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Various Drying Energy Economy Comparison Table | |||||||
Heating type | Electric heater | Coal Boiler | Oil-fired Boiler | Gas Boiler | Biomass Stove | Common Heat Pump dryer | Drytech Latest Heat Pump Dryer |
Remove 1kg of water required heat energy | According to information provided by the relevant authority of the document, the average 1kg of water to remove heat energy required for 1.35 kw/kg,namely 4860 kj/kg | ||||||
Fuel type | Electric | Coal | Diesel | Gas | Biomass fuels | Electric | Electric |
Heat value | 3600 kj/kg | 23027 kj/kg | 33494 kj/kg | 36006 kj/kg | 17459 kj/kg | 3600 kj/kg | 3600 kj/kg |
Thermal efficiency | 95% | 30% | 85% | 85% | 90% | 350% | 400% |
Effective thermal value | 3420 kj/kg | 6906 kj/kg | 28469 kj/kg | 30605 kj/kg | 15713 kj/kg | 12600 kj/kg | 14400 kj/kg |
Fuel price | 0.1$ /kwh | 0.1$ /kg | 1.2$ /L | 0.8$ /m3 | 0.2$ /kg | 0.1$ /kwh | 0.1$ /kwh |
Fuel consumption | 1.42kwh | 0.7kg | 0.17L | 0.159m3 | 0.375kg | 0.386kwh | 0.337kwh |
Fuel consumption ($) | 0.142 | 0.007 | 0.204 | 0.127 | 0.075 | 0.039 | 0.034 |
Labor management, warehousing costs | Higher | High | High | High | Low | Low | Low |
Safety performance | Unsafe | Unsafe | Unsafe | Unsafe | Safe | Safe | Safe |
Environmental pollution | None | Very serious | More serious | More serious | Light pollution | None | None |
Life of equipment | 5-8 years | 6-9 years | 6-9 years | 6-9 years | 8-12 years | 10-15 years | 10-15 years |
Drytech Heat Pump Dryer Features:
1. New design idea--Three times waste heat recovery;
2. Adopt heat regenerators to dehumidify;
3. Adopt touch screen controllers and dry/wet bulb to control temperature and humidity, operation drying machine easily and more accurate;
4. adopt duct-type drying method, it with shorter drying time and well-distributed hot air, drying time shorter 30% than old models;
5. during drying, the material does not craze,does not distortions, nondiscolouring, never degenerate, non-oxidize, drying completely, with good Rehydration, keep nutrient content.
Model | Power supply | Power input(KW) | Rated current | Refrigerant (R134/KG) | Heating capacity(KW) | Cooling capacity(KW) | Dehumidify capacity(L/H) | Hot air flow(m³/H) | Dryer size(mm) | Drying chamber size(mm) |
DT300H | 220V,1PH,50/60HZ | 5.5 | 25.0A | 2.5 | 10.5 | 7.8 | 12.0 | 23600-12800 | 1650*856*1280 | 3160*2070*2200 |
380V,3PH,50/60HZ | 5.5 | 11.0 A | 2.5 | 10.5 | 7.8 | 12.0 | 23600-12800 | 1650*856*1280 | 3160*2070*2200 | |
DT500H | 380V,3PH,50/60HZ | 6.9 | 14.0 A | 3.8 | 16.0 | 12.5 | 20.0 | 23600-12800 | 1650*856*1280 | 3160*2070*2200 |
DT600H | 9.5 | 19.0 A | 4.0 | 21.0 | 18.0 | 25.0 | 47200-25600 | 1650*1056*1280 | 5700*2170*2200 | |
DT1200H | 19.4 | 39.0 A | 8.0 | 42.0 | 32.0 | 50.0 | 70800-38400 | 2089*1356*1590 | 5810*3230*2200 | |
DT300HD | 11.0 | 22.0 A | 5.0 | 21.0 | 15.8 | 24.0 | 47200-25600 | 1650*856*1280 | 7510*2070*2200 | |
DT500HD | 13.8 | 28.0 A | 7.6 | 32.0 | 25.0 | 40.0 | 47200-25600 | 1650*856*1280 | 7510*2070*2200 | |
DT600HD | 18.4 | 37.0 A | 8.0 | 42.0 | 36.0 | 50.0 | 47200-25600 | 1650*1056*1280 | 10530*2170*2200 | |
DT1200HD | 32.8 | 66.0 A | 16.0 | 84.0 | 64.0 | 100.0 | 70800-38400 | 2089*1356*1590 | 10750*3230*2200 |
Conventionally, materials are dried either in the field (sun drying) or using high temperature dryers (electric, gas fired, etc.). Successful outdoor drying depends upon good weather and indeterminate weather can render a product worthless. High temperature drying can damage the nutrient content and impart an unpleasant smell to the dried product.Specialty crops such as ginseng, herbs, echinacea, etc., need to be dried at low temperatures (30 - 45Celsius degree) for product quality optimization. This is an important consideration as they have a relatively high commercial value. Heating ambient air to use for drying, although a simple cost-effective procedure, is of limited application, particularly at higher ambient air relative humidities because of the low allowable maximum temperature conditions. Under high ambient moist air conditions, it may not even be possible to dry the material by conventional means. High temperature drying deteriorates the material structure and can render it unsuitable for further use. Low temperature drying of specialty crops reduces the risk of loss in nutrient content and damage to physical properties. Drying system incorporating a dehumidification cycle have been developed that both conserve energy and handle the material gently. The dryer operates using a heat pump where both sensible and latent heats are recovered from the exhaust air. The heat is then recycled back through the dryer by heating the air entering the dryer. The Drytech heat pump drying system is a combination of two sub-systems: a heat pump and a dryer, also the equipment have 3 times waste heat recovery. Drytech heat pump dryer operates according to a basic air conditioning cycle involving four main components: the evaporator,the compressor, the condenser and the expansion valve.The working fluid (refrigerant) at low pressure is vaporized in the evaporator by heat drawn from the dryer exhaust air. The compressor raises the enthalpy of the working fluid of the heat pump and discharges it as superheated vapor at high-pressure. Heat is removed from the working fluid and returned to the process air at the condenser. The working fluid is then throttled to the low-pressure line (using an expansion valve) and enters the evaporator to complete the cycle.In the dryer system, hot and dry air at the exit of condenser is allowed to pass through the drying chamber where it gains latent heat from the material. The humid air at dryer exit then passes through the evaporator where condensation of moisture occurs as the air goes below dew point temperature.Then drain the condenser water.
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Model No.: DT300H
Power supply: 380-415V/3PH,50/60HZ, 220V/1HP,50/60HZ
Power input: 14.5KW
Rated current: 29.0A/66.0A
Heating capacity: 10.5KW Heat pump dryer + 9.0KW Electric heater
Cooling capacity: 7.5KW
Model No.: DT300H
Power supply: 220V/380V, 50/60HZ
Power input: 5.5KW
Rated current: 25.0/11.0A
Heating capacity: 12.0KW
Cooling capacity: 8.0KW
Model No.: DT600H
Power supply: 380V-3PH, 50/60HZ
Power input: 9.5KW
Rated current: 19.0A
Heating capacity: 21KW
Cooling capacity: 18KW
Address: Guangzhou City, Guangdong Province,P.R.China
TEL: +86-159-8924-9151/Whatsapp
E-mail: info@drytech.com.cn
