Method, device and equipment for determining control parameters of coal mill and storage medium

Abstract

The application discloses a coal mill control parameter determination method, device, equipment and storage medium. The method comprises the following steps: acquiring the hot air baffle valve position opening degree, the cold air baffle valve position opening degree, the inlet hot air temperature, the inlet cold air temperature and the coal related information of the coal mill; determining the hot air heat of the coal mill according to the hot air baffle valve position opening degree and the inlet hot air temperature; determining the cold air heat of the coal mill according to the cold air baffle valve position opening degree and the inlet cold air temperature; determining the total air-powder heat of the coal mill according to the hot air heat, the cold air heat and the coal related information; determining the actual outlet air-powder temperature of the coal mill according to the total air-powder heat, the hot air baffle valve position opening degree, the cold air baffle valve position opening degree and the coal related information; and generating the coal mill control parameter comprising the actual outlet air-powder temperature. The application embodiment realizes accurate determination of the control parameter generated in the running process of the coal mill.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data processing, and in particular to a coal mill control parameter determination method, device, equipment and storage medium. BACKGROUND

[0002] Under the energy situation of large-scale grid connection of new energy, the supporting energy storage peak shaving capacity is difficult to smooth the volatility of wind and light power sources, and thermal power is passively in a deep peak shaving state. As the main system of frequent start-stop in thermal power peak shaving, the coal mill is complex in system, large in start-stop operation amount, and the operation habits of the operation personnel are different, the operation level is uneven, and the pulverizing start-stop process is easy to form a large disturbance to the unit steam temperature and steam pressure. The control parameters in the running process of the coal mill are difficult to accurately determine.

[0003] At present, the control parameters of the running process of the coal mill need to be obtained by manual operation of the coal mill in the running process. However, the control parameters of the running process obtained are not accurate due to the complex switch quantity step sequence and analog quantity step sequence involved in the running process of the coal mill, and there is a situation of deviating from the actual control parameter value. SUMMARY

[0004] The present application provides a coal mill control parameter determination method, device, equipment and storage medium to accurately determine the control parameters generated in the running process of the coal mill.

[0005] According to an aspect of the present application, a coal mill control parameter determination method is provided, which comprises:

[0006] obtaining the hot air baffle valve position opening degree, the cold air baffle valve position opening degree, the inlet hot air temperature, the inlet cold air temperature and the coal related information of the coal mill;

[0007] determining the hot air heat of the coal mill according to the hot air baffle valve position opening degree and the inlet hot air temperature;

[0008] determining the cold air heat of the coal mill according to the cold air baffle valve position opening degree and the inlet cold air temperature;

[0009] determining the total air-pulverized coal heat of the coal mill according to the hot air heat, the cold air heat and the coal related information;

[0010] determining the actual outlet air-pulverized coal temperature of the coal mill according to the total air-pulverized coal heat, the hot air baffle valve position opening degree, the cold air baffle valve position opening degree and the coal related information;

[0011] generating the coal mill control parameters including the actual outlet air-pulverized coal temperature.

[0012] According to another aspect of the present application, there is provided a coal mill control parameter determination apparatus, comprising:

[0013] an information obtaining module configured to obtain a hot air damper valve position opening degree, a cold air damper valve position opening degree, an inlet hot air temperature, an inlet cold air temperature and coal related information of the coal mill;

[0014] a hot air heat quantity determination module configured to determine a hot air heat quantity of the coal mill according to the hot air damper valve position opening degree and the inlet hot air temperature;

[0015] a cold air heat quantity determination module configured to determine a cold air heat quantity of the coal mill according to the cold air damper valve position opening degree and the inlet cold air temperature;

[0016] a total air and coal heat quantity determination module configured to determine a total air and coal heat quantity of the coal mill according to the hot air heat quantity, the cold air heat quantity and the coal related information;

[0017] an actual air and coal temperature determination module configured to determine an actual outlet air and coal temperature of the coal mill according to the total air and coal heat quantity, the hot air damper valve position opening degree, the cold air damper valve position opening degree and the coal related information;

[0018] a control parameter generation module configured to generate a coal mill control parameter comprising the actual outlet air and coal temperature.

[0019] According to another aspect of the present application, there is provided an electronic device, comprising:

[0020] at least one processor; and

[0021] a memory communicatively connected to the at least one processor; wherein,

[0022] the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the coal mill control parameter determination method according to any one of the embodiments of the present application.

[0023] According to another aspect of the present application, there is provided a computer readable storage medium storing computer instructions for enabling a processor to perform the coal mill control parameter determination method according to any one of the embodiments of the present application when executed by the processor.

[0024] The technical scheme of the embodiment of the present application determines the hot air heat of the coal mill according to the hot air baffle valve opening and the inlet hot air temperature; determines the cold air heat of the coal mill according to the cold air baffle valve opening and the inlet cold air temperature; determines the total air and powder heat of the coal mill according to the hot air heat, the cold air heat and the coal related information; determines the actual outlet air and powder temperature of the coal mill according to the total air and powder heat, the hot air baffle valve opening, the cold air baffle valve opening and the coal related information; and generates the coal mill control parameters including the actual outlet air and powder temperature. The above technical scheme simulates and determines the actual outlet air and powder temperature of the coal mill and other coal mill control parameters based on the related parameters of the coal mill that can be directly obtained, such as the cold and hot air baffle valve openings, the cold and hot air temperatures and other related parameters, so as to realize accurate determination of the coal mill control parameters.

[0025] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0027] Figure 1 is a flow chart of a coal mill control parameter determination method provided by the first embodiment of the present application;

[0028] Figure 2 is a flow chart of a coal mill control parameter determination method provided by the second embodiment of the present application;

[0029] Figure 3 is a flow chart of a coal mill control parameter determination method provided by the third embodiment of the present application;

[0030] Figure 4 is a structural schematic diagram of a coal mill control parameter determination device provided by the fourth embodiment of the present application;

[0031] Figure 5 is a structural schematic diagram of an electronic device for implementing the coal mill control parameter determination method of the present application. DETAILED DESCRIPTION

[0032] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should belong to the protection scope of the present application.

[0033] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in other than the order illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a list of steps or units need not be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products or devices.

[0034] Embodiment one

[0035] Figure 1 A flowchart of a coal mill control parameter determination method provided by the first embodiment of the present application, the present embodiment can be applicable to the case of determining the control parameters of the coal mill running process, and the method can be executed by a coal mill control parameter determination device. The coal mill control parameter determination device can be realized in the form of hardware and / or software, and can be configured in an electronic device. As shown in the figure, the method comprises: Figure 1

[0036] S110, obtaining the hot air baffle valve position opening degree, the cold air baffle valve position opening degree, the inlet hot air temperature, the inlet cold air temperature and the coal related information of the coal mill.

[0037] Wherein, the hot air baffle and the cold air baffle are components arranged on the upper part of the coal mill; the inlet hot air temperature can be the temperature of the air entering from the hot air baffle of the coal mill; the inlet cold air temperature can be the temperature of the air entering from the cold air baffle of the coal mill; the coal related information can include the coal supply amount and the coal temperature of the coal mill and other related information.

[0038] S120, determining the hot air heat of the coal mill according to the hot air baffle valve position opening degree and the inlet hot air temperature.

[0039] ​Exemplarily, the hot air heat quantity of the coal mill can be determined according to the hot air damper valve opening degree and the inlet hot air temperature, based on a pre-trained hot air heat quantity determination network model. The hot air heat quantity determination network model can be pre-trained based on historical hot air damper valve opening degrees and historical inlet hot air temperatures in a historical period, on a preset network model.

[0040] To further improve the determination accuracy of the hot air heat quantity of the coal mill, the following method can also be used to determine the hot air heat quantity.

[0041] In an optional embodiment, the hot air heat quantity of the coal mill is determined according to the hot air damper valve opening degree and the inlet hot air temperature, comprising: determining the hot air flow according to the hot air damper valve opening degree; and determining the hot air heat quantity of the coal mill according to the hot air flow and the inlet hot air temperature.

[0042] Exemplarily, the hot air flow is determined according to the hot air damper valve opening degree, based on a preset multi-segment function. The multi-segment function can be a function composed of 12 broken line segments. According to the range in which the hot air damper valve opening degree falls, a corresponding straight line can be determined, and based on the function corresponding to the straight line, the hot air flow can be determined. For example, the multi-segment function can be a function composed of 12 broken line segments composed of 13 coordinate points. The 13 coordinate points are (X1, Y1), (X2, Y2), …, (X 13 ,Y 13 ). If the hot air damper valve opening degree X k falls within the range of (X4, X5), a straight line generated by (X4, Y4) and (X5, Y5) can be used as a straight line function for determining the hot air flow, and the hot air flow can be determined based on the straight line function and the hot air damper valve opening degree X k . The number and values of the coordinate points used to generate the multi-segment function can be pre-set by a person skilled in the art according to actual needs.

[0043] Exemplarily, the product of the hot air flow and the inlet air temperature, or the product after average weighting, can be used as the hot air heat quantity of the coal mill.

[0044] S130, determining the cold air heat quantity of the coal mill according to the cold air damper valve opening degree and the inlet cold air temperature.

[0045] Exemplarily, the cold air heat quantity of the coal mill can be determined according to the cold air damper valve opening degree and the inlet cold air temperature, based on a pre-trained cold air heat quantity determination network model. The cold air heat quantity determination network model can be pre-trained based on historical cold air damper valve opening degrees and historical inlet cold air temperatures in a historical period, on a preset network model.

[0046] For further improving the determination accuracy of the cold air heat of the coal mill, the following method can also be used to determine the cold air heat.

[0047] In an optional embodiment, the cold air heat of the coal mill is determined according to the cold air baffle valve opening degree and the inlet cold air temperature, including: determining the cold air flow according to the cold air baffle valve opening degree; determining the cold air heat of the coal mill according to the cold air flow and the inlet cold air temperature.

[0048] For example, the cold air flow is determined according to the cold air baffle valve opening degree based on a preset multi-segment function. The multi-segment function can be a function composed of 12 broken line segments. According to the range in which the cold air baffle valve opening degree falls, the corresponding straight line can be determined, and based on the function corresponding to the straight line, the cold air flow can be determined. For example, the multi-segment function can be a function composed of 12 broken line segments composed of 13 coordinate points. The 13 coordinate points are (M1, N1), (M2, N2), …, (M 13 ,N 13 ). If the cold air baffle valve opening degree M k falls within the range of (M5, M6), the straight line generated by (M5, N5) and (M6, N6) can be used as the straight line function for determining the cold air flow, and the cold air flow can be determined based on the straight line function and the cold air baffle valve opening degree M k . The number and values of the coordinate points used to generate the multi-segment function can be pre-set by relevant technical personnel according to actual needs.

[0049] S140, determining the total air-powder heat of the coal mill according to the hot air heat, the cold air heat and the coal-related information.

[0050] For example, the total air-powder heat of the coal mill can be determined according to the hot air heat, the cold air heat and the coal-related information based on a pre-trained total air-powder heat determination network model. The total air-powder heat determination network model can be obtained by pre-training a preset network model based on historical hot air heat, historical cold air heat and historical coal-related information in a historical period.

[0051] Optionally, the coal heat can also be determined according to the coal-related information, and the sum of the hot air heat, the cold air heat and the coal heat is used as the total air-powder heat of the coal mill. It can be understood that, for further improving the determination accuracy of the total air-powder heat of the coal mill, the following method can also be used to determine the total air-powder heat.

[0052] In an optional embodiment, the coal-related information comprises a coal supply amount and a coal temperature; and in correspondence, the total mill air-fuel heat is determined according to the hot air heat, the cold air heat and the coal-related information, comprising: the coal heat of the mill is determined according to the coal supply amount and the coal temperature; and the total mill air-fuel heat is determined according to the hot air heat, the cold air heat and the coal heat.

[0053] For example, the coal heat of the mill is determined according to the coal supply amount and the coal temperature. Specifically, if the coal supply amount is F f , and the coal temperature is T m , the coal heat Q m of the mill can be determined in the following manner:

[0054] Q m = K1*F f *T m .

[0055] Wherein, K1 is a specific heat coefficient.

[0056] For example, the total of the hot air heat, the cold air heat and the coal heat can be determined as the total mill air-fuel heat; or the weighted average of the hot air heat, the cold air heat and the coal heat can be determined as the total mill air-fuel heat. Optionally, if the total mill air-fuel heat is the weighted average of the three, the weight parameters of the hot air heat, the cold air heat and the coal heat can be pre-set by relevant technical personnel according to actual needs.

[0057] S150, determining the actual outlet air-fuel temperature of the mill according to the total mill air-fuel heat, the hot air damper valve opening degree, the cold air damper valve opening degree and the coal-related information.

[0058] For example, the hot air flow can be determined according to the hot air damper valve opening degree; the cold air flow can be determined according to the cold air damper valve opening degree; and the actual outlet air-fuel temperature of the mill can be determined according to the hot air flow, the cold air flow, the total mill air-fuel heat and the coal-related information.

[0059] For example, the actual outlet air-fuel temperature of the mill can be determined according to the hot air flow, the cold air flow, the total mill air-fuel heat and the coal-related information based on a pre-set actual temperature determination network model. Wherein, the actual temperature determination network model can be obtained by model training of a pre-set network model based on historical hot air flow, historical cold air flow, historical total mill air-fuel heat and historical coal-related information as a sample training set in a historical period.

[0060] S160, generating the mill control parameters comprising the actual outlet air-fuel temperature.

[0061] Wherein, the mill control parameters can comprise the hot air flow, the cold air flow, the hot air heat, the cold air heat and the total mill air-fuel heat, etc. in addition to the actual outlet air-fuel temperature.

[0062] The technical scheme of the embodiment of the present application determines the hot air heat of the coal mill according to the hot air damper valve opening and the inlet hot air temperature, determines the cold air heat of the coal mill according to the cold air damper valve opening and the inlet cold air temperature, determines the total air and coal heat of the coal mill according to the hot air heat, the cold air heat and the coal related information, determines the actual outlet air and coal temperature of the coal mill according to the total air and coal heat, the hot air damper valve opening, the cold air damper valve opening and the coal related information, and generates the coal mill control parameter including the actual outlet air and coal temperature. The above technical scheme simulates and determines the actual outlet air and coal temperature of the coal mill and other coal mill control parameters based on the related parameters of the coal mill that can be directly obtained, such as the cold and hot air damper valve openings, the cold and hot air temperatures and other related parameters, thereby realizing accurate determination of the coal mill control parameters.

[0063] Embodiment two

[0064] Figure 2 A flowchart of a coal mill control parameter determination method provided by the second embodiment of the present application is provided, and the present embodiment is optimized and improved on the basis of the above technical schemes.

[0065] Further, the step of "determining the actual outlet air and coal temperature of the coal mill according to the total air and coal heat, the hot air damper valve opening, the cold air damper valve opening and the coal related information" is refined into "determining the hot air flow according to the hot air damper valve opening, determining the cold air flow according to the cold air damper valve opening, determining the inlet air volume of the coal mill according to the cold air flow and the hot air flow, and determining the actual outlet air and coal temperature of the coal mill according to the coal supply amount, the inlet air volume and the total air and coal heat in the coal related information". Correspondingly, the step of "generating the coal mill control parameter including the actual outlet air and coal temperature" is refined into "generating the coal mill control parameter including the actual outlet air and coal temperature and the inlet air volume". The determination method of the actual outlet air and coal temperature of the coal mill is perfected, and the coal mill control parameter is perfected. It should be noted that the parts not described in detail in the present embodiment can be referred to the descriptions of other embodiments.

[0066] As shown in Figure 2 the method comprises the following specific steps:

[0067] S210, obtaining the hot air damper valve opening, the cold air damper valve opening, the inlet hot air temperature, the inlet cold air temperature and the coal related information of the coal mill.

[0068] S220, determining the hot air heat of the coal mill according to the hot air damper valve opening and the inlet hot air temperature.

[0069] S230, determining the cold air heat of the coal mill according to the cold air damper valve opening and the inlet cold air temperature.

[0070] S240, determining the total heat of the wind and the coal powder according to the heat of the hot air, the heat of the cold air and the coal related information.

[0071] S250, determining the flow of the hot air according to the opening of the hot air baffle valve.

[0072] S260, determining the flow of the cold air according to the opening of the cold air baffle valve.

[0073] The flow of the cold air and the flow of the hot air can be obtained by the above-mentioned multi-segment function conversion, which will not be described in detail in this embodiment.

[0074] S270, determining the inlet air volume of the coal mill according to the flow of the cold air and the flow of the hot air.

[0075] The flow of the cold air and the flow of the hot air can be added, and the inlet air volume of the coal mill can be obtained by the inertia filtering function after the addition. The inertia filtering function is not limited in this embodiment, and can be any inertia filtering function. For example, it can be a first-order inertia filtering function or a second-order inertia filtering function.

[0076] S280, determining the actual outlet air and coal powder temperature of the coal mill according to the coal supply amount, the inlet air volume and the total heat of the wind and the coal powder in the coal related information.

[0077] In an optional embodiment, the actual outlet air and coal powder temperature of the coal mill is determined according to the coal supply amount, the inlet air volume and the total heat of the wind and the coal powder in the coal related information, including: determining the expected outlet air and coal powder temperature of the coal mill according to the coal supply amount, the inlet air volume and the total heat of the wind and the coal powder in the coal related information; determining the actual outlet air and coal powder temperature of the coal mill according to the expected outlet air and coal powder temperature.

[0078] The determination method of the expected outlet air and coal powder temperature of the coal mill can be as follows:

[0079]

[0080] Wherein, Q out is the total heat of the wind and the coal powder; K1 is the specific heat coefficient; F f is the coal supply amount; F a is the inlet air volume; T yq is the expected outlet air and coal powder temperature of the coal mill.

[0081] The determination method of the actual outlet air and coal powder temperature of the coal mill can be as follows:

[0082] T sj = K2*T yq ;

[0083] Wherein, T yqK1 is the expected outlet air powder temperature of the coal mill; K2 is a temperature coefficient preset by a relevant technical personnel according to actual needs.

[0084] Optionally, if the hot primary air isolation door of the coal mill is opened, the actual outlet air powder temperature is T sj , and if the hot primary air isolation door of the coal mill is closed, the actual outlet air powder temperature is T sj = 0. T sj determined by passing through a three-order inertial filtering function is determined as the actual outlet air powder temperature.

[0085] S290, generating a coal mill control parameter including the actual outlet air powder temperature and the inlet air quantity.

[0086] In an optional embodiment, the inlet air temperature of the coal mill is determined according to the inlet air quantity, the hot air heat and the cold air heat; and correspondingly, the coal mill control parameter including the actual outlet air powder temperature and the inlet air quantity is generated, including: generating a coal mill control parameter including the actual outlet air powder temperature, the inlet air quantity and the inlet air temperature.

[0087] Wherein, the determination method of the inlet air temperature T in of the coal mill is as follows:

[0088]

[0089] Wherein, Q1 is the hot air heat; Q2 is the cold air heat; F a is the inlet air quantity; F(·) is a preset second-order inertial filtering function.

[0090] Exemplarily, the coal mill control parameter including the actual outlet air powder temperature, the inlet air quantity and the inlet air temperature is generated.

[0091] The technical scheme of the embodiment determines the hot air flow according to the hot air baffle valve opening degree, determines the cold air flow according to the cold air baffle valve opening degree, determines the inlet air quantity of the coal mill according to the cold air flow and the hot air flow, and determines the actual outlet air powder temperature of the coal mill according to the coal supply quantity, the inlet air quantity and the total air powder heat in the coal related information, so that the accurate determination of the actual outlet air powder temperature of the coal mill is realized, and the determination accuracy of the coal mill control parameter is improved.

[0092] Embodiment three

[0093] Figure 3 It is an interaction schematic diagram of a coal mill control parameter determination method provided by the embodiment three of the application. The embodiment provides a preferred example based on the above-mentioned embodiments.

[0094] As shown in Figure 3 , the method comprises the following specific steps:

[0095] S301, acquiring the hot air damper valve position opening degree, the cold air damper valve position opening degree, the inlet hot air temperature, the inlet cold air temperature, the coal feed amount and the coal temperature of the coal mill.

[0096] S302, determining the hot air flow according to the hot air damper valve position opening degree.

[0097] S303, determining the hot air heat of the coal mill according to the hot air flow and the inlet hot air temperature.

[0098] S304, determining the cold air flow according to the cold air damper valve position opening degree.

[0099] S305, determining the cold air heat of the coal mill according to the cold air flow and the inlet cold air temperature.

[0100] S306, determining the coal heat of the coal mill according to the coal feed amount and the coal temperature.

[0101] S307, determining the total air-pulverized coal heat of the coal mill according to the hot air heat, the cold air heat and the coal heat.

[0102] S308, determining the inlet air volume of the coal mill according to the cold air flow and the hot air flow.

[0103] S309, determining the actual outlet air-pulverized coal temperature of the coal mill according to the coal feed amount, the inlet air volume and the total air-pulverized coal heat in the coal related information.

[0104] S310, determining the inlet air temperature of the coal mill according to the inlet air volume, the hot air heat and the cold air heat.

[0105] S311, generating the coal mill control parameters including the actual outlet air-pulverized coal temperature, the inlet air volume and the inlet air temperature.

[0106] It should be noted that the mathematical function of the present application can be a configuration module in a distributed control system (DCS), and can realize process simulation based on the DCS configuration based on the acquired related input parameters of the coal mill. Specifically, the parameters can be input into the corresponding configuration module in the DCS, wherein the connection relationship between the configuration modules is pre-built by relevant technical personnel.

[0107] Embodiment four

[0108] Figure 4 A structure diagram of a coal mill control parameter determination device provided by the fourth embodiment of the present application. The coal mill control parameter determination device provided by the embodiment of the present application can be applied to the case of determining the control parameters of the running process of the coal mill. The coal mill control parameter determination device can be realized in the form of hardware and / or software, such as Figure 4As shown, the device specifically comprises: an information acquisition module 401, a hot air heat determination module 402, a cold air heat determination module 403, a total air and coal heat determination module 404, an actual air and coal temperature determination 405, and a control parameter generation module 406.

[0109] wherein,

[0110] The information acquisition module 401 is configured to acquire the hot air damper valve opening degree, the cold air damper valve opening degree, the inlet hot air temperature, the inlet cold air temperature, and the coal-related information of the coal mill.

[0111] The hot air heat determination module 402 is configured to determine the hot air heat of the coal mill according to the hot air damper valve opening degree and the inlet hot air temperature.

[0112] The cold air heat determination module 403 is configured to determine the cold air heat of the coal mill according to the cold air damper valve opening degree and the inlet cold air temperature.

[0113] The total air and coal heat determination module 404 is configured to determine the total air and coal heat of the coal mill according to the hot air heat, the cold air heat, and the coal-related information.

[0114] The actual air and coal temperature determination module 405 is configured to determine the actual outlet air and coal temperature of the coal mill according to the total air and coal heat, the hot air damper valve opening degree, the cold air damper valve opening degree, and the coal-related information.

[0115] The control parameter generation module 406 is configured to generate the coal mill control parameter including the actual outlet air and coal temperature.

[0116] The technical scheme of the embodiment of the present application determines the hot air heat of the coal mill according to the hot air damper valve opening degree and the inlet hot air temperature, determines the cold air heat of the coal mill according to the cold air damper valve opening degree and the inlet cold air temperature, determines the total air and coal heat of the coal mill according to the hot air heat, the cold air heat, and the coal-related information, determines the actual outlet air and coal temperature of the coal mill according to the total air and coal heat, the hot air damper valve opening degree, the cold air damper valve opening degree, and the coal-related information, and generates the coal mill control parameter including the actual outlet air and coal temperature. The above technical scheme simulates and determines the actual outlet air and coal temperature and other coal mill control parameters of the coal mill based on the related parameters of the coal mill that can be directly acquired, such as the cold and hot air damper valve opening degrees, the cold and hot air temperatures, and other related parameters, thereby realizing accurate determination of the coal mill control parameters.

[0117] Optionally, the hot air heat determination module 402 comprises:

[0118] The first hot air flow determination unit is configured to determine the hot air flow according to the hot air damper valve opening degree.

[0119] hot air heat determining unit, configured to determine hot air heat of the coal mill according to the hot air flow and the inlet hot air temperature.

[0120] Optionally, the cold air heat determining module 403 comprises:

[0121] a first cold air flow determining unit, configured to determine cold air flow according to the cold air damper valve opening degree;

[0122] a cold air heat determining unit, configured to determine cold air heat of the coal mill according to the cold air flow and the inlet cold air temperature.

[0123] Optionally, the coal related information comprises coal supply amount and coal temperature; correspondingly, the total air-pulverized coal heat determining module 404 comprises:

[0124] a coal heat determining unit, configured to determine coal heat of the coal mill according to the coal supply amount and the coal temperature;

[0125] a total air-pulverized coal heat determining unit, configured to determine total air-pulverized coal heat of the coal mill according to the hot air heat, the cold air heat and the coal heat.

[0126] Optionally, the actual air-pulverized coal temperature determining module 405 comprises:

[0127] a second hot air flow determining unit, configured to determine hot air flow according to the hot air damper valve opening degree;

[0128] a second cold air flow determining unit, configured to determine cold air flow according to the cold air damper valve opening degree;

[0129] an inlet air volume determining unit, configured to determine inlet air volume of the coal mill according to the cold air flow and the hot air flow;

[0130] an actual air-pulverized coal temperature determining unit, configured to determine actual outlet air-pulverized coal temperature of the coal mill according to coal supply amount in the coal related information, the inlet air volume and the total air-pulverized coal heat;

[0131] Correspondingly, the control parameter generating module 406 comprises:

[0132] a first parameter generating unit, configured to generate coal mill control parameters comprising the actual outlet air-pulverized coal temperature and the inlet air volume.

[0133] Optionally, the actual air-pulverized coal temperature determining unit comprises:

[0134] an expected air-pulverized coal temperature determining sub-unit, configured to determine expected outlet air-pulverized coal temperature of the coal mill according to coal supply amount in the coal related information, the inlet air volume and the total air-pulverized coal heat.

[0135] An actual wind powder temperature determining sub-unit is configured to determine an actual outlet wind powder temperature of the coal mill according to the expected outlet wind powder temperature.

[0136] Optionally, the device further comprises:

[0137] An inlet wind temperature determining module is configured to determine an inlet wind temperature of the coal mill according to the inlet wind amount, the hot wind heat and the cold wind heat.

[0138] Correspondingly, the control parameter generating module 406 comprises:

[0139] A second parameter generating unit is configured to generate a coal mill control parameter comprising the actual outlet wind powder temperature, the inlet wind amount and the inlet wind temperature.

[0140] The coal mill control parameter determining device provided by the embodiments of the present application can execute the coal mill control parameter determining method provided by any of the embodiments of the present application, and has the corresponding function modules and beneficial effects of the execution method.

[0141] Embodiment five

[0142] Figure 5 A structural schematic diagram of an electronic device 50 that can be used to implement embodiments of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular telephones, smartphones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown here, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the applications described and / or claimed in this document.

[0143] As shown in Figure 5 The electronic device 50 includes at least one processor 51 and a memory, such as a read-only memory (ROM) 52, a random access memory (RAM) 53, etc., connected to the at least one processor 51 in communication, where the memory stores a computer program executable by the at least one processor. The processor 51 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 52 or the computer program loaded from the storage unit 58 into the random access memory (RAM) 53. In the RAM 53, various programs and data required for the operation of the electronic device 50 can also be stored. The processor 51, the ROM 52 and the RAM 53 are connected to each other through a bus 54. An input / output (I / O) interface 55 is also connected to the bus 54.

[0144] A plurality of components in the electronic device 50 are connected to the I / O interface 55, including: an input unit 56, such as a keyboard, a mouse, etc.; an output unit 57, such as various types of displays, speakers, etc.; a storage unit 58, such as a magnetic disk, an optical disk, etc.; and a communication unit 59, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 59 allows the electronic device 50 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0145] The processor 51 can be various general and / or special purpose processing components having processing and computing capabilities. Some examples of the processor 51 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 51 performs various methods and processes described above, such as the mill control parameter determination method.

[0146] In some embodiments, the mill control parameter determination method can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 58. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 50 via the ROM 52 and / or the communication unit 59. When the computer program is loaded onto the RAM 53 and executed by the processor 51, one or more steps of the mill control parameter determination method described above can be performed. Alternatively, in other embodiments, the processor 51 can be configured to perform the mill control parameter determination method by any other appropriate means, such as by means of firmware.

[0147] The various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (PLD), a computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0148] Computer programs for implementing the methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer program, when executed, can cause instructions defined in the flow charts and / or block diagrams to be implemented. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a stand-alone software package and partially on a remote machine or entirely on a remote machine or server.

[0149] In the context of the present application, a computer readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer readable storage medium can be a machine readable signal medium. More specific examples of the machine readable signal medium will include one or more lines of electrical communication, portable computer disks, hard disk drives, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or Flash memory), optical fibers, portable compact disc read-only memories (CD-ROMs), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0150] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0151] The systems and techniques described herein can be implemented in a computing system that includes a back end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front end component, e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described herein, or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0152] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0153] It should be understood that the various forms of flow shown above can be re-ordered, added to, or deleted from without departing from the scope of the present disclosure. For example, the steps recited in the present disclosure can be executed in parallel, executed in series, or executed in different orders, and the present disclosure is not limited herein as such.

[0154] The specific embodiments described above are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that various modifications, combinations, sub-combinations, and alternatives can be made to the specific embodiments without departing from the spirit and principles of the present disclosure. Any further modifications, equivalents, and / or alternatives come within the scope of the present disclosure as recited by the claims.

Claims

1. A method for determining control parameters of a coal mill, characterized in that, The method comprises: acquiring a hot air damper valve position opening degree, a cold air damper valve position opening degree, an inlet hot air temperature, an inlet cold air temperature and coal-related information of a coal mill; determining a hot air heat quantity of the coal mill according to the hot air damper valve position opening degree and the inlet hot air temperature; determining a cold air heat quantity of the coal mill according to the cold air damper valve position opening degree and the inlet cold air temperature; determining a total air-pulverized coal heat quantity of the coal mill according to the hot air heat quantity, the cold air heat quantity and the coal-related information; determining an actual outlet air-pulverized coal temperature of the coal mill according to the total air-pulverized coal heat quantity, the hot air damper valve position opening degree, the cold air damper valve position opening degree and the coal-related information; generating a coal mill control parameter comprising the actual outlet air-pulverized coal temperature; the coal-related information comprises a coal supply quantity and a coal temperature; accordingly, the determining of the total air-pulverized coal heat quantity of the coal mill according to the hot air heat quantity, the cold air heat quantity and the coal-related information comprises: determining a coal heat quantity of the coal mill according to the coal supply quantity and the coal temperature; determining the total air-pulverized coal heat quantity of the coal mill according to the hot air heat quantity, the cold air heat quantity and the coal heat quantity.

2. The method of claim 1, wherein, the determining of the hot air heat quantity of the coal mill according to the hot air damper valve position opening degree and the inlet hot air temperature comprises: determining a hot air flow according to the hot air damper valve position opening degree; determining the hot air heat quantity of the coal mill according to the hot air flow and the inlet hot air temperature.

3. The method of claim 1, wherein, the determining of the cold air heat quantity of the coal mill according to the cold air damper valve position opening degree and the inlet cold air temperature comprises: determining a cold air flow according to the cold air damper valve position opening degree; determining the cold air heat quantity of the coal mill according to the cold air flow and the inlet cold air temperature.

4. The method of claim 1, wherein, the determining of the actual outlet air-pulverized coal temperature of the coal mill according to the total air-pulverized coal heat quantity, the hot air damper valve position opening degree, the cold air damper valve position opening degree and the coal-related information comprises: determining a hot air flow according to the hot air damper valve position opening degree; determining a cold air flow according to the cold air damper valve position opening degree; determining an inlet air quantity of the coal mill according to the cold air flow and the hot air flow; determining the actual outlet air-pulverized coal temperature of the coal mill according to a coal supply quantity in the coal-related information, the inlet air quantity and the total air-pulverized coal heat quantity; correspondingly, the generating of the coal mill control parameter comprising the actual outlet air-pulverized coal temperature comprises: generating the coal mill control parameter comprising the actual outlet air-pulverized coal temperature and the inlet air quantity.

5. The method of claim 4, wherein, the determining of the actual outlet air-pulverized coal temperature of the coal mill according to a coal supply quantity in the coal-related information, the inlet air quantity and the total air-pulverized coal heat quantity comprises: determining an expected outlet air-pulverized coal temperature of the coal mill according to the coal supply quantity in the coal-related information, the inlet air quantity and the total air-pulverized coal heat quantity; determining the actual outlet air-pulverized coal temperature of the coal mill according to the expected outlet air-pulverized coal temperature.

6. The method of claim 4, wherein, the method further comprises: determining an inlet air temperature of the coal mill according to the inlet air quantity, the hot air heat quantity and the cold air heat quantity; correspondingly, the generating of the coal mill control parameter comprising the actual outlet air-pulverized coal temperature and the inlet air quantity comprises: generating a mill control parameter including the actual outlet air-fuel temperature, the inlet air volume, and the inlet air temperature.

7. A device for determining control parameters of a coal mill, characterized in that, The method comprises the following steps: An information acquisition module is configured to acquire a hot air damper valve position opening degree, a cold air damper valve position opening degree, an inlet hot air temperature, an inlet cold air temperature, and coal-related information of a mill; A hot air heat quantity determination module is configured to determine a hot air heat quantity of the mill according to the hot air damper valve position opening degree and the inlet hot air temperature; A cold air heat quantity determination module is configured to determine a cold air heat quantity of the mill according to the cold air damper valve position opening degree and the inlet cold air temperature; An air-fuel total heat quantity determination module is configured to determine an air-fuel total heat quantity of the mill according to the hot air heat quantity, the cold air heat quantity, and the coal-related information; An actual outlet air-fuel temperature determination module is configured to determine an actual outlet air-fuel temperature of the mill according to the air-fuel total heat quantity, the hot air damper valve position opening degree, the cold air damper valve position opening degree, and the coal-related information; A control parameter generation module is configured to generate a mill control parameter including the actual outlet air-fuel temperature; The coal-related information includes a coal supply quantity and a coal temperature; accordingly, the air-fuel total heat quantity determination module comprises: A coal heat quantity determination unit is configured to determine a coal heat quantity of the mill according to the coal supply quantity and the coal temperature; An air-fuel total heat quantity determination unit is configured to determine an air-fuel total heat quantity of the mill according to the hot air heat quantity, the cold air heat quantity, and the coal heat quantity.

8. An electronic device, comprising: The electronic device comprises: at least one processor; and a memory connected with the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the mill control parameter determination method in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions for enabling the processor to execute the mill control parameter determination method in any one of claims 1-6 when executed.

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