CN115303756A - Belt conveyor system and method for controlling starting and stopping of belt conveyor - Google Patents
Belt conveyor system and method for controlling starting and stopping of belt conveyor Download PDFInfo
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- CN115303756A CN115303756A CN202211108939.0A CN202211108939A CN115303756A CN 115303756 A CN115303756 A CN 115303756A CN 202211108939 A CN202211108939 A CN 202211108939A CN 115303756 A CN115303756 A CN 115303756A
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- 238000000034 method Methods 0.000 title claims abstract description 81
- 238000010438 heat treatment Methods 0.000 claims description 57
- 238000001816 cooling Methods 0.000 claims description 46
- 238000004891 communication Methods 0.000 claims description 19
- 239000000126 substance Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000003213 activating effect Effects 0.000 description 5
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- 238000012360 testing method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
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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
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
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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
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/22—Arrangements or mountings of driving motors
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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
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
- B65G23/26—Applications of clutches or brakes
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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
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/24—Gearing between driving motor and belt- or chain-engaging elements
- B65G23/30—Variable-speed gearing
Abstract
The invention provides a belt conveyor system and a method for controlling starting and stopping of the belt conveyor. The starting control method of the belt conveyor can output a starting instruction of a frequency converter after receiving the starting instruction of the belt conveyor, start the frequency converter, and control a brake to start according to current output by the frequency converter, so that all devices of the belt conveyor are controlled to start according to a preset sequence. The method for controlling the halt of the belt conveyor can output a frequency converter halt instruction after receiving the halt instruction of the belt conveyor, output a brake halt instruction to a brake after controlling the frequency converter to stop outputting current, and control the brake to stop working so as to halt all equipment of the belt conveyor according to a preset sequence. According to the method and the device, after the starting instruction or the stopping instruction of the belt conveyor is received, all equipment in the belt conveyor can be controlled to start or stop according to the preset sequence through the control system of the belt conveyor without the operation of a user, and the simple sequence control of the belt conveyor is realized.
Description
Technical Field
The invention relates to the field of control, in particular to a belt conveyor system and a method for controlling starting and stopping of a belt conveyor.
Background
The belt conveyor is widely applied to mines, tunnels, electric fields, wharfs and the like as a main bulk material conveying device, and has strong conveying capacity and long conveying distance.
The existing belt conveyor comprises a plurality of devices such as a frequency converter and a brake, and after each condition needs to be artificially judged during control, a control system sends a control instruction according to the corresponding condition to control the running state of each device, so that the control of each device in the belt conveyor is very complex.
Therefore, how to realize simple control of the belt conveyor becomes a problem to be solved in the field.
Disclosure of Invention
In view of the above, the present invention provides a belt conveyor system and a method for controlling start and stop of a belt conveyor, so as to realize simple control of the belt conveyor.
In order to achieve the purpose, the invention provides the following technical scheme:
a starting control method of a belt conveyor is applied to a belt conveyor control system, and the belt conveyor control system is respectively in communication connection with a frequency converter and a brake in the belt conveyor; the method comprises the following steps:
the belt conveyor control system receives a belt conveyor starting instruction;
the belt conveyor control system outputs a frequency converter starting instruction to the frequency converter, and the frequency converter is started to enable the frequency converter to output current;
the belt conveyor control system obtains a current value output by the frequency converter;
the belt conveyor control system judges whether the current value is larger than a preset current value or not;
and if the current value is larger than the preset current value, the belt conveyor control system outputs a brake starting instruction to the brake so as to start the belt conveyor.
Optionally, after the belt conveyor control system determines whether the current value is greater than a preset current value, the method further includes:
and if the current value is not larger than the preset current value, returning to the step of executing the belt conveyor control system to obtain the current value output by the frequency converter.
Optionally, the belt conveyor control system is in communication connection with an early warning device in the belt conveyor; after the belt conveyor control system receives a belt conveyor start command and before the belt conveyor control system outputs a frequency converter start command to the frequency converter, the method further comprises:
the belt conveyor control system judges whether the shutdown time of the belt conveyor is less than a first preset time;
if the shutdown duration is less than the first preset duration, the belt conveyor control system outputs an early warning device starting instruction to the early warning device, and the early warning device is started to perform early warning;
and after the belt conveyor control system controls the early warning device to early warn for a second preset time, the belt conveyor control system outputs an early warning device stopping instruction to the early warning device to control the early warning device to stop early warning.
Optionally, the belt conveyor control system is in communication connection with a motor heating device in the belt conveyor; after the belt conveyor control system judges whether the shutdown time of the belt conveyor is less than a first preset time, before the belt conveyor control system outputs an early-warning device starting instruction to the early-warning device, the method further comprises the following steps:
if the shutdown time is not less than the first preset time, the belt conveyor control system outputs a motor heating equipment starting instruction to the motor heating equipment to control the motor heating equipment to heat;
and after the belt conveyor control system controls the motor heating equipment to heat for a third preset time, the belt conveyor control system outputs a motor heating equipment stop instruction to the motor heating equipment to control the motor heating equipment to stop heating.
Optionally, the belt conveyor control system is in communication connection with a motor cooling device in the belt conveyor; after the early warning device stops early warning and before the belt conveyor control system outputs a frequency converter starting instruction to the frequency converter, the method further comprises the following steps:
and the belt conveyor control system outputs a motor cooling equipment starting instruction to the motor cooling equipment to control the motor cooling equipment to cool.
Optionally, the method further includes:
the belt conveyor control system displays an indication image of each device in the belt conveyor on a display screen, wherein the indication image is used for representing the device in the belt conveyor; the belt conveyor control system adjusts the display state of at least one indication image displayed in the display screen based on each starting instruction as follows: a start-up state; the belt conveyor control system displays the equipment parameters of at least one piece of equipment in the belt conveyor in the corresponding area of the corresponding indication image in the display screen; the belt conveyor control system records the starting time of the belt conveyor and displays the starting time in the display screen;
and/or the presence of a gas in the gas,
the belt conveyor control system displays a current value output by the frequency converter in an area corresponding to the frequency converter in a display screen, determines whether the frequency converter fails or not based on the current value, and displays failure shutdown in the area corresponding to the frequency converter if the frequency converter fails;
and/or the presence of a gas in the gas,
and the belt conveyor control system monitors the temperature of a motor of the belt conveyor.
A shutdown control method of a belt conveyor is applied to a belt conveyor control system, wherein the belt conveyor control system is respectively in communication connection with a frequency converter and a brake in the belt conveyor; the method comprises the following steps:
the belt conveyor control system receives a belt conveyor stop instruction;
the belt conveyor control system outputs a frequency converter stopping instruction to the frequency converter to control the frequency converter to stop outputting current;
the belt conveyor control system judges whether the frequency converter outputs the current or not;
and if the frequency converter does not output the current, the belt conveyor control system outputs a brake stop instruction to the brake so as to stop the belt conveyor.
Optionally, the belt conveyor control system is in communication connection with a motor cooling device in the belt conveyor; after the belt conveyor control system outputs a brake stop command to the brake to stop the belt conveyor, the method further includes:
and the belt conveyor control system outputs a motor cooling equipment stop instruction to the motor cooling equipment so as to stop the motor cooling equipment.
Optionally, the method further includes:
the belt conveyor control system displays indication images of all equipment in the belt conveyor on a display screen, and the indication images are used for representing the equipment in the belt conveyor; the belt conveyor control system adjusts the display state of at least one indication image displayed in the display screen based on each stop instruction as follows: a stopped state; the belt conveyor control system displays the equipment parameters of at least one piece of equipment in the belt conveyor in the corresponding area of the corresponding indication image in the display screen; the belt conveyor control system records the shutdown time of the belt conveyor and displays the shutdown time in the display screen;
and/or the presence of a gas in the gas,
the belt conveyor control system displays a current value output by the frequency converter in an area corresponding to the frequency converter in a display screen, determines whether the frequency converter fails or not based on the current value, and displays failure shutdown in the area corresponding to the frequency converter if the frequency converter fails;
and/or the presence of a gas in the gas,
and the belt conveyor control system monitors the temperature of a motor of the belt conveyor.
A belt conveyor system comprising: a belt conveyor and a belt conveyor control system; wherein the content of the first and second substances,
the belt conveyor control system is used for executing any one of the belt conveyor starting control methods and/or executing any one of the belt conveyor stopping control methods.
The invention provides a belt conveyor system and a method for controlling starting and stopping of the belt conveyor. The starting control method of the belt conveyor can output a starting instruction of a frequency converter after receiving the starting instruction of the belt conveyor, start the frequency converter, and control a brake to start according to current output by the frequency converter, so that all devices of the belt conveyor are controlled to start according to a preset sequence. The method for controlling the halt of the belt conveyor can output a frequency converter halt instruction after receiving the halt instruction of the belt conveyor, output a brake halt instruction to a brake after controlling the frequency converter to stop outputting current, and control the brake to stop working so as to halt all equipment of the belt conveyor according to a preset sequence. Therefore, after receiving a starting instruction or a stopping instruction of the belt conveyor, the control system of the belt conveyor can control all the devices in the belt conveyor to start or stop according to a preset sequence without operation of a user, and simple sequence control of the belt conveyor is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a belt conveyor according to an embodiment of the present invention;
fig. 2 is a flowchart of a belt conveyor start control method according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a belt conveyor according to an embodiment of the present invention;
fig. 4 is another flowchart of a belt conveyor start control method according to an embodiment of the present invention;
fig. 5 is another schematic structural diagram of a belt conveyor provided by the embodiment of the invention;
fig. 6 is another schematic structural diagram of a belt conveyor according to an embodiment of the present invention;
fig. 7 is another flowchart of a belt conveyor start control method according to an embodiment of the present invention;
fig. 8 is a schematic view of a display screen of a belt conveyor according to an embodiment of the present invention;
fig. 9 is a flowchart of a stop control method for a belt conveyor according to an embodiment of the present invention;
fig. 10 is another flowchart of a stop control method for a belt conveyor according to an embodiment of the present invention;
fig. 11 is another schematic structural diagram of a display screen of the belt conveyor according to the embodiment of the invention;
fig. 12 is a schematic structural diagram of a belt conveyor control system according to an embodiment of the present invention;
fig. 13 is a schematic structural diagram of a belt conveyor control system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The invention provides a starting control method of a belt conveyor, which is applied to a control system of the belt conveyor to realize simple control of the belt conveyor. As shown in fig. 1, the belt conveyor control system 100 may be communicatively coupled to a frequency converter 201 and a brake 202, respectively, in the belt conveyor 200. The belt conveyor control system 100 may be a local side device or a network side device.
The frequency converter 201 is a speed-adjustable driving system, and changes the frequency and amplitude of the working voltage of the alternating current motor by applying a frequency conversion driving technology, so as to realize smooth control of the speed and torque of the alternating current motor and output current; the frequency converter 201 supplies current to the motor of the belt conveyor 200, and then drives the conveyor belt of the belt conveyor 200 to rotate, so that the belt conveyor 200 is started.
The brake 202 is a device having a function of decelerating, stopping, or maintaining a stopped state of a moving member, and is classified into a normally closed brake and a normally open brake, and optionally, the brake 202 in this embodiment is a normally closed brake, the brake 202 is in a brake-tight state when not activated, and the brake 202 is released to move the belt conveyor 200 when activated.
As shown in fig. 2, the method for controlling the start of the belt conveyor specifically includes:
s101, the belt conveyor control system 100 receives a belt conveyor start command.
The belt conveyor control system 100 receives a belt conveyor start instruction sent by a user through a sending device, the belt conveyor control system 100 checks whether the received belt conveyor start instruction sent by the user is correct, and if the belt conveyor start instruction sent by the user is correct, the belt conveyor control system 100 executes step S102.
S102, the belt conveyor control system 100 outputs a frequency converter start instruction to the frequency converter 201, and starts the frequency converter 201 so that the frequency converter 201 outputs a current.
In practical applications, the frequency converter starting instruction of step S102 may include a starting message, and the frequency converter 201 may be started in the normal mode according to the starting message.
In another embodiment, the frequency converter start command of step S102 may include a start current to control the frequency converter 201 to start and output the start current. In particular, the weight of articles transported by the belt conveyor 200 may be different, and thus the present application may provide different driving forces for articles of different weights. The driving force output by the motor can be controlled by controlling the current output by the frequency converter 201. In practical application, the belt conveyor control system 100 may be configured with a load cell on the belt conveyor 200, collect the weight of the article transported by the belt conveyor 200 through the load cell, determine the current value output by the frequency converter 201 according to the weight of the article, and send a start instruction of the frequency converter 201 including the current value to the frequency converter 201, so as to control the frequency converter 201 to output a corresponding current value to drive the motor to output a corresponding driving force.
The current value output by the frequency converter 201 is determined according to the weight of the article transported by the belt conveyor 200, and may specifically be a corresponding frequency converter starting current value under a corresponding weight obtained through a frequency converter starting current value correspondence table.
The correspondence table can be provided according to actual tests or manufacturers, and the table 1 is the correspondence table for the starting current value of the frequency converter provided by the application.
TABLE 1 Start Current value correspondence table for frequency converter
| Weight (D) | Current value |
| Less than 500kg | 4 kilowatt |
| Not less than |
10 kilowatt |
And S103, the belt conveyor control system 100 obtains a current value output by the frequency converter 201.
In practical application, a current sensor can be arranged on the belt conveyor 200, so that the current value output by the frequency converter 201 is acquired through the current sensor; or the frequency converter 201 directly outputs the output current value to the belt conveyor control system 100, so that the belt conveyor control system 100 can acquire the current value output by the frequency converter 201.
S104, the belt conveyor control system 100 determines whether the current value is greater than a preset current value, and if the current value is greater than the preset current value, step S105 is executed. If the current value is not greater than the preset current value, the process returns to step S103.
The preset current value specifically means: the belt conveyor 200 can achieve a current value for safe start-up; the current value for the safe start of the belt conveyor 200 can be obtained according to actual tests or provided by manufacturers, and is not specifically limited herein, and is within the protection scope of the present application depending on the actual application environment.
In practical applications, when the current value is greater than the preset current value, it indicates that the belt conveyor 200 can be safely started, and when the current value is not greater than the preset current value, it indicates that the current output by the frequency converter 201 cannot ensure the safe start of the belt conveyor 200, and the belt conveyor 200 may possibly run backwards, so that the belt conveyor 200 cannot normally operate, so that the step S103 is returned to, and the step of obtaining the current value output by the frequency converter 201 by the belt conveyor control system 100 is executed, thereby avoiding the situation that the belt conveyor 200 runs backwards due to the fact that the current value output by the frequency converter 201 is too small.
S105, the belt conveyor control system 100 outputs a brake activation command to the brake 202 to activate the belt conveyor 200.
In practical applications, the brake activation command of step S105 may include an activation message, and the brake 202 may be released according to the activation message.
In practical applications, the brake 202 may be disposed in the motor, and when the belt conveyor control system 100 outputs a brake start command to the brake 202, the belt conveyor control system 100 outputs the brake start command to the brake 202, and controls the brake 202 to release, so as to start the belt conveyor 200 smoothly.
According to the belt conveyor starting control method provided by the embodiment, after receiving a belt conveyor starting instruction, the belt conveyor control system 100 outputs a frequency converter starting instruction, starts the frequency converter 201, and controls the brake 202 to start according to the current output by the frequency converter 201, so that starting control of the belt conveyor 200 is completed, and after receiving the belt conveyor starting instruction, the belt conveyor control system 100 can start each device in the belt conveyor 200 according to a preset sequence through the belt conveyor control system 100 without user operation, so that simple sequence control of the belt conveyor 200 is realized.
On the basis of the above-described embodiment, it is preferable that the belt conveyor control system 100 be connected in communication with the early warning device 203 in the belt conveyor 200, as shown in fig. 3.
The early warning function can be realized by the early warning device 203 through sound and light or sound, and the sound and light early warning device can be adopted in the embodiment, so that the sound and light early warning device is started under the preset condition, and users around the belt conveyor 200 can be early warned through the sound and light early warning device.
As shown in fig. 4, after step S101 and before step S102, the method for controlling the start of the belt conveyor further includes:
s201, the belt conveyor control system 100 determines whether the stop time period of the belt conveyor 200 is less than a first preset time period.
The first preset duration specifically means: the length of time that the motor of belt conveyor 200 is shut down; the first preset duration may be provided according to actual tests or manufacturers, and is not specifically limited herein, and may be determined according to the actual application environment, and is within the protection scope of the present application.
In practical application, after the belt conveyor 200 stops, the belt conveyor control system 100 starts the timing device to time, and after the belt conveyor control system 100 receives a belt conveyor start instruction, the timing device is controlled to stop timing, the belt conveyor control system 100 receives timing information output by the timing device, determines the stop duration of the belt conveyor 200, and determines whether the stop duration of the belt conveyor 200 is less than a first preset duration.
In practical application, when the stop duration of the belt conveyor 200 is less than the first preset duration, it indicates that the current temperature of the motor is within a temperature range suitable for starting the motor, and the motor can be directly started; when the shutdown duration of the belt conveyor 200 is longer than the first preset duration, it means that the motor is not directly started until the motor can be started by heating the motor when the current temperature of the motor is too low and is smaller than the temperature range suitable for starting the motor.
And S202, if the shutdown time is shorter than a first preset time, the belt conveyor control system 100 outputs an early-warning-device starting instruction to the early warning device 203, and the early warning device 203 is started to perform early warning.
In practical applications, the alarm start instruction of step S202 may include a start message, and the alarm 203 may start according to the start message.
In another embodiment, the alarm activation instruction of step S202 may include activating an acoustic alarm and/or activating a light alarm to control the alarm 203 to perform the acoustic alarm and/or the light alarm.
And S203, after the belt conveyor control system 100 controls the early warning device 203 to early warn a second preset time, the belt conveyor control system 100 outputs an early warning device stopping instruction to the early warning device 203, and controls the early warning device 203 to stop early warning.
In practical applications, the alarm stop instruction of step S202 may include a stop message, and the alarm 203 may stop the early warning according to the stop message.
In another embodiment, the alarm stop instruction of step S202 may include stopping the acoustic alarm and/or stopping the light alarm to control the alarm 203 to stop the acoustic alarm and/or the light alarm.
In this embodiment, the user around the belt conveyor 200 is warned that the belt conveyor 200 will start by using the early warning device 203, and all people are away from the belt conveyor 200, so as to realize safe start of the belt conveyor 200, and when the belt conveyor control system 100 controls the early warning device 203 to warn for a second preset time, the belt conveyor control system 100 outputs an early warning device stop instruction to the early warning device 203, and controls the early warning device 203 to stop early warning.
On the basis of the above-described embodiment, it is preferable that the belt conveyor control system 100 be communicably connected to the motor heating apparatus 204 in the belt conveyor 200, as shown in fig. 5.
The motor heating device 204 is disposed near the motor of the belt conveyor 200, and when the motor start temperature of the belt conveyor 200 is too low to start, the belt conveyor 200 can heat the motor by the motor heating device 204, so that the motor of the belt conveyor 200 reaches a temperature suitable for starting.
As shown in fig. 4, after step S201 and before step S202, the method for controlling the start of the belt conveyor further includes:
s301, if the shutdown time is not less than the first preset time, the belt conveyor control system 100 outputs a motor heating device starting instruction to the motor heating device 204, and controls the motor heating device 204 to heat.
If the shutdown time is not less than the first preset time, it indicates that the temperature of the motor is too low to be suitable for starting, and at this time, the belt conveyor control system 100 needs to output a motor heating device starting instruction to the motor heating device 204, and control the motor heating device 204 to heat the motor, so that the motor reaches a temperature suitable for starting.
In practical application, the motor heating device 204 is arranged on the motor, and the motor of the belt conveyor 200 is heated by the motor heating device 204 so as to reach a temperature suitable for starting.
And S302, after the belt conveyor control system 100 controls the motor heating device 204 to heat for a third preset time, the belt conveyor control system 100 outputs a motor heating device stop instruction to the motor heating device 204, and controls the motor heating device 204 to stop heating.
The third preset duration specifically means: the heating duration of the motor heating device 204; the third preset time period may be determined according to actual tests or provided by manufacturers, and is not specifically limited herein, and is determined according to actual application environments, and is within the scope of the present application.
In practical application, when the belt conveyor control system 100 controls the motor heating device 204 to heat, the belt conveyor control system 100 monitors the temperature of the motor or the heating time of the motor heating device 204, and when the temperature of the motor reaches a preset temperature suitable for starting the motor or the heating time of the motor heating device 204 is preset, the belt conveyor control system 100 controls the motor heating device 204 to stop heating.
According to the belt conveyor starting control method provided by the embodiment, the motor is heated before the frequency converter starting instruction is issued, so that the motor can reach the temperature suitable for starting, the condition that the motor cannot be started due to too low temperature is avoided, and the effect of protecting the motor is achieved.
On the basis of the above embodiment, preferably, as shown in fig. 6, the belt conveyor control system 100 may be connected in communication with the motor cooling device 205 in the belt conveyor 200.
As shown in fig. 7, after step S203 and before step S102, the method further includes:
and S401, outputting a motor cooling device starting instruction to the motor cooling device 205 by the belt conveyor control system 100, and controlling the motor cooling device 205 to cool.
In practical applications, the motor temperature reducing device activating instruction in step S401 may include an activating message, and the motor temperature reducing device 205 may be activated according to the activating message.
In another embodiment, the motor cooling device start instruction in step S401 may be to start a fan or start an air cooler, so as to start the motor cooling device 205 to cool the motor, thereby preventing the problem of a fault caused by an excessively high temperature during the operation of the motor, and achieving the purpose of protecting the motor.
Alternatively, in other embodiments, the belt conveyor control system 100 of the present application may monitor the motor temperature of the belt conveyor.
Specifically, the present application monitors the motor temperature of the belt conveyor 200 through the belt conveyor control system 100, and controls the operation state of the motor temperature reducing device 205 in fig. 6 and/or the motor heating device 204 in fig. 6 according to the monitored motor temperature, so as to maintain the motor temperature of the belt conveyor 200 within a proper temperature range.
Optionally, as shown in fig. 8, in other embodiments, the belt conveyor control system 100 may have a display screen 300, or the belt conveyor control system 100 and the display screen 300 are connected in communication, and the above-mentioned belt conveyor start-up control method further includes:
the belt conveyor control system 100 displays an indication image of each device in the belt conveyor 200 on the display screen 300, the indication image being used to characterize the device in the belt conveyor 200; the belt conveyor control system 100 adjusts the display state of at least one indication image displayed in the display screen 300 based on each start instruction to: a start-up state; the belt conveyor control system 100 displays the device parameter of at least one device in the belt conveyor 200 in the corresponding area of the corresponding indication image in the display screen 300; the belt conveyor control system 100 records the start-up time period of the belt conveyor 200 and displays the start-up time period in the display screen 300.
When the current value output by the frequency converter 201 driven by the belt conveyor control system 100 exceeds the preset current value range, or the current is not output by the brake 202 for a preset time length, the belt conveyor control system 100 is indicated to be in fault shutdown, and the belt conveyor control system 100 can display the fault shutdown through the display screen.
In practical application, as shown in fig. 8, the display screen 300 can display the start-up time, the temperature, whether the belt conveyor is in a fault shutdown state, the frequency converter unit 10, the brake unit 20, the early warning unit 30, the motor heating device unit 40 and the motor cooling device unit 50, wherein the early warning unit 30 can be an indication icon of the early warning device 203, and the early warning unit 30 can display the early warning time and the early warning state of the early warning device 203; the frequency converter unit 10 may be an indication icon of the frequency converter 201, and the frequency converter unit 10 may display the current value and the state of the frequency converter 201; the motor heating apparatus unit 40 may be an indication icon of the motor heating apparatus 204, and the motor heating apparatus unit 40 may display the heating time period and the state of the motor heating apparatus 204; the brake unit 20 may be an indication icon of the brake 202, and the brake unit 20 may display the state of the brake 202; the motor cooling device unit 50 may be an indication icon of the motor cooling device 205, and the motor cooling device unit 50 may display the state of the motor cooling device 205, which is not limited in practical application.
According to the belt conveyor start control method provided by this embodiment, by using the display screen 300, a user can more intuitively observe the operation state of each device in the belt conveyor 200 through the display screen 300, so that the user can conveniently control the belt conveyor 200.
Alternatively, as shown in fig. 8, in other embodiments, the belt conveyor control system 100 may have a display screen 300 or be in communication with the display screen 300, and the belt conveyor start control method further includes:
the belt conveyor control system 100 displays the current value output by the frequency converter 201 in the area corresponding to the frequency converter 201 in the display screen 300, the belt conveyor control system 100 determines whether the frequency converter 201 has a fault or not based on the current value, and if the frequency converter 201 has a fault, the belt conveyor control system 100 displays the fault stop in the corresponding area of the frequency converter 201.
In practical applications, the belt conveyor control system 100 displays the current value output by the frequency converter 201 in the area corresponding to the frequency converter 201 in the display screen 300, and indicates that the frequency converter 201 of the belt conveyor control system 100 is out of order when the current value of the belt conveyor 200 exceeds a preset range, for example, indicates that the frequency converter 201 of the belt conveyor control system 100 is out of order when the current value of the belt conveyor 200 is greater than 2 times of a rated current value, and the belt conveyor control system 100 displays a failure stop in the area corresponding to the frequency converter 201 in the display screen 300, but the invention is not limited thereto in practical applications.
According to the belt conveyor start control method provided by the embodiment, the display screen 300 is adopted, so that a user can observe the current value in the belt conveyor 200 through the display screen 300 more intuitively, and the user can control the belt conveyor 200 conveniently.
The invention provides a belt conveyor stop control method which is applied to a belt conveyor control system 100 to realize simple control of a belt conveyor 200. As shown in fig. 1, the belt conveyor control system 100 may be communicatively connected with a frequency converter 201 and a brake 202 in the belt conveyor 200, respectively; the belt conveyor control system 100 may be a local side device or a network side device.
The frequency converter 201 is a speed-adjustable driving system, and changes the frequency and amplitude of the working voltage of the alternating current motor by applying a frequency conversion driving technology, so as to realize smooth control of the speed and torque of the alternating current motor and output current; the frequency converter 201 supplies current to the motor of the belt conveyor 200 to drive the conveyor belt of the belt conveyor 200 to rotate, so that the belt conveyor 200 is started and stopped.
The brake 202 is a device having functions of decelerating, stopping, or maintaining a stopped state of a moving part, and is classified into a normally closed brake and a normally open brake, and optionally, the brake 202 in this embodiment is a normally closed brake, and when activated, the brake 202 is released, and when not activated, the brake 202 is in a tightly closed state, so as to stop the movement of the belt conveyor 200.
As shown in fig. 9, the method for controlling the stop of the belt conveyor specifically includes:
s601, the belt conveyor control system 100 receives a belt conveyor stop command.
The belt conveyor control system 100 receives a belt conveyor stop instruction sent by a user through the sending device, the belt conveyor control system 100 determines whether the received belt conveyor stop instruction sent by the user is correct, and if the belt conveyor stop instruction sent by the user is correct, the belt conveyor control system 100 executes step S602.
S602, the belt conveyor control system 100 outputs a frequency converter stop instruction to the frequency converter 201, and controls the frequency converter 201 to stop outputting current.
In practical application, a current sensor can be arranged on the belt conveyor 200, so that the current value output by the frequency converter 201 is acquired through the current sensor; or the frequency converter 201 directly outputs the output current value to the belt conveyor control system 100, so that the belt conveyor control system 100 can acquire the current value output by the frequency converter 201.
The belt conveyor control system 100 outputs a frequency converter stop instruction to the frequency converter 201, so that the frequency converter 201 stops outputting current, and when the frequency converter 201 does not output current, the belt conveyor 200 is stopped.
S603, the belt conveyor control system 100 determines whether the frequency converter 201 outputs a current.
The belt conveyor control system 100 may obtain the current value output by the frequency converter 201 through the current sensor, or directly receive the current value output by the frequency converter 201, and determine the received current value.
If the inverter 201 still outputs current, the process continues to step S603.
S604, if the inverter 201 does not output a current, the belt conveyor control system 100 outputs a brake stop command to the brake 202, so as to stop the belt conveyor 200.
If the frequency converter 201 does not output current, the belt conveyor 200 stops, and the belt conveyor control system 100 outputs a brake stop command to the brake 202, so that the brake 202 is in a brake-tight state, and the belt conveyor 200 is ensured not to slide backwards.
In the method for controlling the stop of the belt conveyor according to this embodiment, the belt conveyor 200 outputs a frequency converter stop instruction after receiving the belt conveyor stop instruction, outputs a brake stop instruction to the brake 202 after controlling the frequency converter 201 to stop outputting the current, and controls the brake 202 to stop operating, so as to stop the belt conveyor 200. It can be seen that, according to the present application, after receiving a start instruction or a stop instruction of the belt conveyor, the belt conveyor control system 100 can be controlled to stop each device in the belt conveyor 200 according to a preset sequence without user operation, so that simple sequence control of the belt conveyor 200 is achieved.
On the basis of the above embodiment, preferably, as shown in fig. 6, the belt conveyor control system 100 may be connected in communication with the motor cooling device 205 in the belt conveyor 200.
In the method for controlling the stop of the belt conveyor, as shown in fig. 10, after step S604, the method further includes:
s701, the belt conveyor control system 100 outputs a motor cooling device stop instruction to the motor cooling device 205, so that the motor cooling device 205 stops working.
After the belt conveyor 200 is stopped, the belt conveyor control system 100 outputs a motor cooling device stop instruction to the motor cooling device 205, and controls the motor cooling device 205 to stop working.
In practical application, when the motor cooling device 205 stops working, the belt conveyor control system 100 counts the stop time of the belt conveyor 200, and when the belt conveyor 200 is restarted, the count data is cleared.
Alternatively, as shown in fig. 11, in other embodiments, the belt conveyor control system 100 may have a display screen 300 or be connected to the display screen 300 in communication, and the belt conveyor stop control method further includes:
the belt conveyor control system 100 displays an indication image of each device in the belt conveyor 200 on the display screen 300, the indication image being used to characterize the device in the belt conveyor 200; the belt conveyor control system 100 adjusts the display state of at least one instruction image displayed in the display screen 300 based on each stop instruction to: a stopped state; the belt conveyor control system 100 displays the equipment parameters of at least one equipment in the belt conveyor 200 in the corresponding area of the corresponding indication image in the display screen 300; the belt conveyor control system 100 records the length of the downtime of the belt conveyor 200 and displays the length of the downtime in the display screen 300.
In practical applications, as shown in fig. 11, the display screen 300 can display the shutdown duration, the temperature, whether the belt conveyor is in a fault shutdown state, the frequency converter unit 10, the brake unit 20, the early warning unit 30, the motor heating equipment unit 40 and the motor cooling equipment unit 50, where the early warning unit 30 can be an indication icon of the early warning device 203, and the early warning unit 30 can display the early warning duration and the early warning state of the early warning device 203; the frequency converter unit 10 may be an indication icon of the frequency converter 201, and the frequency converter unit 10 may display the current value and the state of the frequency converter 201; the motor heating apparatus unit 40 may be an indication icon of the motor heating apparatus 204, and the motor heating apparatus unit 40 may display the heating time period and the state of the motor heating apparatus 204; the brake unit 20 may be an indication icon of the brake 202, and the brake unit 20 may display the state of the brake 202; the motor cooling device unit 50 may be an indication icon of the motor cooling device 205, and the motor cooling device unit 50 may display the state of the motor cooling device 205, which is not limited in this application.
According to the belt conveyor stop control method provided by this embodiment, by using the display screen 300, a user can more intuitively observe the operation state of each device in the belt conveyor 200 through the display screen 300, so that the user can conveniently control the belt conveyor 200.
Alternatively, as shown in fig. 11, in other embodiments, the belt conveyor control system 100 may have a display screen 300 or be connected to the display screen 300 in communication, and the belt conveyor stop control method further includes:
the belt conveyor control system 100 displays the current value output by the inverter 201 in the area corresponding to the inverter 201 in the display screen 300, the belt conveyor control system 100 determines whether the inverter 201 has a failure based on the current value, and if it is determined that the inverter 201 has a failure, the belt conveyor control system 100 displays a failed stop in the area corresponding to the inverter 201.
In practical applications, the belt conveyor control system 100 displays the current value output by the frequency converter 201 in the area corresponding to the frequency converter 201 in the display screen 300, and indicates that the frequency converter 201 of the belt conveyor control system 100 has a fault when the current value of the belt conveyor 200 exceeds the preset range, for example, indicates that the frequency converter 201 of the belt conveyor control system 100 has a fault when the current value of the belt conveyor 200 is greater than 2 times of the rated current value, and the belt conveyor control system 100 displays a fault stop in the area corresponding to the frequency converter 201 in the display screen 300, but the invention is not limited thereto in practical applications.
According to the stop control method for the belt conveyor provided by the embodiment, the display screen 300 is adopted, so that a user can observe the current value in the belt conveyor 200 through the display screen 300 more intuitively, and the user can control the belt conveyor 200 conveniently.
Another embodiment of the present invention also provides a belt conveyor system, as shown in fig. 12, including: belt conveyor control system 100 and belt conveyor 200 wherein,
the belt conveyor control system 100 is configured to execute the belt conveyor start-up control method according to any one of the embodiments described above, and/or execute the belt conveyor stop control method according to any one of the embodiments described above.
The belt conveyor system according to the present embodiment realizes simple control of the belt conveyor 200 by using the belt conveyor control system 100 and the belt conveyor 200.
Another embodiment of the present invention also provides a belt conveyor control system 100, as shown in fig. 13, including: the system comprises an equipment data input module 101, an equipment data output module 102, a digital equipment module 103, a sequence control module 104, a protection device module 105, a temperature fault module 106, a shutdown timing module 107, a back-slip prevention module 108 and an external data output module 109.
The equipment data input module 101 and the equipment data output module 102 are interfaces of the belt conveyor control system 100 and external equipment, and the equipment data input module 101 is used for receiving state data of each module; the device data output module 102 is configured to output a start instruction or a stop instruction of each module to the corresponding module.
The digitizing device module 103 is a digitizing device of external devices in the belt conveyor control system 100, each external device virtualizes a corresponding digital device in the belt conveyor control system 100 after passing through the digitizing device module 103 through the device data input module 101 and the device data output module 102, the operation data of each external device are synchronized in real time in the corresponding digital device, and the start and stop operations of the digital device are real-time operated on the external device, and the generated digitizing device also has calculation attributes, such as start timeout fault, stop timeout fault, fault shutdown output and other functions.
The sequential control module 104 includes sequential control start and sequential control stop functions, in the sequential control start, all digital devices associated with the whole machine are queued in the sequential control module 104 according to a start sequence, and the operation feedback of the previous device is used as the start control of the next device, so as to realize one-key start, for example: when the belt conveyor control system 100 determines that the current value output by the frequency converter 201 is greater than the preset current value, the belt conveyor control system 100 outputs a brake starting instruction to the brake 202 to start the brake 202; in the sequential control stop, all the digital devices associated with the complete machine are queued in the sequential control module 104 according to the stop sequence, the stop feedback of the previous device is used as the stop control of the next device, and the one-key stop is realized, for example: the belt conveyor control system 100 determines whether the inverter 201 outputs a current, and if the inverter 201 does not output a current, the belt conveyor control system 100 outputs a brake stop command to the brake 202 to stop the belt conveyor 200.
The protection device module 105 is configured to monitor states of the belt conveyor 200, such as a rope pulling state, a slipping state, a material blocking state, a material flow state, and a tearing state, and output a corresponding state to the belt conveyor control system 100.
The temperature fault module 106 is configured to monitor a temperature of a motor of the belt conveyor 200, and output the acquired motor temperature data to the belt conveyor control system 100.
The stop timing module 107 is configured to monitor the operation state of the belt conveyor 200 in real time, has a timing operation parameter and a timing reset parameter, and outputs timing data corresponding to the stop state and the start state of the belt conveyor 200, for example: the timing is started when the belt conveyor 200 is stopped, and the timing data is output until the belt conveyor 200 is started, and the timing data is cleared.
The back-slipping prevention module 108 is used for preventing the back slipping phenomenon of the belt conveyor 200 when the belt conveyor 200 is started or stopped due to the reasons of material loading, gradient and the like, and when the belt conveyor control system 100 is started, the frequency converter 201 is driven to output a current corresponding to the empty load or a current corresponding to the full load according to the empty load or full load state of the belt conveyor 200, and a brake starting signal is output; when the current value output by the frequency converter 201 exceeds the preset current value range or the frequency converter 201 does not output current for a preset time, the anti-back-sliding module 108 outputs a fault stop signal to the sequential control module 104, so that when the belt conveyor 200 of the belt conveyor control system 100 has a fault, the sequential control module 104 can realize quick stop.
The belt conveyor control system 100 provides display data and output control to the upper layer system by using the external data output module 109 as an external interface, for example: the belt conveyor control system 100 outputs the display data of each module and the output control to the display screen 300 through the external data output module 109, thereby displaying the data and the operating state of each device through the display screen 300.
In practical applications, each module is connected to the sequential control module 104, and when a failure occurs, the sequential control module 104 outputs a stop instruction to each module through the device data output module 102, so that a rapid stop can be realized through the sequential control module 104 when the belt conveyor 200 fails.
The same and similar parts among the various embodiments in the present specification are referred to each other, and each embodiment focuses on differences from other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points. The above-described system and system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the above description of the disclosed embodiments, features described in various embodiments in this specification can be substituted for or combined with each other to enable those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A starting control method of a belt conveyor is characterized by being applied to a belt conveyor control system, wherein the belt conveyor control system is respectively in communication connection with a frequency converter and a brake in the belt conveyor; the method comprises the following steps:
the belt conveyor control system receives a belt conveyor starting instruction;
the belt conveyor control system outputs a frequency converter starting instruction to the frequency converter, and the frequency converter is started to enable the frequency converter to output current;
the belt conveyor control system obtains a current value output by the frequency converter;
the belt conveyor control system judges whether the current value is greater than a preset current value;
and if the current value is larger than the preset current value, the belt conveyor control system outputs a brake starting instruction to the brake so as to start the belt conveyor.
2. The belt conveyor start-up control method according to claim 1, wherein after the belt conveyor control system determines whether the current value is larger than a preset current value, the method further comprises:
and if the current value is not larger than the preset current value, returning to the step of executing the belt conveyor control system to obtain the current value output by the frequency converter.
3. The belt conveyor start-up control method according to claim 2, wherein the belt conveyor control system is connected in communication with an early-warning device in the belt conveyor; after the belt conveyor control system receives a belt conveyor start instruction and before the belt conveyor control system outputs a frequency converter start instruction to the frequency converter, the method further comprises:
the belt conveyor control system judges whether the shutdown time of the belt conveyor is less than a first preset time;
if the shutdown time length is less than the first preset time length, the belt conveyor control system outputs an early warning device starting instruction to the early warning device, and the early warning device is started to carry out early warning;
and after the belt conveyor control system controls the early warning device to early warn a second preset time, the belt conveyor control system outputs an early warning device stopping instruction to the early warning device and controls the early warning device to stop early warning.
4. The belt conveyor start-up control method according to claim 3, wherein the belt conveyor control system is connected in communication with a motor heating device in the belt conveyor; after the belt conveyor control system judges whether the shutdown time of the belt conveyor is less than a first preset time, before the belt conveyor control system outputs an early-warning device starting instruction to the early-warning device, the method further comprises the following steps:
if the stop time is not less than the first preset time, the belt conveyor control system outputs a motor heating equipment starting instruction to the motor heating equipment to control the motor heating equipment to heat;
and after the belt conveyor control system controls the motor heating equipment to heat for a third preset time, the belt conveyor control system outputs a motor heating equipment stop instruction to the motor heating equipment to control the motor heating equipment to stop heating.
5. The method for controlling the starting of the belt conveyor according to claim 3, wherein the belt conveyor control system is in communication connection with a motor cooling device in the belt conveyor; after the early warning device stops early warning and before the belt conveyor control system outputs a frequency converter starting instruction to the frequency converter, the method further comprises the following steps:
and the belt conveyor control system outputs a motor cooling equipment starting instruction to the motor cooling equipment to control the motor cooling equipment to cool.
6. The belt conveyor start-up control method according to any one of claims 1 to 5, characterized by further comprising:
the belt conveyor control system displays indication images of all equipment in the belt conveyor on a display screen, and the indication images are used for representing the equipment in the belt conveyor; the belt conveyor control system adjusts the display state of at least one indication image displayed in the display screen based on each starting instruction as follows: a start-up state; the belt conveyor control system displays the equipment parameters of at least one piece of equipment in the belt conveyor in the corresponding area of the corresponding indication image in the display screen; the belt conveyor control system records the starting time of the belt conveyor and displays the starting time in the display screen;
and/or the presence of a gas in the gas,
the belt conveyor control system displays a current value output by the frequency converter in an area corresponding to the frequency converter in a display screen, determines whether the frequency converter fails or not based on the current value, and displays a fault stop in the area corresponding to the frequency converter if the frequency converter fails;
and/or the presence of a gas in the gas,
and the belt conveyor control system monitors the temperature of a motor of the belt conveyor.
7. The halt control method of the belt conveyor is characterized by being applied to a belt conveyor control system, wherein the belt conveyor control system is respectively in communication connection with a frequency converter and a brake in the belt conveyor; the method comprises the following steps:
the belt conveyor control system receives a belt conveyor stop instruction;
the belt conveyor control system outputs a frequency converter stopping instruction to the frequency converter to control the frequency converter to stop outputting current;
the belt conveyor control system judges whether the frequency converter outputs the current or not;
and if the frequency converter does not output the current, the belt conveyor control system outputs a brake stop instruction to the brake so as to stop the belt conveyor.
8. The belt conveyor shutdown control method of claim 6, wherein the belt conveyor control system is in communication with a motor cooling device in the belt conveyor; after the belt conveyor control system outputs a brake stop command to the brake to stop the belt conveyor, the method further includes:
and the belt conveyor control system outputs a motor cooling equipment stop instruction to the motor cooling equipment so as to stop the motor cooling equipment.
9. The belt conveyor stop control method according to claim 7 or 8, characterized by further comprising:
the belt conveyor control system displays indication images of all equipment in the belt conveyor on a display screen, and the indication images are used for representing the equipment in the belt conveyor; the belt conveyor control system adjusts the display state of at least one indication image displayed in the display screen based on each stop instruction as follows: a stopped state; the belt conveyor control system displays equipment parameters of at least one piece of equipment in the belt conveyor in a corresponding area of the corresponding indication image in the display screen; the belt conveyor control system records the shutdown time of the belt conveyor and displays the shutdown time in the display screen;
and/or the presence of a gas in the atmosphere,
the belt conveyor control system displays a current value output by the frequency converter in an area corresponding to the frequency converter in a display screen, determines whether the frequency converter fails or not based on the current value, and displays a fault stop in the area corresponding to the frequency converter if the frequency converter fails;
and/or the presence of a gas in the atmosphere,
and the belt conveyor control system monitors the temperature of a motor of the belt conveyor.
10. A belt conveyor system, comprising: a belt conveyor and a belt conveyor control system; wherein the content of the first and second substances,
the belt conveyor control system is used for executing the belt conveyor start-up control method according to any one of claims 1 to 6 and/or executing the belt conveyor stop control method according to any one of claims 7 to 9.
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| CN202211108939.0A CN115303756A (en) | 2022-09-13 | 2022-09-13 | Belt conveyor system and method for controlling starting and stopping of belt conveyor |
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| CN202211108939.0A CN115303756A (en) | 2022-09-13 | 2022-09-13 | Belt conveyor system and method for controlling starting and stopping of belt conveyor |
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