Diamond micro-powder particle coarseness detection device

Abstract

The invention relates to the technical field of material detection, and discloses a diamond micro-powder particle coarseness detection device which comprises a water agent barrel, a powder agent barrel, an alkaline reagent barrel and an acidic reagent barrel, a transparent cover is fixedly connected to the top of a cavity in the top of a box body, and the tops of the water agent barrel, the powder agent barrel, the alkaline reagent barrel and the acidic reagent barrel fixedly penetrate through the transparent cover; conical valve assemblies are arranged in the water agent barrel, the powder barrel, the alkaline reagent barrel and the acid reagent barrel and comprise moving sleeves capable of vertically moving, the middles of the moving sleeves are in threaded connection with threaded rods, gears fixedly sleeve the outer portions of the threaded rods, and the gears are driven by telescopic assemblies to rotate forwards and backwards; by arranging the quantifying mechanism, the stirring mechanism and the telescopic assembly, fixed-proportion batching can be achieved, it is ensured that the property of suspension liquid is stable, acid-base equivalent neutralization is achieved, and safe, efficient and repeatable cleaning is provided.

Description

Technical Field

[0001] This invention relates to the field of materials testing technology, specifically to a device for detecting the coarse particle size of diamond micron powder. Background Technology

[0002] In patent application CN221899014U, a detection box is included. Mounting plates are fixedly connected to the top left and right ends of the detection box. Threaded rods are movably inserted into the upper ends of the opposing surfaces of the two mounting plates. A movable knob is fixedly connected to the outer side of the right-end mounting plate via the threaded rods. A limiting rod is fixedly connected to the lower end of the threaded rods on the upper ends of the opposing surfaces of the two mounting plates. A connecting block is threaded onto the threaded rods. The lower end of the connecting block is movably sleeved on the limiting rod. A dustproof device is provided at the lower end of the connecting block. A particle detector is located on the side of the dustproof device near the movable knob. A detection probe is fixedly connected to the lower surface of the particle detector. The advantages are: by setting up a closed dustproof device, dust can be effectively prevented from adhering to the detection probe without affecting the operation of the detector, and a stable detection environment is provided, thus improving the accuracy of the detection.

[0003] Diamond micron powder, due to its extremely high hardness, excellent thermal conductivity, and wear resistance, has irreplaceable application value in precision polishing, superhard composite materials, electronic packaging, and high-end heat dissipation coatings (such as high-performance heat dissipation interface materials for data center servers). Its particle size distribution, especially the coarse particle content, is one of the key indicators affecting the performance of the final product (such as surface finish, material uniformity, and thermal conductivity). Therefore, accurate and efficient coarse particle size detection of diamond micron powder is a crucial step in ensuring raw material quality and downstream application performance. Currently, the industry commonly uses laser particle size analyzers for diamond micron powder particle size detection. Before detection, the micron powder sample must be prepared into a uniform and stable suspension.

[0004] In most existing technologies, including the aforementioned patents, simple mechanical stirring or ultrasonic vibration is used to disperse the mixed diamond micropowder, water, and dispersant. Due to its large specific surface area and high surface energy, diamond micropowder is highly prone to agglomeration, forming soft or hard agglomerates that are difficult to disagglomerate. Simple mechanical shearing force often fails to completely and uniformly disperse it into native particles, resulting in a suspension where the actual particle size is larger than its true native particle size. These "pseudo-coarse particles" can be misidentified as coarse particles by laser particle size analyzers, severely interfering with the accuracy of the test results. More importantly, manual or semi-automatic batching methods make it difficult to precisely control the ratio of water, micropowder, and dispersant (often alkaline or acidic reagents used to adjust pH) added each time, leading to significant fluctuations in the solid content (directly affecting density and particle spacing) and pH value of different batches of suspension. The instability of suspension properties (such as viscosity and zeta potential) further affects the dispersion and sedimentation behavior of particles within it, leading to unstable laser scattering signals. This ultimately results in poor repeatability (consistency of results from multiple tests on the same sample) and reproducibility (consistency of results from different operators at different times) of the test data. After testing, the stirring container and testing tank need to be cleaned to eliminate cross-contamination from the previous batch. Existing methods typically involve repeated rinsing with large amounts of water or rough neutralization by adding acid / alkali based on experience. The former uses a large amount of water, is inefficient, and struggles to completely remove micropowder and reagent residues adsorbed on the container walls; the latter may result in incomplete cleaning (residual alkalinity) or excessive corrosion of equipment (excessive acid) due to improper acid / alkali dosage, and generates unnecessary chemical consumption and wastewater treatment pressure, making it neither economical nor environmentally friendly.

[0005] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0006] The problems to be solved by this invention are: the instability of suspension density and pH caused by the difficulty in accurately controlling the material mixing ratio in the pretreatment process of diamond micron powder particle size detection, which affects the repeatability of the test results; and the difficulties of post-detection system cleaning relying on manual experience, which is inefficient and easily leads to chemical waste and cross-contamination.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is: a diamond micron particle coarseness detection device, including a box, a controller installed on one side of the box, and a quantitative mechanism and a stirring mechanism arranged in the cavity at the top of the box; The quantitative mechanism includes an aqueous solution tank, a powder tank, an alkaline reagent tank, and an acidic reagent tank. A transparent cover is fixedly connected to the top of the cavity at the top of the box. The tops of the aqueous solution tank, powder tank, alkaline reagent tank, and acidic reagent tank are all fixedly connected through the transparent cover. A conical valve assembly is provided inside each of the aqueous solution tank, powder tank, alkaline reagent tank, and acidic reagent tank. The conical valve assembly includes a vertically movable sleeve. A threaded rod with a gear fixedly mounted on the outside is threadedly connected to the middle of the movable sleeve. The gear is driven to rotate in both directions through a telescopic assembly. The telescopic assembly includes an electric cylinder, which is fixed to the side wall of the housing. The telescopic end of the electric cylinder is fixedly connected to a concave block. The top and bottom of the concave block are respectively fixedly connected to rack one and rack two via threaded knobs. Both rack one and rack two are slidably connected to the side wall of the cavity inside the housing and mesh with gears.

[0008] Preferably, the stirring mechanism includes a stirring tank, inside which is a stirring rod driven by a motor. The rotating shaft in the middle of the stirring rod rotates through the top plate of the stirring tank and is fixedly connected to the output end of the motor fixed on the top plate.

[0009] Preferably, a conveying pipe is connected to the bottom of the side wall of the mixing tank. One end of the conveying pipe is connected to a detection pool on one side of the cavity of the tank via a water pump. The waste liquid outlet of the detection pool is connected to a drain pump via a pipe, and waste liquid is discharged to the waste liquid pool via the drain pump.

[0010] Preferably, the output ends of the aqueous reagent tank, powder reagent tank, alkaline reagent tank, and acidic reagent tank are all connected to the top of the mixing tank via connecting pipes.

[0011] Preferably, the conical valve assembly includes a conical cover, a piston fixedly connected to the middle of the conical cover, the middle of the bottom of the piston fixedly connected to the top of the movable sleeve, a fixed seat provided at the bottom of the piston, a connecting plate fixedly connected to the bottom of the fixed seat, the bottom of the connecting plate being fixedly connected to the external liquid container, powder container, alkaline reagent container, or acidic reagent container via two fixed rods, a fixed sleeve movably fitted on the outside of the movable sleeve, the top of the fixed sleeve being fixedly connected to the bottom of the connecting plate, and a rubber ring fixedly connected to the outer ring of the bottom of the conical cover, the bottom end of the rubber ring being fixedly connected to the outer ring of the fixed seat.

[0012] Preferably, one end of the threaded rod penetrates the bottom wall of the liquid reagent tank, powder tank, alkaline reagent tank, or acidic reagent tank and is rotatably connected to the fixed plate.

[0013] Preferably, two gears are fitted on the outer surface of the bottom end of the threaded rod inside the liquid container, and the top gear meshes with the rack. The gears at the bottom end of the threaded rods inside the powder container and the alkaline reagent container also mesh with the rack.

