Liang is an indispensable product for promoting the deep integration of informatization and industrialization. Industry key technologies. The vision of the intelligent development of coal mines is to realize the Real-time perception of spatio-temporal multi-source information and risk closed-loop control are intrinsically safe. Intelligence should have three elements: ①Real-time perception of external information and the ability to acquire; ②Based on the storage, analysis, judgment, and Association and self-learning, self-decision-making ability; ③Automatic decision-making based on self-decision Execution ability.

It can be seen that the sensor is not only the perception basis of coal mine production, but also it is the digital cornerstone of intelligent mine construction. In the current intelligent coal mine construction. In the context of the research and development of sensors is to enhance the intelligence of coal mines. An effective way to achieve the level of production.

In this paper, from two perspectives of production equipment monitoring and environmental safety monitoring. The application of sensors in coal mine production is studied, and its use is analyzed. Use the current situation, on this basis, combine the technological development and intelligence of the sensor. According to the construction needs of mines, four key development directions of sensors are proposed.

1 Classification of sensors used in coal mines

Coal mine production is a large amount of coal and gangue from the coal mine face

Mined and transported to designated locations. A large number of machines are used in the production process.

Machinery and equipment such as shearers, conveyors and mining trucks. At the same time, coal

Mine production also needs to face complex geological environments, such as gas and underground surges water etc. Therefore, the application of sensors in the coal mine production process not only involves.

Production equipment monitoring, including environmental safety monitoring.

Coal mine production sensors can be divided into production equipment monitoring and environmental.

There are two types of environmental safety monitoring, as shown in Figure 1. Production equipment monitoring according to work.

The art system is divided into mining system, transportation system, ventilation system, water supply and drainage system and power supply system. Environmental safety monitoring is divided into geological environment monitoring and atmospheric monitoring.

Application of Sensors in Coal Mine Production Equipment Monitoring

With the large-scale investment of large-scale equipment in coal mining, coal mine production

Industrial sensors also have higher requirements. Production equipment monitoring sensor.

The detector is mainly used to measure the production parameters of coal mines to ensure safe operation. Collect; perceive the operating status of the equipment, so as to make progress when problems occur maintenance.

(1) Coal mining system

Commonly used equipment in the coal mining system mainly includes bucket wheel excavation in open pit mines Shearers, rock bolters, integrated bolters and hydraulic bracket etc.

The application of sensors in the coal mining system includes: ① displacement, coal seam inclination

Angle, rocker swing angle, emulsion concentration, stress and rail pressure and other working parameters. Monitoring; ②Temperature, flow, speed, vibration, current and equipment start and stop, etc.

Equipment operation status monitoring.

(2) Transportation system

The transportation system is to transport coal and gangue out of the working face, open-air

Coal mines often use mining trucks, underground mines use some roadways, and belt

Conveyors and elevators. The main equipment includes scraper conveyor, Loaders, elevators, belt conveyors and transport vehicles, etc.

The applications of transportation system sensors include: ① temperature, speed, vibration

Monitoring of working parameters such as motion, current, tension, conveyor belt tearing and deviation;

②Coal flow status monitoring such as temperature, weighing, coal stacking and composition detection.

epilogue

This paper systematically summarizes the current sensors used in coal mine production

The status of the application of sensors combined with new technologies in smart mines

Prospect of application, scientific planning of production perception system for coal enterprises

It provides strong support and can effectively improve the perception of smart mines

The rationality and forward-looking of the system construction have strong practical significance.