JPH0430774A - Removal of impurity in fish roe and equipment therefor - Google Patents

Abstract

PURPOSE:To remove in high efficiency impurities such as the dead bodies of parasite from fish roe through such processes that a stock tank is charged with fish roe and water followed by agitation and the concentration of the roe is regulated by a concentration-regulating tank followed by further agitation with a cyclone, and separating impurities from the roe through specific gravity difference. CONSTITUTION:A stock tank 2 is charged with fish roe and water at the weight ratio of pref. 1:1 followed by agitation, and the weight ratio for them is regulated to 1:(10-50), using a concentration-regulating tank 4 followed by further agitation with a cyclone 4E and separating impurities from the roe, and the impurities are fed from a discharging port 4E2 to a foreign substance-treating tank 10, while the fish roe is fact from the discharging port to a final product storage tank 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present application relates to a method for removing impurities from fish eggs and an apparatus for the removal.

[Prior Art] Conventionally, this type of device is as follows.

Removal by hand sorting.

Selection and removal of sieves such as rotary sieves (Water cleaning method in rotary cylinder with mesh holes).

Stirring and cleaning by rotating the stirring blade in the water tank (exposed tank)
.

[Problems to be Solved by the Invention] The conventional techniques described above have the following problems.

Fish eggs (Shishamo eggs, Kazunoko, etc.) in the state of roe,
When using raw materials or products (for example, sushi toppings, molded kazunoko, etc.), it is necessary to remove contaminants such as dead bodies of parasites (such as Anisakis), small bones, scales, etc. as much as possible. In particular, the contamination of dead parasites significantly reduces the product value and is likely to be the subject of complaints.

In order to remove these parasites (such as Anisakis), we manually remove them by visual inspection, but the diameter is 1-1.
．． From eggs as small as 3m@φ to thinner parasites (
Not only does the work of separating and removing substances (such as Anisakis) require a lot of manpower, but it is also a very inefficient process due to poor sorting efficiency.

We tried cleaning and removing the parasites experimentally using a conventional rotary cylinder water cleaning system with mesh holes, but the product recovery rate and parasite removal efficiency were unsatisfactory (it could not be put to practical use).

The present application was made in view of the problems of the prior art, and its purpose is to provide a device that can do the following.

l　Labor saving (reduction in personnel).

2. Improved separation and removal efficiency (especially improved removal efficiency of dead parasites (Anisakis, etc.)).

3.Improvement of quality.

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows.

That is, the first invention is a method for removing impurities from fish eggs, which comprises the following first culm to third steps.

First step: Fish roe and water to be treated are stored in a raw material tank 2 configured to have a predetermined capacity, and stirred with a stirring blade.

2nd process Process in concentration adjustment tank 4.

Third step Treat with cyclone 4E. thing.

The apparatus for removing dried matter from fish roe according to the second invention is constructed as follows.

A stirring motor 2 is installed in the raw material tank 2 configured to have a predetermined capacity.
A pressure pump 3A is interposed in the middle of the pressure pipe 3, which is equipped with a stirring blade that rotates at A, and pumps the fish roe, which is the raw material, from the original tank 14 together with water. A supply adjustment valve 3B is provided.

An appropriate number of concentration adjustment tanks 4 connected to the tip of the pressure pipe include a tank portion 4A having a predetermined capacity and having an open top surface;
A stirring blade 4B rotating near the bottom of the tank section 4A, an overflow port 4C opened above one side wall, and a suction pipe 4D connected to the center of the bottom of the tank section 4A.
A pump 4DI and a water volume adjustment valve 4D2 are interposed in the middle of the suction pipe 4D, and a cyclone 4E is connected to the tip of the suction pipe 4D.
The discharge port 4El of the processed fish roe at the lower end of the cyclone 4E is configured to open to the finished product storage tank 5, while the overflow roller 4C
An over water recovery gutter 6 is connected via C2, and the over water recovery gutter 6 is connected to an over water treatment tank 7 via a switching gage 6A. A capacity tank part 7A, a strainer part 7B with an open upper surface that is removably attached along the front side wall, an overflow port 7C opened above the front side wall, and a strainer part 7B attached to the bottom of the overflow roller. It is composed of an overflow pipe 7D and a return pipe 7E connected to the bottom of the tank part 7A, and
A foreign matter collection gutter 8 is connected to a foreign material discharge port 4E2 provided above in the cyclone 4E, and this foreign material collection gage 8 is connected to a foreign material processing tank 9 via a switching pulp 8A.
The foreign matter treatment tank 9 includes a tank part 9A having a predetermined capacity and having an open top surface, a strainer part 9B having an open top surface and detachably attached to the front side wall, and a strainer part 9B having an open top surface. Overflow port 9 opened above
C, an overflow pipe 9D attached below the overflow port, and a return pipe 9E connected to the bottom of the tank portion 9A. A water supply pipe 10B having a constant water level valve 10A is connected above the replenishment tank 10, and a water supply pipe 10C connected near the bottom of the replenishment tank has a concentration of It is configured to open to the upper surface opening of the adjustment tank 4.

[Function] 1. The function of the raw material supply adjustment valve 3B of the pressure pump 3A is to adjust the rabbit supply amount in order to adjust the concentration of fish roe in the water in the concentration adjustment tank 4 in the second step.
Create conditions to optimize concentration.

2. The action of the water volume adjustment valve 4D2 in the middle of the suction pipe 4D creates conditions for optimizing the cyclone's dividing efficiency by adjusting the water volume at the inlet of the cyclone 4E.

3. The action of the pulp 4E11 provided at the treated fish roe discharge port 4El of the cyclone 4E creates conditions for optimizing the separation efficiency of the cyclone by adjusting the discharge amount of the cyclone 4E.

4 The action of the switching pulp 8A of foreign matter collection pipe 8 is as follows: When removing and cleaning foreign matter from the strainer during operation of the device,
This is to stop foreign matter from flowing into the strainer.

[Embodiments of the invention] Examples will be described with reference to the drawings.

The method for removing impurities from fish eggs as the first invention is as follows.

First step: Fish roe and water to be treated are stored in a raw material tank 2 configured to have a predetermined capacity, and stirred with a stirring blade.

In this case, the mixing ratio (weight) of fish eggs and water is approximately 1:1 to facilitate pumping.

Note that this mixing ratio is not critical as long as it can be pumped.

2nd process It is processed in the concentration adjustment tank 4.

In this step, the concentration of fish eggs in water is adjusted.

In other words, the mixing ratio (weight) of fish eggs and water is approximately 1:10~
By diluting to 1:50, the next third step is made more efficient, the egg recovery rate is increased, and optimal conditions are created to increase the separation efficiency.

Third step Treat with cyclone 4E.

In this third step, the centrifugal force and shearing force inside the cyclone separate fish eggs and impurities with different specific gravities in the water.

1 is a device for removing contaminants from fish eggs suitable for specifically realizing the first invention.

2 is a raw material tank configured to have a predetermined capacity, and a stirring motor 2
A stirring blade (path shown) rotating at A is provided.

The mixing ratio (weight) of fish eggs and water to be treated stored in this raw material tank is about 1:1.

Reference numeral 3 denotes a pressure-feeding pipe for pumping fish roe, which is a raw material, from a raw material tank together with water, and a pressure-feeding pump 3A is interposed in the middle, and a raw material supply adjustment valve 3B is provided at the tip.

4 is an appropriate number of concentration adjustment tanks connected to the tip of the pressure pipe (in the case shown, three tanks are arranged in parallel, but this F7 can be increased or decreased as appropriate due to design) ).

Therefore, this concentration adjustment tank 4 includes a tank part 4A having a predetermined capacity with an open top surface, a stirring blade 4B rotating near the bottom of this tank part 4A, and an overflow roller 4C opened above one side wall. It consists of a suction pipe 4D connected to the center of the bottom of the tank part 4A, a pump 4Dl and a water volume adjustment valve 4D2 interposed in the middle of this suction pipe 4D, and a cyclone 4E connected to the tip thereof. There is.

In this concentration adjustment tank 4, the concentration of fish eggs in water is adjusted.

In other words, the mixing ratio (weight) of fish eggs and water is approximately 1:10~
It will be diluted to 1.50 l.

Cyclone 4E is a known one.

In the figure, 4B1 is a stirring motor, and 4C1 is a net provided in a bow length on the overflow roller 4C.

In this way, the one-time adjustment tank 4 is configured such that the tank portion 4Δ and the cyclone 4E are paired.

Therefore, 4E1 is the cyclone 4 with valve 4E11.
111 outlet of the processed slaked eggs at the lower end in E, but in the triple configuration as shown in the figure, the IF outlet 4El of the cyclone 4E located on the far left is the 1 degree adjusted outlet located immediately next to it. The cyclone 4E is configured to open at the top surface of the tank 4, and after this state, the cyclone 4E is opened at the final position.
The Jl outlet 4EI is configured to open to the finished product storage tank 5.

On the other hand, the overflow port 4C is connected to an overwater recovery pipe 6 via a pipe 4C2, and the overwater recovery pipe 6 is connected to an overwater treatment tank 7 via a switching pipe 6A.

Therefore, this overwater treatment tank 7 includes a tank section 7A of a predetermined capacity with an open top surface, a strainer section 7B with an open top surface that is removably attached along the front side wall, and a strainer section 7B with an open top surface that is detachably attached to the front side wall. Overflow 0 opened above
7C, an overflow pipe 7D attached below the overflow port, and a return pipe 7E connected to the bottom of the tank section 7A.

A known water level detector (not shown) is attached to the tank 7 to detect the water level and automatically operate the pump 7E1 when the liquid level rises.

The strainer section 7B includes a strainer frame 7B1 configured in a rectangular tube shape with a lattice, a cloth bag 7B2 for filtration configured to be detachable from the strainer frame, and a cloth bag presser 7B3 that presses the cloth bag against the strainer frame. It is composed of a catch fitting 7B4 for supporting the strainer frame on the tank portion 7A.

Further, a foreign matter collection gutter 8 is connected to a foreign matter discharge port 4E2 provided above the cyclone 4E, and this foreign material collection gutter 8 is connected to a foreign matter processing tank 9 via a switching valve 8A.

Therefore, this foreign matter processing tank 9 includes a tank part 9A having a predetermined capacity with an open top, and a strainer part 9B with an open top that is removably attached along the front side wall.
It consists of an overflow port 9C opened above the front side wall, an overflow pipe 9D attached below the overflow port, and a return pipe 9E connected to the bottom of the tank section 9A.

A water level detector is attached to the tank 9, which detects the outer level when the liquid level rises and automatically operates the pump 9E1.

The strainer section 9B includes a strainer frame 9B1 configured in a rectangular tube shape with a lattice, a cloth bag 9B2 for filtration configured to be detachable from the strainer frame, and a cloth bag presser 983 that presses the cloth bag against the strainer frame. It is composed of a catch fitting 9B4 for supporting the strainer frame on the tank portion 9A.

The ends of the return pipe 7E and the return pipe 9E are connected to each other at a position above a separately provided replenishment tank 10 having a predetermined capacity.

A water supply pipe 10B having a constant water level valve 10A is connected above this replenishment tank, and a water supply pipe 10C connected near the bottom of this replenishment tank opens to the upper opening of the concentration adjustment tank 4. It is configured like this.

In the figure, l0CI is a pump and B is a valve.

Although not shown, a known operation panel is provided for manually or automatically operating each pump, agitator, etc.

[Effects of the Invention] Since the present invention is configured as described above, it produces the following effects.

1. With the introduction of this device, the 7 to 8 workers required for personnel reduction and elimination have been reduced.
One or two people may be required as operators of the device.

2. Improved removal efficiency Comparing the number of remaining insects, when removed by this device,
18 during hand sorting. As a result, efficiency has improved. By increasing the number of cyclone stages, it is possible to further increase the removal efficiency.

3 Improved quality The cleaning effect inside the cyclone removes dirt from the surface of the eggs, leaving them shiny and clean.

Not only impurities but also eggs with low specific gravity such as damaged eggs and immature eggs are separated and removed, making it possible to collect eggs with uniform particle size and powder quality, leading to improved quality.

[Brief explanation of drawings]

Figure 1 is a perspective view showing the overall configuration, Figure 2 is a partially cut-away perspective view of the cyclone and the one-time adjustment tank, Figure 3 is a partially cut-away perspective view of the cyclone, and Figure 4 is a partially cut-away perspective view of the cyclone. The figure is a schematic perspective view explaining the function of the above, FIG. 5 is a perspective view with a part of the processing tank cut away, and FIG. 6 is an exploded perspective view of the strainer section. Equipment for removing contaminants from fish eggs, raw material tank, pressure pipe, concentration adjustment tank, finished product storage tank, overwater recirculation funnel, overwater treatment tank, foreign matter recovery system, foreign matter treatment tank, supply tank. Figure 4 E2

Claims (1)

[Scope of Claims] 1. A method for removing impurities from fish eggs, which comprises the following first to third steps. First step: Fish eggs and water to be treated are stored in a raw material tank 2 configured to have a predetermined capacity, and stirred with a stirring blade. Processing in the second step concentration adjustment tank 4. Third step: Treat with cyclone 4E. 2. A stirring blade rotated by a stirring motor 2A is installed in the raw material tank 2 configured to have a predetermined capacity, and a stirring blade that is rotated by a stirring motor 2A is installed in the middle of the pressure pipe 3 that pumps the raw material, roe, from the raw material tank together with water. , a pressure pump 3A is interposed, and a material supply adjustment valve 3B is provided at the tip, and an appropriate number of concentration adjustment tanks 4 connected to the tip of the pressure pipe have a predetermined capacity with an open top. a tank part 4A, a stirring blade 4B rotating near the bottom of the tank part 4A, an overflow port 4C opened above one side wall, and a tank part 4A.
A suction pipe 4D connected to the center of the bottom of A, and a pump 4D1 and a water volume adjustment valve 4 in the middle of this suction pipe 4D.
A discharge port 4E for processed fish roe at the lower end of the cyclone 4E has a valve 4E11 and a cyclone 4E with a valve 4E11 interposed therebetween and a cyclone 4E connected to its tip.
1 is configured to open to the finished product storage tank 5, and on the other hand, the overflow port 4C is connected to an overwater recovery pipe 6 via a pipe 4C2, and the overflow port 6 is connected via a switching pipe 6A. The overwater treatment tank 7 is connected to an overwater treatment tank 7, which has a tank section 7A having a predetermined capacity and an open top, and an open top that is removably attached to the front side wall. It is composed of a strainer section 7B, an overflow port 7C opened above the front side wall, an overflow gutter 7D attached below the overflow port, and a return pipe 7E connected to the bottom of the tank section 7A. A foreign matter collection gutter 8 is connected to a foreign matter discharge port 4E2 provided above in 4E, and this foreign matter collection gutter 8 is connected to a foreign matter processing tank 9 via a switching valve 8A. , a tank portion 9A of a predetermined capacity with an open top surface, a strainer portion 9B with an open top surface that is removably attached along the front side wall, and an overflow port 9C opened above the front side wall; It is composed of an overflow groove 9D attached below the overflow port and a return pipe 9E connected to the bottom of the tank section 9A. A water supply pipe 10B having a constant water level valve 10A is connected above the tank 10, and a water supply pipe 10C connected near the bottom of the tank 10 is connected to the concentration adjustment tank 4. 1. A device for removing foreign matter from fish roe, the device being configured to open to an upper opening in a fish roe.