Quantitative evaluation method and device for pulverized coal generation, medium and computing equipment

Abstract

The invention discloses a quantitative evaluation method and device for pulverized coal generation, a medium and computing equipment. The method comprises the following steps: determining the original morphology of a rock core; adopting slick water and jelly with different viscosities to obtain a first core after-pressing pulverized coal output; different fluid injection speeds are adopted, and the pulverized coal output after second rock core pressing is obtained; the morphology of the pressed rock core is obtained, and the real bending roughness of the artificial fracture is simulated; obtaining a critical speed Vmax; and obtaining the upper limit Qmax of the construction displacement. According to the method, by adopting slick water and jelly with different viscosities and adopting different fluid injection speeds, the pulverized coal output after first rock core pressing and the pulverized coal output after second rock core pressing are obtained respectively, and key parameters such as the construction displacement upper limit when the pulverized coal output has inflection points under the conditions of different sand concentrations and viscosities are obtained; a basis is provided for formulation of a discharge and mining system, and pulverized coal output is prevented and controlled; and the real stratum environment is simulated by obtaining the morphology of the pressed rock core, so that the evaluation result is more accurate.

Description

Technical Field

[0001] This invention relates to the field of oil and gas field development technology, and in particular to a method, apparatus, medium and computing equipment for quantitative evaluation of pulverized coal production. Background Technology

[0002] Understanding the mechanism of coal dust generation during fracturing in deep coal and rock formations is crucial for the development of coal gas reservoirs. Deep coal and rock formations are characterized by low permeability, high plasticity, and uneven development of natural fractures, making production increases difficult and requiring large-scale, high-volume fracturing to achieve production capacity. However, some coal gas wells have experienced reduced production after maintenance and shutdown, with coal dust observed at the wellhead. Analysis suggests this may be due to coal dust accumulation and blockage within artificial fractures, affecting production.

[0003] Deep coal seams are primarily composed of primary structural coal with extremely low inherent coal dust content. Compared to shallow coal seams, they exhibit higher mechanical strength and better compressive integrity, resulting in lower coal dust production during fracturing and drainage. However, the significantly increased mechanical damage caused by ultra-high drainage volumes (20 cubic meters per minute) and scale (with sand strength exceeding 2.0) makes the coal dust generation pattern unclear, hindering design optimization and production system development. Quantitatively evaluating coal dust production from artificial fractures and calculating upper limits for drainage volumes can provide a basis for coal dust prevention and control, incorporating particle size distribution to inform drainage system development.

[0004] Currently, domestic technologies and methods related to pulverized coal production in coalbed methane mining can be broadly categorized into three types. The first is pulverized coal production testing equipment during vertical well drilling in coalbed methane; the second is equipment and methods for monitoring pulverized coal production and bottom-hole flowing pressure in coalbed methane wells; and the third is equipment and methods for simulating pulverized coal production in vertical wellbores. All three methods focus on monitoring and preventing pulverized coal production in coalbed methane wells, lacking quantitative analysis of actual drilled core samples in laboratory simulations to suppress pulverized coal production at the source of well modification.

[0005] In the prior art, a method for monitoring the coal powder content in the produced fluid of a coalbed methane well, disclosed in CN107676088A, can accurately and efficiently determine the coal powder content by measuring the turbidity value of the produced fluid. This method can quickly obtain the mass concentration of coal powder in the produced fluid of the coalbed methane well to be monitored at different time periods. Moreover, this method is simple, time-saving, and easy to promote and use.

[0006] However, the above methods still fail to address the significant increase in mechanical damage caused by ultra-large displacement and scale, resulting in unclear coal dust generation patterns. Consequently, they cannot guide design optimization and production system formulation, and therefore cannot prevent or control coal dust production. Summary of the Invention

[0007] The main objective of this invention is to provide a method, apparatus, medium, and computing device for quantitative evaluation of pulverized coal production, in order to solve the technical problem of unclear pulverized coal production patterns under the significantly increased mechanical damage caused by ultra-large discharge and scale in the prior art.

[0008] To achieve the above objectives, this invention provides a method for quantitatively evaluating coal powder production. The method includes: S10, determining the original morphology of the core sample; S20, using slickwater and gel of different viscosities to obtain the coal powder production after compression of the first core sample; S30, using different fluid injection rates to obtain the coal powder production after compression of the second core sample; S40, obtaining the morphology of the compressed core sample and simulating the actual bending roughness of artificial cracks; S50, obtaining the critical velocity V. max S60, obtain the upper limit of construction displacement Q max S70, obtain the critical flow velocity.

[0009] Optionally, in step S10, step S10 includes the following steps: S110, selecting coal core samples; S120, performing morphological scanning using a laser particle size analyzer; S130, determining the original morphology of the core samples.

[0010] Optionally, step S20 includes the following step: S210, controlling the fluid flow rate in the core to remain constant; S220 uses slickwater and gel of different viscosities, with a large core holder as the core carrier, and pressurizes through a pressure servo system to realistically simulate the pressure of deep coal and rock; S230 uses an oven to simulate formation temperature and injects simulated fracturing fluid at a constant rate; S240 uses a coal powder collection device to collect the coal powder produced after fracturing. S250, obtain the coal powder output after the first core compression.

[0011] Optionally, step S30 includes the following steps: S310, controlling the viscosity of the fluid inside the core; S320, using different fluid injection rates, with the large-size core holder as the core carrier, pressurizing through the pressure servo system to realistically simulate the deep coal and rock pressure; S330, simulating formation temperature through the oven, and injecting the simulated fracturing fluid at a constant rate; S340, collecting the coal powder produced after fracturing through the coal powder collection device; S350, obtaining the amount of coal powder produced after fracturing in the second core.

[0012] Optionally, step S40 includes the following steps: S410, performing a morphological scan on the core after the indoor test to obtain the morphology of the compressed core; S420, based on the morphological scan results, wire-cutting a full-size real core coal sample to simulate the real bending roughness of artificial cracks.

[0013] Optionally, step S50 includes the following steps: S510, establishing a calculation model for the dynamic generation of pulverized coal scoured by artificial cracks based on the indoor evaluation fitting relationship formula; S520, obtaining the inflection point of the pulverized coal quantity growth rate within the artificial cracks; S530, obtaining the critical velocity V based on the following formula. max : (1).

[0014] Optionally, step S60 includes the following steps: S610, evaluating the fitting relationship formula indoors, establishing a calculation formula for coal dust generation in artificial cracks; obtaining the upper limit of construction discharge Q when the coal dust output reaches an inflection point under different sand concentrations and viscosities based on the following formula. max : (2).

[0015] In addition, to achieve the above objectives, this application embodiment also provides a quantitative evaluation device for coal powder production. The device includes: a morphology determination module for determining the original morphology of the core; a first acquisition module for acquiring the coal powder output of the first core after compression using slickwater and gel with different viscosities; and a second acquisition module for acquiring the coal powder output of the second core after compression using different fluid injection rates. The simulation module is used to acquire the morphology of the compressed core and simulate the actual bending roughness of the artificial fracture; the third acquisition module is used to acquire the critical velocity V. max The fourth acquisition module is used to obtain the upper limit of the construction displacement Q. max .

[0016] In addition, to achieve the above objectives, embodiments of this application also provide a computer-readable storage medium including instructions that, when executed on a computer, cause the computer to perform the coal powder generation quantitative evaluation method described in any embodiment of this application.

[0017] Furthermore, to achieve the above objectives, embodiments of this application also provide a computing device, which includes at least one processor, a memory, and an input / output unit; wherein the memory is used to store a computer program, and the processor is used to call the computer program stored in the memory to execute the coal powder generation quantitative evaluation method described in any embodiment of this application.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The quantitative evaluation method for coal powder production provided in this application obtains the coal powder production after compression of the first core and the second core by using slickwater and gel with different viscosities and different fluid injection rates. It derives key parameters such as the upper limit of construction discharge when the coal powder production reaches an inflection point under different sand concentrations and viscosities, providing a basis for the formulation of drainage systems and preventing and controlling coal powder production. By obtaining the morphology of the compressed core, the method simulates the actual bending and roughness of artificial fractures, thereby simulating the real formation environment and making the evaluation results closer to reality. Attached Figure Description

[0019] Figure 1A flowchart of a method for quantitatively evaluating pulverized coal generation provided in this application embodiment; Figure 2 This is a structural block diagram of the coal powder generation quantitative evaluation device provided in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the medium provided in the embodiments of this application; Figure 4 A schematic diagram of the structure of a computing device provided in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: In the figure, 300 is the quantitative evaluation device for pulverized coal generation; 310 is the first acquisition module; 320 is the first acquisition module; 330 is the second acquisition module; 340 is the simulation module; 350 is the third acquisition module; and 360 is the fourth acquisition module.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the application. Rather, these embodiments are provided to make the disclosure more thorough and complete, and to fully convey the scope of the disclosure to those skilled in the art.

[0023] To address the aforementioned technical problems, embodiments of this application provide a method for quantitatively evaluating pulverized coal production, such as... Figure 1 As shown, the method may include the following steps: S10, determines the original morphology of the core.

[0024] In an exemplary embodiment, step S10 specifically includes the following steps: S110, coal and rock core samples were selected; S120 was morphologically scanned using a laser particle size analyzer. S130, determining the original morphology of the core.

[0025] Furthermore, a section of coal core, 8cm in diameter and 10cm in length, was selected from a vertical shaft and its morphology was scanned using a laser particle size analyzer to determine the original morphology of the core.

[0026] S20 uses slickwater and gel with different viscosities to obtain the coal powder output after the first core is pressed.

[0027] In an exemplary embodiment, step S20 may include the following steps: S210, controls the fluid velocity inside the core to remain constant, for example, the fluid velocity inside the core can be controlled to 0.6 m / s; S220 uses slippery water and gel of different viscosities, with a large-size core holder as the core carrier, and is pressurized by a pressure servo system to realistically simulate the pressure of deep coal and rock. S230 uses an oven to simulate formation temperature and injects simulated fracturing fluid at a constant rate. S240 collects the coal powder produced after pressing through a coal powder collection device; S250, obtain the coal powder output after the first core compression.

[0028] S30 uses different fluid injection rates to obtain the amount of pulverized coal produced after the second core compression.

[0029] In an exemplary embodiment, step S30 may specifically include the following steps: S310 controls the viscosity of fluids within the core. S320 uses different fluid injection rates, with the large-size core holder as the core carrier, and pressurizes through the pressure servo system to realistically simulate the pressure of deep coal and rock; S330, the simulated fracturing fluid is injected at a constant rate through the oven to simulate formation temperature; S340, the coal powder produced after pressing is collected by the coal powder collection device; S350, obtain the coal powder output after the second core compression.

[0030] S40 is used to obtain the morphology of the compressed core and simulate the actual bending roughness of the artificial crack.

[0031] In an exemplary embodiment, step S40 may specifically include the following steps: S410, the morphology of the core after the indoor test was scanned again to obtain the morphology of the compressed core; S420, based on the morphological scanning results, wire cuts full-size real core coal samples to simulate the real bending roughness of artificial cracks, making the scouring environment more realistic.

[0032] S50, obtain the critical velocity V max .

[0033] In an exemplary embodiment, step S50 may specifically include the following steps: S510, based on the indoor evaluation fitting relationship formula, establish a calculation model for the dynamic generation of coal powder erosion by artificial cracks; S520, to obtain the inflection point of the coal powder growth rate within the artificial fracture; S530, the critical velocity V is obtained based on the following formula. max : (1) S60, obtain the construction displacement limit Qmax .

[0034] Specifically, before step S530, the following steps may also be included: 1) Using the corresponding fitting formula for coal and rock in the block, the amount of coal dust generated in the reservoir scour environment (m) is quantitatively fitted based on the following formula. s : (3) 2) Establish a calculation model for the dynamic generation of pulverized coal erosion caused by artificial fractures, and obtain the dynamic generation m of pulverized coal erosion caused by artificial fractures based on the following formula. L : (4) 3) Obtain the inflection point of the coal powder growth rate within the artificial crack.

[0035] 4) Obtain the critical velocity V according to Formula 1. max .

[0036] In an exemplary embodiment, step S60 may specifically include the following steps: S610, Indoor evaluation fitting relationship formula, establish calculation formula for artificial crack coal dust generation; S620, based on the following formula, obtain the upper limit of the construction discharge rate Q when the coal powder output reaches an inflection point under different sand concentrations and viscosities. max : (2).

[0037] S70, obtain the critical flow velocity.

[0038] In this exemplary embodiment, by using slickwater and gel with different viscosities and by using different fluid injection rates, the coal powder production after the first core compaction and the coal powder production after the second core compaction are obtained respectively. Key parameters such as the upper limit of construction discharge when the coal powder production reaches an inflection point under different sand concentrations and viscosities are obtained, providing a basis for the formulation of the discharge system and preventing and controlling coal powder production. By obtaining the morphology of the compacted core, the actual bending and roughness of artificial fractures are simulated, thereby simulating the real formation environment and making the evaluation results closer to reality.

[0039] Based on the above embodiments, refer to Figure 2Another embodiment of this application also provides a quantitative evaluation device for pulverized coal production. This pulverized coal production quantitative evaluation device 300 may include the following modules: a morphology determination module for determining the original morphology of the core; a first acquisition module for acquiring the post-compression pulverized coal production of the first core using slickwater and gel of different viscosities; a second acquisition module for acquiring the post-compression pulverized coal production of the second core using different fluid injection rates; a simulation module for acquiring the morphology of the post-compression core and simulating the actual bending roughness of artificial cracks; and a third acquisition module for acquiring the critical velocity V. max The fourth acquisition module is used to obtain the upper limit of the construction displacement Q. max .

[0040] Based on the above embodiments, this application also provides a computer-readable storage medium, see reference. Figure 3 The computer-readable storage medium shown is an optical disc 50, on which a computer program (i.e., a program product) is stored. When the computer program is run by a processor, it performs the steps described in the above-described method implementation, such as: determining the original morphology of the core; using slickwater and gel of different viscosities to obtain the amount of coal powder produced after compression of the first core; using different fluid injection rates to obtain the amount of coal powder produced after compression of the second core; obtaining the morphology of the compressed core and simulating the actual bending roughness of artificial cracks; obtaining the critical velocity V. max ; Obtain the upper limit of construction displacement Q max The specific implementation methods for each step will not be repeated here.

[0041] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical and magnetic storage media, which will not be elaborated here.

[0042] In addition to the above embodiments, this application also provides a computing device. Figure 4 A block diagram is shown of an exemplary computing device 60 suitable for implementing embodiments of the present application. The computing device 60 may be a computer system or a server. Figure 4 The computing device 60 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0043] like Figure 4As shown, the components of computing device 60 may include, but are not limited to: one or more processors or processing units 601, system memory 602, and bus 603 connecting different system components (including system memory 602 and processing unit 601).

[0044] The computing device 60 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computing device 60, including volatile and non-volatile media, removable and non-removable media.

[0045] System memory 602 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 6021 and / or cache memory 6022. Computing device 60 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, ROM 6023 may be used to read and write non-removable, non-volatile magnetic media (…). Figure 4 (Not shown in the image, usually referred to as "hard drive"). Although not shown in... Figure 4 The diagram illustrates that a disk drive for reading and writing to removable non-volatile disks (e.g., "floppy disks") and an optical disk drive for reading and writing to removable non-volatile optical disks (e.g., CD-ROMs, DVD-ROMs, or other optical media) can be provided. In these cases, each drive can be connected to a bus 603 connecting different system components via one or more data media interfaces. The system memory 602 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this application.

[0046] A program / utility 6025 having a set (at least one) of program modules 6024 may be stored, for example, in system memory 602, and such program modules 6024 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment. Program modules 6024 typically perform the functions and / or methods described in the embodiments of this application.

[0047] The computing device 60 can also communicate with one or more external devices 604 (such as a keyboard, pointing device, display, etc.). This communication can be performed via input / output (I / O) interface 605. Furthermore, the computing device 60 can also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) via network adapter 606. Figure 4As shown, network adapter 606 communicates with other modules of computing device 60 (such as processing unit 601, etc.) via bus 603, which connects different system components. It should be understood that, although... Figure 4 Other hardware and / or software modules may be used in conjunction with computing device 60, as not shown in the diagram.

[0048] The processing unit 601 executes various functional applications and data processing by running programs stored in the system memory 602. For example, it determines the original morphology of the core; uses slickwater and gel of different viscosities to obtain the post-compression coal powder yield of the first core; uses different fluid injection rates to obtain the post-compression coal powder yield of the second core; obtains the morphology of the post-compression core and simulates the actual bending roughness of artificial fractures; and obtains the critical velocity V. max ; Obtain the upper limit of construction displacement Q max The specific implementation methods of each step will not be repeated here. It should be noted that although several units / modules or sub-units / sub-modules of the pulverized coal generation quantitative evaluation device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0049] In the description of this application, it should be noted that the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0051] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the coupling or direct coupling or communication connection shown or discussed may be through some communication interface; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0052] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0053] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0054] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a processor-executable, non-volatile, computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0055] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions 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 this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

[0056] Furthermore, although the operations of the method of this application are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

Claims

1. A method for quantitatively evaluating pulverized coal production, characterized in that, The quantitative evaluation method for pulverized coal production includes the following steps: S10, determines the original morphology of the core; S20 uses slickwater and gel with different viscosities to obtain the coal powder output after the first core compression. S30, using different fluid injection rates, obtain the amount of pulverized coal produced after the second core compression; S40, to obtain the morphology of the compressed core and simulate the actual bending roughness of the artificial crack; S50, Obtain the critical velocity V max ; S60, Get the upper limit of construction displacement Q max ; S70, obtain the critical flow velocity.

2. The method for quantitative evaluation of pulverized coal production according to claim 1, characterized in that, In step S10, step S10 includes the following steps: S110, coal and rock core samples were selected; S120 was morphologically scanned using a laser particle size analyzer. S130, determining the original morphology of the core.

3. The method for quantitative evaluation of pulverized coal production according to claim 1, characterized in that, Step S20 includes the following steps: S210, to keep the fluid velocity in the core constant; S220 uses slippery water and gel of different viscosities, with a large-size core holder as the core carrier, and is pressurized by a pressure servo system to realistically simulate the pressure of deep coal and rock. S230 uses an oven to simulate formation temperature and injects simulated fracturing fluid at a constant rate. S240 collects the coal powder produced after pressing through a coal powder collection device; S250, obtain the coal powder output after the first core compression.

4. The method for quantitative evaluation of pulverized coal production according to claim 2, characterized in that, Step S30 includes the following steps: S310 controls the viscosity of fluids within the core. S320 uses different fluid injection rates, with the large-size core holder as the core carrier, and pressurizes through the pressure servo system to realistically simulate the pressure of deep coal and rock; S330, the simulated fracturing fluid is injected at a constant rate through the oven to simulate formation temperature; S340, the coal powder produced after pressing is collected by the coal powder collection device; S350, obtain the coal powder output after the second core compression.

5. The method for quantitative evaluation of pulverized coal production according to claim 1, characterized in that, Step S40 includes the following steps: S410, the morphology of the core after the indoor test was scanned again to obtain the morphology of the compressed core; S420, based on the morphological scanning results, wire cut a full-size real core coal sample to simulate the real bending roughness of artificial cracks.

6. The method for quantitative evaluation of pulverized coal production according to claim 1, characterized in that, Step S50 includes the following steps: S510, based on the indoor evaluation fitting relationship formula, establish a calculation model for the dynamic generation of coal powder erosion by artificial cracks; S520, to obtain the inflection point of the coal powder growth rate within the artificial fracture; S530, the critical velocity V is obtained based on the following formula. max : （1）。 7. The method for quantitative evaluation of pulverized coal production according to claim 1, characterized in that, Step S60 includes the following steps: S610, Indoor evaluation fitting relationship formula, establish calculation formula for artificial crack coal dust generation; S620, based on the following formula, obtain the upper limit of the construction discharge rate Q when the coal powder output reaches an inflection point under different sand concentrations and viscosities. max : （2）。 8. A quantitative evaluation device for pulverized coal production, characterized in that, include: The morphology determination module is used to determine the original morphology of the core. The first acquisition module is used to obtain the coal powder output after the first core is compressed by using slickwater and gel with different viscosities. The second acquisition module is used to acquire the amount of coal powder produced after the second core compression by using different fluid injection rates; The simulation module is used to obtain the morphology of the compressed core and simulate the actual bending roughness of the artificial cracks. The third acquisition module is used to acquire the critical velocity Vmax. The fourth module is used to obtain the upper limit of construction displacement Q. max .

9. A computer-readable storage medium, characterized in that, It includes instructions that, when run on a computer, cause the computer to perform the quantitative evaluation method for pulverized coal production as described in any one of claims 1 to 7.

10. A computing device, characterized in that, The computing device includes: At least one processor, memory, and input / output unit; The memory is used to store computer programs, and the processor is used to call the computer programs stored in the memory to execute the pulverized coal generation quantitative evaluation method according to any one of claims 1 to 7.

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