CN218690357U - Concrete recycled aggregate crushing and screening equipment - Google Patents

Abstract

The utility model relates to the technical field of concrete treatment, in particular to crushing and screening equipment for recycled concrete aggregates, including a sieving box, and a crushing mechanism is connected to the upper side of the sieving box, which is used for crushing the construction waste put into the sieving box, and sorting A sieve bucket is installed inside the sieve box to sieve the crushed construction waste. The bottom end of the sieve bucket is rotatably connected to a feed pipe. One end of the feed pipe extends to the outside of the sieve box, and the feed pipe runs through There is a connecting rod for sliding, a sealing cap is fixedly connected to the connecting rod, and an electric cylinder is fixedly connected to one end of the connecting rod, and the electric cylinder is used to drive the sealing cap to slide relative to the material guide tube to switch the open or closed state of the material guide tube to avoid staff Manual cleaning of materials that cannot be screened on the sieve bucket reduces labor intensity. Construction waste can be quickly discharged through two material guide pipes, saving cleaning time, improving the efficiency of construction waste screening, and improving its practicability. .

Description

Concrete recycled aggregate crushing and screening equipment

technical field

The utility model relates to the technical field of concrete treatment, in particular to crushing and screening equipment for recycled concrete aggregates.

Background technique

As we all know, recycled concrete aggregates are processed from construction waste, and recycled concrete aggregates can effectively reduce land occupation and environmental pollution caused by construction waste. Steel bars and iron wires are removed, and then the construction waste is crushed by a pulverizer, and then the construction aggregate is screened to obtain concrete recycled aggregate that meets the requirements.

After searching, the existing patent technology CN216630974U discloses a kind of whole construction waste recycled coarse and fine aggregate concrete. During the processing process, the construction waste needs to be crushed and screened. The construction waste is crushed by a crushing mechanism, and a two-layer screening mechanism is used. Realize double-layer screening, although it can realize the combination of crushing and screening, but the construction waste that cannot be screened on the two screening mechanisms is not easy to discharge, and the staff need to clean it manually, which makes the cleaning process cumbersome and heavy workload, reducing The efficiency of screening construction waste is reduced, and the practicability of its use is reduced. There is above-mentioned problem in patent technology CN214320283U equally.

In the existing patent solution CN214916764U, a discharge hopper is arranged on the bottom side of the inclined screen plate, so that the unscreened material is discharged from the discharge hopper, but because the screen plate is arranged in an inclined structure, the material is easily discharged during the screening process. Sliding to one side of the discharge hopper, so that the material is discharged from the discharge hopper without being completely screened, and the productivity of the concrete recycled aggregate is low. In CN214515108U, the arc-shaped screening plate is used, and the productivity is also low. The problem.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the utility model provides crushing and screening equipment for recycled concrete aggregates to solve the problems raised in the above-mentioned background technology.

(2) Technical solution

In order to achieve the above purpose, the utility model provides the following technical solutions: crushing and screening equipment for recycled concrete aggregates, including a sieving box, and a crushing mechanism is connected to the upper side of the sieving box for crushing and putting into the sieving box For construction waste, at least one sieve bucket is installed inside the sieve box to sieve the crushed construction waste. The bottom end of the sieve bucket is rotatably connected to a guide tube, and one end of the guide tube extends to the outside of the sieve box. , there is a connecting rod that slides through the feeding tube, at least one sealing cap is fixedly connected to the connecting rod, and an electric cylinder is fixedly connected to one end of the connecting rod, and the electric cylinder is used to drive the sealing cap (10) to slide relative to the feeding tube to switch The open or closed state of the feed tube.

Preferably, the inside of the sub-screening box is provided with two ring grooves, the inner seals of the two ring grooves are connected with swivel rings, the insides of the two swivel rings are fixedly connected with screen buckets, and the outside of the two swivel rings are fixed sleeves. A gear ring is provided, and one end of the screening box is provided with two through slots, and the two through slots are respectively connected with two ring slots, and one end of the screening box is fixedly connected with two first motors, and the output ends of the two first motors are connected to each other. Gears are fixedly connected, and the two gears mesh with the two gear rings respectively.

Preferably, the crushing mechanism includes two crushing rollers, both of which are rotatably connected to the inner side wall of the sieving box, and the two crushing rollers are connected by transmission, one end of the sieving box is fixedly connected to a second motor, and the second The output end of the second motor is fixedly connected with one end of one of the pulverizing rollers.

Further, a guide hopper is fixedly connected to the inside of the screening box, and the guide hopper is located on the upper side of the first sieve hopper.

In a further solution, a collection box is placed on the inner bottom side of the sieve box and below the two material guide pipes.

On the basis of the foregoing scheme, one side of the screening box is detachably connected with a circulation conveying box, and an auger is arranged inside the circulation conveying box, and an adjustable opening is provided on the circulation conveying box, and the passage Matching with the position of the material guiding pipe, the upper end of the circulation conveying box communicates with the inside of the screening box.

(3) Beneficial effects

Compared with the prior art, the utility model provides crushing and screening equipment for concrete recycled aggregate, which has the following beneficial effects:

1. Screen the crushed construction waste through the first sieve bucket and the second sieve bucket, and drive the two sieve buckets to rotate, so that the construction waste can roll on the first sieve bucket and the second sieve bucket, which is convenient for Rapid screening of construction waste;

2. When it is necessary to clean up the construction waste on the upper side of the screen bucket, the electric cylinder pushes the connecting rod and the two sealing caps to move upward, so that the two sealing caps are separated from the two material guide pipes, and the construction waste on the screen bucket passes through The material guide tube is discharged, and the movement of the electric cylinder is used to dredge the material guide tube to avoid the blockage of the material guide tube and affect the discharge, effectively reducing the labor intensity of the staff, and the construction waste can be quickly discharged through the two material guide tubes, saving cleaning time Time, improve the efficiency of construction waste screening, and improve the practicability of its use.

3. Use the circulation conveying box to convey the materials discharged from the guide pipe to the sieving box again, and circulate for crushing and sieving, and can choose to convey the materials on different sieve buckets according to the needs, avoiding small particles of materials Repeated crushing and screening will affect production efficiency.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the present utility model;

Fig. 2 is the front view structural representation of the utility model;

Fig. 3 is a schematic diagram of a partially enlarged structure at A in Fig. 1 of the present utility model;

Fig. 4 is a schematic diagram of a partially enlarged structure at B in Fig. 1 of the present utility model.

In the figure: 1. Screening box; 2. Rotary ring; 3. Gear ring; 4. First motor; 5. Gear; 6. First sieve bucket; 7. Second sieve bucket; 8. Material guide pipe; 10. Sealing cap; 11. Electric cylinder; 12. Crushing roller; 13. Second motor; 14. Feeding hopper; 15. Guide hopper; 16. Collection box.

Detailed ways

Example

Please refer to Fig. 1-4, concrete recycled aggregate crushing and screening equipment, including a sieving box 1, a hopper 14 is connected to the top of the sieving box 1, and construction waste is conveniently added to the inside of the sieving box 1 through the hopper 14, The inner upper side of the sieve box 1 is connected with a crushing mechanism, through which the construction waste is crushed. The inside of the sieve box 1 is provided with two ring grooves, and the inner sealing rotation of the two ring grooves is connected with a swivel 2. The outside of each swivel 2 is fixedly set with a toothed ring 3, and the left end of the sieve box 1 is provided with two through grooves, and the two through grooves communicate with the two ring grooves respectively, and the left end of the sieve box 1 is fixedly connected with two A first motor 4, the output ends of the two first motors 4 are fixedly connected with a gear 5, and the two gears 5 are respectively meshed with the two gear rings 3, and the inside of the upper swivel 2 is fixedly connected with a first screen The bucket 6 is fixedly connected with the second sieve bucket 7 inside the swivel 2 on the lower side. The sieve hole diameter of the second sieve bucket 7 is smaller than the sieve hole diameter of the first sieve bucket 6, and is driven by two first motors 4 respectively. The two gears 5 rotate, the two gears 5 drive the two gear rings 3 to rotate, the two gear rings 3 drive the two swivels 2 to rotate, and the two swivels 2 drive the first sieve bucket 6 and the second sieve bucket 7 to rotate respectively , it is convenient to make the construction waste roll on the first sieve bucket 6 and the second sieve bucket 7, and it is convenient to quickly screen the construction waste.

As shown in Figure 1, the inside of the sub-sieve box is fixedly connected with a guide hopper 15, and the guide hopper 15 is located on the upper side of the first sieve hopper 6, and the crushed construction waste falls to the inside of the first sieve hopper 6 through the guide hopper 15 , the bottom ends of the first sieve bucket 6 and the second sieve bucket 7 are rotatably connected with a feed pipe 8, and the right ends of the two feed pipes 8 extend to the right side of the sieve box 1, and the inner bottom of the sieve box 1 Side and the below of two feed pipes 8 are all placed collection box 16, by collection box 16 output in two feed pipes 8 and fall to the construction waste that falls to sub-screen box 1 inner bottom side is collected.

1 and 4, two guides 8 are slidably provided with connecting rods 9, and two sealing caps 10 are fixedly connected to the connecting rods 9, and the sealing caps 10 are set in a conical or arc-shaped structure, which is convenient for construction waste Slip off from the sealing cap 10 to prevent construction waste from accumulating on the sealing cap 10. The two sealing caps 10 are respectively located on the upper side of the two feeding pipes 8, and the bottom end of the lower feeding pipe 8 is fixedly connected with an electric cylinder. 11. The top end of the telescopic rod of the electric cylinder 11 is fixedly connected with the bottom end of the connecting rod 9, and the connecting rod 9 and the two sealing caps 10 are pulled by the electric cylinder 11 to move downward, and the sealing cap 10 is used to seal the material guide pipe 8, and pass The electric cylinder 11 pushes the connecting rod 9 and the sealing cap 10 to move upward, so that the sealing cap 10 is separated from the material guide pipe 8, and the construction waste on the first sieve bucket 6 and the second sieve bucket 7 passes through the gap between the seal cap 10 and the material guide pipe 8. The gap between them falls to the inside of the feed pipe 8 and is discharged through the feed pipe 8.

The crushed construction waste is screened by the first sieve bucket 6 and the second sieve bucket 7, and the construction waste with a diameter greater than the sieve holes of the first sieve bucket 6 and the second sieve bucket 7 will remain in the first sieve bucket 6 and the second sieve bucket 7. On the upper side of the second sieve bucket 7, when it is necessary to clean up the construction waste on the upper side of the first sieve bucket 6 and the second sieve bucket 7, the electric cylinder 11 pushes the connecting rod 8 and the two sealing caps 10 to move upward, so that the two The sealing cap 10 is separated from the two feed pipes 8, and the construction waste on the first sieve hopper 6 and the second sieve hopper 7 is discharged through the two feed pipes 8, which prevents the first sieve hopper 6 and the second sieve hopper 7 from The construction waste on the ground is cleaned manually, which reduces the labor intensity of the staff. The construction waste can be quickly discharged through the two guide pipes 8, which saves cleaning time, improves the efficiency of construction waste screening, and improves its practicability.

It should also be noted that, referring to Fig. 1, the crushing mechanism includes two crushing 12, and the two crushing rollers 12 are rotatably connected with the inner side wall of the screening box 1, and the left end of the screening box 1 is fixedly connected with two second motors 13 , the output ends of the two second motors 13 are respectively fixedly connected with the side ends of the two crushing rollers 12, the two crushing rollers 12 are driven to rotate by the two second motors 13, and the two crushing rollers 12 rotate to fall to two The construction waste in the middle of the crushing roller 12 is crushed. It is also possible to use only one second motor 13 to drive one of the crushing rollers 12 to rotate, and use gear transmission and other transmission methods to make the two crushing rollers 12 reversely rotate to crush the construction waste.

In order to further improve the aggregate production rate and the utilization rate of large particle materials after crushing, a circulating conveying box is detachably connected to one side of the screening box 1, and an auger is installed inside the circulating conveying box, and an adjustable The opening, the opening matches the position of the material guide pipe 8, the upper end of the circulating conveying box is connected with the inside of the screening box 1, when the unscreened material on the second sieve bucket 7 is available, close the upper and lower circulating conveying box The side feed pipe 8 is connected to the port, and the circulation conveying box is connected with the upper side feed pipe 8, and the output material from the first sieve bucket 6 is sent to the screening box 1 again through the circulation conveying box crushing to further crush and sieve it, and when it is necessary to circulate the crushing and sieving of the materials on the two sieve buckets, both openings are opened and communicated with the two material guide pipes 8, so that the two The materials on each sieve bucket are sent back to the sieve box 1 for crushing and screening again, and the above-mentioned operations are repeated, which can improve the utilization rate of construction waste crushing and the productivity of aggregate.

