CN109554992A - A kind of cold burden storehouse Automatic adjustment method - Google Patents
A kind of cold burden storehouse Automatic adjustment method Download PDFInfo
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- CN109554992A CN109554992A CN201811339129.XA CN201811339129A CN109554992A CN 109554992 A CN109554992 A CN 109554992A CN 201811339129 A CN201811339129 A CN 201811339129A CN 109554992 A CN109554992 A CN 109554992A
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- storehouse
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1054—Preparing mixtures of which at least part of the solid ingredients has previously been deposited on the surface, excluding penetrating or surface dressing, e.g. in situ mixing, mixing involving lifting of spread or windrowed aggregate
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
- E01C19/1068—Supplying or proportioning the ingredients
- E01C19/1072—Supplying or proportioning the ingredients the solid ingredients
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Abstract
A kind of cold burden storehouse Automatic adjustment method, comprising the following steps: one, using weighing method each cold burden storehouse is demarcated；Two, the calibration of cold burden storehouse specification；Three, cold burden storehouse original frequency is given；Four, the continous way level-sensing device and its high-low-position of hot aggregate bin are demarcated；Five, material position variation is adjusted；Six, the high low adjustment of material position.The present invention takes into account the substandard factor of cold burden in cold burden storehouse, go out cold burden formula by target recipe calculation, using the relationship of total output and cold burden formula, determine cold burden storehouse frequency when just production, cold burden formula is finally automatically adjusted by the variation of hot aggregate bin position in storehouse and hot aggregate bin position in storehouse height again, solves the problems, such as to cause cold burden storehouse effective supply amount and hot aggregate bin demand deviation occur because of factor existing for cold burden storehouse not specification material.
Description
Technical field
The present invention relates to asphalt production technical field, especially a kind of cold burden storehouse Automatic adjustment method.
Background technique
The aggregate feeding system of asphalt mixing plant, referring to Fig.1 1, mainly by several cold burden storehouses 10, gather materials skin
Band 20, feeding belt 30, heating, drying equipment 40, elevator 50, hot aggregate bin 60 and aggregate measuring claim 70 compositions, wherein if
It is installed with a variety of different cold burdens respectively in dry cold burden storehouse 10.Currently, to the cold burden uninterrupted with aggregate feeding system
It adjusts, mainly by adjusting the frequency for driving the variable-frequency motor of cold burden warehouse discharging, is come with adjusting the revolving speed of variable-frequency motor
It realizes.If the revolving speed of variable-frequency motor reduces, the proportional reduction of the load in cold burden storehouse；If variable-frequency motor faster rotational speed,
The load proportional increase in cold burden storehouse.
However, due in cold burden storehouse the substandard situation of cold burden it is relatively more, often the material of big specification contains small dimension
Material, and mixed storehouse rate is no more than 50%, with the progress of production, cold burden storehouse effective supply amount and hot aggregate bin demand will appear deviation,
Hot aggregate bin is caused to occur lacking material or flash.Therefore, existing simple cold burden storehouse variable-frequency motor frequency and being formulated chain cannot
Meets the needs of actual production.
Summary of the invention
The present invention provides a kind of cold burden storehouse Automatic adjustment method, and main purpose is to overcome existing aggregate feeding system not
Stablize, as production carries out the defects of being easy to appear cold burden storehouse effective supply amount and excessive hot aggregate bin demand error.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of cold burden storehouse Automatic adjustment method, comprising the following steps:
One, each cold burden storehouse is demarcated using weighing method: when n cold burden storehouse is bought securities with all one's capital, makes each cold burden storehouse
Cold burden motor runs same time under several frequencies, and the cold burden transferred out is dried and is weighed, and after operation, obtains every
Formula yn=an*xn+bn of the yield y and frequency x in a cold burden storehouse；
Two, the calibration of cold burden storehouse specification: drying, screening and weighing are sampled to the cold burden in each cold burden storehouse, calculated
The percentage of various hot material specifications is contained in each cold burden storehouse, and the percentage that cold burden storehouse n contains hot material specification m is represented by CnHm；
Three, give cold burden storehouse original frequency: firstly, n hot aggregate bin formula of setting is respectively R1, R2 ... ... Rn, practical hot material is matched
Side is respectively r1, and r2 ... rn meets R1:R2: ... Rn=r1:r2 ... ..rn, and r1+r2+ ...+rn=100% are calculated
Practical hot material is formulated rn=Rn/ (R1+R2+ ... .+Rn)；Secondly, set cold burden storehouse total output as certain value be total, Ge Geleng
The frequency of feed bin is hz1, hz2 ... hzn；Again, increase a regulated quantity, it is automatic when material position fluctuates when for producing automatically
It adjusts, regulated quantity is respectively set as adj1, adj2 ... ... adjn, and regulated quantity is controlled in 1/n to -1/n；Finally, according to big specification
Material calculates frequency hzn={ [(total*rn)/CnHn] * [(rn of Coldn containing small dimension material and yn=an*xn+bn formula
+ adjn]/(1+adj1+adj2+ ...+adjn)-bn }/an, hzn-1={ { [(total*rn-1)-(hzn*an+bn) * CnHn-
1]/Cn-1Hn-1 } * [(rn-1+adjn-1)]/(1+adj1+adj2+ ...+adjn)-bn-1/an-1, and so on we
It can be concluded that the frequency Hz1 of cold burden storehouse Cold1={ [total*r1- (hzn*an+bn) * CnH1- (hzn-1*an-1+bn-1) *
Cn-1H1……-(hz2*a2+b2)*C2H1]*(r1+adj1)/( 1+adj1+adj2+……+adjn) –b1}/a1；
Four, the continous way level-sensing device of hot aggregate bin is demarcated: firstly, the temperature, humidity of hot material are in standard in hot aggregate bin
It is demarcated under state, the value of continous way level-sensing device feedback is recorded as AD value, is demarcated as 100% when showing high-order, records AD value
H, low level are demarcated as 0%, record AD value L；Secondly, determine a continous way level-sensing device automatic Calibration range e, high position calibration H value
Range is in H*(1+e) and H*(1-e) between, low level demarcate L value range in L*(1+e) and L* (1-e) between；Finally, practical
Production it is each a high position when, real-time AD and H is compared, if this AD is in H*(1+e) and H*(1-e) between, AD value at this time is true
Be set to H0, as high-order scale value, if AD value is greater than H*(1+e), just H*(1+e) value be determined as H0, marked as a high position
Angle value, if AD value be less than H*(1-e), just H*(1-e) value be determined as H0, as high-order scale value；It is real when each low level
When AD and L compare, if this AD is in L*(1+e) and L*(1-e) between, AD value at this time is just determined as L0, as low level mark
Angle value, if AD value be greater than L*(1+e), just L*(1+e) value be determined as L0, as low level scale value, if AD value is less than
L*(1-e), just L*(1-e) value be determined as L0, as low level scale value；
Five, material position variation is adjusted: hot aggregate bin unsnatches material, detection record material position A, by the material of the material position of this record and last registration
Position compares, and records deviation s, is made the difference by close material position twice and successively obtain s1=A1-A0, s2=A2-A1 ... ... sn=An-An-
1, it when material position difference sn, sn-1 > 2% twice in succession or sn-1+sn > 3%, then needs suitably to turn the adj in cold burden storehouse down, reduce
Position in storehouse；When material position difference sn, sn-1 < 2% twice in succession or sn-1+sn < 3%, then need for the adj in cold burden storehouse to be suitably turned up,
Increase position in storehouse；
Six, the high low adjustment of material position: when the discharge time of hot aggregate bin too long perhaps metered flow is too small or blocking rotary type material position is calculated as
When the percentage of low level or continous way level-sensing device is set lower than 25%, then illustrating that this hot aggregate bin lacks material is low level；When resistance is revolved
When the percentage that formula material position is calculated as a high position or continous way level-sensing device is set higher than 75%, then illustrate that this hot aggregate bin flash is height
Position；50% material position weight difference wk corresponding with current material position is calculated according to material position difference, and records and is produced when front lower cold burden storehouse is practical
Ya1 is measured, adj is then adjusted to -1/n or 1/n, records cold burden storehouse actual production yb1, theoretical reduction amount yc=yb1-ya1 at this time,
Adj1 is -1/n or 1/n duration to be set to tk=wk/yc*cycle, and after the tk time, adj is recalled to initial value.
Above-mentioned steps three, obtained hzn, hzn-1 ... ... hz1 are just defaulted as 50 if it is greater than 50, and anti-by 50hz
Optimum point of production sumn, sumn-1 ... sum1 of release, is just defaulted as 0 if it is less than 0.
Further, if in n cold burden storehouse the storehouse containing 50hz, illustrate that cold burden yield is unsatisfactory for production requirement or cold
Very whether specification, prompt are not used for according to sum value, as total output, reducing total output prevents flash or feed supplement full feed bin material
Sufficient yield；If the storehouse of 0hz is contained in n cold burden storehouse, the material for illustrating that this storehouse is contained in other storehouses is excessive, and flash is inevitable at this time,
User's cold burden storehouse material very not specification is prompted, will generate to overflow by this formula production and expect.
