CN109536672A - A kind of LF furnace ladle refining furnace automatic Steelmaking method - Google Patents
A kind of LF furnace ladle refining furnace automatic Steelmaking method Download PDFInfo
- Publication number
- CN109536672A CN109536672A CN201910007999.5A CN201910007999A CN109536672A CN 109536672 A CN109536672 A CN 109536672A CN 201910007999 A CN201910007999 A CN 201910007999A CN 109536672 A CN109536672 A CN 109536672A
- Authority
- CN
- China
- Prior art keywords
- control system
- computer control
- ladle
- automatic
- furnace
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
Abstract
The invention discloses a kind of LF furnace ladle refining furnace automatic Steelmaking methods, the method is specific as follows: the first step, the automatic Argon pipe device of unloading of installation, second step, establish automatic steelmaking system, third step, start to make steel, (1) computer control system links with buggy ladle is opened, (2) computer control system and drop water cooled cover linkage, (3) computer control system and bottom blowing valve switch link, (4) computer control system and thermometric sampler link, (5) computer control system and power transmission slagging device link, (6) computer control system and automatic feeding device link, (7) computer control system and power transmission temperature-raising device link, (8) outbound, LF furnace ladle refining furnace automatic Steelmaking method of the invention；LF furnace is presetting using parameter and system automatically controls, and realizes automatic steel-making.
Description
Technical field
The present invention relates to a kind of refining furnace method for making steel, and in particular to a kind of LF furnace ladle refining furnace automatic Steelmaking side
Method belongs to refining furnace method for making steel technical field.
Background technique
Ladle refining furnace, i.e. LF furnace (LADLEFURNACE) are main external refining equipment in steel production, its master
Wanting task is: 1. 2. 3. 4. accurate trimming improves Molten Steel Cleanliness 5. slag making for temperature adjusting for desulfurization；Existing refining furnace
Type is relatively more, such as Chinese Patent Application No.: 201010235551.8, disclose steelmaking method of ladle refining furnace, step are as follows:
(1) water is just made steel in converter be transported in ladle refining furnace, starts power transmission in refining station and heats and add latter section of synthetic slag
The ratio of 0.25 ~ 0.5kg was added according to molten steel per ton, is added at one time multiple-effect refining agent time；Under multiple-effect refining agent is by containing
The component for stating weight percent is prepared: CaC2-45 ~ 70%, SiC-5 ~ 20%, Al-5 ~ 15% and sustained release agent 10 ~ 20%；(2) root
Residue adjustment is carried out according to change of slag situation；It is added every time according to the ratio that 0.05 ~ 0.20kg is added in molten steel per ton；(3) in ladle essence
Furnace refines 5 ~ 10 minutes before terminating, and aluminium vanadine or the CaSi powder break of 4 ~ 15kg/ furnace is added.Method of the invention, group
Ca, Al, Si, C element all have stronger deoxidizing capacity in point, are able to satisfy the deoxidation of clinker fast deep and spread to molten steel de-
The requirement of oxygen；Deoxidant element product can form white slag mine phase with synthetic slag component, be conducive to molten steel desulfurizing and removal of inclusions；Subtract
Few molten steel increases [N], [H] content in refining process, reduces consumption and cost；But the existing each process of refining furnace is required to
To think to participate in, such as, starts buggy ladle disengaging refining position and need manual control, furnace cover lifting is manual control, the voltage of power transmission power,
Electric current needs manual control, and alloy addition manually calculates and ladle and bottom blowing flow, pressure manual's adjustment is added by charging sequence
Deng.
Summary of the invention
To solve the above problems, realizing LF the invention proposes a kind of LF furnace ladle refining furnace automatic Steelmaking method
The realizations such as ladle refining furnace buggy ladle starts, furnace cover lifting, rise fall of electrodes, power adjustment, bottom blowing adjustment, material alloying automation
The steel-making of one key.