[0014] Preferably, the gear at the bottom of the threaded rod in the aqueous solution tank meshes with the rack, and the gear at the bottom of the threaded rod in the acidic reagent tank meshes with the rack.

[0015] Preferably, rack one and rack two can slide along two sliding holes provided on one side of the housing.

[0016] Preferably, the liquid reagent container, powder reagent container, alkaline reagent container, and acidic reagent container are all made of transparent material and have scale lines on their outer surface.

[0017] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) By setting up a quantitative mechanism, a stirring mechanism and a telescopic component, a fixed proportion of ingredients can be achieved, ensuring the stability of the suspension and achieving equal neutralization of acid and alkali, providing safe and efficient reusable cleaning. In the ingredient preparation process, the opening of the valves of the water tank, powder tank and alkaline reagent tank is synchronously controlled by a single electric cylinder through the connection of rack one. By precisely designing the area ratio of the outlet of each tank, water, powder and alkaline solution are automatically mixed according to the preset ratio during the synchronous opening of the valves. Therefore, no matter how the amount of diamond powder added changes, a suspension with constant density and pH can be prepared, providing a stable and reliable medium environment for subsequent particle size detection, and significantly improving the consistency and accuracy of the detection; (2) In the cleaning process, the valves of the acid reagent tank and the aqueous reagent tank are driven by the same electric cylinder through the connection of rack two. By setting the stroke and time parameters exactly the same as those in the batching process, and combining the design of the same outlet area for the acid tank and the alkaline tank, the amount of acid added is precisely equal to the amount of alkaline solution in the previous process, achieving "equal neutralization". At the same time, the water flow cooperates with the flushing pipeline to efficiently and safely complete the cleaning of the mixing tank and the testing pool, eliminating cross-contamination between batches and reducing chemical consumption and environmental risks. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure inside the cavity at the top of the box body of the present invention; Figure 3 This is a schematic diagram of the structure of the mixing tank of the present invention; Figure 4 This is a schematic diagram of the structure of the telescopic component of the present invention; Figure 5 This is a schematic diagram of the quantitative mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the stirring rod of the present invention; Figure 7 This is a schematic diagram of the internal structure of the aqueous solution tank of the present invention; Figure 8 This is a schematic diagram of the external structure of the conical valve assembly of the present invention; Figure 9 This is a cross-sectional structural diagram of the conical valve assembly of the present invention; Figure 10 This is a schematic diagram of the structure of rack one and rack two of the present invention.

[0019] In the diagram: 1. Box body; 101. Controller; 102. Transparent cover; 2. Mixing tank; 201. Motor; 202. Stirring rod; 204. Delivery pipe; 3. Liquid tank; 301. Powder tank; 302. Alkaline reagent tank; 303. Acidic reagent tank; 4. Conical cover; 401. Piston; 402. Rubber ring; 403. Fixing base; 404. Connecting plate; 405. Fixing sleeve; 406. Moving sleeve; 407. Fixing rod; 5. Threaded rod; 501. Gear; 502. Rack one; 503. Rack two; 6. Electric cylinder; 601. "Concave" block; 602. Threaded knob; 7. Fixing plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0021] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0022] like Figures 1 to 10 As shown, the present invention provides a diamond micron powder particle coarseness detection device, including a housing 1, a controller 101 installed on one side of the housing 1 for receiving instructions and coordinating the actions of each actuator, and a quantitative mechanism and a stirring mechanism are provided in the top cavity of the housing 1. The dispensing mechanism includes a liquid container 3, a powder container 301, an alkaline reagent container 302, and an acidic reagent container 303, and a transparent cover 102. The tops of the liquid container 3, powder container 301, alkaline reagent container 302, and acidic reagent container 303 are equipped with covers to prevent dust accumulation. The covers can be manually removed and placed as needed to add materials. The transparent cover 102 is fixedly connected to the top of the cavity at the top of the housing 1. The tops of the liquid container 3, powder container 301, alkaline reagent container 302, and acidic reagent container 303 are all fixedly connected through the transparent cover 102 for easy observation. 2. The reagent content in the acid reagent tank 303, the water reagent tank 3, the powder tank 301, the alkaline reagent tank 302 and the acid reagent tank 303 are all equipped with conical valve assemblies to control the release of materials. The conical valve assembly includes a vertically movable sleeve 406. The middle of the movable sleeve 406 is threadedly connected to a threaded rod 5 with an externally fixed sleeve of gear 501. The gear 501 is driven to rotate in both directions through a telescopic assembly. When the threaded rod 5 is driven to rotate, the movable sleeve 406 drives the conical cover 4 to move vertically up and down along the fixed sleeve 405, thereby opening or closing the discharge port at the bottom of the reagent tank. The telescopic assembly includes an electric cylinder 6, which is fixed to the side wall of the housing 1. The telescopic end of the electric cylinder 6 is fixedly connected to a concave block 601. The top and bottom of the concave block 601 are respectively fixedly connected to a rack 502 and a rack 503 via a threaded knob 602. Both racks 502 and 503 are slidably connected to the side wall of the cavity inside the housing 1 and mesh with a gear 501. The racks 502 and 503 can be individually connected to the concave block 601 as needed by turning the threaded knob 602 in and out.

[0023] In one embodiment of the present invention, the stirring mechanism includes a stirring tank 2, and a stirring rod 202 driven by a motor 201 is provided inside the stirring tank 2. The rotating shaft in the middle of the stirring rod 202 rotates through the top plate of the stirring tank 2 and is fixedly connected to the output end of the motor 201 fixed on the top plate. The motor 201 is started by the controller 101, and the rotation of the output end of the motor 201 can drive the stirring rod 202 to rotate, thereby mixing the reagents in the stirring tank 2.

[0024] In one embodiment of the present invention, a conveying pipe 204 is connected to the bottom of the side wall of the mixing tank 2. One end of the conveying pipe 204 is connected to the detection pool on one side of the cavity of the box body 1 through a water pump. The water pump draws the mixed liquid from the mixing tank 2 into the detection pool to detect the coarseness of the diamond micron powder particles. The waste liquid outlet of the detection pool is connected to the drain pump through a pipe, and the waste liquid is discharged into the waste liquid pool through the drain pump. The mixed liquid after detection is discharged into the waste liquid pool through the drain pump for recycling.

[0025] In one embodiment of the present invention, the output ends of the aqueous solution tank 3, the powder tank 301, the alkaline reagent tank 302, and the acidic reagent tank 303 are all connected to the top of the stirring tank 2 through connecting pipes. This allows the water in the aqueous solution tank 3, the diamond powder in the powder tank 301, the alkaline reagent in the alkaline reagent tank 302, and the acidic reagent in the acidic reagent tank 303 to directly enter the stirring tank 2 for stirring and reaction after quantitative output.

[0026] In one embodiment of the present invention, the conical valve assembly includes a conical cover 4, a piston 401 fixedly connected to the middle of the conical cover 4, the middle of the bottom of the piston 401 fixedly connected to the top of the movable sleeve 406, a fixed seat 403 provided at the bottom of the piston 401, a connecting plate 404 fixedly connected to the bottom of the fixed seat 403, the bottom of the connecting plate 404 fixedly connected to the external liquid tank 3, powder tank 301, alkaline reagent tank 302, or acidic reagent tank 303 via two fixed rods 407, a fixed sleeve 405 movably sleeved on the outside of the movable sleeve 406, the top of the fixed sleeve 405 fixedly connected to the bottom of the connecting plate 404, a rubber ring 402 fixedly connected to the outer ring of the bottom of the conical cover 4, the rubber ring 402 being retractable, the outer surface of the rubber ring 402 fitting against the inner surface of the liquid tank 3, sealing the outlet of the liquid tank 3, facilitating the up-and-down movement of the piston 401, and the bottom end of the rubber ring 402 fixedly connected to the outer ring of the fixed seat 403.

