CN101913788A - Method for comprehensively treating construction waste - Google Patents
Method for comprehensively treating construction waste Download PDFInfo
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- CN101913788A CN101913788A CN2010102192633A CN201010219263A CN101913788A CN 101913788 A CN101913788 A CN 101913788A CN 2010102192633 A CN2010102192633 A CN 2010102192633A CN 201010219263 A CN201010219263 A CN 201010219263A CN 101913788 A CN101913788 A CN 101913788A
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- Prior art keywords
- building waste
- waste
- construction waste
- building
- broken
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- OSVXSBDYLRYLIG-UHFFFAOYSA-N Chlorine dioxide Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 6
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Classifications
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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
Abstract
The invention relates to a method for comprehensively treating construction waste, which comprises the following steps of: 1. disinfecting the construction waste to be treated by adopting a chlorine dioxide disinfectant; 2. loading the construction waste obtained from the step 1 to a hopper and conveying to a sorting platform to sort out impurities; 3. feeding the sorted construction waste to an edge-type crusher through a plate feeder to crush initially; 4. feeding the initially crushed construction waste to a hopper of an impact crusher after magnetic separation by a magnetic separator and crushing the construction waste finally by the impact crusher; 5. screening and peeling out sandstone materials from concrete and feeding the sandstone materials after being washed by a washer to a coarse aggregate bin, wherein the aggregate separated from the washed fine powder washed is used as raw materials of dry mortar or ready mixed mortar or three-hole brick of concrete. The invention ensures that the construction waste resources are utilized comprehensively, and the ordering management, the resource management and the harmless treatment of the construction waste are achieved, thereby achieving the purposes of saving land and reducing secondary pollution.
Description
One, technical field
The present invention relates to a kind of to the building waste treatment process, especially a kind of building waste is carried out comprehensive treating process after, the treatment process that it can be utilized once more.
Two, background technology
Fast development along with urban construction, rebuild in the process of removing and brought a large amount of building wastes, they can be divided into according to the source: old building is removed rubbish, construction site rubbish, decorations rubbish and building materials are produced rubbish, these building wastes are mainly by dregs, the sandstone piece, waste mortar, broken concrete, composition such as waste and old wood and discarded finishing material, wherein the part building waste can be used as renewable resource and utilizes again, as: scrap metal can melt down the steel that are processed into all size again, waste and old wood can be used to make various artificial boards etc., but remove the brickbat that old building brings, waste materials such as concrete blocks but well do not utilize means at present, such building waste is mainly adopted the processing mode of landfill both at home and abroad, this is easy to cause the secondary pollution and the wasting of resources of ecotope.
With Kunming is example, quickening along with Kunming urban construction process, drive the development of surrounding cities group and town development, the building wastes such as waste that the waste material in housing demolition, construction site, building materials are produced also produce thereupon in a large number, the phenomenon that increasing building waste is arbitrarily banked up, discharged is more and more serious, and the managerial problem of building waste also highlights day by day.According to city's environmental sanitation department statistics, the Kunming is produced building waste at present per year and is surpassed 3,000,000 tons, about 8000 tons of every days.It is reported, at present, incity, Kunming building waste does not have fixed discharging place, the discharging principle mainly is according to the supply and demand condition, building waste is discharged into the place that needs the local of backfill or be discharged into the suburb, the building waste of these unprocessed direct dischargings has brought very big harm to urban environment, and green belt, river, water channel, vacant lot even the highway of periphery all repeatedly suffer the infringement of building waste.Undressed building waste is as backfill soil, directly caused secondary pollution, be later urban afforestation, also brought hidden danger, building waste has become the killer of green vegetation, the unordered discharging of building waste not only causes the pollution that ecotope is on the rise, and has also wasted a large amount of non-renewable resources.
Three, summary of the invention
Goal of the invention: the invention provides a kind of method of building waste being carried out comprehensive treating process, its objective is that solution does not have the good treatment recoverying and utilizing method to building wastes such as dregs, broken brick and tile, sandstone piece, waste mortar, broken concretes at present, undressed building waste is as backfill soil, cause the pollution that ecotope is on the rise, also wasted a large amount of aspects such as Nonrenewable resources existing problems.
Technical scheme: the present invention is achieved through the following technical solutions:
1, a kind of method that building waste is carried out comprehensive treating process is characterized in that it adopts following step to carry out:
A, adopt disinfection agent of chlorine dioxide to carry out drug disinfection pending building waste;
B, the building waste that step a the is obtained hopper of packing into is transported to the letter sorting platform, sorts out foreign material;
Building waste after c, the process letter sorting is sent into jaw crusher through apron feeder, carries out broken separation just;
D, first building waste after broken are sent into the impact breaker hopper after the magnetic separator magnetic separation is with the irony sorting substances, it is broken to carry out end through impact breaker;
E, the building waste after eventually broken by the sieve apparatus screening separate the rubble of the 10-30mm in the concrete or cobble coarse aggregate, 2-10mm brickbat, watt, the sandstone fine aggregate; Send into wet washer then respectively, after the wet washer washing, send into rough set feed bin and fine aggregate storehouse; Isolated fine powder material is isolated building sand and earth after washing, they can be used as the starting material of producing material of construction once more.
Adopt artificial among the step b or the intelligent sorting machine sorts, the foreign material of letter sorting are waste wood plate, carton and waste paper, useless paint can and materials such as plastic sheet, waste gypsum plate.
Among the step c through the particle diameter of the just broken building waste fragment of jaw crusher below 10cm.
Adopt impact breaker in the steps d, utilize hardness ratio, the building stones that hardness is different, broken brick and tile sandstone material separate fragmentation, supply the sieve apparatus sorting then.
Step e gained fine aggregate send into behind the feed bin with adulterant, cement mix with water stir after, make concrete three-hole brick finished product by concrete three-hole brick shaper.
Surplus materials among the step e after the washing after thickner concentrates as the raw material of sintered decorative brick; Sand is as the raw material of dry-mix or premixing mortar.
Advantage of the present invention and effect: by the enforcement of technical solution of the present invention, can solve well at present building wastes such as dregs, broken brick and tile, sandstone piece, waste mortar, broken concrete are not had the good treatment recoverying and utilizing method, undressed building waste is as backfill soil, cause the pollution that ecotope is on the rise, also wasted a large amount of aspects such as Nonrenewable resources existing problems.Treatment process of the present invention can fully utilize processing to the building waste resource, and main raw material, the concrete three-hole brick that the product that obtains after treatment can be used as concrete coarse aggregate, dry-mix or premixing mortar in the building gathers materials and decorate the raw material of clay brick.So not only make building waste management ordering, utilize resource utilization, handle innoxious, also saved a large amount of soils, final is the modernization service, meet the call of carrying out resources conservation, building a conservation-minded society that the Party Central Committee, State Council propose, guaranteed the requirement of Sustainable development.The concrete three-hole brick of the fine aggregate preparation that the inventive method obtains is compared with concrete small size hollow building block, has following advantage:
1. block little (physical dimension is identical with the sintered clay perforated brick), drying shrinkage is low, has solved the big problem of swell-shrinking deformation that block brings greatly;
2. the concrete three-hole brick is not a through hole, and its top is provided with the thin top of spill, is convenient to lay masonry mortar, and it is full to build mortar joint by laying bricks or stones, effectively raises the slip resistance of body of wall, and masonry quality is reliable;
3. the material property characteristics that kept clay brick have improved the impervious ability of body of wall;
4. applied range can use by the instead of clay brick in bearing wall; Do not change existing design modulus.Kept traditional constructional method of China and constructional method, helped applying.
Among the preparation method of the present invention through broken, ' can replace sandstone to gather materials after the screening, also can make building material product such as walling etc.Compare with other municipal wastes, but the big high characteristics of resource utilization rate of the building waste amount of having.It is broken that the present invention adopts impact breaker to carry out end, can guarantee the antiquated sand building stones that hardness is different in broken back eventually directly separately, and the processing of the step operation of using the lavatory has improved processing efficiency greatly.
Description of drawings
Fig. 1 is process flow figure of the present invention.
Four, embodiment
Below in conjunction with accompanying drawing specific implementation process of the present invention is described in detail as follows:
Embodiment 1: as shown in Figure 1, treatment process of the present invention is as follows, building waste is transported in the factory by dump truck, pour building waste into and stack the field, superhuge block Mechanical Crushing, after medicine disinfection by chlorine dioxide (also can select for use similar harmless sterilizing agent to carry out disinfection) agent sterilization with the shovel loader hopper of packing into, deliver to the letter sorting platform, adopt artificial or intelligent sorting machine, sort out the waste wood plate, carton and waste paper, useless paint can and plastic sheet, materials such as waste gypsum plate (material that sorts out carries out manipulation of regeneration respectively), building waste through letter sorting is sent into stunned formula crusher by apron feeder, carry out broken separation just, building waste after just broken is selected irony material (sending into iron work is giving birth to) through magnetic separator part, building waste fragment after magnetic separation is sent into the impact breaker hopper, after impact breaker carries out broken separation at end, the sandstone that is separated in the concrete by the sieve apparatus screening gathers materials, send into wet washer, send into the rough set feed bin after washing, the recycled coarse aggregate that obtains can be used as commodity and sells; Isolated fine aggregate is sent into feed bin after washing, can produce concrete three holes with this fine aggregate; Remaining powder sub-argument after washing goes out building sand, and this product can be used as the raw material of dry-mix or premixing mortar; Surplus materials after the washing (earth) after thickner concentrates, use it for anything else in addition (raw material that can be used as sintered decorative brick); Various products are sent into feed bin respectively after reaching standard by design requirements.Through above-mentioned processing, can make the comprehensive utilization ratio of building waste reach 100%.
Produce the concrete three-hole brick with building waste, why the basic performance tests of doing through Yunnan Institute of Building Research proves that the ultimate compression strength of this concrete three-hole brick masonry is suitable with concrete small block, is higher than sintered clay brick 45%; Slip resistance not only is much higher than concrete small block, but also is higher than sintered clay brick 61%.Make the raw-material scope of application more extensive.This makes technology, the method for using building waste production construction material more feasible.The concrete three-hole brick is the ideal material of instead of clay brick; It is the desirable approach that improves the building waste comprehensive utilization ratio.
Treatment process of the present invention can be handled building waste and accomplish good harmless treatment, saves a large amount of soils.China be one populous and lack the country of land resources, 1.3 mu of per capita area of cultivated farmland less thaies.Along with the development of China's modernization, building materials production has consumed a large amount of land resources.Only fire clay brick and just destroy more than 50 ten thousand mu of land resourcess an every year; It is surprising especially to the destruction in vegetation, river etc. to gather sandstone.For this reason; the experts and scholars of State Council, National Development and Reform Committee and leader of the Ministry of Construction and each side; for national economy develops sustainedly and stably; benefit the descendants; realize recycling of waste resources, repeatedly propose to develop building material, do wall reform well; replace clay brick, protection China's limited land resources and ecotope.Can produce multiple material of construction, 4.5 ten thousand m after utilizing the present invention that building waste is handled
3Freestone can be saved the area 22 mu; 60,000 m
3Build with the mortar raw material and can save the area 30 mu; 200,000 m
3The concrete three-hole brick can be saved the area 80 mu.In sum, the annual building waste 30m that handles
3Can save 132 mu in soil.
The dust that produces when in the invention process process building waste being loaded and unloaded, the control emphasis is collected dusty gas as much as possible based on airtight operation, negative pressure operation, is filtered then, reaches the purpose of emission abatement.Still to be filtered into main means of prevention, utilize collision, the comprehensive purifying effect with first filter layer of holding back reaches high efficiency and gather dust for the dust disposal of stirring station, material outlet one class.Adopt the airtight operation of segmentation, negative pressure operation as much as possible, strive building up the factory of cleaning with the raw material of cleaning, the method for cleaning.
Processing to noise: the noise that crusher, sieve apparatus produce can reach 95～100dB (A), and these equipment all concentrate on building waste and handle the interior fixed position of factory building, are mechanicalness noise and aerodynamic noise.We take the method in the airtight crushing and screening of segmentation workshop, reduce noise magnitude, reach factory's circle noise strength standard.
Processing to waste water: can not produce industrial sewage in the inventive method production process.The waste water of discharging precipitates through three grades of water collecting basins, can be recycled after the collection, and the waste water of water collecting basin post precipitation can reach the emission request of " national sewage comprehensive emission standard ", can not constitute the pollution to water surrounding.
Claims (6)
1. method that building waste is carried out comprehensive treating process is characterized in that it adopts following step to carry out:
A, adopt disinfection agent of chlorine dioxide to carry out drug disinfection pending building waste;
B, the building waste that step a the is obtained hopper of packing into is transported to the letter sorting platform, sorts out foreign material;
Building waste after c, the process letter sorting is sent into jaw crusher through apron feeder, carries out broken separation just;
D, first building waste after broken are sent into the impact breaker hopper after the magnetic separator magnetic separation is with the irony sorting substances, it is broken to carry out end through impact breaker;
E, the building waste after eventually broken by the sieve apparatus screening separate the rubble of the 10-30mm in the concrete or cobble coarse aggregate, 2-10mm brickbat, watt, the sandstone fine aggregate; Send into wet washer then respectively, after the wet washer washing, send into rough set feed bin and fine aggregate storehouse; Isolated fine powder material is isolated building sand and earth after washing, they can be used as the starting material of producing material of construction once more.
2. a kind of method that building waste is carried out comprehensive treating process according to claim 1 is characterized in that: adopt artificial among the step b or the intelligent sorting machine sorts waste wood plate, carton and waste paper, useless paint can and plastic sheet, waste gypsum plate.
3. a kind of method that building waste is carried out comprehensive treating process according to claim 1 is characterized in that: among the step c through the just broken building waste fragment particle diameter of jaw crusher below 10cm.
4. a kind of method of building waste being carried out comprehensive treating process according to claim 1, it is characterized in that: adopt impact breaker in the steps d, utilize hardness ratio, the building stones that hardness is different, broken brick and tile sandstone material separate fragmentation, supply the sieve apparatus sorting then.
5. a kind of method of building waste being carried out comprehensive treating process according to claim 1, its feature one in: after step e gained fine aggregate is sent into feed bin with adulterant, cement mix with water stir after, make concrete three-hole brick finished product by concrete three-hole brick shaper.
6. a kind of method that building waste is carried out comprehensive treating process according to claim 1 is characterized in that: the surplus materials among the step e after the washing after thickner concentrates as the raw material of sintered decorative brick; Sand is as the raw material of dry-mix or premixing mortar.
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| CN2010102192633A CN101913788A (en) | 2010-07-07 | 2010-07-07 | Method for comprehensively treating construction waste |
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| CN102989747A (en) * | 2011-12-21 | 2013-03-27 | 何德裕 | Solid construction waste processing and treating system |
| CN103130465A (en) * | 2013-03-05 | 2013-06-05 | 北京新奥混凝土集团有限公司 | LC10 haydite concrete prepared from reclaimed sand and preparation method thereof |
| CN103496895A (en) * | 2013-09-18 | 2014-01-08 | 桑德环境资源股份有限公司 | Method for producing baking-free bricks by utilizing solid waste |
| CN103936316A (en) * | 2013-01-23 | 2014-07-23 | 上海山卓重工机械有限公司 | Waste-concrete regeneration system |
| CN104511472A (en) * | 2013-10-08 | 2015-04-15 | 中国建筑第四工程局有限公司 | On-site recycle method of construction waste |
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| CN103936316A (en) * | 2013-01-23 | 2014-07-23 | 上海山卓重工机械有限公司 | Waste-concrete regeneration system |
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| CN104511472A (en) * | 2013-10-08 | 2015-04-15 | 中国建筑第四工程局有限公司 | On-site recycle method of construction waste |
| CN106140778A (en) * | 2015-04-08 | 2016-11-23 | 北京神州蓝天新型环保建材有限公司 | Rubbish integrated process in construction site is dissolved method |
| CN106890842B (en) * | 2017-03-08 | 2018-10-09 | 黄河科技学院 | A method of integrated treatment is carried out to building waste material |
| CN106890842A (en) * | 2017-03-08 | 2017-06-27 | 黄河科技学院 | A kind of method that integrated treatment is carried out to building waste material |
| CN107694738A (en) * | 2017-08-22 | 2018-02-16 | 广东中态绿城建筑淤泥渣土实业有限公司 | A kind of construction waste recoverying and utilizing method |
| CN108855587A (en) * | 2018-04-24 | 2018-11-23 | 浙江双金机械集团股份有限公司 | A kind of building waste method for screening and separating |
| CN109061046A (en) * | 2018-06-12 | 2018-12-21 | 上海环境卫生工程设计院有限公司 | A method of detection building waste composition |
| CN108787148A (en) * | 2018-06-26 | 2018-11-13 | 四川元丰建设项目管理有限公司 | Method for comprehensive treatment of construction refuse |
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