Air Slide Design

1.1

Air Slides

1.1.1

Conveyor Design

Inspection openings at upper channel are required, at least one per section. ä  At material feed points, cloth cloth shall be covered by metal screen, wire wire mesh or similar. similar. Upper compartment shall be of hightop design !i.e. height is larger than width" to ensure ä proper material flow and evacuation of conveying air. ä #langed dust air ta$eoff shall e%clusively be at discharge end of the air slide conveyor. Air slides longer than &' m shall be equipped with intermediate venting of conveying air including a dedusting unit. Cleanout ports on the air chamber shall be located ahead of the discharge point and ahead ä of any distribution(turn pots and diversion gates. ä  Air pipes with with throttle valve valve on each inlet shall shall be provided !air !air inlet lateral lateral or from bottom bottom with deflector plates".  Air permeability permeability of the fabric fabric shall be appro%imately appro%imately 1&' m)(m*h at )' mbar. Depending on ä bul$ material characteristics, the air quantity may deviate from this figure. ä

Type of Material

Minimum Slope

Cement

+ degrees

Cement separator grits, #ly ash 1* degrees aw meal

& degrees

aw meal separator grits

1& degrees

#ilter dust

- degrees

Table 3: 1.1.* ä ä ä

Slope of air slides (based on polyester fabric) #anype /lowers

0uide values for air pressure !including reserve" are Conveyor width &'' mm +' mbar  Conveyor width 2 &'' mm -' mbar 

 Air slides operating operating at lower pressure pressure levels are sub3ect sub3ect to written written approval by the 4ro3ect 5wner. 5wner. ä 0uide values for specific air volume are ä #ine material !e.g. cement, raw meal" * m)(m* per minute Coarse material !e.g. separator grits" ).& m)(m* per minute ä 6a%imum speed )''' rpm for &' 78 electrical supply, )+'' rpm for +' 78 electrical supply. ä ä 9very air slide conveyor shall be equipped with its own fan unless otherwise approved in writing by the 4ro3ect 5wner.  Air filters filters shall be provided at fan inlets. ä #ans installed outdoors shall be protected against ta$ing in of rain through the suction inlet. ä ä Casing mounted fans are as well accepted.  :::::::::::::::::::::