CN202427936U

CN202427936U - Spheriodized ladle

Info

Publication number: CN202427936U
Application number: CN201120364406XU
Authority: CN
Inventors: 张�杰; 陈淦; 张务才; 李光民; 董兴; 许文青; 郑冬梅
Original assignee: SHANDONG HUIJIN CO Ltd
Current assignee: SHANDONG HUIJIN CO Ltd
Priority date: 2011-09-27
Filing date: 2011-09-27
Publication date: 2012-09-12
Anticipated expiration: 2021-09-27

Abstract

The utility model discloses a spheriodized ladle including a ladle body and a ladle cover. A chamber and a dam are arranged in the ladle body, a door frame is connected on the ladle body, hanging chains, guiding wheels, a funnel basin, and a flowing hole, the ladle body and the ladle cover are in a planar sealing through conical positioning, and a balance crane, arranged in the door frame, hoists the ladle cover and the whole ladle through the hanging chains and the door frame. The ladle cover is connected on the balance crane via the hanging chains and moves up and down in the door frame along the lifting of the balance crane by attaching to a suspension rod, thereby realizing the closing and opening of the ladle cover. During the iron melt spheroidization and the transportation of the spheriodized ladle provided, the ladle cover is always sealed on the ladle body, thus, the spheriodized ladle is free of metal sprinkle and photothermal radiometry, thereby reducing the heat loss and improving the safety and the working conditions. Certain pressure is generated in the ladle through the improvement of the sealing and the control of the depth of the funnel basin of the ladle cover and the diameter of the flowing hole to prevent magnesium light and magnesium steam from overflowing from the flowing hole and the sealing surface, thereby improving the absorption rate of spheriodized elements, reducing the oxygenation loss, improving the quality of iron melt, and reducing the production cost.

Description

A kind of Spheroidizing Treatment Tundish

Technical field

The utility model relate in a kind of foundry technology process produce that spheroidal graphite cast-iron uses add a cover spheroidising bag, specifically a kind of Spheroidizing Treatment Tundish.

Background technology

The spheroidising bag is that Foundry Works carries out spheroidal graphite cast-iron and is used to accept the ladle that furnace cupola or electric furnace iron liquid carry out spheroidising when producing in the stokehold, is a kind of ladle that possesses spheroidising, storage, transports or water pouring functions.Spheroidising is that magnesium or the alloy material that contains magnesium are added in the reative cell of nodularization bag, covers inovulant or other alloy material it on, pours the technology that high-temperature fusion iron liquid carries out spheroidizing reacion acquisition molten ductile iron.In the course of reaction, because the outburst of the fierceness of magnesium is easy to generate magnesium light and flue gas.Used spheriodization process thereof pours method, hello a silk method, lid bag method, subcontracts method (GF bag), pressure of magnesium adding method, the interior facture of type etc. at present; The absorptivity of lid bag method magnesium is higher; Optical heat radiation is little; Cooling is slow, good operational environment, and the casting circle generally believes that it is reasonable a kind of in the existing several kinds of spheriodization process thereofs covering the bag method.Because of its energy-saving and environmental protection, practicality; General promotion and application have been obtained abroad; (according to the american foundrymen's societry melting committee statistics in 1989,77 Foundry Works have half factory to use the lid bag approximately, and in May, 1997, the delegation that goes to U.S.A. of China Weapon Industry Corporation was that master's Foundry Works investigate to seven families to produce automobile magnesium iron spare in the U.S.; Not only used the lid bag except that a tame spheroidising in seven family belongings but also with subcontracting (GF bag), bag methods are covered in all the other whole employings of six families.) at present domesticly also have some factories to use the more than ten years; Obtained good effect, adhered to using and the good of usefulness still is several families, applied although the positive appealing of expert, scholar on these several years casting circles will be covered bag method spheroidizing process; But the respondent is still few in number; Trace it to its cause, the problem of use habit is wherein arranged, but crucial this body structure of still lid bag still has the perfect place of further needs; To the sealing that designs and produces clad particularly of lid bag, go up and down and the mode that picks and places more loaded down with trivial details; Open to hang to hang with the nodularization bag like clad and separate, this has increased operational inconvenience undoubtedly and has prolonged the nodularization cycle, has influenced to cover the result of use of wrapping and apply.

