JP2020067759A - Automatic suggestion system for coal unloading facility components replacement - Google Patents

Abstract

To provide an automatic suggestion system for coal unloading facility components replacement that can improve operation rate and reducing maintenance cost.SOLUTION: An automatic suggestion system for coal unloading facility components replacement comprises: a control device 100 grasping the operation status of a continuous unloader to control it; a data collection device 200 collecting data indicating the operation status of the continuous unloader grasped by the control device 100 into a database; a cloud storage device 300 in which the data collected by the data collection device 200 is input and stored via an Internet line; an information analysis device 400 determining recommended replacement time for components of the continuous unloader 600 based on the data stored in the cloud storage device 300; and a client terminal 500 provided with the recommended replacement time for components of the continuous unloader obtained by the information analysis device 400 through the Internet line.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to an automatic coal unloading equipment part replacement automatic suggestion system.

  Generally, a coal transportation facility is a facility for transporting coal loaded on a ship to a plant such as a thermal power plant by a device such as a continuous unloader and a belt conveyor.

  The continuous unloader and the belt conveyor in the above-mentioned coal transportation equipment are composed of various mechanical and electric parts.

  Conventionally, the client operating the plant makes a plan for replacing these parts based on the completed book submitted by the manufacturer of the continuous unloader or belt conveyor, but if there is no part stored at the time of trouble, Every time, we suddenly place an order for parts with the manufacturer.

  Note that, for example, Japanese Patent Application Laid-Open No. 2004-242242 discloses a general technical level related to maintenance of equipment in plants such as thermal power plants.

JP, 2014-139774, A

  However, as described above, if a client suddenly places an order for a part with a maker, the maker does not always have the part in stock. If the part does not have the stock, the plant operation is stopped. Inevitably, there was a risk that the operating rate would decline.

  By the way, the maker has provided a guideline for the recommended replacement time of parts for the equipment that is its own product, but it was not possible to grasp the operating status of the coal unloading equipment in which the equipment is actually used.

  Therefore, even though the parts are still usable, they are often replaced regularly, which is one of the factors that increase the maintenance cost.

  The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide an automatic coal unloading equipment part replacement automatic suggestion system capable of improving the operation rate and reducing the maintenance cost.

The present invention is an automatic coal unloading equipment part replacement automatic suggestion system for transporting coal loaded on a ship to a plant by a device,
A control device for grasping the operating status of the device and controlling the device;
A data collection device that collects data indicating the operating status of the equipment grasped by the control device and creates a database,
A cloud storage device in which data collected by the data collection device is input and stored through an internet line,
An information analysis device that obtains a component replacement recommended time of the device based on the data stored in the cloud storage device,
This is related to an automatic suggestion system for parts excavation equipment parts exchange, which is equipped with a client terminal which is provided through the Internet at the time when the parts exchange recommended time of equipment required by the information analysis device is provided.

  In the automatic coal unloading facility parts replacement automatic suggestion system, data indicating the operating status of the equipment includes vibration measured by a sensor, temperature, flow rate of working fluid, degree of contamination of working fluid, pressure of working fluid, and current. It is preferable to do so.

  Further, in the automatic coal unloading equipment parts replacement automatic suggestion system, the information analysis device monitors a state of use time, operation rate, and load factor of the device, and correlates data affecting the part life of the device. It is preferable that the recommended replacement time of the component of the device is obtained by monitoring and determining the presence or absence and the degree of abnormality of the component of the device based on the breakdown of the correlation.

  According to the automatic coal unloading equipment part replacement automatic suggestion system of the present invention, it is possible to achieve an excellent effect that the operation rate can be improved and the maintenance cost can be reduced.

It is a control block diagram showing an example of an automatic coal unloading equipment part replacement automatic suggestion system of the present invention. It is a flow chart which shows the example of the unloading coal equipment parts exchange automatic suggestion system of the present invention. It is a figure which shows an example of the procedure of the presence / absence of the abnormality of the component of the equipment in the Example of the automatic suggestion system of coal unloading equipment parts replacement of this invention, and the change of the inlet flow rate of hydraulic oil. A diagram showing (b) is a diagram showing changes in the outlet flow rate of hydraulic oil, (c) is a diagram in which (a) and (b) are superposed, and (d) is a correlation of raw signal values. It is a figure which shows collapse. FIG. 1 is an overall schematic front sectional view showing a ship and a continuous unloader as a device in an embodiment of an automatic coal unloading equipment part replacement automatic proposal system of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 4 show an embodiment of the automatic coal unloading equipment part replacement automatic suggestion system of the present invention.

