CN110316988A - A kind of application for the method and gained fine aggregate preparing fine aggregate with building waste - Google Patents
A kind of application for the method and gained fine aggregate preparing fine aggregate with building waste Download PDFInfo
- Publication number
- CN110316988A CN110316988A CN201810276843.2A CN201810276843A CN110316988A CN 110316988 A CN110316988 A CN 110316988A CN 201810276843 A CN201810276843 A CN 201810276843A CN 110316988 A CN110316988 A CN 110316988A
- Authority
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- China
- Prior art keywords
- building waste
- fine aggregate
- roller
- aggregate
- crushed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention discloses a kind of applications of method and gained fine aggregate that fine aggregate is prepared with building waste, the method for preparing fine aggregate is the following steps are included: destruction step: being crushed building waste with crusher, obtains 35mm broken building waste below；Circulation screening step: broken building waste send to the drum screen for favouring bottom surface setting through feeding device and carries out second level screening, obtain the fine aggregate that partial size is less than 5mm, and building waste of the partial size greater than 5mm send to pulverizer and is further crushed, building waste after pulverized is sent through second conveyer to drum screen processing, obtains fine aggregate so on circulate.Obtained fine aggregate can be used for preparing high performance non-sintered porous brick.Method and process provided by the invention is simple, and production cost is low, and can turn waste into wealth, and building waste is recycled.
Description
Technical field
The present invention relates to construction refuse regenerated production fields, prepare fine aggregate with building waste more particularly, to a kind of
The application of method and gained fine aggregate.
Background technique
As China industrializes.The accelerated development of Development of China's Urbanization, construction industry is also fast-developing, the building rubbish generated together
Rubbish is also increasing.It as the saying goes, rubbish is the resource for having misplaced place, and building waste is even more so.Building waste is mainly with useless
Based on the inorganic non-metallic materials such as brick, waste concrete and antiquated sand, in addition, there are also a small amount of steel, timber, plastic and glass etc.,
It is all a valuable wealth after the recovered utilization of these substances.And at present to the utilization rate of useless brick, waste concrete and antiquated sand compared with
It is low.
In addition China's most area river sand shortage, not only when with sand peak, sand it is on the high side, even without natural
Sand provides, and is using sea with the process in the huge situation of sand notch, affecting Urbanization Construction or even some coastal areas
Sand, the serious quality safety for affecting building.
And go out recycled aggregate using building waste remanufacture, not only conform with the sustainable development of green production management style
Theory turns waste into wealth；Also mitigate the exploitation to natural sand；Building waste can also be handled well simultaneously.Therefore, to building rubbish
Rubbish is recycled with long-range practical significance.
It is currently, there are the method for much preparing recycled aggregate with building waste, but most of complex process, production cost
Height is unable to meet production demand.
Summary of the invention
To overcome the shortcomings of existing technologies, the present invention provides a kind of method for preparing fine aggregate with building waste, prepares work
Skill is simple, and production cost is low, and the fine aggregate being prepared can be directly used for preparing high performance no-firing brick, realize building
The recycling of rubbish.
The fine aggregate obtained another object of the present invention is to provide the method for preparing fine aggregate with building waste
Using.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A method of fine aggregate is prepared with building waste, comprising the following steps:
Building waste: being crushed by destruction step with crusher, obtains 35mm broken building waste below；
Circulation screening step: broken building waste send to the drum screen for favouring bottom surface setting through feeding device and carries out second level sieve
Point, the drum screen includes the end cap sieved for the first order, the roller that for the second level sieves affixed with end cap lower section, sets
The shell on the outside of roller and the driving device for driving drum screen to rotate are set, the end cap is in middle part to roller direction indent
Globoidal structure and by grid side length be 15-20mm lattice-shaped sieve form；The grid that the roller is 3-5mm by grid side length
Trellis sieve coiling forms, and the bottom of roller is the lattice-shaped sieve of grid side length 5-30mm, and the bottom part down of roller is equipped with mixed
Aggregate collecting tank is closed, the outer casing bottom is equipped with fine aggregate collecting tank；15-20mm or less the partial size after the screening of the end cap first order
Building waste enters roller and carries out second level screening, and remaining building waste is sent crusher back to by second conveyer and carried out into one
Step is crushed or send to pulverizer and crushed；The building waste sieved into the second level is further sieved, from the side of roller
Fine aggregate of the partial size sifted out less than 5mm enters fine aggregate collecting tank, and the mixing aggregate sifted out from cylinder bottom enters mixing bone
To expect collecting tank, and send to pulverizer and continue to be crushed, the mixing aggregate after being crushed is sent through second conveyer to drum screen processing,
Fine aggregate is obtained so on circulate.
The method provided by the invention for preparing fine aggregate with building waste, main includes broken and circulation screening step, work
Skill is simple；Screening step is recycled using the rotary screen with second level sieving actoion, quickly screening is able to achieve and obtains fine aggregate,
Device therefor structure is simple.
It is broken more abundant in order to allow, and guarantee the quality of final fine aggregate, the building waste into crusher first passes through
Pre-treatment step, it is preferable that the method for preparing fine aggregate with building waste further includes pre-treatment step: it is first rejected steel
Muscle, timber and iron tramp, and it is crushed to 200-300mm with artificial means such as cuttings.
In order to solve the problems, such as the fugitive dust of production process, it is preferable that the method for preparing fine aggregate with building waste is also wrapped
Dust removal step is included, carries out spray for dust suppression during broken and circulation screening step using dust-extraction unit, specifically, the dedusting
Device includes the fugitive dust cover being arranged near the fugitive dust point of crusher, drum screen and sand making machine, is provided with spray on the fugitive dust cover
Mist device, for spraying water mist with dedusting.
Preferably, rigid support members are preferably provided on the outside of roller, to prevent roller from deforming because of the impact of aggregate.
The rigid support members are preferably irony girdle ring plate, it is highly preferred that the number of the girdle ring plate is at least 3, difference lock ring
At the both ends and middle part of the roller.
Since the sieve made of wire netting is at low cost, and the impact of fine aggregate can be subjected to for a long time during the separation process
Without damaging, long service life, therefore, the material of the sieve are preferably iron wire.
Application of the fine aggregate that the method for preparing fine aggregate with building waste is prepared in no-firing brick.It is excellent
Selection of land, the no-firing brick are concrete perforated brick.It can be used for the preparation of no-firing brick according to fine aggregate prepared by this method, it is special
It is not the preparation of non-sintered perforated brick, has greatly saved the production cost of porous brick.
A kind of porous brick: including the component calculated by weight as follows:
According to this method preparation 10 parts -30 parts of fine aggregate, 20 parts -40 parts of rubble, 5 parts -15 parts of flyash, 20-25 parts of cement,
10 parts -14 parts of haydite, 6 parts -8 parts of calcium carbonate, 3 parts -6 parts of metallic fiber, 1 part -2 parts of aluminium oxide, 1.5 part -2 of expanded and vitrified small ball
Part and 2.5 parts -9 parts of auxiliary agent for strengthening performance.
Compared with prior art, the beneficial effects of the present invention are as follows:
(1) fine aggregate that can be used for preparing non-sintered porous brick has been made in building waste by the present invention, is on the one hand solved and is built
On the one hand the recycling problem of building refuse provides new raw material sources to prepare non-sintered porous brick, realize resource and follow
Ring utilizes and protection environment；
(2) method of the invention for preparing fine aggregate with building waste mainly includes being crushed with cycle sieve in two steps, technique
Simply, easy to operate, it is at low cost；
(3) method of the invention for preparing fine aggregate with building waste, including dust removal step, the fugitive dust for solving production process are asked
Topic；
(4) method of the invention for preparing fine aggregate with building waste is provided with rigid support structure to the roller outside of rotary screen
Part prevents roller from deforming because of the impact of aggregate, extends the service life of equipment；And sieve is supported by iron wire, is reduced costs；
(5) fine aggregate is prepared using building waste in the present invention, the no-firing brick tool for recycling the fine aggregate to be prepared
There are excellent compression strength and frost resistance, meets professional standard.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is the structural schematic diagram of rotary screen used in the present invention；
Fig. 3 is the perspective view of rotary screen used in the present invention.
