CN117225711B - Construction waste treatment process - Google Patents
Construction waste treatment process Download PDFInfo
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- CN117225711B CN117225711B CN202311439091.4A CN202311439091A CN117225711B CN 117225711 B CN117225711 B CN 117225711B CN 202311439091 A CN202311439091 A CN 202311439091A CN 117225711 B CN117225711 B CN 117225711B
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- construction waste
- positioning frame
- screening
- waste
- fixedly connected
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- 239000002699 waste material Substances 0.000 title claims abstract description 107
- 238000010276 construction Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000012216 screening Methods 0.000 claims abstract description 55
- 239000002245 particle Substances 0.000 claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 38
- 239000000428 dust Substances 0.000 claims abstract description 33
- 239000012535 impurity Substances 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000007664 blowing Methods 0.000 claims abstract description 16
- 238000007885 magnetic separation Methods 0.000 claims abstract description 16
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 239000004575 stone Substances 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 17
- 239000004567 concrete Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000010893 paper waste Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 description 11
- 230000013011 mating Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
Abstract
The invention relates to the technical field of construction waste treatment, in particular to a construction waste treatment process, which comprises a particle size screening unit, a conveying screening part and a cleaning and dredging part, wherein the conveying screening part is used for continuously conveying and screening secondary construction waste, crushed stone and dust with the diameter smaller than 5mm in the secondary construction waste are dynamically screened, and the cleaning and dredging part is used for cleaning and dredging limiting meshes according to intermittent timing setting, so that small particle materials can be ensured to fall down from the conveying screening part rapidly, and finally the three-stage construction waste meeting the particle size requirement is obtained; the falling three-stage construction waste is adsorbed by the magnetic separation guide piece to possibly mix with iron waste, then the falling material is buffered by the magnetic separation guide piece and then is directly blown by the blowing part to remove light garbage and dust possibly mixed with the material, the light garbage, the dust and the like are blown into the waste collection part to fall and collect, and the impurity removal treatment efficiency is improved through reasonable arrangement among all parts in the impurity removal unit.
Description
Technical Field
The invention relates to the technical field of construction waste treatment, in particular to a construction waste treatment process.
Background
The construction waste refers to various wastes and residual materials generated in the processes of demolishing, reforming, building and construction of a building. Mainly comprises concrete, wood, metal, plastic, paper, etc. The construction waste can be treated according to the characteristics of different materials to obtain recyclable resources, and stones such as concrete and the like can be crushed to obtain recycled construction aggregate.
Building aggregate refers to various materials used in construction engineering for making concrete, mortar and other building components. Common construction aggregates include sand, gravel, crushed stone, gravel, and the like. The building aggregate can be classified according to different particle sizes, such as fine aggregate and coarse aggregate, plays an important role in supporting and reinforcing in building construction, and is one of main components of a building structure.
The aggregate is the main constituent material of the concrete and accounts for more than 3/4 of the total volume of the concrete. Aggregate having a particle size of 0.16mm to 5mm is generally referred to as fine aggregate, and aggregate having a particle size of more than 5mm is generally referred to as coarse aggregate.
At present, in the process of treating construction waste to obtain recycled aggregate, the following problems mainly exist: 1. when the crushed concrete crushed aggregates are subjected to particle size screening, the screening meshes with the minimum diameter are 5mm, and because the meshes are smaller in diameter, the crushed aggregates are easy to block the screening meshes when continuously screened, so that the quality of coarse aggregate obtained by screening and filtering is not ideal, more granular dust which does not meet the particle size requirement still exists, and the crushed aggregates cannot be effectively subjected to refining screening.
2. Although the construction waste is pre-sorted to remove larger other construction waste such as larger metal, wood, plastic products and waste paper, the concrete still contains some smaller construction waste which is difficult to separate out quickly by manpower, so that when the concrete crushed aggregates are subjected to impurity removal, the crushed aggregates are usually required to be subjected to impurity removal sequentially through a plurality of devices, the occupied area of the devices is larger, the treatment process is more complex, and the treatment efficiency is lower.
Therefore, the invention provides a construction waste treatment process for solving the problems that the effect is not ideal, the impurity removal process is complex, the treatment efficiency is low and the like when the concrete crushed aggregates are subjected to particle size screening.
Disclosure of Invention
The invention provides a construction waste treatment process, which aims to solve the problems that the effect is not ideal when the concrete crushed aggregates are subjected to particle size screening, the impurity removal process is complex and the treatment efficiency is low in the related art.
The invention provides a construction waste treatment process, which uses a construction waste treatment device, the construction waste treatment device comprises a grain size screening unit, an impurity removing unit is arranged on the right side of the grain size screening unit, and the construction waste treatment process comprises the following steps:
s1, manual sorting: the large-size metal, plastic, wood and waste paper in the construction waste are manually separated, and the rest concrete stone is used as the primary construction waste to be treated.
S2, primary crushing: the jaw crusher is utilized to carry out primary crushing treatment on the primary construction waste, and the output crushed aggregates are subjected to primary magnetic attraction through the magnetic attraction device to remove metal substances mixed in the crushed aggregates, so that the primary construction waste is obtained.
S3, secondary crushing: and (3) carrying out secondary crushing treatment on the primary construction waste by using a cone crusher to obtain secondary construction waste with the diameter smaller than 30 mm.
S4, screening particle sizes: and (3) screening out particle dust with the particle size smaller than 5mm in the secondary building rubbish by a particle size screening unit to obtain the tertiary building rubbish with the particle size larger than 5mm and smaller than 30 mm.
S5, removing impurities: and removing a small amount of waste iron, plastic, wood dust and waste paper possibly contained in the three-stage construction waste through an impurity removing unit to finally obtain the recycled construction aggregate.
S6, washing and drying: and (3) washing the recycled building aggregate with water to remove dust attached to the surface, and drying after washing, so that the clean recycled building aggregate which can be used as concrete ingredients is finally obtained.
The particle size screening unit comprises a first supporting and positioning frame, an inclined positioning frame is fixedly arranged at the upper end of the first supporting and positioning frame, a cleaning dredging part is arranged in the inclined positioning frame, and a conveying screening part is fixedly arranged on the inclined positioning frame.
The impurity removing unit comprises a supporting and positioning frame II, the right side of the supporting and positioning frame I is provided with a supporting and positioning frame II, a material treatment part is fixedly installed on the supporting and positioning frame II, a magnetic separation guide part is arranged in the material treatment part, a blowing part is fixedly installed on the right side of the material treatment part at the upper end of the supporting and positioning frame II, a waste collection part is fixedly installed on the left side of the material treatment part at the upper end of the supporting and positioning frame II, the blowing part and the waste collection part are fixedly connected with the material treatment part, and the middle part of the upper end of the material treatment part is fixedly connected with a conveying screening part.
In one embodiment, the conveying and screening part comprises a fixed cylinder, a fixed cylinder is fixedly installed on the inclined positioning frame, a linkage rod is rotationally connected to the fixed cylinder, a spiral blade is arranged on the linkage rod, a motor is fixedly installed at the left end of the fixed cylinder through a motor base, an output shaft of the motor is fixedly connected with the linkage rod, a feeding funnel is fixedly installed at the left side of the upper end of the fixed cylinder, a discharging cylinder is fixedly installed at the right side of the lower end of the fixed cylinder, the lower end of the discharging cylinder is fixedly connected with a material processing piece, and limiting through holes are uniformly formed in the left side of the fixed cylinder along an arc surface.
In one embodiment, the blowing part comprises a T-shaped mounting frame, the upper end of the supporting positioning frame II is fixedly arranged on the right side of the material processing part, a pressurizing pump is fixedly arranged on the upper end of the T-shaped mounting frame, the left end of the pressurizing pump is fixedly connected with a T-shaped connecting pipe, the upper end and the lower end of the T-shaped connecting pipe are fixedly connected with communicating pipes, the upper end of the upper communicating pipe is uniformly and fixedly connected with an air inlet branch pipe, the inside of the air inlet branch pipe is gradually reduced, and the air inlet branch pipe is fixedly connected with the material processing part.
In one embodiment, the cleaning dredging part comprises a fixed slide rail, the fixed slide rail is fixedly installed on the front and rear opposite wall surfaces in the inclined positioning frame, electric sliding blocks are arranged on the fixed slide rail in a sliding mode, a matched installation piece is fixedly installed between the electric sliding blocks together, cleaning bristles I are uniformly arranged at the lower end of the matched installation piece, and an arc surface cleaning group is arranged at the upper end of the matched installation piece.
In one embodiment, the cambered surface cleaning group comprises an automatic telescopic rod, the automatic telescopic rod is fixedly installed on a plurality of planes at the upper end of the matched installation piece, the matched arc plate is fixedly installed at the upper end of the automatic telescopic rod, the cleaning bristles II are uniformly arranged on the cambered surface at the upper end of the matched arc plate, springs are sleeved on the automatic telescopic rod, one ends of the springs are fixedly connected with the matched installation piece, and the other ends of the springs are fixedly connected with the matched arc plate.
In one embodiment, the waste collection portion comprises a rectangular communication frame, the upper end of the supporting and positioning frame II is fixedly provided with a receiving and processing piece which is positioned on the left side of the material processing piece, the right end of the receiving and processing piece is fixedly connected with the rectangular communication frame up and down, the rectangular communication frame is fixedly connected with the material processing piece, and the upper rectangular communication frame and the lower rectangular communication frame are oppositely arranged left and right with the upper air inlet branch pipe and the lower air inlet branch pipe.
In one embodiment, the magnetic separation guide piece comprises a guide slide plate, wherein the guide slide plates are fixedly installed on the left and right opposite wall surfaces of the material treatment piece from top to bottom in a staggered manner, and electromagnets are arranged on the guide slide plates.
In one embodiment, the bottom end in the inclined positioning frame is provided with inclined end faces in a front-back symmetrical mode, and the left side of the lower end of the inclined positioning frame is fixedly connected with a fine material discharging part.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. the invention provides a construction waste treatment process, which is characterized in that a particle size screening unit is arranged, secondary construction waste is continuously conveyed and screened through a conveying screening part, broken stone and dust with the diameter smaller than 5mm in the secondary construction waste are dynamically screened, limiting meshes can be cleaned and dredged through a cleaning and dredging part according to intermittent timing setting, small particle matters can be ensured to fall down from the conveying screening part rapidly, and finally three-stage construction waste meeting the particle size requirement is obtained; the three-stage construction waste obtained through the conveying and screening part treatment falls from the upper end of the material treatment part, the falling three-stage construction waste is adsorbed by the magnetic separation guide part to possibly mix with iron waste, then the falling material is buffered by the magnetic separation guide part, light garbage and dust possibly mixed with the material are blown out from right to left through the blowing part, the light garbage and dust and the like are blown into the left waste collection part to fall dust and are collected, and the impurity removal treatment process is integrated comprehensively through reasonable arrangement among all parts in the impurity removal unit, so that the complex treatment process is simplified, and the impurity removal treatment efficiency is improved.
2. The inclined positioning frame and the conveying and screening part are arranged in an inclined manner, so that the secondary construction waste can be conveyed while small-diameter particles are filtered in the conveying process, and substances screened into the inclined positioning frame can be discharged rapidly.
3. According to the cleaning and dredging part, the limiting through holes are dredged and cleaned through the cambered surface cleaning group, and particle dust falling on the inner bottom of the inclined positioning frame is quickly swept down to the left through cleaning bristles, so that smooth blanking of the limiting through holes and no dust accumulation on the inner bottom of the inclined positioning frame are ensured.
In addition to the technical problems, technical features constituting the technical solutions, and beneficial effects caused by the technical features of the technical solutions described above, other technical problems that can be solved based on a construction waste treatment process, other technical features included in the technical solutions, and beneficial effects caused by the technical features provided in the embodiments of the present application will be further described in detail in the detailed description of the present application.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
Fig. 3 is a schematic view of the transverse vertical half-section structure of the present invention.
Fig. 4 is an enlarged view of the invention at M in fig. 3.
Fig. 5 is an enlarged view of the invention at N in fig. 3.
Fig. 6 is a cross-sectional view taken along A-A of fig. 3 in accordance with the present invention.
Fig. 7 is an enlarged view of the invention at H in fig. 6.
Fig. 8 is a schematic view of a right-side plan view structure of the present invention.
