JPS62261884A - Method and device for drying granule - Google Patents
Method and device for drying granuleInfo
- Publication number
- JPS62261884A JPS62261884A JP10423186A JP10423186A JPS62261884A JP S62261884 A JPS62261884 A JP S62261884A JP 10423186 A JP10423186 A JP 10423186A JP 10423186 A JP10423186 A JP 10423186A JP S62261884 A JPS62261884 A JP S62261884A
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- hollow
- hot air
- pin
- powder
- 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.)
- Pending
Links
- 238000001035 drying Methods 0.000 title claims description 30
- 239000008187 granular material Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 7
- 239000000843 powder Substances 0.000 claims description 31
- 239000012530 fluid Substances 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000002801 charged material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 10
- 238000011049 filling Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000010802 sludge Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
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〉
本発明は粉体或いは粒体物の乾燥方法、更に詳しくは粉
体あるいは粒体物を攪拌し乍ら間接的及び直接的に加熱
することができる乾燥方法及びそれに用いる乾燥装置に
関するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a method for drying powder or granular material, more specifically, a method for indirectly and directly heating the powder or granular material while stirring the material. The present invention relates to a drying method and a drying device used therein.
〈従来の技術及びその問題点〉
間接加熱型の乾燥機にはドラム型、材料攪拌型、水蒸気
加熱管付回転型等があり、これらの乾燥機は、いずれも
乾燥用熱源として蒸気、温水、熱媒油等を用い、間接的
に伝わる熱により湿潤材料を乾燥するもので、溶剤回収
、食品類乾燥等に多く用いられている。又含水粉体の乾
燥に適合し易いとされている材料攪拌型乾燥機は、密閉
構造とし易く熱損失が少なく、又材料充填率が高い等の
利点がある。<Prior art and its problems> Indirect heating type dryers include drum type, material agitation type, rotary type with steam heating tube, etc. All of these dryers use steam, hot water, It dries wet materials by indirectly transmitting heat using heat transfer oil, etc., and is often used for solvent recovery, food drying, etc. In addition, a material agitation type dryer, which is said to be easily suitable for drying water-containing powder, has advantages such as easy to form a closed structure, low heat loss, and high material filling rate.
しかし乍らそのいずれを用いてもロータリーキルン型を
基本とすることから、乾燥物の流動促進の為に充填率に
限界を生じ十分な省エネルギー化及び生産性の向上を図
り得ない問題がある。又充填率が低いこと及び攪拌型で
は直接伝熱を促進し得ないことから省エネルギー化の未
達に加え装置が大型化し、その経済性を損なう等の問題
がある。However, no matter which type of kiln is used, since it is basically a rotary kiln type, there is a problem that there is a limit to the filling rate in order to promote the flow of the dried material, and it is not possible to achieve sufficient energy saving and productivity improvement. Furthermore, since the filling rate is low and the stirring type cannot directly promote heat transfer, there are problems such as not only insufficient energy saving but also an increase in the size of the device, which impairs its economic efficiency.
又実開昭５６−１３３４００号公報で開示される「汚泥
乾燥機」に於いては、水分含有率が非常に高い汚泥の解
砕、攪拌、乾燥を目的とするものでありケーシング内面
への付着や粘着の発生を防止する為にシャフト外周面に
所要数のピンを所定間隔をあけて螺旋状に設け、上記そ
れぞれのピンの先端を、上記ケーシング内面に接近させ
たことを特徴とするものであるが、含水粉体の乾燥にお
いては解砕する必要はないが、その反面ケーシング内に
付着し易く加熱効率の向上を必要とする為に省エネルギ
ー化を図ることが出来ず、しかも乾燥効率が大幅に低下
し、乾燥機の小型化ができない等の問題がある。Furthermore, the "sludge dryer" disclosed in Japanese Utility Model Application Publication No. 56-133400 is intended for crushing, stirring, and drying sludge with a very high water content, and does not adhere to the inner surface of the casing. In order to prevent the occurrence of adhesion or adhesion, a required number of pins are spirally provided on the outer peripheral surface of the shaft at predetermined intervals, and the tips of each of the pins are brought close to the inner surface of the casing. However, when drying water-containing powder, it is not necessary to crush it, but on the other hand, it tends to adhere to the inside of the casing and requires improved heating efficiency, making it impossible to save energy and furthermore, the drying efficiency is significantly reduced. There are problems such as the dryer cannot be downsized.
く問題点を解決する為の手段〉
本発明は粉体若しくは粉粒体の乾燥を効果的に行なうに
は、乾燥に供される装入物の充填率と流動をいかなる状
態で強化するか、又該流体と流動装入物への伝熱手段に
よって乾燥特性が大きく異なることを見出し、そこで従
来のロータリー型乾燥機及び汚泥乾燥機の如き連続処理
機能を活しつつ、その欠点である充填率を従来にない領
域まで向上せしめ、且つその流動を十分に行なわしめる
と共に、全般に渡る伝熱の改良を行ない得たことで従来
の装置の持つ特性を活し、しかも従来にない高効率を具
備した乾燥を可能とするものであり、本発明の要旨は筒
体の軸心方向に熱流体流路を有する回転軸を内挿し、上
記回転軸の外周面上に適宜間隔をもって植設された掻ピ
ンを介して装入物を移送し、且つ流動せしめつつ、上記
熱流体流路を介して、上記掻ピン内部に熱流体を送供し
て乾燥することを特徴とする粉粒体の乾燥方法及び円形
断面を有するケーシング内に該ケーシングと同軸状に中
空の回動軸を内挿し、該回動軸の外周面に適宜間隔をも
って基部が同回動軸の中空内に連通ずる中空の加熱用掻
ピンを植設せしめたことを特徴とする粉粒体の乾燥装置
である。Means for Solving the Problems> The present invention proposes that in order to effectively dry powder or granular material, under what conditions should the filling rate and flow of the charge to be dried be strengthened? We also discovered that the drying characteristics differ greatly depending on the fluid and the means of heat transfer to the fluidized charge, and therefore, while making use of the continuous processing functions of conventional rotary dryers and sludge dryers, we were able to improve the filling rate, which is the drawback of conventional rotary dryers and sludge dryers. By improving the heat transfer to an unprecedented level, and by ensuring sufficient flow and improving overall heat transfer, we are able to take advantage of the characteristics of conventional equipment and achieve unprecedented high efficiency. The gist of the present invention is to insert a rotary shaft having a thermal fluid flow path in the axial direction of the cylinder, and to install scratchers at appropriate intervals on the outer peripheral surface of the rotary shaft. A method for drying a powder or granular material, characterized in that the charging material is transferred and made to flow through a pin, and a hot fluid is supplied to the inside of the scraping pin through the hot fluid flow path for drying. A hollow rotating shaft is inserted coaxially with the casing into a casing having a circular cross section, and a hollow heating scraper is provided on the outer peripheral surface of the rotating shaft with a base communicating with the hollow interior of the rotating shaft at an appropriate interval. This is a drying device for powder and granular material characterized by having pins installed therein.
なお、上記掻ピン内への熱流体の循環手段及び粉粒体へ
の伝熱手段としては基部が回動軸中空内に連通し、排気
口を有する中空の排気用ピンと、基部が同様に上記回動
軸中空内に連通し密閉状に形成される中空の加熱用ピン
を適宜組合わせるか、あるいはそれぞれ交互に突設せし
め、且つ上記回動軸中空内に基部が熱風送入口とされ、
しかも上記それぞれの加熱用ピン内に挿通される熱風送
出用の支管を周設せしめた熱風送出用主管を装入すると
共に、上記回動軸と上記熱風送出用主管とが一体的に回
転する如くなした乾燥装置、あるいは上記中空の回動軸
に熱流体の噴出孔を設けた如き粉粒体の乾燥装置を用い
るものとする。In addition, the means for circulating thermal fluid into the scraper pin and the means for transmitting heat to the powder and granular material include a hollow exhaust pin whose base communicates with the hollow rotating shaft and has an exhaust port, and a hollow exhaust pin whose base is connected to the hollow rotating shaft and has an exhaust port. Hollow heating pins that communicate with and are formed in a sealed manner in the hollow rotating shaft are appropriately combined or alternately protruded from each other, and the base of the hollow rotating shaft serves as a hot air inlet;
Moreover, a main pipe for sending out hot air having a branch pipe for sending out hot air inserted into each of the heating pins is inserted, and the rotating shaft and the main pipe for sending out hot air are rotated integrally. A drying device for drying powder or a drying device for powder or granular material, such as a drying device made of the above-mentioned structure, or a device for drying powder or granular material, such as a drying device in which a hot fluid ejection hole is provided in the hollow rotating shaft, is used.
