CN107192258B - Mineral hot furnace safety in production early warning and emergency stopping system - Google Patents
Mineral hot furnace safety in production early warning and emergency stopping system Download PDFInfo
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- CN107192258B CN107192258B CN201710421714.3A CN201710421714A CN107192258B CN 107192258 B CN107192258 B CN 107192258B CN 201710421714 A CN201710421714 A CN 201710421714A CN 107192258 B CN107192258 B CN 107192258B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/28—Arrangement of controlling, monitoring, alarm or the like devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
Mineral hot furnace safety in production early warning and emergency stopping system, the present invention relates to mine hot type resistor electric arc furnace technical fields；It, by calculate to measurement data and logic judgment, exceeded initiation early warning and stops in emergency using computer and measuring instrumentss as hardware；Its operating method is as follows：Real-time measurement is carried out to the cooling water flowed into and out in furnace by application high-precision flow measuring instrumentss；Electrode paste level gauging instrument measures the height of paste column；Super-Current Measurement instrument measures electrode current, detects its current break；In-furnace temperature is measured, and temperature trend is analyzed；Pass through the measurement to furnace high-voltage side electric current, voltage；By, it is necessary to issue alarm signal, beyond safe early warning quota, stopping in emergency with regard to starting to the above detection instrument superscalar data.It more thoroughly realizes and the technique and equipment operating parameter that cause safety accident is continuously detected in real time, monitored automatically, is given warning in advance, interlocking is stopped in emergency, and security reliability is higher.
Description
Technical field
The present invention relates to mine hot type resistor electric arc furnace technical fields, and in particular to mineral hot furnace safety in production and promptly stops at early warning
Vehicle system.
Background technique
China is the smelting big country in the current world, and the iron such as 80% or more calcium carbide of the whole world, ferrosilicon, silico-calcium, silicomanganese and ferrochrome close
Gold originates from China, and the industrial silicon for surpassing 99% originates from China.Ningxia is that the smelting of China saves greatly, and the ratio of main matallurgical products accounts for entirely
20% or more of state's production capacity, the whole district be more than 60% commercial power consume in mineral hot furnace, whole district GDP and tax revenue more than half come
From the industry of smelting, the safety in production of mineral hot furnace and its industrial chain is always the most important thing of area's safety production system, and safety
The high-incidence region of accident.
The phenomenon that causing industrial accident and characteristic parameter there are several types of：Electric furnace cooling water largely leak into burner hearth and
The phenomenon that reaction zone and characteristic parameter：This be because of equipment damage in furnace caused by.So that a large amount of cooling waters pour into high temperature reaction zone, fastly
Speed vaporization, causes explosion, causes serious equipment damage and operator's injures and deaths, and the characteristic parameter of this phenomenon is into furnace
Cooling water inflow and outflow cooling water inflow inequality；Electrode soft or hard disconnected phenomenon and characteristic parameter：Soft break of electrode is because of electrode
It is unable to catch up with the speed of consumption from rate of roasting, operator presses electrode still according to set operation measure, causes electrode current logical
It crosses external electrode cylinder to flow through, generates breakdown stream paste.Cohesion device cannot embrace hard electrode simultaneously and electrode oneself glides, and cause furnace
Interior high-temperature product and furnace gas are sprayed onto boiler face, and the consumable electrode paste for the boiler face high volatile that ignites occurs high temperature and fires.Cause mineral hot furnace
Equipment large area is burnt out, or even is scrapped, while furnace operation face and surrounding operator's life being threatened to cause a tremendous loss of lives,
The characteristic parameter of this phenomenon is electrode paste liquid level rapid decrease, electrode current mutation, other reactions all after the accident,
Electrode hard breakage so that electrode is too long below cohesion device, is self-possessed too big, is surpassed because electrode sintering velocity is greater than depletion rate
It spends and is broken before having crossed electrode itself, also there is electrode hard breakage caused by other reasons.It causes to draw in electrode broken end insertion furnace
Hair furnace high-temperature product and furnace gas are sprayed onto boiler face, and spray furnace occurs, and cause equipment burnout and personnel's burn, the feature ginseng of this phenomenon
Number is that electrode current suddenly drops to zero；Electrode cannot be inserted into phenomenon and characteristic parameter in furnace charge well, due to that cannot select
Good raw material and operator's violation operation electric furnace, prevent electrode from being inserted into furnace charge well, causes on high temperature reaction zone
It moving, the bed of material cannot form intact structure, cause the material that collapses whens not waiting repeatedly, and collapse greatly material sometimes, and high-temperature gas sprays, spray furnace is caused,
Equipment and burn operator are burnt out, the characteristic parameter of this phenomenon is that in-furnace temperature increases, and it is higher and higher to increase trend；Electricity
Equipment burnout and casualties caused by gas equipment excess load, overtemperature, superpressure：Many manufacturing enterprises are in order to increase production, adjust the mesh such as furnace
, scientific common sense and operating instruction are violated, long-term serious excess load is up to 30% or more, or even surpasses 50%.It powers simultaneously to mineral hot furnace
The resonance problems in circuit are let go unchecked, and electrical equipment is caused seriously to generate heat, and dielectric level reduces rapidly, and are caused main transformer and are burnt, cold
But quick-fried in oil is fired, switch explosion, to cause serious property loss and casualties.Power supply department lets alone enterprise for number one
Industry is safely operated from tube apparatus, and this phenomenon is characterized in supercurrent, excess load, ultra-voltage, overtemperature, can be detected, be reported
Alert and parking process；Phenomenon in special smelting furnace such as closed calcium carbide furnace, vacuum smelting furnace gas leak and oxygen sucking furnace
Characteristic parameter, the recycling due to special smelting furnace such as closed calcium carbide furnace, vacuum smelting furnace etc. to furnace gas, furnace is interior or recycling fills
Setting requirement has pressure, easily causes gas leak and air enters in furnace, causes gas-fired, personnel's poisoning, gas explosion etc.
Accident, causes equipment damage and casualties, and the characteristic parameter of this phenomenon is that equipment nearby has negative pressure in coal gas and furnace to weaken
Or disappear, detect instrument superscalar data.
As-Is are only and to have carried out early warning to having carried out detection of characteristic parameters the problem of partially causing safety accident.
And the selection of characteristic parameter is also unobvious, causes early warning incorrect.Such as cooling water leakage accident, only select temperature special
Sign does not have big effect to accident early warning problem appear to is that the temperature measurement reaction time is long.Caused by excessive to furnace time-dependent current
Equipment damage accident, only has detected high-tension current, and furnace is protected to become, but to electrode it is soft or hard it is disconnected caused by serious accident can not early warning
Deng.Comprehensively occur not yet to mineral hot furnace production process safety pre-warning system.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of design is reasonable, easy to use
Mineral hot furnace is kept the safety in production early warning and emergency stopping system, in addition to have the protection of conventional security strategy means and security preparedness it
Outside, it more thoroughly realizes and the technique and equipment operating parameter that cause safety accident is continuously detected in real time, monitored automatically, in advance
Early warning, interlocking are stopped in emergency, and practicability is stronger.
To achieve the above object, the technical solution adopted by the present invention is that：It passes through using computer and measuring instrumentss as hardware
Specific calculations and logic judgment carried out to measurement data, exceeded initiation early warning and is stopped in emergency；Its operating method is as follows：
1, real-time measurement is carried out to the cooling water flowed into and out in furnace by application high-precision flow measuring instrumentss（Electric furnace
Cooling water largely leaks into the phenomenon that burner hearth and reaction zone and characteristic parameter is cooling water inflow and outflow cooling water into furnace
Measure inequality）, then compare, when the cooling water inflow of outflow is less than the flow certain amount entered, and a certain cooling water
Outlet pipe temperature quickly increases, and has reached alarming value, is considered as it and is leaked, and issues alarm signal；When the cooling of outflow
When water is a large number of less than the flow entered, it is considered as it and significant leakage has occurred, initiation is stopped in emergency；
2, the height of paste column is measured using electrode paste level gauging instrument（Electrode soft or hard disconnected phenomenon and feature
Parameter is electrode paste liquid level rapid decrease, electrode current mutation）, when its numerical value rapid decrease, it is believed that electrode has occurred
Soft disconnected, system issues alarm signal, while Super-Current Measurement instrument measures electrode current, detects its current break, when
Instantaneous mutation has occurred in the electrode current of system detection, and quantity has reached setting value, be considered as electrode have occurred it is soft disconnected, immediately
Starting is stopped in emergency；When the electrode current of system detection instantaneously falls to zero, it is hard disconnected to illustrate that electrode has occurred, starting is tight immediately
Emergency stop vehicle；
3, in-furnace temperature is measured, and temperature trend is analyzed（Electrode cannot be inserted into furnace charge well
Phenomenon and characteristic parameter are that in-furnace temperature increases, and it is higher and higher to increase trend）, when in-furnace temperature raising and repeatedly fluctuation, hair
Exhibition trend is higher and higher, be considered as electrode insertion the bed of material it is excessively shallow, be easy cause spray furnace accident, issue alarm signal, remind operation
Worker takes measures, and electrode is inserted among furnace charge deeply；
4, pass through the measurement to furnace high-voltage side electric current, voltage（Equipment caused by electrical equipment excess load, overtemperature, superpressure
Burnout failure is characterized in supercurrent, excess load, ultra-voltage, overtemperature）, sending alarm signal is taken to overfulfiling the quota, reminds behaviour
Equipment safety operation is paid attention to as member；Furnace transformer temperature is measured, overfulfils the quota to temperature and takes sending alarm signal,
