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CN-122016581-A - Diamond micro powder particle coarse particle size detection device

CN122016581ACN 122016581 ACN122016581 ACN 122016581ACN-122016581-A

Abstract

The invention relates to the technical field of material detection and discloses a diamond micro powder particle coarse particle size detection device which comprises a water agent barrel, a powder barrel, an alkaline reagent barrel and an acidic reagent barrel, wherein a transparent cover is fixedly connected to the top of a cavity at the top of a box body, the tops of the water agent barrel, the powder barrel, the alkaline reagent barrel and the acidic reagent barrel are fixedly penetrated through the transparent cover, conical valve assemblies are arranged inside the water agent barrel, the powder barrel, the alkaline reagent barrel and the acidic reagent barrel, the conical valve assemblies comprise movable sleeves capable of vertically moving, threaded rods with gears are fixedly sleeved at the middle parts of the movable sleeves in a threaded manner, and the gears drive positive and negative rotation through telescopic assemblies.

Inventors

  • SU SHA
  • SU NAIFENG
  • LI JIANMIN
  • HOU MING
  • CHEN BO

Assignees

  • 山东泰玉研磨科技有限公司

Dates

Publication Date
20260512
Application Date
20260226

Claims (10)

  1. 1. The diamond micro powder particle coarse particle size detection device comprises a box body (1) and is characterized in that a controller (101) is arranged on one side of the box body (1), and a quantifying mechanism and a stirring mechanism are arranged in a cavity at the top of the box body (1); The quantitative mechanism comprises a water barrel (3), a powder barrel (301), an alkaline reagent barrel (302) and an acidic reagent barrel (303), a transparent cover (102) is fixedly connected to the top of a cavity at the top of the box body (1), the tops of the water barrel (3), the powder barrel (301), the alkaline reagent barrel (302) and the acidic reagent barrel (303) are fixedly penetrated through the transparent cover (102), conical valve assemblies are arranged inside the water barrel (3), the powder barrel (301), the alkaline reagent barrel (302) and the acidic reagent barrel (303), each conical valve assembly comprises a movable sleeve (406) capable of vertically moving, a threaded rod (5) with a gear (501) is fixedly sleeved at the middle part of the movable sleeve (406) in a threaded manner, and the gear (501) drives forward and backward rotation through a telescopic assembly; The telescopic assembly comprises an electric cylinder (6), the electric cylinder (6) is fixed on the side wall of the box body (1), a concave block (601) is fixedly connected to the telescopic end of the electric cylinder (6), a first rack (502) and a second rack (503) are fixedly connected to the top and the bottom of the concave block (601) through threaded knobs (602) respectively, and the first rack (502) and the second rack (503) are both in sliding connection with the side wall of the inner cavity of the box body (1) and are in meshed connection with a gear (501).
  2. 2. The device for detecting the coarse grain size of the diamond micro powder particles according to claim 1, wherein the stirring mechanism comprises a stirring barrel (2), a stirring rod (202) driven by a motor (201) is arranged in the stirring barrel (2), and a rotating shaft in the middle of the stirring rod (202) rotates to penetrate through a top plate of the stirring barrel (2) and is fixedly connected with the output end of the motor (201) fixed on the top plate.
  3. 3. The device for detecting the coarse grain size of the diamond micro powder particles according to claim 2, wherein a conveying pipe (204) is arranged at the bottom of the side wall of the stirring barrel (2) in a communicating mode, one end of the conveying pipe (204) is communicated with a detection tank on one side of a cavity of the box body (1) through a water pump, a waste liquid outlet of the detection tank is connected with a waste liquid pump through a pipeline, and waste liquid is discharged to the waste liquid tank through the waste liquid pump.
  4. 4. The device for detecting the coarse particle size of the diamond micro powder particles according to claim 1, wherein the output ends of the water agent barrel (3), the powder barrel (301), the alkaline reagent barrel (302) and the acidic reagent barrel (303) are communicated with the top of the stirring barrel (2) through connecting pipes.
  5. 5. The diamond micro powder particle coarse particle size detection device according to claim 1, wherein the conical valve component comprises 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 with the top end of a movable sleeve (406), a fixed seat (403) is arranged 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 with an external water agent barrel (3) or a powder barrel (301) or an alkaline reagent barrel (302) or an acidic reagent barrel (303) through two fixing rods (407), a fixed sleeve (405) is arranged on an external movable sleeve of the movable sleeve (406), the top of the fixed sleeve (405) is fixedly connected with 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 with the outer ring of the fixed seat (403).
  6. 6. The device for detecting the coarse grain size of the diamond micro powder particles according to claim 1, wherein one end of the threaded rod (5) penetrates through the bottom wall of the water aqua barrel (3), the powder barrel (301), the alkaline reagent barrel (302) or the acidic reagent barrel (303) and is connected with the fixing plate (7) in a rotating mode.
  7. 7. The device for detecting the coarse grain size of the diamond micro powder particles according to claim 1, wherein the outer surface of the bottom end of the threaded rod (5) in the water aqua bucket (3) is sleeved with two gears (501), the gear (501) at the top is meshed with the first rack (502), and the gears (501) at the bottom ends of the threaded rods (5) in the powder bucket (301) and the alkaline reagent bucket (302) are meshed with the first rack (502).
  8. 8. The device for detecting the coarse grain size of the diamond micro powder particles according to claim 1, wherein a gear (501) at the bottom of the bottom end of the threaded rod (5) in the water aqua bucket (3) is meshed with a second rack (503), and the gear (501) at the bottom end of the threaded rod (5) in the acid reagent bucket (303) is meshed with the second rack (503).
  9. 9. The device for detecting the coarse grain size of the diamond micro powder particles according to claim 2, wherein the first rack (502) and the second rack (503) can slide along two sliding holes arranged on one side of the box body (1).
  10. 10. The device for detecting the coarse particle size of the diamond micro powder particles according to claim 1, wherein the water agent barrel (3), the powder barrel (301), the alkaline reagent barrel (302) and the acid reagent barrel (303) are all made of transparent materials, and scale marks are arranged on the outer surface of the water agent barrel.

