Although the hot air drying is simple in operation and low in cost, its operating temperature is high, the color and aroma of the vegetables and the nutrient components are seriously damaged, the product grade is low, the product quality is difficult to meet the market requirements. Although freeze-drying production dehydration has good quality of the product, the equipment investment is large, the production operation cost is low, the profit margin of the manufacturer is small, the product price is high, and it is difficult to open up the market, so it is not suitable for general vegetable processing. The LD1807 heat pump and hot air combined drying equipment can solve the above problems. new wood hot air drying furnace LD1805
LD1807 heat pump and hot air combined drying equipment
Advantages of LD1807 heat pump and hot air combined drying equipment:
Heat Pump and Hot Air Combined Drying Equipment LD1807
- The drying rate is fast, the drying is uniform, and the processing amount is large.
- No microbial contamination, good quality after drying.
- Low production cost, low energy consumption and no “three wastes” in the production process.
- The drying temperature is low, the drying surface will not crust during the drying process, and the moisture inside the material can be smoothly transferred to the surface to evaporate. The quality of the dried product is good and the moisture content is low.
Schematic diagram of LD1807 heat pump and hot air combined drying equipment
Drying chamber 1, expansion valve 2, inlet air damper 3, evaporator 4, condenser 5, condenser fan 6, compressor 7, circulating fan 9, branch pipe 10, bypass pipe 11
Structural features of heat pump and hot air combined drying equipment:
The equipment consists of a drying chamber, an expansion valve, an inlet damper, an evaporator, a condenser, a condenser fan, a compressor, and a circulation fan.The condenser and the drying chamber are connected by circulating fan pass through pipeline; the drying chamber is connected to the evaporator through the damper through the pipeline, the control expansion valve is arranged between the evaporator and the condenser, condenser fan is arranged on the condenser, the compressor inlet and outlet are connected to the evaporator and the condenser. Auxiliary heater is added between the drying chamber and the circulating fan. Branch and bypass pipes are also provided.
Parameters of LD1807 heat pump and hot air combined drying equipment:
| Model | Studio specifications（mm）（deep * width * height） | Size（mm）（deep * width * height） | Voltage（V） | power（KW） | Temperature control range（℃） | accuracy（℃） |
| LD1807-1 | 350*450*450 | 580*910*800 | 220 | 2 | Room temperature~300℃ | ±5 |
| LD1807-2 | 450*550*550 | 630*1000*860 | 220 | 3 | Room temperature~300℃ | ±5 |
| LD1807-3 | 500*600*750 | 680*1100*1100 | 220 | 4.5 | Room temperature~300℃ | ±5 |
| LD1807-4 | 800*800*1000 | 980*1150*1350 | 380 | 9 | Room temperature~300℃ | ±5 |
| LD1807-5 | 1000*1000*1000 | 1180*1340*1340 | 380 | 12 | Room temperature~300℃ | ±5 |
| LD1807-6 | 1000*1200*1200 | 1180*1540*1540 | 380 | 15 | Room temperature~300℃ | ±5 |
| LD1807-7 | 1000*1200*1500 | 1180*1540*1840 | 380 | 21 | Room temperature~300℃ | ±5 |
| LD1807-8 | 1200*1500*1500 | 1380*1840*1840 | 380 | 27 | Room temperature~300℃ | ±5 |
Working process of LD1807 heat pump and hot air combined drying equipment:
The condenser 5 and the drying chamber 1 are connected by a circulation fan 9 through pipeline, the drying chamber 1 passes through the inlet air damper 3 is connected to the evaporator 4 by the pipeline, the expansion valve 2 for control is arranged between the evaporator 4 and the condenser 5, the condenser 5 is equipped witha condenser fan 6, the inlet and outlet of the compressor 7 is connected to the evaporator 4 and the condenser 5, the auxiliary heater 8 is arranged between the drying chamber 1 and the circulating fan 9; The branch pipe 10 is disposed, and one end of the branch pipe 10 is connected between the drying chamber 1 and the inlet air damper 3, the other end is connected between the air outlet between the circulating fan 9 and the condenser 5 to realize switching between the heat pump operation and the hot air operation and the joint drying operation.
LD1807 combined drying equipment is widely used
Working principle of LD1807 heat pump and hot air combined drying equipment:
The heat pump and the hot air combined drying equipment add auxiliary heater between the drying chamber and the circulating fan and are provided with a branch pipe. One end of the branch pipe is connected between the drying room and the inlet air damper, the other end is connected between the circulation fan and the condenser air outlet to realize the switching between the heat pump operation and the hot air operation and the joint drying operation.
In addition, the LD1807 heat pump and hot air combined drying equipment is also provided with a bypass pipe. One end of the bypass pipe is connected behind the damper, before the evaporator pipe, the other end is set before the condenser and behind the evaporator to achieve the ratio of the circulating air volume of the evaporator and the condenser，thereby, the purpose of regulating the opening air temperature and humidity of the drying chamber is achieved, the temperature and humidity requirements of different drying seasons are adapted to different seasons.
Leader Microwave Equipment Company provides services for users of LD1807 heat pump and hot air combined drying equipment:
- We provide users with one year warranty service. The quality problems that occur during the warranty period will be repaired free of charge by our company.
- We will assign technicians to solve your problem as soon as we receive the message from the user.
- You can contact us at any time, we will be happy to provide you with the principle of “customer first”.
Pakistan customers visit and test machine / Iran customers test machine
Our LD1807 heat pump and hot air combined drying equipment has been exported to many countries, such as Australia, Mauritius, South Africa and so on. We have won the praise and trust of our customers and established long-term friendly cooperative relations with many old customers. Welcome to contact us in various ways.
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