JPS63236806A - Air stream cleaning vehicle - Google Patents
Air stream cleaning vehicleInfo
- Publication number
- JPS63236806A JPS63236806A JP6963787A JP6963787A JPS63236806A JP S63236806 A JPS63236806 A JP S63236806A JP 6963787 A JP6963787 A JP 6963787A JP 6963787 A JP6963787 A JP 6963787A JP S63236806 A JPS63236806 A JP S63236806A
- Authority
- JP
- Japan
- Prior art keywords
- dust
- plate
- air
- separator
- dust separator
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims description 13
- 239000000428 dust Substances 0.000 claims description 103
- 239000007921 spray Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000010813 municipal solid waste Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Electrostatic Separation (AREA)
- Vehicle Body Suspensions (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は遠心式粉塵分離装置を備えた空気流清掃車に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an airflow cleaning vehicle with a centrifugal dust separator.
従来の技術
従来、前記のように遠心式粉塵分離装置を備えた空気流
清掃車は２例えば米国特許第３５４５１８１号明細書に
開示されているように、石や空き缶などの重いごみをホ
ッパへ収容した後の、細かいどみ（粉塵）を含んだ空気
を遠心式粉塵分離装置の吸引口から分離装置内へ吸引し
、その空気流が渦を巻きながら軸心に沿ってブロアの方
向へ流れる際に、渦巻きの空気流の遠心力によってホッ
パへダイレクトに連通した分離装置の排出口から粉塵を
ホッパへ排出していた。そしてこのような空気流清掃車
においては、路面上のごみをピックアップヘッドに吸込
ませるためにピックアップヘッドの前面側から後方に向
けてごみの種類に応じて所定量の外気（新しい空気）を
ピックアップヘッド内へ吸込ませており、その吸込まれ
た外気量に応じて循環空気中の空気を排気しており、そ
の排気は通常ブロアケーシングの外側面に排気管を連設
し、排気管の空気の通路をレギュレータドアによって調
整して排気流量即ち外気の吸込量を制御していた。BACKGROUND OF THE INVENTION Conventionally, as described above, an airflow cleaning vehicle equipped with a centrifugal dust separator has been used to collect heavy waste such as stones and empty cans into a hopper, as disclosed in U.S. Pat. No. 3,545,181. After that, the air containing fine dust (dust) is sucked into the separator from the suction port of the centrifugal dust separator, and the airflow swirls as it flows along the axis toward the blower. In addition, the centrifugal force of the swirling air flow discharged dust into the hopper from the outlet of the separator, which communicated directly with the hopper. In such an airflow cleaning vehicle, in order to suck the dirt on the road surface into the pick-up head, a predetermined amount of outside air (new air) is pumped into the pick-up head from the front side of the pick-up head toward the rear according to the type of dirt. The air in the circulating air is exhausted according to the amount of outside air that has been sucked in, and the exhaust is normally accomplished by connecting an exhaust pipe to the outside of the blower casing and using the air passage in the exhaust pipe. was adjusted by the regulator door to control the exhaust flow rate, that is, the intake amount of outside air.
発明が解決しようとする問題点
このように空気の渦巻きによって粉塵を分離する方法で
は、粉塵の粒子を勢いよく回すことによって遠心式粉塵
分離装置の内壁に対して遠心力を作用させ、その力で排
出口から粉塵を排出させるので、粉塵が前記内壁に対し
て高速で移動するために内壁の摩耗が早く、その上、極
めて微細な粉塵粒子にはその質量が軽いために充分な遠
心力が作用せず、前記遠心式粉塵分離装置では充分に取
り除くことができなかった。このように分離されなかっ
た極めて微細な粉塵は、ブロア吸入口から再度吸入され
て、まるでショツトブラストマシンのシミツトのように
ブロアのインペラを摩耗する上に、極めて微細な粉塵が
インペラの遠心力によってプロ７ケーシングに激しく衝
突するのでブロアケーシングを著しく摩耗させる、“と
いう問題があり、特に砂や砂利の多い路面を清掃する場
合には１時には僅か１力月程度でブロアとプロ７ケーシ
ングが使用不能となることもあった。そして、木の葉や
紙屑のような軽いごみの清掃のときには前記レギュレー
タドアを全開として多量の外気を吸込むようにするが、
このようなときには排気管から前記の分離装置で分離さ
れない微細な粉塵が大量に排出されるので粉塵公害の問
題となる。などの問題があった。Problems to be Solved by the Invention In this method of separating dust by swirling air, a centrifugal force is applied to the inner wall of the centrifugal dust separator by rotating the dust particles vigorously, and this force is used to Since the dust is discharged from the discharge port, the dust moves at high speed against the inner wall, causing rapid wear on the inner wall.Furthermore, due to the light mass of extremely fine dust particles, sufficient centrifugal force acts on them. Therefore, the centrifugal dust separator could not remove the dust sufficiently. The extremely fine dust that is not separated in this way is re-inhaled from the blower suction port and wears down the blower impeller like smudges in a shot blasting machine. There is a problem that the blower casing is severely worn out because it collides violently with the Pro 7 casing, and especially when cleaning a road surface with a lot of sand or gravel, the blower and Pro 7 casing become unusable after only 1 month at 1 o'clock. When cleaning light debris such as leaves and paper waste, the regulator door is fully opened to suck in a large amount of outside air.
In such a case, a large amount of fine dust that is not separated by the separator is discharged from the exhaust pipe, resulting in a problem of dust pollution. There were other problems.
問題点を解決するための手段
本発明は前記問題を解決するものであって、吸い込みダ
クトの吹出部と遠心式粉塵分離装置の吸引口との間にス
クリーンを貼設し、前記遠心式粉塵分離装置の開放端部
に設けたブロアの送風を圧送ダクト、ピックアップヘッ
ド、吸い込みダクトを経た後に前記スクリーンを介して
前記遠心式粉塵分離装置の吸引口へ循環させるようにし
た空気流清掃車において、前記遠心式粉塵分離装置の吸
引口と前記スクリーンとの間にスクリーン通過後の循環
空気に含まれる粉塵に水分を与える噴霧ノズルを配設し
たことを特徴とする。Means for Solving the Problems The present invention solves the above problems, and includes a screen pasted between the blow-off part of the suction duct and the suction port of the centrifugal dust separator. In the air flow cleaning vehicle, the airflow cleaning vehicle is configured to circulate air from a blower provided at an open end of the device through a pressure duct, a pickup head, a suction duct, and then through the screen to the suction port of the centrifugal dust separator. The present invention is characterized in that a spray nozzle is provided between the suction port of the centrifugal dust separator and the screen to add moisture to the dust contained in the circulating air after passing through the screen.
作用
前記手段によれば、石や空き缶等の重いごみをホッパ内
へ収容した後の循環空気をスクリーンを通過させ、この
スクリーンで軽くて大きなごみを取り除く。次いで、ス
クリーン通過後の、粉塵を大量に含んだ循環空気に噴霧
ノズルにより水を噴霧し、遠心式分離装置の内壁表面に
水膜を形成すると共に、粉塵に水分を含ませてこの水分
により粉塵を互いに吸着させて極めて微細な粉塵の質量
も大きくし、遠心式粉塵分離装置内で作用す、る遠心力
を大きくシ、前記水膜にこの粉塵を付着させて極めて微
細な粉塵も分離する。また、この水膜により粉塵の、内
壁に対する移動速度が低下し。According to the above-mentioned means, the circulating air after storing heavy garbage such as stones and empty cans in the hopper is passed through a screen, and light and large garbage is removed by this screen. Next, after passing through the screen, the circulating air containing a large amount of dust is sprayed with water using a spray nozzle to form a water film on the inner wall surface of the centrifugal separator. The mass of extremely fine dust is increased by adsorbing them to each other, and the centrifugal force acting within the centrifugal dust separator is increased, and the dust is attached to the water film to separate extremely fine dust. In addition, this water film reduces the movement speed of dust toward the inner wall.
内壁の摩耗を少なくする。Reduce wear on inner walls.
実施例
まず、第２図、第３図に基いて空気流清掃車の概要を説
明する。左右の車枠１上に台枠２を固着し１台枠２に遠
心式粉塵分離袋［１３（以下、粉塵分離装置３と記す。Embodiment First, an outline of the airflow cleaning vehicle will be explained based on FIGS. 2 and 3. An underframe 2 is fixed on the left and right car frames 1, and a centrifugal dust separation bag [13 (hereinafter referred to as a dust separation device 3) is attached to each underframe 2.
）が左右方向に略水平状態で溶着されている。粉塵分離
装置１３の開放端にブロアケーシング４を一体に溶着し
、ブロアケーシング４の外側板５に取付けた軸受６によ
りブロア７のインペラ８を回動自在に軸支し、インペラ
８の軸に楔着したＶプーリ９とエンジン１０の出力軸に
取付けたＶプーリ１１にＶベルト１２が懸回されていて
インペラ８が高速に回転される。ブロアケーシング４の
外側板に循環空気を排出する排気管１３を連設し、その
開口部に排気量を調節するレギュレータドア１４が揺動
自在に軸支されていて開口を塞ぐ直立位置から第３図に
点線で示す全開位置に運転席から自由に制御し得るよう
になっている。ブロアケーシング４の下端は圧送ダクト
１５に連結され、圧送ダクト１５がピックアップヘッド
１６に連結されている。) are welded in a substantially horizontal state in the left and right direction. A blower casing 4 is integrally welded to the open end of the dust separator 13, an impeller 8 of the blower 7 is rotatably supported by a bearing 6 attached to the outer plate 5 of the blower casing 4, and a wedge is attached to the shaft of the impeller 8. A V-belt 12 is suspended around the V-pulley 9 attached to the V-pulley 9 and the V-pulley 11 attached to the output shaft of the engine 10, and the impeller 8 is rotated at high speed. An exhaust pipe 13 for discharging circulating air is connected to the outer plate of the blower casing 4, and a regulator door 14 for adjusting the exhaust volume is swingably supported at the opening of the exhaust pipe 13, and a regulator door 14 for adjusting the exhaust volume is pivotally supported at the opening of the exhaust pipe 13. It can be freely controlled from the driver's seat to the fully open position shown by the dotted line in the figure. The lower end of the blower casing 4 is connected to a pressure feeding duct 15, and the pressure feeding duct 15 is connected to a pickup head 16.
ピックアップヘッド１６は左右の側板１７Ａ、１７Ｂに
第６図のように後方の部分をコ字状に折曲成形して後壁
を兼ねた天板１８とピックアップヘッド１６内を上室２
３と下室２４に仕切る斜めの仕切板１９を夫々溶接した
鍍金構成とし、天板１８と仕切板１９の前縁に夫々ゴム
製のフロントフラップ２０．２０を取付け、天板１８の
後壁部の下面にゴム製のリヤフラップ２１．２１を平行
に取付けて循環空気が前後方向に洩れるのを訪いでいる
。天板１８のコ字状に折曲げた下面先端部に風向板２５
をボルト締めし、仕切板１９の折曲面１９Ａと風向板２
５でベンチュリーオリフィスロ２６を形成している。左
右の側板１７Ａ、１７Ｂの卦側に路面に接触して移動す
るダートシュ２７がボルト締めされており、左右の側板
１７Ａ、１７Ｂの内側にはベンチュリーオリフィスロ２
６から吹き出された空気が両側と後方へ流れないように
エヤーディフレクタ２８が取付けである。ピックアップ
ヘッド１６はこのように構成されているので圧送ダクト
１５から送られた空気は第３図で上室２３内を右から左
へと流れると共にオリフィス口２６からベンチュリー効
果によって強い空気流となって路面に向って吹き出し、
下室２４内に流入した空気は右から左へと流九で路面上
のごみを吸い上げて仕切板１９の上面に連結されている
吸い込みダクト３０へと流れて行く、そして、ピックア
ップヘッド１６は台枠２に回動自在に軸支されている軸
３１の両端部に取付けた支持腕３２の先端部に結着され
ているワイヤロープ３３によって吊持されている０台枠
２に取付けである油圧シリンダ３４のピストンロンドの
出没によって軸３１の支持腕３２が揺動されて、軸３１
が所定量だけ回される。従って清掃しないときには油圧
シリンダ３４のピストンロンドが突出して下を向いてい
た支持腕３２が水平方向に揺動されてピックアップヘッ
ド１６が所定量だけ持ち上げられ、路面から離れるよう
になっている。天板１８に取付けたブラケット３６に、
車枠１に揺動自在に軸支されている連杆３７を連結して
ピックアップヘッド１６の前後方向の位置を保持してい
る。前記吸い込みダクト３０のダクト管３０Ａの管口は
。The pickup head 16 has left and right side plates 17A and 17B with the rear portions bent into a U-shape as shown in FIG.
3 and the lower chamber 24 are welded and plated, and rubber front flaps 20 and 20 are attached to the front edges of the top plate 18 and the partition plate 19, respectively, and the rear wall of the top plate 18 is Rubber rear flaps 21 and 21 are attached in parallel to the lower surface of the rear flap to prevent circulating air from leaking in the front-rear direction. A wind direction plate 25 is attached to the tip of the lower surface of the top plate 18 that is bent into a U-shape.
bolts, and connect the bent surface 19A of the partition plate 19 and the wind direction plate 2.
5 forms a venturi orifice slot 26. Dart shoes 27 that move in contact with the road surface are bolted to the left and right side plates 17A and 17B, and venturi orifice slots 2 are installed inside the left and right side plates 17A and 17B.
Air deflector 28 is installed to prevent the air blown out from 6 from flowing to both sides and rearward. Since the pickup head 16 is constructed in this way, the air sent from the pressure duct 15 flows from right to left in the upper chamber 23 as shown in FIG. Blowing out towards the road surface,
The air flowing into the lower chamber 24 flows from right to left, sucking up dirt on the road surface, and flowing into the suction duct 30 connected to the top surface of the partition plate 19. Hydraulic pressure is attached to the frame 2, which is suspended by wire ropes 33 tied to the tips of support arms 32 attached to both ends of a shaft 31 rotatably supported by the frame 2. The support arm 32 of the shaft 31 is swung by the protrusion and retraction of the piston rod of the cylinder 34, and the shaft 31
is rotated by a predetermined amount. Therefore, when cleaning is not being performed, the piston rod of the hydraulic cylinder 34 protrudes and the supporting arm 32, which was facing downward, is swung in the horizontal direction, and the pickup head 16 is lifted by a predetermined amount and is moved away from the road surface. To the bracket 36 attached to the top plate 18,
The longitudinal position of the pickup head 16 is maintained by connecting a connecting rod 37 which is swingably supported by the vehicle frame 1. The mouth of the duct pipe 30A of the suction duct 30 is as follows.
第１図に示すように傾斜面となっているホッパ４０の前
板４１の内壁面に取付けである曲管４４に連通されて、
この曲管４４の開口部にて吸い込みダクト３０の吹出部
４４ａが形成され、吸い込みダクト３０内を送られてき
たごみを吸い上げた空気は前記吹出部４４ａからホッパ
４０内へ放出される。As shown in FIG. 1, it communicates with a curved pipe 44 attached to the inner wall surface of the front plate 41 of the hopper 40, which has an inclined surface.
A blowout section 44a of the suction duct 30 is formed at the opening of the bent pipe 44, and the air that has sucked up the dust sent through the suction duct 30 is discharged from the blowoff section 44a into the hopper 40.
ホッパ４０は天板４６．左側板４７．右側板４８、側板
５４、底板４９．後板５０、略垂直な前板４３．傾斜面
になっている前板４１．４２と上部を後板５０に蝶着さ
れているテールドア５１で囲まれた大きな部屋になって
いる。そして天板４６、左側板４７、右側板４８はホッ
パ４０より前方へ伸びていて粉塵分離装置３、エンジン
１０、水タンク９１等を覆うカバーの役目もしている。The hopper 40 has a top plate 46. Left side plate 47. Right side plate 48, side plate 54, bottom plate 49. A rear plate 50, a substantially vertical front plate 43. It is a large room surrounded by a front plate 41, 42 having an inclined surface and a tail door 51 whose upper part is hinged to a rear plate 50. The top plate 46, left side plate 47, and right side plate 48 extend forward from the hopper 40 and also serve as a cover for the dust separator 3, engine 10, water tank 91, and the like.
ホッパ４０内の上部には、細かいどみ（粉塵）だけが通
過するように金網又はエキスバンドメタルから成るスク
リーン５２が張り渡されている。第４図に示すようにコ
字状に折曲成形したステ一部材５３の両端を、左側板４
７と側板５４に溶着し。A screen 52 made of wire mesh or expanded metal is stretched across the upper part of the hopper 40 so that only fine particles (dust) pass through. As shown in FIG.
7 and welded to the side plate 54.
そのステ一部材５３に、傾斜面になっている前板４２の
上部が溶接されている。傾斜面の前板４１の左端面は左
側板４７に溶着され、右端面が側板５４に溶着されてい
て、前板４２の下方の部分が後記の粉塵貯留箱８０の底
抜となっている。ステ一部材５３と、前板４２に突設し
た取付片４２Ａにコ字状に湾曲させたゴム板５５が取付
けである。The upper part of the front plate 42, which is an inclined surface, is welded to the step member 53. The left end surface of the inclined front plate 41 is welded to the left side plate 47, the right end surface is welded to the side plate 54, and the lower part of the front plate 42 serves as the bottom of a dust storage box 80, which will be described later. A rubber plate 55 curved in a U-shape is attached to the stem member 53 and the attachment piece 42A protruding from the front plate 42.
ホッパ４０から粉塵分離装置Ｉ３に空気が流れる空。Air flows from the hopper 40 to the dust separator I3.
気通路５７となる前板４１の開口の四周には額縁状に轟
接板５８が溶接されている。A frame-shaped contact plate 58 is welded to the four circumferences of the opening of the front plate 41 that forms the air passage 57.
前記ホッパ４０の、前板４１の空気流上流部分には巾方
向に延びたパイプ１００が天板４６から吊下され、この
パイプ１００には複数の（本実施例では３個）の噴霧ノ
ズル１０１が、先端のノズル孔１０１ｄを僅かに空気通
路５７に向けて配設されている。この噴霧ノズル１０１
は、第５図に示すように円錐状のノズル室１０１ａにほ
ぼ接線方向から供給孔１０１ｂが穿設され、その供給孔
１０１ｂに連通ずる接続孔１０１ｃは、前記バイブ１０
０に接続され、このバイブ１００は第７図に示すように
ホース配管工０２により、電磁開閉弁１０３、ポンプ１
０４及びストレーナ１０５を介して水タンク９１に接続
されている。この電磁弁１０３は、ブロア７の駆動と同
時に開状態となるように電気的に接続してあり、この開
閉弁１０３が開くとスクリーン５２を通過した後の、粉
塵を大量に含んだ循環空気全体に対して、ノズル室１０
１ａ内で水が旋回して、先端のノズル孔１０１ｄからシ
ャワーのように水を円錐状に噴霧するようになっている
。尚、スクリーン５２を通過した後の循環空気流量は２
５Ｏｎ？／分程度であり。A pipe 100 extending in the width direction is suspended from the top plate 46 at an air flow upstream portion of the front plate 41 of the hopper 40, and this pipe 100 is equipped with a plurality of (three in this embodiment) spray nozzles 101. However, the nozzle hole 101d at the tip is arranged slightly toward the air passage 57. This spray nozzle 101
As shown in FIG. 5, a supply hole 101b is bored in a conical nozzle chamber 101a from a substantially tangential direction, and a connection hole 101c communicating with the supply hole 101b is connected to the vibrator 10.
As shown in FIG.
04 and a strainer 105 to a water tank 91. This solenoid valve 103 is electrically connected so as to be opened at the same time as the blower 7 is driven, and when this on-off valve 103 is opened, the entire circulating air containing a large amount of dust after passing through the screen 52 For the nozzle chamber 10
Water swirls within 1a, and water is sprayed in a conical shape like a shower from a nozzle hole 101d at the tip. Note that the circulating air flow rate after passing through the screen 52 is 2.
5 On? /minute.
これに対する水量は、２．４４！／分程度である。The amount of water for this is 2.44! /minute.
粉塵分離装置３は、第５図に示すようにその軸心の長手
方向に渡って吸引口６０を設け、その吸引口６０に円筒
の接線方向から空気が流入するように吸引口の部分から
弧状の案内板３Ａが伸びていて粉塵分離装置３は断面が
６字状に成形されている。前記前板４２の上方の部分と
対向して細心の長手方向に亘って排出口６２を設け、排
出口６２は粉塵貯留箱８０に連通している。排出口６２
の下側と案内板３Ａの先端に取付片６３．６４を溶接し
、取付片６３．６４にごみパツキン６５が貼着されてい
て、前記前板４１の当接板５８がゴムパツキン６５に圧
接し、外気がホッパ４０．粉塵貯留箱８０内に流入しな
いようになっている。As shown in FIG. 5, the dust separator 3 is provided with a suction port 60 extending in the longitudinal direction of its axis, and an arc-shaped section is formed from the suction port so that air flows into the suction port 60 from the tangential direction of the cylinder. The guide plate 3A extends, and the dust separator 3 has a 6-shaped cross section. A discharge port 62 is provided in a narrow longitudinal direction opposite to the upper part of the front plate 42, and the discharge port 62 communicates with a dust storage box 80. Discharge port 62
Mounting pieces 63 and 64 are welded to the lower side of the front panel and the tip of the guide plate 3A, and a dust packing 65 is attached to the mounting pieces 63 and 64, and the contact plate 58 of the front plate 41 is pressed against the rubber packing 65. , outside air is sent to the hopper 40. The dust is prevented from flowing into the dust storage box 80.
渦巻流の遠心力によって飛ばされる粉塵を粉塵貯留箱８
０内へ案内する案内板６６を粉塵分離装置３の外周に溶
着し、案内板６６と粉塵分離装置３の外周にシール板６
７が溶着されていて、シール板６７の上面に前記の前板
４２に取付けたゴム板５５が圧着する。粉塵貯留箱８０
左側面を側板６７で塞ぎ、傾斜面になっている前板４２
の下端部が略垂直に下方へ折曲げられていて、折曲げら
れた縁に、薄い鉄板にゴムを貼付けた蓋板６８がボルト
６９で取付けである。蓋板６８のボルト締めする部分に
は鉄板がないので蓋板６８は蝶番で取付けたように開閉
自在の状態で垂下している。傾斜面の前板４１の下方は
第３図のように略垂直に折曲げられて垂直な面４１Ａを
形成し、下端が底板４９に溶着されている。ブロア７が
回転しないときには垂下している蓋板６８の下端は、第
５図で仮想線で図示したように、垂直面４１Ａとの間に
適宜の隙間ｍが設けられていて、ブロア７が回転して粉
塵分離装置３が負圧になるとその負圧力によって蓋板６
８が垂直面４１Ａに吸着されて粉塵貯留箱８０のホッパ
４０に開口した後側面を塞ぐ、このように粉塵貯留箱８
０は傾斜面になっている前板４２．４１、側板５４．６
７と蓋板６８によって構成され、その上部はゴム板５５
によってシールされた箱となっていて粉塵分離装置３の
排出口６２と連通している。尚、第２図で、９２はサイ
ドガード、９３はガラタブルーム、９４はガラタブルー
ム駆動用油圧モータ、９５はホッパ４０をダンプすると
きのダンプ支持軸である。A dust storage box 8 collects dust blown away by the centrifugal force of the swirling flow.
A guide plate 66 that guides the inside of the dust separator 3 is welded to the outer periphery of the dust separator 3, and a seal plate 6 is attached to the guide plate 66 and the outer periphery of the dust separator 3.
7 is welded to the upper surface of the seal plate 67, and a rubber plate 55 attached to the front plate 42 is pressed into contact with the upper surface of the seal plate 67. Dust storage box 80
A front plate 42 whose left side is closed by a side plate 67 and has an inclined surface.
The lower end of the cover plate 68 is bent approximately vertically downward, and a cover plate 68 made of a thin iron plate with rubber pasted thereon is attached with bolts 69 to the bent edge. Since there is no iron plate in the part of the cover plate 68 that is tightened with bolts, the cover plate 68 hangs down so that it can be opened and closed as if attached with a hinge. The lower part of the inclined front plate 41 is bent approximately vertically as shown in FIG. 3 to form a vertical surface 41A, and the lower end is welded to the bottom plate 49. An appropriate gap m is provided between the lower end of the cover plate 68, which hangs down when the blower 7 is not rotating, and the vertical surface 41A, as shown by the imaginary line in FIG. When the dust separator 3 becomes negative pressure, the lid plate 6 is
8 is attracted to the vertical surface 41A and closes the rear side opening to the hopper 40 of the dust storage box 80. In this way, the dust storage box 8
0 has a sloped front plate 42.41 and side plate 54.6
7 and a cover plate 68, the upper part of which is a rubber plate 55.
It is a sealed box and communicates with the discharge port 62 of the dust separator 3. In FIG. 2, 92 is a side guard, 93 is a galata bloom, 94 is a hydraulic motor for driving the galata bloom, and 95 is a dump support shaft when dumping the hopper 40.
ブロア７の回転により送り出された空気は、圧送ダクト
１５を介してピックアップヘッド１６のオリフィス口２
６から路面上に勢いよく吹き付け。The air sent out by the rotation of the blower 7 passes through the pressure duct 15 to the orifice port 2 of the pickup head 16.
From 6 onwards, spray vigorously onto the road surface.
路面上のごみを吸い込みダクト３０から吸い上げて、そ
の吹出部４４ａからホッパ４０へ吐き出す。The garbage on the road surface is sucked up from the suction duct 30 and discharged from the blowing part 44a to the hopper 40.
石とか空き缶などの重いごみを直接ホッパ４０内へ収容
した後の循環空気は、次にスクリーン５２を通過し、こ
こで、循環空気に運ばれた軽くて大きなごみが取除かれ
る。スクリーン５２を通った粉塵を含んだ空気は、後方
から前方へと流れて空気通路５７を通って吸引口６０か
ら粉塵分離装置３内に吸引される。この時、天板に配設
された噴霧ノズル１０１からシャワーのように水が循環
空気に向けて噴霧され、粉塵に水分が与えられてその含
水率が大きくなり、この水分により粉塵が相互に吸着し
て極めて微細な粉塵もより大きな質量の粉塵となる。ま
た、この噴霧された水は、循環空気と共に粉塵分離装置
３に吸い込まれ、粉塵分離装置３の内壁に薄い水膜を形
成する。粉塵分離装置３に吸い込まれた空気はブロア７
の高速回転によって渦巻状に回転しながらインペラ８の
方向へ流れて行く、この時、空気内に含まれている粉塵
は、質量が増加した分だけ大きく作用する遠心力によっ
て内壁の水膜に確実に付着し、その後。After storing heavy debris such as stones and empty cans directly into the hopper 40, the circulating air then passes through a screen 52, where light and large debris carried by the circulating air is removed. The air containing dust that has passed through the screen 52 flows from the rear to the front, passes through the air passage 57, and is sucked into the dust separator 3 through the suction port 60. At this time, water is sprayed like a shower toward the circulating air from the spray nozzle 101 arranged on the top plate, and moisture is added to the dust, increasing its moisture content, and this moisture causes the dust to adsorb to each other. Even extremely fine dust becomes dust with a larger mass. Further, this sprayed water is sucked into the dust separator 3 together with the circulating air, and forms a thin water film on the inner wall of the dust separator 3. The air sucked into the dust separator 3 is passed through the blower 7.
At this time, the dust contained in the air flows in the direction of the impeller 8 while rotating in a spiral shape due to the high speed rotation of the Adhere to and then.
空気の渦巻流によって内壁面上を排出口６２へ向かって
移動する。この時、粉塵は水膜と共に移動することによ
り、乾燥した状態に比べ遅い速度で内壁に対し移動する
ので、内壁面の摩耗が少なくなる。移動してきた粉塵は
、排出口６２から飛び出して案内板６６に当って粉塵貯
留箱８０内へ落下する。落下した粉塵は、前記の如くブ
ロア７が回転している時には蓋板６８が後側面４１Ａに
吸着されているので貯留箱８０内に貯留される。粉塵貯
留箱８０内は蓋板６８が吸着されて粉塵分離装［３内と
同じ負圧状態であるから排出口６２からは粉塵が貯留箱
８０内へ確実に排出される。粉塵貯留箱８０内に粉塵が
貯留されていくと蓋板６８に負圧が作用する受圧面積が
除々に減少していき、吸着力が弱くなって行く、貯留さ
れた粉塵７０の自重と蓋板６８の吸着力のバランスが崩
れると粉塵７０が蓋板６８を押してホッパ４０内へ瞬時
に排出されて再び蓋板６８が吸着される。即ち蓋板６日
はあたかも自動弁のような作用をして、所定量の粉塵７
０を貯留箱８０内に貯えている。The air moves toward the outlet 62 on the inner wall surface due to the swirling flow of air. At this time, the dust moves with the water film and moves toward the inner wall at a slower speed than in a dry state, which reduces wear on the inner wall surface. The moving dust flies out from the discharge port 62, hits the guide plate 66, and falls into the dust storage box 80. The fallen dust is stored in the storage box 80 because the cover plate 68 is attracted to the rear side surface 41A when the blower 7 is rotating as described above. The inside of the dust storage box 80 is in the same negative pressure state as the inside of the dust separator [3] due to the suction of the lid plate 68, so that dust is reliably discharged into the storage box 80 from the discharge port 62. As dust accumulates in the dust storage box 80, the pressure-receiving area where negative pressure acts on the cover plate 68 gradually decreases, and the suction force weakens due to the weight of the accumulated dust 70 and the cover plate. When the balance of the suction force of the dust 70 is lost, the dust 70 pushes the lid plate 68 and is instantly discharged into the hopper 40, whereupon the lid plate 68 is sucked again. In other words, the cover plate acts like an automatic valve and collects a predetermined amount of dust.
0 is stored in the storage box 80.
そしてブロア７の回転を停止すると蓋板６８は垂下状態
となるので貯留箱８０内の粉塵７０は隙間ｍからホッパ
ー４０内へ落下する。こうして粉塵を粉塵分離装置３で
分離した後の清浄な循環空気は、ブロア７に吸い込まれ
、再びインペラ８により吹出ダクトへと送風される。こ
の時、排出管から循環空気の一部がＪｆ５されることが
あっても。Then, when the rotation of the blower 7 is stopped, the cover plate 68 is in a hanging state, so that the dust 70 in the storage box 80 falls into the hopper 40 through the gap m. The clean circulating air after the dust has been separated by the dust separator 3 is sucked into the blower 7, and is again blown into the blow-off duct by the impeller 8. At this time, even if some of the circulating air is discharged from the exhaust pipe.
その空気内には、極めて微細な粉塵も含まれず。There is no extremely fine dust in the air.
粉塵公害を生ずることがない。Does not cause dust pollution.
尚、本実施例では粉塵貯留箱を備えたもので説明したが
、これのないものにも適用できることは言う迄もない。Although this embodiment has been described as having a dust storage box, it goes without saying that the present invention can also be applied to a case without such a dust storage box.
発明の効果
以上のように本発明は、遠心式粉塵分離装置の吸引口に
吸い込まれる。粉塵を大量に含んだ循環空気に噴霧ノズ
ルから水を噴霧するようにしたので、遠心式分離装置の
内壁表面に水膜を形成すると共に、粉塵に水分を含ませ
てこの水分により粉塵を互いに吸着させて極めて微細な
粉塵の質量も大きくでき、これにより遠心式粉塵分離装
置内で作用する遠心力を大きくでき、前記水膜にこの粉
塵を付着させて極めて微細な粉塵も分離することができ
、従って、遠心式粉塵分離装置を経て、ブロアに吸い込
まれる循環空気は極めて微細な粉塵も含まない清浄なも
のとなり、インペラやブロアケーシングの摩耗を防止で
きる上に排気管がら循環空気を排出し゛ても粉塵公害を
招くこともない。Effects of the Invention As described above, according to the present invention, dust is sucked into the suction port of a centrifugal dust separator. Since water is sprayed from the spray nozzle into the circulating air containing a large amount of dust, a water film is formed on the inner wall surface of the centrifugal separator, and the dust is soaked with moisture, which causes the dust to adsorb to each other. In this way, the mass of extremely fine dust can be increased, thereby increasing the centrifugal force acting within the centrifugal dust separator, allowing the dust to adhere to the water film and separating extremely fine dust, Therefore, the circulating air sucked into the blower after passing through the centrifugal dust separator becomes clean and does not contain extremely fine dust, which prevents wear on the impeller and blower casing, and also allows the circulating air to be discharged through the exhaust pipe. It does not cause dust pollution.
また、この水膜により、粉塵の内壁に対する移動速度が
低下し、内壁の摩耗を少なくすることができるという利
点もある。This water film also has the advantage of reducing the movement speed of dust to the inner wall, thereby reducing wear on the inner wall.
第１図は本発明のホッパ部分の断面図で第３図のｎｒ−
ｍＭ面図、第２図は本発明を実施した清掃車の側面図、
第３図は第２図の■−■断面図、第４図は第１図のＩ−
１断面図、第５図は遠心式粉塵分離装置付近の拡大断面
図、第６図は第３図の■−ＩＶ断面図、第７図は噴霧ノ
ズルへの配管接続を示す１図である。FIG. 1 is a sectional view of the hopper portion of the present invention, and FIG.
mm plane view, Figure 2 is a side view of a cleaning vehicle implementing the present invention,
Figure 3 is a sectional view taken from ■-■ in Figure 2, and Figure 4 is a cross-sectional view taken along I-■ in Figure 1.
1 is a cross-sectional view, FIG. 5 is an enlarged cross-sectional view of the vicinity of the centrifugal dust separator, FIG. 6 is a cross-sectional view taken along the line IV in FIG. 3, and FIG. 7 is a diagram showing piping connections to the spray nozzle.
Claims (1)
引口との間にスクリーンを張り渡し、前記遠心式粉塵分
離装置の開放端部に設けたブロアの送風を圧送ダクト、
ピックアップヘッド、吸い込みダクトを経た後に前記ス
クリーンを介して前記遠心式粉塵分離装置の吸引口へ循
環させ、前記遠心式粉塵分離装置でスクリーン通過後の
循環空気中に含まれる粉塵を除去する空気流清掃車にお
いて、前記遠心式粉塵分離装置の吸引口と前記スクリー
ンとの間に前記粉塵に水分を与える噴霧ノズルを配設し
たことを特徴とする空気流清掃車。1. A screen is stretched between the blowing part of the suction duct and the suction port of the centrifugal dust separator, and the air from the blower installed at the open end of the centrifugal dust separator is forced into the duct;
Air flow cleaning in which the air is circulated through the pick-up head and suction duct and then through the screen to the suction port of the centrifugal dust separator, and the centrifugal dust separator removes dust contained in the circulating air after passing through the screen. An air flow cleaning vehicle for a vehicle, characterized in that a spray nozzle for adding moisture to the dust is disposed between a suction port of the centrifugal dust separator and the screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6963787A JPH076172B2 (en) | 1987-03-24 | 1987-03-24 | Air flow cleaning car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6963787A JPH076172B2 (en) | 1987-03-24 | 1987-03-24 | Air flow cleaning car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63236806A true JPS63236806A (en) | 1988-10-03 |
| JPH076172B2 JPH076172B2 (en) | 1995-01-30 |
Family
ID=13408577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6963787A Expired - Fee Related JPH076172B2 (en) | 1987-03-24 | 1987-03-24 | Air flow cleaning car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076172B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516819U (en) * | 1991-08-09 | 1993-03-02 | 豊和工業株式会社 | Air flow cleaning car |
-
1987
- 1987-03-24 JP JP6963787A patent/JPH076172B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516819U (en) * | 1991-08-09 | 1993-03-02 | 豊和工業株式会社 | Air flow cleaning car |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH076172B2 (en) | 1995-01-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |