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SZG

Double Cone Rotary Vacuum Dryer

Overview
The SZG double cone rotary vacuum dryer is designed to dry free-flowing materials that are brittle. Heat is transferred to materials through jacketed vessel wall, and the moisture or other gases produced during material evaporation are exhausted via vacuum pump and exhaust pipe. The entire vessel runs under vacuum to further aid in moisture removal, and also rotates end over end to quicken dry speed and ensure drying uniformity.

This conical screw dryer with mixing and drying functions integrates condenser, vacuum pump and drying mechanism (Condenser is not needed if solvent recovery is not required). With advanced design, simple internal structure and self emptying function, it can be easily operated and cleaned, thus reducing labor intensity and improving working environment.

Meanwhile, materials won’t readily stick to the vessel wall ofdouble cone rotary vacuum dryer, making for high heat transfer coefficient and energy saving rate. Presently, this machine is extensively applied to food, dyeing, pharmacy, chemical engineering and many other industries.

Features
1. The vacuum pump rotates with vessel of double conevacuum harrow dryer to avoid attrition, which also protects materials from being polluted.
2. Both ends of the vacuum conical dryer vessel are designed with spherical rotating joints which are sealed by graphite.
3. Motor bracket is adjustable to make sure that conveying belt works with optimum tension.
4. Vessel liner, jacket and shaft sleeve of this double conevacuum harrow dryer are made in one piece through welding. Large-sized boring machine is used to ensure shaft sleeve flatness and vessel concentricity. Hence, radial run-out of main shafts at both ends won’t exceed 0.2mm.
5. The double conevacuum harrow dryer vessel is configured with diaphragm type vacuum gauge displaying vacuum degree inside the vessel to eradicate false vacuum.

Technical Parameters
Model
Item 		100 350 500 750 1000 1500 2000 3500 4500 5000
Vessel volume (L) 100 350 500 750 1000 15000 2000 3500 4500 5000
Maximum charging capacity (L) 40 140 200 300 400 600 800 1400 1800 2000
Maximum charging weight (kg) 20 70 100 150 200 300 400 700 900 100
Rotating speed (rpm) 3-13 6 5 4 4 4
Motor power (KW) 0.75 1.1 1.5 2.2 3 4 5.5 7.5 11 15
Floor area (L×W, mm) 2160×800 2160×800 2350×800 2560×1000 2860×1300 3060×1300 3260×1400 3760×1800 3960×200 4400×2500
Rotating height (mm) 1750 2100 2250 2490 2800 2940 2990 3490 4100 4200
Designed vessel pressure (MPa) -0.1-0.15
Designed jacket pressure (MPa) ≤0.3
Weight (kg) 800 1100 1200 1500 2800 3300 3600 6400 7500 8600

Note:
1. The above parameters are obtained when the specific weight of materials is 0.6g/cm3. Otherwise, please indicate it clearly in the order.
2. Please inform us if you need pressure vessel certificate or you hope the vessel liner is made from glassed steel.
3. If materials are flammable and combustible, using this machine for drying is prohibited.

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