Multi-mode cooperative anti-blocking sand washer for machine-made sand production

Abstract

The utility model discloses a kind of multi-mode collaborative anti-blocking sand washer for machine-made sand production, to solve the problems such as easy jamming of traditional sand washing equipment, single drive, low intelligentization etc. It includes sand water tank body (built-in sand taking cavity and washing cavity), sand taking impeller assembly, spiral sand washing assembly, double-reduction motor driving assembly, vibration assembly (including adjustable frequency vibration motor and sensor), sand cleaning assembly (including spiral sand cleaning paddle) and intelligent controller. Through double-motor collaborative regulation sand taking and sand washing speed, vibration assembly dynamic anti-blocking, sand cleaning assembly cleans bottom sand accumulation, combined with controller intelligent control, realize efficient anti-blocking, multi-mode adaptation, improve machine-made sand production efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery technology, and in particular to a multi-mode collaborative anti-clogging sand washing machine for manufactured sand production. Background Technology

[0002] Manufactured sand, as an important raw material in the construction industry, requires a washing process to remove mud, dust, and impurities to meet the quality requirements of concrete, mortar, and other products. Traditional sand washing equipment often uses a single spiral or impeller structure, which, while achieving basic cleaning functions, still has many shortcomings in actual production. Firstly, the cleaning chambers of traditional sand washing machines are mostly fixed structures. When processing manufactured sand with high mud content and a large proportion of fine particles, wet sand easily adheres and accumulates on the inner wall of the cleaning chamber, the spiral blades, or the impeller surface, even clogging the material discharge channel. This leads to frequent machine shutdowns for cleaning, severely impacting production efficiency. Secondly, traditional drive systems are mostly driven by a single motor. A few use multiple motors but lack coordinated control. The power output during sand extraction and washing cannot be independently adjusted, making it difficult to adapt to the needs of different material characteristics (such as changes in sand particle size and moisture content). This results in either incomplete cleaning due to insufficient power or energy waste due to excessive power. Thirdly, cleaning the accumulated sand at the bottom of traditional equipment relies on regular manual inspections. Long-term accumulation of sand easily leads to caking, affecting not only the smoothness of material discharge but also potentially causing secondary pollution (such as fine sand re-adhering to impurities) due to prolonged sand retention. Fourthly, the operating status of traditional sand washing machines lacks real-time monitoring and feedback, making it impossible to dynamically adjust operating parameters (such as vibration frequency and stirring intensity) according to changes in working conditions. The level of intelligence is low, the anti-clogging effect relies on manual experience, and the stability is poor.

[0003] Therefore, there is an urgent need for a new type of sand washing equipment that can work together to prevent blockages, adjust in multiple modes, and has a high degree of intelligence, in order to solve the problem of blockage in the washing process of manufactured sand production and improve production efficiency and sand quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a multi-mode collaborative anti-clogging sand washing machine for manufactured sand production.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a multi-mode collaborative anti-clogging sand washing machine for manufactured sand production, comprising: a sand-water tank, with a sand-collecting chamber and a washing chamber connected at the bottom sequentially along the material flow direction inside; a feed inlet communicating with the sand-collecting chamber at one end of the sand-water tank, and a discharge outlet communicating with the washing chamber at the other end; a sand-collecting impeller assembly, rotatably disposed in the sand-collecting chamber, for initially separating the mixture of manufactured sand and water entering through the feed inlet and conveying it to the washing chamber; a spiral sand washing assembly, rotatably disposed in the washing chamber, for deeply rinsing the manufactured sand entering the washing chamber and conveying it to the discharge outlet; and a drive assembly, fixed to the end brackets of the sand-water tank corresponding to the sand-collecting chamber and the washing chamber, for... The transmission mechanism is driven and connected to the sand-collecting impeller assembly and the spiral sand-washing assembly respectively; the vibration assembly, including at least one vibration unit, is disposed on the outer side wall of the sand-water tank and is used to prevent the manufactured sand from accumulating and clogging on the sand-collecting chamber, the washing chamber, or the spiral sand-washing assembly through vibration; the sand-cleaning assembly, including at least one sand-cleaning unit, is disposed on the inner side of the bottom wall of the sand-water tank and is used to agitate the accumulated sand at the bottom of the tank to prevent the discharge port from clogging; the controller is fixed on the outer side wall of the top of the sand-water tank and is electrically connected to the drive assembly, the vibration assembly, and the sand-cleaning assembly respectively, and is used to coordinately control the power output parameters of the drive assembly, the vibration frequency of the vibration assembly, and the agitation frequency of the sand-cleaning assembly.

[0006] As a preferred embodiment of this utility model, the sand-collecting impeller assembly includes: a rotating sand-collecting impeller, which is a disc-shaped structure with a central shaft hole, and is keyed to the output shaft of the drive assembly through the shaft hole; a plurality of radial blades are evenly distributed on the outer circumference of the rotating sand-collecting impeller; a sand-collecting filter bucket, which is an arc-shaped plate structure, and is detachably fixed between two adjacent radial blades; the bottom of the sand-collecting filter bucket has a plurality of filter holes, and the inner wall of the bucket has a guide groove for guiding the manufactured sand to move toward the cleaning chamber.

[0007] As a preferred technical solution of this utility model, the spiral sand washing assembly includes: a spiral shaft, which is horizontally arranged in the washing chamber and whose two ends are rotatably connected to the top of the sand and water tank through waterproof bearings; one end of the spiral shaft extends to the outside of the sand and water tank and is keyed to the driven wheel of the driving assembly; and spiral blades, which are spirally wound around the outer circumference of the spiral shaft.

[0008] As a preferred embodiment of this utility model, the drive assembly includes: two rotary drive motors, both of which are geared motors, respectively fixed on motor brackets at both ends of the sand-water tank, with a drive wheel fixedly connected to the output shaft of each rotary drive motor; a first transmission belt connecting the drive wheel of one of the rotary drive motors to the end of the rotary sand-collecting impeller of the sand-collecting impeller assembly; and a second transmission belt connecting the drive wheel of the other rotary drive motor to the driven wheel at the end of the spiral shaft of the spiral sand-washing assembly; both the first and second transmission belts are synchronous belts to ensure the synchronicity of power transmission.

[0009] As a preferred embodiment of this utility model, the vibration assembly includes at least one vibration unit, each vibration unit including a vibration motor and a vibration sensor. The vibration motor is fixed to the outer side wall of the sand-water tank by bolts, and the vibration direction is consistent with the material flow direction of the sand-taking chamber and the washing chamber. The vibration sensor is a triaxial accelerometer, which is embedded in the outer side wall of the sand-water tank and electrically connected to the controller. It is used to monitor the vibration frequency and amplitude of the tank in real time and feed back to the controller to adjust the frequency of the vibration motor.

[0010] As a preferred technical solution of this utility model, the sand cleaning assembly includes at least one sand cleaning unit, each sand cleaning unit including: a spiral sand cleaning paddle, which is perpendicular to the spiral direction of the spiral shaft; a sand cleaning drive motor, which is a waterproof servo motor, fixed to the outside of the bottom wall of the sand-water tank, and the output shaft is keyed to the central shaft of the spiral sand cleaning paddle; and a sand cleaning port, which is opened on the bottom wall of the sand-water tank at the position corresponding to the spiral sand cleaning paddle, for discharging the agitated accumulated sand.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Multi-mode collaborative drive with strong adaptability: The equipment employs dual-reduction motors to independently drive the sand-collecting impeller assembly and the spiral sand-washing assembly. By adjusting the speeds of the two motors, the speed matching of the "sand collection-washing" process can be achieved. For example, when processing sand with high mud content, the speed of the sand-collecting impeller can be reduced (to avoid excessive disturbance of the mud clumps), while the speed of the spiral sand-washing assembly can be increased (to enhance the washing force). Conversely, when processing sand with low mud content, the sand collection efficiency can be improved, significantly broadening the equipment's adaptability to different material characteristics and reducing energy consumption. 2. Dynamic vibration anti-clogging, high reliability: The vibration component generates directional vibration through an adjustable frequency vibration motor. Combined with a triaxial accelerometer to monitor the vibration frequency and amplitude in real time, the vibration parameters are fed back to the controller to dynamically adjust the vibration parameters. This can effectively break the adhesion conditions of sand in the sand picking chamber, cleaning chamber and spiral blade surface, reduce the risk of accumulation and blockage from the source, and significantly reduce the frequency of downtime for cleaning. 3. Bottom sand cleaning structure for smooth material discharge: The sand cleaning component stirs up the sand accumulated at the bottom of the box through a spiral sand cleaning paddle, and discharges it in a concentrated manner through the sand cleaning port on the bottom wall. This avoids the problem of poor material discharge caused by bottom sand caking in traditional equipment, ensuring continuous and stable output of sand, while reducing the labor intensity of manual sand cleaning. 4. Intelligent collaborative control for improved efficiency: The controller integrates the collaborative control of drive, vibration, and sand cleaning components. It can adjust the motor speed, vibration frequency, and sand cleaning frequency in real time according to parameters such as sand properties (e.g., mud content, particle size) and equipment load, to achieve fully automated operation of the entire process, improving production efficiency while reducing manual intervention costs. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is the front view of this utility model; Figure 3 This is a top view of the present invention; Figure 4 This is a cross-sectional structural diagram of the present invention; In the diagram: 1. Sand and water tank; 2. Sand-collecting impeller assembly; 3. Spiral sand washing assembly; 4. Drive assembly; 5. Vibration assembly; 6. Sand cleaning assembly; 7. Controller; 11. Feed inlet; 12. Discharge outlet; 13. Sand-collecting chamber; 14. Cleaning chamber; 15. Motor bracket; 21. Rotating sand-collecting impeller; 22. Sand-collecting filter bucket; 31. Spiral blades; 32. Spiral shaft; 41. Rotary drive motor; 42. First transmission belt; 43. Drive wheel; 44. Driven wheel; 45. Second transmission belt; 51. Vibration motor; 52. Vibration sensor; 61. Spiral sand cleaning paddle; 62. Sand cleaning drive motor; 63. Sand cleaning port; 211. Shaft hole; 212. Radial blades; 221. Filter hole; 222. Guide channel; 321. Waterproof bearing. Detailed Implementation

[0013] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0014] In the attached diagram, all identical reference numerals refer to the same components.

[0015] Example 1: Basic Cooperative Anti-blocking Structure like Figure 1-4As shown in the figure, this embodiment provides a multi-mode collaborative anti-clogging sand washing machine for manufactured sand production. Its main structure is as follows: The sand and water tank 1 is provided with a sand taking chamber 13 and a washing chamber 14 connected at the bottom along the material flow direction; the left end of the sand and water tank 1 is provided with a feed inlet 11 connected to the sand taking chamber 13, and the right end is provided with a discharge port 12 connected to the washing chamber 14.

[0016] The sand-collecting impeller assembly 2 is installed inside the sand-collecting chamber 13: the rotating sand-collecting impeller 21 has a disc-shaped structure with a shaft hole 211 in the center, which is keyed to the output shaft of the drive assembly 4; six radial blades 212 are evenly distributed on the outer circumference of the rotating sand-collecting impeller 21, and sand-collecting filter buckets 22 are detachably fixed between adjacent blades (connected by bolts). The sand-collecting filter bucket 22 is an arc-shaped plate with densely packed filter holes 221 at the bottom, and an inclined guide groove 222 on the inner wall of the bucket to guide the manufactured sand towards the washing chamber 14.

[0017] Please see Figure 4 The spiral sand washing assembly 3 is installed in the cleaning chamber 14: the spiral shaft 32 is horizontally arranged in the cleaning chamber 14, and its two ends are rotatably connected to the top of the sand and water tank 1 through waterproof bearings 321; the left end of the spiral shaft 32 extends to the outside of the sand and water tank 1 and is keyed to the driven wheel 44 of the drive assembly 4; the spiral blades 31 are spirally wound around the outer circumference of the spiral shaft 32, and the spiral direction is left-handed (matching the rotation direction of the spiral shaft 32).

[0018] Please see Figure 3 The drive assembly 4 is fixed on the motor brackets 15 at both ends of the sand tank 1: it includes two rotary drive motors 41, which are arranged close to the sand taking chamber 13 and the cleaning chamber 14 respectively; the output shaft of the left rotary drive motor 41 is fixedly connected to the drive wheel 43, which is connected to the end of the shaft hole 211 of the rotary sand taking impeller 21 through the first synchronous transmission belt 42; the output shaft of the right rotary drive motor 41 is fixedly connected to another drive wheel 43, which is connected to the driven wheel 44 at the end of the spiral shaft 32 through the second synchronous transmission belt 45.

[0019] Please see Figure 1 The vibration assembly 5 includes two vibration units: a vibration motor 51 (adjustable frequency range 50-200Hz) is fixed to the outer side of the front wall of the sand-water tank 1 by bolts, and the vibration direction is consistent with the material flow direction (from left to right); a vibration sensor 52 (triaxial accelerometer) is embedded in the outer side of the rear wall of the sand-water tank 1 and electrically connected to the controller 7 to provide real-time feedback on the vibration frequency and amplitude.

[0020] Please see Figure 4The sand cleaning assembly 6 includes two sand cleaning units: a spiral sand cleaning paddle 61 is horizontally arranged on the inner side of the bottom wall of the sand-water tank 1, perpendicular to the spiral direction of the spiral shaft 32; a sand cleaning drive motor 62 is fixed on the outer side of the bottom wall of the sand-water tank 1, and its output shaft is keyed to the central shaft of the spiral sand cleaning paddle 61; and a sand cleaning port 63 is opened on the bottom wall of the sand-water tank 1 at the position corresponding to the middle of the spiral sand cleaning paddle 61, for discharging the agitated accumulated sand.

[0021] The controller 7 is fixed to the top outer wall of the sand and water tank 1 and is electrically connected to two rotary drive motors 41, a vibration motor 51, a vibration sensor 52 and a sand cleaning drive motor 62 via wires. It has a built-in PLC program and can preset or adjust the operating parameters of each component in real time.

[0022] Example 2: Adaptation mode for sand with high mud content When processing highly viscous manufactured sand with a mud content of ≥15%, the sand washing machine achieves anti-clogging cleaning through the coordinated action of multiple components: The mixture of manufactured sand and water enters the sand-collecting chamber 13 through the feed inlet 11. The controller 7 controls the left rotary drive motor 41 to run at a low speed (80 r / min), and the rotating sand-collecting impeller 21 rotates slowly, pushing the material through the radial blades 212. At the same time, some water is discharged through the filter holes 221 of the sand-collecting filter hopper 22, and the guide channel 222 pushes the wet sand towards the washing chamber 14 (to avoid mud clumps adhering to the impeller due to high-speed rotation). At this time, the right rotary drive motor 41 runs at a high speed (120 r / min), driving the spiral shaft 32 and spiral blades 31 to rotate at high speed through the second synchronous transmission belt 45. The spiral blades 31 strongly stir the manufactured sand entering the washing chamber 14, and use the water flow to wash away the mud clumps adhering to the surface of the sand particles (the mud clumps flow back to the sand-collecting chamber 13 through the bottom connection of the washing chamber 14 with the water flow, and finally move towards the discharge port with the sand).

[0023] In the vibration assembly 5, the vibration sensor 52 monitors the vibration frequency of the side wall of the sand tank 1 in real time (initially set to 100Hz). If the detected amplitude is lower than the threshold (0.5mm), the controller 7 automatically increases the frequency of the vibration motor 51 to 120Hz. The directional vibration breaks the adhesion layer of sand on the inner wall of the sand picking chamber 13 and the surface of the spiral blade 31, preventing accumulation.

[0024] In the sand cleaning component 6, the sand cleaning drive motor 62 starts according to a preset cycle (every 30 minutes of operation), and the spiral sand cleaning paddle 61 rotates at a medium speed (30r / min) to agitate the accumulated sand (mainly fine sand particles and impurities) on the bottom wall of the sand-water tank 1. The accumulated sand is discharged through the sand cleaning port 63 (it can be collected by an external sand collecting hopper) to prevent the accumulated sand from caking and clogging the discharge port 12.

[0025] Example 3: High-efficiency mode for low mud content sand When processing low-viscosity manufactured sand with a mud content of ≤8%, the equipment achieves efficient cleaning by adjusting component parameters: The left-side rotary drive motor 41 operates at a high speed (120 r / min), and the rotating sand-collecting impeller 21 quickly moves the material. The guide channel 222 of the sand-collecting filter bucket 22 accelerates the conveying of wet sand to the cleaning chamber 14 (shortening the sand collection time). The right-side rotary drive motor 41 operates at a medium speed (90 r / min), and the spiral blades 31 stir the sand at a moderate speed, which can ensure the cleaning effect (removing residual fine powder) and avoid excessive disturbance that would cause fine sand to be lost.

[0026] In the vibration assembly 5, the vibration sensor 52 detects that the vibration amplitude is stable at 0.8mm (above the threshold), and the controller 7 reduces the frequency of the vibration motor 51 to 80Hz (to maintain the basic vibration) to reduce energy consumption.

[0027] In the sand cleaning component 6, the sand cleaning drive motor 62 extends the operating interval (starts once every 60 minutes), and the spiral sand cleaning blade 61 rotates at a low speed (20r / min), only slightly agitating the sand accumulated on the bottom wall (the amount of sand accumulated is small under low mud content), ensuring that the discharge port 12 is unobstructed.

[0028] As can be seen from the above three embodiments, the sand washing machine, through dual-motor coordinated drive, adaptive vibration frequency adjustment, and dynamic control of the sand cleaning cycle, can flexibly adapt to the cleaning needs of manufactured sand with different mud content and particle size, significantly improving anti-clogging efficiency and production stability.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-mode collaborative anti-clogging sand washing machine for manufactured sand production, characterized in that, include: The sand-water tank (1) has a sand-collecting chamber (13) and a washing chamber (14) connected at the bottom along the material flow direction. One end of the sand-water tank (1) has an inlet (11) connected to the sand-collecting chamber (13), and the other end has a discharge port (12) connected to the washing chamber (14). The sand-collecting impeller assembly (2) is rotatably disposed in the sand-collecting chamber (13) and is used to initially separate the mixture of manufactured sand and water entering through the inlet (11) and convey it to the washing chamber (14). The spiral sand-washing assembly (3) is rotatably disposed in the washing chamber (14) and is used to deeply wash the manufactured sand entering the washing chamber (14) and convey it to the discharge port (12). The drive assembly (4) is fixed on the end bracket of the sand-water tank (1) corresponding to the sand-collecting chamber (13) and the washing chamber (14) and is driven by a transmission mechanism. The drive assembly (4), vibration assembly (5), and sand washing assembly (3) are connected to the sand taking impeller assembly (2) and the spiral sand washing assembly (3) respectively. The vibration assembly (5) includes at least one vibration unit and is located on the outer side of the side wall of the sand and water tank (1) to prevent the manufactured sand from accumulating and clogging on the sand taking chamber (13), the washing chamber (14) or the spiral sand washing assembly (3) through vibration. The sand cleaning assembly (6) includes at least one sand cleaning unit and is located on the inner side of the bottom wall of the sand and water tank (1) to stir the accumulated sand at the bottom of the tank to prevent the discharge port (12) from being blocked. The controller (7) is fixed on the outer side wall of the top of the sand and water tank (1) and is electrically connected to the drive assembly (4), the vibration assembly (5) and the sand cleaning assembly (6) respectively. It is used to coordinate the control of the power output parameters of the drive assembly (4), the vibration frequency of the vibration assembly (5) and the stirring frequency of the sand cleaning assembly (6).

2. The multi-mode collaborative anti-clogging sand washing machine for manufactured sand production according to claim 1, characterized in that, The sand-collecting impeller assembly (2) includes: a rotating sand-collecting impeller (21), which is a disc-shaped structure with a shaft hole (211) in the center, and is connected to the output shaft of the drive assembly (4) through the shaft hole (211); the rotating sand-collecting impeller (21) has several radial blades (212) evenly distributed on its outer periphery; a sand-collecting filter bucket (22), which is an arc-shaped plate structure, and is fixed between two adjacent radial blades (212) in a detachable manner; the bottom of the sand-collecting filter bucket (22) has multiple filter holes (221), and the inner wall of the bucket has a guide groove (222) for guiding the manufactured sand to move towards the cleaning chamber (14).

3. The multi-mode collaborative anti-clogging sand washing machine for manufactured sand production according to claim 1, characterized in that, The spiral sand washing assembly (3) includes: a spiral shaft (32), which is horizontally arranged in the washing chamber (14) and its two ends are rotatably connected to the top of the sand and water tank (1) through waterproof bearings (321); one end of the spiral shaft (32) extends to the outside of the sand and water tank (1) and is keyed to the driven wheel (44) of the drive assembly (4); and spiral blades (31), which are spirally wound around the outer periphery of the spiral shaft (32).

4. A multi-mode collaborative anti-clogging sand washing machine for manufactured sand production according to claim 1, characterized in that, The drive assembly (4) includes: two rotary drive motors (41), both of which are geared motors, which are fixed on motor brackets (15) at both ends of the sand tank (1), and the output shaft of each rotary drive motor (41) is fixedly connected to a drive wheel (43); a first transmission belt (42) connecting the drive wheel (43) of one of the rotary drive motors (41) to the end of the rotary sand-collecting impeller (21) of the sand-collecting impeller assembly (2); and a second transmission belt (45) connecting the drive wheel (43) of the other rotary drive motor (41) to the driven wheel (44) at the end of the spiral shaft (32) of the spiral sand-washing assembly (3); the first transmission belt (42) and the second transmission belt (45) are both synchronous belts to ensure the synchronicity of power transmission.

5. A multi-mode collaborative anti-clogging sand washing machine for manufactured sand production according to claim 1, characterized in that, The vibration assembly (5) includes at least one vibration unit. Each vibration unit includes a vibration motor (51) and a vibration sensor (52). The vibration motor (51) is fixed to the outside of the side wall of the sand-water tank (1) by bolts. The vibration direction is consistent with the material flow direction of the sand-taking chamber (13) and the cleaning chamber (14). The vibration sensor (52) is a triaxial accelerometer, which is embedded in the outside of the side wall of the sand-water tank (1) and electrically connected to the controller (7). It is used to monitor the vibration frequency and amplitude of the tank in real time and feed it back to the controller (7) to adjust the frequency of the vibration motor (51).

6. A multi-mode collaborative anti-clogging sand washing machine for manufactured sand production according to claim 3, characterized in that, The sand cleaning assembly (6) includes at least one sand cleaning unit, each sand cleaning unit including: a spiral sand cleaning paddle (61) perpendicular to the spiral direction of the spiral shaft (32); a sand cleaning drive motor (62), which is a waterproof servo motor, fixed to the outside of the bottom wall of the sand tank (1), and the output shaft is keyed to the central shaft of the spiral sand cleaning paddle (61); and a sand cleaning port (63), which is opened on the bottom wall of the sand tank (1) at the position corresponding to the spiral sand cleaning paddle (61), for discharging the agitated accumulated sand.

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