| ABSTRACT:To develop the technique of artificial cooling in the process of deep mining, based on the theory of water utilization, put forward in the deep or ultra deep well mining mining working face adopts hydraulic drive fan (local), realize high combined the idea of ventilation cooling, and has been successfully trial-produced a laboratory prototype. Hydraulic ventilation in engine prior to field application test, water is the key factor, is a fan of the power source, and ventilation heat carrier play a cooling efficiency of the cold, wet dust removal or device lotion. Based on this, in this paper, the deep mining mine of the existing water supply and drainage system and water conditions were studied. The main work are as follows:(1) On the basis of studying the early stage of the research, this paper introduces the working principle of ventilation in hydraulic engine, hydraulic ventilation are analyzed from the points of view of energy conversion in a heat engine, hydraulic ventilation for heat engine is divided into power system, mechanical energy conversion system, gas-liquid heat exchange system, drainage system four energy subsystem, find evaluation index of various energy subsystem performance good or bad.(2) The selected volume, wind speed, dry bulb temperature drop, refrigerating capacity, the first in the thermal efficiency as the main output parameters of ventilation in hydraulic engine, water quantity, water pressure, water temperature, water quality as the main water parameters of ventilation in hydraulic engine. In view of these parameters, the design of the hydraulic ventilation in heat engine under the condition of the laboratory simulation of hydraulic ventilation in the determination of engine performance parameters of the improved experiment. Through the experiment, the measured hydraulic ventilation in engine performance parameters.(3) According to the experimental data, the paper analyzes the running state of the improved prototype. Reserved for device problems such as small volume, power efficiency analysis error is larger and the shortage of the fan static pressure, analyses the causes of the problems of prototype, form a further solution.(4) Analysis of the hydraulic ventilation in engine water requirements, based on the assumed conditions, established the hydraulic ventilation in engine main water parameters and output parameters of the mathematical relationship. By using the experimental data, established the hydraulic ventilation in engine there is a statistical relationship between the above parameters.(5) According to literature and field data, analyzes the deep or ultra deep well water in mines, and calculate the amount of water. Analyses the composition of water deep mining mine project, find out the deep mining of mine water place. Study the deep mining of water supply and drainage system in mines, summarizes the types and function of the water supply and drainage pipe network, and a hydraulic and water calculation was carried out.(6) Based on the deep mining the composition of mine water, water engineering, water supply and drainage system the result of the study, analyses the source of the hydropower resources in deep mines, to calculate the reserves of hydropower resources; The form of the hydropower resources are analyzed, application mode and availability, which can be used in the hydraulic ventilation is analyzed emphatically in engine hydropower resources, and the related calculation. What is specific to the equipment, has been clear about the water in the hydraulic ventilation in engine can be used to advantage in field application test, and easy to use.(7) Analysis of the laboratory simulation experiments and field application test, summarizes the hydraulic ventilation in engine for field application test required by the test conditions. Combined with field data collected from some deep mines, analyses the ventilation in hydraulic engine in field application experiment was carried out, may appear, are faced with the problem.(8) According to the analysis result, and puts forward the idea of gradual field application experiment was carried out in phases, the first step of ventilation in hydraulic engine field application test in the test plan. In field application stage, but also can be improved and the dehumidification, dust and other issues. |
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