Conical vertical wet grinding apparatus

Abstract

The application discloses a conical vertical wet grinding device, which comprises a main shaft, a bearing is arranged at the upper end of the main shaft and connected with an upper machine seal connecting frame, the upper machine seal connecting frame is provided with a mounting cavity, a belt wheel is arranged in the mounting cavity, the bottom of the upper machine seal connecting frame is connected with a bearing box, the bottom of the bearing box is connected with a lower machine seal, the bottom of the lower machine seal is connected with a machine seal ceramic plate, the lower end of the machine seal ceramic plate is connected with an outer cylinder body, a conical inner cylinder body is arranged in the outer cylinder body, the conical inner cylinder body is provided with a discharging turbine assembly, the discharging turbine assembly is arranged on the main shaft, a discharging hole is formed in the main shaft, a discharging channel is arranged in the upper section of the main shaft, the bottom of the discharging channel is communicated with the discharging hole, a dispersing disc and a grinding assembly are arranged below the discharging turbine assembly, the outer cylinder body is connected with a feeding flange plate, a feeding through hole is formed in the feeding flange plate, and the bottom of the feeding through hole is connected with a feeding port. The discharging turbine assembly of the device is conical in structure, the centrifugal force generated by the discharging turbine assembly gradually increases, the separation of grinding beads and materials is facilitated, and the occurrence of the phenomenon of grinding beads running can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grinding equipment, in particular to a conical vertical wet grinding equipment. BACKGROUND

[0002] The grinding cavity of the traditional vertical sand mill is a vertical cylinder, and the outer diameter of the discharge turbine and the dispersing disc (or rotor bar pin) has no taper. The outer diameter of the same machine is consistent and uniformly arranged. In actual use, the most obvious disadvantage is that the function is single, and it is difficult to achieve the best grinding effect. In addition, the traditional structure also has a small amount of grinding medium running out of the grinding cavity with the material, causing resource waste, increasing material loss, and being not conducive to energy saving and environmental protection. SUMMARY

[0003] The present application provides a conical vertical wet grinding equipment to solve the problems mentioned in the background. To achieve the above purpose, the present application provides the following technical scheme: a conical vertical wet grinding equipment, comprising a main shaft, the upper end of the main shaft is connected to an upper machine seal connecting frame through a bearing, the inner side of the upper machine seal connecting frame is provided with a mounting cavity, the inside of the mounting cavity is provided with a pulley, the side of the mounting cavity is provided with a connecting port, the pulley is installed on the main shaft, the bottom of the upper machine seal connecting frame is connected to a bearing box, the bottom of the bearing box is connected to a lower machine seal, the bottom of the lower machine seal is connected to a machine seal ceramic plate, the lower end of the machine seal ceramic plate is connected to an outer cylinder body, the inner side of the outer cylinder body is provided with a conical inner cylinder, the lower end of the main shaft extends into the conical inner cylinder, the conical inner cylinder is provided with a discharge turbine assembly, the discharge turbine assembly is installed on the main shaft, the main shaft is provided with a material passing hole, the material passing hole corresponds to the position of the discharge turbine assembly, the inside of the upper segment of the main shaft is provided with a discharge channel, the bottom of the discharge channel is communicated with the material passing hole, the top of the main shaft is covered with a protective cover, the protective cover is provided with a discharge port, the bottom of the protective cover is connected to the upper machine seal connecting frame, the lower side of the discharge turbine assembly is provided with a dispersing disc, the lower side of the dispersing disc is provided with a grinding assembly, the dispersing disc and the grinding assembly are installed on the main shaft, the bottom of the outer cylinder body is connected to a feeding flange plate, the feeding flange plate is provided with a feeding through hole, the inside of the feeding through hole is provided with a steel ball, and the bottom of the feeding through hole is connected to a feeding port.

[0004] Preferably, the bottom of the bearing box is provided with a feeding cavity, the feeding cavity is provided with an opening, the machine seal ceramic plate is provided with a grinding medium feeding hole, and the grinding medium feeding hole is communicated with the inside of the conical inner cylinder.

[0005] Preferably, an upper machine seal is installed between the upper machine seal connecting frame and the main shaft.

[0006] Preferably, the discharge turbine assembly includes an upper discharge turbine and a lower discharge turbine, the outer diameter of the upper discharge turbine is larger than that of the lower discharge turbine, the upper discharge turbine and the lower discharge turbine are overall conical structures, the upper discharge turbine and the lower discharge turbine both include turbine plates, discharge turbine fins are provided along the circumference of the turbine plate, and a mounting hole is opened in the middle, when the upper discharge turbine and the lower discharge turbine are installed, the corresponding discharge turbine fins are relatively distributed up and down.

[0007] Preferably, the discharge turbine fins of the upper discharge turbine and the lower discharge turbine are distributed obliquely along the circumference of the turbine plate, and the oblique directions of the discharge turbine fins of the upper discharge turbine and the lower discharge turbine are opposite.

[0008] Preferably, both the upper and lower surfaces of the dispersion disk are provided with water drop-shaped grooves, and a plurality of the grooves are evenly distributed along the circumference of the dispersion disk.

[0009] Preferably, the grinding assembly includes multiple grinding chamber turbines and a bottom grinding chamber turbine, and the grinding chamber turbine and the bottom grinding chamber turbine both include a grinding chamber turbine plate, a connecting hole is opened in the middle of the grinding chamber turbine plate, a certain number of grinding blocks are evenly and obliquely distributed along the circumference on one side of the grinding chamber turbine plate, and through holes are opened between adjacent grinding blocks; a conical cover is installed on the other side of the grinding chamber turbine plate of the bottom grinding chamber turbine, and the middle of the conical cover is connected to the bottom of the main shaft by screws.

[0010] Preferably, the grinding chamber turbines are divided into multiple groups, with grinding turbine spacers installed between adjacent groups. The grinding chamber turbines in each group are installed facing each other, and the bottom grinding chamber turbines are fixed to the bottom of the main shaft after being installed facing each other.

[0011] Preferably, a discharge turbine spacer is installed between the dispersing disc and the discharge turbine assembly, and a grinding turbine spacer is installed between the dispersing disc and the grinding assembly.

[0012] The technical effects and advantages of the present invention are as follows: the discharge turbine assembly of the equipment is of a conical structure as a whole, and the centrifugal force generated by its variable diameter structure gradually increases, which is beneficial to the separation of grinding beads and materials, and can effectively reduce the occurrence of bead running; the grinding chamber turbine and the bottom grinding chamber turbine of the grinding assembly are in a two-piece stacking manner. When the turbine rotates, the centrifugal force causes a low-pressure area to form in the inner cavity of the turbine, and a number of evenly distributed circular holes are opened on the side wall of the grinding chamber turbine plate, where a contraction flow is formed, which enhances the collision force between the material and the grinding medium and accelerates grinding and circulation; the variable diameter structure cylinder of the conical inner cylinder, at the tapered variable diameter point, the flow cross-sectional area of ​​the grinding medium and the material is increased, the flow rate is reduced, and the stacking density of the grinding medium is reduced, thereby making the separation of the grinding medium and the material smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 is a sectional view of the internal structure of the present application;

[0015] Figure 3 is a schematic view of the upper discharge turbine structure of the present application;

[0016] Figure 4 is a schematic view of the lower discharge turbine structure of the present application;

[0017] Figure 5 is a schematic view of the dispersion disc structure of the present application;

[0018] Figure 6 is a schematic view of the grinding cavity turbine structure of the present application;

[0019] Figure 7 is a schematic view of the bottom grinding cavity turbine structure of the present application;

[0020] Figure 8 is a schematic view of the conical inner cylinder structure of the present application.

[0021] In the figure, 1. main shaft; 2. upper machine seal connecting frame; 3. mounting cavity; 4. belt pulley; 5. connecting port; 6. bearing box; 7. machine seal ceramic plate; 8. lower machine seal; 9. outer cylinder body; 10. conical inner cylinder; 11. material passing hole; 12. discharge passage; 13. protective cover; 14. discharge port; 15. upper machine seal; 16. dispersion disc; 17. groove; 18. discharge turbine spacer sleeve; 19. grinding turbine spacer sleeve; 20. feed flange plate; 21. feed through hole; 22. steel ball; 23. feed port; 24. feeding cavity; 25. opening; 26. upper discharge turbine; 27. lower discharge turbine; 28. turbine plate; 29. discharge turbine fin; 30. mounting hole; 31. bottom grinding cavity turbine; 32. grinding cavity turbine plate; 33. connecting hole; 34. grinding block; 35. through hole; 36. conical cover; 37. grinding cavity turbine. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific figures. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected or mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements.

[0023] EMBODIMENT

[0024] As Figures 1-8The conical vertical wet grinding equipment shown includes a main shaft 1, the upper end of which is connected to an upper mechanical seal connecting frame 2 via a bearing. An upper mechanical seal 15 is installed between the upper mechanical seal connecting frame 2 and the main shaft 1. A mounting cavity 3 is provided inside the upper mechanical seal connecting frame 2, and a pulley 4 is provided inside the mounting cavity 3. Connecting ports 5 are formed on both sides of the mounting cavity 3. The pulley 4 is mounted on the main shaft 1. The pulley 4 is connected to an external drive device via a belt passing through the connecting port 5. The external drive device drives the main shaft 1 to rotate via the pulley 4.

[0025] The bottom of the upper machine seal connecting frame 2 is connected to the bearing box 6, the bottom of the bearing box 6 is connected to the lower machine seal 8, the bottom of the lower machine seal 8 is connected to the machine seal ceramic plate 7, the lower end of the machine seal ceramic plate 7 is connected to the outer cylinder 9, the inner side of the outer cylinder 9 is equipped with a tapered inner cylinder 10, the lower end of the main shaft 1 extends into the tapered inner cylinder 10, the tapered inner cylinder 10 contains the grinding medium, and the tapered inner cylinder 10 is a variable diameter structure cylinder. At the tapered diameter change, the flow cross-sectional area of ​​the grinding medium and the material is increased, the flow rate is reduced, and the bulk density of the grinding medium is reduced, thereby making the separation of the grinding medium and the material smoother;

[0026] like Figure 2 As shown, the conical inner cylinder 10 is provided with a discharge turbine assembly, which is mounted on the main shaft 1. A feed hole 11 is provided on the main shaft 1, and the feed hole 11 corresponds to the position of the discharge turbine assembly. A discharge channel 12 is provided inside the upper section of the main shaft 1, and the bottom of the discharge channel 12 is connected to the feed hole 11. The top end of the main shaft 1 is covered with a protective cover 13, and a discharge port 14 is provided on the protective cover 13. The bottom of the protective cover 13 is connected to the upper machine seal connecting frame; the material inside the conical inner cylinder 10 enters the discharge channel 12 through the feed hole 11, and is transported from the discharge channel 12 to the discharge port 14 for discharge;

[0027] like Figure 5 As shown, a dispersion disk 16 is provided below the discharge turbine assembly, and water drop-shaped grooves 17 are provided on the upper and lower surfaces of the dispersion disk 16. The grooves 17 are provided with multiple grooves evenly distributed along the circumference of the dispersion disk 16. The grooves 17 enhance the collision force between the material and the grinding medium, and accelerate grinding and circulation; a grinding assembly is provided below the dispersion disk 16, and the dispersion disk 16 and the grinding assembly are mounted on the main shaft 1. A discharge turbine spacer 18 is installed between the dispersion disk 16 and the discharge turbine assembly, and a grinding turbine spacer 19 is installed between the dispersion disk 16 and the grinding assembly. The discharge turbine spacer 18 and the grinding turbine spacer 19 can prevent the dispersion disk 16 and other structural parts from being displaced during rotation; the bottom of the outer cylinder 9 is connected to a feed flange plate 20, and a feed through hole 21 is provided on the feed flange plate 20. A steel ball 22 is installed inside the feed through hole 21, and the bottom of the feed through hole 21 is connected to a feed port 23;

[0028] like Figure 2As shown, a feeding cavity 24 is formed at the bottom of the bearing box 6, an opening 25 is formed on the feeding cavity 24, and a grinding medium feeding hole is formed on the mechanical seal ceramic plate 7. The grinding medium feeding hole is connected to the interior of the conical inner cylinder 10, and grinding medium can be added to the conical inner cylinder 10 through the grinding medium feeding hole.

[0029] like Figure 3 and Figure 4 As shown, the discharge turbine assembly includes an upper discharge turbine 26 and a lower discharge turbine 27. The outer diameter of the upper discharge turbine 26 is larger than that of the lower discharge turbine 27. Both the upper discharge turbine 26 and the lower discharge turbine 27 include a turbine plate 28. A certain number of discharge turbine fins 29 are distributed obliquely along the circumference of the turbine plate 28, and a mounting hole 30 is opened in the middle. The discharge turbine fins 29 of the upper discharge turbine 26 and the lower discharge turbine 27 are obliquely directed in opposite directions. When the upper discharge turbine 26 and the lower discharge turbine 27 are installed, the corresponding discharge turbine fins 29 are relatively distributed up and down. The upper discharge turbine 26 and the lower discharge turbine 27 have a conical structure as a whole. The centrifugal force generated by the diameter change gradually increases, which is beneficial to the separation of the grinding beads and the material, and can effectively reduce the occurrence of the bead running phenomenon.

[0030] like Figure 6 and Figure 7 As shown, the grinding assembly includes multiple grinding chamber turbines 37 and a bottom grinding chamber turbine 31. The grinding chamber turbines 37 and the bottom grinding chamber turbine 31 both include a grinding chamber turbine plate 32. A connecting hole 33 is opened in the middle of the grinding chamber turbine plate 32. A certain number of grinding blocks 34 are evenly and obliquely distributed along the circumference on one side of the grinding chamber turbine plate 32. A through hole 35 is opened between adjacent grinding blocks 34. A conical cover 36 is installed on the other side of the grinding chamber turbine plate 32 of the bottom grinding chamber turbine 31. The middle part of the conical cover 36 is connected to the bottom of the main shaft 1 by screws. The grinding chamber turbine 37 is divided into The grinding chamber turbines 37 of each group are installed facing each other, and the grinding blocks 34 are tilted in opposite directions. The bottom grinding chamber turbines 31 and the grinding chamber turbines 37 are installed facing each other and fixed to the bottom of the main shaft 1; the grinding chamber turbines 37 and the bottom grinding chamber turbines 31 are stacked in two pieces. When the turbines rotate, the centrifugal force forms a low-pressure area in the turbine cavity, and a number of evenly distributed through holes 35 are opened on the grinding chamber turbine plate 32, where a contraction flow is formed, which enhances the collision force between the material and the grinding medium and accelerates grinding and circulation.

[0031] When the grinding device is used, the solid-liquid mixture subjected to pre-dispersion wet treatment is input into the inside of the conical inner cylinder 10 through the material pump from the bottom inlet 23 of the vertical sand mill. The external driving device drives the main shaft 1 to rotate, and the main shaft 1 drives the discharge turbine assembly, the dispersion disc 16 and the grinding assembly to rotate at high speed to generate centrifugal kinetic energy and grinding force. The material and the grinding medium (i.e. zirconium beads) in the conical inner cylinder 10 are stirred by the high-speed rotating grinding assembly. When the turbine of the grinding assembly rotates, the centrifugal force causes the low-pressure area in the inner cavity of the turbine. The grinding cavity turbine 37 and the bottom grinding cavity turbine 31 are uniformly distributed with through holes 35, and the contraction flow is formed here to enhance the collision force of the material and the grinding medium. The solid particles and the grinding medium produce strong collision, friction, shearing, emulsification, dispersion and kneading effect, so as to accelerate the grinding of the fine particles and the dispersion of the agglomerates. The conical structure of the whole discharge turbine assembly produces a downward thrust on the grinding medium, and the grinding medium is accumulated downward. At the same time, the turbine groups of several grinding assemblies in the lower segment push the grinding medium upward, and high-density grinding medium accumulation is generated at the turbine group of the first grinding assembly. The large particles of the material cannot escape and are fully ground by the turbine group, and the particle size is gradually and uniformly refined. The uniformly distributed particles come to the discharge turbine assembly under the pressure action of the circulating pump. The upper discharge turbine 26 and the lower discharge turbine 27 have a conical variable-diameter structure, so that the centrifugal force gradually increases, which is beneficial to the separation of the grinding beads and the material, and can effectively reduce the occurrence of the running bead phenomenon. The separated material enters the discharge channel 12 through the material hole 11, is transported from the discharge channel 12 to the discharge port 14, and is discharged to the stirring cylinder. The material in the cylinder is returned to the conical inner cylinder 10 again by the pump, and the cycle continues until the use requirement is met.

[0032] Finally, it should be pointed out that the above description is only the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application should be included in the protection scope of the present application.

Claims

1. A conical vertical wet grinding apparatus comprising a main shaft, characterized in that: The upper end of the main shaft is connected to the upper machine seal connecting frame through a bearing, and an installation cavity is provided on the inner side of the upper machine seal connecting frame, a pulley is provided inside the installation cavity, and a connecting port is opened on the side of the installation cavity, and the pulley is installed on the main shaft, and the bottom of the upper machine seal connecting frame is connected to the bearing box, and the bottom of the bearing box is connected to the lower machine seal, and the bottom of the lower machine seal is connected to the machine seal ceramic plate, and the lower end of the machine seal ceramic plate is connected to the outer cylinder, and a conical inner cylinder is installed inside the outer cylinder, and the lower end of the main shaft extends into the conical inner cylinder. The conical inner cylinder is provided with a discharge turbine assembly, the lower end of the conical inner cylinder is a straight cylinder, the upper end is a cone with a larger upper end and a smaller lower end, and the discharge turbine assembly is provided at the upper end of the conical inner cylinder, the discharge turbine assembly is installed on the main shaft, the main shaft is provided with a feed hole, the feed hole corresponds to the position of the discharge turbine assembly, the upper section of the main shaft is provided with a discharge channel, the bottom of the discharge channel is connected to the feed hole, the top end of the main shaft is covered with a protective cover, a discharge port is provided on the protective cover, and the bottom of the protective cover is connected to a machine seal The discharging opening that stirs cage connects with the delivery chute charging aperture, and the delivery chute discharging opening is erected at bin top, bin be arranged on the supporting tractor of the present invention on the supporting tractor, and the delivery chute discharging opening is erected at bin top, bin be arranged on the supporting tractor of the present invention on the supporting tractor.

2. The conical vertical wet grinding equipment according to claim 1, characterized in that: A feeding cavity is provided at the bottom of the bearing box, an opening is provided on the feeding cavity, a grinding medium feeding hole is provided on the mechanical seal ceramic plate, and the grinding medium feeding hole is communicated with the interior of the conical inner cylinder.

3. The conical vertical wet grinding equipment according to claim 1, characterized in that: The upper and lower surfaces of the dispersion disk are both provided with water drop-shaped grooves, and a plurality of the grooves are evenly distributed along the circumference of the dispersion disk.

4. The conical vertical wet grinding equipment according to claim 1, characterized in that: The grinding assembly includes multiple grinding chamber turbines and a bottom grinding chamber turbine. The grinding chamber turbines and the bottom grinding chamber turbine both include a grinding chamber turbine plate. A connecting hole is opened in the middle of the grinding chamber turbine plate. A certain number of grinding blocks are evenly and obliquely distributed along the circumference on one side of the grinding chamber turbine plate, and through holes are opened between adjacent grinding blocks. A conical cover is installed on the other side of the grinding chamber turbine plate of the bottom grinding chamber turbine, and the middle of the conical cover is connected to the bottom of the main shaft by screws.

5. The conical vertical wet grinding equipment according to claim 4, characterized in that: The grinding chamber turbines are divided into multiple groups, with grinding turbine spacers installed between adjacent groups. The grinding chamber turbines in each group are installed facing each other, and the bottom grinding chamber turbines are fixed to the bottom of the main shaft after being installed facing each other.

6. The conical vertical wet grinding equipment according to claim 5, characterized in that: A discharge turbine spacer is installed between the dispersing disc and the discharge turbine assembly, and a grinding turbine spacer is installed between the dispersing disc and the grinding assembly.

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