KR101147501B1 - The Fire Detecting Apparatus for Belt Conveyor - Google Patents

The Fire Detecting Apparatus for Belt Conveyor Download PDF

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Publication number
KR101147501B1
KR101147501B1 KR1020100063250A KR20100063250A KR101147501B1 KR 101147501 B1 KR101147501 B1 KR 101147501B1 KR 1020100063250 A KR1020100063250 A KR 1020100063250A KR 20100063250 A KR20100063250 A KR 20100063250A KR 101147501 B1 KR101147501 B1 KR 101147501B1
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South Korea
Prior art keywords
roller
unit
sensor unit
belt conveyor
fire detection
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KR1020100063250A
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Korean (ko)
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KR20120002643A (en
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이상범
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(주)세네카
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Abstract

The present invention relates to a fire detection apparatus for a belt conveyor that is installed in a thermal power plant and the like to detect the fire generated during the operation of the belt conveyor for transporting and supplying raw coal, and the rotation of the carrier roller to assist the drive of the belt conveyor. The present invention relates to a fire detection device for a belt conveyor that reduces the installation cost by simplifying the configuration of the fire detection device while enabling accurate fire detection and fire prevention by measuring speed and ambient temperature in real time.
The fire detection apparatus for a belt conveyor according to the present invention includes a belt, a plurality of carrier rollers 210 provided at predetermined intervals along the belt and assisting the operation of the belt and the carrier roller rotatably coupled to a rotating shaft ( In the fire detection apparatus of the belt conveyor is installed on the belt conveyor formed by including a roller unit 200 consisting of a roller stand 220 for supporting the 210, to detect a fire, the rotation of the carrier roller 210 Fire detection sensor unit 110 is provided with a rotational speed measurement sensor unit 120 for measuring the speed, and a temperature measuring sensor unit 130 for measuring the temperature around the carrier roller 210; And a controller 140 that receives signals measured from the rotational speed measurement sensor unit 120 and the temperature measurement sensor unit 130 of the fire detection sensor unit 110 to determine whether a fire has occurred. The fire detection sensor unit 110 may be installed at each of the roller units 200, and the rotational speed measuring sensor unit may be installed at at least two roller units 200. 120 is connected to each other to transmit one output signal to the control unit 140, each installed in the plurality of the roller unit 200, two or more of the plurality of the roller unit 200 of the installed roller unit 200 The temperature measuring sensor 130 is installed in the connection to each other is characterized in that for transmitting one output signal to the control unit 140.

Description

Fire Detecting Apparatus for Belt Conveyor

The present invention relates to a fire detection apparatus for a belt conveyor that is installed in a thermal power plant and the like to detect the fire generated during the operation of the belt conveyor for transporting and supplying raw coal, and the rotation of the carrier roller to assist the drive of the belt conveyor. The present invention relates to a fire detection device for a belt conveyor that reduces the installation cost by simplifying the configuration of the fire detection device while enabling accurate fire detection and fire prevention by measuring speed and ambient temperature in real time.

In general, a belt conveyor is a device that loads or stores raw coal stored in a yard to a target device or facility. The belt conveyor determines the driving unit, head chute, and transfer section connected to the reducer and the head pulley by power from the drive motor. It consists of a part, a tail chute and a tensioning device that keeps the tension of the belt conveyor constant, and a belt and a carrier roller.

Such a belt conveyor fires when heat generated by continuous friction between the tail pulley and the frame stand, or the carrier roller and the belt due to accumulation of coal falling from the top of the rock protection plate installed in the tail portion or the backside of the belt. Became a ignition factor, and caused a meandering state of the belt,

At this time, the fire occurs frequently due to friction between the carrier roller and the belt, the production equipment is damaged, the mass production is lowered, and in the case of a large belt conveyor, it is difficult to detect the fire occurrence area.

Accordingly, Patent Registration No. 10-0644531 (name of the invention: a belt conveyor equipped with a fire detection device) enables the early detection of a fire that may occur in the belt conveyor with an optical sensor cable so that the user can be notified and the raw coal There is a belt conveyor provided with a fire detection device that is generated from the back and is attached to the optical sensor cable to clean the dust to always be able to detect high sensitivity.

However, in the case of the belt conveyor equipped with the fire detection device, as shown in Figure 1, the optical sensor cable 20 is installed along the belt conveyor 10, for cleaning the optical sensor cable 20 There is a problem in that the washing unit 30 is provided separately, and the equipment and mounting are expensive.

