Remote control system for intelligently monitoring material deposition in pipeline in pneumatic conveying

A pneumatic conveying and intelligent monitoring technology, applied in the direction of conveying bulk materials, conveyors, transportation and packaging, etc., can solve the problems of increased measurement data error, complex deposition detection terminal, and inability to apply large output, etc., to achieve long output distance, Easy installation, convenient remote monitoring effect

Pending Publication Date: 2020-03-24
HEBEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are few structures on the market that monitor material deposition in pipelines in pneumatic conveying. Most of the detection of material deposition is manual detection, and there are also long-distance wireless detections. For example, a Chinese patent (patent No. A remote monitoring system and detection method for the amount of fine dust deposition. Based on the photoelectric effect, a Fresnel lens is installed at the bottom of the dust collection tank, and the weight of the dust accumulation is converted into dust according to the in

Method used

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  • Remote control system for intelligently monitoring material deposition in pipeline in pneumatic conveying
  • Remote control system for intelligently monitoring material deposition in pipeline in pneumatic conveying
  • Remote control system for intelligently monitoring material deposition in pipeline in pneumatic conveying

Examples

Experimental program
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Example Embodiment

[0041] Example 1

[0042] This embodiment is a remote control system for intelligently monitoring material deposition in pipelines in pneumatic conveying (see Figure 1-4 ), including: double casing 1 , deposition detection terminal 2 , wired communication module 3 , main controller 4 , wireless communication module 5 , cloud server 6 , and mobile phone client 7 . The deposition detection terminals 2 are laid on the lower pipe wall at the bottom of the double casing 1, and the distance between two adjacent deposition detection terminals 2 is set to 2m. The deposition detection terminal 2 is connected with the main controller 4 through the wired communication module 3, the wired communication module 3 adopts the 485 bus, the main controller 4 is connected with the cloud server 6 through the wireless communication module 5, the wireless communication module adopts the Lora wireless module, and the cloud server 6 It is also connected with the mobile phone client 7 through the wi...

Example Embodiment

[0054] Example 2

[0055] The positions and connection relationships of each part in a remote control system for intelligently monitoring material deposition in pipelines in pneumatic conveying in this embodiment are the same as those in Embodiment 1 (see figure 1 ). The difference is that the outline shape of the capacitive antenna 21 is changed to a circular outline structure (see Figure 7 ), and the insulating sheet 22 has the same size as the capacitive antenna 21, has a diameter of 20 cm, can be freely bent, and is connected to the bottom of the pipe by welding. The capacitive antenna 21 can satisfy S 11 A requirement that is positively related to the thickness of the deposited layer. In this embodiment, the distance between two adjacent deposition detection terminals 2 is set to 3m. The round profile is easy to install and fits better with the inner wall of the pipe.

[0056] The system in this embodiment can wirelessly monitor the deposition amount at multiple mon...

Example Embodiment

[0057] Example 3

[0058] The structure of this embodiment is the same as that of Embodiment 1, the difference is that the structure of the deposition detection terminal in this embodiment is: the width of the insulating sheet 22 and the capacitive antenna 21 is 1 cm, the length is 2 cm, and they are placed in a straight pipe section with a pipe diameter of 2 cm. . Using the structure in this embodiment, the total integral occupied by the material (solid phase) is 0.12 to carry out a pneumatic conveying simulation experiment, which is used to fit the relationship between the capacitance and the deposition quality,

[0059] Figure 8 Shown is the relationship between the measured capacitance of the capacitive antenna 21 and the deposition quality of the material particles. It can be seen that the capacitance value increases with the increase of the deposition quality of the material particles, and the relationship between the capacitance and the deposition quality is obtained ...

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Abstract

The invention discloses a remote control system for intelligently monitoring material deposition in a pipeline in pneumatic conveying, which comprises a main controller, a wireless communication module, a cloud server, a deposition detection terminal and a mobile phone client, wherein the deposition detection terminal is laid on the lower pipe wall of the bottom of a double-sleeve pipe and is connected with the main controller; the main controller communicates with the cloud server through the wireless communication module; the deposition detection terminal comprises a capacitive antenna, an insulating sheet and a measuring unit; the ratio S11 of incident power to reflected power of a signal source output by the capacitive antenna is positively correlated with the thickness of a depositionlayer in a pipe, the insulating sheet is tightly attached to the bottom of the pipe, the capacitive antenna is fixed to the insulating sheet, the grounding end of the capacitive antenna is directly fixed to the bottom of the pipe, and the bottom of the pipe is grounded; the feed end of the capacitive antenna is led out of the pipe wall through a wire to be connected with a chip pin in the measuring unit, and the measuring unit is connected with the main controller through an SPI interface. The system can detect the deposition amount of the double-sleeves pipe in unit area in real time.

Description

technical field [0001] The invention relates to the technical field of pneumatic conveying, in particular to a remote control system for intelligently monitoring material deposition in pipelines during pneumatic conveying. Background technique [0002] Pneumatic conveying has been widely used in industrial fields such as electric power, food, mining, metallurgy, chemical industry and pharmaceuticals, especially in thermal power plants, when using double casings to convey granular materials, it can achieve large output of materials and long-distance transportation . However, it is impossible to monitor the material deposition in the pipeline in real time during the transportation process. When the material deposition is too serious, it cannot be dealt with in time. In severe cases, the system will be completely paralyzed and the safety of the equipment will be endangered. In order to ensure the safe operation of conveying facilities, convenient and effective material deposit...

Claims

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Application Information

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IPC IPC(8): B65G53/66
CPCB65G53/66
Inventor 王进李彦鑫宋涛朱恒宣陈占秀李子甲李新生
Owner HEBEI UNIV OF TECH
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