Wherein appended drawing reference are as follows: end cap 10；Roller 20；Shell 30；Girdle ring plate 21.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawing to embodiment of the present invention
It is described in more detail.Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, cannot
It is understood as a limitation of this patent；Embodiment in order to better illustrate the present invention, the certain components of attached drawing have omission, amplification or
It reduces, does not represent the size of actual product；It will be understood by those skilled in the art that certain known features and its explanation can in attached drawing
Can omit will be understood by.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if the orientation or positional relationship for having the instructions such as term " on ", "lower", "left", "right" is based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore positional relationship is described in attached drawing
Term only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment
The method provided by the invention for preparing fine aggregate with building waste, as shown in Figure 1, mainly including destruction step: using
Building waste is crushed by crusher, obtains 35mm broken building waste below；Recycle screening step: broken building
Rubbish send to the drum screen for favouring bottom surface setting through feeding device and carries out second level screening, as shown in Figures 2 and 3, the rolling
Sieve includes existing for the end cap 10 of first order screening, with affixed below end cap 10 for the roller 20 of second level screening, setting
Shell 30 on the outside of roller and the driving device (not shown) for driving drum screen to rotate, the end cap 10 is in middle part to roller
The globoidal structure of 20 direction indents and by grid side length be 15-20mm lattice-shaped sieve form；The roller 20 is by grid side
The lattice-shaped sieve coiling of a length of 3-5mm forms, and the bottom of roller 20 is the lattice-shaped sieve of grid side length 5-30mm, roller 20
Bottom part down be equipped with mixing aggregate collecting tank, 30 bottom of shell be equipped with fine aggregate collecting tank；It is sieved through the end cap first order
The building waste of 15-20mm or less partial size enters roller progress second level screening afterwards, and remaining building waste is filled by the first transmission
It sets and sends crusher back to and be further crushed or send to pulverizer and crushed；The building waste sieved into the second level is by into one
Step screening, fine aggregate of the partial size sifted out from the side of roller 20 less than 5mm enter fine aggregate collecting tank, sift out from cylinder bottom
Mixing aggregate enter mixing aggregate collecting tank, and send to pulverizer and continue to be crushed, the mixing aggregate after being crushed is passed through second
It send device to send to drum screen processing, obtains fine aggregate so on circulate.
Preferably, pre-treatment step is first passed through into the building waste of crusher, i.e., it is first rejected into steel
Muscle, timber and iron class impurity, and it is crushed to 200-300mm with artificial means such as cuttings, so that it is broken more abundant, and protect
Demonstrate,prove the quality of final fine aggregate.
Scheme as an improvement of the above scheme, the above method further include dust removal step, are being crushed and are following using dust-extraction unit
Ring grizzly carries out spray for dust suppression in the process step by step, and specifically, the dust-extraction unit includes in crusher, drum screen and sand making machine
The fugitive dust cover that fugitive dust point is nearby arranged is provided with spraying device on the fugitive dust cover, for spraying water mist with dedusting, to solve to give birth to
The fugitive dust problem of production process.
The sieve of scheme as a further improvement of the foregoing solution, drum screen is made of iron wire, the outside setting of roller 20
There are the rigid support members of at least three irony girdle ring plate, lock ring is at the both ends and middle part of the roller 20 respectively.
The working principle of the present embodiment are as follows: by the building waste of the 200-300mm obtained after pretreatment send to crusher into
Row is broken, obtains 35mm broken building waste below；The broken building waste is sent through feeding device to favouring bottom surface
The roller of the drum screen of setting, drum screen rotates under the action of power device, remains in end cap through the screening of the end cap first order
Building waste separates due to rotation with end cap, send through second conveyer to crusher or pulverizer after collection and is further crushed；
And the building waste of 15-20mm or less partial size enters roller and carries out second level screening, building waste of the partial size less than 5mm is sized
Out on the outside of roller, fine aggregate is thus obtained, into fine aggregate collecting tank, for collecting and shifting fine aggregate；Partial size is greater than 5mm's
Building waste or building waste with partial size less than 5mm are exported from below with the rotation of roller, are thus mixed
Aggregate, into mixing aggregate collecting tank；Mixing aggregate is further crushed through pulverizer, and pulverized material is through the second transmission
Device send to drum screen and is further sieved, and so on circulate, obtains pure fine aggregate.
It can be used for preparing non-sintered porous brick using fine aggregate prepared by this method, the raw material including following parts by weight:
20 parts of fine aggregate, 25 parts of the rubble, 10 parts of flyash, 20 parts of cement, haydite 10 of the method preparation provided according to the present invention
Part, 6 parts of calcium carbonate, 4 parts of metallic fiber, 1 part of aluminium oxide, 1.5 parts of expanded and vitrified small ball and the auxiliary agent 2.5 for strengthening performance
Part.
Specifically, the partial size of fine aggregate is 2mm, and the partial size of rubble is 5mm, and the partial size of flyash is 2mm；
Metallic fiber is steel fibre, length 1mm, a length of 0.5mm of diameter.
Auxiliary agent includes the fungicide that parts by weight are 1 part, the antifreezing agent that parts by weight are 1 part and 0.5 part other auxiliary agents, sterilization
Agent is the mixture of sulphur powder, lime sulfur, copper sulphate, mercuric chloride, lime Bordeaux mixture, Kocide SD and cuprous oxide；It is antifreeze
Agent is the mixture of sodium nitrite, calcium chloride, calcium nitrite, urea and ethylene glycol；Other auxiliary agents include retarder, plasticiser,
The mixture of water-reducing agent, air entraining agent and levelling agent.
The preparation method of above-mentioned non-sintered porous brick provided in this embodiment, comprising the following steps:
(1) various raw materials are weighed by the parts by weight, the raw material is put into high-speed mixer and is stirred, is slowly added simultaneously
Water stirs 20min, obtains uniform mixture；
(2) by the mixture addition water carry out ripening, digestion time 3d, 30 DEG C of Aging Temperature, at above-mentioned ageing
The mixture of reason carries out shelving processing, enclosing material time 3h；
(3) by extrusion forming in the shelving treated mixture is placed in vibration-extrusion molding, porous brick adobe is made；
(4) the porous brick adobe is transferred to interior to conserve, the time of indoor maintenance is 22h；
(5) the porous brick adobe by the indoor maintenance is supported in the constant temperature and humidity fog room that temperature is 20 DEG C and humidity is 90%
6d is protected, porous brick is obtained.
According to the examination criteria of GB/T 25779-2010, resulting porous brick is tested for the property after tested, the present invention
Preparation-obtained porous brick compression strength is 41.6MPa, and frost resistance is 3.2%(monolithic mass loss rate), meet industry mark
It is quasi-.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (9)
1. a kind of method for preparing fine aggregate with building waste, which comprises the following steps:
Building waste: being crushed by destruction step with crusher, obtains 35mm broken building waste below；
Circulation screening step: broken building waste send to the drum screen for favouring bottom surface setting through feeding device and carries out second level sieve
Point, the drum screen includes the rolling for second level screening affixed below end cap (10) and end cap for first order screening
Cylinder (20), the shell (30) being arranged on the outside of roller and the driving device for driving drum screen to rotate, the end cap (10) are in
Globoidal structure from middle part to roller (20) direction indent and by grid side length be 15-20mm lattice-shaped sieve form；The rolling
Cylinder (20) is formed by the lattice-shaped sieve coiling that grid side length is 3-5mm, and the bottom of roller (20) is grid side length 5-30mm's
Lattice-shaped sieve, the bottom part down of roller (20) are equipped with mixing aggregate collecting tank, and shell (30) bottom is received equipped with fine aggregate
Collect slot；The building waste of 15-20mm or less partial size enters roller (20) progress second level sieve after the screening of end cap (10) first order
Point, remaining building waste sends crusher back to by second conveyer and be further crushed or send to pulverizer being crushed；
The building waste sieved into the second level is further sieved, and the partial size sifted out from the side of roller (20) is less than the thin bone of 5mm
Material enter fine aggregate collecting tank, the mixing aggregate sifted out from cylinder bottom enter mixing aggregate collecting tank, and send to pulverizer after
Continuous broken, the mixing aggregate after being crushed is sent through second conveyer to drum screen processing, obtains fine aggregate so on circulate.
2. the method according to claim 1 for preparing fine aggregate with building waste, which is characterized in that further include pretreatment step
It is rapid: the building waste before entering destruction step first to be rejected into reinforcing bar, timber and iron tramp, and by construction waste crushing to 200-
300mm。
3. the method according to claim 1 for preparing fine aggregate with building waste, which is characterized in that further include dedusting step
Suddenly, spray for dust suppression is carried out during broken and circulation screening step using dust-extraction unit, the dust-extraction unit is included in broken
The fugitive dust cover that the fugitive dust point of machine, drum screen and pulverizer is nearby arranged is provided with spraying device on the fugitive dust cover, for spraying
Water mist is with dedusting.
4. the method according to claim 1 for preparing fine aggregate with building waste, which is characterized in that the roller (20)
Outside lock ring has rigid support members, to prevent roller from deforming because of the impact of aggregate.
5. the method according to claim 4 for preparing fine aggregate with building waste, which is characterized in that the rigid support structure
Part is irony girdle ring plate (21).
6. the method according to claim 5 for preparing fine aggregate with building waste, which is characterized in that of the girdle ring plate
Number is at least 3, and lock ring is at the both ends and middle part of the roller respectively.
7. the method according to claim 1 for preparing fine aggregate with building waste, which is characterized in that the sieve is iron wire
Net.
8. the fine aggregate that the method as claimed in any one of claims 1 to 7 for preparing fine aggregate with building waste is prepared
Application in no-firing brick.
9. application according to claim 8, which is characterized in that the no-firing brick is concrete perforated brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276843.2A CN110316988A (en) | 2018-03-30 | 2018-03-30 | A kind of application for the method and gained fine aggregate preparing fine aggregate with building waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276843.2A CN110316988A (en) | 2018-03-30 | 2018-03-30 | A kind of application for the method and gained fine aggregate preparing fine aggregate with building waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110316988A true CN110316988A (en) | 2019-10-11 |
Family
ID=68111539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810276843.2A Withdrawn CN110316988A (en) | 2018-03-30 | 2018-03-30 | A kind of application for the method and gained fine aggregate preparing fine aggregate with building waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110316988A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756325A (en) * | 2019-12-10 | 2020-02-07 | 滁州市富邦新型建材有限公司 | Preparation device and method for waste concrete coarse aggregate |
| CN111701298A (en) * | 2020-06-24 | 2020-09-25 | 石盼盼 | Construction waste aggregate recovery method |
| CN111822088A (en) * | 2020-07-28 | 2020-10-27 | 广东通兴再生资源科技有限公司 | Recycled aggregate crushing, screening and cleaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298874Y (en) * | 1997-05-16 | 1998-12-02 | 伍尚宏 | Rotary drum grading sieve |
| KR20040029235A (en) * | 2002-09-25 | 2004-04-06 | 산양환경산업 주식회사 | A Recycling Aggregate Of A Construction Waste Manufacturing Method |
| CN104874591A (en) * | 2015-06-11 | 2015-09-02 | 揭阳市绿源环保处理有限公司 | Building remaining mud processing technology and system |
| CN106336162A (en) * | 2016-08-16 | 2017-01-18 | 明光市凯旋新型建材厂 | Production process for construction waste concrete porous brick |
| CN107098722A (en) * | 2017-06-14 | 2017-08-29 | 合肥市旺友门窗有限公司 | A kind of new concrete porous brick and preparation method thereof |
| CN107253833A (en) * | 2017-06-30 | 2017-10-17 | 华南理工大学 | A kind of environment-friendly production process that full recycled fine aggregate is prepared with building castoff |
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2018
- 2018-03-30 CN CN201810276843.2A patent/CN110316988A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298874Y (en) * | 1997-05-16 | 1998-12-02 | 伍尚宏 | Rotary drum grading sieve |
| KR20040029235A (en) * | 2002-09-25 | 2004-04-06 | 산양환경산업 주식회사 | A Recycling Aggregate Of A Construction Waste Manufacturing Method |
| CN104874591A (en) * | 2015-06-11 | 2015-09-02 | 揭阳市绿源环保处理有限公司 | Building remaining mud processing technology and system |
| CN106336162A (en) * | 2016-08-16 | 2017-01-18 | 明光市凯旋新型建材厂 | Production process for construction waste concrete porous brick |
| CN107098722A (en) * | 2017-06-14 | 2017-08-29 | 合肥市旺友门窗有限公司 | A kind of new concrete porous brick and preparation method thereof |
| CN107253833A (en) * | 2017-06-30 | 2017-10-17 | 华南理工大学 | A kind of environment-friendly production process that full recycled fine aggregate is prepared with building castoff |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756325A (en) * | 2019-12-10 | 2020-02-07 | 滁州市富邦新型建材有限公司 | Preparation device and method for waste concrete coarse aggregate |
| CN110756325B (en) * | 2019-12-10 | 2021-07-16 | 滁州市富邦新型建材有限公司 | Preparation method of waste concrete coarse aggregate |
| CN111701298A (en) * | 2020-06-24 | 2020-09-25 | 石盼盼 | Construction waste aggregate recovery method |
| CN111822088A (en) * | 2020-07-28 | 2020-10-27 | 广东通兴再生资源科技有限公司 | Recycled aggregate crushing, screening and cleaning device |
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