CN112144914A - Waste building classification dismantling method - Google Patents
Waste building classification dismantling method Download PDFInfo
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- CN112144914A CN112144914A CN202010995866.6A CN202010995866A CN112144914A CN 112144914 A CN112144914 A CN 112144914A CN 202010995866 A CN202010995866 A CN 202010995866A CN 112144914 A CN112144914 A CN 112144914A
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- Prior art keywords
- building
- particles
- steel bar
- cable
- net rack
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/36—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro in more than one direction
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
- E04G23/081—Wrecking of buildings using hydrodemolition
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
- E04G23/082—Wrecking of buildings using shears, breakers, jaws and the like
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The application discloses a method for dismantling waste buildings in a classified manner, which comprises the following steps of dismantling a metal door, a metal window and a metal pendant on a building; pushing the building to by using an excavator; cutting the building while spraying water and mist by using a cutting machine, and cutting the building into a plurality of independent unconnected blocks; dismantling a shovel head on an excavator and replacing the shovel head with a crushing head, then vibrating and crushing the blocks into particles and a reinforcing steel bar net rack by using the crushing head, vibrating and separating wood and plastic, and respectively collecting the wood and the plastic separately; taking out the reinforcing steel bar net rack from the particle pile, impacting the reinforcing steel bar net rack by using water flow with the pressure of 20Mpa, shaking off cement particles remained on the reinforcing steel bar net rack, drying the reinforcing steel bar net rack by using air flow, and then compressing the reinforcing steel bar net rack into a metal ingot; and taking the cable and the data cable out of the particle stack, collecting the collected cable and the data cable, placing the collected cable and the data cable under an extruder for extrusion, and crushing cement blocks stuck on the cable and the data cable.
Description
Technical Field
The invention relates to the field of urban construction, in particular to a classified dismantling method for waste buildings.
Background
At present, the urban updating and construction speed is high, a large number of old buildings are dismantled every day, two existing old building dismantling methods are provided, one is dismantling by using an excavator, the other is blasting dismantling, but in the existing dismantling process, no matter the excavator or blasting dismantling is adopted, but no matter the excavator or blasting dismantling is adopted, the buildings are completely pushed, in the process of completely pushing the buildings, classification dismantling of the buildings is not realized, and huge resource waste exists in the dismantling process.
Because the prior building technology is relatively lagged behind and building material resources are relatively deficient, most old buildings are bottom-layer buildings and do not have tall buildings, and most old buildings are pushed to be dismantled by using an excavator at present.
Disclosure of Invention
The invention provides a method for classifying and dismantling waste buildings aiming at the problems.
The technical scheme adopted by the invention is as follows:
a method for classifying and dismantling a waste building comprises the following steps,
s1: removing metal doors, metal windows and metal ornaments on the building;
the metal door, the metal window and the metal hanging piece on the building belong to recyclable objects, and are firstly disassembled by a manual disassembling method, so that precious resources can be saved.
S2: pushing the building to by using an excavator;
s3: cutting the building while spraying water and mist by using a cutting machine, and cutting the building into a plurality of independent unconnected blocks;
utilize the cutting machine to cut into independent cubic thing for convenient follow-up the breakage, and spray water smoke one side when the cutting then dust splashes in order to prevent to cut, simultaneously because high-speed rotatory can produce a large amount of heats when the cutting machine cuts, spray water smoke and can play the effect that absorbs the heat cooling, avoid initiating wall paper, decorative cotton, plastics and electric wire etc. on the cubic thing and fire the burning.
S4: dismantling a shovel head on an excavator and replacing the shovel head with a crushing head, then vibrating and crushing the blocks into particles and a reinforcing steel bar net rack by using the crushing head, vibrating and separating wood and plastic, and respectively collecting the wood and the plastic separately;
the wood and the plastic are separately collected so as to realize reutilization, and the blocky objects are shattered into particles and a reinforcing steel bar net rack, so that the reinforcing steel bars can be recycled;
s5: taking out the reinforcing steel bar net rack from the particle pile, impacting the reinforcing steel bar net rack by using water flow with the pressure of 20Mpa, shaking off cement particles remained on the reinforcing steel bar net rack, drying the reinforcing steel bar net rack by using air flow, and then compressing the reinforcing steel bar net rack into a metal ingot;
utilize the rivers impact reinforcing bar net rack of 20Mpa pressure to dash and fall the cement granule on the reinforcing bar net rack, and because the pressure of rivers is great, the last cement granule of reinforcing bar net rack not only can be fallen by dashing, but also can be smashed littleer by the impact, utilize the air current to weather the reinforcing bar net rack after compress be for convenient follow-up transportation.
