JP2007040615A - Rotary kiln - Google Patents

Rotary kiln Download PDF

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Publication number
JP2007040615A
JP2007040615A JP2005225619A JP2005225619A JP2007040615A JP 2007040615 A JP2007040615 A JP 2007040615A JP 2005225619 A JP2005225619 A JP 2005225619A JP 2005225619 A JP2005225619 A JP 2005225619A JP 2007040615 A JP2007040615 A JP 2007040615A
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Prior art keywords
dam
rotary kiln
lifter
activated carbon
metal
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JP2005225619A
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Japanese (ja)
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Asaki Hoju
朝喜 寶住
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Mitsubishi Chemical Corp
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Mitsubishi Chemical Corp
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Priority to JP2005225619A priority Critical patent/JP2007040615A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary kiln capable of manufacturing activated carbon with favorable quality. <P>SOLUTION: In the rotary kiln, refractory bricks are laid around an inner circumference of a cylindrical steel shell composing a shell body of an outer circumference. Anchor hardware for lifter attachment is provided protruding from the steel shell, and a lifter 5 is attached to the anchor hardware. A dam 6 is supported by the lifter via a support fitting 10. Dam plates 7, 8 made of metal composing the dam are alternately arranged in a circumferential direction. Each dam plate 7 is directly supported by the lifter 5 by the support fitting 10. The dam plate 8 is attached to the dam plate 8 via a coupler 9. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明はロータリキルンに係り、特に活性炭の乾燥又は炭化に用いるのに好適なロータリキルンに関する。   The present invention relates to a rotary kiln, and more particularly to a rotary kiln suitable for use in drying or carbonizing activated carbon.

粒状活性炭の製造方法には、原料の種類等に応じて種々の方法が行われている。例えば、石炭を原料として粒状活性炭を製造する方法として、原料石炭をインペラブレーカ等で粗砕した後、リングローラーミル等で微粉砕し、これを圧密して顆粒状とし、その後、乾燥、炭化及び賦活することにより活性炭とする方法がある。   Various methods are used to produce granular activated carbon depending on the type of raw material. For example, as a method for producing granular activated carbon using coal as a raw material, the raw material coal is coarsely crushed with an impeller breaker or the like, then finely pulverized with a ring roller mill or the like, and then compressed into granules, and then dried, carbonized and There is a method of making activated carbon by activation.

活性炭の製造工程において、ロータリキルンを用いることがある(例えば特開平6−144816号)。
特開平6−144816号
A rotary kiln may be used in the manufacturing process of activated carbon (for example, JP-A-6-144816).
JP-A-6-144816

活性炭製造用ロータリキルン内には、被処理物たる製造途中の活性炭をロータリキルンの内周面に沿って掻き上げるためのリフターと、活性炭が短絡的にロータリキルン内を流れることを防止するためのダムとが設けられている。上記のリフターは金属製の羽根状のものである。ダムは堤防状のものであり、ロータリキルンの内周面を周回して設けられている。   In the rotary kiln for activated carbon production, there is a lifter for scraping the activated carbon that is being processed, along the inner circumferential surface of the rotary kiln, and for preventing the activated carbon from flowing in the rotary kiln in a short circuit. There is a dam. The lifter described above is a metal blade. The dam has a bank-like shape and is provided around the inner peripheral surface of the rotary kiln.

従来、このダムは耐火物によって構成されているが、耐火物の破片が製品活性炭に混入することがあった。   Conventionally, this dam is made of a refractory, but refractory fragments may be mixed into the product activated carbon.

本発明は、かかる問題点を解消し、品質の良好な活性炭を製造することができるロータリキルンを提供することを目的とする。   An object of this invention is to provide the rotary kiln which eliminates this problem and can manufacture activated carbon with favorable quality.

本発明のロータリキルンは、内周面から突出するダムが周設されているロータリキルンにおいて、該ダムを金属製としたことを特徴とするものである。   The rotary kiln according to the present invention is characterized in that the dam is made of metal in the rotary kiln in which a dam protruding from the inner peripheral surface is provided.

