JP6762625B2 - Container type quick freeze freezing storage work station plant - Google Patents

Description

The present invention relates to a liquid freezing facility that rapidly freezes foods such as agricultural products and marine products by immersing them in an antifreeze solution.

As a conventional example of the liquid freezing equipment as described above, the following Patent Document 1 describes a structure in which a conveyor for transporting food to be frozen is arranged in an antifreeze tank. Further, Patent Document 2 further describes that a means for removing the antifreeze liquid from the surface of the food after quick freezing is provided in the vicinity of such an antifreeze liquid tank.

Japanese Patent Application Laid-Open No. 61-041863 JP-A-2007-267688

However, since the freezing equipment having an antifreeze liquid tank in which the conveyor is arranged as in Patent Documents 1 and 2 is quite large-scale, there is no particular problem in installing it in a factory or the like, but once it is installed. Once it is done, it becomes difficult to transfer it to another place. On the other hand, it is an object of the present invention to provide a station plant that can be easily transferred to a desired place as needed.

In the container-type rapid freeze-freeze storage work station plant according to the present invention, a pretreatment work unit including a work table for pretreating the frozen matter and the pretreated frozen matter are placed in an antifreeze solution. A rapid liquid freezing unit equipped with a freezing tank that is immersed and rapidly frozen, and a blast type that freezes and stores the frozen object after removing the antifreeze liquid adhering to the surface by blowing cold air on the frozen object. It is characterized in that an antifreeze liquid blow-off freezing unit and a transfer means for suspending a basket containing an object to be frozen and transferring it in a space are provided in one work station container.

In the container-type quick freezing and freezing storage work station plant according to the present invention, the container can be easily transferred to a desired place such as a food production area by placing the container on a truck or the like.

(A) and (b) are internal structural views of a container-type quick freezing and freezing storage work station plant when viewed in a plan view and a side view. It is a basic block diagram of a rapid liquid freezing unit and a blast type antifreeze liquid blowing unit. It is a basic block diagram of a low temperature water tank. It is a chart which shows the basic concept of the cold transport chain realized in this invention.

1 (a) and 1 (b) are internal structural views of an example of the embodiment of the present invention when viewed in a plan view and a side view.
In the container-type quick freezing and freezing storage work station plant 1 of this example, for example, marine products such as shrimp, crab and fish, and agricultural products such as root vegetables and fruits are rapidly frozen by the quick liquid freezing unit 11 in a short time. The purpose is to make the work station to be moved movable. Therefore, as the work station container 10 for accommodating the rapid liquid freezing unit 11 and the like, it is assumed that a standard size that can be easily loaded and transferred on a trailer or the like, for example, a container having a total length of 40 feet (about 12 meters) is used. However, it is not limited to such a size. The container 10 may be a movable vehicle equipped with wheels.

As shown in FIGS. 1A and 1B, the internal space of the container 10 is divided into a main chamber 10a and a machine chamber 10b.
In the main room 10a, a quick liquid freezing unit 11 for rapidly freezing food and a blast type antifreeze blowing unit 12 for removing the antifreeze liquid by blowing it from the frozen food are installed as an accessory facility thereof. Further, as a pretreatment work unit, a normal temperature water tank 13, a low temperature water tank 14, a drying table 15, a work table 16 and the like are also installed to provide a work space for pretreating foodstuffs for freezing. Although the main room 10a is not specified in the figure, doors and the like for carrying in and out of food are provided at appropriate positions on the wall surface.
On the other hand, in the machine room 10b, an outdoor unit 17 for supplying a refrigerant to the rapid liquid freezing unit 11 is installed, and although not specified in the figure, an intake port for supplying air to the outdoor unit 17 from the outside and an outdoor unit An exhaust port for exhausting the hot air released by 17 to the outside is provided at an appropriate position on the wall surface.
Further, the container 10 has a double-floor structure for concealing and laying the conduit 18 for the refrigerant and the antifreeze liquid. Such a container may be a lightweight and easy-to-assemble dome house or the like, which is coated with expanded styrene, in addition to steel or aluminum alloy.
The room temperature water tank 13 is a water tank filled with room temperature water for washing food. The low temperature water tank 14 is, for example, a water tank filled with cold water for putting a living marine product into a suspended state. The drying table 15 is a table for drying washed foods and the like, and although not explicitly shown in the drawing, a dryer and the like are provided. A vacuum packing device may be installed on the drying table 15 to vacuum pack the food. The workbench 16 is a table for performing work such as packing food into the basket 20.

The rapid liquid freezing unit 11, the blast type antifreeze liquid blowing unit 12, the normal temperature water tank 13, the low temperature water tank 14, the drying table 15, and the work table 16 are provided so that a series of operations from food washing to freezing and frozen storage can be performed smoothly. It is laid out. Further, the rapid liquid freezing unit 11 and the blast type antifreeze liquid blowing unit 12 are configured to take in and out the food in units of baskets containing the food. In the upper part of the main chamber 10a, a transfer means for suspending a basket 20 containing foodstuffs and transferring the food in the space, that is, a crane 19, is arranged in consideration of workability. The crane 19 is based on a conventional technique, and includes an elevating portion 19a for raising and lowering a hook and a rail 19b for horizontally moving the elevating portion 19a. With this crane 19, the basket 20 is transported from the workbench 16 to the rapid liquid freezing unit 11 and lowered into the freezing tank 11a, and after freezing, it is pulled up from freezing and transported to the blast type antifreeze liquid blowing unit 12 easily and quickly.

FIG. 2 is a basic configuration diagram of a rapid liquid freezing unit and a blast type antifreeze liquid blowing unit.
The rapid liquid freezing unit 11 uses, for example, R-404A or R-410A as a refrigerant, and cools an antifreeze liquid such as methyl alcohol filled in the freezing tank 11a with a heat pump 21 to prepare a room temperature food to be a frozen food. By immersing it in the antifreeze liquid, it is rapidly cooled to an extremely low temperature range of -40 degrees Celsius or less and frozen. Naturally, the freezing tank 11a has a highly insulated structure. The heat pump 21 is configured by connecting an evaporator 11b provided in the freezing tank 11a and an aggregator provided in the outdoor unit 17 by a pipe line 18, and a compressor C or the like is interposed in the pipe line 18. It is installed.

The blast-type antifreeze blowing unit 12 adheres to the frozen food by blowing cold air (blast) of about minus 35 degrees Celsius generated by the cold air generating unit 12b provided in the drying / freezer 12a. After the antifreeze liquid is blown off and removed, the food is stored in a freezer 12a and kept frozen until it is transported.
As a result, the food can be kept in a frozen state until a cold storage vehicle for transporting the frozen food arrives. The drying / freezer 12a has a double door 12c. The cold air generation unit 12b is composed of a blower 12d that generates an air flow and a heat exchanger 12e that cools the air flow generated by the blower 12d by heat exchange with an antifreeze liquid. The heat exchanger 12e is coupled to the freezing tank 11a of the rapid liquid freezing unit 11 by a pipe line 18. A pump P or the like is interposed in the pipeline 18. As described above, since the blast type antifreeze liquid blowing unit 12 uses the antifreeze liquid for the rapid liquid freezing unit as the low temperature source of the cold air, it can be configured at low cost without the need for a separate heat pump or the like.
A pan 12f for collecting the antifreeze liquid blown off from the food is provided on the bottom surface of the drying / freezer 12a, and the collected antifreeze liquid is returned to the freezing tank 11a through the pipeline 18. A pump is provided in the pipeline 18. Further, the drying / freezer is provided with a basket support base 12 g that can slide back and forth, and by placing the basket 20 on the basket support base 12 g, loading and unloading can be easily performed.

FIG. 3 is a basic configuration diagram of a low temperature water tank.
The low-temperature water tank 14 is composed of a water tank 14a for storing water and a heat exchanger 14b for cooling the water. It is connected to the freezing tank 11a of the rapid liquid freezing unit 11 by a pipeline 18. A pump P or the like is interposed in the pipeline 18. As described above, since the low-temperature water tank 14 uses the antifreeze liquid for the rapid liquid freezing unit as the low-temperature source of the low-temperature water, it does not require a separate heat pump or the like and is low in cost.

FIG. 4 is a chart showing the basic concept of cold chain transportation of foods realized in the present invention.
Since the container type quick freezing and freezing storage work station plan 1 can be loaded on a trailer or the like and transferred, it can be placed close to the food production area. As a result, if the food is moved to the food production area at the required time, the freshly picked fresh food can be frozen and stored frozen on the spot, and the deterioration of the food due to the transportation time is remarkably improved.
Frozen food frozen and frozen in a container-type rapid freezing and freezing storage work station plant is transported to a large-scale freezer by a cold storage vehicle, etc., and then transported to a food store by a cold storage vehicle, etc. Storage costs and food loss are minimized.
As described above, in the present invention, the food product just produced in the food production area is frozen and frozen in the production area, so that the frozen food product in which deterioration is minimized can be delivered to the food store. In addition, the container-type freezing device can be operated at a high operating rate such as patrol transfer to multiple production areas.

1 Container type quick freeze freezing storage work station plant 10 Container 11 Quick liquid freezing unit 11a Freezing tank 12 Blast type antifreeze liquid blowing unit 12b Cold air generator 16 Work table 19 Transportation means 20 Basket

Claims (5)

A pretreatment work unit that includes a workbench for pretreating the object to be frozen,
A rapid liquid freezing unit equipped with a freezing tank for rapidly freezing the pretreated object to be frozen by immersing it in an antifreeze solution.
By blowing cold air onto the frozen products after freezing, after removing the antifreeze attached to the surface, and blast type antifreeze blown refrigeration unit to store frozen object frozen material,
A transfer means for suspending a basket containing an object to be frozen and transferring it in a space.
A container-type quick freeze-freeze storage work station plant characterized by being deployed in one work station container. The cold air generating part of the blast type antifreeze liquid freezing unit is connected to the freezing tank of the rapid liquid freezing unit by a pipeline, and the antifreeze liquid blown off from the object to be frozen and removed is collected in the freezing tank of the rapid liquid freezing unit. The container-type rapid freeze-freezing storage station plant according to claim 1, wherein the configuration is characterized by the above. The container-type quick freezing and freezing storage station plant according to claim 1 or 2, wherein the transfer means is configured to suspend a basket containing an object to be frozen and move it up and down. The container-type quick freezing and freezing storage station plant in which the work station container is loaded and transferred on a transportation means such as a trailer according to any one of claims 1 to 3. The container-type quick freezing and freezing storage station plant in which the work station container is a self-propelled vehicle provided with wheels in any one of claims 1 to 3.

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