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Method for modeling and optimizing cleaner production of cement clinker sintering process

A cement clinker and clean production technology, which is applied in data processing applications, forecasting, calculations, etc., to achieve the effects of promoting clean production, saving energy and reducing costs, and avoiding risks and economic losses

Active Publication Date: 2013-11-20
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If these results are practiced one by one by changing the operating conditions on the experiment or production equipment, the cost of manpower and material resources will be huge.

Method used

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  • Method for modeling and optimizing cleaner production of cement clinker sintering process
  • Method for modeling and optimizing cleaner production of cement clinker sintering process
  • Method for modeling and optimizing cleaner production of cement clinker sintering process

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Embodiment Construction

[0053] The present invention will be further described in detail below in conjunction with the examples.

[0054] The present invention comprises the following steps:

[0055] Step 1. Create a flowchart

[0056] (1) Select each unit operation model according to the operation tasks of each production process of clinker firing.

[0057] 1) Select the separation module Cyclone and the heat transfer module Heater in Aspen Plus to simulate the gas-solid separation and gas-solid heat transfer tasks of the suspension preheating subsystem.

[0058] 2) Choose the RCSTR module, the mixing module Mixer and the more mature pulverized coal combustion module to simulate part of the fuel combustion, gas mixing, gas-solid heat transfer and decomposition tasks of most raw materials.

[0059] 3) Choose multi-level RCSTR module, gas-solid separation module, mixing module Mixer and pulverized coal combustion module to simulate the tasks of raw meal decomposition, mineral calcination, fuel combu...

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Abstract

The invention relates to a method for modeling and optimizing cleaner production of a cement clinker sintering process. The method comprises the steps of establishing a cement clinker sintering process model in Aspen Plus software according to a material balance relationship and the heat conservation principle of various working procedures in the cement clinker sintering process; setting and inputting data of the cement clinker sintering process, and operating the model until a simulation result meets an error requirement; selecting corresponding energy saving and emission reduction technologies according to actual production requirements, optimizing the cement clinker sintering process model, and optimizing a clinker sintering method. According to the invention, the steady-state model of the cement clinker sintering process is established based on fundamental principles of substance conservation, energy conservation and macroscopic reaction dynamics, thereby being conducive to describing influences imposed on the process by changes of process parameters and adoption of energy saving and emission reduction technologies.

Description

technical field [0001] The invention relates to the technical field of cement firing, specifically, through the process simulation technology, the cement clinker material and energy balance are carried out, and the factors affecting the energy consumption and pollution discharge of the cement clinker firing process are studied and optimized, which is beneficial to the cement industry It is of great significance to realize cleaner production. Background technique [0002] Accompanied by the rapid development of the cement industry, it also brings serious problems of resources, energy and environment. According to statistics, my country's cement output exceeded 2.1 billion tons in 2012, and the production of one ton of Portland cement clinker required 1.4 tons of limestone, 0.2 tons of clay, 0.23 tons of standard coal, and 75 kWh of electricity, while producing 0.9 tons of CO2 gas (of which 60 % comes from the decomposition of calcium carbonate, and the rest is produced by fue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04
Inventor 于海斌王卓贾洋王斌孙朋飞
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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