CN215902204U - Separator and grinding machine - Google Patents

Abstract

The utility model relates to a field of grinding device specifically discloses a separator and grinds machine, a separator, including stator and rotor, the rotor rotates to be connected in the inboard of stator, and a plurality of logical grooves have been seted up to stator circumference, and the rotor includes top ring, end ring and a plurality of blades of fixed connection between top ring and end ring, and the top between rotor and the stator is sealed. A grinding mill comprising a housing, a separator according to claims 1 to 6, the separator being arranged in the housing, the stator being fixedly attached to the housing with a gap between the circumference of the stator and the inner wall of the housing, the top between the stator and the housing being closed. This application has the effect that improves selection powder efficiency.

Description

Separator and grinding machine

Technical Field

The application relates to the field of grinding equipment, in particular to a separator and a grinding machine.

Background

At present, the air flow grinder is widely used for ceramic pigment, medicine, biochemistry, PVC and the like. In the working state, the airflow enters the crushing cavity, the airflow drives the materials in the crushing cavity to be repeatedly collided, rubbed and sheared for crushing, the crushed materials move to the separator along with the ascending airflow, the powder with the target particle size is separated under the action of the separator, and the powder which does not reach the target particle size is continuously crushed by the airflow.

In the related technology, the separator comprises a front impeller disc, a rear impeller disc and a plurality of blades, the blades are fixedly connected between the front impeller disc and the rear impeller disc and enclose a circle, a feeding seam is arranged between every two adjacent blades, and a cavity is formed on the inner side of the circle of blades. The separation efficiency of the powder is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the separation efficiency, the application provides a separator and a grinding mill.

In a first aspect, the present application provides a separator, which adopts the following technical solutions:

the utility model provides a separator, includes stator and rotor, the rotor rotates to be connected in the inboard of stator, and a plurality of logical grooves have been seted up to the stator circumference, and the rotor includes top ring, end ring and a plurality of blades of fixed connection between top ring and end ring, and the top between rotor and the stator is sealed.

By adopting the technical scheme, when the rotor rotates, negative pressure is generated, the air current carries the powder with the target particle size to enter the stator from the through groove and then enter the rotor from the space between the blades, and the powder with the target particle size is separated from the top of the rotor; when large-particle powder which does not reach the target particle size enters the stator from the through groove, namely, certain disturbance is generated due to the change of air flow, the powder with larger particles falls, and the powder which enters the through groove is further impacted by the rotating blade, so that the powder with larger particle size which does not reach the target particle size further falls; therefore, in the separation process of the target powder, the large-particle powder is separated to a certain extent in the processes of entering the stator and entering the rotor, and the separation efficiency of the target particle size powder is improved; in the process that the wind passes through the through groove, the wind can cool the stator, so that the stator can keep a certain temperature, and materials with lower melting points such as resin and the like cannot be melted; and the powder enters the separator from the outside of the stator, the powder with the target particle size is separated from the middle part of the rotor, the powder with large particles which do not reach the target particle size falls down from the space between the stator and the rotor, the material is not easy to form short circuit, and the cavitation phenomenon is greatly slowed down.

Optionally, a long plate parallel to the axis of the rotor is connected to the inner side of the stator in the circumferential direction, and the long plate is obliquely arranged along the rotation direction of the rotor.

By adopting the technical scheme, the powder entering the stator from the through groove is impacted by the rotor, the powder with smaller particle size still has smaller weight and can still be driven by wind to enter the middle position of the rotor so as to be separated, the powder with larger particle size is impacted by the blades and then further impacted with the long plate, and the powder with larger particle size is impacted twice continuously, is knocked down and then is continuously ground; therefore, the powder with the small particle size and the powder with the large particle size can be separated more quickly and completely, the powder selecting efficiency is improved, and the working efficiency is improved.

Optionally, the inner side of the circumferential direction of the stator is connected with a short plate parallel to the axis of the rotor, the short plate is obliquely arranged along the rotating direction of the rotor, the short plate and the long plate are sequentially arranged, and the long plate is opposite to the through groove.

