JP4887519B2 - Method and apparatus for cooling poultry carcass - Google Patents

Description

  The present invention is applied to a cooling process carried out in the process of disassembling a poultry carcass, improving the meat quality, reducing the occurrence of drip, and enabling traceability of the poultry carcass. The present invention relates to a cooling method and apparatus.

  The cooling process carried out in the dismantling process of the poultry carcass is to cool the carcasses at 38 to 42 ° C to at least 10 ° C or less and to cool to 5 to 7 ° C. As a cooling method, a continuous water immersion cooling method (cooling with cooling water of 2 to 3 ° C.) is generally adopted. In the dismantling process of the poultry carcass, the hair removal process is performed after the blood release process and the hot water soaking process, and then the hollowing process for removing the internal organs is performed. Thereafter, the hollow carcass is washed as a pretreatment in the cooling process, and a disinfectant such as sodium hypochlorite is placed in the chiller tank, and sterilization and sterilization are performed along with cooling. In the cooling process, the edible carcass is put into the chiller tank from the conveyor line, and the edible carcass is immersed and cooled for a predetermined time.

Patent Document 1 (International Publication No. WO01 / 021002) discloses a process for disassembling a poultry carcass including the above-described respective processing steps. In particular, FIG. 5 discloses a process in which the hollowed-out poultry carcass is first pre-cleaned in the cleaning water tank 51e and then cooled in the water tank 51f.
Patent Document 2 (Japanese Patent Publication No. 1-48726) discloses a configuration example of a chiller tank used in the cooling step.

  In the chiller tank disclosed in Patent Document 2, a screw screw blade is installed in a right cylindrical water channel in which a cooling water flow is formed, and the carcass is submerged in the right cylindrical water channel with cooling water. It is introduced into the inlet of the straight cylindrical water channel. Then, the screw blade is rotated about its axis, and the carcass is cooled in the water channel while being conveyed by the screw blade. Thereafter, the carcass cooled by the screw blades is transported into the outlet-side water tank, and is transported to the outside by a scraping conveyor with the start end submerged.

  Conventionally, a rake (comb tooth) type conveyor has been used as the scraping conveyor. However, since the number of parts is large, it is expensive and difficult to clean. When cleaning is performed, it is necessary to lift the rake conveyor upward. Also, since the open area of the water tank where the rake conveyor is installed is large, when washing with hot water, steam is dissipated to the outside, resulting in poor thermal efficiency, and debris such as condensation and dust falling from the ceiling into the water channel There was a problem of mixing.

  For example, there is a rotary conveyor as a means for carrying out the food carcass that can solve the above problem. In this method, a plurality of buckets are rotatably attached to a rotating shaft installed horizontally in the same direction as the rotating shaft of the screw blade on the downstream side of the screw blade provided in the cooling water channel, and are conveyed from the screw blade. The carcass is picked up by the bucket and transported to the outside.

International Publication WO01 / 021002 Japanese Examined Patent Publication No. 1-48726

  The conventional cooling process after hollowing out the poultry carcass is to allow the main cooling chiller tank to perform the main cooling function, even when the pre-cooling chiller tank is arranged in front of the main cooling chiller tank, The main purpose of the chiller tank for pre-cooling was to remove dirt from the abdominal cavity of the hollow carcass. Therefore, the distribution of the cooling load between the pre-cooling chiller tank and the main cooling chiller tank is a ratio of 1: 9.

However, in the conventional cooling process, the temperature change of the poultry carcass becomes large in the main cooling chiller tank having the main cooling function, so that the thermal efficiency is poor and uneconomical.
In addition, since the cooling in the chiller tank for pre-cooling is slow cooling, a gelatinous substance is formed between the skin and the meat of the poultry carcass after cooling, which makes it easier for the meat and skin to be peeled off and the taste is reduced. to degrade. In addition, there is a problem that the meat is no longer tightened, the shape is deteriorated, and the commercial value is lowered. Furthermore, there is a problem in that the moisture absorption or moisture adhesion rate of the poultry carcass during the cooling process is increased, drip is generated after packaging, and the commercial value is further reduced.

  Also, in recent years, the carcass origin display has become stricter, and traceability (first-in first-out) is possible by ensuring first-in-first-out of the carcass when cooling the poultry carcasses in the chiller tank during the cooling process. Therefore, it is important to clarify the origin of the poultry carcass after dismantling.

  The rotary conveyor has the advantage that the installation area can be saved and the number of the poultry carcasses discharged from the bucket can be adjusted by changing the number of rotations of the rotating shaft. However, with respect to the cooling water flow that flows along the axial direction of the screw blades and flows in the carcass transport direction, the rotating bucket forms a stirring flow in the direction opposite to the carcass transport direction, and the stirring flow causes the poultry carcass In the aspect of traceability management, the forward movement is hindered. May not be suitable for use.

  In view of the problems of the prior art, the present invention is to provide a food product carcass having a high commercial value that is uniform and tight and does not generate drip in the cooling process performed in the process of disassembling poultry carcass. With the goal. It is another object of the present invention to provide a cooling method and apparatus that can be traced, have high thermal efficiency, and can achieve cost reduction.

In order to achieve such an object, the method for cooling a poultry carcass of the present invention comprises:
In the cooling method of the edible carcass, the edible carcass that has been depilated and removed in the demolition processing step of the edible carcass is put into a chiller tank in which cooling water is stored and cooled while being conveyed in the chiller tank.
Preparing a pre-chilling chiller tank for pre-cooling the edible carcass with the body temperature remaining after hollowing out, and a main cooling chiller tank for cooling the pre-cooled edible carcass,
By circulating cooling water from refrigeration units installed separately in the precooling chiller tank and the main cooling chiller tank, the distribution of the cooling load of the precooling chiller tank to the poultry carcass is made larger than the cooling load of the main cooling chiller tank. Preferably, the cooling load distribution between the pre-cooling chiller tank and the main cooling chiller tank is 5.5 to 6.5 to 4.5 to 3.5,
The poultry carcass is first put into a precooling chiller tank for rapid cooling treatment, and then put into a main cooling chiller tank for soaking and cooling treatment,
Supply clean water is supplied to the main cooling chiller tank, and overflow water is taken out from the main cooling chiller tank and supplied to the pre-cooling chiller tank.

  In the method of the present invention, the chiller tank is composed of a pre-cooling chiller tank and a main-cooling chiller tank, and the cooling water is circulated from the freezing devices separately installed in the pre-cooling chiller tank and the main-cooling chiller tank, respectively, so that the poultry carcass The cooling load distribution of the pre-chilling chiller tank is made larger than the cooling load of the main cooling chiller tank. The poultry carcass is first put into a precooling chiller tank for rapid cooling. Thus, by performing rapid cooling in the initial stage of cooling, it is possible to obtain a tight-fed poultry carcass that does not produce gelatinous substances, and to suppress water absorption of the poultry carcass. The occurrence of drip after packaging can be prevented.

