The Study And Development On Powder Flow Measurement And Control System

In building materials, metallurgy, chemical, power, pharmaceutical and food and many other areas of production, measurement and control of powder materials is a common problem. Although the solid material flow measurement and control system research and design a long history, many products, but measurement accuracy and system integration and products costs a lot of room for improvement in other aspects. Chute is one of solid flow meter.Currently, the acquisition and control devices commonly used by professional instrumentation and PLC in two ways. PLC control requirements relatively low levels of the design staff, combined with existing peripheral modules, and then rely on the appropriate support software to make ladder logic design can be completed, but the relatively high cost of equipment is not conducive to market competition; on to consider the issue of funding for small businesses, reached under the premise of technical equipment reliability to minimize investment, instrument control flow meter is undoubtedly the best choice.The research system has been the product design learn from foreign ideas, according to the domestic needs of the specific technical standards and products, improvement and redesign. Respect the original design of theoretical guidance, the specific design and component selection have been improved. Specific mechanical design of some of the basic fixed, only a small amount of processing technology and parts on the small details of changes to simplify the mechanical structure and manufacturing processes. Electric control parts of components made design, select all the components of domestic parts, control theory unchanged. Re-design of electronic devices, software design and development of their own programming.Designed to optimize the overall system design goals, including the selection of mechanical parts, electrical control part of the improvement, analysis and selection of the characteristics of sensors, control instruments completely new design and process development.This paper focuses on research design to control the flow meters with meters, mainly the design process and equipment to meet the needs of flowmeter, and flow meters. sensors and instrumentation relations. In introducing the principle and structure of flow meters based on the instrument control and give details of the structure, analysis of the site the main source of interference in the instrument, made of hardware features and software control of the major initiatives. Finally, upon request from the theoretical arguments of the design ideas, and calculate the theoretical parameters. After commissioning, installation, and ultimately the mission requirements.