INFLUENCE OF HEAT FLOW ON MULTI-FUNCTIONAL ROBOTIC MODULE DURING EXTINGUISHING FIRES IN MINES

D. Rudenko, A. Dominik
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Abstract

Conclusion.Coal is used as a technological raw material in the ferrous metallurgy and chemical industry for the production of mineral fertilizers and plastics, and coal is used as energy raw material for the production of electricity at thermal power plants, for heating residential and public buildings. The unsatisfactory state of the coal industry is due to interaction over a fairly long period of a number of factors, which by their nature have both objective and subjective character. Purpose.In order to enter the market economy, the branch needs restructuring, the main objectives of which are the formation of competitive coal enterprises, the consistent reduction of state support to the enterprises of the industry, the use of less energy consuming extractive equipment, the improvement of safety at work in mines, the provision of trouble-free work, as well as social security of industry workers. Methods. Empirical and theoretical methods. Results. In the event of a fire in the mining area of ​​the mine and subsequent possible destruction of the elements of the bearing structures of the mining shaft, as already noted earlier, in many cases it is necessary to extinguish and rescue. The presence of combustion products makes it difficult to carry out these measures. Combustion products are characterized by a high temperature (over 1000 °C), which leads to the failure of the electronic (control system) and electrical equipment (rechargeable batteries, electric motors) of the robotic module. The heat flux studied also negatively affects the work of the robotic module. According to the technical instructions, rechargeable batteries can only operate at temperatures below 72 ºС. To protect the batteries from the heat flow, they are placed under the protective cover. However, the protective cover over time heats up and begins to heat the internal space of the robotic module, which increases the temperature of the battery. In order to provide the normal working conditions, it is necessary to install an additional insulating layer in addition to the metal cover of the multifunctional module, and from the outside it should be washed with a water solution. Introduction. Based on the calculations of the proposed conditions of torch combustion and experimental studies, it has been established that the time of continuous work of the robotic module is 50 minutes, but when extinguishing in the places of mine workings of the mine, the maneuverability is limited and therefore this time increases. On the other hand, the heat flow should not heat the module within the specified time to the critical temperature achieved by the system of cooling the surface.
矿井灭火过程中热流对多功能机器人模块的影响
结论。在黑色冶金和化学工业中,煤被用作生产矿物肥料和塑料的工艺原料,煤被用作火力发电厂发电的能源原料,用于住宅和公共建筑的供暖。煤炭工业的不理想状态是由于许多因素在相当长的时期内相互作用造成的,这些因素本质上既有客观的,也有主观的。目的。为了进入市场经济,该部门需要重组,其主要目标是形成有竞争力的煤炭企业,持续减少国家对该行业企业的支持,使用更低能耗的采掘设备,提高矿山安全生产,提供无故障工作,以及行业工人的社会保障。方法。实证和理论方法。结果。如前所述,如果在矿井的采区发生火灾,随后可能破坏矿井的支承结构,在许多情况下,必须扑灭和救援。燃烧产物的存在使这些措施难以实施。燃烧产物的特点是高温(超过1000°C),导致机器人模块的电子(控制系统)和电气设备(可充电电池,电动机)失效。所研究的热流也会对机器人模块的工作产生负面影响。根据技术说明,可充电电池只能在72º以下的温度下工作С。为了保护电池不受热流的影响,它们被放置在保护罩下。然而,保护罩随着时间的推移会变热,并开始加热机器人模块的内部空间,从而提高电池的温度。为了提供正常的工作条件,多功能模块除金属盖板外,还需要额外安装一层绝缘层,并从外部用水溶液清洗。介绍。通过对提出的火炬燃烧条件的计算和实验研究,确定了机器人模块的连续工作时间为50分钟,但在矿井作业场所灭火时,由于机动性有限,因此增加了机器人模块的连续工作时间。另一方面,热流不应在规定的时间内将模块加热到系统冷却表面所达到的临界温度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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