JPS5850234Y2 - Lifting device for drying material in rotary dryer - Google Patents

Description

【考案の詳細な説明】 本考案は廃水の汚泥処理や各種工業の生産プロセスで使
用される回転乾燥機の引上部材に係るものである。[Detailed Description of the Invention] The present invention relates to a pulling member for a rotary dryer used in wastewater sludge treatment and various industrial production processes.

従来、乾燥肌の内周面に引上部材を設け、乾燥肌の回転
に伴って被乾燥物を上方に引上げて落下させたり、或い
は引上部材と併せて乾燥肌の中央部に攪拌部材を設けて
攪拌や破砕を行っているが、これらの回転乾燥機はほと
んど固定引上部材を設けており、被乾燥物の状態に見合
った乾燥処理に対する配慮はなされていなかった。Conventionally, a lifting member is provided on the inner circumferential surface of the dry skin, and as the dry skin rotates, the material to be dried is pulled up and dropped, or a stirring member is provided in the center of the dry skin in conjunction with the lifting member. However, most of these rotary dryers are equipped with a fixed pulling member, and no consideration has been given to the drying process commensurate with the condition of the material to be dried.

また、引上部材を回動するようにして引上部材を反転さ
せる技術は、実公昭４８−２５２７４号などで開示され
ているが、引上げ途中において被乾燥物の大塊などが落
下してしまい、これら引上損失に対しては何ら対策が施
されていないのが現状である。In addition, a technique for reversing the pulling member by rotating it is disclosed in Japanese Utility Model Publication No. 48-25274, etc., but large chunks of the material to be dried may fall during the pulling. Currently, no measures have been taken to deal with these pulling losses.

上記の点に鑑み、本考案は多種多様の被乾燥物の状態に
最も適した落下位置を容易に設定でき、引上げ途中にお
ける落下損失を被乾燥物の塊の大小に関係なくほとんど
無くシ、かつ引上部材が回動し更に衝撃を与えられるこ
とにより被乾燥物を攪拌部材上に一度に落下させて攪拌
及び破砕を行うので乾燥効率の著しい向上が計れるもの
である。In view of the above points, the present invention makes it possible to easily set the most suitable dropping position for a wide variety of conditions of the material to be dried, almost eliminates drop loss during lifting, regardless of the size of the mass of the material to be dried, and As the pulling member rotates and is further impacted, the material to be dried falls onto the stirring member at once and is stirred and crushed, resulting in a significant improvement in drying efficiency.

次に本考案に係る一実施例を図面にて詳述すると、図中
１は乾燥肌、２は乾燥肌１内へ熱風を供給する熱風入口
、３は乾燥肌１へ被乾燥物を送り込む供給口、４は固定
引上部材４′に枢着されて乾燥肌１の長手方向の軸を中
心として回動自在な可動引上部材であり、５は固定引上
部材４′の引上面に設けられた可動引上部材４の係止部
材である。Next, an embodiment of the present invention will be described in detail with reference to the drawings. In the figure, 1 indicates dry skin, 2 indicates a hot air inlet for supplying hot air into the dry skin 1, and 3 indicates a supply supply for supplying dry matter to the dry skin 1. A movable lifting member 4 is pivotally connected to the fixed lifting member 4' and is rotatable about the axis in the longitudinal direction of the dry skin 1, and 5 is a movable lifting member provided on the lifting surface of the fixed lifting member 4'. This is a locking member for the movable lifting member 4 that has been moved.

６は係止腕で、固定引上部材４′に隣接する固定腕７に
設けた長孔９に摺動可能に支持部材８で止着され、乾燥
肌１の長手方向の軸を中心として回動自在にしてあり、
支持部材８は乾燥肌１の半径方向に移動可能にしである
。Reference numeral 6 denotes a locking arm, which is slidably secured to a long hole 9 provided in a fixed arm 7 adjacent to the fixed pulling member 4' by a support member 8, and is rotated around the longitudinal axis of the dry skin 1. It is movable,
The support member 8 is movable in the radial direction of the dry skin 1.

乾燥肌１内には攪拌翼１１を附設した攪拌軸１０を横架
し、熱風のショートパスを防ぐ拡散板１２と供給される
被乾燥物の予備破砕を行う破砕翼１３を同軸上に附設し
た回転翼が熱風人口２と被乾燥物供給口３の直前を通過
するように攪拌軸１０に設けである。A stirring shaft 10 equipped with stirring blades 11 is placed horizontally in the dry skin 1, and a diffusion plate 12 for preventing short paths of hot air and a crushing blade 13 for preliminary crushing of the supplied material to be dried are attached on the same axis. The rotary blade is installed on the stirring shaft 10 so as to pass just in front of the hot air outlet 2 and the drying material supply port 3.

尚、図中符号１４は被乾燥物の入口部分にのみ設けた固
定引上部材である。In addition, the reference numeral 14 in the figure is a fixed pulling member provided only at the inlet of the material to be dried.

本考案の一実施例は以上のように構成されているので、
供給口３より乾燥肌１内へ送り込まれた被乾燥物は乾燥
肌１の回転に伴い、可動引上部材４によって最も攪拌効
果の大きい位置から一度に落下させることが可能となる
。Since one embodiment of the present invention is configured as described above,
The material to be dried fed into the dry skin 1 through the supply port 3 can be dropped all at once by the movable lifting member 4 from the position where the stirring effect is greatest as the dry skin 1 rotates.

以下、順に追って可動引上部材４の作用を説明すると、
第１図において符号ので示すように、先ず可動引上部材
４は係止部材５で引上面側を支持され、次に乾燥肌１の
回転に伴い、自重により垂下状態にある係止腕６により
、符号■で示す状態に引上面の裏側が押圧され、係止部
材５と係止腕６とによってロックされる。Below, the action of the movable lifting member 4 will be explained in order.
As shown by the symbol in FIG. 1, the movable lifting member 4 is first supported on the lifting surface side by a locking member 5, and then is supported by a locking arm 6 which is in a hanging state due to its own weight as the dry skin 1 rotates. , the back side of the lifting surface is pressed to the state shown by the symbol ■, and is locked by the locking member 5 and the locking arm 6.

これより被乾燥物の引上げが始まり、さらに乾燥側１が
回転するに従い符号■、■で示すように作動して、この
間可動引上部材４と固定引上部材４′のなす角度が直角
に近い鈍角であるために被乾燥物の引上損失はほとんど
無い。This starts the lifting of the material to be dried, and as the drying side 1 further rotates, it operates as shown by symbols ■ and ■, and during this time the angle formed by the movable lifting member 4 and the fixed lifting member 4' is close to a right angle. Because of the obtuse angle, there is almost no pulling loss of the material to be dried.

また、符号■の状態において係止腕６は直立状態にあり
、そして符号■の状態では、係止腕６は支持部材８を通
る垂線より係止腕６の重心が乾燥側１の回転方向矢示Ａ
側に移動するため、係止腕６は可動引上部材４から外れ
て垂下し、それと同時に係止を失った可動引上部材４も
回動して垂下し、引上げた被乾燥物を攪拌翼１１の上に
確実に落下せしめると共に、自らは係止腕６に衝突して
止まり、そのときの衝撃により可動引上部材４が回動し
ただけでは落下せずに耐着している被乾燥物をも悉く落
下せしめることができる。In addition, in the state indicated by the symbol ■, the locking arm 6 is in an upright state, and in the state indicated by the symbol Showing A
As it moves to the side, the locking arm 6 disengages from the movable lifting member 4 and hangs down, and at the same time, the movable lifting member 4, which has lost its lock, also rotates and hangs down, and the pulled up drying material is passed through the stirring blades. 11, the object to be dried collides with the locking arm 6 and stops, and does not fall even if the movable lifting member 4 rotates due to the impact at that time. It is possible to make the whole thing fall.

次に落下位置の設定の仕方について説明すると第５図に
おいて係止腕６と固定腕７とのなす鋭角をθとすれば、
角ＹＯＢがθと等しくなり、θの大きさにより落下位置
が決定されることになる。Next, to explain how to set the drop position, if the acute angle between the locking arm 6 and the fixed arm 7 in FIG. 5 is θ, then
The angle YOB is equal to θ, and the falling position is determined by the magnitude of θ.

従ってθが最小のとき、つまり係止腕６の支持部材８が
乾燥側１の最も中心側に位置するときに落下位置は最も
高くなり、逆にθが最大のとき、つまり係止腕６の支持
部材８が乾燥側１の最も周面側に位置するときに落下位
置は最も低くなるので支持部材８の取付位置を変えるこ
とにより、落下位置を任意に設定することができるので
ある。Therefore, when θ is minimum, that is, when the support member 8 of the locking arm 6 is located closest to the center of the drying side 1, the falling position is highest, and conversely, when θ is maximum, that is, when the support member 8 of the locking arm 6 When the supporting member 8 is located closest to the peripheral surface of the drying side 1, the falling position is the lowest, so by changing the mounting position of the supporting member 8, the falling position can be set arbitrarily.

尚被乾燥物の落下位置を調節するに当って、第６図に示
すように係止脚６に段孔を設けてもよい。Incidentally, in order to adjust the falling position of the object to be dried, a step hole may be provided in the locking leg 6 as shown in FIG.

以上説明したように、本考案は被乾燥物の夫々の状態に
適した落下位置の設定が容易にでき、これにより無駄の
ない攪拌を行わしめ、熱風との接触面積も大きくなり、
すぐれた乾燥効率が得られるものであり、従来のこの種
回転乾燥機に比較して著しい利点を有するものである。As explained above, with the present invention, it is possible to easily set the dropping position suitable for each condition of the material to be dried, thereby achieving efficient stirring, and increasing the contact area with hot air.
It provides excellent drying efficiency and has a significant advantage over conventional rotary dryers of this type.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本考案に係る一実施例を示すものであり第１図は
その横断面図、第２図は一部を切欠いた縦断面図、第３
図は第１図の要部の拡大図、第４図は第３図の正面図、
第５図は可動引上部材の落下機構説明図、第６図は係止
腕の他の実施例の平面図である。 符号説明 １・・・・・・乾燥側、４・・・・・・可動
引上部材、６・・・・・・係止腕、８・・・・・・支持
部材。The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view thereof, FIG. 2 is a longitudinal sectional view with a part cut away, and FIG.
The figure is an enlarged view of the main part of Figure 1, Figure 4 is a front view of Figure 3,
FIG. 5 is an explanatory diagram of the falling mechanism of the movable lifting member, and FIG. 6 is a plan view of another embodiment of the locking arm. Explanation of symbols 1... Drying side, 4... Movable lifting member, 6... Locking arm, 8... Supporting member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 乾燥胴内に攪拌翼を附設した攪拌軸を横架させた回転乾
燥機において、乾燥肌１の内周面に該乾燥肌１の長手方
向の軸を中心として夫々回動自在な可動引上部材４及び
該可動引上部材４の係止腕６を多数設け、該可動引上部
材４が自然回動して引上げた被乾燥物を落下させる位置
を調節可能としたことを特徴とする回転乾燥機。In a rotary dryer in which a stirring shaft with stirring blades attached to the drying drum is mounted horizontally, movable pulling members are provided on the inner circumferential surface of the dry skin 1 and are rotatable about the axis in the longitudinal direction of the dry skin 1. 4 and a plurality of locking arms 6 of the movable lifting member 4, so that the position at which the movable lifting member 4 naturally rotates and drops the pulled object to be dried can be adjusted. Machine.