Drying machine

Abstract

To secure sufficient time to form a raw material on drainboards with a sheet-forming device.SOLUTION: A drying machine (1) includes a sheet-forming device (9) for forming a raw material on drainboards (4), a dehydrator (10) for dehydrating the formed raw material, and a dryer (11) for drying the dehydrated raw material, which are disposed in this order on a conveyance path for intermittent conveying devices (6, 7, 8) for conveying the drainboards (4) by one row. In the drying machine, after the drainboards (4) are conveyed, (as a first conveyance), by one row with the intermittent conveying devices (6, 7, 8), the conveyance of the drainboards (4) are stopped; the raw material formed on the drainboards (4) by one row are dehydrated with the dehydrator (10); then, after the drainboards (4) are again conveyed (as a second conveyance), by one row with the intermittent conveying devices (6, 7, 8), the conveyance of the drainboards (4) are stopped; and the raw material formed on the drainboards (4) by one row are dehydrated with the dehydrator (10) and also the raw material is formed on the drainboards (4) of the two rows with the forming device (9).SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a dryer in which a papermaking device for papermaking raw material onto a sieve, a dewatering device for dewatering the papered raw material, and a drying device for drying the dewatered raw material are arranged in sequence on the transport path of an intermittent transport device for intermittently transporting one row of sieves. [Background technology]

[0002] Conventionally, as a dryer for drying raw materials, for example, in a seaweed manufacturing machine for producing dried seaweed, a paper making device, a dehydrating device, a drying device, and a peeling device are arranged in this order on a transport path along which an intermittent transport device transports a row of screens (seaweed screens) intermittently. The paper making device supplies seaweed raw material consisting of raw seaweed and water to the seaweed screen and paper-makes seaweed dough of a predetermined shape onto the seaweed screen. The seaweed dough is then dehydrated in the dehydrating device and dried in the drying device. The dried seaweed dough (dried seaweed) is then peeled off from the seaweed screen by a peeling device to produce dried seaweed (for example, see Patent Document 1).

[0003] In this dryer (seaweed production machine), as shown in Figure 5, the intermittent conveying device conveys one row of screens (first conveying) and then stops the screens, and the papermaking device papermakes the raw material on one row of screens. At the same time, the dewatering device dehydrates the raw material that has been papered on one row of screens, and at the same time, the peeling device peels off the dried raw material from one row of screens.

[0004] After that, the intermittent conveying device conveys one row of screens again (second conveyance), after which the screens are stopped, and the raw material is made into paper on one row of screens in the papermaking device, while at the same time, the raw material made into paper on one row of screens is dehydrated in the dewatering device, and at the same time, the dried raw material is peeled off from the one row of screens in the peeling device.

[0005] By repeatedly carrying out the above process, the raw material (seaweed raw material) is dried in large quantities. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2017-139988 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the above-mentioned conventional dryer (seaweed production machine), after the first or second transport by the intermittent transport device, dehydration, peeling, and papermaking are carried out at the same time, so there is a risk that the raw material may not be able to be properly paper-made on the sieve by the papermaking device.

[0008] In particular, when the raw material is not simply supplied to the sieve by the papermaking device, but is instead subjected to conditioning processes such as mixing and stirring the raw material before being supplied to the sieve, there is a risk that the time required for the raw material conditioning process by the papermaking device to be performed will be insufficient. [Means for solving the problem]

[0009] Therefore, in the present invention as claimed in claim 1, in a dryer in which a papermaking device for papermaking raw materials onto paper screens, a dewatering device for dewatering the papermade raw materials, and a drying device for drying the dewatered raw materials are arranged in sequence on the conveying path of an intermittent conveying device for intermittently conveying one row of screens, the intermittent conveying device conveys one row of screens (first conveying), then the screens are stopped, and the dewatering device dewaters the raw materials papermade onto one row of screens, and then the intermittent conveying device conveys another row of screens (second conveying), then the screens are stopped, and the dewatering device dewaters the raw materials papered onto one row of screens, and the papermaking device papermakes the raw materials onto two rows of screens.

[0010] In addition, in the present invention related to claim 2, in the present invention related to claim 1, the raw material is adjusted using a papermaking device after the start of the first conveyance, and the raw material is papered onto two rows of screens using the papermaking device after the second conveyance is completed.

[0011] In addition, in the present invention related to claim 3, in the present invention related to claim 2, either one of the time from the first conveyance to dehydration and the time from the second conveyance to dehydration is made longer than the other time, thereby lengthening the time for adjusting the raw material and / or papermaking in the papermaking apparatus. Effect of the Invention

[0012] The present invention provides the following advantages.

[0013] In other words, in the present invention, in a dryer in which a papermaking device for papermaking raw materials onto screens, a dewatering device for dewatering the papermade raw materials, and a drying device for drying the dewatered raw materials are arranged in sequence on the transport path of an intermittent transport device for intermittently transporting one row of screens, the intermittent transport device transports one row of screens (first transport) and then stops the screen, and the dewatering device dewaters the raw materials papermade onto one row of screens, and then the intermittent transport device transports one row of screens again (second transport) and then stops the screen, and the dewatering device dewaters the raw materials papered onto one row of screens, and the papermaking device papersheets the raw materials onto two rows of screens, this ensures that there is enough time for the papermaking device to paper the raw materials onto the screens, and the papermaking device can papersheet the raw materials onto the screens well.

[0014] In particular, if the papermaking device is configured to adjust the raw material after the start of the first conveyance, and to paper the raw material onto two rows of screens after the second conveyance is completed, sufficient time can be secured for the papermaking device to adjust the raw material, and the raw material can be papered well onto the screens by the papermaking device.

[0015] Furthermore, if either the time from the first conveyance to dehydration or the time from the second conveyance to dehydration is made longer than the other, thereby increasing the time available for the papermaking device to adjust and / or paper-make the raw material, sufficient time can be secured for the papermaking device to adjust and / or paper-make the raw material, and the papermaking device can successfully papermake the raw material onto the sieve. [Brief description of the drawings]

[0016] [Figure 1] (a) is a side view of the dryer, and (b) is a plan view of the screen (nori screen). [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] An explanatory diagram of the operation of a conventional dryer (seaweed production machine). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The specific configuration of the dryer according to the present invention will be described below with reference to the drawings. The dryer according to the present invention can be applied to various dryers used for paper-making raw materials (such as seaweed, seaweed, seafood, noodles, vegetables, fruits, salt, sludge, etc.) into a sheet on a mat and then drying the same.

[0018] 1 and 2, the dryer 1 has a front housing 2 and a rear housing 3 arranged in a front-to-rear direction. The front housing 2 and the rear housing 3 are provided with intermittent transport devices 6, 7, and 8 for intermittently transporting (repeatedly transporting (moving) the screen frame 5 a fixed distance at a time) on which a plurality of screens 4 (10 in this case) are arranged in a row in the left-right width direction and tensioned so as to be freely attached and detached.

[0019] One row of screens 4 (10 screens in this example) are transported together with the screen frame 5 by the intermittent transport device 6 of the front housing 2 from the upper front end to the upper rear end of the front housing 2, and then handed over from the intermittent transport device 6 of the front housing 2 to the upper intermittent transport device 7 of the rear housing 3. Thereafter, the screens 4 are transported together with the screen frame 5 by the upper intermittent transport device 7 of the rear housing 3 from the upper front end to the upper rear end of the rear housing 3, and then folded back downward at the upper rear end of the rear housing 3, transported from the midpoint rear end to the midpoint front end of the rear housing 3, and then handed over from the upper intermittent transport device 7 of the rear housing 3 to the lower intermittent transport device 8 at the midpoint front end of the rear housing 3 via the intermittent transport device 6 of the front housing 2. Thereafter, the screen 4 is transported together with the screen frame 5 by the intermittent transport device 8 below the rear housing 3 from the front end of the middle part of the rear housing 3 to the rear end of the middle part, then turned back downward at the rear end of the middle part of the rear housing 3, transported from the rear end of the lower part of the rear housing 3 to the front end of the lower part, and handed over again from the intermittent transport device 8 below the rear housing 3 to the intermittent transport device 6 of the front housing 2 at the front end of the lower part of the rear housing 3. Thereafter, the screen 4 is transported together with the screen frame 5 by the intermittent transport device 6 of the front housing 2 from the rear end of the lower part of the front housing 2 to the front end of the lower part of the front housing 2, then turned back upward at the front end of the lower part of the front housing 2. As a result, a transport path is formed in the dryer 1 that intermittently and continuously transports one row of screens 4 together with the screen frame 5.

[0020] On this transport path, a papermaking device 9 provided in the front housing 2, a dewatering device 10, a drying device 11 provided in the rear housing 3, and a peeling device 12 provided in the front housing 2 are arranged in this order.

[0021] Here, the papermaking apparatus 9 has a pair of front and rear raw material tanks 13, 13 storing raw materials, a pair of front and rear auxiliary material tanks 14, 14 storing auxiliary materials such as chemicals, a pair of front and rear stirring mixers 15, 15 that stir and mix the raw materials fed from each raw material tank 13 and the auxiliary materials fed from each auxiliary material tank 14, and a pair of front and rear papermaking machines 16, 16 that supply the raw materials including the auxiliary materials stirred and mixed by each stirring mixer 15 to the upper surface of the screen 4 and paper a dough of a predetermined shape. The auxiliary materials are added to the raw materials and may be chemicals such as solidifying agents, flocculants, deodorants, and preservatives added to the raw materials, or food additives such as seasonings, fragrances, and colorings.

[0022] The papermaking device 9 then adjusts the raw materials by stirring and mixing the raw materials fed from each raw material tank 13 and the auxiliary materials fed from each auxiliary material tank 14 in each stirring mixer 15, and then supplies the raw materials including the auxiliary materials to the upper surface of the screen 4 in each papermaking machine 16, and paper is papered on the screen 4 to form (papermake) a rectangular thin plate-shaped dough containing a large amount of moisture on the upper surface of the screen 4.

[0023] This papermaking device 9 is designed to simultaneously perform papermaking operations for two rows of screens 4 (the operation of feeding raw materials and auxiliary materials, the operation of stirring the raw materials and auxiliary materials, and the operation of papermaking the raw materials and auxiliary materials onto the screens 4).

[0024] The dehydrator 10 performs dehydration by pressing a water absorbent such as a sponge against the fabric that is loaded with a large amount of moisture on the upper surface of the screen 4 .

[0025] The drying device 11 dries the dough containing moisture by exposing the dough together with the basket 4 to dry air (hot air) for a predetermined period of time.

[0026] The peeling device 12 peels the dried dough from the upper surface of the screen 4.

[0027] In the dryer 1, the intermittent conveying devices 6, 7, and 8, the papermaking device 9, the dewatering device 10, the drying device 11, and the peeling device 12 are operated in conjunction with each other by a driving device 17. A control device 18 is connected to this driving device 17, and the control device 18 controls the driving of the intermittent conveying devices 6, 7, and 8, the papermaking device 9, the dewatering device 10, the drying device 11, and the peeling device 12 via the driving device 17.

[0028] The dryer 1 transports the reeds 4 together with the reed frame 5 along the transport path by the intermittent transport devices 6, 7, and 8, and after the raw material is adjusted in the papermaking device 9 (here, the raw material and auxiliary materials are fed and stirred and mixed), the raw material (including chemicals) is supplied to the upper surface of each reed 4 and papered into a dough of a predetermined shape (for example, a square), the dough is dehydrated in the dehydrator 10, the dough is forcibly dried by hot air in the drying device 11 to produce a dried dough, the dried dough is peeled off from each reed 4 by the peeling device 12, and then the reeds 4 together with the reed frame 5 are transported again to the papermaking device 9. In this way, the dryer 1 continuously dries the raw material and produces a large amount of dried dough.

[0029] In this dryer 1, the driving shaft 19 of the driving device 17 is linked to the conveying shafts 20 of the intermittent conveying devices 6, 7, and 8, the papermaking shaft 21 of the papermaking device 9, the dewatering shaft 22 of the dewatering device 10, and the peeling shaft 23 of the peeling device 12, so that one rotation of the driving shaft 19 causes the conveying shaft 20, the dewatering shaft 22, and the peeling shaft 23 to rotate once, and two rotations of the driving shaft 19 cause the papermaking shaft 21 to rotate once. The intermittent conveying devices 6, 7, and 8, the papermaking device 9, the dewatering device 10, and the peeling device 12 perform their respective operations (conveying operation, papermaking operation, dewatering operation, peeling operation) by the rotation of the conveying shaft 20, the papermaking shaft 21, the dewatering shaft 22, and the peeling shaft 23.

[0030] Here, the intermittent conveying devices 6, 7, 8 are configured to perform an operation (conveying operation) of conveying one row of lattice screens 4 (lattice frames 5) a predetermined distance while the driving main shaft 19 rotates once and the conveying main shaft 20 rotates once.

[0031] In addition, the dewatering device 10 and the peeling device 12 are configured to perform one operation (dewatering operation and peeling operation) (for one row of screens 4) while the dewatering shaft 22 and the peeling shaft 23 rotate once when the drive shaft 19 rotates once.

[0032] Furthermore, in the papermaking device 9, when the drive shaft 19 rotates twice, the interlocking cam mechanism 24 performs one operation (for two rows of screens 4) during one rotation of the papermaking main shaft 21 (papermaking operations (the operation of feeding raw materials and auxiliary materials, the operation of mixing the raw materials and auxiliary materials, and the operation of papermaking the raw materials and auxiliary materials onto the screens 4)).

[0033] In this way, in the dryer 1, the dewatering device 10 and the peeling device 12 perform dewatering and peeling operations while the drive shaft 19 makes one rotation, while the papermaking device 9 performs papermaking operations while the drive shaft 19 makes two rotations.

[0034] As shown in FIG. 3, in the dryer 1, the control device 18 drives the drive device 17 to rotate the drive main shaft 19, and during the first rotation of the drive main shaft 19 (the rotation angle of the drive main shaft 19 is 0 to 360 degrees), the intermittent conveying devices 6, 7, and 8 perform a conveying operation to convey one row of screens 4 (screen frames 5) a predetermined distance in a time period when the rotation angle of the drive main shaft 19 is between 10 and 140 degrees, the dewatering device 10 performs a dewatering operation to simultaneously dewater one row of screens 4 in a time period when the rotation angle of the drive main shaft 19 is between 180 and 280 degrees, and the peeling device 12 performs a peeling operation to simultaneously peel off one row of screens 4 in a time period when the rotation angle of the drive main shaft 19 is between 180 and 280 degrees.

[0035] In addition, in the dryer 1, the control device 18 drives the drive device 17 to rotate the drive main shaft 19, and during the second rotation of the drive main shaft 19 (when the rotation angle of the drive main shaft 19 is 360 to 720 degrees), the intermittent conveying devices 6, 7, and 8 perform a conveying operation to convey one row of screens 4 (screen frames 5) a predetermined distance in a time period when the rotation angle of the drive main shaft 19 is between 370 and 500 degrees, the dewatering device 10 performs a dewatering operation to simultaneously dewater one row of screens 4 in a time period when the rotation angle of the drive main shaft 19 is between 540 and 640 degrees, and the peeling device 12 performs a peeling operation to simultaneously peel off one row of screens 4 in a time period when the rotation angle of the drive main shaft 19 is between 540 and 640 degrees.

[0036] On the other hand, in the dryer 1, the control device 18 drives the drive device 17 to rotate the drive main shaft 19, and during the first and second rotations of the drive main shaft 19 (the rotation angle of the drive main shaft 19 is 0 to 720 degrees), the papermaking device 9 performs an input operation of inputting raw materials and auxiliary materials from the raw material tank 13 and auxiliary material tank 14 to the stirrer mixer 15 when the rotation angle of the drive main shaft 19 is between 95 and 280 degrees, the papermaking device 9 performs an agitation operation of agitating and mixing the raw materials and auxiliary materials using the agitator mixer 15 when the rotation angle of the drive main shaft 19 is between 280 and 500 degrees, and the papermaking device 9 performs a papering operation of papering the raw materials and auxiliary materials into two rows of screens 4 using the papermaking machine 16 when the rotation angle of the drive main shaft 19 is between 540 and 640 degrees.

[0037] The dryer 1 continuously performs the above operations (the conveying operation, the paper-making operation, the dewatering operation, the drying operation, and the peeling operation, which are performed while the rotation angle of the driving main shaft 19 is between 0 and 720 degrees).

[0038] In this manner, in the dryer 1, the intermittent conveying devices 6, 7, and 8 convey the screens 4 by one row (first conveying), and then the screens 4 are stopped, and the dewatering device 10 dehydrates the raw material that has been papered onto one row of screens 4, while the peeling device 12 peels off the dried raw material from one row of screens 4. Then, the intermittent conveying devices 6, 7, and 8 convey the screens 4 by one row again (second conveying), and then the screens 4 are stopped, and the dewatering device 10 dehydrates the raw material that has been papered onto one row of screens 4, while the peeling device 12 peels off the dried raw material from one row of screens 4. Furthermore, the papermaking device 9 paper-makes the raw material onto two rows of screens 4.

[0039] Moreover, in the dryer 1, after the start of the first conveyance, the papermaking device 9 performs a raw material adjustment process (feeding in the raw materials and auxiliary materials, and mixing the raw materials and auxiliary materials), and after the end of the second conveyance, the papermaking device 9 performs papermaking of the raw materials onto two rows of screens 4 (papering the raw materials and auxiliary materials onto the screens 4).

[0040] In this dryer 1, the control device 18 rotates the drive shaft 19 of the drive device 17 at a constant speed, so that the time required for the first operation (operation performed when the rotation angle of the drive shaft 19 is between 0 and 360 degrees) and the time required for the second operation (operation performed when the rotation angle of the drive shaft 19 is between 360 and 720 degrees) are the same. However, this is not limited to this, and the control device 18 can, for example, control the rotation speed of the drive shaft 19 of the drive device 17 to make the time required for the first operation (operation performed when the rotation angle of the drive shaft 19 is between 0 and 360 degrees) and the time required for the second operation (operation performed when the rotation angle of the drive shaft 19 is between 360 and 720 degrees) different, and either one of the time from the first conveyance to dehydration or the time from the second conveyance to dehydration can be made longer than the other, thereby lengthening the time for adjusting the raw material and / or papermaking in the papermaking device 9.

[0041] For example, as shown in Fig. 4, the control device 18 can control the rotation speed of the drive main shaft 19 of the drive device 17 to be slow for the time when the rotation angle of the drive main shaft 19 is between 540 and 640 degrees, so that the time from the second conveyance to dewatering is longer than the time from the first conveyance to dewatering, thereby lengthening the time for the papermaking device 9 to perform the papermaking operation. Note that the control device 18 can also control the rotation speed of the drive main shaft 19 of the drive device 17 to be slow for the time when the rotation angle of the drive main shaft 19 is between 180 and 280 degrees, so that the time from the first conveyance to dewatering is longer than the time from the second conveyance to dewatering, thereby lengthening the time for the adjustment operation in the papermaking device 9.

[0042] As described above, the dryer 1 is configured such that a papermaking device 9 for papermaking the raw material onto the screens 4, a dewatering device 10 for dewatering the paper-made raw material, and a drying device 11 for drying the dewatered raw material are arranged in sequence on the transport path of intermittent transport devices 6, 7, and 8 for intermittently transporting one row of screens 4.

[0043] Moreover, the dryer 1 is configured such that the intermittent conveying devices 6, 7, and 8 convey the screens 4 by one row (first conveying), then stop the screens 4, and the dewatering device 10 dehydrates the raw material that has been papered onto one row of screens 4, and then the intermittent conveying devices 6, 7, and 8 convey the screens 4 by one row again (second conveying), then stop the screens 4, and the dewatering device 10 dehydrates the raw material that has been papered onto one row of screens 4, and the papermaking device 9 paper-makes the raw material onto two rows of screens 4.

[0044] Therefore, in the dryer 1 having the above-mentioned configuration, a sufficient time can be ensured for the papermaking device 9 to paper-make the raw material onto the sieve 4, and the papermaking device 9 can paper-make the raw material onto the sieve 4 satisfactorily.

[0045] In addition, the dryer 1 is configured so that after the start of the first conveyance, the raw material is adjusted in the papermaking device 9, and after the end of the second conveyance, the raw material is paper-made onto two rows of screens 4 in the papermaking device 9.

[0046] Therefore, in the dryer 1 having the above-mentioned configuration, a sufficient time can be ensured for the raw material conditioning process by the papermaking device 9, and the raw material can be satisfactorily paper-made on the sieve 4 by the papermaking device 9.

[0047] In addition, the dryer 1 is configured so that either one of the times from the first conveyance to dehydration or the time from the second conveyance to dehydration is longer than the other, thereby lengthening the time for the raw material conditioning process and / or papermaking in the papermaking device 9.

[0048] Therefore, in the dryer 1 having the above configuration, it is possible to ensure more sufficient time for the raw material conditioning process and / or papermaking by the papermaking device 9, and the raw material can be well paper-made on the sieve 4 by the papermaking device 9. [Explanation of symbols]

[0049] 1 Dryer 2 Front housing 3 Rear case 4 Screen 5. Frame 6,7,8. Intermittent conveying device 9 Paper making equipment 10 Dehydration equipment 11 Drying device 12 Peeling device 13 Raw material tank 14 Sub-material tank 15 Stirring mixer 16 Paper making machine 17 Drive unit 18 Control unit 19 Drive shaft 20 Conveying shaft 21 Paper-made spindle 22 Dehydration spindle 23 Peeling spindle 24 Interlocking cam mechanism

Claims

1. A dryer in which a papermaking device for papermaking a raw material on a sieve, a dewatering device for dewatering the paper-made raw material, and a drying device for drying the dewatered raw material are sequentially arranged on a conveying path of an intermittent conveying device for intermittently conveying one row of sieves, This dryer is characterized in that the intermittent conveying device conveys the screen by one row (first conveying), then stops the screen, the dewatering device dehydrates the raw material paper-made on the one row of screens, and then the intermittent conveying device conveys the screen by one row again (second conveying), then stops the screen, the dewatering device dehydrates the raw material paper-made on the one row of screens, and the paper-making device paper-makes the raw material on two rows of screens.

2. The dryer according to claim 1, characterized in that after the start of the first conveying, the raw material is adjusted in a papermaking device, and after the end of the second conveying, the raw material is paper-made onto two rows of screens in the papermaking device.

3. A dryer as described in claim 2, characterized in that either one of the times from the first conveyance to dehydration and the time from the second conveyance to dehydration is made longer than the other time, thereby lengthening the time for adjusting the raw material and / or papermaking in the papermaking device.

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