JP2567293B2 - Method and apparatus for producing aged egg - Google Patents

Description

TECHNICAL FIELD The present invention relates to a continuous production method of an aged egg and an apparatus therefor, and more specifically, for producing an aged egg, that is, a fully-aged egg and a semi-aged egg continuously. The method and apparatus for continuous egg heating and cooking.

(B) Conventional technology As is well known, an aged egg is placed horizontally in water and heated with hot water, or is held in an egg receiving hole while standing and is irradiated with far infrared rays and heated. To manufacture.

Among the aged eggs, for example, the fully-aged eggs and the semi-aged eggs have different heating temperatures and heating times for aging, so they are produced by adjusting the heating temperature and the heating time, respectively.

(C) Problems to be Solved by the Invention Boiled eggs are desired to have a good appearance with the yolk located in the center of the egg white when cut into slices, , In order to produce an aged egg with the yolk in the center because the yolk moves upward due to buoyancy, the egg yolk should be rotated appropriately during heating so that the position of the yolk in the egg is not biased. It is necessary to uniformly heat and solidify while making the position of (1) to be in the center.

It is possible to produce an aged egg by such a method, for example, when producing a small amount of an aged egg, but in order to mass-produce, many eggs are rotated together in boiling water. Is complicated and large in size, which is a problem.

Also, the production of boiled eggs is performed by heating and coagulating the eggs, but rapid heating of the eggs increases the rupture rate and reduces the yield of the boiled eggs, so it must be avoided, and each time the boiled eggs are produced, It must be heated again under the prescribed temperature control. Therefore, drain the heated water used once,
Fuel costs increase due to the pumping of water of a certain temperature, which increases the cost, and the handling of large-capacity containers containing heated water is always dangerous and a problem for workers. It was

In order to hold the egg in a standing state and irradiate it with far-infrared rays from above and below to heat it, a holder is required to hold the egg. Is not uniform, and the amount of far infrared rays received per volume differs between the body and both ends of the egg, depending on the shape of the egg, and the heating temperature also differs. Such non-uniform heating increases the egg breaking rate and is a problem. Further, since the blunt end and the sharp end are heated more strongly than the body, the softness of the egg white in the boiled egg is not uniform, which is a problem.

The present invention relates to a conventional method and apparatus for producing an aged egg, the position of the yolk and the softness of the egg white of the manufactured aged egg, the production yield of the aged egg, the danger of workers during the production of the aged egg, and the manufacturing cost. The purpose is to eliminate such problems at once.

(D) Means for Solving the Problems The present invention is a matured egg produced, in which the softness of the egg white is uniform, the yolk is located in the center of the matured egg, and a high yield of the matured egg is produced. It is an object of the present invention to provide a method and a device for producing an aged egg that can produce an aged egg at a relatively low cost without any risk of the process.

That is, the present invention is characterized in that heated water is poured into a standing egg so that the egg is allowed to flow down the surface of the egg, whereby the egg is heated and at least a part of the egg is solidified. In the method for producing an aged egg, the present invention also provides an egg holding member in which a plurality of egg holding holes having a diameter smaller than the maximum diameter of the egg are juxtaposed, and the egg holding member is provided above the egg holding member. Below the egg holding member, a heating water distribution tank in which through holes for distribution having a size smaller than that of the egg holding hole are formed at corresponding bottom portions above the holes, and a heating water introduction port is provided, The apparatus for producing aged eggs is characterized in that a heated water receiving tank having a heated water discharge port provided at the bottom thereof is provided in a housing whose periphery is formed by a heat insulating wall. .

In the present invention, the egg is heated in a standing state so that the yolk is located at the center in the aged egg. The eggs to be aged are heated uniformly under the same temperature, either by the heated water or the heated water flowing over the surface of the eggshell, or by further direct contact with the above generated from said heated water. It

Therefore, in the present invention, the heated water that is made to flow over the eggshell during heating of the egg is poured evenly over the eggs and flows evenly or evenly over the eggshell surface to heat the eggs. However, it may be poured in a band-like manner so that it flows randomly on the eggshell.

