GB1404060A - Fluid energy mill and process for comminution - Google Patents

Fluid energy mill and process for comminution

Info

Publication number
GB1404060A
GB1404060A GB4735572A GB4735572A GB1404060A GB 1404060 A GB1404060 A GB 1404060A GB 4735572 A GB4735572 A GB 4735572A GB 4735572 A GB4735572 A GB 4735572A GB 1404060 A GB1404060 A GB 1404060A
Authority
GB
United Kingdom
Prior art keywords
ring
comminution
oct
fluid energy
energy mill
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
GB4735572A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB1404060A publication Critical patent/GB1404060A/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
    • B02C19/00—Other disintegrating devices or methods
    • B02C19/06—Jet mills
    • B02C19/061—Jet mills of the cylindrical type

Landscapes

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

Abstract

1404060 Jet mills E I DU PONT DE NEMOURS & CO 13 Oct 1972 [15 Oct 1971] 47355/72 Heading B2A The end walls 8, 9 of a jet mill each include one or more ring-shaped discontinuities 12 which reduce the fluid velocity at the end surfaces and increase residence time of material in the milling chamber. The ring is located at a distance from the axis of 0.50 to 0.86 of the radius of the chamber. The ring may be in various forms, Figs 3-7 (not shown), and the end walls may be flat or divergent. Superheated steam is discharged at 7 and product at 6 into a conical enclosure 13 which forms a centrifugal separator, in the usual way.
GB4735572A 1971-10-15 1972-10-13 Fluid energy mill and process for comminution Expired GB1404060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18958671A 1971-10-15 1971-10-15

Publications (1)

Publication Number Publication Date
GB1404060A true GB1404060A (en) 1975-08-28

Family

ID=22697957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4735572A Expired GB1404060A (en) 1971-10-15 1972-10-13 Fluid energy mill and process for comminution

Country Status (7)

Country Link
US (1) US3726484A (en)
JP (1) JPS58898B2 (en)
AR (1) AR194277A1 (en)
BR (1) BR7207179D0 (en)
CA (1) CA989370A (en)
DE (1) DE2250226C3 (en)
GB (1) GB1404060A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281379A (en) * 1989-04-05 1994-01-25 Kanebo, Ltd. Processes for manufacturing thermoplastic resin compositions
RU170192U1 (en) * 2016-11-14 2017-04-18 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" (Университет ИТМО) Inkjet Dispersant for Food Additives

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219164A (en) * 1979-03-16 1980-08-26 Microfuels, Inc. Comminution of pulverulent material by fluid energy
US4502641A (en) * 1981-04-29 1985-03-05 E. I. Du Pont De Nemours And Company Fluid energy mill with differential pressure means
DE3201778C1 (en) * 1982-01-21 1983-10-06 Kronos Titan Gmbh Device for jet milling solids, in particular pigments, which are composed of fine particles
JPS60175599U (en) * 1984-04-28 1985-11-20 カ−ル事務器株式会社 punch
FI83330C (en) * 1988-06-03 1991-06-25 Neste Oy Process for activating a polymerization catalyst support and a catalyst component obtained by the process
DE3825469A1 (en) * 1988-07-27 1990-02-01 Basf Ag METHOD FOR DISPERSION, CRUSHING OR DESAGGLOMERATION AND SIGHTING OF SOLIDS
US5154360A (en) * 1992-02-07 1992-10-13 E. I. Du Pont De Nemours And Company Process of making X-ray phosphors having improved efficiency
US5476093A (en) * 1992-02-14 1995-12-19 Huhtamaki Oy Device for more effective pulverization of a powdered inhalation medicament
US5637344A (en) * 1995-10-20 1997-06-10 Hershey Foods Corporation Chocolate flavored hard candy
ES2155670T3 (en) * 1996-03-08 2001-05-16 Du Pont ENHANCED FLUID POWER MILL.
EA000004B1 (en) * 1996-03-12 1997-09-30 Владимир Иванович Размаитов Method of turbulence-pulverisation of materials (variants) and device for carrying out said method (variants)
US5855326A (en) * 1997-05-23 1999-01-05 Super Fine Ltd. Process and device for controlled cominution of materials in a whirl chamber
CA2212430A1 (en) 1997-08-07 1999-02-07 George Volgyesi Inhalation device
US6971594B1 (en) 1999-03-23 2005-12-06 Vortex Dehydration Technology, Llc Apparatus and method for circular vortex air flow material grinding
EP1194242B1 (en) * 1999-03-23 2008-12-17 Vortex Dehydration Technology, LLC Apparatus and method for circular vortex air flow material grinding
GB2353222B (en) 1999-06-23 2001-09-19 Cambridge Consultants Inhalers
US6789756B2 (en) * 2002-02-20 2004-09-14 Super Fine Ltd. Vortex mill for controlled milling of particulate solids
US7258290B2 (en) * 2003-09-05 2007-08-21 Nisshin Engineering Inc. Jet mill
JP4922760B2 (en) * 2004-07-09 2012-04-25 サンレックス工業株式会社 Jet mill
US7476378B2 (en) 2005-10-27 2009-01-13 E.I. Dupont Denemours & Company Process for producing titanium dioxide
US7247200B2 (en) 2005-11-01 2007-07-24 E. I. Du Pont De Nemours And Company Titanium dioxide finishing process
US8114377B2 (en) * 2006-11-02 2012-02-14 E.I. Du Pont De Nemours And Company Process for producing titanium dioxide particles having reduced chlorides
JP4747130B2 (en) * 2007-04-26 2011-08-17 株式会社日清製粉グループ本社 Powder classifier
US7398934B1 (en) 2007-05-15 2008-07-15 E.I. Du Pont De Nemours And Company Deep-chamber, stepped, fluid-energy mill
WO2009046215A2 (en) * 2007-10-02 2009-04-09 Lab International Srl Safety and abuse deterrent improved device
JP2009090255A (en) * 2007-10-11 2009-04-30 Earth Technica:Kk Powder treating facility
CN102189031B (en) * 2010-03-15 2014-05-14 钦州鑫能源科技有限公司 Slurry particle breaking device
JP6756111B2 (en) * 2016-01-21 2020-09-16 堺化学工業株式会社 Powder crushing method and powder crushing equipment
DE102018120596A1 (en) * 2018-08-23 2020-02-27 Netzsch Trockenmahltechnik Gmbh Method and device for removing difficult-to-grind particles from a spiral jet mill

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2191095A (en) * 1937-09-01 1940-02-20 Internat Pulverizing Corp Centrifugal fluid jet pulverizer
US2690880A (en) * 1951-04-10 1954-10-05 Freeport Sulphur Co Rectilinear pulverizer
US3178121A (en) * 1962-04-24 1965-04-13 Du Pont Process for comminuting grit in pigments and supersonic fluid energy mill therefor
US3462086A (en) * 1966-07-01 1969-08-19 Du Pont Fluid energy milling process
US3559895A (en) * 1968-02-20 1971-02-02 Edwin F Fay Apparatus for and method of comminuting solid materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5281379A (en) * 1989-04-05 1994-01-25 Kanebo, Ltd. Processes for manufacturing thermoplastic resin compositions
RU170192U1 (en) * 2016-11-14 2017-04-18 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики" (Университет ИТМО) Inkjet Dispersant for Food Additives

Also Published As

Publication number Publication date
JPS4847655A (en) 1973-07-06
BR7207179D0 (en) 1973-08-30
AR194277A1 (en) 1973-06-29
DE2250226C3 (en) 1981-12-17
DE2250226A1 (en) 1973-04-19
JPS58898B2 (en) 1983-01-08
US3726484A (en) 1973-04-10
DE2250226B2 (en) 1981-04-23
CA989370A (en) 1976-05-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years