CN106277883B - A kind of half dry-washing type construction refuse regenerated aggregate clean method of environment-friendly type foam - Google Patents
A kind of half dry-washing type construction refuse regenerated aggregate clean method of environment-friendly type foam Download PDFInfo
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- CN106277883B CN106277883B CN201610652084.6A CN201610652084A CN106277883B CN 106277883 B CN106277883 B CN 106277883B CN 201610652084 A CN201610652084 A CN 201610652084A CN 106277883 B CN106277883 B CN 106277883B
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- 239000006260 foam Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000005406 washing Methods 0.000 title claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 69
- 239000002699 waste material Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003599 detergent Substances 0.000 claims description 46
- 230000008929 regeneration Effects 0.000 claims description 20
- 238000011069 regeneration method Methods 0.000 claims description 20
- 238000010926 purge Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 18
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000004088 foaming agent Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 5
- 238000001802 infusion Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- 239000006210 lotion Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920002050 silicone resin Polymers 0.000 claims description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 3
- 235000011152 sodium sulphate Nutrition 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- RZYKUPXRYIOEME-UHFFFAOYSA-N CCCCCCCCCCCC[S] Chemical compound CCCCCCCCCCCC[S] RZYKUPXRYIOEME-UHFFFAOYSA-N 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 239000010813 municipal solid waste Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 210000000988 bone and bone Anatomy 0.000 description 5
- 239000004568 cement Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229920005646 polycarboxylate Polymers 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000008107 benzenesulfonic acids Chemical class 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use 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
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
- C04B18/167—Recycled materials, i.e. waste materials reused in the production of the same materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use 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
- C04B20/02—Treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use 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
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
Abstract
The invention discloses a kind of clean methods of half dry-washing type construction refuse regenerated aggregate of environment-friendly type foam, include the following steps：Building waste is crushed first, is sorted, recycled aggregate is obtained；Then recycled aggregate is transmitted 2 in the cleaning unit of filled and process, foam is wrapped up in attached during being dropped by recycled aggregate, it is rubbed mutually between aggregate when then being accumulated by impregnating and being transported by conveyer belt in the foam, so that greasy dirt is adsorbed with lipophilic foam, the high-efficiency cleaning of recycled aggregate is realized.The present invention has many advantages, such as that water consumption is few, cleaning efficiency is high, simple for process, at low cost, is suitble to promote and apply.
Description
Technical field
The invention belongs to solid waste regenerations to utilize field, and in particular to a kind of half dry-washing type of environment-friendly type foam building rubbish
Rubbish recycled aggregate clean method.
Background technology
With the acceleration of China's expanding economy and urbanization process, the development of a large amount of newly built constructions, old city are planned again to be changed
Make, road is newly repaiied or is relocated, including the dismounting reconstruction of a large amount of concrete structures and building, produced during this is each
A large amount of building waste.According to statistics, building waste quantity in China's alreadys exceed the 1/3 of municipal refuse sum, for building waste,
Traditional method of disposal is that landfill is accumulated in transport to suburb, and small part is filled for pit-hole backfill, low-lying land.These disposition sides
Formula will occupy the upper underground space in large quantities, and loose building waste packed structures, which are worked together, also results in the security risk of avalanche.Together
When, building waste is in totally alkalescent, also damaging to the soil property of Soil Surrounding while not only only taking up a large amount of soils
It influences；Water body and air can be entered under the operation of nature such as leaching, the solarization of the organic matter contained in building waste, it is dirty to form water body
Dye and atmosphere pollution.Therefore, how these building wastes of recycling are as a problem urgently to be resolved hurrily at present.
About 90% is made of broken concrete, brick, tile fragment, sandstone, clod in building waste, these components are all can
It is higher with the building materials of recycling, especially wherein most component robustness, by certain disposition can prepare recycled aggregate,
The construction materials such as regeneration activity micro mist, regeneration haydite, regeneration pottery sand recycle.Flow is about：It is clear to collect --- sorting ---
It is clean that --- broken, grinding or sintering --- screening --- recycle.With the pay attention to day by day to environmental protection and circular economy, rubbish is built
The application of rubbish regeneration is more and more, and the techniques such as collection, sorting, crushing and grinding or the sintering of building waste, screening are increasingly complete
It is kind, while also having largely about pretreatment modes such as recycled aggregate, regenerative micro powder activity excitation, interface enhancings, this to build
The use quality of garbage regeneration material greatly improves.But there are still some shortcomingss in the process for profit again for building waste.
The quality of the product of construction refuse regenerated construction material is seriously limited by the clean level of building waste.Build rubbish
Rubbish contains the organic matters such as greasy dirt more.These contain recycled aggregate interfacial adhesion ability made of the construction waste crushing of residual greasy dirt
It is weaker, it can not be well attached cementing with the inorganic coagulation materials such as cement；The building waste for containing residual greasy dirt simultaneously is being prepared again
It is relatively difficult to levigate when liveliness proof micro mist, increases the difficulty and cost of grinding, while increasing the abrasion of milling equipment；It is firing
The volatilization of inorganic matter is also easy to produce sucking security risk and healthy hidden danger while being easy pollution during regeneration haydite and regeneration pottery sand
Air.Therefore, effective cleaning technique is had to pass through when construction refuse regenerated.What application was more at present is by rinsing or impregnating
To clean building waste.This not only consumes a large amount of water resource, while the wastewater flow rate after washing is larger, while being difficult to concentrate
Processing is easy contaminated soil and water body after discharge.
Invention content
The purpose of the present invention is in view of the above shortcomings of the prior art, and provide a kind of half dry-washing type of environment-friendly type foam building
Garbage regeneration aggregate clean method, this method have many advantages, such as that water consumption is few, cleaning efficiency is high, simple for process and at low cost, tool
There are important economy and environmental benefit.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of half dry-washing type construction refuse regenerated aggregate clean method of environment-friendly type foam, it includes the following steps：
1) building waste is crushed, sorted, obtain recycled aggregate；
2) preparation purge tank：Purge tank includes the round can of a upper end opening sealed bottom, and infusion port is arranged in round can bottom,
It is connected to foam maker, is foamed using detergent in the foam maker, and gained foam is passed through infusion port
In filling to round can；
3) by recycled aggregate obtained by step 1) by conveyer belt by being dropped in purge tank at the top of purge tank, wherein conveyer belt and
Purge tank forms a cleaning unit, and the recycled aggregate transmitted in previous cleaning unit unloads the biography for dropping down onto next cleaning unit
Send with bottom end (in previous cleaning unit in the top of conveyer belt and next cleaning unit on the position of the bottom end of conveyer belt,
Lower correspondence), and unloaded and dropped down onto in next one cleaning unit by the transmission of next conveyer belt；It is regenerated in the last one cleaning unit
Aggregate is sent to by recycling conveyer belt in aggregate bin, recycles to obtain cleaning recycled aggregate.
In said program, the grain size of the recycled aggregate is not less than 3mm.
In said program, setting 2 or more cleaning unit in step 3).
In said program, the foam maker use pressure-air foam maker, pressure-air pressure be 0.3~
0.5MPa。
In said program, the density of the foam maker foaming gained foam is 60~120kg/m3。
In said program, in step 3) in each cleaning unit of control, recycled aggregate is from foam is entered in round can to transmission
The time gone out in foam is not less than 5min.
Preferably, foam-filled height control drops the Regenerated Bone material heap formed after recycled aggregate most in round can in round can
3 times or more of height drop the Regenerated Bone material heap maximum height formed after recycled aggregate and are no more than round can height in round can
1/4。
In said program, the transmission speed of conveyer belt is consistent in each cleaning unit.
In said program, mass percent shared by each component is in the detergent：Foaming agent 2~3%, stabilizer 0.3
~0.5%, detergent 1~2%, remaining is water.
In said program, the foaming agent presses 55 by fat alcohol polyethenoxy ether sodium sulfate and lauryl sodium sulfate:45~
60:40 mass ratio mixes.
In said program, the stabilizer is the modified silicone resin polyethers lotion of commercial available quality a concentration of 55%；It is described to go
Dirty agent is the mixing of one or both of neopelex, dodecyl sodium sulfate.
In said program, the foam maker is connect with detergent container, and the detergent in detergent container is transmitted
Into foam maker.
In said program, round can bottom also sets up leakage fluid dram, is connect with three-way flow divider valve, two of which shunting outlet difference
It is connect with waste liquid discharge line and detergent container.When control leakage fluid dram is connected to detergent container, recoverable foam is clear
Gained waste liquid after recycled aggregate ruptures is washed, is foamed again.
This law invention principle be：
When the construction refuse regenerated aggregate containing organic pollutions such as greasy dirts is transferred into above round can and is dropping process
It is middle by detergent foam gained foam (water-air foam) wrap up in it is attached, then by impregnating and being transported by conveyer belt in the foam
Mutual kneading action when accumulation between aggregate so that greasy dirt is adsorbed with lipophilic foam, and then from building waste
Recycled aggregate surface falls off, and as the liquid (waste liquid) that bubble collapse is formed is discharged from the leakage fluid dram of round can bottom by waste liquid
Pipeline, which is discharged or is recycled in detergent container, re-starts foaming.
Using detergent of the present invention foam gained foam stability it is very good, when foam when encountering greasy dirt foam
It can rupture to form detergent solution and oil stain, and foam meeting long period (about 1.5~2.5h) not contacted with greasy dirt is steady
Fixed presence with greasy dirt until contact；When less containing greasy dirt in construction refuse regenerated aggregate, foam can be steady with the long period
Fixed presence, liquid that leakage fluid dram is collected are recyclable to being re-used to foam in detergent container；When building waste contains greasy dirt
When more, foam height decline can be accelerated, and the liquid that leakage fluid dram is collected can not be used for foaming well again, directly be arranged by waste liquid
Go out pipeline discharge.Therefore by observing foam height decrease speed, it can refer to and judge whether greasy dirt cleans up and need to clean
The number of unit, while may determine that waste liquid discharge line discharge liquor is withdrawn or recirculated to detergent container.
Beneficial effects of the present invention are：
1) water resource is saved：The mode that the present invention cleans greasy dirt in construction refuse regenerated aggregate is a kind of half dry-cleaning mode,
The foam density that the detergent foaming of selection generates is very small, is cleaned using same volume foam and directly uses water-washing method pair
Than about 90~95% water consumption can be saved.
2) cleaning efficiency is high：Building waste is only transported and was accumulated by the immersion in the foam containing detergent and conveyer belt
Mutual rubbing in journey, you can obtain clean building waste, cleaning efficiency is very high.
3) Processes and apparatus is simple, of low cost：Only need conveyer belt, the round can of upper end opening lower end closed, foam hair
Raw device, detergent container, waste liquid discharge line just constitute a cleaning unit.Wherein detergent can be when contacting certainly with greasy dirt
Dynamic rupture, cleaning greasy dirt, and be stabilized for a long time in no greasy dirt, there is " tracking " greasy dirt cleaning ability；Detergent exists
Do not occur Ke Xunhuanliyong when cleaning function.This so that equipment cost and material cost are all very cheap.
4) easy to operate, easily controllable：By observing and adjusting the height of foam, it can refer to that judge whether greasy dirt cleans dry
Net and adjusting needs the number of cleaning unit, while may determine that waste liquid discharge line discharge liquor is withdrawn or recirculated to detergent appearance
Device.Operation very simply and readily automation control.
5) environmentally friendly：While largely saving water resource, detergent fully recycles, and waste liquid is discharged and is easy to concentrate receipts
Collection disposition.
6) construction refuse regenerated performance enhancement：The detergent that the present invention uses has very strong surface-active, absorption oil
Polar substances surface can be still adsorbed on after dirt；Foam containing detergent, the detergent solution after absorption greasy dirt after the cleaning
It has a small amount of building waste that remains in and cleans recycled aggregate surface, when being applied to concrete mixing, remaining detergent pair
The particle of cement cementitious material has peptizaiton, can reduce the dosage of water-reducing agent；Meanwhile adsorbing the detergent meeting after greasy dirt
It is enriched in concrete surface, polar group is attracted by concrete, increases the impermeability of concrete.
Description of the drawings
Fig. 1 is the flow diagram of clean method described in the embodiment of the present invention 2.