Next, the poultry carcass is put into a main cooling chiller tank to perform soaking and cooling. This soaking cooling eliminates the uneven temperature distribution in the poultry carcass caused by the rapid cooling of the previous process, eliminates residual stress caused by the difference in thermal expansion in the poultry carcass, and achieves the target temperature. Enables uniform cooling.
Further, by dividing the cooling process into two stages, the temperature change of the poultry carcass at the inlet and outlet at each chiller tank can be reduced, thereby improving the thermal efficiency.

  In the method of the present invention, the clean water for replenishment is supplied to the main cooling chiller tank, and the overflow water is taken out from the main cooling chiller tank and supplied to the precooling chiller tank. Therefore, the cleaning effect and the sterilization / sterilization effect of the poultry carcass after the cooling process can be improved. In addition, you may include disinfectants, such as sodium hypochlorite, in the replenishment clean water.

  In the method of the present invention, by allowing sequential feeding of the poultry carcass from the time of feeding the poultry carcass at the inlet of the pre-chilling chiller tank and the main cooling chiller tank to the time of discharging at the outlet, the food in the entire cooling process Traceability of bird carcasses can be enabled.

  Further, in the method of the present invention, the amount of fresh water for replenishment is controlled based on the carcass insertion advance notice information detected by the carcass sensor provided on the upstream side of the precooling chiller tank in the direction of feeding the carnivorous carcass. The water level of the cooling water in the chiller tank or the main cooling chiller tank may be adjusted. This makes it possible to predict in advance the amount of cooling water that will be pushed away by feeding poultry carcass in the pre-cooling chiller tank or the main cooling chiller tank, and to save water without causing the cooling water to overflow from the pre-cooling chiller tank or the main cooling chiller tank. And

Next, the apparatus for cooling a poultry carcass of the present invention for carrying out the method of the present invention comprises:
In the cooling device for edible carcass that cools while feeding the chilled chicken carcass that has been depilated and hollowed out in the dismantling process of the edible carcass into a chiller tank storing cooling water,
A pre-chilling chiller tank for pre-cooling the edible carcass with the body temperature remaining after the hollowing out, and a main cooling chiller tank for cooling the pre-chilled edible carcass,
Refrigeration facilities installed separately for supplying cooling water to the pre-cooling chiller tank and the main cooling chiller tank,
It consists of a supply part of clean water for replenishment provided in the main cooling chiller tank, and an overflow piping mechanism for taking out overflow water from the main cooling chiller tank and supplying it to the precooling chiller tank.
Distribute the cooling load of the precooling chiller tank to be larger than the cooling load of the main cooling chiller tank, and first put the poultry carcass into the precooling chiller tank for rapid cooling treatment, and then put it into the main cooling chiller tank for temperature equalization. The cooling / cooling process is performed.

With this configuration, the method of the present invention can be carried out, and the same effects as the method of the present invention can be obtained.
In the apparatus of the present invention, a pre-cleaning tank for pre-cleaning the poultry carcass is provided upstream of the pre-cooling chiller tank in the carcass transport direction, and overflow water generated in the pre-cooling chiller tank is supplied to the pre-cleaning tank. be able to. Thereby, the overflow water generated in the pre-cooling chiller tank can be effectively used for preliminary cleaning without being wasted.

Moreover, in this invention apparatus, it is good to comprise as follows as a mechanism which takes out overflow water with the precooling chiller tank or the main cooling chiller tank.
That is, a cooling water surface forming space is connected to the cooling water passage formed inside the chiller tank body, a float is floated on the cooling water surface formed in the cooling water surface forming space, and the cooling water surface is raised or lowered together with the float. Thus, a water intake port that moves up and down is provided, and the water intake port is connected to the discharge port through a flexible pipe, so that a certain amount of overflow water can be taken out regardless of the level of the cooling water surface.

When a predetermined amount of edible carcass is introduced into the cooling water channel, the water level rises due to the cooling water that the poultry carcass pushes away, and a large amount of cooling water may overflow from the cooling water channel. With this configuration, a certain amount of overflow water can be discharged from a low water level, so that a large amount of overflow water can be prevented from overflowing in a short time.
If a large amount of cooling water overflows in a short time, the entire overflow water cannot be used and a part of it must be discarded, but the above configuration allows the overflow water to be used without waste.

  In addition, in the present invention apparatus, if it is possible to forward the poultry carcass from the time of feeding the poultry carcass at the inlet of the pre-cooling chiller tank and the main cooling chiller tank to the time of discharging at the outlet, the entire cooling process Can be traceable.

As an example of the configuration of the pre-cooling chiller tank or the main cooling chiller tank for enabling traceability, the pre-cooling chiller tank or the main cooling chiller tank includes:
A chiller tank main body that is installed in a cooling water channel that forms a right cylindrical shape with a spiral screw blade, and rotates while rotating the screw blade around an axis to convey a poultry carcass,
An outlet housing connected to the downstream side in the transport direction of the straight cylindrical water channel and having a tapered cross-sectional shape toward the downstream side in the transport direction;
A casing that is connected to the downstream end of the cooling screw blade in the conveying direction inside the outlet housing, is disposed obliquely upward toward the downstream end of the conveying direction, and covers at least the lower half of the blade circumferential surface. A helical screw blade for discharging,
The poultry carcass transported to the downstream end of the cooling screw blade is configured to be carried outside by the discharge screw blade.

  With the above-described configuration, the feeding path of the poultry carcass in the same direction as the transport path can be continuously formed on the downstream side of the transport path of the carcass formed in the right cylindrical water channel. At the end, the carcass can be transferred to the discharge screw blade without causing a stirring flow of cooling water. Further, since the outlet housing has a tapered cross-sectional shape toward the downstream side in the conveying direction, the poultry carcass can be collected toward the discharging screw blades in the outlet housing.

  In this way, since the edible carcass that has reached the downstream end of the cooling screw blades can be sequentially transferred to the discharging screw blades, traceability of the edible carcass in the chiller tank is made possible.

  In addition, since the specific gravity of the poultry carcass is about 1.1 and slightly heavier than water, it is conveyed while sinking in the water channel. Therefore, it is desirable that the starting end portion of the discharge screw blade installed continuously to the downstream end of the cooling screw blade is disposed near the bottom of the water channel. Thereby, the delivery of the poultry carcass to the discharge screw blade at the downstream end of the cooling screw blade can be performed smoothly.

  Moreover, since the screw blade for discharge which has the said structure has few parts compared with the conventional rake type conveyor, a structure can be simplified. Further, since the outlet housing has a tapered cross-sectional shape toward the downstream side in the transport direction, there is an advantage that the installation area is small. Further, since the number of parts is small, there is no blind spot in the case of cleaning or cleaning, and maintenance is easy, such as easy cleaning or cleaning. Furthermore, since the cross section of the cooling water channel is circular, the cooling water capacity can be increased with respect to the installation area of the cooling water channel, and space saving can be achieved.

