JP6348046B2 - Vertical vibration dryer and vibration drying method - Google Patents

Description

  The present invention relates to a vertical vibration dryer used for processing to obtain a product from a liquid-containing raw material through a filtration step and a drying step using a vertical vibration dryer in which a plate-shaped filter medium is arranged in a processing container, and the same It relates to the vibration drying method used. Here, the case where the form of the product is in the form of powder (hereinafter referred to as “powder”) is mainly taken as an example, but the present invention is also applied to the case of granules, pellets (granulated bodies), and even short fibers. Is possible.

  In order to obtain a powdered product from a liquid-containing raw material such as a slurry, the filtration step and the drying step are usually performed by separate devices.

  However, when performed in a separate apparatus, contamination (contamination) due to contamination / contamination of impurities (foreign matter) and oxidation deterioration due to contact with air are likely to occur during the transition from the filtration step to the drying step.

  Further, when the slurry contains harmful substances, problems of working environment and air pollution are likely to occur, and another equipment and equipment for preventing them are required.

  In order to solve these problems, Patent Literature 1 proposes a filtration and drying apparatus having the following configuration (see claim 1 and the like).

  “A filtration and drying apparatus equipped with a temperature adjusting means for filtering and separating solids in a slurry and drying them, and a barrel portion having upper and lower end surfaces as opening surfaces, and upper and lower opening surfaces of the barrel portions. A filter medium arranged so as to cover each other and separating solids in the slurry by filtration, a slurry supply port and a dry solid discharge port on the barrel, and an upper opening surface of the barrel are detachably covered. An upper lid, and a lower lid that is detachably placed on the lower opening surface of the body portion, and the upper lid and the lower lid each discharge a filtrate that has passed through the filter medium, and a nozzle that is used for supplying and exhausting a drying gas. And a vibration generating means that vibrates the combination of the body portion, the filter medium, and the upper lid and the lower lid. ”

  However, since the filtration and drying apparatus sucks both sides of the upper and lower filter media, it is considered that a pressure difference between both sides of the upper and lower filter media is unlikely to occur. That is, the pressure difference is easily canceled between the upper and lower filter media and the pressure difference is easily offset. For this reason, it is difficult to obtain a high filtration rate.

  In addition, since the filter cake (cake) deposited on the lower filter medium is not dropped by filtration, the filter cake on the lower filter medium is not easily crushed (particularly, particles have adhesiveness and have high solidification strength). In the case of cake), it is difficult to obtain good crushing and drying efficiency by vibration.

  Furthermore, it is necessary to set the lower end of the product discharge port higher than the position of the upper surface of the lower filter medium, and there is a step between the upper surface of the lower filter medium and the lower end of the product discharge port, and the product tends to remain on the lower filter medium when the product is discharged. For this reason, when various raw materials are to be processed in batches, product contamination (contamination) tends to occur when the raw materials are changed.

  Further, when the heating temperature is increased from the standpoint of drying efficiency and the like in the drying process, the product is likely to undergo heat alteration. At this time, it is conceivable that the inside of the processing container is reduced in pressure (vacuum), but energy efficiency is not good because it is necessary to perform drying with another apparatus.

  For these reasons, it was not desirable when the product wanted to avoid chemical contamination and alteration as much as possible.

  Although not affecting the patentability of the present invention, as a device capable of filtering and drying with one dryer, a filter dryer having the following configuration is proposed in Patent Document 2 (claims, (See Figures 1 and 2).

  “To a cylindrical main body having a stirring blade inside, a filter medium is attached inside the peripheral wall, and the main body supports the filter medium so that it can be rotated between a position above and a position below. A filtration dryer configured to filter the slurry in a state where the filter medium is below and to dry in a state where the filter medium is above. "

  In this device, the processing container (cylindrical main body) is not bowl-shaped, and the cake formed on the filter medium is dried by jacket heating, but the crushing at that time is performed by a stirring blade. Is.

  Further, the invention related to the prior application “Japanese Patent Application No. 2014-122182 (unpublished at the time of filing)” of the applicant of the present invention (hereinafter referred to as “unpublished at the time of filing”) regarding the invention related to the vertical vibration dryer and the vibration drying method for solving the same problems as the present invention "Invention of prior application"). As will be described later, the present invention and the prior invention are different in that the reversing mechanism (reversing means) of the vertical vibration dryer includes a non-rotating shaking table that supports the processing vessel. Therefore, it cannot be said that both inventions are the same, and the present application is not rejected by the provisions of Article 39, Paragraph 1 of the Patent Act.

