SMG - Static Rundown Screens

A very versatile unit that can be used in many applications & industries, and is designed for many installations:

• Standalone units are not only sited in one fixed position on the ground or a gantry/framework but can also be mobile to be taken to numerous locations: mounted on a trailer, have wheels/casters, or made for craning or forklifting.   
• Integrated into a process line where the incoming slurry or outgoing solid/liquid elements are processed.
• Scalable, where many Rundown Screen units can be coupled together to meet large-scale capacity requirements, enabling huge throughputs.
• Built into a flow/waste-water channel or waterway where solids or unwanted contaminants need to be removed or captured. Single or coupled units can be used to bridge the width of the channel or meet the throughput/capacity requirement. Working on the same function principle – the flow stream breaches the unit’s weir and can be used in two ways:
  • clean up a waterway/drainage channel or capture solids – the solids left on the upper surface of the screen are taken down the solids route, and the liquid that has passed through the screen continues down the channel.
  • Flow reduction/control and capturing of the liquid element – the liquid that has passed through the screen is captured and is routed away, any solid matter and surplus flow that has overwhelmed the Sieve Screens capacity, continues down the channel.

All the above designs have options for covers, doors, and manual or automatic washing. See Filtration for products to enable the washing water to be recycled.

As some of the above configurations are built into installations, all our units are designed so that the Sieve Screen can be easily lifted out without having to remove the whole unit.

Although our Static Rundown Screens make the best use of the curved 10° tilted Wedge Wire Sieve Screen technology, gravity is the only force present, which creates certain limitations:

• Slurries with a low Dry Matter, simplistically pumpable
• The minimum size of solid particle removal is around 200 microns as any smaller generally causes blinding/screen blocking issues, even with automated washing. This can be overcome by considering a Vibrating Rundown that can go down to 80 microns, a Rotary Screens Separator or a Compaction machine, or another option is using coagulation technology, visit coagulation on this site for more details.
• Greasy, sticky, certain viscous, and dissolved solids slurries tend not to work on static Rundowns as they cause blinding issues (we can advise on this). In certain cases, our vibrating units can cope with some of these difficult slurries, or you could consider another Separator type.
• The dry element tends to be a low Dry Matter and is non-stackable – needs contained storage