Cement rotary kiln intelligent optimization control system

A cement rotary kiln, intelligent optimization technology, applied in the general control system, control/regulation system, program control and other directions, can solve the problem of frequent changes in operating conditions and working conditions, the detection of firing zone temperature and decomposition furnace temperature by noise interference, Big inertia and other issues

Inactive Publication Date: 2015-11-04
NORTHEASTERN UNIV +1
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of severe noise interference in the detection of firing zone temperature and calciner temperature in the cement production process, frequent changes

Method used

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  • Cement rotary kiln intelligent optimization control system
  • Cement rotary kiln intelligent optimization control system
  • Cement rotary kiln intelligent optimization control system

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] 1. The overall structure of the cement rotary kiln intelligent optimization control system

[0023] like figure 1 The structural diagram of the cement rotary kiln intelligent optimization control system shown:

[0024] The cement rotary kiln intelligent optimization control system is composed of the rotary kiln process control subsystem, the rotary kiln operation optimization subsystem and the rotary kiln process monitoring subsystem.

[0025] like figure 2 The structure diagram of the rotary kiln process control subsystem shown:

[0026] The rotary kiln process control subsystem consists of the rotary kiln head negative pressure control circuit, grate cooler grate chamber pressure control circuit, kiln head exhaust gas dust collector inlet temperature control circuit, coal powder preparation system inlet negative pressure control circuit, coal pow...

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Abstract

The invention discloses a cement rotary kiln intelligent optimization control system. The system structurally comprises (1) a process control subsystem composed of a rotary kiln head negative pressure control circuit, a grate cooler grate chamber pressure control circuit, the inlet temperature control circuit of a kiln head exhaust gas dust collector, the inlet negative pressure control circuit of a coal dust preparing system and the bowl mill outlet temperature control circuit of the coal dust preparing system; (2) an operation optimization subsystem composed of an operation quality index setting module, a key technological parameter control circuit optimization setting module and a circuit intelligent control module; and (3) a process monitoring subsystem having system monitoring, fault diagnosis, equipment management and safety guaranteeing functions. The system can adapt to a cement rotary kiln calcining process characterized by strong non-linearity, strong coupling, great inertia and large lag to improve the clinker unit weight qualified rate and reduce energy consumption.

Description

Technical field: [0001] The invention belongs to the technical field of cement production process automation control, in particular to an intelligent optimization control system for a cement rotary kiln. Background technique: [0002] The large-scale equipment in the cement production process mainly includes rotary kiln, grate cooler and ball mill for powder making system. For the production process of the rotary kiln, there are couplings of the flow field, temperature field, concentration field, and combustion heat release field in the kiln, and the parameters interact with each other, coupled with each other, there is a large lagging link, and there are many disturbance factors. Manual controls should only be performed by experienced operators. Due to the complex production process of the rotary kiln, including physical and chemical reaction processes such as fluid mechanics, thermodynamics, and heat conduction, and only a few parameters can be directly measured, most of ...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCG05B19/41865
Inventor 郑秀萍乔景慧周晓杰吴永建岳恒胡毅
Owner NORTHEASTERN UNIV
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