Description

Diamond micro powder particle coarse particle size detection device Technical Field The invention relates to the technical field of material detection, in particular to a diamond micropowder particle coarse-particle size detection device. Background In the patent application of application bulletin number CN221899014U, it includes the detection box, the equal fixedly connected with mounting panel in both ends about the top of detection box, the activity of the opposite face upper end of two mounting panels is pegged graft and is had the threaded rod, the threaded rod extends to the right-hand member the outside fixedly connected with of mounting panel removes the knob, the below fixedly connected with gag lever post of threaded rod is corresponding to the opposite face upper end of two mounting panels, threaded connection has the connecting block on the threaded rod, the lower extreme activity of connecting block cup joints on the gag lever post, the lower extreme of connecting block is provided with dust keeper, dust keeper is close to one side of removing the knob and is provided with the particle detector, the lower fixed surface of particle detector is connected with detection probe. The dust-proof device has the advantages that dust can be effectively prevented from adhering to the detection probes while the work of the detector is not affected by the arrangement of the closed dust-proof device, a stable detection environment is provided, and the detection accuracy is improved. The diamond micropowder has irreplaceable application value in the fields of precision polishing, superhard composite materials, electronic packaging, high-end heat dissipation coatings (such as high-performance heat dissipation interface materials of data center servers) and the like due to extremely high hardness, excellent heat conductivity and wear resistance. The particle size distribution, especially the coarse particle size content, of the particles is one of the key indicators affecting the properties of the final product (such as surface finish, material uniformity, heat transfer efficiency). Therefore, accurate and efficient coarse grain detection of the diamond micro powder is an important link for guaranteeing the quality of raw materials and the downstream application performance. At present, a laser particle size analyzer is commonly used in the industry for detecting the particle size of diamond micropowder. Before detection, the micro powder sample needs to be prepared into uniform and stable suspension. In most of the prior art including the above patents, the mixed diamond micropowder, water and dispersant are dispersed by simple mechanical stirring or ultrasonic vibration. The diamond micropowder is easy to agglomerate due to large specific surface area and high surface energy, and forms soft agglomerates or hard agglomerates which are difficult to depolymerize. The purely mechanical shearing forces often do not disperse them completely and homogeneously into primary particles, resulting in the suspension produced having a particle size that is actually larger than its true primary particle size. The false coarse particles can be misjudged as coarse particle components by a laser particle analyzer, and the accuracy of detection results is seriously interfered. More importantly, because of the manual or semi-automatic dosing mode, the proportion of water, micro powder and dispersing agent (usually alkaline or acid reagent for adjusting pH) added each time is difficult to accurately control, so that the fluctuation of solid content (directly affecting density and inter-particle distance) and pH value (pH value) of suspensions of different batches is large. The dispersion state and sedimentation behavior of particles in the suspension are further affected by the instability of physical properties (such as viscosity and Zeta potential) of the suspension, so that laser scattering signals are unstable, and finally, the repeatability (consistency of multiple detection results of the same sample) and reproducibility (consistency of detection results of different operators and different times) of detection data are not ideal, and after detection, a stirring container and a detection pool are required to be cleaned to eliminate cross contamination of residues of the previous batch to the next detection. The existing method usually adopts a large amount of clear water to repeatedly wash or adopts the experience of adding acid/alkali for rough neutralization. The former has large water consumption and low efficiency, and is difficult to thoroughly remove micro powder and reagent residues adsorbed on the wall, and the latter can cause incomplete cleaning (residual alkalinity) or excessive corrosion of equipment (excessive acid) due to improper use of acid and alkali, and generate unnecessary chemical consumption and waste water treatment pressure, so that the method is neither economical nor environment-friendly. Aiming at