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Control method for adding water into mixture of sintering machine

A control method and technology for mixing materials, which are applied to controllers with specific characteristics, electric controllers, etc., can solve problems such as the determination of adjustment parameters affecting the automatic control system, the inaccurate setting of water addition, and the difficulty in determining the range of parameters. Achieve the effect of improving the accuracy of feedback correction, solving the lag problem of mixing and adding water, and improving the accuracy and real-time performance.

Active Publication Date: 2017-02-22
BEIJING ARITIME INTELLIGENT CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During on-site commissioning, it is difficult to determine the parameter range of feedback correction control, which affects the determination of the adjustment parameters of the automatic control system, resulting in prolonged commissioning cycle and inaccurate setting of water addition

Method used

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  • Control method for adding water into mixture of sintering machine
  • Control method for adding water into mixture of sintering machine
  • Control method for adding water into mixture of sintering machine

Examples

Experimental program
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Effect test

Embodiment 1

[0031] This embodiment provides a control method for adding water to the sintering machine mixture, including the following steps:

[0032] Step 1. First, set the target moisture content of the mixture according to the purpose of the mixture, and then put the raw materials into the transmission area at multiple feeding points. The transmission area is a conveyor belt for transporting the falling raw materials into the mixing area. The conveyor belt is provided with a raw material moisture meter for measuring the moisture content of the original raw material, the raw material mass scale is installed on the feeding point, and the water flow meter is installed on the control valve of the water inlet system, and the raw material mass scale is used to measure the raw material The total amount of water entering is measured by a water flow meter.

[0033] Step 2. Measure the real-time moisture rate of the mixture through the mixing moisture meters at multiple tracking measurement poi...

Embodiment 2

[0037] Different from Example 1, the real-time original tracking moisture rate of raw materials is calculated by the PID control module according to the real-time moisture content of the measured mixture, the real-time water addition amount and the real-time addition total amount of raw materials, and obtained after fuzzy processing Raw material tracking moisture rate correction value KD, the calculation of the raw material tracking moisture rate correction value KD firstly calculates corresponding The original tracking moisture ratio MI1 of multiple raw materials, the calculation formula of the original tracking moisture ratio MI1 of the raw materials is:

[0038] A plurality of raw material original tracking moisture ratios MI1 and raw material original moisture ratios MI0 pass through the fuzzy calculation module to obtain the corrected output value of the raw material tracking moisture ratio correction value KD.

[0039] Such as figure 2As shown, the fuzzy calculation ...

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Abstract

The invention relates to the technical field of water adding into mixtures of sintering machines and especially discloses a control method for adding water into a mixture of a sintering machine. The control method comprises the following steps of first, setting a target moisture ratio of the mixture according to the application of the mixture, feeding raw materials into a transmission area at a plurality of feeding points, metering the total inlet amount of the raw materials by a raw material mass weigh, and metering the total inlet amount of water by a water flowmeter; and arranging a plurality of mixed moisture instruments for tracking measurement points in a mixing area, so as to measure a real-time moisture ratio of the mixture. A PID (Proportion Integration Differentiation) fuzzy control system connected with the mixed moisture instruments, the raw material mass weigh and the water flowmeter comprises a PID control module and a fuzzy computing module, a set value of the water adding volume is obtained through calculation and fuzzy processing for data of the moisture ratio of the mixture, the mass of the raw materials, the target moisture ratio and the water adding mass which are received in real time, so as to realize the accuracy control for the water adding volume of the mixture. The problem that a control way of adding water into a mixture is lagged behind in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of adding water to a sintering machine mixture, in particular to a control method for adding water to a sintering machine mixture. Background technique [0002] When sintering the mixture, moderate moisture can improve the air permeability of the material layer. In addition to making the material into balls and improving the particle size composition, the moisture covers the surface of the particles and acts as a lubricant to make the resistance overcome when the airflow passes through the gaps between the particles. It can also limit the sintering zone to a narrow range. But too much water will make the particle size composition of the material worse, make the water vapor condensation of the material serious, and thicken the over-humidity layer. The process of adding water to sintering is to keep the mixture at a certain moisture rate by adding water to the primary mixer and secondary mixer to achieve bett...

Claims

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Application Information

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IPC IPC(8): G05B11/42
Inventor 路广洲张巍郑志彬马燕赵蕊张磊
Owner BEIJING ARITIME INTELLIGENT CONTROL
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