On June 12, the new suspended mining single hydraulic prop independently developed and produced by China Coal Group was sent to Shanxi, Inner Mongolia and other places, which once again set off a sales frenzy.
What are the detection methods of broken belt signal of belt conveyor?
Views: 0 Author: Site Editor Publish Time: 2022-09-27 Origin: Site
The occurrence of belt breaking accident of belt conveyor is random, which brings great difficulties to the detection of belt breaking signal. At present, the detection methods of belt breaking signal are mainly as follows:
Belt speed detection method
After the conveyor belt breaks, the speed of the upper and lower branches of the conveyor belt will have a large difference. Set up multi-point detection of the belt speed of the upper and lower conveyor belts, and send the belt breaking signal through the comparator.
Tension detection method
Generally, it is judged by detecting the tension force of the drawing device. The tension device of the belt conveyor is generally arranged at the head. When the belt breaks, the tension force of the tension device will be greatly reduced, which is used as a signal to judge the occurrence of the belt break.
Overhang detection method
Install the protective device switch on the idler frame with appropriate spacing along the conveyor. When the conveyor operates normally, the tensioning device will ensure that the belt sag is less than the minimum value. When the belt breakage accident occurs, the belt sag will increase. When the belt sag exceeds the set value, the opening and closing action will send the belt breakage signal at the same time.
Magnetic field change detection
The coil is embedded in the belt of the belt conveyor, and magnetic field generating and receiving devices are placed on the top and bottom of the belt respectively. When the conveyor operates normally, the coil in the magnetic field generates an additional magnetic field, and the magnetic field detected by the magnetic field receiving device is basically constant. When the belt breaking accident occurs, the coil in the belt conveyor is damaged, so the additional magnetic field changes, and the detection device detects this change, so as to obtain the belt breaking signal.
Most of the above detection methods of broken belt use electric signals as the signals of broken belt, which are easy to be interfered, and the detection principle is not very reliable, which is easy to cause misoperation.
LATEST NEWS
MORE ABOUT OUR NEWS
China Coal Group Ships A Batch Of Mining Flat Trucks To Wenzhou
11 June 2024
On June 11, a batch of high-performance mining flat trucks independently researched and produced by China Coal Group was about to embark on a journey, and its destination was Wenzhou City, Zhejiang Province, a coastal city in eastern China. This is not just an ordinary transportation of commodities, but the interplay of industrialized power and the pulse of the new era of development.
China Coal Group Holds The First Half Of 2024 Business Analysis Meeting
08 June 2024
On June 8, the first half of 2024 business analysis meeting of China Coal Group was grandly held in the meeting room of the Group's headquarters, mainly focusing on the 321 strategic objectives formulated by the Group, comprehensively sorting out and summarizing the first half of the production and operation of the work situation, analyzing the causes of the problem, solving the problems and deficiencies in the current operation and sales work, judging the business situation and discussing the ideas and countermeasures, and arranging and deploying the work in the second half of the year. General Manager of China Coal Group Han Yong, members of the leadership team, general managers of e-commerce companies, plant managers of the Manufacturing Corporation, group companies and the heads of functional departments of more than 70 people attended the meeting.
Shandong China Coal Mining Support Equipment Co., Ltd. was founded in the 1990s with more than 1100 employees. It now has 53 professional companies, 3 Hong Kong companies, 1 British Cayman company and 1 American company. It is a large diversified industrial group integrating intelligent equipment manufacturing, e-commerce, software research and development and intelligent logistics, which is cultivated and supported by the Ministry of industry and information technology, the Ministry of Commerce, the development and Reform Commission, Shandong Province and Jining City.
