Design and Experiment of Thermal Water and Mechanical Deicing Device

2014 ◽  
Vol 532 ◽  
pp. 311-315 ◽  
Author(s):  
Zi Cheng Zhu ◽  
Xue Jun Zhang ◽  
Guo Liang Mou ◽  
Chao Xin Li ◽  
Jun You

Fast and economical removal of icing snow on the airport runways, road, highways and other roads is a problem for reducing traffic accident rate in frozen weather. Based on the analysis of current researches on various deicing methods, a new deicing method that combines thermal deicing method, water-jet cutting with mechanical deicing technology was presented. This context introduces the construction and working principle of this device, and milling cutting model was constructed, power calculation of milling equipment is also carried out. Subsequently, indoor experiments results was repeated. The feasibility of this scheme is validated by experiments of the compound equipment.

2013 ◽  
Vol 734-737 ◽  
pp. 2746-2751
Author(s):  
Jian Zhao Zhou ◽  
Xiao Pan Xu ◽  
Wei Jun Chu ◽  
Ju Ying Dai ◽  
Yun He Chen ◽  
...  

Determining how to strikingly and environmentally reduce the accident rate on roads in the snow weather, and ensure the traffic flow and safety in the icy district has become a tough issue nowadays. In the context, this article analyzed the series of current research results on different deicing techniques, and presents a new method which combines the thermal water-jet cutting with mechanical-milling deicing technique. It also introduces the structure and working principle of this device, together with the practicality design. The experiments indicate that this device can perform well in deicing work, environmentally friendly and satisfy to the requirements of design.


2013 ◽  
Vol 753-755 ◽  
pp. 1576-1581 ◽  
Author(s):  
Zi Cheng Zhu ◽  
Xue Jun Zhang ◽  
Kun Peng Song ◽  
Xiao Pan Xu ◽  
Si Wei Lai

Fast and economical removal of icing snow on the airport runways, road, highways and other roads is a problem for keeping traffic flowing and driving safety in frozen weather. Based on the analysis of current researches on various mechanical deicing methods, a new mechanical-milling deicing method was presented. The milling cutting model was constructed by improving the cutting model. Subsequently, power design calculation of the milling equipment is also carried out. Through numerical calculation and error analysis, a conclusion that the cutting efficiency correlates only with the speed of deicing mechanism and cutter radius was drawn out. The feasibility of this scheme is validated by experiments of the mechanical milling deicer.


2012 ◽  
Vol 268-270 ◽  
pp. 1288-1293 ◽  
Author(s):  
Jian Zhao Zhou ◽  
Si Wei Lai ◽  
Xiao Pan Xu ◽  
Yun He Chen ◽  
Wei Jun Chu ◽  
...  

Determining how to quickly and economically remove the ice on the airport runways, city roads and bridges is becoming a tough problem to keep the traffic flow and safe in the snow and icy weather. In this context, this paper presents a new method that combines thermal deicing method, water-jet cutting technology with mechanical deicing method, based on analyzing the deficiencies of the existing ice removal methods. Then, it introduces the construction of thermal water-jet and mechanical deicing equipment, mainly the design of thermal water-jet device, and presents the experimental results by repeated indoor experiments. The results indicate that the device can perform well in deicing work, and satisfy to the design requirements.


2014 ◽  
Vol 941-944 ◽  
pp. 1911-1916
Author(s):  
Ai Hua Liu ◽  
Jian Zhao Zhou ◽  
Xiao Pan Xu ◽  
Wei Jun Chu

Transportation always plays a significant role in national economy, of which roads and bridges are the most important facilities. The conditions of the road surface have an overwhelming influence on the traffic flow and road safety, especially in winter and the regions with frequent snowfall, thus closely affected the development of the urbanization and economic prosperity. In view of this, this article has analyzed the characteristics of the existed de-icing technologies, coming up with a new synthetically de-icing method which consists of thermal water-jet cutting with mechanical milling technology. These two kinds of de-icing methods are combined as a set of multi-functional system, in which the thermal water-jet cuts the ice layer into separated sections, and the mechanical milling unit then easily removes the remaining sections out of the road. To obtain the prime influential factors in this new de-icing device, repeated indoor experiments were conducted, which provides some theoretical references to further advance the de-icing efficiency and make structural optimization.


2015 ◽  
Vol 39 (4) ◽  
pp. 783-788 ◽  
Author(s):  
Zicheng Zhu ◽  
Xuejun Zhang ◽  
Qiang Wang ◽  
Weijun Chu

By analyzing the deficiencies of existing de-icing methods, a new de-icing method which combines thermal de-icing with water-jet cutting de-icing technology is coming into being. This paper introduces the construction of thermal water-jet de-icing equipment. Through repeated experiments, the factors which would affect de-icing have been researched and experimentally verified, including jet pressure, nozzle aperture, standoff, and jet injection angles, etc. Analysis of experimental results shows that this device can perform well and satisfy design requirements.


Author(s):  
Battista Grosso ◽  
Valentina Dentoni ◽  
Augusto Bortolussi

AbstractUnderground quarrying is rarely adopted for granite extraction due to the difficulties in the implementation of traditional technologies (drilling and explosive). As alternative to drilling and explosive, the combination of diamond wire and water jet seems to be the most promising available technology. The cutting performance achievable with the water jet technology depends on the operative parameters, the material characteristics and the state of stress within the rock massif. To assess the effect of the state of stress on the cutting rate, laboratory tests have been performed with an oscillating water jet machine on granite samples subjected to a static load. The stress distribution in the layer of rock to be removed has been evaluated by numerical simulation with the FLAC code (Fast Lagrangian Analysis of Continua). The correlation between the results of the cutting tests and the numerical models of the rock samples has been inferred. Starting from a conceptual model, which theoretically describes the relationship between the cutting rate and the stress, a step function was defined that indicates the ranges of stress where predefined values of the cutting rate are workable.


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