Filter unit and high-pressure sizing apparatus

A high-pressure sizing apparatus comprising:

• a sealed chamber comprising a first pressureproof housing comprising a sealing part and a second pressureproof housing comprising a sealing part, each said sealing part comprising an opposed surface in close contact;
• a filter unit set in an area proximate to each said sealing part of said sealed chamber, and adapted to partition an inner empty space into a first pressureproof housing area and a second pressureproof housing area;
• an inlet communicating with said first pressureproof housing area partitioned by said filter unit for introducing a substance for treatment by sizing under pressure into said sealed chamber;
• an outlet communicating to said second pressureproof housing area partitioned by said filter unit for discharging the substance after sizing from said sealed chamber;
• and
• temperature controlling means disposed on an outer surface of said first pressureproof housing for controlling temperature of said substance being introduced for treatment,
• wherein said filter unit comprises:
• a pressureproof supporting means for supporting a supporting plate comprising orifices, said orifices comprising openings with a larger diameter in one surface and openings with a smaller diameter in another surface;
• and
• a membrane filter disposed on said surface of said supporting plate comprising larger-diameter openings in said first pressureproof housing area.

A high-pressure sizing apparatus comprising:

• a sealed chamber comprising a first pressureproof housing comprising a sealing part and a second pressureproof housing comprising a sealing part, each said sealing part comprising an opposed surface in close contact;
• a filter unit set in an area proximate to each said sealing part of said sealed chamber, and adapted to partition an inner empty space into a first pressureproof housing area and a second pressureproof housing area;
• an inlet communicating with said first pressureproof housing area partitioned by said filter unit for introducing a substance for treatment by sizing under pressure into said sealed chamber;
• an outlet communicating to said second pressureproof housing area partitioned by said filter unit for discharging the substance after sizing from said sealed chamber;
• and
• temperature controlling means disposed on an outer surface of said first pressureproof housing for controlling temperature of said substance being introduced for treatment,
• wherein said filter unit comprises:
• a pressureproof supporting means for supporting a supporting plate comprising orifices, said orifices comprising openings with a larger diameter in one surface and openings with a smaller diameter in another surface;
• and
• a membrane filter cassette comprising a membrane filter and a supporting means for supporting said membrane filter, disposed on said surface of said supporting plate comprising larger-diameter openings in said first pressureproof housing area.