Due to the complicated configuration, there is a difficulty in manufacturing the device and mounting the belt conveyor, and it takes a lot of time and money for maintenance.

If the optical sensor cable is disconnected or broken due to external impact or long time use, there is a problem in that it is insufficient to detect a fire because a replaceable fire detection means is not provided.

The present invention has been made to solve the above problems, it is possible to accurately measure the temperature around the carrier roller, and at the same time simplify the configuration of the belt conveyor fire detection device to reduce the manufacturing cost of the device, belt conveyor installed over a long distance In order to provide an economic belt conveyor fire detection device by reducing the installation cost for the auxiliary equipment required when installing the temperature measuring sensor unit on each of the carrier roller and the roller stand provided in a large number along the

In addition, even if a failure occurs due to external shock or long time of use, the temperature measuring sensor unit is equipped with a separate means for detecting fire by improving the accuracy and soundness of fire detection. Make it possible to provide a sensing device.

In order to solve the above problems, in one embodiment of the present invention, a plurality of belts are provided at predetermined intervals along the belt, and are rotatably coupled on a rotating shaft and a carrier roller 210 for assisting the operation of the belt. In the fire detection apparatus 100 of the belt conveyor is installed on the belt conveyor is formed, including a roller unit 200 consisting of a roller stand 220 for supporting the carrier roller 210, the fire detection device, Fire detection sensor unit 110 is provided with a rotational speed measurement sensor unit 120 for measuring the rotational speed of the carrier roller 210, and a temperature measuring sensor unit 130 for measuring the temperature around the carrier roller 210. ; And a controller 140 that receives signals measured from the rotational speed measurement sensor unit 120 and the temperature measurement sensor unit 130 of the fire detection sensor unit 110 to determine whether a fire has occurred. ,

The fire detection sensor unit 110 is installed on each of the plurality of roller units 200, and each of the rotational speed measuring sensor units installed on two or more roller units 200 of the plurality of roller units 200 installed. 120 is connected to each other to transmit one output signal to the control unit 140, each installed in the plurality of the roller unit 200, two or more roller unit 200 of the plurality of the roller unit 200 is installed Each of the temperature measuring sensor 130 installed in the) is connected to each other to provide a fire detection device 100 of the belt conveyor, characterized in that for transmitting one output signal to the control unit 140.

In the fire detection apparatus 100 of the belt conveyor of one embodiment of the present invention, the temperature measuring sensor 130 may be formed of a thermocouple or resistance temperature detector (RTD),

The rotational speed measurement sensor unit 120, the rotational speed detection unit 121 is installed on the rotational axis of the roller stand 220 to which the carrier roller 210 is rotatably coupled, and the rotational speed detection unit 121 Rotational speed detection unit 122 is coupled to the outer surface of the carrier roller 210 which is located opposite to the rotational speed detection unit by the magnetic induction between the rotational speed detection unit 121 and the rotational speed detection unit 122 The electromotive force may be generated at 121.

In addition, preferably, the rotational speed measurement sensor unit 120 may include a relay switch 123 turned on or off according to a predetermined electromotive force value; The relay switch 123 may be turned on or off according to a predetermined electromotive force value generated by the rotational speed detection unit 121.

More preferably, the rotation speed measuring sensor 120 and the temperature measuring sensor 130 may be detachably coupled to the outer circumferential surface of the rotating shaft of the roller stand 220 up and down,

A fire occurrence alarm unit 150 which receives a signal from the control unit 140 to notify a fire occurrence to the outside; It may be configured to include more.

The fire detection apparatus of the belt conveyor according to the present invention, when the temperature measuring sensor unit and the rotational speed sensor unit are installed on each of the carrier roller and the roller stand provided with a large number along the belt conveyor installed over a long distance, each of said temperature measuring sensor After connecting the part and the rotational speed sensor unit to each section group, it is configured to determine the fire by receiving the measurement signal for each group, so that the temperature around the carrier roller and the rotational speed of the carrier roller can be accurately measured. At the same time, it is possible to simplify the configuration of the fire detection apparatus, thereby lowering the manufacturing cost of the apparatus, and reducing the installation cost for the auxiliary equipment required.

In addition, by combining the rotational speed measuring sensor unit for measuring the rotational speed of the carrier roller with the temperature measuring sensor unit, it is possible to detect a fire caused by friction between the carrier roller and the belt in advance, and the temperature measuring sensor unit external impact However, even in the event of a failure due to the use of a long time, it is possible to detect the occurrence of a fire in advance, thereby improving the accuracy and soundness of the fire detection.

1 is a side view showing a belt conveyor equipped with a conventional fire detection device;
2 is a block diagram showing the configuration of a fire detection apparatus 100 for a belt conveyor according to the present invention;
3A is a front view showing the roller portion 200 constituting the belt conveyor;
3B is a side view showing a plurality of roller parts 200 constituting a belt conveyor;
4 is a partial perspective view showing that the fire detection sensor unit constituting the fire detection apparatus 100 of the belt conveyor according to the present invention is installed on the rotation shaft of the roller stand 220;
5 is a configuration showing that the fire detection sensor unit installed in the plurality of roller unit 200 according to the present invention is grouped into groups for each section so that one output signal for each group is input to the controller 140;
6 is grouped into groups for each section, and a plurality of temperature measuring sensor units 130 constituting each single group are connected to each other to be integrated into one electromotive force value to transmit a single output signal to the controller 140. State diagram showing;
7 is a connection state diagram showing another embodiment in which a plurality of temperature measuring sensor units 130 are integrally connected to each other;
FIG. 8 is a state diagram illustrating that a plurality of rotational speed measurement sensor units 120 which are grouped into groups for each section are connected to each other to transmit a single output signal to the controller 140; And,
9 is a circuit diagram illustrating another embodiment of the rotation speed measurement sensor unit 120.

Hereinafter, embodiments of the present invention in which the above object can be specifically realized will be described with reference to the accompanying drawings. In describing the embodiments, the same names are denoted by the same reference numerals, and further description thereof will be omitted below.

Figure 2 is a block diagram showing the configuration of the fire detection apparatus 100 of the belt conveyor according to the present invention, Figure 3a is a front view showing the roller portion 200 constituting the belt conveyor, Figure 3b It is a side view which shows the many roller part 200. FIG. Figure 4 is a partial perspective view showing that the fire detection sensor unit constituting the fire detection apparatus 100 of the belt conveyor according to the present invention is installed on the rotating shaft of the roller stand 220, Figure 5 is a plurality of roller parts according to the present invention The fire detection sensor units installed in the 200 are grouped into groups for each section so that one output signal for each group is input to the controller 140.

In addition, FIG. 6 is grouped into groups for each section, and a plurality of temperature measuring sensor units 130 forming each single group are connected to each other to be integrated into one electromotive force value to transmit a single output signal to the controller 140. 7 is a connection state diagram showing another embodiment in which a plurality of temperature measuring sensor units 130 are integrally connected to each other, and FIG. 8 is bundled into groups for each section, and forms a single group for each. FIG. 9 is a state diagram illustrating a plurality of rotation speed measurement sensor units 120 being connected to each other to transmit a single output signal to the controller 140. FIG. 9 is a circuit diagram illustrating other embodiments of the rotation speed measurement sensor unit 120. It is also.

The fire detection apparatus 100 of the belt conveyor according to the present invention, as shown in Figure 2, is largely installed in a plurality of roller unit 200 provided with a predetermined interval along the belt of the roller unit 200 Fire detection sensor 110 for measuring the rotational speed and the ambient temperature of the carrier roller 210, and the control unit 140 to determine whether a fire occurs by receiving a signal measured from the fire detection sensor 110 It is configured, preferably, may be provided with a fire occurrence alarm unit 150 to notify the fire occurrence to the outside by receiving a signal from the control unit 140, whether the fire of the belt conveyor in the central control room 170 of the remote place In order to monitor in real time it may be provided with a communication unit 160 that can wirelessly transmit a signal of the control unit 140 to the central control room (170).

The roller unit 200 is a facility for assisting the belt of the belt conveyor for transporting the raw coal accumulated in the yard to the intended place, as shown in Figures 3a and 3b, generally a plurality of carrier rollers 210 And a roller stand 220 supporting the carrier roller 210 rotatably coupled to the rotating shaft, wherein the fire detection sensor unit 110 is adjacent to the carrier roller 210 of the roller stand 220. It is installed on the rotating shaft.