[0027] In one embodiment of the present invention, one end of the threaded rod 5 penetrates the bottom wall of the liquid reagent tank 3, the powder reagent tank 301, the alkaline reagent tank 302, or the acidic reagent tank 303 and is rotatably connected to the fixing plate 7.

[0028] In one embodiment of the present invention, two gears 501 are fitted on the outer surface of the bottom end of the threaded rod 5 inside the liquid tank 3. The top gear 501 meshes with the rack 502. The gears 501 at the bottom end of the threaded rod 5 inside the powder tank 301 and the alkaline reagent tank 302 mesh with the rack 502. The controller 101 starts the electric cylinder 6, and the telescopic end of the electric cylinder 6 retracts, driving the rack 502 to move a distance in the direction of the electric cylinder 6. This causes the gears 501 and threaded rod 5 at the top of the liquid tank 3, the gears 501 and threaded rod 5 at the bottom of the powder tank 301 and the alkaline reagent tank 302 to rotate forward. This synchronously drives the respective moving sleeves 406 to move upward, thereby pushing the respective pistons 401 to move upward, thus opening their bottoms and discharging materials synchronously and proportionally. When it is necessary to close the discharge, the telescopic end of the electric cylinder 6 can be extended out of its original position.

[0029] In one embodiment of the present invention, the gear 501 at the bottom of the threaded rod 5 in the aqueous solution tank 3 meshes with the rack 503, and the gear 501 at the bottom of the threaded rod 5 in the acid reagent tank 303 meshes with the rack 503. The back-and-forth movement of the rack 503 can drive the gear 501 at the bottom of the threaded rod 5 in the aqueous solution tank 3 and the gear 501 at the bottom of the threaded rod 5 in the acid reagent tank 303 to rotate in opposite directions, thereby opening and closing their respective material outlets.

[0030] In one embodiment of the present invention, rack 1 502 and rack 2 503 can slide along two sliding holes provided on one side of the housing 1.

[0031] In one embodiment of the present invention, the aqueous solution tank 3, the powder tank 301, the alkaline reagent tank 302, and the acidic reagent tank 303 are all made of transparent material and have scale lines on their outer surfaces, so as to facilitate observation of the material levels in the aqueous solution tank 3, the powder tank 301, the alkaline reagent tank 302, and the acidic reagent tank 303 and facilitate timely replenishment.

[0032] The working principle and usage process of this invention: Ingredient preparation and testing process: The operator first screws in the threaded knob 602 of the fixed rack 502, firmly connecting it to the top of the concave block 601; simultaneously, the operator unscrews the threaded knob 602 of the fixed rack 503, disengaging it from the concave block 601. At this time, rack 502 is in the "working state," while rack 503 is in the "free state." The controller 101 controls the electric cylinder 6 to perform a retraction action. The extension end of the electric cylinder 6 drives the concave block 601 and the rack 502 fixed thereto to move a preset stroke in the direction of the electric cylinder 6. This stroke precisely corresponds to the position required for the conical valve to move from being fully closed to reaching a predetermined opening degree (which is determined by the proportion of the discharge port area and the target discharge amount). Rack 502 moves towards electric cylinder 6, driving the gears 501 at the bottom of the water tank 3 (top gear), powder tank 301, and alkaline reagent tank 302 to rotate synchronously. This, in turn, drives the threaded rods 5 to rotate, converting the rotational motion into the linear lifting of the moving sleeve 406. This synchronously and proportionally opens the conical valves at the bottom of the three reagent tanks to the predetermined opening degree. When electric cylinder 6 reaches the preset stroke end point (i.e., the valve reaches the predetermined opening degree), controller 101 stops it and maintains its position. At this time, the valves remain open, and water, diamond powder, and alkaline reagent begin to flow into mixing tank 2 in a fixed proportion. The system enters the timed discharge stage, with the discharge duration preset by controller 101 according to the required total material quantity. When the timer reaches the set time, discharge ends. Controller 101 controls electric cylinder 6 to extend, driving the concave block 601 and rack 502 to move away from electric cylinder 6, returning to the initial position. The rack 502 moves in the reverse direction, driving the gear set to reverse, which in turn drives each threaded rod 5 to rotate in the opposite direction, thereby causing the moving sleeve 406 to descend and simultaneously and completely close the bottom valves of the aqueous solution tank 3, the powder tank 301, and the alkaline reagent tank 302. The mixture flows into the mixing tank 2, where the motor 201 drives the stirring rod 202 to stir at high speed, completely breaking up the agglomerated diamond micro-powder particles to form a uniform and stable suspension. After uniform stirring, the controller 101 starts the water pump on the delivery pipe 204 to pump the suspension into the detection pool on the side of the tank 1, where coarse particle size is detected by equipment such as a laser particle size analyzer. The waste liquid after testing is discharged by the drain pump.

