Gravel separation and dehydration device
By designing a sand and gravel separation and dewatering device, which uses a vibrating frame and multi-layer screen plates to screen sand and gravel, combined with stratified sedimentation in a water collection tank and purified water circulation, the problem of low efficiency in sand and gravel separation and dewatering in concrete recycling has been solved, achieving efficient resource utilization and water conservation.
Patent Information
- Application Number
- CN202423093287.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-13
AI Technical Summary
In the process of concrete recycling, existing technologies are unable to efficiently separate and dehydrate sand and gravel materials, resulting in resource waste and low equipment efficiency.
Design a sand and gravel separation and dewatering device, which includes a vibrating frame, multi-layer screen plates and a water collection tank. The screen plates screen the sand and gravel and separate the water. The water collection tank is equipped with a shallow water layer and a sedimentation layer to promote sediment settling. Combined with a water pump and nozzles, the purified water is recycled.
It achieves efficient grading, separation, and dewatering of sand and gravel, improves resource utilization, saves water resources, and enhances the economy and efficiency of the equipment.
Smart Images

Figure CN223615565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand and gravel separation technology, specifically to a sand and gravel separation and dewatering device. Background Technology
[0002] Sand and gravel are widely used in various fields such as construction, road building, and water conservancy projects. They are also a primary material for making concrete. During concrete construction, excess concrete often needs to be recycled. This concrete is often stored in transport trucks, and the washing and rinsing process produces sand and gravel slurry. During recycling, the sand and gravel need to be separated, and the water also needs to be separated and stored separately.
[0003] Therefore, this application proposes a sand and gravel separation and dewatering device. Utility Model Content
[0004] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a sand and gravel separation and dewatering device that can perform sand and gravel separation and dewatering.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a sand and gravel separation and dewatering device, comprising:
[0006] frame;
[0007] A vibration frame, which is floatingly mounted on the frame;
[0008] The first sieve plate is fixed on the vibrating frame and has a plurality of first sieve holes.
[0009] The second sieve plate is fixed on the vibrating frame below the first sieve plate. The second sieve plate has a plurality of second sieve holes, the diameter of which is smaller than that of the first sieve hole.
[0010] A water collection tank is installed on the frame below the vibrating frame. A partition is provided in the water collection tank to divide the water collection tank into a shallow water layer and a sedimentation layer. Several funnel-shaped channels are provided on the partition to connect the shallow water layer and the sedimentation layer.
[0011] A vibration motor, which is fixed on a vibration frame.
[0012] Preferably, a clean water tank is provided on one side of the water collection tank, and an overflow plate is provided between the water collection tank and the clean water tank, so that the water in the shallow water layer enters the clean water tank through the overflow plate.
[0013] Preferably, a water pump is installed in the water purification tank, and the water pump is connected to a nozzle through a water pipe. The nozzle is mounted on the frame and is used to wash away sand and gravel.
[0014] Preferably, the water purification tank is connected to a drainage pipe.
[0015] Preferably, an extension tube is provided at the lower end of the channel.
[0016] Preferably, the bottom of the sedimentation layer is funnel-shaped, and a sewage pump is provided at the bottom of the water collection tank for discharging the sludge from the bottom of the sedimentation layer.
[0017] Preferably, the frame is provided with multiple sets of springs, and the vibration frame is connected to the frame through the springs.
[0018] The beneficial effects of this utility model are as follows:
[0019] This invention achieves sand and gravel grading by setting a first sieve plate and a second sieve plate with different apertures for the first and second sieve holes. Simultaneously, water can fall through the first and second sieve holes into the lower water collection chamber, achieving dehydration and wastewater collection. The separation of the shallow water layer and sedimentation layer in the water collection chamber, along with the funnel-shaped channel, promotes rapid sedimentation of silt and initial purification of wastewater. By incorporating a water pump and nozzles, the purified water can be used to wash away mud from the sand and gravel, achieving water recycling, saving water resources, and improving the economic efficiency of the equipment. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a perspective view of a sand and gravel separation and dewatering device provided in an embodiment of the present utility model.
[0022] Figure 2 This is a front view of the present invention.
[0023] Figure 3 This is a top view of the present invention.
[0024] Figure 4 for Figure 3 Sectional view at point AA.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1. Frame, 2. Vibrating frame, 3. First screen plate, 4. First screen hole, 5. Second screen plate, 6. Second screen hole, 7. Water collection tank, 8. Baffle plate, 9. Shallow water layer, 10. Sedimentation layer, 11. Channel, 12. Vibrating motor, 13. Clean water tank, 14. Overflow plate, 15. Nozzle, 16. Drainage pipe, 17. Extension pipe, 18. Spring. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Example 1:
[0029] like Figures 1 to 4 As shown, Embodiment 1 of this utility model provides a sand and gravel separation and dewatering device for sand and gravel separation and dewatering. The main body of the device consists of key components such as a frame 1, a vibrating frame 2, a first screen plate 3, a second screen plate 5, a water collection tank 7, and a vibrating motor 12. The frame 1 serves as the supporting structure for the entire device, stably supporting the other components. The vibrating frame 2 is floatingly mounted on the frame 1 via multiple sets of springs 18. This floating design allows the vibrating frame 2 to perform efficient and stable vibration operations under the drive of the vibrating motor 12, while the elasticity of the springs 18 effectively buffers the impact force from the vibration, protecting the overall stable operation of the device.
[0030] The first sieve plate 3 is directly fixed to the vibrating frame 2, and has several large-diameter first sieve holes 4 evenly distributed on it for preliminary screening of larger sand and gravel particles. The second sieve plate 5 is located directly below the first sieve plate 3 and is also fixed to the vibrating frame 2. It has second sieve holes 6 with a diameter smaller than the first sieve holes 4, which are used to further refine the screening, ensuring that fine sand and water can pass through smoothly, while small sand and gravel particles are trapped on the second sieve plate 5.
[0031] The first screen plate 3 and the second screen plate 5 are arranged at an angle. Under the vibration of the vibrating motor 12, the sand and gravel move on the first screen plate 3 and the second screen plate 5. During the separation of coarse sand and fine sand, the water also falls from the first screen hole 4 and the second screen hole 6.
[0032] like Figure 4As shown, the water collection chamber 7 is fixed on the frame 1 directly below the vibrating frame 2, receiving water that seeps down from the second screen plate 5. The interior of the water collection chamber 7 is divided into a shallow water layer 9 and a sedimentation layer 10 by a horizontally arranged partition 8. Three funnel-shaped channels 11 are evenly distributed on the partition 8. These channels 11 not only keep the shallow water layer 9 and the sedimentation layer 10 connected, slowing the water flow, but also allow sludge in the sewage to converge towards the sedimentation layer 10 along the channels 11, which is beneficial for sediment settling. An extension pipe 17 is installed at the lower end of the channels 11, through which sludge enters the sedimentation layer 10, further reducing the disturbance of the shallow water layer 9 to the sedimentation layer 10 and enhancing the sedimentation effect.
[0033] To improve the efficiency of mud discharge, the bottom of the sedimentation layer 10 is designed in a funnel shape, and a sewage pump is installed at the bottom of the water collection tank 7. When enough mud accumulates in the sedimentation layer 10, the sewage pump can be started to quickly discharge it, preventing sediment buildup from affecting the separation effect.
[0034] Example 2:
[0035] like Figure 4 As shown, based on Embodiment 1, this utility model adds a purification tank 13 to one side of the water collection tank 7, and the two are connected by an overflow plate 14. As the water level of the shallow water layer 9 rises, the clearer water at the top will naturally flow into the purification tank 13 through the overflow plate 14, while most of the sludge will settle into the sedimentation layer 10, achieving preliminary water purification.
[0036] like Figure 4 As shown, a drain pipe 16 is also connected to one side of the water purification tank 13. The height of the drain pipe 16 is lower than that of the overflow plate 14, which makes it easier to discharge excess purified water.
[0037] Example 3:
[0038] Based on the above embodiments, in order to reduce clogging of the screen plate and wash away the mud on the sand and gravel to improve the quality of the sand and gravel, this utility model also installs a water pump in the clean water tank 13. The water pump is connected to the nozzle 15 at the top of the frame 1 through a water pipe. The nozzle 15 sprays water onto the sand and gravel and washes the screen plate at the same time. The washing water falls back into the water collection tank 7 and then into the clean water tank 13 for recycling. After washing, the sand and gravel will gradually lose moisture during the vibrating conveyor process and fall into the water collection tank 7 below for further dehydration.
[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A sand and gravel separation and dewatering device, characterized in that, include: Rack (1); Vibration frame (2), which is floatingly mounted on frame (1); The first sieve plate (3) is fixed on the vibrating frame (2) and has a plurality of first sieve holes (4) on it. The second sieve plate (5) is fixed on the vibration frame (2) below the first sieve plate (3). The second sieve plate (5) has a plurality of second sieve holes (6), the diameter of the second sieve holes (6) is smaller than the diameter of the first sieve holes (4). A water collection tank (7) is set on the frame (1) below the vibrating frame (2). A partition (8) is provided in the water collection tank (7), which divides the water collection tank (7) into a shallow water layer (9) and a sedimentation layer (10). Several funnel-shaped channels (11) are provided on the partition (8), which connect the shallow water layer (9) and the sedimentation layer (10). Vibration motor (12), which is fixed on vibration frame (2).
2. The sand and gravel separation and dewatering device as described in claim 1, characterized in that, A water purification tank (13) is provided on one side of the water collection tank (7), and an overflow plate (14) is provided between the water collection tank (7) and the water purification tank (13). Water in the shallow water layer (9) enters the water purification tank (13) through the overflow plate (14).
3. The sand and gravel separation and dewatering device as described in claim 2, characterized in that, A water pump is installed in the water purification tank (13). The water pump is connected to the nozzle (15) through a water pipe. The nozzle (15) is installed on the frame (1) and is used to flush sand and gravel.
4. The sand and gravel separation and dewatering device as described in claim 2, characterized in that, The water purification tank (13) is connected to a drainage pipe (16).
5. The sand and gravel separation and dewatering device as described in claim 1, characterized in that, An extension tube (17) is provided at the lower end of the channel (11).
6. The sand and gravel separation and dewatering device as described in claim 1, characterized in that, The bottom of the sedimentation layer (10) is funnel-shaped, and a sewage pump is provided at the bottom of the water collection tank (7) for discharging the mud from the bottom of the sedimentation layer (10).
7. The sand and gravel separation and dewatering device as described in claim 1, characterized in that, The frame (1) is provided with multiple sets of springs (18), and the vibration frame (2) is connected to the frame (1) through the springs (18).