PLC-based control system and method for emulsion explosive production line

Abstract

The present invention discloses a control system and method for an emulsion explosive production line based on a PLC, which relates to the technical field of explosive production, and includes: obtaining the process connection parameters of multiple production processes of the emulsion explosive production line and the emulsion fluctuation range based on the PLC, and obtaining the emulsion influence range based on the emulsion fluctuation range; controlling the emulsion explosive production line based on the data of the emulsion process obtained in real time and the emulsion influence range; The present invention is used to solve the problem in the existing control system of the emulsion explosive production line that it is impossible to control the operation timing of each process through data collection and processing, which will cause abnormalities in the production process or when the amount of emulsion matrix produced by a certain production process is small, there will be insufficient materials, resulting in waste of resources and reduced production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of explosive production, and specifically to a control system and method for an emulsion explosive production line based on PLC. Background Art

[0002] Emulsion explosive is a special water-containing mixed explosive. Through the action of an emulsifier, micro-droplets of an oxidizer salt aqueous solution are evenly dispersed in an oil-phase continuous medium containing porous substances such as dispersed air bubbles or hollow glass microspheres, forming an oil-in-water type emulsion explosive; the key components of emulsion explosive include an oxidizer aqueous solution as the dispersed phase and a carbonaceous fuel that is insoluble in water but can be liquefied as the continuous phase; through the synergistic action of emulsification and a sensitizer, a unique oil-in-water (W / O) structure is formed.

[0003] Existing methods for controlling emulsion explosive production lines usually collect various data in the emulsion explosive production line, such as steam temperature data, and control the emulsion explosive production line based on the changes in steam temperature during transmission. Although this improved method can improve the safety of the emulsion explosive production line, it cannot control the operation timing of each process in the emulsion explosive production line through data collection and processing. This will lead to when all production equipment in the emulsion explosive production line is operating at full capacity, if there is an abnormality in a certain production process or the amount of emulsion matrix produced by a certain production process is small, it will cause the subsequent started production equipment to be unable to start normally due to lack of sufficient processing materials, resulting in waste of resources and reduction of production efficiency. For example, in the patent application with the publication number CN115390438A, a control system and method for an emulsion explosive production line based on PLC are disclosed. This solution collects steam temperature during the supply, transmission, and processing of steam at the same time, and adjusts the process in a timely manner when the temperature is too high or too low during a certain steam transmission process to ensure the safe production of emulsion explosives. Other improvements in the control of emulsion explosive production lines are usually in the aspects of emergency safety treatment and improvement of safety. In the PLC application of emulsion explosive production lines, the operation timing of each process in the emulsion explosive production line cannot be controlled through data collection and processing. This will lead to when all production equipment in the emulsion explosive production line is operating at full capacity, if there is an abnormality in a certain production process or the amount of emulsion matrix produced by a certain production process is small, it will cause the subsequent started production equipment to be unable to start normally due to lack of sufficient processing materials, resulting in waste of resources and reduction of production efficiency. In view of this, it is necessary to improve the existing control methods for emulsion explosive production lines. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the prior art to some extent. By providing a control system and method for an emulsion explosive production line based on PLC, it is used to solve the problem in the existing control system of the emulsion explosive production line that the operation timing of each process in the emulsion explosive production line cannot be controlled through data collection and processing. This will lead to the situation that when all production equipment in the emulsion explosive production line is in full operation, if there is an abnormality in a certain production process or the amount of emulsion matrix produced by a certain production process is small, the subsequent started production equipment will not be able to start normally due to lack of sufficient processing materials, resulting in waste of resources and reduction of production efficiency.

[0005] To achieve the above object, in the first aspect, the present application provides a control system for an emulsion explosive production line based on PLC, including a total process weight analysis module, an emulsification analysis module, and an emulsification traction analysis module;

[0006] The total process weight analysis module is used to analyze multiple production processes in the emulsion explosive production line based on PLC, and obtain the process connection parameters of each production process based on the analysis. Among them, the production processes include an emulsification process, a cooling process, a sensitization treatment process, and a packaging process;

[0007] The emulsification analysis module is used to analyze the emulsification process in the emulsion explosive production line, obtain the emulsification fluctuation range based on the analysis result, and obtain the emulsification influence range corresponding to each process other than the emulsification process in the multiple production processes of the emulsion explosive production line based on the emulsification fluctuation range;

[0008] The emulsification traction analysis module is used to control multiple production processes in the emulsion explosive production line based on the data of the emulsification process and the emulsification influence range obtained in real time when the emulsion explosive production line is operating.

[0009] Further, the total process weight analysis module includes a multi-process analysis unit, and the multi-process analysis unit is configured with a multi-process analysis strategy, and the multi-process analysis strategy includes:

[0010] Obtain multiple preparation ratios of the oxidizer aqueous solution and the oil-phase material in the emulsification process, and record them as the emulsification mixing ratio, where the emulsification mixing ratio is the volume of the oxidizer aqueous solution in the preparation ratio divided by the volume of the oil-phase material; establish a plane rectangular coordinate system, denoted as the mixing analysis coordinate system, where the X-axis of the mixing analysis coordinate system is the constant axis and the unit of the Y-axis is time;

[0011] Record the maximum volume of the oxidizer aqueous solution that can be mixed at one time in the emulsion explosive production line as L max; For any emulsification mixing ratio: Set the value on the X-axis in the mixing analysis coordinate system as the volume of the oxidant aqueous solution during the premixing of the oxidant aqueous solution and the oil-phase material; Based on the PLC, obtain the time required for premixing when the volume of the oxidant aqueous solution increases from 0 to L during premixing at the emulsification mixing ratio, and plot the relationship curve between the volume and time of the oxidant aqueous solution in the mixing analysis coordinate system, and denote it as the emulsification mixing curve, where premixing is the mixing of the oxidant aqueous solution and the oil-phase material in the mixing equipment before the emulsification process; max When it reaches, record the time required for premixing, plot the relationship curve between the volume and time of the oxidant aqueous solution in the mixing analysis coordinate system, and denote it as the emulsification mixing curve, where premixing is the mixing of the oxidant aqueous solution and the oil-phase material in the mixing equipment before the emulsification process;

[0012] Obtain the emulsification mixing curves corresponding to all emulsification mixing ratios, and place all the emulsification mixing curves in the same mixing analysis coordinate system.

[0013] Furthermore, the multi-process analysis strategy also includes:

[0014] Denote the minimum volume of the oxidant aqueous solution used during the emulsification process as X 1 , and in the mixing analysis coordinate system, mark the intersection points of the line X = X 1 with all the emulsification mixing curves as the bottom-line limit points; For any bottom-line limit point, denote the ratio of the emulsification mixing ratio corresponding to the emulsification mixing curve where the bottom-line limit point is located to X 1 as the volume connection ratio, and denote the ratio of the emulsification mixing ratio to the ordinate of the bottom-line limit point as the time connection ratio;

[0015] Use the comprehensive connection algorithm to obtain the process connection parameters of the emulsification process, and the comprehensive connection algorithm is: , where H is the process connection parameter of the emulsification process, c is the number of emulsification mixing curves, T i is the volume connection ratio of the i-th emulsification mixing curve among all emulsification mixing curves, and S i is the time connection ratio of the i-th emulsification mixing curve among all emulsification mixing curves.

[0016] Furthermore, the multi-process analysis strategy also includes:

[0017] Denote the interval composed of the minimum volume and the maximum volume that the emulsified matrix in the sensitization device is allowed to be put in once during the sensitization process as the sensitization treatment interval; For any emulsification mixing ratio, denote the drug output temperature after the oxidant aqueous solution and the oil-phase material mixed at the emulsification mixing ratio form an emulsified matrix in the emulsifier as the emulsification drug output temperature; Obtain the emulsification drug output temperature corresponding to the emulsification mixing ratio;

[0018] Denote the minimum value of the emulsified matrix that is allowed to be put into the sensitization device once for each emulsification drug output temperature as the temperature sensitization low value; Obtain the interval composed of all temperature sensitization low values, and denote it as the sensitization temperature interval; Denoted as the process connection parameter of the sensitization process, where M min is the minimum value of the sensitization process interval, m min is the minimum value of the sensitization temperature interval, M sq is the average value of the maximum and minimum values in the sensitization process interval, m sq is the average value of the maximum and minimum values in the sensitization temperature interval.

[0019] Furthermore, the multi-process analysis strategy also includes:

[0020] Denote the minimum volume of the emulsified matrix that the cooling device is allowed to put in at one time during the cooling process as the process connection parameter of the cooling process;

[0021] Denote the maximum volume of the cartridges consumed by the automatic charging system at one time during the packaging process as the process connection parameter of the packaging process.

[0022] Furthermore, the emulsification analysis module includes an emulsification analysis unit, and the emulsification analysis unit is configured with an emulsification analysis strategy, and the emulsification analysis strategy includes:

[0023] Denote [H, T max +S max as the emulsification fluctuation interval of the emulsification process, where T max is the maximum value among all volume connection ratios, S max is the maximum value among all time connection ratios;

[0024] For any value α in the emulsification fluctuation interval, based on the PLC, obtain all combinations of the emulsification mixing ratio and time existing in all emulsification mixing curves when the sum of the volume connection ratio and the time connection ratio during the emulsification process is α, and the volume of the oxidizer aqueous solution used is X 1 at this time, and denote it as the emulsification influence combination;

[0025] For any emulsification influence combination, based on the PLC, simulate the emulsification process composed of the emulsification influence combination and the oxidizer aqueous solution with a volume of X 1 , and based on the simulation results, simulate the sensitization process, the cooling process, and the packaging process, and denote it as the emulsification subsequent simulation.

[0026] Furthermore, the emulsification analysis strategy also includes:

[0027] Denote the value when the emulsified matrix is put into the sensitization device once in the emulsification subsequent simulation as the sensitization influence value; denote the value when the emulsified matrix is put into the cooling device once in the emulsification subsequent simulation as the cooling influence value; denote the volume of the cartridges consumed by the automatic charging system once in the emulsification subsequent simulation as the packaging influence value;

[0028] Obtain the sensitization influence value, cooling influence value, and packaging influence value of all emulsification influence combinations of all values in the emulsification fluctuation range, and record the range formed by all sensitization influence values and the process connection parameters of the sensitization process as the emulsification influence range of the sensitization process;

[0029] Record the range formed by all cooling influence values and the process connection parameters of the cooling process as the emulsification influence range of the cooling process;

[0030] Record the range formed by all packaging influence values and the process connection parameters of the packaging process as the emulsification influence range of the packaging process.

[0031] Furthermore, the emulsification traction analysis module includes an emulsification influence control unit, and the emulsification influence control unit is configured with an emulsification influence control strategy. The emulsification influence control strategy includes:

[0032] When the emulsified explosive production line is operating, obtain in real time the emulsification mixing ratio selected before pretreatment, the volume of the oxidizer aqueous solution already put into the emulsifier, and the volume of the oil-phase material already put into the emulsifier. Calculate the corresponding volume connection ratio and time connection ratio based on the PLC, and record the sum of the calculated volume connection ratio and time connection ratio as the real-time emulsification parameter. Among them, adjust the X in the volume connection ratio formula calculated during the operation of the emulsified explosive production line 1 To the volume of the oxidizer aqueous solution obtained in real time;

[0033] When the real-time emulsification parameter is within the emulsification fluctuation range, start the sensitization device.

[0034] Furthermore, the emulsification influence control strategy also includes:

[0035] When the emulsified explosive production line is operating, when the volume of the emulsification matrix put into the sensitization device once is within the emulsification influence range of the sensitization process, obtain in real time the processing time of the sensitization device, denoted as t1, and set the working state of the cooling device to the start state within t1;

[0036] When the volume of the emulsification matrix put into the cooling device once is within the emulsification influence range of the cooling process, obtain in real time the processing time of the cooling device, denoted as t2, and set the working state of the automatic charging system to the start state within t2;

[0037] When the volume of the cartridges consumed by the automatic charging system once is within the emulsification influence range of the packaging process, record the production process of the emulsified explosive as completed;

[0038] When the volume of the emulsion matrix placed in the sensitization device at one time is not within the emulsion influence range of the sensitization process, the production process of the emulsion explosive is recorded as a process interruption, and the process of the sensitization device is stopped; when the volume of the emulsion matrix placed in the cooling device at one time is not within the emulsion influence range of the cooling process, the production process of the emulsion explosive is recorded as a process interruption, and the process of the cooling device is stopped;

[0039] When the volume of the cartridge consumed by the automatic charging system at one time is not within the emulsion influence range of the packaging process, the production process of the emulsion explosive is recorded as a process interruption, and the process of the automatic charging system is stopped.

[0040] In a second aspect, the present application also provides a control method for an emulsion explosive production line based on PLC, including the following steps:

[0041] Analyze multiple production processes in the emulsion explosive production line based on PLC, and obtain the process connection parameters of each production process based on the analysis;

[0042] Analyze the emulsification process in the emulsion explosive production line, obtain the emulsification fluctuation range based on the analysis result, and obtain the emulsion influence range corresponding to each process other than the emulsification process in the multiple production processes of the emulsion explosive production line based on the emulsification fluctuation range;

[0043] When the emulsion explosive production line is operating, control multiple production processes in the emulsion explosive production line based on the data of the emulsification process obtained in real time and the emulsion influence range.

[0044] The beneficial effects of the present invention: The present application first analyzes multiple production processes in the emulsion explosive production line based on PLC, and obtains the process connection parameters of each production process based on the analysis; then analyzes the emulsification process in the emulsion explosive production line, and obtains the emulsification fluctuation range based on the analysis result. The advantage of this is that by obtaining the process connection parameters of each production process and obtaining the emulsification fluctuation range based on the process connection parameters, it is possible to obtain the parameters related to the equipment start-up between each adjacent operating production process after the production of the emulsion explosive production line starts, which helps to ensure that in the subsequent control process, when the equipment in the previous production process produces enough emulsion matrix, the equipment in the next production process can start in a timely and accurate manner to achieve a smooth connection of the production process; and when there is an abnormality in a certain production process or the amount of emulsion matrix produced by a certain production process is small, the start-up of the equipment in the next production process is not controlled to prevent waste of production resources, thereby improving production efficiency;

[0045] This application also obtains the emulsification influence range corresponding to each process other than the emulsification process in multiple production processes of the emulsion explosive production line based on the emulsification fluctuation range; finally, when the emulsion explosive production line operates, it controls multiple production processes in the emulsion explosive production line based on the data of the emulsification process obtained in real time and the emulsification influence range. The advantage of this is that by obtaining the emulsification influence range, the speed of data processing and the efficiency of data verification can be improved during the control of the equipment in the production process, thereby further improving the production efficiency on the basis of ensuring the smooth connection of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a flowchart of the steps of the method of the present invention;

[0047] Figure 2 is a schematic block diagram of the system of the present invention;

[0048] Figure 3 is a schematic diagram of the hybrid analysis coordinate system of the present invention;

[0049] Figure 4 is a schematic diagram of the real-time control of the emulsion explosive production process of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] Embodiment 1, please refer to Figure 1 As shown, this application provides a control method for an emulsion explosive production line based on a PLC, including the following steps:

[0052] Step S1, analyze multiple production processes in the emulsion explosive production line based on the PLC, and obtain the process connection parameters of each production process based on the analysis; Step S1 includes the following sub-steps:

[0053] Step S101, obtain multiple preparation ratios of the oxidizer aqueous solution and the oil-phase material during the emulsification process, and record them as the emulsification mixing ratio, where the emulsification mixing ratio is the volume of the oxidizer aqueous solution in the preparation ratio divided by the volume of the oil-phase material; establish a plane rectangular coordinate system, denoted as the hybrid analysis coordinate system, where the X-axis of the hybrid analysis coordinate system is the constant axis and the unit of the Y-axis is time;

[0054] In the specific implementation process, the emulsification mixing ratio can be set according to the ratio that can be configured between the oxidizer aqueous solution and the oil-phase material in the actual emulsified explosive production line. By obtaining all the emulsification mixing ratios, all production situations that may be encountered in the emulsified explosive production line can be analyzed during subsequent analysis to ensure more comprehensive data analysis;

[0055] Step S102: Denote the maximum volume of the oxidizer aqueous solution that is allowed to be mixed at one time in the emulsified explosive production line as L max ; For any emulsification mixing ratio: Set the value on the X-axis in the mixing analysis coordinate system as the volume of the oxidizer aqueous solution when the oxidizer aqueous solution and the oil-phase material are pre-mixed; Based on the PLC, obtain the time required for pre-mixing when the volume of the oxidizer aqueous solution is increased from 0 to L max during pre-mixing at the emulsification mixing ratio, and draw a relationship curve between the volume and time of the oxidizer aqueous solution in the mixing analysis coordinate system, and denote it as the emulsification mixing curve, where pre-mixing is the mixing of the oxidizer aqueous solution and the oil-phase material in the mixing equipment before the emulsification process;

[0056] Step S103: Obtain the emulsification mixing curves corresponding to all emulsification mixing ratios, and place all the emulsification mixing curves in the same mixing analysis coordinate system;

[0057] In the specific implementation process, for example, during one data processing, the obtained L max is 10L, the minimum volume of the oxidizer aqueous solution used during the emulsification process is 5L, and the mixing analysis coordinate system containing all the emulsification mixing curves is as shown in Figure 3 . Among them, curves RQ1 to RQ4 are all emulsification mixing curves. Then, through analysis, it can be obtained that points DX1 to DX4 are the bottom-line limit points, the coordinates of point DX3 are (5, 2), and the emulsification mixing ratio corresponding to the emulsification mixing curve where point DX3 is located is 1:5, that is, 1 / 5; then the volume connection ratio is 1 / 25, and the time connection ratio is 1 / 10; By obtaining the volume connection ratio and the time connection ratio and further obtaining the process connection parameters of the emulsification process, parameters indicating that the emulsification process is operating normally can be obtained during the emulsification processes of all emulsification mixing ratios, thereby providing data support for the analysis of subsequent production processes;

[0058] Step S104: Denote the minimum volume of the oxidizer aqueous solution used during the emulsification process as X 1 , and mark the intersection points of the straight line of X = X 1 with all the emulsification mixing curves in the mixing analysis coordinate system as the bottom-line limit points; For any bottom-line limit point, compare the emulsification mixing ratio corresponding to the emulsification mixing curve where the bottom-line limit point is located with X 1The ratio is denoted as the volume connection ratio, and the ratio of the emulsification mixing ratio to the ordinate of the bottom line limit point is denoted as the time connection ratio;

[0059] Step S105, use the comprehensive connection algorithm to obtain the process connection parameters of the emulsification process. The comprehensive connection algorithm is: , where H is the process connection parameter of the emulsification process, c is the number of emulsification mixing curves, and T i is the volume connection ratio of the i-th emulsification mixing curve among all emulsification mixing curves, and S i is the time connection ratio of the i-th emulsification mixing curve among all emulsification mixing curves;

[0060] In a specific implementation process, for example, during a data processing, all the obtained volume connection ratios are 1 / 20, 1 / 10, 1 / 5, 1 / 25, and 1 / 20 respectively, and all the time connection ratios are 1 / 10, 1 / 5, 1 / 20, 1 / 5, and 1 / 5 respectively. Then, through data calculation, the process connection parameter of the emulsification process is 1.19;

[0061] Step S106, denote the interval formed by the minimum volume and the maximum volume that the emulsification matrix in the sensitization device is allowed to be put in at one time during the sensitization process as the sensitization processing interval; for any emulsification mixing ratio, denote the drug output temperature after the oxidizer aqueous solution and the oil phase material mixed in the emulsification mixer form the emulsification matrix as the emulsification drug output temperature; obtain the emulsification drug output temperature corresponding to the emulsification mixing ratio;

[0062] Step S107, denote the minimum value of the emulsification matrix that is allowed to be put into the sensitization device for each emulsification drug output temperature as the temperature sensitization low value; obtain the interval formed by all the temperature sensitization low values and denote it as the sensitization temperature interval; denote as the process connection parameter of the sensitization process, where M min is the minimum value of the sensitization processing interval, m min is the minimum value of the sensitization temperature interval, M sq is the average value of the maximum value and the minimum value in the sensitization processing interval, and m sq is the average value of the maximum value and the minimum value in the sensitization temperature interval;

[0063] In a specific implementation process, by obtaining the sensitization processing interval and the sensitization temperature interval, the volume interval of the emulsification matrix that can be put into the sensitization device and the volume interval of the emulsification matrix that can be put into in actual application can be obtained. And by obtaining the process connection parameter of the sensitization process based on the sensitization processing interval and the sensitization temperature interval, the volume value of the emulsification matrix that allows the sensitization device to start can be obtained, which is helpful for providing data support for the subsequent control of the sensitization device;

[0064] For example, during a data processing operation, if the sensitization treatment interval obtained is [10L, 20L] and the sensitization temperature interval is [12L, 16L], then through data calculation, the process connection parameter for the sensitization treatment process is 12.17;

[0065] Step S108: Denote the minimum volume of the emulsified matrix that the cooling device is allowed to place in a single time during the cooling process as the process connection parameter for the cooling process;

[0066] Step S109: Denote the maximum volume of cartridges consumed by the automatic charging system in a single time during the packaging process as the process connection parameter for the packaging process.

[0067] Step S2: Analyze the emulsification process in the emulsified explosive production line, obtain the emulsification fluctuation interval based on the analysis results, and obtain the emulsification influence interval corresponding to each process other than the emulsification process in multiple production processes of the emulsified explosive production line based on the emulsification fluctuation interval;

[0068] Step S2 includes the following sub-steps: Step S201: Denote [H, T max +S max as the emulsification fluctuation interval for the emulsification process, where T max is the maximum value among all volume connection ratios, and S max is the maximum value among all time connection ratios;

[0069] In a specific implementation process, for example, during a data processing operation, if the obtained H is 1.19, the maximum value among all volume connection ratios is 1 / 5, and the maximum value among all time connection ratios is 1 / 5, then through data calculation, the emulsification fluctuation interval for the emulsification process is [1.19, 1.59]. By obtaining the emulsification fluctuation interval for the emulsification process, obtaining the emulsification influence combination based on the emulsification fluctuation interval, and obtaining the sensitization influence value, cooling influence value, and packaging influence value based on the emulsification influence combination, all possible situations of the data in the production process of the emulsified explosive can be obtained to ensure that in subsequent control processes, each device in the production process can be controlled based on more comprehensive and accurate data;

[0070] Step S202: For any value α in the emulsification fluctuation interval, based on the PLC, obtain all combinations of the emulsification mixing ratio and time existing in all emulsification mixing curves when the sum of the volume connection ratio and the time connection ratio during the emulsification process is α and the volume of the oxidizer aqueous solution used is X 1 and denote it as the emulsification influence combination;

[0071] Step S203: For any emulsification influence combination, based on the PLC, for the combination of the emulsification influence combination and the volume X 1Simulate the emulsification process composed of the aqueous solution of the oxidizer, and based on the simulation results, simulate the sensitization process, the cooling process, and the packaging process, which is denoted as the subsequent simulation of emulsification;

[0072] Step S204: Denote the value when the emulsified matrix is placed in the sensitization device once in the subsequent simulation of emulsification as the sensitization influence value; Denote the value when the emulsified matrix is placed in the cooling device once in the subsequent simulation of emulsification as the cooling influence value; Denote the volume of the cartridge consumed by the automatic charging system once in the subsequent simulation of emulsification as the packaging influence value;

[0073] Step S205: Obtain the sensitization influence value, the cooling influence value, and the packaging influence value of all emulsification influence combinations of all values in the emulsification fluctuation range, and denote the range formed by all sensitization influence values and the process connection parameters of the sensitization process as the emulsification influence range of the sensitization process;

[0074] Step S206: Denote the range formed by all cooling influence values and the process connection parameters of the cooling process as the emulsification influence range of the cooling process;

[0075] Step S207: Denote the range formed by all packaging influence values and the process connection parameters of the packaging process as the emulsification influence range of the packaging process;

[0076] In the specific implementation process, by obtaining the emulsification influence ranges of the sensitization process, the cooling process, and the packaging process based on the sensitization influence value, the cooling influence value, and the packaging influence value, all situations of the data that can be generated in the sensitization process, the cooling formation process, and the packaging process after emulsification treatment can be obtained in actual application, which helps to provide more comprehensive data support for the equipment control in the production process during subsequent analysis.

[0077] Step S3: When the emulsion explosive production line is operating, control multiple production processes in the emulsion explosive production line based on the data of the emulsification process obtained in real time and the emulsification influence range; Step S3 includes the following sub-steps:

[0078] Step S301: In the specific implementation process, please refer to Figure 4 As shown, when the emulsion explosive production line is operating, obtain in real time the emulsification mixing ratio selected before pretreatment, the volume of the aqueous solution of the oxidizer already placed in the emulsifier, and the volume of the oil-phase material already placed in the emulsifier, calculate the corresponding volume connection ratio and time connection ratio based on the PLC, and denote the sum of the calculated volume connection ratio and time connection ratio as the real-time emulsification parameter. Among them, adjust X in the volume connection ratio formula calculated when the emulsion explosive production line is operating 1 to the volume of the aqueous solution of the oxidizer obtained in real time;

[0079] Step S302: When the real-time emulsification parameters are within the emulsification fluctuation range, start the sensitization device;

[0080] Step S303: During the operation of the emulsion explosive production line, when the volume of the emulsion matrix placed in the sensitization device at one time is within the emulsification influence range of the sensitization process, obtain the processing time of the sensitization device in real time, denoted as t1, and set the working state of the cooling device to the start state within t1;

[0081] Step S304: When the volume of the emulsion matrix placed in the cooling device at one time is within the emulsification influence range of the cooling process, obtain the processing time of the cooling device in real time, denoted as t2, and set the working state of the automatic charging system to the start state within t2;

[0082] Step S305: When the volume of the cartridge consumed by the automatic charging system at one time is within the emulsification influence range of the packaging process, record the production process of the emulsion explosive as completed;

[0083] In the specific implementation process, during the operation of the emulsion explosive production line, when the volume of the emulsion matrix placed in the sensitization device at one time is within the emulsification influence range of the sensitization process, the volume of the emulsion matrix placed in the cooling device at one time is within the emulsification influence range of the cooling process, and the volume of the cartridge consumed by the automatic charging system at one time is within the emulsification influence range of the packaging process, it indicates that all the data in the production process are parameters within the normal range. Therefore, all the equipment in the production process is operating normally, and thus the production process of the emulsion explosive can be recorded as completed;

[0084] Step S306: When the volume of the emulsion matrix placed in the sensitization device at one time is not within the emulsification influence range of the sensitization process, record the production process of the emulsion explosive as process interruption and stop the process of the sensitization device; when the volume of the emulsion matrix placed in the cooling device at one time is not within the emulsification influence range of the cooling process, record the production process of the emulsion explosive as process interruption and stop the process of the cooling device;

[0085] Step S307: When the volume of the cartridge consumed by the automatic charging system at one time is not within the emulsification influence range of the packaging process, record the production process of the emulsion explosive as process interruption and stop the process of the automatic charging system.

[0086] Example 2, please refer to Figure 2 As shown, the present application also provides a control system for an emulsion explosive production line based on PLC, including a total process weight analysis module, an emulsification analysis module, and an emulsification traction analysis module;

[0087] The total process weight analysis module is used to analyze multiple production processes in the emulsion explosive production line based on the PLC, and obtain the process connection parameters of each production process based on the analysis. Among them, the production processes include the emulsification process, the cooling process, the sensitization treatment process, and the packaging process;

[0088] The total process weight analysis module includes a multi-process analysis unit, and the multi-process analysis unit is configured with a multi-process analysis strategy. The multi-process analysis strategy includes:

[0089] Obtain multiple preparation ratios of the oxidizer aqueous solution and the oil-phase material in the emulsification process, and record them as the emulsification mixing ratio. Among them, the emulsification mixing ratio is the volume of the oxidizer aqueous solution in the preparation ratio divided by the volume of the oil-phase material; establish a plane rectangular coordinate system, denoted as the mixing analysis coordinate system, where the X-axis of the mixing analysis coordinate system is the constant axis and the unit of the Y-axis is time;

[0090] Denote the maximum volume that the oxidizer aqueous solution in the emulsion explosive production line is allowed to be mixed at one time as L max ; for any emulsification mixing ratio: set the value on the X-axis in the mixing analysis coordinate system as the volume of the oxidizer aqueous solution when the oxidizer aqueous solution and the oil-phase material are premixed; based on the PLC, obtain the time required for premixing when the volume of the oxidizer aqueous solution is increased from 0 to L during premixing at the emulsification mixing ratio, and draw a relationship curve between the volume of the oxidizer aqueous solution and time in the mixing analysis coordinate system, and denote it as the emulsification mixing curve. Among them, premixing is to mix the oxidizer aqueous solution and the oil-phase material in the mixing equipment before the emulsification process; max When, draw a relationship curve between the volume of the oxidizer aqueous solution and time in the mixing analysis coordinate system, and denote it as the emulsification mixing curve. Among them, premixing is to mix the oxidizer aqueous solution and the oil-phase material in the mixing equipment before the emulsification process;

[0091] Obtain the emulsification mixing curves corresponding to all emulsification mixing ratios, and place all the emulsification mixing curves in the same mixing analysis coordinate system;

[0092] Denote the minimum volume of the oxidizer aqueous solution used in the emulsification process as X 1 , in the mixing analysis coordinate system, mark the intersection points of the straight line X = X 1 with all the emulsification mixing curves as the bottom line limit points; for any bottom line limit point, denote the ratio of the emulsification mixing ratio corresponding to the emulsification mixing curve where the bottom line limit point is located to X 1 as the volume connection ratio, and denote the ratio of the emulsification mixing ratio to the ordinate of the bottom line limit point as the time connection ratio;

[0093] Use the comprehensive connection algorithm to obtain the process connection parameters of the emulsification process. The comprehensive connection algorithm is: , where H is the process connection parameter of the emulsification process, c is the number of emulsification mixing curves, T i is the volume connection ratio of the i-th emulsification mixing curve among all the emulsification mixing curves, S iis the time connection ratio of the i-th emulsification mixing curve among all emulsification mixing curves;

[0094] Denote the interval composed of the minimum volume and the maximum volume that the emulsified matrix in the sensitization device is allowed to be put in once during the sensitization process as the sensitization process interval; for any emulsification mixing ratio, denote the drug output temperature after the oxidizer aqueous solution and the oil phase material mixed in the emulsification mixing ratio form an emulsified matrix in the emulsifier as the emulsification drug output temperature; obtain the emulsification drug output temperature corresponding to the emulsification mixing ratio;

[0095] Denote the minimum value that the emulsified matrix of each emulsification drug output temperature is allowed to be put into the sensitization device once as the temperature sensitization low value; obtain the interval composed of all temperature sensitization low values and denote it as the sensitization temperature interval; is denoted as the process connection parameter of the sensitization process, where M min is the minimum value of the sensitization process interval, m min is the minimum value of the sensitization temperature interval, M sq is the average value of the maximum value and the minimum value in the sensitization process interval, m sq is the average value of the maximum value and the minimum value in the sensitization temperature interval;

[0096] The multi-process analysis strategy also includes: Denote the minimum volume of the emulsified matrix that the cooling device is allowed to put in once during the cooling process as the process connection parameter of the cooling process;

[0097] Denote the maximum volume of the cartridges consumed by the automatic charge system once during the packaging process as the process connection parameter of the packaging process.

[0098] The emulsification analysis module is used to analyze the emulsification process in the emulsified explosive production line, obtain the emulsification fluctuation interval based on the analysis result, and obtain the emulsification influence interval corresponding to each process except the emulsification process in multiple production processes of the emulsified explosive production line based on the emulsification fluctuation interval;

[0099] The emulsification analysis module includes an emulsification analysis unit, and the emulsification analysis unit is configured with an emulsification analysis strategy, and the emulsification analysis strategy includes:

[0100] Denote [H, T max +S max as the emulsification fluctuation interval of the emulsification process, where T max is the maximum value among all volume connection ratios, and S max is the maximum value among all time connection ratios;

[0101] For any value α in the emulsification fluctuation interval, obtain based on the PLC that when the sum of the volume connection ratio and the time connection ratio in the emulsification process is α, and the volume of the oxidizer aqueous solution used is X 1When there are all combinations of the emulsification mixing ratio and time existing in all emulsification mixing curves, they are denoted as emulsification influence combinations;

[0102] For any emulsification influence combination, based on the PLC, simulate the emulsification process composed of the emulsification influence combination and the aqueous oxidizer solution with a volume of X 1 and simulate the sensitization process, cooling process, and packaging process based on the simulation results, which is denoted as subsequent emulsification simulation;

[0103] The emulsification analysis strategy further includes: denoting the value when the emulsification matrix is put into the sensitization device once in the subsequent emulsification simulation as the sensitization influence value; denoting the value when the emulsification matrix is put into the cooling device once in the subsequent emulsification simulation as the cooling influence value; denoting the volume of the cartridge consumed by the automatic charging system once in the subsequent emulsification simulation as the packaging influence value;

[0104] Obtain the sensitization influence values, cooling influence values, and packaging influence values of all emulsification influence combinations of all values in the emulsification fluctuation range, and denote the range composed of all sensitization influence values and the process connection parameters of the sensitization process as the emulsification influence range of the sensitization process;

[0105] Denote the range composed of all cooling influence values and the process connection parameters of the cooling process as the emulsification influence range of the cooling process;

[0106] Denote the range composed of all packaging influence values and the process connection parameters of the packaging process as the emulsification influence range of the packaging process.

[0107] The emulsification traction analysis module is used to control multiple production processes in the emulsion explosive production line based on the data of the emulsification process obtained in real time and the emulsification influence range when the emulsion explosive production line is operating; the emulsification traction analysis module includes an emulsification influence control unit, and the emulsification influence control unit is configured with an emulsification influence control strategy, and the emulsification influence control strategy includes:

[0108] When the emulsion explosive production line is operating, obtain in real time the emulsification mixing ratio selected before pretreatment, the volume of the aqueous oxidizer solution already put into the emulsifier, and the volume of the oil-phase material already put into the emulsifier, calculate the corresponding volume connection ratio and time connection ratio based on the PLC, and denote the sum of the calculated volume connection ratio and time connection ratio as the real-time emulsification parameter. Among them, in the volume connection ratio formula calculated when the emulsion explosive production line is operating, X 1 is adjusted to the volume of the aqueous oxidizer solution obtained in real time;

[0109] When the real-time emulsification parameter is within the emulsification fluctuation range, start the sensitization device;

[0110] When the emulsion explosive production line is operating, when the volume of the emulsion matrix placed in the sensitization device at one time is within the emulsion influence range of the sensitization process, the processing time of the sensitization device is obtained in real time, denoted as t1, and the working state of the cooling device is set to the start state within t1;

[0111] When the volume of the emulsion matrix placed in the cooling device at one time is within the emulsion influence range of the cooling process, the processing time of the cooling device is obtained in real time, denoted as t2, and the working state of the automatic charging system is set to the start state within t2;

[0112] When the volume of the cartridge consumed by the automatic charging system at one time is within the emulsion influence range of the packaging process, the production process of the emulsion explosive is recorded as completed;

[0113] When the volume of the emulsion matrix placed in the sensitization device at one time is not within the emulsion influence range of the sensitization process, the production process of the emulsion explosive is recorded as interrupted, and the process of the sensitization device is stopped; when the volume of the emulsion matrix placed in the cooling device at one time is not within the emulsion influence range of the cooling process, the production process of the emulsion explosive is recorded as interrupted, and the process of the cooling device is stopped;

[0114] When the volume of the cartridge consumed by the automatic charging system at one time is not within the emulsion influence range of the packaging process, the production process of the emulsion explosive is recorded as interrupted, and the process of the automatic charging system is stopped.

[0115] Working principle: First, analyze multiple production processes in the emulsion explosive production line based on PLC, and obtain the process connection parameters of each production process based on the analysis; then analyze the emulsification process in the emulsion explosive production line, obtain the emulsification fluctuation range based on the analysis results, and obtain the emulsion influence range corresponding to each process except the emulsification process in multiple production processes of the emulsion explosive production line based on the emulsification fluctuation range; finally, when the emulsion explosive production line is operating, control multiple production processes in the emulsion explosive production line based on the data of the emulsification process obtained in real time and the emulsion influence range.

[0116] Through the description of the above embodiments, the embodiments of the present invention can be provided as a method, a system or a computer program product. Based on such an understanding, the above technical solution, in essence, or the part that makes a contribution to the prior art can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disc, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0117] In the embodiments provided in the present application, it should be understood that the disclosed system or method can be implemented in other ways. The embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation. For another example, multiple modules or units can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some communication interfaces. The indirect coupling or communication connection of systems, modules, and units can be electrical, mechanical, or other forms.

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. The PLC-based emulsion explosive production line control system is characterized by: It includes total process weight analysis module, emulsification analysis module and emulsification traction analysis module; The total process weight analysis module is used to analyze multiple production processes in the emulsion explosive production line based on PLC, and obtain the process connection parameters of each production process based on the analysis, where the production process includes emulsification process, cooling process, sensitization process and packaging process; The emulsification analysis module is used to analyze the emulsification process in the emulsion explosive production line, obtain the emulsification fluctuation range based on the analysis result, and obtain the emulsification influence range corresponding to each process other than the emulsification process in multiple production processes of the emulsion explosive production line based on the emulsification fluctuation range; The emulsion traction analysis module is used to control multiple production processes in the emulsion explosive production line based on the real-time acquired emulsification process data and emulsification influence interval when the emulsion explosive production line is in operation; The total process weight analysis module includes a multi-process analysis unit, and the multi-process analysis unit is configured with a multi-process analysis strategy. The multi-process analysis strategy includes: Obtain multiple preparation ratios of the oxidant aqueous solution and the oil phase material during the emulsification process, and record them as emulsified mixing ratios, wherein the emulsified mixing ratio is the volume of the oxidant aqueous solution in the preparation ratio divided by the volume of the oil phase material; establish a plane rectangular coordinate system, recorded as a mixed analysis coordinate system, wherein the X-axis of the mixed analysis coordinate system is a constant axis, and the unit of the Y-axis is time; The maximum volume of oxidant aqueous solution allowed to be mixed at one time in the emulsion explosive production line is recorded as L max ; For any emulsified mixing ratio: set the value in the X-axis of the mixing analysis coordinate system to the volume of the oxidant aqueous solution when the oxidant aqueous solution is premixed with the oil phase material; based on the PLC, the volume of the oxidant aqueous solution is increased from 0 to L when the premixing is performed at the emulsified mixing ratio. max The time required for premixing is used to draw a curve of the relationship between the volume of the oxidant aqueous solution and the time in the mixing analysis coordinate system, and recorded as an emulsification mixing curve, wherein the premixing is the mixing of the oxidant aqueous solution and the oil phase material in the mixing equipment before the emulsification process; Obtain the emulsified mixing curves corresponding to all emulsified mixing ratios, and place all the emulsified mixing curves in the same mixing analysis coordinate system; The multi-process analysis strategy also includes: The minimum volume of the oxidant aqueous solution used in the emulsification process is recorded as X1, and the intersection of the straight line X=X1 and all the emulsified mixing curves in the mixing analysis coordinate system are recorded as the bottom line limit point; for any bottom line limit point, the ratio of the emulsified mixing ratio corresponding to the emulsified mixing curve where the bottom line limit point is located and X1 is recorded as the volume connection ratio, and the ratio of the emulsified mixing ratio corresponding to the emulsified mixing curve where the bottom line limit point is located and the ordinate of the bottom line limit point is recorded as the time connection ratio; The process connection parameters of the emulsification process are obtained using a comprehensive connection algorithm. The comprehensive connection algorithm is: , where H is the process connection parameter of the emulsification process, c is the number of emulsification mixing curves, T i is the volume connection ratio of the ith emulsified mixing curve among all emulsified mixing curves, S i is the time connection ratio of the i-th emulsification mixing curve among all emulsification mixing curves; The multi-process analysis strategy also includes: The interval consisting of the minimum volume and the maximum volume of the emulsified matrix allowed to be placed in the sensitization device at one time during the sensitization process is recorded as the sensitization treatment interval; for any emulsification mixing ratio, the discharge temperature of the oxidant aqueous solution and the oil phase material after being mixed in the emulsification mixing ratio to form an emulsified matrix in the emulsifier is recorded as the emulsification discharge temperature; the emulsification discharge temperature corresponding to the emulsification mixing ratio is obtained; The minimum value of the emulsified matrix at each emulsified drug dispensing temperature that is allowed to be placed in the sensitization device at one time is recorded as the temperature sensitization low value; the interval composed of all temperature sensitization low values ​​is obtained and recorded as the sensitization temperature interval; Denoted as the process connection parameter of the sensitization process, where M min is the minimum value of the sensitization treatment interval, m min is the minimum value of the sensitization temperature range, M sq is the average value of the maximum and minimum values ​​in the sensitization treatment interval, m sq is the average value of the maximum and minimum values ​​in the sensitization temperature range; The multi-process analysis strategy also includes: The minimum volume of the emulsified matrix that can be put into the cooling device at one time during the cooling process is recorded as the process connection parameter of the cooling process; The maximum volume of medicine rolls consumed by the automatic charging system in a single time during the packaging process is recorded as the process connection parameter of the packaging process.

2. The PLC-based emulsion explosive production line control system according to claim 1 is characterized in that: The emulsion analysis module includes an emulsion analysis unit, and the emulsion analysis unit is configured with an emulsion analysis strategy, which includes: [H, T max +S max ] is recorded as the emulsification fluctuation range of the emulsification process, where T max is the maximum value among all volume connection ratios, S max It is the maximum value among all time connection ratios; For any value α in the emulsification fluctuation range, when the sum of the volume connection ratio and the time connection ratio in the emulsification process is α and the volume of the oxidant aqueous solution used is X1, all combinations of emulsification mixing ratios and times existing in all emulsification mixing curves are obtained based on PLC, and recorded as emulsification influence combinations; For any emulsification effect combination, the emulsification process consisting of the emulsification effect combination and the oxidant aqueous solution with a volume of X1 is simulated based on PLC, and the sensitization treatment process, cooling process and packaging process are simulated based on the simulation results, and recorded as the emulsification subsequent simulation.

3. The PLC-based emulsion explosive production line control system according to claim 2 is characterized in that: Emulsion analysis strategies also include: The value when the emulsified matrix is ​​placed in the sensitization device once in the subsequent emulsification simulation is recorded as the sensitization impact value; the value when the emulsified matrix is ​​placed in the cooling device once in the subsequent emulsification simulation is recorded as the cooling impact value; the volume of the drug roll consumed by the automatic charging system once in the subsequent emulsification simulation is recorded as the packaging impact value; Obtain the sensitization influence values, cooling influence values ​​and packaging influence values ​​of all emulsification influence combinations of all values ​​in the emulsification fluctuation interval, and record the interval formed by all sensitization influence values ​​and the process connection parameters of the sensitization treatment process as the emulsification influence interval of the sensitization treatment process; The interval formed by all cooling influence values ​​and the process connection parameters of the cooling process is recorded as the emulsification influence interval of the cooling process; The interval formed by all packaging impact values ​​and the process connection parameters of the packaging process is recorded as the emulsification impact interval of the packaging process.

4. The PLC-based emulsion explosive production line control system according to claim 3 is characterized in that: The emulsification traction analysis module includes an emulsification influence control unit, and the emulsification influence control unit is configured with an emulsification influence control strategy, which includes: When the emulsion explosive production line is in operation, the emulsification mixing ratio selected before pretreatment, the volume of the oxidant aqueous solution put into the emulsifier, and the volume of the oil phase material put into the emulsifier are obtained in real time, and the corresponding volume connection ratio and time connection ratio are calculated based on the PLC, and the sum of the calculated volume connection ratio and time connection ratio is recorded as the real-time emulsification parameter, wherein X1 in the volume connection ratio formula calculated when the emulsion explosive production line is in operation is adjusted to the volume of the oxidant aqueous solution obtained in real time; When the real-time emulsification parameters are within the emulsification fluctuation range, the sensitization device is started.

5. The PLC-based emulsion explosive production line control system according to claim 4 is characterized in that: Emulsification impact control strategies also include: When the emulsion explosive production line is in operation, when the volume of the emulsified matrix put into the sensitizing device at a time is within the emulsification influence interval of the sensitizing treatment process, the treatment time of the sensitizing device is obtained in real time, recorded as t1, and the working state of the cooling device is set to the start state within t1; When the volume of the emulsified matrix placed in the cooling device at one time is within the emulsification influence interval of the cooling process, the processing time of the cooling device is obtained in real time, recorded as t2, and the working state of the automatic charging system is set to the start state within t2; When the volume of the single consumed explosive roll by the automatic charging system is within the emulsification influence interval of the packaging process, the production process of the emulsion explosive is recorded as completed; When the volume of the emulsified matrix placed in the sensitizing device at one time is not within the emulsification influence interval of the sensitizing process, the production process of the emulsion explosive is recorded as a process interruption, and the process of the sensitizing device is stopped; when the volume of the emulsified matrix placed in the cooling device at one time is not within the emulsification influence interval of the cooling process, the production process of the emulsion explosive is recorded as a process interruption, and the process of the cooling device is stopped; When the volume of the single consumed explosive roll by the automatic charging system is not within the emulsification influence interval of the packaging process, the production process of the emulsion explosive is recorded as a process interruption, and the process of the automatic charging system is stopped.

6. A PLC-based emulsion explosive production line control method, applicable to a PLC-based emulsion explosive production line control system according to any one of claims 1 to 5, characterized in that: The steps include: Analyze multiple production processes in the emulsion explosive production line based on PLC, and obtain the process connection parameters of each production process based on the analysis; Analyze the emulsification process in the emulsion explosive production line, obtain the emulsification fluctuation range based on the analysis result, and obtain the emulsification influence range corresponding to each process other than the emulsification process in multiple production processes of the emulsion explosive production line based on the emulsification fluctuation range; When the emulsion explosive production line is in operation, multiple production processes in the emulsion explosive production line are controlled based on real-time acquired emulsification process data and emulsification influence intervals.

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