exhaust hole 17 also plays a role in stirring the molten iron, so that the molten iron nodulizing treatment is uniform, the nodulizing quality of the molten iron is improved, the lifting mechanism 2 is lifted to drive the dipping rod assembly 1 to automatically lift, the lifting mechanism 2 is integrally fixed on the rotating mechanism 3, the rotating mechanism 3 rotates to drive the dipping rod assembly 1 and the lifting mechanism 2 to rotate to a plurality of nodulizing stations, and the automatic operation control of the nodulizing treatment of the plurality of nodulizing stations is realized, the spheroidization speed is high and the efficiency is high.
In this embodiment, referring to fig. 4, the apparatus for spheroidizing molten iron by press-in method further includes a dust removing device 4, the dust removing device 4 includes a dust cover 41 covered on the dust cover, and a bag-type dust remover 42 connected to the dust cover 41 in a penetrating manner, and the dust removing device 4 is covered on the dip rod assembly 1, the lifting mechanism 2, and the rotating mechanism 3.
The bag-type dust collector mainly comprises four systems, namely a dust cleaning system, a control system, an inspection system and a safety protection system (comprising a boiler ignition oil feeding system, a pre-dust-coating system for feeding oil during low-load operation and stable combustion and a protection filter bag, wherein when the smoke temperature exceeds a set value, an emergency water spraying system is started to reduce the smoke temperature and protect the filter bag, the dust cleaning system is a digestive organ of a bag-type dust collector, and the operation effect of the bag-type dust collector depends on the dust cleaning mechanism and the control system thereof to a great extent.
The internal structure of the bag-type dust collector mainly comprises an upper box body, a middle box body, a lower box body (ash bucket), an ash cleaning system, an ash discharging mechanism and the like.
The working principle of the bag-type dust collector is as follows: the bag-type dust collector mainly utilizes filter materials (fabrics or felts) to filter dust-containing gas so as to achieve the purpose of dust removal. The filtering process is divided into 2 stages, firstly, the dust-containing gas passes through a clean filter material, and at the moment, the filtering effect is mainly the retention of filter material fibers. Secondly, when the retained dust is increased continuously, a part of the dust is embedded into the filter material, and a part of the dust covers the surface of the filter material to form a dust layer, and at the moment, the dust layer is mainly used for filtering dust-containing gas. After the dust-containing gas enters the dust collector, the air velocity is reduced, larger particles in the smoke dust are directly precipitated to the dust hopper, the rest dust particles pass through the filter bag from outside to inside for filtration, the clean smoke is discharged from the inner side of the filter bag, and the fly ash is blocked at the outer side of the filter bag. The pressure difference between the inner side and the outer side of the dust removal filter bag is gradually increased along with the continuous accumulation of the accumulated dust, when the pressure difference reaches a set value, the pulse valve diaphragm is automatically opened, pulse air is sprayed into the filter bag through the nozzle, and the filter bag expands, so that the dust attached to the filter bag falls off, and the dust removal effect is achieved.
In this embodiment, referring to fig. 4, the apparatus for spheroidizing molten iron by press-in method further includes a PLC control chamber 5, a controller 51 is installed in the PLC control chamber 5, the controller 51 is electrically connected to the rotation driving motor 33 and the lifting driving motor 23, the rotation driving motor 33 and the lifting driving motor 23 are provided with an encoder and a code wheel, and the rotation driving motor 33 and the lifting driving motor 23 are controlled by software setting of the controller 51 to control the rotation angle of the rotation mechanism 3 and the lifting position of the lifting mechanism 2.
The working principle of the device for spheroidizing the molten iron by the pressing-in method provided by the invention is as follows: referring to fig. 4 and 5, the dipping rod assembly 1 is driven by the lifting mechanism 2 to rapidly press the nodulizer placed in the accommodating space 15 into the ladle 6 of a spheroidizing station, molten iron enters from the bottom of the dipping cage 12 and contacts and reacts with the nodulizer, the nodulizer is vaporized into steam and absorbed by the molten iron, the nodulizer steam is discharged from the exhaust hole 17, and thus spheroidizing is performed, and meanwhile, a small amount of nodulizer steam is discharged from the exhaust hole 17; after the spheroidization is finished, the lifting mechanism 2 drives the dipping rod assembly 1 to lift the foundry ladle 6 which leaves the spheroidization station, the rotating mechanism 3 drives the dipping rod assembly 1 and the lifting mechanism 2 to rotate to another spheroidization station, the dipping rod assembly 1 rapidly presses a spheroidizing agent placed in the accommodating space 15 into the foundry ladle 6 of the spheroidization station under the drive of the lifting mechanism 2, the molten iron enters from the bottom of the dipping cage 12, contacts and reacts with the spheroidizing agent, the spheroidizing agent is vaporized into steam which is absorbed by the molten iron, and the spheroidizing agent steam is discharged from the exhaust hole 17 so as to carry out the spheroidization, and meanwhile, a small amount of spheroidizing agent steam is discharged from the exhaust hole 17; after the spheroidization is finished, the lifting mechanism 2 drives the dipping rod assembly 1 to lift the foundry ladle 6 away from the spheroidization station, and the rotating mechanism 3 drives the dipping rod assembly 1 and the lifting mechanism 2 to rotate to another spheroidization station; repeating the steps, and realizing the spheroidization of a plurality of spheroidization stations.
In order to achieve the above object, the present invention further provides a process for spheroidizing molten iron by press-in method using the above apparatus for spheroidizing molten iron by press-in method, referring to fig. 4, including the following steps:
(1) the lifting mechanism 2 drives the dipping cage 12 of the dipping rod assembly 1 to be quickly pressed into a ladle 6 of a spheroidizing station, and molten iron enters from the bottom of the dipping cage 12 and contacts and reacts with a spheroidizing agent placed in the accommodating space 15 of the dipping cage 12 to be spheroidized;
(2) after the spheroidization is finished, the lifting mechanism 2 drives the dip rod assembly 1 to lift the foundry ladle 6 away from the spheroidization station;
(3) the rotating mechanism 3 drives the dipping rod assembly 1 and the lifting mechanism 2 to rotate to the next spheroidizing station;
(4) the lifting mechanism 2 drives the dipping cage 12 of the dipping rod assembly 1 to be quickly pressed into the ladle 6 of the next spheroidizing station to complete spheroidizing treatment, the lifting mechanism 2 drives the dipping rod assembly 1 to be lifted away from the ladle 6 of the spheroidizing station, and the rotating mechanism 3 drives the dipping rod assembly 1 and the lifting mechanism 2 to rotate to the next spheroidizing station;
(5) the process is repeated in such a circulating way, and the spheroidization of a plurality of spheroidization stations is realized.
In this embodiment, balling station sets up to 1~ 8.
In this embodiment, the nodulizer is a magnesium ingot, magnesium slag, or magnesium alloy.
In this embodiment, the magnesium content of the magnesium ingot, the magnesium slag or the magnesium alloy is 90-99%.
In the embodiment, the speed of pressing the dipping cage 12 of the dipping rod assembly 1 into the ladle 6 of a spheroidizing station quickly by the lifting mechanism 2 is 0.4-2.0 m/s.
