Sandstone separator
By combining a vibrating screen and a fine sand separation component, the problems of complex structure and high cost of traditional sand and gravel separation equipment are solved, achieving efficient separation of crushed stone and fine sand and reducing operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional sand and gravel separation equipment has a complex structure and high operating costs, resulting in low separation efficiency, and the separation efficiency of crushed stone and fine sand in slurry is also low.
The system employs a vibrating screen and a fine sand separation component. The vibrating screen filters out gravel from the slurry, while the fine sand separation component uses gravity and a spiral flange to separate fine sand from water. The overall structure is simple and requires no additional drive device.
It achieves efficient separation of crushed stone and fine sand in slurry, reduces operating costs, simplifies equipment structure, and improves separation efficiency.
Smart Images
Figure CN224071446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of separation equipment technology, and in particular to a sand and gravel separator. Background Technology
[0002] Concrete is an engineering composite material that binds aggregates together with cementitious materials. It typically refers to cement concrete, made by mixing cement as the cementitious material, sand and gravel as aggregates, and water in a specific ratio. During concrete production and construction, mixer trucks and transport vehicles need to be washed regularly, producing slurry that is highly alkaline, with a pH value reaching 12. Indiscriminate discharge of this slurry can pollute the environment. Simultaneously, the slurry contains aggregates such as crushed stone and fine sand, which can be recycled. In traditional separation processes, crushed stone separation and fine sand separation are usually achieved using different specialized equipment or complex separation structures, resulting in low separation efficiency and high operating costs.
[0003] Therefore, it is necessary to provide a sand and gravel separator to overcome the above-mentioned defects. Utility Model Content
[0004] The purpose of this invention is to provide a sand and gravel separator that aims to improve the problems of complex structure and high operating cost of traditional sand and gravel separation equipment.
[0005] To achieve the above objectives, this utility model provides a sand and gravel separator for separating gravel and fine sand from slurry, comprising:
[0006] frame;
[0007] A material guide chute is installed on the frame and has a feed inlet at the bottom;
[0008] A vibrating screen is located below the feed inlet and is mounted on the frame by several spring supports. The vibrating screen is inclined downwards to vibrate and screen out the crushed stone in the slurry fed from the feed inlet and discharge it to a predetermined position.
[0009] A fine sand separation component is provided below the vibrating screen and is used to separate fine sand from water in the slurry after being screened by the vibrating screen.
[0010] In a preferred embodiment, the vibrating screen includes a screen mesh, two fixed plates respectively disposed on both sides of the screen mesh, a plurality of synchronous rods disposed between the two fixed plates, and a vibrator disposed on the fixed plates; the screen mesh is inclined downward; the spring support is disposed on one side away from each other of the two fixed plates; the vibrator is used to drive the screen mesh to vibrate so that the fine sand and water in the slurry fall into the fine sand separation assembly.
[0011] In a preferred embodiment, a baffle plate connected to the top of the screen is also connected between the two fixing plates.
[0012] In a preferred embodiment, the feed chute is funnel-shaped, and a filter screen for passing crushed stone is placed horizontally above the feed inlet.
[0013] In a preferred embodiment, the top of the guide trough is further provided with a baffle bracket, which is used to partially cover the top of the guide trough.
[0014] In a preferred embodiment, the frame includes multiple vertically arranged support rods, and the bottom side of the guide trough is provided with a fixing rod corresponding to each of the support rods; the support rods and the corresponding fixing rods are fixedly connected by elastic blocks.
[0015] In a preferred embodiment, the frame includes a separation tank inclined in a straight line, into which the slurry after being screened by the vibrating screen falls; a discharge port is provided at the top of the separation tank and a drain port is provided at the bottom; the fine sand separation assembly includes a drive motor, a screw, and a helical flange disposed on the surface of the screw; the screw and the helical flange are located inside the separation tank; the drive motor is used to drive the screw to rotate, thereby carrying the fine sand falling into the separation tank upward to the top of the separation tank, so that the fine sand is discharged from the discharge port.
[0016] In a preferred embodiment, the separation tank includes a first section located on the bottom side and a second section located on the top side; the top edge of the first section extends outward at an angle to form a funnel opening; the feed inlet's vertical projection relative to the ground falls completely into the funnel opening.
[0017] The sand and gravel separator provided by this utility model uses a vibrating screen to screen out gravel from the slurry. The remaining slurry containing fine sand falls onto a fine sand separation component under its own gravity, where the fine sand is separated from the water. The slurry moves downwards under its own gravity, falling into different locations without the need for additional driving devices. The overall structure is simple, reducing operating costs. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1A perspective view of the sand and gravel separator provided by this utility model;
[0020] Figure 2 for Figure 1 The image shows a three-dimensional view of the sand and gravel separator from another angle.
[0021] Figure 3 for Figure 1 The image shows a longitudinal half-section of the sand and gravel separator.
[0022] Figure 4 for Figure 1 The diagram shows a three-dimensional exploded view of some structures in the sand and gravel separator.
[0023] The diagram is labeled as follows: 100, Sand and gravel separator; 10, Frame; 11, Support rod; 12, Elastic block; 13, Spring support; 14, Separation tank; 141, Discharge port; 142, Drainage port; 143, First section; 144, Second section; 145, Funnel opening;
[0024] 20. Feed chute; 201. Feed inlet; 21. Filter screen; 22. Baffle bracket; 23. Fixing rod;
[0025] 30. Vibrating screen; 31. Screen mesh; 32. Fixing plate; 33. Synchronizing rod; 34. Vibrator; 35. Discharge plate; 36. Baffle plate;
[0026] 40. Fine sand separation component; 41. Screw; 42. Spiral flange. Detailed Implementation
[0027] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.
[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0029] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0030] In an embodiment of this utility model, a sand and gravel separator 100 is provided for separating gravel and fine sand in slurry, thereby separately recovering the fine sand and gravel in the slurry after concrete washing.
[0031] like Figures 1-4 As shown, the sand and gravel separator 100 includes: a frame 10, a feed chute 20, a vibrating screen 30, and a fine sand separation component 40.
[0032] The feed chute 20 is installed at the top of the frame 10, and a feed inlet 201 is provided at the bottom. The slurry containing gravel and fine sand enters from the top or side of the feed chute 20, and then falls onto the vibrating screen 30 through the feed inlet 201 by its own gravity.
[0033] The guide chute 20 is funnel-shaped, facilitating the transport of slurry and allowing it to concentrate and move towards the inlet 201. A filter screen 21, allowing crushed stone to pass through, is horizontally placed above the inlet 201 in the guide chute 20. The mesh size of the filter screen 21 can be designed to allow only concrete crushed stone and fine sand to pass through, while preventing larger debris from passing through. The filter screen 21 can also, to a certain extent, separate the adhered slurry mixture, facilitating subsequent separation of water, fine sand, and crushed stone.
[0034] Furthermore, the top of the feed chute 20 is also provided with a baffle bracket 22, which is used to partially shield the top of the feed chute 20 to prevent slurry from splashing and causing damage to other equipment or personnel.
[0035] Furthermore, the frame 10 includes multiple vertically arranged support rods 11. The bottom side of the feed chute 20 is provided with fixed rods 23 corresponding to the support rods 11. The support rods 11 and their corresponding fixed rods 23 are fixedly connected by elastic blocks 12. The elastic blocks 12 can be rubber blocks with a certain degree of elasticity, thereby absorbing the vibrations brought by the vibrating screen 30 and improving the stability of the feed chute 20.
[0036] In this embodiment of the invention, the vibrating screen 30 is located below the feed inlet 201 and is mounted on the frame 10 via several spring supports 13. These spring supports 13 can be rubber spring supports, possessing a certain elasticity, which can absorb the vibration of the vibrating screen 30 and prevent it from affecting the frame 10 and the fine sand separation assembly 40 below it. The vibrating screen 30 is inclined downwards to vibrate and screen out the gravel in the slurry fed into the feed inlet 201, and then discharge it to a predetermined location.
[0037] Specifically, the vibrating screen 30 includes a screen 31, two fixed plates 32 respectively disposed on both sides of the screen 31, a plurality of synchronous rods 33 disposed between the two fixed plates 32, and at least one vibrator 34 disposed on the fixed plates 32. Spring supports 13 are disposed on opposite sides of the two fixed plates 32. The mesh of the screen 31 is configured such that fine sand in the slurry after concrete washing can pass through, while gravel cannot, allowing water and fine sand to pass through the screen 31 and fall downwards, while gravel remains on the surface of the screen 31. The screen 31 is tilted downwards, allowing gravel to fall naturally downwards by its own weight. The bottom end of the screen 31 extends outwards to form a discharge plate 35 for discharging gravel; this discharge plate 35 has no mesh structure.
[0038] The vibrator 34 is used to drive the screen 31 to vibrate, so that the fine sand and water in the slurry fall into the fine sand separation component 40, thereby improving the separation efficiency of the screen 31 and accelerating the downward rolling of the crushed stone. It should be noted that the structure and implementation principle of the vibrator 34 can refer to the existing technology, and will not be elaborated here.
[0039] Furthermore, a baffle plate 36 connected to the top of the screen 31 is also connected between the two fixed plates 32. The baffle plate 36 is used to prevent slurry, fine sand, and gravel from falling outward from the top side of the screen 31.
[0040] In an embodiment of this utility model, the fine sand separation component 40 is disposed below the vibrating screen 30 and is used to separate the fine sand from the water in the slurry after being screened by the vibrating screen 30.
[0041] Specifically, the frame 10 includes a separation tank 14 inclined in a straight line, into which the slurry after being screened by the vibrating screen 30 falls. A discharge port 141 is provided at the top of the separation tank 14, and a drain port 142 is provided at the bottom. Further, the separation tank 14 includes a first section 143 located at the bottom and a second section 144 located at the top. The top edge of the first section 143 extends outward at an incline to form a funnel opening 145. The vertical projection of the feed inlet 201 and the screen 31 relative to the ground falls completely into the funnel opening 145, so that the slurry containing fine sand that has passed through the screen 31 falls into the funnel opening 145, and then, through the aggregation effect of the funnel opening 145, it falls into the first section 143 within the separation tank 14.
[0042] The fine sand separation assembly 40 includes a drive motor (possibly located on top of the screw 41, not shown in the figure), a screw 41, and a helical flange 42 disposed on the surface of the screw 41. The screw 41 and the helical flange 42 are located within the separation tank 14. That is, the screw 41 is inclined in alignment with the separation tank 14. The helix of the helical flange 42 almost abuts against the inner wall of the separation tank 14. The drive motor drives the screw 41 to rotate, and through the rotation of the helical flange 42, the fine sand falling into the separation tank 14 is carried upward to the top side of the separation tank 14, thereby discharging the fine sand from the discharge port 141, while the separated water is discharged through the drain port 142 located in the first section 143.
[0043] In summary, the sand and gravel separator 100 provided by this utility model uses a vibrating screen 30 to screen out gravel from the slurry. The remaining slurry containing fine sand falls onto the fine sand separation component 40 under its own gravity, where the fine sand is separated from the water. The slurry moves downwards under its own gravity, falling into different locations without the need for additional driving devices, resulting in a simple overall structure and reduced operating costs.
[0044] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.
Claims
1. A sand and gravel separator for separating gravel and fine sand from slurry, characterized in that, include: frame; A material guide chute is installed on the frame and has a feed inlet at the bottom; A vibrating screen is located below the feed inlet and is mounted on the frame by several spring supports. The vibrating screen is inclined downwards to vibrate and screen out the crushed stone in the slurry fed from the feed inlet and discharge it to a predetermined position. A fine sand separation component is provided below the vibrating screen and is used to separate fine sand from water in the slurry after being screened by the vibrating screen.
2. The sand and gravel separator as described in claim 1, characterized in that, The vibrating screen includes a screen mesh, two fixed plates respectively disposed on both sides of the screen mesh, a plurality of synchronous rods disposed between the two fixed plates, and a vibrator disposed on the fixed plates; the screen mesh is inclined downward; the spring support is disposed on one side away from each other of the two fixed plates; the vibrator is used to drive the screen mesh to vibrate so that the fine sand and water in the slurry fall into the fine sand separation assembly.
3. The sand and gravel separator as described in claim 2, characterized in that, A baffle plate connected to the top of the screen is also connected between the two fixing plates.
4. The sand and gravel separator as described in claim 1, characterized in that, The feed chute is funnel-shaped, and a filter screen for crushed stone to pass through is placed horizontally above the feed inlet.
5. The sand and gravel separator as described in claim 1, characterized in that, The top of the material guide trough is also provided with a baffle bracket, which is used to partially cover the top of the material guide trough.
6. The sand and gravel separator as described in claim 1, characterized in that, The frame includes multiple vertically arranged support rods, and the bottom side of the guide trough is provided with a fixed rod corresponding to each of the support rods; the support rods and the corresponding fixed rods are fixedly connected by elastic blocks.
7. The sand and gravel separator as described in claim 1, characterized in that, The frame includes a separation tank inclined in a straight line, and the slurry after being screened by the vibrating screen falls into the bottom of the separation tank; the top of the separation tank has a discharge port and the bottom has a drain port; the fine sand separation component includes a drive motor, a screw and a spiral flange on the surface of the screw; the screw and the spiral flange are located inside the separation tank; the drive motor is used to drive the screw to rotate, so as to carry the fine sand falling into the separation tank upward to the top of the separation tank, so that the fine sand is discharged from the discharge port.
8. The sand and gravel separator as described in claim 7, characterized in that, The separation tank includes a first section located on the bottom side and a second section located on the top side; the top edge of the first section extends outward at an angle to form a funnel opening; the vertical projection of the feed inlet relative to the ground falls completely into the funnel opening.