CN109127658A - A kind of building castoff recycling technique - Google Patents

A kind of building castoff recycling technique Download PDF

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Publication number
CN109127658A
CN109127658A CN201810878315.4A CN201810878315A CN109127658A CN 109127658 A CN109127658 A CN 109127658A CN 201810878315 A CN201810878315 A CN 201810878315A CN 109127658 A CN109127658 A CN 109127658A
Authority
CN
China
Prior art keywords
aggregate
reworked
building
building castoff
sorting
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.)
Pending
Application number
CN201810878315.4A
Other languages
Chinese (zh)
Inventor
叶良锐
邬敏
刘甫山
叶莉婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lujiang Rong Rui Construction Engineering Co Ltd
Original Assignee
Lujiang Rong Rui Construction Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lujiang Rong Rui Construction Engineering Co Ltd filed Critical Lujiang Rong Rui Construction Engineering Co Ltd
Priority to CN201810878315.4A priority Critical patent/CN109127658A/en
Publication of CN109127658A publication Critical patent/CN109127658A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B5/00Operations not covered by a single other subclass or by a single other group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27LREMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/06Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood powder or sawdust
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/58Construction or demolition [C&D] waste
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/78Recycling of wood or furniture waste

Abstract

The invention discloses a kind of building castoffs to recycle technique, including following process: sorting process after concentrating building castoff, classifies, is divided into residual concrete, aggregate and non-aggregate;Wherein aggregate carries out treatment in situ;Iron removal step is crushed the aggregate containing metal, removes iron tramp therein;The aggregate of not ferrous contaminants is put together carry out break process by broken process;Process is sieved, fine screen point is carried out to broken aggregate;Reworked material treatment process builds reworked material applied to subgrade and pavement.The present invention is after traditional sorting process, the aggregate high to accounting in building castoff carries out treatment in situ and is then applied to subgrade and pavement construction, compared with traditional simple landfill disposal for abandoned building progress, transportation cost can be saved, the material cost of subgrade and pavement construction is also reduced simultaneously, is had broad application prospects and significant practical significance.

