Title:
OIL SLUDGE WEIGHT REDUCING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2009/028519
Kind Code:
A1
Abstract:
An oil sludge weight reducing apparatus characterized by including a screw composed
of a screw axle with a steam supply hole and a screw vane helically provided around
the outer circumference of at least a portion of the screw axle; an inner tube with
oil water passage hole provided so as to surround the screw; an outer tube disposed
outside the inner tube so as to provide an oil water discharge interstice between
the same and the inner tube; an oil sludge supply port for supply of oil sludge in
the inner tube; an outer-tube-side steam supply port for supply of steam in the
outer tube; a stopper disposed in the vicinity of the edge of the inner tube on a
residue discharge side so as to provide a residue discharge interstice between
the same and the edge of the inner tube on a residue discharge side; an oil water
discharge port for discharge, outside the apparatus, of the oil water having
been discharged in the oil water discharge interstice; and driving means for
rotary drive of the screw, wherein the ratio of the length from the edge of the inner
tube on an oil sludge supply side to the outer-tube-side steam supply port to the
length of the inner tube is 0.5 or below. The oil sludge weight reducing apparatus
would attain reduction of the amount of oil and hazardous substances contained
in oil sludge to the level allowing landfill disposal by a one-step operation.
More Like This:
Inventors:
MINAMI TATSUHIKO (JP)
Application Number:
PCT/JP2008/065225
Publication Date:
March 05, 2009
Filing Date:
August 20, 2008
Export Citation:
Assignee:
SYSTEM KIKOU CO LTD (JP)
MINAMI TATSUHIKO (JP)
MINAMI TATSUHIKO (JP)
International Classes:
C02F11/00; B01D29/00; B01D29/25; B30B9/14; C02F11/12; C02F11/18
Foreign References:
| JPS5893788A | 1983-06-03 | |||
| JP2000015015A | 2000-01-18 | |||
| JPS61289996A | 1986-12-19 |
Attorney, Agent or Firm:
AKATSUKA, Kenji et al. (1-16Kanda Suda-cho, Chiyoda-k, Tokyo 41, JP)
Download PDF: