JPH085214A - Net conveyor type continuous-freezing equipment - Google Patents

Abstract

PURPOSE:To obtain freezing equipment wherein a frozen article of high quality being free from nonuniformity in freezing may be obtained. CONSTITUTION:In net conveyor type continuous-freezing equipment wherein a plurality of coolers 5 are provided above a net conveyor 3 moving horizontally through a heat insulated cooling chamber and cold air from these coolers is let out from a large number of slit-shaped outlets 10 against objects 13 to be frozen on the net conveyor so as to cool and freeze them, air-direction changing means 14 for turning back the cold air passing through a forward conveyor part of the net conveyor toward the lower side of the forward conveyor part forcibly are provided between the forward conveyor part 3a and a backward conveyor part 3b of the net conveyor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a net-conveyor-type continuous freezing device for freezing cold air from a cooler through a slit-like outlet on an object to be frozen on a net conveyor that moves horizontally in a cooling chamber.

[0002]

2. Description of the Related Art FIG. 11 shows a conventional example of this type of net conveyor type continuous freezing device. In this figure, the lower housing 1
The net conveyor 3 moves horizontally inside, and the frozen object 13 is transferred in the direction of arrow P by this net conveyor 3. Before and after in the upper housing 4, a cooler 5 including a blower 6 is arranged with the outlet sides facing each other.
Reference numeral 7 is a cold air blowing guide plate. A plurality of partition members 8 for partitioning the upper and lower housings 1 and 4 are provided on the lower side between the coolers 5, and these partition members 8 form a slit-shaped outlet 10.

In the continuous freezing device thus constructed,
The cool air blown from the cooler 5 by the blower 6 escapes from the numerous slit-shaped outlets 10 and is blown toward the frozen object 13 on the net conveyor 3, so that the frozen object 1
Rapidly freeze and freeze 3. After that, cold air is sucked in 11
Is sucked into the cooler 5 and circulates.

[0004]

By the way, in such a conventional continuous freezing device, a large number of slit-shaped outlets 1 are provided.
As is clear from the computer airflow simulation of FIG. 12, the cold air blown from the 0 to the frozen object 13 on the net conveyor 3 flows through the outward conveyor section 3a and flows in a large amount along the lower surface of the outward conveyor section 3a. , And then circulate to the cooler 5.

For this reason, there is a large difference in the time required for the completion of freezing between the upper surface and the lower surface of the object to be frozen, and uneven freezing occurs, and the time required for freezing is long, resulting in an increase in the size of the freezing device. It was happening.

The present invention has been proposed in order to solve the problems of the prior art, and effectively applies a large amount of cool air flowing along the lower surface of the outward conveyor section to the lower surface of the outward conveyor section. An object of the present invention is to provide a net conveyor type continuous freezing device capable of promoting the freezing effect by doing so.

[0007]

In order to achieve this object, the present invention provides a plurality of coolers above a net conveyor that moves horizontally in an insulated cooling chamber, and cools a large number of cool air from the coolers. In the net conveyor type continuous freezing device that blows and cools and freezes from the slit-shaped outlet toward the frozen object on the net conveyor, between the forward conveyor section and the backward conveyor section of the net conveyor, passing through the forward conveyor section. Further, there is provided a wind direction changing means for forcibly returning the cold air toward the lower surface of the outward conveyor section.

[0008]

According to the above-described structure, a large amount of cold air that has passed through the forward path conveyor section and has flowed horizontally along the lower surface of the forward path conveyor section is forcibly focused on the lower surface of the forward path conveyor section by the wind direction changing means. Since the direction is changed as described above, the heat transfer effect of cold air can be utilized to the maximum and the refrigerating effect can be promoted.

[0009]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows an embodiment of a net conveyor type continuous freezing device according to the present invention. In this figure, an endless net conveyor 3 horizontally laid between front and rear rollers 2 is driven in a lower housing 1 covered with a heat-insulating panel in a direction of an arrow P which is a transfer direction of a frozen material 13. It is arranged as follows. This net conveyor 3, which moves horizontally,
The transfer side of the frozen material 13 forms the outward conveyor section 3a, and the lower side forms the return conveyor section 3b.

