CN106011390A - Control system and method for VD vacuum refining furnace steel slag overflow - Google Patents
Control system and method for VD vacuum refining furnace steel slag overflow Download PDFInfo
- Publication number
- CN106011390A CN106011390A CN201610557827.1A CN201610557827A CN106011390A CN 106011390 A CN106011390 A CN 106011390A CN 201610557827 A CN201610557827 A CN 201610557827A CN 106011390 A CN106011390 A CN 106011390A
- Authority
- CN
- China
- Prior art keywords
- slag
- control system
- refining furnace
- vacuum refining
- vacuum
- 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
- C21C7/10—Handling in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/02—Observation or illuminating devices
- F27D2021/026—Observation or illuminating devices using a video installation
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention provides a control system and method for VD vacuum refining furnace steel slag overflow. The control system comprises an industrial camera installed in a VD furnace, and the industrial camera is connected with a PLC control system. The PLC control system is connected with a pressure balance valve installed on a furnace cover of the VD furnace. The pressure balance valve is connected with an argon or nitrogen supply device through a pipeline. The control system and method can effectively solve the steel slag overflow problem of a molten steel tank in the high vacuum dehydrogenation treatment process of the VD furnace, remote control for retaining a furnace cover vacuum breaking valve inside the molten steel tank is achieved through the technical means, and the control system and method are used for reducing the slag overflow situation of the molten steel tank, reducing the workloads for manually cleaning steel slag inside the tank and improving the work efficiency of the VD furnace.
Description
Technical field:
The present invention relates to a kind of VD vacuum refining furnace slag overflow slag control system and control method, belong to the automatic control technology field in VD stove vacuum system.
Background technology:
In VD stove vacuum steel water treatment procedure, because of under the conditions of fine vacuum 67Pa, in molten steel, free [H] quickly separates out in gaseous form from high-temperature molten steel, under steel ladle argon quickly stirs, in ladle, slag quickly floats, cause slag to overflow ladle mouth not because of molten steel tank emptying, in ladle bag mouth dross, VD retort body, accumulated slag phenomenon is serious, brings considerable influence to continuous, the safety in production of steel-making, continuous casting working procedure.
Summary of the invention
It is an object of the invention to overflow for a kind of VD vacuum refining furnace slag of problem offer of above-mentioned existence slag control system and control method, solve ladle slag in de-[H] processing procedure of VD stove fine vacuum to overflow slag problem, realize suppression ladle inner roof brick air valve by technological means remotely to control, overflow slag situation in order to reduce ladle, reduce workman and clear up the workload of slag in tank, improve VD stove work efficiency.
Above-mentioned purpose is achieved through the following technical solutions:
VD vacuum refining furnace slag overflows slag control system, including the industrial photographic head being arranged in VD stove, described industrial photographic head connects PLC control system, described PLC control system connection is arranged on the equilibrated valve on VD stove bell, and described equilibrated valve connects argon or nitrogen supply (NS) device by pipeline.
Described VD vacuum refining furnace slag overflows slag control system, and described equilibrated valve uses pneumatic operated valve.
Described VD vacuum refining furnace slag overflows slag control system, and described industrial photographic head is arranged on inside the bell of described VD stove.
Described VD vacuum refining furnace slag overflows slag control system, and described industrial photographic head uses high temperature resistant camera head, and is configured with circulating water cooling system.
Described VD vacuum refining furnace slag overflows slag control system, and described PLC control system includes input/output signal scan module, program execution module, output refresh module.
With above-mentioned VD vacuum refining furnace slag overflow slag control system carry out VD vacuum refining furnace slag overflow slag control method, the method includes: by the change of slag blanket in photographic head observation ladle on cover, when slag blanket overflow, remote opening equilibrated valve, the relation extraneous gas of tank inside and outside differential pressure enters in tank, in causing tank, vacuum rises, its gas overflowing rate reduction, top of the slag climbing speed slows down until overflowing speed and exhaust velocity reaches equilibrium point, and the top of the slag is closed balanced valve after reducing and met molten steel vacuum requirement.
Described VD vacuum refining furnace slag overflow slag control method, being additionally included in pouring in of large quantity of air under high vacuum state causes the interior dust of pipe to run into the scene that oxygen second-time burning causes dust-removal cloth-bag to damage, medium pressure nitrogen gas or argon is used to regulate source of the gas as pressure, carry out brokenly empty time pressure adjusting function, the method preventing from molten steel oxidation causes molten steel secondary pollution.
Beneficial effect:
The present invention solves ladle slag in de-[H] processing procedure of VD stove fine vacuum and overflows slag problem, realize suppression ladle inner roof brick air valve by technological means remotely to control, overflow slag situation in order to reduce ladle, reduce workman and clear up the workload of slag in tank, improve VD stove work efficiency.Ensureing reliability and the air-tightness of whole system, on bell, perforate increases operated pneumatic valve newly, is used for realizing the most broken empty function.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1, VD stove；2, industry photographic head；3, PLC control system；4, equilibrated valve；5, argon or nitrogen supply (NS) device.
Detailed description of the invention
Below in conjunction with detailed description of the invention, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is merely to illustrate the present invention rather than limits the scope of the present invention.
Embodiment 1:
VD vacuum refining furnace slag overflows slag control system, including the industrial photographic head 2 being arranged in VD stove 1, described industrial photographic head connects PLC control system 3, described PLC control system connection is arranged on the equilibrated valve 4 on VD stove bell, and described equilibrated valve connects argon or nitrogen supply (NS) device 5 by pipeline.
VD vacuum refining furnace slag described in the present embodiment overflows slag control system, and described equilibrated valve uses pneumatic operated valve.
VD vacuum refining furnace slag described in the present embodiment overflows slag control system, and described industrial photographic head is arranged on inside the bell of described VD stove.
VD vacuum refining furnace slag described in the present embodiment overflows slag control system, the described industrial photographic head described in the employing of industrial photographic head uses industry dedicated video camera that real-time image signal is converted to the discernible signal of telecommunication, show with display screen through relevant signal processing recovering signal, transmitted by real-time screen signal.In view of the adverse circumstances of industry spot, high temperature photographic head is had claimed below: 1, the output that equipment is stable；2, body is carried out air-cooled or circulating water；3, apparatus body requires the sealing preferably sealed.
VD vacuum refining furnace slag described in the present embodiment overflows slag control system, described PLC control system includes input/output signal scan module, program execution module, output refresh module: 1, the input/output signal scan module change by external signal, it is converted into the input signal of discernible PLC module, program execution module in PLC system performs according to correlated condition according to set program (program worked out or develop), and export result, control signal is exported, to reach to control purpose by the output module of PLC system.
With above-mentioned VD vacuum refining furnace slag overflow slag control system carry out VD vacuum refining furnace slag overflow slag control method, the method includes: by the change of slag blanket in photographic head observation ladle on cover, when slag blanket overflow, remote opening equilibrated valve, the relation extraneous gas of tank inside and outside differential pressure enters in tank, in causing tank, vacuum rises, its gas overflowing rate reduction, top of the slag climbing speed slows down until overflowing speed and exhaust velocity reaches equilibrium point, and the top of the slag is closed balanced valve after reducing and met molten steel vacuum requirement.
Described VD vacuum refining furnace slag overflow slag control method, being additionally included in pouring in of large quantity of air under high vacuum state causes the interior dust of pipe to run into the scene that oxygen second-time burning causes dust-removal cloth-bag to damage, medium pressure nitrogen gas or argon is used to regulate source of the gas as pressure, carry out brokenly empty time pressure adjusting function, the method preventing from molten steel oxidation causes molten steel secondary pollution.
Claims (8)
1. a VD vacuum refining furnace slag overflows slag control system, it is characterized in that: include the industrial photographic head being arranged in VD stove, described industrial photographic head connects PLC control system, described PLC control system connection is arranged on the equilibrated valve on VD stove bell, and described equilibrated valve connects argon or nitrogen supply (NS) device by pipeline.
Described VD vacuum refining furnace slag the most according to claim 1 overflows slag control system, it is characterized in that: described equilibrated valve uses pneumatic operated valve.
VD vacuum refining furnace slag the most according to claim 1 and 2 overflows slag control system, it is characterized in that: described industrial photographic head is arranged on inside the bell of described VD stove.
VD vacuum refining furnace slag the most according to claim 1 and 2 overflows slag control system, it is characterized in that: described industrial photographic head uses high temperature resistant camera head, and is configured with circulating water cooling system.
VD vacuum refining furnace slag the most according to claim 3 overflows slag control system, it is characterized in that: described industrial photographic head uses high temperature resistant camera head, and is configured with circulating water cooling system.
6. overflow slag control system according to the VD vacuum refining furnace slag described in claim 1 or 2 or 5, it is characterized in that: described PLC control system includes input/output signal scan module, program execution module, output refresh module.
7. one kind with above-mentioned VD vacuum refining furnace slag overflow slag control system carry out VD vacuum refining furnace slag overflow slag control method, it is characterized in that: the method includes: by the change of slag blanket in photographic head observation ladle on cover, when slag blanket overflow, remote opening equilibrated valve, the relation extraneous gas of tank inside and outside differential pressure enters in tank, in causing tank, vacuum rises, its gas overflowing rate reduction, top of the slag climbing speed slows down until overflowing speed and exhaust velocity reaches equilibrium point, and the top of the slag is closed balanced valve after reducing and met molten steel vacuum requirement.
VD vacuum refining furnace slag the most according to claim 7 overflow slag control method, it is characterized in that: be additionally included in pouring in of large quantity of air under high vacuum state and cause the interior dust of pipe to run into the scene that oxygen second-time burning causes dust-removal cloth-bag to damage, medium pressure nitrogen gas or argon is used to regulate source of the gas as pressure, carry out brokenly empty time pressure adjusting function, the method preventing from molten steel oxidation causes molten steel secondary pollution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557827.1A CN106011390A (en) | 2016-07-15 | 2016-07-15 | Control system and method for VD vacuum refining furnace steel slag overflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557827.1A CN106011390A (en) | 2016-07-15 | 2016-07-15 | Control system and method for VD vacuum refining furnace steel slag overflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011390A true CN106011390A (en) | 2016-10-12 |
Family
ID=57119095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610557827.1A Pending CN106011390A (en) | 2016-07-15 | 2016-07-15 | Control system and method for VD vacuum refining furnace steel slag overflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411069A (en) * | 2018-04-28 | 2018-08-17 | 共享铸钢有限公司 | A kind of VOD stoves water cooling leak automatic alarm control system and control method |
| CN113621760A (en) * | 2021-08-18 | 2021-11-09 | 湖南福华信息工程有限公司 | Automatic argon blowing system of RH furnace and use method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201427977Y (en) * | 2009-07-20 | 2010-03-24 | 天津市三特电子有限公司 | High-temperature monitoring device of refining furnace |
| CN201915116U (en) * | 2010-12-15 | 2011-08-03 | 中冶赛迪工程技术股份有限公司 | Vacuum tank cover for vacuum refining furnace |
| CN202022956U (en) * | 2011-03-25 | 2011-11-02 | 北大方正集团有限公司 | VD furnace argon blowing control device |
| CN202482357U (en) * | 2012-02-29 | 2012-10-10 | 新兴铸管股份有限公司 | Automatic steam diffusion pressure-stabilizing device |
| CN202830079U (en) * | 2012-09-07 | 2013-03-27 | 中冶赛迪工程技术股份有限公司 | Slag overflow protective device of vacuum refining furnace |
| CN203393183U (en) * | 2013-07-22 | 2014-01-15 | 杭州杭真真空工程技术有限公司 | Argon blowing control device at ladle bottom |
| CN203429200U (en) * | 2013-06-28 | 2014-02-12 | 江苏申源特钢有限公司 | VD (vacuum degassing) furnace |
| CN203972791U (en) * | 2014-07-22 | 2014-12-03 | 山西太钢不锈钢股份有限公司 | A kind of ladle liquid level monitoring arrangement |
| CN104593547A (en) * | 2015-01-13 | 2015-05-06 | 山东钢铁股份有限公司 | Vacuumizing control method and system of VD mechanical pump |
| CN104593549A (en) * | 2015-02-02 | 2015-05-06 | 西安宝科流体技术有限公司 | Control method capable of realizing precise control of bottom-blowing gas during refining and vacuumizing in VD furnace |
-
2016
- 2016-07-15 CN CN201610557827.1A patent/CN106011390A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201427977Y (en) * | 2009-07-20 | 2010-03-24 | 天津市三特电子有限公司 | High-temperature monitoring device of refining furnace |
| CN201915116U (en) * | 2010-12-15 | 2011-08-03 | 中冶赛迪工程技术股份有限公司 | Vacuum tank cover for vacuum refining furnace |
| CN202022956U (en) * | 2011-03-25 | 2011-11-02 | 北大方正集团有限公司 | VD furnace argon blowing control device |
| CN202482357U (en) * | 2012-02-29 | 2012-10-10 | 新兴铸管股份有限公司 | Automatic steam diffusion pressure-stabilizing device |
| CN202830079U (en) * | 2012-09-07 | 2013-03-27 | 中冶赛迪工程技术股份有限公司 | Slag overflow protective device of vacuum refining furnace |
| CN203429200U (en) * | 2013-06-28 | 2014-02-12 | 江苏申源特钢有限公司 | VD (vacuum degassing) furnace |
| CN203393183U (en) * | 2013-07-22 | 2014-01-15 | 杭州杭真真空工程技术有限公司 | Argon blowing control device at ladle bottom |
| CN203972791U (en) * | 2014-07-22 | 2014-12-03 | 山西太钢不锈钢股份有限公司 | A kind of ladle liquid level monitoring arrangement |
| CN104593547A (en) * | 2015-01-13 | 2015-05-06 | 山东钢铁股份有限公司 | Vacuumizing control method and system of VD mechanical pump |
| CN104593549A (en) * | 2015-02-02 | 2015-05-06 | 西安宝科流体技术有限公司 | Control method capable of realizing precise control of bottom-blowing gas during refining and vacuumizing in VD furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411069A (en) * | 2018-04-28 | 2018-08-17 | 共享铸钢有限公司 | A kind of VOD stoves water cooling leak automatic alarm control system and control method |
| CN113621760A (en) * | 2021-08-18 | 2021-11-09 | 湖南福华信息工程有限公司 | Automatic argon blowing system of RH furnace and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106011390A (en) | Control system and method for VD vacuum refining furnace steel slag overflow | |
| CN202062057U (en) | Argon protecting device used for steel ingot pouring | |
| CN104195285B (en) | A kind of high-efficiency steel-smelting converter system | |
| CN205473867U (en) | LF stove dust pelletizing system | |
| CN201406446Y (en) | Movable gas hood for converter gas | |
| CN201411470Y (en) | Light-tonnage environment-friendly VOD steel ladle refining furnace | |
| CN104120212A (en) | Novel OG controlling method for dust collection of converter | |
| CN207276650U (en) | Vacuum refining furnace feeds the fume dust remover during silk | |
| CN111518992B (en) | Tank type single-nozzle refining furnace and vacuum refining method | |
| CN107630120B (en) | method for adjusting converter second venturi throat | |
| CN105401048B (en) | A kind of inexpensive preparation process for reducing Q345B/C banded structures | |
| ITTO20010288A1 (en) | EQUIPMENT FOR THE TRANSFER OF LIQUID METALS FROM A WITHDRAWAL CONTAINER TO A COLLECTION CONTAINER. | |
| CN111266565A (en) | Ladle air brick blowing and blocking system and method | |
| US3358983A (en) | Water-cooled sealing ring for converter | |
| CN111349741A (en) | Method for forecasting splashing in converter steelmaking and detecting molten steel temperature and carbon content | |
| CN205933985U (en) | Magnesium oxide spray gun | |
| US3333839A (en) | Apparatus for recovering unburned gases issued from metal refining furnaces | |
| CN203786586U (en) | On-line monitoring device for slow cooling of high-temperature smelting slag | |
| CN107243623A (en) | A kind of ladle with vacuum layer | |
| CN203393204U (en) | Oxygen-enriched reduction furnace used for treating low-grade multi-metal materials | |
| CN111485050A (en) | Method for separating out scale graphite from molten iron desulphurization process | |
| CN201530837U (en) | CAS-OB dedusting device | |
| CN203419949U (en) | Improved vacuum degassing device | |
| CN205133655U (en) | Converter mouth high temperature pinhole splashproof dust removal monitored control system | |
| CN205183756U (en) | Magnesium alloy valve formula casting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |