JPS59161664A - Continuous freezer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous freezing device having conveyors arranged one above the other.

Conventionally, this type of freezing device has been shown in FIG. 1-I. In the figure, the steel belt (1) is a single piece of stainless steel belt with a smooth surface, and the drive pulley (3) directly connected to the variable speed motor is connected to the product outlet (11).
) K available, allowing you to freely adjust the freezing time. There is a tension pulley (2) at the product supply port (Cl0) K, which applies a constant tensile force to the steel belt (1).

Below the steel belt (1), there is a grain tank (4
) are in contact with each other, and the products to be frozen (5) are arranged on the top surface of the steel belt (1). Furthermore, a cooling fin coil (6) and a fan (7), which are air gelatinous devices, are arranged above the cooling fin coil (6) and fan (7), forming an air circulation path. :)
The grain tank (4) is housed in an insulated tunnel (9) to prevent heat from entering from the outside.
) to 7? It is supplied from the supply line inlet (14), returns and circulates from the cold grain outlet (15).

Further, the cooling fin coil (6) is supplied with refrigerant from the refrigerator installed outside through the refrigerant inlet (16) and returns through the refrigerant outlet (17).The following operation will be described. Freezer product supply port (1
When the product to be frozen (5) enters the freezing zone 0), it enters the freezing zone together with the steel belt (1) moving at a constant speed. Items to be frozen within that zone (5) are stored in the prine tank (4).
Steel belt (1) cooled by prine liquid inside
Contact freezing is carried out via On the other hand, for the upper surface of the frozen object (5), there is a cooling fin coil (6) that receives refrigerant from a cooling mixer prepared separately outside, and a fan (7).
This circulates and cools the air inside the 1-item tunnel (9), and freezes it by air gel blasting through the wind-resistant duct (8).

In this way, the product to be frozen (5), which was exposed to the freezing light, exits the insulation tunnel (9) and is transported to the next process.

Conventional freezing equipment is configured as described above, so the bottom surface of the frozen product is quickly frozen due to contact freezing, but since the top surface can be blown with cooling air, the frozen product will not only dry out, but also 1 Cooling speed is slow and slow freezing occurs,
It tends to lead to a decline in product quality, and since the water system uses two methods, pline cooling and airplast cooling, two refrigerators are required, which increases the initial cost and the running cost. Ta.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above.Instead of the airplast method, a conveyor was introduced to enable continuous contact freezing of the products to be frozen. The aim is to create a compact and energy-saving freezing lath.

An embodiment of the present invention will be described below with reference to the drawings.

In Fig. 2, a flexible sheet conveyor (21 pieces) is arranged above the steel belt conveyor (1).

FIG. 2 shows the overall space of the apparatus in which the flexible sheet conveyor (21) is arranged.

Funkingel Sheet (22)i is formed by laminating a thin rubber film with excellent tensile strength, tensile strength, elasticity, flexibility, and airtightness at low temperatures and a base fabric as a reinforcing material. , thermal conductivity is inferior to metals, or can be adequately addressed by reducing the thickness. The flexible sheet (22) is stored in the attachment of the 14 conveyor chain (23), the conveyor chain (23), and the tin rocket (2).
4) together constitute a flexible sheet conveyor (21).

The lower part of the flexible sheet conveyor (21) is filled with a cold prine (26), which can maintain the required minimum liquid level of one flame. Cold prine (13) and (
25) is a prine refrigerator installed outside (not shown)
The raw material is cooled at 100 m and is supplied from the cold grain inlet (26) to the grain tank (4) and the flexible sheet conveyor (21), and then circulated through the cold grain outlet (28) to the prine refrigerator for +11) m. The rotation of the 1F movement motor (28) of the steel belt conveyor is transmitted to the shaft of the drive pulley (3) of the steel belt (1) by the transmission chain (29). .

Although FIG. 2 shows a case in which only the refrigeration zone is surrounded by a heat insulating tunnel (9), it is naturally possible to construct the entire apparatus at 1σ f.

Next, the operation will be explained. Freezer product supply port (
When the frozen products (5) are placed in 10), the steel belt conveyor (1) and the Tofu I/Gishiguru sheet conveyor (21)
It enters the freezing zone (12) while being sandwiched between. In the freezing zone (12), the product to be frozen (5) l-1:' is cooled by a steel belt (1), and its upper surface is in contact with a flexible sheet (22) cooled by a cold prine (26). Because of this, heat conduction occurs quickly. Even if the shape and dimensions of the product to be frozen change, the flexible sheet (22) in contact with the product will deform along the shape as shown in Figure 3, so the heat will always remain in contact with the product to be frozen. Maintaining the good appearance of transmission. In this way, the product to be frozen (5) (41) can be quickly frozen.Especially in the case of meat, the ability to quickly freeze the surface can maintain the freshness and improve the quality during the meat tracing process. can be achieved.

The flexible sheet conveyor (21) rotates due to the frictional force generated by the weight of the cold pline (25) in the flexible sheet (22) with the steel belt (1) or the frozen product (5), resulting in a body r+d3 force. As resistance, tin rocket (24) bearing part and conveyor chain (23)
(22)
) does not require a dog-like force; 1. There is no fear of tearing.

When the frozen product passes through the freezing zone (12) and reaches the product collection section (11) VC, the belt (1) rotates with the pulley part (3), so the product naturally flows from Peru (1). Leave and move on to the next process.

In the above embodiment, a conveyor chain with an attachment (23) is used to drive the flexible sheet, and the sheet is attached to the attachment. However, a conveyor belt integrated with the sheet may be used instead, and the same effect can be achieved. . In the second embodiment, the case of continuous rapid preservation of meat was explained, but as an application, freezing of prepared frozen foods such as fish and vegetables (/4) has the same effect.

According to the present invention, as described in 2): (e) Since the cooling of both sides of the frozen product is configured by the contact freezing method, it is possible to rapidly freeze the surface of the frozen product, and (ifj) the freshness of the frozen product can be reduced; Furthermore, the apparatus becomes more compact, the amount of heat entering from the outside is reduced, and insulation becomes easier, so that the freezing apparatus 12t can be made at a lower cost.

[Brief explanation of drawings]

Fig. 1 is a cross-section TFU side view showing a conventional freezing device, and Fig. 2 is a 11i side view showing a freezing device according to an embodiment of this origin J.
Till feed diagram, Figure 3 is 1 on line A-A in Figure 2.
A cross-sectional view of the prayer is shown in the direction of the arrow. In the figure, (1) is a bell that constitutes one conveyor)
, (5) is the product to be frozen, and (21) id is the other conveyor. In addition, in the figures, the same reference numerals indicate (the same or A target).

Claims (1)

[Claims] A continuous method characterized in that a continuously cooled belt conveyor is provided on both the upper and lower sides of the product to be frozen so as to enable contact freezing, and one of the two conveyors is driven by the other conveyor by friction. Freezing equipment.