A rotatable water screen integrated device for laboratory

Abstract

The application discloses a rotatable water screen integrated device for laboratory, and belongs to the technical field of mining engineering and mine rock and soil engineering. The device comprises a multilayer circular screen device, an operation table device and the like. A conveyor belt is arranged in the middle of the left side of the bottom operation table. A supporting device and a weighing device are sequentially arranged on the right side of the conveyor belt. The supporting device is connected with a horizontally arranged metal suspension rod at the top. The multilayer circular screen device is placed on the conveyor belt. A spraying device is installed on the metal suspension rod. A rotary lifting device is installed on one end of the metal suspension rod close to a telescopic long supporting rod. A controller is installed on the bottom operation table and connected with the multilayer circular screen device, the operation table device and the rotary lifting device. The device is used for screening sand by the water screen method and relates to a rotatable drying and weighing integrated adjustable pressure spraying sand screening technology. The water screen efficiency is improved by a relatively optimal mode, the manual intervention of the laboratory is reduced, the reliability is high, the water screen speed is accelerated, and time and labor are saved.

Description

Technical Field

[0001] This invention relates to an integrated rotatable water sieve device for laboratory use, belonging to the technical field of mining engineering and mine geotechnical engineering. Background Technology

[0002] Sieve analyzers are essential instruments for sample pretreatment in modern laboratories. They can completely replace the traditional manual method of sieving samples using analytical sieves, improving laboratory efficiency. They are widely used in laboratories in industries such as soil science, environmental science, pharmaceuticals, metallurgy, food processing, chemicals, and materials science, and are commonly used for determining, separating, and classifying the particle size of powders, small lumps, loose materials, and suspended solids. Sieve analysis is the process of passing groups of loose materials of different particle sizes through a single or multiple layers of evenly perforated sieves to separate them into several different grades. Currently, there are many methods for measuring particle size, such as sieve analysis, sedimentation, microscopy, Malvern laser particle size analysis, Coulter fully automated particle size analysis, particle counter analysis, and inductive methods. In scientific research in laboratories, sieve analysis and Malvern laser particle size analysis are two commonly used particle size measurement methods.

[0003] There are two types of sieving methods: dry and wet. Dry sieving is generally used to determine particle size distribution. Wet sieving avoids the clogging of sieve openings by very fine particles. If the sample contains a high amount of water, especially if the material has fine particles, and if mixing with water is permissible, and the particles have strong agglomeration, the wet method is preferable. Furthermore, the wet method is unaffected by material temperature and atmospheric humidity, and it can improve operating conditions, resulting in higher accuracy than dry sieving. Therefore, both wet and dry methods are listed as national standard methods for determining the fineness of cement and raw materials.

[0004] Screening machinery is a type of mechanical equipment that uses rotation, vibration, reciprocating motion, shaking, etc., to separate various raw materials and primary products into several grades according to the particle size, or to remove moisture, impurities, etc., before further processing and improving product quality.

[0005] There are many types of screening machinery. In the mineral processing industry, based on their structure and motion characteristics, they can be classified into the following types: 1) Fixed screens: including fixed grid screens, fixed bar screens, cantilever bar screens and arc screens.

[0006] 2) Cylindrical sieves: There are cylindrical sieves, conical sieves and pyramidal sieves.

[0007] 3) Circular vibrating screen: Circular vibrating screens are mainly used in quarries to screen sand and gravel.

[0008] 4) Linear vibrating screen: Linear vibrating screens are widely used in the mining industry.

[0009] 5) Equal thickness sieve: The equal thickness sieve method is also called the large thickness sieve method.

[0010] 6) Roller screen: mainly used for grading raw coal in coal mines.

[0011] 7) Resonance screen: Common vibrating screens operate far from the resonance range in order to maintain stable working conditions.

[0012] 8) Probability screens: including rotary probability screens, linear vibrating probability screens, and equal thickness probability screens.

[0013] 9) Shaking screen: mainly used for mineral classification, dehydration and demediuming.

[0014] 10) High-frequency vibrating screen and electromagnetic vibrating screen: mainly used for screening fine particulate materials.

[0015] As for sieving methods, water sieving is more accurate and the measured particle size distribution is more precise. However, water sieving in the laboratory is time-consuming and labor-intensive, and the existing simple water sieving test equipment in the laboratory is relatively rudimentary. Although water sieving is more accurate than dry sieving, most people give up the more accurate water sieving method for the sake of saving time and effort. Summary of the Invention

[0016] To address the problems and shortcomings of the existing technology, the present invention provides a laboratory-use rotatable dry / wet dual-use water sieve device.

[0017] The technical solution adopted in this invention is: a laboratory rotatable water sieve integrated device, including a multi-layer circular sieve device 3, an operating table device, a spray device 2, a rotating lifting device 54, and a controller; The operating platform device includes a bottom operating platform 4. A conveyor belt 15 is located in the middle of the left side of the bottom operating platform 4. A support device and a weighing device 9 are arranged sequentially on the right side of the conveyor belt 15. The support device includes a base and a telescopic long support rod 11 fixed above the base. The top of the telescopic long support rod 11 is connected to a horizontally arranged metal suspension rod 1. A multi-layer circular screen device 3 is placed on the conveyor belt 15. A spraying device 2 is installed on the metal suspension rod 1 and located directly above the multi-layer circular screen device 3. A rotating lifting device 54 is installed at one end of the metal suspension rod 1 near the telescopic long support rod 11. A controller is installed on the bottom operating platform 4 and is connected to the multi-layer circular screen device 3, the operating platform device, and the rotating lifting device 54 respectively.

[0018] Preferably, the bottom of the bottom operating platform 4 is provided with a pulley 6, and the pulley 6 is provided with a lock 5. A fully permeable plate 18 is provided on the right side of the conveyor belt 15 and below the rotating lifting device 54. The conveyor belt 15 and the fully permeable plate 18 are located on the same plane, and the two sides of the plane are connected to foldable plates 19 by a load-bearing frame 16. The load-bearing frame 16 and the foldable plate 19 are connected by a movable hinge 17. The conveyor belt 15 is connected to the controller, and the controller is connected to the conveyor belt switch 52. The conveyor belt switch 52 is installed on the bottom operating platform 4.

[0019] Preferably, the two sides of the base of the support device are connected to the bottom operating table 4 by fixing bolts 7. The weighing device 9 is embedded in one side and connected to the digital display screen 8. Short support rods 10 are fixed on both sides of the lower part of the telescopic long support rod 11. One end of the short support rod 10 is connected to the lower part of the telescopic long support rod 11, and the other end is fixed to the base of the support device. The short support rod 10, the telescopic long support rod 11, and the base of the support device form a triangle.

[0020] Specifically, the spraying device includes a spraying body, a booster engine 20, a water inlet pipe 21, a metal corrugated pipe 23, an indicator light 24, a spraying device switch button 25, and high-pressure water outlets 26. The booster engine 20 and the top of the spraying body are fixed on a metal suspension rod 1. One end of the water inlet pipe 21 is connected to a water source, and the other end is pressurized by the booster engine 20 and installed in the metal corrugated pipe 23 of the spraying body. The spraying body is equipped with an indicator light 24 and a spraying device switch button 25. The water outlet of the spraying body is provided with multiple high-pressure water outlets 26 at intervals. The water from the multiple high-pressure water outlets 26 is sprayed out from the tracks I 27, II 28, and III 29 arranged from the outside to the inside. The spraying device switch button 25 is used to adjust the different tracks.

