CN201760587U

CN201760587U - Ladle covering technique suitable for various refining outside furnace

Info

Publication number: CN201760587U
Application number: CN201020279862XU
Authority: CN
Inventors: 黄永青
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-03
Filing date: 2010-08-03
Publication date: 2011-03-16
Anticipated expiration: 2020-08-03

Abstract

The utility model discloses a ladle covering technique suitable for various refining outside a furnace, which comprises a ladle cover with a hinge and a refractory lining, a hinge component mounted on the ladle cover, a moving and resetting device of the ladle cover and a ladle cover storage bracket for conveniently storing the ladle cover temporarily when needing to detach the ladle cover from a ladle. The hinge component is fixed on the moving and resetting device of the ladle cover; the lower end of the hinge component is connected with lower connecting claws; the lower connecting claws are arranged on the ladle cover; three or four groups of upper and lower connecting claws can be uniformly distributed; each upper connecting claw corresponds to each lower connecting claw up and down; the upper connecting claws are inverted U-shaped; a pin rod is respectively arranged at U openings; the lower connecting claws are U-shaped; a steel plate for tipping the ladle at an outer end is provided with a keyseat with a lateral concave groove; and a coak rotating by means of dead weight is added at the flat side of the keyseat. The ladle covering technique suitable for various refining outside the furnace has the advantages of ingenious structural design, obvious energy-saving effect and remarkable practicability.

Description

A kind of ladle stamp technology that is fit to various external refinings

Technical field

The utility model relates to a kind of energy saver of adding a cover of smelting iron and steel technical field, particularly relates to a kind of ladle stamp technology that is fit to various external refinings.

Background technology

Ladle is the important tool of metallurgical works indispensability, the heating of ladle and insulation are the effective measures that improve steel quality and output, make full use of ladle and cast the height that the waste heat of molten steel not only influences the comprehensive energy consumption of steel-making, and each procedure operation situation had very big influence, ladle stamp is exactly one of approach of ladle heat insulation.

Ladle stamp is not new ideas, because its conspicuous energy-saving effect, many steelmaker authors dream of it for many years, and in fact, some steel mills have begun the ladle stamp operation already on conticaster; Yet, because existing ladle stamp operation must be finished by overhead traveling crane is auxiliary, make this technology operability in actual applications be subjected to very big restriction, thereby make this technology only be confined to the use of continuous-casting steel pouring stage mostly, can't accomplish in the whole use cyclic process of ladle, ladle to be covered on ladle, therefore, more existing ladles adopt crane that clad is covered on ladle usually, add a cover operation and reach the desired energy-saving effect of steelmaker author far away, the most of heat that scatters and disappears the molten steel in ladle refractory lining and bag is not effectively controlled yet.

The ladle heat radiation generally is made of two parts, and the one, the conduction heat between cylinder-packing and the involucrum; The 2nd, loose to the radiant heat of air by the ladle open top; The unique way that reduces conductive heat loss is to reduce the usage quantity of the online circulation of ladle, promptly directly reduces number of heat source, is example with the steelshop of 150 tons of stove taps, reduces the saving that an online circulation ladle will mean 400,000 dollars of every year.

Ladle is very fast by its open top to airborne heat loss through radiation speed, especially when the sky bag, the heat loss through radiation speed of cylinder-packing will be decided by the biquadratic relation of the temperature difference between cylinder-packing outer surface and the ladle environment, studies show that, after 150 tons of ladle skies are unwrapped the beginning, to cause next stove molten steel cools 15 degree of coming out of the stove by cylinder-packing to the radiation heat loss of air in first 20 minutes, and 40% after occurring in sky and unwrapping the beginning first 5 minutes of this heat loss, by adding a cover on ladle, this radiation heat loss can significantly be reduced.

Summary of the invention

In order to solve deficiency of the prior art, the utility model provides a kind of ladle stamp technology that is fit to various external refinings, it is with original and different hinge type structural design, its mature technology research in addition to constructing under different scenes and the process conditions, make ladle stamp operate the dependence of fundamentally having broken away from overhead traveling crane, except molten steel is come out of the stove the process, the ladle lid can cover on ladle in the whole process of the online circulation of ladle all the time, and, in the use circulation of ladle, no matter be that the unlatching of ladle lid or place is all finished automatically by frame for movement design cleverly, neither need overhead traveling crane, also do not need artificial intervention, it has fundamentally realized the ladle stamp dream, brings huge energy-saving benefit to steel mill.

The purpose of this utility model realizes by the following technical solutions

A kind of ladle stamp technology that is fit to various external refinings, comprise: the ladle lid that door assembly with hinge and glass in right hand and left and liner are fire-resistant, be installed in the hinge member on the ladle shell, moving and resetting means of ladle lid, and need be with the ladle lid when ladle unloads and the ladle lid storage bracket that makes things convenient for clad temporarily to deposit.

Described hinge member is fixed on moving of ladle lid and the resetting means, and the hinge member lower end is connected with the lower link pawl, and the lower link pawl is arranged at ladle and covers.

Cover at ladle and to be respectively equipped with hole and the ash gate of spying on and dose the drainage agent, upper and lower connection pawl can uniformly be provided with three groups or four groups, and the two upper and lower correspondence, and going up wherein connects pawl and be down " U " shape; And install a pin rod at " U " mouthful place, the lower link pawl then is " U " shape, and offers the cotter way of a band side chase mutually on hectare ladle steel plate in the outer end, adds a latching that depends on deadweight to rotate in the flat side of cotter way.

When using hinge type ladle convering system to produce, to no longer need under the normal condition online running ladle is carried out preheating, after the preparation service of finishing between the heat ladle, ladle is not to be placed to resembling usually to carry out preheating on the preheater, wait on the buggy ladle on electric furnace or converter next door but be taken back to, and ladle lid lid is arranged in the above, begin tapping up to next stove, only when running into the overtime operation that reaches several hrs and postpone, the ladle preheating just need take in.

The member of hinge type ladle convering system is long-lived, need considerably less periodic maintenance work, clad is served as a contrast with high temperature resistant, high-intensity low cement pouring material fire proofed wood, under maintenance rationally and appropriate operating condition, the clad refractory lining can be served 1 year continuously or the longer time just need be changed.

Hinge type ladle convering system will make the operator of steel mill significantly reduce the interior thermal loss of ladle, thereby the cooling degree that molten steel is experienced in the minimizing ladle, the reducing of this energy loss will change into important production economic benefit, and topmost benefit shows the reduction of running cost, the raising of product quality and the raising of production efficiency.

Because the utility model has adopted hinge type ladle convering system, ladle is covered in being close to whole ladle use cycle period all cover on ladle all the time, and have following beneficial effect:

1 reduces the cooling of molten steel in the bag, in case ladle enters online recycling, the ladle preheating between the heat can be exempted;

The turnover of 2 ladles is accelerated;

3 reduce the usage quantity of online ladle;

4 reduce the temperature fluctuation of molten steel in ladle, tundish and crystallizer;

5 exempt in the casting process the auxiliary preheating to tundish;

6 yield of alloy are more stable;

7 steel scraps that reduce in the ladle produce;

8 reduce the cleaning demand to ladle edge and slag line, thereby reduce the mechanical damage fire-resistant to cylinder-packing;

9 improve the free casting rate of steel ladle sliding water gap;

10 reduce operating delay;

11 reduce energy resource consumption, and the safeguard protection that improves plant personnel;

12 molten steel tapping temperatures can be lowered, and generally can fall 10～15 degree;

Ladle preheater of 13 needs is supported production operation, and this preheater only is used for ladle by new heating of building cylinder-packing before putting into production;

The interior degree of superheat of molten steel on conticaster of 14 bags can be reduced and be more stable;

15 because the molten steel tapping temperature reduces, and deoxidier consumption is lowered;

Fire-resistant erosion on 16 converters and the ladle is reduced, so the furnace life/bag is extended age;

The molten steel operational processes time of 17 pairs of different phases such as smelting, ladle processing and continuous casting shortens;

The generation of 18 waste materials is reduced as reactant byproduct and fire-resistant waste product etc., and product quality is improved.

