【作者】 潘黎；

【导师】 朱能；

【作者基本信息】 天津大学 ， 供热、供燃气、通风与空调工程， 2007， 硕士

【摘要】 随着矿井深度的增加,矿井高温热害问题会越来越严重。开采深度越大,岩石温度越高。就世界范围来看,矿井高温热害的主要因素有地热、采掘机电设备运转时放热,运输中的矿物和矸石放热、以及风流下流时自压缩放热等四大热源。就个别矿山而言,矿内高温水的涌出、强烈氧化等也可能形成该矿高温热害的主要因素。另一方面,矿井工作面空气含尘也是一个亟待解决的问题,煤矿井下粉尘是在煤矿井下生产过程中产生的微细煤尘和岩尘,对人体和生产安全也有很严重的危害。因此我们必须努力解决矿井高温和空气含尘的问题。本文对矿井降温除尘系统进行了论述,重点对更加适合井下工作面的新型降温设备的降温和除尘进行了详细测试。通过模拟井下的工况,包括空气温度,含湿量,含尘浓度,采取相似的粒径分布,测试在不同的通风量,不同的喷淋量的情况下,实验设备的降温和除尘效果。对于测试结果进行分析,然后提出解决和改进方案。该设备采用喷淋水雾的方式实现了降温和除尘一体化,旨在解决现有设备存在的各种弊端,使其能真正的适应矿井这一特殊高温高湿环境。作为矿井工作面新型设备的研制,关键在于它的可行性,也就是要适用于实际的矿井生产,为模拟设备矿井内实际应用效果以及进一步发现问题、解决问题,最终使设备达到最优化提供了有效的平台。更多还原

【Abstract】 With the developing of mine depth, the problem of high temperature and high humidity becomes more and more serious. The deeper the exploring depth is, the higher the temperature is. In a worldwide sight, the main factors leading to mine’s high temperature and high humidity harm are below: earth heat, the heat of running machine, the heat of mine material on transport, the self-condensing heat of air when falling. To some particular mine, the springing of hot water, strong oxidant also contribute to the harm.On the other hand, the dusty air is another problem which is in an urgent need to solve. The dust air is mainly formed of micro coal dust and rock dust,which has a direct harm to the body health and working safety. Thus it is no delay to release the problem of high-temperature and air dusty.This paper focuses on the testing of the experiment platform about the cooling and dust-removal ability. To certify the possibility of putting it into the practical mine work. By monitoring the condition of mine working face, including the temperature, humidity, dust concentration and the similar particle diameter distribution, through the changing of conditions, we can get the concrete result about the air-conditioning and dust-removal capacity, then finding out the way to imprve the situation,.The equipment can reach the efforts of cooling and dust-removal at the same time, thus it can get used to the condition of mine which has a special high temperature and humidity. The experiment platform is built, and after the testing, we find out the problem and the points should be developed, then improve its capacity in order to make it fit the mine work perfectly.更多还原