By adopting the technical scheme, when the wind brings the powder into the stator from the through groove, the wind hits one side of the long plate, which is far away from the axis of the rotor, part of the larger-particle material falls down, and the wind forms a small vortex at the position of the short plate after entering from the through groove, so that part of the larger-particle powder which does not reach the target particle size further falls down, and the selection of the target-particle-size powder is facilitated; and the powder on the long plate can be taken away due to the formation of the small vortex, and the long plate is not easy to accumulate.

Optionally, a connecting plate is connected between the adjacent short plate and the long plate along the rotation direction of the rotor, the connecting plate is connected to one end, away from the rotor, of the long plate and the short plate, and a fixing bolt is connected between the connecting plate and the stator.

Through adopting above-mentioned technical scheme, the connecting plate is connected together long board and short slab, and through fixing bolt, short board, long board, connecting plate can all be connected with the stator for short board and long board are comparatively convenient with being connected of stator.

Optionally, one side of the connecting plate connected with the long plate is integrally connected with a connecting part, and a connecting bolt is connected between the long plate and the connecting part.

By adopting the technical scheme, the connecting bolt is unscrewed, and the long plate and the connecting part can be detached, so that the long plate can be independently replaced without integrally replacing the long plate, the connecting plate and the short plate when the long plate is damaged; the connecting part plays a certain reinforcing role in the long plate, so that the connection between the long plate and the connecting plate is more stable.

Optionally, a supporting plate is connected between one side of the short plate, which faces away from the rotor, and the connecting plate.

Through adopting above-mentioned technical scheme, the backup pad plays the supporting role to the short slab for the short slab is difficult for producing the deformation.

In a second aspect, the present application provides a grinding machine, which adopts the following technical solutions:

a grinding machine comprises a machine shell and a separator, wherein the separator is arranged in the machine shell, a stator is fixedly connected in the machine shell, a gap is reserved between the circumferential direction of the stator and the inner wall of the machine shell, the top between the stator and the machine shell is closed, a grinding assembly is arranged in the machine shell, and the grinding assembly is located below the separator.

Through adopting above-mentioned technical scheme, there is certain clearance between stator and the casing, and the rotor rotates and forms certain negative pressure, and wind brings the tiny particle powder and enters into the gap between stator and the casing, then enters into the stator from leading to the groove, then enters into the rotor middle part between the blade of rotor, and does not reach the great particle powder of target particle diameter and stator and pivoted rotor collision back, drops from between stator and the rotor, then continues to be ground by grinding component.

Optionally, the grinding assembly includes a grinding disc and an airflow guide ring, the grinding disc is rotatably connected in the casing, the grinding disc is located below the stator, a grinding hammer is fixedly connected to the edge of the upper surface of the grinding disc, a grinding lining is connected to the inner wall of the casing, the grinding hammer is aligned to the grinding lining, a nozzle ring is arranged between the edge of the grinding disc and the grinding disc, the nozzle ring is communicated with an air source, the airflow guide ring is fixedly connected in the casing, the axis of the airflow guide ring is coaxial with the stator, the airflow guide ring is flared upwards, the bottom of the airflow guide ring is located above the grinding disc, and the top of the airflow guide ring is aligned to the space between the stator and the casing.

By adopting the technical scheme, the air source can be a fan, the material to be ground enters the grinding disc from the shell, the grinding disc rotates to generate centrifugal force, the material to be ground moves to the edge position of the grinding disc, the air is sprayed out from the nozzle ring, the high-speed air drives the material to move upwards to be hit on the grinding hammer and the grinding lining, and the material is repeatedly collided, rubbed and sheared to be ground; the material with smaller grain diameter is guided by the airflow guide ring, is driven by wind to move upwards, then enters the separator to finish the separation of the target grain diameter particles, and the powder with larger grain diameter falls back to the grinding disc to be continuously ground.

Optionally, the grinding hammer comprises a grinding part and a fixing part, the grinding part is vertically arranged, the fixing part is horizontally arranged and fixedly connected to the bottom of the grinding part, a notch is formed in the top of the grinding part, facing the center of the grinding disc, on one side of the position, the bottom of the airflow guide ring is located at the position of the notch, and a countersunk head bolt is connected between the fixing part and the grinding disc.

