CN207659471U - Blast-furnace hot-air wind-warm syndrome monitoring device - Google Patents
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Abstract
The utility model discloses a kind of blast-furnace hot-air wind-warm syndrome monitoring devices.The device includes：Temperature sensor measures blast-furnace hot-air wind-warm syndrome；Temperature collecting cell, control temperature sensor acquire practical wind-warm syndrome with predeterminated frequency, obtain the collection point of predetermined quantity；Parameter calculation unit obtains the actual value of each temperature parameter according to each practical wind-warm syndrome acquired in the collection point of predetermined quantity；Threshold value comparison unit obtains the first comparison result value if in corresponding threshold value, otherwise obtains the second comparison result value by the actual value of each temperature parameter respectively with corresponding threshold value comparison；Comprehensive descision unit carries out comprehensive descision to the comparison result value of each temperature parameter, obtains monitored results.The utility model is by analyzing temperature cycle, the period temperature difference, Periodic Mean, period median and periodic deviation, comprehensive descision, precise vernier adjustment foundation is provided for production operation, macro adjustments and controls foundation is provided for technical supervisor, is the ancillary technique for promoting the production of Blast Furnace Intelligent metaplasia.
Description
Technical field
The utility model is related to Blast Furnace Iron-making Production Technology field more particularly to a kind of blast-furnace hot-air wind-warm syndrome monitoring devices.
Background technology
Blast fumance technique is：From furnace roof be packed into iron ore, coke, slag making flux, from lower furnace air port be blown into through
The air of preheating, the carbon monoxide that the carbon under high temperature in the auxiliary fuels such as coke is generated with the oxygen burning blasted in air, in stove
The oxygen in iron ore is removed in interior uphill process, to which reduction obtains iron.Blast-furnace hot-air wind-warm syndrome refers to just being blown into from air port through pre-
The temperature of the air of heat, also referred to as wind pushing temperature.Under present level, practical wind-warm syndrome is that fluctuation is uneven, the constant temperature of perfect condition
Or it is impossible.Stable, accurate blast-furnace hot-air wind-warm syndrome is one of the basic condition parameter for stablizing conditions of blast furnace operation.
The China's application for entitled " control of Control of hot-blast of alter-parallel blasting from stove of blast furnace temperature " that June 13 in 1985 submits
CN85104443A, disclose it is a kind of for blast funnace hot blast stove air-supply staggered parallel blowing method, to be furnished with three and three with
The air-supply of every hot-blast stove is divided into three phases by the blast furnace of upper hot-blast stove：Air-supply early period, mid-term air-supply and later stage air-supply.Often
Air-supply early period of seat hot-blast stove is in parallel with the later stage air-supply of its leading stove, its later stage air-supply and the early period of row stove thereafter is blown
It is in parallel, its mid-term air-supply is that this stove list stove is blown, by the respective cold flow of hot-blast stove for adjusting two air-supplies in parallel
Regulating valve is gradually opened, gradually closes action to complete the temperature control of staggered parallel blowing.In the air-supply stage in parallel, it is to close that mixed wind butterfly, which is cut down,
It closes, cold wind is not mixed into hot-blast main, blow the stage in single stove, the cold flow regulating valve of this hot-blast stove keeps complete
It opens, and the mixed wind butterfly of opening is cut down and is mixed into cold wind into hot-blast main.
Above-mentioned existing blast funnace hot blast stove temprature control method is to stablize a kind of effective ways of blast-furnace hot-air wind-warm syndrome, but be somebody's turn to do
Only by switch motion to shake the thermostatic control that method realizes hot wind in method, not to characterizing current hot blast temperature variation
Parameters are detected in real time, can not judge degree of fluctuation when fluctuating, occur the case where beyond temperature threshold also without
Method realizes that prompt, printenv regulate and control according to realization Blast Furnace Intelligentization is unfavorable for.
Utility model content
The utility model, which provides, a kind of can accurately be judged as the temperature parameter of practical blast-furnace hot-air wind-warm syndrome
Blast furnace regulation and control provide the blast-furnace hot-air wind-warm syndrome monitoring device of foundation.
In order to solve the above-mentioned technical problem, the utility model discloses following technical solutions：
It is proposed a kind of blast-furnace hot-air wind-warm syndrome monitoring device.The device includes：
Temperature sensor, for measuring blast-furnace hot-air wind-warm syndrome；
Temperature collecting cell acquires actual blast-furnace hot-air wind-warm syndrome with predeterminated frequency for controlling temperature sensor 171, obtains
To the collection point of predetermined quantity；
Parameter calculation unit, for according to each practical blast-furnace hot-air wind-warm syndrome acquired in the collection point of predetermined quantity, obtaining
To the actual value of every temperature parameter, wherein every temperature parameter include temperature cycle, the period temperature difference, Periodic Mean, in the period
Digit and periodic deviation；
Threshold value comparison unit, for by the actual value of obtained every temperature parameter respectively compared with corresponding predetermined threshold value
Comparison result value is obtained, the first comparison result value for indicating corresponding comparison result is obtained if in corresponding predetermined threshold value,
Otherwise the second comparison result value for indicating corresponding comparison result is obtained；
Comprehensive descision unit, the comparison result value for every temperature parameter to obtaining carry out comprehensive descision, obtain height
Stove hot wind wind-warm syndrome monitored results.
The industrial control microcomputer phase that PLC interface and blast furnace are passed through for above-mentioned blast-furnace hot-air wind-warm syndrome monitoring device, temperature sensor
Even, temperature collecting cell, parameter calculation unit, threshold value comparison unit and comprehensive descision unit are located on industrial control microcomputer.
1) the utility model passes through to temperature cycle, the period temperature difference, Periodic Mean, period median and periodic deviation
Equal temperature parameters are analyzed, and are formed comprehensive descision, are provided precise vernier adjustment foundation for production operation, provided for technical supervisor
Macro adjustments and controls foundations are effective ancillary techniques for promoting the production of Blast Furnace Intelligent metaplasia.
2) by the calculating of the science formula of temperature parameter and threshold decision, blast-furnace hot-air wind-warm syndrome monitored results is obtained, are avoided
Experiential operating, improves actual production efficiency.The utility model design is simple, reliable for operation, is answered suitable for blast fumance popularization
With.
Description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the utility model
A part for embodiment is intended only as example and is used for explaining the utility model embodiment, do not constitute and implement to the utility model
The improper restriction of example.In the accompanying drawings：
Fig. 1 is the blast furnace system structure with blast-furnace hot-air wind-warm syndrome monitoring device that the utility model one embodiment provides
Schematic diagram；
Fig. 2 is the flow chart for the blast-furnace hot-air wind-warm syndrome monitoring method that the utility model one embodiment provides.
Specific implementation mode
It is specific below in conjunction with the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
Only it is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
It is new to belong to this practicality for the every other embodiment that those of ordinary skill is obtained without making creative work
The range of type protection.
The (if present)s such as term " first ", " second " in specification and claims and above-mentioned attached drawing are to be used for area
Not similar part, without being used to describe specific sequence or precedence.It should be appreciated that the data used in this way are appropriate
In the case of can be interchanged, so that embodiments herein described herein can be real with the sequence other than illustrating herein
It applies.
In order to meet blast furnace operating regulate and control demand, the utility model by temperature cycle, the period temperature difference, Periodic Mean,
Five temperature parameters of period median and periodic deviation are analyzed, and can quickly be formed comprehensive descision, be provided for production operation
Precise vernier adjustment foundation, for technical supervisor provides macro adjustments and controls foundation.
Fig. 1 is the blast furnace system structure with blast-furnace hot-air wind-warm syndrome monitoring device that the utility model one embodiment provides
Schematic diagram.The blast furnace system 1 includes：3 hot-blast stoves 11,3 hot-blast stoves being connected to respectively with the air outlet of each hot-blast stove are sent
Wind pipeline 12, each hot-blast stove air supply duct control valve 13 being separately positioned on each hot-blast stove air supply duct 12, blast furnace 14,
It is connected to the blast-furnace hot-air pipeline 15 between 3 hot-blast stove air supply ducts 12 and blast furnace 14, is arranged on blast-furnace hot-air pipeline 15
Blast-furnace hot-air pipeline control valve 16 and blast-furnace hot-air wind-warm syndrome monitoring device 17.
Blast-furnace hot-air wind-warm syndrome monitoring device 17 includes temperature sensor 171, temperature collecting cell 172, temperature parameter calculating
Unit 173, threshold value comparison unit 174 and comprehensive descision unit 175.Wherein, temperature sensor 171 is for measuring blast furnace heat
Wind wind-warm syndrome, temperature sensor 171 are, for example, hot blast temperature meter.Temperature sensor 171 can be arranged in the blast-furnace hot-air pipeline 15,
Between blast-furnace hot-air pipeline control valve 16 and blast furnace 14.Temperature collecting cell 172 is for controlling temperature sensor 171 with default frequency
Rate acquires actual blast-furnace hot-air wind-warm syndrome, obtains the collection point of predetermined quantity.Parameter calculation unit 173 is used for according in predetermined number
Each practical blast-furnace hot-air wind-warm syndrome of the collection point acquisition of amount, obtains the actual value of every temperature parameter, wherein every temperature ginseng
Number includes temperature cycle, the period temperature difference, Periodic Mean, period median and periodic deviation.Threshold value comparison unit 174 will be for that will obtain
To the actual value of every temperature parameter relatively obtain comparison result value with corresponding predetermined threshold value respectively, if corresponding pre-
If then obtaining the first comparison result value for indicating corresponding comparison result in threshold value, otherwise obtains and indicate the second of corresponding comparison result
Comparison result value.Comprehensive descision unit 175 is used to carry out comprehensive descision to the comparison result value of the every temperature parameter obtained, obtains
To blast-furnace hot-air wind-warm syndrome monitored results.
Temperature sensor 171 can be connected by PLC interface with the industrial control microcomputer of blast furnace 14.Temperature collecting cell 172, ginseng
Number computing unit 173, threshold value comparison unit 174 and comprehensive descision unit 175 can be located on the industrial control microcomputer of blast furnace 14.
Temperature collecting cell 172 is further used for exporting the temperature acquired in each collection point pass corresponding with the acquisition moment
It is curve.
Parameter calculation unit 173 is further used for that the actual value of every temperature parameter is calculated by following formula：Temperature
The interval time of period=adjacent collection point substantially heated up is spent, substantially heating can be the temperature difference >=10 before and after adjacent collection point
℃；The minimum temperature in maximum temperature-period of the period temperature difference=in the period；All collecting temperature values is flat in Periodic Mean=period
Mean；The median of all collecting temperature values of period median=in the period.Periodic deviation=Periodic Mean and period median
Difference absolute value.
Comprehensive descision unit 175 is further used for adding up to the comparison result value of the every temperature parameter obtained, root
Blast-furnace hot-air wind-warm syndrome monitored results are obtained according to the numberical range residing for aggregate value.Assuming that the first comparison result value is 1, second compares
End value is 0, and blast-furnace hot-air wind-warm syndrome monitored results are normal and not display data when aggregate value is 5, when aggregate value is 4-3
Blast-furnace hot-air wind-warm syndrome monitored results are to fluctuate and show the actual value and predetermined threshold value of the temperature parameter that comparison result value is 0,
Blast-furnace hot-air wind-warm syndrome monitored results are exception and show the reality for the temperature parameter that comparison result value is 0 when aggregate value is 2-1
Value and threshold value, blast-furnace hot-air wind-warm syndrome monitored results are failure and show every when continuous abnormal pre-determined number or aggregate value are 0
The actual value and predetermined threshold value of one temperature parameter.
If it find that monitored results are " normal ", then repeat monitoring temperature according to current predetermined threshold value.If hair
Existing monitored results are that " fluctuation " then searches reason in time, are found after reason according to cause type progress respective handling.If it is
Accidental cause then eliminates factor, if it is system reason then according to actually revising rational predetermined threshold value.If it find that monitoring knot
Fruit is "abnormal", then pays close attention to monitoring interface, for example checks within original 30 minutes and be once changed to check within 5-10 minutes once, as early as possible
It searches reason and makes corresponding operating adjustment.If it find that monitored results are " failure ", then reason is searched immediately and is made corresponding
Operation adjustment.
Fig. 2 is the flow chart for the blast-furnace hot-air wind-warm syndrome monitoring method that the utility model one embodiment provides.Such as Fig. 2 institutes
Show, blast-furnace hot-air wind-warm syndrome monitoring method includes the following steps：
Step S101 acquires actual blast-furnace hot-air wind-warm syndrome with predeterminated frequency, obtains the collection point of predetermined quantity.Default frequency
Rate can be at least 1-2 beats/min.The detailed process of temperature acquisition is：It completes blast-furnace hot-air wind-warm syndrome online acquisition and inputs work
Control microcomputer, you can to use temperature sensor 171, by PLC interface, blast-furnace hot-air actual temperature value is acquired by predeterminated frequency,
Blast furnace industrial control microcomputer is accessed, and draws real-time recording curve, horizontal axis is the time, the longitudinal axis is temperature.It can be in the industry control of blast furnace 14
The temperature acquired on each collection point and acquisition moment correspondence curve are exported on Interface of Computer.
Step S102 obtains every temperature according to each practical blast-furnace hot-air wind-warm syndrome acquired in the collection point of predetermined quantity
Spend the actual value of parameter, wherein every temperature parameter includes temperature cycle, the period temperature difference, Periodic Mean, period median and week
Phase deviation.Detailed process is：Actual temperature cycle, the period temperature difference, period are calculated according to the calculation formula of every temperature parameter
Mean value, period median and periodic deviation.Wherein, the actual value of temperature cycle is calculated as：When the latter acquisition in adjacent collection point
The time for carving latter acquisition moment when substantially heating up relative to the previous acquisition moment is periodic knot, when the acquisition of adjacent collection point
The difference carved is temperature cycle value, substantially the temperature difference >=10 DEG C before and after the heating for example, two neighboring temperature acquisition moment.The period temperature difference
Actual value be calculated as：It takes maximum temperature in temperature cycle to subtract minimum temperature in temperature cycle, is period temperature difference.Period
The actual value of mean value is calculated as：Average is calculated to the temperature value of all acquisitions in temperature cycle, is Periodic Mean.In period
The actual value of digit is calculated as：The median of all collecting temperature values in temperature cycle is taken, if collection point in temperature cycle
For odd number then median be intermediate collection point acquisition temperature, if collection point in temperature cycle is even number in position
The average value for the temperature that number acquires for intermediate two collection points.The actual value of periodic deviation is calculated as：Take Periodic Mean and week
The absolute value of the difference of interim digit is periodic deviation.
It is above-mentioned items temperature parameter formula calculating may be used common office software such as Excel or Foxpro etc. or
Person other on-line monitoring and controlling softs edit calculation formula, by industrial control microcomputer complete temperature cycle, the period temperature difference, Periodic Mean,
The calculating of period median and periodic deviation.
Step S103, compared with the actual value of obtained every temperature parameter is relatively obtained with corresponding predetermined threshold value respectively
End value obtains the first comparison result value for indicating corresponding comparison result, if right if in corresponding predetermined threshold value
The second comparison result value for indicating corresponding comparison result is then obtained outside the predetermined threshold value answered.
Above-mentioned comparison step can be completed by industrial control microcomputer, by setting rational predetermined threshold value, to the temperature being calculated
Spend the period, the period temperature difference, Periodic Mean, period median and periodic deviation carry out logic judgment, obtain the according to judging result
One comparison result value or the second comparison result value.
Rational predetermined threshold value, including the predetermined threshold value of temperature cycle, the predetermined threshold value of the period temperature difference, period is previously set
Predetermined threshold value, the predetermined threshold value of period median and the predetermined threshold value of periodic deviation of mean value, according to actual production capacity and
Process configuration situation determines each predetermined threshold value, changes, limits the production, carries there is system reason change such as iron ore material
When any one of production and hot-blast stove failure etc. situation or a variety of situations, predetermined threshold value is adjusted in time.
Editorial logic formula, for the reality of temperature cycle, the period temperature difference, Periodic Mean, period median and periodic deviation
Border calculated value carries out logic judgment respectively.If any one temperature parameter such as temperature cycle is right in this five temperature parameters
, it is concluded that indicating first comparison result value of the temperature parameter in corresponding predetermined threshold value, first compares in the predetermined threshold value answered
End value is such as 1.If any one temperature parameter such as temperature cycle is in corresponding default threshold in this five temperature parameters
, it is concluded that indicating second comparison result value of the temperature parameter outside corresponding predetermined threshold value, the second comparison result value is such as in value
It is 0.
Step S104 carries out comprehensive descision to the comparison result value of the every temperature parameter obtained, obtains blast-furnace hot-air wind
Warm monitored results.Detailed process is：This five respective comparison result values of parameter are added up to, according to the conjunction of comparison result value
Numberical range residing for evaluation obtains blast-furnace hot-air wind-warm syndrome monitored results, and monitored results include normal, fluctuate, abnormal and event
Hinder four types.
Assuming that indicating that first comparison result value of the temperature parameter in corresponding predetermined threshold value is 1, indicate that temperature parameter exists
The second comparison result value outside corresponding predetermined threshold value is 0.To temperature cycle, the period temperature difference, Periodic Mean, period median and
The comparison result value of periodic deviation is added up to, and in the monitoring interface display monitoring result and data of the industrial control microcomputer of blast furnace.
Temperature monitoring result is normal and not display data when aggregate value is 5, when aggregate value is 4-3 temperature monitoring result be fluctuation simultaneously
And showing that comparison result value is the actual value and predetermined threshold value of 0 temperature parameter, temperature monitoring result is different when aggregate value is 2-1
Often and show that comparison result value is the actual value and predetermined threshold value of 0 temperature parameter, continuous abnormal such as 3-5 times or total
Temperature monitoring result is failure and shows the actual value and predetermined threshold value of five parameters when value is 0.
The embodiment can also include the following steps：If it find that monitored results are " normal ", then preset according to current
Threshold value repeats monitoring temperature.If it find that monitored results are " fluctuation " then searches reason in time, basis after reason is found
Cause type carries out respective handling.Factor is then eliminated if it is accidental cause, according to actually revising conjunction if if it is system reason
The predetermined threshold value of reason.If it find that monitored results are "abnormal", then monitoring interface is paid close attention to, for example original 30 minutes check
It is primary to be changed to check for 5-10 minutes once, reason is searched as early as possible and makes corresponding operating adjustment.If it find that monitored results are " event
Barrier " then searches reason and makes corresponding operating adjustment immediately.
It is as follows that relevant whole operation process is monitored with blast-furnace hot-air wind-warm syndrome：The industrial control microcomputer related interfaces of blast furnace are opened,
Rational predetermined threshold value is set or adjusted according to practical blast fumance and Process configuration situation；Run the monitoring of blast-furnace hot-air wind-warm syndrome
Method；If it find that monitored results are " normal ", then blast-furnace hot-air wind-warm syndrome monitoring is carried out again according to current threshold value.If hair
Existing monitored results are that " fluctuation " then searches reason in time, are found after reason according to cause type progress respective handling.If it is
Accidental cause then eliminates factor, if it is system reason then according to actually revising rational predetermined threshold value.If it find that monitoring knot
Fruit is "abnormal", then pays close attention to monitoring interface, for example checks within original 30 minutes and be once changed to check within 5-10 minutes once, as early as possible
It searches reason and makes corresponding operating adjustment.If it find that monitored results are " failure ", then reason is searched immediately and is made corresponding
Operation adjustment.
The technical solution of the utility model is further illustrated below by concrete instance.
With Laigang 1080m3For blast furnace system, blast furnace configures three card Shandong goldentop burning type hot-air furnaces, can meet 1150 DEG C
- 1250 DEG C of wind-warm syndrome requirement.
