JP2008183497A - Method and device for treating dust - Google Patents

Method and device for treating dust Download PDF

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JP2008183497A
JP2008183497A JP2007017715A JP2007017715A JP2008183497A JP 2008183497 A JP2008183497 A JP 2008183497A JP 2007017715 A JP2007017715 A JP 2007017715A JP 2007017715 A JP2007017715 A JP 2007017715A JP 2008183497 A JP2008183497 A JP 2008183497A
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dust
water
cake
air
asbestos
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Ryuichi Watanabe
龍一 渡邊
Michio Ota
道男 太田
Satoshi Ieda
聡 家田
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WATANABE KAITAI KOGYO KK
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WATANABE KAITAI KOGYO KK
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  • Treatment Of Sludge (AREA)
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a system device and a system method by which generated dust is collected to be made harmless prior to the dismantlement of a building. <P>SOLUTION: A dust collection mechanism A is provided with an air pump (blower 21), and sucks air containing dust (as shown by arrow a) and feeds it to a flocculation mechanism B (as shown by arrow b). Water 31 is sprayed to an air flow containing dust, and is blown into a treatment water tank 1, so as to precipitate the dust. The precipitate is fed by a conveyer 7, and is made into a cake 9 by a dehydrator 8. The cake is charged into a cake charge port 22a of a fusion solidification mechanism C, and subjected to induction heating by an induction heating coil 23, so as to be formed as fused asbestos 24, which are poured into a cooling water tank 25, so as to make vitrified asbestos 27. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は粉塵を集めて無害の固形物にする技術に係り、特に石綿粉塵を回収するに好適である。   The present invention relates to a technique for collecting dust into a harmless solid, and is particularly suitable for collecting asbestos dust.

粉塵に因る公害の防止については種々の研究開発が為されている。
空気中に含まれている塵埃を除去する技術としては、特許文献1の欄に挙げた特開2006−26577号公報「空気浄化方法」が提案さてれている。
この発明は、塵埃を含む空気流の中へ水滴と吸着剤粒子とを混合噴射するものであって、クリーンルームなどのように高度の清浄性が求められる場合に好適である旨が報告されている。
Various research and development have been conducted on the prevention of pollution caused by dust.
As a technique for removing dust contained in the air, Japanese Patent Laid-Open No. 2006-26577 “Air Purification Method” listed in the column of Patent Document 1 has been proposed.
It has been reported that the present invention mixes and injects water droplets and adsorbent particles into an air stream containing dust, and is suitable when a high degree of cleanliness is required such as in a clean room. .

一方、特許文献2として挙げた特開平7−136409号公報「廃水処理用の凝集剤」は、卓絶した凝集性能を発揮するが、この薬剤が微粒子の凝集作用を果たすのは水中に限られており、空気中の粉塵に対しては別段の手段を講じなければ凝集作用を発揮することができない。
そこで、特許文献3として挙げた特開2004−268010号公報「河川等の水浄化方法」は前記の凝集剤(特許文献2)を圧縮空気と共に河川の中へ噴射して、河川水中の汚濁物質を凝集させて浄化する。この公知発明も、空気中の粉塵を除去することには適しない。
特開2006−26577号公報 特開平7−136409号公報 特開2004−268010号公報
On the other hand, Japanese Patent Application Laid-Open No. Hei 7-136409 cited as Patent Document 2 “Aggregating agent for wastewater treatment” exhibits an outstanding aggregating performance, but this agent performs the aggregating action of fine particles only in water. In addition, the aggregating action cannot be exerted unless dust is taken in the air.
Therefore, Japanese Patent Application Laid-Open No. 2004-268010 “Water purification method for rivers” cited as Patent Document 3 injects the flocculant (Patent Document 2) into the river together with compressed air, and pollutants in the river water. Aggregate and purify. This known invention is also not suitable for removing dust in the air.
JP 2006-26577 A JP 7-136409 A JP 2004-268010 A

最近、石綿の粉塵による発癌公害が社会的問題となり、例えば小,中,高等学校の体育館などにおいて、内装材に用いられていた石綿を除去する作業が公共工事として進められている。
しかし、除去した石綿が粉塵となって飛散すると、周辺住民および作業員に対して2次的な公害を及ぼすので充分な注意を必要とし、厳重に法的規制が為されている。
先に特許文献として挙げた発明が出願された後も、粉塵除去に関する研究開発は為されている。
Recently, carcinogenic pollution caused by asbestos dust has become a social problem, and as a public work, for example, asbestos used for interior materials is being promoted in gymnasiums of elementary, middle, and high schools.
However, if the removed asbestos is scattered as dust, it will cause secondary pollution to the surrounding residents and workers, so it requires sufficient care and is strictly legally regulated.
Even after the invention cited above as a patent document has been filed, research and development relating to dust removal has been conducted.

図2は、本発明者が創作して、本願発明に先立つこと約4カ月に、本出願人によって特許出願された未公知の発明に係る「空気中の粉塵を除去する装置」を模式的に描いた正面断面図である。
符号3を付して示したのは、前記特開平7−136409号公報の「廃水処理用の凝集剤」である。
塵埃を含む空気流6の中へ、凝集剤添加器4によって凝集剤3が注入され、渦流を発生させる部材5によってよく混合される。
FIG. 2 schematically shows an “apparatus for removing dust in the air” according to an undisclosed invention that was created by the present inventor and patented for about 4 months prior to the present invention. It is front sectional drawing drawn.
Reference numeral 3 indicates the “flocculating agent for wastewater treatment” disclosed in JP-A-7-136409.
The flocculant 3 is injected into the air stream 6 containing dust by the flocculant adder 4 and mixed well by the member 5 that generates a vortex.

空気送給管2内で混合された「塵埃と凝集剤とを含む空気流」(矢印b)は処理水槽1の中へ吹き込まれ、衝突板1aに衝突して激しく撹拌される。
激しい撹拌によって凝集剤が作用を発揮し、塵埃は凝集して処理水槽1の底部に沈澱する。塵埃由来の沈澱物はコンベア7で搬出(矢印c)され、脱水機8で脱水加工されてケーキ9となる(矢印i)。
The “air stream containing dust and aggregating agent” (arrow b) mixed in the air feed pipe 2 is blown into the treated water tank 1, collides with the collision plate 1a, and is vigorously stirred.
The flocculant exerts an action by vigorous stirring, and the dust aggregates and settles at the bottom of the treated water tank 1. The dust-derived precipitate is carried out by the conveyor 7 (arrow c) and dehydrated by the dehydrator 8 to become a cake 9 (arrow i).

塵埃を除去された清浄な空気は排気孔1bから放出(矢印d)される。
図2を参照して上述したのは塵埃と空気との動きである。処理水槽1内の水は次のように循環流動する。
前記の沈澱物は水分を含んでいるので、余分の水は脱水機8で絞り取られて受水槽14に落ち、ポンプで汲み上げられて回収(矢印e)される。
補給水11は開閉弁10aを介して矢印gのように処理水槽1に補給される。
The clean air from which the dust has been removed is discharged from the exhaust hole 1b (arrow d).
What has been described above with reference to FIG. 2 is the movement of dust and air. The water in the treated water tank 1 circulates and flows as follows.
Since the precipitate contains water, excess water is squeezed out by the dehydrator 8 and falls into the water receiving tank 14, and is pumped up and collected (arrow e).
The replenishing water 11 is replenished to the treated water tank 1 as indicated by an arrow g through the on-off valve 10a.

前記の回収水(矢印e)は開閉弁10bを介して矢印fのように前記補給水(矢印g)に合流して処理水槽1に還流する。
余分の水は、ラビリンス12を経てオーバーフローパイプ13を流通し、前記受水槽14に入る(矢印h)。
前記のケーキ9は羊羹状の手触りを有し、無害であるが乾燥すると粉塵に戻るから、未だ最終処理品とは言えない。
The recovered water (arrow e) joins the makeup water (arrow g) as shown by arrow f through the on-off valve 10b and returns to the treated water tank 1.
Excess water flows through the overflow pipe 13 through the labyrinth 12 and enters the water receiving tank 14 (arrow h).
The cake 9 has a sheep-like touch and is harmless, but returns to dust when dried, so it is not yet a final processed product.

上述した先行技術は何れも断片的であり、石綿粉塵の集塵から無害化回収に至る一貫した粉塵処理システムは未だ完成されていない。
本発明は以上に述べた事情に鑑みて為されたものであって、その目的は、集塵した粉塵の全量を、流れ作業で処理して無害化し、再び粉塵化する虞れの無い固形状態にして回収するシステムとしての技術を提供することである。
All of the above-described prior arts are fragmented, and an integrated dust treatment system from asbestos dust collection to detoxification collection has not yet been completed.
The present invention has been made in view of the circumstances described above, and its purpose is to treat the entire amount of collected dust in a flow operation to make it harmless and solid state without fear of dusting again. It is to provide the technology as a system to collect.

本発明について、その1実施形態に対応する図1を参照して説明すると次のとおりである。
この[課題を解決するための手段]の欄は、図面との対照が容易なように括弧書きで図面符号を付記してあるが、この括弧付き符号は本発明の構成を図面のとおりに限定するものではない。
なお、図2を参照して説明した先行技術においては、空気流中に凝集剤を注入したが、本発明者の研究により、必ずしも凝集剤を注入しなくても、水を噴霧することによっても粉塵の凝集を促進し得ることを確認したので、本発明においては凝集剤でなく、水を噴霧する。
請求項1に係る粉塵の処理方法は、
a.集塵機構(A)により、粉塵を含む空気(矢印a)を吸入して圧送する工程と、
b.圧送されている空気の中へ水を噴霧する工程と
c.粉塵及び霧状の水を含む空気流を処理水槽(1)内の水中に吹き込んで撹拌し、粉塵を凝集沈殿させる工程と、
d.水中で凝集した粉塵由来の沈殿物を、水中から取り出す(矢印c)工程と、
e.水中から取り出された沈殿物を脱水してケーキ状の含水固形物(9)にする工程(矢印i)と、
f.ケーキ状の固形物を加熱して熔融した後、冷却して固化ささる工程(C)とを、
連続した一連のシステムとして施工することを特徴とする。
The present invention will be described with reference to FIG. 1 corresponding to the first embodiment.
In this [Means for Solving the Problems] column, drawing symbols are added in parentheses for easy comparison with the drawings, but these bracketed symbols limit the configuration of the present invention as shown in the drawings. Not what you want.
In the prior art described with reference to FIG. 2, the flocculant is injected into the air flow. However, according to the research of the present inventor, it is not always necessary to inject the flocculant, but by spraying water. Since it has been confirmed that dust aggregation can be promoted, in the present invention, water is sprayed instead of a flocculant.
The dust processing method according to claim 1 is:
a. Sucking air containing dust (arrow a) by the dust collecting mechanism (A) and pumping it;
b. Spraying water into the air being pumped; c. A step of blowing and stirring an air stream containing dust and mist-like water into the water in the treated water tank (1) to agglomerate and precipitate the dust;
d. Removing a precipitate derived from dust aggregated in water from the water (arrow c);
e. Dehydrating the precipitate taken out of the water into a cake-like water-containing solid (9) (arrow i);
f. Step (C) in which cake-like solid is heated and melted, and then cooled and solidified.
It is constructed as a continuous series of systems.

請求項2の発明に係る粉塵処理方法は、前記請求項1の発明方法の構成要件に加えて、 前記の粉塵が、建造物の一部分を除去する際に発生した石綿の粉塵であることを特徴とする。   The dust treatment method according to the invention of claim 2 is characterized in that, in addition to the constituent features of the method of the invention of claim 1, the dust is asbestos dust generated when a part of the building is removed. And

請求項3の発明に係る粉塵処理方法は、前記請求項2の発明方法の構成要件に加えて、
前記の建造物をテントで覆い、
前記aの工程で、テント内から粉塵を含有する空気(矢印a)を吸入し、
かつ、前記cの工程で粉塵を除かれた清浄な空気流を前記テントの外へ放出することにより、
前記テントに覆われている空間を負圧に保持して、粉塵がテント内から大気中に漏れ出るのを防止することを特徴とする。
In addition to the constituent features of the invention method of claim 2, the dust treatment method of the invention of claim 3
Cover the building with a tent,
In the step a, inhaling air containing dust from the tent (arrow a),
And, by discharging a clean air stream from which dust has been removed in the step c, to the outside of the tent,
The space covered with the tent is held at a negative pressure to prevent dust from leaking out of the tent into the atmosphere.

請求項4の発明に係る粉塵処理方法は、前記請求項2の発明方法の構成要件に加えて、
前記fの工程におけるケーキ状固形物(9)の加熱・熔融は、該ケーキ状固形物を管状部材(22)の中に投入し、該管状部材の外側に設けた誘導加熱コイル(23)に高周波電流を通電して、管状部材内のケーキ状固形物を誘導電流の発熱によって行なうことを特徴とする。
In addition to the constituent features of the method of the invention of claim 2, the dust treatment method of the invention of claim 4
The heating and melting of the cake-like solid (9) in the step f is performed by charging the cake-like solid into the tubular member (22) and applying it to the induction heating coil (23) provided outside the tubular member. A high-frequency current is applied, and the cake-like solid in the tubular member is generated by heat generation of an induced current.

請求項5の発明に係る粉塵処理装置の構成は、
粉塵を含む空気(矢印a)を吸入して圧送する空気ポンプ(ブロワ21)からなる集塵機構(A)と、
粉塵含有空気流の中へ、粉塵凝集させるために、霧状の水を噴霧し、水中に吹き込んで撹拌することにより粉塵を凝集沈殿させ、沈殿物を取り出して脱水してケーキ状の含水固形物にする凝集機構と、
上記ケーキ状の含水固形物を加熱して熔融させた後、冷却して凝固させる熔融固化機構とが、
一連のシステムを形成していることを特徴とする。
なお、本発明において空気ポンプとは、吸入空気圧力が大気圧未満、吐出圧力が大気圧を超えるものをいう。従って空気ポンプ全体の中で、真空ポンプ(バキュームポンプ)に分類される機器である。
The structure of the dust treatment apparatus according to the invention of claim 5 is:
A dust collection mechanism (A) comprising an air pump (blower 21) for sucking and feeding air containing dust (arrow a);
In order to agglomerate dust into the dust-containing air flow, spray mist water, blow into the water and stir to agglomerate and precipitate the dust, take out the precipitate, dehydrate and dehydrate to cake Agglomeration mechanism to
A melt-solidifying mechanism in which the cake-like water-containing solid is heated and melted, and then cooled and solidified.
It is characterized by forming a series of systems.
In the present invention, the air pump refers to an air pump whose intake air pressure is less than atmospheric pressure and whose discharge pressure exceeds atmospheric pressure. Therefore, it is a device classified as a vacuum pump (vacuum pump) in the entire air pump.

請求項6の発明に係る粉塵処理装置の構成は、前記請求項5の発明装置の構成要件に加えて、
前記集塵機構(A)の吸入口が、粉塵発生源である建造物解体工事場の少なくとも一部分を覆うテント(図外)の内部空間に連通されており、
前記凝集機構(B)で粉塵を除去されて清浄になった空気(矢印d)の排出口が、前記テント外の大気に開放されていて、前記テントの内部空間が負圧に保たれるようになっていることを特徴とする。
The configuration of the dust treatment apparatus according to the invention of claim 6 is in addition to the configuration requirements of the invention apparatus of claim 5,
The suction port of the dust collection mechanism (A) communicates with the internal space of a tent (not shown) that covers at least a part of a building demolition work site that is a dust generation source,
The discharge port of the air (arrow d) cleaned by removing dust by the aggregation mechanism (B) is opened to the atmosphere outside the tent so that the internal space of the tent is maintained at a negative pressure. It is characterized by becoming.

