AU9048191A - Mould to be used for compacting pellets - Google Patents
Mould to be used for compacting pelletsInfo
- Publication number
- AU9048191A AU9048191A AU90481/91A AU9048191A AU9048191A AU 9048191 A AU9048191 A AU 9048191A AU 90481/91 A AU90481/91 A AU 90481/91A AU 9048191 A AU9048191 A AU 9048191A AU 9048191 A AU9048191 A AU 9048191A
- Authority
- AU
- Australia
- Prior art keywords
- mould
- holes
- spraying
- cleaning
- producing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
- B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
- B30B11/202—Ring constructions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
- C01B32/55—Solidifying
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Glanulating (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Crushing And Grinding (AREA)
Description
Mould to be used for compacting pellets.
The invention concerns an annular mould as used in so-called pelletisers where powder through radial holes in the annular mould is pressed by rollers. By breaking off the bars which are formed this way short pieces with the profile of the hole in the mould are formed. The subject mould of the invention is a special means to compact carbon dioxide powder (solid CO2 at a temperature below minus 56°) into tough bars with a triangle cross section. These bars are very suitable to be used for cleaning surfaces by spraying. It has been proved that the spraying material stays sharp even when some sublimation occurs by the spraying action.
The treatment of surfaces with carbon dioxide particles is known from the American patent Nr. US-A-4389820. It is found that the normal proces of compressing and crushing of solid carbon dioxide results in irregular and blunt spraying material.
The subject of the invention is a mould to produce small bars of heavy compressed carbon dioxide with a triangle cross section. The mould has the form of a ring and is used in a machine where rollers on the inside of the ring press the powdered carbon dioxide into radial holes. These holes are narrowing and converge into a channel with a triangle cross section. The end of the channel carries means to break the bars.
The invention is described with the help of the drawings.
Fig. 1 shows the mould and the rollers.
Fig. 2 shows a cross section of the mould at the position of the holes. Fig. 3 shows the inside of the mould.
Fig. 4 shows the outside of the mould.
Fig. 5 shows the cross section of the space between two holes.
Fig. 6 shows the cross section of the partition between two triangular channels,
Fig. 7 shows a pellet produced with the mould.
Fig. 8 shows an alternative pattern of hales.
In Fig, 1 (1) is the annular mould and (2) the rollers which roll along
the inside (3). Centerlines (4) indicate schematic the position of the holes (5).
Fig. 2 shows that the holes (5) have a converging part (6) that converts in a mainly triangle channel (7) with mainly parallel sides (8). At the end of the channel (7) is a widening outlet (9).
At (10) is indicated that two holes (5) are connected into one hole while the channels (7) are formed by a partition (11). The partition (11) is chamfered (12) at the entry. On the outlet the partition (11) can have a breaking edge (13) which breaks the bars of compressed carbon dioxide.
In Fig. 5 is indicated how walls (14) between holes (5) and (10) are chamfered (15).
In Fig. 7 is shown a spraying particle (19) produced with a annular mould (1) according to the invention.
The pattern of the holes (5) and (10) is concentrated in the middle section (16). The area's (17) along the edge of the inside surface (3) are provided with shallow grooves (18). These grooves (18) prevent jamming of the machine in case of superfluous supply of carbon dioxide. Fig. 8 shows an alternative pattern of singular holes (5).
Claims (1)
- Claims.1] Annular mould for producing by pressing particles meant for cleaning of surfaces by means of spraying characterised in that the mould (1) on the inside (3) is provided of holes (5) and (10) in radial direction which converge to mainly triangle channels (7) with mainly parallel sides (8) which convert into a widening outlet (9) on the outside surface of the mould. 21 Annular mould for producing by pressing particles meant for cleaning of surfaces by means of spraying as in claim 1 characterised in that a part of the holes (5) are combined in two's with a partition (11) between the triangle channels (7) and together with the singular holes (5) form a pattern of nearby placed holes (5), (10) in a disk (16) which is about in the centre of the ring (1).31 Annular mould for producing by pressing particles meant for cleaning of surfaces by means of spraying as in claim 1 and 2 characterised in that the partition (11) between triangle channels (7) on the side directed to the centre is provided with chamfers (12) and on the side of the outlet (9) is provided with a breaking edge (13).41 Annular mould for producing by pressing particles meant for cleaning of surfaces by means of spraying as in claim 1, 2 and 3 characterised in that the inside surface (3) of the ring is provided with grooves (18) which reach from the edge to close to the holes (5), (10),51 Annular mould for producing by pressing particles meant for cleaning of surfaces by means of spraying as in claim 1, 2, 3, and 4 characterised in that the mould (1) is used to compress dry ice (powdered solid CO2) into short bars (19) with a triangular profile.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9002605A NL9002605A (en) | 1990-11-28 | 1990-11-28 | DIE FOR PRESSING PELLETS. |
NL9002605 | 1990-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
AU9048191A true AU9048191A (en) | 1992-06-25 |
Family
ID=19858049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU90481/91A Abandoned AU9048191A (en) | 1990-11-28 | 1991-11-28 | Mould to be used for compacting pellets |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0559747A1 (en) |
JP (1) | JPH06502800A (en) |
AU (1) | AU9048191A (en) |
NL (1) | NL9002605A (en) |
WO (1) | WO1992009525A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9301237A (en) * | 1993-07-14 | 1995-02-01 | Harko Bv | Method for treating surfaces with cryogenic particles |
NL194233C (en) * | 1994-08-17 | 2001-10-02 | Huibert Konings | Pelletizing device, for pressing cryogenic particles. |
NL1013692C2 (en) * | 1999-11-29 | 2001-05-30 | Huibert Konings | Method for manufacturing cryogenic particles from liquid carbonic acid. |
CN105584087A (en) * | 2015-12-23 | 2016-05-18 | 格薪源生物质燃料有限公司 | Vertical ring die biomass fuel briquetting forming machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1388692A (en) * | 1963-02-15 | 1965-02-12 | Richard Sizer Ltd | Improved extrusion die especially for moldable or plastic materials |
FR2134874A5 (en) * | 1971-04-23 | 1972-12-08 | Novacel Sa | Multi section extrusion die - for mfg irregular sodium sulphate crystals for seeding synthetic sponges |
US3702519A (en) * | 1971-07-12 | 1972-11-14 | Chemotronics International Inc | Method for the removal of unwanted portions of an article by spraying with high velocity dry ice particles |
DE8803364U1 (en) * | 1988-03-12 | 1988-05-05 | Bloch, Klaus, 5205 St Augustin, De | |
FR2633706B1 (en) * | 1988-06-29 | 1992-02-14 | Anhydride Carbonique Ind | SOLID CARBON DIOXIDE PRODUCT, PACKAGING DEVICE AND PRODUCT PACKAGING METHOD |
-
1990
- 1990-11-28 NL NL9002605A patent/NL9002605A/en not_active Application Discontinuation
-
1991
- 1991-11-28 WO PCT/NL1991/000241 patent/WO1992009525A1/en not_active Application Discontinuation
- 1991-11-28 JP JP4502177A patent/JPH06502800A/en active Pending
- 1991-11-28 AU AU90481/91A patent/AU9048191A/en not_active Abandoned
- 1991-11-28 EP EP92900552A patent/EP0559747A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
NL9002605A (en) | 1992-06-16 |
WO1992009525A1 (en) | 1992-06-11 |
JPH06502800A (en) | 1994-03-31 |
EP0559747A1 (en) | 1993-09-15 |
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