CN112828002A - A method for recycling construction waste - Google Patents
A method for recycling construction waste Download PDFInfo
- Publication number
- CN112828002A CN112828002A CN201911168485.4A CN201911168485A CN112828002A CN 112828002 A CN112828002 A CN 112828002A CN 201911168485 A CN201911168485 A CN 201911168485A CN 112828002 A CN112828002 A CN 112828002A
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- Prior art keywords
- construction waste
- recycled
- screening
- recycling
- fine aggregate
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- 239000002699 waste material Substances 0.000 title claims abstract description 75
- 238000010276 construction Methods 0.000 title claims abstract description 66
- 238000004064 recycling Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012216 screening Methods 0.000 claims abstract description 40
- 239000002245 particle Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 239000011449 brick Substances 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 238000007885 magnetic separation Methods 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims 2
- 239000002893 slag Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004575 stone Substances 0.000 description 5
- 239000002689 soil Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明提供一种建筑垃圾资源化处理方法，将建筑垃圾按可资源化程度进行分类，在对原料进行加工时，先使用预筛分设备对建筑垃圾进行初级筛选，将剩余的建筑垃圾进行磁选，使用移动颚式破碎机进行初级破碎并风选，筛出建筑垃圾中的轻物质，然后使用移动反击破碎机和振动筛分机对建筑对原料进行最终的破碎筛分，得到可再生四种骨料。在整个生产过程中，分选效果良好，各类型各级别颗粒分离细致，最终的再生产品质量良好，从而实现建筑废弃物的资源化利用。
The invention provides a method for recycling construction waste. The construction waste is classified according to the degree of recyclability. When processing raw materials, pre-screening equipment is used to first screen the construction waste, and the remaining construction waste is subjected to magnetic screening. Select, use mobile jaw crusher for primary crushing and wind sorting, screen out the light substances in construction waste, and then use mobile impact crusher and vibrating screener to perform final crushing and screening of raw materials for buildings, and obtain four types of renewable materials. aggregate. In the whole production process, the sorting effect is good, the separation of various types and grades of particles is meticulous, and the quality of the final recycled products is good, so as to realize the resource utilization of construction waste.
Description
Technical Field
The invention relates to the technical field of building waste recycling, in particular to a recycling treatment method of building waste.
Background
The construction waste refers to residue soil, residual mud, waste soil, waste materials and other wastes generated in the process of building, laying or dismantling various buildings, structures and the like. In recent years, along with the continuous development of urbanization, the production amount of construction waste in China is increased day by day, and the quantity of the construction waste produced in China per year reaches hundreds of millions of tons. If the construction wastes cannot be reasonably and effectively treated and utilized, not only can huge resource waste be caused, but also long-term and large-scale damage can be caused to the ecological environment. But the resource utilization rate of the construction waste at the present stage of China is still less than 10%, the construction waste treatment mode is rough, and the construction waste is basically simple to bury and even randomly stacked. The resource treatment of the construction waste is a production process that different crushing equipment, screening equipment, conveying equipment and equipment for removing impurities are scientifically and reasonably combined together, and the quality of regenerated products is closely related to a recovery process and a treatment method. Therefore, a technical process integrating sorting, crushing, screening and the like, which is economic and environment-friendly and can improve the recycling rate, is needed in the recycling treatment process.
Disclosure of Invention
The invention overcomes the defects in the prior art, provides a construction waste recycling treatment method, has good separation effect, fine separation of particles at all levels, environment-friendly, economical and efficient treatment process, and can realize the recycling of construction waste.
The purpose of the invention is realized by the following technical scheme.
A construction waste recycling method comprises the following steps:
step 1, coarse classification of construction waste: classifying the construction waste according to the recycling degree and separately stacking the construction waste to a raw material bin;
step 2, primary screening of the construction waste: conveying the garbage in the raw material bin into pre-screening equipment, screening out dregs as a regenerated cement stabilizing material, conveying the materials into magnetic separation equipment, and selecting out substances such as waste iron and the like for recycling to obtain building garbage after primary screening;
step 3, primary crushing and secondary screening: carrying out primary crushing on the preliminarily screened construction waste obtained in the step 2 by adopting a movable jaw crusher, and then carrying out air separation on the construction waste to obtain the primarily crushed construction waste;
step 4, secondary crushing and screening: crushing the primarily crushed construction waste obtained in the step 3 again by using a movable impact crusher, and screening by using a vibration screening machine; obtaining screened construction waste;
step 5, preparation of a regenerated product: and 5, manufacturing corresponding renewable resources from the screened construction waste obtained in the step 5.
In the step 1, the construction waste is classified according to the recycling degree, namely the construction waste is classified into a direct utilization type, a recycling and recycling type and a non-recycling type, so that the load and the cost of the subsequent resource treatment of the construction waste are reduced.
In step 2, the scrap iron is screened out and recycled.
In the step 3, the winnowing equipment for the light substances is additionally arranged on the crushing and screening equipment, so that the traditional process for separating the light substances by washing is changed, water resources are saved, and the problem of secondary pollution is solved.
In step 4, after screening by using a vibrating screen machine, screening out two grades and two types of aggregates, namely, recycled brick and stone fine aggregate, recycled brick and stone coarse aggregate, recycled concrete fine aggregate and recycled concrete coarse aggregate.
In step 4, the particle size of the recycled masonry fine aggregate is 0-5mm (excluding 0), and the particle size of the recycled masonry coarse aggregate is 5-25 mm.
In step 4, the particle size of the recycled concrete fine aggregate is 0 to 5mm (excluding 0), and the particle size of the recycled concrete coarse aggregate is 5 to 25 mm.
The recycled brick fine aggregate and the recycled brick coarse aggregate can be used for preparing recycled water stable materials and recycled standard bricks.
The recycled concrete fine aggregate and the recycled concrete coarse aggregate can be used for preparing recycled mortar and recycled concrete.
The invention has the beneficial effects that: the invention adopts a process integrating rough classification, primary screening, primary crushing and secondary screening, secondary crushing and screening and preparation of regenerated products, thereby realizing resource utilization of construction waste. The sorting effect is good, each type of particle is finely separated, and the final regenerated product has good quality.
Drawings
FIG. 1 is a process flow diagram of the process of the present invention.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples.
Example one
A construction waste recycling method comprises the following steps:
step 1, coarse classification of construction waste: classifying the construction waste according to the recycling degree and separately stacking the construction waste to a raw material bin;
step 2, primary screening of the construction waste: conveying the garbage in the raw material bin into pre-screening equipment, screening out dregs as a regenerated cement stabilizing material, conveying the materials into magnetic separation equipment, and selecting out substances such as waste iron and the like for recycling to obtain building garbage after primary screening;
step 3, primary crushing and secondary screening: carrying out primary crushing on the preliminarily screened construction waste obtained in the step 2 by adopting a movable jaw crusher, and then carrying out air separation on the construction waste to obtain the primarily crushed construction waste;
step 4, secondary crushing and screening: crushing the primarily crushed construction waste obtained in the step 3 again by using a movable impact crusher, and screening by using a vibration screening machine; obtaining screened construction waste;
step 5, preparation of a regenerated product: and 5, manufacturing corresponding renewable resources from the screened construction waste obtained in the step 5.
Example two
On the basis of the first embodiment, in the step 1, the construction waste is classified into a direct utilization type, a recycling type and a non-recycling type according to the recycling degree, so that the load and the cost of the subsequent construction waste recycling treatment are reduced.
In step 2, the scrap iron is screened out and recycled.
In the step 3, the winnowing equipment for the light substances is additionally arranged on the crushing and screening equipment, so that the traditional process for separating the light substances by washing is changed, water resources are saved, and the problem of secondary pollution is solved.
In step 4, after screening by using a vibrating screen machine, screening out two grades and two types of aggregates, namely, recycled brick and stone fine aggregate, recycled brick and stone coarse aggregate, recycled concrete fine aggregate and recycled concrete coarse aggregate.
In step 4, the particle size of the recycled masonry fine aggregate is 0-5mm (excluding 0), and the particle size of the recycled masonry coarse aggregate is 5-25 mm.
In step 4, the particle size of the recycled concrete fine aggregate is 0 to 5mm (excluding 0), and the particle size of the recycled concrete coarse aggregate is 5 to 25 mm.
The recycled brick fine aggregate and the recycled brick coarse aggregate can be used for preparing recycled water stable materials and recycled standard bricks.
The recycled brick stone fine aggregate, the recycled concrete coarse aggregate and the recycled concrete fine aggregate are used for producing recycled concrete, and the recycled concrete fine aggregate is used for producing recycled mortar.
The invention has been described in an illustrative manner, and it is to be understood that any simple variations, modifications or other equivalent changes which can be made by one skilled in the art without departing from the spirit of the invention fall within the scope of the invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168485.4A CN112828002A (en) | 2019-11-25 | 2019-11-25 | A method for recycling construction waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168485.4A CN112828002A (en) | 2019-11-25 | 2019-11-25 | A method for recycling construction waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112828002A true CN112828002A (en) | 2021-05-25 |
Family
ID=75922542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911168485.4A Pending CN112828002A (en) | 2019-11-25 | 2019-11-25 | A method for recycling construction waste |
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| Country | Link |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245053A (en) * | 2021-05-31 | 2021-08-13 | 同济大学 | Device and method for particle size screening and ultra-clean discharge of particulate matters |
| CN113510072A (en) * | 2021-06-30 | 2021-10-19 | 太仓金马智能装备有限公司 | Building demolition waste moving line treatment process method |
| CN113618929A (en) * | 2021-08-06 | 2021-11-09 | 成都大宏立机器股份有限公司 | Green intelligent integrated mill |
| CN113860778A (en) * | 2021-11-03 | 2021-12-31 | 苏州和锦科技有限公司 | Preparation process for recycling concrete building material by utilizing construction waste |
| CN114130469A (en) * | 2021-11-26 | 2022-03-04 | 赵光华 | Garbage classification and sorting processing system and processing method |
| CN114195436A (en) * | 2021-11-15 | 2022-03-18 | 北京建工资源循环利用投资有限公司 | Recycled concrete replaced by brick-concrete recycled fine aggregate and preparation method thereof |
| CN114210695A (en) * | 2021-12-07 | 2022-03-22 | 漳州市诏安亿峰建筑工程材料有限公司 | A construction waste recycling process |
| CN114226400A (en) * | 2021-12-20 | 2022-03-25 | 龙海市东煜建筑垃圾资源利用有限公司 | Method for preparing dry-mixed mortar by recycling construction waste resources |
| CN114605098A (en) * | 2022-03-03 | 2022-06-10 | 福建海环海滨资源开发有限公司 | Construction waste treatment method |
| CN114713602A (en) * | 2022-03-03 | 2022-07-08 | 福建海环海滨资源开发有限公司 | Construction waste treatment method |
| CN115889415A (en) * | 2023-01-30 | 2023-04-04 | 中原环保股份有限公司 | A kind of construction waste processing method |
| CN116985252A (en) * | 2023-07-24 | 2023-11-03 | 深圳市工勘岩土集团有限公司 | Preparation method for resource utilization of crushed construction waste powder |
| CN117139333A (en) * | 2023-08-29 | 2023-12-01 | 上海良延环保科技发展有限公司 | Harmless treatment method for construction waste |
| CN117628498A (en) * | 2023-12-01 | 2024-03-01 | 东方电气集团东方锅炉股份有限公司 | A device and method for efficiently separating calcium and sulfur from high-sulfur coal circulating fluidized bed slag |
| CN117920566A (en) * | 2023-12-12 | 2024-04-26 | 永吉县信仁新能源开发有限公司 | Method for separating combustible substances from residual solid waste |
| CN118002250A (en) * | 2024-03-08 | 2024-05-10 | 中国二十二冶集团有限公司 | Construction waste classification and processing device |
| CN118371516A (en) * | 2024-03-25 | 2024-07-23 | 阿坝铝厂 | A method for cleaning and crushing electrolytic aluminum residual electrodes |
| CN118371516B (en) * | 2024-03-25 | 2026-05-01 | 阿坝铝厂 | A method for cleaning and crushing electrolytic aluminum electrode residues |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245053A (en) * | 2021-05-31 | 2021-08-13 | 同济大学 | Device and method for particle size screening and ultra-clean discharge of particulate matters |
| CN113510072A (en) * | 2021-06-30 | 2021-10-19 | 太仓金马智能装备有限公司 | Building demolition waste moving line treatment process method |
| CN113618929A (en) * | 2021-08-06 | 2021-11-09 | 成都大宏立机器股份有限公司 | Green intelligent integrated mill |
| CN113860778A (en) * | 2021-11-03 | 2021-12-31 | 苏州和锦科技有限公司 | Preparation process for recycling concrete building material by utilizing construction waste |
| CN114195436A (en) * | 2021-11-15 | 2022-03-18 | 北京建工资源循环利用投资有限公司 | Recycled concrete replaced by brick-concrete recycled fine aggregate and preparation method thereof |
| CN114130469A (en) * | 2021-11-26 | 2022-03-04 | 赵光华 | Garbage classification and sorting processing system and processing method |
| CN114210695A (en) * | 2021-12-07 | 2022-03-22 | 漳州市诏安亿峰建筑工程材料有限公司 | A construction waste recycling process |
| CN114226400A (en) * | 2021-12-20 | 2022-03-25 | 龙海市东煜建筑垃圾资源利用有限公司 | Method for preparing dry-mixed mortar by recycling construction waste resources |
| CN114605098A (en) * | 2022-03-03 | 2022-06-10 | 福建海环海滨资源开发有限公司 | Construction waste treatment method |
| CN114713602A (en) * | 2022-03-03 | 2022-07-08 | 福建海环海滨资源开发有限公司 | Construction waste treatment method |
| CN115889415A (en) * | 2023-01-30 | 2023-04-04 | 中原环保股份有限公司 | A kind of construction waste processing method |
| CN116985252A (en) * | 2023-07-24 | 2023-11-03 | 深圳市工勘岩土集团有限公司 | Preparation method for resource utilization of crushed construction waste powder |
| CN117139333A (en) * | 2023-08-29 | 2023-12-01 | 上海良延环保科技发展有限公司 | Harmless treatment method for construction waste |
| CN117628498A (en) * | 2023-12-01 | 2024-03-01 | 东方电气集团东方锅炉股份有限公司 | A device and method for efficiently separating calcium and sulfur from high-sulfur coal circulating fluidized bed slag |
| CN117920566A (en) * | 2023-12-12 | 2024-04-26 | 永吉县信仁新能源开发有限公司 | Method for separating combustible substances from residual solid waste |
| CN118002250A (en) * | 2024-03-08 | 2024-05-10 | 中国二十二冶集团有限公司 | Construction waste classification and processing device |
| CN118371516A (en) * | 2024-03-25 | 2024-07-23 | 阿坝铝厂 | A method for cleaning and crushing electrolytic aluminum residual electrodes |
| CN118371516B (en) * | 2024-03-25 | 2026-05-01 | 阿坝铝厂 | A method for cleaning and crushing electrolytic aluminum electrode residues |
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Application publication date: 20210525 |