CN114101273A

CN114101273A - Recycling processing method of construction waste

Info

Publication number: CN114101273A
Application number: CN202111342170.4A
Authority: CN
Inventors: 陈丽
Original assignee: Shenzhen Hongtu Construction Co ltd
Current assignee: Wuhan Borui Century Landscape Engineering Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-03-01
Anticipated expiration: 2041-11-12
Also published as: CN114101273B

Abstract

The invention discloses a recycling processing method of construction waste, which comprises the following steps: s100, carrying out primary sorting and recycling on the construction waste; s200, conveying the preliminarily sorted construction waste to be crushed into a first crusher for crushing, and carrying out secondary sorting on the crushed construction waste to obtain recyclable ironware, muck and construction waste to be further crushed; s300, conveying the construction waste needing further crushing to a second crusher for crushing, and carrying out tertiary sorting on the crushed construction waste to obtain recyclable ironware, finished aggregate and light impurities. Can carry out recovery processing in the place that building rubbish produced, practice thrift the cost of transportation, through the multi-stage treatment to building rubbish, all sort the rubbish of difference class among the building rubbish when each level is handled to carry out the recovery of different modes to the rubbish of difference class, make building rubbish obtain abundant recycle, avoid building rubbish stack and the environmental pollution who landfill caused.

Description

Recycling processing method of construction waste

Technical Field

The invention relates to the technical field of construction waste recovery, in particular to a method for recovering, processing and treating construction waste.

Background

The construction waste refers to the general name of dregs, waste concrete, waste bricks and other wastes generated in the production activities of the construction industry such as demolition, construction, decoration, repair and the like, and the materials are not helpful for the construction per se, but are substances generated in the construction process and need to be correspondingly treated, so that the ideal engineering project construction can be achieved; the quantity of the construction waste in China accounts for 30-40% of the total quantity of the urban waste, and the newly generated construction waste is a shocking number in the future calculated according to the standard of 500-600 tons/ten thousand square meters; however, most of the construction wastes are not treated at all, and are transported to the suburbs or villages by construction units, and are stacked or buried in the open air, so that a large amount of construction expenses such as land acquisition expenses and garbage clearing and transporting expenses are consumed, and meanwhile, the problems of scattering, dust, sand flying and the like in the clearing and stacking processes cause serious environmental pollution; therefore, if the construction waste cannot be effectively treated, the following problems can occur, the construction waste is easy to stack at will to generate potential safety hazards, the construction waste seriously pollutes water resources, the air quality is also influenced, and the soil quality can be reduced when the construction waste occupies the land. Therefore, there is a need to provide a recycling method for construction waste to at least partially solve the problems of the prior art.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to at least partially solve the problems, the invention provides a method for recycling, processing and treating construction waste, which comprises the following steps:

s100, carrying out primary sorting and recycling on the construction waste;

s200, conveying the preliminarily sorted construction waste to be crushed into a first crusher for crushing, and carrying out secondary sorting on the crushed construction waste to obtain recyclable ironware, muck and construction waste to be further crushed;

s300, conveying the construction waste needing further crushing to a second crusher for crushing, and carrying out tertiary sorting on the crushed construction waste to obtain recyclable ironware, finished aggregate and light impurities.

Preferably, the light impurities are treated and recovered by a light matter processor.

Preferably, the ironware is sorted from the crushed construction waste by a magnet.

Preferably, the muck and finished aggregate are separated from the crushed construction waste through a vibrating screen.

Preferably, the second crusher comprises an outer shell, a first-stage crushing mechanism is arranged in the outer shell, a first sieve tray is arranged below the first-stage crushing mechanism, a second conical sieve tray is arranged below the first sieve tray, a cylinder is arranged at the center of the second sieve tray in a downward extending mode, a second-stage crushing mechanism is arranged in the cylinder, and a driving mechanism enabling the first sieve tray and the second sieve tray to move up and down is further arranged on the outer shell.

Preferably, the primary crushing mechanism comprises a first driving part, the first driving part is arranged above the shell, the output end of the first driving part is in driving connection with a first rotating shaft which is rotatably connected to the top of the shell, the bottom end of the first rotating shaft extends into the shell, a sliding rod which is perpendicular to the axis of the first rotating shaft is arranged on the first rotating shaft, a sliding block is arranged on the sliding rod in a sliding manner, a second driving part is arranged on the sliding block, a second rotating shaft is rotatably arranged on the sliding block, the second driving part drives the second rotating shaft to rotate, and a crushing disc is arranged at one end, close to the first sieve disc, of the second rotating shaft;

a sliding sleeve is slidably sleeved on the outer side of the first rotating shaft, a driving disc is arranged on the outer side of the sliding sleeve, a threaded hole is formed in the driving disc, a rotating screw is connected in the threaded hole in a threaded manner, one end of the rotating screw is rotatably connected with a fixing plate arranged on the first rotating shaft, the other end of the rotating screw is connected with a third driving part arranged on the first rotating shaft, a hinge rod is hinged to one side of the driving disc, and the other end of the hinge rod is hinged to the sliding block;

a plurality of first through holes are formed in the first sieve tray.

Preferably, a first gear is arranged at the top end of the second rotating shaft, and a toothed ring matched with the first gear is arranged on the inner side wall of the shell.

Preferably, the crushing disc is connected with the second rotating shaft through a buffer device, the buffer device comprises a connecting rod, one end of the connecting rod is connected with the crushing disc, the other end of the connecting rod is connected in the second rotating shaft in a sliding manner, arc-shaped recesses are arranged on two opposite sides of the connecting rod, one end of each arc-shaped recess close to the crushing disc is smoothly connected with a first arc-shaped bulge, one end of each arc-shaped recess far away from the crushing disc is smoothly connected with a second arc-shaped bulge, the arc-shaped recesses, the first arc-shaped bulges and the second arc-shaped bulges form wave-shaped limiting grooves, idler wheels are connected in the wave-shaped limiting grooves in a rolling manner, the idler wheels are rotatably connected with a connecting plate through rotating shafts, one end of the connecting plate far away from the idler wheels is hinged in the second rotating shaft, and one end of the second rotating shaft close to the crushing disc is provided with a movable cavity, the top in activity chamber be equipped with connecting plate articulated hinge groove, the top in hinge groove is equipped with the confession the gliding sliding tray of connecting rod tip, the gyro wheel stretches out the setting in activity chamber, the connecting plate is kept away from one side of connecting rod with be connected with first spring between the lateral wall in activity chamber.

Preferably, the secondary crushing mechanism comprises a fourth driving part, the fourth driving part is arranged at the bottom of the outer shell, the output end of the fourth driving part is connected with a driving shaft, one end of the driving shaft, which is far away from the fourth driving part, penetrates through the cylinder and is rotatably connected with a connecting cylinder arranged at the bottom of the first sieve tray, the driving shaft and the connecting cylinder can slide relatively, and a plurality of crushing knives are arranged on the outer side of the driving shaft;

be equipped with a plurality of second through-holes on the second sieve dish, the bottom surface of second sieve dish is equipped with a plurality of electromagnetism iron strips, the electromagnetism iron strip sets up a plurality ofly the interval department of second through-hole.

Preferably, a mounting shell is arranged on one side of the outer shell, and the driving mechanism is arranged in the mounting shell;

the driving mechanism comprises a second gear, the second gear is connected with the output end of a fifth driving part, a third gear is arranged on one side, close to the shell, of the second gear, a first driving rod is arranged on one side, close to the shell, of the third gear, one end of the first driving rod extends into the shell, the first driving rod is arranged between the first sieve tray and the second sieve tray, a second driving rod is arranged on the bottom surface of the first sieve tray, and the end part of the second driving rod is hinged to the end part, far away from the third gear, of the first driving rod;

the second gear and the third gear are both incomplete gears, a first gear group and a second gear group are oppositely arranged on the second gear, a third gear group and a fourth gear group are arranged on the third gear, the number of teeth of the fourth gear group is less than that of the third gear group, a baffle is arranged at the bottom in the installation shell and is abutted against the fourth gear group, and a first driving rod is arranged on one side, far away from the baffle, of the fourth gear group;

a stop block is arranged on the side surface of the third gear, and a second spring is connected between the stop block and the inner bottom surface of the mounting shell;

a first annular groove is formed in the inner side wall of the shell, the first screen disc is slidably arranged in the first annular groove, and a third spring is arranged between the top surface of the first screen disc and the top surface of the first annular groove;

a second annular groove is formed in the inner side wall of the shell, the second sieve tray is arranged in the second annular groove in a sliding mode through a sliding ring arranged in the circumferential direction of the second sieve tray, and a fourth spring is arranged between the bottom surface of the sliding ring and the bottom surface of the second annular groove;

the bottom surface of the first sieve tray is connected with the top surface of the slip ring through an arc-shaped plate.

Compared with the prior art, the invention at least comprises the following beneficial effects:

the method for recycling and processing the construction waste can recycle the construction waste at places where the construction waste is generated, saves transportation cost, and can sort different types of waste in the construction waste during each stage of treatment through multi-stage treatment of the construction waste and recycle the different types of waste in different modes, so that the construction waste is fully recycled, and the environmental pollution caused by stacking and landfill of the construction waste is avoided.

Other advantages, objects, and features of the construction waste recycling process of the present invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic flow chart of the method for recycling, processing and treating construction waste according to the present invention.

Fig. 2 is a schematic view of the internal structure of the second crusher in the method for recycling, processing and treating construction waste according to the present invention.

Fig. 3 is a schematic structural diagram of a primary crushing mechanism in the method for recycling, processing and treating construction waste.

Fig. 4 is a schematic view of the internal structure of the buffering device in the method for recycling, processing and treating construction waste according to the present invention.

Fig. 5 is a schematic structural diagram of a buffering device in the method for recycling, processing and treating construction waste according to the present invention.

Fig. 6 is a schematic structural diagram of a secondary crushing mechanism in the method for recycling, processing and treating construction waste.

Fig. 7 is a schematic structural diagram of a driving mechanism in the method for recycling, processing and treating construction waste according to the present invention.

Fig. 8 is a schematic view of the first sieve tray in the initial position in the method for recycling, processing and treating construction waste according to the present invention.

Fig. 9 is a schematic view of the first sieve tray after height adjustment in the method for recycling, processing and treating construction waste according to the present invention.

Fig. 10 is a schematic diagram of the height adjustment of the first sieve tray in the construction waste recycling processing method according to the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 10, the present invention provides a method for recycling and processing construction waste, comprising:

s100, carrying out primary sorting and recycling on the construction waste;

s200, conveying the preliminarily sorted construction waste to be crushed into a first crusher 1 for crushing, and carrying out secondary sorting on the crushed construction waste to obtain a recyclable ironware, muck 2 and construction waste to be further crushed;

s300, conveying the construction waste needing further crushing to a second crusher 3 for crushing, and carrying out tertiary sorting on the crushed construction waste to obtain a recyclable ironware, a finished aggregate 4 and light impurities 5.

The working principle of the technical scheme is as follows: in the place where the construction waste is generated, the preliminary separation can be firstly carried out, for example, the waste metal such as waste steel bars and the like and the waste wood construction waste which are well treated can be manually selected and recycled, the waste steel bars and other waste metal materials can be directly recycled or processed in a furnace, the wood which is not obviously damaged can be directly reused for reconstructing a building, the seriously damaged wood component can be used as the raw material of a wood regenerated plate or for papermaking and the like, the rest construction waste is crushed by a first crusher 1, the first crusher 1 can be a jaw crusher for treating the construction waste with larger volume, the construction waste is crushed by the first crusher 1 and then is secondarily separated, the waste ironware can be separated by a magnetic separation mode, the crushed waste is sieved and separated out the slag 2, the slag 2 can be used for road building construction, pile foundation filling, foundation and the like, then the construction waste which needs to be further crushed is put into a second crusher 3 for crushing, the crushed construction waste is sorted for three times, the waste iron device can be sorted by using a magnetic separation mode, then the crushed construction waste is sieved, the finished aggregate 4 meeting the particle size requirement is sorted out, the finished aggregate 4 which does not meet the particle size requirement is put into the second crusher 3 again for crushing, the light sundries 5 in the finished aggregate 4 meeting the particle size requirement are sorted, a flotation machine can be selected for sorting the light sundries 5 to effectively separate the finished aggregate 4 and the light sundries 5, the finished aggregate 4 can be used for producing concrete and mortar with corresponding strength grade or preparing products such as building blocks, wall boards, floor tiles and the like, and the finished aggregate 4 is added with curing materials, it can also be used for road base course.

The beneficial effects of the above technical scheme are that: by the method, the construction waste can be recycled at places where the construction waste is generated, the transportation cost is saved, different types of waste in the construction waste are sorted during each stage of treatment through multi-stage treatment of the construction waste, and different types of waste are recycled, so that the construction waste is fully recycled, and the environmental pollution caused by stacking and landfill of the construction waste is avoided.

In one embodiment, the light impurities 5 are disposed of and recycled by a light materials handler 6.

The working principle and the beneficial effects of the technical scheme are as follows: the lightweight sundries 5 comprise paper scraps, cloth pieces, plastics and other impurities with lighter weight, and the lightweight sundries are mixed in the finished aggregate 4 and can influence the recycling value of the finished aggregate 4, so that after the lightweight sundries 5 are sorted out, the lightweight sundries 5 are treated by the lightweight material processor 6 to obtain the lightweight aggregate, and the lightweight aggregate can be used for incineration power generation or used as fuel, so that the utilization rate of the lightweight aggregate is improved, and the recycling value of construction waste is improved.

In one embodiment, the ironware is separated from the broken construction waste by a magnet.

The working principle and the beneficial effects of the technical scheme are as follows: the ironware can be sorted by the electromagnet, for example, the electromagnet with strong suction force is installed in the crusher, the ironware is sorted while being crushed, or the electromagnet is separately arranged, the ironware is sorted in the crushed construction waste, and the waste metal mixed in the waste is adsorbed by the magnetic suction force.

In one embodiment, the muck 2 and finished aggregate 4 are separated from the crushed construction waste by a vibrating screen 7.

The working principle and the beneficial effects of the technical scheme are as follows: the vibrating screen 7 provides vibration and screening functions, effectively separates the muck 2 and the finished aggregate 4 from the construction waste, and the vibrating screen 7 can select a screen through which the finished aggregate 4 with different particle sizes can pass according to the required particle size of the finished aggregate 4, so that the finished aggregate 4 with different particle sizes can be conveniently sorted.

In one embodiment, the second crusher 3 includes an outer shell 310, a primary crushing mechanism 320 is provided in the outer shell 310, a first sieve tray 330 is provided below the primary crushing mechanism 320, a second conical sieve tray 340 is provided below the first sieve tray 330, a cylinder 350 extends downwards from the center of the second sieve tray 340, a secondary crushing mechanism 360 is provided in the cylinder 350, and a driving mechanism 370 for moving the first sieve tray 330 and the second sieve tray 340 up and down is further provided on the outer shell 310.

The working principle and the beneficial effects of the technical scheme are as follows: a feeding hole is formed in one side of the shell 310, construction waste crushed by the first crusher 1 can be intermittently fed to a feeding hole of the second crusher 3 through a vibrating plate feeder, the construction waste to be crushed is firstly conveyed to the first sieve tray 330, then primary crushing treatment is carried out under the combined action of the primary crushing mechanism 320 and the first sieve tray 330, the crushed material falls onto the second sieve tray 340 through the first sieve tray 330, the material which cannot pass through the second sieve tray 340 slides to the secondary crushing mechanism 360 for secondary crushing through the conical arrangement of the second sieve tray 340, and then falls to an outlet at the bottom of the shell 310 from the cylinder 350, when the first sieve tray 330 and the second sieve tray 340 are blocked, the first sieve tray 330 and the second sieve tray 340 can be driven by the driving mechanism 370 to vibrate up and down, so that the blocked material slides from holes on the sieve trays through vibration, guarantee second breaker 3's stability in use, make the material can carry out meticulous grinding through setting up one-level crushing mechanism 320 and second grade crushing mechanism 360, obtain the less finished product aggregate 4 of particle diameter.

In one embodiment, the primary crushing mechanism 320 includes a first driving part 321, the first driving part 321 is disposed above the outer shell 310, an output end of the first driving part 321 is in driving connection with a first rotating shaft 322 rotatably connected to the top of the outer shell 310, a bottom end of the first rotating shaft 322 extends into the outer shell 310, a sliding rod 323 perpendicular to an axis of the first rotating shaft 322 is disposed on the first rotating shaft 322, a sliding block 324 is slidably disposed on the sliding rod 323, a second driving part is disposed on the sliding block 324, a second rotating shaft 325 is rotatably disposed on the sliding block 324, the second driving part drives the second rotating shaft 325 to rotate, and a crushing disc 326 is disposed at one end of the second rotating shaft 325 close to the first sieve tray 330;

a sliding sleeve 327 is slidably sleeved on the outer side of the first rotating shaft 322, a driving disc is arranged on the outer side of the sliding sleeve 327, a threaded hole is formed in the driving disc, a rotating screw 328 is connected to the threaded hole in a threaded manner, one end of the rotating screw 328 is rotatably connected with a fixing plate arranged on the first rotating shaft 322, the other end of the rotating screw 328 is connected with a third driving portion 329 arranged on the first rotating shaft 322, a hinge rod 3210 is hinged to one side of the driving disc, and the other end of the hinge rod 3210 is hinged to the sliding block 324;

a plurality of first through holes are formed in the first sieve tray 330.

The working principle and the beneficial effects of the technical scheme are as follows: the sliding rod 323 is provided with a plurality of sliding rods 323, when the primary crushing mechanism 320 is used for crushing, the first driving part 321 is controlled to be opened, the first driving part 321 drives the first rotating shaft 322 to rotate, the first rotating shaft 322 drives the sliding rod 323, the sliding block 324, the second driving part, the second rotating shaft 325, the crushing disc 326, the sliding sleeve 327, the driving disc, the rotating screw 328, the third driving part 329 and the hinge rod 3210 to rotate together, so that the crushing discs 326 can rotate along the axis of the first rotating shaft 322 simultaneously, the construction waste between the crushing disc 326 and the first sieve disc 330 is ground and crushed by the rotating friction between the crushing disc 326 and the first sieve disc 330, the bottom surface of the crushing disc 326 is provided with a plurality of grinding bulges, the second rotating shaft 325 is driven to rotate by the second driving part while the crushing discs 326 revolve along the axis of the first rotating shaft 322, so that the crushing disc 326 rotates along the axis of the second rotating shaft 325, still can rotate through the drive of third drive portion 329 rotation of rotation screw 328, it is rotatory to rotate screw 328 and makes driving disc drive sliding sleeve 327 reciprocate along the axis of first axis of rotation 322, it can set up to the screw rod of two-way screw thread to rotate screw rod 328, make sliding sleeve 327 can up-and-down reciprocating motion, and then drive articulated rod 3210 motion, articulated rod 3210 drives slider 324 and slides on slide bar 323, make a plurality of broken dishes 326 keep away from each other simultaneously or be close to each other, make the material contact on the broken dish 326 that can be abundant and the first sieve dish 330 broken, the efficiency of crushing is improved.

In one embodiment, a first gear 3211 is disposed at a top end of the second rotating shaft 325, and a toothed ring 311 engaged with the first gear 3211 is disposed on an inner sidewall of the housing 310.

The working principle and the beneficial effects of the technical scheme are as follows: when the sliding block 324 moves to the end part of the sliding rod 323 far away from the first rotating shaft 322, the grinding diameters of the plurality of crushing disks 326 are the largest, materials at the corners of the first sieve tray 330 can be ground and crushed, and at the moment, the stress of the sliding rod 323 is the largest, so that the first gear 3211 is arranged at the top end of the second rotating shaft 325, when the crushing disks 326 move to the position far away from the first rotating shaft 322, the first gear 3211 can be meshed with the toothed ring 311, a certain radial supporting force is provided for the second rotating shaft 325, the stress of the sliding rod 323 is further reduced, and the use stability of the primary crushing mechanism 320 is further ensured.

In one embodiment, the crushing disk 326 is connected with the second rotating shaft 325 through a buffer device 8, the buffer device 8 comprises a connecting rod 810, one end of the connecting rod 810 is connected with the crushing disk 326, the other end of the connecting rod 810 is slidably connected in the second rotating shaft 325, two opposite sides of the connecting rod 810 are provided with arc-shaped recesses 811, one end of the arc-shaped recess 811 close to the crushing disk 326 is smoothly connected with a first arc-shaped protrusion 812, one end of the arc-shaped recess 811 far away from the crushing disk 326 is smoothly connected with a second arc-shaped protrusion 813, the arc-shaped recess 811, the first arc-shaped protrusion 812 and the second arc-shaped protrusion 813 form a wave-shaped limiting groove, a roller 820 is rotatably connected in the wave-shaped limiting groove, the roller 820 is rotatably connected with a connecting plate 830 through a rotating shaft, one end of the connecting plate 830 far away from the roller 820 is hinged in the second rotating shaft 325, one end of the second rotating shaft 325 close to the crushing disc 326 is provided with a movable cavity 840, a hinge groove 850 hinged to the connecting plate 830 is arranged above the movable cavity 840, a sliding groove 860 for the end of the connecting rod 810 to slide is arranged above the hinge groove 850, the roller 820 extends out of the movable cavity 840, and a first spring 870 is connected between one side of the connecting plate 830 far away from the connecting rod 810 and the side wall of the movable cavity 840.

The working principle and the beneficial effects of the technical scheme are as follows: when the crushing disc 326 crushes the materials, the crushing disc 326 grinds the materials through revolution and rotation thereof, the materials apply radial and axial forces to the crushing disc 326, the gap between the crushing disc 326 and the first sieve disc 330 may be larger for the materials with larger particle size, so that the crushing disc 326 cannot effectively crush the materials, therefore, when the crushing disc 326 touches the materials with larger particle size, under the action of the materials, the crushing disc 326 moves upwards through the connecting rod 810, the distance between the crushing disc 326 and the first sieve disc 330 becomes larger, the materials with larger particle size can enter between the crushing disc 326 and the first sieve disc 330 to be ground, after the crushing disc 326 is stressed, the connecting rod 810 moves upwards, the initial position of the roller 820 is located in the arc-shaped recess 811, when the connecting rod 810 moves upwards, the roller 820 slides along the wave-shaped limiting groove to move to the first arc-shaped recess 812, make two gyro wheels 820 keep away from each other, and then make two connecting plates 830 compress first spring 870 simultaneously, after the great material of particle diameter is broken, under the elastic action of first spring 870, promote two connecting plates 830 and be close to each other and resume to initial position, and then make connecting rod 810 drive broken dish 326 and resume to initial position under gyro wheel 820's effect, continue to grind the breakage to the material, through buffer 8, make when carrying out the breakage to the material, prevent that the great material of particle diameter can not carry out effectual grinding breakage, promote the crushing efficiency of one-level crushing mechanism 320, make the material by abundant grinding.

In one embodiment, the secondary crushing mechanism 360 comprises a fourth driving part 361, the fourth driving part 361 is arranged at the bottom of the outer shell 310, the output end of the fourth driving part 361 is connected with a driving shaft 362, one end of the driving shaft 362 far away from the fourth driving part 361 passes through the cylinder 350 and is rotatably connected with a connecting cylinder arranged at the bottom of the first sieve tray 330, the driving shaft 362 and the connecting cylinder can slide relatively, and a plurality of crushing knives 363 are arranged outside the driving shaft 362;

the second sieve tray 340 is provided with a plurality of second through holes, the bottom surface of the second sieve tray 340 is provided with a plurality of electromagnet strips 341, and the electromagnet strips 341 are arranged at intervals of the plurality of second through holes.

The working principle and the beneficial effects of the technical scheme are as follows: the materials falling onto the second sieve tray 340 slide into the cylinder 350 through the conical surface of the second sieve tray 340, the driving shaft 362 rotates through the fourth driving part 361 to drive the plurality of crushing knives 363 to rotate simultaneously, so that the materials falling into the cylinder 350 are crushed by the crushing knives 363, the materials falling onto the second sieve tray 340 from the first sieve tray 330 with smaller particle size can be directly discharged from the second through holes on the second sieve tray 340 for recycling, when the materials fall from the second through holes, if the materials are waste metals, the materials are adsorbed by the electromagnet strips 341 when falling, the length of the electromagnet strips 341 can be set as required, and the waste metals discharged from the bottom of the cylinder 350 can be adsorbed, so that ironware contained in the materials can be separated when the construction waste is crushed, the processing efficiency is improved, after all the finished aggregates 4 are discharged from the shell 310, the electromagnet strips 341 can be powered off, make the old and useless metal that adsorbs on electromagnetism iron 341 drop, then retrieve it, convenient and fast.

In one embodiment, a mounting shell 380 is provided at one side of the housing 310, and the driving mechanism 370 is disposed in the mounting shell 380;

the driving mechanism 370 includes a second gear 371, the second gear 371 is connected to an output end of a fifth driving part 372, a third gear 373 is disposed on a side of the second gear 371 close to the housing 310, a first driving rod 374 is disposed on a side of the third gear 373 close to the housing 310, one end of the first driving rod 374 extends into the housing 310, the first driving rod 374 is disposed between the first sieve tray 330 and the second sieve tray 340, a second driving rod 375 is disposed on a bottom surface of the first sieve tray 330, and an end portion of the second driving rod 375 is hinged to an end portion of the first driving rod 374 away from the third gear 373;

the second gear 371 and the third gear 373 are both incomplete gears, the second gear 371 is relatively provided with a first tooth group 3711 and a second tooth group 3712, the third gear 373 is provided with a third tooth group 3731 and a fourth tooth group 3732, the number of teeth of the fourth tooth group 3732 is less than that of the third tooth group 3731, a baffle 381 is arranged at the bottom in the mounting shell 380, the baffle 381 abuts against the fourth tooth group 3732, and the first driving rod 374 is arranged on one side, away from the baffle 381, of the fourth tooth group 3732;

a stop block is arranged on the side surface of the third gear 373, and a second spring 376 is connected between the stop block and the inner bottom surface of the mounting shell 380;

a first annular groove is formed in the inner side wall of the housing 310, the first sieve tray 330 is slidably arranged in the first annular groove, and a third spring 390 is arranged between the top surface of the first sieve tray 330 and the top surface of the first annular groove;

a second annular groove is formed in the inner side wall of the shell 310, the second sieve tray 340 is arranged in the second annular groove in a sliding mode through a sliding ring arranged in the circumferential direction of the second sieve tray, and a fourth spring 3100 is arranged between the bottom surface of the sliding ring and the bottom surface of the second annular groove;

the bottom surface of the first sieve tray 330 is connected with the top surface of the slip ring through an arc-shaped plate.

The working principle of the technical scheme is as follows: when the driving mechanism 370 is in an initial state, the first tooth group 3711 and the second tooth group 3712 of the second gear 371 are not engaged with the third tooth group 3731 and the fourth tooth group 3732 of the third gear 373, the fourth tooth group 3732 abuts against the baffle 381 under the pulling force of the second spring 376, the first driving rod 374 is in a horizontal state, the first driving rod 374 is telescopic, at this time, the first driving rod 374 is shortest, the first sieve tray 330 is located at the bottom end of the first annular groove under the action of the third spring 390, and the second sieve tray 340 and the first sieve tray 330 are kept in a static state; when the anti-blocking treatment is required to be carried out on the first sieve tray 330 and the second sieve tray 340, the fifth driving part 372 is started, the second gear 371 is intermittently rotated by 180 degrees, the first tooth group 3711 is meshed with the third tooth group 3731 to drive the third gear 373 to rotate, the third gear 373 rotates to drive the first driving rod 374 to rotate upwards, the second driving rod 375 is driven to drive the first sieve tray 330 to move upwards and compress the third spring 390, meanwhile, the second sieve tray 340 also moves upwards to drive the fourth spring 3100 to be stretched, when the first tooth group 3711 and the third tooth group 3731 are disengaged, the first sieve tray 330 and the second sieve tray 340 are accelerated to move downwards under the action of the second spring 376, the third spring 390 and the fourth spring 3100 to generate a vibration effect, and when the vibration effect disappears, the second gear 371 rotates by 180 degrees again to drive the second tooth group 3712 to be meshed with the third tooth group 3731 to repeat the actions, so that the first sieve tray 330 and the second sieve tray 340 simultaneously vibrate to discharge the materials blocked in the first through hole and the second through hole by vibration, thereby achieving the purpose of blocking prevention.

The beneficial effects of the above technical scheme are that: under the action of the baffle 381 and the second spring 376, the rotation of the third gear 373 is limited, and under the combined action of the second spring 376, the third spring 390 and the fourth spring 3100, the vibration effect and the resetting of the first sieve tray 330 and the second sieve tray 340 are realized, so that the purpose of preventing blockage is achieved while the work of the crushing mechanism is not influenced;

in addition, the distance between the first sieve tray 330 and the crushing tray 326 can be adjusted by the driving mechanism 370, when the first tooth set 3711 is engaged with the third tooth set 3731, the first sieve tray 330 starts to move upwards, and when the first tooth set 3711 is moved to a required position, the first tooth set 3711 and the third tooth set 3731 are not disengaged, that is, the third spring 390 is not completely compressed, and at this time, the second gear 371 is stopped rotating, so that the first tooth set 3711 and the third tooth set 3731 are engaged all the time, the distance between the first sieve tray 330 and the crushing tray 326 is ensured, and the distance between the crushing tray 326 and the first sieve tray 330 can be adjusted according to the amount of the material entering the housing 310, so as to grind the material fully and quickly.

In one embodiment, a detection device is further included for detecting the average height of the material on the first sifter tray 330, and the distance between the first sifter tray 330 and the crushing tray 326 is adjusted to correspond to the grinding-crushing spacing by the detected average height;

the steps of the detecting device detecting the average height of the material on the first sieve tray 330 and adjusting the height of the first sieve tray 330 by the driving mechanism 370 are as follows:

step A1, quantitatively feeding materials into the second crusher 3 through a feeding machine to obtain the volume V of the materials on the first sieve tray 330;

step a2, calculating the required grinding distance D between the first sifter tray 330 and the crushing tray 326 when the average height of the material is h:

wherein the content of the first and second substances,

s is the area of the first sieve tray 330, H is the maximum distance between the top surface of the first sieve tray 330 and the bottom surface of the crushing tray 326 in the initial state, and H' is the grinding compensation height;

step a3, calculating an angle α of rotation of the third gear 373 according to the grinding distance D:

wherein L is the length of the first driving rod 374 in the horizontal state, and arctan is an inverse trigonometric function;

step a4, determining a rotation angle of the fifth driving part 372 according to an angle that the third gear 373 needs to rotate, and adjusting the height of the first sieve tray 330;

in addition, when the second crusher 3 is in operation, the detection device monitors the average height of the material on the first sieve tray 330 in real time, and adjusts the height of the first sieve tray 330 through the driving mechanism 370 in real time, which includes the following specific steps:

step B1, measuring the average height h of the material on the first sieve tray 330 at a certain moment t_tAnd calculating the grinding distance D required at the moment_t：

D_t＝(H-h_t)+h′

Step B2, calculating an angle β that the third gear 373 needs to rotate at a certain time t_t：

Wherein, beta_t-1The angle of rotation of the third gear 373 at the previous time t-1;

in step B3, the rotation angle of the fifth driving part 372 is determined according to the required rotation angle of the third gear 373, and the height of the first sieve tray 330 is adjusted.

The working principle and the beneficial effects of the technical scheme are as follows: the volume fed to the second crusher 3 each time is constant, whereby it is possible to calculate the average height of the preset material when it is laid down on the first sieve tray 330, which is smaller than the height between the first sieve tray 330 and the crushing tray 326 in the initial state, in which the first sieve tray 330 is located at the lowermost surface of the first annular groove; the grinding compensation height h' is a fixed value, if the height between the first sieve tray 330 and the crushing tray 326 is adjusted to be equal to the average height of the tiled material, the grinding and crushing work between the crushing tray 326 and the first sieve tray 330 cannot be performed, therefore, the grinding compensation height needs to be set to meet the requirement that the adjusted height is lower than the average height of the tiled material to a certain extent, so as to ensure the normal operation of the grinding and crushing work, and as the grinding is performed, the particle size of the material is reduced, and at this time, the material with the particle size smaller than the grinding distance D cannot be in contact with the crushing tray 326 to be ground and crushed, therefore, the average height of the material is detected in real time by the detection device, the grinding distance between the first sieve tray 330 and the crushing tray 326 is calculated at any time by the above formula and steps, and the rotation angle calculated is used for controlling the rotation of the third gear 373 by the fifth driving part 372, in order to guarantee effectively to grind the breakage to the material, promote the intellectuality of first breaker 1, and improved the crushing efficiency of second breaker 3.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A method for recycling, processing and treating construction waste is characterized by comprising the following steps:

s100, carrying out primary sorting and recycling on the construction waste;

s200, conveying the preliminarily sorted construction waste to be crushed into a first crusher (1) for crushing, and carrying out secondary sorting on the crushed construction waste to obtain a recyclable ironware, muck (2) and construction waste to be further crushed;

s300, conveying the construction waste needing further crushing to a second crusher (3) for crushing, and sorting the crushed construction waste for three times to obtain recyclable ironware, finished aggregate (4) and light impurities (5).

2. The method for recycling and processing construction waste according to claim 1, wherein the light impurities (5) are disposed and recycled by a light material disposing machine (6).

3. The method for recycling, processing and treating construction waste according to claim 1, wherein the ironware is separated from the broken construction waste by a magnet.

4. The method for recycling, processing and treating construction waste according to claim 1, characterized in that the muck (2) and finished aggregate (4) are separated from the crushed construction waste by a vibrating screen (7).

5. The recycling processing and treating method of construction waste according to claim 1, wherein the second crusher (3) comprises a housing (310), a first-stage crushing mechanism (320) is arranged in the housing (310), a first sieve tray (330) is arranged below the first-stage crushing mechanism (320), a second conical sieve tray (340) is arranged below the first sieve tray (330), a cylinder (350) extends downwards from the center of the second sieve tray (340), a second-stage crushing mechanism (360) is arranged in the cylinder (350), and a driving mechanism (370) for driving the first sieve tray (330) and the second sieve tray (340) to move up and down is further arranged on the housing (310).

6. The method for recycling, processing and treating construction waste according to claim 5, the primary crushing mechanism (320) comprises a first driving part (321), the first driving part (321) is arranged above the shell (310), the output end of the first driving part (321) is in driving connection with a first rotating shaft (322) which is rotatably connected with the top of the shell (310), the bottom end of the first rotating shaft (322) extends into the interior of the housing (310), a sliding rod (323) which is vertical to the axis of the first rotating shaft (322) is arranged on the first rotating shaft (322), a sliding block (324) is arranged on the sliding rod (323) in a sliding manner, a second driving part is arranged on the sliding block (324), a second rotating shaft (325) is arranged on the sliding block (324) in a rotating way, the second driving part drives the second rotating shaft (325) to rotate, one end of the second rotating shaft (325) close to the first sieve tray (330) is provided with a crushing tray (326);

a sliding sleeve (327) is slidably sleeved on the outer side of the first rotating shaft (322), a driving disc is arranged on the outer side of the sliding sleeve (327), a threaded hole is formed in the driving disc, a rotating screw (328) is connected with the threaded hole in an internal thread manner, one end of the rotating screw (328) is rotatably connected with a fixing plate arranged on the first rotating shaft (322), the other end of the rotating screw (328) is connected with a third driving portion (329) arranged on the first rotating shaft (322), one side of the driving disc is hinged with a hinge rod (3210), and the other end of the hinge rod (3210) is hinged with the sliding block (324);

a plurality of first through holes are formed in the first sieve tray (330).

7. The method for recycling, processing and treating construction waste as claimed in claim 6, wherein a first gear (3211) is disposed at the top end of the second rotating shaft (325), and a toothed ring (311) engaged with the first gear (3211) is disposed on the inner sidewall of the housing (310).

8. The method for recycling, processing and treating construction waste as claimed in claim 6, wherein the crushing disc (326) is connected with the second rotating shaft (325) through a buffer device (8), the buffer device (8) comprises a connecting rod (810), one end of the connecting rod (810) is connected with the crushing disc (326), the other end of the connecting rod (810) is slidably connected in the second rotating shaft (325), two opposite sides of the connecting rod (810) are provided with arc-shaped recesses (811), one end of the arc-shaped recess (811) close to the crushing disc (326) is smoothly connected with a first arc-shaped protrusion (812), one end of the arc-shaped recess (811) far away from the crushing disc (326) is smoothly connected with a second arc-shaped protrusion (813), the arc-shaped recess (811), the first arc-shaped protrusion (812) and the second arc-shaped protrusion (813) form a wave-shaped limiting groove, the rolling connection has gyro wheel (820) in the wave spacing inslot, gyro wheel (820) rotate with connecting plate (830) through the pivot and are connected, the one end that connecting plate (830) kept away from gyro wheel (820) articulates in second axis of rotation (325), the one end that second axis of rotation (325) is close to crushing dish (326) is equipped with movable chamber (840), the top in movable chamber (840) be equipped with connecting plate (830) articulated hinge groove (850), the top in hinge groove (850) is equipped with the gliding sliding tray (860) of confession connecting rod (810) tip, gyro wheel (820) stretch out movable chamber (840) set up, one side that connecting rod (810) were kept away from in connecting plate (830) with be connected with first spring (870) between the lateral wall in movable chamber (840).

9. The recycling processing and processing method of construction waste according to claim 5, wherein the secondary crushing mechanism (360) comprises a fourth driving part (361), the fourth driving part (361) is disposed at the bottom of the housing (310), the output end of the fourth driving part (361) is connected with a driving shaft (362), one end of the driving shaft (362) far away from the fourth driving part (361) passes through the cylinder (350) and is rotatably connected with a connecting cylinder disposed at the bottom of the first sieve tray (330), the driving shaft (362) and the connecting cylinder can slide relatively, and a plurality of crushing knives (363) are disposed at the outer side of the driving shaft (362);

be equipped with a plurality of second through-holes on second sieve dish (340), the bottom surface of second sieve dish (340) is equipped with a plurality of electromagnetism iron strip (341), electromagnetism iron strip (341) set up a plurality of the interval department of second through-hole.

10. The recycling processing and treating method of construction waste as claimed in claim 5, wherein a mounting shell (380) is provided at one side of the housing (310), and the driving mechanism (370) is provided in the mounting shell (380);

the driving mechanism (370) comprises a second gear (371), the second gear (371) is connected with an output end of a fifth driving part (372), a third gear (373) is arranged on one side, close to the outer shell (310), of the second gear (371), a first driving rod (374) is arranged on one side, close to the outer shell (310), of the third gear (373), one end of the first driving rod (374) extends into the outer shell (310), the first driving rod (374) is arranged between the first sieve tray (330) and the second sieve tray (340), a second driving rod (375) is arranged on the bottom surface of the first sieve tray (330), and an end part of the second driving rod (375) is hinged with an end part, far away from the third gear (373), of the first driving rod (374);

the second gear (371) and the third gear (373) are both incomplete gears, the second gear (371) is relatively provided with a first tooth group (3711) and a second tooth group (3712), the third gear (373) is provided with a third tooth group (3731) and a fourth tooth group (3732), the number of teeth of the fourth tooth group (3732) is less than that of the third tooth group (3731), a baffle plate (381) is arranged at the bottom in the mounting shell (380), the baffle plate (381) abuts against the fourth tooth group (3732), and one side, away from the baffle plate (381), of the fourth tooth group (3732) is provided with the first driving rod (374);

a stop block is arranged on the side surface of the third gear (373), and a second spring (376) is connected between the stop block and the inner bottom surface of the mounting shell (380);

a first annular groove is formed in the inner side wall of the shell (310), the first sieve tray (330) is arranged in the first annular groove in a sliding mode, and a third spring (390) is arranged between the top surface of the first sieve tray (330) and the top surface of the first annular groove;

a second annular groove is formed in the inner side wall of the shell (310), the second sieve tray (340) is arranged in the second annular groove in a sliding mode through a sliding ring arranged in the circumferential direction of the second sieve tray, and a fourth spring (3100) is arranged between the bottom surface of the sliding ring and the bottom surface of the second annular groove;

the bottom surface of the first sieve tray (330) is connected with the top surface of the slip ring through an arc-shaped plate.