Construction waste recycling and separating equipment

Abstract

The utility model provides construction waste recycling and separating equipment, and relates to the field of construction waste treatment. The construction waste recycling and separating equipment comprises a shell, a feeding hopper and supporting legs, the feeding hopper and the supporting legs are installed on the shell, a screening area, a temporary storage area and a discharging area which are sequentially communicated are arranged in the shell, rotating discs used for rotating are installed in the screening area and the discharging area correspondingly, and one side face of one rotating disc is fixedly connected with an annular screening plate; according to the construction waste recycling and separating equipment, the workload during screening can be reduced, the probability of blockage is reduced, the screening efficiency is improved, by arranging an annular plate and a notch in the annular plate, when the annular plate rotates, the notch can intermittently supply and discharge materials, and when a sealing face of the annular plate moves to the position corresponding to a temporary storage area, the sealing face can not be blocked. And the annular plate seals the temporary storage area, so that the retention time of the aggregate in the temporary storage area is prolonged, and the aggregate in the temporary storage area can have sufficient time to be separated from solid dust particles.

Description

Technical Field

[0001] This utility model relates to the field of construction waste treatment, specifically a construction waste recycling and separation device. Background Technology

[0002] Construction waste management refers to the process of collecting, transporting, processing, and reusing (or properly disposing of) slag, waste concrete, waste bricks, and other waste generated by construction and demolition units during the construction, demolition, and repair of various buildings, structures, and pipelines. At demolition sites, construction companies use loaders and other equipment to centrally pile construction waste at designated locations to prevent it from scattering and polluting the surrounding environment. Then, specialized construction waste transport vehicles are used to transport it to processing sites. These vehicles are typically well-sealed to prevent spillage during transport and reduce secondary pollution to the road environment. A large amount of waste concrete in construction waste can be recycled. Concrete processing involves the effective recycling and reprocessing of this waste concrete. Specialized recycling devices break large pieces of waste concrete into particles of different sizes for recycling.

[0003] Currently, when recycling concrete from construction waste, traditional equipment first uses jaw crushers and cone crushers for crushing. However, the particle size of the concrete raw material crushed by the crusher may be larger than the required standard particle size. This not only easily causes blockage at the discharge port, but also increases the workload during screening and reduces screening efficiency.

[0004] In view of the above situation, this utility model is hereby proposed! Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a construction waste recycling and separation device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a construction waste recycling and separation device, including a shell and a feeding hopper and support legs installed on the shell. The shell is provided with a screening area, a temporary storage area and a discharge area connected in sequence. The screening area and the discharge area are each equipped with a rotating turntable. One side of one turntable is fixedly connected to an annular screening plate. The screen holes in the screening plate are used to discharge fine aggregates in concrete. The other turntable is fixedly connected to an annular plate. The interior of the annular plate is provided with notches for feeding or discharging.

[0007] An airflow separation device is installed on the outer shell to separate solid dust from the surface of fine aggregate in the temporary storage area. Two arc-shaped plates are rotatably installed inside the outer shell. A power unit is fixedly connected to one side of the outer shell. The power unit drives the two arc-shaped plates to crush concrete aggregate through a transmission mechanism. Inclined slots are provided on the outer arc surface of the arc-shaped plates.

[0008] Preferably, there are two feed hoppers, and the two feed hoppers are arranged symmetrically.

[0009] Preferably, a rotating shaft is fixedly connected to one side of each of the two turntables, and a synchronous pulley is fixedly connected to the outer surface of each of the two rotating shafts. The two synchronous pulleys are connected by a belt drive, and one end of one of the rotating shafts is connected to an external motor.

[0010] Preferably, one side of the arc-shaped plate contacts the turntable, and the other side has a gap between it and the outer shell.

[0011] Preferably, the airflow separation device includes a blower, an air inlet pipe, an air outlet pipe, and a filter screen. The blower is fixed to the outer casing by a frame. One end of the air inlet pipe is connected to the blower, and the other end is connected to the temporary storage area. The temporary storage area is provided with a ventilation opening. The filter screen is fixedly installed in the ventilation opening, and the exhaust pipe is connected to the ventilation opening.

[0012] Preferably, the transmission mechanism includes a bracket, a transmission plate, a lifting plate, and a transmission shaft. The bracket is fixedly connected to the arc-shaped plate, the transmission plate is rotatably connected to the bracket via a rotating shaft, and the transmission plate is rotatably connected to the lifting plate via a rotating shaft. One end of the transmission shaft is rotatably installed inside the lifting plate, and a sliding groove is provided inside the outer casing, with one end of the transmission shaft sliding in the sliding groove.

[0013] Preferably, a sealing plate is fixedly connected to one end of the drive shaft, and the sealing plate is in contact with the outer casing.

[0014] Preferably, the power unit includes a hydraulic cylinder, a push-pull rod, and a fixing block. The hydraulic rod is fixedly installed on one side of the housing. The output end of the hydraulic rod is fixedly connected to one end of the push-pull rod, and the other end of the push-pull rod is fixedly connected to the fixing block. The fixing block is fixedly connected to the drive shaft.

[0015] Compared with the prior art, this utility model has the following beneficial effects: the screening plate can crush the aggregate of concrete. When there are large-sized aggregates remaining at the bottom of the screening plate, these aggregates will return to the arc plate as the screening plate rotates and continue to be crushed, thereby obtaining smaller-sized aggregates. This can reduce the workload during screening, reduce the probability of clogging, and improve screening efficiency. Moreover, since the arc plate is provided with an inclined slot, some fine aggregates will be smoothly discharged from the gap between the arc plate and the outer shell through the inclined slot, further improving the discharge efficiency of fine aggregates. By setting an annular plate and its internal notch, when the annular plate rotates, the notch can intermittently supply and discharge materials. When its sealing surface moves to the position corresponding to the temporary storage area, the annular plate seals the temporary storage area, increasing the residence time of the aggregates in the temporary storage area, so that the aggregates in the temporary storage area can have sufficient time to separate from solid dust particles. Attached Figure Description

[0016] Figure 1 This is a front view of the outer casing of this utility model;

[0017] Figure 2 This is a rear view of the outer casing of this utility model;

[0018] Figure 3 This is a sectional view of the front view of the outer casing of this utility model;

[0019] Figure 4 This is a schematic diagram of the arc-shaped plate and transmission mechanism of this utility model;

[0020] Figure 5 This is a sectional view of the side view of the outer shell of this utility model.

[0021] The components are as follows: 1. Outer shell; 101. Screening area; 102. Temporary storage area; 103. Discharge area; 2. Feed hopper; 3. Turntable; 4. Screening plate; 5. Annular plate; 6. Notch; 7. Airflow separation device; 701. Blower; 702. Air inlet pipe; 703. Air outlet pipe; 704. Filter screen; 8. Arc plate; 9. Hydraulic cylinder; 10. Transmission mechanism; 1001. Support; 1002. Transmission plate; 1003. Lifting plate; 1004. Transmission shaft; 11. Groove; 12. Rotating shaft; 13. Synchronous pulley; 14. Slide groove; 15. Sealing plate. Detailed Implementation

[0022] like Figures 1-5As shown, a construction waste recycling and separation device includes a shell 1, a feeding hopper 2 and support legs mounted on the shell 1. There are two feeding hoppers 2, symmetrically arranged, which respectively feed concrete aggregate to two crushing plates. The shell 1 contains a screening area 101, a temporary storage area 102, and a discharge area 103 connected in sequence. Rotary discs 3 are installed inside both the screening area 101 and the discharge area 103. A rotating shaft 12 is fixedly connected to one side of each of the two rotating discs 3. Synchronous pulleys 13 are fixedly connected to the outer surfaces of both rotating shafts 12. The two synchronous pulleys 13 are connected by a belt drive. One end of one rotating shaft 12 is connected to an external motor, and one side of one rotating disc 3 is fixedly connected to... The annular screening plate 4 has sieve holes for discharging fine aggregates from the concrete. Another turntable 3 has an annular plate 5 fixedly connected to one side. The annular plate 5 has a notch 6 inside for feeding or discharging. The bottom of the outer shell 1 has a discharge port. When the notch 6 rotates to the position corresponding to the temporary storage area 102, the aggregate in the temporary storage area 102 enters the annular plate 5. When the notch 6 rotates to the position corresponding to the discharge port, the aggregate can be discharged. When the sealing surface of the annular plate 5 rotates to the position corresponding to the temporary storage area 102, it can block the temporary storage area 102, so that the aggregate is temporarily stored in the temporary storage area 102 and the residence time of the aggregate in the temporary storage area 102 is increased, which is beneficial for the airflow separation device 7 to fully remove solid dust from the surface of the fine aggregate.

[0023] An airflow separation device 7 for separating solid dust from the surface of fine aggregates in the temporary storage area 102 is installed on the outer casing 1. The airflow separation device 7 includes a blower 701, an inlet pipe 702, an exhaust pipe 703, and a filter screen 704. The blower 701 is fixed to the outer casing 1 by a frame. One end of the inlet pipe 702 is connected to the blower 701, and the other end is connected to the temporary storage area 102. The temporary storage area 102 has a ventilation opening. The filter screen 704 is fixedly installed in the ventilation opening. The exhaust pipe 703 is connected to the ventilation opening. The filter screen 704 is used to prevent aggregates from being discharged. By starting the blower 701, impurities on the surface of the aggregate in the temporary storage area 102 can be removed through the airflow generated by the blower 701. Two arc-shaped plates 8 are rotatably mounted inside the outer casing 1. The two arc-shaped plates 8 are symmetrically arranged, with one side of each arc-shaped plate 8 contacting the turntable 3 and a gap between the other side and the outer casing 1 for discharging fine aggregate. A power unit is fixedly connected to one side of the outer casing 1. The power unit drives the two arc-shaped plates 8 to crush the concrete aggregate through a transmission mechanism 10. The transmission mechanism 10 includes a support 1001 and a transmission plate. 1002, lifting plate 1003, and drive shaft 1004; bracket 1001 is fixedly connected to arc plate 8; drive plate 1002 is rotatably connected to bracket 1001 via a rotating shaft; drive plate 1002 is rotatably connected to lifting plate 1003 via a rotating shaft; one end of drive shaft 1004 is rotatably installed inside lifting plate 1003; a sliding groove 14 is provided inside the outer casing 1; one end of drive shaft 1004 slides in the sliding groove 14; a sealing plate 15 is fixedly connected to one end of drive shaft 1004; the sealing plate 15 contacts the outer casing 1; the sealing plate... 15 is used to block the chute 14 to prevent dust in the screening section 101 from being discharged from the chute 14 and causing environmental pollution. The power unit includes a hydraulic cylinder 9, a push-pull rod and a fixing block. The hydraulic rod is fixedly installed on one side of the housing 1. The output end of the hydraulic rod is fixedly connected to one end of the push-pull rod, and the other end of the push-pull rod is fixedly connected to the fixing block. The fixing block is fixedly connected to the transmission shaft 1004. The hydraulic rod can control the lifting and lowering of the transmission shaft 1004, thereby enabling the two arc plates 8 to start working. The outer arc surface of the arc plate 8 is provided with an inclined slot 11.

[0024] In operation, the crushed concrete aggregate is first fed into two feed hoppers 2, falling onto two arc-shaped plates 8. Then, the hydraulic cylinder 9 is activated, driving the push-pull rod to repeatedly rise and fall. The push-pull rod drives the fixed block to rise and fall, which in turn drives the transmission shaft 1004 to rise and fall. The transmission shaft 1004 drives the lifting plate 1003 to rise and fall. The lifting plate 1003, through the transmission plate 1002, drives the support 1001 to swing, causing the two arc-shaped plates 8 to swing repeatedly. During this repeated swinging, the concrete aggregate is squeezed against the screening plate 4, crushing larger aggregate particles. The crushed aggregate falls to the bottom of the screening plate 4 and detaches from the sieve holes into the temporary storage area 102. Then, an external motor drives one of the plates... When the rotating shaft 12 rotates, since the two synchronous pulleys 13 are directly connected by belt drive, when one of the rotating shafts 12 rotates, the two rotating shafts 12 can rotate synchronously through the synchronous pulleys 13, thereby driving the two turntables 3 to rotate. One of the turntables 3 drives the screening plate 4 to rotate. When there are large-diameter aggregates remaining at the bottom of the screening plate 4, these aggregates will return to the arc plate 8 as the screening plate 4 rotates and continue to be crushed, thereby obtaining smaller-diameter aggregates. This can reduce the workload during screening, reduce the probability of clogging, and improve screening efficiency. Moreover, since the arc plate 8 is provided with an inclined slot 11, some fine aggregates will be smoothly discharged from the gap between the arc plate 8 and the outer shell 1 through the inclined slot 11, further improving the discharge efficiency of fine aggregates.

[0025] Next, the fine aggregate falls from the sieve holes of the screening plate 4 into the temporary storage area 102. By starting the blower 701, airflow is delivered into the temporary storage area 102 through the air inlet pipe 702. The airflow removes impurities such as solid dust particles from the surface of the aggregate in the temporary storage area 102, separating the solid dust particles from the aggregate surface. The separated solid dust particles are discharged through the exhaust pipe 703. The exhaust pipe 703 can be installed in an external dust collection box to discharge the solid dust particles into the collection box. When the other turntable 3 rotates, it drives the annular plate 5 to rotate. When the sealing surface of the annular plate 5 moves to the position corresponding to the temporary storage area 102, the annular plate... Plate 5 seals the temporary storage area 102 to prevent aggregate from falling out, which helps to increase the time the aggregate is in the temporary storage area 102, allowing sufficient time for the aggregate in the temporary storage area 102 to separate from solid dust particles. When the notch 6 of the annular plate 5 rotates to the position corresponding to the temporary storage area 102, the aggregate in the temporary storage area 102 enters the annular plate 5. When the notch 6 rotates to the position corresponding to the discharge port of the outer shell 1, the aggregate can be discharged from the discharge port of the outer shell 1, achieving the purpose of intermittent discharge, which is conducive to the full separation of solid dust particles. Finally, the separated fine aggregate can be collected through an external container. The fine aggregate can be recycled and reused, improving the utilization rate.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction waste recycling and separating device, comprising a shell (1), a feeding hopper (2) and supporting legs installed on the shell (1), characterized in that: The shell (1) is internally provided with a screening zone (101), a temporary storage zone (102) and a discharge zone (103) which are sequentially communicated, the screening zone (101) and the discharge zone (103) are internally provided with rotary turntables (3) for rotation, one side surface of one of the turntables (3) is fixedly connected with an annular screening plate (4), the screening holes in the screening plate (4) are used for discharging fine aggregates in the concrete, one side surface of the other turntable (3) is fixedly connected with an annular plate (5), the annular plate (5) is internally provided with notches (6) for feeding or discharging. The shell (1) is provided with an airflow separation device (7) for separating the surface solid dust of the fine aggregates in the temporary storage zone (102), the shell (1) is internally rotatably provided with two arc-shaped plates (8), one side surface of the shell (1) is fixedly connected with a power device, the power device drives the two arc-shaped plates (8) to crush the concrete aggregates through a transmission mechanism (10), the arc-shaped plates (8) are provided with inclined notches (11) at the arc surfaces of the outer sides.

2. The construction waste recycling and separating device according to claim 1, characterized in that: The number of the feeding hoppers (2) is two, and the two feeding hoppers (2) are symmetrically arranged.

3. The construction waste recycling and separating device according to claim 1, characterized in that: One side surface of each of the two turntables (3) is fixedly connected with a rotating shaft (12), the outer surfaces of the two rotating shafts (12) are fixedly connected with synchronous wheels (13), the two synchronous wheels (13) are connected through a belt transmission, and one end of one of the rotating shafts (12) is connected with an external motor.

4. The construction waste recycling and separating device according to claim 1, characterized in that: One side surface of the arc-shaped plate (8) is in contact with the turntable (3), and a gap is left between the other side surface and the shell (1).

5. The construction waste recycling and separating device according to claim 1, characterized in that: The airflow separation device (7) comprises a blower (701), an air inlet pipe (702), an air outlet pipe (703) and a filter screen (704), the blower (701) is fixed to the shell (1) through a frame, one end of the air inlet pipe (702) is connected with the blower (701), the other end is communicated with the temporary storage zone (102), the temporary storage zone (102) is internally provided with a ventilation opening, the filter screen (704) is fixedly installed in the ventilation opening, and the air outlet pipe (703) is communicated with the ventilation opening.

6. The construction waste recycling and separating device according to claim 1, characterized in that: The transmission mechanism (10) comprises a support (1001), a transmission plate (1002), a lifting plate (1003) and a transmission shaft (1004), the support (1001) is fixedly connected with the arc-shaped plate (8), the transmission plate (1002) is rotatably connected with the support (1001) through a rotating shaft, the transmission plate (1002) is rotatably connected with the lifting plate (1003) through a rotating shaft, one end of the transmission shaft (1004) is rotatably installed in the lifting plate (1003), the shell (1) is internally provided with a sliding groove (14), and one end of the transmission shaft (1004) is slidably connected with the sliding groove (14).

7. The construction waste recycling and separating apparatus according to claim 6, characterized in that: One end of the transmission shaft (1004) is fixedly connected with a sealing plate (15), and the sealing plate (15) is in contact with the shell (1).

8. The construction waste recycling and separating device according to claim 6, characterized in that: The power device comprises a hydraulic cylinder (9), a push-pull rod and a fixed block, the hydraulic cylinder is fixedly installed at one side surface of the shell (1), the output end of the hydraulic cylinder is fixedly connected with one end of the push-pull rod, the other end of the push-pull rod is fixedly connected with the fixed block, and the fixed block is fixedly connected with the transmission shaft (1004).

Images