Bunkers and storage vessels

Elimination of suspending bulk material in bunkers and storage vessels.

In numerous technological installations there is a severe problem with provision of regular supplies of various materials and components. Therefore, bunkers and storage tanks are crucial components in the technological lines. Keeping them clean and unobstructed can minimise shutdowns in production and assures high quality of the final product. As concerns the boilers, continuous fuel supply and ash removal have to be provided. Varying coal or biomass parameters result in fuel suspensions in bunkers and storage tanks. In particular, the biomass fired boiler users (straw, wooden chips, pallets) face this serious problem of providing continuous fuel supplies. When producing a shock wave, the shock wave generators (GFU-24/8) shake up the material in the storage tanks and eliminate the suspension phenomenon. The installations have been proven in numerous bunkers and storage vessels in which various bulk material is stored.

The main features which characterise the cleaning system based on the shock wave generators (GFU-24/8) in comparison with other commonly applied solutions are as follows:

• High efficiency in removal of material overhangs and crusts.
• No mechanical damage to the storage tank metal components.
• Increased usable volume of the storage tanks.
• Reduction of the vessel filling frequency.
• Capability to design bunkers having various constructions.
• Minimum phenomena of recoil and pressure increase in storage tanks.
• Ability to use various inert gases.
• Low operational costs.
• Low consumption of compressed air.
• No need for extension of the existing compressor station.
• The commonly applied compressed air pressure up to 8 atm.
• Compliance with noise emission standards, i.e. 45 dB at the boundaries of the plot.
• The installation does not require large air buffer tanks.
• Mounting of the generators without any need for modification of bunker or additional platforms.