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Method for sucking up soil or sludge by means of a suction hopper dredge as well as a suction dredge for applying the method
Method for sucking up soil or sludge by means of a suction hopper dredge as well as a suction dredge for applying the method
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机译:通过吸料斗挖泥机吸取土壤或污泥的方法以及应用该方法的吸泥挖土机
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摘要
A method for sucking up soil or sludge by means of a suction dredge provided with a suction pipe having a drag head. Through the suction pipe (1) water and soil or sludge are sucked up. The soil or the sludge is loosened in front of the inlet opening of the drag head. Said loosening operation takes place at such a distance from the inlet opening (4) of the drag head (3) that by the loosening operation the gases being liberated remain substantially out of the suction action of the drag head (3). The loosening is performed by injection nozzles (28) and/or cutting blades mounted in a frame (10) swingably mounted about a horizontal axis (9) on the suction tube (1).
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