EP0363860A2 - Proccédé pour le broyage et le refroidissement simultané de substances solides - Google Patents

Proccédé pour le broyage et le refroidissement simultané de substances solides Download PDF

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Publication number
EP0363860A2
EP0363860A2 EP89118670A EP89118670A EP0363860A2 EP 0363860 A2 EP0363860 A2 EP 0363860A2 EP 89118670 A EP89118670 A EP 89118670A EP 89118670 A EP89118670 A EP 89118670A EP 0363860 A2 EP0363860 A2 EP 0363860A2
Authority
EP
European Patent Office
Prior art keywords
valve
phase
shut
cooling
container
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
EP89118670A
Other languages
German (de)
English (en)
Other versions
EP0363860B1 (fr
EP0363860A3 (fr
Inventor
Wolfgang Schmidtke
Franz Dipl.-Ing.(Fh) Garnreiter
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.)
Linde Gas AG
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Priority to AT89118670T priority Critical patent/ATE103842T1/de
Publication of EP0363860A2 publication Critical patent/EP0363860A2/fr
Publication of EP0363860A3 publication Critical patent/EP0363860A3/fr
Application granted granted Critical
Publication of EP0363860B1 publication Critical patent/EP0363860B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/065—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within rotatable bowls, e.g. meat cutters

