GB1431591A - Method and apparatus for making compacted pellets of solid phase carbon dioxide - Google Patents
Method and apparatus for making compacted pellets of solid phase carbon dioxideInfo
- Publication number
- GB1431591A GB1431591A GB3963573A GB3963573A GB1431591A GB 1431591 A GB1431591 A GB 1431591A GB 3963573 A GB3963573 A GB 3963573A GB 3963573 A GB3963573 A GB 3963573A GB 1431591 A GB1431591 A GB 1431591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- die
- passages
- roller
- carbon dioxide
- plate
- 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.)
- Expired
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Glanulating (AREA)
Abstract
1431591 Extruding solid carbon dioxide CHEMETRON CORP 21 Aug 1973 [28 Aug 1972] 39635/73 Heading B5A [Also in Divisions F2 and F4] Carbon dioxide rods, issuing from extrusion passages 52, Figs. 2 and 3, of a roller and ring extruder, are subjected to a back pressure applied by resilient spring members 76 to prevent rupture of the rods arising from the escape of entrapped CO 2 . The orifices 52 extend radially outwardly through an annular die wall provided with an annular interior groove 115, within which a freely rotatable roller 80 engages with an orbiting motion around the groove to effect the extrusion. The die passages 52 have a 30 degree inlet taper, followed by a taper of 3 to 5 degrees. The passages 52, Fig. 7, are arranged in upper and lower rows, and as upper and lower pairs of adjacent passages in each row opening out into a respective upper, and a lower pocket 64, defined between side walls 58 projecting from the die wall, and either an upper or lower surface of a flange 66 projecting from the die wall between the side walls 58. The members 76 comprise spring steel of generally "U"-shape, with one member being provided in each pocket 64 for a pair of passages and with the upper and lower members 76 of aligned pockets 64 each being secured against the die face, about a centring pin 78, by spools 74 and washers 70 secured by bolts 72. Each arm of a member 76 is resiliently urged against a pocket side wall 58, from which it is displaced in exerting back pressure on the extrusions, which are broken off either by their own weight or by contact with an annular conical deflector (77), Fig. 1 (not shown), surrounding the die. In operation, the carbon dioxide is extruded from snow formed by the injection of CO 2 liquid from. nozzles 204 spaced at 90 degree intervals around the interior of the die wall. The injection. is effected automatically in synchronism with the orbiting of the roller 80, and in sequence from adjacent nozzle pairs, into the region B, Fig. 3, of clearance between the die wall and roller, as the injection is similarly terminated from the adjacent nozzle pairs within the region A, in which the roller 80 exerts extrusion pressure on the snow. The automatic control of the liquid CO 2 delivery to the nozzles 204 is effected from a valve 156 on the underside of the die, Figs. 2 and 5, to a chamber 168 of which valve liquid CO 2 is constantly delivered from an inlet conduit 26, via a passage through the die 42a, 148, 162, and valve inlet port 166. The liquid CO 2 is delivered to each nozzle 204, via a passage through the die 42b, 154, 200, terminating, in a valve outlet port 196 in a stationary valve seat plate 158. The ports 196 are spaced at 90 degree intervals around the plate 158, and are obturated and opened in the required sequence by a closure plate 186, comprising an approximately 180 degree segment which continuously rotates, under spring bias against the plate 158, so that the adjacent nozzle pairs sequentially inject and cease to inject the CO 2 . The closure plate 186 is rotated by a. pin connection 194 to a plate 182, keyed to a shaft 174 which is rotated, via a pin 180 and slot 172a connection, by a shaft 82 on which the roller 80 is mounted for its orbiting motion about the axis 32 of the die. CO 2 gas is vented through filters 132 into upper and lower annular chambers 122, 146 around the die, and from the upper chamber 122 at a pair of outlets 124, 126, 128, with communication of the lower chamber 146 with the upper being provided by radial passages 42c and vertical passages 42. The filters 132 comprise stainless steel of 0À31 inch thickness having 0À30 inch diameter perforations, and comprise radially extending "V"- shaped corrugations of 45 degree angle and which enlarge in the outward radial direction. The filtering effect is enhanced by a layer of CO 2 snow which forms between the filters and the side edges of the roller 80.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28426472A | 1972-08-28 | 1972-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1431591A true GB1431591A (en) | 1976-04-07 |