In general, since the installation distance of the belt conveyor is installed in a long distance from the yard where the raw coal is piled up to the target place, the roller unit 200 for assisting the belt is installed in a large number with a predetermined interval along the belt, the roller The number of the installation of the carrier roller 210 which comprises the part 200 may range from as few as 20,000 to as many as 33,000. Accordingly, the number of measurement sensors to detect the fire around each of the carrier rollers 210 is also equal to or greater than that. The equipment for collecting data measured by each measurement sensor also includes a main part of the fire detection device. Installation costs also increase in proportion to the number of measurement sensors and the number of data acquisition devices.

The fire detection apparatus 100 of the belt conveyor according to the present invention, as shown in Figure 4 and 5, to form the fire detection sensor 110 for accurate fire detection for the roller unit 200. The rotation speed measurement sensor unit 120 for measuring the rotational speed of the carrier roller 210 and the temperature measurement sensor unit 130 for measuring the temperature around the carrier roller 210 are installed in each roller unit 200. In addition, instead of collecting the measurement signal data of the paper detection sensor unit 110 installed in the individual roller unit 200 in a one-to-one relationship in order to reduce the cost of the installation, the yard where the raw coal is piled up. The belt conveyor installed in the target place in the divided into a section of a predetermined distance, and the output signal by grouping the measurement signal of the fire detection sensor unit 110 installed in the plurality of rollers 200 included in the divided section into a group To collect By processing this, the number of data collection devices required for data collection can be greatly reduced, and the cost of installing a fire detection apparatus can be drastically reduced.

To this end, the fire detection apparatus 100 according to the present invention is installed on a plurality of rollers 200 forming a group of a predetermined section, respectively, the rotational speed measuring sensor unit 120 for measuring the rotational speed, and measures the ambient temperature Instead of collecting and processing the output signal of the temperature measuring sensor 130 as a single signal, as shown in FIG. 5, the control unit may be configured as a single signal by connecting the circuits to each other as a single signal. Output to 140, the control unit 140 receives the integrated measurement signal for each group to determine whether a fire occurs using this.

Specifically, the process of integrating the measurement signal for each group of the fire detection sensor unit 110, first, in the case of the temperature measurement sensor unit 130 constituting the fire detection sensor unit 110, shown in FIG As described above, circuits are connected to each other so that each electromotive force generated according to each temperature measured by each temperature measuring sensor unit 130 forming a group is connected in series and summed into one electromotive force value. One electromotive force value is output to the control unit 140, and the control unit 140 includes a group at an electromotive force value of the temperature measuring sensor unit 130 in which the roller unit 200 can be generated at a temperature in a normal operating state. After setting a reference electromotive force value by multiplying a predetermined number of the temperature measuring sensor unit 130, the sum of the electromotive force values is compared with the reference electromotive force value to determine whether or not a fire occurs in large and small sizes. Preferably, the control unit 140 operates the roller unit 200 to determine the magnitude of the reference electromotive force value and the sum of the sum of the electromotive force values for determining whether a fire occurs in the control unit 140. It can be configured to be set by the user according to the environment.

In addition, as another method of integrating the plurality of temperature measuring sensor units 130 with each other, as shown in FIG. 7, after the pair of temperature measuring sensor units 130 are connected in series with different polarities, again, Each of the pair of temperature measuring sensor units 130 are connected to each other in series so as to be connected in all even numbers, and thus, in the normal operating state, the temperature measuring sensor parts 130 forming the whole predetermined even number in the group are the same. Attenuation of the generated electromotive force value to each other to output an electromotive force of '0'V, even if a pair of the temperature measuring sensor unit 130 is provided in a number of pairs (group) to the generated electromotive force value according to the temperature rise When a deviation occurs, a predetermined voltage value generated as a deviation is output to the controller 140, and at this time, the controller 140 determines a possibility of a fire due to a temperature rise.

The fire detection sensor unit 110 is provided with a rotation speed measurement sensor unit 120 together with a temperature measurement sensor unit 130, the rotation speed measurement sensor unit 120 is a carrier roller of the roller unit 200 When the rotational speed of 210 is measured and rotated below a predetermined speed, fallout of the raw coal is laminated on the rotation shaft of the carrier roller 210 to prevent rotation, or the carrier roller 210 and the belt (not shown). It may be determined that friction is occurring between the carrier rollers, and a fire may be generated for the carrier roller 210 that rotates at or below a predetermined speed in order to prevent a fire caused by friction between the carrier roller 210 and the belt. Will ring. As such, by providing the rotational speed measurement sensor unit 120 together with the temperature measurement sensor unit 130, even through the rotational speed measurement sensor unit 120 in a sudden situation in which the temperature measurement sensor unit 130 does not operate properly. It is possible to detect the possibility of a fire in advance, thereby double monitoring the fire occurrence and further improve the fire detection performance.

As shown in FIG. 8, the rotational speed measurement sensor unit 120 also outputs the output signals of the rotational speed measurement sensor unit 120 for each group divided by each section, similarly to the temperature measurement sensor unit 130. Processed as a single signal to be delivered to the control unit 140 is configured to reduce the installation cost through the simplification of the data collection equipment. That is, as shown in Figures 4 and 8, each of the roller portion 200 forming a group is provided with a rotational speed measurement sensor 120, the rotational speed measurement sensor 120, Rotational speed detection unit 121 is installed on the rotating shaft of the roller stand 220 to which the carrier roller 210 is rotatably coupled, and the carrier roller 210 in a position facing the rotational speed detection unit 121. Rotational speed detection unit 122 is coupled to the outer surface.

The rotational speed detection unit 121 is fixedly positioned on the rotational shaft, and the rotational speed detection unit 122 is installed to rotate together with the carrier roller 210 so that the rotational speed detection unit 121 and the rotational speed detection unit ( The distance from the carrier 122 is changed by the rotation of the carrier roller 210, which generates an electromotive force according to a magnetic induction phenomenon in the detector 121, and the detector 122 is coupled to rotate the carrier roller 210 that rotates together. The higher the speed, the higher the generated electromotive force value according to the magnetic induction phenomenon of the detector 121, and conversely, the slower the lower the generated electromotive force value of the detector 121 according to the generated electromotive force value of the rotational speed detector 121. The rotational speed of the carrier roller 210 is measured. Preferably, as shown in FIG. 8, the rotation speed measuring sensor unit 120 includes a relay switch 123 that is turned on or off according to a predetermined electromotive force value according to the rotation speed of the carrier roller 210. The generated electromotive force may be compared with a predetermined reference electromotive force value generated under a normal operating condition of the carrier roller 210, and the relay switch 123 may be configured to be turned on or off depending on the size. In another embodiment constituting the rotational speed measurement sensor unit 120, as shown in FIG. 9, an amplifier and a comparator are omitted, and large and small values of the electromotive force generated by the rotational speed detection unit 121 are shown. By providing only the relay switch 123 to operate at a predetermined specific electromotive force value according to, it is possible to configure the circuit without the need for a separate power supply for the operation of the amplifier or the like.

Thus, when any one of the relay switch 123 of the relay switch 123 of the rotational speed measurement sensor unit provided in each roller unit 200 forming a group is turned off, one output signal for the group Receiving the control unit 140 determines that a fire may occur for the group and alerts the alarm or the central control room 170 in a remote location.

Preferably, when the belt conveyor is divided into sections according to a predetermined distance, the shorter the section distance is, the more accurate the position of the fireable roller unit 200 can be determined. This increase allows you to adjust the segment distance for grouping, taking into account site conditions and costs.

Also, as shown in FIG. 4, the rotation speed measurement sensor 120 and the temperature measurement sensor 130 may be separated up and down on the outer circumferential surface of the rotation shaft of the roller stand 220. By forming a combination, it is possible to minimize the installation space to facilitate installation and maintenance.

As described above, the fire detection apparatus 100 of the belt conveyor according to the present invention has a rotation speed measurement sensor unit 120 together with the temperature sensor unit 130, even in a sudden situation where one sensor unit failure occurs Accurate fire detection is possible, and by setting a group for each section and connecting a plurality of fire detection unit 110 forming a group to each other integrated output as one output signal, collecting data equipment according to the belt conveyor installed over a long distance The cost of installation can be reduced, and the cost of installing and maintaining the device can be reduced.

It is to be understood by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit and scope of the invention,

Accordingly, the above-described embodiments are to be considered illustrative and not restrictive, and all embodiments within the scope of the appended claims and their equivalents are intended to be included within the scope of the present invention.

100: fire detection device of the belt conveyor
110: fire detection sensor unit 120: rotational speed measurement sensor unit
121: rotational speed detection unit 122: rotational speed detection unit
123: relay switch
130: temperature measurement sensor unit 140: control unit
150: fire occurrence alarm unit 160: communication unit
170: central control room
200: roller portion 210: carrier roller
220: roller stand

Claims (6)

It is composed of a belt, a plurality of carrier rollers 210 provided at predetermined intervals along the belt and assisting the operation of the belt and a roller stand 220 for supporting the carrier roller 210 rotatably coupled to a rotating shaft. In the belt conveyor fire detection device is installed on the belt conveyor formed to include a roller unit 200 to detect the fire,
Fire detection sensor unit 110 is provided with a rotation speed measurement sensor unit 120 for measuring the rotational speed of the carrier roller 210, and a temperature measurement sensor unit 130 for measuring the temperature around the carrier roller 210. ); And,
And a control unit 140 determining whether a fire occurs by receiving signals measured from the rotational speed measurement sensor unit 120 and the temperature measurement sensor unit 130 of the fire detection sensor unit 110.

The fire detection sensor unit 110,
Each of the plurality of roller parts 200 installed in each of the plurality of the roller unit 200, the rotational speed measuring sensor unit 120 installed in at least two roller unit 200 is connected to each other to output one Transmits a signal to the controller 140,
Each of the plurality of roller units 200 installed in each of the plurality of the roller unit 200 installed in the at least two roller unit 200, each of the temperature measuring sensor unit 130 is connected to each other one output signal Fire detection device of the belt conveyor, characterized in that for transmitting to the control unit (140).
The method of claim 1,
The temperature measuring sensor unit 130,
Fire detection device 100 of the belt conveyor, characterized in that formed by thermocouples (Rr) (Resistance Temperature Detector).
The method of claim 1,
The rotation speed measurement sensor unit 120,
The rotational speed detector 121 installed on the rotational axis of the roller stand 220 to which the carrier roller 210 is rotatably coupled, and the carrier roller 210 positioned to face the rotational speed detector 121. Composed of the rotational speed detection unit 122 coupled to the outer surface,
A belt conveyor fire detection apparatus (100), characterized in that electromotive force is generated at the rotational speed detection unit (121) by magnetic induction between the rotational speed detection unit (121) and the rotational speed detection unit (122).
The method of claim 3, wherein
The rotation speed measurement sensor unit 120,
A relay switch 123 which is turned on or off according to a predetermined electromotive force value; It is configured to include more
Fire detection device of the belt conveyor (100), characterized in that the relay switch 123 is turned on and off in accordance with a predetermined electromotive force value generated by the rotational speed detector (121).
The method according to any one of claims 1 to 4,
The rotational speed measuring sensor unit 120 and the temperature measuring sensor unit 130,
Fire detection device (100) of the belt conveyor, characterized in that it is provided detachably coupled to the outer peripheral surface of the rotating shaft of the roller stand 220 up and down.
The method according to any one of claims 1 to 4,
A fire occurrence alarm unit 150 which receives a signal from the control unit 140 to notify a fire occurrence to the outside; Fire detection device 100 of the belt conveyor, characterized in that further comprises.
KR1020100063250A 2010-07-01 2010-07-01 The Fire Detecting Apparatus for Belt Conveyor KR101147501B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108609346A (en) * 2018-04-28 2018-10-02 山东科技大学 Belt conveyer intelligence carrier roller system
KR102162838B1 (en) * 2019-10-29 2020-10-07 (주)화승엑스윌 Fire predicting system for conveyor belt and safety management system using thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102299560B1 (en) * 2019-12-19 2021-09-07 현대제철 주식회사 Fire protection device for belt conveyor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10218340A (en) 1997-02-12 1998-08-18 Ntn Corp Abnormality detecting device for conveyor roller
JP2004338890A (en) 2003-05-16 2004-12-02 Jfe Mechanical Co Ltd Bearing management device and bearing management system using it

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10218340A (en) 1997-02-12 1998-08-18 Ntn Corp Abnormality detecting device for conveyor roller
JP2004338890A (en) 2003-05-16 2004-12-02 Jfe Mechanical Co Ltd Bearing management device and bearing management system using it

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108609346A (en) * 2018-04-28 2018-10-02 山东科技大学 Belt conveyer intelligence carrier roller system
KR102162838B1 (en) * 2019-10-29 2020-10-07 (주)화승엑스윌 Fire predicting system for conveyor belt and safety management system using thereof

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