Thickeners:

GKD can offer proven technology in all major industries. More than twenty years of designing,
installing and testing thickeners in diverse applications have achieved a comprehensive
reference list spanning both the local and international markets.

GKD offers :

Steel tank installations with diameters ranging from 1 m to 60 m
Concrete tank installations
Retrofitting of new mechanisms into existing tanks
Drive head designs from 2 kNm to 3000 kNm
High-rate, Conventional, Paste and Underground thickeners
Turnkey or supply ex works options
Proven sedimentation technology on both High-rate and Conventional thickeners
Latest engineering design methods including Finite Element Analysis (FEA) as well as hydrodynamic and structural behavior under earthquake loading
In-house design, local support and extensive process information database assisted by Computational Flow Dynamics (CFD) Analysis
In excess of 250 installations worldwide, including earthquake zone areas

Features :

Automatic Rake lift
Low maintenance mechanisms
Thixotropic rake design
Auto load sensing
Auto dilution
Scum and oil removal

High-Rate Thickeners :

Flocculant addition, typically 5 to 40 g/t
High capacity per unit area, resulting in smaller footprints
Clear supernatant due to floc bed filtration

Conventional Thickeners :

Little or no flocculant addition
Low capacity per unit area, resulting in a larger footprint but greater storage capacity
High underflow densities and clear supernatant

Design

Computational Flow Dynamic (CFD) modelling of process parameters
Finite Element Analysis (FEA) for optimal weight : strength ratio
Dynamic earthquake evaluations
Hydrodynamic response to earthquake loading
3D parametric modelling

Detailed life cycle calculations on all mechanical components, guaranteeing 100 000 hours operating life, or longer if necessary.

The utilization of these design techniques has allowed GKD to supply thickeners for the most stringent and demanding applications, including:
Minimized number of tank support columns, allowing maximum space and access to underflow pumping equipment
Cost effective tanks, rakes and bridges in a variety of materials of construction, including Stainless Steel
Adjustable / replaceable rake blades
Automatic rake lift.