CN108658489A - A kind of production technology making high strength recycled aggregate using construction waste - Google Patents

A kind of production technology making high strength recycled aggregate using construction waste Download PDF

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Publication number
CN108658489A
CN108658489A CN201810349686.3A CN201810349686A CN108658489A CN 108658489 A CN108658489 A CN 108658489A CN 201810349686 A CN201810349686 A CN 201810349686A CN 108658489 A CN108658489 A CN 108658489A
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China
Prior art keywords
construction waste
delivered
recycled aggregate
breaker
aggregate
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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
CN201810349686.3A
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Chinese (zh)
Inventor
赵素军
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Individual
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Individual
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Priority to CN201810349686.3A priority Critical patent/CN108658489A/en
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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02Treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00Magnetic separation
    • B03C1/02Magnetic separation acting directly on the substance being separated
    • B03C1/30Combinations with other devices, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04Waste materials; Refuse
    • C04B18/16Waste materials; Refuse from building or ceramic industry
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/02Treatment
    • C04B20/026Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10Coating or impregnating
    • C04B20/12Multiple coating or impregnating
    • 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
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a kind of production technologies making high strength recycled aggregate using construction waste, using multistage screening, targetedly by the eliminating impurities in construction waste, the content of sundries in construction waste is effectively reduced, the higher clean recycled aggregate of obtained intensity;By chemical grout infiltration and cement package, using the special property of the chemical substance of admixture, the crack of reparative regeneration aggregate is filled with hole while enhancing the caking property at interface well, considerably improves the performance and quality of recycled aggregate;Total, the present invention has the advantages that multistage screening, arranges reasonable, high intensity, is high performance.

Description

A kind of production technology making high strength recycled aggregate using construction waste
Technical field
The invention belongs to construction waste process fields, and in particular to a kind of to make high strength recycled aggregate using construction waste Production technology.
Background technology
With China's rapid development of economy, the construction waste that the whole nation is generated because dismounting goes out old building every year is unequal to more Number, building energy conservation is imperative, while being also the important component of sustainable economic development, again to building solid castoff It recycles and has not only reached energy-efficient purpose while being also beneficial to environmental protection, maintaining balance of nature, so, using building It is a kind of fine and effective means to build waste material and manufacture recycled aggregate for building to carry out resource reutilization.
Since recycled aggregate surface is wrapped in quite a number of hardening cement mortar, and recycled aggregate is in shattering process In produce a large amount of microscopic checks, cause the intensity of recycled aggregate low, water absorption rate is big, makes its intelligent use in some to intensity Place of less demanding, so, to solve the above problems, a kind of life making high strength recycled aggregate using construction waste of exploitation Production. art is necessary.
Invention content
The purpose of the invention is to overcome the deficiencies in the prior art, and provide a kind of multistage screening, arrange it is reasonable, high-strength Degree, the high performance production technology that high strength recycled aggregate is made using construction waste.
The object of the present invention is achieved like this:A kind of production work making high strength recycled aggregate using construction waste Skill includes the following steps:
A, it pre-processes:First construction waste is carried out spraying tide processing and epidemic prevention pre-processes;
B, it screens:A. sortation process is set by feeding transmission belt, by manually that volume is larger(Size is more than 15cm or more) The garbage sortings such as metal, rubber, plastics, wood go out;
B. the construction waste drying device through artificial primary election is dried, it is convenient followed by screening
C. the building waste through above-mentioned steps primary election is delivered to vibrating screen, the sieves such as the dust of vibrating screen by particle less than 5mm It selects;
D. the construction waste after step c screenings is conveyed into so far pneumatic separation device by conveyer, by light object from construction waste Separation;
E. construction waste is delivered to concentration equipment by conveyer again, removes the metal object in construction waste;
F. pass through proportion device and remove the sundries such as remaining sawdust, plastics;
C, it is crushed:A. level-one breaker will be delivered to by vibrating screener through above-mentioned steps garbled construction waste, through one Grade breaker crushes;
B. the construction waste after being crushed by level-one breaker is delivered to concentration equipment again, after being crushed by concentration equipment Bulk construction waste in the metal objects such as reinforcing bar remove;
C. the construction waste for removing metal object conveying two-stage crushing device is crushed again;
D. the construction waste being crushed by two-stage crushing device is delivered to screening plant, the Regenerated Bone of screening plant will be passed through Material is delivered to storage bin one, will not be delivered to three-level breaker by the regenerated coarse aggregate of screening plant;
E. storage bin two is delivered to after being crushed to above-mentioned regenerated coarse aggregate by three-level breaker;
D, chemical grout is strengthened;A. a concentration of 9% poly-vinyl alcohol solution is uniformly sprayed at recycled aggregate surface, makes aggregate table Face fully infiltrates, and stands 2h or more;
B. it uses cement aggregate technique to wrap up one layer of cement on recycled aggregate surface and forms cement shell.
The level-one breaker uses jaw crusher, two-stage crushing device broken using hammer stone crusher or reaction type Machine, three-level breaker use vertical impact crusher.
The screening plant uses screen frame oscillatory type motor-vibro screen.
The pneumatic separation device further includes dust-extraction unit.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows:
(1)Using multistage screening, targetedly by the eliminating impurities in construction waste, sundries in construction waste is effectively reduced Content, the obtained higher clean recycled aggregate of intensity;
(2)Pass through chemical grout infiltration and cement package, using the special property of the chemical substance of admixture, reparative regeneration aggregate Crack is filled with hole while enhancing the caking property at interface well, considerably improves the performance and product of recycled aggregate Matter.
Specific implementation mode
Below by embodiment, technical scheme of the present invention is described in further detail.
A kind of production technology being made high strength recycled aggregate using construction waste, is included the following steps:
A, it pre-processes:First construction waste is carried out spraying tide processing and epidemic prevention pre-processes;
B, it screens:A. sortation process is set by feeding transmission belt, by manually that volume is larger(Size is more than 15cm or more) The garbage sortings such as metal, rubber, plastics, wood go out;
B. the construction waste drying device through artificial primary election is dried, it is convenient followed by screening
C. the building waste through above-mentioned steps primary election is delivered to vibrating screen, the sieves such as the dust of vibrating screen by particle less than 5mm It selects;
D. the construction waste after step c screenings is conveyed into so far pneumatic separation device by conveyer, by light object from construction waste Separation;
E. construction waste is delivered to concentration equipment by conveyer again, removes the metal object in construction waste;
F. pass through proportion device and remove the sundries such as remaining sawdust, plastics;
C, it is crushed:A. level-one breaker will be delivered to by vibrating screener through above-mentioned steps garbled construction waste, through one Grade breaker crushes;
B. the construction waste after being crushed by level-one breaker is delivered to concentration equipment again, after being crushed by concentration equipment Bulk construction waste in the metal objects such as reinforcing bar remove;
C. the construction waste for removing metal object conveying two-stage crushing device is crushed again;
D. the construction waste being crushed by two-stage crushing device is delivered to screening plant, the Regenerated Bone of screening plant will be passed through Material is delivered to storage bin one, will not be delivered to three-level breaker by the regenerated coarse aggregate of screening plant;
E. storage bin two is delivered to after being crushed to above-mentioned regenerated coarse aggregate by three-level breaker;
D, chemical grout is strengthened;A. a concentration of 9% poly-vinyl alcohol solution is uniformly sprayed at recycled aggregate surface, makes aggregate table Face fully infiltrates, and stands 2h or more;B. it uses cement aggregate technique to wrap up one layer of cement on recycled aggregate surface and forms cement Shell.
The level-one breaker uses jaw crusher, two-stage crushing device broken using hammer stone crusher or reaction type Machine, three-level breaker use vertical impact crusher.
The screening plant uses screen frame oscillatory type motor-vibro screen.
The pneumatic separation device further includes dust-extraction unit.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, although With reference to above-described embodiment, invention is explained in detail, it should be understood by a person of ordinary skill in the art that still may be used It is modified or replaced equivalently with the specific implementation mode to the present invention, and is repaiied without departing from any of spirit and scope of the invention Change or equivalent replacement, is intended to be within the scope of the claims of the invention.

Claims (4)

1. a kind of production technology making high strength recycled aggregate using construction waste, it is characterised in that:Include the following steps:
A, it pre-processes:First construction waste is carried out spraying tide processing and epidemic prevention pre-processes;
B, it screens:A. sortation process is set by feeding transmission belt, by manually that volume is larger(Size is more than 15cm or more) The garbage sortings such as metal, rubber, plastics, wood go out;
B. the construction waste drying device through artificial primary election is dried, it is convenient followed by screening
C. the building waste through above-mentioned steps primary election is delivered to vibrating screen, the sieves such as the dust of vibrating screen by particle less than 5mm It selects;
D. the construction waste after step c screenings is conveyed into so far pneumatic separation device by conveyer, by light object from construction waste Separation;
E. construction waste is delivered to concentration equipment by conveyer again, removes the metal object in construction waste;
F. pass through proportion device and remove the sundries such as remaining sawdust, plastics;
C, it is crushed:A. level-one breaker will be delivered to by vibrating screener through above-mentioned steps garbled construction waste, through one Grade breaker crushes;
B. the construction waste after being crushed by level-one breaker is delivered to concentration equipment again, after being crushed by concentration equipment Bulk construction waste in the metal objects such as reinforcing bar remove;
C. the construction waste for removing metal object conveying two-stage crushing device is crushed again;
D. the construction waste being crushed by two-stage crushing device is delivered to screening plant, the Regenerated Bone of screening plant will be passed through Material is delivered to storage bin one, will not be delivered to three-level breaker by the regenerated coarse aggregate of screening plant;
E. storage bin two is delivered to after being crushed to above-mentioned regenerated coarse aggregate by three-level breaker;
D, chemical grout is strengthened;A. a concentration of 9% poly-vinyl alcohol solution is uniformly sprayed at recycled aggregate surface, makes aggregate table Face fully infiltrates, and stands 2h or more;B. it uses cement aggregate technique to wrap up one layer of cement on recycled aggregate surface and forms cement Shell.
2. a kind of production technology making high strength recycled aggregate using construction waste according to claim 1, feature It is:The level-one breaker uses jaw crusher, two-stage crushing device to use hammer stone crusher or impact breaker, Three-level breaker uses vertical impact crusher.
3. a kind of production technology making high strength recycled aggregate using construction waste according to claim 1, feature It is:The screening plant uses screen frame oscillatory type motor-vibro screen.
4. a kind of production technology making high strength recycled aggregate using construction waste according to claim 1, feature It is:The pneumatic separation device further includes dust-extraction unit.
CN201810349686.3A 2018-04-18 2018-04-18 A kind of production technology making high strength recycled aggregate using construction waste Pending CN108658489A (en)

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Application Number Priority Date Filing Date Title
CN201810349686.3A CN108658489A (en) 2018-04-18 2018-04-18 A kind of production technology making high strength recycled aggregate using construction waste

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Application Number Priority Date Filing Date Title
CN201810349686.3A CN108658489A (en) 2018-04-18 2018-04-18 A kind of production technology making high strength recycled aggregate using construction waste

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109987867A (en) * 2019-04-22 2019-07-09 江苏省水利防汛物资储备中心 A kind of recycled aggregate automation pretreatment unit
CN110357472A (en) * 2019-08-13 2019-10-22 广东新瑞龙生态建材有限公司 A kind of technique that building waste prepares regenerated coarse aggregate
CN110756325A (en) * 2019-12-10 2020-02-07 滁州市富邦新型建材有限公司 Preparation device and method for waste concrete coarse aggregate
CN111825362A (en) * 2020-07-28 2020-10-27 深圳港创建材股份有限公司 Modification method for reducing water absorption of recycled coarse aggregate
CN111825361A (en) * 2020-08-03 2020-10-27 中交一公局集团有限公司 Regenerated aggregate particle surface strengthening equipment and operation method thereof
CN112194398A (en) * 2020-10-12 2021-01-08 北京联绿技术集团有限公司 Preparation method of waste brick aggregate
CN112479616A (en) * 2020-11-23 2021-03-12 湖南大学 Recycled coarse aggregate wrapped with powder and preparation method thereof
CN114644475A (en) * 2022-03-23 2022-06-21 湖北建巨市政建设有限公司 Processing method of cement stabilized macadam regenerated aggregate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201648248U (en) * 2010-01-31 2010-11-24 山西远方路桥(集团)有限责任公司 Useable construction garbage
KR20120061263A (en) * 2010-12-03 2012-06-13 박근수 Remaking aggregate productive method and the system which use the lung concrete
CN103755188A (en) * 2014-01-08 2014-04-30 大连泓元环保建筑材料有限公司 Ecological treatment technology for construction waste
CN104671685A (en) * 2015-02-02 2015-06-03 深圳市华威环保建材有限公司 Production method of recycled aggregates of building wastes
CN104671684A (en) * 2013-12-30 2015-06-03 王明斌 Recovery processing method for construction garbage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201648248U (en) * 2010-01-31 2010-11-24 山西远方路桥(集团)有限责任公司 Useable construction garbage
KR20120061263A (en) * 2010-12-03 2012-06-13 박근수 Remaking aggregate productive method and the system which use the lung concrete
CN104671684A (en) * 2013-12-30 2015-06-03 王明斌 Recovery processing method for construction garbage
CN103755188A (en) * 2014-01-08 2014-04-30 大连泓元环保建筑材料有限公司 Ecological treatment technology for construction waste
CN104671685A (en) * 2015-02-02 2015-06-03 深圳市华威环保建材有限公司 Production method of recycled aggregates of building wastes

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109987867A (en) * 2019-04-22 2019-07-09 江苏省水利防汛物资储备中心 A kind of recycled aggregate automation pretreatment unit
CN110357472A (en) * 2019-08-13 2019-10-22 广东新瑞龙生态建材有限公司 A kind of technique that building waste prepares regenerated coarse aggregate
CN110357472B (en) * 2019-08-13 2022-01-11 广东新瑞龙生态建材有限公司 Process for preparing recycled coarse aggregate from construction waste
CN110756325A (en) * 2019-12-10 2020-02-07 滁州市富邦新型建材有限公司 Preparation device and method for waste concrete coarse aggregate
CN110756325B (en) * 2019-12-10 2021-07-16 滁州市富邦新型建材有限公司 Preparation method of waste concrete coarse aggregate
CN111825362A (en) * 2020-07-28 2020-10-27 深圳港创建材股份有限公司 Modification method for reducing water absorption of recycled coarse aggregate
CN111825361A (en) * 2020-08-03 2020-10-27 中交一公局集团有限公司 Regenerated aggregate particle surface strengthening equipment and operation method thereof
CN111825361B (en) * 2020-08-03 2022-03-11 中交一公局集团有限公司 Regenerated aggregate particle surface strengthening equipment and operation method thereof
CN112194398A (en) * 2020-10-12 2021-01-08 北京联绿技术集团有限公司 Preparation method of waste brick aggregate
CN112479616A (en) * 2020-11-23 2021-03-12 湖南大学 Recycled coarse aggregate wrapped with powder and preparation method thereof
CN114644475A (en) * 2022-03-23 2022-06-21 湖北建巨市政建设有限公司 Processing method of cement stabilized macadam regenerated aggregate

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Application publication date: 20181016

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