ES386018A1 - A procedure for milling granular materials. (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for milling granular materials. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES386018A1
ES386018A1 ES386018A ES386018A ES386018A1 ES 386018 A1 ES386018 A1 ES 386018A1 ES 386018 A ES386018 A ES 386018A ES 386018 A ES386018 A ES 386018A ES 386018 A1 ES386018 A1 ES 386018A1
Authority
ES
Spain
Prior art keywords
heat exchanger
translation
procedure
machine
legally binding
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
ES386018A
Other languages
Spanish (es)
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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 CH1788569A external-priority patent/CH491675A/en
Application filed by Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Publication of ES386018A1 publication Critical patent/ES386018A1/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
    • B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
    • B02C19/186—Use of cold or heat for disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/021—Heat treatment of powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

Apparatus for grinding materials and particularly plastics at low temperatures, comprises a grinder 12, a supply vessel 10 to supply material to the grinder, means including a pipe 32 to remove ground material from it and a closed circuit of ducting including a heat exchanger 2 for supply of a cold gas into the grinder and recirculation of the gas through the heat exchanger. Part of the ducting of a second closed circuit passes through the heat exchanger 2, ducting of the second closed circuit leading from the heat exchanger 2 to a second heat exchanger 3, from the second heat exchanger 3 to a compressor 4, from the compressor again to the second heat exchanger, from the second heat exchanger to an expansion chamber in the circuit and from the expansion chamber to the first heat exchanger. The expansion chamber is in the form of a turbine 1.
ES386018A 1969-12-01 1970-11-30 A procedure for milling granular materials. (Machine-translation by Google Translate, not legally binding) Expired ES386018A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1788569A CH491675A (en) 1969-12-01 1969-12-01 METHOD OF GRINDING GRAINY MATERIALS AT LOW TEMPERATURES

Publications (1)

Publication Number Publication Date
ES386018A1 true ES386018A1 (en) 1973-03-16

Family

ID=4428828

Family Applications (1)

Application Number Title Priority Date Filing Date
ES386018A Expired ES386018A1 (en) 1969-12-01 1970-11-30 A procedure for milling granular materials. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
AT (1) AT310435B (en)
BR (1) BR7024256D0 (en)
CA (1) CA931548A (en)
ES (1) ES386018A1 (en)
FR (1) FR2072651A5 (en)
GB (1) GB1267019A (en)
IE (1) IE34768B1 (en)
NL (1) NL146421B (en)

Also Published As

Publication number Publication date
FR2072651A5 (en) 1971-09-24
BR7024256D0 (en) 1973-03-08
NL7017482A (en) 1971-06-03
CA931548A (en) 1973-08-07
AT310435B (en) 1973-09-25
DE2058247A1 (en) 1971-06-16
IE34768B1 (en) 1975-08-06
NL146421B (en) 1975-07-15
GB1267019A (en) 1972-03-15
IE34768L (en) 1971-06-01

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