Research And Development Of Solar Energy Collaborative Drying Of Noodles Technology And Equipment

The production line of dried noodles consists of powder mixing,liquid mixing,mixing,pressing,drying and packaging.Among them,drying and dehydration is the most important part in the production of dried noodles.The heat source of this process is mostly fossil fuel heating heat conduction medium,which continuously carries heat into the drying chamber to heat the air,so as to achieve the purpose of noodles dehydration.Fossil fuel is unsustainable and accompanied by a certain degree of environmental pollution,so renewable and clean energy should be developed,It is of great significance for the development of noodle industry.The purpose of this study is to develop a solar energy collaborative drying system,which is used to assist the hot air unit of the existing noodle drying room to dry,reduce the dependence of the unit on traditional fossil fuel heating,reduce the consumption of heat transfer medium,so as to achieve the purpose of energy saving.In this study,firstly,the existing drying system of dried noodles is analyzed.Combined with the working principle of the hot air unit in the system,a solar collaborative drying system is developed to provide heat source for the unit.At the same time,the data of the whole system is analyzed.The main research contents and results are as follows:(1)Based on the analysis and calculation of the parameters of the existing dried noodles drying production line,the heat consumption of dried noodles drying room is 1.6×106kJ/h,that is 3.8×1 07kJ,when the daily production capacity is 50 tons of dried noodles.(2)The plate type air collector is selected as the heating component,and the materials used in each part of the collector are selected;The solar heating test-bed is built,the operation data of the test-bed is recorded,and the orthogonal analysis and variance analysis are carried out.Finally,the optimal azimuth of the collector is 180°,The best angle is 22°,The best ventilation rate of collector is 90m3/h.(3)Through the design and calculation of the solar collaborative drying system,the installation area of the collector is 360m2,the installation method of the collector is determined,the installation bracket is designed,the cross-sectional area of the air duct and the wind pressure are calculated,the fan is selected according to the wind pressure and air volume demand,and the special control program for the solar collaborative drying system is developed.(4)The annual operation data of solar energy collaborative drying system is analyzed,and the annual energy saving of the system is 5.27×105 MJ.3.44 million yuan can be saved in the 15 year life cycle,and the total saving is 2.7%×105kg standard coal and the payback period is two years,and the annual carbon dioxide emission can be reduced by 4.6×105kg.