JPH07303463A - Method for removing foreign matter of raw laver and device therefor - Google Patents

Abstract

PURPOSE:To provide a method for separating and removing a solid foreign matter from collected raw laver. CONSTITUTION:A mixed solution of raw laver and water is pressurized and passed through prescribed narrow gaps to provide a method for removing a foreign matter of raw laver, capable of separating a raw laver from the solid foreign matter. A separating column having narrow gaps for passing raw laver at given intervals on a side wall is rotatably installed on a bottomed outer tank, an inner wall cleaning means for the separating column is set inside the separating column and a means for supplying the mixed solution of raw laver and water to the separating column is laid to provide the objective device for removing a foreign matter of raw laver.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is
The present invention relates to a method and apparatus for removing foreign matter from raw seaweed for the purpose of separating and removing solid foreign matter.

[0002]

2. Description of the Related Art Conventionally, in order to separate atypical foreign matter from raw seaweed, a foreign matter detection sensor is installed in the passage of the mixed solution of raw seaweed and water before mincing, and the output of the detection sensor detects the mixed solution. A device for removing contaminants in raw seaweed has been proposed, in which the flow path is changed (1992 Patent Publication No. 3).
65463).

[0003]

According to the conventional proposal, a normal raw seaweed processing line is separated into a foreign matter-containing liquid and a foreign matter-free liquid, and the foreign matter-containing liquid is appropriately treated (for example, visually removed). I am going to return it to.

However, if the sensitivity of the detection sensor is increased, the amount of the liquid mixed with the foreign matter increases drastically and the processing thereof requires a great deal of time and labor, and if the sensitivity of the detection sensor is lowered, the removal of the foreign matter becomes insufficient. The removal rate was low and there was a problem of winning.

[0005]

Therefore, according to the present invention, the size (thickness) of raw seaweed and foreign matter (crustacea or residues thereof, shells, small pieces of synthetic resin products, foreign matter such as films, etc.)
Using this difference, we succeeded in separating solid foreign matter with high efficiency by pushing out a mixture of raw seaweed and water (seawater) from the slit. Moreover, diatoms adhering to the raw seaweed were also exfoliated by pushing the raw seaweed through the slits, and a secondary effect was found that facilitates the washing treatment after cleaning.

That is, the invention of the method is a method for removing foreign matter from raw seaweed characterized by separating raw seaweed and solid foreign matter by pressurizing a mixed solution of raw seaweed and water and passing through a predetermined slit. By applying centrifugal force to the mixed liquid of raw seaweed and water before mincing, and passing through a predetermined slit,
A method for removing foreign matter from raw seaweed characterized by separating raw seaweed and solid foreign matter. Next, the invention of the apparatus is to rotatably install a separation cylinder having a slit for passing raw seaweed on the side wall in the outer tank with a bottom at a predetermined interval, and to install an inner wall cleaning means of the separation cylinder inside the separation cylinder. A foreign matter removing device for raw seaweed, characterized in that it is installed and a means for supplying a mixture of raw seaweed and water is provided in the separation cylinder. In another invention, the side wall of the separation cylinder is formed by spirally winding a flexible wire, and the gap between adjacent flexible wires can be adjusted. The inner wall cleaning means of the separation cylinder is an inner cylinder to the inside of the separation cylinder. Is rotatably installed, and a spiral brush is installed on the outer wall of the inner cylinder. However, as the material of the spiral brush, a conventionally used fiber brush or a elastic thin plate such as rubber can be used.

The raw laver in the above is preferably before mincing. This is because the mincing process makes the foreign matter finer and the separation becomes insufficient, or the foreign matter is stuck in the mesophyll of the raw seaweed and becomes difficult to separate. However, if the growth of fresh seaweed is fast, it is possible to improve the separation efficiency by roughly cutting after sampling and roughly equalizing the conditions.

Conventionally, there is a possibility that the minced blade is damaged due to the inclusion of metal pieces, but in the case of the present invention,
If the separation treatment before mincing is performed, the metal pieces and the like are surely removed, so that the above-mentioned problems are eliminated.

According to the present invention, since the solid foreign matter can be separated by nearly 100%, the quality of seaweed can be remarkably improved.

In the above-mentioned separation cylinder having a spiral side wall, since the slits between the adjacent wire rods can be adjusted, the best slits can be obtained in accordance with the state of raw seaweed, and the separation efficiency can be further improved.

The elastic wire may be a wire made of spring metal or a synthetic resin wire.

[0012]

According to the present invention, since the mixed liquid of raw seaweed and water (seawater) is pressurized and passed through the slit, almost all solid foreign matter can be removed.

Further, by adjusting the slits, it becomes possible to use the seaweed according to the state of the raw seaweed, and the separation efficiency can be improved.

[0014]

Embodiment 1 An embodiment of the present invention will be described with reference to FIGS.

A separating cylinder 4 having a bottom plate 3 is loosely fitted in an outer tub 2 having a bottom plate 1, and an inner cylinder 6 connected to a rotary shaft 5 is loosely fitted inside the separating cylinder 4. On the outer wall of the inner cylinder 6, a spiral brush 7 reaching the inner wall of the separating cylinder 4 is planted. The separating cylinder 6 is formed by spirally winding a flexible metal wire rod 8 and providing a fine gap 9 between the adjacent wire rods 8.
The attachment rods 11, 11 of the gap adjusting pieces 10, 10 are installed at three locations on the outer circumference of the separation cylinder 6. The mounting rod 11 has a mounting piece 12 and a spacer 15 at both ends, which are fixed by screws 14 and the spacer 15 is changed (arrow 13 in FIG. 3).
Move 0 (the tip is thinner) to adjust.

The metal wire 8 is spirally formed into a cylindrical shape to form the separation cylinder 4, and holding cylinders 16 are provided at both upper and lower ends thereof.
And the bottom plate 3 are screwed together to fix both ends, and a mounting ring 18 is connected to the outer peripheral lower end of the holding cylinder 16 at the upper end. The inner edge of the flange ring 19 is fixed to the bottom plate 3 at the lower end, and the upper and lower ends of the mounting shafts 20 and 20 are attached to the nuts 21 and 2 at three positions between the mounting ring 18 and the flange ring 19.
It is fixed through 2. Therefore, these nuts 21, 22
The total length of the separation cylinder 4 can be adjusted by tightening. For example, loosen the nuts 21 and 22 to adjust the adjustment piece 10.
Can be moved and the nuts 21 and 22 can be tightened to fix the wire rod gaps.

If the pulley 23 is fixed to the lower end of the rotary shaft 5, the pulley 25 is fixed to the lower end of the pipe shaft 17 inserted into the rotary shaft 5, and the bottom plate 3 is fixed to the upper end of the pipe shaft 17, the separation cylinder 4 And the inner cylinder 6 can be rotated separately. Separation tube 4
Is to give a centrifugal force to the mixed solution, for example, 500 rpm
Although the inner cylinder 6 rotates a little faster (or slower) than the separation cylinder while rotating at ˜1000 rpm, the separated solid matter may be raised as shown by the arrow 26. For example, if the difference is 2 to 10 times per minute, the purpose can be sufficiently achieved. In the figure, 24 is a liquid supply pipe, 27 is a water supply pipe, 28 is a solid material discharge port, 29 is a solid material discharge blade,
Reference numeral 30 is a cover, 31 is a cover fixture, and 32 is a machine body.

In the above-mentioned embodiment, when the mixed liquid whose concentration is adjusted is fed by the pump as indicated by the arrow 33 (when the concentration is high, water is added as indicated by the arrow 34), the mixed liquid is accumulated in the separation cylinder 4. On the other hand, when the pulleys 23 and 25 are rotated by the pulley of a motor (not shown), the separation cylinder 4 and the inner cylinder 6 rotate via the rotary shaft 5 and the pipe shaft 17. When the separation cylinder 4 rotates, the mixed liquid in the separation cylinder 4 receives a centrifugal force, and the raw seaweed is discharged into the outer tank 2 through the gap 9 between the metal wire rods 8 on the side wall thereof, as shown by the arrow 37. On the other hand, the solid matter 38 remains on the inner wall side of the separation cylinder 4, but the spiral brush 7 sequentially indicates the solid matter 38.
When it reaches the uppermost end, it is pushed by the blades 29, reaches the discharge port 28, and is discharged as indicated by the arrow 39. Since the spiral brush 7 prevents clogging of the inner wall of the separation cylinder 4 and raises the solid matter, there is no risk of the separated solid matter depositing in the middle portion or settling on the bottom side. The rising speed of the separated solid matter can be adjusted by the difference in the number of rotations of the rotating shaft 5 and the inner cylinder 6.

The raw seaweed treated as described above is sent from the discharge port 40 at the bottom of the outer tank 2 to the next step as indicated by the arrow 41.

The above embodiment will be described with reference to the block diagram of FIG. 4. The collected algae are put in the storage tank 42, taken out from the storage tank 42 as necessary and put in the adjusting tank 43. In this adjusting tank 43, the concentration of the mixed liquid of raw seaweed and water (seawater) sent from the storage tank 42 is checked to add an appropriate amount of water from the water tank 47, and then an appropriate concentration is obtained. Supply to. The raw seaweed thus separated is sent to a processing machine 45 (for example, a mincing device) in the next step, and the separated solid matter is sent to a waste tank 46.

When the adjusting tank 43 is not provided in the above, water is supplied from the water tank 47 to adjust the concentration before entering the separator 44.

In the above, after loosening the nut at one end of the mounting shaft 20, the gap adjusting piece 10 is moved forward (toward the center of the separating cylinder) or retracted to a predetermined line gap, and then the nut is tightened. For example, the metal wire gap can be adjusted. In this way, by setting the line gap according to the state of the raw seaweed, the efficiency of foreign matter separation can be improved.

In the above-described embodiment, the gap adjusting pieces are provided in the respective gaps of the metal wire rod, but the gap adjusting pieces may be discontinuously provided every other stage or every other stage.

[0024]

[Example 2] Example 1 describes a separation tube in which the passage gap of fresh seaweed can be adjusted.
As shown in (b), a vertically long fine gap 48 or a horizontally long fine gap 4
It is also possible to manufacture the separation cylinder 50 by providing 9.

In such a case, by preparing a plurality of separating cylinders, it is possible to use them according to the state of raw seaweed. The method of use in this case is the same as in Example 1 except for the gap adjustment, and the description thereof is omitted.

[0026]

EFFECTS OF THE INVENTION According to the present invention, the mixture of raw seaweed and water is pressurized to pass through the narrow gap, so that the raw seaweed that can pass through the fine gap and the solid matter that cannot pass through can be efficiently separated. There is.

According to the apparatus of the present invention, however, the separated solid matter can be automatically removed, so that there is an effect that the improvement of the quality due to the elimination of foreign matter can be achieved without requiring human power.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a device for carrying out the present invention.

FIG. 2 is a plan view in which the cover is also removed.

FIG. 3 is a partially enlarged sectional view of the separation cylinder.

FIG. 4 is a block diagram of the same.

FIG. 5 (a) is a partially developed view of the separation cylinder wall of another embodiment. (B) Similarly, it is a partially developed view of the separation cylinder type of another embodiment.

[Explanation of symbols] 1, 3 Bottom plate 2 Outer tank 4 Separation cylinder 5 Rotating shaft 6 Inner cylinder 7 Spiral brush 8 Metal wire rod 9 Gap 10 Gap adjusting piece 11 Mounting rod 12 Mounting piece 13, 26 Arrow 14 Screw 15 Spacer 16 Holding Cylinder 17 Pipe shaft 18 Mounting ring 19 Flange ring 20 Mounting shaft 21, 22 Nut 23, 25 Pulley 24 Liquid feed pipe 27 Water feed port 28 Discharge port 29 Discharge vane 30 Cover 31 Cover fixture 32 Machine body 40 Discharge port 42 Storage tank 43 Adjustment Tank 44 Separator 45 Processing machine 46 Waste tank 47 Water tank

Claims (6)

[Claims] 1. A method for removing foreign matter from raw seaweed characterized by separating raw seaweed and solid foreign matter by pressurizing a mixed solution of raw seaweed and water and passing through a predetermined slit. 2. A centrifugal force is applied to a mixed liquid of raw seaweed and water before mincing to allow it to pass through a predetermined slit,
A method for removing foreign matter from raw nori characterized by separating raw nori from solid foreign matter. 3. A separation cylinder is rotatably installed in the bottomed outer tank with a predetermined gap in the side wall and a slit for passing raw seaweed.
An apparatus for removing foreign matter from raw seaweed, characterized in that an inner wall cleaning means of the separation sleeve is installed inside the separation sleeve, and a mixed liquid supply means of the raw seaweed and water is installed inside the separation sleeve. 4. The foreign matter removing device for fresh seaweed according to claim 3, wherein the side wall of the separating cylinder is formed by spirally winding a flexible wire to adjust a gap between adjacent flexible wires. 5. The raw seaweed foreign matter removing device according to claim 3, wherein the inner wall cleaning means of the separating cylinder is rotatably installed inside the separating cylinder, and a spiral brush is installed on the outer wall of the inner cylinder. 6. The foreign matter removing device for raw seaweed, wherein the spiral brush is a fiber flock or a flexible thin plate.