Conductive paste laser particle sizer with centering adjustment

Abstract

The application relates to the technical field of laser particle size analyzers, in particular to a conductive slurry laser particle size analyzer with centering adjustment, which comprises an instrument assembly, a calibration liquid changing mechanism arranged in the instrument assembly, a slurry preparation mechanism installed on the calibration liquid changing mechanism and two groups of proportioning liquid prestorage mechanisms installed on the slurry preparation mechanism; the instrument assembly comprises a base, a machine stand movably installed on the base and a detection head installed at the top end of the machine stand. The calibration liquid changing mechanism is movably installed in the sliding groove on the upper surface of the base, the liquid storage tank and the detection head are centrally aligned in a pre-calibration mode, when the conductive slurry is filled into the inner cavity of the liquid storage tank and is sealed by the cover plate under constant pressure, the slurry in the inner cavity of the liquid storage tank under constant pressure can avoid the formation of air bubbles during stirring, so that the detection head is prevented from being disturbed by the generated air bubbles.

Description

Technical Field

[0001] This invention relates to the field of laser particle size analyzer technology, specifically to a laser particle size analyzer for conductive slurry with centering adjustment. Background Technology

[0002] A laser particle size analyzer is an instrument for measuring and analyzing the abundance of physical particles. Its principle is that when light propagates, the wavefront is restricted by a gap or particle of a scale equivalent to the wavelength. The emission of each element wave at the restricted wavefront as the source interferes in space, resulting in diffraction and scattering. The spatial (angular) distribution of the diffracted and scattered light energy is related to the wavelength of the light wave and the scale of the gap or particle.

[0003] Currently, laser particle size analyzers still have certain shortcomings in practical operation. Before testing conductive slurries, existing laser particle size analyzers require filling the container with a clear liquid in advance. The accuracy of the instrument is verified by pre-testing the clear liquid. Once the accuracy of the instrument is determined, the metal mixture can be dripped into the clear water in the container as needed. However, this process requires repeated disassembly and reassembly of the container. Therefore, the reassembled container and the detection head need to be repeatedly calibrated. At the same time, there is a stagnant layer in the solution inside the container. Once the solution inside the container is stirred, a large number of bubbles will appear in the solution, which will affect the accuracy of the particle size analyzer.

[0004] In view of this, a conductive slurry laser particle size analyzer with centering adjustment was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows: A conductive slurry laser particle size analyzer with centering adjustment includes an instrument assembly, a calibration liquid exchange mechanism disposed within the instrument assembly, a slurry preparation mechanism mounted on the calibration liquid exchange mechanism, and two sets of pre-storage mechanisms for the mixing liquid mounted on the slurry preparation mechanism. The instrument assembly includes a base, a machine base movably mounted on the base, and a detection head mounted on the top of the machine base. The calibration liquid exchange mechanism includes a slider disposed on the upper surface of the base, a top plate disposed on the top of the slider, and vertically distributed limiting rods fixedly mounted on the outside of the top plate. A drain pipe is fixedly mounted on the top plate and communicates with the inner cavity of the top plate. The slurry preparation mechanism includes a bellows fixedly connected to the top of the top plate, a sealing base fixedly mounted on the other end of the bellows, a storage tank fixedly mounted on the top of the sealing base, a locking nut movably mounted in the inner cavity of the storage tank, and a pad fixedly mounted on the top of the locking nut, with the pad movably mounted outside the limiting rods. The detection head is adapted to penetrate into the interior of the pad. The two sets of pre-storage mechanisms for the mixing liquid are used for pre-storing the conductive slurry.

[0007] In a preferred embodiment, the present invention may be further configured such that: a groove is formed on the outer wall of the liquid storage tank; The pre-storage mechanism for the mixing solution includes a conduit installed in the slot, a sample storage tank fixedly installed at the top of the conduit, a scale fixedly installed in the sample storage tank, a pad fixedly installed at the top of the scale, a pressure regulating stud movably installed inside the pad, and a plug movably installed at the top of the pressure regulating stud.

