CN216376597U - Pneumatic conveying fault detection system based on PLC - Google Patents
Pneumatic conveying fault detection system based on PLC Download PDFInfo
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- CN216376597U CN216376597U CN202122751819.XU CN202122751819U CN216376597U CN 216376597 U CN216376597 U CN 216376597U CN 202122751819 U CN202122751819 U CN 202122751819U CN 216376597 U CN216376597 U CN 216376597U
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Abstract
The utility model discloses a pneumatic transmission fault detection system based on a PLC (programmable logic controller), which comprises a pneumatic transmission pipeline, wherein the pneumatic transmission pipeline comprises a transmission starting section, a blanking connecting section and a plurality of remote transmission sections which are sequentially connected together, a main transmission electromagnetic valve, a main pressure sensor and a flow sensor are arranged on the transmission starting section, a plurality of blanking devices are connected on the blanking connecting section, and a partial pressure sensor is arranged at the tail end of each remote transmission section; the system also comprises a PLC control system, wherein the signal output ends of the main pressure sensor, the flow sensor and the partial pressure sensor are connected with the PLC control system, and the signal output end of the PLC control system is connected with the main conveying electromagnetic valve and the blanking device; the pressure value in the pneumatic conveying pipeline can be detected in a segmented mode in real time through the main pressure sensor and the plurality of sub-pressure sensors, whether blockage occurs or not and the position where the blockage is located can be judged according to the size of the pressure value, and the detection result is uploaded to the PLC control system.
Description
Technical Field
The utility model relates to a pneumatic transmission system, in particular to a pneumatic transmission fault detection system based on a PLC.
Background
In industrial processes, various powdered raw materials, such as raw material yards in steel plants, are transported at long distances, such as several hundred meters or more, and more than 2000 meters. The most common, difficult and difficult to troubleshoot failure during pneumatic transport is pipe plugging.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a pneumatic transmission fault detection system based on a PLC, which can accurately detect a blocking point.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the pneumatic conveying fault detection system based on the PLC comprises a pneumatic conveying pipeline, wherein the pneumatic conveying pipeline comprises a conveying starting section, a blanking connecting section and a plurality of remote conveying sections which are sequentially connected together, a main conveying electromagnetic valve, a main pressure sensor and a flow sensor are installed on the conveying starting section, a plurality of blanking devices are connected to the blanking connecting section, and a sub-pressure sensor is installed at the tail end of each remote conveying section;
the automatic blanking device is characterized by further comprising a PLC control system, the signal output ends of the main pressure sensor, the flow sensor and the partial pressure sensor are connected with the signal input end of the PLC control system, and the signal output end of the PLC control system is connected with the main conveying electromagnetic valve and the blanking device.
As a preferred technical scheme, the blanking device comprises a blanking hopper, a blanking connector is mounted at the bottom of the blanking hopper, the blanking connector is connected with the blanking connecting section of the pneumatic conveying pipeline, and a blanking pneumatic valve is mounted between the blanking hopper and the blanking connector.
As a preferred technical scheme, the PLC control system is connected with a human-computer interaction interface.
As a preferred technical solution, the human-computer interaction interface includes a touch screen or a central control display screen connected with the PLC control system.
Due to the adoption of the technical scheme, the pneumatic conveying fault detection system based on the PLC comprises a pneumatic conveying pipeline, wherein the pneumatic conveying pipeline comprises a conveying starting section, a blanking connecting section and a plurality of remote conveying sections which are sequentially connected together, a main conveying electromagnetic valve, a main pressure sensor and a flow sensor are arranged on the conveying starting section, a plurality of blanking devices are connected on the blanking connecting section, and a partial pressure sensor is arranged at the tail end of each remote conveying section; the system also comprises a PLC control system, the signal output ends of the main pressure sensor, the flow sensor and the partial pressure sensor are connected with the signal input end of the PLC control system, and the signal output end of the PLC control system is connected with the main conveying electromagnetic valve and the blanking device; the pressure value in the pneumatic conveying pipeline can be detected in a segmented mode in real time through the main pressure sensor and the plurality of sub pressure sensors, whether the position where the position is blocked and the position where the position is blocked can be judged according to the size of the pressure value, the detection result is uploaded to the PLC control system, and the PLC control system is used for controlling shutdown and maintenance.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a connection diagram of a PLC control system according to an embodiment of the present invention;
in the figure: 11-conveying initial section; 12-blanking connecting section; 13-a remote transport section; 21-a main delivery solenoid valve; 22-a primary pressure sensor; 23-a flow sensor; 24-partial pressure sensor; 31-a blanking hopper; 32-a blanking connector; 33-blanking pneumatic valve.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1 and 2, the pneumatic conveying fault detection system based on the PLC includes a pneumatic conveying pipeline, the pneumatic conveying pipeline includes a conveying start section 11, a blanking connection section 12, and a plurality of remote conveying sections 13, which are sequentially connected together, the conveying start section 11 is provided with a main conveying solenoid valve 21, a main pressure sensor 22, and a flow sensor 23, the blanking connection section 12 is connected with a plurality of blanking devices, and the end of each remote conveying section 13 is provided with a partial pressure sensor 24;
the automatic blanking device is characterized by further comprising a PLC control system, signal output ends of the main pressure sensor 22, the flow sensor 23 and the partial pressure sensor 24 are connected with a signal input end of the PLC control system, and a signal output end of the PLC control system is connected with the main conveying electromagnetic valve 21 and the blanking device.
The blanking device comprises a blanking hopper 31, a blanking connector 32 is installed at the bottom of the blanking hopper 31, the blanking connector 32 is connected with the blanking connecting section 12 of the pneumatic conveying pipeline, and a blanking pneumatic valve 33 is installed between the blanking hopper 31 and the blanking connector 32. The powder material in the blanking hopper 31 enters the blanking connector 32 through the blanking pneumatic valve 33, and then enters the blanking connecting section 12 of the pneumatic conveying pipeline through the blanking connector 32.
The PLC control system is connected with a human-computer interaction interface. The human-computer interaction interface comprises a touch screen or a central control display screen connected with the PLC control system.
When the pneumatic conveying device works, the flow sensor 23 is responsible for detecting the gas flow in the pneumatic conveying process and transmitting signals to the PLC control system, and the PLC control system detects and stores flow signals and judges whether the conveying process is normal or not by comparing the flow signals with a preset normal flow value. The main pressure sensor 22 detects the conveying pressure value of the conveying starting section 11 of the pneumatic conveying pipeline, and the sub-pressure sensor 24 detects the conveying pressure value of the tail end of the corresponding remote conveying section 13 and transmits the conveying pressure value to the PLC control system. When the conveying pressure detected by the main pressure sensor 22 is not reduced all the time in the conveying process and exceeds the conveying normal value, the pipeline blockage is judged. The partial pressure sensor 24 of the respective remote conveying section 13 is now detected. For example, when the pressure value of the partial pressure sensor 24 on the second remote conveying section 13 is not large, but the pressure value of the pressure sensor on the first remote conveying section 13 is large, it is determined that the second remote conveying section 13 of the pneumatic conveying pipeline is blocked, and the corresponding section of the touch screen or the central control display screen of the human-computer interaction interface flashes red. Workers can quickly judge the location of the fault point and remove the fault in time. When the PLC control system judges that the conveying system has a fault, the main conveying electromagnetic valve 21 is closed, and the blanking pneumatic valve 33 is not opened any more and sends alarm information.
The pneumatic conveying fault detection system based on the PLC is applied to an ash conveying system of a dust remover of a steel raw material yard, and workers can quickly judge the location of a fault point when conveying fails, so that faults can be eliminated in time. The timeliness and the stability of the whole stock yard conveying system are protected.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. Pneumatic conveying fault detection system based on PLC, including pneumatic conveying pipeline, its characterized in that: the pneumatic conveying pipeline comprises a conveying initial section, a blanking connecting section and a plurality of remote conveying sections which are sequentially connected together, wherein a main conveying electromagnetic valve, a main pressure sensor and a flow sensor are installed on the conveying initial section, a plurality of blanking devices are connected to the blanking connecting section, and a partial pressure sensor is installed at the tail end of each remote conveying section;
the automatic blanking device is characterized by further comprising a PLC control system, the signal output ends of the main pressure sensor, the flow sensor and the partial pressure sensor are connected with the signal input end of the PLC control system, and the signal output end of the PLC control system is connected with the main conveying electromagnetic valve and the blanking device.
2. The PLC-based pneumatic transmission failure detection system of claim 1, wherein: the blanking device comprises a blanking hopper, a blanking connector is mounted at the bottom of the blanking hopper, the blanking connector is connected with the blanking connecting section of the pneumatic conveying pipeline, and a blanking pneumatic valve is mounted between the blanking hopper and the blanking connector.
3. The PLC-based pneumatic transmission failure detection system of claim 1, wherein: the PLC control system is connected with a human-computer interaction interface.
4. The PLC-based pneumatic transmission failure detection system of claim 3, wherein: the human-computer interaction interface comprises a touch screen or a central control display screen connected with the PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751819.XU CN216376597U (en) | 2021-11-11 | 2021-11-11 | Pneumatic conveying fault detection system based on PLC |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751819.XU CN216376597U (en) | 2021-11-11 | 2021-11-11 | Pneumatic conveying fault detection system based on PLC |
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| CN216376597U true CN216376597U (en) | 2022-04-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115339907A (en) * | 2022-10-17 | 2022-11-15 | 江苏永道科技有限公司 | Intelligent mixed transportation system for powder materials |
| CN116374634A (en) * | 2023-06-07 | 2023-07-04 | 常州海盟塑业有限公司 | Positive pressure pneumatic conveying system |
-
2021
- 2021-11-11 CN CN202122751819.XU patent/CN216376597U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115339907A (en) * | 2022-10-17 | 2022-11-15 | 江苏永道科技有限公司 | Intelligent mixed transportation system for powder materials |
| CN115339907B (en) * | 2022-10-17 | 2023-02-14 | 江苏永道科技有限公司 | Intelligent mixed transportation system for powder materials |
| CN116374634A (en) * | 2023-06-07 | 2023-07-04 | 常州海盟塑业有限公司 | Positive pressure pneumatic conveying system |
| CN116374634B (en) * | 2023-06-07 | 2023-09-29 | 常州海盟塑业有限公司 | Positive pressure pneumatic conveying system |
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