CN211612938U

CN211612938U - Separator of grinding machine and grinding machine

Info

Publication number: CN211612938U
Application number: CN201921848534.4U
Authority: CN
Inventors: 唐志鹏; 李俊斌
Original assignee: Xi'an Zhongli Asphalt Co ltd
Current assignee: Xi'an Zhongli Asphalt Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-10-02
Anticipated expiration: 2029-10-30

Abstract

The application discloses a separating device of a grinding machine and the grinding machine, which comprise a first pressing plate, a second pressing plate and a plurality of screen bars, wherein two ends of each screen bar are respectively connected with the first pressing plate and the second pressing plate; in the direction in which the first platen points towards the second platen, the gap between two adjacent screen bars forms a screening area. The application discloses separator and grinding machine of grinding machine can reduce the hourglass pearl condition.

Description

Separator of grinding machine and grinding machine

Technical Field

The application relates to a material grinding device, in particular to a separating device of a grinding machine and the grinding machine.

Background

In the preparation of natural asphalt, the mainstream production process is to fill grinding media in a grinding cylinder, and filter the ground materials through a separation device after the materials and the slurry formed by the grinding media are continuously stirred and ground. As shown in fig. 1 and 2, the current screen structure is that a plurality of connecting columns 6 ' are arranged between a left platen 1 ' and a right platen 2 ', the connecting columns 6 ' surround a plurality of circumferential annular screen bars 3 ', and a circumferentially distributed screening area 4 ' is formed by gaps between adjacent annular screen bars 3 '. The grinding medium is easy to discharge from the separation device with the structure along with the ground material, and a more serious bead leakage phenomenon exists.

Disclosure of Invention

In view of the above, it is desirable to provide a separation device of a grinder and a grinder to solve the problem that grinding media are easily discharged from the separation device.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

the separating device of the grinding machine comprises a first pressure plate, a second pressure plate and a plurality of screen bars, wherein two ends of the screen bars are respectively connected with the first pressure plate and the second pressure plate, and the plurality of screen bars are annularly distributed between the first pressure plate and the second pressure plate; and in the direction of pointing the first pressure plate to the second pressure plate, a screening area is formed by the gap between every two adjacent screen bars.

Further, the separating device further comprises a connecting ring, the connecting ring is arranged on the inner side of the plurality of screen bars, and the plurality of screen bars are connected with the connecting ring along the circumferential direction of the connecting ring.

Further, the connecting ring is welded or connected with the first end of the inner side of the screen bar.

Further, the connection ring comprises a first connection portion, the screen band comprises a second connection portion, the second connection portion is arranged at a first end of the inner side of the screen band, and the first connection portion is detachably connected with the second connection portion.

Furthermore, one of the first connecting portion and the second connecting portion is a clamping groove, and the other is a clamping block.

Further, separator still includes the discharge gate, the discharge gate sets up first pressure disk or on the second pressure disk to communicate with by a plurality of the region that the screen band encircles.

Further, the first pressing plate comprises first positioning grooves matched with the screen bars, and the first positioning grooves are distributed on the plate surface of the first pressing plate facing the second pressing plate along the shape of a ring; and/or the second pressure plate comprises a second positioning groove matched with the screen bars, and the second positioning groove is distributed on the surface of the second pressure plate facing the first pressure plate along the ring shape.

Further, the separating apparatus includes a fastener connecting the first pressure plate and the second pressure plate to connect the screen bars between the first pressure plate and the second pressure plate.

Furthermore, the cross section of each screen bar is T-shaped or triangular, the second ends of the screen bars with larger width are arranged outwards, and the gaps between the second ends of the adjacent screen bars form the screening area.

A grinding machine comprises a grinding cylinder and the separating device, wherein the separating device is arranged in the grinding cylinder.

The utility model provides a separator and machine of grinding machine, distribute between first pressure disk and second pressure disk along the annular through setting up a plurality of screen bars, the clearance between two adjacent screen bars forms the screening region along the direction of the directional second pressure disk of first pressure disk, thereby make the axial of main shaft along the distribution direction of screening region, inconsistent with the direction of motion of thick liquids, the grinding medium who goes into the screening region of axial distribution is taken out under the rotatory effect of thick liquids circumference, thereby reduce and leak the pearl.

