A condensation and sedimentation system for zinc powder purification

By employing a multi-module collaborative data processing and long short-term memory network model in the zinc powder purification condensation sedimentation system, the measurement data of the infrared temperature sensor is dynamically calibrated, solving the problem of nonlinear deviation in infrared temperature measurement caused by zinc film deposition in the quartz window. This achieves precise correction of the condensation chamber temperature, ensuring production stability and product quality.

CN121896467BActive Publication Date: 2026-06-26JIANGSU TIANCHENG ZINC TECH CO LTD
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Patent Information

Application Number
CN202610363220.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-03-24
Publication Date
2026-06-26
Estimated Expiration
2046-03-24

AI Technical Summary

Technical Problem

In existing zinc powder purification condensation sedimentation systems, the non-contact monitoring scheme using a quartz window and infrared thermometer has temperature measurement deviations, which leads to the control system misjudging the cooling intensity, affecting production continuity and product quality.

Method used

By employing a radiation intensity time-series acquisition module, a frequency domain signal analysis and calculation module, a signal coherence factor solution module, a transmittance attenuation coefficient estimation module, and a metal thin film radiation compensation module, combined with a long short-term memory network model, the measurement data of the infrared temperature sensor is dynamically calibrated to achieve accurate correction of the condenser temperature.

Benefits of technology

By using multi-module collaborative data processing logic, the temperature of the condensation chamber is accurately corrected, avoiding misjudgments in the control system caused by false infrared temperature measurement data, thus ensuring the stability of the zinc powder purification process and product quality.

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Abstract

The application belongs to the technical field of zinc powder purification, and provides a condensation and sedimentation system for zinc powder purification, which comprises the following steps: collecting a time sequence of original radiation intensity of a condensation chamber, performing frequency spectrum analysis through fast Fourier transform, calculating energy values of high and low frequency band frequency domain signals, solving a signal coherence factor and calculating a transmittance attenuation coefficient, constructing a metal thin film radiation compensation model based on a long short-term memory network, inputting the attenuation coefficient and the time sequence of original radiation intensity to output a corrected real temperature of the condensation chamber, expanding an inference layer of a full connection neural network structure, outputting a calibrated attenuation coefficient through the inference layer, selecting an effective attenuation coefficient input model by comparing a deviation threshold value, dynamically responding to temperature measurement nonlinear attenuation caused by zinc film deposition, guaranteeing production continuity and product quality of zinc powder purification, adapting to industrial multi-working condition operation requirements, being convenient to operate and controllable in cost.
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