Waste concrete separation equipment for concrete processing

By designing a rotary screening system consisting of a screening cylinder and guide vanes, the problems of incomplete separation of sand and stones and equipment instability in existing equipment have been solved, achieving efficient and stable sand and stone separation and improving safety, while reducing labor costs and dust pollution.

CN121755419APending Publication Date: 2026-03-31CHONGQING ZHONGZHOU MANZI BUILDING MATERIALS GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing waste concrete separation equipment is prone to clogging of the filter screen during the screening process, resulting in incomplete separation of sand and stones. The filter screen is also easily damaged, the separation is unstable, and dust is generated during the separation process, affecting air quality.

Method used

A waste concrete separation device for concrete processing was designed, comprising a screening cylinder, guide vanes, a gear ring, gears, and a drive unit. The separation of sand and stones is achieved through the rotational motion of the screening cylinder. The screening cylinder is set at a 10° angle with the base. The guide vanes are arranged symmetrically in pairs, with the screen holes located between the guide vanes. The gears drive the screening cylinder to rotate through the drive unit. A first receiving device is used to collect sand, and a second receiving device is used to collect stones. Protective and reinforcing mechanisms improve the stability and safety of the equipment.

Benefits of technology

It achieves stable separation of sand and stones, reduces screen clogging, improves the stability and safety of the separation equipment, reduces dust generation, lowers labor costs, and improves separation efficiency.

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Abstract

The invention relates to the technical field of waste concrete treatment, in particular to waste concrete separation equipment for concrete processing. Comprising a base, a supporting frame, a protective cover and a screening mechanism, the screening mechanism comprises a screening barrel, a flow guide piece, a side plate, a top plate, a gear ring, a gear, a first receiving device, a second receiving device and a driving device, waste is put into the screening barrel, and sand and stone can be separated through a screening hole part when the waste falls under the rotation effect of the screening barrel; according to the sand and stone separation device, when sand and stone are separated, the screening barrel is in a rotating state, screening hole blockage of a screening hole part is reduced, the stability is better during separation, and the sand and stone separation efficiency is improved. Therefore, the problem that existing waste concrete separation equipment is not beneficial to stable separation processing is solved.
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Description

Technical Field

[0001] This invention relates to the field of waste concrete treatment technology, and in particular to a waste concrete separation device for concrete processing. Background Technology

[0002] After the waste concrete is recycled, workers use shovels to throw it onto a tilted, upright wire mesh filter. Sand is filtered by the wire mesh and flies to the back side of the filter, while stones are blocked on the front side, thus separating the sand and stones from the waste concrete. However, this separation method is not only labor-intensive and inefficient, but also releases dust into the air during the process of throwing the waste concrete onto the tilted wire mesh, thus reducing air quality.

[0003] A search revealed that prior art CN218133217U discloses a waste concrete separation device for concrete processing, including a support frame and a conveying cylinder. The conveying cylinder is located on top of the support frame, and a fixed block is welded to one side of the conveying cylinder. A feed funnel is connected to one end of the top of the conveying cylinder, and a motor is fixedly connected to one side of the fixed block. This solution uses a motor drive shaft to rotate a screw rod. During rotation, the screw rod pours waste concrete from the feed funnel into the conveying cylinder and transports it out. As the screw rod transports the waste concrete inside the conveying cylinder, it is filtered by a filter screen. Sand in the waste concrete is filtered through the filter screen's holes into a U-shaped frame and discharged by the U-shaped frame, while stones are retained inside the conveying cylinder. This achieves the purpose of separating sand and stones from the waste concrete.

[0004] However, the above equipment has the following problems when in use: the filter screen is fixed at the bottom of the conveying cylinder. During the screening process, small stones are easy to clog the filter screen, resulting in incomplete separation of sand and stones. In addition, the filter screen is easily damaged by stones during feeding, which is not conducive to stable separation. Summary of the Invention

[0005] The purpose of this invention is to provide a waste concrete separation device for concrete processing, which solves the problem that existing waste concrete separation devices are not conducive to stable separation and processing.

[0006] To achieve the above objectives, the present invention provides a waste concrete separation device for concrete processing, including a base, on which a support frame and a protective cover are fixed, and a screening mechanism is also included. The screening mechanism includes a screening cylinder, guide vanes, side plates, a top plate, a gear ring, a gear, a first receiving device, a second receiving device, and a driving device. The screening cylinder is mounted on the base and the support frame via bearings, forming a 10° angle with the base. Four guide vanes are arranged inside, symmetrically in pairs and spaced apart in a line. The screening cylinder has screen holes in the area between the guide vanes. The side plates are detachably connected to the base and the support frame, and are symmetrically arranged. The top plate is mounted on the top of the support frame and the base. The gear ring is fixed on the screening cylinder, and the gear meshes with the gear ring and is driven to rotate by the driving device mounted on the support frame. The first receiving device is located below the screen holes, and the second receiving device is located at the bottom of the protective cover.

[0007] The first receiving device includes a receiving box and a handle. The receiving box is slidably connected to the base, the side plate, and the support frame, respectively. The handle is welded to the front side of the receiving box.

[0008] The receiving box can be supported by a support plate after it is pulled out, and the support plate is fixed on the base.

[0009] The second receiving device includes a receiving box and forklift legs. The receiving box is located below the outlet of the protective cover; the forklift legs are welded to the bottom of the receiving box.

[0010] The driving device includes a motor base and a drive motor. The motor base is fixed on the support frame. The drive motor is fixed on the motor base, and the gear is fixed on its output shaft.

[0011] The waste concrete separation equipment for concrete processing also includes a protective mechanism, which includes an annular cover and a protective plate. The annular cover is detachably connected to the support frame and is located outside the gear; the protective plate is detachably connected to the motor base and is located in front of the motor base.

[0012] The annular cover is also provided with a clearance cover, which is integrally formed with the annular cover and located outside the drive motor.

[0013] This invention discloses a waste concrete separation device for concrete processing. During processing, the drive device is first controlled to rotate the gear ring, thereby rotating the screening cylinder. Then, waste material is fed into the screening cylinder. Under the action of the rotating screening cylinder, the waste material falls through the screen holes, achieving separation of sand and stones. The sand falls into the first receiving device for centralized collection, while the stones are discharged through the screening cylinder and fall into the second receiving device for centralized collection. In this application, the screening cylinder is in a rotating state during the separation of sand and stones, which reduces the clogging of the screen holes and improves the stability of separation, thereby solving the problem that existing waste concrete separation equipment is not conducive to stable separation processing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of the waste concrete separation device for concrete processing according to the first embodiment of the present invention.

[0016] Figure 2 This is a cross-sectional view of the protective cover according to the first embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the flow guide plate according to the first embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the overall structure of the waste concrete separation device for concrete processing according to the second embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the overall structure of the waste concrete separation device for concrete processing according to the third embodiment of the present invention.

[0020] In the diagram: 101-base, 102-support frame, 103-protective cover, 104-screening cylinder, 105-guide vane, 106-side plate, 107-top plate, 108-gear ring, 109-gear, 110-screen hole section, 111-receiving box, 112-handle, 113-support plate, 114-receiving box, 115-forklift leg, 116-motor mount, 117-drive motor, 201-ring guard, 202-guard plate, 203-avoidance cover, 301-reinforcing frame, 302-threaded cylinder, 303-adjusting rod. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Example 1: like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of a waste concrete separation device used in concrete processing. Figure 2 This is a cross-sectional view of the protective shield. Figure 3 This is a schematic diagram of the guide vane structure. The present invention provides a waste concrete separation device for concrete processing: it includes a base 101, a support frame 102, a protective cover 103, and a screening mechanism. The screening mechanism includes a screening cylinder 104, a guide vane 105, a side plate 106, a top plate 107, a gear ring 108, a gear 109, a first receiving device, a second receiving device, and a driving device. The first receiving device includes a receiving box 111 and a handle 112; the second receiving device includes a receiving box 114 and forklift legs 115; and the driving device includes a motor base 116 and a drive motor 117. The aforementioned solution solves the problem of unstable separation processing in existing waste concrete separation equipment. It is understood that the aforementioned solution can improve the stability of the equipment's screening operation.

[0023] In this embodiment, a support frame 102 and a protective cover 103 are fixed on the base 101. The support frame 102 and the protective cover 103 can be fixed by positioning pins and bolts, respectively. The base 101 is provided with fixing ears, and the equipment can be fixed to the ground by anchor bolts. In addition, the circuits, electronic components and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this invention does not involve the improvement of software and methods.

[0024] The screening cylinder 104 is mounted on the base 101 and the support frame 102 via bearings, forming a 10° angle with the base 101. It contains four guide vanes 105 arranged symmetrically in pairs with a single-line spacing. The screening cylinder 104 has screen holes 110 in the area between the guide vanes 105. Side plates 106 are detachably connected to the base 101 and the support frame 102, and are symmetrically arranged. A top plate 107 is mounted on the top of the support frame 102 and the base 101. A gear ring 108 is fixed to the screening cylinder 104. A gear 109 meshes with the gear ring 108 and is driven to rotate by a drive device mounted on the support frame 102. A first receiving device is located below the screen holes 110, and a second receiving device is located at the bottom of the protective cover 103. The mounting ends on both sides of the screening cylinder 104 are respectively mounted on the support plate on the right side of the base 101 and the support frame 102 via rotating bearings of corresponding sizes. Multiple guide vanes 105 are welded inside the screening cylinder 104. The arc-shaped guide portions of the guide vanes 105 are positioned towards the discharge direction of the screening cylinder 104 to prevent discharge blockage and facilitate the impact and shaking off of surface sand by waste material inside, while also slowing down the discharge speed of crushed waste. The screen holes 110 are used for sand drop to achieve screening. The side plates 106 and the top plate 107 are respectively fixed with bolts. The gear ring 108 is fixed to the limiting portion of the screening cylinder 104 by positioning pins and bolts. To ensure stability, the gear ring 108 can also be integrally formed with the screening cylinder 104. The first receiving device is used for sand receiving, and the second receiving device is used for stone receiving. The driving device is used to drive the gear 109 to rotate, thereby realizing the rotation of the screening cylinder 104. The 10° inclination between the screening cylinder 104 and the base 101 is designed to prevent the stones from falling too quickly.

[0025] Secondly, the receiving box 111 is slidably connected to the base 101, the side plate 106, and the support frame 102 respectively; the handle 112 is welded to the front side of the receiving box 111. A rectangular protrusion is provided on the rear side of the base 101 to limit the receiving box 111, ensuring that the receiving box 111 quickly reaches the receiving position after being pushed in.

[0026] Then, after the receiving box 111 is pulled out, it can be supported by the support plate 113, which is fixed to the base 101. The support plate 113 is L-shaped and is fixed by positioning pins and bolts.

[0027] Furthermore, the receiving box 114 is located below the outlet of the protective cover 103; the forklift legs 115 are welded to the bottom of the receiving box 114. The bottom of the receiving box 114 is provided with multiple forklift legs 115, and the cross-section of the forklift legs 115 is a U-shaped structure with the opening facing downwards, which facilitates the extension of the forklift arm of a manual forklift or a motorized forklift.

[0028] Finally, the motor mount 116 is fixed to the support frame 102; the drive motor 117 is fixed to the motor mount 116, and the gear 109 is fixed to its output shaft. The motor mount 116 is fixed with bolts, the drive motor 117 is fixed to the motor mount 116 with bolts, and the gear 109 is fixed to the output shaft with a flat key and bolts.

[0029] When using this invention to solve the problem of unstable separation processing in existing waste concrete separation equipment, the drive motor 117 is first controlled to rotate, driving the gear 109 to rotate. After the gear 109 rotates, it drives the gear ring 108 to rotate, thereby rotating the screening cylinder 104. Then, the waste material is put into the screening cylinder 104. Under the action of the rotation of the screening cylinder 104, the waste material can pass through the screen hole 110 to separate sand and stones. The sand falls into the collection box 111 and is collected. The stones are discharged through the screening cylinder 104 and fall into the collection box 114 and are collected. In this application, the screening cylinder 104 is in a rotating state when separating sand and stones, which reduces the clogging of the screen hole 110 and improves the stability of separation, thereby solving the problem of unstable separation processing in existing waste concrete separation equipment.

[0030] Example 2: like Figure 4 As shown, where Figure 4 This is a schematic diagram of the overall structure of a waste concrete separation device for concrete processing. Based on the first embodiment, the present invention provides a waste concrete separation device for concrete processing, which further includes a protective mechanism, including an annular cover 201 and a protective plate 202.

[0031] The annular protective cover 201 is detachably connected to the support frame 102 and is located outside the gear 109; the protective plate 202 is detachably connected to the motor base 116 and is located in front of the motor base 116. The annular protective cover 201 is fixed with bolts and has an internal clearance cavity. The protective plate 202 is fixed with bolts.

[0032] Secondly, a clearance cover 203 is also provided on the annular protective cover 201. The clearance cover 203 is integrally formed with the annular protective cover 201 and is located outside the drive motor 117. The clearance cover 203 is used to avoid the drive motor 117.

[0033] In this embodiment, by setting the annular protective cover 201 and the protective plate 202, the area where the gear 109 and the gear ring 108 mesh can be isolated to a certain extent, ensuring the safety of the equipment during operation.

[0034] Example 3: As shown in Figure 5, Figure 5 This is a schematic diagram of the overall structure of a waste concrete separation device for concrete processing. Based on the first embodiment, the present invention provides a waste concrete separation device for concrete processing, which further includes a reinforcing mechanism. The reinforcing mechanism includes a reinforcing frame 301 and an adjusting device. The adjusting device includes a threaded cylinder 302 and an adjusting rod 303.

[0035] The reinforcing frame 301 is detachably connected to both the base 101 and the support plate 113, and is symmetrically arranged. The adjusting device is located on the bottom side of the support plate 113. The two ends of the reinforcing frame 301 are fixed with bolts. The adjusting device is used to improve stability.

[0036] Secondly, the threaded cylinder 302 is detachably connected to the support plate 113 and is located at the bottom of the support plate 113; the adjusting rod 303 is threadedly connected to the threaded cylinder 302 and is located at the bottom of the threaded cylinder 302. The threaded cylinder 302 is T-shaped, and its fixing plate is fixed to the bottom of the support plate 113 by bolts. The adjusting rod 303 is T-shaped, and its external threaded end mates with the threaded cylinder 302.

[0037] In this embodiment, the stability of the support plate 113 can be improved by setting the reinforcing frame 301 and the adjusting device, making it easier to stably support the receiving box 111 after it is pulled out. By rotating the adjusting rod 303 and making its bottom abutting disc abut against the ground, a support structure can be further formed to improve stability.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A waste concrete separation device for concrete processing, comprising a base, a support frame and a protective cover fixed on the base, characterized in that, It further comprises a screening mechanism; The screening mechanism comprises a screening drum, a guide vane, a side plate, a top plate, a gear ring, a gear, a first receiving device, a second receiving device and a driving device, the screening drum is respectively installed on the base and the support frame through bearings, and forms a 10° angle with the base, four guide vanes are arranged inside the screening drum, the guide vanes are symmetrically arranged in a straight line, the screening drum is provided with a screen hole part in the area between the guide vanes, the side plates are detachably connected with the base and the support frame respectively and are symmetrically arranged, the top plate is installed on the top of the support frame and the base, the gear ring is fixed on the screening drum, the gear is engaged with the gear ring and is driven to rotate by the driving device arranged on the support frame, the first receiving device is arranged below the screen hole part, and the second receiving device is arranged at the bottom of the protective cover.

2. The waste concrete separation device for concrete processing according to claim 1, characterized in that, The first receiving device comprises a receiving box and a handle, the receiving box is slidably connected with the base, the side plate and the support frame respectively, and the handle is welded on the front side of the receiving box.

3. The waste concrete separation device for concrete processing according to claim 2, characterized in that, The receiving box can be supported by a support plate after being pulled out, and the support plate is fixed on the base.

4. The waste concrete separation device for concrete processing according to claim 1, characterized in that, The second receiving device comprises a receiving box and a forklift foot, the receiving box is arranged below the outlet of the protective cover, and the forklift foot is welded on the bottom of the receiving box.

5. The waste concrete separation device for concrete processing according to claim 1, characterized in that, The driving device comprises a motor seat and a driving motor, the motor seat is fixed on the support frame, the driving motor is fixed on the motor seat, and a gear is fixed on the output shaft of the driving motor.

6. The waste concrete separation device for concrete processing according to claim 5, characterized in that: The waste concrete separation device for concrete processing further comprises a protection mechanism, the protection mechanism comprises an annular protective cover and a protective plate, the annular protective cover is detachably connected with the support frame and located on the outside of the gear, and the protective plate is detachably connected with the motor seat and located on the front side of the motor seat.

7. The waste concrete separation device for concrete processing according to claim 6, characterized in that: An avoidance cover is further arranged on the annular protective cover, the avoidance cover is integrally formed with the annular protective cover and located on the outside of the driving motor.

Citation Information

Patent Citations

  • Waste concrete separation equipment for concrete processing

    CN218133217U