Dredger actuated from land

Abstract

Drag dredger, for the extraction and cleaning of sediments in bays, port accesses, navigable channels, docks, watercourses, lakes or reservoirs, equipped with means for excavation, dragging and removal of bottom and means to regulate and support, with a driving force that is made from land, which facilitates the extraction of sediments directly onto land and immediately leaves a flat surface on the sea-bed. This is done by regulating the excavation means as well as the cutting depth very closely and all of this in less time and cost. The above is characterized because it is made up of a frame, equipped with a drag scoop ( 1 ) that can be moved vertically through the use of a hydraulic or mechanical mechanism ( 6 ), to regulate cutting (drag cutting angle), and also has longitudinal ( 2 ) cross beams ( 3 ) which show crow-foot chains ( 8 ) for the dragging of the dredger. In addition, coupled to the frame are at least four watertight runner systems or means ( 4 ), to be dragged with a at a cutting angle from a lower blade ( 9 ) located on the lower perimeter edge of the scoop ( 1 ), these watertight runners ( 4 ) are what prevent it from sinking to the bottom or sinking into the material to be extracted.

1 . Dredger, for the extraction and cleaning of sediments in bays, port accesses, navigable channels, docks, large waterways, lakes or reservoirs, equipped with means for excavation, dragging and removal of bottom and means to regulate and support, with a driving force that is made from land and does not from a vessel on the water surface, which facilitates the extraction of sediments directly onto land and immediately leaves a flat surface on the sea-bed. This is done by regulating the excavation means as well as the very approximate cutting depth and all of this in less time and cost, in addition to generating low environmental impact, CHARACTERIZED because it is made up of a drag shovel ( 1 ) equipped with a blade in the lower perimeter or area of such shovel ( 1 ), with vertical movement with the use of a hydraulic or mechanical mechanism ( 6 ), to regulate cutting (drag cutting angle), and also has at least four watertight skid systems or means ( 4 ), to be dragged at a cutting angle from a lower blade ( 9 ), these watertight skids ( 4 ) allow that the dredger does not sink to the bottom or in the material to be extracted, in addition the wide surface of the skids ( 4 ) that cover a large contact area, will also prevent this. 
     
     
         2 . Dredger, for the extraction and cleaning of sediments, according to  claim 1 , CHARACTERIZED because the skids ( 4 ) being watertight can be flooded inside to make them more ballast or emptied to have buoyancy and help lighten the weight of the entire structure or dredge frame. 
     
     
         3 . Dredger, for the extraction and cleaning of sediments, according to  claim 1 , CHARACTERIZED because over the frame there is a graduate scale used to control the advancement of the dredger, when the requested depth is less than six meters. 
     
     
         4 . Dredger, for the extraction and cleaning of sediments, according to  claim 1 , CHARACTERIZED because the shovel ( 1 ) has a semi-cylindrical longitudinal configuration with lateral walls ( 1   a ), which allows it to turn the material and drag it in a circular motion while advancing, in the lower perimeter area of the shovel ( 1 ), which a hard steel blade ( 9 ), that has a type of replacement claw for any possible hard material that the blade ( 9 ) cannot remove, so it breaks and advances, accumulating the material in the shovel ( 1 ). 
     
     
         5 . Dredger, for the extraction and cleaning of sediments, according to  claim 1 , CHARACTERIZED because the dredger frame where the shovel ( 1 ) is mounted is equipped with a crossbeam ( 5 ) located behind the shovel ( 1 ) where there are regulated supports, which help to prevent the deformation of the shovels ( 1 ), all of this is fixed with bolts, and also has a top arch ( 5   b ) which serves to move the shovel ( 1 ) vertically and immediately below this top arch ( 5   b ) it has vertically-shaped grooved supports ( 6 ) which allows to regulate the cutting height of the shovel ( 1 ), which once regulated is fixed with pins and bolts. 
     
     
         6 . Dredger, for the extraction and cleaning of sediments, according to  claim 1 , CHARACTERIZED because the skids ( 4 ), are four prism support structures, located inside the vertices where some end longitudinal beams ( 2 ) and crossbeams ( 3 ) are joined; these skids ( 4 ) have the capacity to be flooded or filled with air, which allows to regulate the weight of the dredge. This is done by inserting compressed air through a valve (not illustrated), which extracts the water through air pressure injection and comes out through a second valve (not illustrated), then these valves are closed once the operating depth has been regulated.