JP2002073152A - Operation monitor system for dust collector on casting line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for remotely monitoring the operation of a dust collector. SOLUTION: The operation monitor system for dust collector on casting line is provided with a local unit, the local unit accesses a communication network connected thereto, a sensor is used for measuring the desired attribute of a local unit connected to the local unit, and the local unit transmits a signal to the communication network corresponding to the measured attribute. A remote unit connected to the communication network receives a signal from the local unit and corresponding to that signal, the dust collector is remotely monitored in operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for monitoring the operation of a dust collector in a casting line capable of transmitting and receiving operation management information to and from a remote communication network remote from a site.

[0002]

2. Description of the Related Art At present, labor saving is progressing in a casting line. Therefore, for such labor-saving equipment,
There is a demand for understanding how a dust collector used in a casting line is actually operated.

[0003]

However, conventional dust collectors cannot accumulate data relating to long-term operation. For this reason, it is not enough to obtain information on how the dust collector is operating on a daily basis. Therefore, whenever there is an abnormality in the dust collector, the suction air volume, inlet temperature, inside temperature, outlet temperature, current value, vibration value,
At present, the differential pressure value of the filter cloth (filter cloth pressure loss value), the dust concentration value, and the like are checked, and there is no abnormality at the time of operation by measuring the actual thing to check.

[0004] Further, since there is no accumulation of daily data on the information on the regular or preventive maintenance of the dust collector, for example, after repairing excessively, or operating the casting line until it stops due to a failure, it is eventually operated. In some cases, the efficiency became poor, and it was insufficient to improve maintenance. Thus, the casting line requires information on the operation of the dust collector.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a dust collector in a casting line that monitors at least the dust collector at the time of operation and transmits the operation management information to a remote location. An object is to provide an operation monitoring system.

[0006]

In order to achieve the above object, a dust collector operation monitoring system in a casting line according to the present invention comprises a sensor for measuring a desired attribute of the dust collector, and a desired attribute measured by the sensor. And a local unit for transmitting a signal corresponding to the attribute on the network and a signal corresponding to the desired attribute from the local unit connected to the communication network, and displaying a desired attribute related to the dust collector. And a remote unit for monitoring the dust collector at least when the dust collector is operated.

According to the present invention, data collected from the dust collector during operation can be sent to a remote location for analysis as operation management information. Also, based on the analysis result, the operation data, the actual dust data, the filter cloth dust removal data, and the like can be selectively displayed.

Here, in the present invention, a dust collector is a device for catching dust discharged from a casting line or the like, a filter cloth (filter) for catching dust, and a dust removing device (shape) for removing dust. King mechanism, back pressure wiping mechanism, pulse jet wiping mechanism), dust collector, blower and the like.

The desired attributes of the dust collector according to the present invention include operating data (suction air volume, inlet temperature, internal temperature, outlet temperature, current value, vibration value, operating time, etc.), actual dust data (dust type, dust type). Volume), filter cloth dust data (filter cloth differential pressure value data, dust concentration value data, control data of a dust removing device) and the like. Examples of the sensor for measurement in the present invention include an image recognition camera, a differential pressure detection sensor, a concentration detection sensor, a temperature sensor, a current sensor, a vibration sensor, a rotation sensor, a weight sensor, a flow sensor, a counter, and a proximity sensor. It may be a switch or the like, and may be another type of sensor capable of measuring an attribute of driving.

The local unit according to the present invention is incorporated in a control device of the dust collector or disposed adjacent to the dust collector. The software of the local unit can be installed on a remote unit via a communication network. -Incorporates a function that can be reset by the command. That is, at remote locations, the metrics can be changed, and the local unit can be reconfigured to change certain restrictions or programmed variables.
For example, in order to determine whether or not the measurement standard is correct, a determination is made using a comparator connected to a processor or a determination means constituted by software, and if it is out of the range, a variable or the like can be changed.

The communication network according to the present invention is used between a local unit and a remote unit. Such communication systems can include telephone lines and other protocols for transmitting data to and from remote locations, such as mobile phones and Internet access. More simply, the site and the remote site may be connected by a serial cable. Alternatively, another protocol known in the art, such as a local area network or a wide area network, can be used to transmit data between them. Means for accessing the communication network include:
A modem operatively connected to the local unit can be used.

In the present invention, at least during operation of the dust collector means not only during operation but also utilization according to a user command. For example, monitoring the log only when there is a warning for a specific desired period, or re-logging the data according to the parameters.

To monitor the dust collector, for example,
It also means that the dust collector operation monitoring system sends a signal to the on-site dust collector maintenance personnel via a facsimile, mobile phone, or other mobile communication means. As a result, the necessity of maintenance can be promptly notified to the person in charge.

[0014] The remote unit is connected to the local unit by a communication network, the remote unit is adapted to receive signals from the local unit and to display measured attributes of the dust collector. So that while operating the dust collector,
The dust collector can be monitored at a remote location. Also,
Like the cull unit, it can have the function of analyzing the measurement signal to determine whether the metric is correct.

The invention thus provides a means of accessing a communication network connected to a local unit. A sensor for measuring a desired quantity of the dust collector is connected to the local unit and can send a signal to the local unit. The local unit is adapted to transmit a signal via a communication network corresponding to the attribute to be measured.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic diagram of an operation monitoring system 1 of a dust collector. The dust collecting system of the dust collector 2 is provided with sensors 3A, 3B, 3C for monitoring desired attributes of the dust collector 2 in each part of the dust collector 2. The sensors 3A, 3B, 3C are connected to the local unit 4. The local unit is connected to the remote unit 5 through a communication network. Further, a dust pipe (not shown) of a foundry is located upstream of the dust collector, and an air amount can be measured by a flow sensor 3D (not shown). Here, the sensors 3A, 3B, 3C,
As 3D, pressure sensors 3A and 3B, flow sensor 3
Although C and 3D are used, an image sensor, a temperature sensor, a vibration sensor, a rotation sensor, a weight sensor, a flow sensor, a proximity switch, and the like can also be used.

As shown in FIG. 2, the local unit 4
Includes a processor, a display, a printer, an indicator, a storage device, and a communication unit. In the present invention, the local unit 4 can be a personal computer. The local unit 4 includes a plurality of programmable logic controllers (PLs) configured as hardware or software.
C) or many other types of electronic computing and processing devices. The printer and the indicator are optional and not essential.

The pressure sensors 3A, 3B, the flow sensors 3C,
The 3D is connected to the local unit 4 via a signal line 6, and the signal line 6 transfers signals generated by the sensors 3A, 3B, 3C, 3D to an input / output board (not shown). .

The input / output board can be used as a signal processing system for converting the signal into a signal convenient for processing by the local unit 4 using the sensor output received on the signal line 6.

The signals of the sensors 3A, 3B, 3C, 3D are connected to the storage device of the
The processor can calculate whether the dust collector is operating normally by the signal from each sensor. Then, a command is issued based on the result of the determination, and the pressure, the differential pressure and the like can be displayed on the monitor on the display screen of the local unit 4. Also,
The dust removal device 7 can be controlled using the control device 8.

To add a temperature sensor for measuring the ambient temperature inside the dust collector and the outlet temperature to the sensor 3, a weak analog signal output from the sensor is amplified, and the amplified analog signal is converted into a digital signal. A system can be used. The input / output board is, for example,
It can be a multiplexer, which processes the received DC level voltage signal into a numerical signal for use in the local unit 4. Further, the inlet temperature, the inside temperature, and the outlet temperature inside the dust collector can be displayed on a monitor on the display screen of the local unit 4.

Furthermore, if an image recognition camera, a weight sensor, a counter, and a timer are added as the sensor 3, these sensors 3 are connected to the storage device of the The processor may be configured to be able to calculate whether the dust collector is operating normally by a signal from the sensor or not. Then, a command is issued based on the result of the determination, and information of the actual dust data (dust type and dust amount) of the dust collector can be displayed on the monitor on the display screen of the local unit 4.

When a density detecting sensor is used as the sensor 3, the sensor 3 is connected to the storage device of the locator unit 4 as described above, and detects a dust concentration value and the like by a signal from each sensor. It can be operated by the processor.
Then, a command is issued based on the determination result, and the dust concentration value of the dust collector and the data information of the control device 8 of the dust removal device 7 can be displayed on the monitor on the display screen of the local unit 4.

The communication unit for accessing the communication network is a modem operatively connected to the local unit 4, but depending on the communication network,
Various other types of means for accessing the communication network are available.

It includes communications such as dedicated telephone lines, dedicated communication lines, calling telephone lines, mobile telephone systems, wireless network systems, Internet access systems and other types of protocols for transmitting data to and from remote locations. A network can be used.

On the other hand, as shown in FIG. 1, the communication network is connected to a remote unit 5. The remote unit 5 receives a signal transmitted from the local unit 4 via a communication network, and displays and stores the measured attribute of the dust collector 2 measured by the sensor 3 and a processor. , A signal analysis function, a display, a printer, an indicator, and a storage device. Thereby, the dust collector 2 can be monitored when the dust collector 2 is operated. Here, the printer is optional and not essential.

The indicator can be a siren, a bell, or any other type that indicates that a signal has been received from the local unit 4. In the present invention, the remote unit 5 can be a personal computer.

Also, the remote unit 5 can be a mobile phone, in which case the signals (including images) generated by the local unit 4 are displayed on the mobile phone and thereby generated Specific sensor readings can be indicated to service personnel.

The operation monitoring system of the dust collector in the casting line configured as described above operates as follows. When the operation of the dust collector is started, the operation monitor system of the dust collector is operated. Then, in the local unit 4 or the remote unit 5, an operation data monitor can be selected (see FIG. 4). The operation data monitoring function checks whether each value measured by a current sensor, vibration sensor, etc. of a dust removal device that blows off dust adhering to the filter cloth, a blower, etc. is within the allowable range compared to the past level. Whether it is transmitted to an operation enabled system composed of a processor and software.
Each measured value is compared with a numerical value stored in advance to perform a calculation operation. When the difference is within the allowable range, the normal operation is performed. When the difference is out of the allowable range, the abnormality is warned and a stop command is issued to the dust collector 2 to cause the local unit 4 or the remote unit 5 to operate.
The current and vibration values are displayed on the display screen.

Further, a dust performance monitoring function can be added (see FIG. 5). This feature is available for image recognition cameras,
Each value measured from the weight sensor, the flow sensor, the counter, the timer, etc., is stored in advance as the type of dust in the past,
Performs a comparison operation with a numerical value such as the amount of dust. When the difference is within the allowable range, the normal operation is performed. When the difference is out of the allowable range, the abnormality is warned and a stop command is issued to the dust collector 2 to display the display screen of the local unit 4 or the remote unit 5. Displays the type and amount of dust.

Further, the operation monitor system of the dust collector
In the cull unit 4 or the remote unit 5, the filter cloth dust data monitoring function can be selected (see FIG. 6). In this function, a dust removal device such as a pulse jet sweeping-off mechanism that sweeps off dust attached to the filter cloth, a differential pressure detection sensor,
Measure and monitor with a density detection sensor. Then, each value measured by a signal from each sensor is transmitted to, for example, a remote unit, and the differential pressure value of the filter cloth stored in advance, the dust concentration value,
The measured values of the shaking, pulse pressure and back pressure removing method of the dust removing device are compared with the measured values and processed. When the difference is within the allowable range, the normal operation is performed. When the difference is out of the allowable range, the abnormality is warned and a stop command is issued to the dust collector 2 to display the dust removing device on the display screen of the local unit 4. The control data, the differential pressure value of the filter cloth before and after the dust removal device is operated, and the dust concentration value are displayed. Then, an operation signal can be transmitted to the dust removing device by a user's command or automatically, and the same can be performed for a normal operation.

Furthermore, software developed for use in the remote unit 5 can analyze the measurement signals transmitted via the communication network and make decisions regarding the status of the dust collector 2.

As described above, the present invention has been described with respect to the filtration dust collection type, but the present invention can also be applied to a dust collector such as a wet dust collection and an electric dust collection.

As is apparent from the above description, the present invention provides a sensor for measuring a desired attribute related to a dust collector, and a ro- ter for transmitting a signal corresponding to the desired attribute measured by the sensor on a network. A local unit and a signal corresponding to a desired attribute from the local unit, and displays a desired attribute related to the dust collector. At least when the dust collector is operated, the dust collector is connected to the communication unit. And a remote unit for monitoring, the operation monitoring system of the dust collector in the casting line having:
The contribution to the casting industry is significant, such as providing an operation monitoring system for a dust collector in a casting line that monitors the dust collector during operation and transmits the data to a remote location.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing an example of the configuration of a local unit of the present invention.

FIG. 3 is a conceptual diagram illustrating an example of a configuration of a remote unit according to the present invention.

FIG. 4 is an example of a monitor screen showing a monitor function of the present invention.

FIG. 5 is an example of a monitor screen showing a monitor function of the present invention.

FIG. 6 is an example of a monitor screen showing a monitor function of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dust collector operation monitoring system in a casting line 2 Dust collector 3 Sensor 4 Local unit 5 Remote unit 6 Signal line 7 Dust removal device 8 Control device

Claims (4)

[Claims] 1. A sensor for measuring a desired attribute of a dust collector in a casting line, a local unit transmitting a signal corresponding to the desired attribute measured by the sensor to a network, and A remote unit for receiving a signal corresponding to a desired attribute from the local unit, displaying a desired attribute related to the dust collector, and monitoring the dust collector at least during operation of the dust collector. Dust collector operation monitoring system. 2. The local unit includes determination means for determining whether the signal from the sensor is within a predetermined range, and wherein the signal from the sensor is the predetermined signal. The system for monitoring the operation of a dust collector in a casting line according to claim 1, wherein the communication unit accesses the communication network and sends a signal to the remote unit when the communication unit is out of the range. 3. The casting of claim 2 wherein said remote unit communicates via said communication network to change said predetermined range associated with said determining means. Dust collector operation monitoring system in the line. 4. The attribute of the dust collector includes at least one of operation data, dust actual data, differential pressure value data of filter cloth, dust concentration value data, and control data of a dust removing device. The operation monitoring system for a dust collector in a casting line according to any one of claims 1 to 3.