Pin turbine and grinding device

Abstract

The present invention is applicable to the technical field of material grinding. The present invention discloses a rod pin turbine and a grinding device, wherein the rod pin turbine includes a dispersing component that is hollow in the axial direction, a plurality of radial holes are evenly arranged along the radial direction of the dispersing component, a groove is arranged between two adjacent radial holes, and axial holes consistent with the direction of the rotating shaft are arranged on both sides of the groove and / or radial hole, and two rod pin groups are radially arranged on the upper and lower radial sides of the disperser, and the two rod pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating. During grinding, the dispersing component rotates at a high speed, and the material and the grinding balls enter the radial holes or grooves through the axial holes to be accelerated, and move along the diameter direction. The rod pins guide the accelerated material and grinding balls to increase the area of ​​the grinding acceleration zone and improve the grinding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of grinding equipment, and in particular to a pin turbine and a grinding device. Background Art

[0002] The existing wet grinding device grinds the materials through a disperser, and then separates the ground materials through a separator. The separator and the disperser are two independent mechanisms, usually driven by two independent driving devices. However, grinding balls easily gather on the surface of the separator, which affects the efficiency of grinding and separation. At the same time, the grinding balls contact the separator, which affects the service life of the separator. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a pin turbine and a grinding device, wherein the pin turbine can improve the grinding efficiency and the separation efficiency.

[0004] In order to solve the above problems, the present invention provides a pin turbine. The pin turbine comprises a dispersing component which is hollow in the axial direction, a plurality of radial holes are evenly arranged along the radial direction of the dispersing component, a groove is arranged between two adjacent radial holes, axial holes which are consistent with the direction of the rotating shaft are arranged on both sides of the groove and / or radial hole, two pin groups are radially arranged on the upper and lower radial sides of the disperser respectively, and the two pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating.

[0005] Preferably, each rod pin group includes a plurality of rod pins that are evenly distributed, and the rod pins are spaced apart between the radial holes and the grooves and the radial holes, and a gap is provided between each of the rod pins.

[0006] Preferably, a separation component is provided in the hollow of the dispersion component, and an axially closed separation chamber is formed between the radial outer side of the separation component and the dispersion component, and the separation chamber is respectively communicated with the radial hole and the separation gap on the separation component.

[0007] Preferably, the radial holes and / or grooves are in the shape of arcs that are curved in opposite directions of rotation.

[0008] Preferably, the rod pin is in the shape of an inverted ladder.

[0009] The present invention also provides a grinding device, which includes at least one rod pin turbine fixed on a rotating shaft, and the rod pin turbine includes an axially hollow dispersion component, a plurality of radial holes are evenly arranged along the radial direction of the dispersion component, a groove is provided between two adjacent radial holes, and axial holes consistent with the direction of the rotating shaft are provided on both sides of the groove and / or the radial hole, and two rod pin groups are evenly arranged radially on the upper and lower radial sides of the disperser, and the two rod pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating.

[0010] Preferably, when there are two or more pin turbines, an annular grinding inertia buffer area is formed between two adjacent pin turbines.

[0011] Preferably, each rod pin group includes a plurality of rod pins that are evenly distributed, and the rod pins are spaced apart between the radial holes and the grooves and the radial holes, and a gap is provided between each of the rod pins.

[0012] Preferably, a separation component is fixed in the hollow position of the dispersion component, and the middle part of the outer side of the separation component forms an axially closed separation cavity with the inner side of the dispersion component and radially connected with the radial hole and the separation channel provided in the separation component.

[0013] Preferably, the radial holes and / or grooves are in the shape of arcs that are curved in opposite directions of rotation.

[0014] Preferably, the rod pin is in the shape of an inverted ladder.

[0015] The pin turbine of the present invention comprises a dispersing component which is hollow in the axial direction, a plurality of radial holes are evenly arranged along the radial direction of the dispersing component, a groove is arranged between two adjacent radial holes, and axial holes are arranged on both sides of the groove and / or radial hole in the same direction as the rotating shaft, and two pin groups are arranged radially on the upper and lower radial sides of the dispersing device, respectively, and the two pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating. During grinding, the dispersing component rotates at a high speed, and the material and the grinding ball enter the radial hole or the groove through the axial hole for acceleration, and move along the diameter direction, and the pin guides the accelerated material and the grinding ball, increases the area of ​​the grinding acceleration zone, and improves the grinding efficiency. When axial holes are arranged on both sides of the radial hole, firstly, the material and the grinding ball enter the radial hole for acceleration; secondly, the material and the grinding ball mixture enter the radial hole through the action of centrifugal force, and under the action of centrifugal force, the material with a smaller diameter is much smaller than the grinding ball, so that the grinding ball accelerates outward along the radial hole, and the material with a smaller diameter enters the axial hollow of the dispersing component, so that the material and the grinding ball are separated. When the dispersion component is axially hollow and provided with a separation component, and an axially closed separation chamber is present between the separation component and the disperser, the material is classified after entering the separation chamber, so that the material with a larger diameter is kept away from the surface of the separation component, that is, when a grinding ball enters the separation chamber, the grinding ball cannot move in the axial direction, thus avoiding contact with the surface of the separation component, thereby increasing the service life of the separation component, and also avoiding affecting the separation efficiency when the grinding ball is too close to the surface of the separation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the description are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a pin turbine embodiment of the present invention.

[0018] Figure 2 It is a schematic cross-sectional view along the rotation axis direction of another embodiment of a pin turbine.

[0019] Figure 3 It is a schematic structural diagram of a grinding device embodiment.

[0020] Figure 4 It is a schematic diagram of the internal structure of a grinding device embodiment.

[0021] Figure 5 It is a schematic diagram of the axial cross-sectional structure of an embodiment of a grinding device.

[0022] The following is a further description of the implementation, functional features and advantages of the present invention with reference to the embodiments and accompanying drawings.

[0023] The function of the rod pin is to guide the accelerated material and grinding balls during grinding, increase the grinding area, and improve the grinding efficiency. The axial holes on both sides of the radial hole have two functions. One is to accelerate the material and grinding balls into the radial hole; the other is to use the centrifugal force to push the material and grinding ball mixture into the radial hole. Under the action of centrifugal force, the material with a smaller diameter is much smaller than the mass of the grinding ball. At the same speed, the centrifugal force of the grinding ball is greater than that of the material with a smaller diameter, so that the grinding ball accelerates outward along the radial hole, and the material with a smaller diameter enters the separation chamber under the negative pressure generated in the separation chamber and the separator, thereby separating the material from the grinding ball.

[0024] The separation chamber is a closed structure in the axial direction, so the material entering the separation chamber is classified under the action of centrifugal force. Even if grinding balls enter the separation chamber, they will not contact the surface of the separation component, thereby increasing the life of the separation component and not clogging the separation component, thereby improving the separation efficiency. DETAILED DESCRIPTION

[0025] The present invention quickly sucks the material into the cylinder through the separator, forces it to move under the action of the flow-breaking ring, and then sucks the material on the top through the disperser for cyclic grinding, so that the material around the inner separator is distributed with increasingly larger diameters from the inside to the outside, with smaller diameters distributed around the separator and larger diameters away from the separator. Smaller materials are easily separated, avoiding discharge blockage.

[0026] like Figure 1 As shown, the present invention provides an embodiment of a pin turbine.

[0027] The pin turbine comprises an axially hollow dispersion component 1, a plurality of radial holes 10 are evenly arranged along the radial direction of the dispersion component, a groove 13 is arranged between two adjacent radial holes 10, axial holes consistent with the direction of the rotating shaft are arranged on both sides of the groove 13 and / or the radial holes 10, two pin groups are radially arranged on the upper and lower radial sides of the disperser 1, and the two pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating.

[0028] Specifically, the pin turbine comprises a dispersing component 1 which is hollow in the axial direction, that is, a hollow portion 19 is provided in the central axial direction of the dispersing component 1. A plurality of radial holes 10 are evenly provided along the radial direction of the dispersing component 1, a groove 13 is provided between two adjacent radial holes 10, a first axial hole 11 and a second axial hole 18 which are consistent with the direction of the rotating shaft are provided on both sides of the groove 18 and the radial hole 10, and two pin groups are radially provided on the upper and lower radial sides of the disperser 1, respectively, and the two pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating.

[0029] The first axial hole 11 is provided on both sides of the radial hole 10 and communicates with the radial hole 10, and the second axial hole 18 is provided on both sides of the groove 18 and communicates with the groove 18. The two rod pin groups include a first rod pin group and a second rod pin group. The first rod pin group includes a plurality of evenly distributed first rod pins 15, and a first notch 14 is provided between two adjacent first rod pins; the second rod pin group has the same structure as the first rod pin group, that is, includes a plurality of evenly distributed second rod pins 16, and a second notch 17 is provided between two adjacent second rod pins. Each rod pin on the first rod pin group and the second rod pin group is symmetrical with the central plane perpendicular to the thickness direction of the dispersion component 1 as the symmetry axis, each first rod pin 15 is respectively located between the radial hole 10, the groove 13 and the radial hole 10 at intervals, and each second rod pin 17 is respectively located between the radial hole 10, the groove 13 and the radial hole 10 at intervals.

[0030] The radial holes 10 are through holes in the radial direction of the dispersion component 1 , that is, the radial holes 10 are connected to the outside of the dispersion component 1 and the axial hollow portion 19 in the radial direction.

[0031] When in use, the dispersing component 1 rotates at a high speed, and the material and the grinding balls enter the radial hole 10 through the first axial hole 11 for acceleration and pass through the second axial hole 18 in the groove 13 for acceleration, and move in the diameter direction. After the material and the grinding balls leave the groove 13 and the radial hole 10, the first rod pin 16 and the second rod pin 16 guide the accelerated material and grinding balls, thereby increasing the area of ​​the grinding acceleration zone and improving the grinding efficiency.

[0032] When axial holes 11 are provided on both sides of the radial hole 10, the material and the grinding balls can enter the radial hole 10 for acceleration; at the same time, after the mixture of the material and the grinding balls enters the radial hole 10 through the action of centrifugal force, under the action of centrifugal force, the material with a smaller diameter is much smaller than the grinding balls, so the grinding balls are accelerated outward along the radial hole, while the material with a smaller diameter enters the axial hollow portion 19 of the dispersion component 1, thereby realizing the separation of the material and the grinding balls.

[0033] In this embodiment, the first rod pin and the second rod pin are in the shape of an inverted ladder. Each rod pin group includes a plurality of rod pins evenly distributed, and the first rod pin 15 and the second rod pin 16 are respectively spaced between the radial hole 10 and the groove 13 and the radial hole 10, which can better guide the accelerated grinding balls and materials, even if the grinding balls and materials can move radially farther.

[0034] In the above embodiment, the radial holes 10 and the grooves 13 are respectively provided with axial holes. Alternatively, only axial holes communicating with the radial holes 10 or the grooves 13 may be provided on both sides thereof as required, so that the material and the grinding balls can be accelerated and separated. The radial holes and / or the grooves are arc-shaped and curved in the opposite direction of rotation. The radial holes 10 and the grooves 13 are preferably arranged in arc-shaped and curved in the opposite direction of rotation, so that the material and the grinding balls can be more easily moved away from the radial direction, thereby increasing the grinding area.

[0035] like Figure 2 As shown, a separation component 2 may be provided in the axial hollow portion 19 of the dispersion component 1, and an axially closed separation chamber 12 is formed between the radial outer side of the separation component 2 and the dispersion component 1, and the separation chamber 12 is respectively connected with the radial hole 10 and the separation gap on the separation component 2. The separation component 2 is implemented by an existing structure, such as a stacked separation ring, and a through hole is provided at the center of the separation ring, and the through hole of each stacked separation ring forms a separation channel.

[0036] When the dispersion component is axially hollow and provided with a separation component, and an axially closed separation chamber is present between the separation component and the disperser, the material is classified after entering the separation chamber, so that the material with a larger diameter is kept away from the surface of the separation component, that is, when a grinding ball enters the separation chamber, the grinding ball cannot move in the axial direction, thus avoiding contact with the surface of the separation component, thereby increasing the service life of the separation component, and also avoiding affecting the separation efficiency when the grinding ball is too close to the surface of the separation component.

[0037] like Figure 3 and Figure 4As shown, the present invention also provides a grinding device, which includes at least one pin turbine 1 fixed on a rotating shaft, and the pin turbine 1 includes an axially hollow dispersion component 1, and a plurality of radial holes 10 are evenly arranged along the radial direction of the dispersion component 1, and a groove 13 is provided between two adjacent radial holes 10, and axial holes consistent with the direction of the rotating shaft are provided on both sides of the groove 13 and / or the radial holes 10, and two pin groups are evenly arranged radially on the upper and lower radial sides of the disperser, and the two pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating.

[0038] Specifically, the grinding device includes a grinding cylinder 3 with a grinding chamber, a front cover 7 and a rear cover 4 are respectively provided on both sides of the grinding cylinder 3, one, two or more pin turbines 1 are provided in the grinding cylinder 3, each pin turbine 1 is respectively fixed to the hollow rotating shaft 6, and a material separation channel is formed by the radial hole 10 and the separation chamber 12 and the separator and the central hole 61 of the rotating shaft.

[0039] The front cover 7 is provided with a material feed port G, and the rear cover 4 is provided with a grinding ball feed port C and a grinding ball discharge port D. In order to reduce the heat generated during grinding, a cooling cavity 5 is provided on the grinding cylinder 3 and the rear cover 4, wherein the grinding cylinder 3 is provided with a cooling water inlet F and a cooling water outlet E, and the rear cover is provided with a cooling water inlet and outlet I.

[0040] The pin turbine 1 adopts the above-mentioned embodiment, that is, the pin turbine 1 includes an axially hollow dispersion component 1, a plurality of radial holes 10 are evenly arranged along the radial direction of the dispersion component 1, a groove 13 is provided between two adjacent radial holes 10, and a first axial hole 11 and a second axial hole 18 which are consistent with the direction of the rotation axis are respectively provided on both sides of the groove 18 and the radial hole 10, and two pin groups are radially arranged on the upper and lower radial sides of the disperser 1, and the two pin groups form an annular grinding acceleration zone A in the middle of the radial side when rotating.

[0041] When there are two or more pin turbines 1 , an annular grinding inertia buffer area B is formed between two adjacent pin turbines 1 .

[0042] The pin turbine 1 also includes a separation component 2 fixed in the hollow position of the dispersion component. The middle part of the outer side of the separation component 2 is axially closed with the inner side of the dispersion component 1, and the separation chamber 12 is radially connected with the radial hole 10 and the separation channel set in the separation component 2.

[0043] When the dispersion component 1 is axially hollow and provided with a separation component 2, and an axially closed separation chamber exists between the separation component 2 and the dispersion component 1, after the material enters the separation chamber, it is classified under the action of centrifugal force, so that the material with a larger diameter is kept away from the surface of the separation component, that is, when a grinding ball enters the separation chamber, the grinding ball cannot move in the axial direction, which can prevent the grinding ball or the material with a larger diameter from contacting with the surface of the separation component, thereby increasing the service life of the separation component and also preventing the grinding ball or the material with a larger diameter from clogging the separation component 2, thereby improving the separation efficiency.

[0044] When the grinding device is working, the rotating shaft drives the pin turbine 1 to rotate at a high speed, and the material and the grinding ball are sucked into the radial hole 10 and the groove 13 through the first axial hole 11 and the second axial hole 18, and leave the pin turbine 1 after acceleration. Under the action of the two pin groups, the material and the grinding ball are guided to move to a place farther from the pin turbine 1 or the dispersion component 1 in the radial direction, thereby increasing the grinding acceleration area and improving the grinding efficiency. At the same time, when there are two or more pin turbines 1, there is a grinding inertia buffer area B between the two adjacent pin turbines 1. The kinetic energy of the material and the grinding ball in this area is small. Under the action of the first axial hole and the second axial hole, the material and the grinding ball are sucked into the pin turbine 1 and continuously accelerated. When the material is ground to a certain size, after being sucked into the radial hole 10 of the dispersion component 1, the material is separated from the grinding ball, so that the material enters the separation chamber between the dispersion component 1 and the separation component 2, and then discharged through the dispersion component 2 and the shaft center hole 61 on the rotating shaft 6.

[0045] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pin turbine, comprising a dispersed component which is hollow in the axial direction, a plurality of radial holes are evenly arranged along the radial direction of the dispersed component, and a groove is arranged between two adjacent radial holes, characterized in that: The first axial hole is arranged on both sides of the radial hole and is connected with the radial hole, the second axial hole is arranged on both sides of the groove and is connected with the groove, two rod pin groups are radially arranged on the upper and lower radial sides of the dispersion component respectively, the two rod pin groups include a first rod pin group and a second rod pin group, the first rod pin group includes a plurality of evenly distributed first rod pins, a first notch is arranged between two adjacent first rod pins; the second rod pin group includes a plurality of evenly distributed second rod pins, a second notch is arranged between two adjacent second rod pins, a gap formed axially between a first rod pin and a corresponding second rod pin is located between the groove and the radial hole, a gap formed by another first rod pin and a corresponding second rod pin located on both sides of the radial hole is connected with the radial hole, the two gaps are connected in the circumferential direction, and the two rod pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating.

2. The pin turbine according to claim 1, characterized in that: A separation component is arranged in the hollow of the dispersion component, and an axially closed separation chamber is formed between the radial outer side of the separation component and the dispersion component. The separation chamber is communicated with the radial hole and the separation gap on the separation component respectively.

3. The pin turbine according to claim 1, characterized in that: The radial holes and / or grooves are in the shape of arcs that are curved in the opposite direction of rotation.

4. The pin turbine according to claim 1, characterized in that: The rod pin is in the shape of an inverted ladder.

5. A grinding device, characterized in that: The invention comprises at least one pin turbine fixed on a rotating shaft, the pin turbine comprises a dispersing component which is hollow in the axial direction, a plurality of radial holes are evenly arranged in the radial direction of the dispersing component, a groove is arranged between two adjacent radial holes, a first axial hole is arranged on both sides of the radial hole and is communicated with the radial hole, a second axial hole is arranged on both sides of the groove and is communicated with the groove, two pin groups are radially arranged on the upper and lower radial sides of the dispersing component respectively, the two pin groups comprise a first pin group and a second pin group, the first pin group comprises a plurality of evenly distributed first pins, a first notch is arranged between two adjacent first pins; the second pin group comprises a plurality of evenly distributed second pins, a second notch is arranged between two adjacent second pins, a gap formed axially between a first pin and a corresponding second pin is located between the groove and the radial hole, a gap formed between another first pin located on both sides of the radial hole and the corresponding second pin is communicated with the radial hole, the two gaps are communicated in the circumferential direction, and the two pin groups form an annular grinding acceleration zone in the middle of the radial side when rotating.

6. The grinding device according to claim 5, characterized in that: When there are two or more pin turbines, an annular grinding inertia buffer area is formed between two adjacent pin turbines.

7. The grinding device according to claim 5, characterized in that: A separation component is arranged in the hollow of the dispersion component, and an axially closed separation chamber is formed between the radial outer side of the separation component and the dispersion component. The separation chamber is communicated with the radial hole and the separation gap on the separation component respectively.

8. The grinding device according to claim 5, characterized in that: The radial holes and / or grooves are in the shape of arcs that are curved in the opposite direction of rotation.

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