大型耙吸船高效挖掘黏土专用耙头的研发
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摘要
针对大型耙吸挖泥船在挖掘硬质黏土时,遇到耙齿难以入土、堵耙和闷耙等问题,通过对大型耙吸挖泥船的原始耙头模型进行研究,采用为耙头配置特殊高压(最大压力为38 MPa)冲水系统的方法,增加了三道高压冲水辅助装置及设计合适喷嘴,成功开发了高效黏土型耙头,有效解决了耙头堵耙、闷耙等问题,提高了船舶施工效率,为类似问题提供参考。
In view of the problems such as drag teeth is hard into the soil,drag head is blockage and shutdown when the large trailing suction excavate stiff clay, we adopt special high-pressure flushing system( maximum pressure 38 MPa),add three high-pressure flushing auxiliary device,and design the suitable injectors in the drag head based on the original drag head model of the large trailing suction hopper dredger. The drag head for high efficiency excavating clay has been successfully developed,which effectively solves the problem of drag head blockage and shutdown, and raises the efficiency of trailing suction hopper dredger construction. It can provide the reference for similar problems.
In view of the problems such as drag teeth is hard into the soil,drag head is blockage and shutdown when the large trailing suction excavate stiff clay, we adopt special high-pressure flushing system( maximum pressure 38 MPa),add three high-pressure flushing auxiliary device,and design the suitable injectors in the drag head based on the original drag head model of the large trailing suction hopper dredger. The drag head for high efficiency excavating clay has been successfully developed,which effectively solves the problem of drag head blockage and shutdown, and raises the efficiency of trailing suction hopper dredger construction. It can provide the reference for similar problems.
引文
[1]杨年浩,倪福生,孙丹丹.高压水射流技术发展及其在疏浚工程中的应用[J].采矿技术,2006,6(1):67-68+72.
[2] VANDYCKE S. Dredging stiff to very stiff clay in the Wielinggen using the dracula system on a hopper dredger[J]. Terra et aqua,2002(12):3-8.
[3]洪国军,王健,林风.自航耙吸挖泥船耙头模型试验研究[J].中国港湾建设,2008(4):19-22+86.
[4]沈伟平,孙雪梦,赵学,等.耙头高压冲水改进技术[J].水运工程,2012(3):159-162.
[5]侯凌云,侯晓春.喷嘴技术手册[M].北京:中国石化出版社,2007.
[6]易灿,李根生.喷嘴结构对高压射流特性影响研究[J].石油钻采工艺,2005,27(1):16-19+80.
[2] VANDYCKE S. Dredging stiff to very stiff clay in the Wielinggen using the dracula system on a hopper dredger[J]. Terra et aqua,2002(12):3-8.
[3]洪国军,王健,林风.自航耙吸挖泥船耙头模型试验研究[J].中国港湾建设,2008(4):19-22+86.
[4]沈伟平,孙雪梦,赵学,等.耙头高压冲水改进技术[J].水运工程,2012(3):159-162.
[5]侯凌云,侯晓春.喷嘴技术手册[M].北京:中国石化出版社,2007.
[6]易灿,李根生.喷嘴结构对高压射流特性影响研究[J].石油钻采工艺,2005,27(1):16-19+80.