CN104316129B - A kind of hearth layer for sintering consumption and thickness flexible measurement method and device - Google Patents
A kind of hearth layer for sintering consumption and thickness flexible measurement method and device Download PDFInfo
- Publication number
- CN104316129B CN104316129B CN201410545134.1A CN201410545134A CN104316129B CN 104316129 B CN104316129 B CN 104316129B CN 201410545134 A CN201410545134 A CN 201410545134A CN 104316129 B CN104316129 B CN 104316129B
- Authority
- CN
- China
- Prior art keywords
- mrow
- mlevel
- sintering
- bin
- cycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The embodiment of the invention discloses a kind of hearth layer for sintering consumption and the measuring method and device of grate-layer material thickness, and to measuring the method and device of obtained grate-layer material layer thickness control.The purpose of the present invention is by way of measurement, draw grate-layer material consumption and grate-layer material thickness in real time, judge whether the thickness of measurement meets requirement, and then shop fixtures feed bin lower valve is automatically adjusted, realization is accurately controlled grate-layer material consumption and shop fixtures thickness, reaches the target for improving sinter quality.
Description
Technical field
The present invention relates to SINTERING TECHNOLOGY field, particularly a kind of hearth layer for sintering consumption and thickness flexible measurement method
And device.
Background technology
Sintering in steel manufacture process refers to being incorporated various powdery iron-containing raw materials into appropriate fuel, flux and water, passed through
The ignition on agglomerating plant after mixing and pelletizing, is allowed to occur a series of physical chemical change, mineral powder granular is bonded to
The process of block.In sintering process, in order to ensure bed permeability to improve sintering quality and efficiency, and also to avoid sintering
Bogie grates directly contact with sintered material and produce high intensity abrasion, before the compound of pallet upper berth, should first burn
The thicker material of one layer of the castor bar upper berth granularity of machine trolley is tied, this layer of coarse fodder is called grate-layer material.
In general, grate-layer material uses the finished product of 8-16mm grades in sintering finished ores to be transported to grate-layer material by belt
Storehouse, after chassis operation, then first grate-layer material spreads compound on the basis of grate-layer material, and then exhausting igniting starts sintering process.
Grate-layer material can effectively stop that a large amount of powder are pumped into flue by air exhauster, reduce the dustiness in waste gas, extend exhausting machine rotor
Service life；Grate-layer material is also prevented from Sinter grid section, effective exhausting area is kept constant, air flow method is equal
It is even, so as to improve sintering quality and efficiency.
Strict control grate-layer material thickness is needed simultaneously：If shop fixtures thickness of feed layer is too thick, on the one hand can increase grate-layer material makes
Consumption, causes cost to increase and the wasting of resources, while having an effect on the gas permeability of the bed of material；If grate-layer material thickness is too thin, in sintering
During, when combustion zone is issued to grid section, the high-temp waste gas of combustion zone may burn out grid section or the liquid phase melted
Adhere on grid section, cause grid section scaling loss serious, damage agglomerating plant, shorten service life of equipment, increase the equipment such as grid section
Purchase commodity and its cost of labor.And shop fixtures bin blanking flow (consumption) is calculated, it is to more precisely control grate-layer material
Thickness, the number of blanking flow determines the size of thickness.
At present, the usage amount of grate-layer material can only control to be taped against the paving on chassis by adjusting the lower valve aperture of shop fixtures feed bin
Bed material amount, and lower valve Reusability, have certain abrasion, and with the difference of use time, wear extent is also different.Cause
Under same aperture, discharge quantity is changed.Further resulting in shop fixtures doses can not be distribution accurately controlled, and paving can not be drawn in real time
Bed material thickness.Moreover, sintering plant is in commissioning test or maintenance down, just grate-layer material discharge quantity is adjusted.One
Denier grate-layer material discharge quantity is adjusted, even if improper, also can only could school until next commissioning test either maintenance down
Just, this mode is adjusted inaccurately, and regulating cycle is long, it is impossible to regulation in real time and measurement shop fixtures doses and thickness are realized, up to not
To the purpose for improving Sintering Yield and quality.
The content of the invention
A kind of mode of measurement is provided in the embodiment of the present invention, grate-layer material discharge quantity and grate-layer material thickness are drawn in real time,
It is finally reached the target for improving sinter quality.
The invention provides a kind of hearth layer for sintering consumption measuring method, including：
Gather from (tc- T) to current time tcMinute average sintering machine machine speed in cycle T；
According to the average machine speed of sintering machine in the fast calculating cycle T of average sintering machine machine of minute in the cycle T；
Gather from (tc- T) to current time tcThe shop fixtures bin-level value of minutes point in cycle T；
Shop fixtures bin-level state is determined according to the shop fixtures bin-level value of minutes point in the cycle T；
According to sintering machine average rate in the shop fixtures bin-level state and the cycle T of minutes point in the cycle T
Grate-layer material consumption in degree, calculating cycle T.
Preferably, the average machine trot of sintering machine is suddenly in the minute fast calculating cycle T of average sintering machine machine in the cycle T：
Wherein, SSpeed [1] is time point (t in cycle Tc- T) arrive (tc- T+1) average sintering machine machine speed of corresponding minute；
SSpeed [T] is time point (t in cycle Tc- 1) t is arrivedcAverage sintering machine machine speed of corresponding minute；SSpeed [i] is in cycle T
Time point (tc- ((T-i)+1)) arrive (tc- (T-i)) average sintering machine machine speed of corresponding minute；N represents any
Cycle.
Further, shop fixtures bin-level shape is determined according to the shop fixtures bin-level value of minutes point in the cycle T
State, including：
Determine the shop fixtures bin-level value of minutes point in cycle T；
Wherein, current minutes point tcCorresponding shop fixtures bin-level is MLevel [T+1], minutes point (tc-T)
Corresponding shop fixtures bin-level is MLevel [1], minutes point (tc- T+ (i-1)) corresponding place mat feed bin position MLevel
[i],
Judge the pass between MLevel [T+1], MLevel [T] ... MLevel [i] ..., MLevel [2], MLevel [1]
System；
If MLevel [T+1]<MLevel[T]<...<MLevel[2]<MLevel [1], it is determined that shop fixtures bin-level
State is in decline state；
If MLevel [T+1]>MLevel[T]>...>MLevel[2]>MLevel [1], it is determined that shop fixtures bin-level
State is in propradation；
If
MLevel[1]<MLevel[2]<...<MLevel[i],MLevel[i]>MLevel[i+1]>...>MLevel[T+
1],
Then determine that shop fixtures bin-level state switchs to decline state in rising；
If
MLevel[1]>MLevel[2]>...>MLevel[i],MLevel[i]<MLevel[i+1]<...<MLevel[T+
1],
Then determine that shop fixtures bin-level state switchs to propradation in decline.
Further, according to grate-layer material consumption in the shop fixtures bin-level state computation cycle T：
If a. shop fixtures bin-level state is in decline state, grate-layer material consumption is calculated by the following method：
If b. shop fixtures bin-level state is in propradation, grate-layer material consumption is calculated by the following method：
Wherein CsFor the lower grate-layer material consumption of unit machine speed；
If c. shop fixtures bin-level state turns decline state in rising, grate-layer material consumption is calculated by the following method
Amount：
Wherein, k (k<T+1) represent to rise the flex point for turning decline state；
If d. shop fixtures bin-level state turns propradation in decline, grate-layer material consumption is calculated by the following method
Amount：
Wherein, k (k<T+1) represent to decline the flex point for turning propradation.
