Separating mechanism for gravel and concrete

Abstract

The utility model relates to a sand and concrete separating mechanism. According to the technical scheme, the gravel and concrete separating mechanism is provided with a fixing support, a plurality of supporting rods and a plurality of connecting rods, the shell is installed on the fixing support, a first feeding port is formed in the shell, a screen plate is arranged in the shell and can screen gravel concrete entering from the first feeding port, gravel is located on the screen plate, concrete grout falls off from the screen plate, and a first discharging port is formed in the position, above the screen plate, of the side wall of the shell; a second discharge hole is formed in the bottom of the shell; the driving mechanism is mounted on the shell and can drive the sieve plate to move; and the spraying mechanism is mounted on the shell and can spray water to the sieve plate. According to the device, the spraying mechanism sprays water to the sieve plate and the gravels on the sieve plate, the situation that the gravels falling out of the first discharging port are bonded due to the fact that concrete grout is left on the gravels is avoided, and the situation that the concrete grout is condensed on the sieve plate and influences the screening capacity of the sieve plate can also be avoided.

Description

Technical Field

[0001] This utility model relates to a separation mechanism for sand and gravel concrete. It is applicable to the field of concrete production equipment technology. Background Technology

[0002] In current construction projects, sand and gravel concrete is frequently required; however, excess sand and gravel concrete is often prepared. To avoid waste, it is necessary to separate the sand and gravel from the concrete slurry and recycle it for reuse. Currently, during the separation of sand and gravel concrete, the concrete slurry tends to adhere to the sand and gravel, and after the concrete slurry sets, it binds the sand and gravel together, hindering the recycling of the sand and gravel. Furthermore, when using sand and gravel concrete separation devices, the concrete slurry can solidify within the device, affecting its separation efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is: to solve the above-mentioned technical problem, this utility model provides a separation mechanism for sand and gravel concrete.

[0004] The technical solution adopted in this utility model is: a sand and gravel concrete separation mechanism, which has the following features:

[0005] Fixed bracket;

[0006] The shell is mounted on a fixed bracket. The shell has a first feed inlet and a screen plate inside. The screen plate can screen the sand and gravel concrete entering from the first feed inlet, so that the sand and gravel are on the screen plate and the concrete slurry falls from the screen plate. The shell has a first discharge outlet above the screen plate on the side wall and a second discharge outlet at the bottom of the shell.

[0007] The drive mechanism, mounted on the housing, can drive the screen plate to move.

[0008] A spraying mechanism, installed on the housing, sprays water onto the screen plate. Thus, after the aggregate concrete is fed into the housing through the first inlet, the aggregate concrete falls onto the screen plate. The drive mechanism moves the screen plate, improving its screening capacity. The aggregate remains on the screen plate, while the concrete slurry falls below it. The spraying mechanism sprays water onto the screen plate and the aggregate on it, preventing the concrete slurry from remaining on the aggregate and causing it to stick to the aggregate falling from the first outlet. It also prevents the concrete slurry from solidifying on the screen plate and affecting its screening capacity.

[0009] The first feed inlet is located at the front of the top of the shell, and the screen plate is arranged at an angle. The first end of the screen plate near the front of the shell is higher than the second end of the screen plate near the rear of the shell, and the first discharge outlet is located at the rear of the shell. In this way, the sand and gravel entering from the first feed inlet moves from the top of the screen plate to the bottom of the screen plate under its own weight and falls out from the first discharge outlet, which increases the movement distance and time of the sand and gravel within the shell, and is more conducive to separating the sand and gravel from the concrete slurry.

[0010] The housing has mounting holes at positions corresponding to the first end of the sieve plate. A connecting frame is mounted on the first end of the sieve plate, extending out of the housing through the mounting holes. A fixing plate is mounted on the second end of the sieve plate, extending out of the housing through the first discharge port. The driving mechanism can drive the connecting frame, sieve plate, and fixing plate to move along the front-back direction of the housing. Thus, with the cooperation of the connecting frame and the mounting holes, and the cooperation of the fixing plate and the first discharge port, the sieve plate can move easily within the housing along the front-back direction.

[0011] The driving mechanism has a first drive motor mounted on the housing, an incomplete gear mounted at the end of the first drive motor, and a rack arranged along the moving direction of the screen plate mounted on the connecting frame. The rack can mesh with the incomplete gear. A positioning rod is mounted on the housing along the moving direction of the screen plate, passing through the connecting frame. The positioning rod and the connecting frame can slide relative to each other. A baffle is mounted on the end of the positioning rod extending outside the connecting frame. A spring is fitted on the positioning rod between the housing and the connecting frame. Thus, when the first drive motor runs, it drives the incomplete gear to rotate. When the incomplete gear rotates to the point where its teeth mesh with the rack, it synchronously drives the connecting frame and the screen plate to move. At this time, the connecting frame and the positioning rod move relative to each other, and the spring on the positioning rod is in a stored energy state. When the first drive motor continues to drive the incomplete gear to rotate until the incomplete gear no longer meshes with the rack, the spring resets the connecting frame and the screen plate. This realizes the back-and-forth movement of the screen plate, improving the screening capacity of the screen plate. The baffle prevents the connecting frame from falling off the positioning rod.

[0012] A positioning tube arranged along the axial direction of the positioning rod is installed on the housing, and the positioning rod is installed inside the positioning tube. This facilitates the installation and removal of the positioning rod from the housing.

[0013] The bottom of the shell has a ramp that slopes from the rear to the front of the shell, and the second discharge port is located at the bottom of the ramp. In this way, the first discharge port is located at the rear of the shell, while the second discharge port is located at the front of the shell, which can effectively prevent the sand and gravel from mixing with the concrete slurry after separation.

[0014] A conveying pipe is installed on the fixed support at the lower part of the housing. A second inlet is provided on the conveying pipe at the position corresponding to the second outlet. The end of the conveying pipe extends outside the housing, and a third outlet is provided at the end of the conveying pipe away from the fixed support. A conveying mechanism is installed inside the conveying pipe. In this way, after the concrete slurry falls from the second outlet into the second inlet, the conveying mechanism moves the concrete slurry in the conveying pipe to the third outlet, and finally discharges the concrete slurry from the third outlet, facilitating the transportation of the concrete slurry outside the fixed support.

[0015] The conveying mechanism has a motor housing located at the end of the conveying pipe, and a second drive motor is installed inside the motor housing. A helical rod arranged along the axis of the conveying pipe is installed at the output end of the second drive motor. Thus, when the second drive motor operates, it drives the helical rod to rotate, and the rotation of the helical rod moves the concrete slurry inside the conveying pipe.

[0016] The water spraying mechanism has a water pipe, with the inlet end of the pipe connected to a water source and the outlet end extending into the housing. A nozzle is installed at the outlet end of the water pipe. In this way, water from the water source is transported to the nozzle through the water pipe and finally sprayed into the housing from the nozzle.

[0017] A connecting pipe is installed above the screen plate inside the casing, running along the left-right direction of the casing. The end of the water pipe inside the casing is installed on the connecting pipe along its length, and the nozzle is installed on the side wall of the water pipe along its length. The connecting pipe is connected to a water source outside the casing. In this way, the nozzles are evenly arranged above the screen plate, allowing water to be sprayed evenly onto the screen plate.

[0018] The beneficial effects of this utility model are as follows: This utility model installs a housing on a fixed support, and arranges a screen plate driven by a drive mechanism inside the housing. This facilitates the back-and-forth movement of the screen plate driven by the drive mechanism, thereby separating the sand and concrete entering the housing from the first inlet onto the reciprocating screen plate, separating the sand and concrete slurry. The sand and gravel move to the first outlet under their own weight on the inclined screen plate and fall out from the first outlet, while the concrete slurry falls out from the second outlet below the screen plate, thus achieving the separation of sand and concrete slurry. This utility model also incorporates a spraying mechanism inside the housing, and arranges several spray nozzles along the top of the screen plate. The connecting pipes are arranged in a left-right direction. Water pipes connected to the water source are installed on the connecting pipes, and nozzles are evenly installed on the side walls of the water pipes. The nozzles are evenly arranged above the screen plate, so that the water sprayed from the nozzles can be evenly sprayed on the screen plate, avoiding the concrete slurry from solidifying in some parts of the screen plate due to uneven water spraying. This utility model sets a conveying pipe under the shell, so that the concrete slurry falling from the second outlet falls into the conveying pipe. When the second drive motor drives the screw rod to rotate in the conveying pipe, it drives the concrete slurry in the conveying pipe to move to the third outlet and finally discharges from the third outlet, realizing the transportation of concrete slurry to the outside of the fixed support. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the shell of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the casing of this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the conveying pipe and motor box of this utility model.

[0023] Figure 5 This is a structural schematic diagram of the water pipe of this utility model.

[0024] Figure 6 This is a utility model Figure 3 A magnified structural diagram of point A in the middle.

[0025] In the diagram: 1. Shell; 2. Fixed bracket; 3. Conveying pipe; 4. Motor box; 5. Connecting frame; 6. First feed inlet; 7. Second discharge outlet; 8. Connecting pipe; 9. Screen plate; 10. Fixed plate; 11. Water pipe; 12. Positioning rod; 13. Baffle; 14. Second feed inlet; 15. Third discharge outlet; 16. Spiral rod; 17. Second drive motor; 18. Nozzle; 19. Rack; 20. First drive motor; 21. Incomplete gear; 22. Positioning plate; 23. Positioning pipe; 24. Spring. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0027] This embodiment is a sand and gravel concrete separation mechanism, which has a fixed support 2 and a housing 1 mounted on the fixed support 2. A first feed inlet 6 is provided on the top of the housing 1, and a screen plate 9 is provided inside the housing 1. A drive mechanism that can drive the screen plate 9 to move is installed on the side wall of the housing 1. The side of the housing 1 on which the drive mechanism is installed is the front side of the housing 1.

[0028] In this embodiment, the first feed inlet 6 is located at the front of the top of the housing 1. The screen plate 9 inside the housing 1 is arranged at an angle, with one end of the screen plate 9 near the front of the housing 1 being higher than the other end near the rear of the housing 1. This allows the sand and concrete falling into the housing 1 from the first feed inlet 6 to completely pass through the screen plate 9, and the sand and gravel can also fall out from the first discharge outlet under their own weight. Mounting holes are formed on the front side wall of the housing 1 at positions corresponding to the screen plate 9, and a first discharge outlet is formed on the rear side wall of the housing 1 at positions corresponding to the screen plate 9. A connecting frame 5 is installed on the screen plate 9 at the front end of the housing 1, extending out of the housing 1 through the mounting holes. A fixing plate 10 is installed on the screen plate 9 at the rear end of the housing 1, extending out of the housing 1 through the first discharge outlet. A drive mechanism is installed between the connecting frame 5 and the housing 1. Thus, the connecting frame 5 slides with the mounting hole, and the fixing plate 10 slides with the first discharge port. Under the action of the driving mechanism, the connecting frame 5, the screen plate 9 and the fixing plate 10 can move along the front and rear direction of the housing 1.

[0029] In this embodiment, the drive mechanism has a first drive motor 20 mounted on the housing 1. The first drive motor 20 is mounted on the housing 1 via a positioning plate 22. An incomplete gear 21 is mounted at the end of the first drive motor 20. A rack 19 arranged along the moving direction of the screen plate 9 is mounted on the connecting frame 5. The rack 19 can mesh with the incomplete gear 21. A positioning rod 12 is mounted on the housing 1 along the moving direction of the screen plate 9. The positioning rod 12 passes through the connecting frame 5 and can slide relative to the connecting frame 5. A baffle 13 is mounted on the end of the positioning rod 12 that extends outside the connecting frame 5. A spring 24 is fitted on the positioning rod 12 between the housing 1 and the connecting frame 5. Thus, when the first drive motor 20 runs, it drives the incomplete gear 21 to rotate. When the incomplete gear 21 rotates to the point where the teeth on the incomplete gear 21 mesh with the rack 19, it can synchronously drive the connecting frame 5 and the screen plate 9 to move. At this time, the connecting frame 5 and the positioning rod 12 move relative to each other, and the spring 24 on the positioning rod 12 is in an energy storage state. When the first drive motor 20 continues to drive the incomplete gear 21 to rotate until the incomplete gear 21 does not mesh with the rack 19, the connecting frame 5 and the screen plate 9 are reset under the reset action of the spring 24. This realizes the back-and-forth movement of the screen plate 9, improves the screening capacity of the screen plate 9, and prevents the connecting frame 5 from falling off the positioning rod 12 under the action of the baffle 13.

[0030] A positioning tube 23 is installed on the housing 1, arranged along the axial direction of the positioning rod 12. The positioning rod 12 is installed in the positioning tube 23 by threaded connection. This facilitates the installation and removal of the positioning rod 12 from the housing 1.

[0031] In this embodiment, a spraying mechanism is provided on the housing 1. Several connecting pipes 8 are installed above the sieve plate 9 inside the housing 1, arranged along the left-right direction of the housing 1. The ends of the connecting pipes 8 extending outside the housing 1 are connected to a water source. Water pipes 11, arranged along the length of the connecting pipes 8, are installed at the ends of the connecting pipes 8 extending into the housing 1. The inlet end of the water pipe 11 is connected to a water source, and the outlet end of the water pipe 11 extends into the housing 1. Spray nozzles 18 are evenly installed on the sidewalls of the water pipes 11 along their length. This allows the spray nozzles 18 to be evenly arranged above the sieve plate 9, and to spray water evenly onto the sieve plate 9, preventing concrete slurry from remaining on the sand and gravel, causing the sand and gravel falling from the first discharge port to adhere, and also preventing concrete slurry from solidifying on the sieve plate 9 and affecting its screening capacity.

[0032] In this embodiment, a conveying pipe 3 is installed on the fixed bracket 2 below the housing 1. A second inlet 14 is provided on the conveying pipe 3 at a position corresponding to the second outlet 7. The end of the conveying pipe 3 extends outside the housing 1. A third outlet 15 is provided on the end of the conveying pipe 3 away from the fixed bracket 2. A motor housing 4 is installed at the end of the conveying pipe 3. A second drive motor 17 is installed inside the motor housing 4. A screw rod 16 arranged along the axis of the conveying pipe 3 is installed at the output end of the second drive motor 17. Thus, when the second drive motor 17 is running, it can drive the screw rod 16 to rotate. During the rotation of the screw rod 16, it can drive the concrete slurry that falls into the conveying pipe 3 from the second inlet 14 to move inside the conveying pipe 3 and fall out from the third outlet 15, thereby transporting the concrete slurry to the outside of the fixed bracket 2.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sand and gravel concrete separation mechanism, characterized in that: have: Fixed bracket (2); The shell (1) is installed on the fixed bracket (2). The shell (1) is provided with a first feed port (6). The shell (1) is provided with a screen plate (9). The screen plate (9) can screen the sand and gravel concrete entering from the first feed port (6), so that the sand and gravel are on the screen plate (9) and the concrete slurry falls from the screen plate (9). The shell (1) is provided with a first discharge port above the screen plate (9) on the side wall. The shell (1) is provided with a second discharge port (7) at the bottom. The drive mechanism is installed on the housing (1) and can drive the screen plate (9) to move; The spraying mechanism is installed on the housing (1) and can spray water onto the screen plate (9).

2. The sand and gravel concrete separation mechanism according to claim 1, characterized in that: The first feed inlet (6) is located at the front side of the top of the shell (1), the screen plate (9) is arranged at an inclination, the first end of the screen plate (9) near the front side of the shell (1) is higher than the second end of the screen plate (9) near the rear side of the shell (1), and the first discharge port is located at the rear side of the shell (1).

3. The sand and gravel concrete separation mechanism according to claim 2, characterized in that: The housing (1) has mounting holes at positions corresponding to the first end of the sieve plate (9). A connecting frame (5) is installed at the first end of the sieve plate (9). The connecting frame (5) extends out of the housing (1) through the mounting holes. A fixing plate (10) is installed at the second end of the sieve plate (9). The fixing plate (10) extends out of the housing (1) through the first discharge port. The driving mechanism can drive the connecting frame (5), the sieve plate (9) and the fixing plate (10) to move along the front and back direction of the housing (1).

4. The sand and gravel concrete separation mechanism according to claim 3, characterized in that: The drive mechanism has a first drive motor (20) mounted on the housing (1), an incomplete gear (21) mounted at the end of the first drive motor (20), a rack (19) arranged along the moving direction of the screen plate (9) mounted on the connecting frame (5), the rack (19) can mesh with the incomplete gear (21), a positioning rod (12) mounted on the housing (1) along the moving direction of the screen plate (9), the positioning rod (12) passes through the connecting frame (5), the positioning rod (12) and the connecting frame (5) can slide relative to each other, a baffle (13) is mounted on the end of the positioning rod (12) that extends out of the connecting frame (5), and a spring (24) is fitted on the positioning rod (12) between the housing (1) and the connecting frame (5).

5. The sand and gravel concrete separation mechanism according to claim 4, characterized in that: A positioning tube (23) is installed on the housing (1) along the axial direction of the positioning rod (12), and the positioning rod (12) is installed inside the positioning tube (23).

6. The sand and gravel concrete separation mechanism according to claim 1, characterized in that: The bottom of the shell (1) is provided with a slope that slopes from the rear side of the shell (1) to the front side of the shell (1), and the second discharge port (7) is arranged at the bottom of the slope.

7. The sand and gravel concrete separation mechanism according to claim 1, characterized in that: A conveying pipe (3) is installed on the fixed bracket (2) at a position below the housing (1). A second inlet (14) is provided on the conveying pipe (3) at a position corresponding to the second outlet (7). The end of the conveying pipe (3) extends out of the housing (1). A third outlet (15) is provided on the end of the conveying pipe (3) away from the fixed bracket (2). A conveying mechanism is provided inside the conveying pipe (3).

8. The sand and gravel concrete separation mechanism according to claim 7, characterized in that: The conveying mechanism has a motor housing (4) arranged at the end of the conveying pipe (3), and a second drive motor (17) is installed in the motor housing (4). A screw rod (16) arranged along the axis of the conveying pipe (3) is installed at the output end of the second drive motor (17).

9. The sand and gravel concrete separation mechanism according to claim 1, characterized in that: The spraying mechanism has a water pipe (11), the inlet end of the water pipe (11) is connected to a water source, the outlet end of the water pipe (11) extends into the housing (1), and a nozzle (18) is installed at the outlet end of the water pipe (11).

10. The sand and gravel concrete separation mechanism according to claim 9, characterized in that: A connecting pipe (8) is installed above the sieve plate (9) inside the shell (1) and arranged in the left and right direction of the shell (1). The end of the water pipe (11) inside the shell (1) is installed on the connecting pipe (8) along the length direction of the connecting pipe (8). The nozzle (18) is installed on the side wall of the water pipe (11) along the length direction of the water pipe (11).

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