To sum up, when the whole construction waste recycled coarse and fine aggregate concrete is in use, the construction waste is put into the inside of the screening box 1 through the hopper 14, and the second motor 13 drives the two crushing rollers 12 to rotate. The first crushing roller 12 rotates to crush the construction waste falling between the two crushing rollers 12, and the crushed construction waste falls to the inside of the first sieve bucket 6 through the guide hopper 15, and the construction waste is processed by the first sieve bucket 6 through the first sieve bucket 6. Once screened, the construction waste falling from the first sieve bucket 6 falls on the second sieve bucket 7, and the construction waste is screened twice through the second sieve bucket 7, and the construction waste suitable for processing concrete passes through the second sieve bucket 7. The second sieve bucket 7 falls into the collection box 16 on the inner bottom side of the sieve box 1;

In the process of screening construction waste, when there is more construction waste on the first sieve bucket 6 and the second sieve bucket 7, the two first motors 4 respectively drive the two gears 5 to rotate, and the two gears 5 drive The two gear rings 3 rotate, the two gear rings 3 drive the two swivel rings 2 to rotate, and the two swivel rings 2 respectively drive the first sieve bucket 6 and the second sieve bucket 7 to rotate, so that the construction waste is separated between the first sieve bucket 6 and the second sieve bucket 7. Roll on the second sieve bucket 7 to quickly sieve the construction waste;

When it is necessary to clean up the construction waste on the upper side of the first sieve bucket 6 and the second sieve bucket 7, the electric cylinder 11 pushes the connecting rod 9 and the two sealing caps 10 to move upward, so that the two sealing caps 10 and the two guides The material pipe 8 is separated, and the construction waste on the first sieve hopper 6 and the second sieve hopper 7 is discharged through the two material guide pipes 8, and falls into the interior of the corresponding collection box 16 respectively.

Claims (6)

1. Concrete recycled aggregate crushing and screening equipment, including a screening box (1), characterized in that: The inner upper side of the sieving box (1) is connected with a crushing mechanism for crushing the construction waste thrown into the sieving box (1); At least one sieve bucket is provided in the internal rotation of the sieve box (1), which is used to sieve and crush the construction waste; The bottom end of the sieve bucket is rotatably connected with a feed pipe (8), and one end of the feed pipe (8) extends to the outside of the screening box (1); A connecting rod (9) runs through and slides through the material guide pipe (8), at least one sealing cap (10) is fixedly connected to the connecting rod (9), and an electric cylinder (11) is fixedly connected to one end of the connecting rod (9). The electric cylinder (11) drives the sealing cap (10) to slide relative to the material guide tube (8), so as to switch the open or closed state of the material guide tube (8). 2. The crushing and screening equipment for concrete recycled aggregate according to claim 1, characterized in that: the inside of the sieve box (1) is provided with two ring grooves, and the inner sealing and rotating connections of the two ring grooves are connected with a rotary ring. ring (2), the insides of the two swivels (2) are fixedly connected with screen buckets, and the outsides of the two swivels (2) are fixedly sleeved with toothed rings (3), One end of the screening box (1) is provided with two through grooves, and the two through grooves communicate with the two annular grooves respectively, and one end of the screening box (1) is fixedly connected with two first motors (4), and the two first motors The output ends of (4) are all fixedly connected with gears (5), and the two gears (5) mesh with the two gear rings (3) respectively. 3. The crushing and screening equipment for concrete recycled aggregate according to claim 1, characterized in that: the crushing mechanism comprises two crushing rollers (12), and the two crushing rollers (12) are connected with the screening box (1) The inner side wall of the rotatable connection, and the transmission connection between the two crushing rollers (12), One end of the screening box (1) is fixedly connected with a second motor (13), and the output end of the second motor (13) is fixedly connected with one end of one of the crushing rollers (12). 4. The crushing and screening equipment for concrete recycled aggregate according to claim 1, characterized in that: the interior of the sieving box (1) is fixedly connected with a guide hopper (15), and the guide hopper (15) is located at the first sieve The upper side of the bucket (6). 5. The crushing and screening equipment for concrete recycled aggregate according to claim 1, characterized in that: collection boxes are placed on the inner bottom side of the sieving box (1) and below the two feed pipes (8) (16). 6. The crushing and screening equipment for concrete recycled aggregate according to claim 1, characterized in that: one side of the sieving box (1) is detachably connected with a circulation conveying box, and an auger is arranged inside the circulation conveying box for rotation, The circulation conveying box is provided with an adjustable opening which matches the position of the material guide pipe (8), and the upper end of the circulation conveying box communicates with the inside of the screening box (1).

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