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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Application filed by Mitsubishi Electric CorpfiledCriticalMitsubishi Electric Corp
Priority to JP4918176ApriorityCriticalpatent/JPS52132553A/en
Publication of JPS52132553ApublicationCriticalpatent/JPS52132553A/en
PURPOSE: To decrease the installation cost for the operation control and also to make operation efficient by detecting the freezing and thawing of sludge accurately, by providing a detecting circuit at the control device of a freezing and thawing treatment device for sludge.