CN111605974B - System and method for judging upward movement and downward movement of scraper conveyor of slowly-inclined working face - Google Patents
System and method for judging upward movement and downward movement of scraper conveyor of slowly-inclined working face Download PDFInfo
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- CN111605974B CN111605974B CN202010483692.5A CN202010483692A CN111605974B CN 111605974 B CN111605974 B CN 111605974B CN 202010483692 A CN202010483692 A CN 202010483692A CN 111605974 B CN111605974 B CN 111605974B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000003245 coal Substances 0.000 claims description 25
- 238000011897 real-time detection Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/40—Safety features of loads, equipment or persons
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Abstract
The application provides a work face scraper conveyor that slowly inclines is scurried gliding judgement method and system on, the last first ultrasonic ranging device, the second ultrasonic ranging device that are equipped with of scraper conveyor is connected with the controller, acquires first current distance, the second current distance, calculates first judgement distance, the second judges the distance, judges and show scraper conveyor state and tunnel phenomenon: when the first judgment distance is larger than the first warning distance and the second judgment distance is smaller than the second warning distance, judging that the scraper conveyer slips down; judging that the scraper conveyor moves upwards when the second judgment distance is greater than the second warning distance and the first judgment distance is smaller than the first warning distance; and warns to remind of taking corresponding measures; this application is through the state of two ultrasonic ranging device accurate measurement scraper conveyor in the tunnel to judge the tunnel and whether appear local group bulging, perhaps overexcavate the phenomenon, avoid the erroneous judgement of scurrying the gliding because of the tunnel phenomenon that exists leads to in the tunnelling.
Description
Technical Field
The application relates to the field of scraper conveyor control, in particular to a system and a method for judging the upward movement and the downward movement of a scraper conveyor of a slowly-inclined working face.
Background
The coal seam inclination angle refers to the included angle of the inclined coal seam relative to the horizontal plane. Due to the action of the crustal movement, the coal-based strata which originally are in a horizontal shape are changed, and some coal-based strata are steep, and some coal-based strata are slow and take different forms; the method is divided into four types according to the dip angle of the coal seam: a near horizontal coal seam with a coal seam dip angle of less than 10 degrees; a slowly inclined coal seam with a coal seam inclination angle of 10-25 degrees; the dip angle of the coal seam is 25-45 degrees; steeply inclined coal seams with coal seam inclination angles >45 deg. In coal mining practice, coal seam inversion may also be encountered.
At present, the jujube spring coal mine in Ningxia coal industry is basically in a slowly inclined coal seam and an inclined coal seam, and in the process of mining the inclined coal seam, a hydraulic support can be additionally provided with an anti-falling jack and an anti-sliding jack to ensure the posture of the support and prevent the support from collapsing under general conditions.
However, the hydraulic support cannot be provided with an anti-skidding jack independently in the gently inclined coal seam, whether the scraper conveyor jumps up or down is judged by hydraulic support workers in production, and the scraper conveyor is prevented from jumping up or down by adjusting the posture of the hydraulic support.
Disclosure of Invention
The application provides a method and equipment for judging the upward movement and the downward movement of a scraper conveyor of a slowly-inclined working face, which are used for solving the technical problem that whether the upward movement and the downward movement of the scraper conveyor occur or not is judged by hydraulic support workers in a slowly-inclined coal bed and the upward movement and the downward movement of the scraper conveyor are prevented by adjusting the posture of a hydraulic support.
In order to achieve the purpose, the following technical scheme is adopted in the application:
in a first aspect, a method for judging the upward and downward movement of a scraper conveyor of a slowly-inclined working surface is provided, and the method for judging the upward and downward movement of the scraper conveyor of the slowly-inclined working surface comprises the following steps:
acquiring a first current distance and a second current distance, wherein the first current distance is a real-time detection distance between the scraper conveyor and the upper side of the machine lane, and the second current distance is a real-time detection distance between the scraper conveyor and the lower side of the machine lane;
acquiring a preset first set distance and a preset second set distance;
calculating a first judgment distance and a second judgment distance, wherein the first judgment distance is the difference between the first current distance and a first set distance, and the second judgment distance is the difference between the second current distance and a second set distance;
acquiring a preset first warning distance and a preset second warning distance;
when the first judgment distance is larger than the first warning distance and the second judgment distance is smaller than the second warning distance, judging that the scraper conveyer slides downwards;
and judging that the scraper conveyor moves upwards when the second judgment distance is greater than the second warning distance and the first judgment distance is smaller than the first warning distance.
With reference to the first aspect, in a first implementable manner of the first aspect, the determining method further includes: when the first judgment distance is smaller than the first warning distance and the second judgment distance is smaller than or equal to the second warning distance, judging that the tunnel has the bulging phenomenon;
and judging that the tunnel has the bulging phenomenon when the first judgment distance is smaller than or equal to the first warning distance and the second judgment distance is smaller than the second warning distance.
With reference to the first aspect, in a second implementation manner of the first aspect, the determining method further includes: judging that the roadway has the overexcavation phenomenon when the first judgment distance is greater than the first warning distance and the second judgment distance is greater than or equal to the second warning distance;
and judging that the roadway has the overexcavation phenomenon when the first judgment distance is greater than or equal to the first warning distance and the second judgment distance is greater than the second warning distance.
With reference to the first aspect, in a third implementation manner of the first aspect, the determining method further includes: and when the first judgment distance is equal to the first warning distance and the second judgment distance is equal to the second warning distance, judging that the scraper conveyor does not move upwards or downwards.
In a second aspect, a system for judging the upward and downward movement of a scraper conveyor of a slowly-inclined working surface is provided, wherein the judging system comprises the scraper conveyor, a controller, a display screen and a warning device;
the scraper conveyor is provided with a first ultrasonic ranging device and a second ultrasonic ranging device, the first ultrasonic ranging device is arranged on one side, close to the upper side of the machine lane, of the scraper conveyor, and the second ultrasonic ranging device is arranged on one side, close to the lower side of the machine lane, of the scraper conveyor;
the controller is connected with the first ultrasonic ranging device and the second ultrasonic ranging device and used for acquiring a first current distance and a second current distance, calculating a first judgment distance and a second judgment distance and judging the state or roadway phenomenon of the scraper conveyor;
the display screen is electrically connected with the controller and is used for displaying the state or roadway phenomenon of the scraper conveyor;
the warning device is electrically connected with the controller and the display screen and used for reminding of taking corresponding measures.
With reference to the second aspect, in a first implementable manner of the second aspect, the warning device includes an indicator light and an alarm.
With reference to the second aspect, in a second implementation manner of the second aspect, the controller is connected with the scraper conveyor and is used for automatically adjusting the support pulling frame of the next coal cutting knife according to the state of the scraper conveyor.
The application provides a method and a system for judging the upward and downward movement of a scraper conveyor of a slowly-inclined working face, wherein a first ultrasonic distance measuring device and a second ultrasonic distance measuring device are arranged on the scraper conveyor, and a controller is connected with the first ultrasonic distance measuring device and the second ultrasonic distance measuring device and is used for acquiring a first current distance and a second current distance, wherein the first current distance is a real-time detection distance between the scraper conveyor and an upper wall of a machine lane, and the second current distance is a real-time detection distance between the scraper conveyor and a lower wall of the machine lane; acquiring a preset first set distance and a preset second set distance; calculating a first judgment distance and a second judgment distance, and judging the state or roadway phenomenon of the scraper conveyor: when the first judgment distance is larger than the first warning distance and the second judgment distance is smaller than the second warning distance, judging that the scraper conveyer slides downwards; when the second judgment distance is larger than the second warning distance and the first judgment distance is smaller than the first warning distance, the situation that the scraper conveyer moves upwards is judged, and a display screen is used for displaying the state or roadway phenomenon of the scraper conveyer; the warning device is used for reminding of taking corresponding measures; this application is through the accurate test scraper conveyor state in the tunnel of two ultrasonic ranging device to judge that local group's bulging appears in the tunnel, perhaps surpass dig the phenomenon, avoid the erroneous judgement of the gliding of scurrying on the top that leads to because of the tunnel phenomenon that exists in the tunnelling.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for determining the up-shift and down-shift of a scraper conveyor of a slowly-inclined working surface according to an embodiment of the present application;
fig. 2 is a structural diagram of a system for determining the up-shift and down-shift of a scraper conveyor of a slowly-inclined working surface according to an embodiment of the present application;
FIG. 3 is a diagram illustrating a structure of a scraper conveyor in a system for determining the up-shift and down-shift of a scraper conveyor of a slowly inclined working surface according to an embodiment of the present disclosure;
FIG. 4 is an enlarged view of E in the scraper conveyor section of FIG. 3;
wherein: 1-a scraper conveyor; 11-cross side dumping; 12-a transfer machine; 2-a roadway; 21-machine lane upper wall; 22-machine lane lower wall; 31-a first ultrasonic ranging device; 32-a second ultrasonic ranging device; 4-a controller; 5-a display; 6-warning device.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The present application is described in further detail below with reference to the attached drawing figures:
example one
The embodiment of the application provides a method for judging the upward and downward movement of a scraper conveyor of a slowly-inclined working surface, which is used in the field of scraper conveyor control and is shown in figure 1, and the method comprises the following steps:
s101, obtaining a first current distance A1 and a second current distance A2, wherein the first current distance A1 is a real-time detection distance between the scraper conveyor and the upper side of the machine lane, and the second current distance A2 is a real-time detection distance between the scraper conveyor and the lower side of the machine lane.
S102, acquiring a preset first set distance B1 and a preset second set distance B2.
And S103, calculating a first judgment distance AB1 and a second judgment distance AB2, wherein the first judgment distance AB1 is the difference between the first current distance A1 and a first set distance B1, and the second judgment distance AB2 is the difference between the second current distance A2 and a second set distance B2.
S104, acquiring a preset first warning distance C1 and a preset second warning distance C2.
And S105, judging that the scraper conveyor slips down when the first judgment distance AB1 is greater than the first warning distance C1 and the second judgment distance AB2 is less than the second warning distance C2.
And S106, judging that the scraper conveyor moves upwards when the second judgment distance AB2 is greater than the second warning distance C2 and the first judgment distance AB1 is less than the first warning distance C1.
The judging method further comprises the following steps:
and when the first judgment distance AB1 is smaller than the first warning distance C1 and the second judgment distance AB2 is smaller than or equal to the second warning distance C2, judging that the tunnel has the bulge phenomenon.
And when the first judgment distance AB1 is less than or equal to the first warning distance C1 and the second judgment distance AB2 is less than the second warning distance C2, judging that the tunnel has the bulge phenomenon.
And when the first judgment distance AB1 is greater than the first warning distance C1 and the second judgment distance AB2 is greater than or equal to the second warning distance C2, judging that the roadway has the overexcavation phenomenon.
And when the first judgment distance AB1 is greater than or equal to the first warning distance C1 and the second judgment distance AB2 is greater than the second warning distance C2, judging that the roadway has the overexcavation phenomenon.
When the first judgment distance AB1 is equal to the first warning distance C1 and the second judgment distance AB2 is equal to the second warning distance C2, it is judged that the scraper conveyor does not slide up or down.
The application provides a method for judging the upward movement and the downward movement of a scraper conveyor of a slowly-inclined working face, which is used for acquiring a first current distance and a second current distance, wherein the first current distance is a real-time detection distance between the scraper conveyor and an upper wall of a machine lane, and the second current distance is a real-time detection distance between the scraper conveyor and a lower wall of the machine lane; acquiring a preset first set distance and a preset second set distance; calculating a first judgment distance and a second judgment distance, and judging the state or roadway phenomenon of the scraper conveyor: when the first judgment distance is larger than the first warning distance and the second judgment distance is smaller than the second warning distance, judging that the scraper conveyer slides downwards; when the second judgment distance is larger than the second warning distance and the first judgment distance is smaller than the first warning distance, judging that the scraper conveyor moves upwards, and warning to take corresponding measures; this application is through the accurate test scraper conveyor state in the tunnel of two ultrasonic ranging device to judge that local group's bulging appears in the tunnel, perhaps surpass dig the phenomenon, avoid the erroneous judgement of the gliding of scurrying on the top that leads to because of the tunnel phenomenon that exists in the tunnelling.
Example two
The embodiment of the application provides a slow inclined working face scraper conveyor 1 and flees gliding judgement system for scraper conveyor 1 control field, refer to fig. 2 and show, judgement system includes scraper conveyor 1, controller 4, display screen 5, warning device 6.
Referring to fig. 3, a first ultrasonic ranging device 31 and a second ultrasonic ranging device 32 are arranged on the scraper conveyor 1, the first ultrasonic ranging device 31 is arranged on one side of the cross side dumping 11 on the scraper conveyor 1 close to the upper side 21 of the machine lane, the first ultrasonic ranging device 31 is close to the transfer machine 12, and the second ultrasonic ranging device 32 is arranged on one side of the cross side dumping 11 on the scraper conveyor 1 close to the lower side 22 of the machine lane;
the controller 4 is connected to the first ultrasonic ranging device 31 and the second ultrasonic ranging device 32, and is, as shown in fig. 4, configured to obtain a first current distance a1 and a second current distance a2, where the first current distance a1 is a real-time detection distance between the scraper conveyor 1 and the upper lane side 21, and the second current distance a2 is a real-time detection distance between the scraper conveyor 1 and the lower lane side 22; acquiring a preset first set distance B1 and a preset second set distance B2; calculating a first judgment distance AB1 and a second judgment distance AB2, wherein the first judgment distance AB1 is the difference between the first current distance a1 and a first set distance B1, and the second judgment distance AB2 is the difference between the second current distance a2 and a second set distance B2; acquiring a preset first warning distance C1 and a preset second warning distance C2; judging the state of the scraper conveyor 1 or the lane 2 phenomenon by comparing AB1 and C1 and AB2 and C2; and the controller 4 is connected with the scraper conveyor 1 and is used for automatically adjusting the state of the scraper conveyor 1 when the support of the next coal cutting knife pulls the support.
The display screen 5 is electrically connected with the controller 4 and used for displaying the state of the scraper conveyor 1 or the phenomenon of the roadway 2.
The warning device 6 is electrically connected with the controller 4 and the display screen 5 and used for reminding of taking corresponding measures. The warning device 6 includes an indicator light and an alarm.
The application provides a system for judging the upward and downward movement of a scraper conveyor of a slowly-inclined working face, wherein a first ultrasonic distance measuring device and a second ultrasonic distance measuring device are arranged on the scraper conveyor, and a controller is connected with the first ultrasonic distance measuring device and the second ultrasonic distance measuring device and is used for acquiring a first current distance and a second current distance; acquiring a preset first set distance and a preset second set distance; calculating a first judgment distance and a second judgment distance, and judging that the scraper conveyor slides downwards when the first judgment distance is larger than the first warning distance and the second judgment distance is smaller than the second warning distance; when the second judgment distance is larger than the second warning distance and the first judgment distance is smaller than the first warning distance, judging that the scraper conveyer moves upwards, and judging the state or roadway phenomenon of the scraper conveyer; the display screen is used for displaying the state or roadway phenomenon of the scraper conveyor; the warning device is used for reminding of taking corresponding measures; this application is through the accurate test scraper conveyor state in the tunnel of two ultrasonic ranging device to judge that local group's bulging appears in the tunnel, perhaps surpass dig the phenomenon, avoid the erroneous judgement of the gliding of scurrying on the top that leads to because of the tunnel phenomenon that exists in the tunnelling.
The above-mentioned contents are only for explaining the technical idea of the present application, and the protection scope of the present application is not limited thereby, and any modification made on the basis of the technical idea presented in the present application falls within the protection scope of the claims of the present application.
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments have been discussed in the foregoing disclosure by way of example, it should be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
The entire contents of each patent, patent application publication, and other material cited in this application, such as articles, books, specifications, publications, documents, and the like, are hereby incorporated by reference into this application. Except where the application is filed in a manner inconsistent or contrary to the present disclosure, and except where the claim is filed in its broadest scope (whether present or later appended to the application) as well. It is noted that the descriptions, definitions and/or use of terms in this application shall control if they are inconsistent or contrary to the statements and/or uses of the present application in the material attached to this application.
Claims (3)
1. A method for judging the upward movement and the downward movement of a scraper conveyor of a slowly inclined working surface is characterized by comprising the following steps:
acquiring a first current distance and a second current distance, wherein the first current distance is a real-time detection distance between the scraper conveyor and the upper side of the machine lane, and the second current distance is a real-time detection distance between the scraper conveyor and the lower side of the machine lane;
acquiring a preset first set distance and a preset second set distance;
calculating a first judgment distance and a second judgment distance, wherein the first judgment distance is the difference between the first current distance and a first set distance, and the second judgment distance is the difference between the second current distance and a second set distance;
acquiring a preset first warning distance and a preset second warning distance;
when the first judgment distance is larger than the first warning distance and the second judgment distance is smaller than the second warning distance, judging that the scraper conveyer slides downwards;
judging that the scraper conveyor moves upwards when the second judgment distance is greater than the second warning distance and the first judgment distance is smaller than the first warning distance;
when the first judgment distance is smaller than the first warning distance and the second judgment distance is smaller than or equal to the second warning distance, judging that the tunnel has the bulging phenomenon;
judging that the tunnel has the bulging phenomenon when the first judgment distance is smaller than or equal to the first warning distance and the second judgment distance is smaller than the second warning distance;
judging that the roadway has the overexcavation phenomenon when the first judgment distance is greater than the first warning distance and the second judgment distance is greater than or equal to the second warning distance;
judging that the roadway has the overexcavation phenomenon when the first judgment distance is greater than or equal to the first warning distance and the second judgment distance is greater than the second warning distance;
and when the first judgment distance is equal to the first warning distance and the second judgment distance is equal to the second warning distance, judging that the scraper conveyor does not move upwards or downwards.
2. The upward-shifting and downward-sliding judgment system of the scraper conveyor of the slowly-inclined working face is characterized by adopting the judgment method of claim 1, and comprising the scraper conveyor, a controller, a display screen and a warning device;
the scraper conveyor is provided with a first ultrasonic ranging device and a second ultrasonic ranging device, the first ultrasonic ranging device is arranged on one side, close to the upper side of the machine lane, of the scraper conveyor, and the second ultrasonic ranging device is arranged on one side, close to the lower side of the machine lane, of the scraper conveyor;
the controller is connected with the first ultrasonic ranging device and the second ultrasonic ranging device and used for acquiring a first current distance and a second current distance, calculating a first judgment distance and a second judgment distance and judging the state or roadway phenomenon of the scraper conveyor;
the display screen is electrically connected with the controller and is used for displaying the state or roadway phenomenon of the scraper conveyor;
the warning device is electrically connected with the controller and the display screen and used for reminding of taking corresponding measures;
and the controller is connected with the scraper conveyor and is used for automatically adjusting the state of the scraper conveyor when the support of the next coal cutter pulls the support.
3. The system of claim 2, wherein the warning device includes an indicator light and an alarm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010483692.5A CN111605974B (en) | 2020-06-01 | 2020-06-01 | System and method for judging upward movement and downward movement of scraper conveyor of slowly-inclined working face |
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| CN202010483692.5A CN111605974B (en) | 2020-06-01 | 2020-06-01 | System and method for judging upward movement and downward movement of scraper conveyor of slowly-inclined working face |
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| CN112395661B (en) * | 2020-11-23 | 2023-03-24 | 太原理工大学 | Early warning method for problem of up-shifting and down-shifting of scraper conveyor |
| CN112879097B (en) * | 2021-04-09 | 2022-06-24 | 郑州煤机液压电控有限公司 | Automatic detection method for upward movement or downward movement of coal face conveyor |
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| CN111605974A (en) | 2020-09-01 |
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