JPS6119309Y2 - - Google Patents
Info
- Publication number
- JPS6119309Y2 JPS6119309Y2 JP1981035804U JP3580481U JPS6119309Y2 JP S6119309 Y2 JPS6119309 Y2 JP S6119309Y2 JP 1981035804 U JP1981035804 U JP 1981035804U JP 3580481 U JP3580481 U JP 3580481U JP S6119309 Y2 JPS6119309 Y2 JP S6119309Y2
- Authority
- JP
- Japan
- Prior art keywords
- lance
- discharge port
- melting furnace
- molten slag
- waste
- 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
Links
- 238000002844 melting Methods 0.000 claims description 47
- 230000008018 melting Effects 0.000 claims description 47
- 239000002893 slag Substances 0.000 claims description 29
- 238000002485 combustion reaction Methods 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 18
- 239000000446 fuel Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は廃棄物の溶融処理装置に関し、詳細に
は、塗料かす等の産業廃棄物や焼却設備から排出
される燃焼残渣等を溶融処理したり、或は廃棄物
の燃焼と溶融を同時に行なう様な溶融処理装置に
おいて、火炎室の温度を均一に保持すると共に溶
融スラグ排出口の目詰まりを防止できる様にした
溶融処理装置に関するものである。[Detailed description of the invention] The present invention relates to a waste melting processing device, and more specifically, it is used to melt and process industrial waste such as paint scum, combustion residue discharged from incineration equipment, etc. The present invention relates to a melting processing apparatus that simultaneously performs combustion and melting, and is capable of maintaining a uniform temperature in a flame chamber and preventing clogging of a molten slag discharge port.
前述のような溶融処理装置としては、たとえば
第１図（概略説明図）に示す如き装置が知られて
いる。即ち第１図において１は回転型溶融炉（以
下単に「溶融炉」という）、７は排ガス再燃焼
室、８は溶融スラグ水冷槽を夫々示し、廃棄物等
はホツパーＨから溶融炉１に投入され、火炎室２
の上部耐火壁９の略中央に設けたバーナー３によ
つて燃焼及び溶融処理される。溶融炉１の下位に
は再燃焼室７が配置されており、溶融炉１で発生
したH2やCO等を含む不完全燃焼排ガスはこの部
分で再燃焼バーナ７Ｂによつて完全燃焼され、順
次熱交換器７０に導びかれる。熱交換器７０で
は、送風器８０から送り込まれる清浄空気と排ガ
スの間で熱交換が行なわれ、加熱された清浄空気
は燃焼用空気として溶融炉１内に吹き込まれる。
一方溶融炉１内の溶融スラグ６は再燃焼室７を経
て水冷槽８に落下し、冷却凝固した後コンベア等
で順次搬出される。 As the above-mentioned melt processing apparatus, for example, an apparatus as shown in FIG. 1 (schematic explanatory diagram) is known. That is, in Fig. 1, 1 is a rotary melting furnace (hereinafter simply referred to as "melting furnace"), 7 is an exhaust gas re-combustion chamber, and 8 is a molten slag water cooling tank, and waste materials are fed into the melting furnace 1 from a hopper H. and flame chamber 2
The burner 3 provided approximately at the center of the upper fireproof wall 9 burns and melts the material. A re-combustion chamber 7 is arranged below the melting furnace 1, and the incompletely combusted exhaust gas containing H2 , CO, etc. generated in the melting furnace 1 is completely combusted in this section by the re-combustion burner 7B, and is sequentially It is guided to a heat exchanger 70. In the heat exchanger 70, heat is exchanged between the clean air sent from the blower 80 and the exhaust gas, and the heated clean air is blown into the melting furnace 1 as combustion air.
On the other hand, the molten slag 6 in the melting furnace 1 passes through the re-combustion chamber 7 and falls into the water-cooling tank 8, where it is cooled and solidified and then sequentially carried out by a conveyor or the like.