[0008] In a preferred embodiment, the present invention may be further configured as follows: a groove is provided on the upper surface of the base, a plug is provided at the outer end of the base, four first bolts are inserted into the base, and a threaded rod is movably installed inside the plug and extends into the groove. The calibration fluid replacement mechanism also includes a slider movably installed in the inner cavity of the chute, a base plate fixedly installed on the top of the slider, four third bolts inserted into the inside of the base plate, and a top plate set on the top of the slider, while the four third bolts are fixedly installed in the top plate. Both the chassis and the top plate are fixedly equipped with machine covers, motors are installed inside the two machine covers, and deflection gears are installed on the motors. A first clamp is fixedly installed on one side of the top plate, and a second clamp is fixedly installed on the other side of the top plate. A stabilizing vertical rod is fixedly installed inside the first clamp, and a screw is movably installed inside the second clamp, with a first gear meshing with a deflection gear fixedly installed at the bottom end of the screw.

[0009] In a preferred embodiment, the present invention may be further configured as follows: two symmetrically distributed track plates are provided on both sides of the base, a second bolt is inserted into the track plate and fixedly installed in the base, a cover is installed on the top of the track plate, and a clamp is movably installed inside the track plate.

[0010] In a preferred embodiment, the present invention can be further configured such that both the stabilizing vertical rod and the screw are provided with reinforcing springs on their exterior.

[0011] In a preferred embodiment, the present invention can be further configured as follows: a first clamp is fixedly installed on one side of the sealing base, a second clamp is fixedly installed on the other side of the sealing base, and a stabilizing vertical rod is movably installed inside the first clamp, and a threaded section of a screw is movably installed inside the second clamp; The two reinforcing springs are respectively pressed against the bottom ends of the first clamp and the second clamp.

[0012] In a preferred embodiment, the present invention may be further configured as follows: a core tube is fixedly installed in the middle of the sealing base, an internal plug is movably installed inside the core tube, an adjusting screw is movably installed in the sealing base and extends into the core tube, a second gear is fixedly installed at the inner end of the adjusting screw, a positioning plate is fixedly installed at the outer end of the adjusting screw, and a pin is inserted into the positioning plate. The inner wall of the built-in plug is provided with a rack adapted to mesh with the second gear.

[0013] In a preferred embodiment, the present invention can be further configured such that: a constant pressure tube is fixedly installed on the top of the locking nut, and a cover plate is installed on the internal thread of the built-in plug, and the cover plate is used to press the limiting rod; The constant pressure tube has a slot at its bottom, and the slot is located on the top surface of the locking nut.

[0014] In a preferred embodiment, the present invention can be further configured such that the slider has a T-shaped structure and a threaded hole adapted to the lead screw is provided in the middle of the slider.

[0015] In a preferred embodiment, the present invention may be further configured such that: a plug is movably mounted on the top of the pressure regulating stud, the plug being composed of a support plate and a T-shaped support rod, and a sealing gasket is installed at the bottom end of the T-shaped support rod, and the bottom end of the T-shaped support rod and the sealing gasket are adapted to penetrate into the interior of the sample storage tank.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. This invention movably installs the calibration liquid exchange mechanism in a groove on the upper surface of the base, and uses a pre-calibration method to center-align the liquid storage tank and the detection head. When the conductive slurry is poured into the inner cavity of the liquid storage tank and is sealed by the constant pressure of the cover plate, the slurry in the inner cavity of the liquid storage tank under constant pressure can avoid the formation of air bubbles during stirring, thereby avoiding interference to the detection head after the air bubbles are generated.

[0017] 2. This invention fixes two sets of pre-storage mechanisms for the proportioned solution on both sides of the top of the storage tank, and pre-fills the two sets of pre-storage mechanisms with conductive slurry. The conductive slurry can be filled in proportion without repeatedly disassembling and assembling the storage tank. Finally, the mixed solution inside the storage tank can be tested more efficiently and quickly without repeated calibration and adjustment, further improving the accuracy of the test data.

[0018] 3. By adopting a separate design for the slurry preparation mechanism and the calibration liquid exchange mechanism, after the mixed solution inside the storage tank is tested, there is no need to disassemble the storage tank. The storage tank is automatically lowered until the cover plate separates from the storage tank. Then, the solution inside the storage tank is transferred by using the height adjustment screw, thereby achieving rapid cleaning of the storage tank and sample tank after the test. Attached Figure Description

[0019] Figure 1 This is a schematic diagram illustrating the use of the present invention; Figure 2 This is a bottom view diagram of the present invention; Figure 3This is an exploded view of the instrument components of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the calibration fluid exchange mechanism of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7 This is an exploded view of the slurry preparation mechanism of the present invention; Figure 8 For the present invention Figure 7 A partial diagram of the explosion; Figure 9 For the present invention Figure 8 Enlarged view of point C in the middle; Figure 10 This is a schematic diagram of the pre-storage mechanism for the mixing solution of the present invention.

[0020] Figure label: 100. Instrument components; 110. Base; 1101. Slide groove; 1102. Plug; 1103. First bolt; 1104. Lead screw; 120. Track plate; 1201. Second bolt; 1202. Cover; 130. Clamping plate; 140. Machine base; 1401. Detection head; 200. Calibration and fluid replacement mechanism; 210. Slider; 2101. Base; 2102. Third bolt; 220. Machine cover; 230. Top plate; 2301. Drain pipe; 2302. First clamp; 2303. Second clamp; 240. Motor; 2401. Deflection gear; 250. Screw; 2501. First gear; 260. Stabilizing vertical rod; 270. Limiting rod; 280. Reinforcing spring; 300. Slurry preparation mechanism; 310. Sealing base; 3101. First chuck; 3102. Second chuck; 3103. Core tube; 3104. Internal plug; 3105. Height adjustment screw; 3106. Gear; 3107. Positioning plate; 3108. Pin; 320. Bellows; 330. Liquid storage tank; 340. Gasket; 3401. Cover plate; 3402. Locking nut; 350. Constant pressure tube; 400. Pre-storage mechanism for the mixing solution; 410. Conduit; 420. Sample storage container; 4201. Scale; 4202. Gasket; 430. Plug; 4301. Sealing gasket; 440. Pressure regulating stud. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0023] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a conductive slurry laser particle size analyzer with centering adjustment.

[0024] Example 1: Combination Figures 1 to 10 As shown, the present invention provides a conductive slurry laser particle size analyzer with centering adjustment, comprising an instrument assembly 100, a calibration liquid exchange mechanism 200 disposed within the instrument assembly 100, a slurry preparation mechanism 300 mounted on the calibration liquid exchange mechanism 200, and two sets of pre-storage mechanisms 400 mounted on the slurry preparation mechanism 300. The instrument assembly 100 provides a quick-assembly platform for the calibration liquid exchange mechanism 200 and performs detection on the conductive slurry. The calibration liquid exchange mechanism 200 provides a lifting platform for liquid exchange in the slurry preparation mechanism 300. The slurry preparation mechanism 300 holds the solution to be tested. The two sets of pre-storage mechanisms 400 transfer different sample solutions within the slurry preparation mechanism 300.

[0025] The instrument assembly 100 includes a base 110, a base 140 movably mounted on the base 110, a detection head 1401 mounted on the top of the base 140, two symmetrically distributed track plates 120 on both sides of the base 110, a second bolt 1201 inserted into the track plate 120 and fixedly mounted in the base 110, a cover 1202 mounted on the top of the track plate 120, and a clamping plate 130 movably mounted inside the track plate 120. The calibration fluid replacement mechanism 200 includes a slider 210 disposed on the upper surface of the base 110, a top plate 230 disposed on the top of the slider 210, and a limiting rod 270 fixedly installed on the outside of the top plate 230 and vertically distributed. A drain pipe 2301 is fixedly installed on the top plate 230 and the drain pipe 2301 is connected to the inner cavity of the top plate 230. The slurry preparation mechanism 300 includes a bellows 320 fixedly connected to the top of the top plate 230, a sealing base 310 fixedly installed at the other end of the bellows 320, a liquid storage tank 330 fixedly installed on the top of the sealing base 310, a locking nut 3402 movably installed in the inner cavity of the liquid storage tank 330, and a pad 340 fixedly installed on the top of the locking nut 3402, and the pad 340 is movably installed outside the limiting rod 270. The detection head 1401 is adapted to penetrate into the interior of the pad 340; The outer wall of the liquid storage tank 330 has a slot; The pre-storage mechanism 400 includes a conduit 410 installed in the slot, a sample storage tank 420 fixedly installed at the top of the conduit 410, a scale 4201 fixedly installed in the sample storage tank 420, a pad 4202 fixedly installed at the top of the scale 4201, a pressure regulating stud 440 movably installed inside the pad 4202, and a plug 430 movably installed at the top of the pressure regulating stud 440. A plug 430 is movably installed on the top of the pressure regulating stud 440. The plug 430 consists of a support plate and a T-shaped support rod. A sealing gasket 4301 is installed at the bottom of the T-shaped support rod. The bottom of the T-shaped support rod and the sealing gasket 4301 are adapted to penetrate into the interior of the sample storage tank 420.

