The Research And Designs Of Drying System For Industry

This subject originates from China YiTuo Group Corporation Limited second ironworks engineering project of sand pattern hot-air-dries system. The subject mainly studied automatic transmission line and control system of temperature in the sand pattern hot-air-dries system. Automatic transmission line and the temperature control system are mutually independent about the electricity. In the work of design automatic transmission line, this paper does lots of research about event-driven system, and abstracts a simple modeling method according to the characteristic of itself: Condition-shift network. The topology structure of Condition-shift network is composed by condition set shift set and directed arc. This kind network is suitable for describing those complicated, complicated, asynchronous system. The article has discussed the behavior characteristic and structure characteristic of this network, such as reachability and activation analysis briefly. In the third chapter after carefully analysis project demand, paper discussed the usage of main equipments and which connect each other. This article also offered the model of automatic transmission system and the realization of programming. In temperature control system, the stove takes the indirect hot blast to heat sand pattern because project disallow heat work piece directly. The temperature of stove system divides into three parts: the combustion system, the heat-transfer system and the temperature control system. In the last chapter, paper discussed the basic principle of heat exchange system and combustion system, then, discussed the design of the control loop of system of temperature in detail. After analyzed the temperature field within the whole stove body at the end of the paper, article obtains the conclusion of the hot blast fluid in the stove body to be at the turbulent state, so the temperature distribution in the stove body is uniform.