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EP0336453A3 - Comminution of material - Google Patents

Comminution of material Download PDF

Info

Publication number
EP0336453A3
EP0336453A3 EP19890108225 EP89108225A EP0336453A3 EP 0336453 A3 EP0336453 A3 EP 0336453A3 EP 19890108225 EP19890108225 EP 19890108225 EP 89108225 A EP89108225 A EP 89108225A EP 0336453 A3 EP0336453 A3 EP 0336453A3
Authority
EP
European Patent Office
Prior art keywords
gas
admitted
chamber
inlets
prevent agglomeration
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.)
Granted
Application number
EP19890108225
Other versions
EP0336453A2 (en
EP0336453B1 (en
Inventor
Roger William Adams
David Anthony Pearce
Hugh Robin Falcon-Steward
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.)
Imerys Minerals Ltd
Original Assignee
ECC International 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
Priority claimed from GB8519408A external-priority patent/GB2190016B/en
Application filed by ECC International Ltd filed Critical ECC International Ltd
Priority to EP89108225A priority Critical patent/EP0336453B1/en
Priority to AT89108225T priority patent/ATE98910T1/en
Publication of EP0336453A2 publication Critical patent/EP0336453A2/en
Publication of EP0336453A3 publication Critical patent/EP0336453A3/en
Application granted granted Critical
Publication of EP0336453B1 publication Critical patent/EP0336453B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/06—Selection or use of additives to aid disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/26—Passing gas through crushing or disintegrating zone characterised by point of gas entry or exit or by gas flow path

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Material is comminuted in a substantially dry state in a chamber (4) as a result of agitation by a rotor. During the process, gas is admitted to the chamber (4) through a foraminous base (8) to flow upwardly in a uniform manner across the cross-section of the chamber. Pulses of gas are directed periodically at the material through inlets (15) to prevent agglomeration of the material. The pressure of the gas admitted through the inlets (15) is higher than that admitted through the foraminous base (8). Surface active agents may be added to the material, also to prevent agglomeration, as well as, or instead of the use of pulsed gas.
EP89108225A 1985-08-01 1986-07-17 Comminution of material Expired - Lifetime EP0336453B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP89108225A EP0336453B1 (en) 1985-08-01 1986-07-17 Comminution of material
AT89108225T ATE98910T1 (en) 1985-08-01 1989-05-08 METHOD OF SHREDDING MATERIAL.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8519408A GB2190016B (en) 1985-08-01 1985-08-01 Communition of material
GB8519408 1985-08-01
EP89108225A EP0336453B1 (en) 1985-08-01 1986-07-17 Comminution of material

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP86305507.5 Division 1986-07-17

Publications (3)

Publication Number Publication Date
EP0336453A2 EP0336453A2 (en) 1989-10-11
EP0336453A3 true EP0336453A3 (en) 1990-09-26
EP0336453B1 EP0336453B1 (en) 1993-12-22

Family

ID=26120165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108225A Expired - Lifetime EP0336453B1 (en) 1985-08-01 1986-07-17 Comminution of material

Country Status (2)

Country Link
EP (1) EP0336453B1 (en)
AT (1) ATE98910T1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708484B1 (en) * 1993-08-06 1995-10-13 Chryso Sa Process for improving the grinding of minerals.
US6019667A (en) * 1998-05-26 2000-02-01 Dow Corning Corporation Method for grinding silicon metalloid
CN113262871B (en) * 2021-06-28 2022-08-19 中国水利水电第九工程局有限公司 Intelligent control method for balanced crushing of fine crushing workshop in machine-made gravel

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325105A (en) * 1964-07-17 1967-06-13 Grace W R & Co Mineral grinding aids and process of grinding
DE1482397A1 (en) * 1963-11-22 1970-03-12 Eichborn Dipl Ing Joh Ludw V Application of adsorptive aids for dry grinding
US3604634A (en) * 1969-10-28 1971-09-14 English Clays Lovering Pochin Comminution of solid materials
GB1319258A (en) * 1969-11-04 1973-06-06 Gen Motors Corp Dry grinding of ceramics
GB2028785A (en) * 1978-05-30 1980-03-12 Ici Ltd Comminution process
GB2089682A (en) * 1980-12-19 1982-06-30 Grace W R & Co Grinding aid for granular blast furnace slag
GB2106889A (en) * 1981-09-21 1983-04-20 Grace W R & Co Grinding aids for grandular blast furnace slag
DE3416245A1 (en) * 1983-05-24 1984-11-29 Magyar Szénhidrogénipari Kutató-Fejlesztö Intézet, Százhalombatta METHOD FOR INTENSIFYING THE GRINDING OF NATURAL MINERALS AND SYNTHETICALLY PRODUCED MINERAL SUBSTANCES
GB2147296A (en) * 1981-06-02 1985-05-09 Grace W R & Co Amine salts of aromatic carboxylic acids and grinding aids for hydraulic cement

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1482397A1 (en) * 1963-11-22 1970-03-12 Eichborn Dipl Ing Joh Ludw V Application of adsorptive aids for dry grinding
US3325105A (en) * 1964-07-17 1967-06-13 Grace W R & Co Mineral grinding aids and process of grinding
US3604634A (en) * 1969-10-28 1971-09-14 English Clays Lovering Pochin Comminution of solid materials
GB1319258A (en) * 1969-11-04 1973-06-06 Gen Motors Corp Dry grinding of ceramics
GB2028785A (en) * 1978-05-30 1980-03-12 Ici Ltd Comminution process
GB2089682A (en) * 1980-12-19 1982-06-30 Grace W R & Co Grinding aid for granular blast furnace slag
GB2147296A (en) * 1981-06-02 1985-05-09 Grace W R & Co Amine salts of aromatic carboxylic acids and grinding aids for hydraulic cement
GB2106889A (en) * 1981-09-21 1983-04-20 Grace W R & Co Grinding aids for grandular blast furnace slag
DE3416245A1 (en) * 1983-05-24 1984-11-29 Magyar Szénhidrogénipari Kutató-Fejlesztö Intézet, Százhalombatta METHOD FOR INTENSIFYING THE GRINDING OF NATURAL MINERALS AND SYNTHETICALLY PRODUCED MINERAL SUBSTANCES

Also Published As

Publication number Publication date
ATE98910T1 (en) 1994-01-15
EP0336453A2 (en) 1989-10-11
EP0336453B1 (en) 1993-12-22

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