Rsearch Of Shelling Chestnut Technology Base On Burning

Chestnut is the local specialty of our country, which has great and nutritional value and being widely planted in our country. But our technology deficit in chestnut processing has led to great waste of this product and low consumption per capita. Being one of the counteracting factors in chestnut deeply processing, chestnut shelling is one of the critical problem need to be resolved urgently.Based on the analysis of the former study, the method of chestnut shelling by burning and kneading was raised in this paper. In the study, the heating resource of chestnut burning is decided by experiment, designing and producing of burning and shelling device were finished and tested by experiment, as well as the designing structure of sample machine, the result can be summed up in the following:(1) Pre-processing of chestnut shelling by burning is confirmed by study on the water rate variation of different parts of the chestnut. And the orthogonal experiment of chestnut burning was conducted using a natural gas stove and gained the optimal parameters. According to high temperature experiment with furnace, the relationship between broken rate, carbon degree, cooked degree, coked degree and temperature and time as well as the regression equation about the relationship were obtained. After effect of compare and analyze of the furnace and petrol gas, the later was selected as the heating resource.(2)According to the petrol gas burning experiment, the requirements on burning device were raised. With reference to the drying experiment of agricultural products, the structure of burning device was determined to be spring shaft and smooth shaft.. Parts of the device were designed some and some experiments were conducted with the device and got some parameter for the sample machine.(3) According to the requirement of shelling machine, the requirements of shelling device designing were fixed. By compare of all different shelling theories, selected rubbing and extrusion as the working principle of machine, and structure of the device was designed as the rubber cylinder and concave grid. Also designed some important part and did experiment with the device. Testify using the burning and shelling can get good result in chestnut shelling. And some parameters for designing of the sample machine were provided.(4) According to the experiment by the device, the sketch of the sample machine, and chief parts of the machine designed.The sample machine is sample in structure, easy to manufacture, and has good shelling performance, thus provided a new method in chestnut shelling.