Richards Engineering Ltd.

Pneumatic Sand Conveying.

| Pneumatic Conveying |Pneumatic sand conveying | FAT Sand transporters | Dense Phase sand conveying | Full pipe dense phase sand conveying | Full pipe conveying | Pneumatic sand transporters | Sand Conveying |

OVERVIEW OF THE RICHARDS / FAT DPFP SYSTEM

Richards Engineering have pioneered the application of FAT Dense Phase Full Pipe pneumatic conveying systems in the UK since 1987 with over 200 installations.

This unique form of pneumatic sand conveying offers many advantages over the standard dense phase conveying system, in that with the DPFP the conveying pipes lines remain full of sand all the time, thus no air purge is required at the end of the conveying cycle, and hence the system requires considerably less compressed air than a conventional dense phase system uses to convey the same sand tonnage.

Additional advantages of the DPFP system, is that pipe utilization is maximized, and hence the sand transportation speed is considerably reduced, this will provide a substantial reduction in pipe wear and maintenance, in addition to reduced sand degradation by destructive impact and abrasion. (The DPFP system should not be confused with the high velocity Lean phase, and standard Dense phase systems where high air consumption is still evident along with the associated pipe wear, and sand degradation).

Further advantages are gained when sand is required at several stations, (e.g. to several secondary sand distribution silos) as the DPFP system does not require the use of pinch valves to divert sand to each station.

THE RICHARDS / FAT DPFP SYSTEM PROVIDES

• LOWER AIR CONSUMPTION THAN STANDARD DENSE PHASE SYSTEMS

• LOWER SAND VELOCITIES

• REDUCED PIPE LINE WEAR

• REDUCED PARTICLE DEGRADATION

• NO PINCH VALVES FOR DIVERSION TO ALTERNATIVE SILOS

• NO SETTLING OUT PROBLEMS IN THE PIPE

• LOWER MAINTENANCE

• FLEXIBILITY OF ROUTING

• FULLY PLC AUTOMATED SYSTEM WITH PRIORITY CALL UP

• PERMITS DISTRIBUTION RUNS THAT WOULD BE IMPOSSIBLE WITH STANDARD DENSE PHASE SYSTEMS

• SYSTEM PERFORMANCE MONITORING

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Richards Engineering Ltd. 7 & 9 New Star Road, Leicester, England. LE4 9JD.

Tel No. +44 (0) 116 246 0055 --------- Fax +44 (0) 116 246 1142

Last updated 23 October 2008

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