Process flow diagram

1.Dryer/granulator 2.Furnace 3.Cyclone 4.Absorber 5.Suction fan 6.Blow fan 7.Elevator 8.Screen 9.Crusher 10.Collecting bin 11.Sluice feeder ADVANTAGES     •    Reduction in the amount of construction materials used for dryer/granulator fabrication. •   Reduction in specific fuel and power consumption by 20-30%. •   Reduction in the amount of emissions to the atmosphere by 30-40-%. •   Increase in granule strength by 1.5-2 times and decrease in dust content by several times.

SPECIFICATION for granular ammophos as an example   Index As per design FG2,8-35NU-01 As per analog BGS 4-22 Ammophos capacity, t/hr 20 20 Pulp moisture, % 25 25 End product moisture, % 1.5 1.5 Gas temperature, °C     inlet 300 - 1000 400 - 500 outlet 130 100 Gas velocity at inlet, m/s 40 - 50 10 Feed gas flow rate, Nm³/hr 570 710 Flue gas flow rate, Nm³/hr 36100 52200 Weight (in metal) , tons 8.3 232 Specific evaporated moisture capacity, kg/m³ћhr 180 25 Specific parameters per ton of ammophos     fuel consumption, kg of arbitrary fuel 32.7 40.6 power consumption, kwћhr 31 39

The plant was awarded at international exhibitions:

In Brussel 'Eureka-97'	Gold medal
In Paris in 1988	Grand Prix
In Moscow in 2002	Silver medal
In 2004 at IY Moscow international salon of innovations & investments	Gold medal & Diploma

For granular ammophos the 10 t/h plant FG3-17NU-01 is accepted by the Interdepartmental Commission to be put into service/ In testing 1500 tons of ammophos was produced. The 20 t/h dryer/granulator FG2,8-35NU-02 was tested with pulp moisture of 30% and a positive result obtained. The advantages of the plant for granular ammophos over fluid bed dryers/granulators, drum, spray/fluid bed and spouting dryers are as follows: due to the heat carrier at 800-1000 °C and velocity of 40 - 50 m/s the intensity of granulation process increases by 5 - 7 times, savings in plant construction materials are several times lower, fuel and power consumption are reduced by 20 - 30% as well as exhaust emissions to the atmosphere are decreased by 30 - 40%. The granule strength as compared with the granule strength produced in drum dryers/granulators has increased by 1.5 - 2 times and dust content of the end product has decreased by several times. The plant is competitive in case of updating, operational and new production processes. The dryer/granulator FG2,8-35NU-03 produces granular calcium chloride at JSC Sterlitatamaksy 'Soda' to GOST 450-77 since January 2005 . The feed is 65% moisture solution. In 2006 the granular calcium chloride capacity was 4.3 t/hr with running time of 720 hrs. Granular calcium chloride produced by the dryer/granulator FG2,8-35NU-03 features granule density and strength, lower caking and can be stored sealed bags for several months. It meets Moscow's requirements for antiacing reagents, in the winter period of 2005-2006 Moscow 20 thous.tons of granular calcium chloride of high grade to GOST 450-77 (with calcium chloride content not less than 90%). in the winter period of 2006-2007 JSC 'Soda' delivered to Moscow 22 thous.tons, in the 2007-2008 - 25 th.t., in the 2009-2010 - 25 th.t. of granular calcium chloride produced by the dryer/granulator FG2,8-35NU-03. The author and head of development of the dryer/granulator,   Ivanov Oleg Rostislavovich, cand.sci. Russian version

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