SINCE 1889 Yamato Scientific Co.,Ltd.
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Spray Dryer
DL41
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Fine particles of 100μm are produced.
The DL41 is a spray dryer which can produce fine particle of 40 to 100μm, which were considered to be extremely difficult to produce in laboratories.

Water Evaporation
Max.3000 ml/h
Operating Temperature Range
40deg.C to 300deg.C
Liquid Sample Flux
up to 80 ml/min.
Spray Nozzle
Dual Fluid Nozzle

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  • Capable of producing fine powders approaching the quality of production facilities for fields such as ceramics, medicine, food products, etc., with the fine granule size ranging from 40 to 100μm.
  • High sample recovery since sample attachment to the chamber is little.
  • It is possible to take enough time for dry needed to get fine particles due to the high-capacity drying chamber.

Specifications
  DL41
Performance and Structure
Water evaporation rate Max. approx. 3,000 ml/h
Spraying system Two-liquid nozzle system (Dia. of orifice : 0.7mm)
Spray/hot air contact system Downward spray parallel flow system
Sample liquid feed pump Quantitative peristaltic pump, flow rate variable up to 80ml/h.
Aspirator Bypass-type commutator blower, air flow rate variable up to 1m3/min.
Temperature control Temperature control by thyristor, temperature control range : 40deg.C to 300deg.C
Heating source Stainless steel pipe heater (2.0kW×2pcs.)
Drying chamber dimensions (mm) 450 (Dia.)×1,000 (H) (Glass part)
Material Drying chamber, cyclone, product vessel : Super hard borosilicate glass (other tubes are made of stainless steel and silicone rubber hose)
Additional operating features of the nozzle Automatic orifice clean out (needle knocker), clean out of any powder adhered to the tip (nozzle blower)
Additional operating features of the body

Automatic raising and lowering of the head (for washing of the drying chamber and hot air blower)

Instrumentation Control function : Inlet temperature, hot air flow, sample pump feed quantity, atomizing air pressure, orifice clean out time.
Meter : Temperature recorder of inlet and outlet temperatures, dry air flow meter, atomizing air pressure gauge.
Standard
Power source (50/60Hz) AC 200/220V, single phase
25A/23A
External dimensions(W×D×Hmm) 1,060×880×1,750
Weight Approx. 180kg
Accessories
Pump tube 6.4(O.D.)mm×3.2(l.D.)mm x 2(L)m 2pcs.
Air hose 7.9(l.D.)mm×3(L)m 1pc.
Exhaust duct 50(l.D.)mm×3(L)m 1pc.

Control panel

Easy operation and maintenance
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* The hot air inlet and drying chamber cover automatically move up and down, and since thecyclone and product vessel can easily be removed, cleaning at the finish of your experiment is easy.

* Control functions are convenintly arranged on the control panel for various conditions.
The temperature recorder, air flow meter, pressure gauge and other measurements allow easy control of experiment conditions

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Spraying nozzle
Nozzle size (μm)
Model 2A 2 3 4 5
Nozzle No. 2050 2850 2850 60100 100150
(F) A 508 711 711 1530 2550
B 1270 1270 1270 2550 3825
Nozzle No. 70 70 64.5 120 130
(A) C 1778 1778 1638 3060 4530
Liquid nozzle (F)
ADL310 Liquid nozzle
Air nozzle (A)
ADL310 Air nozzle

*System diagram
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Dimensional drawing (mm)