Summary of the invention

It is a kind of simple in structure that the purpose of the utility model is to provide, and clad and inclusion go up and down freely, good airproof performance, clad are located with the inclusion tapering automatically, flexible and convenient operation, and the magnesium absorption rate height, optical heat radiation is little, the spheroidising bag that temperature drop is little.

For achieving the above object, the technical scheme that the utility model adopted is following:

A kind of Spheroidizing Treatment Tundish; The clad that cooperates with it that comprises inclusion and be positioned at its top; Be connected with door frame on the inclusion, described door frame comprises suspension rod that is articulated in the inclusion both sides and the crossbeam that is connected two suspension rod tops, is connected with the clad boom hoisting with the clad detachable on the clad; Clad boom hoisting top connects suspension ring, and the clad boom hoisting is provided with stopping means with the lid parlor.

Above-mentioned Spheroidizing Treatment Tundish, described clad boom hoisting is a balance crane, and it comprises the equalizer bar of being located in the door frame, and the equalizer bar detachable connects clad, and the equalizer bar upper end connects sliding hanger rod, and the sliding hanger rod upper end connects suspension ring.

Above-mentioned lid bag, described sliding hanger rod is sheathed in the crossbeam, and crossbeam is provided with the balance crane stopping means that puts in place.

Above-mentioned lid bag, described removably is provided with chaining for the clad both sides, and the upper end correspondence of chaining is mounted on the equalizer bar.

Above-mentioned lid bag also includes the directive wheel of being located at the clad both sides, and the wheel shaft of said directive wheel is fixed on the clad, and directive wheel installs and fixes the front-back that the position is attached to two suspension rods respectively.

Above-mentioned lid bag, the equalizer bar on the balance crane on fixing two chainings in the both sides, top of clad and the door frame flexibly connects.

Above-mentioned lid bag, the door frame crossbeam is provided with the guide-localization slideway, and the inclusion center of gravity overlaps on the slideway center line, and the sliding hanger rod of balance crane and door frame crossbeam are for being slidingly matched.

The operation principle and the beneficial effect of the utility model show:

The utility model mainly comprises inclusion and clad, and inclusion and clad cooperate to reach the purpose that inclusion is covered completely, and clad is connected with suspension ring and carries out spacing through stopping means; The lid bag is raised earlier, under the drive of stopping means, inclusion is mentioned then again, and lid wraps nodularization, transports, pours in the process; Suspension ring can hang on the rane trolley suspension hook all the time; Inclusion and clad disjunctor do not need secondary hook and lifting, and be safe and reliable.

Clad is provided with balancing pole and sliding hanger rod, and the balancing pole middle part connects suspension ring, the detachable connection clad in two ends, and the upper end of sliding hanger rod connects suspension ring, and is simple in structure easy for installation, and lid bag, good balance effect are carried in the balancing pole two ends.

The inclusion upper end is connected with crossbeam, and crossbeam can be used for the fixedly suspension rod of inclusion both sides on the one hand, and sliding hanger rod is set in the crossbeam on the other hand; As guide effect, simultaneously, when suspension ring are sling the lid bag; Suspension ring at first lift by crane sliding hanger rod, and sliding hanger rod drives balancing pole and clad rises, when rising to the limit; Balancing pole is stopped that by crossbeam this moment, crossbeam was sling, and sling thereby whole lid encapsulates.

Balancing pole is detachable the connection with clad, is the form that the utility model for convenience detach adopts chain to articulate, and installation and dismounting are fast simple, satisfies and covers bag different needs of each stage, and it is easier that the lid bag is used, and is easy to popularization.

Clad is provided with guider---and directive wheel, clad lifting and below are through the guider location accurately.

Inclusion and the shiny surface of clad contact-making surface for cooperating, good sealing effect when both close up, Spheroidizing Treatment Tundish is in the nodularization process; Make through the sealing transformation with to the control of the clad funnel basin degree of depth and discharge orifice diameter and to obtain certain pressure in the bag; Prevent that magnesium light, magnesium vapor from overflowing from discharge orifice and sealing surface, improved the absorptivity of nodularization element, reduced oxidization burning loss; Improve iron liquid quality, reduced production cost.Iron liquid is in transportation, and clad keeps sealing on inclusion, and no metal splashes and optical heat radiation, has reduced heat loss, has improved security, has improved working condition.

Because adopt the tapering location, directive wheel and slideway are directed, the clad polarization is good, good sealing effect.All adopt the resistance to deformation design, tapering " U " type groove is established in the inclusion upper edge, tamps refractory material in the groove, and thermal deformation resistant and ablation ability are strong, keeps sealing effective.

Description of drawings

Fig. 1 is a kind of self-align sealing nodularization lid pack arrangement sketch map of the utility model;

Fig. 2 is the utility model clad and signal of inclusion sealing state and the local amplification view of sealing surface;

Fig. 3 is the utility model clad discharge orifice and inclusion bag content cavity cross-sectional schematic;

Fig. 4 feeds in raw material, skims for the utility model spheroidising is forward and backward and pours into a mould the preceding view of iron liquid;

Fig. 5 accepts iron liquid for the utility model and carries out spheroidising and transhipment view;

Among the figure, 1, inclusion; 2, suspension rod; 3, directive wheel; 4, clad; 5, chaining; 6, equalizer bar; 7, crossbeam; 8, sliding hanger rod; 9, needle beam; 10, suspension ring; 11, limited block; 12, safety card; 13, reductor; 19, bag axle; 21, light thermal-insulation clad.

The specific embodiment

Come the invention is described in detail with the specific embodiment below:

Form by inclusion 1 and clad 4 and subsidiary body thereof like Fig. 1, the utility model shown in 3.

Inclusion 1 forms the bag content cavity by warding off refractory material in the steel shell, builds the spheroidizing reacion chamber in the bag content cavity, and the opposite is buffering or pretreatment chamber.The outside of inclusion 1 is provided with two bag axles 19 and connects two suspension rods 2 and reductor 13.Suspension rod 2 is formed door frame with crossbeam 7, and door frame to wrapping axle 19 transmission of drive force, makes the wrapped axle rotation of unsettled inclusion through reductor 13 when the lifting state, and completion is fed in raw material and toppled over the operation of iron liquid.

Like Fig. 1, shown in 2, tapering bag mouth is adopted in inclusion 1 upper edge, and clad 4 lower edges are the conical horn mouth, adds that clad 4 establishes on two suspension rods 2 that two directive wheels 3 are pasting inclusion with clad landing about in the of 4, and clad 4 is easy to centering and drops on the inclusion 1.Clad and inclusion sealing surface are machined surface, all adopt the resistance to deformation design, and tapering " U " type groove is established in the inclusion upper edge, tamps refractory material in the groove, and thermal deformation resistant and ablation ability are strong, keep sealing effective.

As shown in Figure 4, inclusion hangs over materials such as carrying out adding before the spheroidising nodulizer on the rane trolley suspension hook or spheroidising finishes to take off slag operation or iron liquid status sketch map is toppled in preparation for clad leaves.Suspension ring 10 hang with needle beam 9, sliding hanger rod 8, equalizer bar 6 Compositional balances, and the sliding hanger rod 8 of balance crane moves up and down in the slideway that crossbeam 7 and limited block 11 are formed, and two chainings 5 on the clad 4 are hung on the equalizer bar 6; The rane trolley suspension hook hangs in the suspension ring 10; Make equalizer bar 6 rise to apical position and be adjacent to crossbeam 7, clad separates with inclusion, exposes the operating space; This spatial altitude does not influence the inclusion rotation and topples over the operation of iron liquid, and balance crane is through door frame lifting inclusion.When using rane trolley, suspension ring 10 hang on the rane trolley suspension hook, do not add light thermal-insulation clad 21 when feeding in raw material and skimming operation, can cover light thermal-insulation clad 21 when toppling over the operation of iron liquid, reduce temperature drop and heat radiation.

Reinforced operation: two chainings 5 on the clad 4 are hung on the equalizer bar 6, and the rane trolley suspension hook hooks suspension ring 10 and rises, and balance crane drive clad rises to equalizer bar 6 together and contacts with crossbeam 7; Clad separates with inclusion; Expose reinforced operating space, continuing to rise makes inclusion built on stilts or workbench, drive speed reducer 13; Make inclusion 1 forward convenient reinforced angle to one inclination of spheroidizing reacion chamber; Nodulizer is dropped into the indoor tamping of spheroidizing reacion, cover inovulant or stalloy on it, in dykes and dams opposite buffering or pretreatment chamber, dose pretreating agent in the time of need carrying out pretreating process.Reinforced finishing, drive speed reducer 13 makes inclusion 1 be turned back to the upright position, is placed into ground or workbench; Lean on dead-weight balanced hanging to drop to clad with clad and contact with the inclusion sealing surface; Balance crane continues to drop to and can take off chaining 5, buckles well safety card 12, the lifting balance crane; Drive inclusion built on stilts or workbench such as Fig. 5 state and tap a blast furnace, accomplish reinforced operation to the location pending that taps a blast furnace.

As shown in Figure 5, for hanging at sealing state, the inclusion clad carries out nodularization, transfer operation sketch map on the rane trolley suspension hook.When using rane trolley, suspension ring 10 hang on the rane trolley suspension hook, nodularization, transport, pour into suspension ring and can hang over all the time on the rane trolley suspension hook, and security is higher.Use the fork truck spheroidising, two pallet fork forks of fork truck are below equalizer bar 6; The transhipment of use fork truck, needle beam 9 drops on the crossbeam 7, and two pallet fork forks of fork truck are below crossbeam 7, and it is Transshipment Permitted that door frame drives inclusion rising built on stilts certain distance.

Spheroidising: the Spheroidizing Treatment Tundish that adds honest material is preferably in the nodularization of tapping a blast furnace in 2 minutes.Package location is covered in adjustment; Make the funnel basin just in time facing to the iron flow; Iron liquid gets into the funnel basin, pours buffering or pretreatment chamber in the bag through the basin bottom part discharge orifice again, and the size of iron flow should be able to guarantee that iron liquid is kept certain height in the funnel basin seal discharge orifice fully and don't overflow the funnel basin.This depends on the size of discharge orifice diameter, can use computing formula: D=(2.34～2.52)

according to the casting engineering that torricelli theorem is released and confirm the discharge orifice diameter.In the formula: D-discharge orifice diameter (cm); A W-processing iron liquid weight! ㎏); T-iron liquid is through flowing hole time (s); Iron liquid height (cm) in h-funnel basin.D value by this formula calculates can be verified and revise in practice, to reach optimum efficiency.

Tap a blast furnace for furnace cupola, relatively stable because of tapping hole, can adjust the size of discharge orifice diameter according to practical experience.Tap a blast furnace for electric furnace; The speed of tapping a blast furnace is controlled easily, can easily make the speed of tapping a blast furnace and funnel basin discharge orifice go into iron speed and be complementary, and the best speed of tapping a blast furnace is that the interior liquid level of funnel basin is kept certain height; The end of tapping a blast furnace, the spheroidizing reacion time equals or lags behind iron liquid slightly through the flowing hole time.

Take off slag operation: spheroidizing reacion finishes, the whereabouts crane hook, and the balance crane that hangs on the suspension hook descends, and equalizer bar 6 drops on the clad 4, and chaining 5 is hung on the equalizer bar 6, and the suspension hook that hoists is sling clad, takes off slag operation.When skimming, clad is sling with equalizer bar simultaneously, and exposes the operating space between the inclusion, promptly skims covering under the situation, has reduced heat radiation, has improved environment and operating personnel's working condition.

The transhipment pouring operation: ends of skimming, can be directly Spheroidizing Treatment Tundish be hung the stokehold bag and cheat and connect the iron liquid level to pouring ladle and put, open safety card 12, drive speed reducer 13 is with iron liquid injection pouring ladle.After iron liquid all empties, get back to the stokehold feed location and feed in raw material, accomplish an operation cycle.

If pouring ladle connect the iron liquid level put with spheroidising not in same striding, then will cover bag and winch on the transport carriage or be placed on the ground with the fork truck transhipment, clad 4 fell and covered on inclusion 1 this moment; Arrival connects the iron liquid level and puts; To cover bag again and sling, light thermal-insulation clad 21 will be covered on inclusion 1, open safety card 12 like Fig. 4 state; Drive speed reducer 13 is injected pouring ladle with iron liquid.

Cast finishes, and spheroidising such as blanking time are longer, and clad and inclusion are placed at sealing state, and the bag content cavity still can keep higher temperature.Through test, 30 minutes at interval, temperature still was kermesinus from dropping to more than 1000 ℃ about 800 ℃ in the bag in the bag, can not need to scald again bag, directly used.

In spheroidising of iron liquid and transportation, clad keeps sealing on inclusion, and no metal splashes and optical heat radiation, has reduced heat loss, has improved security, has improved working condition.Make through the sealing transformation with to the control of the clad funnel basin degree of depth and discharge orifice diameter and to obtain certain pressure in the bag; Prevent that magnesium light, magnesium vapor from overflowing from discharge orifice and sealing surface, improved the absorptivity of nodularization element, reduced oxidization burning loss; Improve iron liquid quality, reduced production cost.

Claims

1. Spheroidizing Treatment Tundish; The clad that cooperates with it that comprises inclusion and be positioned at its top; Be connected with door frame on the inclusion, described door frame comprises and it is characterized in that suspension rod that is articulated in the inclusion both sides and the crossbeam that is connected two suspension rod tops: be connected with the clad boom hoisting with the clad detachable on the clad; Clad boom hoisting top connects suspension ring, and the clad boom hoisting is provided with stopping means with the lid parlor.

2. Spheroidizing Treatment Tundish according to claim 1; It is characterized in that: described clad boom hoisting is a balance crane, and it comprises the equalizer bar of being located in the door frame, and the equalizer bar detachable connects clad; The equalizer bar upper end connects sliding hanger rod, and the sliding hanger rod upper end connects suspension ring.

3. lid bag according to claim 2 is characterized in that: described sliding hanger rod is sheathed in the crossbeam, and crossbeam is provided with the balance crane stopping means that puts in place.

4. lid bag according to claim 2 is characterized in that: described removably is provided with chaining for the clad both sides, and the upper end correspondence of chaining is mounted on the equalizer bar.

5. lid bag according to claim 1 and 2 is characterized in that: also include the directive wheel of being located at the clad both sides, the wheel shaft of said directive wheel is fixed on the clad, and directive wheel installs and fixes the front-back that the position is attached to two suspension rods respectively.

6. according to claim 2 or 4 described lid bags, it is characterized in that: the equalizer bar on the balance crane on fixing two chainings in the both sides, top of clad and the door frame flexibly connects.

7. lid bag according to claim 2 is characterized in that: the door frame crossbeam is provided with the guide-localization slideway, and the inclusion center of gravity overlaps on the slideway center line, and the sliding hanger rod of balance crane and door frame crossbeam are for being slidingly matched.