JPS6117886A - Rotary kiln - Google Patents

Rotary kiln

Info

Publication number
JPS6117886A
JPS6117886A JP13776884A JP13776884A JPS6117886A JP S6117886 A JPS6117886 A JP S6117886A JP 13776884 A JP13776884 A JP 13776884A JP 13776884 A JP13776884 A JP 13776884A JP S6117886 A JPS6117886 A JP S6117886A
Authority
JP
Japan
Prior art keywords
rotary kiln
discharge
raw material
end wall
cylindrical body
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
Application number
JP13776884A
Other languages
Japanese (ja)
Inventor
健一 矢島
西脇 司郎
村上 慶吉
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Priority to JP13776884A priority Critical patent/JPS6117886A/en
Publication of JPS6117886A publication Critical patent/JPS6117886A/en
Pending 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〕 この発明は、バッチ式ロータリーキルンに関する。これ
は、従来構造のロータリーキルンにおいて課題とされて
いた原料の内部保持能力と排出能力の不足を解決しよう
とするもので、固体原料の予熱設備の分野で利用される
ものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a batch rotary kiln. This is an attempt to solve the problem of the conventional rotary kiln structure, which is the lack of internal retention capacity and discharge capacity for raw materials, and is used in the field of preheating equipment for solid raw materials.

〔従来技術〕[Prior art]

−a□に、この種口−タリーキルンとしては円筒傾斜型
のものが使用されているが、原料をロータリーキルンの
回転動作で以て、下流側即ち排出側へ移動ならしめる過
程において、原料の攪拌、外部供給熱源との熱交換及び
原料の排出等を全て行わせるもののため、必然的にロー
タリーキルンの機長そのものが長くなるうえ、処理済原
料の排出に要する時間も長くなる等の難があった。
-a□, a cylindrical inclined type kiln is used as the starter tarry kiln, and in the process of moving the raw material to the downstream side, that is, the discharge side, by the rotational movement of the rotary kiln, stirring of the raw material, Because the rotary kiln exchanges heat with an externally supplied heat source and discharges the raw materials, it inevitably requires a longer rotary kiln length, and it also takes longer to discharge the treated raw materials.

そのため、これらの課題を解決すべく、ロータリーキル
ンは適宜傾斜角度を変えることの出来る方式のものとし
、原料の攪拌及び外部供給熱源との熱交換時等にあって
は略水平状態で運転せしめ、処理済原料の排出時にあっ
ては、所定角傾斜状態で運転せしめることで、運転効率
の向上を計らんとする改良案も提案されている。しかし
ながら、上記ロータリーキルンを傾斜させる傾斜手段の
設置が不可欠であり、その機構も大損りなものとなるう
え、両端開口部に連設される排ガスダクトとの接点にお
いて、そのシール手段が極めて困難である等技術的にも
経済的にも難があった。
Therefore, in order to solve these problems, the rotary kiln is designed to be able to change its inclination angle as appropriate, and is operated in a nearly horizontal state when stirring the raw materials and exchanging heat with an external heat source. An improvement plan has also been proposed that aims to improve operating efficiency by operating the machine at a predetermined angle of inclination when discharging finished raw materials. However, it is essential to install a tilting means for tilting the rotary kiln, and the mechanism is also a major loss, and it is extremely difficult to seal the point of contact with the exhaust gas duct that is connected to the openings at both ends. There were technical and economic difficulties.

〔発明の目的〕[Purpose of the invention]

この発明は、これらの1問題を有利に解決するためのバ
ッチ弐ロータリーキルンに関するもので、筒状胴部ば原
料装入側より排出側で大なる円錐状に形成し、筒状胴部
の両端には略同径の開口を中央部に有する平板若しくは
円錐状の端壁を装着せしめた形状に構成し、さらに、排
出側端壁の外周近傍に導出孔を設け、該導出孔には曲管
状の中空排出通路を略円周方向に連設し、該排出通路の
先端は前記端壁の外部に開口するように成−したことに
より、前記導出孔から排出通路の先端方向への回転にて
原料の装入及び操業を、又、その逆方向への回転にて原
料の排出を行わしめることで、原料の内部保持能力、即
ら処理能力と排出能力に優れたロータリーキルンをIに
供することを目的とする。
This invention relates to a two-batch rotary kiln that advantageously solves one of these problems.The cylindrical body is formed into a larger cone shape on the discharge side than on the raw material charging side, and the cylindrical body is formed in a larger conical shape on the discharge side than on the raw material charging side. is configured with a flat plate or conical end wall having an opening of approximately the same diameter in the center, and is further provided with an outlet hole near the outer periphery of the end wall on the discharge side. The hollow discharge passages are arranged in a substantially circumferential direction, and the distal ends of the discharge passages are opened to the outside of the end wall, so that the raw material is removed by rotation from the outlet hole toward the distal end of the discharge passages. The purpose is to provide a rotary kiln with excellent internal retention capacity for raw materials, that is, excellent processing and discharge capabilities, by charging and operating the kiln, and discharging the raw materials by rotating in the opposite direction. shall be.

〔実施例〕〔Example〕

以下にこの発明を図示例をもとに説明する。 The present invention will be explained below based on illustrated examples.

図面はいずれもこの発明の基本概念を示すもので、第1
図及び第2図はロータリーキルンの操業時、即ち原料の
攪拌並びに外部供給熱源との熱交換時における状態を示
し、第3図は処理済原料排出時の状態を示す。
All the drawings show the basic concept of this invention, and the first drawing shows the basic concept of this invention.
2 and 2 show the state during operation of the rotary kiln, that is, during stirring of raw materials and heat exchange with an externally supplied heat source, and FIG. 3 shows the state during discharge of treated raw materials.

ロータリーキルン】の筒状胴部1aは原料の装入側より
排出側で大なる円錐状に形成され、鋼製側板の内面には
耐火材等によるライニングが施される。又、筒状胴部1
aの両端部には、中央部に略同径の開口を有する平板若
しくは円錐状の端壁1bが、前記筒状胴部1a同様、鋼
製側板の内面に耐火材等をライニングして1体的に装着
される。
The cylindrical body 1a of the rotary kiln is formed into a larger cone shape from the raw material charging side to the discharge side, and the inner surface of the steel side plate is lined with a refractory material or the like. Moreover, the cylindrical body part 1
At both ends of a, a flat plate or conical end wall 1b having an opening of approximately the same diameter in the center is formed into a single body by lining the inner surface of a steel side plate with a refractory material, etc., similar to the cylindrical body 1a. be installed.

尚、前記端壁1bは、筒状胴部1aの形状が特に大きな
円錐角で以て形成される場合、あるいは設備能力として
の1チャージ当りの処理量がさほど多くを要しない場合
等にあっては、前記筒状胴部1aで以て機能の代用が成
し得ることから、原料装入側に限ってその絶対的必要性
はなくなる。
The end wall 1b may be used when the cylindrical body 1a is formed with a particularly large cone angle, or when the processing capacity per one charge is not required to be very large. Since the cylindrical body 1a can serve as a substitute for the function, it is no longer absolutely necessary only on the raw material charging side.

2は前記筒状胴部1aに装着した複数列の環状タイヤで
あり、3は前記環状タイヤ2に対応して基台4に設置さ
れる支持ローラである。
2 is a plurality of rows of annular tires mounted on the cylindrical body portion 1a, and 3 is a support roller installed on the base 4 in correspondence with the annular tires 2.

尚、5は支持ローラ3用の駆動装置であり、これらの装
置構成によりロータリーキルン1は、その回転軸が略水
平になるよう据付られ、正・逆いずれの方向にも回転可
能となる。さらに、ロータリーキルン1を、前記回転操
作と併せ長手軸方向への往復動を行わせるため、公知ス
ライド手段(図示せず)を組合せ装置化し得ることも容
易である。
Reference numeral 5 designates a drive device for the support roller 3. Due to the configuration of these devices, the rotary kiln 1 is installed so that its axis of rotation is substantially horizontal, and can be rotated in either forward or reverse directions. Further, in order to cause the rotary kiln 1 to reciprocate in the longitudinal axis direction in addition to the rotation operation, it is easy to combine known sliding means (not shown) into a device.

原料の排出側の端壁1bには、原料を排出せしめる導出
口Aがその外周近傍に、具体的には筒状胴部1aのライ
ニングに導出孔Aが接する如く、内部の側板及びライニ
ングを貫通して穿孔される。
In the end wall 1b on the raw material discharge side, a discharge port A for discharging the raw material is provided near the outer periphery of the end wall 1b, specifically, through the inner side plate and lining so that the discharge hole A is in contact with the lining of the cylindrical body 1a. and perforated.