By adopting the technical scheme, the grinding hammer is structurally arranged, so that a larger area of collision and friction with materials can be generated in the vertical direction, and the material is ground at a higher speed; the fixed part and the grinding disc are connected through the countersunk head bolt, and meanwhile, due to the fact that the top of the countersunk head bolt does not protrude out of the surface of the fixed part, accumulated materials are not prone to being generated at the edge position of the grinding disc.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the stator and the rotor, large-particle powder is separated to a certain extent in the process of entering the stator and the process of entering the rotor, the separation efficiency of the target-particle-size powder is improved, the material is not easy to form short circuit, and the cavitation phenomenon is greatly slowed down;

2. through setting up long board and short slab, the great powder of particle diameter is further strikeed with the long board after being strikeed by the blade of rotor, and great particle diameter powder is faster and more complete and target particle diameter powder separation, has improved selection powder efficiency, wholly improves work efficiency about 15%.

Drawings

FIG. 1 is a schematic view of the structure of a separator in example 1;

FIG. 2 is a schematic view of the whole structure in embodiment 2;

FIG. 3 is a sectional view in the direction of the axis of a casing of the grinding mill in embodiment 2;

FIG. 4 is a partially enlarged schematic view of portion A of FIG. 3;

fig. 5 is a schematic view of a structure intended to embody a pilot cone.

Description of reference numerals: 1. a housing; 11. a grinding disk; 12. grinding the liner; 13. a nozzle ring; 14. a discharge port; 15. a feed inlet; 2. grinding a hammer; 21. a grinding section; 211. a notch; 212. a countersunk bolt; 22. a fixed part; 3. an airflow guide ring; 4. a guide cone; 41. adjusting the bolt; 5. a stator; 51. a through groove; 52. a long plate; 53. a connecting plate; 531. fixing the bolt; 532. a connecting portion; 533. a connecting bolt; 54. a short plate; 541. a support plate; 6. a rotor; 61. a top ring; 62. a bottom ring; 621. a guide cone; 63. a blade.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a separator.

Example 1

Referring to fig. 1, a separator includes stator 5 and rotor 6, stator 5 and rotor 6 are the cylinder, stator 5 and rotor 6 are coaxial, rotor 6 is located the inboard of stator 5, stator 5 has seted up a plurality of logical groove 51 in week, it can be rectangular shape for various shapes to lead to groove 51, circular etc., it is vertical circular to lead to groove 51 in this embodiment, rotor 6 includes top ring 61, end ring 62 and a plurality of blades 63 of fixed connection between top ring 61 and end ring 62, top ring 61 is rotated with the top of stator 5 and is connected, top between rotor 6 and the stator 5 is sealed, the bottom of stator 5 is the opening form, end ring 62 fixedly connected with upwards is the guide cone 621 that the throat form, the top of guide cone 621 is connected with the driving motor who drives rotor 6 pivoted.

Referring to fig. 1, a long plate 52 and a vertical short plate 54 parallel to the axis of the rotor 6 are connected to the inner side of the circumferential direction of the stator 5, the long plate 52 and the short plate 54 are both disposed obliquely along the rotation direction of the rotor 6, the short plate 54 and the long plate 52 are sequentially disposed, the short plate 54 and the long plate 52 are located at the vertical edge position of the through groove 51, and the long plate 52 and the short plate 54 are sequentially disposed on both sides of the through groove 51 along the rotation direction of the rotor 6, so that the oblique long plate 52 faces the through groove 51. The wind, carrying the powders into the through slots 51, first strikes the long plate 52 and forms a small vortex due to the action of the short plate 54, so that the powders of larger particles are partially separated and the powders of the long plate 52 facing the axial surface of the rotor 6 can be carried away by the small vortex.

Referring to fig. 1, a connecting plate 53 is connected between adjacent short plates 54 and long plates 52 along the rotation direction of the rotor 6, the connecting plate 53 is connected to one ends of the long plates 52 and short plates 54 away from the rotor 6, and fixing bolts 531 are connected between the connecting plate 53 and the stator 5, so that the long plates 52 and short plates 54 are more conveniently fixed on the stator 5.

Referring to fig. 1, a connection portion 532 is integrally connected to one side of the connection plate 53 connected to the long plate 52, a connection bolt 533 is connected between the long plate 52 and the connection portion 532, and the long plate 52 is detachably connected to facilitate replacement when the long plate 52 is damaged. One side of short plate 54 that deviates from rotor 6 and connecting plate 53 are connected with backup pad 541 between, and backup pad 541 plays the supporting role to short plate 54 for short plate 54's position is more stable and non-deformable.

