Volund Grate Upgrades to State of the Art Design

A Volund grate can be upgraded to provide a better combustion of the waste.

Dublix Engineering offers a range of services to upgrade your Volund grate to State of the Art design.

Manufacturing and erection drawings of new mechanical feature:

• New and improved design of grate adjustment mechanism,
• New and improved design of upper supports for stationary grate girders,
• New and improved design of lower supports for stationary grate girders,
• New arrangement of grate girder assembly,
• New grate drive with position sensor integrated in the hydraulic drive cylinder,
• The grate girder design of today adapted to earlier grate designs.

Double action feeding grates:

• Modification to work as the more efficient single action feeding grate,
• Transformation into the more efficient single action feeding grate.

Upgrading of Volund grate mechanics and castings to state of the art design:

• An identifying feature of state of the art design is an ø25 mm grate block stringer connecting bar instead of the earlier ø20 mm bar,
• Improved sealing around the whole grate surface perimeter,
• Improved lateral grate adjustment,
• Absolute locking of grate bars in grate blocks (= a row of grate blocks can only be opened from the top down; not in intermediate areas by the passing waste),
• Possibility of different pressure drops in different areas across the grate surface in question (a completely closed surface along the furnace side walls and gradually it opens up to maximum porosity in the central lane; or maximum porosity in the upper third of a post combustion grate, tailor-made porosity in the middle third according to your own experience and totally closed surface in the last portion).