CN203904385U

CN203904385U - Device utilizing air brick of converter to realize continuous temperature measurement of molten pool of converter

Info

Publication number: CN203904385U
Application number: CN201420228263.3U
Authority: CN
Inventors: 李炳一; 钟国庆; 刘晓明
Original assignee: Tianjin Iron and Steel Group Co Ltd
Current assignee: Tianjin Iron and Steel Group Co Ltd
Priority date: 2014-05-06
Filing date: 2014-05-06
Publication date: 2014-10-29
Anticipated expiration: 2024-05-06

Abstract

The utility model relates to a device utilizing an air brick of a converter to realize continuous temperature measurement of a molten pool of the converter. The device comprises an air brick movably mounted on a brick cup, wherein a through hole is formed in the middle of the air brick, penetrates the brick cup and then extends to the outer side of a furnace shell; fire clay is arranged between the fed-through through hole and the furnace shell; the hole extending to the outer side of the furnace shell is connected with a pipeline on the outer side of the furnace shell; the pipeline is connected with an argon gas hose; an opening is formed in the joint of the pipeline and the argon gas hose; an infrared temperature measuring probe is arranged at the opening and connected with a signal processor; the signal processor is connected with a main-control computer. According to the utility model, the infrared temperature measuring probe is used for acquiring a radiation signal sent by molten steel in the molten pool in a non-contact manner, the temperature of molten steel in the molten pool of the converter can be measured in real time, a temperature control foundation is provided for operators, the one-step turning-down temperature hit ratio of the converter is greatly increased, reblow operation is omitted and the steel cleanliness is remarkably improved.

Description

A kind of device that utilizes converter air brick to realize converter molten pool continuous temperature measurement

Technical field

The utility model belongs to converter molten pool temperature measurement technology field, particularly a kind of device that utilizes converter air brick to realize converter molten pool continuous temperature measurement.

Background technology

Suitable bath temperature is the most important condition of converter steelmaking reaction, and bath temperature can produce directly impact to smelting operation.After process temperature is controlled when too high, easily caused Converter, tapping temperature is too high, and converter dephosphorization difficulty increases, and reduces the once hit rate of falling stove; Total oxygen content increase causes deoxidation to be mingled with content to be increased, and affect slab quality, makes iron and steel stock consumption increase, alloy recovery reduce, reduce furnace life, increases fettling number of times and reduction ladle work-ing life.If continuous casting steel excess Temperature is directly gone up in converter, even there is continuous casting casting bleed-out, make casting machine stop watering, being unfavorable for the reduction of production cost.When the unstable fluctuated or process temperature of molten steel process temperature is too high or too low, can directly have influence on slagging speed and the decarbonization rate in molten bath, very easily cause splash, increase the blow loss of iron, cause molten steel to be difficult to reach tapping condition, increase iron and steel stock consumption.

Current technology, when converter molten pool temperature survey, can not realize true, continuous temperature measurement, therefore can not stablize bath temperature and the converter terminal temperature of controlling smelting process, thereby realizes quick, stably manufactured.

Summary of the invention

The utility model provides a kind of device that utilizes converter air brick to realize converter molten pool continuous temperature measurement for solving the technical problem existing in known technology, and this device can be realized true, the continuous temperature measurement of converter molten pool.

The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:

A kind of device that utilizes converter air brick to realize converter molten pool continuous temperature measurement, comprise the gas permeable brick being movably installed on brick cup, the middle part of described gas permeable brick is provided with through hole, described through hole extends to furnace shell outside through brick cup, between the through hole of described perforation and furnace shell, be provided with refractory mortar, the described hole connecting pipeline outside furnace shell that extends to furnace shell outside, described pipeline and argon gas are hose connection, described pipeline is being provided with opening with the hose connection place of argon gas, described opening part is provided with infrared temperature probe, described infrared temperature probe is connected with signal processor, described signal processor is connected with main control computer.

Advantage and the positively effect that the utlity model has are: the utility model is simple in structure, Non-contact Infrared Temperature Measurement probe can be arranged on the bottom of any gas permeable brick of converter, and do not affect the ventilative mixing effect of gas permeable brick, with cordless, use infrared temperature probe to gather the radiation signal that in molten bath, molten steel sends, can measure in real time converter molten pool liquid steel temperature, provide temperature to control basis to behaviour's rifle workman, make converter reach the once object of the tapping of falling stove, and reduced the refining heat treated time, reduced refining cost.

Accompanying drawing explanation

Fig. 1 is the utility model mounting structure schematic diagram;

In Fig. 1,1. gas permeable brick, 2. brick cup, 3. converter shell, 4. refractory mortar, 5. infrared temperature probe, 6. argon gas flexible pipe, 7. signal processor, 8. main control computer.

Embodiment:

For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1, a kind of device that utilizes converter air brick to realize converter molten pool continuous temperature measurement, comprise the gas permeable brick 1 being movably installed on brick cup 2, the middle part of gas permeable brick 1 is provided with through hole, through hole extends to furnace shell 3 outsides through brick cup 2, between the through hole connecting and furnace shell 3, be provided with refractory mortar, extend to the hole in furnace shell 3 outsides at furnace shell 3 outside connecting pipelines, pipeline is connected with argon gas flexible pipe 6, pipeline is being provided with opening with argon gas flexible pipe 6 junctions, opening part is provided with infrared temperature probe 5, infrared temperature probe 5 is connected with signal processor 7, signal processor 7 is connected with main control computer 8.

In the utility model, Non-contact Infrared Temperature Measurement probe 5 can be arranged on the bottom of any gas permeable brick 1 of converter, and do not affect the ventilative mixing effect of gas permeable brick 1, in Argon, complete the measurement to steel temperature at night in molten bath, by use infrared temperature probe 5 to gather the radiation signal that in molten bath, molten steel sends with cordless, and electrical signal corresponding to this signal change into and export to signal processor 7, signal processor 7 carries out data processing by the signal of collecting, and through calculating actual temperature, then signal processor 7 is sent to main control computer 8 molten bath actual temperature, offer converter behaviour rifle metal worker, behaviour's rifle workman determines the blanking of oneself and the smelting operation of rifle position according to bath temperature again, provide temperature to control basis to behaviour's rifle work.

The utility model is measured in real time molten bath liquid steel temperature at bottom-blowing of converter argon position in converter steelmaking process, according to this point measurement actual temperature and desirable smelting temperature, compare, when there is deviation in actual temperature and ideal temperature, by adjusting converter blanking and smelting rifle position, regulate bath temperature, reach desirable smelting and control temperature.

Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, and those of ordinary skill in the field should be appreciated that still and can modify or part technical characterictic is equal to replacement the embodiment of utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the technology that the utility model is asked for protection.

Claims

1. a device that utilizes converter air brick to realize converter molten pool continuous temperature measurement, comprise the gas permeable brick (1) being movably installed on brick cup (2), the middle part of described gas permeable brick (1) is provided with through hole, described through hole extends to furnace shell (3) outside through brick cup (2), the through hole of described perforation and furnace shell are provided with refractory mortar between (3), the described hole that extends to furnace shell (3) outside is at furnace shell (3) outside connecting pipeline, described pipeline is connected with argon gas flexible pipe (6), it is characterized in that, described pipeline is being provided with opening with argon gas flexible pipe (6) junction, described opening part is provided with infrared temperature probe (5), described infrared temperature probe (5) is connected with signal processor (7), described signal processor (7) is connected with main control computer (8).