JPH0123166B2 - - Google Patents
Info
- Publication number
- JPH0123166B2 JPH0123166B2 JP58221787A JP22178783A JPH0123166B2 JP H0123166 B2 JPH0123166 B2 JP H0123166B2 JP 58221787 A JP58221787 A JP 58221787A JP 22178783 A JP22178783 A JP 22178783A JP H0123166 B2 JPH0123166 B2 JP H0123166B2
- Authority
- JP
- Japan
- Prior art keywords
- dust collector
- exhaust gas
- dust
- duct
- gas inlet
- 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
- 239000000428 dust Substances 0.000 claims description 92
- 239000004744 fabric Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 15
- 239000010426 asphalt Substances 0.000 claims description 10
- 239000011362 coarse particle Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 239000010419 fine particle Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 10
- 239000003595 mist Substances 0.000 description 9
- 238000000746 purification Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000234435 Lilium Species 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【発明の詳細な説明】
本発明は、主としてアスフアルトプラントから
発生する排気ガス中のダスト（粉塵）を分離捕集
する集塵装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust collector that separates and collects dust in exhaust gas mainly generated from an asphalt plant.
従来、アスフアルトプラントの骨材乾燥炉から
発生する排ガスを処理する装置は、第１図〜第３
図に示すように骨材乾燥炉ＡとサイクロンＣとが
ダクトＢを介して、かつサイクロンＣとバツグフ
イルタＥとがダクトＥを介してそれぞれ連結され
ていると共に、バツグフイルタＥに排風機Ｆと煙
突Ｇとが連設されて成り、骨材乾燥炉Ａ内の排ガ
スはダクトＢによつてサイクロンＣ内に導かれ、
サイクロンＣ内で排ガスの粗粒子成分が捕集され
て、サイクロンＣの下部から回収されると共に、
サイクロンＣ内を通つた排ガスはダクトＤによつ
てバツグフイルタＥ内に送られて、バツグフイル
タＥ内で排ガス中の微粒子成分が捕集されて、バ
ツグフイルタＥの下部に設けられたスクリユコン
ベア１及びロータリバルブ２を介して回収され、
かつバツグフイルタＥ内で浄化された排ガスは排
風機Ｆを介して煙突Ｇから排出されるようになつ
ている。 Conventionally, equipment for treating exhaust gas generated from aggregate drying furnaces in asphalt plants is shown in Figures 1 to 3.
As shown in the figure, an aggregate drying furnace A and a cyclone C are connected through a duct B, and a cyclone C and a bag filter E are connected through a duct E, and the bag filter E is connected to an exhaust fan F and a chimney G. The exhaust gas in the aggregate drying furnace A is guided into the cyclone C by the duct B,
Coarse particle components of exhaust gas are collected in cyclone C and recovered from the lower part of cyclone C,
The exhaust gas that has passed through the cyclone C is sent into the bag filter E through the duct D, where particulate components in the exhaust gas are collected and transferred to the screw conveyor 1 and the rotary rotor provided at the bottom of the bag filter E. recovered via valve 2;
The exhaust gas purified within the bag filter E is discharged from the chimney G via the exhaust fan F.
しかしながら、上記のように構成された装置に
あつては、骨材乾燥炉ＡとサイクロンＣとの間の
ダクトＢ及びサイクロンＣとバツグフイルタＥと
の間のダクトＤは外部に露出しているため、これ
らのダクトＢ，Ｄから外部に逃げる放散熱が、例
えば1tonプラントにおいて約10×104kcal／ｈと
大きく、エネルギー損失が極めて大きいという問
題があり、排ガスの保有熱エネルギーが何ら回収
されずに非常に無駄になつていると共に、ダクト
Ｂ，Ｄによつて排ガスがあまり冷却されると、バ
ツグフイルタＥ内で排ガス中に含まれる水蒸気が
凝結して、バツグフイルタＥ内の濾布３を目詰ま
りさせて、バツグフイルタＥの集塵効率を低下さ
せるおそれがある。また、サイクロンＣ及びバツ
グフイルタＥとダクトＢ，Ｄとの接合部は、ダク
トＢのフランジ部４とサイクロンＣのガス入口部
のフランジ部５とが、かつサイクロンＣの排ガス
出口部のフランジ部６とダクトＤの一端のフラン
ジ部７とが、さらにダクトＤの他端のフランジ部
８とバツグフイルタＥのガス入口部のフランジ部
９とが、それぞれボルト等によつて連結されるよ
うに構成されているため、各部の加工及び組立作
業に手間がかかり、設備費が多大になる。そのう
え、骨材乾燥炉Ａのバーナ調整の際などにおい
て、未燃ミストが発生した場合、その未燃ミスト
が濾布に付着して濾布を損傷、あるいは焼損する
という問題がある。 However, in the apparatus configured as described above, the duct B between the aggregate drying furnace A and the cyclone C and the duct D between the cyclone C and the bag filter E are exposed to the outside. There is a problem that the heat radiated outside from these ducts B and D is as large as approximately 10 x 10 4 kcal/h in a 1 ton plant, resulting in extremely large energy loss, and the thermal energy retained in the exhaust gas is not recovered at all. If the exhaust gas is cooled too much by the ducts B and D, the water vapor contained in the exhaust gas will condense in the bag filter E and clog the filter cloth 3 in the bag filter E. Therefore, the dust collection efficiency of the bag filter E may be reduced. Furthermore, at the joints between the cyclone C and bag filter E and the ducts B and D, the flange portion 4 of the duct B and the flange portion 5 of the gas inlet portion of the cyclone C, and the flange portion 6 of the exhaust gas outlet portion of the cyclone C are connected. A flange portion 7 at one end of the duct D, a flange portion 8 at the other end of the duct D, and a flange portion 9 at the gas inlet portion of the bag filter E are connected by bolts or the like. Therefore, processing and assembling each part takes time and equipment costs. Moreover, when unburned mist is generated during burner adjustment of the aggregate drying furnace A, there is a problem that the unburned mist adheres to the filter cloth and damages or burns out the filter cloth.
本発明は、外筒の中心部に内筒が仕切壁を上に
開口してほぼ垂直に設けられ排ガスを上記外筒と
内筒の間で旋回させて排ガス中に含まれている粗
粒子を遠心力や慣性力を利用して捕集する第１集
塵機と、濾過室に濾布を備え上記排ガス中の微粒
子を濾布で捕集する第２集塵機とを上記第１集塵
機の排ガス出口を上記第２集塵機の排ガス入口に
直結して一体的に設け、排ガスを上記第１集塵機
に導く導入ダクトを、第２集塵機の浄化ガス出口
の部分に排気ガス入口を配するとともに、該排気
ガス入口側を上に、かつ第１集塵機側を下にして
上記第２集塵機の濾過室内を斜めに貫通して上記
第１集塵機の外筒に連設し、上記導入ダクトの排
気ガス入口と第２集塵機の浄化ガス出口の間に開
閉蓋を備えたバイパスダクトを設ける一方、上記
第１集塵機の外筒の下部に、下端に捕集口を有す
るダクト回収部を上記導入ダクトとほぼ同一方向
を指向して設けた構成としたことにより、上記従
来の問題を解消したもので、構造が簡単で、製作
が容易な上に、排ガスが保有する熱エネルギーを
損失することが少なく、濾布に対する未燃ミスト
の付着を簡単に防止できるとともに、集塵効率の
極めて高いアスフアルトプラント等における集塵
装置を提供することを目的とする。 In the present invention, an inner cylinder is provided almost vertically in the center of the outer cylinder with a partition wall opening upward, and the exhaust gas is swirled between the outer cylinder and the inner cylinder to remove coarse particles contained in the exhaust gas. A first dust collector that collects particles using centrifugal force or inertial force, and a second dust collector that has a filter cloth in the filtration chamber and uses the filter cloth to collect fine particles in the exhaust gas, are connected to the exhaust gas outlet of the first dust collector. An introduction duct which is directly connected to and integrally connected to the exhaust gas inlet of the second dust collector and which guides the exhaust gas to the first dust collector is provided, and the exhaust gas inlet is disposed at the purified gas outlet of the second dust collector, and the exhaust gas inlet is arranged on the exhaust gas inlet side. is connected to the outer cylinder of the first dust collector by diagonally penetrating the filtration chamber of the second dust collector with the first dust collector side facing down, and connecting the exhaust gas inlet of the introduction duct and the second dust collector. A bypass duct with an opening/closing lid is provided between the purified gas outlet, and a duct collection section having a collection port at the lower end is oriented in substantially the same direction as the introduction duct at the lower part of the outer cylinder of the first dust collector. By adopting this configuration, the above conventional problems have been solved.The structure is simple and easy to manufacture, and there is little loss of thermal energy held by exhaust gas, and it is possible to reduce the amount of unburned mist on the filter cloth. It is an object of the present invention to provide a dust collector for an asphalt plant or the like that can easily prevent adhesion and has extremely high dust collection efficiency.
以下、図面を参照して本発明を具体的に説明す
る。 Hereinafter, the present invention will be specifically explained with reference to the drawings.
第４図ないし第７図は本発明の一実施例を示す
もので、図中符号１０は本発明に係る集塵装置で
あり、この集塵装置１０は、アスフアルトプラン
トの骨材乾燥炉１１内の排気ガスからダスト（粉
塵）を捕集して、浄化した排気ガスを排風機１２
を介して煙突１３から外部に排出するように構成
されている。 4 to 7 show one embodiment of the present invention, and the reference numeral 10 in the figures is a dust collector according to the present invention, and this dust collector 10 is installed in an aggregate drying furnace 11 of an asphalt plant. Collects dust from the exhaust gas and sends the purified exhaust gas to the exhaust fan 12.
It is configured to be discharged to the outside from the chimney 13 via the chimney 13.
上記集塵装置１０は、排気ガス中の粗粒子を遠
心力あるいは慣性力を利用して捕集する第１集塵
機１４と排気ガス中の微粒子を濾過することによ
り補集する第２集塵機１５とが集塵機本体Ｂに一
体的に連結されていると共に、第１集塵機１４
が、第２集塵機１５の複数の濾布１６を配設した
濾過室Ｘの一方の側面上部（第５図において右側
面上部）から濾過室Ｘの他方の側面下部（第５図
において左側面下部）にかけて、濾過室Ｘ内部を
貫通して設けられている導入ダクト１７に連結さ
れて構成されている。また、第１集塵機１４は、
上記第２集塵機１５の濾過室Ｘと第１集塵機１４
とを仕切る仕切壁１８の下面に固設された外筒１
９と、仕切壁１８の中央部に穿設された孔に上端
を嵌入させた内筒２０とから構成されており、第
１集塵機１４の下部の一対のダスト回収部１４ｂ
はその上端が、前記集塵機本体Ｂの一側下部にフ
ランジ結合されており、その下端には捕集したダ
ストを回収する捕集口１４ａが設けられている。
なお、ダスト回収部１４ｂは、第５図に示すよう
に導入ダクト１７とほぼ同一方向に傾斜して設け
られている。 The dust collector 10 includes a first dust collector 14 that collects coarse particles in exhaust gas using centrifugal force or inertial force, and a second dust collector 15 that collects fine particles in exhaust gas by filtering them. It is integrally connected to the dust collector main body B, and the first dust collector 14
, from the upper part of one side of the filtration chamber X where the plurality of filter cloths 16 of the second dust collector 15 are arranged (the upper right side in FIG. ), and is connected to an introduction duct 17 provided penetrating the inside of the filtration chamber X. Further, the first dust collector 14 is
The filtration chamber X of the second dust collector 15 and the first dust collector 14
An outer cylinder 1 fixed to the lower surface of a partition wall 18 that partitions the
9, and an inner cylinder 20 whose upper end is fitted into a hole bored in the center of the partition wall 18, and a pair of dust collecting parts 14b at the lower part of the first dust collector 14
The upper end thereof is flange-bonded to the lower part of one side of the dust collector body B, and the lower end thereof is provided with a collection port 14a for collecting the collected dust.
Note that the dust collection section 14b is provided so as to be inclined in substantially the same direction as the introduction duct 17, as shown in FIG.
さらに、第２集塵機１５の濾過室Ｘの上部に、
ベンチユリシート２１を介して浄化ガス室Ｙが設
けられており、浄化ガス室Ｙの一方の側壁（第５
図において右側壁）に浄化ガス出口２２が形成さ
れている。なお、ダクト１７の排気ガス入口１７
ａは浄化ガス出口２２の下に配設されている。そ
して、第２集塵機１５の下部のダスト捕集部１５
ａは、その上端が前記集塵機本体Ｂの下端にフラ
ンジ結合されており、その下端には、捕集したダ
ストを移送するスクリユコンベア２３と、このス
クリユコンベア２３に連結されたロータリバルブ
２４とが設けられている。 Furthermore, in the upper part of the filtration chamber X of the second dust collector 15,
A purification gas chamber Y is provided through a bench lily sheet 21, and one side wall (the fifth
A purification gas outlet 22 is formed on the right side wall (in the figure). Note that the exhaust gas inlet 17 of the duct 17
a is arranged below the purification gas outlet 22. Then, the dust collecting section 15 at the lower part of the second dust collector 15
A has an upper end flange connected to the lower end of the dust collector main body B, and a screw conveyor 23 for transferring the collected dust and a rotary valve 24 connected to the screw conveyor 23. is provided.
上記導入ダクト１７の排気ガス入口１７ａ側
は、接続ダクト（図示せず）を介して、排気ガス
の発生源であるアスフアルトプラントの骨材乾燥
炉１１に接続され、また、該排気ガス入口１７ａ
側に、バイパスダクト２５が、導入ダクト１７か
ら分岐して浄化ガス室Ｙの浄化ガス出口２２に連
通しており、このバイパスダクト２５の浄化ガス
室Ｙ側に開口したガス出口２５ａには、開閉蓋２
６が設けられている。この開閉蓋２６は、その取
手２６ａにロツド２７ａの先端が取付けられ、か
つシリンダ本体２７ｂが取付部材２８を介して第
２集塵機１５の上面に取付けられたシリンダ装置
２７により、上下に移動されて上気ガス出口２５
ａを開閉するようになつている。 The exhaust gas inlet 17a side of the introduction duct 17 is connected to the aggregate drying furnace 11 of the asphalt plant, which is the source of exhaust gas, via a connecting duct (not shown), and the exhaust gas inlet 17a
On the side, a bypass duct 25 branches from the introduction duct 17 and communicates with the purification gas outlet 22 of the purification gas chamber Y. Lid 2
6 is provided. The opening/closing lid 26 is moved up and down by a cylinder device 27 in which the tip of a rod 27a is attached to a handle 26a and a cylinder body 27b is attached to the upper surface of the second dust collector 15 via a mounting member 28. Air gas outlet 25
A can be opened and closed.
次に、上記のように構成された集塵装置の作用
について説明する。 Next, the operation of the dust collector configured as described above will be explained.
まず、アスフアルトプラントの骨材乾燥炉１１
が通常運転をしている状態においては、シリンダ
装置２７により、開閉蓋２６は閉じられており、
骨材乾燥炉１１から排出された排気ガスは、接続
ダクト（図示せず）を経て集塵装置１０の導入ダ
クト１７の排気ガス入口１７ａから導き入れら
れ、導入ダクト１７内を通つて第１集塵機１４に
送られる。導入ダクト１７内を排気ガスが通過す
る際、排気ガスの保有する熱は、導入ダクト１７
を介して第２集塵機１５の濾過室Ｘ内に伝わり、
濾過室Ｘ内を暖める。そして、導入ダクト１７内
を通つて第１集塵機１４内に送られた排ガスは、
内筒２０の外周に沿つて施回した後、内筒２０の
内部を通つて第２集塵機１５の濾過室Ｘに送られ
る。この時、排気ガスの中に含まれるダストのう
ち粗粒子成分は、第１集塵機１４の下部の捕集口
１４ａから回収され骨材の一部として再利用され
る。さらに、第２集塵機１５の濾過室Ｘ内に送ら
れた排気ガスは、濾布１６によつて排気ガス中に
含まれるダストのうち微粒子成分を捕集されて浄
化され、ベンチユリシート２１を通つて浄化ガス
室Ｙに送られる。この時、捕集された微粒子成分
は、第２集塵機１５の下部にたまり、スクリユコ
ンベア２３によつて一端に移送されて、ロータリ
バルブ２４を介して回収され石粉の一部として再
利用される。浄化ガス室Ｙに送られた排気ガス
は、浄化ガス出口２２を通つて、排風機１２によ
り、煙突１３から外部に排出される。 First, the aggregate drying furnace 11 of the asphalt plant
During normal operation, the opening/closing lid 26 is closed by the cylinder device 27.
Exhaust gas discharged from the aggregate drying furnace 11 is introduced from the exhaust gas inlet 17a of the introduction duct 17 of the dust collector 10 through a connecting duct (not shown), and passes through the introduction duct 17 to the first dust collector. Sent to 14th. When the exhaust gas passes through the introduction duct 17, the heat held by the exhaust gas is transferred to the introduction duct 17.
is transmitted to the filtration chamber X of the second dust collector 15 via
Warm up the inside of filtration chamber X. The exhaust gas sent into the first dust collector 14 through the introduction duct 17 is
After passing along the outer circumference of the inner cylinder 20, the dust is sent to the filtration chamber X of the second dust collector 15 through the inside of the inner cylinder 20. At this time, coarse particle components of the dust contained in the exhaust gas are collected from the collection port 14a at the bottom of the first dust collector 14 and reused as part of the aggregate. Furthermore, the exhaust gas sent into the filtration chamber The gas is then sent to the purification gas chamber Y. At this time, the collected particulate components accumulate at the bottom of the second dust collector 15, are transferred to one end by the screw conveyor 23, are collected via the rotary valve 24, and are reused as part of the stone powder. . The exhaust gas sent to the purified gas chamber Y passes through the purified gas outlet 22 and is discharged to the outside from the chimney 13 by the exhaust fan 12.
また、アスフアルトプラントの骨材乾燥炉１１
内を加熱するバーナ装置調整時あるいは不具合時
に発生する未燃ミスト（液状成分）は、従来のノ
ツクアウトボツクス等のプレダスタでは、ほとん
ど捕集されず、プレダスタの後段に配置されてい
るバツグフイルタの濾布を損傷して集塵効率を低
下させていたが、本発明にかかる集塵装置におい
ては、遠心力、慣性力利用の第１集塵機１４が未
燃ミストの大部分を捕捉するので、第２集塵機１
５の濾布１６に未燃ミストが吸着することが少な
く、集塵効率を低下させることはない。さらに、
バーナー調整時に、未燃ミストによつて第２集塵
機１５の濾布１６が焼損するおそれがある場合に
は、一時的にシリンダ装置２７を作動させて、開
閉蓋２６を開き、導入ダクト１７と浄化ガス室Ｙ
を連通させ、排気ガスが直接浄化ガス出口２２か
ら排出されるようにする。 In addition, asphalt plant aggregate drying furnace 11
Unburnt mist (liquid component) generated when adjusting the burner device that heats the interior or when a malfunction occurs is hardly collected by conventional pre-dusters such as knock-out boxes, and is collected by the filter cloth of the bag filter located after the pre-duster. However, in the dust collector according to the present invention, since the first dust collector 14 that uses centrifugal force and inertial force captures most of the unburned mist, the second dust collector 1
Unburnt mist is rarely adsorbed on the filter cloth 16 of No. 5, and the dust collection efficiency is not reduced. moreover,
When adjusting the burner, if there is a risk that the filter cloth 16 of the second dust collector 15 may be burnt out due to unburned mist, the cylinder device 27 is temporarily activated, the opening/closing lid 26 is opened, and the introduction duct 17 and purifying Gas chamber Y
are communicated with each other so that the exhaust gas is directly discharged from the purified gas outlet 22.
なお、本発明に係る集塵装置１０はアスフアル
トプラントの骨材乾燥炉１１から発生する排気ガ
スの浄化に使用されるだけでなく、ドラムミキサ
やアスフアルト再生プラント等に使用してもよ
く、また、一般に排気ガスからダスト（粉塵）を
捕集する必要がある場合に用いることができる。 Incidentally, the dust collector 10 according to the present invention is not only used for purifying exhaust gas generated from the aggregate drying furnace 11 of an asphalt plant, but also can be used for a drum mixer, an asphalt regeneration plant, etc. It can be used when it is necessary to collect dust from exhaust gas.
以上、説明したように、本発明は、外筒の中心
部に内筒が仕切壁を上に開口してほぼ垂直に設け
られ排ガスを上記外筒と内筒の間で施回させて排
ガス中に含まれている粗粒子を遠心力や慣性力を
利用して捕集する第１集塵機と、濾過室に濾布を
備え上記排ガス中の微粒子を濾布で捕集する第２
集塵機とが上記第１集塵機の排ガス出口を上記第
２集塵機の排ガス入口に直結して一体的に設けら
れ、排ガスを上記第１集塵機に導く導入ダクト
が、第２集塵機の浄化ガス出口の部分に排気ガス
入口を配するとともに、該排気ガス入口側を上
に、かつ第１集塵機側を下にして上記第２集塵機
の濾過室内を斜めに貫通して上記第１集塵機の外
筒に連設され、上記導入ダクトの排気ガス入口と
第２集塵機の浄化ガス出口の間には開閉蓋を備え
たバイパスダクトが設けられる一方、上記第１集
塵機の外筒の下部に、下端に捕集口を有するダス
ト回収部が上記導入ダクトとほぼ同一方向を指向
して設けられた構成とされているので、従来装置
に比べて設置するダクトを少くすることができ、
部品数の削減をはかれ、構造が簡単で製作が容易
な上に、外部に熱を放散することが少なく、ガス
の持つ熱エネルギーを損失することが少ない。ま
た導入ダクトが放熱面積を広くして斜めに第２集
塵機内を通るので、第２集塵機が効率的に暖めら
れ、集塵機内で温度低下による水蒸気の凝結が起
らず、集塵機の濾布が目詰まりすることがない。
しかも、開閉蓋を開くことにより、排ガスを第２
集塵機の濾布を通すことなくバイパスダクトから
放出できるので、バーナ調整時等において未燃ミ
ストが発生しても、濾布に対する未燃ミストの付
着を阻止して濾布の損傷、あるいは焼損等を防止
することができる。 As explained above, in the present invention, an inner cylinder is provided almost vertically in the center of an outer cylinder with a partition wall opening upward, and the exhaust gas is circulated between the outer cylinder and the inner cylinder. a first dust collector that collects coarse particles contained in the exhaust gas using centrifugal force or inertial force, and a second dust collector that has a filter cloth in the filtration chamber and uses the filter cloth to collect fine particles in the exhaust gas.
A dust collector is integrally provided by directly connecting the exhaust gas outlet of the first dust collector to the exhaust gas inlet of the second dust collector, and an introduction duct for guiding the exhaust gas to the first dust collector is provided at the purified gas outlet of the second dust collector. An exhaust gas inlet is provided, and the filter is connected to the outer cylinder of the first dust collector by diagonally penetrating the filter chamber of the second dust collector with the exhaust gas inlet side facing up and the first dust collector side facing down. A bypass duct with an opening/closing lid is provided between the exhaust gas inlet of the introduction duct and the purified gas outlet of the second dust collector, and a collection port is provided at the lower end of the outer cylinder of the first dust collector. Since the dust collection section is configured to be oriented in almost the same direction as the introduction duct, the number of ducts to be installed can be reduced compared to conventional devices.
It reduces the number of parts, has a simple structure, and is easy to manufacture. It also radiates less heat to the outside and less loses the thermal energy of the gas. In addition, since the introduction duct has a wide heat dissipation area and passes diagonally through the second dust collector, the second dust collector is efficiently heated, and water vapor does not condense inside the dust collector due to a drop in temperature. It never gets clogged.
Moreover, by opening the opening/closing lid, exhaust gas can be
Since it can be discharged from the bypass duct without passing through the filter cloth of the dust collector, even if unburned mist is generated during burner adjustment, it will prevent the unburned mist from adhering to the filter cloth and prevent damage to the filter cloth or burnout. It can be prevented.
また、導入ダクトは排ガスを第１集塵機の捕集
口に向けて斜め下に導き、第１集塵機に送り込む
ので、排ガス中の粗粒子を効果的に捕集すること
ができる。 Moreover, since the introduction duct guides the exhaust gas obliquely downward toward the collection port of the first dust collector and sends it to the first dust collector, coarse particles in the exhaust gas can be effectively collected.
第１図ないし第３図は従来の集塵装置を示すも
ので、第１図は排ガス処理の系統図、第２図は正
面図、第３図は側面図、第４図ないし第７図は本
発明の一実施例を示すもので、第４図は系統図、
第５図は正面図、第６図は側面図、第７図は第５
図の−線に沿う断面図である。
１４……第１集塵機、１４ａ……捕集口、１４
ｂ……ダスト回収部、１５……第２集塵機、１６
……濾布、１７……導入ダクト、１７ａ……排気
ガス入口、１８……仕切壁、１９……外筒、２０
……内筒、２２……浄化ガス出口、２５……バイ
パスダクト、２６……開閉蓋、Ｘ……濾過室。
Figures 1 to 3 show conventional dust collectors. Figure 1 is a system diagram for exhaust gas treatment, Figure 2 is a front view, Figure 3 is a side view, and Figures 4 to 7 are This shows one embodiment of the present invention, and FIG. 4 is a system diagram;
Figure 5 is a front view, Figure 6 is a side view, and Figure 7 is a front view.
FIG. 3 is a sectional view taken along the - line in the figure. 14...First dust collector, 14a...Collection port, 14
b...Dust collection section, 15...Second dust collector, 16
... Filter cloth, 17 ... Introductory duct, 17a ... Exhaust gas inlet, 18 ... Partition wall, 19 ... Outer cylinder, 20
... Inner cylinder, 22 ... Purified gas outlet, 25 ... Bypass duct, 26 ... Opening/closing lid, X ... Filtration chamber.
Claims (1)
上に開口してほぼ垂直に設けられ排ガスを上記外
筒１９と内筒２０の間で施回させて排ガス中に含
まれている粗粒子を遠心力や慣性力を利用して捕
集する第１集塵機１４と、濾過室Ｘに濾布１６を
備え上記排ガス中の微粒子を濾布１６で捕集する
第２集塵機１５とが上記第１集塵機１４の排ガス
出口を上記第２集塵機１５の排ガス入口に直結し
て一体的に設けられ、排ガスを上記第１集塵機１
４に導く導入ダクト１７が、第２集塵機１５の浄
化ガス出口２２の部分に排気ガス入口１７ａを配
するとともに、該排気ガス入口１７ａ側を上に、
かつ第１集塵機１４側を下にして上記第２集塵機
１５の濾過室Ｘ内を斜めに貫通して上記第１集塵
機１４の外筒１９に連設され、上記導入ダクト１
７の排気ガス入口１７ａと第２集塵機１５の浄化
ガス出口２２の間には開閉蓋２４を備えたバイパ
スダクト２５が設けらる一方、上記第１集塵機１
４の外筒１９の下部に、下端に捕集口１４ａを有
するダスト回収部１４ｂが上記導入ダクト１７と
ほぼ同一方向を指向して設けられて成ることを特
徴とするアスフアルトプラント等における集塵装
置。1. An inner cylinder 20 is provided almost vertically in the center of the outer cylinder 19 with the partition wall 18 opening upward, and the exhaust gas is circulated between the outer cylinder 19 and the inner cylinder 20 to be contained in the exhaust gas. The first dust collector 14 that collects coarse particles using centrifugal force or inertial force, and the second dust collector 15 that is equipped with a filter cloth 16 in the filtration chamber X and that collects fine particles in the exhaust gas with the filter cloth 16 are as described above. The exhaust gas outlet of the first dust collector 14 is directly connected to the exhaust gas inlet of the second dust collector 15, and the exhaust gas is directly connected to the exhaust gas inlet of the second dust collector 15.
4, an exhaust gas inlet 17a is disposed at the purified gas outlet 22 of the second dust collector 15, and the exhaust gas inlet 17a side is placed upward.
The introduction duct 1 is connected to the outer cylinder 19 of the first dust collector 14 by diagonally penetrating the inside of the filtration chamber X of the second dust collector 15 with the first dust collector 14 side facing down.
A bypass duct 25 equipped with an opening/closing lid 24 is provided between the exhaust gas inlet 17a of the first dust collector 1 and the purified gas outlet 22 of the second dust collector 15.
A dust collection device for an asphalt plant or the like, characterized in that a dust collection section 14b having a collection port 14a at the lower end is provided in the lower part of the outer cylinder 19 of No. 4, oriented in substantially the same direction as the introduction duct 17. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58221787A JPS60114320A (en) | 1983-11-25 | 1983-11-25 | Dust collector in asphalt plant or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58221787A JPS60114320A (en) | 1983-11-25 | 1983-11-25 | Dust collector in asphalt plant or the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60114320A JPS60114320A (en) | 1985-06-20 |
| JPH0123166B2 true JPH0123166B2 (en) | 1989-05-01 |
Family
ID=16772192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58221787A Granted JPS60114320A (en) | 1983-11-25 | 1983-11-25 | Dust collector in asphalt plant or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60114320A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2528608Y2 (en) * | 1992-04-27 | 1997-03-12 | 兼松エンジニアリング株式会社 | Dry powder suction pressure feeding tank |
| JP4915508B2 (en) * | 2006-07-27 | 2012-04-11 | 信六 西山 | Deodorizing method using bag filter type dust collector and deodorizing device for bag filter type dust collector |
| EP2058044B1 (en) | 2006-11-06 | 2011-01-05 | Mitsubishi Heavy Industries, Ltd. | Dust collector |
| WO2012029116A1 (en) * | 2010-08-31 | 2012-03-08 | 三菱重工業株式会社 | Planetary gear mechanism and wind-powered power generation device |
| CN102872672A (en) * | 2012-10-18 | 2013-01-16 | 无锡锡通工程机械有限公司 | Environment-friendly dust removing device of asphalt mixture equipment |
| CN110575716A (en) * | 2019-10-11 | 2019-12-17 | 江苏润广环保科技有限公司 | Environment-friendly dust collection and filtration device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS439185Y1 (en) * | 1967-07-06 | 1968-04-22 | ||
| JPS5610315A (en) * | 1979-07-06 | 1981-02-02 | Nichidoku Jukogyo Kk | Dust collector |
-
1983
- 1983-11-25 JP JP58221787A patent/JPS60114320A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS439185Y1 (en) * | 1967-07-06 | 1968-04-22 | ||
| JPS5610315A (en) * | 1979-07-06 | 1981-02-02 | Nichidoku Jukogyo Kk | Dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60114320A (en) | 1985-06-20 |
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