CN120734080A - Fine processing production line and production method for construction waste - Google Patents
Fine processing production line and production method for construction wasteInfo
- Publication number
- CN120734080A CN120734080A CN202511272252.4A CN202511272252A CN120734080A CN 120734080 A CN120734080 A CN 120734080A CN 202511272252 A CN202511272252 A CN 202511272252A CN 120734080 A CN120734080 A CN 120734080A
- Authority
- CN
- China
- Prior art keywords
- sorting
- materials
- screen
- plastic film
- crushing
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/35—Shredding, crushing or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/80—Rubber waste, e.g. scrap tyres
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明公开了一种建筑垃圾精细化处理生产线及生产方法。所述精细化处理生产线包括分选线和破碎线；分选线包括预分选单元、一级分选单元、二级分选单元、三级分选单元、四级分选单元，得到塑料薄膜、木材、PVC、橡胶、砖渣基混合料、泡沫、石粉、砂粒和金属；破碎线用于对所述分选线中得到的砖渣基混合料和粉料进行破碎、筛分、磁选和风选，得到塑料薄膜、石子、石粉和金属。本发明还公开了一种利用该建筑垃圾精细化处理生产线进行建筑垃圾精细化处理的生产方法。本发明解决了现有技术难以实现对建筑垃圾中的塑料薄膜进行精细化分离的问题，提高了建筑垃圾中塑料薄膜的回收利用率。
The present invention discloses a production line and a production method for fine processing of construction waste. The fine processing production line includes a sorting line and a crushing line; the sorting line includes a pre-sorting unit, a primary sorting unit, a secondary sorting unit, a tertiary sorting unit, and a quaternary sorting unit to obtain plastic film, wood, PVC, rubber, brick slag-based mixture, foam, stone powder, sand, and metal; the crushing line is used to crush, screen, magnetically separate, and air-separate the brick slag-based mixture and powder obtained in the sorting line to obtain plastic film, gravel, stone powder, and metal. The present invention also discloses a production method for fine processing of construction waste using the construction waste fine processing production line. The present invention solves the problem that the existing technology is difficult to achieve fine separation of plastic film in construction waste, and improves the recycling rate of plastic film in construction waste.
Description
Technical Field
The invention relates to a construction waste refined treatment production line and a production method, and belongs to the technical field of construction waste recovery.
Background
The construction waste is waste generated in the process of constructing, laying or dismantling various buildings, structures, pipe networks and the like by construction units or individuals. The construction waste contains plastic film, wood, PVC, rubber, waste metal, stone powder, brick residue, foam and other material components. In order to recycle the plastic film therein for construction tubing, for oil refining, and as RDF fuel, etc., it is necessary to perform component separation of construction waste.
However, in the technical field of recycling of construction waste, due to the complex components of the construction waste, the plastic film in the construction waste is difficult to separate in a refined manner by the conventional recycling technology at present, and more plastic films still remain in the construction waste, so that the recycling rate of the plastic film is low.
Disclosure of Invention
The invention aims to provide a construction waste fine treatment production line and a production method, which solve the problem that the plastic film in the construction waste is difficult to separate finely in the prior art, and improve the recycling rate of the plastic film in the construction waste.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a construction waste refines processing line, includes sorting line and broken line, the sorting line includes:
a pre-sorting unit for pre-sorting construction waste to remove waste unsuitable for treatment and delivering the remaining material to a primary sorting unit;
the first-stage separation unit adopts a spiral roller screen to sequentially screen the materials according to the particle size from large to small to form a first-stage material entering the bouncing screen, a second-stage material entering a separation room and a third-stage material entering the bar relaxation screen;
The second-stage separation unit comprises a bouncing screen, a separation room and a rod relaxation screen, a plastic film is obtained through the bouncing screen, a plastic film, wood, PVC, rubber and brick residue-based mixture is obtained through the separation room, and the materials are sequentially screened according to the particle size from large to small through the rod relaxation screen to form a fourth-stage material entering the horizontal winnowing machine, a fifth-stage material entering the negative-pressure winnowing machine and a sixth-stage material which is collected;
The three-stage separation unit comprises a horizontal air separator and a negative pressure air separator, wherein brick slag-based mixture and materials containing plastic films are obtained through the horizontal air separator, and brick slag-based mixture and plastic films are obtained through the negative pressure air separator;
the four-stage separation unit comprises a single-layer relaxation sieve for further separating the materials containing the plastic film obtained by the horizontal winnowing machine, and powder and the plastic film are obtained through the single-layer relaxation sieve;
the crushing line is used for further crushing, screening, magnetic separation and winnowing the brick slag-based mixture and powder obtained in the separation line to obtain a plastic film, stones, stone powder and metal.
According to the invention, the first-stage sorting unit sequentially sorts the materials according to the particle size from large to small to form a first-stage material (for example, the particle size is larger than 180 mm), a second-stage material (for example, the particle size is between 50mm and 180 mm), and a third-stage material (for example, the particle size is smaller than 50 mm), and the second-stage sorting unit sequentially sorts the materials according to the particle size from large to small to form a fourth-stage material (for example, the particle size is larger than 30 mm), a fifth-stage material (for example, the particle size is between 8mm and 30 mm) and a sixth-stage material (for example, the particle size is smaller than 8 mm).
Further, the breaking line includes:
The jaw crusher is used for carrying out primary crushing on the brick slag-based mixture and the powder;
The double-layer vibrating screen is used for sequentially screening the materials subjected to primary crushing and secondary crushing from large to small according to the particle size to form materials entering the impact crusher, materials entering the winnowing unit and materials entering the single-layer vibrating screen;
The impact crusher is used for carrying out secondary crushing on materials;
the third magnetic separator is used for carrying out magnetic separation on the materials which are prepared to enter the impact crusher to obtain metal;
The air separation unit is used for carrying out air separation on the materials to obtain a plastic film and stones;
And the single-layer vibrating screen is used for screening the materials again to obtain stones and stone powder.
Further, the brick slag-based mixture and powder obtained in the sorting line are piled in a crushing and feeding heap, and the crushing line further comprises:
the second excavator is used for conveying the materials in the crushing feeding storage yard to the vibrating feeder;
And the vibrating feeder is used for feeding the jaw crusher.
Further, the pre-sorting unit includes:
the first excavator is used for shoveling materials and simultaneously pre-sorting, and comprises a shoveling hopper, wherein the shoveling hopper comprises at least two toothed bars which are arranged at intervals;
the plate chain feeder is used for feeding the pre-sorted materials to the spiral roller screen;
the manual sorting platform is used for removing missing garbage which is not suitable for processing in the feeding process of the plate link chain feeding machine.
Further, the sorting room comprises:
The house body is used for providing a closed environment;
the sorting stations and/or sorting equipment are arranged on the same side in the house body and are used for sorting materials entering the house body;
the sorting bin is used for collecting sorted plastic films, wood, PVC and rubber, is arranged on the outer side of the house body and is communicated with the bottom of the house body through a channel, and is arranged opposite to the sorting station and/or the sorting equipment.
Further, the four-stage sorting unit comprises a manual sorting station arranged between the horizontal winnowing machine and the crushing and feeding stacking field, and the manual sorting station is used for sorting brick residue-based mixture obtained by the horizontal winnowing machine to obtain wood and PVC.
Further, the separation line also comprises an additional separation unit, wherein the additional separation unit comprises a first magnetic separator for carrying out magnetic separation on the brick slag-based mixture obtained in the separation room, a second magnetic separator for carrying out magnetic separation on the fourth-level material, and a foam winnowing machine for carrying out winnowing on the sixth-level material, metals are obtained through the first magnetic separator and the second magnetic separator, and foam particles are obtained through the foam winnowing machine.
Further, both the sorting line and the crushing line comprise atomizing means for spray dust removal.
Further, the plastic film obtained in the sorting line and the crushing line is washed in a washing line, and the washing line comprises:
The multistage shredding unit is used for multistage shredding the plastic film;
The separator is used for separating impurities from the plastic film after the multistage shredding;
The flushing tank is used for flushing the plastic film after impurity separation;
the dehydration packaging system is used for dehydrating and packaging the washed plastic film;
And the water circulation system is used for circularly treating sewage from the separator, the flushing tank and the dehydration packaging system and providing circulating clean water for the separator and the flushing tank.
Based on the same inventive concept, the invention also provides a production method for carrying out construction waste refinement treatment by adopting the construction waste refinement treatment production line, which comprises the following steps:
s0, pre-sorting, namely pre-sorting construction waste, removing waste which is not suitable for treatment, and conveying the rest materials to a first-stage sorting unit;
S1, primary sorting, namely sequentially screening materials by adopting a spiral roller screen according to the particle size from large to small to form a first-stage material entering a bouncing screen, a second-stage material entering a sorting room and a third-stage material entering a bar relaxation screen;
S2, secondary sorting, namely sieving the materials by a bouncing sieve to obtain a plastic film, sorting the materials by a sorting room to obtain a plastic film, wood, PVC, rubber and brick residue-based mixture, and carrying out magnetic separation on the brick residue-based mixture to obtain metal;
S3, three-stage separation, namely horizontally separating the incoming material by adopting a horizontal winnowing machine to obtain a brick slag-based mixture and a material containing a plastic film;
S4, four-stage separation, namely respectively separating the brick residue-based mixture obtained by horizontal air separation and the material containing the plastic film to obtain wood, PVC, powder and the plastic film;
S5, treating the obtained brick residue-based mixture and powder by a crushing line, and further crushing, screening, magnetically separating and winnowing to the obtained brick residue-based mixture and powder to obtain a plastic film, stones, stone powder and metal.
Further, the step of breaking the wire comprises:
S51, primary crushing, namely performing primary crushing on the obtained brick slag-based mixture and powder by adopting a jaw crusher;
S52, vibration sorting, namely sequentially screening the materials subjected to primary crushing and secondary crushing from large to small according to the particle size by adopting a double-layer vibrating screen to form materials entering an impact crusher, materials entering a winnowing unit and materials entering a single-layer vibrating screen, and carrying out magnetic separation on the materials prepared to enter the impact crusher to obtain metal;
S53, third-gear treatment, namely adopting an impact crusher to carry out secondary crushing on the incoming materials, adopting a winnowing unit to winnowing the incoming materials to obtain plastic films and stones, and adopting a single-layer vibrating screen to screen the incoming materials again to obtain stones and stone powder.
Compared with the prior art, the invention has the following beneficial effects:
1. The construction waste fine treatment production line solves the problems that the conventional treatment technology of crushing before sorting is easy to cause plastic film winding to cause difficult fine separation and high energy consumption, and solves the problems of low productivity and frequent maintenance caused by adopting a bouncing screen as a first-pass separation device for many years in the industry by arranging the spiral roller screen as a first-stage separation unit at the upstream of the bouncing screen, thereby improving the fine degree of separating the plastic film from the construction waste, the recycling rate of the plastic film, the material separation precision and separation quality, and the separation precision reaching 85% -90%.
2. According to the construction waste fine treatment production line, the separation line and the crushing line are relatively and independently arranged, namely, the separation line and the crushing line are connected into the whole production line only at the crushing feeding storage yard and the second excavator, and the separation line and the crushing line are independently operated at other equipment, so that the crushing link and the separation link of the construction waste in the traditional construction waste treatment process are divided into two independent units, the operation of other units is not influenced when a single unit fails, the operation time of the single unit is effectively prolonged, the energy consumption is effectively reduced, and the maintenance cost is reduced.
3. According to the construction waste fine processing production line, the first digging machine for shoveling and pre-sorting are additionally arranged in the pre-sorting unit and matched with the manual sorting platform, namely, the first digging machine with the improved shoveling hopper structure is matched with the manual sorting platform, so that the pre-sorting efficiency and sorting precision are improved, the fine degree of separating the plastic films in the construction waste by the whole production line is also improved, and the recycling rate of the plastic films in the construction waste is improved.
4. According to the construction waste fine treatment production line, composite screening is carried out by arranging the bar relaxation sieve and the bar relaxation sieve is combined with negative pressure winnowing adsorption, so that materials can be accurately separated, the fine degree of separating plastic films in the construction waste is improved, and the recycling rate of the plastic films in the construction waste is improved.
5. According to the construction waste fine treatment production line, through double-stage crushing and closed cycle design of the jaw crusher, the double-stage vibrating screen and the impact crusher, the grain size qualification rate of aggregate is more than or equal to 95%, the grain size qualification rate of recycled aggregate is greatly improved, and meanwhile, the metal recovery rate is more than or equal to 98% by setting three times of magnetic separation, and the metal recovery rate is greatly improved.
6. According to the construction waste fine treatment production line, through the arrangement of the washing line, the content of impurities possibly remained in the plastic film obtained by the sorting line and the crushing line is reduced, the fine degree of plastic film separation is further improved, and the purity and the recycling rate of the plastic film are improved.
7. The production method for the construction waste fine treatment can separate the plastic film in the construction waste more finely through the pre-sorting, multi-stage screening, each stage of air separation, three times of magnetic separation and broken closed loop, and improves the recycling rate of the plastic film in the construction waste.
Drawings
FIG. 1 is a process flow diagram of one embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1, the embodiment provides a construction waste fine treatment production line. The production line comprises a sorting line, a crushing line and a washing line. The separation line comprises a pre-separation unit, a primary separation unit, a secondary separation unit, a tertiary separation unit, a quaternary separation unit, an additional separation unit, a light material tailing storage yard, a light material storage bin, a tertiary stone powder storage yard and a crushing loading storage yard. The crushing line is used for further crushing, screening, magnetic separation and winnowing brick slag-based mixture and powder in a crushing feeding storage yard, and comprises a second excavator, a vibrating feeder, a jaw crusher, a double-layer vibrating screen, a counter-impact crusher, a wind separation unit, a single-layer vibrating screen and a third magnetic separator, wherein the second excavator is used for conveying the materials in the crushing feeding storage yard to the vibrating feeder, the vibrating feeder is used for uniformly feeding the jaw crusher, the jaw crusher is arranged at the downstream of the vibrating feeder, the double-layer vibrating screen is arranged at the downstream of the jaw crusher, the counter-impact crusher and the wind separation unit are respectively connected with the double-layer vibrating screen through a belt conveyor, and the third magnetic separator is arranged on the belt conveyor between the double-layer vibrating screen and the counter-impact crusher, wherein a discharge hole of the counter-impact crusher is communicated with a feed hole of the double-layer vibrating screen. The washing line is used for washing the plastic film obtained in the separation line and the crushing line, and comprises a multi-stage shredding unit, a separator, a flushing tank, a dehydration packaging system and a water circulation system.
In the sorting line, the pre-sorting unit comprises a first digging machine, a plate chain feeding machine and a single-person manual sorting platform. The first excavator comprises a shovel hopper, wherein the shovel hopper comprises at least two toothed bars arranged at intervals, and the toothed bars are used for shoveling materials. The spiral roller screen is connected with a discharge hole of the plate chain feeding machine through a feeding belt, and the single-seat manual sorting platform is arranged on the side face of the feeding belt. Through the cooperation of first dig machine and single manual sorting platform, thereby can the follow-up line load of reducing of the jumbo size material of quick separation.
In the separation line, the first-stage separation unit adopts a spiral roller screen, and a discharge hole of the spiral roller screen is respectively connected with a bouncing screen, a separation room and a bar relaxation screen. The spiral roller screen sequentially screens the materials according to the particle size from large to small to form a first-stage material entering the bouncing screen, a second-stage material entering the sorting room and a third-stage material entering the rod relaxation screen. The particle size of the first-stage material is larger than 180mm, the particle size of the second-stage material is between 50mm and 180mm, and the particle size of the third-stage material is smaller than 50mm.
In the separation line, the bouncing screen of the secondary separation unit is respectively connected with the light material tailing storage yard, the separation room and the rod relaxation screen. The bouncing screen comprises a frame, a power device arranged on the frame, a crankshaft arranged on the frame and connected with the power device, eight screen plates arranged in the frame and connected with the crankshaft, wherein the screen plates are obliquely arranged, and a plurality of screen holes and saw teeth are arranged on the screen plates. Through the slope setting of sieve for the heavy object on the sieve can roll and retrieve. The crankshaft is driven to eccentrically reciprocate through the power device, and eight sieve plates are driven to reciprocate up and down in a staggered mode, so that plastic films on the sieve plates can move upwards along the surface of the sieve plates through saw teeth on the sieve plates. The spiral roller screen is used for primary separation, so that the amount of materials entering the trampoline is reduced, the targeting materials processed by the trampoline are more accurate, the sorting quality of the trampoline is improved, and the frequency of trampoline maintenance is reduced.
In the separation line, a separation room of the secondary separation unit receives the material with the grain diameter of 50mm to 180mm obtained by the spiral roller screen and the material with the grain diameter of more than 50mm obtained by the bouncing screen. The sorting room is connected with the crushing and feeding stacking field through a belt conveyor. The sorting room comprises a house body for providing a closed environment, a plurality of sorting stations and/or sorting equipment arranged on the same side in the house body, and a sorting bin arranged on the outer side of the house body and communicated with the bottom of the house body through a channel. The plurality of sorting stations and/or sorting equipment are arranged on the same side of the belt conveyor along the conveying direction of the belt conveyor in the house body, the sorting bin is arranged on the other side of the belt conveyor (namely opposite to the sorting stations and/or the sorting equipment), and the channel corresponds to the plurality of sorting stations or the sorting equipment. The sorting room is a manual sorting room, and when the sorting room is implemented, five sorting stations are arranged, workers are arranged at the sorting stations, and pick out the substances which are leaked from the belt conveyor and send the substances into the sorting bin through the channel. Because the space in the sorting room is isolated from the space where other equipment of the production line is located, the quality of the working environment of personnel or equipment can be improved, dust prevention and noise reduction are realized, and the operation safety is ensured. Through with the external passageway of sorting feed bin with setting up corresponding, also can avoid the dust to gather in the sorting room, improve personnel or equipment operational environment quality, improve letter sorting efficiency and simple operation, also be convenient for retrieve the material of sorting in the feed bin. According to the production line, the sorting room is arranged by adopting the single-side sorting station and/or the sorting equipment layout and the structure configuration of the opposite sorting bin, the sorting environment for the construction waste is improved, the distance of workers or equipment movement is reduced, the sorting efficiency and the operation convenience are greatly improved, the sorting efficiency is improved by about 25% -30%, the refinement degree of separating the plastic film in the construction waste is improved, and the recycling rate of the plastic film in the construction waste is improved.
In the separation line, a rod relaxation sieve (a combination of the rod sieve and the relaxation sieve) of the secondary separation unit is respectively connected with a horizontal winnowing machine, a negative pressure winnowing machine and a three-stage stone powder storage yard through a belt conveyor. Bar relaxers use conventional products available in the market. The rod relaxation sieve sequentially sieves the incoming materials according to the particle size from large to small to form a fourth-stage material entering the horizontal winnowing machine, a fifth-stage material entering the negative-pressure winnowing machine and a sixth-stage material entering the three-stage stone powder storage yard. The particle size of the fourth-grade material is larger than 30mm, the particle size of the fifth-grade material is between 8mm and 30mm, and the particle size of the sixth-grade material is smaller than 8mm.
In the separation line, the three-stage separation unit comprises a horizontal winnowing machine and a negative pressure winnowing machine. The four-stage sorting unit comprises a single-layer relaxation sieve for further sorting the plastic film-containing material obtained by the horizontal winnowing machine and a manual sorting station arranged on the side surface of the belt conveyor between the horizontal winnowing machine and the crushing and feeding stacking field. The single-layer relaxation sieve is respectively connected with the crushing loading storage yard and the light material tailing storage yard. The horizontal winnowing machine sorts the incoming materials into brick residue-based mixture and plastic film-containing materials, wherein the plastic film-containing materials enter a single-layer relaxation sieve from the front end discharge, the brick residue-based mixture is discharged from the tail end and conveyed to a crushing feeding heap through a belt conveyor (a manual sorting station is arranged in the middle of the belt conveyor and is used for further sorting wood and PVC). The plastic film discharge port of the negative pressure winnowing machine is connected with a light material bin, and the brick slag-based mixture obtained by the negative pressure winnowing machine is sent to a crushing and feeding pile field through a belt conveyor. The screen mesh of the single-layer relaxation screen is 8mm in diameter and is used for further cleaning and sorting materials containing plastic films to obtain powder and the plastic films.
In the separation line, the additional separation unit comprises a first magnetic separator for carrying out magnetic separation on the brick slag-based mixture obtained in the separation room, a second magnetic separator for carrying out magnetic separation on the materials with the grain diameters of more than 30mm after secondary separation, and a foam winnowing machine for carrying out winnowing on the materials with the grain diameters of less than 8mm after secondary separation. The first magnetic separator and the second magnetic separator are used for separating out metals, wherein the first magnetic separator is arranged on a belt conveyor between the separation room and the crushing and feeding stacking field, and the second magnetic separator is arranged on the belt conveyor between the bar relaxation sieve and the horizontal winnowing machine. The foam winnowing machine is used for selecting foam particles and is arranged on a belt conveyor between the bar relaxation sieve and the three-stage stone powder storage yard.
In the crushing line, the mesh diameter of the upper layer screen of the double-layer vibrating screen is 40mm, and the mesh diameter of the lower layer screen is 16mm. Coarse crushing is carried out by a jaw crusher (the crushing ratio is 3-6), fine crushing is carried out by an impact crusher, and closed circulation is formed by matching with a double-layer vibrating screen, so that the grain size qualification rate of aggregate is ensured to be more than or equal to 95%.
The three-stage stone powder storage yard, the crushing feeding storage yard, the external stone storage yard, the stone storage yard and the stone powder storage yard are respectively provided with atomization equipment for spraying and dedusting.
Example two
The embodiment provides a production method for carrying out construction waste refining treatment by adopting the construction waste refining treatment production line. The method comprises the following steps:
S0, pre-sorting, namely, uniformly feeding the plate chain feeding machine by the first excavator, pre-sorting construction waste by a shovel hopper of the first excavator through gaps among toothed bars while feeding (namely, large wood boards, large rubber, large nylon bags, nets, stones, bricks, concrete blocks and the like with particle diameters exceeding 300mm are left on the toothed bars and are subsequently removed by the excavator, and the rest small materials and materials with particle diameters not exceeding 300mm fall onto the plate chain feeding machine from the gaps among the toothed bars), and uniformly feeding the pre-sorted materials to a spiral roller screen by the plate chain feeding machine through a feeding belt in the feeding process, and sorting the pre-sorted large wood boards, the large rubber, the large nylon bags, the nets, the stones, the bricks, the concrete blocks and the like with particle diameters exceeding 300mm again by a single-person manual sorting platform, so that the materials are prevented from entering the system.
S1, first-stage sorting, namely sorting the raw materials according to the size and the specific gravity of the raw materials by a spiral roller screen, wherein the materials with the particle size of more than 180mm and containing plastic films enter a bouncing screen along with lateral discharge of a spiral blade to be further sorted, light materials and heavy materials with the particle size of 50-180 mm enter the spiral blade and are pushed to the front end of the spiral roller to be discharged into a manual sorting room to be sorted, and the heavy materials with the particle size of less than 50mm and containing plastic films enter a rod relaxation screen from a spiral roller gap to be further processed.
S2, secondary separation, namely screening the materials with the grain diameter larger than 180mm after primary separation by a bouncing screen, wherein heavy matters with the grain diameter smaller than 50mm enter a rod relaxation screen through a belt conveyor to be treated, the plastic film moves upwards through saw teeth on a screen plate and is transported to a light material tailing storage yard through the belt conveyor, and the heavy matters with the grain diameter larger than 50mm roll off from an inclined screen plate surface to enter a manual separation room to be further separated. Five people are always in stock in the manual sorting room to accurately sort the materials with the grain diameter of 50mm to 180mm after primary sorting and the materials with the grain diameter of more than 50mm obtained by the bouncing screen, so as to obtain plastic films, wood, PVC and rubber, the residual brick residue-based mixture after sorting is conveyed to a crushing feeding yard through a belt conveyor, the residual metal on the belt conveyor is fully sorted by a first magnetic separator in the conveying process of the brick residue-based mixture, and the brick residue-based mixture after sorting is continuously conveyed to the crushing feeding yard through the belt conveyor. The rod relaxation sieve divides materials into three types through rods and a punching sieve surface, wherein the materials with the particle size of more than 30mm enter a horizontal winnowing machine through a belt conveyor to be processed, the materials with the particle size of 8 mm-30 mm are conveyed to a negative pressure winnowing machine through the belt conveyor to be processed, stone powder and sand with the particle size of less than 8mm are conveyed to a three-stage stone powder stockyard through the belt conveyor, meanwhile, the materials with the particle size of more than 30mm are subjected to residual metal separation through a second magnetic separator in the conveying process, and stone powder and sand with the particle size of less than 8mm are subjected to foam particle separation through a foam winnowing machine in the conveying process.
S3, three-stage separation, namely horizontally separating materials with the grain diameter larger than 30mm obtained by screening the rod relaxation sieve by a horizontal winnowing machine, wherein the selected light materials containing the plastic film enter a single-layer relaxation sieve, and the residual brick residue-based mixture is transported to a crushing feeding storage yard by a belt conveyor. The negative pressure winnowing machine carries out negative pressure winnowing on the materials with the grain diameters between 8mm and 30mm, which are obtained by the rod relaxation sieve, the selected plastic film enters an independent light material bin, and the residual brick residue-based mixture is transported to a crushing loading storage yard through a belt conveyor.
S4, four-stage separation, namely separating the brick residue-based mixture obtained by horizontal air separation and the material containing the plastic film respectively, wherein a single-layer relaxation sieve is used for further cleaning and separating the light material containing the plastic film discharged from the front end of the horizontal air separation machine through an 8mm screen, the undersize material, namely powder, enters a crushing feeding stack yard, the oversize material, namely the plastic film, is transported to a light material tailing stack yard through a belt conveyor, and two-person separation stations are used for discharging the tail end of the horizontal air separation machine and further separating the brick residue-based mixture transported to the crushing feeding stack yard through the belt conveyor to obtain wood and PVC.
S5, primary crushing, namely feeding the brick slag-based mixture and powder in the crushing and feeding storage yard to a vibration feeder by a second excavator, and uniformly feeding the mixture to a jaw crusher by the vibration feeder for primary crushing.
S6, vibration sorting, namely separating the materials subjected to primary crushing and secondary crushing into three types by a double-layer vibrating screen, namely conveying the materials with the particle size of more than 40mm to a counter-impact crusher for secondary crushing by a belt conveyor (meanwhile, conveying residual metals by a third magnetic separator arranged on the belt conveyor for magnetic separation and screening), conveying the materials with the particle size of 16-40 mm to a winnowing unit for treatment by the belt conveyor, and conveying stones and stone powder with the particle size of less than 16mm to a single-layer vibrating screen for treatment.
S7, third-gear treatment, namely, after secondary crushing is carried out on the materials by an impact crusher, the tailings enter a double-layer vibrating screen to screen again, meanwhile, a winnowing unit is used for sorting the incoming materials through winnowing based on the specific gravity of the materials, the selected plastic film enters a light material bin, the selected stones are transported to a stone storage yard outside a factory building through a belt conveyor, meanwhile, a single-layer vibrating screen is used for separating the stones and stone powder in the incoming materials through a 8mm single-layer screen, the stone powder storage yard is removed from the screened stones, the stones on the screen are removed from other stone storage yards, and meanwhile, spray dust removal is carried out on the three-level stone storage yard, the crushing feeding storage yard, the external stone storage yard, the stone storage yard and the stone storage yard through atomization equipment respectively.
S8, washing, namely enabling the obtained plastic film to enter a multi-stage shredding unit for multi-stage shredding, enabling the plastic film subjected to multi-stage shredding to enter a separator for impurity separation, enabling the plastic film subjected to impurity separation to enter a washing tank for washing, and enabling the washed plastic film to enter a dehydration packaging system for final dehydration and packaging. In the process, clean water required by the separator and the flushing tank is provided by the water circulation system, and meanwhile, sewage generated by the separator, the flushing tank and the dehydration packaging system enters the water circulation system for treatment so as to generate clean water, and the clean water is circulated.
In the present embodiment, the steps of S1 to S4 and the steps of S5 to S8 may be performed simultaneously, thereby significantly improving the processing efficiency.
The production method can refine the construction waste through pre-sorting, multi-stage screening, each-stage winnowing, three-time magnetic separation, crushing closed loop and water washing, and can separate the construction waste more comprehensively and effectively to obtain plastic films, wood, PVC, rubber, metal, cobble, stone powder, brick slag and foam, so that the resource utilization rate is greatly improved, the material sorting precision is improved, the sorting efficiency is improved, and the production efficiency is improved.
The embodiments of the present invention have been described above with reference to the accompanying drawings, and the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. The present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the invention and the scope of the appended claims, which are all within the scope of the invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511272252.4A CN120734080B (en) | 2025-09-08 | 2025-09-08 | Fine processing production line and production method for construction waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511272252.4A CN120734080B (en) | 2025-09-08 | 2025-09-08 | Fine processing production line and production method for construction waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN120734080A true CN120734080A (en) | 2025-10-03 |
| CN120734080B CN120734080B (en) | 2025-12-09 |
Family
ID=97180749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511272252.4A Active CN120734080B (en) | 2025-09-08 | 2025-09-08 | Fine processing production line and production method for construction waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120734080B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306781A1 (en) * | 1993-03-04 | 1994-09-08 | Kloeckner Humboldt Deutz Ag | Process and installation for the treatment of mixed refuse with a high plastics content |
| JP2006000789A (en) * | 2004-06-18 | 2006-01-05 | Nippon Steel Corp | Construction mixed waste sorting method and equipment |
| JP2010194860A (en) * | 2009-02-25 | 2010-09-09 | Taiheiyo Cement Corp | Processing method and processor for mixed waste containing waste plastic |
| CN104139470A (en) * | 2014-07-21 | 2014-11-12 | 江苏金沃机械有限公司 | A washing and purification system for film waste plastic recycling and reuse |
| CN105127176A (en) * | 2015-08-17 | 2015-12-09 | 新疆科立机械设备有限公司 | Building-rubbish resource treatment and use integrated treating method and treating system thereof |
| CN111318548A (en) * | 2020-03-25 | 2020-06-23 | 江苏天楹环保能源成套设备有限公司 | Demolition building garbage sorting system and method |
| CN211285741U (en) * | 2019-10-16 | 2020-08-18 | 上海保闻劳务派遣有限公司 | Building rubbish letter sorting harrow |
| CN112474712A (en) * | 2020-11-03 | 2021-03-12 | 北京首钢资源综合利用科技开发有限公司 | Building decoration garbage resource utilization system and method |
| CN113070321A (en) * | 2021-03-23 | 2021-07-06 | 北京格林雷斯环保科技有限公司 | Construction waste treatment method |
| CN215430258U (en) * | 2021-08-11 | 2022-01-07 | 沧州市市政工程股份有限公司 | Decoration and fitment rubbish resourceful treatment system |
| CN219663938U (en) * | 2022-10-25 | 2023-09-12 | 首钢环境产业有限公司 | Decoration garbage disposal system |
| CN118437639A (en) * | 2024-05-30 | 2024-08-06 | 北京诺芯环境科技有限公司 | Construction and decoration garbage recycling treatment method and system |
| CN120479581A (en) * | 2025-07-16 | 2025-08-15 | 浙江锐洁环境工程有限公司 | Intelligent sorting system and method for building rubbish |
-
2025
- 2025-09-08 CN CN202511272252.4A patent/CN120734080B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4306781A1 (en) * | 1993-03-04 | 1994-09-08 | Kloeckner Humboldt Deutz Ag | Process and installation for the treatment of mixed refuse with a high plastics content |
| JP2006000789A (en) * | 2004-06-18 | 2006-01-05 | Nippon Steel Corp | Construction mixed waste sorting method and equipment |
| JP2010194860A (en) * | 2009-02-25 | 2010-09-09 | Taiheiyo Cement Corp | Processing method and processor for mixed waste containing waste plastic |
| CN104139470A (en) * | 2014-07-21 | 2014-11-12 | 江苏金沃机械有限公司 | A washing and purification system for film waste plastic recycling and reuse |
| CN105127176A (en) * | 2015-08-17 | 2015-12-09 | 新疆科立机械设备有限公司 | Building-rubbish resource treatment and use integrated treating method and treating system thereof |
| CN211285741U (en) * | 2019-10-16 | 2020-08-18 | 上海保闻劳务派遣有限公司 | Building rubbish letter sorting harrow |
| CN111318548A (en) * | 2020-03-25 | 2020-06-23 | 江苏天楹环保能源成套设备有限公司 | Demolition building garbage sorting system and method |
| CN112474712A (en) * | 2020-11-03 | 2021-03-12 | 北京首钢资源综合利用科技开发有限公司 | Building decoration garbage resource utilization system and method |
| CN113070321A (en) * | 2021-03-23 | 2021-07-06 | 北京格林雷斯环保科技有限公司 | Construction waste treatment method |
| CN215430258U (en) * | 2021-08-11 | 2022-01-07 | 沧州市市政工程股份有限公司 | Decoration and fitment rubbish resourceful treatment system |
| CN219663938U (en) * | 2022-10-25 | 2023-09-12 | 首钢环境产业有限公司 | Decoration garbage disposal system |
| CN118437639A (en) * | 2024-05-30 | 2024-08-06 | 北京诺芯环境科技有限公司 | Construction and decoration garbage recycling treatment method and system |
| CN120479581A (en) * | 2025-07-16 | 2025-08-15 | 浙江锐洁环境工程有限公司 | Intelligent sorting system and method for building rubbish |
Non-Patent Citations (1)
| Title |
|---|
| 史志贺;戴国洪;周自强;: "建筑垃圾资源化利用分选技术研究综述", 常州工学院学报, no. 02, 28 April 2020 (2020-04-28) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120734080B (en) | 2025-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209005920U (en) | A kind of cracking and sorting processing system of building waste | |
| CN207138076U (en) | A kind of building waste Integrated Processing Unit | |
| CN103567209B (en) | A kind of resourceful treatment system for decoration construction waste and processing method thereof | |
| CN110813483A (en) | Construction waste crushing and sorting treatment system | |
| CN201511034U (en) | Construction waste treatment recycling system | |
| CN108176697A (en) | Build composting sorting total system and processing method | |
| CN211274779U (en) | Solid construction waste cyclic utilization processing system | |
| CN101549351A (en) | Building refuse treatment regeneration system | |
| CN112354669A (en) | Efficient environment-friendly building waste concrete treatment process | |
| US20220048041A1 (en) | System and Method for the Gravimetric Sorting of a Mixture of Substances | |
| CN108311519A (en) | A kind of decoration building waste sorting sorting technique and system | |
| CN206454767U (en) | A kind of building waste movable Crushing recovery system | |
| CN113695048A (en) | Sandstone aggregate production system and production method thereof | |
| KR100582847B1 (en) | Construction waste recycling aggregate sorting device and its sorting method | |
| CN112474712A (en) | Building decoration garbage resource utilization system and method | |
| CN102328360A (en) | Polyethylene pipe broken material or drop material sorting and separating device | |
| CN119588628A (en) | Intelligent identification and efficient separation method of organic and inorganic materials in construction waste | |
| CN103586257A (en) | Construction waste treatment system | |
| CN115090655A (en) | A kind of demolition and decoration garbage recycling and processing method | |
| CN219334975U (en) | Apparatus for producing based on concrete regeneration top-quality aggregate is selected separately | |
| CN216224746U (en) | Modular design's building rubbish treatment production line | |
| CN120734080B (en) | Fine processing production line and production method for construction waste | |
| CN213529043U (en) | System suitable for soft or hard classification of fitment rubbish | |
| CN212549957U (en) | Waste water mud piece solid refuse treatment system for building | |
| CN107309249A (en) | A kind of stacked construction refuse resource processing equipment |
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 |