JP2005348752A - Peripheral attachment for laver sheet drying chamber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a peripheral attachment for a laver sheet-drying chamber that can perform a high-level humidity control in a laver sheet drier, particularly in a large scale chamber. <P>SOLUTION: This peripheral attachment for the laver sheet-drying chamber is equipped with a first chamber 11 that is set on the drying chamber 9, a fourth chamber 12 that is set on the first chamber 11 and communicates to the outside atmosphere, and a second chamber 13 that is set on the side of the drying chamber 9, into which primary air is introduced and communicates to the first chamber 11. In addition, a first opening part 21 for opening between the first chamber and the fourth chamber and a fun 15 for sucking second air in the first chamber to flow into the fourth chamber are set, and additionally, a second opening 22 for introducing the primary air into the second chamber 13 is also equipped. Further, a third opening part 23 is opened between the first chamber 11 and the second chamber 13 for introducing the second air in the fist chamber 11 into the second chamber 13. An air heater 34 is provided to heat the mixed gas of the primary air and the secondary air in the second chamber 13 and to sent the heated mixed gas to the lower part of the drying chamber 9. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an accessory device for a laver drying chamber for producing sheet-like dry laver.

  The laver production apparatus is composed of a front part including a papermaking part and a dewatering part, and a drying chamber adjacent to the front part. While moving the front part of the reed holder holding the reeds with a conveyor, the raw laver is thinly drawn on the reeds in the paper making part, then the reed holder is moved to the dewatering part, where the raw laver on the reed is generally pressed. Dehydrate and send to drying room. Then, the raw laver is dried while transporting the cocoon holder through the drying chamber, and the generated sheet-like dry laver is peeled off from the cocoon at the stripping portion.

  The finish (quality) of dry seaweed depends greatly on the quality of the dryness. Therefore, in order to produce high quality dry seaweed, humidity control in the drying room is extremely important. On the other hand, in recent years, laver production apparatuses have become larger and the laver drying chamber (hereinafter also simply referred to as drying chamber) has become larger. Therefore, it has become difficult year by year to ensure the humidity control of the entire drying room.

  Accordingly, an object of the present invention is to provide an attachment device for a laver drying chamber that can favorably manage the humidity of a drying chamber that is particularly large.

  The attachment device of the seaweed drying chamber of the present invention is a method in which raw seaweed is drawn up in the paper extraction part on the rice cake held by the rice cake holder, and after the raw seaweed is dehydrated in the dehydration part, the rice cake holder is removed from the drying room. A laver drying chamber accessory in a laver production apparatus that dries fresh laver while transporting the seaweed, and includes a first chamber located on the drying chamber and secondary air blown up from the drying chamber to the first chamber A first opening / closing section and a fan for discharging the air to the outside, a second chamber which is in a side portion of the first chamber and communicates with the first chamber and into which secondary air is introduced from the first chamber; A second opening / closing portion for introducing primary air from the outside to the chamber, and the mixed gas of the primary air and the secondary air mixed in the second chamber is heated by an air heater to lower the drying chamber I was sent to.

  Further, the attachment device for the laver drying chamber according to claim 2 is the attachment device for the laver drying chamber according to claim 1, wherein the second opening and closing part is provided in the longitudinal direction of the drying chamber, thereby providing the second The chamber was divided into a plurality of spaces along the longitudinal direction, and a humidity sensor was provided in each of these spaces to control the opening / closing of these second opening / closing portions independently of each other.

  ADVANTAGE OF THE INVENTION According to this invention, the humidity adjustment of a elongate drying chamber can be performed exactly, and a high quality dry nori can be manufactured by drying raw nori satisfactorily.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of the laver production apparatus, FIG. 2 is a front sectional view of the laver production apparatus, FIG. 3 is a plan view of the first to fifth spaces, FIG. 4 is a side view of the opening and closing unit, and FIG. It is a block diagram of a system.

  In FIG. 1, 1 is a front | former stage part, The paper making part 2, the dehydration part 3, the peeling part 4 grade | etc., Is included. A cocoon holder 6 in which a plurality of cocoons 5 are stretched is moved by a conveyor (not shown) such as a chain conveyor, and the raw laver is thinly made into a sheet on the cocoon 5 in the paper making section 2, and then the cocoon holder 6 Is moved to the dehydrating unit 3 to dehydrate the raw seaweed, and then the cocoon holder 6 is carried into the drying chamber 9. Then, after the raw laver m (FIG. 2) is dried while the basket holder 6 is conveyed by the conveyor 7 (FIG. 2) in the drying chamber 9, the stripped portion 4 provided near the exit of the front stage 1 or the drying chamber 9 Then, the sheet-like dry seaweed is peeled off from the cocoon 5.

  Next, the drying chamber 9 and the surrounding facilities will be described. In FIG. 2, the laver production apparatus including the front stage 1 and the drying chamber 9 is installed in the hut 10. The drying chamber 9 is long, and a first chamber 11 serving as a ceiling chamber is provided thereon. The secondary air in the drying chamber 9 blows upward and flows into the first chamber 11 (arrow A). On the first chamber 11, a fourth chamber 12 is provided as a communication chamber to the outside world. A side chamber of the drying chamber 9 and the first chamber 11 is provided with a third chamber 14 as a side chamber. Inside the third chamber 14 is a second chamber 13 which is a mixed chamber of primary air and secondary air. Is provided. In the third chamber 14, primary air (fresh, low-humidity air from the outside) is introduced from the gap or the entrance / exit of the hut 10, and this primary air is introduced into the second chamber 13 through the third chamber 14. (Arrow E). In the present embodiment, a part of the hut 10 is used as the side chamber 14. The second chamber 13 is adjacent to the side of the first chamber 11 and communicates with the first chamber 11. The upper part of the drying chamber 9 is an opening 8 and communicates with the first chamber 11. Note that the opening 8 may be provided with an opening / closing part made of a damper that can be freely opened and closed. An opening / closing door 18 is provided on the side wall of the first chamber 11. When the open / close door 18 is opened, the air in the working chamber 19 on the side of the drying chamber 9 (this air is warmer than the outside air and lower in humidity than the secondary air) is introduced into the first chamber 11 (arrow). H). The open / close door 18 may be either a manual type or an automatic type.

  A first opening / closing part 21 (211 to 215) is provided between the first chamber 11 and the fourth chamber 12, and this is driven to open and close, thereby opening the space between the first chamber 11 and the fourth chamber 12. Open and close. A fan 15 (151 to 155) for sucking the secondary air in the first chamber 11 and flowing it into the fourth chamber 12 is provided at the boundary between the first chamber 11 and the fourth chamber 12. A second opening / closing part 22 (221 to 225) is provided between the second chamber 13 and the third chamber 14, and opens and closes between the second chamber 13 and the third chamber 14 by being driven. When the second opening / closing part 22 is opened, the primary air in the third chamber 14 is introduced into the second chamber 13 (arrow E). That is, the second opening / closing part 22 is a primary air introduction opening / closing part for introducing the primary air from the outside into the second chamber 13. In FIG. 2, a first chamber 11, a second chamber 13, a fan 15, a first opening / closing portion 21, a second opening / closing portion 22, etc. enclosed by a one-dot chain line are attached to the drying chamber 9. The apparatus 100 is provided.

  A third opening / closing part 23 (231 to 235) is provided between the first chamber 11 and the second chamber 13, and opens and closes between the first chamber 11 and the second chamber 13 when driven. When the third opening / closing part 23 is opened, the hot and humid secondary air blown up from the drying chamber 9 and introduced into the first chamber 11 is introduced into the second chamber 13 (arrow D). That is, the third opening / closing part 23 is a secondary air introduction opening / closing part for introducing the secondary air in the drying chamber 9 into the second chamber 13. A fourth opening / closing part 24 for communicating with the outside world is provided at the upper part of the fourth chamber 12, and when this is opened, the air blown up from the first chamber 11 to the fourth chamber 12 is released to the outside world. (Arrow B). The fan 15 and the open / close sections 21 to 24 are arranged in parallel in the longitudinal direction of the drying chamber 9 (five in this embodiment). Although not shown in the figure, a plurality of (four in this example) fourth open / close sections 24 are also arranged in the longitudinal direction of the drying chamber 9 as in the first to third open / close sections 21 to 23. Yes.

  FIG. 4 shows an opening / closing mechanism of the first to fourth opening / closing parts 21 to 24. The dampers 25 of the open / close sections 21 to 24 are driven by a motor M as a drive section via a link mechanism 26, and open / close by swinging in the direction of arrow a. Reference numeral 27 denotes a shaft portion. Such an opening / closing mechanism is known.

  1 and 2, a long duct 30 is horizontally provided in the third chamber 14 in the longitudinal direction of the drying chamber 9. Openings 31 (311 to 315) serving as hot air blowing portions are opened on the upper surface of the duct 30. There are a plurality of openings 31, preferably the same number (5) as the number (5) of the second opening / closing parts 22 (221 to 225), each being located below the second opening / closing part 22. ing.

  In FIG. 2, the duct 30 is connected to a hot air machine 33 through a pipe 32. The warm air machine 33 warms the fresh, low-humidity primary air sucked into the warm air and sends it to the duct 30 and blows it out from the opening 31 into the third chamber 14 as warm air (arrow F). The hot air blown out is sucked into the second chamber 13 from the second opening / closing part 22 (arrow E). The timing for supplying the primary air warmed by the hot air heater 33 to the second chamber 13 can be freely determined. In short, when the humidity in the drying chamber 9 becomes excessively humid or fresh in the drying chamber 9 When it is desired to supply primary air, the second opening / closing part 22 is opened to introduce primary air into the second chamber 13, and further heated by the air heater 34 and fed into the drying chamber 9. The operation units such as the fan 15 and the open / close units 21 to 24 are controlled by a control unit 50 (described later) such as a computer. The present invention is intended to optimally manage the humidity in the drying chamber 9. The fan 15, the open / close units 21 to 24, the hot air heater 33, the air heater 34, and the like for achieving the intended purpose. The operation control method of the operation unit such as the moisture generator 40 can be freely determined, and is not limited to the operation control method described later. In the present invention, fresh and low-humidity air introduced from the outside world and sent to the drying chamber 9 is referred to as primary air, and the high temperature and high humidity discharged from the drying chamber 9 is deprived of moisture from the raw nori in the drying chamber 9. Air is called secondary air.

  In FIG. 2, an air heater 34 made of a burner or the like is provided in the lower portion of the second chamber 13 inside the third chamber 14. The air heater 34 heats the air (arrow C) introduced from the second chamber 13 into the lower portion of the drying chamber 9 as hot air, and blows up the drying chamber 9 upward (arrow A). In the drying chamber 9, a cocoon holder 6 that holds the cocoon 5 made from the raw nori m is conveyed and circulated to the conveyor 7, and the hot air blows against the raw nori m to dry it.

  In FIG. 2, reference numeral 40 denotes a moisture generator composed of a boiler or the like, and humid air such as steam generated thereby passes through a hose 41 and is sent into the third chamber 14 from the discharge part 42 (arrow). G), introduced from the second opening / closing part 22 into the second chamber 13 (arrow E), further heated by the air heater 34 and fed into the drying chamber 9 (arrow C). The timing at which the moisture generated by the moisture generator 40 is sent to the drying chamber 9 through the second chamber 13 can be freely determined. In short, when the humidity in the drying chamber 9 decreases, the second opening / closing portion 22 is opened. The moisture may be opened and introduced into the second chamber 13 and further heated by the air heater 34 and fed into the drying chamber 9. The primary air in the outside world is not directly introduced from the outside world into the second chamber 13 but is once introduced into the third chamber 14 and then introduced into the second chamber 13 from the third chamber 14 as in the present embodiment. In addition, stable primary air can be introduced without being affected by external weather or the like.

  In FIG. 3, an arbitrary number of first humidity sensors SA and SB are provided in the drying chamber 9 as humidity detecting means for detecting and measuring the humidity of the drying chamber 9. In the present embodiment, two (a humidity sensor SA on the front side of the drying chamber 9 and a humidity sensor SB on the rear side) are provided. Since the humidity of the drying chamber 9 and the humidity of the first chamber 11 are substantially correlated, a humidity sensor is provided in the first chamber 11 and the humidity of the drying chamber 9 is obtained as a humidity parameter of the first chamber 11. In short, the humidity of the drying chamber 9 may be substantially measured by a humidity sensor.

  In addition, second humidity sensors S <b> 1 to S <b> 5 are also provided in the second chamber 13. The second humidity sensors S <b> 1 to S <b> 5 are first spaces (first portions) corresponding to the space between the second opening / closing part 22 (221 to 225) and the third opening / closing part 23 (231 to 235). It is provided in each of the T1 to fifth spaces (fifth part) T5 and detects and measures the humidity of the mixed gas of primary air and secondary air in each of these spaces (parts) T1 to T5. . And each 2nd opening-and-closing part 221-225 is controlled mutually independently based on the measurement result of these humidity sensors S1-S5, and, thereby, makes the 2nd chamber 13 the longitudinal direction of the drying chamber 9. The humidity of each of the spaces T1 to T5 divided into a plurality along the line is adjusted independently of each other. Although the number of the second humidity sensors S can be arbitrarily determined, a plurality of second humidity sensors S corresponding to the number of the second opening / closing parts 22 and the third opening / closing parts 23 (that is, the number of spaces) as in the present embodiment ( In this example, five are provided, and the second open / close sections 221 to 225 are opened and closed so that the humidity in each space T1 to T5 is equal (that is, the measured humidity of each humidity sensor S1 to S5 is equal). It is desirable to control.

  Next, the control system will be described with reference to FIG. The control unit 50 is connected with humidity sensors SA, SB, and S1 to S5. The control unit 50 is connected to operating units (fan 15, first to fourth opening / closing units 21 to 24, hot air heater 33, air heater 34, moisture generator 40, and the like). The control unit 50 also includes a comparison unit 52 for determining whether the humidity measured by the calculation unit 51, the humidity sensors SA, SB, and S1 to S5 has reached the set humidity, and a memory in which various set humidity is registered. Part 53 and the like. Each set humidity is set according to the laver quality. The calculation unit 51 performs calculations necessary for the operation of the apparatus, such as calculation of the humidity of the drying chamber 9 (in this embodiment, the average value of the output values of the humidity sensors SA and SB). The comparison unit 52 compares the measurement results of the humidity sensors SA, SB, and S1 to S5 with the magnitude of the set humidity registered in the storage unit 53. Each operation part (fan 15, first to fourth opening / closing parts 21 to 24, warm air machine 33, air heater 34, humidity generator 40) is measured by humidity sensors SA, SB, S1 to S5 and the set humidity. Are compared by the comparator 53, and the drive is controlled based on the result. Control of the operation of each operation unit using the calculation unit 51, the comparison unit 52, and the like can be performed by using known software.

  Next, the operation of each operation unit will be described. The humidity of the drying chamber 9 is measured by the humidity sensors SA and SB, and it is found that the humidity is equal to or higher than the set humidity (this is determined by the humidity of the drying chamber 9 obtained by the calculation unit 51 and the storage unit 53). The fan 15 rotates in FIG. 2, the first opening / closing part 21 and the fourth opening / closing part 24 are opened, and blown up from the drying chamber 9. Further, the hot and humid secondary air in the first chamber 11 is sent to the fourth chamber 12 and discharged from the fourth opening / closing part 24 to the outside. As a result, the secondary air in the drying chamber 9 is released to the outside (arrows A and B), and the humidity of the drying chamber 9 decreases. When the secondary air in the drying chamber 9 is discharged to the outside as indicated by arrows A and B, the second opening / closing part 22 is opened to introduce the primary air into the second chamber 13, It is desirable to heat it with the heater 34 and feed it into the drying chamber 9. When the humidity in the drying chamber 9 becomes equal to or lower than the set humidity, the fan 15 stops rotating and the first and fourth opening / closing sections 21 and 24 are closed.

  The humidity of each space T1 to T5 of the second chamber 13 is measured by humidity sensors S1 to S5. When the humidity exceeds the set humidity, the second opening / closing parts 221 to 225 are opened, and the inside of the third chamber 14 is Low humidity primary air is introduced into each of the spaces T1 to T5. For example, when the space T1 becomes equal to or higher than the set humidity, the corresponding opening / closing portion 221 is opened, or when the space T2 becomes equal to or higher than the set humidity, the corresponding opening / closing portion 222 is opened. Then, the primary air is introduced into the space T1 and the space T2, and the humidity in the spaces T1 and T2 decreases. And when it becomes below setting humidity, the opening-and-closing part 221,222 will close. The same applies to the spaces T3 to T5 and the opening / closing portions 223 to 225. In this way, when the humidity of each space (part) T1 to T5 is individually measured by each of the humidity sensors S1 to S5, and the measured humidity of each space (part) T1 to T5 is higher than the target humidity, The second opening / closing parts (primary air introduction opening / closing parts) 221 to 225 corresponding to the spaces (parts) are opened to introduce the primary air into the spaces (parts). The introduced primary air is introduced into the lower air heater 34 and heated, and then fed into the drying chamber 9. Such control of the second open / close units 221 to 225 is performed by the comparison unit 52 comparing the humidity measured by the humidity sensors S1 to S5 and the set humidity registered in the storage unit 53 in advance.

  That is, the humidity in each of the spaces T1 to T5 is measured by a unique humidity sensor S1 to S5. And when any humidity sensor S1-S5 becomes more than setting humidity, the 2nd opening-and-closing part 221-225 corresponding to this opens independently mutually, and introduces primary air to each space T1-T5 separately. As a result, the humidity in each of the spaces T1 to T5 is individually adjusted independently of each other. In such humidity adjustment, the second open / close sections 221 to 225 are opened and closed so that the humidity in each of the spaces T1 to T5 is equal (that is, the measured humidity of each humidity sensor S1 to S5 is equal). It is desirable to control this, so that the variation in humidity in the longitudinal direction of the long drying chamber 9 can be eliminated, the humidity of the entire drying chamber 9 can be made uniform, and the raw laver can be dried well. Of course, like the humidity measurement of the drying chamber 9, the entire second chamber 13 is measured as a single humidity by one or two humidity sensors, and if this exceeds the set humidity, all the second open / close sections are measured. The primary air may be introduced to the entire second chamber 13 by opening 221 to 225, and various settings are made to achieve the intended purpose (optimal management of the humidity of the drying chamber 9). Changes and driving methods are possible.

  The third opening / closing part 23 opens when the humidity of the drying chamber 9 becomes equal to or higher than the set humidity, and introduces secondary air into the second chamber 13 (arrow D). The primary air introduced into the second chamber 13 from the second opening / closing part 22 and the secondary air introduced into the second chamber 13 from the third opening / closing part 23 are mixed in the second chamber 13, This mixed gas is introduced into the air heating chamber 34, where it is heated and fed into the drying chamber 9 (arrow A). Further, when the humidity of the drying chamber 9 or the humidity of the second chamber 13 becomes equal to or higher than the set humidity, the warm air blower 33 opens the second opening / closing section 22 and sends warm air of low humidity to the second chamber 13. In addition, when the humidity of the drying chamber 9 becomes equal to or lower than the set humidity, the moisture generator 40 opens the second opening / closing unit 22 and supplies moisture to the second chamber 13. The air heater 34 introduces air in the second chamber 13, heats it, and sends it to the lower part of the drying chamber 9. Such control of the warm air machine 33, the humidity generator 40, and the air heater 40 is also performed by comparing the measured humidity with the humidity registered in the storage unit 53 in advance by the comparison unit 52.

  As described above, when the humidity of the drying chamber is high, a method for reducing the humidity is as follows: (a) a method of releasing the secondary air blown up from the drying chamber by opening the upper portion of the first chamber (ceiling chamber) to the outside; (B) A method in which primary air from the outside is introduced into the second chamber (mixing chamber), the primary air is heated by an air heater and sent to the drying chamber, and (c) 1 is introduced into the second chamber (mixing chamber). There is a method of introducing both secondary air and secondary air in the first chamber (ceiling chamber), heating the mixed gas of the primary air and secondary air with an air heater, and sending them to the drying chamber. The humidity of the drying chamber can be lowered below the target humidity by at least one of the methods, and desirably by combining two or more methods.

  Various design changes are possible for the laver production apparatus of the present invention, and various operation methods are possible for each operation unit. In short, the inside of the drying chamber 9 has an optimum humidity for drying raw laver. More preferably, the fan 15, the open / close units 21 to 24, the hot air heater 33, the air heater 34, and the humidity generation are performed so that each portion in the longitudinal direction of the drying chamber 9 has a more optimal humidity by drying raw seaweed. The drive of the operation unit such as the machine 40 may be controlled.

  According to the present invention, it is possible to accurately adjust the humidity of the long drying chamber and to dry the raw nori well to produce high quality dry nori, which is useful as an accessory device for the nori drying chamber. .

Perspective view of nori production equipment Cross section of nori production equipment Plan view of first space to fifth space Side view of the opening / closing part Block diagram of control system

Explanation of symbols

2 Papermaking section 3 Dehydration section 4 Stripping section 5 ６ 6 簀 Holder 9 Drying room 11 First room (ceiling room)
12 Room 4 (Communication room to the outside world)
13 Second chamber (mixing chamber)
14 Room 3 (side room)
15 Fan 21 First opening / closing part 22 Second opening / closing part (opening / closing part for primary air introduction)
23 3rd opening-and-closing part (opening-closing part for secondary air introduction)
24 4th opening-and-closing part 33 Hot air machine 34 Air heater 40 Humidity generator 100 Attached apparatus of laver drying room SA, SB, S1-S5 Humidity sensor T1-T5 Space (part)
m Raw nori

Claims (2)

The fresh laver is made on the reed held by the reed holder, and the fresh laver is dehydrated in the dewatering unit, and then the fresh laver is dried while transporting the reed holder to the drying chamber. An attached device of a laver drying chamber in the laver production device,
A first chamber located on the drying chamber; a first opening / closing unit and a fan for discharging secondary air blown up from the drying chamber to the first chamber; and a side portion of the first chamber. A second chamber that communicates with the first chamber and into which secondary air is introduced from the first chamber, and a second opening / closing portion for introducing primary air from the outside into the second chamber, and is mixed in the second chamber. An apparatus for attaching a laver drying chamber, wherein the mixed gas of primary air and secondary air is heated by an air heater and sent to the lower portion of the drying chamber. By providing a plurality of the second opening / closing portions in the longitudinal direction of the drying chamber, the second chamber is divided into a plurality of spaces along the longitudinal direction, and a humidity sensor is provided in each of these spaces. 2. The attachment device for a laver drying chamber according to claim 1, wherein opening and closing of the second opening and closing part is controlled independently of each other.

Images