JPH06157093A - Production equipment for reclaimed aggregate - Google Patents
Production equipment for reclaimed aggregateInfo
- Publication number
- JPH06157093A JPH06157093A JP31545592A JP31545592A JPH06157093A JP H06157093 A JPH06157093 A JP H06157093A JP 31545592 A JP31545592 A JP 31545592A JP 31545592 A JP31545592 A JP 31545592A JP H06157093 A JPH06157093 A JP H06157093A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- cement
- water
- aggregate
- aggregates
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000007788 liquid Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims 1
- 239000008247 solid mixture Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 abstract description 23
- 238000005406 washing Methods 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 11
- 239000006148 magnetic separator Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 239000004848 polyfunctional curative Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Processing Of Solid Wastes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コンクリートを破砕
し、鉄筋、セメント粉末などを除去し、骨材（セメント
ペーストによって一体に固められる砂・じゃりなどの不
活性な粒状の材料）を再生する再生骨材生産設備に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention crushes concrete, removes rebar, cement powder, etc., and recycles aggregate (inert granular material such as sand and jelly solidified together by cement paste). It relates to recycled aggregate production equipment.
【０００２】[0002]
【従来の技術】従来、コンクリート構造物の解体などに
より発生する原コンクリートから骨材を再生する再生骨
材生産設備は、原コンクリートを破砕し、鉄筋を除去
し、次に破砕原コンクリート同士を擦り合わせて、付着
した木材や土などの不要物、セメント硬化物、セメント
粉末を表面から分離し、その後分離した付着物を洗浄す
ることで、骨材を再生している。2. Description of the Related Art Conventionally, recycled aggregate production equipment that recycles aggregate from raw concrete generated by dismantling concrete structures, etc., crushes the raw concrete, removes the reinforcing bars, and then rubs the crushed raw concrete together. In addition, aggregates are regenerated by separating unnecessary substances such as adhered wood and soil, hardened cement, and cement powder from the surface, and then washing the separated separated substances.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記再生骨材
生産設備では、原コンクリートの破砕時、擦り合わせ時
に大きな騒音が発生し、また付着物が微粉となり、ホコ
リとして外部に飛び散ることから、環境を悪化させると
いう問題があった。また、後工程で再生骨材から分離し
た付着物を洗浄しなければならず、時間的にも効率が悪
いという問題があった。However, in the above recycled aggregate production facility, a large noise is generated when the raw concrete is crushed and rubbed, and the adhered substance becomes fine powder and scatters as dust to the environment. There was a problem of worsening. In addition, there is a problem that the adhered matter separated from the recycled aggregate must be washed in a later step, which is inefficient in terms of time.
【０００４】本発明は上記問題を解決するものであり、
効率を改善し、さらに騒音とホコリの発生を抑制し、環
境に優しい再生骨材生産設備を提供することを目的とす
るものである。The present invention solves the above problems,
It is an object of the present invention to improve efficiency, suppress noise and dust generation, and provide an environment-friendly recycled aggregate production facility.
【０００５】[0005]
【課題を解決するための手段】上記問題を解決するため
本発明の再生骨材生産設備は、コンクリートを破砕し、
鉄筋を除去し、骨材を再生する再生骨材生産設備であっ
て、前記鉄筋を除去した破砕コンクリートを高速ジェッ
ト水で移送する混気ジェット装置を設け、その下流に固
体−液体分離器を配置したことを特徴とするものであ
る。In order to solve the above-mentioned problems, the recycled aggregate production equipment of the present invention crushes concrete,
A recycled aggregate production facility that removes rebar and regenerates aggregate, which is provided with an air-mixing jet device that transfers crushed concrete from which the rebar has been removed by high-speed jet water, and a solid-liquid separator is arranged downstream thereof. It is characterized by having done.
【０００６】[0006]
【作用】上記構成により、混気ジェット装置において、
破砕コンクリートは高速ジェット水によって互いに接触
し、また水の作用によりセメント硬化材およびセメント
粉末が軟化することで、破砕コンクリートから表面に付
着したセメント硬化材およびセメント粉末が分離された
骨材が再生され、この骨材は固体−液体分離器において
セメント硬化材およびセメント粉末を含んだ濁水と分離
されて生産される。With the above structure, in the air-fuel mixture jet device,
Crushed concrete comes into contact with each other by high-speed jet water, and the action of water softens the cement hardening material and cement powder, thereby regenerating the aggregate from which the cement hardening material and cement powder adhering to the surface of the crushed concrete have been separated. The aggregate is produced in a solid-liquid separator by separating it from turbid water containing cement hardener and cement powder.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１は、本発明の一実施例における再生骨材生
産設備の構成図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a recycled aggregate production facility according to an embodiment of the present invention.
【０００８】解体現場において、コンクリート構造物１
を解体することにより発生したコンクリート廃材２は、
輸送可能な大塊の原コンクリート３に粗割され、再生骨
材生産設備に搬入される。At the demolition site, the concrete structure 1
Concrete waste material 2 generated by dismantling
It is roughly crushed into a large mass of raw concrete 3 that can be transported, and is carried into a recycled aggregate production facility.
【０００９】本発明の再生骨材生産設備は、ふるい、コ
ンベヤ、破砕機、磁選機、混気ジェット装置などから構
成されており、工程にそってその設備を説明する。前記
搬入された大塊の原コンクリート３はグリズリ（粗粒用
のふるい）４に投入され、このグリズリ４により、大塊
からコンクリート３からその所定の大きさ以下の原コン
クリート片3Aが分離され、この原コンクリート片3Aはコ
ンベヤ５により搬送されて、さらに細粒のふるい６に投
入されて土砂が分離され、分離された土砂はコンベヤ７
により排出される。またグリズリ４上の大塊の原コンク
リート３はジョークラッシャ８に投入され、小割りされ
てコンベヤ９により１次磁選機10へ搬送される。この１
次磁選機10により小割りされた原コンクリート11から鉄
筋12が選別され、選別された鉄筋12はコンベヤ13により
搬出される。鉄筋12が除去された小割り原コンクリート
11と、コンベヤ14により搬送されたふるい６上の原コン
クリート片3Aは、１次破砕機15に投入される。The recycled aggregate production equipment of the present invention comprises a sieve, a conveyor, a crusher, a magnetic separator, an air-mixing jet device, etc., and the equipment will be described along the process. The loaded large concrete raw concrete 3 is put into a grizzly (sieve for coarse particles) 4, and the grizzly 4 separates the concrete 3 from the large lump into an original concrete piece 3A having a predetermined size or less, This raw concrete piece 3A is conveyed by a conveyor 5, and is further put into a fine-grained sieve 6 to separate the earth and sand, and the separated earth and sand is conveyed by the conveyor 7.
Is discharged by. Further, a large lump of the raw concrete 3 on the grizzly 4 is put into the jaw crusher 8, divided into small pieces, and conveyed by the conveyor 9 to the primary magnetic separator 10. This one
The rebar 12 is selected from the raw concrete 11 that has been subdivided by the next magnetic separator 10, and the selected rebar 12 is carried out by the conveyor 13. Small original cracked concrete with rebar 12 removed
11 and the raw concrete piece 3A on the sieve 6 conveyed by the conveyor 14 are put into the primary crusher 15.
【００１０】この１次破砕機15により破砕された１次破
砕コンクリート16はコンベヤ17により２次磁選機18へ搬
送され、２次磁選機18によりこの１次破砕原コンクリー
ト16から鉄筋12が選別され、選別された鉄筋12はコンベ
ヤ19により搬出される。The primary crushed concrete 16 crushed by the primary crusher 15 is conveyed by the conveyor 17 to the secondary magnetic separator 18, and the secondary magnetic separator 18 selects the rebar 12 from the primary crushed original concrete 16. The selected reinforcing bars 12 are carried out by the conveyor 19.
【００１１】鉄筋12が除去された１次破砕原コンクリー
ト16はふるい20に投入され、ふるい20で分離された細粒
原コンクリート21は、混気ジェット装置26のパイプ22内
を高速ジェット水により移送され〔パイプ22内は３相
（空気、水、固体）流の高速ジェットとなる〕、第１の
固体−液体分離器23へ投入される。また、ふるい20上の
粗粒原コンクリート16Ａも混気ジェット装置26’のパイ
プ24内を高速ジェット水により移送され、第２の固体−
液体分離器25へ投入される。The primary crushed raw concrete 16 from which the reinforcing bars 12 have been removed is put into a sieve 20, and the fine-grained raw concrete 21 separated by the sieve 20 is transferred by high-speed jet water in a pipe 22 of an air-mixing jet device 26. Then, the inside of the pipe 22 becomes a high-speed jet of a three-phase (air, water, solid) flow, and is injected into the first solid-liquid separator 23. Further, the coarse-grained raw concrete 16A on the sieve 20 is also transferred by the high-speed jet water in the pipe 24 of the air-fuel mixture jet device 26 ', and the second solid-
It is put into the liquid separator 25.
【００１２】上記混気ジェット装置26、26’は、パイプ
22，24の上流に高圧の洗浄水を供給する高圧ポンプ27，
27’、および配管28，28’、空気を供給する空気弁29，
29’、高圧の洗浄水と空気を混合してパイプ22，24内に
噴出するジェットノズル30，30’から構成されている。
パイプ22，24内において、それぞれ原コンクリート21、
16Ａは、互いに接触し、また水により付着したセメント
硬化材・セメント粉末が軟化し、骨材21’，16Ａ’と、
セメント硬化材・セメント粉末が混合された濁水に分離
される。The mixed air jet device 26, 26 'is a pipe.
High-pressure pump 27, which supplies high-pressure washing water upstream of 22, 24
27 'and piping 28, 28', air valve 29 for supplying air
29 ', and jet nozzles 30 and 30' for mixing high-pressure washing water and air and ejecting the mixture into the pipes 22 and 24.
In the pipes 22 and 24, the raw concrete 21,
16A is in contact with each other, and the cement hardening material / cement powder adhered by water is softened, and aggregates 21 'and 16A' are
Separated into turbid water in which cement hardener and cement powder are mixed.
【００１３】前記第２の固体−液体分離器25で濁水と分
離された骨材16Ａ’は、２次破砕機31によりさらに破砕
され、コンベヤ32で風力選別機33へ投入され、また第１
の固体−液体分離器23で濁水と分離された骨材21’もコ
ンベヤ34により風力選別機33へ投入される。この風力選
別機33により、粒の大きさによって粗骨材35、細骨材36
などに分級される。The aggregate 16A 'separated from the turbid water in the second solid-liquid separator 25 is further crushed by the secondary crusher 31 and fed into the wind separator 33 by the conveyor 32, and the first crusher is also used.
The aggregate 21 ′ separated from the turbid water by the solid-liquid separator 23 is also fed to the wind separator 33 by the conveyor 34. With this wind power sorter 33, depending on the size of the grain, coarse aggregate 35 and fine aggregate 36
Be classified into.
【００１４】また固体−液体分離器23，25で分離された
濁水、すなわち骨材21’，16Ａ’に付着していたセメン
ト硬化物およびセメントを含むスラリ状の液体は、タン
ク37，37’に一時貯留され、ポンプ38，38’により水処
理装置39，39’へ送られ、付着物と水に分離され、水は
上記混気ジェット装置26、26’の洗浄水として再使用さ
れる。40，40’は必要に応じ、水処理装置39，39’へ水
を補給する配管である。The turbid water separated by the solid-liquid separators 23 and 25, that is, the cement-like hardened material adhered to the aggregates 21 'and 16A' and the slurry-like liquid containing cement, are stored in the tanks 37 and 37 '. The water is temporarily stored, sent to the water treatment devices 39, 39 'by the pumps 38, 38', separated into adhered substances and water, and the water is reused as washing water for the air-fuel mixture jet devices 26, 26 '. 40 and 40 'are pipes for supplying water to the water treatment devices 39 and 39' as needed.
【００１５】このように、破砕された原コンクリート2
1、16Ａを３相流の高速ジェットにより移送することに
より、付着していたセメント硬化物およびセメント粉末
を分離した骨材21’，16Ａ’を再生することができる。
また、セメント硬化物およびセメント粉末が分離される
ことにより、性質を改善した再生骨材を獲ることができ
る。さらに、従来のような騒音、およびホコリの発生を
低減することができ、環境を改善できる。また、従来の
ような再生骨材を洗浄する後工程をなくすことができ、
効率を改善することができる。また、洗浄水は再使用さ
れることから、水資源の消費を抑えることができる。In this way, the crushed raw concrete 2
By transferring 1 and 16A by a high-speed jet of three-phase flow, it is possible to regenerate the aggregates 21 'and 16A' from which the cement hardened material and the cement powder that have adhered are separated.
Further, by separating the hardened cement product and the cement powder, it is possible to obtain a recycled aggregate having improved properties. Furthermore, it is possible to reduce the generation of noise and dust as in the conventional case, and it is possible to improve the environment. Further, it is possible to eliminate the post-process of washing the recycled aggregate as in the conventional case,
The efficiency can be improved. Further, since the wash water is reused, consumption of water resources can be suppressed.
【００１６】なお、本実施例では、２次破砕機31の前工
程に混気ジェット装置26’を配置しているが、２次破砕
機31の後工程に混気ジェット装置26’を配置するなど、
１次破砕機15の後工程では、混気ジェット装置26、26’
の配置を自由度をもって設定することも可能である。In this embodiment, the air-fuel mixture jet device 26 'is arranged in the pre-process of the secondary crusher 31, but the air-fuel mixture jet device 26' is arranged in the post-process of the secondary crusher 31. Such,
In the post-process of the primary crusher 15, the mixed air jet device 26, 26 '
It is also possible to set the arrangement of the with a degree of freedom.
【００１７】[0017]
【発明の効果】以上述べたように本発明によれば、破砕
コンクリートを高速ジェット水で移送することにより、
セメント硬化材およびセメント粉末が分離された骨材を
再生することができ、よって再生骨材の性質を改善で
き、また従来のような騒音、およびホコリの発生を低減
することができ、環境を改善できる。さらに従来のよう
な再生骨材を洗浄する後工程をなくすことができ、効率
を改善することができる。As described above, according to the present invention, by transferring crushed concrete with high-speed jet water,
Aggregate from which cement hardener and cement powder are separated can be regenerated, and thus the properties of regenerated aggregate can be improved, and noise and dust generation as in the past can be reduced, improving the environment. it can. Further, it is possible to eliminate the post-process of washing the recycled aggregate as in the conventional case, and it is possible to improve the efficiency.
【図１】本発明の一実施例における再生骨材生産設備の
構成図である。FIG. 1 is a configuration diagram of a recycled aggregate production facility according to an embodiment of the present invention.
１ コンクリート構造物 ２ コンクリート廃材 ３ 大塊の原コンクリート ４ グリズリ ６，20 ふるい ８ ジョークラッシャ 10，18 磁選機 12 鉄筋 15，31 破砕機 16Ａ，21 破砕原コンクリート 16Ａ’，21’ 骨材 22，24 パイプ 26，26’ 混気ジェット装置 27，27’ 高圧ポンプ 28，28’ 配管 29，29’ 空気弁 30，30’ ジェットノズル 33 風力選別機 35 粗骨材 36 細骨材 37，37’ タンク 39，39’ 水処理装置 1 Concrete structure 2 Concrete waste material 3 Large original concrete 4 Grizzly 6,20 Sieve 8 Jaw crusher 10,18 Magnetic separator 12 Reinforcing bar 15,31 Crusher 16A, 21 Crush original concrete 16A ', 21' Aggregate 22,24 Pipe 26, 26 'Mixed air jet device 27, 27' High pressure pump 28, 28 'Piping 29, 29' Air valve 30, 30 'Jet nozzle 33 Wind separator 35 Coarse aggregate 36 Fine aggregate 37, 37' Tank 39 , 39 'Water treatment equipment
Claims (1)
骨材を再生する再生骨材生産設備であって、 前記鉄筋を除去した破砕コンクリートを高速ジェット水
で移送する混気ジェット装置を設け、その下流に固体−
液体分離器を配置したことを特徴とする再生骨材生産設
備。1. Crushing concrete to remove rebar,
A recycled aggregate production facility for recycling aggregate, wherein an air-mixing jet device for transferring the crushed concrete from which the reinforcing bars have been removed by high-speed jet water is provided, and a solid mixture is provided downstream thereof
A recycled aggregate production facility characterized by the placement of a liquid separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31545592A JP2760720B2 (en) | 1992-11-26 | 1992-11-26 | Recycled aggregate production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31545592A JP2760720B2 (en) | 1992-11-26 | 1992-11-26 | Recycled aggregate production equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06157093A true JPH06157093A (en) | 1994-06-03 |
| JP2760720B2 JP2760720B2 (en) | 1998-06-04 |
Family
ID=18065574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31545592A Expired - Lifetime JP2760720B2 (en) | 1992-11-26 | 1992-11-26 | Recycled aggregate production equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2760720B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003073156A (en) * | 2001-09-03 | 2003-03-12 | Nishimatsu Constr Co Ltd | Recycled aggregate manufacturing machine and method |
| KR100689796B1 (en) * | 2006-12-18 | 2007-03-12 | 미래환경 주식회사 | Attached mortar eliminator for recycled coarse aggregate using blaster |
| KR100730688B1 (en) * | 2007-03-20 | 2007-06-21 | 두제산업개발(주) | Apparatus for selecting waste made of crushed waste-concrete |
| CN102974596A (en) * | 2012-12-13 | 2013-03-20 | 上海国砼环保设备有限公司 | Construction waste co-extrusion harmless treatment system and method thereof |
-
1992
- 1992-11-26 JP JP31545592A patent/JP2760720B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003073156A (en) * | 2001-09-03 | 2003-03-12 | Nishimatsu Constr Co Ltd | Recycled aggregate manufacturing machine and method |
| JP4676107B2 (en) * | 2001-09-03 | 2011-04-27 | 西松建設株式会社 | Recycled aggregate manufacturing apparatus and recycled aggregate manufacturing method |
| KR100689796B1 (en) * | 2006-12-18 | 2007-03-12 | 미래환경 주식회사 | Attached mortar eliminator for recycled coarse aggregate using blaster |
| KR100730688B1 (en) * | 2007-03-20 | 2007-06-21 | 두제산업개발(주) | Apparatus for selecting waste made of crushed waste-concrete |
| CN102974596A (en) * | 2012-12-13 | 2013-03-20 | 上海国砼环保设备有限公司 | Construction waste co-extrusion harmless treatment system and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2760720B2 (en) | 1998-06-04 |
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