なお本発明に用いる回転軸は中空の二重管あるいは中実
管に適宜熱流体流路を穿設するか、又は小径パイプを組
合せ形成した空間からなる流路のいずれをも含むもので
あり、しかも上記流路を装入側から排気側にかけて適宜
独立して設は各独立制御域と成る様に設けることを含み
、更に掻ピンも円形断面を有するピン或いは矩形断面を
有するピン又は楕円形のいずれかあるいはこれ等の組合
せであって、第４図に示す如く回動に伴って掻ピンｂ内
を流通する流体を制御するフロートＣを内在したいずれ
かを有するものである。更にまた第５図に示す様に、回
動軸内に設けた助燃用気体本管ｄを介して掻ピンの熱流
体内部に独立の助燃用気体支管ｅを、内挿し該掻ピンの
先端の噴出孔ｆから例えば空気等を噴出すると湿気の系
外逸散の促進と若干の燃焼発熱作用により、乾燥の可及
的な向上を図り得る。Note that the rotating shaft used in the present invention includes either a hollow double pipe or a solid pipe with a suitable thermal fluid flow path, or a flow path made of a space formed by combining small diameter pipes. Moreover, the above-mentioned flow path is appropriately and independently provided from the charging side to the exhaust side so as to form each independent control area, and the scraping pin is also a pin with a circular cross section, a pin with a rectangular cross section, or an oval cross section. Either one or a combination thereof, as shown in FIG. 4, includes a float C that controls the fluid flowing through the scraping pin b as it rotates. Furthermore, as shown in FIG. 5, an independent combustion auxiliary gas branch pipe e is inserted into the hot fluid of the scraping pin via the combustion auxiliary gas main pipe d provided in the rotating shaft, and the tip of the scraping pin is inserted. For example, when air is ejected from the ejection hole f, drying can be improved as much as possible by promoting the escape of moisture from the system and by generating some heat from combustion.
又熱流体としては間接系においては液体及び気体あるい
は水蒸気等のいずれでも良く、直接吹込系は燃焼ガスあ
るいは不活性ガス又は空気等の気体流体を用いるもので
ある。In indirect systems, the thermal fluid may be either liquid, gas, or steam, while in direct injection systems, combustion gas, inert gas, or gaseous fluids such as air are used.
〈実施例及び作用〉
以下本発明に係る粉体乾燥方法および装置について、そ
の実施例を示す図面を参酌し乍ら更に詳述する。<Examples and Effects> The powder drying method and apparatus according to the present invention will be described in further detail below with reference to the drawings showing examples thereof.
第１図には本発明の一部切欠全体説明図、第２図には第
１図Ｉ−Ｉ！Ｉに於ける要部拡大断面図を示し、第３図
には第１図ＩＩ−Ｉ線に於ける要部拡大断面図を示す。FIG. 1 is a partly cutaway overall explanatory diagram of the present invention, and FIG. 2 is a diagram of FIG. FIG. 3 shows an enlarged cross-sectional view of the main part taken along line II--I in FIG. 1.
図中、（１）は両端部に粉体投入口（２）及び粉体乾燥
品出口（３）が形成される円形断面を有するケーシング
であり、同ケーシング（１）と同軸状に中空の回動軸（
４）を内挿するものであり、該ケーシング（１）両端部
より突出する上記中空回動軸（４）の両端部にそれぞれ
熱風入口となる回転継手（５）と熱風出口となる回転継
手（５′）を取付け、そして上記中空回動軸（４）の外
周面には第２図及び第３図に於いて示す様に、所要間隔
毎に基部が上記回動軸（４）の中空内（ａ）に連通し上
部には排気口（６）を有する中空の排気用ピン（７）と
、基部が同様に上記回動軸（４）の中空内（＆）に連通
し、上部が密閉状に形成される中空の加熱用ピン（８）
をそれぞれ円周上並びに上記回動軸（４）の長手方向上
に於いても交互に螺旋状に配列される様に突設するもの
である。In the figure, (1) is a casing with a circular cross section in which a powder inlet (2) and a powder dry product outlet (3) are formed at both ends. Moving axis (
4), and a rotary joint (5) serving as a hot air inlet and a rotary joint (5) serving as a hot air outlet are installed at both ends of the hollow rotating shaft (4) protruding from both ends of the casing (1), respectively. 5') is attached to the outer circumferential surface of the hollow rotating shaft (4), and as shown in FIGS. A hollow exhaust pin (7) that communicates with (a) and has an exhaust port (6) at the top, and a base that similarly communicates with the hollow interior (&) of the rotation shaft (4), and the upper part is sealed. Hollow heating pin (8) shaped like
are arranged protrudingly so as to be alternately arranged in a spiral shape both on the circumference and in the longitudinal direction of the rotation shaft (4).
そこで上記回動軸（４）の中空内ｈ）に基部が熱風送入
口（９）とされ、先端部が密閉状に形成される熱風送出
用主管（１０）を装入し、該熱風送出用主管（１０）外
周には上記それぞれの加熱用ピン（８）、 （８）。Therefore, a hot air delivery main pipe (10) whose base is a hot air inlet (9) and whose tip is formed in a sealed shape is inserted into the hollow h) of the rotating shaft (4). On the outer periphery of the main pipe (10) are the above-mentioned heating pins (8), (8).
・・・の中空内に挿通され、且つ上記熱風送出用主管（
ｌＯ）内と連通される熱風送出用支管（１１）、 （１
１）。... is inserted into the hollow, and the hot air delivery main pipe (
hot air delivery branch pipes (11), (1
1).
・・・を周設するものである。...is established.
又上記熱風送出用主管（１０）の上記熱風送入口（９）
は、上記回転継手（５）に横置される熱風供給源（１２
）と連通状に構成され、しかも上記回転継手（５）の下
方に設けられるモーター（１３）との間にチェーン等の
連動体（１４）を介することによって一体的に回転する
構成となすものである。Also, the hot air inlet (9) of the hot air delivery main pipe (10)
is a hot air supply source (12) placed horizontally on the rotary joint (5).
), and is configured to rotate integrally with the motor (13) provided below the rotary joint (5) by interposing an interlocking body (14) such as a chain. be.
なお、上記熱風送入口（９）と上記熱風供給源（１２）
との連結部（１５）に於いてはベアリング等を介在させ
上記熱風退出用主管（１０）の回転に対して支障なく充
分に熱風を送入できる構成とするものである。Note that the hot air inlet (9) and the hot air supply source (12)
A bearing or the like is interposed at the connection part (15) with the hot air exit pipe (10), so that a sufficient amount of hot air can be supplied without any hindrance to the rotation of the hot air exit main pipe (10).
又、上記ケーシング（１）外周面には所要数の空気抜孔
（１Ｂ）、 （１６）、 ・・を周設するものであり
、該空気抜孔（１６）、 （１６）、・・・は、上記ケ
ーシング（１）内で攪拌乾燥される粉体が外部に、飛散
しない様に上記空気抜孔（１６）、 （１６）、・・内
部に、網状のフィルターを設ける事が望ましい。In addition, the required number of air vent holes (1B), (16), etc. are provided on the outer peripheral surface of the casing (1), and the air vent holes (16), (16),... It is desirable to provide a mesh filter inside the air vent holes (16), (16), etc. so that the powder stirred and dried in the casing (1) does not scatter to the outside.
以上の構成より成る本発明では、熱風供給源（１２）か
ら常時供給されろ熱風が熱風送出用主管（１０）内に送
り込まれ、上記熱風送出用主管（１０）外周面に周設さ
れる熱風送出用支管（１１）、 （１１）、・・・先端
より加熱用ピン（８）、 （８）、 ・・内に放出さ
れ、その為に上記加熱用ピン（８）、 （８）、・・・
は急激に加熱されるものであり、更に上記加熱用ピン（
８）、 （８）。In the present invention having the above configuration, hot air constantly supplied from the hot air supply source (12) is sent into the main hot air delivery pipe (10), and the hot air is provided around the outer peripheral surface of the main hot air delivery pipe (10). The delivery branch pipes (11), (11), ... are discharged from the tips into the heating pins (8), (8), ..., and therefore the heating pins (8), (8), ...・・・
is heated rapidly, and the above heating pin (
8), (8).
