CN117225863A - Construction waste recycling process - Google Patents
Construction waste recycling process Download PDFInfo
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- CN117225863A CN117225863A CN202311226380.6A CN202311226380A CN117225863A CN 117225863 A CN117225863 A CN 117225863A CN 202311226380 A CN202311226380 A CN 202311226380A CN 117225863 A CN117225863 A CN 117225863A
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- 239000002699 waste material Substances 0.000 title claims abstract description 33
- 238000004064 recycling Methods 0.000 title claims abstract description 25
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 47
- 239000004567 concrete Substances 0.000 claims abstract description 41
- 238000012216 screening Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000004566 building material Substances 0.000 claims abstract description 4
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 35
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 8
- 239000006148 magnetic separator Substances 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 235000014676 Phragmites communis Nutrition 0.000 claims description 4
- 238000004904 shortening Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- 229910001172 neodymium magnet Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The application discloses a construction waste recycling process, which comprises the following steps: firstly, primarily crushing waste reinforced concrete; screening the crushed reinforced concrete blocks into two parts, wherein the first part is a pure concrete block, and the second part is reinforced concrete adhered together; step three, the first part and the second part are respectively sent to a collecting tank and a separating mechanism; step four, delivering the concrete separated by the separating mechanism into a collecting box, and storing the separated steel bars for later use; step five, secondarily crushing the concrete in the collecting box to obtain recycled aggregate; and step six, the recycled aggregate is used for producing concrete, mortar or preparing building material products and the like with corresponding strength grades. The application firstly breaks the waste reinforced concrete, then separates the reinforced concrete completely through the separating mechanism, and then processes the broken concrete blocks to be used as aggregate, thereby realizing the recycling of the reinforced concrete in the building.
Description
Technical Field
The application mainly relates to the technical field of recycling of construction waste, in particular to a recycling process of construction waste.
Background
The construction waste refers to dregs, waste soil, waste materials, sludge and other wastes generated in the process of constructing, paving or dismantling various buildings, structures, pipe networks and the like by construction units or individuals. Along with the acceleration of industrialization and urban processes, the construction industry also develops rapidly, so that a large amount of construction wastes are generated, if only landfill is used for treating the construction wastes, a large amount of landfill sites are needed, soil resource waste and the like are caused, and the construction wastes can cause great pollution to soil, underground water quality and the like and do not meet the strategy of sustainable development. Therefore, the development of the construction waste recycling industry needs to travel the road of ecological environment materials and green construction materials and the road of high added value recycling utilization, otherwise, the construction waste recycling industry is difficult to obtain a great breakthrough.
The recycled reinforced concrete can be processed into recycled aggregate through crushing, screening, washing and other processes. The recycled aggregate can be used in the fields of pavement, cement products, concrete products and the like. And for recycled reinforced concrete, the most important step is to separate the reinforced concrete from the concrete. But because the reinforcing bar is vertically and horizontally staggered and distributes in the concrete, the two separation completely is difficult to realize by the reinforcing bar and the concrete, the utilization rate of the concrete blocks is low, and meanwhile, the reinforcing bar is inconvenient to recycle and connect, and if the reinforcing bar and the concrete are thoroughly separated in a way of crushing for many times, the reinforcing bar is crushed, so that the reinforcing bar is difficult to ensure good integrity, and the difficulty of recycling the reinforcing bar is greatly increased.
Disclosure of Invention
The technical scheme of the application aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and mainly provides a construction waste recycling process which is used for solving the technical problem in the prior art.
The technical scheme adopted for solving the technical problems is as follows:
a construction waste recycling process comprises the following steps:
firstly, conveying waste reinforced concrete into a primary crusher through a belt conveyor to perform primary crushing, so that large reinforced concrete blocks are changed into small reinforced concrete blocks;
step two, conveying the crushed small reinforced concrete blocks into a first sorting mechanism for screening, wherein the small reinforced concrete blocks are screened into two parts, the first part is pure concrete blocks, and the second part is reinforced concrete adhered together;
step three, the pure concrete blocks of the first part are sent into a collecting box, and meanwhile, the reinforced concrete adhered together of the second part is sent into a separating mechanism, so that the reinforced concrete adhered together are separated;
the separating mechanism in the third step comprises a stepping conveyor, a breaking assembly, a vibration assembly, a sorting assembly and a master control;
wherein the breaking assembly is arranged right above the stepping conveyor and comprises breaking monomers distributed in a matrix array, each breaking monomer comprises an electric control telescopic air rod, the lower end of each electric control telescopic air rod is connected with a breaking pick body through a connecting frame, the output end of the breaking pick body is provided with an alloy pick, the alloy pick is divided into a cylinder and a pick nozzle, the lower end of the cylinder is provided with a detection groove, the top of the detection groove is provided with a damping sleeve, the top of the inside of the damping sleeve is provided with a magnetic block which is attracted with the reinforced steel bar magnetism, the lower end of the magnetic block is provided with a reed for supporting the magnetic block, one side of the lower end of the magnetic block is provided with a control button for controlling an electric control telescopic air rod and a crushing pick body to be closed, and the electric control telescopic air rod is reset into a single working time period from the maximum contraction state to the maximum expansion state;
step four, delivering the concrete separated by the separating mechanism into a collecting box, cleaning the separated steel bars, and storing for later use;
fifthly, putting the concrete in the collecting box into a secondary crusher to crush again to obtain primary aggregate, and screening the aggregate according to the particle size by using a screening machine to obtain aggregates with different grades, namely the recycled aggregate;
and step six, the recycled aggregate is used for producing concrete and mortar with corresponding strength grades or preparing building material products such as building blocks, wallboards, floor tiles and the like.
Preferably, in the second step, the sorting mechanism is a magnetic separator.
Preferably, in the third step, the step feeder includes a frame, rotating shafts rotatably mounted at two ends of the frame, a conveyer belt sleeved on the rotating shafts, and a step motor, a rotating disc is arranged at the center of the inside of the frame, half-tooth gears are rotatably mounted in the rotating disc, the output end of the step motor is connected with the axes of the half-tooth gears, two rotating shafts are connected with gears at one ends of the shafts, racks are meshed with the two gears, the rack is partially positioned in the rotating disc and meshed with the half-tooth gears, and the half-tooth gears and the racks are meshed with each other from separation in a single working period.
Preferably, in the third step, the master control transmits signals for stretching and shortening the electric control telescopic air rod twice, and in the stretching stage of the electric control telescopic air rod, if the control button is touched, stretching is stopped, and the electric control telescopic air rod waits for receiving the shortening signals for resetting.
Preferably, the vibration assembly is arranged at the output end of the stepping conveyor, the vibration assembly comprises a shock absorption seat, a vibration conveying channel and a vibration motor, the vibration conveying channel is arranged on the shock absorption seat through an elastic rod, the output end of the vibration motor is connected with the vibration conveying channel, and in the single working time period, the vibration conveying channel and the vibration motor are in working operation states, and vice versa.
Preferably, the sorting assembly is arranged at the output end of the vibration assembly, the sorting assembly comprises an electric module, a blocking channel is arranged at the moving end of the electric module, the moving direction of the blocking channel is perpendicular to the moving direction of the material, the electric module drives the blocking channel to reciprocate, the reciprocating motion is divided into forward and backward, the electric module drives the blocking channel to advance in a single working time period, and then the electric module drives the blocking channel to retreat in the next single working time period.
Preferably, the baffle channel is hinged towards one side of the vibration component and is provided with a rotating plate, the rotating plate is driven by a motor to rotate, the lower end of the rotating plate is provided with a collecting box, and the motor is driven to move downwards and reset to be positioned between two adjacent single working time periods.
Preferably, the output end of the collecting box is provided with a belt conveyor, the other end of the belt conveyor is arranged above the feeding end of the stepping conveyor, and the output end of the blocking channel is provided with a magnetic separator.
Compared with the prior art, the application has the beneficial effects that:
(1) According to the application, the reinforced concrete is firstly subjected to preliminary crushing by the crusher, then the reinforced concrete is completely separated by the separating mechanism, and then the crushed concrete blocks are processed and used as aggregate, so that the recycling of the reinforced concrete in the building is realized, the problem of difficult recycling of the reinforced concrete in the building garbage is solved, and the recycling rate of the building garbage is improved;
(2) According to the application, when the separation mechanism is adopted, the electric control telescopic air rod drives the crushing pick body to move downwards, the crushing pick body crushes the contacted concrete blocks, if the steel bars exist at the lower end of the crushing pick body, the steel bars and the magnetic blocks are attracted magnetically, so that the magnetic blocks move downwards, the control button is triggered to stop the operation of the crushing single bodies, the damage to the steel bars is avoided, the integrity of the steel bars is ensured, after the processing of all the crushing single bodies is finished, the electric control telescopic air rod is controlled to reset, the crushed reinforced concrete is screened through the sorting assembly, the reinforced concrete blocked by the blocking channel enters the collecting box, then returns to the inlet end of the separation mechanism again for separation under the transportation of the belt conveyor, and the steel bars and the small concrete blocks passing through the blocking channel are screened through the magnetic separator, so that the complete separation of the steel bars and the concrete is realized;
(3) The vibration assembly is adopted, the reinforced concrete in the vibration conveying channel continuously vibrates, and the reinforced concrete blocks in the crushing assembly are impacted by the crushing pick, so that cracks are fully distributed on the concrete blocks, and the reinforced concrete blocks can be rapidly separated under the vibration condition, so that the working efficiency is improved; the sorting assembly is adopted, the blocking channel moves under the pushing of the electric module when being screened, the blocking channel is prevented from being blocked by the reinforcing steel bars with more concrete, screening failure is caused, and the using effect is improved.
The application will be explained in detail below with reference to the drawings and specific embodiments.
Drawings
FIG. 1 is a schematic view of the whole structure of a separating mechanism of the present application;
FIG. 2 is a schematic view of a step conveyor according to the present application;
FIG. 3 is a schematic view of the inner structure of the rotating disc of the present application;
FIG. 4 is a schematic view of the structure of a broken monomer according to the present application;
FIG. 5 is a schematic view of a partial structure of a column according to the present application;
FIG. 6 is a schematic diagram of a vibration assembly according to the present application;
fig. 7 is a schematic view of the sorting assembly according to the present application.
Description of the reference numerals
1. A stepping type material conveyer; 11. a frame; 12. a rotating shaft; 13. a conveyor belt; 14. a stepping motor; 15. a rotating disc; 16. a half-tooth gear; 17. a rack;
2. disassembling the crushing assembly; 21. an electric control telescopic air rod; 22. crushing a pick body; 23. alloy pick; 231. a column; 232. pick nozzle; 233. a detection groove; 234. a damping sleeve; 235. a magnetic block; 236. a reed; 237. a control button;
3. a vibration assembly; 31. a shock absorption seat; 32. vibrating the conveying channel; 33. a vibration motor;
4. a sorting assembly; 41. an electric module; 42. blocking the channel; 43. a rotating plate; 44. and (5) collecting a box.
Detailed Description
In order that the application may be more fully understood, a more particular description of the application will be rendered by reference to the appended drawings, in which several embodiments of the application are illustrated, but which may be embodied in different forms and are not limited to the embodiments described herein, which are, on the contrary, provided to provide a more thorough and complete disclosure of the application.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to the other element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly connected to one of ordinary skill in the art to which this application belongs, and the knowledge of terms used in the description of this application herein for the purpose of describing particular embodiments is not intended to limit the application, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The application provides a technical scheme that:
a construction waste recycling process comprises the following steps:
firstly, conveying waste reinforced concrete into a primary crusher through a belt conveyor to perform primary crushing, so that large reinforced concrete blocks are changed into small reinforced concrete blocks;
wherein, the crusher is jaw crusher.
Step two, conveying the crushed small reinforced concrete blocks into a first sorting mechanism for screening, wherein the small reinforced concrete blocks are screened into two parts, the first part is pure concrete blocks, and the second part is reinforced concrete adhered together;
the sorting mechanism is a magnetic separator and can adsorb reinforced concrete with large weight and small reinforced bar content.
Step three, the pure concrete blocks of the first part are sent into a collecting box, and meanwhile, the reinforced concrete adhered together of the second part is sent into a separating mechanism, so that the reinforced concrete adhered together are separated;
referring to fig. 1, the separating mechanism in the third step includes a stepping conveyor 1, a crushing assembly 2, a vibrating assembly 3, a sorting assembly 4 and a master control;
referring to fig. 1-3, the step conveyor 1 includes a frame 11, rotating shafts 12 rotatably mounted at two ends of the frame 11, a conveyor belt 13 sleeved on the rotating shafts 12, and a step motor 14, a rotating disc 15 is disposed in the center of the frame 11, a half-tooth gear 16 is rotatably mounted in the rotating disc 15, an output end of the step motor 14 is connected with an axle center of the half-tooth gear 16, two ends of the rotating shafts 12 are connected with gears, racks 17 are meshed with the two gears, and the racks 17 are partially disposed in the rotating disc 15 and meshed with the half-tooth gear 16. The stepping motor 14 is started to drive the half-tooth gear 16 to rotate, and due to the special design of the half-tooth gear 16, the half-tooth gear 16 can enable the rack 17 to move for a certain distance, then stop for a certain period of time and then operate, so that the intermittent conveying of reinforced concrete blocks by the stepping conveyor 1 is realized.
Referring to fig. 1, 4 and 5, the breaking assembly 2 is disposed directly above the stepping conveyor 1, the breaking assembly 2 includes breaking units distributed in a matrix array, each breaking unit includes an electric control telescopic air rod 21, a breaking pick body 22 is connected to a lower end of the electric control telescopic air rod 21 through a connecting frame, an output end of the breaking pick body 22 has an alloy pick 23, the alloy pick 23 is divided into a cylinder 231 and a pick mouth 232, a detecting groove 233 is formed in a lower end of the cylinder 231, a damping sleeve 234 is disposed at a top of the detecting groove 233, a magnetic block 235 attracted by steel bar magnetism is disposed at an inner top of the damping sleeve 234, a reed 236 supporting the magnetic block 235 is disposed at a lower end of the magnetic block 235, a control button controlling the electric control telescopic air rod 21 and the breaking pick body 22 to be closed is disposed at one side of the lower end of the magnetic block 235, a total control is transmitted to the electric control telescopic air rod 21 to extend and shorten signals, and if the electric control button 21 is extended and reset, the electric control button is extended and reset to wait for the signal 237 to be extended and shortened if the electric control air rod 21 is extended and reset. The existence of the damping sleeve 234 is to avoid vibration generated during the operation of the broken pick body 22 to enable the magnetic block 235 to move, so that the control button 237 is touched by mistake, the magnetic block 235 can adopt a coated neodymium-iron-boron magnet, the neodymium-iron-boron magnet has extremely high magnetic energy product and coercive force, the magnetic attraction of the neodymium-iron-boron magnet is ensured to enable the neodymium-iron-boron magnet to move, the alloy pick 23 is made of an alloy material, and meanwhile, the iron content in the alloy material is enabled to be extremely large, so that the magnetic attraction is avoided between the alloy pick 23 and the magnetic block 235. When the automatic control device is used, the electric control telescopic air rod 21 and the crushing pick machine body 22 are controlled to be started by the master control, the electric control telescopic air rod 21 drives the crushing pick machine body 22 to move downwards, the crushing pick machine body 22 crushes concrete blocks in contact, if reinforcing steel bars exist at the lower end of the crushing pick machine body 22, the reinforcing steel bars and the magnetic blocks 235 attract each other magnetically, the magnetic blocks 235 move downwards, the control button 237 is triggered, the crushing single bodies are stopped, and after all the crushing single bodies are processed, the master control controls all the electric control telescopic air rods 21 to reset.
Referring to fig. 1 and 6, the vibration assembly 3 is disposed at an output end of the stepping conveyor 1, the vibration assembly 3 includes a shock mount 31, a vibration conveying channel 32 and a vibration motor 33, the vibration conveying channel 32 is mounted on the shock mount 31 through an elastic rod, and an output end of the vibration motor 33 is connected with the vibration conveying channel 32. The vibration motor 33 is started to continuously vibrate the reinforced concrete located inside the vibration conveying passage 32, and the reinforced concrete blocks in the demolition assembly 2 are impacted by the crushing pick, so that cracks are fully distributed on the concrete blocks, and therefore, the reinforced concrete blocks are separated from the concrete blocks under the vibration condition.
Referring to fig. 1 and 7, the sorting assembly 4 is disposed at an output end of the vibration assembly 3, the sorting assembly 4 includes an electric module 41, a blocking channel 42 is mounted on a moving end of the electric module 41, a moving direction of the blocking channel 42 is perpendicular to a moving direction of a material, the electric module 41 drives the blocking channel 42 to reciprocate, a rotating plate 43 is hinged to one side of the blocking channel 42, which faces the vibration assembly 3, the rotating plate 43 is driven to rotate by a motor, a collecting box 44 is disposed at a lower end of the rotating plate 43, a belt conveyor is disposed at an output end of the collecting box 44, the other end of the belt conveyor is disposed above a feeding end of the stepping conveyor 1, and a magnetic separator is disposed at an output end of the blocking channel 42. The width of the blocking channel 42 is designed according to the diameter of the collected reinforcing steel bars, so that the width of the blocking channel 42 is slightly larger than the diameter of the reinforcing steel bars, and only the reinforcing steel bars completely separated from concrete can pass through the blocking channel 42, but the reinforcing steel bars blocked by the blocking channel 42 prove that more concrete is attached to the blocking channel 42, when the blocking channel 42 is screened, the blocking channel 42 is pushed by the electric module 41 to move, the blocking channel 42 is prevented from being blocked by the reinforcing steel bars attached with more concrete, the screening is invalid, then the motor drives the rotating plate 43 to rotate, the reinforcing steel bars blocked by the blocking channel 42 enter the collecting box 44, then the reinforcing steel bars and small concrete blocks passing through the blocking channel 42 are separated by the magnetic separator again under the transportation of the belt conveyor.
The electric control telescopic air rod 21 is reset to a single working time period from the maximum contraction state to the maximum expansion state; during the single operating period, the half-toothed gear 16 and the rack 17 are separated from engagement. In the single operation period, the vibration conveying channel 32 and the vibration motor 33 are in an operation state, and vice versa. The electric module 41 drives the blocking passage 42 to reciprocate, the reciprocation is divided into forward and backward, during a certain single operation period, the electric module 41 drives the blocking passage 42 to advance, and then during the next single operation period, the electric module 41 drives the blocking passage 42 to retreat, and the motor drives the rotating plate 43 to move downwards and reset to be positioned between two adjacent single operation periods. Through the general accuse that sets up, be convenient for control the inside power consumption component of separating mechanism, general accuse control circuit can realize through the simple programming of the person skilled in the art, belongs to the common sense in the art, only uses it, does not reform transform, so no more detailed description control mode and circuit connection.
Step four, delivering the concrete separated by the separating mechanism into a collecting box, cleaning the separated steel bars, and storing for later use;
and fifthly, putting the concrete in the collecting box into a secondary crusher to crush again to obtain primary aggregate, and screening the aggregate according to the particle size by using a screening machine to obtain aggregates with different grades, namely the recycled aggregate.
Wherein, the secondary crusher adopts a hammer crusher.
And step six, the recycled aggregate is used for producing concrete and mortar with corresponding strength grades or preparing building material products such as building blocks, wallboards, floor tiles and the like.
For example, the coarse and fine aggregates can be used for road pavement base after being added with the curing materials; the waste pavement asphalt mixture can be directly used for recycling asphalt concrete according to a proper proportion; the waste road concrete can be processed into recycled aggregate for preparing recycled concrete.
While the application has been described above with reference to the accompanying drawings, it will be apparent that the application is not limited to the embodiments described above, but is intended to be within the scope of the application, as long as such insubstantial modifications are made by the method concepts and technical solutions of the application, or the concepts and technical solutions of the application are applied directly to other occasions without any modifications.
Claims (8)
1. The construction waste recycling process is characterized by comprising the following steps of:
firstly, conveying waste reinforced concrete into a primary crusher through a belt conveyor to perform primary crushing, so that large reinforced concrete blocks are changed into small reinforced concrete blocks;
step two, conveying the crushed small reinforced concrete blocks into a first sorting mechanism for screening, wherein the small reinforced concrete blocks are screened into two parts, the first part is pure concrete blocks, and the second part is reinforced concrete adhered together;
step three, the pure concrete blocks of the first part are sent into a collecting box, and meanwhile, the reinforced concrete adhered together of the second part is sent into a separating mechanism, so that the reinforced concrete adhered together are separated;
the separating mechanism in the third step comprises a stepping conveyor (1), a breaking assembly (2), a vibrating assembly (3), a sorting assembly (4) and a master control;
the automatic feeding device comprises a stepping conveyor (1), a crushing assembly (2) and a plurality of detection grooves (233), wherein the crushing assembly (2) is arranged right above the stepping conveyor (1), each crushing assembly comprises a crushing single body which is distributed in a matrix array, each crushing single body comprises an electric control telescopic air rod (21), the lower end of each electric control telescopic air rod (21) is connected with a crushing pick machine body (22) through a connecting frame, the output end of each crushing pick machine body (22) is provided with an alloy pick (23), each alloy pick (23) is divided into a cylinder (231) and a pick mouth (232), the lower end of each cylinder (231) is provided with a detection groove (233), the top of each detection groove (233) is provided with a damping sleeve (234), the inner top end of each damping sleeve (234) is provided with a magnetic block (235) which is magnetically attracted with a reinforcing steel bar, the lower end of each magnetic block (235) is provided with a reed (236) which supports the corresponding electric control telescopic air rod (21) and a crushing pick (22), one side of the lower end of each magnetic block (235) is provided with a control telescopic air rod (237) which is controlled to be closed, and the maximum telescopic air rod (21) is reset to the maximum working time from the electric control telescopic rod to the maximum telescopic machine body (237);
step four, delivering the concrete separated by the separating mechanism into a collecting box, cleaning the separated steel bars, and storing for later use;
fifthly, putting the concrete in the collecting box into a secondary crusher to crush again to obtain primary aggregate, and screening the aggregate according to the particle size by using a screening machine to obtain aggregates with different grades, namely the recycled aggregate;
and step six, the recycled aggregate is used for producing concrete and mortar with corresponding strength grades or preparing building material products such as building blocks, wallboards, floor tiles and the like.
2. The construction waste recycling process according to claim 1, wherein: in the second step, the sorting mechanism is a magnetic separator.
3. The construction waste recycling process according to claim 1, wherein: in the third step, the stepping conveyor (1) comprises a frame (11), rotating shafts (12) rotatably arranged at two ends of the frame (11), a conveying belt (13) sleeved on the rotating shafts (12) and a stepping motor (14), a rotating disc (15) is arranged in the center of the inside of the frame (11), a half-tooth gear (16) is rotatably arranged in the rotating disc (15), the output end of the stepping motor (14) is connected with the axle center of the half-tooth gear (16), two ends of the rotating shafts (12) are both connected with gears in the axle center, racks (17) are meshed on the two gears, the racks (17) are partially positioned in the rotating disc (15) and meshed with the half-tooth gear (16), and in the single working time period, the half-tooth gear (16) and the racks (17) are separated from each other to be meshed.
4. The construction waste recycling process according to claim 1, wherein: in the third step, the master control transmits signals for stretching and shortening the electric control telescopic air rod (21) twice, and in the stretching stage of the electric control telescopic air rod (21), if the control button (237) is triggered, stretching is stopped, and the signal for shortening is waited to be received for resetting.
5. The construction waste recycling process according to claim 1, wherein: vibration subassembly (3) set up at step-type conveyer (1) output, vibration subassembly (3) include shock mount (31), vibrations conveying passageway (32) and vibrating motor (33), vibrations conveying passageway (32) install on shock mount (31) through the elastic rod, vibrating motor (33) output and vibrations conveying passageway (32) connect in single operating time period, vibrations conveying passageway (32) and vibrating motor (33) are operational mode, on the contrary.
6. The construction waste recycling process according to claim 1, wherein: the sorting assembly (4) is arranged at the output end of the vibration assembly (3), the sorting assembly (4) comprises an electric module (41), a blocking channel (42) is arranged at the moving end of the electric module (41), the moving direction of the electric module (41) is perpendicular to the moving direction of the material, the electric module (41) drives the blocking channel (42) to reciprocate, the reciprocating motion is divided into forward and backward motions, the electric module (41) drives the blocking channel (42) to advance in a single working time period, and then the electric module (41) drives the blocking channel (42) to retreat in the next single working time period.
7. The construction waste recycling process according to claim 6, wherein: the blocking channel (42) is hinged towards one side of the vibration component (3) and is provided with a rotating plate (43), the rotating plate (43) is driven to rotate by a motor, the lower end of the rotating plate (43) is provided with a collecting box (44), and the motor drives the rotating plate (43) to move downwards and reset to be positioned between two adjacent single working time periods.
8. The construction waste recycling process according to claim 7, wherein: the output end of the collecting box (44) is provided with a belt conveyor, the other end of the belt conveyor is arranged above the feeding end of the stepping conveyor (1), and the output end of the blocking channel (42) is provided with a magnetic separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311226380.6A CN117225863B (en) | 2023-09-21 | 2023-09-21 | Construction waste recycling process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311226380.6A CN117225863B (en) | 2023-09-21 | 2023-09-21 | Construction waste recycling process |
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| CN117225863A true CN117225863A (en) | 2023-12-15 |
| CN117225863B CN117225863B (en) | 2024-03-12 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005334844A (en) * | 2004-05-31 | 2005-12-08 | Akatsuki Kinzoku Kogyo:Kk | Crusher of concrete pillar |
| CN104863378A (en) * | 2015-05-08 | 2015-08-26 | 中国建筑第八工程局有限公司 | Repairing method for concrete mold swelling |
| KR20190051695A (en) * | 2017-11-07 | 2019-05-15 | 주식회사 재경엔지니어링 | Method for enlarging concrete structure using metal sensitive drilling device |
| CN209631800U (en) * | 2019-03-15 | 2019-11-15 | 马朋刚 | A kind of refuse disposal installation |
| CN111005380A (en) * | 2019-12-05 | 2020-04-14 | 安徽建筑大学 | Construction method for crushing, cutting and trimming concrete |
| CN111298890A (en) * | 2020-03-01 | 2020-06-19 | 代国治 | Bridge construction waste crushing mechanism |
| CN112044568A (en) * | 2020-09-01 | 2020-12-08 | 郭亚征 | Building solid waste garbage classification and recovery treatment equipment and classification and recovery treatment method |
| CN112619850A (en) * | 2020-11-30 | 2021-04-09 | 洛阳兰琦建材有限公司 | Reinforced concrete crushing and separating system |
| CN114950686A (en) * | 2022-05-28 | 2022-08-30 | 吕彦茹 | Construction waste treatment device for urban construction |
| CN115467328A (en) * | 2022-10-26 | 2022-12-13 | 中交第三公路工程局有限公司 | Pile head safety breaking device and method based on lossless steel bars |
| CN218078294U (en) * | 2022-08-03 | 2022-12-20 | 江苏华宏科技股份有限公司 | Material shaking mechanism for crushing concrete beam |
-
2023
- 2023-09-21 CN CN202311226380.6A patent/CN117225863B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005334844A (en) * | 2004-05-31 | 2005-12-08 | Akatsuki Kinzoku Kogyo:Kk | Crusher of concrete pillar |
| CN104863378A (en) * | 2015-05-08 | 2015-08-26 | 中国建筑第八工程局有限公司 | Repairing method for concrete mold swelling |
| KR20190051695A (en) * | 2017-11-07 | 2019-05-15 | 주식회사 재경엔지니어링 | Method for enlarging concrete structure using metal sensitive drilling device |
| CN209631800U (en) * | 2019-03-15 | 2019-11-15 | 马朋刚 | A kind of refuse disposal installation |
| CN111005380A (en) * | 2019-12-05 | 2020-04-14 | 安徽建筑大学 | Construction method for crushing, cutting and trimming concrete |
| CN111298890A (en) * | 2020-03-01 | 2020-06-19 | 代国治 | Bridge construction waste crushing mechanism |
| CN112044568A (en) * | 2020-09-01 | 2020-12-08 | 郭亚征 | Building solid waste garbage classification and recovery treatment equipment and classification and recovery treatment method |
| CN112619850A (en) * | 2020-11-30 | 2021-04-09 | 洛阳兰琦建材有限公司 | Reinforced concrete crushing and separating system |
| CN114950686A (en) * | 2022-05-28 | 2022-08-30 | 吕彦茹 | Construction waste treatment device for urban construction |
| CN218078294U (en) * | 2022-08-03 | 2022-12-20 | 江苏华宏科技股份有限公司 | Material shaking mechanism for crushing concrete beam |
| CN115467328A (en) * | 2022-10-26 | 2022-12-13 | 中交第三公路工程局有限公司 | Pile head safety breaking device and method based on lossless steel bars |
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| CN117225863B (en) | 2024-03-12 |
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