JPS6128372A - Method for adjusting concentration of prepared laver stock and apparatus therefor - Google Patents

Abstract

PURPOSE:To eliminate erroneous concentration adjustment and form umiform laver sheets, by detecting the variation in thickness of laver sheets formed on laver screens by measuring transmitted light of the laver, and changing the concentration controlled variable of the prepared stock. CONSTITUTION:A detection part 22 of thickness variatiol of formed sheets constituted of a light emitting part 19 containing a light source lamp 18 and a light receiving part 21 containing an illuminometer 20 is provided in a transfer line of laver reed screens 24. The laver reed screens 24 having each laver sheet 23 formed thereon are passed through a gap between the light emitting part 19 and the light receiving part 21 to detect the variation in the formed thickness of the laver sheet 23 by measurement of the increase or decrease in the transmitted light. The increase or decrease value is then output to a concentration adjusting controlling part 25 to change the concentration controlled variable.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for controlling the concentration of a seaweed mixture supplied to a seaweed machine.
The present invention relates to a method for adjusting the concentration of a mixed liquid supplied at a set concentration and an apparatus therefor.

[Conventional technology]

Conventionally, there has been a device, as shown in Utility Model Application Publication No. 59-6G6FF9, which allows the concentration of the seaweed mixture supplied to the seaweed machine to reach a set value, which was developed by the applicant of the present invention. proposed by.

In such a conventional seaweed concentration adjusting device, when the seaweed concentration in the mixing tank m is lower than the set concentration, the seaweed mixture liquid (4) in the mixing tank (1) is removed by a drainage pump equipped with a filter. By transferring only the water from the water to the fresh water tank (2), the concentration is increased to the set concentration, and when the concentration is higher than the set concentration, the water in the fresh water tank (2) is pumped by the water supply pump (6). It is configured to adjust the concentration by supplying water into the mixing tank (1) and lowering the concentration to a set concentration.

To adjust the concentration of the mixed liquid (4), the concentration of the mixed liquid (4) is detected by a concentration detection unit 09 using transmitted light installed in the conduit for the mixed liquid from the mixing tank (1) to the seaweed machine. However, due to the difference with the concentration setting of the concentration adjustment device, the drainage pump aω in the mixing tank (1) or the water supply pump (6) in the fresh water tank (2)
) is activated and stopped. This detection mechanism with the detection part α is a device that detects the transmitted light of the liquid mixture (4) that passes between a light emitting part and a light receiving part, and thereby detects the concentration of the liquid mixture.

Normally, it is assumed that there is no reduction in transmitted light due to water, and the concentration of the liquid preparation is determined based on the degree of decrease in transmitted light due to seaweed pieces. However, due to the deterioration of the quality of seaweed over time after the seaweed raw algae are picked and/or minced, or in the case of fragile seaweed quality, pigments may flow out from the seaweed pieces without the passage of time. Colors the water in the mixture reddish-purple. As a result, since the transmitted light is also reduced by the colored water, the concentration of the liquid preparation is detected after the transmitted light is reduced by both the seaweed pieces and the colored water. Therefore, the apparent concentration of seaweed is detected to be higher than the actual concentration, so the concentration is adjusted to be lower than the set concentration.

This not only does not result in dried seaweed having the desired weight or thickness, but also when the sheet-formed seaweed layer is too thin, during drying,
Another problem is that the peeling process creates tartar on the dried seaweed.

[Purpose of the invention]

The present invention has been made to solve these problems, and it is possible to avoid errors in the detection of the apparent concentration of the liquid mixture due to the fact that the water in the liquid mixture is colored with pigments extracted from seaweed pieces. In order to correct the adjustment operation, we measured the changes in the actual thickness of the seaweed after it was formed on the seaweed screen, or after it was formed and dehydrated, using a luminometer that compared the actual thickness of the seaweed with the light source. By photometrically detecting the transmitted light of the seaweed that has been formed into sheets and changing the concentration control value of the blended liquid (this is the set value for conventional types), the fluctuation in the thickness of the sheet-formed seaweed can be corrected. We aim to improve and stabilize the quality of dried seaweed by providing a method and device for adjusting the concentration of a mixed liquid that can eliminate the above-mentioned incorrect concentration adjustment and fully automate the concentration adjustment with high reliability. It is something to do.

[Means for solving problems]

In order to solve such problems in the prior art, the means of the present invention is to provide a mixing tank and a clean water tank which are connected to each other so that water can be transferred and adjusted, and the mixing tank is filled with water and seaweed pieces. In this method, the blended liquid is separately supplied, and the blended liquid with an appropriately adjusted concentration is supplied from the blended tank to the nori shaving machine via a concentration detection unit using transmitted light. Measures the transmitted light of seaweed that has been made into paper sheets or has been made and dehydrated in a seaweed cage, detects fluctuations in the measured output value, and uses this detection signal to correct the concentration control value of the concentration control section of the blended liquid. A seaweed mixture concentration adjusting device is provided, which is characterized by maintaining the thickness of the prepared seaweed at a constant level, and a mixing tank and a clean water tank are connected to each other so that water can be transferred and adjusted. A mixture of water and seaweed pieces is separately supplied to the tank, and the concentration is adjusted to a preset concentration by the nori shaving machine via a concentration detection unit using transmitted light. The device is configured to be supplied with a liquid preparation, and includes a sheet-forming nori thickness measurement detection unit that measures the transmitted light of seaweed formed on the seaweed sheet or formed and dehydrated in a seaweed cage. , is installed in the seaweed pen transfer line, and this thickness variation detection part is connected to the liquid mixture concentration control part, and the concentration control value of the liquid liquid concentration detection part is corrected, so that the thickness of the prepared seaweed is kept constant. This is based on an apparatus for adjusting the concentration of seaweed mixture, which is characterized in that the concentration of seaweed mixture is maintained.

〔Example〕

Figure 1 is a block diagram of the present invention, Figure 2 is a partially cutaway front view of the liquid mixture concentration adjustment unit, Figure 3 is a perspective view of the thickness variation detection unit for sheet-forming seaweed, and Figure 3 is a perspective view of the thickness variation detection unit for sheet-forming seaweed. It is a partially cutaway front view same as the above.

(1) is a mixing tank, (2) is a fresh water tank, and both tanks (1)
, (2 rooms are divided into two sections by partition walls (3).

Although not shown in the upper part of the mixing tank (1), a mixing machine is installed, and inside the mixing tank (1), a mixing liquid (4) is stirred and normal pressure water and seaweed pieces are mixed. A stirring blade (5) is provided to maintain uniformity.

In addition, a water supply pump (6) is submerged in the fresh water tank (2), and a water supply pipe (7) connected to the discharge side of this pump is as follows.
It is connected to a water sprinkling member (8) attached to one side of the mixing tank (13), so that the water (9) in the fresh water tank (2) is appropriately supplied into the mixing tank (1). QO) is a drainage pump immersed in the mixing tank (1), and the discharge pipe σD connected to the drainage pump aυ is connected to the filter 22) (Ll) attached to the partition wall (3),
The composition is such that the mixed liquid (4) is directly supplied into the filter unit α, and only the water filtered here is transferred to the fresh water tank (2) through the pipe Q. ,Also,
The remaining concentrated mixture passes through the pipe (c),
Reflux to the mixing tank (1). Furthermore, (131 is a pipe whose one end is connected to the bottom of the mixing tank (1) and the other end is connected to a seaweed machine (not shown), and the pipe α4 is connected to a pump σ4. A light-type liquid mixture concentration detection part α9 is installed.In the transfer line of the nori basin, there is a light emitting part (L9) on the nori basin with a built-in light source lamp and a light emitting part (L9) ) and facing the light emitting part (to)
A sheet-formed seaweed sheet thickness variation detection unit (two sheets are provided) consisting of a light-receiving unit Cυ with a built-in light-receiving unit Cυ, and in the gap between the light-emitting unit (11 and light-receiving unit 01) The change in the thickness of the seaweed (C) is detected by measuring the increase/decrease in the transmitted light, and the increase/decrease value is output to the concentration adjustment control section (251) to adjust the concentration. By changing the concentration control value of the adjustment control section (c), the concentration detection section α
Seaweed caused by incorrect concentration adjustment caused by detecting the apparent concentration of the mixture due to the coloring of the water in step 9 (23)
The thickness of the paper is automatically corrected so that it is always maintained at the set thickness (weight of dry seaweed) regardless of the degree of coloration of the water in the mixture.

〔effect〕

As described above, according to the present invention, it is possible to eliminate the fluctuations in the thickness of the prepared seaweed that occur when detecting the apparent concentration of the prepared liquid by coloring water in the conventional transmitted light concentration detection method, and to It is possible to maintain the set thickness and weight of dried seaweed and to perform uniform hanishō, thereby reducing the number of tears in the dried seaweed, ensuring uniform quality, and improving product value. , the effect is great.

[Brief explanation of drawings]

Figure 1 is a Plutsuk diagram, Figure 3 is a partially cutaway front view of the device for adjusting the concentration of the mixed liquid, and Figure 3 is a perspective view of the device for detecting changes in the thickness of the molten moss. Figure f is a partially cutaway front view of the same as above. [1) ゛°° mixing tank, (2)... fresh water tank, (4)...
... Mixed liquid, (6) ... Water supply pump, (7) ... Water supply pipe, (8) ... Water supply member, a2 ... Filter unit, (131 ... Pipe, Q4) ...・Pump, (151...Prepared liquid concentration detection unit, aυ...
Lamp, aCJ... light emitting part. (Company)...Luminance meter, (2υ...Light receiving section, (24...
・Set-formed seaweed sheet thickness variation detection unit, (c)...Shot-formed seaweed, (24)...Seaweed cage, @...Concentration adjustment control unit.

Claims (2)

[Claims] (1) A mixing tank and a clean water tank are provided so that water can be transferred and adjusted to each other, and a mixture of water and seaweed pieces is separately supplied to the mixing tank, and a mixture of water and seaweed pieces is separately supplied from the mixing tank. In this method, a liquid mixture with an appropriately adjusted concentration is supplied to a seaweed machine through a concentration detection unit using transmitted light. The transmitted light of the cage was measured to detect fluctuations in the measured output value, and this detection signal was used to correct the concentration control value of the concentration control section of the liquid mixture, so that the thickness of the seaweed made into sheets was maintained constant. A method for adjusting the concentration of seaweed mixture. (2) A mixing tank and a fresh water tank are provided so that water can be transferred and adjusted to each other, and a mixture of water and seaweed pieces is separately supplied to the mixing tank, and a mixture of water and seaweed pieces is supplied separately from the mixing tank. ,
In a device in which a liquid preparation adjusted to a preset concentration is supplied to a nori sheeting machine through a concentration detection unit using transmitted light, the seaweed sheet is formed on a nori cage, or A sheet-forming seaweed thickness measurement detection unit that measures the transmitted light of the dehydrated seaweed contained in the seaweed cage is installed in the seaweed cage transfer line, and this thickness variation detection unit is connected to the blended liquid concentration control unit. A seaweed mixture concentration adjusting device characterized in that the concentration control value of the mixture concentration detection section is not corrected, and the thickness of the seaweed sheet is kept constant.