A coking coal expansion pressure detection system based on big data

Abstract

The invention relates to the technical field of coking coal, and is used to solve the problem that it is difficult to detect and analyze the generated expansion pressure from multiple angles, it is difficult to accurately detect the abnormal expansion pressure generated in the coking process, and therefore it is impossible to perform timely feedback control on the abnormal expansion pressure. In particular, a coking coal expansion pressure detection system based on big data is disclosed, comprising a server, wherein the server is communicatively connected with a data acquisition unit, a direct detection and analysis unit, an indirect detection and analysis unit, a comprehensive measurement and analysis unit, an early warning feedback unit, a display terminal and a coking control platform; the invention comprehensively detects and analyzes the generated abnormal expansion pressure from multiple angles by means of coordinate model analysis, data statistical calculation and numerical comparison, and adopts the methods of union operation, data integration and early warning control to realize accurate detection and analysis and timely feedback control of the expansion pressure generated under the coking state, thereby ensuring the stable operation of the coking furnace.

Description

Technical Field

[0001] The present invention relates to the technical field of coking coal, and in particular to a coking coal expansion pressure detection system based on big data. Background Art

[0002] Coking coal is a kind of bituminous coal. It is used to have a certain degree of cohesiveness and can form coke under the coking conditions of chamber coke ovens. The raw coal used to produce a certain quality of coke is collectively called coking coal. Coking coal is widely used in heavy industrial sectors such as metallurgy and coal chemical industry, as well as some industries such as electricity and city gas, and has an important impact on the long-term development of the country's entire industrial system and people's lives.

[0003] However, in the production of coking coal, due to the different qualities of the raw coal, different degrees of expansion pressure will be generated in the coke oven during the coking process. When the expansion pressure applied to the coke oven wall is too high, the risk of damage to the coke oven will increase, which will cause immeasurable coking accidents. Therefore, it is very important to clearly determine and analyze the expansion pressure state of coking coal.

[0004] The existing method of detecting expansion pressure in the production of coking coal makes it difficult to detect and analyze the expansion pressure generated from multiple angles, and it is difficult to accurately detect the abnormal expansion pressure generated during the coking process. Therefore, it is impossible to conduct timely feedback control on the abnormal expansion pressure, and it is even more impossible to ensure the stable operation of the coking furnace;

[0005] In order to solve the above defects, a technical solution is now provided. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that it is difficult to detect and analyze the expansion pressure generated from multiple angles in the existing method of detecting expansion pressure in the production of coking coal, and it is difficult to accurately detect the abnormal expansion pressure generated in the coking process, so it is impossible to timely feedback control the abnormal expansion pressure, and it is even more impossible to ensure the stable operation of the coking furnace. Through coordinate model analysis, data statistical calculation and numerical comparison, a comprehensive detection and analysis of the abnormal expansion pressure generated from multiple angles is realized, and by using data assignment, formula analysis and gradient threshold comparison analysis, a clear analysis of the dangerous degree of the expansion pressure generated by coking coal is made from different levels. By using union operation, data integration and early warning control, accurate detection and analysis of the expansion pressure of coking coal under coking conditions and timely feedback control are realized, thereby reducing the destructiveness of the coking furnace and ensuring the stable operation of the coking furnace. A coking coal expansion pressure detection system based on big data is proposed.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A coking coal expansion pressure detection system based on big data, comprising a server, wherein the server is communicatively connected with a data acquisition unit, a direct detection and analysis unit, an indirect detection and analysis unit, a comprehensive determination and analysis unit, an early warning feedback unit, a display terminal and a coking control platform;

[0009] The data acquisition unit is used to collect the operation status information of the coke oven and the coking status information of the coking coal within a unit time, and send them to the direct detection and analysis unit and the indirect detection and analysis unit respectively;

[0010] The direct detection and analysis unit is used to receive the operation status information of the coke oven and directly analyze and process the expansion pressure status, thereby generating a coke oven pressure expansion slight danger signal, a coke oven pressure expansion medium danger signal, and a coke oven pressure expansion high danger signal, and sending them all to the comprehensive measurement and analysis unit;

[0011] The indirect detection and analysis unit is used to receive the coking state information of the coking coal and perform indirect analysis and processing on the expansion pressure state, thereby generating a coking coal pressure expansion slight danger signal, a coking coal pressure expansion medium danger signal, and a coking coal pressure expansion high danger signal, and sending them all to the comprehensive measurement and analysis unit;

[0012] The comprehensive measurement and analysis unit is used to perform comprehensive data analysis and processing on the received coke oven pressure expansion feedback type determination signal and the coking coal pressure expansion feedback type determination signal, thereby generating a differential lower warning feedback signal, a differential level warning feedback signal and a differential upper warning feedback signal, and sending them all to the warning feedback unit;

[0013] The early warning feedback unit is used to receive early warning feedback signals of various levels and perform early warning analysis and processing, and accordingly generate various types of control instructions and send them to the display terminal for display and explanation.

[0014] Further, the specific operation steps of directly analyzing and processing the expansion pressure state are as follows:

[0015] The central pressure value of the coke oven per unit time is obtained in real time, and the central pressure state is analyzed and processed to obtain a signal showing a large central pressure, a signal showing a normal central pressure, and a signal showing a small central pressure;

[0016] Obtain the furnace wall pressure value of the coke oven per unit time in real time, and analyze and process the peripheral pressure state, thereby obtaining a signal showing a large outer ring pressure, a signal showing a normal outer ring pressure, and a signal showing a small outer ring pressure;

[0017] The center pressure performance type signal and the outer ring pressure performance type signal are respectively converted into signs, and the center pressure performance larger signal, the center pressure performance general signal, and the center pressure performance smaller signal are calibrated as z1, z2, and z3, respectively, and the outer ring pressure performance larger signal, the outer ring pressure performance general signal, and the outer ring pressure performance smaller signal are calibrated as c1, c2, and c3, respectively;

[0018] The central pressure performance type signal and the outer circle pressure performance type signal are integrated and analyzed. When the symbol values ​​z1 and c1 are detected at the same time, a high danger signal of coke oven pressure expansion is generated. When the symbol values ​​z3 and c3 are detected at the same time, a slight danger signal of coke oven pressure expansion is generated. In other cases, a moderate danger signal of coke oven pressure expansion is generated.

[0019] Furthermore, the specific operation steps of the center pressure state analysis and processing are as follows:

[0020] The central pressure value of each time stage in the coke oven per unit time is obtained in real time, with the time stage value as the horizontal coordinate and the central pressure value as the vertical coordinate, and a first pressure dynamic coordinate system is constructed accordingly, and the central pressure value of the coke oven at each time stage is plotted on the first pressure dynamic coordinate system by drawing points and connecting lines, thereby obtaining a central pressure curve;

[0021] The central pressure value of each time stage is analyzed by mean value, and the central pressure value is calibrated as zp i , and i = 1, 2, 3...n, according to the formula avg = (zp1 + zp2 + ... + zp n )÷n, obtain the mean center pressure value avg, and convert the mean center pressure value into a first reference line and draw it on the first pressure dynamic coordinate system, that is, the first reference line is Y=avg;

[0022] Capture each peak value appearing on the central pressure curve, and compare and analyze each peak value with the first reference line. When the peak value is above the first reference line, a signal indicating that the expansion pressure in the furnace is too high is generated. When the peak value is on the first reference line, a signal indicating that the expansion pressure in the furnace is normal is generated. When the peak value is below the first reference line, a signal indicating that the expansion pressure in the furnace is too low is generated.

[0023] The sum of the signals of high expansion pressure in the furnace, normal expansion pressure in the furnace and low expansion pressure in the furnace generated per unit time are counted respectively, and calibrated as sum1, sum2 and sum3 respectively. If sum1≥sum2>sum3 is satisfied, a signal of large central pressure performance is generated; if sum2>sum1>sum3 is satisfied, a signal of large central pressure performance is generated; if sum3>sum2>sum1 is satisfied, a signal of small central pressure performance is generated.

[0024] Furthermore, the specific operation steps of the peripheral pressure state analysis and processing are as follows:

[0025] The furnace wall of the coke oven is divided into k areas, where k is a positive integer, and the furnace wall pressure value of each area at each time stage is obtained in real time;

[0026] Set the pressure gradient reference intervals QZ1, QZ2 and QZ3 for the furnace wall pressure value, and substitute the furnace wall pressure value into the preset pressure gradient reference intervals QZ1, QZ2 and QZ3 for comparative analysis;

[0027] When the furnace wall pressure value is within the pressure gradient reference interval QZ1, a furnace wall expansion pressure low signal is generated; when the furnace wall pressure value is within the pressure gradient reference interval QZ2, a furnace wall expansion pressure normal signal is generated; when the furnace wall pressure value is within the pressure gradient reference interval QZ3, a furnace wall expansion pressure high signal is generated;

[0028] The number of high furnace wall expansion pressure signals, normal furnace wall expansion pressure signals and low furnace wall expansion pressure signals generated per unit time are counted respectively, and they are calibrated as sl1, sl2 and sl3 respectively. If sl1≥sl2>sl3, a signal with a large outer ring pressure performance is generated. If sl2>sl1>sl3, a signal with a normal outer ring pressure performance is generated. If sl3>sl2>sl1, a signal with a small outer ring pressure performance is generated.

[0029] Furthermore, the specific operation steps of the indirect analysis and processing of the expansion pressure state are as follows:

[0030] The heat rate value, bulk density value, oxygen energy value, coke space value and bonding value in the coking state information of coking coal per unit time are obtained in real time, and they are calibrated as rsl, dmq, yhl, hkl and nal respectively, and they are analyzed in a formula. The expansion pressure coefficient is obtained, where iw1, iw2, iw3, iw4 and iw5 are weighted proportion factors of heat rate value, bulk density value, oxygen energy value, coke space value and bonding value, respectively, and iw1, iw2, iw3, iw4 and iw5 are all natural numbers greater than 0;

[0031] Setting gradient reference thresholds TT1 and TT2 of the expansion pressure coefficient, and comparing and analyzing the expansion pressure coefficient with the preset gradient reference thresholds TT1 and TT2;

[0032] When the expansion pressure coefficient is less than or equal to the preset gradient reference threshold TT1, a mild danger signal of coking coal pressure expansion is generated; when the expansion pressure coefficient is greater than the preset gradient reference threshold TT1 and less than TT2, a moderate danger signal of coking coal pressure expansion is generated; when the expansion pressure coefficient is greater than or equal to the preset gradient reference threshold TT2, a high danger signal of coking coal pressure expansion is generated.

[0033] Further, the specific operation steps of comprehensive data analysis and processing are as follows:

[0034] According to the coke oven pressure expansion feedback type judgment signal, a set W is established, the coke oven pressure expansion high danger signal is calibrated as element o1, the coke oven pressure expansion medium danger signal is calibrated as element o2, the coke oven pressure expansion slight danger signal is calibrated as element o3, and element o1∈set W, element o2∈set W, element o3∈set W;

[0035] According to the coking coal pressure expansion feedback type judgment signal, the coking coal pressure expansion high danger signal is calibrated as element p1, the coking coal pressure expansion medium danger signal is calibrated as element p2, and the coking coal pressure expansion high danger signal is calibrated as element p3, and element p1∈set V, element p2∈set V, element p3∈set V;

[0036] Perform a union operation on the sets W and V. If W∪V={o1, p1} or {o1, p2} or {o2, p1}, a low-level warning feedback signal is generated. If W∪V={o2, p2} or {o3, p1} or {o1, p3}, a low-level warning feedback signal is generated. If W∪V={o3, p3} or {o3, p2} or {o2, p3}, an high-level warning feedback signal is generated.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention accurately measures and determines the expansion pressure of the coke oven from different angles by means of coordinate model analysis, data statistical calculation and numerical comparison, thereby directly pointing out the dangerous degree of the expansion pressure of the coke oven and laying a foundation for the accurate measurement of the expansion pressure of coking coal.

[0039] By using data assignment, formula analysis and gradient threshold comparison analysis, a clear analysis of the dangerous degree of the expansion pressure generated by coking coal is achieved, and the judgment status of various types of abnormal expansion pressures is integrated and analyzed by using data calibration and union operation. In addition, command output and early warning control are used to achieve early warning of abnormal expansion pressure status. This not only realizes accurate detection and analysis of the expansion pressure of coking coal under coking conditions, but also realizes timely feedback and control of the abnormal expansion pressure generated, reduces the destructiveness of the coking oven, and ensures the stable operation of the coking oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0041] Figure 1 This is the overall system block diagram of the present invention. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1 As shown, a coking coal expansion pressure detection system based on big data includes a server, and the server is communicatively connected with a data acquisition unit, a direct detection and analysis unit, an indirect detection and analysis unit, a comprehensive measurement and analysis unit, an early warning feedback unit, a display terminal and a coking control platform;

[0044] The data acquisition unit obtains the operation status information of the coke oven and the coking status information of the coking coal within a unit time, and sends the operation status information of the coke oven and the coking status information of the coking coal to the direct detection and analysis unit and the indirect detection and analysis unit respectively through the server;

[0045] It should be pointed out that the operation status information of the coke oven includes the center pressure value and the furnace wall pressure value, wherein the center pressure value refers to the pressure value measured at the center position of the coke oven, and the furnace wall pressure value refers to the pressure value measured at the furnace wall position of the coke oven, and the coking state information of coking coal includes the heat rate value, bulk density value, oxygen energy value, coke space value and bonding value;

[0046] When the direct detection and analysis unit receives the operating status information of the coke oven, it directly analyzes and processes the expansion pressure status accordingly. The specific operation process is as follows:

[0047] Obtain the central pressure value of the coke oven per unit time in real time and perform central pressure status analysis and processing. The specific operation process is as follows:

[0048] Real-time acquisition of the central pressure value of each time stage in the coke oven per unit time, wherein i represents a number of time stages divided per unit time, and i is a positive integer;

[0049] The time stage value is used as the horizontal coordinate and the central pressure value is used as the vertical coordinate, and a first pressure dynamic coordinate system is constructed accordingly, and the central pressure value of the coke oven at each time stage is plotted on the first pressure dynamic coordinate system by drawing points and connecting lines, thereby obtaining a central pressure curve;

[0050] The central pressure value of each time stage is analyzed by mean value, and the central pressure value is calibrated as zp i , and i = 1, 2, 3...n, according to the formula avg = (zp1 + zp2 + ... + zp n )÷n, obtain the mean center pressure value avg, and convert the mean center pressure value into a first reference line and draw it on the first pressure dynamic coordinate system, that is, the first reference line is Y=avg;

[0051] Capture each peak value appearing on the central pressure curve, and compare and analyze each peak value with the first reference line. When the peak value is above the first reference line, a signal indicating that the expansion pressure in the furnace is too high is generated. When the peak value is on the first reference line, a signal indicating that the expansion pressure in the furnace is normal is generated. When the peak value is below the first reference line, a signal indicating that the expansion pressure in the furnace is too low is generated.

[0052] The sum of the number of the high expansion pressure signal, the normal expansion pressure signal and the low expansion pressure signal generated in the unit time is counted respectively, and they are calibrated as sum1, sum2 and sum3 respectively. If sum1≥sum2>sum3 is satisfied, a signal showing a large central pressure is generated; if sum2>sum1>sum3 is satisfied, a signal showing a large central pressure is generated; if sum3>sum2>sum1 is satisfied, a signal showing a small central pressure is generated;

[0053] Obtain the coke oven wall pressure value per unit time in real time and perform peripheral pressure state analysis and processing. The specific operation process is as follows:

[0054] The furnace wall of the coke oven is divided into k areas, where k is a positive integer, and the furnace wall pressure value of each area at each time stage is obtained in real time;

[0055] Set the pressure gradient reference intervals QZ1, QZ2 and QZ3 of the furnace wall pressure value, and substitute the furnace wall pressure value into the preset pressure gradient reference intervals QZ1, QZ2 and QZ3 for comparative analysis, wherein the pressure gradient reference intervals QZ1, QZ2 and QZ3 increase in a gradient;

[0056] When the furnace wall pressure value is within the pressure gradient reference interval QZ1, a furnace wall expansion pressure low signal is generated; when the furnace wall pressure value is within the pressure gradient reference interval QZ2, a furnace wall expansion pressure normal signal is generated; when the furnace wall pressure value is within the pressure gradient reference interval QZ3, a furnace wall expansion pressure high signal is generated;

[0057] The number and the number of the high furnace wall expansion pressure signals, normal furnace wall expansion pressure signals and low furnace wall expansion pressure signals generated in a unit time are counted respectively, and they are calibrated as sl1, sl2 and sl3 respectively. If sl1≥sl2>sl3 is satisfied, a signal of a large outer ring pressure performance is generated; if sl2>sl1>sl3 is satisfied, a signal of a normal outer ring pressure performance is generated; if sl3>sl2>sl1 is satisfied, a signal of a small outer ring pressure performance is generated;

[0058] The center pressure performance type signal and the outer ring pressure performance type signal are respectively converted into symbols, wherein the center pressure performance type signal includes a center pressure performance larger signal, a center pressure performance general signal, and a center pressure performance smaller signal, and the outer ring pressure performance type signal includes an outer ring pressure performance larger signal, an outer ring pressure performance general signal, and an outer ring pressure performance smaller signal;

[0059] The signal with a larger central pressure, the signal with a normal central pressure, and the signal with a smaller central pressure are calibrated as z1, z2, and z3, respectively; the signal with a larger outer ring pressure, the signal with a normal outer ring pressure, and the signal with a smaller outer ring pressure are calibrated as c1, c2, and c3, respectively;

[0060] The center pressure performance type signal and the outer ring pressure performance type signal are integrated and analyzed. When the symbol values ​​z1 and c1 are detected at the same time, a high danger signal of coke oven pressure expansion is generated. When the symbol values ​​z3 and c3 are detected at the same time, a slight danger signal of coke oven pressure expansion is generated. In other cases, a moderate danger signal of coke oven pressure expansion is generated.

[0061] The generated coke oven pressure expansion slight danger signal, coke oven pressure expansion moderate danger signal, and coke oven pressure expansion high danger signal are all sent to the comprehensive measurement and analysis unit through the server;

[0062] When the indirect detection and analysis unit receives the coking state information of the coking coal, it performs indirect analysis and processing of the expansion pressure state accordingly. The specific operation process is as follows:

[0063] The heat rate value, bulk density value, oxygen energy value, coke space value and bonding value in the coking state information of coking coal per unit time are obtained in real time, and they are calibrated as rsl, dmq, yhl, hkl and nal respectively, and they are analyzed in a formula. The expansion pressure coefficient is obtained, where iw1, iw2, iw3, iw4 and iw5 are weighted proportion factors of heat rate value, bulk density value, oxygen energy value, coke space value and bonding value, respectively, and iw1, iw2, iw3, iw4 and iw5 are all natural numbers greater than 0;

[0064] It should be pointed out that the weight ratio factor is used to balance the weight ratio of each data in the formula calculation, so as to promote the accuracy of the calculation result, and the formula is obtained by collecting a large amount of data for software simulation and selecting a formula close to the actual value, and the coefficients in the formula are set by technicians in this field according to the actual situation;

[0065] Specifically, the heat rate value refers to the data value of the heating speed of coking coal in the coking furnace. The larger the heat rate value, the faster the heating speed of coking coal in the coking furnace. The faster the heating speed of coking coal, the greater the expansion pressure of coking coal.

[0066] The bulk density value refers to the data value of the bulk density of coking coal. When the bulk density value is larger, it means that the bulk density of coking coal is larger. When the bulk density of coking coal is larger, it further means that the expansion pressure of coking coal is large. Among them, the bulk density refers to the mass of coking coal per unit volume.

[0067] Oxygen energy value refers to the data value of the oxidation capacity of coking coal. When the oxygen energy value is larger, it means that the oxidation capacity of coking coal is greater. When the oxidation capacity of coking coal is greater, the expansion pressure of coking coal will be reduced.

[0068] The coke space value refers to the data value of the size of the coking space where the coking coal is located. When the coke space value is smaller, it means that the coking space where the coking coal is located is smaller. When the coking space where the coking coal is located is smaller, it further indicates that the expansion pressure of the coking coal is greater.

[0069] The cohesive value refers to the data value of the cohesive ability of coking coal. When the cohesive value is larger, it means that the cohesiveness of coking coal is higher. When the cohesiveness of coking coal is higher, it further means that the expansion pressure of coking coal is greater.

[0070] The gradient reference thresholds TT1 and TT2 of the expansion pressure coefficient are set, and the expansion pressure coefficient is compared and analyzed with the preset gradient reference thresholds TT1 and TT2, wherein the gradient reference thresholds TT1 and TT2 increase in gradient, so TT2=ρ*TT2, wherein ρ is the gradient multiple, and it should be pointed out that the specific values ​​of the gradient reference thresholds TT1 and TT2 and the gradient multiple ρ are specifically set by those skilled in the art according to actual research conditions;

[0071] When the expansion pressure coefficient is less than or equal to the preset gradient reference threshold TT1, a mild danger signal of coking coal pressure expansion is generated; when the expansion pressure coefficient is greater than the preset gradient reference threshold TT1 and less than TT2, a moderate danger signal of coking coal pressure expansion is generated; when the expansion pressure coefficient is greater than or equal to the preset gradient reference threshold TT2, a high danger signal of coking coal pressure expansion is generated;

[0072] The generated coking coal pressure expansion slight danger signal, coking coal pressure expansion moderate danger signal, and coking coal pressure expansion high danger signal are all sent to the comprehensive measurement and analysis unit through the server;

[0073] When the comprehensive measurement and analysis unit receives the coke oven pressure expansion feedback type determination signal and the coking coal pressure expansion feedback type determination signal, it performs comprehensive data analysis and processing accordingly. The specific operation process is as follows:

[0074] According to the coke oven pressure expansion feedback type judgment signal, a set W is established, the coke oven pressure expansion high danger signal is calibrated as element o1, the coke oven pressure expansion medium danger signal is calibrated as element o2, the coke oven pressure expansion slight danger signal is calibrated as element o3, and element o1∈set W, element o2∈set W, element o3∈set W;

[0075] According to the coking coal pressure expansion feedback type judgment signal, the coking coal pressure expansion high danger signal is calibrated as element p1, the coking coal pressure expansion medium danger signal is calibrated as element p2, and the coking coal pressure expansion high danger signal is calibrated as element p3, and element p1∈set V, element p2∈set V, element p3∈set V;

[0076] Perform a union operation on the sets W and V. If W∪V={o1, p1} or {o1, p2} or {o2, p1}, a low-level warning feedback signal is generated. If W∪V={o2, p2} or {o3, p1} or {o1, p3}, a low-level warning feedback signal is generated. If W∪V={o3, p3} or {o3, p2} or {o2, p3}, a high-level warning feedback signal is generated.

[0077] Among them, the coke oven pressure expansion feedback type determination signal includes a coke oven pressure expansion high danger signal, a coke oven pressure expansion medium danger signal, and a coke oven pressure expansion slight danger signal; the coking coal pressure expansion feedback type determination signal includes a coking coal pressure expansion slight danger signal, a coking coal pressure expansion medium danger signal, and a coking coal pressure expansion high danger signal;

[0078] The generated under-difference warning feedback signal, under-difference warning feedback signal and over-difference warning feedback signal are all sent to the warning feedback unit;

[0079] When the warning feedback unit receives the warning feedback signal of the lower difference level, the warning feedback signal of the upper difference level and the warning feedback signal of the lower difference level, and performs warning analysis and processing accordingly, the specific operation process is as follows:

[0080] When a warning feedback signal of a lower differential pressure is received, a first-level reduction command for controlling the expansion pressure is generated accordingly, and the first-level reduction command for controlling the expansion pressure is sent to the display terminal. The technician receives the first-level reduction command for controlling the expansion pressure through the display terminal, and reduces the expansion pressure of the coking coal to the maximum extent through the coking control platform;

[0081] When a differential warning feedback signal is received, a secondary reduction command for controlling the expansion pressure is generated accordingly, and the secondary reduction command for controlling the expansion pressure is sent to the display terminal. The technician receives the secondary reduction command for controlling the expansion pressure through the display terminal, and reduces the expansion pressure of the coking coal by only a moderate amplitude through the coking control platform, wherein the moderate amplitude refers to an amplitude second only to the maximum amplitude;

[0082] When an upward warning feedback signal of the differential level is received, a three-level reduction instruction for controlling the expansion pressure is generated accordingly, and the three-level reduction instruction for controlling the expansion pressure is sent to the display terminal. The technician receives the three-level reduction instruction for controlling the expansion pressure through the display terminal, and slightly reduces the expansion pressure of the coking coal through the coking control platform.

[0083] When the present invention is used, by collecting the operation status information of the coke oven in unit time and directly analyzing and processing the expansion pressure status, the coordinate model analysis, data statistical calculation and numerical comparison are used to realize a clear analysis of the operation status of the coke oven, and the expansion pressure of the coke oven is accurately determined from different angles, thereby directly pointing out the dangerous degree of the expansion pressure of the coke oven, and also laying a foundation for the accurate determination of the expansion pressure of coking coal;

[0084] By collecting the coking state information of coking coal in unit time and indirectly analyzing and processing the expansion pressure state, a clear analysis of the dangerous degree of the expansion pressure of coking coal is achieved by using data assignment, formula analysis and gradient threshold comparison analysis.

[0085] By performing comprehensive data analysis and processing on the coke oven pressure expansion feedback type determination signal and the coking coal pressure expansion feedback type determination signal, the expansion pressure states of coking coal at different levels are integrated and analyzed by means of data calibration and union operation, and the early warning of abnormal expansion pressure state is realized through command output and early warning control. Thus, accurate detection and analysis of the expansion pressure of coking coal under the coking state is achieved, and timely feedback and control of the generated abnormal expansion pressure are also achieved, thereby reducing the destructiveness of the coking oven and ensuring the stable operation of the coking oven.

[0086] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A coking coal expansion pressure detection system based on big data, comprising a server, characterized in that: The server communication connections are: A data collection unit is used to collect the operation status information of the coke oven and the coking status information of the coking coal within a unit time, and send them to the direct detection and analysis unit and the indirect detection and analysis unit respectively; The direct detection and analysis unit is used to receive the operation status information of the coke oven and directly analyze and process the expansion pressure status, thereby generating a coke oven pressure expansion slight danger signal, a coke oven pressure expansion medium danger signal, and a coke oven pressure expansion high danger signal, and sending them to the comprehensive measurement and analysis unit; the specific operation steps of the direct analysis and processing of the expansion pressure status are as follows: The central pressure value of the coke oven per unit time is obtained in real time, and the central pressure state is analyzed and processed to obtain a signal showing a large central pressure, a signal showing a normal central pressure, and a signal showing a small central pressure; Obtain the furnace wall pressure value of the coke oven per unit time in real time, and analyze and process the peripheral pressure state, thereby obtaining a signal showing a large outer ring pressure, a signal showing a normal outer ring pressure, and a signal showing a small outer ring pressure; The center pressure performance type signal and the outer ring pressure performance type signal are respectively converted into signs, and the center pressure performance larger signal, the center pressure performance general signal, and the center pressure performance smaller signal are calibrated as z1, z2, and z3, respectively, and the outer ring pressure performance larger signal, the outer ring pressure performance general signal, and the outer ring pressure performance smaller signal are calibrated as c1, c2, and c3, respectively; The center pressure performance type signal and the outer ring pressure performance type signal are integrated and analyzed. When the symbol values ​​z1 and c1 are detected at the same time, a high danger signal of coke oven pressure expansion is generated. When the symbol values ​​z3 and c3 are detected at the same time, a slight danger signal of coke oven pressure expansion is generated. In other cases, a moderate danger signal of coke oven pressure expansion is generated. The indirect detection and analysis unit is used to receive the coking state information of the coking coal and perform indirect analysis and processing of the expansion pressure state, thereby generating a coking coal pressure expansion slight danger signal, a coking coal pressure expansion medium danger signal, and a coking coal pressure expansion high danger signal, and sending them to the comprehensive measurement and analysis unit; the specific operation steps of the indirect analysis and processing of the expansion pressure state are as follows: The heat rate value, bulk density value, oxygen energy value, coke space value and bonding value in the coking state information of coking coal per unit time are obtained in real time, and they are calibrated as rsl, dmq, yhl, hkl and nal respectively, and the expansion pressure coefficient is obtained by analyzing them; Setting gradient reference thresholds TT1 and TT2 of the expansion pressure coefficient, and comparing and analyzing the expansion pressure coefficient with the preset gradient reference thresholds TT1 and TT2; When the expansion pressure coefficient is less than or equal to the preset gradient reference threshold TT1, a mild danger signal of coking coal pressure expansion is generated; when the expansion pressure coefficient is greater than the preset gradient reference threshold TT1 and less than TT2, a moderate danger signal of coking coal pressure expansion is generated; when the expansion pressure coefficient is greater than or equal to the preset gradient reference threshold TT2, a high danger signal of coking coal pressure expansion is generated; The comprehensive measurement and analysis unit is used to perform data comprehensive analysis and processing on the received coke oven pressure expansion feedback type determination signal and the coking coal pressure expansion feedback type determination signal, and generate a differential lower warning feedback signal, a differential warning feedback signal and a differential upper warning feedback signal, and send them to the warning feedback unit; the specific operation steps of the data comprehensive analysis and processing are as follows: According to the coke oven pressure expansion feedback type judgment signal, a set W is established, the coke oven pressure expansion high danger signal is calibrated as element o1, the coke oven pressure expansion medium danger signal is calibrated as element o2, the coke oven pressure expansion slight danger signal is calibrated as element o3, and element o1∈set W, element o2∈set W, element o3∈set W; According to the coking coal pressure expansion feedback type judgment signal, the coking coal pressure expansion high danger signal is calibrated as element p1, the coking coal pressure expansion medium danger signal is calibrated as element p2, and the coking coal pressure expansion high danger signal is calibrated as element p3, and element p1∈set V, element p2∈set V, element p3∈set V; Perform a union operation on the sets W and V. If W∪V={o1, p1} or {o1, p2} or {o2, p1}, a low-level warning feedback signal is generated. If W∪V={o2, p2} or {o3, p1} or {o1, p3}, a low-level warning feedback signal is generated. If W∪V={o3, p3} or {o3, p2} or {o2, p3}, a high-level warning feedback signal is generated. The early warning feedback unit is used to receive early warning feedback signals of various levels and perform early warning analysis and processing, and generate various types of control instructions based on them and send them to the display terminal for display instructions and control processing.

2. A coking coal expansion pressure detection system based on big data according to claim 1, characterized in that: The specific steps for center pressure status analysis and processing are as follows: The central pressure value of each time stage in the coke oven per unit time is obtained in real time, with the time stage value as the horizontal coordinate and the central pressure value as the vertical coordinate, and a first pressure dynamic coordinate system is constructed accordingly, and the central pressure value of the coke oven at each time stage is plotted on the first pressure dynamic coordinate system by drawing points and connecting lines, thereby obtaining a central pressure curve; Perform mean analysis on the central pressure values ​​of each time stage to obtain a mean central pressure value, and convert the mean central pressure value into a first reference line and plot it on a first pressure dynamic coordinate system; Capture each peak value appearing on the central pressure curve, and compare and analyze each peak value with the first reference line. When the peak value is above the first reference line, a signal indicating that the expansion pressure in the furnace is too high is generated. When the peak value is on the first reference line, a signal indicating that the expansion pressure in the furnace is normal is generated. When the peak value is below the first reference line, a signal indicating that the expansion pressure in the furnace is too low is generated. The sum of the signals of high expansion pressure in the furnace, normal expansion pressure in the furnace and low expansion pressure in the furnace generated per unit time are counted respectively, and calibrated as sum1, sum2 and sum3 respectively. If sum1≥sum2>sum3 is satisfied, a signal of large central pressure performance is generated; if sum2>sum1>sum3 is satisfied, a signal of large central pressure performance is generated; if sum3>sum2>sum1 is satisfied, a signal of small central pressure performance is generated.

3. The big data-based coking coal expansion pressure detection system according to claim 1, characterized in that: The specific steps for peripheral pressure state analysis and processing are as follows: The furnace wall of the coke oven is divided into k areas, where k is a positive integer, and the furnace wall pressure value of each area at each time stage is obtained in real time; Set the pressure gradient reference intervals QZ1, QZ2 and QZ3 for the furnace wall pressure value, and substitute the furnace wall pressure value into the preset pressure gradient reference intervals QZ1, QZ2 and QZ3 for comparative analysis; When the furnace wall pressure value is within the pressure gradient reference interval QZ1, a furnace wall expansion pressure low signal is generated; when the furnace wall pressure value is within the pressure gradient reference interval QZ2, a furnace wall expansion pressure normal signal is generated; when the furnace wall pressure value is within the pressure gradient reference interval QZ3, a furnace wall expansion pressure high signal is generated; The number of high furnace wall expansion pressure signals, normal furnace wall expansion pressure signals and low furnace wall expansion pressure signals generated per unit time are counted respectively, and they are calibrated as sl1, sl2 and sl3 respectively. If sl1≥sl2>sl3, a signal with a large outer ring pressure performance is generated. If sl2>sl1>sl3, a signal with a normal outer ring pressure performance is generated. If sl3>sl2>sl1, a signal with a small outer ring pressure performance is generated.

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