  In the chiller tank having the above-described configuration, it is preferable that the feeding capacity of the poultry carcass is determined from the area and the rotational speed of the screw blades, and the discharging screw blades are operated so that the conveying capacity of the discharging screw blades is equal to or higher than the cooling screw blades. Thereby, since it can convey with the space | interval of each poultry carcass conveyed with the screw blade for cooling and the screw blade for discharge, traceability can be made easy.

  In addition, clogging of the poultry carcass does not occur during transportation, and the carcass cooling process in the straight cylindrical water channel and the poultry carcass removal in the outlet housing can be performed smoothly. Preferably, the conveying capacity of the discharging screw blade is 1.3 to 1.7 times that of the cooling screw blade.

Further, as another configuration example of the pre-cooling chiller tank or the main cooling chiller tank for enabling traceability, the pre-cooling chiller tank or the main cooling chiller tank includes:
A chiller tank main body that is installed in a cooling water channel that forms a spiral tube with a spiral screw blade, and that rotates the screw blade around its axis to cool while transporting a poultry carcass,
The inlet of the poultry carcass provided on the upper wall of the cooling water channel is slidable from the inlet side to the outlet side of the cooling water channel,
The first poultry bird is moved while moving the inlet port from the original position on the inlet side to the outlet side at a constant speed slower than the feed speed of the screw blades in the cooling channel by one or more times the pitch length of the screw blades. Put carcass group,
Next, the insertion port is returned to the original position on the inlet side, and the second poultry carcass group is input in the same operation.

  Since the screw blades rotate at a constant speed in the cooling water channel, the poultry carcass that has fallen between the blades is transported forwardly toward the axial outlet by the twisting (tilting) of the blades. Therefore, traceability becomes possible. In order to manage traceability, it is necessary to prevent each group of poultry carcasses from falling into the same blade space, and it is preferable to provide an interval of at least one pitch between the groups of poultry carcasses. However, there is a problem that the processing capacity is reduced accordingly.

  With the above-described configuration, the increased amount of the poultry carcass group can be evenly distributed between the pitches of the screw blades, and an interval of at least one pitch of the screw blades can be provided between the pitch of the next poultry carcass group. If the speed at which the inlet is moved from the original position on the inlet side to the outlet side varies, the number of poultry carcasses distributed between the screw blades will vary, so the moving speed of the inlet is constant. There is a need.

The operation of moving the input port from the original position on the inlet side to the outlet side is performed automatically. After the first poultry carcass group has been inserted, the operation of returning the input port from the outlet side end to the original position on the inlet side may be automated. This may be performed manually, and in this way, the control device for the mobile device can be simplified.
As a result, a slightly larger number of poultry carcasses than the planned number of feeds is evenly distributed between the screw blades, so that the number of poultry carcasses is not increased locally and the water flow is obstructed. Without obtaining a stable cooling effect.

  According to the chiller tank having the above-described configuration, traceability in the inlet portion of the chiller tank main body and the inside of the chiller tank main body is possible, and at least one pitch of the screw blades is provided between the first edible carcass group and the second edible carcass group. Since a gap can be provided, even if a discharge device that is not suitable in terms of traceability at the outlet of the chiller tank main body, for example, a discharge device comprising a rotary conveyor, the first and second poultry carcass groups Will not mix at the exit. Accordingly, traceability can be achieved throughout the cooling process.

  According to the method and apparatus of the present invention, in the cooling process performed in the process of disassembling the poultry carcass, it is possible to obtain a poultry carcass having a high commercial value that is uniform and tight and does not generate drip. Also, traceability is possible, heat efficiency is good, and cost reduction can be achieved.

  Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not intended to limit the scope of the present invention to that unless otherwise specified.

(Embodiment 1)
Next, a first embodiment in which the present invention is applied to the cooling process performed after the hollowing out process in the dismantling process of the poultry carcass will be described with reference to FIGS. FIG. 1 is a vertical elevation view of a chiller tank according to the present embodiment, FIG. 2 is a plan view, and FIG. 3 is a right side view. This chiller tank is used for both the pre-cooling chiller tank 10a and the main cooling chiller tank 10b shown in FIG. 9 (block diagram showing the entire cooling process).

  1 to 3, the chiller tank 10 has a long straight cylindrical shape with a circular cross section, and is provided with an inlet 12 for introducing cooling water close to 0 ° C. on the inlet side. Inside the chiller tank 10, a screw blade 20 including a spiral wing portion 21 and a shaft 22 is installed. The interval between the inner wall surface of the chiller tank 10 and the tip of the blade 21 of the screw blade 20 is set to be a minute interval of, for example, 3 cm or less so that the cooling water flow does not escape from here.

  Further, an openable / closable lid 13 is provided on the upper surface of the chiller tank 10 so that the inside of the chiller tank 10 can be visually observed by opening the lid 13 when necessary. Scaffolds 14 are provided in the lower part of the chiller tank 10 at intervals in the longitudinal direction, and the scaffolds 14 stably support the right cylindrical chiller tank 10 on the floor surface f. A scaffold 14 provided at the inlet of the chiller tank 10 extends in a direction perpendicular to the longitudinal direction of the chiller tank 10, and also serves as a drive motor 24 for the screw blade 20 and a support base for the speed reducer 25.

  The shaft end of the shaft 22 of the screw blade 20 is attached with a chain wheel 23 outside the chiller tank 10, while the output shaft of the drive motor 24 installed on the scaffold 14 outside the chiller tank 10 is decelerated by a speed reducer 25, A chain wheel 26 is attached to the output shaft of the speed reducer 25. A chain 27 is wound between the chain wheel 26 and the chain wheel 23 to transmit the rotation of the drive motor 24 to the screw blade 20.

  An outlet housing 30 is connected to the chiller tank 10 on the downstream side of the chiller tank 10 in the carcass conveyance direction. The outlet housing 30 has a tapered cross-sectional shape toward the downstream side in the carcass conveyance direction. That is, the bottom surface of the outlet housing 30 is an inclined surface 30a inclined upward toward the downstream side in the carcass conveyance direction, and both side surfaces 30b and 30c form a tapered cross-sectional shape.

  Inside the outlet housing 30, a carcass discharge screw blade 31 is installed. The discharge screw blade 31 has a start end portion disposed near the bottom surface of the outlet housing 30 in the vicinity of the end of the cooling screw blade 20, and obliquely toward the downstream end in the carcass carrying direction along the inclined surface 30a of the outlet housing 30. It is arranged to be inclined upward. Then, the terminal portion of the discharge screw blade 31 floats above the cooling water surface L, and the carcass carried out by the discharge screw blade 31 is discharged to the outside from the outlet chute 43 provided in the outlet housing 30.

