CN109675906A - A kind of wholly-owned source recycling and reusing system of building castoff - Google Patents
A kind of wholly-owned source recycling and reusing system of building castoff Download PDFInfo
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- CN109675906A CN109675906A CN201811435721.XA CN201811435721A CN109675906A CN 109675906 A CN109675906 A CN 109675906A CN 201811435721 A CN201811435721 A CN 201811435721A CN 109675906 A CN109675906 A CN 109675906A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- 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
- C04B20/04—Heat 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
-
- 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
- Y02W30/58—Construction or demolition [C&D] waste
-
- 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
- Y02W30/78—Recycling of wood or furniture waste
-
- 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 present invention relates to a kind of wholly-owned source recycling and reusing systems of building castoff, it should include building castoff cracking and sorting system and regeneration concrete preparation system, building castoff is by sorting building castoff, it is broken, magnetic separation, preheating, coarse aggregate and fine aggregate are isolated after calcining and screening, then pass through control cement, flyash, regenerated coarse aggregate, recycled fine aggregate, water-reducing agent, water keeps certain mass ratio can the good regeneration concrete of processability, simultaneously to the timber sub-elected, plastics combination kitchen waste, which is combined, prepares garbage derivatived fuel, pollution brought by building castoff processing can not only be reduced, concrete of good performance can also be provided for building, it can also realize the recycling and reusing of whole resources in building castoff, has applications well prospect.
Description
Technical field
The present invention relates to a kind of processing system of waste, in particular to a kind of wholly-owned source recycling and reusing of building castoff
System.
Background technique
The level of urbanization in China is in the rapid growth stage, alreadys exceed 50% in 2011, until 2025 will be more than
60%；Along with the raising of the level of urbanization, in addition the population base that China is excessively huge, so that construction area is much fallen per capita
Afterwards in world average level, the housing need of people is chronically at rigid demand, and construction industry is thus flourishing long time;It goes as building
The most raw material of usage amount in industry, the demand of concrete material is growing day by day, and Chinese commodity concrete yield reaches within 2014
15.5 hundred million sides, increase by 11.39% on a year-on-year basis；And thick, fine aggregate is the main constituent in concrete, as skeleton structure
It supports, the demand 1700-2000kg in every cubic meter of concrete, sandstone is erroneously interpreted as nothing within the quite a long time
Poor endless resource and abuse by unconfined exploitation and wantonly；Sandstone ore resources, which are used as, to be needed to undergo very long geological conditions can
Natural mineral resources are formed, total storage capacity is limited, and necessarily leading to limited sand and stone resources, supply falls short of demand, price and day
It is all to increase.
City not only needs a large amount of concrete raw material resource during continuous development, but also can generate a large amount of
Building waste；Currently, building materials industry raw material are increasingly deficient, the especially short and its caused sand of sandstone raw material resources
Stone raw material quality problem, it has also become restrict the bottleneck of concrete technology development and endanger the hidden danger of building safety；And it is another
The stacking of aspect building waste and environmental problem caused by landfill, problems concerning land resources are increasingly serious, and urgent need is sought more reasonable
Treatment approach；Therefore, the regeneration of building waste, realizes that it is turned waste into wealth, and both can solve building waste and has stacked landfill
Caused environmental problem, and can solve the increasingly deficient problem of building materials industry raw material, it is advantageously implemented building materials industry
Sustainable development.
Summary of the invention
In broad terms, recycled aggregate, which refers to, carries out concrete, brick and tile, mortar, glass, the ceramics etc. in building waste
The processing technologys such as sorting, broken, screening, form certain grain composition, the material of concrete batching are applied to as aggregate；Root
Classify according to its grain diameter, particle of the partial size between 5mm~20mm is known as regenerated coarse aggregate, the particle less than 5mm at
For recycled fine aggregate；The present invention is studied by the physicochemical property to two aggregates, is realized whole in a kind of recovery processing
Building waste method.
A kind of wholly-owned source recycling and reusing of the building castoff proposed the purpose of the present invention is to solve background technique
System passes through artificial separation platform first, impeller breaker, oscillating feeder, magnetic separator, conveyer belt, dust absorption fan, divides
Destage, preheater, grinder, calcining furnace, cooling storehouse, vibrating screening machine, impact crusher, double sieve screening machines are divided
Coarse aggregate and fine aggregate are isolated after choosing, broken, magnetic separation, preheating, calcining and screening, then passes through control cement, flyash, again
Raw coarse aggregate, recycled fine aggregate, water-reducing agent, water keep certain mass ratio can the good regeneration concrete of processability, together
When the timber, the plastics combination kitchen waste that sub-elect combined prepare garbage derivatived fuel, construction waste can not only be reduced
Pollution brought by object processing, additionally it is possible to provide concrete of good performance for building, additionally it is possible to realize complete in building castoff
The recycling and reusing of portion's resource has applications well prospect.
The wholly-owned source recycling and reusing system of building castoff of the invention, comprising: building castoff cracking and sorting system and
Regeneration concrete preparation system；
The building castoff cracking and sorting system includes that the hopper with apron feeder, artificial separation platform, rotor are broken
Machine, oscillating feeder, magnetic separator, conveyer belt, dust absorption fan, separating table, preheater, grinder, calcining furnace, cooling storehouse,
Vibrating screening machine, impact crusher, double sieve screening machines and 0~5mm fine aggregate storehouse, 5~10mm coarse aggregate storehouse, 10~
20mm coarse aggregate storehouse, 20~40mm coarse aggregate storehouse；The hopper with apron feeder, artificial separation platform, rotor are broken
Machine, oscillating feeder, magnetic separator, conveyer belt, separating table, preheater, grinder, calcining furnace, cooling storehouse, vibrosieve
Machine, impact crusher are sequentially connected by conveyer belt, and the preheater is used to heat just broken material, the dust suction
Arrival end connection impeller breaker, oscillating feeder and the magnetic separator of blower, outlet end connection vibrating screening machine, the punching
By transmission band connection vibrating screening machine, it is thin that the outlet end of the vibrating screening machine connects 0~5mm for the outlet end of impact crusher
Aggregate bin and double sieve screening machines, the outlet end of double sieve screening machines connect 5~10mm coarse aggregate storehouse, the thick bone of 10~20mm
Feed bin and 20~40mm coarse aggregate storehouse；
The garbage derivatived fuel preparation system includes two drying machines, sorting machine, mixing machine, molding machines, two drying machines point
It is not connected in artificial separation platform with kitchen waste collecting box, after sorting machine is by transmitting band connection drying machine to artificial separation
Material sorted again, sub-elect plastics and timber；Timber, plastics and kitchen waste after drying proportionally convey
It is broken that mixing is carried out into crusher, broken mixed material, which is delivered in mixing machine, to be mixed, and mixing machine passes through transmission
Band connection molding machine；
The regeneration concrete preparation system includes double-shaft spiral mixing machine, dryer, conveyer belt, blending bunker, blender, cement
Storehouse, fine coal ash cellar, water-reducing agent tank and water tank, 0~5mm fine aggregate storehouse, 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate
The outlet in storehouse with metering pound connect, metering pound to fine aggregate and coarse aggregate weighing after by double-shaft spiral mixing machine mixing after with baking
Dry machine connection, dryer are connect by conveyer belt with blending bunker entrance, cement bin, fine coal ash cellar, water-reducing agent tank and water tank difference
It is connect after being connect with metering pound with blender.
With the rapid development of my social economy, the demand to the energy can be increasing, and China has become second-biggest-in-the-world
Energy-consuming state is continued to develop by present circumstances, domestic conventional energy resource, such as storage deficiency will be present in matchmaker, oil and natural gas
Crisis, and the problem of environmental pollution being induced by it also is badly in need of being controlled；Garbage derivatived fuel is as new energy substance
Alternative some conventional energy resources, can substitute coal.
Minimum requirements due to coping with its calorific value when waste is used as secondary fuel is 11MJ/kg, it is therefore desirable to be ensured
The calorific value of the garbage derivatived fuel of preparation is greater than above-mentioned minimum；Therefore, it selects in mixed mixed material containing (according to matter
Measure percentages) 40% kitchen waste powder, 20% wood powder and 40% molding powder.
As further restriction of the invention, preheater is tubular heat exchanger, and heating temperature is 400 DEG C.
As further restriction of the invention, it is 600 DEG C, calcination time 2h that calcining furnace, which controls calcination temperature, then
It is warming up to 900 DEG C in 0.5h and keeps the temperature 2h.
As further restriction of the invention, water-reducing agent is polycarboxylate water-reducer.
It is further limited as of the invention, the proportion of each material in blender are as follows: cement: flyash: regenerate thick bone
Material: recycled fine aggregate: water-reducing agent: water (mass ratio)=300:50:850:760:8:185；Wherein, 0~5mm in regenerated coarse aggregate
Fine aggregate, 5~10mm coarse aggregate mass ratio be 1:1.
The invention further particularly discloses a kind of wholly-owned source recycling and reusing systems of building castoff to carry out construction waste goods and materials
The method of sourceization processing, this method comprises the following steps:
(1) by building castoff discharging to the hopper with apron feeder, it is flat that artificial separation is then delivered to by conveyer belt
Platform carries out artificial separation, and timber, plastics, clothing and the glass sorting process in waste are kept in, and it is logical to remain waste
Cross conveyer belt and enter in impeller breaker and be tentatively crushed, it is just broken after material by oscillating feeder into Magnet Separater
Even feeding sub-elects scrap iron and reinforcing bar in first broken material by Magnet Separater, and the material after magnetic separation is defeated by conveyer belt
It send to separating table and carries out secondary artificial separation, timber therein, plastics, clothing and glass sorting process are kept in；
(2) material after just broken and sorting, which is delivered in preheater, to be preheated, and controls preheating temperature at 400 DEG C, control preheats
Time 3h, the material of preheating, which is delivered in grinder, is ground 4h, and the powder carry after grinding is carried out into calcining furnace
Calcination processing calcines 2h at 600 DEG C, and 900 DEG C are then warming up in 0.5h and keeps the temperature 2h again, cooling storehouse is then sent to and exists
It is cooled to room temperature in 0.5h and obtains modified building waste just crushed aggregate；
(3) just crushed aggregate filters out 0~5mm fine aggregate by vibrating screening machine and partial size is less than the coarse aggregate of 40mm, other
Sufficiently broken material is not delivered in impact crusher by conveyer belt carries out second-time breakage, is then return to vibrosieve
It is sieved in machine, 0~5mm fine aggregate is delivered in 0~5mm fine aggregate storehouse and stores, and the coarse aggregate less than 40mm is delivered to double
Sieve screening machine carries out screening process, and the aggregate screened out is delivered to 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate respectively
Storehouse, 20~40mm coarse aggregate storehouse are stored；
(4) it is delivered to after timber, plastics, clothing and glass that artificial separation platform sub-elects being dried by drying machine point
Machine is selected, sorting machine sorts the material after artificial separation again, sub-elects plastics and timber, timber, plastics after drying
It is proportionally delivered in crusher mix with kitchen waste and be crushed, broken mixed material is delivered in mixing machine
It is mixed, is delivered to the obtained garbage derivatived fuel stick of compression moulding in molding machine after mixing a period of time；
(5) 0~5mm fine aggregate, 5~10mm coarse aggregate, 10~20mm coarse aggregate are weighed by measuring pound, according to the proportion
Each component aggregate is mixed by double-shaft spiral mixing machine, is then dried by dryer, it is mixed after drying
It closes and expects to be delivered in blending bunker to be stored；Mixture and cement, flyash, water-reducing agent, water in blending bunker pass through meter respectively
Octarius is delivered in blender according to the proportion after being weighed and is stirred mixing, and regeneration mixed mud can be obtained.
The beneficial effects of the present invention are:
1, it by the way that the dust absorption fan connecting with impeller breaker, oscillating feeder and magnetic separator is arranged, can not only control
Dust in device, additionally it is possible to which the dust particles of diffusion are subjected to recycling and reusing.
2, by just it is broken after building castoff particle preheat after grind, aggregate glued on top can be reduced
Waste cement mortar finally to be sieved the recycled aggregate being had excellent performance；Also, the powder after grinding is forged
It burns, the recycled aggregate for obtaining have excellent performance in turn can be modified to powder.
3, the present invention by by city kitchen waste in building castoff timber and plastics combine and do
Garbage derivatived fuel is prepared by compression moulding after dry, broken, mixing, enables the resource in building castoff maximized
It recycles, the kitchen waste in city can also be eliminated.
4, the present invention keeps certain by control cement, flyash, regenerated coarse aggregate, recycled fine aggregate, water-reducing agent, water
Quality proportioning being capable of the good regeneration concrete of processability.
Detailed description of the invention
Fig. 1 is the schematic diagram of the wholly-owned source recycling and reusing system of building castoff proposed by the present invention.
Specific embodiment
It is next combined with specific embodiments below that the present invention is further described.
Referring to Fig. 1, a kind of wholly-owned source recycling and reusing system of building castoff, comprising: building castoff cracking and sorting system
System and regeneration concrete preparation system；
The building castoff cracking and sorting system includes that the hopper with apron feeder, artificial separation platform, rotor are broken
Machine, oscillating feeder, magnetic separator, conveyer belt, dust absorption fan, separating table, preheater, grinder, calcining furnace, cooling storehouse,
Vibrating screening machine, impact crusher, double sieve screening machines and 0~5mm fine aggregate storehouse, 5~10mm coarse aggregate storehouse, 10~
20mm coarse aggregate storehouse, 20~40mm coarse aggregate storehouse；The hopper with apron feeder, artificial separation platform, rotor are broken
Machine, oscillating feeder, magnetic separator, conveyer belt, separating table, preheater, grinder, calcining furnace, cooling storehouse, vibrosieve
Machine, impact crusher are sequentially connected by conveyer belt, and the preheater is used to heat just broken material, the dust suction
Arrival end connection impeller breaker, oscillating feeder and the magnetic separator of blower, outlet end connection vibrating screening machine, the punching
By transmission band connection vibrating screening machine, it is thin that the outlet end of the vibrating screening machine connects 0~5mm for the outlet end of impact crusher
Aggregate bin and double sieve screening machines, the outlet end of double sieve screening machines connect 5~10mm coarse aggregate storehouse, the thick bone of 10~20mm
Feed bin and 20~40mm coarse aggregate storehouse；
The garbage derivatived fuel preparation system includes two drying machines, sorting machine, mixing machine, molding machines, two drying machines point
It is not connected in artificial separation platform with kitchen waste collecting box, after sorting machine is by transmitting band connection drying machine to artificial separation
Material sorted again, sub-elect plastics and timber；Timber, plastics and kitchen waste after drying proportionally convey
It is broken that mixing is carried out into crusher, broken mixed material, which is delivered in mixing machine, to be mixed, and mixing machine passes through transmission
Band connection molding machine；
The regeneration concrete preparation system includes double-shaft spiral mixing machine, dryer, conveyer belt, blending bunker, blender, cement
Storehouse, fine coal ash cellar, water-reducing agent tank and water tank, 0~5mm fine aggregate storehouse, 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate
The outlet in storehouse with metering pound connect, metering pound to fine aggregate and coarse aggregate weighing after by double-shaft spiral mixing machine mixing after with baking
Dry machine connection, dryer are connect by conveyer belt with blending bunker entrance, cement bin, fine coal ash cellar, water-reducing agent tank and water tank difference
It is connect after being connect with metering pound with blender.
Building castoff is sub-elected useless by carrying out artificial separation by separating table after impeller breaker, Magnet Separater
The materials such as the timber, plastics, the glass that include in gurry, are then transported in preheater and are preheated, and control preheating temperature 400
DEG C, control preheating time 3h, after preheating will just it is broken after material be ground 4h, then the material after grinding is delivered to
2h is calcined in calcining furnace at 600 DEG C, 900 DEG C are then warming up in 0.5h and keeps the temperature 2h again, is finally cooled to room temperature in 0.5h
After obtain modified building waste just crushed aggregate；First crushed aggregate filters out 0~5mm fine aggregate and partial size by vibrating screening machine
Coarse aggregate less than 40mm, other not sufficiently broken materials are delivered in impact crusher by conveyer belt carries out secondary break
It is broken, it is then return in vibrating screening machine and is sieved.
Wherein, preheater is tubular heat exchanger, and heating temperature is 400 DEG C；It is 600 DEG C that calcining furnace, which controls calcination temperature,
Calcination time is 2h, and 900 DEG C are then warming up in 0.5h and keeps the temperature 2h；Water-reducing agent is polycarboxylate water-reducer.
The implementation method of the embodiment of the present invention specifically: carried out using following steps:
(1) by building castoff discharging to the hopper with apron feeder, it is flat that artificial separation is then delivered to by conveyer belt
Platform carries out artificial separation, and timber, plastics, clothing and the glass sorting process in waste are kept in, and it is logical to remain waste
Cross conveyer belt and enter in impeller breaker and be tentatively crushed, it is just broken after material by oscillating feeder into Magnet Separater
Even feeding sub-elects scrap iron and reinforcing bar in first broken material by Magnet Separater, and the material after magnetic separation is defeated by conveyer belt
It send to separating table and carries out secondary artificial separation, timber therein, plastics, clothing and glass sorting process are kept in；
(2) material after just broken and sorting, which is delivered in preheater, to be preheated, and controls preheating temperature at 400 DEG C, control preheats
Time 3h, the material of preheating, which is delivered in grinder, is ground 4h, and the powder carry after grinding is carried out into calcining furnace
Calcination processing calcines 2h at 600 DEG C, and 900 DEG C are then warming up in 0.5h and keeps the temperature 2h again, cooling storehouse is then sent to and exists
It is cooled to room temperature in 0.5h and obtains modified building waste just crushed aggregate；
(3) just crushed aggregate filters out 0~5mm fine aggregate by vibrating screening machine and partial size is less than the coarse aggregate of 40mm, other
Sufficiently broken material is not delivered in impact crusher by conveyer belt carries out second-time breakage, is then return to vibrosieve
It is sieved in machine, 0~5mm fine aggregate is delivered in 0~5mm fine aggregate storehouse and stores, and the coarse aggregate less than 40mm is delivered to double
Sieve screening machine carries out screening process, and the aggregate screened out is delivered to 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate respectively
Storehouse, 20~40mm coarse aggregate storehouse are stored；
(4) it is delivered to after timber, plastics, clothing and glass that artificial separation platform sub-elects being dried by drying machine point
Machine is selected, sorting machine sorts the material after artificial separation again, sub-elects plastics and timber, timber, plastics after drying
It is proportionally delivered in crusher mix with kitchen waste and be crushed, broken mixed material is delivered in mixing machine
It is mixed, is delivered to the obtained garbage derivatived fuel stick of compression moulding in molding machine after mixing a period of time；
(5) 0~5mm fine aggregate, 5~10mm coarse aggregate, 10~20mm coarse aggregate are weighed by measuring pound, according to the proportion
Each component aggregate is mixed by double-shaft spiral mixing machine, is then dried by dryer, it is mixed after drying
It closes and expects to be delivered in blending bunker to be stored；Mixture and cement, flyash, water-reducing agent, water in blending bunker pass through meter respectively
Octarius is delivered in blender according to the proportion after being weighed and is stirred mixing, and regeneration mixed mud can be obtained.
The minimum requirements that its calorific value is coped with when simultaneously as waste being used as secondary fuel is 11MJ/kg, it is therefore desirable to
The calorific value for the garbage derivatived fuel for ensuring to prepare is greater than above-mentioned minimum；It selects, containing (according to matter in mixed mixed material
Measure percentages) 40% kitchen waste powder, 20% wood powder and 40% molding powder.
Sand coarse aggregate ratio is to influence the important indicator of concrete workability, can significantly improve the intensity and workability of concrete；Cause
This, the present invention studies influence of the different sand coarse aggregate ratios to regeneration concrete performance first.
The compression strength of regeneration concrete under the different sand coarse aggregate ratios of table 1
Table 1 can be seen that the increase with sand coarse aggregate ratio, and Compressive Strength of Recycled Concrete is first increased and reduced afterwards；Reason is to work as sand coarse aggregate ratio
When being 0.47, concrete is more closely knit, and workability is preferable, and intensity reaches maximum value；When sand coarse aggregate ratio is lower than 0.47, gap between aggregate
Rate is relatively large, and with the increase of sand coarse aggregate ratio, voidage is reduced, and concrete is more closely knit, is improved intensity；When sand coarse aggregate ratio is greater than
When 0.47, along with the rising of sand coarse aggregate ratio, regenerated coarse aggregate dosage is significantly reduced, the trend risen is presented in fine aggregate, is eventually led to
The consistency of material increases, and downward trend is presented in the stability decline of material, intensity.
2 regeneration concrete match ratio of table
From table 2 it can be seen that utilizing, when recycled aggregate replaces natural aggregate completely, with the increase of cement consumption, intensity is gradually
It improves；By test, it has also been found that, when cement consumption reaches 300kg, the intensity of regenerative concrete products can meet design and want
It asks.
The compression strength of concrete under the different water consumptions of table 3
As shown in Table 3, in the case that coarse aggregate and fine aggregate match certain in recycled aggregate, with the increase of water consumption, resist
Compressive Strength constantly reduces, therefore takes into account the intensity and water consumption of regeneration concrete, selects water consumption 185.
4 different materials of table combine the compression strength of lower regeneration concrete
| Factor | Cement mixing content (%) | Recycled coarse aggregate contents (%) | Recycled fine aggregate Replacement rate (%) | 28 days compression strength (Mpa) |
| Number | A | B | C | |
| 1 | 300 | 50 | 50 | 36.2 |
| 2 | 300 | 75 | 75 | 35.4 |
| 3 | 300 | 100 | 100 | 34.2 |
| 4 | 310 | 50 | 50 | 34.1 |
| 5 | 310 | 75 | 75 | 35.2 |
| 6 | 310 | 100 | 100 | 34.3 |
| 7 | 320 | 50 | 50 | 36.6 |
| 8 | 320 | 75 | 75 | 35.7 |
| 9 | 320 | 100 | 100 | 36.6 |
From table 4 --- different materials combine the compression strength of lower regeneration concrete, it can be seen that cement mixing content be it is main influence because
Element, as the increase 28d intensity value of cement mixing content is gradually increased, when cement increases to 320kg, 28d reaches design critical value,
It is at this time the optimum mix amount critical point；So influencing intensity is followed successively by cement > recycled fine aggregate > regenerated coarse aggregate.
From the point of view of above-mentioned 9 groups of test datas, when turning to starting point with recycled aggregate utilization rate maximum, in cement consumption
When reaching 300kg, in the case that recycled aggregate Replacement rate is 100%, recycled concrete strength is still full still in 33MPa or more
Sufficient design requirement can also reduce the dosage of cement.
Therefore, regeneration concrete match ratio is selected are as follows: 300 kg of cement, flyash 50kg, regenerated coarse aggregate 850kg, again
Raw fine aggregate 760kg, water-reducing agent 8kg, water 180kg；The optimum mix proportion for determining regeneration concrete is (mass ratio): cement:
Flyash: regenerated coarse aggregate: recycled fine aggregate: additive: water=300:50:850:760:8:185.
Therefore selection controls the proportion of each material in blender are as follows: cement: flyash: regenerated coarse aggregate: recycled fine aggregate:
Water-reducing agent: water (mass ratio)=300:50:850:760:8:185；Wherein, 0~5mm fine aggregate, 5~10mm in regenerated coarse aggregate
The mass ratio of coarse aggregate is 1:1.
System of the invention by artificial separation platform, impeller breaker, oscillating feeder, magnetic separator, conveyer belt,
Dust absorption fan, separating table, preheater, grinder, calcining furnace, cooling storehouse, vibrating screening machine, impact crusher, double sieves sieve
Extension set is sorted, is crushed, isolating coarse aggregate and fine aggregate after magnetic separation, preheating, calcining and screening, and control water is then passed through
Mud, flyash, regenerated coarse aggregate, recycled fine aggregate, water-reducing agent, water keep certain mass ratio can processability it is good again
Growing concrete, while the timber, the plastics combination kitchen waste that sub-elect are combined and prepare garbage derivatived fuel, it can not only subtract
Pollution brought by few building castoff processing, additionally it is possible to provide concrete of good performance for building, additionally it is possible to realize building
The recycling and reusing of whole resources, has applications well prospect in waste.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of wholly-owned source recycling and reusing system of building castoff, the system include building castoff cracking and sorting system, rubbish
Rubbish derivatived fuel preparation system and regeneration concrete preparation system；It is characterized in that, the building castoff cracking and sorting system
Including the hopper with apron feeder, artificial separation platform, impeller breaker, oscillating feeder, magnetic separator, transmission
Band, dust absorption fan, separating table, preheater, grinder, calcining furnace, cooling storehouse, vibrating screening machine, impact crusher, double sieves
Mesh screening machine and 0~5mm fine aggregate storehouse, 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate storehouse, 20~40mm coarse aggregate storehouse；
The hopper with apron feeder, artificial separation platform, impeller breaker, oscillating feeder, magnetic separator, transmission
Band, separating table, preheater, grinder, calcining furnace, cooling storehouse, vibrating screening machine, impact crusher are successively connected by conveyer belt
It connects, the preheater is used to heat just broken material, the arrival end connection impeller breaker of the dust absorption fan, vibration
Batcher and magnetic separator, outlet end connect vibrating screening machine, and the outlet end of the impact crusher is connected by conveyer belt
Connect vibrating screening machine, outlet end connection 0~5mm fine aggregate storehouse of the vibrating screening machine and double sieve screening machines, double sieves
Outlet end connection 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate storehouse and the 20~40mm coarse aggregate storehouse of mesh screening machine；
The garbage derivatived fuel preparation system includes two drying machines, sorting machine, mixing machine, molding machines, two drying machines point
It is not connected in artificial separation platform with kitchen waste collecting box, after sorting machine is by transmitting band connection drying machine to artificial separation
Material sorted again, sub-elect plastics and timber；Timber, plastics and kitchen waste after drying proportionally convey
It is broken that mixing is carried out into crusher, broken mixed material, which is delivered in mixing machine, to be mixed, and mixing machine passes through transmission
Band connection molding machine；
The regeneration concrete preparation system includes double-shaft spiral mixing machine, dryer, conveyer belt, blending bunker, blender, cement
Storehouse, fine coal ash cellar, water-reducing agent tank and water tank, 0~5mm fine aggregate storehouse, 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate
The outlet in storehouse with metering pound connect, metering pound to fine aggregate and coarse aggregate weighing after by double-shaft spiral mixing machine mixing after with baking
Dry machine connection, dryer are connect by conveyer belt with blending bunker entrance, cement bin, fine coal ash cellar, water-reducing agent tank and water tank difference
It is connect after being connect with metering pound with blender.
2. the wholly-owned source recycling and reusing system of a kind of building castoff according to claim 1, it is characterised in that: described pre-
Hot device is tubular heat exchanger, and heating temperature is 400 DEG C.
3. the wholly-owned source recycling and reusing system of a kind of building castoff according to claim 2, it is characterised in that: described to forge
Burning furnace control calcination temperature is 600 DEG C, calcination time 2h, and 900 DEG C are then warming up in 0.5h and keeps the temperature 2h.
4. the wholly-owned source recycling and reusing system of a kind of building castoff according to claim 3, it is characterised in that: described to subtract
Aqua is polycarboxylate water-reducer.
5. the wholly-owned source recycling and reusing system of a kind of building castoff according to claim 4, it is characterised in that: described to stir
Mix the proportion of each material in machine are as follows: cement: flyash: regenerated coarse aggregate: recycled fine aggregate: water-reducing agent: water (mass ratio)=300:
50:850:760:8:185；Wherein, 0~5mm fine aggregate in regenerated coarse aggregate, 5~10mm coarse aggregate mass ratio be 1:1.
6. a kind of wholly-owned source recycling and reusing system of building castoff described in claim 5 carries out at building castoff recycling
The method of reason, characterized by the following steps:
(1) by building castoff discharging to the hopper with apron feeder, it is flat that artificial separation is then delivered to by conveyer belt
Platform carries out artificial separation, and timber, plastics, clothing and the glass sorting process in waste are kept in, and it is logical to remain waste
Cross conveyer belt and enter in impeller breaker and be tentatively crushed, it is just broken after material by oscillating feeder into Magnet Separater
Even feeding sub-elects scrap iron and reinforcing bar in first broken material by Magnet Separater, and the material after magnetic separation is defeated by conveyer belt
It send to separating table and carries out secondary artificial separation, timber therein, plastics, clothing and glass sorting process are kept in；
(2) material after just broken and sorting, which is delivered in preheater, to be preheated, and controls preheating temperature at 400 DEG C, control preheats
Time 3h, the material of preheating, which is delivered in grinder, is ground 4h, and the powder carry after grinding is carried out into calcining furnace
Calcination processing calcines 2h at 600 DEG C, and 900 DEG C are then warming up in 0.5h and keeps the temperature 2h again, cooling storehouse is then sent to and exists
It is cooled to room temperature in 0.5h and obtains modified building waste just crushed aggregate；
(3) just crushed aggregate filters out 0~5mm fine aggregate by vibrating screening machine and partial size is less than the coarse aggregate of 40mm, other
Sufficiently broken material is not delivered in impact crusher by conveyer belt carries out second-time breakage, is then return to vibrosieve
It is sieved in machine, 0~5mm fine aggregate is delivered in 0~5mm fine aggregate storehouse and stores, and the coarse aggregate less than 40mm is delivered to double
Sieve screening machine carries out screening process, and the aggregate screened out is delivered to 5~10mm coarse aggregate storehouse, 10~20mm coarse aggregate respectively
Storehouse, 20~40mm coarse aggregate storehouse are stored；
(4) it is delivered to after timber, plastics, clothing and glass that artificial separation platform sub-elects being dried by drying machine point
Machine is selected, sorting machine sorts the material after artificial separation again, sub-elects plastics and timber, timber, plastics after drying
It is proportionally delivered in crusher mix with kitchen waste and be crushed, broken mixed material is delivered in mixing machine
It is mixed, is delivered to the obtained garbage derivatived fuel stick of compression moulding in molding machine after mixing a period of time；
(5) 0~5mm fine aggregate, 5~10mm coarse aggregate, 10~20mm coarse aggregate are weighed by measuring pound, according to the proportion
Each component aggregate is mixed by double-shaft spiral mixing machine, is then dried by dryer, it is mixed after drying
It closes and expects to be delivered in blending bunker to be stored；Mixture and cement, flyash, water-reducing agent, water in blending bunker pass through meter respectively
Octarius is delivered in blender according to the proportion after being weighed and is stirred mixing, and regeneration mixed mud can be obtained.
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| CN110743899A (en) * | 2019-10-26 | 2020-02-04 | 马强 | Residual muck treatment method for building construction site |
| CN111135949A (en) * | 2019-12-31 | 2020-05-12 | 深圳市华域环保科技有限公司 | Method for producing sand by using building waste soil |
| CN111825415A (en) * | 2020-07-29 | 2020-10-27 | 襄阳市政建设集团有限公司 | Secondary processing and utilizing process for waste concrete blocks |
| CN113121165A (en) * | 2019-12-31 | 2021-07-16 | 同济大学 | Fully recycled concrete and preparation method thereof |
| CN115138670A (en) * | 2022-07-28 | 2022-10-04 | 深圳宏业基岩土科技股份有限公司 | Preparation method of filling agent for reinforcing sludge in construction site |
| CN115722518A (en) * | 2022-10-21 | 2023-03-03 | 太仓金马智能装备有限公司 | Low-carbon efficient recycling treatment system and method for building decoration garbage |
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| CN111135949A (en) * | 2019-12-31 | 2020-05-12 | 深圳市华域环保科技有限公司 | Method for producing sand by using building waste soil |
| CN113121165A (en) * | 2019-12-31 | 2021-07-16 | 同济大学 | Fully recycled concrete and preparation method thereof |
| CN113121165B (en) * | 2019-12-31 | 2022-07-29 | 同济大学 | Fully recycled concrete and preparation method thereof |
| CN111825415A (en) * | 2020-07-29 | 2020-10-27 | 襄阳市政建设集团有限公司 | Secondary processing and utilizing process for waste concrete blocks |
| CN115138670A (en) * | 2022-07-28 | 2022-10-04 | 深圳宏业基岩土科技股份有限公司 | Preparation method of filling agent for reinforcing sludge in construction site |
| CN115138670B (en) * | 2022-07-28 | 2023-12-08 | 深圳宏业基岩土科技股份有限公司 | Preparation method of filler for reinforcing sludge in construction site |
| CN115722518A (en) * | 2022-10-21 | 2023-03-03 | 太仓金马智能装备有限公司 | Low-carbon efficient recycling treatment system and method for building decoration garbage |
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