Japanese Patent Laid-Open No. 2003-80011 Japanese Patent Publication No.52-17898

  In view of the above, the present invention has a novel configuration of vertical vibrations that can efficiently generate and disintegrate / vibrate by filtration of liquid-containing raw materials in a processing vessel and are less susceptible to contamination and alteration of products. An object is to provide a dryer and a vibration drying method.

  The vertical vibration dryer according to the present invention solves the above problems with the following configuration.

A vertical vibration dryer used to produce a product through a filtration process and a drying process in a processing container in which a plate-shaped filter medium is arranged,
The integrated vibration part structure including the processing container and the vibration means is supported via an elastic support disposed on the stationary part structure, and includes a reversing mechanism of the processing container.
The reversing mechanism has a pair of reversing shafts projecting outward from both sides of the processing container, and a bearing member that is supported by the elastic support member so as not to rotate and supports the reversing shaft to support the processing container. A reversal drive unit connected to one of the reversing shafts (driven-side reversing shaft) is provided.

The vibration drying method according to the present invention is a vibration drying method for obtaining a product from a liquid-containing raw material through a filtration step and a drying step using the vibration drying device having the above-described configuration,
A filtration step of depositing filter cake on the filter medium after charging the liquid-containing raw material from the raw material input port formed on the bottom side, by inverting the processing container and turning it upside down, and
The method further includes a drying step in which the processing container is inverted again to be in an upright state, and the filter cake is dropped on a drying processing unit on the bottom side of the processing container to perform a vibration drying process.

It is a flowchart at the time of drying in the vibration drying method concerning the present invention (schematic front half sectional view of a main part). It is a 2-2 arrow directional view of the vertical vibration dryer in FIG. It is a partial omission 3-3 line arrow view similarly. It is a principal part exploded perspective view similarly. It is a flow figure at the time of filtration in the vibration drying method concerning the present invention (schematic front half sectional view of a main part).

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, up and down (bottom surface and ceiling) are based on the upright position (upright state) unless otherwise specified (reference to FIG. 1).

  The vertical vibration dryer D of the present embodiment uses the liquid-containing raw material (object to be processed) as a product through a filtration process and a drying process in the processing container 11 in which the plate-shaped filter medium 10 is arranged. In addition, an integrated vibration part structure including the processing container 11 and the vibration motor (vibration means) 12 is supported via an elastic support 14 disposed on the stationary part structure (base body 17). In addition, it is assumed that a reversing mechanism for the processing container 11 is provided.

  The processing container 11 is usually provided with heating means or heating means so as to promote drying, and in order to promote filtration, a difference that generates a differential pressure in both side spaces of the filter medium 10 when the processing container 11 is inverted. A pressure generating means can be connected.

  The processing container 11 includes a cylindrical main body portion 21 and an end plate-like lid portion 23, and the filter medium 10 is detachably sandwiched between the main body portion 21 and the lid body portion 23. At this time, the arrangement position of the filter medium 10 is usually set above the intermediate height of the processing container in order to secure a processing amount (raw material and product).

  The lid portion 23 can be opened and closed and sealed with respect to the main body portion 21. The opening / closing method of the lid part 23 is arbitrary, and a conventional method can be used. For example, it is possible to adopt a method in which a hinge bolt is used for fastening by opening and closing the hinge, or a covering type or a screw fitting type.

  As for the said heating means, the surrounding surface of the main-body part 21 is formed with jacket 25A, 25B. The jacket 25B on the lid 23 side is a spiral heating pipe. The outer peripheral surfaces of the jackets 25A and 25B are covered with a heat insulating material 26.

  Although not shown in detail in each of the jackets 25A and 25B, a heat medium can be introduced / discharged through a rotary joint 27 described later. A pair of heat medium supply / discharge hoses 28A, 28B is connected to the rotary 27. Here, the heat medium includes not only steam, hot water and organic heat medium, but also cooling water. This is because the product after the drying process may be cooled.

  That is, when the heat medium is steam, steam is supplied from one hose 28A, and drain is discharged from the other hose 28B. When the heating medium is hot water, cooling water or an organic heating medium, the introduction / discharge is reversed.

  The heating means may be other heating means, which can be used alone or in combination. Examples of other heating means include resistance heating, microwave heating, induction heating, and the like, and further, a drying chamber in which the vertical vibration dryer D can be carried out and carried in may be used. Therefore, the heating means does not necessarily have to be attached to the processing container 11. Further, in the case of a raw material / product that does not like heating, only vacuum drying may be used for vibration drying without performing heat drying.

  Further, a raised portion 21a constituting the inner wall of the jacket 25A is provided on the bottom side of the main body jacket 25A, and a donut-shaped drying processing portion T is formed around the raised portion 21a. With this configuration, the object to be processed is heated from the center portion in addition to the bottom portion and the surrounding portion, and the efficiency of the drying process is improved.

  An open / close nozzle (raw material input / product discharge port) 29 is connected to the lowest position on the bottom side of the doughnut-shaped drying processing unit T. It becomes easy to discharge the granular product after the drying treatment. Here, the on-off valve 30 that opens and closes the on-off nozzle 29 is a ball valve in the illustrated example, but a conventional on-off valve may be used as long as the inside of the processing container can be sealed so as to be pressurized or depressurized.

  In addition, a resistance temperature detector 31 for controlling the temperature of the heating medium is mounted at a position different from the formation part of the opening / closing nozzle 29 on the bottom side of the drying processing unit T.

  The filtrate collection line L1 shown in FIG. 5 includes a filtrate receiving tank 34 connected to the suction nozzle 33 during the filtration step, and a vacuum pump 35A connected to the upper side of the filtrate receiving tank 34. On the other hand, the steam recovery line L2 shown in FIG. 1 is connected to the condenser (condenser) 37 in the drying process, the condensate receiving tank 38 connected to the outlet side of the condenser 37, and the ceiling side of the condensate receiving tank 38. And a vacuum pump 35B.

  In this embodiment, the vibration means is attached to a vibration table 40 supported by the elastic support body 14. Here, the vibration table 40 is not necessary for the vibration motor when the vibration motor is directly connected to the processing container 11, but is necessary for pivotally supporting the reversing shafts 45A and 45B described later.

  Moreover, the elastic support body 14 is formed with the spring 14b each attached to the four support | pillar spring seats 14a distribute | arranged on the mount main body 17 in this embodiment. The spring 14b is preferably a rubber spring because iron powder is not generated, but may be an air spring, an Erigo spring, or the like. The right side of the gantry body 17 is a motor base 18 to which a motor case 49 of a reverse drive motor 51 described later is attached.

  Here, the vibration means is formed by a pair of vibration motors 12 and 12 attached to a vibration table 40 as will be described later. This is because it is easy to separate only the processing container 11 and move it to the next step. If such a case is not assumed, the vibration motor 12 may be directly attached to the processing container 11.

  The vibration means is not limited to the vibration motor 12, but may be other conventional vibration means. Note that the vibration form may be either (elliptical) circular motion type or linear motion type. Examples of other conventional excitation means include a mechanical oscillator (forcibly rotating an unbalanced weight with a motor), an electromagnetic oscillator, and the like.

  As the filter medium 10, although it changes with kinds of to-be-processed object, what combined the cloth, the nonwoven fabric (felt), the wire mesh, the glass fiber, the ceramic, the sintered metal, etc. individually or suitably can be used.

  Usually, in order to promote filtration, it is desirable to be able to connect a differential pressure generating means for generating a differential pressure in the space on both sides of the filter medium when the processing container is inverted.

  In the present embodiment, the differential pressure generating means is configured such that the suction port of the vacuum pump 35A is connected to the suction nozzle 33 connected to the neck portion 23a of the lid portion 23 via the condenser 37 and the condensate receiving tank 38, thereby making a difference. Pressure is generated. Although the pressure varies depending on the type of the liquid-containing raw material, the differential pressure is usually 0.1 to 1 MPa. Although not shown, a means for blowing pressurized air into the filtration chamber may be provided.

  Up to this point, the configuration is the same as that of the prior application invention. Next, the reversing mechanism that is the greatest feature of the present invention will be described.

  The reversing mechanism includes a pair of reversing shafts 45A and 45B projecting outward from both sides of the processing container 11, a vibrating table 40 that is supported by the elastic support 14 so as not to rotate and supports the processing container 11, and one reversing shaft. (Driving-side reversing shaft) A reversing driving motor (reversing driving means) 51 having a driving shaft 51a connected to 45A is provided. The vibration table 40 has a pair of bearing members 47 that pivotally support the reversing shafts 45A and 45B, and has motor seats 41 and 41 for attaching a pair of vibration motors 51 to the lower side.