Description

A kind of building castoff recycling technique
Technical field
The present invention relates to the realm of building construction, specifically a kind of building castoff recycles technique.
Background technique
With industrialization, the acceleration of urbanization process, construction industry is also fast-developing simultaneously, the construction waste generated together Object is increasing, and the quantity of Chinese architecture waste has accounted for 1/3 of municipal refuse total amount or more.By 2011, Chinatown City's solid life refuse storage can calculate that building castoff total amount is 2,100,000,000 to 2,800,000,000 tons up to 7,000,000,000 tons, and annual new generate is built Building waste is more than 300,000,000 tons.Simple stacking mode is such as taken to handle, the processing of annual newly-increased building castoff will all account for 1.5 Hundred million to 200,000,000 square metres of lands used.
China is in the economic construction high-speed developing period, is inevitably generated several hundred million tons of building castoffs every year.Such as Fruit handles and utilizes not in time, will bring adverse effect to society, environment and resource.The quantity of China's building castoff has accounted for To the 30%-40% of municipal refuse total amount.It is calculated with 500-600 tons/ten thousand square metres of standard, arrives the year two thousand twenty, China will also be new Increase about 30,000,000,000 square metres of construction area, newly generated building castoff will be a shocking number.However, exhausted big portion Divide building castoff without any processing, countryside or rural area, air storage or landfill are just transported to by unit in charge of construction, consumes a large amount of The pork barrels such as land acquisition expense, refuse collection expense, meanwhile, it clears and is flown upward with dropping in stacking process with dust, sand-lime Problem causes serious environmental pollution again.
Traditional way is sorted to building castoff, the high mineral waste of accounting therein is carried out simple Landfill disposal thus be easy to cause the waste of resource, while waste again also transported in the process by landfill disposal, comprehensive Total higher cost through calculating.
Summary of the invention
The purpose of the present invention is to provide a kind of building castoffs to recycle technique, to solve to propose in above-mentioned background technique The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of building castoff recycling technique, including following process:
Sort process
After building castoff is concentrated, classify, is divided into residual concrete, aggregate and non-aggregate, what aggregate referred to It is the mineral materials such as old concrete, mortar, non-aggregate refers to the non-minerals material such as timber, paper, metal;Wherein aggregate carries out just Ground processing;
Iron removal step
Aggregate containing metal is crushed, iron tramp therein is removed;
Broken process
The aggregate of not ferrous contaminants is put together into carry out break process;
Sieve process
Fine screen point is carried out to broken aggregate;
Reworked material treatment process
Reworked material is divided into level-one, second level, three-level, is applied in building work after the reworked material of different stage is handled Pavement construction;
Wherein level-one reworked material, secondary regenerator material and broken cobblestone are carried out according to mass ratio 25-30:35-40:15-20 Mixing, as roadbed raw material;
Three-level reworked material, water are mixed with cement according to mass ratio 45-50:45-50:25-30, as road surface raw material.
As a further solution of the present invention: the timber generated in the sorting process is in addition to as template and construction timber Outside recycling, by log splitter, lane can be used as paper making raw material at clast or use as fuel, or for density in manufacturing Fiberboard.
As a further solution of the present invention: the sorted Hou Song steel plant or coloured of metal generated in the sorting process Metallurgical works freshening.
As a further solution of the present invention: the cullet sorting Hou Song glass factory generated in the sorting process or crystallite Raw materials for production do in glass factory.
As a further solution of the present invention: the sorted Hou Song steel plant of iron tramp come are eliminated in the iron removal step Or non-ferrous metals smelting works' freshening.
As a further solution of the present invention: the broken process should be equipped with water injector or exhaust fan when carrying out, It carries out depositing dust or takes out dirt processing, to meet ecological requirements.
As a further solution of the present invention: the fine screen point, will be all miscellaneous in aggregate using the method for manual sorting Matter sorts away, and disaggregatedly stores, and the impurity of corresponding classification is handled according to the method in sorting process.
As a further solution of the present invention: the reworked material impregnates reworked material using organic siliconresin, so that Organic siliconresin film-forming in reworked material gap blocks gap and the crackle on reworked material surface.
Compared with prior art, the beneficial effects of the present invention are:
For the present invention after traditional sorting process, it is right that the aggregate high to accounting in building castoff carries out treatment in situ It is applied to subgrade and pavement afterwards to build, compared with traditional simple landfill disposal for abandoned building progress, transport can be saved Cost, while the material cost of subgrade and pavement construction is also reduced, it has broad application prospects and significant practical significance.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment, it is clear that described Embodiment be only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ability Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to guarantor of the present invention The range of shield.
A kind of building castoff recycling technique, including
Sort process
After building castoff is concentrated, classify, it is (mixed not using what is fallen in architectural engineering to be divided into residual concrete Solidifying soil), aggregate and non-aggregate, wherein aggregate refers to the mineral materials such as old concrete, mortar, non-aggregate refer to timber, The non-minerals material such as paper, metal;
Aggregate carries out treatment in situ;
Timber as template and construction timber other than recycling, and by log splitter, does to can be used as papermaking at clast Raw material is used as fuel, or for manufacturing medium density fibre board (MDF);
The sorted Hou Song steel plant of metal or non-ferrous metals smelting works' freshening;
Raw materials for production do in cullet sorting Hou Song glass factory or devitrified glass factory;
Iron removal step
Aggregate containing metal is crushed, iron tramp therein is removed, the iron tramp eliminated is same to sort process In the equally sorted Hou Song steel plant of metal or non-ferrous metals smelting works' freshening.
Broken process
The aggregate of not ferrous contaminants is put together into carry out break process, when specific operation, utilizes hydraulic hammer, hydraulic shear etc. Bulk aggregate is crushed by setting, and water injector should be equipped in shattering process, and perhaps exhaust fan carries out depositing dust or takes out dirt processing, from And meet ecological requirements.
Sieve process
Fine screen point is carried out to broken aggregate, the main function of fine screen point is to separate the fines in aggregate, is allowed The aggregate of appropriate partial size enters reworked material treatment process, and the method that wherein fine screen point preferably uses manual sorting, manual sorting is most Original method, efficiency is more low, but effect is really best, and the purpose is to as far as possible by all impurity in aggregate It is sorted away by manual identified, and disaggregatedly stored, the impurity of corresponding classification is carried out according to the method in sorting process Processing;
Relatively fewer containing sundries in aggregate due to entering again the sub-material classification stage, screening out the finished product material come can be direct As reworked material, it can also further sieve and be classified, crusher can also be again introduced into, be used after broken;
Reworked material treatment process
Classification is carried out according to the following table in reworked material, is divided into level-one, second level, three-level.
Project Level-one Second level Three-level
Apparent relative density ≥2.50 ≥2.35 ≥2.30
Water absorption rate (%) ≤3 ≤12 ≤15
Crush values (%) ≤29 ≤32 ≤36
Los Angeles wearing valve (%) ≤25 ≤32 ≤34
Brick and tile content (%) ≤8 ≤20 ≤40
Reworked material is impregnated using organic siliconresin, so that the organic siliconresin film-forming in reworked material gap, Gap and the crackle on reworked material surface are blocked, to reduce the water absorption rate of reworked material.
The pavement construction being applied in building work after the reworked material of different stage is handled.
Wherein level-one reworked material, secondary regenerator material and broken cobblestone are carried out according to mass ratio 25-30:35-40:15-20 Mixing, as roadbed raw material;
Three-level reworked material, water are mixed with cement according to mass ratio 45-50:45-50:25-30, as road surface raw material.
Compared with traditional simple landfill disposal for abandoned building progress, place is crushed on the spot to building castoff Reason, produces the reworked material of different stage, and re-apply in road construction, can save transportation cost, while also reducing road The material cost of base pavement construction.
In summary analysis must can be controlled, in road surface application field, building castoff reworked material it is with the obvious advantage, with wide Application prospect and significant practical significance.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (8)

1. a kind of building castoff recycles technique, which is characterized in that including following process:
Sort process
After building castoff is concentrated, classify, is divided into residual concrete, aggregate and non-aggregate, aggregate and refers to old The mineral materials such as concrete, mortar, non-aggregate refer to the non-minerals material such as timber, paper, metal;Wherein aggregate is just located in Reason;
Iron removal step
Aggregate containing metal is crushed, iron tramp therein is removed;
Broken process
The aggregate of not ferrous contaminants is put together into carry out break process;
Sieve process
Fine screen point is carried out to broken aggregate;
Reworked material treatment process
Reworked material is divided into level-one, second level, three-level, and the road surface in building work is applied to after the reworked material of different stage is handled Construction;
Wherein level-one reworked material, secondary regenerator material are mixed with broken cobblestone according to mass ratio 25-30:35-40:15-20, As roadbed raw material;
Three-level reworked material, water are mixed with cement according to mass ratio 45-50:45-50:25-30, as road surface raw material.
2. building castoff according to claim 1 recycles technique, which is characterized in that generated in the sorting process Timber as template and construction timber other than recycling, and by log splitter, does to can be used as paper making raw material or work at clast It is used for fuel, or for manufacturing medium density fibre board (MDF).
3. building castoff according to claim 2 recycles technique, which is characterized in that generated in the sorting process The sorted Hou Song steel plant of metal or non-ferrous metals smelting works' freshening.
4. building castoff according to claim 3 recycles technique, which is characterized in that generated in the sorting process Raw materials for production do in cullet sorting Hou Song glass factory or devitrified glass factory.
5. building castoff according to claim 4 recycles technique, which is characterized in that eliminated in the iron removal step The sorted Hou Song steel plant of iron tramp come or non-ferrous metals smelting works' freshening.
6. -5 any building castoffs recycle technique according to claim 1, which is characterized in that the broken process exists Water injector should be equipped with when progress, and perhaps exhaust fan carries out depositing dust or takes out dirt processing.
7. building castoff according to claim 6 recycles technique, which is characterized in that the fine screen point is using artificial point All impurity in aggregate are sorted away, and disaggregatedly stored by the method picked, and the impurity of corresponding classification is according to sorting work Method in sequence is handled.
8. building castoff according to claim 7 recycles technique, which is characterized in that the reworked material uses organosilicon Resin impregnates reworked material, so that the organic siliconresin film-forming in reworked material gap, blocks the sky on reworked material surface Gap and crackle.
CN201810878315.4A 2018-08-03 2018-08-03 A kind of building castoff recycling technique Pending CN109127658A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111112288A (en) * 2019-12-19 2020-05-08 南京星佛管业有限公司 Method for recycling construction waste with high recycling rate

Citations (6)

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Publication number Priority date Publication date Assignee Title
CN103359965A (en) * 2013-07-02 2013-10-23 大理兆平建筑垃圾处理有限责任公司 Method for producing sand for making brick from construction waste
CN103964718A (en) * 2014-04-25 2014-08-06 桑德环境资源股份有限公司 Method for treating construction waste
CN104261715A (en) * 2014-08-27 2015-01-07 广东新谷科技有限公司 Construction waste recycling technology
KR101573036B1 (en) * 2015-03-16 2015-12-02 한국건설기술연구원 Apparatus and Method for Producing Recycled Aggregate
CN105903745A (en) * 2016-04-25 2016-08-31 深圳市环鹏环保科技有限公司 Construction waste on-site processing method
CN106830728A (en) * 2016-12-30 2017-06-13 中建西部建设西南有限公司 One kind building solid waste best quality handling process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103359965A (en) * 2013-07-02 2013-10-23 大理兆平建筑垃圾处理有限责任公司 Method for producing sand for making brick from construction waste
CN103964718A (en) * 2014-04-25 2014-08-06 桑德环境资源股份有限公司 Method for treating construction waste
CN104261715A (en) * 2014-08-27 2015-01-07 广东新谷科技有限公司 Construction waste recycling technology
KR101573036B1 (en) * 2015-03-16 2015-12-02 한국건설기술연구원 Apparatus and Method for Producing Recycled Aggregate
CN105903745A (en) * 2016-04-25 2016-08-31 深圳市环鹏环保科技有限公司 Construction waste on-site processing method
CN106830728A (en) * 2016-12-30 2017-06-13 中建西部建设西南有限公司 One kind building solid waste best quality handling process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111112288A (en) * 2019-12-19 2020-05-08 南京星佛管业有限公司 Method for recycling construction waste with high recycling rate

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Application publication date: 20190104

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