In the present invention, the heated egg is held upright in the egg holding hole of the egg holding member so that such heated water can smoothly flow down the surface of the egg shell. The egg-holding hole is shaped so that the contact area between the egg-shell surface and the wall surface of the egg-holding hole is as small as possible so that the heated water can also flow down to the egg-shell surface located in the holding area. It is formed. In this case, since the flowing heated water flows through the gap formed between the surface of the eggshell and the wall of the holding hole, it is preferable that the flowing heated water is not disturbed.

In the present invention, the egg holding hole formed in the egg holding member is provided with a plurality of protrusions protruding inside the hole for holding the egg. The convex portion supports the egg and at the same time forms a gap between the wall surface of the egg holding hole and the surface of the egg shell to secure a flow path for the heated water. It is desirable to design so that the flow of heated water flowing through does not stop.

In the present invention, the heated water is poured onto the eggs from the holes for supplying the heated water of the heated water distribution tank provided above the egg holding member. The heated water poured on the egg flows down through the gap formed between the egg shell and the wall surface of the hole, but can be made to flow down on the surface of the egg shell in any of the strip-like and film-like forms. When the heated water flows down in a strip shape, the egg shell portion that is not in contact with the heated water is heated by the steam generated from the poured heated water, so that the heated eggs do not have uneven heating.

In the present invention, in order to allow the heated water heated to a predetermined temperature to flow down onto the eggs, a hole for heating water distribution immediately above the egg holding holes, that is, a heating water distribution tank having a shower hole, has an egg holding hole. It is provided above the egg holding member.

In the aged egg production apparatus of the present invention, the heating water distribution tank, the egg holding member and the heating water receiving tank are provided in the housing so that the steam generated from the heating water can be used to heat the eggs.

In the present invention, it is preferable in terms of thermo-economics that the heated water that drops down along the eggshell is used in a circulating manner. In this case, the heated water enters the heating device, where it is heated to a predetermined temperature and sent again to the heated water distribution tank from the heated water inlet. Therefore, in the present invention, it is preferable that the temperature of the heated water heated by the heating device is constantly monitored by the sensor in order to reduce the egg rupture rate as much as possible.

Also in the present invention, as in the conventional method, since many of the eggs used are refrigerated, in order to avoid the egg breaking rate due to the temperature difference between the heated water and the eggs at the start of heating the eggs,
At the start of heating, low-temperature water kept at a relatively low temperature by the preheating device is poured from the shower hole of the heating water distribution tank onto the eggs held by the egg holding member. When the low-temperature water is flown for a certain period of time, the heating water heated by the heating device under the predetermined temperature control is poured from the shower hole of the heating water distribution tank onto the eggs held by the egg holding member.

Therefore, in the apparatus for producing an aged egg of the present invention,
It is preferable to provide a preheating device, a heating device including a heating control device, and a sensor.

(E) Action In the method for producing an aged egg according to the present invention, heated water is poured into a standing egg, and the egg is heated by flowing down the surface of the egg to cause the egg to heat up. As it matches the direction of gravity, the buoyancy of the yolk balances with the force generated in the lower karaza, and in the aged egg, the yolk is a samurai located in the center, heating without changing its position. To be done. Further, in the present invention, the heating water poured into the eggs is different in the flow of the heating water flowing over the egg shell depending on the flow rate, but when the heating water flows so as to wrap the eggs in a film, the eggs are Can be heated uniformly by the heated water, and when the poured heated water flows like a band, the eggs are uniformly heated by the heated water and the steam generated from the heated water.

In the present invention, the temperature of the heating water poured into the egg, regardless of whether the flow of the heating water is in the form of a film or a strip,
For example, since it is monitored by a temperature sensor, it is easy to adjust the temperature of the heated water to a predetermined heating temperature, while setting the temperature difference between the egg to be heated and the heated water to an appropriate range that does not break the egg, The eggs can be heated, and the eggs can be heated while avoiding breaking the eggs as much as possible. Therefore, according to the present invention, eggs without yolk can be produced at a high yield.

Further, the aged egg production apparatus of the present invention, in the housing,
A heating water distribution tank is provided above the egg holding member having an egg holding hole, and since the heating water supply pipe is provided in this distribution tank, the structure is simple, and it is not necessary to provide a particularly large-scale device, Therefore, it is possible to mass-produce eggs in which the yolk is not biased at a high yield at a relatively low cost.

(F) Example Next, an embodiment of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited by the following description and examples.

FIG. 1 is a partial side sectional view showing an outline of an aged egg production apparatus showing an embodiment of the present invention in a partial cross section, and FIG. 2 is a plan view showing an outline of a support hole portion of an egg. FIG. 3 is a schematic flow path diagram showing the circulation path of the heated water in the embodiment shown in FIG.

In this example, the aged egg production apparatus 1 is provided with a housing 2, and in the housing 2, a plurality of aged egg production areas are formed in multiple stages from top to bottom.

In this example, the first manufacturing region 3 is formed in the upper part of the housing 2, and the heating water supply tank 4 is provided above the manufacturing region 3. The heated water supply tank 4 is for heating eggs, and a plurality of heated water flow holes 5 for pouring heated water onto the eggs is formed in the bottom 6. The heating water supply tank 4 is provided with a heating water supply pipe 8 in which a plurality of heating water outlets 7 are formed extending upward, and an overflow weir 9 is provided at one end. The heated water overflowing from the weir 9 is discharged from the overflow discharge pipe 10 to a heated water receiving tank 11 located below.

In this example, an egg support shelf plate 12 is provided between the heated water supply tank 4 and the heated water receiving tank 11. Egg support shelf 12
Has a plurality of support holes 13 for supporting the eggs to be aged, and the center of each of the plurality of support holes 13 is located below the heated water flow hole 5 of the heated water supply tank bottom 6. It is provided.

As shown in FIG. 2, in this example, a projection 15 for supporting the egg 14 is formed inside the support hole 13 for supporting the egg, and the egg is supported by the projection 15, A gap 18 for flowing out heated water is formed between the egg shell surface 16 of the egg and the wall surface 17 of the support hole 13.

The heated water receiving tank 11 is provided below the egg supporting shelf plate 12,
It is provided over the entire area of the egg support shelf plate 12. The heated water receiving tank 11 is provided in each manufacturing area, and the heated drainage pipes 19 provided at the ends are respectively one step below the heated water receiving tank 11
The heated water used in each manufacturing area is discharged to the heated water receiving tank 1 below.

Since the present embodiment is configured as described above, when producing an aged egg, the egg 14 is placed in the support hole 13 of the egg support shelf 12 with, for example, a blunt end facing upward. Support holes 13 like this
When the eggs are placed in the above, the egg support shelf board 12 is placed in a shelf receiver (not shown) in the housing 2, and the door is closed to close the housing 2.

At first, since the temperature of the egg is low, for example, 20 to 50 ° C., preferably 20 to 30 ° C., for example, the relatively low temperature heating water in the preheating tank 23 (FIG. 3) is supplied from the heating water supply pipe 7. Supply into the tank 4. This low-temperature heated water is poured from the heated water downflow hole 5 of the heated water supply tank 1 to the blunt end of the egg 14 arranged in the support hole 13 of the egg support shelf plate 12. The low-temperature heating water poured on the blunt end of the egg 14 flows in a thin film around the eggshell to heat the egg. When the egg is heated to or near the temperature of the low-temperature heated water, the heating device 29 (Fig. 3) is activated to gradually raise the temperature of the water poured into the egg, and the egg heating temperature is increased. Is gradually raised to produce a fully-heated egg or a half-heated egg.

In the apparatus of this example, in addition to heating and aging the eggs while continuously raising the heating temperature, the temperature of the heating water for heating the eggs can be discontinuously raised to heat and age the eggs.

In this case, as in the case of heating the egg by continuously raising the heating temperature, initially, for example, the temperature of the egg is low, and therefore, for example, 20
The low-temperature heating water of a preheating tank of -50 ° C, preferably 20-30 ° C is supplied from the heating water supply pipe 7 into the heating water supply tank 4, and the egg water support hole 4 of the heating water supply tank 4 supports the egg. The egg is placed on the blunt end of the egg 14 arranged in the support hole 13 of the shelf 12, and the periphery of the egg shell is poured into a thin film to heat the egg shell.

When the sprinkling of the low-temperature heating water on the egg is continued for a predetermined time, the heating device 29 is operated to gradually raise the temperature of the low-temperature heating water sprinkling on the egg to gradually heat the egg.
When the temperature of the egg reaches, for example, about 50 ° C, for example, the flow path switching valve 21 (Fig. 3) is switched to the pump 32 (Fig. 3).
Is stopped to stop the supply of the low-temperature heating water to the heating water supply tank 4, and the pump 27 (FIG. 3) is operated to, for example, the heating tank 25 (FIG. 3). High-temperature heating water is supplied to the heating water supply tank 4. The temperature of this high-temperature heating water is, for example, about 90 ° C. in the case of fully-heated eggs, and about 65 ° C. in the case of soft-boiled eggs. In this case, the heating temperature of the egg is raised stepwise and the egg is rapidly heated under a relatively large temperature difference to produce a ripe or soft-boiled egg.

In this example, the eggs are heated by flowing the heated water in a thin film on the egg shell in any heating step. In this way, when the heated water is made to flow in a thin film on the egg shell, the heated water wraps around the entire surface of the egg and flows down, so that the heat transfer rate is increased and the egg can be heated uniformly. In addition, in the heating water supply tank 4 and in the sprinkling stage, the inside of the housing 2 is filled with steam that evaporates from the heating water,
The heated water flowing in a thin film is heated from outside by steam having the same temperature as the heated water, so that the eggs are heated uniformly at a constant temperature.

Therefore, in this example, while maintaining a relatively large temperature difference between the egg and the heating water while extremely lowering the egg rupture rate, efficient heating is performed, so that the time for producing an aged egg can be shortened. it can.

 FIG. 3 shows an outline of a circulation path of the heating water.

In the embodiment shown in FIG. 1, a heating / discharging pipe 20 is provided in the lowermost heated water receiving tank 11, and this heating / discharging pipe 20 is connected to a three-way flow switching valve 21. One flow path 22 of the three-way flow path switching valve 21 is connected to a preheating tank 23, and the other flow path 24 is connected to a heating tank 25. Outlet 26 of heating tank 25
Is connected to a pump 27 and to a heating device 29 via a check valve. On the other hand, the outlet 30 of the preheating tank 23 is connected to a pump 31, and is connected to a cooling device 33 having a cooling fan (not shown) via a check valve 32. The outlet 34 of the cooling device 33 is connected to the cooling device 33. It is connected to the heating device 29. In this example, the outlet 35 of the heating device 29 is a temperature measurement unit including a temperature sensor.
It is connected to the heated water supply pipe 8 via the opening valve 34 and the opening / closing valve 36.

Since the heated water circulation path of the present example is configured as described above, the three-way flow path switching valve 21 is
The high-temperature heating water once connected to the heating tank 25 and once used for heating is sent from the heating discharge pipe 20 to the heating tank 25 via the flow path 24 of the three-way flow switching valve 21. The high-temperature heated water sent to the heating tank 25 passes through a check valve 28 by the operation of the pump 27 and is supplied to the heating device 29.
And heated to a predetermined temperature. The high-temperature heated water heated to a predetermined temperature is sent to the heated water supply pipe 8 via the on-off valve 36 and used for heating and aging the egg.

On the other hand, when the egg is preheated, the three-way flow path switching valve 21
The low-temperature heated water once used for preheating is sent from the heating / discharging pipe 20 to the preheating tank 23 via the flow path 22 of the three-way flow switching valve 21. The low-temperature heating water sent to the preheating tank 23 passes through the check valve 32 by the operation of the pump 30 and then the cooling device 33.
To operate the cooling device to cool to a predetermined temperature,
After passing through the resting heating device 29, it is sent to the heating water supply pipe 8 through the on-off valve 36 and used for the preheating process of the preceding stage of the egg. Then, when preheating the egg, stop the operation of the cooling device 33,
On the other hand, the operation of the heating device 29 is started, and the low-temperature heating water in the preheating tank 23 is used for heating in the preheating step in the latter stage of the egg while being heated to a predetermined temperature.

As described above, according to the aged egg manufacturing apparatus of this example, the heating water is provided with the preheating tank 23 and the heating tank 25, and the preheating step and the heating step can be easily performed by switching the valve, and the temperature control can also be performed by the heating apparatus and. Since it is easy with a cooling device, it is easy to automate.

In addition, since the device of this example is a closed type, a sterilizing device such as an ultraviolet lamp can be installed in the housing, so that it can be heated and kept warm even after manufacturing, and it is always hygienic and warm aged. Eggs can be provided.

(G) Effect of the Invention In the method for producing an aged egg according to the present invention, heated water is poured into a standing egg, and the egg is heated by flowing down the surface of the egg to heat the egg. In comparison with the above, the heating temperature of the egg can be easily adjusted, and the egg can be uniformly heated without biasing the yolk. Therefore, the egg can be efficiently heated and the rupture rate can be reduced.

Further, according to the present invention, compared to the conventional method for producing an aged egg, it is possible to produce an aged egg in which the yolk is not biased at a high yield in a short time.

Furthermore, the aged egg production apparatus of the present invention has a structure in which a heated water pouring port is provided above an egg holding member having an egg holding hole in the housing, so that it is structurally simpler than a conventional apparatus. Therefore, since it is not necessary to provide a particularly large-scale device and the temperature of the heated water can be easily controlled, the time required for heating is shortened and the cost is relatively low.

Moreover, since the eggs are fixed and heated with heated water,
Compared with the conventional apparatus for producing aged eggs, the eggs do not come into contact with each other during heating and can be heated uniformly, and aged eggs with no yolk bias can be mass-produced at a high yield.

Further, in the present invention, since the heating of the eggs is performed by flowing heated water of a predetermined temperature over the eggshell, the adjustment of the heating conditions at the time of heating is controlled by the temperature sensor of the heated water flowing through the heating device. It is performed by controlling the flow rate of heated water, which can be easily performed by, for example, switch operation and valve operation. Due to the nature of operation, automation is easy. There is no need to handle hot water, eliminating the risk of manufacturing.

[Brief description of drawings]

FIG. 1 is a partial side sectional view showing an outline of an aged egg production apparatus showing an embodiment of the present invention in a partial cross section, and FIG. 2 is a plan view showing an outline of a support hole portion of an egg. FIG. 3 is a schematic flow path diagram showing the circulation path of the heated water in the embodiment shown in FIG. As for the reference numerals in the figure, 1 is an aged egg production apparatus, 2 is a housing, 3 is a production area, 4 is a heating water supply tank, 5 is a heating water downflow hole, 6 is a bottom portion of the heating water supply tank, and 7 is heating water. Supply port,
8 is a heating water supply pipe, 9 is an overflow weir, 10 is an overflow discharge pipe, 11 is a heating water receiving tank, 12 is an egg support shelf, 13 is an egg support hole, 14 is an egg, 15 is a protrusion, 16 is Eggshell surface, 17 wall surface of support hole, 18 gap, 21 three-way flow path switching valve, 22 and 24 flow path, 23 preheating tank, 25 preheating tank, 25 and heating pump, 27 and 31 pump, 28 and 32 non-return Reference numeral 29 is a heating device, 35 is a temperature measuring unit, and 36 is an opening / closing valve.

Claims (2)

(57) [Claims] 1. A heated egg is poured into a standing egg, and the egg is heated by flowing along the surface of the egg, thereby heating the egg,
A method for producing an aged egg, which comprises coagulating at least a part of the egg. 2. An egg holding member in which a plurality of egg holding holes each having a diameter smaller than the maximum diameter of an egg are juxtaposed, and a bottom portion provided above the egg holding member and corresponding to each above the egg holding hole. A through hole for distribution having a size smaller than that of the egg holding hole is formed at a location, a heating water distribution tank provided with a heating water introduction port, and a heating water draining tank provided below the egg holding member and at the bottom. An apparatus for producing an aged egg, characterized in that a heated water receiving tank provided with an outlet is provided in a housing whose periphery is formed by a heat insulating wall.