CN109664406A - A kind of building castoff recycling treatment system - Google Patents
A kind of building castoff recycling treatment system Download PDFInfo
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- CN109664406A CN109664406A CN201811435749.3A CN201811435749A CN109664406A CN 109664406 A CN109664406 A CN 109664406A CN 201811435749 A CN201811435749 A CN 201811435749A CN 109664406 A CN109664406 A CN 109664406A
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- China
- Prior art keywords
- coarse aggregate
- aggregate
- storehouse
- building castoff
- water
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
-
- 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
-
- 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
-
- 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
-
- 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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The present invention relates to a kind of building castoff recycling treatment systems, it should include building castoff cracking and sorting system and regeneration concrete preparation system, building castoff passes through 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 sieve screening machines are sorted, it is broken, magnetic separation, preheating, coarse aggregate and fine aggregate are isolated after calcining and screening, finally by control cement, flyash, regenerated coarse aggregate, recycled fine aggregate, water-reducing agent, water keeps certain mass ratio can the good regeneration concrete of processability, pollution brought by building castoff processing can not only be reduced, concrete of good performance can also be provided for building, realize the money of building castoff Sourceization processing, 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 building castoff recycling treatment 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 building castoff recycling treatment system proposed the purpose of the present invention is to solve background technique, it is first
First pass through artificial separation platform, impeller breaker, oscillating feeder, magnetic separator, conveyer belt, dust absorption fan, separating table, pre-
Hot device, grinder, calcining furnace, cooling storehouse, vibrating screening machine, impact crusher, double sieve screening machines sorted, be crushed,
Coarse aggregate and fine aggregate are isolated after magnetic separation, preheating, calcining and screening, then pass through control cement, flyash, the thick bone of regeneration
Material, recycled fine aggregate, water-reducing agent, water keep certain mass ratio can the good regeneration concrete of processability, can not only
Reduce pollution brought by building castoff processing, additionally it is possible to provide concrete of good performance for building, it is useless to realize building
The recycling treatment of gurry.
Building castoff recycling treatment system of the invention, comprising: building castoff cracking and sorting system and regeneration are mixed
Solidifying soil 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 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.
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 building castoff recycling treatment systems to carry out at building castoff recycling
The method of reason, 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) 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 present invention passes through artificial separation platform, impeller breaker, oscillating feeder, magnetic separator, conveyer belt, dust suction wind
Machine, separating table, preheater, grinder, calcining furnace, cooling storehouse, vibrating screening machine, impact crusher, double sieve screening machines into
Coarse aggregate and fine aggregate are isolated after row sorting, broken, magnetic separation, preheating, calcining and screening, then passes through control cement, fine coal
Ash, regenerated coarse aggregate, recycled fine aggregate, water-reducing agent, water keep certain quality proportioning can the good regeneration of processability it is mixed
Solidifying soil, can not only reduce pollution brought by building castoff processing, additionally it is possible to concrete of good performance is provided for building,
The recycling treatment of building castoff is realized, which has applications well prospect.
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 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 building castoff recycling treatment system 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 building castoff recycling treatment system, comprising: building castoff cracking and sorting system and again
Growing 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 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) 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.
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 makes building castoff pass through artificial separation platform, impeller breaker, oscillating feeder, magnet
Separator, conveyer belt, dust absorption fan, separating table, preheater, grinder, calcining furnace, cooling storehouse, vibrating screening machine, impact type are broken
Broken machine, double sieve screening machines are sorted, are crushed, isolating coarse aggregate and fine aggregate after magnetic separation, preheating, calcining and screening, most
Keep certain mass ratio that can prepare by control cement, flyash, regenerated coarse aggregate, recycled fine aggregate, water-reducing agent, water afterwards
Regeneration concrete of good performance can not only reduce pollution brought by building castoff processing, additionally it is possible to provide for building
Concrete of good performance realizes the recycling treatment of building castoff, has applications well prospect.
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 building castoff recycling treatment system, which includes building castoff cracking and sorting system and regeneration coagulation
Native preparation system；It is characterized in that, the building castoff cracking and sorting system include the hopper with apron feeder, it is artificial
Sorting platform, impeller breaker, oscillating feeder, magnetic separator, conveyer belt, dust absorption fan, separating table, preheater, grinding
Machine, 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；It is the hopper with apron feeder, artificial
Sorting platform, impeller breaker, oscillating feeder, magnetic separator, conveyer belt, separating table, preheater, grinder, calcining furnace,
Cooling storehouse, vibrating screening machine, impact crusher are sequentially connected by conveyer belt, the preheater be used for just broken material into
Row heating, arrival end connection impeller breaker, oscillating feeder and the magnetic separator of the dust absorption fan, outlet end connection vibration
Dynamic screening machine, by transmission band connection vibrating screening machine, the vibrating screening machine goes out for the outlet end of the impact crusher
Mouth end connection 0~5mm fine aggregate storehouse and double sieve screening machines, the outlet end of double sieve screening machines connect the thick bone of 5~10mm
Feed bin, 10~20mm coarse aggregate storehouse and 20~40mm coarse aggregate storehouse；
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. a kind of building castoff recycling treatment system according to claim 1, it is characterised in that: the preheater is
Tubular heat exchanger, heating temperature are 400 DEG C.
3. a kind of building castoff recycling treatment system according to claim 2, it is characterised in that: the calcining furnace control
Calcination temperature processed is 600 DEG C, calcination time 2h, and 900 DEG C are then warming up in 0.5h and keeps the temperature 2h.
4. a kind of building castoff recycling treatment system according to claim 3, it is characterised in that: the water-reducing agent is
Polycarboxylate water-reducer.
5. a kind of building castoff recycling treatment system according to claim 4, it is characterised in that: in the blender
The proportion of each material 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 side of building castoff recycling treatment system progress building castoff recycling treatment described in claim 5
Method, 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) 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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| CN110238161A (en) * | 2019-06-19 | 2019-09-17 | 邢二江 | A kind of robot sorting building waste |
| CN110671147A (en) * | 2019-10-31 | 2020-01-10 | 河南理工大学 | Construction system and construction process for filling goafs of different scales by using waste concrete |
| CN110668725A (en) * | 2019-11-07 | 2020-01-10 | 达州市同展建材有限责任公司 | Method for producing blended sand powder by using building waste residues |
| CN112045864A (en) * | 2020-08-19 | 2020-12-08 | 新疆互力佳源环保科技有限公司 | Steel slag resource recovery screening system for steel production |
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| CN113117857B (en) * | 2019-12-31 | 2022-03-08 | 同济大学 | Intelligent crushing integrated system for continuous graded recycled aggregate |
| CN113121165A (en) * | 2019-12-31 | 2021-07-16 | 同济大学 | Fully recycled concrete and preparation method thereof |
| CN113117857A (en) * | 2019-12-31 | 2021-07-16 | 同济大学 | Intelligent crushing integrated system for continuous graded recycled aggregate |
| CN112045864A (en) * | 2020-08-19 | 2020-12-08 | 新疆互力佳源环保科技有限公司 | Steel slag resource recovery screening system for steel production |
| CN112496256A (en) * | 2020-11-14 | 2021-03-16 | 上海冶铸材料科技有限公司 | Automatic production line for sand powder for metallurgical casting |
| CN112496256B (en) * | 2020-11-14 | 2022-08-05 | 上海冶铸材料科技有限公司 | Automatic production line for sand powder for metallurgical casting |
| CN112659361A (en) * | 2020-12-17 | 2021-04-16 | 江苏日不落再生资源科技有限公司 | Dry-mixed mortar preparation method based on construction waste treatment |
| CN115414999A (en) * | 2022-08-31 | 2022-12-02 | 中国十七冶集团有限公司 | Construction device and construction method for recycling concrete waste on construction site |
| CN115613862A (en) * | 2022-10-19 | 2023-01-17 | 武汉建工集团股份有限公司 | Intelligent nomadic type quick recycled concrete production workshop and construction method |
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Application publication date: 20190423 |