CN108569854A - The application of building waste treatment process and gained recycled fine aggregate and reclaimed sand - Google Patents

The application of building waste treatment process and gained recycled fine aggregate and reclaimed sand Download PDF

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Publication number
CN108569854A
CN108569854A CN201810276523.7A CN201810276523A CN108569854A CN 108569854 A CN108569854 A CN 108569854A CN 201810276523 A CN201810276523 A CN 201810276523A CN 108569854 A CN108569854 A CN 108569854A
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level
grain size
building waste
treatment process
gained
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CN201810276523.7A
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沈小葵
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Guangdong Yixing Food Co Ltd
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Guangdong Yixing Food Co Ltd
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Priority to CN201810276523.7A priority Critical patent/CN108569854A/en
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    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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 the application of building waste treatment process and gained recycled fine aggregate and reclaimed sand, the building waste treatment process includes the following steps:Building waste is preprocessed, drum screen obtains useless solid material and waste residue soil, it is different with the component of waste residue soil according to useless solid material, respectively the reclaimed sand of recycled fine aggregate and grain size no more than 0.5mm that grain size is 1 ~ 5mm is obtained through different processing procedures, through the reworked material obtained by the treatment process due to polishing and Shape correction, surface attachments are few, particle diameter distribution is uniform, so the better performances such as water absorption rate and intensity.

Description

The application of building waste treatment process and gained recycled fine aggregate and reclaimed sand
Technical field
The invention belongs to building waste recovery processing and recycle field, and in particular to building waste treatment process and gained The application of recycled fine aggregate and reclaimed sand.
Background technology
Building waste becomes as one of maximum urban waste of discharge rate and solves environmental pollution, reduces pollutant row The focus put rate, improve resource utilization.With the process of Chinese Urbanization construction, building waste is turned waste into wealth, and will belong to rubbish The emphasis development project that rubbish recycles, recycling and cycling and reutilization can not only environmental protection, and according to scientific and effective Measure by its minimizing and regeneration, a large amount of construction fund and resource can also be saved.
Building waste can substantially be divided into useless solid material and waste residue soil, have raw material supply according to constituent difference Abundance, product do not have toxicity, go into operation the features such as fast.But in actual life, building waste is not recycled adequately and profit With each big and medium-sized cities in the whole nation are still that most building wastes are transported to city suburbs stacking processing, and not only land occupation provides Source reduces soil quality, also generates pollution to periphery surface water and groundwater.The more flourishing city in part begins to focus on building rubbish Building waste has been carried out unified recovery processing and recycling by the baneful influence that rubbish is brought.But not according to building waste Component is different and uses different processing methods, and has only carried out simple process, obtains the wider recycled aggregate of particle size range, locates Obtained recycled aggregate is managed due to by cement package, the rough surface on surface, it being made to be less than day in the performances such as intensity, water absorption rate Right aggregate, professional standard is often not achieved in performance when using it for preparing new construction material, and building waste utilization rate is low.
Invention content
The object of the present invention is to provide a kind of building waste treatment process, the treatment process is according to different groups of building waste Different processing methods is respectively adopted, processing obtains the uniform regenerated coarse aggregate of particle diameter distribution, recycled fine aggregate and reclaimed sand, And the regeneration feed surface wrappage that processing obtains is few, can be used further to prepare high performance construction material.
The invention also discloses the applications of recycled fine aggregate and reclaimed sand that the treatment process is prepared.
