| 摘要 |
The invention relates to an apparatus for comminuting rock, wood, clay and other material deposits at the same time as extracting sand/gravel bulk materials or the like deposited under water, by continuous or intermittent compressed-air feed by means of delivered pressure medium or vacuum. The apparatus also has an integrated cutting and loosening device. In order to ensure that continuous delivery can be achieved, delivery capacities can be substantially increased, functions can be optimally improved, and wear, energy and operating hours can be saved by such an apparatus compared with the prior art in pipe-dredging technology, this apparatus is distinguished by the following features: a) one or more crusher segments connected by articulated devices and driven to the outside and at the bottom for cutting the material are arranged opposite one another in order to simultaneously comminute oversize to make it capable of being transported by pipe; b) preferably two material orifices 10 and 12 or 11, connected to the crusher segment, for continuous further delivery of the material; c) optimally placed material orifices 10, 11, 12 while utilising the digging and gripping movements of the crusher segments 5. <IMAGE>
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