The rotary ash cooler is invented by Chinese(Created in China). SONGLING has a number of patented technologies in Rotary ash cooler.
SONGLING's rotary ash cooler account for over 70% market share in China, ranged from 50MW to 600MW CFB unit.
Several types of ash coolers with transferred technology from Europe and US, such as screw coolers and the fluidized type of ash coolers, were installed in China initially. As the frequent failure of those initial designs of ash cooler in this service quickly became apparent, now those coolers are replaced by rotary ash coolers totally.
Workshop level drawing design
Fabricate Stainless steel & carbon steel plate work parts.
Body of equipment, trough, supports, silo, hopper, air slide, tank
Flight conveyor, screw conveyor, belt conveyor
Buffer tank, intermittent tank
The screw coolers are typically designed to handle boiler ash with a discharge temperature of up to 950℃ and cooling it down to
200℃ or less so it can be transported pneumatically or mechanically to the ash silos.
The rotary drum cooler is invented by Chinese (created in China). SONGLING has a number of patented technologies in rotary drum cooler. SONGLING’s rotary drum cooler has been applied in cooling of calcined coke, semicoke, needle coke, magnesium reduction, manganese reduction, etc.
Songling's screw conveyor uses a rotating helical screw blade within U-trough, to move ash or other bulk materials and often used horizontally or at a slight incline.
The screw conveyor consists of a trough containing a spiral blade coiled around a shaft, driven at one end and held at the other, or a
"shaft less spiral", driven at one end and free at the other.
SONGLING has become an OEM supplier of United Conveyor Corporation (UCC) in USA since 2015 and has supplied more than fifteen projects for UCC by now. We are also the OEM supplier of ANDRITZ Austria and has supported many projects for ANDRITZ till now. Moreover, SONGLING is the approval OEM for EBARA in Japan, OUTOTEC in Finland and FLSmidth in Denmark.
Sewage sludge is primarily derived from waste water which also consists of a variety of other substances. Prior to drying the sludge, free water is removed by mechanical means such as a belt press or firame preas to achieve around20-35% dry solids.