JPS626479Y2 - - Google Patents
Info
- Publication number
- JPS626479Y2 JPS626479Y2 JP4823983U JP4823983U JPS626479Y2 JP S626479 Y2 JPS626479 Y2 JP S626479Y2 JP 4823983 U JP4823983 U JP 4823983U JP 4823983 U JP4823983 U JP 4823983U JP S626479 Y2 JPS626479 Y2 JP S626479Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotating drum
- heating device
- drum
- top plate
- rotating
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 73
- 230000006698 induction Effects 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000005674 electromagnetic induction Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000004020 conductor Substances 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007790 scraping Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- General Induction Heating (AREA)
- Drying Of Solid Materials (AREA)
Description
【考案の詳細な説明】
本考案は粉体などの被乾燥処理物を収納した回
転ドラムを外部から電磁誘導加熱方式（うず電流
による加熱）を利用して直接加熱し、回転ドラム
内の被乾燥処理物（以下粉体という）を乾燥させ
るようにした回転ドラムの加熱装置に関する。[Detailed description of the invention] This invention directly heats the rotating drum containing the material to be dried such as powder from the outside using an electromagnetic induction heating method (heating by eddy current). The present invention relates to a rotating drum heating device for drying a processed material (hereinafter referred to as powder).
近年、粉末食品や粉末飼料などの粉体を乾燥す
る装置は種々提案されているが、粉体を効率よく
乾燥するには、通常、粉体を回転ドラム内に収容
し、これを回転ドラム内で撹拌しながら乾燥する
方法が採用されている。そして、粉体の乾燥手段
としては、例えば、回転ドラム内に温水を循環さ
せる温水管を配管したり、あるいは回転ドラム内
に温風を吹込んだりして、回転ドラム内を温水又
は温風の熱により加温して粉体の乾燥処理を行つ
ていた。しかし、これらの方法は、温水管が結露
していたりすると粉体に悪影響を与え、又、温風
を直接回転ドラム内に給送する場合は、粉体がド
ラム内で舞い上つてしまい、効率よく乾燥させる
ことが困難であるとともに、温水や温風を供給す
るための乾燥設備の構造が複雑化する欠点があつ
た。 In recent years, various devices have been proposed for drying powder such as powdered foods and powdered feed, but in order to efficiently dry powder, the powder is usually stored in a rotating drum and then A method of drying while stirring is used. As a method for drying the powder, for example, hot water pipes for circulating hot water may be installed in the rotating drum, or hot air may be blown into the rotating drum. The powder was dried by heating. However, with these methods, condensation in the hot water pipes will have a negative effect on the powder, and if hot air is directly fed into the rotating drum, the powder will fly up inside the drum, reducing efficiency. It is difficult to dry well, and the structure of the drying equipment for supplying hot water and hot air is complicated.
このため、最近では電磁誘導加熱方式を利用し
て回転ドラムを直接加熱するようにした乾燥装置
が開発されている。例えば、実公昭48−40190号
公報に記載されている回転乾燥機は、回転ドラム
内の軸線方向に銅，アルミニウムの電気導体を架
設し、この導体に低電圧大電流を供給すると、導
体からの誘導電流により回転ドラムが加熱され、
被乾燥物は加熱面と接触して乾燥する構造になつ
ている。しかし、この回転乾燥機は電気導体が回
転ドラム内を貫通して設置されているので、被乾
燥物の投入の妨げになるばかりか、回転ドラムを
必要に応じて洗浄する際は、電気導体を支持架台
から取外さなければならないので非常に手間がか
かり面倒であつた。この欠点を解消するために、
例えば、特公昭53−1937号公報に記載されている
乾燥加熱装置のように、回転ドラムの外周に加熱
装置を形成し、この加熱装置は回転ドラムの外周
面に、防錆層と、その外側の誘導磁気層と、誘導
磁気層の外周に巻成した耐熱性粘着テープ層と、
その外側に保温層及び非励磁層とを備えてなり、
加熱装置の誘導磁気層に通電することによつて生
ずる電磁誘導加熱作用により、回転ドラム自体を
加熱するように構成されている。この乾燥加熱装
置の場合、前述の回転乾燥機のように、ドラム内
に電気導体が配置されていないので、材料の投入
を妨げたり、ドラム自体の洗浄に多くの手間がか
からない反面、ドラムの外周に加熱装置が固定さ
れているため、電磁誘導加熱作用に最も影響を与
える誘導磁気層が故障した場合、その補修・交換
が困難であるとともに、回転ドラムの外周に加熱
装置を直接設置する構造になつているので、回転
ドラムの水洗いが行えず、かつ、加熱装置の製
作，組立に多くの手間を要する欠点があつた。 For this reason, recently, a drying apparatus has been developed that uses an electromagnetic induction heating method to directly heat a rotating drum. For example, the rotary dryer described in Japanese Utility Model Publication No. 48-40190 has copper and aluminum electrical conductors installed in the axial direction within the rotating drum, and when a low voltage and large current is supplied to the conductors, the The rotating drum is heated by the induced current,
The structure is such that the object to be dried is dried by contacting the heating surface. However, in this rotary dryer, the electrical conductor is installed through the rotating drum, which not only obstructs the loading of the material to be dried, but also makes it difficult to clean the electrical conductor when cleaning the rotating drum as necessary. Since it had to be removed from the support frame, it was very time consuming and troublesome. In order to eliminate this drawback,
For example, as in the drying and heating device described in Japanese Patent Publication No. 1937-1937, a heating device is formed on the outer periphery of a rotating drum, and this heating device has a rust-proofing layer on the outer periphery of the rotating drum and a layer on the outside thereof. an induced magnetic layer, a heat-resistant adhesive tape layer wound around the outer periphery of the induced magnetic layer,
It is equipped with a heat insulating layer and a non-excitation layer on the outside thereof,
The rotary drum itself is heated by the electromagnetic induction heating effect produced by energizing the induction magnetic layer of the heating device. In the case of this drying/heating device, unlike the above-mentioned rotary dryer, there is no electrical conductor placed inside the drum, so it does not interfere with the loading of materials and does not require much effort to clean the drum itself. Because the heating device is fixed to the rotating drum, if the induction magnetic layer, which has the greatest effect on the electromagnetic induction heating effect, breaks down, it is difficult to repair or replace it. Because of the long structure, the rotating drum cannot be washed with water, and the manufacturing and assembly of the heating device requires a lot of effort.
本考案は上述の欠点を除去して、電磁誘導加熱
方式を採用した加熱装置を、回転ドラムの外周側
に、この回転ドラムから一定の間隔引き離した状
態で回転ドラムと対応させて起倒可能に設置し、
加熱装置の故障時等にその補修作業を迅速容易に
行えるようにするとともに、回転ドラムを加熱装
置と分離した状態で容易に水洗いを可能とした回
転ドラムの加熱装置を提供することにある。以下
本考案の実施例を図面により説明すると、１は回
転型乾燥機の基台で、この基台１の四隅には、軸
受２が配設されており、これら軸受２は第１図の
左右方向に位置する軸受２，２間に回転軸３をそ
れぞれ互いに平行させて回転自在に挿通し、上記
回転軸３の両端部には、基台１と接触しないよう
に硬質ゴム等耐熱性に優れた材料からなる摩擦車
４が固着されている。５は回転軸３の中央寄りの
位置に取付けられたプーリーで、このプーリー５
は基台１の裏面に取付けた電動機６との間で、基
台１の中央に切欠いた切欠口７を通して張架した
ベルト８にて駆動結合されて、上記電動機６の起
動により摩擦車４を回転させる。９は鋼板により
中空円筒状に形成されて摩擦車４上に回転自在に
乗載される回転ドラムで、その内側面には周方向
に所要の間隔を保つて複数本の掻上板１０が回転
ドラム９の軸線に沿つて配設されており、外側面
には摩擦車４に近接して突起１が周設されてい
る。１２は回転ドラム９の軸方向両端の開口部を
開閉自在に閉鎖する中空円錐台状の蓋体で、これ
ら蓋体１２の頂部には網目の細かい金網１３を貼
付した小径な脱湿孔１４が設けられている。１５
は蓋体１２を回転ドラム９に固定する係止具、１
６は回転ドラム９の胴部中央を第２図に示すよう
に、回転ドラム９の外周を両側から挾むようにし
て基台１上の前、後部（第２図の左右方向側）に
直立して取付けられた電磁誘導加熱方式を採用し
た加熱装置で、その構造を第３図により詳述する
と、回転ドラム９の胴部に沿つて円弧状に形成さ
れた樹脂製のトツププレート１７と、このトツプ
プレート１７の弧状部内側に貼付等の手段によつ
て取付けられた偏平な空心渦巻状の誘導加熱コイ
ル１８と、この加熱コイル１８の外側を磁気的に
遮弊するフエライトコア等からなる磁気遮弊板１
９とを備え、上記誘導加熱コイル１８を回転ドラ
ム９から遠ざかる方向に位置させて、上記トツプ
プレート１７を、移動枠体２０の内側にこの移動
枠体２０の開口部２０ａからトツププレート１７
