Super-critical fluid assisted waste rubber powder premixing device

• Main Authors: XIN ZHENXIANG, TAN QINYAN, JI KUIJIANG, GAO CHANGYUN, ZHAO DONGMEI
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2012
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

The invention provides a device for premixing the waste rubber powder with assistant such as a vulcanizing agent and a softening agent with the assistant of the super-critical fluid. The device comprises a high pressure kettle capable of bearing a certain super-critical fluid pressure, a rotary mixing device arranged in the kettle, a super-critical fluid transfer system, a heating and temperature control system, a pressure display and control system, a pressure releasing device and the like. According to the device for premixing the waste rubber powder, due to the ultrahigh permeation property and dispersion property of the super-critical fluid, the assistants such as a de-sulfurizing agent and a softening agent can be used to disperse into the rubber powder by a mechanical mixing device under a certain temperature and a super-critical fluid pressure, based on ; in this way, the fast pre-mixing of the waste rubber powder and assistants can be achieved, thereby enhancing the rate and the effect of the de-sulfu