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    分析:挖沙船的潤滑油該如何選用?

          挖沙船具有成本低、工作效率高、操作方便等特點,可同時完成對沙石的抽取、過濾篩選及分離等工序??梢砸淮涡陨a出合格的產品,尤其針對水面寬闊且水下資源豐富的河道、池塘及廢棄的挖沙廠更是特別的適合采用挖沙船進行挖沙作業。挖沙船的種類很多,從挖沙方式上可分為機械挖沙和吸揚式挖沙兩大類。挖沙機械比較笨重,不像其他小型機械那樣靈活,潤滑油可以使挖沙船的各部件能夠更好的協調運行,因此我們更加要注意潤滑油的選用。

    挖沙船

          挖沙船多半采用露天作業,我國北方地區的冬夏季溫差變化較大,有的地方晝夜溫差變化也很大,因此我們要選用粘度隨溫差變化較小的潤滑油。潤滑油的黏度隨溫差變化小,可以形成很好的潤滑油膜,對挖沙船的各部件起到很好的潤滑作用,以避免挖沙船啟動、運轉困難。

          如果在火災或者爆炸事故易發的地段作業,挖沙船一定要使用抗燃性好的潤滑劑,不能使用易燃的機油或者柴油代替潤滑油。同時潤滑劑必須對挖沙船的密封件有著良好的適應性,以防止密封件受到潤滑劑的氧化損壞。

       Dredging boat has the advantages of low cost, high working efficiency, convenient operation and so on, and it can complete the process of extracting, filtering and separating sandstone. Can produce a one-time qualified products, especially for the water wide and underwater resources of the river, pond and abandoned sand digging plant is particularly suitable for dredging sand work. There are many kinds of dredging sand, which can be divided into two categories: mechanicaldredgingandsuctionsuckingsanddigging.Sanddigging machinery is more bulky, unlike other small machinery as flexible, lubricants can make the parts of the dredgingboatcanbebettercoordinatedoperation,soweshouldpayattentiontotheselectionoflubricants.

       Dredging most of the sand use open-pit operation, the northern region of China's winter and summer temperature changes are larger, and some places the diurnal temperature difference is also very large, so we have to choose viscosity with the change of the small temperature of lubricants. The viscosity of lubricating oil varies with the temperature difference, can form a good lubricant film, to dig the various parts of the sand to play a good lubrication role, to avoid dredging sand start, difficult operation.
    If in the fire or explosion accidents prone to the lot work, dig sand must use a good flame resistant lubricants, can not use flammable oil or diesel oil instead of lubricants. At the same time, the lubricant must have a good adaptability to the sealing parts of the dredging vessels to prevent the oxidation of the seals from the lubricant.


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