The implementation principle of a separator in the embodiment of the application is as follows: rotor 6 rotates, inside the stator 5 was entered into to gaseous powder of smuggleing secretly from leading to groove 51 of stator 5, the air current at first collided the one side that rotor 6 axis was kept away from to long board 52, the great powder of partial particle diameter drops, later the air current is because the effect of short slab 54 produces little vortex, the great granule powder that does not reach the target particle diameter drops, and little vortex makes the powder on the long board 52 can be taken away, difficult long-pending material on the long board 52, later the powder in the air current further receives the collision of the blade 63 of rotor 6, little granule material is still driven by wind and is got into rotor 6 middle part, the large granule material receives on the long board 52 is collided again after the blade 63 striking, then drop between stator 5 and rotor 6, the difficult short circuit that forms of material. The whole process can be separated from the small particle materials more quickly and completely, the powder selecting efficiency is improved, and the working efficiency is improved by about 15%.

The embodiment of the application discloses a grinding machine.

Example 2

Referring to fig. 2 and 3, a grinder includes a housing 1, and the separator of embodiment 1, where the separator is disposed in the housing 1, a stator 5 is fixedly connected in the housing 1, a gap is formed between the circumference of the stator 5 and the inner wall of the housing 1, the top between the stator 5 and the housing 1 is closed, a grinding assembly is disposed in the housing 1, the grinding assembly is located below the separator, the top of the housing 1 is provided with a discharge hole 14 communicated with the top of the separator, and the housing 1 is provided with a feed hole 15 for feeding. The mill has a high dressing efficiency, which is improved by about 15% compared to a separator without the stator 5 and with only the rotor 6.

Referring to fig. 3, the grinding assembly includes a grinding disc 11 and an airflow guide ring 3, the grinding disc 11 is rotatably connected in the casing 1, a rotation axis of the grinding disc 11 is coaxial with a rotation axis of the rotor 6, the grinding disc 11 is located below the stator 5, an edge position of an upper surface of the grinding disc 11 is fixedly connected with a grinding hammer 2, an inner wall of the casing 1 is connected with a grinding lining 12, the grinding hammer 2 is opposite to the grinding lining 12, a nozzle ring 13 is arranged between an edge of the grinding disc 11 and the grinding disc 11, the nozzle ring 13 is communicated with an air source, the airflow guide ring 3 is fixedly connected in the casing 1, an axis of the airflow guide ring 3 is coaxial with the stator 5, the airflow guide ring 3 is flared upwards, a bottom of the airflow guide ring 3 is located above the grinding disc 11, and a top of the airflow guide ring 3 is opposite to a position between the stator 5 and the casing 1.

Referring to fig. 3 and 4, the grinding hammer 2 includes a grinding portion 21 and a fixing portion 22, the grinding portion 21 is vertically disposed, the fixing portion 22 is horizontally disposed, and the fixing portion 22 is integrally connected to the bottom of the grinding portion 21, a notch 211 is formed in the top of the grinding portion 21 facing the center of the grinding disc 11, the bottom of the airflow guiding ring 3 is located at the notch 211, and a countersunk head bolt 212 is connected between the fixing portion 22 and the grinding disc 11.

Referring to fig. 3 and 5, the grinding disc 11 is connected with a guide cone 4, the guide cone 4 is slidably connected with the grinding disc 11 along the radial direction of the grinding disc 11, the guide cone 4 is opposite to the grinding disc 11, the guide cone 4 is rotatably connected with an adjusting bolt 41, the adjusting bolt 41 penetrates through the casing 1 and is in threaded connection with the casing 1, the guide cone 4 protrudes out of the inner surface of the grinding disc 11, along the rotating direction of the grinding disc 11, the size of the guide cone 4 protruding out of the inner surface of the grinding disc 11 is increased, the guide cone 4 is arranged in a plurality along the circumferential direction of the grinding disc 11, and the guide cones 4 are uniformly distributed. The adjusting bolt 41 is rotated, the adjusting bolt 41 drives the guide cone 4 to move along the radial direction of the grinding disc 11, so that the size of the section of the nozzle ring 13 perpendicular to the axis of the grinding disc 11 is changed, and the target particle size of powder sorting can be adjusted. The particle size of the sorted powder can also be further adjusted by changing the rotating speed of the rotor 6, the air quantity of the nozzle ring 13 entering from the air source and the rotating speed of the grinding disc 11.

The implementation principle of the grinder in the embodiment of the application is as follows: the material enters the machine shell 1 from the feed inlet 15, then falls onto the grinding disc 11, the material is uniformly distributed at the edge position of the grinding disc 11 along with the rotation of the grinding disc 11, then the material is driven by the airflow blown out by the nozzle ring 13 to move upwards, the material is repeatedly collided, rubbed and sheared to be crushed, the small particle material is driven by the airflow to upwards move along the outer side of the airflow guide ring 3 until entering the separator from the through groove 51, then the powder with the target particle size is separated by the separator to finish discharging from the discharge hole 14, and the large particle material falls back to the grinding disc 11 to be continuously ground.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. A separator, characterized by: including stator (5) and rotor (6), rotor (6) rotate to be connected in the inboard of stator (5), and stator (5) have seted up a plurality of logical grooves (51) on the circumference, and rotor (6) are including top circle (61), end circle (62) and a plurality of blades (63) of fixed connection between top circle (61) and end circle (62), and the top between rotor (6) and stator (5) is sealed.

2. A separator as claimed in claim 1, wherein: the inner side of the stator (5) in the circumferential direction is connected with a long plate (52) parallel to the axis of the rotor (6), and the long plate (52) is obliquely arranged along the rotating direction of the rotor (6).

3. A separator as claimed in claim 2, wherein: the inner side of the circumferential direction of the stator (5) is connected with a short plate (54) parallel to the axis of the rotor (6), the short plate (54) is obliquely arranged along the rotating direction of the rotor (6), the short plate (54) and the long plate (52) are sequentially arranged, and the long plate (52) is opposite to the through groove (51).

4. A separator as claimed in claim 3, wherein: along the direction of rotation of rotor (6), be connected with connecting plate (53) between adjacent short slab (54) and long slab (52), connecting plate (53) are connected in long slab (52) and short slab (54) keep away from the one end of rotor (6), are connected with fixing bolt (531) between connecting plate (53) and stator (5).

5. A separator according to claim 4, wherein: one side of the connecting plate (53) connected with the long plate (52) is integrally connected with a connecting part (532), and a connecting bolt (533) is connected between the long plate (52) and the connecting part (532).

6. A separator according to claim 4, wherein: and a supporting plate (541) is connected between one side of the short plate (54) departing from the rotor (6) and the connecting plate (53).

7. A grinding mill comprising a housing (1), a separator according to claims 1-6, the separator being arranged in the housing (1), characterized in that: stator (5) fixed connection is in casing (1), and gapped between the circumference of stator (5) and casing (1) inner wall, and the top between stator (5) and casing (1) is sealed, is provided with grinding assembly in casing (1), and grinding assembly is located the separator below.

8. A grinding mill according to claim 7, characterized in that: grinding unit includes abrasive disc (11) and air current guide ring (3), abrasive disc (11) rotate to be connected in casing (1), abrasive disc (11) are located the below of stator (5), the marginal position fixedly connected with grinding hammer (2) of abrasive disc (11) upper surface, casing (1) inner wall is connected with grinding inside lining (12), grinding hammer (2) are just right with grinding inside lining (12), be spout ring (13) between abrasive disc (11) edge and abrasive disc (11), spout ring (13) and air supply intercommunication, air current guide ring (3) fixed connection is in casing (1), the axis and the stator (5) of air current guide ring (3) are coaxial, air current guide ring (3) upwards are the flaring, the bottom of air current guide ring (3) is located abrasive disc (11) top, the top of air current guide ring (3) is just to between stator (5) and casing (1).

9. A grinding mill according to claim 8, characterized in that: grinding hammer (2) is including grinding portion (21) and fixed part (22), and grinding portion (21) is vertical to be set up, and fixed part (22) level setting and fixed connection are in the bottom of grinding portion (21), and the top of grinding portion (21) towards the position one side at abrasive disc (11) center is seted up jaggedly (211), and the bottom of air current guide ring (3) is located jaggedly (211) position, is connected with countersunk bolt (212) between fixed part (22) and abrasive disc (11).

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