A multifunctional sand and gravel washing device and its working method

Abstract

This invention belongs to the technical field of sand and gravel cleaning, specifically addressing mud content and mud lump content. It provides a sand and gravel washing device that can soak samples, rinse sand and gravel from top to bottom, perform layer-by-layer brushing for uniform cleaning, detect whether the sand and gravel is clean, and then dry it. More particularly, it relates to a multifunctional sand and gravel cleaning device and its working method. This invention enables the rinsing cage to carry the sand and gravel up and down for rinsing. The cleaning rollers rotate synchronously as the rinsing cage rises, brushing the sand and gravel on each filter plate to powerfully remove different types of impurities. Built-in sensors, utilizing conductivity and turbidity detection modules, measure the cleanliness of the sand and gravel from both soluble and insoluble impurity perspectives. After the sand and gravel washing is completed and meets the standards, a waterproof drying oven quickly removes moisture. The device also allows for turning the sand and gravel during drying to accelerate drying. It integrates soaking, cleaning of sand and gravel mud content and mud lump content, automated control of the washing endpoint, detection, drying, and automatic weighing.

Description

Technical Field

[0001] This invention belongs to the field of sand and gravel cleaning technology, and provides a sand and gravel washing device that can soak samples, rinse sand and gravel from top to bottom, roll and brush evenly layer by layer while washing sand and gravel, detect whether it is clean, and blow dry after washing. In particular, it relates to a multifunctional sand and gravel cleaning device and its working method. Background Technology

[0002] In construction, road engineering, concrete production, and many other industrial sectors, sand and gravel are an indispensable basic raw material. However, natural sand and gravel often contain impurities such as soil, clay, stone powder, and mica. The presence of these impurities has a significant negative impact on the quality and performance of sand and gravel, which in turn affects the quality and performance of various products made from sand and gravel. In concrete for construction, sand and gravel with more impurities will reduce the strength and durability of the concrete, leading to potential structural safety hazards in buildings. In road paving, inferior sand and gravel will reduce the smoothness and stability of the road, shortening its service life.

[0003] Traditional sand and gravel washing methods and equipment are often single-function, inefficient, and produce unsatisfactory cleaning results. Some small sand and gravel washing plants still use simple manual screening and water washing methods, which are not only labor-intensive and costly, but also cannot meet the requirements of large-scale industrial production for sand and gravel quality and output. With the rapid development of modern industry, the demand for high-quality sand and gravel is increasing day by day. There is an urgent need for a high-efficiency, multi-functional, and highly automated sand and gravel washing device to solve the problems existing in the current sand and gravel washing process, improve the purity and quality of sand and gravel, meet the strict standards of various industries for high-quality sand and gravel, and at the same time reduce production costs, improve production efficiency and resource utilization, and reduce environmental impact. This is the important background and driving factor for the emergence of multi-functional sand and gravel washing devices. Summary of the Invention

[0004] This invention proposes a multifunctional sand and gravel washing device and its working method. The purpose of this invention is to provide a sand and gravel washing device that can soak samples, rinse sand and gravel from top to bottom, roll and brush the sand and gravel evenly layer by layer while washing, detect whether the sand and gravel is clean, and blow dry the sand and gravel after washing.

[0005] The technical solution of the present invention is as follows:

[0006] A multifunctional sand and gravel washing device includes a rotating device, a washing tank, and a detection device.

[0007] The rotating device is a motor. A driven shaft is fixed to the output end of the motor. A driving gear is fixedly sleeved on the driven shaft. A follower shaft is fixed to the end of the driven shaft. A one-way thread is opened on the follower shaft. A displacement sleeve is threaded onto the one-way thread. The displacement sleeve is rotatably mounted on the follower shaft. A fixing rod is fixed to one side of the displacement sleeve. A scouring pad is fixed to the end of the fixing rod. A base plate is provided at the tail end of the follower shaft. One side of the base plate is fixed to the washing tub.

[0008] A driven gear is meshed with the driving gear, a central rod is fixedly sleeved on the driven gear, and three cleaning sleeves are fixedly sleeved on the central rod. A first cleaning roller brush is rotatably installed on one side of each of the three cleaning sleeves, and a second cleaning roller brush is rotatably installed on the other side of each of the three cleaning sleeves.

[0009] The rinsing basket contains a filter plate, a second filter plate is installed below the first filter plate, a third filter plate is installed below the second filter plate, a sand-blocking plate is installed below the third filter plate, an overflow cover is provided below the sand-blocking plate, and a waterproof drying oven is installed inside the overflow cover.

[0010] The middle positions of the first, second, and third filter plates are all provided with central holes for the central rod to pass through. The tail end of the central rod is rotatably installed on the bottom inner wall of the cleaning tank. A dual-purpose inlet and outlet is provided on one side of the bottom of the cleaning tank.