Further, when only existing the cold burden storehouse 50hz, actual production is less than theoretical yield total；It is cold when only existing 0hz
When feed bin, actual production is greater than theoretical yield total；It, need to be bent according to yield and frequency yn=anxn+bn when the two exists simultaneously
Line, recalculates practical cold burden yield sum, sum and total there are non-linear relation, the cold burden that sum is obtained as theoretical value
Actual value is not still total, it is necessary to carry out the big minor adjustment of burner flame；If without 50hz or 0hz there are storehouse, sum will
Equal to total, burner flame does not have to adjust.
Further, the hot aggregate bin is equipped with height level-sensing device and continous way level-sensing device, wherein the height level-sensing device is adopted
With blocking rotary type level-sensing device, have the function of that high-low-position is shown and real time correction continous way level-sensing device regulated value.
Further, e takes the value within positive and negative 10% in the step 4.
Further, in the step 5, the material of every kind of specification is from cold burden Codl1, Cold2 ... ..Coldn to hot material
The time of Hot1, Hot2 ... Hotn are t1, and t2, t3 ... tn, the production cycle of each disk is cycle, each disk production weight
Amount is P, calculates hot material yield values su=p/cycle at this time, each hot material holding capacity of bin is respectively weight1, weight2 ... ...
Weightn, the relationship between the capacity weight and material position A of hot aggregate bin are weight=f(A), it is right when material position difference differs s1
Answering aggregate weight difference is w1=weight1-weight2=f(A1)-f(A0), feed bin incrementss are w1/cycle.
Further, theoretical increased if the time that No. 1 hot aggregate bin is fed to hot material since cold burden material is t1 in total
Material is t1*w1/cycle, passes through weight=f(A) the anti-material position released after the t1 time, it is excessively high to extrapolate material position, and user is reminded to be
No feed supplement or flash, then adjust the value of the adj1 in Cold1, and record and work as front lower cold burden storehouse actual production ya1, then will
Adj1 is adjusted to -1/n, cold burden storehouse actual production yb1 is recorded at this time, when theoretical reduction amount yc1=yb1-ya1, adj1 are that -1/n continues
Between be set to tk=2t1*w1/yc*cycle, the value of adj1 is gradually tuned up after the tk time, as actual production yc1=ya1-w1/cycle
When, it is delayed after tn later, obtained curve is about theoretical value.
Further, the Dose times of hot aggregate bin are greater than R* cycle/p and then illustrate that this hot aggregate bin lacks in the step 6
Material.
Further, the metered flow of hot aggregate bin is to take weight ml1 respectively between time tl1 and tl2 in the step 6
And ml2, when (ml1-ml2)/(tl1-tl2) < p/cycle illustrates that this hot aggregate bin lacks material.
By the above-mentioned description to structure of the invention it is found that compared to the prior art, the invention has the following beneficial effects:
1, the present invention takes into account the substandard factor of cold burden in cold burden storehouse, goes out cold burden formula by target recipe calculation, adopts
With the relationship of total output and cold burden formula, determine cold burden storehouse frequency when just production, finally again by the variation of hot aggregate bin position in storehouse and
Hot aggregate bin position in storehouse just automatically adjusts cold burden formula.Therefore the present invention can solve to cause because of factor existing for cold burden storehouse not specification material
There is the problem of deviation in cold burden storehouse effective supply amount and hot aggregate bin demand.
2, the present invention avoids the moisture content bring error because of belt tension and material, keeps away simultaneously without weighing belt
The flame size that total output variation influences burner is exempted from.
Detailed description of the invention
Fig. 1 is the structural block diagram of cold burden storehouse of the present invention calibration.
Fig. 2 is the structural block diagram of cold burden storehouse of the present invention specification calibration.
Fig. 3 is the structural block diagram that cold burden storehouse of the present invention original frequency gives.
Fig. 4 is the structural block diagram of continous way level-sensing device of the present invention and its high positioning and demarcating.
Fig. 5 is the structural block diagram of material position of the present invention variation and high low adjustment.
Fig. 6 is the linear relationship chart of yield and frequency after the calibration of cold burden storehouse of the present invention.
Fig. 7 is the structural schematic diagram of hot aggregate bin of the present invention.
Fig. 8 is the curve relation figure of hot aggregate bin material position and time of the present invention.
