JP2003211092A - Method for recovering regenerated aggregate and regenerated road bed material by using air sorting - Google Patents
Method for recovering regenerated aggregate and regenerated road bed material by using air sortingInfo
- Publication number
- JP2003211092A JP2003211092A JP2002010653A JP2002010653A JP2003211092A JP 2003211092 A JP2003211092 A JP 2003211092A JP 2002010653 A JP2002010653 A JP 2002010653A JP 2002010653 A JP2002010653 A JP 2002010653A JP 2003211092 A JP2003211092 A JP 2003211092A
- Authority
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- Japan
- Prior art keywords
- recycled
- sieving
- supplied
- components
- aggregate
- 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
Landscapes
- Road Paving Machines (AREA)
- Processing Of Solid Wastes (AREA)
- Combined Means For Separation Of Solids (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は風力選別を利用した
再生骨材及び再生路盤材の回収方法に関し、より詳しく
はコンクリート廃材やアスファルト廃材等の廃棄物に含
まれる不純物を風力によって選別除去して良質な再生骨
材及び再生路盤材を回収することが可能な再生骨材及び
再生路盤材の回収方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recovering recycled aggregate and recycled roadbed material using wind power selection, and more specifically, it removes impurities contained in waste such as concrete waste materials and asphalt waste materials by wind power. The present invention relates to a recycled aggregate and a recycled roadbed material recovery method capable of collecting good quality recycled aggregate and recycled roadbed material.
【０００２】[0002]
【従来の技術】従来、建築物等の解体に伴って排出され
るコンクリート廃棄物や舗装道路の改修等に伴って排出
されるアスファルト廃棄物を原料として再生骨材及び再
生路盤材を回収する方法としては、原料を破砕装置にて
破砕した後、ふるい分け装置に供給してふるい分けをし
て回収する方法が一般的である。しかしながら、原料と
して供給される廃棄物中には、木片、木の根、布切れ、
ビニール、壁材、紙類等の種種雑多の不純物が多く混入
しており、このような不純物の量（容量）は、アスファ
ルト廃材の場合には約０.１〜０.３％、コンクリート廃
材の場合では０.５〜１％にも達している。そこで、従
来はこれらの不純物を作業者が手作業により選別除去し
ていたが、この作業は非常に面倒であって作業性が悪
く、しかも通常は複数人の作業者を要することから、再
生骨材及び再生路盤材の製造コストの増大を招いてい
た。また、人手による作業では細かい不純物が完全に除
去しきれないことも多いため、不純物の混入により再生
骨材及び再生路盤材の品質が低下してしまうこともあっ
た。2. Description of the Related Art Conventionally, a method of recovering recycled aggregate and recycled base course material from concrete waste discharged as a building is demolished or asphalt waste discharged as a result of repairing a paved road As a general method, after crushing the raw material with a crushing device, the raw material is supplied to a sieving device and sieved for recovery. However, in the waste supplied as raw material, wood chips, tree roots, cloth scraps,
A large amount of various impurities such as vinyl, wall materials, and paper are mixed in. The amount (volume) of such impurities is about 0.1 to 0.3% in the case of asphalt waste materials, and that of concrete waste materials. In some cases, it reaches 0.5 to 1%. Therefore, conventionally, an operator manually selects and removes these impurities, but this work is extremely troublesome and poor in workability, and usually requires a plurality of workers. This has led to an increase in the manufacturing costs of wood and recycled roadbed materials. Further, in many cases, fine impurities cannot be completely removed by manual work, so that the quality of the recycled aggregate and the recycled roadbed material may be deteriorated due to the inclusion of impurities.
【０００３】[0003]
【発明が解決しようとする課題】本発明はかかる実情に
鑑みてなされたものであって、コンクリート廃材やアス
ファルト廃材等の廃棄物に含まれる不純物を、効率良く
且つ確実に除去して良質な再生骨材及び再生路盤材を容
易に回収することが可能な再生骨材及び再生路盤材の回
収方法を提供せんとするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and efficiently and surely removes impurities contained in wastes such as concrete waste materials and asphalt waste materials and regenerates them with good quality. It is an object of the present invention to provide a method for recovering recycled aggregate and recycled roadbed material that enables easy recovery of aggregate and recycled roadbed material.
【０００４】[0004]
【課題を解決するための手段】請求項１に係る発明は、
コンクリート廃材やアスファルト廃材等の廃棄物を破砕
装置に供給して所定の大きさに破砕し、該破砕された廃
棄物をふるい装置に供給して所定粒度毎にふるい分けし
て再生骨材及び再生路盤材を回収する方法であって、前
記ふるい装置が、傾斜して設けられた上段ふるい及び下
段ふるいと、該下段ふるいの下方に設けられた排出ホッ
パーとを備え、該排出ホッパーは下段ふるいの上流側に
設けられた第１ホッパーと下流側に設けられた第２ホッ
パーとからなり、前記下段ふるい下方位置には傾斜下流
側に向けて風を吹き付ける送風機が配置された振動傾斜
ふるい装置であって、前記送風機によって、該振動傾斜
ふるい装置の下段ふるいを通過できずにふるい傾斜下端
部から落下する落下物のうち、軽量成分を吹き飛ばして
不純物として回収し、吹き飛ばされずにそのまま落下し
た重量成分を再生骨材及び再生路盤材として回収するこ
とを特徴とする風力選別を利用した再生骨材及び再生路
盤材の回収方法に関する。請求項２に係る発明は、前記
廃棄物が破砕装置に供給される前にグリズリーフィーダ
ーにより大径成分と小径成分とに選別し、該選別された
大径成分を前記破砕装置に供給するとともに、小径成分
を第２ふるい装置に供給してふるい分けし、該ふるい分
けされた所定粒径以下の成分を、前記振動傾斜ふるい装
置のふるいを通過した成分と合わせて再生骨材及び再生
路盤材として回収することを特徴とする請求項1記載の
風力選別を利用した再生骨材及び再生路盤材の回収方法
に関する。The invention according to claim 1 is
Waste such as concrete waste and asphalt waste is supplied to a crushing device and crushed to a predetermined size, and the crushed waste is supplied to a sieving device and sieved to a predetermined particle size to recycle aggregate and recycled roadbed. A method for recovering material, wherein the sieving device comprises an upper screen and a lower screen which are inclined, and a discharge hopper provided below the lower screen, the discharge hopper being upstream of the lower screen. And a first hopper provided on the downstream side, and a second hopper provided on the downstream side, and a blower for blowing air toward the inclined downstream side is arranged at a lower position of the lower stage sieve. , The blower blows away light components from the falling objects falling from the lower end of the sieving slope that cannot pass through the lower sieve of the vibrating sieving device, and collects them as impurities Relates to a method for recovering recycled aggregate and reproducing roadbed using wind sorting and recovering the blown directly dropped weight component without a recycled aggregate and reproducing roadbed. In the invention according to claim 2, before the waste is supplied to the crushing device, it is sorted into a large diameter component and a small diameter component by a grizzly feeder, and the selected large diameter component is supplied to the crushing device, The small-diameter component is supplied to the second sieving device for sieving, and the sieved component having a predetermined particle size or less is collected as regenerated aggregate and regenerated roadbed material together with the component that has passed through the sieving of the oscillating tilt sieving device. A method for recovering recycled aggregate and recycled roadbed material using the wind power selection according to claim 1.
【０００５】請求項３に係る発明は、前記第２ふるい装
置にてふるい分けされた所定粒径以下の成分を搬送する
第１搬送装置の終端部を、前記第２ホッパーに排出され
た成分を搬送する第２搬送装置の始端部の上方に配置す
るとともに、前記第１搬送装置から第２搬送装置に供給
される成分に向けて風を吹き付ける第２送風機を備えて
なることを特徴とする請求項２記載の風力選別を利用し
た再生骨材及び再生路盤材の回収方法に関する。請求項
４に係る発明は、前記第１搬送装置が、互いに直角方向
に配設された少なくとも２つの搬送装置からなり、該２
つの搬送装置のうち上流側の搬送装置の終端部を下流側
の搬送装置の始端部の上方に配置するとともに、該上流
側搬送装置から下流側搬送装置に供給される成分に向け
て風を吹き付ける第３送風機を備えてなることを特徴と
する請求項３記載の風力選別を利用した再生骨材及び再
生路盤材の回収方法に関する。The invention according to claim 3 conveys the component discharged to the second hopper from the terminal end portion of the first conveying device which conveys the component having a predetermined particle size or less, which is sieved by the second sieving device. A second blower, which is disposed above the starting end of the second transport device and blows air toward the components supplied from the first transport device to the second transport device. The present invention relates to a method of collecting recycled aggregate and recycled roadbed material using the wind power selection described in 2. According to a fourth aspect of the present invention, the first transfer device comprises at least two transfer devices arranged at right angles to each other.
Of the two transport devices, the end portion of the upstream transport device is arranged above the start end of the downstream transport device, and air is blown toward the components supplied from the upstream transport device to the downstream transport device. A method for recovering recycled aggregate and recycled roadbed material using wind power sorting according to claim 3, comprising a third blower.
【０００６】[0006]
【発明の実施の形態】以下、本発明の係る風力選別を利
用した再生骨材及び再生路盤材の回収方法の好適な実施
形態について、図面を参照しつつ説明する。図１は、本
発明に係る再生骨材及び再生路盤材の回収方法の工程の
一例を示すフローシートである。本発明に係る再生骨材
及び再生路盤材の回収方法では、原料としてコンクリー
ト廃材又はアスファルト廃材、或いはこれらの混合物が
原料とされる。原料は、先ずホッパー（１）へと収容さ
れ、フィーダー（レシプロフィーダー）（２）により一
定量ずつグリズリーフィーダー（３）へと供給される。
グリズリーフィーダー（３）は供給されてきた原料を例
えば５０ｍｍを超える成分と５０ｍｍ以下の成分とに選
別して、５０ｍｍを超える成分については１次破砕機
（４）へと供給する。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a method for recovering recycled aggregate and recycled roadbed material using wind power sorting according to the present invention will be described below with reference to the drawings. FIG. 1 is a flow sheet showing an example of steps of a method for collecting recycled aggregate and recycled roadbed material according to the present invention. In the method for recovering recycled aggregate and recycled roadbed material according to the present invention, concrete waste material, asphalt waste material, or a mixture thereof is used as a raw material. The raw material is first accommodated in the hopper (1) and is supplied to the grizzly feeder (3) by a fixed amount by a feeder (reciprocating feeder) (2).
The grizzly feeder (3) sorts the supplied raw material into, for example, a component exceeding 50 mm and a component less than 50 mm, and supplies the component exceeding 50 mm to the primary crusher (4).
【０００７】１次破砕機（４）としてはジョークラッシ
ャー等の圧縮破砕機が使用され、１次破砕機（４）にお
いて破砕された原料は搬送装置（５）を介してふるい装
置（６）へと供給される。本発明において、搬送装置と
してはベルトコンベアが好適に使用され、これは以下の
搬送装置についても同様である。搬送装置（５）の上部
には磁力選別装置（７）が設けられており、鉄屑等の金
属異物は搬送装置（５）により搬送中に除去される。A compression crusher such as a jaw crusher is used as the primary crusher (4), and the raw material crushed in the primary crusher (4) is transferred to the sieving device (6) via the conveying device (5). Supplied with. In the present invention, a belt conveyor is preferably used as the carrying device, and the same applies to the following carrying devices. A magnetic force sorting device (7) is provided above the transfer device (5), and metallic foreign substances such as iron scraps are removed by the transfer device (5) during transfer.
