CN107557528A - A kind of molten steel temperature regulation and control method and its device - Google Patents

A kind of molten steel temperature regulation and control method and its device Download PDF

Info

Publication number
CN107557528A
CN107557528A CN201710751579.9A CN201710751579A CN107557528A CN 107557528 A CN107557528 A CN 107557528A CN 201710751579 A CN201710751579 A CN 201710751579A CN 107557528 A CN107557528 A CN 107557528A
Authority
CN
China
Prior art keywords
molten steel
temperature
regulation
power
steel temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710751579.9A
Other languages
Chinese (zh)
Other versions
CN107557528B (en
Inventor
贺爱娜
王新敏
岳士强
王安定
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Institute of Material Technology and Engineering of CAS
Original Assignee
Ningbo Institute of Material Technology and Engineering of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Institute of Material Technology and Engineering of CAS filed Critical Ningbo Institute of Material Technology and Engineering of CAS
Priority to CN201710751579.9A priority Critical patent/CN107557528B/en
Publication of CN107557528A publication Critical patent/CN107557528A/en
Application granted granted Critical
Publication of CN107557528B publication Critical patent/CN107557528B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention discloses a kind of regulation device of molten steel temperature, the regulation device is applied to vacuum drying oven, including displacement transducer, infrared temperature measurement apparatus, data processing controller and power governor.Also disclose a kind of method of molten steel temperature, this method can be used in vacuum drying oven melting or casting cycle, it is small or molten steel temperature T is constant by molten steel temperature fluctuating range in the mode production process of intelligent control power output, ensure the security of equipment and the performance of product.This method design is simple, is skillfully constructed, it is easy to realize molten steel temperature intelligent control.Device simple possible, it is practical.

Description

A kind of molten steel temperature regulation and control method and its device
Technical field
The invention belongs to vacuum induction melting furnace technical field, regulates and controls method and its dress more particularly to a kind of molten steel temperature Put.
Background technology
In metallurgy industry, vacuum induction melting is one of preferred melting technique, and vacuum induction melting is one kind true Using electromagnetic inductive heating principle come the process of molten alloy under empty condition.
In melting and casting cycle, temperature control is the CCP of relevant treatment technique, the direct shadow of molten steel temperature Ring the safety of the performance and equipment to alloy.Ensure the actual constituent and theoretical basic indifference, guarantee alloying component of alloy Fluctuating range is small etc. when uniformly, reaching target temperature is required for molten steel temperature.Accuracy controlling molten steel temperature can also effectively drop Low system energy consumption, improve economy.
In fusion process, target temperature is reached again from feed states to molten steel state is molten into, for certain mass Molten steel, temperature are changing, and power output can also change, therefore need power, control molten steel temperature;In casting cycle, molten steel Quality constantly reduce, molten steel temperature needs to keep constant, and power just needs to make change, also just needs intelligent control output work Rate, control molten steel temperature.
In the prior art, by thermocouple temperature measurement, then regulation manually, this simple using measurement data to enter trip temperature pre- The method of survey has obvious hysteresis quality, causes temperature fluctuation larger, has a strong impact on the safety of equipment and the performance of product.
Laiwu Iron & Steel Group Electronic Co., Ltd. discloses a kind of VD stoves with molten steel temperature control device and its control Method (CN 105779702A).The inhomogeneities of molten steel temperature distribution is adjusted by way of playpipe Argon, when temperature is less than After average water horizontal line, start the temperature of heating power adjustment molten steel.This device is only used in high temperature steel-making, and temperature mistake Height, can make the security of equipment cannot ensure, and can increase energy expenditure too much.This device is excessively complicated, there is also Molten steel temperature adjustment lags behind the situation of molten steel temperature decline.
Therefore, there is an urgent need to develop a kind of method and device of molten steel temperature intelligent control.
The content of the invention
The purpose of the present invention is to improve the problem of molten steel temperature fluctuation is too big in melting casting cycle, there is provided a kind of molten steel The regulation and control method and device of temperature.
The technical solution adopted by the present invention is as follows:
A kind of regulation device of molten steel temperature, the regulation device are applied to vacuum drying oven, including displacement transducer, infrared survey Warm device, data processing controller and power governor, infrared temperature measurement apparatus are fixed on earthenware with displacement transducer by support On crucible, it is connected by transmission line with the data processing controller input outside vacuum drying oven, the output end connection of data processing controller In power governor;
The infrared temperature measurement apparatus includes the temperature-measuring duct of one end insertion molten steel, the thermometric being connected with the temperature-measuring duct other end Instrument, the breather pipe being connected by temperature-measuring duct upper end air inlet, drive the drive device of temperature-measuring duct.
The present invention is in the top of molten steel setting infrared temperature measurement apparatus and displacement transducer, fusion process, infrared measurement of temperature dress Temperature feedback will be measured to data processing controller by putting, and be analyzed through Fast simulation, be regulated and controled power output by power governor, it is ensured that Molten steel temperature is within safe range and fluctuating range is small;In casting cycle, molten steel in the unit interval is measured by displacement transducer The temperature that the height and infrared temperature measurement apparatus that liquid level declines measure feeds back to data processing controller, is analyzed through Fast simulation, Can intelligent control power output, it is ensured that molten steel temperature remains constant.
Preferably, described displacement transducer selects high accuracy displacement sensor, and high sensitivity, feedback speed is fast, can be accurate Really measure the height that molten steel liquid level declines in the unit interval and feed back in time.
Infrared temperature measurement apparatus of the present invention, which is in, to be had in the vacuum drying oven of dense smoke, smog serious interference, using continuously being led to thermometric The method of pipe ventilation so that can pass through dense smoke in melting or casting cycle mid-infrared light beam signal, feed back to connection temperature measurer.
Preferably, the gas led in described breather pipe is inert gas, further preferably, from argon gas, ventilation pressure Power is 80~100mbar.Venting pressure causes greatly very much vacuum furnace pressure to reduce, and influences to smelt and cast state;Venting pressure It is too small, it is not easy that endotracheal smog will be protected to drain when flue gas is too dense, influences thermometric light path, so that test failure.
Temperature-measuring duct is in the presence of Long Time Thermal radiation, easily aging scaling loss, causes the reduction of thermometric accuracy rate, causes to survey Warm conduit is scrapped.Preferably, described temperature-measuring duct outer cover is equipped with cooling tube, temperature-measuring duct is dropped using cooling tube Temperature, extend the service life of temperature-measuring duct.
Preferably, described cooling tube is to be sleeved on the coil pipe outside temperature-measuring duct, and the pressure of cooling medium is 0.1 in pipe ~0.5Mpa, cooling medium are water.
Further preferably, described cooling tube is located at one end that temperature-measuring duct contacts with molten steel, and apart from molten steel liquid level with Upper 10~20mm.
Preferably, described cooling tube is from material that is corrosion-resistant, not reacted with molten steel, and further preferably, described is cold But the material of pipe is high temperature stainless steel.
