阅读说明：本技术 高炉储铁式主沟侵蚀程度判断方法及高炉储铁式主沟修补方法 (Blast furnace iron storage type tap drain erosion degree judgment method and blast furnace iron storage type tap drain method for repairing and mending ) 是由 陈生利 颜伟 陈开泉 蔡林 徐国庆 欧阳军 蒙万贵 于 2019-08-30 设计创作，主要内容包括：本申请涉及一种高炉储铁式主沟侵蚀程度判断方法及高炉储铁式主沟修补方法,属于炼铁技术领域。一种高炉储铁式主沟侵蚀程度判断方法,包括：根据总铁通量确定主沟浇注料铁水液面层侵蚀量和主沟浇注料底层侵蚀量。根据主沟浇注料层厚度、主沟浇注料铁水液面层侵蚀量及主沟浇注料底层侵蚀量确定主沟浇注料铁水液面层厚度和主沟浇注料底层厚度。再根据主沟浇注料铁水液面层厚度和主沟浇注料底层厚度判断主沟的侵蚀程度。该方法精准,能够给作业人员提供可靠的判断结果。同时便于作业人员及时修补或重新浇注储铁式主沟,避免储铁式主沟烧穿,保证高炉储铁式主沟的正常运行。(This application involves a kind of blast furnace iron storage type tap drain erosion degree judgment method and blast furnace iron storage type tap drain method for repairing and mending, belong to ironmaking technology field.A kind of blast furnace iron storage type tap drain erosion degree judgment method, comprising: castable in main trough molten iron level layer erosion amount and castable in main trough bottom erosion amount are determined according to total Tie Tong amount.Castable in main trough molten iron level thickness degree and castable in main trough underlayer thickness are determined according to castable in main trough thickness degree, castable in main trough molten iron level layer erosion amount and castable in main trough bottom erosion amount.The erosion degree of tap drain is judged further according to castable in main trough molten iron level thickness degree and castable in main trough underlayer thickness.This method is accurate, can provide reliable judging result to operating personnel.Iron storage type tap drain is repaired or be poured again in time convenient for operating personnel simultaneously, iron storage type tap drain is avoided to burn, and guarantees the normal operation of blast furnace iron storage type tap drain.)

1. a kind of blast furnace iron storage type tap drain erosion degree judgment method characterized by comprising

Castable in main trough molten iron level layer erosion amount and castable in main trough bottom erosion amount are determined according to total Tie Tong amount；

It is invaded according to castable in main trough thickness degree, the castable in main trough molten iron level layer erosion amount and the castable in main trough bottom Erosion amount determines castable in main trough molten iron level thickness degree and castable in main trough underlayer thickness；

The erosion of tap drain is judged further according to the castable in main trough molten iron level thickness degree and the castable in main trough underlayer thickness Degree.

2. blast furnace iron storage type tap drain erosion degree judgment method according to claim 1, which is characterized in that total Tie Tong The calculation formula of amount is as follows:

P=P₁+P₂+P₃+…+P_n

Wherein, P is total Tie Tong amount, P₁For the Tie Tong amount after the tap drain first time tapping, P₂Go out for second of the tap drain Tie Tong amount after iron, P₃For the Tie Tong amount after the tap drain third time tapping, and so on, P_nAfter the tap drain n-th tapping Tie Tong amount；

The calculation formula of the castable in main trough molten iron level layer erosion amount is as follows:

N₁=P × & , &=0.0015-0.002

The calculation formula of the castable in main trough bottom erosion amount is as follows:

N₂=P × &₁, &₁=0.5&

Wherein, N₁For the castable in main trough molten iron level layer erosion amount, unit mm, N₂It is invaded for the castable in main trough bottom Erosion amount, unit mm, & are castable molten iron level layer ton iron erosion factor, &₁For castable bottom ton iron erosion factor.

3. blast furnace iron storage type tap drain erosion degree judgment method according to claim 2, which is characterized in that the tap drain pours The calculation formula of material feeding molten iron level thickness degree is as follows: H₁=N-N₁, the calculation formula of the castable in main trough underlayer thickness is such as Under: H₂=N-N₂；

Wherein, N is castable in main trough thickness degree, H₁For the castable in main trough molten iron level thickness degree, unit mm, H₂For institute State castable in main trough underlayer thickness, unit mm.

4. blast furnace iron storage type tap drain erosion degree judgment method according to claim 3, which is characterized in that when the tap drain When castable molten iron level thickness degree and/or the castable in main trough underlayer thickness are less than 150mm, tap drain corrodes serious.

5. a kind of blast furnace iron storage type tap drain method for repairing and mending characterized by comprising

The state of molten iron level in the iron storage type tap drain is monitored, monitoring result include it is static, there is ripple, emit liquid Bubble, bubbling with flame and are rolled；

According to the monitoring result, by the described in any item blast furnace iron storage type tap drain erosion degree judgment methods of Claims 1-4 The determining castable in main trough molten iron level thickness degree and the castable in main trough underlayer thickness determine method for repairing and mending, described to repair Compensating method includes without stopping tap drain repairing, reinforcing tap drain monitoring, mid-term repairing is carried out to tap drain and stop tap drain and repair.

6. blast furnace iron storage type tap drain method for repairing and mending according to claim 5, which is characterized in that when the castable in main trough iron When aqueous surface thickness and/or the castable in main trough underlayer thickness are less than 150mm, stop tap drain and repaired.

7. blast furnace iron storage type tap drain method for repairing and mending according to claim 5, which is characterized in that the monitoring result is described Molten iron level is static or ripple, and the castable in main trough molten iron level thickness degree and the castable in main trough occurs in the liquid level Underlayer thickness is all larger than equal to 150mm, does not need to stop tap drain to be repaired.

8. according to the described in any item blast furnace iron storage type tap drain method for repairing and mending of claim 5 to 7, which is characterized in that the monitoring As a result occur emitting vacuole, and the castable in main trough molten iron level thickness degree and the castable in main trough bottom for the molten iron level Thickness degree is all larger than equal to 150mm, reinforces monitoring to tap drain.

9. according to the described in any item blast furnace iron storage type tap drain method for repairing and mending of claim 5 to 7, which is characterized in that the monitoring As a result there is the bubbling band flame, and the castable in main trough molten iron level thickness degree and the tap drain for the molten iron level Castable underlayer thickness is all larger than equal to 150mm, carries out mid-term repairing to tap drain.

10. according to the described in any item blast furnace iron storage type tap drain method for repairing and mending of claim 5 to 7, which is characterized in that the monitoring When as a result rolling for the molten iron level, stops tap drain and repaired.

Technical field

This application involves ironmaking technology fields, and in particular to a kind of blast furnace iron storage type tap drain erosion degree judgment method and Blast furnace iron storage type tap drain method for repairing and mending.

Background technique

Currently, large blast furnace stokehold tapping tap drain is commonly iron storage type tap drain, iron storage type tap drain is all made of disposal pouring Technique is completed.Iron storage type tap drain includes: pouring layer, fire brick layer, thermal insulation layer, steel shell layer and table hardened layer from the inside to the outside. Large blast furnace stokehold iron storage type tap drain after a period of work, whether, erosion degree is how if corroding by tap drain side wall and bottom, There is presently no reliable technical solutions to judge, and domestic blast furnace iron storage type tap drain is caused the generation of burn-through accident often occur.

Under prior art conditions, some blast furnaces are adopted in order to ensure iron storage type tap drain operational safety, stokehold technical staff It takes and periodically the molten iron of iron storage type tap drain is discharged through residual iron eye, visually observe iron storage type tap drain erosion degree, this method is very big The labor intensity of stokehold operating personnel is increased, and frequently discharges iron storage type tap drain molten iron completely, iron storage type tap drain pours Material feeding layer is influenced by the fluctuation of the huge temperature difference, easily aggravates the damage of pouring layer.

Summary of the invention

In view of the deficiencies of the prior art, the purpose of the embodiment of the present application includes providing a kind of blast furnace iron storage type tap drain erosion journey Spend judgment method and blast furnace iron storage type tap drain method for repairing and mending, with improve can not the technology of accurate Efficient software patching iron storage type tap drain ask Topic.

In a first aspect, the embodiment of the present application proposes a kind of blast furnace iron storage type tap drain erosion degree judgment method, comprising: root Castable in main trough molten iron level layer erosion amount and castable in main trough bottom erosion amount are determined according to total Tie Tong amount.According to castable in main trough Thickness degree, castable in main trough molten iron level layer erosion amount and castable in main trough bottom erosion amount determine castable in main trough molten iron level Thickness degree and castable in main trough underlayer thickness.Further according to castable in main trough molten iron level thickness degree and castable in main trough underlayer thickness Judge the erosion degree of tap drain.

The application can efficiently judge iron storage type by castable in main trough molten iron level layer erosion amount and bottom erosion amount The erosion degree of tap drain, this method is accurate, can provide reliable judging result to operating personnel, be avoided to naked-eye observation storage Iron formula tap drain erosion degree and frequently iron storage type tap drain molten iron is discharged clean, aggravate the damage of pouring layer.Simultaneously convenient for work Industry personnel repair in time or are poured again iron storage type tap drain, and iron storage type tap drain is avoided to burn, and are guaranteeing blast furnace iron storage type tap drain just Often operation.

In the section Example of the application, the calculation formula of total Tie Tong amount is as follows: P=P₁+P₂+P₃+…+P_n.Wherein, P For total Tie Tong amount, P₁For the Tie Tong amount after tap drain first time tapping, P₂For the Tie Tong amount after second of tapping of tap drain, P₃For tap drain Tie Tong amount after third time tapping, and so on, P_nFor the Tie Tong amount after tap drain n-th tapping.Castable in main trough molten iron level The calculation formula of layer erosion amount is as follows: N₁=P × & , &=0.0015-0.002.The calculating of castable in main trough bottom erosion amount is public Formula is as follows: N₂=P × &₁, &₁=0.5&.Wherein, N₁For castable in main trough molten iron level layer erosion amount, unit mm, N₂For tap drain Castable bottom erosion amount, unit mm, & are castable molten iron level layer ton iron erosion factor, &₁For castable bottom ton iron Erosion factor.

Present inventor proposes above-mentioned calculation formula after binding isotherm and practice.It can be high by the calculation formula Effect accurately judges the erosion degree of iron storage type tap drain.

In the section Example of the application, the calculation formula of castable in main trough molten iron level thickness degree is as follows: H₁=N- N₁, the calculation formula of castable in main trough underlayer thickness is as follows: H₂=N-N₂.Wherein, N is castable in main trough thickness degree, H₁For tap drain Castable molten iron level thickness degree, unit mm, H₂For castable in main trough underlayer thickness, unit mm.

Pouring refractories molten iron level thickness degree and castable in main trough underlayer thickness are the erosion degrees for judging iron storage type tap drain An important factor for.The erosion degree of iron storage type tap drain efficiently can be accurately judged by above-mentioned formula.

In the section Example of the application, when castable in main trough molten iron level thickness degree and/or castable in main trough bottom When thickness is less than 150mm, tap drain corrodes serious.

Present inventor is obtained with practice in binding isotherm and is poured using castable in main trough molten iron level thickness degree with tap drain Material feeding underlayer thickness judges the foundation of the erosion degree of iron storage type tap drain.

Second aspect, the embodiment of the present application propose a kind of blast furnace iron storage type tap drain method for repairing and mending, comprising: to iron storage type master The state of molten iron level is monitored in ditch, monitoring result include it is static, occur ripple, emit vacuole, bubbling band flame and go out Now roll.According to monitoring result, the castable in main trough molten iron determined by above-mentioned blast furnace iron storage type tap drain erosion degree judgment method Liquid levels layer thickness and castable in main trough underlayer thickness determine that method for repairing and mending, method for repairing and mending include without stopping tap drain repairing, to tap drain Reinforce monitoring, mid-term repairing is carried out to tap drain and stops tap drain and repairs.

The application is by the state of molten iron level in the tap drain of monitoring device real-time monitoring and the castable in main trough that is calculated Erosion degree combines, and judges the erosion degree of tap drain jointly, and according to the corresponding repairing treatment of carry out of different situations.It should Method compares existing micro-judgment more efficiently and accurately, and operating personnel is enabled to learn that the erosion condition of tap drain is gone forward side by side in time Row is timely handled, and iron storage type tap drain is avoided to burn initiation accident, guarantees the normal operation of blast furnace iron storage type tap drain.

In the section Example of the application, when castable in main trough molten iron level thickness degree and/or castable in main trough bottom When thickness is less than 150mm, stops tap drain and repaired.

It is serious that above-mentioned calculated result shows that tap drain corrodes, and you can get it without combining molten iron level state stops tap drain and repaired The conclusion of benefit.

In the section Example of the application, monitoring result is that molten iron level is static or ripple occurs in liquid level, and tap drain pours Material feeding molten iron level thickness degree and castable in main trough underlayer thickness are all larger than equal to 150mm, do not need to stop tap drain to be repaired.

Molten iron level is static or liquid level ripple occurs and illustrates that erosion is not serious in tap drain, and calculated result also illustrates that tap drain It corrodes not serious.

In the section Example of the application, monitoring result is that molten iron level occurs emitting vacuole, and castable in main trough molten iron Liquid levels layer thickness and castable in main trough underlayer thickness are all larger than equal to 150mm, reinforce monitoring to tap drain.

Molten iron level, which occurs emitting vacuole and illustrates to have in tap drain, to be corroded, but not serious, while calculated result indicates tap drain It corrodes not serious, therefore tap drain is reinforced monitoring, when erosion is further aggravated, then be repaired.

In the section Example of the application, monitoring result is that molten iron level bubbling band flame, and castable in main trough occurs Molten iron level thickness degree and castable in main trough underlayer thickness are all larger than equal to 150mm, carry out mid-term repairing to tap drain.

There is bubbling band flame and illustrates that erosion degree is repaired in tap drain in molten iron level, but calculated result indicates master Ditch erosion is not serious, there is no need to stop tap drain, but carries out mid-term repairing to tap drain.

In the section Example of the application, when monitoring result is that molten iron level rolls, stops tap drain and repaired.

When molten iron level rolls, illustrate to corrode in tap drain seriously, at this time without the concern for castable in main trough molten iron The calculated result of liquid levels layer thickness and castable in main trough underlayer thickness is directly stopped tap drain and is repaired.

The beneficial effect of the application includes:

The application can efficiently judge iron storage type by castable in main trough molten iron level layer erosion amount and bottom erosion amount The erosion degree of tap drain, this method is accurate, can provide reliable judging result to operating personnel, be avoided to naked-eye observation storage Iron formula tap drain erosion degree and frequently iron storage type tap drain molten iron is discharged clean, aggravate the damage of pouring layer.Further, will The state of molten iron level is combined with the castable in main trough erosion degree being calculated in tap drain, judges the erosion journey of tap drain jointly Degree.This method compares existing micro-judgment more efficiently and accurately, and operating personnel is enabled to learn the erosion feelings of tap drain in time Condition is simultaneously timely handled, and iron storage type tap drain is avoided to burn initiation accident, guarantees the normal operation of blast furnace iron storage type tap drain.

Detailed description of the invention

Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.

Fig. 1 is tap drain structural schematic diagram provided by the embodiments of the present application.

Label: 1- tap drain；Cinder notch under 2-；3- trough；4- tap drain thermal insulation layer；5- skimming tool；6- castable in main trough layer；7- Furnace wall；8- main trough steel casing layer；9- blast furnace taphole.

Specific embodiment

It, below will be in the embodiment of the present application to keep the purposes, technical schemes and advantages of the embodiment of the present application clearer Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase Product.

The integrated poured process flow of iron storage type tap drain are as follows: according to blast furnace main channel design size molding, select castable, cleaning Clean tap drain residue iron and scaling loss castable, mold is mounted in tap drain frame, is poured by castable using the mixing of standard water Material feeding pours castable to mold, and demoulding toasts dry pouring layer, comes into operation.The integrated poured completion of iron storage type tap drain Afterwards, the general 450-600mm of cast layer thickness has differences according to the of different sizes of heat size.When Tie Tong amount is up to 150,000 tons or more When, iron storage type castable in main trough molten iron level layer is generally etched up to 300mm or more, stops tap drain repairing, therefore, in iron storage type master Crude pig iron flux is up to 100,000 tons or so, in order to guarantee tap drain safety, generally takes and stops tap drain progress running repair processing, the light maintenance of mid-term It mends, does not need integrated poured using grinding tool.

Under prior art conditions, repairing and casting iron storage type tap drain again, are according to iron storage type castable in main trough Iron flux standard is designed to determine.It is influenced by castable quality and pouring technology, iron storage type tap drain is after a period of work, main Whether ditch side wall and bottom are corroded, and how is erosion degree, and there is presently no reliable technical solutions to judge, and lead to state Often there is the generation of burn-through accident in interior blast furnace iron storage type tap drain.When iron storage type tap drain is burnt after the accident, store in tap drain Molten iron flows directly into Blast Furnace Bottom region, easily burns out furnace bottom cooling pipe and other equipment, it is easier to cause the safety such as fire Accident.It is determined the need for repairing or stopping tap drain using standard according to castable in main trough, there are more serious drawbacks.

Under prior art conditions, some blast furnaces are adopted in order to ensure iron storage type tap drain operational safety, stokehold technical staff It takes and periodically the molten iron of iron storage type tap drain is discharged through residual iron eye, visually observe iron storage type tap drain erosion degree, this method is very big The labor intensity of stokehold operating personnel is increased, and frequently discharges iron storage type tap drain molten iron completely, iron storage type tap drain pours Material feeding layer is influenced by the fluctuation of the huge temperature difference, easily aggravates the damage of pouring layer.

In view of the above technical defects, present inventor's binding isotherm proposes one kind with practice and precisely can effectively judge The method of blast furnace iron storage type tap drain erosion degree avoids naked-eye observation iron storage type tap drain erosion degree and frequently by iron storage type The discharge of tap drain molten iron is clean, aggravates the damage of pouring layer.Due to blast furnace iron storage type tap drain reparation according to its erosion degree not Same and different, in order to which more accurate judges erosion degree in the accurate determining method repaired, present inventor will be above-mentioned Blast furnace iron storage type tap drain erosion degree judgment method is combined with monitoring system, by calculating castable in main trough erosion amount combination intelligence Energy monitoring system, effectively judges the erosion degree of iron storage type tap drain, and take effective measures, and can avoid iron storage type tap drain and burns Connect slag iron safety accident before the State of Blast Furnace of hair.

Below to a kind of blast furnace iron storage type tap drain erosion degree judgment method of the embodiment of the present application and blast furnace iron storage type master Ditch method for repairing and mending is specifically described.

The embodiment of the present application proposes a kind of blast furnace iron storage type tap drain erosion degree judgment method, comprising:

After the completion of iron storage type tap drain is newly-built.According to casting grinding tool size, iron storage type castable in main trough layer is obtained with a thickness of N.

After iron storage type tap drain is using some cycles, total Tie Tong amount is calculated according to the Tie Tong amount of each tapping.Total Tie Tong amount P Calculation formula it is as follows: P=P₁+P₂+P₃+…+P_n.Wherein, P₁For the Tie Tong amount after tap drain first time tapping, P₂For tap drain second Tie Tong amount after secondary tapping, P₃For the Tie Tong amount after tap drain third time tapping, and so on, P_nFor the iron after tap drain n-th tapping Flux.

Castable in main trough molten iron level layer erosion amount N is determined according to total Tie Tong amount P₁, castable in main trough molten iron level layer invades The calculation formula of erosion amount is as follows: N₁=P × &.Wherein, & is castable molten iron level layer ton iron erosion factor.Present invention People proposes, determines iron storage type castable in main trough molten iron level layer ton iron erosion factor & , &=according to castable erosion amount when stopping ditch Stop castable erosion amount/150000 when ditch.The tap drain pouring material of country's large blast furnace at present, proves by using practice, leads to iron Amount be greater than 150,000 tons, the erosion for the amount of pouring, fall off just it is fairly obvious, therefore according to 150,000 tons of this determinings coefficients meet production in fact Border.In the section Example of the application, the value of & is 0.0015-0.002.

& is the value that a practical experience is derived, be erosion amount after stopping ditch by tap drain many times with it is total when stopping ditch Come what is calculated, general large blast furnace tap drain stops total iron when ditch and corrodes system so calculating at 150,000 tons or so iron Number takes 150,000 tons.Determine step are as follows: the pouring material quality of every blast furnace main channel be substantially it is stable, pour thickness substantially fix , so erosion factor is substantially fixed；Tap drain molten iron level layer is washed away by molten iron flow and is influenced, and erosive velocity can compare tap drain Bottom is fast, is proved by production practices, liquid levels layer about 1 speed fastly than bottom layer erosive velocity.

Castable in main trough bottom erosion amount N is determined according to total Tie Tong amount P₂, the calculating public affairs of castable in main trough bottom erosion amount Formula is as follows: N₂=P × &₁.Wherein, &₁For castable bottom ton iron erosion factor.Present inventor proposes, according to castable Molten iron level layer ton iron erosion factor determines castable bottom ton iron erosion factor, &₁=0.5&.Implement in the part of the application In example, &₁Value be 0.00075-0.001.

Fig. 1 is please referred to, Fig. 1 shows tap drain 1, lower cinder notch 2, trough 3, tap drain thermal insulation layer 4, skimming tool 5, tap drain casting The bed of material 6, furnace wall 7, main trough steel casing layer 8 and blast furnace taphole 9.According to iron storage type castable in main trough thickness degree N and castable in main trough Molten iron level layer erosion amount N₁Determine castable in main trough molten iron level layer thickness H₁, calculation formula is as follows: H₁=N-N₁.According to storage Iron formula castable in main trough thickness degree N and castable in main trough bottom erosion amount N₂Determine castable in main trough underlayer thickness H₂, calculation formula It is as follows: H₂=N-N₂。

Since current large blast furnace tap drain pours universal 300mm of thickness of feed layer or so, when tap drain pour the bed of material corrode it is more than half When, i.e., when erosion amount reaches 150mm, it is serious to illustrate that tap drain corrodes.Present inventor proposes according to castable in main trough molten iron liquid Surface thickness and/or castable in main trough underlayer thickness determine the erosion degree of tap drain compared with 150mm.In the reality of the application It applies in example, when castable in main trough molten iron level thickness degree and/or castable in main trough underlayer thickness are less than 150mm, tap drain corrodes Seriously.

This method determines castable in main trough molten iron level layer erosion amount and bottom erosion amount by Tie Tong amount, further according to above-mentioned Two erosion amounts judge the erosion degree of iron storage type tap drain.Judging result is accurate, and reliable judgement can be provided to operating personnel As a result, being avoided to naked-eye observation iron storage type tap drain erosion degree and iron storage type tap drain molten iron frequently being discharged to clean, aggravation The damage of pouring layer.

Based on above-mentioned blast furnace iron storage type tap drain erosion degree judgment method, the embodiment of the present application proposes a kind of blast furnace storage iron Formula tap drain method for repairing and mending, comprising:

The state of molten iron level in iron storage type tap drain is monitored, monitoring result include it is static, there is ripple, emit liquid Bubble, bubbling with flame and are rolled.

In the section Example of the application, monitored in iron storage type tap drain using the monitoring device for being set to iron storage type tap drain The state of molten iron level.Monitoring device is installed in the column of iron storage type tap drain.Monitoring device is the general intelligence of the art Monitoring device, the i.e. video monitoring apparatus with high definition pixel may be used to intelligent monitoring.It is designed in intelligent apparatus system Four analog signals: there is ripple in molten iron level, molten iron level emits vacuole, flame occurs in molten iron level, molten iron level turns over Rolling.As an implementation, video dynamic menu is corroded by simulating the relevant four kinds of tap drains of shooting in advance, by dynamic menu Signal is converted to, while dynamic menu being designed into video monitoring apparatus computer program and (specifically designs and belongs to computer neck Domain).Middle control computer is signally attached to by four.When tap drain liquid level remains static, intelligent monitoring and controlling device is operated normally, when When analog signal occurs in tap drain molten iron level, intelligent monitoring and controlling device shows corresponding signal.In the section Example of the application, Signal can be respectively indicated as " A, B, C, D ", can add warning function, and such as when tap drain liquid level remains static, nothing is mentioned Show alarm signal；When analog signal occurs in tap drain liquid level, prompt alarm is issued, facilitates operator in time to iron storage type master Ditch is repaired.

It should be noted that as a kind of implementation, intelligent monitoring and controlling device in the embodiment of the present application can be according to setting Fixed image judges the state of molten iron level, and the state monitored is sent to middle control computer, operator with corresponding signal Signal is received by the display screen of middle control computer.Wherein, the setting and transmission of signal are the general technology of the art, this Apply to it without limitation.

According to monitoring result, the castable in main trough molten iron determined by above-mentioned blast furnace iron storage type tap drain erosion degree judgment method Liquid levels layer thickness and castable in main trough underlayer thickness determine method for repairing and mending.In the section Example of the application, method for repairing and mending packet It includes without stopping tap drain repairing, reinforcing tap drain monitoring, mid-term repairing is carried out to tap drain and stop tap drain and repair.

A kind of situation, no matter monitoring result, when castable in main trough molten iron level thickness degree and/or castable in main trough bottom When thickness degree is less than 150mm, it is serious to illustrate that tap drain corrodes, is both needed to stop tap drain to be repaired.

Other situations, monitoring result are that molten iron level is static or ripple, and castable in main trough molten iron level layer occurs in liquid level Thickness and castable in main trough underlayer thickness are all larger than equal to 150mm, do not need to stop tap drain to be repaired.Molten iron level is static or liquid There is ripple and illustrates that erosion is not serious in tap drain in face, and calculated result also illustrates that tap drain erosion is not serious.

In the section Example of the application, monitoring result is that molten iron level occurs emitting vacuole, and castable in main trough molten iron Liquid levels layer thickness and castable in main trough underlayer thickness are all larger than equal to 150mm, reinforce monitoring to tap drain.Molten iron level occurs emitting liquid Bubble, which illustrates that tap drain is interior, has erosion, but not serious, while calculated result indicates that tap drain erosion is not serious, therefore reinforces tap drain Monitoring is then repaired when erosion is further aggravated.

In the section Example of the application, monitoring result is that molten iron level bubbling band flame, and castable in main trough occurs Molten iron level thickness degree and castable in main trough underlayer thickness are all larger than equal to 150mm, carry out mid-term repairing to tap drain.Molten iron level There is bubbling band flame and illustrate that erosion degree is repaired in tap drain, but calculated result indicates that tap drain erosion is not serious, because This carries out mid-term repairing to tap drain without stopping tap drain.In this application, mid-term repairing does not need to use grinding tool, according in ditch Erosion condition sectional repair.As an implementation, mid-term repairing needs to be discharged molten iron in tap drain, but does not need to dig up Tap drain is original to pour the bed of material, is the reparation that the bed of material is poured to tap drain.

In the section Example of the application, when monitoring result is that molten iron level rolls, stops tap drain and repaired.When When molten iron level rolls, illustrate to corrode in tap drain seriously, at this time without the concern for castable in main trough molten iron level thickness degree With the calculated result of castable in main trough underlayer thickness, directly stops tap drain and repaired.

The blast furnace iron storage type tap drain method for repairing and mending that the application proposes is by molten iron level in the tap drain of monitoring device real-time monitoring State combined with the castable in main trough erosion degree being calculated, judge the erosion degree of tap drain jointly, and according to difference The case where the corresponding repairing treatment of carry out.This method compares existing micro-judgment more efficiently and accurately, so that operating personnel The erosion condition of tap drain can be learnt in time and is timely handled, iron storage type tap drain is avoided to burn initiation accident, guaranteed high The normal operation of furnace iron storage type tap drain.

The feature of the application and performance are described in further detail with reference to embodiments.