Cascade extracting and solvent refreshing method for recycling jelly cables
AssigneeChunghwa Telecom Co., Ltd.
InventorsDaw-Ming Fann, Shiow-Chen Lu, Yih-Chyuan Lin, Jih-Yang Liu, Hsi-Pai Hsu
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Abstract
The method of continuously collecting jelly compounds from jelly filled cable is performed by recycling operation of a solvent by repeatedly heating, cleaning and condensing the recycling solvent used to deprive the jelly compounds of the jelly filled cable. The solvent can be retrieved for reuse unlimited times, and the collected jelly compounds can be purified for reuse too. The method is energy saving with less consumption of solvent. Absolutely no worry of an additional public nuisance.
Claims9
A method of continuously collecting jelly compounds from jelly filled cable by recycling operation of solvent comprising the steps:
- putting a jelly filled cable core in a perforated basket, and then setting said basket in a cleaning tank;
- transferring a solvent into an evaporation and concentration tank and heating said solvent with a fist heater until said solvent boils, and conducting the vaporized solvent into a condenser via a vapor pipe so as to perform heat exchange between said vapor pipe and said cleaning tank thereby heating up said cleaning tank;
- condensing said vaporized solvent in said condenser and then conduction said condensed solvent into said cleaning tank;
- immersing said jelly filled cable in said solvent having the liquid/solid ratio 2/1 (v/w), heating said cleaning tank with said vapor pipe and maintaining the temperature at the solvent boiling point by employing a second heater as an auxiliary means for temperature control, and agitating said solvent with an agitator so as to dissolve the jelly compounds, the operating time being maintained at least 3 minutes after said jelly filled cable has been completely immersed in said solvent, afterwards discharging the solution containing the jelly compounds into said evaporation and concentration tank via a liquid trans portation pipe.
- heating said evaporation and concentration tank so as to concentrate and accumulate the deprived jelly compounds in said evaporation and concentration tank said vaporized solvent being returned to said cleaning tank after being condensed for reuse;
- and
- repeating the step 2 to step 5 so as to continuously deprive jelly compounds of jelly filled cable by recycling operation of solvent.
Dependencies are inferred from the claim text.