挖沙船的构成部分是有挖掘系统，操作部分，减速系统，船体，主架，动力，水下挖掘系统等部分，挖沙船是先将柴油机开动，把离合器拉开，然后发动柴油机，然后再把转速调为正常，将沙子与沙子里面的杂质分开，通过输送带运输出去，在送至岸边。挖沙船适用于水库，河道的砂石分离设备，有柴油机式和电动式两种挖沙船。

   抽沙船适用于在大海，湖泊水库等大区域作业，和挖沙船正好相反，河道疏浚，港口码头清理都是它的强项，它是由抽沙输送系统，排空系统，移动系统，船体构成，先把抽砂泵将沙子抽到船舱，载满后再将船开到岸边，在把沙输送到岸边，该设备操作简单，工作效率高。它们之间的区别是什么呢？

    首先是操作的区域不一样，挖沙船适合在沙子多的地方而抽沙船使用范围广。适合在湖泊，海河，港口等；输送距离不同，挖沙船只能输送近距离的，一般在几十米左右，抽沙船的距离可达到一千米；下水深度不同，挖沙船距离在30米，抽沙船深度在25米以下；以上是统一重工为您介绍的知识。

The difference between sand-excavating ship and large junk
   Sand-excavating constitute part of the ship has the mining system, the operating parts, gear system, hull, main frame, motivation, such as underwater mining system part, sand-excavating ship diesel engine to start the first, is the clutch, and then launch a diesel engine, and then turn speed is normal, separate sand and sand impurities, through the conveyor belt to transport out, in to the shore. Sand-excavating ship is suitable for the reservoir, river sand separation equipment, diesel engine and electric machine has two sand-excavating ship.
    Pump is suitable for large junk in the sea, lakes, reservoirs and other large area, and sand-excavating ship just the opposite, river dredging, port terminals clean are its strengths, conveying system, it is by the pumping sand drain system, mobile systems, hull, put a sand pump on the sand to the cabin, loaded with again after the boat to the shore, in the sand to the shore, the equipment is simple to operate, high work efficiency. What is the difference between them?
    First is the area of operation is different, sand-excavating ship suitable place in the sand and large junk wide use. Suitable for lakes, the haihe river, port, etc.; Transmission distance is different, can be close, sand-excavating ships generally in dozens of meters, smoked large junk distance can reach a kilometre; In different water depth, sand-excavating ship distance 30 meters, pumping large junk 25 meters in depth; The above is heavy industry to introduce knowledge for you.