[0011] The rotating device is activated, and when it rotates clockwise, it drives the driven shaft to rotate clockwise. The driven shaft then drives the follower shaft to rotate clockwise, which in turn moves the displacement sleeve downwards. The displacement sleeve then moves the fixed rod downwards, and the fixed rod moves the rinsing cage downwards. Conversely, when the rotating device rotates counterclockwise, the rinsing cage moves upwards. This is used to rinse the sand and gravel in the rinsing cage. As the rinsing cage moves upwards, the drive gear drives the driven gear to rotate. The driven gear then drives the central rod to rotate. The central rod then drives the three cleaning sleeves to rotate. The three cleaning sleeves drive the three sets of first and second cleaning roller brushes to rotate, which are used to evenly brush the sand and gravel on the first, second, and third filter plates.

[0012] As a preferred embodiment of the present invention, the detection device is installed inside the cleaning tank, and the detection device includes a control system;

[0013] The sample collection unit includes a movable sampling hopper and an electric track. The sampling hopper is connected to the control system via the electric track, and an automatic weighing device is connected below the sampling hopper.

[0014] The dissolving and stirring unit consists of a transparent cylindrical dissolving tank with a sealing cap on top. The sealing cap has a feed inlet and a water inlet. The feed inlet is connected to the discharge outlet of the sampling hopper through a pipe with an electric valve. The dissolving tank is equipped with a stirring paddle and a heating device.

[0015] The detection unit includes a conductivity detection module and a turbidity detection module. The conductivity detection module has a high-precision conductivity sensor installed in the solution inside the dissolving tank, and the turbidity detection module has a turbidity sensor installed on the side of the dissolving tank.

[0016] The data processing and display unit includes a data acquisition card and a computer control system. The data acquisition card is connected to a conductivity sensor and a turbidity sensor. The computer control system is connected to a display screen and has a built-in data analysis module.

[0017] As a preferred embodiment of the present invention, the first layer of filter plate is a coarse pore filter, the second layer of filter plate is a fine pore filter, and the third layer of filter plate is a fine filter. The first and second layers can be selected with five different screen apertures: 80μm, 630μm, 1.25mm, 2.5mm, and 5.00mm, respectively, to meet different requirements for cleaning sand and gravel with different mud content and mud lump content.

[0018] A method for operating a multifunctional sand and gravel washing device includes the following steps:

[0019] S1. Pour the sand and gravel to be cleaned into the washing basket, where the sand and gravel are evenly distributed on a filter plate. Soak the sand and gravel first. After soaking, prepare to start the cleaning operation. Start the rotating device to make it rotate forward. The motor output drives the driven shaft to rotate forward, which in turn drives the follower shaft to rotate forward. Due to the one-way thread on the follower shaft and the threaded connection of the displacement sleeve, the displacement sleeve begins to move downward. The displacement sleeve drives the washing basket to move downward synchronously through the fixed rod. The sand and gravel in the washing basket are rinsed up and down in the water as the washing basket moves downward, initially removing some impurities. When more fine cleaning of the sand and gravel is required... When the rotating device is reversed, the motor drives the driven shaft to reverse, and the follower shaft also reverses. The displacement sleeve moves upward, and the scouring cage is lifted upward. At the same time, the drive gear drives the driven gear to rotate as the driven shaft reverses. The driven gear drives the central rod to rotate, and the three cleaning sleeves on the central rod rotate accordingly. This, in turn, drives the three sets of first and second cleaning roller brushes to rotate, uniformly brushing the sand and gravel on the first, second, and third filter plates, further removing impurities from the sand and gravel. The filter plates with different pore sizes play a role in layered filtration. After multiple rinsing and brushing, the cleanliness of the sand and gravel is improved.

[0020] S2. When the sand and gravel washing process reaches a certain stage or is completed, the control system activates the sample collection unit. The sampling hopper moves to a predetermined position via an electric track, collecting a certain amount of sand and gravel samples. The automatic weighing device records the mass data of the collected samples and transmits this data to the control system, ensuring that the collected samples are representative and the mass data is accurate. The collected sand and gravel samples enter the transparent cylindrical dissolving tank of the dissolving and stirring unit through a pipe. The electric valve at the feed inlet is closed, and a known volume of deionized water is added through the water inlet. Then, the stirring paddle and heating device are activated. The stirring paddle stirs the solution at a certain speed, allowing the soluble impurities in the sand and gravel to fully dissolve in the water, forming a homogeneous mixed solution, preparing for subsequent testing. After the stirring and heating process is completed, the solution is left to stand for a period of time to allow the suspended particles in the solution to settle and stabilize. Then, the conductivity is measured. The high-precision conductivity sensor and turbidity detection module of the module measure the solution respectively. The conductivity sensor measures the conductivity value of the solution, and the turbidity sensor measures the turbidity value of the solution. The measurement data is transmitted to the data acquisition card in real time. The data acquisition card transmits the received conductivity and turbidity values ​​to the computer control system. The data analysis module built into the computer control system compares the measured values ​​with the standard conductivity and turbidity value ranges of washed sand and gravel that are stored in the database. If both the conductivity and turbidity values ​​are within the corresponding standard ranges, the sand and gravel are determined to be clean. If either value exceeds the standard range, the sand and gravel are determined to be not clean enough and require further cleaning or adjustment of the cleaning process. The judgment result is displayed intuitively on the screen, and the operator can take corresponding measures based on the displayed results.

[0021] S3. After the sand and gravel have been cleaned and tested to meet the cleaning standards, start the waterproof oven inside the overflow cover. The hot air blown out of the oven passes upward through each layer of filter plates to dry the sand and gravel on the filter plates. The oven continues to run, and the hot air takes away the moisture in the sand and gravel, making the sand and gravel gradually dry. During the drying process, turn the sand and gravel over appropriately to speed up the drying process and ensure that the sand and gravel reach the required degree of dryness for subsequent storage and use.

[0022] S4. After the drying process is completed, ensure that the sand and gravel are in a stable state and prepare for the weighing operation. The device is in a stopped state and all components are stationary. When the sand and gravel are in the washing basket, the automatic weighing device measures the mass of the sand and gravel again and transmits the data to the control system for recording and subsequent processing. Operators can also manually record the weighing data. After completing the weighing and subsequent processing, after recording the final mass of the sand and gravel, open the washing tank, take out the washed, dried and weighed sand and gravel, and package or transport it to the next production stage according to actual needs. At the same time, clean and maintain the device to prepare for the next sand and gravel washing operation.

[0023] The beneficial effects of this invention are as follows:

[0024] This invention uses a device driven by a motor to both wash the sand and gravel in the rinsing basket by moving it up and down, and to make the cleaning roller brush rotate synchronously as the rinsing basket rises, thus brushing the sand and gravel on each filter plate. This composite cleaning action, compared with a single cleaning method, can more comprehensively and powerfully remove different types of impurities, such as sand, gravel, mud, clay, etc., significantly improving the degree of cleaning.

[0025] Equipped with a filter plate consisting of one layer of coarse pores, two layers of fine pores, and three layers of fine pores, the filter plate performs layered filtration of sand and gravel throughout the washing process. The first layer of coarse pore filter plate intercepts large sand and gravel particles first, the middle layer of filter plate captures medium-sized mica, and the three layers of fine pores do not miss fine soil and clay. Each layer performs its own function to accurately screen out impurities and gradually improve the purity of sand and gravel. The sieve holes of the first and second layers can be replaced according to different requirements to facilitate the implementation of more testing solutions.

[0026] Built-in detection device uses conductivity detection module and turbidity detection module to measure the cleanliness of sand and gravel from the aspects of soluble impurities and insoluble impurities respectively. Conductivity reflects the content of soluble impurities such as salt, while turbidity reflects the status of insoluble particles such as mud, sand and gravel. Multi-dimensional detection makes the judgment of the degree of cleaning more accurate.

[0027] The entire process of sample collection, dissolution and stirring, and data detection and analysis is automated. The control system connects each link in an orderly manner, reduces human operation errors, and quickly outputs accurate judgments on the washing status of sand and gravel. This allows operators to adjust the washing process in a timely manner and ensures stable high quality of finished sand and gravel.

[0028] After the sand and gravel washing is completed and meets the standards, the device uses a waterproof oven inside the overflow cover to directly dry the sand and gravel in the washing tank. The hot air blown out of the oven penetrates each filter plate and quickly removes the moisture. It can also turn the sand and gravel over during the drying process to accelerate the drying. This simplifies the process, saves the trouble of transporting the sand and gravel to the drying equipment, and avoids secondary pollution during transportation. The dried sand and gravel can be packaged immediately or enter the next process.

[0029] Integrating sand and gravel washing, testing, and drying into one process, each step works closely together and seamlessly connects. From raw material input to finished product output, it is completed in one stop, eliminating the need to transfer sand and gravel between multiple independent equipment. This not only reduces site occupation and equipment investment costs but also shortens the overall production cycle, greatly improving production efficiency and meeting the needs of large-scale, high-efficiency sand and gravel washing production. Attached Figure Description

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 For the present invention Figure 1 A magnified structural diagram at point A;

[0033] Figure 3 This is a schematic diagram of the structure of the first-layer filter plate, the second-layer filter plate, and the third-layer filter plate of the present invention;

[0034] Figure 4 This is a schematic diagram of the installation structure of the waterproof drying oven of the present invention;

[0035] Figure 5 This is a schematic diagram of the planar structure of the detection device of the present invention;

[0036] Figure 6 This is a schematic diagram of the structural framework of the detection device of the present invention.

[0037] In the diagram: 1. Rotating device; 2. Driven shaft; 3. Driving gear; 4. Fixed rod; 5. Displacement sleeve; 6. One-way thread; 7. Follower shaft; 8. Base plate; 9. Dual inlet / outlet port; 10. Cleaning tank; 11. Washing basket; 12. Driven gear; 13. Central rod; 14. First cleaning roller brush; 15. Cleaning sleeve; 16. Second cleaning roller brush; 17. First layer filter plate; 18. Second layer filter plate; 19. Third layer filter plate; 20. Central hole; 21. Waterproof drying oven; 22. Overflow cover; 23. Sand baffle plate;

[0038] 100. Detection device;

[0039] 110. Control system; 120. Movable sampling hopper; 122. Electric track; 124. Automatic weighing device;

[0040] 300. Dissolving and stirring unit; 310. Dissolving tank; 320. Sealing cover; 330. Pipeline; 340. Electric valve; 350. Stirring paddle; 360. Heating device;

[0041] 400. Conductivity detection module; 410. High-precision conductivity sensor;

