Pulacayo Project Feasibility Study - Apogee Silver

Pulacayo 1 000 t/d Phase I Feasibility Study - NI 43-101 Technical Report
090644-3-0000-20-IFI-100
17.1.12 Plant Layout
The plant layout was developed from the basic process design criteria. These criteria
defined the required steps to treat the ore received from the mining operations to produce
acceptable concentrates for dispatch.
The process plant steps were set out for the given site conditions, and the required
infrastructure and services were added. The plant layout was constrained by a series of
factors:
The conveyor lengths required to reach the required heights of their respective
discharge points
Ground conditions.
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The layout was then optimized in respect of the following:
To reduce piping distances; and to position unit process steps, taking
advantage of the site contours, to minimize the bulk earthworks and terracing
required
Evaluated for maintenance requirements, and the necessary access provided
for the all the process equipment.
The support facilities for operations were then integrated into the plant design. The change
house facilities are located to the entrance to the concentrator area.
The support functions for workshop, stores, reagent make-up and laboratory are located on
the east side of the process area to allow easy and close access to the main plant sections
The collection and delivery of the products have been optimized in terms of the in-plant road
systems and layouts.
Consideration was also made in the plant layout for future expansions and increases in the
Pulacayo plant production. Consequently, these planned future plant expansions can be
constructed without interference to the operations, except for final plant tie-ins and hot
commissioning.
17.1.13 Control Philosophy
17.1.13.1 Process Plant Control Philosophy
Standard process control equipment such as flow meters, level detectors, density gauges
will provide important information on performance of the process plant. The mill will have a
variable speed drive for start-up and speed adjustment and the float section pumps will also
have variable speed drives to control the flow through the section. The paste thickener will
be furnished with a dedicated PLC.
17.1.13.2 Control Systems
For all instruments located in the process plant, control system will be locally, there is no
central control system. Main equipment such as cone crusher, jaw crusher, ball mills and the
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