Intelligent coal yard control system of thermal power plant and it control method

Abstract

The invention discloses an intelligent coal yard control system of thermal power plant and its control method and belongs to the technical field of coal yard management and control system. The systemcomprises a data server is connected with an application server and an interface server. The application server is connected with a client. The interface server is connected with a coal conveying system PLC, an SIS system, a fuel whole process management platform, a three-dimensional laser scanner and a stacker-taking system PLC. The PLC of the coal handling system is connected with the PLC of thedumper system. The coal yard environmental monitoring system and the stacker-taking system PLC. The system has the advantages of reasonable design, fully exerting the advantages of the existing control system of the coal conveying system, reducing the investment of transformation, improving the intelligent level of the coal conveying system of the power plant and the equipment operation efficiency, avoiding the occurrence of spontaneous combustion of coal in the coal yard, improving the precision of the coal blending through the intelligent coal blending control and improving economic benefitof the unit.

Description

Technical field [0001] The invention relates to an intelligent coal yard management and control system for a circular coal yard of a thermal power plant, belonging to the technical field of coal yard management and control systems. Background technique [0002] Compared with the traditional strip coal storage yard, the circular closed coal yard has many advantages such as small area, high site utilization rate, environmental protection, and strong ability to adapt to bad weather. It is used in most thermal power plants, especially newly built power plants. Circular closed coal yard. Stacker and reclaimer are installed in the circular closed coal yard as the equipment for stacking and reclaiming coal. At present, only a few domestic enterprises have realized semi-automatic stacking and reclaiming in the round coal yard or by setting parameters. The automatic operation of the reclaimer adopts the remote semi-automatic method, which is easily affected by the technical level and fati...

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Problems solved by technology

[0005] The prior art discloses some patented technologies for the digital management of coal yards in thermal power plants. For example, in a Chinese patent with a publication date of July 4, 2012 and a publication number of CN102541036A, a coal-fired intelligent dispatching system for thermal power plants is disclosed. The patent introduces an intelligent scheduling method for coal combustion, but does not design specific methods and methods for coal yard management; Coal-fired power plant coal yard refinement management system and its control method. This patent introduces the use of a laser pan coal detector to scan the coal yard and realize the fine-grained management of coal-fired power plant coal yards, but it cannot realize the intelligent management of round coal yards. The management and control of the coal plant cannot realize the fully automatic unattended control of the stacker and reclaimer and the fully automatic coal mixing control, the intelligent verification of the belt scale and the laser scanner, the intelligent assessment of the coal production data, and the detection of toxic and toxic gases in the coal plant. On-line monitoring of dust concentration

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