・・・内より熱風が回動軸（４）中空内へと流れ込み、
同回動軸（４）中空内が熱風により充満することによっ
て上記回動軸（４）外周面が加熱され、しかも上記回動
軸（４）中空内に充満された熱風が排気用ピン（７）、
（７）、 ・・内を通り上記排気用ピン（７）、（
７）、・・・の先端に形成される排気口（６）、 （６
）、・・・よリケーシング（１）内へ放出されるもので
あり、この場合上記排気用ピン（７）、 （７）、・・
・自体も加熱され、且つ上記ケーシング（１）内へ熱風
をも供給する事となる。...Hot air flows from the inside into the hollow rotating shaft (4),
As the hollow inside of the rotating shaft (4) is filled with hot air, the outer peripheral surface of the rotating shaft (4) is heated, and the hot air filling the hollow inside of the rotating shaft (4) is heated by the exhaust pin (7). ),
(7), ... through the above exhaust pin (7), (
Exhaust ports (6), (6) formed at the tips of (7), ...
), ... is discharged into the recasing (1), and in this case, the above exhaust pins (7), (7), ...
- The casing itself is heated, and hot air is also supplied into the casing (1).
つまりこの熱風の巡回作用に依り、間接的加熱面積が大
となり、しかも熱風に依る直接的加熱をも併用する構成
と成る為に、粉体投入口（２）より投入される含水粉体
は、上述した殖く急激にそれぞれ加熱される上記＠動軸
（４）外周面及び同外周面に螺旋状に突設される上記加
熱用ピン（８）、 （８）。In other words, due to the circulating action of this hot air, the indirect heating area becomes large, and since the configuration also uses direct heating using the hot air, the water-containing powder introduced from the powder inlet (2) is The above-mentioned heating pins (8), (8) are spirally protruded from the outer circumferential surface of the @ moving shaft (4) and the outer circumferential surface of the moving shaft (4), respectively, which are rapidly heated.
・・・及び上記排気用ピン（７）、 （７）、 ・・
によって回転。...and the above exhaust pin (7), (7), ...
Rotated by.
攪拌されると共に、間接的加熱及び直接的加熱に依り上
記含水粉体表面は、瞬時の内に乾燥される為に、上記ケ
ーシング（１）内面への付着、又は上記回動軸（４）へ
の付着による作業効率の低下を未然に防ぐ事と成り、更
に粉体乾燥品出口（３）に攪拌、押送される間に充分に
乾燥されるものである。While being stirred, the surface of the water-containing powder is instantly dried by indirect heating and direct heating, so that it does not adhere to the inner surface of the casing (1) or to the rotating shaft (4). This prevents a decrease in work efficiency due to the adhesion of powder, and furthermore, the powder is sufficiently dried while being stirred and pushed to the dry powder outlet (3).
又上記排気用ピン（７）、 （７）、・・・先端の排気
口（６）、 （６）、・・・より熱風が、上記ケーシン
グ（１）内へ放出されることで上記ケーシング（１）内
の温度が上昇し、上記回動軸（４）内の温度との差異が
小さくなる為に、加熱効率が非常に良好となるものであ
る。In addition, the hot air is discharged into the casing (1) from the exhaust ports (6), (6), etc. at the tips of the exhaust pins (7), (7),... 1) increases, and the difference from the temperature inside the rotating shaft (4) becomes smaller, resulting in very good heating efficiency.
次に熱流体としてボイラーの燃焼排ガスを用いて石炭を
乾燥した本発明方法と、従来の汚泥乾燥装置により同様
に石炭の乾燥を行なった場合とを対比させて下記表−１
に示す。Next, the following Table 1 compares the method of the present invention in which coal is dried using boiler combustion exhaust gas as a thermal fluid and the case in which coal is similarly dried using a conventional sludge dryer.
Shown below.
表−１
このように熱流体流路を有する掻ピンを用いるか、ある
いはこれに他の手段を組合わせることで従来にない優れ
た特性を現出し得る。Table 1 As described above, by using a scraping pin having a thermal fluid flow path, or by combining it with other means, excellent characteristics that have never been seen before can be achieved.
即ち、本願発明は粉体若しくは粉粒体の装入充填率を例
えば５０〜９０％と高くすることにより、まず装入物の
流動が大きく損なわれ、しかも吹込まれる熱風、あるい
は間接乾燥帯からの装入物への熱伝達が局部集中し、不
均等乾燥及び全体の熱効率低下を招来する。この欠点を
解決するために回動軸の径方向に突出した掻ピン内部に
熱流体を循環せしめるか、又は上記掻ピンの適宜個所に
上記熱流体の噴出孔を穿設した掻ピンのいずれか、ある
いはこれ等の組合せから成る掻ピンを用いることで、上
記装入物の流動を十分に行なわしめた。That is, in the present invention, by increasing the charging loading rate of powder or granular material to, for example, 50 to 90%, the flow of the charging material is greatly impaired, and moreover, the flow of the charging material is greatly impaired, and moreover, the flow of the charging material is greatly impaired, and moreover, Heat transfer to the charge is locally concentrated, leading to uneven drying and a decrease in overall thermal efficiency. In order to solve this drawback, either the heating fluid is circulated inside the scraping pin that protrudes in the radial direction of the rotating shaft, or the scraping pin is provided with jet holes for the hot fluid at appropriate locations. By using scraping pins made of , or a combination thereof, sufficient flow of the charge was achieved.
又充填率を高く保持することに加えて、筒体内部を攪拌
回動する掻ピン自体の接触率の向上と掻ピンの回動に伴
う空隙流動とによる相乗作用によって大幅な熱伝達の向
上を達成した。In addition to maintaining a high filling rate, the synergistic effect of the improved contact ratio of the scraping pin itself, which stirs and rotates inside the cylinder, and the air gap flow accompanying the rotation of the scraping pin, significantly improves heat transfer. Achieved.
特に掻ピン、あるいは回動軸部から一部熱流体を噴出せ
しめて乾燥す°る場合は充填率も高め且つ十分な流動の
相乗作用による効果が大である。In particular, when drying is performed by blowing out a portion of the hot fluid from the scraping pin or rotating shaft, the filling rate is increased and the synergistic effect of sufficient flow is very effective.
またこの噴出熱流体は例えば装入物の未充填部である筒
体の上部空間にまず排気されて、例えば該筒体に連設さ
れた少なくとも一部の排気筒を介して系外に放出される
。この際に装入側に設けた排気筒とそれ以後に設けた排
気筒を用いて長尺の同一空間からなる炉を用いて装入側
から順次水分濃度に応じた乾燥と排気を行なうことによ
り掻ピンあるいは筒体等への付着解消は勿論のこと熱効
率の向上を図ることができる。又前記の筒体上部に形成
されろ空間部を該掻ピンが通過する際に下位部は装入物
の充填層内にあって所定の流体噴出抵抗を生ずることか
ら排気筒部に設けたドラフト調整弁を介して該空間部の
内圧をコントロールすることにより該空間部への熱流体
の逸出を抑制し該掻ピンから装入物の充填署内に熱流体
の均等な噴出を行なうことができる。In addition, this ejected hot fluid is first exhausted to the upper space of the cylinder, which is the unfilled part of the charged material, and is then discharged to the outside of the system, for example, through at least a part of the exhaust pipe connected to the cylinder. Ru. At this time, by using a furnace consisting of a long and identical space using an exhaust pipe installed on the charging side and an exhaust pipe installed after it, drying and exhaust are performed sequentially from the charging side according to the moisture concentration. Not only can it eliminate adhesion to scraping pins or cylinders, but it can also improve thermal efficiency. In addition, when the scraping pin passes through the filter space formed in the upper part of the cylinder, the lower part is in the packed bed of charged material and causes a certain fluid ejection resistance, so the draft provided in the exhaust cylinder part is By controlling the internal pressure of the space through the regulating valve, escape of the hot fluid into the space can be suppressed, and the hot fluid can be uniformly spouted from the scraper pin into the charge filling station. can.
〈発明の効果〉
以上述べて来た如く本発明では、含水粉体の投入と同時
に瞬時の内に乾燥を行なう事ができる為に、ケーシング
内面及び回動軸表面への含水粉体の付着を未然に防ぐ事
ができ、その事に依り作業効率を向上させると共に、省
エネルギー化と生産性の向上及び乾燥機の小型化等の種
々の効果を奏するものである。<Effects of the Invention> As described above, in the present invention, since the water-containing powder can be instantly dried at the same time as the water-containing powder is introduced, it is possible to prevent the water-containing powder from adhering to the inner surface of the casing and the rotating shaft surface. This can be prevented, thereby improving work efficiency and producing various effects such as energy saving, productivity improvement, and miniaturization of dryers.
第１図は本発明の一部切欠全体説明図、第２図は第１図
Ｉ−Ｉ線に於ける要部拡大断面図、第３図は第１図■−
■線に於ける要部拡大断面図、第４図及び第５図は本発
明のそれぞれの掻ピンの他の一例を示す要部拡大断面図
。
図中、 （１）°ケーシング
（４）回動軸
（６Ｌ （６）、 ・・°排気口
（７）、 （７）、 ・：排気用ピン（８）、 （８
）、・・・＝加熱用ピン（９）・熱風送入口
（１０）：熱風送出用主管
（１１）、 （１１）、・・ 熱風送出用支管特許出願
人 株式会社近藤合金機械
代 理 人 有吉 教晴
第４図
第１図
第２図Fig. 1 is a partially cutaway overall explanatory diagram of the present invention, Fig. 2 is an enlarged sectional view of the main part taken along line I-I in Fig. 1, and Fig. 3 is Fig. 1 -
FIGS. 4 and 5 are enlarged sectional views of essential parts taken along line (2), and FIGS. 4 and 5 are enlarged sectional views of essential parts showing other examples of each of the scraping pins of the present invention. In the figure, (1) °Casing (4) Rotating shaft (6L (6), . . . °Exhaust port (7), (7), .: Exhaust pin (8), (8)
), ... = Heating pin (9) / Hot air inlet (10): Main pipe for hot air delivery (11), (11), ... Branch pipe for hot air delivery Patent applicant Kondo Alloy Machinery Co., Ltd. Agent Ariyoshi Noriharu Figure 4 Figure 1 Figure 2
Claims (1)
し、上記回転軸の外周面上に適宜間隔をもって植設され
た掻ピンを介して装入物を移送し、且つ流動せしめつゝ
、上記熱流体流路を介して、上記掻ピン内部に熱流体を
送供して乾燥することを特徴とする粉粒体の乾燥方法。 ２、円形断面を有するケーシング内に該ケーシングと同
軸状に中空の回動軸を内挿し、該回動軸の外周面に適宜
間隔をもって基部が同回動軸の中空内に連通する中空の
加熱用掻ピンを植設せしめたことを特徴とする粉粒体の
乾燥装置。 ３、掻ピンの基部が回動軸の中空内に連通し、該掻ピン
内を熱流体が循環し上記回動軸の中空内に排気されるこ
とを特徴とする特許請求の範囲第２項記載の粉粒体の乾
燥装置。 ４、掻ピンの基部が回動軸の中空内に連通し、該掻ピン
に熱流体の噴出孔を穿孔したことを特徴とする特許請求
の範囲第２項記載の粉粒体の乾燥装置。 ５、基部が回動軸中空内に連通し、排気口を有する中空
の排気用ピンと、基部が同様に上記回動軸中空内に連通
し密閉状に形成される中空の加熱用ピンをそれぞれ交互
に突設せしめ、且つ上記回動軸中空内に基部が熱風送入
口とされ、しかも上記それぞれの加熱用ピン内に挿通さ
れる熱風送出用の支管を周設せしめた熱風送出用主管を
装入すると共に、上記回動軸と上記熱風送出用主管とが
一体的に回転する如くなしたことを特徴とする特許請求
の範囲第２項記載の粉粒体の乾燥装置。 ６、中空部を有する回動軸に熱流体の噴出孔を設けたこ
とを特徴とする特許請求の範囲第２項〜第５項のいずれ
かの項に記載の粉粒体の乾燥装置。[Claims] 1. A rotating shaft having a thermal fluid flow path is inserted in the axial direction of the cylindrical body, and the charged material is passed through scraping pins implanted at appropriate intervals on the outer peripheral surface of the rotating shaft. A method for drying powder or granular material, characterized in that the method comprises: transferring and flowing a hot fluid, and then supplying a hot fluid to the inside of the scraping pin via the hot fluid flow path to dry it. 2. A hollow rotating shaft is inserted into a casing having a circular cross section coaxially with the casing, and the base of the rotating shaft communicates with the hollow of the rotating shaft at an appropriate interval on the outer peripheral surface of the hollow heating device. A drying device for powder and granular material, characterized in that a scraping pin is installed. 3. Claim 2, characterized in that the base of the scraper pin communicates with the hollow interior of the rotating shaft, and a hot fluid circulates within the scraper pin and is exhausted into the hollow interior of the rotating shaft. The drying device for powder and granular material described above. 4. The apparatus for drying powder and granular material according to claim 2, wherein the base of the scraping pin communicates with the hollow of the rotating shaft, and the scraping pin is provided with a hot fluid jet hole. 5. Alternating between hollow exhaust pins whose bases communicate with the hollow interior of the rotating shaft and have exhaust ports, and hollow heating pins whose bases communicate with the hollow interior of the rotating shaft and are formed in a sealed shape. A hot air delivery main pipe is installed in the hollow of the rotating shaft, the base of which serves as a hot air delivery inlet, and which has branch pipes for hot air delivery inserted into each of the heating pins. The apparatus for drying powder or granular material according to claim 2, wherein the rotating shaft and the hot air delivery main pipe are configured to rotate integrally. 6. The apparatus for drying powder or granular material according to any one of claims 2 to 5, characterized in that a rotating shaft having a hollow portion is provided with an ejection hole for hot fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10423186A JPS62261884A (en) | 1986-05-06 | 1986-05-06 | Method and device for drying granule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10423186A JPS62261884A (en) | 1986-05-06 | 1986-05-06 | Method and device for drying granule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62261884A true JPS62261884A (en) | 1987-11-14 |
Family
ID=14375188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10423186A Pending JPS62261884A (en) | 1986-05-06 | 1986-05-06 | Method and device for drying granule |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62261884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286364A (en) * | 2001-03-26 | 2002-10-03 | Tsukasa Kogyo Kk | Powder and glanular material drying device |
-
1986
- 1986-05-06 JP JP10423186A patent/JPS62261884A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286364A (en) * | 2001-03-26 | 2002-10-03 | Tsukasa Kogyo Kk | Powder and glanular material drying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0002825A1 (en) | Method and apparatus for drying particulate material | |
| JPS62261884A (en) | Method and device for drying granule | |
| JP4066262B2 (en) | Waste pyrolysis equipment | |
| CN107597050A (en) | Horizontal multi-shaft pressure-bearing solid phase reaction kettle | |
| JPS613986A (en) | Heat transfer pipe build-in type horizontal type fluidized bed drier | |
| JP2004344710A5 (en) | ||
| US3156455A (en) | Methods of effecting heat exchange and heat transfer devices therefor | |
| JPS6219326B2 (en) | ||
| CN208791451U (en) | Indirect heating type sludge drying charing mechanism | |
| CN205917162U (en) | Carousel formula mud mummification device | |
| JPH1047630A (en) | Rotary drying/combustion apparatus for wet substance | |
| CN206051824U (en) | A kind of mud drying device | |
| CN211836335U (en) | Spray dryer for preventing yolk powder from sticking to wall | |
| CN209456281U (en) | A kind of sludge drying system | |
| CN206094808U (en) | Novel thick liquids stirring desiccator | |
| JPH05261201A (en) | Method for drying high moisture material and equipment therefor | |
| CN208872016U (en) | A kind of pipe bundle drier for cornstarch processing | |
| JP6503493B1 (en) | Processing unit | |
| JP3685222B2 (en) | Horizontal stirring device | |
| JPS6375478A (en) | Drier | |
| JPS6314076A (en) | Method of operating rotary type drier | |
| SU1089374A1 (en) | Method and installation for drying loose materials | |
| JPS58127782A (en) | Rotary drier for fine coal for coke equipped with indirect heating tubes | |
| JP2524027Y2 (en) | Call-in-tube dryer | |
| CN111995221A (en) | Sludge drying device and drying method for CFB boiler |