We offer a wide range of high quality of equipment & machines for food drying.
The blueberry drying machine also called blueberry heat pump dryer has the advantages of fully automatic operation during the drying process, automatic constant temperature and humidity, automatic judgment of humidity and automatic dehumidification, etc., which can effectively solve the discoloration, deterioration, uneven moisture and production pollution of blueberries during drying and drying. and other problems, so that the color of the dried blueberries is kept well, the loss of nutrients is small, and the storage period is long.
The drying process of blueberries takes up to 20 hours, and the skin needs to be treated, otherwise the water in the middle should not be evaporated. Blueberries have high sugar content and are easy to lock in water. The blueberry drying process needs to be completed in 3~4 stages, and the intermediate process needs to The standby mode is stagnant, and there is no need to move out of the drying room, but the drying system is no longer heated, but only allows the air path to circulate, allowing the blueberry moisture to naturally penetrate into the drying room.
The following is an example of drying 500 catties of fresh blueberries in an air-energy blueberry drying room with a 3P length 3.5*width 2.2*height 2.2 to analyze the energy consumption and drying cost of blueberry drying.
The first step is to put the picked fresh blueberries into the tray and put them into the material cart.
The second step is to push the loaded blueberry material cart into the drying room for drying.
The third step, blueberry drying is carried out in three stages
(1) The first stage: set the drying temperature to 45°C, the relative humidity to 12%, drying + strong dehumidification mode, drying for 8 hours.
(2) The second stage: set the drying temperature to 55°C, the relative humidity to 12%, drying + dehumidification mode, and drying for 6 hours.
(3) The second stage: set the drying temperature to 65°C, the relative humidity to 12%, drying + dehumidification mode, and drying for 4 hours.
(4) The fourth step, drying a batch of blueberries takes about 18 to 20 hours. After drying, the quality of the dried products is checked and sorted and packaged.
The water content of blueberries is high, and the first stage can be appropriately extended for 1 to 2 hours according to the actual situation. The drying time for drying 500 catties of blueberries is calculated as 20 hours. The 3P blueberry dryer consumes 4 kWh/hour, and the total power consumption for drying a batch of 500 catties of blueberries is 80 kWh. The specific electricity price is subject to the local area.
1. Good drying effect: It can realize closed cycle drying of atmospheric pressure and low temperature air, and the quality of blueberry drying is good;
2. Low cost: the operating cost of the air source heat pump dryer is only 40% of the fuel-fired drying, 60% of the coal-fired drying and 30% of the electric heating drying;
3. Full automation: intelligent control of temperature and humidity, which fully realizes the automation of the drying process of blueberries;
4. Energy saving: the heat in the hot and humid air discharged from the drying room can be recycled and reused, which greatly improves the utilization efficiency of heat;
5. Environmental protection: closed thermal cycle avoids pollution caused by dust and odor being discharged into the environment together with the exhaust gas;
6. Wide range of applications: used in the drying of seafood, herbs, scented tea, fruits, vegetables, fungi, etc.;
Heat Pump Dryer Parameter
Drying temperature range
Power supply form
Temperature control accuracy
Electric heating power
Single chip microcomputer/PLC+color screen control
10CM polyurethane insulation board room, good insulation effect, reduce energy loss;
Air energy heat pump heat source configuration, energy saving and environmental protection, high thermal efficiency;
The jet enthalpy compressor adopts two-stage throttling intermediate jet technology with low energy consumption and high efficiency;
The drying car and the dehydrating tray are complete with accessories, which can be selected from high temperature resistant materials and stainless steel materials;