EP0211117A3 - Method and apparatus for providing finely divided powder - Google Patents
Method and apparatus for providing finely divided powder Download PDFInfo
- Publication number
- EP0211117A3 EP0211117A3 EP85305506A EP85305506A EP0211117A3 EP 0211117 A3 EP0211117 A3 EP 0211117A3 EP 85305506 A EP85305506 A EP 85305506A EP 85305506 A EP85305506 A EP 85305506A EP 0211117 A3 EP0211117 A3 EP 0211117A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- classifier
- feedstock
- pulverizer
- gas
- pressure
- 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.)
- Withdrawn
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
- B02C19/065—Jet mills of the opposed-jet type
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
A no-moving parts pulverizer (19) and classifier
system (15) reduces materials to one hundred fifty microns
to less than ten microns using superheated steam or
any gas capable of being compressed and expanded thru
machined orifices. The resultant size reduction
depends upon the classifier gas rate and pressure,
the pulverizer gas rate and its pressure. These
combinations control and regulate miximum particle
size, average particle size and the mix of gas and
solids in process.
The feedstock enters the classifier chamber (15)
by auger (12) or similar manner as long as the feeder
maintains a positive seal. The classifier chamber (15)
separates the feedstock by size and particles of a
predetermined size exit (32) the system in a specific
ratio of gas and solids. The feedstock larger than
specified exit the base of the classifier (15), split into
two equal streams (20A, 20B) and accelerate thru the
pulverizer (19). The reduced feedstock exits (13) the
pulverizer (19), mixes with incocming feedstock (10) and again
enters the classifier (15).
The system is controlled using pressure,
temperature, feedrate or any combination of the
three. Other control methods can be used if any one
of the three are part of the control circuit.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/510,089 US4538764A (en) | 1983-06-30 | 1983-06-30 | Method and apparatus for providing finely divided powder |
EP85305506A EP0211117A3 (en) | 1985-08-02 | 1985-08-02 | Method and apparatus for providing finely divided powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP85305506A EP0211117A3 (en) | 1985-08-02 | 1985-08-02 | Method and apparatus for providing finely divided powder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0211117A2 EP0211117A2 (en) | 1987-02-25 |
EP0211117A3 true EP0211117A3 (en) | 1988-02-03 |
Family
ID=8194308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85305506A Withdrawn EP0211117A3 (en) | 1983-06-30 | 1985-08-02 | Method and apparatus for providing finely divided powder |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0211117A3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3943733C2 (en) * | 1989-05-12 | 1999-01-21 | Canon Kk | Air separator classifying powders |
DE4431534B4 (en) * | 1994-02-10 | 2006-12-28 | Nied, Roland, Dr. Ing. | Machine for acting on comminuted and classifiable raw material, as well as method for operating the machine |
DE102006017472A1 (en) | 2006-04-13 | 2007-10-18 | Nied, Roland, Dr. Ing. | Method for producing finest particles by means of a jet mill |
DE102006023193A1 (en) | 2006-05-17 | 2007-11-22 | Nied, Roland, Dr.-Ing. | Method for producing finest particles by means of a jet mill |
AR068839A1 (en) | 2007-10-09 | 2009-12-09 | Cbp Carbon Ind Inc | PROCESOPARA CLASSIFY PARTICLES IN PIROLIZED CARBON |
WO2009061464A2 (en) | 2007-11-07 | 2009-05-14 | Cbp Carbon Industries, Inc. | Asphalt composition using pyrolysed carbonaceous materials |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2624516A (en) * | 1949-01-04 | 1953-01-06 | Blaw Knox Co | Fluid impact pulverizer and separator |
US2636688A (en) * | 1948-02-20 | 1953-04-28 | Inst Gas Technology | Method for treating coal and the like |
US3186648A (en) * | 1963-05-27 | 1965-06-01 | Grace W R & Co | Fluid energy mill |
US3885931A (en) * | 1972-06-12 | 1975-05-27 | Donaldson Co Inc | Vortex forming apparatus and method |
US4019688A (en) * | 1975-06-02 | 1977-04-26 | Viktor Ivanovich Akunov | Device for treating loose materials |
US4538764A (en) * | 1983-06-30 | 1985-09-03 | Dunbar Richard M | Method and apparatus for providing finely divided powder |
-
1985
- 1985-08-02 EP EP85305506A patent/EP0211117A3/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2636688A (en) * | 1948-02-20 | 1953-04-28 | Inst Gas Technology | Method for treating coal and the like |
US2624516A (en) * | 1949-01-04 | 1953-01-06 | Blaw Knox Co | Fluid impact pulverizer and separator |
US3186648A (en) * | 1963-05-27 | 1965-06-01 | Grace W R & Co | Fluid energy mill |
US3885931A (en) * | 1972-06-12 | 1975-05-27 | Donaldson Co Inc | Vortex forming apparatus and method |
US4019688A (en) * | 1975-06-02 | 1977-04-26 | Viktor Ivanovich Akunov | Device for treating loose materials |
US4538764A (en) * | 1983-06-30 | 1985-09-03 | Dunbar Richard M | Method and apparatus for providing finely divided powder |
Also Published As
Publication number | Publication date |
---|---|
EP0211117A2 (en) | 1987-02-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES8300134A1 (en) | Improved particulate coal-in-liquid mixture and process for the production thereof. | |
DK0537850T3 (en) | Process for the preparation of inorganic oxide-based materials with monodisperse particle size and resultant matter | |
EP0168606A3 (en) | Process for producing alumina bodies | |
EP0211117A3 (en) | Method and apparatus for providing finely divided powder | |
CA2115460A1 (en) | Improved mixed metal oxide crystalline powders and method for the synthesis thereof | |
JPS52140490A (en) | Production of fluid catalyst containing antimony oxide | |
GB1108313A (en) | Fluidized bed reactor | |
AU581530B2 (en) | Process for the preparation of granules and granules obtained by this process | |
ES8609001A1 (en) | Fine grinding guayule shrub-solvent slurry | |
ES8605390A1 (en) | Process for removing particles from a gaseous medium. | |
IE831857L (en) | Heat treating pulverulent raw material | |
AU1183392A (en) | A method and an equipment for classifying a gas-solids flow coming from a counterjet pulverizer | |
SE8902797D0 (en) | SET TO REDUCE NOZZLE OF THE NOZZLE OR OTHER SUPPLY ORGANIZATIONS | |
AU578360B2 (en) | Agglomeration method and apparatus | |
GB2200103B (en) | A process for forming finely divided calcuim sulphate | |
JPS6424010A (en) | Production of hydroxyapatite powder containing dispersed zirconium compound | |
Müller et al. | Kinetics of calcium carbonate dissociation | |
AU1891088A (en) | Method of producing fine particles | |
EP0033171A3 (en) | Process for dewatering aqueous coal slurries | |
JPS5381406A (en) | Treating method for secondary ash of blast furnace | |
GB1255801A (en) | Improvements in or relating to methods of controlling the process of agglomeration | |
EP0155120A3 (en) | Method operating a coal burner | |
IE32552L (en) | Processing fats or oils. | |
GB1481304A (en) | Powder forming | |
JPS5324304A (en) | Production of gelatinous coal-petroleum mixture |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19880804 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: DUNBAR, RICHARD M |