CN105154615A - Automatic adjusting device and method for converter second venturi throat - Google Patents
Automatic adjusting device and method for converter second venturi throat Download PDFInfo
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- CN105154615A CN105154615A CN201510636289.0A CN201510636289A CN105154615A CN 105154615 A CN105154615 A CN 105154615A CN 201510636289 A CN201510636289 A CN 201510636289A CN 105154615 A CN105154615 A CN 105154615A
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Abstract
The invention belongs to the technical field of a converter dust removing device and method, and relates to an automatic adjusting device and method for a converter second venturi throat. The automatic adjusting device and method are used for carrying out automatic adjustment on the converter second venturi throat. According to the technical scheme, a micro differential pressure control manner of a traditional furnace mouth pressure sensor is broken through, a gas analysis meter sensor, an oxygen analysis meter sensor, an oxygen lance position sensor and an oxygen adjusting valve position sensor are additionally arranged, and signals of carbon monoxide content, oxygen content and oxygen lance position serve as marks. A throat hydraulic station is controlled through a PLC. When all the detection signals meet the condition requirement, a weight moves downwards to the regulated position, and when any one of the detection signals does not meet the condition, the weight moves upwards to reset to the original position, and thus the automatic control and adjustment of the converter second venturi throat are achieved. According to the automatic adjusting device and method, simplicity and practicability are achieved, maintaining is convenient, and safety and reliability are achieved. Complex control procedures are avoided, accidents are effectively reduced, the gas recycling rate is greatly increased, and obvious economic benefits are achieved.
Description
Technical field
The present invention relates to a kind of device and method that the civilian aditus laryngis of converter two is automatically adjusted, belong to converter dust-removing Apparatus and method for technical field.
Background technology:
Cleaning apparatus is the indispensable equipment of converter, in various dust removal installation, there is power to be the Wet-way dust-collector that 2800Kw blower fan drives, this dust removal installation comprises gasification cooling flue, spray column, secondary Venturi meter and aditus laryngis (being called for short: two civilian aditus laryngis), water trap, blower fan, T-valve, water-sealed valve, V-type water seal etc., wherein two civilian aditus laryngis are once dust collection of converter nucleus equipments, it is the emphasis of fume treatment operating mode, it plays the keying action of smart dedusting, is related to gas cleaning and coal-gas recovering amount.In dust removal process, two civilian aditus laryngis will automatically adjust according to the size of the exhaust gas volumn during converter smelting, to ensure the parameters requirement of dust removal installation.
The automatic regulation function of current two civilian aditus laryngis is that the circumferential weld size that pressure sensor signal by being installed on fire door controls two civilian aditus laryngis realizes.Find in production practice, there is operating device complex structure in this setting device and method, control process is loaded down with trivial details, sensor maintenance is difficult, failure rate is high, sometimes affect the shortcomings such as normal dedusting operation and production, can not meet and produce fast-developing needs, become the hard nut to crack of restricting dedusting work, urgently improve.
Summary of the invention
Technical problem to be solved by this invention is to provide the civilian aditus laryngis automatic-adjusting device of a kind of converter two and control method, this automatic-adjusting device and control method simple and practical, can the circumferential weld aperture of the civilian aditus laryngis of regulation and control two effectively, make once dust collection of converter flue gas arrange dustiness outward up to standard, improve RECOVERY OF CONVERTER GAS amount and caloric power of gas simultaneously.
The technical scheme solved the problems of the technologies described above is:
The civilian aditus laryngis automatic-adjusting device of a kind of converter two, it comprises magnetic scale hydro-cylinder, hydraulic servocontrol station, connecting rod, secondary Venturi meter expansion segment, aditus laryngis, secondary Venturi meter contraction section, heavily cut or polish jade with an emery wheel, PLC industrial computer, hydraulic servocontrol station is connected with magnetic scale hydro-cylinder, magnetic scale hydro-cylinder, connecting rod and heavily cutting or polish jade with an emery wheel is integrated by pinned connection, secondary Venturi meter expansion segment, aditus laryngis and secondary Venturi meter contraction section are welded to connect, and the signal output part of PLC industrial computer is connected with hydraulic servocontrol station, is provided with magnetic scale hydraulic cylinder position sensor in magnetic scale hydro-cylinder, it also increases gas analysis meter sensor, oxygen analyser sensor, oxygen rifle position transducer, oxygen regulating valve position transducer, gas analysis meter sensor and oxygen analyser sensor are arranged on the flue side of blower fan and T-valve respectively, oxygen rifle position transducer is arranged on oxygen lance lifting electric motor back shaft, oxygen regulating valve position transducer is arranged on the axis upper and lower ends of oxygen regulating valve door, gas analysis meter sensor, oxygen analyser sensor, oxygen rifle position transducer, the signal output part of oxygen regulating valve position transducer is connected with the signal input part of PLC industrial computer.
The civilian aditus laryngis automatic-adjusting device of above-mentioned converter two, described heavy stone roller is connected with manual control device.
Use a control method for the civilian aditus laryngis automatic-adjusting device of above-mentioned converter two, it adopts following steps to carry out:
The first step, signal detection
Detect the physical location of heavily cutting or polish jade with an emery wheel by the magnetic scale hydraulic cylinder position sensor of magnetic scale hydro-cylinder, thus determine the spacing of aditus laryngis, secondary Venturi meter contraction section and the heavily stone roller that heavily formed between stone roller and the circumferential weld of aditus laryngis;
The percentage composition of the CO in flue gas is detected by gas analysis meter sensor; The percentage composition of the O2 in flue gas is detected by oxygen analyser sensor; Oxygen regulating valve switching value is detected by oxygen regulating valve position transducer; The analog quantity of oxygen rifle position is detected by oxygen rifle position transducer;
Second step, signal processing
By the signal input PLC industrial computer detected in the first step, PLC industrial computer processes input signal, is judged by the state of detect parameters to automatic-adjusting device, and the result according to judging sends steering order;
3rd step, controls to export
Steering order is outputted to the control end of magnetic scale hydro-cylinder 1 by PLC industrial computer, controls operation and the stopping of magnetic scale hydro-cylinder 1.
The control method of the civilian aditus laryngis automatic-adjusting device of above-mentioned converter two, before smelting, operator set heavy top upper limit and heavily cut or polish jade with an emery wheel lower limit, and automatic-adjusting device adopts automatic control mode, wherein:
If when the detection signal of the carbon monoxide content that gas analysis meter sensor, oxygen analyser sensor, oxygen rifle position transducer detect, oxygen content, oxygen rifle position meets the conditional request of detection signal simultaneously, heavily cut or polish jade with an emery wheel position Automatic-descending to lower limit, the civilian aditus laryngis aperture of converter two increases;
If when having arbitrary signal not meet conditional request in the detection signal of the carbon monoxide content that gas analysis meter sensor, oxygen analyser sensor, oxygen rifle position transducer detect, oxygen content, oxygen rifle position, heavily cut or polish jade with an emery wheel position and automatically go upward to upper limit, the civilian aditus laryngis aperture of converter two reduces.
The control method of the civilian aditus laryngis automatic-adjusting device of above-mentioned converter two, the conditional request of the detection signal of the carbon monoxide content that described gas analysis meter sensor, oxygen analyser sensor, oxygen rifle position transducer detect, oxygen content, oxygen rifle position is: 1. CO content >30%; 2. O2 content <0.5%; 3. oxygen lance position <13.03m.
The control method of the civilian aditus laryngis automatic-adjusting device of above-mentioned converter two, when there is automatic Control Fault and unusual service condition, adopt Non-follow control status adjustment control method, concrete steps are as follows:
(1) after operator click " hand push button ", the heavily stone roller of two civilian aditus laryngis controls, Non-follow control state is transferred to by automatic control state, then operating mode is smelted by operator according to reality, carry out manual setting to the heavily stone roller position of two civilian aditus laryngis, great trust stroke range is-200mm---+380mm.
(2) when there is the unusual conditions such as gas chamber has cabinet completely to reject, dust-removal system parameter fluctuates widely, " extremely diffusing " button is clicked by operator, Chong Tuo position goes upward to predetermined upper limit automatically, after abnormal releasing, click " automatic button " or " hand push button ", recovering state is to automatic control state again.
The invention has the beneficial effects as follows:
The present invention breaches the differential pressure control mode of traditional fire door pressure transmitter, civilian for once dust collection of converter system two aditus laryngis automatic control mode is divided up and descending two concepts of stone roller of attaching most importance to, with carbon monoxide content, oxygen content, the signal of oxygen rifle position is mark, aditus laryngis Hydraulic Station is controlled by PLC, when detection signal all satisfy condition require time, heavily cut or polish jade with an emery wheel and march to prescribed position downwards, work as carbon monoxide content, oxygen content, when not satisfying condition any one of the detection signal of three, oxygen rifle position, heavily cut or polish jade with an emery wheel to up, return to starting position, thus realize the automatic control and adjustment of the civilian aditus laryngis of converter two.The present invention is simple and practical, be convenient to safeguard, safe and reliable, without loaded down with trivial details sequence of control, after using, significantly reduce the generation of accident, substantially increase coal-gas recovering rate, there is significant economic benefit.
