ICS196

Description

KGHM Polska Miedź S.A. is a leading manufacturer of copper and silver refined in the world. In smaller quantities, KGHM also produces gold, palladium and platinum concentrate as well as lead and other metals. The station is part of the technological network at KGHM, Huta Miedzi Głogów II (HMG II). On its plant there is a fluidizedbed furnace used for copper melting. The exhaust gases from the furnace are
transported to a waste-heat boiler, in which they are used to produce water steam. The steam is further used for HMG II own needs, e.g. for heating water for the boiler drum and for external needs from the steam pressure reduction station designed and supplied by ICS.

Installation

The station is a two-stage station with two redundant lines, each with a capacity of 45 t/h of the steam. This means that each reduction stage is doubled, for example it has two independent steam lines providing, each 100% of the steam capacity supplied from the boiler. The first reducing stage is responsible for maintaining a constant, adjustable steam pressure in the boiler drum. The inlet pressure to the reduction station or boiler drum must be kept at a nominal level of 40 barg, maximum 55 barg. The second stage is responsible for maintaining a constant and adjustable steam pressure from which the newly built copper concentrate dryer plant is fed. The steam pressure that the second reduction stage must keep shall be about 22 barg. The reduction station also includes a relief station installed behind the reduction station’s second stage. The task of the relief station is to maintain a constant adjustable steam pressure of not more than 5.0 barg (minimum 4.5 barg) which is supplied to the HMG II plant network. Similarly to both reduction stages, the relief station is also doubled (redundant). The maximum steam flowrate of the steam that can flow through the each line is 45 t/h. The investment was implemented in a “turn-key formula” directly for the benefit of the investor.