Definitions

  • the invention relates to a method for the simultaneous comminution and cooling of solid substances by means of a cutting mixer, the cutting mixer being evacuated in at least one vacuum phase and cryogenic liquefied gas being introduced into the cutting mixer in at least one cooling phase, and a device for carrying out the method.
  • a cutting machine for example, meat parts are crushed into sausage meat or cocoa pods into a base for chocolate production and mixed.
  • the substances to be processed are placed in a container for this purpose has a comminution and / or mixing device.
  • the substances are usually placed in a bowl rotating in a machine frame.
  • the bowl is placed on a vertical rotary shaft, which is driven by an electric motor, for example. Through this rotating bowl, the substances are transported into a cutting room, in which knives run at high peripheral speeds. By repeatedly passing the substances through the cutting area, they are crushed and mixed.
  • EP-A-0195 919 describes, for example, a cutter with a pressure-resistant and gas-tight sealable cutter container for receiving tissue parts.
  • the container is first evacuated in a vacuum phase in order to exclude negative influences of the atmospheric oxygen on the tissue parts to be treated and to open the cell tissue.
  • cryogenic liquefied gas is introduced directly into the tissue parts using an injector.
  • the gas evaporating in the container is not removed, considerable problems arise in the vicinity of the cutter, e.g. due to increased fog formation.
  • the nitrogen gas accumulating in the container causes a constantly increasing overpressure in the container, which e.g. can cause problems when opening the container.
  • the present invention has for its object to design a method of the type mentioned and an apparatus for performing the method so that the problems described do not occur.
  • This object is achieved in that exhaust gas generated during the cooling phase is drawn off. This can prevent impairments in the vicinity of the cutting mixer.
  • the exhaust gas is preferably drawn off via a shut-off valve which is kept closed during the vacuum phase and opened at the beginning of the cooling phase. In this way it is ensured that, on the one hand, a sufficient vacuum is achieved or maintained during the vacuum phase and, on the other hand, sufficient cooling of the substances is achieved during the cooling phase.
  • the invention thus optimizes both process flows in a simple and technically elegant manner.
  • the shut-off valve is opened and closed via a pneumatically controlled locking piston.
  • a shut-off valve comes into play Application that has a locking piston displaceably arranged in a valve housing.
  • the exhaust gas is introduced into the valve housing through an opening and out again through a second opening.
  • the locking piston is pneumatically displaced towards the first opening until it closes the opening.
  • the locking piston is pushed back, so that a flow path of the exhaust gas from one to the second opening of the valve housing is exposed.
  • the exhaust gas is expediently drawn off by means of a fan.
  • Liquid nitrogen is preferably used as the cryogenic liquefied gas.
  • Nitrogen is to be regarded as an inert gas compared to animal or vegetable tissue parts, so that there is no impairment of product-specific properties. Adequate cooling temperature is also ensured through the use of liquid nitrogen.
  • the present invention offers advantages in particular in the processing of animal and / or vegetable tissue parts.
  • By reliably maintaining the vacuum during the vacuum phase negative influences of the atmospheric oxygen are successfully eliminated on the one hand, which results in an improved quality of the processed tissue parts, ie the sausage, the cocoa pods, etc.
  • a rapid temperature reduction is achieved, which also benefits the quality of the substances processed.
  • the invention can also be used in the shredding of rubber parts, plastic parts and similar materials.
  • a device for carrying out the method has a pressure-tight, gas-tight sealable container which is connected to a vacuum pump and holds the substances. At least one shredding and / or mixing device is arranged in the container. The container also has an inlet for cryogenic liquefied gas.
  • the container has an exhaust gas discharge line which is connected to a valve housing of a shut-off valve via a supply nozzle.
  • the valve housing has a discharge nozzle, via which the exhaust gas leaves the valve housing again.
  • an axially displaceable locking piston which can be displaced in the direction of the feed nozzle so far that it closes it. In the opposite direction, the locking piston is displaceable to such an extent that a flow path between the supply nozzle and the discharge nozzle is open.
  • the locking piston is connected to a pressure cylinder through which the locking piston can be moved.
  • the printing cylinder expediently has supply lines for pressure-supplying agents.
  • the pressure cylinder can be used for example with compressed air, pressurized oil, etc. via these supply lines. be supplied.
  • the cutter shown schematically in Figure 1 has an annular container 2 which is rotatable about a vertical axis 3 and can be driven by a motor, not shown.
  • a rotatable knife set 4 is arranged in the container 2, the horizontal axis of which lies above the edge of the container 2.
  • At another location of the container 2 there is a supply nozzle 1 for the supply of liquid nitrogen.
  • the feed nozzle 1 is connected via a feed line 7 to a storage tank (not shown) for cryogenic liquefied gas.
  • the container 2 is sealed gas-tight and pressure-resistant.
  • the container interior 13 is connected to a vacuum pump 10 via line 9.
  • the container 2 has an exhaust pipe 11, which is connected to a shut-off valve 12.
  • a line 15 leads from the shut-off valve 12 to a fan 14.
  • the container 2 is first evacuated by means of the vacuum pump 10.
  • the shut-off valve 12 is closed. If the desired vacuum, which is dependent on the tissue parts to be processed, has been reached, the vacuum pump 10 is switched off. The liquid nitrogen is then introduced into the container 2 via the feed nozzle 1. The vacuum is released by the nitrogen evaporating in container 2.
  • the shut-off valve 12 is opened. The exhaust gas generated during the cooling phase is extracted by the fan 14 via the line 11, the open shut-off valve 12 and the line 15.
  • the shut-off valve which is only indicated in FIG. 1, is shown in more detail in FIG.
  • the shut-off valve has a valve housing 21, on which a supply connection 22 for supplying the exhaust gas into the valve housing 21 is attached.
  • a discharge connection 23 is connected to the valve housing 21 perpendicular to the supply connection 22, via which the exhaust gas can be drawn off from the valve housing 21.
  • a blocking piston 24 which is axially displaceable to the supply nozzle 22 is arranged in the valve housing 21, a blocking piston 24 which is axially displaceable to the supply nozzle 22 is arranged.
  • the locking piston 24 is connected to a pressure cylinder 25 through which it can be moved.
  • the pressure cylinder 25 has supply lines 26 for pressure-supplying agents, e.g. Compressed air, on.
  • shut-off piston 24 When the shut-off valve is operating, the shut-off piston 24 is displaced in the direction of the supply nozzle 22 at the beginning of the vacuum phase so that it is closed. Therefore, no exhaust gas can escape from the cutter container via the shut-off valve. To At the beginning of the cooling phase, the locking piston is then moved in the opposite direction to such an extent that the supply nozzle 22 and the discharge nozzle 23 are connected. The exhaust gas can now escape from the cutter tank via the shut-off valve.
  • valve housing is designed to be rotatable, so that the discharge nozzle 23 can be rotated through 360 ° about the axis of the supply nozzle 22. In this way, the greatest possible adaptation to different cutters is possible.
  • the valve housing 21 can be removed after loosening a simple clip spring 27, so that the interior of the shut-off valve is easily accessible for cleaning or repairs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Processing Of Solid Wastes (AREA)
EP89118670A 1988-10-11 1989-10-07 Proccédé pour le broyage et le refroidissement simultané de substances solides Expired - Lifetime EP0363860B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89118670T ATE103842T1 (de) 1988-10-11 1989-10-07 Verfahren zum gleichzeitigen zerkleinern und kuehlen von festen substanzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834487 1988-10-11
DE3834487A DE3834487A1 (de) 1988-10-11 1988-10-11 Verfahren und vorrichtung zum gleichzeitigen zerkleinern und kuehlen von festen substanzen

