JPH0440170B2 - - Google Patents
Info
- Publication number
- JPH0440170B2 JPH0440170B2 JP63134895A JP13489588A JPH0440170B2 JP H0440170 B2 JPH0440170 B2 JP H0440170B2 JP 63134895 A JP63134895 A JP 63134895A JP 13489588 A JP13489588 A JP 13489588A JP H0440170 B2 JPH0440170 B2 JP H0440170B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- processing tank
- drive shaft
- drying
- granules
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 66
- 239000000843 powder Substances 0.000 claims description 55
- 239000008187 granular material Substances 0.000 claims description 53
- 238000003756 stirring Methods 0.000 claims description 31
- 238000005192 partition Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 18
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 239000012254 powdered material Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 16
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/08—Conditioning or physical treatment of the material to be shaped by using wave energy or particle radiation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/343—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects in combination with convection
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Toxicology (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Drying Of Solid Materials (AREA)
- Polyesters Or Polycarbonates (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、粉粒体の乾燥・結晶化装置、詳しく
は、主として合成樹脂から成る粉粒体の乾燥・結
晶化装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for drying and crystallizing powder and granules, and more particularly, to an apparatus for drying and crystallizing powder and granules mainly made of synthetic resin.
（従来の技術）
従来、合成樹脂材料から成る粉粒体を乾燥した
り、又、結晶性合成樹脂であるPET樹脂から成
る粉粒体を結晶化する装置においては、密閉状の
処理槽内に装入する粉粒体の下方から熱風を供給
して、粉粒体の乾燥或いは結晶化を行つていた
が、本出願人はマイクロ波による加熱が水分を含
む被加熱体の内部からの加熱であつて、粉粒体内
部に含まれる水分の表面への拡散に好都合である
ことに注目し、マイクロ波を用いて熱風加熱に対
し短時間で粉粒体の乾燥或いは結晶化を行える粉
粒体の乾燥・結晶化装置を提案している。（特願
昭62−314920号）
（発明が解決しようとする課題）
ところで、先に提案した乾燥・結晶化装置で
は、処理槽に装入する粉粒体にマイクロ波を放射
して乾燥或いは結晶化を行うと、マイクロ波の乱
反射によつて、粉粒体の加熱にムラが生じること
から、前記処理槽内に回転羽根を設けて、この回
転羽根の回転により粉粒体を撹拌することによつ
て粉粒体の加熱ムラを防いでいた。ところが、連
続的に粉粒体を前記処理槽に装入すると共に、前
記回転羽根で撹拌しながらマイクロ波加熱を行う
と、マイクロ波の乱反射による粉粒体の加熱ムラ
を避けることができるが、粉粒体の前記処理槽内
における滞留時間、即ち前記処理槽への装入から
排出までにマイクロ波加熱を受ける時間が不均一
になつて、加熱時間の不均一が生じ、この不均一
な加熱により加熱ムラが生じる問題があつた。(Prior art) Conventionally, in an apparatus for drying powder or granules made of synthetic resin material or for crystallizing powder or granules made of PET resin, which is a crystalline synthetic resin, a device is placed in a closed treatment tank. The powder and granules were dried or crystallized by supplying hot air from below the powder and granules to be charged. By focusing on the fact that it is convenient for the moisture contained inside the powder to diffuse to the surface, the powder can be dried or crystallized in a short time when heated with hot air using microwaves. We are proposing a body drying/crystallization device. (Patent Application No. 62-314920) (Problem to be Solved by the Invention) By the way, in the drying/crystallization apparatus proposed earlier, microwaves are radiated to the powder and granules charged into the processing tank to dry or crystallize them. When this process is carried out, the heating of the granular material becomes uneven due to the diffused reflection of microwaves, so a rotating blade is installed in the treatment tank, and the granular material is agitated by the rotation of this rotating blade. This prevents uneven heating of the powder and granules. However, if the powder and granules are continuously charged into the processing tank and heated with microwaves while being stirred by the rotating blade, uneven heating of the powder and granules due to diffuse reflection of microwaves can be avoided, but The residence time of the granular material in the processing tank, that is, the time during which it is subjected to microwave heating from charging to the processing tank to discharge, becomes uneven, resulting in uneven heating time, and this uneven heating This caused the problem of uneven heating.
