CN221580828U - Recycled concrete processing device - Google Patents

Abstract

The utility model discloses a regenerated concrete treatment device which comprises a shell, wherein a concrete crushing unit is arranged at the inner top of the shell, a steel bar sorting unit is arranged below the concrete crushing unit, a concrete secondary crushing and cleaning unit is arranged on one side of the steel bar sorting unit, and a concrete screening unit is arranged below the concrete secondary crushing and cleaning unit. The recycled concrete treatment device disclosed by the utility model has the advantages of high sorting efficiency, simplicity in operation, dust-free and environment-friendly performance, capability of rapidly treating various waste concrete materials, reduction in treatment cost, and capability of solving the defects of single action, inconvenience in operation and high labor cost of the conventional recycled concrete treatment device, so that the utilization value of the recycled concrete is further improved.

Description

Recycled concrete processing device

Technical Field

The utility model belongs to the technical field of building construction devices, and in particular relates to a recycled concrete processing device.

Background Art

Recycled concrete refers to the new concrete made by crushing, cleaning and grading discarded concrete blocks, mixing them with grading in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel (mainly coarse aggregates), and then adding cement, water, etc. The use of recycled aggregates is a sustainable development method that can not only reduce the generation of concrete waste, but also save raw materials and reduce construction costs.

During the construction process, a lot of waste reinforced concrete that is difficult to handle is usually generated. Recycled concrete technology can realize the reuse of waste reinforced concrete, reduce the waste of resources and environmental pollution caused by construction waste, and conform to the concept of sustainable development. However, in the existing recycled concrete processing process, it is usually necessary to manually separate the crushed steel bars and concrete, and then screen the recycled concrete aggregates by machine or manual. This process is time-consuming, labor-intensive, inefficient, dusty, and expensive, and may even exceed the value of concrete recycling. Therefore, how to improve technology and design a device that can quickly sort steel waste from waste reinforced concrete and process and screen recycled concrete aggregates is of great value and significance to reducing the cost of recycled concrete and improving the quality of recycled concrete.

Utility Model Content

The utility model aims to provide a recycled concrete processing device, which solves the problem of high cost of existing recycled concrete processing.

The technical solution adopted by the utility model is: a recycled concrete processing device, comprising a shell, a concrete crushing unit is arranged on the top of the shell, a steel bar sorting unit is arranged below the concrete crushing unit, a concrete secondary crushing and cleaning unit is arranged on one side of the steel bar sorting unit, and a concrete screening unit is arranged below the concrete secondary crushing and cleaning unit.

The utility model is also characterized in that:

The concrete crushing unit includes a pair of crushing rollers connected to the inner wall of the shell for horizontal rotation, a feeding port opened on the shell is arranged above the pair of crushing rollers, and two aggregate baffles are connected below the feeding port, which are respectively located on both sides of the pair of crushing rollers and the bottom ends are inclined inwards.

The angle between the aggregate baffle and the vertical plane shall not be less than 15°.

The steel bar sorting unit includes a chain conveyor with one end tilted upward and located below an opening formed by two aggregate baffles, a steel bar discharging port is opened on the side wall of the shell corresponding to the upper end of the chain conveyor, and a scraper with one end tilted upward and against the chain conveyor is arranged in the steel bar discharging port, driving wheels are meshed on both sides of the lower end of the chain conveyor, and a motor is coaxially connected to the driving wheel on one side, and driven wheels are meshed on both sides of the upper end of the chain conveyor, and the driven wheel and the driving wheel are rotatably connected with a support below, and the support is also rotatably connected with a hollow gear meshed with both sides of the chain conveyor through a ball bearing, the outer ring of the ball bearing is fixed to the hollow gear, the outer end of the inner ring of the ball bearing is fixed to the support, and a columnar magnet is fixedly connected between the inner rings of the ball bearings on both sides of the chain conveyor, and a guide plate with the other end tilted downward and connected to the concrete secondary crushing and cleaning unit is arranged on one side of the support corresponding to the lower end of the chain conveyor.

The angle between the chain conveyor belt and the horizontal plane shall not be less than 10° and not more than 20°.

The secondary crushing and cleaning unit for concrete includes a crushing and mixing barrel with one end extending out of a shell. The crushing and mixing barrel is located in the shell and is provided with a feed channel opening connected with the lower end of the guide plate at one end. A crushing paddle is coaxially connected to the crushing and mixing barrel. A water tank connected with the crushing and mixing barrel is arranged above the crushing and mixing barrel and an electric valve is arranged at the connecting position. A water inlet connected to the outside of the shell is arranged on the top of the water tank. A large-pore filter screen connected to the concrete screening unit is arranged at the bottom of the crushing and mixing barrel.

The side wall of the water tank is provided with a water level observation window connected to the outside of the shell.

The concrete screening unit includes an inclined medium-pore filter below the large-pore filter, a coarse aggregate passage opening is provided at the lower end of the medium-pore filter corresponding to the side wall of the shell, an inclined small-pore filter is provided below the medium-pore filter, a fine aggregate passage opening is provided at the lower end of the small-pore filter corresponding to the side wall of the shell, and both the small-pore filter and the medium-pore filter are rotatably connected with stirring paddles.

The angle between the small-pore filter and the medium-pore filter and the horizontal plane shall not be less than 10° and not more than 25°.

The bottom of the shell body is located below the small-pore filter screen and is connected to a mud pump through a sewage pipe.

The beneficial effects of the utility model are as follows: the recycled concrete processing device of the utility model has high sorting efficiency and is simple to operate, dust-free and environmentally friendly. It can quickly process various waste concrete materials and reduce processing costs. It solves the shortcomings of existing recycled concrete processing devices such as single function, inconvenient operation and high labor costs, thereby further improving the utilization value of recycled concrete.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a recycled concrete processing device of the present invention;

FIG2 is a schematic diagram of the structure of a chain conveyor belt in the recycled concrete processing device of the present invention;

FIG3 is a schematic diagram of the appearance structure of the recycled concrete processing device of the present invention.

In the figure, 1. feed inlet, 2. shell, 3. crushing roller, 4. aggregate baffle, 5. driving wheel, 6. driven wheel, 7. hollow gear, 8. ball bearing, 9. magnet, 10. motor, 11. scraper, 12. chain conveyor, 13. support, 14. water inlet, 15. electric valve, 16. feed channel opening, 17. crushing paddle, 18. large-pore filter, 19. crushing mixing barrel, 20. stirring paddle, 21. medium-pore filter, 22. small-pore filter, 23. mud pump, 24. drain pipe, 25. water tank, 26. switch, 27. water level observation window, 28. steel bar discharge port, 29. guide plate, 30. coarse aggregate channel opening, 31. fine aggregate channel opening.

DETAILED DESCRIPTION

The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

Example 1

The utility model provides a recycled concrete processing device, as shown in Figure 1, comprising a shell 2, a concrete crushing unit is arranged on the top of the shell 2, a steel bar sorting unit is arranged below the concrete crushing unit, a concrete secondary crushing and cleaning unit is arranged on one side of the steel bar sorting unit, and a concrete screening unit is arranged below the concrete secondary crushing and cleaning unit.

Through the above method, the recycled concrete processing device of the utility model has high sorting efficiency, simple operation, dust-free and environmentally friendly, can quickly process various waste concrete materials, reduce processing costs, and solve the shortcomings of existing recycled concrete processing devices such as single function, inconvenient operation, and high labor costs, thereby further improving the utilization value of recycled concrete.

Example 2

The concrete crushing unit includes a feed inlet 1, below which is arranged a group of crushing rollers 3 rotating in opposite directions, and both ends of the crushing rollers 3 are rotatably connected to the inner side walls of a shell 2, and on both sides of the crushing rollers 3 are arranged aggregate baffles 4 with bottoms tilted inwards, which are fixedly connected to the shell 2, with an angle of not less than 15° with the vertical direction, and a minimum distance from the crushing rollers 3 of not less than 5 cm.

As shown in FIG2 , the steel bar sorting unit includes a driving wheel 5 and a driven wheel 6 arranged at different heights, the angle between the plane where the driving wheel 5 and the driven wheel 6 are located and the horizontal plane is at least 10° and at most 20°, and the driving wheel 5 and the driven wheel 6 are fixedly connected to the support 13, the driving wheel 5 and the driven wheel 6 are meshed with a chain conveyor 12, two hollow gears 7 meshed with the chain conveyor 12 are equidistantly arranged in the middle of each side, the inner side of the hollow gear 7 is fixedly connected to the outer ring of the ball bearing 8, the inner ring of the ball bearing 8 is fixedly connected to the support 13, and the inner rings of the two opposite ball bearings 8 on both sides of the chain conveyor 12 are fixedly connected to the columnar magnets 9. The motor 10 is connected to the switch 26 outside the housing 2, and a scraper 11 with the outer end facing downward and abutting against the chain conveyor 12 is arranged at the steel bar discharge port 28. The design of the chain conveyor 12 with the magnet 9 can quickly sort out the steel waste in the reinforced concrete block, and has a simple structure and convenient operation. It does not require multiple people to operate at the same time, which effectively reduces the labor cost of sorting steel bars. Compared with manual separation of steel bars, it can not only absorb large sections of steel bars, but also absorb metal impurities with smaller particle sizes, thereby improving the purity of recycled concrete aggregates, thereby improving the quality and strength of recycled concrete. The combination of the hollow gear 7 and the ball bearing 8 not only provides a suitable position for the placement of the magnet 9, but also allows the surface of the chain conveyor 12 to be evenly magnetized, and can also provide support for the middle of the chain conveyor 12, making the entire structure more stable.

The secondary concrete crushing and cleaning unit includes a water tank 25, a water inlet 14 arranged on the top of the water tank 25, a water level observation window 27 arranged on the side of the water tank 25 as shown in Figure 3, and a scale drawn on the water level observation window 27. The bottom of the water tank 25 is connected to the crushing and mixing barrel 19 through a water inlet channel. An electric valve 15 connected to a switch 26 is installed at the entrance of the water inlet channel. When the water level reaches the lowest scale, water needs to be added through the water inlet 14. The electric valve 15 is in a closed state when idle, and is opened to add water into the crushing and mixing barrel 19 when the switch 26 is turned on. The crushing paddle 17 is rotatably connected to the inner side wall of the crushing and mixing barrel 19 through a rotating shaft, and the outer side of the crushing and mixing barrel 19 is movably connected to the shell 2. A feed channel opening 16 and a handle are respectively provided on both sides. The feed channel opening 16 is slightly lower than the driving wheel 5. A guide plate 29 is provided at the bottom of the chain conveyor 12 and connected to the crushing and mixing barrel 19, so that the concrete blocks falling on the chain conveyor 12 can smoothly enter the crushing and mixing barrel 19 by gravity. The bottom surface of the crushing and mixing barrel is a large-pore filter 18. After the switch is turned on, the crushing paddle 17 in the crushing and mixing barrel 19 will rotate at a high speed. The sieve diameter of the large-pore filter 18 is the maximum particle size of the aggregate required for the current project. The crushing and mixing barrel 19 is movably connected to the inner wall of the shell 2, and the crushing and mixing barrel 19 can be pulled out to clean the concrete blocks that cannot be crushed therein. The design of the removable crushing and mixing barrel 19 is convenient for operators to regularly check and clean the interior, reducing the possibility of failure of the crushing paddle 17. At the same time, it is also convenient to repair and replace the crushing paddle 17, which can effectively extend the service life.

The concrete screening unit includes two stirring paddles 20, which are respectively fixed on a medium-pore filter screen 21 and a small-pore filter screen 22 arranged in a staggered and inclined manner, to assist in screening recycled concrete aggregates and avoid clogging of the filter screen. The angle between the medium-pore filter screen 21 and the small-pore filter screen 22 and the horizontal plane is at least 10° and at most 25°. The medium-pore filter screen 21 and the small-pore filter screen 22 are respectively connected to the coarse aggregate channel opening 30 and the fine aggregate channel opening 31 on the side wall of the shell 2, and the bottom of the shell 2 is connected to the mud pump 23 through a sewage pipe 24. The screening area is divided into three parts, the upper and lower parts. The sieve hole diameter of the medium-pore filter 21 arranged at the higher position is the minimum particle size of the coarse aggregate required for the current project, and is connected to the coarse aggregate channel port 30. The sieve hole diameter of the small-pore filter 22 arranged at the lower position is the minimum diameter of the fine aggregate required for the current project, and is connected to the fine aggregate channel port 31. The bottom space collects sewage and waste particles, which are discharged through the sewage pipe 24 under the action of the mud pump 23. The design of the combination of the inclined filter screen and the stirring paddle 20 can make the concrete aggregate fully contact with the filter screen, and the concrete aggregate that does not meet the particle size conditions can be screened out as much as possible. The concrete aggregate that meets the particle size conditions can be discharged by gravity under the push of the stirring paddle 20, which can not only improve the quality of the recycled concrete aggregate, but also avoid clogging of the filter screen and improve work efficiency.

Example 3

The working process of the recycled concrete processing device of the utility model is as follows:

Before use, check the entire device, eliminate any faults in each unit, ensure that there is sufficient water in the water tank 25, and add lubricating oil to the surfaces of the crushing roller 3, the driving wheel 5, the driven wheel 6, the hollow gear 7, the ball bearing 8, the crushing paddle 17 and the stirring paddle 20 to avoid malfunctions of the device components during use and unnecessary losses.

When in use, first turn on the switch 26, then the crushing roller 3 and the motor 10 start, the chain conveyor 12, the crushing paddle 17 and the stirring paddle 20 start to operate, and the electric valve 15 and the mud pump 23 are opened; after it is fully started, the waste reinforced concrete is thrown into the feed port 1 by a crane, and the waste reinforced concrete material is crushed by the crushing roller 3, and the concrete blocks are separated from the steel bars and fall onto the chain conveyor 12 running slowly counterclockwise below. The steel waste is adsorbed on the surface of the chain conveyor 12 and driven to be transported upward. When passing through the steel bar discharge port 28, it is scraped off from the conveyor surface by the scraper 11 and discharged through the steel bar discharge port 28. The concrete blocks fall into the bottom of the crushing and mixing barrel 19 through the guide plate 29 and the feed channel port 16 under the action of gravity.

The water discharged from the water tank 25 into the crushing and mixing barrel 19 is driven by the high-speed rotating crushing paddle 17 to fully contact the concrete blocks entering the crushing and mixing barrel 19, wash away the dust and impurities on the surface of the concrete blocks and increase the water content of the concrete blocks. The concrete blocks with diameters smaller than the maximum aggregate size required for the current project pass through the large-pore filter 18, and the remaining large-particle concrete blocks are crushed again by the high-speed crushing paddle 17. The concrete blocks passing through the large-pore filter 18 rotate under the impetus of the mixing paddle 20, and the concrete aggregates with diameters smaller than the minimum coarse aggregate size required for the current project pass through the medium-pore filter 21, and the remaining part is discharged from the coarse aggregate channel 30; the concrete blocks passing through the medium-pore filter 21 rotate under the impetus of the mixing paddle 20, and the concrete aggregates with diameters smaller than the minimum fine aggregate size required for the current project pass through the small-pore filter 22, and the remaining part is discharged from the fine aggregate channel 31; the impurities and sewage passing through the small-pore filter 22 are discharged through the sewage pipe 24 under the action of the mud pump 23.

After use, turn off the switch 26 to stop the device, fill the water tank 25 with water through the water inlet 14, draw out the crushing and mixing barrel 19, clean out the remaining waste inside and put it back, and add lubricating oil to the surfaces of the crushing roller 3, the driving wheel 5, the driven wheel 6, the hollow gear 7, the ball bearing 8, the crushing paddle 17 and the mixing paddle 20 again.

Claims (10)

1. A recycled concrete processing device, characterized in that it comprises a shell (2), wherein a concrete crushing unit is arranged at the top of the shell (2), a steel bar sorting unit is arranged below the concrete crushing unit, a concrete secondary crushing and cleaning unit is arranged on one side of the steel bar sorting unit, and a concrete screening unit is arranged below the concrete secondary crushing and cleaning unit. 2. The recycled concrete processing device as described in claim 1 is characterized in that the concrete crushing unit includes a pair of crushing rollers (3) connected to the inner wall of the shell (2) for horizontal rotation, a feed port (1) opened on the shell (2) is arranged above the pair of crushing rollers (3), and two aggregate baffles (4) are connected below the feed port (1) and are located on both sides of the pair of crushing rollers (3) and the bottom ends of which are inclined inward. 3. The recycled concrete processing device as described in claim 2 is characterized in that the angle between the aggregate baffle (4) and the vertical plane is not less than 15°. 4. The recycled concrete processing device according to claim 2 is characterized in that the steel bar sorting unit includes a chain conveyor (12) with one end tilted upward and located below the opening formed by the two aggregate baffles (4), a steel bar discharge port (28) is opened on the side wall of the shell (2) corresponding to the upper end of the chain conveyor (12), and a scraper (11) with one end tilted upward and abutting against the chain conveyor (12) is arranged in the steel bar discharge port (28), driving wheels (5) are meshed on both sides of the lower end of the chain conveyor (12), and a motor (10) is coaxially connected to the driving wheel (5) on one side, and a driven wheel (10) is meshed on both sides of the upper end of the chain conveyor (12). The driven wheel (6) and the driving wheel (5) are connected to a support (13) for common rotation below. The support (13) is also connected to a hollow gear (7) meshing with the two sides of the chain conveyor (12) for rotation through a ball bearing (8). The outer ring of the ball bearing (8) is fixed to the hollow gear (7). The outer end of the inner ring of the ball bearing (8) is fixed to the support (13). A columnar magnet (9) is fixedly connected between the inner rings of the ball bearings (8) on both sides of the chain conveyor (12). A guide plate (29) is arranged on one side of the support (13) corresponding to the lower end of the chain conveyor (12) and the other end of the guide plate is tilted downward and connected to the concrete secondary crushing and cleaning unit. 5. The recycled concrete processing device as described in claim 4 is characterized in that the angle between the chain conveyor belt (12) and the horizontal plane is not less than 10° and not more than 20°. 6. The recycled concrete processing device according to claim 4 is characterized in that the concrete secondary crushing and cleaning unit comprises a crushing and mixing barrel (19) with one end extending out of the shell (2), the crushing and mixing barrel (19) is located in the shell (2) and is provided with a feed channel opening (16) at one end thereof which is connected to the lower end of the guide plate (29), a crushing paddle (17) is coaxially rotatably connected in the crushing and mixing barrel (19), a water tank (25) connected thereto is arranged above the crushing and mixing barrel (19) and an electric valve (15) is arranged at the connecting position, a water inlet (14) connected to the outside of the shell (2) is arranged at the top of the water tank (25), and a large-pore filter (18) connected to the concrete screening unit is arranged at the bottom of the crushing and mixing barrel (19). 7. The recycled concrete processing device according to claim 6, characterized in that a water level observation window (27) connected to the outside of the shell (2) is provided on the side wall of the water tank (25). 8. The recycled concrete processing device according to claim 6 is characterized in that the concrete screening unit includes an inclined medium-pore filter (21) located below the large-pore filter (18), a coarse aggregate passage opening (30) is opened on the side wall of the shell (2) corresponding to the lower end of the medium-pore filter (21), an inclined small-pore filter (22) is arranged below the medium-pore filter (21), a fine aggregate passage opening (31) is opened on the side wall of the shell (2) corresponding to the lower end of the small-pore filter (22), and a stirring paddle (20) is rotatably connected to both the small-pore filter (22) and the medium-pore filter (21). 9. The recycled concrete processing device according to claim 8, characterized in that the angles between the small-pore filter (22) and the medium-pore filter (21) and the horizontal plane are not less than 10° and not more than 25°. 10. The recycled concrete processing device according to claim 8, characterized in that the bottom of the shell (2) located below the small-pore filter (22) is connected to a mud pump (23) through a sewage pipe (24).