Efficient sorting device for recycled concrete aggregate

Abstract

The utility model discloses an efficient sorting device for recycled concrete aggregate. The efficient sorting device comprises a shell, a first-stage crushing and sorting mechanism, a second-stage crushing and sorting mechanism and a third-stage crushing and sorting mechanism are sequentially mounted in the shell from top to bottom; the first-stage crushing and sorting mechanism and the second-stage crushing and sorting mechanism are the same in structure. The device has the advantages that coarse aggregate and fine aggregate can be quickly separated, so that cost is reduced, efficiency is increased, and the device is suitable for increasing the mix proportion of recycled concrete.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of recycled concrete, more specifically, the utility model relates to a recycled concrete aggregate efficient sorting device. BACKGROUND

[0002] With the development of the construction industry, more and more early building structures need to be renovated and rebuilt, at the same time, a large amount of construction waste is also derived, among which the concrete structure construction waste is the most common. At present, the regeneration of concrete construction waste is mostly crushed and filtered, and then directly put into the new concrete production line. Due to the certainty of its components, the aggregate mixing ratio in the concrete cannot be accurately controlled, which is an important factor leading to the substandard strength of recycled concrete. Therefore, a screening device capable of quickly separating coarse aggregate and fine aggregate is urgently needed for concrete recycling. SUMMARY

[0003] The utility model aims at providing a recycled concrete aggregate efficient sorting device, which can accurately separate coarse aggregate and fine aggregate during the concrete recycling process.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a recycled concrete aggregate efficient sorting device comprises a shell, a first-stage crushing and sorting mechanism, a second-stage crushing and sorting mechanism and a third-stage crushing and sorting mechanism are sequentially installed in the shell from top to bottom, the first-stage crushing and sorting mechanism and the second-stage crushing and sorting mechanism are the same in structure,

[0005] The first-stage crushing and sorting mechanism comprises a hopper, a crushing mechanism and a first screening mechanism, the crushing mechanism is located below the hopper discharge port, and the first screening mechanism is located below the crushing mechanism,

[0006] The third-stage crushing and sorting mechanism comprises a hopper, a crushing mechanism, a first screening mechanism and a second screening mechanism, the crushing mechanism is located below the hopper discharge port, the first screening mechanism is located below the crushing mechanism, and the second screening mechanism is located below the first screening mechanism,

[0007] The oversize material of the first screening mechanism of the first-stage crushing and sorting mechanism enters the hopper of the second-stage crushing and sorting mechanism, and the undersize material of the first screening mechanism of the first-stage crushing and sorting mechanism is guided out through the material guiding mechanism,

[0008] The oversize material of the first screening mechanism of the second-stage crushing and sorting mechanism enters the hopper of the third-stage crushing and sorting mechanism, and the undersize material of the first screening mechanism of the second-stage crushing and sorting mechanism is guided out through the material guiding mechanism,

[0009] The oversize of the first screening mechanism of the tertiary crushing and sorting mechanism enters a coarse aggregate collecting tank through a material guiding mechanism, the undersize of the first screening mechanism enters a second screening mechanism, and the oversize of the second screening mechanism enters a fine aggregate collecting tank through a material guiding mechanism.

[0010] As a further scheme of the utility model, the hopper is a conical structure.

[0011] As a further scheme of the utility model, the crushing mechanism is a crusher.

[0012] As a further scheme of the utility model, the crushing mechanism comprises four crushing rollers and a driving mechanism, two crushing rollers are a crushing roller assembly, two crushing roller assemblies are arranged in an upper and lower interval mode, and the driving mechanism drives the crushing rollers to rotate.

[0013] As a further scheme of the utility model, the interval of the two crushing rollers in the crushing roller assembly of the crushing mechanism of the primary crushing and sorting mechanism is greater than that of the two crushing rollers in the crushing roller assembly of the crushing mechanism of the secondary crushing and sorting mechanism, and the interval of the two crushing rollers in the crushing roller assembly of the crushing mechanism of the secondary crushing and sorting mechanism is greater than that of the two crushing rollers in the crushing roller assembly of the crushing mechanism of the tertiary crushing and sorting mechanism.

[0014] As a further scheme of the utility model, a rack is arranged on the shell body and used for fixing the primary crushing and sorting mechanism, the secondary crushing and sorting mechanism and the tertiary crushing and sorting mechanism.

[0015] As a further scheme of the utility model, the first screening mechanism and the second screening mechanism are both inclined vibrating screens.

[0016] The regenerative concrete aggregate high-efficiency sorting device has the advantages that separation effect is good, coarse aggregate and fine aggregate are finely separated through multi-stage filtering and screening, separation time is shortened, and separation is automatically performed without manual adjustment.

[0017] Other advantages, objects and features of the utility model will be embodied in part by the following description, and will be understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is a structural schematic view of the regenerative concrete aggregate high-efficiency sorting device of the utility model;

[0019] Fig. 2 is an interval d schematic view of the two crushing rollers in a crushing roller assembly of the utility model.

[0020] Among them, 1-frame, 2-first-stage crushing and sorting mechanism, 3-second-stage crushing and sorting mechanism, 4-third-stage crushing and sorting mechanism, 5-hopper, 6-crushing mechanism, 7-first screening mechanism, 8-second screening mechanism, 9-material guiding mechanism, 10-drive mechanism. Detailed Implementation

[0021] The present invention will now be described in detail and completely with reference to the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention with reference to the accompanying drawings, it should be particularly noted that the technical solutions and features provided in the various parts of the present invention, including the following description, can be combined with each other without conflict.

[0022] Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the protection scope of the present invention.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific implementation process is as follows:

[0024] Aggregates are generally harder than other materials in concrete. Aggregates are one of the main components of concrete, primarily composed of sand and gravel, and their hardness is typically higher than that of cement paste. Based on this characteristic, for example... Figs. 1-2 As shown, this utility model provides a high-efficiency sorting device for recycled concrete aggregate, comprising: a shell; a primary crushing and sorting mechanism, a secondary crushing and sorting mechanism, and a tertiary crushing and sorting mechanism are installed sequentially from top to bottom inside the shell; the primary crushing and sorting mechanism and the secondary crushing and sorting mechanism have the same structure;

[0025] The primary crushing and sorting mechanism includes a hopper, a crushing mechanism, and a first screening mechanism. The crushing mechanism is located below the hopper outlet, and the first screening mechanism is located below the crushing mechanism.

[0026] The three-stage crushing and sorting mechanism includes a hopper, a crushing mechanism, a first screening mechanism, and a second screening mechanism. The crushing mechanism is located below the hopper outlet, the first screening mechanism is located below the crushing mechanism, and the second screening mechanism is located below the first screening mechanism.

[0027] Among them, the oversize material from the first screening mechanism of the primary crushing and sorting mechanism enters the hopper of the secondary crushing and sorting mechanism, and the undersize material from the first screening mechanism of the primary crushing and sorting mechanism is discharged through the material guiding mechanism.

[0028] The oversize of the first screening mechanism of the secondary crushing and sorting mechanism enters a hopper of the tertiary crushing and sorting mechanism, and the undersize of the first screening mechanism of the secondary crushing and sorting mechanism is guided out through a material guiding mechanism.

[0029] The oversize of the first screening mechanism of the tertiary crushing and sorting mechanism enters a coarse aggregate collecting tank through a material guiding mechanism, the undersize of the first screening mechanism enters a second screening mechanism, and the oversize of the second screening mechanism enters a fine aggregate collecting tank through a material guiding mechanism.

[0030] The present efficient recycled concrete aggregate sorting device is composed of a primary crushing combined with a primary screening, a secondary crushing combined with a secondary screening, and a tertiary crushing combined with a tertiary screening. The multistage crushing and screening can strip the recycled concrete layer by layer, strip the aggregate from the concrete, and finally realize the separation of coarse and fine aggregates of the recycled concrete. The cost is reduced, the aggregate is quickly separated, the mixing ratio can be accurately controlled during the recycling process, and the strength of the recycled concrete is improved. The undersize of the first screening mechanism of the primary crushing and sorting mechanism, the undersize of the first screening mechanism of the secondary crushing and sorting mechanism, and the undersize of the second screening mechanism of the tertiary crushing and sorting mechanism are other materials of the cement slurry, which can be finally recycled.

[0031] The present technical solution can also include the following technical details to better achieve the technical effect: the hopper is a conical structure.

[0032] The present technical solution can also include the following technical details to better achieve the technical effect: the crushing mechanism is a crusher.

[0033] The present technical solution can also include the following technical details to better achieve the technical effect: the crushing mechanism includes four crushing rollers and a driving mechanism, two crushing rollers are a crushing roller assembly, two crushing roller assemblies are arranged in an upper and lower interval, and the driving mechanism drives the crushing rollers to rotate. The crushing rollers can be directly driven to rotate by a motor and a speed reducer. In another embodiment, a crushing roller assembly can also drive two crushing rollers to rotate simultaneously by combining a motor and a transmission mechanism.

[0034] The present technical solution can also include the following technical details to better achieve the technical effect: the distance d between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the primary crushing and sorting mechanism is greater than that between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the secondary crushing and sorting mechanism; the distance between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the secondary crushing and sorting mechanism is greater than that between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the tertiary crushing and sorting mechanism. The recycled concrete block is initially a large block, which is crushed into a small block structure by the primary crushing and sorting mechanism and the secondary crushing and sorting mechanism, and finally the coarse aggregate, fine aggregate, and other concrete powder of the recycled concrete block are separated by the tertiary crushing and sorting mechanism.

[0035] The technical scheme can further include the following technical details to better achieve the technical effects: the shell is provided with a rack for fixing the first, second and third crushing and sorting mechanisms.

[0036] The technical scheme can further include the following technical details to better achieve the technical effects: the first and second screening mechanisms are both inclined vibrating screens. In the embodiment, the screen slope rates of the first and second screening mechanisms are both set to 10%. The screen mesh diameters of the first and second crushing and sorting mechanisms are set to be smaller than the diameter of the fine aggregate, so that the coarse aggregate and the fine aggregate are both above the screen mesh of the first and second crushing and sorting mechanisms. The screen mesh diameter of the first screening mechanism of the third crushing and sorting mechanism is set to be not larger than the particle size of the coarse aggregate (the particle size is greater than 5 mm), and the screen mesh diameter of the second screening mechanism is set to be not larger than the particle size of the fine aggregate (the particle size is less than 5 mm and greater than 0.16 mm).

[0037] Although the embodiments of the present application have been disclosed as above, it is not limited to the application and implementation as listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the embodiments shown and described herein.

Claims

1. A high-efficiency sorting device for recycled concrete aggregate, characterized in that, The utility model relates to a three-stage crushing and screening device, comprising: a housing; a first-stage crushing and screening mechanism, a second-stage crushing and screening mechanism and a third-stage crushing and screening mechanism are sequentially arranged in the housing from top to bottom; the first-stage crushing and screening mechanism and the second-stage crushing and screening mechanism have the same structure; the first-stage crushing and screening mechanism comprises a hopper, a crushing mechanism and a first screening mechanism, the crushing mechanism is arranged below the discharge port of the hopper, and the first screening mechanism is arranged below the crushing mechanism; the third-stage crushing and screening mechanism comprises a hopper, a crushing mechanism, a first screening mechanism and a second screening mechanism, the crushing mechanism is arranged below the discharge port of the hopper, the first screening mechanism is arranged below the crushing mechanism, and the second screening mechanism is arranged below the first screening mechanism; the oversize of the first screening mechanism of the first-stage crushing and screening mechanism enters the hopper of the second-stage crushing and screening mechanism, and the undersize of the first screening mechanism of the first-stage crushing and screening mechanism is guided out through a material guiding mechanism; the oversize of the first screening mechanism of the second-stage crushing and screening mechanism enters the hopper of the third-stage crushing and screening mechanism, and the undersize of the first screening mechanism of the second-stage crushing and screening mechanism is guided out through a material guiding mechanism; 2. The high efficiency sorting device for recycled concrete aggregates as claimed in claim 1, wherein, the oversize of the first screening mechanism of the third-stage crushing and screening mechanism enters the coarse aggregate collecting tank through a material guiding mechanism, the undersize of the first screening mechanism enters the second screening mechanism, and the oversize of the second screening mechanism enters the fine aggregate collecting tank through a material guiding mechanism.

3. The high efficiency sorting device for recycled concrete aggregates as claimed in claim 1, wherein, The hopper has a conical structure.

4. The high efficiency sorting device for recycled concrete aggregates as claimed in claim 3, wherein, The crushing mechanism is a crusher.

5. The high efficiency sorting device for recycled concrete aggregates as claimed in claim 4, wherein, The crushing mechanism comprises four crushing rollers and a driving mechanism, two crushing rollers form a crushing roller assembly, two crushing roller assemblies are arranged in an upper and lower spaced mode, and the driving mechanism drives the crushing rollers to rotate.

6. The high efficiency sorting device for recycled concrete aggregates of claim 1, wherein, The distance between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the first-stage crushing and screening mechanism is greater than that between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the second-stage crushing and screening mechanism, and the distance between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the second-stage crushing and screening mechanism is greater than that between the two crushing rollers in a crushing roller assembly of the crushing mechanism of the third-stage crushing and screening mechanism.

7. The high efficiency sorting device for recycled concrete aggregates of claim 1, wherein, A rack is arranged on the housing and used for fixing the first-stage crushing and screening mechanism, the second-stage crushing and screening mechanism and the third-stage crushing and screening mechanism. Both the first screening mechanism and the second screening mechanism are inclined vibrating screens.

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