JP2620121B2 - Poultry anesthesia processing equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a poultry anesthesia treatment apparatus for preliminarily slaughtering poultry birds by applying a carbon dioxide gas to the poultry birds to bring them into an anesthetized state. .

[Conventional technology]

Generally, when slaughtering poultry birds, live birds are suspended and slaughtered.However, in this method, the workability is poor due to the violence of live birds when hanging birds, and wings are also poor. There are drawbacks such as breakage.

For this purpose, a method has been proposed in which a live bird before a hanging bird is subjected to carbon dioxide gas to make the edible bird anesthetized before the hanging bird (Japanese Patent Publication No. 61-42539 and Japanese Patent Application Laid-Open No. 62-282535). Gazette).

[Problems to be solved by the invention]

However, there is still a problem with the concentration of carbon dioxide and the duration of treatment for anesthetizing live birds and the quality of meat obtained after slaughter, the economics associated with the amount of carbon dioxide used, and the problems with the processing equipment. It has not been put to practical use.

Therefore, an object of the present invention is to provide an anesthesia processing apparatus suitable for performing anesthesia processing on a live bird using carbon dioxide gas.

[Means for solving the problem]

In order to achieve the above-mentioned object, the present invention provides a poultry anesthesia treatment apparatus that causes a poultry bird to act on carbon dioxide in a conveying path that conveys the poultry to a slaughter process and puts the poultry into a suspended state. The anesthesia processing section is formed by displacing a predetermined length downward between the carry-in section and the carry-out section of the tunnel section, and a carbon dioxide gas injection means is arranged at least near the carry-in section of the anesthesia processing section. It is intended to provide a food poultry anesthesia processing apparatus characterized by having been provided, furthermore, a plurality of carbon dioxide gas injection means is arranged from at least near the carry-in part of the anesthesia processing part to the carry-out part side, Before the operation, carbon dioxide gas is injected into the anesthesia processing section by all carbon dioxide injection means, and during operation, carbon dioxide gas is injected into the anesthesia processing section by the carbon dioxide injection means near the carrying-in section.

(Operation)

By forming as described above, the carbon dioxide gas having a higher specific gravity than the air stays in the anesthesia processing section provided to be deviated downward from the loading / unloading section, and the outflow of the carbon dioxide gas to the outside can be reduced. In addition, the carbon dioxide gas being processed flows to the carry-out side of the anesthesia processing unit with the movement of the live bird, so that the inside of the tunnel is maintained at a predetermined carbon dioxide concentration simply by injecting carbon dioxide gas from the carbon dioxide gas injection means near the carry-in unit. This makes it possible to achieve an optimal anesthetic state without waste of carbon dioxide gas.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

The figure shows an anesthesia processing apparatus incorporated in a transport path before a hanging bird in a poultry slaughtering apparatus. An anesthesia processing apparatus 1 includes a bird cage 3 in which live birds are stored by transport means 2 such as a belt conveyor.
A part of the transport path 4 for continuously transporting is formed as a tunnel portion 5, and a portion between the loading portion 5 a and the unloading portion 5 b of the tunnel portion 5 is displaced downward by a predetermined length to form an anesthesia processing portion 6. A plurality of carbon dioxide injection units 7a, 7b, which inject carbon dioxide into the anesthesia processing unit 6,
7c is provided.

The anesthesia processing unit 6 is formed to have a predetermined length depending on the number of live birds and the transport speed, and the amount of downward displacement with respect to the front and rear transport paths 4 is determined by the amount of carbon dioxide injected into the interior. ,
It is set to such a degree that it does not wastefully flow out from the openings of the carry-out sections 5a and 5b. The inclination angles of the carry-in / carry-out sections 5a and 5b are appropriately set so as not to hinder the transport of the bird cage 3. Further, it is desirable to appropriately provide, at the openings of the carry-in / carry-out sections 5a and 5b, a curtain for suppressing the outflow of carbon dioxide gas when the apparatus is stopped during a rest period or the like, and an exhaust device for maintaining a working environment around the apparatus.

The carbon dioxide gas injection sections 7a, 7b, 7c are provided near the carry-in section 5a of the anesthesia processing section 6, the center in the longitudinal direction of the anesthesia processing section 5, and the carry-out section.
The carbon dioxide concentration detectors 8a and 8b are provided in the carry-in part 5a and the carry-out part 5b, respectively. The carbon dioxide gas injection sections 7a, 7b, 7c are connected to carbon dioxide gas supply means including a carbon dioxide gas cylinder and a carbon dioxide gas concentration adjusting device (not shown), respectively, and anesthesia processing detected by carbon dioxide gas concentration detectors 8a, 8b. A carbon dioxide gas or a mixed gas of a carbon dioxide gas and air necessary for making the carbon dioxide gas concentration in the part 6 about 25% is injected into the anesthesia treatment part 6. A nozzle capable of spraying a carbon dioxide gas or a mixed gas into a live bird in the bird cage 3 in a shower-like manner is attached at least to the tip of the carbon dioxide gas injection part 7a provided near the carry-in part 5a of the anesthesia processing part 6. Is preferred.

In order to anesthetize a live bird using this anesthesia processing apparatus 1, first, carbon dioxide or a mixed gas containing carbon dioxide is rapidly injected into the anesthesia processing section 6 from all the carbon dioxide injection sections 7 a, 7 b, 7 c. Then, by using the carbon dioxide concentration detector 8a, the carbon dioxide concentration in the anesthesia processing unit 6 is controlled to about 25%, which is optimal for putting a live bird into a suspended state. On the other hand, the carbon dioxide concentration detector 8b
It is used for confirming the concentration of carbon dioxide in the tunnel section 5.

The bird cage 3 which stores the live birds by operating the transport means 2
Is transported into the anesthesia processing section 6 to perform anesthesia processing on the live birds in the bird cage 3 by the carbon dioxide gas in the anesthesia processing section 6, and then transported from the unloading section 5b to the subsequent hanging bird step (not shown). At this time, air is entrained in the anesthesia processing section 6 together with the air in the feathers of the live birds and the bird cage 3, and the movement of the bird cage 3 in the anesthesia processing section 6 causes the carbon dioxide gas to flow to the carry-out section 5b side. Then, the concentration of carbon dioxide on the side of the loading section 5a of the anesthesia processing section 6 decreases.

In order to prevent a decrease in the carbon dioxide concentration on the side of the loading section 5a, the carbon dioxide concentration in the anesthesia processing section 6 is detected by a carbon dioxide concentration detector 8a provided near the loading section 5a of the anesthesia processing section 6,
A carbon dioxide gas or a mixed gas of an appropriate concentration is injected from the carbon dioxide gas injection section 7a on the carry-in section 5a side of the anesthesia processing section 6 to maintain the carbon dioxide gas concentration in the anesthesia processing section 6 within a predetermined range. At this time, since the atmospheric gas controlled to a predetermined concentration flows near the center of the anesthesia processing unit 6 and the vicinity of the carry-out unit 5b near the carry-in unit 5a, the gas flows from the carbon dioxide gas injection units 7b and 7c. It is not necessary to inject carbon dioxide gas, and the inside of the anesthesia processing unit 6 can be maintained under the optimum conditions for anesthetizing live birds with a minimum necessary amount of carbon dioxide gas.

As described above, since the anesthesia processing unit 6 deviated below the loading unit 5a and the unloading unit 5b is formed in the tunnel unit 5 formed in the transport path 4, carbon dioxide gas which is heavier than air is discharged from the anesthesia processing unit 6. Because it stays in the anesthesia processing unit 6 without flowing out, a small amount of carbon dioxide gas is injected without providing a shielding means such as a door at the opening of the loading / unloading units 5a and 5b, or injecting a large amount of carbon dioxide gas. The anesthesia processing section 6 can be maintained at a predetermined concentration of carbon dioxide gas simply by performing the above operation, and the predetermined anesthesia processing can be performed.

Therefore, the birds can be put into an optimal state of asphyxia, the workability of the hanging birds is improved, the wings are not broken, and blood can be released at the time of slaughter. Can be obtained.

The shape of the anesthesia processing unit 6, the position and number of the carbon dioxide gas injection units 7a, 7b, 7c, etc. can be appropriately set according to the size of the live bird, the number of live birds to be stored in the bird cage, and the like. In addition, a general device of this type can be used for the supply source of carbon dioxide gas, the mixing means with other gas such as air, and the adjustment of flow rate and concentration. Furthermore, the carbon dioxide concentration of the anesthesia processing unit 6 may be controlled using the carbon dioxide concentration detector 8b or both of the detectors 8a and 8b.

〔The invention's effect〕

As described above, the poultry anesthesia treatment apparatus of the present invention moves the anesthesia processing unit that performs anesthesia processing of live birds by injecting carbon dioxide gas below the loading / unloading unit of the tunnel formed in the transport path. Therefore, the amount of carbon dioxide gas flowing out of the anesthesia processing unit to the outside can be reduced, and predetermined anesthesia processing can be economically performed with a small amount of carbon dioxide gas.

Further, by injecting carbon dioxide from a plurality of carbon dioxide injecting units disposed in the anesthesia processing unit before the operation, the inside of the anesthesia processing unit can be quickly brought to a predetermined carbon dioxide gas concentration. In addition, during operation, the concentration in the anesthesia processing section can be set to a predetermined concentration, especially about 25%, which is optimal for anesthesia processing, by simply injecting carbon dioxide gas from the vicinity of the loading section of the anesthesia processing section. It can be performed reliably, workability during hanging birds is improved,
Since there is no breakage of the wings or the like, and the blood releasing property is not impaired, high-quality meat can be stably obtained.

[Brief description of the drawings]

The figure is a sectional view showing an embodiment of the anesthesia processing apparatus. 1 ... anesthesia processing device, 2 ... transportation means, 3 ... bird cage, 4
…… Conveyance path, 5 …… Tunnel part, 5a …… Load-in part, 5b ……
Carry-out part, 6 ... Anesthesia processing part, 7a, 7b, 7c ... Carbon dioxide injection part, 8a, 8b ... Carbon dioxide concentration detector

Claims (2)

(57) [Claims] 1. A poultry anesthesia treatment apparatus for applying a carbon dioxide gas to a poultry bird in a transport path for transporting the poultry to a slaughter process to make the poultry in a suspended state, wherein a part of the transport path is formed as a tunnel portion,
An anesthesia processing section is formed by displacing a predetermined length downward between the carry-in section and the carry-out section of the tunnel section, and carbon dioxide gas injection means is disposed at least in the vicinity of the carry-in section of the anesthesia processing section. Anesthesia processing equipment for poultry birds. 2. A plurality of carbon dioxide gas injection means are provided from at least a vicinity of a carry-in part to a carry-out part side of an anesthesia processing part, and before operation, carbon dioxide gas is injected into the anesthesia processing part by all carbon dioxide gas injection means. 2. The poultry anesthesia treatment apparatus according to claim 1, wherein carbon dioxide gas is injected into the anesthesia processing section by a carbon dioxide injection means near the carry-in section during injection and operation.