METHOD FOR MANUFACTURING PAVEMENT BLOCK USING WASTE VINYL AND SAND

PURPOSE: A method for manufacturing pavement blocks using waste vinyl and sand is provided to form various shaped pavement blocks according to shapes of molds, safely use waste sands of a foundry containing sodium silicate and simplify the process by uniformly mixing the gel state of waste vinyl and...

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Bibliographische Detailangaben
Hauptverfasser:	MOON, CHAN SUK, YEU, IN KYEUNG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE: A method for manufacturing pavement blocks using waste vinyl and sand is provided to form various shaped pavement blocks according to shapes of molds, safely use waste sands of a foundry containing sodium silicate and simplify the process by uniformly mixing the gel state of waste vinyl and waste sands of a foundry in a ratio of 7:3 after transferring waste vinyl with a screw type rotation device and heating to a temperature of 210 to 240 deg.C at the same time so that the heated waste vinyl is made into the gel state. CONSTITUTION: The method for manufacturing pavement blocks comprises the processes of melting the waste vinyl into the gel state by heating the waste vinyl to a temperature of 210 to 240 deg.C as passing waste vinyl through screw type devices and a transferring tube on outer side of which a heater is installed; injecting the mixed materials into a mold after uniformly mixing the melted waste vinyl with waste sand in a mixer in a ratio of 7:3; and forming a mold by cooling the mixed materials of the injected waste vinyl and waste sand with a cooler.