煤矿副井安全门液压同步问题的研究

煤矿副井安全门液压同步问题的研究Abstract:In coal mines, the safety of personnel and equipment is of primary importan

煤矿副井安全门液压同步问题的研究 Abstract: In coal mines, the safety of personnel and equipment is of primary importance. One critical aspect of safety is the proper functioning of the hydraulic systems that manage the passage of personnel and machines between the main shaft and the sub-shafts. This paper examines the problem of hydraulic synchronization of the safety doors in sub-shafts, which is asignificant issue in coal mines. The research focuses on identifying the causes of synchronization problems, as well as exploring ways to optimize hydraulic systems for better performance, reliability, and safety. Introduction: Coal mining is ahazardous industry with many risks that threaten the lives and livelihoods of workers. Therefore, safety is paramount in all mining operations. One of the critical safety features in coal mines is the hydraulic system that ensures the safe passage of men and equipment between the main shaft and the sub-shafts. The hydraulic synchronization of the safety doors in sub-shafts is asignificant issue in coal mines due to the potential for accidents caused by unsynchronized doors. This paper will focus on the causes of synchronization problems and ways to optimize hydraulic systems to improve performance, reliability, and safety. Causes of Hydraulic Synchronization Problems: In sub-shaft hydraulic systems, the synchronization problem is often caused by the differences in the hydraulic pressure at the two ends of the hydraulic cylinders that control the safety doors. Unequal pressure at the two ends means that the two doors do not close or open simultaneously, and unsynchronized doors pose asignificant risk to miners and equipment. In coal mines, the hydraulic system is exposed to harsh environments that can lead to various problems that affect the synchronization of safety doors. These issues include: 1. Hydraulic fluid contamination: Contamination of hydraulic fluid with impurities such as water, dirt, and metal shavings can cause problems in the hydraulic system, leading to unsynchronized safety doors. 2. Faulty valves: Worn-out valves or incorrectly adjusted valves can cause uneven hydraulic pressure at the two ends of the hydraulic