JP2018109454A - Rotary disc-type dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a rotary disc-type dryer with a simple structure, which can discharge a nonvolatile component appropriately.SOLUTION: A rotary disc-type dryer includes: a disk 120 which has drying surfaces 122; a driving device for rotating the disk 120; a heat medium feeder which supplies a heating-medium oil to the inside of the disk 120; a discharging device for discharging an object to be dried, to the drying surfaces 122; scraper devices 200 for scraping a nonvolatile component of the object remained on the drying surfaces; and a recovery shute for collecting the nonvolatile component scraped by the scraper devices 200.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a rotating disk type drying apparatus.

  Conventionally, a rotating disk type drying apparatus as described in Patent Documents 1 and 2 is known. The rotating disk type drying apparatus includes a drying apparatus main body, a disk provided inside the drying apparatus main body, a drive device that rotates the disk, a steam supply device that supplies steam for increasing the temperature of the disk, and a disk. A discharge device that discharges an object to be dried is provided.

  The material to be dried discharged to the disk is dried by the disk heated to high temperature with the steam supplied from the steam supply device, and separated into a volatile component and a non-volatile component. Volatile components are discharged to the outside of the drying apparatus main body and condensed by a condenser. On the other hand, non-volatile components remaining on the disk are scraped off by a scraper. The non-volatile component scraped off by the scraper falls on a recovery chute that constitutes a part of the drying apparatus main body, and is discharged to the outside of the drying apparatus main body through the recovery chute.

Special table 2004-508930 JP 2006-220371 A

  Conventional rotary disk type drying apparatuses mainly use high-temperature and high-pressure steam (for example, water vapor) to increase the temperature of the disk. However, in order to supply high-temperature and high-pressure steam into the dryer main body, complicated piping equipment is required, and as a result, the structure of the rotating disk type dryer is complicated.

  Further, in the conventional rotating disk type drying apparatus, when the non-volatile component generated after processing the object to be dried is highly viscous, the non-volatile component is not properly discharged, resulting in clogging and hindering continuous operation. There was a thing. That is, if it is a non-volatile component with low viscosity, after it is scraped off by a scraper, it is quickly dropped by the dead weight onto the recovery chute and discharged. On the other hand, non-volatile components with high viscosity, after being scraped off by the scraper, do not fall quickly due to their own weight, but wrap around the scraper while clumping up on the scraper, and may fall to a location different from the recovery chute. It was.

  An object of one embodiment of the present invention is to realize a rotating disk type drying apparatus having a simple structure capable of appropriately discharging nonvolatile components.

  A rotating disk type drying apparatus according to an embodiment of the present invention includes a disk having a drying surface, a driving device that rotates the disk, a heat medium supply device that supplies heat medium oil to the inside of the disk, and the drying surface. A discharge device for discharging the material to be dried, a scraper device for scraping off the non-volatile components of the material to be dried remaining on the drying surface, and a recovery chute for recovering the non-volatile components scraped by the scraper device; .

  According to one embodiment of the present invention, it is possible to realize a rotating disk type drying apparatus having a simple structure capable of appropriately discharging nonvolatile components from an object to be dried by a disk heated to a high temperature by heat medium oil.

FIG. 1 is a block wiring diagram of the rotating disk type drying apparatus of the present embodiment. FIG. 2 is a view for explaining the configuration of the scraper device and the first recovery assisting member of the present embodiment. FIG. 3 is a view for explaining a pressing plate driving mechanism of the rotating disk type drying apparatus of the present embodiment. FIG. 4 is a schematic diagram for explaining that the first recovery assisting member prevents the non-volatile component from entering the back side of the scraper device. FIG. 5 is a view for explaining the configuration of the second recovery assisting member of the rotating disk type drying apparatus of the present embodiment. FIG. 6 is a view for explaining the configuration of the second recovery assisting member of the rotating disk type drying apparatus of the present embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same reference numerals are given to components that exhibit the same or similar functions, and duplicate descriptions are omitted.