Yet further, the lower grate-layer material consumption of the unit machine speed is obtained by the following method is：
(1) according to the average machine speed of any cycle grate-layer material consumption and sintering machine that decline state, obtain under unit machine speed
Grate-layer material consumes Cs, calculation formula isWherein, n represents any week in decline state
Phase；
Or,
(2) if continuously there are multiple cycles in decline state：A. consumed according to any cycle grate-layer material for declining state
Amount and the average machine speed of sintering machine, obtain the lower grate-layer material consumption C (n) of unit machine speed, and calculation formula is
Wherein, n is in any cycle for declining state；
B. the average value of count cycle C (n) is sought, the lower grate-layer material consumption of unit machine speed is obtained, computational methods are as follows：
Wherein, count represents the continuous number of cycles for being in decline state.
Present invention also offers a kind of hearth layer for sintering thickness measuring method, including：
According to above-mentioned hearth layer for sintering consumption measuring method, hearth layer for sintering consumption AMConsume in measurement period T
(n)；
The volume V (n) of hearth layer for sintering in calculating cycle T, method is as follows：
Wherein, ρ represents grate-layer material density, and ρ can be tested and obtained；
Grate-layer material spreads length L (n) on chassis in calculating cycle T, and method is as follows：
Average grate-layer material thickness H (n) in calculating cycle T, method is as follows：
Wherein, W represents chassis width, and W can be tested and obtained, and be
Definite value.
Present invention also offers a kind of hearth layer for sintering layer thickness control method, including：
According to above-mentioned hearth layer for sintering consumption measuring method, hearth layer for sintering consumption is measured；
According to the hearth layer for sintering consumption, be averaged grate-layer material thickness in measurement period T；
Judge the relation between the hearth layer for sintering thickness and setting value；
When the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve maximum opening correspondence flow
1%, then control shop fixtures bin blanking valve of electric valve aperture constant；
When the hearth layer for sintering thickness is more than the poor absolute of setting value and the hearth layer for sintering thickness and setting value
Value is more than the 1% of valve maximum opening correspondence flow, then controls shop fixtures bin blanking valve of electric valve aperture to turn down；
When the hearth layer for sintering thickness is less than the poor absolute of setting value and the hearth layer for sintering thickness and setting value
Value is more than the 1% of valve maximum opening correspondence flow, then controls shop fixtures bin blanking valve of electric valve aperture to tune up.
Further, above-described control shop fixtures bin blanking valve of electric valve aperture is turned down, including：
If the poor absolute value of the hearth layer for sintering thickness and setting value, more than valve maximum opening correspondence flow
5%, it is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation；
If the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve maximum opening correspondence flow
5%, it is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation.
Further, above-described control shop fixtures bin blanking valve of electric valve aperture is tuned up, including：
If the poor absolute value of the hearth layer for sintering thickness and setting value, more than valve maximum opening correspondence flow
5%, it is that 5% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation；
If the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve maximum opening correspondence flow
5%, it is that 1% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation.
Meanwhile, measuring device is consumed present invention also offers a kind of hearth layer for sintering, including：
Machine speed collecting unit, for gathering from (tc- T) to current time tcMinute average sintering machine machine speed in cycle T；
The average fast computing unit of machine, for according to sintering in the fast calculating cycle T of average sintering machine machine of minute in the cycle T
The average machine speed of machine；
Shop fixtures bin-level value collecting unit, for gathering from (tc- T) to current time tcMinutes point in cycle T
Shop fixtures bin-level value；
Shop fixtures bin-level status determining unit, for the shop fixtures bin-level according to minutes point in the cycle T
Value determines shop fixtures bin-level state；
Grate-layer material consumption amount calculation unit, for the shop fixtures bin-level state according to minutes point in the cycle T
And sintering machine average speed in the cycle T, grate-layer material consumption in calculating cycle T.
Preferably, the fast computing unit of average machine, is utilizedIn calculating cycle T
The average machine speed of sintering machine,
Wherein, SSpeed [1] is time point (t in cycle Tc- T) arrive (tc- T+1) average sintering machine machine speed of corresponding minute；
SSpeed [T] is time point (t in cycle Tc- 1) t is arrivedcAverage sintering machine machine speed of corresponding minute；SSpeed [i] is in cycle T
Time point (tc- ((T-i)+1)) arrive (tc- (T-i)) average sintering machine machine speed of corresponding minute；N represents any
Cycle.
Preferably, described shop fixtures bin-level status determining unit, including：
Shop fixtures bin-level value determining unit, the shop fixtures bin-level value for determining minutes point in cycle T；
Wherein, current minutes point tcCorresponding shop fixtures bin-level is MLevel [T+1], minutes point (tc-T)
Corresponding shop fixtures bin-level is MLevel [1], minutes point (tc- T+ (i-1)) corresponding place mat feed bin position MLevel
[i],
Judging unit, for judging MLevel [T+1], MLevel [T] ... MLevel [i] ..., MLevel [2], MLevel
[1] relation between；
Status determining unit, if for MLevel [T+1]<MLevel[T]<...<MLevel[2]<MLevel [1], then
Determine that shop fixtures bin-level state is in decline state；
If MLevel [T+1]>MLevel[T]>...>MLevel[2]>MLevel [1], it is determined that shop fixtures bin-level
State is in propradation；
If
MLevel[1]<MLevel[2]<...<MLevel[i],MLevel[i]>MLevel[i+1]>...>MLevel[T+
1], it is determined that shop fixtures bin-level state switchs to decline state in rising；
If MLevel [1]>MLevel[2]>...>MLevel[i],MLevel[i]<MLevel[i+1]<...<
MLevel [T+1], it is determined that shop fixtures bin-level state switchs to propradation in decline.
Preferably, described grate-layer material consumption amount calculation unit, including：
First computing unit, the grate-layer material consumption for calculating decline state, calculation formula is：
Second computing unit, the grate-layer material consumption for calculating propradation, calculation formula is：
Wherein CsFor the lower grate-layer material consumption of unit machine speed；
3rd computing unit, the grate-layer material consumption for turning decline state is risen for calculating, and calculation formula is：
Wherein, k (k<T+1) represent to rise the flex point for turning decline state；
4th computing unit, the grate-layer material consumption for turning propradation is declined for calculating, and calculation formula is：
Wherein, k (k<T+1) represent to decline the flex point for turning propradation.
Present invention also offers a kind of hearth layer for sintering thickness measurement apparatus, including above-mentioned hearth layer for sintering consumption measurement
Device and thickness computing unit, thickness computing unit are used for hearth layer for sintering thickness in calculating cycle T.
Present invention also offers a kind of hearth layer for sintering layer thickness control device, including：
Above-described hearth layer for sintering consumes measuring device, for obtaining grate-layer material consumption in cycle T；
Thickness computing unit, thickness is consumed for grate-layer material in calculating cycle T；
Thickness judging unit, for judging that described grate-layer material consumes the relation between thickness and setting value, and；
First control unit, for when the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve most
The 1% of big aperture correspondence flow, then control shop fixtures bin blanking valve of electric valve aperture constant；
Second control unit, for being more than setting value and the hearth layer for sintering thickness when the hearth layer for sintering thickness
It is more than the 1% of the corresponding flow of valve maximum opening with the poor absolute value of setting value, then control shop fixtures bin blanking motor-driven valve valve
Door aperture is turned down；
3rd control unit, for being less than setting value and the hearth layer for sintering thickness when the hearth layer for sintering thickness
It is more than the 1% of the corresponding flow of valve maximum opening with the poor absolute value of setting value, then control shop fixtures bin blanking motor-driven valve valve
Door aperture is tuned up.
Preferably, the second described control unit, including：First coarse adjustment unit and the first fine-adjusting unit；
First coarse adjustment unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, more than valve
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation when maximum opening corresponds to the 5% of flow；
First fine-adjusting unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, according to regulation
Amplitude is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down.
Preferably, the 3rd described control unit, including：Second coarse adjustment unit and the second fine-adjusting unit；
Second coarse adjustment unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, more than valve
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation when maximum opening corresponds to the 5% of flow；
Second fine-adjusting unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, less than valve
It is that 1% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation when maximum opening corresponds to the 5% of flow.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the hearth layer for sintering consumption measuring method exemplary process diagram of the embodiment of the present invention one.
Fig. 2 is the hearth layer for sintering thickness measuring method exemplary process diagram of the embodiment of the present invention two.
Fig. 3 is the hearth layer for sintering layer thickness control method exemplary process diagram of the embodiment of the present invention three.
Fig. 4 is the structural representation that the hearth layer for sintering that the embodiment of the present invention four is provided consumes measuring device.
Fig. 5 is the structural representation for the hearth layer for sintering thickness measurement apparatus that the embodiment of the present invention five is provided.
Fig. 6 is the structural representation for the hearth layer for sintering layer thickness control device that the embodiment of the present invention six is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
For the comprehensive understanding present invention, numerous concrete details are refer in the following detailed description, but this area skill
Art personnel are it should be understood that the present invention can be realized without these details.In other embodiments, it is not described in detail known
Method, process, component and circuit, in order to avoid undesirably result in embodiment obscure.
Embodiment one：
Fig. 1 is the hearth layer for sintering consumption measuring method exemplary process diagram of the embodiment of the present invention one.
A kind of hearth layer for sintering consumption measuring method is present embodiments provided, methods described can include：
S11：Minute average sintering machine machine speed in collection period T.
Cycle T, i.e. T minute are once calculated.T can determine that selected standard is to ensure that according to on-site actual situations
Shop fixtures bin-level can only at most occur once from the material position change shape for rising turn decline or turning to rise from decline in cycle T
State.It is definite value after selected.Optional T≤5 minute herein.
Sintering machine machine speed, i.e. chassis gait of march.
Minute, average machine speed referred to, the fast instantaneous values of 60 sintering machine machines of collection per minute, then this 60 values are averaged,
Be designated as minute average sintering machine machine speed, and by minute be averaged the fast value of machine be stored in it is standby in database.
Minute average sintering machine machine speed, exactly reads from (t in collection period Tc- T) to current time tcIt is stored in database
T interior minute average sintering machine machine speed.
S12：The average machine speed of sintering machine in calculating cycle T.
It will be averaged from the T minute average sintering machine machine speed in the cycle T that database is read, obtain burning in cycle T
The average machine speed of knot machine.
Preferably, can be averaged minute sintering machine machine speed one-dimension array SSpeed [] (data element number is T) expression,
Wherein, SSpeed [1] is time point (t in cycle Tc- T) arrive (tc- T+1) average sintering machine machine speed of corresponding minute；SSpeed
[T] is time point (t in cycle Tc- 1) t is arrivedcAverage sintering machine machine speed of corresponding minute；SSpeed [i] is time point in cycle T
(tc- ((T-i)+1)) arrive (tc- (T-i)) average sintering machine machine speed of corresponding minute；
So, the calculation formula of the average machine speed of sintering machine is in cycle T：This
Place n represents the average machine speed of sintering machine in any period, that is, any one cycle T and can calculated according to above method.But
It is that the actual size of the average machine speed of sintering machine might have difference in each cycle T.
S13：The shop fixtures bin-level value of minutes point in collection period T.
Minutes point, i.e., whole minutes point.Gather from (tc- T) to current time tc, minutes point in cycle T
Shop fixtures bin-level value, amounts to (T+1) individual value.
Preferably, shop fixtures bin-level value can be stored in one-dimension array MLevel [] (data element number is T+1),
Wherein, current minutes point tcCorresponding shop fixtures bin-level is MLevel [T+1], minutes point (tc- T) corresponding paving
Bottom bin-level is MLevel [1], minutes point (tc- T+ (i-1)) corresponding place mat feed bin position MLevel [i],
S14：Determine shop fixtures bin-level state.
The change of shop fixtures bin-level is mainly inlet amount and consumption is determined, when grate-layer material feed belt is fed, charging
Total amount is more than the consumption of grate-layer material chassis, now, and shop fixtures bin-level is in propradation；When grate-layer material feed belt stops
Fortune, shop fixtures feed bin is not fed, and only chassis grate-layer material is consumed, now, and shop fixtures bin-level is in decline state.Whole shop fixtures
Expect that zigzag is presented in material position change, have propradation, decline state, rising turns decline state and decline turns propradation, totally 4 kinds
State.
Preferably, it is possible to use method determines shop fixtures bin-level state below：
First, the shop fixtures bin-level value of minutes point in cycle T is determined；
Then, judge between MLevel [T+1], MLevel [T] ... MLevel [i] ..., MLevel [2], MLevel [1]
Relation：
If MLevel [T+1]<MLevel[T]<...<MLevel[2]<MLevel [1], it is determined that shop fixtures bin-level
State is in decline state；
If MLevel [T+1]>MLevel[T]>...>MLevel[2]>MLevel [1], it is determined that shop fixtures bin-level
State is in propradation；
If
MLevel[1]<MLevel[2]<...<MLevel[i],MLevel[i]>MLevel[i+1]>...>MLevel[T+
1], it is determined that shop fixtures bin-level state switchs to decline state in rising；
If
MLevel[1]>MLevel[2]>...>MLevel[i],MLevel[i]<MLevel[i+1]<...<MLevel[T+
1], it is determined that shop fixtures bin-level state switchs to propradation in decline；
S15：Grate-layer material consumption in calculating cycle T.
Grate-layer material consumption in the shop fixtures bin-level state computation cycle T determined according to the above method.Different shop fixtures
The computational methods of grate-layer material consumption are different in cycle T corresponding to bin-level state.
If a. shop fixtures bin-level is in decline state, by the following method grate-layer material consumption in calculating cycle T：
When shop fixtures bin-level is in decline state, only chassis grate-layer material is consumed, and is not fed.According in cycle T points
Clock time point (tc- T+ (i-1)) arrive ((tc- T+ (i-1)) -1) corresponding shop fixtures bin-level value MLevel [i] and MLevel
The difference of [i-1], grate-layer material consumption in cycle T is obtained by cumulative calculation.