[0042] 500. Turbidity detection module; 510. Turbidity sensor;

[0043] 600. Data processing and display unit; 610. Data acquisition card; 620. Computer control system; 630. Display screen; 640. Data analysis module. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] like Figures 1-6 As shown, this embodiment proposes a rotating device 1, a cleaning tank 10, and a detection device 100;

[0047] The rotating device 1 is a motor. A driven shaft 2 is fixed on the output end of the motor. A drive gear 3 is fixedly sleeved on the driven shaft 2. A follower shaft 7 is fixed at the end of the driven shaft 2. A one-way thread 6 is opened on the follower shaft 7. A displacement sleeve 5 is threadedly connected to the one-way thread 6. The displacement sleeve 5 is rotatably mounted on the follower shaft 7. A fixing rod 4 is fixed on one side of the displacement sleeve 5. A scouring pad 11 is fixed at the end of the fixing rod 4. A base plate 8 is provided at the tail end of the follower shaft 7. One side of the base plate 8 is fixed on the washing tub 10.

[0048] A driven gear 12 is meshed with the driving gear 3. A central rod 13 is fixedly sleeved on the driven gear 12. Three cleaning sleeves 15 are fixedly sleeved on the central rod 13. A first cleaning roller brush 14 is rotatably installed on one side of each of the three cleaning sleeves 15, and a second cleaning roller brush 16 is rotatably installed on the other side of each of the three cleaning sleeves 15.

[0049] The rinsing basket 11 contains a filter plate 17, a second filter plate 18 is installed below the first filter plate 17, a third filter plate 19 is installed below the second filter plate 18, a sand-blocking plate 23 is installed below the third filter plate 19, an overflow cover 22 is provided below the sand-blocking plate 23, and a waterproof drying oven 21 is installed inside the overflow cover 22.

[0050] A central hole 20 for the central rod 13 to pass through is provided in the middle of the first layer filter plate 17, the second layer filter plate 18 and the third layer filter plate 19. The tail end of the central rod 13 is rotatably installed on the bottom inner wall of the cleaning tank 10. A dual-purpose outlet 9 is provided on one side of the bottom of the cleaning tank 10.

[0051] When the rotating device 1 is started, it rotates clockwise, which drives the driven shaft 2 to rotate clockwise. The driven shaft 2 drives the follower shaft 7 to rotate clockwise, thereby causing the displacement sleeve 5 to move downward. The displacement sleeve 5 drives the fixed rod 4 to move downward, and the fixed rod 4 drives the rinsing cage 11 to move downward. Conversely, when the rotating device 1 rotates counterclockwise, the rinsing cage 11 moves upward, which is used to rinse the sand and gravel in the rinsing cage 11. At the same time as the rinsing cage 11 moves upward, the driving gear 3 drives the driven gear 12 to rotate. The driven gear 12 drives the central rod 13 to rotate. The central rod 13 drives the three cleaning sleeves 15 to rotate. The three cleaning sleeves 15 drive the three sets of first cleaning roller brushes 14 and second cleaning roller brushes 16 to rotate, which is used to uniformly brush the sand and gravel on the first layer filter plate 17, the second layer filter plate 18 and the third layer filter plate 19.

[0052] In this embodiment, the rotating device 1 serves as the power source for the entire sand washing device. It controls the movement of other components through forward and reverse rotation, thereby achieving different sand washing actions. It is the core driving component for the device's operation. The driven shaft 2 connects the motor output to the driving gear 3 and the follower shaft 7, transmitting the motor's power to the driving gear 3, causing it to rotate. Simultaneously, it transmits power to the follower shaft 7, enabling it to rotate accordingly when the motor rotates forward and backward, thus achieving the displacement movement of subsequent components. The driving gear 3 meshes with the driven gear 12. When the driven shaft 2 rotates, the driving gear 3 rotates accordingly, transmitting power to the driven gear 12, thus playing a role in power transmission and conversion. This controls the up-and-down movement of the washing basket 11 and the rotation of the cleaning roller brush. As a key component for coordination, the one-way thread 6 on the follower shaft 7 is engaged with the displacement sleeve 5. When the follower shaft 7 rotates forward or reverse under the drive of the motor, the displacement sleeve 5 can move up and down under the action of the thread. The displacement sleeve 5 is rotatably mounted on the follower shaft 7, ensuring that it does not rotate with the follower shaft 7 while moving up and down, thereby stably driving the fixed rod 4 and the rinsing cage 11 to move up and down, realizing the up and down rinsing of sand and gravel. The fixed rod 4 connects the displacement sleeve 5 and the rinsing cage 11, transmitting the up and down movement of the displacement sleeve 5 to the rinsing cage 11, so that the rinsing cage 11 can move up and down in the washing tub 10. The rinsing cage 11 is used to hold sand and gravel. During the up and down movement, the sand and gravel are rinsed in water to initially remove impurities.

[0053] Meanwhile, the filter plate structure inside the rinsing cage 11 can perform layered filtration of sand and gravel. The driven gear 12 rotates under the drive of the driving gear 3, driving the central rod 13 to rotate. The central rod 13 serves as the mounting shaft for the cleaning sleeve 15, transmitting power to the cleaning sleeve 15, thus enabling the cleaning sleeve 15 to rotate. This, in turn, drives the cleaning roller brush to clean the sand and gravel on the filter plates. The cleaning sleeve 15 is fixed on the central rod 13 and rotates with the rotation of the central rod 13, playing the role of transmitting power. The first cleaning roller brush 14 and the second cleaning roller brush 16 are respectively installed on both sides of the cleaning sleeve 15. When the cleaning sleeve 15 rotates, the roller brushes rotate accordingly, which can evenly brush the sand and gravel on the first layer filter plate 17, the second layer filter plate 18, and the third layer filter plate 19, effectively removing impurities such as mud and mica from the sand and gravel. This works in conjunction with the rinsing action of the rinsing cage 11 to improve the cleaning effect of washing sand and gravel. The first layer filter plate 17 is used for preliminary coarse filtration of sand and gravel, mainly passing through... The first layer of filter plate 18 filters out larger particles of sand and gravel; the second layer of filter plate 18 has a smaller pore size than the first layer of filter plate 17 and is used to filter medium-sized impurities such as mica; the third layer of filter plate 19 has an even smaller pore size and performs fine filtration to filter out fine impurities such as mud and clay. Through the layered filtration of the three layers of filter plate 19, the purity of the sand and gravel can be gradually improved. At the same time, the central hole 20 in the middle of the filter plate is used to allow the central rod 13 to pass through, ensuring that the cleaning roller brush can clean the sand and gravel on each layer of filter plate. The sand and gravel baffle plate 23 is installed under each layer of filter plate to prevent sand and gravel from falling, ensuring that the sand and gravel are filtered and cleaned on the filter plate. It also provides a certain support to ensure that the filter plate can be stably installed in the washing basket 11. The overflow bottom cover 22 is used to collect wastewater after washing the sand and gravel to prevent wastewater from overflowing. The waterproof drying oven 21 installed inside can blow air upwards after washing the sand and gravel to dry the sand and gravel on the filter plate to a suitable degree of dryness for subsequent storage and use.

[0054] Example 2

[0055] like Figures 1-6 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that a detection device 100 be installed inside the cleaning tank 10, and the detection device 100 includes a control system 110;

[0056] The sample collection unit includes a movable sampling hopper 120 and an electric track 122. The sampling hopper is connected to the control system 110 via the electric track 122, and an automatic weighing device 124 is connected below the sampling hopper.

[0057] The dissolving and stirring unit 300 is composed of a transparent cylindrical dissolving tank 310. The top of the dissolving tank 310 is provided with a sealing cover 320. The sealing cover 320 has a feed inlet and a water inlet. The feed inlet is connected to the discharge outlet of the sampling hopper through a pipe 330. An electric valve 340 is provided on the pipe 330. The dissolving tank 310 is equipped with a stirring paddle 350 and a heating device 360.

[0058] The detection unit includes a conductivity detection module 400 and a turbidity detection module 500. The conductivity detection module 400 has a high-precision conductivity sensor 410 installed in the solution inside the dissolving tank 310, and the turbidity detection module 500 has a turbidity sensor 510 installed on the side of the dissolving tank 310.

[0059] The data processing and display unit 600 includes a data acquisition card 610 and a computer control system 620. The data acquisition card 610 is connected to the conductivity sensor and the turbidity sensor 510. The computer control system 620 is connected to a display screen 630 and has a built-in data analysis module 640.

[0060] In this embodiment, the control system 110, as the core control part of the detection device 100, coordinates and directs the work of each unit. It receives data information from other components (such as the automatic weighing device 124, sensors, etc.), sends instructions according to preset programs and rules, controls the movement of the sampling hopper, the opening and closing of the electric valve 340, the operation of the stirring paddle 350 and the heating device 360, as well as the processing of detection data and the display of results, ensuring that the entire detection process proceeds in an orderly manner. The sampling hopper is used to collect samples from the sand and gravel (such as sand and gravel on the washing basket 11 or filter plate) in the washing tank 10. The electric track 122 provides a moving path for the sampling hopper, enabling it to accurately reach the predetermined sampling position under the instructions of the control system 110, ensuring that the collected samples are representative and can truly reflect the quality of the sand and gravel after washing. The automatic weighing device 124 is connected below the sampling hopper and is used to accurately measure the mass of the collected sand and gravel samples and transmit the mass data to the control system 110, providing basic data for subsequent operations such as determining the amount of water added and analyzing the impurity content during the dissolution and stirring process. To ensure the accuracy and scientific rigor of the testing process, a transparent cylindrical dissolving tank 310 serves as the container for dissolving and stirring sand and gravel samples. Its transparent material facilitates observation of the internal solution, providing a closed environment for the mixing of sand and gravel samples and water, and the dissolution of impurities, preventing external factors from interfering with the testing process. The sealing cap 320 ensures the airtightness of the dissolving tank 310. The feed inlet is used to receive the sand and gravel samples collected by the sampling hopper, and the water inlet is used to add an appropriate amount of water to dissolve soluble impurities in the sand and gravel. The electric valve 340 is installed on the pipeline 330, which can precisely control the feeding process of sand and gravel samples and water, and operate accurately according to the instructions of the control system 110 to ensure that the amount of sample and water meets the testing requirements. The stirring paddle 350 stirs the mixed solution of sand and gravel and water inside the dissolving tank 310, so that the soluble impurities in the sand and gravel can be fully and uniformly dissolved in the water. The heating device 360 ​​can accelerate the dissolution process of impurities. By appropriately increasing the solution temperature, some impurities that dissolve slowly at room temperature can be dissolved more quickly, improving the testing efficiency and ensuring the consistency and stability of the dissolution process.

