CN221789532U - A device for removing mortar from recycled concrete aggregate - Google Patents

Abstract

The utility model discloses a device for removing mortar from recycled concrete aggregates, including an aggregate screening box and a grinding bin inserted at the upper end of the aggregate screening box, a grinding mechanism is arranged in the grinding bin, a screening mechanism is arranged in the aggregate screening box, the grinding mechanism includes a feed pipe, a conical feeding hopper, a drive motor, a drive shaft, a plurality of auger conveying blades, a mounting shell, a rotating shaft, a plurality of groups of breaking up blades and a conical grinding block, and the screening mechanism includes two groups of springs one, a screen plate one, two groups of springs two, a screen plate two, a double-shaft motor, a group of connecting rods one and a group of connecting rods two. The beneficial effect of the utility model is that the feed pipe evenly delivers the recycled aggregates to the grinding bin, a plurality of groups of breaking up blades can break up the recycled aggregates, and the conical grinding block is used to grind and remove the mortar on the surface of the recycled aggregates, and the screening mechanism uses a double-shaft motor to drive a group of screen plates to vibrate, so as to achieve graded screening of the ground recycled aggregates.

Description

A device for removing mortar from recycled concrete aggregate

Technical Field

The utility model relates to the field of recycled concrete, in particular to a device for removing aggregate mortar from recycled concrete.

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 aggregate), and then adding cement, water, etc. Recycled concrete can be made into the following types of concrete according to the combination of aggregates: all aggregates are recycled aggregates; coarse aggregates are recycled aggregates and fine aggregates are natural sand; coarse aggregates are natural crushed stone or pebbles and fine aggregates are recycled aggregates; recycled aggregates replace part of coarse aggregates or fine aggregates.

The performance of recycled concrete aggregate can be improved by removing the hardened cement stone attached to the surface of recycled concrete aggregate. The existing patent application number is CN202321045433.X, which discloses a recycled concrete aggregate mortar removal device. Through the cooperation of structures such as a grinding cylinder, a second grinding block and a first grinding block, the material can be ground continuously, and then the larger mortar particles can be ground into smaller or powdery structures without frequent cleaning of the sieve plate. However, recycled concrete aggregate is prone to agglomeration. Direct grinding treatment has low efficiency in removing hardened cement stone from the surface, and it is impossible to screen and grade the recycled aggregate after grinding.

It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art.

Utility Model Content

In view of the above defects, the utility model provides a recycled concrete aggregate mortar removal device to solve the problem of removing mortar on the surface of recycled concrete aggregate.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A recycled concrete aggregate mortar removal device comprises an aggregate screening box and a grinding bin inserted at the upper end of the aggregate screening box, wherein a grinding mechanism is arranged in the grinding bin, and a screening mechanism is arranged in the aggregate screening box;

The grinding mechanism includes a feed pipe, a conical hopper, a drive motor, a drive shaft, a plurality of auger conveying blades, a mounting shell, a rotating shaft, a plurality of groups of breaking up blades and a conical grinding block. The feed pipe is inserted on the left side of the upper end of the grinding bin, the conical hopper is inserted on the left side of the upper end of the feed pipe, the drive motor is installed on the left side of the feed pipe, and the rotating end is movably inserted in the feed pipe, the drive shaft is installed on the rotating end of the drive motor, a plurality of auger conveying blades are evenly installed on the drive shaft, the mounting shell is installed on the top of the grinding bin, the rotating shaft is movably inserted at the bottom of the mounting shell, a plurality of groups of breaking up blades are evenly installed on the rotating shaft, and the conical grinding block is installed at the bottom of the rotating shaft.

Furthermore, the screening mechanism includes two groups of reeds 1, screen plates 1, two groups of reeds 2, screen plates 2, a dual-axis motor, a group of connecting rods 1 and a group of connecting rods 2. The two groups of reeds 1 are installed on the top of the aggregate screening box, the screen plates 1 are installed on the bottom of the two groups of reeds 1, the two groups of reeds 2 are installed on the bottom of the screen plates 1, the screen plates 2 are installed on the bottom of the two groups of reeds 2, the dual-axis motor is installed on the left side of the screen plates 1, a group of connecting rods 1 is installed on the rotating ends on both sides of the dual-axis motor, a group of connecting rods 2 is hinged at the front end of a group of connecting rods 1, and the bottoms are respectively connected to the screen plates 2.

Furthermore, a group of guide plates corresponding to the screen plate one and the screen plate two are installed in the aggregate screening box.

Furthermore, the driving shaft and the rotating shaft are connected via a set of bevel gear sets.

Furthermore, a conical grinding cavity corresponding to the conical grinding block is arranged in the grinding chamber, and the conical grinding block and the conical grinding cavity are respectively equipped with a plurality of grinding teeth.

Furthermore, a group of aggregate outlets are opened on both sides of the bottom of the aggregate screening box.

The utility model provides a device for removing mortar from recycled concrete aggregates, which has the following beneficial effects: a grinding mechanism located in the grinding bin first uses a feed pipe to evenly deliver the recycled aggregates into the grinding bin, a plurality of groups of breaking blades can break up the recycled aggregates, and a conical grinding block is used to grind and remove the mortar on the surface of the recycled aggregates; a screening mechanism uses a dual-axis motor to drive a group of screen plates to vibrate, so as to achieve graded screening of the ground recycled aggregates.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a device for removing mortar from recycled concrete aggregates according to the utility model.

FIG. 2 is a schematic diagram of a grinding mechanism of the present utility model.

FIG3 is a schematic diagram of a screening mechanism of the present invention.

FIG. 4 is a top view of the screen plate of the present invention.

FIG. 5 is a second top view of the screen plate of the present invention.

In the figure: 1. Aggregate screening box; 2. Grinding bin; 3. Feed pipe; 4. Conical hopper; 5. Driving motor; 6. Driving shaft; 7. Auger conveying blade; 8. Mounting shell; 9. Rotating shaft; 10. Breaking blade; 11. Conical grinding block; 12. Reed one; 13. Screen plate one; 14. Reed two; 15. Screen plate two; 16. Double-axis motor; 17. Connecting rod one; 18. Connecting rod two; 19. Guide plate; 20. Bevel gear set; 21. Conical grinding chamber; 22. Grinding teeth; 23. Aggregate outlet.

DETAILED DESCRIPTION

The utility model is described in detail below in conjunction with the accompanying drawings, as shown in Figures 1-5: a recycled concrete aggregate mortar removal device, comprising an aggregate screening box 1 and a grinding bin 2 inserted at the upper end of the aggregate screening box 1, wherein the grinding bin 2 is provided with a grinding mechanism, and the aggregate screening box 1 is provided with a screening mechanism; the grinding mechanism comprises a feed pipe 3, a conical feeding hopper 4, a drive motor 5, a drive shaft 6, a plurality of auger conveying blades 7, a mounting shell 8, a rotating shaft 9, a plurality of groups of breaking blades 10 and a conical grinding block 11, wherein the feed pipe 3 is inserted in the grinding bin 2, the conical feeding hopper 4 is inserted on the left side of the upper end of the feed pipe 3, the driving motor 5 is installed on the left side of the feed pipe 3, and the rotating end is movably inserted in the feed pipe 3, the driving shaft 6 is installed on the rotating end of the driving motor 5, and a plurality of auger conveying blades 7 are evenly installed on the driving shaft 6, the mounting shell 8 is installed on the top of the grinding bin 2, the rotating shaft 9 is movably inserted at the bottom of the mounting shell 8, a plurality of groups of scattering blades 10 are evenly installed on the rotating shaft 9, and the conical grinding block 11 is installed at the bottom of the rotating shaft 9; the screening mechanism includes Two groups of reeds 12, screen plates 13, two groups of reeds 2 14, screen plates 2 15, double-axis motors 16, a group of connecting rods 17 and a group of connecting rods 2 18. Two groups of reeds 12 are mounted on the top of the aggregate screening box 1, the screen plates 13 are mounted on the bottom of the two groups of reeds 12, the two groups of reeds 2 14 are mounted on the bottom of the screen plates 13, the screen plates 2 15 are mounted on the bottom of the two groups of reeds 2 14, the double-axis motors 16 are mounted on the left side of the screen plates 13, a group of connecting rods 17 are mounted on the rotating ends on both sides of the double-axis motors 16, and one A second connecting rod 18 is hinged at the front end of a first connecting rod 17, and the bottom is respectively connected to the second screen plate 15; a group of guide plates 19 corresponding to the first screen plate 13 and the second screen plate 15 are installed in the aggregate screening box 1; the drive shaft 6 and the rotating shaft 9 are connected by a group of bevel gears 20; a conical grinding cavity 21 corresponding to the conical grinding block 11 is provided in the grinding bin 2, and the conical grinding block 11 and the conical grinding cavity 21 are respectively installed with a plurality of grinding teeth 22; a group of aggregate outlets 23 are opened on both sides of the bottom of the aggregate screening box 1.

Working principle of this embodiment: The electrical equipment used in the device is controlled by an external controller. When in use, the user first evenly puts the recycled concrete aggregate into the conical feeding hopper 4;

During the breaking and grinding process: the feed pipe 3 is inserted into the left side of the upper end of the grinding chamber 2, the conical feed hopper 4 is inserted into the left side of the upper end of the feed pipe 3, the drive motor 5 is installed on the left side of the feed pipe 3, and the rotating end is inserted into the feed pipe 3 through a fastening bearing, the drive shaft 6 is installed on the rotating end of the drive motor 5, and a plurality of auger conveying blades 7 are evenly installed on the drive shaft 6, the mounting shell 8 is installed on the top of the grinding chamber 2, the rotating shaft 9 is movably inserted into the bottom of the mounting shell 8 through a fastening bearing, a plurality of groups of breaking blades 10 are evenly installed on the rotating shaft 9, the conical grinding block 11 is installed at the bottom of the rotating shaft 9, and the drive shaft 6 and the rotating shaft 9 are connected by a group of bevel gears. The grinding chamber 2 is provided with a conical grinding chamber 21 corresponding to the conical grinding block 11, and the conical grinding block 11 and the conical grinding chamber 21 are respectively provided with a plurality of grinding teeth 22. As shown in FIG. 2 , the driving motor 5 firstly delivers the recycled aggregate to the grinding chamber 2 evenly through the plurality of auger conveying blades 7 on the driving shaft 6. At the same time, the driving shaft 6 drives the rotating shaft 9 to rotate, and the plurality of groups of breaking blades 10 first break up the recycled aggregate. The conical grinding block 11 and the plurality of grinding teeth 22 on the conical grinding chamber 21 can grind and remove the mortar on the surface of the broken recycled aggregate, thereby effectively improving the grinding efficiency and the removal effect.

During graded screening: two groups of springs 12 are installed at the top of the aggregate screening box 1, screen plates 13 are installed at the bottom of the two groups of springs 12, two groups of springs 2 14 are installed at the bottom of the screen plates 13, screen plates 2 15 are installed at the bottom of the two groups of springs 2 14, a double-axis motor 16 is installed on the left side of the screen plates 13, a group of connecting rods 17 are installed on the rotating ends on both sides of the double-axis motor 16, a group of connecting rods 2 18 are hinged at the front end of a group of connecting rods 17, and the bottoms are respectively connected to the screen plates 2 15, and a group of guide plates 19 corresponding to the screen plates 13 and 15 are installed in the aggregate screening box 1, driving The moving shaft 6 is connected to the rotating shaft 9 through a group of bevel gear sets 20. A group of aggregate outlets 23 are provided on both sides of the bottom of the aggregate screening box 1. As shown in FIGS. 3 to 5, the ground recycled aggregate falls onto the screen plate 13. The dual-axis motor 16 drives the screen plate 13 and the screen plate 2 15 to vibrate through a group of connecting rods 17 and a group of connecting rods 2 18, as well as two groups of reeds 12 and two groups of reeds 2 14, so as to screen and grade the recycled aggregate. The screened and graded aggregate can be discharged through a group of aggregate outlets 23. The mortar produced by grinding falls into the bottom of the aggregate screening box 1, and the user can clean it regularly.

The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present utility model and fall within the protection scope of the present utility model.

Claims (6)

1. The recycled concrete aggregate mortar removing device comprises an aggregate screening box (1) and a grinding bin (2) inserted at the upper end of the aggregate screening box (1), and is characterized in that a grinding mechanism is arranged in the grinding bin (2), and a screening mechanism is arranged in the aggregate screening box (1);

The grinding mechanism comprises a feeding pipeline (3), a conical feeding hopper (4), a driving motor (5), a driving shaft (6), a plurality of auger conveying blades (7), a mounting shell (8), a rotating shaft (9), a plurality of groups of scattering blades (10) and conical grinding blocks (11), wherein the feeding pipeline (3) is inserted into the left side of the upper end of the grinding bin (2), the conical feeding hopper (4) is inserted into the left side of the upper end of the feeding pipeline (3), the driving motor (5) is mounted on the left side of the feeding pipeline (3), the rotating end is movably inserted into the feeding pipeline (3), the driving shaft (6) is mounted on the rotating end of the driving motor (5), the auger conveying blades (7) are uniformly mounted on the driving shaft (6), the mounting shell (8) is mounted on the inner top of the grinding bin (2), the rotating shaft (9) is movably inserted into the bottom of the mounting shell (8), the groups of scattering blades (10) are uniformly mounted on the rotating shaft (9), and the conical grinding blocks (11) are mounted on the bottom of the rotating shaft (9).

2. The recycled concrete aggregate mortar removal device according to claim 1, wherein the screening mechanism comprises two groups of first reeds (12), a first screen plate (13), two groups of second reeds (14), a second screen plate (15), a double-shaft motor (16), a first group of connecting rods (17) and a second group of connecting rods (18), the two groups of first reeds (12) are arranged at the inner top of the aggregate screening box (1), the first screen plate (13) is arranged at the bottom of the two groups of first reeds (12), the two groups of second reeds (14) are arranged at the bottom of the first screen plate (13), the second screen plate (15) is arranged at the bottom of the two groups of second reeds (14), the double-shaft motor (16) is arranged at the left side on the first screen plate (13), the first group of connecting rods (17) is arranged at the rotating ends on two sides of the double-shaft motor (16), the second group of connecting rods (18) are hinged at the front ends of the first group of connecting rods (17), and the bottom is respectively connected with the second screen plate (15).

3. The recycled concrete aggregate mortar removal device according to claim 1, wherein a group of guide plates (19) corresponding to the first screen plate (13) and the second screen plate (15) are installed in the aggregate screening box (1).

4. A recycled concrete aggregate mortar removal device according to claim 1, wherein the drive shaft (6) is drivingly connected to the rotary shaft (9) by means of a set of bevel gear sets (20).

5. The recycled concrete aggregate mortar removal device according to claim 1, wherein a conical grinding cavity (21) corresponding to the conical grinding block (11) is arranged in the grinding bin (2), and a plurality of grinding teeth (22) are respectively arranged in the conical grinding block (11) and the conical grinding cavity (21).

6. The recycled concrete aggregate mortar removal device according to claim 1, wherein a group of aggregate outlets (23) are formed in two sides of the bottom of the aggregate screening box (1).