を回転ドラム９側に臨ませて取付け、更に、上記
移動枠体２０は、第３図に示すように、回転ドラ
ム９と対向する側にトツププレート１７を露出さ
せるための窓孔２１ａを開口した函体２１内に収
納し、更に、移動枠体２０の上下部に固着されて
回転ドラム９と反対側に突出させたガイド棒２２
に、コイルばね２３を通して上記ガイド棒２２を
函体２１内に突設した止着片２４に支着すること
により、上記移動枠体２０はコイルばね２３に附
勢されて函体２１の窓孔２１ａ側に常時押圧保持
されている。２５は移動枠体２０両側（第１図の
左右方向）の上下部に回転ドラム９の軸線と平行
に突設した固定軸で、この固定軸２５は、函体２
１に上記固定軸２５が貫通する位置において横長
に穿設された長孔２６を貫通して函体２１外に突
出されて、その突出端に回転ドラム９の胴部と摺
接する回転ローラー２７が回転可能に取付けられ
ている。２８は加熱装置１６の支持脚で、基台１
の前、後部の端部にそれぞれ取付けられており、
上記加熱装置１６は、函体２１底部の後部側に垂
設した取付金具２９を上記支持脚２８に枢軸３０
を介して連結することにより、基台１上に支持脚
２８を介して起倒可能に取付けられており、常時
は、枢軸３０と、枢軸３０の下側において支持脚
２８に設けた縦長な嵌合孔３１に上下動可能に挿
通した支持軸３２との間に張架した引張ばね３３
の力により、上記支持軸３２を、取付金具２９の
下端部に切欠いた係合孔３４に係合保持させて、
加熱装置１６を基台１上に垂直に保持させてい
る。 The present invention eliminates the above-mentioned drawbacks and makes it possible to raise and lower a heating device that uses an electromagnetic induction heating method by placing it on the outer periphery of the rotating drum and separating it from the rotating drum by a certain distance. installed,
To provide a heating device for a rotating drum that allows quick and easy repair work when the heating device breaks down, and also allows the rotating drum to be easily washed with water in a state separated from the heating device. Below, an embodiment of the present invention will be explained with reference to the drawings. Reference numeral 1 denotes a base of a rotary dryer, and bearings 2 are disposed at the four corners of this base 1. A rotary shaft 3 is inserted parallel to each other between the bearings 2 and 2 located in the direction so as to be rotatable. Both ends of the rotary shaft 3 are made of hard rubber or other material with excellent heat resistance so as not to come into contact with the base 1. A friction wheel 4 made of a similar material is fixedly attached thereto. 5 is a pulley installed near the center of the rotating shaft 3;
is drivingly coupled to an electric motor 6 attached to the back of the base 1 by a belt 8 stretched through a notch 7 cut out in the center of the base 1, and when the electric motor 6 starts, the friction wheel 4 is driven. Rotate. Reference numeral 9 denotes a rotary drum formed into a hollow cylindrical shape from a steel plate and rotatably mounted on the friction wheel 4, and a plurality of scraping plates 10 are rotated on the inner surface thereof at required intervals in the circumferential direction. It is arranged along the axis of the drum 9, and protrusions 1 are provided around the outer surface of the drum 9 in close proximity to the friction wheel 4. Reference numeral 12 denotes a hollow truncated cone-shaped lid body that freely opens and closes the openings at both ends of the rotating drum 9 in the axial direction, and a small-diameter dehumidification hole 14 with a fine-mesh wire mesh 13 attached to the top of the lid body 12 is provided. It is provided. 15
1 is a locking tool for fixing the lid body 12 to the rotating drum 9;
6 is mounted upright on the front and rear sides of the base 1 (left and right sides in FIG. 2) with the center of the body of the rotating drum 9 sandwiching the outer periphery of the rotating drum 9 from both sides, as shown in FIG. This heating device employs an electromagnetic induction heating method, and its structure is explained in detail with reference to FIG. A flat, air-centered spiral induction heating coil 18 attached to the inside of the arc-shaped portion of 17 by means of pasting or the like, and a magnetic shielding plate made of a ferrite core or the like that magnetically shields the outside of this heating coil 18. 1
9, the induction heating coil 18 is positioned in a direction away from the rotating drum 9, and the top plate 17 is inserted into the movable frame 20 from the opening 20a of the movable frame 20.
The movable frame 20 is mounted facing the rotating drum 9 side, and the movable frame 20 is further provided with a window hole 21a for exposing the top plate 17 on the side facing the rotating drum 9, as shown in FIG. Guide rods 22 are housed in the box 21 and are fixed to the upper and lower portions of the movable frame 20 to protrude on the side opposite to the rotating drum 9.
By supporting the guide rod 22 to a fastening piece 24 protruding inside the case 21 through a coil spring 23, the movable frame 20 is biased by the coil spring 23 and closes in the window hole 21a of the case 21. It is always pressed and held on the side. Reference numeral 25 denotes a fixed shaft protruding from the upper and lower parts of both sides of the movable frame 20 (in the left-right direction in FIG. 1) parallel to the axis of the rotating drum 9;
1, a rotary roller 27 is protruded out of the case 21 through a long hole 26 formed horizontally at a position where the fixed shaft 25 passes through, and is in sliding contact with the body of the rotary drum 9 at its protruding end. Rotatably mounted. 28 is a supporting leg of the heating device 16, which is attached to the base 1.
are installed at the front and rear ends of the
The heating device 16 has a mounting bracket 29 vertically installed on the rear side of the bottom of the box 21 attached to the support leg 28 with a pivot 30.
It is attached to the base 1 via the support leg 28 so that it can be raised and lowered. A tension spring 33 is stretched between a support shaft 32 inserted into a matching hole 31 so as to be movable up and down.
The force causes the support shaft 32 to be engaged and held in the engagement hole 34 cut out in the lower end of the mounting bracket 29,
A heating device 16 is held vertically on the base 1.
次に、動作について説明すると、先づ、加熱装
置１６を、枢軸３０を中心としてそれぞれ回転ド
ラム９から遠ざかる方向に引き倒すようにする。
すると、支持脚２８に取付けられた支持軸３２
は、取付金具２９の係合孔３４の角部により引張
ばね３３の力に抗して一旦嵌合孔３１内に押動さ
れて、取付金具２９の係合孔３４から離脱する。
このため、加熱装置１６は支持脚２８との固定が
解かれて、それぞれ回転ドラム９から遠ざかる方
向に倒れ、第２図に２点鎖線で示す位置（即ち、
垂直状態から水平状態に変換される）に倒すと、
取付金具２９に設けた第２の係合孔３４ａ（係合
孔とは約90゜の角度を保つて切欠いてある。）
に、支持軸３２が引張ばね３３の力により引戻さ
れて係合することとなるため、加熱装置１６は支
持脚２８に水平状態となつてそれ以上倒れること
なく支持される。この状態で、回転ドラム９を摩
擦車４上からウインチは人力等にて地上あるいは
台上に降ろし、蓋体１２の一方を、係止具１５を
解いて回転ドラム９から取り外す。そして、蓋体
１２を外した回転ドラム９の一方の開口から粉体
を回転ドラム９内に必要量投入して、再び蓋体１
２を係止具１５にて回転ドラム９に取付けて、回
転ドラム９の開口を閉鎖する。このあと、回転ド
ラム９を摩擦車４上に乗載して、加熱装置１６を
第２図の実線位置まで引さ起すと、支持軸３２が
係合孔３４に係合して加熱装置１６を直立状態に
維持する。このあと、粉体の乾燥温度を第５図に
示す温度設定目盛３５により設定してから電源ス
イツチ３６を投入して電動機６を起動させて回転
ドラム９を摩擦車４にて回転させると共に、整流
器３７−高周波インバータ３８を経て加熱装置１
６内の誘導加熱コイル１８に高周波電流を通電さ
せ、誘導加熱コイル１８により発生した高周波磁
束により回転ドラム９の金属の中にうず電流を生
じさせて、金属の抵抗によつて発生するジユール
熱により回転ドラム９自体を加熱する。この結
果、回転ドラム９は摩擦車４を介して駆動回転さ
れているので、局部的に加熱されることなく均一
に加熱される。従つて、回転ドラム９内の被乾燥
処理物は、回転ドラム９の均一な加熱と、掻上板
１０による撹拌作用とによつて、迅速にかつむら
なく良好に乾燥させる。尚、湿気は蓋体１２に設
けた脱湿孔１４から外部に排出される。そして、
回転ドラム９の温度が設定温度に達すると、トツ