Family
ID=23089511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3963573A Expired GB1431591A (en) | 1972-08-28 | 1973-08-21 | Method and apparatus for making compacted pellets of solid phase carbon dioxide |
Country Status (5)
Country | Link |
---|---|
US (1) | US3786645A (en) |
JP (1) | JPS5335795B2 (en) |
AU (1) | AU471606B2 (en) |
CA (1) | CA1009409A (en) |
GB (1) | GB1431591A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT402097B (en) * | 1993-08-05 | 1997-01-27 | Union Ind Compr Gase Gmbh | DEVICE FOR INTAKING CARBON DIOXIDE IN SOLID FORM IN LIQUID OR SOLID SUBSTANCES |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51111499A (en) * | 1975-03-27 | 1976-10-01 | Nippon Sanso Kk | Device for dry ice pellets production |
JPS57205311A (en) * | 1981-06-09 | 1982-12-16 | Nippon Tansan Kk | Manufacturing apparatus for dry ice |
US4780119A (en) * | 1987-10-02 | 1988-10-25 | Tomco2 Equipment Company | Method and apparatus for producing carbon dioxide units |
DE4440875A1 (en) * | 1994-11-16 | 1996-06-05 | Santrade Ltd | Device for the production of pastilles |
US6089100A (en) * | 1997-08-06 | 2000-07-18 | The Penn State Research Foundation | Real-time spatial particulate mass deposition tester |
US6240743B1 (en) | 1999-11-08 | 2001-06-05 | Russel G. Allen, Jr. | Gas venting device for dry ice pelletizer and methods for retrofitting same onto existing dry ice pelletizers |
US6442968B1 (en) * | 2001-10-30 | 2002-09-03 | Albert S. Elias | Apparatus for rapid, high volume production of solid CO2 pellets |
US7021081B2 (en) * | 2003-11-03 | 2006-04-04 | Airgas Dry Ice | Dry ice block extruder |
JP4815110B2 (en) * | 2004-08-13 | 2011-11-16 | 株式会社シュトルツ | Dry ice pellet manufacturing method and apparatus |
AT521707B1 (en) * | 2018-10-02 | 2023-04-15 | Ludwig Schaider | Device for making pellets |
CN109279604B (en) * | 2018-11-30 | 2020-04-10 | 厦门理工学院 | High-density carbon dioxide forming equipment |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE484570C (en) * | 1927-07-27 | 1929-10-17 | Waldemar Hessling | Method and machine for compressing solid carbon dioxide |
US1919698A (en) * | 1927-07-27 | 1933-07-25 | Elvire Hessling De Werner | Apparatus for the agglomeration of solid carbon dioxide |
GB477834A (en) * | 1936-06-30 | 1937-12-30 | Waldemar Hessling | Method of and apparatus for the transport of solid carbon dioxide or 'dry ice' |
GB477587A (en) * | 1936-06-30 | 1937-12-30 | Waldemar Hessling | Process of and apparatus for the preparation of solid carbon dioxide in agglomeratedform |
US2252900A (en) * | 1940-09-21 | 1941-08-19 | Edgar N Meakin | Pellet forming apparatus |
US3576112A (en) * | 1968-11-29 | 1971-04-27 | Chemetron Corp | Filtering gas from pelletized co{hd 2 {l snow |
US3660986A (en) * | 1969-12-03 | 1972-05-09 | Chemetron Corp | Solidified gas pellets |
-
1972
- 1972-08-28 US US00284264A patent/US3786645A/en not_active Expired - Lifetime
-
1973
- 1973-08-16 CA CA178,977A patent/CA1009409A/en not_active Expired
- 1973-08-17 AU AU59328/73A patent/AU471606B2/en not_active Expired
- 1973-08-21 GB GB3963573A patent/GB1431591A/en not_active Expired
- 1973-08-27 JP JP9605473A patent/JPS5335795B2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT402097B (en) * | 1993-08-05 | 1997-01-27 | Union Ind Compr Gase Gmbh | DEVICE FOR INTAKING CARBON DIOXIDE IN SOLID FORM IN LIQUID OR SOLID SUBSTANCES |
Also Published As
Publication number | Publication date |
---|---|
CA1009409A (en) | 1977-05-03 |
JPS5335795B2 (en) | 1978-09-28 |
JPS4959095A (en) | 1974-06-07 |
AU5932873A (en) | 1975-02-20 |
AU471606B2 (en) | 1976-04-29 |
US3786645A (en) | 1974-01-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |