CN107036440A - A kind of rotary kiln power-saving control method and device - Google Patents
A kind of rotary kiln power-saving control method and device Download PDFInfo
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- CN107036440A CN107036440A CN201610076997.8A CN201610076997A CN107036440A CN 107036440 A CN107036440 A CN 107036440A CN 201610076997 A CN201610076997 A CN 201610076997A CN 107036440 A CN107036440 A CN 107036440A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
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Abstract
The embodiments of the invention provide a kind of rotary kiln power-saving control method and device, wherein method includes：Obtain this weight of rotary kiln G1；Obtain the real-time quality of material G in the rotary kilnm；According to described this weight of rotary kiln and the quality of material, rotary kiln gross mass G is obtained0；Being obtained according to the rotary kiln gross mass overcomes bearing friction to consume power N2；Obtain the effective power N for turning over materials1；According to N1、N2, obtain rotary kiln main transmission operating consumption power P；According to the power output of P controlled motors.The present invention according to the currently processed amount of rotary kiln number, the power required for rotary kiln motor is calculated by way of hard measurement, then the power output of rotary kiln motor is adjusted by feedback control, by Power Control in appropriate scope, avoid the waste of electric energy, rotary kiln power consumption is reduced, the saving energy, optimization production is reached, reduces the purpose of cost.
Description
Technical field
The present invention relates to metallurgical technology field, more particularly to a kind of rotary kiln power-saving control method and device.
Background technology
Rotary kiln is a kind of high temperature kiln that can continuously rotate, and is the Thermal Equipment that material is dried and is calcined, extensively
Technological process applied to industries such as nonferrous smelting, Ferrous Metallurgy, chemical industry, cement, aluminum oxide, building materials, refractory materials.
After material enters rotary kiln, rotary kiln is sintered by itself rotation and high-temperature roasting to material.In sintering process,
Electric opportunity driven conveyer belt transports material to the other end from one end of rotary kiln, so as to consume certain electric energy.
Inventor has found during the present invention is realized, conventionally, as lack effective power consumption control method,
And rotary kiln running parameter one is set seldom change, so often taking the strategy for deliberately increasing design capacity (such as to make electricity
Machine power output is sufficiently large), to ensure that system can stable operation under different operating modes (such as mass flow fluctuation).
But this rough mode may result in only part electric energy is used effectively, the waste of electric energy is caused, life is added
Cost is produced, is also unfavorable for energy-conserving and environment-protective.
The content of the invention
To overcome problems of the prior art, the present invention provides a kind of rotary kiln power-saving control method and device, to reduce
The waste of electric energy.
First aspect according to embodiments of the present invention includes there is provided a kind of rotary kiln power-saving control method, methods described：
Obtain this weight of rotary kiln G1；
Obtain the real-time quality of material G in the rotary kilnm；
According to described this weight of rotary kiln and the quality of material, rotary kiln gross mass G is obtained0；
Being obtained according to the rotary kiln gross mass overcomes bearing friction to consume power N2；
Obtain the effective power N for turning over materials1；
According to N1、N2, obtain rotary kiln main transmission operating consumption power P；
According to the power output of P controlled motors.
Optionally, this weight of rotary kiln G1Including：
Refractory quality GIt is resistance to, barrel device quality GCylinder, gear wheel suspended portion quality GIt is outstanding。
Optionally, the real-time quality of material G in the rotary kiln is obtainedm, including：
Obtain material residence time τ in rotary kilnm；
Mass flow M is measured in real time；
According to
Obtain Gm。
Optionally, material residence time τ in rotary kiln is obtainedm, including：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain rotary kiln declination angle；
Obtain repose angle of material θ；
According to
Obtain τm。
Optionally, the effective power N for turning over materials is obtained1, including：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain material proportion r1；
Obtain repose angle of material θ；
Obtain material correspondence central angle β；
Obtain experiential modification COEFFICIENT K1；
According to
N1=K1×60×nDi 3Lr1sinθsin3β
Obtain N1。
Optionally, being obtained according to the rotary kiln gross mass overcomes bearing friction to consume power N2, including：
Obtain rotary kiln rotating speed n；
Obtain bearing of conveyor idler coefficient of friction f3；
Obtain rolling ring diameter Dr；
Obtain support roller diameter Dt；
Obtain supporting-roller shaft bearing bore diameter d；
Obtain experiential modification COEFFICIENT K2；
According to
Obtain N2。
Optionally, methods described also includes：
The power consumption of rotary kiln motor in preset time period is obtained according to P；
The power consumption is stored, is referred to empirically data for rotary kiln choice of electrical machine.
Second aspect according to embodiments of the present invention includes there is provided a kind of rotary kiln electricity-saving control device, described device：
Rotary kiln gross mass acquisition module, for obtaining this weight of rotary kiln G1, obtain the real-time material in the rotary kiln
Quality Gm, according to described this weight of rotary kiln and the quality of material, obtain rotary kiln gross mass G0；
First power acquisition module, for obtaining the effective power N for turning over materials1；
Second power acquisition module, overcomes bearing friction to consume power N for being obtained according to the rotary kiln gross mass2；
Power control module, for according to N1、N2, rotary kiln main transmission operating consumption power P is obtained, electricity is controlled according to P
The power output of machine.
Optionally, this weight of rotary kiln G1Including：
Refractory quality GIt is resistance to, barrel device quality GCylinder, gear wheel suspended portion quality GIt is outstanding。
Optionally, rotary kiln gross mass acquisition module is obtaining the real-time quality of material G in the rotary kilnmWhen, it is used for：
Obtain material residence time τ in rotary kilnm；
Mass flow M is measured in real time；
According to
Obtain Gm。
Optionally, material residence time τ in rotary kiln is obtainedm, including：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain rotary kiln declination angle；
Obtain repose angle of material θ；
According to
Obtain τm。
Optionally, the first power acquisition module is used for：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain material proportion r1；
Obtain repose angle of material θ；
Obtain material correspondence central angle β；
Obtain experiential modification COEFFICIENT K1；
According to
N1=K1×60×nDi 3Lr1sinθsin3β
Obtain N1。
Optionally, the second power acquisition module is used for：
Obtain rotary kiln rotating speed n；
Obtain bearing of conveyor idler coefficient of friction f3；
Obtain rolling ring diameter Dr；
Obtain support roller diameter Dt；
Obtain supporting-roller shaft bearing bore diameter d；
Obtain experiential modification COEFFICIENT K2；
According to
Obtain N2。
Optionally.Described device also includes：
Data Post module, the power consumption for obtaining rotary kiln motor in preset time period according to P, and, store institute
Power consumption is stated, is referred to empirically data for rotary kiln choice of electrical machine.
The technical scheme that embodiments of the invention are provided can include the following benefits：
In the prior art, it is all to count afterwards that the power consumption of rotary kiln, which is calculated, it is impossible to according to on-site actual situations (as in real time
Mass flow etc.) rotary kiln power of motor is adjusted, cause a large amount of wastes of consuming electric power.It is of the invention then according to rotary kiln
The number of currently processed amount, the power required for rotary kiln motor is calculated by way of hard measurement, then passes through feedback control
Power output to rotary kiln motor is adjusted, by Power Control in appropriate scope, it is to avoid the waste of electric energy, reduction
Rotary kiln power consumption, reaches the saving energy, optimization production, reduces the purpose of cost.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, it can not limit
The system present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows and meets embodiments of the invention,
And be used to explain principle of the invention together with specification.
Fig. 1 is a kind of flow chart of rotary kiln power-saving control method according to an exemplary embodiment；
Fig. 2 is the equipment schematic diagram of Grate-kiln Oxidized Pellet technique；
Fig. 3 is a kind of flow chart of rotary kiln power-saving control method according to an exemplary embodiment；
Fig. 4 is a kind of schematic diagram of rotary kiln electricity-saving control device according to an exemplary embodiment；
Fig. 5 is a kind of schematic diagram of rotary kiln electricity-saving control device according to an exemplary embodiment.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to accompanying drawing
When, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.In following exemplary embodiment
Described embodiment does not represent all embodiments consistent with the present invention.On the contrary, they are weighed with such as appended
The example of the consistent apparatus and method of some aspects be described in detail in sharp claim, the present invention.
Fig. 1 is a kind of flow chart of rotary kiln power-saving control method according to an exemplary embodiment.It is used as the example party
Method is used for the process that grate kiln method produces iron ore acid pellet, reference can be made to shown in Fig. 2, Fig. 2 combs for chain
The equipment schematic diagram of machine-rotary kiln oxide pelletizing process, material from left to right successively can by drying grate 201, rotary kiln 202,
Central cooler 203.
Shown in Figure 1, this method may include steps of：
Step S101, obtains this weight of rotary kiln G1。
For example, this weight of rotary kiln G1Including：
Refractory quality GIt is resistance to, barrel device quality GCylinder, gear wheel suspended portion quality GIt is outstanding.Mass unit all can be t.
And refractory quality GIt is resistance toIt can calculate in the following way：
Wherein D is rotary kiln external diameter, and Di is rotary kiln internal diameter, and L is rotary kiln length, r2It is (single for fire proofed wood stockpile density
Position can be every cubic metre of ton).
It should be noted that quality and weight is often used with fact in this area, such as G1Etc. parameter, also can in fact
Take unit of weight, now those skilled in the art according to circumstances carry out being multiplied by g or divided by g processing.
Step S102 is obtained, the real-time quality of material G in the rotary kiln is obtainedm。
Mass flow into rotary kiln can typically be fluctuated, so the quality of material in rotary kiln is also in change.Because
Although mass flow can be set to some fixed numbers (unit t/h) when blanking, burden balance are all fluctuations,
Every point is all the fixed numbers when can not possibly be per, though for example Configuration Values are 100t/h, 15:It is probably 95t/h when 10 points,
15:It is probably then 102t/h when 20, fluctuation is presented.Can also be influenceed when blanking by equipment blanking groove itself and
The influence of the granularity of material etc., resistance in itself is also different, produces fluctuation.
Step S103 is obtained, according to described this weight of rotary kiln and the quality of material, rotary kiln gross mass G is obtained0。
Rotary kiln gross mass G0This weight of=rotary kiln G1+ quality of material Gm
=GIt is resistance to+GCylinder+GIt is outstanding+Gm
Step S104 is obtained, is obtained according to the rotary kiln gross mass and overcomes bearing friction to consume power N2。
N2Generally with rotary kiln gross mass G0It is closely related, G0Bigger consumed N2Also it is bigger.
Step S105 is obtained, the effective power N for turning over materials is obtained1。
Step S106 is obtained, according to N1、N2, obtain rotary kiln main transmission operating consumption power P.
For example
Wherein η is motor system efficiency.
Step S107, according to the power output of P controlled motors.
Get after rotary kiln main transmission operating consumption power P, also just there is control foundation during controlled motor power output,
The setting of no longer blindness is high-power, so as to avoid the waste of power.
Calculate rotary kiln main transmission operating consumption power, it is important to enter the calculating of material gross mass in rotary kiln, the present invention
In can use material tracking method, in real time calculate rotary kiln in quality of material.In the present embodiment or some other realities of the invention
Apply in example, obtain the real-time quality of material G in the rotary kilnm, including：
Obtain material residence time τ in rotary kilnm；
Measurement mass flow M, for example, can in real time be measured, unit is t/s by belt conveyer scale in real time；
According to
Obtain Gm。
Wherein obtain material residence time τ in rotary kilnm, including：
Rotary kiln rotating speed n is obtained, unit can be r/min (rpm)；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain rotary kiln declination angle；
Repose angle of material θ is obtained, bulk cargo can keep the maximum angle of natural stability state (unilateral to horizontal plane when stacking
Angle) can be described as " angle of repose ", material can be allowed freely to fall, form material cone, the side of circular cone and horizontal plane
Angle is angle of repose, typically only needs to laboratory measurement once；
According to
Obtain τm.In the formula long measure, angular unit can be respectively m and °.
Different from N2, the effective power N for turning over materials1Comparatively not fluctuated by mass flow is influenceed.In this implementation
In example or some other embodiments of the invention, the effective power N for turning over materials is obtained1, including：
Rotary kiln rotating speed n is obtained, unit can be r/min；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain material proportion r1, unit can be t.g/m3, wherein t is ton, and g is acceleration of gravity, in addition in certain situation
Under, the unit of proportion may also habitually be written as t/m3, now for the dimension of emergent power, can in formula multiplied by with
g；
Obtain repose angle of material θ；
Material correspondence central angle β is obtained, i.e., when material is filled in rotary kiln, from rotary kiln cross section, material is formed
The fan-shaped angle for the center of circle, production is stable, filling rate it is certain in the case of, this central angle is generally constant, measurement
Once；
Obtain experiential modification COEFFICIENT K1, for example can be using value as 0.0856；
According to
N1=K1×60×nDi 3Lr1sinθsin3β
Obtain N1.In the formula long measure, angular unit can be respectively m and °.
In the present embodiment or some other embodiments of the invention, obtained according to the rotary kiln gross mass and overcome bearing friction institute
Consume power N2, including：
Rotary kiln rotating speed n is obtained, such as range of speeds can be 0.04~1.41r/min；
Obtain bearing of conveyor idler coefficient of friction f3；
Obtain rolling ring diameter Dr, rolling ring is enclosed on cylinder of rotary kiln then property ring, by rolling ring by the weight of whole rotating part
Amount passes to support roller, and the total weight of rotating part is carry by support roller and supporting-roller shaft；
Obtain support roller diameter Dt；
Obtain supporting-roller shaft bearing bore diameter d；
Obtain experiential modification COEFFICIENT K2, for example can be using value as 0.593；
According to
Obtain N2.In the formula long measure, angular unit can be respectively m and °.In addition, according to ability in the formula
The custom of field technique personnel, G0Using unit of weight, and if G0Use quality unit, then multiplied by with g, to be allowed to
Calculate to obtain power dimension.
In addition, shown in Figure 3, in the present embodiment or some other embodiments of the invention, methods described can also include：
Step S108, the power consumption of rotary kiln motor in preset time period is obtained according to P.
Because rotary kiln main transmission operating consumption power P is fluctuated by mass flow and influenceed, so P is one with time t
The amount for changing and changing, therefore the electricity that rotary kiln consumption is consumed within a period of time can complete to calculate by integrated form,
Namely by the time integral to power, power consumption can be calculated, equation below is referred to：
Step S109, stores the power consumption, is referred to empirically data for rotary kiln choice of electrical machine.
The motor power consumption data under different material flow so can be obtained by accumulation, future is rotary kiln choice of electrical machine
When just refer to these data, to select suitable motor, both can ensure that normal production, avoid again waste, save electric energy.
It also should be noted that, the unit of each Parameters in Formula of the invention may be not unique, and the unit of such as heat can
It can also be KJ to think J, and the unit of quality can be that t can also be kg, and Speed unit can be r/min (rev/min)
Can also be r/s (revolutions per second), so these formula given above may also not only have a kind of form, people in the art
Member can for example be multiplied by 1000 t is scaled into kg, divided by 60 according to actual conditions to entering line translation in the above formula
So that r/min is scaled into r/s, g is multiplied by so that mass conversion, as weight, etc., to this present embodiment and to be not limited.
Following is apparatus of the present invention embodiment, can be used for performing the inventive method embodiment.For apparatus of the present invention embodiment
In the details that does not disclose, refer to the inventive method embodiment.
Fig. 4 is a kind of schematic diagram of rotary kiln electricity-saving control device according to an exemplary embodiment.Described device can be with
Including：
Rotary kiln gross mass acquisition module 401, for obtaining this weight of rotary kiln G1, obtain real-time in the rotary kiln
Quality of material Gm, according to described this weight of rotary kiln and the quality of material, obtain rotary kiln gross mass G0；
First power acquisition module 402, for obtaining the effective power N for turning over materials1；
Second power acquisition module 403, overcomes bearing friction to consume power N for being obtained according to the rotary kiln gross mass2；
Power control module 404, for according to N1、N2, rotary kiln main transmission operating consumption power P is obtained, is controlled according to P
The power output of motor processed.
In the present embodiment or some other embodiments of the invention, this weight of rotary kiln G1Including：
Refractory quality GIt is resistance to, barrel device quality GCylinder, gear wheel suspended portion quality GIt is outstanding。
In the present embodiment or some other embodiments of the invention, rotary kiln gross mass acquisition module is being obtained in the rotary kiln
Real-time quality of material GmWhen, it is used for：
Obtain material residence time τ in rotary kilnm；
Mass flow M is measured in real time；
According to
Obtain Gm。
In the present embodiment or some other embodiments of the invention, material residence time τ in rotary kiln is obtainedm, including：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain rotary kiln declination angle；
Obtain repose angle of material θ；
According to
Obtain τm。
In the present embodiment or some other embodiments of the invention, the first power acquisition module is used for：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain material proportion r1；
Obtain repose angle of material θ；
Obtain material correspondence central angle β；
Obtain experiential modification COEFFICIENT K1；
According to
N1=K1×60×nDi 3Lr1sinθsin3β
Obtain N1。
In the present embodiment or some other embodiments of the invention, the second power acquisition module is used for：
Obtain rotary kiln rotating speed n；
Obtain bearing of conveyor idler coefficient of friction f3；
Obtain rolling ring diameter Dr；
Obtain support roller diameter Dt；
Obtain supporting-roller shaft bearing bore diameter d；
Obtain experiential modification COEFFICIENT K2；
According to
Obtain N2。
Referring also to shown in Fig. 5, in the present embodiment or some other embodiments of the invention, described device can also include：
Data Post module 405, the power consumption for obtaining rotary kiln motor in preset time period according to P, and, storage
The power consumption, is referred to empirically data for rotary kiln choice of electrical machine.
On the device in above-described embodiment, wherein modules perform the concrete mode of operation in the reality about this method
Apply in example and be described in detail, explanation will be not set forth in detail herein.
Those skilled in the art will readily occur to other realities of the present invention after considering specification and putting into practice invention disclosed herein
Apply scheme.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Adaptations follow the general principle of the present invention and including the undocumented common knowledge or used in the art of the present invention
Use technological means.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by appended right
It is required that pointing out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and can
To carry out various modifications and changes without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (14)
1. a kind of rotary kiln power-saving control method, it is characterised in that methods described includes：
Obtain this weight of rotary kiln G1；
Obtain the real-time quality of material G in the rotary kilnm；
According to described this weight of rotary kiln and the quality of material, rotary kiln gross mass G is obtained0；
Being obtained according to the rotary kiln gross mass overcomes bearing friction to consume power N2；
Obtain the effective power N for turning over materials1；
According to N1、N2, obtain rotary kiln main transmission operating consumption power P；
According to the power output of P controlled motors.
2. according to the method described in claim 1, it is characterised in that this weight of rotary kiln G1Including：
Refractory quality GIt is resistance to, barrel device quality GCylinder, gear wheel suspended portion quality GIt is outstanding。
3. according to the method described in claim 1, it is characterised in that obtain the real-time quality of material G in the rotary kilnm,
Including：
Obtain material residence time τ in rotary kilnm；
Mass flow M is measured in real time；
According to
Obtain Gm。
4. method according to claim 3, it is characterised in that obtain material residence time τ in rotary kilnm, bag
Include：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain rotary kiln declination angle；
Obtain repose angle of material θ；
According to
Obtain τm。
5. according to the method described in claim 1, it is characterised in that obtain the effective power N for turning over materials1, including：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain material proportion r1；
Obtain repose angle of material θ；
Obtain material correspondence central angle β；
Obtain experiential modification COEFFICIENT K1；
According to
N1=K1×60×nDi 3Lr1sinθsin3β
Obtain N1。
6. according to the method described in claim 1, it is characterised in that obtained according to the rotary kiln gross mass and overcome bearing to rub
Wiping consumes power N2, including：
Obtain rotary kiln rotating speed n；
Obtain bearing of conveyor idler coefficient of friction f3；
Obtain rolling ring diameter Dr；
Obtain support roller diameter Dt；
Obtain supporting-roller shaft bearing bore diameter d；
Obtain experiential modification COEFFICIENT K2；
According to
Obtain N2。
7. according to the method described in claim 1, it is characterised in that methods described also includes：
The power consumption of rotary kiln motor in preset time period is obtained according to P；
The power consumption is stored, is referred to empirically data for rotary kiln choice of electrical machine.
8. a kind of rotary kiln electricity-saving control device, it is characterised in that described device includes：
Rotary kiln gross mass acquisition module, for obtaining this weight of rotary kiln G1, obtain the real-time material in the rotary kiln
Quality Gm, according to described this weight of rotary kiln and the quality of material, obtain rotary kiln gross mass G0；
First power acquisition module, for obtaining the effective power N for turning over materials1；
Second power acquisition module, overcomes bearing friction to consume power N for being obtained according to the rotary kiln gross mass2；
Power control module, for according to N1、N2, rotary kiln main transmission operating consumption power P is obtained, electricity is controlled according to P
The power output of machine.
9. device according to claim 8, it is characterised in that this weight of rotary kiln G1Including：
Refractory quality GIt is resistance to, barrel device quality GCylinder, gear wheel suspended portion quality GIt is outstanding。
10. device according to claim 8, it is characterised in that rotary kiln gross mass acquisition module is obtaining described return
Real-time quality of material G in rotary kilnmWhen, it is used for：
Obtain material residence time τ in rotary kilnm；
Mass flow M is measured in real time；
According to
Obtain Gm。
11. device according to claim 10, it is characterised in that obtain material residence time τ in rotary kilnm,
Including：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain rotary kiln declination angle；
Obtain repose angle of material θ；
According to
Obtain τm。
12. device according to claim 8, it is characterised in that the first power acquisition module is used for：
Obtain rotary kiln rotating speed n；
Obtain rotary kiln internal diameter Di；
Obtain rotary kiln length L；
Obtain material proportion r1；
Obtain repose angle of material θ；
Obtain material correspondence central angle β；
Obtain experiential modification COEFFICIENT K1；
According to
N1=K1×60×nDi 3Lr1sinθsin3β
Obtain N1。
13. device according to claim 8, it is characterised in that the second power acquisition module is used for：
Obtain rotary kiln rotating speed n；
Obtain bearing of conveyor idler coefficient of friction f3；
Obtain rolling ring diameter Dr；
Obtain support roller diameter Dt；
Obtain supporting-roller shaft bearing bore diameter d；
Obtain experiential modification COEFFICIENT K2；
According to
Obtain N2。
14. device according to claim 8, it is characterised in that described device also includes：
Data Post module, the power consumption for obtaining rotary kiln motor in preset time period according to P, and, store institute
Power consumption is stated, is referred to empirically data for rotary kiln choice of electrical machine.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953877A (en) * | 2018-09-27 | 2020-04-03 | 中铝山东工程技术有限公司 | Method and device for calculating power of rotary kiln |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110953877B (en) * | 2018-09-27 | 2021-12-10 | 中铝山东工程技术有限公司 | Method and device for calculating power of rotary kiln |
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