  Here, the bearing member 47 includes a lower bearing 47a integrated with the vibration table, and an upper bearing 47b fixed so as to be easily detachable from the lower bearing 47b. In the illustrated example, the bearing member 47 is a bearing alloy. The upper bearing 47 b can be attached by screwing a screw bolt 48 or the like into a female screw 43 a formed on the upper end surface of the bearing holding portion 43 of the vibration table 40. In this way, only the processing container 11 can be easily removed from the vibration table 40, and the next process and processing container maintenance can be facilitated.

  Further, the drive shaft 51a of the reverse drive motor 51 can be intermittently connected to the driven-side reverse shaft 45A by a clutch method. A handle or the like may be attached to the driven side reversing shaft 45A so that the reversing driving means may be a manual type. In this case, it is not necessary to use a clutch system.

  The clutch system may be a meshing clutch or a friction clutch. The clutch can be engaged / disengaged, that is, the transmission / disconnection of the rotational force can be performed by moving the motor case 49 back and forth (sliding) or swinging. The slide method can be performed, for example, via a rail pair formed between the motor base 18 and the motor case 49. The motor base 18 can be moved back and forth with an air cylinder or the like, or the spring can be biased to manually engage or disengage the clutch.

  In the present embodiment, the heat medium supply / discharge hoses 28A and 28B are connected to the rotary joint 27 so that the heat medium can be supplied and discharged from the hoses 28A and 28B to the jackets 25A and 25B. .

  Next, the vibration drying method of the present invention using the above vertical vibration dryer will be described.

  In the following description, the inverted state and the upright state of the processing container include not only the vertical direction but also an inclined direction deviating from the vertical direction. Various vibration forms can be created by tilting the processing container. The processing container can be fixed by vibration using conventional angle fixing means provided on the vibration table.

  The suction nozzle 33 of the vertical vibrator is connected to the filtrate recovery line L1 in the filtration step or the vapor recovery line L2 in the vibration drying step so as to be switchable. When the processing container is inverted during the transition between the following steps, the suction nozzle 33 is usually closed by an on-off valve (not shown), and the suction nozzle 33 and the filtrate recovery line L1 or the steam recovery line are closed. The connection with L2 is disconnected. Further, when the processing container 11 is small, a long hose capable of reversing the processing container 11 is connected to the suction nozzle 33, and the reversal and re-inversion are performed while being connected to each line L1 or L2. May be. In that case, what is necessary is just to connect cheese to the front-end | tip of a hose and arrange | position a switching valve to a branch part.

(1) Filtration step (FIG. 5):
First, the motor case 49 is moved forward so that the drive shaft 51a of the reverse drive motor 51 is clutch-connected to the driven-side reverse shaft 45A.

  Next, the reversal drive motor 51 is operated, the reversal shaft is driven to rotate 180 °, and the processing container is reversed to be in an inverted state. Thereafter, even in the filtering step, when vibration is caused, the motor case 49 is retracted to release the clutch connection between the drive shaft 51a and the driven-side reversing shaft 45A (between the facing surfaces of the drive shaft 51a and the driven-side reversing shaft 45A). (See Fig. 5). When the processing container is not vibrated in the filtration step, it is not necessary to release the clutch.

  Then, the open / close nozzle (raw material input port) 29 in the inverted processing container 11 is opened by the open / close valve 30, and the liquid-containing raw material (object to be processed) is charged. Thereafter, the open / close nozzle 29 is closed, and the suction nozzle 33 is connected to the filtrate collection line L1.

  Here, the form of the liquid-containing raw material is arbitrary, such as suspension, slurry, paste, etc., and the charging method is not only the normal pressure opening, but also the raw material supply hose (opening / closing nozzle) 29 is connected to the raw material supply hose for pressurization or A method of suction (1 to -0.1 Mpa) may be used. In the case of the latter method, it can be closed and it is easy to avoid raw material contamination.

  Further, the raw material input amount is set to an amount that is 25 to 80% of the processing capacity of the processing container 11. The capacity at the time of drying is 20 to 50%.

  In this state, the vacuum pump 35 (suction gas transporter) 35A of the filtrate recovery line L1 is operated to perform suction. Here, the pressurized gas can be pressurized by blowing into the upper space of the filter medium 10 from a pressurized gas port (not shown). As the pressurized gas, air is usually used, but when the product dislikes oxidative deterioration, an inert gas such as nitrogen is used.

  Then, a differential pressure is generated between the double-sided spaces of the filter medium 10, and the filtration of the liquid-containing raw material is promoted. At this time, the filtrate is transferred to the filtrate receiving tank 34 from the suction nozzle 33 formed on the end surface of the neck 23a of the lid 23 and collected by the suction action of the vacuum pump 35A of the filtrate collection line L1.

  When the filter cake C deposited on the upper surface of the filter medium 10 may cause clogging of the filter medium 10, the open / close nozzle 29 is opened and the cleaning liquid (water or solvent) is intermittently supplied for cleaning. It is desirable. At this time, as in the filtration operation, the open / close nozzle 29 is closed and a differential pressure is generated on both surfaces of the filter medium 10 to wash the filter medium or filter cake.

  In addition, you may perform filtration and washing | cleaning operation in a filtration process, vibrating a processing container continuously or intermittently. The vibration conditions at this time vary depending on the type of the object to be treated (solid particle specific gravity / content, slurry viscosity, etc.), but are appropriately selected from the range of vibration frequency: 16.2 to 29.2 Hz and amplitude: 2 to 3 mm.

  At this time, when intermittently vibrated, depending on the type of the liquid-containing raw material, the dispersion of the solid particles in the liquid is promoted, and the filtration / cleaning efficiency is improved. In addition, by applying vibration in the initial and middle stages of the filtration, the object to be processed in which the uneven distribution of the solid particles of the input slurry (object to be processed) is corrected is homogenized. The uneven distribution of solid particles leads to a decrease in filtration efficiency or a variation in the moisture content of the cake.

  At the end of the filtering step, when the drive shaft 51a and the driven-side reversing shaft 45A are separated from each other and the clutch connection is released, the motor case 49 is advanced again to drive the drive shaft 51a to the driven-side. A clutch is connected to the reversing shaft 45A.

(2) Vibration drying process (Figs. 1-3)
Next, the driven side reversal shaft 45A is driven by the drive shaft 51a, and the processing container 11 is re-reversed to be in an upright state. Here, the clutch connection between the drive shaft 51a of the reverse drive motor 51 and the driven-side reverse shaft 45A is released. That is, there is a gap between the end surfaces of the drive shaft 51a and the driven-side reversing shaft 45A.

  The filter medium 10 is also reversed by re-inversion of the processing container 11. For this reason, the filter cake (cake) C deposited on the filter medium 10 falls by its own weight. If the weight does not fall, the filter cake C can easily fall if the processing motor 11 is vibrated by operating the vibration motor 12. The dropped filter cake C is impacted on the bottom surface of the processing container 11 and crushed (coarse). In this embodiment, since the raised part 21a is formed in the center of the bottom part of the processing container 11, it becomes easier to be crushed.

  Then, with the on-off valve 30 of the on-off nozzle 29 closed, the vacuum pump 35B is operated with the suction nozzle 33 of the lid neck portion 23a of the processing container 11 connected to the vapor recovery line L2. At the same time, the heat medium is passed through the space of the jackets 25A and 25B via the pair of heat medium supply / discharge hoses 28A and 28B, and the vibration motor 12 is operated.

  Then, the object to be processed (filter cake) dropped on the drying processing unit T of the processing container 11 is vibrationally dried to become a product (usually powdery) P. At this time, the generated steam is sucked into the steam recovery line L2 by the action of the vacuum pump 35B and recovered. At this time, if the output (suction capability) of the vacuum pump 35B exceeds the amount of generated steam, the inside of the processing container 11 is also decompressed. If the product is susceptible to heat, the drying process can be performed without increasing the heating temperature.

  The vibration conditions in the vibration drying are the same as those in the filtration step described above.

  When the drying process is completed, when the vacuum pump 35B and the vibration motor 12 are stopped and the opening / closing nozzle 29 formed on the bottom surface of the drying processing unit is opened by the opening / closing valve 30, the product P is released from the opening / closing nozzle 29 by its own weight. Discharged. If the vibration motor 12 is operated even during the product discharge, the product discharge speed increases.

  Thus, in the present embodiment, the filtration / drying process can be efficiently performed in the processing container of one vertical dryer, and as a result, contamination and oxidative deterioration of the processed product can be avoided. In particular, when the process from the filtration step to the drying step is performed by continuously maintaining the vacuum (depressurized) state in the processing container, it is possible to more reliably avoid the heat and oxidation of the processed product.