Accompanying drawing explanation
Fig. 1 is converter two of the present invention civilian aditus laryngis automatic-adjusting device structural representation.
In figure, mark is as follows: the circumferential weld 7 of magnetic scale hydro-cylinder 1, hydraulic servocontrol station 2, connecting rod 3, secondary Venturi meter expansion segment 4, aditus laryngis 5, secondary Venturi meter contraction section 6, heavily stone roller and aditus laryngis, heavily cut or polish jade with an emery wheel 8, gas analysis meter sensor 9, oxygen analyser sensor 10, oxygen regulating valve position transducer 11, oxygen rifle position transducer 12, PLC industrial computer 13.
Embodiment
The civilian aditus laryngis automatic-adjusting device of converter two of the present invention comprises magnetic scale hydro-cylinder 1, hydraulic servocontrol station 2, connecting rod 3, secondary Venturi meter expansion segment 4, aditus laryngis 5, secondary Venturi meter contraction section 6, heavily cuts or polish jade with an emery wheel 8, PLC industrial computer 13.
Show in figure, the signal output part of PLC industrial computer 13 is connected with hydraulic servocontrol station 2, hydraulic servocontrol station 2 is connected with magnetic scale hydro-cylinder 1, magnetic scale hydro-cylinder 1, connecting rod 3 and heavily cutting or polish jade with an emery wheel 8 is integrated by pinned connection, secondary Venturi meter expansion segment 4, aditus laryngis 5 and secondary Venturi meter contraction section 6 are welded to connect, PLC industrial computer 13 is moved up and down by hydraulic servocontrol station 2 control piece magnetic scale hydro-cylinder 1, gap between adjustment aditus laryngis 5 and secondary Venturi meter contraction section 6, ensures the size of the circumferential weld 7 of heavily stone roller and aditus laryngis.Heavily cut or polish jade with an emery wheel 8 to be also connected with manual control device.
Show in figure, magnetic scale hydraulic cylinder position sensor is installed in magnetic scale hydro-cylinder 1, it also increases gas analysis meter sensor 9, oxygen analyser sensor 10, oxygen rifle position transducer 12, oxygen regulating valve position transducer 11.Gas analysis meter sensor 9 and oxygen analyser sensor 10 are arranged on the flue side of blower fan and T-valve respectively, oxygen rifle position transducer 12 is arranged on oxygen lance lifting electric motor back shaft, and oxygen regulating valve position transducer 11 is arranged on the axis upper and lower ends of oxygen regulating valve door.The signal output part of gas analysis meter sensor 9, oxygen analyser sensor 10, oxygen rifle position transducer 12, oxygen regulating valve position transducer 11 is connected with the signal input part of PLC industrial computer 13.
Show in figure, the detection signal of the magnetic scale hydraulic cylinder position sensor in magnetic scale hydro-cylinder 1, gas analysis meter sensor 9, oxygen analyser sensor 10, oxygen rifle position transducer 12, oxygen regulating valve position transducer 11 enters PLC industrial computer 13, PLC industrial computer 13 output signal passes to hydraulic servocontrol station 2, and hydraulic servocontrol station 2 control piece magnetic scale hydro-cylinder 1 performs an action.
The control method of the civilian aditus laryngis automatic-adjusting device of the above-mentioned converter of use of the present invention two, it adopts following steps to carry out:
The first step, signal detection
Detected the physical location of heavily cutting or polish jade with an emery wheel 8 by the magnetic scale hydraulic cylinder position sensor of magnetic scale hydro-cylinder 1, thus determine aditus laryngis 5, secondary Venturi meter contraction section 6 and heavily cut or polish jade with an emery wheel the heavily stone roller of formation and the spacing of the circumferential weld 7 of aditus laryngis between 8;
The percentage composition of the CO in flue gas is detected by gas analysis meter sensor 9; The percentage composition of the O2 in flue gas is detected by oxygen analyser sensor 10; Oxygen regulating valve switching value is detected by oxygen regulating valve position transducer 11; The analog quantity of oxygen rifle position is detected by oxygen rifle position transducer 12;
Second step, signal processing
By the signal input PLC industrial computer detected in the first step, PLC industrial computer processes input signal, is judged by the state of detect parameters to automatic-adjusting device, and the result according to judging sends steering order;
3rd step, controls to export
Steering order is outputted to the control end of magnetic scale hydro-cylinder 1 by PLC industrial computer, controls operation and the stopping of magnetic scale hydro-cylinder 1.
In the control method of the civilian aditus laryngis automatic-adjusting device of converter two of the present invention, utilize detection signal to carry out control to need to set various parameter in PLC industrial computer, compare by the parameter preset and detection signal, then send steering order and equipment is automatically adjusted.
The present invention is before smelting, and need operator set heavy top upper limit and heavily cut or polish jade with an emery wheel lower limit, heavily cutting or polish jade with an emery wheel 8 strokes artificially can set according to smelting system operating mode, and scope is-200mm---+380mm.
When automatic-adjusting device adopts automatic control mode:
If when the detection signal of the carbon monoxide content that gas analysis meter sensor 9, oxygen analyser sensor 10, oxygen rifle position transducer 12 detect, oxygen content, oxygen rifle position meets the conditional request of detection signal simultaneously, heavily cut or polish jade with an emery wheel 8 position Automatic-descendings to lower limit, the civilian aditus laryngis aperture of converter two increases;
If when having arbitrary signal not meet conditional request in the detection signal of the carbon monoxide content that gas analysis meter sensor 9, oxygen analyser sensor 10, oxygen rifle position transducer 12 detect, oxygen content, oxygen rifle position, heavily cut or polish jade with an emery wheel 8 positions and automatically go upward to upper limit, the civilian aditus laryngis aperture of converter two reduces.
The conditional request of the detection signal of the carbon monoxide content that gas analysis meter sensor 9 of the present invention, oxygen analyser sensor 10, oxygen rifle position transducer 12 detect, oxygen content, oxygen rifle position is: 1. CO content >30%; 2. O2 content <0.5%; 3. oxygen lance position <13.03m.
When there is automatic Control Fault and unusual service condition in the present invention, adopt Non-follow control status adjustment control method, concrete steps are as follows:
(1) after operator click " hand push button ", the heavily stone roller of two civilian aditus laryngis controls, Non-follow control state is transferred to by automatic control state, then operating mode is smelted by operator according to reality, manual setting is carried out to heavily stone roller 8 position of two civilian aditus laryngis, heavily cuts or polish jade with an emery wheel 8 stroke range for-200mm---+380mm.
(2) when there is the unusual conditions such as gas chamber has cabinet completely to reject, dust-removal system parameter fluctuates widely, " extremely diffusing " button is clicked by operator, Chong Tuo position goes upward to predetermined upper limit automatically, after abnormal releasing, click " automatic button " or " hand push button ", recovering state is to automatic control state again.
The equipment component model that one embodiment of the present of invention adopt is as follows:
The model of gas analysis meter sensor 9 is: LGA-4100DN2000(CO) 0-100%;
The model of oxygen analyser sensor 10 is: LGA-4100DN2000(O2) 0-5%;
The model of oxygen regulating valve position transducer 11 is: FLOWSERVE/Logix3200SeriesDigitalpositionerModel3200MD-28-D6-M-04-40-0G-0FSpringville, Utah, USA Direct Travel;
The model of oxygen rifle position transducer 12 is: CE65M;
The model of PLC industrial computer 13 is: grind magnificent 610L double-core, 2.80G dominant frequency, 2G internal memory, 500G hard disk (WINDOWSXP system).
The control method of the converter two civilian aditus laryngis automatic-adjusting device of one embodiment of the present of invention is as follows:
A., before operator smelt, 8 upper limit+350mm, lower limit-100mm are heavily cut or polish jade with an emery wheel in setting.
B. operator confirm, the heavily stone roller 8 of two civilian aditus laryngis is in " manually " state.
C. operator click oil pump at picture and " concentrate and open " state (1# or 2# oil pump)
During smelting, detection signal starts to participate in controlling, namely when coal-gas recovering early stage with late detection to 1. CO content≤30%; 2. O2 content >=0.5%; 3. oxygen lance position >=12.73m.When (open the spacing 13.03m of oxygen point, close the spacing 13.33m of oxygen point) any is with a condition, heavily cuts or polish jade with an emery wheel 8 positions and be automatically adjusted to upper limit+350mm.
