Trash rack cleaning machines and grabs

Water intake trash racks are clogged with trash present in the water during operation of water intake. Trash rack cleaning machines or special gantry cranes with grabs are used to clean them.

SDTB «Zaporozhgidrostal» elaborates design of:

  • trash rack cleaning machines;
  • flat-scoop grabs;
  • grabs type «Polyp».

If arrangement of water intake doesn’t allow to place special trash rack cleaning machine, functions of this machine are performed with a gantry crane with special equipment attached to it – the grab. Grabs can by with double-scooped and multi-scooped. Depending on the type of drive they can be:

  • mechanical;
  • hydraulic;
  • pneumatic.
Special  gantry crone equipped with a flat - jaw grab
Special gantry crone equipped with a flat - jaw grab

Experience and qualification of SDTB «Zaporozhgidrostal» in elaboration of trash rack cleaning machines

ProjectCountryDenominationLength of bucket, mmGage, mmMass, t
Svistukhin HPPRussiaInclined trash rack cleaning ma-chine. RN-20002000250016
Nizhne-Buzsuy-1 HPPUzbekistanVertical trash rack cleaning machine. RV-1500150015005,1
Tochi-Pilaton HydrosystemEcuadorInclined trash rack cleaning machine. РN-16501645300017
Flat-scoop grab
Grab «Polyp»

Experience and qualification of SDTB «Zaporozhgidrostal» in elaboration of rack cleaning grabs

ProjectCountryGrab typeNumber of scoopsWidth of grab, m
Dnestr Pump storage powerUkraineHydraulic grab «Polyp»61,73
Dak Mi-4b HPPVietnamHydraulic grab «Polyp»61,73
Dak Mi-4a HPPVietnamHydraulic grab «Polyp»61,73
Shulbin HPPKazakhstanHydraulic flat-scoop grab1 moving
1 fixed
11,5
Verhne-Krasnogorsk HPPRussiaHydraulic flat-scoop grab1 moving
1 fixed
7,56
Yali HPPVietnamHydraulic flat-scoop grab1 moving
1 fixed
7,6