Method and device for determining dust emission intensity of coal mine blasting, and electronic equipment

Abstract

The present invention discloses a method and device for determining the dust emission intensity of coal mine blasting, and an electronic device. The method belongs to the field of mining engineering, and includes: obtaining the total mass of the coal rock layer to be blasted and the blasting engineering parameters, wherein the blasting engineering parameters are used to characterize the parameters used when blasting the coal rock layer; based on the blasting engineering parameters and the total mass, determining the target dust emission amount generated by the coal rock layer when blasting, wherein the target dust emission amount is used to characterize the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters; based on the target dust emission amount, determining the dust emission intensity of the coal rock layer when blasting. The present invention solves the technical problem that the accuracy of calculating the emission intensity of blasting dust pollution in the related art is low.

Description

Technical Field

[0001] The present invention relates to the field of mining engineering, and in particular to a method and device for determining dust emission intensity of coal mine blasting, and electronic equipment. Background Art

[0002] In open-pit coal mining operations, step blasting is a commonly used mining method, which achieves the purpose of mining the ore body efficiently and safely by controlling the blasting parameters. However, the blasting process will inevitably produce a large amount of dust, which not only pollutes the environment, but also has a serious impact on the health of miners, especially long-term exposure to high-concentration dust environments, which may lead to occupational diseases such as pneumoconiosis. Dust may also reduce visibility, affect mining efficiency, and even cause explosion accidents under certain conditions, increasing safety hazards.

[0003] At present, the control and management of dust pollution from step blasting in open-pit coal mines mainly rely on empirical formulas and on-site monitoring data. Empirical formulas are often based on historical data and the experience of on-site engineers. However, due to the variability of blasting conditions and the complexity of the causes of dust generation, the accuracy of calculating dust emission through empirical formulas is low. Although on-site monitoring data can directly reflect the dust emission during the actual blasting process, the accuracy and sampling frequency of the monitoring equipment limit its scope of application. Especially under extreme blasting conditions, the monitoring equipment has low measurement accuracy for dust emission and may even fail to work properly.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a method and device for determining dust emission intensity of coal mine blasting, and electronic equipment, so as to at least solve the technical problem of low accuracy in calculating blasting dust pollution emission intensity in related technologies.

[0006] According to one aspect of an embodiment of the present invention, there is provided a method for determining the dust emission intensity of coal mine blasting, comprising: obtaining the total mass of a coal rock layer to be blasted and blasting engineering parameters, wherein the blasting engineering parameters are used to characterize the parameters used when blasting the coal rock layer; based on the blasting engineering parameters and the total mass, determining a target dust amount generated by the coal rock layer when blasting, wherein the target dust amount is used to characterize the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters; based on the target dust amount, determining the dust emission intensity of the coal rock layer when blasting.

[0007] Furthermore, based on the blasting engineering parameters and the total mass, the target dust amount generated by the coal rock layer when blasting is determined, including: determining the impact load that matches the blasting engineering parameters according to a first mapping function, wherein the impact load is used to characterize the pressure intensity to which the coal rock layer is subjected when blasting according to the blasting engineering parameters, and the first mapping function is used to characterize the mapping function between the impact load and the blasting engineering parameters; determining the mass percentage that matches the impact load according to the second mapping function, wherein the mass percentage is used to characterize the ratio of the total mass of dust generated by the coal rock layer when blasting to the total mass of the coal rock layer, and the second mapping function is used to characterize the mapping function between the impact load and the mass percentage; based on the total mass and the mass percentage, the target dust amount is determined.

[0008] Furthermore, according to the second mapping function, the mass percentage matching the impact load is determined, including: obtaining a preset blasting coefficient and a preset compensation constant matching the coal stratum; obtaining an initial percentage based on the product of the preset blasting coefficient and the impact load; and obtaining a mass percentage based on the sum of the initial percentage and the preset compensation coefficient.

[0009] Furthermore, the coal rock stratum includes a coal seam and a rock stratum, the preset blasting coefficient matching the coal seam is a first blasting coefficient, the preset blasting coefficient matching the rock stratum is a second blasting coefficient, the first blasting coefficient is smaller than the second blasting coefficient, the preset compensation constant corresponding to the coal seam is a first compensation constant, the preset compensation constant corresponding to the rock stratum is a second compensation constant, and the first compensation constant is smaller than the second compensation constant.

[0010] Furthermore, the blasting engineering parameters include: explosive unit consumption, and according to the first mapping function, determining the impact load matching the blasting engineering parameters, including: obtaining the average hole spacing and attenuation coefficient of the blasting device; adjusting the explosive unit consumption according to the first power value to obtain the first unit consumption; obtaining the second unit consumption based on the quotient of the first unit consumption and the average hole spacing; adjusting the second unit consumption according to the second power value to obtain the third unit consumption; and obtaining the impact load based on the product of the third unit consumption and the attenuation coefficient.

[0011] Furthermore, the method also includes: obtaining a blasting gas pressure range corresponding to the coal rock layer, wherein the blasting gas pressure range is used to characterize the range of gas pressure intensity that can cause damage to the coal rock layer; constructing multiple initial impact loads based on the blasting gas pressure range; blasting multiple groups of coal rock samples based on different initial impact loads to obtain multiple initial percentages, wherein different initial percentages are used to characterize the ratio of the total mass of dust generated when different coal rock samples are blasted using the initial impact load to the total mass of different coal rock samples; constructing a second mapping function based on multiple initial impact loads and multiple initial percentages corresponding to different impact loads.

[0012] Further, the coal rock sample includes: a coal sample, multiple initial percentages include: multiple first percentages corresponding to the coal sample, and the second mapping function includes: a coal seam mapping function corresponding to the coal sample; based on multiple initial impact loads, and multiple initial percentages corresponding to different impact loads, a second mapping function is constructed, including: based on multiple initial impact loads and the first percentages corresponding to different impact loads, a first blasting coefficient and a first compensation constant are constructed; based on the first blasting coefficient and the first compensation constant, a coal seam mapping function is constructed.

[0013] Furthermore, the coal rock sample also includes: a rock sample, the multiple initial percentages include: multiple second percentages corresponding to the rock sample, and the second mapping function also includes: a rock formation mapping function corresponding to the rock sample; based on multiple initial impact loads, and multiple initial percentages corresponding to different impact loads, a first mapping function is constructed, including: based on multiple initial impact loads and the second percentages corresponding to different impact loads, a second blasting coefficient and a second compensation constant are constructed; based on the second blasting coefficient and the second compensation constant, a rock formation mapping function is constructed.

[0014] According to another aspect of an embodiment of the present invention, there is also provided a device for calculating the dust emission intensity of coal mine blasting, including: a parameter acquisition module, used to acquire the total mass of the coal rock layer currently being blasted and the blasting engineering parameters, wherein the blasting engineering parameters are used to characterize the parameters used when blasting the coal rock layer; a dust quantity determination module, used to determine the target dust quantity generated by the coal rock layer when blasting based on the blasting engineering parameters and the total mass, wherein the target dust quantity is used to characterize the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters; an intensity determination module, used to determine the dust emission intensity of the coal rock layer when blasting based on the target dust quantity.

[0015] According to another aspect of an embodiment of the present invention, there is further provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the method in each embodiment of the present invention is executed when the program is running.

[0016] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the methods in various embodiments of the present invention.

[0017] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0018] According to another aspect of an embodiment of the present invention, a computer program product is provided, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0019] According to another aspect of the embodiments of the present invention, a computer program is further provided. When the computer program is executed by a processor, the methods in the embodiments of the present invention are implemented.

[0020] In an embodiment of the present invention, the total mass of the coal rock layer to be blasted and the blasting engineering parameters are obtained; based on the blasting engineering parameters and the total mass, the target dust emission amount generated by the coal rock layer during blasting is determined; based on the target dust emission amount, the dust emission intensity of the coal rock layer during blasting is determined. By analyzing the above-mentioned total mass, the degree of coal rock layer fragmentation after blasting and the distribution of fragments after fragmentation can be estimated. By analyzing the above-mentioned blasting engineering parameters, the impact range under different blasting conditions can be quantified. Combined with the analysis results of the total mass and blasting engineering parameters, a mapping relationship between the blasting dust emission amount and the total mass and blasting engineering parameters can be established, so as to facilitate the simulation test of the coal rock layer to be blasted, and then calculate the dust emission amount in the actual blasting process based on the test data, so as to achieve the purpose of accurately calculating the dust emission amount in the open-pit coal mine step blasting project, thereby achieving the technical effect of improving the calculation accuracy of the dust emission amount in the open-pit coal mine step blasting project, and then solving the technical problem of low accuracy in calculating the blasting dust pollution emission intensity in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 is a flow chart of a method for determining dust emission intensity of coal mine blasting according to an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of an optional change law of average particle size of coal sample and rock sample fragments with impact gas pressure according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of an optional relationship between the mass ratio of coal seam blasting dust and the impact gas pressure according to an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of an optional relationship between the mass ratio of rock blasting dust and the impact gas pressure according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of a device for calculating dust emission intensity of coal mine blasting according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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 should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] According to an embodiment of the present invention, an embodiment of a method for determining the dust emission intensity of coal mine blasting is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0030] Figure 1 is a flow chart of a method for determining dust emission intensity of coal mine blasting according to an embodiment of the present invention, such as Figure 1 As shown, the method comprises the following steps:

[0031] Step S102, obtaining the total mass of the coal-rock layer to be blasted and blasting engineering parameters, wherein the blasting engineering parameters are used to characterize the parameters used when blasting the coal-rock layer.

[0032] The total mass may be the mass of all coal and rock included in the coal-rock layer to be blasted. The blasting engineering parameters may refer to various parameters that need to be set or considered during the blasting design and implementation process. For example, the blasting engineering parameters may include at least one or more of the following: particle size distribution parameters, impact load, indoor test impact gas pressure, but are not limited thereto.

[0033] In an optional embodiment, considering that the greater the total mass of the above-mentioned coal rock layer, the greater the potential dust generation, and the above-mentioned blasting engineering parameters are parameters used when blasting the above-mentioned coal rock layer, the setting of this parameter will significantly affect the degree of crushing of the coal rock layer and the particle size distribution of the dust particles, thereby affecting the blasting dust generation. Therefore, the blasting personnel can first explore the area to be blasted to obtain geological characteristic data including the total mass of the above-mentioned coal rock layer. Then, the blasting personnel can import the above-mentioned data into the blasting dust generation measurement system (hereinafter referred to as the measurement system), and the measurement system can further determine the blasting engineering parameters based on the imported data according to the geological characteristics of the above-mentioned coal rock layer, thereby providing a data basis for the subsequent calculation of the blasting dust generation.

[0034] For example, in order to more accurately obtain the total mass of the above-mentioned coal-rock layer and blasting engineering parameters, blasters can first determine the scope and thickness of the coal-rock layer and the ratio of coal to rock and other geological characteristic data through geological exploration methods such as drilling, geological radar, seismic exploration, etc. Then, the blasters can input the above data into the measurement system, and the measurement system can calculate the total mass of the above-mentioned coal-rock layer based on the received data. Then, based on the above-mentioned total mass, the measurement system can further calculate the above-mentioned block size distribution parameters, impact load, indoor test impact pressure and other blasting engineering parameters, so as to accurately control the blasting of the coal-rock layer and provide a more accurate calculation basis for the calculation of the amount of blasting dust.

[0035] Step S104, based on the blasting engineering parameters and the total mass, determining the target dust amount generated when the coal rock layer is blasted, wherein the target dust amount is used to characterize the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters.

[0036] The above-mentioned target dust emission amount may refer to the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters.

[0037] In an optional embodiment, taking into account that the above-mentioned total mass and blasting engineering parameters directly determine the release mode and intensity of the blasting energy, the total mass and blasting engineering parameters are closely related to the amount of dust generated by blasting. In order to accurately evaluate the total mass of dust generated after the actual blasting, the measurement system can be based on the blasting engineering parameters and the total mass. It can be inferred that the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters, thereby providing a more accurate theoretical basis for the subsequent evaluation of dust emission intensity.

[0038] For example, the measurement system has determined the above-mentioned blasting engineering parameters and total mass. Considering that the above-mentioned target dust emission may include the coal seam blasting dust emission and the rock stratum blasting dust emission, the measurement system can calculate the coal seam blasting dust emission and the rock stratum blasting dust emission based on the blasting engineering parameters and the total mass, respectively, and sum the above-mentioned coal seam blasting dust emission and rock stratum blasting dust emission to obtain the above-mentioned target dust emission.

[0039] Step S106, based on the target dust emission amount, determining the dust emission intensity of the coal rock layer during blasting.

[0040] The above-mentioned dust emission intensity may be the ratio of the amount of dust generated during the blasting process to the blasting range.

[0041] In an optional embodiment, considering that the above-mentioned target dust emission amount is calculated based on the total mass of the above-mentioned coal rock layer and the blasting engineering parameters, the target dust emission amount can more accurately reflect the total mass of dust generated during the actual blasting process. In order to accurately evaluate the dust emission intensity of the coal rock layer during actual blasting, the measurement system can establish a mathematical relationship between the above-mentioned target dust emission amount and the dust emission intensity, thereby further calculating the dust emission intensity of the coal rock layer during blasting based on the target dust emission amount.

[0042] For example, the measurement system has calculated the target dust volume. In order to accurately calculate the dust emission intensity, the measurement system can establish a functional relationship between the target dust volume and the dust emission intensity based on the blasting engineering parameters by using linear fitting analysis or multi-regression analysis methods to determine the dust emission intensity corresponding to the target dust volume. The calculated dust emission intensity can then be used to more accurately evaluate the actual emission intensity.

[0043] In an embodiment of the present invention, the total mass of the coal rock layer to be blasted and the blasting engineering parameters are obtained; based on the blasting engineering parameters and the total mass, the target dust emission amount generated by the coal rock layer during blasting is determined; based on the target dust emission amount, the dust emission intensity of the coal rock layer during blasting is determined. By analyzing the above-mentioned total mass, the degree of coal rock layer fragmentation after blasting and the distribution of fragments after fragmentation can be estimated. By analyzing the above-mentioned blasting engineering parameters, the impact range under different blasting conditions can be quantified. Combined with the analysis results of the total mass and blasting engineering parameters, a mapping relationship between the blasting dust emission amount and the total mass and blasting engineering parameters can be established, so as to facilitate the simulation test of the coal rock layer to be blasted, and then calculate the dust emission amount in the actual blasting process based on the test data, so as to achieve the purpose of accurately calculating the dust emission amount in the open-pit coal mine step blasting project, thereby achieving the technical effect of improving the calculation accuracy of the dust emission amount in the open-pit coal mine step blasting project, and then solving the technical problem of low accuracy in calculating the blasting dust pollution emission intensity in the related technology.

[0044] Furthermore, based on the blasting engineering parameters and the total mass, the target dust amount generated by the coal rock layer when blasting is determined, including: determining the impact load that matches the blasting engineering parameters according to a first mapping function, wherein the impact load is used to characterize the pressure intensity to which the coal rock layer is subjected when blasting according to the blasting engineering parameters, and the first mapping function is used to characterize the mapping function between the impact load and the blasting engineering parameters; determining the mass percentage that matches the impact load according to the second mapping function, wherein the mass percentage is used to characterize the ratio of the total mass of dust generated by the coal rock layer when blasting to the total mass of the coal rock layer, and the second mapping function is used to characterize the mapping function between the impact load and the mass percentage; based on the total mass and the mass percentage, the target dust amount is determined.

[0045] The first mapping function may be a function for determining an impact load that matches the blasting engineering parameters. The impact load may refer to the value of the pressure intensity to which the coal-rock layer is subjected when the coal-rock layer is blasted according to the blasting engineering parameters. The second mapping function may be a function for determining a mass percentage that matches the impact load.

[0046] In an optional embodiment, considering that the impact loads under different blasting engineering parameters are different, in order to more accurately calculate the impact loads generated in the actual blasting process based on the determined blasting engineering parameters, the measurement system can establish a mapping relationship between the impact load and the blasting engineering parameters, that is, the above-mentioned first mapping function, and the measurement system can determine the impact load that matches the blasting engineering parameters based on the first mapping function. Similarly, under different impact loads, the ratio of the total mass of dust generated to the total mass of the coal and rock layer is also different. In order to further deduce the above-mentioned mass percentage based on the above-calculated impact load, the measurement system can further establish a mapping relationship between the impact load and the mass percentage, that is, the above-mentioned second mapping function, and the measurement system can determine the mass percentage that matches the impact load based on the second mapping function. Then, the measurement system can multiply the total mass and the mass percentage, and the product obtained is the target dust emission.

[0047] For example, the measurement system has determined the blasting engineering parameters. In order to more accurately determine the target dust emission, the measurement system can use a linear fitting method to establish a mapping relationship between the impact load and the blasting engineering parameters, thereby obtaining the above-mentioned first mapping function. The measurement system can calculate the value of the impact load based on the first mapping function and the above-mentioned blasting engineering parameters. Then, the measurement system can also use a linear fitting method to establish a mapping relationship between the impact load and the mass percentage, thereby obtaining the above-mentioned second mapping function. The measurement system can be based on the second mapping function and the above-mentioned calculated impact load, and can further calculate the ratio of the total mass of dust generated under the current impact load to the total mass of the coal rock layer, thereby obtaining the above-mentioned mass percentage. Finally, the measurement system can multiply the total mass and the mass percentage to obtain the above-mentioned target dust emission.

[0048] Furthermore, according to the second mapping function, the mass percentage matching the impact load is determined, including: obtaining a preset blasting coefficient and a preset compensation constant matching the coal stratum; obtaining an initial percentage based on the product of the preset blasting coefficient and the impact load; and obtaining a mass percentage based on the sum of the initial percentage and the preset compensation coefficient.

[0049] The preset blasting coefficient may be a coefficient pre-set in the second mapping function for calculating the amount of blasting dust. The preset compensation constant may be a constant pre-set in the second mapping function for compensating for errors caused by changes in the physical properties of coal and rock formations, differences in blasting environments, or simplification of calculation models. The initial percentage may be the product of the preset blasting coefficient and the impact load.

[0050] In an optional embodiment, considering that the coal rock layer may contain different geological structures, and these geological structures may have different physical and chemical properties, such as hardness, crack distribution, water content, porosity, etc., the above characteristics may affect the accuracy of the calculation of the blasting effect and dust emission intensity. Therefore, the measurement system can determine the preset blasting coefficient and preset compensation constant corresponding to the current coal rock layer structure through linear fitting analysis based on a large amount of blasting experimental data and field exploration data, targeting the characteristics of a specific coal rock layer, so as to more accurately reflect the response of the current coal rock layer structure under the above impact load. Specifically, according to the above second mapping function, the measurement system can first calculate the initial percentage based on the product of the above preset blasting coefficient and the impact load, and then the measurement system can further calculate the mass percentage based on the sum of the initial percentage and the above preset compensation coefficient, thereby improving the calculation accuracy of the mass percentage, and then enabling the measurement system to more accurately estimate the dust emission under the current impact load.

[0051] For example, in order to more accurately calculate the above mass percentage, the blasting personnel can conduct on-site exploration of the coal and rock layer to be blasted in advance to obtain the geological characteristic data of the coal and rock layer to be blasted, and input the data into the measurement system. The measurement system can perform multiple blasting simulation experiments based on the above geological characteristic data to obtain multiple blasting test data. Then, the measurement system can further obtain the preset blasting coefficient and preset compensation constant corresponding to the current coal and rock layer structure through linear fitting analysis based on the above geological characteristic data and blasting test data, so as to more accurately reflect the response of the current coal and rock layer structure to the above impact load. Finally, the measurement system can substitute the determined preset blasting coefficient and preset compensation constant into the above second mapping function. According to the second mapping function, the measurement system can calculate the product of the preset blasting coefficient and the impact load to obtain the initial percentage, and can further calculate the sum of the initial percentage and the preset compensation coefficient to obtain the mass percentage.

[0052] Furthermore, the coal rock stratum includes a coal seam and a rock stratum, the preset blasting coefficient matching the coal seam is a first blasting coefficient, the preset blasting coefficient matching the rock stratum is a second blasting coefficient, the first blasting coefficient is smaller than the second blasting coefficient, the preset compensation constant corresponding to the coal seam is a first compensation constant, the preset compensation constant corresponding to the rock stratum is a second compensation constant, and the first compensation constant is smaller than the second compensation constant.

[0053] The first blasting coefficient may be a preset blasting coefficient specifically used to calculate the amount of dust generated by coal seam blasting. The second blasting coefficient may be a preset blasting coefficient specifically used to calculate the amount of dust generated by rock strata blasting. The first compensation constant may be a preset compensation constant specifically used to calculate the amount of dust generated by coal seam blasting. The second compensation constant may be a preset compensation constant specifically used to calculate the amount of dust generated by rock strata blasting.

[0054] In an alternative embodiment, considering that the geological structure in the coal and rock strata includes coal seams and rock strata, in order to optimize the preset blasting coefficient and the preset compensation constant in the above second mapping function according to the geological characteristics of the coal seams and rock strata, the measurement system may define the preset blasting coefficient matching the coal seam as the first blasting coefficient, and may define the preset compensation constant corresponding to the coal seam as the first compensation constant. At the same time, the measurement system may define the preset blasting coefficient matching the rock strata as the second blasting coefficient, and may define the preset compensation constant corresponding to the rock strata as the second compensation constant. Further considering the differences in geological characteristics between the coal seam and the rock strata, the above first blasting coefficient may be set to be less than the above second blasting coefficient, and the above first compensation constant may be set to be less than the above second compensation constant. Through the above refinement process of the preset blasting coefficient and the preset compensation constant, the dust generation amount corresponding to the coal seam and the rock strata can be calculated more accurately.

[0055] For example, in order to enable the above preset blasting coefficient and the preset compensation constant to more accurately reflect the blasting sensitivity of the coal seam and the rock strata under the above impact load, so as to more accurately calculate the dust generation amount corresponding to the coal seam and the rock strata, the measurement system may analyze the geological characteristics of the coal seam to be blasted, define the preset blasting coefficient matching the coal seam as the first blasting coefficient, and may define the preset compensation constant corresponding to the coal seam as the first compensation constant. At the same time, the measurement system may analyze the geological characteristics of the rock strata to be blasted, define the preset blasting coefficient matching the rock strata as the second blasting coefficient, and may define the preset compensation constant corresponding to the rock strata as the second compensation constant. Specifically, the measurement system may determine the value of the above first blasting coefficient as A and determine the value of the above second blasting coefficient as B based on the on-site exploration data and the blasting experiment data, where A and B satisfy A < B. The measurement system may also determine the above first compensation constant as C and determine the above second compensation constant as D based on the above two types of data, where C and D satisfy C < D.

[0056] Furthermore, the blasting engineering parameters include: the unit explosive consumption. According to the first mapping function, determine the impact load matching the blasting engineering parameters, including: obtaining the average hole spacing and the attenuation coefficient of the blasting device; adjusting the unit explosive consumption according to the first power value to obtain the first unit consumption; obtaining the second unit consumption based on the quotient of the first unit consumption and the average hole spacing; adjusting the second unit consumption according to the second power value to obtain the third unit consumption; obtaining the impact load based on the product of the third unit consumption and the attenuation coefficient.

[0057] The above-mentioned explosive unit consumption may refer to the explosive charge of each coal-rock stratum blasting hole. The above-mentioned average hole spacing may refer to the average distance between multiple blasting holes in the coal-rock stratum blasting project. The above-mentioned attenuation coefficient may be a coefficient used to describe the attenuation of the intensity of the shock wave or energy generated by the blasting during the propagation process. The above-mentioned first power value may be a power value used to calculate the above-mentioned first unit consumption, for example, the above-mentioned first power value may be 1 / 3, but is not limited to this. The above-mentioned second power value may be a power value used to calculate the third unit consumption, for example, the above-mentioned second power value may be 1.31, but is not limited to this.

[0058] In an optional embodiment, considering that the selection of hole spacing directly affects the blasting effect of the coal rock layer in the design of the blasting scheme, if the hole spacing is too small, it may lead to excessive concentration of energy, resulting in unnecessary blasting expenses. If the hole spacing is too large, some areas may not be fully blasted, leaving larger pieces of rock, affecting the efficiency of subsequent mining operations. In addition, during the blasting process, the shock wave and energy generated by the explosion of explosives will propagate and gradually decay in the coal rock layer, and the attenuation coefficient can describe the rate of energy decay, which helps the measurement system to accurately predict the blasting effect and the amount of blasting dust. Therefore, the measurement system can first obtain the average hole spacing and attenuation coefficient of the blasting device to provide a reliable data basis for the subsequent calculation of the amount of blasting dust. Further considering that the relationship between the amount of blasting dust and the amount of explosives is not a simple linear relationship, there may be a saturation phenomenon of energy utilization efficiency during the blasting process. In order to more accurately describe the nonlinear relationship between the amount of blasting dust and the amount of explosives, the measurement system can square the explosive consumption according to the first power value to obtain the first consumption, and based on the quotient of the first consumption and the average hole spacing, the second consumption is obtained. Then the measurement system can square the second consumption according to the second power value to obtain the third consumption. Finally, the measurement system can calculate the impact load by the product of the third consumption and the attenuation coefficient, so that the impact load calculation result is closer to the actual situation.

[0059] For example, the measurement system can calculate the impact load according to the following formula to improve the calculation accuracy of the impact load:

[0060]

[0061] In the formula, P represents the above impact load, η is the above attenuation coefficient, k is the empirical coefficient, Q is the explosive unit consumption, the unit of explosive unit consumption is kg, β is the above first power value, α is the above second power value, R is the above average hole distance, the unit of the average hole distance is m. The measurement system can first determine the values ​​of the parameters in the above formula by analyzing the field exploration data and laboratory blasting data as follows: the value of the attenuation coefficient η can be 0.49, the value of the empirical coefficient k can be 0.67, the value of the first power value β can be 1 / 3, the value of the second power value α can be 1.31, and the average hole distance R can be 1m. At this time, the measurement system can calculate the corresponding impact load according to the value of the explosive unit consumption according to the above formula.

[0062] It should be noted that the values ​​of the above-mentioned attenuation coefficient, empirical coefficient, first power value, second power value and other parameters are only exemplary. The staff can set them according to actual needs and are not limited here.

[0063] Furthermore, the method also includes: obtaining a blasting gas pressure range corresponding to the coal rock layer, wherein the blasting gas pressure range is used to characterize the range of gas pressure strength that can cause damage to the coal rock layer; constructing multiple initial impact loads based on the blasting gas pressure range; blasting multiple groups of coal rock samples based on different initial impact loads to obtain multiple initial percentages, wherein different initial percentages are used to characterize the ratio of the total mass of dust generated when different coal rock samples are blasted using the initial impact load to the total mass of different coal rock samples; constructing a second mapping function based on multiple initial impact loads and multiple initial percentages corresponding to different impact loads.

[0064] The above-mentioned blasting gas pressure range may be a range of gas pressure strengths that can damage coal and rock layers. The above-mentioned initial impact load may be an impact load corresponding to different blasting gas pressures in the above-mentioned blasting gas pressure range.

[0065] In an optional embodiment, considering that different gas pressure intensities correspond to different impact loads, and different impact loads will cause the coal rock layer to produce shock waves and pressure waves of different intensities, thereby producing different blasting effects, that is, the degree of crushing and the distribution of crushed particle size of the coal rock layer, therefore, the measurement system can first determine a blasting gas pressure range that can fully crush the coal rock layer without causing excessive damage (causing unnecessary waste of resources and increasing dust emissions) through experiments. Then, the measurement system can construct multiple initial impact loads based on the above-mentioned blasting gas pressure range to facilitate determining the response characteristics of the coal rock layer to different impact loads. Subsequently, the measurement system can blast multiple groups of coal rock samples based on different initial impact loads to obtain multiple initial percentages to quantitatively analyze the relationship between the total mass of dust and the total mass of different coal rock samples. Finally, the measurement system can construct a second mapping function based on multiple initial impact loads and multiple initial percentages corresponding to different impact loads, thereby improving the accuracy and applicability of the second mapping function.

[0066] For example, in order to accurately determine the influence of different impact loads on the crushing effect of coal rock layer, so as to more accurately construct the second mapping function, the measurement system can conduct a pre-test in advance to determine that the lower limit of the blasting pressure that can cause the destruction of the coal rock sample is 0.13MPa, and the upper limit of the blasting pressure can be set to 2.0MPa, so as to determine the blasting pressure range corresponding to the above coal rock layer. Then, the measurement system can use the SHPB (Spl it Hopkinson Pressure Bar) test system to design the impact load. The measurement system can design 10 groups of impact tests based on the above blasting pressure range, and the impact loads are 0.13MPa, 0.17MPa, 0.25MPa, 0.30MPa, 0.50MPa, 0.70MPa, 0.90MPa, 1.20MPa, 1.50MPa, and 2.0MPa respectively. Furthermore, the measurement system can perform dynamic compression tests on multiple groups of coal and rock samples based on the above test design, thereby obtaining multiple initial percentages, and the measurement system can use the above initial percentages as the particle size distribution parameter, that is, the percentage of the particle size mass of the coal and rock fragments after each particle size group is destroyed to the total mass of the sample. Finally, the measurement system can use a linear fitting method to establish a functional relationship between the impact load and the above initial percentages, thereby constructing the above second mapping function.

[0067] It should be noted that the values ​​of the above-mentioned parameters such as the lower limit of blasting gas pressure, the upper limit of blasting gas pressure, the number of impact test groups, and the impact load are only exemplary. The staff can set them according to actual needs and are not limited here.

[0068] Further, the coal rock sample includes: a coal sample, multiple initial percentages include: multiple first percentages corresponding to the coal sample, and the second mapping function includes: a coal seam mapping function corresponding to the coal sample; based on multiple initial impact loads, and multiple initial percentages corresponding to different impact loads, a second mapping function is constructed, including: based on multiple initial impact loads and the first percentages corresponding to different impact loads, a first blasting coefficient and a first compensation constant are constructed; based on the first blasting coefficient and the first compensation constant, a coal seam mapping function is constructed.

[0069] The first percentage may be a ratio of the total mass of dust generated when the coal sample is blasted to the total mass of the coal sample. The coal seam mapping function may be a function for determining the coal seam mass percentage that matches the impact load.

[0070] In an optional embodiment, considering that coal and rock have different geological characteristics such as hardness, brittleness, density, porosity and crack development degree, the above different geological characteristics determine that the crushing mode, crushing degree and dust emission of coal and rock are different when subjected to impact load. In order to establish a mathematical model that can accurately predict the amount of dust generated by coal seam blasting, the measurement system can perform detailed analysis on the coal samples in the coal-rock samples, so that the measurement system can construct the above first blasting coefficient and the above first compensation constant based on multiple initial impact loads and the first percentages corresponding to different impact loads. Furthermore, the measurement system can construct the above second mapping function, that is, the coal seam mapping function, based on the constructed first blasting coefficient and the first compensation constant, to accurately reflect the mapping relationship between the impact load and the coal seam mass percentage.

[0071] For example, in order to accurately construct the above-mentioned coal seam mapping function, the measurement system can conduct SHPB tests on three coal samples. The classification and screening results of the coal samples after the SHPB test show that as the impact gas pressure increases, the degree of coal sample fragmentation increases, the proportion of large-sized blocks gradually decreases, and the proportion of small-sized fragments and powdered coal particles gradually increases. The above test results show that the fragmentation of coal samples has a strong correlation with the impact gas pressure. Furthermore, in order to indicate the degree of coal rock damage under different impact loads, the measurement system can use the average fragment particle size as an evaluation index of the degree of damage. The calculation method of the average fragment particle size is shown in the following formula:

[0072]

[0073] In the formula, δ represents the average particle size of the fragments, i is the screening grade of the grading screen, when i=1, the average particle size is 32.5mm, δ iv is the weighted average particle size of coal rock fragments after destruction under each particle size group, m iv is the percentage of the mass of coal rock fragments after destruction in each particle size group to the total mass of the sample, d ivThe measurement system can use the above calculation method to obtain the mass percentage of coal sample fragments and the average particle size of coal sample fragments under impact gas pressure, as shown in Table 1 below:

[0074] Table 1

[0075]

[0076] Where, P is the impact load, in MPa, M c is the total mass of the three coal samples, in g, m ivc is the percentage of the mass of the i-th group of particles in the total mass after the three samples are destroyed, δ c is the average fragment size of the coal sample, in mm. It can be seen from Table 1 that under different impact gas pressures, the fragmentation characteristics and average particle size of the coal sample after destruction are significantly affected. It can be seen from the content of Table 1 that when the gas pressure increases from 0.13MPa to 2.00MPa, the mass percentage of fragments with the maximum particle size (≥15.0mm) gradually decreases, with a decrease of 95.30%; as the particle size range decreases, the gas pressure corresponding to the maximum value gradually increases; the mass percentage of the two smallest groups of particle size ranges (1.0-2.0mm, 0.0-2.0mm) increases rapidly with the increase of gas pressure. Based on the above test results, the measurement system can construct a first blasting coefficient of 3.9378 and a first compensation constant of -0.2344. Finally, the measurement system can obtain the coal seam mapping function based on linear regression analysis as shown below:

[0077]

[0078] In the formula, is the mass percentage of coal seam blasting dust, and p is the impact gas pressure, in MPa. Furthermore, since the blasting dust emission is the total mass of the blasting area multiplied by the mass percentage, the measurement system can determine the calculation formula for coal seam blasting dust emission according to the actual test data and the above coal seam mapping function according to the following formula:

[0079]

[0080] In the formula, m m is the dust emission from coal seam blasting, ρ m is the coal density, V is the blasting volume, in m 3 , is the mass ratio of coal seam blasting dust. The calculation system is based on the above formula, and the calculation formula for the amount of coal seam blasting dust can be shown as follows:

[0081]

[0082] In the formula, m mis the dust emission from coal seam blasting; Q is the charge in a single hole, in kg; ρ m is the coal density. The units of the above coal density are kg / m 3 ; V is the blasting volume, in m 3 ; R is the average value of hole spacing and row spacing, in m; α and k are both empirical coefficients, where the value of α can be 1.31, and the value of k can be 0.67; η is the attenuation index, and the value of the attenuation coefficient can be 0.49. At this time, the measurement system can calculate the amount of dust generated by blasting of the coal seam based on the above formula.

[0083] Furthermore, the coal rock sample also includes: a rock sample, the multiple initial percentages include: multiple second percentages corresponding to the rock sample, and the second mapping function also includes: a rock formation mapping function corresponding to the rock sample; based on multiple initial impact loads, and multiple initial percentages corresponding to different impact loads, a first mapping function is constructed, including: based on multiple initial impact loads and the second percentages corresponding to different impact loads, a second blasting coefficient and a second compensation constant are constructed; based on the second blasting coefficient and the second compensation constant, a rock formation mapping function is constructed.

[0084] The second percentage may be a ratio of the total mass of dust generated when the rock sample is blasted to the total mass of the rock sample. The rock formation mapping function may be a function for determining the percentage of rock formation mass that matches the impact load.

[0085] In an optional embodiment, considering that the absorption and transmission mode of blasting impact energy of rock strata is different from that of coal strata, in order to establish a mathematical model that can accurately predict the amount of dust generated by blasting of rock strata, the measurement system can perform detailed analysis on the rock samples in the coal-rock samples, so that the measurement system can construct the above-mentioned second blasting coefficient and the above-mentioned second compensation constant based on multiple initial impact loads and the second percentages corresponding to different impact loads. Further, the measurement system can construct the above-mentioned first mapping function, that is, the rock stratum mapping function, based on the constructed second blasting coefficient and the second compensation constant, to accurately reflect the mapping relationship between the impact load and the rock stratum mass percentage.

[0086] For example, in order to accurately construct the above-mentioned rock formation mapping function, the measurement system can conduct SHPB tests on three rock samples. The results of graded screening of the rock samples after the SHPB test show that as the impact pressure increases from 0.13MPa to 2.00MPa, the degree of rock sample crushing is significantly aggravated, the proportion of large fragments gradually decreases, and the proportion of silty debris increases. The measurement system can obtain the mass percentage and average particle size of rock sample fragments under different impact loads through screening calculations, as shown in Table 2 below:

[0087] Table 2

[0088]

[0089] Where, P is the impact load, in MPa, M r is the total mass of the three rock samples, m ivr is the percentage of the mass of the i-th group of particles in the total mass after the three rock samples are destroyed, δ r is the average particle size of the rock sample, in mm. As shown in Table 2, the particle size distribution and average particle size of the rock sample fragments show a certain regularity with the change of the impact pressure. In the process of increasing the impact pressure from 0.13MPa to 2.00MPa, the mass percentage of the fragments with the maximum particle size (≥15.0mm) decreased by 70.29%; the mass of the fragments in the particle size range of 10.0-15.0mm and 5.0-10.0mm showed a random distribution, about 8% and 14% respectively; the mass percentage of the fragments in the particle size range of 2.0-5.0mm, 1.0-2.0mm, and 0.0-2.0mm increased with the increase of air pressure, with an increase of 12.09%, 8.42% and 16.34% respectively. The average particle size of the rock sample showed a trend of gradually decreasing with the increase of the impact pressure, indicating that the degree of rock sample damage gradually increased. This change process can be divided into two stages: in the first stage, the air pressure increased from 0.13MPa to 0.30MPa, and the average particle size decreased rapidly, from 31.73mm to 23.57mm, a decrease of 25.72%; in the second stage, the air pressure increased further, and the average particle size decreased more slowly, from 23.57mm to 13.18mm, a decrease of 44.08%. Based on the above test results, the measurement system can construct a second blasting coefficient of 8.3882 and a second compensation constant of 1.374. Finally, the measurement system can obtain the rock formation mapping function according to linear regression analysis as shown below:

[0090]

[0091] In the formula, is the mass percentage of rock blasting dust, and p is the impact gas pressure, in MPa. Furthermore, since the blasting dust amount is the total mass of the blasting area multiplied by the mass percentage, the measurement system can determine the calculation formula for the rock blasting dust amount according to the actual test data and the above-mentioned rock stratum mapping function according to the following formula:

[0092]

[0093] In the formula, m y is the dust emission from rock blasting, ρ y is the rock density, V is the blasting volume, the unit is m 3 , is the mass ratio of rock blasting dust. The calculation system is based on the above formula, and the calculation formula for the amount of rock blasting dust can be shown as follows:

[0094]

[0095] In the formula, m y is the dust emission from rock blasting; Q is the charge in a single hole, in kg; ρ y is the rock density. The unit of the rock density is kg / m 3 ; V is the blasting volume, in m 3 ; R is the average value of hole spacing and row spacing, in m; α and k are both empirical coefficients, where the value of α can be 1.31, and the value of k can be 0.67; η is the attenuation index, and the value of the attenuation coefficient can be 0.49. At this time, the measurement system can calculate the amount of dust generated by blasting of the rock formation based on the above formula.

[0096] For ease of understanding, Figure 2 FIG. 1 is a schematic diagram of an optional change law of the average particle size of coal sample and rock sample fragments with the impact gas pressure according to an embodiment of the present invention, such as Figure 2 As shown in the figure, the ordinate represents the average particle size of coal and rock fragments, and the abscissa represents the impact gas pressure. The average particle size of coal and rock fragments decreases with the increase of impact gas pressure, and the speed at which the average particle size of coal fragments decreases with the increase of impact gas pressure is significantly higher than the speed at which the average particle size of rock fragments decreases with the increase of impact gas pressure.

[0097] Figure 3 is a schematic diagram of an optional relationship between the mass ratio of coal seam blasting dust and the impact gas pressure according to an embodiment of the present invention, such as Figure 3 As shown in the figure, the ordinate represents the mass percentage of coal seam blasting dust, and the abscissa represents the impact gas pressure, R 2 It represents the coefficient of determination, which is used to measure the degree to which the independent variable explains the change of the dependent variable in the regression model. 2 The value of is between 0 and 1. The closer the value is to 1, the better the model fit is, that is, the independent variable can well explain the variation of the dependent variable. 2 =0.8641, the mass proportion of blasting dust has a good correlation with the impact air pressure, which is positively correlated.

[0098] Figure 4 is a schematic diagram of an optional relationship between the mass ratio of rock blasting dust and the impact gas pressure according to an embodiment of the present invention, such as Figure 4 As shown, the ordinate represents the mass percentage of rock blasting dust, and the abscissa represents the impact pressure, R 2 Represents the coefficient of determination. Rock layer R 2 =0.9308, the correlation between the mass proportion of blasting dust and the impact pressure is better than that of coal seams, and is also positively correlated. Figure 3 and Figure 4 It can be seen that due to the coal rock layer R 2The values ​​are all close to 1, indicating that the above linear regression model has a very high degree of fit in describing the relationship between the impact air pressure and the mass percentage of blasting dust. That is, the mathematical model established by linear regression can well reflect the relationship between the impact air pressure and the mass percentage of blasting dust in actual blasting engineering.

[0099] According to an embodiment of the present invention, an embodiment of a device for calculating dust emission intensity of coal mine blasting is provided. It should be noted that the device can be used to execute the above-mentioned method for calculating dust emission intensity of coal mine blasting. The specific implementation method and application scenario are the same as those of the above-mentioned embodiment, and will not be repeated here. Figure 5 is a schematic diagram of a device for calculating dust emission intensity of coal mine blasting according to an embodiment of the present invention, such as Figure 5 As shown, the device comprises:

[0100] The parameter acquisition module 502 is used to acquire the total mass of the coal-rock layer currently being blasted and the blasting engineering parameters, wherein the blasting engineering parameters are used to characterize the parameters used when blasting the coal-rock layer.

[0101] The dust generation amount determination module 504 is used to determine the target dust generation amount generated when the coal rock layer is blasted based on the blasting engineering parameters and the total mass, wherein the target dust generation amount is used to characterize the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters.

[0102] The intensity determination module 506 is used to determine the dust emission intensity of the coal rock layer when blasting based on the target dust emission amount.

[0103] Furthermore, the dust generation amount determination module is also used to: determine the impact load matching the blasting engineering parameters according to a first mapping function, wherein the impact load is used to characterize the pressure intensity exerted on the coal rock layer when the coal rock layer is blasted according to the blasting engineering parameters, and the first mapping function is used to characterize the mapping function between the impact load and the blasting engineering parameters; the device also includes: a first determination module, used to determine the mass percentage matching the impact load according to a second mapping function, wherein the mass percentage is used to characterize the ratio of the total mass of dust generated by the coal rock layer during blasting to the total mass of the coal rock layer, and the second mapping function is used to characterize the mapping function between the impact load and the mass percentage; the device also includes: a second determination module, used to determine the target dust generation amount based on the total mass and the mass percentage.

[0104] Furthermore, the first determination module is also used to: obtain a preset blasting coefficient and a preset compensation constant matching the coal stratum; obtain an initial percentage based on the product of the preset blasting coefficient and the impact load; and obtain a mass percentage based on the sum of the initial percentage and the preset compensation coefficient.

[0105] Furthermore, the coal rock stratum includes a coal seam and a rock stratum, the preset blasting coefficient matching the coal seam is a first blasting coefficient, the preset blasting coefficient matching the rock stratum is a second blasting coefficient, the first blasting coefficient is smaller than the second blasting coefficient, the preset compensation constant corresponding to the coal seam is a first compensation constant, the preset compensation constant corresponding to the rock stratum is a second compensation constant, and the first compensation constant is smaller than the second compensation constant.

[0106] Furthermore, the blasting engineering parameters include: explosive unit consumption, and the dust generation determination module is also used to: obtain the average hole spacing and attenuation coefficient of the blasting device; adjust the explosive unit consumption according to the first power value to obtain the first unit consumption; obtain the second unit consumption based on the quotient of the first unit consumption and the average hole spacing; adjust the second unit consumption according to the second power value to obtain the third unit consumption; obtain the impact load based on the product of the third unit consumption and the attenuation coefficient.

[0107] Furthermore, the device also includes: a first acquisition module, used to obtain the blasting gas pressure range corresponding to the coal rock layer, wherein the blasting gas pressure range is used to characterize the range of gas pressure intensity that can cause damage to the coal rock layer; the device also includes: a third determination module, used to construct multiple initial impact loads based on the blasting gas pressure range; blasting multiple groups of coal rock samples based on different initial impact loads to obtain multiple initial percentages, wherein different initial percentages are used to characterize the ratio of the total mass of dust generated when different coal rock samples are blasted using the initial impact load to the total mass of different coal rock samples; constructing a second mapping function based on multiple initial impact loads and multiple initial percentages corresponding to different impact loads.

[0108] Further, the coal rock sample includes: a coal sample, multiple initial percentages include: multiple first percentages corresponding to the coal sample, and the second mapping function includes: a coal seam mapping function corresponding to the coal sample; the third determination module is also used to: construct a first blasting coefficient and a first compensation constant based on multiple initial impact loads and the first percentages corresponding to different impact loads; construct a coal seam mapping function based on the first blasting coefficient and the first compensation constant.

[0109] Furthermore, the coal rock sample also includes: a rock sample, the multiple initial percentages include: multiple second percentages corresponding to the rock sample, and the second mapping function also includes: a rock formation mapping function corresponding to the rock sample; the third determination module is also used to: construct a second blasting coefficient and a second compensation constant based on multiple initial impact loads and the second percentages corresponding to different impact loads; construct a rock formation mapping function based on the second blasting coefficient and the second compensation constant.

[0110] An embodiment of the present application further provides an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of the present invention when running.

[0111] An embodiment of the present application further provides a computer-readable storage medium, which includes a stored executable program, wherein when the executable program is running, the device where the computer-readable storage medium is located is controlled to execute the methods in various embodiments of the present invention.

[0112] An embodiment of the present application further provides a computer program product, including a computer program, which implements the methods in various embodiments of the present invention when executed by a processor.

[0113] An embodiment of the present application further provides a computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium is used to store a computer program, and when the computer program is executed by a processor, the method in each embodiment of the present invention is implemented.

[0114] The embodiments of the present application further provide a computer program, which implements the methods in the above-mentioned embodiments of the present invention when executed by a processor.

[0115] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0116] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0117] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0118] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0119] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0120] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for determining dust emission intensity of coal mine blasting, characterized in that: include: Acquire the total mass of the coal-rock layer to be blasted and blasting engineering parameters, wherein the blasting engineering parameters are used to characterize the parameters used when blasting the coal-rock layer; Based on the blasting engineering parameters and the total mass, determining a target dust amount generated when the coal-rock layer is blasted, wherein the target dust amount is used to characterize the total mass of dust generated when the coal-rock layer is blasted according to the blasting engineering parameters; Based on the target dust emission amount, the dust emission intensity of the coal rock layer during blasting is determined.

2. The method according to claim 1, characterized in that Determining a target dust amount generated by blasting the coal-rock layer based on the blasting engineering parameters and the total mass includes: Determine an impact load that matches the blasting engineering parameter according to a first mapping function, wherein the impact load is used to characterize the pressure intensity to which the coal rock layer is subjected when the coal rock layer is blasted according to the blasting engineering parameter, and the first mapping function is used to characterize a mapping function between the impact load and the blasting engineering parameter; Determine a mass percentage matching the impact load according to a second mapping function, wherein the mass percentage is used to characterize the ratio of the total mass of dust generated when the coal rock layer is blasted to the total mass of the coal rock layer, and the second mapping function is used to characterize a mapping function between the impact load and the mass percentage; The target dust generation amount is determined based on the total mass and the mass percentage.

3. The method according to claim 2, characterized in that Determining a mass percentage matching the impact load according to the second mapping function includes: Obtaining a preset blasting coefficient and a preset compensation constant matching the coal rock layer; Obtaining an initial percentage based on the product of the preset explosion coefficient and the impact load; The mass percentage is obtained based on the sum of the initial percentage and the preset compensation coefficient.

4. The method according to claim 3, characterized in that The coal-rock layer includes a coal layer and a rock layer, the preset blasting coefficient matching the coal layer is a first blasting coefficient, the preset blasting coefficient matching the rock layer is a second blasting coefficient, the first blasting coefficient is smaller than the second blasting coefficient, the preset compensation constant corresponding to the coal layer is a first compensation constant, the preset compensation constant corresponding to the rock layer is a second compensation constant, and the first compensation constant is smaller than the second compensation constant.

5. The method according to claim 2, characterized in that: The blasting engineering parameters include: explosive consumption, Determining an impact load matching the blasting engineering parameters according to the first mapping function includes: Obtain the average hole spacing and attenuation coefficient of the blasting device; Adjusting the explosive unit consumption according to the first power value to obtain a first unit consumption; Obtaining a second unit consumption based on a quotient of the first unit consumption and the average hole spacing; Adjust the second unit consumption according to the second power value to obtain a third unit consumption; The impact load is obtained based on the product of the third unit consumption and the attenuation coefficient.

6. The method according to claim 2, characterized in that The method further comprises: Obtaining a blasting gas pressure range corresponding to the coal rock layer, wherein the blasting gas pressure range is used to characterize a range of gas pressure intensity that can cause damage to the coal rock layer; Based on the blasting gas pressure range, constructing a plurality of initial impact loads; Blasting multiple groups of coal and rock samples based on different initial impact loads to obtain multiple initial percentages, wherein the different initial percentages are used to characterize the ratio of the total mass of dust generated when blasting different coal and rock samples using the initial impact loads to the total mass of the different coal and rock samples; The second mapping function is constructed based on the multiple initial impact loads and the multiple initial percentages corresponding to different impact loads.

7. The method according to claim 6, characterized in that The coal rock sample includes: a coal sample, the multiple initial percentages include: multiple first percentages corresponding to the coal sample, and the second mapping function includes: a coal seam mapping function corresponding to the coal sample; based on the multiple initial impact loads and the multiple initial percentages corresponding to different impact loads, constructing the second mapping function includes: constructing a first explosion coefficient and a first compensation constant based on the multiple initial impact loads and first percentages corresponding to different impact loads; The coal seam mapping function is constructed based on the first blasting coefficient and the first compensation constant.

8. The method according to claim 7, characterized in that The coal rock sample further includes: a rock sample, the multiple initial percentages include: multiple second percentages corresponding to the rock sample, and the second mapping function further includes: a rock formation mapping function corresponding to the rock sample; based on the multiple initial impact loads and the multiple initial percentages corresponding to different impact loads, constructing the first mapping function includes: constructing a second explosion coefficient and a second compensation constant based on the plurality of initial impact loads and second percentages corresponding to different impact loads; The formation mapping function is constructed based on the second blasting coefficient and the second compensation constant.

9. A device for calculating dust emission intensity of coal mine blasting, characterized in that: include: A parameter acquisition module, used to acquire the total mass of the coal-rock layer currently being blasted and blasting engineering parameters, wherein the blasting engineering parameters are used to characterize the parameters used when blasting the coal-rock layer; a dust generation amount determination module, used to determine the target dust generation amount generated when the coal rock layer is blasted based on the blasting engineering parameters and the total mass, wherein the target dust generation amount is used to characterize the total mass of dust generated when the coal rock layer is blasted according to the blasting engineering parameters; The intensity determination module is used to determine the dust emission intensity of the coal rock layer when blasting based on the target dust emission amount.

10. An electronic device, characterized in that: include: A memory storing an executable program; A processor, configured to run the program, wherein the program executes the method according to any one of claims 1 to 7 when running.

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