Wherein, 1 is recycled aggregate, and 2 be conveyer belt, and 3 be round can, and 4 be foam maker, and 5 be cleaner container, and 6 be bubble
Foam, 7 be three-way flow divider valve, and 8 be waste liquid discharge line, and 9 be recycling conveyer belt, and 10 be aggregate bin.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be noted that attached drawing only for property illustrate, not press stringent ratio drafting, and
And convenient and progress partial enlargement, diminution promising may wherein be described, may also have for conventional partial structure certain scarce
It saves；The direction referred to using word "front", "rear", "left", "right", "upper", "lower" in attached drawing, word are described below
"inner", "outside" refer respectively to the direction towards or away from geometric center of specific component.
In following embodiment, in the detergent used mass percent shared by each component for：Foaming agent 2.5%, stabilizer
0.4%, detergent 1.5%, water 95.6%；Wherein foaming agent is pressed by fat alcohol polyethenoxy ether sodium sulfate and lauryl sodium sulfate
55:45 mass ratio mixes, and it is the modified silicone resin polyethers lotion that mass concentration is 55%, detergent ten to state stabilizer
Dialkyl benzene sulfonic acids sodium.
In following embodiment and comparative example, each cleaning unit is made of a purge tank and a conveyer belt.
Comparative example 1
It will not be clean construction waste crushing, grain size 5-25mm recycled aggregates and grain size 0-5mm reclaimed sands is made in screening；
And it is applied to prepare concrete, wherein regenerated coarse aggregate, reclaimed sand, 42.5 cement of normal silicate, II grades of flyash, polycarboxylic acids
The mass ratio of water-reducing agent and water is 1:3.2:3.5:0.76:0.24:0.015:0.82, the coagulation that mixing divergence is 680~750
Soil, tests its 28 days intensity and seepage-resistant grade is shown in Table 1.
Comparative example 2
A kind of clean method of building refuse recycled aggregate, flow chart are shown in Fig. 1, specifically include following steps：
1) building waste is crushed and then is sub-elected 3mm grain size above sections using jaw crusher, obtain Regenerated Bone
Material 1；
2) preparation purge tank：Purge tank includes large-scale round can 3 (diameter about 10m, the height of a upper end opening sealed bottom
About 9m), 3 bottom of round can is connected to foam maker 4, and foam maker 4 is connected to detergent container 5, and detergent is delivered to
It foams in foam maker 4, and by (the density 70kg/m of gained foam 63) fill to (foam-filled height in round can 3
Account for the 3/5 of round can height)；The round can bottom is also connected to three-way flow divider valve 7, and two of which shunting outlet is arranged with waste liquid respectively
Go out pipeline 8 and connects 5 with detergent container；When being wherein connected to detergent container 5, after recyclable cleaning and regeneration aggregate lather collapse
Gained waste liquid, is foamed and (forms detergent and recycle system) again；
3) recycled aggregate 1 obtained by step 1) is dropped down onto by being unloaded at the top of purge tank in purge tank using conveyer belt 2, wherein regenerating
Aggregate unloads the bottom end for dropping down onto recycling conveyer belt 9 and is sent in aggregate bin 10, recycles to obtain cleaning recycled aggregate；Two wherein used
The speed of a conveyer belt is consistent, and makes recycled aggregate from foam is entered to sending out foam by controlling the rate of conveyer belt
In time be 5min.
Foam height declines comparatively fast in cleaning unit in this comparative example, and 10min height loss is more than 10%.
Clean aggregate obtained by this comparative example is crushed, sieves obtained grain size 5-25mm regeneration clean aggregates and grain size 0-
5mm regeneration cleaning sand；It is applied to and prepares concrete wherein regenerated coarse aggregate, reclaimed sand, 42.5 cement of normal silicate, II
The mass ratio of grade flyash, polycarboxylate water-reducer and water is 1:3.2:3.5:0.76:0.24:0.013:0.82, gained concrete
28 days intensity and seepage-resistant grade test result are shown in Table 1.
Embodiment 1
A kind of half dry-washing type construction refuse regenerated aggregate clean method of environment-friendly type foam, flow and the substantially phase of comparative example 1
Together, the difference is that increasing a cleaning unit, following steps are specifically included：
1) building waste is crushed and then is sub-elected 3mm grain size above sections using jaw crusher, obtain Regenerated Bone
Material 1；
2) preparation purge tank：Purge tank includes large-scale round can (diameter about 10m, the height of a upper end opening sealed bottom
About 9m), infusion port is arranged in round can bottom, it is connected to foam maker, and foam maker is connected to detergent container, will clean
Agent is delivered in foam maker and foams, and by gained foam (density 70kg/m3) filled to round can by infusion port
In (foam-filled height accounts for the 3/5 of round can height)；The round can bottom also sets up leakage fluid dram, is connect with three-way flow divider valve,
In two shunting outlet connect respectively with waste liquid discharge line and detergent container；Control leakage fluid dram is connected to detergent container
When, gained waste liquid after recyclable cleaning and regeneration aggregate lather collapse is foamed and (forms detergent and recycle system) again；
3) recycled aggregate obtained by step 1) is dropped down onto by being unloaded at the top of purge tank in purge tank using conveyer belt, wherein Regenerated Bone
Material unloads the bottom end of the conveyer belt for dropping down onto second cleaning unit, and transmits to unload and drop down onto in second cleaning unit, then by the
Conveyer belt in two cleaning units is sent in aggregate bin, recycles to obtain cleaning recycled aggregate；Two cleanings wherein used are single
The speed of conveyer belt in member is consistent, and makes recycled aggregate from foam is entered to sending out by controlling the rate of conveyer belt
Time in foam is 5min.
In the present embodiment, foam height declines very fast in first cleaning unit, and foam height, which is lost, in 10min is more than
10%, foam height declines more slow in second cleaning unit, and 10min height loss is no more than 10%.
Cleaning recycled aggregate obtained by this implementation is crushed, sieves obtained grain size 5-25mm regeneration cleaning coarse aggregate and grain
Diameter 0-5mm regeneration cleaning sand；It is applied to and prepares concrete, wherein regeneration cleaning coarse aggregate, regeneration cleaning sand, common silicic acid
42.5 cement of salt, II grades of flyash, polycarboxylate water-reducer and water mass ratio be 1:3.2:3.5:0.76:0.24:0.012:
0.82, mixing divergence is the concrete of 680~750mm；And its 28 days intensity and seepage-resistant grade are tested, it the results are shown in Table 1.
Embodiment 2
A kind of half dry-washing type construction refuse regenerated aggregate clean method of environment-friendly type foam, this method are walked with described in embodiment 1
It is rapid roughly the same, the difference is that using 3 cleaning units.
Foam height declines comparatively fast in first cleaning unit in the present embodiment, and 10min height loss is more than 10%, the
Two, three cleaning unit foam heights decline more slow, and foam height loss is no more than 10% in 10min.
Cleaning recycled aggregate obtained by this implementation is crushed, sieves obtained grain size 5-25mm regeneration cleaning coarse aggregate and grain
Diameter 0-5mm regeneration cleaning sand；Be applied to and prepare concrete, specific steps with embodiment 1,28 days intensity of gained concrete and
Seepage-resistant grade test result is shown in Table 1.
The performance test results of concrete obtained by 1 embodiment 1-2 of table and comparative example 1-2
| Number | Water-reducing agent dosage | 28 days intensity | Seepage-resistant grade |
| Comparative example 1 | 1.5% | 27.3MPa | P4 |
| Comparative example 2 | 1.3% | 29.2MPa | P6 |
| Embodiment 1 | 1.2% | 32.8MPa | P6 |
| Embodiment 2 | 1.2% | 33.5MPa | P6 |
The above results show：
1) from strength test results this it appears that：Recycled aggregate is cleaned as obtained by more than two cleaning units to prepare
Concrete strength (embodiment 1,2) ＞ cleaning unit (comparative example 1) is not passed through by cleaning unit (comparative example 2) ＞；
And by three cleaning unit regenerated aggregate intensity with it is essentially identical by two cleaning units.This explanation is single by a cleaning
Member has certain cleaning function to regenerated aggregate greasy dirt, but non-washes clean；And the increase of third cleaning unit does not make again
The raw greasy dirt degree of cleaning that gathers materials further increases.This is consistent with foam fall off rate result.
2) concrete impervious ability is prepared by the regenerated aggregate after cleaning unit to be apparently higher than not through cleaning unit.
3) water-reducing agent dosage is substantially reduced when preparing concrete by the regenerated aggregate after cleaning unit.
Obviously, above-described embodiment be only intended to clearly illustrate made by example, and not limitation to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation or change therefore amplified
It moves within still in the protection domain of the invention.
Claims (7)
1. a kind of half dry-washing type construction refuse regenerated aggregate clean method of environment-friendly type foam, which is characterized in that include the following steps：
1) building waste is crushed, sorted, obtain recycled aggregate；
2) preparation purge tank：The purge tank includes the round can of a upper end opening sealed bottom, and round can bottom occurs with foam
Device is connected to, and is foamed using detergent in the foam maker, and gained foam is filled by infusion port into round can；
3) recycled aggregate obtained by step 1) is dropped down onto by being unloaded at the top of purge tank in purge tank using conveyer belt, one of conveyer belt
A cleaning unit is formed with a purge tank, the recycled aggregate sent out in previous cleaning unit, which unloads, drops down onto next cleaning
The conveyer belt bottom end of unit, and transmit, unload and drop down onto in next one cleaning unit；Recycled aggregate is logical in the last one cleaning unit
It crosses recycling conveyer belt to be sent in aggregate bin, recycles to obtain cleaning recycled aggregate；
Mass percent shared by each component is in the detergent：Foaming agent 2~3%, stabilizer 0.3~0.5%, detergent 1
~2%, remaining is water；
The foaming agent presses 55 by fat alcohol polyethenoxy ether sodium sulfate and lauryl sodium sulfate:45~60:40 mass ratio is mixed
It closes；The stabilizer is modified silicone resin polyethers lotion；The detergent is neopelex, dodecyl sulphur
One or both of sour sodium mixes.
2. clean method according to claim 1, which is characterized in that the grain size of the recycled aggregate is not less than 3mm.
3. clean method according to claim 1, which is characterized in that setting 2 or more cleaning unit in step 3).
4. clean method according to claim 1, which is characterized in that in step 3) in each cleaning unit of control, regeneration
Aggregate from enter round can in foam to the time sent out in foam be not less than 5min.
5. clean method according to claim 1, which is characterized in that foaming gained foam is close in the foam maker
Degree is 60~120kg/m3。
6. clean method according to claim 1, which is characterized in that the foam maker is connect with detergent container,
Detergent in detergent container is sent in foam maker.
7. clean method according to claim 1, which is characterized in that the round can bottom is also connect with three-way flow divider valve,
Two of which shunting outlet is connect with waste liquid discharge line and detergent container respectively.
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| CN109265037B (en) | 2018-11-09 | 2019-11-22 | 山东大学 | A kind of apparatus and method gathered materials based on in-situ preparation C-S-H intensifying regenerating |
| CN109503011A (en) * | 2018-11-15 | 2019-03-22 | 盐城市百世达建材有限公司 | A kind of recovery method of little particle sandstone in concrete walls |
| CN111623383B (en) * | 2019-02-28 | 2023-10-13 | 青岛海尔智慧厨房电器有限公司 | Cleaning device, integrated kitchen range and control method of integrated kitchen range |
| CN110078391A (en) * | 2019-04-17 | 2019-08-02 | 苏州鑫蔚谷环保产业有限公司 | A kind of building waste, which is milled, disposes recoverying and utilizing method |
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| CN101549351A (en) * | 2009-05-08 | 2009-10-07 | 深圳市绿发鹏程环保科技有限公司 | Building refuse treatment regeneration system |
| CN202752095U (en) * | 2012-08-24 | 2013-02-27 | 首钢总公司 | Scraper type wet washer |
| CN204544858U (en) * | 2015-04-23 | 2015-08-12 | 陕西建新环保科技发展有限公司 | A kind of water washing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549351A (en) * | 2009-05-08 | 2009-10-07 | 深圳市绿发鹏程环保科技有限公司 | Building refuse treatment regeneration system |
| CN202752095U (en) * | 2012-08-24 | 2013-02-27 | 首钢总公司 | Scraper type wet washer |
| CN204544858U (en) * | 2015-04-23 | 2015-08-12 | 陕西建新环保科技发展有限公司 | A kind of water washing device |
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