LF furnace ladle refining furnace automatic Steelmaking method of the invention, the method are specific as follows:
The first step, installation automatic unload Argon pipe device, including ladle trolley, the ladle trolley are arranged far from steel slag tank side
There is mounting seat；Argon guiding device is installed above the mounting seat；Argon guiding device is mounted remotely from steel slag tank one
On the ladle trolley of side, the injury for collecting slag on steel vehicle is avoided；Argon guiding device air inlet pipe is additionally provided on the ladle trolley
Line, described Argon guiding device admission line one end are connect by threeway with argon gas main pipe rail on ladle trolley, and the other end enters
Mounting seat is interior and is connected to the installation of Argon guiding device；Ladle mounting is provided on the ladle trolley；The ladle mounting
Two sides are provided with block；The block vertical direction is provided with guide portion；Between the block and ladle mounting between horizontal direction
Gap value is 30mm；Ladle seat shakes larger when entering trolley, be unfavorable for the reliable docking of Argon guiding device, by ladle mounting
Be transformed, by its guide portion of block to ladle have vertical direction guiding function and reduce horizontal direction gap width by
100mm is reduced to 30mm effect, and ladle can be made to can smoothly enter into trolley and the fashionable generation of seat is avoided acutely to shake and influence Argon
Guiding device normally docks；
Second step establishes automatic steelmaking system, each respond module is linked into computer control system, and control in computer
Automatic steel-making start button and respond module initial value setting interface and ACK button are established in system；
Third step starts to make steel, and clicks automatic steel-making start button, executes automatic Steelmaking；
(1) computer control system is opened with buggy ladle linkage, computer control system control buggy ladle is opened to refining position, refines position
Signal lamp lights, and buggy ladle stops；
(2) computer control system and drop water cooled cover linkage, refining position signal lamp light, computer control system control delay
After 3 seconds, water cooled cover landing sets bell fall time 1.5S；
(3) bottom blowing is opened, computer control system and bottom blowing valve switch link, and refining position signal lights, computer control system
It controls bottom blowing valve switch to open, conversion is to normally blowing after bypassing opening time 15S；
(4) computer control system and thermometric sampler link, and computer control system controls thermometric manipulator or mechanical arm
Movement drives manipulator or mechanical arm temperature sensor to carry out temperature acquisition sampling；And data are sent to computer control system；
(5) computer control system and power transmission slagging device link, multiple electric currents and voltage gear built in computer control system；
Interface is set by respond module initial value and ACK button selects a certain gear, after clicking button, enters automatic steel-making system
In system, computer control system is waited to execute automatic power transmission；First electric power feeding time is set 4 minutes；
(6) computer control system and automatic feeding device link, and set interface and ACK button by respond module initial value
The target value of different steel grades is set, level two is spread out of after furnace ingredient, automatic to calculate required be added in conjunction with alloy calculation formula
Alloy quantity；After personnel confirm additional amount without big discrepancy, auto feed button is clicked, alloy is added in furnace；
(7) computer control system and power transmission temperature-raising device link, and according to measured temperature, determine electric power feeding time, click is sent automatically
Eletric button executes automatic power adjustment power transmission.
(8) outbound, after contents temperature qualification meets outbound condition, automatic outbound button is clicked, bell is raised up to automatically
Limit, buggy ladle are opened automatically to bull ladle position.
As preferred embodiment, the Argon guiding device admission line is steel pipe；Using steel pipe, to improve pipe
The operational reliability on road and service life.
As preferred embodiment, before the threeway is set to its ball valve of argon gas main pipe rail.
As preferred embodiment, ball valve is provided on the Argon guiding device admission line.
The present invention compared with prior art, LF furnace ladle refining furnace automatic Steelmaking method of the invention；LF furnace uses
Parameter is presetting and system automatically controls, and realizes automatic steel-making.
Detailed description of the invention
Fig. 1 is ladle trolley structural schematic diagram of the invention.
Fig. 2 is ladle trolley partial enlargement structural representation of the invention.
Specific embodiment
Embodiment 1:
LF furnace ladle refining furnace automatic Steelmaking method as depicted in figs. 1 and 2, the first step, the automatic argon blowing tube dress of unloading of installation
It sets, including ladle trolley 1, the ladle trolley 1 is provided with mounting seat 2 far from steel slag tank side；2 top of mounting seat
Argon guiding device 3 is installed；Argon guiding device 3 is mounted remotely from the ladle trolley 1 of steel slag tank side, is avoided on steel vehicle
Collect the injury of slag；Argon guiding device admission line 4, the Argon guiding device air inlet are additionally provided on the ladle trolley 1
4 one end of pipeline is connect by threeway with argon gas main pipe rail (not shown) on ladle trolley, and the other end enters in mounting seat and connects
It is connected to the installation of Argon guiding device 3；Ladle mounting 5 is provided on the ladle trolley 1；5 two sides of ladle mounting are provided with
Block 6；6 vertical direction of block is provided with guide portion 61；Horizontal direction gap width d between the block 6 and ladle mounting 5
For 30mm；Ladle seat shakes larger when entering trolley, be unfavorable for the reliable docking of Argon guiding device, by carrying out to ladle mounting
Transformation has the guiding function of vertical direction and reduction horizontal direction gap width to be subtracted by 100mm ladle by its guide portion of block
30mm effect is arrived less, and ladle can be made to can smoothly enter into trolley and the fashionable generation of seat is avoided acutely to shake and influence Argon guiding device
Normal docking；
Second step establishes automatic steelmaking system, each respond module is linked into computer control system, and control in computer
Automatic steel-making start button and respond module initial value setting interface and ACK button are established in system；
Third step starts to make steel, and clicks automatic steel-making start button, executes automatic Steelmaking；
(1) computer control system is opened with buggy ladle linkage, computer control system control buggy ladle is opened to refining position, refines position
Signal lamp lights, and buggy ladle stops；
(2) computer control system and drop water cooled cover linkage, refining position signal lamp light, computer control system control delay
After 3 seconds, water cooled cover landing sets bell fall time 1.5S；
(3) bottom blowing is opened, computer control system and bottom blowing valve switch link, and refining position signal lights, computer control system
It controls bottom blowing valve switch to open, conversion is to normally blowing after bypassing opening time 15S；
(4) computer control system and thermometric sampler link, and computer control system controls thermometric manipulator or mechanical arm
Movement drives manipulator or mechanical arm temperature sensor to carry out temperature acquisition sampling；And data are sent to computer control system；
(5) computer control system and power transmission slagging device link, multiple electric currents and voltage gear built in computer control system；
Interface is set by respond module initial value and ACK button selects a certain gear, after clicking button, enters automatic steel-making system
In system, computer control system is waited to execute automatic power transmission；First electric power feeding time is set 4 minutes；
(6) computer control system and automatic feeding device link, and set interface and ACK button by respond module initial value
The target value of different steel grades is set, level two is spread out of after furnace ingredient, automatic to calculate required be added in conjunction with alloy calculation formula
Alloy quantity；After personnel confirm additional amount without big discrepancy, auto feed button is clicked, alloy is added in furnace；
(7) computer control system and power transmission temperature-raising device link, and according to measured temperature, determine electric power feeding time, click is sent automatically
Eletric button executes automatic power adjustment power transmission.
(8) outbound, after contents temperature qualification meets outbound condition, automatic outbound button is clicked, bell is raised up to automatically
Limit, buggy ladle are opened automatically to bull ladle position.
In another embodiment, the Argon guiding device admission line 4 is steel pipe；Using steel pipe, to improve pipeline
Operational reliability and service life.
In another embodiment, before the threeway is set to its ball valve of argon gas main pipe rail.
In another embodiment, ball valve is provided on the Argon guiding device admission line 4.
Above-described embodiment is only better embodiment of the invention, therefore all according to structure described in present patent application range
It makes, the equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (4)
1. a kind of LF furnace ladle refining furnace automatic Steelmaking method, which is characterized in that the method is specific as follows:
The first step, installation automatic unload Argon pipe device, including ladle trolley, the ladle trolley are arranged far from steel slag tank side
There is mounting seat；Argon guiding device is installed above the mounting seat；Argon guiding is additionally provided on the ladle trolley
Device admission line, described Argon guiding device admission line one end are connect by threeway with argon gas main pipe rail on ladle trolley,
The other end enters in mounting seat and is connected to the installation of Argon guiding device；Ladle mounting is provided on the ladle trolley；Institute
It states ladle mounting two sides and is provided with block；The block vertical direction is provided with guide portion；Between the block and ladle mounting
Horizontal direction gap width is 30mm；
Second step establishes automatic steelmaking system, each respond module is linked into computer control system, and control in computer
Automatic steel-making start button and respond module initial value setting interface and ACK button are established in system；
Third step starts to make steel, and clicks automatic steel-making start button, executes automatic Steelmaking；
(1) computer control system is opened with buggy ladle linkage, computer control system control buggy ladle is opened to refining position, refines position
Signal lamp lights, and buggy ladle stops；
(2) computer control system and drop water cooled cover linkage, refining position signal lamp light, computer control system control delay
After 3 seconds, water cooled cover landing sets bell fall time 1.5S；
(3) bottom blowing is opened, computer control system and bottom blowing valve switch link, and refining position signal lights, computer control system
It controls bottom blowing valve switch to open, conversion is to normally blowing after bypassing opening time 15S；
(4) computer control system and thermometric sampler link, and computer control system controls thermometric manipulator or mechanical arm
Movement drives manipulator or mechanical arm temperature sensor to carry out temperature acquisition sampling；And data are sent to computer control system；
(5) computer control system and power transmission slagging device link, multiple electric currents and voltage gear built in computer control system；
Interface is set by respond module initial value and ACK button selects a certain gear, after clicking button, enters automatic steel-making system
In system, computer control system is waited to execute automatic power transmission；First electric power feeding time is set 4 minutes；
(6) computer control system and automatic feeding device link, and set interface and ACK button by respond module initial value
The target value of different steel grades is set, level two is spread out of after furnace ingredient, automatic to calculate required be added in conjunction with alloy calculation formula
Alloy quantity；After personnel confirm additional amount without big discrepancy, auto feed button is clicked, alloy is added in furnace；
(7) computer control system and power transmission temperature-raising device link, and according to measured temperature, determine electric power feeding time, click is sent automatically
Eletric button executes automatic power adjustment power transmission；
(8) outbound, after contents temperature qualification meets outbound condition, automatic outbound button is clicked, bell is raised up to upper limit automatically,
Buggy ladle is opened automatically to bull ladle position.
2. LF furnace ladle refining furnace automatic Steelmaking method according to claim 1, it is characterised in that: the Argon guiding
Device admission line is steel pipe.
3. LF furnace ladle refining furnace automatic Steelmaking method according to claim 1, it is characterised in that: the threeway setting
Before its ball valve of argon gas main pipe rail.
4. its Argon pipe device of unloading automatically of LF furnace ladle refining furnace automatic Steelmaking according to claim 1, feature
It is: is provided with ball valve on the Argon guiding device admission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007999.5A CN109536672A (en) | 2019-01-04 | 2019-01-04 | A kind of LF furnace ladle refining furnace automatic Steelmaking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910007999.5A CN109536672A (en) | 2019-01-04 | 2019-01-04 | A kind of LF furnace ladle refining furnace automatic Steelmaking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109536672A true CN109536672A (en) | 2019-03-29 |
Family
