JPS618586A - Fluidized bed type drier - Google Patents

Fluidized bed type drier

Info

Publication number
JPS618586A
JPS618586A JP12882284A JP12882284A JPS618586A JP S618586 A JPS618586 A JP S618586A JP 12882284 A JP12882284 A JP 12882284A JP 12882284 A JP12882284 A JP 12882284A JP S618586 A JPS618586 A JP S618586A
Authority
JP
Japan
Prior art keywords
heating tube
fluidized bed
heating
group
dried
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.)
Granted
Application number
JP12882284A
Other languages
Japanese (ja)
Other versions
JPH0437355B2 (en
Inventor
稔 守田
直樹 近藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsukishima Kikai Co Ltd
Original Assignee
Tsukishima Kikai Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tsukishima Kikai Co Ltd filed Critical Tsukishima Kikai Co Ltd
Priority to JP12882284A priority Critical patent/JPS618586A/en
Publication of JPS618586A publication Critical patent/JPS618586A/en
Publication of JPH0437355B2 publication Critical patent/JPH0437355B2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、回転する加熱管群を有する流動層式乾燥機に
関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a fluidized bed dryer having a group of rotating heating tubes.

[従来の技術] 流動層技術は、粉粒体の乾燥、熱交換、焼成、さらに進
んで廃棄物の焼却、熱分解等に汎〈利用されているが、
その理由は、伝熱時゛性に優れ、粉粒体の取扱い、処理
が容易であることなどによる。
[Prior art] Fluidized bed technology is widely used for drying, heat exchange, and calcination of powder and granules, and furthermore, for waste incineration, thermal decomposition, etc.
The reason for this is that it has excellent heat transfer properties and is easy to handle and process as a powder.

乾燥にも流動層技術が用いられているが、通常は被乾燥
粉粒体を加熱空気によって流動化させるとともに、その
熱によって乾燥操作を行うものである。
Fluidized bed technology is also used for drying, but usually the granular material to be dried is fluidized by heated air and the drying operation is performed using the heat.

一方、特殊な流動層乾燥機として、特公昭44−265
16号公報記載のように、流動層部内に加熱管を羅列し
た加熱壁を設置したものが知られている。同公報によれ
ば、主として乾燥効率が向上するとされている。
On the other hand, as a special fluidized bed dryer,
As described in Japanese Patent No. 16, it is known that a heating wall in which heating tubes are arranged is installed in a fluidized bed section. According to the publication, it is said that drying efficiency is mainly improved.

C発明が解決しようとする問題点j ′しかし、対象湿
潤粉粒体が加熱管に付着′し易い場合には、操作上大き
な問題となる。すなわち、第4図のように、加熱管P群
を水平に配置すると、加熱空気Aは偏流して管Pの上部
に廻わらず、そこが湿潤粉体の吹き溜りとなり、加熱管
Pのと部に固着体Sを生じる。こうなると、間接加熱の
ための有効面積は減少し、乾燥機の能率が次第に低下す
る。また、加熱管Pに固着した粉粒体は高温に長時間さ
らされるため変質し、もし剥離したときには、製品に不
純物が混入する結果となる。したがって、本発明の目的
は、このような乾燥効率の低下を防止するばかりでなく
、飛躍的な乾燥効率の向]−を図り、しかも被乾燥物の
変質を防止することにある。
Problems to be Solved by the Invention j' However, if the target wet powder tends to adhere to the heating tube, this poses a major operational problem. In other words, when heating tubes P are arranged horizontally as shown in Fig. 4, heated air A is biased and does not reach the upper part of the tubes P, which becomes a cloud of wet powder, A solid body S is formed in the part. This reduces the effective area for indirect heating and gradually reduces the efficiency of the dryer. In addition, the powder and granules stuck to the heating tube P are exposed to high temperatures for a long period of time, so they change in quality, and if they peel off, this results in the contamination of the product with impurities. Therefore, an object of the present invention is not only to prevent such a decrease in drying efficiency, but also to dramatically improve drying efficiency, and also to prevent deterioration of the quality of the material to be dried.

r問題点を解決するための手段] 上記問題点を解決するために、本発明は、流動用気体に
よって波動化された流動層部位置に、熱媒体が通る単数
または複数の複数本の加熱管群を実質的に水平かつ平行
配置し、この加熱管群をその群単位において共通する回
転中心縁周りに回転可能とした構成を採っている。
Means for Solving Problems] In order to solve the above problems, the present invention provides a heating tube or a plurality of heating tubes through which a heating medium passes through a fluidized bed section that is made into waves by a fluidizing gas. The heating tube groups are arranged substantially horizontally and parallel to each other, and the heating tube group is configured to be rotatable around a common rotation center edge in each group.

本発明が、前記公報記載の技術と、根本的に相異するの
は、加熱管群を共通する回転中心縁周りに回転するよう
にした点である。前記従来技術では、加熱管は静置して
いる。
The present invention is fundamentally different from the technique described in the above-mentioned publication in that the heating tube group is rotated around a common rotation center edge. In the prior art, the heating tube is left stationary.

[作用〕 本発明によれば、第、1図および第2図のように、加熱
管1群が回転軸2,3を通る回転中心縁周りに回転する
。したがって、1つの加熱管lを採って考えてみると、
それが最上位置にあるときの最上部点は、回転につれて
位置を順次変え、当該加熱管lが最下位にあるとき、当
該点も最下に向く。したがって、流動用気体(通常は空
気)に対して、加熱管の全周面がまんべんなく当り、従
来のような流動用気体による死点を生じない。その結果
、被乾燥物の固着が無く、従来装置では処理できなかっ
た物質の乾燥も行うことができる。
[Operation] According to the present invention, as shown in FIGS. 1 and 2, a group of heating tubes rotates around the rotation center edge passing through the rotation axes 2 and 3. Therefore, if we consider one heating tube l,
The top point when it is in the top position changes position sequentially as it rotates, and when the heating tube I is in the bottom position, the point also points towards the bottom. Therefore, the entire circumferential surface of the heating tube evenly contacts the fluidizing gas (usually air), and no dead center occurs due to the fluidizing gas as in the prior art. As a result, there is no sticking of the material to be dried, and it is possible to dry materials that could not be treated with conventional devices.

一方、加熱管群の回転によって、被乾燥物には、流動用
気体による流動化が与えられる以外にも、撹拌力が与え
られる。その結果、流動一層全体が均一に流動および撹
拌されるため、伝熱係数の高い乾燥機となる。そして、
粉粒体が撹拌されることによって、逆に流動用空気量(
風速)を低下させ、その供給用送風機および排ガス用排
風機の動力を小さくでき、しかも排気熱損失を最少限に
抑えることができる。
On the other hand, by the rotation of the heating tube group, the material to be dried is not only fluidized by the fluidizing gas but also given a stirring force. As a result, the entire fluid layer is uniformly fluidized and stirred, resulting in a dryer with a high heat transfer coefficient. and,
By stirring the powder, the amount of air for fluidization (
It is possible to reduce the power of the supply blower and the exhaust gas exhaust fan, and to minimize the exhaust heat loss.

[発明の具体例] 次に本発明を図面に示す具体例によって説明する。[Specific examples of the invention] Next, the present invention will be explained using specific examples shown in the drawings.

(構成) 第1図および第2図は単一の加熱管群内臓型の例で、ケ
ーシング4内に加熱管1群が内臓されている。各加熱管
lは端板5,6によって支承されている。端板5,6は
中央梁7によって保持されるとともに、左右鏡板8,9
に固定されている。
(Structure) FIGS. 1 and 2 are examples of a single heating tube group built-in type, in which one group of heating tubes is built into the casing 4. Each heating tube l is supported by an end plate 5,6. The end plates 5 and 6 are held by the center beam 7, and the left and right mirror plates 8 and 9
is fixed.

鏡板8,9はそれぞれ中空回転軸2,3と一体となって
いる。10は補強板である。
The end plates 8 and 9 are integrated with the hollow rotating shafts 2 and 3, respectively. 10 is a reinforcing plate.

加熱管工の両端は端板5,6と鏡板8,9とでそれぞれ
構成される熱媒体たとえば蒸気の流入室11、および波
山室12に開口している。
Both ends of the heating pipework open into an inflow chamber 11 for a heat medium, such as steam, and a wave crest chamber 12, which are constituted by end plates 5, 6 and end plates 8, 9, respectively.

回転軸2は、ケーシング4に取付けられたブラケット1
3に設けられた軸受14によって支承されており、また
その端部にはロータリージヨイント15が設けられ、そ
こに熱媒体Stの流入口16が形成されている。他方、
回転軸3は、ブラケット17に設けられた軸受18によ
って支承され、またその端部にはロータリージヨイント
19が設けられ、そこにドレンDrの流出口2oが形成
されている。さらに、回転軸3には、図示しない回転駆
動モータの出力軸と連続される従動ギア21が固定され
ている。22は、回転軸2,3とケーシング4との軸封
である。
The rotating shaft 2 has a bracket 1 attached to the casing 4.
A rotary joint 15 is provided at the end of the rotary joint 15, and an inlet 16 for the heat medium St is formed therein. On the other hand,
The rotating shaft 3 is supported by a bearing 18 provided on a bracket 17, and a rotary joint 19 is provided at the end thereof, in which an outlet 2o of the drain Dr is formed. Further, a driven gear 21 is fixed to the rotating shaft 3 and is connected to an output shaft of a rotary drive motor (not shown). 22 is a shaft seal between the rotating shafts 2 and 3 and the casing 4.

ケーシング4の底板より上方には分散板23が設けられ
、これらで囲まれる空間は仕切板24によってたとえば
16室(長手°方向4室、周方向4室、計16室)に分
割され、送気(ブレナム)室をそれぞれ構成している。
A dispersion plate 23 is provided above the bottom plate of the casing 4, and the space surrounded by these is divided by a partition plate 24 into, for example, 16 chambers (4 chambers in the longitudinal direction, 4 chambers in the circumferential direction, 16 chambers in total), and air supply (Blenheim) They each constitute a room.

各送気室には流動用気体、たとえば加熱空気Aが供給さ
れる。
A flowing gas, for example heated air A, is supplied to each air supply chamber.

ケーシング4の上部には被乾燥物Mの供給口25、およ
び排気口26が形成されている。また27は、乾燥物M
′の取付口である。28はドレン用管である。なお、2
9は補助撹拌羽根で、取付板30を介して鏡板5.6お
よび補強板lOに固定されている。補助撹拌羽根26は
、撹拌効果を一層高める。なお、この撹拌羽根は、図示
のように完全に放射状に取付けなくともよく、斜めに(
羽根に沿う方向が中心に向わない)に取付けてもよいし
、また羽根自体が掻き上げ効果増大のためにシャベル状
に屈曲していてもよい、さらに、長手方向(軸方向)に
複数設けてもよい。
A supply port 25 for the material to be dried M and an exhaust port 26 are formed in the upper part of the casing 4 . In addition, 27 is dried product M
' is the installation port. 28 is a drain pipe. In addition, 2
Reference numeral 9 denotes an auxiliary stirring blade, which is fixed to the end plate 5.6 and the reinforcing plate IO via the mounting plate 30. The auxiliary stirring blade 26 further enhances the stirring effect. Note that the stirring blades do not have to be installed completely radially as shown in the figure; they can be installed diagonally (
The direction along the blade may not face the center), or the blade itself may be bent like a shovel to increase the raking effect. It's okay.

(作用) このように構成された装置においては、ケーシング4内
に投入された被乾燥物たる粉粒体は、分散板23の透孔
を介して吹き上げられる加熱空気によって流動化される
とともに、その熱によって乾燥が図られる。他方で、加
熱蒸気Stが、流入口16から各加熱管1を通り、粉粒
体に熱を与え、自らはドレンとなって流出室12の下部
に溜り、ドレン用管28を通って排出される。したがっ
て、粉粒体は加熱管lによって間接加熱され、乾燥が図
られる。同時に、従動ギア21を介して回転軸3に回転
力が与えられるから、各加熱管1群は、回転中心線(回
転軸2,3を通る線)の周りに回転せられ、流動化粉粒
体を撹拌する。
(Function) In the device configured as described above, the powder or granular material to be dried, which is put into the casing 4, is fluidized by the heated air blown up through the holes in the dispersion plate 23, and Drying is achieved by heat. On the other hand, the heated steam St passes through each heating tube 1 from the inlet 16, gives heat to the powder and granules, becomes drain and accumulates in the lower part of the outflow chamber 12, and is discharged through the drain tube 28. Ru. Therefore, the granular material is indirectly heated by the heating tube 1 and dried. At the same time, since rotational force is applied to the rotating shaft 3 via the driven gear 21, each group of heating tubes is rotated around the rotation center line (a line passing through the rotating shafts 2 and 3), and the fluidized powder is Stir the body.

乾燥に伴う排ガスは排気口26から、製品は取出口27
から排出される。
Exhaust gas associated with drying is discharged from the exhaust port 26, and product is discharged from the outlet 27.
is discharged from.

(他の具体例) 第3図は、加熱管群を複数設けた例である。構造は図面
より明らかなので、詳説しない。
(Other specific examples) FIG. 3 is an example in which a plurality of heating tube groups are provided. The structure is clear from the drawings, so it will not be described in detail.

[実施例] 第1図および第2図に示す装置を製作し、乾燥能力を調
べた。
[Example] The apparatus shown in FIGS. 1 and 2 was manufactured and its drying ability was investigated.

巾1m・長さ4m、高さ2.4mのケーシング内に、直
径950■の円内に納まるように、外形50.1mmの
加熱管を80本水平配置し、伝熱面積50m″とした。
In a casing with a width of 1 m, a length of 4 m, and a height of 2.4 m, 80 heating tubes with an outer diameter of 50.1 mm were arranged horizontally so as to fit within a circle with a diameter of 950 square meters, giving a heat transfer area of 50 m''.

加熱管群は、5.5KWの減速機付電動機によって、I
ORPMの速度で回転させた。下部より、200m″/
+*inの割合で150’Cの加熱空気を吹き上げ、ま
た加熱管群には圧力5kg/m1の蒸気を供給した。
The heating tube group is powered by a 5.5KW electric motor with a reduction gear.
It was rotated at the speed of ORPM. From the bottom, 200m''/
Heated air at 150'C was blown up at a rate of +*in, and steam at a pressure of 5 kg/m1 was supplied to the heating tube group.

そして、コンスターチ生産T場の副産物ジャムを、蒸気
乾燥機内へ5000kg/hrの割合で供給し、入口水
分50%のものを5%まで乾燥させた。この際の空気出
口温度は70℃であった。
Then, the by-product jam from the cornstarch production plant T was fed into the steam dryer at a rate of 5000 kg/hr, and the inlet water content of 50% was dried to 5%. The air outlet temperature at this time was 70°C.

この結果から、従来利用していたスチームチューブドラ
イヤー(間接加熱型回転乾燥機)において、伝熱面積3
50rn’、直径1.8m、長さ15mのものと比較し
て、設備費の点で40%安価となり、乾燥能力は約25
%増加した。
From this result, it was found that in the conventionally used steam tube dryer (indirectly heated rotary dryer), the heat transfer area
50rn', diameter 1.8m, and length 15m, the equipment cost is 40% cheaper and the drying capacity is approximately 25m.
% increase.

[発明の効果] 以北の通り、本発明は、加熱管群を回転するものである
ため、被乾燥物の加熱管への付着が確実に防止され、全
周面を有効に乾燥に用いることができ、しかも撹拌力も
加わるので、常に新しいかつ均一な粉粒体との接触が達
成され、乾燥能力が向上し、さらに動力費および排気熱
損失も防止できるなどの利点をもたらす。
[Effects of the Invention] As mentioned above, since the present invention rotates the group of heating tubes, it is possible to reliably prevent the matter to be dried from adhering to the heating tubes, and to effectively use the entire circumferential surface for drying. Moreover, since stirring power is also applied, fresh and uniform contact with the powder or granules is always achieved, the drying ability is improved, and furthermore, power costs and exhaust heat loss can be prevented.

【図面の簡単な説明】 第1図は本発明装置の一例の断面図、第2図はIT −
II線矢視図、第3図は他の例の断面図、第4図は従来
の静置型加熱管における被乾燥物付着態様の説明図であ
る。 l・・加熱管 2.3φ・回転軸 M・・被乾燥物 M”・・製品 St・・加熱蒸気 Dr*・ドレン A・・加熱空気 −401゛
[Brief Description of the Drawings] Figure 1 is a sectional view of an example of the device of the present invention, and Figure 2 is an IT-
FIG. 3 is a cross-sectional view of another example, and FIG. 4 is an explanatory view of the manner in which objects to be dried are attached to a conventional stationary heating tube. L...Heating tube 2.3φ・Rotating shaft M・・Object to be dried M”・・Product St・・Heating steam Dr*・Drain A・・Heating air −401゛

Claims (1)

【特許請求の範囲】[Claims] (1)流動用気体によって流動化された流動層部位置に
熱媒体が通る単数または複数の複数本からなる加熱管群
を実質的に水平かつ平行配置し、この加熱管群をその群
単位において共通する回転中心線周りに回転可能とした
ことを特徴とする流動層式乾燥機。
(1) A heating tube group consisting of one or more heating tubes through which a heat medium passes is arranged substantially horizontally and in parallel at the fluidized bed portion fluidized by the fluidizing gas, and the heating tube group is arranged in each group. A fluidized bed dryer characterized by being able to rotate around a common rotation center line.
JP12882284A 1984-06-22 1984-06-22 Fluidized bed type drier Granted JPS618586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12882284A JPS618586A (en) 1984-06-22 1984-06-22 Fluidized bed type drier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12882284A JPS618586A (en) 1984-06-22 1984-06-22 Fluidized bed type drier

Publications (2)

Publication Number Publication Date
JPS618586A true JPS618586A (en) 1986-01-16
JPH0437355B2 JPH0437355B2 (en) 1992-06-19

Family

ID=14994269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12882284A Granted JPS618586A (en) 1984-06-22 1984-06-22 Fluidized bed type drier

Country Status (1)

Country Link
JP (1) JPS618586A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61231381A (en) * 1985-04-04 1986-10-15 三井造船株式会社 Fluid drier
JP2007327324A (en) * 2006-05-12 2007-12-20 Maeda Kosen Co Ltd Bag material easily connected to one another
EP2495495A3 (en) * 2011-03-02 2015-09-23 Babcock Borsig Steinmüller GmbH Fluidised bed drier system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128822A (en) * 1983-01-14 1984-07-25 Nec Corp Semiconductor circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128822A (en) * 1983-01-14 1984-07-25 Nec Corp Semiconductor circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61231381A (en) * 1985-04-04 1986-10-15 三井造船株式会社 Fluid drier
JP2007327324A (en) * 2006-05-12 2007-12-20 Maeda Kosen Co Ltd Bag material easily connected to one another
EP2495495A3 (en) * 2011-03-02 2015-09-23 Babcock Borsig Steinmüller GmbH Fluidised bed drier system

Also Published As

Publication number Publication date
JPH0437355B2 (en) 1992-06-19

Similar Documents

Publication Publication Date Title
TWI596311B (en) Indirect heating rotary dryer
US4405013A (en) Rotary type heat pipe heat exchanger
KR100534084B1 (en) Combined drying appratus of sludge
JP2001324269A (en) Heat transfer type vertical drier
CN212987905U (en) Disc type continuous drying machine for material dispersion
JPS618586A (en) Fluidized bed type drier
JP3287401B2 (en) Indirect heating type stirring dryer
CN207159076U (en) Damping stirring-type chemical engineering sludge drying device
CN207537320U (en) A kind of efficient municipal sludge drying breaking means
CN215447226U (en) Bentonite drying-machine inner structure
CN212253487U (en) External heating type drying equipment heated by heat conduction oil
CN205482191U (en) Continuity hot blast drier
CN104833186B (en) Electromagnetic induction screw conveying drying machine
CN207797653U (en) A kind of vertical inclination angle disk desiccation apparatus
CN219776294U (en) Roller scraper dryer
CN211739801U (en) Double heat exchange equipment for enhancing mass and heat transfer by high shearing force
CN2466586Y (en) Bulk material dryer
JPS6325518Y2 (en)
CN217732942U (en) Anti-blocking feeding device for horizontal disc dryer
CN218973081U (en) Roller scraper dryer
CN212081914U (en) Mixed-flow type hot air high-speed stirring sludge dryer
CN215113723U (en) Disc drier
CN218915583U (en) Mesotrione serialization drying device
CN212640266U (en) Closed paddle stirring sludge drying system
CN107244796A (en) Damping stirring-type chemical engineering sludge drying device