  The configuration of the discharging screw blade 31 will be described with reference to FIG. FIG. 4 is a developed perspective view of the discharge screw blade 31. In FIG. 4, the discharging screw blade 31 includes a spiral wing portion 32 and a shaft 33. The diameter of the wing part 32 is smaller than that of the wing part 21 of the cooling screw blade 20. The discharge screw blade 31 is accommodated in a casing 34 whose upper surface is opened, and a shaft 33 is inserted into through holes 35 and 36 formed in both end surfaces of the casing 34. The upper side 34 a of the casing 34 is formed at a height that substantially coincides with the upper end height of the wing portion 32, and the bottom surface 34 b of the casing 34 is formed in an arc shape along the tip shape of the wing portion 32. A plurality of round hole-shaped flow holes 37 through which the cooling water w passes are formed on the bottom wall 34 b on the upstream side wall surface in the carcass conveyance direction (the lower side wall surface in the axial direction) and facing the discharge port 42 described later. Is provided.

  As shown in FIG. 1, at the end of the discharge screw blade 31, a drive motor 39 of the discharge screw blade 31 is attached to a support base 38 fixed to the outlet housing 30, and a speed reducer 41 is attached to the output shaft of the drive motor 39. The shaft 33 is connected via 2, illustration of the support base 38, the drive motor 39, and the reduction gear 41 is abbreviate | omitted. The discharge screw blades 31 are arranged toward the downstream side in the carcass conveyance direction so that the casing 34 follows the inclined surface 30 a of the outlet housing 30.

  A rectangular discharge port 42 is provided at the lower portion of the outlet housing 30 in accordance with the arrangement position of the flow hole 37 provided in the casing 34, and the discharge port 42 becomes a substantially square opening at a position 42a. Connected to the cooling water circulation pipe 51.

  Next, the configuration of the cooling water circulation system 50 will be described with reference to FIG. In FIG. 1, a cooling water circulation pipe 51 connecting the discharge port 42 and the inlet of the chiller tank 10 is installed, and the cooling water pump 51 discharges the cooling water w from the discharge port 42 and circulates it to the inlet of the water tank 1. 52 and a heat exchanger 53 for recooling the cooling water are interposed. The heat exchanger 53 is supplied with a refrigerant r from a refrigerator (not shown) constituting the refrigeration cycle (refrigerator 54 in FIG. 9), and heat is exchanged between the coolant and the refrigerant r, so that the temperature is lowered to 2 to 3 ° C. Recool.

  In the chiller tank 10 having such a configuration, when the edible carcass is cooled, the edible carcass is introduced into the chiller tank 10 from the inlet 12. In the chiller tank 10, the cooling water w having a temperature of 2 to 3 ° C. is filled up to the water level L, and a water flow toward the downstream side in the carcass conveyance direction is formed by the pump 52. The water level L is maintained at a position where the inside of the chiller tank 1 is submerged by about 90%. As a result, the carcass is not cooled and transported, and the water level L does not reach the opening / closing lid 13 provided at the top of the chiller tank 10 so that water does not leak from the opening / closing lid 13. In addition, it is unnecessary to attach a watertight seal packing to the opening / closing lid 13.

  The cooling screw blade 20 rotates when the driving force of the driving motor 24 is transmitted through the speed reducer 25, the chain wheel 26, the chain 27, and the chain wheel 23. The poultry carcass thrown into the chiller tank 10 is conveyed downstream while being cooled by the cooling water w by the rotation of the cooling screw blades 20.

  FIG. 5 is a perspective view of the cooling screw blade 20. As shown in FIG. 5, a large number of blade surface through holes 28 are formed in the blade portion 21 of the cooling screw blade 20 at portions where the phase is changed by 180 ° for each pitch. The wing surface through-hole 28 has a diameter of, for example, 10 to 15 mmφ and does not include a carcass wing or the like. With this configuration, a meandering water flow a passing through the blade surface through hole 28 can be formed as shown in the figure. Thereby, the water flow can pass through the screw blades, the contact between the carcass and the cooling water becomes good, and the cooling efficiency can be improved. In order to form an effective meandering water flow a, the position of the blade surface passage hole 28 needs to be a position where the phase is changed by 90 to 180 ° for each pitch.

  In addition, the carcass conveyance capability of a screw blade having a spiral wing is determined by the blade area and the rotational speed of the screw blade. In the present embodiment, the operation is performed with the conveying capacity of the discharging screw blade 31 set to 1.5 times the conveying capacity of the cooling screw blade 20. As a result, the jam of the carcass at the place where the cooling screw blades 20 and the discharge screw blades 31 are transferred is eliminated, and the first-in first-out operation can be surely performed by providing a margin in the interval between each poultry carcass. Yes.

  The carcass conveyed by the cooling screw blades 20 and reaching the downstream end of the cooling screw blades 20 is taken over by the discharging screw blades 31. Since the specific gravity of the poultry carcass is slightly larger than 1, it is transported in the aquarium 10 while tending to sink in the cooling water. Since the start end of the discharge screw blade 31 is disposed near the end of the cooling screw blade 20 and near the bottom of the outlet housing 30, the discharge screw blade 31 is disposed at the end of the cooling screw blade 20 at a deep position in the cooling water. The reached poultry carcass is smoothly delivered to the discharging screw blade 31.

The poultry carcass delivered to the discharge screw blades 31 is transported above the cooling water surface L by the discharge screw blades 31 and carried out from the discharge chute 43.
On the other hand, the cooling water w reaches the discharge port 42 through the circulation hole 37 formed in the casing 34 of the discharge screw blade 31, and then passes through the cooling water circulation pipe 51 and again at 2 to 3 ° C. in the heat exchanger 53. After being cooled down, it is returned to the inlet of the chiller tank 10.

  Next, a cleaning system for the chiller tank 10 will be described. In FIG. 1, a plurality of cleaning liquid spray nozzles 15 are provided at predetermined intervals along the longitudinal axis direction on the inner upper surface of the chiller tank 10. The cleaning liquid spray nozzle 15 is directed downward, and can clean the blade portion 21 and the shaft 22 of the cooling screw blade 20 disposed below. A plurality of cleaning liquid spray nozzles 29 are also provided at predetermined intervals on the shaft 22 of the cooling screw blade 20. The cleaning liquid injection nozzle 29 is directed upward. A plurality of cleaning liquid spray nozzles 44 are also arranged at a predetermined interval on the ceiling surface 30 d of the outlet housing 30. The cleaning liquid injection nozzle 44 is directed to the discharge screw blade 31 disposed below.

  For example, hot water of about 85 ° C. is used as the cleaning liquid for the cleaning liquid spray nozzles 15, 29 and 44, and hot water is supplied to these spray nozzles from a hot water supply source (not shown) during cleaning. A sliding door 16 is provided at the inlet 12, and the inlet 12 can be shielded by the door 16. The discharge chute 42 is also provided with a hinged door 45 so that the discharge chute 43 can be opened and closed. And at the time of washing | cleaning of this apparatus, it can be sealed over the whole apparatus by closing the inlet 12 and the discharge chute 43. FIG.

  And the inside of the water tank 10 and the exit housing 30 is wash | cleaned by injecting warm water from the injection nozzles 15, 29, and 44, after sealing the whole chiller tank 10. FIG. By injecting hot water from the injection nozzle 15, the blade portion 21 and the shaft 22 of the cooling screw blade 20 can be washed. Moreover, the ceiling surface of the water tank 1 can be cleaned by spraying warm water from the spray nozzle 29. Further, the entire area of the inner peripheral surface of the water tank 1 can be cleaned by the spray nozzle 29 by operating and rotating the cooling screw blade 20 at the time of cleaning.

  Further, since the injection nozzle 44 installed on the ceiling surface 30 d of the outlet housing 30 is directed to the discharge screw blade 31, the injection nozzle blade 31 is drilled not only in the blade portion 32 and the shaft 33 of the discharge screw blade 31 but also in the casing 34. The flow hole 37 thus made can also be cleaned. Thereby, the clogging of the flow holes 37 can be eliminated, and the flow of the cooling water w can be prevented from being hindered.

  As described above, in the chiller tank 10, the starting end portion of the discharging screw blade 31 is arranged in the vicinity of the end portion of the cooling screw blade 20 in the carcass conveyance direction, and the specific gravity is slightly larger than 1 and deep in the water tank 1. Since the start end portion of the discharge screw blade 31 is arranged in the vicinity of the bottom of the outlet housing 30 so that the portion is matched with the carcass to be transported, the carcass that has reached the end portion of the cooling screw blade 20 is discharged. The screw blade 31 can be smoothly delivered.

  Further, since the discharge screw blades 31 are arranged along the direction of the cooling water flow flowing in the chiller tank 10, the cooling water flow is not stirred by the discharge screw blades 31. Further, since the outlet housing 30 has a tapered cross section toward the downstream end in the conveying direction, the carcass can be naturally gathered on the discharging screw blade 31.

  Further, a flow hole 37 for cooling water w is provided in the wall near the start end of the casing 34 of the discharge screw blade 31, a discharge port 42 is provided on the back side of the flow hole 37, and the cooling water w is discharged from the discharge port 42. As a result, a cooling water flow passing through the starting end of the discharge screw blade 31 is formed. From the above configuration, the poultry carcass that has been sequentially transported by the cooling screw blades 20 is reliably delivered to the discharge screw blades 31 in the transport order. Therefore, traceability of the poultry carcass becomes possible.

  Moreover, since the screw blade 31 for discharge | emission is provided as a mechanism which discharges a carcass outside by the exit housing 30, the structure of a discharge | emission mechanism can be simplified. Thus, since the number of parts of the discharge mechanism is small, the required power can be reduced, the equipment cost can be reduced, and the inside of the apparatus can be easily cleaned and cleaned. Moreover, since the cross section of the water tank 10 is circular, the amount of cooling water can be increased with respect to the installation area of the cooling water channel, and the outlet housing 30 is tapered toward the downstream end in the transport direction. Therefore, the installation space for the apparatus can be reduced.

  Further, since the cleaning liquid injection nozzles 15, 29 and 44 are provided, the CIP cleaning work in the apparatus can be automated, and the entire inner surface of the water tank 1, the cooling screw blades 20, the discharge screw blades 31 and the like can be provided. All can be cleaned well. Thus, since it can wash | clean without disassembling an apparatus, a cleaning operation can be made easy.

  Furthermore, since the chiller tank 10 and the outlet housing 30 can be completely sealed during cleaning, steam does not leak to the outside during cleaning with warm water. Therefore, the water droplets from which the steam has condensed are not dropped from the ceiling. Moreover, foreign substances such as dust do not enter the apparatus. Further, since the entire apparatus can be completely sealed, heat radiation can be suppressed during washing with hot water, and thermal efficiency can be improved.

  Further, in the blade portion 21 of the cooling screw blade 20, by providing a large number of cooling water circulation holes 28 at positions different in phase by 180 ° for each pitch, the cooling water flow a passing through the blade portion 21 while meandering is generated. The cooling efficiency of the carcass can be improved by making the contact between the carcass conveyed between the wings 21 and the cooling water flow w dense.

  In addition, instead of the flow hole 37, a large area opening is opened at a position facing the discharge port 42 of the casing 34, and a slat-like flat steel is attached in the direction parallel to the longitudinal direction of the casing 34. Parallel slit holes may be provided.

  Next, the overflow mechanism of the chiller tank 10 will be described with reference to FIGS. 6 to 8, a cooling water surface forming box 60 is continuously provided on one side surface in the longitudinal direction of the water tank 10 so as to project laterally. The partition wall of the water tank 10 facing the inside of the cooling water surface forming box 60 is provided with an opening 71a over the height range where the cooling water surface is formed, so that the cooling water surface is formed in the cooling water surface forming box 60. It has become.

  A float 61 is floated on the cooling water surface inside the cooling water surface forming box 60, and a water intake pipe 62 having a water intake port 63 is attached to the float 61. The intake pipe 62 is connected via a bellows pipe 64 to a discharge pipe 65 fixed to the partition wall of the cooling water surface forming box 60. The mounting height position of the water intake port 63 with respect to the float 61 can be changed by turning a handle 63a attached to the upper part of the water intake port 63. Thereby, the amount of overflow water per unit time that can be taken from the water intake 63 can be adjusted.

  A support frame 66 is fixed inside the cooling water surface forming box 60, and one end of four arms 67 is pivotally supported on the support frame 66 so as to be rotatable. A float 61 is attached to the other end of the arm 67, and the float 61 is supported by the arm 67, and only moves up and down according to the water surface height of the cooling water formed in the cooling water surface formation box 60. It does not move in the direction.

Inside the cooling water forming box 60, an overflow pipe 68 having a water intake port 68a are fixed to the upper end, so that the height of the intake port 68a is consistent with high water h ₁ Acceptable coolant Is arranged. The overflow water w1 discharged from the discharge pipe 65 or the overflow pipe 68 to the outside of the cooling water surface formation box 60 is temporarily stored in a tank 69 installed outside the chiller tank 10.

  An inspection opening 71 a that can be opened and closed by a lid 72 is provided on the upper surface 71 of the cooling water surface forming box 60, and a discharge pipe 73 that is closed during operation of the chiller tank 10 is provided on the bottom surface of the cooling water surface forming box 60. ing.

In such a configuration, the cooling water w in the water tank 10 becomes the highest water level h _1, is discharged from the overflow pipe 68 of the fixed cooling water level is not exceed h _1. When a predetermined amount of edible carcass is introduced with the water level h _1, the water level of the cooling water that pushes away the edible carcass rises, and a large amount of cooling water overflows in a short time through the fixed overflow pipe 68. Will come out.