<Rotating disk type dryer>
FIG. 1 is a block wiring diagram of the rotating disk type drying apparatus of the present embodiment. As shown in FIG. 1, a rotating disk type drying apparatus 1000 is provided in a drying apparatus main body 110 for performing a drying process of an object to be dried (for example, a cleaning solvent for an adhesive), and the drying apparatus main body 110 And a disk 120 fixed to the rotating shaft 124. Further, the rotating disk type drying apparatus 1000 includes a driving device 130 that rotates the disk 120 by rotating the rotating shaft 124, and a heat medium supply device 140 that supplies heat medium oil to the inside of the disk 120. In the present embodiment, the object to be dried is described as an example of a cleaning solvent for an adhesive, but the present invention is not limited thereto, and may be substantially volatile, such as a chemical. It may be liquid or oily.

  The inside of the drying apparatus main body 110 is formed as a drying space (heat exchange space) 112. The rotating disk type drying apparatus 1000 according to the present embodiment is of a type that heats the disk 120 with heat transfer oil supplied from the heat medium supply apparatus 140 to the inside of the disk 120, thereby drying the object to be dried. In the rotating disk type drying apparatus 1000 of the present embodiment, one disk 120 is fixed to the rotating shaft 124, but the present invention is not limited to this, and a plurality of disks may be fixed to the rotating shaft 124 in parallel with each other. . The disk 120 is a metal body, such as stainless steel, steel, titanium alloy, etc., whose material is excellent in corrosion resistance, high in specific heat, and excellent in thermal conductivity. The disk 120 is formed in a disk shape, and a space for supplying heat transfer oil is formed inside the disk 120. The disk 120 has a drying surface 122 that is dried by heating an object to be dried.

  The heat medium supply device 140 includes a heater that heats the heat medium oil. The heat transfer oil heated by the heater is guided to the inside of the drying apparatus main body 110 through the pipe 142, injected into the rotating shaft 124 through the rotary joint or the like, and guided to the inside of the disk 120. The heat transfer oil that has exchanged heat with the object to be dried on the drying surface 122 of the disk 120 is circulated to the heat transfer medium supply device 140 via the pipe 144. By using the heat medium oil as the heat medium as in the present embodiment, the rotary disk type drying apparatus 1000 can be realized with a simple structure. That is, the conventional rotating disk type drying apparatus generally uses high-temperature and high-pressure steam (for example, water vapor) as a heat medium. In this case, since complicated piping equipment for supplying high-temperature and high-pressure steam into the drying apparatus main body is required, the structure of the apparatus becomes complicated. On the other hand, in this embodiment, complicated piping equipment is not required by using heat transfer oil as a heat transfer medium, so that the rotating disk type drying apparatus 1000 can be realized with a simple structure.

  Inside the drying apparatus main body 110, a discharge device 150 that discharges an object to be dried onto the drying surface 122 of the disk 120 is provided. The lower part of the drying apparatus main body 110 is a tank 114 that stores a stock solution that is a liquid to be dried. The tank 114 is formed as a part of the drying apparatus main body 110. A raw material drum 155 for storing raw materials is installed outside the drying apparatus main body 110. The raw material stored in the raw material drum 155 is supplied to the raw liquid tank 156 via the pump 153. The stock solution stored in the stock solution tank 156 is supplied to the tank 114 via the pump 158. The tank 114 is provided with detection means 116 for detecting the water level. When the water level falls and the stock solution in the tank 114 is insufficient, the detection means 116 detects the position and activates the pump 158. As a result, the shortage of stock solution is replenished from the stock solution tank 156 to the tank 114.

  A predetermined amount of stock solution is always automatically stored in the tank 114 while maintaining a constant water level. The stock solution stored in the tank 114 is fed by the pump 152, and a part of the stock solution is guided to the discharge device 150. The stock solution guided to the discharge device 150 is sprayed onto the drying surface 122 of the disk 120. The excess stock solution sent by the pump 152 is returned to the tank 114 through the path 154.

  The disk 120 is heated to high temperature by the heat transfer oil and rotates in the direction of the arrow. A part of the stock solution discharged to the drying surface 122 of the disk 120 hangs down on the drying surface 122 and falls and is collected in the tank 114. On the other hand, the undiluted solution sprayed on the disk 120 is heated by the disk 120 to evaporate the easily evaporated liquid substance such as an organic solvent and moisture. As a result, substantially only solid matter remains on the dry surface 122 of the disk 120. An appropriate amount of the stock solution to be supplied to the disk 120 can be calculated or experimentally obtained.

  The evaporated volatile component is exhausted to the outside of the drying apparatus main body 110 through an exhaust port 118 formed in the drying apparatus main body 110. The exhausted volatile component is guided to the condenser 194 through the pipe 192. Since the refrigerant such as cooling water flows through the condenser 194, the volatile components are condensed by exchanging heat in the condenser 194. The condensed liquid is guided to the separator 198 through the pipe 196. The separator 198 is connected to a vacuum pump 190 (pressure reduction device), and is evacuated by the vacuum pump 190.

  The design conditions of the disk 120 that accompany heat transfer include the material of the disk 120, the rotational speed of the disk 120, the thickness and diameter of the disk 120, the adhesion thickness of the object to be dried, the thermal conductivity of the disk 120, the heat of the object to be dried. It is determined by conditions such as conductivity, heat transfer coefficient between the disk 120 and the object to be dried. While the disk 120 is sprayed with the stock solution and rotates more than half a circle, the non-volatile components of the stock solution are substantially solidified. The rotating disk type drying apparatus 1000 includes a scraper device 200 that scrapes the non-volatile components remaining on the drying surface 122 in contact with the drying surface 122. Details of the scraper device 200 will be described later.

  A recovery chute 170 for recovering non-volatile components scraped by the scraper device 200 is provided below the scraper device 200. The collection chute 170 is a cylindrical member formed as a part of the drying apparatus main body 110 and is provided adjacent to the tank 114. A gutter member 180 is provided on the inner wall of the collection chute 170. The eaves member 180 is a member for receiving a liquid (for example, an organic solvent or water) generated by condensation or the like inside the drying apparatus main body 110. The liquid collected by the flange member 180 is returned to the tank 114.

  The lower end of the collection chute 170 is connected to a collection pipe 172, and the collection pipe 172 is a pipe extending in the vertical direction and connected to the drum can 174. The non-volatile composition scraped off by the scraper device 200 falls to the recovery chute 170 by its own weight and is recovered to the drum can 174 via the recovery pipe 172.

  The rotary disk type drying apparatus 1000 includes the vacuum pump 190 described above as a decompression device that decompresses the interior of the drying apparatus main body 110 from the atmospheric pressure when drying an object to be dried. In the rotating disk type drying apparatus 1000 of this embodiment, the upper part of the drying apparatus main body 110 and the recovery pipe 172 are connected to the vacuum pump 190. When the object to be dried is heated, the vacuum pump 190 is driven and evacuated, whereby the inside of the drying apparatus main body 110 is depressurized from the atmospheric pressure. When the inside of the drying apparatus main body 110 is depressurized from the atmospheric pressure, the boiling point of the material to be dried is lowered, so that the drying process can be promoted. In addition, by reducing the pressure inside the drying apparatus main body 110 from the atmospheric pressure, it is possible to suppress the matter to be dried inside the drying apparatus main body 110 from leaking outside the drying apparatus main body 110.

  In addition, the rotating disk type drying apparatus 1000 performs a drying process on an object to be dried in an inert atmosphere. That is, the rotating disk type drying apparatus 1000 supplies nitrogen (N 2) to the inside of the drying apparatus main body 110. When the rotating disk type drying apparatus 1000 performs the drying process of the object to be dried, nitrogen is supplied to the drying apparatus body 110 via the upper part of the drying apparatus body 110, the side of the drying apparatus body 110, and the recovery pipe 172. Supply. Thereby, the inside of the drying apparatus main body 110 becomes an inert atmosphere. The rotating disk type drying apparatus 1000 can safely perform the drying process by setting the inside of the drying apparatus main body 110 to an inert atmosphere.

<Scraper device>
Next, details of the scraper device 200 will be described. FIG. 2 is a view for explaining the configuration of the scraper device and the first recovery assisting member of the present embodiment. FIG. 3 is a view for explaining a pressing plate driving mechanism of the rotating disk type drying apparatus of the present embodiment.

  As shown in FIG. 2, the scraper device 200 is provided in a pair with the disc 120 interposed therebetween. The scraper device 200 includes a scraper blade 210 for contacting the drying surface 122 of the disk 120 and scraping off non-volatile components. The scraper blade 210 is fixed to a scraper blade fixing member 212. The scraper blade fixing member 212 is rotatable around a rotation shaft 216 provided on a base 214 fixed to the drying apparatus main body 110. As the scraper blade fixing member 212 rotates around the rotation shaft 216, the scraper blade 210 can move in a direction toward and away from the drying surface 122.