請求項7の発明に係る粉塵処理装置の構成は、前記請求項5の発明装置の構成要件に加えて、
前記の粉塵が石綿の粉末であり、前記の熔融固化機構(C)が高周波誘導加熱手段(23)と冷却水槽(25)とを備えていて、集塵された石綿粉塵がシステム処理された結果として、ガラス化石綿粒(27)が回収されることを特徴とする。
The configuration of the dust treatment apparatus according to the invention of claim 7 is in addition to the configuration requirements of the invention apparatus of claim 5,
The dust is asbestos powder, the melting and solidifying mechanism (C) includes a high frequency induction heating means (23) and a cooling water tank (25), and the collected asbestos dust is subjected to system processing. As a feature, vitrified asbestos grains (27) are recovered.

請求項8に係る粉塵の処理方法は、前記請求項1の発明方法の構成要件に加えて、
沈殿物を取り出された後の水が粉塵などの異物によって濁ったとき、濁り水をフィルタで濾過し、濾し取った異物は前記ケーキ状の固形物と一緒に加熱して熔融した後、冷却して固化させることを特徴とする。濾し取った水は、粉塵を除去されているので容易に処理(例えば下水に放流)することができる。
In addition to the constituent features of the inventive method of claim 1, the dust processing method according to claim 8 is:
When the water after the precipitate is taken out becomes turbid due to foreign matter such as dust, the turbid water is filtered through a filter, and the filtered foreign matter is heated and melted together with the cake-like solid, and then cooled. It is characterized by solidifying. The filtered water can be easily treated (for example, discharged into sewage) since the dust is removed.

請求項1の発明に係る粉塵処理方法を適用すると、粉塵の捕集から始まって、該粉塵を無害化処理して回収するまでの処理が、一貫したシステムとして高能率で遂行され、
捕集した粉塵を処理途中で漏失する虞れが無く、捕集した粉塵の全量を回収することができ、
しかも、回収された粉塵由来の物質は完全に固化していて、乾燥したり破壊されたりしても二度と粉塵化しない。
When applying the dust treatment method according to the invention of claim 1, the process from the collection of dust until the dust is detoxified and recovered is performed with high efficiency as a consistent system,
There is no risk of the collected dust leaking during processing, and the entire amount of collected dust can be recovered.
Moreover, the collected dust-derived substance is completely solidified and will not dust again even if it is dried or destroyed.

請求項2の発明に係る粉塵処理方法を、前記請求項1の発明方法に併せて適用すると、公害物質である石綿を除去する工事を、安全にかつ確実に高能率で施工することができ、 特に、除去した石綿製廃材の一部を散逸させて、2次公害(付近住民や作業者に及ぼす石綿公害)を招く虞れが無いので、解体産業の発展に寄与するだけでなく、社会的に貢献するところ多大である。   When the dust treatment method according to the invention of claim 2 is applied together with the invention method of claim 1, the construction for removing asbestos, which is a pollutant, can be safely and reliably performed with high efficiency. In particular, there is no risk of causing secondary pollution (asbestos pollution on nearby residents and workers) by dissipating some of the removed asbestos waste material, so that it not only contributes to the development of the demolition industry, but also social It is a great place to contribute to

請求項3の発明に係る粉塵の処理方法は、建造物の解体工事に適用するに好適である。 石綿製部材の解体除去に際しては、石綿粉塵を飛散させないようにシートで覆い、かつシートで覆われた空間内を負圧に保つことが厳重に法定されている。
請求項3の発明方法によれば、粉塵を集塵する手段(空気ポンプ、詳しくはバキュームポンプ)と、シート内部空間を負圧に保つ手段(空気ポンプ、詳しくはバキュームポンプ)とを兼ねさせるので、資材費用が節減されるのみならず、工事設備の設置・撤収・保管・移動が容易である。
The dust processing method according to the invention of claim 3 is suitable for application to a building demolition work. When disassembling and removing asbestos members, it is strictly legal to cover with a sheet so that asbestos dust is not scattered and to keep the space covered with the sheet at a negative pressure.
According to the third aspect of the invention, the means for collecting dust (air pump, specifically vacuum pump) and the means for maintaining the interior space of the seat at negative pressure (air pump, specifically vacuum pump) are combined. In addition to saving material costs, it is easy to install, withdraw, store and move construction equipment.

請求項4の発明に係る粉塵処理方法を適用すると、公害物質である2酸化炭素ガスを発生することなく、捕集した石綿粉塵を高温(例えば1200℃〜1500℃)に加熱して熔融させ、石綿繊維の集合体であるケーキ状の半製品を、完全に一体的な固形物として回収することができる。   When applying the dust treatment method according to the invention of claim 4, the collected asbestos dust is heated and melted at a high temperature (for example, 1200 ° C to 1500 ° C) without generating carbon dioxide gas as a pollutant, A cake-like semi-finished product that is an aggregate of asbestos fibers can be recovered as a completely integrated solid.

請求項5の発明に係る粉塵処理装置を適用すると、粉塵の捕集から始まって、該粉塵を無害化処理して回収するまでの処理を、一貫したシステムとして高能率で遂行することができ、
捕集した粉塵を処理途中で漏失する虞れが無く、捕集した粉塵の全量を回収することができ、
しかも、回収された粉塵由来の物質は完全に固化していて、乾燥したり破壊されたりしても二度と粉塵化しない。すなわち完全無害化が行われる。
When applying the dust treatment apparatus according to the invention of claim 5, the process from the collection of the dust until the dust is detoxified and recovered can be efficiently performed as a consistent system,
There is no risk of the collected dust leaking during processing, and the entire amount of collected dust can be recovered.
Moreover, the collected dust-derived substance is completely solidified and will not dust again even if it is dried or destroyed. That is, complete detoxification is performed.

請求項6の発明に係る粉塵処理装置は、石綿を用いた建造物の解体工事に適用するに好適である。
石綿製部材の解体除去に際しては、公害防止の立場から、石綿粉塵を飛散させないように工事対象物をシートで覆い、かつシートで覆われた空間内を負圧に保つことが厳重に法定されている。
請求項6の発明装置によれば、粉塵を集塵する機器(空気ポンプ、詳しくはバキュームポンプ)と、シート内部の空間を負圧に保つ機器(空気ポンプ、詳しくはバキュームポンプ)とが兼用されているので、製造コストが低廉であるのみならず、工事場の移動に際しての搬送・設置・撤収・保管管理・保守整備が容易である。
建造物の解体作業は本来一時的なものであって、工事場を比較的短期間ごとに移動させなければならない事業形態であることを勘案すると、設備の移動が容易であることの実用的価値は多大である。
The dust treatment apparatus according to the invention of claim 6 is suitable for application to the demolition work of a building using asbestos.
When disassembling and removing asbestos members, it is strictly legally required from the standpoint of pollution prevention to cover the construction object with a sheet so that the asbestos dust is not scattered and to maintain the negative pressure in the space covered with the sheet. Yes.
According to the sixth aspect of the present invention, the device for collecting dust (air pump, specifically vacuum pump) and the device for maintaining the space inside the seat at a negative pressure (air pump, specifically vacuum pump) are combined. Therefore, not only is the manufacturing cost low, but transportation, installation, withdrawal, storage management, and maintenance are easy when moving the construction site.
Considering the fact that the demolition work of the building is temporary in nature and the construction site must be moved every relatively short period of time, the practical value of being easy to move equipment Is enormous.

請求項7の発明に係る粉塵処理装置を適用すると、公害物質である石綿粉塵を迅速かつ容易に固化させて完全に無害化することができる。しかも、燃焼ガスを生じないので高温区域が限定されていて安全管理が容易である。
また、バーナーや燃料を用いないので、危険物取扱いに関する高度の資格や設備を必要とせず、熔融固化機構が小形軽量に構成されるので使い勝手が良く、汎用性が高いので普及し易い。
When the dust treatment apparatus according to the invention of claim 7 is applied, the asbestos dust, which is a pollutant, can be solidified quickly and easily and made completely harmless. In addition, since no combustion gas is generated, the high temperature area is limited, and safety management is easy.
In addition, since no burner or fuel is used, advanced qualifications and facilities for handling dangerous goods are not required, and the melting and solidifying mechanism is compact and lightweight, so it is easy to use and highly versatile.

請求項8の発明に係る粉塵処理方法を適用すると、粉塵の処理に伴って水槽内の水が汚濁したとき、汚濁水中の粉塵を安全に回収するとともに、汚濁水中の水分は、これを下水へ放流し得る程度に浄化することができる。   When the dust treatment method according to the invention of claim 8 is applied, when the water in the water tank becomes polluted with the treatment of the dust, the dust in the polluted water is recovered safely, and the water in the polluted water is sent to the sewage. It can be purified to such an extent that it can be discharged.

図1は、本発明に係る粉塵処理方法を実施するために構成した粉塵処理装置の1実施形態を模式的に描いた系統図である。
本発明装置は、粉塵を吸入する空気ポンプ(詳しくはバキュームポンプ)を主要機器とする集塵機構Aと、捕集した粉塵を吹き込んで凝集させる処理水槽1を主要機器とする凝集機構Bと、凝集した粉塵を加熱冷却して固化させる熔融固化機構Cとが、一貫した処理システムを構成している。
以下、各機構について順次に詳述する。
FIG. 1 is a system diagram schematically illustrating one embodiment of a dust treatment apparatus configured to carry out a dust treatment method according to the present invention.
The apparatus of the present invention includes a dust collection mechanism A whose main device is an air pump for sucking dust (specifically, a vacuum pump), a coagulation mechanism B whose main device is a treated water tank 1 that blows and collects collected dust, and agglomeration The solidification mechanism C that solidifies the heated dust by heating and cooling constitutes a consistent processing system.
Hereinafter, each mechanism will be described in detail.

集塵機構Aは、解体される建造物中の石綿粉塵発生箇所を覆うテント(何れも図示を省略)の中に設置され、空気ポンプとして設けたブロワ21が、解体作業で発生した石綿粉塵を含有する空気を矢印aのように吸入する。
本実施形態においては、前記の集塵機構Aと、処理水槽1を主要機器とする凝集機構Bと、凝集した粉塵を加熱冷却して固化させる熔融固化機構Cとを中型トラックに搭載して移動式の石綿粉塵処理設備を構成した。
石綿粉塵が発生する虞れの有る解体工事は、一か所の工期が短くて、絶えず移動するので、石綿粉塵処理設備がトラックに搭載されて移動式であることの実用的価値は多大である。
上記のブロワ21から吐出された空気流は凝集機構Bに送られる(矢印b)。この凝集機構を構成している処理水槽1、コンベア7、および脱水機8は前掲の図2に示した粉塵除去装置におけると同様ないし類似の構成部材であって、該粉塵除去装置と同様に作用して、石綿粉塵をケーキ状の固形物9(ただし、乾燥すると粉塵化する)にする。
符号32を付して示したのは水噴霧器であって、水31を空気流(矢印b)の中へ霧状に混合させる。
これにより、図2に示した先行技術におけると同様ないし類似の作用によって、石綿粉塵が凝縮して沈殿する。
The dust collecting mechanism A is installed in a tent (both not shown) covering asbestos dust generation locations in the building to be demolished, and the blower 21 provided as an air pump contains asbestos dust generated in the demolition work. The air to be inhaled is as shown by arrow a.
In the present embodiment, the dust collection mechanism A, the aggregation mechanism B having the treated water tank 1 as a main device, and the melt solidification mechanism C for heating and cooling the aggregated dust to be solidified are mounted on a medium-sized truck and are movable. Asbestos dust treatment equipment was constructed.
The demolition work that may generate asbestos dust is a short construction period and constantly moves, so the practical value of having the asbestos dust treatment equipment mounted on a truck and moving is great. .
The air flow discharged from the blower 21 is sent to the aggregation mechanism B (arrow b). The treatment water tank 1, the conveyor 7, and the dehydrator 8 that constitute this agglomeration mechanism are the same or similar components as in the dust removing device shown in FIG. 2 described above, and operate in the same manner as the dust removing device. Then, the asbestos dust is made into cake-like solid 9 (however, it becomes dust when dried).
Reference numeral 32 denotes a water sprayer that mixes the water 31 into the air stream (arrow b) in the form of a mist.
Thus, asbestos dust is condensed and precipitated by the same or similar action as in the prior art shown in FIG.

処理水槽1において石綿粉塵を除去された清浄な空気(矢印d)は、図示しないテントの外側へ、すなわち大気中へ放出される。
上述の作動によって、粉塵発生区域を覆っているテント内の空気が吸引(矢印a)され、清浄化されてテント外に放出(矢印d)されるので、テントの内部空間が負圧になる。このため、テント内で発生した石綿粉塵がテント外へ漏れ出さない。
テント外へ放出される空気流(矢印d)は石綿粉塵を含まない清浄な空気流であるから2次的な公害を生じる虞れが無い。
The clean air (arrow d) from which asbestos dust has been removed in the treated water tank 1 is discharged to the outside of a tent (not shown), that is, into the atmosphere.
By the above operation, the air in the tent covering the dust generation area is sucked (arrow a), cleaned and released outside the tent (arrow d), so that the internal space of the tent becomes negative pressure. For this reason, asbestos dust generated in the tent does not leak out of the tent.
Since the airflow (arrow d) discharged outside the tent is a clean airflow that does not contain asbestos dust, there is no possibility of causing secondary pollution.

処理水槽1の中で凝縮した沈殿物はコンベア7で運びだされて、脱水機8に送り込まれる。
脱水機8で絞り取られた水は処理水槽1へ戻される。
該処理水槽内の水が、微細な石綿粉塵などの異物によって汚濁すると、フィルタ33によって濾過する。発生した水は下水へ放流(矢印j)し、漉し取った異物はケーキ9と一緒に回収する。
このようにして、処理水槽内の水質管理が行われる。
The sediment condensed in the treated water tank 1 is carried by the conveyor 7 and sent to the dehydrator 8.
The water squeezed out by the dehydrator 8 is returned to the treated water tank 1.
When the water in the treated water tank is contaminated by foreign matter such as fine asbestos dust, it is filtered by the filter 33. The generated water is discharged into the sewage (arrow j), and the squeezed foreign matter is collected together with the cake 9.
In this way, water quality management in the treated water tank is performed.

凝集機構Bから送出(矢印i)されるケーキ9の取扱いは容易であるが、乾燥させると粉塵化して飛散するので、熔融固化機構Cへ送り込んで完全無害化する。
符号22を付して示したのは耐熱性の管路であって、傾斜を付されて設置されている。
上記管路22の一端が拡開されてケーキ投入口22aを形成し、その他端は冷却水槽25の上方に開口している。
上記管路22の中間部の外周に誘導加熱コイル23が外嵌され、高周波電源に接続されている。
The cake 9 delivered from the agglomeration mechanism B (arrow i) is easy to handle, but when dried, the cake 9 is dusted and scattered, so it is sent to the melting and solidifying mechanism C to be completely harmless.
Reference numeral 22 indicates a heat-resistant pipe line that is provided with an inclination.
One end of the pipe line 22 is expanded to form a cake inlet 22 a, and the other end is opened above the cooling water tank 25.
An induction heating coil 23 is fitted on the outer periphery of the intermediate portion of the conduit 22 and connected to a high frequency power source.

ケーキ投入口22aから投入(矢印m)されたケーキ9は管路22内で約1400℃に高周波誘導加熱されて熔融し、熔融石綿24が矢印nのように流動して、冷却水槽25内の水面26に落下する。
落下した熔融石綿24は急速に水冷されてガラス化石綿27の粒になる。このガラス化石綿27は乾燥しても粉塵に戻ることが無い。
The cake 9 charged (arrow m) from the cake charging port 22a is melted by high-frequency induction heating to about 1400 ° C. in the conduit 22 and the molten asbestos 24 flows as indicated by the arrow n, and the inside of the cooling water tank 25 It falls on the water surface 26.
The dropped molten asbestos 24 is rapidly cooled with water and becomes vitrified asbestos 27 grains. This vitrified asbestos 27 does not return to dust even when dried.

本発明方法を実施する為に構成した本発明装置の1実施形態を模式的に描いた系統図である。1 is a system diagram schematically illustrating one embodiment of the device of the present invention configured to carry out the method of the present invention. 本発明の先行技術に係る未公知の塵埃処理装置を模式的に描いた正面断面図である。It is front sectional drawing which drew the unknown dust processing apparatus which concerns on the prior art of this invention typically.

符号の説明Explanation of symbols

1…処理水槽
1a…衝突板
1b…排気孔
2…空気送給管
3…凝集剤
4…凝集剤添加器
5…渦流を発生させる部材
6…塵埃を含む空気
7…コンベア
8…脱水機
9…ケーキ
10a,10b…開閉弁
11…補給水
12…ラビリンス
13…オーバーフローパイプ
14…受水槽
21…空気ポンプとしてのブロワ
22…管路
22a…ケーキ投入口
23…誘導加熱コイル
24…熔融石綿
25…冷却水槽
26…水面
27…ガラス化した石綿の粒
31…水
32…水噴霧器
33…フィルタ
A…集塵機構
B…凝集機構
C…熔融固化機構
a…塵埃を含む空気の吸入を表す矢印
b…集塵機構から凝集機構に向かう空気流を表す矢印
c…コンベアから脱水機に向かう沈澱物を表す矢印
d…処理水槽から排出される清浄な空気流を表す矢印
e…受水槽から還流する水流を表す矢印
f…補給水に合流する還流水流を表す矢印
g…補給水の流動を表す矢印
h…オーバーフロー水の流動を表す矢印
i…ケーキの送出を表す矢印
j…水の放流を表す矢印
DESCRIPTION OF SYMBOLS 1 ... Treated water tank 1a ... Colliding plate 1b ... Exhaust hole 2 ... Air feed pipe 3 ... Coagulant 4 ... Coagulant adder 5 ... Member generating eddy current 6 ... Air containing dust 7 ... Conveyor 8 ... Dehydrator 9 ... Cake 10a, 10b ... Open / close valve 11 ... Make-up water 12 ... Labyrinth 13 ... Overflow pipe 14 ... Water receiving tank 21 ... Blower as air pump 22 ... Pipe line 22a ... Cake inlet 23 ... Induction heating coil 24 ... Molten asbestos 25 ... Cooling Water tank 26 ... Water surface 27 ... Vitrified asbestos grains 31 ... Water 32 ... Water sprayer
33 ... Filter A ... Dust collection mechanism B ... Agglomeration mechanism C ... Melting and solidification mechanism a ... Arrow representing the intake of air containing dust b ... Arrow representing the air flow from the dust collection mechanism toward the aggregation mechanism c ... Precipitation from the conveyor toward the dehydrator An arrow representing an object d: an arrow representing a clean air flow discharged from the treated water tank e: an arrow representing a water flow returning from the water receiving tank f: an arrow representing a reflux water flow joining the makeup water g: a flow of makeup water Arrow h ... Arrow representing the flow of overflow water i ... Arrow representing cake delivery j ... Arrow representing water discharge

Claims (8)

a.集塵機構により、粉塵を含む空気を吸入して圧送する工程と、
b.圧送されている空気の中へ水を噴霧する工程と、
c.粉塵及び霧状の水を含む空気流を水中に吹き込んで撹拌し、粉塵を凝集沈殿させる工程と、
d.水中で凝集した粉塵由来の沈殿物を、水中から取り出す工程と、
e.水中から取り出された沈殿物を脱水してケーキ状の含水固形物にする工程と、
f.ケーキ状の固形物を加熱して熔融した後、冷却して固化ささる工程とを、
連続した一連のシステムとして施工することを特徴とする、粉塵の処理方法。
a. A step of sucking and pumping air containing dust by a dust collecting mechanism;
b. Spraying water into the air being pumped;
c. A process of agglomerating and precipitating dust by blowing and stirring an air stream containing dust and mist-like water;
d. A step of removing precipitates derived from dust aggregated in water from the water;
e. Dehydrating the precipitate taken out of the water into a cake-like water-containing solid,
f. A step of heating and melting the cake-like solid and then cooling and solidifying,
A method for treating dust, characterized by being constructed as a continuous series of systems.
前記の粉塵が、建造物を解体するに先立って該建造物の一部分を除去する際に発生した石綿の粉塵であることを特徴とする、請求項1に記載した粉塵の処理方法。   The dust processing method according to claim 1, wherein the dust is asbestos dust generated when a part of the building is removed prior to dismantling the building. 前記の建造物の少なくとも一部分をテントで覆い、
前記aの工程でテント内から粉塵含有空気を吸入し、
かつ、前記cの工程で粉塵を除かれた空気流を、前記テントの外へ放出することにより、
前記テントに覆われている空間を負圧に保持して、粉塵が大気中に漏れ出るのを防止することを特徴とする、請求項2に記載した粉塵の処理方法。
Covering at least a part of the building with a tent,
Inhaling dust-containing air from inside the tent in step a;
And, by discharging the air stream from which dust has been removed in the step c, to the outside of the tent,
The dust treatment method according to claim 2, wherein the space covered with the tent is held at a negative pressure to prevent the dust from leaking into the atmosphere.
前記fの工程におけるケーキ状固形物の加熱・熔融は、該ケーキ状固形物を管状部材の中に投入し、該管状部材の外側に設けた誘導加熱コイルに高周波電流を通電して行なうことを特徴とする、請求項2に記載した粉塵の処理方法。   The heating and melting of the cake-like solid in the step f is performed by putting the cake-like solid into a tubular member and passing a high-frequency current through an induction heating coil provided outside the tubular member. The dust treatment method according to claim 2, wherein the dust treatment method is characterized. 粉塵を含む空気を吸入して圧送する空気ポンプからなる集塵機構と、
粉塵含有空気流の中へ水を噴霧し、水中に吹き込んで撹拌することにより粉塵を凝集沈殿させ、沈殿物を取り出して脱水してケーキ状の含水固形物にする凝集機構と、
ケーキ状の含水固形物を加熱し熔融させた後、冷却して凝固させる熔融固化機構とが、
一連のシステムを形成していることを特徴とする、粉塵の処理装置。
A dust collection mechanism consisting of an air pump that sucks in air containing dust and pumps it;
Agglomeration mechanism in which water is sprayed into a dust-containing air stream, dust is agglomerated and precipitated by being blown into water and stirred, and the precipitate is taken out and dehydrated into a cake-like water-containing solid;
A melt-solidification mechanism in which a cake-like water-containing solid is heated and melted, and then cooled and solidified.
Dust processing device, characterized in that it forms a series of systems.
前記集塵機構の吸入口が、粉塵の発生区域を覆うテント内の空間に連通されており、
前記凝集機構で粉塵を除去されて清浄になった空気の排出口が、前記テント外の大気に開放されていて、前記テントの内部空間が負圧に保たれるようになっていることを特徴とする、請求項5に記載した粉塵の処理装置。
A suction port of the dust collecting mechanism is communicated with a space in the tent covering the dust generation area;
The air discharge port cleaned by removing dust by the agglomeration mechanism is open to the atmosphere outside the tent, and the internal space of the tent is maintained at a negative pressure. The dust processing apparatus according to claim 5.
前記の粉塵が石綿の粉末であり、前記の熔融固化機構が高周波誘導加熱手段と冷却水槽とを備えていて、集塵された石綿粉塵がシステム処理された結果として、ガラス化石綿粒が回収されることを特徴とする、請求項5に記載した粉塵の処理装置。   The dust is asbestos powder, the melting and solidifying mechanism includes a high-frequency induction heating means and a cooling water tank, and vitrified asbestos grains are recovered as a result of the system treatment of the collected asbestos dust. The dust processing apparatus according to claim 5, wherein: 沈殿物を取り出された後の水が粉塵などの異物によって濁ったとき、濁り水をフィルタで濾過し、濾し取った異物は前記ケーキ状の固形物と一緒に加熱して熔融した後、冷却して固化させることを特徴とする、請求項1に記載した粉塵の処理方法。   When the water after the precipitate is taken out becomes turbid due to foreign matter such as dust, the turbid water is filtered through a filter, and the filtered foreign matter is heated and melted together with the cake-like solid, and then cooled. The dust treatment method according to claim 1, wherein the dust is solidified.
JP2007017715A 2007-01-29 2007-01-29 Method and device for treating dust Withdrawn JP2008183497A (en)

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CN102580973A (en) * 2012-02-23 2012-07-18 宁波东博电力科技有限公司 Underground dust collection system
KR101514239B1 (en) * 2014-09-05 2015-05-04 (주)동양공조 Coal dust collecting method of thermal power plant
CN105413367A (en) * 2015-11-28 2016-03-23 重庆嘉宇世纪塑业有限公司 Waste gas purifying system used in injection molding machine and provided with stirrer
CN105413368A (en) * 2015-11-28 2016-03-23 重庆嘉宇世纪塑业有限公司 Waste gas treatment box used in injection molding machine and provided with stirrer
CN106731342A (en) * 2017-03-16 2017-05-31 新疆工程学院 Spiral water film dust removal device based on turbulent flow coalescence
CN112044577A (en) * 2020-08-26 2020-12-08 赵德城 Construction waste treatment equipment
CN112044577B (en) * 2020-08-26 2022-01-04 余承好 Construction waste treatment equipment
JP7138302B1 (en) 2021-08-27 2022-09-16 有限会社エスケイエスカンパニー Exterior wall asbestos removal strong suction sander construction method
JP2023032486A (en) * 2021-08-27 2023-03-09 有限会社エスケイエスカンパニー Exterior wall asbestos removal strong suction sander construction method
CN114130144A (en) * 2021-11-18 2022-03-04 安徽皖山食品有限公司 Rice processing is with pressing down dirt recovery unit

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