System and method for adjusting the maintenance interval of a coal mill based on stone coal

Abstract

The present application relates to the technical field of coal mill, and particularly relates to a system and method for adjusting the maintenance interval of a coal mill based on stone coal, which comprises: a data acquisition unit for acquiring raw coal gangue content data, stone coal real-time yield data and coal mill operation data; a data processing unit for determining a coal mill maintenance coefficient according to the raw coal gangue content data, the stone coal real-time yield data and the coal mill operation data; and a control unit for adjusting the maintenance interval of the coal mill according to the coal mill maintenance coefficient. The present application acquires and determines the maintenance coefficient of the coal mill according to the raw coal gangue content data, the stone coal real-time yield data and the coal mill operation data, adjusts the maintenance interval of the coal mill by comprehensively considering the influencing factors in the whole process of stone coal production, and thus ensures the normal operation of the coal mill and reduces the problem of production efficiency reduction caused by equipment failure.

Description

Technical Field

[0001] This invention relates to the field of coal mill technology, and more specifically, to a system and method for adjusting the maintenance interval of a coal mill based on the amount of gravel and coal. Background Technology

[0002] Coal slag is a byproduct of the raw coal crushing and pulverizing process in pulverized coal boilers and needs to be collected and transported regularly. Currently, personnel are on duty to monitor the hopper volume and manually haul it out of the coal mill area (which has limited space), then transfer it to the coal yard via forklift. This process requires three workers to work in shifts, resulting in high labor costs. The on-site dust and noise hazards affect worker health, and shift work carries high safety risks. Nighttime work also poses a risk of mechanical injury.

[0003] Meanwhile, the production of coke and gravel causes significant wear and tear on the coal mill, requiring timely equipment inspections based on actual conditions to ensure safe operation. However, manual real-time inspections are labor-intensive and prone to errors. Therefore, automatically determining inspection intervals based on the coal mill's operating conditions to ensure normal equipment operation has become a new trend in technological development. Summary of the Invention

[0004] In view of this, the present invention proposes a system and method for adjusting the maintenance interval of a coal mill based on coal stones, mainly to solve the problem of how to automatically determine the inspection interval according to the operating status of the coal mill to ensure the normal operation of the equipment.

[0005] In one aspect, the present invention proposes a system for adjusting the maintenance interval of a coal mill based on coke, the system comprising:

[0006] The data acquisition unit collects data on raw coal gangue content, real-time output data of coking coal, and coal mill operation data.

[0007] The data processing unit is used to determine the coal mill maintenance coefficient based on the raw coal gangue content data, real-time stone coal production data, and coal mill operation data.

[0008] The control unit is used to adjust the coal mill maintenance interval according to the coal mill maintenance coefficient.

[0009] The operating data of the coal mill includes: real-time operating power and real-time vibration intensity.

[0010] In some embodiments of this application, when the data processing unit determines the coal mill maintenance coefficient based on raw coal gangue content data, real-time stone coal production data, and coal mill operating data, it includes:

[0011] The initial maintenance coefficient A of the coal mill is preset, and A = 1;

[0012] Obtain raw coal gangue content data B0;

[0013] The first preset raw coal gangue content value B1, the second preset raw coal gangue content value B2, the third preset raw coal gangue content value B3, and the fourth preset raw coal gangue content value B4 are preset, and B1 > B2 > B3 > B4; the first preset adjustment coefficient b1, the second preset adjustment coefficient b2, the third preset adjustment coefficient b3, and the fourth preset adjustment coefficient b4 are preset, and 0.9 < b1 < 1 < b2 < b3 < b4 < 1.1;

[0014] When B0≥B1, the first preset adjustment coefficient b1 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b1.

[0015] When B1>B0≥B2, the second preset adjustment coefficient b2 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b2.

[0016] When B2>B0≥B3, the third preset adjustment coefficient b3 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b3.

[0017] When B3>B0≥B4, the fourth preset adjustment coefficient b4 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b4.

[0018] In some embodiments of this application, after adjusting the initial maintenance coefficient A of the coal mill by selecting the i-th preset adjustment coefficient bi, i = 1, 2, 3, 4, and obtaining the adjusted initial maintenance coefficient A*bi of the coal mill, the method further includes:

[0019] Obtain real-time coal production data C0;

[0020] The first preset real-time output value of stone coal is set as C1, the second preset real-time output value of stone coal is set as C2, the third preset real-time output value of stone coal is set as C3, and the fourth preset real-time output value of stone coal is set as C4, and C1 > C2 > C3 > C4; the first preset adjustment coefficient is set as c1, the second preset adjustment coefficient is set as c2, the third preset adjustment coefficient is set as c3, and the fourth preset adjustment coefficient is set as c4, and 0.9 < c1 < 1 < c2 < c3 < c4 < 1.1;

[0021] When C0≥C1, the first preset adjustment coefficient c1 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the coal mill after the adjustment. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c1.

[0022] When C1>C0≥C2, the second preset adjustment coefficient c2 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the coal mill after the adjustment. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c2.

[0023] When C2>C0≥C3, the third preset adjustment coefficient c3 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the adjusted coal mill. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c3.

[0024] When C3>C0≥C4, the fourth preset adjustment coefficient c4 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the coal mill after the adjustment. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c4.

[0025] In some embodiments of this application, after selecting the i-th preset adjustment coefficient ci to perform a secondary adjustment on the adjusted initial maintenance coefficient A*bi of the coal mill, i = 1, 2, 3, 4, and obtaining the secondary adjusted initial maintenance coefficient A*bi*ci of the coal mill, the method further includes:

[0026] The operation adjustment coefficient E is preset, and E = 1;

[0027] Obtain the real-time operating power H0 of the coal mill;

[0028] The first preset real-time operating power value H1, the second preset real-time operating power value H2, the third preset real-time operating power value H3, and the fourth preset real-time operating power value H4 are preset, and H1 > H2 > H3 > H4; the first preset adjustment coefficient h1, the second preset adjustment coefficient h2, the third preset adjustment coefficient h3, and the fourth preset adjustment coefficient h4 are preset, and 0.9 < h1 < 1 < h2 < h3 < h4 < 1.1;

[0029] When H0≥H1, the first preset adjustment coefficient h1 is selected to adjust the operating adjustment coefficient E, and the adjusted operating adjustment coefficient is E*h1;

[0030] When H1>H0≥H2, the second preset adjustment coefficient h2 is selected to adjust the operating adjustment coefficient E. The adjusted operating adjustment coefficient is E*h2.

[0031] When H2>H0≥H3, the third preset adjustment coefficient h3 is selected to adjust the operating adjustment coefficient E. The adjusted operating adjustment coefficient is E*h3.

[0032] When H3>H0≥H4, the fourth preset adjustment coefficient h4 is selected to adjust the operating adjustment coefficient E. The adjusted operating adjustment coefficient is E*h4.

[0033] In some embodiments of this application, after selecting the i-th preset adjustment coefficient hi to adjust the operating adjustment coefficient E, i = 1, 2, 3, 4, and obtaining the adjusted operating adjustment coefficient E*hi, the method further includes:

[0034] Obtain the real-time vibration intensity F0 of the coal mill;

[0035] The first preset real-time vibration intensity value F1, the second preset real-time vibration intensity value F2, the third preset real-time vibration intensity value F3, and the fourth preset real-time vibration intensity value F4 are preset, and F1 > F2 > F3 > F4; the first preset adjustment coefficient f1, the second preset adjustment coefficient f2, the third preset adjustment coefficient f3, and the fourth preset adjustment coefficient f4 are preset, and 0.9 < f1 < 1 < f2 < f3 < f4 < 1.1;

[0036] When F0≥F1, the first preset adjustment coefficient f1 is selected to perform a second adjustment on the adjusted operation adjustment coefficient E*hi. The operation adjustment coefficient after the second adjustment is E*hi*f1.

[0037] When F1>F0≥F2, the second preset adjustment coefficient f2 is selected to perform a second adjustment on the adjusted operation adjustment coefficient E*hi. The operation adjustment coefficient after the second adjustment is E*hi*f2.

[0038] When F2>F0≥F3, the third preset adjustment coefficient f3 is selected to perform a second adjustment on the adjusted operation adjustment coefficient E*hi. The operation adjustment coefficient after the second adjustment is E*hi*f3.

[0039] When F3>F0≥F4, the fourth preset adjustment coefficient f4 is selected to perform a second adjustment on the adjusted operating adjustment coefficient E*hi. The operating adjustment coefficient after the second adjustment is E*hi*f4.

[0040] In some embodiments of this application, after selecting the i-th preset adjustment coefficient fi to perform a secondary adjustment on the adjusted operating adjustment coefficient E*hi, i = 1, 2, 3, 4, and obtaining the secondary adjusted operating adjustment coefficient E*hi*fi, the method further includes:

[0041] The adjusted operating coefficient E*hi*fi after the second adjustment is taken as the final operating adjustment coefficient Ea;

[0042] Based on the final operating condition bonus coefficient Ea, the initial maintenance coefficient A*bi*ci of the coal mill after the second adjustment is adjusted three times, and the initial maintenance coefficient of the coal mill after the three adjustments is A*bi*ci*Ea.

[0043] The initial maintenance coefficient of the coal mill after three adjustments, A*bi*ci*Ea, is taken as the final maintenance coefficient Ab of the coal mill.

[0044] In some embodiments of this application, when the control unit adjusts the coal mill maintenance interval according to the coal mill maintenance coefficient, it includes:

[0045] Obtain the historical maintenance interval K of the coal mill, and use the historical maintenance interval K of the coal mill as the preset maintenance interval Ka of the coal mill;

[0046] The pre-set coal mill maintenance interval Ka is adjusted based on the final maintenance coefficient Ab of the coal mill. The adjusted coal mill maintenance interval is Ka*Ab.

[0047] In another aspect, this invention proposes a method for adjusting the maintenance interval of a coal mill based on coke, the method comprising:

[0048] Collect data on raw coal gangue content, real-time output data of coking coal, and coal mill operation data;

[0049] The maintenance coefficient of the coal mill is determined based on the raw coal gangue content data, real-time stone coal production data, and coal mill operation data.

[0050] Adjust the coal mill maintenance interval according to the coal mill maintenance coefficient;

[0051] The coal mill operating data includes: real-time operating power and real-time vibration intensity.

[0052] Compared with the prior art, the present invention has the following beneficial effects: The present invention first collects raw coal gangue content data, real-time stone coal production data, and coal mill operation data through a data acquisition unit. By determining the maintenance coefficient of the coal mill based on the raw coal gangue content data, real-time stone coal production data, and coal mill operation data, and by comprehensively considering the influencing factors of the entire process of stone coal production through raw coal data, coal mill operation data, and stone coal production data, the maintenance interval of the coal mill is adjusted, thereby ensuring the normal operation of the coal mill and reducing the problem of production downtime and reduced production efficiency caused by equipment failure. Attached Figure Description

[0053] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. In the drawings:

[0054] Figure 1 A functional block diagram of a system for adjusting the maintenance interval of a coal mill based on coke and gravel is provided in an embodiment of the present invention.

[0055] Figure 2 A flowchart illustrating a method for adjusting the maintenance interval of a coal mill based on gravel coal, provided as an embodiment of the present invention. Detailed Implementation

[0056] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0057] See Figure 1 As shown, this embodiment provides a system for adjusting the maintenance interval of a coal mill based on coke. The system includes:

[0058] The data acquisition unit collects data on raw coal gangue content, real-time output data of coking coal, and coal mill operation data.

[0059] The data processing unit is used to determine the coal mill maintenance coefficient based on the raw coal gangue content data, real-time stone coal production data, and coal mill operation data.

[0060] The control unit is used to adjust the coal mill maintenance interval according to the coal mill maintenance coefficient.

[0061] The operating data of the coal mill includes: real-time operating power and real-time vibration intensity.

[0062] It is understood that in this embodiment, process data of the coal mill producing stone coal is obtained, and the maintenance coefficient of the coal mill is determined based on the process data. Then, the maintenance interval of the coal mill is adjusted according to the maintenance coefficient. This achieves the goal of judging the wear degree of the coal mill through process data and adjusting the maintenance interval according to the wear degree to avoid equipment failure.

[0063] In some embodiments of this application, when the data processing unit determines the coal mill maintenance coefficient based on raw coal gangue content data, real-time stone coal production data, and coal mill operating data, it includes:

[0064] The initial maintenance coefficient A of the coal mill is preset, and A = 1;

[0065] Obtain raw coal gangue content data B0;

[0066] The first preset raw coal gangue content value B1, the second preset raw coal gangue content value B2, the third preset raw coal gangue content value B3, and the fourth preset raw coal gangue content value B4 are preset, and B1 > B2 > B3 > B4; the first preset adjustment coefficient b1, the second preset adjustment coefficient b2, the third preset adjustment coefficient b3, and the fourth preset adjustment coefficient b4 are preset, and 0.9 < b1 < 1 < b2 < b3 < b4 < 1.1;

[0067] When B0≥B1, the first preset adjustment coefficient b1 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b1.

[0068] When B1>B0≥B2, the second preset adjustment coefficient b2 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b2.

[0069] When B2>B0≥B3, the third preset adjustment coefficient b3 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b3.

[0070] When B3>B0≥B4, the fourth preset adjustment coefficient b4 is selected to adjust the initial maintenance coefficient A of the coal mill. The adjusted initial maintenance coefficient of the coal mill is A*b4.

[0071] In some embodiments of this application, after adjusting the initial maintenance coefficient A of the coal mill by selecting the i-th preset adjustment coefficient bi, i = 1, 2, 3, 4, and obtaining the adjusted initial maintenance coefficient A*bi of the coal mill, the method further includes:

[0072] Obtain real-time coal production data C0;

[0073] The first preset real-time output value of stone coal is set as C1, the second preset real-time output value of stone coal is set as C2, the third preset real-time output value of stone coal is set as C3, and the fourth preset real-time output value of stone coal is set as C4, and C1 > C2 > C3 > C4; the first preset adjustment coefficient is set as c1, the second preset adjustment coefficient is set as c2, the third preset adjustment coefficient is set as c3, and the fourth preset adjustment coefficient is set as c4, and 0.9 < c1 < 1 < c2 < c3 < c4 < 1.1;

[0074] When C0≥C1, the first preset adjustment coefficient c1 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the coal mill after the adjustment. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c1.

[0075] When C1>C0≥C2, the second preset adjustment coefficient c2 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the coal mill after the adjustment. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c2.

[0076] When C2>C0≥C3, the third preset adjustment coefficient c3 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the adjusted coal mill. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c3.

[0077] When C3>C0≥C4, the fourth preset adjustment coefficient c4 is selected to make a second adjustment to the initial maintenance coefficient A*bi of the coal mill after the adjustment. The initial maintenance coefficient of the coal mill after the second adjustment is A*bi*c4.

[0078] It is understandable that in this embodiment, the initial maintenance coefficient of the coal mill is determined by obtaining data on the content of gangue in raw coal and the real-time output of stone coal. The higher the gangue content in the raw coal, the greater the wear on the coal mill; the higher the actual output of stone coal, the greater the wear on the coal mill. This shortens the maintenance interval of the coal mill to avoid equipment failure.

[0079] In some embodiments of this application, after selecting the i-th preset adjustment coefficient ci to perform a secondary adjustment on the adjusted initial maintenance coefficient A*bi of the coal mill, i = 1, 2, 3, 4, and obtaining the secondary adjusted initial maintenance coefficient A*bi*ci of the coal mill, the method further includes:

[0080] The operation adjustment coefficient E is preset, and E = 1;

[0081] Obtain the real-time operating power H0 of the coal mill;

[0082] The first preset real-time operating power value H1, the second preset real-time operating power value H2, the third preset real-time operating power value H3, and the fourth preset real-time operating power value H4 are preset, and H1 > H2 > H3 > H4; the first preset adjustment coefficient h1, the second preset adjustment coefficient h2, the third preset adjustment coefficient h3, and the fourth preset adjustment coefficient h4 are preset, and 0.9 < h1 < 1 < h2 < h3 < h4 < 1.1;

[0083] When H0≥H1, the first preset adjustment coefficient h1 is selected to adjust the operating adjustment coefficient E, and the adjusted operating adjustment coefficient is E*h1;

[0084] When H1>H0≥H2, the second preset adjustment coefficient h2 is selected to adjust the operating adjustment coefficient E. The adjusted operating adjustment coefficient is E*h2.

[0085] When H2>H0≥H3, the third preset adjustment coefficient h3 is selected to adjust the operating adjustment coefficient E. The adjusted operating adjustment coefficient is E*h3.

[0086] When H3>H0≥H4, the fourth preset adjustment coefficient h4 is selected to adjust the operating adjustment coefficient E. The adjusted operating adjustment coefficient is E*h4.

[0087] In some embodiments of this application, after selecting the i-th preset adjustment coefficient hi to adjust the operating adjustment coefficient E, i = 1, 2, 3, 4, and obtaining the adjusted operating adjustment coefficient E*hi, the method further includes:

[0088] Obtain the real-time vibration intensity F0 of the coal mill;

[0089] The first preset real-time vibration intensity value F1, the second preset real-time vibration intensity value F2, the third preset real-time vibration intensity value F3, and the fourth preset real-time vibration intensity value F4 are preset, and F1 > F2 > F3 > F4; the first preset adjustment coefficient f1, the second preset adjustment coefficient f2, the third preset adjustment coefficient f3, and the fourth preset adjustment coefficient f4 are preset, and 0.9 < f1 < 1 < f2 < f3 < f4 < 1.1;

[0090] When F0≥F1, the first preset adjustment coefficient f1 is selected to perform a second adjustment on the adjusted operation adjustment coefficient E*hi. The operation adjustment coefficient after the second adjustment is E*hi*f1.

[0091] When F1>F0≥F2, the second preset adjustment coefficient f2 is selected to perform a second adjustment on the adjusted operation adjustment coefficient E*hi. The operation adjustment coefficient after the second adjustment is E*hi*f2.

[0092] When F2>F0≥F3, the third preset adjustment coefficient f3 is selected to perform a second adjustment on the adjusted operation adjustment coefficient E*hi. The operation adjustment coefficient after the second adjustment is E*hi*f3.

[0093] When F3>F0≥F4, the fourth preset adjustment coefficient f4 is selected to perform a second adjustment on the adjusted operating adjustment coefficient E*hi. The operating adjustment coefficient after the second adjustment is E*hi*f4.

[0094] In some embodiments of this application, after selecting the i-th preset adjustment coefficient fi to perform a secondary adjustment on the adjusted operating adjustment coefficient E*hi, i = 1, 2, 3, 4, and obtaining the secondary adjusted operating adjustment coefficient E*hi*fi, the method further includes:

[0095] The adjusted operating coefficient E*hi*fi after the second adjustment is taken as the final operating adjustment coefficient Ea;

[0096] Based on the final operating adjustment coefficient Ea, the initial maintenance coefficient A*bi*ci of the coal mill after the second adjustment is adjusted a third time, and the initial maintenance coefficient of the coal mill after the third adjustment is A*bi*ci*Ea.

[0097] The initial maintenance coefficient of the coal mill after three adjustments, A*bi*ci*Ea, is taken as the final maintenance coefficient Ab of the coal mill.

[0098] It is understandable that in this embodiment, by obtaining the real-time power and real-time vibration intensity of the coal mill, the operating status of the coal mill can be intuitively understood. The higher the power, the greater the vibration intensity, and the more severe the wear. Therefore, it is necessary to shorten the maintenance time and ensure the normal operation of the equipment.

[0099] In some embodiments of this application, when the control unit adjusts the coal mill maintenance interval according to the coal mill maintenance coefficient, it includes:

[0100] Obtain the historical maintenance interval K of the coal mill, and use the historical maintenance interval K of the coal mill as the preset maintenance interval Ka of the coal mill;

[0101] The pre-set coal mill maintenance interval Ka is adjusted based on the final maintenance coefficient Ab of the coal mill. The adjusted coal mill maintenance interval is Ka*Ab.

[0102] See Figure 2 As shown, in another aspect, the present invention proposes a method for adjusting the maintenance interval of a coal mill based on coke, the method comprising:

[0103] S101: Collect data on raw coal gangue content, real-time output data of gravelly coal, and coal mill operation data;

[0104] S102: Determine the coal mill maintenance coefficient based on raw coal gangue content data, real-time stone coal production data, and coal mill operation data;

[0105] S103: Adjust the coal mill maintenance interval according to the coal mill maintenance coefficient;

[0106] The coal mill operating data includes: real-time operating power and real-time vibration intensity.

[0107] It is understandable that in this embodiment, by collecting data on raw coal gangue content, real-time stone coal production, and coal mill operation data, the maintenance coefficient of the coal mill is determined based on the raw coal gangue content data, real-time stone coal production data, and coal mill operation data. By comprehensively considering the influencing factors of the entire process of stone coal production through raw coal data, coal mill operation data, and stone coal production data, the maintenance interval of the coal mill is adjusted, thereby ensuring the normal operation of the coal mill and reducing the problem of production downtime and reduced production efficiency caused by equipment failure.

[0108] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0109] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0110] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0111] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A system for adjusting the maintenance interval of a coal mill based on stone coal, characterized in that, The method comprises the following steps: a data acquisition unit acquires raw coal gangue content data, stone coal real-time yield data and mill operation data; a data processing unit is used to determine a mill maintenance coefficient according to the raw coal gangue content data, stone coal real-time yield data and mill operation data; the data processing unit comprises: an initially set mill maintenance coefficient A is set, and A=1; raw coal gangue content data B0 is acquired; a first preset raw coal gangue content value B1, a second preset raw coal gangue content value B2, a third preset raw coal gangue content value B3 and a fourth preset raw coal gangue content value B4 are set in advance, and B1>B2>B3>B4; a first preset adjustment coefficient b1, a second preset adjustment coefficient b2, a third preset adjustment coefficient b3 and a fourth preset adjustment coefficient b4 are set in advance, and 0.9<b1<1<b2<b3<b4<1.1; when B0≥B1, the first preset adjustment coefficient b1 is selected to adjust the initially set mill maintenance coefficient A, and the adjusted initially set mill maintenance coefficient is A*b1; when B1>B0≥B2, the second preset adjustment coefficient b2 is selected to adjust the initially set mill maintenance coefficient A, and the adjusted initially set mill maintenance coefficient is A*b2; when B2>B0≥B3, the third preset adjustment coefficient b3 is selected to adjust the initially set mill maintenance coefficient A, and the adjusted initially set mill maintenance coefficient is A*b3; when B3>B0≥B4, the fourth preset adjustment coefficient b4 is selected to adjust the initially set mill maintenance coefficient A, and the adjusted initially set mill maintenance coefficient is A*b4; stone coal real-time yield data C0 is acquired; a first preset stone coal real-time yield value C1, a second preset stone coal real-time yield value C2, a third preset stone coal real-time yield value C3 and a fourth preset stone coal real-time yield value C4 are set in advance, and C1>C2>C3>C4; a first preset adjustment coefficient c1, a second preset adjustment coefficient c2, a third preset adjustment coefficient c3 and a fourth preset adjustment coefficient c4 are set in advance, and 0.9<c1<1<c2<c3<c4<1.1; when C0≥C1, the first preset adjustment coefficient c1 is selected to adjust the adjusted initially set mill maintenance coefficient A*bi for the second time, and the second-time adjusted initially set mill maintenance coefficient is A*bi*c1; when C1>C0≥C2, the second preset adjustment coefficient c2 is selected to adjust the adjusted initially set mill maintenance coefficient A*bi for the second time, and the second-time adjusted initially set mill maintenance coefficient is A*bi*c2; when C2>C0≥C3, the third preset adjustment coefficient c3 is selected to adjust the adjusted initially set mill maintenance coefficient A*bi for the second time, and the second-time adjusted initially set mill maintenance coefficient is A*bi*c3; when C3>C0≥C4, the fourth preset adjustment coefficient c4 is selected to adjust the adjusted initially set mill maintenance coefficient A*bi for the second time, and the second-time adjusted initially set mill maintenance coefficient is A*bi*c4; a control unit is used to adjust a mill maintenance interval according to the mill maintenance coefficient; the mill operation data comprises real-time operation power and real-time vibration intensity.

2. The system for adjusting the maintenance interval of a coal mill based on stone coal according to claim 1, characterized in that, After the selected i preset adjustment coefficient ci is used to adjust the adjusted mill initial maintenance coefficient A*bi, i=1, 2, 3, 4, the second adjusted mill initial maintenance coefficient A*bi*ci is obtained, and the method further comprises the following steps: An operation adjustment coefficient E is preset, and E=1; Real-time operation power H0 of the mill is obtained; A first preset real-time operation power value H1, a second preset real-time operation power value H2, a third preset real-time operation power value H3, and a fourth preset real-time operation power value H4 are preset, and H1>H2>H3>H4; a first preset adjustment coefficient h1, a second preset adjustment coefficient h2, a third preset adjustment coefficient h3, and a fourth preset adjustment coefficient h4 are preset, and 0.9<h1<1<h2<h3<h4<1.1; When H0≥H1, the first preset adjustment coefficient h1 is selected to adjust the operation adjustment coefficient E, and the adjusted operation adjustment coefficient is E*h1; When H1>H0≥H2, the second preset adjustment coefficient h2 is selected to adjust the operation adjustment coefficient E, and the adjusted operation adjustment coefficient is E*h2; When H2>H0≥H3, the third preset adjustment coefficient h3 is selected to adjust the operation adjustment coefficient E, and the adjusted operation adjustment coefficient is E*h3; When H3>H0≥H4, the fourth preset adjustment coefficient h4 is selected to adjust the operation adjustment coefficient E, and the adjusted operation adjustment coefficient is E*h4.

3. The system for adjusting the maintenance interval of a coal mill based on stone coal according to claim 2, characterized in that, After the selected i preset adjustment coefficient hi is used to adjust the operation adjustment coefficient E, i=1, 2, 3, 4, the adjusted operation adjustment coefficient E*hi is obtained, and the method further comprises the following steps: Real-time vibration intensity F0 of the mill is obtained; A first preset real-time vibration intensity value F1, a second preset real-time vibration intensity value F2, a third preset real-time vibration intensity value F3, and a fourth preset real-time vibration intensity value F4 are preset, and F1>F2>F3>F4; a first preset adjustment coefficient f1, a second preset adjustment coefficient f2, a third preset adjustment coefficient f3, and a fourth preset adjustment coefficient f4 are preset, and 0.9<f1<1<f2<f3<f4<1.1; When F0≥F1, the first preset adjustment coefficient f1 is selected to adjust the adjusted operation adjustment coefficient E*hi, and the second adjusted operation adjustment coefficient is E*hi*f1; When F1>F0≥F2, the second preset adjustment coefficient f2 is selected to adjust the adjusted operation adjustment coefficient E*hi, and the second adjusted operation adjustment coefficient is E*hi*f2; When F2>F0≥F3, the third preset adjustment coefficient f3 is selected to adjust the adjusted operation adjustment coefficient E*hi, and the second adjusted operation adjustment coefficient is E*hi*f3; When F3>F0≥F4, the fourth preset adjustment coefficient f4 is selected to adjust the adjusted operation adjustment coefficient E*hi, and the second adjusted operation adjustment coefficient is E*hi*f4.

4. The system for adjusting the maintenance interval of a coal mill based on stone coal according to claim 3, characterized in that, After the selected i preset adjustment coefficient fi is used to make secondary adjustment on the adjusted operation adjustment coefficient E*h i, i=1, 2, 3, 4, the secondary adjusted operation adjustment coefficient E*h i*fi is obtained, and the method further comprises: The secondary adjusted operation adjustment coefficient E*h i*fi is used as the final operation adjustment coefficient Ea; The secondary adjusted operation adjustment coefficient E*h i*fi is used as the final operation adjustment coefficient Ea; The secondary adjusted operation adjustment coefficient E*h i*fi is used as the final operation adjustment coefficient Ea; 5. The system for adjusting the maintenance interval of a coal mill based on stone coal according to claim 4, characterized in that, When the control unit adjusts the coal mill maintenance interval according to the coal mill maintenance coefficient, the method comprises: Obtaining the historical coal mill maintenance interval K, and taking the historical coal mill maintenance interval K as the preset coal mill maintenance interval Ka; Adjusting the preset coal mill maintenance interval Ka according to the final coal mill maintenance coefficient Ab, and obtaining the adjusted coal mill maintenance interval Ka*Ab.

6. A method of adjusting the overhaul interval of a coal mill based on stone coal, characterized in that, The method is applied to the system for adjusting the coal mill maintenance interval based on the stone coal, and comprises: Collecting the raw coal and gangue content data, the stone coal real-time yield data and the coal mill operation data; Determining the coal mill maintenance coefficient according to the raw coal and gangue content data, the stone coal real-time yield data and the coal mill operation data, and the method comprises: Pre-setting the initial coal mill maintenance coefficient A, and A=1; Obtaining the raw coal and gangue content data B0; Pre-setting the first preset raw coal and gangue content value B1, the second preset raw coal and gangue content value B2, the third preset raw coal and gangue content value B3 and the fourth preset raw coal and gangue content value B4, and B1>B2>B3>B4; pre-setting the first preset adjustment coefficient b1, the second preset adjustment coefficient b2, the third preset adjustment coefficient b3 and the fourth preset adjustment coefficient b4, and 0.9<b1<1<b2<b3<b4<1.1; When B0≥B1, the first preset adjustment coefficient b1 is selected to adjust the initial coal mill maintenance coefficient A, and the adjusted initial coal mill maintenance coefficient is A*b1; When B1>B0≥B2, the second preset adjustment coefficient b2 is selected to adjust the initial coal mill maintenance coefficient A, and the adjusted initial coal mill maintenance coefficient is A*b2; When B2>B0≥B3, the third preset adjustment coefficient b3 is selected to adjust the initial coal mill maintenance coefficient A, and the adjusted initial coal mill maintenance coefficient is A*b3; When B3>B0≥B4, the fourth preset adjustment coefficient b4 is selected to adjust the initial coal mill maintenance coefficient A, and the adjusted initial coal mill maintenance coefficient is A*b4; and obtaining the stone coal real-time yield data C0. The first preset stone coal real-time yield value C1, the second preset stone coal real-time yield value C2, the third preset stone coal real-time yield value C3, and the fourth preset stone coal real-time yield value C4 are preset, and C1>C2>C3>C4; the first preset adjustment coefficient c1, the second preset adjustment coefficient c2, the third preset adjustment coefficient c3, and the fourth preset adjustment coefficient c4 are preset, and 0.9 When C0≥C1, the first preset adjustment coefficient c1 is selected to perform secondary adjustment on the adjusted mill initial maintenance coefficient A*b1, and the mill initial maintenance coefficient after secondary adjustment is A*b1*c1; When C1>C0≥C2, the second preset adjustment coefficient c2 is selected to perform secondary adjustment on the adjusted mill initial maintenance coefficient A*b1, and the mill initial maintenance coefficient after secondary adjustment is A*b1*c2; When C2>C0≥C3, the third preset adjustment coefficient c3 is selected to perform secondary adjustment on the adjusted mill initial maintenance coefficient A*b1, and the mill initial maintenance coefficient after secondary adjustment is A*b1*c3; When C3>C0≥C4, the fourth preset adjustment coefficient c4 is selected to perform secondary adjustment on the adjusted mill initial maintenance coefficient A*b1, and the mill initial maintenance coefficient after secondary adjustment is A*b1*c4; The mill maintenance interval is adjusted according to the mill maintenance coefficient; The mill operation data includes real-time operation power and real-time vibration intensity.

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