  As shown in FIGS. 2 and 3, the scraper device 200 includes a pressing plate 220 for pressing the scraper blade 210 against the drying surface 122. A fluororesin sheet 222 is attached to the surface of the pressing plate 220 (the upstream surface in the rotational direction of the disk 120). The presser plate 220 moves forward and backward by the presser plate driving mechanism 230 in a direction approaching and moving away from the base 214.

  As shown in FIG. 3, the presser plate drive mechanism 230 includes an air cylinder 232 and a first rod 234 connected to the air cylinder 232. The air cylinder 232 is provided outside the drying apparatus main body 110. The first rod 234 has a first end 234 a connected to the air cylinder 232 and a second end 234 b protruding into the interior of the drying apparatus main body 110. The presser plate drive mechanism 230 includes an L-shaped link 236 connected to the first rod 234 and a second rod 238 connected to the L-shaped link 236. The L-shaped link 236 has a first end 236 a connected to the second end 234 b of the first rod 234 via a connecting shaft 235, and a second end 236 b connected to the second rod 238. In the L-shaped link 236, a corner portion 236 c between the first end portion 236 a and the second end portion 236 b is supported by the drying apparatus main body 110 via the rotation shaft 239. The L-shaped link 236 is rotatable around the rotation shaft 239. The second rod 238 has a first end 238 a connected to the second end 236 b of the L-shaped link 236 via a connecting shaft 237, and a second end 238 b connected to the presser plate 220.

  When performing the drying process of the material to be dried, the air cylinder 232 presses the first rod 234 in the direction of protruding into the inside of the drying apparatus main body 110 by air pressure. When the first rod 234 is pressed, the L-shaped link 236 connected to the first rod 234 rotates around the rotation shaft 239 from the first position indicated by the broken line toward the second position indicated by the solid line. To do. When the L-shaped link 236 rotates, the second rod 238 connected to the L-shaped link 236 moves backward to move the presser plate 220 from the first position indicated by the broken line toward the second position indicated by the solid line.

  As shown in FIG. 2, when the presser plate 220 is moved in the direction of the base 214 by the presser plate driving mechanism 230, the contact surface 220a formed at the end of the presser plate 220 contacts the scraper blade 210, and the scraper blade 210 is rotated around the rotation axis 216. As a result, the scraper blade 210 rotates in a direction approaching the drying surface 122 of the disk 120 and comes into contact with the drying surface 122. When the scraper blade 210 comes into contact with the drying surface 122, the non-volatile components of the object to be dried remaining on the drying surface 122 are scraped off by the scraper blade 210.

  On the other hand, when the drying process is not performed on the object to be dried, the air cylinder 232 releases the pressing of the first rod 234. Accordingly, the first rod 234 moves in the direction toward the outside of the drying apparatus main body 110, and the L-shaped link 236 connected to the first rod 234 rotates from the second position toward the first position. Then, the second rod 238 connected to the L-shaped link 236 presses the presser plate 220 from the second position toward the first position. When the presser plate 220 moves away from the base 214, the contact surface 220 a of the presser plate 220 moves away from the scraper blade 210, and thereby the scraper blade 210 rotates in a direction away from the drying surface 122 of the disk 120.

<Recovery auxiliary member>
Next, a collection assisting member for assisting discharge of the non-volatile components scraped by the scraper device 200 will be described. When the material to be dried is, for example, a cleaning solvent for an adhesive, the non-volatile component generated after the material to be dried has a relatively high viscosity. In such a case, the rotating disk type drying apparatus 1000 may not properly discharge the non-volatile components, causing clogging and hindering continuous operation. That is, the non-volatile component having a low viscosity is scraped off by the scraper device 200 and then quickly falls on the recovery chute 170 by its own weight and is recovered in the drum can 174. On the other hand, the non-volatile component with high viscosity is scraped off by the scraper device 200 and then does not fall quickly due to its own weight, but wraps around the scraper device 200 while becoming a lump on the scraper device 200, and is different from the recovery chute 170. There was a case where it dropped into a place, for example, the tank 114. In addition, even if the non-volatile component having high viscosity falls on the recovery chute 170, it may adhere to the inner wall of the recovery chute 170 or the flange member 180, thereby hindering rapid recovery of the non-volatile component.

  Therefore, the rotating disk type drying apparatus 1000 according to the present embodiment includes a collection auxiliary member for facilitating the collection of the nonvolatile components. That is, as shown in FIG. 2, the rotary disk type drying apparatus 1000 includes a first collection auxiliary member 300 for guiding the non-volatile components scraped by the scraper apparatus 200 to the collection chute 170. The first recovery assisting member 300 is formed in a plate shape extending from the end fixed to the base 214 along the drying surface 122 of the disk 120 and faces the drying surface 122 across the scraper device 200. 310. In other words, the facing surface 310 is opposed to the drying surface 122 with a portion (a portion where the scraper device 200 and the drying surface 122 are in contact) scraping off the non-volatile components by the scraper device 200. The facing surface 310 is formed so as to receive the non-volatile component scraped by the scraper device 200 and guide the non-volatile component received to the recovery chute 170. In the present embodiment, a fluororesin sheet 312 is attached to the facing surface 310. In addition, it is not limited to sticking the fluororesin sheet | seat 312 to the opposing surface 310, The process which makes a non-volatile component slip easily on the opposing surface 310 like a fluororesin process should just be given.

  FIG. 4 is a schematic diagram for explaining that the first collection assisting member 300 prevents the non-volatile component from entering the back side of the scraper device 200. As shown in FIG. 4, when the viscosity of the non-volatile component is high, the non-volatile component 500 is scraped off by the scraper blade 210, and then does not quickly fall off due to its own weight, and is formed into a lump on the outer peripheral side (dry surface) In a direction away from 122). If the first recovery assisting member 300 is not provided, the non-volatile component 500 may flow to the outermost periphery of the presser plate 220, wrap around the back side of the presser plate 220, and fall on the back side of the presser plate 220 due to its own weight. In this case, the non-volatile component 500 may drop into the tank 114 and hinder continuous operation of the rotary disk type drying apparatus 1000.

  On the other hand, in the present embodiment, as shown in FIG. 4, the non-volatile component 500 that has flowed to the outer peripheral side of the presser plate 220 while forming a lump is the facing surface 310 (fluororesin sheet 312) of the first recovery assisting member 300. Therefore, it does not go around to the back side of the presser plate 220. The non-volatile component 500 is received by the opposing surface 310 of the first recovery assisting member 300 and then falls to the recovery chute 170 by its own weight. Thereby, the rotating disk type drying apparatus 1000 of the present embodiment can appropriately discharge the nonvolatile component 500.

  Next, the configuration of the second collection assisting member will be described. 5 and 6 are diagrams for explaining the configuration of the second recovery assisting member of the rotating disk type drying apparatus of the present embodiment. FIG. 5 is an enlarged view of a cross section parallel to the disk 120 in the second recovery assisting member and its peripheral region. FIG. 6 is an enlarged view of a cross section perpendicular to the disk 120 in the second recovery assisting member and its peripheral region.

  As shown in FIGS. 5 and 6, the rotary disk type drying apparatus 1000 includes a gutter member 180 provided on the inner wall of the collection chute 170. The eaves member 180 is a member for receiving a liquid (for example, an organic solvent or water) generated by condensation or the like inside the drying apparatus main body 110. The eaves member 180 includes a bottom surface 182 that protrudes from the inner wall of the recovery chute 170 to the inside of the recovery chute 170, and a side surface 184 that rises vertically upward from an end of the bottom surface 182 that protrudes. As a result, the opening 186 is formed on the upper surface of the flange member 180. The liquid condensed inside the drying apparatus main body 110 is collected by the gutter member 180 through the opening 186. The liquid collected by the flange member 180 is returned to the tank 114.

  The rotating disk type drying apparatus 1000 includes a second collection assisting member 400 provided between the flange member 180 and the scraper device 200. The second recovery assisting member 400 is formed in a cylindrical shape having a diameter smaller than the cylindrical shape of the recovery chute 170, and has a receiving surface that receives a non-volatile component dropped from the scraper device 200. Specifically, the second collection assisting member 400 includes a first plate 410 and a second plate 420 that face each other, and a third plate 430 and a fourth plate 440 that face each other.