The first step, parameter acquisition.Using hot blast temperature meter, by PLC interface, by 1 beat/min of frequency collection blast furnace heat
Wind actual temperature value, accesses the industrial control microcomputer of blast furnace, and draws real-time recording curve, and horizontal axis is the time, the longitudinal axis is temperature.Such as
Following table 1 shows 76 temperature of 76 collection points that the frequency collection blast-furnace hot-air actual temperature with 1 beat/min is worth to
Value：
Table 1 is the example of one group of blast-furnace hot-air wind-warm syndrome gathered data of the utility model
Second step, formula calculate.Temperature cycle, the period temperature difference, Periodic Mean, period median are completed by industrial control microcomputer
With the calculating of periodic deviation, wherein the interval time of temperature cycle=adjacent collection point substantially heated up, substantially heating can be
The temperature difference >=10 DEG C before and after adjacent collection point.Minimum temperature in maximum temperature-temperature cycle in the period temperature difference=temperature cycle.Period
The average of all collecting temperature values in mean value=temperature cycle.All collecting temperature values in period median=temperature cycle
Median.The absolute value of periodic deviation=Periodic Mean and the difference of period median.76 temperature acquisition points shown in table 1
In, collection point 11 is first adjacent collection point substantially heated up, and collection point 71 is second adjacent collection point substantially heated up.
Time interval=60*1 minutes=60 minutes of temperature cycle=adjacent collection points (71-11) *.Periodic Mean is from collection point 11
1202.55 DEG C of the average value of 60 temperature values acquired to 60 collection points between collection point 71.The period temperature difference is from collection point
49.2 DEG C of the difference of maximum temperature and minimum temperature in 11 60 temperature values acquired to 60 collection points between collection point 71.Period
Median is two 40 Hes of collection point among 60 temperature values acquired from collection point 11 to 60 collection points collection point 71
1202 DEG C of the average value of 41 temperature value.Periodic deviation is 0.55 DEG C of the absolute value of Periodic Mean and the difference of period median.
Third walks, and function judges.Set rational predetermined threshold value, to be calculated actual temperature cycle, period temperature
Difference, Periodic Mean, period median and periodic deviation carry out logic judgment, defeated under industrial control microcomputer hot wind wind-warm syndrome curve interface
Go out comparison result value.The practical calculated value difference of temperature cycle, the period temperature difference, Periodic Mean, period median and periodic deviation
It makes comparisons with corresponding predetermined threshold value, comparison result value is 1 if in corresponding threshold value, if outside corresponding threshold value
Comparison result value is 0.Wherein, reasonable threshold value, including temperature are preset according to actual production capacity and Process configuration situation
Ct value, period temperature difference threshold, Periodic Mean threshold value, period median threshold value and periodic deviation threshold value.For example, for table 1
Example, the threshold value in preset temperature period is 58-62 minute, and the threshold value of Periodic Mean is 1200 DEG C -1205 DEG C, the period temperature difference
Threshold value be 45 DEG C -55 DEG C, the threshold value of period median is 1185 DEG C -1215 DEG C, and the threshold value of periodic deviation is 0 DEG C -2 DEG C.Cause
For temperature cycle actual value 60 minutes in threshold value 58-62 minutes of temperature cycle, so the comparison result value of temperature cycle
It is 1.Because 1202.55 DEG C of the actual value of Periodic Mean is in 1200 DEG C -1205 DEG C of the threshold value of Periodic Mean, Periodic Mean
Comparison result value be 1.Because 49.2 DEG C of the actual value of the period temperature difference is in 45 DEG C -55 DEG C of the threshold value of the period temperature difference, all
The comparison result value of the phase temperature difference is 1.Because of 1185 DEG C of the threshold value-of 1202 DEG C of the actual value of period median digit in the cycle
In 1215 DEG C, so the comparison result value of period median is 1.Because 0.55 DEG C of the actual value of periodic deviation is in periodic deviation
In 0 DEG C -2 DEG C of threshold value, so the comparison result value of periodic deviation is 1.
4th step obtains temperature monitoring result.The comparison result value of five temperature parameters is added up to.Aggregate value is 5
When, it exports " normal " and no data shows that the aggregate value of the comparison result value of five temperature parameters is 5 in the example of table 1.
