CN114219538A - Method and system for cement plant mill production and electricity consumption analysis - Google Patents
Method and system for cement plant mill production and electricity consumption analysis Download PDFInfo
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Abstract
The invention relates to a method for producing and analyzing electricity consumption of a cement plant mill, which comprises five steps of determining parameters, obtaining the parameters, calculating a production plan, calculating production time, matching the production time with peak-valley level electricity consumption time, implementing the production plan P and outputting an electricity consumption cost analysis result; the invention also relates to a system for cement plant mill production and power consumption analysis, which comprises a parameter setting module, a production data input module and a production data output module. The invention is used for cement plants, provides optimized production and power utilization analysis methods for cement enterprises by combining peak-to-valley electricity price, electricity consumption, production, sales, inventory and the like, and is applied to a computer software system, so that an optimal small-scale production plan can be established, the power utilization cost for production under different scenes is simulated in advance, and the purposes of minimizing the production cost of the enterprises and maximizing the profit of the enterprises are realized by comparing technical index prediction and economic index prediction.
Description
Technical Field
The invention relates to the technical field of informatization of production planning and power consumption analysis, in particular to a method and a system for production and power consumption analysis of a cement plant mill.
Background
The Chinese government establishes and announces a double-carbon target in the world, and starts to be executed vigorously, so that the high-energy-consumption industry is inevitable to continuously implement technical consumption reduction; as a cement enterprise, the cement enterprise is not only stressed on the production in a peak-shifting manner in winter and temporary stop of production in haze weather, but also is subjected to the task of implementing technical upgrading for achieving the peak target by carbon, and measures for coping with temporary electricity limitation of local governments are made; therefore, cement enterprises perform continuous production, make production plans and power consumption management and other work by improving production plans and power consumption cost analysis methods and performing informatization upgrading on the production plans and the power consumption cost analysis methods, and the method is a main measure for performing technical upgrading.
Disclosure of Invention
The invention provides a method and a system for production and power consumption analysis of a cement plant mill, aiming at solving the defects of the prior art and better and more clearly implementing continuous production, making production plan, power consumption management and other work.
The technical scheme of the invention is as follows:
in a first aspect, a method for cement plant mill production and power usage analysis, comprising the steps of:
s1, determining parameters: the method comprises technical index prediction and economic index prediction, wherein: the technical index is predicted to be the unit electricity consumption SPC of the mill, and the economic index is predicted to be the electricity consumption cost PC of the mill;
s2, acquiring parameters and calculating a production plan P: the parameters include: sales plan P1, inventory SL, minimum inventory SLmin；
S3, calculating the production time H;
s4, matching the production time H with the peak-valley level power utilization time:
if the first matching result is that the hours VH of the complete off-peak electricity consumption time is more than the production time H, the production plan P selects the complete off-peak electricity consumption time period, then calculates the time of the total startup and shutdown number N, and finally calculates the electricity consumption cost PC of the mill1；
If the second matching result is that the complete off-peak electricity consumption time is smallThe time VH is less than the production time H, the production plan P selects the full off-peak electricity consumption time period, then calculates the full flat electricity consumption time FH, and finally calculates the electricity consumption cost PC of the mill2；
If the third matching result is that the hours VH + the full flat period electricity utilization time FH < the production time H when the full off-peak electricity utilization time is used up, then the peak electricity time PH is calculated, and finally the electricity utilization cost PC of the mill is calculated3；
If meeting the electricity-limiting plan or haze production-limiting plan, stopping the production plan P;
and S5, implementing the production plan P and outputting the electricity consumption cost analysis result.
Further, in step S1, mill unit power consumption SPC = unit power consumption B + (single start-up power consumption C + single shutdown power consumption D) total start-up shutdown number N/total output P; mill electricity cost PC = Σ single start-up electricity consumption C × electricity price + unit electricity consumption B × mill stand-time yield a + single shutdown electricity consumption D × electricity price.
Further, in the step S2, the production plan P = sales plan P1-stock SL + minimum stock SLmin。
Further, in step S2, the production time H = production plan P/mill stand-hour yield a.
In a second aspect, a system for production and power analysis of a cement mill in a cement plant comprises a parameter setting module, a production data input module and a production data output module, which are connected with each other by data, wherein the parameter setting module comprises parameters and equations in steps S1-S3, and is used for setting parameters, equations, units and logical operation formulas; the production data input module comprises the parameter values in the steps S1-S4 and is used for manually inputting specific production values; the production data output module includes the numerical value output, the chart output and the combination output in the step S5, and is used for analysis by the management personnel.
The beneficial effects of the implementation of the invention are as follows: the invention is suitable for the complex and complicated environment faced by cement plants at present, provides an optimized production and power utilization analysis method for cement enterprises by combining peak-to-valley electricity price, electricity consumption, production, sales, inventory and the like, and is applied to a computer software system, so that an optimal hour-level production plan can be established, the power utilization cost for production under different situations is simulated in advance, and the aims of minimizing the production cost of the enterprises and maximizing the profit of the enterprises are fulfilled by comparing technical index prediction and economic index prediction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1: step diagrams;
FIG. 2: structure diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a first aspect, in one embodiment of the present invention, a method for cement plant mill production and power usage analysis comprises the steps of:
s1, determining parameters: the method comprises technical index prediction and economic index prediction, wherein: the technical index is predicted to be the unit electricity consumption SPC of the mill, and the economic index is predicted to be the electricity consumption cost PC of the mill;
s2, acquiring parameters and calculating a production plan P: the parameters include: sales plan P1, inventory SL, minimum inventory SLmin;
s3, calculating the production time H;
s4, matching the production time H with the peak-valley level power utilization time:
if the first matching result is that the hours VH of the complete off-peak electricity consumption time is more than the production time H, the production plan P selects the complete off-peak electricity consumption time period, then the time of the total startup and shutdown number N is calculated, and finally the electricity consumption cost PC1 of the mill is calculated;
if the second matching result is that the hours VH of the completely off-peak electricity consumption time is less than the production time H, the production plan P selects the completely off-peak electricity consumption time period, then calculates the completely flat electricity consumption time FH, and finally calculates the electricity consumption cost PC2 of the grinder;
if the third matching result is that the hours VH + the full flat-section electricity utilization time FH are less than the production time H when the full valley electricity utilization time is used up, then the peak electricity time PH is calculated, and finally the electricity utilization cost PC3 of the mill is calculated;
if meeting the electricity-limiting plan or haze production-limiting plan, stopping the production plan P;
and S5, implementing the production plan P and outputting the electricity consumption cost analysis result.
In step S1, mill unit power consumption SPC = unit power consumption B + (single start-up power consumption C + single shutdown power consumption D) × total number of start-up and shut-down operations N/total output P; mill electricity cost PC = Σ single start-up electricity consumption C × electricity price + unit electricity consumption B × mill stand-time yield a + single shutdown electricity consumption D × electricity price.
In step S2, the production plan P = sales plan P1 — stock SL + minimum stock SLmin.
In step S2, the production time H = production plan P/mill stand-hour yield a.
In a second aspect, in one embodiment of the present invention, a system for analyzing power consumption and production of a cement mill in a cement plant comprises a parameter setting module, a production data input module and a production data output module, which are connected with each other by data, wherein the parameter setting module comprises parameters and equations in steps S1-S3, and is used for setting parameters, equations, units and logical operation expressions; the production data input module comprises the parameter values in the steps S1-S4 and is used for manually inputting specific production values; the production data output module includes the numerical value output, the chart output and the combination output in the step S5, and is used for analysis by the management personnel.
In practice, the high-energy-consumption equipment of a cement plant is a mill, production is carried out according to a process path of a raw mill, a coal mill and a cement mill, in the aspect of a system for cement plant mill production and electricity utilization analysis, the electricity cost needs to be predicted for a production plan of 3-7 days in the future, a production dispatcher (or an operation manager) of the plant inputs the production plan of 3-7 days per hour in the future into the system, and the system automatically calculates the total electricity cost according to the average electricity consumption, the peak-to-valley operation time and the idle running electricity consumption (given by a plant process engineer) required by each start-up and shut-down of the mill; it is generally desirable for a dispatcher to enter multiple sets of plans to select the best production schedule; and finally, the system calculates the energy price according to different pricing strategies and calculates the energy consumption and the energy cost of the service model according to the provided built-in calculation formula. Through the system for the production and the electricity analysis of the cement plant mill, the related management personnel of the cement plant can quickly, clearly and accurately obtain the electric power cost and the production plan which need to be consumed in the production process, and further select the optimal scheme from the electric power cost and the production plan and put the optimal scheme into practice, so that the management level of the cement plant is effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A method for cement plant mill production and power usage analysis, comprising the steps of:
s1, determining parameters: the method comprises technical index prediction and economic index prediction, wherein: the technical index is predicted to be the unit electricity consumption SPC of the mill, and the economic index is predicted to be the electricity consumption cost PC of the mill;
s2, acquiring parameters and calculating a production plan P: the parameters include: sales plan P1, inventory SL, minimum inventory SLmin；
S3, calculating the production time H;
s4, matching the production time H with the peak-valley level power utilization time:
if the first matching result is that the hours VH of the completely off-peak electricity consumption time is more than the production time H, the production plan P selects the completely off-peak electricity consumption time period and counts the timeCalculating the total starting and stopping time N, and finally calculating the electricity consumption cost PC of the mill1；
If the second matching result is that the hours VH of the completely off-peak electricity consumption time is less than the production time H, the production plan P selects the completely off-peak electricity consumption time period, then calculates the completely flat electricity consumption time FH, and finally calculates the electricity consumption cost PC of the mill2；
If the third matching result is that the hours VH + the full flat period electricity utilization time FH < the production time H when the full off-peak electricity utilization time is used up, then the peak electricity time PH is calculated, and finally the electricity utilization cost PC of the mill is calculated3；
If meeting the electricity-limiting plan or haze production-limiting plan, stopping the production plan P;
and S5, implementing the production plan P and outputting the electricity consumption cost analysis result.
2. The method for cement plant mill production and electricity consumption analysis according to claim 1, wherein in step S1,
mill unit power consumption SPC = unit power consumption B + (single start-up power consumption C + single shutdown power consumption D) total start-up shutdown number N/total production P;
mill electricity cost PC = Σ single start-up electricity consumption C × electricity price + unit electricity consumption B × mill stand-time yield a + single shutdown electricity consumption D × electricity price.
3. The method for cement plant mill production and electricity consumption analysis according to claim 1, wherein in step S2,
production plan P = sales plan P1-inventory SL + minimum inventory SLmin。
4. The method for cement plant mill production and electricity consumption analysis according to claim 1, wherein in step S3,
production time H = production plan P/mill stand-hour yield a.
5. A system for cement plant mill production and power consumption analysis, comprising a parameter setting module, a production data input module and a production data output module which are connected with each other by data, wherein the parameter setting module comprises parameters and equations in steps S1-S3, and is used for setting parameters, formulas, units and logical operational expressions; the production data input module comprises the parameter values in the steps S1-S4 and is used for manually inputting specific production values; the production data output module includes the numerical value output, the chart output and the combination output in the step S5, and is used for analysis by the management personnel.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376026A (en) * | 2011-10-31 | 2012-03-14 | 冶金自动化研究设计院 | Industrial enterprise power utilization load optimizing system |
| US20130226669A1 (en) * | 2012-02-29 | 2013-08-29 | The Trustees Of Princeton University | System and Methods for Time Dependent Internet Pricing |
| CN108108994A (en) * | 2017-11-10 | 2018-06-01 | 浙江中控软件技术有限公司 | For the plan optimization method of chemical enterprise supply chain |
| CN111045403A (en) * | 2019-11-20 | 2020-04-21 | 广州博依特智能信息科技有限公司 | Ball-milling workshop production scheduling method and device based on genetic algorithm |
| CN111650901A (en) * | 2020-05-19 | 2020-09-11 | 北京坚构创新科技有限公司 | Intelligent unattended factory system for cement production line |
| CN111813057A (en) * | 2020-06-11 | 2020-10-23 | 青海绿能数据有限公司 | Energy management system of cement production plant |
| CN112465454A (en) * | 2020-11-25 | 2021-03-09 | 宁波金田铜业(集团)股份有限公司 | Scheduling system and method applied to order production process |
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- 2021-12-20 CN CN202111560647.6A patent/CN114219538A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376026A (en) * | 2011-10-31 | 2012-03-14 | 冶金自动化研究设计院 | Industrial enterprise power utilization load optimizing system |
| US20130226669A1 (en) * | 2012-02-29 | 2013-08-29 | The Trustees Of Princeton University | System and Methods for Time Dependent Internet Pricing |
| CN108108994A (en) * | 2017-11-10 | 2018-06-01 | 浙江中控软件技术有限公司 | For the plan optimization method of chemical enterprise supply chain |
| CN111045403A (en) * | 2019-11-20 | 2020-04-21 | 广州博依特智能信息科技有限公司 | Ball-milling workshop production scheduling method and device based on genetic algorithm |
| CN111650901A (en) * | 2020-05-19 | 2020-09-11 | 北京坚构创新科技有限公司 | Intelligent unattended factory system for cement production line |
| CN111813057A (en) * | 2020-06-11 | 2020-10-23 | 青海绿能数据有限公司 | Energy management system of cement production plant |
| CN112465454A (en) * | 2020-11-25 | 2021-03-09 | 宁波金田铜业(集团)股份有限公司 | Scheduling system and method applied to order production process |
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