Cement raw material batching closed-loop control method and system

Abstract

The invention discloses a cement raw material batching closed-loop control method and system. The method comprises the steps of: S1, acquiring raw material chemical components, coal ash chemical components, raw coal industrial analysis and factory clinker heat consumption; S2, selecting a clinker rate value; S3, performing ingredient calculation; S4, acquiring a neutron system error, and calculating a control target value of an actual raw material rate value participating in control; S5, acquiring a time difference t when the raw material enters and exits from a homogenizing silo; S6, performing raw coal pile changing: taking a new pile of coal till a use time, and outputting a raw material rate value adjustment moment before raw coal pile changing; S7, adjusting the start-stop probabilityvalue of a raw material mill; S8, performing emergency management and control on raw material proportioning; and S9, processing abnormal conditions; the system comprises: a clinker rate value and clinker heat consumption optimizing and positioning raw material burdening calculation unit, a dynamic material bin, a bin consumption balance management and budget unit, a raw material burdening calculation unit, an online neutron burdening control unit, a full-automatic laboratory detection unit and an abnormal condition processing unit.

Description

technical field [0001] The invention relates to the technical field of cement raw meal batching control, in particular to a cement raw meal batching closed-loop control method and system. Background technique [0002] In the traditional cement industry, the ratio of raw materials can be calculated statically through the calculation formula of ingredients. However, due to the non-uniformity and stability of raw material components, the lag of calculation results is prominent. With the application of neutron on-line detection and control technology in the cement industry, the influence of the non-uniform stability of raw material composition on ingredients has been solved. However, due to the existence of warehouses, warehouses and storage yards in enterprises, the problem of matching coal materials has become prominent. Contents of the invention [0003] In order to solve the deficiencies in the prior art and realize the purpose of raw material closed-loop control, the pres...

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Problems solved by technology

[0002] In the traditional cement industry, the ratio of raw materials can be calculated statically through the calculation formula of ingredients, but due to the non-uniformity and stability of raw material components, the problem of lagging calculation results is prominent

With the application of neutron on-line detection and control technology in the cement industry, the influence of non-uniform stability of raw material composition on ingredients has been solved. However, due to the existence of warehouses, warehouses and storage yards in enterprises, the problem of matching coal materials has become prominent.

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