CN1268456C - Warning device for preventing middle package from bleeding-out - Google Patents
Warning device for preventing middle package from bleeding-out Download PDFInfo
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- CN1268456C CN1268456C CN 200310105012 CN200310105012A CN1268456C CN 1268456 C CN1268456 C CN 1268456C CN 200310105012 CN200310105012 CN 200310105012 CN 200310105012 A CN200310105012 A CN 200310105012A CN 1268456 C CN1268456 C CN 1268456C
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- tundish
- molten steel
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Abstract
The present invention relates to an alarming device for preventing a middle package from leaking steel, which is composed of liquid-steel conducting elements and an alarm, the two liquid-steel conducting elements are arranged in a firebrick lining in an impact zone of a working layer of a middle package and are connected with the alarm or a transmitting device arranged outside the middle package through conducting wires. The present invention has the advantages of simple structure, accurate alarming, etc., and can prevent steel-leak accidents.
Description
Technical field
The invention belongs to metallurgical technology field, particularly a kind of warning device that is used to prevent steel-making continuous casting tundish bleed-out.
Background technology
Modern metallurgical production has changed traditional approach in the past, extensively adopts steel-smelting continuous casting-heat to send directly and rolls " Trinity " productive technology of short flow.Wherein casting process is the critical process in this production technology, and the continuous casting tundish is one of indispensable visual plant when molten steel casting is become various predetermined dimension strand.Because steel grade difference, temperature that continuous casting is poured into a mould just differ, casting blank specification is different, performance to tundish has proposed different requirements, not only to satisfy and smelt the flow field geometry, guarantee the molten steel cleaning, also will satisfy high efficiency continuous casting its long-life requirement.Yet its liner is bearing the impact of high-temperature molten steel and the erosion of slag during owing to tundish work, and tundish bleed-out accident happens occasionally.In case tundish bleed-out accident occurs, not only the molten steel in ladle and the tundish incurs loss, residing ad-hoc location when watering steel because of it, the molten steel that spills also will directly water the tundish chassis, on crystallizer and the following various device thereof, make it directly to burn these facilities, the serious accident of long-time stopping production certainly will take place because of the damage of equipment again simultaneously, make the maintenance that comprehensively stops production of whole piece STEELMAKING PRODUCTION line, the economic loss that causes is very big, in order to prevent and treat the generation of this type of incident, generally takes the mode of artificial prediction, the critical localisation that artificial prediction tundish corrodes, regularly repair, but in fact still have available potentiality, the result causes waste to a certain degree.For solving the generation of tundish bleed-out accident, many metallargists also set about from improving tundish inner lining refractory quality, by improving and changing inner lining refractory quality and material, set up means such as impact brick and satisfy modern production continuous casting tundish quality requirement.Though the result of above-mentioned research has improved the service life of tundish, has realized sequence casting, but still fundamentally do not solve bleed-out accident problem.
Summary of the invention
For preventing the generation of tundish bleed-out accident, the present invention carries a kind of tundish bleed-out warning device that prevents of cost.