[0061] The conductivity detection module 400 and the high-precision conductivity sensor 410 are installed in the solution inside the dissolving tank 310 to measure the conductivity of the solution. Since impurities in the sand and gravel (such as salt) affect the conductivity of the solution, measuring the conductivity can indirectly reflect the content of soluble impurities in the sand and gravel, thereby judging the cleanliness of the sand and gravel. The turbidity detection module 500 and the turbidity sensor 510 installed on the side of the dissolving tank 310 are used to measure the turbidity of the solution. The turbidity of the solution is mainly related to the insoluble impurities in the sand and gravel (such as soil particles). The higher the turbidity value, the more insoluble impurities are in the solution, which can further infer that the cleanliness of the sand and gravel is insufficient. Detecting turbidity provides another important basis for judging whether the sand and gravel is clean. The data acquisition card 610 serves as an intermediate hub for data collection. The system receives electrical signals from the conductivity sensor and turbidity sensor 510, converts them into digital signals, and transmits them to the computer control system 620. This ensures accurate acquisition and transmission of detection data, providing a reliable data source for subsequent data processing. The computer control system 620 receives data from the data acquisition card 610 and, through its built-in data analysis module 640, compares and analyzes the measured conductivity and turbidity values ​​with the preset standard range for cleaned sand and gravel. Based on the comparison results, it determines whether the sand and gravel are clean and displays the results and related data on the display screen 630, providing a clear view for the operator. The operator can then use the information on the display screen 630 to understand the cleaning quality of the sand and gravel and decide whether further cleaning is needed.

[0062] Example 3

[0063] like Figures 1-6 As shown, based on the same concept as embodiments 1 and 2 above, this embodiment also proposes a first layer of filter plate 17 for coarse pore filtration, a second layer of filter plate 18 for fine pore filtration, and a third layer of filter plate 19 for fine filtration. The first layer of filter plate 17 is used to filter sand and gravel, the second layer of filter plate 18 is used to filter mica, and the third layer of filter plate 19 is used to filter soil and clay.

[0064] The present invention also provides a method for operating a multifunctional sand and gravel washing device, comprising the following steps:

[0065] S1. Pour the sand and gravel to be cleaned into the washing basket 11. The sand and gravel are evenly distributed on a layer of filter plates 17. Soak the sand and gravel first. After soaking, prepare to start the cleaning operation. Start the rotating device 1 to rotate forward. The motor output drives the driven shaft 2 to rotate forward, which in turn drives the follower shaft 7 to rotate forward. Due to the threaded connection between the one-way thread 6 on the follower shaft 7 and the threaded connection with the displacement sleeve 5, the displacement sleeve 5 begins to move downward. The displacement sleeve 5 drives the washing basket 11 to move downward synchronously through the fixed rod 4. The sand and gravel in the washing basket 11 are rinsed up and down in the water as the washing basket 11 moves downward, initially removing some impurities. When a more thorough cleaning of the sand and gravel is required, reverse the rotating device 1. The motor drives the driven shaft 2 to rotate in reverse, and the follower shaft 7 also rotates in reverse. Reversing the rotation, the displacement sleeve 5 moves upward, the rinsing cage 11 is lifted upward, and at the same time, the drive gear 3 drives the driven gear 12 to rotate as the driven shaft 2 reverses. The driven gear 12 drives the central rod 13 to rotate, and the three cleaning sleeves 15 on the central rod 13 rotate accordingly, which in turn drives the three sets of first cleaning roller brushes 14 and second cleaning roller brushes 16 to rotate, uniformly brushing the sand and gravel on the first layer filter plate 17, the second layer filter plate 18 and the third layer filter plate 19, further removing impurities from the sand and gravel. The filter plates with different pore sizes play a role in layered filtration. The coarse pores of the first layer filter plate 17 filter sand and gravel, the fine pores of the second layer filter plate 18 filter mica, and the fine filtration of the third layer filter plate 19 is used to filter mud and clay. After multiple rinsing and brushing, the cleanliness of the sand and gravel is improved.