In this embodiment, a molten iron splashing space is reserved on the molten iron liquid level of the ladle 6.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides an apparatus of method balling molten iron that impresses for cast balling is used for, its characterized in that: comprises a dipping rod assembly, the dipping rod assembly comprises a core rod, a dipping cage fixedly connected with the lower end of the core rod and a sleeve fixedly connected with the upper end of the core rod, the sleeve is detachably connected with a spheroidizing ladle cover, the lower end of the soaking cage is provided with an opening to form an accommodating space for placing a spheroidizing agent, the surfaces of the core rod and the soaking cage are both coated with refractory layers, the refractory layers on the surface of the soaking cage are provided with a plurality of exhaust holes which penetrate through the soaking cage, the device also comprises a lifting mechanism and a rotating mechanism, the lifting mechanism comprises a vertical mounting plate, a rotating shaft and a lifting driving motor, the rotating shaft is mounted on the vertical mounting plate, the lifting driving motor is in driving connection with the rotating shaft, a driving chain wheel is mounted on the rotating shaft, a driven chain wheel is arranged below the driving chain wheel on the vertical mounting plate, the driving chain wheel is connected with the driven chain wheel through a chain, the chain is connected with the dip rod assembly through a fixing block, and the lifting mechanism is lifted to drive the dip rod assembly to automatically lift; rotary mechanism includes the rotation gear wheel, with gear wheel mesh's rotatory pinion, with the leading wheel of rotation gear wheel butt and with the rotation driving motor that the rotation pinion drive is connected, rotation gear wheel up end is equipped with the mounting bracket, elevating system install in on the mounting bracket, rotary mechanism is rotatory in order to drive dip rod subassembly and elevating system rotate to a plurality of balling stations.
2. The apparatus for spheroidizing molten iron by press-in method according to claim 1, wherein: still include dust collector, dust collector locates the dust cover including the cover to and the sack cleaner of dust cover through connection, dust collector cover is located dip rod subassembly, elevating system and rotary mechanism's top.
3. The apparatus for spheroidizing molten iron by press-in method according to claim 1, wherein: the PLC control room is internally provided with a controller, and the controller is electrically connected with the rotary driving motor and the lifting driving motor so as to control the rotation angle of the rotating mechanism and the lifting position of the lifting mechanism.
4. A process for spheroidizing molten iron by press-in method using the apparatus for spheroidizing molten iron by press-in method according to claim 1, wherein: the method comprises the following steps:
the lifting mechanism drives the dipping cage of the dipping rod assembly to be quickly pressed into a ladle of a spheroidizing station, and molten iron enters from the bottom of the dipping cage, contacts and reacts with a spheroidizing agent placed in the accommodating space of the dipping cage, so as to be spheroidized;
after the spheroidization is finished, the lifting mechanism drives the dip rod assembly to lift the foundry ladle away from the spheroidization station;
the rotating mechanism drives the dipping rod assembly and the lifting mechanism to rotate to the next spheroidizing station;
the lifting mechanism drives the dipping cage of the dipping rod assembly to be quickly pressed into a ladle at the next spheroidizing station to complete spheroidizing treatment, the lifting mechanism drives the dipping rod assembly to lift the ladle away from the spheroidizing station, and the rotating mechanism drives the dipping rod assembly and the lifting mechanism to rotate to the next spheroidizing station;
the process is repeated in such a circulating way, and the spheroidization of a plurality of spheroidization stations is realized.
5. The process method for spheroidizing the molten iron by the pressing method according to claim 4, wherein the process method comprises the following steps: the spheroidization station sets up to 1~ 8.
6. The process method for spheroidizing the molten iron by the pressing method according to claim 4, wherein the process method comprises the following steps: the nodulizer is magnesium ingot, magnesium slag or magnesium alloy.
7. The process method for spheroidizing the molten iron by the pressing method according to claim 6, wherein the process method comprises the following steps: the magnesium content of the magnesium ingot, the magnesium slag or the magnesium alloy is 90-99%.
8. The process method for spheroidizing the molten iron by the pressing method according to claim 4, wherein the process method comprises the following steps: the lifting mechanism drives the dipping cage of the dipping rod assembly to be quickly pressed into the ladle of a spheroidizing station at a pressing speed of 0.4-2.0 m/s.