Reference numerals:
1. a particle size screening unit; 11. a first supporting and positioning frame; 12. a positioning frame is obliquely arranged; 120. a fines discharge member; 13. cleaning the dredging part; 131. fixing the sliding rail; 132. an electric slide block; 133. a mating mounting member; 134. cleaning first bristles; 135. a cambered surface cleaning group; 1351. an automatic telescopic rod; 1352. matching with an arc-shaped plate; 1353. cleaning a second bristle; 1354. a spring; 14. conveying the sieving part; 141. a fixed cylinder; 142. a linkage rod; 143. a helical blade; 144. a motor; 145. a feed hopper; 146. a discharging cylinder; 147. limiting through holes; 2. an impurity removing unit; 21. a second supporting and positioning frame; 22. a material handling member; 23. magnetic separation guide piece; 231. a material guiding slide plate; 232. an electromagnet; 24. a blowing part; 241. a T-shaped mounting rack; 242. a pressurizing pump; 243. a T-shaped connecting pipe; 244. a communicating pipe; 245. an air inlet branch pipe; 25. a waste collection unit; 251. a rectangular communication frame; 252. receiving the processing member.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 2, a construction waste treatment process using a construction waste treatment device includes a particle size screening unit 1 and an impurity removing unit 2, wherein the impurity removing unit 2 is disposed on the right side of the particle size screening unit 1, and the specific process when the construction waste treatment device is used for treating construction waste is as follows:
s1, manual sorting: the large-size metal, plastic, wood and waste paper in the construction waste are manually separated, and the rest concrete stone is used as the primary construction waste to be treated.
S2, primary crushing: the jaw crusher is utilized to carry out primary crushing treatment on the primary construction waste, and the output crushed aggregates are subjected to primary magnetic attraction through the magnetic attraction device to remove metal substances mixed in the crushed aggregates, so that the primary construction waste is obtained.
S3, secondary crushing: and (3) carrying out secondary crushing treatment on the primary construction waste by using a cone crusher to obtain secondary construction waste with the diameter smaller than 30 mm.
S4, screening particle sizes: and (3) screening out particle dust with the particle size smaller than 5mm in the secondary building waste by a particle size screening unit 1 to obtain the tertiary building waste with the particle size larger than 5mm and smaller than 30 mm.
S5, removing impurities: and (3) removing a small amount of waste iron, plastic, wood dust and waste paper possibly contained in the three-stage construction waste through an impurity removing unit 2, and finally obtaining the recycled construction aggregate.
S6, washing and drying: and (3) washing the recycled building aggregate with water to remove dust attached to the surface, and drying after washing, so that the clean recycled building aggregate which can be used as concrete ingredients is finally obtained.
Referring to fig. 3 and 4, the particle size screening unit 1 includes a first supporting and positioning frame 11, an inclined positioning frame 12, a cleaning and dredging portion 13, and a conveying and screening portion 14, wherein the inclined positioning frame 12 is fixedly mounted at the upper end of the first supporting and positioning frame 11, the cleaning and dredging portion 13 is disposed in the inclined positioning frame 12, and the conveying and screening portion 14 is fixedly mounted on the inclined positioning frame 12.
Referring to fig. 3, the impurity removing unit 2 includes a second supporting and positioning frame 21, a material processing member 22, a magnetic separation guiding member 23, a blowing portion 24 and a waste collecting portion 25, the second supporting and positioning frame 21 is disposed on the right side of the first supporting and positioning frame 11, the material processing member 22 is fixedly mounted on the second supporting and positioning frame 21, the magnetic separation guiding member 23 is disposed in the material processing member 22, the blowing portion 24 is fixedly mounted on the right side of the material processing member 22 at the upper end of the second supporting and positioning frame 21, the waste collecting portion 25 is fixedly mounted on the left side of the material processing member 22 at the upper end of the second supporting and positioning frame 21, both the blowing portion 24 and the waste collecting portion 25 are fixedly connected with the material processing member 22, and the middle portion of the upper end of the material processing member 22 is fixedly connected with the conveying sieving portion 14.
