CN110104408B - Method and system for tracking and controlling material flow on belt conveyor - Google Patents
Method and system for tracking and controlling material flow on belt conveyor Download PDFInfo
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- CN110104408B CN110104408B CN201910512749.7A CN201910512749A CN110104408B CN 110104408 B CN110104408 B CN 110104408B CN 201910512749 A CN201910512749 A CN 201910512749A CN 110104408 B CN110104408 B CN 110104408B
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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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Abstract
The embodiment of the invention provides a method for tracking and controlling material flow on a belt conveyor, which comprises the following steps: acquiring material flow information output to the belt conveyor by the reclaimer and the transmission speed of the belt conveyor; and generating first synchronous transmission simulation information of the material flow in real time according to the material flow information and the transmission speed of the belt conveyor. Through the technical scheme, the position information of the material flow on the belt can be known in real time at the control end, and then a judgment condition can be provided for the energy-saving control of the belt.
Description
Technical Field
The invention relates to transmission control of a belt conveyor, in particular to a method and a system for tracking and controlling material flow on the belt conveyor.
Background
In the actual production process, due to the lack of necessary detection means, the position of material flow on the conveying belt is difficult to accurately grasp, and the position information of the material flow on the belt is known in real time, so that the accurate time control cannot be carried out on the starting and stopping of the belt. In various application scenarios, the belt is often idled for a long time due to safety and other considerations, which not only reduces the working efficiency, but also wastes a lot of energy.
The existing market has some belt material flow tracking methods, common ranging modes such as laser and radar are adopted, the cost is high, the stability is not high, and for some special occasions, the method is difficult to build a platform and the working efficiency is not high.
Disclosure of Invention
The invention aims to provide a method and a system for tracking and controlling material flow on a belt conveyor, wherein the method can generate first synchronous transmission simulation information of the material flow in real time according to the material flow information and the transmission speed of the belt conveyor by acquiring the material flow information output to the belt conveyor by a material taking machine and the transmission speed of the belt conveyor, so that the position information of the material flow on the belt conveyor can be known in real time at a control end, and judgment conditions can be provided for energy-saving control of the belt conveyor.
In order to achieve the above object, an embodiment of the present invention provides a method for tracking and controlling material flow on a belt, including:
acquiring material flow information output to the belt conveyor by the reclaimer and the transmission speed of the belt conveyor; and
and generating first synchronous transmission simulation information of the material flow in real time according to the material flow information and the transmission speed of the belt conveyor.
Optionally, the obtaining of the material flow information output by the reclaimer to the belt conveyor includes:
acquiring first material passing information detected by a first material flow detection module, wherein the first material flow detection module is arranged at a blanking port of the reclaimer;
wherein the first material passing information comprises:
and the time information that the head end and the tail end of a material flow section formed after the material is blanked to the belt conveyor respectively pass through the first material flow detection module.
Optionally, the generating, in real time, first synchronous transmission simulation information of the material flow according to the material flow information and the transmission speed of the belt conveyor includes:
and generating first synchronous transmission simulation information of each material flow section in real time according to the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module and the transmission speed of the belt conveyor.
Optionally, the method further includes:
acquiring second material flow information detected by a second material flow detection module, wherein the second material flow detection module is arranged at the tail of each level of belt conveyor, and the second material flow information comprises time information when the head end and the tail end of each material flow section actually pass through the second material flow detection module;
and correcting the first synchronous transmission simulation information according to the second material passing information.
Optionally, the method further includes:
acquiring third material passing information detected by a third material flow detection module, wherein the third material flow detection module is arranged at the head of a secondary belt conveyor, the secondary belt conveyor is other belt conveyors except the primary belt conveyor, and the third material passing information comprises: the time information that the head end and the tail end of a material flow section formed after the material is discharged to the belt conveyor respectively pass through the third material flow detection module is obtained;
generating second synchronous transmission simulation information of the material flow according to the third material passing information detected by the third material flow detection module;
and correcting the second synchronous transmission simulation information according to the second material passing information.
Optionally, the method includes:
according to the second material passing information, under the condition that the head end of the material flow is determined to be transmitted to the tail of the current belt conveyor, starting the next belt conveyor after delaying a first set time; and
according to the second material passing information, under the condition that the tail end of the material flow is transmitted to the tail of the current belt conveyor, the current belt conveyor is closed after a first set time is delayed;
wherein the first set time is the transit time of the stream from the inlet to the outlet of the transfer port.
Optionally, the method further includes:
after the belt conveyor is started, under the condition that the material flow is detected for the first time, the head end of the material flow is judged to be transmitted to the tail of the current belt conveyor; and
and in the material flow transmission process, under the conditions that the measured value of a belt scale of the reclaimer is smaller than the set weight after the reclaimer is determined to be stopped and the material flow is not detected through a plurality of detections at the tail part of the belt conveyor, the tail end of the material flow is judged to be transmitted to the tail part of the current belt conveyor.
Optionally, the method further includes:
the first set time is pre-calculated according to the following formula:
wherein T represents the transit time of the flow from the inlet of the adapter to the outlet of the adapter, T1Indicating the moment, T, at which the head end of the material flow is transferred to the tail of the current belt conveyor2And the time when the head end of the material flow is transmitted to the head part of the next-stage belt conveyor is represented, L represents the transmission distance from the tail part of the current belt conveyor to the adapter, and v represents the transmission speed of the belt conveyor.
Optionally, the method further includes:
pre-calculating a second set time according to the following formula, and delaying the second set time t to start the ship loader under the condition that the head end of the material flow is transmitted to the tail part of the last stage belt conveyor:
wherein l represents the transmission distance between the tail of the last-stage belt conveyor and the ship loader, v represents the transmission speed of the belt conveyor, and t represents the transmission speed of the ship loadersRepresenting the time required for the start-up of the loader.
The embodiment of the invention also provides a system for tracking and controlling the material flow on the belt, which comprises:
the data acquisition unit is used for acquiring material flow information output to the belt conveyor by the material taking machine and the transmission speed of the belt conveyor; and
and the simulator is used for generating first synchronous transmission simulation information of the material flow in real time according to the material flow information and the transmission speed of the belt conveyor.
Optionally, the data collector comprises a first material flow detection module;
the first material flow detection module is used for acquiring first material passing information, wherein the first material flow detection module is arranged at a blanking port of the reclaimer;
wherein the first material passing information comprises:
and the time information that the head end and the tail end of a material flow section formed after the material is blanked to the belt conveyor respectively pass through the first material flow detection module.
Optionally, the generating, in real time, first synchronous transmission simulation information of the material flow according to the material flow information and the transmission speed of the belt conveyor includes:
and the simulator generates first synchronous transmission simulation information of each material flow section in real time according to the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module and the transmission speed of the belt conveyor.
Optionally, the data collector further includes: a second stream detection module;
the second material flow detection module is used for acquiring second material flow information, wherein the second material flow detection module is arranged at the tail of each level of belt conveyor, and the second material flow information comprises time information when the head end and the tail end of each material flow section actually pass through the second material flow detection module;
the simulator is also used for correcting the first synchronous transmission simulation information according to the second material passing information.
Optionally, the data collector further includes: a third stream detection module;
the third material flow detection module is used for acquiring third material passing information, wherein the third material flow detection module is arranged at the head of a secondary belt conveyor, and the secondary belt conveyor is the other belt conveyors except the primary belt conveyor;
wherein the third material passing information comprises:
the time information that the head end and the tail end of a material flow section formed after the material is discharged to the belt conveyor respectively pass through the third material flow detection module is obtained;
the simulator is further configured to perform the following operations:
generating second synchronous transmission simulation information of the material flow according to the third material passing information detected by the third material flow detection module; and
and correcting the second synchronous transmission simulation information according to the second material passing information.
Optionally, the system further comprises:
a computing controller to perform the following operations:
according to the second material passing information, under the condition that the head end of the material flow is determined to be transmitted to the tail of the current belt conveyor, starting the next belt conveyor after delaying a first set time; and
according to the second material passing information, under the condition that the tail end of the material flow is transmitted to the tail of the current belt conveyor, the current belt conveyor is closed after a first set time is delayed;
wherein the first set time is the transit time of the stream from the inlet to the outlet of the transfer port.
Optionally, the computing controller is configured to perform the following operations:
under the condition that the second material flow detection module detects the material flow for the first time after the belt conveyor is started, judging that the head end of the material flow is transmitted to the tail part of the current belt conveyor; and
and in the material flow transmission process, under the condition that the measured value of the belt scale of the reclaimer is smaller than the set weight after the reclaimer is stopped and the material flow is not detected by the second material flow detection module through a plurality of detections, the tail end of the material flow is judged to be transmitted to the tail part of the current belt conveyor.
Optionally, the calculation controller is further configured to calculate the first set time in advance according to the following formula:
wherein T represents the transit time of the flow from the inlet of the adapter to the outlet of the adapter, T1Indicating the moment, T, at which the head end of the material flow is transferred to the tail of the current belt conveyor2And the time when the head end of the material flow is transmitted to the head part of the next-stage belt conveyor is represented, L represents the transmission distance from the tail part of the current belt conveyor to the adapter, and v represents the transmission speed of the belt conveyor.
Optionally, the calculation controller is further configured to calculate a second set time t in advance according to the following formula, and delay the start of the ship loader by the second set time t if it is determined that the head end of the material flow is transmitted to the tail of the last stage of belt conveyor:
wherein l represents the transmission distance between the tail of the last-stage belt conveyor and the ship loader, v represents the transmission speed of the belt conveyor, and t represents the transmission speed of the ship loadersRepresenting the time required for the start-up of the loader.
Optionally, the first material flow detection module, the second material flow detection module and the third material flow detection module are ultrasonic distance sensors.
According to the technical scheme, the material flow information output to the belt conveyor by the material taking machine and the transmission speed of the belt conveyor are obtained in real time, the first synchronous transmission simulation information of the material flow can be generated in real time according to the obtained material flow information and the transmission speed of the belt conveyor, so that the position information of the material flow on the belt conveyor can be known in real time at the control end, and further judgment conditions can be provided for energy-saving control of the belt conveyor.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a schematic basic flow diagram of a method for tracking a material flow on a belt conveyor according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for tracking material flow on a belt conveyor according to an embodiment of the present invention;
FIG. 3 is a basic flow chart of a method for tracking and controlling material flow on a belt conveyor according to an embodiment of the invention;
FIG. 4 is a schematic flow chart of a method for tracking and controlling material flow on a belt conveyor according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a system for tracking and controlling material flow on a belt conveyor according to an embodiment of the present invention;
fig. 6 is a schematic diagram of synchronous transmission simulation based on the method for tracking and controlling the material flow on the belt conveyor according to the embodiment of the invention.
Description of the reference numerals
1 reclaimer 2 first-stage belt feeder
3 first material flow detection module 4 second material flow detection module
5 third material flow detection module 6 switching interface
7 second-stage belt conveyor 8 ship loader
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Description of name classification:
the first-stage belt conveyor is used for conveying the materials output by the reclaimer to a destination, wherein the belt conveyor used for receiving the unloading of the reclaimer is the first-stage belt conveyor;
and the secondary belt conveyors, except the first belt conveyor, are secondary belt conveyors, and can comprise a second belt conveyor and a third belt conveyor … according to the connection sequence
Material flow, wherein all materials output by the material taking machine from the beginning of material transmission to the stop of material taking form material flow on the belt conveyor;
and the material flow section forms a plurality of material flow sections after material flow cutoff occurs in the unloading process of the reclaimer or the unloading process of the adapter.
Fig. 1 is a schematic diagram illustrating a basic flow of a method for tracking a material flow on a belt according to an embodiment of the present invention, as shown in fig. 1, after a material conveying operation is started, a reclaimer reclaims a material pile and discharges the material pile to a first-stage belt through a discharge opening of the reclaimer, and the material forms a material flow on the first-stage belt. In order to know the transmission position of the material flow on the belt conveyor in real time, the tracking method can acquire the material flow information of the material taking machine discharged to the first-stage belt conveyor in real time, and can also acquire the transmission speed of the belt conveyor in real time (wherein, the transmission speeds of the belt conveyors in all stages are the same). The first synchronous transmission simulation information of the material flow can be generated in real time according to the acquired material flow information and the transmission speed of the belt conveyor, so that a user can know the transmission condition of the material flow on the belt conveyor and the transmission position of the material flow in real time at a monitoring end.
Wherein, because the position of the whole material of getting of reclaimer is for first level belt feeder removal, specifically, the reclaimer removes and gets the material along with the material heap parking position, for the stability of guaranteeing to the reclaimer detection of unloading, can set up the first material stream detection module that is used for detecting the material stream information that the reclaimer was unloaded in the blanking mouth department of reclaimer to avoid setting up the material stream detection module on the belt feeder and can't continue the problem that detects after the reclaimer removes. Specifically, the first material flow detection module is configured to detect first material flow information, where the first material flow information may include time information when the head and the tail of a material flow segment formed after the material is discharged to the belt conveyor respectively pass through the first material flow detection module.
Under the condition that the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module is determined, simulation display can be carried out on the transmission condition of the material flow transmitted on the first-stage belt conveyor by combining the transmission speed of the belt conveyor, namely, first synchronous transmission simulation information of each material flow section is generated in real time according to the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module and the transmission speed of the belt conveyor. The first synchronous transmission simulation information is the real-time transmission position of the simulation material flow on the first-stage belt conveyor.
Fig. 2 shows a schematic flow chart of a method for tracking the material flow on the belt conveyor according to an embodiment of the present invention, as shown in fig. 2, in order to correct the deviation, the transmission position of each material flow section is inevitably deviated from the first synchronous transmission simulation information in the actual transmission process of the material flow, and the first synchronous transmission simulation information may be corrected by the second material passing information, specifically, the second material flow detection module arranged at the tail part of each stage of the belt conveyor can be used for detecting the second material flow information, the second material passing information comprises the time information that the head end and the tail end of each material flow section actually pass through the second material flow detection module, the first synchronous transmission simulation information is corrected according to the time information that the head end and the tail end of each material flow section actually pass through the second material flow detection module, so that the actual transmission position of each material flow section is obtained.
Fig. 3 shows a basic flow diagram of a method for tracking and controlling a material flow on a belt conveyor according to an embodiment of the present invention, and as shown in fig. 3, start and stop of the belt conveyor may also be controlled according to an actual transmission position of the material flow, specifically, a position where a head end and a tail end of the material flow are transmitted to a current belt conveyor is determined, specifically, whether the head end and the tail end of the material flow are transmitted to a tail portion (a second material flow detection module) of the current belt conveyor is determined, where, in a case where the head end of the material flow is transmitted to the tail portion of the current belt conveyor, a next-stage belt conveyor is started by delaying a first set time, and so on, controlling the belt conveyor to start stage by stage according to a transmission position of the head end of the material flow is achieved. Similarly, the conveying position of the material flow end relative to the belt conveyor is aimed at, wherein in the case that the end of the material flow is conveyed to the tail of the current belt conveyor, the current belt conveyor is closed by delaying the first set time, so that the belt conveyor main machine is controlled to be closed according to the conveying position of the material flow end. Wherein, the belt conveyors at each level are connected through the switching interface, and the switching interface provides reposition of redundant personnel and accent to the function, so that the material flow is transmitted to the switching interface and is shunted to secondary belt conveyor through the belt conveyor from the initial point, transmits the material flow to each destination (shipment machine) finally. The first set time is a pre-stored time, specifically, a transit time of the material flow from the inlet of the adapter to the outlet of the adapter.
And determining whether the head end and the tail end of the material flow are transmitted to the tail part of the belt conveyor, wherein after the belt conveyor is started, the head end of the material flow is judged to be transmitted to the tail part of the current belt conveyor under the condition that the tail part of the belt conveyor detects the material flow for the first time. And in the material flow transmission process, in the case that the belt scale metering value of the reclaimer is determined to be smaller than the set weight after the reclaimer is stopped and the material flow is not detected by the second material flow detection module at the tail part of the belt conveyor through a plurality of (for example, 3) detections, the material flow end is judged to be transmitted to the tail part of the current belt conveyor.
Regarding the pre-stored first set time, it may specifically be pre-calculated according to the following formula, and store the calculated first set time locally:
wherein T represents the transit time of the flow from the inlet of the adapter to the outlet of the adapter, T1Indicating the moment, T, at which the head end of the material flow is transferred to the tail of the current belt conveyor2And the time when the head end of the material flow is transmitted to the head part of the next-stage belt conveyor is represented, L represents the transmission distance from the tail part of the current belt conveyor to the adapter, and v represents the transmission speed of the belt conveyor.
After secondary belt feeder starts, the material falls to secondary belt feeder (for example on the second level belt feeder) by the blanking mouth of switching mouth, because the material has accomplished the blanking again to secondary belt feeder by the switching mouth, the material stream section that forms after the blanking also changes thereupon, consequently, for the accurate monitoring to the material stream transmission condition, can be through setting up the third material stream detection module at each secondary belt feeder prelude and detect the third material information of crossing, wherein, this third material information of crossing includes: the head and tail ends of material flow sections formed after materials are blanked to the belt conveyor respectively pass through the time information of the third material flow detection module, under the condition that the head and tail ends of the material flow sections respectively pass through the time information of the third material flow detection module, simulation display can be carried out on the transmission condition of the material flow transmitted on the secondary belt conveyor by combining the transmission speed of the belt conveyor, namely, according to the fact that the head and tail ends of each material flow section respectively pass through the time information of the third material flow detection module and the transmission speed of the belt conveyor, second synchronous transmission simulation information of each material flow section is generated in real time. The second synchronous transmission simulation information is the real-time transmission position of the simulation material flow on the secondary belt conveyor.
Similarly, the second synchronous transmission simulation information can be corrected according to the second material flow detection module arranged on the secondary belt conveyor and detected second material flow information. The whole transmission process of the material flow is subjected to analog tracking and analog information is synchronously transmitted for correction by the tracking method.
Fig. 4 is a schematic flow chart of a method for tracking and controlling a material flow on a belt conveyor according to an embodiment of the present invention, and as shown in fig. 4, the method may further include delaying the start of the ship loader for a second set time if it is determined that the head end of the material flow is transmitted to the tail end of the last stage belt conveyor, where the second set time t may be calculated in advance by the following formula:
wherein l represents the transmission distance between the tail of the last-stage belt conveyor and the ship loader, v represents the transmission speed of the belt conveyor, and t represents the transmission speed of the ship loadersRepresenting the time required for the start-up of the loader.
Fig. 5 shows a schematic structural diagram of a system for tracking and controlling material flow on a belt conveyor according to an embodiment of the present invention, and as shown in fig. 5, the system may include a data collector and a simulator, where the data collector may obtain information of material flow discharged from a material taking machine to a first-stage belt conveyor and a transmission speed of the belt conveyor in real time (where the transmission speeds of the belt conveyors at different stages are the same). The simulator can generate first synchronous transmission simulation information of the material flow in real time according to the acquired material flow information and the transmission speed of the belt conveyor, so that a user can know the transmission condition of the material flow on the belt conveyor and the transmission position of the material flow in real time at a monitoring end.
Wherein, the data collector comprises a first material flow detection module.
Because the position of the whole material taking period of the material taking machine is movable relative to the first-stage belt conveyor, specifically, the material taking machine moves along with the material pile storage position to take materials, in order to ensure the stability of the material discharging detection of the material taking machine, a first material flow detection module for detecting the material flow information discharged by the material taking machine can be arranged at the material discharging opening of the material taking machine, so that the problem that the material flow detection module arranged on the belt conveyor cannot continue to detect after the material taking machine moves is avoided. Specifically, the first material flow detection module is configured to detect first material flow information, where the first material flow information may include time information when the head and the tail of a material flow segment formed after the material is discharged to the belt conveyor respectively pass through the first material flow detection module.
Under the condition that the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module is determined, simulation display can be carried out on the transmission condition of the material flow transmitted on the first-stage belt conveyor by combining the transmission speed of the belt conveyor, namely, the simulator generates first synchronous transmission simulation information of each material flow section in real time according to the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module and the transmission speed of the belt conveyor. The first synchronous transmission simulation information is the real-time transmission position of the simulation material flow on the first-stage belt conveyor.
The data collector can also include a second stream detection module.
In the actual transmission process of the material flow, the transmission position of each material flow section is inevitably deviated from the first synchronous transmission simulation information, in order to correct the deviation, the first synchronous transmission simulation information can be corrected through second material passing information, specifically, the second material passing information can be detected through a second material flow detection module arranged at the tail part of each level of belt conveyor, the second material passing information comprises the time information that the head end and the tail end of each material flow section actually pass through the second material flow detection module, namely, the first synchronous transmission simulation information is corrected according to the time information that the head end and the tail end of each material flow section actually pass through the second material flow detection module, so as to obtain the actual transmission position of each material flow section.
The system may also include a computational controller.
During the transmission process of the material flow, the starting and stopping of the belt conveyor can be controlled according to the actual transmission position of the material flow, specifically, the position of the head end and the tail end of the material flow transmitted to the current belt conveyor is determined, wherein the material flow detection module can be an ultrasonic distance sensor. Specifically, whether the head end and the tail end of the material flow are transmitted to the tail part of the current belt conveyor or not is determined (at a second material flow detection module), wherein under the condition that the head end of the material flow is transmitted to the tail part of the current belt conveyor, the calculation controller delays a first set time to start the next-stage belt conveyor, and the like, so that the belt conveyor is controlled to be started step by step according to the transmission position of the head end of the material flow. Similarly, the calculation controller delays the first set time to close the current belt conveyor when the material flow detection module detects that the end of the material flow is transmitted to the tail of the current belt conveyor, so as to control the belt conveyor to be closed step by step according to the transmission position of the end of the material flow. Wherein, the belt conveyors at each level are connected through the switching interface, and the switching interface provides reposition of redundant personnel and accent to the function, so that the material flow is transmitted to the switching interface and is shunted to secondary belt through the belt conveyor from the starting point, transmits the material flow to each destination (shipment machine) finally. The first set time is a pre-stored time, specifically, a transit time of the material flow from the inlet of the adapter to the outlet of the adapter.
And determining whether the head end and the tail end of the material flow are transmitted to the tail part of the belt conveyor, wherein after the belt conveyor is started, the head end of the material flow is judged to be transmitted to the tail part of the current belt conveyor under the condition that the material flow is detected for the first time by a material flow detection module at the tail part of the belt conveyor. And in the material flow transmission process, in the case that the belt scale metering value of the reclaimer is determined to be smaller than the set weight after the reclaimer is stopped and the material flow is not detected by the second material flow detection module at the tail part of the belt conveyor through a plurality of (for example, 3) detections, the material flow end is judged to be transmitted to the tail part of the current belt conveyor.
Regarding the pre-stored first setting time, specifically, the calculation controller may perform pre-calculation according to the following formula, and store the calculated first setting time locally:
wherein T represents the transit time of the flow from the inlet of the adapter to the outlet of the adapter, T1Indicating the moment, T, at which the head end of the material flow is transferred to the tail of the current belt conveyor2And the time when the head end of the material flow is transmitted to the head part of the next-stage belt conveyor is represented, L represents the transmission distance from the tail part of the current belt conveyor to the adapter, and v represents the transmission speed of the belt conveyor. The material flow detection module can also be arranged at the head of each level of belt conveyor and is used for determining whether the head end and the tail end of the material flow are transmitted to the head of the current belt conveyor.
After the secondary belt conveyor is started, the material falls onto the secondary belt conveyor (for example, the secondary belt conveyor) from the blanking port of the adapter, and the material flow section formed after blanking is changed along with the material falling from the adapter to the secondary belt conveyor.
The data collector can also include a third stream detection module.
For accurate monitoring of the material flow transmission, third material flow information may be detected by a third material flow detection module disposed at the head of each sub-belt, where the third material flow information includes: the head and tail ends of material flow sections formed after materials are blanked to the belt conveyor respectively pass through the time information of the third material flow detection module, under the condition that the head and tail ends of the material flow sections respectively pass through the time information of the third material flow detection module, simulation display can be carried out on the transmission condition of the material flow transmitted on the secondary belt conveyor by combining the transmission speed of the belt conveyor, namely, the simulator generates second synchronous transmission simulation information of the material flow sections in real time according to the time information that the head and tail ends of each material flow section respectively pass through the third material flow detection module and the transmission speed of the belt conveyor. The second synchronous transmission simulation information is the real-time transmission position of the simulation material flow on the secondary belt conveyor.
Similarly, the second synchronous transmission simulation information can be corrected according to the second material flow detection module arranged on the secondary belt conveyor and detected second material flow information. The whole transmission process of the material flow is subjected to analog tracking and analog information is synchronously transmitted for correction by the tracking method.
In the case that it is determined that the head end of the material flow is transmitted to the tail of the last-stage belt conveyor, the start of the ship loader is delayed by a second set time, which can be calculated in advance by the following formula:
the calculation can calculate the second set time t in advance through the following formula, and store the calculated second set time to the local:
wherein l represents the transmission distance between the tail of the last-stage belt conveyor and the ship loader, v represents the transmission speed of the belt conveyor, and t represents the transmission speed of the ship loadersRepresenting the time required for the start-up of the loader.
According to the second preset time, the calculation control device can also delay the second set time to start the ship loader under the condition that the head end of the material flow is determined to be transmitted to the tail part of the last-stage belt conveyor, so that seamless starting connection of the belt conveyor and the ship loader is realized, and resource waste is avoided.
Device embodiment
Fig. 6 shows a schematic diagram of a synchronous transmission simulation based on the method for tracking and controlling material flow on a belt conveyor, as shown in fig. 6, after a reclaimer 1 is started, material is taken from a pile and is discharged to a first-stage belt conveyor 2 through a belt scale of the reclaimer and a discharge port of the reclaimer, the first-stage belt conveyor is started (according to the required starting time of the belt conveyor, the first-stage belt conveyor is started in advance), the material flow is discharged to the first-stage belt conveyor from the discharge port of the reclaimer 1 and forms material flow sections, a first material flow detection module 3 (ultrasonic distance sensor) arranged at the discharge port of the reclaimer 1 detects first material flow information, namely time information that the head end and the tail end of each material flow section pass through the first material flow detection module 3, a data collector can collect the transmission speed of the belt conveyor, and the simulator generates the material flow in real time according to the time information that the head end and the tail end of each material flow section pass through the first material flow detection module 3 and the transmission speed of the belt conveyor The first synchronous transmission of analog information. The second material flow detection module 4 (ultrasonic distance sensor) detects the time information that the head end and the tail end of each material flow section actually pass through the second material flow detection module to obtain second material passing information, and the simulator corrects the first synchronous transmission simulation information according to the second material passing information to obtain the actual transmission position of each material flow section. When the head end of the material flow is confirmed to pass through the second material flow detection module 4 arranged at the tail part of the first-stage belt conveyor 2, the second material flow detection module 4 detects the material flow for the first time, namely, the head end of the material flow is judged to be transmitted to a detection point corresponding to the second material flow detection module 4, and under the condition that the head end of the material flow is confirmed to be transmitted to the tail part of the first-stage belt conveyor 2, the calculation controller controls the second-stage belt conveyor to be started after 5s of delay, wherein the delayed starting time 5s is the pre-stored time required for transmitting the material flow from the second material flow detection module 4 at the tail part of the belt conveyor to the outlet of the switching port 6.
After the delayed starting time is 5s, the second-stage belt conveyor 7 is started and starts to convey materials, the third material flow detection module 5 (ultrasonic distance sensor) detects the time information that the head end and the tail end of each material flow section actually pass through the third material flow detection module to obtain third material passing information, and the simulator generates second synchronous transmission simulation information of the material flows in real time according to the third material passing information and the belt conveyor transmission speed. And a second material flow detection module 4 arranged at the tail part of the second-stage belt conveyor detects the time information that the head and tail ends of each material flow section actually pass through the second material flow detection module to obtain second material passing information, and the second material passing information of the simulator corrects the second synchronous transmission simulation information.
The material loading head end position tracking of each level of belt conveyor and the belt conveyor start control mode step by step are as above, until the second material flow detection module 4 arranged at the tail part of the last level belt conveyor determines that the material flow head end is transmitted to the second material flow detection module 4 at the tail part of the last level belt conveyor, the calculation controller delays 13s to start the ship loader 8, wherein the time for delaying to start the ship loader 8 is the pre-stored ship loader safety trigger starting time t, and the ship loader safety trigger starting time t is pre-calculated and stored to the local by the following formula:
wherein l represents the transmission distance between the tail of the last-stage belt conveyor and the ship loader 8, v represents the transmission speed of the belt conveyor, and t represents the transmission speed of the ship loadersRepresenting the time required for the start-up of the loader.
In the transmission process of the belt conveyor, the second material flow detection module 4 determines the working state of the material taking machine 1 and the detection result of the belt weigher of the material taking machine 1 under the condition that the material flow is detected through 3 times of detection, specifically, when the detection value of the belt weigher of the material taking machine is smaller than the set weight after the material taking machine 1 stops and the second material flow detection module 4 detects the material flow through 3 times of detection, the tail end of the material flow is judged to be transmitted to the second material flow detection module 4 at the tail part of the first-stage belt conveyor, and the calculation controller controls the first-stage belt conveyor to be closed after 5s of delay. The detection of the first material flow detection module 3, the second material flow detection module 4 and the third material flow detection module 5 triggers the period of one rotation of the belt conveyor roller, that is, a pulse signal is generated when one rotation of the belt conveyor roller is detected, and the first material flow detection module 3, the second material flow detection module 4 and the third material flow detection module 5 are controlled to complete one detection according to the pulse signal.
And the material loading end position tracking of each level of belt conveyor and the step-by-step closing control mode of the belt conveyor are as above until the calculation controller closes the last level of belt conveyor after delaying for 5s under the condition that the second material flow detection module 4 arranged at the tail part of the last level of belt conveyor determines that the material flow end is transmitted to the second material flow detection module 4 at the tail part of the last level of belt conveyor, so that the material flow is transmitted.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (13)
1. A method for tracking and controlling material flow on a belt conveyor, the method comprising:
the method comprises the steps of obtaining material flow information output to a belt conveyor by a material taking machine and the transmission speed of the belt conveyor, wherein the material flow information output to the belt conveyor by the material taking machine comprises the following steps:
acquiring first material flow information detected by a first material flow detection module, wherein the first material flow detection module is arranged at a blanking port of the reclaimer, and the first material flow information comprises time information when the head end and the tail end of a material flow section formed after a material is blanked to a belt conveyor respectively pass through the first material flow detection module; generating first synchronous transmission simulation information of the material flow in real time according to the material flow information and the transmission speed of the belt conveyor;
acquiring second material flow information detected by a second material flow detection module, wherein the second material flow detection module is arranged at the tail of each level of belt conveyor, and the second material flow information comprises time information when the head end and the tail end of each material flow section actually pass through the second material flow detection module;
according to the second material passing information, under the condition that the head end of the material flow is determined to be transmitted to the tail of the current belt conveyor, starting the next belt conveyor after delaying a first set time;
according to the second material passing information, under the condition that the tail end of the material flow is transmitted to the tail of the current belt conveyor, the current belt conveyor is closed after first set time is delayed, wherein the first set time is the time required for the prestored material flow to be transmitted from the tail of the current belt conveyor to the outlet of the switching port; and
the first set time is pre-calculated according to the following formula:
wherein T represents the time required for the material flow to be transmitted from the tail of the current belt conveyor to the outlet of the switching port, and T1Indicating the moment, T, at which the head end of the material flow is transferred to the tail of the current belt conveyor2Indicating the time at which the head end of the flow is transferred to the head of the next belt conveyor, and L indicating the time at which the head end of the flow is transferred to the head of the next belt conveyorAnd v represents the transmission speed of the belt conveyor.
2. The method of claim 1, wherein the generating first synchronous transmission simulation information of the material flow in real time according to the material flow information and the transmission speed of the belt conveyor comprises:
and generating first synchronous transmission simulation information of each material flow section in real time according to the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module and the transmission speed of the belt conveyor.
3. The method of claim 1, further comprising:
and correcting the first synchronous transmission simulation information according to the second material passing information.
4. The method of claim 1, further comprising:
acquiring third material passing information detected by a third material flow detection module, wherein the third material flow detection module is arranged at the head of a secondary belt conveyor, the secondary belt conveyor is other belt conveyors except a first-stage belt conveyor, and the third material passing information comprises: the time information that the head end and the tail end of a material flow section formed after the material is discharged to the belt conveyor respectively pass through the third material flow detection module is obtained;
generating second synchronous transmission simulation information of the material flow in real time according to third material passing information detected by the third material flow detection module;
and correcting the second synchronous transmission simulation information according to the second material passing information.
5. The method of claim 1, further comprising:
after the belt conveyor is started, under the condition that the material flow is detected at the tail part of the belt conveyor for the first time, judging that the head end of the material flow is transmitted to the tail part of the current belt conveyor; and
in the material flow transmission process, under the condition that the measured value of a belt scale of the reclaimer is smaller than the set weight after the reclaimer is stopped and the material flow is not detected at the tail part of the belt conveyor through a plurality of detections, the tail end of the material flow is judged to be transmitted to the tail part of the current belt conveyor.
6. The method of claim 1, further comprising:
pre-calculating a second set time according to the following formula, and starting the ship loader after delaying the second set time t under the condition that the head end of the material flow is transmitted to the tail part of the last stage belt conveyor:
wherein l represents the transmission distance between the tail of the last-stage belt conveyor and the ship loader, v represents the transmission speed of the belt conveyor, and t represents the transmission speed of the ship loadersRepresenting the time required for the start-up of the loader.
7. A system for tracking and controlling material flow on a belt, the system comprising:
data collection station for obtain the material stream information of reclaimer output to the belt feeder and the transmission speed of belt feeder, data collection station includes:
the first material flow detection module is used for acquiring first material flow information, the first material flow detection module is arranged at a blanking port of the reclaimer, and the first material flow information comprises time information when the head end and the tail end of a material flow section formed after the material is blanked to the belt conveyor respectively pass through the first material flow detection module;
the second material flow detection module is used for acquiring second material flow information, wherein the second material flow detection module is arranged at the tail of each level of belt conveyor, and the second material flow information comprises time information when the head end and the tail end of each material flow section actually pass through the second material flow detection module;
the simulator is used for generating first synchronous transmission simulation information of the material flow in real time according to the material flow information and the transmission speed of the belt conveyor; and a calculation controller for performing the following operations:
according to the second material passing information, under the condition that the material flow detection module detects that the head end of the material flow is transmitted to the tail part of the current belt conveyor, starting the next belt conveyor after delaying a first set time;
according to the second material passing information, under the condition that the material flow detection module detects that the tail end of the material flow is transmitted to the tail of the current belt conveyor, delaying a first set time and then closing the current belt conveyor, wherein the first set time is the time required for the prestored material flow to be transmitted from the tail of the current belt conveyor to the outlet of the switching port; and
the first set time is pre-calculated according to the following formula:
wherein T represents the time required for the material flow to be transmitted from the tail of the current belt conveyor to the outlet of the switching port, and T1Indicating the moment, T, at which the head end of the material flow is transferred to the tail of the current belt conveyor2And L represents the transmission distance from the outlet of the adapter to the head of the next-stage belt conveyor, and v represents the transmission speed of the belt conveyor.
8. The system of claim 7, wherein the generating in real-time first synchronous transmission simulation information of the material flow according to the material flow information and the transmission speed of the belt conveyor comprises:
and the simulator generates first synchronous transmission simulation information of each material flow section in real time according to the time information that the head end and the tail end of the material flow section respectively pass through the first material flow detection module and the transmission speed of the belt conveyor.
9. The system of claim 7, wherein the simulator is further configured to correct the first synchronous transmission simulation information based on the second material passing information.
10. The system of claim 7, wherein the data collector further comprises: a third stream detection module;
the third material flow detection module is used for acquiring third material passing information, wherein the third material flow detection module is arranged at the head of a secondary belt conveyor, and the secondary belt conveyor is the other belt conveyors except the first-stage belt conveyor;
wherein the third material passing information comprises:
the time information that the head end and the tail end of a material flow section formed after the material is discharged to the belt conveyor respectively pass through the third material flow detection module is obtained;
the simulator is further configured to perform the following operations:
generating second synchronous transmission simulation information of the material flow according to the third material passing information detected by the third material flow detection module; and
and correcting the second synchronous transmission simulation information according to the second material passing information.
11. The system of claim 7, wherein the computing controller is configured to:
under the condition that the second material flow detection module detects the material flow for the first time after the belt conveyor is started, judging that the head end of the material flow is transmitted to the tail part of the current belt conveyor; and
and in the material flow transmission process, under the condition that the measured value of the belt scale of the reclaimer is smaller than the set weight after the reclaimer is stopped and the material flow is not detected by the second material flow detection module through several detections, judging that the tail end of the material flow is transmitted to the tail part of the current belt conveyor.
12. The system of claim 7, wherein the calculation controller is further configured to pre-calculate a second set time t according to the following equation and delay the start of the loader for the second set time t if it is determined that the head end of the flow is being transferred to the tail of the last belt conveyor:
wherein l represents the transmission distance between the tail of the last-stage belt conveyor and the ship loader, v represents the transmission speed of the belt conveyor, and t represents the transmission speed of the ship loadersRepresenting the time required for the start-up of the loader.
13. The system of claim 10, wherein the first, second, and third flow detection modules are ultrasonic distance sensors.
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| CN110421725B (en) * | 2019-08-22 | 2021-05-07 | 三一汽车制造有限公司 | Aggregate feeding system of mixing station, control method and mixing station |
| CN111302095B (en) * | 2020-01-20 | 2021-10-08 | 神华黄骅港务有限责任公司 | System, method and device for detecting coal-carrying quantity of ship loading line and storage medium |
| CN112849920B (en) * | 2021-01-06 | 2022-06-28 | 中冶华天工程技术有限公司 | Dynamic material flow real-time tracking method based on equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449138A (en) * | 2013-09-04 | 2013-12-18 | 中国神华能源股份有限公司 | Downstream coal flow time delay sequence start-up method for centralized control conveyors |
| CN103693410A (en) * | 2013-12-26 | 2014-04-02 | 中冶长天国际工程有限责任公司 | Control method and control device for material conveying system |
| CN103818704A (en) * | 2012-11-16 | 2014-05-28 | 宿州中矿三杰科技有限公司 | Energy-saving control device for belt conveyor units |
| CN204549283U (en) * | 2015-02-13 | 2015-08-12 | 那峙雄 | A kind of startup control system of belt |
| CN107585535A (en) * | 2017-09-05 | 2018-01-16 | 华电重工股份有限公司 | A kind of Bulk material method and system |
-
2019
- 2019-06-13 CN CN201910512749.7A patent/CN110104408B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818704A (en) * | 2012-11-16 | 2014-05-28 | 宿州中矿三杰科技有限公司 | Energy-saving control device for belt conveyor units |
| CN103449138A (en) * | 2013-09-04 | 2013-12-18 | 中国神华能源股份有限公司 | Downstream coal flow time delay sequence start-up method for centralized control conveyors |
| CN103693410A (en) * | 2013-12-26 | 2014-04-02 | 中冶长天国际工程有限责任公司 | Control method and control device for material conveying system |
| CN204549283U (en) * | 2015-02-13 | 2015-08-12 | 那峙雄 | A kind of startup control system of belt |
| CN107585535A (en) * | 2017-09-05 | 2018-01-16 | 华电重工股份有限公司 | A kind of Bulk material method and system |
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