9. The process method for spheroidizing the molten iron by the pressing method according to claim 4, wherein the process method comprises the following steps: and a molten iron splashing space is reserved on the molten iron liquid level of the ladle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871337.2A CN110453139B (en) | 2019-09-16 | 2019-09-16 | Device and process method for spheroidizing molten iron by pressing-in method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910871337.2A CN110453139B (en) | 2019-09-16 | 2019-09-16 | Device and process method for spheroidizing molten iron by pressing-in method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110453139A CN110453139A (en) | 2019-11-15 |
| CN110453139B true CN110453139B (en) | 2021-11-30 |
Family
ID=68492008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910871337.2A Active CN110453139B (en) | 2019-09-16 | 2019-09-16 | Device and process method for spheroidizing molten iron by pressing-in method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110453139B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111304398B (en) * | 2019-12-13 | 2021-09-07 | 河北翼辰实业集团股份有限公司 | Cast iron spheroidizing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202555783U (en) * | 2012-05-07 | 2012-11-28 | 龙南龙钇重稀土科技股份有限公司 | Casting nodulizer adding device |
| CN110438283A (en) * | 2019-09-16 | 2019-11-12 | 黄石新兴管业有限公司 | A kind of leaching bar assembly of plunging spheroidization molten iron |
| CN210620859U (en) * | 2019-09-16 | 2020-05-26 | 黄石新兴管业有限公司 | Dipping rod assembly for spheroidizing molten iron by press-in method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100513586C (en) * | 2007-07-04 | 2009-07-15 | 芜湖新兴铸管有限责任公司 | Process and device for producing spheroidal graphite cast iron tube |
-
2019
- 2019-09-16 CN CN201910871337.2A patent/CN110453139B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202555783U (en) * | 2012-05-07 | 2012-11-28 | 龙南龙钇重稀土科技股份有限公司 | Casting nodulizer adding device |
| CN110438283A (en) * | 2019-09-16 | 2019-11-12 | 黄石新兴管业有限公司 | A kind of leaching bar assembly of plunging spheroidization molten iron |
| CN210620859U (en) * | 2019-09-16 | 2020-05-26 | 黄石新兴管业有限公司 | Dipping rod assembly for spheroidizing molten iron by press-in method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110453139A (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110453139B (en) | Device and process method for spheroidizing molten iron by pressing-in method | |
| KR101633598B1 (en) | Device and method for cleaning diesel particulate filters | |
| US4039482A (en) | Method of coating and impregnating catalyst support members | |
| US6901989B1 (en) | Removing lost foam pattern coating residue from a casting | |
| CN101692382B (en) | Hydrogen removing method for radiator for transformer | |
| CN213078021U (en) | Automatic desulfurization and denitrification treatment device for flue gas | |
| CN107262066A (en) | Preparation method for the perlite adsorbent of heavy-metal ion removal | |
| CN101496975A (en) | Method for cleaning filtering piece or filtering element stained with polyurethane | |
| CN108327066A (en) | Self-heating type pipe of cement pours mold | |
| CN110917848B (en) | Method for flue gas denitration by using rotary activated carbon denitrator | |
| CN210620858U (en) | Device for spheroidizing molten iron by pressing-in method | |
| CN210620859U (en) | Dipping rod assembly for spheroidizing molten iron by press-in method | |
| CN108588438A (en) | A kind of Metal Melting method and smelting furnace | |
| CN108525403B (en) | Paint mist dry type filtering module and purifying device applied by same | |
| CN109181786B (en) | Improved process for coke oven gas desulfurization | |
| CN100567514C (en) | A kind of passive granule alloy and preparation method thereof | |
| CN104704143B (en) | The method for plating metal is carried out to the part of automobile-use | |
| CN214182459U (en) | Waste gas active carbon adsorption device with temperature sensing and spraying system | |
| EP1060814A1 (en) | Removing lost foam pattern coating residue from a casting | |
| CN213375753U (en) | Flue gas treatment device for nickel alloy smelting production | |
| CN110438283A (en) | A kind of leaching bar assembly of plunging spheroidization molten iron | |
| CN1075975C (en) | Technology for producing filter element cup | |
| CN201006426Y (en) | Bucket lifting electrical heating charcoal reproduction furnace | |
| CN110732161A (en) | Oil removing and drying device for kinds of cylinder sleeve iron filings | |
| JP2005246106A (en) | Bio-deodorization apparatus and bio-deodorization method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |