JPS6137903B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an iron powder removing device in a seaweed production device.

The process of manufacturing seaweed generally involves mincing raw seaweed into short pieces → washing with water → mixing seaweed and water in a mixing machine → temporarily storing it while stirring in a stirring tank → cutting it with a seaweed machine → drying However, during the process, rust from machinery and iron powder adhere to the seaweed, and the raw seaweed itself is also contaminated with iron powder. If such rust or iron powder gets mixed into the seaweed, it not only reduces the quality of the seaweed, but it is also unfavorable from a sanitary standpoint.The permanent magnet is used as a method to remove this, and the arrangement of the permanent magnet is A part is a place where a mixture of seaweed and water (generally referred to as mixed seaweed, hereinafter referred to as mixed seaweed) passes through, for example, a part located on the way from a mixing machine to a stirring tank. inside the so-called impurity removal equipment (see Figure 1) or in the stirring tank (second
(see figure).

As shown in the diagram, the impurity removal device consists of a gutter made of stainless steel or galvanized iron plate, and several partition plates 2 in the middle.
{2a, 2b, 2c, 2d} are provided, and while the mixed paste passes through each partition plate, impurities such as sand and shellfish are heavy, so they sink to the bottom and pass through these partition plates. It has become impossible to do so.

4 is a mixed glue transport pipe, 5 is a mixed glue outlet, 6
is a permanent magnet for removing iron powder.

The stirring tank is a tank that temporarily stores the mixed seaweed, and the purpose of stirring is to prevent the seaweed from separating from the water.

8 is a rotating blade for stirring, 9 is a mixing paste transport pipe, 1
0 is a mixed glue outlet, and 11 is a permanent magnet for removing iron powder.

However, in the above method, since the permanent magnet is located at the bottom, not all of the mixed paste passes by the magnet, and the iron powder cannot be completely absorbed. Furthermore, it was difficult to remove the adsorbed iron powder.

On the other hand, unlike the methods described so far, there is a method in which the magnetic adsorption force of the permanent magnet is weakened to make it easier to remove iron powder, but this also reduces the ability to adsorb and remove iron powder in the blended glue. This is not a very good method as it weakens it.

The present invention relates to a device that eliminates the above-mentioned drawbacks, the gist of which is to provide a system for dispensing with the gutter through which the mixture of seaweed and water is to flow.
A partition plate is provided through which the mixture of seaweed and water can overflow and pass through, and an iron powder adsorption tool made of an electromagnet or a permanent magnet is removably or fixedly attached to the upper part of the partition plate, and the upper surface of the partition plate is An iron powder in a seaweed production device, characterized in that an eaves plate is attached to the rim, the eaves plate protrudes to one or both of the upstream side and the downstream side, and one or both of the eaves plates are bent downward. It is a removal device.

The iron powder removing device of the present invention will be described in detail below with reference to FIGS. 3 and 4. That is, partition plates 2 {2a, 2b, 2c, 2
d, 2e} are arranged. Although there are no particular limitations on the materials of the gutter 1 and the partition plate 2, it is preferable to use non-magnetic and corrosion-resistant materials such as austenitic stainless steel or plastic for reasons described in detail later.

For example, an iron powder suction tool 12 is attached to the upper part of the partition plate 2e of the partition plates 2. Hereinafter, the partition plate 2e to which the iron powder suction tool 12 is attached will also be generally referred to as the partition plate 2. The size of the iron powder suction device,
Depending on the type, electromagnets or permanent magnets are used. In other words, electromagnets make the device larger and more complicated, but if you do not apply electricity to remove the iron powder, the iron powder will remove itself. It has the advantage of being able to be removed by falling, and permanent magnets do not have such an advantage, but a simple device is sufficient and the iron powder can be removed by removing the permanent magnet, each having its own advantages and disadvantages. Also, it is related to whether the material of the iron powder suction tool 12 is an electromagnet or a permanent magnet, and the following methods can be considered for the method of attaching the iron powder suction tool. That is, the third
As shown in the figure, a hollow part with a ceiling bottom is formed in the upper part of the partition plate 2 {2e} when viewed from below or from the side, and the iron powder suction tool 12 is attached to the hollow part so that it can be freely moved in and out. However, it is also possible to consider a method in which the upper part of the partition plate 2 itself is made of a magnet (an electromagnet or a permanent magnet may be used).

In the figure, 12a is a support plate for the iron powder adsorption tool, 13 is a magnet inlet/outlet, and 4 is a pipe for transporting the blended glue from the blender. Straight plates are also used for the partition plate 2, as shown in 2a to 2d in Figure 1, but among the impurities, shellfish and other impurities are crushed in the previous process and are often less than 5 mm in size, so these and small sand grains are Since it is easy to be carried away by the flow of the blended glue and difficult to completely remove, in order to effectively prevent this and make it sink downward, the partition plate 2 is provided with eaves that protrude toward the upstream side, as shown in 2a to 2d in Fig. 3. 3. The protruding length of this eave is determined by the flow rate and flow rate of the blended glue, but in general
It is set at 10mm to 20mm.

An eaves plate 14 is attached to the upper surface of the partition plate 2e for the same purpose as the above-mentioned eaves 3, and also for the purpose of enhancing the iron powder removal effect by the iron powder suction tool 12. It is preferable to use a non-magnetic and corrosion-resistant material for the eaves plate 14 as in the case of the gutter 1 and the partition plate 2 described above.

Here, talking about the materials of the gutter 1, partition plate 2, and eaves plate 14, if these are made of a magnetically sensitive material such as ordinary steel, the mixed glue emitted from the iron powder suction tool 12 and located around it. It is preferable to use a non-magnetic and corrosion-resistant material such as austenitic stainless steel or plastic, since the lines of magnetic force that should extend to the magnetic field will form a closed circuit and will not work effectively.

The eaves plate 14 has an upstream protrusion 14a or a downstream protrusion 14b.
As described above, this effectively prevents impurities such as sand and shellfish, but in the present invention, the upstream protrusion 14a and the iron powder adsorption tool 3 are further provided in close proximity to each other. New effects are created through interaction.

The present invention also proposes providing a downstream protrusion 14b. Figure 4 shows partition plate 2{2
FIG. 3 is an explanatory diagram showing the relationship between the magnetic force lines of the iron powder adsorbing tool 12 and the flow of the blended glue in the cross section of the iron powder adsorbing tool 12. Fourth
In the figure, 15 is the magnetic field line of the iron powder suction tool, which comes out from the top surface of the magnet and reaches the bottom surface of the magnet.
Near point 2, the lines of magnetic force are dense and the attraction is strong, and as you move away from it, the attraction becomes weaker.

16 is an upstream flow of the blended paste, and 17 is a downstream flow thereof. To explain how the upstream flow 16 flows, there is a surface portion 16a, a middle layer portion 16b, and a deep layer portion 16.
c. In addition to the orthogonal portion 16d, there is a stagnation portion 16e at the bottom of the upstream protrusion 14a. The flow velocity is the surface part 16a
is the fastest, and gradually becomes slower at 16b, 16c, and 16d, and the stagnation part 16e is separated from the main flow of 16a to 16d and circulates at the same location, and the flow rate is also very slow.

The downstream flow 17 includes a surface portion 17a and a middle layer portion 17.
b, in addition to the deep portion 17c and the orthogonal portion 17d, there is a stagnation portion 17e below the downstream protrusion 14b. The flow velocity is fastest in the surface portion 17a, and in the surface portions 17b, 17c, 1
7d, and the stagnation part 17e becomes 17a~
It circulates in the same place away from the main flow of 17d, and the flow rate is also very slow. As described above, the stagnation parts 16e and 17e are close to the iron powder suction tool 12 and have a strong magnetic force, and since rust and iron powder are caught and retained in these parts, they can be reliably captured and adsorbed.

Note that the upstream and downstream eave plate protrusions 14a, 14
If the position of the tip of b is within the range of strong magnetic force, all the flow will pass through these two points, so rust and iron powder will be attracted by the suction force, and the stagnant parts 16e and 17
The probability of being caught in e is increased, and capture becomes more reliable.

The eaves plate 14 has an effect only when the upstream side protrusion 14a or only the downstream side protrusion 14b is used, and the effect is obtained even when either one is implemented.
By using both the upstream and downstream sides, the effect is doubled, and what is missed on the upstream side is captured on the downstream side, further increasing the effect.

As described above, the protruding portion of the eaves plate 14 attached to the upper surface of the partition plate 2 has the effect of blocking impurities such as sand and shellfish and causing them to sink downward, and also has the effect of stagnating the mixed glue on the lower surface of the eaves plate 4. Rust and iron powder are retained in the area, and the lines of magnetic force of the iron powder adsorption tool 12 are concentrated in that area to exert a strong suction force, thereby increasing the rust and iron powder trapping effect. Therefore, the tips of the upstream and downstream protrusions of the eaves plate 14 must be within the range where the magnetic force of the iron powder adsorber 12 can effectively reach, and if the overhang length of the eaves plate 14 is short, There is a risk that the iron powder will be absorbed and clump together and be swept away by the flow of the mixed glue, reducing its effectiveness.

The protruding length of the eaves plate 14 and the strength of the magnetic force of the iron powder suction tool 12 are determined from these points and the flow rate and flow velocity of the blended paste.

As a general example, the overhang length of the eaves plate is 10~
Although it is set to 20 mm, it is not necessarily limited to this.

FIGS. 5, 6, and 7 show other embodiments of the present invention, and the same or corresponding parts are designated by the same numbers. These are the ones in which the downstream side protrusion 14b is bent, and FIG. 5 shows it bent from the protrusion base end, FIG. 6 shows it bent from the middle between the protrusion base end and the tip, and FIG. 7 shows it bent in an arc shape. . In either case, the depth of the stagnation part 17e is increased to increase the amount of stagnation circulation and further enhance the trapping effect.

FIGS. 8, 9, and 10 show still other embodiments of the present invention, and the same or corresponding parts are designated by the same numbers.
These are ones in which the upstream side overhang 14a is bent, and FIG. 8 shows it from the base of the overhang, FIG. 9 shows it from the middle between the base and the tip of the overhang, and FIG. 10 shows it bent in an arc shape. It is something that In both cases, the depth of the stagnation portion 16e is increased to increase the amount of stagnation circulation and to enhance the scavenging effect.

By bending the eaves plate in this way, the upstream side,
Each has an effect on the downstream side, and the effect is further doubled by using both together.

As described above, according to the present invention, the gutter through which the mixture of seaweed and water flows is provided with a partition plate through which the mixture of seaweed and water can overflow and pass through, and the upper part of the partition plate is An iron powder suction tool made of an electromagnet or a permanent magnet is attached removably or fixedly, and eaves plates with tips protruding from both sides of the partition plate are attached to the upper surface of the partition plate, so that nori and water can be removed. By creating stagnation in the flow of the mixture on the part of the iron powder adsorbent that has strong adsorption power, rust and iron powder can be removed efficiently. Although the device of the present invention is effective even with one stage, it is of course more effective if it is multi-staged. Further, it is possible to arbitrarily select whether the eaves plate is attached to the partition plate or the partition plate and the eave plate are integrated.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the impurity removal device used in the nori production equipment, Figure 2 is an explanatory diagram of the same stirring tank,
FIG. 3 is an explanatory diagram of an embodiment of the present invention, and FIG.
The figure is an explanatory diagram of magnetic lines of force and how the blended glue flows, and FIGS. 5 to 10 are explanatory diagrams of other embodiments of the present invention. In the figure, 1: gutter, 2: partition plate, 12: iron powder adsorbent, 13: magnet entrance/exit, 14: eaves plate, 14a: upstream protrusion, 14b: downstream protrusion, 15: magnetic field lines, 16: formulation Seaweed upstream flow, 16e: Stagnation part, 17: Mixed seaweed downstream flow, 17e: Stagnation part.

Claims (1)

[Claims] 1. A partition plate is provided in the gutter through which the mixture of seaweed and water is to flow, allowing the mixture to overflow and pass through, and an iron powder adsorbent made of an electromagnet or a permanent magnet is attached and detached from the top of the partition plate. 1. An iron powder removal device for a seaweed production device, which is mounted freely or fixedly, and has an eaves plate attached to the top surface of the partition plate.