【０００８】図２は、ふるい装置（６）の構成を拡大し
て示す概略図である。ふるい装置（６）は、同方向に傾
斜して設けられた上段ふるい（６１）及び下段ふるい
（６２）と、これらのふるいを振動させる振動装置（図
示略）と、下段ふるい（６２）の下方に設けられた排出
ホッパーと、前記ふるい（６１）、（６２）と同方向に
傾斜されて下段ふるい（６２）を通過した成分を排出ホ
ッパーへと導く開口部を有する傾斜板（６３）とを備え
ている。排出ホッパーは下段ふるい（６２）の上流側に
設けられた第１ホッパー（６４）と下流側に設けられた
第２ホッパー（６５）とからなっており、第２ホッパー
（６５）は下段ふるい（６２）のふるい目を通過できず
に傾斜下端部から自然落下する重量成分を収容できるよ
うに配置されている。そして、前記ふるいの傾斜下流端
には、下段ふるい（６２）と傾斜版（６３）との間にお
いて、ふるいの傾斜下流側に向けて風を吹き付ける送風
機（６６）が配置されている。FIG. 2 is an enlarged schematic view showing the structure of the sieving device (6). The sieving device (6) includes an upper sieving (61) and a lower sieving (62) which are inclined in the same direction, a vibrating device (not shown) for vibrating these sieving, and a lower sieving (62). The discharge hopper provided in the above and a slant plate (63) having an opening that is inclined in the same direction as the sieves (61) and (62) and guides the components that have passed through the lower stage sieve (62) to the discharge hopper. I have it. The discharge hopper is composed of a first hopper (64) provided on the upstream side of the lower sieve (62) and a second hopper (65) provided on the downstream side, and the second hopper (65) is the lower sieve ( It is arranged so as to be able to accommodate the weight component that cannot pass through the sieve of 62) and naturally falls from the lower end of the slope. A blower (66) for blowing air toward the downstream side of the slant of the sieve is disposed between the lower stage sieve (62) and the slant plate (63) at the downstream end of the slant of the sieve.
【０００９】この送風機（６６）は、下段ふるい（６
２）のふるい目を通過せず傾斜端から落下してきた成分
のうち、木片、木の根、布切れ、ビニール、壁材、紙類
等の不純物からなる軽量成分を傾斜下流方向へと吹き飛
ばすことができるが、骨材からなる重量成分は吹き飛ば
すことのできない程度の風量、具体的には５０〜６０ｍ
３/ｍｉｎ程度の風量で運転される。送風機（６６）
は、下段ふるい（６２）を通過せずに落下するすべての
成分に対して満遍なく風を吹き付けることができるよう
に、ふるいの幅方向に複数台、好ましくは４台程度並べ
て配置することが好ましい。そして、送風機（６６）の
風向きの下流側には、送風機（６６）によって吹き飛ば
された軽量成分と吹き飛ばされずに自然落下する重量成
分とを分ける分岐板（６７）が設けられており、重量成
分は分岐板（６７）を超えずに落下して第２ホッパー
（６５）へと入り、軽量成分は分岐板（６７）を超えて
不純物回収ホッパー（６８）へと入るようになってい
る。This blower (66) has a lower sieve (6
Component that has fallen from the slanted end without passing through the sieve of 2)
Among them, wood chips, roots, pieces of cloth, vinyl, wall materials, papers
Blows off light components such as impurities toward the downstream of the slope.
Can be blown away, but the heavy components made up of aggregate are blown away
The amount of air that cannot be passed, specifically 50-60m
ThreeIt is operated with an air volume of about / min. Blower (66)
Is all that falls without passing through the lower sieve (62).
So that the wind can be blown evenly over the ingredients
In addition, multiple units, preferably about 4 units, are arranged in the width direction of the sieve.
It is preferable to arrange them. And of the blower (66)
On the downstream side in the wind direction, blow off with a blower (66)
Weight components that naturally fall without being blown away
There is a branch plate (67) to separate the weight and
Minutes fall below the branch plate (67) and fall into the second hopper
Entering (65), the light weight component exceeds the branch plate (67)
It enters the impurity recovery hopper (68).
It
【００１０】上段ふるい（６１）及び下段ふるい（６
２）のふるい目の大きさは特に限定されていないが、例
えば、再生路盤材として再生粒度調整砕石(ＲＭ)を得る
場合には、上段ふるい（６１）のふるい目の大きさを３
５ｍｍ、下段ふるい（６２）のふるい目の大きさを２０
ｍｍとし、再生クラッシャーラン（ＲＣ）を得る場合に
は、上段ふるい（６１）のふるい目の大きさを４５ｍ
ｍ、下段ふるい（６２）のふるい目の大きさを２０ｍｍ
とすればよい。Upper sieve (61) and lower sieve (6
The size of the sieving of 2) is not particularly limited, but for example, in the case of obtaining recycled particle size adjusted crushed stone (RM) as recycled roadbed material, the size of the sieving of the upper sieve (61) is 3
5 mm, the size of the sieve mesh of the lower sieve (62) is 20
mm, to obtain a recycled crusher run (RC), the size of the upper sieve (61) sieve should be 45 m.
m, the size of the sieve mesh of the lower sieve (62) is 20 mm
And it is sufficient.
【００１１】ふるい目の大きさが３５ｍｍと２０ｍｍの
場合を例として説明すると、ふるい装置（６）に供給さ
れた破砕後の原料は、先ず上段ふるい（６１）により３
５ｍｍを超える成分と３５ｍｍ以下の成分とに分別さ
れ、３５ｍｍを超える成分は上段ふるい（６１）の傾斜
下端から排出されて、搬送装置（８）により搬送され
る。そして、３５ｍｍ以下の成分はふるい目を通過して
下段ふるい（６２）上へと落下し、２０ｍｍを超える成
分と２０ｍｍ以下の成分とに分別され、２０ｍｍ以下の
成分は排出ホッパー（６４）（６５）に排出されて、搬
送装置（１６）により搬送される。尚、図においては、
搬送装置（１６）として１台のコンベアのみが示されて
いるが、２台以上のコンベアを使用してもよい。The case where the sizes of the sieves are 35 mm and 20 mm will be described as an example. The crushed raw material supplied to the sieving device (6) is first crushed by the upper sieve (61) to 3
The components having a diameter of more than 5 mm and the components having a diameter of 35 mm or less are separated, and the components having a diameter of more than 35 mm are discharged from the inclined lower end of the upper sieve (61) and transported by the transport device (8). Then, components of 35 mm or less pass through the sieve and drop onto the lower sieve (62), and are separated into components of more than 20 mm and components of 20 mm or less, and components of 20 mm or less are discharged into the discharge hopper (64) (65 ) And is transported by the transport device (16). In the figure,
Although only one conveyor is shown as the transport device (16), more than one conveyor may be used.
【００１２】２０ｍｍを超える成分は下段ふるい（６
２）のふるい目を通過せず傾斜下流側へ向けて落下する
が、このとき軽量成分は送風機（６６）によって下流側
へと吹き飛ばされ、分岐板（６７）を超えて不純物回収
ホッパー（６８）へと落下して第１不純物受け（６９）
に回収され、重量成分は吹き飛ばされずに分岐板（６
７）の手前で自然落下して第２ホッパー（６５）へと回
収される。For components exceeding 20 mm, lower sieve (6
Although it does not pass through the sieve of 2) and falls toward the downstream side of the slope, at this time, the light weight component is blown off to the downstream side by the blower (66), exceeds the branch plate (67), and the impurity recovery hopper (68). Drop into and receive the first impurity (69)
The heavy weight components are collected in the branch plate (6
It falls naturally before 7) and is collected in the second hopper (65).
【００１３】搬送装置（８）により搬送された３５ｍｍ
を超える成分は２次破砕機（９）へと供給されて更に細
かく破砕され、破砕された成分は搬送装置（１０）によ
って搬送装置（５）へと供給され、再度ふるい装置
（６）へと供給されて上記の如くふるい分けされる。そ
して、この２次破砕機（９）による破砕は、全ての成分
が３５ｍｍ以下となるまで繰り返される。２次破砕機
（９）としては、インペラ−ブレーカー（商品名：川崎
重工株式会社製）等の打撃衝突作用を利用して破砕を行
う破砕機が好適に使用される。35 mm transported by the transport device (8)
The components exceeding 10 are supplied to the secondary crusher (9) for further crushing, and the crushed components are supplied to the transfer device (5) by the transfer device (10) and again to the sieving device (6). It is supplied and screened as described above. Then, the crushing by the secondary crusher (9) is repeated until all the components become 35 mm or less. As the secondary crusher (9), a crusher that crushes by utilizing the impact collision action of an impeller breaker (trade name: manufactured by Kawasaki Heavy Industries, Ltd.) is preferably used.
【００１４】このようにして、第２ホッパー（６５）に
は、軽量物からなる不純物が除去されて大部分が骨材か
らなる３５ｍｍ以下の成分が回収される。そして、この
回収された３５ｍｍ以下の成分は、搬送装置（１６）に
より搬送されて、再生骨材及び上層路盤材として使用可
能な再生粒度調整砕石（ＲＭ）として回収される。尚、
本発明では、上記した第１ふるい装置（６）において、
ふるいの段数を３段以上とすることも可能であり、この
場合にも最下段のふるいを通過せずに傾斜下端から落下
する成分に対して風を吹き付けるように送風機を配置す
ればよい。Thus, the second hopper (65) removes impurities consisting of lightweight materials and recovers components of 35 mm or less consisting mostly of aggregate. Then, the recovered component of 35 mm or less is transported by the transportation device (16) and is recovered as recycled particle size adjusted crushed stone (RM) that can be used as the recycled aggregate and the upper layer roadbed material. still,
In the present invention, in the above-mentioned first sieving device (6),
It is also possible to set the number of stages of the sieve to three or more, and in this case as well, the blower may be arranged so as to blow the wind to the components falling from the lower end of the slope without passing through the sieve of the lowest stage.
【００１５】一方、グリズリーフィーダー（３）にて選
別された５０ｍｍ以下の成分は、搬送装置（１１）を介
して第２ふるい装置（１２）へと供給される。搬送装置
（１１）の上部には磁力選別装置（１３）が設けられて
おり、鉄屑等の金属異物は搬送装置（１１）により搬送
中に除去される。On the other hand, the components of 50 mm or less selected by the grizzly feeder (3) are supplied to the second sieving device (12) via the conveying device (11). A magnetic force sorting device (13) is provided above the transfer device (11), and metallic foreign substances such as iron scraps are removed by the transfer device (11) during transfer.
【００１６】第２ふるい装置（１２）は通常の振動水平
ふるい装置であって、供給された５０ｍｍ以下の成分を
３０ｍｍを超える成分と３０ｍｍ以下の成分とに分別
し、３０ｍｍを超える成分については、搬送装置（８）
により２次破砕機（９）へと供給して破砕する。２次破
砕機（９）で破砕された成分は搬送装置（１０）によっ
て搬送装置（５）へと供給されて前述の如くふるい分け
される。そして、この２次破砕機（９）による破砕は全
ての成分が３５ｍｍ以下となるまで繰り返される。The second sieving device (12) is a normal vibrating horizontal sieving device, which separates the supplied components of 50 mm or less into components of 30 mm or less and components of 30 mm or less. For components of 30 mm or more, Conveyor device (8)
To the secondary crusher (9) for crushing. The components crushed by the secondary crusher (9) are supplied to the transfer device (5) by the transfer device (10) and sieved as described above. Then, the crushing by the secondary crusher (9) is repeated until all the components become 35 mm or less.
【００１７】第２ふるい装置（１２）にて分別された３
０ｍｍ以下の成分は、搬送装置（１４）（１５）により
搬送されて、搬送装置（１６）と合流して前記排出ホッ
パー（６４）（６５）から回収された成分と共に上層路
盤材として使用可能な再生粒度調整砕石（ＲＭ）として
回収される。3 separated by the second sieving device (12)
The components of 0 mm or less are conveyed by the conveying devices (14) and (15), merge with the conveying devices (16), and can be used as the upper layer roadbed material together with the components collected from the discharge hoppers (64) and (65). It is recovered as recycled particle size crushed stone (RM).
【００１８】ここで、搬送装置（１４）と搬送装置（１
５）との合流部分、及び搬送装置（１５）と搬送装置
（１６）との合流部分には、それぞれ送風機（１７）、
（１８）が配置される。図３は搬送装置同士の位置関係
と送風機による風の方向を示す図であり、図示の如く、
搬送装置（１４）と搬送装置（１５）、及び搬送装置
（１５）と搬送装置（１６）とは互いに直角方向に配置
され、搬送装置（１４）の終端部が搬送装置（１５）の
始端部の上方に、搬送装置（１５）の終端部が搬送装置
（１６）の始端部の上方に、それぞれ位置するように配
置される。そして、送風機（図示略）による送風は上流
側の搬送装置の搬送方向と同方向となる方向（図中矢印
Ａに示す方向）に行われる。この送風機（１７）、（１
８）による送風は木片、木の根、布切れ、ビニール、壁
材、紙類等の不純物からなる軽量成分を吹き飛ばすこと
ができるが、骨材からなる重量成分は吹き飛ばすことの
できない程度の風量、具体的には５０〜６０ｍ３/ｍｉ
ｎ程度の風量とされる．Here, the transfer device (14) and the transfer device (1
The blower (17) and the blower (17) are respectively provided at the merging portion with the transport device (15) and the merging portion with the transport device (16).
(18) is arranged. FIG. 3 is a diagram showing the positional relationship between the transport devices and the direction of the wind by the blower.
The transfer device (14) and the transfer device (15), and the transfer device (15) and the transfer device (16) are arranged at right angles to each other, and the end portion of the transfer device (14) is the start end portion of the transfer device (15). Is arranged so that the terminal end of the transfer device (15) is located above the start end of the transfer device (16). Then, the air blower (not shown) blows air in the same direction as the conveying direction of the upstream conveying device (the direction indicated by arrow A in the figure). This blower (17), (1
The air blown by 8) can blow away light components such as wood chips, roots, pieces of cloth, vinyl, wall materials, papers, and other impurities, but the weight components such as aggregate cannot be blown off. 50 to 60 m 3 / mi
The air volume is about n.
【００１９】これによって、搬送装置（１４）から落下
して搬送装置（１５）へと供給される成分のうち、軽量
成分である不純物は吹き飛ばされて第２不純物受け（１
９）へと回収され、骨材は吹き飛ばされることなく搬送
装置（１４）の終端部から自然落下して、搬送装置（１
５）の始端部へと供給される。また同様に、搬送装置
（１５）から落下して搬送装置（１６）へと供給される
成分のうち、軽量成分である不純物は吹き飛ばされて第
２不純物受け（１９）へと回収され、骨材は吹き飛ばさ
れることなく搬送装置（１５）の終端部から自然落下し
て、搬送装置（１６）の始端部へと供給される。As a result, of the components that fall from the transport device (14) and are supplied to the transport device (15), the impurities, which are light weight components, are blown off and the second impurity receiver (1) is received.
9), the aggregate is naturally blown off from the end portion of the transport device (14) without being blown away, and the aggregate (1)
5) is supplied to the start end. Similarly, of the components that fall from the transport device (15) and are supplied to the transport device (16), the impurities that are lightweight components are blown off and collected in the second impurity receiver (19), and aggregates are collected. Is naturally blown off from the end portion of the transfer device (15) without being blown off and is supplied to the start end portion of the transfer device (16).
【００２０】このようにして、第２ふるい装置（１２）
にて分別された３０ｍｍ以下の成分には、軽量物からな
る不純物が除去されて大部分が骨材となって搬送装置
（１６）に供給されて搬送され、上層路盤材として使用
可能な再生粒度調整砕石（ＲＭ）として回収される。In this way, the second sieving device (12)
Recycled particle size that can be used as the upper layer roadbed material is obtained by removing impurities consisting of lightweight materials into the components of 30 mm or less separated by Recovered as adjusted crushed stone (RM).
【００２１】上記したように、本発明の方法によれば、
ふるい装置（６）及び第２ふるい装置（１２）により分
別された一定粒径以下の成分は、いずれも送風機によっ
て軽量成分からなる不純物が除去されることとなるの
で、最終的に不純物が殆ど含まれない良質な再生骨材及
び再生路盤材を回収することが可能となる。As mentioned above, according to the method of the present invention,
The components having a certain particle size or less, which have been separated by the sieving device (6) and the second sieving device (12), all have impurities, which are light components, removed by the blower, so that most of the impurities are finally contained. It is possible to collect high quality recycled aggregate and recycled roadbed material.
【００２２】[0022]
【実施例】以下、本発明に係る再生骨材及び再生路盤材
の回収方法の実施例及び比較例を示すことにより、本発
明の効果をより明確なものとする。但し、本発明は以下
の実施例に何ら限定されるものではない。
（実施例）コンクリート廃材とアスファルト廃材の混合
物からなる原料を図１に示す工程で処理して再生路盤材
を回収し、回収された再生路盤材に含まれる不純物（骨
材以外のもの）の量（質量）を測定したところ、全体の
０．０２〜０．２％程度であった。
（比較例）実施例と同じ原料を図１に示す工程において
送風機を設けずに処理して再生路盤材を回収し、回収さ
れた再生路盤材に含まる不純物（骨材以外のもの）の量
（質量）を測定したところ、全体の０．４〜０．６％程
度であった。EXAMPLES The effects of the present invention will be further clarified by showing Examples and Comparative Examples of the method for collecting recycled aggregate and recycled roadbed material according to the present invention. However, the present invention is not limited to the following examples. (Example) A raw material consisting of a mixture of concrete waste material and asphalt waste material is treated in the process shown in FIG. 1 to recover recycled roadbed material, and the amount of impurities (other than aggregate) contained in the recovered recycled roadbed material When the (mass) was measured, it was about 0.02 to 0.2% of the whole. (Comparative Example) The same raw material as in the example was processed in the process shown in FIG. 1 without a blower to recover the recycled roadbed material, and the amount of impurities (other than aggregates) contained in the recovered recycled roadbed material When the (mass) was measured, it was about 0.4 to 0.6% of the whole.
【００２３】実施例及び比較例の結果から、本発明に係
る方法によれば従来の方法に比べて、回収される再生骨
材及び再生路盤材に含まれる不純物の量を大幅に減少す
ることができることが分かった。From the results of Examples and Comparative Examples, the method according to the present invention can significantly reduce the amount of impurities contained in the recovered aggregate and recycled subbase material as compared with the conventional method. I knew I could do it.
【００２４】[0024]
【発明の効果】以上説明したように、請求項１に係る発
明によれば、振動ふるい装置における分別工程におい
て、送風機による風力によって再生骨材及び再生路盤材
中に含まれる木屑やビニール等（不純物）の軽量物を分
離除去することが可能となるため、良質の再生骨材及び
再生路盤材を効率良く低コストで回収することができ
る。請求項２に係る発明によれば、第２ふるい装置にて
ふるい分けされた所定粒径以下の成分と振動傾斜ふるい
装置の上段ふるいを通過した成分とを合わせて回収する
ので、回収される再生骨材及び再生路盤材の量を増やす
ことができる。請求項３に係る発明によれば、第２のふ
るい装置にてふるい分けされた所定粒径以下の成分に含
まれる木屑やビニール等の軽量物を送風機による風力に
よって分離除去することが可能となるため、大量の良質
の骨材及び路盤材を効率良く低コストで回収することが
できる。請求項４に係る発明によれば、第２のふるい装
置にてふるい分けされた所定粒径以下の成分に含まれる
木屑やビニール等の軽量物を更に確実に除去することが
可能となり、回収される再生骨材及び路盤材の品質を一
層高めることができる。As described above, according to the invention of claim 1, in the sorting step in the vibrating and sieving apparatus, wood chips, vinyl and the like (impurities) contained in the recycled aggregate and recycled roadbed material by the wind force of the blower are used. Since it is possible to separate and remove the lightweight material of (1), it is possible to efficiently recover high-quality recycled aggregate and recycled roadbed material at low cost. According to the second aspect of the present invention, the components having a predetermined particle size or less, which have been sieved by the second sieving device, and the components which have passed through the upper stage sieve of the vibration tilt sieving device are collected together, so that the regenerated bone to be recovered is recovered. The amount of wood and recycled roadbed material can be increased. According to the third aspect of the invention, it is possible to separate and remove lightweight materials such as wood chips and vinyl contained in the components having a predetermined particle size or less, which are sieved by the second sieving apparatus, by the wind force of the blower. A large amount of good quality aggregate and roadbed material can be efficiently collected at low cost. According to the invention according to claim 4, it becomes possible to more reliably remove the wood scraps, vinyl and other lightweight materials contained in the components having a predetermined particle size or less, which have been sieved by the second sieving apparatus, and are recovered. The quality of the recycled aggregate and the roadbed material can be further improved.
【図１】本発明に係る再生骨材及び再生路盤材の回収方
法の工程の一例を示すフローシートである。FIG. 1 is a flow sheet showing an example of steps of a method of collecting recycled aggregate and recycled roadbed material according to the present invention.
【図２】ふるい装置の構造を拡大して示す概略図であ
る。FIG. 2 is a schematic view showing an enlarged structure of a sieving device.
【図３】搬送装置同士の位置関係と送風機による風の方
向を示す図である。FIG. 3 is a diagram showing the positional relationship between the transport devices and the direction of the wind from the blower.
３ グリズリーフィーダー ４ 1次破砕機 ５ 搬送装置 ６ ふるい装置 ６１ 上段ふるい ６２ 下段ふるい ６４ 第１ホッパー ６５ 第２ホッパー ６６ 送風機 ６７ 分岐板 ６８ 不純物回収ホッパー ６９ 第１不純物受け １２ 第２ふるい装置 １４ 搬送装置（上流側の第１搬送装置） １５ 搬送装置（下流側の第１搬送装置） １６ 搬送装置（第２搬送装置） １７ 送風機（第３送風機） １８ 送風機（第２送風機） １９ 第２不純物受け 3 Grizzly feeder 4 Primary crusher 5 Conveyor 6 sieving equipment 61 upper sieve 62 Lower sieve 64 1st hopper 65 Second Hopper 66 blower 67 Branch plate 68 Impurity Recovery Hopper 69 Received first impurity 12 Second sieving device 14 Transport device (upstream first transport device) 15 Transport device (downstream first transport device) 16 Transfer device (second transfer device) 17 Blower (third blower) 18 Blower (second blower) 19 Second impurity received
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０９Ｂ 3/00 ＺＡＢ Ｅ０１Ｃ 19/05 5/00 Ｂ０９Ｂ 3/00 ＺＡＢＺ Ｅ０１Ｃ 19/05 5/00 Ｆ Ｆターム(参考） 2D052 AA04 AA15 BA03 BA08 DA02 DA14 4D004 AA33 AA34 BA02 CA04 CA08 CB46 4D021 AA03 AB02 CA05 EA10 EB01 FA03 GA02 GA12 GB01 GB02 HA01 4D067 EE04 EE14 EE18 EE22 GA06 GB05 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B09B 3/00 ZAB E01C 19/05 5/00 B09B 3/00 ZABZ E01C 19/05 5/00 F F term (Reference) 2D052 AA04 AA15 BA03 BA08 DA02 DA14 4D004 AA33 AA34 BA02 CA04 CA08 CB46 4D021 AA03 AB02 CA05 EA10 EB01 FA03 GA02 GA12 GB01 GB02 HA01 4D067 EE04 EE14 EE18 EE22 GA06 GB05
Claims (4)
の廃棄物を破砕装置に供給して所定の大きさに破砕し、
該破砕された廃棄物をふるい装置に供給して所定粒度毎
にふるい分けして再生骨材及び再生路盤材を回収する方
法であって、前記ふるい装置が、傾斜して設けられた上
段ふるい及び下段ふるいと、該下段ふるいの下方に設け
られた排出ホッパーとを備え、該排出ホッパーは下段ふ
るいの上流側に設けられた第１ホッパーと下流側に設け
られた第２ホッパーとからなり、前記下段ふるい下方位
置には傾斜下流側に向けて風を吹き付ける送風機が配置
された振動傾斜ふるい装置であって、前記送風機によっ
て、該振動傾斜ふるい装置の下段ふるいを通過できずに
ふるい傾斜下端部から落下する落下物のうち、軽量成分
を吹き飛ばして不純物として回収し、吹き飛ばされずに
そのまま落下した重量成分を再生骨材及び再生路盤材と
して回収することを特徴とする風力選別を利用した再生
骨材及び再生路盤材の回収方法。1. A waste material such as a concrete waste material or an asphalt waste material is supplied to a crushing device and crushed to a predetermined size,
A method for recovering recycled aggregate and recycled roadbed material by supplying the crushed waste to a sieving device and sieving it according to a predetermined particle size, wherein the sieving device is an upper screen and a lower screen that are installed at an inclination. And a discharge hopper provided below the lower stage sieve, the discharge hopper comprising a first hopper provided on the upstream side of the lower stage sieve and a second hopper provided on the downstream side. A vibrating slanting sieving device in which a blower that blows air toward the downstream side of the slant is arranged at a lower position of the sieving. Among the fallen objects, the light weight components are blown off and collected as impurities, and the heavy components that are not blown off and fallen as they are are collected as recycled aggregate and recycled roadbed material. Method for recovering recycled aggregate and reproducing roadbed utilizing air classifiers characterized.
グリズリーフィーダーにより大径成分と小径成分とに選
別し、該選別された大径成分を前記破砕装置に供給する
とともに、小径成分を第２ふるい装置に供給してふるい
分けし、該ふるい分けされた所定粒径以下の成分を、前
記振動傾斜ふるい装置のふるいを通過した成分と合わせ
て再生骨材及び再生路盤材として回収することを特徴と
する請求項1記載の風力選別を利用した再生骨材及び再
生路盤材の回収方法。2. Before the waste is supplied to the crushing device, it is sorted into a large-diameter component and a small-diameter component by a grizzly feeder, and the selected large-diameter component is supplied to the crushing device, and at the same time, the small-diameter component is supplied. It is supplied to a second sieving device and sieved, and the components having a predetermined particle size or less, which have been sieved, are collected as recycled aggregate and recycled base course material together with the components that have passed through the sieve of the vibrating tilted sieving device. A method of recovering recycled aggregate and recycled roadbed material using the wind power selection according to claim 1.
た所定粒径以下の成分を搬送する第１搬送装置の終端部
を、前記第２ホッパーに排出された成分を搬送する第２
搬送装置の始端部の上方に配置するとともに、前記第１
搬送装置から第２搬送装置に供給される成分に向けて風
を吹き付ける第２送風機を備えてなることを特徴とする
請求項２記載の風力選別を利用した再生骨材及び再生路
盤材の回収方法。3. A second conveyor for conveying the component discharged to the second hopper, through a terminal end portion of a first conveyor for conveying a component having a predetermined particle diameter or less, which is sieved by the second sieving apparatus.
It is arranged above the starting end of the transfer device and is
The method for collecting regenerated aggregate and reclaimed roadbed material using wind power sorting according to claim 2, further comprising a second blower for blowing air toward the components supplied from the conveying device to the second conveying device. .
配設された少なくとも２つの搬送装置からなり、該２つ
の搬送装置のうち上流側の搬送装置の終端部を下流側の
搬送装置の始端部の上方に配置するとともに、該上流側
搬送装置から下流側搬送装置に供給される成分に向けて
風を吹き付ける第３送風機を備えてなることを特徴とす
る請求項３記載の風力選別を利用した再生骨材及び再生
路盤材の回収方法。4. The first transporting device comprises at least two transporting devices arranged at right angles to each other, and the end portion of the upstream transporting device of the two transporting devices is connected to the downstream transporting device. The wind power sorter according to claim 3, further comprising a third blower which is disposed above the starting end portion and blows air toward the components supplied from the upstream side transport device to the downstream side transport device. A method of collecting recycled aggregate and recycled roadbed material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002010653A JP3641242B2 (en) | 2002-01-18 | 2002-01-18 | Recovery method of recycled aggregate and recycled roadbed material using wind sorting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002010653A JP3641242B2 (en) | 2002-01-18 | 2002-01-18 | Recovery method of recycled aggregate and recycled roadbed material using wind sorting |
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| Publication Number | Publication Date |
|---|---|
| JP2003211092A true JP2003211092A (en) | 2003-07-29 |
| JP3641242B2 JP3641242B2 (en) | 2005-04-20 |
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|---|---|---|---|
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| AU2009200140B2 (en) * | 2008-01-15 | 2011-04-07 | General Kinematics Corporation | Separator attachment for a vibratory apparatus |
| KR101071464B1 (en) | 2011-03-14 | 2011-10-10 | 한빛테크원 (주) | Composting Equipment |
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| CN113751156A (en) * | 2021-10-14 | 2021-12-07 | 西安聚实废旧金属再生利用有限公司 | Abandonment reinforcing bar sorting system |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100814086B1 (en) * | 2007-05-07 | 2008-03-20 | 두제산업개발(주) | Apparatus and method for producing high-strength eco-friendly recycled aggregates by crushing construction waste |
| AU2009200140B2 (en) * | 2008-01-15 | 2011-04-07 | General Kinematics Corporation | Separator attachment for a vibratory apparatus |
| JP2011224460A (en) * | 2010-04-19 | 2011-11-10 | Fukui Clean System:Kk | Apparatus for sorting waste |
| KR101071464B1 (en) | 2011-03-14 | 2011-10-10 | 한빛테크원 (주) | Composting Equipment |
| CN107377360A (en) * | 2017-07-31 | 2017-11-24 | 福建南方路面机械有限公司 | A kind of asphalt-regenerating material power screen sizing apparatus and screening system |
| CN107377106B (en) * | 2017-08-01 | 2019-06-25 | 石家庄沐田农业科技有限公司 | A kind of feed crushing classified collection device |
| CN107377106A (en) * | 2017-08-01 | 2017-11-24 | 石家庄沐田农业科技有限公司 | A kind of feed crushes classified collection device |
| CN107899934A (en) * | 2017-11-27 | 2018-04-13 | 安徽拓宝增材制造科技有限公司 | A screening device and method for metal powder |
| JP7321253B2 (en) | 2018-04-28 | 2023-08-04 | ディール、ディフェンス、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング、ウント、コンパニー、コマンディトゲゼルシャフト | Systems and methods for electrodynamic fragmentation |
| JP2021522069A (en) * | 2018-04-28 | 2021-08-30 | ディール、ディフェンス、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング、ウント、コンパニー、コマンディトゲゼルシャフトＤｉｅｈｌ Ｄｅｆｅｎｃｅ Ｇｍｂｈ ＆ Ｃｏ． Ｋｇ | Systems and methods for electromechanical fragmentation |
| CN108638338A (en) * | 2018-07-31 | 2018-10-12 | 宜昌鑫大兴混凝土有限公司 | Bridge pier is poured matches concrete production system and preparation process with multistage |
| JP7289695B2 (en) | 2019-03-28 | 2023-06-12 | Ｊｆｅスチール株式会社 | Used refractory sorting method and sorting device |
| JP2020163256A (en) * | 2019-03-28 | 2020-10-08 | Ｊｆｅスチール株式会社 | Selection method and selection device of used refractory material |
| CN110252476A (en) * | 2019-06-19 | 2019-09-20 | 安徽恨水茶业有限公司 | A kind of tea processing grinding device of good crushing effect |
| CN110665623A (en) * | 2019-08-28 | 2020-01-10 | 浙江中液机械设备有限公司 | Movable type crushing and screening equipment screening device |
| CN111842158B (en) * | 2020-08-11 | 2022-01-21 | 通渭县乐百味食品有限责任公司 | Automatic screening machine for grain and cereal |
| CN111842158A (en) * | 2020-08-11 | 2020-10-30 | 徐亚洁 | Automatic screening machine for grain and cereal |
| CN113751156A (en) * | 2021-10-14 | 2021-12-07 | 西安聚实废旧金属再生利用有限公司 | Abandonment reinforcing bar sorting system |
| CN114558875A (en) * | 2022-02-18 | 2022-05-31 | 深圳市城建环艺科技有限公司 | Building energy conservation environmental protection is with dustless recovery unit of waste material |
| CN114653460A (en) * | 2022-04-27 | 2022-06-24 | 广西美斯达工程机械设备有限公司 | Material accumulation type crushing and screening production line and screening method |
| CN114653460B (en) * | 2022-04-27 | 2023-11-17 | 广西美斯达工程机械设备有限公司 | Accumulated material type crushing and screening production line and screening method |
| CN114769275A (en) * | 2022-05-18 | 2022-07-22 | 福建南方路面机械股份有限公司 | Construction waste foamed concrete screening method and screening equipment |
| CN115387176A (en) * | 2022-09-15 | 2022-11-25 | 徐州锐马重工机械有限公司 | Vibration cold regenerator and mixing method of regenerator |
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