CN110357562A - Construction refuse resource processing method - Google Patents
Construction refuse resource processing method Download PDFInfo
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- CN110357562A CN110357562A CN201910533258.0A CN201910533258A CN110357562A CN 110357562 A CN110357562 A CN 110357562A CN 201910533258 A CN201910533258 A CN 201910533258A CN 110357562 A CN110357562 A CN 110357562A
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- building waste
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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
- C04B20/10—Coating or impregnating
- C04B20/1051—Organo-metallic compounds; Organo-silicon compounds, e.g. bentone
-
- 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
- C04B28/24—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 containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of construction refuse resource processing methods, belong to building field, its key points of the technical solution are that including that broken artificial sortings, magnetic separation, level-one screening, level-one, selection by winnowing, surface be modified, prepared by slurry and curing molding.Invention achieves the effect for converting building waste to available resource can be crossed, applied in the recovery processing of building waste.
Description
Technical field
The present invention relates to building wastes to convert field, more specifically, it is related to a kind of construction refuse resource processing side
Method.
Background technique
With industrialization, the acceleration of urbanization process, construction industry has also obtained rapid growth, has thereby produced a large amount of buildings
Rubbish.Most building wastes are unprocessed, are just landfilled or topple over mode and arbitrarily handle in countryside or rural area.These rubbish
Mainly common brick, armored concrete and its mixture.These building wastes overwhelming majority is unprocessed just directly to be transported to countryside
Or rural area is handled using air storage or landfill by the way of, and stack and landfill then need to consume largely take over the land for use, rubbish it is clear
The construction investments such as fortune, meanwhile, it clears and has aggravated environmental pollution again with fugitive dust with dropping in stacking process.Modern metropolitan cities towards
Today of industrialization, rapid urbanization development, the rubbish that a large amount of engineering constructions generate just are threaten the natural environment of human survival.
Developed country compared with already having carried out a series of fruitful researchs and practice for this problem, it was demonstrated that realizes the money of building waste
Source is the good recipe for solving this social concern conscientiously.But so far, the related work of China's construction refuse resource is opposite
Thus lag brings various detrimental effects to society, environment and resource.
Therefore, statement is held based on above-mentioned, the invention proposes a kind of construction refuse resource processing methods.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of construction refuse resource processing side
Method, by artificial sortings, magnetic separation, level-one screening, level-one be broken, selection by winnowing, surface are modified, prepared by slurry and curing molding etc.
Step can be realized conversion of the building waste to building brick.
To achieve the above object, the present invention provides the following technical scheme that a kind of construction refuse resource processing method, packet
Include following steps:
(1) artificial to sort: to be classified by the way of manually sorting to building waste；
(2) magnetic separation: by the building waste after artificial screening by magnetic separator, the metalliferous material in material is removed；
(3) level-one is sieved: the building waste after sorting is sieved into the first building waste, the second building waste with sieve, wherein
Partial size of the partial size of first building waste less than the second building waste；
(4) level-one is broken: the second building waste after level-one is sieved enters oscillating feeder by feed bin；Second building waste
It is sent into crusher A and is crushed by oscillating feeder, until all broken second building wastes pass through the first sieve；
Wherein, the aperture of the first sieve is less than or equal to the partial size of the first building waste；
(5) it selection by winnowing: is sent into winnowing machine by the first building waste and by broken second building waste of level-one, removes material
In plastics, fiber；
(6) surface is modified: taking construction waste powder to be put into mixer according to mass fraction the material after selection by winnowing, after water is added
Mixing, makes it keep wet；Then it takes silane coupling agent to be diluted with dehydrated alcohol, is uniformly dripped in the case where being sufficiently stirred
It is added in construction waste powder；After mixing to construction waste powder and silane coupler solution, it is placed in 60~80 DEG C dry
Dry 1h in dry case, obtains the modified construction waste powder in surface, spare drying；
(7) prepared by slurry: taking surface-modified construction waste powder spare；By the epoxy resin of mass fraction at 60-80 DEG C
After being substantially soluble in organic solvent under the conditions of temperature, filler, stearate or liquid plasticizer, organic are sequentially added under stirring condition
Fiber, silicone oil are added curing agent and stir evenly after mixing evenly；It is then gradually adding ready construction waste powder, and
The viscosity of slurry is adjusted with suitable organic solvent, after mixing evenly up to building waste composite material sizing agent；
(8) curing molding: by 25 parts of 2-3 parts of 300 parts of composite material sizing agent, water, hydroxymethyl, methyl cellulose sodium in step (7)
It after being mixed evenly, places 12 hours, is then broken up said mixture with blender, 60 parts of flyash, stone are added later
20 parts of cream powder, 25 parts of white lime, 3-5 parts of silane coupling agent, 13-17 parts of dehydrated alcohol, 10 parts of silica sol, 20 parts of sodium metasilicate,
20 parts of persulfuric acid calcium, 9 parts of potassium permanganate, 105 parts of water put into blender and are stirred, and mixing time is not less than 60 minutes, stir
Pressure forming in pressure brickmaking machine, pressure 70-80KN are sent into after mixing, brick after molding is put into plate fluidisation machine and is warming up to
160-200 degrees Celsius and 10-20 ware is kept the temperature, then take out and be put into warehouse, 14 days are placed under the conditions of temperature is 20-30 ° i.e.
It can outbound；
The construction waste powder is that 200 mesh build removal building site rubbish；
The silane coupling agent is KH-550, KH-560 or KH-570.
By using above-mentioned technical proposal, working principle:
Building waste sorts, after screening through artificial, obtains the building waste of different-grain diameter.Surface of material is caused to generate due to broken
Some micro-cracks, excessive micro-crack can not only reduce the hardness of material, but also the water absorption rate of material can be made to increase, and influence to regenerate
The utilization rate of aggregate, the present invention carry out different degrees of break process for the building waste of different-grain diameter, effectively control object
Expect the quantity of crizzle.Level-one material carries out two-stage crushing after hot-air seasoning, and drying and processing, which can weaken, remains on level-one
The bonding strength of mortar and aggregate in material facilitates mortar in subsequent shattering process and falls off from aggregate surface.Different-grain diameter
Building waste through different degrees of break process, the recycled aggregate in the higher same particle size range of uniformity coefficient can be obtained,
Good separation effect, division of labor operation, saves human and material resources；Two-stage crushing is carried out after level-one drying materials, ensure that the surface of aggregate
Cleanliness；4th building waste is rinsed, influences the impurity of intensity to remove clay, mud etc..The building waste is multiple simultaneously
Condensation material surface hardness is high, snap-resistent ability is strong, density is small, and has preferable water resistance, ventilative water permeability, not only may be used
To be used to brickmaking, constructure shakeproof, urban drainage drain cover plate, the hardening of landslide terrain surface etc. can also be applied to
It is widely applied field.
Preferable: the organic solvent in the step (7) includes acetone, benzene, toluene or ethyl alcohol.
By using above-mentioned technical proposal, acetone, benzene, toluene or ethyl alcohol are from a wealth of sources, convenient for obtaining.
Preferable: the filler in the step (7) is phenolic resin, polyvinyl chloride, polystyrene or waste plastic.
By using above-mentioned technical proposal, phenolic resin, polyvinyl chloride, polystyrene or waste plastic are from a wealth of sources, just
In acquisition.
Preferable: the stearate in the step (7) is calcium stearate or zinc stearate；The liquid plasticizer is neighbour
Rutgers or dibutyl phthalate.
By using above-mentioned technical proposal, calcium stearate can reduce demoulding difficulty, and repefral has good
Good adherence and waterproof performance, can not only improve the globality of building waste composite material sizing agent, additionally it is possible to improve solidification
The waterproof performance of brick after molding.
Preferable: the curing agent in the step (7) is diethylenetriamine, hexamethylenetetramine or polyamide.
By using above-mentioned technical proposal, the speed of the curing reaction of building waste composite material sizing agent can be accelerated, made
Building waste composite material sizing agent curing reaction speed can faster retrogradation, or user control curing agent use
The speed of curing reaction is controlled while amount.
It is preferable: be added alkali-activator in the step (6), alkali-activator is Ca (OH) 2, Na2SiO39H2O,
The mixture of one or more of Na2SO4.
By using above-mentioned technical proposal, the hydration reaction of construction waste powder can be accelerated, it can be to building waste powder
The hydration reaction of material plays catalytic action, and the speed of construction waste powder hydration reaction is controlled convenient for user.
Preferable: the composite material sizing agent in the step (8) is prepared by the raw material of following mass fractions: surface
1 part of modified construction waste powder；25-35 parts of epoxy resin；8-12 parts of organic solvent；13-17 parts of filler；Stearate or liquid
1-3 parts of body plasticizer；0.5-1.5 parts of fiber；20-30 parts of silicone oil；3-5 parts of curing agent.
By using above-mentioned technical proposal, the intensity after composite material sizing agent solidifies can be enhanced, while can also be made
Composite material sizing agent has good hydrophobicity, so that composite material sizing agent is shaped to after brick, waterproof resistance is improved.
It is preferable: in the step (5), the first building waste and the second building waste are handled by sand processed after selection by winnowing,
It is completely converted into the aggregate that partial size is not more than 5mm.
By using above-mentioned technical proposal, the building waste of different-grain diameter can be obtained through different degrees of break process
Recycled aggregate in the even higher same particle size range of degree, good separation effect, division of labor operation save human and material resources, ensure that
The surface cleanliness of aggregate, can remove clay, mud etc. influences the impurity of intensity.
In conclusion the present invention has the advantages that compared with the prior art
1. by artificial sortings, magnetic separation, level-one screening) level-one is broken, selection by winnowing, surface are modified) slurry prepares and is solidified into
Type and etc., it can be realized conversion of the building waste to building brick.
2. face crack is few, and elongated particles are few, uniformly through the broken aggregate of impact breaker close to cube
Mostly preferably.
3. the higher same grain of uniformity coefficient can be obtained through different degrees of break process in the building waste of different-grain diameter
Recycled aggregate within the scope of diameter, good separation effect, division of labor operation save human and material resources, ensure that the surface cleanliness of aggregate；It will
4th building waste rinses, and influences the impurity of intensity to remove clay, mud etc..
Specific embodiment
A kind of embodiment: construction refuse resource processing method, comprising the following steps:
(1) artificial to sort: to be classified by the way of manually sorting to building waste.
(2) magnetic separation: by the building waste after artificial screening by magnetic separator, the metalliferous material in material is removed.
(3) level-one is sieved: the building waste after sorting is sieved into the first building waste, the second building waste with sieve,
Wherein, partial size of the partial size of the first building waste less than the second building waste.
(4) level-one is broken: the second building waste after level-one is sieved enters oscillating feeder by feed bin；Second building
Rubbish is sent into crusher A by oscillating feeder and is crushed, until all broken second building wastes pass through first
Sieve；Wherein, the aperture of the first sieve is less than or equal to the partial size of the first building waste.
(5) it selection by winnowing: is sent into winnowing machine, removes by the first building waste and by broken second building waste of level-one
Plastics, fiber in material；The first building waste and the second building waste are handled by sand processed after selection by winnowing, are completely converted into grain
Diameter is not more than the aggregate of 5mm, i.e. construction waste powder.
(6) surface is modified: the material after selection by winnowing being put into mixer, mixes after water is added, it is made to keep wet；
Then it takes silane coupling agent to be diluted with dehydrated alcohol, and 2 solution of Ca (OH) is added, dropped evenly in the case where being sufficiently stirred
In construction waste powder,；After mixing to construction waste powder and silane coupler solution, it is placed in 60~80 DEG C of drying box
Middle dry 1h obtains the modified construction waste powder in surface, spare drying.
(7) prepared by slurry: taking surface-modified construction waste powder spare；By epoxy resin in 60-80 DEG C of temperature strip
After being substantially soluble in toluene under part, waste plastic, zinc stearate or repefral, organic are sequentially added under stirring condition
Fiber, silicone oil are added hexamethylenetetramine or polyamide and stir evenly after mixing evenly；It is then gradually adding ready
Construction waste powder, and the viscosity of slurry is adjusted with suitable organic solvent, after mixing evenly up to building waste composite material
Slurry.
(8) curing molding: by composite material sizing agent 300kg, water 2-3kg, the hydroxymethyl, methyl cellulose sodium in step (7)
After 25kg is mixed evenly, places 12 hours, then said mixture is broken up with blender, flyash is added later
60kg, land plaster 20kg, white lime 25kg, silane coupling agent 3-5kg, dehydrated alcohol 13-17kg, silica sol 10kg, silicic acid
Sodium 20kg, persulfuric acid calcium 20kg, potassium permanganate 9kg, water 105kg put into blender and are stirred, and mixing time is not less than 60
Minute, pressure forming in pressure brickmaking machine, pressure 70-80KN are sent into after stirring, brick after molding is put into plate fluidisation
Machine is warming up to 160-200 degrees Celsius and keeps the temperature 10-20 ware, then takes out and is put into warehouse, is 20-30 ° of condition decentralization in temperature
Setting 14 days can outbound.
Construction waste powder is that 200 mesh build removal building site rubbish.
Silane coupling agent is KH-550, KH-560 or KH-570.
Composite material sizing agent is prepared by the raw material of following mass fractions: the modified construction waste powder 1kg in surface；
Epoxy resin 25-35kg；Organic solvent 8-12kg；Filler 13-17kg；Stearate or liquid plasticizer 1-3kg；Fiber 0.5-
1.5kg；Silicone oil 20-30kg；Curing agent 3-5kg.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of construction refuse resource processing method, it is characterised in that: the following steps are included:
(1) artificial to sort: to be classified by the way of manually sorting to building waste；
(2) magnetic separation: by the building waste after artificial screening by magnetic separator, the metalliferous material in material is removed；
(3) level-one is sieved: the building waste after sorting is sieved into the first building waste, the second building waste with sieve, wherein
Partial size of the partial size of first building waste less than the second building waste；
(4) level-one is broken: the second building waste after level-one is sieved enters oscillating feeder by feed bin；Second building waste
It is sent into crusher A and is crushed by oscillating feeder, until all broken second building wastes pass through the first sieve；
Wherein, the aperture of the first sieve is less than or equal to the partial size of the first building waste；
(5) it selection by winnowing: is sent into winnowing machine by the first building waste and by broken second building waste of level-one, removes material
In plastics, fiber；
(6) surface is modified: taking construction waste powder to be put into mixer according to mass fraction the material after selection by winnowing, after water is added
Mixing, makes it keep wet；Then it takes silane coupling agent to be diluted with dehydrated alcohol, is uniformly dripped in the case where being sufficiently stirred
It is added in construction waste powder；After mixing to construction waste powder and silane coupler solution, it is placed in 60~80 DEG C dry
Dry 1h in dry case, obtains the modified construction waste powder in surface, spare drying；
(7) prepared by slurry: taking surface-modified construction waste powder spare；By the epoxy resin of mass fraction at 60-80 DEG C
After being substantially soluble in organic solvent under the conditions of temperature, filler, stearate or liquid plasticizer, organic are sequentially added under stirring condition
Fiber, silicone oil are added curing agent and stir evenly after mixing evenly；It is then gradually adding ready construction waste powder, and
The viscosity of slurry is adjusted with suitable organic solvent, after mixing evenly up to building waste composite material sizing agent；
(8) curing molding: by 25 parts of 2-3 parts of 300 parts of composite material sizing agent, water, hydroxymethyl, methyl cellulose sodium in step (7)
It after being mixed evenly, places 12 hours, is then broken up said mixture with blender, 60 parts of flyash, stone are added later
20 parts of cream powder, 25 parts of white lime, 3-5 parts of silane coupling agent, 13-17 parts of dehydrated alcohol, 10 parts of silica sol, 20 parts of sodium metasilicate,
20 parts of persulfuric acid calcium, 9 parts of potassium permanganate, 105 parts of water put into blender and are stirred, and mixing time is not less than 60 minutes, stir
Pressure forming in pressure brickmaking machine, pressure 70-80KN are sent into after mixing, brick after molding is put into plate fluidisation machine and is warming up to
160-200 degrees Celsius and 10-20 ware is kept the temperature, then take out and be put into warehouse, 14 days are placed under the conditions of temperature is 20-30 ° i.e.
It can outbound；
The construction waste powder is that 200 mesh build removal building site rubbish；
The silane coupling agent is KH-550, KH-560 or KH-570.
2. construction refuse resource processing method according to claim 1, it is characterised in that: having in the step (7)
Solvent includes acetone, benzene, toluene or ethyl alcohol.
3. construction refuse resource processing method according to claim 2, it is characterised in that: filling out in the step (7)
Material is phenolic resin, polyvinyl chloride, polystyrene or waste plastic.
4. construction refuse resource processing method according to claim 3, it is characterised in that: hard in the step (7)
Resin acid salt is calcium stearate or zinc stearate；The liquid plasticizer is two fourth of repefral or phthalic acid
Ester.
5. construction refuse resource processing method according to claim 4, it is characterised in that: consolidating in the step (7)
Agent is diethylenetriamine, hexamethylenetetramine or polyamide.
6. construction refuse resource processing method according to claim 5, it is characterised in that: be added in the step (6)
Alkali-activator, alkali-activator are the mixture of one or more of Ca (OH) 2, Na2SiO39H2O, Na2SO4.
7. construction refuse resource processing method according to claim 6, it is characterised in that: answering in the step (8)
Condensation material slurry is prepared by the raw material of following mass fractions: 1 part of construction waste powder of surface modification；Epoxy resin
25-35 parts；8-12 parts of organic solvent；13-17 parts of filler；Stearate or 1-3 parts of liquid plasticizer；0.5-1.5 parts of fiber；Silicon
It is 20-30 parts oily；3-5 parts of curing agent.
8. construction refuse resource processing method according to claim 7, it is characterised in that: in the step (5), selection by winnowing
The first building waste and the second building waste are handled by sand processed afterwards, are completely converted into the aggregate that partial size is not more than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533258.0A CN110357562A (en) | 2019-06-19 | 2019-06-19 | Construction refuse resource processing method |
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| CN201910533258.0A CN110357562A (en) | 2019-06-19 | 2019-06-19 | Construction refuse resource processing method |
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ID=68216375
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| CN201910533258.0A Pending CN110357562A (en) | 2019-06-19 | 2019-06-19 | Construction refuse resource processing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233394A (en) * | 2020-01-17 | 2020-06-05 | 重庆华西易通建设股份有限公司 | Prefabricated building reserved joint sealing dry-mixed plastering mortar and preparation method thereof |
| CN111848095A (en) * | 2020-08-21 | 2020-10-30 | 深圳市洪桦环保科技有限公司 | Method and system for recycling construction waste |
| CN112321186A (en) * | 2020-11-06 | 2021-02-05 | 广州市银象石材有限公司 | Method for preparing sandstone by using construction waste |
| CN112608093A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | Dry-mixed plastering mortar prepared from recycled aggregate and preparation method thereof |
| CN112608094A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | High-strength concrete prepared from recycled aggregate and preparation method thereof |
| CN112608092A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | Dry-mixed ground mortar prepared from recycled aggregate and preparation method thereof |
| CN112608052A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | Dry-mixed masonry mortar prepared from recycled aggregate and preparation method thereof |
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| CN103351112A (en) * | 2013-07-04 | 2013-10-16 | 陕西理工学院 | Preparing method for high-strength light multihole construction waste composite |
| CN107777943A (en) * | 2016-08-31 | 2018-03-09 | 孝义市科尔峰建筑垃圾再利用有限公司 | Construction refuse regenerated brick and preparation method thereof |
| CN109678378A (en) * | 2019-03-08 | 2019-04-26 | 泗县惠赐建材有限公司 | A kind of application of building waste treatment process and gained recycled aggregate |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103351112A (en) * | 2013-07-04 | 2013-10-16 | 陕西理工学院 | Preparing method for high-strength light multihole construction waste composite |
| CN107777943A (en) * | 2016-08-31 | 2018-03-09 | 孝义市科尔峰建筑垃圾再利用有限公司 | Construction refuse regenerated brick and preparation method thereof |
| CN109678378A (en) * | 2019-03-08 | 2019-04-26 | 泗县惠赐建材有限公司 | A kind of application of building waste treatment process and gained recycled aggregate |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111233394A (en) * | 2020-01-17 | 2020-06-05 | 重庆华西易通建设股份有限公司 | Prefabricated building reserved joint sealing dry-mixed plastering mortar and preparation method thereof |
| CN112608093A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | Dry-mixed plastering mortar prepared from recycled aggregate and preparation method thereof |
| CN112608094A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | High-strength concrete prepared from recycled aggregate and preparation method thereof |
| CN112608092A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | Dry-mixed ground mortar prepared from recycled aggregate and preparation method thereof |
| CN112608052A (en) * | 2020-07-28 | 2021-04-06 | 厦门天润锦龙建材有限公司 | Dry-mixed masonry mortar prepared from recycled aggregate and preparation method thereof |
| CN111848095A (en) * | 2020-08-21 | 2020-10-30 | 深圳市洪桦环保科技有限公司 | Method and system for recycling construction waste |
| CN112321186A (en) * | 2020-11-06 | 2021-02-05 | 广州市银象石材有限公司 | Method for preparing sandstone by using construction waste |
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