JPH035832Y2 - - Google Patents
Info
- Publication number
- JPH035832Y2 JPH035832Y2 JP13513389U JP13513389U JPH035832Y2 JP H035832 Y2 JPH035832 Y2 JP H035832Y2 JP 13513389 U JP13513389 U JP 13513389U JP 13513389 U JP13513389 U JP 13513389U JP H035832 Y2 JPH035832 Y2 JP H035832Y2
- Authority
- JP
- Japan
- Prior art keywords
- dried
- hot air
- net conveyor
- drying
- cushioning material
- 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
- 239000000463 material Substances 0.000 claims description 72
- 238000001035 drying Methods 0.000 claims description 59
- 229920000728 polyester Polymers 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000012369 In process control Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Description
【考案の詳細な説明】
本考案は連続乾燥装置に関する。さらに詳しく
は、繊維などの乾燥において乾燥室内に架設され
たネツトコンベアによつて被乾燥物を搬送し熱風
を循環せしめながら連続的、かつ均一な乾燥を行
ない得るようにした連続乾燥装置の改良にかかる
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous drying device. More specifically, we will focus on improving continuous drying equipment for drying textiles, etc., in which the material to be dried is conveyed by a net conveyor installed in a drying chamber, and the material is continuously and uniformly dried while circulating hot air. Such is the case.
従来、繊維のスライバー、トウ、布帛等を連続
して乾燥処理する乾燥機には多種多様のものがあ
るが、乾燥方式によつて熱風式、接触加熱式、加
熱蒸気式等に分類され、これらの乾燥機のうち、
熱風式乾燥機は被処理物を急激に乾燥するため、
他の乾燥機と比較してマイグレーシヨン、風合い
などの点で優れており、したがつて、繊維等の乾
燥においても中間乾燥或いは最終乾燥に広く使用
されている。そして、被乾燥物を搬送せしめなが
ら熱風を循環させて乾燥を行なう連続乾燥装置で
は、被乾燥物を入口開口部より連続導入し出口開
口部より連続搬出せしめるようにした乾燥室を設
け、外部より乾燥装置内に循環移動される通気性
ネツトコンベアに被乾燥物を載置し、乾燥室内を
搬送させつつ熱風を循環せしめる循環フアンを設
け、さらに温度を制御する熱交換機を熱風の循環
路に配設して乾燥を行なうもの、或いは一定の間
隔をおいて前後又は上下に配設され、軸方向横向
きに円周方向に回転するよう軸架された通気孔を
有する一群の金属製多孔ドラムの内側から熱風循
環フアンによつて熱風を吸引循環させ、さらに温
度を制御する熱交換機を熱風の循環路に配設し、
被乾燥物を順次蛇行状に掛け回しながら熱風の貫
流によつて乾燥を行なうもの等が実用化されてい
る。
Conventionally, there are a wide variety of dryers that continuously dry fiber slivers, tows, fabrics, etc., but they are classified by drying method into hot air type, contact heating type, heated steam type, etc. Of the dryers,
Because hot air dryers dry the processed material rapidly,
It is superior to other dryers in terms of migration, texture, etc., and is therefore widely used for intermediate drying or final drying of fibers, etc. Continuous drying equipment, which performs drying by circulating hot air while conveying the material to be dried, is equipped with a drying chamber in which the material to be dried is continuously introduced from an inlet opening and continuously carried out from an outlet opening. The items to be dried are placed on an air-permeable net conveyor that circulates within the drying device, and a circulation fan is installed to circulate hot air while transporting it inside the drying chamber.A heat exchanger to control the temperature is also placed in the hot air circulation path. or the inside of a group of metal perforated drums having ventilation holes placed front and back or above and below at regular intervals and axially mounted to rotate laterally in the axial direction and in the circumferential direction. The hot air is sucked and circulated by a hot air circulation fan, and a heat exchanger that controls the temperature is installed in the hot air circulation path.
A device has been put into practical use in which the material to be dried is sequentially passed around in a meandering manner while being dried by passing through hot air.
（考案が解決しようとする問題点）
上記従来の乾燥装置では、ネツトコンベア等を
通過する前後の熱風の流れを整え熱風を確実にネ
ツトコンベア等を通過するようにすることはでき
ても、乾燥室内を貫流し被乾燥物を通過する熱風
の流れを平準化できないという問題がある。すな
わち、従来の乾燥装置では、コンベアが有する熱
風通過抵抗が被乾燥物のそれに比較して小さく設
計されており、熱風の流れを均一にできないこと
である。このため被乾燥物の乾燥状態が不均一な
ものとなり、乾燥の均一化が図れないという問題
が生じていた。そして、これらの問題を解決する
ために特公昭58−44944号には乾燥装置の側壁に
塞ぐ板を取り付け、ネツトコンベアを挟んで下側
に被乾燥体の熱風通過抵抗に比較して大きな熱風
通過抵抗を有する多孔質板を設けたものが提案さ
れているが、該コンベア上に載置された被乾燥物
に熱風を循環して供給せしめる場合、多孔質板の
抵抗が大きいために乾燥機の側壁内で熱風の回り
込みが起こり易い。このためネツトコンベアの熱
風通過抵抗が低下して被乾燥物を通過する熱風の
流れをより均一にできないという難点がある。(Problem to be solved by the invention) In the conventional drying equipment described above, although it is possible to adjust the flow of hot air before and after passing through the net conveyor, etc., and ensure that the hot air passes through the net conveyor, etc., There is a problem in that the flow of hot air flowing through the room and passing through the material to be dried cannot be leveled. That is, in the conventional drying apparatus, the hot air passage resistance of the conveyor is designed to be smaller than that of the object to be dried, and the flow of the hot air cannot be made uniform. For this reason, the drying state of the material to be dried becomes non-uniform, resulting in a problem that uniform drying cannot be achieved. In order to solve these problems, Japanese Patent Publication No. 58-44944 installed a blocking plate on the side wall of the drying device, and installed a block board on the side wall of the drying device, which had a large hot air passage resistance compared to the hot air passage resistance of the objects to be dried. A dryer equipped with a porous plate with resistance has been proposed, but when hot air is circulated and supplied to the items placed on the conveyor, the resistance of the porous plate is large, making it difficult to operate the dryer. Hot air tends to circulate inside the side walls. For this reason, there is a problem that the resistance of the hot air passing through the net conveyor decreases, making it impossible to make the flow of the hot air more uniform through the objects to be dried.
したがつて、厚さに斑のある繊維塊等における
乾燥では熱風通過抵抗の低い薄い部分を通過し易
く逆に高い部分は通過量が少ないため、乾燥斑を
生じ易い結果となる。また、トウ、スライバーな
どの乾燥では含有されている水分を拡散蒸発せし
めるものであるが、これらの表面は熱風の移動が
極端に少ないため、厚さに斑のあるトウ、スライ
バーなどの乾燥においては、これが大きく影響す
ることになり、均一に乾燥することは甚だ困難で
ある。 Therefore, when drying a fiber mass or the like with uneven thickness, the hot air easily passes through thin parts with low passing resistance, and conversely, the amount of air passing through high parts is small, resulting in drying spots easily occurring. In addition, when drying tow, sliver, etc., the moisture contained in it is diffused and evaporated, but since there is extremely little movement of hot air on these surfaces, it is difficult to dry tow, sliver, etc. with uneven thickness. , this has a large effect and it is extremely difficult to dry uniformly.
さらに、別の角度からみても、近年繊維産業分
野において製造工程の省力化ないしは自動化の要
請がきわめて大である。たとえば乾燥工程での水
分率データーの正確な把握と共に、工程管理上も
均一、かつ安定した水分率を維持せしめることは
自動制御等を実施する場合の重要な要件でもあ
る。 Furthermore, from another perspective, there has been an extremely strong demand for labor saving or automation of manufacturing processes in the textile industry in recent years. For example, in addition to accurately grasping the moisture content data in the drying process, maintaining a uniform and stable moisture content in process control is also an important requirement when implementing automatic control.
本考案は駆動手段により駆動され、入口開口部
より連続導入し出口開口部より連続搬出させる通
気性を有するネツトコンベアを無端状に架設し、
これを乾燥室内に搬送せしめながら熱風を循環さ
せて被乾燥物の乾燥を行なう乾燥機において、上
方より下方へ向かつて指向する熱風循環路に、順
次上側より被乾燥物、通気性緩衝材、ネツトコン
ベアを密に積層し、かつ上記通気性緩衝材の熱風
通過抵抗を被乾燥物よりは小さく、ネツトコンベ
アよりは大きくすると共に、上記被乾燥物上方の
雰囲気とネツトコンベアの下方の雰囲気の差圧を
５〜15mmH2Oに設定した連続乾燥装置に係るも
のである。 The present invention is driven by a driving means, and has an air permeable net conveyor that is continuously introduced from an inlet opening and continuously carried out from an outlet opening, and is constructed in an endless manner.
In a dryer that dries objects to be dried by circulating hot air while transporting the objects into a drying chamber, the objects to be dried, air-permeable cushioning material, net The conveyors are densely stacked, and the hot air passage resistance of the air-permeable cushioning material is smaller than that of the objects to be dried, but greater than that of the net conveyor, and the pressure difference between the atmosphere above the objects to be dried and the atmosphere below the net conveyor is This relates to a continuous drying device in which the temperature is set at 5 to 15 mmH 2 O.
（問題点を解決するための手段）
本考案においては、厚さに斑のあるトウ、スラ
イバーなどの繊維塊を通過する熱風貫流量の不均
一化を解消しようとするものであり、これによつ
て製品に含まれる水分率の均一化、品質の安定化
を図ることを課題とする。この故に、本考案では
トウ、スライバーなどのような繊維の連続乾燥機
として、乾燥室内にネツトコンベアを架設した連
続乾燥装置の欠点を除去し、連続して均一な熱風
乾燥を行なうことのできる連続乾燥装置を提供す
るものである。(Means for solving the problem) The present invention attempts to eliminate the unevenness of the amount of hot air passing through fiber lumps such as tow and sliver that have uneven thickness. The goal is to equalize the moisture content of products and stabilize their quality. Therefore, in the present invention, as a continuous dryer for fibers such as tow and sliver, we have developed a continuous dryer that can perform continuous and uniform hot air drying by eliminating the disadvantages of continuous drying equipment in which a net conveyor is installed in the drying chamber. A drying device is provided.
（実施例）
以下本考案の実施態様を図面によつて説明する
が、本考案は図面の構造のみに限定されるもので
はなく、本考案の要旨を逸脱しない範囲でその構
造を適宜変更できることはいうまでもない。(Example) The embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited to the structure shown in the drawings, and the structure may be modified as appropriate without departing from the gist of the present invention. Needless to say.
第１図は本考案の連続乾燥装置の側面図であ
り、図中、１は乾燥機本体、２はネツトコンベ
ア、３はガイドロールである。このネツトコンベ
ア２は駆動手段（図示せず）により駆動され、熱
風を循環フアンにより循環せしめながら乾燥を行
なうものである。さらに、温度を制御する熱交換
機が熱風循環路に配設されている。トウ、スライ
バー等の被乾燥物４はネツトコンベア２に載置さ
れ入口開口部より連続導入し出口開口部より連続
搬出させ乾燥機本体１内を通つて循環移動するも
のである。 FIG. 1 is a side view of the continuous drying apparatus of the present invention, in which 1 is the main body of the dryer, 2 is a net conveyor, and 3 is a guide roll. This net conveyor 2 is driven by a driving means (not shown) and performs drying while circulating hot air using a circulation fan. Furthermore, a heat exchanger for controlling the temperature is arranged in the hot air circulation path. The material to be dried 4, such as tow or sliver, is placed on a net conveyor 2, continuously introduced through an inlet opening, continuously carried out through an outlet opening, and circulated through the main body 1 of the dryer.
第２図は第１図のＡ−Ａ線断面概要図であり、
ネツトコンベア２は乾燥機本体１の側壁と隔離壁
５によつて形成されている乾燥室６を通り、乾燥
機本体１の出口開口部より搬出され循環するよう
になつている。そして、ネツトコンベア２と被乾
燥物４との間には通気性緩衝材７が介設されてい
る。この通気性緩衝材７は無端状のネツトコンベ
ア２の外側全面にわたつて装着されており、両端
縁は布製フアスナー等適宜手段により連結されて
いる。第３図は本考案に係る通気性緩衝材の装着
状態を示す拡大断面図である。通気性緩衝材７は
被乾燥物４とネツトコンベア２との間に介設され
被乾燥物４、通気性緩衝材７、ネツトコンベア２
が密に積層された状態となつており、被乾燥物４
は該通気性緩衝材７を介して該コンベア２に直接
載置されコンベア通路を循環移動する。乾燥室６
内の熱風は上方より下方に向かつて指向し被乾燥
物４を貫流し通気性緩衝材７、さらにネツトコン
ベア２を通過し乾燥機本体１内を循環している。
該緩衝材７は乾燥室６の中で熱風の通過が可能で
あつて、トウ、スライバー等の繊維の乾燥温度に
耐える材質であればよく、ポリエステル、ガラス
繊維、或いはステンレス等を素材としたものが適
当であり、これらを重ねた構造であつてもよい。
例えば、ポリエステル布帛を用いる場合は50〜
400メツシユが適当であり、好ましくは200〜300
メツシユである。さらに通気度（c.c.／cm2／sec、
JIS Ｌ 1096 Ａ法、フラジール型試験機による
測定）は、15〜50の範囲が適当であり、好ましく
は20〜40である。 FIG. 2 is a schematic cross-sectional view taken along line A-A in FIG.
The net conveyor 2 passes through a drying chamber 6 formed by the side wall of the dryer main body 1 and the separating wall 5, and is carried out from the outlet opening of the dryer main body 1 and circulated. A breathable cushioning material 7 is interposed between the net conveyor 2 and the dried material 4. This breathable cushioning material 7 is attached to the entire outer surface of the endless net conveyor 2, and both ends thereof are connected by appropriate means such as a cloth fastener. FIG. 3 is an enlarged sectional view showing the state in which the breathable cushioning material according to the present invention is attached. The breathable cushioning material 7 is interposed between the object to be dried 4 and the net conveyor 2.
are in a densely layered state, and the material to be dried 4
is placed directly on the conveyor 2 via the breathable cushioning material 7 and circulates through the conveyor path. Drying room 6
The hot air inside is directed from above to below, flows through the material to be dried 4, passes through the breathable cushioning material 7, further passes through the net conveyor 2, and circulates within the dryer main body 1.
The cushioning material 7 may be made of any material that allows hot air to pass through the drying chamber 6 and can withstand the drying temperature of fibers such as tow and sliver, and may be made of polyester, glass fiber, stainless steel, or the like. is suitable, and a structure in which these are overlapped may be used.
For example, when using polyester fabric, 50~
400 meshes is appropriate, preferably 200-300
It's mesh. Furthermore, air permeability (cc/cm 2 /sec,
JIS L 1096 A method, measurement using a Frazier type tester) is suitably in the range of 15 to 50, preferably 20 to 40.
また、乾燥室６内での前記通気性緩衝材７と被
乾燥物４が一体となつた熱風循環路の上下即ち被
乾燥物４の上部の雰囲気とネツトコンベア２の下
部の雰囲気の差圧は５〜15mmH2Oの範囲が適当
であり、これが15mmH2O以上では熱風の供給量
が不足するため所望の乾燥効果を得ることは困難
である。 Moreover, the differential pressure between the upper and lower parts of the hot air circulation path where the breathable cushioning material 7 and the material to be dried 4 are integrated in the drying chamber 6, that is, the atmosphere above the material to be dried 4 and the atmosphere below the net conveyor 2 is A range of 5 to 15 mmH 2 O is appropriate, and if it exceeds 15 mmH 2 O, the amount of hot air supplied will be insufficient, making it difficult to obtain the desired drying effect.
このように本考案に係る連続乾燥装置では、被
乾燥物４は直接該緩衝材７の上に載置され当接さ
れた状態として乾燥機本体１の入口開口部より出
口開口部に向かつてネツトコンベア２と共に移動
し連続して搬出され、乾燥機本体１を循環する熱
風を被乾燥物４に指向せしめて乾燥を行なうもの
であり、被乾燥物４を通過する熱風の貫流量を均
一に調整する通気性緩衝材７を被乾燥物４とネツ
トコンベア２との間に介設し被乾燥物、通気性緩
衝材、ネツトコンベアを密に積層すると共に、被
乾燥物上方の雰囲気とネツトコンベアの下方の雰
囲気の差圧を５〜15mmH2Oに設定した構成とな
つている。 As described above, in the continuous drying apparatus according to the present invention, the material to be dried 4 is directly placed on and in contact with the cushioning material 7, and the material is moved from the inlet opening of the dryer main body 1 to the outlet opening. Drying is carried out by directing the hot air, which moves along with the conveyor 2 and is continuously carried out and circulates through the dryer body 1, toward the object 4 to be dried, and uniformly adjusts the flow rate of the hot air passing through the object 4 to be dried. A breathable cushioning material 7 is interposed between the material to be dried 4 and the net conveyor 2, so that the material to be dried, the breathable cushioning material, and the net conveyor are densely stacked, and the atmosphere above the material to be dried and the net conveyor are The configuration is such that the differential pressure in the atmosphere below is set to 5 to 15 mmH2O .
（作用） 次に、本考案の作用について説明する。(effect) Next, the operation of the present invention will be explained.
たとえば、アクリル・トウの如き被乾燥物４を
ネツトコンベア２に装着されたポリエステル網布
からなる通気性緩衝材７の上に載置し熱風を上記
被乾燥物４に指向させ循環せしめながら乾燥を行
ない、乾燥機本体１の入口開口部より出口開口部
の方向へ搬送させる。この場合、ネツトコンベア
２に装着される通気性緩衝材７は熱風の通過抵抗
が被乾燥物４より小さく、ネツトコンベア２より
は大きいものとなつており、更に被乾燥物上方の
雰囲気とネツトコンベアの下方の雰囲気の差圧が
５〜15mmH2Oとなつている。このためネツトコ
ンベア２に指向されて循環する熱風は通過抵抗の
大きいところには流れず、熱風の通過抵抗の低い
ところに流れる。したがつて、被乾燥物４とネツ
トコンベア２との間に通気性緩衝材７を介設せし
めることにより、被乾燥物４と通気性緩衝材７の
熱風通過抵抗を相等しいか、又は被乾燥物４の熱
風通過抵抗を熱風供給量に不足がない程度に大と
することができ、被乾燥物４に厚さ斑があつても
貫流する熱風が平準化されて均一な乾燥を行なう
ことができる。 For example, an object 4 to be dried, such as acrylic tow, is placed on a breathable cushioning material 7 made of polyester net cloth attached to a net conveyor 2, and hot air is directed toward and circulated toward the object 4 to dry. Then, the dryer body 1 is transported from the inlet opening to the outlet opening. In this case, the air-permeable cushioning material 7 attached to the net conveyor 2 has a passage resistance of hot air smaller than that of the objects to be dried 4 but greater than that of the net conveyor 2, and furthermore, the resistance between the atmosphere above the objects to be dried and the net conveyor The differential pressure in the atmosphere below is 5 to 15 mmH 2 O. Therefore, the hot air directed and circulated by the net conveyor 2 does not flow to areas where the passage resistance is high, but flows to areas where the hot air passage resistance is low. Therefore, by interposing the breathable cushioning material 7 between the material to be dried 4 and the net conveyor 2, the hot air passage resistance of the material to be dried 4 and the breathable cushioning material 7 can be equalized or The hot air passage resistance of the object 4 can be increased to the extent that there is no shortage of hot air supply, and even if the object 4 to be dried has uneven thickness, the hot air flowing through it can be leveled and uniform drying can be performed. can.
さらに、繊維等での熱風を循環させる熱風貫流
系の乾燥においては、上記の如き熱風の通過抵抗
の他、その表面の境界層の作用も影響が大きい。
いわんや、厚さ斑のあるトウ、スライバー等のよ
うな平板でない物体の乾燥においては、その表面
に形成される空気の境界層は水分の拡散蒸発を阻
み乾燥の妨げとなるものである。一般に物体の表
面は十分湿つているときには表面の温度に相当し
た飽和水蒸気分圧を示し、まわりがそれより低い
水蒸気分圧をもつときにはその差によつて水分が
蒸発していく。そして、トウ、スライバー等のよ
うな繊維塊が乾燥するのはその中に含まれている
水分が拡散蒸発していくからである。しかしなが
ら、繊維塊等の表面は熱風の流速による影響が少
ない空気の境界層（限界層とも呼ぶ）に覆われて
いる。この境界層の繊維塊等に接する部分は飽和
水蒸気で形成されており、熱風による動きがきわ
めて少なく境界層外側の熱風に通じている。この
ため被乾燥物に含まれている水分の拡散蒸発が抑
制され乾燥が進み難い。 Furthermore, in drying a hot air flow-through system that circulates hot air through fibers, etc., in addition to the above-mentioned hot air passage resistance, the effect of the boundary layer on the surface has a large influence.
In addition, when drying objects that are not flat, such as tow or sliver with uneven thickness, the boundary layer of air formed on the surface prevents the diffusion and evaporation of moisture and hinders drying. Generally, when the surface of an object is sufficiently moist, it exhibits a saturated water vapor partial pressure corresponding to the surface temperature, and when the surrounding area has a lower water vapor partial pressure, water evaporates due to the difference. The reason why a fiber mass such as tow or sliver dries is because the moisture contained therein diffuses and evaporates. However, the surface of the fiber mass is covered with an air boundary layer (also called a limiting layer) that is less affected by the flow velocity of hot air. The portion of this boundary layer in contact with the fiber mass is made of saturated water vapor, and has very little movement due to hot air and communicates with the hot air outside the boundary layer. Therefore, diffusion and evaporation of moisture contained in the material to be dried is suppressed, making it difficult for drying to proceed.
本考案に係る連続乾燥装置においては、被乾燥
物４とネツトコンベア２との間に通気性緩衝材７
を介設した構成となつている。この通気性緩衝材
７は通気性を有する多孔質体よりなり、熱源（図
示せず）より供給され乾燥室６内で被乾燥物４を
貫流して循環せしめる熱風の通過風路を形成して
いる。そして、被乾燥物４は直接該緩衝材７に載
置されており、被乾燥物４に対して指向される風
圧、風速等の異なつた熱風は該緩衝材７を通過す
る際の流れ抵抗によつて分散され、熱風は均流化
されて貫流する。また一方、該緩衝材７は被乾燥
物４を直接載置し当接せしめた状態であるため、
被乾燥物４に指向される熱風はその下流位置に当
接せしめて装着された通気性緩衝材７の存在によ
り、その流れを阻まれ被乾燥物４に当たつた直後
の熱風の一部は分散、或いは屈折し、この際被乾
燥物４に当接された該緩衝材７がクツシヨンの機
能を果たし、さらに風圧、風速等も吸引して被乾
燥物４の走行方向とほぼ直角方向の振動を与える
こと等が考えられる。このため被乾燥物４の表面
に形成された境界層を破壊し易い状態となり、ト
ウ、スライバー等に含まれている水分を熱風と直
接接触せしめることができる。 In the continuous drying device according to the present invention, a breathable cushioning material 7 is provided between the material to be dried 4 and the net conveyor 2.
The configuration is such that This breathable cushioning material 7 is made of a porous material having breathability, and forms a passage for hot air supplied from a heat source (not shown) to circulate through the material to be dried 4 in the drying chamber 6. There is. The object to be dried 4 is placed directly on the buffer material 7, and the hot air directed toward the object to be dried 4 with different wind pressures, wind speeds, etc. is subject to flow resistance when passing through the buffer material 7. As a result, the hot air is dispersed, and the hot air is equalized and flows through the hot air. On the other hand, since the cushioning material 7 is in a state where the material to be dried 4 is directly placed and in contact with it,
The flow of hot air directed toward the object to be dried 4 is blocked by the presence of the breathable cushioning material 7 attached to the downstream position, and a portion of the hot air immediately after hitting the object to be dried 4 is The cushioning material 7 is dispersed or refracted, and at this time, the cushioning material 7 in contact with the object 4 to be dried functions as a cushion, and also absorbs wind pressure, wind speed, etc., and vibrates in a direction approximately perpendicular to the running direction of the object 4 to be dried. It is conceivable to give Therefore, the boundary layer formed on the surface of the material to be dried 4 is easily destroyed, and the moisture contained in the tow, sliver, etc. can be brought into direct contact with the hot air.
第４図は従来法のネツトコンベアによるアクリ
ル・トウの乾燥と本考案に係る装置により処理し
た場合の水分率分布の比較を示すグラフである。
乾燥機のネツトコンベア上を走行移動するアクリ
ル・トウから12本を採取し、それぞれの水分率％
を測定したものである。これによれば、従来法で
は水分率％のバラツキが大きいが、本考案に係る
装置による処理によるものではその数値の変動は
かなり小さくなつている。 FIG. 4 is a graph showing a comparison of moisture content distribution when acrylic tow is dried using a conventional net conveyor and treated using the apparatus according to the present invention.
Collect 12 pieces of acrylic tow as it moves on the net conveyor of the dryer, and calculate the moisture content of each piece (%).
was measured. According to this, in the conventional method, there is a large variation in the moisture content %, but in the treatment using the apparatus according to the present invention, the variation in the numerical value is considerably small.
以上のように、本考案に係る連続乾燥装置は、
被乾燥物とネツトコンベアの間に当接せしめて通
気性緩衝材を介設し被乾燥物、通気性緩衝材、ネ
ツトコンベアを密に積層すると共に、被乾燥物上
方の雰囲気をネツトコンベアの下方の雰囲気の差
圧を５〜15mmH2Oに設定した構成とすることに
よつて、従来の熱風循環による乾燥装置でネツト
コンベアが有する熱風通過抵抗が被乾燥物に比し
て小さく設計されており、このため熱風の流れを
均一にできず乾燥の均一化を図れないという難点
を解消し得るものである。 As described above, the continuous drying device according to the present invention is
A breathable cushioning material is interposed between the material to be dried and the net conveyor, and the material to be dried, the breathable cushioning material, and the net conveyor are closely stacked, and the atmosphere above the material to be dried is transferred to the area below the net conveyor. By setting the differential pressure of the atmosphere at 5 to 15 mmH 2 O, the net conveyor is designed to have a smaller resistance to hot air passage than the material to be dried in conventional hot air circulation drying equipment. Therefore, it is possible to solve the problem of not being able to make the flow of hot air uniform and thus not achieving uniform drying.
（考案の効果）
本考案によれば、ネツトコンベアによつてト
ウ、スライバー等を搬送しつつ熱風を循環せしめ
て乾燥を行なう乾燥装置において、乾燥室内での
被乾燥物を貫流する熱風通過量を均一化し、ま
た、被乾燥物に含まれている水分の拡散蒸発を促
進せしめるものであるため均一な乾燥を行なうこ
とができ、被乾燥物の品質の安定を図ることがで
きる。さらに、構造が簡潔で保守点検も容易であ
り、乾燥能率を著しく増大せしめることができる
とともに、連続的、かつ安定した乾燥処理を行な
い得ることにより自動制御等の実施に寄与する等
の効果がある。(Effects of the invention) According to the invention, in a drying device that carries out drying by circulating hot air while conveying tow, sliver, etc. using a net conveyor, the amount of hot air passing through the material to be dried in the drying chamber can be reduced. Since it makes the drying process uniform and also promotes the diffusion and evaporation of moisture contained in the dried material, uniform drying can be achieved and the quality of the dried material can be stabilized. Furthermore, the structure is simple and easy to maintain and inspect, which significantly increases drying efficiency, and allows for continuous and stable drying, which contributes to the implementation of automatic control, etc. .
第１図は本考案に係る連続乾燥装置の概略構造
を示す側面図、第２図は第１図のＡ−Ａ線断面
図、第３図は本考案に係る通気性緩衝材の装着状
態を示す拡大断面図、第４図は従来法と本考案に
係る装置で処理したものとの水分率の比較を示す
グラフである。
１……乾燥機本体、２……ネツトコンベア、３
……ガイドロール、４……被乾燥物、５……隔離
壁、６……乾燥室、７……通気性緩衝材、８……
循環フアン、９……熱交換機。
Fig. 1 is a side view showing the schematic structure of the continuous drying device according to the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig. 3 shows the state in which the breathable cushioning material according to the present invention is installed. The enlarged cross-sectional view shown in FIG. 4 is a graph showing a comparison of moisture content between the conventional method and that treated with the apparatus according to the present invention. 1...Dryer body, 2...Net conveyor, 3
... Guide roll, 4 ... Material to be dried, 5 ... Isolation wall, 6 ... Drying room, 7 ... Breathable cushioning material, 8 ...
Circulation fan, 9...heat exchanger.
Claims (1)
続導入し出口開口部より連続搬出させる通気性
を有するネツトコンベアを無端状に架設し、こ
れを乾燥室内に搬送せしめながら熱風を循環さ
せて被乾燥物の乾燥を行なう乾燥機において、
上方より下方へ向つて指向する熱風循環路に、
順次上側より被乾燥物、通気性緩衝材、ネツト
コンベアを密に積層し、かつ上記通気性緩衝材
の熱風通過抵抗を被乾燥物よりは小さく、ネツ
トコンベアよりは大きくすると共に、上記被乾
燥物上方の雰囲気とネツトコンベアの下方の雰
囲気の差圧を５〜15mmH2Oに設定したことを
特徴とする連続乾燥装置。 ２ 前記通気性緩衝材がポリエステル又はステン
レス素材よりなる網状体である実用新案登録請
求の範囲第１項記載の連続乾燥装置。[Scope of Claim for Utility Model Registration] 1. A net conveyor with air permeability that is driven by a driving means and is continuously introduced from an inlet opening and continuously carried out from an outlet opening is installed in an endless manner, and while the net conveyor is conveyed into a drying room. In a dryer that circulates hot air to dry the material to be dried,
In the hot air circulation path directed from the top to the bottom,
The material to be dried, the breathable cushioning material, and the net conveyor are laminated in order from the top, and the hot air passage resistance of the breathable cushioning material is smaller than that of the material to be dried, but greater than that of the net conveyor, and the material to be dried is A continuous drying device characterized in that the differential pressure between the upper atmosphere and the lower atmosphere of the net conveyor is set to 5 to 15 mmH 2 O. 2. The continuous drying device according to claim 1, wherein the breathable cushioning material is a net-like body made of polyester or stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13513389U JPH035832Y2 (en) | 1989-11-21 | 1989-11-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13513389U JPH035832Y2 (en) | 1989-11-21 | 1989-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0281391U JPH0281391U (en) | 1990-06-22 |
| JPH035832Y2 true JPH035832Y2 (en) | 1991-02-14 |
Family
ID=31394488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13513389U Expired JPH035832Y2 (en) | 1989-11-21 | 1989-11-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH035832Y2 (en) |
-
1989
- 1989-11-21 JP JP13513389U patent/JPH035832Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0281391U (en) | 1990-06-22 |
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