Publications (3)

Publication Number Publication Date
EP0363860A2 true EP0363860A2 (fr) 1990-04-18
EP0363860A3 EP0363860A3 (fr) 1991-01-23
EP0363860B1 EP0363860B1 (fr) 1994-04-06

Family

ID=6364802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118670A Expired - Lifetime EP0363860B1 (fr) 1988-10-11 1989-10-07 Proccédé pour le broyage et le refroidissement simultané de substances solides

Country Status (4)

Country Link
EP (1) EP0363860B1 (fr)
AT (1) ATE103842T1 (fr)
DE (2) DE3834487A1 (fr)
ES (1) ES2053903T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005039309A1 (fr) * 2003-09-24 2005-05-06 Hermann Hohenester Procede et dispositif de preparation industrielle d'aliments, aliments et produit alimentaire

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29616620U1 (de) * 1996-09-24 1996-11-14 Neuner, Hans, 95326 Kulmbach Vorrichtung zum mehrstufigen Bearbeiten von organischen Massen, insbesondere Fleisch
DE102006060831A1 (de) * 2006-12-22 2008-06-26 Glass Gmbh & Co. Kg Verfahren zur Herstellung von Leberwurst
DE102007057805B4 (de) 2007-11-30 2013-06-13 Günter Krüger Verfahren und Anlage zur Herstellung eines kollagenhaltigen Fleischerzeugnisses aus tierischen Gewebeteilen sowie ein Fleischerzeugnis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2155647C3 (de) * 1971-11-09 1985-01-24 Horst 7080 Aalen Seydelmann Kutter mit Umkapselung (Vakuumkutter)
FR2485950A1 (fr) * 1980-07-01 1982-01-08 Carboxyque Francaise Installation de refroidissement pour melangeur-hachoir a viande
US4476686A (en) * 1982-09-29 1984-10-16 The Boc Group, Inc. Methods and apparatus for chilling a product
DE3344521A1 (de) * 1983-12-09 1985-06-20 IGU-Industrie-Gase-Union-GmbH, 7550 Rastatt Verfahren und vorrichtung zur herstellung von wurstbraet
DE3506535A1 (de) * 1985-02-25 1986-08-28 Linde Ag, 6200 Wiesbaden Verfahren und vorrichtungen zum schockgefrieren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005039309A1 (fr) * 2003-09-24 2005-05-06 Hermann Hohenester Procede et dispositif de preparation industrielle d'aliments, aliments et produit alimentaire

Also Published As

Publication number Publication date
DE3834487A1 (de) 1990-04-12
ES2053903T3 (es) 1994-08-01
ATE103842T1 (de) 1994-04-15
EP0363860B1 (fr) 1994-04-06
EP0363860A3 (fr) 1991-01-23
DE58907395D1 (de) 1994-05-11

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