To achieve the above object, the technical solution adopted by the present invention is:
A kind of building waste treatment process is used to the mixed material in building waste carrying out separating treatment and obtains regeneration carefully Aggregate and reclaimed sand, include the following steps:
(1)Building waste is pre-processed, it is broken to obtain grain size 150mm mixed materials below;
(2)Pretreated mixed material is subjected to preliminary screening, isolated useless solid material and waste residue soil with drum screen, it will Useless solid material is sorted through artificial, removes fiber, plastics, broken glass, electric wire, reinforcing bar and timber sundries;
(3)By step(2)It is 30mm's or more that the useless solid material of gained removal of impurities obtains grain size through broken, magnetic separation, screening successively Level-one material and grain size are 30mm two level materials below;
(4)The level-one material of gained is repeated into step(3), it is 30mm two level objects below until the material of gained is grain size Material;Two level material is crushed again, removes the wrappage on surface, is sieved again after ball mill grinding process, obtain grain size be 5 ~ The regenerated coarse aggregate of 30mm, the recycled fine aggregate that grain size is 1 ~ 5mm and grain size are 1mm three-level materials below;
(5)By step(2)The waste residue soil of gained is detached through magnetic separation, organic matter successively, removes steel and organic matter, then through pond of strike-ofing Processing, level Four dry materials are made grain size with sand making machine and are no more than by the level Four material and mud of isolated 0.3 ~ 3mm The reclaimed sand of 0.5mm;
(6)By step(4)The three-level material of gained is through step(5)The isolated level Four material in the pond of strike-ofing and mud, will Level Four material presses step(5)Processing obtains reclaimed sand;
(7)By step(5)And step(6)The mud of gained filters out sewage with press filtration separator and is made silt, then silt is dry, Screening, obtains reclaimed sand.
Building waste pre-processes:Building waste is screened, respectively obtains grain size more than 150mm and grain size less than 150mm's Grain size is more than the mixture coarse crushing of 150mm, repeated the above process by mixture, and it is 150mm or less mixed materials to obtain grain size.
Step(2)Doped with fiber, plastics, cullet, electric wire, metal and timber etc. in isolated useless solid material The larger impurity of needles of various sizes can be detached these impurity by manually sorting, and recovery processing of classifying.
Through step(2)There is part reinforcing bar to remain in the concrete of bulk in the useless solid material of removal of impurities, it can through being crushed Reinforcing bar and concrete are detached, then remaining reinforcing bar is detached and recycled through magnetic separation.
Step(4)The two level surface of material attachment cement mortar of gained, corner angle are more, surface is rougher, and ingredient is relative to day Right aggregate is more complex, and water absorption rate, intensity etc. are below natural aggregate, so need to be again crushed to two level material, removes two level material The attachment on surface, then the two level material for removing surface attachments is put into ball mill, under the running at high speed of ball mill, object Material and phase mutual friction, collision between material and mill ball, are strengthened shaping, form hardly staining metal, regular shape, any surface finish Two level material.
Step(2)Doped with the smaller metal fillings of size, Soft flocks, fiber, plastics bits, glass in isolated waste residue soil The impurity such as glass bits, sawdust detach through magnetic separation and organic matter, can remove these impurity.Substance in the waste residue soil of removal of impurities is basic The only smaller substance of the particles such as remaining fine sand, handstone, is sieved according to devices such as sieves, is easy to block sieve pore, shadow Ring the duration of work.So the waste residue soil of removal of impurities can be put into pond of strike-ofing, the isolated level Four material based on sandstone and Mud, then by level Four dry materials, polished with sand making machine and reclaimed sand is made.
Also remain a small amount of sandstone in mud behind pond of strike-ofing, since the sand grains amount in mud is few, it is difficult to by strike-ofing Pond is separated, so, mud is needed to select remaining sand grains by rolling or vibrating screen after the water removal of press filtration separator, drying Go out, obtained sand grains obtains reclaimed sand by sand making machine.
Further, step(3)It is described broken using jaw crusher or gyratory crusher.Jaw crusher and rotation It is boulder crusher to return crusher, and wherein gyratory crusher is one kind of gyratory crusher, since its shattering process is along annulus It is carried out continuously in shape crusher chamber, therefore productivity is higher, power consumption is low, stable working.
Further, step(4)It is described broken using impact breaker.Impact breaker is used in material Broken and fine crushing, material falls directly into high-speed rotating turntable by machine upper portion;Under the action of high speed centrifugation power, between material mutually Mutually strike, friction remove the wrappage of surface of material to realize the polishing to material.
Further, step(1)、(2)、(3)、(4)、(7)Broken and screening process received by dust arrester installation Dirt processing.Material is broken to be collected with the airborne dust generated in screening process by dust arrester installation, can not only reduce dust pollution, but also can incite somebody to action The airborne dust of collection is used as inorganic powder material.
Further, the step(7)The sewage filtered out is recycled to pond of strike-ofing by filtering, purified treatment.Step(7) The sewage of gained is nontoxic, only contains partial impurities and clay, so passing through filtering and simple purification process, that is, recyclable profit again With.
Further, the recycled fine aggregate and reclaimed sand that the building waste treatment process is prepared are preparing seepage brick In application.Recycled fine aggregate and grain size that the grain size that building waste is handled is 1 ~ 5mm are no more than the reclaimed sand of 0.5mm, Have many advantages, such as hardly staining metal, uniform particle sizes, any surface finish, be used equally for preparing seepage brick, realize building waste regeneration and It recycles.
Further, the mass percent of the recycled fine aggregate and reclaimed sand in seepage brick be respectively 30 ~ 50%, 25 ~ 35%。
A kind of environmental protection seepage brick, including infiltration base and infiltration surface layer, the thickness of the infiltration base is 40 ~ 60mm, is oozed The thickness of surface layer of water is 10 ~ 15mm, and it includes such as that infiltration base and infiltration surface layer, which use the close compression moulding of brick machine, infiltration base, The component of lower mass fraction:40 ~ 60 parts of recycled fine aggregate, 20 ~ 30 parts of reclaimed sand, 3 ~ 8 parts of flyash, 10 ~ 20 parts of cement, buck 0.3 ~ 0.8 part of agent, 10 ~ 15 parts of water;Infiltration surface layer includes the component of following mass fraction:65 ~ 80 parts of reclaimed sand, cement 15 ~ 30 Part, 5 ~ 10 parts of flyash, 0.5 ~ 3 part of coloring earth, 0.3 ~ 1 part of impregnating agent, 0.5 ~ 1 part of water-reducing agent, 10 ~ 20 parts of water.
Compared with prior art, the advantageous effect of technical solution of the present invention is:
Building waste treatment process of the present invention is isolated with concrete, stone, brick etc. by pretreated mixed material Based on useless solid material and the waste residue soil based on sand grains, clay, and according to the different component of useless solid material and waste residue soil Different processing methods is respectively adopted and obtains recycled fine aggregate and reclaimed sand, and gained recycled fine aggregate and reclaimed sand particle diameter distribution Uniformly, surface wrappage is few, is used equally for preparing environmentally friendly seepage brick, and the intensity of the seepage brick prepared is high, good water permeability.
Description of the drawings
Fig. 1 is the process flow chart of building waste treatment process of the present invention.
Specific implementation mode
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention is not It is limited only to the following examples.
Embodiment 1
A kind of building waste treatment process as shown in Figure 1, be used for by the mixed material in building waste carry out separating treatment and Regeneration includes the following steps:
(1)Building waste is pre-processed, it is broken to obtain grain size 150mm mixed materials below;
(2)Pretreated mixed material is subjected to preliminary screening, isolated useless solid material and waste residue soil with drum screen, it will Useless solid material is sorted through artificial, removes fiber, plastics, broken glass, electric wire, reinforcing bar and timber sundries;
(3)By step(2)It is 30mm's or more that the useless solid material of gained removal of impurities obtains grain size through broken, magnetic separation, screening successively Level-one material and grain size are 30mm two level materials below;
(4)The level-one material of gained is repeated into step(3), it is 30mm two level objects below until the material of gained is grain size Material;Two level material is crushed again, removes the wrappage on surface, is sieved again after ball mill grinding process, obtain grain size be 5 ~ The regenerated coarse aggregate of 30mm, the recycled fine aggregate that grain size is 1 ~ 5mm and grain size are 1mm three-level materials below;
(5)By step(2)The waste residue soil of gained is detached through magnetic separation, organic matter successively, removes steel and organic matter, then through pond of strike-ofing Processing, level Four dry materials are made grain size with sand making machine and are no more than by the level Four material and mud of isolated 0.3 ~ 3mm The reclaimed sand of 0.5mm;
(6)By step(4)The three-level material of gained is through step(5)The isolated level Four material in the pond of strike-ofing and mud, will Level Four material presses step(5)Processing obtains reclaimed sand;
(7)By step(5)And step(6)The mud of gained filters out sewage with press filtration separator and is made silt, then silt is dry, Screening, obtains reclaimed sand.
Through the above scheme, specific implementation process is:(1)Building waste is screened, grain size is respectively obtained and is more than 150mm It is less than the mixture of 150mm with grain size, grain size is more than to the mixture coarse crushing of 150mm, repeats the above process, obtains pretreated Mixed material;Pretreatment can make the grain size of mixed material be less than 150mm, avoid mixed material because oversized, and cannot be introduced into Drum screen is screened;
(2)Drum screen is added in pretreated mixed material, the material that size is less than drum screen sieve pore is fallen into below drum screen, shape At the waste residue soil based on sand grains, clay;The material that size is more than drum screen sieve pore stays in above drum screen, is formed with coagulation Useless solid material based on soil, stone, brick etc.;Doped with fiber, plastics, broken glass in useless solid material through rolling sieve separation These impurity can be detached by manually sorting, and classified back by the larger impurity of the needles of various sizes such as glass, electric wire, metal and timber Receipts processing;
(3)Also have part reinforcing bar to remain in the concrete of bulk in the useless solid material of removal of impurities, through it is broken can be by reinforcing bar and mixed Solidifying soil separation, then remaining reinforcing bar is detached and recycled through magnetic separation, then sieve the useless solid material of magnetic separation to obtain grain size be The level-one material and grain size of 30mm or more is 30mm two level materials below;
Specifically, step(3)It is described broken using jaw crusher or gyratory crusher.Jaw crusher and cycle are broken Broken machine is boulder crusher, and wherein gyratory crusher is one kind of gyratory crusher, since its shattering process is broken along circular ring shape Broken intracavitary is carried out continuously, therefore productivity is higher, power consumption is low, stable working.
(4)Level-one material is repeated into step(3), it is 30mm two level materials below until the material of gained is grain size; Two level material is crushed again, removes the wrappage on surface, is sieved again after ball mill grinding process, respectively obtain hardly staining metal, The uniform grain size of regular shape, particle diameter distribution is the regenerated coarse aggregate of 5 ~ 30mm, recycled fine aggregate and grain size that grain size is 1 ~ 5mm For 1mm three-level materials below;
Specifically, step(4)It is described broken using impact breaker.Impact breaker be used for material in it is broken and Fine crushing, material falls directly into high-speed rotating turntable by machine upper portion;Under the action of high speed centrifugation power, beaten mutually between material It hits, rub, to realize the polishing to material, remove the wrappage of surface of material.It is highly preferred that step(4)Described be crushed is adopted With PF three chamber impact breakers of strength.
(5)By step(2)The smaller metal fillings of size in the waste residue soil of gained, Soft flocks, fiber, plastics bits, glass The impurity such as bits, sawdust are put into pond of strike-ofing after magnetic separation and organic matter separation, and the isolated grain size based on sandstone is 0.3 ~ 3mm level Four material and mud, then by level Four dry materials, the regeneration that grain size is no more than 0.5mm is made in the polishing through sand making machine Sand;The reclaimed sand is due to the polishing Jing Guo sand making machine, and surface attachments are few, particle diameter distribution is uniform;
(6)By step(4)The three-level material of gained is through step(5)The isolated level Four material in the pond of strike-ofing and mud, will Level Four material presses step(5)Processing obtains reclaimed sand;
(7)Also remain a small amount of sandstone in mud behind pond of strike-ofing, since the sand grains amount in mud is few, it is difficult to pass through pond of strike-ofing It separates, so, mud is removed water through press filtration separator, after drying, then selected remaining sand grains by rolling or vibrating screen Go out, and obtained sand grains is obtained into reclaimed sand by sand making machine, the soil sieved can be directly used for preparing ceramics, common brick Deng;
Specifically, the step(7)The sewage filtered out is recycled to pond of strike-ofing by filtering, purified treatment.Step(7)Gained Sewage it is nontoxic, only contain partial impurities and clay, so passing through filtering and simple purification process, that is, recyclable, realize water money Source recycles.
In the present embodiment, step(1)、(2)、(3)、(4)、(7)Broken and screening process carried out by dust arrester installation It gathers dust processing.Both the airborne dust of collection inorganic powder material can be used as, and can avoid airborne dust by the processing of gathering dust of dust arrester installation The secondary pollution of formation.
Building waste obtains grain size through the treatment process and is no more than 0.5mm again for the recycled fine aggregate and grain size of 1 ~ 5mm Greensand.
Embodiment 2
A kind of environmental protection seepage brick, it is 0.5mm or less that prepared by Example 1, which takes the recycled fine aggregate that grain size is 1 ~ 5mm and grain size, Reclaimed sand be main component, it is used infiltration base each mass component be:40 parts of recycled fine aggregate, 30 parts of reclaimed sand, fine coal 5 parts of ash, 15 parts of cement, 0.5 part of water-reducing agent, 13 parts of water;Infiltration surface layer each mass component be:70 parts of reclaimed sand, 20 parts of cement, 7 parts of flyash, 2 parts of coloring earth, 0.5 part of impregnating agent, 0.8 part of water-reducing agent, 17 parts of water.
Its preparation process is as follows:
(1)Prepare gelling base material and wetting base material:Cement and water-reducing agent are stirred evenly, flyash is added to mix, glue is made Solidifying base's material;Recycled fine aggregate and reclaimed sand are stirred evenly, 3 ~ 5 parts of water are added, is mixed to prepare wetting base material;
(2)Prepare coagulation base material:By step(1)Gelling base material and the material mixing of wetting base, stir 10 ~ 20min, add 7 ~ 10 parts of water, are stirred for 10 ~ 30min, obtain coagulation base material, spare;
(3)Prepare gelling surface layer material and wetting surface layer material:Cement and water-reducing agent are stirred evenly, flyash is added to mix, obtains glue Solidifying surface layer material;Coloring earth and 5 ~ 10 parts of water are added in reclaimed sand and are added, wetting surface layer material is made in mixing;
(4)Prepare coagulation surface layer material:By step(3)Gelling surface layer material and the material mixing of wetting surface layer, add impregnating agent, stirring 10 ~ 20min adds 5 ~ 10 parts of water, stirs evenly, and coagulation surface layer material is made, spare;
(5)Compression molding:By step(2)Coagulation base material and step(4)Coagulation surface layer material sequentially add in brick-making mould, After layer-by-layer distribution, pressurize 5 ~ 10min under the pressure of 10 ~ 20MPa, and adobe is made;
(6)By step(5)Adobe humidity be 95 ~ 99%, temperature be 50 ~ 80 DEG C under conditions of steam-cured 10 ~ for 24 hours, then wet Environmentally friendly seepage brick is made to be conserved 1 ~ 2 day under 60~70% normal temperature condition in degree.
According to People's Republic of China (PRC) building material industry standard JC/T 945-2005, to the environmentally friendly seepage brick of 2 gained of embodiment The test of compression strength, water-retaining property and coefficient of permeability is carried out respectively.The compression strength of environmentally friendly seepage brick is 34.6Mpa, permeable system Number is 1.5 × 10-2Cm/s, water-retaining property 1.2g/cm2
The above embodiment of the present invention is only intended to clearly illustrate examples made by the present invention, and is not to the present invention The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.All essences in the present invention All any modification, equivalent and improvement etc., should be included in the protection model of the claims in the present invention made by within refreshing and principle Within enclosing.

Claims (7)

1. a kind of building waste treatment process is used to the mixed material in building waste carrying out separating treatment and be regenerated Fine aggregate and reclaimed sand, which is characterized in that include the following steps:
(1)Building waste is pre-processed, it is broken to obtain grain size 150mm mixed materials below;
(2)Pretreated mixed material is subjected to preliminary screening, isolated useless solid material and waste residue soil with drum screen, it will Useless solid material is sorted through artificial, removes fiber, plastics, broken glass, electric wire, reinforcing bar and timber sundries;
(3)By step(2)It is 30mm's or more that the useless solid material of gained removal of impurities obtains grain size through broken, magnetic separation, screening successively Level-one material and grain size are 30mm two level materials below;
(4)The level-one material of gained is repeated into step(3), it is 30mm two level objects below until the material of gained is grain size Material;Two level material is crushed again, removes the wrappage on surface, is sieved again after ball mill grinding process, obtain grain size be 5 ~ The regenerated coarse aggregate of 30mm, the recycled fine aggregate that grain size is 1 ~ 5mm and grain size are 1mm three-level materials below;
(5)By step(2)The waste residue soil of gained is detached through magnetic separation, organic matter successively, removes steel and organic matter, then through pond of strike-ofing Processing, level Four dry materials are made grain size with sand making machine and are no more than by the level Four material and mud of isolated 0.3 ~ 3mm The reclaimed sand of 0.5mm;
(6)By step(4)The three-level material of gained is through step(5)The isolated level Four material in the pond of strike-ofing and mud, will Level Four material presses step(5)Processing obtains reclaimed sand;
(7)By step(5)And step(6)The mud of gained filters out sewage with press filtration separator and is made silt, then silt is dry, Screening, obtains reclaimed sand.
2. building waste treatment process according to claim 1, which is characterized in that step(3)It is described it is broken using Jaw crusher or gyratory crusher.
3. building waste treatment process according to claim 1, which is characterized in that step(4)It is described it is broken using Impact breaker.
4. building waste treatment process according to claim 1, which is characterized in that step(1)、(2)、(3)、(4)、(7) Broken and screening process processing of gathering dust is carried out by dust arrester installation.
5. building waste treatment process according to claim 1, which is characterized in that the step(7)The sewage filtered out is logical Filtering, purified treatment, are recycled to pond of strike-ofing.
6. building waste treatment process is prepared described in any one of claim 1-5 claims recycled fine aggregate and regeneration Application of the sand in preparing seepage brick.
7. applying according to claim 6, which is characterized in that the quality of the recycled fine aggregate and reclaimed sand in seepage brick Percentage is respectively 30 ~ 50%, 25 ~ 35%.
CN201810276523.7A 2018-03-30 2018-03-30 The application of building waste treatment process and gained recycled fine aggregate and reclaimed sand Pending CN108569854A (en)

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CN110218034A (en) * 2019-06-20 2019-09-10 贵州工程应用技术学院 A kind of method of building waste recovery processing
CN111018437A (en) * 2019-12-10 2020-04-17 郑州大学 Ultrahigh-toughness waste brick-concrete regeneration mixture and preparation method and application thereof
WO2020173116A1 (en) * 2019-02-25 2020-09-03 华南理工大学 Cement-sandy soil slurry prepared by replacing natural sand with engineering muck, and preparation method and application thereof
CN113134502A (en) * 2020-01-19 2021-07-20 西安佳世洁环保科技有限公司 Harmless treatment method for decomposed materials on removed clean surface

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