本発明の目的は、マイクロ波の乱反射及び粉粒
体の処理槽内での滞留時間のバラツキによる加熱
ムラをなくして、マイクロ波による加熱により、
主として合成樹脂材料から成る粉粒体の全体とし
て均一な乾燥或いは結晶化を連続して行い得る乾
燥・結晶化装置を提供しようとするものである。 The purpose of the present invention is to eliminate heating unevenness caused by diffused reflection of microwaves and variations in residence time of powder and granular materials in a processing tank, and to achieve heating by microwaves.
It is an object of the present invention to provide a drying/crystallization apparatus capable of continuously and uniformly drying or crystallizing powder particles mainly made of synthetic resin material as a whole.
（課題を解決するための手段）
本発明は、長さ方向一側に材料入口１５を、他
側に材料出口１６をもつ横長状の処理槽１と、こ
の処理槽１内に装入する合成樹脂材料から成る粉
粒体にマイクロ波を放射するマイクロ波装置２と
を備えた粉粒体の乾燥・結晶化装置であつて、前
記処理槽１の下方内部に、該処理槽１の長さ方向
一側から他側に延びる駆動軸３を軸架し、この駆
動軸３に、該駆動軸３の長さ方向に沿つて複数の
円盤状隔壁４を設けて、隣接する各隔壁４間に、
隔離空間Ｓを形成すると共に、前記隔壁４に、各
隔離空間Ｓ内の粉粒体を撹拌する撹拌羽根５を設
けたのである。(Means for Solving the Problems) The present invention provides an oblong processing tank 1 having a material inlet 15 on one side in the length direction and a material outlet 16 on the other side, and a synthetic material charged into the processing tank 1. This drying/crystallization apparatus for powder and granular material includes a microwave device 2 that radiates microwaves to powder and granular material made of a resin material, and the length of the processing tank 1 is A drive shaft 3 extending from one side to the other in a direction is mounted, and a plurality of disc-shaped partition walls 4 are provided along the length direction of the drive shaft 3, so that a plurality of disk-shaped partition walls 4 are provided between adjacent partition walls 4. ,
In addition to forming the isolated spaces S, the partition walls 4 are provided with stirring blades 5 for stirring the powder and granular material in each isolated space S.
（作用）
各隔離空間Ｓ内で、駆動軸３の回転によつて、
撹拌羽根５が粉粒体を撹拌するから、処理槽１内
においてマイクロ波装置２から放射するマイクロ
波が乱反射しても、粉粒体の加熱ムラが生じない
し、また、前記処理槽１の長さ方向一側に材料入
口１５を、また他側に材料出口１６を設けると共
に、前記隔壁４には撹拌羽根５を設けているか
ら、前記材料入口１５から粉粒体の材料を連続し
て装入することにより、前記材料入口１５から装
入された材料は前記撹拌羽根５の回転に伴い撹拌
作用を受けながら、前記撹拌羽根５による材料の
押上げ作用で前記隔壁４の上方から前記材料出口
１６側に隣接する隔離空間Ｓに移動されることに
なるのであつて、前記材料の連続装入が継続する
限り入口側隔離空間Ｓから出口側隔離空間Ｓに材
料は順次移送され、前記材料出口１６から連続的
に排出させられるのである。(Function) Within each isolated space S, by the rotation of the drive shaft 3,
Since the stirring blades 5 stir the powder and granules, even if the microwaves emitted from the microwave device 2 are diffusely reflected in the processing tank 1, uneven heating of the powder and granules does not occur. Since a material inlet 15 is provided on one side in the width direction and a material outlet 16 is provided on the other side, and stirring blades 5 are provided on the partition wall 4, granular material can be continuously loaded from the material inlet 15. As a result, the material charged from the material inlet 15 is stirred by the rotation of the stirring blade 5, and the material is pushed up from above the partition wall 4 through the material outlet by the stirring blade 5. As long as the continuous charging of the material continues, the material will be sequentially transferred from the inlet-side isolation space S to the outlet-side isolation space S, and the material will be transferred to the isolation space S adjacent to the material outlet. It is continuously discharged from 16.
尚、前記材料入口１５からの材料装入を中断す
ると前記駆動軸３を駆動しても材料の移送作用は
なくなるが、このとき前記撹拌羽根５による撹拌
作用は継続することになる。 It should be noted that if the material charging from the material inlet 15 is interrupted, the material transfer action will cease even if the drive shaft 3 is driven, but at this time the stirring action by the stirring blade 5 will continue.
以上のように、前記駆動軸３を駆動して前記材
料入口１５から材料を連続して装入するとき、前
記撹拌羽根５の回転により撹拌作用を受けながら
材料出口１６側に隣接する隔離空間Ｓに順次移送
されるから、粉粒体の前記処理槽１内に滞留し
て、マイクロ波加熱を受ける滞留時間のバラツキ
がなくなり、従つて、前記処理槽１内に連続装入
する合成樹脂材料から成る粉粒体にマイクロ波を
放射して、該粉粒体を全体として均一に、しか
も、連続的に乾燥或いは結晶化することができ
る。 As described above, when the drive shaft 3 is driven to continuously charge the material from the material inlet 15, the isolation space S adjacent to the material outlet 16 is subjected to the stirring action by the rotation of the stirring blade 5. Since the particles are sequentially transferred to the processing tank 1, there is no variation in the residence time during which the powder and granules remain in the processing tank 1 and undergo microwave heating. By irradiating microwaves to the powder or granule, the powder or granule can be dried or crystallized uniformly and continuously as a whole.
（実施例）
第１図及び第２図は本発明にかゝる乾燥・結晶
化装置における処理槽１の縦断面及び横断面を示
し、該処理槽１は上壁１１、下壁１２、両側壁１
３，１３及び両端壁１４，１４により構成され、
横長状で、かつ密閉状に形成されている。そし
て、前記上壁１１には、導波管２１を備えたマイ
クロ装置２を複数直列状に配置して、前記処理槽
１内部に前記導波管２１からマイクロ波を放射で
きるようにしている。又、上壁１１の一側端部に
は、材料入口１５を設けている。(Example) FIG. 1 and FIG. 2 show a longitudinal section and a cross section of a processing tank 1 in a drying/crystallization apparatus according to the present invention, and the processing tank 1 has an upper wall 11, a lower wall 12, and both sides. wall 1
3, 13 and both end walls 14, 14,
It is oblong and closed. A plurality of microdevices 2 each having a waveguide 21 are arranged in series on the upper wall 11 so that microwaves can be emitted from the waveguide 21 into the processing tank 1 . Further, a material inlet 15 is provided at one end of the upper wall 11.
一方、前記処理槽１の下壁１２は、第２図に示
すように、断面半円形状にして、該下壁１２と前
記両側壁１３，１３とにより、前記処理槽１の横
断面をＵ字形とし、前記下壁１２における前記材
料入口１５に対して長さ方向反対側の端部には、
粉粒体を連続して排出するロータリーフイーダ１
７を備えた材料出口１６を設け、該材料出口１６
の前記ロータリーフイーダ１７の上方部に脱湿空
気供給口１８を取付けている。 On the other hand, the lower wall 12 of the processing tank 1 has a semicircular cross section as shown in FIG. The end portion of the lower wall 12 on the opposite side in the length direction with respect to the material inlet 15 has a
Rotary feeder 1 that continuously discharges powder and granules
A material outlet 16 is provided with a material outlet 16 having a
A dehumidified air supply port 18 is attached to the upper part of the rotary leaf feeder 17.
しかして本発明はこのように構成した前記処理
槽１の下方内部に、該処理槽１の長さ方向一側か
ら他側に延びる駆動軸３を軸架し、この駆動軸３
に複数の円盤状隔壁４を前記駆動軸３の長さ方向
に沿つて設け、隣接する各隔壁４間に、隔離空間
Ｓを形成すると共に、前記隔壁４に、各隔離空間
Ｓ内の粉粒体を撹拌する撹拌羽根５を設けたので
ある。 Therefore, in the present invention, a drive shaft 3 extending from one side in the length direction of the processing tank 1 to the other side is mounted in the lower interior of the processing tank 1 configured as described above.
A plurality of disk-shaped partition walls 4 are provided along the length direction of the drive shaft 3, and an isolation space S is formed between each adjacent partition wall 4. A stirring blade 5 was provided to stir the body.
具体的には、前記処理槽１の下方内部には、該
処理槽１の長さ方向に延びる駆動軸３を貫通させ
て、その軸端側を前記両端壁１４，１４に軸架す
ると共に、前記駆動軸３における材料入口１５側
の端部を前記端壁１４より外方に突出させて、該
端壁１４に付設するモータ等よりなる駆動装置３
１に接続して、前記駆動軸３を回転させるように
している。 Specifically, a drive shaft 3 extending in the length direction of the processing tank 1 is passed through the lower interior of the processing tank 1, and its shaft end side is mounted on the both end walls 14, 14, A drive device 3 comprising a motor or the like attached to the end wall 14 with an end of the drive shaft 3 on the material inlet 15 side protruding outward from the end wall 14.
1 to rotate the drive shaft 3.
そして、該駆動軸３には、複数の円盤状隔壁４
……を、前記軸３の長さ方向に一定間隔Ｌを置い
て、かつ前記各円盤状隔壁４の外周面が、半円形
状の前記下壁１２の内面に対し所定間隙を置いて
対向するように取付け、隣接する各隔壁４間に隔
離空間Ｓを形成すると共に、第３図に示すよう
に、前記各円盤状隔壁４の外周縁端部側に、板状
の撹拌羽根５を、前記駆動軸３を中心として120
度の位相角度で、かつ、前記駆動軸３に対して平
行で、かつ、材料入口１５側方向に延出するよう
に設けるのである。 The drive shaft 3 includes a plurality of disk-shaped partition walls 4.
. . . are arranged at a constant interval L in the length direction of the shaft 3, and the outer circumferential surface of each disc-shaped partition wall 4 faces the inner surface of the semicircular lower wall 12 with a predetermined gap. At the same time, as shown in FIG. 120 around drive shaft 3
It is provided so as to have a phase angle of 100 degrees, parallel to the drive shaft 3, and extending in the side direction of the material inlet 15.
本発明にかゝる粉粒体の乾燥・結晶化装置は以
上のように構成するのであつて、前記駆動装置３
１による前記駆動軸３の回転により前記隔壁４を
回転させると共に、前記材料出口１６のロータリ
ーフイーダ１７を駆動し、該ロータリーフイーダ
１７により粉粒体を処理槽１より排出するように
し、そして前記材料入口１５から粉粒体を順次装
入し、前記マイクロ波装置２からのマイクロ波を
導波管２１を経て前記処理槽１に装入され、後記
するように順次移送する粉粒体に放射して、該粉
粒体を加熱し、粉粒体の乾燥或いは結晶化を連続
的に行うのである。尚、粉粒体の水分はマイクロ
波による加熱によつて蒸発し、前記脱湿空気供給
口１８から供給される脱湿空気と共に、前記上壁
１１の端部に設けた前記材料入口１５から前記処
理槽１の外方へ排出される。 The apparatus for drying and crystallizing powder or granular material according to the present invention is constructed as described above, and the drive device 3
1 rotates the partition wall 4 by rotating the drive shaft 3, and also drives the rotary leaf feeder 17 of the material outlet 16, so that the rotary leaf feeder 17 discharges the granular material from the processing tank 1, and The powder and granules are sequentially charged from the material inlet 15, and the microwave from the microwave device 2 is applied to the powder and granules that are charged into the processing tank 1 through the waveguide 21 and transferred sequentially as described later. The granular material is heated by radiation to continuously dry or crystallize the granular material. The moisture in the powder is evaporated by microwave heating, and together with the dehumidified air supplied from the dehumidified air supply port 18, the water is evaporated from the material inlet 15 provided at the end of the upper wall 11. It is discharged to the outside of the processing tank 1.
このようにしての粉粒体の乾燥或いは結晶化を
行う場合、各隔離空間Ｓ内で前記撹拌羽根５が粉
粒体を撹拌するから、前記処理槽１内におけるマ
イクロ波の乱反射による加熱ムラがなくなる。ま
た、前記材料入口１５から材料を連続的に装入す
ることにより、この材料は前記材料入口１５に対
応する隔離空間Ｓに入り、この隔離空間Ｓで前記
撹拌羽根５による撹拌作用を受けると共に、第６
図に示した通り、前記撹拌羽根５の回転で押上げ
られるのであつて、前記羽根５で押上げられた材
料の一部は前記隔壁４の上方から材料出口１６側
に隣接する隔離空間Ｓに移動することになるので
ある。 When drying or crystallizing powder or granular material in this manner, the stirring blades 5 stir the powder or granular material in each isolated space S, so that uneven heating due to diffused reflection of microwaves in the processing tank 1 is prevented. It disappears. Furthermore, by continuously charging the material from the material inlet 15, the material enters the isolated space S corresponding to the material inlet 15, and is subjected to the stirring action by the stirring blade 5 in this isolated space S. 6th
As shown in the figure, the material is pushed up by the rotation of the stirring blade 5, and a part of the material pushed up by the blade 5 flows from above the partition wall 4 into the isolated space S adjacent to the material outlet 16 side. They will have to move.
そして、この隣接する隔離空間Ｓに移動した材
料は、前記同様、該隔離空間Ｓ内の撹拌羽根５で
撹拌作用を受けると共に、前記羽根５の回転で押
上げられ、前記した作用でこの隔離空間Ｓに対し
材料出口１６側に隣接する隔離空間Ｓに移動する
のであつて、斯かる作用で前記材料は順次出口側
に移送される。 Then, the material moved to this adjacent isolated space S is stirred by the stirring blade 5 in the isolated space S, as described above, and is pushed up by the rotation of the blade 5. The material is moved to the isolation space S adjacent to the material outlet 16 side with respect to S, and by this action, the material is sequentially transferred to the outlet side.
尚、この移送は前記材料入口１５から材料装入
が連続して装入される限り継続するのであつて、
前記入口１５からの材料の装入がなくなつたり、
材料排出がなくなると、前記駆動軸３が駆動され
ていても撹拌作用は継続するが移送はなくなる。 Note that this transfer continues as long as the material is continuously charged from the material inlet 15, and
When the material is no longer charged from the inlet 15,
When the material is no longer discharged, the stirring action continues even if the drive shaft 3 is driven, but the transport is no longer performed.
また、材料装入が連続して行われている場合、
各隔離空間Ｓの材料レベルは、材料入口１５側が
高く、材料出口１６側が低くなるので、材料出口
側から入口側への移動はない。 In addition, if material charging is carried out continuously,
The material level in each isolated space S is higher on the material inlet 15 side and lower on the material outlet 16 side, so there is no movement from the material outlet side to the inlet side.
しかして、前記材料入口１５からの連続的な材
料の装入と、前記ロータリーフイーダ１７からの
連続的な粉粒体の排出とにより、各隔離空間Ｓ内
の粉粒体は、前記撹拌羽根５により撹拌作用を受
けて、前記材料出口１６側に隣接する隔離空間Ｓ
に順次移動し、また、この移動は前記材料入口１
５から連続して装入する材料装入量によつて設定
できるから、粉粒体が前記処理槽１内に所定時間
滞留させられるし、また、マイクロ波加熱を受け
る滞留時間のバラツキを少なくできるのである。 By continuously charging the material from the material inlet 15 and continuously discharging the powder from the rotary feeder 17, the powder in each isolated space S is 5, the isolated space S adjacent to the material outlet 16 side is
This movement sequentially moves to the material inlet 1.
Since the amount of material to be charged continuously from 5 can be set, the powder and granules can be allowed to stay in the processing tank 1 for a predetermined period of time, and variations in the residence time when subjected to microwave heating can be reduced. It is.
第４図は、一例として第３図に示したＤ，Ｌ，
l1，l2をそれぞれ150，100，70，30mmとすると共
に、PET樹脂から成る３〜５mmφの粉粒体を時
間当たり60Kgの速度で、滞留時間20分を目標とし
たときの材料出口１６における粉粒体の滞留時間
頻度分布の一例を示すものであつて、ピークがは
つきりしている。 FIG. 4 shows, as an example, D, L,
Material outlet 16 when l 1 and l 2 are set to 150, 100, 70, and 30 mm, respectively, and powder and granules made of PET resin with a diameter of 3 to 5 mm are fed at a rate of 60 kg per hour with a residence time of 20 minutes. This figure shows an example of the residence time frequency distribution of powder and granular materials in which the peaks are sharp.
前記滞留時間頻度分布は、前記駆動軸３が粉粒
体によつて隠れる程度に維持しながら、所定速度
で粉粒体を連続装入すると共に、撹拌羽根５で撹
拌し、他の粉粒体と識別できるように着色した粉
粒体を一定量装入し、前記出口１６から排出する
粉粒体に含まれる着色粉粒体の数を算えたもので
ある。 The residence time frequency distribution is such that the powder and granules are continuously charged at a predetermined speed while maintaining the drive shaft 3 to the extent that they are hidden by the powder and granules, and the stirring blade 5 stirs the powder and granules, and other powder and granules are charged. The number of colored powders contained in the powder discharged from the outlet 16 is calculated by charging a certain amount of powder and granules that are colored so that they can be identified.
尚、前記円盤状隔壁４の数を増やして、前記隔
離空間Ｓの数を多くすると、粉粒体の滞留時間頻
度分布のピークが鋭くなり、粉粒体の滞留時間を
一層均一化させることができる。又前記撹拌羽根
５を円盤状隔壁４の片側に設けたが、両側に設け
てもよく、更に第５図に示すように、前記撹拌羽
根５によつて互いに隣接する円盤状隔壁４を連結
してもよい。このように連結すると、枠組が形成
され、全体として強度が向上する。 Incidentally, when the number of the disk-shaped partition walls 4 is increased and the number of the isolation spaces S is increased, the peak of the residence time frequency distribution of the powder and granules becomes sharper, and the residence time of the powder and granules can be made more uniform. can. Further, although the stirring blades 5 are provided on one side of the disk-shaped partition wall 4, they may be provided on both sides.Further, as shown in FIG. 5, adjacent disk-shaped partition walls 4 may be connected by the stirring blades 5. It's okay. This connection forms a framework and increases overall strength.
又、本実施例に示した如く円盤状隔壁４の外周
縁部に前記撹拌羽根５を設けるのが好ましいが、
半径方向内側に設けてもよい。更に前記撹拌羽根
５の数及び形状は、本実施例に示した数及び形状
に限るものでない。 Further, as shown in this embodiment, it is preferable to provide the stirring blades 5 on the outer peripheral edge of the disk-shaped partition wall 4;
It may be provided on the inside in the radial direction. Further, the number and shape of the stirring blades 5 are not limited to the number and shape shown in this embodiment.
（発明の効果）
以上説明した如く本発明は、長さ方向一側に材
料入口１５を、他側に材料出口１６をもつ横長状
の処理槽１と、この処理槽１内に装入する合成樹
脂材料から成る粉粒体にマイクロ波を放射するマ
イクロ波装置２とを備えた粉粒体の乾燥・結晶化
装置であつて、前記処理槽１の下方内部に、該処
理槽１の長さ方向一側から他側に延びる駆動軸３
を軸架し、この駆動軸３に、該駆動軸３の長さ方
向に沿つて複数の円盤状隔壁４を設けて、隣接す
る各隔壁４間に、隔離空間Ｓを形成すると共に、
前記隔壁４に、各隔離空間Ｓ内の粉粒体を撹拌す
る撹拌羽根５を設けたから、マイクロ波の乱反射
及び粉粒体の処理槽内における滞留時間のバラツ
キによる加熱ムラをなくして、マイクロ波による
加熱により、主として合成樹脂材料から成る粉粒
体の、全体として均一な乾燥或いは結晶化を連続
して行い得る粉粒体の乾燥・結晶化装置を提供す
ることができるのである。(Effects of the Invention) As explained above, the present invention comprises a horizontally long processing tank 1 having a material inlet 15 on one side in the length direction and a material outlet 16 on the other side, and a composite material charged into the processing tank 1. This drying/crystallization apparatus for powder and granular material includes a microwave device 2 that radiates microwaves to powder and granular material made of a resin material, and the length of the processing tank 1 is A drive shaft 3 extending from one direction to the other side
A plurality of disc-shaped partition walls 4 are provided on the drive shaft 3 along the length direction of the drive shaft 3, and an isolation space S is formed between each adjacent partition wall 4.
Since the partition wall 4 is provided with stirring blades 5 for stirring the powder and granular materials in each isolated space S, uneven reflection of microwaves and uneven heating due to variation in residence time of the powder and granular materials in the processing tank are eliminated, and microwave It is possible to provide a drying/crystallization apparatus for powder and granular material that can continuously and uniformly dry or crystallize powder and granular material mainly made of a synthetic resin material by heating with .
第１図は本発明にかゝる粉粒体の乾燥・結晶化
装置の概略縦断面図、第２図は第１図−線断
面図、第３図は円盤状隔壁を備えた駆動軸の部分
斜視図、第４図は滞留時間頻度分布図、第５図は
他の実施例を示す概略縦断面図、第６図は回転羽
根による粉粒体の押上状態を示す説明図である。
１……処理槽、３……駆動軸、４……円盤状隔
壁、５……撹拌羽根、１５……材料入口、１６…
…材料出口、Ｓ……隔離空間。
Fig. 1 is a schematic longitudinal cross-sectional view of a powder drying/crystallization apparatus according to the present invention, Fig. 2 is a cross-sectional view taken along the line shown in Fig. 1, and Fig. 3 is a schematic longitudinal sectional view of a drying/crystallizing apparatus for powder and granular materials according to the present invention. FIG. 4 is a partial perspective view, FIG. 4 is a residence time frequency distribution diagram, FIG. 5 is a schematic vertical cross-sectional view showing another embodiment, and FIG. 6 is an explanatory diagram showing the state of pushing up of powder and granular material by rotating blades. DESCRIPTION OF SYMBOLS 1... Processing tank, 3... Drive shaft, 4... Disc-shaped partition, 5... Stirring blade, 15... Material inlet, 16...
...Material exit, S...isolated space.
Claims (1)
出口１６をもつ横長状の処理槽１と、この処理槽
１内に装入する合成樹脂材料から成る粉粒体にマ
イクロ波を放射するマイクロ波装置２とを備えた
粉粒体の乾燥・結晶化装置であつて、前記処理槽
１の下方内部に、該処理槽１の長さ方向一側から
他側に延びる駆動軸３を軸架し、この駆動軸３
に、該駆動軸３の長さ方向に沿つて複数の円盤状
隔壁４を設けて、隣接する各隔壁４間に、隔離空
間Ｓを形成すると共に、前記隔壁４に、各隔離空
間Ｓ内の粉粒体を撹拌する撹拌羽根５を設けたこ
とを特徴とする粉粒体の乾燥・結晶化装置。1. Microwaves are radiated to a horizontally elongated processing tank 1 having a material inlet 15 on one side in the length direction and a material outlet 16 on the other side, and to a powdered material made of a synthetic resin material charged into this processing tank 1. This drying/crystallization apparatus for powder and granular materials is equipped with a microwave device 2 for drying and crystallizing powder, and a drive shaft 3 extending from one side in the length direction of the processing tank 1 to the other side is provided in the lower interior of the processing tank 1. This drive shaft 3
A plurality of disk-shaped partition walls 4 are provided along the length direction of the drive shaft 3 to form an isolation space S between each adjacent partition wall 4, and the partition wall 4 is provided with a plurality of disc-shaped partition walls 4 along the length direction of the drive shaft 3. A device for drying and crystallizing powder and granular material, characterized in that a stirring blade 5 for stirring the powder and granular material is provided.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134895A JPH01301310A (en) | 1988-05-31 | 1988-05-31 | Drying/crystallizing device of powdery or granular body |
| KR1019890003980A KR970010451B1 (en) | 1988-05-31 | 1989-03-29 | Drying and crystallizing apparatus for granules |
| US07/330,783 US4954681A (en) | 1988-05-31 | 1989-03-30 | Drying and crystallizing apparatus for granules, which employs a microwave device |
| DE68921669T DE68921669T2 (en) | 1988-05-31 | 1989-05-31 | Device for drying and crystallizing granules. |
| EP89305440A EP0345020B1 (en) | 1988-05-31 | 1989-05-31 | Drying and crystallizing apparatus for granules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63134895A JPH01301310A (en) | 1988-05-31 | 1988-05-31 | Drying/crystallizing device of powdery or granular body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01301310A JPH01301310A (en) | 1989-12-05 |
| JPH0440170B2 true JPH0440170B2 (en) | 1992-07-02 |
Family
ID=15139032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63134895A Granted JPH01301310A (en) | 1988-05-31 | 1988-05-31 | Drying/crystallizing device of powdery or granular body |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH01301310A (en) |
| KR (1) | KR970010451B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2514231Y2 (en) * | 1990-04-05 | 1996-10-16 | 株式会社松井製作所 | Microwave continuous dryer |
| KR100864527B1 (en) * | 2007-06-08 | 2008-10-21 | 한국기계연구원 | Plastic high efficiency drying equipment and drying method for plastic high efficiency drying equipment |
| JP2015137144A (en) * | 2014-01-20 | 2015-07-30 | 株式会社カワタ | Particulate matter feeding device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5599573A (en) * | 1979-01-24 | 1980-07-29 | Hitachi Ltd | Microwave drier |
| JPS58117954A (en) * | 1981-12-29 | 1983-07-13 | Nara Kikai Seisakusho:Kk | Heat exchanger for powder particles |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2516466Y2 (en) * | 1988-04-11 | 1996-11-06 | ホソカワミクロン株式会社 | Screw feeder |
-
1988
- 1988-05-31 JP JP63134895A patent/JPH01301310A/en active Granted
-
1989
- 1989-03-29 KR KR1019890003980A patent/KR970010451B1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5599573A (en) * | 1979-01-24 | 1980-07-29 | Hitachi Ltd | Microwave drier |
| JPS58117954A (en) * | 1981-12-29 | 1983-07-13 | Nara Kikai Seisakusho:Kk | Heat exchanger for powder particles |
Also Published As
| Publication number | Publication date |
|---|---|
| KR890017514A (en) | 1989-12-16 |
| JPH01301310A (en) | 1989-12-05 |
| KR970010451B1 (en) | 1997-06-26 |
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