GEP19970777B - Floating clamshell dredger for mining sand and gravel - Google Patents

Floating clamshell dredger for mining sand and gravel

Info

Publication number
GEP19970777B
GEP19970777B GEAP19931260A GEAP1993001260A GEP19970777B GE P19970777 B GEP19970777 B GE P19970777B GE AP19931260 A GEAP19931260 A GE AP19931260A GE AP1993001260 A GEAP1993001260 A GE AP1993001260A GE P19970777 B GEP19970777 B GE P19970777B
Authority
GE
Georgia
Prior art keywords
tank
gripper
gravel
sand
underwater
Prior art date
Application number
GEAP19931260A
Inventor
Gmbh Rohr
Original Assignee
Gmbh Rohr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gmbh Rohr filed Critical Gmbh Rohr
Priority to GEAP19931260A priority Critical patent/GEP19970777B/en
Publication of GEP19970777B publication Critical patent/GEP19970777B/en

Links

Landscapes

  • Load-Engaging Elements For Cranes (AREA)

Abstract

A floating grab installation for recovery of sand and gravel is disclosed. The installation includes a catamaran-type float or pontoon having a gripper and gripper support thereon. The gripper transfers the sand and gravel to an underwater tank having an endless bucket dredge which plunges to its lowest point. Floating grab installation for the recovery of sand and gravel including a float body having means supporting a gripper, characterized in that to the float body (1) there is attached an underwater tank (7) having an internal predetermined water line, and into which at a lowest point of said tank there plunges an obliquely upward-conducted bucket dredge (9) characterized in that the underwater tank (7) is constructed as an upcurrent container which is provided with spray nozzles (16). Between the gripper (4) and the underwater tank (7) there is arranged a tipping or scraping grate (5). The underwater tank (7) is connected by means of a funnel (6) to the tipping or scraping grate (50, the side walls (10, 11) of which are directed as a chute against the tank bottom. On an upper edge of the tank (7) there is arranged at the water line a surrounding overflow gutter (18), to which an outlet gutter (18') is connected. Said bucket dredge further comprising an outlet side and characterized in that on the outlet side of the bucket dredge (9) there is engaged a dewatering machine 913).
GEAP19931260A 1993-07-28 1993-07-28 Floating clamshell dredger for mining sand and gravel GEP19970777B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GEAP19931260A GEP19970777B (en) 1993-07-28 1993-07-28 Floating clamshell dredger for mining sand and gravel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GEAP19931260A GEP19970777B (en) 1993-07-28 1993-07-28 Floating clamshell dredger for mining sand and gravel

Publications (1)

Publication Number Publication Date
GEP19970777B true GEP19970777B (en) 1997-01-27

Family

ID=82309532

Family Applications (1)

Application Number Title Priority Date Filing Date
GEAP19931260A GEP19970777B (en) 1993-07-28 1993-07-28 Floating clamshell dredger for mining sand and gravel

Country Status (1)

Country Link
GE (1) GEP19970777B (en)

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