During the initial supply of clean water into the chiller tank 10, clean water s is supplied from the storage tank 77 to the chiller tank 10 via the supply pipe 74. A water level sensor 76 made of an electrode rod is provided inside the chiller tank 10, carcasses are then supplied clean water s to low level h ₂ minus the increase in the water level when it is turned on. In other words, when the clean water s reaches the low water level h ₂ by providing the electromagnetic valve 75 in the supply pipe 74, the detection signal of the water level sensor 76 is input to the controller 85 and the electromagnetic valve 75 is automatically closed. It is configured as follows. Thus, the initial water filling can be automatically performed, and the overflow water w1 can be prevented from overflowing from the upper inlet 12 during the initial water filling. This operation is automated and does not require any operator operation.

  FIG. 9 is a block diagram showing a cooling process performed after the hollowing out process in the dismantling process of the poultry carcass. In FIG. 9, the poultry carcass c after the hollowing process is suspended on the shackle 81 of the transport device 80 and transported to the cleaning tank 82. The poultry carcass c is immersed and washed in the washing water w while being conveyed in the washing tank 82. A pre-cooling chiller tank 10a and a main-cooling chiller tank 10b are disposed on the downstream side of the cleaning tank 82. As these chiller tanks, a chiller tank 10 shown in FIGS. 1 to 8 is used.

  The precooling chiller tank 10a and the main cooling chiller tank 10b are separately provided with a cooling water circulation system 50 including a cooling water circulation pipe 51, a heat exchanger 53, a refrigerator 54, and the like, so that the precooling chiller tank 10a and the main cooling chiller tank are provided. The distribution of the cooling load for the 10b poultry carcass c can be changed. In the present embodiment, the cooling load of the pre-cooling chiller tank 10a and the main cooling chiller tank 10b is 6 to 4. Under this cooling load distribution, rapid cooling is performed in the precooling chiller tank 10a, and soaking cooling after rapid cooling is performed in the main cooling chiller tank 10b.

  The poultry carcass c is cooled in the pre-cooling chiller tank 10 a, discharged from the outlet chute 43, and then charged into the main cooling chiller tank 10 b via the conveyor 83 through the inlet 12. The poultry carcass c is cooled in the main cooling chiller tank 10 b, discharged from the exit chute 43, and conveyed to the next process via the conveyor 84.

  Regarding the replacement of the cooling water required during operation, a replenishment clean water storage tank 76 is installed near the main cooling chiller tank 10 b, and the replenishment clean water is replenished to the main cooling chiller tank 10 b via the pipe 74. The Further, a carcass detection sensor 86 is provided in the transport device 80 upstream of the pre-cooling chiller tank 10a, the carcass detection sensor 86 detects the presence or absence of the poultry carcass c, and inputs the detection signal to the controller 85. Thus, the opening and closing of the electromagnetic valve 75 is controlled. As the carcass sensor 86, a non-contact proximity sensor such as an optical sensor is used.

  That is, the clean water s is supplied from the storage tank 77 to the main cooling chiller tank 10b during the time when the poultry carcass c is put into the pre-cooling chiller tank 10a or the main cooling chiller tank 10b, When the body c is not put into the chiller tank 10a or 10b, the supply of the clean water s is automatically stopped. Note that a disinfectant such as sodium hypochlorite is mixed in the clean water s so that sterilization and sterilization can be performed simultaneously with cooling.

  According to this embodiment having such a configuration, the pre-chilling chiller tank 10a and the main-cooling chiller tank 10b are provided in the cooling process, and the distribution of the cooling load between the pre-cooling chiller tank 10a and the main-cooling chiller tank 10b with respect to the poultry carcass c is 6 Pair 4 is used, and rapid cooling is performed in the precooling chiller tank 10a. By performing rapid cooling at the initial stage of cooling, it is possible to obtain a tight-fed poultry carcass c in which no gelatinous material is generated between the skin and the meat, and to suppress moisture absorption of the poultry carcass c Therefore, the occurrence of drip after packaging can be prevented.

  Next, by uniform cooling the edible carcass in the main cooling chiller tank 10b, the uneven temperature distribution in the edible carcass caused by the rapid cooling in the previous process is eliminated, and the heat in the edible carcass is eliminated. The residual stress caused by the difference in expansion is eliminated, and uniform cooling to the target temperature is possible. Further, by dividing the cooling process into two stages, the temperature change of the poultry carcass at the inlet and outlet at each chiller tank can be reduced, thereby improving the thermal efficiency.

  In addition, by using the pre-cooling chiller tank 10a and the main-cooling chiller tank 10b having the above-described configuration, it is possible to sequentially feed the poultry carcass c in these chiller tanks. And by arranging these chiller tanks in series, traceability in the whole cooling process becomes possible.

  The precooling chiller tank 10a and the main cooling chiller tank 10b are provided with an overflow mechanism shown in FIGS. The cooling water overflowed from the overflow mechanism of the main cooling chiller tank 10b is supplied to the precooling chiller tank 10a by the pump 70 via the overflow pipe 78, and is effectively used as cooling. The cooling water that has overflowed from the overflow mechanism of the pre-cooling chiller tank 10a is supplied to the cleaning tank 82 by the pump 70 via the overflow pipe 78, and is effectively used as cleaning water.

  As described above, if a large amount of cooling water overflows in the chiller tank 10a or 10b in a short time and is discharged to the tank 69, the capacity of the pump 70 is exceeded and the tank 69 overflows and flows to the discharge port. . On the other hand, if the edible carcass c is not put into the aquarium 10, the overflow water disappears and cannot be supplied as precooled water or washing water upstream, which hinders the cooling process of the edible carcass c.

In this embodiment, since the intake pipe 62 is attached to the float 61, the intake pipe 62 extends from the low water level h ₂ to the high water level h ₁ where a predetermined quantity of the poultry carcass c is introduced and the cooling water level rises. The water intake 63 follows up and down together with the float 61. Because only disposed below a predetermined size is always the cooling water surface intake port 63, it is possible to always discharge a certain amount of overflow water w1 tank 69 between the low water level h ₂ of the high water level h _1.

In addition, when it reaches the high water level h ₁ or more limit water level, the cooling water w is not rise any more water overflows from the fixed overflow tube 68. Therefore, it is possible to prevent to become a water level exceeds the high water h _1, can be supplied to the pre-cooling water bath 80 without waste cooling water w1 has overflowed.

In this way, when the initial cooling water supply, never from the tank 69 issues a large amount of overflow water w1 at a time when the supply of poultry carcasses group as a low water level h ₂ refers overflow cooling water. Moreover, since the fixed amount of overflow water w1 is always discharged regardless of the cooling water level in the pre-cooling chiller tank 10a or the main cooling chiller tank 10b, the overflow water w1 can be used without waste.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 10 is a plan view of a chiller tank 10 used as a precooling chiller tank or a main cooling chiller tank in the present embodiment. In the figure, the upper diagram shows a state at the beginning of the first poultry carcass group (lot A), and the lower diagram shows an end state of the first poultry carcass group.