In the case that grate-layer material storehouse lower valve aperture is certain, discharge quantity is certain in the unit interval, when chassis is run,
The shop fixtures doses that sintering machine speed (i.e. the chassis speed of service) is taped against in pallet unit area sooner is fewer.It can utilize down
Grate-layer material consumption in the cycle T of drop state, sets up the relation of grate-layer material consumption and sintering machine machine speed, therefore, under unit machine speed
Grate-layer material consumes Cs, calculation formula is as follows：
Wherein, n represents any cycle in decline state；
Preferably, if multiple continuous cycles, state is declined in shop fixtures bin-level, then can be tired to the cycle
Evaluation does increasing 1 and operated, i.e. count=count+1, and to CsIt is updated, obtains the lower grate-layer material of optimal unit machine speed and disappear
Consume Cs, and by CsDeposit background data base is standby, and calculation formula is as follows：
Wherein, count represents the continuous number of cycles for being in decline state.
If b. shop fixtures bin-level is in propradation, by the following method grate-layer material consumption in calculating cycle T：
Wherein CsFor the fast grate-layer material consumption of unit machine.
When shop fixtures bin-level is in propradation, existing grate-layer material chassis consumption has the charging of grate-layer material conveyer belt, just again
Grate-layer material consumption can not be calculated using shop fixtures bin-level value.The lower grate-layer material consumption C of unit machine speed can now be utilizedsWith
Average sintering machine machine speed of corresponding minute, obtains grate-layer material consumption in cycle T.
If c. shop fixtures bin-level turns decline state in rising, grate-layer material disappears in calculating cycle T by the following method
Consumption：
Wherein, k (k<T+1) represent to rise the flex point for turning decline state；
Shop fixtures bin-level in rising turn decline state when, can with calculating cycle T be in propradation grate-layer material
Consumption and the grate-layer material consumption sum in decline state, obtain grate-layer material consumption in cycle T.
If d. shop fixtures bin-level state turns propradation in decline, grate-layer material disappears in cycle T by the following method
Consumption：
Wherein, k (k<T+1) represent to decline the flex point for turning to rise.
Shop fixtures bin-level in decline turn propradation when, can with calculating cycle T be in decline state grate-layer material
Consumption and the grate-layer material consumption sum in propradation, obtain grate-layer material consumption in cycle T.
Further, can be with the average grate-layer material consumption of unit interval (minute) in calculating cycle T using above method
Amount.
Yet further, using above method, unit interval (minute) average grate-layer material can also be calculated in the period and disappeared
Consumption.
Embodiment two：
Fig. 2 is the hearth layer for sintering thickness measuring method exemplary process diagram of the embodiment of the present invention two.Present embodiments provide
A kind of hearth layer for sintering thickness measuring method, methods described can include：
S21：Minute average sintering machine machine speed in collection period T.
S22：The average machine speed of sintering machine in calculating cycle T.
S23：The shop fixtures bin-level value of minutes point in collection period T.
S24：Determine shop fixtures bin-level state.
S25：Grate-layer material consumption in calculating cycle T.
On above-mentioned steps S21~S25 detailed description, the step in above-mentioned embodiment illustrated in fig. 1 one for details, reference can be made to
S11~S25 description, will not be repeated here.
S26:Calculate average grate-layer material thickness in week T.
First, the relation between quality and volume, density is utilized：
Grate-layer material consumption AMConsume (n)=ρ gV (n) in cycle T, wherein, V (n) represents grate-layer material body in cycle T
Product, ρ represents grate-layer material density, and ρ can be tested and obtained.
The volume V (n) for obtaining hearth layer for sintering in cycle T is calculated,
Then, grate-layer material spreads length L (n) on chassis in calculating cycle T, and method is as follows：
Finally, using grate-layer material volume V (n) in cycle T, V (n)=L (n) * W*H (n), wherein, H (n) represents to calculate week
Average grate-layer material thickness in phase T, L (n) represents that grate-layer material spreads length on chassis, and W represents chassis width, and W can be tested and obtained,
For definite value；
It is derived by, average grate-layer material thickness H (n) in cycle T：
Further, can be with the average grate-layer material thickness of unit interval (minute) in calculating cycle T using above method.
Yet further, using above method, unit interval (minute) the average shop fixtures bed of material can also be calculated in the period
It is thick.
Embodiment three：
Fig. 3 is the hearth layer for sintering layer thickness control method exemplary process diagram of the embodiment of the present invention three.Present embodiments provide
A kind of hearth layer for sintering layer thickness control method, methods described can include：
S31：Minute average sintering machine machine speed in collection period T.
S32：The average machine speed of sintering machine in calculating cycle T.
S33：The shop fixtures bin-level value of minutes point in collection period T.
S34：Determine shop fixtures bin-level state.
S35：Grate-layer material consumption in calculating cycle T.
S36：Grate-layer material thickness in calculating cycle T.
On above-mentioned steps S31~S6 detailed description, the step in above-mentioned embodiment illustrated in fig. 1 one for details, reference can be made to
S11~S25 and the step S26 in embodiment illustrated in fig. 2 two description, will not be repeated here.
S37：Judge the relation between hearth layer for sintering thickness and setting value.
It if shop fixtures thickness of feed layer is too thick, on the one hand can increase grate-layer material usage amount, cause cost to increase and the wasting of resources,
The gas permeability of the bed of material is had an effect on simultaneously；If grate-layer material thickness is too thin, in sintering process, when combustion zone is issued to fire grate bar
When, grid section may be burnt out or the liquid phase melted is adhered on grid section by the high-temp waste gas of combustion zone, cause grid section scaling loss
Seriously, agglomerating plant is damaged, shortens service life of equipment, increases the purchase commodity and its cost of labor of the equipment such as grid section.
S38：Control shop fixtures bin blanking valve of electric valve aperture constant.
When the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve maximum opening correspondence flow
1%, then control shop fixtures bin blanking valve of electric valve aperture constant.
S39：Control shop fixtures bin blanking valve of electric valve aperture is turned down.
When the poor absolute value of the hearth layer for sintering thickness and setting value, more than valve maximum opening correspondence flow
1%, and the hearth layer for sintering thickness is more than setting value, then controls shop fixtures bin blanking valve of electric valve aperture to turn down.
S30：Control shop fixtures bin blanking valve of electric valve aperture is tuned up.
When the poor absolute value of the hearth layer for sintering thickness and setting value, more than valve maximum opening correspondence flow
1%, and the hearth layer for sintering thickness is less than setting value, then controls shop fixtures bin blanking valve of electric valve aperture to tune up.
Preferably, described control shop fixtures bin blanking valve of electric valve aperture is turned down, including：
If the poor absolute value of the hearth layer for sintering thickness and setting value, more than valve maximum opening correspondence flow
5%, valve regulated amplitude is 5%；
If the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve maximum opening correspondence flow
5%, valve regulated amplitude is 1%.
Preferably, described control shop fixtures bin blanking valve of electric valve aperture is tuned up, including：
If the poor absolute value of the hearth layer for sintering thickness and setting value, more than valve maximum opening correspondence flow
5%, valve regulated amplitude is 5%；
If the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve maximum opening correspondence flow
5%, valve regulated amplitude is 1%.
Example IV：
Fig. 4 is the structural representation that the hearth layer for sintering that the embodiment of the present invention four is provided consumes measuring device.