[0066] S2. After the sand washing process reaches a certain stage or is completed, the control system 110 starts the sample collection unit. The sampling hopper moves to a predetermined position via the electric track 122 to collect a certain amount of sand sample. The automatic weighing device 124 records the mass data of the collected sample and transmits the data to the control system 110 to ensure that the collected sample is representative and the mass data is accurate. The collected sand sample enters the transparent cylindrical dissolving tank 310 of the dissolving and stirring unit 300 through the pipe 330. The feed inlet electric valve 340 is closed, and a known volume of deionized water is added from the water inlet. Then, the stirring paddle 350 and the heating device 360 ​​are started. The stirring paddle 350 stirs the solution at a certain speed to fully dissolve the soluble impurities in the sand in the water, forming a uniform mixed solution to prepare for subsequent testing. After the stirring and heating process is completed, the solution is left to stand for a period of time to allow the suspended particles in the solution to settle and stabilize. Then, the conductivity is measured. The high-precision conductivity sensor 410 of module 400 and the turbidity sensor 510 of turbidity detection module 500 measure the solution respectively. The conductivity sensor measures the conductivity value of the solution, and the turbidity sensor 510 measures the turbidity value of the solution. The measurement data is transmitted to the data acquisition card 610 in real time. The data acquisition card 610 transmits the received conductivity and turbidity values ​​to the computer control system 620. The data analysis module 640 built into the computer control system 620 compares and analyzes the measured values ​​with the standard conductivity and turbidity value ranges of washed sand and gravel that are stored in the database in advance. If both the conductivity and turbidity values ​​are within the corresponding standard ranges, it is determined that the sand and gravel have been cleaned. If either value exceeds the standard range, it is determined that the sand and gravel have not met the washing requirements and need to be further cleaned or the washing process needs to be adjusted. The judgment result is displayed intuitively on the display screen 630, and the operator can take corresponding measures based on the display results.

[0067] S3. After the sand and gravel have been cleaned and tested to meet the cleaning standards, start the waterproof drying oven 21 inside the overflow bottom cover 22. The air blown out of the oven passes upward through each layer of filter plates to dry the sand and gravel on the filter plates. The oven continues to run, and the air carries away the moisture in the sand and gravel, making the sand and gravel gradually dry. During the drying process, the sand and gravel are turned over appropriately to speed up the drying speed and ensure that the sand and gravel reach the required degree of dryness for subsequent storage and use.

[0068] S4. After the drying process is completed, ensure that the sand and gravel are in a stable state and prepare for the weighing operation. The device is in a stopped state and all components are stationary. When the sand and gravel are in the washing basket 11, the automatic weighing device 124 measures the mass of the sand and gravel again and transmits the data to the control system for recording and subsequent processing. The operator can also manually record the weighing data to complete the weighing and subsequent processing. After recording the final mass of the sand and gravel, open the washing tank 10, take out the washed, dried and weighed sand and gravel, and package or transport it to the next production stage according to actual needs. At the same time, clean and maintain the device to prepare for the next sand and gravel washing operation.

[0069] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional sand washing device, characterized by, The utility model relates to a kind of sandstone cleaning device, including: Rotary device, cleaning barrel and detection device; The rotary device is motor, and motor's output end is fixed with driven shaft, driven shaft is fixed with driving gear on the sleeve, and driven shaft end is fixed with follow-up shaft, one-way thread is opened in follow-up shaft, displacement sleeve is threadedly connected on one-way thread, displacement sleeve is rotatably installed on follow-up shaft, one side of displacement sleeve is fixed with fixed rod, and fixed rod end is fixed with wash cage, tail end of follow-up shaft is equipped with bottom plate, and one side of bottom plate is fixed on cleaning barrel; Driving gear is meshed and connected with driven gear on the driving gear, and driven gear is fixed with center rod on the sleeve, three cleaning sleeves are fixed with center rod on the sleeve, and first cleaning roller brush is rotatably installed on one side of three cleaning sleeves respectively, and second cleaning roller brush is rotatably installed on the other side of three cleaning sleeves respectively; Wash cage is equipped with a layer of filter plate, and two layers of filter plate are installed below a layer of filter plate, three layers of filter plate are installed below two layers of filter plate, and sandstone blocking plate is installed below three layers of filter plate, overflow bottom cover is equipped below sandstone blocking plate, waterproof oven is installed in overflow bottom cover, the height of wash cage is lower than the height of cleaning barrel, and the height difference is greater than or equal to 150mm; Center hole for center rod to pass through is opened in the middle position of a layer of filter plate, two layers of filter plate and three layers of filter plate, and tail end of center rod is rotatably installed on the inner wall of the bottom of cleaning barrel, and out-injection dual-purpose port is opened in the bottom side of cleaning barrel. Wherein, start rotary device, rotary device is positive, rotary device drives driven shaft to rotate forward, driven shaft drives follow-up shaft to rotate forward, to drive displacement sleeve to move downwards, displacement sleeve drives fixed rod to move downwards, fixed rod drives wash cage to move downwards, and vice versa, rotary device is reversed, wash cage moves upwards, for the up and down wash of wash cage, when wash cage moves upwards, driving gear drives driven gear to rotate, driven gear drives center rod to rotate, center rod drives three cleaning sleeves to rotate, three cleaning sleeves drive three groups of first cleaning roller brush and second cleaning roller brush to rotate, for the even rolling brush of sandstone on a layer of filter plate, two layers of filter plate and three layers of filter plate; The detection device is installed in the cleaning barrel, and the detection device comprises a control system; The sample collection unit comprises a movable sampling bucket and an electric track, the sampling bucket is connected to the control system through the electric track, and an automatic weighing device is connected below the sampling bucket; The dissolution stirring unit is composed of a transparent cylindrical dissolution tank, the top of the dissolution tank is provided with a sealing cover, the sealing cover is provided with a feeding port and a water inlet, the feeding port is connected to the discharge port of the sampling bucket through a pipeline, an electric valve is arranged on the pipeline, and a stirring paddle and a heating device are arranged in the dissolution tank. The detection unit comprises an electric conductivity detection module and a turbidity detection module, the electric conductivity detection module comprises a high-precision electric conductivity sensor installed in the solution in the dissolution tank, and the turbidity detection module comprises a turbidity sensor installed on the side of the dissolution tank. The data processing and display unit comprises a data acquisition card and a computer control system, the data acquisition card is connected to the electric conductivity sensor and the turbidity sensor, the computer control system is connected to a display screen, and the computer control system is provided with a data analysis module.

2. The multifunctional sand washing device according to claim 1, characterized in that, The first layer filter plate is coarse hole filtering, the second layer filter plate is fine hole filtering, and the third layer filter plate is fine filtering.

3. A method for operating a multifunctional sandstone cleaning device according to claim 2, characterized in that The method comprises the following steps: S1, pour the sand and gravel to be cleaned into the cage, and uniformly distribute the sand and gravel on the first layer filter plate; first, soak the sand and gravel; after soaking, start the rotating device to rotate in the forward direction; the motor output drives the driven shaft to rotate in the forward direction, and then drives the driven shaft to rotate in the forward direction; due to the threaded connection relationship between the one-way thread on the driven shaft and the displacement sleeve, the displacement sleeve starts to move downward; the displacement sleeve drives the cage to move downward synchronously through the fixed rod; the sand and gravel in the cage are washed up and down in the water, and part of the impurities is removed; when more precise cleaning of the sand and gravel is required, reverse the rotating device; the motor drives the driven shaft to reverse, and the driven shaft also reverses; the displacement sleeve moves upward; the cage is lifted upward; the driving gear drives the driven gear to rotate when the driven shaft reverses; the driven gear drives the center rod to rotate; the three cleaning sleeves on the center rod rotate, and then drive the three groups of first and second cleaning roller brushes to rotate; the sand and gravel on the first, second and third layer filter plates are uniformly brushed, and the impurities in the sand and gravel are further removed; the filter plates with different hole diameters play a role in layered filtering; the first layer filter plate filters the sand and gravel with coarse holes; the second layer filter plate filters the mica with fine holes; the third layer filter plate is used for filtering the soil and clay with fine holes; after multiple washing and brushing, the cleanliness of the sand and gravel is improved. S2, after the sand washing process reaches a certain stage or is completed, the control system starts the sample collection unit, the sampling bucket moves to the predetermined position through the electric track, a certain amount of sand sample is collected, the automatic weighing device records the mass data of the collected sample and transmits the data to the control system, ensuring that the collected sample is representative and the mass data is accurate, the collected sand sample enters the transparent cylindrical dissolving tank of the dissolving and stirring unit through the pipeline, the feed inlet electric valve is closed, a known volume of deionized water is added from the water inlet, then the stirring paddle and the heating device are started, the stirring paddle stirs the solution at a certain speed, so that the soluble impurities in the sand are fully dissolved in the water to form a uniform mixed solution, preparing for subsequent detection, after the stirring and heating process is completed, the static solution is left for a period of time to make the suspended particles in the solution precipitate stably, then the high-precision conductivity sensor of the conductivity detection module and the turbidity sensor of the turbidity detection module measure the solution respectively, the conductivity sensor measures the conductivity value of the solution, and the turbidity sensor measures the turbidity value of the solution, the measurement data is transmitted to the data acquisition card in real time, the data acquisition card transmits the received conductivity value and turbidity value to the computer control system, and the data analysis module built in the computer control system compares and analyzes the measurement value with the standard conductivity value range and turbidity value range stored in the database in advance, if both the conductivity value and the turbidity value are within the corresponding standard range, it is determined that the sand is clean, if any of the values exceeds the standard range, it is determined that the sand does not meet the cleaning requirement and needs to be further cleaned or the cleaning process needs to be adjusted, and the determination result is displayed on the display screen, so that the operator can take corresponding measures according to the display result; S3, when the sand is cleaned and detected to meet the cleaning standard, the waterproof oven inside the overflow bottom cover is started, the wind blown by the oven passes through each layer of filter plate upwards, and the sand on the filter plate is blown dry, the oven continues to operate, the wind carries away the moisture in the sand, so that the sand is gradually dried, and in the blowing and drying process, the sand is appropriately turned over to speed up the drying speed, so that the sand meets the required drying degree, so as to facilitate subsequent storage and use; S4, after the blowing and drying process is completed, the sand is ensured to be in a stable state, and the weighing operation is prepared, the device is in a stopped running state, and each part is stationary, when the sand is in the washing basket cage, the automatic weighing device measures the mass of the sand again and transmits the data to the control system for recording and subsequent processing, the operator can also manually record the weighing data, completes the weighing and subsequent processing, after recording the final mass of the sand, the cleaning barrel is opened, the sand washed, blown dry and weighed is taken out, packaged or conveyed to the next production link according to the actual demand, and the device is cleaned and maintained, preparing for the next sand washing operation.

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