FR2340772A1 - Rotary crusher oversize safety device - has piston positioned behind release flap and automatically operated by hydropneumatic circuit - Google Patents

Rotary crusher oversize safety device - has piston positioned behind release flap and automatically operated by hydropneumatic circuit

Info

Publication number
FR2340772A1
FR2340772A1 FR7603832A FR7603832A FR2340772A1 FR 2340772 A1 FR2340772 A1 FR 2340772A1 FR 7603832 A FR7603832 A FR 7603832A FR 7603832 A FR7603832 A FR 7603832A FR 2340772 A1 FR2340772 A1 FR 2340772A1
Authority
FR
France
Prior art keywords
flap
oversize
piston
safety device
positioned behind
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
FR7603832A
Other languages
French (fr)
Other versions
FR2340772B1 (en
Inventor
Herve Riu
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock SA
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 Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Priority to FR7603832A priority Critical patent/FR2340772A1/en
Publication of FR2340772A1 publication Critical patent/FR2340772A1/en
Application granted granted Critical
Publication of FR2340772B1 publication Critical patent/FR2340772B1/fr
Granted 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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/31—Safety devices or measures

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)

Abstract

A rotary crushing machine has a flap(2a) alongside its rotor (10), to swing about a hinge point (22) at the top, with a piston (26) mounted behind it. The piston housing is connected by a line (28) to a hydro pneumatic accumulator (30) via an electromagnetic valve (36) This is located one side of the pump (31). When an oversize block enters the crushing chamber (19) it pushes the flap down against a spring (46) also behind the flap, and also pushes the piston back. This causes a non return valve (32) in parallel with the pump to close, and pressure rises until a switch (40) is closed to operate a device which in turn operates the valve (36) to isolate the accumulator (30) and to shut down the crusher. The weight of the block swings the flap back fully, falls through, and the spring (40) returns the flap.
FR7603832A 1976-02-12 1976-02-12 Rotary crusher oversize safety device - has piston positioned behind release flap and automatically operated by hydropneumatic circuit Granted FR2340772A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7603832A FR2340772A1 (en) 1976-02-12 1976-02-12 Rotary crusher oversize safety device - has piston positioned behind release flap and automatically operated by hydropneumatic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7603832A FR2340772A1 (en) 1976-02-12 1976-02-12 Rotary crusher oversize safety device - has piston positioned behind release flap and automatically operated by hydropneumatic circuit

Publications (2)

Publication Number Publication Date
FR2340772A1 true FR2340772A1 (en) 1977-09-09
FR2340772B1 FR2340772B1 (en) 1980-04-11

Family

ID=9169024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603832A Granted FR2340772A1 (en) 1976-02-12 1976-02-12 Rotary crusher oversize safety device - has piston positioned behind release flap and automatically operated by hydropneumatic circuit

Country Status (1)

Country Link
FR (1) FR2340772A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436796A1 (en) * 1984-10-06 1986-04-10 Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster IMPACT DRYER
DE3621400A1 (en) * 1986-06-26 1988-01-14 Paul Aertker Method and device for protecting a percussion-hammer mill against overload
US4729517A (en) * 1985-07-13 1988-03-08 O&K Orenstein & Koppel Aktiengesellschaft Rebound crusher
DE4330882A1 (en) * 1993-09-13 1995-03-16 Klaus Lanner Device for crushing steel or metal chips

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3436796A1 (en) * 1984-10-06 1986-04-10 Hazemag Dr. E. Andreas GmbH & Co, 4400 Münster IMPACT DRYER
EP0177833A2 (en) * 1984-10-06 1986-04-16 Salzgitter Maschinenbau Gmbh Impact drier
EP0177833A3 (en) * 1984-10-06 1986-12-10 Salzgitter Maschinenbau Gmbh Impact drier
US4729517A (en) * 1985-07-13 1988-03-08 O&K Orenstein & Koppel Aktiengesellschaft Rebound crusher
DE3621400A1 (en) * 1986-06-26 1988-01-14 Paul Aertker Method and device for protecting a percussion-hammer mill against overload
DE4330882A1 (en) * 1993-09-13 1995-03-16 Klaus Lanner Device for crushing steel or metal chips
US5785261A (en) * 1993-09-13 1998-07-28 Lanner; Klaus Device for reducing the size of steel or metal chips

Also Published As

Publication number Publication date
FR2340772B1 (en) 1980-04-11

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Legal Events

Date Code Title Description
ST Notification of lapse