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Biluochun dryer's improvement and use effect
Biluochun dryer has the characteristics of good air permeability and water dissipating, and it can be used to bake famous tea. Not only does it have a high output, but it can also be used for hand-knotting and tidying. The quality of tea is good. However, due to the high price and low thermal efficiency of such machinery, electricity must be used, and thus it is subject to certain restrictions in mountainous areas. In the spring of 1999, based on the Biluochun dryer, the tea group of the Shaanxi Ankang Agricultural College made reference to the structure of the local tobacco baking oven and improved the existing Biluochun dryer. 1?Improvement method The drying bed of Biluochun Dryer is separated from the hot blast stove. When it is improved, the hot blast generator is directly placed inside the oven, and a convolute fire path is set in the lower part of the drying bed to burn smoke from the hot blast generator. Drain into the fire and use the chimney at the end of the oven to drain it. The external dimensions of the oven are 2m in length, 0.7m in width and 0.85m in height. Furnace at the front of the oven, grate made of curved punched steel plate, ventilation holes in the lower part of the grate, the height of 20cm. The interior of the hearth communicates with the fire. Above the hearth is a steel plate. Above the steel plate is a hot air cavity welded by an iron plate. Two small air blowers can be connected at both ends of the hot air cavity. The front end of the hot air cavity passes under the drying bed. The door is 22cm wide and 16cm high. The fire path is located at the bottom of the oven and its structure is similar to that of a roasting furnace. It is a rectangular parallelepiped welded with iron sheet. There is one main fire channel, 120cm long, 20cm wide and 10cm high. There are two fire paths on both sides. The sides can be shared. The fire path is 120cm long, 10cm wide and 10cm high. . The main fire crossing is connected with the smoke inlet of the hearth. The ends of the fire exits at both sides are connected to the chimney via a fume cupboard and the chimney is 4 meters high. 2? Use effect According to the actual use situation in the spring tea period of 1999, this machine not only reached the timetable output and tea quality of Biluochun dryer tea sold on the current market, but also has obvious energy-saving advantages. (1) Save fuel and facilitate baking. This machine is used in comparison with the 6CH?941 Biluochun Dryer to bake 1kg dry tea, which can save 0.4kg of firewood. And the machine also has the advantage of stable temperature, 3 drying beds have a significant temperature gradient. The first and second bake beds have high temperatures and are suitable for fur fire. The third bake bed has low temperature and is suitable for full fire. The operation is very convenient. (2) Save energy. The machine's choice of fan is more flexible. The selected fan can be paired or used in stand-alone mode. The maximum two 200W fans can be used. Compared with the fan with 750W power, the 6CH-941 Biluochun dryer has obvious advantages. Energy-saving effect.