On-line calibration type automatic metering and blending system and method for liquid grinding aids

Abstract

The invention provides an on-line calibration type automatic metering and blending system for liquid grinding aids. The on-line calibration type automatic metering and blending system comprises a grinding aid storage tank, a transfer pump, a grinding aid weighing tank, a metering pump, a flow meter, an electromagnetic valve and a DCS control cabinet. An outlet of the grinding aid storage tank is connected with an inlet of the transfer pump through a pipeline. An outlet of the transfer pump is connected with an inlet of the grinding aid weighing tank through a pipeline. An outlet of the grinding aid weighing tank is connected with an inlet of the metering pump through a pipeline. An outlet of the metering pump is connected with an inlet of the flow meter through a pipeline. An outlet of the flow meter is connected with an inlet of the electromagnetic valve through a pipeline. An outlet of the electromagnetic valve is connected with a discharging point pipeline. The signal output end of the flow meter is connected with the signal input end of the DCS control cabinet. The signal output end of the DCS control cabinet is connected with the signal input end of the transfer pump, the signal input end of the metering pump and the signal input end of the electromagnetic valve. The DCS control cabinet is connected with an upper computer. By the adoption of the on-line calibration type automatic metering and blending system for the liquid grinding aids, the continuity, accuracy, calibration and siphon avoidance in cement blending can be improved.

Description

technical field [0001] The invention relates to an on-line correction liquid grinding aid automatic metering and blending system and method. Background technique [0002] At this stage and even for a long period of time, my country will be the world's largest cement producer and consumer. Grinding aids have played an active role in the sustainable development of the cement industry in the production of low-carbon, green, and high-performance cement. An indispensable assistant for industry, it has increased the comprehensive utilization of industrial waste, realized low-carbon, circular economic production, and helped to accelerate the process of energy conservation, emission reduction and green revolution in the cement industry. In the industrial application of grinding aids, in addition to the stability of their own quality, the stability of the blending system added to the grinding process is very important, which will determine the effect of grinding aids on cement grindin...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes an on-line correcting liquid grinding aid automatic metering and blending system and method, which solves the problems in the prior art: the blending system has poor homogeneity due to precipitation, the system is blocked and the flow of grinding aid is interrupted; The homogeneity of the grinding agent is not good or the sediment affects the accuracy of the flowmeter; the flowmeter can be calibrated online; the height difference between the tank body and the feeding point produces siphon phenomenon and other problems

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