Concrete waste slurry coarse aggregate sorting device

Abstract

The application relates to the technical field of concrete manufacturing, in particular to a concrete waste slurry coarse aggregate sorting device. The device comprises a spiral sorting unit, the spiral sorting unit comprises at least three sorting areas, the pitches of the spiral sorting units in a single sorting area are equal, the pitches in the three sorting areas are sequentially increased, both ends of the spiral sorting unit are provided with end plates fixedly connected with the spiral sorting unit, the middle part of the end plate is provided with a rotating shaft, the outer side of the rotating shaft is symmetrically provided with a mounting bracket, the rotating shaft is rotationally connected to the mounting bracket, and the end plate close to the small-pitch end is provided with a feeding port for injecting waste slurry into the spiral sorting unit. The technical scheme is used to solve the problem that the waste treatment device in the prior art cannot screen the coarse aggregates with different particle sizes in the concrete waste slurry, thereby leading to poor treatment effect of the concrete waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete manufacturing, and particularly relates to a concrete waste slurry coarse aggregate sorting device. BACKGROUND

[0002] The concrete waste slurry refers to a mixture of waste concrete and waste water for cleaning a mixer and a transport vehicle generated in the process of producing concrete in a concrete mixing station, and the waste concrete and the waste water are separated by a concrete waste slurry separation device and reused subsequently.

[0003] The waste slurry separation device in the prior art usually adopts a simple filter device composed of filter plates to realize solid-liquid separation of the waste slurry, but the solid aggregate separated in use contains coarse aggregate and fine aggregate with different particle sizes, and the proportion of the aggregate with different particle sizes cannot be determined, and the different aggregate proportions in concrete manufacturing should be relatively accurate to produce high-quality concrete, so the waste slurry separation device in the prior art has poor effect in actual use. SUMMARY

[0004] In view of the above technical problems, the present application aims to provide a concrete waste slurry coarse aggregate sorting device to solve the problem that the waste slurry separation device in the prior art cannot screen the coarse aggregate with different particle sizes in the concrete waste slurry, resulting in poor treatment effect of the concrete waste slurry.

[0005] To achieve the above-mentioned purposes, the technical scheme adopted by the present application is as follows:

[0006] The concrete waste slurry coarse aggregate sorting device comprises a spiral sorting unit, the spiral sorting unit comprises at least three sorting areas, the pitch of part of the spiral sorting units in a single sorting area is equal, and the pitch in the three sorting areas increases sequentially, both ends of the spiral sorting unit are provided with end plates fixedly connected thereto, the middle part of the end plate is provided with a rotating shaft, the outer side of the rotating shaft is symmetrically provided with a mounting bracket, the rotating shaft is rotatably connected to the mounting bracket, and the end plate close to the small-pitch end is provided with a feed inlet for injecting waste slurry into the spiral sorting unit.

[0007] The working principle of the technical scheme is as follows:

[0008] After the concrete waste slurry is injected into the spiral sorting unit, the liquid in the waste slurry is discharged from the gap of the spiral unit, and the solid moves from the small-pitch end to the large-pitch end under the rotation of the spiral sorting unit, and the coarse aggregate with different particle sizes will fall out from different sorting areas in the movement process, so as to realize the purpose of separately screening and collecting the coarse aggregate according to the particle size.

[0009] Further limited, the driving unit is arranged on the rotating shaft of the large pitch end, which has the advantage that the small pitch end is injected with concrete waste slurry, avoiding interference.

[0010] Further limited, the driving unit is arranged on the rotating shaft of the large pitch end, which has the advantage that the small pitch end is injected with concrete waste slurry, avoiding interference.

[0011] Further limited, the spiral sorting unit is arranged obliquely, and the large pitch end of the spiral sorting unit is arranged higher than the horizontal plane, which has the advantage that oblique arrangement can reduce the normal pressure between the coarse aggregate and the spiral sorting unit, that is, reduce the friction between the coarse aggregate and the spiral sorting unit, that is, slow down the speed of the larger coarse aggregate moving to the large pitch end, that is, increase the number of turns of the coarse aggregate in the spiral sorting unit, that is, improve the separation effect of the small aggregate and the large aggregate, that is, reduce the problem of small materials being carried by the large aggregate to the large pitch end.

[0012] Further limited, the mounting plate is arranged between the mounting frames, the two ends of the mounting plate are fixed on the mounting frames, and the mounting plate is located directly below the spiral sorting unit, the mounting plate is provided with a number of collecting nets corresponding to the number of sorting areas, and each collecting net corresponds to a single sorting area, which has the advantage of improving the collecting effect of the coarse aggregate after sorting, reducing the labor intensity of later collection.

[0013] Further limited, the mounting plate is provided with a number of vibrating plates, the vibrating plates are provided with a number of protrusions, and the protrusions are in close contact with the spiral sorting unit, which has the advantage that when the spiral sorting unit rotates, part of the spiral sorting unit will be extruded by the protrusions, causing deformation, when the deformation force is large or the protrusions are separated, the deformed part will rebound to the original position, causing the spiral sorting unit to vibrate, and the coarse aggregate blocked in the spiral sorting unit is discharged under the action of vibration.

[0014] Further limited, the width of the vibrating plate is greater than the pitch of the corresponding spiral sorting unit directly above the mounting position, which has the advantage of improving the contact effect between the protrusions on the vibrating plate and the spiral sorting unit during rotation.

[0015] Further limited, the spiral sorting unit is arranged upwardly curved, which has the advantage that the upper spiral pitch is always larger than the lower spiral pitch due to the characteristics of the spiral sorting unit, so if the coarse aggregate with large size difference at both ends is jammed in the spiral sorting unit, it is difficult to discharge, so it will rotate to the upper part with the spiral sorting unit, that is, the lower spiral sorting unit rotates to the upper part, the pitch will increase, that is, the jammed coarse aggregate will be separated, further improving the anti-blocking effect.

[0016] Further limited, the interior of the spiral sorting unit is provided with a bending element, the bending element includes an arc-shaped middle part for shaping the spiral sorting unit, and a fixed part provided at both ends of the arc-shaped middle part, the arc-shaped middle part abuts on the inner side of the upper part of the spiral sorting unit, and the fixed parts extend to the outer side of the rotating shaft through the middle part of the rotating shaft and are fixed on the mounting frame.

[0017] Further limited, the bending element is made of a tubular element, which has the advantage of reducing contact resistance and improving the rotating effect of the spiral sorting unit.

[0018] The technical effects achieved by the present application are as follows:

[0019] (1) The spiral sorting unit is provided, which can realize solid-liquid separation in waste pulp and can classify and screen coarse aggregates in the waste pulp according to particle size; (2) The vibration plate and the protrusion are provided, which can make the spiral sorting unit vibrate when it is deformed and reset during rotation, so that part of the coarse aggregate blocked in the pitch width of the spiral sorting unit can be shaken out, improving the anti-blocking effect; (3) The spiral sorting unit is bent upward, due to the characteristics of the spiral sorting unit, the upper pitch is always greater than the lower pitch during rotation, so if coarse aggregate with large size difference at both ends is jammed in the spiral sorting unit, such coarse aggregate will rotate to the upper part along with the spiral sorting unit, that is, when the lower part of the spiral sorting unit rotates to the upper part, the pitch will increase, so that the jammed coarse aggregate can be separated, further improving the anti-blocking effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a three-dimensional installation schematic view of the spiral sorting unit of the sorting device;

[0021] Figure 2 is a planar installation schematic view of the sorting device;

[0022] Figure 3 is a three-dimensional schematic view of the spiral sorting unit of the sorting device;

[0023] Figure 4 is a planar installation schematic view of the spiral sorting unit of the sorting device.

[0024] Spiral sorting unit 1, end plate 2, rotating shaft 3, mounting frame 4, collection net bag 5, mounting plate 6, vibration plate 7, protrusion 8, belt pulley 9, drive belt 10, drive motor 11, bending element 12, fixed support 13. DETAILED DESCRIPTION

[0025] The following will be further described in detail through specific embodiments:

[0026] As Figures 1-4As shown, the concrete waste slurry coarse aggregate sorting device comprises a spiral sorting unit 1, in the specific embodiment, the spiral sorting unit 1 is preferably a variable pitch spring, the spiral sorting unit 1 comprises at least three sorting areas, the pitch of the part of the spiral sorting unit 1 in a single sorting area is equal, and the pitch in the three sorting areas increases in turn, both ends of the spiral sorting unit 1 are provided with an end plate 2 fixedly connected thereto, the middle part of the end plate 2 is provided with a rotating shaft 3, the outer side of the rotating shaft 3 is symmetrically provided with a mounting bracket 4, the rotating shaft 3 is rotatably connected to the mounting bracket 4, and the end plate 2 close to the small pitch end is provided with a feed inlet for injecting waste slurry into the spiral sorting unit 1. It is not difficult to understand that the specific embodiment should also include a control system and a driving mechanism, the control system is a mature prior art, and will not be described in detail here, the driving unit mainly comprises a belt pulley 9, a driving belt 10 and a driving motor 11, the belt pulley 9 is arranged on one end of the rotating shaft 3 of the spiral sorting unit 1 and the output end of the driving motor 11, and the driving belt 10 is wound on the belt pulley 9. Preferably, the driving unit is arranged on the rotating shaft 3 at the side of the large pitch end, so that the concrete waste slurry is injected into the small pitch end to avoid interference.

[0027] The working principle of the technical solution is as follows:

[0028] After the concrete waste slurry is injected into the spiral sorting unit 1, the liquid in the waste slurry is discharged from the gap of the spiral unit, and under the rotation of the spiral sorting unit 1, the solid moves from the small pitch end to the large pitch end. In the process of movement, the solid coarse aggregate of different particle sizes will fall out from different sorting areas, so as to realize the purpose of separately screening and collecting the coarse aggregate according to the particle size.

[0029] The spiral sorting unit 1 is arranged obliquely, and the large pitch end of the spiral sorting unit 1 is arranged higher than the horizontal plane. The oblique arrangement can reduce the normal pressure between the coarse aggregate and the spiral sorting unit 1, that is, reduce the friction between the coarse aggregate and the spiral sorting unit 1, that is, slow down the speed of the larger coarse aggregate moving to the large pitch end, that is, increase the number of turns of the coarse aggregate rotating in the spiral sorting unit 1, that is, improve the separation effect of the small aggregate and the large aggregate, and that is, reduce the problem that the small material is carried to the large pitch end by the large aggregate.

[0030] The mounting plates 6 are arranged between the mounting brackets 4, the two ends of the mounting plate 6 are fixed to the mounting bracket 4, and the mounting plate 6 is located directly below the spiral sorting unit 1. The mounting plate 6 is provided with a collecting net bag 5 corresponding to the number of sorting areas, and a single collecting net bag 5 is arranged one by one corresponding to a single sorting area. The collecting effect after the coarse aggregate is sorted is improved, and the labor intensity of later collection is reduced.

[0031] The mounting plate 6 is provided with a plurality of vibration plates 7, and the vibration plates 7 are provided with a plurality of protrusions 8, which are in close contact with the spiral sorting unit 1. When the spiral sorting unit 1 rotates, part of the spiral sorting unit 1 will be extruded by the protrusions 8, and deformation will be generated. When the deformation force is large or the protrusions 8 are separated, the deformed part will rebound to the original position. Even if the spiral sorting unit 1 shakes, the coarse aggregate blocked in the spiral sorting unit 1 will be discharged under the action of vibration. Preferably, the width of the vibration plate 7 is greater than the pitch of the corresponding spiral sorting unit 1 directly above the installation position of the vibration plate 7, so as to improve the contact effect between the protrusions 8 on the vibration plate 7 and the spiral sorting unit 1 during rotation.

[0032] The spiral sorting unit 1 is arranged to be curved upward. It is not difficult to understand that the curved arrangement can be achieved by giving the spiral sorting unit 1 a bending moment that is always upward (similar to the distribution of force when bending an arm). Therefore, due to the characteristics of the spiral sorting unit 1, the upper pitch is always greater than the lower pitch during rotation. Therefore, if coarse aggregate with a large size difference between the two ends is blocked in the spiral sorting unit 1, it is difficult to discharge such coarse aggregate, and it will rotate with the spiral sorting unit 1 to the upper part. When the lower part of the spiral sorting unit 1 rotates to the upper part, the pitch will increase, so that the blocked coarse aggregate can be separated, and the anti-blocking effect is further improved.

[0033] Preferably, the specific way of the curved arrangement can be that the spiral sorting unit 1 is provided with a bending element 12. The bending element 12 includes an arc-shaped middle part for shaping the spiral sorting unit 1, and fixed parts arranged at both ends of the arc-shaped middle part. The arc-shaped middle part abuts the inner side surface of the upper part of the spiral sorting unit 1, and the fixed parts extend to the outer side of the shaft 3 through the middle part of the shaft 3, respectively. The fixed parts are fixed to the fixed frame 4 through a fixed support 13. Such a setting mode enables the two end shafts 3 to be arranged horizontally, which can improve the rotation effect. If the bending moment is used, the two end shafts 3 will be arranged obliquely downward when the moment is applied, which will result in poor rotation effect. At the same time, preferably, the bending element 12 is made of a tubular element, which can reduce the contact resistance and improve the rotation effect of the spiral sorting unit 1.

[0034] It should be pointed out in advance that, in the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication between the two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] The above-mentioned are only embodiments of the present application, and the common knowledge of specific structures and characteristics in the scheme is not described too much. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope claimed in this application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A concrete waste slurry coarse aggregate sorting device, characterised in that, The application relates to a spiral sorting unit, which comprises at least three sorting areas, the pitch of the partial spiral sorting units in a single sorting area is equal, the pitch in the three sorting areas is sequentially increased, both ends of the spiral sorting unit are provided with end plates fixedly connected therewith, the middle part of the end plate is provided with a rotating shaft, the outer side of the rotating shaft is symmetrically provided with mounting racks, the rotating shaft is rotationally connected to the mounting racks, the end plate close to the small-pitch end is provided with a feeding port for injecting waste slurry into the spiral sorting unit, and the spiral sorting unit is upwardly curved.

2. The concrete waste slurry coarse aggregate sorting device of claim 1, wherein, The application further relates to a driving unit, which comprises a belt pulley, a driving belt and a driving motor, the rotating shaft at one end of the spiral sorting unit and the output end of the driving motor are both provided with belt pulleys, and the driving belt is wound on the belt pulleys.

3. The concrete waste slurry coarse aggregate sorting device of claim 2, wherein, The driving unit is arranged on the rotating shaft at the large-pitch end.

4. The concrete waste slurry coarse aggregate sorting device of claim 1, wherein, The spiral sorting unit is arranged in an inclined mode, and the large-pitch end of the spiral sorting unit is arranged to be higher than the horizontal plane.

5. The concrete waste slurry coarse aggregate sorting device of claim 1, wherein, The mounting racks are provided with mounting plates, the two ends of the mounting plates are fixed to the mounting racks, the mounting plates are located directly below the spiral sorting unit, the mounting plates are provided with collecting net bags in the same number as the sorting areas, and a single collecting net bag is arranged in one-to-one correspondence with a single sorting area.

6. The concrete waste slurry coarse aggregate sorting device of claim 5, wherein, The mounting plates are provided with a plurality of vibrating plates, the vibrating plates are provided with a plurality of protrusions, and the protrusions are in close contact with the spiral sorting unit.

7. The concrete waste slurry coarse aggregate sorting device of claim 6, wherein, The width of the vibrating plate is greater than the pitch of the corresponding spiral sorting unit directly above the mounting position of the vibrating plate.

8. The concrete waste slurry coarse aggregate sorting device of claim 1, wherein, The spiral sorting unit is internally provided with a bending element, the bending element comprises an arc-shaped middle part for shaping the spiral sorting unit and fixing parts arranged at the two ends of the arc-shaped middle part, the arc-shaped middle part abuts against the inner side of the upper part of the spiral sorting unit, and the fixing parts respectively extend through the middle part of the rotating shaft to the outer side of the rotating shaft and are fixed to the mounting racks.

9. The concrete waste slurry coarse aggregate sorting device of claim 8, wherein, The bending element is made of a tubular element.

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