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Scraper conveyer detecting device and method

A technology of scraper machine and scraper, which is applied in the direction of conveyors, conveyor objects, conveyor control devices, etc., can solve the problems of coal mine production benefit economic loss, failure to protect equipment failure, chain damage, etc.

Inactive Publication Date: 2015-11-11
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference and particularity of the operating conditions of the scraper machine in the coal transportation system, the common protection method cannot effectively protect the equipment failures of the system, especially the broken chain fault, chain jump fault and scraper machine fault of the scraper machine. fracture fault
Once the chain jumping accident cannot be detected in time, the scraper is easily stuck on the runway in the lower groove, resulting in chain breakage, and if the chain breakage accident is not found in time, the broken chain of the scraper machine will wrap around the driving wheel, causing a large number of chains to be damaged, and at the same time cause Coal running and coal pile accidents, resulting in large economic losses
At the same time, the fracture of the scraper will also seriously affect the mine production, which will bring economic losses to the production efficiency of the coal mine. In severe cases, it may lead to production stoppage.

Method used

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  • Scraper conveyer detecting device and method
  • Scraper conveyer detecting device and method
  • Scraper conveyer detecting device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The scraper device is installed on the head of the scraper during measurement, so as to prevent the magnetic sensor from being damaged by the objects transported on the scraper during operation.

[0036] figure 2 A structural block diagram of a scraper detection device according to another embodiment of the present invention is shown. Such as figure 2 As shown, in this embodiment, the magnetic sensitive sensor 10 may include four magnetic sensitive sensors, which are respectively: a first magnetic sensitive sensor 11, a second magnetic sensitive sensor 12, a third magnetic sensitive sensor 13 and a fourth magnetic sensitive sensor 14. The displacement encoder 40 may include two displacement encoders, namely: a first displacement encoder 41 and a second displacement encoder 42 . The control device 30 may include: a subtractor 31 , a signal processing circuit 32 and an embedded chip 33 . In addition, the scraper detection device may further include a display device ...

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Abstract

The invention relates to the field of scraper conveyer detection and discloses a scraper conveyer detecting device and method. The normal component of a magnetic signal in a stress concentration area of a scraper is acquired through magnetic sensors, whether the scraper of a scraper conveyer is to be broken or has been broken is judged according to the intensity of a gradient signal of the normal component, the distances between distance measuring sensors and the scraper are measured through the distance measuring sensors, and whether chain falling or chain breaking occurs to the scraper is judged according to the distances. By the adoption of the scraper conveyer detecting device and method, maintenance staff can be informed in time for maintenance when the scraper is broken or to be broken or chain falling or chain breaking occurs to the scraper, and then accidents such as coal leakage and coal piling are prevented.

Description

technical field [0001] The invention relates to the field of scraper detection, in particular to a scraper detection device and detection method. Background technique [0002] The scraper machine is widely used in the coal mine industry and the coal power industry, especially the coal handling system of the coal preparation plant. Due to the difference and particularity of the operating conditions of the scraper machine in the coal transportation system, the common protection method cannot effectively protect the equipment failures in the system, especially the broken chain fault, chain jump fault and scraper machine fault of the scraper machine. fracture failure. Once the chain jumping accident cannot be detected in time, the scraper is easily stuck on the runway in the lower groove, resulting in chain breakage, and if the chain breakage accident is not found in time, the broken chain of the scraper machine will wrap around the driving wheel, causing a large number of chai...

Claims

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Application Information

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IPC IPC(8): B65G19/22B65G43/02
Inventor 苗圆圆苗继军刘波范忠明孙杰苏金元徐永峰张学忠王俊伟刘洋吴江高永利吴慧平
Owner CHNA ENERGY INVESTMENT CORP LTD
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