  In FIG. 10, the chiller tank 90 has the same configuration as the chiller tank 10 of the first embodiment except for the feeding portion of the poultry carcass c. An inlet unit 91 for the poultry carcass c is provided on the upper wall on the inlet side of the chiller tank 90, and a lid 92 for inspection in the water tank is provided from the inlet unit 91 toward the outlet side. And the discharge part 93 of a rotary conveyor system is provided in the exit part of the chiller tank 90, for example. The other structure of the water tank 90 is the same as that of the water tank 10, and the description of the same components is omitted.

  A long opening 94 corresponding to two pitches between screw blades is provided at the inlet of the chiller tank 90. The poultry carcass is suspended on a transportation line 95 by a hanging tool such as a shackle and transported to the folding end 96. Then, it is removed from the hanging tool, slides down the chute 97, and is introduced into the chiller tank 90 from the drop port 98 provided in the charge port unit 91. The conveyance line 95 in the vicinity of the chiller tank 10 is provided with a carcass sensor 101 having the same configuration as that of the first embodiment, and detects the presence or absence of a poultry carcass. The insertion port unit 91 is slidably mounted on the rail 99 laid in the longitudinal direction on the upper surface of the chiller tank 90. The charging end of the chute 97 is configured to move together with the charging port unit 91 following the movement of the charging port unit 91.

  The driving device 100 of the insertion port unit 91 is a combination of an air cylinder and a ratchet. That is, a ratchet is formed on the rail 99, and the input port unit 91 is configured to be able to move in small increments from the inlet side to the outlet side by an air cylinder from the inlet side to the outlet side for each pitch of the ratchet. . This movement is performed slowly within the time until the edible carcass c is switched to the next lot (the edible carcass group).

  In this configuration, when the lot A is started to be charged, the dropping port 98 of the charging port unit 91 is positioned at the inlet end farthest from the outlet side. Next, simultaneously with the start of the introduction of the lot A, the input port unit 91 is moved to the outlet side by the above-mentioned constant size feed, and the drop port 98 is dropped within the time until the lot A is switched to the second poultry carcass group lot B. Is moved to the position closest to the exit side.

  In addition, the moving speed of the insertion port unit 91 is set to be smaller than the feeding speed of the poultry carcass c by the screw blade. In this way, a slightly larger number of poultry carcasses than planned is put into the gaps between the screw blades, and the screw blades 91 are fixed at a constant moving speed. The number of carnivorous carcasses can be evenly distributed in the gaps.

  Therefore, a high burden is not locally generated between the screw blades, so that the water flow is not inhibited and a stable cooling effect is obtained. Here, if an operator carelessly drops the mouth 98 and moves it, the number of poultry carcasses thrown in between the screw blades varies, which places a heavy burden on the local area and obstructs the water flow. The cooling effect of the period cannot be obtained.

  If the transport speed of the poultry carcass on the transport line 95 is constant and the number of poultry carcasses dropped per unit time and dropping into the mouth 97 is constant, the poultry carcass put in between one pitch of the screw blades The number is proportional to the time it falls between the pitches. That is, the number N = Q (velocity of the conveyance line 95) × Δt (fall time) is established. For example, when the speed of the transport line 95 is 120 / min and the feed time of one pitch of the screw blades is 2 minutes, the number of carnivorous carcasses that fall between the pitches of the screw blades 98 is 120 × 2 minutes = 240 wings.

  When the drop opening 98 is moved to the exit side by 1/10 pitch while the screw blade advances by 1 pitch (2 minutes), the edible carcass between 1 pitch of the screw blade due to the relative speed ratio between the screw blade and the drop opening 98 The time for falling is extended by 2 minutes × 1/10 = 12 seconds. Therefore, the number of drops per pitch is 120 × 2.2 = 264 wings / 1 pitch. When the drop opening 98 is moved to the exit side by the driving device 100 in the manner of top feed, the drop opening 98 approaches the exit side by one pitch in 10 times (20 minutes).

  As a result, the number of poultry carcasses falling in one pitch will be increased by 24 from the planned number over 10 times. When a worker manually slides the input port unit 91 to the entrance side at the time of changing from the lot A to the lot B and moves the drop port 98 to the entrance end, an interval of 1 pitch is opened between the lot A and the lot B. become.

  In this manner, according to the chiller tank 90 of the present embodiment, the drop port 98 is moved at a constant speed over a period of time within a time period for switching to the lot B after the start of the introduction of the lot A, and the lot A is moved from the lot A. When switching to Lot B, an operator can drop it at a stroke and return the opening 98 to the inlet end, so that a gap of 1 pitch of screw blades can be surely opened between Lot A and Lot B. It can be done effectively.

  In addition, since the number of poultry carcasses is evenly distributed little by little between each pitch, the number of poultry carcasses is not concentrated locally. Therefore, the water flow is not inhibited and a stable cooling effect can be obtained. The interval between the lots is not limited to one pitch, and can be changed as appropriate by changing the moving speed of the drop opening 98.

  In the present embodiment, a rotary conveyor type discharge device 93 is provided at the outlet of the chiller tank 90, and the poultry carcass c is discharged from the chute 102 to the outside. In this embodiment, since a gap of one pitch of the screw blades can be reliably opened between the lot A and the lot B on the inlet side of the chiller tank 90, a rotary conveyor type discharge device 93 is installed at the outlet of the chiller tank 90. However, the lot A and the lot B are not mixed on the outlet side of the chiller tank 90. Therefore, the traceability management of each rod of the poultry carcass can be performed effectively.

  In the present embodiment, the chiller tank 90 is used for the pre-cooling chiller tank 10a and the main-cooling chiller tank 10b, and the pre-cooling chiller tank 10a is used to rapidly cool the poultry carcass, and the main cooling chiller tank 10b is used to level the poultry carcass. Perform warming and cooling. Therefore, as in the first embodiment, it is possible to obtain a poultry carcass having a high commercial value that is tight and does not generate drip.

  In the present embodiment, since the configuration of the chiller tank 90 is the same as that of the first embodiment, the automation of the CIP cleaning operation in the chiller tank 90 can be achieved, the cleaning or cleaning operation can be facilitated, and the steam is made external. Not dissipating, improving thermal efficiency and preventing condensation. In addition, the installation space can be reduced to achieve cost reduction.

  ADVANTAGE OF THE INVENTION According to this invention, the cooling process which is applied to the dismantling process process of a poultry carcass, can obtain a good quality and high commercial value and can enable traceability is realizable.

