The invention relates to a self-rotating lifting mud discharging device. The mud discharging box pipeline is composed of intake pipe, intake pipe and discharge pipe. The circular platform of the self-rotating lifting mechanism is equipped with an integral box pipeline. The integral box pipeline is connected with racks. The racks are connected with reducers through gears, and the reducer drives the racks to lift or lower the integral box pipelines integrally through gears. One side of the surface is connected with an oil cylinder, which forms a rotating mechanism with a round table. According to the principle of air suction, the mud lifting height below the water surface is provided by the natural water pressure of the water level in the well body, and the lifting height above the water surface is provided by the exhaust volume of the intake pipe. The advantages of the high water level in the well during the undrained sinking construction of the open caisson are fully utilized, and the mud suction efficiency is greatly improved. To improve the efficiency of sludge flushing and suction, the equipment can spin by using integral mechanical walking, combining with the needs of the site, and fully crush the designated parts of the caisson to extract soil.
【技术实现步骤摘要】
自旋提升式出泥装置
本专利技术涉及一种沉井不排水下沉工艺中,可在大深度水位下进行破土出泥的设备,尤其是一种自旋提升式出泥装置。
技术介绍
沉井是一种地面上制作井筒,通过井内取土使之下沉至地下预定深度的地下结构,当沉井采用不排水下沉时,通常采用吸泥泵、抓斗或空气吸泥机等设备取土。沉井下沉深度过大时,不排水下沉井内水深过大,井底水压力较大,采用常用的吸泥泵,其密封性无法承受较高的水压力,导致吸泥泵密封失效损坏,采用特制高密封性吸泥泵时,由于泵体需将泥浆提升较高的高度,造价过于昂贵,经济性不强。采用常用的抓斗取土时,抓斗施工效率随着井体下沉深度的增加而逐渐减小,且水深过大时,抓斗受水压影响,抓取力也将不足,大幅降低取泥效率。采用常用的空气吸泥机吸泥时,利用空气吸泥原理,空压机功率仅提供水面以上泥浆提升高度需求,水面以下泥浆提升依赖于井体内水体水压提供,但常用的空气吸泥取土需配备一台辅助起重吊机始终配合吊放管路,排泥管外缠绕进水管、进气管及各类控制电路,管路众多,较为杂乱,并结合井内取泥点位的移动,需井上及井下较多操作人员协同作业,缺乏整体性。
技术实现思路
本专利技术是要提 ...
【技术保护点】
1.一种自旋提升式出泥装置,包括自旋提升机构、出泥箱式管道,其特征在于:所述出泥箱式管道由进气管、进水管、排泥管组成,所述进气管、进水管与排泥管组合为整体箱式管道,由进水管对沉井底部土体进行冲刷破碎,所述进气管下口横向连通排泥管,利用进气管向排泥管中输入高压气流,气流向上串流,形成真空,利用虹吸原理,将井底泥浆通过排泥管排除井外;所述自旋提升机构由齿轮、齿条、油缸、减速机、圆台组成,所述圆台中间装有整体箱式管道,整体箱式管道连接齿条,齿条通过齿轮连接减速机,由减速机通过齿轮驱动齿条整体提升或下放整体箱式管道;所述圆台上面一侧连接有油缸,油缸与圆台形成转动机构,可使整体箱式管 ...
【技术特征摘要】
1.一种自旋提升式出泥装置,包括自旋提升机构、出泥箱式管道,其特征在于:所述出泥箱式管道由进气管、进水管、排泥管组成,所述进气管、进水管与排泥管组合为整体箱式管道,由进水管对沉井底部土体进行冲刷破碎,所述进气管下口横向连通排泥管,利用进气管向排泥管中输入高压气流,气流向上串流,形成真空,利用虹吸原理,将井底泥浆通过排泥管排除井外;所述自旋提升机构由齿轮、齿条、油缸、减速机、圆台组成,所述圆台中间装有整体箱式管道,整体箱...
【专利技术属性】
技术研发人员:张海锋,徐英武,徐杰,汤晓俊,王涛,徐玉夏,熊菲,
申请(专利权)人:上海市基础工程集团有限公司,
类型:发明
国别省市:上海,31
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