Patent EP0178802A1 successfully refreshed from Google Patents.
EP0178802A1
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Compression and volume reduction treatment apparatus
Assignee: NGK Insulators Ltd
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Filing: 1985-09-19
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Granted: —
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Expires: 2005-09-19
Abstract
Abstract A compression and volume reduction treatment apparatus for solid wastes including a compression sleeve (4) for receiving therein a cylindrical vessel (20) filled with the solid wastes and a press ram (6) arranged above said compression sleeve (4) movably upward and downward for compressing at high pressure the cylindrical vessel in the compression sleeve (4). According to the invention, the compression sleeve comprises an upper straight large diameter portion (7a) a lower straight small diameter portion (7c) and an intermediate tapered portion (7b), thereby compressing the cylindrical vessel (20) and reducing its volume in three dimensional directions by compressing the vessel radially inwardly at the tapered inner surface of the intermediate tapered portion (7b) and compressing axially at the inner surface of the lower straight small diameter portion (7c) when the cylindrical vessel in said upper straight large diameter portion (7a) is urged by said press ram (6) in a uniaxial direction.
Inventors
- 👤 Kojuro Yamamoto
- 👤 Katsutoshi Torita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 10:00
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/32; B09; B09B; B09B3/00; B09B3/30; B09B3/32; B30B9/30; G; G21; G21F; G21F9/00; G21F9/28; G21F9/34; Y; Y10; Y10S; Y10S100/00; Y10S100/902
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
181 words
A compression and volume reduction treatment apparatus for solid wastes including a compression sleeve for receiving therein a cylindrical vessel filled with the solid wastes and a press ram arranged above said compression sleeve movably upward and downward for compressing at high pressure the cylindrical vessel in the compression sleeve, wherein said compression sleeve comprises an upper straight large diameter portion having a straight cylindrical inner surface, a lower straight small diameter portion having a straight cylindrical inner surface whose inner diameter is smaller than that of said upper straight large diameter portion, and an intermediate tapered portion whose inner surface is tapered downward to connect said straight cylindrical inner surfaces of said upper and lower portions, thereby compressing said cylindrical vessel and reducing its volume in three dimensional directions by compressing said vessel radially inwardly at the tapered inner surface of said intermediate tapered portion and compressing axially at said inner surface of said lower straight small diameter portion when the cylindrical vessel in said upper straight large diameter portion is urged by said press ram in a uniaxial direction.
Claim 2
Dependent Claim
181 words
A compression and volume reduction treatment apparatus for solid wastes including a compression sleeve for receiving therein a cylindrical vessel filled with the solid wastes and a press ram arranged above said compression sleeve movably upward and downward for compressing at high pressure the cylindrical vessel in the compression sleeve, wherein said compression sleeve comprises an upper straight large diameter portion having a straight cylindrical inner surface, a lower straight small diameter portion having a straight cylindrical inner surface whose inner diameter is smaller than that of said upper straight large diameter portion, and an intermediate tapered portion whose inner surface is tapered downward to connect said straight cylindrical inner surfaces of said upper and lower portions, thereby compressing said cylindrical vessel and reducing its volume in three dimensional directions by compressing said vessel radially inwardly at the tapered inner surface of said intermediate tapered portion and compressing axially at said inner surface of said lower straight small diameter portion when the cylindrical vessel in said upper straight large diameter portion is urged by said press ram in a uniaxial direction.
Claim 3
Dependent Claim
50 words
An apparatus as set forth in claim 1, wherein said press ram is formed on its outer circumferential surface with a number of ridges in its axial direction and said inner surfaces of said compression sleeve are formed with a number of longitudinal grooves engaging ridges of the press ram.
Claim 4
Dependent Claim
29 words
An apparatus as set forth in claim 2, wherein bottoms of said longitudinal grooves are rectilinearly continuous from an upper end to a lower end of said compression sleeve.
Claim 5
Dependent Claim
36 words
An apparatus as set forth in claim 1, 2 or 3 wherein said inner diameter of said lower straight small diameter portion of the compression sleeve is smaller than an outer diameter of the cylindrical vessel.
Claim 6
Dependent Claim
66 words
An apparatus as set forth in claim 1, wherein2, 3 or 4 said press ram is made as a duplicate press ram comprising an outer press ram engageable in said lower straight small diameter portion of the compression sleeve and a pushing-in press ram provided in said outer press ram so as to be movable relatively to and in moving directions of the outer press ram.
Claim 7
Dependent Claim
94 words
An apparatus as set forth in claim 1,lwherein said lower straight small diameter portion is made by a different part detachable from said upper straight larger diameter portion and the intermediate tapered portion integral therewith, and said apparatus comprises a pre-compression device having a pushing press ram for compressing the cylindrical vessel radially inwardly at the intermediate tapered portion into the lower straight small diameter portion and a main compression device in which the radially inwardly compressed cylindrical vessel is compressed axially in the lower straight small diameter portion transferred from the pre-compression device.
Claim 8
Dependent Claim
48 words
An apparatus as set forth in claim 6, wherein said pre-compression device is provided on a base common to said main compression device, and a slide base is provided on said base enabling said lower straight small diameter portion to move between said pre-compression and main compression devices.
Claim 9
Independent Claim
32 words
An apparatus as set forth in any preceding claim, wherein shapes of said press ram and of an interior of said compression sleeve are any one of circular, quadrilateral and hexagonal shapes.
References Cited (Backward Citations)
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