Integrated self-adaptive coordinated control system for flue gas denitrification, water-saving and coal-saving of cement plant

Abstract

The invention discloses an integrated self-adaptive coordinated control system for flue gas denitrification, water-saving and coal-saving of a cement plant. The integrated self-adaptive coordinated control system comprises a centralized control DCS (Distributed Control System) of a clinker line, a flue gas denitrification system, a water-saving system and a cement clinker production coal-saving system and is characterized in that various systems are accessed to the centralized control DCS and used for sharing data by communication and controlling coordination of the integrated structure; the DCS can be used for statistically analyzing and optimally calculating onsite data, and automatically regulating technical parameters, so that the energy-saving benefits of a factory is maximized.

Description

technical field [0001] The invention belongs to the field of automatic control, and in particular relates to an adaptive coordinated control system integrating flue gas denitrification, water saving and coal saving in a cement plant. Background technique [0002] Nitrogen oxide (NOx) is a gas produced by the oxidation of nitrogen during the combustion process. It not only stimulates the human respiratory system, damages animals and plants, and destroys the ozone layer, but is also one of the main substances that cause greenhouse effect, acid rain, and photochemical reactions. one. All over the world, the requirements for NOx emission restrictions are becoming stricter, and thermal power plants, waste incineration plants and cement plants are the main sources of NOx gas emissions, and their emission reduction has received extra attention. During the 12th Five-Year Plan period, nitrogen oxide emissions were included in the binding indicator system for the first time. The cem...

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Problems solved by technology

[0004] In recent years, the country has vigorously advocated energy saving and emission reduction. It is imperative to reduce flue gas denitrification, water saving, and cement clinker production in cement plants. However, the current flue gas denitrification system, water saving system, and cement clinker production coal saving They are just independent systems that do not communicate with each other, and information cannot be exchanged and shared. Often, a lot of water is wasted in the pursuit of maximizing coal saving, and it is impossible to maximize the energy saving benefits of the entire plant.

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