JPS61195209A - Dry distillation furnace for waste oil and the like - Google Patents

Abstract

PURPOSE:To prevent explosion due to dry distillation gas by installing air supply holes and inert gas injection holes in such a manner that at a bent part of a distillation furnace the air supply holes are formed and inert gas injection holes are also formed to inject gas toward a discharge path. CONSTITUTION:A lower part of a vertical part 1a in a dry distillation furnace 1 is bent almost horizontally and connected to a discharge path 3. At inner side of a bent part 1b of the dry distillation furnace 1 air supply holes 5 are opened to supply air of which amount is only sufficient to burn locally solid carbon near the holes in the furnace and at the outer side of the bent part 1b, inert gas injection holes 12 are also opened to inject inert gas toward a discharge path 3. As a result, ashes are gradually discharged toward the discharge path 3 with no cave-in of a solid carbon layer accumulated in the furnace.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、米糖油の採湯残漬等の廃油を焼却することを
主目的とする乾留炉に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a carbonization furnace whose main purpose is to incinerate waste oil such as rice sugar oil leftover from boiling water.

（従来の技術） 米糖油の残渣等はこれを直接燃焼させて焼却しようとし
ても燃焼せず、しかも該燃焼によって炉内にタリンカが
発生し炉を損傷するの不都合を生じる。(Prior Art) Residues of rice sugar oil, etc. will not burn even if they are tried to be incinerated by direct combustion, and furthermore, the combustion will cause the inconvenience of generating tarinka in the furnace and damaging the furnace.

そこでコークス等の固形燃料を炉の下部で燃焼させ、そ
の燃気を該固形炭素層を通してその上部の乾留部に供給
し該燃気の保有する熱によって該乾留部に供給される廃
油を乾留させた後これを外部の燃焼滓に供給して燃焼さ
せる方法が取られるようになった。しかしこのものは、
固形燃料層が燃焼につれて漸次均一に下降すれば良いが
、部分的にくづれを生じこれによれば、固形燃料層内に
空胴を生じ、該空胴を通じて燃焼部に供給される空気の
一部が乾留部に及び、該乾留部で爆発的な燃焼を生じる
の危険がある。Therefore, solid fuel such as coke is burned in the lower part of the furnace, and the fuel gas is supplied to the carbonization section in the upper part through the solid carbon layer, and the waste oil supplied to the carbonization section is carbonized using the heat held by the combustion gas. A method of feeding this to external combustion slag and burning it began to be adopted. But this one is
It is sufficient that the solid fuel layer gradually and uniformly descends as it burns, but if the solid fuel layer collapses partially, a cavity is created in the solid fuel layer, and a portion of the air supplied to the combustion section through the cavity. There is a risk of explosive combustion occurring in the carbonization section.

（発明が解決しようとする問題点） 本発明はか）る危険のない廃棄油等の乾留炉を得ること
をその目的とする。(Problems to be Solved by the Invention) An object of the present invention is to obtain a carbonization furnace for waste oil, etc., which is free from the danger of deterioration.

（問題点を解決するための手段） 本発明は、廃油等をコークス等の固形炭素を燃料とする
筒状燃焼炉の上部空間に形成される乾留部に供給して乾
留する式のものに於いて、該乾留炉を垂直胴部の下部を
略水平方向に彎曲させて構成し、その下端部を燃焼滓の
送出路に連通させ、且つ該乾留炉の屈曲部内側に、空気
供給口を設けて、該空気供給口開口近傍の炉内で固形酸
素が極部燃焼するに必要な空気量を供給すると共に該屈
曲部外側に不活性ガスを送出路側に向って噴出させる噴
出口を開口させたことを特徴とする。(Means for Solving the Problems) The present invention is of a type that carbonizes waste oil by supplying it to a carbonization section formed in the upper space of a cylindrical combustion furnace that uses solid carbon such as coke as fuel. The carbonization furnace is constructed by curving the lower part of the vertical body in a substantially horizontal direction, the lower end thereof is communicated with the combustion slag delivery path, and an air supply port is provided inside the bent part of the carbonization furnace. Then, an amount of air necessary for local combustion of solid oxygen is supplied in the furnace near the opening of the air supply port, and a jet port is opened outside the bent portion to jet inert gas toward the delivery path side. It is characterized by

（実施例）。(Example).

本発明実施の１例を別紙図面につき説明する。An example of implementing the present invention will be explained with reference to the attached drawings.

図面で（１）は乾留炉を示し、該乾留炉（１）は垂直胴
部（１ａ）の下部を略水平方向に彎曲する彎曲部（１ｂ
）を備えた全体として略し字状を呈するものに構成する
と共に、下部は漸次その経が減少するものに構成させ、
乾留炉（１）の下部はこれをスクリューコンベヤ（２）
を備える燃焼滓を排出する送出路（３）と連通させる。In the drawing, (1) indicates a carbonization furnace, and the carbonization furnace (1) has a curved part (1b) that curves the lower part of the vertical body part (1a) in an approximately horizontal direction.
) with an abbreviated shape as a whole, and the lower part has a gradually decreasing diameter,
The lower part of the carbonization furnace (1) is connected to a screw conveyor (2).
and a delivery path (3) for discharging combustion slag.

（４）は、該乾留炉（１）の上部に設けた該炉（１）内
にコークス等の固形炭素を供給用のホッパを示し、該ホ
ッパ（４）を介して常に炉（１）にその上部に所望の空
間を存して状態に堆積するごとく固形炭素を供給する。(4) indicates a hopper for supplying solid carbon such as coke into the furnace (1), which is installed in the upper part of the carbonization furnace (1), and is constantly supplied to the furnace (1) through the hopper (4). Solid carbon is supplied so that it is deposited in a desired space above it.

（５）は該炉〈１）の彎曲部内側に位置させて設けた空
気供給口群を示し、該空気供給口群（５）から送ｍ　ｍ
　（６）によって該供給口（９の開口部近傍に位置する
炉（１）内の限られた部分でのみ固形炭素が燃焼するに
充分の空気を供給して堆積する固形炭素の一部でこれを
燃焼させる。(5) indicates a group of air supply ports located inside the curved part of the furnace (1), and m m is supplied from the air supply port group (5).
This part of the solid carbon is deposited by supplying enough air to burn the solid carbon only in a limited area of the furnace (1) located near the opening of the supply port (9). burn.

（７）は該炉（１）向上部空間に臨みこれに水分を含む
廃油等を噴射させる噴射ノズル、（８）は該噴射ノズル
（７）と廃油タンク（図示しない）を結ぶ給油路、（９
）はこれに介在させたポンプを示し、該ポンプ（９）に
よって噴射ノズル（Ｄから噴射される廃油等は前記固形
炭素の燃焼熱によって蒸焼き状態にすると該廃油に含ま
れる揮発分が揮発し、これが乾燥路（１）に接続した導
管（ＩＯを介してバーナａＤに供給され焼却される。(7) is an injection nozzle that faces the upper space of the furnace (1) and injects water-containing waste oil, etc.; (8) is an oil supply path that connects the injection nozzle (7) and a waste oil tank (not shown); 9
) indicates a pump interposed therein, and when the waste oil, etc. injected from the injection nozzle (D) by the pump (9) is evaporated by the combustion heat of the solid carbon, the volatile content contained in the waste oil is evaporated. , this is supplied to the burner aD via a conduit (IO) connected to the drying path (1) and is incinerated.

（Ｉ２）は該乾燥炉（１）の彎曲部外側に位置させて、
送出路ｑ３側に向って不活性ガスを噴出する噴出口を示
し、該噴出口ａｂから噴出する不活性ガスを前記バーナ
ａ１の炭素ガスを大量に含む燃焼排ガスとするときは、
該炭素ガスが炉（１）内で固形炭素を接触して一酸化炭
素となる吸熱反能を生じて該炉（１）の下部を冷却する
作用を生じ、これによれば、灰を冷す作用を行なって灰
が融解してクリンカを生じる等の不都合を生じることが
なく有利である。(I2) is located outside the curved part of the drying oven (1),
When the inert gas ejected from the ejection port ab is the combustion exhaust gas containing a large amount of carbon gas from the burner a1,
The carbon gas contacts solid carbon in the furnace (1) to produce an endothermic reaction that turns into carbon monoxide, which produces an effect of cooling the lower part of the furnace (1), thereby cooling the ash. This is advantageous because it does not cause problems such as melting of ash and formation of clinker.

尚、図面で０３は前記空気供給口（５）を施した部分近
傍に設けた重油バーナその他の着火バーナ、ａ４１は該
着火バーナ０３の燃焼用空気供給口、ａＳは前記燃焼排
ガスを噴出口（１２に導くための導管ａθに介在させた
送風機である。In the drawing, 03 is a heavy oil burner or other ignition burner provided near the part where the air supply port (5) is provided, a41 is a combustion air supply port of the ignition burner 03, and aS is a spout port (a) for discharging the combustion exhaust gas. This is an air blower interposed in a conduit aθ for guiding the air to 12.

（作用） 次に本装置の作動を説明する。(effect) Next, the operation of this device will be explained.

今炉（１〉内に所望の最の固形炭素を充した状態で着火
バーナａ３により固形炭素の一部に着火させ、送風Ｒ（
６）により空気を噴出口（５）から炉（１）内に供給す
るときは、固形炭素は、その彎曲内側部の限られた部分
で燃焼が始まる。そして高温となった燃焼ガスは固形炭
素の層の間を通って上部空間に及ぶ。従ってこのとき炉
＜１）の上部に廃油をノズル（７）から噴霧するときは
、該廃油はその熱によって揮発し、導管（ＩＧを介して
バーナ（Ｉｔ）により焼却される。Now, with the furnace (1) filled with the desired amount of solid carbon, a part of the solid carbon is ignited by the ignition burner a3, and the air blower R (
When air is supplied into the furnace (1) from the jet nozzle (5) according to step 6), combustion of the solid carbon starts in a limited portion on the inside of the curve. The heated combustion gas then passes between the layers of solid carbon and reaches the upper space. Therefore, when waste oil is sprayed from the nozzle (7) onto the upper part of the furnace <1), the waste oil is volatilized by the heat and is incinerated by the burner (It) via the conduit (IG).

このバーナ（ｌｖの排ガスを前記炉（１）の彎曲外側に
設けた噴出口（１２）から送出路（３）側に向って噴射
させるときは、その噴出力によって該炉（１）内で燃焼
された灰分は漸次送出路（３）側に移１Ｉｉ７Ｉす゛る
。When the exhaust gas of this burner (lv) is injected toward the delivery path (3) side from the jet port (12) provided on the outside of the curve of the furnace (1), it is combusted in the furnace (1) by its jet force. The ash content is gradually transferred to the delivery path (3) side.

従って堆積する固形炭素層は部分的に陥没するようなこ
となく一様に漸次降下する。Therefore, the solid carbon layer deposited uniformly and gradually descends without any partial collapse.

そして廃油等に含まれる鉱物質が撓きかたまった塊即ち
クリンカーも該灰と共に排出される。Clinker, which is a loose lump of mineral substances contained in waste oil, etc., is also discharged together with the ash.

従って、炉壁にこれが剛着して炉壁を傷める等の不都合
もない。Therefore, there is no inconvenience such as sticking firmly to the furnace wall and damaging the furnace wall.

（発明の効果） このように本発明によるときは、乾留炉を垂直部の下部
を略水平方向に彎曲させて構成し、その下端部を燃焼滓
の送出路に連通させ、且つ該乾留炉の屈曲部内側に、該
部近傍の炉内で固形炭素が極部燃焼するだけの空気量を
供給する空気供給口を開口させると共に、該屈曲部外側
に不活性ガスを送出路側に向って噴出させる噴出口を開
口させたので、該炉内に堆積する固形炭素層陥没させる
ようなことなく、灰を漸次送出路側に排出させることが
出来、これによって該固形炭素の層を介して燃焼燃気の
みを該炉の乾留部に供給出来、これによって従来例に見
られるごとく、固形炭素を燃焼させる空気の１部が乾留
部に流入して乾留ガスが炉内で瞬時に燃焼する等の不都
合を解消できるの効果がある。(Effects of the Invention) According to the present invention, the carbonization furnace is configured such that the lower part of the vertical part is curved in a substantially horizontal direction, and the lower end thereof is communicated with the combustion slag delivery path, and the carbonization furnace is An air supply port is opened on the inside of the bent portion to supply an amount of air sufficient to cause the solid carbon to burn locally in the furnace near the bent portion, and an inert gas is blown out toward the delivery path on the outside of the bent portion. Since the spout is opened, the ash can be gradually discharged to the delivery path side without causing the solid carbon layer deposited in the furnace to collapse, thereby allowing only the combustion fuel to flow through the solid carbon layer. It can be supplied to the carbonization section of the furnace, thereby eliminating the inconveniences seen in conventional examples, such as a part of the air that burns solid carbon flowing into the carbonization section and the carbonization gas burning instantly in the furnace. There is an effect.

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

図面は本発明実施の１例の截断側面図である。 The drawing is a cutaway side view of one example of carrying out the present invention.

Claims (1)

【特許請求の範囲】[Claims] 廃油等をコークス等の固形炭素を燃料とする筒状燃焼炉
の上部空間に形成される乾留部に供給して乾留する式の
ものに於いて、該乾留炉を垂直胴部の下部を略水平方向
に彎曲させて構成し、その下端部を燃焼滓の送出路に連
通させ、且つ該乾留炉の屈曲部内側に、空気供給口を設
けて、該空気供給口開口近傍の炉内で固形酸素が極部燃
焼するに必要な空気量を供給すると共に該屈曲部外側に
不活性ガスを送出路側に向って噴出させる噴出口を開口
させたことを特徴とする廃棄油等の乾留炉。In a type that carbonizes waste oil by supplying it to a carbonization section formed in the upper space of a cylindrical combustion furnace that uses solid carbon such as coke as fuel, the carbonization furnace is installed with the lower part of the vertical body section approximately horizontal. The lower end of the carbonization furnace is curved in a direction, and its lower end is connected to the combustion slag delivery path, and an air supply port is provided inside the bent portion of the carbonization furnace, so that solid oxygen is supplied in the furnace near the air supply port opening. What is claimed is: 1. A carbonization furnace for waste oil, etc., characterized in that an amount of air necessary for local combustion of oil is supplied, and a spout is opened on the outside of the bent portion for spouting inert gas toward the delivery path side.