When aggregate value is 4-3, exports " fluctuation " and show that comparison result value is the actual value and threshold value of 0 temperature parameter.Aggregate value
For 2-1 when, export "abnormal" and show comparison result value be 0 temperature parameter actual value and threshold value.Continuous appearance is " different
Often " such as 3-5 times when or aggregate value be 0 when, export " failure " and show five temperature parameters actual value and threshold value.
In fact, blast-furnace hot-air wind-warm syndrome is changed from high to low with certain temperature cycle, next cycle temperature equally from
High to Low variation, moves in circles.If it find that monitoring temperature result is fluctuation, exception or failure then searches reason in time, search
Reason will be adjusted in time if it find that system reason change such as iron ore material changes, limits the production, putting forward production, hot-blast stove failure etc.
The threshold value of temperature parameter.Such as because iron ore material variation causes the actual value of temperature cycle to become smaller, if it is pre- less than original
If temperature cycle threshold value, then operating personnel are according to the actual value and threshold of the monitoring temperature result of output and the temperature cycle of display
Value searches the reason of temperature cycle fluctuates, and then finds that iron ore material changes, at this moment resets temperature cycle
Threshold value, then carry out blast-furnace hot-air wind-warm syndrome monitoring again.
It is as follows that relevant whole operation process is monitored with blast-furnace hot-air wind-warm syndrome：Open blast furnace industrial control microcomputer related interfaces, root
Factually border blast fumance and Process configuration situation set or adjust rational predetermined threshold value；Run blast-furnace hot-air wind-warm syndrome monitoring side
Method；If it find that monitored results are " fluctuation " then searches reason in time, find after reason according to cause type progress corresponding position
Reason.Factor is then eliminated if it is accidental cause, according to actually revising reasonable threshold value if if it is system reason.If it find that monitoring
As a result it is "abnormal", then pays close attention to monitoring interface, for example check within original 30 minutes and be once changed to check for 5-10 minutes once, to the greatest extent
It is fast to search reason and make corresponding operating adjustment.If it find that monitored results are " failure ", then reason is searched immediately and makes phase
Answer operation adjustment.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacement；And these modifications or replacements, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (1)
1. a kind of blast-furnace hot-air wind-warm syndrome monitoring device, which is characterized in that including：
Temperature sensor (171), for measuring blast-furnace hot-air wind-warm syndrome；
Temperature collecting cell (172) acquires actual blast-furnace hot-air wind for controlling temperature sensor (171) with predeterminated frequency
Temperature obtains the collection point of predetermined quantity；
Parameter calculation unit (173), for according to each practical blast-furnace hot-air wind-warm syndrome acquired in the collection point of predetermined quantity, obtaining
To the actual value of every temperature parameter, wherein every temperature parameter include temperature cycle, the period temperature difference, Periodic Mean, in the period
Digit and periodic deviation；
Threshold value comparison unit (174), for by the actual value of obtained every temperature parameter respectively with corresponding predetermined threshold value ratio
Comparison result value is relatively obtained, the first comparison result for indicating corresponding comparison result is obtained if in corresponding predetermined threshold value
Value, otherwise obtains the second comparison result value for indicating corresponding comparison result；
Comprehensive descision unit (175), the comparison result value for every temperature parameter to obtaining carry out comprehensive descision, obtain height
Stove hot wind wind-warm syndrome monitored results,
Wherein, temperature sensor (171) is connected by PLC interface with the industrial control microcomputer of blast furnace, temperature collecting cell (172), ginseng
Number computing unit (173), threshold value comparison unit (174) and comprehensive descision unit (175) are located on industrial control microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001128.5U CN207659471U (en) | 2017-08-11 | 2017-08-11 | Blast-furnace hot-air wind-warm syndrome monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001128.5U CN207659471U (en) | 2017-08-11 | 2017-08-11 | Blast-furnace hot-air wind-warm syndrome monitoring device |
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| Publication Number | Publication Date |
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| CN207659471U true CN207659471U (en) | 2018-07-27 |
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| CN201721001128.5U Active CN207659471U (en) | 2017-08-11 | 2017-08-11 | Blast-furnace hot-air wind-warm syndrome monitoring device |
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2017
- 2017-08-11 CN CN201721001128.5U patent/CN207659471U/en active Active
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