The secondary construction waste is continuously conveyed and screened through the conveying screening part 14, broken stone and dust with the diameter smaller than 5mm in the secondary construction waste are screened, the small particle matters fall into the inclined positioning frame 12 from the conveying screening part 14 and then slide out from the inclined positioning frame 12 to the left and the lower side, and the cleaning and dredging part 13 can clean the contact part with the conveying screening part 14 and the inner bottom end of the inclined positioning frame 12 according to intermittent timing, so that the small particle matters can be ensured to fall from the conveying screening part 14 quickly and be discharged from the inclined positioning frame 12 thoroughly; the inclined positioning frame 12 and the conveying and screening part 14 are arranged in an inclined manner, so that the secondary construction waste can be conveyed while small-diameter particles are filtered, and substances screened into the inclined positioning frame 12 can be discharged rapidly; the three-stage construction waste treated by the conveying and screening part 14 falls from the upper end of the material treatment part 22, the falling three-stage construction waste is adsorbed by the magnetic separation guide part 23 to possibly mix with iron waste, then the falling material is buffered by the magnetic separation guide part 23 and then light garbage and dust possibly mixed with the material are blown out from right to left through the blowing part 24, the light garbage, dust and the like are blown into the left waste collection part 25 to fall and collect, and finally the material discharged from the lower part of the material treatment part 22 can be collected as recycled construction aggregate.
Referring to fig. 3 and 6, the conveying and sieving unit 14 includes a fixed cylinder 141, a linkage rod 142, a helical blade 143, a motor 144, a feeding funnel 145, a discharging cylinder 146 and a limiting through hole 147, the fixed cylinder 141 is fixedly installed on the inclined positioning frame 12, the linkage rod 142 is rotatably connected with the fixed cylinder 141, the helical blade 143 is provided on the linkage rod 142, the motor 144 is fixedly installed at the left end of the fixed cylinder 141 through a motor seat, the output shaft of the motor 144 is fixedly connected with the linkage rod 142, the feeding funnel 145 is fixedly installed at the left side of the upper end of the fixed cylinder 141, the discharging cylinder 146 is fixedly installed at the right side of the lower end of the fixed cylinder 141, the lower end of the discharging cylinder 146 is fixedly connected with the material handling member 22, and the limiting through hole 147 is uniformly formed along the cambered surface at the left side of the discharging cylinder 146; the linkage rod 142 is driven to rotate by the rotation of the motor 144, namely the helical blade 143 can continuously rotate along with the linkage rod 142; the secondary construction waste enters the fixed cylinder 141 from the feeding hopper 145, and is continuously conveyed through the rotating spiral blade 143, and in the conveying process, the granular dust with the grain diameter smaller than 5mm in the secondary construction waste is discharged into the inclined positioning frame 12 from the limiting through hole 147; the continuous conveying of the secondary construction waste by the helical blades 143 enables the materials to continuously overturn and advance, so that small-diameter particles and dust can be screened out, and finally the materials meeting the requirements can be discharged into the material treatment piece 22 from the discharge cylinder 146 for subsequent treatment.
Referring to fig. 4 and 6, the cleaning and dredging portion 13 includes a fixed sliding rail 131, an electric sliding block 132, a matching installation member 133, a first cleaning brush 134 and a cambered surface cleaning group 135, the fixed sliding rail 131 is fixedly installed on the front and rear opposite wall surfaces in the inclined positioning frame 12, the electric sliding blocks 132 are slidably arranged on the fixed sliding rail 131, the matching installation members 133 are fixedly installed between the electric sliding blocks 132, the lower ends of the matching installation members 133 are uniformly provided with the first cleaning brush 134, and the upper ends of the matching installation members 133 are provided with the cambered surface cleaning group 135; according to the preset, the cleaning and dredging part 13 can perform intermittent work; during operation, the electric slider 132 moves linearly back and forth along the fixed sliding rail 131, that is, drives the matched mounting member 133 to move back and forth synchronously, dredges and cleans the limiting through hole 147 through the cambered surface cleaning group 135, and sweeps down and left rapidly the granule dust on the inner bottom of the inclined positioning frame 12 through cleaning bristle 134, so as to ensure that the limiting through hole 147 is smooth in blanking and no dust is accumulated on the inner bottom of the inclined positioning frame 12.
Referring to fig. 6 and 7, the arc cleaning set 135 includes an automatic telescopic rod 1351, a mating arc plate 1352, a second cleaning bristle 1353 and a spring 1354, the automatic telescopic rod 1351 is fixedly installed on a plurality of planes at the upper end of the mating installation member 133, the mating arc plate 1352 is fixedly installed at the upper end of the automatic telescopic rod 1351 together, the second cleaning bristle 1353 is uniformly arranged at the upper end of the mating arc plate 1352, the spring 1354 is sleeved on the automatic telescopic rod 1351, one end of the spring 1354 is fixedly connected with the mating installation member 133, and the other end of the spring 1354 is fixedly connected with the mating arc plate 1352; the second cleaning brush hair 1353 dredges and cleans the limiting through holes 147 while the mounting piece 133 is matched to move back and forth, so that smooth blanking is ensured; because of the combined action of the automatic telescopic rod 1351 and the spring 1354, the matched arc-shaped plate 1352 can move up and down to a certain extent on a straight line, so that the second cleaning brush hair 1353 can effectively dredge the guide through hole 147.
Referring to fig. 3 and 6, the bottom end of the inclined positioning frame 12 is symmetrically disposed in front and back to form an inclined end surface, and the left side of the lower end of the inclined positioning frame 12 is fixedly connected with a fine material discharging member 120; the inclined surface is arranged so that dust is not accumulated at the right-angle gap and is difficult to clean; the small-diameter granular dust finally sieved falls from the fine material discharging part 120 to be subjected to subsequent treatment, and can be used for obtaining small-diameter aggregate.
Referring to fig. 5, the magnetic separation guide member 23 includes a guide slide 231 and an electromagnet 232, the guide slide 231 is fixedly mounted on the left and right opposite wall surfaces of the material handling member 22 from top to bottom, and the electromagnets 232 are disposed on the guide slide 231; firstly, the electromagnet 232 has magnetism when electrified, can absorb iron materials, and loses magnetism when the electromagnet is powered off; the three-level construction waste falling from the discharging cylinder 146 is buffered and falls to the right side guide slide plate 231 through the left side guide slide plate 231, and is converted and dispersed back and forth between the left and right guide slide plates 231 which are arranged intermittently and alternately, so that a small amount of waste iron substances mixed in the waste iron substances are tightly adsorbed on the guide slide plate 231 due to the adsorption force of the electromagnet 232; after a batch of construction waste is disposed, the electromagnet 232 loses magnetism due to power failure, and the waste on the guide slide 231 slides out of the material handling member 22 along the inclined end surface of the guide slide 231.
Referring to fig. 3, 5 and 8, the blower 24 includes a T-shaped mounting frame 241, a pressurizing pump 242, a T-shaped connecting pipe 243, a communicating pipe 244 and an air inlet branch 245, the upper end of the second supporting and positioning frame 21 is fixedly mounted with the T-shaped mounting frame 241 and located on the right side of the material handling member 22, the pressurizing pump 242 is fixedly mounted on the upper end of the T-shaped mounting frame 241, the left end of the pressurizing pump 242 is fixedly connected with the T-shaped connecting pipe 243, the upper and lower ends of the T-shaped connecting pipe 243 are fixedly connected with the communicating pipe 244, the upper end of the upper communicating pipe 244 and the lower end of the lower communicating pipe 244 are uniformly and fixedly connected with the air inlet branch 245, the inside of the air inlet branch 245 is tapered, and the air inlet branch 245 is fixedly connected with the material handling member 22.
Referring to fig. 3 and 5, the waste collection portion 25 includes a rectangular communication frame 251 and a receiving and processing member 252, the receiving and processing member 252 is fixedly mounted on the upper end of the second supporting and positioning frame 21 and located on the left side of the material processing member 22, the rectangular communication frame 251 is fixedly connected to the right end of the receiving and processing member 252 up and down, the rectangular communication frame 251 is fixedly connected to the material processing member 22, and the upper rectangular communication frame 251 and the lower rectangular communication frame are oppositely disposed on the left and right sides of the upper and lower air inlet branch pipes 245.
The right end of the pressurizing pump 242 is connected with an air outlet of the air blower, and air is pressurized and accelerated by the pressurizing pump 242, so that air is finally blown into the material processing piece 22 from the air inlet branch pipe 245, light garbage such as plastic sheets, waste paper, wood dust and the like contained in three-stage building garbage can be blown out by certain wind force, and the light garbage can be blown into the receiving processing piece 252 from right to left through the rectangular communication frame 251 for collection processing due to the fact that the direct blowing is arranged; the tapered air inlet branch pipe 245 is arranged inside to enable the direct blowing air to blow dust and light garbage contained in the materials into the receiving and treating piece 252 arranged on the left side at the last increasing air speed.
The working principle of the invention is as follows: the secondary construction waste is continuously conveyed and screened through the conveying screening part 14, broken stone and dust with the diameter smaller than 5mm in the secondary construction waste are screened, the small particle matters fall into the inclined positioning frame 12 from the conveying screening part 14 and then slide out from the inclined positioning frame 12 to the left and the lower side, and the cleaning and dredging part 13 can clean the contact part with the conveying screening part 14 and the inner bottom end of the inclined positioning frame 12 according to intermittent timing, so that the small particle matters can be ensured to fall from the conveying screening part 14 quickly and be discharged from the inclined positioning frame 12 thoroughly; the inclined positioning frame 12 and the conveying and screening part 14 are arranged in an inclined manner, so that the secondary construction waste can be conveyed while small-diameter particles are filtered, and substances screened into the inclined positioning frame 12 can be discharged rapidly; the three-stage construction waste treated by the conveying and screening part 14 falls from the upper end of the material treatment part 22, the falling three-stage construction waste is adsorbed by the magnetic separation guide part 23 to possibly mix with iron waste, then the falling material is buffered by the magnetic separation guide part 23 and then light garbage and dust possibly mixed with the material are blown out from right to left through the blowing part 24, the light garbage, dust and the like are blown into the left waste collection part 25 to fall and collect, and finally the material discharged from the lower part of the material treatment part 22 can be collected as recycled construction aggregate.
In the description of the present invention, it should be understood that the terms "middle," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "axial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features which is indicated. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, or slidably connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle according to the present invention should be covered in the protection scope of the present invention.
Claims (5)
1. The utility model provides a construction waste treatment technology, its has used a construction waste treatment device, this construction waste treatment device includes particle diameter screening unit (1), particle diameter screening unit (1) right side is provided with impurity removal unit (2), its characterized in that: the specific process for treating the construction waste by adopting the construction waste treatment device is as follows:
s1, manual sorting: manually sorting out large-size metal, plastic, wood and waste paper in the construction waste, wherein the rest concrete stone is used as primary construction waste to be treated;
s2, primary crushing: primary construction waste is crushed by a jaw crusher, and the output crushed aggregates are subjected to primary magnetic attraction by a magnetic attraction device to remove metal substances mixed in the crushed aggregates, so that primary construction waste is obtained;
s3, secondary crushing: performing secondary crushing treatment on the primary construction waste by using a cone crusher to obtain secondary construction waste with the diameter smaller than 30 mm;
s4, screening particle sizes: the particle size screening unit (1) is used for screening out particle dust with the particle size smaller than 5mm in the secondary building rubbish to obtain the tertiary building rubbish with the particle size larger than 5mm and smaller than 30 mm;
s5, removing impurities: the method comprises the steps of removing a small amount of waste iron, plastic, wood dust and waste paper possibly contained in three-stage building waste through an impurity removing unit (2), and finally obtaining recycled building aggregate;
s6, washing and drying: washing the recycled building aggregate with water to remove dust attached to the surface, and drying after washing, so as to obtain clean recycled building aggregate which can be used as concrete ingredients;
the particle size screening unit (1) comprises a first supporting and positioning frame (11), an inclined positioning frame (12) is fixedly arranged at the upper end of the first supporting and positioning frame (11), a cleaning and dredging part (13) is arranged in the inclined positioning frame (12), and a conveying screening part (14) is fixedly arranged on the inclined positioning frame (12);
the impurity removing unit (2) comprises a supporting and positioning frame II (21), the right side of the supporting and positioning frame I (11) is provided with a supporting and positioning frame II (21), a material processing part (22) is fixedly arranged on the supporting and positioning frame II (21), a magnetic separation guide part (23) is arranged in the material processing part (22), a blowing part (24) is fixedly arranged at the upper end of the supporting and positioning frame II (21) and positioned at the right side of the material processing part (22), a waste collecting part (25) is fixedly arranged at the upper end of the supporting and positioning frame II (21) and positioned at the left side of the material processing part (22), the blowing part (24) and the waste collecting part (25) are fixedly connected with the material processing part (22), and the middle part of the upper end of the material processing part (22) is fixedly connected with the conveying sieve part (14);
the conveying screening part (14) comprises a fixed cylinder (141), a fixed cylinder (141) is fixedly installed on an inclined positioning frame (12), a linkage rod (142) is rotationally connected to the fixed cylinder (141), a spiral blade (143) is arranged on the linkage rod (142), a motor (144) is fixedly installed at the left end of the fixed cylinder (141) through a motor seat, an output shaft of the motor (144) is fixedly connected with the linkage rod (142), a feeding funnel (145) is fixedly installed at the left side of the upper end of the fixed cylinder (141), a discharging cylinder (146) is fixedly installed at the right side of the lower end of the fixed cylinder (141), the lower end of the discharging cylinder (146) is fixedly connected with a material processing part (22), and limiting through holes (147) are uniformly formed in the left side of the fixed cylinder (141) along an arc surface;
the cleaning dredging part (13) comprises fixed sliding rails (131), fixed sliding rails (131) are fixedly arranged on front and rear opposite wall surfaces in the inclined positioning frame (12), electric sliding blocks (132) are slidably arranged on the fixed sliding rails (131), matched mounting pieces (133) are fixedly arranged between the electric sliding blocks (132), cleaning bristles I (134) are uniformly arranged at the lower ends of the matched mounting pieces (133), and cambered surface cleaning groups (135) are arranged at the upper ends of the matched mounting pieces (133);
the cambered surface clearance group (135) include automatic telescopic link (1351), all fixed mounting has automatic telescopic link (1351) on a plurality of planes of cooperation installed part (133), and automatic telescopic link (1351) upper end fixed mounting has cooperation arc (1352) jointly, and cooperation arc (1352) upper end cambered surface evenly is provided with clearance brush hair two (1353), all overlaps on automatic telescopic link (1351) and is equipped with spring (1354), spring (1354) one end and cooperation installed part (133) fixed connection, the other end and cooperation arc (1352) fixed connection.
2. A construction waste treatment process according to claim 1, wherein: the utility model provides a portion of blowing (24) is including T shape mounting bracket (241), the upper end of supporting locating rack two (21) just is located material handling spare (22) right side fixed mounting has T shape mounting bracket (241), T shape mounting bracket (241) upper end fixed mounting has force (forcing) pump (242), force (forcing) pump (242) left end fixedly connected with T shape connecting pipe (243), the upper and lower both ends of T shape connecting pipe (243) are all fixedly connected with communicating pipe (244), the equal fixedly connected with air inlet branch pipe (245) of upside communicating pipe (244) upper end and downside communicating pipe (244) lower extreme, inside all setting of air inlet branch pipe (245) is the tapering, air inlet branch pipe (245) all with material handling spare (22) fixed connection.
3. A construction waste treatment process according to claim 1, wherein: the waste collection portion (25) comprises a rectangular communication frame (251), the upper end of the supporting and positioning frame II (21) is fixedly provided with a receiving and processing piece (252) which is positioned on the left side of the material processing piece (22), the right end of the receiving and processing piece (252) is fixedly connected with the rectangular communication frame (251) up and down, the rectangular communication frame (251) is fixedly connected with the material processing piece (22), and the upper rectangular communication frame (251) and the upper air inlet branch pipe and the lower air inlet branch pipe (245) are oppositely arranged left and right.
4. A construction waste treatment process according to claim 1, wherein: the magnetic separation guide piece (23) comprises a guide slide plate (231), the guide slide plate (231) is fixedly installed on the left and right opposite wall surfaces of the material treatment piece (22) from top to bottom in a staggered mode, and electromagnets (232) are arranged on the guide slide plate (231).
5. A construction waste treatment process according to claim 1, wherein: the inner bottom of the inclined positioning frame (12) is provided with inclined end faces in a front-back symmetrical mode, and the left side of the lower end of the inclined positioning frame (12) is fixedly connected with a fine material discharging part (120).
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