Fig. 9 is that cold burden of the present invention is adjusted and hot material material position variation diagram.
Figure 10 is that adj of the present invention is adjusted and hot material material position variation diagram.
Figure 11 is the structural schematic diagram of aggregate feeding system.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings.In order to fully understand the present invention, it is described below and is permitted
More details, but to those skilled in the art, the present invention can also be realized without these details.For well known component, side
Method and process, are not described in detail below.
The present invention provides a kind of cold burden storehouse Automatic adjustment method.It is assumed that there are n hot aggregate bin, cold burden storehouse and hot aggregate bin quantity
Identical is also n, and hot aggregate bin is labeled as Hot1, Hot2 ... Hotn；Cold burden storehouse is labeled as Cold1, Cold2 ... Coldn, with heat
Feed bin specification compares one by one.
One, each cold burden storehouse is demarcated using weighing method.Referring to Fig.1, it when cold burden storehouse is bought securities with all one's capital, first passes through
Programmable controller controls the frequency converter of cold burden motor, runs the cold burden motor in each cold burden storehouse under several frequencies identical
Time, and the cold burden transferred out is dried and is weighed；It avoids causing mass deviation due to moisture content, influences the practical production in cold burden storehouse
Amount.Then by the cold burden electric machine frequency of each feed bin and drying after weight correspondence is input to host computer, can all obtain yield with
The respective value of frequency, such as Fig. 6.By programmable controller operation, the yield (y) in each cold burden storehouse and the formula of frequency (x) are obtained
Successively are as follows: y1=a1*x1+b1；y2=a2*x2+b2；……….yn=an*xn+bn.
Two, the calibration of cold burden storehouse specification.Referring to Fig. 2, drying is sampled to the cold burden in each cold burden storehouse, sieve,
Weighing, and host computer is inputted, there is programmable controller to calculate the percentage that various hot material specifications are contained in each cold burden storehouse.By
CnHm represents the percentage that cold burden storehouse n contains hot material specification m, such as C3H1 indicates the material containing Hot1 specification in Cold3.
Three, cold burden storehouse original frequency is given.Referring to Fig. 3, the formula of n hot aggregate bin is set as R1, R2 ... ... Rn；And
100%) .+Rn≤100% that meets RI+R2+ ... (when without miberal powder, and the formula that is obtained using bitumen aggregate ratio operation and is only, at this time
Calculate actual hot material recipe ratio r1, r2 ... .rn, that is, meet (R1:R2: ... Rn)=(r1:r2 ... ..rn) and r1+r2
+…+rn=100%；R1 is calculated according to the following formula, the value of r2 ... .rn: r1=R1/ (R1+R2+ ... .+Rn); r2=R2/
(R1+R2+….+Rn);……rn=Rn/(R1+R2+….+Rn)。
Wherein the gauge lattice of Cold1 to Coldn are gradually increased, the material of the only Hot1 specification of the material in Cold1, in Cold2
Material of the material containing Hot1 and Hot2 specification, and so on contain Hot1, the material of Hot2 ... ... .Hotn specification in Coldn.
It is total that cold burden storehouse total output, which is set, as certain value, and the frequency in each cold burden storehouse is hz1, hz2 ... hzn.Due to
Not specification material is contained in each cold burden storehouse, and there is also fluctuations, need to increase a regulated quantity, when material position when for producing automatically fluctuates
Automatic adjustment, regulated quantity is set as adj1；adj2;……adjn.Due to feed bin not specification limitation, and continous way material
Position meter is there is also material position error, and regulated quantity should not be too large at this time, and regulated quantity is controlled in 1/n to -1/n, if it is adjusted there are 1 storehouse
Section amount is positive and negative 1；There are 5 storehouses, regulated quantity is positive and negative 20%.
Since the material of big specification is containing the material of small dimension, so only Coldn contains the material of Hotn specification, therefore first operation
The yield of Hotn specification material calculates the frequency of Coldn further according to the formula of " yn=an*xn+bn " yield and frequency in turn.
Hzn=[(total*rn)/CnHn] * [(rn+adjn]/(1+adj1+adj2+ ...+adjn)-bn }/an, it obtains
Hzn be just defaulted as 50 if it is greater than 50；The optimum point of production sumn for Coldn is instead released again by 50hz.
Due to containing Hotn-1 specification material in Hotn.So the frequency of cold burden storehouse Coldn-1 is as shown in following formula:
hzn-1={{[(total*rn-1)-(hzn*an+bn)*CnHn-1]/Cn-1Hn-1}*[(rn-1+adjn-1)]/ (1+adj1+
Adj2+ ...+adjn)-bn-1 }/an-1, obtained hzn-1 is just defaulted as 50 if it is greater than 50；It is pushed away again by 50hz is counter
It is directed to the optimum point of production sumn-1 of Coldn-1 out, if sumn-1 is just defaulted as 0 less than 0.
And so on, it can be deduced that the frequency of cold burden storehouse Cold1, it is shown as the following formula: hz1={ [total*r1-
(hzn*an+bn)*CnH1-(hzn-1*an-1+bn-1)*Cn-1H1……-(hz2*a2+b2)*C2H1]*(r1+adj1)/( 1
+ adj1+adj2+ ...+adjn)-b1 }/a1, obtained hz1 is just defaulted as 50 if it is greater than 50；It is pushed away again by 50hz is counter
It is directed to the optimum point of production sum1 of Coldn out, if sum1 is just defaulted as 0 less than 0.
If the storehouse containing 50hz in n cold burden storehouse, illustrate that cold burden yield is unsatisfactory for production requirement or cold burden storehouse material very
Whether not specification can prompt user according to sum value, as total output, reducing total output prevents flash or feed supplement
Meet yield.If the storehouse of 0hz is contained in n cold burden storehouse, the material for illustrating that this storehouse is contained in other storehouses is excessive, and flash can not be kept away at this time
Exempt from, user's cold burden storehouse material very not specification can be prompted, will generate to overflow by this formula production and expect.
By the frequency that calculates above it is found that if there is 50hz or 0hz is there are storehouse, theoretical cold burden total output total with
Practical total output will generate error, and when only existing 50hz, general actual production is less than theoretical yield total；Only exist 0hz
When, general actual production is greater than theoretical yield total；When the two exists simultaneously, need to according to yield and frequency y=ax+b curve,
Recalculating practical cold burden yield sum, sum and total, there are non-linear relations, obtain at this time using sum as theoretical value cold
Expecting actual value still is not sum, must carry out the big minor adjustment of burner flame at this time.If without 50hz or 0hz there are storehouse,
Sum will be equal to total, and burner flame will not have to adjust.
Production at any time carries out hot aggregate bin will appear material position variation certainly.Referring to Fig. 7, hot aggregate bin 60 is equipped with continous way level-sensing device
61, high-order level-sensing device 62 and low level level-sensing device 63.High-order level-sensing device 62 and low level level-sensing device 63 are all made of blocking rotary type level-sensing device, tool
There is high-low-position to show and the function of real time correction continous way level-sensing device regulated value, while being also equipped with thermometer 64 in hot aggregate bin 60.
Four, the continous way level-sensing device of hot aggregate bin is demarcated.Referring to Fig. 4, demarcating continous way level-sensing device for the first time must make
With continuous hot material, temperature, humidity to hot material in hot aggregate bin, which are under standard state, is demarcated, the value note of level-sensing device feedback
Record is AD value, is demarcated as 100% when showing high-order, records AD value H, and low level is demarcated as 0%, records AD value L.Due to continous way material
Position meter is affected by temperature, humidity, and temperature and humidity when actual production can have faint variation, so it needs to be determined that one
A continous way level-sensing device automatic Calibration range e, e usually take the value within positive and negative 10%, due in actual production, continous way material position
It counts instant failure to happen occasionally, excessively adjusting level-sensing device, level-sensing device can be made more inaccurate.Therefore high-order calibration value range is in H*
(1+e) and H*(1-e) between, low level demarcate value range in L*(1+e) and L* (1-e) between.
When high-order every time, real-time AD and H is compared, if this AD is in H*(1+e) and H*(1-e) between, just AD at this time
Value is determined as H0, as high-order scale value；If AD value be greater than H*(1+e), just H*(1+e) value be determined as H0, as height
Position scale value；If AD value be less than H*(1-e), just H*(1-e) value be determined as H0, as high-order scale value.
When each low level, real-time AD and L is compared, if this AD is in L*(1+e) and L*(1-e) between, just AD at this time
Value is determined as L0, as low level scale value；If AD value be greater than L*(1+e), just L*(1+e) value be determined as L0, as low
Position scale value；If AD value be less than L*(1-e), just L*(1-e) value be determined as L0, as low level scale value.
Establish the high status of continous way level-sensing device, hot aggregate bin, hot aggregate bin discharge time, hot aggregate bin discharging flow and cold burden storehouse tune
The relationship of section amount adj1, adj2 ... ..adjn.
Since cold burden bin location is different and different size material is different in the time of roller, the material of every kind of specification from cold burden storehouse to
The time of hot aggregate bin is not also identical, from cold burden Codl1, Cold2 ... ..Coldn to hot material Hot1, the time of Hot2 ... Hotn
For t1, t2, t3 ... tn, the production cycle of each disk is cycle, and each disk production weight is P, calculates hot material yield at this time
Value su=p/cycle, each hot material holding capacity of bin are respectively weight1, weight2 ... ... weightn.
Five, hot aggregate bin material position variation is adjusted.Referring to Fig. 5, when production, whenever hot aggregate bin unsnatches material, detection records material position A,
This material position recorded is compared with the material position of last registration, deviation s is recorded, is made the difference by material position twice in succession and successively obtained:
S1=A1-A0, s2=A2-A1, s3=A3-A2, if s1 > 2% and s2 > 2% or s1+s2 > 3%, and so on, then needing will be cold
The sdj of feed bin is suitably turned down, as shown in Figure 8.
There are a kind of non-linear relations with material position by the capacity weight of hot aggregate bin, this relationship is related with hot material chamber structure, can
To find out its relationship, we set this relationship as weight=f(A), material position difference phase by weighing to the aggregate under specific material position
When poor s1, corresponding difference aggregate weight is w1=weght1-weigh2=f(A1)-f(A0), feed bin incrementss are w1/cycle, with
For No. 1 hot aggregate bin, be fed to from feed bin add expect that the hot aggregate bin time is t1 in total, increased material theoretical at this time be t1*
w1/cycle.Pass through weight=f(A), the anti-material position released after the t1 time.It is excessively high to extrapolate material position, reminds whether user mends
Material or flash.Start the value of the adj1 in adjusting Cold1 at this time, first record works as front lower cold burden storehouse actual production ya1, so
Afterwards by adj1 be adjusted to -1/n(if s1 be negative value if be adjusted to 1/n), at this time record cold burden storehouse actual production yb1, theoretical reduction amount
Yc1=yb1-ya1, adj1 are the -1/n duration to be set to tk=2t1*w1/yc*cycle, gradually tune up adj1's after the tk time
Value is delayed after t1, obtained curve is probably theoretical value later as actual production yc1=ya1-w1/cycle.Cold burden
Regulated value and hot material changing value are as shown in Figure 9.
The control errors that are adjusted according to continous way level-sensing device change rate above in every disk 1% or so, but with when
Between passage, 1% error still can add up after the time when one section reaches a very big value, at this time can by with
Lower three kinds of methods judge material position height and then the adj in each storehouse are adjusted.
Referring to Fig. 5, first is that being determined according to the Dose times of hot aggregate bin or metered flow, when Dose times are being greater than R*
Cycle/p, illustrate this storehouse lack material, be both that can also be determined with flow, take weight ml1 and ml2 respectively between time tl1 and tl2, when
(ml1-ml2)/(tl1-tl2) < p/cycle illustrates that this storehouse lacks material, as low level.
Second is that being judged according to blocking rotary type level-sensing device, a high position is full material, and low level is low level.
Third is that being set according to the percentage of continous way level-sensing device, if it is greater than 75%, it is defaulted as a high position, if it is less than
25% is defaulted as low level.Bring into operation is since also no stabilization not will do it detection for humidity, temperature in storehouse, when hot aggregate bin temperature is protected
This judgement is just carried out after holding 140 ° or more 15min.
Since the cumulative caused feed bin there are small variable is high-order or low level, adj should not be changed, it can be first according to material position
Difference calculates 50% material position weight difference wk corresponding with current material position.And record and work as front lower cold burden storehouse actual production ya1, then
Adj is adjusted to -1/n(and is adjusted to 1/n if low level), cold burden storehouse actual production yb1, theoretical reduction amount yc=yb1- are recorded at this time
Ya1, adj1 are the -1/n duration to be set to tk=wk/yc*cycle, after the tk time, adj are recalled to initial value, such as Figure 10 institute
Show.
The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, all to utilize this
Design makes a non-material change to the present invention, and should all belong to behavior that violates the scope of protection of the present invention.
Claims (10)
1. a kind of cold burden storehouse Automatic adjustment method, which comprises the following steps:
One, each cold burden storehouse is demarcated using weighing method: when n cold burden storehouse is bought securities with all one's capital, makes each cold burden storehouse
Cold burden motor runs same time under several frequencies, and the cold burden transferred out is dried and is weighed, and after operation, obtains every
Formula yn=an*xn+bn of the yield y and frequency x in a cold burden storehouse；
Two, the calibration of cold burden storehouse specification: drying, screening and weighing are sampled to the cold burden in each cold burden storehouse, calculated
The percentage of various hot material specifications is contained in each cold burden storehouse, and the percentage that cold burden storehouse n contains hot material specification m is represented by CnHm；
Three, give cold burden storehouse original frequency: firstly, n hot aggregate bin formula of setting is respectively R1, R2 ... ... Rn, practical hot material is matched
Side is respectively r1, and r2 ... rn meets R1:R2: ... Rn=r1:r2 ... ..rn, and r1+r2+ ...+rn=100% are calculated
Practical hot material is formulated rn=Rn/ (R1+R2+ ... .+Rn)；Secondly, set cold burden storehouse total output as certain value be total, Ge Geleng
The frequency of feed bin is hz1, hz2 ... hzn；Again, increase a regulated quantity, it is automatic when material position fluctuates when for producing automatically
It adjusts, regulated quantity is respectively set as adj1, adj2 ... ... adjn, and regulated quantity is controlled in 1/n to -1/n；Finally, according to big specification
Material calculates frequency hzn={ [(total*rn)/CnHn] * [(rn of Coldn containing small dimension material and yn=an*xn+bn formula
+ adjn]/(1+adj1+adj2+ ...+adjn)-bn }/an, hzn-1={ { [(total*rn-1)-(hzn*an+bn) * CnHn-
1]/Cn-1Hn-1 } * [(rn-1+adjn-1)]/(1+adj1+adj2+ ...+adjn)-bn-1/an-1, and so on we
It can be concluded that the frequency Hz1 of cold burden storehouse Cold1={ [total*r1- (hzn*an+bn) * CnH1- (hzn-1*an-1+bn-1) *
Cn-1H1……-(hz2*a2+b2)*C2H1]*(r1+adj1)/( 1+adj1+adj2+……+adjn) –b1}/a1；
Four, the continous way level-sensing device and its high-low-position of hot aggregate bin are demarcated: firstly, the temperature of hot material, wet in hot aggregate bin
Degree is demarcated under standard state, and the value of continous way level-sensing device feedback is recorded as AD value, is demarcated as when showing high-order
100%, AD value H is recorded, low level is demarcated as 0%, records AD value L；Secondly, determine a continous way level-sensing device automatic Calibration range e,
A high position calibration H value range in H*(1+e) and H*(1-e) between, low level demarcate L value range in L*(1+e) with L* (1-e) it
Between；Finally, actual production is when each high-order, real-time AD and H is compared, if this AD is in H*(1+e) and H*(1-e) between,
AD value at this time is determined as H0, as high-order scale value, if AD value is greater than H*(1+e), just H*(1+e) value be determined as
H0, as high-order scale value, if AD value is less than H*(1-e), just H*(1-e) value be determined as H0, as high-order scale value；
When each low level, real-time AD and L is compared, if this AD is in L*(1+e) and L*(1-e) between, just AD value at this time is determined as
L0, as low level scale value, if AD value is greater than L*(1+e), just L*(1+e) value be determined as L0, as low level scale value,
If AD value be less than L*(1-e), just L*(1-e) value be determined as L0, as low level scale value；
Five, material position variation is adjusted: hot aggregate bin unsnatches material, detection record material position A, by the material of the material position of this record and last registration
Position compares, and records deviation s, is made the difference by close material position twice and successively obtain s1=A1-A0, s2=A2-A1 ... ... sn=An-An-
1, it when material position difference sn, sn-1 > 2% twice in succession or sn-1+sn > 3%, then needs suitably to turn the adj in cold burden storehouse down, reduce
Position in storehouse；When material position difference sn, sn-1 < 2% twice in succession or sn-1+sn < 3%, then need for the adj in cold burden storehouse to be suitably turned up,
Increase position in storehouse；
Six, the high low adjustment of material position: when the discharge time of hot aggregate bin too long perhaps metered flow is too small or blocking rotary type material position is calculated as
When the percentage of low level or continous way level-sensing device is set lower than 25%, then illustrating that this hot aggregate bin lacks material is low level；When resistance is revolved
When the percentage that formula material position is calculated as a high position or continous way level-sensing device is set higher than 75%, then illustrate that this hot aggregate bin flash is height
Position；50% material position weight difference wk corresponding with current material position is calculated according to material position difference, and records and is produced when front lower cold burden storehouse is practical
Ya1 is measured, adj is then adjusted to -1/n or 1/n, records cold burden storehouse actual production yb1, theoretical reduction amount yc=yb1-ya1 at this time,
Adj1 is -1/n or 1/n duration to be set to tk=wk/yc*cycle, and after the tk time, adj is recalled to initial value.
2. a kind of cold burden storehouse as described in claim 1 Automatic adjustment method, it is characterised in that: the step 3 obtains
Hzn, hzn-1 ... ... hz1 are just defaulted as 50 if it is greater than 50, and pass through anti-optimum point of production sumn, the sumn- released of 50hz
1 ... sum1 is just defaulted as 0 if it is less than 0.
3. a kind of cold burden storehouse as claimed in claim 2 Automatic adjustment method, it is characterised in that: if contained in n cold burden storehouse
The storehouse of 50hz illustrates that cold burden yield is unsatisfactory for production requirement or cold burden storehouse expects that very whether specification, prompt are used for according to sum
For value as total output, reducing total output prevents flash or feed supplement from meeting yield；If the storehouse of 0hz, explanation are contained in n cold burden storehouse
The material that this storehouse is contained in other storehouses is excessive, and flash is inevitable at this time, prompts user's cold burden storehouse material very not specification, by this formula production
Material is overflowed by generating.
4. a kind of cold burden storehouse Automatic adjustment method as claimed in claim 2, it is characterised in that: when only existing 50hz cold burden storehouse
When, actual production is less than theoretical yield total；When only existing the cold burden storehouse 0hz, actual production is greater than theoretical yield total；Two
When person exists simultaneously, need to according to yield and frequency yn=anxn+bn curve, recalculate practical cold burden yield sum, sum with
There are non-linear relations by total, are not still total using the cold burden actual value that sum is obtained as theoretical value, it is necessary to carry out burner
Flame size is adjusted；If sum will be equal to total without 50hz or 0hz there are storehouse, burner flame does not have to adjust.
5. a kind of cold burden storehouse as described in claim 1 Automatic adjustment method, it is characterised in that: the hot aggregate bin is expected equipped with height
Position meter and continous way level-sensing device, wherein the height level-sensing device uses blocking rotary type level-sensing device, and there is high-low-position show and real-time school
To the function of continous way level-sensing device regulated value.
6. a kind of cold burden storehouse as described in claim 1 Automatic adjustment method, it is characterised in that: e takes positive and negative in the step 4
Value within 10%.
7. a kind of cold burden storehouse as described in claim 1 Automatic adjustment method, it is characterised in that: in the step 5, every kind of rule
The material of lattice is t1, t2, t3 ... from cold burden Codl1, the time of Cold2 ... ..Coldn to hot material Hot1, Hot2 ... Hotn
Tn, the production cycle of each disk are cycle, and each disk production weight is P, calculate hot material yield values su=p/cycle at this time,
Each hot material holding capacity of bin is respectively weight1, weight2 ... ... weightn, between the capacity weight and material position A of hot aggregate bin
Relationship be weight=f(A), when material position difference differs s1, corresponding aggregate weight difference is w1=weight1-weight2=f
(A1)-f(A0), feed bin incrementss are w1/cycle.
8. a kind of cold burden storehouse Automatic adjustment method as claimed in claim 7, it is characterised in that: if No. 1 hot aggregate bin is from cold burden material
The time for starting to be fed to hot material is t1 in total, then theoretical increased material is t1*w1/cycle, passes through weight=f(A) it counter pushes away
Material position after the t1 time out, it is excessively high to extrapolate material position, remind user whether feed supplement or flash, then adjust in Cold1
The value of adj1, and record and work as front lower cold burden storehouse actual production ya1, then adj1 is adjusted to -1/n, it is practical that cold burden storehouse is recorded at this time
Yield yb1, theoretical reduction amount yc1=yb1-ya1, adj1 are the -1/n duration to be set to tk=2t1*w1/yc*cycle, tk time
The value for gradually tuning up adj1 afterwards is delayed after tn, obtained curve is big later as actual production yc1=ya1-w1/cycle
Cause is theoretical value.
9. a kind of cold burden storehouse as claimed in claim 7 Automatic adjustment method, it is characterised in that: hot aggregate bin in the step 6
Dose times are greater than R* cycle/p and then illustrate that this hot aggregate bin lacks material.
10. a kind of cold burden storehouse as claimed in claim 7 Automatic adjustment method, it is characterised in that: hot aggregate bin in the step 6
Metered flow be to take weight ml1 and ml2 respectively between time tl1 and tl2, as (ml1-ml2)/(tl1-tl2) < p/cycle
Illustrate that this hot aggregate bin lacks material.
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