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FURNACE HOTWORK SERVICES

DGC has more than 90 years of experience in providing multidisciplinary services to large industrial furnaces across the complete range of metals smelting, mineral processing, chemical, refining and thermal power industries.

 

Dickinson Hotwork Services; a subsidiary of DGC was initially established in 1994 and has for more than 25 years been providing services to various industries worldwide. The company specializes in on-site heat treatment; utilizing mobile gas or diesel fired equipment.

 

The company has a large number of High Velocity Burner sets, with the capacity to undertake numerous furnace refractory drying-out and heat-up projects simultaneously, ensuring that our customers receive the highest quality service and expertise.

 

All our technicians are trained in-house according to the OEM manuals to operate all the equipment optimally and safely. Our technicians are graded annually to ensure that they are well qualified to undertake our furnace hotwork services in accordance with our safety and quality standards

INDUSTRIES

  • Glass Furnaces

  • Steel & Coke Making

  • Cement & Minerals

  • Non-Ferrous Metals

  • CFB Boilers

  • Incinerators & Biomass

  • Aluminium Furnaces

  • Copper & PGM Furnaces 

SERVICES

  • Refractory Dry Out

  • Furnace Heat Up

  • Furnace Cooldown

  • Furnace Expansion Control

  • Regenerator Cleaning

  • Insulation Coating of Regenerators

  • Furnace Hot Repairs

  • Temperature Monitoring

  • Post-weld heat treatment (stress relieving).

  • Internal firings or temporary furnaces, utilizing diesel or gas burners.

FURNACE REFRACTORY DRYOUTS

Residual moisture in refractories during furnace dry-out operations may be converted into steam too quickly, resulting in explosions, which may adversely impact the efficiency and life of the refractory linings. This is because most conventional process heat sources are not suitable for carrying out the initial dry out as they do not afford close temperature control in the lower ranges. Our Refractory Dry-Out Services involve controlled heating and ventilation of a furnace to remove all the moisture in refractory mortars and monolithic materials.

 

DGC’s technology is based on the use of gas or diesel-fuelled High-Velocity Burners that are portable and can be positioned in the most appropriate manner to provide uniform temperature distribution throughout the entire volume of the furnace. By passing large volumes of hot gases over the refractory surface, the system provides an even temperature distribution that removes all moisture from the refractory. This will not only save time and money from fuel consumption; it also protects the initial investment in the expensive refractory and enhances the furnace refractory lifetime.

FURNACE HEAT-UP

Our company’s specialized heat-up technology and equipment is suitable for the heat-up of all types of furnaces. The systems make use of High Velocity Burners operating on excess air, producing a positive furnace pressure that assures uniform temperatures throughout the designated areas of the furnace.

 

The systems ensure precise temperature control and can be regulated at all stages between 60°C and 1200°C; simultaneously eliminating hot-spots and stagnant areas within the furnace.

FURNACE EXPANSION / CONTRACTION CONTROL

The correct and timely adjustment of the furnace steelwork during the refractory expansion, or contraction, is a very important aspect of every furnace start-up or shutdown as it has a bearing on a furnace’s stability and lifespan. DGC’s Refractory Dry Out & Heat Up Services Technicians have successfully completed numerous furnace expansion control projects with different requirements and procedures giving them the flexibility to respond to any challenges.