It takes starting to stop in emergency in the transformer for also continuing operation beyond safe early warning quota, detection is taken for electrical system resonance
Characteristic parameter increases device for eliminating harmonic, and the method for destroying condition of resonance solves the problems, such as, prompts to carry out early warning；
5, the phenomenon feature in special smelting furnace such as closed calcium carbide furnace, vacuum smelting furnace gas leak and oxygen sucking furnace
Parameter is that equipment nearby has negative pressure in coal gas and furnace to weaken or disappear, by issuing report to the above detection instrument superscalar data
Alert signal stops in emergency beyond safe early warning quota with regard to starting.
Further, mineral hot furnace safety in production early warning and data processing and logic judgment in emergency stopping system
Afterwards, except alarming and taking the measure of stopping in emergency, system automatically prompts the reason of causing and how should handle.
Further, mineral hot furnace safety in production early warning and emergency stopping system are equipped with resident information system, for
Operator at any time inquires furnace operation regulation and safe operation regulation, safe operation index parameter.
After adopting the above structure, the present invention has the beneficial effect that：
1, real-time measurement is carried out to the cooling water flowed into and out in furnace by application high-precision flow measuring instrumentss, avoided
Cooling water largely flows into high temperature reaction zone, causes the accident；
2, electrode the height of paste column is measured using increased electrode paste level gauging instrument, is surveyed using high current
It measures instrument to measure electrode current, avoids furnace high-temperature detonation and the spray furnace of the soft or hard disconnected initiation of electrode, cause a serious accident；
3, it more thoroughly realizes and the technique and equipment operating parameter that cause safety accident is continuously detected in real time, supervised automatically
Depending on, give warning in advance, interlocking is stopped in emergency.
Specific embodiment
Present embodiment the technical solution adopted is that：It is using computer and measuring instrumentss as hardware, by measurement
Data carry out specific calculations and logic judgment, exceeded initiation early warning and stop in emergency；Its operating method is as follows：
1, real-time measurement is carried out to the cooling water flowed into and out in furnace by application high-precision flow measuring instrumentss（Electric furnace
Cooling water largely leaks into the phenomenon that burner hearth and reaction zone and characteristic parameter is cooling water inflow and outflow cooling water into furnace
Measure inequality）, then compare, when the cooling water inflow of outflow is less than the flow certain amount entered, and a certain cooling water
Outlet pipe temperature quickly increases, and has reached alarming value, is considered as it and is leaked, and issues alarm signal；When the cooling of outflow
When water is a large number of less than the flow entered, it is considered as it and significant leakage has occurred, initiation is stopped in emergency；
2, the height of paste column is measured using electrode paste level gauging instrument（Electrode soft or hard disconnected phenomenon and feature
Parameter is electrode paste liquid level rapid decrease, electrode current mutation）, when its numerical value rapid decrease, it is believed that electrode has occurred
Soft disconnected, system issues alarm signal, while Super-Current Measurement instrument measures electrode current, detects its current break, when
Instantaneous mutation has occurred in the electrode current of system detection, and quantity has reached setting value, be considered as electrode have occurred it is soft disconnected, immediately
Starting is stopped in emergency；When the electrode current of system detection instantaneously falls to zero, it is hard disconnected to illustrate that electrode has occurred, starting is tight immediately
Emergency stop vehicle；
3, in-furnace temperature is measured, and temperature trend is analyzed（Electrode cannot be inserted into furnace charge well
Phenomenon and characteristic parameter are that in-furnace temperature increases, and it is higher and higher to increase trend）, when in-furnace temperature raising and repeatedly fluctuation, hair
Exhibition trend is higher and higher, be considered as electrode insertion the bed of material it is excessively shallow, be easy cause spray furnace accident, issue alarm signal, remind operation
Worker takes measures, and electrode is inserted among furnace charge deeply；
4, pass through the measurement to furnace high-voltage side electric current, voltage（Equipment caused by electrical equipment excess load, overtemperature, superpressure
Burnout failure is characterized in supercurrent, excess load, ultra-voltage, overtemperature）, sending alarm signal is taken to overfulfiling the quota, reminds behaviour
Equipment safety operation is paid attention to as member；Furnace transformer temperature is measured, overfulfils the quota to temperature and takes sending alarm signal,
It takes starting to stop in emergency in the transformer for also continuing operation beyond safe early warning quota, detection is taken for electrical system resonance
Characteristic parameter increases device for eliminating harmonic, and the method for destroying condition of resonance solves the problems, such as, prompts to carry out early warning；
5, the phenomenon feature in special smelting furnace such as closed calcium carbide furnace, vacuum smelting furnace gas leak and oxygen sucking furnace
Parameter is that equipment nearby has negative pressure in coal gas and furnace to weaken or disappear, by issuing report to the above detection instrument superscalar data
Alert signal stops in emergency beyond safe early warning quota with regard to starting.
Further, mineral hot furnace safety in production early warning and data processing and logic judgment in emergency stopping system
Afterwards, except alarming and taking the measure of stopping in emergency, system automatically prompts the reason of causing and how should handle.
Further, mineral hot furnace safety in production early warning and emergency stopping system are equipped with resident information system, for
Operator at any time inquires furnace operation regulation and safe operation regulation, safe operation index parameter.
The working principle of this specific embodiment:：Using computer and measuring instrumentss as hardware, by being carried out to measurement data
Specific calculations and logic judgment, exceeded initiation early warning and stop in emergency.
After adopting the above structure, present embodiment has the beneficial effect that：Present embodiment provides mineral hot furnace safety
Early warning and emergency stopping system are produced, it is more thoroughly real other than having the protection of conventional security strategy means and security preparedness
The technique and equipment operating parameter that cause safety accident are continuously detected when real, monitored automatically, given warning in advance, interlocking is tight
Emergency stop vehicle, security reliability are higher.
The above is only used to illustrate the technical scheme of the present invention and not to limit it, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (3)
- Early warning and emergency stopping system 1. mineral hot furnace is kept the safety in production, it is characterised in that：It using computer and measuring instrumentss as hardware, By carrying out specific calculations and logic judgment to measurement data, exceeded initiation early warning and stop in emergency；Its operating method is as follows：(1), real-time measurement is carried out to the cooling water that flows into and out in furnace by application high-precision flow measuring instrumentss, then into Row comparison, when the cooling water inflow of outflow is less than the flow certain amount entered, and a certain cooling water outlet pipe temperature is quickly risen Height has reached alarming value, is considered as it and is leaked, and issues alarm signal；When the cooling water inflow of outflow is less than the stream entered When measuring a large number of, it is considered as it and significant leakage has occurred, initiation is stopped in emergency；(2), the height of paste column is measured using electrode paste level gauging instrument, it, can be with when its numerical value rapid decrease It is soft disconnected to think that electrode has occurred, system issues alarm signal, while Super-Current Measurement instrument measures electrode current, detection Its current break, when instantaneous mutation has occurred in the electrode current of system detection, quantity has reached setting value, is considered as electrode hair Give birth to soft disconnected, starting is stopped in emergency immediately；When the electrode current of system detection instantaneously falls to zero, illustrate that electrode has occurred firmly Disconnected, starting is stopped in emergency immediately；(3), in-furnace temperature is measured, and temperature trend is analyzed, when in-furnace temperature raising and repeatedly fluctuation, development Trend is higher and higher, be considered as electrode insertion the bed of material it is excessively shallow, be easy cause spray furnace accident, issue alarm signal, remind operative employee People takes measures, and electrode is inserted among furnace charge deeply；(4), by the measurement to furnace high-voltage side electric current, voltage, sending alarm signal is taken to overfulfiling the quota, reminds operator Pay attention to equipment safety operation；Furnace transformer temperature is measured, overfulfils the quota to temperature and takes sending alarm signal, to super The transformer that safe early warning quota also continues operation out takes starting to stop in emergency, and takes detection feature for electrical system resonance Parameter increases device for eliminating harmonic, and the method for destroying condition of resonance solves the problems, such as, prompts to carry out early warning；(5), special smelting furnace such as closed calcium carbide furnace, vacuum smelting furnace gas leak and oxygen suck the phenomenon characteristic parameter in furnace It is that equipment nearby has negative pressure in coal gas and furnace to weaken or disappear, by issuing alarm signal to the above detection instrument superscalar data Number, beyond safe early warning quota, starting is stopped in emergency.