[0033] By precisely designing the cross-sectional area ratio of the discharge ports at the bottom of the three reagent tanks (e.g., water:powder:alkali solution = A:B:C), and ensuring that the valve opening height and time are exactly the same, the materials are added precisely in a fixed volume ratio. This ensures that regardless of the total amount of diamond powder added, the final suspension has a constant density and pH.

[0034] Cleaning and neutralization process: After the inspection is completed, the operator unscrews the threaded knob 602 that secures rack one 502, disengaging it; simultaneously, the operator screws in the threaded knob 602 that secures rack two 503, firmly connecting it to the bottom of the concave block 601. At this point, rack two 503 is in the "working state," while rack one 502 is in the "free state." The controller 101 controls the electric cylinder 6 to retract. The extension end of the electric cylinder 6 drives the concave block 601 and the rack 503 fixed thereto to move a preset distance towards the electric cylinder 6. This distance is exactly the same as the extension distance of the electric cylinder in the batching process. The rack 503 moves towards the electric cylinder 6, driving the gear 501 at the bottom of the water tank 3 (bottom gear) and the acid reagent tank 303 to rotate synchronously, thereby driving the corresponding threaded rod 5 to rotate, and simultaneously opening the conical valves of the water tank 3 (bottom) and the acid reagent tank 303 to a predetermined opening degree. After the electric cylinder 6 reaches the end of its stroke, it stops and remains open, and the valves remain open. The system enters the timed dispensing stage, and the dispensing duration is set to be the same as the dispensing time in the batching process. After the timed period ends, the controller 101 controls the electric cylinder 6 to extend, driving the concave block 601 and the rack 503 to move away from the electric cylinder 6 and return to the initial position. Rack 2 503 moves in the reverse direction, driving the gear set to reverse, thereby simultaneously closing the bottom valves of the aqueous solution tank 3 and the acid reagent tank 303. The cross-sectional area of ​​the discharge port of the acid reagent tank 303 and the alkaline reagent tank 302 is designed to be exactly the same. Since the stroke, direction (corresponding to the valve opening), and holding time of the electric cylinder 6 driving rack 2 503 in the cleaning process are strictly consistent with the parameters of the driving rack 1 502 in the batching process, the amount of acidic solution added this time is exactly equal to the amount of alkaline solution added in the previous process, thus achieving precise chemical neutralization. At the same time, the aqueous solution tank 3 provides cleaning water. The acidic solution and water flow into the stirring tank 2 to clean and neutralize the tank wall and stirring rod. Subsequently, the neutralized cleaning liquid is pumped into the testing tank to flush the tank body and pipelines, and finally discharged as waste liquid.

[0035] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A device for detecting the coarseness of diamond micron powder particles, comprising a housing (1), characterized in that: A controller (101) is installed on one side of the box (1), and a metering mechanism and a stirring mechanism are provided in the top cavity of the box (1). The quantitative mechanism includes an aqueous container (3), a powder container (301), an alkaline reagent container (302), and an acidic reagent container (303). A transparent cover (102) is fixedly connected to the top of the cavity at the top of the box (1). The tops of the aqueous container (3), the powder container (301), the alkaline reagent container (302), and the acidic reagent container (303) are all fixedly connected through the transparent cover (102). A conical valve assembly is provided inside the aqueous container (3), the powder container (301), the alkaline reagent container (302), and the acidic reagent container (303). The conical valve assembly includes a vertically movable sleeve (406). A threaded rod (5) with a gear (501) fixedly sleeved on the outside is threadedly connected to the middle of the movable sleeve (406). The gear (501) is driven to rotate in both directions through a telescopic assembly. The telescopic assembly includes an electric cylinder (6), which is fixed to the side wall of the housing (1). The telescopic end of the electric cylinder (6) is fixedly connected to a concave block (601). The top and bottom of the concave block (601) are respectively fixedly connected to a rack one (502) and a rack two (503) via a threaded knob (602). Both rack one (502) and rack two (503) are slidably connected to the side wall of the cavity inside the housing (1) and mesh with a gear (501).

2. The diamond micron powder particle coarseness detection device according to claim 1, characterized in that: The stirring mechanism includes a stirring tank (2), and a stirring rod (202) driven by a motor (201) is provided inside the stirring tank (2). The rotating shaft in the middle of the stirring rod (202) rotates through the top plate of the stirring tank (2) and is fixedly connected to the output end of the motor (201) fixed on the top plate.

3. The diamond micron powder particle coarseness detection device according to claim 2, characterized in that: The bottom of the side wall of the mixing tank (2) is connected to a conveying pipe (204). One end of the conveying pipe (204) is connected to the detection pool on one side of the cavity of the box (1) through a water pump. The waste liquid outlet of the detection pool is connected to the drain pump through a pipe and the waste liquid is discharged to the waste liquid pool through the drain pump.

4. The diamond micron powder particle coarseness detection device according to claim 1, characterized in that: The output ends of the aqueous reagent tank (3), powder tank (301), alkaline reagent tank (302) and acidic reagent tank (303) are all connected to the top of the mixing tank (2) through connecting pipes.

5. The diamond micron powder particle coarseness detection device according to claim 1, characterized in that: The conical valve assembly includes a conical cover (4), a piston (401) is fixedly connected to the middle of the conical cover (4), the middle of the bottom of the piston (401) is fixedly connected to the top of the movable sleeve (406), a fixed seat (403) is provided at the bottom of the piston (401), a connecting plate (404) is fixedly connected to the bottom of the fixed seat (403), the bottom of the connecting plate (404) is fixedly connected to the external liquid tank (3), powder tank (301), alkaline reagent tank (302) or acidic reagent tank (303) through two fixed rods (407), a fixed sleeve (405) is movably sleeved on the outside of the movable sleeve (406), the top of the fixed sleeve (405) is fixedly connected to the bottom of the connecting plate (404), a rubber ring (402) is fixedly connected to the outer ring of the bottom of the conical cover (4), and the bottom end of the rubber ring (402) is fixedly connected to the outer ring of the fixed seat (403).

6. The diamond micron powder particle coarseness detection device according to claim 1, characterized in that: One end of the threaded rod (5) passes through the bottom wall of the liquid container (3), powder container (301), alkaline reagent container (302), or acidic reagent container (303) and is rotatably connected to the fixing plate (7).

7. The diamond micron powder particle coarseness detection device according to claim 1, characterized in that: Two gears (501) are fitted on the outer surface of the bottom end of the threaded rod (5) in the liquid container (3). The top gear (501) meshes with the rack (502). The gears (501) at the bottom end of the threaded rod (5) in the powder container (301) and the alkaline reagent container (302) mesh with the rack (502).

8. The diamond micron powder particle coarseness detection device according to claim 1, characterized in that: The gear (501) at the bottom of the threaded rod (5) in the aqueous reagent tank (3) meshes with the rack (503), and the gear (501) at the bottom of the threaded rod (5) in the acidic reagent tank (303) meshes with the rack (503).

9. The diamond micron powder particle coarseness detection device according to claim 2, characterized in that: The rack one (502) and rack two (503) can slide along two sliding holes provided on one side of the housing (1).

10. The diamond micron powder particle coarseness detection device according to claim 1, characterized in that: The aqueous reagent container (3), powder container (301), alkaline reagent container (302) and acidic reagent container (303) are all made of transparent material and have scale lines on their outer surface.

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