JP2002139278A - Drying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drying device, facilitated in the mounting of a rotary frame on a drying matter vessel and capable of switching a brand or the like quickly and easily when various kinds and various brands of the matters to be dried are dried. SOLUTION: The drying device is provided with a main body vessel, openable and attaining a substantially sealed condition when the same is closed, a rotation providing device arranged in the main body vessel and having a rotary power outputting unit arranged in the main body vessel, the rotary frame supported rotatably by the rotating power outputting unit, the drying matters vessel fixed to the inside of the rotary frame and having a multitude of venting holes, and gas supplying port as well as an exhaust port which are provided in the main body vessel at positions substantially opposed to each other. In this case, the rotary frame is constituted of a plurality of ring bodies fixed detachably to the drying matters vessel respectively and independently through fixing means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying apparatus and, more particularly, to a drying apparatus for storing and heating powdery and granular materials such as chemicals and chemicals, and evaporating and drying a solvent of the material to be dried. .

[0002]

2. Description of the Related Art As a conventional apparatus for drying powders, liquids and the like, there are the following apparatuses.

[0003] (a) An object to be dried is placed in a vertical or horizontal fixed container having a stirring device, and a drying gas is passed through the container or the pressure in the container is reduced to a vacuum. Stirring tank type drying equipment that dries while stirring.

(B) A cylindrical or double-cone type drying apparatus in which a container for holding the object to be dried rotates. In this case, a rotary joint is used for the heating medium supply pipe and the vacuum pipe provided as the rotary shaft.

(C) A fluidized bed or moving bed type drying apparatus in which a substance to be dried is accommodated in a vertical cylindrical container or the like, and a drying gas is passed therethrough.

(D) A container-replacement-type drying apparatus in which an object to be dried is stored in a replaceable container and is dried under ventilation or vacuum.

(E) A vacuum freeze-drying apparatus that freezes and dries a liquid contained in a replaceable pallet in a vacuum vessel.

(F) A drying apparatus in which a fluidized-bed drying chamber in which heating gas is supplied and exhausted from rotating joints attached to both ends of a replaceable cylindrical container is inclinedly rotated.

[0009]

The above-mentioned (a)
In the devices (b) and (c), the container for storing the object to be dried is incorporated in the drying device, and is not removed except for maintenance of the device. Therefore,
It is necessary to clean the container and the stirrer every time the type or brand of a substance to be dried such as a chemical or a chemical is changed. In addition, in order to avoid contamination of the object to be dried, it is necessary to confirm the degree of cleaning, and a great deal of labor and time are required when switching brands and the like.

Further, in the above-mentioned apparatuses (d) and (e), since a replaceable container accommodating the object to be dried is left standing in the drying apparatus for drying, the drying speed is low and the drying time is long. Takes time. Further, since the object to be dried is allowed to stand still in the container and dried, the object to be dried after drying may be solidified and adhered to the container. There is a decline.

[0011] Further, in the above-mentioned device (f), a rotary joint is required at both ends of the cylindrical container so as to supply and exhaust gas.

As a drying apparatus which solves such a problem of the conventional drying apparatus, there is a drying apparatus with a replaceable drying container described in JP-A-10-318672 proposed by the same applicant as the present application. is there. In this drying apparatus, a rotating roller driven from the outside is installed inside the main body container, a dried material container whose outer shell is made of a porous material is placed on the roller, and the main body is rotated while rotating the dried material container. Drying is performed by aerating the drying gas for heating inside the container and / or reducing the pressure inside the main container under reduced pressure.

In such a configuration, the dried product container is
Since it is replaceable, it is possible to prevent mixing of other brands when drying brands such as pharmaceuticals, agricultural chemicals, chemicals, etc. After taking out the dry matter container in which is put, is very excellent in cleaning properties. Further, since the dried product container is rotating, the dried product can be easily taken out from the dried product container without being fixed to the dried product container. Further, in the above publication, the dried product container is mounted obliquely with respect to the rotating frame, and the dried product container is precessed by rotating the rotating frame about a horizontal axis. Techniques for improving mixing are also described.

However, the ring members of the rotating frame are connected by a connecting member and cannot be separated, and the dried product container is fixed by a band and a fastener using this connecting member. .

Therefore, when the rotating frame is attached to the dried product container, it corresponds to the length of the rotating frame (the distance between the ring body located at one end of the rotating frame and the ring body located at the other end of the rotating frame). If the rotating frame is not moved by a distance, the dried product container cannot be accommodated inside the rotating frame, so that there is a problem that mounting the rotating frame on the dried product container becomes troublesome.

In particular, when the dried material container is mounted on the rotating frame in a state where the material to be dried is placed in the dried material container, the mounting work is further complicated by the weight of the dried material. In addition, even when the dry matter container is empty, if the dry matter container becomes about the size of a drum, handling of the dry matter container becomes troublesome, the rotating frame becomes large and the weight increases, so the above-mentioned attaching work is enormous. There was a problem that labor was required.

[0017]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and makes it easy to mount a rotating frame on a dry product container. It is an object of the present invention to provide a drying apparatus which can quickly and easily switch brands and the like when drying a brand to be dried.

[0018]

SUMMARY OF THE INVENTION A drying apparatus according to the present invention is openable and closable and has a substantially sealed state when closed, and a rotational force output portion disposed inside the main body container. A rotation imparting device having a rotation frame rotatably supported by the rotation force output unit, and fixed in the rotation frame,
A drying apparatus comprising: a dried product container having a large number of ventilation holes; and a gas supply port and an exhaust port provided at substantially opposite positions in the main body container, wherein the rotating frame includes a plurality of ring bodies. The ring members are independently and detachably fixed to the dry matter container by fixing means.

Preferably, the dried product container is formed in a cylindrical shape, and an axis of the dried product container is inclined with respect to a rotation axis of the rotating frame.

The rotation applying device includes a plurality of rollers supporting a plurality of rotating frames, with the first roller and the second roller provided as one set provided inside the main body container. It is desirable that the rollers be linked by power transmission means.

It is preferable that the dried product container is formed of a porous material or a mesh material, and that a filter cloth having air permeability is replaceably provided inside the dried product container.

It is desirable to further include a heating device such as a heater or a jacket for heating the inside of the main body container.

It is desirable that a baffle or a removable filter cloth baffle be mounted inside the dry matter container.

[0024]

Embodiments of the present invention will be described below with reference to the accompanying drawings. (First Embodiment) FIG. 1 is a perspective view showing a drying apparatus 1 in the present embodiment. The drying device 1 includes a main container 1
0, a rotation applying device 20 for performing a rotation operation in the main body container 10, and two rotating support devices 20 arranged on both left and right sides inside the main body container 10 and rotatably supported by a rotation force output unit of the rotation applying device 20. Rotating frame 32 and two dry matter containers 3 fixed within the rotating frame 32 and rotating together with the rotating frame 32.
4 is provided.

The main body container 10 has a rectangular parallelepiped body 10a fixed on the base 5 and an openable / closable lid 10b provided at the rear of the body 10a. Further, the front part of the body part 10a is substantially sealed by the end wall 10c,
By closing the lid 10b, the inside of the main body container 10 can be substantially sealed.

The lid 10b is dimensioned so that two dried product containers 34 can be simultaneously inserted into and removed from the main container 10 together with the rotating frame 32.

Gas supply ports 12 are provided on both left and right sides of the body 10a, and an exhaust port 14 is provided on the upper part of the body 10a. These are in fluid communication with the inside of the main body container 10, so that a dry gas can be supplied or evacuated.

The rotation imparting device 20 includes a driving roller 22 and free rollers 24, 24 a, 24 b arranged in parallel with the driving roller 22 to apply rotation to the rotating frame 32 inside the main body container 10. And a motor 28 for driving the drive roller 22 from outside. The driving roller 22 and the free rollers 24, 24a, 24b
It is a rod-shaped roller and forms a rotational force output section of the rotation applying device 20.

Driving roller 22 and free rollers 24, 2
The shafts 4a and 24b are rotatably supported by a roller support 25 fixed below the inside of the main body container 10.

The drive roller 22 is provided on the end wall 1 of the main container 10.
Oc extends through the shaft sealing portion 16 to the outside of the main body container 10, and a portion extending to the outside of the main body container 10 is connected to a power output shaft of the motor 28 as a power input shaft of the drive roller 22. The drive roller 22 and the free rollers 24, 24a, 24b are connected by a power transmission device 29. Accordingly, the driving roller 22 and the free rollers 24, 24a, 24b rotate by the driving of the motor 28.

The driving roller 22 and the free roller 2
4, one rotating frame 32 is provided with a free roller 24a,
The other rotating frame 32 is placed on the roller 24b so as to straddle the rollers.
Due to the rotation of 4, 24a, 24b, the fixed dried product containers 34 of the two rotating frames 32 are rotated.

The power transmission device 29 includes a pulley 29a fixed to the shaft of the drive roller 22 and the shafts of the free rollers 24, 24a and 24b, respectively, and a drive belt (for example, a V-belt) wound around the pulley 29a. 29b. However, the power transmission device 29 can be formed in various forms such as a combination of a chain and a chain sprocket, or a method using meshing by gears.

Further, the free rollers 24, 24a, 24
A load measuring device (not shown) having a load cell and the like is connected to b, and the load measuring device is attached to a roller support 25 that supports the free roller 24. By providing the load measuring device in this manner, it is possible to constantly measure a change in mass of the dry matter container 34 placed on the free roller 24.

As shown in FIG. 2, the dried product container 34 has a large number of ventilation holes 34a on its outer peripheral surface (side surface).
The object to be dried contained therein is configured to be easily brought into contact with the drying gas supplied from the gas supply port 12.

As shown in FIG. 3, the dried material container 34 is formed by stretching a net-like material 34c on a circular frame 34a provided in the front and rear and a circular frame 34b provided in the middle part. Is formed. In addition, the dried material container 34 is
Instead of c, a porous material formed in the shape of a punched metal may be employed, and a filter cloth may be provided inside the dried product container so as to be replaceable. In this way, for example, if the material to be dried is packed in a bag-like filter cloth and accommodated in the dry matter container 34, the brand of the material to be dried can be more quickly and easily changed by exchanging the bag-like filter cloth. Can be done. When a combination of a porous material, a mesh material, and a filter cloth is used as the dried product container 34, for example, a filter cloth or a mesh may be attached to the inside or outside of the porous material container. In this case, a string of the same material as that of the filter cloth or the net or a wire having an appropriate thickness may be used and tied or sewn and fixed. As described above, the shape of the dried product container 34 is such that the voids of the perforated plate or the mesh are reduced as long as the dried material does not spill outside and the drying gas and the vapor from the dried material can appropriately pass therethrough. The dried material may be directly placed in the dried product container 34, or may be stored in a filter cloth or the like and placed in the dried product container 34 as described above.

An outlet 34d for the material to be dried is provided at the rear end of the dried product container 34. A lid 34e is detachably attached to the outlet 34d by a stop band 34f.

The form of the dried product container 34 is such that the pores of the perforated plate or net are reduced as long as the dried product does not spill outside and the drying gas and the vapor from the dried product can appropriately pass therethrough. The dried material may be directly placed in the dried product container 34, or may be variously configured, such as being stored in a filter cloth or the like and placed in the dried product container 34 as described above.

As shown in FIG. 3, on the outer peripheral surface of the frame 34a of the dried product container 34, four fixing pieces 38 having the same height at equal intervals in the circumferential direction are provided on the outer peripheral surface of the frame 34a. , And each fixing piece 35 is provided with a through hole (not shown) at the center thereof.

The rotating frame 32 is composed of two ring members 32A having the same diameter and fixed to the outer periphery of a frame 34a located before and after the dried product container 34.

As shown in FIGS. 3 to 5, on the inner peripheral surface of the ring body 32A, the fixing piece 35 of the frame body 34a of the dry matter container 34 is provided.
Correspondingly, two sets of opposed fixing pieces 36 are protruded, and each fixing piece 36 is provided with a through hole (not shown).

One set of fixing pieces 36 comprises a tall fixing piece 36a and a short fixing piece 36b.
36b is inclined by a predetermined angle θ with respect to the inner peripheral surface of the ring body 32A, and the tip of the tall fixing piece 36a and the short fixing piece 36
A through-hole (not shown) is formed in the center of each of b.

The other set of fixing pieces 36 is composed of fixing pieces 36c having the same height, and is inclined by a predetermined angle θ with respect to the circumferential direction of the ring body 32A. Has a through hole (not shown).

The procedure for attaching the rotating frame 32 to the dry matter container 34 is as follows. First, one end of the dried product container 34 is lifted and the frame 3 positioned at the one end of the dried product container 34 is opened.
4a, the ring body 32A is positioned on the outer periphery of the ring body 32a.
The fixing piece 36 of A and the fixing piece 35 of the frame body 34a are overlapped, and the ring body 32A is fixed to the dry matter container 34 by bolts 37 and nuts 38 inserted into the through holes. Next, one end of the dried product container 34 is lowered, the other end of the dried product container 34 is lifted, and the ring body 32A is positioned on the outer periphery of the frame 34a located at the other end of the dried product container 34, as described above. The ring body 32A is fixed to the dry matter container.

The number of the fixing pieces 36 is not particularly limited as long as the number is two or more. For example, when the number of the fixing pieces 36 is 3, the fixing pieces 36 are arranged at equal intervals in the circumferential direction of the ring body 32A, and one or two adjacent fixing pieces 36 are formed tall, and the remaining The fixing piece 36 may be formed to be short.

When two ring bodies 32A located before and after the dry matter container 34 are attached to the dry matter container 34,
As shown in FIGS. 4 and 5, the tall fixing piece 36a of the front ring 32A and the tall fixing piece 36 of the rear ring 32A.
a is shifted by 180 degrees in the circumferential direction of the ring body 32A,
Also, as shown in FIG. 3, the fixing pieces 36 of the front and rear ring bodies 32A are inclined in the same direction.

Therefore, when the rotating frame 32 is placed on the roller, the rotating shaft of the rotating frame 32 (the front and rear ring bodies 32A)
Is horizontal, and the central axis of the dried product container 34 is inclined with respect to the rotation axis by the same angle as the inclination angle θ of the fixed piece 36 of the ring body 32A.

The fixing means is constituted by the fixing piece 35 of the frame 34a of the dried product container 34 and the fixing piece 36 of the ring body 32A.

The rotating frame 32 may be constituted by three or more ring bodies 32A. In this case, the ring bodies 32A other than the ring bodies 32A disposed in front of and behind the dry matter container 34 are dried matter. It is fixed to an intermediate frame 34a of the container 34 by fixing means.

In this manner, if the dried product container 34 is held so that the axial direction of the dried product container 34 is inclined with respect to the rotation axis A of the rotary frame 32, the dried product container 34 is rotated with the rotation of the rotary frame 32 around the axial direction A. Performs a precession movement, and the material to be dried accommodated in the dry matter container 34 is agitated so as to be shaken while moving in the axial direction of the dry matter container 34, thereby preventing uneven drying and drying. No clumping.

When the object to be dried is dried using a drying apparatus, first, the object to be dried is placed in the container 34 outside the main body container 10 and then dried as described above. The rotating frame 32 is attached to the container 34, and then the dry container 34 is opened by opening the lid 10b of the main container 10.
0 and drive roller 22 and free roller 2
After being placed so as to straddle the tops 4, 24a and 24b, the lid 10b is closed to close the inside of the main container 10 tightly. afterwards,
The motor 28 is driven to rotate the drive roller 22 and the dry matter container 34 interlocked therewith.
The dry gas G flowing from the container is sprayed on the dried material container 34 to be brought into contact with the material to be dried in the dried material container 34 through the vent hole 34a.

As shown in FIGS. 8 and 9, a baffle plate 40 is detachably mounted inside the dried product container 34, and the baffle plate 40 is attached to the expansion / contraction means 41. The expansion / contraction means 41 includes a screw rod 42, a first connector 43 fixed to one end of the screw rod 42, a second connector 44 screwed to the screw rod 42, and a radial arrangement around the screw rod 42. And a support rod 45 pivotally connected to the attachment bodies 43 and 44 and the baffle plate 40 at both ends, and by rotating the screw rod 42 forward and backward, the support rod 45 is turned upside down to screw the baffle plate 40 It expands and contracts in the direction of radiation centered on the rod 42. Then, after the baffle plate 40 is placed in the dried product container 34 in a contracted state, the baffle plate 40 is expanded to position and fix the baffle plate 40 on the inner peripheral surface of the dried product container 34.

If the baffle plate 40 is attached, the dried product container 3
The rotation of 4 further loosens the material to be dried, promotes the mixing action, promotes homogenization of the non-dried material, and enables uniform and rapid drying. The baffle plate 40 also serves as a filter cloth holder. (Second Embodiment) FIGS. 6 and 7 show a second embodiment.

The drying device comprises a main container 10 and a main container 1.
Rotation giving device 20 for performing a rotation operation within 0
And the rotation imparting device 20 disposed inside the main body container 10.
Frame 32 rotatably supported by the rotational force output unit
A drying container 34 fixed in the rotating frame 32 and rotating together with the rotating frame 32, a gas supply port 12 and an exhaust port 14 provided at positions substantially opposite to each other on the peripheral surface of the main body container 10, A plurality of partition members 18 are held by the rotating frame 32 at intervals in the circumferential direction of the rotating frame 32 and each extend between the rotating frame 32 and the dried product container 34.

The main body container 10 has a cylindrical shape and a horizontal type.
And a gas supply port 12 is provided at the bottom of the body 10a, and an exhaust port 1 facing the gas supply port 12 is provided at the top of the body 10a.
4 are provided.

The rotating frame 32 is composed of two ring bodies 32A, and the ring bodies 32A are independently and detachably fixed to the dry matter container 34 by the fixing means as described above.

The ring member 32A is provided with a partition member 18 for increasing the drying speed. As shown in FIG. 7, the partition member 18 is fitted in a guide groove 39 provided on the inner surface of the ring body 32A and held detachably. By doing so, the partition member 18 can be removed when the dried product container 34 is taken in and out of the main body container 10, and the work efficiency is improved.

As shown in FIG. 7, the partition member 18 guides the dry gas G flowing from the gas supply port 12 into the ventilation hole 34a of the dry substance container 34 to contact the object to be dried. There are many chances of passing through the inside 34 to increase the drying speed.

The rotation applying device 20 includes a driving roller 22 for applying rotation to a pair of left and right rotating frames 32 inside the main body container 10, a free roller 24, and a driving roller 22.
And a motor 28 for driving the driving roller 22.
Is connected to a motor 28 by power transmission means 29.

Since the other configuration is the same as that of the first embodiment, the description of the configuration will be omitted by attaching the same reference numerals as those of the configuration of the first embodiment to the drawings.

Note that the partition member 18 may be attached to the drying device of the first embodiment.

(Third Embodiment) FIGS. 10 and 11 show a third embodiment. The dried material container 34 has a rectangular frame body 34a and an intermediate frame member 34b provided on the front and back, with a mesh material 34c stretched over the dried material container 34, and an entrance for a dried material provided at the rear end of the dried material container 34. Has a square lid 34e detachably attached by bolts 37 and nuts 38.

The outer periphery of the frame 34a of the dried product container 34
One fixing piece 35 is attached, and a fixing piece 36 is provided on the inner peripheral surface of the rotating frame 32.

Accordingly, the ring body 32A is connected to the dry product container 34.
The fixing piece 36 of the ring body 32A and the fixing piece 35 of the frame body 34a of the dry matter container 34 are overlapped, and the ring body 32A is fixed to the dry matter container 34 by bolts 37 and nuts 38. I do.

Since the structures of the main body container and the rotation applying device are the same as those of the second embodiment, the description is omitted.

[0065]

As described above, according to the present invention,
Since the plurality of rings constituting the rotating frame can be independently attached to the dried product container, the dried product container does not need to be moved by the length of the rotating frame as in a conventional drying device. The mounting work can be facilitated. Further, since the weight of each ring body is relatively light, the weight of the parts to be handled is reduced, and the mounting work is further facilitated.

Further, since the dried product container is detachably held by the rotating frame, the operation of switching the brand of the dried product can be performed quickly and easily, for example, by replacing the whole dried product container. In the case of drying a variety or a variety of brands to be dried, brands and the like can be switched quickly and easily.

Further, since the dried material container is inclined with respect to the rotation axis of the rotating frame, when the rotating frame is rotated, the dried material container performs a precession motion, so that the inside of the drying material container during the drying process is reduced. The mixing property of the material to be dried contained in the container can be further improved.

Also, since a plurality of sets of rollers, each of which includes a first roller and a second roller, which rotatably support the rotating frame, are provided, and each set of rollers is linked by power transmission means, one set of rollers is provided. A plurality of dried product containers can be rotated by the driving device, so that equipment costs can be reduced.

Further, if the dried product container is configured to have an outer shell container made of a porous material or a net-like material and a filter cloth that is replaceably provided inside the outer shell container, the filter cloth can be replaced by another filter cloth. In addition, the contamination can be reduced, and the operation of changing the brand of the object to be dried can be easily performed.

Further, since a heating means such as a heater or a jacket for heating the inside of the main body container is provided, the drying speed can be further improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a drying apparatus according to a first embodiment of the present invention as seen through a main body container.

FIG. 2 is a plan view showing the drying apparatus of the embodiment as seen through a main body container.

FIG. 3 is a cross-sectional view of a dried product container with a ring body of the drying device of the embodiment.

FIG. 4 is a front view of a dried product container with a ring body of the drying device of the embodiment.

FIG. 5 is a rear view of the dried product container with the ring body of the drying device of the embodiment.

FIG. 6 is a perspective view showing a drying apparatus according to a second embodiment of the present invention as seen through a main body container.

FIG. 7 is a cross-sectional view showing the drying device of the embodiment.

FIG. 8 is a perspective view of a dried product container with a baffle plate of the drying device of the embodiment.

FIG. 9 is a perspective view showing a baffle plate of the drying device of the embodiment.

FIG. 10 is a cross-sectional view of a dry product container with a ring body of a drying device according to a third embodiment of the present invention.

FIG. 11 is a front view of a dried product container with a ring body of the drying device of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body container 12 Dry gas supply port 14 Exhaust port 20 Rotation giving device 29 Power transmission device 30 Rotating part 32 Rotating frame 34 Dry material container 35 Fixed piece 36 Fixed piece 37 Bolt 38 Nut

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L113 AA06 AB03 AC08 AC68 AC74 AC76 CB40

Claims (6)

[Claims] 1. A main body container that is openable and closable and is substantially sealed when closed, a rotation applying device having a rotational force output portion disposed inside the main body container, and the rotational force output. A rotating frame rotatably supported by the unit, a drying container fixed in the rotating frame and having a large number of ventilation holes, and a drying device provided with a gas supply port and an exhaust port provided in the main body container. A drying apparatus, wherein the rotating frame is composed of a plurality of ring bodies, and each of the ring bodies is independently and detachably fixed to the dry matter container by fixing means. 2. The drying apparatus according to claim 1, wherein the dried product container is inclined with respect to a rotation axis of the rotating frame. 3. A plurality of sets of the rotation imparting device, the first roller and the second roller being provided inside the main body container and supporting a rotatable frame rotatably as one set. The drying device according to claim 1, further comprising a pair of rollers, wherein each set of rollers is linked by a power transmission unit. 4. The dry substance container is formed of a porous material or a mesh material, and a filter cloth having air permeability is replaceably provided inside the dry substance container. 4. The drying device according to any one of 1 to 3. 5. The drying device according to claim 1, further comprising a heating device such as a heater or a jacket for heating the inside of the main body container. 6. The drying apparatus according to claim 1, wherein a baffle fixed to the inside of the dry matter container or a removable baffle for holding a filter cloth is attached.