Efficient micro-fine particle elutriation device

Abstract

The utility model belongs to the technical field of mineral separation experimental equipment, and particularly discloses a micro-fine particle high-efficiency elutriation device, which is characterized in that a through hole is arranged at the lower part of the side wall of a transparent cylinder, the lower edge of the through hole is not lower than a lower liquid level line, and a diversion trench is arranged outside the through hole, a diversion pipe is arranged at the bottom of one side of the diversion trench, and the through hole is provided with a plug cover with good water sealing property; a fixed pressurizing frame is arranged around the through hole, a screw hole parallel to the axis of the through hole is formed in the pressurizing frame, an adjusting base plate is slidably arranged between the pressurizing frame and the plug cover in the flow guide groove, the plug cover is fixed to the end, facing the transparent cylinder, of the adjusting base plate, and the end, away from the transparent cylinder, of the adjusting base plate is connected with a pressurizing screw meshed with the screw hole in a threaded mode. The pressurizing frame is fixedly arranged in the flow guide groove, and the adjusting base plate is adjusted through the screws in threaded connection with the pressurizing frame, so that pressurizing sealing of the plug cover and the through hole and accurate adjustment of the opening size are achieved, the water sealing reliability of the plug cover is effectively improved, and the device has the advantages of being simple in structure, reliable in water sealing, high in accuracy and good in grading effect.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral processing experimental equipment, in particular to a fine particle high-efficiency water separation device with simple structure, reliable water seal, high accuracy and good classification effect. Background Art

[0002] The current industrial definition of fine particles is as those with a particle size less than 200 mesh (0.074 mm). Classification is an integral component of the pulverization process, separating solid particles by size based on their settling velocities in a fluid medium. Water is the most commonly used fluid for classification, known as wet classification or hydraulic classification, followed by air, known as dry classification or pneumatic classification. The basic particle size testing methods used in industries such as chemical and mineral processing include screening, microscopy (imaging), and sedimentation, with sedimentation being further divided into gravity and centrifugal methods.

[0003] Currently, when using gravity sedimentation to size-classify fine-grained solid particle groups, the method mainly relies on a device assembled from a large beaker, a U-shaped tube, and a rubber tube. The material to be classified is added, and clean water is added according to the sedimentation height calculated by the Stokes formula. After thorough stirring, the time is counted and the particles are classified at different time points. Its advantages are: the equipment is simple and easy to operate; its disadvantages are: the assembly process is prone to human error, the classification operation process is relatively inconvenient, the classification process is labor-intensive, water-intensive, and the classification efficiency is low and time-consuming. Therefore, it is very necessary to develop a fine-grain classification device that is easy to operate and has high classification efficiency.

[0004] Existing technologies implement automated solid particle classification based on gravity sedimentation by adding an automatically controlled stirring device, a quantitative addition device, and a discharge mechanism to a transparent sedimentation tank. However, these devices also suffer from high equipment costs, the valve body is prone to clogging, internal classification points can be missed, and cleaning is inconvenient after use. Alternatively, a discharge hole with a plug that can be removed and opened in the side wall of a transparent cylinder, with the hole elevated above the bottom, can be used to control the storage or discharge of liquid within the transparent cylinder by simply removing and inserting the plug. This allows for simple and reliable sedimentation-based fine particle classification. However, since the plug cover is sealed only by an interference fit with the discharge hole, when the water pressure in the transparent cylinder is high or the interference fit is reduced due to wear over a long period of time, the water seal between the plug cover and the discharge hole becomes insufficient, which can easily lead to premature leakage or even sudden water seal failure; and since the plug cover can only fully open and close the discharge hole, it is not only difficult to adjust the size of the discharge flow rate as needed, but also when the plug cover is fully opened for discharge, due to the large initial flow rate and pressure, turbulence is likely to form at the discharge port, affecting the settled particles at the bottom of the cylinder, thereby affecting the accuracy and grading effect of the classification. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a fine particle high-efficiency water analysis device with a simple structure, reliable water seal, high precision, and good classification effect.

[0006] The utility model is realized as follows: It includes a transparent cylinder. A through hole is provided at the lower part of the side wall of the transparent cylinder, and the lower edge of the through hole is not lower than the lower liquid level line of the transparent cylinder. A diversion groove is arranged around the through hole on the outside of the transparent cylinder. A funnel-shaped diversion pipe is provided at the bottom of the side of the diversion groove away from the transparent cylinder. The through hole is equipped with a plug cover with good water sealing performance. The plug cover is provided with an arc-shaped inner side surface, and the inner side surface is consistent with the inner wall radian of the transparent cylinder adjacent to the through hole and is flush.

[0007] A pressurizing frame fixedly connected to the side wall of the transparent cylinder or the side wall of the diversion groove is arranged around the through hole in the diversion groove. A threaded hole parallel to the axis of the through hole is provided on the pressurizing frame. An adjusting backing plate is slidably arranged between the pressurizing frame and the plug cover in the diversion groove. The plug cover is fixedly arranged at one end of the adjusting backing plate facing the transparent cylinder. A pressurizing screw threadedly engaged with the threaded hole is connected to the other end of the adjusting backing plate away from the transparent cylinder.

[0008] Further, the pressurizing frame is a flat plate and is fixedly connected to the side walls of the diversion groove at both ends. The two sides of the adjusting backing plate are slidably connected to the inner wall of the diversion groove; or the pressurizing frame is a "U" - shaped structure and is fixedly connected to the side walls of the transparent cylinder adjacent to the through hole at both ends. The two sides of the adjusting backing plate are slidably connected to the inner wall of the pressurizing frame.

[0009] Further, the side wall of the adjusting backing plate away from the transparent cylinder abuts against or is rotatably connected to the end face of the stud of the pressurizing screw; a gap is provided between the bottom end of the adjusting backing plate and the bottom surface of the diversion groove, or through holes are provided below or on the side of the plug cover of the adjusting backing plate.

[0010] Further, the adjusting backing plate is provided with a connection hole. Two annular grooves are spaced on one side of the stud of the pressurizing screw away from the screw head. The pressurizing screw rotatably extends into the connection hole, and the two annular grooves are respectively arranged on both sides of the connection hole. Spring retaining rings with an outer diameter larger than the inner diameter of the connection hole are respectively sleeved in the two annular grooves of the pressurizing screw.

[0011] A blind hole coaxial with the connection hole and with a diameter larger than the spring retaining ring is provided on the end face of the plug cover facing the adjusting backing plate. The distance between the two annular grooves on the pressurizing screw is not less than the depth of the connection hole.

[0012] Furthermore, a rubber sealing portion is provided on the side of the plug cover facing the through hole, and a limiting portion extending laterally is provided on the outer side of the rubber sealing portion of the plug cover. A protrusion having the same shape as the through hole is provided at the contact portion between the plug cover and the through hole, and a circumferential groove is provided on the outer wall of the protrusion. The rubber sealing portion is an independent rubber sealing cover and is tightly fitted in the groove.

[0013] Furthermore, a convex ring having a structure similar to that of the groove is provided on the inner side wall of the rubber sealing portion, and the convex ring of the rubber sealing portion is tightly sleeved in the groove.

[0014] Furthermore, a joint bearing is fixedly provided on one end of the plug cover away from the through hole, and one end of the stud of the pressure screw away from the screw head is fixedly connected to the inner hole of the joint bearing.

[0015] Furthermore, the pressure frame is provided with a guide hole on at least one side of the screw hole, and the end of the adjustment plate away from the transparent cylinder is fixedly connected to a guide rod that slides through the guide hole.

[0016] Furthermore, a coil spring is sleeved between the adjusting pad and the pressure frame on the guide rod, and the two ends of the coil spring are respectively in contact with the adjusting pad and the pressure frame.

[0017] Beneficial effects of the utility model:

[0018] 1. The utility model fixes a pressure frame in the guide groove outside the transparent cylinder, and uses a screw threaded on the pressure frame to slide and adjust the adjustment pad. By adjusting the pad, the opening and closing size of the plug cover and the through hole on the transparent cylinder can be freely adjusted, so that the plug cover that seals the through hole can be reliably pressurized, thereby avoiding leakage caused by insufficient water sealing and even sudden water seal failure, effectively improving the water seal reliability of the plug cover; and the size of the opening can be adjusted as needed to accurately control the discharge flow rate, thereby avoiding turbulence caused by excessive flow and affecting the sedimentation particles at the bottom of the cylinder, which can significantly improve the accuracy and grading effect of classification.

[0019] 2. The utility model provides a guide hole on the screw hole side of the pressure frame, and provides a guide rod that slides through the guide hole and is fixedly connected to the adjustment pad. The guide rod solves the problem of excessive sliding clearance caused by manufacturing errors of the adjustment pad and the sliding guide groove side wall or the pressure frame, which makes it difficult to align the plug cover and the through hole when opening and closing, resulting in insufficient water seal reliability.

[0020] Therefore, the utility model has the characteristics of simple structure, reliable water seal, high accuracy and good grading effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 for Figure 1 A top view of

[0023] Figure 3 for Figure 2 Sectional view 1 (pressure screw abuts against adjustment pad);

[0024] Figure 4 for Figure 2 Sectional view 2 (the pressure screw and the adjusting plate are connected by a spring collar);

[0025] Figure 5 for Figure 2 Sectional view 3 (the pressure screw and the adjustment plate are connected by a spherical bearing);

[0026] Figure 6 for Figure 4 A partial enlarged view;

[0027] In the figure: 1-transparent cylinder, 2-plug cover, 21-inner side, 22-rubber sealing part, 23-blind hole, 24-limiting part, 25-protrusion, 26-groove, 3-guide groove, 4-guide pipe, 5-pressure frame, 51-guide hole, 6-adjusting pad, 7-pressure screw, 71-spring clamp, 8-spherical bearing. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] like Figures 1 to 6 As shown, the utility model includes a transparent cylinder 1, a through hole is provided at the lower portion of the side wall of the transparent cylinder 1, the lower edge of the through hole is not lower than the lower liquid level line of the transparent cylinder 1, a guide groove 3 is provided on the outside of the transparent cylinder 1 around the through hole, a funnel-shaped guide tube 4 is provided at the bottom of the guide groove 3 on the side away from the transparent cylinder 1, the through hole is equipped with a plug cover 2 with good water sealing performance, the plug cover 2 is provided with a curved inner side surface 21, the inner side surface 21 is consistent with the curvature of the inner wall of the transparent cylinder 1 adjacent to the through hole and is flush;

[0030] A pressure frame 5 is arranged around the through hole in the guide groove 3 and is fixedly connected to the side wall of the transparent cylinder 1 or the side wall of the guide groove 3. A screw hole parallel to the axis of the through hole is provided on the pressure frame 5. An adjustment pad 6 is slidingly arranged between the pressure frame 5 and the plug cover 2 in the guide groove 3. The plug cover 2 is fixedly arranged on the end of the adjustment pad 6 facing the transparent cylinder 1, and the end of the adjustment pad 6 away from the transparent cylinder 1 is connected to a pressure screw 7 that is threadedly engaged with the screw hole.

[0031] The pressure-applying frame 5 is a flat plate and is fixedly connected to the side walls of the diversion channels 3 at both ends. The two sides of the adjusting cushion plate 6 are slidably connected to the inner walls of the diversion channels 3; or the pressure-applying frame 5 is a "U" - shaped structure and is fixedly connected to the side walls of the transparent cylinders 1 adjacent to the through holes at both ends. The two sides of the adjusting cushion plate 6 are slidably connected to the inner walls of the pressure-applying frame 5.

[0032] The pressure-applying frame 5 is provided with diversion holes 51 above and / or below the screw holes.

[0033] Such as Figure 3 、 4 As shown in and 5, the side wall of the adjusting cushion plate 6 far from the transparent cylinder 1 abuts against or is rotatably connected to the end face of the stud of the pressure-applying screw 7; a gap is provided between the bottom end of the adjusting cushion plate 6 and the bottom surface of the diversion channel 3, or the adjusting cushion plate 6 is provided with through holes below or on the side of the plug cover 2.

[0034] The adjusting cushion plate 6 is provided with a connecting hole. Two annular grooves are spaced on one side of the stud of the pressure-applying screw 7 far from the screw head. The pressure-applying screw 7 rotatably extends into the connecting hole and the two annular grooves are respectively arranged on both sides of the connecting hole. Spring retaining rings 71 with an outer circumferential diameter larger than the inner diameter of the connecting hole are respectively sleeved in the two annular grooves of the pressure-applying screw 7.

[0035] On the end face of the plug cover 2 facing the adjusting cushion plate 6, there is a blind hole 23 coaxial with the connecting hole and with a diameter larger than the spring retaining ring 71. The distance between the two annular grooves on the pressure-applying screw 7 is not less than the depth of the connecting hole.

[0036] One end of the plug cover 2 far from the through hole is fixedly provided with a spherical plain bearing 8. One end of the stud of the pressure-applying screw 7 far from the screw head is fixedly connected to the inner hole of the spherical plain bearing 8.

[0037] Such as Figure 6 As shown in, on one side of the plug cover 2 facing the through hole, a rubber sealing part 22 is sleeved. The plug cover 2 is provided with a limiting part 24 extending to the side on the outside of the rubber sealing part 22. The contact part of the plug cover 2 and the through hole is provided with a protruding part 25 having the same shape as the through hole. A circumferential groove 26 is provided on the outer wall of the protruding part 25. The rubber sealing part 22 is an independent rubber sealing cover and is tightly sleeved in the groove 26.

[0038] On the inner side wall of the rubber sealing part 22, there is a convex ring similar to the structure of the groove 26. The convex ring of the rubber sealing part 22 is tightly sleeved in the groove 26.

[0039] The pressure-applying frame 5 is further provided with guide holes on at least one side of the screw holes. One end of the adjusting cushion plate 6 far from the transparent cylinder 1 is fixedly connected with a guide rod slidably passing through the guide holes.

[0040] A coil spring (not shown) is sleeved on the guide rod between the adjustment pad 6 and the pressure frame 5 , and two ends of the coil spring are in contact with the adjustment pad 6 and the pressure frame 5 respectively.

[0041] The bottom end of the adjusting pad 6 abuts against the bottom of the guide groove 3 or a gap is provided therebetween.

[0042] The working principle and working process of this utility model are as follows:

[0043] like Figures 1 to 6 As shown, the present invention is used in a fine particle classification experiment: first, the pressure screw 7 on the pressure frame 5 is rotated to cause the adjustment pad 6 to drive the plug cover 2 toward the transparent cylinder 1, ultimately inserting the plug cover 2 into the through hole in the side wall of the transparent cylinder 1 to seal it. Then, the fine powder to be classified is placed into the transparent cylinder 1, and clean water is added to a predetermined height. After stirring and mixing, the mixture is stopped and timed. The particles begin to settle. When the predetermined classification time is reached, the pressure screw 7 is rotated in the opposite direction to remove the plug cover 2 from the through hole in the transparent cylinder 1. (When the pressure screw 7 abuts the adjustment pad 6, the plug cover 2 is removed from the through hole in the transparent cylinder 1. The adjustment pad 6 and the plug cover 2 can then be removed from the guide trough 3.) The slurry in the transparent cylinder 1 is discharged through the through hole and flows through the guide trough 3 and the guide pipe 4 to be collected in a designated container. This operation is repeated until the discharged liquid is clear and the fine particles are separated into coarse and fine particles.

[0044] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A fine-particle high-efficiency water separation device, comprising a transparent cylinder (1). A through hole is provided in the lower part of the side wall of the transparent cylinder (1), and the lower edge of the through hole is not lower than the lower liquid level line of the transparent cylinder (1). A diversion groove (3) is arranged outside the transparent cylinder (1) around the through hole. A funnel-shaped diversion pipe (4) is provided at the bottom of the side of the diversion groove (3) far away from the transparent cylinder (1). The through hole is equipped with a plug cover (2) with good water sealing property. The plug cover (2) is provided with an arc-shaped inner side surface (21), and the inner side surface (21) has the same radian and is flush with the inner wall of the transparent cylinder (1) on the adjacent side of the through hole. Features A pressure application frame (5) fixedly connected to the side wall of the transparent cylinder (1) or the side wall of the diversion groove (3) is arranged in the diversion groove (3) around the through hole. A screw hole parallel to the axis of the through hole is provided on the pressure application frame (5). An adjustment backing plate (6) is slidably arranged between the pressure application frame (5) and the plug cover (2) in the diversion groove (3). The plug cover (2) is fixedly arranged at one end of the adjustment backing plate (6) facing the transparent cylinder (1). A pressure application screw (7) threadedly engaged with the screw hole is connected to the end of the adjustment backing plate (6) far away from the transparent cylinder (1).

2. The micro-particle high-efficiency water separation device according to claim 1 is characterized in that The pressure application frame (5) is a flat plate and is fixedly connected to the side walls of the diversion groove (3) at both ends. The two sides of the adjustment backing plate (6) are slidably connected to the inner wall of the diversion groove (3); or the pressure application frame (5) is a "U"-shaped structure and is fixedly connected to the side walls of the transparent cylinder (1) on the adjacent sides of the through hole at both ends. The two sides of the adjustment backing plate (6) are slidably connected to the inner walls of the pressure application frame (5).

3. The micro-particle high-efficiency water separation device according to claim 1 is characterized in that The side wall of the adjustment backing plate (6) far away from the transparent cylinder (1) abuts against or is rotatably connected to the end face of the stud of the pressure application screw (7); a gap is provided between the bottom end of the adjustment backing plate (6) and the bottom surface of the diversion groove (3), or through holes are provided in the adjustment backing plate (6) below or on the side of the plug cover (2).

4. The micro-particle high-efficiency water separation device according to claim 3 is characterized in that The adjustment backing plate (6) is provided with a connection hole. Two annular grooves are spaced apart on the side of the stud of the pressure application screw (7) far away from the screw head. The pressure application screw (7) rotatably extends into the connection hole, and the two annular grooves are respectively arranged on both sides of the connection hole. Spring circlips (71) with an outer diameter larger than the inner diameter of the connection hole are respectively sleeved in the two annular grooves of the pressure application screw (7).

5. The micro-particle high-efficiency water separation device according to claim 4 is characterized in that A blind hole (23) coaxial with the connection hole and with a diameter larger than the spring circlip (71) is provided on the end face of the plug cover (2) facing the adjustment backing plate (6). The distance between the two annular grooves on the pressure application screw (7) is not less than the depth of the connection hole.

6. The micro-particle high-efficiency water separation device according to claim 3 is characterized in that A spherical plain bearing (8) is fixedly arranged at the end of the plug cover (2) far away from the through hole. The end of the stud of the pressure application screw (7) far away from the screw head is fixedly connected to the inner hole of the spherical plain bearing (8).

7. The micro-particle high-efficiency water separation device according to claim 1 is characterized in that A rubber sealing portion (22) is sleeved on the side of the plug cover (2) facing the through hole, a limiting portion (24) extending laterally is provided on the outer side of the rubber sealing portion (22) of the plug cover (2), a protrusion (25) having the same shape as the through hole is provided at the contact portion between the plug cover (2) and the through hole, a circumferential groove (26) is provided on the outer wall of the protrusion (25), and the rubber sealing portion (22) is an independent rubber sealing cover and is tightly sleeved in the groove (26).

8. The micro-particle high-efficiency water separation device according to claim 7, characterized in that A convex ring having a structure similar to that of the groove (26) is provided on the inner side wall of the rubber sealing portion (22), and the convex ring of the rubber sealing portion (22) is tightly sleeved in the groove (26).

9. The micro-particle high-efficiency water separation device according to any one of claims 1 to 8, characterized in that The pressure frame (5) is also provided with a guide hole on at least one side of the screw hole, and the end of the adjustment pad (6) away from the transparent cylinder (1) is fixedly connected to a guide rod that slides through the guide hole.

10. The micro-particle high-efficiency water separation device according to claim 9, characterized in that A coil spring is sleeved on the guide rod between the adjustment pad (6) and the pressure frame (5), and two ends of the coil spring are respectively in contact with the adjustment pad (6) and the pressure frame (5).

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