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营口地区位于辽河下游,渤海之滨。为改良利用大片盐碱地种稻,辽河两岸设有发达的水利灌溉网渠。浑浊的辽河水给两岸带来肥沃的淤泥,同时也给渠道造成淤积问题。清淤在本地区早已得到重视。1966年以来十年中我所,先后搞过大中小渠道清淤机三种:仿西德《约克》的半浮式清淤机,仿苏联的拉铲清淤机和现在的12马力毛渠清淤机。前两种机具,因种种原因未能成型。现仅就目前正试验改进的12马力毛渠清淤机研制情况介绍如下。
The Yingkou area is located on the lower reaches of the Liaohe River, on the coast of the Bohai Sea. In order to improve the use of large-scale saline-alkali land, there are well-developed irrigation ditch networks on both sides of the Liaohe River. The muddy Liaohe River brings fertile silt to both sides of the river and it also causes siltation problems to the channels. Dredging has long been valued in this area. In the ten years since 1966, we have successively engaged in three kinds of dredging machines with large, medium, and small channels: the semi-floating dredging machine of the West Germany-like “York”, the Soviet-type dredging dredging machine and the dredging of the current 12-horsepower Maoqu Canal. machine. The first two types of equipment failed to form due to various reasons. The development of the 12-horsepower draft canal dredging machine currently being tested and improved is described below.