冠诚钻探抽沙船：
1、工作条件：利用雨天河水流速2厘米/秒以上进行工作。

2、工作原理：利用船动力带动水泵，产生高压水流进入喷水管，通过安装喷水管上的喷水枪射出水流，将沉积河底的淤泥吹搅成混浊的水状，随河水流走，从而起到清淤作用。

3、技术特点：在喷水管设有相通的固定管和活动管，固定管和活动管上各设有喷水枪，活动管与固定管可折叠密封配合。当船行驰至桥墩或较窄河面时，可以将喷水管的活动管折叠起来以方便行驰，而固定管上的喷水枪继续喷射水流。在较宽河面时，则将活动管展开，使活动管与固定管上的喷水枪同时喷射水流来清理淤泥。从而避免了喷水管的长度受桥墩和船体大小限制，操作灵活，大大提高了使用效率和清淤效果。

Guancheng drilling sand pumping:
1, working conditions: the use of rainy river flow velocity of 2 cm / sec or more work.
2, the working principle: the use of ship power driven pumps, generating high pressure water flow enters the water spraying pipe, through the installation of spray gun spray pipe injection water, depositing the slime of the river bed of blowing and stirring into turbid water state, float down the river, thus plays the role of dredging.
3, technical features: the water spraying pipe is provided with a fixed tube and a movable pipe communicated, fixed tube and a movable tube are respectively arranged on the spray gun, the activities of pipe and the fixing tube can be folded seal matching. When the ship runs to pier or narrow river, can spray pipe movable tube folded for easy relaxation, while the spray gun fixing pipe continues to spray water. In a wide river, the active pipe expansion, so that the water spray gun active pipe and the fixed pipe and spray water to clean the silt. To avoid spray pipe length by the pier and ship size limit, flexible operation, greatly improving the efficiency and effect of dredging.