Preferably, described temperature-measuring duct is further preferably, described from material that is corrosion-resistant, not reacted with molten steel The material of temperature-measuring duct is ceramics.
Preferably, a diameter of 10~50mm of described temperature-measuring duct.The diameter of temperature-measuring duct and the ventilation pressure of breather pipe Power matches, and the diameter of temperature-measuring duct is too small, then venting pressure is also too small;The diameter of temperature-measuring duct is excessive, then venting pressure It is excessive, while the size of the emission port according to temperature measurer, throughput can be saved by choosing the temperature-measuring duct of the diameter range.
Preferably, described drive device includes expansion link, and one end of expansion link is connected with temperature measurer, and the other end is with stretching Controller is connected, and expansion controller is fixed by support and crucible.
The height of molten steel liquid level can change in casting cycle, and described expansion controller can be according to molten steel liquid level Timely adjustable telescopic rod stretches, to ensure that temperature-measuring duct lower end can contact the liquid level of molten steel all the time.
Described temperature measurer from high accuracy, can accurately, the infrared radiation thermometer of continuous temperature measurement, temperature measurement accuracy is ± 1 DEG C, The infrared beam signal sent reaches molten steel back reflection by temperature-measuring duct and returns temperature measurer.Infrared radiation thermometer has Quick Acquisition letter Number, the ability of processing data, infrared radiation signal can be converted into corresponding electric signal output to data processing controller.
Described data processing controller is computer (PC), can be according to the temperature and displacement sensing that infrared temperature measurement apparatus measures The height that molten steel liquid level declines in the unit interval that device measures carries out Fast simulation calculating, and establishes database, calculates required Power output, it is compensated power, intelligent control power governor.
Present invention also offers a kind of regulation and control method that molten steel temperature is carried out using above-mentioned regulation device, including:
(1) in fusion process, the molten steel temperature data feedback measured infrared temperature measurement apparatus in real time by transmission line is extremely Data processing controller outside vacuum drying oven, data processing controller carry out analysis calculating to data, obtain power output, and pass through Power governor is regulated and controled;
(2) in casting cycle, the height that molten steel liquid level declines in the unit interval, infrared measurement of temperature dress are measured by displacement transducer The molten steel temperature measured in real time is put, by transmission line by the data processing controller outside the data feedback measured to vacuum drying oven, number Analysis calculating is carried out to data according to processing controller, obtains power output, and regulated and controled by power governor.
Fusion process:Melting starts, full power power transmission, it is necessary to power be adjusted, in this process after raw material all fusing Room temperature of the middle temperature by during melting is constant to changing to.
Fusion process total power consumption is equal to the heat sum that the heat of molten steel consumption and cooling water guide, and is addressed further under as list The total mark of power consumption is equal to the integration for the heat that molten steel needs to consume in the time of position and unit interval cooling water flow multiplies with temperature Long-pending integration sum.
Casting cycle:Molten steel temperature keeps constant, and as quality of molten steel declines, dynamic adjusts power output, power output Decline.
Casting cycle total power consumption is equal to the heat sum that the heat of molten steel consumption and cooling water guide, and is addressed further under as list The total mark of power consumption multiplies equal to the integration and unit interval cooling water flow and temperature of the heat that molten steel needs to consume in the time of position Long-pending integration and.
Preferably, in step (1), it is known that the gross mass and molten steel target temperature of molten steel, measured by infrared temperature measurement apparatus Molten steel temperature during a certain moment, it can calculate to be heated in the unit interval heat needed for target temperature with being cooled down in the unit interval The heat and value that water guides, power is compensated so as to obtain in the unit interval;Simulated again by finite element analysis software Power output is inscribed when amendment, establishing the database for including each composition smelting technology, and then this can be obtained, passes through power governor Real-time intelligent regulation and control are carried out to power output until reach target molten steel temperature, it is ensured that molten steel temperature is within safe range and ripple Dynamic amplitude is small;
Wherein, the heat that cooling water guides in the unit interval can be obtained by the Fitting Calculations such as the temperature of cooling water and flows.
Preferably, in step (2), the starting power output of casting molten steel is obtained after terminating from melting, according to displacement sensing The height that molten steel liquid level declines in the unit interval that device measures, is calculated the quality of remaining molten steel, and then learn the unit interval Interior remaining molten steel needs the heat consumed, the heat that cooling water guides in the bonding unit time, can be with the unit of account time Compensate power, the power output at the moment can be obtained, according to power output can by power regulator real-time monitoring power output, Make consumption as the heat of compensation, so that it is guaranteed that molten steel temperature is constant, realize intelligent control.
Compared with prior art, outstanding behaviours for it is following some:
(1) have a wide range of application, can be used in field of metallurgy various industries, being capable of intelligent control molten steel temperature;
(2) hysteresis quality of manual adjustment power is eliminated, instead of artificial, reduces librarian use rate during regulation power, The safety of personnel and equipment has been ensured, ensure that the performance of product;
(3) automaticity is high, and cost is relatively low, and application prospect is wide.
Brief description of the drawings
Fig. 1 is the schematic diagram of the regulation device of molten steel temperature of the present invention;
Fig. 2 is the enlarged diagram of infrared temperature measurement apparatus of the present invention;
Fig. 3 is the regulation process of data processor of the present invention.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with accompanying drawing, it should be pointed out that reality as described below Apply example to be intended to be easy to the understanding of the present invention, and do not play any restriction effect to it.
The reference of Fig. 1~2 is:1- displacement transducers, 2- infrared temperature measurement apparatus, 3- data processing controllers, 4- are passed Defeated line, 5- power governors, 6- molten steel, 7- cooling coils, 8- crucibles, 9- vacuum drying ovens.
201- expansion controllers, 202- expansion links, 203- temperature measurers, 204- breather pipes, 205- cooling tubes, 206- thermometrics are led Pipe.
Embodiment
As shown in figure 1, a kind of regulation device of molten steel temperature includes:Displacement transducer 1, infrared temperature measurement apparatus 2, at data Controller 3 and power governor 5 are managed, infrared temperature measurement apparatus 2 is fixed on crucible 8 with displacement transducer 1 by branch 10, by passing Defeated line 4 is connected with the input of data processing controller 3 outside vacuum drying oven 9, and the output end of data processing controller 3 is connected to power Adjuster 5;
As shown in Fig. 2 infrared temperature measurement apparatus 2 includes the temperature-measuring duct 206 of one end insertion molten steel 6, it is another with temperature-measuring duct 206 The connected temperature measurer 203 in one end, the breather pipe 204 being connected by the upper end air inlet of temperature-measuring duct 206, drives temperature-measuring duct 206 Drive device.
The precision of displacement transducer 1 is 1mm, feedback time 0.01s.
Temperature-measuring duct 206 selects high-purity high-quality earthenware, caliber 25mm.
The outer cover of temperature-measuring duct 206 is equipped with cooling tube 205, and cooling tube 205 is high temperature stainless steel coil pipe, and caliber isCooling water pressure is 0.3Mpa in pipe, the one end of cooling tube 205 around 15 circles immediately around in temperature-measuring duct 206, with survey The distance from bottom of warm conduit 206 is 20mm.
Breather pipe 204 selects super heated rubber pipe, and caliber specification isGuan Zhongtong argon gas, pressure 80mbar.
Described drive device includes expansion link 202, and one end of expansion link 202 is connected with temperature measurer 203, and the other end is with stretching Contracting controller 201 is connected, and expansion controller 201 is fixed by support 10 and crucible 8.Expansion link 202 selects stainless steel multiple axle Set.
Temperature measurer 203 is from the infrared radiation thermometer of high precision measuring temperature element, and trueness error is ± 1 DEG C, thermometric maximum range For 1600 DEG C.Infrared radiation thermometer has Quick Acquisition signal, the ability of processing data, can be converted into infrared radiation signal relatively The electric signal output answered is to data processing controller 3.
Data processing controller 3 is computer (PC), has quick analyzing and processing data, the characteristic of simulation, can establish number , can direct regulation and control power governor 5 according to storehouse.
As shown in figure 3, a kind of regulation and control method that molten steel temperature is carried out using above-mentioned regulation device, including:
(1) during smelting furnace, starting power output is P0, infrared temperature measurement apparatus 2 detects the temperature of molten steel 6 in real time, surveys The data processing controller 3 that the temperature of molten steel 6 is fed back to outside vacuum drying oven 9 by transmission line 4 is obtained, data processing controller 3 is to data Carry out analysis calculating, it is known that the gross mass M and molten steel target temperature T of molten steelm, a certain moment is measured by infrared temperature measurement apparatus 2 When molten steel temperature Ti, can calculate in the acquisition unit interval and be heated to target temperature TmRequired heat Q1With being cooled down in the unit interval The heat Q that water guides2And value ∑ Q1, wherein, the heat Q that cooling water guides in the unit interval2Can be by the temperature and stream of cooling water The Fitting Calculations such as amount are obtained, and power Δ P is compensated in the unit interval so as to obtain1.Carried out by ansys finite element analysis softwares Simulation amendment, the database of the correlates such as heat versus temperature-power is established by experimental data, when obtaining this with reference to database Inscribe power output Pm, real-time intelligent regulation and control are carried out to power output by power governor 5 until reaching target molten steel temperature Tm, it can be ensured that molten steel temperature is within safe range and fluctuating range is small or even stably.
(2) in casting cycle, starting power output is P1, infrared temperature measurement apparatus 2 detects the temperature of molten steel 6, position in real time Displacement sensor 1 measures the height that the liquid level of molten steel 6 in the unit interval declines, by transmission line 4 by the data feedback measured to vacuum Data processing controller 3 outside stove 9, data processing controller 3 carry out analysis calculating to data, obtain power output, and pass through Power governor 5 is regulated and controled.
In casting cycle, the starting power output P of casting molten steel is obtained after terminating from melting1, surveyed by displacement transducer 1 The height Δ h that the liquid level of molten steel 6 declines in the unit interval is obtained, data processing controller 3 is fed back to, so as to obtain the moment residue steel The quality of liquid, the heat Q for needing to consume by remaining molten steel in the unit of account time3The heat guided with cooling water in the unit interval Measure Q4And value ∑ Q2, so as to calculate the compensation power Δ P in the unit interval2, the power output P at the moment can be obtained2, root According to power output P2Consumption can be made as the heat of compensation by the real-time monitoring power output of power regulator 5, so that it is guaranteed that Molten steel temperature is constant, realizes intelligent control.This method design is simple, is skillfully constructed, it is easy to realize molten steel temperature intelligent control. Device simple possible, it is practical.

Claims (9)

1. a kind of regulation device of molten steel temperature, the regulation device is applied to vacuum drying oven, it is characterised in that including displacement sensing Device, infrared temperature measurement apparatus, data processing controller and power governor, infrared temperature measurement apparatus pass through support with displacement transducer Be fixed on crucible, be connected by transmission line with the data processing controller input outside vacuum drying oven, data processing controller it is defeated Go out end and be connected to power governor;
The infrared temperature measurement apparatus include one end insertion molten steel temperature-measuring duct, the temperature measurer being connected with the temperature-measuring duct other end, The breather pipe being connected by temperature-measuring duct upper end air inlet, drive the drive device of temperature-measuring duct.
2. the regulation device of molten steel temperature according to claim 1, it is characterised in that be set with outside described temperature-measuring duct There is cooling tube.
3. the regulation device of molten steel temperature according to claim 2, it is characterised in that described cooling tube is to be sleeved on survey Coil pipe outside warm conduit, the pressure of cooling medium is 0.1~0.5Mpa in pipe, and cooling medium is water.
4. the regulation device of molten steel temperature according to claim 1, it is characterised in that described temperature-measuring duct it is a diameter of 10~50mm.
5. the regulation device of molten steel temperature according to claim 1, it is characterised in that described drive device includes flexible Bar, one end of expansion link are connected with temperature measurer, and the other end is connected with expansion controller, and expansion controller is consolidated by support and crucible It is fixed.
6. the regulation device of molten steel temperature according to claim 1, it is characterised in that described data processing controller is Computer, the height that can be declined according to molten steel liquid level in the unit interval that the temperature and displacement transducer that infrared temperature measurement apparatus measures measure Degree carries out Fast simulation calculating, and establishes database, calculates required power output, is compensated power, controls power adjusting Device.
7. a kind of control device using described in any one of claim 1~6 carries out the regulation and control method of molten steel temperature, its feature exists In, the regulation and control method is applied to vacuum induction melting furnace, including:
(1) in fusion process, by transmission line by the molten steel temperature data feedback that infrared temperature measurement apparatus measures in real time to vacuum Data processing controller outside stove, data processing controller carry out analysis calculating to data, obtain power output, and pass through power Adjuster is regulated and controled;
(2) in casting cycle, the height that molten steel liquid level declines in the unit interval, infrared temperature measurement apparatus are measured by displacement transducer The molten steel temperature measured in real time, by transmission line by the data processing controller outside the data feedback measured to vacuum drying oven, data Processing controller carries out analysis calculating to data, obtains power output, and regulated and controled by power governor.
8. the regulation and control method of molten steel temperature according to claim 7, it is characterised in that in step (1), it is known that molten steel it is total Quality and molten steel target temperature, molten steel temperature when measuring a certain moment by infrared temperature measurement apparatus, can calculate in the unit interval The heat that is heated to needed for target temperature and the heat and value that cooling water guides in the unit interval, so as to obtain the unit interval Interior compensation power;Simulation amendment is carried out by finite element analysis software again, the database for including each composition smelting technology is established, enters And power output is inscribed when can obtain this, real-time intelligent regulation and control are carried out to power output by power governor until reaching target Molten steel temperature, it is ensured that molten steel temperature is within safe range and fluctuating range is small.
9. the regulation and control method of molten steel temperature according to claim 7, it is characterised in that in step (2), after melting terminates The starting power output of casting molten steel is obtained, the height that molten steel liquid level declines in the unit interval measured according to displacement transducer, The quality of remaining molten steel is calculated, and then learns that remaining molten steel needs the heat consumed, bonding unit time in the unit interval The heat that interior cooling water guides, the power output at the moment with the compensation power in the unit of account time, can be obtained, according to defeated Consumption can be made as the heat of compensation, so that it is guaranteed that molten steel temperature by power regulator real-time monitoring power output by going out power Spend constant, realize intelligent control.
CN201710751579.9A 2017-08-28 2017-08-28 A kind of molten steel temperature regulation method and device thereof Active CN107557528B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710751579.9A CN107557528B (en) 2017-08-28 2017-08-28 A kind of molten steel temperature regulation method and device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710751579.9A CN107557528B (en) 2017-08-28 2017-08-28 A kind of molten steel temperature regulation method and device thereof

Publications (2)

Publication Number Publication Date
CN107557528A true CN107557528A (en) 2018-01-09
CN107557528B CN107557528B (en) 2019-12-03

Family

ID=60976039

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710751579.9A Active CN107557528B (en) 2017-08-28 2017-08-28 A kind of molten steel temperature regulation method and device thereof

Country Status (1)

Country Link
CN (1) CN107557528B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111957911A (en) * 2020-08-21 2020-11-20 浙江英洛华磁业有限公司 Heat preservation power adjusting method during neodymium iron boron smelting and casting
CN111957911B (en) * 2020-08-21 2021-08-24 浙江英洛华磁业有限公司 Heat preservation power adjusting method during neodymium iron boron smelting and casting

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02190459A (en) * 1989-01-18 1990-07-26 Kawasaki Steel Corp Method for controlling temperature of molten metal in pot made of iron for molten metal
CN1045648A (en) * 1990-04-05 1990-09-26 冶金工业部钢铁研究总院 Steel liquid continuous detecting temperaturing device and method
CN101029848A (en) * 2007-01-29 2007-09-05 王健 Continuous temperature sensing method and apparatus for high-temperature liquid
JP3978090B2 (en) * 2002-06-21 2007-09-19 新日本製鐵株式会社 Hot water surface position detection method, computer program, and computer-readable storage medium
CN201102063Y (en) * 2007-08-03 2008-08-20 天瑞集团铸造有限公司 Cast steel pouring equipment at constant temperature
CN104451037A (en) * 2014-12-18 2015-03-25 马钢(集团)控股有限公司 Device and method for detecting temperature of RH refined liquid steel on line in real time
CN105195693A (en) * 2014-06-27 2015-12-30 佛山市中研非晶科技股份有限公司 Spraying device for amorphous strip
CN105369009A (en) * 2015-12-18 2016-03-02 北京科技大学 Temperature measuring system and method for on-line measurement of molten steel temperature in steelmaking process of electric-arc furnace
CN105779702A (en) * 2016-05-25 2016-07-20 莱芜钢铁集团电子有限公司 VD furnace with molten steel temperature control device and control method of VD furnace

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02190459A (en) * 1989-01-18 1990-07-26 Kawasaki Steel Corp Method for controlling temperature of molten metal in pot made of iron for molten metal
CN1045648A (en) * 1990-04-05 1990-09-26 冶金工业部钢铁研究总院 Steel liquid continuous detecting temperaturing device and method
JP3978090B2 (en) * 2002-06-21 2007-09-19 新日本製鐵株式会社 Hot water surface position detection method, computer program, and computer-readable storage medium
CN101029848A (en) * 2007-01-29 2007-09-05 王健 Continuous temperature sensing method and apparatus for high-temperature liquid
CN201102063Y (en) * 2007-08-03 2008-08-20 天瑞集团铸造有限公司 Cast steel pouring equipment at constant temperature
CN105195693A (en) * 2014-06-27 2015-12-30 佛山市中研非晶科技股份有限公司 Spraying device for amorphous strip
CN104451037A (en) * 2014-12-18 2015-03-25 马钢(集团)控股有限公司 Device and method for detecting temperature of RH refined liquid steel on line in real time
CN105369009A (en) * 2015-12-18 2016-03-02 北京科技大学 Temperature measuring system and method for on-line measurement of molten steel temperature in steelmaking process of electric-arc furnace
CN105779702A (en) * 2016-05-25 2016-07-20 莱芜钢铁集团电子有限公司 VD furnace with molten steel temperature control device and control method of VD furnace

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
唐伟: "水平连铸中间包等离子加热器控制方法的研究", 《中国优秀硕士学位论文全文数据库(工程科技Ⅰ辑)》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111957911A (en) * 2020-08-21 2020-11-20 浙江英洛华磁业有限公司 Heat preservation power adjusting method during neodymium iron boron smelting and casting
CN111957911B (en) * 2020-08-21 2021-08-24 浙江英洛华磁业有限公司 Heat preservation power adjusting method during neodymium iron boron smelting and casting

Also Published As

Publication number Publication date
CN107557528B (en) 2019-12-03

Similar Documents

Publication Publication Date Title
CN105546572B (en) A kind of vertical annealing furnace burning zone automatic temperature control system and its method
CN102886500B (en) Method and device for rapidly and accurately detecting and controlling baking temperature of ladle
CN104894362A (en) Method for setting temperature of heating furnace in cold and hot steel billet mixed loading
CN105445321B (en) The detection means of combustible material hot property under the conditions of a kind of programmable temperature control
CN107855509A (en) Temperature measurement on-line control device and method in ladle baking
CN102297451B (en) Method for regulating and controlling air-flowing environment of heating furnace
CN107557528A (en) A kind of molten steel temperature regulation and control method and its device
CN2474975Y (en) Multifunction high temperature experimental furnace
CN107858470A (en) The analog detecting method and device that a kind of burden distribution system influences on blast furnace melting with soft
CN104534895B (en) Device and method for measuring material temperature uniformity of heating furnace
CN111151367A (en) Coal mill and method for analyzing primary air volume thereof
CN107246914A (en) A kind of method and apparatus of on-line real time monitoring molten steel temperature
CN207581847U (en) The analoging detecting device that a kind of burden distribution system influences blast furnace melting with soft
CN206920025U (en) A kind of device of on-line real time monitoring molten steel temperature
CN202779637U (en) Device for quickly and precisely detecting and controlling baking temperature of steel ladle
CN104807522A (en) High-temperature gas flow rate measuring standard device and detection method thereof
CN106556149B (en) Multiple branch circuit multi-burner heating furnace branch balance control method and system
CN2490167Y (en) Dew-point detecting device of continuous annealing furnace
CN104503510A (en) Temperature synchronizing system and method used for metallurgic performance measuring device
CN106766943B (en) A kind of vertical cooling furnace apparatus of sinter and cooling means
CN107450622A (en) Furnace temperature of heating furnace intelligence control system and control method
CN107092187A (en) A kind of temperature control equipment and temprature control method
CN108165690A (en) A kind of blast furnace material valve control method
CN202648454U (en) Furnace temperature constant control equipment of metal smelting furnace
CN212856142U (en) Coal mill

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant