CN210357394U

CN210357394U - Grinding machine with dynamic screen

Info

Publication number: CN210357394U
Application number: CN201920837295.6U
Authority: CN
Inventors: 邓世军; 宋克甫; 余伟
Original assignee: DONGGUAN LONGLY MACHINERY CO LTD
Current assignee: DONGGUAN LONGLY MACHINERY CO LTD
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-04-21
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a grind machine with dynamic screen cloth, this machine of grinding include feed inlet, discharge gate and grind the chamber, grind being equipped with of intracavity and grind rotor and ejection of compact rotor, should grind the rotor and grind the material through grinding medium, locate the inside dynamic screen cloth of ejection of compact rotor, this dynamic screen cloth with ejection of compact rotor relatively fixed sets up, and follow ejection of compact rotor rotates together. The utility model discloses a dynamic screen cloth rotates along with ejection of compact rotor, and thicker material and impurity can not the adhesion on the screen cloth, and ejection of compact flow is big.

Description

Grinding machine with dynamic screen

Technical Field

The utility model relates to a grinding device field, concretely relates to grind machine with dynamic screen cloth.

Background

In a grinding device, grinding media are driven to move at a high speed by a grinding rotor, grinding media are extruded and collided with each other to crush grinding materials, particles are ground, and the materials are separated from the grinding media by centrifugal force of a discharge rotor.

In the prior art, the ground material flows out of the discharge opening of the grinding machine after passing through the screen in the discharge rotor.

The utility model discloses the people is realizing utility model technical scheme's in-process in the embodiment of this application, discovers that above-mentioned technique has following technical problem at least: coarser ground material and impurities can adhere to the screen, affecting the discharge flow.

SUMMERY OF THE UTILITY MODEL

The embodiment of this application has solved current thick ground material and impurity and can adhere on the screen cloth, influences the problem of ejection of compact flow through providing a grind machine with dynamic screen cloth.

In order to achieve the above object in the prior art, the utility model adopts the following technical scheme:

a mill with a dynamic screen, comprising a feed inlet, a discharge outlet and a grinding chamber, in which are arranged a grinding rotor and a discharge rotor, which grind material by means of grinding media, further comprising: and the dynamic screen is arranged in the discharging rotor, is relatively fixedly arranged with the discharging rotor and rotates along with the discharging rotor.

Further, still include: the static ring is fixedly arranged on one side, adjacent to the discharge hole, in the grinding cavity; the movable ring is fixedly arranged on one side of the discharging rotor, which is adjacent to the discharging port; and a gap for blocking the grinding medium is arranged between the static ring and the dynamic ring.

Further, the gap is smaller than a diameter of the grinding media.

Further, the gap between the static ring and the dynamic ring is 1/4-1/3 of the diameter of the grinding medium.

Further, the grinding cavity is internally provided with a connecting piece on the side wall adjacent to the discharge port, and the static ring is fixedly arranged on the connecting piece.

Furthermore, a movable ring base is arranged on one side, adjacent to the discharge port, of the discharge rotor, and the movable ring is fixedly arranged on the movable ring base.

Further, the discharging rotor is driven by a rotating shaft, and a mechanical seal is arranged on the rotating shaft at a position adjacent to the discharging hole.

Furthermore, a bearing seat is arranged on one side of the machine seal, and a bearing is arranged inside the bearing seat.

Furthermore, a rotary joint is arranged at the end part of the rotating shaft.

Further, a plurality of grinding blocks are arranged on the grinding rotor along the circumferential direction.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a dynamic screen cloth rotates along with ejection of compact rotor, and thicker material and impurity can not the adhesion on the screen cloth, and ejection of compact flow is big.

Drawings

Fig. 1 is a sectional view of a grinding mill according to an embodiment of the present invention;

the grinding machine comprises a grinding machine body 1, a feeding hole 2, a grinding rotor 3, a grinding block 4, a discharging rotor 5, a dynamic screen 6, a moving ring 7, a static ring 8, a discharging hole 9, a machine seal 10, a bearing 11, a bearing seat 12, a belt pulley 13, a rotary joint 14, a grinding cavity 15, a moving ring base 16, a connecting piece 17 and a rotating shaft.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, a grinder, it includes feed inlet 1, discharge gate 8 and grinds chamber 14, is equipped with grinding rotor 2 and ejection of compact rotor 4 in grinding chamber 14, is equipped with a plurality of grinding block 3 along the circumferencial direction grinding rotor 2. After entering the grinding chamber 14 from the feed inlet 1, the ground material is ground by grinding media (grinding balls, etc.), and most of the ground material and the grinding media are discharged from the discharge outlet 8 after being separated. A small portion will reach the end of the outfeed rotor adjacent the outfeed.

As shown in figure 1, a dynamic screen 5 is arranged in the discharging rotor 4, the dynamic screen 5 rotates along with the discharging rotor, coarser materials and impurities cannot be adhered to the screen, and the discharging flow is large. And under the effect of the centrifugal force of the discharging rotor, the grinding medium cannot enter the discharging rotor, so that the discharging screen mesh cannot be abraded.

As shown in fig. 1, a moving ring 6 and a stationary ring 7 are disposed in the grinding chamber. The movable ring 6 is fixedly arranged on one side of the discharging rotor 4 close to the discharging hole. The stationary ring 7 is fixedly arranged inside the grinding chamber 14 on the side adjacent to the discharge opening 8. The gap between the moving ring 6 and the stationary ring 7 can block the grinding medium. Preferably, the gap is smaller than the diameter of the grinding media. Preferably, the clearance between the movable ring 6 and the fixed ring 7 is 1/4-1/3 of the diameter of the grinding medium

As shown in fig. 1, a side of the discharging rotor 4 adjacent to the discharging port is provided with a rotating ring base 15, and the rotating ring 6 is fixedly arranged on the rotating ring base 15.

As shown in fig. 1, a connecting piece 16 is provided on the side wall of the grinding chamber interior 14 adjacent to the discharge opening 8, and the stationary ring 7 is fixedly arranged on the connecting piece 16.

As shown in fig. 1, the discharge rotor 4 is driven by a shaft 17 which is provided with a mechanical seal 9 adjacent to the discharge opening 8. One side of the mechanical seal 9 is provided with a bearing seat 12, and a bearing 10 is arranged inside the bearing seat. The shaft 17 is driven by the pulley 12. The end of the rotating shaft 17 is provided with a rotary joint 13.

The gap between the end faces of the moving ring and the static ring is smaller than the diameter of the grinding medium, the grinding material can be discharged from the gap, and the grinding medium is trapped in the grinding cavity to prevent the grinding medium from flowing to the discharge port from the end part of the discharge rotor.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A mill with dynamic screen, the mill including feed inlet, discharge gate and grinding chamber, be equipped with grinding rotor and ejection of compact rotor in the grinding chamber, this grinding rotor grinds the material through grinding media, its characterized in that still includes: and the dynamic screen is arranged in the discharging rotor, is relatively fixedly arranged with the discharging rotor and rotates along with the discharging rotor.

2. A grinding mill with dynamic screen according to claim 1, characterized in that:

the static ring is fixedly arranged on one side, adjacent to the discharge hole, in the grinding cavity;

the movable ring is fixedly arranged on one side of the discharging rotor, which is adjacent to the discharging port;

and a gap for blocking the grinding medium is arranged between the static ring and the dynamic ring.

3. A grinding mill with dynamic screen according to claim 2, characterized in that: the gap is smaller than the diameter of the grinding media.

4. A grinding mill with dynamic screen according to claim 2, characterized in that: the gap between the static ring and the dynamic ring is 1/4-1/3 of the diameter of the grinding medium.

5. A grinding mill with dynamic screen according to claim 2, characterized in that: the grinding cavity is internally provided with a connecting piece on the side wall adjacent to the discharge port, and the static ring is fixedly arranged on the connecting piece.

6. A grinding mill with dynamic screen according to claim 2, characterized in that: and a movable ring base is arranged on one side of the discharging rotor, which is adjacent to the discharging port, and the movable ring is fixedly arranged on the movable ring base.

7. A grinding mill with dynamic screen according to claim 2, characterized in that: the discharging rotor is driven by a rotating shaft, and a mechanical seal is arranged on the rotating shaft at a position adjacent to the discharging port.

8. A grinding mill with dynamic screen according to claim 7, characterized in that: and a bearing seat is arranged on one side of the mechanical seal, and a bearing is arranged in the bearing seat.

9. A grinding mill with dynamic screen according to claim 8, characterized in that: and a rotary joint is arranged at the end part of the rotating shaft.

10. A grinding mill with dynamic screen according to claim 1, characterized in that: and a plurality of grinding blocks are arranged on the grinding rotor along the circumferential direction.