この金属製のダムは、リフターに支持されることが好ましい。   This metal dam is preferably supported by a lifter.

本発明のロータリキルンにあっては、ダムを金属製としているので、ダムの耐火物破片が製品活性炭に混入することが防止される。   In the rotary kiln of the present invention, since the dam is made of metal, it is possible to prevent the refractory fragments of the dam from being mixed into the activated carbon of the product.

金属製ダムをリフターに支持させるようにした場合には、既存のロータリキルンにあっても容易に本発明構造のものに改装することができる。   When the metal dam is supported by the lifter, the existing rotary kiln can be easily converted to the structure of the present invention.

以下、図面を参照して実施の形態について説明する。   Hereinafter, embodiments will be described with reference to the drawings.

第1図は実施の形態に係るロータリキルンの長手方向の断面図、第2図は第1図のII−II線に沿う拡大断面図、第3図はロータリキルンの内部の斜視図、第4図はダムを構成するダムプレートの構成図、第5図はダムプレート同士を連結する金具の斜視図である。   1 is a longitudinal sectional view of a rotary kiln according to an embodiment, FIG. 2 is an enlarged sectional view taken along line II-II of FIG. 1, FIG. 3 is a perspective view of the interior of the rotary kiln, FIG. 5 is a structural view of a dam plate constituting the dam, and FIG. 5 is a perspective view of a metal fitting for connecting the dam plates to each other.

第1図の通り、ロータリキルン1は、外周の殻体を構成する円筒状の鉄皮2の内周に耐火煉瓦3を煉瓦巻きしたものである。   As shown in FIG. 1, the rotary kiln 1 is formed by bricking a refractory brick 3 around the inner periphery of a cylindrical iron skin 2 constituting an outer shell.

この鉄皮2からリフター取付用のアンカー金物4が突設され、このアンカー金物4にリフター5が取り付けられている。このリフター5は、ロータリキルンの軸心線と平行方向に延在する板状のものである。リフター5は、周方向及び軸心線方向のいずれにも間隔をおいて複数個設けられている。   An anchor metal 4 for attaching a lifter projects from the iron skin 2, and a lifter 5 is attached to the anchor metal 4. The lifter 5 has a plate-like shape extending in a direction parallel to the axial center line of the rotary kiln. A plurality of lifters 5 are provided at intervals in both the circumferential direction and the axial direction.

このロータリキルン1の内周面に金属製のダム6が設置されている。このダム6は、第4図(a)に示す比較的長い円弧状のダムプレート7と、第4図(b)に示す比較的短い円弧状のダムプレート8と、両者を連結する連結金具9とからなる。   A metal dam 6 is installed on the inner peripheral surface of the rotary kiln 1. The dam 6 includes a relatively long arc-shaped dam plate 7 shown in FIG. 4 (a), a relatively short arc-shaped dam plate 8 shown in FIG. 4 (b), and a connecting metal 9 for connecting the two. It consists of.

各ダムプレート7,8は、第4図(a),(b)のC−C線断面図である第4図(c)に明瞭に示される通り、ロータリキルン1の煉瓦3の内周面に重なる底板7a,8aと、該底板7a,8aから立設された縦板7b,8bと、略三角形の補強板7c,8cとからなる。補強板7c,8cは、底板7a,8a及び縦板7b,8bと直交方向に設けられている。連結金具9はコ字形状のものである。   As shown clearly in FIG. 4 (c), which is a cross-sectional view taken along the line C-C of FIGS. 4 (a) and 4 (b), the dam plates 7 and 8 are the inner peripheral surface of the brick 3 of the rotary kiln 1. The bottom plates 7a and 8a overlap each other, the vertical plates 7b and 8b erected from the bottom plates 7a and 8a, and the substantially triangular reinforcing plates 7c and 8c. The reinforcing plates 7c and 8c are provided in a direction orthogonal to the bottom plates 7a and 8a and the vertical plates 7b and 8b. The connecting fitting 9 is U-shaped.

このダム6は、支持金具10を介してリフター5に支持されている。この支持金具10は、ロータリキルンの軸心線方向に延在し、一端側がリフター5に溶接され、他端側にダムプレート7が溶接されている。ダムプレート7,8は周方向に交互に配設されている。各ダムプレート7が支持金具10によってリフター5に直に支持されている。ダムプレート8は連結金具9を介してダムプレート8に取り付けられている。連結金具9はダムプレート7,8の両端に跨って配置され、その内部にダムプレート7,8の端部が挿入されて溶接されている。   The dam 6 is supported by the lifter 5 via the support fitting 10. The support fitting 10 extends in the axial center line direction of the rotary kiln, one end side is welded to the lifter 5, and the dam plate 7 is welded to the other end side. The dam plates 7 and 8 are alternately arranged in the circumferential direction. Each dam plate 7 is directly supported by the lifter 5 by the support fitting 10. The dam plate 8 is attached to the dam plate 8 via a connecting fitting 9. The connecting metal fitting 9 is disposed across both ends of the dam plates 7 and 8, and the end portions of the dam plates 7 and 8 are inserted and welded therein.

このように構成されたロータリキルン1は、ダム6が金属(好ましくはSUS304等のステンレス)製とされているため、ダム煉瓦破片が製品活性炭に混入することがなく、製品活性炭の品質が向上する。ダム6を構成する金属としては耐熱性を有するものであれば良く、一般的にはニッケルを含有する耐熱性のステンレス鋼材、例えば、ニッケル(Ni)を10〜20重量%、クロム(Cr)を25〜30重量%含有するステンレスが好ましく用いられる。   In the rotary kiln 1 configured in this way, the dam 6 is made of metal (preferably stainless steel such as SUS304), so the dam brick fragments are not mixed into the product activated carbon, and the quality of the product activated carbon is improved. . The metal constituting the dam 6 may be any metal as long as it has heat resistance. Generally, a heat-resistant stainless steel material containing nickel, for example, nickel (Ni) is 10 to 20% by weight and chromium (Cr) is used. Stainless steel containing 25 to 30% by weight is preferably used.

また、この実施の形態にあっては、ダムプレート7,8を支持金具10を介してリフター5に支持させているので、既設のロータリキルンについても簡単な改装工事で本発明構造とすることができる。   In this embodiment, since the dam plates 7 and 8 are supported by the lifter 5 via the support bracket 10, the existing rotary kiln can be structured according to the present invention by a simple renovation work. it can.

上記実施の形態は本発明の一例であり、本発明はこれに限定されるものではない。例えば、2種類のダムプレート7,8の代わりに1種類のダムプレートを用いてもよい。また、ロータリキルンを新規に制作するときには、ダムプレート用のアンカー金物を鉄皮に取り付けておき、このアンカー金物にダムプレートを取り付けてもよい。   The above embodiment is an example of the present invention, and the present invention is not limited to this. For example, one type of dam plate may be used instead of the two types of dam plates 7 and 8. Further, when a rotary kiln is newly produced, an anchor hardware for a dam plate may be attached to the iron skin, and the dam plate may be attached to the anchor hardware.

実施の形態に係るロータリキルンの長手方向の断面図である。It is sectional drawing of the longitudinal direction of the rotary kiln which concerns on embodiment. 第1図のII−II線に沿う拡大断面図である。It is an expanded sectional view which follows the II-II line of FIG. ロータリキルンの内部の斜視図である。It is a perspective view inside a rotary kiln. ダムを構成するダムプレートの構成図である。It is a block diagram of the dam plate which comprises a dam. ダムプレート同士を連結する金具の斜視図である。It is a perspective view of the metal fitting which connects dam plates.

符号の説明Explanation of symbols

1 ロータリキルン
2 鉄皮
5 リフター
6 ダム
7,8 ダムプレート
9 連結金具
10 支持金具
DESCRIPTION OF SYMBOLS 1 Rotary kiln 2 Iron skin 5 Lifter 6 Dam 7, 8 Dam plate 9 Connection metal fitting 10 Support metal fitting

Claims (3)

内周面から突出するダムが周設されているロータリキルンにおいて、該ダムを金属製としたことを特徴とするロータリキルン。   A rotary kiln having a dam projecting from an inner peripheral surface, wherein the dam is made of metal. 請求項1において、該ロータリキルンの内周面に金属製のリフターが設置されており、前記ダムを該リフターに支持させたことを特徴とするロータリキルン。   2. The rotary kiln according to claim 1, wherein a metal lifter is installed on an inner peripheral surface of the rotary kiln, and the dam is supported by the lifter. 請求項1又は2において、活性炭の製造用のロータリキルンであることを特徴とするロータリキルン。   The rotary kiln according to claim 1 or 2, wherein the rotary kiln is for manufacturing activated carbon.
JP2005225619A 2005-08-03 2005-08-03 Rotary kiln Pending JP2007040615A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008105298A1 (en) 2007-02-21 2008-09-04 Asahi Glass Company, Limited Laminated sheet
US9555342B2 (en) 2010-05-18 2017-01-31 Envirollea Inc. Thermal processing reactor for mixtures, fabrication of the reactor, processes using the reactors and uses of the products obtained
CN112460955A (en) * 2020-12-03 2021-03-09 杭州岳崎环保科技有限公司 Drying mechanism and activated carbon particle preparation process

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57145998U (en) * 1981-03-10 1982-09-13
JPS6146236A (en) * 1984-08-11 1986-03-06 Iwatani & Co Continuous gas and liquid contacting reaction method and its apparatus
JPH0383807A (en) * 1989-08-29 1991-04-09 Osaka Gas Co Ltd Apparatus for producing carbon powder
JPH0632608A (en) * 1992-07-13 1994-02-08 Iominaale:Kk Production of fowl dropping charcoal and apparatus therefor
JP2000239082A (en) * 1999-02-22 2000-09-05 Fuchii Toshio Production of carbonized fertilizer and apparatus therefor
JP2002029723A (en) * 2000-07-21 2002-01-29 Fuchii Toshio Method and device for producing activated carbon
JP2002188892A (en) * 2000-12-18 2002-07-05 Tokyo Yogyo Co Ltd Wall of rotary kiln having level difference
JP2002265953A (en) * 2001-03-09 2002-09-18 Nissei Engineering Kk Carbonization apparatus and equipment
JP2005111412A (en) * 2003-10-09 2005-04-28 Takasago Ind Co Ltd Heat treating method of powder
JP2005180803A (en) * 2003-12-19 2005-07-07 Daio Paper Corp Rotary burning device and method of burning lime

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57145998U (en) * 1981-03-10 1982-09-13
JPS6146236A (en) * 1984-08-11 1986-03-06 Iwatani & Co Continuous gas and liquid contacting reaction method and its apparatus
JPH0383807A (en) * 1989-08-29 1991-04-09 Osaka Gas Co Ltd Apparatus for producing carbon powder
JPH0632608A (en) * 1992-07-13 1994-02-08 Iominaale:Kk Production of fowl dropping charcoal and apparatus therefor
JP2000239082A (en) * 1999-02-22 2000-09-05 Fuchii Toshio Production of carbonized fertilizer and apparatus therefor
JP2002029723A (en) * 2000-07-21 2002-01-29 Fuchii Toshio Method and device for producing activated carbon
JP2002188892A (en) * 2000-12-18 2002-07-05 Tokyo Yogyo Co Ltd Wall of rotary kiln having level difference
JP2002265953A (en) * 2001-03-09 2002-09-18 Nissei Engineering Kk Carbonization apparatus and equipment
JP2005111412A (en) * 2003-10-09 2005-04-28 Takasago Ind Co Ltd Heat treating method of powder
JP2005180803A (en) * 2003-12-19 2005-07-07 Daio Paper Corp Rotary burning device and method of burning lime

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008105298A1 (en) 2007-02-21 2008-09-04 Asahi Glass Company, Limited Laminated sheet
US9555342B2 (en) 2010-05-18 2017-01-31 Envirollea Inc. Thermal processing reactor for mixtures, fabrication of the reactor, processes using the reactors and uses of the products obtained
CN112460955A (en) * 2020-12-03 2021-03-09 杭州岳崎环保科技有限公司 Drying mechanism and activated carbon particle preparation process

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