Measuring device is consumed present invention also offers a kind of hearth layer for sintering, including：
Machine speed collecting unit 11, for gathering from (tc- T) to current time tcMinute average sintering machine machine speed in cycle T；
The average fast computing unit 12 of machine, for according to burning in the fast calculating cycle T of average sintering machine machine of minute in the cycle T
The average machine speed of knot machine；
Shop fixtures bin-level value collecting unit 13, for gathering from (tc- T) to current time tcMinutes point in cycle T
Shop fixtures bin-level value；
Shop fixtures bin-level status determining unit 14, for the shop fixtures feed bin material according to minutes point in the cycle T
Place value determines shop fixtures bin-level state；
Grate-layer material consumption amount calculation unit 15, for the shop fixtures bin-level shape according to minutes point in the cycle T
Grate-layer material consumption in sintering machine average speed in state and the cycle T, calculating cycle T.
In the embodiment of the present application, grate-layer material consumption amount calculation unit 15 can include：First computing unit, second calculate
Unit, the 3rd computing unit and the 4th computing unit, wherein,
First computing unit, the grate-layer material consumption for calculating decline state, calculation formula is：
Second computing unit, the grate-layer material consumption for calculating propradation, calculation formula is：
Wherein CsFor the lower grate-layer material consumption of unit machine speed；
3rd computing unit, the grate-layer material consumption for turning decline state is risen for calculating, and calculation formula is：
Wherein, k (k<T+1) represent to rise the flex point for turning decline state；
4th computing unit, the grate-layer material consumption for turning propradation is declined for calculating, and calculation formula is：
Wherein, k (k<T+1) represent to decline the flex point for turning propradation.
The relevant explanation of the hearth layer for sintering consumption measuring device provided on example IV may be referred to embodiment one
The explanation of the hearth layer for sintering consumption measuring method of middle offer.
Embodiment five：
Fig. 5 is the structural representation for the hearth layer for sintering thickness measurement apparatus that the embodiment of the present invention five is provided.
Present invention also offers a kind of hearth layer for sintering thickness measurement apparatus, including：
Machine speed collecting unit 21, for gathering from (tc- T) to current time tcMinute average sintering machine machine speed in cycle T；
The average fast computing unit 22 of machine, for according to burning in the fast calculating cycle T of average sintering machine machine of minute in the cycle T
The average machine speed of knot machine；
Shop fixtures bin-level value collecting unit 23, for gathering from (tc- T) to current time tcMinutes point in cycle T
Shop fixtures bin-level value；
Shop fixtures bin-level status determining unit 24, for the shop fixtures feed bin material according to minutes point in the cycle T
Place value determines shop fixtures bin-level state；
Grate-layer material consumption amount calculation unit 25, for the shop fixtures bin-level shape according to minutes point in the cycle T
Grate-layer material consumption in sintering machine average speed in state and the cycle T, calculating cycle T.
Thickness computing unit 26, for according to grate-layer material consumption in cycle T, average grate-layer material thickness in calculating cycle T.
Embodiment six：
Fig. 6 is the structural representation for the hearth layer for sintering layer thickness control device that the embodiment of the present invention six is provided.
Present invention also offers a kind of hearth layer for sintering layer thickness control device, including：
Machine speed collecting unit 31, for gathering from (tc- T) to current time tcMinute average sintering machine machine speed in cycle T；
The average fast computing unit 32 of machine, for according to burning in the fast calculating cycle T of average sintering machine machine of minute in the cycle T
The average machine speed of knot machine；
Shop fixtures bin-level value collecting unit 33, for gathering from (tc- T) to current time tcMinutes point in cycle T
Shop fixtures bin-level value；
Shop fixtures bin-level status determining unit 34, for the shop fixtures feed bin material according to minutes point in the cycle T
Place value determines shop fixtures bin-level state；
Grate-layer material consumption amount calculation unit 35, for the shop fixtures bin-level shape according to minutes point in the cycle T
Grate-layer material consumption in sintering machine average speed in state and the cycle T, calculating cycle T.
Thickness computing unit 36, for according to grate-layer material consumption in cycle T, average grate-layer material thickness in calculating cycle T.
Thickness judging unit 37, for judging the relation between described grate-layer material thickness and setting value.
First control unit 38, for when the poor absolute value of the hearth layer for sintering thickness and setting value, less than valve
The 1% of maximum opening correspondence flow, then control shop fixtures bin blanking valve of electric valve aperture constant；
Second control unit 39, for being more than setting value and hearth layer for sintering layer when the hearth layer for sintering thickness
It is thick to be more than the 1% of the corresponding flow of valve maximum opening with the poor absolute value of setting value, then control shop fixtures bin blanking motor-driven valve
Valve opening is turned down；
3rd control unit 30, for being less than setting value and hearth layer for sintering layer when the hearth layer for sintering thickness
It is thick to be more than the 1% of the corresponding flow of valve maximum opening with the poor absolute value of setting value, then control shop fixtures bin blanking motor-driven valve
Valve opening is tuned up.
In the embodiment of the application one, the second control unit 39 can include：First coarse adjustment unit and the first fine-adjusting unit；
First coarse adjustment unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, more than valve
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation when maximum opening corresponds to the 5% of flow；
First fine-adjusting unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, according to regulation
Amplitude is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down.
In the embodiment of the application one, the 3rd control unit 30 can include：Second coarse adjustment unit and the second fine-adjusting unit；
Second coarse adjustment unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, more than valve
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation when maximum opening corresponds to the 5% of flow；
Second fine-adjusting unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, less than valve
It is that 1% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation when maximum opening corresponds to the 5% of flow.
The relevant explanation of the hearth layer for sintering thickness measurement apparatus provided on embodiment six may be referred in embodiment three
The explanation of the hearth layer for sintering thickness measuring method of offer.
Claims (15)
1. a kind of hearth layer for sintering consumption measuring method, it is characterised in that including：
Gather from (tc- T) to current time tcMinute average sintering machine machine speed in cycle T；
According to the average machine speed of sintering machine in the fast calculating cycle T of average sintering machine machine of minute in the cycle T；
Gather from (tc- T) to current time tcThe shop fixtures bin-level value of minutes point in cycle T；
Shop fixtures bin-level state is determined according to the shop fixtures bin-level value of minutes point in the cycle T；
According to sintering machine average speed in the shop fixtures bin-level state and the cycle T of minutes point in the cycle T, meter
Calculate grate-layer material consumption in cycle T；
According to grate-layer material consumption in the shop fixtures bin-level state computation cycle T：
If a. shop fixtures bin-level state is in decline state, grate-layer material consumption is calculated by the following method：
<mrow>
<mi>A</mi>
<mi>M</mi>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>e</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>2</mn>
</mrow>
<mrow>
<mi>T</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
</munderover>
<mrow>
<mo>(</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>-</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
If b. shop fixtures bin-level state is in propradation, grate-layer material consumption is calculated by the following method：
<mrow>
<mi>A</mi>
<mi>K</mi>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>e</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>T</mi>
</munderover>
<mrow>
<mo>(</mo>
<msub>
<mi>C</mi>
<mi>s</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Wherein CsFor the lower grate-layer material consumption of unit machine speed；
If c. shop fixtures bin-level state turns decline state in rising, grate-layer material consumption is calculated by the following method：
<mrow>
<mi>A</mi>
<mi>M</mi>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>e</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>k</mi>
</munderover>
<mrow>
<mo>(</mo>
<msub>
<mi>C</mi>
<mi>s</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>+</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mi>k</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
<mrow>
<mi>T</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
</munderover>
<mrow>
<mo>(</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>-</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Wherein, k (k ＜ T+1) represents to rise the flex point for turning decline state；
If d. shop fixtures bin-level state turns propradation in decline, grate-layer material consumption is calculated by the following method：
<mrow>
<mi>A</mi>
<mi>M</mi>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>e</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>2</mn>
</mrow>
<mi>k</mi>
</munderover>
<mrow>
<mo>(</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>-</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>+</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mi>k</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
<mi>T</mi>
</munderover>
<mrow>
<mo>(</mo>
<msub>
<mi>C</mi>
<mi>s</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Wherein, SSpeed [1] is time point (t in cycle Tc- T) arrive (tc- T+1) average sintering machine machine speed of corresponding minute；
SSpeed [T] is time point (t in cycle Tc- 1) t is arrivedcAverage sintering machine machine speed of corresponding minute；SSpeed [i] is in cycle T
Time point (tc- ((T-i)+1)) arrive (tc- (T-i)) average sintering machine machine speed of corresponding minute；During current minute
Between point tcCorresponding shop fixtures bin-level is MLevel [T+1], minutes point (tc- T) corresponding shop fixtures bin-level is
MLevel [1], minutes point (tc- T+ (i-1)) corresponding place mat feed bin position MLevel [i],N, which is represented, to be appointed
One cycle；K (k ＜ T+1) represents to decline the flex point for turning propradation.
2. hearth layer for sintering consumption measuring method according to claim 1, it is characterised in that according in the cycle T
The average machine trot of sintering machine is suddenly in the minute fast calculating cycle T of average sintering machine machine：
<mrow>
<mi>A</mi>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mfrac>
<mrow>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>T</mi>
</munderover>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
</mrow>
<mi>T</mi>
</mfrac>
<mo>,</mo>
</mrow>
Wherein, SSpeed [1] is time point (t in cycle Tc- T) arrive (tc- T+1) average sintering machine machine speed of corresponding minute；
SSpeed [T] is time point (t in cycle Tc- 1) t is arrivedcAverage sintering machine machine speed of corresponding minute；SSpeed [i] is in cycle T
Time point (tc- ((T-i)+1)) arrive (tc- (T-i)) average sintering machine machine speed of corresponding minute；N represents any
Cycle.
3. hearth layer for sintering consumption measuring method according to claim 1, it is characterised in that according in the cycle T
The shop fixtures bin-level value of minutes point determines shop fixtures bin-level state, including：
Determine the shop fixtures bin-level value of minutes point in cycle T；Wherein, current minutes point tcCorresponding shop fixtures feed bin
Material position is MLevel [T+1], minutes point (tc- T) corresponding shop fixtures bin-level is MLevel [1], minutes point (tc-
T+ (i-1)) corresponding place mat feed bin position MLevel [i],
Judge the relation between MLevel [T+1], MLevel [T] ... MLevel [i] ..., MLevel [2], MLevel [1]；
If MLevel [T+1] ＜ MLevel [T] ＜ ... ＜ MLevel [2] ＜ MLevel [1], it is determined that shop fixtures bin-level
State is in decline state；
If MLevel [T+1] ＞ MLevel [T] ＞ ... ＞ MLevel [2] ＞ MLevel [1], it is determined that shop fixtures bin-level
State is in propradation；
If
MLevel [1] ＜ MLevel [2] ＜ ... ＜ MLevel [i], MLevel [i] ＞ MLevel [i+1] ＞ ... ＞ MLevel
[T+1], it is determined that shop fixtures bin-level state switchs to decline state in rising；
If
MLevel [1] ＞ MLevel [2] ＞ ... ＞ MLevel [i], MLevel [i] ＜ MLevel [i+1] ＜ ... ＜ MLevel
[T+1], it is determined that shop fixtures bin-level state switchs to propradation in decline.
4. hearth layer for sintering consumption measuring method according to claim 3, it is characterised in that obtain by the following method
Grate-layer material consumption is under the unit machine speed：
(1) according to the average machine speed of any cycle grate-layer material consumption and sintering machine that decline state, the lower shop fixtures of unit machine speed is obtained
Material consumption Cs, calculation formula isWherein, n represents any cycle of decline state；
Or,
(2) if continuous count cycle occur in decline state：
A. according to the average machine speed of any cycle grate-layer material consumption and sintering machine that decline state, the lower grate-layer material of unit machine speed is obtained
C (n) is consumed, calculation formula isWherein, n is any cycle of decline state；
B. the average value of count cycle C (n) is sought, the lower grate-layer material consumption of unit machine speed is obtained, computational methods are as follows：
<mrow>
<msub>
<mi>C</mi>
<mi>s</mi>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mrow>
<mi>c</mi>
<mi>o</mi>
<mi>u</mi>
<mi>n</mi>
<mi>t</mi>
</mrow>
</munderover>
<mi>C</mi>
<mrow>
<mo>(</mo>
<mi>i</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mi>c</mi>
<mi>o</mi>
<mi>u</mi>
<mi>n</mi>
<mi>t</mi>
</mrow>
</mfrac>
<mo>;</mo>
</mrow>
Wherein, count represents the continuous number of cycles for being in decline state.
5. a kind of hearth layer for sintering thickness measuring method, it is characterised in that including：
According to any one of claim 1-4 hearth layer for sintering consumption measuring methods, hearth layer for sintering consumption in measurement period T
AMConsume(n)；
The volume V (n) of hearth layer for sintering in calculating cycle T, method is as follows：
Wherein, ρ represents grate-layer material density, can test and obtain；G represents acceleration of gravity；
Grate-layer material spreads length L (n) on chassis in calculating cycle T, and method is as follows：
<mrow>
<mi>L</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>T</mi>
</munderover>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>;</mo>
</mrow>
2
Average grate-layer material thickness H (n) in calculating cycle T, method is as follows：
Wherein, W represents chassis width, and W can be tested and obtained, and be definite value.
6. a kind of hearth layer for sintering layer thickness control method, it is characterised in that including：
Sintering shop fixtures in hearth layer for sintering consumption measuring method according to any one of claim 1-4, measurement period T
Expect consumption；
According to the hearth layer for sintering consumption, be averaged grate-layer material thickness in measurement period T；
Judge the relation between the hearth layer for sintering thickness and setting value；
When the poor absolute value of the hearth layer for sintering thickness and setting value is less than the 1% of the corresponding flow of valve maximum opening, then
Control shop fixtures bin blanking valve of electric valve aperture constant；
When the poor absolute value that the hearth layer for sintering thickness is more than setting value and the hearth layer for sintering thickness and setting value is big
In the 1% of valve maximum opening correspondence flow, then shop fixtures bin blanking valve of electric valve aperture is controlled to turn down；
When the poor absolute value that the hearth layer for sintering thickness is less than setting value and the hearth layer for sintering thickness and setting value is big
In the 1% of valve maximum opening correspondence flow, then shop fixtures bin blanking valve of electric valve aperture is controlled to tune up.