D. mid-term is smelted, when detection signal detects and meets following three conditions simultaneously, i.e. 1. CO content >30%; 2. O2 content <0.5%; 3. oxygen lance position <13.03m.Heavily cut or polish jade with an emery wheel 8 position Automatic-descendings to lower limit ,-100mm.
Two civilian aditus laryngis auto-adjustment controls of the complete coal-gas recovering that more than worked.
Non-follow control status adjustment control method (being suitable for and automatic Control Fault and unusual service condition)
E. after operator click " hand push button ", the heavily stone roller 8 of two civilian aditus laryngis controls, and transfers Non-follow control state to, then smelt operating mode by operator according to reality by automatic control state, carry out manual setting to heavily stone roller 8 position of two civilian aditus laryngis, heavily cutting or polish jade with an emery wheel stroke range is-200mm---+380mm.
F. when there is the unusual conditions such as gas chamber has cabinet completely to reject, dust-removal system parameter fluctuates widely, on picture, click " extremely diffuse " button by operator, heavily cut or polish jade with an emery wheel 8 positions and automatically go upward to predetermined upper limit (can artificially capping position 0mm---+380mm).After abnormal releasing, then click " automatic button " or " hand push button ", recovering state is to automatic control state.
Two civilian aditus laryngis auto-adjustment controls of the complete coal-gas recovering that more than worked.
Claims (6)
1. the civilian aditus laryngis automatic-adjusting device of converter two, it comprises magnetic scale hydro-cylinder (1), hydraulic servocontrol station (2), connecting rod (3), secondary Venturi meter expansion segment (4), aditus laryngis (5), secondary Venturi meter contraction section (6), heavily cut or polish jade with an emery wheel (8), PLC industrial computer (13), hydraulic servocontrol station (2) are connected with magnetic scale hydro-cylinder (1), magnetic scale hydro-cylinder (1), connecting rod (3) and heavily stone roller (8) are integrated by pinned connection, secondary Venturi meter expansion segment (4), aditus laryngis (5) and secondary Venturi meter contraction section (6) are welded to connect, the signal output part of PLC industrial computer (13) is connected with hydraulic servocontrol station (2), it is characterized in that: magnetic scale hydraulic cylinder position sensor () is installed in magnetic scale hydro-cylinder (), it also increases gas analysis meter sensor (9), oxygen analyser sensor (10), oxygen rifle position transducer (12), oxygen regulating valve position transducer (11), gas analysis meter sensor (9) and oxygen analyser sensor (10) are arranged on the flue side of blower fan and T-valve respectively, oxygen rifle position transducer (12) is arranged on oxygen lance lifting electric motor back shaft, oxygen regulating valve position transducer (11) is arranged on the axis upper and lower ends of oxygen regulating valve door, gas analysis meter sensor (9), oxygen analyser sensor (10), oxygen rifle position transducer (12), the signal output part of oxygen regulating valve position transducer (11) is connected with the signal input part of PLC industrial computer (13).
2. the civilian aditus laryngis automatic-adjusting device of converter two according to claim 1, is characterized in that: described heavy stone roller (8) is connected with manual control device.
3. use a control method for the civilian aditus laryngis automatic-adjusting device of above-mentioned converter two, it is characterized in that: it adopts following steps to carry out:
The first step, signal detection
Detect the physical location of heavily cutting or polish jade with an emery wheel (8) by the magnetic scale hydraulic cylinder position sensor of magnetic scale hydro-cylinder (1), thus determine aditus laryngis (5), secondary Venturi meter contraction section (6) and heavily cut or polish jade with an emery wheel the heavily stone roller of formation and the spacing of the circumferential weld () of aditus laryngis between (8);
The percentage composition of the CO in flue gas is detected by gas analysis meter sensor (9); The percentage composition of the O2 in flue gas is detected by oxygen analyser sensing (10) device; Oxygen regulating valve switching value is detected by oxygen regulating valve position transducer (11); The analog quantity of oxygen rifle position is detected by oxygen rifle position transducer (12);
Second step, signal processing
By signal input PLC industrial computer (13) detected in the first step, PLC industrial computer (13) processes input signal, is judged by the state of detect parameters to automatic-adjusting device, and the result according to judging sends steering order;
3rd step, controls to export
Steering order is outputted to the control end of magnetic scale hydro-cylinder (1) by PLC industrial computer (13), controls operation and the stopping of magnetic scale hydro-cylinder (1).
4. the control method of the civilian aditus laryngis automatic-adjusting device of converter two according to claim 3, is characterized in that: before smelting, and operator set heavy top upper limit and heavily cut or polish jade with an emery wheel lower limit, and automatic-adjusting device adopts automatic control mode, wherein:
If when the detection signal of the carbon monoxide content that gas analysis meter sensor (9), oxygen analyser sensor (10), oxygen rifle position transducer (12) detect, oxygen content, oxygen rifle position meets the conditional request of detection signal simultaneously, heavily cut or polish jade with an emery wheel position Automatic-descending to lower limit, the civilian aditus laryngis aperture of converter two increases;
If when having arbitrary signal not meet conditional request in the detection signal of the carbon monoxide content that gas analysis meter sensor (9), oxygen analyser sensor (10), oxygen rifle position transducer (12) detect, oxygen content, oxygen rifle position, heavily cut or polish jade with an emery wheel position and automatically go upward to upper limit, the civilian aditus laryngis aperture of converter two reduces.
5. the control method of the civilian aditus laryngis automatic-adjusting device of converter two according to claim 4, is characterized in that: the conditional request of the detection signal of the carbon monoxide content that described gas analysis meter sensor (9), oxygen analyser sensor (10), oxygen rifle position transducer (12) detect, oxygen content, oxygen rifle position is: 1. CO content >30%; 2. O2 content <0.5%; 3. oxygen lance position <13.03m.
6. the control method of the civilian aditus laryngis automatic-adjusting device of converter two according to claim 5, is characterized in that: when there is automatic Control Fault and unusual service condition, and adopt Non-follow control status adjustment control method, concrete steps are as follows:
A. after operator click " hand push button ", the heavily stone roller of two civilian aditus laryngis controls, and transfers Non-follow control state to, then smelt operating mode by operator according to reality by automatic control state, carry out manual setting to the heavily stone roller position of two civilian aditus laryngis, heavily cutting or polish jade with an emery wheel stroke range is-200mm---+380mm;
B. when there is the unusual conditions such as gas chamber has cabinet completely to reject, dust-removal system parameter fluctuates widely, " extremely diffusing " button is clicked by operator, Chong Tuo position goes upward to predetermined upper limit automatically, after abnormal releasing, click " automatic button " or " hand push button ", recovering state is to automatic control state again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636289.0A CN105154615B (en) | 2015-09-30 | 2015-09-30 | A kind of literary aditus laryngis self-checking device of converter two and adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510636289.0A CN105154615B (en) | 2015-09-30 | 2015-09-30 | A kind of literary aditus laryngis self-checking device of converter two and adjusting method |
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| Publication Number | Publication Date |
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| CN105154615A true CN105154615A (en) | 2015-12-16 |
| CN105154615B CN105154615B (en) | 2017-07-11 |
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| CN201510636289.0A Active CN105154615B (en) | 2015-09-30 | 2015-09-30 | A kind of literary aditus laryngis self-checking device of converter two and adjusting method |
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| CN105925751A (en) * | 2016-06-15 | 2016-09-07 | 江苏永钢集团有限公司 | Safety converter gas recycling system |
| CN107630120A (en) * | 2016-07-18 | 2018-01-26 | 鞍钢股份有限公司 | A kind of adjusting method of two literary aditus laryngis of converter |
| CN109609720A (en) * | 2019-01-04 | 2019-04-12 | 湖南华菱涟源钢铁有限公司 | Converter dry dedusting differential pressure control method, device and converter dry dust pelletizing system |
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| CN104120212A (en) * | 2014-08-12 | 2014-10-29 | 中冶赛迪电气技术有限公司 | Novel OG controlling method for dust collection of converter |
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| CN101358263A (en) * | 2007-08-01 | 2009-02-04 | 山东省冶金设计院有限责任公司 | Converter gas cooling and purification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105925751A (en) * | 2016-06-15 | 2016-09-07 | 江苏永钢集团有限公司 | Safety converter gas recycling system |
| CN107630120A (en) * | 2016-07-18 | 2018-01-26 | 鞍钢股份有限公司 | A kind of adjusting method of two literary aditus laryngis of converter |
| CN107630120B (en) * | 2016-07-18 | 2019-12-13 | 鞍钢股份有限公司 | method for adjusting converter second venturi throat |
| CN109609720A (en) * | 2019-01-04 | 2019-04-12 | 湖南华菱涟源钢铁有限公司 | Converter dry dedusting differential pressure control method, device and converter dry dust pelletizing system |
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|---|---|
| CN105154615B (en) | 2017-07-11 |
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