Crushing and recycling device for concrete

Abstract

The utility model discloses a crushing and recycling device for concrete, and relates to the technical field of crushing and recycling of the concrete.The crushing and recycling device comprises a crushing box, a feeding opening is formed in the upper surface of the crushing box, a crushing mechanism is mounted on the inner wall of the top end of the crushing box, a partition plate is fixedly connected to the middle of the inner side wall of the crushing box, and a guide pipe is mounted on the lower surface of the partition plate; an inclined plate is fixedly connected to the inner wall of the left side of the smashing box below the partition plate, a screening plate is fixedly connected to the inner wall of the bottom end of the smashing box, and a material guiding mechanism is installed on the outer wall of the left side of the smashing box; through cooperation of the structures, crushed waste concrete can be screened, concrete particles which do not meet the standard can be screened out for secondary or multiple times of crushing without manually taking out particles which are not well crushed, and the crushing and recycling efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete crushing and recycling, in particular to a crushing and recycling device for concrete. Background Art

[0002] Concrete crushing and recycling refers to the concrete aggregate formed after the discarded concrete blocks are crushed and cleaned. Concrete aggregate refers to the granular loose material that acts as a skeleton or filling in the concrete. It is divided into coarse aggregate and fine aggregate. Coarse aggregate refers to pebbles, crushed stones, etc., and fine aggregate refers to natural sand, artificial sand, etc.

[0003] The utility model with announcement number CN215313751U discloses a construction waste concrete separation system, including a screening machine, a motor 1 is fixedly installed on the outer end of the screening machine, a gear 1 is fixedly installed on the lower end of the motor 1, a gear 2 is meshed with the left end of the gear 1, a crushing wheel is fixedly installed on the lower end of the gear 2, both ends of the crushing wheel are rotatably connected with the screening machine, a motor 2 is fixedly installed on the inner wall of the screening machine, a transmission wheel is fixedly installed on the left end of the motor 2, the outer end of the transmission wheel is transmission-connected with a power belt, the lower end of the power belt is transmission-connected with a rotating shaft, the left end of the rotating shaft is rotatably connected with a concave plate, the left end of the concave plate is fixedly installed with the screening machine, a support block is fixedly installed on the bottom of the screening machine, the upper end of the support block is transmission-connected with a conveyor belt, and a feed port is fixedly installed on the upper end of the screening machine.

[0004] In the process of implementing this application, it was found that the technology has the following problems: when the discarded concrete blocks are reused, they need to be crushed to a certain standard size before they can be better utilized; while in the above patent documents, the discarded concrete is simply crushed for the first time using a crushing wheel and then directly transported to a screening barrel for separation and screening. During the crushing process, there may be large concrete blocks with incomplete crushing that enter the screening barrel for screening. Once there are many large concrete blocks, it will burden the subsequent screening of concrete particles and may even block the through holes on the screening barrel. Subsequently, these poorly crushed particles need to be manually taken out and re-introduced into the feed port for crushing, and the crushing recovery efficiency is poor.

[0005] For this purpose, a crushing and recycling device for concrete is proposed. Utility Model Content

[0006] The purpose of the utility model is to screen the crushed waste concrete without manually removing the poorly crushed particles. The concrete particles that do not meet the standards can be screened out for secondary or multiple crushing, thereby improving the crushing and recovery efficiency. The present application provides a crushing and recovery device for concrete.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A crushing and recycling device for concrete, comprising a crushing box, wherein the upper surface of the crushing box is provided with a feeding port, a crushing mechanism is installed on the top inner wall of the crushing box, a partition is fixedly connected to the middle of the inner wall of the crushing box, a material guide pipe is installed on the lower surface of the partition, a solenoid valve is installed on the lower outer surface of the material guide pipe, an inclined plate is fixedly connected to the left inner wall of the crushing box below the partition, a screening plate is fixedly connected to the bottom inner wall of the crushing box, and a material guide mechanism is installed on the left outer wall of the crushing box;

[0009] The material guiding mechanism includes a material guiding cylinder, the bottom internal volume cavity of the material guiding cylinder is connected with a trapezoidal through slot body, one end of the trapezoidal through slot body away from the material guiding cylinder is connected with the internal volume cavity of the crushing box, and the right end opening of the trapezoidal through slot body is close to the left end upper surface of the screening plate, the top inner wall of the material guiding cylinder is fixedly connected with motor 2, the output end of the motor 2 is installed with rotating rod 2, the outer surface of the rotating rod 2 is fixedly connected with auger blades, the upper internal volume cavity of the material guiding cylinder is connected with a return material conduit, and one end of the return material conduit away from the material guiding cylinder is connected with the feeding port.

[0010] Furthermore, the crushing mechanism includes a motor 1, which is fixedly connected to the top inner wall of the crushing box. A rotating rod 1 is installed at the output end of the motor 1, and a crushing blade is fixedly connected to the outer surface of the rotating rod 1.

[0011] Furthermore, the upper surface of the partition is inclined from all sides toward the upper end opening of the material guide pipe.

[0012] Furthermore, the inner bottom surface of the crushing box is inclined from all sides toward the upper end opening of the discharge pipe.

[0013] Furthermore, the inclined plate is inclined from left to right, and the screening plate is inclined from right to left.

[0014] Furthermore, a sealing plate is hingedly connected to the front side of the crushing box close to the screening plate, and a handle is fixedly connected to the outer surface of the sealing plate.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] In the utility model, after the waste concrete is put into the crushing box from the feeding port, the crushing mechanism can perform the initial crushing on the concrete, and then the solenoid valve is opened to make the concrete after the initial crushing fall from the guide pipe to the upper surface of the inclined plate, so that the concrete particles after the initial crushing can slide along the inclined plate to the upper surface of the right end of the screening plate, and the concrete particles falling to the upper surface of the right end of the screening plate will slide along the screening plate from right to left, and at this time, the particles that meet the recycling standards can pass through the screening plate and fall to the inner bottom surface of the crushing box; while the concrete with larger particles will slide to the trapezoidal through groove body and enter the inner bottom surface of the guide cylinder; at this time, starting the second motor can make the second rotating rod drive the auger blade to rotate, so as to transport these concrete particles that do not meet the standards, and these larger concrete particles will be re-put into the feeding port through the return pipe and enter the upper end cavity of the crushing box for secondary or multiple crushing, until they are crushed to meet the recycling standards; through the cooperation of the above structure, the crushed waste concrete can be screened, and there is no need to manually take out the particles with poor crushing, and the concrete particles that do not meet the standards can be screened out for secondary or multiple crushing, thereby improving the crushing and recycling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the material guiding mechanism in the utility model;

[0020] Figure 4 For the utility model Figure 2 A magnified image of point A;

[0021] Figure 5 It is a structural schematic diagram of the trapezoidal through-channel body in the utility model.

[0022] Markings in the figure: 1-crushing box, 2-crushing mechanism, 3-material guiding mechanism, 4-sealing plate, 11-feeding port, 12-partition, 13-inclined plate, 14-screening plate, 15-support plate, 16-discharge pipe, 17-valve, 18-material guiding pipe, 19-solenoid valve, 21-motor 1, 22-rotating rod 1, 23-crushing blade, 31-material guiding cylinder, 32-motor 2, 33-rotating rod 2, 34-auger blade, 35-trapezoidal through slot body, 36-return pipe, 41-handle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] Reference Figure 1-Figure 5 A crushing and recycling device for concrete comprises a crushing box 1, a feeding port 11 is provided on the upper surface of the crushing box 1, a crushing mechanism 2 is installed on the top inner wall of the crushing box 1, the crushing mechanism 2 comprises a motor 21, the motor 21 is fixedly connected to the top inner wall of the crushing box 1, a rotating rod 22 is installed on the output end of the motor 21, and a crushing blade 23 is fixedly connected to the outer surface of the rotating rod 22; specifically, after the waste concrete is put into the crushing box 1 from the feeding port 11, starting the motor 21 can make the rotating rod 22 drive the crushing blade 23 to rotate, so as to perform the initial crushing of the concrete.

[0026] Reference Figure 1-Figure 5 A partition 12 is fixedly connected to the middle part of the inner wall of the crushing box 1, a guide pipe 18 is installed on the lower surface of the partition 12, and a solenoid valve 19 is installed on the outer surface of the lower end of the guide pipe 18. An inclined plate 13 is fixedly connected to the inner wall of the left side of the crushing box 1 below the partition 12, and a screening plate 14 is fixedly connected to the inner wall of the bottom end of the crushing box 1. The upper surface of the partition 12 is inclined from all sides to the upper end opening of the guide pipe 18; specifically, the solenoid valve 19 is opened to allow the concrete after the initial crushing to fall from the guide pipe 18 to the upper surface of the inclined plate 13, so that the concrete particles after the initial crushing can slide along the inclined plate 13 to the upper surface of the right end of the screening plate 14, and the concrete particles falling to the upper surface of the right end of the screening plate 14 will slide from right to left along the screening plate 14. At this time, the particles that meet the recycling standards can pass through the screening plate 14 and fall to the inner bottom surface of the crushing box 1.

[0027] Reference Figure 1-Figure 5, a material guiding mechanism 3 is installed on the left outer wall of the crushing box 1; the material guiding mechanism 3 includes a material guiding cylinder 31, and the inner cavity at the bottom end of the material guiding cylinder 31 is connected with a trapezoidal through groove body 35, and the end of the trapezoidal through groove body 35 away from the material guiding cylinder 31 is connected with the inner cavity of the crushing box 1, and the right end opening of the trapezoidal through groove body 35 is close to the upper surface of the left end of the screening plate 14, and the inner wall of the top end of the material guiding cylinder 31 is fixedly connected with a motor 2 32, and a rotating rod 2 33 is installed at the output end of the motor 2 32, and an outer surface of the rotating rod 2 33 is fixedly connected with an auger blade 34, and the inner cavity at the upper end of the material guiding cylinder 31 is connected with a return material conduit 36, and the end of the return material conduit 36 ​​away from the material guiding cylinder 31 is connected with the feeding port 11, the inclined plate 13 is inclined from left to right, and the screening plate 14 is inclined from right to left. Left tilt; specifically, concrete with larger particles will slide along the screening plate 14 toward the trapezoidal through slot body 35 and enter the inner bottom surface of the guide barrel 31; at this time, starting the motor 2 32 can make the rotating rod 2 33 drive the auger blade 34 to rotate, so as to transport these concrete particles that do not meet the standards, and these larger concrete particles will be re-added into the feeding port 11 through the return conduit 36 ​​and enter the upper end cavity of the crushing box 1 for secondary or multiple crushing until they are crushed to meet the recycling standards; through the cooperation of the above structure, the crushed waste concrete can be screened, and there is no need to manually remove the poorly crushed particles, and the concrete particles that do not meet the standards can be screened out for secondary or multiple crushing, thereby improving the crushing and recycling efficiency.

[0028] Reference Figure 1-Figure 5 Support plates 15 are fixedly connected to both ends of the lower surface of the crushing box 1, and the internal cavity at the bottom end of the crushing box 1 is connected to a discharge pipe 16, and a valve 17 is provided on the outer surface of the lower end of the discharge pipe 16; the inner bottom surface of the crushing box 1 is inclined from all sides to the upper end opening of the discharge pipe 16; specifically, opening the valve 17 can allow particles that meet the recycling standards to be discharged from the discharge pipe 16 for recycling by the staff.

[0029] Reference Figure 1-Figure 5 A sealing plate 4 is hingedly connected to the front side of the crushing box 1 near the screening plate 14, and a handle 41 is fixedly connected to the outer surface of the sealing plate 4; specifically, the sealing plate 4 can be opened by holding the handle 41 so as to clean the upper surface of the screening plate 14.

[0030] The implementation principle of the embodiment of a crushing and recycling device for concrete in the present application is:

[0031] When using the device, first connect the external power supply, and after the waste concrete is put into the crushing box 1 from the feeding port 11, the crushing mechanism 2 can perform the initial crushing on the concrete, and then open the solenoid valve 19 to allow the initially crushed concrete to fall from the guide pipe 18 to the upper surface of the inclined plate 13, so that the initially crushed concrete particles can slide along the inclined plate 13 to the upper surface of the right end of the screening plate 14, and the concrete particles falling on the upper surface of the right end of the screening plate 14 will slide from right to left along the screening plate 14. At this time, the particles that meet the recycling standards can pass through the screening plate 14 and fall to the inner bottom surface of the crushing box 1. Opening the valve 17 can allow the particles that meet the recycling standards to be discharged from the discharge pipe 16 for recycling by the staff.

[0032] Concrete with larger particles will slide toward the trapezoidal through groove body 35 and enter the inner bottom surface of the guide barrel 31; at this time, starting the second motor 32 can make the second rotating rod 33 drive the auger blade 34 to rotate, so as to transport these concrete particles that do not meet the standards. These larger concrete particles will be re-introduced into the feeding port 11 through the return pipe 36 and enter the upper end cavity of the crushing box 1 for secondary or multiple crushing until they are crushed to meet the recycling standards; through the cooperation of the above structure, the crushed waste concrete can be screened, and there is no need to manually remove the poorly crushed particles. The concrete particles that do not meet the standards can be screened out for secondary or multiple crushing, thereby improving the crushing and recycling efficiency.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A crushing and recycling device for concrete, comprising a crushing box (1), characterized in that: The upper surface of the crushing box (1) is provided with a feeding port (11), the inner wall at the top of the crushing box (1) is provided with a crushing mechanism (2), a partition (12) is fixedly connected to the middle of the inner wall of the crushing box (1), a material guide pipe (18) is installed on the lower surface of the partition (12), and a solenoid valve (19) is installed on the lower outer surface of the material guide pipe (18), an inclined plate (13) is fixedly connected to the left inner wall of the crushing box (1) below the partition (12), a screening plate (14) is fixedly connected to the bottom inner wall of the crushing box (1), and a material guide mechanism (3) is installed on the left outer wall of the crushing box (1); The material guiding mechanism (3) comprises a material guiding cylinder (31), the inner cavity at the bottom end of the material guiding cylinder (31) is connected to a trapezoidal through slot body (35), the end of the trapezoidal through slot body (35) away from the material guiding cylinder (31) is connected to the inner cavity of the crushing box (1), and the right end opening of the trapezoidal through slot body (35) is close to the upper surface of the left end of the screening plate (14), the inner wall at the top end of the material guiding cylinder (31) is fixedly connected to a second motor (32), the output end of the second motor (32) is equipped with a second rotating rod (33), the outer surface of the second rotating rod (33) is fixedly connected to an auger blade (34), the inner cavity at the upper end of the material guiding cylinder (31) is connected to a return material conduit (36), and the end of the return material conduit (36) away from the material guiding cylinder (31) is connected to the feeding port (11).

2. A crushing and recycling device for concrete as claimed in claim 1, characterized in that: The pulverizing mechanism (2) comprises a motor (21) which is fixedly connected to the inner wall of the top end of the pulverizing box (1); a rotating rod (22) is mounted on the output end of the motor (21); a pulverizing blade (23) is fixedly connected to the outer surface of the rotating rod (22).

3. A crushing and recycling device for concrete as claimed in claim 1, characterized in that: The upper surface of the partition plate (12) is inclined from all sides toward the upper end opening of the material guide pipe (18).

4. A crushing and recycling device for concrete as claimed in claim 1, characterized in that: Support plates (15) are fixedly connected to both ends of the lower surface of the crushing box (1), the internal cavity at the bottom end of the crushing box (1) is connected to a discharge pipe (16), and a valve (17) is provided on the outer surface of the lower end of the discharge pipe (16).

5. A crushing and recycling device for concrete as claimed in claim 4, characterized in that: The inner bottom surface of the crushing box (1) is inclined from all sides toward the upper end opening of the discharge pipe (16).

6. A crushing and recycling device for concrete as claimed in claim 1, characterized in that: The inclined plate (13) is inclined from left to right, and the screening plate (14) is inclined from right to left.

7. A crushing and recycling device for concrete as claimed in claim 1, characterized in that: The crushing box (1) is hingedly connected with a sealing plate (4) on the front side thereof close to the screening plate (14); and a handle (41) is fixedly connected to the outer surface of the sealing plate (4).

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