- 2. mineral hot furnace safety in production early warning according to claim 1 and emergency stopping system, it is characterised in that：The mine Hot stove is kept the safety in production after early warning and data processing in emergency stopping system and logic judgment, is arranged except alarming and taking to stop in emergency It applies, system automatically prompts the reason of causing and how should handle.
- 3. mineral hot furnace safety in production early warning according to claim 1 and emergency stopping system, it is characterised in that：The mine Hot stove safety in production early warning and emergency stopping system are equipped with resident information system, for operator at any time for furnace operation regulation It is inquired with safe operation regulation, safe operation index parameter.
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| CN201710421714.3A CN107192258B (en) | 2017-06-07 | 2017-06-07 | Mineral hot furnace safety in production early warning and emergency stopping system |
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| CN107192258B true CN107192258B (en) | 2018-11-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514894B (en) * | 2019-07-24 | 2021-05-11 | 中石化南京工程有限公司 | Electric furnace short net cooling water system design method based on electric leakage safety |
| CN111380469B (en) * | 2020-04-29 | 2021-10-26 | 鄂尔多斯市君正能源化工有限公司 | Automatic measuring device and method for electrode paste height of submerged arc furnace |
| CN114518732A (en) * | 2022-02-10 | 2022-05-20 | 宁夏瑞资联实业有限公司 | Furnace control system of DCS submerged arc furnace |
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| CN101825400A (en) * | 2009-03-06 | 2010-09-08 | 中国恩菲工程技术有限公司 | Automatic control method of electrode deep insertion of submerged electric furnace |
| CN103307756A (en) * | 2013-07-18 | 2013-09-18 | 青岛特利尔新能源有限责任公司 | Control system for water-coal-slurry heat-conducting oil boiler |
| WO2015101714A1 (en) * | 2013-12-30 | 2015-07-09 | Outotec (Finland) Oy | Method and arrangement for measurement of electrode paste in an electrode column of an electric arc furnace |
| CN205843343U (en) * | 2016-07-18 | 2016-12-28 | 亿利洁能股份有限公司达拉特分公司 | Furnace of calcium carbide electrode paste post self-operated measuring unit |
| CN106292586A (en) * | 2016-08-15 | 2017-01-04 | 潍柴动力股份有限公司 | The cooling water monitoring system of furnace cupola |
-
2017
- 2017-06-07 CN CN201710421714.3A patent/CN107192258B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08271153A (en) * | 1995-03-30 | 1996-10-18 | Nisshin Steel Co Ltd | Method and device for detecting water leakage in heating equipment |
| CN101825400A (en) * | 2009-03-06 | 2010-09-08 | 中国恩菲工程技术有限公司 | Automatic control method of electrode deep insertion of submerged electric furnace |
| CN103307756A (en) * | 2013-07-18 | 2013-09-18 | 青岛特利尔新能源有限责任公司 | Control system for water-coal-slurry heat-conducting oil boiler |
| WO2015101714A1 (en) * | 2013-12-30 | 2015-07-09 | Outotec (Finland) Oy | Method and arrangement for measurement of electrode paste in an electrode column of an electric arc furnace |
| CN205843343U (en) * | 2016-07-18 | 2016-12-28 | 亿利洁能股份有限公司达拉特分公司 | Furnace of calcium carbide electrode paste post self-operated measuring unit |
| CN106292586A (en) * | 2016-08-15 | 2017-01-04 | 潍柴动力股份有限公司 | The cooling water monitoring system of furnace cupola |
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Effective date of registration: 20190410 Address after: 750004 Yinchuan iBi, 490 Ning'an Avenue, Jinfeng District, Yinchuan City, Ningxia Hui Autonomous Region, Room 302, Building 6, Phase II Patentee after: Ningxia Huilida Industrial Intelligent Control Technology Co., Ltd. Address before: 750000 Ningxia Hui Autonomous Region Yinchuan Xingqing District Ningxia International Commodity Exchange Center East Distribution Building Shop Area 3F3-18, 20 Patentee before: Ningxia Golden Road Amperex Technology Limited |