GB1217923A - Method of, and apparatus for pulverising materials - Google Patents

Method of, and apparatus for pulverising materials

Info

Publication number
GB1217923A
GB1217923A GB56038/68A GB5603868A GB1217923A GB 1217923 A GB1217923 A GB 1217923A GB 56038/68 A GB56038/68 A GB 56038/68A GB 5603868 A GB5603868 A GB 5603868A GB 1217923 A GB1217923 A GB 1217923A
Authority
GB
United Kingdom
Prior art keywords
gas
valve
hopper
heat exchanger
sensor
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
Application number
GB56038/68A
Inventor
Hans Beike
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19671607462 external-priority patent/DE1607462B1/en
Application filed by Individual filed Critical Individual
Publication of GB1217923A publication Critical patent/GB1217923A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B02C19/186—Use of cold or heat for disintegrating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S241/00—Solid material comminution or disintegration
    • Y10S241/37—Cryogenic cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

1,217,923. Comminuting at low temperatures, H. BEIKE. 26 Nov., 1968 [27 Dec., 1967], No. 56038/68. Heading B2A. [Also in Division F4] Material is rendered brittle by passing it first through a stream of gas produced by evaporation of liquid cooling agent followed by immersion in a low temperature liquid followed by pulverisation in a mill 18. Granular or lumpy material in a hopper 1 is supplied by a valve 2 to a heat exchanger 3. A sensor 4 stops or starts the valve 2 when an upper limit 5 or lower limit 6 is reached respectively. Liquid nitrogen is supplied via a valve 7 to the charged vessel 3 under control of a sensor 9, and rises through the charge so that the surface temperature is approximately that of the non-cooled charge. When an excess pressure develops a valve 11 opens and the gas escapes into the hopper 1 via a perforated sheet 14. When the desired temperature in vessel 3 is obtained the sensor 9 actuates a worm 17 to supply the mill 18. This may be a conical disc or roller mill. Comminuted material is delivered via a valve 22 to a further fluidized-bed type counter-current heat exchanger 23 having a gas chamber 25, porous plate 26 and container 27. The apparatus is energized by a blower 28. The gas is circulated throughout the apparatus via a pipe 31. Ground material is finally delivered to a storage container 35. In a further embodiment the cooled gas from the device 23 may be used to cool the material in the hopper. A second gas, e.g. dry air may be used in the second heat exchanger, drawn in by the blower and supplied through the heat exchanger 23 to the space 13, in which case the hopper 1 is insulated.
GB56038/68A 1967-12-27 1968-11-26 Method of, and apparatus for pulverising materials Expired GB1217923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671607462 DE1607462B1 (en) 1967-12-27 1967-12-27 Process for the fine comminution of solid substances made by immersion in liquefied gas

Publications (1)

Publication Number Publication Date
GB1217923A true GB1217923A (en) 1971-01-06

Family

ID=5681390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56038/68A Expired GB1217923A (en) 1967-12-27 1968-11-26 Method of, and apparatus for pulverising materials

Country Status (3)

Country Link
US (1) US3614001A (en)
AT (1) AT289525B (en)
GB (1) GB1217923A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49121372A (en) * 1973-03-26 1974-11-20
WO1986000827A1 (en) * 1984-07-26 1986-02-13 University Of Queensland Comminution of coal, ores and industrial minerals and rocks

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2013637A1 (en) * 1968-07-25 1970-04-03 George Et Cie Sprl
US3718284A (en) * 1971-04-26 1973-02-27 V Richardson Method of and apparatus for communiting rubber tires
US3771729A (en) * 1971-06-17 1973-11-13 Air Prod & Chem Cryogenic comminution system
US3897010A (en) * 1971-07-02 1975-07-29 Linde Ag Method of and apparatus for the milling of granular materials
FR2194132A5 (en) * 1972-07-27 1974-02-22 Air Liquide
FR2352589A1 (en) * 1976-05-28 1977-12-23 Air Liquide PROCESS FOR FRAGILIZING THE TEGUMENTS OF SMALL-SIZED SEEDS
US4483488A (en) * 1981-06-30 1984-11-20 Air Products And Chemicals, Inc. Method and apparatus for recovering thermoplastic from coated fabric scrap
US5887750A (en) * 1994-03-07 1999-03-30 James L. Popp Commodity container
US5456085A (en) * 1994-03-07 1995-10-10 Popp; James L. Process and apparatus for cryogenically cleaning residue from containers and reducing the bulk volume thereof
US5606860A (en) * 1994-03-07 1997-03-04 Popp; James L. Process and apparatus for cryogenically cleaning residue from containers and reducing the bulk volume thereof
NL1004292C2 (en) * 1996-10-16 1998-04-20 Cargill Bv Method and device for comminuting and dewatering wet gluten.
CN104307612B (en) * 2014-08-25 2016-06-22 云南天保桦生物资源开发有限公司 Herba Dendrobii micronized pulverization method
WO2016092457A1 (en) * 2014-12-09 2016-06-16 Frewitt Fabrique De Machines Sa Vacuum grinding system and method
US9943854B1 (en) 2015-06-26 2018-04-17 Christoperh T. Melnyk Cryomill system
CN110523507B (en) * 2019-09-05 2020-11-27 重庆市富丰水泥集团特种水泥有限公司 Energy-concerving and environment-protective cement processing is with refining equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919862A (en) * 1953-08-31 1960-01-05 Knapsack Ag Process and apparatus for comminuting solid viscous substances, with a liquefied gas as a precooling agent
US2879005A (en) * 1954-12-29 1959-03-24 Melvin Sobel Method of refining scrap plastic and apparatus therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49121372A (en) * 1973-03-26 1974-11-20
JPS5610100B2 (en) * 1973-03-26 1981-03-05
WO1986000827A1 (en) * 1984-07-26 1986-02-13 University Of Queensland Comminution of coal, ores and industrial minerals and rocks
US4721256A (en) * 1984-07-26 1988-01-26 University Of Queensland Comminution of coal, ores and industrial minerals and rocks

Also Published As

Publication number Publication date
AT289525B (en) 1971-04-26
US3614001A (en) 1971-10-19

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