JP3656269B2

JP3656269B2 - Aggregate receiving device

Info

Publication number: JP3656269B2
Application number: JP07344495A
Authority: JP
Inventors: 澄夫竹中; 晋作手島
Original assignee: 日工株式会社
Priority date: 1995-03-30
Filing date: 1995-03-30
Publication date: 2005-06-08
Anticipated expiration: 2020-06-08
Also published as: JPH08269909A

Description

【０００１】
【産業上の利用分野】
本発明は、ダンプトラックにより運搬されてくる骨材を受け入れる受材装置に関し、特に受材ホッパへの骨材受入れ時に発生する粉塵の飛散防止を極力少なくできるようにした受材装置に関する。
【０００２】
【従来の技術】
例えば、道路舗装材であるアスファルト合材の製造方式にサテライト方式というものが考えられている。このサテライト方式とは、都市部より離れたプラントの設置規制の緩やかな場所にメイン基地として公知のアスファルトプラントを設置し、設置規制の厳しい都市部には、図４に示すような、騒音等の発生を少なくしたアスファルト合材製造装置であるサテライトプラントを設置し、メイン基地のアスファルトプラントにより製造した加熱骨材をダンプトラック１によって各地のサテライトプラントに運搬し、サテライトプラントではその加熱骨材に溶融アスファルトや石粉等の材料を加えて混合してアスファルト合材を製造し、各施工現場に出荷する。
【０００３】
このサテライトプラントにおいてはダンプトラック１により運搬された加熱骨材を受材ホッパ２に一旦受け入れ、受材ホッパ２から引出しコンベヤ３にて引き出し、垂直搬送装置４のバケット５によって移送してサテライトプラントの本体６の上部に配設したホットビン７に一時貯蔵し、出荷要請に基づいてホットビン７の下位に配設された計量槽８に払い出し、所定量計量して他の材料と共にミキサ９に投入して混合し、アスファルト合材として出荷する。
【０００４】
この時、サテライトプラントに運搬される加熱骨材は加熱乾燥させているためにダスト分が離散し易く、ダンプトラック１から受材ホッパ２に加熱骨材を投入する際にはダスト分が粉塵として舞い上がり、この粉塵が周囲に飛散することが考えられる。そこでこの粉塵の飛散を防止するために、図４の仮想線で示すようにダンプトラック１を収納する建屋を設置することも一案として考えられる。
【０００５】
【発明が解決しようとする課題】
しかしながら、上記のように、建屋にダンプトラックごと収納するとなると、その建屋の内容積は大きいものが必要であり、その建屋内に充満する粉塵を吸引するのには大型の排風機や集塵装置が必要で、コストがかかることになる。
【０００６】
本発明は上記の点に鑑み、低コストで骨材荷卸し時の粉塵の飛散を防止することのできる受材装置を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明は上記の目的を達成するために、請求項１記載の受材装置は、ダンプトラックにより運搬された骨材を受材ホッパにより受け止めて所定の貯蔵設備に骨材配送手段により配送するようにした受材装置において、前記受材ホッパの上部に受材ホッパの上部開口を覆うカバー体を配設し、該カバー体には前記ダンプトラックの荷台の後部端を進入させて骨材の投入を行うトラック進入口を配設すると共に、該トラック進入口には可撓性材料よりなり縦方向に切れ目を有する暖簾状遮蔽材を垂設する一方、前記トラック進入口の両内側部に可撓性材料よりなり横方向に切れ目を有する遮蔽材を配設したことを特徴としている。
【０００８】
また、請求項２記載の受材装置は、ダンプトラックにより運搬された骨材を受材ホッパにより受け止めて所定の貯蔵設備に骨材配送手段により配送するようにした受材装置において、前記受材ホッパの上部に受材ホッパの上部開口を覆うカバー体を配設し、該カバー体には前記ダンプトラックの荷台の後部端を進入させて骨材の投入を行うトラック進入口を配設すると共に、該トラック進入口には可撓性材料よりなり縦方向に切れ目を有する暖簾状遮蔽材を垂設する一方、前記カバー体にカバー体内の粉塵を回収する集塵装置を備え、該集塵装置により回収した粉塵は前記骨材配送手段により搬送される骨材に還元するように構成したことを特徴としている。
【００１０】
【作用】
本発明の請求項１記載の受材装置によれば、ダンプトラックより受材ホッパに骨材を受け入れる場合、受材ホッパ上部に配設したカバー体のトラック進入口にダンプトラックの後部端を進入させて骨材の荷卸しを行なうので、前記カバー体により骨材の荷卸し時のダンプトラックの後部端を覆うと共に、前記カバー体のトラック進入口に垂設した暖簾状遮蔽材によりダンプトラックの荷台とトラック進入口を遮蔽する一方、トラック進入口の両内側部に配設した遮蔽材の横方向の切れ目により遮蔽材がダンプトラックの側面の形状に沿うようになり、ダンプトラックの側部とトラック進入口との隙間を遮蔽することができ、小さな内容積の建屋で粉塵の飛散を防止することができる。そして、カバー体の内容積は小さいので集塵装置を設置する場合でもその容量を小さいもので済む。
【００１１】
また、請求項２記載の受材装置によれば、集塵装置によりカバー体内の粉塵を回収し、回収した粉塵を骨材搬送手段により搬送される骨材に還元することができて骨材の粒度構成を運搬時の状態に極力維持することができる。
【００１３】
【実施例】
以下、本発明の実施例を図面に基づいて説明する。
【００１４】
図１は前記サテライトプラントの受材装置の概要図であって、公知のサテライトプラントの装置と同一の装置は同番号を付している。
【００１５】
２は受材ホッパであって、メイン基地のアスファルトプラントよりダンプトラック１により配送される加熱骨材を随時受け入れるものである。
【００１６】
受材ホッパ２の上部開口にはダンプトラック１の荷台の後部端を受け入れるカバー体１０を配設しており、その一側面は前記ダンプトラック１の荷台の後部端を受け入れるトラック進入口１１を開口している。
【００１７】
トラック進入口１１には、例えばゴムや軟質の合成樹脂等の可撓性材料よりなり、縦方向に切れ目を設けた暖簾状遮蔽材１２をカバー体１０の天井部１３より垂設すると共に、トラック進入口１１の両内側部にも暖簾状遮蔽材１２と同様のゴム等の可撓性材料よりなり、横方向に切れ目を設けた遮蔽材１４を配設してトラック進入口１１を遮蔽するようにしている。
【００１８】
また、カバー体１０の天井部１３は、ダンプトラック１の荷台を上昇させた時の傾斜角度に合わせて傾斜させ、カバー体１０の内容積が極力少なくなるようにしている。
【００１９】
受材ホッパ２の下位には加熱骨材を受材ホッパ２より引き出す引出しコンベヤ３を配設してあり、該引出しコンベヤの先端部は骨材配送手段である垂直搬送装置４の骨材投入部に連結してある。
【００２０】
垂直搬送装置４の内部には上下方向に巡回する骨材運搬用のバケット５を配設し、投入した加熱骨材をサテライトプラント上部のホットビン７に持ち上げるようにしている。
【００２１】
１５は飛散する粉塵を捕集する集塵装置であって、集塵装置１５に連結した吸引用配管１６の先端部は前記カバー体１０の天井部１３に連結し、カバー体１０内で発生する粉塵を集塵装置１５にて吸引するようにしている。そして集塵装置１５の下部は前記垂直搬送装置４の別の骨材投入部に連結し、集塵装置１５により回収した粉塵を集塵装置１５より垂直搬送装置４に払い出して搬送される骨材に還元するようにしている。
【００２２】
しかして、サテライトプラントにおいて加熱骨材を受け入れる場合、メイン基地のアスファルトプラントより加熱骨材を積載したダンプトラック１がサテライトプラントの受材ホッパ２に到着すると、ダンプトラック１の荷台の後部端を受材ホッパ２の上部開口に配設したカバー体１０のトラック進入口１１に進入させる。
【００２３】
トラック進入口１１には縦方向に切れ目を有する暖簾状遮蔽材１２や横方向に切れ目を有する遮蔽材１４が配設してあり、ダンプトラック１の荷台がトラック進入口１１に配設した暖簾状遮蔽材１２や遮蔽材１４を押し広げる時、暖簾状遮蔽材１２や遮蔽材１４にはそれぞれ縦方向及び横方向の切れ目があり、暖簾状遮蔽材１２は荷台の上方で、また遮蔽材１４は荷台の側方で、荷台の輪郭に沿って変形し、荷台とトラック進入口１１との隙間を遮蔽しながら荷台の後部端を受材ホッパ２上位に受け入れる。
【００２４】
荷台を上昇させて傾斜させると荷台の加熱骨材は荷台の後部端より受材ホッパ２内に落下する。この時、加熱骨材に含まれるダスト分が粉塵となって舞い上がり、カバー体１０内に充満するようになるが、暖簾状遮蔽材１２及び遮蔽材１４により荷台とカバー体１０のトラック進入口１１との隙間を遮蔽しているため、粉塵の外部への飛散は防止される。
【００２５】
そして、集塵装置１５を駆動してやると吸引用配管１６を介してカバー体１０内の粉塵は集塵装置１５に吸引されて回収される。この時、カバー体１０の内容積が小さいと集塵装置１５により吸引する量が少なくて済み、集塵装置１５の容量や排風機の容量はコンパクトなもので良く、装置のコストを低減することができる。
【００２６】
回収した粉塵は集塵装置１５より払い出し、垂直搬送装置４の骨材投入部からプラント本体の骨材貯蔵ビンに搬送される骨材にダスト分として還元する。
【００２７】
なお、受材ホッパ２の容積は、通常、ダンプトラックの１車両分の材料を受け入れる大きさになっているが、この受材ホッパ２の容積を、例えば、１／３程度と略半分以下にし、ダンプトラックよりの材料の払い出しを徐々にしていくようにすると粉塵の飛散量も少なくなり、また装置全体の大きさもコンパクト化できてコストも低廉となって好ましいものとなる。また、本発明は何らアスファルト合材製造工場の受材装置に限定するものではなく、コンクリート製造工場等の粉塵の飛散しやすい材料を受材ホッパにて受け取る設備にも適用できることは言うまでもない。
【００２８】
【発明の効果】
以上のように本発明の請求項１記載の受材装置にあっては、受材ホッパ２の上部にカバー体１０を配設し、カバー体１０のトラック進入口１１に縦方向に切れ目を有する可撓性材料よりなる暖簾状遮蔽材１２を垂設する一方、トラック進入口１１の両内側部にも横方向に切れ目を有する可撓性材料よりなる遮蔽材１４を配設したので、ダンプトラック１の荷台の後部端をトラック進入口１１に進入させて加熱骨材を受材ホッパ２に投入する場合、暖簾状遮蔽材１２が荷台とトラック進入口１１の隙間を遮蔽すると共に、荷台の側面とトラック進入口１１との隙間も遮蔽することができて密閉度が増し、加熱骨材の投入時に舞い上がる粉塵の外部への飛散を防止することができる。そして、集塵装置により粉塵を吸引する場合でも、カバー体１０の内容積が小さいため、容量の小さい排風機や集塵装置で済み、コストの低減を図ることができる。
【００２９】
また、本発明の請求項２記載の受材装置にあっては、カバー体１０に粉塵を回収する集塵装置１５を備え、集塵装置１５により回収した粉塵は骨材配送手段である垂直搬送装置４により搬送される骨材に還元するようにしたので、骨材の粒度構成を極力運搬時の状態に維持することができて粒度の安定化を図ることができる。
【図面の簡単な説明】
【図１】本発明に係る受材装置の一実施例を示す概要図である。
【図２】図１の側面図である。
【図３】本発明に係る受材装置の一実施例を示す一部を省略した斜視図である。
【図４】従来の受材装置を採用したサテライトプラントを示す概要図である。
【符号の説明】
１…ダンプトラック２…受材ホッパ
３…垂直搬送装置（骨材配送手段）１０…カバー体
１１…トラック進入口１２…暖簾状遮蔽材
１４…遮蔽材１５…集塵装置[0001]
[Industrial application fields]
The present invention relates to a receiving device that receives aggregate transported by a dump truck, and more particularly to a receiving device that can minimize the prevention of dust scattering that occurs when receiving an aggregate into a receiving hopper.
[0002]
[Prior art]
For example, a satellite system is considered as a manufacturing method of asphalt composite material which is a road pavement material. In this satellite system, a well-known asphalt plant is installed as a main base in a place where the plant installation regulations are far away from the urban area. In urban areas where installation regulations are severe, noise such as shown in FIG. Installed a satellite plant, an asphalt compound production device with reduced generation, and transported the heated aggregate produced by the main base asphalt plant to the various satellite plants by the dump truck 1 and melted into the heated aggregate at the satellite plant Materials such as asphalt and stone powder are added and mixed to produce asphalt mixture and shipped to each construction site.
[0003]
In this satellite plant, the heated aggregate transported by the dump truck 1 is once received by the receiving material hopper 2, pulled out by the pulling conveyor 3 from the receiving material hopper 2, and transferred by the bucket 5 of the vertical conveying device 4. Temporarily store in the hot bin 7 disposed at the upper part of the main body 6, pay out to the measuring tank 8 disposed below the hot bin 7 based on the shipping request, measure a predetermined amount, and put it into the mixer 9 together with other materials. Mix and ship asphalt mix.
[0004]
At this time, since the heated aggregate transported to the satellite plant is heated and dried, the dust is easily separated, and when the heated aggregate is fed from the dump truck 1 to the receiving hopper 2, the dust is converted into dust. It is thought that this dust rises and this dust is scattered around. Therefore, in order to prevent the dust from scattering, it is conceivable to install a building for storing the dump truck 1 as indicated by a virtual line in FIG.
[0005]
[Problems to be solved by the invention]
However, when the dump truck is stored in the building as described above, the building needs to have a large internal volume, and a large exhaust fan or dust collector is required to suck the dust filling the building. Is necessary and costly.
[0006]
An object of this invention is to provide the receiving device which can prevent scattering of the dust at the time of aggregate unloading at low cost in view of said point.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, the receiving device according to claim 1 receives the aggregate conveyed by the dump truck by the receiving hopper and delivers it to a predetermined storage facility by the aggregate delivery means. In the receiving device, a cover body that covers the upper opening of the receiving material hopper is disposed on the receiving material hopper, and the rear end of the loading platform of the dump truck is inserted into the covering body to input the aggregate. The track entrance is provided with a warming shield made of a flexible material and having a cut in the vertical direction, while the track entrance is flexible on both inner sides of the track entrance. It is characterized in that a shielding material made of a conductive material and having a cut in the lateral direction is provided.
[0008]
The receiving device according to claim 2 , wherein the aggregate transported by the dump truck is received by a receiving hopper and delivered to a predetermined storage facility by an aggregate delivery means. A cover body that covers the upper opening of the receiving material hopper is disposed at the upper part of the hopper, and a truck entrance for feeding the aggregate by allowing the rear end of the loading platform of the dump truck to enter is disposed in the cover body. The track entrance is provided with a dust collecting device for collecting dust in the cover body, while a warming shield material made of a flexible material and having a cut in the vertical direction is suspended at the entrance to the track. The dust collected by the above-mentioned method is characterized in that the dust is returned to the aggregate conveyed by the aggregate delivery means .
[0010]
[Action]
According to the receiving device of claim 1 of the present invention, when the aggregate is received from the dump truck into the receiving hopper, the rear end of the dump truck enters the track entrance of the cover body disposed on the upper portion of the receiving hopper. Since the aggregate is unloaded, the rear end of the dump truck when the aggregate is unloaded is covered by the cover body, and the dump truck is covered by the warming shield material suspended from the track entrance of the cover body. While shielding the loading platform and the truck entrance , the shielding material follows the shape of the side surface of the dump truck due to the lateral cuts of the shielding material arranged on both inner sides of the truck entrance, The gap with the truck entrance can be shielded , and dust scattering can be prevented in a building with a small internal volume. And since the internal volume of a cover body is small, even when installing a dust collector, the capacity | capacitance may be small.
[0011]
Further, according to the receiving device of claim 2, the dust in the cover body can be collected by the dust collecting device, and the collected dust can be reduced to the aggregate conveyed by the aggregate conveying means. The particle size configuration can be maintained as much as possible during transportation.
[0013]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0014]
FIG. 1 is a schematic view of a receiving device for a satellite plant, and the same devices as those of a known satellite plant are given the same numbers.
[0015]
Reference numeral 2 denotes a receiving material hopper which receives the heated aggregate delivered from the main base asphalt plant by the dump truck 1 as needed.
[0016]
A cover body 10 for receiving the rear end of the loading platform of the dump truck 1 is disposed in the upper opening of the receiving material hopper 2, and one side of the cover body 10 opens a truck entrance 11 for receiving the rear end of the loading platform of the dump truck 1. doing.
[0017]
The track entrance 11 is made of a flexible material such as rubber or soft synthetic resin, and a warm shield 12 having a cut in the vertical direction is suspended from the ceiling 13 of the cover body 10, and the track The inner side of the entrance 11 is made of a flexible material such as rubber similar to the warm shield 12 and is provided with a shielding member 14 having a cut in the lateral direction so as to shield the track entrance 11. I have to.
[0018]
Moreover, the ceiling part 13 of the cover body 10 is inclined according to the inclination angle when the loading platform of the dump truck 1 is raised so that the internal volume of the cover body 10 is reduced as much as possible.
[0019]
A drawer conveyor 3 is provided below the receiving hopper 2 to draw the heated aggregate from the receiving hopper 2, and the leading end of the drawer conveyor is an aggregate input section of the vertical conveying device 4 serving as an aggregate delivery means. It is connected to.
[0020]
Inside the vertical transfer device 4, a bucket 5 for transporting aggregate that circulates in the vertical direction is arranged, and the charged heated aggregate is lifted to a hot bottle 7 at the top of the satellite plant.
[0021]
Reference numeral 15 denotes a dust collecting device for collecting scattered dust. The tip of the suction pipe 16 connected to the dust collecting device 15 is connected to the ceiling portion 13 of the cover body 10 and is generated in the cover body 10. Dust is sucked by the dust collector 15. The lower part of the dust collecting device 15 is connected to another aggregate input portion of the vertical conveying device 4, and the dust collected by the dust collecting device 15 is discharged from the dust collecting device 15 to the vertical conveying device 4 to be conveyed. I'm trying to reduce it.
[0022]
Therefore, when receiving the heated aggregate at the satellite plant, when the dump truck 1 loaded with the heated aggregate from the asphalt plant at the main base arrives at the receiving hopper 2 of the satellite plant, the rear end of the loading platform of the dump truck 1 is received. It is made to enter into the track entrance 11 of the cover body 10 disposed in the upper opening of the material hopper 2.
[0023]
The truck entrance 11 is provided with a warming shield 12 having a cut in the vertical direction and a shielding material 14 having a cut in the lateral direction. When the shielding material 12 and the shielding material 14 are spread out, the warmth-like shielding material 12 and the shielding material 14 have vertical and lateral cuts, respectively. The warming-like shielding material 12 is above the loading platform, and the shielding material 14 is At the side of the loading platform, it is deformed along the outline of the loading platform, and the rear end of the loading platform is received above the receiving material hopper 2 while shielding the gap between the loading platform and the truck entrance 11.
[0024]
When the loading platform is raised and inclined, the heated aggregate of the loading platform falls into the receiving material hopper 2 from the rear end of the loading platform. At this time, the dust contained in the heated aggregate rises as dust and fills the cover body 10, but the warm bed-like shielding material 12 and the shielding material 14 cause the loading platform and the track entrance 11 of the cover body 10. The dust is prevented from scattering to the outside.
[0025]
When the dust collector 15 is driven, the dust in the cover body 10 is sucked and collected by the dust collector 15 via the suction pipe 16. At this time, if the internal volume of the cover body 10 is small, the amount sucked by the dust collector 15 can be reduced, and the capacity of the dust collector 15 and the capacity of the exhaust fan can be compact, reducing the cost of the apparatus. Can do.
[0026]
The collected dust is discharged from the dust collecting device 15 and is reduced as dust to the aggregate conveyed from the aggregate input portion of the vertical conveying device 4 to the aggregate storage bin of the plant body.
[0027]
The volume of the receiving material hopper 2 is usually large enough to receive the material for one vehicle of the dump truck, but the volume of the receiving material hopper 2 is, for example, about 1/3, approximately half or less. When the material is gradually discharged from the dump truck, the amount of dust scattering is reduced, the overall size of the apparatus can be reduced, and the cost is reduced, which is preferable. In addition, the present invention is not limited to the receiving apparatus of the asphalt composite material manufacturing factory, and it goes without saying that the present invention can also be applied to facilities for receiving dust easily scattered materials such as a concrete manufacturing factory with a receiving hopper.
[0028]
【The invention's effect】
As described above, in the receiving device according to claim 1 of the present invention, the cover body 10 is disposed on the upper portion of the receiving material hopper 2, and the track entrance 11 of the cover body 10 has a cut in the vertical direction. Since the warming shield 12 made of a flexible material is suspended, the shield 14 made of a flexible material having a cut in the lateral direction is also provided on both inner sides of the track entrance 11, so that the dump truck When the rear end of one loading platform enters the truck entrance 11 and the heated aggregate is put into the receiving hopper 2, the warming shield 12 shields the gap between the loading platform and the truck entrance 11, and the side surface of the loading platform. It is also possible to shield the gap between the track entrance 11 and the track entrance 11, thereby increasing the sealing degree and preventing the dust that rises when the heated aggregate is charged from being scattered to the outside. Even when the dust is sucked by the dust collector, the cover body 10 has a small internal volume. Therefore, a small capacity exhauster or dust collector is sufficient, and the cost can be reduced.
[0029]
Further, in the receiving device according to claim 2 of the present invention, the cover body 10 is provided with a dust collecting device 15 for collecting dust, and the dust collected by the dust collecting device 15 is a vertical transport which is an aggregate delivery means. Since it reduces to the aggregate conveyed with the apparatus 4, the particle size structure of an aggregate can be maintained to the state at the time of conveyance as much as possible, and stabilization of a particle size can be aimed at.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of a receiving device according to the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is a perspective view with a part omitted showing an embodiment of a receiving device according to the present invention.
FIG. 4 is a schematic diagram showing a satellite plant that employs a conventional receiving device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Dump truck 2 ... Receipt hopper 3 ... Vertical conveyance apparatus (aggregate delivery means) 10 ... Cover body 11 ... Truck entrance 12 ... Warm-thickness shielding material 14 ... Shielding material 15 ... Dust collector

Claims

In the receiving device in which the aggregate conveyed by the dump truck is received by the receiving hopper and delivered to the predetermined storage facility by the aggregate delivery means, the upper opening of the receiving hopper is covered on the upper portion of the receiving hopper A cover body is provided, and a truck entrance for introducing the aggregate by allowing the rear end of the loading platform of the dump truck to enter is provided in the cover body, and the track entrance is made of a flexible material. Bone characterized in that a warm shield-like shielding material having a cut in the longitudinal direction is suspended, and a shielding material made of a flexible material and having a cut in the transverse direction is disposed on both inner sides of the track entrance. Material receiving device.

In the receiving device in which the aggregate conveyed by the dump truck is received by the receiving hopper and delivered to the predetermined storage facility by the aggregate delivery means, the upper opening of the receiving hopper is covered on the upper portion of the receiving hopper A cover body is provided, and a truck entrance for introducing the aggregate by allowing the rear end of the loading platform of the dump truck to enter is provided in the cover body, and the track entrance is made of a flexible material. In addition, a warming shield having a vertical cut is suspended, and the cover body is provided with a dust collecting device for collecting dust in the cover body, and the dust collected by the dust collecting device is conveyed by the aggregate delivery means An aggregate receiving device, wherein the aggregate receiving device is configured to be reduced to aggregate.