Control theory is the interdisciplinary branch of engineering and mathematics, dealing mainly in the input signal of the power system's behavior. External input system called "reference value", the system of one or more variables need to change with the reference value lime kiln automation control equipment, controller input green lime kiln processing system automation control system, allowing the system to get the desired output effect. Control theory is borrowed by the general purpose of the motion controller makes the system stability control system, which is the system maintained at a set value, and does not rock around the set value. Classification loop control system closed loop feedback control system is built on the basis of the principle of using the same amount of deviation of the output desired value to control the system, get better control performance. Closed loop control system, also known as a feedback control system. _ Honda Environmental limestone conveying system (online consultation) _ control system provided by the Xinxiang City Hongda energy saving equipment Limited. Xinxiang City Hongda energy saving equipment Limited (www.xxhdjnhb.com) Henan Xinxiang, mortar leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. HTC environmental leadership with the staff warmly welcome all inquiries negotiations to create a better future for environmentally friendly Honda.