S6: taking out the cable and the data cable from the particle stack, collecting the collected cable and the data cable, placing the collected cable and the data cable under an extruder for extrusion, and crushing cement blocks stuck on the cable and the data cable;
because the cables and the data cables are buried in a lot of buildings at present, and metal components in the cables and the data cables can be recycled, the components of the data cables behind the cables are collected from the particle heap and then recycled;
s7: baking the particles with the steel bar net rack, the cables, the data cables, the wood and the plastics taken out by open fire, placing the particles into a vibrating screen after the particles are baked by the open fire, and vibrating and collecting fine sand in the particles;
the baking by naked fire is used for burning off decorations such as paper, decorative plane materials and the like attached to the surface of a scientific and technical object, and after burning is finished, the particle is subjected to vibration screening, so that a part of fine sand particles can be screened off in the vibration screening process, and can be recycled without other treatment;
s8: placing the particles after the fine sand is shaken off into a friction crusher to be crushed, and crushing the particles into fine sand;
because the diameter of the particles is larger, the particles can only be used as ballast for building roads, and in order to improve the utilization value of the particles, the particles are crushed into fine sand, so that the particles can be used as building raw materials;
s9: and collecting the fine sand, and then placing the fine sand in a filter screen for filtering to remove metal block particles in the fine sand.
Since the metal block particles are not ground by the friction crusher, the metal block particles are further filtered by a filter net which filters the metal block particles.
In conclusion, the scheme realizes the partition and demolition of the building, has high demolition efficiency, realizes the respective recycling of the construction waste resources, and has high recycling efficiency
Optionally, when the building is cut by the cutting machine, the temperature of the water mist is controlled to be 20-30 ℃, and after the water mist is sprayed on the surface of the building for 5-10 min, the building is cut by the cutting machine.
The temperature of the water mist is controlled to be 20-30 ℃ so as to improve the heat absorption efficiency of the water mist to the maximum extent, and the water mist is sprayed for 5-10 min before the cutting machine cuts the building so as to attach a layer of water drops on the surface of the building, so that the water drops can play a role in lubricating when the cutting machine cuts the building at the moment, and the abrasion to the cutting machine is reduced.
Optionally, when the building is cut by the cutting machine, the building is cut into rectangular blocks, and the mass of each rectangular block is controlled to be 0.2-0.5 ton.
The mass of the cuboid blocks is controlled to be 0.2 ton to 0.5 ton for facilitating the subsequent crushing action.
Optionally, when the crushing head is used for crushing the block, the crushing head is used for impacting around the periphery of the block, the impacting direction of the crushing head points to the center of the block, and the crushing head is always in contact with the cement or brick part of the block.
The crushing head impacts around the periphery of the block to maximally crush the particles, and the crushing mode is equivalent to crushing along the weakest part of the block, so that the impact strength during crushing can be reduced, and the service life of the crushing head is prolonged. The crushing head is always in contact with the cement or brick part of the block to improve the crushing efficiency, so that the phenomenon of idle driving of the crushing head is avoided, and the reduction of the service life of the crushing head due to the idle driving is avoided.
Optionally, when the water flow with the pressure of 20Mpa is used for impacting the steel bar net rack, the water flow and the air flow are mixed firstly and then impact the steel bar net rack.
Utilize the air current to go the striking reinforcing bar rack again after mixing with partial rivers, one such is for improving the impact force of rivers, ensures that the reinforcing bar rack erodees cleaner, and the air current mixes the back with rivers simultaneously, has partial bubble in the rivers, and these bubbles can form the impact effect to the cement piece after striking the cement piece, can play the effect of smashing the cement piece like this.
Optionally, the cable and the data cable are collected and then repeatedly rolled by a roller, and then the plastic on the surface is cut off by a cutter.
The effect of utilizing the change roller to roll in cable and data cable repeatedly can reduce the adhesive force of plastic to the wire, can reduce the adhesive strength of plastic to the wire like this, and the cutter machine of being convenient for cuts the plastic from the wire.
Optionally, when the vibrating screen is used for vibrating and screening the particles, the screen periodically and alternately vibrates longitudinally and transversely in sequence.
The vibrations screen cloth is in proper order the cycle in turn carry out longitudinal vibration and horizontal vibrations can shake the particulate matter littleer when the shale shaker, and can let and take place relative wearing and tearing between the particulate matter, improves the recycle efficiency of particulate matter.
Optionally, when the fine sand is filtered by using the filter screen, the fine sand sequentially passes through the filter screens with the diameters of 0.3cm, 0.2cm and 0.1cm, and meshes of the filter screens are square meshes.
The purpose of filtering by adopting three filter screens is to realize grading utilization, the smallest fine sand can be directly used as the yarn for the building, and the coarsest sand can be used as the building ballast.
Optionally, the fine sand is subjected to lateral oscillation of the screen as it passes through the screen.
Optionally, diesel is sprayed into the particles before the particles are baked by using open fire.
The purpose of spraying diesel oil is in order to let diesel oil can soak the particulate matter and pile, and it has diesel oil to ensure that wall paper and decorative cotton all can soak, and the naked light is baked like this, and wall paper and decorative cotton can the fast combustion, ensure not to have and remain.
The invention has the beneficial effects that: the method realizes the partition and the demolition of the building, has high demolition efficiency, realizes the respective recycling of the construction waste resources, and has high recycling efficiency
The specific implementation mode is as follows:
the present invention is described in detail below.
Example 1
A method for classifying and dismantling a waste building comprises the following steps,
s1: removing metal doors, metal windows and metal ornaments on the building;
the metal door, the metal window and the metal hanging piece on the building belong to recyclable objects, and are firstly disassembled by a manual disassembling method, so that precious resources can be saved.
S2: pushing the building to by using an excavator;
s3: cutting the building while spraying water and mist by using a cutting machine, and cutting the building into a plurality of independent unconnected blocks;
utilize the cutting machine to cut into independent cubic thing for convenient follow-up the breakage, and spray water smoke one side when the cutting then dust splashes in order to prevent to cut, simultaneously because high-speed rotatory can produce a large amount of heats when the cutting machine cuts, spray water smoke and can play the effect that absorbs the heat cooling, avoid initiating wall paper, decorative cotton, plastics and electric wire etc. on the cubic thing and fire the burning.
S4: dismantling a shovel head on an excavator and replacing the shovel head with a crushing head, then vibrating and crushing the blocks into particles and a reinforcing steel bar net rack by using the crushing head, vibrating and separating wood and plastic, and respectively collecting the wood and the plastic separately;
the wood and the plastic are separately collected so as to realize reutilization, and the blocky objects are shattered into particles and a reinforcing steel bar net rack, so that the reinforcing steel bars can be recycled;
s5: taking out the reinforcing steel bar net rack from the particle pile, impacting the reinforcing steel bar net rack by using water flow with the pressure of 20Mpa, shaking off cement particles remained on the reinforcing steel bar net rack, drying the reinforcing steel bar net rack by using air flow, and then compressing the reinforcing steel bar net rack into a metal ingot;
utilize the rivers impact reinforcing bar net rack of 20Mpa pressure to dash and fall the cement granule on the reinforcing bar net rack, and because the pressure of rivers is great, the last cement granule of reinforcing bar net rack not only can be fallen by dashing, but also can be smashed littleer by the impact, utilize the air current to weather the reinforcing bar net rack after compress be for convenient follow-up transportation.
S6: taking out the cable and the data cable from the particle stack, collecting the collected cable and the data cable, placing the collected cable and the data cable under an extruder for extrusion, and crushing cement blocks stuck on the cable and the data cable;
because the cables and the data cables are buried in a lot of buildings at present, and metal components in the cables and the data cables can be recycled, the components of the data cables behind the cables are collected from the particle heap and then recycled;
s7: baking the particles with the steel bar net rack, the cables, the data cables, the wood and the plastics taken out by open fire, placing the particles into a vibrating screen after the particles are baked by the open fire, and vibrating and collecting fine sand in the particles;
the baking by naked fire is used for burning off decorations such as paper, decorative plane materials and the like attached to the surface of a scientific and technical object, and after burning is finished, the particle is subjected to vibration screening, so that a part of fine sand particles can be screened off in the vibration screening process, and can be recycled without other treatment;
s8: placing the particles after the fine sand is shaken off into a friction crusher to be crushed, and crushing the particles into fine sand;
because the diameter of the particles is larger, the particles can only be used as ballast for building roads, and in order to improve the utilization value of the particles, the particles are crushed into fine sand, so that the particles can be used as building raw materials;
s9: and collecting the fine sand, and then placing the fine sand in a filter screen for filtering to remove metal block particles in the fine sand.
Since the metal block particles are not ground by the friction crusher, the metal block particles are further filtered by a filter net which filters the metal block particles.
In conclusion, the scheme realizes the partition and demolition of the building, has high demolition efficiency, realizes the respective recycling of the construction waste resources, and has high recycling efficiency
In another embodiment of the invention, when the cutting machine is used for cutting the building, the temperature of the water mist is controlled to be 20-30 ℃, and the cutting machine is used for cutting the building after the water mist is sprayed on the surface of the building for 5-10 min.
The temperature of the water mist is controlled to be 20-30 ℃ so as to improve the heat absorption efficiency of the water mist to the maximum extent, and the water mist is sprayed for 5-10 min before the cutting machine cuts the building so as to attach a layer of water drops on the surface of the building, so that the water drops can play a role in lubricating when the cutting machine cuts the building at the moment, and the abrasion to the cutting machine is reduced.
In another embodiment of the present invention, when the building is cut by the cutting machine, the building is cut into rectangular blocks, and the mass of the rectangular blocks is controlled to be 0.2 ton to 0.5 ton.
The mass of the cuboid blocks is controlled to be 0.2 ton to 0.5 ton for facilitating the subsequent crushing action.
In another embodiment of the invention, when the crushing head is used to crush the block, the crushing head is used to impact around the periphery of the block, the impact direction of the crushing head is directed to the center of the block, and the crushing head is always in contact with the cement or brick portion of the block.
The crushing head impacts around the periphery of the block to maximally crush the particles, and the crushing mode is equivalent to crushing along the weakest part of the block, so that the impact strength during crushing can be reduced, and the service life of the crushing head is prolonged. The crushing head is always in contact with the cement or brick part of the block to improve the crushing efficiency, so that the phenomenon of idle driving of the crushing head is avoided, and the reduction of the service life of the crushing head due to the idle driving is avoided.
In another embodiment of the present invention, when the water flow with the pressure of 20Mpa is used to impact the steel bar net rack, the water flow and the air flow are mixed and then impact the steel bar net rack.
Utilize the air current to go the striking reinforcing bar rack again after mixing with partial rivers, one such is for improving the impact force of rivers, ensures that the reinforcing bar rack erodees cleaner, and the air current mixes the back with rivers simultaneously, has partial bubble in the rivers, and these bubbles can form the impact effect to the cement piece after striking the cement piece, can play the effect of smashing the cement piece like this.
In another embodiment of the present invention, the cable and the data cable are collected and then rolled repeatedly by a roller, and then the plastic on the surface is cut off by a cutter.
The effect of utilizing the change roller to roll in cable and data cable repeatedly can reduce the adhesive force of plastic to the wire, can reduce the adhesive strength of plastic to the wire like this, and the cutter machine of being convenient for cuts the plastic from the wire.
In another embodiment of the invention, the screen is vibrated periodically and alternately in the longitudinal direction and the transverse direction when the particles are screened by vibrating the screen.
The vibrations screen cloth is in proper order the cycle in turn carry out longitudinal vibration and horizontal vibrations can shake the particulate matter littleer when the shale shaker, and can let and take place relative wearing and tearing between the particulate matter, improves the recycle efficiency of particulate matter.
In another embodiment of the present invention, when fine sand is filtered by using the filter screen, the fine sand passes through the filter screen with the diameter of 0.3cm, 0.2cm and 0.1cm in sequence, and the mesh of the filter screen is a square mesh.
The purpose of filtering by adopting three filter screens is to realize grading utilization, the smallest fine sand can be directly used as the yarn for the building, and the coarsest sand can be used as the building ballast.
In another embodiment of the invention, the fine sand is oscillated laterally as it passes through the screen.
In another embodiment of the present invention, diesel is sprayed into the particles before the particles are baked with open fire.
The purpose of spraying diesel oil is in order to let diesel oil can soak the particulate matter and pile, and it has diesel oil to ensure that wall paper and decorative cotton all can soak, and the naked light is baked like this, and wall paper and decorative cotton can the fast combustion, ensure not to have and remain.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and can be directly or indirectly applied to other related fields of technology.
Claims (10)
1. A method for classifying and dismantling abandoned buildings is characterized by comprising the following steps,
s1: removing metal doors, metal windows and metal ornaments on the building;
s2: pushing the building to by using an excavator;
s3: cutting the building while spraying water and mist by using a cutting machine, and cutting the building into a plurality of independent unconnected blocks;
s4: dismantling a shovel head on an excavator and replacing the shovel head with a crushing head, then vibrating and crushing the blocks into particles and a reinforcing steel bar net rack by using the crushing head, vibrating and separating wood and plastic, and respectively collecting the wood and the plastic separately;
s5: taking out the reinforcing steel bar net rack from the particle pile, impacting the reinforcing steel bar net rack by using water flow with the pressure of 20Mpa, shaking off cement particles remained on the reinforcing steel bar net rack, drying the reinforcing steel bar net rack by using air flow, and then compressing the reinforcing steel bar net rack into a metal ingot;
s6: taking out the cable and the data cable from the particle stack, collecting the collected cable and the data cable, placing the collected cable and the data cable under an extruder for extrusion, and crushing cement blocks stuck on the cable and the data cable;
s7: baking the particles with the steel bar net rack, the cables, the data cables, the wood and the plastics taken out by open fire, placing the particles into a vibrating screen after the particles are baked by the open fire, and vibrating and collecting fine sand in the particles;
s8: placing the particles after the fine sand is shaken off into a friction crusher to be crushed, and crushing the particles into fine sand;
s9: and collecting the fine sand, and then placing the fine sand in a filter screen for filtering to remove metal block particles in the fine sand.
2. The demolition method by category of the waste building according to claim 1, wherein the temperature of the water mist is controlled at 20 ℃ to 30 ℃ when the building is cut by the cutter, and the building is cut by the cutter after the water mist is sprayed on the surface of the building for 5min to 10 min.
3. The demolition method by category of waste buildings according to claim 1, wherein the building is cut into rectangular blocks by a cutter, and the mass of the rectangular blocks is controlled to be 0.2 ton to 0.5 ton.
4. The demolition method by classification of waste buildings according to claim 1, wherein the block is crushed by the crushing head, the crushing head is collided around the periphery of the block with the collision direction of the crushing head directed to the center of the block, and the crushing head is always in contact with the cement or brick portion of the block.
5. The demolition work by classification of waste buildings according to claim 1, wherein the water current and the air current are mixed and then impact the net frame of the reinforcing bars by the water current of 20Mpa pressure.
6. The demolition method for waste buildings according to claim 1, wherein the cable and the data cable are repeatedly rolled by a roller after being collected, and then the surface plastic is cut by a cutter.
7. The demolition method of waste buildings as claimed in claim 1, wherein the screen is periodically and alternately vibrated longitudinally and transversely in sequence while the screen is vibrated to screen the particles.
8. The method of classifying and dismantling a waste building according to claim 1, wherein the fine sand is filtered by a filter net, the fine sand is passed through the filter net having a diameter of 0.3cm, 0.2cm, 0.1cm in this order, and the mesh of the filter net is a square mesh.
9. The demolition method of a waste building classification as recited in claim 8, wherein the fine sand is subjected to a lateral swing of the screen while passing through the screen.
10. The demolition method for waste buildings according to claim 1, wherein diesel oil is sprayed into the particulate matter before the particulate matter is baked by open fire.
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| CN202010995866.6A CN112144914A (en) | 2020-09-21 | 2020-09-21 | Waste building classification dismantling method |
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| CN202010995866.6A CN112144914A (en) | 2020-09-21 | 2020-09-21 | Waste building classification dismantling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114776081A (en) * | 2022-04-01 | 2022-07-22 | 广东拓南建设工程有限公司 | Multi-structure classification dismantling process in building engineering |
| CN115680317A (en) * | 2022-10-31 | 2023-02-03 | 武汉建工集团股份有限公司 | Multifunctional waste building forcible entry robot and forcible entry method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114776081A (en) * | 2022-04-01 | 2022-07-22 | 广东拓南建设工程有限公司 | Multi-structure classification dismantling process in building engineering |
| CN115680317A (en) * | 2022-10-31 | 2023-02-03 | 武汉建工集团股份有限公司 | Multifunctional waste building forcible entry robot and forcible entry method |
| CN115680317B (en) * | 2022-10-31 | 2023-08-29 | 武汉建工集团股份有限公司 | Multifunctional waste building breaking and disassembling robot and breaking and disassembling method |
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