  The first plate 410, the second plate 420, the third plate 430, and the fourth plate 440 are respectively a first receiving surface 412, a second receiving surface 422, a third receiving surface 432, and an inner surface of the collection chute 170. A fourth receiving surface 442 is provided. The first plate 410 is provided below the presser plate 220. The first plate 410 is inclined such that its upper end 416 is located above the opening 186 of the eaves member 180 and its lower end 418 is located inside the collection chute 170 relative to the opening 186 of the eaves member 180. The second plate 420 faces the first plate 410 and is formed along the vertical direction. The third plate 430 is inclined such that its upper end 436 is located above the opening 186 of the eaves member 180 and its lower end 438 is located inside the collection chute 170 relative to the opening 186 of the eaves member 180. The fourth plate 440 is inclined so that its upper end 446 is positioned above the opening 186 of the flange member 180 and its lower end 448 is positioned inside the collection chute 170 relative to the opening 186 of the flange member 180.

  The first, second, third, and fourth receiving surfaces 412, 422, 432, and 442 are provided so as to block the path from the scraper device 200 (presser plate 220) to the opening 186 of the flange member 180. In addition, fluororesin sheets 414, 424, 434, and 444 are attached to the first, second, third, and fourth receiving surfaces 412, 422, 432, and 442, respectively. Thereby, the non-volatile component scraped and dropped by the scraper device 200 is received by the second recovery assisting member 400 without falling on the inclined inner wall surface of the recovery chute 170 or the flange member 180. The non-volatile component received by the second recovery assisting member 400 slides down along the first, second, third, and fourth receiving surfaces 412, 422, 432, 442, and is discharged to the drum can 174 through the recovery pipe 172. Is done. Therefore, the rotating disk type drying apparatus 1000 of this embodiment suppresses that the non-volatile component dropped from the scraper device 200 is caught on the inner wall of the recovery chute 170 or the flange member 180 and the recovery of the non-volatile component is hindered. be able to.

110 Drying device body 120 Disk 122 Drying surface 130 Drive device 140 Heat medium supply device 150 Discharge device 170 Recovery chute 180 Scissor member 190 Vacuum pump (decompression device)
200 Scraper device 210 Scraper blade 220 Presser plate 230 Presser plate drive mechanism 300 First recovery assisting member 310 Opposing surface 400 Second recovery assisting member 412, 422, 432, 442 First, second, third and fourth receiving surface 222 , 312, 414, 424, 434, 444 Fluororesin sheet

Claims (7)

A disc having a dry surface;
A drive for rotating the disk;
A heat medium supply device for supplying heat medium oil to the inside of the disk;
A discharge device for discharging an object to be dried onto the dry surface;
A scraper device for scraping off non-volatile components of the material to be dried remaining on the drying surface;
A recovery chute for recovering the non-volatile components scraped by the scraper device;
A rotary disk type drying apparatus comprising: The rotating disk type drying apparatus according to claim 1,
A rotary disk type drying apparatus comprising a first recovery assisting member having a facing surface that faces the drying surface across a portion where the non-volatile component is scraped off by the scraper device. The rotating disk type drying apparatus according to claim 2,
The opposing surface is formed to receive the non-volatile component scraped by the scraper device and guide it to the recovery chute.
Rotating disk type dryer. The rotating disk type drying apparatus according to claim 2 or 3,
A drying device main body for accommodating the disk, the scraper device, and the first recovery auxiliary member;
A decompression device that depressurizes the interior of the drying apparatus body from atmospheric pressure when drying the object to be dried;
Further comprising
Rotating disk type dryer. The rotating disk type drying apparatus according to any one of claims 2 to 4,
A gutter member provided on the inner wall of the recovery chute for receiving the liquid generated inside the drying apparatus body;
A second recovery assisting member provided between the flange member and the scraper device and having a receiving surface for receiving the nonvolatile component dropped from the scraper device;
Further comprising
Rotating disk type dryer. In the rotating disk type drying apparatus according to any one of claims 2 to 5,
The scraper device includes a scraper blade for contacting the drying surface and scraping off the non-volatile components, a presser plate for pressing the scraper blade against the drying surface, and a presser for driving the presser plate forward and backward. A plate driving mechanism,
Rotating disk type dryer. In the rotating disk type drying apparatus according to any one of claims 2 to 6,
At least a part of the facing surface, the receiving surface, and the presser plate is subjected to fluororesin processing, or a fluororesin sheet is attached,
Rotating disk type dryer.