Description of drawings

Fig. 1 faces structural representation for the utility model

Fig. 2 is the schematic top plan view figure of Fig. 1

Fig. 3 is the utility model one embodiment schematic diagram

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described

Referring to Fig. 1, Fig. 2, Fig. 3, a kind of ladle stamp technology that is fit to various external refinings, comprise: the ladle lid 1 that door assembly with hinge and glass in right hand and left and liner are fire-resistant, be installed in the hinge member 10 on the ladle shell, moving and resetting means 13 of ladle lid, and need be with the ladle lid when ladle unloads and the ladle lid storage bracket 11 that makes things convenient for clad temporarily to deposit.

Be respectively equipped with hole 8 and the ash gate 7 of spying on and dose the drainage agent on ladle lid 1, upper and lower connection pawl can uniformly be provided with three groups or four groups, and the two upper and lower correspondence.The connection pawl 2 of going up wherein is down " U " shape; And install a pin rod 8 at " U " mouthful place, lower link pawl 4 then is " U " shape, and offer mutually the cotter way 9 of a band side chase on hectare ladle steel plate in the outer end, flat side at cotter way 9 adds a latching 3 that depends on deadweight to rotate, this ladle whole process is added a cover the sealing attemperator and need be removed the lid when connecing steel or external refining at ladle, carries out other such as deslagging, all need not remove clad when changing bag end slide gate nozzle and dosing operation such as drainage agent.

Ladle whole process of the present utility model is added a cover the sealing attemperator when ladle need be added a cover, with crane or other crane gear ladle is covered 1, lower link pawl correspondence position notes making ash gate center line and ladle gudgeon center line perpendicular lid on ladle 5, connect pawl 2 with " U " connects pawl 3 kissing platforms on the shape on " U " shape of this moment, in the cotter way 9 that pin rod 8 in the last connection pawl 2 embeds in the lower link pawl 4, when the need thermometric is taken a sample, can with thermoelectricity occasionally the sample cup stretch into ladle by thermometric thief hole 6, and when deslagging, along with tumbling of ladle, ash gate 7 is opened automatically by deadweight, after ladle recovers uprightly, ash gate 7 is also closed automatically, in ladle is tumbled process, under the deadweight effect of ladle lid 1 and pin rod 8 is slipped in the chase of cotter way 9, this moment, latching 3 also pinned pin rod 8 by the deadweight rotation, thereby lid 1 is fixed on the ladle 5 firmly, and when ladle recovered upright, pin rod 8 and latching 9 be the while automatic homing also, on, second line of a couplet pawl among the embodiment is 4 pairs more than 2 pairs or 2 pairs.

The utility model is simple in structure, dependable performance, and flow chart is simplified, and excellent thermal insulation performance connects before the molten steel, and the ladle liner temperature can reach more than 1000 ℃, and energy-saving effect is remarkable, can reduce tapping temperature, reduces various material consumptions, Benefit.

Claims

1. ladle stamp technology that is fit to various external refinings, it is characterized in that: comprise the ladle lid that door assembly with hinge and glass in right hand and left and liner are fire-resistant, be installed in the hinge member on the ladle shell, moving and resetting means of ladle lid, and need be with the ladle lid when ladle unloads and the ladle lid storage bracket that makes things convenient for clad temporarily to deposit.

2. a kind of ladle stamp technology that is fit to various external refinings according to claim 1, it is characterized in that, described hinge member is fixed on moving of ladle lid and the resetting means, and the hinge member lower end is connected with the lower link pawl, and the lower link pawl is arranged at ladle and covers.

3. a kind of ladle stamp technology that is fit to various external refinings according to claim 1 is characterized in that described ladle covers and is respectively equipped with hole and the ash gate of spying on and dose the drainage agent.

4. a kind of ladle stamp technology that is fit to various external refinings according to claim 2, it is characterized in that, described upper and lower connection pawl can uniformly be provided with three groups or four groups, and the two upper and lower correspondence, wherein go up to connect pawl be down " U " and shape, and mouthful locate to install a pin rod at " U ", the lower link pawl then is " U " shape, and offer mutually the cotter way of a band side chase on hectare ladle steel plate in the outer end, add a latching that depends on deadweight to rotate in the flat side of cotter way.