CN111732408A - Method for recycling scrap PC prefabricated part - Google Patents
Method for recycling scrap PC prefabricated part Download PDFInfo
- Publication number
- CN111732408A CN111732408A CN202010680714.7A CN202010680714A CN111732408A CN 111732408 A CN111732408 A CN 111732408A CN 202010680714 A CN202010680714 A CN 202010680714A CN 111732408 A CN111732408 A CN 111732408A
- Authority
- CN
- China
- Prior art keywords
- conveying
- platform
- materials
- crusher
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004064 recycling Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 59
- 239000004576 sand Substances 0.000 claims abstract description 37
- 238000005520 cutting process Methods 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000001125 extrusion Methods 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 238000012216 screening Methods 0.000 claims abstract description 15
- 239000010842 industrial wastewater Substances 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000002351 wastewater Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004574 high-performance concrete Substances 0.000 claims description 3
- 229910021487 silica fume Inorganic materials 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 1
- 238000000638 solvent extraction Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012946 outsourcing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B30/00—Compositions for artificial stone, not containing binders
- C04B30/02—Compositions for artificial stone, not containing binders containing fibrous materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/002—Water
- C04B22/0046—Waste slurries or solutions used as gauging water
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method for recycling a scrapped PC prefabricated part, which comprises the steps of hoisting a to-be-processed member to a cutting platform, cutting and blocking the to-be-processed member, cooling the member by a spraying device, reducing dust, collecting and processing the member into industrial wastewater; hoisting each block to an extrusion platform, extruding and separating the blocks, and then conveying the blocks to a sorting platform; removing impurities at the sorting platform, conveying the materials to a jaw crusher for crushing and deironing, and conveying the materials to a counterattack crusher for continuous crushing; then, conveying the concrete to a round roller screen for screening and impurity removal to obtain concrete materials with three particle sizes of 0-1 mm, 1-30 mm and more than 30 mm; carrying out different path treatment to obtain coarse sand and medium sand; dust collecting points are arranged at the housing of the feeding ports of the jaw crusher, the impact crusher and the round roller screen to collect dust; (6) and mixing the obtained industrial wastewater, coarse sand, medium sand and dust with other components to prepare the ultra-high performance concrete. The invention can realize the resource recycling of the prefabricated construction waste, and realize the recycling economy for protecting the environment, preventing pollution, saving resources and ensuring the smooth urban construction.
Description
Technical Field
The invention belongs to the field of assembly type buildings, and particularly relates to a method for recycling a scrapped PC prefabricated part.
Background
The assembly type building is a building formed by assembling the PC prefabricated parts on a construction site, a large amount of assembly operation on the site is greatly reduced compared with the field operation amount of cast-in-place operation, the PC prefabricated parts can be produced in batches, namely in a standardized manner in a factory, the production efficiency is high, the quality of each PC prefabricated part can be ensured, the cost of the whole building can be reduced, and the requirements of green buildings are met.
But the PC prefabricated part may be abandoned in production and transportation, and the probability of damage to large-sized plates such as composite floor slabs and wall slabs in transportation is higher.
Because the PC component is different from the traditional construction waste, most of the components of the PC component are reinforced concrete, and the components of the PC component are pre-embedded wire boxes, wire pipes, heat insulation plates or foam plates, the scrapped PC prefabricated component has higher recycling value. And no better recycling treatment system exists at present.
Disclosure of Invention
The invention aims to provide a method for efficiently recycling scrapped PC prefabricated parts and preparing ultrahigh-performance concrete from recycled materials, and the treatment and resource recycling of the scrapped PC prefabricated parts are realized.
The invention provides a method for recycling a scrapped PC prefabricated part, which comprises the following steps:
(1) hanging a component to be processed on a cutting platform, conveying the component while cutting and blocking the component, cooling and dedusting the component by a spraying device in the processing process, and collecting and processing the component into industrial wastewater;
(2) hoisting each block cut in the step (1) to an extrusion platform, conveying and extruding, mechanically separating the structural material of each block, and conveying the structural material to a sorting platform;
(3) manually sorting out other materials except concrete blocks in the materials obtained in the step (2) at a sorting platform;
(4) sending the material obtained in the step (3) to a jaw crusher for crushing and deironing, then sending the material to a counterattack crusher for continuous crushing, and arranging dust collection points at housings of feeding ports of the jaw crusher and the counterattack crusher to collect dust;
(5) conveying the material crushed by the impact crusher to a round roller screen for screening to remove impurities except concrete in the material, and obtaining concrete materials with three particle sizes of 0-1 mm, 1-30 mm and more than 30 mm; wherein, the material with the particle size of 0-1 mm enters a coarse sand bin; feeding materials with the particle size of 1-30 mm into a vertical impact crusher, crushing, feeding the materials into a vibrating screen, screening, feeding the materials with the particle size of less than 0.5mm into a medium sand bin, returning the materials with the particle size of more than 0.5mm into the vertical impact crusher, crushing, and then repeatedly screening; returning the material with the grain size of more than 30mm to the impact crusher for crushing, and then carrying out subsequent treatment on the material with the corresponding grain size;
a dust collecting point is arranged at the cover shell of the feeding port of the round roller screen to collect dust;
(6) and (3) preparing the ultra-high performance concrete by using the industrial wastewater obtained in the step (1), the coarse sand and the medium sand obtained in the step (4) and the dust obtained in the steps (4) and (5).
In an embodiment of the above technical scheme, the cutting platform in step (1) includes a frame, a carrier roller conveyer, a double-saw-blade cutting machine and a spraying device, the double-saw-blade cutting machine is fixed on a width direction central plane of the head of the frame, the carrier roller conveyer connected to the frame is arranged on the right side of the front side, the rear side, the left side and the right side of the double-saw-blade cutting machine, and the spraying device is arranged above the carrier roller conveyer.
In an embodiment of the above technical solution, in the step (2), the extrusion platform includes a mounting platform, an extrusion device and a chain scraper conveyor, the chain scraper conveyor is disposed on a central plane of the mounting platform in the width direction, and the extrusion device is symmetrically disposed on the mounting platform corresponding to two sides of the chain scraper conveyor.
In one embodiment of the above technical solution, the extrusion device is a hydraulic cylinder or an electric push rod.
In one embodiment of the above technical scheme, in the step (4), the material is conveyed from the outlet of the jaw crusher to the impact crusher through the belt conveyor for secondary crushing, and the belt conveyor is provided with the iron remover.
In one embodiment of the above technical scheme, the material at the outlet of the impact crusher in the step (4) is conveyed to a round roller screen by a belt conveyor for screening, and the belt conveyor is provided with a manual sorting table and an iron remover.
In one embodiment of the above technical solution, the round roller screen in the step (5) is a two-layer screen.
In an embodiment of the above technical solution, the sorting platform is a plate conveyor.
In one embodiment of the above technical solution, when the high performance concrete is prepared in step (6), the mass ratio of each component is as follows: 165 parts of industrial wastewater, 740 parts of powder, 1100 parts of mixture of coarse sand and medium sand, 120 parts of 800-mesh silica fume, about 90 parts of slag powder, 200 parts of 3-centimeter common steel fiber and 22 parts of
And the high-performance water reducing agent comprises coarse sand and medium sand, wherein the coarse sand accounts for 20-30% of the mixture by mass when the coarse sand and the medium sand are mixed.
According to the invention, the scrapped PC prefabricated part is subjected to cutting, blocking, extrusion separation, crushing and screening to obtain coarse sand and medium sand aggregate, the cooling dust-settling wastewater during cutting is collected and treated into utilizable industrial wastewater, and the dust at the material inlet of crushing and screening equipment is collected, so that the scrapped PC prefabricated part can be efficiently treated. Meanwhile, coarse sand, medium sand, dust and industrial wastewater are used as raw materials, and other components are doped to prepare the ultra-high new energy concrete, so that the resource recycling of prefabricated construction waste is realized, and the recycling economy of environmental protection, pollution prevention, resource saving and smooth urban construction is realized.
Drawings
FIG. 1 is a flow diagram of the present invention.
Fig. 2 is a schematic structural diagram of a cutting platform according to an embodiment of the present invention.
Fig. 3 is a schematic plan view of the idler conveyor and the dual blade cutter of fig. 2.
Fig. 4 is a schematic structural diagram of the pressing platform of the present embodiment.
Fig. 5 is a top view of fig. 4.
Detailed Description
The method for recycling the scrapped PC prefabricated part disclosed by one embodiment of the invention comprises the following steps of:
(1) and hoisting the PC prefabricated part to be processed, such as a composite floor slab, a wallboard and the like, to the upper edge of the segmentation platform, conveying the PC prefabricated part while cutting and blocking the PC prefabricated part.
As shown in fig. 2 and 3, the dividing platform a of the present embodiment includes a frame a1, an idler conveyor a2, a double-blade cutter A3, and a shower device a 4.
The frame A1 is fixed on the ground of a workshop, the double-blade cutting machine A3 is fixed on the width direction central plane of the head of the frame, the carrier roller conveying devices A2 which are connected to the frame on the right side are arranged on the front side, the rear side, the left side and the right side of the double-blade cutting machine A3, and the spraying device A3 is arranged above the carrier roller conveying devices A2.
Two sides of the rack in the length direction are respectively provided with a wastewater recovery ditch.
The cutting platform is used as follows:
the PC prefabricated part is hung on a carrier roller conveying device corresponding to the tail of the rack, the carrier roller conveying device is started, the PC prefabricated part is conveyed forwards in the arrow direction by the rotary motion of the carrier roller, when the PC prefabricated part is conveyed to a double-saw-blade cutting machine, a spraying device is opened to spray water downwards, the cooling and dust-falling effects during cutting are achieved, and the double-saw-blade cutting machine divides the PC prefabricated part into three parts. And the cooled and dusted wastewater flows into a wastewater recovery ditch.
As shown in figure 1, the wastewater collected in the wastewater recovery ditch flows into a sedimentation tank and is treated by a three-stage sedimentation tank to obtain available industrial wastewater.
(2) And hoisting each block cut by the segmentation platform 1 to the extrusion platform B, conveying and extruding the block, mechanically separating the structural material of each block, and conveying the structural material to the sorting platform.
As shown in fig. 4 and 5, the pressing platform B of the present embodiment includes a mounting platform B1, a pressing device B2, and a slat conveyor B3, the slat conveyor B3 is disposed on the width-direction center plane of the mounting platform B1, and pressing devices B2 are symmetrically disposed on the mounting platform corresponding to both sides of the slat conveyor.
The pressing device B2 is preferably a hydraulic oil cylinder, and the end of a piston rod of the hydraulic oil cylinder is connected with a pressing plate.
The extrusion platform was used as follows:
hoisting the blocked PC prefabricated parts to a chain conveyor and conveying the PC prefabricated parts forwards in the arrow direction, and simultaneously extruding the PC prefabricated parts conveyed by the chain conveyor through the extrusion plates on the two sides to separate the pre-embedded structural parts from the concrete blocks;
the sorting platform adopts a plate conveyor, embedded parts such as reinforcing steel bars, wire boxes, wire pipes and heat insulation plates after extrusion separation are sorted out from the concrete blocks at the sorting platform through manpower, and overlong reinforcing steel bars on the concrete blocks are cut off and removed simultaneously, so that the concrete can smoothly enter a subsequent jaw crusher.
(3) And (3) arranging a chute at the tail end of the sorting platform, and conveying the material obtained in the step (2) to a jaw crusher for coarse crushing through the chute and then conveying the material to a counterattack crusher for secondary crushing.
As shown in fig. 1, a belt conveyor is provided at the outlet of the jaw crusher, through which belt conveyor the material is conveyed into the impact crusher. The belt conveyor is provided with an iron remover, so that iron materials in the materials are removed through the iron remover in the conveying process.
Dust collecting points are arranged at the feed inlet enclosers of the jaw crusher and the impact crusher to collect dust through pipelines and then the dust enters a dust remover.
(4) Conveying the material crushed by the impact crusher to a round roller screen for screening to remove impurities except concrete in the material, and obtaining concrete materials with three particle sizes of 0-1 mm, 1-30 mm and more than 30 mm; wherein, the material with the particle size of 0-1 mm enters a coarse sand bin; feeding materials with the particle size of 1-30 mm into a vertical impact crusher, crushing, feeding the materials into a vibrating screen, screening, feeding the materials with the particle size of less than 0.5mm into a medium sand bin, returning the materials with the particle size of more than 0.5mm into the vertical impact crusher, crushing, and then repeatedly screening; and returning the material with the grain diameter of more than 30mm to the impact crusher for crushing, and then carrying out subsequent treatment on the material with the corresponding grain diameter.
The round roller screen is a two-layer screen.
A dust collecting point is arranged at a cover of a feeding port of the round roller screen, and dust is collected by a pipeline and enters a dust remover.
And a belt conveyor is arranged at an outlet of the impact crusher, and the materials are conveyed to the round roller screen through the belt conveyor for screening. The belt conveyor is provided with a manual sorting table and an iron remover.
(5) And (3) preparing the ultra-high performance concrete by using the industrial wastewater obtained in the step (1), the coarse sand and the medium sand obtained in the step (3) and the dust obtained in the steps (3) and (4).
The high-performance concrete comprises the following components in parts by mass:
165 parts of industrial wastewater, 740 parts of powder, 1100 parts of a mixture of coarse sand and medium sand, 120 parts of 800-mesh silica fume, about 90 parts of slag powder, 200 parts of 3 cm common steel fiber and 22 parts of a high-performance water reducing agent, wherein when the coarse sand and the medium sand are mixed, the coarse sand accounts for 20-30% of the mixture in mass ratio.
Mixing the components, stirring, vibrating, forming, waiting for 3 days until the strength reaches 80MPA, and waiting for 7 days until the strength reaches 90 MPA.
The carrier roller conveying device and the double-saw-blade cutting machine of the cutting platform can adopt outsourcing equipment, and the spraying device can adopt a common nozzle spraying device. The chain plate conveyor and the hydraulic oil cylinder of the extrusion platform can adopt outsourcing equipment, but the head of a piston rod of the hydraulic oil cylinder needs to be provided with an extrusion plate.
Plate conveyors adopted by the sorting platform and other equipment such as jaw crushers, belt conveyors, impact crushers, round roller screens, vertical impact crushers, vibrating screens and the like can all adopt outsourcing equipment.
The iron remover can adopt strong magnets.
Claims (9)
1. A method for recycling scrapped PC prefabricated parts comprises the following steps:
(1) hanging a component to be processed on a partition platform, conveying the component while cutting and partitioning the component, cooling and dedusting the component by a spraying device in the processing process, and collecting and processing waste water into usable industrial waste water;
(2) hoisting each block cut in the step (1) to an extrusion platform, conveying and extruding, mechanically separating the structural material of each block, and conveying the structural material to a sorting platform;
(3) manually sorting out other materials except concrete blocks in the materials obtained in the step (2) at a sorting platform;
(4) sending the material obtained in the step (3) to a jaw crusher for crushing and deironing, then sending the material to a counterattack crusher for continuous crushing, and arranging dust collection points at housings of feeding ports of the jaw crusher and the counterattack crusher to collect dust;
(5) conveying the material crushed by the impact crusher to a round roller screen for screening to remove impurities except concrete in the material, and obtaining concrete materials with three particle sizes of 0-1 mm, 1-30 mm and more than 30 mm; wherein, the material with the particle size of 0-1 mm enters a coarse sand bin; feeding materials with the particle size of 1-30 mm into a vertical impact crusher, crushing, feeding the materials into a vibrating screen, screening, feeding the materials with the particle size of less than 0.5mm into a medium sand bin, returning the materials with the particle size of more than 0.5mm into the vertical impact crusher, crushing, and then repeatedly screening; returning the material with the grain size of more than 30mm to the impact crusher for crushing, and then carrying out subsequent treatment on the material with the corresponding grain size;
a dust collecting point is arranged at the cover shell of the feeding port of the round roller screen to collect dust;
(6) and (3) preparing the ultra-high performance concrete by using the industrial wastewater obtained in the step (1), the coarse sand and the medium sand obtained in the step (4) and the dust obtained in the steps (4) and (5).
2. The recycling method of the scrap PC precast member according to claim 1, wherein: the cutting platform in the step (1) comprises a rack, a carrier roller conveying device, a double-saw-blade cutting machine and a spraying device, wherein the double-saw-blade cutting machine is fixed on the central plane of the head of the rack in the width direction, the carrier roller conveying devices connected to the rack are uniformly arranged in the front, back, left and right sides of the double-saw-blade cutting machine, and the spraying device is arranged above the carrier roller conveying device.
3. The recycling method of the scrap PC precast member according to claim 1, wherein: and (3) the extrusion platform in the step (2) comprises a mounting platform, an extrusion device and a chain plate conveyor, wherein the chain plate conveyor is arranged on the central plane of the mounting platform in the width direction, and the extrusion device is symmetrically arranged on the mounting platform corresponding to two sides of the chain plate conveyor.
4. The recycling method of the scrap PC precast member according to claim 3, wherein: the extrusion device is a hydraulic oil cylinder or an electric push rod.
5. The recycling method of the scrap PC precast member according to claim 1, wherein: and (4) conveying the materials from an outlet of the jaw crusher to a counterattack crusher through a belt conveyor for secondary crushing, wherein the belt conveyor is provided with an iron remover.
6. The recycling method of the scrap PC precast member according to claim 1, wherein: and (4) conveying the materials at the outlet of the impact crusher to a round roller screen by a belt conveyor for screening, wherein the belt conveyor is provided with a manual sorting table and an iron remover.
7. The recycling method of the scrap PC precast member according to claim 1, wherein: the round roller screen in the step (5) is a double-layer screen.
8. The recycling method of the scrap PC precast member according to claim 1, wherein: the sorting platform is a plate conveyor.
9. The recycling method of the scrap PC precast member according to claim 1, wherein: when the high-performance concrete is prepared in the step (6), the mass ratio of each component is as follows: 165 parts of industrial wastewater, 740 parts of powder, 1100 parts of a mixture of coarse sand and medium sand, 120 parts of 800-mesh silica fume, about 90 parts of slag powder, 200 parts of 3 cm common steel fiber and 22 parts of a high-performance water reducing agent, wherein when the coarse sand and the medium sand are mixed, the coarse sand accounts for 20-30% of the mixture in mass ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680714.7A CN111732408B (en) | 2020-07-15 | 2020-07-15 | Method for recycling scrapped PC prefabricated part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680714.7A CN111732408B (en) | 2020-07-15 | 2020-07-15 | Method for recycling scrapped PC prefabricated part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111732408A true CN111732408A (en) | 2020-10-02 |
| CN111732408B CN111732408B (en) | 2024-09-17 |
Family
ID=72654636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010680714.7A Active CN111732408B (en) | 2020-07-15 | 2020-07-15 | Method for recycling scrapped PC prefabricated part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111732408B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559956A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Concrete recycled aggregate and preparation method thereof |
| CN202862415U (en) * | 2012-10-19 | 2013-04-10 | 天津宝丰混凝土桩杆有限公司 | Recycling device applicable to cutting precast pile |
| CN204620062U (en) * | 2014-11-29 | 2015-09-09 | 个旧鸿辉新型墙体材料有限公司 | Gathering dust and recycle device of a kind of building block raw material crushing system |
| CN206716702U (en) * | 2017-03-21 | 2017-12-08 | 贵州汇川建安混凝土有限公司 | A kind of recycle device for discarded concrete |
| CN207388027U (en) * | 2017-11-01 | 2018-05-22 | 中天建设集团有限公司珠海分公司 | A kind of water cycles brick cutter device |
| CN109111180A (en) * | 2018-08-28 | 2019-01-01 | 浙江华坤建设有限公司 | Precast concrete three-protection design method |
| CN110369077A (en) * | 2019-09-03 | 2019-10-25 | 重庆德新纪源科技有限公司 | A kind of crushing device for assembled bridge pier waste recovery |
| CN209773047U (en) * | 2019-04-18 | 2019-12-13 | 刘志勇 | Bridge precast beam slab concrete leftover bits processing apparatus |
| CN209901379U (en) * | 2019-03-08 | 2020-01-07 | 中铁十九局集团第三工程有限公司 | Dust type concrete waste block smashing, recycling and processing device |
| CN210551494U (en) * | 2019-07-23 | 2020-05-19 | 中建三局集团有限公司 | Integration heated board design cutting machine |
| CN111348870A (en) * | 2020-03-12 | 2020-06-30 | 陆明 | Method for preparing recycled concrete by using waste concrete |
| CN111359743A (en) * | 2020-04-08 | 2020-07-03 | 李雄高 | Breaker is used in environment-friendly concrete processing for construction |
| CN212596288U (en) * | 2020-07-15 | 2021-02-26 | 湖南东方红新型建材有限公司 | Scrap PC prefabricated part recovery system |
-
2020
- 2020-07-15 CN CN202010680714.7A patent/CN111732408B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559956A (en) * | 2004-02-26 | 2005-01-05 | 同济大学 | Concrete recycled aggregate and preparation method thereof |
| CN202862415U (en) * | 2012-10-19 | 2013-04-10 | 天津宝丰混凝土桩杆有限公司 | Recycling device applicable to cutting precast pile |
| CN204620062U (en) * | 2014-11-29 | 2015-09-09 | 个旧鸿辉新型墙体材料有限公司 | Gathering dust and recycle device of a kind of building block raw material crushing system |
| CN206716702U (en) * | 2017-03-21 | 2017-12-08 | 贵州汇川建安混凝土有限公司 | A kind of recycle device for discarded concrete |
| CN207388027U (en) * | 2017-11-01 | 2018-05-22 | 中天建设集团有限公司珠海分公司 | A kind of water cycles brick cutter device |
| CN109111180A (en) * | 2018-08-28 | 2019-01-01 | 浙江华坤建设有限公司 | Precast concrete three-protection design method |
| CN209901379U (en) * | 2019-03-08 | 2020-01-07 | 中铁十九局集团第三工程有限公司 | Dust type concrete waste block smashing, recycling and processing device |
| CN209773047U (en) * | 2019-04-18 | 2019-12-13 | 刘志勇 | Bridge precast beam slab concrete leftover bits processing apparatus |
| CN210551494U (en) * | 2019-07-23 | 2020-05-19 | 中建三局集团有限公司 | Integration heated board design cutting machine |
| CN110369077A (en) * | 2019-09-03 | 2019-10-25 | 重庆德新纪源科技有限公司 | A kind of crushing device for assembled bridge pier waste recovery |
| CN111348870A (en) * | 2020-03-12 | 2020-06-30 | 陆明 | Method for preparing recycled concrete by using waste concrete |
| CN111359743A (en) * | 2020-04-08 | 2020-07-03 | 李雄高 | Breaker is used in environment-friendly concrete processing for construction |
| CN212596288U (en) * | 2020-07-15 | 2021-02-26 | 湖南东方红新型建材有限公司 | Scrap PC prefabricated part recovery system |
Non-Patent Citations (1)
| Title |
|---|
| 程显强: "混凝土再生微粉的研究现状及应用", 《低温建筑技术》, pages 78 - 79 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111732408B (en) | 2024-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110813483A (en) | Construction waste crushing and sorting treatment system | |
| KR101433692B1 (en) | Gypsum waste recycling system | |
| JP2012024690A (en) | System for sorting and treating waste gypsum board | |
| CN201511034U (en) | Construction waste treatment regeneration system | |
| CN101549351A (en) | Building refuse treatment regeneration system | |
| CN110976478B (en) | Recycling treatment process for demolition and decoration wastes | |
| CN102974420B (en) | Cut roll crusher and construction waste roll-in crushing station based on same | |
| CN210936429U (en) | Sorting and recycling device for construction waste | |
| CN110248742B (en) | Production device and production method of circulating aggregate | |
| CN212237647U (en) | Construction waste treatment system | |
| CN212596288U (en) | Scrap PC prefabricated part recovery system | |
| KR100358687B1 (en) | The constructive recycling methods and instruments of Reclaimed waste. | |
| CN104707702A (en) | Recovery and treatment method and device of gypsum plaster board | |
| CN113275115B (en) | Efficient and environment-friendly automatic crushing treatment process for reinforced concrete beam column | |
| CN105478214A (en) | Construction waste integration and separation method | |
| WO2014089927A1 (en) | Construction waste co-extrusion harmless treatment system and method thereof | |
| CN210304011U (en) | Waste concrete recycling device | |
| CN216499992U (en) | Waste incinerator slag treatment system | |
| CN113976308A (en) | Waste incinerator slag treatment system and method | |
| CN111957420B (en) | Building waste pretreatment system and pretreatment method | |
| CN111732408B (en) | Method for recycling scrapped PC prefabricated part | |
| CN210474947U (en) | Production line for manufacturing recycled bricks by using decoration garbage | |
| CN217856702U (en) | Construction waste recovery system | |
| CN108545976A (en) | A kind of preparation method of regenerated coarse aggregate that mixing gravel | |
| CN102310071A (en) | Sorting, recycling and processing integrated device for construction waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |