Classifications

• • A—HUMAN NECESSITIES
  • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
  • A22B—SLAUGHTERING
  • A22B5/00—Accessories for use during or after slaughtering
  • A22B5/08—Scalding; Scraping; Dehairing; Singeing

Definitions

• the present invention relates to a method of scalding carcasses, preferably pig carcasses, with hot water and to an apparatus comprising a cabinet for use in the performance of the method.
• a scalding apparatus defined in DK 165 866 C, in which carcasses hanging in a hind leg on a suspension conveyor are moved through a cabinet, in which hot, most air is circulated and sucked off, and moisture and heat are added, and are then returned to or in the cabinet.
• the apparatuses are relatively large and complicated, as a relatively large amount of circulating air is required, and this moreover has to be distributed in the cabinet.
• the apparatus is divided into an inner cabinet through which the carcasses pass, and an outer cabinet which is arranged around the inner cabinet and serves as an air dis- tribution channel, air nozzles for the distribution of the air being provided in the walls and the bottom of the inner cabinet.
• a gate having double doors is arranged in the inlet to and the outlet from the inner cabinet. Further, there is a section with a heat exchanger, an air flow streamliner, water atomizers, a drop trap and fi- nally a ventilator.
• a similar apparatus is known from DD 248 954 Al, which uses a mixture of steam, air and water.
• the object of the invention is to provide a simpler and more expedient manner of scalding carcasses.
• the water may be atomized directly for condensation on the carcasses, said water being heated in advance to the temperature necessary for the scalding, which involves a significant improvement over the prior art, since the circulation of air and the arrangements associated with this are obviated.
• Atomization exclusively requires a plurality of atomizer nozzles and feeding of the water to these at a suitable pressure, which may be generated with a pump.
• the nozzles may be arranged in an expedient pattern which ensures spreading of the mist of water around a carcass so that this is scalded in a single operation.
• the cabinet which is optionally composed of sections, is provided with atomizer nozzles by means of which the hot water is atomized for condensation on the carcasses.
• the dimensions of the cabinet may be made relatively modest, as no air distribution arrangement is needed.
• the reduced dimensions make it easier to fit in the appa- ratus structurally.
• the cabinet may be placed below the suspension conveyor, the ceiling of the cabinet being formed with a longitudinal slot for the hooks which hang down from the suspension conveyor and from which the pigs are suspended.
• the suspension conveyor does not have to passed directly through the aggressive environment which prevails in the cabinet, and wear on the suspension conveyor is accordingly re- symbolized significantly.
• the apparatus When the apparatus is formed with at least one gutter in the bottom of the cabinet, the water condensing and dripping off the carcasses may be collected and discharged in a simple manner.
• Arranging gutters along the side walls of the cabinet also provides an easy way of collecting the water which hits the inner side of the cabinet and thus has not been in contact with the carcasses. Thus, separation of the water is obtained, so that the part which has been in contact with the carcass may be discharged, while the other water may be returned.
• fig. 1 shows a schematic cross-section through an apparatus according to the invention for use in the scalding of pig carcasses.
• the apparatus shown in fig. 1 of the drawing comprises a ⁇ heat insulated cabinet 1 having a longitudinal slot 2 in the ceiling.
• the apparatus is arranged directly below a suspension conveyor 3 by means of which the pigs are advanced hanging with one leg in a hook 4, it being possible for the hooks to slide into the slot 2 in the ceil- ing of the cabinet.
• the cabinet accommodates an arrangement of high pressure water mist nozzles 5 which are directed toward the carcasses, and which produce a mist of water that fills the cabinet.
• the carcasses are heated in that the mist of water condenses on these.
• To keep the mist of water inside the cabinet it is provided with an inlet and an outlet gate for the carcasses.
• the bottom of the cabinet is formed with a gutter 6 communicating with a sewer for the water which condenses and drips off the carcasses.
• the water which hits the inner side of the cabinet and which has thus not been in contact with the carcasses, is collected in gutters 7 at the side wall and is re-used.
• the apparatus is associated with a heat exchanger 8 which heats the water to a temperature so that it hits the carcasses with a temperature of about 62 degrees centigrade, just as there is a pump 9 belonging to the apparatus for the supply of the water at the necessary pressure to the nozzles.
• a water hydraulic pump is preferably used.
• the cabinet is not tied to a rectangular ground plan.
• the cabinet may be given a U-shape or be constructed with an almost square ground plan in which the suspension conveyor has a winding course.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Food Science & Technology (AREA)
• Commercial Cooking Devices (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8089849

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (5)

Family Cites Families (6)

• 1997
  • 1997-01-29 DK DK10997A patent/DK10997A/da not_active Application Discontinuation
• 1998
  • 1998-01-29 AU AU56519/98A patent/AU5651998A/en not_active Abandoned
  • 1998-01-29 EP EP98900846A patent/EP0966201A1/de not_active Withdrawn
  • 1998-01-29 WO PCT/DK1998/000036 patent/WO1998032337A1/en not_active Application Discontinuation

Non-Patent Citations (1)

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