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混凝土输送泵的管路清洗

(2009-04-02 09:44:17)
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杂谈

    在清洗输送管路前,最好先泵送0.5-1m3的砂浆,并在全部泵送完后再停机,然后扳动板阀开关,卸掉蓄能器的压力。

  管路清洗有两种方法,即水洗和气洗,不管是水洗或气洗,都要将阀箱体和料斗清洗干净。水洗时,应打开锥管并将其清洗干净,然后将用水浸过的扎成圆柱形的水泥袋和清洗球先后将进已清洗干净的锥管中,再接回锥管和管路,关闭卸斗门,再向料斗注满水(须保持水源不断);泵送水,直到清洗球从输送管的前端冒出为止。水洗,要求切割环和眼睛板(碟阀泵则是板阀与系杆和上下耐磨片)的间隙要小,需有大量的水,严格密封,做到清洗球后的水不向前渗透。在水洗快结束时,要注意管路中的水,不要流到混凝土的浇注地点,经免影响混凝土的质量。此方法操作简单,危险性较小,比较常用。

  气洗,即用压缩空气吹洗,它是将浸透水的清洗球先塞进气洗接头,再接与变径相接的第一根直管,并在管路的末端接上安全盖,(安全盖的孔口须朝下)。气洗时,须控制压缩空气的压力不超过0.8MPa;气阀要缓慢开启,当混凝土能顺利流出时才可开大气阀;气洗完毕后,要马上关闭气阀。

  气洗需要配备空气压缩机,要严格按规定操作,要求管路密封性好,但气洗不可能洗很长的管路,对远距离的管路应分段清洗,此方法操作须谨慎,危险性较大,所以施工人员要远离出口方向,以防止粒料或清洗球飞出伤人。

Transmission pipeline in the washing of the former, it is best to pump the 0.5-1m3 mortar, and finished at all after pumping down, and then pulled on board valve switch, removed the pressure accumulator.
There are two ways to clean pipe, that is, washed and air cleaning, whether it is washing or cleaning gas, the valve should be cleaned tank and hopper. Washing should be open cone tube and cleaned, and then soaked in water for cylindrical水泥袋created and will have to clean the ball into the cone has been clean tube, followed by back cone tube and pipe, turn off Doumen unloading, hopper filled to water (water should be kept constant); pumping water, cleaning up the ball from the front-end pipeline until smoke. Washing, cutting ring and eyes require board (disc valve pump valve is the plate with the tie bar and wear-resistant film from top to bottom) the gap is smaller, there is a large amount of water to be strictly sealed, so to clean the ball forward after the infiltration of water . Quickly washed at the end of the line should pay attention to the water, not to the pouring of concrete into place, as not to prejudice the quality of concrete. This method is simple, less dangerous, more commonly used.
Gas cleaning, which uses compressed air blowing to wash, it is to clean the water to soak into the gas washing ball joints first, followed by the first phase with adjustable straight root, and at the end of pipe connected to the security cover, (Safety of the orifice have to cover down). Gas washing, to control the compressed air pressure of not more than 0.8MPa; valve to open slowly, when the concrete only at the time of the smooth outflow valve opening; gas after washing, it is necessary to turn off the valve immediately.
Gas air compressor is equipped with washing required to operate strictly in accordance with the regulations to require better sealing pipeline, but gas can not wash wash very long pipeline, the pipeline should be on long-range sub-cleaning, this method should be considered carefully, more dangerous, so construction workers want to stay away from export orientation in order to prevent the ball flying out of aggregates or wounding cleansing.

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