CN103936316A - Waste-concrete regeneration system - Google Patents
Waste-concrete regeneration system Download PDFInfo
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- CN103936316A CN103936316A CN201310023931.9A CN201310023931A CN103936316A CN 103936316 A CN103936316 A CN 103936316A CN 201310023931 A CN201310023931 A CN 201310023931A CN 103936316 A CN103936316 A CN 103936316A
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- waste
- rotary conveyor
- old concrete
- crusher
- fine
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- 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
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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a waste-concrete regeneration and reutilization system. The system comprises a large stock bin, a vibration feeding machine and a jaw crusher which are connected in sequence. The bottom of the jaw crusher is connected to a first belt conveyor. A permanent magnet de-ironing separator with high magnetic field intensity is suspended right above the first belt conveyor. The system also comprises a fine crusher, a second belt conveyor and a vibrating screen which are connected in sequence. The fine crusher is connected to the first belt conveyor. The vibrating screen is connected to a finished-product stock ground respectively through a third belt conveyor, a fourth belt conveyor, a fifth belt conveyor and a sixth belt conveyor. The waste concrete is effectively processed by the system and metal substances doped in the waste concrete are effectively removed. The system is energy-saving and environmental friendly.
Description
Technical field
The present invention relates to waste and old concrete reprocessing technical field, be specifically related to a kind of waste and old concrete regeneration application system.
Background technology
Waste material of buildings is also called building waste, refers to that construction, all kinds of buildingss of unit in charge of construction or individual team, structures, pipe network etc. are built, laid or remove, dregs, spoir, rejected material, remaining mud and other wastes of producing to obtain in repairerment process.Main component is concrete, lime, sandstone, dregs etc., does not have the problem of " secondary pollution ", is relatively beneficial to processing; But the adhesive for building in building waste, coating, paint are not only and are difficult to biodegradable macromolecule polymer material, also contain harmful heavy metal element.If these wastes are dealt with the life that can directly jeopardize periphery resident improperly.
At present, the quantity of China's building waste has accounted for the 30%-40% of municipal wastes total amount.Standard with 500-600 ton/ten thousand square metre calculates, to the year two thousand twenty, China also will increase approximately 30,000,000,000 square metres of floor area of building newly, and the new building waste producing will be a shocking numeral.But, overwhelming majority building waste is without any processing, just transported to countryside or rural area by unit in charge of construction, air storage or landfill, consume the pork barrels such as a large amount of land acquisitions takes, refuse collection expense, meanwhile, clear with stacking process in drop that problem has caused again serious environmental pollution with dust, sand-lime fly upward etc.Also cause in addition the waste of resource.How to process and discharge building waste, become a difficult problem that enterprise in charge of construction and environmental protection department face.
Many wastes in building waste are after sorting, rejecting or pulverize, mostly can be used as renewable resource re-use as: the metals such as steel scrap muscle, waste iron wire, waste electric wire and various steel scrap accessories, after sorting, concentrate, again melting down, can reprocess the steel that manufacture all size; Useless bamboo timber can be for the manufacture of imitation wood; The waste materials such as brick, stone, concrete after crushed, can be for sand, for masonry mortar, motar, beat concrete cushion etc., can also be used for making the building material mades such as building block, Paving bricks, lattice brick.
According to investigation, the developed country or region building castoff rate of recovery is higher, generally can reach 50%, even can reach 80%(as Hong Kong).Recycle in order actively to support building castoff, various countries have worked out a series of laws and regulations, policy regulations in succession: Japan " regeneration aggregate and regenerated aggregate concrete operating specification ", " the resource re-using promotion law " of 1991 of 1977, require not discharge from working-yard as far as possible building waste, building waste will re-use as far as possible, is suitably processed for re-using is inconvenient; Government of Holland wishes building castoff cyclic utilization rate to be increased to 90% by current 70%, and government, by legislation, sets up the quality control system of toppling over processings, forced recirculation utilization of restriction waste; Regeneration concrete is mainly used in highway engineering in Germany, German Steel Concrete council's proposition " adopting the application guide of regeneration aggregate in concrete " in 1998, and a double-deck highway of German Lower Saxong has adopted regenerated aggregate concrete.
China has passed through " treatment of Municipal Solid Waste method " November nineteen ninety-five, and the domestic current building castoff mainly approach of dissolving is: removal → transport → transfer place, transport again → backfill or transport → landfill disposal site; Building castoff main application is: backfill absolute altitude, reclaim land from the sea, Piled Mountain Landscape on Construction.Building castoff recovery utilization rate is lower, and the overwhelming majority is just transported outward by construction unit without any punishment, adopts the mode processing of air storage or natural landfill, takies a large amount of soils and needs to pay the expenses such as land acquisition, refuse collection; Meanwhile, dust, the dust and sand of building castoff clearing, in stacking process such as flies upward at the serious environment pollution again.In recent years, the Chinese government starts building castoff recycle to pay much attention to, some building enterprises on the ground such as Shanghai, Wuhan were also once making some Beneficials aspect building castoff recycling, but at present at home building castoff also fail to reach industrialization.
Declare statistics according to building castoff and engineering dregs, reinforcing bar and concrete isolation technique when buildings disintegrates at present, the isolation technique of original aggregate and hardened sand lumps in the concrete after fragmentation.If former concrete intensity is higher, aggregate wherein and cement sand lumps can be simultaneously broken as regeneration aggregate.Regeneration aggregate substitution rate is controlled at below 30%, and concrete performance does not obviously reduce.How to improve the performance of regenerated aggregate concrete, need further research.
In existing road engineering test, first be that the discarded concrete shipping is carried out to fragmentation, then by the concrete of size fractionated mixture in proportion soon, add lime, flyash and specialist additive, produce " two grey calculus ", can meet the demand of road capacity with this material as road " basic unit " completely.
So, utilize discarded concrete to be applied to road construction and there are very large potentiality.
Summary of the invention
The object of this invention is to provide a kind of waste and old concrete regeneration application system, effectively removed the metallics of waste and old concrete doping, energy-conserving and environment-protective.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of waste and old concrete regeneration application system, wherein, comprise the big material bin connecting successively, vibration feeder, jaw crusher, described jaw crusher bottom connects the first rotary conveyor, directly over described the first rotary conveyor, hang a permanent-magnetic iron expeller with high-intensity magnetic field intensity, described system also comprises the fine crusher connecting successively, the second rotary conveyor and vibratory screening apparatus, described fine crusher is connected with described the first rotary conveyor, described vibratory screening apparatus is respectively by the 3rd rotary conveyor, the 4th rotary conveyor, the 5th rotary conveyor, the 6th rotary conveyor connects finished product stock ground.
Above-mentioned waste and old concrete regeneration application system, wherein, reinforcing bar in waste and old concrete is taken out, control described reinforcing bar particle diameter in 800 millimeters, then send into described big material bin, from material out of described big material bin through described vibration feeder continuous uniform send into described jaw crusher and carry out the thick broken work of waste and old concrete, the described waste and old concrete material particle diameter after fragmentation is below 100 millimeters; Waste and old concrete material after described tramp iron separator filters, enters described fine crusher and carries out fine crushing operation, and the discharge gate particle diameter of controlling described type fine disintegrating machine is controlled at below 40 millimeters from its particle diameter of material of discharging in described type fine disintegrating machine; Waste and old concrete after described fine crusher machines is sent into described vibratory screening apparatus with described the second rotary conveyor.
Above-mentioned waste and old concrete regeneration application system, wherein, waste and old concrete is through after crushing operation, by described vibratory screening apparatus, it is screened, meet the material that uses specification and send into described finished product stock ground by described the 4th rotary conveyor, described the 5th rotary conveyor, described the 6th rotary conveyor and unify to stack; Described the 3rd rotary conveyor of material falling short of specifications after out from described fine crusher is returned to described fine crusher and is formed the circulation crushing system of a sealing.
Above-mentioned waste and old concrete regeneration application system, wherein, also comprises a fly-ash separator, and described fly-ash separator is connected with the power supply of described system utilization.
Above-mentioned waste and old concrete regeneration application system, wherein, the magneticstrength of described permanent-magnetic iron expeller is 10,000 Gausses.
Compared with prior art, advantage of the present invention and beneficial effect are embodied in:
A) waste and old concrete has obtained effective processing;
B) metallics (steel scrap silk, waste iron wire) of waste and old concrete doping, has obtained effective removing;
C) energy-conserving and environment-protective, the dust that production line produces in the course of processing, has obtained effective collection;
D) now make profits by system with this cover waste and old concrete, the concrete material processing, mainly contains following purposes:
Building aspect: can replace sand to be used for thoroughly building mortar, motar, beating concrete cushion through native system processing waste and old concrete later;
Building materials aspect: through native system processing waste and old coagulation later, can make building block, Paving bricks, lattice brick.
Brief description of the drawings
Fig. 1 is according to specific embodiment of the present invention, the system architecture schematic diagram of waste and old concrete regeneration application system.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
Please refer to shown in Fig. 1, waste and old concrete regeneration application system of the present invention mainly comprises the big material bin 1 connecting successively, vibration feeder 2, jaw crusher 3, jaw crusher 3 bottoms meet the first rotary conveyor B1, directly over the first rotary conveyor B1, hang a permanent-magnetic iron expeller 4 with high-intensity magnetic field intensity, system of the present invention also comprises the fine crusher 5 connecting successively, the second rotary conveyor B2 and vibratory screening apparatus 6, fine crusher 5 is connected with the first rotary conveyor B1, vibratory screening apparatus 6 is respectively by the 3rd rotary conveyor B3, the 4th rotary conveyor B4, the 5th rotary conveyor B5, the 6th rotary conveyor B6 connects finished product stock ground.
The concrete regenerating that native system is realized utilizes method mainly to comprise the following steps:
1, fragmentation: first the reinforcing bar in waste and old concrete is taken out, control its particle diameter in 800 millimeters.Then send into big material bin 1, from material out of big material bin 1 through vibration feeder 2 continuous uniforms send into jaw crusher 3, carry out the thick broken work of waste and old concrete.It is broken that jaw crusher 3 is commonly called as Hubei Province, forms crusher chamber by moving Hubei Province and two jaws of quiet jaw, two jaw movements of simulated animal and complete the crusher of material crushing operation, and the high compressive strength of the material that is broken is 320Mpa.
Waste and old concrete material particle diameter after fragmentation is below 100 millimeters.Jaw crusher 3 bottoms meet the first rotary conveyor B1, directly over transfer roller B1, hang the permanent-magnetic iron expeller 4 of a magneticstrength in 10,000 Gauss left and right, the effect of permanent-magnetic iron expeller 4 is further to remove the metallics not being eliminated in waste and old concrete, to avoid metallics to enter in lower road disintegrating apparatus, crusher is caused damage.Waste and old concrete material after permanent-magnetic iron expeller 4 filters, enters fine crusher 5 and carries out fine crushing operation.The discharge gate particle diameter of controlling fine crusher 5 is controlled at below 40 millimeters from its particle diameter of material of fine crusher 5 interior discharges, and wherein the material below 0-30 millimeter accounts for 90%.Waste and old concrete after fine crusher 5 machines is sent into vibratory screening apparatus with the second rotary conveyor B2.
2, the screening of finished product material: waste and old concrete, through after crushing operation, screens it by vibratory screening apparatus 6.Meeting the material that uses specification sends into finished product stock ground by the 4th rotary conveyor B4, the 5th rotary conveyor B5 and the 6th rotary conveyor B6 and unifies to stack.To from fine crusher 5 out after, the material (material that particle diameter ratio is larger, the material that cannot use) falling short of specifications, returns to fine crusher with the 3rd rotary conveyor B3 and forms the circulation crushing system of a sealing.
3, Environmental-protecting dust-removing: because the major ingredient of waste and old concrete is that sandstone, dregs, its Mohs' hardness of cement are lower, excessively carrying out in the process of crushing operation through jaw crusher 3, the broken machine 5 of High Efficiency Superfine, easily become powder, the content of powder is excessive, in air, cause airborne dust, near broken on-the-spot environment.For fear of the environment to around, in whole shattering process, control air with fly-ash separator 7 in the content of dust, just it reaches national environmental impact assessment standard.Fly-ash separator is connected with system power supply.
The invention enables waste and old concrete to obtain effective processing, effectively removed the metallics of waste and old concrete doping, energy-conserving and environment-protective.
The foregoing is only preferred embodiment of the present invention, not thereby limit claim of the present invention, so the equivalent structure that all utilizations specification sheets of the present invention and diagramatic content have been done changes, be all included in protection scope of the present invention.
Claims (5)
1. a waste and old concrete regeneration application system, it is characterized in that, comprise the big material bin connecting successively, vibration feeder, jaw crusher, described jaw crusher bottom connects the first rotary conveyor, directly over described the first rotary conveyor, hang a permanent-magnetic iron expeller with high-intensity magnetic field intensity, described system also comprises the fine crusher connecting successively, the second rotary conveyor and vibratory screening apparatus, described fine crusher is connected with described the first rotary conveyor, described vibratory screening apparatus is respectively by the 3rd rotary conveyor, the 4th rotary conveyor, the 5th rotary conveyor, the 6th rotary conveyor connects finished product stock ground.
2. waste and old concrete regeneration application system as claimed in claim 1, it is characterized in that, reinforcing bar in waste and old concrete is taken out, control described reinforcing bar particle diameter in 800 millimeters, then send into described big material bin, from material out of described big material bin through described vibration feeder continuous uniform send into described jaw crusher and carry out the thick broken work of waste and old concrete, the described waste and old concrete material particle diameter after fragmentation is below 100 millimeters; Waste and old concrete material after described tramp iron separator filters, enters described fine crusher and carries out fine crushing operation, and the discharge gate particle diameter of controlling described type fine disintegrating machine is controlled at below 40 millimeters from its particle diameter of material of discharging in described type fine disintegrating machine; Waste and old concrete after described fine crusher machines is sent into described vibratory screening apparatus with described the second rotary conveyor.
3. waste and old concrete regeneration application system as claimed in claim 2, it is characterized in that, waste and old concrete is through after crushing operation, by described vibratory screening apparatus, it is screened, meet the material that uses specification and send into described finished product stock ground by described the 4th rotary conveyor, described the 5th rotary conveyor, described the 6th rotary conveyor and unify to stack; Described the 3rd rotary conveyor of material falling short of specifications after out from described fine crusher is returned to described fine crusher and is formed the circulation crushing system of a sealing.
4. waste and old concrete regeneration application system as described in any one in claims 1 to 3, is characterized in that, also comprises a fly-ash separator, and described fly-ash separator is connected with the power supply of described system utilization.
5. waste and old concrete regeneration application system as claimed in claim 1, is characterized in that, the magneticstrength of described permanent-magnetic iron expeller is 10,000 Gausses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023931.9A CN103936316A (en) | 2013-01-23 | 2013-01-23 | Waste-concrete regeneration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023931.9A CN103936316A (en) | 2013-01-23 | 2013-01-23 | Waste-concrete regeneration system |
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| CN103936316A true CN103936316A (en) | 2014-07-23 |
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| CN201310023931.9A Pending CN103936316A (en) | 2013-01-23 | 2013-01-23 | Waste-concrete regeneration system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111686907A (en) * | 2020-06-10 | 2020-09-22 | 中铁物总资源科技有限公司 | Rail-mounted railway waste sleeper collection and disposal process, integrated intelligent equipment and use method thereof |
| CN111792864A (en) * | 2020-03-30 | 2020-10-20 | 桂林鸿程矿山设备制造有限责任公司 | Recovery processing method and system for waste concrete |
| CN114560654A (en) * | 2022-04-13 | 2022-05-31 | 临沂蓝泰环保科技有限公司 | Application of brick-concrete recycled fine aggregate in lightweight aggregate concrete and mixing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913788A (en) * | 2010-07-07 | 2010-12-15 | 云南省建筑科学研究院 | Method for comprehensively treating construction waste |
| CN102838307A (en) * | 2012-08-27 | 2012-12-26 | 首钢总公司 | Method and system for treating construction waste |
-
2013
- 2013-01-23 CN CN201310023931.9A patent/CN103936316A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913788A (en) * | 2010-07-07 | 2010-12-15 | 云南省建筑科学研究院 | Method for comprehensively treating construction waste |
| CN102838307A (en) * | 2012-08-27 | 2012-12-26 | 首钢总公司 | Method and system for treating construction waste |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792864A (en) * | 2020-03-30 | 2020-10-20 | 桂林鸿程矿山设备制造有限责任公司 | Recovery processing method and system for waste concrete |
| CN111686907A (en) * | 2020-06-10 | 2020-09-22 | 中铁物总资源科技有限公司 | Rail-mounted railway waste sleeper collection and disposal process, integrated intelligent equipment and use method thereof |
| CN111686907B (en) * | 2020-06-10 | 2021-05-11 | 中铁物总资源科技有限公司 | Rail-mounted railway waste sleeper collection and disposal process, integrated intelligent equipment and use method thereof |
| CN114560654A (en) * | 2022-04-13 | 2022-05-31 | 临沂蓝泰环保科技有限公司 | Application of brick-concrete recycled fine aggregate in lightweight aggregate concrete and mixing method |
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Application publication date: 20140723 |
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