CN213924901U - Refining system for accurately controlling temperature and components of molten steel - Google Patents
Refining system for accurately controlling temperature and components of molten steel Download PDFInfo
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- CN213924901U CN213924901U CN202022815661.3U CN202022815661U CN213924901U CN 213924901 U CN213924901 U CN 213924901U CN 202022815661 U CN202022815661 U CN 202022815661U CN 213924901 U CN213924901 U CN 213924901U
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Abstract
The utility model relates to a smelt technical field, especially, relate to a refining system of accurate control molten steel temperature, composition, it includes that the steel scrap adds the feed bin, the storehouse is added to the alloy, steel scrap electronic scale feed bin, alloy electronic scale feed bin, the ladle, argon blowing device, temperature measuring device and sample detection device, the steel scrap adds the feed bin, the storehouse is added to the alloy, vibratory feeder is all installed to the discharge gate department of steel scrap electronic scale feed bin and alloy electronic scale feed bin, the ladle is located the below of steel scrap chute and alloy chute discharge gate, the ladle middle part is equipped with the argon blowing fast-assembling joint, install flow control valve on the argon gas pipeline, temperature measuring device includes automatic telescopic temperature measurement pole and temperature sensor, sample detection device includes automatic telescopic sample pole, a sampling section of thick bamboo and check out test set. The system provided by the utility model can realize blowing argon automatic control, and automatic adjustment and even the joining after scrap steel, alloy addition are measured according to temperature and composition.
Description
Technical Field
The utility model relates to a smelt technical field, especially relate to a refining system of accurate control molten steel temperature, composition.
Background
In the converter steelmaking smelting technology, due to the influence of a plurality of factors such as molten iron temperature, components, scrap steel amount, smelting solvent amount, slag making materials and the like, certain deviation between the converter smelting end point molten steel temperature and the expected temperature can be caused; when the converter steel is alloyed, the chemical components of the molten steel deviate from the target values due to the instability of the steel tapping amount and the alloy adding amount. Therefore, the temperature of the molten steel and the chemical components need to be adjusted and finely adjusted in the process of blowing argon to refine the molten steel in the ladle, so that the required molten steel temperature and chemical components are achieved, and the production of a casting machine and the quality of a casting blank are ensured; the argon blowing refining of the molten steel aims at homogenizing the temperature and the components of the molten steel, floating impurities in the steel and purifying the molten steel. At present, when molten steel is blown with argon, the flow of argon and the argon blowing time are manually adjusted, the flow and time are inaccurately controlled, and the argon blowing effect is poor; the electromagnetic chuck is manually operated to add the temperature-adjusting steel scraps into the molten steel, the steel scraps are not metered, the quantity addition is inaccurate, the temperature control deviation is large, the steel scraps are added in a concentrated manner at one time, the quantity is concentrated, the melting speed is low, the steel scraps are easy to sink into the bottom of a steel ladle, and the temperature of the molten steel at the bottom is low, so that the continuous casting production large ladle is difficult to open and pour, and accidents are caused; manually fine-adjusting the alloy by using the addition component, the alloy is not metered, the deviation of the entering quantity is large, the fluctuation of the chemical components of the molten steel is large, and the product quality is unstable.
The prior art scheme has the following defects:
the argon blowing control method has the advantages that due to the fact that the argon flow valve is adjusted manually, argon blowing flow is inaccurate, and argon blowing effect is poor;
the amount of the waste steel adsorbed by the magnetic disk every time is difficult to control, so that the adding amount of the waste steel is not accurate enough; the adding of the scrap steel is too concentrated, the quantity and the volume of the scrap steel added at one time are large, the melting speed is slow, and the scrap steel sinks into the bottom of the steel ladle, so that the temperature of molten steel at the bottom is low, and the temperature of the molten steel in the steel ladle is uneven; the problems of unsmooth pouring of a continuous casting ladle and hole burning of the ladle are easily caused, and the steel penetration accident of a ladle nozzle is caused.
And thirdly, the components are manually and finely adjusted, so that the alloy addition error is large, and components are unqualified sometimes.
And labor intensity of manual operation is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an argon blowing automatic control is provided, the refining system of an accurate control molten steel temperature, composition that automatic adjustment and evenly add after the actual measurement of temperature and composition are according to scrap steel, alloy addition.
The utility model discloses a realize through following technical scheme:
a refining system for accurately controlling the temperature and the components of molten steel comprises a waste steel feeding bin, an alloy feeding bin, a waste steel electronic scale bin, an alloy electronic scale bin, a steel ladle, an argon blowing device, a temperature measuring device and a sampling detection device, wherein the waste steel electronic scale bin is arranged below the waste steel feeding bin, a feeding port of the waste steel electronic scale bin is communicated with a discharging port of the waste steel feeding bin, the alloy electronic scale bin is arranged below the alloy feeding bin, a feeding port of the alloy electronic scale bin is communicated with a discharging port of the alloy feeding bin, vibratory feeders are respectively arranged at the positions of the waste steel feeding bin, the alloy feeding bin, the waste steel electronic scale bin and a discharging port of the alloy electronic scale bin, a waste steel chute is fixedly arranged below the vibratory feeder of the waste steel electronic scale bin, an alloy chute is fixedly arranged below the vibratory feeder of the alloy electronic scale bin, and a waste steel electronic scale is arranged in the waste steel electronic scale bin, alloy electronic scale is installed to alloy electronic scale feed bin, the ladle is located the below of scrap steel chute and alloy chute discharge gate, and the ladle middle part is equipped with the argon blowing quick-operation joint, the argon blowing device includes argon gas jar, connects in argon gas jar and argon blowing argon gas pipeline between the quick-operation joint, install flow control valve on the argon gas pipeline, temperature measuring device includes automatic telescopic temperature measurement pole and installs the temperature sensor on automatic telescopic temperature measurement pole, and sampling test device includes automatic telescopic sampling rod, installs sampling tube and check out test set on automatic telescopic sampling rod.
Further, a refining system of accurate control molten steel temperature, composition, it still includes PLC, and PLC's input is connected with temperature sensor's output, check out test set's output respectively, and PLC's output is connected and flow control valve is connected with steel scrap electronic scale, alloy electronic scale, steel scrap electronic scale feed bin vibratory feeder, alloy electronic scale feed bin vibratory feeder respectively.
Further, the refining system capable of accurately controlling the temperature and the components of the molten steel further comprises a display, wherein the display is connected with the PLC and used for displaying the scrap steel weighing times, the scrap steel adding amount, the alloy weighing times, the alloy adding amount, the molten steel set component content value, the molten steel analysis component content value, the argon blowing time, the argon blowing amount, the molten steel actual measurement temperature, the expected temperature and alarm information.
The beneficial effects of the utility model
The utility model provides a pair of concise method and system of accurate control molten steel temperature, composition has following beneficial effect:
(1) the utility model realizes the automatic control of the argon blowing time and flow of the molten steel;
the utility model realizes the accurate control of the adding amount of the molten steel temperature-adjusting scrap steel, and the scrap steel adding process is automatically controlled and uniformly added;
(3) the utility model realizes the accurate control of the adding amount of the fine-tuning alloy of the chemical components of the molten steel, and the alloy adding process is automatically controlled and is uniformly added;
the utility model discloses make the molten steel refining effect better, inclusion can fully come up, the molten steel cleanliness factor is higher; molten steel temperature and component control are more accurate;
the utility model discloses saved manual operation and blown argon, artifical temperature measurement, manual operation scrap steel and poured into, reduced manual operation, alleviateed intensity of labour.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a block diagram of the control system of the present invention;
in the figure, 1, a steel scrap feeding bin, 2, an alloy feeding bin, 3, a sampling cylinder, 4, a temperature sensor, 5, a steel scrap electronic scale bin, 6, an alloy electronic scale bin, 7, a steel scrap electronic scale bin vibration feeder, 8, an alloy electronic scale bin vibration feeder, 9, a steel scrap electronic scale, 10, an alloy electronic scale, 11, a steel scrap chute, 12, an alloy chute, 13, an automatic telescopic sampling rod, 14, an automatic telescopic temperature measuring rod, 15, an argon gas tank, 16, a steel ladle, 17, a flow regulating valve, 18, an argon gas pipeline, 19, an argon blowing quick connector and 20 detection equipment are arranged.
Detailed Description
A refining system for accurately controlling the temperature and the components of molten steel comprises a scrap steel feeding bin 1, an alloy feeding bin 2, a scrap steel electronic scale bin 5, an alloy electronic scale bin 6, a steel ladle 16, an argon blowing device, a temperature measuring device and a sampling detection device.
The utility model discloses a steel scrap electronic scale feed bin, alloy electronic scale feed bin and alloy electronic scale feed bin, steel scrap electronic scale feed bin and alloy electronic scale feed bin, alloy electronic scale feed bin and alloy electronic scale feed bin's discharge gate department all install vibratory feeder, and steel scrap electronic scale feed bin vibratory feeder 7's below fixed mounting has steel scrap chute 11, and alloy electronic scale feed bin vibratory feeder 8's below fixed mounting has alloy chute 12, steel scrap electronic scale 9 is installed to steel scrap electronic scale feed bin, and alloy electronic scale feed bin installs alloy electronic scale 10, can realize the automatic weighing and the continuous even joining of alloy and the steel scrap that adjusts the temperature.
The ladle is located the below of steel scrap chute and alloy chute discharge gate, and the ladle middle part is equipped with argon blowing quick-operation joint 19, and the argon blowing quick-operation joint makes things convenient for the ladle to move to the refining position after, quick and argon gas pipeline intercommunication carries out convenient automatic argon blowing operation.
The argon blowing device comprises an argon gas tank 15, an argon gas pipeline 18 connected between the argon gas tank and the argon blowing quick coupler, a flow regulating valve 17 is installed on the argon gas pipeline, the setting of the flow regulating valve is convenient, and the argon blowing amount is regulated according to the opening degree of a set curve regulating valve.
The temperature measuring device comprises an automatic telescopic temperature measuring rod 14 and a temperature sensor 4 arranged on the automatic telescopic temperature measuring rod, and can automatically measure the temperature of the molten steel in the ladle according to set time and frequency so as to accurately control the temperature-adjusting waste steel amount required to be added.
The sampling detection device comprises an automatic telescopic sampling rod 13, a sampling cylinder 3 and a detection device 20, wherein the sampling cylinder 3 and the detection device are installed on the automatic telescopic sampling rod, and the components of molten steel in a steel ladle can be automatically measured according to set time and frequency so as to accurately control the amount of alloy required to be added, and then an automatic scrap steel weighing system is controlled to automatically weigh and continuously and uniformly add the molten steel through a vibration feeding device.
Further, the refining system for accurately controlling the temperature and the components of the molten steel further comprises a PLC, wherein the input end of the PLC is respectively connected with the output end of the temperature sensor and the output end of the detection device, the output end of the PLC is respectively connected with the waste steel electronic scale, the alloy electronic scale, the waste steel electronic scale bin vibratory feeder, the alloy electronic scale bin vibratory feeder and the flow regulating valve, the PLC can calculate the temperature-regulating waste steel amount required to be added according to the received temperature sensor information, then controlling the scrap electronic scale to automatically weigh, continuously and uniformly adding temperature-adjusting scrap steel into the ladle by a scrap electronic scale bin vibratory feeder, calculating the required alloy amount by the PLC according to the received component information output by the detection equipment, and then controlling the alloy electronic scale to automatically weigh, and continuously and uniformly adding the alloy into the steel ladle by using a vibration feeder of a bin of the alloy electronic scale.
Further, the refining system capable of accurately controlling the temperature and the components of the molten steel further comprises a display, wherein the display is connected with the PLC and used for displaying the scrap steel weighing times, the scrap steel adding amount, the alloy weighing times, the alloy adding amount, the molten steel set component content value, the molten steel analysis component content value, the argon blowing time, the argon blowing amount, the molten steel actual measurement temperature, the expected temperature and alarm information, so that related personnel can know related information more directly, and when equipment breaks down, the related information can be processed in time.
Wherein the addition amount of the temperature-adjusting scrap steel can be calculated according to the following formula:
the amount of scrap steel required for temperature drop per degree c (kg/c) is multiplied by the measured temperature-set temperature (c).
Wherein the alloy addition can be calculated according to the following formula:
the alloy addition amount (kg) ═ analytical component content (%) -set component content (%) × molten steel amount (kg) ÷ (alloy element content × element yield).
Further, information such as molten steel temperature, molten steel assay analysis components, scrap steel addition amount and alloy addition amount which are automatically acquired by the system can be displayed on the display system, and operators can know related information more intuitively.
The utility model provides a pair of refining system of accurate control molten steel temperature, composition, full molten steel ladle is filled greatly and is reachd the refining position after, and the operating personnel blows argon quick-operation articulate back on with argon gas pipeline and the ladle, gives and blows the argon instruction, and flow control valve opens and blows in the argon gas according to the settlement curve in to the ladle.
The automatic telescopic temperature measuring rod of the temperature measuring device drives the temperature sensor to stretch into the steel ladle from the temperature measuring sampling port of the steel ladle for measuring the temperature according to the set time, the measured value is transmitted to the PLC, the PLC calculates the temperature-adjusting addition amount of the scrap steel to be added according to the measured temperature value and the set temperature value, and then the scrap steel electronic scale is controlled to automatically weigh and continuously and uniformly feed the scrap steel by the scrap steel electronic scale bin vibration feeder.
The automatic telescopic thief rod of sample detection device drives the sampling cylinder according to the setting-up time and stretches into the ladle inside from the temperature measurement thief hatch of ladle and take a sample to send the sample to check out test set and detect, check out test set detects the back and gives PLC with sample composition numerical value transfer, PLC calculates required alloy addition according to sample composition numerical value and setting for composition numerical value, then control alloy sub-balance automatic weighing back and by the continuous even feed of alloy electronic scale feed bin vibratory feeder.
And when the argon blowing ending time is reached, the system automatically measures the temperature again and takes a chemical analysis sample, checks whether the preset temperature and component control range is reached, the preset target value allowable deviation range is reached, the molten steel refining is ended, and if the deviation still exists, the system is properly finely adjusted according to the steps.
The utility model discloses saved manual operation and blown argon, artifical temperature measurement, manual operation steel scrap and poured into, not only realized that the molten steel blows argon time, flow automatic control, realized the accurate control of molten steel tempering steel scrap addition and alloy moreover, the joining process automatic control and the even joining of steel scrap and alloy make the concise effect of molten steel better, and the inclusion can fully come up, and the molten steel cleanliness factor is higher.
To sum up, the utility model provides a pair of refining system of accurate control molten steel temperature, composition realizes blowing argon, finely tune the composition alloy and adds, adjusts the temperature scrap steel and adds automatic control, and addition volume control is more accurate and guarantee even the joining, makes molten steel temperature, composition control more even, accurate, and inclusion material obtains abundant come-up in the steel, has promoted the molten steel quality greatly.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A refining system for accurately controlling the temperature and the components of molten steel is characterized by comprising a steel scrap feeding bin, an alloy feeding bin, a steel scrap electronic scale bin, an alloy electronic scale bin, a steel ladle, an argon blowing device, a temperature measuring device and a sampling detection device, wherein the steel scrap electronic scale bin is arranged below the steel scrap feeding bin, a feeding port of the steel scrap electronic scale bin is communicated with a discharging port of the steel scrap feeding bin, the alloy electronic scale bin is arranged below the alloy feeding bin, a feeding port of the alloy electronic scale bin is communicated with a discharging port of the alloy feeding bin, vibrating chutes are respectively arranged at the steel scrap feeding bin, the alloy feeding bin, the steel scrap electronic scale bin and a discharging port of the alloy electronic scale bin, a steel scrap chute is fixedly arranged below the steel scrap electronic scale bin vibrating feeder, an alloy chute is fixedly arranged below the alloy electronic scale bin vibrating feeder, and a steel electronic scale is arranged in the steel bin, alloy electronic scale is installed to alloy electronic scale feed bin, the ladle is located the below of scrap steel chute and alloy chute discharge gate, and the ladle middle part is equipped with the argon blowing quick-operation joint, the argon blowing device includes argon gas jar, connects in argon gas jar and argon blowing argon gas pipeline between the quick-operation joint, install flow control valve on the argon gas pipeline, temperature measuring device includes automatic telescopic temperature measurement pole and installs the temperature sensor on automatic telescopic temperature measurement pole, and sampling test device includes automatic telescopic sampling rod, installs sampling tube and check out test set on automatic telescopic sampling rod.
2. The refining system of claim 1, further comprising a PLC, wherein an input terminal of the PLC is connected to an output terminal of the temperature sensor and an output terminal of the detecting device, respectively, and an output terminal of the PLC is connected to the steel scrap electronic scale, the alloy electronic scale, the steel scrap electronic scale bin vibratory feeder, the alloy electronic scale bin vibratory feeder, and the flow control valve, respectively.
3. The refining system for accurately controlling the temperature and the components of the molten steel according to claim 2, further comprising a display, wherein the display is connected with the PLC and used for displaying the scrap steel weighing times, the scrap steel adding amount, the alloy weighing times, the alloy adding amount, the molten steel set component content value, the molten steel analysis component content value, the argon blowing time, the argon blowing amount, the measured temperature of the molten steel, the expected temperature and alarm information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022815661.3U CN213924901U (en) | 2020-11-30 | 2020-11-30 | Refining system for accurately controlling temperature and components of molten steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022815661.3U CN213924901U (en) | 2020-11-30 | 2020-11-30 | Refining system for accurately controlling temperature and components of molten steel |
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| CN213924901U true CN213924901U (en) | 2021-08-10 |
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| CN202022815661.3U Active CN213924901U (en) | 2020-11-30 | 2020-11-30 | Refining system for accurately controlling temperature and components of molten steel |
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