JPH074158B2 - Defrosting method that you want to be suitable for processing - Google Patents

Description

Detailed Description of the Invention a. Object of the Invention (Industrial field of application) The present invention relates to a defrosting method suitable for processing, more specifically, a defrosting method in which the body is almost entirely thawed and the internal organs are almost entirely frozen. The internal organs are cut off, and the internal organs can be firmly and securely gripped to achieve mechanization of processing such as removal of internal organs, while preventing damage to internal organs during removal, effective use without waste, and processing load of processing wastewater. The present invention relates to a defrosting method that can significantly reduce the defrosting.

(Prior art) Conventionally, squid is thawed by putting a freezing block in a water-permeable container and immersing it in water at a temperature suitable for thawing in a thawing tank. It is pulled up and processed such as removing internal organs.

(Problems to be Solved by the Invention) As described above, when the frozen squid is thawed until the whole returns to the raw state, the internal organs are deformable and slippery, so that the internal organs are grasped with the strength to withstand the pulling force. Difficult,
For this reason, the mechanization of internal organs removal has not yet been achieved, and many internal organs that have been returned to their original state are damaged when they are grasped or when the joint between the internal organs and the body is cut. However, if these organs enter the wastewater, the pollution concentration becomes extremely high and the wastewater treatment requires a huge amount of money, because the internal organs that can be effectively used are wasted if they are collected because they flow out into the treated water. Further, in the case of thawing the internal organs, not only the thawing cost is high, but also the thawing time is long and uneconomical.

The present invention has been made to solve the above-mentioned conventional problems, and almost the entire body of the frozen stem is thawed.
The internal organs can be reliably grasped by performing processing such as removal of the internal organs while the entire internal organs are frozen, so that the mechanization of the processing is achieved, and the frozen internal organs can be grasped or joined at the joint with the body part. Since there is no damage when cutting, the utilization rate is improved by the complete recovery of the internal organs, and since there is no wastewater pollution due to internal organs, wastewater treatment is significantly facilitated, which greatly reduces the processing cost, and does not thaw the internal organs. In the case, it is an object to provide a thawing method which is economically efficient because thawing cost and time are saved.

B. Configuration of the Invention (Means for Solving the Problems) The thawing method which is suitable for the processing according to the present invention is as follows.
After the separation, the fluid is blown into the water to change the posture and thaw, and the whole body of the body is in a thawed state, and the internal organs contained in the body are thawed when the whole body is in a frozen state. The problem is solved by the method of aborting.

(Operation) The thawing method which is suitable for processing according to the present invention is a thawing method in which a required number of freezing blocks are stored in a water-permeable container and water whose temperature is adjusted to the optimum thawing temperature of 15 to 25 ° C is stored. When put in the tank, the frozen block is thawed by the water temperature and separated into individual pieces.Therefore, when pressurized air or pressured water is blown into the water by the blowing means, the frozen blocks are subjected to a stirring action by bubbles or water flow. The postures are changed in various ways, and the chances of contacting the exposed torso and legs with water are equalized as much as possible, so the torso and legs are evenly thawed and almost in a raw state. Return to.

However, since the internal organs contained in the body are almost frozen because they are isolated from water, if the thaw is stopped in this state and the container is removed from the water, the entire body will thaw, but the internal organs Since it is possible to obtain a squid in an almost frozen state, even if the body part and internal organs of this squid are grasped by the grasping means and the internal organs are removed by pulling out, the frozen internal organs are not deformed Since it exerts a suction force on the internal organs, it can securely grasp the internal organs and mechanically remove the internal organs, and since the internal organs in the frozen state are not damaged when grasping or cutting the joint with the body In addition, the internal organs can be completely recovered and used efficiently, and the internal organs are not mixed into the treated water to increase the contamination concentration.

(Example) Next, the apparatus used for the defrosting method suitable for processing according to the present invention will be described with reference to the drawings.

FIG. 1 shows a batch-type defrosting apparatus. In this apparatus, 1 is a defrosting tank, which is formed into a size such that a water-permeable container 2 such as a net or a perforated plate can be easily put in and taken out. Into the container 2 is stored a sufficient amount for thawing water having a proper thawing temperature of about 15 to 25 ° C.
Is moved in and out of the thawing tank 1 by the movable elevating means 4.

Reference numeral 5 is a means for blowing air into the water in the above-mentioned defrosting tank 1, and is arranged at the bottom of the defrosting tank 1 so as to blow out air evenly throughout the tank, and to this means 5, an air compressor, a high-pressure blower 6 Etc. to supply pressured air to blow air bubbles into the water to stir the individual squid separated from the block, and convert the body parts and legs that expose the posture so that they contact the water evenly. It is what makes me.

It should be noted that the same function as described above can be achieved by supplying pressurized water to the means 5 instead of the above-mentioned pressurized air so that the stirring action is performed by blowing up the water flow into the water.

Reference numeral 7 denotes a controller of the apparatus, which controls the loading / unloading of the container 2 and the start / stop of the blowing of air from the blowing means 5 using a known timer or the like.

The batch-type thawing device described above was used to store eight freezing blocks of squid with a unit weight of 8 kg in two rows in a container,
It was immersed in a thaw tank containing water at 20 ° C. and left for several minutes. Then, the frozen blocks were thawed and separated into individual pieces, so that the stirring action by the bubbles was added while the pressurized air was blown into the water from the fluid blowing means. Due to this stirring action, the posture is changed in various ways, and the exposed torso and legs contact the water almost evenly, so in about 30 minutes the torso and legs are almost thawed and in a raw state. Became.

However, since the internal organs contained in the body were almost frozen, the container was pulled out of the thaw tank and the thaw was stopped in this state. As a result, even if the entire body is thawed, almost all the internal organs are frozen, so that the internal organs can be reliably gripped and their mechanical removal can be achieved, and it is convenient to recover the internal organs without damage. I was able to get it.

FIG. 2 shows a continuous type defrosting apparatus. The defrosting tank 1 in this apparatus is formed into a long size so that the required transportation time can be obtained by the transportation means described later. In Fig. 1, a conveyor type conveying means 8 is suspended from the front side into the tank 1, goes backward in the tank 1, goes out from the rear side of the tank 1, and returns the lower side of the tank 1 to the front side. As shown in FIG. 3, a large number of partition frames 9 orthogonal to the axis of the transport means 8 are attached to the transport means 8 at predetermined intervals. Multiply by 10, this wire mesh belt 10
Grooves 11 are formed between the partition frames 9 by means of, and the container 2 constructed such that both sides of each of the grooves 11 are closed by the side plates 12 attached to the above-mentioned conveying means 8 as shown in FIG. A large number of squid freezing blocks 3 in front of the thawing tank 1 are supplied to a plurality of containers 2 arranged side by side in a shape as shown in FIG. The inside of the tank 1 is continuously conveyed to be thawed.

The side plate 11 is formed in an inverted trapezoidal shape as shown in FIG. 3 and is attached to the conveying means 8 so that a part thereof overlaps with each other. Even if the intervals of 9 are radially opened, the side plates 11 are kept overlapping to prevent a gap from falling out.

5 is a means for blowing air into the water in the above-mentioned defrosting tank 1, and is arranged at the bottom of the middle portion of the defrosting tank 1 so as to blow out the air into the whole of the tank 1 almost uniformly, and to this means 5, an air compressor By supplying pressurized air from the high-pressure blower 6 and blowing up air bubbles into the water, the individual squids separated from the block 3 are agitated, and the trunk and legs that expose their posture are almost even. The air is supplied so as to be brought into contact with water, and the air supplied to this means 5 has the same function even when it is converted to water, as in the above-mentioned embodiment.

When the transportation means of the above-mentioned continuous type thawing device is operated and four frozen blocks of squid with a unit weight of 8 kg are accommodated in a line in a container moving to the front side of the thawing tank, the frozen blocks are allowed to advance to the transportation means. Along with this, it is carried into the water at 20 ° C stored in the thawing tank, and within a few minutes after moving in the water, the blocks are thawed and separated into individual pieces. At this time, since the container has reached the top of the air blowing means, it is subjected to the stirring action by the air bubbles of the pressure air blown into the water if it is to be separated, and it is converted into its posture and exposed to the body or legs exposed. The whole body comes into contact with water on average, and the body and legs are almost thawed in about 30 minutes and become raw.

However, since the internal organs contained in the body are almost frozen, the container reached the rear part of the thawing tank at this point and was taken out of the thawing tank to stop thawing. As a result, even if the entire body is thawed, almost all the internal organs are frozen, so that the internal organs can be reliably gripped and their mechanical removal can be achieved, and it is convenient to recover the internal organs without damage. I was able to get it.

C. EFFECTS OF THE INVENTION According to the thawing method suitable for processing according to the present invention, the thawing of the body is almost entirely thawed but the internal organs are cut off in a substantially frozen state. The internal organs do not deform, and the frozen internal organs have the function of adsorbing the gripping tool, so it is possible to mechanically achieve internal organ removal by firmly and securely gripping the internal organs, which saves processing and improves efficiency. And the effect is remarkable.

Even when the internal organs in the frozen state are grasped by a grasping tool and the joint portion between the internal organs and the body is cut to remove the internal organs,
The internal organs are not damaged and are completely removed from the body,
Not only can you effectively use the internal organs without waste,
Wastewater pollution due to internal organs will be eliminated, and wastewater treatment will be achieved easily and at low cost.

When thawing only the body part and not the internal organs, the cost required for thawing is reduced and the time is also shortened, which is effective in reducing the processing cost and improving the processing efficiency.

Whether the internal organs are frozen or not, when the internal organs are removed manually, the same effect as described above can be obtained.

It can make a huge contribution to the processing industry.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of a batch-type apparatus for thawing method according to the present invention. FIG. 2 is a vertical cross-sectional side view of an apparatus for carrying out the thawing method in the same manner as above. FIG. 3 is a partial side view showing an example of constructing a squid container of the same apparatus by a wire mesh band. Fourth
The figure is a plan view of a part of the same container. FIG. 5 is a perspective view showing an example of forming a squid container with a wire net, a perforated plate and the like and attaching it to the conveying means. 1 ... Thawing tank 2 ... Container 3 ... Squid freezing block 5 ... Fluid blowing means 8 ... Conveying means

Claims (1)

[Claims] 1. A frozen block of squid is thawed by putting it in water at an appropriate temperature for thawing and separating it individually, and then blowing a fluid into the water to change the posture of the squid and thaw it, and the whole body is in a thawed state. The defrosting method is suitable for processing characterized in that the defrosting of the internal organs contained in the body is stopped when the entire body is frozen.