ところでこの種の装置における溶融炉１は第１
図に示す様に火炎室２の中心上部に設けられた燃
焼バーナ３の火炎及びその幅射熱によつて炉床４
上の廃棄物が溶融される様になつている。そして
燃焼バーナ３は溶融スラグ排出口（以下単に「排
出口」という）５の真上に位置し、又炉床４は傾
斜して設けることにより、炉床４下部全周面上の
廃棄物を溶融して流動状の溶融スラグ６とする。
溶融スラグ６は炉床４を床面に沿つて流下し、続
いて排出口５の内周壁５ｗを伝つて自重流下し、
更に下設の再燃焼室７及び連通口７ｄを経由して
水冷槽８内に落下する様になつている。 By the way, the melting furnace 1 in this type of apparatus is the first one.
As shown in the figure, the flame of the combustion burner 3 installed at the upper center of the flame chamber 2 and its radiant heat cause the hearth
The waste on top is now melted. The combustion burner 3 is located directly above the molten slag discharge port (hereinafter simply referred to as "discharge port") 5, and the hearth 4 is installed at an angle, so that the waste on the entire circumference of the lower part of the hearth 4 can be removed. It is melted to form a fluid molten slag 6.
The molten slag 6 flows down the hearth 4 along the floor surface, and then flows down by its own weight along the inner circumferential wall 5w of the discharge port 5.
Furthermore, it falls into the water cooling tank 8 via the lower reburning chamber 7 and the communication port 7d.
ところで上記の様な溶融処理の目的は、廃棄物
を溶融処理することによつて嵩を小さくして、後
処理を容易にし、場合によつては生成したスラグ
を骨材等として有効利用できる様にするところに
あるが、現実には炉内の廃棄物が十分に溶融され
ることなく送られることが度々生じる為、所期の
目的を十分達成できていない。しかも排出口５及
び連通口７ｄで溶融スラグが付着固化成長して目
詰まりを生じることが度々生じ、この際には溶融
炉１の操業そのものが不安定若しくは不可能とな
る。 By the way, the purpose of the above-mentioned melting treatment is to reduce the bulk of waste by melting it, making post-processing easier, and in some cases, making it possible to effectively use the generated slag as aggregate, etc. However, in reality, the waste in the furnace is often sent without being sufficiently melted, so the intended purpose cannot be fully achieved. Moreover, the molten slag often adheres and solidifies and grows at the discharge port 5 and the communication port 7d, causing clogging, and in this case, the operation of the melting furnace 1 itself becomes unstable or impossible.
本考案者等はこの様な問題点を解決すべく種々
実験研究を重ねた結果、下記する２つの主要な知
見を得た。即ち、前述の様な事態を生じる原因の
１つは、傾斜炉床を排出口に向けて移動する廃
棄物の厚みが炉床全面で均一ではなく、又バー
ナが単一であることからバーナの火炎及びその幅
射熱が炉床面上（特に炉床下部全周面上）の廃棄
物に均等に作用しないということ等の為に火炎室
内（特に拝出口上部付近）の温度が全周にわたり
均等でなく、且つ溶融点以上に維持されていない
ところが部分的に存在するという点にある。 The inventors of the present invention have conducted various experimental studies to solve these problems, and have obtained the following two main findings. In other words, one of the reasons for the above-mentioned situation is that the thickness of the waste moving toward the discharge port on the inclined hearth is not uniform over the entire surface of the hearth, and since there is only one burner, the thickness of the waste is not uniform over the whole surface of the hearth. Because the flame and its radiant heat do not act uniformly on the waste on the hearth surface (especially on the entire circumference of the lower part of the hearth), the temperature in the flame chamber (especially near the upper part of the outlet) increases over the entire circumference. The problem lies in the fact that it is not uniform and that there are some areas where it is not maintained above the melting point.
もう１つの原因は、仮に火炎室内の温度を完全
に且つ均一に溶融点以上に維持し得たとしても、
溶融炉の構造上あるいは再燃焼室との連結上、排
出口の外側は溶融点以下の温度雰囲気である為、
排出口内周壁を流下する溶融スラグの一部は排出
口内周壁下部に付着固化し更に、これらの固化物
が成長するることにより遂には排出口をふさぐに
至るという点にある。 Another reason is that even if the temperature inside the flame chamber could be maintained completely and uniformly above the melting point,
Due to the structure of the melting furnace or the connection with the afterburning chamber, the temperature outside the outlet is below the melting point.
A part of the molten slag flowing down the inner circumferential wall of the discharge port adheres and solidifies to the lower part of the inner circumferential wall of the discharge port, and these solidified substances grow and eventually block the discharge port.
そこで本考案者等は火炎室内部（特に炉床下
部全周面上）の温度を均一に維持することができ
る機能と、排出口の目詰まりを防止することの
できる機能とを兼備した溶融炉を提供すべく更に
研究を進めた結果遂に本考案を完成したものであ
る。 Therefore, the present inventors developed a melting furnace that has both the function of maintaining a uniform temperature inside the flame chamber (especially on the entire circumference of the lower part of the hearth) and the function of preventing clogging of the discharge port. As a result of further research, we finally completed this invention.
即ち本考案は、廃棄物用回転型溶融炉の底面略
中心部に溶融スラグ排出口を有し、その下方に溶
融スラグ水冷槽を配置してなる溶融処理装置にお
いて、溶融スラグ排出口をはさんでほぼ対称的に
複数の固定燃焼バーナを配設設すると共に、該溶
融炉の火炎室中心上部に、前記排出口と同芯的
に、且つ垂直昇降自在のランスを設け、該ランス
には、液体燃料供給路と空気供給路を内蔵し、該
ランスの下側先端にはノズルを設け上記燃料と空
気を混合して噴射できる様に構成してなる点に要
旨を有するものである。 That is, the present invention has a molten slag discharge port approximately at the center of the bottom of a rotary melting furnace for waste, and a molten slag water cooling tank is arranged below the molten slag discharge port. A plurality of fixed combustion burners are arranged almost symmetrically in the melting furnace, and a lance is provided above the center of the flame chamber of the melting furnace, concentrically with the discharge port and movable vertically, and the lance has the following features: The main feature is that the lance has a built-in liquid fuel supply path and an air supply path, and a nozzle is provided at the lower end of the lance so that the fuel and air can be mixed and injected.
上記固定燃焼バーナ（以下単に「固定バーナ」
という）とランスは溶融炉上部に別個独立に設け
得ることは勿論のこと、固定バーナとランスとを
一体として燃焼装置とし、こ装置を炉上部に着脱
自在に設けることもできる。 The above fixed combustion burner (hereinafter simply "fixed burner")
Of course, the fixed burner and the lance can be provided separately and independently in the upper part of the melting furnace, or the fixed burner and the lance can be integrated into a combustion device, and this device can be detachably installed in the upper part of the furnace.
以下実施例を示す図面に基づいて本考案の構成
及び作用効果を説明するが、下記は代表例であつ
て本考案を限定する性質のものではなく、前後記
の趣旨に適合し得る限り、固定バーナやランス等
の具体的構成を適当に変更したり、或は溶融炉の
構造上必要に応じて他の装置を付設することも可
能であり、それらはすべて本考案の技術的範囲に
含まれる。 The structure and effects of the present invention will be explained below based on drawings showing embodiments. However, the following examples are representative examples and do not limit the present invention. It is also possible to appropriately change the specific configuration of burners, lances, etc., or to attach other devices as necessary due to the structure of the melting furnace, and all of these are included in the technical scope of the present invention. .
第２図は本考案の実施例を示す概略説明図で、
１０は溶融炉、２０は溶融炉１０の上部耐火壁１
１に設けられる燃焼装置、７は溶融炉下方の排出
口１２に接続される再燃焼室である。 FIG. 2 is a schematic explanatory diagram showing an embodiment of the present invention.
10 is a melting furnace; 20 is an upper refractory wall 1 of the melting furnace 10;
A combustion device 1 is provided, and 7 is a re-combustion chamber connected to an exhaust port 12 below the melting furnace.
溶融炉１０は炉床１３と排出口１２とを底面に
有する円筒型回転溶融炉で、上部中央には肉厚円
板状の耐火壁１１が設けられ、且つ該耐火壁１１
と炉外周壁１４との間にはホツパー１５が設けら
れている。又耐火壁１１には第３図（第２図の
−線断面図）に示す様に、その中心にランス設
置用貫通孔１１１を有し、且つその周囲には、複
数（図では６個）の固定バーナ設置用貫通孔１１
２ａ，１１２ｂ…が設けられている。尚炉外周壁
１４には、該壁１４を貫通して火炎室１６に伸び
る炉内状況監視用センサー１７が設けられてい
る。 The melting furnace 10 is a cylindrical rotary melting furnace having a hearth 13 and a discharge port 12 on the bottom, and a thick disk-shaped refractory wall 11 is provided at the center of the upper part.
A hopper 15 is provided between the outer wall 14 and the outer peripheral wall 14 of the furnace. The fireproof wall 11 has a lance installation through hole 111 at its center, as shown in FIG. Through hole 11 for installing fixed burner
2a, 112b... are provided. The furnace outer peripheral wall 14 is provided with a furnace internal condition monitoring sensor 17 that extends through the wall 14 to the flame chamber 16.
燃焼装置２０は、中心部に設けられたランス２
１と該ランス２１の周囲に対称的に設けられた複
数（図では６個）の固定バーナ２２ａ，２２ｂ，
…を主たる構成要素とするものであり、ランス２
１は拝出口１２と同心的に配置されている。そし
ててランス２１は、円筒型のランスケーシング２
３内にベアリング２４によつて支持されると共
に、上部の駆動装置２５によつてランスケーシン
グ２３内を昇降自在となる如く設けられる。又、
ランス２１は耐熱性の金融パイプ２１０の先端部
に耐熱性のノズル２１３を取り付けた構造とし、
排出口１２に溶融スラグ３１が固化して目詰まり
を起こした場合には、ランス２１を降下させるこ
とによつて排出口１２に詰まつたスラグ３１をノ
ズル２１３で機械的に突き落とすことができる様
になされている。この場合パイプ２１０の上端部
にプロワ６０を取り付けると共に、ノズル２１３
に、パイプ２１０内部とノズル外部を連通する複
数の噴射口２１３ｓを設けておき、前記機械的な
突き落とし操作時に空気又は酸素を噴射する様に
すれば、突き落とし効果を更に高めることができ
る。 The combustion device 20 includes a lance 2 provided in the center.
1 and a plurality of (six in the figure) fixed burners 22a, 22b, which are symmetrically provided around the lance 21.
...is the main component, and the lance 2
1 is arranged concentrically with the entrance 12. The lance 21 is a cylindrical lance casing 2.
The lance casing 23 is supported within the lance casing 23 by a bearing 24, and is provided so as to be movable up and down within the lance casing 23 by an upper drive device 25. or,
The lance 21 has a structure in which a heat-resistant nozzle 213 is attached to the tip of a heat-resistant financial pipe 210.
If the molten slag 31 solidifies and clogs the discharge port 12, the slag 31 clogged in the discharge port 12 can be mechanically pushed out by the nozzle 213 by lowering the lance 21. is being done. In this case, the blower 60 is attached to the upper end of the pipe 210, and the nozzle 213
Furthermore, by providing a plurality of injection ports 213s that communicate between the inside of the pipe 210 and the outside of the nozzle, and injecting air or oxygen during the mechanical pushing-down operation, the pushing-down effect can be further enhanced.
一方固定バーナ２２は、ランスケーシング２３
に固定したつぼ２８に載置された環状管２９の下
部にほぼ対称的に６個立設されている。環状管２
９及び固定バーナ２２は共に２重管からなり、
夫々の内管２９１及び２２１は燃料用配管であ
り、外管２９２及び２２２は空気用配管であり、
しかも夫々の内管同士及び外管同士は互いに連通
している。そして環状管２９の一部に設けられた
分岐管３０ａ及び３０ｆには、熱交換器７０から
の空気配管及び燃料タンク５１からの燃料配管が
夫々に接続されている。 On the other hand, the fixed burner 22 has a lance casing 23
Six pieces are erected approximately symmetrically at the bottom of an annular tube 29 placed on a pot 28 fixed to. Annular tube 2
9 and the fixed burner 22 are both made of double pipes,
Each of the inner pipes 291 and 221 is a fuel pipe, and the outer pipe 292 and 222 is an air pipe,
Moreover, the inner tubes and the outer tubes are in communication with each other. Branch pipes 30a and 30f provided in a part of the annular pipe 29 are connected to an air pipe from a heat exchanger 70 and a fuel pipe from a fuel tank 51, respectively.
以上の様に構成された燃焼装置２０のランス２
１及び固定バーナ２２ａ，２２ｂ，…が夫々溶融
炉上部の耐火壁１１の貫通孔１１１及び貫通孔１
１２ａ，１１２ｂ，…に挿入配置されて溶融炉上
部の構造を特徴づけている。 Lance 2 of the combustion device 20 configured as above
1 and the fixed burners 22a, 22b, ... are respectively connected to the through hole 111 of the refractory wall 11 in the upper part of the melting furnace and the through hole 1.
12a, 112b, . . . to characterize the structure of the upper part of the melting furnace.
尚、溶融スラグ３１を再燃焼室７から水冷槽８
に導びく為の連通孔７ｄでは、水冷槽８方向への
放熱によつて溶融スラグ３１が冷却凝固し易いの
で、該連通口７ｄを指向する補助バーナ７ｂを設
け、火炎の放射によつて溶融スラグ３１を董補助
加熱し、水冷槽８方向への流れを円滑にし、該連
通孔７ｄの目詰りを防止する構成にすることが推
奨される。 The molten slag 31 is transferred from the re-combustion chamber 7 to the water cooling tank 8.
Since the molten slag 31 is easily cooled and solidified in the communication hole 7d for leading to the water cooling tank 8 due to heat radiation toward the water cooling tank 8, an auxiliary burner 7b is provided pointing toward the communication hole 7d, and the molten slag 31 is melted by the radiation of flame. It is recommended that the slag 31 be auxiliary heated to ensure smooth flow in the direction of the water cooling tank 8 and to prevent clogging of the communication hole 7d.
さてホツパー１５から溶融炉１０内に投入さた
廃棄物Ｗは、炉床１３を排出口１２に向けて移動
する間に固定バーナ２２ａ，２２ｂ…の発する火
炎及びその幅射熱によつて加熱され、溶融状の廃
棄物即ち溶融スラグ３１となつて落下する。この
場合固定バーナ２２ａ，２２ｂ，…は火炎室１６
の上部周方向にほぼ対称的に設けられているの
で、炉床面上の廃棄物の厚さに部分分的変化があ
つても火炎室１６内の温度分布はほぼ均一に維持
されており、しかも高温度を呈する各火炎先端は
等しく炉床下部全周面上に近接するので、該面上
の火炎室内温度は完全に且つ均一に溶融点以上に
昇温維持されることになる。その結果、炉床下部
全周面上の廃棄物は完全に且つ均一に溶融されて
溶融スラグ３１となり、排出口１２の内周壁１２
ｗを流下する。従つて少なくとも排出口１２の内
周壁上部において、溶融スラグ３１が固化して付
着する現象は皆無となる。 The waste W fed from the hopper 15 into the melting furnace 10 is heated by the flames and radiant heat emitted by the stationary burners 22a, 22b, etc. while moving along the hearth 13 toward the discharge port 12, and falls as molten waste, i.e., molten slag 31. In this case, the stationary burners 22a, 22b, etc.
Since the upper flares are arranged almost symmetrically in the circumferential direction, the temperature distribution in the flame chamber 16 is maintained almost uniform even if the thickness of the waste on the hearth surface changes partially, and since the high-temperature flame tips are equally close to the entire peripheral surface of the lower hearth, the temperature in the flame chamber on said surface is completely and uniformly raised to above the melting point and maintained. As a result, the waste on the entire peripheral surface of the lower hearth is completely and uniformly melted into molten slag 31, and the waste is melted completely and uniformly into molten slag 32 on the inner peripheral wall 12 of the discharge port 12.
Therefore, at least at the upper part of the inner peripheral wall of the discharge port 12, the phenomenon of the molten slag 31 solidifying and adhering to it is completely eliminated.
しかし前述した様に、排出口１２に接続された
再燃焼室７の受け口４１内部は構造上溶融点以下
の温度雰囲気である為に、排出口内周壁を流下す
る溶融スラグ３１の一部は冷却凝固し、該壁下部
に付着推積して塊状凝固物３２を形成する。そし
て炉操業の継続に伴い、この凝固物３２は成長肥
大し遂には排出口１２をふさぐに至る。 However, as described above, since the inside of the receptacle 41 of the afterburning chamber 7 connected to the discharge port 12 is structurally in a temperature atmosphere below the melting point, a part of the molten slag 31 flowing down the inner circumferential wall of the discharge port cools and solidifies. Then, it adheres to the lower part of the wall and forms a lumpy coagulum 32. As the furnace operation continues, this coagulated material 32 grows and enlarges until it finally blocks the discharge port 12.
しかるに本考案では、以下に示す如くランス２
１によつて、排出口１２の閉塞を防止することが
できる。即ち排出口１２が前述の様な状態で目詰
まりを起こした時には、操業の続行に伴つて火炎
室１６内に生じる圧力変化又は温度変化を、溶融
炉１０の外周壁１４に設けられた火炎室内監視用
のセンサー１７によつて検知し、制御装置９０に
目詰まり信号を送る。該信号を受信した制御装置
９０は駆動装置２５に対して作動開始信号を発す
る。駆動装置２５の作動によりランス２１は下降
し、先端部に設けられたノズル２１３が目詰まり
状態を形成している凝固物３２を突き落とすこと
によつて排出口１２の目詰まりを防止することが
できる。しかし、この突き落としだけでは不十分
な場合には、前記作動開始信号をブロワ６０にも
送り、ランス２１の下降と共にノズル２１３に設
けられた複数の噴射口２１３ｓより空気を噴射す
ることにより、より確実に目詰まりを防止し、し
かも拝出口１２を筒形に矯正することができる。 However, in the present invention, as shown below, the lance 2
1 can prevent the discharge port 12 from being blocked. That is, when the discharge port 12 becomes clogged as described above, the pressure change or temperature change that occurs in the flame chamber 16 as the operation continues is absorbed by the flame chamber provided on the outer peripheral wall 14 of the melting furnace 10. It is detected by the monitoring sensor 17 and sends a clogging signal to the control device 90. The control device 90 that has received the signal issues an operation start signal to the drive device 25. The lance 21 is lowered by the operation of the drive device 25, and the nozzle 213 provided at the tip pushes down the coagulated material 32 forming the clogged state, thereby preventing clogging of the discharge port 12. . However, if this push-off alone is insufficient, the operation start signal is also sent to the blower 60, and as the lance 21 descends, air is injected from the plurality of injection ports 213s provided in the nozzle 213, thereby making it more reliable. clogging can be prevented, and the opening 12 can be corrected into a cylindrical shape.
上記の様な操作により目詰まりが完全に解消さ
れて、火炎室１６内の圧力又は温度が再び正常時
の値に戻つたこととセンサー１７が検知し確認す
ると、再び制御装置９０を介してランス２１を定
位置まで上昇させて、又ブロワ６０からの通気を
停止して目詰まりの解消作業が終了する。 When the sensor 17 detects and confirms that the clogging has been completely eliminated by the above operation and the pressure or temperature inside the flame chamber 16 has returned to its normal value, the control device 90 again sends the lance 21 to the normal position, and the ventilation from the blower 60 is stopped to complete the clogging removal work.
第４図は本考案に係る他の実施例を示すもの
で、ランス２１にバーナとしての機能を兼備させ
た例を示している。即ち第４図においてランス２
１は内管２１１と外管２１２の２重管からなつて
おり、この内管２１１と外管２１２とで形成され
る環状すき間Ｒ内に空気（必要に応じて酸素）が
導入される。またランス先端部には耐熱性のノズ
ル２１３が設けられているが、該ノズル２１３は
第５図に示す様に内部に空洞部２１３ｈを有する
と共に、この空洞部２１３ｈと内管２１１及び空
気流路Ｒとを連通する燃料孔２１３ｆ及び空気孔
２１３ａが設けられ、更に空洞部２１３ｈと外部
を連通する噴射口ノズル２１３ｓが設けられてい
る。 FIG. 4 shows another embodiment of the present invention, in which the lance 21 also has the function of a burner. That is, in Fig. 4, lance 2
1 consists of a double tube consisting of an inner tube 211 and an outer tube 212, and air (oxygen as necessary) is introduced into an annular gap R formed by the inner tube 211 and outer tube 212. Furthermore, a heat-resistant nozzle 213 is provided at the tip of the lance, and as shown in FIG. A fuel hole 213f and an air hole 213a are provided which communicate with R, and an injection port nozzle 213s which communicates the cavity 213h with the outside is further provided.
更に２重管のランスケーシング外上方に設けら
れた分岐管２６にはフレキシブル２重管２７が取
り付けられ、ランス２１が下降した際にもブロワ
６０及び燃料タンク５０から夫々空気及び燃料が
確実に供給される様に構成されている。 Furthermore, a flexible double pipe 27 is attached to a branch pipe 26 provided above the outside of the double pipe lance casing, and even when the lance 21 is lowered, air and fuel are reliably supplied from the blower 60 and fuel tank 50, respectively. It is configured so that
従つてランス２１の内管２１１に予備の燃料タ
ンク５０から燃料を送ることによつて、ノズル２
１３はいわゆる火炎放射器の役割を果たすことに
なり、排出口１２下部に凝固物がきかに堅固な状
態で付着している場合であつても、再び溶融して
流下させることができる。 Therefore, by supplying fuel from the spare fuel tank 50 to the inner pipe 211 of the lance 21, the nozzle 2
The nozzle 13 functions as a flame thrower, and even if the solidified matter adheres to the lower part of the outlet 12 in a very firm state, it can be melted again and made to flow down.
即ち、例えば炉操業を一時若しくは長期に亘つ
て休止させた後再開するときには、完全凝固した
スラグが拝出口１２の内壁に強固に付着してお
り、衝撃力や空気圧等による除去は殆んど不可能
であるが、上記のランス２１を降下させて加熱を
行なえば凝固スラグを容易に再溶融させることと
ができ、操業再開を容易にすることができる。 That is, for example, when the furnace operation is restarted after a temporary or long-term suspension, the completely solidified slag is firmly attached to the inner wall of the outlet port 12, and removal by impact force, air pressure, etc. is almost impossible. Although it is possible, if the lance 21 is lowered and heated, the solidified slag can be easily remelted and restarting the operation can be facilitated.
即ち、第５図はこの時の状態を示す拡大概略断
面図であり、ランス２１の内管２１１を通して送
られてきた燃料及び外管２１２を通して送られて
た空気か夫々予備燃料孔２１３ｆ及び空気孔２１
３ａによつて高速流で空洞部２１３ｈ内に供給さ
れることにより気液混合されていわゆる噴霧燃料
とされる。この噴霧燃料がノズル２１３の下部に
放射状に設けられた複数の噴射は２１３ｓから噴
射されると、外部の高温熱により放射状の火炎を
形成する。その結果凝固物３２はこの放射状火炎
及びその幅射熱を受けて溶融落下し、排出口１２
が正常時の状態に復帰する。 That is, FIG. 5 is an enlarged schematic sectional view showing the state at this time, in which the fuel sent through the inner pipe 211 of the lance 21 and the air sent through the outer pipe 212 are connected to the preliminary fuel hole 213f and the air hole, respectively. 21
3a in a high-speed flow into the cavity 213h, the fuel is mixed with gas and liquid to form a so-called atomized fuel. When the atomized fuel is injected from 213s to the plurality of jets provided radially at the bottom of the nozzle 213, a radial flame is formed due to external high-temperature heat. As a result, the solidified material 32 receives this radial flame and its radial heat, melts and falls, and the discharge port 12
returns to its normal state.
本考案は概略以上の如く構成されるが、要は火
炎室中心上部に垂直昇降自在のランスを設けると
共に、該ランスの周囲に複数の固定用燃焼バーナ
２をほぼ対称的に配設する様にしたので、
火炎室内部（特に炉床下部全周面上）の温度
を完全に且つ均一に溶融点以上に維持すること
ができ、その結果炉内を流下する廃棄物の完全
均一溶融化を図ることができた。 The present invention is roughly constructed as described above, but the key point is that a lance that can be vertically raised and lowered is provided at the upper part of the center of the flame chamber, and a plurality of fixed combustion burners 2 are arranged approximately symmetrically around the lance. Therefore, the temperature inside the flame chamber (especially on the entire circumferential surface of the lower part of the hearth) can be maintained completely and uniformly above the melting point, and as a result, the waste flowing down inside the furnace can be completely and uniformly melted. I was able to do that.
排出口の目詰まりを完全に防止することがで
き、その結果溶融炉操業の安定化を図り、溶融
炉の機能を正常に維持することができた。 It was possible to completely prevent clogging of the discharge port, and as a result, it was possible to stabilize the operation of the melting furnace and maintain the normal functioning of the melting furnace.
第１図は従来の溶融炉を示す概略説明図、第２
図は本考案に係る溶融炉を例示する概略説明図、
第３図は第２図の−線断面図、第４図は本考
案で使用する他のランスを示す説明図、第５図は
ランス２１の内管２１１に燃料を供給してキヤツ
プ周辺に火炎を形成させた時の排出口の状態を示
す拡大概略断面図である。
１０……溶融炉、１１……溶融炉上部耐火壁、
１２……排出口、１３……炉床、１４……溶融炉
外周壁、１５……ホツパー、１６……火炎室、１
７……センサー、２０……燃焼装置、２１……ラ
ンス、２２（２２ａ，２２ｂ）……固定バーナ、
２３……ランスケーシング、２４……ベアリン
グ、２５……駆動装置、２６，３０ａ，３０ｆ…
…分岐管、２７……フレキシブル２重管、２８…
…つば、２９……環状管、５０，５１……燃料タ
ンク、６０，８０……ブロワ、７０……熱交換
器、９０……制御装置。
Figure 1 is a schematic explanatory diagram showing a conventional melting furnace, Figure 2
The figure is a schematic explanatory diagram illustrating a melting furnace according to the present invention,
FIG. 3 is a sectional view taken along the - line in FIG. 2, FIG. 4 is an explanatory diagram showing another lance used in the present invention, and FIG. FIG. 4 is an enlarged schematic cross-sectional view showing the state of the discharge port when the discharge port is formed. 10... Melting furnace, 11... Melting furnace upper fireproof wall,
12... Discharge port, 13... Hearth, 14... Melting furnace outer peripheral wall, 15... Hopper, 16... Flame chamber, 1
7...Sensor, 20...Combustion device, 21...Lance, 22 (22a, 22b)...Fixed burner,
23... Lance casing, 24... Bearing, 25... Drive device, 26, 30a, 30f...
...Branch pipe, 27...Flexible double pipe, 28...
...Brim, 29...Annular pipe, 50, 51...Fuel tank, 60, 80...Blower, 70...Heat exchanger, 90...Control device.
Claims (1)
ラグ排出口を有し、その下方に溶融スラグ水冷槽
を配置してなる溶融処理装置において、溶融スラ
グ排出口をはさんでほぼ対称的に複数の固定燃焼
バーナを配設すると共に、該溶融炉の火炎室中心
上部に、前記排出口と同芯的に、且つ垂直昇降自
在のランスを設け、該ランスには、液体燃料供給
路と空気供給路を内蔵し、該ランスの下側先端に
はノズルを設け上記燃料と空気を混合して噴射で
きる様に構成してなることを特徴とする廃棄物溶
融処理装置。 In a melting processing equipment that has a molten slag discharge port approximately in the center of the bottom of the rotary melting furnace for waste, and a molten slag water cooling tank below it, the molten slag discharge port is arranged almost symmetrically across the molten slag discharge port. A plurality of fixed combustion burners are arranged, and a lance is provided at the upper center of the flame chamber of the melting furnace, which is concentric with the discharge port and can be vertically moved up and down, and the lance has a liquid fuel supply path and an air 1. A waste melting treatment apparatus, comprising a built-in supply path, and a nozzle provided at the lower end of the lance so that the fuel and air can be mixed and injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981035804U JPS6119309Y2 (en) | 1981-03-14 | 1981-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981035804U JPS6119309Y2 (en) | 1981-03-14 | 1981-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57150330U JPS57150330U (en) | 1982-09-21 |
| JPS6119309Y2 true JPS6119309Y2 (en) | 1986-06-11 |
Family
ID=29833056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981035804U Expired JPS6119309Y2 (en) | 1981-03-14 | 1981-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6119309Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245427A (en) * | 1975-09-11 | 1977-04-09 | Keiper Trainingsysteme Gmbh | Muscular strength meter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842748Y2 (en) * | 1978-03-14 | 1983-09-28 | 株式会社クボタ | incinerator |
-
1981
- 1981-03-14 JP JP1981035804U patent/JPS6119309Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245427A (en) * | 1975-09-11 | 1977-04-09 | Keiper Trainingsysteme Gmbh | Muscular strength meter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57150330U (en) | 1982-09-21 |
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