Further, in the upper housing 4 which is covered with a heat insulating panel above the net conveyor 3, two coolers 5 and 5 are arranged in front and back with their outlets facing each other. Blowers 6 and 6 are provided on the front surface of 5, respectively. Arc-shaped cold air blowout guide ports 7, 7 for blowing cold air blown out from the blowers 6, 6 to the net conveyor 3 side are attached to the upper front portions of the blowers 6, 6.

A plurality of partition members 8 for partitioning the upper housing 4 and the lower housing 1 are attached to the lower side between the front and rear coolers 5 and 5, and a large number of slit-like blowouts are provided by these partition members 8. A mouth 10 is formed.

The cool air blown from the coolers 5 and 5 by the blowers 6 and 6 passes through the slit-shaped blowout port 10 and is blown toward the frozen object 13 on the net conveyor 3 to cool the frozen object 13. Frozen, front and rear suction port 1
It is circulated from Nos. 1 and 11 to the coolers 5 and 5.

A plurality of wind direction changing plates 14 constituting wind direction changing means are provided between the forward path conveyor section 3a and the return path conveyor section 3b of the net conveyor 3. These wind direction changing plates 14 stand up at an inclination angle of about 45 ° with respect to the flow of the cold air, and the cold air that has passed through the outward passage conveyor portion 3a hits the wind direction changing plate 14 and is changed in direction so that the outward passage conveyor portion 3a side. Folded back to.

As a result, the flow of the cool air, which has conventionally flowed in large amounts along the lower surface of the outward conveyor section 3a, is changed by the wind direction changing plate 14 so that it is focused on the lower surface of the outward conveyor section 3a. The heat transfer effect to the frozen object 13 can be maximized.

FIG. 2 shows the flow of cold air when the wind direction changing plate 14 is provided by computer air flow simulation. As is clear from this figure, the cold air blown from the numerous slit-shaped outlets 10 toward the frozen object 13 on the net conveyor 3 was inclined at about 45 ° after passing through the outward conveyor section 3a. The direction of the wind is changed by the wind direction changing plate 14, and the wind direction changing plate 14 is folded back so as to effectively hit the lower surface side of the outward conveyor section 3a.

FIG. 3 shows a net conveyor type continuous freezing device according to another embodiment. In this embodiment, the outward conveyor section 3a
The saw-tooth-shaped wind direction changing plate 15 that constitutes the wind direction changing means is provided between the return path conveyor unit 3b and the return path conveyor unit 3b. The valley portion of the saw-tooth-shaped wind direction changing plate 15 corresponds to a large number of slit-shaped outlets 10, and the slit-shaped outlets 1
The cold air blown from 0 passes through the outward conveyor section 3a, and the wind direction changing plate 15 causes the outward conveyor section 3a.
It is folded back so that it hits the lower surface side of.

FIGS. 4 and 5 show a net conveyor type continuous freezing device according to still another embodiment. In this embodiment, chambers 16 are provided on both sides of the center of the partition member 8 in the front-rear direction, and the chambers 16 descend to a distance between the outward conveyor section 3a and the backward conveyor section 3b. , A reflector 1 arranged at the bottom of the chamber 16
The sheet is folded back upward by 7 and passes through the slit-shaped outlets 19 between the lower partition members 18, and then the outward conveyor section 3a.
Sprayed on the underside of. Here, the chamber 16, the reflection plate 17, and the lower partition member 18 constitute the wind direction changing means.

FIG. 6 shows a net conveyor type continuous freezing device according to still another embodiment. In this embodiment, a plurality of wind turbines 20 whose shafts are raised with an appropriate inclination are provided between the outward conveyor section 3a and the backward conveyor section 3b. These wind turbines 20 constituting the wind direction changing means are provided with the outward conveyor section 3
The cool air blown from the wind turbine 20 is driven by the cool air passing through the a, and is blown toward the lower surface of the outward conveyor section 3a.

FIG. 7 shows a net conveyor type continuous freezing device according to still another embodiment. In this embodiment, a partition plate 21 with a slit is provided between the outward conveyor section 3a and the backward conveyor section 3b. A cut-and-raised piece 22 that is appropriately inclined with respect to the flow of the cold air is formed at a position corresponding to the slit-shaped outlet 10 at one end of the partition plate 21 with slits that constitutes the wind direction changing means. The partition plate 21 folds the cold air that has passed through the outward passage conveyor portion 3a toward the lower surface of the outward passage conveyor portion 3a.

FIG. 8 shows a net conveyor type continuous freezing device according to still another embodiment. In this embodiment, a partition plate 23 with a slit is provided between the outward conveyor section 3a and the backward conveyor section 3b. The partition plate 23 with slits, which constitutes the wind direction changing means, is arranged at a position corresponding to the slit-shaped outlet 10 and is appropriately inclined with respect to the flow of cold air, and has passed through the outward conveyor section 3a. The cold air is returned by the partition plate 23 so as to hit the lower surface of the outward conveyor section 3a.

FIG. 9 shows a net conveyor type continuous freezing device according to still another embodiment. In this embodiment, the partition plate 24 with slits constituting the wind direction changing means is horizontally provided between the outward conveyor section 3a and the backward conveyor section 3b, and the cold air passing through the outward conveyor section 3a is
This partition plate 24 is folded back so as to hit the lower surface of the outward conveyor section 3a.

FIG. 10 shows a net conveyor type continuous freezing device according to still another embodiment. In this embodiment, the double slit slit partition plate 25 constituting the wind direction changing means is provided between the forward path conveyor section 3a and the backward path conveyor section 3b.
The slits are horizontally provided so as not to overlap each other, and the cold air that has passed through the outward conveyor section 3a is folded back by the partition plate 25 so as to hit the lower surface of the outward conveyor section 3a.

[0023]

As described above, according to the present invention, the air flow direction changing means is provided between the outward conveyor section and the return conveyor section so that the cool air passing through the outward conveyor section is forced to the lower surface side of the outward conveyor section. Since it was designed to be folded back,
A large amount of cold air, which has conventionally flowed horizontally along the lower surface of the outward conveyor section, hits the lower surface of the outward conveyor section predominantly, and the freezing effect can be promoted.

As a result, it is possible to obtain a frozen product of high quality with no unevenness of freezing, and since the time required for freezing can be shortened, the freezing device can be made compact.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a net conveyor type continuous freezing device according to the present invention.

FIG. 2 is a diagram showing a flow of cold air in the continuous freezing device of FIG. 1 by computer air flow simulation.

FIG. 3 is a configuration diagram showing a net conveyor type continuous freezing device according to another embodiment.

FIG. 4 is a configuration diagram showing a net conveyor type continuous freezing device according to still another embodiment.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a configuration diagram showing a net conveyor type continuous freezing device according to still another embodiment.

FIG. 7 is a configuration diagram showing a net conveyor type continuous freezing device according to still another embodiment.

FIG. 8 is a configuration diagram showing a net conveyor type continuous freezing device according to still another embodiment.

FIG. 9 is a configuration diagram showing a net conveyor type continuous freezing device according to still another embodiment.

FIG. 10 is a configuration diagram showing a net conveyor type continuous freezing device according to still another embodiment.

FIG. 11 is a configuration diagram showing a conventional net conveyor type continuous freezing device.

FIG. 12 is a diagram showing the flow of cold air in a conventional continuous freezing device by computer airflow simulation.

[Explanation of symbols]

 1 Lower Housing 2 Roller 3 Net Conveyor 3a Outgoing Conveyor Part 3b Return Conveyor Part 4 Upper Housing 5 Cooler 6 Blower 7 Guide Port 8 Partition Member 10 Slit-like Outlet 11 Suction Port 12 Front Room 13 Frozen Objects 14, 15 Wind Direction Change Plate 16 Chamber 17 Reflector 18 Lower partition member 19 Slit-shaped outlet 20 Windmill 21 Partition plate with slit 22 Cut and raised piece 23, 24, 25 Partition plate with slit

Claims (1)

[Claims] 1. A plurality of coolers is provided above a net conveyor that moves horizontally in an insulated cooling chamber, and cool air from the coolers is directed from a number of slit-shaped outlets to a frozen object on the net conveyor. In a net conveyor type continuous freezing device that blows out and cools and freezes, the cold air that has passed through the forward conveyor section is forcibly folded back toward the lower surface of the forward conveyor section between the forward conveyor section and the return conveyor section of the net conveyor. A net-conveyor-type continuous freezing device, which is provided with a wind direction changing means.