Drawings

FIG. 1 is a schematic diagram of a separation apparatus of the prior art;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic view of a separating apparatus of a grinding mill according to an embodiment of the present application;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

FIG. 5 is a partial schematic view of a screen bar coupled to a connector ring according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a first platen according to an embodiment of the present application.

Detailed Description

It should be noted that, in the case of conflict, the technical features in the examples and examples of the present application may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the present application and should not be construed as an improper limitation of the present application.

In the description of the embodiments of the present application, the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, it is to be understood that these orientation terms are merely for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present application.

In the description of the embodiments of the present application, "inner side" refers to a side of a cylinder formed by a plurality of screen bars annularly surrounding the center, and "outer side" refers to a side of a cylinder formed by a plurality of screen bars annularly surrounding the center.

A general grinding mill comprises a grinding cylinder with an outlet, a stirring device and a separating device, wherein the separating device is arranged in the grinding cylinder and communicated with the outlet, the stirring device is used for stirring grinding media and materials in the grinding cylinder to grind the materials, and the separating device is used for separating the materials to be discharged from the outlet.

In prior art separating devices, as shown in fig. 1 and 2, the gaps between adjacent annular screen bars 3 'of the separating device form circumferentially distributed screening zones 4'. In practical production, because the axial direction of the main shaft of the stirring device is along the direction that the left pressure plate 1 'points to the right pressure plate 2', slurry formed by grinding media and materials is driven by the main shaft, rotates along the circumferential direction of the main shaft in the grinding cylinder, and enters the inside of the separation device from the outside of the separation device through the screening area 4 'along the radial direction, the distribution direction of the screening area 4' is consistent with the moving direction of the slurry, once the grinding media are clamped in the screening area 4 'between the annular screen bars 3', the grinding media also move along the circumferential pores under the action of the circumferential rotation, and if a certain part of the screening area 4 'can leak out, the clamped grinding media can always leak out from the position no matter where the grinding media are clamped in the screening area 4' of the same circle, so that the phenomenon of bead leakage is serious.

As shown in fig. 3 to 6, the separation device in the embodiment of the present application includes a first pressure plate 1, a second pressure plate 2, and a plurality of screen bars 3, two ends of each screen bar 3 are respectively connected with the first pressure plate 1 and the second pressure plate 2, the connection manner may be welding, bolting, or clamping, the plurality of screen bars 3 are annularly distributed between the first pressure plate 1 and the second pressure plate 2, a direction along the first pressure plate 1 toward the second pressure plate 2 is provided, a screening area 4 is formed by a gap between two adjacent screen bars 3, a ground material radially enters from an outer side of the separation device through the screening area 4 to an inner side, and a mixed grinding medium is blocked by the screen bars 3 to the outer side, so as to achieve separation of the material and the grinding medium; by arranging the screen bars 3 between the first platen 1 and the second platen 2, the distribution direction of the screening areas 4 is distributed along the axial direction of the main shaft, namely along the direction of the first platen 1 towards the second platen 2; the motion direction of the material is still in circumferential motion under the driving of the main shaft, so that the distribution direction of the screening area is inconsistent with the motion direction of the slurry, and the grinding media clamped into the axially distributed screening area can be taken out under the circumferential rotation action of the slurry, so that bead leakage is avoided.

In a possible embodiment, as shown in fig. 3 to 6, the separation device further includes a connection ring 6 for dividing the screening area 4, so that the screening area 4 is divided into several sections along the axial direction, each section of the screening area 4 can separately screen the material and improve the rigidity between the screen bars 3 and prevent deformation, the connection ring 6 is arranged on the inner side of the screen bars 3, and the screen bars 3 are connected with the connection ring (6) along the circumferential direction of the connection ring 6, so as to avoid being directly worn by the slurry and the grinding media arranged on the outer side, and improve the service life.

The connection of the connection rings 6 to the screen bars 3 may be implemented in various ways.

The connecting ring 6 may be welded to the first end 32 of the inner side of the screen band 3; firm in connection and rigidity are good.

As shown in fig. 5, the connection ring 6 comprises a first connection portion 61, the screen band 3 comprises a second connection portion 31, the second connection portion 31 is arranged at the first end 32 inside the screen band 3, and the first connection portion 61 is detachably connected with the second connection portion 31, so that the screen band 4 can be conveniently detached and maintained with the grinding media clamped; one of the first connecting portion 61 and the second connecting portion 31 is a locking groove, and the other is a locking block, so that the connecting ring 6 can be connected with the locking groove of the first end 32 at the inner side of the screen band 3, and the connection is ensured to be firm.

In a possible embodiment, as shown in fig. 3 to 6, the separating device further comprises a discharge port 5, the discharge port 5 is arranged on the first platen 1 or the second platen 2, and the discharge port 5 is communicated with the area surrounded by the plurality of screen bars 3, i.e. the ground material in the grinding cylinder radially flows from the outside of the separating device through the screening area 4 to the inside and flows out from the discharge port 5 through the outlet of the grinding cylinder, so that the production and processing can be realized at the same time, and the processing efficiency is high.

In a possible embodiment, as shown in fig. 4 and 6, the first pressure plate 1 includes first positioning grooves 11 adapted to the screen bars 3, the first positioning grooves 11 are distributed on the surface of the first pressure plate 1 facing the second pressure plate 2 along an annular shape, so as to facilitate the positioning of one end of the screen bars 3 with the first pressure plate 1, thereby realizing the assembly of the separating device, and in addition, the first positioning grooves 11 are adapted to the end portions of the screen bars 3, i.e., have appropriate shapes and sizes, which can be understood as no gap or small gap, and can effectively prevent the grinding medium from leaking out along the connection between the screen bars 3 and the first pressure plate 1.

Similarly, second pressure disk 2 also can include the second constant head tank (not marked) with 3 looks adaptations of grating, and the second constant head tank distributes on second pressure disk 2 faces the quotation of first pressure disk 1 along the annular, makes things convenient for separator's assembly, and the second constant head tank is fit with the tip looks adaptation of grating 3 shape size promptly, can understand that seamless or gap are very little, can effectually prevent that grinding medium from spilling along the junction of grating 3 with second pressure disk 2. In a possible embodiment, as shown in fig. 3, 4 and 6, the separating device further includes a fastening member 9, the fastening member 9 connects the first pressure plate 1 and the second pressure plate 2 to connect the screen bars 3 between the first pressure plate 1 and the second pressure plate 2, the fastening member 9 may be in threaded connection or clamped connection with the first pressure plate 1 and the fastening member 9 and the second pressure plate 2, taking the threaded connection as an example, the fastening member 9 is a rod member, a threaded hole (not labeled) may be provided at an end of the fastening member 9, through holes 91 are correspondingly provided on the first pressure plate 1 and the second pressure plate 2, and the bolt 92 passes through the through hole 91 and then is fastened with the threaded hole at the end of the fastening member 9, so that the fastening member 9 is connected with the first pressure plate 1 and the fastening member 9 is connected with the second pressure plate 2 in a bolt manner.

In a possible embodiment, the cross section of the screen bars 3 is generally rectangular, the clearance formed by the two mutually facing side surfaces of two adjacent screen bars 3 is the screening area 4, and the thickness of the material which can pass through the screening area 4 can be controlled by controlling the size of the clearance.

In a possible embodiment, as shown in fig. 3 to 6, the cross section of the screen bars 3 is T-shaped or triangular, the first ends 32 with smaller width are annularly arranged towards the inside, the gaps between the second ends 33 of adjacent screen bars 3 form the screening area 4, and the gaps between the first ends 32 of adjacent screen bars 3 form the bulk material area 7 with larger width, so that the material can pass quickly to avoid the material accumulation and jamming; the second ends 33 of the plurality of screen bars 3 with larger width are annularly arranged towards the outer side along the radial direction, so that a gap with proper width is formed to separate the materials and the grinding media, in addition, because the abrasion needs to be considered, if the screen bars 3 adopt a triangle shape, the thickness of the screening area 4 from the outer side to the inner side is thinner, the width leakage beads of the screening area 4 need to be checked in time, if the screen bars 3 are arranged to adopt a T shape, namely, the screening area 4 protrudes outwards from two sides of the top of the triangle with the same thickness, so that the thickness of the screening area 4 from the outer side to the inner side is ensured, and the service life of the.

A grinding mill of the embodiment of this application includes grinding vessel and any one of the above-mentioned embodiments of separator, separator sets up in the grinding vessel.

Specifically, the grinding machine comprises a main shaft, a stirrer arranged on the main shaft and a driving source for driving the main shaft, an outlet is formed in the grinding cylinder, the separating device is communicated with the outlet, the driving source drives the main shaft to drive the stirrer to rotate, the grinding medium in the grinding cylinder is pushed to move with the material so as to grind the material, and the material after being ground is separated by the separating device and is discharged from the outlet.

The various embodiments/implementations provided herein may be combined with each other without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A separator for a grinding mill, characterized in that: the screen bar pressing device comprises a first pressing plate (1), a second pressing plate (2) and a plurality of screen bars (3), wherein two ends of each screen bar (3) are respectively connected with the first pressing plate (1) and the second pressing plate (2), and the plurality of screen bars (3) are annularly distributed between the first pressing plate (1) and the second pressing plate (2); and along the direction that the first pressure plate (1) points to the second pressure plate (2), a screening area (4) is formed by the gap between every two adjacent screen bars (3).

2. The separation device of claim 1, wherein: the separating device further comprises a connecting ring (6), the connecting ring (6) is arranged on the inner side of the plurality of screen bars (3), and the plurality of screen bars (3) are connected with the connecting ring (6) along the circumferential direction of the connecting ring (6).

3. The separation device of claim 2, wherein: the connecting ring (6) is welded with the first end (32) of the inner side of the screen bar (3) or is connected with the clamping groove.

4. The separation device of claim 2, wherein: the connecting ring (6) comprises a first connecting part (61), the screen bars (3) comprise a second connecting part (31), the second connecting part (31) is arranged on the first end (32) on the inner side of the screen bars (3), and the first connecting part (61) is detachably connected with the second connecting part (31).

5. The separation device of claim 4, wherein: one of the first connecting part (61) and the second connecting part (31) is a clamping groove, and the other is a clamping block.

6. The separation device according to any one of claims 1 to 4, wherein: the separating device further comprises a discharge hole (5), wherein the discharge hole (5) is formed in the first pressing plate (1) or the second pressing plate (2) and is communicated with an area surrounded by the plurality of screen bars (3).

7. The separation device according to any one of claims 1 to 4, wherein: the first pressing plate (1) comprises first positioning grooves (11) matched with the screen bars (3), and the first positioning grooves (11) are distributed on the surface of the first pressing plate (1) facing the second pressing plate (2) along the shape of a ring; and/or the presence of a gas in the gas,

the second pressure disk (2) include with the second constant head tank of grating (3) looks adaptation, the second constant head tank is followed the annular and is distributed second pressure disk (2) face on the quotation of first pressure disk (1).

8. The separation device according to any one of claims 1 to 4, wherein: the separating device comprises a fastening element (9), wherein the fastening element (9) is connected with the first pressure plate (1) and the second pressure plate (2) so as to connect the screen bars (3) between the first pressure plate (1) and the second pressure plate (2).

9. The separation device according to any one of claims 1 to 4, wherein: the cross section of the screen bar (3) is T-shaped or triangular, a plurality of second ends (33) with larger width of the screen bar (3) are arranged outwards, and gaps between the second ends (33) of the screen bar (3) are adjacent to each other to form the screening area (4).

10. A grinding machine characterized in that: comprising a grinding cylinder and a separating device according to any one of claims 1 to 9, which is arranged in the grinding cylinder.