It is a vertical elevation view of the chiller tank concerning a 1st embodiment of the present invention. It is a top view of the chiller tank. It is a right view of the chiller tank. It is an expansion | deployment perspective view of the screw blade 31 for discharge | emission of the said chiller tank. It is a perspective view of the screw blade 20 for cooling of the said chiller tank. It is a front view sectional view of the overflow mechanism of the chiller tank. It is a top view sectional view of the overflow mechanism. It is side view sectional drawing of the said overflow mechanism. It is a whole block diagram of the cooling process which concerns on the said 1st Embodiment. It is a top view of the chiller tank concerning a 2nd embodiment of the present invention.

Explanation of symbols

10, 90 Chiller tank 10a Precooling chiller tank 10b Main cooling chiller tank 20 Cooling screw blade 21 Blade portion 28 Blade surface through hole 30 Outlet housing 30a Inclined surface 30b, 30c Both side surfaces 30d Outlet housing ceiling surface 31 Discharge screw blade 34 Casing 37 Cooling water circulation hole 42 Cooling water discharge port 51 Cooling water circulation pipe 52 Cooling water pump 53 Heat exchanger 54 Freezer 60 Cooling water surface forming box (cooling water surface forming space)
61 Float 62 Water intake pipe 63 Water intake port 64 Bellows pipe 65 Discharge pipe 74 Supply clean water supply pipe 75 Solenoid valve 78 Overflow pipe 80, 95 Transfer line 82 Washing tank 85 Controller 86, 101 Carcass sensor 91 Input port unit 98 Drop Mouth 99 Rail 100 Drive device c Food carcass h ₁ Cooling water surface high water level h ₂ Cooling water surface low water level s Supply clean water w Cooling water w 1 Overflow water

Claims (10)

In the cooling method of the edible carcass, the edible carcass that has been depilated and removed in the demolition processing step of the edible carcass is put into a chiller tank in which cooling water is stored and cooled while being conveyed in the chiller tank.
Preparing a pre-chilling chiller tank for pre-cooling the edible carcass with the body temperature remaining after hollowing out, and a main cooling chiller tank for cooling the pre-cooled edible carcass,
By circulating cooling water from refrigeration units installed separately in the precooling chiller tank and the main cooling chiller tank, the distribution of the cooling load of the precooling chiller tank to the poultry carcass is made larger than the cooling load of the main cooling chiller tank. ,
The poultry carcass is first put into a precooling chiller tank for rapid cooling treatment, and then put into a main cooling chiller tank for soaking and cooling treatment,
A cooling method for a poultry carcass characterized in that clean water for replenishment is supplied to the main cooling chiller tank, overflow water is taken out from the main cooling chiller tank and supplied to the precooling chiller tank.   2. The cooling method for a poultry carcass according to claim 1, wherein the cooling load distribution of the pre-chilling chiller tank and the main cooling chiller tank is set to 5.5 to 6.5 to 4.5 to 3.5.   By enabling sequential feeding of the poultry carcass from the time of feeding the poultry carcass at the inlet of the pre-chilling chiller tank and the main cooling chiller tank to the time of discharging at the outlet, The method for cooling a poultry carcass according to claim 1, wherein traceability is enabled.   A chiller tank for precooling or a chiller tank for main cooling is controlled by controlling the supply amount of clean water for replenishment based on carcass feeding advance notice information detected by a carcass sensor provided upstream of the precooling chiller tank in the direction of carrying the poultry carcass The method for cooling a poultry carcass according to claim 1, wherein the water level of the cooling water in the inside is adjusted. In the cooling device for edible carcass that cools while feeding the chilled chicken carcass that has been depilated and hollowed out in the dismantling process of the edible carcass into a chiller tank storing cooling water,
A pre-chilling chiller tank for pre-cooling the edible carcass with the body temperature remaining after the hollowing out, and a main cooling chiller tank for cooling the pre-chilled edible carcass,
Refrigeration units installed separately for supplying cooling water to the pre-cooling chiller tank and the main cooling chiller tank,
A supply part of clean water for replenishment provided in the main cooling chiller tank, and an overflow piping mechanism for taking out overflow water from the main cooling chiller tank and supplying it to the pre-cooling chiller tank,
Distribute the cooling load of the precooling chiller tank to be larger than the cooling load of the main cooling chiller tank, and first put the poultry carcass into the precooling chiller tank for rapid cooling treatment, and then put it into the main cooling chiller tank for temperature equalization. An apparatus for cooling a carnivorous carcass, characterized in that it is configured to perform a cooling process.   A pre-cleaning tank for pre-cleaning the poultry carcass is provided upstream of the pre-cooling chiller tank in the direction of conveying the poultry carcass, and the overflow water generated in the pre-cooling chiller tank is supplied to the pre-cleaning tank. The cooling device for a poultry carcass according to claim 5. The pre-cooling chiller tank or the main cooling chiller tank is
A cooling water surface forming space is connected to a cooling water channel formed inside the chiller tank body, a float is floated on the cooling water surface formed in the cooling water surface forming space, and the cooling water surface is raised or lowered together with the float. A structure in which a fixed amount of overflow water can be taken out regardless of the level of the cooling water surface by providing a water intake port that moves up and down and connecting the water intake port to a discharge port through a flexible pipe. 5. The apparatus for cooling a poultry carcass according to 5.   The food according to claim 5, wherein the feeding of the poultry carcass is made possible from the time of feeding the poultry carcass at the inlet of the pre-chilling chiller tank and the main cooling chiller tank to the time of discharging at the outlet. Bird carcass cooling device. The pre-cooling chiller tank or the main cooling chiller tank is
A chiller tank main body that is installed in a cooling water channel that forms a right cylindrical shape with a spiral screw blade, and rotates while rotating the screw blade around an axis to convey a poultry carcass,
An outlet housing connected to the downstream side in the transport direction of the straight cylindrical water channel and having a tapered cross-sectional shape toward the downstream side in the transport direction;
A casing that is connected to the downstream end of the cooling screw blade in the conveying direction inside the outlet housing, is disposed obliquely upward toward the downstream end of the conveying direction, and covers at least the lower half of the blade circumferential surface. A helical screw blade for discharging,
The apparatus for cooling a poultry carcass according to claim 8, wherein the poultry carcass conveyed to the downstream end of the cooling screw blade is carried out by the discharge screw blade. The pre-cooling chiller tank or the main cooling chiller tank is
A chiller tank main body that is installed in a cooling water channel that forms a spiral tube with a spiral screw blade, and that rotates the screw blade around its axis to cool while transporting a poultry carcass,
The inlet of the poultry carcass provided on the upper wall of the cooling water channel is slidable from the inlet side to the outlet side of the cooling water channel,
The first poultry bird is moved while moving the inlet port from the original position on the inlet side to the outlet side at a constant speed slower than the feed speed of the screw blades in the cooling channel by one or more times the pitch length of the screw blades. Put carcass group,
9. The apparatus for cooling a poultry carcass according to claim 8, wherein the input port is returned to the original position on the inlet side and the second poultry carcass group is input in the same operation.

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