[0026] In use, the slider 210 is pre-installed inside the slide groove 1101. Then, the threaded section of the lead screw 1104 is inserted into the slide groove 1101, and the plug 1102 is fixedly installed on the outer end of the base 110 using two first bolts 1103. Then, the lead screw 1104 is adjusted to rotate forward until the slider 210 and the base 2101 move to the very end of the slide groove 1101. Next, the pin 3108 is pulled out, and the height adjustment screw 3105 is adjusted to rotate forward until the height adjustment screw 3105 drives the second gear 3106 to rotate. The built-in plug 3104 is driven to rise upward until the top of the built-in plug 3104 is pressed against the top of the core tube 3103. At this time, the inner cavity of the liquid storage tank 330 will form an effective storage space. Then, the selected sample liquid is poured into the inner cavity of the liquid storage tank 330 in sequence, and the two pressure adjusting screws 440 are adjusted to drive the two plugs 430 to rise until the negative pressure generated in the inner cavity of the two sample storage tanks 420 effectively draws in the sample liquid and temporarily stores it. The sealing performance of the inner cavity of the storage tank 330 is tested in advance by the above method. After the sample liquid is drawn by the two sets of proportioning liquid pre-storage mechanisms 400, the main sample liquid is poured into the inner cavity of the storage tank 330. After the storage tank 330 rises to the highest position, the locking nut 3402 will be inserted into the inner cavity of the storage tank 330. At this time, the stagnant layer of the solution in the inner cavity of the storage tank 330 will be compressed by the locking nut 3402 until the solution in the inner cavity of the storage tank 330 is completely sealed. This process can effectively reduce the formation of air bubbles in the solution inside the storage tank 330 when it is stirred.

[0027] Example 2: Combination Figures 3 to 7 As shown, based on Embodiment 1, the upper surface of the base 110 is provided with a sliding groove 1101, a plug 1102 is provided at the outer end of the base 110, four first bolts 1103 are inserted into the base 110, and a lead screw 1104 is movably installed inside the plug 1102 and passes through the sliding groove 1101.

[0028] Preferably, the lead screw 1104 is installed in the hole inside the plug 1102 via a bearing, and the inner end of the lead screw 1104 is inserted into the recess in the inner wall of the slide groove 1101, while the inner side of the slide groove 1101 is coated with lubricating oil.

[0029] The calibration fluid replacement mechanism 200 also includes a slider 210 movably installed in the inner cavity of the slide 1101, a base plate 2101 fixedly installed on the top of the slider 210, four third bolts 2102 inserted into the base plate 2101, and a top plate 230 is located on the top of the slider 210, while the four third bolts 2102 are fixedly installed in the top plate 230. A cover 220 is fixedly installed on both the chassis 2101 and the top plate 230, a motor 240 is installed inside the two covers 220, and a deflection gear 2401 is installed on the motor 240; A first clamp 2302 is fixedly installed on one side of the top plate 230, and a second clamp 2303 is fixedly installed on the other side of the top plate 230. A stabilizing vertical rod 260 is fixedly installed inside the first clamp 2302, and a screw 250 is movably installed inside the second clamp 2303. A first gear 2501 that meshes with the deflection gear 2401 is fixedly installed at the bottom end of the screw 250. The slider 210 has a T-shaped structure, and the middle part of the slider 210 has a threaded hole adapted to the lead screw 1104. Both the stabilizing vertical rod 260 and the screw 250 are equipped with reinforcing springs 280 on their exterior.

[0030] Preferably, four third bolts 2102 are inserted into the interior of the chassis 2101, and the four third bolts 2102 are fixedly installed inside the top plate 230, while the two covers 220 are respectively welded to the top of the chassis 2101 and the bottom of the top plate 230. The bottom end of the screw 250 is mounted inside the second clamp 2303 via a bearing.

[0031] Specifically, the motor 240 is started until the transmission shaft inside the motor 240 engages with the first gear 2501 of the deflection gear 2401 and the screw 250. The second clamp 2303 and the top plate 230 will then rise steadily until the detection head 1401 is fully inserted into the middle of the inner cavity of the storage tank 330. After the air layer at the top of the solution in the inner cavity of the storage tank 330 is eliminated, as the impeller at the bottom of the detection head 1401 rotates and stirs the solution in the inner cavity of the storage tank 330, the continuously stirred solution will not generate a large number of bubbles due to the air layer.

[0032] Example 3: Combination Figures 7 to 10As shown, in the above embodiment, a first clamp 3101 is fixedly installed on one side of the sealing base 310, a second clamp 3102 is fixedly installed on the other side of the sealing base 310, and a stabilizing vertical rod 260 is movably installed in the first clamp 3101, and the threaded section of the screw 250 is movably installed inside the second clamp 3102. Two reinforcing springs 280 are respectively pressed against the bottom ends of the first clamp 3101 and the second clamp 3102.

[0033] Preferably, the first clamp 2302 and the first chuck 3101 have the same structure, and the inside of the first chuck 3101 is coated with lubricating oil, while the top of the stabilizing vertical rod 260 is movably installed inside the first chuck 3101.

[0034] A core tube 3103 is fixedly installed in the middle of the sealing base 310, an internal plug 3104 is movably installed inside the core tube 3103, an adjusting screw 3105 is movably installed inside the sealing base 310 and extends into the core tube 3103, a second gear 3106 is fixedly installed at the inner end of the adjusting screw 3105, a positioning plate 3107 is fixedly installed at the outer end of the adjusting screw 3105, and a pin 3108 is inserted into the positioning plate 3107. The inner wall of the built-in plug 3104 is provided with a rack adapted to mesh with the second gear 3106; A constant pressure tube 350 is fixedly installed on the top of the locking nut 3402, and a cover plate 3401 is installed on the internal thread of the built-in plug 3104, and the cover plate 3401 is used to press the limit rod 270. The bottom of the constant pressure tube 350 has a slot, and the slot is located on the top surface of the locking nut 3402.

[0035] Preferably, the outer wall of the sealing base 310 is provided with a U-shaped groove, and the positioning plate 3107 is located inside the U-shaped groove, while the pin 3108 is inserted into the inner wall of the U-shaped groove. The built-in plug 3104 consists of a cylindrical end and a fan-shaped plate. The fan-shaped plate has a recessed hole on its outer side, and the rack is fixedly installed on the inner wall of the recessed hole. The top of the cylindrical end is provided with a fan-shaped pad that is adapted to be inserted into the core tube 3103.

[0036] The working principle and usage process of this invention are as follows: First, loosen the cover plate 3401, then start the motor 240 until the transmission shaft inside the motor 240 engages with the deflection gear 2401 to drive the first gear 2501 and the screw 250. The second chuck 3102 will descend at a constant speed along the threaded section of the screw 250. Finally, the sealing base 310 and the liquid storage tank 330 will be pressed together and move towards the upper surface of the top plate 230 until the detection head 1401 is withdrawn from the inner cavity of the cover 220. The two sets of pre-storage mechanisms 400, fixedly installed on the storage tank 330, will also descend accordingly. Then, the experimenter will pour the sample solution containing the two metals into the inner cavity of the storage tank 330 in sequence. Next, the two pressure regulating screws 440 will be adjusted sequentially until the bottom of the plug 430, in conjunction with the sealing gasket 4301, rises upwards along the bottom of the inner cavity of the sample tank 420 until both sample tanks 420 are filled with the sample solution containing the two metals. Finally, the storage tank 300 after extracting the sample solution will be rinsed with clean water. The inner cavity of the storage tank 330 is cleaned, and then the screw 3105 is reversed and raised until the inner plug 3104 descends into the inner cavity of the core tube 3103. The washing solution in the inner cavity of the storage tank 330 can then be transferred to the inner cavity of the top plate 230 through the core tube 3103 and the bellows 320. Finally, the solution in the inner cavity of the top plate 230 will be discharged outward from the drain pipe 2301. After the inner cavity of the storage tank 330 is cleaned, the screw 3105 is turned forward until the inner plug 3104 closes at the top of the core tube 3103. Next, the main sample liquid is poured into the inner cavity of the storage tank 330 until the main sample liquid is two-thirds of the volume of the inner cavity of the storage tank 330. Then, the motor 240 is controlled to rotate forward. With the transmission of the deflection gear 2401, the first gear 2501 and the screw 250 will help push the sealing base 310 and the storage tank 330 to quickly move towards the detection head 1401 until the locking nut 3402 is inserted into the inner cavity of the storage tank 330 again. The air in the inner cavity of the storage tank 330 is expelled by the locking nut 3402, and the excess main sample liquid will be transferred to the top of the locking nut 3402 through the groove at the bottom of the constant pressure tube 350. As the impeller at the bottom of the detection head 1401 rotates and stirs the main sample liquid inside the storage tank 330, the main sample liquid at constant pressure avoids the formation of air bubbles or vacant areas during stirring, preventing light interference from air bubbles or vacant areas on the detection head 1401. This method also serves as a pre-calibration of the detection head 1401 before detecting conductive slurry. After the comparative data measurement is completed, the two pressure regulating studs 440 are adjusted sequentially until the bottom plug of the plug 430, in conjunction with the sealing gasket 4301, compresses the sample liquid inside the storage tank 420. The release amount of the sample liquid inside the storage tank 420 is controlled by observing the scale 4201. Finally, the sample liquid inside the storage tank 420 is mixed with the main sample liquid in the storage tank 330, and then further detection can be performed. For the detection of various liquids, the above method can be used. The center of the inner cavity of the repeatedly rising and falling storage tank 330 is always precisely calibrated with the bottom of the detection head 1401.

[0037] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A conductive slurry laser particle size analyzer with centering adjustment, comprising an instrument assembly (100), characterized in that, It also includes a calibration liquid exchange mechanism (200) disposed within the instrument assembly (100), a slurry preparation mechanism (300) mounted on the calibration liquid exchange mechanism (200), and two sets of proportioning liquid pre-storage mechanisms (400) mounted on the slurry preparation mechanism (300). The instrument assembly (100) includes a base (110), a base (140) movably mounted on the base (110), and a detection head (1401) mounted on the top of the base (140). The calibration fluid exchange mechanism (200) includes a slider (210) disposed on the upper surface of the base (110), a top plate (230) disposed on the top of the slider (210), and a limiting rod (270) fixedly installed on the outside of the top plate (230) and vertically distributed. A drain pipe (2301) is fixedly installed on the top plate (230), and the drain pipe (2301) is connected to the inner cavity of the top plate (230). The slurry preparation mechanism (300) includes a bellows (320) fixedly connected to the top of the top plate (230), a sealing base (310) fixedly installed at the other end of the bellows (320), a liquid storage tank (330) fixedly installed on the top of the sealing base (310), a locking nut (3402) movably installed in the inner cavity of the liquid storage tank (330), and a pad (340) fixedly installed on the top of the locking nut (3402), and the pad (340) is movably installed outside the limiting rod (270); The detection head (1401) is adapted to penetrate into the interior of the pad (340); The two sets of the pre-storage mechanism (400) are used to pre-store the conductive slurry; The sealing base (310) is fixedly installed with a core tube (3103) in the middle, a built-in plug (3104) is movably installed inside the core tube (3103), an adjusting screw (3105) is movably installed inside the sealing base (310) and extends into the core tube (3103), a second gear (3106) is fixedly installed at the inner end of the adjusting screw (3105), a positioning plate (3107) is fixedly installed at the outer end of the adjusting screw (3105), and a pin (3108) is inserted into the positioning plate (3107). The inner wall of the built-in plug (3104) is provided with a rack adapted to mesh with the second gear (3106); A constant pressure tube (350) is fixedly installed on the top of the locking nut (3402), and a cover plate (3401) is installed on the internal thread of the built-in plug (3104), and the cover plate (3401) is used to press the limiting rod (270). The bottom of the constant pressure tube (350) is provided with a groove, and the groove is located on the top surface of the locking nut (3402).

2. The conductive slurry laser particle size analyzer with centering adjustment according to claim 1, characterized in that, The outer wall of the liquid storage tank (330) is provided with a slot; The pre-storage mechanism (400) includes a conduit (410) installed in the slot, a sample storage tank (420) fixedly installed at the top of the conduit (410), a scale (4201) fixedly installed in the sample storage tank (420), a pad (4202) fixedly installed at the top of the scale (4201), a pressure regulating stud (440) movably installed inside the pad (4202), and a plug (430) movably installed at the top of the pressure regulating stud (440).

3. A conductive slurry laser particle size analyzer with centering adjustment according to claim 1, characterized in that, The upper surface of the base (110) is provided with a sliding groove (1101), a plug (1102) is provided at the outer end of the base (110), four first bolts (1103) are inserted into the base (110), and a threaded rod (1104) is movably installed inside the plug (1102) and passes through the sliding groove (1101). The calibration fluid exchange mechanism (200) also includes a slider (210) movably installed in the inner cavity of the slide (1101), a base (2101) fixedly installed on the top of the slider (210), four third bolts (2102) inserted into the base (2101), and a top plate (230) set on the top of the slider (210), while the four third bolts (2102) are fixedly installed in the top plate (230); A cover (220) is fixedly installed on both the chassis (2101) and the top plate (230), a motor (240) is installed inside the two covers (220), and a deflection gear (2401) is installed on the motor (240). A first clamp (2302) is fixedly installed on one side of the top plate (230), and a second clamp (2303) is fixedly installed on the other side of the top plate (230). A stabilizing vertical rod (260) is fixedly installed inside the first clamp (2302), and a screw (250) is movably installed inside the second clamp (2303). A first gear (2501) meshing with a deflection gear (2401) is fixedly installed at the bottom end of the screw (250).

4. A conductive slurry laser particle size analyzer with centering adjustment according to claim 1, characterized in that, The base (110) has two symmetrically distributed track plates (120) on both sides, a second bolt (1201) inserted into the track plate (120) and fixedly installed in the base (110), a cover (1202) installed on the top of the track plate (120), and a clamp (130) movably installed inside the track plate (120).

5. A conductive slurry laser particle size analyzer with centering adjustment according to claim 3, characterized in that, Both the stabilizing vertical rod (260) and the screw (250) are equipped with reinforcing springs (280).

6. A conductive slurry laser particle size analyzer with centering adjustment according to claim 5, characterized in that, A first clamp (3101) is fixedly installed on one side of the sealing base (310), and a second clamp (3102) is fixedly installed on the other side of the sealing base (310). The stabilizing vertical rod (260) is movably installed inside the first clamp (3101), and the threaded section of the screw (250) is movably installed inside the second clamp (3102). The two reinforcing springs (280) are respectively pressed against the bottom ends of the first clamp (3101) and the second clamp (3102).

7. A conductive slurry laser particle size analyzer with centering adjustment according to claim 1, characterized in that, The slider (210) has a T-shaped structure, and the middle part of the slider (210) has a threaded hole adapted to the lead screw (1104).

8. A conductive slurry laser particle size analyzer with centering adjustment according to claim 2, characterized in that, A plug (430) is movably installed on the top of the pressure regulating stud (440). The plug (430) is composed of a support plate and a T-shaped support rod. A sealing gasket (4301) is installed at the bottom end of the T-shaped support rod. The bottom end of the T-shaped support rod and the sealing gasket (4301) are adapted to penetrate into the interior of the sample storage tank (420).

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