The present invention is made of molten steel breakover element and alarm two parts, wherein the molten steel breakover element is made by the material that two blocks of anti-molten steel of A, B corrode, two molten steel breakover elements of A, B are arranged in the firebrick lining at continuous casting bakie working lining impact zone position, the vertical range of A, two breakover elements of B is 5-30mm, and links to each other with the alarm or the emitter of tundish outside respectively by lead.When the refractory corrosion on the molten steel breakover element A that gathers signal, B top is serious, A, B breakover element then expose in molten steel, under the effect of molten steel, A, B conducting, this moment, signal was promptly passed to the directly warning of alarm (or emitter) that is located at the tundish outside by lead, or launched alarm signal by emitter to receiving system.Report to the police or receive the alarm signal that emitter sends when operating personnel's device that receives the report for police service, then take measures, stop operation, maintenance continuous casting tundish, thus avoid the generation of bleed-out accident.For service life of prolonging tundish and realize the even distribution of molten steel in tundish, often to place impact brick or turbulence inhibitor in the impact zone of tundish, in order to buffering molten steel directly washing away to tundish.In such cases, still can use this warning device.Concrete grammar as shown in Figure 1.Under the prerequisite that impact brick or turbulence inhibitor are arranged, molten steel breakover element A, B can be installed in the diapire of impact brick or turbulence inhibitor, breakover element A, B are vertical at a distance of being 5-30mm still, link to each other with external circuitry by lead.Because the operating environment more complicated of tundish, various electric wires (cable) are staggered in length and breadth.In order to reduce circuit, the warning of this device is also to adopt wireless transmission, receive mode.The molten steel breakover element A, the B that gather signal are linked to each other with emitter, be installed on tundish chassis or the operating platform, receiving system is installed in the operating room.The alarm element AB that gathers signal is embedded in bakie working lining impact zone position.Accompanying drawing 3 is the emitter circuit diagram that joins with molten steel breakover element A, B.Accompanying drawing 4 is the receiving system circuit diagram.Molten steel breakover element A, B in this device are one of key componentses of this device, and for making whole device operate as normal, the material that need select for use anti-molten steel to corrode is made such as high-temperature steel or graphite.
Advantages such as the present invention has simple in structure, and it is accurate to report to the police, the economic benefit of using this device to obtain are by the service life of impact brick or turbulence inhibitor in the raising tundish and avoid the form that accident takes place to embody.Warning device has been arranged, the use of the each tundish position that all can reach capacity, and guarantee not bleed-out of safety.Save 2000 yuans the service life of tundish of every raising or impact brick (turbulence inhibitor), and improve bag and calculate (140 tons of every bags) by 5 times age, be example with certain iron and steel enterprise, can save 2,160 ten thousand yuan every year.In continuous casting was produced, its economic loss was made up of two parts when tundish bleed-out accident took place, and the one, direct economic loss is a molten steel and burn facilities such as ladle, tundish chassis, crystallizer, electromagnetic agitation, spray cooling in the direct losses tundish; The 2nd, the badly damaged serious accident that certainly will cause long-time stopping production of equipment during bleed-out.Because of the steel grade and different its economic losses of conticaster model of casting do not wait until reaching up to ten million units from millions of units, adopt the breakout generation fully of this warning device.
Description of drawings
Fig. 1 is provided with impact brick or turbulence inhibitor structural representation of the present invention in the tundish impact zone,
A kind of alarm circuit schematic diagram that Fig. 2 adopts for the present invention,
A kind of emitter circuit theory diagrams that link to each other with the molten steel breakover element that Fig. 3 adopts for the present invention,
The receiving system circuit theory diagrams that Fig. 4 adopts for the present invention.
Among Fig. 1: 1, impact brick or turbulence inhibitor; 2, coating; 3, end brick; 4, tundish bag wall; 5, tundish permanent layer
The specific embodiment
Overall structure of the present invention as shown in Figure 1, when being provided with in the impact zone of tundish under the situation of impact brick or turbulence inhibitor, be installed in the molten steel breakover element in the impact brick or the turbulence inhibitor diapire in link to each other with extraneous alarm by lead.As shown in Figure 2: alarm is made of power supply P, manual shape switch S A1 and SA2, voltmeter PV, indicator lamp HB and red led HL, molten steel breakover element AB, time relay KT, time-delay melting point KT1, relay K A, contact switch KA1, alarm HZ and associated tracks.Power supply P wherein, hand switch SA1 and indicator lamp HB are cascaded successively and have constituted the basic circuit of whole device, voltmeter PV is connected in parallel with indicator lamp HB, molten steel breakover element AB is cascaded with time relay KT after with hand switch SA2 parallel connection again, formed circuit two ends and indicator lamp HB are connected in parallel, alarm HZ is chained together with electric shock K switch A1 after with red led HL parallel connection again, formed circuit two ends and indicator lamp HB also connect together, time-delay electric shock K switch T1 is connected in parallel with circuit two ends and the indicator lamp HB that some electrical equipment KA series connection back forms, and hand switch SA1 is the master switch of whole circuit.
Can realize the breakout prediction of continuous casting tundish according to the formed Circuits System of above-mentioned method of attachment, wherein molten steel breakover element AB is contained in the firebrick lining at continuous casting bakie working lining impact zone position, and is connected with warning (emission) device by lead.Concrete operation principle is:
After hand switch SA1 closed, voltmeter PV showed voltage and capacity, and indicator lamp HB is bright.When the molten steel breakover element AB top refractory corrosion of gathering signal is serious, molten steel breakover element AB exposes in molten steel, AB conducting under the effect of liquid steel, time relay KT adhesive automatically, trigger, delayed contact KT1 closure, instantaneous acting relay KA adhesive, the KA1 closing of contact, alarm HZ reports to the police, and red led HL is bright.Must stop operation as early as possible this moment, and the maintenance of beginning continuous casting tundish can be avoided the generation of bleed-out accident thus.
After opening manual shape switch S A1, alarm will be disengaged.Closed manually shape switch S A2 is equivalent to the AB conducting, sounds at once if report to the police, and the warning device Plant in good condition is described, can check with this whether native system work is normal.Open hand switch SA2, watch-dog begins to enter new round duty at once.
Claims (4)
1, a kind of tundish bleed-out warning device that prevents, it is characterized in that constituting by molten steel breakover element and alarm two parts, two molten steel breakover elements (A, B) are arranged in the firebrick lining at bakie working lining impact zone position, and link to each other with the alarm or the emitter that are located at tundish outside respectively by lead, the vertical range of two molten steel breakover elements (A, B) is 5-30mm.
2, by the described tundish bleed-out of claim 1 warning device, it is characterized in that when placing impact brick or turbulence inhibitor in the impact zone of tundish, the molten steel breakover element of this device be located in the impact brick or the turbulence inhibitor diapire in, and the molten steel breakover element is linked to each other with extraneous alarm or emitter by lead.
3, by the described tundish bleed-out of claim 1 warning device, when wireless transmission, receive mode are adopted in the warning that it is characterized in that this device, the molten steel breakover element (A, B) of gathering signal is linked to each other with tundish emitter outward, emitter can be located on tundish chassis or the operating desk, receiving system is installed in the operating room.
4,, it is characterized in that described molten steel breakover element is to be made by the conductive material of anti-molten steel erosion by the described tundish bleed-out of claim 1 warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310105012 CN1268456C (en) | 2003-11-06 | 2003-11-06 | Warning device for preventing middle package from bleeding-out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310105012 CN1268456C (en) | 2003-11-06 | 2003-11-06 | Warning device for preventing middle package from bleeding-out |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1541787A CN1541787A (en) | 2004-11-03 |
| CN1268456C true CN1268456C (en) | 2006-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310105012 Expired - Fee Related CN1268456C (en) | 2003-11-06 | 2003-11-06 | Warning device for preventing middle package from bleeding-out |
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| Country | Link |
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| CN (1) | CN1268456C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114176A (en) * | 2011-11-17 | 2013-05-22 | 洛阳利尔耐火材料有限公司 | Sound-light alarm apparatus for preventing ladle bottom blowing air brick steel bleed-out |
| CN108907129B (en) * | 2018-07-19 | 2021-03-23 | 首钢集团有限公司 | Steel leakage detection device and method |
| CN114147232A (en) * | 2021-11-29 | 2022-03-08 | 上海材料研究所 | Tundish system active alarm device for preparing metal powder through gas atomization |
| CN115582550A (en) * | 2022-10-17 | 2023-01-10 | 深圳市深汕特别合作区万泽精密科技有限公司 | Tundish, bleed-out protection system of tundish and gas atomization powder making device |
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2003
- 2003-11-06 CN CN 200310105012 patent/CN1268456C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1541787A (en) | 2004-11-03 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060809 Termination date: 20121106 |