7. hearth layer for sintering layer thickness control method according to claim 6, it is characterised in that described control shop fixtures feed bin
Blanking valve of electric valve aperture is turned down, including：
If the poor absolute value of the hearth layer for sintering thickness and setting value is more than the 5% of the corresponding flow of valve maximum opening,
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation；
If the poor absolute value of the hearth layer for sintering thickness and setting value is less than the 5% of the corresponding flow of valve maximum opening,
It is that 1% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation.
8. hearth layer for sintering layer thickness control method according to claim 6, it is characterised in that described control shop fixtures feed bin
Blanking valve of electric valve aperture is tuned up, including：
If the poor absolute value of the hearth layer for sintering thickness and setting value is more than the 5% of the corresponding flow of valve maximum opening,
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation；
If the poor absolute value of the hearth layer for sintering thickness and setting value is less than the 5% of the corresponding flow of valve maximum opening,
It is that 1% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation.
9. a kind of hearth layer for sintering consumes measuring device, it is characterised in that including：
Machine speed collecting unit, for gathering from (tc- T) to current time tcMinute average sintering machine machine speed in cycle T；
The average fast computing unit of machine, for according to sintering machine in the fast calculating cycle T of average sintering machine machine of minute in the cycle T
Equal machine speed；
Shop fixtures bin-level value collecting unit, for gathering from (tc- T) to current time tcThe shop fixtures of minutes point in cycle T
Bin-level value；
Shop fixtures bin-level status determining unit, it is true for the shop fixtures bin-level value according to minutes point in the cycle T
Determine shop fixtures bin-level state；
Grate-layer material consumption amount calculation unit, for according to the shop fixtures bin-level state of minutes point and institute in the cycle T
State grate-layer material consumption in sintering machine average speed in cycle T, calculating cycle T；
Described grate-layer material consumption amount calculation unit, including：
First computing unit, the grate-layer material consumption for calculating decline state, calculation formula is：
Second computing unit, the grate-layer material consumption for calculating propradation, calculation formula is：
Wherein CsFor the lower grate-layer material consumption of unit machine speed；
3rd computing unit, the grate-layer material consumption for turning decline state is risen for calculating, and calculation formula is：
<mrow>
<mi>A</mi>
<mi>M</mi>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>e</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>k</mi>
</munderover>
<mrow>
<mo>(</mo>
<msub>
<mi>C</mi>
<mi>s</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>+</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mi>k</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
<mrow>
<mi>T</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
</munderover>
<mrow>
<mo>(</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>-</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Wherein, k (k ＜ T+1) represents to rise the flex point for turning decline state；
4th computing unit, the grate-layer material consumption for turning propradation is declined for calculating, and calculation formula is：
<mrow>
<mi>A</mi>
<mi>M</mi>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>e</mi>
<mrow>
<mo>(</mo>
<mi>n</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>2</mn>
</mrow>
<mi>k</mi>
</munderover>
<mrow>
<mo>(</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>-</mo>
<mi>M</mi>
<mi>L</mi>
<mi>e</mi>
<mi>v</mi>
<mi>e</mi>
<mi>l</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>+</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mi>k</mi>
<mo>+</mo>
<mn>1</mn>
</mrow>
<mi>T</mi>
</munderover>
<mrow>
<mo>(</mo>
<msub>
<mi>C</mi>
<mi>s</mi>
</msub>
<mo>&CenterDot;</mo>
<mi>S</mi>
<mi>S</mi>
<mi>p</mi>
<mi>e</mi>
<mi>e</mi>
<mi>d</mi>
<mo>&lsqb;</mo>
<mi>i</mi>
<mo>&rsqb;</mo>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Wherein, SSpeed [1] is time point (t in cycle Tc- T) arrive (tc- T+1) average sintering machine machine speed of corresponding minute；
SSpeed [T] is time point (t in cycle Tc- 1) t is arrivedcAverage sintering machine machine speed of corresponding minute；SSpeed [i] is in cycle T
Time point (tc- ((T-i)+1)) arrive (tc- (T-i)) average sintering machine machine speed of corresponding minute；During current minute
Between point tcCorresponding shop fixtures bin-level is MLevel [T+1], minutes point (tc- T) corresponding shop fixtures bin-level is
MLevel [1], minutes point (tc- T+ (i-1)) corresponding place mat feed bin position MLevel [i],N, which is represented, to be appointed
One cycle；K (k ＜ T+1) represents to decline the flex point for turning propradation.
10. hearth layer for sintering according to claim 9 consumes measuring device, it is characterised in that the average machine speed meter
Unit is calculated, is utilizedThe average machine speed of sintering machine in calculating cycle T, wherein,
SSpeed [1] is time point (t in cycle Tc- T) arrive (tc- T+1) average sintering machine machine speed of corresponding minute；SSpeed[T]
For time point (t in cycle Tc- 1) t is arrivedcAverage sintering machine machine speed of corresponding minute；SSpeed [i] is time point (t in cycle Tc-
((T-i)+1)) arrive (tc- (T-i)) average sintering machine machine speed of corresponding minute；Current minutes point tcCorresponding shop fixtures feed bin
Material position is MLevel [T+1], minutes point (tc- T) corresponding shop fixtures bin-level is MLevel [1], minutes point (tc-
T+ (i-1)) corresponding place mat feed bin position MLevel [i], N represents any cycle.
11. hearth layer for sintering according to claim 9 consumes measuring device, it is characterised in that described shop fixtures feed bin
Material position status determining unit, including：
Shop fixtures bin-level value determining unit, the shop fixtures bin-level value for determining minutes point in cycle T；Wherein, when
Preceding minutes point tcCorresponding shop fixtures bin-level is MLevel [T+1], minutes point (tc- T) corresponding shop fixtures feed bin material
Position is MLevel [1], minutes point (tc- T+ (i-1)) corresponding place mat feed bin position MLevel [i],
Judging unit, for judging MLevel [T+1], MLevel [T] ... MLevel [i] ..., MLevel [2], MLevel [1]
Between relation；
Status determining unit, if for MLevel [T+1] ＜ MLevel [T] ＜ ... ＜ MLevel [2] ＜ MLevel [1],
Determine that shop fixtures bin-level state is in decline state；
If MLevel [T+1] ＞ MLevel [T] ＞ ... ＞ MLevel [2] ＞ MLevel [1], it is determined that shop fixtures bin-level
State is in propradation；
If
MLevel [1] ＜ MLevel [2] ＜ ... ＜ MLevel [i], MLevel [i] ＞ MLevel [i+1] ＞ ... ＞ MLevel
[T+1], it is determined that shop fixtures bin-level state switchs to decline state in rising；
If
MLevel [1] ＞ MLevel [2] ＞ ... ＞ MLevel [i], MLevel [i] ＜ MLevel [i+1] ＜ ... ＜ MLevel
[T+1], it is determined that shop fixtures bin-level state switchs to propradation in decline.
12. a kind of hearth layer for sintering thickness measurement apparatus, it is characterised in that including the burning any one of claim 9-11
Grate-layer material consumption measuring device and thickness computing unit are tied, thickness computing unit is used for the average shop fixtures bed of material in calculating cycle T
It is thick.
13. a kind of hearth layer for sintering layer thickness control device, it is characterised in that including：
Hearth layer for sintering consumption measuring device any one of claim 9-11, for obtaining grate-layer material in cycle T
Consumption；
Thickness computing unit, for average grate-layer material thickness in calculating cycle T；
Thickness judging unit, for judging the relation between described grate-layer material thickness and setting value, and；
First control unit, is less than valve maximum opening for the poor absolute value when the hearth layer for sintering thickness and setting value
The 1% of correspondence flow, then control shop fixtures bin blanking valve of electric valve aperture constant；
Second control unit, for being more than setting value and the hearth layer for sintering thickness with setting when the hearth layer for sintering thickness
The poor absolute value of definite value is more than the 1% of valve maximum opening correspondence flow, then controls shop fixtures bin blanking valve of electric valve to open
Degree is turned down；
3rd control unit, for being less than setting value and the hearth layer for sintering thickness with setting when the hearth layer for sintering thickness
The poor absolute value of definite value is more than the 1% of valve maximum opening correspondence flow, then controls shop fixtures bin blanking valve of electric valve to open
Degree is tuned up.
14. a kind of hearth layer for sintering layer thickness control device according to claim 13, it is characterised in that the second described control
Unit processed, including：First coarse adjustment unit and the first fine-adjusting unit；
First coarse adjustment unit, if the poor absolute value for the hearth layer for sintering thickness and setting value is opened more than valve maximum
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is turned down according to the amplitude of accommodation when spending the 5% of correspondence flow；
First fine-adjusting unit, if the poor absolute value for the hearth layer for sintering thickness and setting value, according to the amplitude of accommodation
Turned down for 1% control shop fixtures bin blanking valve of electric valve aperture.
15. a kind of hearth layer for sintering layer thickness control device according to claim 13, it is characterised in that the 3rd described control
Unit processed, including：Second coarse adjustment unit and the second fine-adjusting unit；
Second coarse adjustment unit, if the poor absolute value for the hearth layer for sintering thickness and setting value is opened more than valve maximum
It is that 5% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation when spending the 5% of correspondence flow；
Second fine-adjusting unit, if the poor absolute value for the hearth layer for sintering thickness and setting value is opened less than valve maximum
It is that 1% control shop fixtures bin blanking valve of electric valve aperture is tuned up according to the amplitude of accommodation when spending the 5% of correspondence flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545134.1A CN104316129B (en) | 2014-10-15 | 2014-10-15 | A kind of hearth layer for sintering consumption and thickness flexible measurement method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410545134.1A CN104316129B (en) | 2014-10-15 | 2014-10-15 | A kind of hearth layer for sintering consumption and thickness flexible measurement method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104316129A CN104316129A (en) | 2015-01-28 |
| CN104316129B true CN104316129B (en) | 2017-08-25 |
Family
ID=52371392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410545134.1A Active CN104316129B (en) | 2014-10-15 | 2014-10-15 | A kind of hearth layer for sintering consumption and thickness flexible measurement method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104316129B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106940176B (en) * | 2016-01-04 | 2019-03-01 | 中冶长天国际工程有限责任公司 | A kind of thickness of feed layer detection device and method |
| CN107167103B (en) * | 2017-06-26 | 2019-06-14 | 东莞理工学院 | A kind of pitch coated weight real-time monitoring system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485082A (en) * | 1990-04-11 | 1996-01-16 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Method of calibrating a thickness measuring device and device for measuring or monitoring the thickness of layers, tapes, foils, and the like |
| CN201016567Y (en) * | 2007-02-13 | 2008-02-06 | 中冶长天国际工程有限责任公司 | Swinging hopper for sintering machine bottom material spreading |
| CN101441445A (en) * | 2008-09-18 | 2009-05-27 | 中冶长天国际工程有限责任公司 | Sintering material balance method and system |
| CN101560599A (en) * | 2009-04-17 | 2009-10-21 | 中冶长天国际工程有限责任公司 | Thickness control method and control system of mixed material layer |
| CN101907867A (en) * | 2010-08-25 | 2010-12-08 | 中南大学 | Self-tuning expert control method of burning trough point parameter based on working condition recognition |
-
2014
- 2014-10-15 CN CN201410545134.1A patent/CN104316129B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5485082A (en) * | 1990-04-11 | 1996-01-16 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Method of calibrating a thickness measuring device and device for measuring or monitoring the thickness of layers, tapes, foils, and the like |
| CN201016567Y (en) * | 2007-02-13 | 2008-02-06 | 中冶长天国际工程有限责任公司 | Swinging hopper for sintering machine bottom material spreading |
| CN101441445A (en) * | 2008-09-18 | 2009-05-27 | 中冶长天国际工程有限责任公司 | Sintering material balance method and system |
| CN101560599A (en) * | 2009-04-17 | 2009-10-21 | 中冶长天国际工程有限责任公司 | Thickness control method and control system of mixed material layer |
| CN101907867A (en) * | 2010-08-25 | 2010-12-08 | 中南大学 | Self-tuning expert control method of burning trough point parameter based on working condition recognition |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104316129A (en) | 2015-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2573844C2 (en) | Automated system for controlling process of roasting iron-ore green pellets on moving grate | |
| CN103822223B (en) | Unit pulverized-coal system realizes control system and the method thereof of coal dust uniform distribution | |
| CN103079707B (en) | electrostatic separation control system | |
| CN101441443B (en) | Data processing method and device of sintering control parameter | |
| CN101963456B (en) | Control method of thorough-roasting point in roasting process of material and control system | |
| CN103939939B (en) | Pulverized-coal fired boiler digital combustion control and optimization method and system | |
| CN105039686B (en) | Sintering secondary automatic proportioning control system capable of realizing production cost measurement and control | |
| CN104019662B (en) | Rotary kiln control system | |
| CN109174321A (en) | Coal pulverizer automatic regulating system and coal pulverizer Automatic adjustment method | |
| CN107941010B (en) | A kind of sintering end point position control method and system | |
| CN104316129B (en) | A kind of hearth layer for sintering consumption and thickness flexible measurement method and device | |
| CN102022915A (en) | Power control method and power control system for sintering machine | |
| CN110533082B (en) | Sintering mixed water adding control method based on dual-model collaborative prediction | |
| RU2647411C2 (en) | Method and system for the frequency change control system of the main exhaust fan in the sintering system | |
| CN102914499B (en) | Method and device for detecting moisture in mixed material during sintering process | |
| CN112986491A (en) | Mixture water detection value correction method based on feedback adaptive prediction model | |
| CN103032361A (en) | Control method, device and system for dust removal fan | |
| CN111443597B (en) | Device and method for controlling granularity of vertical mill mineral powder | |
| CN103499101B (en) | A kind of temperature of hearth of ternary ignition furnace control method and device | |
| CN101560599B (en) | Thickness control method and control system of mixed material layer | |
| CN104328276B (en) | The control method of solid fuel, Apparatus and system in a kind of sintering process | |
| CN103017533B (en) | Method and system for controlling air quantity of main draft fan of sintering machine | |
| CN1680945B (en) | Method for proportioning ores for beneficiation | |
| CN104302788B (en) | To the method for blast furnace charging feedstock | |
| CN102103370A (en) | Slot and level control method of sintering mixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |