SD 0.8 Parallel Flow Dryer

The BG Europa SD 0.8 Parallel Flow Dryer and SFC 20 Pulse Jet Bag House have been developed to meet a requirement for a low capacity, versatile and cost effective package for the drying of various sand, glass and mineral products. Drawing upon longstanding experience within the low temperature drying sector the smaller sister to the SD 1.5 is nominally rated at two tonnes continuous feed per hour with 5% moisture removal. The accompanying SFC pulse jet filter is ideally suited to low temperature drying applications as its efficient cleaning mechanism does not cool the incoming dryer exhaust gases.

In standard form the drying package features:

Model SD 0.8 0.8m x 3.2m Parallel Flow Dryer

The dryer support base frame incorporates a hinge arrangement to allow the drum inclination to be adjusted between 0.5º and 3.0º to suit material specifications (factory set at 1.0º).

The drum shell is manufactured from 6mm thick 50D boiler plate steel finished with one coat of heat resistant paint and fitted with a set of bolt in and replaceable flights manufactured from 5mm thick EN8 steel.

Trunnion rollers are manufactured from EN8 steel and the spider drum support frame with central shaft at discharge end runs within a split housing plummer block bearing.

Direct drive is provided by a 4.0 kW bevel helical high efficiency gearmotor.

The airplate incorporates the integral feed chute fitted with bolt in replaceable liner plates.

The hinged design of the airplate which incorporates the burner mountings allows easy access for servicing.

The two burner units each with integral combustion fans, oil solenoid valves, oil pump and sequencing controller are mounted on the airplate. The high and low rated burners can be fired independently or simultaneously to provide the required heat output. Each burner can be adjusted within its firing range allowing the dryer to be tailored to the material being dried.

The exhaust stack base and discharge hood incorporates the dryer discharge chute which is fitted with bolt in liner plates. A neoprene seal arrangement fitted between the exhaust stack base and drum shell maintains drying efficiency by preventing excess air entering the process. A thermocouple is fitted within the discharge chute to measure the temperature of the dried material. Additionally a second thermocouple is mounted in the exhaust stack base to measure the temperature of the dryer exhaust gases and provide alternative dryer temperature control. SFC 20 Pulse Jet Fabric Filter.

Twenty factory installed Nomex type (500 mg/m²) filter bags provide a total cloth area of 9.0m². The bags incorporate a snap ring collar to secure them into the plenum plate and provide an air tight seal. The 20 bag cages are zinc coated to offer extended life and incorporate an integral venturi to maximise cleaning efficiency. The compressed air manifold is fitted with solenoid operated valves to precisely control air through the cleaning cycle. An electronic pulse controller allows fine adjustment of the cleaning pulse duration and frequency to suit operating conditions. The single discharge hopper is fitted with a rotary bindicator to indicate high level and a manually operated butterfly valve allows the collected

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