Technical and economic analysis (1) The system integrates drying and pulverization, adopts a fully enclosed production process and recovery system. In operation, it only needs to adjust the rotation speed of the feeder according to the exhaust gas temperature of the high-efficiency airflow dryer to control the hard fat. The feed amount of the acid salt is maintained for the purpose of maintaining normal working conditions. Since the wet material completes the dry milling process in the drying tower at one time, it does not need to be dried twice or more like a general airflow drying system, which not only simplifies the process, but also reduces the labor intensity and reduces the loss of dust. After testing by the user, the new high-efficiency airflow drying system has a stearic acid yield increase of about 5% compared with the original system, and the economic benefits are considerable. (2) The installed capacity of the system is low, the power consumption is only two fans and one single screw feeder, a total of 15kW. If the rotary flash dryer is used, to achieve the same output, the installed capacity needs 50kW, only this one In one year, the electricity bill will be saved by about 200,000 yuan. (3) The fan in the system not only serves to transport the heat source, but also acts to pulverize the stearate, so that the finished stearate 200 mesh is screened once. This dual function of the fan allows the drying and pulverization to be completed once, without the need to add other pulverizing equipment, which saves the initial investment of the equipment. At the same time, in order to avoid dust and the like from entering the motor, the system changes the connection mode between the fan and the motor from direct connection to indirect connection, which prolongs the service life of the motor. (4) The initial investment cost of the system is low. According to the design ability of Jinling Chemical Plant, the initial investment of the whole system is only 150,000 yuan, which is less than half of the rotary flash. In addition, the high-efficiency airflow dryer has a simple structure and is easy to manufacture. Compared with the rotary flash dryer, the production cycle is greatly shortened, and the maintenance is also more convenient than the rotary flash dryer. The high-efficiency airflow dryer has no transmission, fewer wearing parts, and is more convenient to maintain. In summary, the high-efficiency airflow dryer system for the drying of stearates is not only technically advanced, but also economically economical, and has significant advantages over other dryers.
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Jiangyin Hangli Technology Co., Ltd. , https://www.hanglimachinery.com