5G+ Intelligent Coal Mining System

(1) Achievements: 5G communication system, complete set of intelligent coal mining equipment, dispatching centralized control center subsystem and underground centralized control center subsystem.

(2) Achievements: Dispatching centralized control center subsystem: ground dispatching center remotely controls underground coal mining system equipment. Underground centralized control center subsystem: remote control underground coal mining system equipment. Hydraulic support is equipped with electro-hydraulic control system to realize remote centralized control. The shearer has memory cutting function, and the memory cutting rate is more than 60%. The shearer has the control functions of "triangle coal" frame to control coal cutting, straightness detection and anti-collision detection.

(III) Application environment of achievements: coal mining face.

(4) Innovation or achievement features: (1)5G+ optical fiber dual-channel communication system, which can remotely control the shearer, hydraulic support, scraper conveyor, belt conveyor and remote centralized liquid supply system underground and on the ground; (2) Based on the braking and straightening technology of LASC inertial navigation system, a high-precision inertial navigation system is established in the working face to detect straightness and automatically straighten the scraper of the working face, so as to meet the intelligent control of support direction adjustment, up-and-down movement and triangular coal cutting in the working face with large inclination; (3) Personnel safety protection system, the working face is equipped with personnel precise positioning identification card, which can be intelligently locked and controlled with the working face equipment. When people approach the dangerous area of the working face, the hydraulic support is automatically locked, and the shearer automatically sends out an audible and visual alarm and stops to ensure personal safety; (4) Real-time transmission of operating parameters of shearer and scraper through 5G network, and modification of parameters to realize remote fault diagnosis; (5) The unmanned monorail crane along the working face has the functions of precise positioning and intelligent dispatching, and realizes the precise positioning and automatic operation of the locomotive.

(five) the safety, technical and economic benefits created by the results:

(1) In view of the complex environment and many equipment failure points in the coal mining face, in order to improve the working efficiency of the fully mechanized mining face, a 4K high-definition camera and subsystem are integrated, and multi-channel high-definition video data and system signal data are displayed in the dispatching and console, so that the production and control situation of the fully mechanized mining face can be monitored online in real time. It has changed the shortcoming that only part of fully mechanized mining face can be seen in the past, and improved the obstacle clearing efficiency of fully mechanized mining face. It laid a solid foundation for the construction of safe mines. A safety protection system was installed in the on-site coal mining face. When people approach the dangerous area of the working face, the hydraulic support automatically locks, and the shearer automatically sends out an acousto-optic alarm and stops, thus ensuring personal safety.

(2) The intelligent coal mining system has brought advanced equipment and systems, reduced the maintenance demand, optimized the labor organization in time, cancelled the full-time maintenance class, implemented the "maintenance+production" mode, actively promoted the multi-functional management of one post, effectively reduced the ineffective and inefficient employment, from the original 260 to 190, and reduced the number of employees by 40%.

Verb (abbreviation of verb) application

Application location: coal mining face

Achievements: Only 190 people can finish the work at the coal mining face from the original 260 people; From local operation to remote local operation or remote ground operation, remote control is realized.