ププレート１７に取付けた温度センサー３９によ
り検出されて、この温度を検出した信号は比較要
素４０を経て制御部４１に送られ、この制御部４
１を作動させて高周波インバータ３８に停止信号
を送り、高周波インバータ３８を停止させて回転
ドラム９の加熱を一時中止する。又、回転ドラム
９の温度が設定値以下となつたときは、温度セン
サー３９の働きにより制御部４１からの信号を受
けて再び高周波インバータ３８を作動させて誘導
加熱コイル１８により高周波磁束を発生させて回
転ドラム９を加熱させることにより、回転ドラム
９を常に粉体の乾燥に適した温度に加熱させて乾
燥作業を良好に続行させる。 Next, the operation will be described. First, the heating devices 16 are each pulled down in a direction away from the rotating drum 9 about the pivot shaft 30.
Then, the support shaft 32 attached to the support leg 28
is once pushed into the fitting hole 31 by the corner of the engagement hole 34 of the mounting bracket 29 against the force of the tension spring 33, and then separated from the engagement hole 34 of the mounting bracket 29.
As a result, the heating device 16 is unfixed from the supporting legs 28 and falls in the direction away from the rotating drum 9, and is placed in the position shown by the two-dot chain line in FIG. 2 (i.e.,
(converts from vertical to horizontal state),
A second engagement hole 34a provided in the mounting bracket 29 (it is cut out at an angle of about 90 degrees with the engagement hole).
Then, the support shaft 32 is pulled back and engaged by the force of the tension spring 33, so that the heating device 16 is supported by the support leg 28 in a horizontal state without falling any further. In this state, the rotating drum 9 is lowered from the friction wheel 4 onto the ground or on a platform using a winch or the like, and one of the lids 12 is removed from the rotating drum 9 by releasing the locking tool 15. Then, the required amount of powder is introduced into the rotating drum 9 from one opening of the rotating drum 9 with the lid 12 removed, and the lid 12 is removed again.
2 is attached to the rotating drum 9 with the locking tool 15, and the opening of the rotating drum 9 is closed. After that, when the rotating drum 9 is mounted on the friction wheel 4 and the heating device 16 is pulled up to the solid line position in FIG. 2, the support shaft 32 engages with the engagement hole 34 and the heating device 16 Stay upright. After that, the drying temperature of the powder is set using the temperature setting scale 35 shown in FIG. 37 - Heating device 1 via high frequency inverter 38
A high-frequency current is applied to the induction heating coil 18 in the rotating drum 9, and the high-frequency magnetic flux generated by the induction heating coil 18 generates an eddy current in the metal of the rotating drum 9. Due to the Joule heat generated by the resistance of the metal, The rotating drum 9 itself is heated. As a result, since the rotating drum 9 is driven and rotated via the friction wheel 4, it is heated uniformly without being locally heated. Therefore, the material to be dried in the rotating drum 9 is quickly and evenly dried by the uniform heating of the rotating drum 9 and the stirring action of the scraping plate 10. Note that the moisture is discharged to the outside through a dehumidification hole 14 provided in the lid 12. and,
When the temperature of the rotating drum 9 reaches the set temperature, it is detected by the temperature sensor 39 attached to the top plate 17, and a signal detecting this temperature is sent to the control section 41 via the comparison element 40.
1 is activated to send a stop signal to the high frequency inverter 38, the high frequency inverter 38 is stopped, and heating of the rotating drum 9 is temporarily stopped. When the temperature of the rotating drum 9 falls below the set value, the temperature sensor 39 receives a signal from the control unit 41 and operates the high frequency inverter 38 again to cause the induction heating coil 18 to generate high frequency magnetic flux. By heating the rotating drum 9, the rotating drum 9 is always heated to a temperature suitable for drying the powder, and the drying work can be continued smoothly.
次に、回転ドラム９の回転中、回転ドラム９が
真円状に形成されていないとき、回転ドラム９は
偏心して回転するため、トツププレート１７に回
転ドラム９が接衝する場合が生じるが、この場合
は、回転ローラー２７が第４図に２点鎖線で示す
如く、函体２１の長孔２６に沿つて後退し得るよ
うになつているので、トツププレート１７も、回
転ローラー２７の後退に伴つて移動枠体２０がコ
イルばね２３に抗して同時に後退する構造となつ
ているため、偏心回転する回転ドラム９がトツプ
プレート１７と接衝してこれを損傷させることは
全くなく、常に、トツププレート１７と回転ドラ
ム９の胴部との間は、最適な間隙ａで維持されて
いるので、回転ドラム９はその回転が例え不円滑
となつても加熱むらを生じせしめることは全くな
い。 Next, while the rotating drum 9 is rotating, if the rotating drum 9 is not formed in a perfect circle, the rotating drum 9 rotates eccentrically, so the rotating drum 9 may come into contact with the top plate 17. In this case, since the rotating roller 27 can retreat along the elongated hole 26 of the box 21, as shown by the two-dot chain line in FIG. Since the movable frame body 20 is constructed to move backward simultaneously against the coil spring 23, the eccentrically rotating rotating drum 9 never comes into contact with the top plate 17 and damages it. Since the optimum gap a is maintained between the top plate 17 and the body of the rotating drum 9, even if the rotation of the rotating drum 9 becomes uneven, uneven heating will not occur at all.
乾燥が終了すれば、電源スイツチ３６を一度切
つて回転ドラム９を自然冷却等させた後、蓋体１
２の一方を外して粉体を取り出す。加熱装置１６
を点検したり、あるいは、温度センサー３９や誘
導加熱コイル１８が故障して交換したり、補修す
るようなときは、上記加熱装置１６を回転ドラム
９から遠ざかる方向に倒して支持台２８に水平支
持させる。この結果、加熱装置１６は第２図に２
点鎖線で示すように、誘導加熱コイル１８を取付
けたトツププレート１７や回転ローラー２７を上
向きに位置させることができるので、加熱装置１
６の点検や補修作業を容易に行うことができる。 Once drying is completed, turn off the power switch 36 to allow the rotating drum 9 to cool naturally, and then close the lid 1.
Remove one side of 2 and take out the powder. Heating device 16
When inspecting the temperature sensor 39 or the induction heating coil 18 due to failure, or when replacing or repairing the malfunction, the heating device 16 is tilted away from the rotating drum 9 and horizontally supported on the support stand 28. let As a result, the heating device 16 is shown in FIG.
