Research And Application Of Environment Control Equipment In The Refuge Station Of Guilaizhuang Gold Mine

In order to improve the rescue equipment, safety protection level and emergency rescue capability of non-coal mine. In this paper, the function and technical index of the refuge station were determined, and the environment control system was studied. In addition, the emergency exhaust system and drainage system of waterproof refuge station were put forward. It is expected that the conclusions provide an important basis for the design and relevant standards of the refuge station in the non-coal mine.Through the single factor and orthogonal experiment, the effects of size, length, NaOH, water and additives on the properties of sodium lime were investigated, and the optimum formulation and forming process were determined. Multi-Drive mode air purifier for a refuge station was designed by mine compressed air, a battery and a human as power sources, including gas, electric and manual mode. The flow states in the three operation modes of the purifier were analyzed by fluent numerical simulation. The simulation results were verified by experiments. The reaction kinetics model of CO2 was established based on unreacted core model, and the influence factors of the reaction rate were analyzed by the model.In this paper, the technical parameters and internal structure of ice storage refrigeration system were studied. The calculation formula for the minimum circulating wind speed was proposed. The refrigeration performance of the storage refrigerator was tested by experiment, and the effect of different remaining ice on the cooling power was analyzed. The influence laws of the vortex tube performance caused by operating parameters (including inlet pressure, environment temperature and thermal valve opening degree) were studied through experiment. The application style and noise reduction processing of vortex tube were determined. The potassium superoxide reaction kinetics model was established based on potassium superoxide chemical reaction characteristics by experiment, and the reaction mechanism was discussed. According to characteristics of the potassium superoxide pill on sintering andmelting, lower utilization rate and the initial reaction rate, and mismatched human respiratory quotient, the optimization and new air regeneration device were carried out by chemical experimental.The reliability and stability of the inner system and environment control equipments were verified by 50 miners for 48h in the refuge station. The internal environment parameters and the activity state of the test personnel were analyzed. The O2 consumption, CO2 production and respiratory quotient were obtained in different activities, time quantum and O2 concentration. On the basis, the minimum air supply volumes for the survival of test personnel were determined. It is expected that the conclusions provide the experimental basis for the relevant standards of emergency rescue.