JP2763252B2 - Kneading extruder for ash solidification - Google Patents
Kneading extruder for ash solidificationInfo
- Publication number
- JP2763252B2 JP2763252B2 JP16827293A JP16827293A JP2763252B2 JP 2763252 B2 JP2763252 B2 JP 2763252B2 JP 16827293 A JP16827293 A JP 16827293A JP 16827293 A JP16827293 A JP 16827293A JP 2763252 B2 JP2763252 B2 JP 2763252B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- kneading
- face plate
- extruding
- die face
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/248—Means preventing the material from turning with the screw or returning towards the feed hopper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ごみ焼却炉から排出さ
れる焼却灰をセメント固化処理して無害化を図る灰固化
処理用混練押出装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kneading and extruding apparatus for ash solidification treatment for making incineration ash discharged from a refuse incinerator solidified by cement solidification.
【０００２】[0002]
【従来の技術】平成５年４月以降に設置される焼却量が
５ｔ／日以上のごみ焼却設備から排出される飛灰（焼却
灰）は、無害化処理方法により無害化処理することが定
められている。2. Description of the Related Art Fly ash (incinerated ash) discharged from refuse incineration facilities with an incineration rate of 5 t / day or more installed after April 1993 must be detoxified by a detoxification method. Have been.
【０００３】この無害化処理方法には、たとえば飛灰に
セメントを混入して固化処理するセメント固化処理法が
あり、このセメント固化処理法に使用される混練押出装
置としては、たとえば図３に示すものがある。この混練
押出装置は、駆動モーター１に回転駆動される左右一対
の回転軸２が繭形断面のケーシング３内に回転自在に支
持されており、このケーシング３の一端側に、飛灰およ
びセメントを投入する原料投入口４が形成されるととも
に、この原料投入口４に対応して押込用スクリュー５が
回転軸２にそれぞれ設けられている。そして、押込用ス
クリュー５の他端側に複数の混練用パドル６が回転軸２
に取り付けられるとともに、ケーシング３に加湿水およ
び薬剤を供給する加湿水供給孔７が形成されている。ケ
ーシング３内の一端側には、回転軸２に外嵌固定された
スクリュー軸８ａと、スクリュー軸８ａの外周部に螺旋
状に固定されたスクリュー羽根８ｂからなる押出用スク
リュー８が配置され、ケーシング３の他端面には、押出
孔９が形成されたダイス面板１０が取り付けられてい
る。As this detoxification treatment method, there is, for example, a cement solidification treatment method in which cement is mixed with fly ash and solidification treatment is performed. A kneading and extruding apparatus used in the cement solidification treatment method is shown in FIG. 3, for example. There is something. In this kneading and extruding apparatus, a pair of left and right rotating shafts 2 driven to rotate by a drive motor 1 are rotatably supported in a casing 3 having a cocoon-shaped cross section. A raw material inlet 4 to be charged is formed, and a pushing screw 5 is provided on the rotating shaft 2 corresponding to the raw material inlet 4. A plurality of kneading paddles 6 are provided on the other end of the pushing screw 5 on the rotating shaft 2.
And a humidification water supply hole 7 for supplying humidification water and a medicine to the casing 3. On one end side in the casing 3, an extrusion screw 8 composed of a screw shaft 8a externally fixed to the rotating shaft 2 and a screw blade 8b spirally fixed to the outer peripheral portion of the screw shaft 8a is arranged. A die face plate 10 in which an extrusion hole 9 is formed is attached to the other end face of 3.
【０００４】上記構成において、飛灰とセメントとが所
定の割合で原料投入口４からケーシング３内に投入さ
れ、駆動モーター１により回転軸２を介して回転される
押込用スクリュー５により飛灰とセメントとをが練用パ
ドル６側に送り出される。そして加湿水供給孔７から加
湿水と薬液とが供給されて、混練用パドル６により飛灰
とセメントとが混練され、押出スクリュー８側に送り出
される。さらに、混練物が押出用スクリュー８によりダ
イス面板１０側に移送されて押出孔９から押し出され
る。In the above construction, fly ash and cement are charged into the casing 3 from the raw material inlet 4 at a predetermined ratio, and the fly ash and cement are pushed by the pushing screw 5 rotated by the drive motor 1 via the rotary shaft 2. The cement is sent to the paddle 6 side. Then, the humidifying water and the chemical solution are supplied from the humidifying water supply hole 7, the fly ash and the cement are kneaded by the kneading paddle 6, and sent out to the extrusion screw 8 side. Further, the kneaded material is transferred to the die face plate 10 side by the extrusion screw 8 and extruded from the extrusion hole 9.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記構成にお
いて、押出スクリュー８の出口端部は、回転軸２の端部
にはスクリュー軸８ａの固定具２ａが取り付けられてい
るため、回転軸２の端面に対してスクリュー羽根８ｂの
出口端面が少し後退した位置にあり、回転軸２の端面が
ダイス面板１０に接近して配置されることから、スクリ
ュー羽根８ｂの出口端面とダイス面板１０の間には隙間
Ｌがある。そうすると、この隙間Ｌに混練物が滞留して
ダイス面板１０の内面に付着され、固化されてダイス面
板１０の内面に固化膜が形成される。この固化膜によ
り、（１）押出孔の目詰まりが生じやすい。（２）付着
した固化膜により、ダイス面板１０のメンテナンスが困
難となる。（３）摩擦熱のため装置が高温となる。
（４）動力消費が大きい。などの問題があった。However, in the above construction, since the fixing end 2a of the screw shaft 8a is attached to the end of the extruding screw 8 at the end of the rotating shaft 2, Since the exit end face of the screw blade 8b is located at a position slightly retreated with respect to the end face, and the end face of the rotating shaft 2 is disposed close to the die face plate 10, the exit end face of the screw blade 8b and the die face plate 10 are disposed. Has a gap L. Then, the kneaded material stays in the gap L and adheres to the inner surface of the die face plate 10 and is solidified to form a solidified film on the inner surface of the die face plate 10. Due to this solidified film, (1) clogging of the extrusion hole is likely to occur. (2) The adhered solidified film makes maintenance of the die face plate 10 difficult. (3) The temperature of the device becomes high due to frictional heat.
(4) Large power consumption. There was such a problem.
【０００６】本発明は、上記問題点を解決できる灰固化
処理用混練押出装置を提供することを目的とする。[0006] It is an object of the present invention to provide a kneading and extruding apparatus for ash solidification which can solve the above problems.
【０００７】[0007]
【課題を解決するための手段】上記問題点を解決するた
めに本発明の灰固化処理用混練押出装置は、一端側に原
料投入口が形成されるとともに他端側に押出口が形成さ
れたケーシング内に、回転軸に回転駆動される混練用パ
ドルと押出用スクリューが配置された灰固化処理用混練
押出装置において、押出用スクリューのスクリュー羽根
の出口側端部に、先端部が押出孔が形成されたダイス面
板内面に近接または摺接する第１スクレーパーを設けた
ものである。In order to solve the above problems, a kneading and extruding apparatus for ash solidification according to the present invention has a raw material charging port formed at one end and an extruding port formed at the other end. In a kneading and extruding device for ash solidification in which a kneading paddle and an extruding screw that are rotationally driven on a rotating shaft are arranged in a casing, an extruding hole is formed at an end of a screw blade of the extruding screw at an exit side of a screw blade. A first scraper is provided which comes close to or in sliding contact with the inner surface of the formed die face plate.
【０００８】また上記構成に加えて、回転軸の端部に、
先端部がダイス面板内面に近接または摺接する第２スク
レーパーを設けたものである。[0008] In addition to the above configuration, at the end of the rotating shaft,
A second scraper is provided in which a tip portion approaches or slides in contact with the inner surface of the die face plate.
【０００９】[0009]
【作用】上記構成において、混練用パドルにより攪拌混
練され押出用スクリューにより押出口から押し出され
る。この時、押出用スクリューとダイス面板との間に混
練物が滞留しようとしても、第１スクレーパーおよび第
２スクレーパーにより掻き取って付着を防止することが
できるので、ダイス面板の内面に固化膜が形成されるの
を未然に防止することができる。したがって、押出孔の
目詰まりが生じることもなく、またダイス面板のメンテ
ナンスも容易に行え、さらに摩擦熱も発生せず、摩擦に
よる動力の増加も発生することがない。In the above construction, the mixture is stirred and kneaded by a kneading paddle and extruded from an extrusion port by an extrusion screw. At this time, even if the kneaded material attempts to stay between the extrusion screw and the die face plate, the first scraper and the second scraper can scrape and prevent adhesion, so that a solidified film is formed on the inner surface of the die face plate. Can be prevented from occurring. Therefore, clogging of the extrusion hole does not occur, maintenance of the die face plate can be easily performed, no frictional heat is generated, and no increase in power due to friction is generated.
【００１０】[0010]
【実施例】以下、本発明に係る灰固化処理用混練押出装
置の一実施例を図１および図２に基づいて説明する。な
お、従来と同一の部材は同一符号を付し、説明は省略す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a kneading and extruding apparatus for ash solidification according to the present invention will be described below with reference to FIGS. The same members as those in the related art are denoted by the same reference numerals, and description thereof will be omitted.
【００１１】１１は押出用スクリュー８のスクリュー羽
根８ｂの出口側端部に設けられた第１スクレーパーで、
先端部がダイス面板１０内面に極めて近接されている。
この第１スクレーパー１１は、スクリュー羽根８ｂの半
径方向全長にわたって形成されるとともに、回転方向前
方の掻き寄せ面１１ａが回転中心側ほど回転方向後方に
傾斜されて、ダイス面板１０内面に付着した混練物をス
クリュー軸８ａの外周面側に寄せ集めて流動性を高める
ように構成されている。Reference numeral 11 denotes a first scraper provided at the outlet end of the screw blade 8b of the extrusion screw 8.
The tip is very close to the inner surface of the die face plate 10.
The first scraper 11 is formed over the entire length of the screw blade 8b in the radial direction, and the scraping surface 11a at the front in the rotation direction is inclined rearward in the rotation direction toward the center of rotation, so that the kneaded material adhered to the inner surface of the die face plate 10. Are gathered on the outer peripheral surface side of the screw shaft 8a to enhance the fluidity.
【００１２】１２は回転軸２の端部の固定具２ａの外端
面に取り付けられた第２スクレーパーで、先端部がダイ
ス面板１０内面に極めて近接されている。この第２スク
レーパー１２は、固定具２ａの回転中心から外周部に外
端面の半径方向全長にわたって形成されるとともに、回
転外周側ほど回転方向後方に傾斜されており、回転方向
前方の掻き寄せ面１２ａにより、ダイス面板１０内面に
付着した混練物をスクリュー軸８ａの外周面側に寄せ集
めて流動性を高めるように構成されている。Reference numeral 12 denotes a second scraper attached to the outer end face of the fixture 2a at the end of the rotating shaft 2, and the tip end is extremely close to the inner surface of the die face plate 10. The second scraper 12 is formed from the center of rotation of the fixture 2a to the outer peripheral portion over the entire length of the outer end surface in the radial direction, and is inclined rearward in the rotational direction toward the outer peripheral side of rotation. As a result, the kneaded material adhering to the inner surface of the die face plate 10 is gathered to the outer peripheral surface side of the screw shaft 8a to enhance the fluidity.
【００１３】なお、これら第１スクレーパー１１および
第２スクレーパー１２の先端をダイス面板１０内面に摺
接させてもよい。上記構成によれば、混練用パドル６に
より攪拌混練されて押出用スクリューに押し出される混
練物が、押出用スクリュー８とダイス面板１０との間に
滞留してダイス面板１０の内面に付着することがあって
も、回転軸２の回転とともに回転する第１スクレーパー
１１および第２スクレーパー１２により掻き落とされ
て、流動性の高いスクリュー軸８ａの外周面側に寄せ集
められるので、すぐに他の混練物に混合される。したが
って、押出孔９に目詰まりが生じることもなく、固化膜
が生じないのでダイス面板１０のメンテナンスも容易に
行え、さらに摩擦熱も発生せず、摩擦により動力が増加
することもない。The ends of the first and second scrapers 11 and 12 may be brought into sliding contact with the inner surface of the die face plate 10. According to the above configuration, the kneaded material stirred and kneaded by the kneading paddle 6 and extruded to the extrusion screw may stay between the extrusion screw 8 and the die face plate 10 and adhere to the inner surface of the die face plate 10. Even if it is, it is scraped off by the first scraper 11 and the second scraper 12 rotating together with the rotation of the rotating shaft 2 and is collected on the outer peripheral surface side of the screw shaft 8a having high fluidity, so that other kneaded materials are immediately obtained. Is mixed. Therefore, the extrusion holes 9 are not clogged, and a solidified film is not formed, so that the maintenance of the die face plate 10 can be easily performed. Further, no frictional heat is generated, and power does not increase due to friction.
【００１４】また、従来では押出孔９から押し出される
混練物は、所定の長さにまで押し出されると、自重によ
り折れ曲がって切断されていたが、上記実施例では第１
スクレーパー１１が押出孔９の入口面を通過する毎に混
練物が一定長さで切断され、押出成形物が均一な長さと
なってその取扱が容易となる。Conventionally, when the kneaded material extruded from the extrusion hole 9 is extruded to a predetermined length, it is bent and cut by its own weight.
Each time the scraper 11 passes through the entrance surface of the extrusion hole 9, the kneaded material is cut into a fixed length, so that the extruded product has a uniform length and is easy to handle.
【００１５】なお、上記構成において第１スクレーパー
１１に代えて、スクリュー羽根８ｂの端部をダイス面板
１０の内面近傍にまで延長することも考えられるが、ス
クリュー羽根８ｂの端部を単に延長するだけでは、混練
物の効果的な掻き取りや流動性の高いスクリュー軸８ａ
外周面側への寄せ集めの能力も低く、またスムーズな混
練物の押出とカッティングも難しく、第１スクレーパー
１１の能力にはおよばない。In the above configuration, instead of the first scraper 11, the end of the screw blade 8b may be extended to the vicinity of the inner surface of the die face plate 10, but the end of the screw blade 8b is simply extended. Then, the effective scraping of the kneaded material and the highly fluid screw shaft 8a
The ability of gathering to the outer peripheral surface side is low, and it is difficult to smoothly extrude and cut the kneaded material, and the ability of the first scraper 11 is inferior.
【００１６】[0016]
【発明の効果】以上に述べたごとく本発明の灰固化処理
用混練押出装置によれば、混練用パドルで攪拌混練され
た混練物が押出用スクリューにより押出口から押し出さ
れる時に、押出用スクリューとダイス面板との間に混練
物が滞留し付着しようとしても、第１スクレーパーまた
は第１スクレーパーと第２スクレーパーにより掻き取っ
てダイス面板の内面に固化膜が形成されるのを未然に防
止することができる。したがって、（１）押出孔の目詰
まりが生じない。（２）ダイス面板のメンテナンスが容
易に行える。（３）摩擦熱が発生しない。（４）動力消
費の増加を抑制できる。という効果を奏することができ
る。As described above, according to the kneading and extruding apparatus for the ash solidification treatment of the present invention, when the kneaded material stirred and kneaded by the kneading paddle is extruded from the extruding port by the extruding screw, the extruding screw is connected to the extruding screw. Even if the kneaded material stays between and adheres to the die face plate, it is possible to prevent the first scraper or the first scraper and the second scraper from scraping and forming a solidified film on the inner surface of the die face plate. it can. Therefore, (1) clogging of the extrusion hole does not occur. (2) The die face plate can be easily maintained. (3) No frictional heat is generated. (4) An increase in power consumption can be suppressed. The effect described above can be achieved.
【図１】本発明に係る灰固化処理用混練押出装置の一実
施例を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing one embodiment of a kneading and extruding apparatus for ash solidification according to the present invention.
【図２】図１に示すＩ−Ｉ断面図である。FIG. 2 is a sectional view taken along the line II shown in FIG.
【図３】従来の灰固化処理用混練押出装置を示す縦断面
図である。FIG. 3 is a longitudinal sectional view showing a conventional kneading and extruding apparatus for ash solidification treatment.
１ 駆動モーター ２ 回転軸 ３ ケーシング ４ 原料投入口 ５ 押込用スクリュー ６ 混練用パドル ７ 加湿水供給孔 ８ 押出用スクリュー ８ａ スクリュー軸 ８ｂ スクリュ羽根 ９ 押出孔 10 ダイス面板 11 第１スクレーパー 11ａ 掻き寄せ面 12 第２スクレーパー 12ａ 掻き寄せ面 DESCRIPTION OF SYMBOLS 1 Drive motor 2 Rotating shaft 3 Casing 4 Raw material input port 5 Push-in screw 6 Kneading paddle 7 Humidification water supply hole 8 Extrusion screw 8a Screw shaft 8b Screw blade 9 Extrusion hole 10 Die face plate 11 First scraper 11a Scraping surface 12 2nd scraper 12a Scraping surface
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実公 昭39−22174（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.6，ＤＢ名) B30B 11/24 B30B 3/00 B30B 9/28──────────────────────────────────────────────────続 き Continuation of the front page (56) Reference Jikken 39-22174 (JP, Y1) (58) Fields investigated (Int. Cl. 6 , DB name) B30B 11/24 B30B 3/00 B30B 9 / 28
Claims (2)
に他端側に押出口が形成されたケーシング内に、一端側
から他端側にわたって配置された回転軸に回転駆動され
る混練用パドルと押出用スクリューとを設けた灰固化処
理用混練押出装置において、押出用スクリューのスクリ
ュー羽根の出口側端部に、押出孔が形成されたダイス面
板内面に先端部が近接または摺接する第１スクレーパー
を設けたことを特徴とする灰固化処理用混練押出装置。A kneading paddle rotatably driven by a rotating shaft disposed from one end to the other end in a casing having a raw material inlet at one end and an extrusion opening at the other end. A kneading and extruding device for ash hardening treatment provided with an extruding screw and a first scraper whose tip is close to or slidably in contact with the inner surface of a die face plate having an extruded hole at the exit side end of the screw blade of the extruding screw. A kneading and extruding apparatus for ash solidification treatment, comprising:
面に近接または摺接する第２スクレーパーを設けたこと
を特徴とする請求項１記載の灰固化処理用混練押出装
置。2. The kneading and extruding apparatus for ash solidification according to claim 1, wherein a second scraper is provided at the end of the rotating shaft, the tip of which is close to or in sliding contact with the inner surface of the die face plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16827293A JP2763252B2 (en) | 1993-07-08 | 1993-07-08 | Kneading extruder for ash solidification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16827293A JP2763252B2 (en) | 1993-07-08 | 1993-07-08 | Kneading extruder for ash solidification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0724599A JPH0724599A (en) | 1995-01-27 |
| JP2763252B2 true JP2763252B2 (en) | 1998-06-11 |
Family
ID=15864947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16827293A Expired - Fee Related JP2763252B2 (en) | 1993-07-08 | 1993-07-08 | Kneading extruder for ash solidification |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2763252B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007029957A (en) * | 2005-07-22 | 2007-02-08 | Sumiyoshi Heavy Ind Co Ltd | Press-forming device of construction sludge or the like |
| KR20230059404A (en) | 2021-10-26 | 2023-05-03 | 고려대학교 산학협력단 | Novel Peptides from Platelet Derived Growth Factor and uses thereof |
| KR20240072367A (en) | 2022-11-15 | 2024-05-24 | 고려대학교 산학협력단 | Novel Peptides from Platelet Derived Growth Factor and uses thereof |
-
1993
- 1993-07-08 JP JP16827293A patent/JP2763252B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724599A (en) | 1995-01-27 |
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| LAPS | Cancellation because of no payment of annual fees |