ID=65834136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910007999.5A Pending CN109536672A (en) | 2019-01-04 | 2019-01-04 | A kind of LF furnace ladle refining furnace automatic Steelmaking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109536672A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819766A (en) * | 2019-11-19 | 2020-02-21 | 王希宏 | Full-flow intelligent control system for LF (ladle furnace) refining furnace |
| CN111624884A (en) * | 2020-06-03 | 2020-09-04 | 中冶南方工程技术有限公司 | Automatic slag discharge control method and system for converter slag car linkage |
| CN112410510A (en) * | 2020-11-12 | 2021-02-26 | 中冶南方工程技术有限公司 | Method and system for automatically blowing argon into steel ladle |
| CN114606365A (en) * | 2022-03-18 | 2022-06-10 | 西安宝科流体技术有限公司 | Coordinated control system and method for ladle bottom blowing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592964A (en) * | 2009-06-26 | 2009-12-02 | 北京首钢自动化信息技术有限公司 | A kind of system for controlling forecast of molten steel temperature of double-station LF furnace |
| CN106498111A (en) * | 2016-10-19 | 2017-03-15 | 北京首钢国际工程技术有限公司 | A kind of automatic tapping control method based on converter second control system |
-
2019
- 2019-01-04 CN CN201910007999.5A patent/CN109536672A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592964A (en) * | 2009-06-26 | 2009-12-02 | 北京首钢自动化信息技术有限公司 | A kind of system for controlling forecast of molten steel temperature of double-station LF furnace |
| CN106498111A (en) * | 2016-10-19 | 2017-03-15 | 北京首钢国际工程技术有限公司 | A kind of automatic tapping control method based on converter second control system |
Non-Patent Citations (1)
| Title |
|---|
| 王志明: ""莱钢120t钢包精炼炉自动化控制系统"", 《化工自动化及仪表》, vol. 40, no. 7, pages 898 - 900 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819766A (en) * | 2019-11-19 | 2020-02-21 | 王希宏 | Full-flow intelligent control system for LF (ladle furnace) refining furnace |
| CN111624884A (en) * | 2020-06-03 | 2020-09-04 | 中冶南方工程技术有限公司 | Automatic slag discharge control method and system for converter slag car linkage |
| CN111624884B (en) * | 2020-06-03 | 2022-06-24 | 中冶南方工程技术有限公司 | Automatic slag discharge control method and system for converter slag car linkage |
| CN112410510A (en) * | 2020-11-12 | 2021-02-26 | 中冶南方工程技术有限公司 | Method and system for automatically blowing argon into steel ladle |
| CN112410510B (en) * | 2020-11-12 | 2022-07-05 | 中冶南方工程技术有限公司 | Method and system for automatically blowing argon into steel ladle |
| CN114606365A (en) * | 2022-03-18 | 2022-06-10 | 西安宝科流体技术有限公司 | Coordinated control system and method for ladle bottom blowing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109536672A (en) | A kind of LF furnace ladle refining furnace automatic Steelmaking method | |
| CN102851443B (en) | Method for increasing continuous casting heats of aluminum-deoxidized bearing steel | |
| CN102943150B (en) | Refined slag control method | |
| US20130056167A1 (en) | Method for controlling extremely low ti in extra low carbon alsi-killed steel | |
| CN101748282B (en) | Electric slag liquid pouring method | |
| CN102676727A (en) | Process for controlling smelting silicon content of low-silicon steel | |
| CN105838846A (en) | Method for controlling basicity of LF refining slag | |
| CN104611502A (en) | Aluminum-containing and sulfur-containing series gear steel smelting process | |
| CN104232837A (en) | Monitoring device for tapping of converter/electric furnace and control method | |
| CN105648147A (en) | 30MnSi refining technology | |
| CN112481551A (en) | Steel WB36V for power station and smelting continuous casting production process thereof | |
| CN100458622C (en) | Automatic control device and method for liquid level of tundish | |
| CN104384460A (en) | Steel production process for spectral standard sample and pouring device thereof | |
| CN101486088B (en) | Hot-metal bottle combined cover and method thereof for adding and lifting cover | |
| CN101713011B (en) | Novel smelting method of cast steel | |
| CN102337377A (en) | Molten steel wire feeding device and wire feeding method | |
| CN110273048A (en) | A kind of VD furnace online processing position threads feeding apparatus and method | |
| CN110564916A (en) | Method for shortening refining time of SPHC steel grade | |
| CN102634624A (en) | Method for tapping and pouring hot metal at bottom from hot metal ladle | |
| CN114015930B (en) | High-efficiency Q235B micro-titanizing steel grade production process | |
| CN209443036U (en) | A kind of its Argon pipe device of unloading automatically of LF furnace ladle refining furnace automatic Steelmaking | |
| CN110117691A (en) | Dual chamber integral-type electric refining furnaces system and method for making steel | |
| CN102828038B (en) | The method of symmetrical full reclining formula copper bath smelting furnace process converter slag | |
| CN208472144U (en) | A kind of device adding steel scrap into LF furnace | |
| CN219490065U (en) | Automatic control system of accurate reinforced of converter alloy |
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 |