CN210437982U - Coal conveying belt feeder coal blockage detection device - Google Patents
Coal conveying belt feeder coal blockage detection device Download PDFInfo
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- CN210437982U CN210437982U CN201921231804.7U CN201921231804U CN210437982U CN 210437982 U CN210437982 U CN 210437982U CN 201921231804 U CN201921231804 U CN 201921231804U CN 210437982 U CN210437982 U CN 210437982U
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- 239000003245 coal Substances 0.000 title claims abstract description 119
- 238000001514 detection method Methods 0.000 title claims abstract description 70
- 230000002159 abnormal effect Effects 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 12
- 239000012634 fragment Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model discloses a coal conveying belt machine coal blockage detection device, which comprises a coal conveying belt machine for feeding and a coal conveying belt machine for conveying coal, wherein a blanking hopper is arranged between the coal conveying belt machine and the coal conveying belt machine; and detection areas for detecting coal blockage are respectively arranged on two sides in the blanking pipe. Has the advantages that: the utility model discloses an integrated multiple chute blockage detects in turn and complementary detection, can not only effectively avoid the mistake to report and produce, prevents moreover that the coal charge from making the coal charge pile up on the belt feeder and causing the belt feeder damage when the intraductal jam of blanking, has also prevented that the coal charge from leaking when blockking up and causing environmental pollution and economic loss, receives outside interference little, the work that can be reliable in abominable site environment.
Description
Technical Field
The utility model relates to a coal conveying system technical field particularly, relates to a coal conveyor belt chute blockage detection device.
Background
Coal is required to be conveyed through a belt conveyor in thermal power generation, a belt coal conveyor is often used in the coal conveying process, a blanking hopper is arranged at the head of the belt coal conveyor in the mode, and when the blanking hopper is blocked, a coal blockage alarm signal needs to be sent out in time to stop the belt running, so that the belt conveyor is one of important protections of the belt conveyor of a coal conveying system and plays an important role in preventing the belt from being pulled apart and the motor from being overloaded due to the fact that the belt is crushed due to accumulated coal in a coal dropping pipe.
The device for detecting the blockage of the blanking hopper is structurally characterized in that a side door is arranged on the side wall of the blanking hopper, the upper part of the side door is hinged to the outer side of the blanking hopper, when the material is blocked, the material gives pressure to the side wall of the blanking hopper, the rotating side door of the side wall of the blanking hopper is pushed outwards, when the rotating side door touches a proximity switch, the proximity switch sends a blanking hopper blockage alarm signal outwards, the signal is transmitted to a PLC control system, the PLC control system sends a stop command to a coal conveying belt machine, the belt is stopped, in the current control logic, the PLC control program design has delay control, only when the blanking hopper blockage signal is continuously kept for more than 3 seconds, the control system judges that the blanking hopper is blocked, and then sends a belt stop command.
This kind of present gate-type blanking hopper blocks up detection device's response face is the thickness direction of side door, if block up when the blanking hopper blocks up the movable side door suddenly when being opened fast, the side door passes through from the proximity switch surface, thickness because of the side door is little, check-out time is short, blanking hopper blocks up detection device and sends transient alarm signal, can't reach the warning and lasts the control system requirement that keeps 3 seconds, consequently, control system can not send the stop command, even on-the-spot blanking hopper takes place to block up, the belt also can't in time stop.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
Problem to among the correlation technique, the utility model aims at providing a coal conveying belt feeder coal blockage detection device, detect alternately and complementary detection through integrated multiple coal blockage, can not only effectively avoid the mistake to report and produce, prevent moreover that the coal charge from making the coal charge pile up on the belt feeder when the intraductal jam of blanking from causing the belt feeder to damage, it leaks when blockking up and causes environmental pollution and economic loss also to have prevented the coal charge, it is little to receive outside interference, work that can be reliable in abominable site environment, with the above-mentioned technical problem who overcomes current correlation technique and exist.
The technical scheme of the utility model is realized like this:
a coal conveying belt conveyor coal blockage detection device comprises a coal conveying belt conveyor for feeding and a coal conveying belt conveyor for conveying coal, wherein a blanking hopper is arranged between the coal conveying belt conveyor and the coal conveying belt conveyor, the blanking hopper comprises a receiving hopper and a blanking pipe, the blanking pipe is arranged below the receiving hopper, and the receiving hopper and the blanking pipe are respectively of mutually communicated cavity structures;
detection areas for detecting coal blockage are respectively arranged on two sides in the blanking pipe, each detection area comprises an isolation part connected to the side wall of the blanking pipe and a buffer part located at the bottom end of the detection area, an accommodating area communicated with the blanking pipe is formed between the isolation part and the buffer part, and each buffer part is of an arc-shaped structure;
a detection chamber is arranged at the top end of the detection zone, a warning trigger switch and an abnormal trigger switch which are arranged in a matched mode are arranged on the two sides in the detection chamber respectively, and the abnormal trigger switch is located below the warning trigger switch;
an operation plate is arranged in the detection chamber, and trigger elastic pieces matched with the warning trigger switch and the abnormal trigger switch are arranged on two sides of the operation plate respectively;
the bottom end of the operating plate is connected with a supporting rod, the bottom end of the supporting rod penetrates through the detection chamber and extends into the detection area, and a push plate is arranged in the detection area and is positioned in the detection area;
and infrared transmitters matched with each other and a receiver used for receiving infrared signals are arranged on two sides of the detection area and on one side of the support rod.
Further, the monitoring center is used for receiving a coal blockage instruction and stopping the coal feeding belt conveyor, and the warning trigger switch and the abnormal trigger switch are respectively connected with an alarm through a relay.
Furthermore, the infrared transmitter and the receiver form a loop to be connected with the monitoring center.
Furthermore, the push plate is of an inclined structure, and the push plates on two sides are combined to form a splayed structure.
The utility model has the advantages that:
1. the utility model discloses a coal feeding belt feeder and coal conveying belt feeder and blanking fill realize coal conveying system, when taking place blanking fill chute blockage phenomenon, it will pile up the coal cinder naturally to be located the both sides detection zone, can produce the extrusion force to push pedal one side when the coal charge piles up more, thereby realize bracing piece linkage function board upward movement, and form corresponding signal return circuit when triggering the shell fragment and contacting warning trigger switch and unusual trigger switch respectively, realize chute blockage and detect, prevent that the coal charge from making the coal charge pile up on the belt feeder and causing the belt feeder to damage when the intraductal jam of blanking, the coal charge has also been prevented to leak when blockking up and has caused environmental pollution and economic loss.
2. The utility model discloses a detection zone is through integrated isolation part and buffer design, avoids the natural unloading and the coal charge of output is piled up, receives outside interference little, work that can be reliable in abominable site environment.
3. The utility model discloses a build infrared transmitter and receiver natural state down the free from extraneous matter in the detection zone and shelter from realization signal return circuit, can shelter from signal return circuit when piling up appears in the coal charge, promptly appear when can not receiving the infrared transmitter signal promptly for appearing the coal blockage phenomenon in the receiver, carry out emergency braking to the coal feeding belt feeder through the surveillance center, in time prevent the coal charge in the intraductal equipment that blocks up of blanking and cause damage, and the isolation part can effectively avoid the interference of natural coal breakage to infrared transmitter, in addition through infrared transmitter and trigger the alternative and complementary detection of shell fragment, effectively avoid the misinformation.
To sum up, the utility model discloses an integrated multiple chute blockage detects in turn and complementary detection, can not only effectively avoid the misinformation to produce, prevents moreover that the coal material from making the coal material pile up on the belt feeder and causing the belt feeder to damage when the blanking pipe is intraductal to be blockked up, has also prevented that the coal material from leaking when blockking up and causing environmental pollution and economic loss, receives outside interference little, the work that can be reliable in abominable site environment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a coal-conveying belt conveyor coal-blockage detection device according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view at a in fig. 1.
In the figure:
1. a coal feeding belt conveyor; 2. a coal conveying belt conveyor; 3. a blanking hopper; 4. a receiving hopper; 5. a blanking pipe; 6. a detection zone; 7. an isolation section; 8. a buffer section; 9. a detection chamber; 10. a warning trigger switch; 11. an abnormal trigger switch; 12. an operation plate; 13. triggering the elastic sheet; 14. a support bar; 15. pushing the plate; 16. an infrared emitter; 17. a receiver.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
According to the utility model discloses an embodiment provides a coal conveyor chute blockage detection device.
According to the utility model discloses an embodiment provides a coal conveyor chute blockage detection device.
Example one
As shown in fig. 1-2, the first embodiment of the present invention is:
a coal conveying belt conveyor coal blockage detection device comprises a coal conveying belt conveyor 1 for feeding and a coal conveying belt conveyor 2 for conveying coal, a blanking hopper 3 is arranged between the coal conveying belt conveyor 1 and the coal conveying belt conveyor 2, the blanking hopper 3 comprises a receiving hopper 4 and a blanking pipe 5, the blanking pipe 5 is arranged below the receiving hopper 4, and the receiving hopper 4 and the blanking pipe 5 are respectively of mutually communicated cavity structures;
detection areas 6 for detecting coal blockage are respectively arranged on two sides in the blanking pipe 5, each detection area 6 comprises an isolation part 7 connected to the side wall of the blanking pipe 5 and a buffer part 8 located at the bottom end of the detection area 6, an accommodating area communicated with the blanking pipe 5 is formed between the isolation part 7 and the buffer part 8, and each buffer part 8 is of an arc-shaped structure;
a detection chamber 9 is arranged at the top end of the detection zone 6, a warning trigger switch 10 and an abnormal trigger switch 11 which are arranged in a matched mode are respectively arranged on two sides in the detection chamber 9, and the abnormal trigger switch 11 is located below the warning trigger switch 10;
an operating plate 12 is arranged in the detection chamber 9, and trigger elastic pieces 13 respectively matched with the warning trigger switch 10 and the abnormal trigger switch 11 are arranged on two sides of the operating plate 12;
the bottom end of the operating plate 12 is connected with a support rod 14, the bottom end of the support rod 14 penetrates through the detection chamber 9 and extends into the detection area 6, and a push plate 15 is arranged in the detection area 6 of the support rod 14;
and infrared transmitters 16 and receivers 17 which are matched with each other are arranged on two sides of the detection area 6 and on one side of the supporting rod 14.
By means of the technical scheme, the coal conveying system is realized by the coal conveying belt conveyor 1, the coal conveying belt conveyor 2 and the blanking hopper 3, when the coal blockage phenomenon of the blanking hopper 3 occurs, the coal blocks can be naturally accumulated in the detection areas 6 at the two sides, when the coal is accumulated more, the extrusion force towards one side of the push plate 15 can be generated, thereby realize that bracing piece 14 linkage operation board 12 moves upwards, and form corresponding signal return circuit when triggering shell fragment 13 and contacting warning trigger switch 10 and unusual trigger switch 11 respectively, realize the chute blockage and detect, make the coal material pile up on the belt feeder and cause the belt feeder to damage when preventing that the coal material from blockking up in blanking pipe 5, also prevented that the coal material from leaking and causing environmental pollution and economic loss when blockking up, in addition through integrated isolation part 7 and buffer part 8 design of detection zone 6, avoid the natural unloading and the coal material of output is piled up, receive outside interference little, can reliable work in abominable site environment.
In the scheme, the monitoring system further comprises a monitoring center for receiving a coal blockage instruction and stopping the coal feeding belt conveyor 1, and the warning trigger switch 10 and the abnormal trigger switch 11 are respectively connected with an alarm through a relay. The infrared transmitter 16 and the receiver 17 form a loop to be connected with the monitoring center. Build in the detection zone 6 infrared emitter 16 and receiver 17 natural state down the free from extraneous matter shelter from realizing signal return circuit, can shelter from signal return circuit when piling up appears in the coal charge, receiver 17 appears receiving promptly when infrared emitter 16 signal promptly for appearing the coal blockage phenomenon, carry out emergency braking to coal feeding belt feeder 1 through the surveillance center, in time prevent that the coal charge from blockking up in blanking pipe 5 and the equipment that causes damages, and isolation 7 can effectively avoid the interference of natural coal breakage to infrared emitter 16, in addition through infrared emitter 16 and trigger shell fragment 13's alternation and complementary detection, effectively avoid the misinformation.
In order to better realize that push pedal 15 can be better can output the extrusion force to push pedal 15 one side when piling up much, push pedal 15 is the tilting structure, and both sides push pedal 15 combination is splayed structure.
In practical applications, when the triggering elastic sheet 13 and the abnormal triggering switch 11 form a triggering signal loop and the receiver 17 cannot receive the transmission signal of the infrared transmitter 16, both the occurrence of coal blockage occurs, and when the detection occurs, either or both of the occurrence of coal blockage occurs, and the triggering signal formed by the operating plate 12 and the warning triggering switch 10 may be a warning coal blockage signal.
To sum up, with the aid of the above technical scheme of the utility model, can realize following effect:
1. the utility model discloses a coal feeding belt feeder 1 and coal conveying belt feeder 2 and blanking fill 3 realize coal conveying system, when taking place 3 chute blockage phenomena of blanking fill, it will pile up the coal cinder naturally to be located both sides detection zone 6, can produce the extrusion force to push pedal 15 one side when the coal charge piles up more, thereby realize that 14 linkage function boards of bracing piece 12 move upwards, and form corresponding signal return circuit when triggering shell fragment 13 and contacting respectively warning trigger switch 10 and abnormal trigger switch 11, realize chute blockage and detect, it leads to the fact the belt feeder to pile up on the belt feeder to prevent that the coal charge from making the coal charge when blanking pipe 5 internal blocking up from damaging, it leaks when blockking up to have also prevented the coal charge and causes environmental pollution and economic loss.
2. The utility model discloses a detection zone 6 is through the design of integrated isolation portion 7 and buffer 8, avoids the nature unloading and the coal charge of output is piled up, receives outside interference little, work that can be reliable in abominable site environment.
3. The utility model discloses a build in the detection zone 6 infrared emitter 16 and receiver 17 natural state down the free from extraneous matter shelter from realization signal return circuit, can shelter from signal return circuit when piling up when the coal charge appears, receiver 17 appears receiving infrared emitter 16 signal the time promptly for appearing the coal blockage phenomenon, carry out emergency braking to coal feeding belt feeder 1 through the surveillance center, in time prevent that the coal charge from blockking up in blanking pipe 5 and the equipment that causes damages, and isolation 7 can effectively avoid the interference of natural coal breakage to infrared emitter 16, in addition through infrared emitter 16 and trigger shell fragment 13 in turn and complementary detection, effectively avoid the misinformation.
To sum up, the utility model discloses an integrated multiple chute blockage detects in turn and complementary detection, can not only effectively avoid the misinformation to produce, prevents moreover that the coal material from making the coal material pile up on the belt feeder and causing the belt feeder to damage when blanking pipe 5 internal blocking up, has also prevented that the coal material from leaking when blockking up and causing environmental pollution and economic loss, receives outside interference little, can reliable work in abominable site environment.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A coal conveying belt conveyor coal blockage detection device comprises a coal conveying belt conveyor (1) used for feeding and a coal conveying belt conveyor (2) used for conveying coal, and a blanking hopper (3) is arranged between the coal conveying belt conveyor (1) and the coal conveying belt conveyor (2), and is characterized in that the blanking hopper (3) comprises a receiving hopper (4) and a blanking pipe (5), the blanking pipe (5) is arranged below the receiving hopper (4), and the receiving hopper (4) and the blanking pipe (5) are respectively of a cavity structure which is communicated with each other;
detection areas (6) for detecting coal blockage are respectively arranged on two sides in the blanking pipe (5), each detection area (6) comprises an isolation part (7) connected to the side wall of the blanking pipe (5) and a buffer part (8) located at the bottom end of the detection area (6), an accommodating area communicated with the blanking pipe (5) is formed between the isolation part (7) and the buffer part (8), and each buffer part (8) is of an arc-shaped structure;
a detection chamber (9) is arranged at the top end of the detection region (6), a warning trigger switch (10) and an abnormal trigger switch (11) which are arranged in a matched mode are respectively arranged on two sides in the detection chamber (9), and the abnormal trigger switch (11) is located below the warning trigger switch (10);
an operating plate (12) is arranged in the detection chamber (9), and trigger elastic sheets (13) which are respectively matched with the warning trigger switch (10) and the abnormal trigger switch (11) are arranged on two sides of the operating plate (12);
the bottom end of the operating plate (12) is connected with a support rod (14), the bottom end of the support rod (14) penetrates through the detection chamber (9) and extends into the detection area (6), and a push plate (15) is arranged in the detection area (6) of the support rod (14);
and infrared transmitters (16) and receivers (17) which are matched with each other are arranged on two sides of the detection area (6) and on one side of the support rod (14).
2. The coal-conveying belt conveyor coal blockage detection device according to claim 1, further comprising a monitoring center for receiving a coal blockage instruction and stopping the coal-conveying belt conveyor (1), wherein the warning trigger switch (10) and the abnormal trigger switch (11) are respectively connected with an alarm through a relay.
3. The coal-conveying belt conveyor coal blockage detection device according to claim 2, wherein the infrared transmitter (16) and the receiver (17) form a loop to be connected with the monitoring center.
4. The coal-conveying belt machine coal-blockage detection device as claimed in claim 1, wherein the push plate (15) is of an inclined structure, and the push plates (15) on two sides are combined to form a splayed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231804.7U CN210437982U (en) | 2019-07-30 | 2019-07-30 | Coal conveying belt feeder coal blockage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921231804.7U CN210437982U (en) | 2019-07-30 | 2019-07-30 | Coal conveying belt feeder coal blockage detection device |
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| Publication Number | Publication Date |
|---|---|
| CN210437982U true CN210437982U (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921231804.7U Withdrawn - After Issue CN210437982U (en) | 2019-07-30 | 2019-07-30 | Coal conveying belt feeder coal blockage detection device |
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| Country | Link |
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| CN (1) | CN210437982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371615A (en) * | 2019-07-30 | 2019-10-25 | 合肥市信同信息科技有限公司 | A kind of coal conveyer belts chute blockage detection device |
-
2019
- 2019-07-30 CN CN201921231804.7U patent/CN210437982U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371615A (en) * | 2019-07-30 | 2019-10-25 | 合肥市信同信息科技有限公司 | A kind of coal conveyer belts chute blockage detection device |
| CN110371615B (en) * | 2019-07-30 | 2024-05-28 | 合肥市信同信息科技有限公司 | Coal blocking detection device of coal conveying belt conveyor |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200501 Effective date of abandoning: 20240528 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200501 Effective date of abandoning: 20240528 |