CN101543828A - Method for producing concrete construction materials by using construction waste - Google Patents
Method for producing concrete construction materials by using construction waste Download PDFInfo
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- CN101543828A CN101543828A CN200910020628A CN200910020628A CN101543828A CN 101543828 A CN101543828 A CN 101543828A CN 200910020628 A CN200910020628 A CN 200910020628A CN 200910020628 A CN200910020628 A CN 200910020628A CN 101543828 A CN101543828 A CN 101543828A
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- building material
- building waste
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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
- Y02W30/20—Waste processing or separation
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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
- Y02W30/58—Construction or demolition [C&D] waste
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Abstract
The invention discloses a method for producing concrete construction materials by using construction waste, comprising the following steps: using the construction waste to produce renewable aggregate, material mixture, stirring, formation, maintenance and stacking. Through the steps, the construction waste can be recycled, and the use of the construction waste to produce the concrete construction materials not only is beneficial to utilizing the construction waste as a resource but also saves the land and protects the environment.
Description
Technical field
The present invention relates to the processing method of building waste in a kind of city, relate in particular to a kind of method of making concrete building material with building waste.
Background technology
The main component of building waste is concrete, brick, sandstone, dregs etc., along with the carrying out of urban construction, puts newly built construction, reconstruction of the old city town removal, road rebuilding etc. into operation, all unavoidably can produce a large amount of building wastes.At present, the quantity of building waste has accounted for 30%-40% of municipal refuse total amount, overwhelming majority building waste is without any processing, just the field is toppled in countryside or the rural area that is transported to relevant department's appointment by unit in charge of construction, disposal is air storage or landfill, this should consume a large amount of land resource, clear simultaneously with stacking process in drop with problems such as dust, sand-lime fly upward and caused the serious environmental pollution again.Along with protecting farmland and the reinforcement of environmental protection, the processing mode of traditional building waste has become the major issue that enterprise in charge of construction and environmental administration face jointly.
At present also do not have the special disposal building waste and with its method that is recycled, the existing mode of handling building waste need take a large amount of soils, not only cause the land resource waste, be unfavorable for the recycling of building waste yet, and cause secondary pollution easily.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of making concrete building material with building waste; building waste can be recycled by this method; the recycling that not only helps building waste, and save the soil, the protection environment.
The method that the present invention makes construction material on the coagulation with building waste realizes by following steps:
A, make regeneration aggregate with building waste;
B, batching after described regeneration aggregate and corresponding sand, cement and admixture metering, are transported in the mixer;
C, stirring in described mixer, fully stir into water-bearing concreae with water and described regeneration aggregate, sand, cement and admixture;
D, moulding with described water-bearing concreae vibration moulding, are made the concrete building material base by make-up machine;
E, maintenance are delivered to described concrete building material base and are carried out steam curing in the curing kilns, and through maintenance, described concrete building material base becomes concrete building material;
F, piling are stacked.
Wherein, the steam-cured time is 12 ~ 24 hours in the described e step, and curing temperature is 55 ℃ ~ 75 ℃.
Wherein, the method for making regeneration aggregate with building waste in the above-mentioned a step may further comprise the steps:
1) first screening, described first screening step is by vibratory sieve the fines that contains in the building waste to be separated;
2) feeding, described feeding step are in the building waste feeding disintegrating machine that will utilize after oscillating feeder will screen for the first time;
3) pulverize, described pulverising step is to become to build aggregate mixture by the construction waste crushing of disintegrating machine after with described first screening;
4) carry, described supplying step is that described building aggregate mixture is transported on the multi-stage oscillating screen by conveyer belt;
5) selection, described selection step is that the metal material that will build in the aggregate mixture in course of conveying chooses;
6) postsearch screening, described postsearch screening step are the regeneration aggregates that sieves out various different-grain diameters by described multi-stage oscillating screen from described building aggregate mixture.
After having adopted technique scheme, the beneficial effect that the present invention obtains is: make concrete building material by adopting regeneration aggregate with the mode that sand, cement and admixture mix mutually, thereby realize the comprehensive utilization of building waste.At first adopt advanced automatic batching system in blending process, metering quick and precisely makes water-bearing concreae even through whipping step again, whole process sealing, pollutions such as no airborne dust; Then the water-bearing concreae that stirs is sent into make-up machine vibration moulding and make the concrete building material base, by primary and secondary car transportation system the concrete building material base is delivered to steam curing kiln again and carry out steam curing, at last that maintenance is good concrete building material is transported to warehouse for finished product and stacks after operations such as piling, carry out every routine inspection by standard and put on market after qualified.On the one hand, no any noxious gas emission in manufacture process does not produce secondary pollution by this method, and intensity height after the maintenance of the concrete building material that obtains process, and deviation is little, steady quality; On the other hand,, can fully utilize, and can solve because of building waste and be not recovered problems such as utilizing the environmental pollution produce, land occupation the building waste resource by the enforcement of technical solution of the present invention.
Compare with traditional clay brick by the concrete segment that the inventive method obtains, have following advantage:
1. product load-bearing, insulation, sound insulation, fire prevention, light weight, antidetonation, firm, attractive in appearance.Lightness, energy-conservationization, attractive in appearanceization that helps realizing building, build the high performance modern dwelling house.
2. can save arable land, protection environment, energy savings, raising body of wall heat-proof quality to greatest extent, alleviate the body of wall deadweight, reduce the foundation engineering expense, also can increase usable floor area, improve the building work efficiency, save masonry mortar etc., realize comprehensive utilization of resources.
3. antiacid alkali, ageing-resistant, the later strength sustainable growth.
Moreover, by changing the mould of make-up machine, can also make products such as walling, pavior brick, kerbstone.
Description of drawings
Accompanying drawing is the flow chart of processing method of the present invention.
The specific embodiment
As shown in drawings, building waste of the present invention is to utilize the building waste of main component for producing in demolition of buildings, house decoration and the transformation road.
The method of making concrete building material with building waste mainly comprises formation, batching, stirring, moulding, maintenance and the piling of regeneration aggregate, after dispatch from the factory after the assay was approved.Described concrete building material generally includes various building blocks, concrete solid brick, concrete road pavement brick, concrete road kerb etc.Concrete steps are as follows:
A, make regeneration aggregate with building waste, to required regeneration aggregate, it adopts steps of processing with construction waste crushing:
1) first screening, described first screening step is by the single-stage vibratory sieve fines that contains in the building waste to be separated, this process filters out about 10% the soil that building waste contains, and can prevent stirring up a cloud of dust when fragmentation so on the one hand, the protection environment; Can prevent a large amount of can not entering in the disintegrating machine as the fines of regeneration aggregate on the other hand, thereby reduce the workload of disintegrating machine, energy savings is increased work efficiency.
2) feeding, described feeding step is in the building waste feeding disintegrating machine that will utilize after oscillating feeder will screen for the first time, can guarantee that by oscillating feeder building waste successfully enters in the disintegrating machine, feeding is even, performance is good continuously, and exciting force is adjustable, can change and control flow at any time, easy to operate, thus carrying out smoothly of streamline production guaranteed.
3) pulverize, described pulverising step is to become the building aggregate mixture by the construction waste crushing of disintegrating machine after with described first screening, and the size after the building waste pulverizing is generally less than 40 millimeters; Wherein, the ratio of reduction is big, product granularity is even because jaw crusher has, simple in structure, reliable operation, easy, the running cost economic dispatch characteristics of maintenance, so generally adopt jaw crusher to carry out fragmentation, certainly, also can adopt large-scale broken hammer or hammer mill.In case of necessity, pulverising step can be divided into for two steps, by broken, then the building waste after the fragmentation be crushed to required building aggregate mixture by pulverizer more earlier; Pulverising step can carry out underground, and is by disintegrating machine is placed on underground, prevented to stir up a cloud of dust, and protected environment, and reasonable in design.
4) carry, described supplying step is that described building aggregate mixture is transported on the multi-stage oscillating screen by conveyer belt 4, to realize automated production.
5) selection, described selection step is that the metal material that will build in the aggregate mixture in course of conveying chooses, this step can choose by the metal material that contains in the building aggregate mixture of magnetic separator after with fragmentation and be recycled, not only improve the purity of regeneration aggregate, and prevent the harmful effect of metal material to follow-up equipment, in case of necessity repeatedly magnetic separation can be set, further isolate the metal material that building waste contains.
6) postsearch screening, described postsearch screening step are the regeneration aggregates that sieves out various different-grain diameters by described multi-stage oscillating screen from described building aggregate mixture, so as required can be according to different ratio preparations.
In addition, when the building waste after the fragmentation is carried out postsearch screening, can utilize drencher to carry out dust removal process, prevent stirring up a cloud of dust when screening separates like this, protect environment isolated fine earth.
B, batching, described regeneration aggregate and corresponding sand, cement and admixture controlled the electronics metering in microcomputer after, be transported in the mixer; Wherein, above-mentioned admixture comprises flyash, and the purpose of adding flyash is to save cement and substitute parts of fine to gather materials, and strengthens the workability of product.The adding proportion of various materials is to formulate according to the specific requirement of production product, and this ratio can be determined by technical staff's experiment, not repeat them here.
C, stirring, in described mixer, when stirring, adopt zero degree of collapsing technology usually owing to produce concrete building material, so only need add low amounts of water, the dried stirring of earlier regeneration aggregate, sand, cement and admixture being carried out a few minutes adds the water stirring again, after the agitation as appropriate, the system of mixer can detect the humidity of mixture automatically, if desired, can add a spot of water automatically and stir stirring into water-bearing concreae in five to eight minutes, be convenient in this way mixture is mixed.In addition, as required, additives of pigments also will add simultaneously.
D, moulding, by make-up machine with described water-bearing concreae vibration moulding, make the concrete building material base, wherein, one independently moulding box can the difference by fit on link and produce according to concrete concrete building material shape, by different moulds, building block can be manufactured into multiple shape.When moulding, water-bearing concreae is compacted and reinforces by vibration, and as required, make-up machine uses mould can produce a plurality of standard block simultaneously at every turn.
E, maintenance, described concrete building material base delivered to carry out steam curing in the curing kilns, the required time of concrete building material base steam curing is 12-24 hour, curing temperature is 55 ℃-75 ℃, promptly determine the temperature and time of maintenance by the water content of concrete building material base, under the identical situation of water content, curing temperature is just short more for high more, required curing time.Can shorten curing time by the setting of adjustment mixer and the temperature of curing kilns as required, through maintenance, described concrete building material base becomes concrete building material.
Compare effective production efficiency that improved with traditional natural curing by steam curing, the concrete building material of this method maintenance is compared with traditional solid clay brick, energy savings, reduce harmful gas emission, and do not produce secondary pollution, and through the concrete building material intensity height of maintenance, strength variance is little, steady quality.
F, piling stack, and after the concrete building material base after the moulding came out from steam curing kiln, a part was delivered to the finished product stockyard by stacking machine, and another part is delivered to stacking machine by splitting machine after by method requirement splitting, delivers to the finished product stockyard then.At last, the concrete building material after sign indicating number cut detects, and dispatches from the factory after qualified.
The present invention produces concrete segment with raw materials such as building waste, flyash, cement, sand and replaces traditional clay brick by said method, objectively can play the effect of protecting farmland, protect environment.The present invention has mainly utilized building waste; this method has realized making full use of of resource, has protected environment, and the major pollutants that produced in the production process are dust; after the water curtain dust removal process, can not pollute, and the concrete segment that obtains has following effect environment:
1. lightness, energy-conservationization, attractive in appearanceization that product load-bearing, insulation, sound insulation, fire prevention, light weight, antidetonation, firm, attractive in appearance, the product that obtains by this method help realizing building, build the high performance modern dwelling house.
2. can save arable land, protection environment, energy savings, raising body of wall heat-proof quality to greatest extent, alleviate the body of wall deadweight, reduce the foundation engineering expense, also can increase usable floor area, improve the building work efficiency, save masonry mortar etc., realize comprehensive utilization of resources.
3. antiacid alkali, ageing-resistant, the later strength sustainable growth can prolong the service life of building materials like this, thereby guarantees the safety of building.
In a word, the present invention can make discarded building waste be recycled, when building waste is recycled, at first carrying out necessary explosion and the processing of vibrating with removing, by steps such as once screening, feeding, pulverizing, conveying, selection and postsearch screenings building waste is made into again and can be used for regeneration aggregate for building or the building materials that are used to pave the way, wherein, will once screen 10% the soil that sifts out in the step, also can be used as urban afforestation with soil as the building backfill soil; 90% building waste is pulverized to the regeneration aggregate that differs in size and fine sand are used as concrete material or are used to and is paved the way, all building wastes are removed outside a spot of soil, the comprehensive practical efficiency of building waste is near 100%, prevented secondary pollution like this, protected environment, realize the recycling of urban architecture rubbish, and saved the soil; To slowly raw aggregate and flyash by said method then; cement; raw materials such as sand mix produces concrete building material; in production and use, utilize the inventive method; can not discharge poisonous formaldehyde; volatile organic matter etc.; these materials meet the standard of green building material; can not cause air pollution; guarantee the health of human body; the present invention adopts above-mentioned processing method building waste can be recycled; the recycling that not only helps building waste; save the soil, the protection environment, and can realize automated production; improved the treatment effeciency of building waste, be fit to promote the use of.
Claims (7)
1. make the method for concrete building material with building waste, it is characterized in that, comprise the following steps:
A, make regeneration aggregate with building waste;
B, batching after described regeneration aggregate and corresponding sand, cement and admixture metering, are transported in the mixer;
C, stirring in described mixer, fully stir into water-bearing concreae with water and described regeneration aggregate, sand, cement and admixture;
D, moulding with described water-bearing concreae vibration moulding, are made the concrete building material base by make-up machine;
E, maintenance are delivered to described concrete building material base and are carried out steam curing in the curing kilns, and through maintenance, described concrete building material base becomes concrete building material;
F, piling are stacked.
2. the method with building waste manufacturing concrete building material as claimed in claim 1, it is characterized in that: the steam-cured time is 12 ~ 24 hours in the described e step, curing temperature is 55 ℃ ~ 75 ℃.
3. the method with building waste manufacturing concrete building material as claimed in claim 2, it is characterized in that: the formation of the regeneration aggregate in the described a step may further comprise the steps:
1) first screening, described first screening step is by vibratory sieve the fines that contains in the building waste to be separated;
2) feeding, described feeding step are in the building waste feeding disintegrating machine that will utilize after oscillating feeder will screen for the first time;
3) pulverize, described pulverising step is to become to build aggregate mixture by the construction waste crushing of disintegrating machine after with described first screening;
4) carry, described supplying step is that described building aggregate mixture is transported on the multi-stage oscillating screen by conveyer belt;
5) selection, described selection step is that the metal material that will build in the aggregate mixture in course of conveying chooses;
6) postsearch screening, described postsearch screening step are the regeneration aggregates that sieves out different-grain diameter by described multi-stage oscillating screen from described building aggregate mixture.
4. the method for making concrete building material with building waste as claimed in claim 3, it is characterized in that: described a step also comprises the dust removal process step when screening separates, described dust removal process step is in the postsearch screening process, by spray equipment the dust around the multi-stage oscillating screen is carried out dust removal process.
5. the method with building waste manufacturing concrete building material as claimed in claim 4, it is characterized in that: the admixture in the described b step comprises flyash.
6. the method with building waste manufacturing concrete building material as claimed in claim 5, it is characterized in that: the admixture in the described b step also comprises additives of pigments.
7. the method with building waste manufacturing concrete building material as claimed in claim 6, it is characterized in that: the stirring in the described c step is to do stirring earlier, is adding the stirring of wetting under the condition of water then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910020628A CN101543828A (en) | 2009-04-15 | 2009-04-15 | Method for producing concrete construction materials by using construction waste |
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| CN200910020628A CN101543828A (en) | 2009-04-15 | 2009-04-15 | Method for producing concrete construction materials by using construction waste |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060485A (en) * | 2010-12-02 | 2011-05-18 | 济南大学 | Cement concrete, and preparation method and recycling method thereof |
| CN102826777A (en) * | 2012-09-14 | 2012-12-19 | 济南大学 | Preparation method of recycled aggregate concrete |
| CN103030318A (en) * | 2011-09-30 | 2013-04-10 | 江俊昇 | Method for recycling and reusing stone slab waste |
| CN104108892A (en) * | 2014-06-26 | 2014-10-22 | 杭州富丽华建材有限公司 | Method for producing lightweight partition batten by recycling industrial slag and building garbage |
| CN104446077A (en) * | 2014-11-14 | 2015-03-25 | 中联重科物料输送设备有限公司 | Separation method and separation system of waste concrete and rolling separator |
| CN106734077A (en) * | 2016-12-15 | 2017-05-31 | 王存伟 | Building waste Environmental-protection comprehensive processing system and its processing method |
| CN107268607A (en) * | 2017-06-30 | 2017-10-20 | 衢州熊妮妮计算机科技有限公司 | The concrete-pile prepared using building waste and waste old ceramics |
| CN107298557A (en) * | 2017-06-07 | 2017-10-27 | 重庆聚融建设（集团）股份有限公司 | The concrete production method of building waste and waste water |
| CN109261685A (en) * | 2017-07-17 | 2019-01-25 | 浙江兆联智能科技有限公司 | A kind of processing of city decoration garbage and regeneration technique |
| CN112138759A (en) * | 2020-08-11 | 2020-12-29 | 南昌航空大学 | Renewable concrete building solid waste separation device |
| CN117415942A (en) * | 2023-10-26 | 2024-01-19 | 青岛北洋建筑设计有限公司 | Prefabricated part composed of construction waste and production line thereof |
-
2009
- 2009-04-15 CN CN200910020628A patent/CN101543828A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060485A (en) * | 2010-12-02 | 2011-05-18 | 济南大学 | Cement concrete, and preparation method and recycling method thereof |
| CN103030318A (en) * | 2011-09-30 | 2013-04-10 | 江俊昇 | Method for recycling and reusing stone slab waste |
| CN103030318B (en) * | 2011-09-30 | 2014-09-10 | 江俊昇 | Method for recycling and reusing stone slab waste |
| CN102826777A (en) * | 2012-09-14 | 2012-12-19 | 济南大学 | Preparation method of recycled aggregate concrete |
| CN104108892B (en) * | 2014-06-26 | 2016-05-25 | 杭州富丽华建材有限公司 | A kind of method of producing light partition board with industrial slags and construction refuse regenerated utilization |
| CN104108892A (en) * | 2014-06-26 | 2014-10-22 | 杭州富丽华建材有限公司 | Method for producing lightweight partition batten by recycling industrial slag and building garbage |
| CN104446077A (en) * | 2014-11-14 | 2015-03-25 | 中联重科物料输送设备有限公司 | Separation method and separation system of waste concrete and rolling separator |
| CN104446077B (en) * | 2014-11-14 | 2017-05-17 | 中联重科物料输送设备有限公司 | Separation method and separation system of waste concrete and rolling separator |
| CN106734077A (en) * | 2016-12-15 | 2017-05-31 | 王存伟 | Building waste Environmental-protection comprehensive processing system and its processing method |
| CN107298557A (en) * | 2017-06-07 | 2017-10-27 | 重庆聚融建设（集团）股份有限公司 | The concrete production method of building waste and waste water |
| CN107298557B (en) * | 2017-06-07 | 2019-12-13 | 重庆聚融建设（集团）股份有限公司 | concrete production method of construction waste and wastewater |
| CN107268607A (en) * | 2017-06-30 | 2017-10-20 | 衢州熊妮妮计算机科技有限公司 | The concrete-pile prepared using building waste and waste old ceramics |
| CN109261685A (en) * | 2017-07-17 | 2019-01-25 | 浙江兆联智能科技有限公司 | A kind of processing of city decoration garbage and regeneration technique |
| CN112138759A (en) * | 2020-08-11 | 2020-12-29 | 南昌航空大学 | Renewable concrete building solid waste separation device |
| CN117415942A (en) * | 2023-10-26 | 2024-01-19 | 青岛北洋建筑设计有限公司 | Prefabricated part composed of construction waste and production line thereof |
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Open date: 20090930 |