Liu Chunshan

Multi-information Fusion Technology for Positioning System

In the positioning system, the effect of the cumulative error was happened which will result in inaccurate positioning if single technique was applied in the system. In this paper, multi-information fusion technology was used to realize the precise location in the positioning system. Firstly, the Wireless Local Area Networks technology was used to achieve a wide range of positioning. Then Radio Frequency Identification Devices technology was used to achieve small range positioning. Finally, the two technologies were combined to realize the precise location of the system. Experimental results show that the application of this technology is feasible.

Research on the Black Agarics Variable Temperature Infrared-Convection Drying Equipment

In order to improve the drying quality and reduce the energy consumption of the black agarics, the application of infrared heating technology and the convection of hot air drying technology combination in the drying process, the weigh of black agarics recorded by the first and the second weighing system and the data were compared with the final moisture drying required. In order to improve the drying quality of black agarics, the drying time and temperature of the first and the second drying platforms can be controlled by adjusting the transmission speed of the conveyor belt and the convection temperature. It can achieve the precise control of the black agarics drying rate, which save time and improve the drying quality of black agarics.

Experimental Study and Analysis on Heat Transfer Effect of Far Infrared Convection Combined Drying

Far infrared convection combined heat transfer is one of the best methods for energy saving and drying. In this paper, a comprehensive experimental study and analysis of the far infrared convection combined drying was carried out, to explore the intrinsic link and interaction between parameters in the drying process. Far infrared convection combined heat transfer was discussed in detail. The test was performed on the self-made test bench. The two orthogonal rotation regression design was made to get the regression equation, and by analyzing the corresponding heat transfer response surface, the relationship between the parameters on heat transfer efficiency was obtained.

Analysis on the Influence of the Exchange Area on the Heat Exchange Efficiency during Far-Infrared Convection Combination Grain Drying Process

Based on energy-saving and quality-keeping drying concept proposed by domestic and overseas scholars in recent years, this paper designs a new experiment scheme.The test was performed on the self-made test bench by means of far infrared convection combined drying method.To explore the intrinsic link and interaction between parameters in the drying process, the inlet air volume was 15.24 m3/h, 18.78 m3/h and 26.23 m3/h. Heat transfer tube spray HS-2-1 low temperature infrared materials and non-sprayed infrared materials. The data of each group were tested and the heat transfer efficiency was calculated. Analysis of sprayed infrared materials and non-sprayed infrared materials under conditions, The heat transfer efficiency to achieve the best state of the parameters of the range.

The Principle and Experimental Research of New Type of Recirculating Grain Dryer

According to the drying characteristics of grain, a new type of recirculating grain dryer was optimized and designed. Used the method of thin layer drying, dynamic fault flow, on-line automatic weighing and water measuring and other methods, combined electric resistance water measuring method and oven water measuring method, the feasibility and accuracy of on-line automatic weighing and water measuring has been verified, which has realized the high quality energy saving and drying of grain. The drying characteristics of new type of grain recirculating dryer under different conditions were tested in the field, and the drying characteristic curves were obtained. The relative error between the on-line automatic weighing and water measuring and the electric resistance water measuring and the oven water measuring was compared.

Fungus Rotating Drying Control Equipment

On the basis of a large number of observation for black fungus drying, we design double period of rotating drying control equipment, which integrates drying shaping, sterilization, sorting and complete drying. The appliance is mainly composed of feed hopper, a rotary drying shaping pot, a transmission belt, lift conveyor belt, sorting device, two complete drying devices and barometric drive system. It is suitable for drying and sorting black fungus, litchi and so on, which adopts the rotary drying device and vibration sorting mechanism, realizes scattering the black fungus drying, greatly improves product quality, reduces floor area of ordinary solar drying and saves plenty of manpower and material resources.

Experimental Study on Heat Transfer Effect of Far Infrared Convection Combined Drying

Far infrared convection combined heat transfer is one of the best methods for energy saving and drying. In this paper, a comprehensive experimental study and analysis of the far infrared convection combined drying was carried out, to explore the intrinsic link and interaction between parameters in the drying process. Far infrared convection combined heat transfer was discussed in detail, the test was performed on the self-made test bench, the two orthogonal rotation regression design was made to get the regression equation, and the corresponding heat surface were analyzed to obtain The relationship of heat transfer between the parameters was obtained.

Experiment on the Natural Ventilation of Corncob in Different Size Rectangular Barns

Moisture content, humidity, wind speed and temperature were measured by the monitoring system in order to analyze the energy change in the process of moisture migration and optimize the barn structure. The results showed that high water area concentrated in the west side of bottom in four barns. Absolute water potential and corn temperature were on the rise as the same as the drying rate. Wind speed and drying rate were all appeared a low value between January and February. Width size of barn caused the ventilation evenness, and corn equilibrium moisture content evenness in number 1 barn was lower than others. Ventilation evenness of number 4 was best but the drying rate was inferior to the number 3. In conclusion, the structure of the number 3 rectangle barn was more reasonable.