Graded recovery sand washing equipment
The integrated frame structure of the graded sand washing and recycling equipment, combined with hydrocyclones and dewatering screens, solves the problems of large footprint and low efficiency of traditional sand washing equipment. It enables simultaneous sand washing and grading, and can adjust the output particle size, thus improving the wear resistance and efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG LONGZHONG HEAVY IND MACHINERY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional sand washing equipment requires multiple units to achieve sand washing and recycling functions. It occupies a large space, has high power consumption, low efficiency, and cannot perform sand washing and grading simultaneously, nor can it adjust the output particle size.
The graded sand washing and recycling equipment adopts an integrated frame structure. Through the combination of hydrocyclones and dewatering screens, the material grading and discharge particle size are controlled by movable baffles, so as to realize the simultaneous sand washing and grading. The wear resistance of the equipment is improved by the ceramic lining material of the hydrocyclone.
It achieves a compact equipment layout, small footprint, high efficiency, and the ability to adjust the discharge particle size according to needs, thus extending the service life of the equipment.
Smart Images

Figure CN224181029U_ABST
Abstract
Description
A graded recycling sand washing equipment Technical Field
[0001] This utility model relates to the technical field of sand washing equipment, and in particular to a graded recycling sand washing equipment. Background Technology
[0002] Sand washing equipment is a mechanical device used to clean sand and gravel raw materials. It can effectively remove impurities such as mud and stone powder from sand and gravel, thereby improving the quality of sand and gravel. It is commonly used in industries such as mining and building materials and is an important piece of equipment to ensure that the quality of sand and gravel meets the standards.
[0003] Traditional sand washing equipment uses wheel bucket sand washing machines or spiral sand washing machines to wash sand, and then uses dewatering screens and hydrocyclones to recover and dewater fine sand. Multiple machines are required to achieve the functions of sand washing and recovery. This method has a large footprint, high power consumption, low efficiency, and cannot achieve the goal of washing and grading sand at the same time. It also cannot adjust the particle size of the output. Therefore, a grading and recovery sand washing equipment is proposed to solve the above problems. Summary of the Invention
[0004] To overcome the above shortcomings, this utility model provides a graded and recycled sand washing equipment, which aims to improve the problems of traditional sand washing equipment that requires multiple equipment to be combined to achieve sand washing and recycling functions, has a large footprint, high power consumption and low efficiency, and cannot achieve the purpose of washing and grading sand at the same time, nor can it adjust the particle size of the output.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a graded sand washing and recycling device, comprising a frame, a receiving hopper installed on one side of the top of the frame, a dewatering screen installed on the other side of the top of the frame, a hydrocyclone one installed on one side of the top of the receiving hopper, a hydrocyclone two installed on the other side of the top of the receiving hopper, a discharge hopper installed at one end of the frame, a water tank installed at the bottom of the frame, a slurry pump one installed on one side of the bottom of the inner wall of the frame, a slurry pump two installed on the other side of the bottom of the inner wall of the frame, the input end of the slurry pump two communicating with the interior of the water tank, and the output end of the slurry pump two connected to a feeding pipe, the top end of the feeding pipe communicating with the top of the hydrocyclone two.
[0006] As a further description of the above technical solution:
[0007] A movable baffle is installed on one side inside the receiving hopper.
[0008] As a further description of the above technical solution:
[0009] A movable baffle is installed on one side inside the discharge hopper.
[0010] As a further description of the above technical solution:
[0011] The output end of the slurry pump is connected to a feed pipe, and the top end of the feed pipe is connected to the top of the hydrocyclone.
[0012] As a further description of the above technical solution:
[0013] The bottom ends of both hydrocyclone one and hydrocyclone two are connected to the receiving hopper, and the bottom of the receiving hopper is connected to the dewatering screen.
[0014] As a further description of the above technical solution:
[0015] The bottom of the dewatering screen is connected to the water tank, and one end of the dewatering screen is connected to the discharge hopper.
[0016] As a further description of the above technical solution:
[0017] Platform walkways are installed on both sides of the top of the frame.
[0018] As a further description of the above technical solution:
[0019] A ladder is installed at one end of the frame near the receiving hopper.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the receiving hopper of the hydrocyclone of the sand washing equipment controls the position of the underflow of the two hydrocyclones falling into the screen plate by adding a movable baffle. The dewatering screen plate achieves the purpose of grading by cooperating with different screen plates. The combination of two hydrocyclones achieves the effect of sand washing and grading at the same time.
[0022] 2. In this utility model, the sand washing equipment adopts a frame structure, which is compact, occupies little space, is easy to install, and has higher efficiency. The sand washing equipment can adjust the particle size of the output by rotating the baffle, and the particle size ratio of the output can be adjusted at will according to the needs. Attached Figure Description
[0023] Figure 1 is a three-dimensional schematic diagram of a graded recycling sand washing equipment proposed in this utility model;
[0024] Figure 2 is a front view schematic diagram of a graded recycling sand washing equipment proposed in this utility model;
[0025] Figure 3 is a top view of a graded recycling sand washing equipment proposed in this utility model;
[0026] Figure 4 is a side cross-sectional schematic diagram of the receiving hopper of a graded recycling sand washing equipment proposed in this utility model.
[0027] Legend:
[0028] 1. Frame; 2. Hydrocyclone I; 3. Hydrocyclone II; 4. Collection hopper; 5. Dewatering screen; 6. Discharge hopper; 7. Platform walkway; 8. Water tank; 9. Slurry pump I; 10. Ladder; 11. Feed pipe; 12. Slurry pump II; 13. Feed pipe; 14. Movable baffle I; 15. Movable baffle II. Detailed Implementation
[0029] 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.
[0030] Referring to Figures 1-3, one embodiment of this utility model provides a graded and recycled sand washing device, including a frame 1. The frame 1 is an integral structure used to support the various components of the device and ensure overall stability. A receiving hopper 4 is installed on one side of the top of the frame 1. The receiving hopper 4 is used to receive and guide the underflow material from the hydrocyclone. A dewatering screen 5 is installed on the other side of the top of the frame 1. The dewatering screen 5 grades and dewaters the material through screen plates of different aperture sizes. A hydrocyclone 2 is installed on one side of the top of the receiving hopper 4, which plays a role in sand washing. It separates the wastewater and material in the raw material through centrifugal cyclone action. A second hydrocyclone 3 is installed on the other side of the top of the receiving hopper 4, which plays a role in fine sand recovery and is used to further process the fine sand material in the wastewater under the screen. The frame 1... A discharge hopper 6 is installed at one end, which is used to collect the graded finished materials. A water tank 8 is installed at the bottom of the frame 1, which is used to store the wastewater under screening for recycling. A slurry pump 9 is installed on one side of the bottom inner wall of the frame 1, which is used to send the raw materials into the hydrocyclone 2 for preliminary treatment. A slurry pump 12 is installed on the other side of the bottom inner wall of the frame 1. The input end of the slurry pump 12 is connected to the inside of the water tank 8. The output end of the slurry pump 12 is connected to the feed pipe 13, and the top end of the feed pipe 13 is connected to the top of the hydrocyclone 3. The slurry pump 12 is used to send the wastewater and fine sand in the water tank 8 into the hydrocyclone 3 for secondary treatment. The feed pipe 13 is used to transport the materials conveyed by the slurry pump 12.
[0031] Referring to Figure 4, a movable baffle 14 is installed on one side inside the receiving hopper 4. The movable baffle 14 can be rotated to adjust the angle, thereby controlling the position where the underflow of the two hydrocyclones falls into the screen plate.
[0032] Referring to Figure 1, a movable baffle 2 15 is installed on one side inside the discharge hopper 6. The opening of the movable baffle 2 15 can be adjusted according to production needs to change the discharge ratio of materials with different particle sizes.
[0033] Referring to Figure 2, the output end of the slurry pump 9 is connected to the feed pipe 11, and the top end of the feed pipe 11 is connected to the top of the hydrocyclone 2. The feed pipe 11 is used to transport the raw material conveyed by the slurry pump 9 for sand washing.
[0034] Referring to Figure 3, the bottom ends of hydrocyclone 2 and hydrocyclone 3 are both connected to the receiving hopper 4, ensuring that the underflow material separated by the hydrocyclones can fall directly into the receiving hopper 4. The bottom of the receiving hopper 4 is connected to the dewatering screen 5, so that the material in the receiving hopper 4 can be evenly distributed to the screen plate area of the dewatering screen 5.
[0035] Referring to Figures 1 and 2, the bottom of the dewatering screen 5 is connected to the water tank 8. The fine sand and sewage that are screened can fall into the water tank 8 through the screen plate. One end of the dewatering screen 5 is connected to the discharge hopper 6. The graded and dewatered material can be conveyed to the discharge hopper 6 through the screen surface.
[0036] Referring to Figure 1, platform walkways 7 are installed on both sides of the top of the frame 1, providing a safe passage for operation and maintenance of the equipment.
[0037] Referring to Figure 2, a ladder 10 is installed at one end of the frame 1 near the receiving hopper 4. The ladder 10 is used by operators to safely climb from the ground to the top platform of the equipment.
[0038] Working Principle: Raw materials are fed into hydrocyclone 2 via slurry pump 9. The swirling action of hydrocyclone 2 discharges wastewater through the drain port. Material is fed into the screen area of dewatering screen 5 via the underflow from hydrocyclone 2, achieving material washing. Fine sand and wastewater smaller than the screen aperture pass through the screen and fall into the underflow tank 8. Slurry pump 12 then feeds the material into hydrocyclone 3. The underflow from hydrocyclone 3 falls into the dewatering screen 5 area, and wastewater is discharged through the drain port, achieving sand recovery. The receiving hopper 4 of the hydrocyclone uses a movable baffle 14 to control the position of the underflow from the two hydrocyclones falling onto the screen. The screen of dewatering screen 5 achieves grading through the combination of different screen plates. The discharge hopper 6 is also equipped with a movable baffle 15, which can be modified according to requirements. The output particle size distribution is varied. The raw material is washed by the swirling action of the hydrocyclone. The dewatering screen 5 is composed of screen plates with different aperture sizes to achieve the purpose of classification. By combining two hydrocyclones, sand washing and classification can be carried out simultaneously. The receiving hopper 4 of the hydrocyclone and the discharge hopper 6 of the dewatering screen 5 control the particle size distribution of the output through rotating baffles. The equipment adopts an integrated frame 1. The dewatering screen 5 adopts a box-type vibrator, which has strong synchronization, stable operation, and simple adjustment. The excitation force and direction angle can be adjusted directly by disassembling and assembling the counterweights or changing their positions. The hydrocyclone uses 95 wear-resistant ceramic as the inner lining material, which has excellent hardness and wear resistance. When dealing with high-speed flowing sand and gravel, the ceramic lining can effectively resist erosion and greatly extend the service life of the hydrocyclone.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A graded sand washing and recycling device, comprising a frame (1), characterized in that: A receiving hopper (4) is installed on one side of the top of the frame (1), and a dewatering screen (5) is installed on the other side of the top of the frame (1). A hydrocyclone one (2) is installed on one side of the top of the receiving hopper (4), and a hydrocyclone two (3) is installed on the other side of the top of the receiving hopper (4). A discharge hopper (6) is installed at one end of the frame (1). A water tank (8) is installed at the bottom of the frame (1). A slurry pump one (9) is installed on one side of the bottom of the inner wall of the frame (1), and a slurry pump two (12) is installed on the other side of the bottom of the inner wall of the frame (1). The input end of the slurry pump two (12) is connected to the inside of the water tank (8), and the output end of the slurry pump two (12) is connected to a feeding pipe (13), and the top end of the feeding pipe (13) is connected to the top of the hydrocyclone two (3).
2. The graded recycling and washing sand equipment according to claim 1, characterized in that: A movable baffle (14) is installed on one side inside the receiving hopper (4).
3. The graded recycling and washing sand equipment according to claim 1, characterized in that: A movable baffle (15) is installed on one side inside the discharge hopper (6).
4. The graded recycling and washing sand equipment according to claim 1, characterized in that: The output end of the slurry pump (9) is connected to the feed pipe (11), and the top end of the feed pipe (11) is connected to the top of the hydrocyclone (2).
5. The graded recycling and washing sand equipment according to claim 1, characterized in that: The bottom ends of hydrocyclone one (2) and hydrocyclone two (3) are both connected to the receiving hopper (4), and the bottom of the receiving hopper (4) is connected to the dewatering screen (5).
6. The graded recycling and washing sand equipment according to claim 1, characterized in that: The bottom of the dewatering screen (5) is connected to the water tank (8), and one end of the dewatering screen (5) is connected to the discharge hopper (6).
7. The graded recycling and washing sand equipment according to claim 1, characterized in that: Platform walkways (7) are installed on both sides of the top of the frame (1).
8. The graded recycling and washing sand equipment according to claim 1, characterized in that: A ladder (10) is installed at one end of the frame (1) near the receiving hopper (4).