Equipment

Chemical Handling and Reactors

White Liquor Oxidation

A.H. Lundberg Systems supplies two types of white liquor oxidation systems to generate a caustic substitute. The systems consist of the efficient oxidation of sodium sulphide to sodium thiosulphate. Our patented air oxidation system drives residual sulphide content to virtually nil while the oxygen system is supplied as a module complete with all piping and instrumentation ready for connection to the mill's piping.

Mixer/Reactors

Also called Stirred Surface Reactors, we offer specialty pressure vessels that incorporate an axial shaft with rotating plows, ribbons, or paddles to promote mixing or a chemical reaction. The vessel may be heat jacketed to add or remove heat, subject to process requirements. Additionally, the vessel can incorporate the addition of a vacuum system and condenser to recover vapours released within the reactor.

Sulphur Burners

The Lundberg Systems' design can include infrastructure to melt solid sulphur or utilize molten sulphur. Size range of systems offered is from 1 ton per day molten sulphur burned to above 60 tons per day. The molten sulphur atomization uses high pressure heated air resulting in a high combustion temperature as well as a high sulphur dioxide concentration. Sulphur trioxide generation is minimized. The combustion products may be cooled for absorption into water or a caustic solution.

Specialty Pressure Vessels

Process requirements for pressure vessels may be as simple as basic storage or can range to more complex designs incorporating condensing vapour feed streams, chemical addition, and agitation. A.H. Lundberg Systems provides comprehensive process engineering expertise to ensure the integrity and safety of very vessel supplied for each service.

Distillation Columns

A.H. Lundberg Systems provides design and supply of continuous feed distillation columns, and associated pre-heaters, reboilers, reflux condensers, and secondary product condensers. Designs using random packing, structured packing, and trays are available, generally determined by the process requirements.

Vapourizers

Our sulphur dioxide and chlorine vaporizers are modular and may include rail car off-loading systems as well as custody transfer systems. An integrated chemical reserve tank provides short term storage, allowing uninterrupted operation during rail car change-overs. Systems may incorporate compressed air or nitrogen padding, hose racks, ambient air monitoring, and high accuracy custody transfer instrumentation.

Chemical Handling Systems

Chemical handling systems from A.H. Lundberg Systems include caustic and sulphuric acid dilution, and sodium hypochlorite dilution modules. All are available as systems integrated into a plant or as pre-fabricated, piped, instrumented and tested modules prepared for shipment.

Quench Vessels

Excessive heat entrained in gas streams can be effectively removed by direct injection of water or other liquids into the gas stream, utilizing evaporative cooling. Our quench vessels are designed to introduce fine aerosol sprays at critical positions on the vessel to achieve the most efficient absorption of the liquid without carry-over. We offer refractory lined, brick lined, high nickel alloy, and reactive metal construction as required by the process. Horizontal and vertical arrangements are available.