尚、導出孔Aの大きさは、穿孔数あるいは排出時間等所
謂ロータリーキルン1の設備仕様によって適宜法められ
るものである。
Incidentally, the size of the outlet hole A is determined as appropriate depending on the equipment specifications of the so-called rotary kiln 1, such as the number of perforations or discharge time.

6は処理済原料を排出するための排出通路であり、前記
端壁1bに設けられる導出孔Aに対応ならしめ、通常前
記端壁1bの側板とは離間して着脱自在に設けられる。
Reference numeral 6 denotes a discharge passage for discharging the processed raw material, which corresponds to the outlet hole A provided in the end wall 1b, and is usually detachably provided at a distance from the side plate of the end wall 1b.

尚、それら個々の排出通路6は、第2図に示すように、
円周方向に、前記導出孔Aに連設する個所を連設部Bと
し、その先端は前記端壁の外周に開口する個所を先端C
とする中空の曲管状に形成される。
Incidentally, these individual discharge passages 6 are as shown in FIG.
In the circumferential direction, a portion connected to the outlet hole A is referred to as a continuous portion B, and a portion opening to the outer periphery of the end wall is referred to as a tip C.
It is formed into a hollow curved tube shape.

尚、前記排出通路6の先端Cは上述の導出孔Aと同様に
原料の内部保持量あるいは穿孔数等所謂ロータリーキル
ン1の設備仕様によって決められるものである。
Incidentally, the tip C of the discharge passage 6 is determined by the equipment specifications of the so-called rotary kiln 1, such as the amount of raw material held inside or the number of holes, similarly to the above-mentioned outlet hole A.

又、排出通路6はロータリーキルンlの操業条件等によ
って、例えば内面に耐火材、耐摩耗材等のライニングが
施されるか、あるいは排出通路6そのものを消耗品扱い
とし、単に鋼製管路に構成される。
Further, depending on the operating conditions of the rotary kiln l, the discharge passage 6 may be lined with a refractory material, wear-resistant material, etc. on the inner surface, or the discharge passage 6 itself may be treated as a consumable item and may be simply constructed as a steel pipe. Ru.

7は、ロータリーキルン1の原料挿入側に設置される挿
入側フード、8は排出側フードであり、これらは前記筒
状胴部1aの両端部にてシール機構(図示せず)を介し
て装着される。又、9は原料をロータリーキルン1へ導
くための投入シュートである。
Reference numeral 7 denotes an insertion side hood installed on the raw material insertion side of the rotary kiln 1, and 8 denotes a discharge side hood, which are attached to both ends of the cylindrical body 1a via a sealing mechanism (not shown). Ru. Further, 9 is an input chute for guiding raw materials to the rotary kiln 1.

次いで、上記構成によるこの発明のロータリーキルンl
による操業について述べる。原料は、前記駆動装置5等
により、前記排出通路6の連設部B、即ち導出孔Aから
先端、即ち先端Cに向かう側へ連続回転されているロー
タリーキルン1の装入(iI!l端部へ投入シュート9
を介して投入される。
Next, the rotary kiln l of the present invention having the above configuration
This section describes the operation by The raw material is charged into the rotary kiln 1 (iI!l end Shoot 9
Input via.

尚、前記原料投入作業はロータリーキルン1の保持原料
の上層面が前記端壁1bに設けられた開口近傍に達する
まで続けられる。この間にも、原料は撹拌もされ、外部
供給熱源との熱交換も行われるが、本格的な処理は原料
投入を終えた後となる。このようにして、所期の処理目
標に達したならば、ロータリーキルン1の回転を停止し
、然る後、逆方向に回転ならしめ処理原料の排出作業に
移ることになる。
The raw material charging operation is continued until the upper surface of the raw material held in the rotary kiln 1 reaches the vicinity of the opening provided in the end wall 1b. During this time, the raw materials are also stirred and heat exchanged with an externally supplied heat source, but the full-scale processing begins after the raw materials have been input. In this way, when the desired treatment target is reached, the rotation of the rotary kiln 1 is stopped, and then the rotary kiln 1 is rotated in the opposite direction and the process is started for discharging the raw material to be treated.

ここで、注目すべきことは、上述のようにロータリーキ
ルン1の回転方向を原料の攪拌時及び熱交換時と排出時
とで逆転ならしめることであり、しかもその方向性にお
いて、前者の場合は前記排出通路6の連設部Bから先端
Cに向かう方向への回転をイづ与せしめ、他方後者の場
合は逆に前記排出通路6の先端Cから連設部Bに向かう
方向への回転を付与せしめる点にある。つまり、排出通
路6の連設部Bから先端Cに向かう方向への回転におい
ては、ロータリーキルン1内における保持原料の上層面
は概ね第2図に示すような状態で推移するが、排出通路
6の連設部Bが保持原料層に位置する範囲にあって、常
にその先端Cが上記保持原料の流出の恐れのない高位に
位置するため、排出通路6を原料が逆流するといった現
象を得る。
What should be noted here is that, as mentioned above, the rotation direction of the rotary kiln 1 is reversed during stirring and heat exchange of raw materials and during discharge, and in the former case, the direction of rotation of the rotary kiln 1 is reversed. Rotation is applied in the direction from the continuous portion B of the discharge passage 6 to the distal end C, while in the latter case, conversely, rotation is applied in the direction from the distal end C of the discharge passage 6 to the continuous portion B. The point is to encourage them. In other words, when the discharge passage 6 rotates in the direction from the continuous part B to the tip C, the upper surface of the retained raw material in the rotary kiln 1 generally changes as shown in FIG. Since the continuous portion B is located in the retained raw material layer and its tip C is always located at a high position where there is no risk of the retained raw material flowing out, a phenomenon in which the raw material flows backward through the discharge passage 6 is obtained.

又、排出通路6の先端Cから連設部Bに向かう方向への
回転においては、ロータリーキルン−1内における保持
原料の上層面は第3図に示すような状態で推移減少する
。即ち排出通路60連投部Bが保持原料層に位置する範
囲において、常にその先@C8即ぢ先端が上記保持原料
の上層面より下位に位置するため、排出通路6を介して
流出させ得る。尚、流出される原料は排出側フード8に
設けられた取出口より後工程設備へと供給される。
Further, in the rotation in the direction from the tip C of the discharge passage 6 toward the continuous part B, the upper surface of the retained raw material in the rotary kiln 1 gradually decreases in the state shown in FIG. 3. That is, in the range where the discharge passage 60 continuous feeding part B is located in the holding raw material layer, the tip @C8 or the tip thereof is always located below the upper layer surface of the holding raw material, so that it can be discharged through the discharge passage 6. The discharged raw material is supplied to post-process equipment through an outlet provided in the discharge side hood 8.

〔発明の効果〕〔Effect of the invention〕

この発明は上述の実施例か、ら判るように、ロータリー
キルンの筒状胴部を挿入側より排出側で大なる円錐状に
形成せしめ、該筒状胴部の両端には中央部に略同径の開
口を有する端壁を装着せしめた形状に構成し、さらに排
出側端壁の外側近傍に導出孔を設け、該導出孔には曲管
状の中空排出通路を略円周方向に連設し、該排出通路の
先端は前記端壁の外部に開口するように成したことで、
まず、ロータリーキルンの原料の内部保持能力、即ち処
理能力と排出能力を飛躍的に向上させ得るうえ、処理済
原料の排出作業も単にロータリーキルンの回転方向を逆
転ならしめるだけで、前記排出通路より短時間に全景排
出可能となる。
As can be seen from the above-described embodiments, in this invention, the cylindrical body of the rotary kiln is formed into a larger cone shape on the discharge side than on the insertion side, and both ends of the cylindrical body have approximately the same diameter at the center. The discharge hole is configured to have an end wall fitted with an opening, and further a lead-out hole is provided near the outside of the discharge-side end wall, and a hollow discharge passage in the shape of a curved pipe is connected to the lead-out hole in a substantially circumferential direction, The distal end of the discharge passage is configured to open to the outside of the end wall.
First, the raw material retention capacity of the rotary kiln, that is, the processing capacity and discharge capacity, can be dramatically improved, and the process of discharging the processed raw material can be done in a shorter time than in the discharge passageway by simply reversing the rotating direction of the rotary kiln. It becomes possible to emit a panoramic view.

そのうえ、設備構成の面においてもロータリキルンの機
長が従来のものに比し格段と短くなることに加え、排出
時にロータリーキルンの傾斜角度を大きくするための手
段が不要となり、しかも筒状同部両端開口部に連設され
る排ガスダクトとの間のシール手段も簡単である等、極
めてコンパクトなものと成し得る。
Furthermore, in terms of equipment configuration, the length of the rotary kiln is much shorter than that of conventional ones, and there is no need for a means to increase the angle of inclination of the rotary kiln during discharge. The sealing means between the exhaust gas duct and the exhaust gas duct connected to the section is simple, and the structure can be extremely compact.

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

図面は全てこの発明の実施態様の説明図であり、第1図
はロータリーキルンの原料処理時を示す概念図、第2図
及び第3図は排出側より見た側面図であり、第2図は原
料処理時における状態を示し、第3図は原料排出時にお
ける状態を示す。 1・−ロータリーキルン、2−・−環状タイヤ、6−排
出通路、7−挿入側フード、8−排出側フード特許出願
人 川崎重工業株式会社 第3図 第2図 回転古向
The drawings are all explanatory diagrams of embodiments of the present invention, and FIG. 1 is a conceptual diagram showing the rotary kiln during raw material processing, FIGS. 2 and 3 are side views as seen from the discharge side, and FIG. The state at the time of raw material processing is shown, and FIG. 3 shows the state at the time of raw material discharge. 1.-Rotary kiln, 2-.-Annular tire, 6-Discharge passage, 7-Insertion side hood, 8-Discharge side hood Patent applicant: Kawasaki Heavy Industries, Ltd.

Claims (2)

【特許請求の範囲】[Claims] (1)バッチ式ロータリーキルンにおいて、耐火材のラ
イニングを施した筒状胴部は、原料装入側より排出側で
大なる円錐状に形成され、該筒状胴部の両端には略同径
の開口を中央部に有する平板若しくは円錐状の端壁を装
着せしめ、排出側の端壁に導出孔を設けたことを特徴と
するロータリーキルン。
(1) In a batch type rotary kiln, the cylindrical body lined with refractory material is formed into a larger cone shape on the discharge side than on the raw material charging side, and both ends of the cylindrical body have approximately the same diameter. 1. A rotary kiln, characterized in that a flat plate or conical end wall having an opening in the center is attached, and an outlet hole is provided in the end wall on the discharge side.
(2)排出側端壁の外周近傍に1個若しくは複数個の導
出孔を設け、該導出孔には中空の曲管状排出通路を略円
周方向に連設し、該排出通路の先端は前記端壁の外部に
開口するように成したことを特徴とする特許請求の範囲
第1項記載のロータリーキルン。
(2) One or more outlet holes are provided near the outer periphery of the discharge side end wall, and a hollow curved tube-shaped discharge passage is connected to the outlet hole approximately in the circumferential direction, and the tip of the discharge passage is The rotary kiln according to claim 1, characterized in that the end wall is opened to the outside.
JP13776884A 1984-07-03 1984-07-03 Rotary kiln Pending JPS6117886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13776884A JPS6117886A (en) 1984-07-03 1984-07-03 Rotary kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13776884A JPS6117886A (en) 1984-07-03 1984-07-03 Rotary kiln

Publications (1)

Publication Number Publication Date
JPS6117886A true JPS6117886A (en) 1986-01-25

Family

ID=15206375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13776884A Pending JPS6117886A (en) 1984-07-03 1984-07-03 Rotary kiln

Country Status (1)

Country Link
JP (1) JPS6117886A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02272294A (en) * 1989-04-12 1990-11-07 Takasago Ind Co Ltd Rotary kiln
JPH06192740A (en) * 1992-12-28 1994-07-12 Kubota Corp Method for heat-treating thick walled cast steel pipe
JP2000234865A (en) * 1999-02-15 2000-08-29 Matsushita Environment Airconditioning Eng Co Ltd Rotary kiln device
JP2022026504A (en) * 2020-07-31 2022-02-10 ジグ・エンジニアリング株式会社 System for drawing out light specific gravity gas from industrial waste including at least one of waste plastics, woody materials, and animal and plant residues

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02272294A (en) * 1989-04-12 1990-11-07 Takasago Ind Co Ltd Rotary kiln
JPH06192740A (en) * 1992-12-28 1994-07-12 Kubota Corp Method for heat-treating thick walled cast steel pipe
JP2000234865A (en) * 1999-02-15 2000-08-29 Matsushita Environment Airconditioning Eng Co Ltd Rotary kiln device
JP2022026504A (en) * 2020-07-31 2022-02-10 ジグ・エンジニアリング株式会社 System for drawing out light specific gravity gas from industrial waste including at least one of waste plastics, woody materials, and animal and plant residues

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