深部采矿通风热湿损害试验与模拟研究

IF 0.8 4区 工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY
Zongxiang Li, Yan Liu, Hongjie Zhang, Nan Jia
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引用次数: 0

摘要

研究矿井深部开采高温热害预测与防治问题。应用通风网络分风与围岩的热量交换和质量交换算法,采用淋水巷道风流热交换系数模型。TF1M3D 仿真平台由辽宁工业大学安全科学与工程学院开发。它是一种动态灾害仿真软件,可直观、动态地反映矿井重大灾害发生时通风系统中灾害的扩散和演化过程。基于质能主动风网理论,TF1M3D仿真平台可解决热湿交换、传热传质数值计算等问题。@结合大强矿工程实例,将算法融入矿井网域系统,在MATLAB平台上利用TF1M3D对整个矿井网域系统的风流温度进行仿真求解,并对大强煤矿0306工作面的温度进行预测,提出了制冷降温的仿真方案。模拟结果表明,未来大强煤矿3106工作面最高温度达34.6℃,热害问题严重。在采用的降温方案中,两台制冷机组优于四台制冷机组,两台 250 kW 制冷机组的有效控温范围为 25 至 305 m,降温满足工作面风流温度低于 30℃。结果表明,该方法能准确预测降温后的风流温度和冷源位置,为科学制定降温方案提供了依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Experimental and Simulation Study on Ventilation Heat and Humidity Damage in Deep Mining

Experimental and Simulation Study on Ventilation Heat and Humidity Damage in Deep Mining

To study the problem of predicting and preventing high-temperature heat damage in deep mining of mines. The heat exchange and mass exchange algorithms of the ventilation network parting wind and surrounding rock are applied, and the model of the heat exchange coefficient of the wind flow in the drenching tunnel is adopted. TF1M3D simulation platform is developed by the College of Safety Science and Engineering of Liaoning Technical University. It is a dynamic disaster simulation software that visually and dynamically reflects the disaster spread and evolution in the ventilation system during the occurrence of major disasters in mines. Based on the theory of mass-energy active wind network, TF1M3D simulation platform can solve the problems of heat and humidity exchange, heat and mass transfer numerical calculation and so on.@Combined with the engineering example of Daqiang Mine, the algorithm is incorporated into the mine network domain system, and TF1M3D is used on the MATLAB platform to simulate and solve the temperature of the wind flow of the whole mine network domain system, and predict the temperature of the 0306 working face of Daqiang Coal Mine and put forward the simulation program of refrigeration cooling. The simulation results show that the maximum temperature of the future 3106 working face of Daqiang coal mine reaches 34.6°C, and the heat damage problem is serious. In the adopted cooling program, two refrigeration units are preferred to four refrigeration units, and the effective temperature control range of the two 250 kW refrigeration units is from 25 to 305 m, while the cooling meets the temperature of the working face airflow below 30°C. The results show that the method can accurately predict the temperature of the wind flow after cooling and the location of the cooling source, which provides a basis for the scientific development of the cooling program.

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来源期刊
Solid Fuel Chemistry
Solid Fuel Chemistry CHEMISTRY, MULTIDISCIPLINARY-ENERGY & FUELS
CiteScore
1.10
自引率
28.60%
发文量
52
审稿时长
6-12 weeks
期刊介绍: The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.
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