  First, an example of a continuous unloader used as a device of a coal transportation facility for transporting coal loaded on a ship to a plant will be described with reference to FIG.

  In the continuous unloader 600 shown in FIG. 4, a traveling frame 602 is movably provided on a rail 601 laid on the pier 800, and a swing frame 604 having a tiltable boom 603 is provided on the traveling frame 602. A bucket elevator 605 that scrapes coal 900 inside the hold 701 of the ship 700 and carries it out of the hold 701 is suspended from the tip of the boom 603. Inside the boom 603, a boom conveyor 607 is arranged to convey the coal 900 scraped by the bucket elevator 605 and dropped onto the table feeder 606 to the base end side of the boom 603. Further, the traveling frame 602 is provided with a carry-out conveyor 609 for carrying out the coal 900 fed from the boom conveyor 607 through the chute 608 to the outside of the traveling frame 602.

  The bucket elevator 605 is configured by disposing a body frame 610 extending in the vertical direction at the tip of the boom 603 so as to be rotatable. At the lower end of the main body frame 610, a scraping part frame 613 in which an inner frame frame 612 is extendably arranged so as to be nested with respect to an outer frame frame 611 having an open end surface is attached substantially horizontally. There is. Sprockets 614 and 615 are provided at the base ends of the outer frame 611 and the inner frame frame 612 of the scraping unit frame 613, and the sprocket 614 and 615 and the sprocket 616 provided on the upper part of the main body frame 610 are provided. An endless chain 618 equipped with a large number of buckets 617 for scraping off coal 900 is wound around.

  A balancing lever 619 is pivotally attached to the top of the swing frame 604, and a body frame 610 of the bucket elevator 605 is attached to the tip end of the balancing lever 619 via a top frame 620 to balance the boom 603. The lever 619, the swing frame 604, and the top frame 620 form a parallelogram link mechanism. A counterweight 621 is attached to the rear end of the balancing lever 619.

  The turning frame 604 is turned by a turning drive device 622 having an electric motor for turning controlled by an inverter (not shown). The boom 603 and the balancing lever 619 that form the parallelogram linkage are raised and lowered by an up-and-down drive device 623 such as an up-and-down cylinder driven by a hydraulic motor and a hydraulic unit (not shown). Further, in FIG. 4, reference numeral 624 denotes a driver's cab, and an operator rides on the driver's cab 624 to operate the continuous unloader 600.

  Then, in the case of the present embodiment, as shown in FIG. 1, the automatic coal unloading equipment part replacement automatic suggestion system includes a control device 100, a data collection device 200, a cloud storage device 300, an information analysis device 400, and a client terminal. And 500.

  The control device 100 is also called a PLC (Programmable Logic Controller), and controls the continuous unloader 600 by grasping the operating status of the continuous unloader 600 as the device.

  The data collection device 200 collects data indicating the operation status of the continuous unloader 600 grasped by the control device 100 and creates a database, which is a platform commonly used by clients and manufacturers. is there.

  The cloud storage device 300 is configured so that the data collected by the data collection device 200 is input and stored via an internet line.

  The information analysis device 400 monitors the usage time, operating rate, and load factor status of the continuous unloader 600 based on the data stored in the cloud storage device 300, and the data that affects the component life of the continuous unloader 600. Of the continuous unloader 600 is determined by determining the presence or absence and the degree of abnormality of the parts of the continuous unloader 600 based on the collapse of the correlation.

  The client terminal 500 is provided with the recommended time for replacing the parts of the continuous unloader 600, which is obtained by the information analysis apparatus 400, through the Internet line.

  In FIG. 1, as an example, an inverter 630 that drives a bucket elevator 605 of the continuous unloader 600 (see FIG. 4), an electric motor 640, and a speed reducer 650, and a hydraulic motor 660 of a hoisting drive device 623 that hoists the boom 603 and The hydraulic unit 670 is shown. A vibration sensor 641 and a temperature sensor 642 are attached to the electric motor 640 as various sensors, and a vibration sensor 651, a temperature sensor 652, and a flow rate of lubricating oil as a working fluid are attached to the speed reducer 650. A sensor 653 and a contamination degree sensor 654 of the lubricating oil are attached. A vibration sensor 661, a temperature sensor 662, and an ammeter 663 are attached to the hydraulic motor 660, and the hydraulic unit 670 has a vibration sensor 671, a temperature sensor 672, and a flow rate of working oil as working fluid. A sensor 673, a contamination degree sensor 674 for the operating oil, and a pressure sensor 675 for the operating oil are attached. It is measured by the various sensors (vibration sensor 641, 651, 661, 671, temperature sensor 642, 652, 662, 672, flow rate sensor 653, 673, dirt degree sensor 654, 674, pressure sensor 675, ammeter 663). Vibration, temperature, flow rate of working fluid (lubricating oil, working oil), degree of contamination of working fluid (lubricating oil, working oil), pressure of working fluid (lubricating oil, working oil), current are input to the control device 100. It is supposed to be done. Further, signals indicating the speed, torque, current, and voltage of the electric motor 640 are exchanged between the inverter 630 and the control device 100, and the hydraulic pressure between the hydraulic motor 660 and the control device 100 is changed. A signal indicating the speed and torque of the motor 660 is exchanged. As a result, the operating status of the continuous unloader 600 is grasped by the control device 100.

  The inverter 630, the electric motor 640, and the speed reducer 650 are not limited to those that drive the bucket elevator 605 of the continuous unloader 600, but, for example, those that drive the turning drive device 622, the boom conveyor 607, and the carry-out conveyor 609. May be Further, the hydraulic motor 660 and the hydraulic unit 670 are not limited to those that raise and lower the boom 603, but are applicable to those that drive other devices.

  Next, the operation of the above embodiment will be described.

  The vibration of the electric motor 640 that drives the bucket elevator 605 in the continuous unloader 600 of the coal transportation facility is measured by the vibration sensor 641 and the temperature is measured by the temperature sensor 642.

  In the speed reducer 650 attached to the electric motor 640, the vibration is measured by the vibration sensor 651, the temperature is measured by the temperature sensor 652, the flow rate of the lubricating oil is measured by the flow rate sensor 653, and the contamination degree sensor 654 measures the lubricating oil. The degree of dirt is measured.

  In the hydraulic motor 660 of the undulation drive device 623 that undulates the boom 603 in the continuous unloader 600 of the coal discharging facility, the vibration sensor 661 measures the vibration, the temperature sensor 662 measures the temperature, and the ammeter 663 measures the current. To be done. The current measured by the ammeter 663 is a current supplied to the hydraulic motor 660 for controlling a solenoid valve for supplying and discharging hydraulic oil.

  In the hydraulic unit 670 which supplies and discharges hydraulic oil to and from the hydraulic motor 660, vibration is measured by a vibration sensor 671, temperature is measured by a temperature sensor 672, flow rate of the hydraulic oil is measured by a flow rate sensor 673, and a contamination degree sensor 674. Is used to measure the degree of contamination of the hydraulic oil, and the pressure sensor 675 measures the pressure of the hydraulic oil.

  It is measured by the various sensors (vibration sensor 641, 651, 661, 671, temperature sensor 642, 652, 662, 672, flow rate sensor 653, 673, dirt degree sensor 654, 674, pressure sensor 675, ammeter 663). Vibration, temperature, flow rate of working fluid (lubricating oil, working oil), degree of contamination of working fluid (lubricating oil, working oil), pressure of working fluid (lubricating oil, working oil), current are input to the control device 100. It

  Further, signals indicating the speed, torque, current, and voltage of the electric motor 640 are exchanged between the inverter 630 and the control device 100, and the hydraulic pressure between the hydraulic motor 660 and the control device 100 is changed. Signals indicating the speed and torque of the motor 660 are exchanged.

  As a result, the operating status of the continuous unloader 600 is grasped by the control device 100.

  The data indicating the operating status of the continuous unloader 600, which is grasped by the control device 100, is collected by the data collecting device 200 as a platform to be made into a database and shared between the client and the maker (step S10 in FIG. 2). reference).

  The data collected by the data collection device 200 is input to and stored in the cloud storage device 300 through the Internet line (see step S20 in FIG. 2).

  Based on the data stored in the cloud storage device 300, the information analysis device 400 determines the component replacement recommended time of the continuous unloader 600. More specifically, the states of the operating time, the operating rate, and the load rate of the continuous unloader 600 are monitored (see step S30 in FIG. 2), and the correlation of data affecting the component life of the continuous unloader 600 is monitored ( (See step S40 in FIG. 2) Based on the breakdown of the correlation, the presence or absence and the degree of abnormality of the parts of the continuous unloader 600 are determined (see step S50 in FIG. 2). As a result, the component replacement recommended time of the continuous unloader 600 is obtained (see step S60 in FIG. 2).

  Here, a procedure for determining the presence / absence and the degree of abnormality of the component of the continuous unloader 600 based on the breakdown of the correlation of data affecting the component life of the continuous unloader 600 will be described with reference to FIG.

  In the example shown in FIG. 3, the hydraulic motor 660 of the hoisting drive device 623 for hoisting the boom 603 and the piping of the hydraulic unit 670 are selected as the monitoring target parts.

  In this case, the signals to be monitored are the flow rate Q of hydraulic oil measured by the flow rate sensor 673 of the hydraulic unit 670, the pressure P of hydraulic oil measured by the pressure sensor 675, and the current I (hydraulic motor measured by the ammeter 663). Current supplied to control a solenoid valve or the like for supplying / discharging hydraulic oil to / from 660).

  If the leakage of hydraulic oil due to deterioration of the pipe occurs, the change in the inlet flow rate of the hydraulic oil is as shown in FIG. 3A, while the change in the outlet flow rate of the hydraulic oil is The diagram is as shown in FIG. 3B, and the relationship between the inlet flow rate and the outlet flow rate, which should originally match, is broken as shown in FIG. 3C. Although illustration is omitted, the relationship between the inlet pressure and the outlet pressure in the hydraulic oil pressure P measured by the pressure sensor 675 also collapses. It should be noted that there is no particular change in the current supplied to control the solenoid valve or the like that supplies and discharges the hydraulic oil to the hydraulic motor 660, and the current I measured by the ammeter 663 is almost unchanged.

  That is, as shown in FIG. 3 (d), when the raw signal values of the flow rate Q, the pressure P, and the current I, which were initially contained in the normal region, change with the passage of time and the mutual correlation is lost, the correlation It is possible to recognize that the transition to the abnormal region is made based on the collapse of No. 1, and in the example of FIG. 3, it can be determined that the hydraulic oil is leaking from the pipe. It should be noted that if the degree of transition from the normal region to the abnormal region is large, the degree of abnormality is correspondingly large, and it can be determined that the state is serious.

  That is, it becomes possible to judge the presence or absence and the degree of abnormality of the component of the continuous unloader 600 based on the collapse of the correlation between the plurality of raw signal values, and the component replacement recommended time of the continuous unloader 600 is obtained. By the way, the method of determining the presence or absence and the degree of abnormality of parts based on the collapse of the correlation of multiple raw signal values and determining the recommended replacement time of parts has been proposed as a prediction, diagnosis, and analysis method using multidimensional information data. The MT (Mahalanobis Taguchi) method is used. In FIG. 3, the piping of the hydraulic motor 660 and the hydraulic unit 670 is taken as an example of the parts to be monitored, but it is possible to similarly determine the presence or absence and the degree of abnormality of other parts of the continuous unloader 600 and parts of the belt conveyor. Of course.

  The recommended part replacement time of the continuous unloader 600, which is obtained by the information analysis device 400, is provided to the client terminal 500 through the Internet line (see step S70 in FIG. 2).

  As a result, the client can refer to the component replacement recommended time of the continuous unloader 600 provided to the client terminal 500 and systematically order the components to the manufacturer rather than suddenly, and stop the plant operation. It is not necessary to do so, and it is possible to increase the operating rate.

  By the way, the manufacturer can show the operating conditions of the coal unloading equipment in which the continuous unloader 600 is actually used, and then can provide a guideline of the parts replacement recommended time for the continuous unloader 600, which is its own product. The manufacturer itself will be able to procure parts with plenty of time.

  Therefore, the parts that can still be used are continuously used as they are, and are not regularly replaced, and maintenance costs are reduced.

  In this way, the operating rate can be improved and the maintenance cost can be reduced.

  In the case of the present embodiment, the data indicating the operating status of the device (continuous unloader 600) is the sensors (vibration sensor 641, 651, 661, 671, temperature sensor 642, 652, 662, 672, flow rate sensor 653, 673). , The contamination level sensors 654 and 674, the pressure sensor 675, and the ammeter 663) include vibration, temperature, the flow rate of the working fluid, the contamination degree of the working fluid, the pressure of the working fluid, and the current. With such a configuration, it is effective in grasping the operation status of the device (continuous unloader 600) more finely.

  The information analysis device 400 also monitors the usage time, operating rate, and load factor status of the device (continuous unloader 600), and monitors the correlation of data that affects the component life of the device (continuous unloader 600). Then, by determining the presence or absence and the degree of abnormality of the component of the device (continuous unloader 600) based on the breakdown of the correlation, the component replacement recommended time of the device (continuous unloader 600) is obtained. With this configuration, it is possible to more accurately determine the component replacement recommended time of the device (continuous unloader 600) based on the degree of transition from the normal region to the abnormal region.

  Incidentally, the automatic coal unloading equipment part replacement automatic suggestion system of the present invention is not limited to the above-mentioned embodiment, and not only the continuous unloader but also the coal unloading equipment is used as a device for determining the recommended replacement time. Needless to say, various modifications can be made within the scope not departing from the gist of the present invention, such as including a belt conveyor constituting the same.

100 control device 200 data collection device 300 cloud storage device 400 information analysis device 500 client terminal 600 continuous unloader (device)
601 Rail 602 Traveling frame 603 Boom 604 Revolving frame 605 Bucket elevator 606 Table feeder 607 Boom conveyor 608 Chute 609 Outgoing conveyor 610 Main body frame 611 Outer frame 612 Inner frame 613 Scraping frame 614 Sprocket 615 Sprocket 616 Sprocket 617 Bucket 618 Chain 619 Balancing lever 620 Top frame 621 Counter weight 622 Swiveling drive device 623 Elevation drive device 624 Driver's cab 630 Inverter 640 Electric motor 641 Vibration sensor (sensor)
642 Temperature sensor (sensor)
650 Reducer 651 Vibration sensor (sensor)
652 Temperature sensor (sensor)
653 Flow rate sensor (sensor)
654 Dirt sensor (sensor)
660 Hydraulic motor 661 Vibration sensor (sensor)
662 Temperature sensor
663 Ammeter (sensor)
670 Hydraulic unit 671 Vibration sensor (sensor)
672 Temperature sensor (sensor)
673 Flow rate sensor (sensor)
674 Dirt sensor (sensor)
675 Pressure sensor (sensor)
700 Ship 701 Hold 800 Pier 900 Coal Q Flow P Pressure I Current

Claims (3)

An automatic coal unloading equipment parts replacement suggestion system for transporting coal loaded on a ship to a plant by equipment,
A control device for grasping the operating status of the device and controlling the device;
A data collection device that collects data indicating the operating status of the equipment grasped by the control device and creates a database,
A cloud storage device in which data collected by the data collection device is input and stored through an internet line,
An information analysis device that obtains a component replacement recommended time of the device based on the data stored in the cloud storage device,
An automatic coal unloading equipment parts replacement suggestion system with a client terminal that provides the recommended parts replacement time for the equipment required by the information analysis device through an internet line.   The automatic coal exchanging equipment for parts handling equipment according to claim 1, wherein the data indicating the operating state of the equipment includes vibration measured by a sensor, temperature, flow rate of working fluid, degree of contamination of working fluid, pressure of working fluid, and current. Proposal system.   The information analysis device monitors a state of use time, operating rate, and load rate of the device, monitors a correlation of data affecting a component life of the device, and determines a component of the device based on the collapse of the correlation. 3. The automatic coal unloading equipment part replacement suggestion system according to claim 1 or 2, wherein the recommended replacement time for parts of the equipment is determined by determining whether or not there is any abnormality.

Images