CN104390690B - A kind of electric cleaner removes the calibration method and device of dust quantity - Google Patents
A kind of electric cleaner removes the calibration method and device of dust quantity Download PDFInfo
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- CN104390690B CN104390690B CN201410776764.XA CN201410776764A CN104390690B CN 104390690 B CN104390690 B CN 104390690B CN 201410776764 A CN201410776764 A CN 201410776764A CN 104390690 B CN104390690 B CN 104390690B
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Abstract
The invention provides the calibration method that a kind of electric cleaner removes dust quantity, the real-time measurement system that dust quantity is removed for measuring the electric cleaner is installed in the dust pelletizing system of the electric cleaner, closed belt scale is installed in the downstream of total scraper ash-transmission machine, the closed belt scale is used for the instantaneous delivery for detecting the dedusting ash for not flowing through the closed belt scale in the same time in electric cleaner dust removal process；Methods described includes：Obtain in first time period except the relation between dust quantity actual value and dedusting measurement；Using the relation except between dust quantity actual value and dedusting measurement, the dedusting measurement in any duration in second time period is calibrated, the initial time of the second time period is the end time of the first time period.By this method can obtain in any duration except the exact value of dust quantity.In addition, present invention also offers the calibrating installation that a kind of electric cleaner removes dust quantity.
Description
Technical field
The calibration method and device of dust quantity are removed the present invention relates to electrostatic precipitation technology field, more particularly to a kind of electric cleaner.
Background technology
The function of electric cleaner is to be removed the particle flue dust discharged in flue gas, and air is discharged into so as to be greatly lowered
Fume amount in layer, this is to improve environmental pollution, improves the important environmental protection equipment of air quality.
In electric cleaner dust removal process, except dust quantity is an important production target.In sintering circuit, electric cleaner
Except dust quantity can reflect health status, the sintering production state of electric dust-removing equipment.Further, the real-time of electric cleaner removes dust quantity also
Data foundation can be provided for the vibrated system of accurate control electric cleaner.
In order to obtain the dust quantity that removes of electric cleaner in real time, Fig. 1 shows that a kind of electric cleaner removes the real-time survey of dust quantity
The structure of amount system.From figure 1 it appears that the measuring system includes being arranged on the flue gas flow at flue gateway
The detecting instruments such as meter, dust concentration meter and the measuring unit for data processing.
But the measurement accuracy of examined instrument and the degree of accuracy and installation site and flue air flow method etc. are objective
The limitation of condition, there may be deviation, thus, using real-time between measured value and actual value that the detecting instrument of gateway is measured
Measuring system can not obtain the actual value that electric cleaner removes dust quantity.
The content of the invention
In view of this, the first aspect of the present invention provides the calibration method that a kind of electric cleaner removes dust quantity, is removed with correcting
Dust quantity real-time measurement system measure except the measured value of dust quantity so that after correction except dust quantity, to be equal to electric cleaner true except dust quantity
Real value.
Based on the first aspect of the present invention, the second aspect of the present invention provides the calibration cartridge that a kind of electric cleaner removes dust quantity
Put.
In order to reach foregoing invention purpose, present invention employs following technical scheme：
A kind of electric cleaner removes the calibration method of dust quantity, is provided with the dust pelletizing system of the electric cleaner for measuring
The electric cleaner removes the real-time measurement system of dust quantity, and closed belt scale is provided with the downstream of total scraper ash-transmission machine, described close
Strip of paper used for sealing belt scale is used to detect the instantaneous of the dedusting ash for not flowing through the closed belt scale in the same time in electric cleaner dust removal process
Flow；
The calibration method includes：
Obtain in first time period except the relation between dust quantity actual value and dedusting measurement, the dedusting measurement
By on electric cleaner except dust quantity real-time measurement system is obtained, it is described except dust quantity actual value passes through the closed belt
Scale detection is obtained；
Using the relation except between dust quantity actual value and dedusting measurement, to any duration in second time period
Interior dedusting measurement is calibrated, and the initial time of the second time period is the end time of the first time period.
A kind of electric cleaner removes the calibrating installation of dust quantity, is provided with the dust pelletizing system of the electric cleaner for measuring
The electric cleaner removes the real-time measurement system of dust quantity, and closed belt scale is provided with the downstream of total scraper ash-transmission machine, described close
Strip of paper used for sealing belt scale is used to detect the instantaneous of the dedusting ash for not flowing through the closed belt scale in the same time in electric cleaner dust removal process
Flow；
The calibrating installation includes：
Acquisition module, for obtaining in first time period except the relation between dust quantity actual value and dedusting measurement, institute
Dedusting measurement is stated by the way that, except dust quantity real-time measurement system is obtained, the dust quantity actual value of removing is led on electric cleaner
The closed belt scale detection is crossed to obtain；
Calibration module, for using the relation except between dust quantity actual value and dedusting measurement, to the second time
The dedusting measurement in any duration in section is calibrated, and the initial time of the second time period is the very first time
The end time of section.
Compared to prior art, the invention has the advantages that：
By electric cleaner the actual value that dust quantity removes dust quantity with electric cleaner is removed except what dust quantity real-time measurement system measurement was obtained
Between error be systematic error.The systematic error is stable in certain period of time, so in certain period of time, by this
There is a ratio more fixed between the measured value except dust quantity and the actual value except dust quantity that real-time measurement system is obtained to close
System, therefore, as long as obtaining the proportionate relationship between dedusting measurement and the actual value in any time period in the period,
Just using the proportionate relationship measured value calibrate thus also with regard to the actual value except dust quantity can be obtained.
Therefore, electric cleaner provided in an embodiment of the present invention is except in the calibration method of dust quantity, setting electric cleaner is first
Systematic error in the total period of period and second time period is basicly stable, so, it is believed that in first time period
Except in the relation and second time period between dust quantity actual value and dedusting measurement except dust quantity actual value and dedusting measurement
Relationship consistency between value.It therefore, it can utilize removing between dust quantity actual value and dedusting measurement in first time period
Relation go to calibrate in second time period except the measured value of dust quantity so that it is actual except dust quantity to accurately obtain electric cleaner.Due to
Second time period is located at after first time period, therefore using the electric cleaner of the invention provided except the calibration method of dust quantity is obtained
Except dust quantity can with the control of the processing parameter during Instructing manufacture, be conducive to improve electric cleaner efficiency of dust collection.
Brief description of the drawings
, below will be in the description present invention and prior art in order to which the technical scheme of the present invention and prior art is expressly understood
Embodiment when the accompanying drawing used do a brief description.It should be evident that these accompanying drawings are only the part realities of the present invention
Example is applied, those of ordinary skill in the art can also obtain other accompanying drawings on the premise of creative work is not paid.
Fig. 1 is the electric precipitation of electric cleaner and its structural representation of ash-transmission system；
The calibration system structural representation for removing dust quantity in real time of Fig. 2 electric cleaners provided in an embodiment of the present invention；
Fig. 3 is the calibration method schematic flow sheet that electric cleaner provided in an embodiment of the present invention removes dust quantity；
Fig. 4 is to be removed in acquisition first time period provided in an embodiment of the present invention between dust quantity actual value and dedusting measurement
The schematic flow sheet of relation；
Fig. 5 is the closed belt scale provided in an embodiment of the present invention that obtains from the first moment T1 to the second this period at moment T2
The dedusting ash weight G of detection in sectionIt is realSchematic flow sheet；
Fig. 6 is the schematic flow sheet provided in an embodiment of the present invention for judging the method whether electric field ash-storing bin empties；
Fig. 7 is electric cleaner provided in an embodiment of the present invention except the structural representation of the calibrating installation of dust quantity；
Fig. 8 is the structural representation of acquisition module provided in an embodiment of the present invention；
Fig. 9 is the structural representation of first acquisition unit provided in an embodiment of the present invention；
Figure 10 is that the structure of first row gap unit provided in an embodiment of the present invention and/or the second row gap unit is shown
It is intended to；
Figure 11 is that the first determination emptying subelement provided in an embodiment of the present invention and/or described second determine emptying subelement
Structural representation.
Embodiment
To make goal of the invention, the technique effect of the present invention clearer, technical scheme is more complete, right below in conjunction with the accompanying drawings
The embodiment of the present invention is described in detail.
In order to which technical scheme is expressly understood, first with reference to electric precipitation and its defeated ash of the Fig. 1 to electric cleaner
System is introduced.
From figure 1 it appears that ash-laden gas enters electric cleaner via electric cleaner entrance, multiple electric fields are sequentially passed through
Reach that dedusting electric cleaner is exported after (generally 3~5 electric fields) dedusting, removing dust blower fan, chimney (are arranged at dedusting electric precipitation
The downstream of device outlet) arrange outside.Electric cleaner institute chalk dust removing (hereinafter referred to as dedusting ash) falls into respective electric field ash-storing bin and stored in short-term,
Electric field ash-storing bin successively opens corresponding unloading valve by certain rule, dedusting ash is transported to total ash-storing bin through electric precipitation ash-transmission system.
Final dedusting ash is sent out through dust outward transport system.Wherein, the electric precipitation ash-transmission system includes：Electric field ash-storing bin unloading valve, electricity
Field scraper ash-transmission machine, total scraper ash-transmission machine, bucket elevator.
On the premise of dedusting ash loss during not considering the defeated ash of ash-transmission system, it is believed that be transported in total ash-storing bin
Dedusting ash be the dedusting ash obtained in electric cleaner dust removal process.Therefore, the weight of the dedusting ash in total ash-storing bin is
The reality of electric cleaner removes ash quantity.In other words, the weight of the dedusting ash in total ash-storing bin is that electric cleaner removes the true of ash quantity
Real value or exact value.However, because most of the time of the unloading valve in dust removal process of electric field ash-storing bin is closed,
To prevent leak-stopping wind.Therefore, electric precipitation in the past period can only be reflected by weighing the weight of the dedusting ash in total ash-storing bin
Device removes dust quantity, and again because the unlatching of electric field ash-storing bin unloading valve has certain cycle, therefore, passes through and weigh total storage ash
What the weight of the dedusting ash in storehouse was obtained removes dust quantity except dust quantity can only be got in some special time periods of electric cleaner, without
Random time section can be got removes dust quantity.
Dust quantity is removed in section at any time in order to get electric cleaner, in electric cleaner dedusting and its defeated ash system
The real-time measurement system except dust quantity is mounted with system.It is used as an example except dust quantity real-time measurement system, the real-time measurement system
System can include being arranged on the detecting instrument of the Dust Capacity at flue gateway and the measurement for obtaining detecting instrument
Data simultaneously obtain the data processing unit except dust quantity according to measurement data.As an example, as shown in figure 1, installed in flue
The detecting instrument of Dust Capacity at gateway includes being arranged on first flowmeter A1, the first dust concentration of flue porch
Count B1 and the first thermometer C1 and the second dust concentration meter B2 and second temperature meter installed in flue exit
C2。
Wherein, first flowmeter A1 is used for the flow q for measuring the ash-laden gas for entering electric cleanerin, the first dust concentration
Count the dust concentration ρ that B1 is used to measure the ash-laden gas for entering electric cleanerin, the first thermometer C1 enters electric precipitation for measurement
The ash-laden gas temperature T of devicein；Second dust concentration meter B2 is used for the dedusting flue gas for measuring electric cleaner electric cleaner exit
Dust concentration ρout, the temperature T of dedusting flue gases of the second temperature meter C2 for measuring electric cleaner electric cleaner exitout。
It should be noted that not entering the flow q of the ash-laden gas of electric cleaner in dust removal process in the same timeinWith dust constaining
The dust concentration ρ of gasinProduct be not in the same time into electric cleaner ash-laden gas instantaneous Dust Capacity.By to one section
The instantaneous Dust Capacity of the ash-laden gas for not entering electric cleaner in the same time in period, which is integrated, can obtain this time
The total dust of ash-laden gas in section.
In embodiments of the present invention, flowmeter is fitted without in electric cleaner exit, so can not be detected by instrument
To the flow q of dedusting flue gasout.However, it is possible to pass through the flow q to ash-laden gasinCarry out the side of temperature adjustmemt and amendment of leaking out
Method obtains the flow q of dedusting flue gasout.It is formulated as follows：
Wherein, TinFor the temperature of the ash-laden gas of electric cleaner porch, ToutFor the dedusting flue gas in electric cleaner exit
Temperature, α is the air leak rate of air curtain of electric cleaner.
In measuring system provided in an embodiment of the present invention, the temperature T of the ash-laden gas of electric cleaner porchinIt can lead to
Cross the first thermometer C1 measurements to obtain, the temperature T of the dedusting flue gas in electric cleaner exitoutSecond temperature meter C2 can be passed through
Measurement is obtained.The air leak rate of air curtain α of electric cleaner can be obtained by searching the performance parameter of the electric cleaner.Therefore, by above-mentioned
Method can obtain the flow of dedusting flue gas according to the flow of ash-laden gas.
The above method obtain not in the same time when dedusting flue gas flow and the dust concentration of dedusting flue gas product i.e.
For not in the same time when dedusting flue gas instantaneous Dust Capacity.By to each dedusting flue gas not in the same time in certain time
Instantaneous Dust Capacity be integrated can obtain this period section in dedusting flue gas total dust.
By the total dust of the total dust of the ash-laden gas in certain time and the dedusting flue gas in this section of period
It is poor to make, and obtained difference is the electric cleaner in section this period except dust quantity.
It should be noted that going to outlet from entrance due to flue gas needs certain duration, so, in order to ensure what is obtained
The ash-laden gas that the dedusting ash correspondence in exit enters from porch.Will at the time of the Dust Capacity of the dedusting ash measured in exit
Than measure porch ash-laden gas Dust Capacity at the time of prolong Δ t ".
The Δ t " is equal to for the time needed for flue gas moves to electric cleaner outlet from electric cleaner entrance, Δ t " value
Installed in electric cleaner porch the first dust concentration meter to electric cleaner outlet the distance between divided by flue gas flow rate.Together
When, Δ t " is also the minimum resolution except dust quantity real-time measurement system, less than ash-laden gas of the Δ t " in the time, is not had also from entrance
Outlet is flowed to, thus, it is impossible to determine to remove dust quantity in real time in section this period.
Be formulated in certain time except dust quantity it is as follows：
Wherein, GDust-ladenThe total dust contained for ash-laden gas in the first moment t1 to the second moment t2, unit mg/m3；
GDedustingFor the total dust contained from the dedusting flue gas in the 3rd moment t3 to the 4th this period at moment t4 sections, list
Position mg/m3；The 3rd moment t3 postpones Δ t " than first moment t1, and the 4th moment t4 is than second moment t2
Postpone Δ t "；
ρin(t) it is the ash-laden gas dust concentration of electric cleaner porch, unit mg/m3；
qin(t) it is the ash-laden gas flow of electric cleaner porch, unit is m3/s。
ρout(t) for electric cleaner exit dedusting flue gas dust concentration, unit mg/m3。
T represents the time, xx points xx seconds when t1 and t2 are respectively measuring system initial time and end time, such as xx, its
In, the first moment t1 and the second moment t2 can be any instant in dust removal process.
It should be noted that in above-mentioned formula, the first moment t1 and the second moment t2 can be appointing in dust removal process
One moment, so, the real-time dedusting in electric cleaner dust removal process in any time period can be obtained by above-mentioned integral formula
Amount.
It should be noted that the dust quantity real-time measurement system that removes described above is only one except dust quantity real-time measurement system
Example, should not be construed as the present invention except dust quantity real-time measurement system is only limitted to above-mentioned example.In fact, of the present invention remove
Dust quantity real-time measurement system can remove dust quantity real-time measurement system for any of the art.
But as described in the background section, the reality for removing dust quantity and electric cleaner in real time obtained based on real-time measurement system
Border will have certain error between removing dust quantity.In order to eliminate the error, it is necessary to dedusting to being obtained by real-time measurement system
Amount is calibrated, so that the dust quantity that removes after calibration removes dust quantity for the reality of electric cleaner.
Inventor's research is found, causes to remove dust quantity and actual except between dust quantity by what the real-time measurement system except dust quantity was obtained
The main cause that there is error be the detecting instrument in real-time measurement system measurement accuracy and the degree of accuracy and installation site and
The objective condition such as flue air flow method.But these objective condition in certain period of time as being to stablize constant in one week
, therefore, in certain period of time, except the error between the measured value and actual value of dust quantity be it is certain, measured value with it is true
There is a relatively-stationary proportionate relationship between value.Can be in the period using the proportionate relationship in the certain period of time
Any measured value carry out calibration so as to obtaining actual value.The relation being formulated between actual value and measured value is as follows：
GIt is real=κ GSurvey(3)；
Wherein, κ is the calibration factor of dedusting measurement, and it can be represented in certain period of time except dust quantity actual value is with removing
Relation between dust quantity measured value.
From above-mentioned formula (3) it is known that only it is to be understood that in certain period of time except the actual value and measured value of dust quantity,
The relation removed between dust quantity actual value and measured value in the certain period of time can be obtained.Therefore, obtain in certain period of time
Except the key of relation between dust quantity actual value and measured value be to get in certain period of time except the actual value of dust quantity.
In order to which the reality for obtaining electric cleaner in certain time removes dust quantity, on the basis of the measuring system shown in Fig. 1,
The embodiment of the present invention is provided with a closed belt scale PL1 in the downstream of total scraper ash-transmission machine, as shown in Figure 2.The closed belt
Scale weighs the instantaneous delivery for the dedusting ash for not flowing through the closed belt scale in the same time.By in certain period of time not in the same time
The instantaneous delivery for flowing through the dedusting ash of the closed belt scale is integrated, you can obtain in certain period of time flow through it is described close
The gross weight of the dedusting ash of strip of paper used for sealing belt scale.
It should be noted that because the sensor of closed belt scale is not contacted directly with dedusting ash, its working environment is relative
Cleaning, thus the data obtained using closed belt scale are true and reliable, numerical error is small, system failure rate is low.Thus, using close
The dedusting ash weight that strip of paper used for sealing belt scale is measured can be considered that the reality of electric cleaner removes dust quantity.
Dust quantity calibration system is removed based on the electric cleaner shown in Fig. 2, the invention provides a kind of electric cleaner except dust quantity
Calibration method.Fig. 3 is electric cleaner provided in an embodiment of the present invention except the schematic flow sheet of the calibration method of dust quantity.Such as Fig. 3 institutes
Show, the calibration method comprises the following steps：
Except the relation between dust quantity actual value and dedusting measurement in S31, acquisition first time period：
In embodiments of the present invention, the dedusting measurement in one section of duration on electric cleaner by removing dust quantity
Real-time measurement system is obtained, being obtained except dust quantity actual value is detected by the closed belt scale in one section of duration.
Calculate in any one same time period and remove dust quantity actual value and the ratio of dedusting measurement, the ratio can
To represent in first time period except the relation between dust quantity actual value and dedusting measurement.The ratio is the first time period
The calibration factor of interior dedusting measurement.
In addition, inventor research find, it is assumed that electric cleaner except dust quantity real-time measurement system measure it is real-time except dust quantity is
Except dust quantity actual value if, dedusting ash from electric field ash-storing bin be transported to closed belt scale needs average transport time be Δ t,
The dust weight of electric precipitation pole plate adhesion is not considered, then from the first moment T1 to the second moment T2 electric cleaner except dust quantity is real-time
What measuring system was obtained removes dust quantity data GSurvey (T1, T2)With the closed belt scale PL measurements in the corresponding period obtain remove dust quantity
GScale (T1+ Δs t, T2+ Δ t)Between there is following relation：
GSurvey (T1, T2)+HT1=GScale (T1+ Δs t, T2+ Δ t)+HT2(4)；
Wherein, HT1To deposit ash quantity in the first moment T1 Electric Field in ESP ash-storing bin；
HT2To deposit ash quantity in the second moment T2 Electric Field in ESP ash-storing bin.
Wherein, the left side or the right of equation for electric cleaner the institutes out of the first moment T1 to the second this period at moment T2 section
There is the gross weight of dedusting ash.
In order to determine the measured value except dust quantity and the actual value except dust quantity of real-time measurement system measurement in certain time
Between relation, it is necessary to try to realize HT1And HT2It is equal.
The present invention is namely based on the studies above and finds to measure with dedusting come the dust quantity actual value of removing obtained in certain time
Relation between value.In embodiments of the present invention, in order to realize HT1And HT2It is equal, with second before the first moment T1
Before moment T2, the dedusting ash in emptying electric field ash-storing bin so that in the first moment T1 and the second moment T2, electric field storage ash
Storehouse is hole capital after selling all securities.Referring specifically to following examples.
Fig. 4, which is shown, to be obtained in first time period except one of relation between dust quantity actual value and dedusting measurement specific
Mode.As shown in figure 4, it specifically includes following steps：
S311, the dedusting for obtaining closed belt scale detection out of the first moment T1 to the second this period at moment T2 section
Grey weight GIt is real：
Setting：The first time period is from the first moment T1 to the second this period at moment T2 sections.Specifically, skin is sealed
Belt scale can detect in dust removal process not in the same time when flow through closed belt scale dedusting ash flow, in first time period
The flow of dedusting ash not in the same time be integrated, so as to obtain the dedusting ash that closed belt scale is flowed through in certain time length
Gross weight.
It should be noted that the dust removed by dedusting electric field falls into electric field ash-storing bin, then ash is stored up via electric field
Storehouse unloading valve, electric field scraper ash-transmission machine and the output of total scraper ash-transmission machine flow through closed belt scale.Do not considering ash-transmission system damage
In the case of mistake, the dust that dedusting electric field is removed all flows through closed belt scale, thus detected by closed belt scale
The weight of dedusting ash removes dust quantity for the reality of electric cleaner.
As the first moment T1 in first time period to be obtained to the second this period at moment T2 of section interior sealing belt conveyer scale inspection
The dedusting ash weight G of surveyIt is realWhen, it is necessary to in the first moment T1 to the second this period at moment T2 sections not in the same time when flow through sealing
The instantaneous delivery of belt conveyer scale is integrated, so as to obtain the closed belt scale from the first moment T1 to the second moment T2 this
The dedusting ash weight G of detection in the section periodIt is real。
It is formulated as follows：
Wherein, PL (t) for not in the same time when flow through closed belt scale dedusting ash instantaneous delivery, t represents the time.
As the present invention a specific embodiment, as shown in figure 5, above-mentioned acquisition closed belt scale from the first moment T1 to
The dedusting ash weight G that second this period at moment T2 was detected in sectionIt is realSpecifically include following steps：
S3111, the dedusting ash for emptying all electric field ash-storing bins for the first time, after all electric field ash-storing bin emptyings at the time of correspondence
For the first moment T1：
It should be noted that because electric cleaner needs continuous work in for a long time, in order that dust quantity calibration process must be removed
Normal production is not influenceed, it is provided in an embodiment of the present invention except dust quantity calibration method is that electric cleaner enters in normal production process
Capable.
However, in normal productive process, in order to reduce leaking out for dust pelletizing system, electric field ash-storing bin unloading valve is not constantly
Open, the unlatching of the unloading valve of electric field ash-storing bin has periodically.That is electric field ash-storing bin unloading valve just meeting at regular intervals
Open once, the dedusting ash so removed by electric field is first kept in and is accumulated in electric field ash-storing bin.
If dedusting ash in advance in discharge electric field ash-storing bin before calibration, at detected by closed belt scale one section
Between in section the weight of dedusting ash will be more than the weight of the dedusting ash in this section of period.Thus, in order that obtaining closed belt scale
The weight of the dedusting ash detected in certain time is equal to the weight of dedusting ash in this section of period, it is necessary to empty first all
Dedusting ash in electric field ash-storing bin.
It should be noted that in actual applications, Fig. 1 or the electric field scraper ash-transmission machine G1 shown in Fig. 2 ability are limited in
A unloading valve is allowed to unload ash at full capacity.If two unloading valves unload ash simultaneously, it is possible to electric field scraper ash-transmission machine G1 mistakes occur
The failure of load.So, when emptying the dedusting ash of all electric field ash-storing bins, it is necessary to singly empty, and can not be simultaneously
Many unloading valves are opened to carry out unloading ash simultaneously.Specific implementation is as follows：The first unloading valve is first opened to the first unloading valve correspondence
The first electric field ash-storing bin carry out unload ash, after the first electric field ash-storing bin emptying after, open the second unloading valve to the second unloading valve
Corresponding second electric field ash-storing bin unloads ash, after after the emptying of the second electric field ash-storing bin, opens the 3rd unloading valve to the 3rd unloading valve pair
The 3rd electric field ash-storing bin answered unloads ash, the like, until the dedusting ash in all electric field ash-storing bins is emptied.
In addition, after the dedusting ash in electric field ash-storing bin is emptied, the corresponding unloading valve of electric field ash-storing bin can not be closed.
Now, the dedusting ash obtained by electric cleaner dedusting, with falling with walking, is stopped in the electric field ash-storing bin not in electric field ash-storing bin,
Again because the electric field ash-storing bin is hole capital after selling all securities, the actual flow of the corresponding unloading valve of electric field ash-storing bin is very low, therefore, will not be to electricity
Field scraper ash-transmission machine causes the risk of overload.So, after the dedusting ash emptying in some electric field ash-storing bin, it can not close
The corresponding unloading valve of electric field ash-storing bin, makes the dedusting ash that the progress dedusting of dedusting electric field is obtained be stopped not in electric field ash-storing bin.
All emptied in order to ensure the dedusting ash of some electric field ash-storing bin, the embodiment of the present invention judges in additionally providing one
The method whether electric field ash-storing bin empties.Its method flow schematic diagram is as shown in fig. 6, it specifically includes following steps：
S61, during electric field ash-storing bin unloads ash, obtain closed belt scale detection dedusting ash flow through it is described close
The current instantaneous delivery of strip of paper used for sealing belt scale：
It should be noted that during electric field ash-storing bin unloads ash, closed belt scale detects that each moment flows through in real time
Dedusting ash instantaneous delivery.The dedusting ash that Electric dust collector obtains the detection of closed belt scale flows through the closed belt
The current instantaneous delivery of scale.
S62, judge current instantaneous delivery whether be less than preset value, if it is, perform step S63, if not, perform step
S64：
The preset value is the metered flow of the corresponding unloading valve of electric field ash-storing bin and the ratio of preset ratio coefficient.
When some electric field ash-storing bin is hole capital after selling all securities, electric field ash-storing bin HC1Dust settling flow CL1Stored up with the electric field
Ash silo HC1Corresponding unloading valve F1Specified unload grey flow L1There is following mathematical relationship：
L1>k1*CL1；
Wherein, L1：Unloading valve F1Specified unload grey flow, units/kg/s；
CL1：HC1The dust settling flow of electric field ash-storing bin, units/kg/s；
K1：Preset ratio coefficient, Typical ranges 3~10.
