CN113279754A - Memory cutting method and system for coal mining machine - Google Patents
Memory cutting method and system for coal mining machine Download PDFInfo
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Abstract
The invention provides a memory cutting method and a memory cutting system for a coal mining machine, wherein in the manual coal cutting process, two paths of geographic position information and geological information are correspondingly connected with coal cutting parameters, a coal cutting parameter lookup table is created for flexibly selecting the coal cutting parameters in the subsequent automatic coal cutting process according to an actual advancing path and the actual geological parameters, and the automatic coal cutting process with high safety and high accuracy is realized; and in the automatic coal cutting process, the execution of the coal cutting result and the coal cutting parameters are monitored in real time, and if the execution is abnormal, the execution is reported immediately, even the operation is stopped, so that the safety of the coal cutting process is guaranteed.
Description
Technical Field
The invention relates to the technical field of coal mine fully mechanized mining, in particular to a memory cutting method and a memory cutting system for a coal mining machine.
Background
The high-efficiency intensive production of coal is the development direction of the coal industry, and the adoption of advanced mining technology and equipment is the core of the high-efficiency intensive production of mines. The new development situation of the coal industry puts higher updating requirements on coal mine equipment, the coal production is intensified, the coal mine equipment is required to be developed towards the direction of complete set and high reliability, and the safety production of the coal process has increased requirements on the automatic, intelligent and informationized coal mine equipment.
The realization of the automatic mining technology of few people and no people is a research hotspot of the mining world at present, the technologies of the United states and Australia are positioned at the front of the world, and the automation of 'three machines' and the real-time monitoring of underground environment safety information are realized in the 80 s of the 20 th century. In the early 90 s, canada began to study remote mining technologies, and finland also announced intelligent mining solutions. The high-yield and high-efficiency technology of the main coal producing countries in the world is rapidly developed, and the automation technology of the fully mechanized mining face is generated. The hydraulic support is used as important supporting equipment of the fully mechanized coal mining face, and the automation degree of the hydraulic support directly influences the high yield, high efficiency and the automation degree of the fully mechanized coal mining face.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide a memory cutting method and a memory cutting system for a coal mining machine, which have higher safety and more accurate parameter determination.
The invention discloses a memory cutting method of a coal mining machine, which comprises the following steps:
continuously acquiring geographical position information of a coal mining path by a coal mining machine at intervals of a first preset distance in a manually operated coal mining advancing process, storing externally input cutting parameters corresponding to each geographical position on the coal mining path, and acquiring a first cutting parameter extraction table corresponding to the geographical position information and the cutting parameters;
continuously collecting geological parameters of a body to be mined on a coal mining path at intervals of a second preset distance in a coal mining advancing process of a coal mining machine in a manual operation, and storing externally input cutting parameters corresponding to the position of each body to be mined on the coal mining path; judging which range of a plurality of preset geological information ranges the geological parameter is located in, connecting the stored cutting parameter with the preset geological information range to which the geological parameter of the corresponding position of the coal mining body to be mined belongs, and acquiring a second cutting parameter extraction table corresponding to the geological parameter and the cutting parameter;
selecting a first cutting parameter extraction table and/or a second cutting parameter extraction table according to the real-time cutting parameters of the coal mining machine, and performing coal mining cutting according to the real-time cutting parameters;
in the automatic coal mining advancing process of the coal mining machine, after a coal cutting period is finished, selecting again to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and performing coal mining cutting according to the real-time cutting parameters; the coal cutting period is a coal cutting process of the coal mining machine advancing for a first preset distance or a second preset distance.
Preferably, in the automatic coal mining advancing process of the coal mining machine, selecting to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and performing coal mining cutting according to the real-time cutting parameters further includes:
continuously detecting coal mining result information during the automatic coal mining advancing process of the coal mining machine, judging whether the coal mining result information is within a preset coal mining information threshold range, if not, uploading coal mining abnormity prompting information, and recording current geographical position information, geological parameters and actually adopted cutting parameters; the coal mining result information comprises actual coal mining amount.
Preferably, the coal mining result information further comprises various actual cutting information; the judging whether the coal mining result information is within a preset coal mining information threshold range or not, if not, uploading coal mining abnormity prompt information and recording current geographical position information, geological parameters and actually adopted cutting parameters further comprises: and judging whether each item of actual cutting information is within the cutting parameter range, if not, uploading coal mining abnormity prompt information, recording current geographical position information, geological parameters and actually adopted cutting parameters, and stopping cutting operation.
Preferably, the judging whether each item of actual cutting information is within the cutting parameter range includes:
if the current extraction is the first cutting parameter extraction table, judging whether each item of actual cutting information is respectively located in a first cutting parameter range corresponding to the current geographic position information; the first cutting parameter range is the range of the error value of plus or minus five percent of the cutting parameter corresponding to the geographic position information in the first cutting parameter extraction table; if the current extraction is the second cutting parameter extraction table, judging whether each item of actual cutting information is respectively located in a second cutting parameter range corresponding to the current geological parameter; the second cutting parameter range is a range of error values of plus or minus ten percent of the cutting parameters corresponding to the preset geological information range to which the geological parameters belong in the second cutting parameter extraction table.
Preferably, the plurality of preset geological information ranges include more than 5 preset geological information ranges.
Preferably, the preset geological information range is set according to the upper threshold and the lower threshold of each parameter of the geological parameters.
Preferably, each parameter of the geological parameters is integrated through an algorithm to obtain the preset geological information range.
The invention also discloses a memory cutting system of the coal mining machine, which comprises a positioning module, a geological exploration module and a processing module;
in the process that the coal mining machine is manually operated to mine coal, the processing module controls the positioning module to continuously acquire the geographical position information of a coal mining path at intervals of a first preset distance; the processing module stores externally input cutting parameters corresponding to each geographic position on the coal mining path, and processes and obtains a first cutting parameter extraction table corresponding to geographic position information and the cutting parameters;
in the process that the coal mining machine is manually operated to mine coal, the processing module controls the geological exploration module to continuously acquire geological parameters of a coal body to be mined on a coal mining path at intervals of a second preset distance; the processing module stores externally input cutting parameters corresponding to each position of the coal mining body to be mined on the coal mining path, judges which range of a plurality of preset geological information ranges the geological parameters are located in, and connects the stored cutting parameters with the preset geological information range to which the geological parameters of the corresponding position of the coal mining body to be mined belong so as to obtain a second cutting parameter extraction table corresponding to the geological parameters and the cutting parameters;
in the automatic coal mining advancing process of the coal mining machine, the processing module selects to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and controls the coal mining machine to perform coal mining cutting according to the real-time cutting parameters;
in the automatic coal mining advancing process of the coal mining machine, after a coal cutting period is finished, the processing module can select to extract real-time cutting parameters again according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and controls the coal mining machine to perform coal mining cutting according to the real-time cutting parameters; the coal cutting period is a coal cutting process of the coal mining machine advancing for a first preset distance or a second preset distance.
Preferably, the device also comprises a weight detection module, wherein the weight detection module is connected with the scraper conveyor; in the process of automatic coal mining advancing of the coal mining machine, the processing module controls the weight detection module to continuously detect the actual coal mining amount on the scraper conveyor and judges whether the coal mining result information is within a preset coal mining information threshold range, if not, the processing module uploads coal mining abnormity prompt information and records current geographical position information, geological parameters and cutting parameters actually adopted;
and the processing module judges whether the current extraction is the first cutting parameter extraction table or the second cutting parameter extraction table: when the current cutting parameter is the first cutting parameter extraction table, the processing module judges whether each item of actual cutting information is respectively located in a first cutting parameter range corresponding to the current geographic position information; the first cutting parameter range is the range of the error value of plus or minus five percent of the cutting parameter corresponding to the geographic position information in the first cutting parameter extraction table; if the current geological parameter is the second cutting parameter extraction table, the processing module judges whether each item of actual cutting information is respectively located in a second cutting parameter range corresponding to the current geological parameter; the second cutting parameter range is a range of error values of plus or minus ten percent of the cutting parameters corresponding to the preset geological information range to which the geological parameters belong in the second cutting parameter extraction table; if not, the processing module uploads coal mining abnormity prompt information, records current geographic position information, geological parameters and actually adopted cutting parameters, and controls the coal mining machine to stop cutting operation.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. in the manual coal cutting process, two paths of geographic position information and geological information are correspondingly connected with coal cutting parameters, a coal cutting parameter lookup table is created for the subsequent automatic coal cutting process to flexibly select coal cutting parameters according to an actual advancing path and actual geological parameters, and the automatic coal cutting process with high safety and high accuracy is realized;
2. in the automatic coal cutting process, the execution of the coal cutting result and the coal cutting parameters are monitored in real time, and if the execution is abnormal, the execution is reported immediately, even the operation is stopped, so that the safety of the coal cutting process is guaranteed.
Drawings
FIG. 1 is a flow chart of a memory cutting method of a coal mining machine provided by the invention;
fig. 2 is a flow chart of the coal mining machine memory cutting method provided by the invention for implementing and monitoring the coal cutting process.
Detailed Description
The advantages of the invention are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
Referring to the attached figure 1, the invention discloses a memory cutting method of a coal mining machine, which comprises the following steps of firstly storing various coal cutting parameters in the process in the manual coal cutting process, and then extracting the parameters to automatically cut coal in the next automatic coal cutting process:
s101, continuously collecting geographical position information of a coal mining path by taking a first preset distance as an interval in a coal mining advancing process of manual operation of a coal mining machine, storing externally input cutting parameters corresponding to each geographical position on the coal mining path, and acquiring a first cutting parameter extraction table corresponding to the geographical position information and the cutting parameters;
s102, continuously collecting geological parameters of a body to be mined on a coal mining path at intervals of a second preset distance in a coal mining advancing process of manual operation of a coal mining machine, and storing externally input cutting parameters corresponding to the position of each body to be mined on the coal mining path; judging which range of a plurality of preset geological information ranges the geological parameter is located in, connecting the stored cutting parameter with the preset geological information range to which the geological parameter of the corresponding position of the coal mining body to be mined belongs, and acquiring a second cutting parameter extraction table corresponding to the geological parameter and the cutting parameter;
and S2, selecting to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table during the automatic coal mining advancing process of the coal mining machine, and performing coal mining cutting according to the real-time cutting parameters.
In the automatic coal mining advancing process of the coal mining machine, after a coal cutting period is finished, real-time cutting parameters are extracted according to the first cutting parameter extraction table and/or the second cutting parameter extraction table again, coal mining cutting is carried out according to the real-time cutting parameters, and the coal cutting period is the coal cutting process of the coal mining machine advancing by a first preset distance or a second preset distance. That is, if the previous cycle is the first cutting parameter extraction table, the previous cycle is the coal cutting process of the first preset distance, and after the coal cutting process of the cycle is finished, the first cutting parameter extraction table may be selected to be continuously extracted, or the second cutting parameter extraction table may be used instead.
Coal cutting parameters include, but are not limited to, cutting height, speed, power (expressed as voltage, current), shearer drum inclination, and the like.
Geological information parameters include, but are not limited to, moisture, hardness, chemical elements, etc. of the coal seam.
Preferably, referring to fig. 2, in order to ensure the safety of the coal cutting process, monitoring the coal cutting process is performed, and if an abnormality occurs, the monitoring is reported in time, a warning message is sent, and even the cutting operation is stopped. The method comprises the steps that coal mining result information is continuously detected in the automatic coal mining advancing process of a coal mining machine, whether the coal mining result information is located in a preset coal mining information threshold range is judged, if not, coal mining abnormity prompting information is uploaded, and current geographic position information, geological parameters and cutting parameters actually adopted are recorded.
Preferably, the coal mining result information includes an actual coal mining amount, and whether the coal cutting process is normal is judged according to the coal amount obtained by actual coal cutting.
Preferably, the abnormity of the coal cutting process is judged according to the coal cutting result, and the judgment can be carried out according to the execution condition of the coal cutting parameters, namely whether each item of actual cutting information is within the cutting parameter range is judged, if not, the coal mining abnormity prompting information is uploaded, the current geographic position information, the geological parameters and the actually adopted cutting parameters are recorded, and the cutting operation is stopped. And the first cutting parameter extraction table or the second cutting parameter extraction table can be selected and extracted in the next coal cutting period.
Specifically, the method comprises the following steps:
if the current extraction is the first cutting parameter extraction table, whether each item of actual cutting information is respectively located in the first cutting parameter range corresponding to the current geographic position information is judged. The first cutting parameter range is the range of the error value of plus or minus five percent of the cutting parameter corresponding to the geographic position information in the first cutting parameter extraction table. For example, if the cutting height parameter corresponding to the current geographical location information is 3m, the first cutting height range is 3.15-2.85 m.
It should be noted that the error value of plus or minus five percent is not an error range limited by the implementation of the present invention, and in an actual process, other error value ranges may also be used.
If the current extraction is the second cutting parameter extraction table, whether each item of actual cutting information is respectively located in the second cutting parameter range corresponding to the current geological parameter is judged. The second cutting parameter range is a range of error values of plus or minus ten percent of the cutting parameter corresponding to the preset geological information range to which the geological parameter belongs in the second cutting parameter extraction table.
Similarly, the error values of plus or minus ten percent are not limited to the error range for implementing the present invention, and other error value ranges can be used in the practical process.
Preferably, in order to ensure that the second cutting parameter extraction table can adapt to complex coal mining geological topography, the larger the preset geological information range is, the better the preset geological information range is, and generally, at least more than 5 preset geological information ranges are included. The various choices make the finally determined parameters more consistent with the actual situation.
Preferably, the preset geological information range can be set according to the upper threshold and the lower threshold of each parameter of the geological parameters. The preset geological information range is set in sequence according to the upper threshold and the lower threshold of each parameter, and the multiple parameters are not affected each other.
In addition, each parameter of the geological parameters can be synthesized through an algorithm to obtain a preset geological information range. The parameters are combined and comprehensively analyzed through an algorithm to obtain a preset geological information range.
The invention also discloses a memory cutting system of the coal mining machine, which comprises the following components:
-a positioning module for positioning a specific geographical location of the shearer;
-a geological exploration module for detecting and analyzing geological parameters of the coal seam;
a processing module for processing and determining the data, controlling the operation of the shearer, etc.
In the process that the coal mining machine is manually operated to mine coal, the processing module controls the positioning module to continuously acquire the geographical position information of a coal mining path at intervals of a first preset distance; the processing module stores externally input cutting parameters corresponding to each geographic position on the coal mining path, and processes and obtains a first cutting parameter extraction table corresponding to the geographic position information and the cutting parameters.
In the coal mining advancing process of the coal mining machine in manual operation, the processing module controls the geological exploration module to continuously acquire geological parameters of a coal body to be mined on a coal mining path at intervals of a second preset distance; the processing module stores externally input cutting parameters corresponding to each position of the coal mining body to be mined on the coal mining path, judges which range of a plurality of preset geological information ranges the geological parameters are located in, and connects the stored cutting parameters with the preset geological information range to which the geological parameters of the corresponding position of the coal mining body to be mined belong so as to obtain a second cutting parameter extraction table corresponding to the geological parameters and the cutting parameters.
And in the automatic coal mining advancing process of the coal mining machine, the processing module selects to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and controls the coal mining machine to perform coal mining cutting according to the real-time cutting parameters.
In addition, in the automatic coal mining advancing process of the coal mining machine, after a coal cutting period is finished, the processing module can select to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table again, and controls the coal mining machine to perform coal mining cutting according to the real-time cutting parameters; one coal cutting cycle is a coal cutting process in which the coal mining machine advances by a first preset distance or a second preset distance.
Preferably, the coal cutting device further comprises a weight detection module, wherein the weight detection module is connected with the scraper conveyor and used for acquiring the actual coal cutting amount. In the process of automatic coal mining advancing of the coal mining machine, the processing module controls the weight detection module to continuously detect the actual coal mining amount on the scraper conveyor and judges whether coal mining result information is within a preset coal mining information threshold range, if not, the processing module uploads coal mining abnormity prompt information and records current geographical position information, geological parameters and cutting parameters actually adopted.
And the processing module judges whether the current extraction is a first cutting parameter extraction table or a second cutting parameter extraction table: when the cutting parameter is the first cutting parameter extraction table, the processing module judges whether each item of actual cutting information is respectively located in a first cutting parameter range corresponding to the current geographic position information, wherein the first cutting parameter range is a range of an error value of plus or minus five percent of the cutting parameter corresponding to the geographic position information in the first cutting parameter extraction table; and when the cutting parameter is the second cutting parameter extraction table, the processing module judges whether each item of actual cutting information is respectively located in a second cutting parameter range corresponding to the current geological parameter, wherein the second cutting parameter range is a range of error values of plus or minus ten percent of the cutting parameter corresponding to the preset geological information range to which the geological parameter belongs in the second cutting parameter extraction table.
If one parameter in each item of actual cutting information is not located in a first cutting parameter range corresponding to the current geographic position information or one parameter in each item of actual cutting information is not located in a second cutting parameter range corresponding to the current geographic parameter, the processing module uploads coal mining abnormity prompting information and records the current geographic position information, the geographic parameters and actually adopted cutting parameters, and controls the coal mining machine to stop cutting operation so as to ensure the safety of the coal mining process.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.
Claims (9)
1. A memory cutting method of a coal mining machine is characterized by comprising the following steps:
continuously acquiring geographical position information of a coal mining path by a coal mining machine at intervals of a first preset distance in a manually operated coal mining advancing process, storing externally input cutting parameters corresponding to each geographical position on the coal mining path, and acquiring a first cutting parameter extraction table corresponding to the geographical position information and the cutting parameters;
continuously collecting geological parameters of a body to be mined on a coal mining path at intervals of a second preset distance in a coal mining advancing process of a coal mining machine in a manual operation, and storing externally input cutting parameters corresponding to the position of each body to be mined on the coal mining path; judging which range of a plurality of preset geological information ranges the geological parameter is located in, connecting the stored cutting parameter with the preset geological information range to which the geological parameter of the corresponding position of the coal mining body to be mined belongs, and acquiring a second cutting parameter extraction table corresponding to the geological parameter and the cutting parameter;
selecting a first cutting parameter extraction table and/or a second cutting parameter extraction table according to the real-time cutting parameters of the coal mining machine, and performing coal mining cutting according to the real-time cutting parameters;
in the automatic coal mining advancing process of the coal mining machine, after a coal cutting period is finished, selecting again to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and performing coal mining cutting according to the real-time cutting parameters; the coal cutting period is a coal cutting process of the coal mining machine advancing for a first preset distance or a second preset distance.
2. The memory cutting method of the coal mining machine according to claim 1, wherein the selecting, by the coal mining machine, real-time cutting parameters to be extracted according to the first cutting parameter extraction table and/or the second cutting parameter extraction table during the automatic coal mining progress, and performing coal mining cutting according to the real-time cutting parameters further comprises:
continuously detecting coal mining result information during the automatic coal mining advancing process of the coal mining machine, judging whether the coal mining result information is within a preset coal mining information threshold range, if not, uploading coal mining abnormity prompting information, and recording current geographical position information, geological parameters and actually adopted cutting parameters;
the coal mining result information comprises actual coal mining amount.
3. The memory cutting method of the coal mining machine according to claim 2, characterized in that the coal mining result information further comprises various actual cutting information;
the judging whether the coal mining result information is within a preset coal mining information threshold range or not, if not, uploading coal mining abnormity prompt information and recording current geographical position information, geological parameters and actually adopted cutting parameters further comprises:
and judging whether each item of actual cutting information is within the cutting parameter range, if not, uploading coal mining abnormity prompt information, recording current geographical position information, geological parameters and actually adopted cutting parameters, and stopping cutting operation.
4. The memory cutting method of the coal mining machine according to claim 3, wherein the judging whether each item of actual cutting information is within a cutting parameter range comprises:
if the current extraction is the first cutting parameter extraction table, judging whether each item of actual cutting information is respectively located in a first cutting parameter range corresponding to the current geographic position information; the first cutting parameter range is the range of the error value of plus or minus five percent of the cutting parameter corresponding to the geographic position information in the first cutting parameter extraction table;
if the current extraction is the second cutting parameter extraction table, judging whether each item of actual cutting information is respectively located in a second cutting parameter range corresponding to the current geological parameter; the second cutting parameter range is a range of error values of plus or minus ten percent of the cutting parameters corresponding to the preset geological information range to which the geological parameters belong in the second cutting parameter extraction table.
5. The memory cutting method of the coal mining machine according to claim 1, wherein the plurality of preset geological information ranges comprises more than 5 preset geological information ranges.
6. The memory cutting method of the coal mining machine according to claim 1, characterized in that the preset geological information range is set according to upper and lower thresholds of each of the geological parameters.
7. The memory cutting method of a coal mining machine according to claim 1, characterized in that each parameter of the geological parameters is algorithmically integrated to obtain the preset geological information range.
8. A memory cutting system of a coal mining machine is characterized by comprising a positioning module, a geological exploration module and a processing module;
in the process that the coal mining machine is manually operated to mine coal, the processing module controls the positioning module to continuously acquire the geographical position information of a coal mining path at intervals of a first preset distance; the processing module stores externally input cutting parameters corresponding to each geographic position on the coal mining path, and processes and obtains a first cutting parameter extraction table corresponding to geographic position information and the cutting parameters;
in the process that the coal mining machine is manually operated to mine coal, the processing module controls the geological exploration module to continuously acquire geological parameters of a coal body to be mined on a coal mining path at intervals of a second preset distance; the processing module stores externally input cutting parameters corresponding to each position of the coal mining body to be mined on the coal mining path, judges which range of a plurality of preset geological information ranges the geological parameters are located in, and connects the stored cutting parameters with the preset geological information range to which the geological parameters of the corresponding position of the coal mining body to be mined belong so as to obtain a second cutting parameter extraction table corresponding to the geological parameters and the cutting parameters;
in the automatic coal mining advancing process of the coal mining machine, the processing module selects to extract real-time cutting parameters according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and controls the coal mining machine to perform coal mining cutting according to the real-time cutting parameters;
in the automatic coal mining advancing process of the coal mining machine, after a coal cutting period is finished, the processing module can select to extract real-time cutting parameters again according to the first cutting parameter extraction table and/or the second cutting parameter extraction table, and controls the coal mining machine to perform coal mining cutting according to the real-time cutting parameters; the coal cutting period is a coal cutting process of the coal mining machine advancing for a first preset distance or a second preset distance.
9. The memory cutting system of the coal mining machine according to claim 8, further comprising a weight detection module, the weight detection module being connected with the scraper conveyor;
in the process of automatic coal mining advancing of the coal mining machine, the processing module controls the weight detection module to continuously detect the actual coal mining amount on the scraper conveyor and judges whether the coal mining result information is within a preset coal mining information threshold range, if not, the processing module uploads coal mining abnormity prompt information and records current geographical position information, geological parameters and cutting parameters actually adopted;
and the processing module judges whether the current extraction is the first cutting parameter extraction table or the second cutting parameter extraction table:
when the current cutting parameter is the first cutting parameter extraction table, the processing module judges whether each item of actual cutting information is respectively located in a first cutting parameter range corresponding to the current geographic position information; the first cutting parameter range is the range of the error value of plus or minus five percent of the cutting parameter corresponding to the geographic position information in the first cutting parameter extraction table;
if the current geological parameter is the second cutting parameter extraction table, the processing module judges whether each item of actual cutting information is respectively located in a second cutting parameter range corresponding to the current geological parameter; the second cutting parameter range is a range of error values of plus or minus ten percent of the cutting parameters corresponding to the preset geological information range to which the geological parameters belong in the second cutting parameter extraction table;
if not, the processing module uploads coal mining abnormity prompt information, records current geographic position information, geological parameters and actually adopted cutting parameters, and controls the coal mining machine to stop cutting operation.
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| CN103147756A (en) * | 2013-03-20 | 2013-06-12 | 中国矿业大学(北京) | Heading machine memory cutting control system and method thereof |
| WO2016134690A2 (en) * | 2015-02-28 | 2016-09-01 | Tiefenbach Control Systems Gmbh | Method for operating the mining machine for coal mining in the underground coal face of a coal mine |
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