The domestic large-scale environmental protection and energy-saving asphalt mixture mixing equipment development project undertaken by Xizhi Company has passed the technical appraisal of the Ministry of Communications in Xi’an recently.
Recently, the Department of Science and Technology Education of the Ministry of Communications presided over the technical appraisal meeting of the "H Series Forced Intermittent Mixing of Asphalt Mixtures" project held in Xi'an. After earnestly listening to the project's work, research, testing, and new scientific report and user's opinions, the experts believe that the project is technologically advanced, with reasonable function design and reliable work. Compared with similar domestic models, the energy saving and environmental protection features are obvious. The overall development of the project has reached the international advanced level. Its key technology has the following characteristics:
(1) Its control system adopts bus control, which can achieve integrated control, high scalability, high measurement accuracy, accurate fault diagnosis function, and improved production efficiency.
(2) The thermal storage silo has a large capacity, adopts a high material level such as a thermal storage silo, and a secondary closing technique, which improves the gradation accuracy of the aggregate, increases the heat capacity intensity, and ensures the oil-cement ratio of the finished product.
(3) High-efficiency main burners are used. Specially designed insulation layers are used in drying cylinders, hot storage bins, and mixing pans to ensure the stability of the finished product temperature and the energy-saving effect is significant.
(4) The filter area of ​​the bag filter is large and the dust removal efficiency is high. The smoke and dust emission indicators are at the leading level in China, and the fully enclosed design can meet the requirements for urban use.
(5) Modular design makes installation and relocation quick and easy.
With the rapid development of China's national economy and highway construction, the technical requirements for the asphalt mixture mixing equipment have become higher and higher. The environmental-friendly mixing equipment developed by Xizhi Company has greatly improved the pollution, noise, energy consumption and control accuracy than the original mixing equipment, and has met and exceeded the requirements of the national urban environmental protection. It will play an important role in the development of China's road construction this year. The equipment has sold more than 20 sets so far.
"Construction Machinery Technology and Management"
What is a CNC machining center?
CNC machining center is composed of mechanical equipment and CNC system, suitable for processing complex parts of high efficiency automated machine tools, and the use of cnc control system to generate digital signals to drive the milling machine mechanism to do precision machining action, in layman's terms is the computer edited program is transmitted to the machine tool, control the machine tool automatically to a product processed out. Previously, ordinary milling machines are manually operated by the manual tool change and cutting, can only process some simple workpiece, and processing efficiency is low, and the quality is not high. And CNC machining center generally comes with tool magazine, are automated processing, including the elimination of Tang Xuan decoration work threads and cutting threads, etc., with a variety of processing work to go process means, comprehensive processing capabilities are very strong.
CNC machining or computer numerical control machining is a digital manufacturing technology, CNC machines can rotate around a different number of axes, tools are usually three or five axes. The basic CNC process can be divided into. An engineer first designs a CAD model of the part, and then a technician converts the CAD file into a CNC program called G-code.
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