  As mentioned above, although this invention was demonstrated based on embodiment, the vibration drying apparatus of this invention can be used suitably for the vibration drying method of the following structure in the said prior invention.

  `` A vibration drying method for obtaining a product from a liquid-containing raw material through a filtration step and a drying step, in which the processing container is inverted and turned upside down, after the liquid-containing raw material is charged from the raw material inlet formed on the bottom side, A filtration step of depositing filter cake on the filter medium, and drying to reversibly invert the processing container to make it upright, drop the filter cake onto a drying processing unit on the bottom side of the processing container, and perform vibration drying processing Including a process. "

  And the vibration drying apparatus of this invention has the following differences in an inversion processing mechanism (inversion processing means), as compared with the vibration drying apparatus according to the invention of the prior application.

  In reversing the processing vessel on the elastic support (spring), the invention of the prior application reverses by supporting the reversing shaft on the bearing member floating from the elastic support and setting it on the elastic support again. In the present invention, the reversing shafts 45A and 45B are pivotally supported on the bearing member 47 of the vibration table 40 that is non-rotatably supported by the elastic support member 14, and is driven to rotate.

  For this reason, in the present invention, unlike the prior application invention, it is not necessary to provide spring seats above and below the processing container, and the angle at which the processing container is upright or inverted can be arbitrarily set. That is, in the present invention, the processing container 11 becomes relatively light, and various forms of vibration can be applied to the object to be processed.

  Further, in the present invention, since the intermittent connection between the driven side reversing shaft 45A and the driving shaft 51a of the reversing drive motor is a clutch system, intermittent vibration and reversal of the processing container in the drying process can be facilitated.

  These effects cannot be achieved from the prior invention.

DESCRIPTION OF SYMBOLS 11 Processing container 12 Vibration motor 14 Elastic support body 14a Support | pillar spring seat 14b Spring 21 Main part of processing container 23 Cover part 25A, 25B of processing container Jacket (heating means)
28A, 28B Heat medium supply / discharge hose 29 Open / close nozzle 33 Suction nozzle 35A, 35B Vacuum pump 40 Shaking table 45A, 45B Reverse shaft 47 Bearing member 47a Lower bearing 47b Upper bearing 51 Reverse drive motor 51a Drive shaft L1 Filtrate recovery line L2 Steam Collection line

Claims (7)

A vertical vibration dryer used to produce a product through a filtration process and a drying process in a processing container in which a plate-shaped filter medium is arranged,
The integrated vibration part structure including the processing container and the vibration means is supported via an elastic support disposed on the stationary part structure, and includes a reversing mechanism of the processing container.
The reversing mechanism has a pair of reversing shafts projecting outward from both sides of the processing container, and a bearing member that is supported by the elastic support member so as not to rotate and supports the reversing shaft to support the processing container. A reversing drive means connected to a vibration table and one of the reversing shafts (driven reversing shaft) is configured.
A vertical vibration dryer characterized by that.   2. The saddle type vibration drying according to claim 1, wherein the bearing member includes a lower bearing integrated with the vibration table and an upper bearing fixed so as to be easily detached from the lower bearing. Machine.   3. The bag according to claim 1, wherein the reverse drive means is a reverse drive motor, and a drive shaft of the reverse drive motor can be intermittently connected to the driven reverse shaft by a clutch method. Mold vibration dryer.   The processing container includes a jacket, and further includes a raised portion that constitutes an inner wall of the jacket on the bottom side, and a doughnut-shaped drying treatment portion is formed around the raised portion. 2. A vertical vibration dryer according to item 2.   The vertical vibration dryer according to claim 1 or 2, wherein a differential pressure generating means for generating a differential pressure in both side spaces of the filter medium is connectable when the processing container is inverted. A vibration drying method for obtaining a product from a liquid-containing raw material through a filtration step and a drying step using the vertical vibration dryer according to claim 1,
A filtration step of depositing filter cake on the filter medium after charging the liquid-containing raw material from the raw material input port formed on the bottom side, by inverting the processing container and turning it upside down, and
Including a drying step of reversing the processing container to make it upright, dropping the filter cake onto a drying processing unit on the bottom side of the processing container and performing a vibration drying process,
A vibration drying method characterized by that.   The vibration drying method according to claim 6, wherein the filtering step is performed while a differential pressure is generated in both side spaces of the filter medium when the processing container is inverted.

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