[0021] Specifically, the multi-layer circular screen device 3 includes an upper screen I 30, a waterproof membrane 31, an embedded long rod 32, a metal handle 33, a stainless steel frame 34, an embedded short rod 35, and a circular embedded slide rail 36, and a lower screen II 37. The circular embedded slide rail 36 includes a meshing tooth 38, an outer ring 39, an inner ring 40, an embedded rod sliding groove 41, an inner ring sliding groove 42, and a locking tooth 43. The metal handle 33 is symmetrically welded to the stainless steel frame 34, which wraps around the screen I 30 and the screen II 37. Circular embedded rods facing opposite directions are placed at the bottom of the upper stainless steel frame 34 and the top of the lower stainless steel frame 34. The embedded long rod 32 and embedded short rod 35 are placed in the embedded rod sliding groove 41 of the circular embedded slide rail 36. The embedded rod sliding groove 41 is engaged in the inner ring sliding groove 42 by the locking teeth 43. The embedded rod sliding groove 41 rotates in the inner ring sliding groove 42 by the interlocking teeth 38 through the embedded locking teeth 43. The waterproof soft membrane 31 is placed between the upper stainless steel frame 34 and the lower stainless steel frame 34, and is attached to the outer ring 39 outside the embedded long rod 32 and embedded short rod 35. The circular embedded slide rail 36 is connected to the controller, and the controller is connected to the screening device button 55. The screening device button 55 is installed on the bottom operating table 4.

[0022] Specifically, the rotating lifting device 54 includes a spool 44, a micro motor 45, a sleeve 46, a rotating bearing 47, and a fixing rod 48. The metal suspension rod 1 is connected to the rotating lifting device 54 via the fixing rod 48. The rotating bearing 47 is installed above the fixing rod 48. The micro motor 45 is connected to the rotating bearing 47 below via the sleeve 46. The iron strand 13 is wound on the spool 44. The shaft of the spool 44 is connected to the micro motor 45. The micro motor 45 and the rotating bearing 47 are both connected to a controller. The controller is connected to the spool motor switch 49 and the rotating platform switch 50, respectively. The spool motor switch 49 and the rotating platform switch 50 are both installed on the bottom operating platform 4.

[0023] Specifically, a fan 14 is provided on the lower end face of the metal suspension rod 1. The fan 14 is located below the rotating lifting device 54 and is connected to the controller. The controller is connected to the fan switch 51, and the fan switch 51 is installed on the bottom operating platform 4.

[0024] The beneficial effects of this invention are: (1) The device described in this invention can realize the integrated operation of sieving, drying and weighing in the laboratory. It is low in cost and saves time and effort. The multi-layer sieving device can gradually complete the water sieving. The rotating water sieving device can make the sieving “comprehensive”. The manual stirrer is configured to make the sieving more thorough. After sieving, it can be dried quickly and weighed. The whole process can be completed in one go through one device, which effectively improves the overall efficiency of sieving-drying-weighing.

[0025] (2) This invention conforms to the concept of green operation. Compared with dry screening device, water screening is not only more accurate, but also avoids a lot of dust during screening. After screening, the water can be added to the water storage device for repeated reuse, which can improve the screening accuracy while meeting the requirements of environmental protection.

[0026] (3) The device described in this invention is mainly used in the laboratory. This device has greater advantages when screening a large amount of sand. When screening manually, it is necessary to stir evenly. When the amount of water to be screened is large, it is necessary to intervene manually to make the water screening even. Manual stirring is time-consuming and labor-intensive. This experimental device is operated by an automated rotary screening device and a multi-track spraying device, which reduces manual labor when screening a large amount of sand. The integrated device saves more time. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall device structure; Figure 2 This is a schematic diagram of a high-pressure spray device; Figure 3 This is a schematic diagram of the sprayer outlet. Figure 4 This is a schematic diagram of a multi-layer circular screen device; Figure 5 This is a sectional schematic diagram of the rotary slide rail device; Figure 6 This is a schematic diagram of the folded state of the folding plate; Figure 7 This is a schematic diagram of a rotary lifting device; Figure 8 A simplified diagram of a blower and agitator.

[0028] In the diagram: 1-Metal suspension rod; 2-High-pressure spray device; 3-Multi-layer circular screen device; 4-Bottom workbench; 5-Lock; 6-Pulley; 7-Fixing bolt; 8-Digital display screen; 9-Weighing platform; 10-Short support rod; 11-Telescopic long support rod; 12-Iron load-bearing hook; 13-Iron stranded wire; 14-Fan; 15-Conveyor belt; 16-Load-bearing frame; 17-Hinge; 18-Permeable plate; 19-Foldable plate; 20-Booster engine; 21-Water inlet pipe; 22-Hex bolt; 23-Metal flexible corrugated pipe; 24-Indicator light; 25-Sprayer on / off switch; 26-High-pressure water outlet; 27-Railway I; 28-Railway II; 2 9-Railway III; 30-Screen I (coarse); 31-Waterproof membrane; 32-Embedded long rod; 33-Metal handle; 34-Stainless steel frame; 35-Embedded short rod; 36-Circular embedded slide rail; 37-Screen II (fine); 38-Biting teeth; 39-Outer ring; 40-Inner ring; 41-Embedded rod sliding groove; 42-Inner ring sliding groove; 43-Slotted teeth; 44-Spool; 45-Micro motor; 46-Sleeve; 47-Rotary bearing; 48-Fixed rod; 49-Spool motor switch; 50-Rotary platform switch; 51-Fan switch; 52-Conveyor belt switch; 53-Manual stirrer; 54-Rotary lifting device; 55-Screening device button. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments, but the scope of protection of the present invention is not limited to the content described.

[0030] Example 1: As Figure 1-8 As shown, a laboratory rotatable water sieve integrated device includes a multi-layer circular sieve device 3, an operating table device, a spray device 2, a rotating lifting device 54, and a controller. The operating platform device includes a bottom operating platform 4. A conveyor belt 15 is located in the middle of the left side of the bottom operating platform 4. A support device and a weighing device 9 are sequentially located on the right side of the conveyor belt 15. The support device includes a base and a telescopic support rod 11 fixed above the base. The top of the telescopic support rod 11 is connected to a horizontally arranged metal suspension rod 1. A multi-layer circular screen device 3 is placed on the conveyor belt 15. A spraying device 2 is installed on the metal suspension rod 1 and located directly above the multi-layer circular screen device 3. A rotating lifting device 54 is installed at one end of the metal suspension rod 1 near the telescopic support rod 11. A controller is installed on the bottom operating platform 4 and is connected to the multi-layer circular screen device 3, the operating platform device, and the rotating lifting device 54. If the multi-layer circular screen device 3 has more than 3 layers, the telescopic support rod 11 is used for adjustment to maintain a reasonable spraying distance and achieve the most suitable position.

[0031] Furthermore, the bottom worktable 4 is provided with four movable pulleys 6, each pulley 6 is provided with a latch 5. The pulleys 6 mainly enable the entire device to be easily moved to any required position. Once the position is determined, the latch 5 can be pressed to fix the entire device. A fully permeable plate 18 is provided on the right side of the conveyor belt 15 and below the rotating lifting device 54. The conveyor belt 15 and the fully permeable plate 18 are located on the same plane, and the two sides of the plane are connected to foldable plates 19 by load-bearing frames 16. The load-bearing frames 16 and foldable plates 19 are connected by movable hinges 17. The conveyor belt 15 is connected to the controller, and the controller is connected to the conveyor belt switch 52. The conveyor belt switch 52 is installed on the bottom worktable 4.

[0032] The bottom workbench 4 is mainly composed of a conveyor belt 15 and a foldable plate 19. The material of the right 1 / 3 without the conveyor belt is a fully permeable plate 18. That is, the conveyor belt 15 is placed in the middle of the bottom workbench 4 to move the screening device. It is mainly used when screening large amounts of sand and soil, reducing manual operation and saving time and effort. The two foldable plates 19 can be placed parallel to the conveyor belt 15, or they can be folded through the movable hinges 17 to facilitate faster water seepage in the bottom workbench 4. Choosing the fully permeable plate 18 makes ventilation and drainage easier and speeds up the drying process.

[0033] Furthermore, the two sides of the base of the support device are connected to the bottom operating table 4 by fixing bolts 7. The weighing device 9 is embedded in one side and connected to the digital display screen 8. Short support rods 10 are fixed on both sides of the lower part of the telescopic long support rod 11. One end of the short support rod 10 is connected to the lower part of the telescopic long support rod 11, and the other end is fixed to the base of the support device. The short support rod 10, the telescopic long support rod 11, and the base of the support device form a triangle.

[0034] Furthermore, the spraying device includes a spraying body, a booster engine 20, a water inlet pipe 21, a metal corrugated pipe 23, an indicator light 24, a spraying device switch button 25, and a high-pressure water outlet 26. The top of the booster engine 20 and the top of the spraying body are fixed to the metal suspension rod 1. The top of the spraying body is fixed to the metal suspension rod 1 by hexagonal bolts 2. That is, the position of the spraying device cannot be changed. It can only be aligned with the high-pressure water outlet 26 by adjusting the position of the multi-layer circular screen device 3. If there are still traces of the multi-layer circular screen device 3 at the edge after screening... To address uneven spraying, a metal corrugated pipe 23 is used to adjust the sprayer for manual spraying. One end of the water inlet pipe 21 is connected to a water source, and the other end is pressurized by a booster engine 20 and installed into the metal corrugated pipe 23 of the sprayer body. The sprayer body is equipped with an indicator light 24 and a sprayer switch button 25. The water outlet of the sprayer body is provided with multiple high-pressure water outlets 26 at intervals. The water from the multiple high-pressure water outlets 26 is sprayed out from the tracks I 27, II 28, and III 29 arranged from the outside to the inside. The sprayer switch button 25 is used to adjust the different tracks. When the spraying device starts working and the water flow is normal, indicator light 24 shows green, and all other states show red. The high-pressure water outlet 26 can be adjusted to different tracks according to the switch button 25. If the diameter of the screening device is smaller than the diameter of the sprayer, the outer track can be closed to correspond to it. At the same time, to avoid sand from accumulating in the middle when rotating the screen, the spraying time of track Ⅲ29 can be retained alone. Or, when the screening volume is small and uneven screening occurs, the manual stirrer 53 can be used to make the screening uniform.

[0035] Furthermore, the multi-layer circular screen device 3 includes an upper screen I 30, a waterproof membrane 31, an embedded long rod 32, a metal handle 33, a stainless steel frame 34, an embedded short rod 35, and a circular embedded slide rail 36, and a lower screen II 37. The circular embedded slide rail 36 includes a meshing tooth 38, an outer ring 39, an inner ring 40, an embedded rod sliding groove 41, an inner ring sliding groove 42, and a locking tooth 43. The metal handle 33 is symmetrically welded to the stainless steel frame 34 of the screen, mainly to facilitate the lifting of the metal handle 33 by the iron load-bearing hook 12 when the conveyor belt is conveyed to the position below the fan. The stainless steel frame 34 wraps around the screen I 30 and screen II 37. Circular handles facing opposite directions are placed at the bottom of the upper stainless steel frame 34 and the top of the lower stainless steel frame 34. The circular embedded slide rail 36 is not provided at the bottom of the bottom stainless steel frame 34 or the top of the top stainless steel frame 34. The embedded long rod 32 and embedded short rod 35 are placed in the embedded rod sliding groove 41 of the circular embedded slide rail 36. The embedded rod sliding groove 41 is engaged in the inner ring sliding groove 42 by the locking teeth 43. The embedded rod sliding groove 41 rotates in the inner ring sliding groove 42 by the biting teeth 38 through the embedded locking teeth 43. The waterproof soft membrane 31 is placed between the upper stainless steel frame 34 and the lower stainless steel frame 34, and is attached to the outer ring 39 outside the embedded long rod 32 and embedded short rod 35. The circular embedded slide rail 36 is connected to the controller, and the controller is connected to the screening device button 55. The screening device button 55 is installed on the bottom operating table 4.

[0036] The length of the embedded long rod 32 should be selected between [1.8 short rod, 2.2 short rod] to control the tilt angle of the upper screening device to maintain a suitable angle. Spraying while rotating the screen can cause water to overflow. The main function of the waterproof membrane 31 is to prevent water from overflowing, so that the water from the upper layer can flow to the lower layer, thereby improving the spraying efficiency.

[0037] Furthermore, the rotating lifting device 54 includes a spool 44, a micro motor 45, a sleeve 46, a rotating bearing 47, and a fixing rod 48. The metal suspension rod 1 is connected to the rotating lifting device 54 via the fixing rod 48. The rotating bearing 47 is installed above the fixing rod 48. The entire lifting device rotates in the X-plane [0, 90°] via the rotating bearing 47. The micro motor 45 is connected to the rotating bearing 47 on the lower side via the sleeve 46. That is, the diameter of the upper sleeve of the rotating bearing 47 is larger than the sleeve 46 of the rotating platform below the micro motor, so that the upper sleeve 46 can be completely fixed in the rotating bearing 47. The iron strand 13 is wound on the spool 44. The shaft of the spool 44 is welded to the micro motor 45 via a common round rod. The micro motor 45 and the rotating bearing 47 are both connected to the controller. The controller is connected to the spool motor switch 49 and the rotating platform switch 50, respectively. The spool motor switch 49 and the rotating platform switch 50 are both installed on the bottom operating platform 4.

[0038] Furthermore, a fan 14 is provided on the lower end face of the metal suspension rod 1. The fan 14 is located below the rotating lifting device 54 and is connected to the controller. The controller is connected to the fan switch 51, and the fan switch 51 is installed on the bottom operating platform 4.

[0039] The weighing device 9 has a digital display screen 8 embedded in its lower side. The digital display screen 8 has four buttons on the left and right sides respectively. The two switches on the left are: spool motor switch 49 and rotary platform switch 50. The two switches on the right are: fan switch 51 and conveyor belt switch 52. The working principle of this invention is as follows: First, move the entire device to a suitable work area in the laboratory. Then, engage the locking buckle 5 to lock all the pulleys 6 at the bottom of the device. Taking a 3-layer screening device as an example... Figure 8 As shown, before the screening operation begins, the second layer of embedded long rods 32 and embedded short rods 35 are embedded into the embedded rod sliding grooves 41, and the upper parts of the second layer of embedded long rods 32 and embedded short rods 35 are embedded into the embedded rod sliding grooves 41 of the top layer of sieve mesh I 30. The sample is placed on the top layer of the multi-layer circular sieve device 3, and the multi-layer circular sieve device 3 is placed in the area of ​​the conveyor belt 15 as much as possible. The upper layer of sand sample is first loosened and evenly stirred with a manual stirrer 53. The water inlet pipe 21 of the spray device 2 is inserted into the faucet (if there is no faucet in the laboratory, a high-pressure water tank can be configured). The spray device is kept in a suitable position from the first layer of screening device. If the distance is too close or too far, the telescopic long support rod 11 is rotated to extend or retract. After all the settings are completed, the faucet is turned on and the whole equipment can be started and used.

[0040] Pressing the spray device switch button 25 on top of the sprayer once causes water from the inlet pipe 21 to enter the metal corrugated pipe 23 under high pressure using the booster engine 20. The indicator light 24 displays a green normal operating status. At this time, the high-pressure water outlets 26 in the three tracks 27, 28, and 29 of the sprayer simultaneously spray water jets. The spraying lasts for approximately 30 seconds to 1 minute. Pressing the button 55 of the multi-layer screening device causes the embedded long rods 32 and short rods 35 between the layers of the screening device to rotate within the circular embedded slide rails 36, thus causing the upper screening device to rotate. Figure 4By rotating slowly, the samples in the upper screening device can be continuously turned over, making the spraying more thorough. When the first layer has worked to a certain extent, if there is too much soil sample in the sieve and the internal distribution is uneven, such as the sand at the edge not being able to rotate completely, press the spray device switch button 25 once, and tracks II 28 and III 29 will automatically close, that is, all the pressure will be transferred to track I 27. The pressure of track I 27 will increase, which will cause the sand at the edge to start turning over and screening under the action of the high-pressure water jet. Similarly, if there is too much soil sample in the middle of the screen and the internal distribution is uneven, press the spray device switch button 25 three times, and tracks I 27 and II 28 will automatically close, that is, all the pressure will be transferred to track III 29. The pressure of track III 29 will increase, which will cause the sand piled up in the middle to start turning over and screening under the action of the high-pressure water jet. If there is less soil sample, the metal soft corrugated pipe 23 can be manually controlled to move the spray position in a small range. During the rotation screening, the upper layer of water drains through the waterproof soft membrane 31 and flows into the lower screen, without wasting water. When the water volume is too large, the two foldable panels 19 can be folded manually until... Figure 6 The position makes the workbench sloped, which makes it easier to drain water. A water storage tank can be installed at the bottom of the workbench 4 according to the amount of water used for screening. When the water storage tank is full, the water is poured into the water inlet tank connected to the water inlet pipe 21, which can realize the recycling of water resources. After the first layer of screening is completed, press the conveyor belt switch 52 to move the multi-layer circular screen device 3. After moving it to the position of the permeable plate 18, release the conveyor belt switch 52. Press the spool motor switch 49, and the spool 44 will start to rotate. When the position of the hook 12 on the iron strand 13 wound on the spool 44 is aligned with the metal handle 33 on the multi-layer circular screen device 3, release the spool motor switch 49 and manually hang the iron weighing hook 12 at the lower end of the iron strand 13 on the metal handles 33 on both sides of the screening device. After confirming that it is fixed, turn on the fan switch 51. At the same time, the fan 14 under the metal suspension rod 1 will start the drying work. Air drying after lifting the screening device can speed up the ventilation speed, or it can be dried without lifting. After the soil sample surface is dried, the soil sample can be stirred with a manual stirrer 53 to make the heating area larger and accelerate the drying. After the high-power fan dries the sample, press the rotary support switch 50. At this time, the rotary lifting device 54 lifts the screening device by pressing the rotary support switch 50 and rotates it parallel to the workbench. When it rotates to the position of the weighing platform 9 on the right, release the rotary support switch 50. The position of the sieve layer can be adjusted by pressing the spool motor switch 49. After the screen successfully falls into the weighing platform 9, hook out the iron hook 12 in the metal handle 33 and let it completely detach. Observe the digital display screen 8 on the lower side of the weighing platform 9 to read the mass of the air-dried soil sample in real time. While the drying and weighing work is being carried out, the spraying device performs the second layer of water screening. That is, by repeating the above work, the integrated operation of the multi-layer screening device, rotating water screening, drying and weighing can be realized.

[0041] The specific embodiments of the present invention have been described in detail above with reference to the figures. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A rotatable water screen integrated device for laboratory use, characterized by: Includes a multi-layer circular screen device (3), an operating table device, a spraying device (2), a rotating lifting device (54), and a controller; The operating platform device includes a bottom operating platform (4), a conveyor belt (15) is provided in the middle of the left side of the bottom operating platform (4), and a support device and a weighing device (9) are provided in sequence on the right side of the conveyor belt (15). The support device includes a base and a telescopic long support rod (11) fixed above the base. The top of the telescopic long support rod (11) is connected to a horizontally arranged metal suspension rod (1). The multi-layer circular screen device (3) is placed on the conveyor belt (15). The spraying device (2) is installed on the metal suspension rod (1) and located directly above the multi-layer circular screen device (3). The rotating lifting device (54) is installed at one end of the metal suspension rod (1) near the telescopic long support rod (11). The controller is installed on the bottom operating platform (4) and is connected to the multi-layer circular screen device (3), the operating platform device, and the rotating lifting device (54) respectively. The multi-layer circular screen device (3) includes an upper screen I (30), a waterproof membrane (31), an embedded long rod (32), a metal handle (33), a stainless steel frame (34), an embedded short rod (35), a circular embedded slide rail (36), and a lower screen II (37). The circular embedded slide rail (36) includes a biting tooth (38), an outer ring (39), an inner ring (40), an embedded rod sliding groove (41), an inner ring sliding groove (42), and a slotting tooth (43). The metal handle (33) is symmetrically welded to the stainless steel frame (34), which is wrapped around the screen I (30) and screen II (37). Circular embedded rods with opposite directions are placed at the bottom of the upper stainless steel frame (34) and the top of the lower stainless steel frame (34). The slide rail (36), the embedded long rod (32) and the embedded short rod (35) are placed in the embedded rod sliding groove (41) of the circular embedded slide rail (36). The embedded rod sliding groove (41) is locked in the inner ring sliding groove (42) by the slot teeth (43). The embedded rod sliding groove (41) rotates in the inner ring sliding groove (42) by the biting teeth (38) through the embedded slot teeth (43). The waterproof soft membrane (31) is placed between the upper stainless steel frame (34) and the lower stainless steel frame (34) and is attached to the outer ring (39) outside the embedded long rod (32) and the embedded short rod (35). The circular embedded slide rail (36) is connected to the controller. The controller is connected to the screening device button (55). The screening device button (55) is installed on the bottom operating table (4).

2. The laboratory rotatable water-sieve integrated device according to claim 1, characterized in that: The bottom of the bottom operating platform (4) is provided with a pulley (6) and a buckle (5). A fully permeable plate (18) is provided on the right side of the conveyor belt (15) and below the rotating lifting device (54). The conveyor belt (15) and the fully permeable plate (18) are located on the same plane and the two sides of the plane are connected to a foldable plate (19) by a load-bearing frame (16). The load-bearing frame (16) and the foldable plate (19) are connected by a hinge (17). The conveyor belt (15) is connected to the controller. The controller is connected to the conveyor belt switch (52). The conveyor belt switch (52) is installed on the bottom operating platform (4).

3. The rotatable water-sieve integrated laboratory device of claim 1, wherein: The two sides of the base of the support device are connected to the bottom operating table (4) by fixing bolts (7). The weighing device (9) is embedded in a digital display screen (8) connected to it. Short support rods (10) are fixed on both sides of the lower part of the telescopic long support rod (11). One end of the short support rod (10) is connected to the lower part of the telescopic long support rod (11), and the other end is fixed on the base of the support device. The short support rod (10), the telescopic long support rod (11), and the base of the support device form a triangle.

4. The laboratory rotatable water sieve integrated device according to claim 1, characterized in that: The spraying device includes a spraying body, a booster engine (20), a water inlet pipe (21), a metal corrugated pipe (23), an indicator light (24), a spraying device switch button (25), and a high-pressure water outlet (26). The booster engine (20) and the top of the spraying body are fixed on a metal suspension rod (1). One end of the water inlet pipe (21) is connected to a water source, and the other end is pressurized by the booster engine (20) and installed in the metal corrugated pipe (23) of the spraying body. The spraying body is equipped with an indicator light (24) and a spraying device switch button (25). The water outlet of the spraying body is provided with multiple high-pressure water outlets (26) at intervals. The water from the multiple high-pressure water outlets (26) is sprayed out from the track I (27), track II (28), and track III (29) set from the outside to the inside. The spraying device switch button (25) is used to adjust different tracks.

5. The laboratory rotatable water sieve integrated device according to claim 1, characterized in that: The The rotating lifting device (54) includes a spool (44), a micro motor (45), a sleeve (46), a rotating bearing (47), and a fixed rod (48). The metal suspension rod (1) is connected to the rotating lifting device (54) through the fixed rod (48). The rotating bearing (47) is installed above the fixed rod (48). The micro motor (45) is connected to the rotating bearing (47) on the lower side through the sleeve (46). The iron strand (13) is wound on the spool (44). The shaft of the spool (44) is connected to the micro motor (45). The micro motor (45) and the rotating bearing (47) are both connected to the controller. The controller is connected to the spool engine switch (49) and the rotating platform switch (50) respectively. The spool engine switch (49) and the rotating platform switch (50) are both installed on the bottom operating platform (4).

6. The laboratory rotatable water sieve integrated device according to claim 1, characterized in that: The lower end face of the metal suspension rod (1) is provided with a fan (14). The fan (14) is located below the rotating lifting device (54) and is connected to the controller. The controller is connected to the fan switch (51). The fan switch (51) is installed on the bottom operating platform (4).

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