As shown by the dotted chain line, the top plate 17 to which the induction heating coil 18 is attached and the rotating roller 27 can be positioned upward, so that the heating device 1
6. Inspection and repair work can be easily performed.
又、回転ドラム９を洗浄する場合は、加熱装置
１６を横倒し状態にして、摩擦車４上から回転ド
ラム９を降ろし、蓋体１２を外すことにより、回
転ドラム９を蓋体１２とは個別に洗浄することが
できる。この際、回転ドラム９内は掻上板１０し
か存在していないので、迅速良好に洗浄すること
ができる。 When cleaning the rotating drum 9, the heating device 16 is laid down on its side, the rotating drum 9 is lowered from the friction wheel 4, and the lid 12 is removed. Can be washed. At this time, since only the scraping plate 10 is present inside the rotating drum 9, it can be quickly and efficiently cleaned.
尚、加熱装置１６は回転ドラム９の胴部両側に
設置した例について説明したが、回転ドラム９の
大きさに応じて基台１の片側に設置しても本考案
は成立するものである。 Although the heating device 16 has been described as being installed on both sides of the body of the rotating drum 9, the present invention can also be applied if the heating device 16 is installed on one side of the base 1 depending on the size of the rotating drum 9.
本考案の加熱装置は、回転ドラムの外周にお
いて基台上に上記回転ドラムと対応して起倒可
能に設けてあるため、誘導加熱コイルの交換な
どの加熱装置の補修作業に際し、加熱ドラムか
ら遠ざる方向に横倒して水平状態に保持でき、
しかも、誘導加熱コイルを取付けたトツププレ
ートが上向きとなるため、加熱装置の点検，補
修，部品の交換作業が、回転ドラムにじやまさ
れることなく迅速容易に行うことができる。
又、回転ドラムの水洗いや交換作業にあたつて
も、加熱装置を横倒しの状態に保持できるた
め、加熱装置を損傷することなく、作業を容易
に行い得る利点もある。 The heating device of the present invention is installed on the base on the outer periphery of the rotating drum so that it can be raised and lowered in correspondence with the rotating drum, so that it can be placed far away from the heating drum during repair work of the heating device such as replacing the induction heating coil. It can be held horizontally by laying it down in the direction of the colander.
Moreover, since the top plate to which the induction heating coil is attached faces upward, inspection, repair, and parts replacement work of the heating device can be performed quickly and easily without being hindered by the rotating drum.
Further, even when the rotating drum is washed with water or replaced, the heating device can be kept in a horizontal position, so there is an advantage that the work can be easily carried out without damaging the heating device.
更に、回転ドラムは、その製作過程で許容さ
れる範囲内で真円状に形成されていないと、摩
擦車の回転により偏心回転して加熱装置と接衝
するおそれがあるが、本考案は、偏心回転する
回転ドラムにあわせて、回転ドラムと常時接触
している回転ローラーが、加熱装置と共動して
後退可能に設けられて、誘導加熱コイルを内蔵
した移動枠体を上記回転ローラーとともに自動
的に後退させて、回転ドラムとの衝突を阻止
し、しかも、常に、回転ドラムとは予じめ設定
された間隔を維持し得るようになつているた
め、加熱装置の損傷は全くなく、その上、回転
ドラムと加熱装置との間隔が許容最少限度で一
定しているので、回転ドラムに加熱むらが生じ
ることなく、回転ドラムの加熱効率を向上させ
ることができる。 Furthermore, if the rotating drum is not formed into a perfect circle within the allowable range during the manufacturing process, there is a risk that it will rotate eccentrically due to the rotation of the friction wheel and come into contact with the heating device. In conjunction with the eccentrically rotating rotary drum, a rotary roller that is in constant contact with the rotary drum is provided so as to be retractable in cooperation with a heating device, and the movable frame body containing the induction heating coil is automatically moved along with the rotary roller. The heating device is completely retracted to prevent collision with the rotating drum and maintains a preset distance from the rotating drum at all times, so there is no damage to the heating device and its Moreover, since the distance between the rotating drum and the heating device is constant within the minimum allowable limit, heating efficiency of the rotating drum can be improved without uneven heating of the rotating drum.
第１図は本考案の加熱装置を備えた回転型乾燥
機の正面図、第２図は第１図のＡ−Ａ線における
断面図、第３図は加熱装置の要部を示す縦断面
図、第４図は第３図のＢ−Ｂ線における断面図、
第５図は乾燥機の動作を説明するためのブロツク
図である。
１……基台、４……摩擦車、９……回転ドラ
ム、１６……加熱装置、１８……誘導加熱コイ
ル、２０……移動枠体、２１……函体、２７……
回転ローラー。
Fig. 1 is a front view of a rotary dryer equipped with the heating device of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a longitudinal sectional view showing the main parts of the heating device. , FIG. 4 is a cross-sectional view taken along line B-B in FIG. 3,
FIG. 5 is a block diagram for explaining the operation of the dryer. DESCRIPTION OF SYMBOLS 1... Base, 4... Friction wheel, 9... Rotating drum, 16... Heating device, 18... Induction heating coil, 20... Moving frame, 21... Box, 27...
rotating roller.
Claims (1)
を回転自在に取付け、この摩擦車４上には粉体な
どの被乾燥処理物を収容した回転ドラム９を回転
自在に乗載し、この回転ドラム９を摩擦車４によ
り回転させるとともに、電磁誘導加熱方式により
回転ドラム９を加熱して回転ドラム内の被乾燥処
理物を乾燥するようにしたものにおいて、上記回
転ドラム９の外周側に位置する基台１上には、誘
導加熱コイル１８を取付けた弧状のトツププレー
ト１７と、このトツププレート１７を回転ドラム
９から遠ざかる方向に位置させて取付けた移動枠
体２０と、トツププレート１７を回転ドラム９側
に臨ませて上記移動枠体２０を、コイルばね２３
により回転ドラム９の外周側に移動可能に付勢し
て収容した函体２１と、この函体２１の外側にお
いて上記移動枠体２０と共動可能に取付けられて
回転ドラム９の胴部と摺接して回転ドラム９とト
ツププレート１７との間隔を一定に保持する回転
ローラー２７とによつて構成した加熱装置１６
を、上記基台１上に設置した支持脚２８に回転ド
ラム９の外周と対応させて起倒可能に取付けて成
る回転ドラムの加熱装置。 Friction wheel 4 rotated by electric motor 6 on base 1
A rotary drum 9 containing a material to be dried such as powder is rotatably mounted on the friction wheel 4, and the rotary drum 9 is rotated by the friction wheel 4, and electromagnetic induction In a device in which the rotating drum 9 is heated by a heating method to dry the material to be dried in the rotating drum, an induction heating coil 18 is installed on the base 1 located on the outer peripheral side of the rotating drum 9. A top plate 17 having an arcuate shape, a movable frame 20 mounted with the top plate 17 positioned in a direction away from the rotating drum 9, and a movable frame 20 with the top plate 17 facing the rotating drum 9. Coil spring 23
A box 21 is movably biased toward the outer circumferential side of the rotating drum 9 and housed therein, and a box 21 is attached to the outside of the box 21 so as to be movable with the movable frame 20 and slides with the body of the rotating drum 9. A heating device 16 constituted by a rotating roller 27 that is in contact with the rotating drum 9 to maintain a constant distance between the rotating drum 9 and the top plate 17.
is attached to supporting legs 28 installed on the base 1 so as to be able to rise and fall in correspondence with the outer periphery of the rotating drum 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4823983U JPS59152388U (en) | 1983-03-31 | 1983-03-31 | Rotating drum heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4823983U JPS59152388U (en) | 1983-03-31 | 1983-03-31 | Rotating drum heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59152388U JPS59152388U (en) | 1984-10-12 |
| JPS626479Y2 true JPS626479Y2 (en) | 1987-02-14 |
Family
ID=30178778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4823983U Granted JPS59152388U (en) | 1983-03-31 | 1983-03-31 | Rotating drum heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59152388U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3912874B2 (en) * | 1997-10-29 | 2007-05-09 | キヤノン株式会社 | Image forming apparatus |
| JP7023522B2 (en) * | 2019-02-12 | 2022-02-22 | カツラギ工業株式会社 | Drum dryer |
-
1983
- 1983-03-31 JP JP4823983U patent/JPS59152388U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59152388U (en) | 1984-10-12 |
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