CN117861818A - Building rubbish recycling system - Google Patents

Abstract

The present invention relates to the field of construction slag recycling, and discloses a construction waste recycling system, including a crushing device, a conveying device, a screening device and a recycling device. Conveying devices for conveying construction waste are installed at both ends of the crushing device. The conveying device includes two groups of conveying chain plates arranged in a V shape and conveying support plates installed at the lower part of the two groups of conveying chain plates. A silo for collecting construction waste is provided on the conveying device at the head end. The screening device is installed below the crushing device, and the recycling device is installed at the rear section of the conveying device. The present invention can conveniently separate and collect construction waste by arranging a crushing device, a conveying device, a screening device and a recycling device, which can improve the recycling efficiency of construction waste on the one hand, and improve the utilization rate of shock-absorbing waste on the other hand, and reduce environmental pollution.

Description

A construction waste recycling system

Technical Field

The invention relates to the field of construction waste recycling, and in particular to a construction waste recycling system.

Background technique

Construction waste refers to the general term for slag, waste concrete, waste bricks and other waste gases generated by people in the production activities of the construction industry such as demolition, construction, decoration, and repair. The traditional methods of treating construction waste generally include filling pits and paving roads. However, the pit filling method has secondary pollution and serious ecological damage, and the construction material paving has the risk of collapse, which is very likely to cause safety hazards. For this reason, some people have proposed to recycle and reuse the main part of construction waste to reduce pollution and improve utilization. Construction waste is mainly composed of metals such as concrete, steel bars, and iron wire. If it is to be reused, it must first be separated, and then different types of construction waste must be applied in different places. The existing separation of construction waste is mainly separated by crushing. Such separation not only requires a lot of manpower for recycling, but also the separated raw materials need to be further processed to achieve recycling, resulting in low separation efficiency and greatly increasing investment costs.

Summary of the invention

The purpose of the present invention is to provide a construction waste recycling system, which can complete the recycling and reuse of construction waste in one go, not only shortening the processing efficiency, but also effectively improving the utilization efficiency of construction waste.

The objective of the present invention is achieved through the following technical solutions:

A construction waste recycling system comprises a crushing device, a conveying device, a screening device and a recovery device. Conveying devices for transporting construction waste are installed at both ends of the crushing device. The conveying device comprises two groups of conveying chain plates arranged in a V shape and conveying support plates installed at the lower parts of the two groups of conveying chain plates. A silo for collecting construction waste is provided on the conveying device at the head end. The screening device is installed below the crushing device, and the recovery device is installed at the rear section of the conveying device.

The crushing device includes a frame, a conveying roller, an air hammer, a jaw extruder, a sliding plate and a crusher. A row of conveying rollers is installed on the frame along the moving direction of the construction waste. A plurality of air hammers and jaw extruders for striking the construction waste are installed on the frame between adjacent conveying rollers. The sliding plate is obliquely installed on the frame below the conveying roller. The feed port of the crusher is connected to the lower end of the sliding plate. The discharge port of the crusher is connected to a screening device.

The top surfaces of the conveying rollers are successively lowered along the conveying direction of the construction waste, and a row of conveying rollers are arranged in an arc.

A strong magnet is mounted on the slide plate.

The screening device includes a separation bin and screens arranged in the separation bin from top to bottom. The screens are arranged obliquely, and the screen holes of the screens are reduced from top to bottom. The spacing between adjacent screens is greater than the aperture of the upper screen holes. The separation bin at the lower end of each layer of screens is provided with an outlet that is compatible with the spacing between adjacent screens.

A load-bearing frame supporting the screen is provided on the inner wall of the separation bin below the screen, and the load-bearing frame includes a support, a guide rod, an arch frame and a support spring. The support is fixed on the inner wall of the screen, and a guide rod perpendicular to the surface of the screen is installed on the support. The arch frame is made of spring steel, the middle part of the arch frame is connected to the middle part of the screen, and both ends of the arch frame are mounted on the guide rod, and the support spring is mounted on the guide rod below the arch frame.

The recovery device includes a material storage rack, a supporting plate and a cutting machine. The material storage rack is arranged at the end of the conveyor belt. A supporting plate for supporting the steel bars is installed above one end of the material storage rack. There are two supporting plates, which are symmetrically arranged along the conveying direction of the conveying device. Rotating arms connected to the supporting plates are installed on the inner walls on both sides of the material storage rack, and the supporting plates can be driven to move closer to or apart from each other through the rotating arms. The cutting machine can be installed horizontally movably on the upper part of the material storage rack close to the conveying device.

The bottom of the cutting machine is detachably mounted on the top of the material storage rack through a screw support seat, a motor for driving the cutting machine to reciprocate is mounted at one end of the screw support seat, a screw support seat is provided on one side of the screw support seat, the screw support seat is connected to the screw support seat through a gear set, and a fixed seat cooperating with the cutting machine is provided on the screw support seat.

The construction waste recycling system provided by the present invention has the following beneficial effects:

(1) By setting up crushing devices, conveying devices, screening devices and recycling devices, construction waste can be conveniently separated and collected, which can improve the recycling efficiency of construction waste on the one hand, and improve the utilization rate of shock-absorbing waste on the other hand, and reduce environmental pollution;

(2) By setting up a crushing device and cooperating with a conveying device, the construction slag and steel bars in the construction waste can be separated. At the same time, the long steel bars can be easily guided out by conveying rollers arranged in an arc shape, so as to achieve the separation between different construction wastes;

(3) The crusher can crush raw materials of different hardness into raw materials of different particle sizes. At the same time, the screening device can separate raw materials of different coarseness and fineness so that they can be used in corresponding applications;

(4) By setting up a recycling device, the separated steel bars and other precious metal construction waste can be packaged separately, and the steel bars can be cut into regular small pieces by using a cutting machine for easy transportation.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention.

FIG. 2 is a schematic diagram of the structure of a crushing device provided in an embodiment of the present invention.

FIG. 3 is a schematic diagram of the structure of a conveying device provided in an embodiment of the present invention.

FIG. 4 is a schematic diagram of the structure of a screening device provided in an embodiment of the present invention.

FIG. 5 is a cross-sectional view taken along line A-A in FIG. 4 .

FIG. 6 is a schematic diagram of the structure of a recovery device provided in an embodiment of the present invention.

Figure numerals: 1. Crushing device; 11. Frame; 12. Conveying roller; 13. Air hammer; 14. Jaw extruder; 15. Sliding plate; 16. Crusher; 17. Strong magnet; 2. Conveying device; 21. Conveying chain plate; 22. Conveying support plate; 23. Bin; 3. Screening device; 31. Separation bin; 32. Screen; 33. Exit; 34. Load-bearing frame; 35. Support; 36. Guide rod; 37. Arch frame; 38. Support spring; 4. Recovery device; 41. Storage rack; 42. Support plate; 43. Cutting machine; 44. Rotating arm; 45. Screw support seat; 46. Screw support seat; 47. Motor; 48. Gear set; 49. Fixed seat.

Detailed ways

Example

As shown in Figures 1 to 6, the construction waste recycling system provided in this embodiment includes a crushing device 1, a conveying device 2, a screening device 3 and a recovery device 4. Conveying devices 2 for conveying construction waste are installed at both ends of the crushing device 1. The conveying device 2 is used to convey construction waste. In order to facilitate the transmission of construction waste, the conveying device 2 includes two groups of V-shaped conveying chain plates 21 and conveying pallets 22 installed at the lower part of the two groups of conveying chain plates 21. The two groups of conveying chain plates 21 and the conveying pallets 22 rotate in the same direction and at the same speed to convey construction waste. The V-shaped conveying chain plates 21 can disperse the gravity of construction waste and gather construction waste. The conveying pallet 22 is used to transfer fine construction waste to the crushing device 1. A silo 23 for collecting construction waste is provided on the conveying device 2 at the head end. The silo 23 is used to facilitate engineering machinery to pour construction waste into it. The screening device 3 is installed below the crushing device 1, and the recovery device 4 is installed at the rear section of the conveying device 2.

In order to conveniently crush the construction waste, as shown in Figures 1 and 2, so that it can be reused, the crushing device 1 includes a frame 11, a conveying roller 12, an air hammer 13, a jaw extruder 14, a sliding plate 15 and a crusher 16. A row of conveying rollers 12 are installed on the frame 11 along the moving direction of the construction waste. A plurality of air hammers 13 and jaw extruders 14 for striking the construction waste are installed on the frame 11 between adjacent conveying rollers 12. The air hammer 13 and the jaw crusher 16 process the construction waste into small pieces of building materials during the conveying process, so that it can easily pass through the gap between the conveying rollers 12 and fall on the sliding plate 15. The air hammer 13 is used to crush the construction waste. The building materials with lower strength on the outside of the construction waste are hammered and scattered, and the jaw extruder 14 is used to crush the harder building materials. Through staggered operation, the large volume of construction waste can be broken into small volume of construction waste that can be recycled. At the same time, the waste steel bars and iron wires in the construction waste are sent to the recycling device 4 by the conveying roller 12. The sliding plate 15 is obliquely installed on the frame 11 below the conveying roller 12. The feed port of the crusher 16 is connected to the lower end of the sliding plate 15. In order to prevent the waste steel bars and iron wires from entering the crusher 16, a strong magnet 17 is installed on the sliding plate 15. The strong magnet 17 is used to absorb metal building materials such as steel bars and iron wires. The discharge port of the crusher 16 is connected with a screening device 3.

In order to facilitate the conveying of scrap steel bars and iron wires, as shown in Figures 1 and 2, the top surfaces of the conveying rollers 12 are successively lowered along the conveying direction of the construction waste, and a row of conveying rollers 12 are arranged in an arc, so that the severely curved conveying rollers 12 of the scrap steel bars and iron wires cleaned by the air hammer 13 and the jaw extruder 14 are sent out of the crushing device 1 without getting stuck on the conveying rollers 12 and affecting the transportation of the construction waste.

In order to classify the construction waste crushed by the crusher 16, as shown in Figure 4, the screening device 3 includes a separation bin 31 and screens 32 arranged in the separation bin 31 from top to bottom. The screens 32 are arranged at an angle, and the screen holes of the screens 32 are reduced from top to bottom. The spacing between adjacent screens 32 is greater than the aperture of the upper screen holes. The separation bin 31 at the lower end of each layer of screens 32 is provided with an outlet 33 adapted to the spacing between adjacent screens 32. The construction waste crushed by the crusher 16 falls on the uppermost screen 32, and the construction waste of corresponding sizes passes through the corresponding screen 32 and is transmitted out of the separation bin 31 from the corresponding outlet 33.

In order to ensure the service life of the screen 32, as shown in Figure 5, a load-bearing frame 34 supporting the screen 32 is provided on the inner wall of the separation bin 31 below the screen 32, and the load-bearing frame 34 includes a support 35, a guide rod 36, an arch frame 37 and a support spring 38. The support 35 is fixed on the inner wall of the screen 32, and a guide rod 36 perpendicular to the surface of the screen 32 is installed on the support 35. The arch frame 37 is made of spring steel, and the middle part of the arch frame 37 is connected to the middle part of the screen 32. Both ends of the arch frame 37 are mounted on the guide rod 36. The structural strength of the screen 32 can be improved by the arch frame 37. The support spring 38 is mounted on the guide rod 36 below the arch frame 37. Under the action of the support spring 38, when a large amount of construction waste falls on the screen 32, the spring can improve the screening efficiency of the screen 32 for the construction waste by contraction and release, and at the same time, it can also reduce the impact force on the screen 32.

In order to facilitate the recycling of construction waste, as shown in Figure 6, the recycling device 4 includes a storage rack 41, a supporting plate 42 and a cutter 43. The storage rack 41 is arranged at the end of the conveyor belt. A supporting plate 42 for supporting the steel bars is installed above one end of the storage rack 41. There are two supporting plates 42, which are symmetrically arranged along the conveying direction of the conveying device 2. Rotating arms 44 connected to the supporting plates 42 are installed on the inner walls on both sides of the storage rack 41. The supporting plates 42 can be driven to move closer to or apart from each other through the rotating arms 44. The cutter 43 can be horizontally movably installed on the upper part of the storage rack 41 close to the conveying device 2. In order to facilitate cutting of steel wire, the bottom of the cutting machine 43 is detachably mounted on the top of the storage rack 41 through a screw support seat 45, and a motor 47 for driving the cutting machine 43 to reciprocate is mounted at one end of the screw support seat 45, and a screw support seat 46 is provided on one side of the screw support seat 45. The screw support seat 45 and the screw support seat 46 are connected through a gear set 48, and a fixed seat 49 cooperating with the cutting machine 43 is provided on the screw support seat 46. The fixed seat 49 is used to cooperate with the cutting machine 43 to limit the steel wire so that it can be conveniently cut into small sections.

The method of using the present invention is:

When in use, the engineering vehicle pours the construction waste into the silo 23 on the conveying device 2, and under the action of the conveying chain plate 21 and the conveying support plate 22, the construction waste is sent to the crushing device 1. After the construction waste enters the crushing device 1, it is fed by the conveying roller 12. At this time, the air hammer 13 and the jaw extruder 14 perform fine crushing on the construction waste to separate the steel bars from the concrete. The separated fine construction waste falls from the conveying roller 12 onto the sliding plate 15, and the separated steel bars are conveyed by the conveying roller 12 toward the recycling device 4. The construction waste that falls on the sliding plate 15 flows along the sliding plate 15 to the crusher 16. In this process, the strong magnet 17 attracts the fallen iron wire and steel bars. The construction waste crushed by the crusher 16 is screened out according to different particle sizes through the screening device 3 for subsequent engineering reuse. Then the conveying device 2 sends the steel wire to the recovery shaft. At this time, the rotating arm 44 drives the supporting plate 42 to rise to support the steel wire. At the same time, the motor 47 drives the screw support seat 45 to move, and the cutting machine 43 cuts horizontally on the storage rack 41 to cut the steel bars. During the cutting process of the cutting machine 43, the gear set 48 drives the fixed seat 49 on the screw support seat 46 to move toward the cutting machine 43 to fix the steel bars. After the steel bars are cut, the rotating arm 44 rotates downward to send the steel bars on the supporting plate 42 into the storage rack 41.

The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be included in the protection scope of the present invention. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitation of the present invention.

Claims (8)

1. A construction waste recycling system, characterized in that: including breaker (1), conveyer (2), screening plant (3) and recovery unit (4), conveyer (2) of carrying building rubbish are installed at the both ends of breaker (1), conveyer (2) are including two sets of conveying link joint (21) that are V type setting and install conveying layer board (22) in two sets of conveying link joint (21) lower part, are equipped with on conveyer (2) that are located the head end and collect building rubbish feed bin (23), screening plant (3) are installed in breaker (1) below, recovery unit (4) are installed in conveyer (2) rear section.

2. The construction waste recycling system according to claim 1, wherein: the crushing device (1) comprises a frame (11), conveying rollers (12), air hammers (13), jaw extruders (14), a sliding plate (15) and a crusher (16), wherein a row of conveying rollers (12) are arranged on the frame (11) along the moving direction of construction waste, a plurality of air hammers (13) and jaw extruders (14) for knocking the construction waste are arranged on the frame (11) between adjacent conveying rollers (12), the sliding plate (15) is obliquely arranged on the frame (11) below the conveying rollers (12), a feeding port of the crusher (16) is connected with the lower end of the sliding plate (15), and a screening device (3) is connected to a discharging port of the crusher (16).

3. The construction waste recycling system according to claim 2, wherein: the top surfaces of the conveying rollers (12) are sequentially lowered along the conveying direction of the construction waste, and a row of conveying rollers (12) are arranged in an arc line.

4. The construction waste recycling system according to claim 2, wherein: and a strong magnet (17) is arranged on the sliding plate (15).

5. The construction waste recycling system according to claim 2, wherein: screening plant (3) are including separating storehouse (31) and from last screen cloth (32) that down set gradually in separating storehouse (31), screen cloth (32) slope sets up, and the sieve mesh of screen cloth (32) reduces from last down in proper order, and interval between adjacent screen cloth (32) is greater than the aperture that is the sieve mesh in the top, all is equipped with on separating storehouse (31) of the lower one end of every layer of screen cloth (32) with export (33) of adjacent screen cloth (32) interval looks adaptation.

6. The construction waste recycling system according to claim 5, wherein: the utility model discloses a separation storehouse, including screen cloth (32), separation storehouse (31) are equipped with bearing frame (34) of support screen cloth (32) on the inner wall of screen cloth (32) below, bearing frame (34) are including support (35), guide arm (36), bow member (37) and supporting spring (38), support (35) are fixed on screen cloth (32) inner wall, install on support (35) with screen cloth (32) surface vertically guide arm (36), bow member (37) are made by spring steel, bow member (37) middle part and screen cloth (32) middle part are connected, bow member (37) both ends suit is on guide arm (36), supporting spring (38) suit is on guide arm (36) of bow member (37) below.

7. The construction waste recycling system according to claim 5, wherein: recovery unit (4) are including stock frame (41), hold in the palm flitch (42) and cutting machine (43), stock frame (41) set up at the conveyer belt end, stock frame (41) one end top is installed holds in the palm flitch (42) of holding up the reinforcing bar, holds in the palm flitch (42) and has two, and along the direction of transfer symmetry setting of conveyer (2), install on the inner wall of stock frame (41) both sides with hold in the palm flitch (42) be connected swinging boom (44), can drive through swinging boom (44) and hold in the palm flitch (42) and draw in or separate each other, but cutting machine (43) horizontal migration installs in stock frame (41) upper portion that is close to conveyer (2).

8. The construction waste recycling system according to claim 7, wherein: the utility model discloses a cutting machine, including work or material rest (41) including cutting machine, screw rod supporting seat (45) detachably installs at work or material rest (41) top through screw rod supporting seat (45), and motor (47) that drive cutting machine (43) reciprocating motion are installed to screw rod supporting seat (45) one end, and screw rod supporting seat (45) one side is equipped with screw rod supporting seat (46), screw rod supporting seat (45) are connected through gear train (48) with screw rod supporting seat (46), be equipped with on screw rod supporting seat (46) with cutting machine (43) complex fixing base (49).