CN117361062A - Scraper conveyor load detection method and device - Google Patents
Scraper conveyor load detection method and device Download PDFInfo
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- CN117361062A CN117361062A CN202311467158.5A CN202311467158A CN117361062A CN 117361062 A CN117361062 A CN 117361062A CN 202311467158 A CN202311467158 A CN 202311467158A CN 117361062 A CN117361062 A CN 117361062A
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- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 288
- 238000005065 mining Methods 0.000 claims abstract description 146
- 238000000034 method Methods 0.000 claims abstract description 67
- 230000008569 process Effects 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 8
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Classifications
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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
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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Abstract
The application provides a scraper conveyor load detection method and device, and relates to the technical field of coal mines. The method comprises the following steps: acquiring the idle load of the scraper conveyor; acquiring coal mining amount falling onto a scraper conveyor in the coal mining process of a coal mining machine; acquiring the coal output of a scraper conveyor; acquiring the coal quantity of a pushing area which is moved to a scraper conveyor in the pushing process of the hydraulic support and the scraper conveyor; and determining the current load of the scraper conveyor according to the empty load, the coal mining amount, the coal discharging amount and the coal pushing area amount. According to the real-time load determining method and device, external equipment is not needed, and real-time load of the scraper conveyor can be determined based on basic parameters of the coal mining machine and the scraper conveyor. The load detection method can evaluate the load on the scraper conveyor more conveniently, rapidly and accurately so as to monitor whether the scraper conveyor is overloaded or not better.
Description
Technical Field
The application relates to the technical field of coal mines, in particular to a method and a device for detecting loads of a scraper conveyor.
Background
In the process of stoping, if the scraper conveyor keeps constant rotation speed, the conveyor can meet the transportation requirement of partial conditions in the production process, but the conveyor has certain defects, such as: under constant rotation speed, the load of the scraper conveyor is increased, and risks of conveyor blockage, chain breakage and motor overload are increased; when the actual load of the scraper conveyor is far smaller than the rated load, invalid loss of partial electric energy also exists to a certain extent, so that a calculation method of the coal load of the scraper conveyor is needed to evaluate whether the current scraper conveyor is overloaded or not, and further, the high-speed operation of the scraper conveyor in heavy load and the low-speed operation of the scraper conveyor in light load are realized by adjusting the rotating speed of a frequency converter of the scraper conveyor, the energy consumption is reduced and the production efficiency is improved while the transportation requirement in the production process of the coal mining machine is met.
Disclosure of Invention
The present application aims to solve, at least to some extent, one of the technical problems in the related art.
To this end, an embodiment of a first aspect of the present application provides a method for detecting a load of a scraper conveyor, including:
acquiring the idle load of the scraper conveyor;
acquiring coal mining amount falling onto the scraper conveyor in the coal mining process of the coal mining machine;
acquiring the coal output of the scraper conveyor;
acquiring the coal quantity of a pushing and sliding area which is moved to the scraper conveyor in the pushing and sliding process of the hydraulic support and the scraper conveyor;
and determining the current load of the scraper conveyor according to the empty load, the coal mining amount, the coal discharging amount and the coal pushing area amount.
In some embodiments of the present application, the acquiring the coal mining amount falling onto the scraper conveyor during the coal mining process of the coal mining machine includes: acquiring the coal mining amount of the coal mining machine; determining the running speed of the coal mining machine and the belt speed of the scraper conveyor; determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor; and determining the coal mining amount according to the height of the coal seam on the scraper conveyor and the width of the scraper conveyor.
In some embodiments of the present application, the direction of travel of the shearer is from a drag conveyor nose to a drag conveyor tail; determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H upper part ＝[T 1 /(V 2 +V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of a coal seam on the scraper conveyor in the running process of the coal mining machine from the head of the scraper conveyor to the tail of the scraper conveyor, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 S is the belt speed of the scraper conveyor 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 The density of the coal on the scraper conveyor is the density.
In some embodiments of the present application, the direction of travel of the shearer is from the tail of the drag conveyor to the nose of the drag conveyor; determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H lower part(s) ＝[T 1 /(V 2 -V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of a coal seam on the scraper conveyor in the process of running the coal mining machine from the tail of the scraper conveyor to the head of the scraper conveyor, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 S is the belt speed of the scraper conveyor 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 The density of the coal on the scraper conveyor is the density.
In some embodiments of the present application, the amount of coal moved to the push-slip zone on the blade conveyor during push-slip of the hydraulic mount with the machine is obtained by the following equation:
T 1 ＝[(L 1 +L 2 +…L n )*W 1 *H 1 *ρ 2 ]
wherein T is 1 For the coal quantity of the pushing and sliding area L n Is the pushing and sliding stroke W of the nth hydraulic support 1 For the width of the hydraulic support, H 1 For the coal seam height ρ of the push zone 2 And the coal bed density of the pushing area is obtained.
In some embodiments of the present application, the determining the current load of the scraper conveyor according to the empty weight, the coal mining amount, the coal discharging amount, and the coal pushing area amount includes: calculating the sum of the empty weight, the coal mining amount and the coal pushing area amount; and determining the difference value between the sum value and the coal output as the current load of the scraper conveyor.
An embodiment of a second aspect of the present application provides a scraper conveyor load detection device, including:
the first acquisition module is used for acquiring the empty weight of the scraper conveyor;
the second acquisition module is used for acquiring the coal mining amount falling onto the scraper conveyor in the coal mining process of the coal mining machine;
the third acquisition module is used for acquiring the coal output of the scraper conveyor;
the fourth acquisition module is used for acquiring the coal quantity of the pushing and sliding area which is moved to the scraper conveyor in the pushing and sliding process of the hydraulic support and the scraper conveyor;
and the determining module is used for determining the current load of the scraper conveyor according to the empty load, the coal mining amount, the coal discharging amount and the coal pushing area amount.
In some embodiments of the present application, the second obtaining module is specifically configured to: acquiring the coal mining amount of the coal mining machine; determining the running speed of the coal mining machine and the belt speed of the scraper conveyor; determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor; and determining the coal mining amount according to the height of the coal seam on the scraper conveyor and the width of the scraper conveyor.
In some embodiments of the present application, the direction of travel of the shearer is from a drag conveyor nose to a drag conveyor tail; the second obtaining module is specifically configured to: determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H upper part ＝[T 1 /(V 2 +V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of a coal seam on the scraper conveyor in the running process of the coal mining machine from the head of the scraper conveyor to the tail of the scraper conveyor, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 S is the belt speed of the scraper conveyor 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 The density of the coal on the scraper conveyor is the density.
In some embodiments of the present application, the direction of travel of the shearer is from the tail of the drag conveyor to the nose of the drag conveyor; the second obtaining module is specifically configured to: determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H lower part(s) ＝[T 1 /(V 2 -V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of a coal seam on the scraper conveyor in the process of running the coal mining machine from the tail of the scraper conveyor to the head of the scraper conveyor, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 S is the belt speed of the scraper conveyor 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 The density of the coal on the scraper conveyor is the density.
In some embodiments of the present application, the fourth obtaining module is specifically configured to: the coal quantity of the pushing and sliding area which is moved to the scraper conveyor in the pushing and sliding process of the hydraulic support and the scraper conveyor is obtained through the following formula:
T 1 ＝[(L 1 +L 2 +…L n )*W 1 *H 1 *ρ 2 ]
wherein T is 1 For the coal quantity of the pushing and sliding area L n Is the pushing and sliding stroke W of the nth hydraulic support 1 For the width of the hydraulic support, H 1 For the coal seam height ρ of the push zone 2 And the coal bed density of the pushing area is obtained.
In some embodiments of the present application, the determining module is specifically configured to: calculating the sum of the empty weight, the coal mining amount and the coal pushing area amount; and determining the difference value between the sum value and the coal output as the current load of the scraper conveyor.
An embodiment of a third aspect of the present application provides an electronic device, including: a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored in the memory to implement the method of the first aspect.
An embodiment of a fourth aspect of the present application proposes a computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, the computer-executable instructions being for implementing the method according to the first aspect.
According to the method for detecting the load of the scraper conveyor, external equipment is not needed, and the real-time load of the scraper conveyor can be determined based on basic parameters of the coal mining machine and the scraper conveyor. The load detection method can evaluate the load on the scraper conveyor more conveniently, rapidly and accurately so as to monitor whether the scraper conveyor is overloaded or not, adjust the rotating speed of the frequency converter of the scraper conveyor in time, reduce energy consumption and improve production efficiency.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic flow chart of a method for detecting a load of a scraper conveyor according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a scraper conveyor according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a scraper conveyor load of a shearer according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram illustrating a pushing and sliding process according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a load detection device of a scraper conveyor according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the related art, there is a method of detecting a load of a blade conveyor using an external device such as a sensor, a radiation emitter, an industrial camera, or the like. The partial load detection method only measures parameters at local positions of the scraper conveyor, and further estimates the overall load of the scraper conveyor. Because the actual working face has complex environment, the detection method for estimating the whole load based on the local position parameter measured by the external equipment has poor reliability and low accuracy.
Therefore, the application provides a method and a device for detecting the load of the scraper conveyor, which do not need to install additional external equipment, and detect the load of the scraper conveyor conveniently and accurately. The following describes a method and apparatus for detecting a load of a scraper conveyor according to an embodiment of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a method for detecting a load of a scraper conveyor according to an embodiment of the present application. As shown in fig. 1, the method for detecting the load of the scraper conveyor comprises the following steps:
and 101, acquiring the empty weight of the scraper conveyor.
It should be noted that fig. 2 is a schematic diagram of an empty load of the scraper conveyor according to the embodiment of the present application, where the empty load of the scraper conveyor is a load of the scraper conveyor when no coal is conveyed, for example, a weight of a conveyor belt on the scraper conveyor.
Step 102, acquiring coal mining amount falling onto a scraper conveyor in the coal mining process of the coal mining machine.
Fig. 3 is a schematic diagram of a scraper conveyor load when a coal mining machine is used for coal mining according to an embodiment of the present application. In one implementation, the shearer mining amount T per minute may be calculated by the following formula 2 ：
T 2 ＝V 1 *M 1 *H 2 *ρ 3
Wherein V is 1 For the running speed of the coal mining machine，M 1 For cutting the drum of the coal mining machine, H 2 For the height ρ of the shearer cutting drum 3 Is the density of the coal wall. Operating speed V of coal cutter 1 Can be measured by an encoder speed measuring mechanism arranged on the machine body of the coal mining machine.
According to the coal mining quantity T 2 Operating speed V of coal cutter 1 And belt speed V of scraper conveyor 2 The height of the coal seam on the scraper conveyor is determined. And determining the coal collection amount according to the height of the coal layer on the scraper conveyor and the width of the scraper conveyor.
As an example, when the traveling direction of the shearer is from the head of the drag conveyor to the tail of the drag conveyor (upward travel of the shearer), the height of the coal seam on the drag conveyor may be determined by the following formula according to the amount of shearer, the traveling speed of the shearer, and the belt speed of the drag conveyor:
H upper part ＝[T 2 /(V 2 +V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of the coal seam on the scraper conveyor in the running process of the coal mining machine from the scraper conveyor head to the scraper conveyor tail, T 2 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 Is the belt speed of the scraper conveyor, S 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 Is the density of the coal on the scraper conveyor.
According to the height H of the coal bed on the scraper conveyor Upper part And width W of scraper conveyor 2 Determining the coal collection amount T of coal per minute Upper part 。
T Upper part ＝S 1 *H Upper part *W 2 *ρ 1
When the running direction of the coal mining machine is from the tail of the scraper conveyor to the head of the scraper conveyor (the coal mining machine runs down), the height of the coal seam on the scraper conveyor can be determined according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H lower part(s) ＝[T 2 /(V 2 -V 1 )]*S 1 *ρ 1
Wherein H is Lower part(s) For the height of the coal seam on the scraper conveyor in the process of running the coal mining machine from the tail of the scraper conveyor to the head of the scraper conveyor, T 2 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 Is the belt speed of the scraper conveyor, S 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 Is the density of the coal on the scraper conveyor.
According to the height H of the coal bed on the scraper conveyor Lower part(s) And width W of scraper conveyor 2 Determining the coal collection amount T of coal per minute Upper part 。
T Lower part(s) ＝S 1 *H Lower part(s) *W 2 *ρ 1
And 103, obtaining the coal output of the scraper conveyor.
In one implementation, when the direction of travel of the shearer is from the drag conveyor nose to the drag conveyor tail, the coal output per minute T of the drag conveyor can be determined by the following equation Go out and go up ：
T Go out and go up ＝V 2 *60*W 2 *H Upper part *ρ 1
Wherein V is 2 For belt speed (in units of seconds) of scraper conveyor, W 2 For the width of the scraper conveyor H Upper part For the height ρ of the coal seam on the scraper conveyor in the running process of the coal mining machine from the scraper conveyor head to the scraper conveyor tail 1 Is the density of the coal on the scraper conveyor.
When the running direction of the coal mining machine is from the tail of the scraper conveyor to the head of the scraper conveyor, the coal output quantity T of the scraper conveyor per minute can be determined by the following formula Go out downwards ：
T Go out downwards ＝V 2 *60*W 2 *H Lower part(s) *ρ 1
Wherein V is 2 For belt speed (in units of seconds) of scraper conveyor, W 2 For the width of the scraper conveyor H Lower part(s) For the height ρ of the coal seam on the scraper conveyor in the process of running the coal mining machine from the tail of the scraper conveyor to the head of the scraper conveyor 1 Is the density of the coal on the scraper conveyor.
And 104, acquiring the coal quantity of the pushing area which is moved to the scraper conveyor in the pushing process of the hydraulic support and the scraper conveyor.
In the process of cutting coal bodies by the coal cutter, coal blocks cut from a coal wall are conveyed outwards by a scraper conveyor. And at the position of the coal cutter after cutting, the hydraulic support utilizes the friction force between the support and the top and bottom plates to push the scraper conveyor to the direction of the coal wall (namely, the pushing and sliding process of the scraper conveyor). Fig. 4 is a schematic diagram of a pushing and sliding process of a follower according to an embodiment of the present application. And a part of the coal blocks cut by the coal mining machine fall on the scraper conveyor to be conveyed outwards, and the other part of the coal blocks fall between the scraper conveyor and the cut coal wall. As shown in fig. 4, during the pushing and sliding process of the hydraulic support and the machine, the coal blocks in the pushing and sliding area are pushed to the direction of the coal wall along with the scraper conveyor and move onto the scraper conveyor.
In one implementation, the amount of coal moved to the pushing area on the scraper conveyor per minute during pushing of the hydraulic mount with the machine can be calculated by the following formula:
T 1 ＝[(L 1 +L 2 +…L n )*W 1 *H 1 *ρ 2 ]
wherein T is 1 To push the coal quantity in the slip region, L n For the pushing and sliding stroke of the nth hydraulic support every minute, W 1 For the width of the hydraulic support, H 1 To push the coal seam height of the sliding region ρ 2 Coal seam density (H) for the push zone 1 And ρ 2 May be an empirical value).
And 105, determining the current load of the scraper conveyor according to the empty weight, the coal mining amount, the coal output amount and the coal pushing area amount.
In some embodiments of the present application, the sum of the empty weight, the amount of coal mined, and the amount of coal in the push zone may be calculated with reference to the following formulas. The difference between the sum and the coal output is determined as the current load of the scraper conveyor.
When the running direction of the coal mining machine is from the scraper conveyor head to the scraper conveyor tail:
T on the whole ＝T Empty space +T Upper part +T 1 -T Go out and go up
Wherein T is On the whole T is the current load of the scraper conveyor when the coal mining machine ascends Empty space For the empty weight of the scraper conveyor, T Upper part T is the coal mining amount when the coal mining machine is ascending 1 To push the coal quantity in the slip region, T Go out and go up The coal output of the scraper conveyor when the coal mining machine is ascending is the coal output of the scraper conveyor.
When the running direction of the coal mining machine is from the tail of the scraper conveyor to the head of the scraper conveyor:
T general lower part ＝T Empty space +T Lower part(s) +T 1 -T Go out downwards
Wherein T is General lower part T is the current load of the scraper conveyor when the coal mining machine descends Empty space For the empty weight of the scraper conveyor, T Lower part(s) T is the coal mining amount when the coal mining machine descends 1 To push the coal quantity in the slip region, T Go out downwards The coal output of the scraper conveyor when the coal mining machine descends.
And judging whether the scraper conveyor is overloaded currently or not based on the current load of the scraper conveyor. If the current load is compared with the rated load of the scraper conveyor, when the current load is larger than the rated load, the current overload of the scraper conveyor can be determined, and the rotating speed of the frequency converter of the scraper conveyor needs to be adjusted in real time according to the current load so as to improve the conveying efficiency.
By implementing the embodiment of the application, the real-time load of the scraper conveyor can be determined based on the basic parameters of the coal mining machine and the scraper conveyor without adopting external equipment. The load detection method can evaluate the load on the scraper conveyor more conveniently, rapidly and accurately so as to monitor whether the scraper conveyor is overloaded or not, adjust the rotating speed of the frequency converter of the scraper conveyor in time, reduce energy consumption and improve production efficiency.
Fig. 5 is a schematic structural diagram of a load detection device of a scraper conveyor according to an embodiment of the present application. As shown in fig. 5, the scraper conveyor load detection device includes:
a first acquisition module 501 is used to acquire the empty weight of the scraper conveyor.
The second obtaining module 502 is configured to obtain an amount of coal falling onto the scraper conveyor during the coal mining process of the coal mining machine.
And a third acquisition module 503, configured to acquire a coal output of the scraper conveyor.
And a fourth acquisition module 504, configured to acquire the amount of coal moving to the pushing area on the scraper conveyor during the pushing process of the hydraulic support and the scraper conveyor.
A determining module 505 is configured to determine a current load of the scraper conveyor according to the empty weight, the coal mining amount, the coal discharging amount, and the coal pushing area amount.
In some embodiments of the present application, the second obtaining module 502 is specifically configured to: acquiring the coal mining amount of a coal mining machine; determining the running speed of the coal mining machine and the belt speed of the scraper conveyor; determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor; and determining the coal collection amount according to the height of the coal layer on the scraper conveyor and the width of the scraper conveyor.
In some embodiments of the present application, the direction of travel of the shearer is from the drag conveyor nose to the drag conveyor tail; the second obtaining module 502 is specifically configured to: determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H upper part ＝[T 1 /(V 2 +V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of the coal seam on the scraper conveyor in the running process of the coal mining machine from the scraper conveyor head to the scraper conveyor tail, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 Is the belt speed of the scraper conveyor, S 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 Is the density of the coal on the scraper conveyor.
In some embodiments of the present application, the direction of travel of the shearer is from the tail of the drag conveyor to the nose of the drag conveyor; the second obtaining module 502 is specifically configured to: determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H lower part(s) ＝[T 1 /(V 2 -V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of the coal seam on the scraper conveyor in the process of running the coal mining machine from the tail of the scraper conveyor to the head of the scraper conveyor, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 Is the belt speed of the scraper conveyor, S 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 Is the density of the coal on the scraper conveyor.
In some embodiments of the present application, the fourth obtaining module 504 is specifically configured to: the coal quantity of the pushing and sliding area which is moved to the scraper conveyor in the pushing and sliding process of the hydraulic support and the scraper conveyor is obtained through the following formula:
T 1 ＝[(L 1 +L 2 +…L n )*W 1 *H 1 *ρ 2 ]
wherein T is 1 To push the coal quantity in the slip region, L n Is the pushing and sliding stroke W of the nth hydraulic support 1 For the width of the hydraulic support, H 1 To push the coal seam height of the sliding region ρ 2 Is the coal seam density of the push-slip zone.
In some embodiments of the present application, the determining module 505 is specifically configured to: and calculating the sum of the empty weight, the coal mining amount and the coal pushing area. The difference between the sum and the coal output is determined as the current load of the scraper conveyor.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
In order to achieve the above embodiments, the present application further proposes an electronic device including: a processor, and a memory communicatively coupled to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the methods provided by the previous embodiments.
In order to implement the above-mentioned embodiments, the present application also proposes a computer-readable storage medium in which computer-executable instructions are stored, which when executed by a processor are adapted to implement the methods provided by the foregoing embodiments.
In the foregoing descriptions of embodiments, descriptions of the terms "one embodiment," "some embodiments," "example," "particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. The method for detecting the load of the scraper conveyor is characterized by comprising the following steps of:
acquiring the idle load of the scraper conveyor;
acquiring coal mining amount falling onto the scraper conveyor in the coal mining process of the coal mining machine;
acquiring the coal output of the scraper conveyor;
acquiring the coal quantity of a pushing and sliding area which is moved to the scraper conveyor in the pushing and sliding process of the hydraulic support and the scraper conveyor;
and determining the current load of the scraper conveyor according to the empty load, the coal mining amount, the coal discharging amount and the coal pushing area amount.
2. The method of claim 1, wherein the acquiring the amount of coal that falls onto the blade conveyor during the shearer mining process comprises:
acquiring the coal mining amount of the coal mining machine;
determining the running speed of the coal mining machine and the belt speed of the scraper conveyor;
determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor;
and determining the coal mining amount according to the height of the coal seam on the scraper conveyor and the width of the scraper conveyor.
3. The method of claim 2, wherein the direction of travel of the shearer is from a drag conveyor nose to a drag conveyor tail; determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H upper part ＝[T 1 /(V 2 +V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of a coal seam on the scraper conveyor in the running process of the coal mining machine from the head of the scraper conveyor to the tail of the scraper conveyor, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 S is the belt speed of the scraper conveyor 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 The density of the coal on the scraper conveyor is the density.
4. The method of claim 2, wherein the direction of travel of the shearer is from a drag conveyor tail to a drag conveyor nose; determining the height of the coal seam on the scraper conveyor according to the coal mining amount, the running speed of the coal mining machine and the belt speed of the scraper conveyor by the following formula:
H lower part(s) ＝[T 1 /(V 2 -V 1 )]*S 1 *ρ 1
Wherein H is Upper part For the height of a coal seam on the scraper conveyor in the process of running the coal mining machine from the tail of the scraper conveyor to the head of the scraper conveyor, T 1 For coal mining volume, V 1 For the running speed of the coal mining machine, V 2 S is the belt speed of the scraper conveyor 1 ρ is the distance of the coal mining machine from the scraper conveyor head 1 The density of the coal on the scraper conveyor is the density.
5. The method of claim 1, wherein the amount of coal moved to the push zone on the blade conveyor during hydraulic prop and prop push is obtained by the following equation:
T 1 ＝[(L 1 +L 2 +…L n )*W 1 *H 1 *ρ 2 ]
wherein T is 1 For the coal quantity of the pushing and sliding area L n Is the pushing and sliding stroke W of the nth hydraulic support 1 For the width of the hydraulic support, H 1 For the coal seam height ρ of the push zone 2 And the coal bed density of the pushing area is obtained.
6. The method of claim 1, wherein said determining a current load of said scraper conveyor based on said empty weight, said coal mining amount, said coal discharging amount, and said push zone coal amount comprises:
calculating the sum of the empty weight, the coal mining amount and the coal pushing area amount;
and determining the difference value between the sum value and the coal output as the current load of the scraper conveyor.
7. A scraper conveyor load detection device, comprising:
the first acquisition module is used for acquiring the empty weight of the scraper conveyor;
the second acquisition module is used for acquiring the coal mining amount falling onto the scraper conveyor in the coal mining process of the coal mining machine;
the third acquisition module is used for acquiring the coal output of the scraper conveyor;
the fourth acquisition module is used for acquiring the coal quantity of the pushing and sliding area which is moved to the scraper conveyor in the pushing and sliding process of the hydraulic support and the scraper conveyor;
and the determining module is used for determining the current load of the scraper conveyor according to the empty load, the coal mining amount, the coal discharging amount and the coal pushing area amount.
8. The apparatus of claim 7, wherein the determining module is specifically configured to:
calculating the sum of the empty weight, the coal mining amount and the coal pushing area amount;
and determining the difference value between the sum value and the coal output as the current load of the scraper conveyor.
9. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 1-6.
10. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311467158.5A CN117361062A (en) | 2023-11-06 | 2023-11-06 | Scraper conveyor load detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311467158.5A CN117361062A (en) | 2023-11-06 | 2023-11-06 | Scraper conveyor load detection method and device |
Publications (1)
| Publication Number | Publication Date |
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| CN117361062A true CN117361062A (en) | 2024-01-09 |
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|---|---|---|---|
| CN202311467158.5A Pending CN117361062A (en) | 2023-11-06 | 2023-11-06 | Scraper conveyor load detection method and device |
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| Country | Link |
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| CN (1) | CN117361062A (en) |
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2023
- 2023-11-06 CN CN202311467158.5A patent/CN117361062A/en active Pending
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