Cajamarquilla Zinc Refinery

Basic engineering (Step V2) as part of the Engineering Framework Agreement signed in mid-2013.

Basic engineering for all automation and control systems

Source: GMI Ingenieros Consultores

Detailed engineering (Step V3) as part of the Engineering Framework Agreement signed in mid-2013.

Detailed engineering for: Treatment of manganese dioxide, Area 70 structural assessment, Area 43 SX fire protection system, Area 94 change of compressors, power supply of the new dining room, changing rooms and offices.

Source: GMI Ingenieros Consultores

Basic and detailed engineering for the 5,000 ton storage capacity clinker silo, as well as the clinker pneumatic discharge system up to the entry of the 4 day bins. This pneumatic system represents an alternative to the existing mechanical redlers system. The clinker is received from the roaster by 2 bucket elevators which discharge into the Redlers.

A new discharge towards the entrance of clinker Silo 3 was implemented from the discharge of one of the redlers.

Source: GMI S.A. Ingenieros Consultores

Assembly work of various machineries including: 2 cranes, 6 cooling towers and two smelters, additional installation of 728 tonnes of structures and 9,500m of pipe.

Antacid coating of 23,000m2 was also performed. In regards to the specialties of electricity and instrumentation, laying and connection of 51,000m of power and control cables as well as 24,000m of instrumentation cables was performed.

The main areas of work were the new cell house, molding building, Zinc and Powder building and a demineralized water plant.

Source: Cosapi Ingeniería y Construcción

Deliverables for Cajamarquilla zinc refinery expansion project including:

Refinery cell houses: Civil works of the cell houses building and erection of 96 prefabricated polymeric concrete cells.

Roasting Plant and Sulfuric Acid Plant: Civil works and electromechanical assembly of the roasting plant and sulfuric acid plant for Outotec.

Indium Refinery: Civil works and structural assembly, equipment and piping installation, electrical power and implementation of an Indium plant.

Stebbins Tanks and Thickeners: Construction of 27 tanks and seven concrete thickeners with antacid coating, as well as nozzle maintenance in existing tanks.

Relocation of Railway Line: Demolition, earthworks and concrete works for the relocation of the railway line for Ferrovias.

Source: GyM