JP4924913B2 - Opening and closing device for ash melting furnace - Google Patents

Opening and closing device for ash melting furnace Download PDF

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JP4924913B2
JP4924913B2 JP2004315510A JP2004315510A JP4924913B2 JP 4924913 B2 JP4924913 B2 JP 4924913B2 JP 2004315510 A JP2004315510 A JP 2004315510A JP 2004315510 A JP2004315510 A JP 2004315510A JP 4924913 B2 JP4924913 B2 JP 4924913B2
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ash melting
outlet
opening
closing
tap
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JP2006125749A (en
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博 植田
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Tokai Konetsu Kogyo Co Ltd
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Description

本発明は、産業廃棄物や都市ごみを溶融する灰溶融炉において、溶融物の出湯口を開閉するための灰溶融炉の出湯口開閉装置に関する。   TECHNICAL FIELD The present invention relates to an outlet opening / closing device for an ash melting furnace for opening / closing an outlet for molten material in an ash melting furnace for melting industrial waste and municipal waste.

従来、灰溶融炉の出湯口を閉鎖する方式は、操炉前に出湯口を耐火煉瓦などからなる栓で閉鎖して溶融を開始し、溶融物が一定量溜まった時点で出湯口を閉鎖している栓を壊して出湯口を開口して出湯し、溶融物を完全に排出した後、つぎの操炉作業を行っていた。   Conventionally, the method of closing the outlet of the ash melting furnace is to start melting by closing the outlet with a stopper made of refractory bricks before the operation, and when the molten material has accumulated a certain amount, the outlet is closed. After breaking the stopper, the hot water outlet was opened and the hot water was discharged, and after the molten material was completely discharged, the next furnace operation was performed.

つぎの操炉に際しては、出湯口に再び栓を装着して溶融、出湯を繰り返していたが、出湯に当たり、栓をドリルなどで壊す作業を繰り返すことで出湯口の損傷が激しくなり、操炉中に湯漏れが生じて、出湯口の補修、栓の交換にみでなく、溶融ルツボの交換も余儀なくされていた。また、湯漏れが生じた場合には、危険が伴うため、絶えず監視が必要であった。   During the next operation, the tap was reattached to the tap and melted and repeated. However, repeated taping and breaking the plug with a drill, etc. caused severe damage to the tap, As a result, a hot water leak occurred and the melting crucible had to be replaced in addition to repairing the tap and replacing the stopper. In addition, when hot water leaks, there is a danger, so it was necessary to constantly monitor it.

このような問題を解決するために、黒鉛粉に水を添加した湿態黒鉛粉を圧入ポンプを介して出湯口に圧入する方式も提案されている（特許文献１）が、十分な解決策にはなっていない。
特開平１１−１４２６８号公報 In order to solve such a problem, a method in which wet graphite powder obtained by adding water to graphite powder is press-fitted into a tap through a press-fitting pump has been proposed (Patent Document 1), but it is a sufficient solution. It is not.
Japanese Patent Laid-Open No. 11-14268

本発明は、灰溶融炉の出湯口の閉鎖、開口における上記従来の問題点を解消するためになされたものであり、その目的は、出湯口を湯漏れを生じることなく容易に閉鎖することができ且つ閉鎖された出湯口を出湯口を損傷することなく容易に開口することができて、出湯口からの溶融物の排出を途中で止めて、自由に出湯、出湯停止を行うことを可能とする灰溶融炉の出湯口開閉装置を提供することにある。   The present invention has been made in order to solve the above-mentioned conventional problems in closing and opening the outlet of an ash melting furnace, and its purpose is to easily close the outlet without causing leakage. The outlet can be opened easily without damaging the outlet, and the discharge of the melt from the outlet can be stopped on the way, allowing free hot water and hot water to be stopped. An object of the present invention is to provide an outlet opening / closing device for an ash melting furnace.

上記の目的を達成するための請求項１による灰溶融炉の出湯口開閉装置は、電気炉内に灰溶融用ルツボを設置し、電気炉の炉壁と灰溶融用ルツボの間の空間に黒鉛ヒータを配設し、灰溶融用ルツボの底部に横方向に出湯口を設けてなり、灰溶融用ルツボの上方から処理物を装入して操炉作業を行う灰溶融炉の出湯口を灰溶融炉の外側から開閉する装置であって、灰溶融炉の灰溶融用ルツボに設けられた出湯口を開閉するための円弧状の先端部をそなえた開閉栓と、開閉栓を出湯口に向けて移動させまたは出湯口から離れるように移動させるための開閉栓の軸方向に接続された加圧シリンダと、開閉栓を回転させるためのギア装置と、ギア装置を作動させるための回転モータをそなえ、回転モータの作動によりギア装置を介して開閉栓を回転させるとともに、開閉栓を加圧シリンダにより出湯口へ移動させ、出湯口に対して開閉栓を摺動回転させて押圧し出湯口を閉鎖するようにし、加圧シリンダを作動させ、開閉栓を先端部が出湯口から後退するように移動させ出湯口を開口するよう構成したことを特徴とする。 In order to achieve the above object, a tapping device for an ash melting furnace according to claim 1 is provided with an ash melting crucible installed in an electric furnace, and graphite in a space between the furnace wall of the electric furnace and the ash melting crucible. ash disposed a heater, it is provided a tap hole in the transverse direction on the bottom of the crucible for ash melting, the outflow position of the ash melting furnace for possible furnace operation work was charged with treated from above the crucible for ash melting A device that opens and closes from the outside of the melting furnace, and has an arc-shaped tip for opening and closing the hot water outlet provided in the ash melting crucible of the ash melting furnace, and the open / close tap facing the hot water outlet A pressure cylinder connected in the axial direction of the opening / closing plug for moving the valve or moving away from the tap, a gear device for rotating the opening / closing plug, and a rotation motor for operating the gear device Rotating the stopper through the gear device by the operation of the rotary motor At the same time, the opening / closing stopper is moved to the outlet by the pressure cylinder, and the opening / closing stopper is slid and rotated against the outlet to close the outlet. The part is moved so as to retreat from the outlet, and the outlet is opened.

請求項２による灰溶融炉の出湯口開閉装置は、請求項１において、前記出湯口を構成する材質と前記開閉栓を構成する材質が黒鉛であることを特徴とする。 According to a second aspect of the present invention, there is provided a tapping device for an outlet of an ash melting furnace according to the first aspect, wherein the material constituting the tapping port and the material constituting the on-off plug are graphite .

本発明の灰溶融炉の出湯口開閉装置においては、出湯口を湯漏れを生じることなく容易に閉鎖することができるから、湯漏れ防止対策は不要となって安全性が高まり、また、閉鎖された出湯口を出湯口を損傷することなく容易に開口することができるから、出湯口の補修が不要または補修のインターバルが長くなり、経済性の効果が得られる。   In the outlet opening / closing device for the ash melting furnace of the present invention, the outlet can be easily closed without causing leakage of the hot water. Since the outlet can be opened easily without damaging the outlet, repair of the outlet is unnecessary or the repair interval becomes longer, and an economic effect is obtained.

出湯口からの溶融物の排出を途中で止めることが容易となり、自由に出湯、出湯停止を行うことをできるから、操炉の自由度が増大するとともに、従来は、溶融物を完全に排出した後、つぎの操炉作業を行っていたのに対して、炉内に溶融物を残して出湯を停止し、つぎの処理物を装入することができるため、処理物への熱の伝導が早くなり、効率良く溶融処理を行うことができ、栓の不具合で十分に溶融していない溶融物（スラグ）が排出されることはなく、生成されるスラグの均一性が高まるから、生成されたスラグは再利用、再資源化し易くなる。   It becomes easy to stop the discharge of the melt from the hot water outlet halfway, and since it is possible to freely stop the hot water and the hot water, the degree of freedom of the furnace increases, and conventionally, the melt has been completely discharged. After that, while the next furnace operation was performed, the molten metal was left in the furnace, the hot water was stopped, and the next processed product could be charged, so that heat conduction to the processed product was reduced. Produced because it is faster, can be efficiently melted, and does not discharge melt (slag) that is not sufficiently melted due to a malfunction of the plug, increasing the uniformity of the generated slag Slag is easy to reuse and recycle.

本発明による灰溶融炉の出湯口開閉装置は、灰溶融炉の灰溶融用ルツボ（以下、単にルツボという）に設けられた出湯口と該出湯口を開閉するための開閉栓からなり、出湯口に対して開閉栓を摺動回転させて押圧し出湯口を閉鎖するようにしたものであり、具体的な実施形態を図面により説明する。 An outlet opening / closing device for an ash melting furnace according to the present invention comprises an outlet opening provided in an ash melting crucible (hereinafter simply referred to as a crucible) of an ash melting furnace and an opening / closing stopper for opening and closing the outlet opening. On the other hand, the opening and closing stopper is slid and rotated to close the outlet, and a specific embodiment will be described with reference to the drawings.

図１において、１はルツボであり、例えば、特許第３４５７１２９号公報に記載されるように、電気炉内に設置され、電気炉の炉壁とルツボ１の間の空間に黒鉛ヒータを配設し、当該空間およびルツボ１内に非酸化性ガスを導入し、ルツボ１の上方から処理物を装入して操炉作業を行う。 In FIG. 1, reference numeral 1 denotes a crucible . For example, as described in Japanese Patent No. 3457129, a crucible is installed in a space between a furnace wall of the electric furnace and the crucible 1. Then, a non-oxidizing gas is introduced into the space and the crucible 1, and a furnace is operated by charging the processed material from above the crucible 1.

ルツボ１の底部に横方向に出湯口２が設けられる。その構成は、例えば、ルツボ１の底部に溶融物Ｍの排出孔４をそなえたノズル３を装着し、ノズル３の後端部５の排出孔４に対して、開閉栓６を押圧して出湯口を閉鎖する。 A hot water outlet 2 is provided laterally at the bottom of the crucible 1. For example, the nozzle 3 having the discharge hole 4 for the melt M is attached to the bottom of the crucible 1, and the opening / closing plug 6 is pressed against the discharge hole 4 at the rear end 5 of the nozzle 3. Close the gate.

この場合、開閉栓６の先端部７は円弧状（図１）に形成され、開閉栓６の先端部７が押圧されるノズル３の後端部５の排出孔４の部分も、円弧状を有する開閉栓６の先端部７が嵌合し得る形状に形成される。なお、図１においては、ノズル３は２つのノズル８、９から構成され、ノズル８はルツボ１の底部に装着され、ノズル９はノズル８に嵌合されている。 In this case, the distal end portion 7 of the opening / closing stopper 6 is formed in an arc shape (FIG. 1), and the discharge hole 4 portion of the rear end portion 5 of the nozzle 3 where the distal end portion 7 of the opening / closing stopper 6 is pressed also has an arc shape. tip 7 of the closing plug 6 is formed in a shape capable of fitting with. In FIG. 1, the nozzle 3 includes two nozzles 8 and 9, the nozzle 8 is mounted on the bottom of the crucible 1, and the nozzle 9 is fitted to the nozzle 8 .

ノズル３の後端部５の排出孔４の部分に対して開閉栓６の先端部７を押圧するための装置は、図１に示すように、開閉栓６を接続治具１０を介して加圧シリンダ１１に接続し、加圧シリンダ１１の作動によって、開閉栓６の軸が矢印Ａで示すように移動して、開閉栓６の先端部７がノズル３の後端部５に対して押圧またはノズル３の後端部５から離れるように移動し得るよう構成し、また、ギア装置１２を介して回転モータ１３に連結し、回転モータ１３の回転によりギア装置１２を介して開閉栓３の軸を矢印Ｂ方向に回転させるよう構成する。   As shown in FIG. 1, the device for pressing the distal end portion 7 of the open / close plug 6 against the discharge hole 4 portion of the rear end portion 5 of the nozzle 3 adds the open / close plug 6 via a connecting jig 10. By connecting the pressure cylinder 11 and operating the pressure cylinder 11, the shaft of the opening / closing stopper 6 moves as indicated by an arrow A, and the tip 7 of the opening / closing stopper 6 presses against the rear end 5 of the nozzle 3. Alternatively, the nozzle 3 is configured to move away from the rear end 5 of the nozzle 3, and is connected to the rotary motor 13 via the gear device 12, and the opening / closing plug 3 is rotated via the gear device 12 by the rotation of the rotary motor 13. The shaft is configured to rotate in the direction of arrow B.

ノズル３の後端部５の排出孔４の部分に対して開閉栓６の先端部７を押圧するには、回転モータ１３を作動させてギア装置１２を介して開閉栓６の軸を矢印Ｂ方向に回転させ、ノズル３の後端部５の排出孔４の部分に対して開閉栓６の先端部７を摺動回転させ、同時に加圧シリンダ１１を作動させて、開閉栓６の軸を矢印Ａで示すように移動させ、開閉栓６の先端部７をノズル３の後端部５の排出孔４にに対して押圧する。   In order to press the distal end portion 7 of the opening / closing plug 6 against the discharge hole 4 portion of the rear end portion 5 of the nozzle 3, the rotary motor 13 is operated and the shaft of the opening / closing plug 6 is moved to the arrow B via the gear device 12. The tip 7 of the open / close plug 6 is slid and rotated with respect to the discharge hole 4 portion of the rear end 5 of the nozzle 3, and at the same time, the pressure cylinder 11 is operated to rotate the shaft of the open / close plug 6. As shown by the arrow A, the tip 7 of the open / close plug 6 is pressed against the discharge hole 4 of the rear end 5 of the nozzle 3.

この操作により出湯口２は閉鎖される。回転モータ１３による開閉栓６の軸の回転数は０．５〜３ｒｐｍ程度、加圧シリンダ１１による押圧力は３〜５ｋｇ／ｃｍ2 程度が好ましい。灰溶融炉の操炉中に、開閉栓６にゆるみが生じた場合には、回転モータ１３と加圧シリンダ１１を作動させて、ノズル３の後端部５の排出孔４の部分に対して開閉栓６の先端部７を摺動回転させて押圧する。操炉中は、排出孔４内には溶融物Ｍが充填されており、ノズル３は加熱された状態にある。実際の操炉中においては、この作業は定期的に行うのが望ましい。 By this operation, the tap 2 is closed. The rotation speed of the shaft of the opening / closing stopper 6 by the rotary motor 13 is preferably about 0.5 to 3 rpm, and the pressing force by the pressure cylinder 11 is preferably about 3 to 5 kg / cm 2 . When the open / close stopper 6 is loosened during the operation of the ash melting furnace, the rotary motor 13 and the pressure cylinder 11 are operated so that the discharge hole 4 at the rear end portion 5 of the nozzle 3 is operated. The front end portion 7 of the opening / closing plug 6 is slid and rotated. During the operation of the furnace, the discharge hole 4 is filled with the melt M, and the nozzle 3 is in a heated state. It is desirable to perform this operation periodically during actual operation.

出湯口２を開口させるには、加圧シリンダ１１を作動させ、開閉栓６の軸を開閉栓６の先端部７がノズル３の後端部５から後退するように移動させ、排出孔４から溶融物Ｍを排出する。   In order to open the tap 2, the pressurizing cylinder 11 is operated, and the shaft of the opening / closing stopper 6 is moved so that the front end 7 of the opening / closing stopper 6 moves backward from the rear end 5 of the nozzle 3. The melt M is discharged.

出湯口２を構成する材質および開閉栓６を構成する材質としては、黒鉛、窒化珪素、炭化珪素、アルミナ、その他耐火煉瓦などが適用されるが、出湯口２を構成するノズル３の材質と開閉栓６を構成する材質とは同一のものであることが望ましく、両材質を黒鉛で構成するのがより好ましい。出湯口および開閉栓を黒鉛で構成することにより、好ましい摺り合わせが得られ、効果的に出湯口の開閉を行うことができる。なお、出湯口、開閉栓が消耗した場合には、開閉栓を新品と交換するのみでも十分に出湯口の閉鎖を行うことができる。   Graphite, silicon nitride, silicon carbide, alumina, other refractory bricks and the like are applied as the material constituting the tap 2 and the material of the nozzle 3 constituting the tap 2. It is desirable that the material constituting the stopper 6 is the same, and it is more preferable that both materials are composed of graphite. By configuring the outlet and the opening / closing stopper with graphite, preferable sliding can be obtained, and the outlet can be effectively opened and closed. In addition, when the tap and the tap are exhausted, the tap can be sufficiently closed only by replacing the tap with a new one.

本発明の灰溶融炉の出湯口開閉装置の一実施例を示す主要部の一部断面図である。It is a partial cross section figure of the principal part which shows one Example of the tap outlet opening / closing apparatus of the ash melting furnace of this invention.

符号の説明Explanation of symbols

１ 灰溶融用ルツボ
２ 出湯口
３ ノズル
４ 排出孔
５ ノズルの後端部
６ 開閉栓
７ 開閉栓の先端部
８ ノズル
９ ノズル
１０ 接続治具
１１ 加圧シリンダ
１２ ギア装置
１３ 回転モータ DESCRIPTION OF SYMBOLS 1 Crucible for ash melting 2 Hot water outlet 3 Nozzle 4 Discharge hole 5 Nozzle rear end 6 Opening and closing plug 7 Front end of opening and closing plug 8 Nozzle 9 Nozzle 10 Connecting jig 11 Pressure cylinder 12 Gear device 13 Rotating motor

Claims (2)

電気炉内に灰溶融用ルツボを設置し、電気炉の炉壁と灰溶融用ルツボの間の空間に黒鉛ヒータを配設し、灰溶融用ルツボの底部に横方向に出湯口を設けてなり、灰溶融用ルツボの上方から処理物を装入して操炉作業を行う灰溶融炉の出湯口を灰溶融炉の外側から開閉する装置であって、灰溶融炉の灰溶融用ルツボに設けられた出湯口を開閉するための円弧状の先端部をそなえた開閉栓と、開閉栓を出湯口に向けて移動させまたは出湯口から離れるように移動させるための開閉栓の軸方向に接続された加圧シリンダと、開閉栓を回転させるためのギア装置と、ギア装置を作動させるための回転モータをそなえ、回転モータの作動によりギア装置を介して開閉栓を回転させるとともに、開閉栓を加圧シリンダにより出湯口へ移動させ、出湯口に対して開閉栓を摺動回転させて押圧し出湯口を閉鎖するようにし、加圧シリンダを作動させ、開閉栓を先端部が出湯口から後退するように移動させ出湯口を開口するよう構成したことを特徴とする灰溶融炉の出湯口開閉装置。 An ash melting crucible is installed in the electric furnace, a graphite heater is installed in the space between the furnace wall of the electric furnace and the ash melting crucible, and a hot water outlet is provided laterally at the bottom of the ash melting crucible. , An apparatus for opening and closing the outlet of the ash melting furnace for charging and operating the ash melting crucible from the outside of the ash melting crucible, provided in the ash melting crucible of the ash melting furnace An open / close stopper with an arc-shaped tip for opening and closing the outlet, and an axial connection of the stopper for moving the stopper toward the outlet or away from the outlet. A pressure cylinder, a gear device for rotating the open / close plug, and a rotary motor for operating the gear device. The rotary motor is operated to rotate the open / close plug through the gear device, and the open / close plug is added. Move to the tap by the pressure cylinder and It was configured to open and close the tap by sliding and rotating the tap to close the tap, operating the pressure cylinder, and moving the tap so that the tip retreats from the tap. An outlet opening and closing device for an ash melting furnace. 前記出湯口を構成する材質と前記開閉栓を構成する材質が黒鉛であることを特徴とする請求項１記載の灰溶融炉の出湯口開閉装置。 2. The outlet opening / closing device for an ash melting furnace according to claim 1, wherein the material constituting the outlet and the material constituting the opening / closing stopper are graphite .
JP2004315510A 2004-10-29 2004-10-29 Opening and closing device for ash melting furnace Expired - Fee Related JP4924913B2 (en)

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