It can be seen from above-mentioned relation, CL1<L1/k1。
Therefore, it can be sentenced by judging whether the instantaneous delivery for the dedusting ash that the closed belt scale is detected is less than preset value
Whether the dedusting ash in power-off field ash-storing bin empties.
S63, judge in the second preset time period not in the same time when closed belt scale detection dedusting ash wink
Whether Shi Liuliang is respectively less than preset value, if it is, determining the dedusting ash emptying in the electric field ash-storing bin.If it is not, then determining to be somebody's turn to do
Dedusting ash in electric field ash-storing bin is not emptied：
It should be noted that under normal circumstances, can largely judge that electric field is stored up by step S62 judgement
Whether the dedusting ash in ash silo empties, still, due to being disturbed by electric signal, it is possible to situations below occurs：Although
Dedusting ash in electric field ash-storing bin is not emptied, but at certain in a flash it is possible that the dedusting of closed belt scale detection
The instantaneous delivery of ash is less than preset value.In this case, if judging the dedusting ash in electric field ash-storing bin according only to step S62
Whether empty, it is possible to erroneous judgement occurs.In order to avoid the possibility of this erroneous judgement, when the closed belt scale detect it is a certain
When the dedusting ash instantaneous delivery at moment is less than preset value, can also determine whether in the second preset time period not in the same time
Whether the instantaneous delivery of the dedusting ash of the closed belt scale detection is respectively less than preset value.If it does, can then determine this
Dedusting ash emptying in electric field ash-storing bin.If not, then removing for the closed belt scale detection that step S62 is obtained is illustrated
The judged result that dirt ash instantaneous delivery is less than preset value is due to that electric signal interference is caused.
Wherein, when the initial time of second preset time period is corresponding less than the current instantaneous delivery of preset value
Carve.Second preset time period is generally very short duration, for example, 30S.And electric field ash-storing bin to unload grey duration usual
Reach dozens of minutes even it is longer, so the duration of second preset time period compared to electric field ash-storing bin unload grey duration can
To think to ignore.Thus it is considered that increase step S63, which will not extend, unloads grey duration.
S64, the instantaneous delivery for obtaining subsequent time, and the instantaneous delivery of the subsequent time is updated to current instantaneous stream
Amount, returns and performs step S62：
Because closed belt scale is during electric field ash-storing bin unloads ash, it can continue to detect that each moment flows down sealed belt
The instantaneous delivery of the dedusting ash of scale, therefore, if current instantaneous delivery is not less than preset value, illustrates current time electric field storage ash
Dedusting ash in storehouse is not emptied, and Electric dust collector obtains the instantaneous delivery of subsequent time, and by the subsequent time
Instantaneous delivery is updated to current instantaneous delivery, returns and performs step S62.
S3112, control electric cleaner proceed by normal dedusting from first moment T1 and run the first preset time period：
It should be noted that before the dedusting ash in electric field ash-storing bin is emptied, electric cleaner is in normal dedusting pattern,
After after the dedusting ash emptying in electric field ash-storing bin, control electric cleaner proceeds by normal dedusting from the first moment T1, and setting should
When a length of first preset time period of normal dedusting operation.According to production or the demand of user, first preset time period can be with
For several hours, or one day, naturally it is also possible to be other durations.
In addition, the normal operation refers to the operational mode of the electric cleaner in normal production process.It is first pre- at this
If in the period, electric field ash-storing bin unloading valve normally unloads grey cycle execution according to electric cleaner and opens and closes operation.
S3113, the dedusting ash for emptying all electric field ash-storing bins again, when all electric field ash-storing bins are emptied again
It is the second moment T2 at the time of corresponding to afterwards；It is described close within first moment T1 to this period at the second moment T2 section
Weight of the strip of paper used for sealing belt scale detection from the dedusting ash of total scraper ash-transmission machine outflow：
After after electric cleaner normally the first preset time period of operation, in order that obtaining electric cleaner in the first preset time period
The dedusting ash that dedusting is obtained all flows through closed belt scale, at this time, it may be necessary to empty the dedusting ash in all electric field ash-storing bins again.
It is the second moment T2 at the time of correspondence after all electric field ash-storing bins are emptied again.
It should be noted that the method for emptying the dedusting ash of all electric field ash-storing bins in this step can be with step
S3111 is identical, for the sake of brevity, is not described in detail herein.
S3114, the dedusting ash weight detected according to the closed belt scale, obtain the closed belt scale from the first moment
The dedusting ash weight G that T1 is weighed to the second this period at moment T2 in sectionIt is real：
Closed belt scale persistently detects the dedusting ash weight flowed through in the first moment T1 to the second this period at moment T2 sections
Amount, is integrated to the dedusting ash weight that this is flowed through, so as to obtain the closed belt scale from the first moment T1 to the second moment
The dedusting ash weight G weighed in T2 sections this periodIt is real。
Four steps have obtained electric cleaner in the first moment T1 to the second this period at moment T2 sections more than
Except the actual value of dust quantity.
S312, the measurement out of the 3rd moment T3 to the 4th this period at moment T4 section of the acquisition real-time measurement system are obtained
Dedusting ash weight GSurvey；Wherein, the 3rd moment T3 shifts to an earlier date Δ t than first moment T1, and the 4th moment T4 compares institute
It is that dedusting ash is needed from each electric field ash-storing bin by ash-transmission system arrival closed belt scale to state the second moment T2 to shift to an earlier date Δ t, the Δ t
The average time wanted：
It should be noted that dedusting ash passes through electric field ash-storing bin, electric field scraper ash-transmission machine, total scraper ash-transmission from dedusting electric field
Machine, which reaches closed belt scale, needs certain transport time, sets the transport time as Δ t.And except dust quantity real-time measurement system is surveyed
The dedusting ash of amount needs not move through transport system, thus, the detection of closed belt scale obtains the actual value correspondence at the time of ratio except dust quantity
Except one transport time Δ t of delay at the time of the measured value for removing dust quantity in real time of dust quantity real-time measurement system measurement is corresponding.Therefore,
In order that closed belt scale and real-time measurement system obtain except dust quantity is the dust quantity that removes in the same period, measurement system in real time
Unified test amount carries previous transport except the dust quantity corresponding period than the period for the dedusting ash weight that closed belt scale is detected
Time Δ t.Only in this way, measured value except dust quantity and removing that closed belt scale is detected that real-time measurement system is measured could be caused
It is corresponding in time that the actual value of dust quantity, which is,.
The dedusting ash weight G that S313, the calculating closed belt scale are detectedIt is realObtained with the real-time measurement system measurement
Dedusting ash weight GSurveyRatio, the ratio be in the first time period except dust quantity actual value and dedusting measurement it
Between relation：
It should be noted that due in second time period, except the dedusting measurement of dust quantity real-time measurement system measurement
With except the relation between dust quantity actual value be substantially stationary.So the dust quantity actual value of removing in a bit of duration is measured with dedusting
Relation between value can represent that the dust quantity actual value of removing in the longer period comprising a bit of duration is measured with dedusting
Relation between value.
In addition, in embodiments of the present invention, removing between dust quantity actual value and dedusting measurement in first time period
Relation can be for, except dust quantity actual value and the proportionate relationship of dedusting measurement, the proportionate relationship can be used in first time period
Except dust quantity actual value and the ratio of dedusting measurement are represented.It should be noted that the proportionate relationship is dedusting measurement
Calibration factor.
S32, using the relation except between dust quantity actual value and dedusting measurement, to any in second time period
Dedusting measurement in duration is calibrated.
In embodiments of the present invention, the initial time of second time period is the end time of first time period.That is,
First time period is the previous time section of second time period.Set electric cleaner first time period and second time period it is total when
Between systematic error in section it is basicly stable, so, it is believed that in first time period except dust quantity actual value and dedusting measurement
The relationship consistency removed between dust quantity actual value and dedusting measurement in relation and second time period between value.Therefore, may be used
To go in calibration second time period to appoint using the relation removed between dust quantity actual value and dedusting measurement in first time period
In one duration except the measured value of dust quantity so that accurately obtain electric cleaner it is actual remove dust quantity.Thus, carried using the present invention
What the calibration method that the electric cleaner of confession removes dust quantity was obtained, which removes dust quantity, to be conducive to raising with the control of Instructing manufacture technological parameter
The efficiency of dust collection of electric cleaner.
Specifically, using in the above-mentioned first time period got except dust quantity actual value and the ratio of dedusting measurement multiply
With the dedusting measurement in any duration in second time period, obtained product is the dedusting after the calibration in the duration
Amount.Dust quantity is actually removed in the duration except dust quantity can be regarded as electric cleaner after the calibration.
In sintering technology field, the accuracy of detection of each detecting instrument of real-time measurement system and the degree of accuracy can be at one weeks
Keep basically identical in interior or longer time section, so, for convenience, dust quantity actual value is removed in length when generally using shorter
Relation between dedusting measurement is represented in longer period except the pass between dust quantity actual value and dedusting measurement
System.Length can be 1 day when this is shorter, or several hours.The length of specific duration can be according to production technology situation
Think to determine.Therefore, in embodiments of the present invention, the duration of first time period can than second time period when length very
It is many.For example, in sintering technology field, second time period can be set to one week, first time period is set to 1 day.
Certainly, above-mentioned duration is exemplary description, should not be understood as the restriction to the embodiment of the present invention.
Furthermore, it is necessary to explanation, because electric cleaner and except dust quantity real-time measurement system error can slowly increase with the time
Plus, cause systematic error to increase, accordingly, it would be desirable to periodically be calibrated to it.In embodiments of the present invention, setting electric cleaner exists
Systematic error in the total duration of first time period and second time period is stable, so, any duration in this total duration
The interior relation all same removed between dust quantity actual value and measured value.So, by first time period and second time period it is total when
Length is used as a calibration cycle.Every after the duration of first time period and second time period, just to electric cleaner except dust quantity enters
Row calibration once, updates the relation between one-time dedusting amount actual value and measured value, then another using the relation pair after updating
Being calibrated except dust quantity in the period.
It is above embodiment of the electric cleaner provided in an embodiment of the present invention except the calibration method of dust quantity.In the school
In quasi- method, only need to empty the dedusting ash in electric field ash-storing bin in calibration beginning and end process, and in the big of calibration process
In part-time section, electric dust removal system is in normal dedusting pattern.Therefore, in calibration method provided in an embodiment of the present invention
In calibration process, real-time measurement system is obtained in the measured value and normal productive process except dust quantity that real-time measurement system measurement is obtained
The error removed between dust quantity arrived is smaller.Therefore, removing after the calibration obtained using calibration method provided in an embodiment of the present invention
Dust quantity closely electric cleaner reality remove dust quantity.
Moreover, in the calibration process of calibration method provided in an embodiment of the present invention, electric cleaner is equal within the most of the time
In normal operation mode, so, the influence for the measurement result that air leak rate of air curtain is obtained to real-time measurement system can control allowing
Error in, so, the calibration method is applicable not only to the electric dust removal system that unloading valve is configured to Double-deck cinder discharge valve, also be applicable
The electric dust removal system of star-shaped dust-discharging valve is configured in unloading valve.
, only need to be on the basis of original measuring system in the downstream of total scraper ash-transmission machine using the calibration method of the present invention
A closed belt scale is set up, therefore, calibration system configuration is simple, and newly added equipment is few.But, because closed belt scale needs
Certain height and space, for newly-built electric dust removal system or the mounting condition with closed belt scale existing electricity
Duster system can use the technical scheme.
In addition, the calibration method provided using the present invention, its calibration process does not influence normal production.Moreover, utilizing the school
Quasi- method can realize the periodic calibration to removing dust quantity in real time, and calibration factor can adapt to instrument and production status because obtained from
Change.
The calibration method of dust quantity is removed based on the electric cleaner that above-described embodiment is provided, the embodiment of the present invention additionally provides one kind
Electric cleaner removes the calibrating installation of dust quantity.
Fig. 7 is the structural representation for the calibrating installation that electric cleaner provided in an embodiment of the present invention removes dust quantity, such as Fig. 7 institutes
Show, the calibrating installation is included with lower module：
Acquisition module 71, for obtaining except the relation between dust quantity actual value and dedusting measurement in first time period,
The dedusting measurement by electric cleaner except dust quantity real-time measurement system is obtained, it is described remove dust quantity actual value
Obtained by closed belt scale detection；
Calibration module 72, for removing the relation between dust quantity actual value and dedusting measurement described in, during to second
Between dedusting measurement in any duration in section calibrated, when the initial time of the second time period is described first
Between section end time.
The dedusting measurement in any duration in second time period can be carried out using the calibrating installation shown in Fig. 7
Calibration.In addition, the calibration factor in different time sections can be obtained using the calibrating installation, thus, the calibrating installation can be fitted
Answer the change of instrumentation accuracy of detection.
As the specific embodiment of the present invention, the first time period is set as from the first moment T1 to the second moment
T2 sections this period.As shown in figure 8, the acquisition module 71 can be specifically included：
First acquisition unit 711, during for obtaining the closed belt scale this section from the first moment T1 to the second moment T2
The dedusting ash weight G of detection in longIt is real；
Second acquisition unit 712, for obtaining the real-time measurement system from the 3rd moment T3 to the 4th moment T4 this section
The dedusting ash weight G that measurement is obtained in periodSurvey；Wherein, the 3rd moment T3 shifts to an earlier date Δ t than first moment T1, institute
State the 4th moment T4 and shift to an earlier date Δ t than second moment T2, the Δ t is that dedusting ash passes through ash-transmission system from each electric field ash-storing bin
Reach the average time that closed belt scale needs；
Computing unit 713, for calculating the dedusting ash weight G that the closed belt scale is detectedIt is realWith the real-time measurement
The dedusting ash weight G that systematic survey is obtainedSurveyRatio, the ratio is except dust quantity actual value is with removing in the first time period
Relation between dust quantity measured value.
As the more specific embodiment of the present invention, as shown in figure 9, the first acquisition subelement 711 can be specifically included：
First row gap unit 7111, the dedusting ash for emptying all electric field ash-storing bins for the first time, all electric field storage ashes
It is the first moment T1 at the time of corresponding after the emptying of storehouse；
Control unit 7112, first is run for controlling electric cleaner to proceed by normal dedusting from first moment T1
Preset time period；
Second row gap unit 7113, the dedusting ash for emptying all electric field ash-storing bins again, when described all
Electric field ash-storing bin is the second moment T2 at the time of corresponding after emptying again；First moment T1 to second moment T2 this
In Duan Shichang, the closed belt scale detection does not flow through the instantaneous delivery of the dedusting ash of the closed belt scale in the same time；
Subelement 7114 is obtained, the closed belt scale is not flowed through in the same time for what is detected according to the closed belt scale
Dedusting ash instantaneous delivery, obtain the closed belt scale weighings out of the first moment T1 to the second this period at moment T2 section
Dedusting ash weight GIt is real。
It is used as the specific embodiment of the present invention, as shown in Figure 10, the first row gap unit 7111 and/or described
Second row gap unit 7113 is specifically included：
Grey subelement 101 is unloaded in first control, for controlling the first electric field ash-storing bin to unload ash；
First determines emptying subelement 102, for determining the first electric field ash-storing bin emptying；
Grey subelement 103 is unloaded in second control, determines that emptying subelement determines the first electric field storage ash for described first
After the emptying of storehouse, the second electric field ash-storing bin is controlled to unload ash；
Second determines emptying subelement 104, for determining the second electric field ash-storing bin emptying.
Further, as shown in figure 11, described first emptying subelement 102 and/or the second determination emptying are determined
Unit 104 is specifically included：
Instantaneous delivery subelement 1101 is obtained, it is suitable according to time time order and function during unloading ash in electric field ash-storing bin
Sequence flows through the instantaneous delivery of the dedusting ash of the closed belt scale when obtaining each moment of the closed belt scale detection successively,
Until the instantaneous delivery for the dedusting ash that the closed belt scale is detected is less than preset value；The preset value is the electric field ash-storing bin pair
The specified ratio for unloading grey flow and preset ratio coefficient for the unloading valve answered；
Moment determination subelement 1102 is emptied, for determining the electric field ash-storing bin in the instantaneous delivery correspondence less than preset value
At the time of empty.
Further, described first determine that emptying subelement and/or the second determination emptying subelement can also enter one
Step includes：
Instantaneous delivery is determined continuously less than default value cell 1103, for being got in the acquisition instantaneous delivery subelement
After instantaneous delivery less than the dedusting ash of preset value, the emptying moment determination subelement determines the electric field ash-storing bin less than pre-
If at the time of the instantaneous delivery correspondence of value before emptying, determining the instantaneous delivery of dedusting ash of closed belt scale detection the
Continuously less than preset value in two preset time periods, the initial time of second preset time period is the wink for being less than preset value
At the time of Shi Liuliang correspondences.
Described above is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.
Although the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention, any to be familiar with ability
The technical staff in domain, without departing from the scope of the technical proposal of the invention, all using in the methods and techniques of the disclosure above
Appearance makes many possible variations and modification to technical solution of the present invention, or is revised as the equivalent embodiment of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to made for any of the above embodiments any simple
Modification, equivalent variations and modification, in the range of still falling within technical solution of the present invention protection.
Claims (10)
1. a kind of electric cleaner removes the calibration method of dust quantity, it is characterised in that installed in the dust pelletizing system of the electric cleaner
Have for measuring the electric cleaner except dust quantity is except dust quantity real-time measurement system, be provided with the downstream of total scraper ash-transmission machine close
Strip of paper used for sealing belt scale, the closed belt scale is used to detect in electric cleaner dust removal process does not flow through the closed belt scale in the same time
Dedusting ash instantaneous delivery；
The calibration method includes：
Obtain except the relation between dust quantity actual value and dedusting measurement in first time period, the dedusting measurement passes through
Obtaining except dust quantity real-time measurement system on electric cleaner, it is described except dust quantity actual value is examined by the closed belt scale
Measure；
Using the relation except between dust quantity actual value and dedusting measurement, in any duration in second time period
Dedusting measurement is calibrated, and the initial time of the second time period is the end time of the first time period；
The first time period is from the first moment T1 to the second this period at moment T2 sections；Removed in the acquisition first time period
Relation between dust quantity actual value and dedusting measurement is specifically included：
Obtain the closed belt scale from the first moment T1 to second this section of duration of moment T2 in the dedusting ash weight G that detectsIt is real；
Obtain the real-time measurement system dedusting ash that measurement is obtained out of the 3rd moment T3 to the 4th this period at moment T4 section
Weight GSurvey；Wherein, the 3rd moment T3 shifts to an earlier date Δ t than first moment T1, when the 4th moment T4 is than described second
It is that dedusting ash reaches being averaged for closed belt scale needs from each electric field ash-storing bin by ash-transmission system to carve T2 to shift to an earlier date Δ t, the Δ t
Time；
Calculate the dedusting ash weight G that the closed belt scale is detectedIt is realThe dedusting ash obtained with the real-time measurement system measurement
Weight GSurveyRatio, the ratio is except the pass between dust quantity actual value and dedusting measurement in the first time period
System.
2. according to the method described in claim 1, it is characterised in that it is described obtain the closed belt scale from the first moment T1 to
The dedusting ash weight G that second this period at moment T2 was detected in sectionIt is realSpecifically include：
The dedusting ash of all electric field ash-storing bins is emptied for the first time, is the first moment at the time of corresponding after all electric field ash-storing bin emptyings
T1；
Control electric cleaner proceeds by normal dedusting from first moment T1 and runs the first preset time period；
The dedusting ash of all electric field ash-storing bins is emptied again, when corresponding after all electric field ash-storing bins are emptied again
Carve as the second moment T2；Within first moment T1 to described this section of duration of second moment T2, the closed belt scale detection
The instantaneous delivery of the dedusting ash of the closed belt scale is not flowed through in the same time；
The instantaneous delivery of the dedusting ash for not flowing through the closed belt scale in the same time detected according to the closed belt scale, is obtained
The dedusting ash weight G that the closed belt scale is weighed out of the first moment T1 to the second this period at moment T2 sectionIt is real。
3. method according to claim 2, it is characterised in that the electric cleaner at least include the first electric field ash-storing bin and
Second electric field ash-storing bin, first time empties the dedusting ash of all electric field ash-storing bins or described empties all electric fields storage ashes again
The dedusting ash in storehouse, is specifically included：
Control the first electric field ash-storing bin to unload ash, after the first electric field ash-storing bin emptying to be determined, control second electricity
Field ash-storing bin unloads ash until it is determined that the second electric field ash-storing bin is emptied.
4. method according to claim 3, it is characterised in that determine the first electric field ash-storing bin emptying and/or determine
The second electric field ash-storing bin emptying is specifically included：
During electric field ash-storing bin unloads ash, each of the closed belt scale detection is obtained successively according to time order and function order
The instantaneous delivery of the dedusting ash of the closed belt scale is flowed through during the moment, until the wink for the dedusting ash that the closed belt scale is detected
Shi Liuliang is less than preset value；
Determine that the electric field ash-storing bin is emptied at the time of the instantaneous delivery correspondence less than preset value；
Wherein, the preset value is the specified ratio for unloading grey flow and preset ratio coefficient of the corresponding unloading valve of electric field ash-storing bin
Value.
5. method according to claim 4, it is characterised in that the dedusting ash detected in the closed belt scale of acquisition
Instantaneous delivery is less than after preset value, described to determine that the electric field ash-storing bin is arranged at the time of the instantaneous delivery correspondence less than preset value
Before sky, in addition to：
It is determined that in the second preset time period not in the same time when closed belt scale detection dedusting ash instantaneous delivery it is equal
Less than preset value, at the time of the initial time of second preset time period is less than the instantaneous delivery correspondence of preset value for described in.
6. a kind of electric cleaner removes the calibrating installation of dust quantity, it is characterised in that installed in the dust pelletizing system of the electric cleaner
Have for measuring the electric cleaner except dust quantity is except dust quantity real-time measurement system, be provided with the downstream of total scraper ash-transmission machine close
Strip of paper used for sealing belt scale, the closed belt scale is used to detect in electric cleaner dust removal process does not flow through the closed belt scale in the same time
Dedusting ash instantaneous delivery；
The calibrating installation includes：
Acquisition module, it is described to remove for obtaining except the relation between dust quantity actual value and dedusting measurement in first time period
Dust quantity measured value by electric cleaner except dust quantity real-time measurement system is obtained, it is described except dust quantity actual value passes through institute
The detection of closed belt scale is stated to obtain；
Calibration module, for using the relation except between dust quantity actual value and dedusting measurement, in second time period
Any duration in dedusting measurement calibrated, the initial time of the second time period is the first time period
End time；
The first time period is from the first moment T1 to the second this period at moment T2 sections；The acquisition module is specifically included：
First acquisition unit, for obtain the closed belt scale from the first moment T1 to second this section of duration of moment T2 in detect
Dedusting ash weight GIt is real；
Second acquisition unit, for obtaining the real-time measurement system out of the 3rd moment T3 to the 4th this period at moment T4 section
Measure obtained dedusting ash weight GSurvey；Wherein, the 3rd moment T3 shifts to an earlier date Δ t than first moment T1, when the described 4th
It is that dedusting ash reaches sealing from each electric field ash-storing bin by ash-transmission system to carve T4 to shift to an earlier date Δ t, the Δ t than second moment T2
The average time that belt conveyer scale needs；
Computing unit, for calculating the dedusting ash weight G that the closed belt scale is detectedIt is realMeasured with the real-time measurement system
Obtained dedusting ash weight GSurveyRatio, the ratio is except dust quantity actual value and dedusting measurement in the first time period
Relation between value.
7. device according to claim 6, it is characterised in that the first acquisition unit includes：
First row gap unit, the dedusting ash for emptying all electric field ash-storing bins for the first time, after all electric field ash-storing bin emptyings
It is the first moment T1 at the time of correspondence；
Control unit, the first preset time is run for controlling electric cleaner to proceed by normal dedusting from first moment T1
Section；
Second row gap unit, the dedusting ash for emptying all electric field ash-storing bins again, when all electric field storage ashes
Storehouse is the second moment T2 at the time of corresponding after emptying again；At first moment T1 to described this section of duration of second moment T2
Interior, the closed belt scale detection does not flow through the instantaneous delivery of the dedusting ash of the closed belt scale in the same time；
Subelement is obtained, for the dedusting ash for not flowing through the closed belt scale in the same time detected according to the closed belt scale
Instantaneous delivery, obtain the dedusting ash of the closed belt scale weighing out of the first moment T1 to the second this period at moment T2 section
Weight GIt is real。
8. device according to claim 7, it is characterised in that the electric cleaner at least include the first electric field ash-storing bin and
Second electric field ash-storing bin, the first row gap unit and/or the second row gap unit are specifically included：
Grey subelement is unloaded in first control, for controlling the first electric field ash-storing bin to unload ash；
First determines emptying subelement, for determining the first electric field ash-storing bin emptying；
Grey subelement is unloaded in second control, determines that emptying subelement determines the first electric field ash-storing bin emptying for described first
Afterwards, the second electric field ash-storing bin is controlled to unload ash；
Second determines emptying subelement, for determining the second electric field ash-storing bin emptying.
9. device according to claim 8, it is characterised in that described first determines emptying subelement and/or described second
It is determined that emptying subelement is specifically included：
Instantaneous delivery subelement is obtained, during unloading ash in electric field ash-storing bin, institute is obtained successively according to time order and function order
The instantaneous delivery of the dedusting ash of the closed belt scale is flowed through during each moment for stating the detection of closed belt scale, until the sealing
The instantaneous delivery of the dedusting ash of belt conveyer scale detection is less than preset value；
Moment determination subelement is emptied, for determining that the electric field ash-storing bin is arranged at the time of the instantaneous delivery correspondence less than preset value
It is empty；
The preset value is the specified ratio for unloading grey flow and preset ratio coefficient of the corresponding unloading valve of electric field ash-storing bin.
10. device according to claim 9, it is characterised in that described first determines emptying subelement and/or described second
It is determined that emptying subelement also includes：
Instantaneous delivery is determined continuously less than default value cell, for being got in the acquisition instantaneous delivery subelement less than default
After the instantaneous delivery of the dedusting ash of value, the emptying moment determination subelement determines the electric field ash-storing bin in the wink less than preset value
At the time of Shi Liuliang correspondences before emptying, determine the instantaneous delivery of dedusting ash of the closed belt scale detection when second is default
Between in section continuously less than preset value, the initial time of second preset time period is the instantaneous delivery pair for being less than preset value
At the time of answering.
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| CN201410776764.XA CN104390690B (en) | 2014-12-15 | 2014-12-15 | A kind of electric cleaner removes the calibration method and device of dust quantity |
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