JPH04174288A - Mixing device for circular furnace - Google Patents
Mixing device for circular furnaceInfo
- Publication number
- JPH04174288A JPH04174288A JP30162290A JP30162290A JPH04174288A JP H04174288 A JPH04174288 A JP H04174288A JP 30162290 A JP30162290 A JP 30162290A JP 30162290 A JP30162290 A JP 30162290A JP H04174288 A JPH04174288 A JP H04174288A
- Authority
- JP
- Japan
- Prior art keywords
- stirring
- mixing
- arm
- pin
- rod
- 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
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 67
- 238000001816 cooling Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 101100383698 Secale cereale rscc gene Proteins 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005524 ceramic coating Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は海生物や一般廃棄物を焼却処理する円形炉の攪
拌装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a stirring device for a circular furnace for incinerating marine life and general waste.
（従来の技術）
海生物や一般廃棄物を焼却処理する円形炉の下部には、
水平面内で回転する攪拌アームから炉床方向に撹拌棒を
垂下させた構造の攪拌装置が取り付けられ、焼却物を撹
拌棒の下端により撹拌しつつ焼却を行わせている。(Conventional technology) At the bottom of a circular furnace that incinerates marine life and general waste, there is a
A stirring device with a stirring rod hanging down toward the hearth from a stirring arm that rotates in a horizontal plane is attached, and the incineration material is stirred by the lower end of the stirring rod while being incinerated.
ところが従来のこの種の攪拌装置では、攪拌アームと撹
拌棒がともに耐食性のステンレススチールからなる一体
構造物とされていたため、特に海生物を焼却する際には
腐食性の雰囲気ガスが炉内に充満し、高温酸化や塩素化
合物による腐食減肉が発生した。また焼却バーナのフレ
ームが攪拌装置に当たることによってステンレススチー
ルの組織が粗大化して強度が低下し、短期間で撹拌棒の
損傷が発生した。However, in conventional stirring devices of this type, both the stirring arm and the stirring rod were made of corrosion-resistant stainless steel, which caused corrosive atmospheric gas to fill the furnace, especially when incinerating marine life. However, corrosion and thinning due to high temperature oxidation and chlorine compounds occurred. In addition, when the frame of the incinerator burner hit the stirring device, the structure of the stainless steel became coarse and its strength decreased, and the stirring rod was damaged in a short period of time.
このために従来は２〜３ケ月で攪拌装置を交換しなけれ
ばならず、そのたびに補修を行っていたので焼却設備の
稼働率が低下し、また設備維持費が高くなっていた。For this reason, in the past, the stirring device had to be replaced every two to three months, and repairs were performed each time, resulting in a decrease in the operating rate of the incineration equipment and an increase in equipment maintenance costs.
（発明が解決しようとする課ｌｌ！ｌ）本発明は上記し
た従来の問題点を解消して、海生物のような腐食性の廃
棄物を焼却した場合にも損傷しに＜＜、焼却設備の稼働
率を低下させることのない円形炉の攪拌装置を提供する
ために完成されたものである。(Issues to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and prevents incineration equipment from being damaged even when corrosive waste such as marine life is incinerated. This was completed in order to provide a stirring device for a circular furnace that does not reduce the operating rate of the furnace.
（課題を解決するための手段）
上記の課題を解決するためになされた本発明は、円形炉
の内部で旋回する中空金属製の攪拌アームの外周面を耐
火キャスタブルで包むとともに、外周面がセラミンク類
の筒により覆われた中空金属製の撹拌棒の上端を上記攪
拌アームにピンによって着脱自在に取付け、このピンの
頭部を耐火キャスタブルに埋没させたことを特徴とする
ものである。(Means for Solving the Problems) The present invention, which has been made to solve the above problems, wraps the outer peripheral surface of a hollow metal stirring arm that rotates inside a circular furnace with a refractory castable, and the outer peripheral surface is made of ceramic. The upper end of a hollow metal stirring rod covered with a similar cylinder is removably attached to the stirring arm with a pin, and the head of this pin is buried in a fireproof castable.
以下に本発明を図示の実施例によって更に詳細に説明す
る。The present invention will be explained in more detail below with reference to illustrated embodiments.
（実施例）
第１図は本発明の攪拌装置を備えた円形炉を示すもので
、（１）は円形炉の炉体、（２）は焼却物を投入するた
めのフィーダ、（３）は焼却用のバーナ、（４）は炉体
（１）の下部に設けられた撹拌装置である。(Example) Fig. 1 shows a circular furnace equipped with the stirring device of the present invention, (1) is the furnace body of the circular furnace, (2) is a feeder for charging the incineration material, and (3) is The incineration burner (4) is a stirring device provided at the bottom of the furnace body (1).
この攪拌装置（４）は炉底を貫通して炉内に延びる垂直
な回転軸（５）と、この回転軸（５）から水平に延びる
攪拌アーム（６）と、この攪拌アーム（６）から炉床方
向に延びる撹拌棒（７）とからなるものである。This stirring device (4) has a vertical rotating shaft (5) that extends into the furnace through the bottom of the furnace, a stirring arm (6) that extends horizontally from this rotating shaft (5), and a stirring arm (6) that extends from this stirring arm (6). It consists of a stirring rod (7) extending in the direction of the hearth.
第２図と第３図は本発明の主要部分を拡大して示す図で
あり、攪拌アーム（６）は５ＩＩＳ ３１６Ｌのような
耐食性の中空金属棒からなり、その表面には同材質のキ
ャスタアンカー（８）が溶接され、そのうえに耐火キャ
スタブル（９）が数十ミリの厚さに施工され攪拌アーム
（６）を包んでいる。なお攪拌アーム（６）及びキャス
タアンカー（８）の表面には、ｒｓｃｃ ３０２ コー
ト」として市販されているセラミックコーティングを施
して焼成しておくことが好ましい。このｒＳＣＣ３０２
コート」は窒化チタン、アルミナ、窒化硅素を主成分と
するコーティング剤であり、高温雰囲気下におけるガス
アタックに対して優れた耐食性を示し、かつステンレス
スチールに対する接着性に優れたものである。なお攪拌
アーム（６）の内部には回転軸（５）を通して常に冷却
空気が供給されている。Figures 2 and 3 are enlarged views of the main parts of the present invention, and the stirring arm (6) is made of a corrosion-resistant hollow metal rod such as 5IIS 316L, and the surface of the stirring arm (6) is made of caster anchors made of the same material. (8) is welded, and a refractory castable (9) several tens of millimeters thick is constructed on top of it to enclose the stirring arm (6). Note that it is preferable that the surfaces of the stirring arm (6) and caster anchor (8) be coated with a ceramic coating commercially available as "RSCC 302 Coat" and then fired. This rSCC302
Coat is a coating agent whose main components are titanium nitride, alumina, and silicon nitride, and it exhibits excellent corrosion resistance against gas attack in high-temperature atmospheres and has excellent adhesion to stainless steel. Note that cooling air is constantly supplied to the inside of the stirring arm (6) through the rotating shaft (5).
撹拌棒（７）もＳＯ５３１６Ｌのような耐食性の中空金
属棒からなるもので、その表面に攪拌アーム（６）と同
様のｒｓｃｃ ３０２コート」を施しておくことが好ま
しい、そして更にその外側にセラミンク類の？ＪＯ■が
ボルト００により固定されている。このセラミンク類の
筒θ０としては、例えば「サイアロン」の名称でアルミ
溶湯部品として市販されているセラミック材料を使用す
ることができる。The stirring rod (7) is also made of a corrosion-resistant hollow metal rod such as SO5316L, and its surface is preferably coated with the same rscc 302 coating as the stirring arm (6), and the outside is coated with a ceramic material. of? JO■ is fixed with bolt 00. As this ceramic cylinder θ0, for example, a ceramic material commercially available as a molten aluminum part under the name "Sialon" can be used.
このような撹拌棒（７）はその上端を攪拌アーム（６）
の先端部分に垂直に形成された取付孔に挿入したうえ、
第３図、第４図に示されるようにピン＋１２１を挿入し
て攪拌アーム（６）に着脱自在に固定しである、そして
このピンａりの頭部は前記した耐火キャスタブル（９）
に埋没させ、ピンαりを着脱するための孔部αりに例え
ば綿状のシリカアルミナ系繊維ａ９および綿状のシリカ
アルミナ系繊維に無機質バインダーを混合してペースト
状とした蓋側をして炉内雰囲気が直接接触しないように
なっている。Such a stirring rod (7) has its upper end connected to the stirring arm (6).
Insert it into the mounting hole formed perpendicularly to the tip of the
As shown in Figures 3 and 4, a pin +121 is inserted and detachably fixed to the stirring arm (6), and the head of this pin is attached to the above-mentioned fireproof castable (9).
The cover side is filled with a paste made by mixing cotton-like silica-alumina fibers A9 and cotton-like silica-alumina fibers with an inorganic binder, for example, in the hole α for attaching and detaching the pins. The furnace atmosphere is designed to prevent direct contact.
なお撹拌棒ａ）及びセラミンク類の筒０ｆｆｌには、多
数の透孔０５１を好ましくは千鳥状に形成するとともに
、撹拌棒（７）の上端付近にも攪拌アーム（６）の内部
と連通ずる孔０６）を形成し、冷却空気が撹拌棒（７１
の内部を通りこれらの透孔ａ９から噴出できるようにな
っている。更に攪拌アーム（６）と撹拌棒（７）の上端
との間には冷却風を撹拌棒（７）の上端からその外表面
に沿って噴出するための冷却孔０７）が設けられている
。In addition, a large number of through holes 051 are preferably formed in the stirring rod a) and the ceramic cylinder 0ffl in a staggered manner, and a hole communicating with the inside of the stirring arm (6) is also provided near the upper end of the stirring rod (7). 06), and the cooling air flows through the stirring rod (71
It is possible to pass through the inside of the tank and eject from these through holes a9. Furthermore, cooling holes 07) are provided between the stirring arm (6) and the upper end of the stirring rod (7) for blowing out cooling air from the upper end of the stirring rod (7) along its outer surface.
なお撹拌棒（７）とセラミンク類の筒００）とが直接接
触することを防止するために、両者の間にセラミックフ
ァイバー０８１を挿入し、アルミナペーストにより固定
しておくことが好ましい。これにより運転中にセラミン
ク類の筒０ωに衝撃がかかることを防くことができる。In order to prevent direct contact between the stirring rod (7) and the ceramic cylinder 00), it is preferable to insert a ceramic fiber 081 between them and fix them with alumina paste. This can prevent impact from being applied to the ceramic cylinder 0ω during operation.
（作用）
このように構成された本発明の攪拌装置は、従来のもの
と同様に海生物や一般廃棄物を焼却処理する円形炉の内
部で焼却物を攪拌するために使用されるものである。(Function) The agitation device of the present invention configured as described above is used for agitating the incinerated material inside a circular furnace for incinerating marine life and general waste, similar to conventional devices. .
しかし本発明の攪拌装置は、攪拌アーム（６）と撹拌棒
（７）の外表面がそれぞれ耐火キャスタブル（９）とセ
ラミンク類の筒０［Ｄによって覆われているため、腐食
性の高温雰囲気が内部の金属部分に直接接触することが
なく、腐食を防止することができる。However, in the stirring device of the present invention, the outer surfaces of the stirring arm (6) and stirring rod (7) are covered with the refractory castable (9) and the ceramic cylinder 0 [D], respectively, so that the corrosive high-temperature atmosphere is prevented. There is no direct contact with internal metal parts, which prevents corrosion.
また従来の攪拌装置とは異なり、撹拌棒（７）は攪拌ア
ーム（６）に対してピン０りによって着脱自在に取付け
られているために、長期間の使用により撹拌棒（７）が
劣化した場合にも容易に交換が可能である。Also, unlike conventional stirring devices, the stirring rod (7) is detachably attached to the stirring arm (6) with a pin, so the stirring rod (7) deteriorates due to long-term use. It can be easily replaced in any case.
しかもこのピン０２１の頭部も耐火キャスタブル（９）
に埋没させであるため、腐食性の高温雰囲気との接触が
防止される。Moreover, the head of this pin 021 is also fireproof castable (9)
This prevents contact with corrosive high-temperature atmospheres.
また実施例のように攪拌アーム（６）と撹拌棒（７）の
上端との間に冷却風を撹拌棒（７）に向かって噴出する
冷却孔ａ力を設けたものは、撹拌棒（７）の外周面に沿
って冷却風が流れて撹拌棒（７）及びセラミック製の筒
００）を冷却するので、撹拌棒（７）の腐食が確実に防
止される。また撹拌棒（７）及びセラミック製の筒ａω
に形成された多数の透孔０５）からも冷却風が噴出し、
これらの部分へのダスト付着を防止するとともに冷却効
果を高めている。Further, as in the embodiment, a cooling hole a force is provided between the stirring arm (6) and the upper end of the stirring rod (7) to blow out cooling air toward the stirring rod (7). ) and cools the stirring rod (7) and the ceramic tube 00), thereby reliably preventing corrosion of the stirring rod (7). In addition, a stirring rod (7) and a ceramic cylinder aω
Cooling air also blows out from the numerous through holes 05) formed in the
This prevents dust from adhering to these parts and enhances the cooling effect.
このように、本発明の攪拌装置は腐食しにくい構造とな
っており、従来は年に４回も炉を停止して交換が必要で
あった攪拌装置の使用寿命を、１年以上にまで延長させ
ることができる。In this way, the stirring device of the present invention has a structure that is resistant to corrosion, and the service life of the stirring device, which conventionally required shutting down and replacing the furnace four times a year, has been extended to over one year. can be done.
（発明の効果）
以上に説明したように、本発明の円形炉の攪拌装置は、
海生物のような腐食性のガスを発生する廃棄物を焼却し
た場合にも炉内の腐食性の雰囲気が金属部分に接触しな
いので損傷しにり＜、その使用寿命を大幅に延長させる
ことができる。従って従来のようにしばしば炉を停止し
て交換作業を行う必要がないので、焼却設備の稼働率を
向上させることができる。(Effects of the Invention) As explained above, the circular furnace stirring device of the present invention has the following features:
Even when waste that generates corrosive gases, such as sea creatures, is incinerated, the corrosive atmosphere inside the furnace does not come into contact with the metal parts, so they are less likely to be damaged, and their service life can be significantly extended. can. Therefore, it is not necessary to frequently stop the furnace and perform replacement work as in the past, so the operating rate of the incineration equipment can be improved.
よって本発明は従来の問題点を解消した円形炉の攪拌装
置として、産業の発展に起用するところは極めて大きい
ものである。Therefore, the present invention has great potential to be used in the development of industry as a stirring device for a circular furnace that solves the problems of the conventional apparatus.
第１図は本発明の実施例を示す一部切欠正面図、第２図
はその要部の一部切欠正面図、第３図は第２図のＡ−Ａ
断面図、第４図は第２図の中央水平断面図である。
（６）：攪拌アーム、（７）：撹拌棒、（９）：耐火キ
ャスタブル、０口）：セラミック製の筒、０り：ビン、
ａり：冷却孔。Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a partially cutaway front view of the main part thereof, and Fig. 3 is A-A in Fig. 2.
The sectional view, FIG. 4, is a central horizontal sectional view of FIG. (6): Stirring arm, (7): Stirring rod, (9): Fireproof castable, 0 mouth): Ceramic cylinder, 0: Bottle,
a: Cooling hole.
Claims (1)
６）の外周面を耐火キャスタブル（９）で包むとともに
、外周面がセラミック製の筒（１０）により覆われた中
空金属製の撹拌棒（７）の上端を上記攪拌アーム（６）
にピン（１２）によって着脱自在に取付け、このピン（
１２）の頭部を耐火キャスタブル（９）に埋没させたこ
とを特徴とする円形炉の撹拌装置。 ２、攪拌アーム（６）と撹拌棒（７）の上端との間に冷
却風を撹拌棒（７）に向かって噴出する冷却孔（１７）
を設けた請求項１記載の円形炉の撹拌装置。[Claims] 1. A hollow metal stirring arm (
The outer peripheral surface of 6) is wrapped with a fireproof castable (9), and the upper end of a hollow metal stirring rod (7) whose outer peripheral surface is covered with a ceramic tube (10) is attached to the stirring arm (6).
It is removably attached with a pin (12) to the
A stirring device for a circular furnace, characterized in that the head of 12) is buried in a refractory castable (9). 2. A cooling hole (17) between the stirring arm (6) and the upper end of the stirring rod (7) that blows cooling air toward the stirring rod (7).
A stirring device for a circular furnace according to claim 1, further comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30162290A JPH04174288A (en) | 1990-11-07 | 1990-11-07 | Mixing device for circular furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30162290A JPH04174288A (en) | 1990-11-07 | 1990-11-07 | Mixing device for circular furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04174288A true JPH04174288A (en) | 1992-06-22 |
Family
ID=17899163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30162290A Pending JPH04174288A (en) | 1990-11-07 | 1990-11-07 | Mixing device for circular furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04174288A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791713A (en) * | 2012-10-29 | 2014-05-14 | 天龙科技炉业(无锡)有限公司 | Muff pit type furnace of suspended novel fire hole structure |
| CN105423745A (en) * | 2015-11-30 | 2016-03-23 | 中色科技股份有限公司 | Method for solving uneven heating of ingot castings on vertically-pushing type heating furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4424792Y1 (en) * | 1966-01-08 | 1969-10-18 | ||
| JPS6017619A (en) * | 1983-07-12 | 1985-01-29 | Okawara Mfg Co Ltd | Cylindrical agitating incinerator |
| JPS61147091A (en) * | 1984-12-21 | 1986-07-04 | 富士炉材株式会社 | Tees of rotary type multistage furnace |
-
1990
- 1990-11-07 JP JP30162290A patent/JPH04174288A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4424792Y1 (en) * | 1966-01-08 | 1969-10-18 | ||
| JPS6017619A (en) * | 1983-07-12 | 1985-01-29 | Okawara Mfg Co Ltd | Cylindrical agitating incinerator |
| JPS61147091A (en) * | 1984-12-21 | 1986-07-04 | 富士炉材株式会社 | Tees of rotary type multistage furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791713A (en) * | 2012-10-29 | 2014-05-14 | 天龙科技炉业(无锡)有限公司 | Muff pit type furnace of suspended novel fire hole structure |
| CN105423745A (en) * | 2015-11-30 | 2016-03-23 | 中色科技股份有限公司 | Method for solving uneven heating of ingot castings on vertically-pushing type heating furnace |
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| JPH11351758A (en) | Water-cooled jacket for arc type electric furnace | |
| US5103072A (en) | Submersible plasma torch | |
| JPH04174288A (en) | Mixing device for circular furnace | |
| CN105671244A (en) | Spherical hinge support replacement method for 120-ton or above converter | |
| CA2817708C (en) | Reinforced distributor for post-combustion lance | |
| JP4601765B2 (en) | Temperature measuring probe device | |
| JPS62136517A (en) | Gas scrubbing apparatus for molten metal container | |
| JPH04124213A (en) | Lance pipe | |
| JPS602607A (en) | Repairing method of blast furnace wall | |
| JP3787689B2 (en) | Metal anchor for irregular refractories | |
| CN218470020U (en) | High-temperature wear-resistant thermocouple protective sleeve suitable for boiler | |
| JP3007308B2 (en) | Long nozzle structure | |
| JPH0434395Y2 (en) | ||
| JPS6328817A (en) | Furnace body cooling method of converter | |
| JPS629315Y2 (en) | ||
| JPS5934878Y2 (en) | Lance nozzle for refractory wall repair | |
| JP2631439B2 (en) | Nozzle for injecting pulverized coal into furnace of iron making device and method of manufacturing the same | |
| JPH0618231Y2 (en) | High-speed rod for dismantling high temperature furnace wall | |
| JP2536793Y2 (en) | Peripheral structure of gas nozzle for electric furnace gas injection | |
| JPH0613254Y2 (en) | Molten metal agitator | |
| JPH045988Y2 (en) | ||
| JPS6229459Y2 (en) | ||
| JPH0318818Y2 (en) | ||
| JPS59147985A (en) | Pin consisting of two constitutional element for holding and/or cooling lining of ceramics of thermal reaction chamber | |
| JPS61195910A (en) | Tuyere construction |