DGC’s Precast Division specialises in the design, manufacture and installation of a complete range of customised precast refractory shapes for several industries including non-ferrous metal smelting. The company’s non-ferrous industry precast refractory shapes have been successfully integrated into different specialty applications within non-ferrous smelter processes for many non-ferrous metals like aluminium, copper, platinum and nickel. The precast refractory shapes offer superior performance modular refractory lining solutions, enabling longer service lives, faster installation, shortened repair times and lower porosities.
The company’s range of common precast refractory shapes that have been developed for the non-ferrous industry include the following:
Burners / nozzles
Electric arc furnace roofs
The precast refractory shapes are manufactured off the client’s site, under controlled conditions, dried-out in purpose built production facilities under stringent quality control systems, ensuring the manufacture of accurate moulds and subsequent casting of the special shapes to ensure an enhanced product service life. Precast refractory shapes offer the added benefits of ease of installation and shortened repair times.
The general precast refractory production process comprises of the following major stages:
Design & engineering
Mould design & cutting
Mixing, casting, curing & drying
DGC’s precast business was established in 1986 and has more than 30 years’ experience as a leader in the design and manufacture of customised precast refractory shapes. With world-class production facilities, combined with license agreements in engineering and design technology, the company has the capability to manufacture a wide range precast shapes for various applications. Some of the facilities are described below:
3D parametric computer modelling software
Polystyrene cutting & mould design technology
High intensity paddle mixers
Furnaces for drying at up to 1 000'C
Overhead cranage to lift even large precast refractory shapes
Reliable & efficient services