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GB1397793A - Grinding process - Google Patents

Grinding process

Info

Publication number
GB1397793A
GB1397793A GB1923972A GB1923972A GB1397793A GB 1397793 A GB1397793 A GB 1397793A GB 1923972 A GB1923972 A GB 1923972A GB 1923972 A GB1923972 A GB 1923972A GB 1397793 A GB1397793 A GB 1397793A
Authority
GB
United Kingdom
Prior art keywords
hopper
agglomerant
mill
coolant
liquid
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
GB1923972A
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.)
BOC Group Ltd
BTR Industries Ltd
Original Assignee
BTR Industries Ltd
British Oxigen Ltd
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
Application filed by BTR Industries Ltd, British Oxigen Ltd filed Critical BTR Industries Ltd
Priority to GB1923972A priority Critical patent/GB1397793A/en
Priority to AU54887/73A priority patent/AU5488773A/en
Publication of GB1397793A publication Critical patent/GB1397793A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/18Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B02C19/186Use of cold or heat for disintegrating

Landscapes

  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

1397793 Comminuting elastomers; impact pulverisers BRITISH OXYGEN CO LTD 18 July 1973 [25 April 1972] 19239/72 Heading B2A Elastomeric material is cooled to its embrittlement temperature by contact with a liquid coolant e.g. liquid nitrogen, argon, air or CO 2 or the vapours therefrom, ground and contacted with an anti agglomerant, e.g. silica talc, carbon black, zinc or calcium stearate, kiesselguhr, kaolin, magnesia fibrous glass, fibrous silicate or mica. Precooled material from a hopper 11 Fig 1 is screw fed to a mill 19, discharged via a screen 23 into a fluidised bed apparatus 25 containing anti agglomerant Coolant is supplied at 13. Anti agglomerant in liquid form would be sprayed. In a second embodiment silica from a hopper 75 is metered by a gate 77 into a screw conveyor 63 which transports the elastomer from a hopper 57 to the mill 65. The coolant rate to the mill and hopper 57 are controlled by a thermocouple 81.
GB1923972A 1972-04-25 1972-04-25 Grinding process Expired GB1397793A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1923972A GB1397793A (en) 1972-04-25 1972-04-25 Grinding process
AU54887/73A AU5488773A (en) 1972-04-25 1973-04-26 Grinding process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1923972A GB1397793A (en) 1972-04-25 1972-04-25 Grinding process

Publications (1)

Publication Number Publication Date
GB1397793A true GB1397793A (en) 1975-06-18

Family

ID=10126035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1923972A Expired GB1397793A (en) 1972-04-25 1972-04-25 Grinding process

Country Status (2)

Country Link
AU (1) AU5488773A (en)
GB (1) GB1397793A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017368A1 (en) * 1979-03-15 1980-10-15 Air Products And Chemicals, Inc. Method and apparatus for cryogenic grinding
US4464239A (en) * 1980-02-11 1984-08-07 Tseung Alfred C C Electrocatalyst
US4917834A (en) * 1988-11-16 1990-04-17 General Technology Applications, Inc. Method for forming homogeneous blends of particulate materials
US5053147A (en) * 1990-04-20 1991-10-01 Jannette Gomez Kaylor Methods and compositions for extinguishing fires
ES2606104A1 (en) * 2015-09-21 2017-03-22 Francisco Riera Berenguer System of milling and micronization of plastics with cryogenic nitrogen system (Machine-translation by Google Translate, not legally binding)
CN109481969A (en) * 2018-12-27 2019-03-19 王文斌 Fence type steel construction filter plate
WO2020141272A1 (en) * 2019-01-03 2020-07-09 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and installation for cryogenic crushing of products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109719906A (en) * 2019-03-13 2019-05-07 华域视觉科技(上海)有限公司 A kind of injection mold mandrel structure and injection mold

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017368A1 (en) * 1979-03-15 1980-10-15 Air Products And Chemicals, Inc. Method and apparatus for cryogenic grinding
US4464239A (en) * 1980-02-11 1984-08-07 Tseung Alfred C C Electrocatalyst
US4917834A (en) * 1988-11-16 1990-04-17 General Technology Applications, Inc. Method for forming homogeneous blends of particulate materials
US5053147A (en) * 1990-04-20 1991-10-01 Jannette Gomez Kaylor Methods and compositions for extinguishing fires
ES2606104A1 (en) * 2015-09-21 2017-03-22 Francisco Riera Berenguer System of milling and micronization of plastics with cryogenic nitrogen system (Machine-translation by Google Translate, not legally binding)
CN109481969A (en) * 2018-12-27 2019-03-19 王文斌 Fence type steel construction filter plate
CN109481969B (en) * 2018-12-27 2024-04-12 王文斌 Fence type steel structure filter plate
WO2020141272A1 (en) * 2019-01-03 2020-07-09 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and installation for cryogenic crushing of products
FR3091492A1 (en) * 2019-01-03 2020-07-10 Air Liquide France Industrie Process and installation for cryogenic grinding of products
US12083528B2 (en) 2019-01-03 2024-09-10 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and installation for cryogenic crushing of products

Also Published As

Publication number Publication date
AU5488773A (en) 1974-10-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee